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linux/scripts/mod/modpost.c

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
Linux Kernel Markers: create modpost file This adds some new magic in the MODPOST phase for CONFIG_MARKERS. Analogous to the Module.symvers file, the build will now write a Module.markers file when CONFIG_MARKERS=y is set. This file lists the name, defining module, and format string of each marker, separated by \t characters. This simple text file can be used by offline build procedures for instrumentation code, analogous to how System.map and Module.symvers can be useful to have for kernels other than the one you are running right now. The strings are made easy to extract by having the __trace_mark macro define the name and format together in a single array called __mstrtab_* in the __markers_strings section. This is straightforward and reliable as long as the marker structs are always defined by this macro. It is an unreasonable amount of hairy work to extract the string pointers from the __markers section structs, which entails handling a relocation type for every machine under the sun. Mathieu : - Ran through checkpatch.pl Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: David Smith <dsmith@redhat.com> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-13 15:03:39 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
fix "scripts/mod/modpost.c: fix memory leak" Fix error introduced by 37ed19d5cce35a40d3913cf9aa208ce9f60db3d7 ("scripts/mod/modpost.c: fix memory leak"). - don't kfree("") - fix one missed conversion Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Tested-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11 00:42:26 -07:00
modpost: add -T option to read module names from file/stdin. Because there are too many modules in the world. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-04-04 17:37:38 +10:30
modpost: minor cleanup. We want a strends() function next, so make one and use it appropriately, making new_module() arg const while we're at it. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-04-04 17:37:32 +10:30
modpost: Optionally ignore secondary errors seen if a single module build fails Commit ea4054a23 (modpost: handle huge numbers of modules) added support for building a large number of modules. Unfortunately, the commit changed the semantics of the makefile: Instead of passing only existing object files to modpost, make now passes all expected object files. If make was started with option -i, this results in a modpost error if a single file failed to build. Example with the current btrfs build falure on m68k: fs/btrfs/btrfs.o: No such file or directory make[1]: [__modpost] Error 1 (ignored) This error is followed by lots of errors such as: m68k-linux-gcc: error: arch/m68k/emu/nfcon.mod.c: No such file or directory m68k-linux-gcc: fatal error: no input files compilation terminated. make[1]: [arch/m68k/emu/nfcon.mod.o] Error 1 (ignored) This doesn't matter much for normal builds, but it is annoying for builds started with "make -i" due to the large number of secondary errors. Those errors unnececessarily clog any error log and make it difficult to find the real errors in the build. Fix the problem by adding a new parameter '-n' to modpost. If this parameter is specified, modpost reports but ignores missing object files. With this patch, error output from above problem is (with make -i): m68k-linux-ld: cannot find fs/btrfs/ioctl.o: No such file or directory make[2]: [fs/btrfs/btrfs.o] Error 1 (ignored) ... fs/btrfs/btrfs.o: No such file or directory (ignored) Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michael Marek <mmarek@suse.cz> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-09-23 15:23:54 +09:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: check license compatibility when building modules Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher <agruen@suse.de> and Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 21:53:55 +02:00
module: make MODULE_SYMBOL_PREFIX into a CONFIG option The next commit will require the use of MODULE_SYMBOL_PREFIX in .tmp_exports-asm.S. Currently it is mixed in with C structure definitions in "asm/module.h". Move the definition of this arch option into Kconfig, so it can be easily accessed by any code. This also lets modpost.c use the same definition. Previously modpost relied on a hardcoded list of architectures in mk_elfconfig.c. A build test for blackfin, one of the two MODULE_SYMBOL_PREFIX archs, showed the generated code was unchanged. vmlinux was identical save for build ids, and an apparently randomized suffix on a single "__key" symbol in the kallsyms data). Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Acked-by: Mike Frysinger <vapier@gentoo.org> (blackfin) CC: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-11-07 21:03:54 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: reduce visibility of symbols and constify r/o arrays Internally used symbols of modpost don't need to be externally visible; make them static. Also constify the string arrays so they resist in the r/o section instead of being runtime writable. Those changes lead to a small size reduction as can be seen below: text data bss dec hex filename 51381 2640 12416 66437 10385 scripts/mod/modpost.old 51765 2224 12416 66405 10365 scripts/mod/modpost.new Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-08-27 20:28:53 +09:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: reduce visibility of symbols and constify r/o arrays Internally used symbols of modpost don't need to be externally visible; make them static. Also constify the string arrays so they resist in the r/o section instead of being runtime writable. Those changes lead to a small size reduction as can be seen below: text data bss dec hex filename 51381 2640 12416 66437 10385 scripts/mod/modpost.old 51765 2224 12416 66405 10365 scripts/mod/modpost.new Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-08-27 20:28:53 +09:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
kbuild: do not do section mismatch checks on vmlinux in 2nd pass We already check and warn about section mismatches from vmlinux (build as vmlinux.o) during first pass so skip the checks during the 2nd pass where we process modules. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-07-20 22:36:56 +02:00
kbuild: fail kernel compilation in case of unresolved module symbols At stage 2 modpost utility is used to check modules. In case of unresolved symbols modpost only prints warning. IMHO it is a good idea to fail compilation process in case of unresolved symbols (at least in modules coming with kernel), since usually such errors are left unnoticed, but kernel modules are broken. - new option '-w' is added to modpost: if option is specified, modpost only warns about unresolved symbols - modpost is called with '-w' for external modules in Makefile.modpost Signed-off-by: Andrey Mirkin <amirkin@sw.ru> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-07 13:08:54 -07:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: Add flag -E for making section mismatches fatal The section mismatch warning can be easy to miss during the kernel build process. Allow it to be marked as fatal to be easily caught and prevent bugs from slipping in. Setting CONFIG_SECTION_MISMATCH_WARN_ONLY=y causes these warnings to be non-fatal, since there are a number of section mismatches when using allmodconfig on some architectures, and we do not want to break these builds by default. Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Change-Id: Ic346706e3297c9f0d790e3552aa94e5cff9897a6 Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-10-06 09:44:42 +10:30
modpost: Optionally ignore secondary errors seen if a single module build fails Commit ea4054a23 (modpost: handle huge numbers of modules) added support for building a large number of modules. Unfortunately, the commit changed the semantics of the makefile: Instead of passing only existing object files to modpost, make now passes all expected object files. If make was started with option -i, this results in a modpost error if a single file failed to build. Example with the current btrfs build falure on m68k: fs/btrfs/btrfs.o: No such file or directory make[1]: [__modpost] Error 1 (ignored) This error is followed by lots of errors such as: m68k-linux-gcc: error: arch/m68k/emu/nfcon.mod.c: No such file or directory m68k-linux-gcc: fatal error: no input files compilation terminated. make[1]: [arch/m68k/emu/nfcon.mod.o] Error 1 (ignored) This doesn't matter much for normal builds, but it is annoying for builds started with "make -i" due to the large number of secondary errors. Those errors unnececessarily clog any error log and make it difficult to find the real errors in the build. Fix the problem by adding a new parameter '-n' to modpost. If this parameter is specified, modpost reports but ignores missing object files. With this patch, error output from above problem is (with make -i): m68k-linux-ld: cannot find fs/btrfs/ioctl.o: No such file or directory make[2]: [fs/btrfs/btrfs.o] Error 1 (ignored) ... fs/btrfs/btrfs.o: No such file or directory (ignored) Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michael Marek <mmarek@suse.cz> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-09-23 15:23:54 +09:30
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
kbuild: warn when a moduled uses a symbol marked UNUSED We now have infrastructure in place to mark an EXPORTed symbol as unused. So the natural next step is to warn during buildtime when a module uses a symbol marked UNUSED. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 11:44:23 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: abort if module name is too long Module name has a limited length, but currently the build system allows the build finishing even if the module name is too long. CC /root/kprobe_example/abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz.mod.o /root/kprobe_example/abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz.mod.c:9:2: warning: initializer-string for array of chars is too long [enabled by default] .name = KBUILD_MODNAME, ^ but it's merely a warning. This patch adds the check of the module name length in modpost and stops the build properly. Signed-off-by: Wanlong Gao <wanlong.gao@gmail.com> Signed-off-by: Jessica Yu <jeyu@kernel.org>
2017-06-30 22:07:03 +08:00
kbuild: declare the modpost error functions as printf like This way gcc can warn for wrong format strings Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-11-22 03:43:08 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: declare the modpost error functions as printf like This way gcc can warn for wrong format strings Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-11-22 03:43:08 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: declare the modpost error functions as printf like This way gcc can warn for wrong format strings Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-11-22 03:43:08 +01:00
kbuild: distinguish between errors and warnings in modpost Some of modpost's warnings are fatal, and some are not. Adopt the compiler distinction between errors and warnings by calling merror() for fatal diagnostics and warn() for non-fatal ones. merror() was used as replacemtn for error() to avoid clash with glibc Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-10-07 05:35:32 -06:00
modpost: minor cleanup. We want a strends() function next, so make one and use it appropriately, making new_module() arg const while we're at it. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-04-04 17:37:32 +10:30
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
kbuild: do section mismatch check on full vmlinux Previously we did do the check on the .o files used to link vmlinux but that failed to find questionable references across the .o files. Create a dedicated vmlinux.o file used only for section mismatch checks that uses the defualt linker script so section does not get renamed. The vmlinux.o may later be used as part of the the final link of vmlinux but for now it is used fo section mismatch only. For a defconfig build this is instant but for an allyesconfig this add two minutes to a full build (that anyways takes ~2 hours). Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-07-17 10:54:06 +02:00
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: constify *modname function argument where possible Neither find_module() nor read_symbols() does change *modname. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:40 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: minor cleanup. We want a strends() function next, so make one and use it appropriately, making new_module() arg const while we're at it. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-04-04 17:37:32 +10:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: minor cleanup. We want a strends() function next, so make one and use it appropriately, making new_module() arg const while we're at it. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-04-04 17:37:32 +10:30
kbuild: kill trailing whitespace in modpost & friends Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-03 16:46:04 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: minor cleanup. We want a strends() function next, so make one and use it appropriately, making new_module() arg const while we're at it. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-04-04 17:37:32 +10:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: check license compatibility when building modules Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher <agruen@suse.de> and Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 21:53:55 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
modpost: fix bogus 'exported twice' warnings. Andi's change in e0f244c63fc9 ("asmlinkage, module: Make ksymtab and kcrctab symbols and __this_module __visible") make the crc appear first in the symbol table. modpost creates an entry when it sees the CRC, then when it sees the actual symbol, it complains that it's seen it before. The preloaded flag already exists for the equivalent case where we loaded from Module.symvers, so use that. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Tested-by: The Awesome Power Of linux-next Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-11-07 12:09:13 +10:30
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: reduce visibility of symbols and constify r/o arrays Internally used symbols of modpost don't need to be externally visible; make them static. Also constify the string arrays so they resist in the r/o section instead of being runtime writable. Those changes lead to a small size reduction as can be seen below: text data bss dec hex filename 51381 2640 12416 66437 10385 scripts/mod/modpost.old 51765 2224 12416 66405 10365 scripts/mod/modpost.new Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-08-27 20:28:53 +09:30
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: warn when a moduled uses a symbol marked UNUSED We now have infrastructure in place to mark an EXPORTed symbol as unused. So the natural next step is to warn during buildtime when a module uses a symbol marked UNUSED. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 11:44:23 +02:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: warn when a moduled uses a symbol marked UNUSED We now have infrastructure in place to mark an EXPORTed symbol as unused. So the natural next step is to warn during buildtime when a module uses a symbol marked UNUSED. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 11:44:23 +02:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: fix segv in modpost Parsing an old Modules.symvers file casued modpost to SEGV. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 10:10:19 +02:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
modpost: simplify sec_name() There is code duplication between sec_name() and sech_name(). Simplify sec_name() by re-using sech_name(). Also, move them up to remove the forward declaration of sec_name(). Link: http://lkml.kernel.org/r/1502248721-22009-1-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Kees Cook <keescook@chromium.org> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Jessica Yu <jeyu@redhat.com> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Heinrich Schuchardt <xypron.glpk@gmx.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-09-06 16:19:05 -07:00
modpost: Fix modpost's license checking V3 The commit f02e8a6 sorts symbols placing each of them in its own elf section. The sorting and merging into the canonical sections are done by the linker. Unfortunately modpost to generate Module.symvers file parses vmlinux (already linked) and all modules object files (which aren't linked yet). These aren't sanitized by the linker yet. That breaks modpost that can't detect license properly for modules. This patch makes modpost aware of the new exported symbols structure. Thanks to Arnaud Lacombe <lacombar@gmail.com> and Anders Kaseorg <andersk@ksplice.com> for providing useful suggestions about code. This work was supported by a hardware donation from the CE Linux Forum. Reported-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Alessio Igor Bogani <abogani@kernel.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-07-14 08:51:16 +02:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: warn when a moduled uses a symbol marked UNUSED We now have infrastructure in place to mark an EXPORTed symbol as unused. So the natural next step is to warn during buildtime when a module uses a symbol marked UNUSED. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 11:44:23 +02:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: warn when a moduled uses a symbol marked UNUSED We now have infrastructure in place to mark an EXPORTed symbol as unused. So the natural next step is to warn during buildtime when a module uses a symbol marked UNUSED. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 11:44:23 +02:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: warn about duplicate exported symbols In modpost introduce a check for symbols exported twice. This check caught only one victim (inet_bind_bucket_create) for which a patch is already sent to netdev. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:22:33 +01:00
kbuild: when warning symbols exported twice now tell user this is the problem Warning now looks like this: WARNING: vmlinux: 'strcpy' exported twice. Previous export was in vmlinux Which gives much better hint how to fix it. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-05 13:48:58 +01:00
kbuild: warn about duplicate exported symbols In modpost introduce a check for symbols exported twice. This check caught only one victim (inet_bind_bucket_create) for which a patch is already sent to netdev. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:22:33 +01:00
kbuild: modpost problem when symbols move from one module to another When part of build an external module tree, modpost first reads in the kernel's and then the external tree's Module.symvers files. From these files it establishes a symbol => module mapping. When it later reads in each module built and processes the symbols it finds, it discovers the symbol=>module mapping from Module.symvers and leaves it as it is. The problem comes with a module has been re-named or a symbol has moved from one module to another, since the Module.symvers file was generated. modpost does not update the symbol=>module mapping when it finds the new location of the symbol when scanning the newly built modules. This results in the module containing incorrect dependency information and the new Module.symvers file written by modpost will also contain the incorrect mappings, perpetuating the problem to the next build, and so on. When building the out of kernel development tree for kernel subsystem, like v4l-dvb or ALSA, deleting the external Module.symvers file before building (which the kernel build system doesn't do and shouldn't be necessary anyway), won't fix the problem. modpost still reads the kernel's Module.symvers, and since we a building a kernel subsystem, it will define the same symbols as the external modules. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-11 16:40:10 -07:00
modpost: Fix comment typo "Modules.symvers" Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-04-16 18:05:35 +02:00
kbuild: modpost problem when symbols move from one module to another When part of build an external module tree, modpost first reads in the kernel's and then the external tree's Module.symvers files. From these files it establishes a symbol => module mapping. When it later reads in each module built and processes the symbols it finds, it discovers the symbol=>module mapping from Module.symvers and leaves it as it is. The problem comes with a module has been re-named or a symbol has moved from one module to another, since the Module.symvers file was generated. modpost does not update the symbol=>module mapping when it finds the new location of the symbol when scanning the newly built modules. This results in the module containing incorrect dependency information and the new Module.symvers file written by modpost will also contain the incorrect mappings, perpetuating the problem to the next build, and so on. When building the out of kernel development tree for kernel subsystem, like v4l-dvb or ALSA, deleting the external Module.symvers file before building (which the kernel build system doesn't do and shouldn't be necessary anyway), won't fix the problem. modpost still reads the kernel's Module.symvers, and since we a building a kernel subsystem, it will define the same symbols as the external modules. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-11 16:40:10 -07:00
kbuild: warn about duplicate exported symbols In modpost introduce a check for symbols exported twice. This check caught only one victim (inet_bind_bucket_create) for which a patch is already sent to netdev. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:22:33 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: warn about duplicate exported symbols In modpost introduce a check for symbols exported twice. This check caught only one victim (inet_bind_bucket_create) for which a patch is already sent to netdev. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:22:33 +01:00
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
modpost: fix bogus 'exported twice' warnings. Andi's change in e0f244c63fc9 ("asmlinkage, module: Make ksymtab and kcrctab symbols and __this_module __visible") make the crc appear first in the symbol table. modpost creates an entry when it sees the CRC, then when it sees the actual symbol, it complains that it's seen it before. The preloaded flag already exists for the equivalent case where we loaded from Module.symvers, so use that. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Tested-by: The Awesome Power Of linux-next Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-11-07 12:09:13 +10:30
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
modpost: fix bogus 'exported twice' warnings. Andi's change in e0f244c63fc9 ("asmlinkage, module: Make ksymtab and kcrctab symbols and __this_module __visible") make the crc appear first in the symbol table. modpost creates an entry when it sees the CRC, then when it sees the actual symbol, it complains that it's seen it before. The preloaded flag already exists for the equivalent case where we loaded from Module.symvers, so use that. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Tested-by: The Awesome Power Of linux-next Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-11-07 12:09:13 +10:30
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: Stop grab_file() from leaking filedescriptors if fstat() fails In case the open() call succeeds but the subsequent fstat() call fails, then we'll return without close()'ing the filedescriptor. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-05-23 22:28:49 +09:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: Stop grab_file() from leaking filedescriptors if fstat() fails In case the open() call succeeds but the subsequent fstat() call fails, then we'll return without close()'ing the filedescriptor. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-05-23 22:28:49 +09:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: Stop grab_file() from leaking filedescriptors if fstat() fails In case the open() call succeeds but the subsequent fstat() call fails, then we'll return without close()'ing the filedescriptor. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-05-23 22:28:49 +09:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: Stop grab_file() from leaking filedescriptors if fstat() fails In case the open() call succeeds but the subsequent fstat() call fails, then we'll return without close()'ing the filedescriptor. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-05-23 22:28:49 +09:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: fix section mismatch check for vmlinux vmlinux does not contain relocation entries which is used by the section mismatch checks. Reported by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Use the individual objects as inputs to overcome this limitation. In modpost check the .o files and skip non-ELF files. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-02-26 15:33:52 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: fix section mismatch check for vmlinux vmlinux does not contain relocation entries which is used by the section mismatch checks. Reported by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Use the individual objects as inputs to overcome this limitation. In modpost check the .o files and skip non-ELF files. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-02-26 15:33:52 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: Optionally ignore secondary errors seen if a single module build fails Commit ea4054a23 (modpost: handle huge numbers of modules) added support for building a large number of modules. Unfortunately, the commit changed the semantics of the makefile: Instead of passing only existing object files to modpost, make now passes all expected object files. If make was started with option -i, this results in a modpost error if a single file failed to build. Example with the current btrfs build falure on m68k: fs/btrfs/btrfs.o: No such file or directory make[1]: [__modpost] Error 1 (ignored) This error is followed by lots of errors such as: m68k-linux-gcc: error: arch/m68k/emu/nfcon.mod.c: No such file or directory m68k-linux-gcc: fatal error: no input files compilation terminated. make[1]: [arch/m68k/emu/nfcon.mod.o] Error 1 (ignored) This doesn't matter much for normal builds, but it is annoying for builds started with "make -i" due to the large number of secondary errors. Those errors unnececessarily clog any error log and make it difficult to find the real errors in the build. Fix the problem by adding a new parameter '-n' to modpost. If this parameter is specified, modpost reports but ignores missing object files. With this patch, error output from above problem is (with make -i): m68k-linux-ld: cannot find fs/btrfs/ioctl.o: No such file or directory make[2]: [fs/btrfs/btrfs.o] Error 1 (ignored) ... fs/btrfs/btrfs.o: No such file or directory (ignored) Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michael Marek <mmarek@suse.cz> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-09-23 15:23:54 +09:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: replace abort() with exit(1) We have had no use of the coredump file for a long time. So just exit(1) and avoid coredumping. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-24 23:46:54 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: fix section mismatch check for vmlinux vmlinux does not contain relocation entries which is used by the section mismatch checks. Reported by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Use the individual objects as inputs to overcome this limitation. In modpost check the .o files and skip non-ELF files. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-02-26 15:33:52 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild, modpost: fix unexpected non-allocatable section when cross compiling The missing TO_NATIVE(sechdrs[i].sh_flags) was causing many unexpected non-allocatable section warnings when cross-compiling for an architecture with a different endianness. Fix endianness of all the fields in the ELF header and section headers, not just some of them so we are not hit by this anohter time. Signed-off-by: Anders Kaseorg <andersk@mit.edu> Reported-by: Sean MacLennan <smaclennan@pikatech.com> Tested-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-05-03 22:02:55 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: fix segfault in modpost Fix modpost segfault. Before: ------- ynezz@ntbk:~/linux-2.6.git$ scripts/mod/modpost vmlinux ath_pci.o Segmentation fault After: ------ ynezz@ntbk:~/linux-2.6.git$ scripts/mod/modpost vmlinux ath_pci.o FATAL: section header offset=815726848 in file 'ath_pci.o' is bigger then filesize=153968 Sam: This seems to warn for a binutils issue. Anyway modpost should not segfault. Signed-off-by: Petr Stetiar <ynezz@true.cz> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-08-27 12:15:07 +02:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: fix segfault in modpost Fix modpost segfault. Before: ------- ynezz@ntbk:~/linux-2.6.git$ scripts/mod/modpost vmlinux ath_pci.o Segmentation fault After: ------ ynezz@ntbk:~/linux-2.6.git$ scripts/mod/modpost vmlinux ath_pci.o FATAL: section header offset=815726848 in file 'ath_pci.o' is bigger then filesize=153968 Sam: This seems to warn for a binutils issue. Anyway modpost should not segfault. Signed-off-by: Petr Stetiar <ynezz@true.cz> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-08-27 12:15:07 +02:00
modpost: Update 64k section support for binutils 2.18.50 Binutils 2.18.50 made a backwards-incompatible change in the way it writes ELF objects with over 65280 sections, to improve conformance with the ELF specification and interoperability with other ELF tools. Specifically, it no longer adds 256 to section indices SHN_LORESERVE and higher to skip over the reserved range SHN_LORESERVE through SHN_HIRESERVE; those values are only considered special in the st_shndx field, and not in other places where section indices are stored. See: http://sourceware.org/bugzilla/show_bug.cgi?id=5900 http://groups.google.com/group/generic-abi/browse_thread/thread/e8bb63714b072e67/6c63738f12cc8a17 Signed-off-by: Anders Kaseorg <andersk@ksplice.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-05-19 16:55:27 -06:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
modpost: Update 64k section support for binutils 2.18.50 Binutils 2.18.50 made a backwards-incompatible change in the way it writes ELF objects with over 65280 sections, to improve conformance with the ELF specification and interoperability with other ELF tools. Specifically, it no longer adds 256 to section indices SHN_LORESERVE and higher to skip over the reserved range SHN_LORESERVE through SHN_HIRESERVE; those values are only considered special in the st_shndx field, and not in other places where section indices are stored. See: http://sourceware.org/bugzilla/show_bug.cgi?id=5900 http://groups.google.com/group/generic-abi/browse_thread/thread/e8bb63714b072e67/6c63738f12cc8a17 Signed-off-by: Anders Kaseorg <andersk@ksplice.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-05-19 16:55:27 -06:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
kbuild, modpost: fix unexpected non-allocatable section when cross compiling The missing TO_NATIVE(sechdrs[i].sh_flags) was causing many unexpected non-allocatable section warnings when cross-compiling for an architecture with a different endianness. Fix endianness of all the fields in the ELF header and section headers, not just some of them so we are not hit by this anohter time. Signed-off-by: Anders Kaseorg <andersk@mit.edu> Reported-by: Sean MacLennan <smaclennan@pikatech.com> Tested-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-05-03 22:02:55 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
modpost: NOBITS sections may point beyond the end of the file Impact: fix link failure on certain toolchains with specific configs Recent percpu change made x86_64 split .data.init section into three separate segments - data.init, percpu and data.init2. data.init2 gets .data.nosave and .bss.* and is followed by .notes segment. Depending on configuration both segments might contain no data, in which case the tool chain makes the section header to contain offset beyond the end of the file. modpost isn't too happy about it and fails build - as reported by Pawel Dziekonski: Building modules, stage 2. MODPOST 416 modules FATAL: vmlinux is truncated. sechdrs[i].sh_offset=10354688 > sizeof(*hrd)=64 make[1]: *** [__modpost] Error 1 Teach modpost that NOBITS section may point beyond the end of the file and that .modinfo can't be NOBITS. Reported-by: Pawel Dziekonski <dzieko@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-06 00:48:02 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: NOBITS sections may point beyond the end of the file Impact: fix link failure on certain toolchains with specific configs Recent percpu change made x86_64 split .data.init section into three separate segments - data.init, percpu and data.init2. data.init2 gets .data.nosave and .bss.* and is followed by .notes segment. Depending on configuration both segments might contain no data, in which case the tool chain makes the section header to contain offset beyond the end of the file. modpost isn't too happy about it and fails build - as reported by Pawel Dziekonski: Building modules, stage 2. MODPOST 416 modules FATAL: vmlinux is truncated. sechdrs[i].sh_offset=10354688 > sizeof(*hrd)=64 make[1]: *** [__modpost] Error 1 Teach modpost that NOBITS section may point beyond the end of the file and that .modinfo can't be NOBITS. Reported-by: Pawel Dziekonski <dzieko@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-06 00:48:02 +09:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: fix section mismatch check for vmlinux vmlinux does not contain relocation entries which is used by the section mismatch checks. Reported by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Use the individual objects as inputs to overcome this limitation. In modpost check the .o files and skip non-ELF files. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-02-26 15:33:52 +01:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
modpost: NOBITS sections may point beyond the end of the file Impact: fix link failure on certain toolchains with specific configs Recent percpu change made x86_64 split .data.init section into three separate segments - data.init, percpu and data.init2. data.init2 gets .data.nosave and .bss.* and is followed by .notes segment. Depending on configuration both segments might contain no data, in which case the tool chain makes the section header to contain offset beyond the end of the file. modpost isn't too happy about it and fails build - as reported by Pawel Dziekonski: Building modules, stage 2. MODPOST 416 modules FATAL: vmlinux is truncated. sechdrs[i].sh_offset=10354688 > sizeof(*hrd)=64 make[1]: *** [__modpost] Error 1 Teach modpost that NOBITS section may point beyond the end of the file and that .modinfo can't be NOBITS. Reported-by: Pawel Dziekonski <dzieko@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-06 00:48:02 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: warn when a moduled uses a symbol marked UNUSED We now have infrastructure in place to mark an EXPORTed symbol as unused. So the natural next step is to warn during buildtime when a module uses a symbol marked UNUSED. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 11:44:23 +02:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: warn when a moduled uses a symbol marked UNUSED We now have infrastructure in place to mark an EXPORTed symbol as unused. So the natural next step is to warn during buildtime when a module uses a symbol marked UNUSED. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 11:44:23 +02:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
modpost: Update 64k section support for binutils 2.18.50 Binutils 2.18.50 made a backwards-incompatible change in the way it writes ELF objects with over 65280 sections, to improve conformance with the ELF specification and interoperability with other ELF tools. Specifically, it no longer adds 256 to section indices SHN_LORESERVE and higher to skip over the reserved range SHN_LORESERVE through SHN_HIRESERVE; those values are only considered special in the st_shndx field, and not in other places where section indices are stored. See: http://sourceware.org/bugzilla/show_bug.cgi?id=5900 http://groups.google.com/group/generic-abi/browse_thread/thread/e8bb63714b072e67/6c63738f12cc8a17 Signed-off-by: Anders Kaseorg <andersk@ksplice.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-05-19 16:55:27 -06:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: use warn()/fatal() consistent in modpost modpost.c provides warn() and fatal() - so use them all over the place. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 16:57:26 +01:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
modpost: Update 64k section support for binutils 2.18.50 Binutils 2.18.50 made a backwards-incompatible change in the way it writes ELF objects with over 65280 sections, to improve conformance with the ELF specification and interoperability with other ELF tools. Specifically, it no longer adds 256 to section indices SHN_LORESERVE and higher to skip over the reserved range SHN_LORESERVE through SHN_HIRESERVE; those values are only considered special in the st_shndx field, and not in other places where section indices are stored. See: http://sourceware.org/bugzilla/show_bug.cgi?id=5900 http://groups.google.com/group/generic-abi/browse_thread/thread/e8bb63714b072e67/6c63738f12cc8a17 Signed-off-by: Anders Kaseorg <andersk@ksplice.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-05-19 16:55:27 -06:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
modpost: Update 64k section support for binutils 2.18.50 Binutils 2.18.50 made a backwards-incompatible change in the way it writes ELF objects with over 65280 sections, to improve conformance with the ELF specification and interoperability with other ELF tools. Specifically, it no longer adds 256 to section indices SHN_LORESERVE and higher to skip over the reserved range SHN_LORESERVE through SHN_HIRESERVE; those values are only considered special in the st_shndx field, and not in other places where section indices are stored. See: http://sourceware.org/bugzilla/show_bug.cgi?id=5900 http://groups.google.com/group/generic-abi/browse_thread/thread/e8bb63714b072e67/6c63738f12cc8a17 Signed-off-by: Anders Kaseorg <andersk@ksplice.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-05-19 16:55:27 -06:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
kbuild: fix section mismatch check for vmlinux vmlinux does not contain relocation entries which is used by the section mismatch checks. Reported by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Use the individual objects as inputs to overcome this limitation. In modpost check the .o files and skip non-ELF files. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-02-26 15:33:52 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: ignore powerpc specific symbols in modpost Kumar Gala <galak@kernel.crashing.org> wrote: We have a case in powerpc in which we want to link some library routines with all module objects. The routines are intended for handling out-of-line function call register save/restore so having them as EXPORT_SYMBOL() is counter productive (we do also need to link the same "library" code into the kernel). Without this patch a powerpc build would error out and fail to build modules with the added register save/restore module. There were two obvious solutions: 1) To link the .o file before the modpost stage 2) To ignore the symbols in modpost Option 1) was ruled out because we do not have any separate linking stage for single file modules. This patch implements option 2 - and do so only for powerpc. The symbols we ignore are all undefined symbols named: _restgpr_*, _savegpr_*, _rest32gpr_*, _save32gpr_* Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org>
2008-06-12 15:02:55 +02:00
modpost: remove symbol prefix support CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX was selected by BLACKFIN, METAG. They were removed by commit 4ba66a976072 ("arch: remove blackfin port"), commit bb6fb6dfcc17 ("metag: Remove arch/metag/"), respectively. No more architecture enables CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX, hence VMLINUX_SYMBOL_STR(foo) can be simplify replaced with "foo". Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
2018-05-09 16:23:45 +09:00
kbuild: ignore powerpc specific symbols in modpost Kumar Gala <galak@kernel.crashing.org> wrote: We have a case in powerpc in which we want to link some library routines with all module objects. The routines are intended for handling out-of-line function call register save/restore so having them as EXPORT_SYMBOL() is counter productive (we do also need to link the same "library" code into the kernel). Without this patch a powerpc build would error out and fail to build modules with the added register save/restore module. There were two obvious solutions: 1) To link the .o file before the modpost stage 2) To ignore the symbols in modpost Option 1) was ruled out because we do not have any separate linking stage for single file modules. This patch implements option 2 - and do so only for powerpc. The symbols we ignore are all undefined symbols named: _restgpr_*, _savegpr_*, _rest32gpr_*, _save32gpr_* Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org>
2008-06-12 15:02:55 +02:00
modpost: use strstarts() helper more widely Currently, strstarts() is only used in export_from_secname(). Use it more widely to improve the code readability. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:38 +09:00
kbuild: ignore powerpc specific symbols in modpost Kumar Gala <galak@kernel.crashing.org> wrote: We have a case in powerpc in which we want to link some library routines with all module objects. The routines are intended for handling out-of-line function call register save/restore so having them as EXPORT_SYMBOL() is counter productive (we do also need to link the same "library" code into the kernel). Without this patch a powerpc build would error out and fail to build modules with the added register save/restore module. There were two obvious solutions: 1) To link the .o file before the modpost stage 2) To ignore the symbols in modpost Option 1) was ruled out because we do not have any separate linking stage for single file modules. This patch implements option 2 - and do so only for powerpc. The symbols we ignore are all undefined symbols named: _restgpr_*, _savegpr_*, _rest32gpr_*, _save32gpr_* Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org>
2008-06-12 15:02:55 +02:00
powerpc: Fix module building for gcc 4.5 and 64 bit Gcc 4.5 is now generating out of line register save and restore in the function prefix and postfix when we use -Os. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-06-29 20:08:42 +00:00
modpost: use strstarts() helper more widely Currently, strstarts() is only used in export_from_secname(). Use it more widely to improve the code readability. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:38 +09:00
powerpc: Simplify module TOC handling PowerPC64 uses the symbol .TOC. much as other targets use _GLOBAL_OFFSET_TABLE_. It identifies the value of the GOT pointer (or in powerpc parlance, the TOC pointer). Global offset tables are generally local to an executable or shared library, or in the kernel, module. Thus it does not make sense for a module to resolve a relocation against .TOC. to the kernel's .TOC. value. A module has its own .TOC., and indeed the powerpc64 module relocation processing ignores the kernel value of .TOC. and instead calculates a module-local value. This patch removes code involved in exporting the kernel .TOC., tweaks modpost to ignore an undefined .TOC., and the module loader to twiddle the section symbol so that .TOC. isn't seen as undefined. Note that if the kernel was compiled with -msingle-pic-base then ELFv2 would not have function global entry code setting up r2. In that case the module call stubs would need to be modified to set up r2 using the kernel .TOC. value, requiring some of this code to be reinstated. mpe: Furthermore a change in binutils master (not yet released) causes the current way we handle the TOC to no longer work when building with MODVERSIONS=y and RELOCATABLE=n. The symptom is that modules can not be loaded due to there being no version found for TOC. Cc: stable@vger.kernel.org # 3.16+ Signed-off-by: Alan Modra <amodra@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-01-15 20:52:22 +11:00
powerpc: Fix module building for gcc 4.5 and 64 bit Gcc 4.5 is now generating out of line register save and restore in the function prefix and postfix when we use -Os. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-06-29 20:08:42 +00:00
kbuild: ignore powerpc specific symbols in modpost Kumar Gala <galak@kernel.crashing.org> wrote: We have a case in powerpc in which we want to link some library routines with all module objects. The routines are intended for handling out-of-line function call register save/restore so having them as EXPORT_SYMBOL() is counter productive (we do also need to link the same "library" code into the kernel). Without this patch a powerpc build would error out and fail to build modules with the added register save/restore module. There were two obvious solutions: 1) To link the .o file before the modpost stage 2) To ignore the symbols in modpost Option 1) was ruled out because we do not have any separate linking stage for single file modules. This patch implements option 2 - and do so only for powerpc. The symbols we ignore are all undefined symbols named: _restgpr_*, _savegpr_*, _rest32gpr_*, _save32gpr_* Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org>
2008-06-12 15:02:55 +02:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: Fix modpost's license checking V3 The commit f02e8a6 sorts symbols placing each of them in its own elf section. The sorting and merging into the canonical sections are done by the linker. Unfortunately modpost to generate Module.symvers file parses vmlinux (already linked) and all modules object files (which aren't linked yet). These aren't sanitized by the linker yet. That breaks modpost that can't detect license properly for modules. This patch makes modpost aware of the new exported symbols structure. Thanks to Arnaud Lacombe <lacombar@gmail.com> and Anders Kaseorg <andersk@ksplice.com> for providing useful suggestions about code. This work was supported by a hardware donation from the CE Linux Forum. Reported-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Alessio Igor Bogani <abogani@kernel.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-07-14 08:51:16 +02:00
kbuild: modpost warn if export version crc is missing This catches the failing ceph CRC on with: LD vmlinux.o MODPOST vmlinux.o WARNING: EXPORT symbol "ceph_monc_do_statfs" [vmlinux] version generation failed, symbol will not be versioned. When the modules referring to exported symbols are built, there is an existing warning for missing CRC, but it's not always the case such any such module will be built, and in any case it is useful to get a warning at the source. This gets a little verbose with CONFIG_DEBUG_SECTION_MISMATCH, producing a warning with each object linked, but I didn't think that warranted extra complexity to avoid. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-11-24 03:41:42 +11:00
modpost: Fix modpost's license checking V3 The commit f02e8a6 sorts symbols placing each of them in its own elf section. The sorting and merging into the canonical sections are done by the linker. Unfortunately modpost to generate Module.symvers file parses vmlinux (already linked) and all modules object files (which aren't linked yet). These aren't sanitized by the linker yet. That breaks modpost that can't detect license properly for modules. This patch makes modpost aware of the new exported symbols structure. Thanks to Arnaud Lacombe <lacombar@gmail.com> and Anders Kaseorg <andersk@ksplice.com> for providing useful suggestions about code. This work was supported by a hardware donation from the CE Linux Forum. Reported-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Alessio Igor Bogani <abogani@kernel.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-07-14 08:51:16 +02:00
modpost: Fix modpost license checking of vmlinux.o Commit f02e8a6596b7 ("module: Sort exported symbols") sorts symbols placing each of them in its own elf section. This sorting and merging into the canonical sections are done by the linker. Unfortunately modpost to generate Module.symvers file parses vmlinux.o (which is not linked yet) and all modules object files (which aren't linked yet). These aren't sanitized by the linker yet. That breaks modpost that can't detect license properly for modules. This patch makes modpost aware of the new exported symbols structure. [ This above is a slightly corrected version of the explanation of the problem, copied from commit 62a2635610db ("modpost: Fix modpost's license checking V3"). That commit fixed the problem for module object files, but not for vmlinux.o. This patch fixes modpost for vmlinux.o. ] Signed-off-by: Frank Rowand <frank.rowand@am.sony.com> Signed-off-by: Alessio Igor Bogani <abogani@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-09 17:59:03 -07:00
modpost: use strstarts() helper more widely Currently, strstarts() is only used in export_from_secname(). Use it more widely to improve the code readability. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:38 +09:00
modpost: Fix modpost's license checking V3 The commit f02e8a6 sorts symbols placing each of them in its own elf section. The sorting and merging into the canonical sections are done by the linker. Unfortunately modpost to generate Module.symvers file parses vmlinux (already linked) and all modules object files (which aren't linked yet). These aren't sanitized by the linker yet. That breaks modpost that can't detect license properly for modules. This patch makes modpost aware of the new exported symbols structure. Thanks to Arnaud Lacombe <lacombar@gmail.com> and Anders Kaseorg <andersk@ksplice.com> for providing useful suggestions about code. This work was supported by a hardware donation from the CE Linux Forum. Reported-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Alessio Igor Bogani <abogani@kernel.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-07-14 08:51:16 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
scripts/mod/modpost.c: handle non ABS crc symbols For some reason I managed to trick gcc into create CRC symbols that are not absolute anymore, but weak. Make modpost handle this case. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-12 15:08:38 -08:00
modpost: use strstarts() helper more widely Currently, strstarts() is only used in export_from_secname(). Use it more widely to improve the code readability. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:38 +09:00
kbuild: modpost warn if export version crc is missing This catches the failing ceph CRC on with: LD vmlinux.o MODPOST vmlinux.o WARNING: EXPORT symbol "ceph_monc_do_statfs" [vmlinux] version generation failed, symbol will not be versioned. When the modules referring to exported symbols are built, there is an existing warning for missing CRC, but it's not always the case such any such module will be built, and in any case it is useful to get a warning at the source. This gets a little verbose with CONFIG_DEBUG_SECTION_MISMATCH, producing a warning with each object linked, but I didn't think that warranted extra complexity to avoid. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-11-24 03:41:42 +11:00
scripts/mod/modpost.c: handle non ABS crc symbols For some reason I managed to trick gcc into create CRC symbols that are not absolute anymore, but weak. Make modpost handle this case. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-12 15:08:38 -08:00
kbuild: modversions: add infrastructure for emitting relative CRCs This add the kbuild infrastructure that will allow architectures to emit vmlinux symbol CRCs as 32-bit offsets to another location in the kernel where the actual value is stored. This works around problems with CRCs being mistaken for relocatable symbols on kernels that self relocate at runtime (i.e., powerpc with CONFIG_RELOCATABLE=y) For the kbuild side of things, this comes down to the following: - introducing a Kconfig symbol MODULE_REL_CRCS - adding a -R switch to genksyms to instruct it to emit the CRC symbols as references into the .rodata section - making modpost distinguish such references from absolute CRC symbols by the section index (SHN_ABS) - making kallsyms disregard non-absolute symbols with a __crc_ prefix Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-03 09:54:05 +00:00
modpost: remove symbol prefix support CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX was selected by BLACKFIN, METAG. They were removed by commit 4ba66a976072 ("arch: remove blackfin port"), commit bb6fb6dfcc17 ("metag: Remove arch/metag/"), respectively. No more architecture enables CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX, hence VMLINUX_SYMBOL_STR(foo) can be simplify replaced with "foo". Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
2018-05-09 16:23:45 +09:00
scripts/mod/modpost.c: handle non ABS crc symbols For some reason I managed to trick gcc into create CRC symbols that are not absolute anymore, but weak. Make modpost handle this case. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-12 15:08:38 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: use strstarts() helper more widely Currently, strstarts() is only used in export_from_secname(). Use it more widely to improve the code readability. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:38 +09:00
Kbuild, lto: Handle basic LTO in modpost - Don't warn about LTO marker symbols. modpost runs before the linker, so the module is not necessarily LTOed yet. - Don't complain about .gnu.lto* sections Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1391846481-31491-13-git-send-email-ak@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-02-08 09:01:17 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: ignore powerpc specific symbols in modpost Kumar Gala <galak@kernel.crashing.org> wrote: We have a case in powerpc in which we want to link some library routines with all module objects. The routines are intended for handling out-of-line function call register save/restore so having them as EXPORT_SYMBOL() is counter productive (we do also need to link the same "library" code into the kernel). Without this patch a powerpc build would error out and fail to build modules with the added register save/restore module. There were two obvious solutions: 1) To link the .o file before the modpost stage 2) To ignore the symbols in modpost Option 1) was ruled out because we do not have any separate linking stage for single file modules. This patch implements option 2 - and do so only for powerpc. The symbols we ignore are all undefined symbols named: _restgpr_*, _savegpr_*, _rest32gpr_*, _save32gpr_* Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org>
2008-06-12 15:02:55 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[SPARC]: Deal with glibc changing macro names in modpost.c GLIBC 2.3.4 and later changed the STT_REGISTER macro to STT_SPARC_REGISTER, so we need to cope with that somehow. Original patch from fabbione, reposted by Ben Collins. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-19 13:44:57 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[SPARC]: Deal with glibc changing macro names in modpost.c GLIBC 2.3.4 and later changed the STT_REGISTER macro to STT_SPARC_REGISTER, so we need to cope with that somehow. Original patch from fabbione, reposted by Ben Collins. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-19 13:44:57 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: kill trailing whitespace in modpost & friends Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-03 16:46:04 +01:00
scripts: modpost: check memory allocation results Fix missing error check for memory allocation functions in scripts/mod/modpost.c. Fixes kernel bugzilla #200319: https://bugzilla.kernel.org/show_bug.cgi?id=200319 Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Yuexing Wang <wangyxlandq@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-08-15 12:30:38 -07:00
kbuild: kill trailing whitespace in modpost & friends Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-03 16:46:04 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: kill trailing whitespace in modpost & friends Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-03 16:46:04 +01:00
kbuild: modpost warn if export version crc is missing This catches the failing ceph CRC on with: LD vmlinux.o MODPOST vmlinux.o WARNING: EXPORT symbol "ceph_monc_do_statfs" [vmlinux] version generation failed, symbol will not be versioned. When the modules referring to exported symbols are built, there is an existing warning for missing CRC, but it's not always the case such any such module will be built, and in any case it is useful to get a warning at the source. This gets a little verbose with CONFIG_DEBUG_SECTION_MISMATCH, producing a warning with each object linked, but I didn't think that warranted extra complexity to avoid. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-11-24 03:41:42 +11:00
modpost: remove symbol prefix support CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX was selected by BLACKFIN, METAG. They were removed by commit 4ba66a976072 ("arch: remove blackfin port"), commit bb6fb6dfcc17 ("metag: Remove arch/metag/"), respectively. No more architecture enables CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX, hence VMLINUX_SYMBOL_STR(foo) can be simplify replaced with "foo". Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
2018-05-09 16:23:45 +09:00
kbuild: modpost warn if export version crc is missing This catches the failing ceph CRC on with: LD vmlinux.o MODPOST vmlinux.o WARNING: EXPORT symbol "ceph_monc_do_statfs" [vmlinux] version generation failed, symbol will not be versioned. When the modules referring to exported symbols are built, there is an existing warning for missing CRC, but it's not always the case such any such module will be built, and in any case it is useful to get a warning at the source. This gets a little verbose with CONFIG_DEBUG_SECTION_MISMATCH, producing a warning with each object linked, but I didn't think that warranted extra complexity to avoid. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-11-24 03:41:42 +11:00
CONFIG_SYMBOL_PREFIX: cleanup. We have CONFIG_SYMBOL_PREFIX, which three archs define to the string "_". But Al Viro broke this in "consolidate cond_syscall and SYSCALL_ALIAS declarations" (in linux-next), and he's not the first to do so. Using CONFIG_SYMBOL_PREFIX is awkward, since we usually just want to prefix it so something. So various places define helpers which are defined to nothing if CONFIG_SYMBOL_PREFIX isn't set: 1) include/asm-generic/unistd.h defines __SYMBOL_PREFIX. 2) include/asm-generic/vmlinux.lds.h defines VMLINUX_SYMBOL(sym) 3) include/linux/export.h defines MODULE_SYMBOL_PREFIX. 4) include/linux/kernel.h defines SYMBOL_PREFIX (which differs from #7) 5) kernel/modsign_certificate.S defines ASM_SYMBOL(sym) 6) scripts/modpost.c defines MODULE_SYMBOL_PREFIX 7) scripts/Makefile.lib defines SYMBOL_PREFIX on the commandline if CONFIG_SYMBOL_PREFIX is set, so that we have a non-string version for pasting. (arch/h8300/include/asm/linkage.h defines SYMBOL_NAME(), too). Let's solve this properly: 1) No more generic prefix, just CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX. 2) Make linux/export.h usable from asm. 3) Define VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR(). 4) Make everyone use them. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Reviewed-by: James Hogan <james.hogan@imgtec.com> Tested-by: James Hogan <james.hogan@imgtec.com> (metag)
2013-03-15 15:04:17 +10:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: use strstarts() helper more widely Currently, strstarts() is only used in export_from_secname(). Use it more widely to improve the code readability. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:38 +09:00
modpost: remove symbol prefix support CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX was selected by BLACKFIN, METAG. They were removed by commit 4ba66a976072 ("arch: remove blackfin port"), commit bb6fb6dfcc17 ("metag: Remove arch/metag/"), respectively. No more architecture enables CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX, hence VMLINUX_SYMBOL_STR(foo) can be simplify replaced with "foo". Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
2018-05-09 16:23:45 +09:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: remove symbol prefix support CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX was selected by BLACKFIN, METAG. They were removed by commit 4ba66a976072 ("arch: remove blackfin port"), commit bb6fb6dfcc17 ("metag: Remove arch/metag/"), respectively. No more architecture enables CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX, hence VMLINUX_SYMBOL_STR(foo) can be simplify replaced with "foo". Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
2018-05-09 16:23:45 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: remove symbol prefix support CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX was selected by BLACKFIN, METAG. They were removed by commit 4ba66a976072 ("arch: remove blackfin port"), commit bb6fb6dfcc17 ("metag: Remove arch/metag/"), respectively. No more architecture enables CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX, hence VMLINUX_SYMBOL_STR(foo) can be simplify replaced with "foo". Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
2018-05-09 16:23:45 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: pass struct elf_info pointer to get_modinfo() get_(next_)modinfo takes a pointer and length pair of the .modinfo section. Instead, pass struct elf_info pointer to reduce the number of function arguments. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:37 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: pass struct elf_info pointer to get_modinfo() get_(next_)modinfo takes a pointer and length pair of the .modinfo section. Instead, pass struct elf_info pointer to reduce the number of function arguments. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:37 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: pass struct elf_info pointer to get_modinfo() get_(next_)modinfo takes a pointer and length pair of the .modinfo section. Instead, pass struct elf_info pointer to reduce the number of function arguments. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:37 +09:00
kbuild: check license compatibility when building modules Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher <agruen@suse.de> and Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 21:53:55 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: pass struct elf_info pointer to get_modinfo() get_(next_)modinfo takes a pointer and length pair of the .modinfo section. Instead, pass struct elf_info pointer to reduce the number of function arguments. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:37 +09:00
kbuild: check license compatibility when building modules Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher <agruen@suse.de> and Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 21:53:55 +02:00
modpost: pass struct elf_info pointer to get_modinfo() get_(next_)modinfo takes a pointer and length pair of the .modinfo section. Instead, pass struct elf_info pointer to reduce the number of function arguments. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:37 +09:00
kbuild: check license compatibility when building modules Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher <agruen@suse.de> and Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 21:53:55 +02:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: kill trailing whitespace in modpost & friends Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-03 16:46:04 +01:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
kbuild: kill trailing whitespace in modpost & friends Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-03 16:46:04 +01:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: kill trailing whitespace in modpost & friends Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-03 16:46:04 +01:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
kbuild: introduce a few helpers in modpost Introducing helpers to retreive symbol and section names cleaned up the code a bit. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 19:54:27 +01:00
kbuild: simplified warning report in modpost Refactor code so the warning report function does nothing else than reporting warnings. As a side effect some other code paths were cleaned up by this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 21:13:50 +01:00
kbuild/modpost: improve warnings if symbol is unknown If we cannot determine the symbol then print (unknown) to hint the reader that we failed to find the symbol. This happens with REL relocation records in arm object files. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-06 21:51:18 +01:00
kbuild: introduce a few helpers in modpost Introducing helpers to retreive symbol and section names cleaned up the code a bit. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 19:54:27 +01:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
modpost: expand pattern matching to support substring matches Currently the match() function supports a leading * to match any prefix and a trailing * to match any suffix. However there currently is not a combination of both that can be used to target matches of whole families of functions that share a common substring. Here we expand the *foo and foo* match to also support *foo* with the goal of targeting compiler generated symbol names that contain strings like ".constprop." and ".isra." Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-20 10:20:26 +09:30
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
Fix all -Wmissing-prototypes warnings in x86 defconfig Signed-off-by: Trevor Keith <tsrk@tsrk.net> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22 16:43:38 -07:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
modpost: expand pattern matching to support substring matches Currently the match() function supports a leading * to match any prefix and a trailing * to match any suffix. However there currently is not a combination of both that can be used to target matches of whole families of functions that share a common substring. Here we expand the *foo and foo* match to also support *foo* with the goal of targeting compiler generated symbol names that contain strings like ".constprop." and ".isra." Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-20 10:20:26 +09:30
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
modpost: expand pattern matching to support substring matches Currently the match() function supports a leading * to match any prefix and a trailing * to match any suffix. However there currently is not a combination of both that can be used to target matches of whole families of functions that share a common substring. Here we expand the *foo and foo* match to also support *foo* with the goal of targeting compiler generated symbol names that contain strings like ".constprop." and ".isra." Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-20 10:20:26 +09:30
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
modpost: reduce visibility of symbols and constify r/o arrays Internally used symbols of modpost don't need to be externally visible; make them static. Also constify the string arrays so they resist in the r/o section instead of being runtime writable. Those changes lead to a small size reduction as can be seen below: text data bss dec hex filename 51381 2640 12416 66437 10385 scripts/mod/modpost.old 51765 2224 12416 66405 10365 scripts/mod/modpost.new Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-08-27 20:28:53 +09:30
kbuild, modpost: fix unexpected non-allocatable warning with mips mips emit the following debug sections: .mdebug* and .pdr They were included in the check for non-allocatable section and caused modpost to warn. Manuel Lauss suggested to fix this by adding the relevant sections to the list of sections we do not check. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Reported-by: Manuel Lauss <mano@roarinelk.homelinux.net>
2009-05-04 13:05:26 +02:00
scripts/mod/modpost.c: permit '.cranges' secton for sh64 architecture. Need permit '.cranges' section for sh64 architecture, or modpost will report warning: LD init/built-in.o WARNING: init/built-in.o (.cranges): unexpected non-allocatable section. Did you forget to use "ax"/"aw" in a .S file? Note that for example <linux/init.h> contains section definitions for use in .S files. Signed-off-by: Chen Gang <gang.chen@asianux.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-08-20 15:33:19 +09:30
modpost: Put .zdebug* section on white list "as --compress-debug-sections" will generate compressed debug sections with section names ".zdebug*". This patch puts .zdebug* section on white list. Signed-off-by: H.J. Lu <hjl.tools@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-12-15 17:11:22 -08:00
mn10300: Remove the architecture Remove the MN10300 arch as the hardware is defunct. Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David Howells <dhowells@redhat.com> cc: Masahiro Yamada <yamada.masahiro@socionext.com> cc: linux-am33-list@redhat.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-08 09:48:46 +00:00
kbuild, modpost: fix unexpected non-allocatable warning with mips mips emit the following debug sections: .mdebug* and .pdr They were included in the check for non-allocatable section and caused modpost to warn. Manuel Lauss suggested to fix this by adding the relevant sections to the list of sections we do not check. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Reported-by: Manuel Lauss <mano@roarinelk.homelinux.net>
2009-05-04 13:05:26 +02:00
modpost: fix modpost warnings for xtensa Suppress warnings for two informational sections (.xt.lit and .xt.prop) used by the Xtensa architecture. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-09-17 05:44:38 +04:00
modpost: Ignore ARC specific non-alloc sections ARC relocatable object files contain one/more .gnu.linkonce.arcextmap.* sections (collated by kernel/vmlinux.lds into .arcextmap in final link). This section is used by debuggers to display the extension instructions and need-not be loaded by target (hence !SHF_ALLOC) The final kernel binary only needs .arcextmap entry in modpost's ignore list (section_white_list[]). However when building modules, modpost scans each object file individually, hence tripping on non-aggregated .gnu.linkonce.arcextmap.* entries as well. Thus need for the 2 entires ! Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-01-21 17:18:57 +10:30
scripts: [modpost] add new sections to white list In our ARC toolchain the default linker script includes special sections used for code and data located in special fast memory. To avoid warnings we add these sections i.e. .cmem* and .fmt_slot* to white list. Signed-off-by: Noam Camus <noamc@ezchip.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-10-26 19:51:46 +10:30
Kbuild, lto: Handle basic LTO in modpost - Don't warn about LTO marker symbols. modpost runs before the linker, so the module is not necessarily LTOed yet. - Don't complain about .gnu.lto* sections Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1391846481-31491-13-git-send-email-ak@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-02-08 09:01:17 +01:00
objtool, modules: Discard objtool annotation sections for modules The '__unreachable' and '__func_stack_frame_non_standard' sections are only used at compile time. They're discarded for vmlinux but they should also be discarded for modules. Since this is a recurring pattern, prefix the section names with ".discard.". It's a nice convention and vmlinux.lds.h already discards such sections. Also remove the 'a' (allocatable) flag from the __unreachable section since it doesn't make sense for a discarded section. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Jessica Yu <jeyu@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: d1091c7fa3d5 ("objtool: Improve detection of BUG() and other dead ends") Link: http://lkml.kernel.org/r/20170301180444.lhd53c5tibc4ns77@treble Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-01 12:04:44 -06:00
kbuild, modpost: fix unexpected non-allocatable warning with mips mips emit the following debug sections: .mdebug* and .pdr They were included in the check for non-allocatable section and caused modpost to warn. Manuel Lauss suggested to fix this by adding the relevant sections to the list of sections we do not check. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Reported-by: Manuel Lauss <mano@roarinelk.homelinux.net>
2009-05-04 13:05:26 +02:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
kbuild: warn about ld added unique sections If there is a mixture of specifying sections for code in gcc and assembler then if the assembler code do not add the "ax" flags the linker will see this as two different sections and generate unique sections for each. ld does so by adding a dot and a number. Teach modpost to warn if a section shows up that match this pattern - but do this only for non-debug sections. It will result in warnings like this: WARNING: vmlinux.o (.sched.text.1): unexpected section name. The (.[number]+) following section name are ld generated and not expected. Did you forget to use "ax"/"aw" in a .S file? Note that for example <linux/init.h> contains section definitions for use in .S files. All warnings seen with a defconfig build for: x86 (32+64bit) and sparc64 has been fixed (via respective maintainers). arm, powerpc (64 bit), s390 (32 bit), ia64, alpha, sh4 checked - no warnings seen with a defconfig build. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-28 20:13:13 +01:00
kbuild, modpost: Check the section flags, to catch missing "ax"/"aw" When you put .section ".foo" in an assembly file instead of .section "foo", "ax" , one of the possible symptoms is that modpost will see an ld-generated section name ".foo.1" in section_rel() or section_rela(). But this heuristic has two problems: it will miss a bad section that has no relocations, and it will incorrectly flag many gcc-generated sections as bad when compiling with -ffunction-sections -fdata-sections. On mips it fixes a lot of bogus warnings with gcc 4.4.0 lije this one: WARNING: crypto/cryptd.o (.text.T.349): unexpected section name. So instead of checking whether the section name matches a particular pattern, we directly check for a missing SHF_ALLOC in the section flags. Signed-off-by: Anders Kaseorg <andersk@mit.edu> Tested-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-04-23 16:49:33 -04:00
kbuild: warn about ld added unique sections If there is a mixture of specifying sections for code in gcc and assembler then if the assembler code do not add the "ax" flags the linker will see this as two different sections and generate unique sections for each. ld does so by adding a dot and a number. Teach modpost to warn if a section shows up that match this pattern - but do this only for non-debug sections. It will result in warnings like this: WARNING: vmlinux.o (.sched.text.1): unexpected section name. The (.[number]+) following section name are ld generated and not expected. Did you forget to use "ax"/"aw" in a .S file? Note that for example <linux/init.h> contains section definitions for use in .S files. All warnings seen with a defconfig build for: x86 (32+64bit) and sparc64 has been fixed (via respective maintainers). arm, powerpc (64 bit), s390 (32 bit), ia64, alpha, sh4 checked - no warnings seen with a defconfig build. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-28 20:13:13 +01:00
kbuild, modpost: Check the section flags, to catch missing "ax"/"aw" When you put .section ".foo" in an assembly file instead of .section "foo", "ax" , one of the possible symptoms is that modpost will see an ld-generated section name ".foo.1" in section_rel() or section_rela(). But this heuristic has two problems: it will miss a bad section that has no relocations, and it will incorrectly flag many gcc-generated sections as bad when compiling with -ffunction-sections -fdata-sections. On mips it fixes a lot of bogus warnings with gcc 4.4.0 lije this one: WARNING: crypto/cryptd.o (.text.T.349): unexpected section name. So instead of checking whether the section name matches a particular pattern, we directly check for a missing SHF_ALLOC in the section flags. Signed-off-by: Anders Kaseorg <andersk@mit.edu> Tested-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-04-23 16:49:33 -04:00
kbuild: warn about ld added unique sections If there is a mixture of specifying sections for code in gcc and assembler then if the assembler code do not add the "ax" flags the linker will see this as two different sections and generate unique sections for each. ld does so by adding a dot and a number. Teach modpost to warn if a section shows up that match this pattern - but do this only for non-debug sections. It will result in warnings like this: WARNING: vmlinux.o (.sched.text.1): unexpected section name. The (.[number]+) following section name are ld generated and not expected. Did you forget to use "ax"/"aw" in a .S file? Note that for example <linux/init.h> contains section definitions for use in .S files. All warnings seen with a defconfig build for: x86 (32+64bit) and sparc64 has been fixed (via respective maintainers). arm, powerpc (64 bit), s390 (32 bit), ia64, alpha, sh4 checked - no warnings seen with a defconfig build. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-28 20:13:13 +01:00
kbuild, modpost: Check the section flags, to catch missing "ax"/"aw" When you put .section ".foo" in an assembly file instead of .section "foo", "ax" , one of the possible symptoms is that modpost will see an ld-generated section name ".foo.1" in section_rel() or section_rela(). But this heuristic has two problems: it will miss a bad section that has no relocations, and it will incorrectly flag many gcc-generated sections as bad when compiling with -ffunction-sections -fdata-sections. On mips it fixes a lot of bogus warnings with gcc 4.4.0 lije this one: WARNING: crypto/cryptd.o (.text.T.349): unexpected section name. So instead of checking whether the section name matches a particular pattern, we directly check for a missing SHF_ALLOC in the section flags. Signed-off-by: Anders Kaseorg <andersk@mit.edu> Tested-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-04-23 16:49:33 -04:00
kbuild: trivial - use tabs for code indent where possible Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10 19:08:13 +09:00
kbuild: warn about ld added unique sections If there is a mixture of specifying sections for code in gcc and assembler then if the assembler code do not add the "ax" flags the linker will see this as two different sections and generate unique sections for each. ld does so by adding a dot and a number. Teach modpost to warn if a section shows up that match this pattern - but do this only for non-debug sections. It will result in warnings like this: WARNING: vmlinux.o (.sched.text.1): unexpected section name. The (.[number]+) following section name are ld generated and not expected. Did you forget to use "ax"/"aw" in a .S file? Note that for example <linux/init.h> contains section definitions for use in .S files. All warnings seen with a defconfig build for: x86 (32+64bit) and sparc64 has been fixed (via respective maintainers). arm, powerpc (64 bit), s390 (32 bit), ia64, alpha, sh4 checked - no warnings seen with a defconfig build. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-28 20:13:13 +01:00
kbuild, modpost: Check the section flags, to catch missing "ax"/"aw" When you put .section ".foo" in an assembly file instead of .section "foo", "ax" , one of the possible symptoms is that modpost will see an ld-generated section name ".foo.1" in section_rel() or section_rela(). But this heuristic has two problems: it will miss a bad section that has no relocations, and it will incorrectly flag many gcc-generated sections as bad when compiling with -ffunction-sections -fdata-sections. On mips it fixes a lot of bogus warnings with gcc 4.4.0 lije this one: WARNING: crypto/cryptd.o (.text.T.349): unexpected section name. So instead of checking whether the section name matches a particular pattern, we directly check for a missing SHF_ALLOC in the section flags. Signed-off-by: Anders Kaseorg <andersk@mit.edu> Tested-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-04-23 16:49:33 -04:00
kbuild: warn about ld added unique sections If there is a mixture of specifying sections for code in gcc and assembler then if the assembler code do not add the "ax" flags the linker will see this as two different sections and generate unique sections for each. ld does so by adding a dot and a number. Teach modpost to warn if a section shows up that match this pattern - but do this only for non-debug sections. It will result in warnings like this: WARNING: vmlinux.o (.sched.text.1): unexpected section name. The (.[number]+) following section name are ld generated and not expected. Did you forget to use "ax"/"aw" in a .S file? Note that for example <linux/init.h> contains section definitions for use in .S files. All warnings seen with a defconfig build for: x86 (32+64bit) and sparc64 has been fixed (via respective maintainers). arm, powerpc (64 bit), s390 (32 bit), ia64, alpha, sh4 checked - no warnings seen with a defconfig build. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-28 20:13:13 +01:00
Use separate sections for __dev/__cpu/__mem code/data Introducing separate sections for __dev* (HOTPLUG), __cpu* (HOTPLUG_CPU) and __mem* (MEMORY_HOTPLUG) allows us to do a much more reliable Section mismatch check in modpost. We are no longer dependent on the actual configuration of for example HOTPLUG. This has the effect that all users see much more Section mismatch warnings than before because they were almost all hidden when HOTPLUG was enabled. The advantage of this is that when building a piece of code then it is much more likely that the Section mismatch errors are spotted and the warnings will be felt less random of nature. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-20 20:07:28 +01:00
scripts: modpost: Remove numeric suffix pattern matching For several years, the pattern "foo$" has effectively been treated as equivalent to "foo" due to a bug in the (misnamed) helper number_prefix(). This hasn't been observed to cause any problems, so remove the broken $ functionality and change all foo$ patterns to foo. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-07-27 07:28:01 +09:30
Use separate sections for __dev/__cpu/__mem code/data Introducing separate sections for __dev* (HOTPLUG), __cpu* (HOTPLUG_CPU) and __mem* (MEMORY_HOTPLUG) allows us to do a much more reliable Section mismatch check in modpost. We are no longer dependent on the actual configuration of for example HOTPLUG. This has the effect that all users see much more Section mismatch warnings than before because they were almost all hidden when HOTPLUG was enabled. The advantage of this is that when building a piece of code then it is much more likely that the Section mismatch errors are spotted and the warnings will be felt less random of nature. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-20 20:07:28 +01:00
scripts: modpost: Remove numeric suffix pattern matching For several years, the pattern "foo$" has effectively been treated as equivalent to "foo" due to a bug in the (misnamed) helper number_prefix(). This hasn't been observed to cause any problems, so remove the broken $ functionality and change all foo$ patterns to foo. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-07-27 07:28:01 +09:30
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
Use separate sections for __dev/__cpu/__mem code/data Introducing separate sections for __dev* (HOTPLUG), __cpu* (HOTPLUG_CPU) and __mem* (MEMORY_HOTPLUG) allows us to do a much more reliable Section mismatch check in modpost. We are no longer dependent on the actual configuration of for example HOTPLUG. This has the effect that all users see much more Section mismatch warnings than before because they were almost all hidden when HOTPLUG was enabled. The advantage of this is that when building a piece of code then it is much more likely that the Section mismatch errors are spotted and the warnings will be felt less random of nature. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-20 20:07:28 +01:00
scripts: modpost: Remove numeric suffix pattern matching For several years, the pattern "foo$" has effectively been treated as equivalent to "foo" due to a bug in the (misnamed) helper number_prefix(). This hasn't been observed to cause any problems, so remove the broken $ functionality and change all foo$ patterns to foo. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-07-27 07:28:01 +09:30
Use separate sections for __dev/__cpu/__mem code/data Introducing separate sections for __dev* (HOTPLUG), __cpu* (HOTPLUG_CPU) and __mem* (MEMORY_HOTPLUG) allows us to do a much more reliable Section mismatch check in modpost. We are no longer dependent on the actual configuration of for example HOTPLUG. This has the effect that all users see much more Section mismatch warnings than before because they were almost all hidden when HOTPLUG was enabled. The advantage of this is that when building a piece of code then it is much more likely that the Section mismatch errors are spotted and the warnings will be felt less random of nature. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-20 20:07:28 +01:00
scripts: modpost: Remove numeric suffix pattern matching For several years, the pattern "foo$" has effectively been treated as equivalent to "foo" due to a bug in the (misnamed) helper number_prefix(). This hasn't been observed to cause any problems, so remove the broken $ functionality and change all foo$ patterns to foo. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-07-27 07:28:01 +09:30
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
scripts/modpost: check for bad references in .pci.fixups area Functions used for PCI fixups (like DECLARE_PCI_FIXUP_HEADER) are often marked __init. This is okay as long as nobody is using PCI hotplug. However if one does execute | echo 1 > /sys/bus/pci/rescan and we hit a module which is marked __init istead of __devinit then we go boom because the code is removed after the kernel booted. This patch help to see those section mismatches. Cc: Michal Marek <mmarek@suse.cz> Cc: linux-kbuild@vger.kernel.org Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-06-03 20:48:17 +02:00
scripts: modpost: Remove numeric suffix pattern matching For several years, the pattern "foo$" has effectively been treated as equivalent to "foo" due to a bug in the (misnamed) helper number_prefix(). This hasn't been observed to cause any problems, so remove the broken $ functionality and change all foo$ patterns to foo. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-07-27 07:28:01 +09:30
scripts/modpost: check for bad references in .pci.fixups area Functions used for PCI fixups (like DECLARE_PCI_FIXUP_HEADER) are often marked __init. This is okay as long as nobody is using PCI hotplug. However if one does execute | echo 1 > /sys/bus/pci/rescan and we hit a module which is marked __init istead of __devinit then we go boom because the code is removed after the kernel booted. This patch help to see those section mismatches. Cc: Michal Marek <mmarek@suse.cz> Cc: linux-kbuild@vger.kernel.org Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-06-03 20:48:17 +02:00
modpost: remove all traces of cpuinit/cpuexit sections Delete all audit rules that were checking how the .cpuXYZ related sections were inter-operating with other __init like sections, now that __cpuinit is gone. Update the linker script to not have any knowledge of .cpuinit sections. [lds.h update courtesy of Ralf Baechle <ralf@linux-mips.org>] Cc: Arnd Bergmann <arnd@arndb.de> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2013-06-19 19:30:48 -04:00
modpost: define ALL_XXX{IN,EX}IT_SECTIONS Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-29 12:04:26 +01:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
scripts: modpost: Remove numeric suffix pattern matching For several years, the pattern "foo$" has effectively been treated as equivalent to "foo" due to a bug in the (misnamed) helper number_prefix(). This hasn't been observed to cause any problems, so remove the broken $ functionality and change all foo$ patterns to foo. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-07-27 07:28:01 +09:30
modpost: add .sched.text and .kprobes.text to the TEXT_SECTIONS list. sched.text and .kprobes.text should behave exactly like .text with regards to how we should warn about referencing sections which might get discarded at runtime. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:42:52 +09:30
nmi_backtrace: generate one-line reports for idle cpus When doing an nmi backtrace of many cores, most of which are idle, the output is a little overwhelming and very uninformative. Suppress messages for cpus that are idling when they are interrupted and just emit one line, "NMI backtrace for N skipped: idling at pc 0xNNN". We do this by grouping all the cpuidle code together into a new .cpuidle.text section, and then checking the address of the interrupted PC to see if it lies within that section. This commit suitably tags x86 and tile idle routines, and only adds in the minimal framework for other architectures. Link: http://lkml.kernel.org/r/1472487169-14923-5-git-send-email-cmetcalf@mellanox.com Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Daniel Thompson <daniel.thompson@linaro.org> [arm] Tested-by: Petr Mladek <pmladek@suse.com> Cc: Aaron Tomlin <atomlin@redhat.com> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-07 17:02:55 -07:00
modpost: handle relocations mismatch in __ex_table. __ex_table is a simple table section where each entry is a pair of addresses - the first address is an address which can fault in kernel space, and the second address points to where the kernel should jump to when handling that fault. This is how copy_from_user() does not crash the kernel if userspace gives a borked pointer for example. If one of these addresses point to a non-executable section, something is seriously wrong since it either means the kernel will never fault from there or it will not be able to jump to there. As both cases are serious enough, we simply error out in these cases so the build fails and the developper has to fix the issue. In case the section is executable, but it isn't referenced in our list of authorized sections to point to from __ex_table, we just dump a warning giving more information about it. We do this in case the new section is executable but isn't supposed to be executed by the kernel. This happened with .altinstr_replacement, which is executable but is only used to copy instructions from - we should never have our instruction pointer pointing in .altinstr_replacement. Admitedly, a proper fix in that case would be to just set .altinstr_replacement NX, but we need to warn about future cases like this. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (added long casts)
2015-04-13 20:52:53 +09:30
modpost: work correctly with tile coldtext sections The tilegx and tilepro compilers use .coldtext for their unlikely executed text section name, so an __attribute__((cold)) function will (when compiled with higher optimization levels) land in the .coldtext section. Modify modpost to add .coldtext to the set of OTHER_TEXT_SECTIONS so we don't get warnings about referencing such a section in an __ex_table block, and then also modify arch/tile/lib/memcpy_user_64.c so that it uses plain ".coldtext" instead of ".coldtext.memcpy". The latter naming is a relic of an earlier use of -ffunction-sections, which we no longer use by default. Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au>
2015-07-08 17:07:41 -04:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
initconst adjustments - add .init.rodata to INIT_DATA, and group all initconst flavors together - move strings generated from __setup_param() into .init.rodata - add .*init.rodata to modpost's sets of init sections - make modpost warn about references between meminit and cpuinit as well as memexit and cpuexit sections (as CPU and memory hotplug are independently selectable features) Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-03-12 10:58:33 +00:00
Use separate sections for __dev/__cpu/__mem code/data Introducing separate sections for __dev* (HOTPLUG), __cpu* (HOTPLUG_CPU) and __mem* (MEMORY_HOTPLUG) allows us to do a much more reliable Section mismatch check in modpost. We are no longer dependent on the actual configuration of for example HOTPLUG. This has the effect that all users see much more Section mismatch warnings than before because they were almost all hidden when HOTPLUG was enabled. The advantage of this is that when building a piece of code then it is much more likely that the Section mismatch errors are spotted and the warnings will be felt less random of nature. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-20 20:07:28 +01:00
initconst adjustments - add .init.rodata to INIT_DATA, and group all initconst flavors together - move strings generated from __setup_param() into .init.rodata - add .*init.rodata to modpost's sets of init sections - make modpost warn about references between meminit and cpuinit as well as memexit and cpuexit sections (as CPU and memory hotplug are independently selectable features) Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-03-12 10:58:33 +00:00
Use separate sections for __dev/__cpu/__mem code/data Introducing separate sections for __dev* (HOTPLUG), __cpu* (HOTPLUG_CPU) and __mem* (MEMORY_HOTPLUG) allows us to do a much more reliable Section mismatch check in modpost. We are no longer dependent on the actual configuration of for example HOTPLUG. This has the effect that all users see much more Section mismatch warnings than before because they were almost all hidden when HOTPLUG was enabled. The advantage of this is that when building a piece of code then it is much more likely that the Section mismatch errors are spotted and the warnings will be felt less random of nature. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-20 20:07:28 +01:00
modpost: handle relocations mismatch in __ex_table. __ex_table is a simple table section where each entry is a pair of addresses - the first address is an address which can fault in kernel space, and the second address points to where the kernel should jump to when handling that fault. This is how copy_from_user() does not crash the kernel if userspace gives a borked pointer for example. If one of these addresses point to a non-executable section, something is seriously wrong since it either means the kernel will never fault from there or it will not be able to jump to there. As both cases are serious enough, we simply error out in these cases so the build fails and the developper has to fix the issue. In case the section is executable, but it isn't referenced in our list of authorized sections to point to from __ex_table, we just dump a warning giving more information about it. We do this in case the new section is executable but isn't supposed to be executed by the kernel. This happened with .altinstr_replacement, which is executable but is only used to copy instructions from - we should never have our instruction pointer pointing in .altinstr_replacement. Admitedly, a proper fix in that case would be to just set .altinstr_replacement NX, but we need to warn about future cases like this. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (added long casts)
2015-04-13 20:52:53 +09:30
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
modpost: reduce visibility of symbols and constify r/o arrays Internally used symbols of modpost don't need to be externally visible; make them static. Also constify the string arrays so they resist in the r/o section instead of being runtime writable. Those changes lead to a small size reduction as can be seen below: text data bss dec hex filename 51381 2640 12416 66437 10385 scripts/mod/modpost.old 51765 2224 12416 66405 10365 scripts/mod/modpost.new Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-08-27 20:28:53 +09:30
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
modpost: reduce visibility of symbols and constify r/o arrays Internally used symbols of modpost don't need to be externally visible; make them static. Also constify the string arrays so they resist in the r/o section instead of being runtime writable. Those changes lead to a small size reduction as can be seen below: text data bss dec hex filename 51381 2640 12416 66437 10385 scripts/mod/modpost.old 51765 2224 12416 66405 10365 scripts/mod/modpost.new Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-08-27 20:28:53 +09:30
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
modpost: reduce visibility of symbols and constify r/o arrays Internally used symbols of modpost don't need to be externally visible; make them static. Also constify the string arrays so they resist in the r/o section instead of being runtime writable. Those changes lead to a small size reduction as can be seen below: text data bss dec hex filename 51381 2640 12416 66437 10385 scripts/mod/modpost.old 51765 2224 12416 66405 10365 scripts/mod/modpost.new Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-08-27 20:28:53 +09:30
Use separate sections for __dev/__cpu/__mem code/data Introducing separate sections for __dev* (HOTPLUG), __cpu* (HOTPLUG_CPU) and __mem* (MEMORY_HOTPLUG) allows us to do a much more reliable Section mismatch check in modpost. We are no longer dependent on the actual configuration of for example HOTPLUG. This has the effect that all users see much more Section mismatch warnings than before because they were almost all hidden when HOTPLUG was enabled. The advantage of this is that when building a piece of code then it is much more likely that the Section mismatch errors are spotted and the warnings will be felt less random of nature. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-20 20:07:28 +01:00
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
modpost: don't emit section mismatch warnings for compiler optimizations Currently an allyesconfig build [gcc-4.9.1] can generate the following: WARNING: vmlinux.o(.text.unlikely+0x3864): Section mismatch in reference from the function cpumask_empty.constprop.3() to the variable .init.data:nmi_ipi_mask which comes from the cpumask_empty usage in arch/x86/kernel/nmi_selftest.c. Normally we would not see a symbol entry for cpumask_empty since it is: static inline bool cpumask_empty(const struct cpumask *srcp) however in this case, the variant of the symbol gets emitted when GCC does constant propagation optimization. Fix things up so that any locally optimized constprop variants don't warn when accessing variables that live in the __init sections. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-20 10:20:40 +09:30
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
modpost: reduce visibility of symbols and constify r/o arrays Internally used symbols of modpost don't need to be externally visible; make them static. Also constify the string arrays so they resist in the r/o section instead of being runtime writable. Those changes lead to a small size reduction as can be seen below: text data bss dec hex filename 51381 2640 12416 66437 10385 scripts/mod/modpost.old 51765 2224 12416 66405 10365 scripts/mod/modpost.new Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-08-27 20:28:53 +09:30
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
modpost: make symbol white list a per mismatch type variable Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 20:52:50 +01:00
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
modpost: reduce visibility of symbols and constify r/o arrays Internally used symbols of modpost don't need to be externally visible; make them static. Also constify the string arrays so they resist in the r/o section instead of being runtime writable. Those changes lead to a small size reduction as can be seen below: text data bss dec hex filename 51381 2640 12416 66437 10385 scripts/mod/modpost.old 51765 2224 12416 66405 10365 scripts/mod/modpost.new Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-08-27 20:28:53 +09:30
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
modpost: don't emit section mismatch warnings for compiler optimizations Currently an allyesconfig build [gcc-4.9.1] can generate the following: WARNING: vmlinux.o(.text.unlikely+0x3864): Section mismatch in reference from the function cpumask_empty.constprop.3() to the variable .init.data:nmi_ipi_mask which comes from the cpumask_empty usage in arch/x86/kernel/nmi_selftest.c. Normally we would not see a symbol entry for cpumask_empty since it is: static inline bool cpumask_empty(const struct cpumask *srcp) however in this case, the variant of the symbol gets emitted when GCC does constant propagation optimization. Fix things up so that any locally optimized constprop variants don't warn when accessing variables that live in the __init sections. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-20 10:20:40 +09:30
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: handle relocations mismatch in __ex_table. __ex_table is a simple table section where each entry is a pair of addresses - the first address is an address which can fault in kernel space, and the second address points to where the kernel should jump to when handling that fault. This is how copy_from_user() does not crash the kernel if userspace gives a borked pointer for example. If one of these addresses point to a non-executable section, something is seriously wrong since it either means the kernel will never fault from there or it will not be able to jump to there. As both cases are serious enough, we simply error out in these cases so the build fails and the developper has to fix the issue. In case the section is executable, but it isn't referenced in our list of authorized sections to point to from __ex_table, we just dump a warning giving more information about it. We do this in case the new section is executable but isn't supposed to be executed by the kernel. This happened with .altinstr_replacement, which is executable but is only used to copy instructions from - we should never have our instruction pointer pointing in .altinstr_replacement. Admitedly, a proper fix in that case would be to just set .altinstr_replacement NX, but we need to warn about future cases like this. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (added long casts)
2015-04-13 20:52:53 +09:30
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: document the use of struct section_check. struct section_check is used as a generic way of describing what relocations are authorized/forbidden when running modpost. This commit tries to describe how each field is used. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (Fixed "mist"ake)
2015-04-13 20:55:15 +09:30
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
modpost: add strict white-listing when referencing sections. Prints a warning when a section references a section outside a strict white-list. This will be useful to print a warning if __ex_table references a non-executable section. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:41:04 +09:30
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: make symbol white list a per mismatch type variable Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 20:52:50 +01:00
modpost: add handler function pointer to sectioncheck. This will be useful when we want to have special handlers which need to go through more hops to print useful information to the user. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:43:17 +09:30
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
modpost: handle relocations mismatch in __ex_table. __ex_table is a simple table section where each entry is a pair of addresses - the first address is an address which can fault in kernel space, and the second address points to where the kernel should jump to when handling that fault. This is how copy_from_user() does not crash the kernel if userspace gives a borked pointer for example. If one of these addresses point to a non-executable section, something is seriously wrong since it either means the kernel will never fault from there or it will not be able to jump to there. As both cases are serious enough, we simply error out in these cases so the build fails and the developper has to fix the issue. In case the section is executable, but it isn't referenced in our list of authorized sections to point to from __ex_table, we just dump a warning giving more information about it. We do this in case the new section is executable but isn't supposed to be executed by the kernel. This happened with .altinstr_replacement, which is executable but is only used to copy instructions from - we should never have our instruction pointer pointing in .altinstr_replacement. Admitedly, a proper fix in that case would be to just set .altinstr_replacement NX, but we need to warn about future cases like this. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (added long casts)
2015-04-13 20:52:53 +09:30
modpost: reduce visibility of symbols and constify r/o arrays Internally used symbols of modpost don't need to be externally visible; make them static. Also constify the string arrays so they resist in the r/o section instead of being runtime writable. Those changes lead to a small size reduction as can be seen below: text data bss dec hex filename 51381 2640 12416 66437 10385 scripts/mod/modpost.old 51765 2224 12416 66405 10365 scripts/mod/modpost.new Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-08-27 20:28:53 +09:30
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: add strict white-listing when referencing sections. Prints a warning when a section references a section outside a strict white-list. This will be useful to print a warning if __ex_table references a non-executable section. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:41:04 +09:30
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
modpost: make symbol white list a per mismatch type variable Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 20:52:50 +01:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: add strict white-listing when referencing sections. Prints a warning when a section references a section outside a strict white-list. This will be useful to print a warning if __ex_table references a non-executable section. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:41:04 +09:30
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
modpost: make symbol white list a per mismatch type variable Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 20:52:50 +01:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: don't allow *driver to reference .init.* Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 21:14:23 +01:00
modpost: add strict white-listing when referencing sections. Prints a warning when a section references a section outside a strict white-list. This will be useful to print a warning if __ex_table references a non-executable section. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:41:04 +09:30
modpost: don't allow *driver to reference .init.* Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 21:14:23 +01:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: add strict white-listing when referencing sections. Prints a warning when a section references a section outside a strict white-list. This will be useful to print a warning if __ex_table references a non-executable section. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:41:04 +09:30
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
modpost: make symbol white list a per mismatch type variable Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 20:52:50 +01:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: add strict white-listing when referencing sections. Prints a warning when a section references a section outside a strict white-list. This will be useful to print a warning if __ex_table references a non-executable section. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:41:04 +09:30
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
modpost: make symbol white list a per mismatch type variable Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 20:52:50 +01:00
Use separate sections for __dev/__cpu/__mem code/data Introducing separate sections for __dev* (HOTPLUG), __cpu* (HOTPLUG_CPU) and __mem* (MEMORY_HOTPLUG) allows us to do a much more reliable Section mismatch check in modpost. We are no longer dependent on the actual configuration of for example HOTPLUG. This has the effect that all users see much more Section mismatch warnings than before because they were almost all hidden when HOTPLUG was enabled. The advantage of this is that when building a piece of code then it is much more likely that the Section mismatch errors are spotted and the warnings will be felt less random of nature. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-20 20:07:28 +01:00
modpost: remove all traces of cpuinit/cpuexit sections Delete all audit rules that were checking how the .cpuXYZ related sections were inter-operating with other __init like sections, now that __cpuinit is gone. Update the linker script to not have any knowledge of .cpuinit sections. [lds.h update courtesy of Ralf Baechle <ralf@linux-mips.org>] Cc: Arnd Bergmann <arnd@arndb.de> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2013-06-19 19:30:48 -04:00
Use separate sections for __dev/__cpu/__mem code/data Introducing separate sections for __dev* (HOTPLUG), __cpu* (HOTPLUG_CPU) and __mem* (MEMORY_HOTPLUG) allows us to do a much more reliable Section mismatch check in modpost. We are no longer dependent on the actual configuration of for example HOTPLUG. This has the effect that all users see much more Section mismatch warnings than before because they were almost all hidden when HOTPLUG was enabled. The advantage of this is that when building a piece of code then it is much more likely that the Section mismatch errors are spotted and the warnings will be felt less random of nature. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-20 20:07:28 +01:00
modpost: define ALL_XXX{IN,EX}IT_SECTIONS Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-29 12:04:26 +01:00
modpost: add strict white-listing when referencing sections. Prints a warning when a section references a section outside a strict white-list. This will be useful to print a warning if __ex_table references a non-executable section. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:41:04 +09:30
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
modpost: make symbol white list a per mismatch type variable Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 20:52:50 +01:00
Use separate sections for __dev/__cpu/__mem code/data Introducing separate sections for __dev* (HOTPLUG), __cpu* (HOTPLUG_CPU) and __mem* (MEMORY_HOTPLUG) allows us to do a much more reliable Section mismatch check in modpost. We are no longer dependent on the actual configuration of for example HOTPLUG. This has the effect that all users see much more Section mismatch warnings than before because they were almost all hidden when HOTPLUG was enabled. The advantage of this is that when building a piece of code then it is much more likely that the Section mismatch errors are spotted and the warnings will be felt less random of nature. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-20 20:07:28 +01:00
modpost: remove all traces of cpuinit/cpuexit sections Delete all audit rules that were checking how the .cpuXYZ related sections were inter-operating with other __init like sections, now that __cpuinit is gone. Update the linker script to not have any knowledge of .cpuinit sections. [lds.h update courtesy of Ralf Baechle <ralf@linux-mips.org>] Cc: Arnd Bergmann <arnd@arndb.de> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2013-06-19 19:30:48 -04:00
Use separate sections for __dev/__cpu/__mem code/data Introducing separate sections for __dev* (HOTPLUG), __cpu* (HOTPLUG_CPU) and __mem* (MEMORY_HOTPLUG) allows us to do a much more reliable Section mismatch check in modpost. We are no longer dependent on the actual configuration of for example HOTPLUG. This has the effect that all users see much more Section mismatch warnings than before because they were almost all hidden when HOTPLUG was enabled. The advantage of this is that when building a piece of code then it is much more likely that the Section mismatch errors are spotted and the warnings will be felt less random of nature. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-20 20:07:28 +01:00
modpost: define ALL_XXX{IN,EX}IT_SECTIONS Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-29 12:04:26 +01:00
modpost: add strict white-listing when referencing sections. Prints a warning when a section references a section outside a strict white-list. This will be useful to print a warning if __ex_table references a non-executable section. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:41:04 +09:30
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
modpost: make symbol white list a per mismatch type variable Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 20:52:50 +01:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
Use separate sections for __dev/__cpu/__mem code/data Introducing separate sections for __dev* (HOTPLUG), __cpu* (HOTPLUG_CPU) and __mem* (MEMORY_HOTPLUG) allows us to do a much more reliable Section mismatch check in modpost. We are no longer dependent on the actual configuration of for example HOTPLUG. This has the effect that all users see much more Section mismatch warnings than before because they were almost all hidden when HOTPLUG was enabled. The advantage of this is that when building a piece of code then it is much more likely that the Section mismatch errors are spotted and the warnings will be felt less random of nature. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-20 20:07:28 +01:00
modpost: add strict white-listing when referencing sections. Prints a warning when a section references a section outside a strict white-list. This will be useful to print a warning if __ex_table references a non-executable section. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:41:04 +09:30
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
modpost: make symbol white list a per mismatch type variable Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 20:52:50 +01:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
Use separate sections for __dev/__cpu/__mem code/data Introducing separate sections for __dev* (HOTPLUG), __cpu* (HOTPLUG_CPU) and __mem* (MEMORY_HOTPLUG) allows us to do a much more reliable Section mismatch check in modpost. We are no longer dependent on the actual configuration of for example HOTPLUG. This has the effect that all users see much more Section mismatch warnings than before because they were almost all hidden when HOTPLUG was enabled. The advantage of this is that when building a piece of code then it is much more likely that the Section mismatch errors are spotted and the warnings will be felt less random of nature. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-20 20:07:28 +01:00
modpost: add strict white-listing when referencing sections. Prints a warning when a section references a section outside a strict white-list. This will be useful to print a warning if __ex_table references a non-executable section. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:41:04 +09:30
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
modpost: make symbol white list a per mismatch type variable Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 20:52:50 +01:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
scripts/modpost: check for bad references in .pci.fixups area Functions used for PCI fixups (like DECLARE_PCI_FIXUP_HEADER) are often marked __init. This is okay as long as nobody is using PCI hotplug. However if one does execute | echo 1 > /sys/bus/pci/rescan and we hit a module which is marked __init istead of __devinit then we go boom because the code is removed after the kernel booted. This patch help to see those section mismatches. Cc: Michal Marek <mmarek@suse.cz> Cc: linux-kbuild@vger.kernel.org Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-06-03 20:48:17 +02:00
modpost: add strict white-listing when referencing sections. Prints a warning when a section references a section outside a strict white-list. This will be useful to print a warning if __ex_table references a non-executable section. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:41:04 +09:30
scripts/modpost: check for bad references in .pci.fixups area Functions used for PCI fixups (like DECLARE_PCI_FIXUP_HEADER) are often marked __init. This is okay as long as nobody is using PCI hotplug. However if one does execute | echo 1 > /sys/bus/pci/rescan and we hit a module which is marked __init istead of __devinit then we go boom because the code is removed after the kernel booted. This patch help to see those section mismatches. Cc: Michal Marek <mmarek@suse.cz> Cc: linux-kbuild@vger.kernel.org Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-06-03 20:48:17 +02:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
modpost: add strict white-listing when referencing sections. Prints a warning when a section references a section outside a strict white-list. This will be useful to print a warning if __ex_table references a non-executable section. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:41:04 +09:30
modpost: make symbol white list a per mismatch type variable Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 20:52:50 +01:00
modpost: handle relocations mismatch in __ex_table. __ex_table is a simple table section where each entry is a pair of addresses - the first address is an address which can fault in kernel space, and the second address points to where the kernel should jump to when handling that fault. This is how copy_from_user() does not crash the kernel if userspace gives a borked pointer for example. If one of these addresses point to a non-executable section, something is seriously wrong since it either means the kernel will never fault from there or it will not be able to jump to there. As both cases are serious enough, we simply error out in these cases so the build fails and the developper has to fix the issue. In case the section is executable, but it isn't referenced in our list of authorized sections to point to from __ex_table, we just dump a warning giving more information about it. We do this in case the new section is executable but isn't supposed to be executed by the kernel. This happened with .altinstr_replacement, which is executable but is only used to copy instructions from - we should never have our instruction pointer pointing in .altinstr_replacement. Admitedly, a proper fix in that case would be to just set .altinstr_replacement NX, but we need to warn about future cases like this. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (added long casts)
2015-04-13 20:52:53 +09:30
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
modpost: pass around const struct sectioncheck * instead of enum mismatch This prepares having a per-check whitelist of symbol names. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:56:20 +01:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
modpost: do not try to match the SHT_NUL section. Trying to match the SHT_NUL section isn't useful and causes build failures on parisc and mn10300 since the addition of section strict white-listing and __ex_table sanitizing. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Reported-by: Guenter Roeck <linux@roeck-us.net> Fixes: 050e57fd5936 ("modpost: add strict white-listing when referencing....") Fixes: 52dc0595d540 ("modpost: handle relocations mismatch in __ex_table.") Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-16 13:16:41 +09:30
mn10300: Remove the architecture Remove the MN10300 arch as the hardware is defunct. Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David Howells <dhowells@redhat.com> cc: Masahiro Yamada <yamada.masahiro@socionext.com> cc: linux-am33-list@redhat.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-08 09:48:46 +00:00
modpost: do not try to match the SHT_NUL section. Trying to match the SHT_NUL section isn't useful and causes build failures on parisc and mn10300 since the addition of section strict white-listing and __ex_table sanitizing. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Reported-by: Guenter Roeck <linux@roeck-us.net> Fixes: 050e57fd5936 ("modpost: add strict white-listing when referencing....") Fixes: 52dc0595d540 ("modpost: handle relocations mismatch in __ex_table.") Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-16 13:16:41 +09:30
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
modpost: add strict white-listing when referencing sections. Prints a warning when a section references a section outside a strict white-list. This will be useful to print a warning if __ex_table references a non-executable section. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:41:04 +09:30
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
modpost: pass around const struct sectioncheck * instead of enum mismatch This prepares having a per-check whitelist of symbol names. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:56:20 +01:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
kbuild: introduce __init_refok/__initdata_refok to supress section mismatch warnings Throughout the kernel there are a few legitimite references to init or exit sections. Most of these are covered by the patterns included in modpost but a few nees special attention. To avoid hardcoding a lot of function names in modpost introduce a marker so relevant function/data can be marked. When modpost see a reference to a init/exit function from a function/data marked no warning will be issued. Idea from: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Andrew Morton <akpm@linux-foundation.org>
2007-05-17 20:14:48 +02:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
kbuild: kill false positives from section mismatch warnings for powerpc Building an allmodconfig kernel for ppc64 revealed a number of false positives - originally reported by Andrew Morton. This patch removes most if not all false positives for ppc64: Section .opd The .opd section contains function descriptors at least for ppc64. So ignore it for .init.text (was ignored for .exit.text). See description of function descriptors here: http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi-1.7.html Section .toc1 ppc64 places some static variables in .toc1 - ignore the. Section __bug_tabe BUG() and friends uses __bug_table. Ignore warnings from that section. Module parameters are placed in .data.rel for ppc64, for adjust pattern to match on section named .data* Tested with gcc: 3.4.0 and binutils 2.15.90.0.3 Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-05 00:16:26 +01:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
kbuild: kill trailing whitespace in modpost & friends Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-03 16:46:04 +01:00
param: silence .init.text references from param ops Ideally, we'd check that it was only the "set" function which was __init, and that the permissions were r/o. But that's a little hard. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Sam Ravnborg <sam@ravnborg.org> Tested-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
2010-08-11 23:04:16 -06:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
kbuild modpost - relax driver data name Relax driver data name from *_driver to *driver. This fixes the 26 section mismatch warnings in drivers/ide/pci. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-04-15 11:17:12 -07:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
kbuild: be more foregiving on init section naming In the whitelist function of modpost now use the same check to identify init_section as in other places of modpost. This has the effect that we now recognize sections named .init.text.19 as init sections and we no longer warn when we see these. At the same time make surrounding code readable by dropping use of temporary flags. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-07-25 21:52:31 +02:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
[PATCH] x86-64: Modpost whitelist reference to more symbols (pattern 3) o MODPOST generates warning on i386 if kernel is compiled with CONFIG_RELOCATABLE=y. WARNING: vmlinux - Section mismatch: reference to .init.text:__init_begin from .text between 'free_initmem' (at offset 0xc0114fd3) and 'do_test_wp_bit' WARNING: vmlinux - Section mismatch: reference to .init.text:_sinittext from .text between 'core_kernel_text' (at offset 0xc012aeae) and 'kernel_text_address' WARNING: vmlinux - Section mismatch: reference to .init.text:_einittext from .text between 'core_kernel_text' (at offset 0xc012aeb7) and 'kernel_text_address' WARNING: vmlinux - Section mismatch: reference to .init.text:_sinittext from .text between 'get_symbol_pos' (at offset 0xc0135776) and 'reset_iter' WARNING: vmlinux - Section mismatch: reference to .init.text:_einittext from .text between 'get_symbol_pos' (at offset 0xc013577d) and 'reset_iter' o These symbols (__init_begin, _sinittext, _einittext) belong to init section and generally represent a section boundary. These are special symbols in the sense that their size is zero and no memory is allocated for them in init section. Their addr and value are same. So even if we free the init section, it is ok to reference them. o Whitelist access to such select symbols in MODPOST. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org>
2007-01-11 01:52:44 +01:00
kbuild: fix comment in modpost.c There is some confusion on naming of the head section. Correct naming is .head.text. Fix comment so we use correct naming. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-04-26 11:17:42 +02:00
kbuild: fix warnings from .pci_fixup section Now where we do not pass vmlinux to modpost we started to see section mismatch warnings from .pci_fixup. Refactored code a little to include these in the whitelist again. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-02-26 17:49:06 +01:00
kbuild: consolidate section checks Move more checks from whitelist to the section check functions. Remove the redundent pci_fixup check. Renumber the patterns. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-06-03 00:41:22 +02:00
[PATCH] x86-64: Modpost whitelist reference to more symbols (pattern 3) o MODPOST generates warning on i386 if kernel is compiled with CONFIG_RELOCATABLE=y. WARNING: vmlinux - Section mismatch: reference to .init.text:__init_begin from .text between 'free_initmem' (at offset 0xc0114fd3) and 'do_test_wp_bit' WARNING: vmlinux - Section mismatch: reference to .init.text:_sinittext from .text between 'core_kernel_text' (at offset 0xc012aeae) and 'kernel_text_address' WARNING: vmlinux - Section mismatch: reference to .init.text:_einittext from .text between 'core_kernel_text' (at offset 0xc012aeb7) and 'kernel_text_address' WARNING: vmlinux - Section mismatch: reference to .init.text:_sinittext from .text between 'get_symbol_pos' (at offset 0xc0135776) and 'reset_iter' WARNING: vmlinux - Section mismatch: reference to .init.text:_einittext from .text between 'get_symbol_pos' (at offset 0xc013577d) and 'reset_iter' o These symbols (__init_begin, _sinittext, _einittext) belong to init section and generally represent a section boundary. These are special symbols in the sense that their size is zero and no memory is allocated for them in init section. Their addr and value are same. So even if we free the init section, it is ok to reference them. o Whitelist access to such select symbols in MODPOST. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org>
2007-01-11 01:52:44 +01:00
kbuild: fix warnings from .pci_fixup section Now where we do not pass vmlinux to modpost we started to see section mismatch warnings from .pci_fixup. Refactored code a little to include these in the whitelist again. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-02-26 17:49:06 +01:00
modpost: don't emit section mismatch warnings for compiler optimizations Currently an allyesconfig build [gcc-4.9.1] can generate the following: WARNING: vmlinux.o(.text.unlikely+0x3864): Section mismatch in reference from the function cpumask_empty.constprop.3() to the variable .init.data:nmi_ipi_mask which comes from the cpumask_empty usage in arch/x86/kernel/nmi_selftest.c. Normally we would not see a symbol entry for cpumask_empty since it is: static inline bool cpumask_empty(const struct cpumask *srcp) however in this case, the variant of the symbol gets emitted when GCC does constant propagation optimization. Fix things up so that any locally optimized constprop variants don't warn when accessing variables that live in the __init sections. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-20 10:20:40 +09:30
modpost: skip ELF local symbols during section mismatch check During development of a serial console driver with a gcc 8.2.0 toolchain for RISC-V, the following modpost warning appeared: ---- WARNING: vmlinux.o(.data+0x19b10): Section mismatch in reference from the variable .LANCHOR1 to the function .init.text:sifive_serial_console_setup() The variable .LANCHOR1 references the function __init sifive_serial_console_setup() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console ---- ".LANCHOR1" is an ELF local symbol, automatically created by gcc's section anchor generation code: https://gcc.gnu.org/onlinedocs/gccint/Anchored-Addresses.html https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/varasm.c;h=cd9591a45617464946dcf9a126dde277d9de9804;hb=9fb89fa845c1b2e0a18d85ada0b077c84508ab78#l7473 This was verified by compiling the kernel with -fno-section-anchors and observing that the ".LANCHOR1" ELF local symbol disappeared, and modpost no longer warned about the section mismatch. The serial driver code idiom triggering the warning is standard Linux serial driver practice that has a specific whitelist inclusion in modpost.c. I'm neither a modpost nor an ELF expert, but naively, it doesn't seem useful for modpost to report section mismatch warnings caused by ELF local symbols by default. Local symbols have compiler-generated names, and thus bypass modpost's whitelisting algorithm, which relies on the presence of a non-autogenerated symbol name. This increases the likelihood that false positive warnings will be generated (as in the above case). Thus, disable section mismatch reporting on ELF local symbols. The rationale here is similar to that of commit 2e3a10a1551d ("ARM: avoid ARM binutils leaking ELF local symbols") and of similar code already present in modpost.c: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/scripts/mod/modpost.c?h=v4.19-rc4&id=7876320f88802b22d4e2daf7eb027dd14175a0f8#n1256 This third version of the patch implements a suggestion from Masahiro Yamada <yamada.masahiro@socionext.com> to restructure the code as an additional pattern matching step inside secref_whitelist(), and further improves the patch description. Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-11-21 13:14:13 -08:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
modpost: make symbol white list a per mismatch type variable Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 20:52:50 +01:00
kbuild: simplified warning report in modpost Refactor code so the warning report function does nothing else than reporting warnings. As a side effect some other code paths were cleaned up by this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 21:13:50 +01:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
modpost: use strstarts() helper more widely Currently, strstarts() is only used in export_from_secname(). Use it more widely to improve the code readability. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:38 +09:00
kbuild: simplified warning report in modpost Refactor code so the warning report function does nothing else than reporting warnings. As a side effect some other code paths were cleaned up by this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 21:13:50 +01:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
param: silence .init.text references from param ops Ideally, we'd check that it was only the "set" function which was __init, and that the permissions were r/o. But that's a little hard. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Sam Ravnborg <sam@ravnborg.org> Tested-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
2010-08-11 23:04:16 -06:00
modpost: use strstarts() helper more widely Currently, strstarts() is only used in export_from_secname(). Use it more widely to improve the code readability. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:38 +09:00
param: silence .init.text references from param ops Ideally, we'd check that it was only the "set" function which was __init, and that the permissions were r/o. But that's a little hard. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Sam Ravnborg <sam@ravnborg.org> Tested-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
2010-08-11 23:04:16 -06:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
modpost: make symbol white list a per mismatch type variable Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 20:52:50 +01:00
kbuild: simplified warning report in modpost Refactor code so the warning report function does nothing else than reporting warnings. As a side effect some other code paths were cleaned up by this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 21:13:50 +01:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
kbuild: fix warnings from .pci_fixup section Now where we do not pass vmlinux to modpost we started to see section mismatch warnings from .pci_fixup. Refactored code a little to include these in the whitelist again. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-02-26 17:49:06 +01:00
kbuild: check section names consistently in modpost Now that match() is introduced use it consistently so we can share the section name definitions. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-20 10:43:27 +01:00
kbuild: simplified warning report in modpost Refactor code so the warning report function does nothing else than reporting warnings. As a side effect some other code paths were cleaned up by this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 21:13:50 +01:00
kbuild: fix warnings from .pci_fixup section Now where we do not pass vmlinux to modpost we started to see section mismatch warnings from .pci_fixup. Refactored code a little to include these in the whitelist again. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-02-26 17:49:06 +01:00
kbuild: consolidate section checks Move more checks from whitelist to the section check functions. Remove the redundent pci_fixup check. Renumber the patterns. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-06-03 00:41:22 +02:00
kbuild: simplified warning report in modpost Refactor code so the warning report function does nothing else than reporting warnings. As a side effect some other code paths were cleaned up by this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 21:13:50 +01:00
kbuild: fix warnings from .pci_fixup section Now where we do not pass vmlinux to modpost we started to see section mismatch warnings from .pci_fixup. Refactored code a little to include these in the whitelist again. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-02-26 17:49:06 +01:00
modpost: don't emit section mismatch warnings for compiler optimizations Currently an allyesconfig build [gcc-4.9.1] can generate the following: WARNING: vmlinux.o(.text.unlikely+0x3864): Section mismatch in reference from the function cpumask_empty.constprop.3() to the variable .init.data:nmi_ipi_mask which comes from the cpumask_empty usage in arch/x86/kernel/nmi_selftest.c. Normally we would not see a symbol entry for cpumask_empty since it is: static inline bool cpumask_empty(const struct cpumask *srcp) however in this case, the variant of the symbol gets emitted when GCC does constant propagation optimization. Fix things up so that any locally optimized constprop variants don't warn when accessing variables that live in the __init sections. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-20 10:20:40 +09:30
modpost: skip ELF local symbols during section mismatch check During development of a serial console driver with a gcc 8.2.0 toolchain for RISC-V, the following modpost warning appeared: ---- WARNING: vmlinux.o(.data+0x19b10): Section mismatch in reference from the variable .LANCHOR1 to the function .init.text:sifive_serial_console_setup() The variable .LANCHOR1 references the function __init sifive_serial_console_setup() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console ---- ".LANCHOR1" is an ELF local symbol, automatically created by gcc's section anchor generation code: https://gcc.gnu.org/onlinedocs/gccint/Anchored-Addresses.html https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/varasm.c;h=cd9591a45617464946dcf9a126dde277d9de9804;hb=9fb89fa845c1b2e0a18d85ada0b077c84508ab78#l7473 This was verified by compiling the kernel with -fno-section-anchors and observing that the ".LANCHOR1" ELF local symbol disappeared, and modpost no longer warned about the section mismatch. The serial driver code idiom triggering the warning is standard Linux serial driver practice that has a specific whitelist inclusion in modpost.c. I'm neither a modpost nor an ELF expert, but naively, it doesn't seem useful for modpost to report section mismatch warnings caused by ELF local symbols by default. Local symbols have compiler-generated names, and thus bypass modpost's whitelisting algorithm, which relies on the presence of a non-autogenerated symbol name. This increases the likelihood that false positive warnings will be generated (as in the above case). Thus, disable section mismatch reporting on ELF local symbols. The rationale here is similar to that of commit 2e3a10a1551d ("ARM: avoid ARM binutils leaking ELF local symbols") and of similar code already present in modpost.c: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/scripts/mod/modpost.c?h=v4.19-rc4&id=7876320f88802b22d4e2daf7eb027dd14175a0f8#n1256 This third version of the patch implements a suggestion from Masahiro Yamada <yamada.masahiro@socionext.com> to restructure the code as an additional pattern matching step inside secref_whitelist(), and further improves the patch description. Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-11-21 13:14:13 -08:00
kbuild: simplified warning report in modpost Refactor code so the warning report function does nothing else than reporting warnings. As a side effect some other code paths were cleaned up by this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 21:13:50 +01:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
modpost: validate symbol names also in find_elf_symbol If an ARM mapping symbol shares an address with a valid symbol, find_elf_symbol can currently return the mapping symbol instead, as the symbol is not validated. This can result in confusing warnings: WARNING: vmlinux.o(.text+0x18f4028): Section mismatch in reference from the function set_reset_devices() to the variable .init.text:$x.0 This change adds a call to is_valid_name to find_elf_symbol, similarly to how it's already used in find_elf_symbol2. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-10-23 15:15:35 -07:00
kbuild: include symbol names in section mismatch warnings Try to look up the symbol that is referenced. Include the symbol name in the warning message. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 11:53:35 +01:00
kbuild: try harder to find symbol names in modpost The relocation record sometimes contained an address which was not an exactly match for a symbol. Implment some simple logic such that if there is a symbol within 20 bytes of the address contained in the relocation record then print the name of this symbol. With this change modpost could find symbol names for the remaining .init.text symbols in my allyesconfig build for x86_64. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:04:34 +01:00
kbuild: include symbol names in section mismatch warnings Try to look up the symbol that is referenced. Include the symbol name in the warning message. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 11:53:35 +01:00
kbuild: try harder to find symbol names in modpost The relocation record sometimes contained an address which was not an exactly match for a symbol. Implment some simple logic such that if there is a symbol within 20 bytes of the address contained in the relocation record then print the name of this symbol. With this change modpost could find symbol names for the remaining .init.text symbols in my allyesconfig build for x86_64. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:04:34 +01:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
kbuild: include symbol names in section mismatch warnings Try to look up the symbol that is referenced. Include the symbol name in the warning message. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 11:53:35 +01:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
kbuild: include symbol names in section mismatch warnings Try to look up the symbol that is referenced. Include the symbol name in the warning message. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 11:53:35 +01:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
kbuild: include symbol names in section mismatch warnings Try to look up the symbol that is referenced. Include the symbol name in the warning message. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 11:53:35 +01:00
kbuild: make better section mismatch reports on i386 and mips On i386 and MIPS, warn_sec_mismatch() sometimes fails to show usefull symbol name. This is because empty 'refsym' due to 0 r_addend value. This patch is to adjust r_addend value, consulting with apply_relocate() routine in kernel code. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-22 18:27:39 +09:00
modpost: validate symbol names also in find_elf_symbol If an ARM mapping symbol shares an address with a valid symbol, find_elf_symbol can currently return the mapping symbol instead, as the symbol is not validated. This can result in confusing warnings: WARNING: vmlinux.o(.text+0x18f4028): Section mismatch in reference from the function set_reset_devices() to the variable .init.text:$x.0 This change adds a call to is_valid_name to find_elf_symbol, similarly to how it's already used in find_elf_symbol2. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-10-23 15:15:35 -07:00
kbuild: include symbol names in section mismatch warnings Try to look up the symbol that is referenced. Include the symbol name in the warning message. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 11:53:35 +01:00
kbuild: try harder to find symbol names in modpost The relocation record sometimes contained an address which was not an exactly match for a symbol. Implment some simple logic such that if there is a symbol within 20 bytes of the address contained in the relocation record then print the name of this symbol. With this change modpost could find symbol names for the remaining .init.text symbols in my allyesconfig build for x86_64. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:04:34 +01:00
kbuild: include symbol names in section mismatch warnings Try to look up the symbol that is referenced. Include the symbol name in the warning message. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 11:53:35 +01:00
kbuild: try harder to find symbol names in modpost The relocation record sometimes contained an address which was not an exactly match for a symbol. Implment some simple logic such that if there is a symbol within 20 bytes of the address contained in the relocation record then print the name of this symbol. With this change modpost could find symbol names for the remaining .init.text symbols in my allyesconfig build for x86_64. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:04:34 +01:00
kbuild: include symbol names in section mismatch warnings Try to look up the symbol that is referenced. Include the symbol name in the warning message. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-19 11:53:35 +01:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
kbuild: in the section mismatch check try harder to find symbols When searching for symbols the only check performed was if offset equals st_value. Adding an additional check to see if st_name points t a valid name made us sort out a few more false positives and let us report more correct names in warnings. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-05 12:02:46 +01:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
kbuild: use simpler section mismatch warnings in modpost The typical layout is now: WARNING: vmlinux.o(.text+0x372ec): Section mismatch: reference to .devinit.text:pci_scan_one_pbm in 'psycho_scan_bus' This is first step towards more readable warnings. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-22 21:44:32 +01:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
kbuild: use simpler section mismatch warnings in modpost The typical layout is now: WARNING: vmlinux.o(.text+0x372ec): Section mismatch: reference to .devinit.text:pci_scan_one_pbm in 'psycho_scan_bus' This is first step towards more readable warnings. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-22 21:44:32 +01:00
kbuild: kill trailing whitespace in modpost & friends Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-03 16:46:04 +01:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
[PATCH] remove modpost false warnings on ARM This patch stops "modpost" from issuing erroneous modpost warnings on ARM builds, which it's been doing since since maybe last summer. A canonical example would be driver method table entries: WARNING: <path> - Section mismatch: reference to .exit.text:<name>_remove from .data after '$d' (at offset 0x4) That "$d" symbol is generated by tools conformant with ARM ABI specs; in this case it's a symbol **in the middle of** a "<name>_driver" struct. The erroneous warnings appear to be issued because "modpost" whitelists references from "<name>_driver" data into init and exit sections ... but doesn't know should also include those "$d" mapping symbols, which are not otherwise associated with "<name>_driver" symbols. This patch prevents the modpost symbol lookup code from ever returning those mapping symbols, so it will return a whitelisted symbol instead. Then things work as expected. Now to revert various code-bloating "fixes" that got merged because of this modpost bug.... Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Roman Zippel <zippel@linux-m68k.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-20 13:58:16 -08:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
kbuild: use simpler section mismatch warnings in modpost The typical layout is now: WARNING: vmlinux.o(.text+0x372ec): Section mismatch: reference to .devinit.text:pci_scan_one_pbm in 'psycho_scan_bus' This is first step towards more readable warnings. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-22 21:44:32 +01:00
kbuild: in the section mismatch check try harder to find symbols When searching for symbols the only check performed was if offset equals st_value. Adding an additional check to see if st_name points t a valid name made us sort out a few more false positives and let us report more correct names in warnings. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-05 12:02:46 +01:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
kbuild: use simpler section mismatch warnings in modpost The typical layout is now: WARNING: vmlinux.o(.text+0x372ec): Section mismatch: reference to .devinit.text:pci_scan_one_pbm in 'psycho_scan_bus' This is first step towards more readable warnings. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-22 21:44:32 +01:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
scripts/mod/modpost.c: fix commentary accordingly to last changes The last commits 37ed19d5cce35a40d3913cf9aa208ce9f60db3d7 5003bab82d56754b27be01eef24495a02e00039d have introduced new behaviour of sec2annotation() method. However, the commentary inside the method was left as before. Let's fix it accordingly. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andrew Morton <akpm@linux-foundation.org> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-17 13:36:40 +03:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
scripts: modpost: check memory allocation results Fix missing error check for memory allocation functions in scripts/mod/modpost.c. Fixes kernel bugzilla #200319: https://bugzilla.kernel.org/show_bug.cgi?id=200319 Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Yuexing Wang <wangyxlandq@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-08-15 12:30:38 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
scripts/mod/modpost.c: fix commentary accordingly to last changes The last commits 37ed19d5cce35a40d3913cf9aa208ce9f60db3d7 5003bab82d56754b27be01eef24495a02e00039d have introduced new behaviour of sec2annotation() method. However, the commentary inside the method was left as before. Let's fix it accordingly. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andrew Morton <akpm@linux-foundation.org> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-17 13:36:40 +03:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
scripts: modpost: check memory allocation results Fix missing error check for memory allocation functions in scripts/mod/modpost.c. Fixes kernel bugzilla #200319: https://bugzilla.kernel.org/show_bug.cgi?id=200319 Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Yuexing Wang <wangyxlandq@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-08-15 12:30:38 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
kbuild/modpost: improve warnings if symbol is unknown If we cannot determine the symbol then print (unknown) to hint the reader that we failed to find the symbol. This happens with REL relocation records in arm object files. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-06 21:51:18 +01:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: fix trailing comma Consolidate locations that print a section whitelist into calls to print_section_list(). Fix print_section_list() so that it does not print a trailing comma & space: If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, becomes: If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2011-03-15 14:13:47 -07:00
modpost: factorize symbol pretty print in get_pretty_name(). Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:43:34 +09:30
kbuild: simplified warning report in modpost Refactor code so the warning report function does nothing else than reporting warnings. As a side effect some other code paths were cleaned up by this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 21:13:50 +01:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
kbuild: whitelist false section mismatch warnings In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-26 22:18:11 +01:00
kbuild: simplified warning report in modpost Refactor code so the warning report function does nothing else than reporting warnings. As a side effect some other code paths were cleaned up by this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 21:13:50 +01:00
modpost: pass around const struct sectioncheck * instead of enum mismatch This prepares having a per-check whitelist of symbol names. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:56:20 +01:00
kbuild: trivial - use tabs for code indent where possible Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10 19:08:13 +09:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild/modpost: improve warnings if symbol is unknown If we cannot determine the symbol then print (unknown) to hint the reader that we failed to find the symbol. This happens with REL relocation records in arm object files. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-06 21:51:18 +01:00
kbuild: print only total number of section mismatces found We have too many section mismatches detected at the moment. So silence modpost and prevent the option from being set in a typical allyesconfig build. Tell the user how to see all the deteils in the summary message from modpost. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-02 18:57:18 +01:00
modpost: factorize symbol pretty print in get_pretty_name(). Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:43:34 +09:30
kbuild/modpost: Use warn() for announcing section mismatches modpost: Use warn() for announcing section mismatches, for easy grepping for warnings in build logs. Also change an existing call from fprintf() to warn() while we're at it. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-05 11:38:49 +01:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: pass around const struct sectioncheck * instead of enum mismatch This prepares having a per-check whitelist of symbol names. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:56:20 +01:00
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
kbuild/modpost: improve warnings if symbol is unknown If we cannot determine the symbol then print (unknown) to hint the reader that we failed to find the symbol. This happens with REL relocation records in arm object files. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-06 21:51:18 +01:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
kbuild: add hint about __refdata to modpost As requested by Guennadi Liakhovetski Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-06 00:18:05 +02:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
modpost: fix trailing comma Consolidate locations that print a section whitelist into calls to print_section_list(). Fix print_section_list() so that it does not print a trailing comma & space: If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, becomes: If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2011-03-15 14:13:47 -07:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
kbuild: simplified warning report in modpost Refactor code so the warning report function does nothing else than reporting warnings. As a side effect some other code paths were cleaned up by this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 21:13:50 +01:00
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
modpost: fix trailing comma Consolidate locations that print a section whitelist into calls to print_section_list(). Fix print_section_list() so that it does not print a trailing comma & space: If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, becomes: If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2011-03-15 14:13:47 -07:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: fix reversed symbol name order in modpost XXXINIT_TO_INIT and XXXEXIT_TO_EXIT warnings use the reversed symbol name order in the suggestion, e.g.: WARNING: vmlinux.o(.meminit.text+0x36c): Section mismatch in reference from the function free_area_init_core() to the function .init.text:setup_usemap() The function __meminit free_area_init_core() references a function __init setup_usemap(). If free_area_init_core is only used by setup_usemap then annotate free_area_init_core with a matching annotation. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-17 14:12:10 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
fix "scripts/mod/modpost.c: fix memory leak" Fix error introduced by 37ed19d5cce35a40d3913cf9aa208ce9f60db3d7 ("scripts/mod/modpost.c: fix memory leak"). - don't kfree("") - fix one missed conversion Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Tested-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11 00:42:26 -07:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: give most mismatch constants a better name Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:35:47 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
scripts/mod/modpost.c: fix memory leak sec2annotation returns malloc'ed buffer directly to printf as an argument. Free this buffer after printing. Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Cc: Trevor Keith <tsrk@tsrk.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 17:20:24 -07:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: handle relocations mismatch in __ex_table. __ex_table is a simple table section where each entry is a pair of addresses - the first address is an address which can fault in kernel space, and the second address points to where the kernel should jump to when handling that fault. This is how copy_from_user() does not crash the kernel if userspace gives a borked pointer for example. If one of these addresses point to a non-executable section, something is seriously wrong since it either means the kernel will never fault from there or it will not be able to jump to there. As both cases are serious enough, we simply error out in these cases so the build fails and the developper has to fix the issue. In case the section is executable, but it isn't referenced in our list of authorized sections to point to from __ex_table, we just dump a warning giving more information about it. We do this in case the new section is executable but isn't supposed to be executed by the kernel. This happened with .altinstr_replacement, which is executable but is only used to copy instructions from - we should never have our instruction pointer pointing in .altinstr_replacement. Admitedly, a proper fix in that case would be to just set .altinstr_replacement NX, but we need to warn about future cases like this. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (added long casts)
2015-04-13 20:52:53 +09:30
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
kbuild: simplified warning report in modpost Refactor code so the warning report function does nothing else than reporting warnings. As a side effect some other code paths were cleaned up by this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 21:13:50 +01:00
modpost: add handler function pointer to sectioncheck. This will be useful when we want to have special handlers which need to go through more hops to print useful information to the user. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:43:17 +09:30
kbuild: simplified warning report in modpost Refactor code so the warning report function does nothing else than reporting warnings. As a side effect some other code paths were cleaned up by this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 21:13:50 +01:00
modpost: add handler function pointer to sectioncheck. This will be useful when we want to have special handlers which need to go through more hops to print useful information to the user. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:43:17 +09:30
kbuild: simplified warning report in modpost Refactor code so the warning report function does nothing else than reporting warnings. As a side effect some other code paths were cleaned up by this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 21:13:50 +01:00
modpost: add handler function pointer to sectioncheck. This will be useful when we want to have special handlers which need to go through more hops to print useful information to the user. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:43:17 +09:30
modpost: use strstarts() helper more widely Currently, strstarts() is only used in export_from_secname(). Use it more widely to improve the code readability. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:38 +09:00
modpost: add handler function pointer to sectioncheck. This will be useful when we want to have special handlers which need to go through more hops to print useful information to the user. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:43:17 +09:30
modpost: mismatch_handler: retrieve tosym information only when needed. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:43:45 +09:30
modpost: add handler function pointer to sectioncheck. This will be useful when we want to have special handlers which need to go through more hops to print useful information to the user. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:43:17 +09:30
modpost: handle relocations mismatch in __ex_table. __ex_table is a simple table section where each entry is a pair of addresses - the first address is an address which can fault in kernel space, and the second address points to where the kernel should jump to when handling that fault. This is how copy_from_user() does not crash the kernel if userspace gives a borked pointer for example. If one of these addresses point to a non-executable section, something is seriously wrong since it either means the kernel will never fault from there or it will not be able to jump to there. As both cases are serious enough, we simply error out in these cases so the build fails and the developper has to fix the issue. In case the section is executable, but it isn't referenced in our list of authorized sections to point to from __ex_table, we just dump a warning giving more information about it. We do this in case the new section is executable but isn't supposed to be executed by the kernel. This happened with .altinstr_replacement, which is executable but is only used to copy instructions from - we should never have our instruction pointer pointing in .altinstr_replacement. Admitedly, a proper fix in that case would be to just set .altinstr_replacement NX, but we need to warn about future cases like this. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (added long casts)
2015-04-13 20:52:53 +09:30
modpost: fix extable entry size calculation. As Guenter pointed out, we were never really calculating the extable entry size because the pointer arithmetic was simply wrong. We want to check we're handling the second relocation in __ex_table to infer an entry size, but we were using (void*) pointers instead of Elf_Rel[a]* ones. This fixes the problem by moving that check in the caller (since we can deal with different types of relocations) and add is_second_extable_reloc() to make the whole thing more readable. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Reported-by: Guenter Roeck <linux@roeck-us.net> CC: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-16 13:05:36 +09:30
modpost: handle relocations mismatch in __ex_table. __ex_table is a simple table section where each entry is a pair of addresses - the first address is an address which can fault in kernel space, and the second address points to where the kernel should jump to when handling that fault. This is how copy_from_user() does not crash the kernel if userspace gives a borked pointer for example. If one of these addresses point to a non-executable section, something is seriously wrong since it either means the kernel will never fault from there or it will not be able to jump to there. As both cases are serious enough, we simply error out in these cases so the build fails and the developper has to fix the issue. In case the section is executable, but it isn't referenced in our list of authorized sections to point to from __ex_table, we just dump a warning giving more information about it. We do this in case the new section is executable but isn't supposed to be executed by the kernel. This happened with .altinstr_replacement, which is executable but is only used to copy instructions from - we should never have our instruction pointer pointing in .altinstr_replacement. Admitedly, a proper fix in that case would be to just set .altinstr_replacement NX, but we need to warn about future cases like this. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (added long casts)
2015-04-13 20:52:53 +09:30
modpost: fix extable entry size calculation. As Guenter pointed out, we were never really calculating the extable entry size because the pointer arithmetic was simply wrong. We want to check we're handling the second relocation in __ex_table to infer an entry size, but we were using (void*) pointers instead of Elf_Rel[a]* ones. This fixes the problem by moving that check in the caller (since we can deal with different types of relocations) and add is_second_extable_reloc() to make the whole thing more readable. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Reported-by: Guenter Roeck <linux@roeck-us.net> CC: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-16 13:05:36 +09:30
modpost: handle relocations mismatch in __ex_table. __ex_table is a simple table section where each entry is a pair of addresses - the first address is an address which can fault in kernel space, and the second address points to where the kernel should jump to when handling that fault. This is how copy_from_user() does not crash the kernel if userspace gives a borked pointer for example. If one of these addresses point to a non-executable section, something is seriously wrong since it either means the kernel will never fault from there or it will not be able to jump to there. As both cases are serious enough, we simply error out in these cases so the build fails and the developper has to fix the issue. In case the section is executable, but it isn't referenced in our list of authorized sections to point to from __ex_table, we just dump a warning giving more information about it. We do this in case the new section is executable but isn't supposed to be executed by the kernel. This happened with .altinstr_replacement, which is executable but is only used to copy instructions from - we should never have our instruction pointer pointing in .altinstr_replacement. Admitedly, a proper fix in that case would be to just set .altinstr_replacement NX, but we need to warn about future cases like this. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (added long casts)
2015-04-13 20:52:53 +09:30
modpost: fix extable entry size calculation. As Guenter pointed out, we were never really calculating the extable entry size because the pointer arithmetic was simply wrong. We want to check we're handling the second relocation in __ex_table to infer an entry size, but we were using (void*) pointers instead of Elf_Rel[a]* ones. This fixes the problem by moving that check in the caller (since we can deal with different types of relocations) and add is_second_extable_reloc() to make the whole thing more readable. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Reported-by: Guenter Roeck <linux@roeck-us.net> CC: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-16 13:05:36 +09:30
modpost: handle relocations mismatch in __ex_table. __ex_table is a simple table section where each entry is a pair of addresses - the first address is an address which can fault in kernel space, and the second address points to where the kernel should jump to when handling that fault. This is how copy_from_user() does not crash the kernel if userspace gives a borked pointer for example. If one of these addresses point to a non-executable section, something is seriously wrong since it either means the kernel will never fault from there or it will not be able to jump to there. As both cases are serious enough, we simply error out in these cases so the build fails and the developper has to fix the issue. In case the section is executable, but it isn't referenced in our list of authorized sections to point to from __ex_table, we just dump a warning giving more information about it. We do this in case the new section is executable but isn't supposed to be executed by the kernel. This happened with .altinstr_replacement, which is executable but is only used to copy instructions from - we should never have our instruction pointer pointing in .altinstr_replacement. Admitedly, a proper fix in that case would be to just set .altinstr_replacement NX, but we need to warn about future cases like this. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (added long casts)
2015-04-13 20:52:53 +09:30
modpost: fix inverted logic in is_extable_fault_address(). As Guenter pointed out, we want to assert that extable_entry_size has been discovered and not the other way around. Moreover, this sanity check is only valid when we're not dealing with the first relocation in __ex_table, since we have not discovered the extable entry size at that point. This was leading to a divide-by-zero on some architectures and make the build fail. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Reported-by: Guenter Roeck <linux@roeck-us.net> CC: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-16 13:03:32 +09:30
modpost: handle relocations mismatch in __ex_table. __ex_table is a simple table section where each entry is a pair of addresses - the first address is an address which can fault in kernel space, and the second address points to where the kernel should jump to when handling that fault. This is how copy_from_user() does not crash the kernel if userspace gives a borked pointer for example. If one of these addresses point to a non-executable section, something is seriously wrong since it either means the kernel will never fault from there or it will not be able to jump to there. As both cases are serious enough, we simply error out in these cases so the build fails and the developper has to fix the issue. In case the section is executable, but it isn't referenced in our list of authorized sections to point to from __ex_table, we just dump a warning giving more information about it. We do this in case the new section is executable but isn't supposed to be executed by the kernel. This happened with .altinstr_replacement, which is executable but is only used to copy instructions from - we should never have our instruction pointer pointing in .altinstr_replacement. Admitedly, a proper fix in that case would be to just set .altinstr_replacement NX, but we need to warn about future cases like this. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (added long casts)
2015-04-13 20:52:53 +09:30
modpost: fix extable entry size calculation. As Guenter pointed out, we were never really calculating the extable entry size because the pointer arithmetic was simply wrong. We want to check we're handling the second relocation in __ex_table to infer an entry size, but we were using (void*) pointers instead of Elf_Rel[a]* ones. This fixes the problem by moving that check in the caller (since we can deal with different types of relocations) and add is_second_extable_reloc() to make the whole thing more readable. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Reported-by: Guenter Roeck <linux@roeck-us.net> CC: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-16 13:05:36 +09:30
modpost: handle relocations mismatch in __ex_table. __ex_table is a simple table section where each entry is a pair of addresses - the first address is an address which can fault in kernel space, and the second address points to where the kernel should jump to when handling that fault. This is how copy_from_user() does not crash the kernel if userspace gives a borked pointer for example. If one of these addresses point to a non-executable section, something is seriously wrong since it either means the kernel will never fault from there or it will not be able to jump to there. As both cases are serious enough, we simply error out in these cases so the build fails and the developper has to fix the issue. In case the section is executable, but it isn't referenced in our list of authorized sections to point to from __ex_table, we just dump a warning giving more information about it. We do this in case the new section is executable but isn't supposed to be executed by the kernel. This happened with .altinstr_replacement, which is executable but is only used to copy instructions from - we should never have our instruction pointer pointing in .altinstr_replacement. Admitedly, a proper fix in that case would be to just set .altinstr_replacement NX, but we need to warn about future cases like this. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (added long casts)
2015-04-13 20:52:53 +09:30
modpost: add handler function pointer to sectioncheck. This will be useful when we want to have special handlers which need to go through more hops to print useful information to the user. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:43:17 +09:30
modpost: Remove trailing semicolon The trailing semicolon is an empty statement that does no operation. Removing it since it doesn't do anything. Signed-off-by: Luis de Bethencourt <luisbg@kernel.org> Signed-off-by: Jessica Yu <jeyu@kernel.org>
2018-01-16 13:21:29 +00:00
modpost: add handler function pointer to sectioncheck. This will be useful when we want to have special handlers which need to go through more hops to print useful information to the user. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:43:17 +09:30
modpost: pass around const struct sectioncheck * instead of enum mismatch This prepares having a per-check whitelist of symbol names. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-01-30 16:56:20 +01:00
modpost: add handler function pointer to sectioncheck. This will be useful when we want to have special handlers which need to go through more hops to print useful information to the user. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-13 20:43:17 +09:30
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
kbuild: make better section mismatch reports on i386 and mips On i386 and MIPS, warn_sec_mismatch() sometimes fails to show usefull symbol name. This is because empty 'refsym' due to 0 r_addend value. This patch is to adjust r_addend value, consulting with apply_relocate() routine in kernel code. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-22 18:27:39 +09:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: make better section mismatch reports on i386 and mips On i386 and MIPS, warn_sec_mismatch() sometimes fails to show usefull symbol name. This is because empty 'refsym' due to 0 r_addend value. This patch is to adjust r_addend value, consulting with apply_relocate() routine in kernel code. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-22 18:27:39 +09:00
modpost: Update 64k section support for binutils 2.18.50 Binutils 2.18.50 made a backwards-incompatible change in the way it writes ELF objects with over 65280 sections, to improve conformance with the ELF specification and interoperability with other ELF tools. Specifically, it no longer adds 256 to section indices SHN_LORESERVE and higher to skip over the reserved range SHN_LORESERVE through SHN_HIRESERVE; those values are only considered special in the st_shndx field, and not in other places where section indices are stored. See: http://sourceware.org/bugzilla/show_bug.cgi?id=5900 http://groups.google.com/group/generic-abi/browse_thread/thread/e8bb63714b072e67/6c63738f12cc8a17 Signed-off-by: Anders Kaseorg <andersk@ksplice.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-05-19 16:55:27 -06:00
kbuild: make better section mismatch reports on i386 and mips On i386 and MIPS, warn_sec_mismatch() sometimes fails to show usefull symbol name. This is because empty 'refsym' due to 0 r_addend value. This patch is to adjust r_addend value, consulting with apply_relocate() routine in kernel code. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-22 18:27:39 +09:00
modpost: Fix address calculation in reloc_location() This patch fixes a segfault in modpost that is observed when the gold linker is used to link the input objects. The problem is that reloc_location (modpost.c) is computing the address of the relocation target incorrectly. Here, elf->hdr points to the beginning of the ELF file in memory, sechdr points to the relocation section header, section is the index of the section being relocated, and sechdrs[section].sh_offset would be the offset of that section, relative to the beginning of the ELF file. Adding elf->hdr + sechdrs[section].sh_offset gives you the address of the beginning of the section, and adding r->r_offset to that gives you the address of the location to be relocated. You do not need to subtract sechdrs[section].sh_addr from that -- the result of this is an address outside the file, and causes the segfault when addend_386_rel tries to dereference it. This bug is not observed when GNU ld is used to link the inputs. The object file ubuntu/omnibook/omnibook.o is the result of an ld -r of several other files. When GNU ld does an ld -r, it sets the vaddr field for each section to 0, but gold lays out the section addresses sequentially instead: Section Headers: [Nr] Name Type Addr Off Size ES Flg Lk Inf Al [ 0] NULL 00000000 000000 000000 00 0 0 0 [ 1] .text PROGBITS 00000000 000034 004794 00 AX 0 0 4 [ 2] .data PROGBITS 0000b9d0 0047c8 0009c0 00 WA 0 0 4 [ 3] .bss NOBITS 000162f8 005188 00013c 00 WA 0 0 4 [ 4] .rodata.str1.1 PROGBITS 00004f2d 0052c4 001b1a 01 AMS 0 0 1 [ 5] .init.text PROGBITS 00004794 006dde 0005fa 00 AX 0 0 1 [ 6] .exit.text PROGBITS 00004d8e 0073d8 00018a 00 AX 0 0 1 ... So the bug in the tool remained undiscovered because the section's vaddr always happened to be 0. Signed-off-by: Raymes Khoury <raymes@google.com> Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-12-10 02:09:23 -06:00
kbuild: make better section mismatch reports on i386 and mips On i386 and MIPS, warn_sec_mismatch() sometimes fails to show usefull symbol name. This is because empty 'refsym' due to 0 r_addend value. This patch is to adjust r_addend value, consulting with apply_relocate() routine in kernel code. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-22 18:27:39 +09:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: make better section mismatch reports on i386 and mips On i386 and MIPS, warn_sec_mismatch() sometimes fails to show usefull symbol name. This is because empty 'refsym' due to 0 r_addend value. This patch is to adjust r_addend value, consulting with apply_relocate() routine in kernel code. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-22 18:27:39 +09:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: make better section mismatch reports on i386 and mips On i386 and MIPS, warn_sec_mismatch() sometimes fails to show usefull symbol name. This is because empty 'refsym' due to 0 r_addend value. This patch is to adjust r_addend value, consulting with apply_relocate() routine in kernel code. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-22 18:27:39 +09:00
ARM: 7324/1: modpost: Fix section warnings for ARM for many compilers It turns out that many compilers don't show section warnings on ARM currently because handling for ARM_CALL relocs are missing from modpost.c. Based on commit c2e26114 ([ARM] 3205/1: Handle new EABI relocations when loading kernel modules) it seems that R_ARM_PC24, R_ARM_CALL and R_ARM_JUMP24 can be handled the same way. Note that at least Debian libc6-dev is missing defines for both R_ARM_CALL and R_ARM_JUMP24 in /usr/include/elf.h. So for now we need to define them in modpost.c if not defined. Acked-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Anders Kaseorg <andersk@ksplice.com> Cc: Greg KH <gregkh@linuxfoundation.org> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-14 21:58:56 +01:00
ARM: 7964/1: Detect section mismatches in thumb relocations Add processing for normally encountered thumb relocation types so that section mismatches will be detected. Comment from Rusty Russell follows: Happiest for this to go through an ARM tree, so: Signed-off-by: David A. Long <dave.long@linaro.org> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-14 22:41:18 +01:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: make better section mismatch reports on arm With this change we can find more symbols hereby improving the readability of the warnings. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-07-16 22:39:35 +02:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: trivial - use tabs for code indent where possible Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10 19:08:13 +09:00
kbuild: make better section mismatch reports on arm With this change we can find more symbols hereby improving the readability of the warnings. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-07-16 22:39:35 +02:00
ARM: 7324/1: modpost: Fix section warnings for ARM for many compilers It turns out that many compilers don't show section warnings on ARM currently because handling for ARM_CALL relocs are missing from modpost.c. Based on commit c2e26114 ([ARM] 3205/1: Handle new EABI relocations when loading kernel modules) it seems that R_ARM_PC24, R_ARM_CALL and R_ARM_JUMP24 can be handled the same way. Note that at least Debian libc6-dev is missing defines for both R_ARM_CALL and R_ARM_JUMP24 in /usr/include/elf.h. So for now we need to define them in modpost.c if not defined. Acked-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Anders Kaseorg <andersk@ksplice.com> Cc: Greg KH <gregkh@linuxfoundation.org> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-14 21:58:56 +01:00
ARM: 7964/1: Detect section mismatches in thumb relocations Add processing for normally encountered thumb relocation types so that section mismatches will be detected. Comment from Rusty Russell follows: Happiest for this to go through an ARM tree, so: Signed-off-by: David A. Long <dave.long@linaro.org> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-14 22:41:18 +01:00
kbuild: make better section mismatch reports on arm With this change we can find more symbols hereby improving the readability of the warnings. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-07-16 22:39:35 +02:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: trivial - use tabs for code indent where possible Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10 19:08:13 +09:00
kbuild: make better section mismatch reports on arm With this change we can find more symbols hereby improving the readability of the warnings. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-07-16 22:39:35 +02:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: make better section mismatch reports on i386 and mips On i386 and MIPS, warn_sec_mismatch() sometimes fails to show usefull symbol name. This is because empty 'refsym' due to 0 r_addend value. This patch is to adjust r_addend value, consulting with apply_relocate() routine in kernel code. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-22 18:27:39 +09:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: make better section mismatch reports on i386 and mips On i386 and MIPS, warn_sec_mismatch() sometimes fails to show usefull symbol name. This is because empty 'refsym' due to 0 r_addend value. This patch is to adjust r_addend value, consulting with apply_relocate() routine in kernel code. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-22 18:27:39 +09:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: trivial - use tabs for code indent where possible Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10 19:08:13 +09:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: introduce a few helpers in modpost Introducing helpers to retreive symbol and section names cleaned up the code a bit. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 19:54:27 +01:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: introduce a few helpers in modpost Introducing helpers to retreive symbol and section names cleaned up the code a bit. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 19:54:27 +01:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild, modpost: Check the section flags, to catch missing "ax"/"aw" When you put .section ".foo" in an assembly file instead of .section "foo", "ax" , one of the possible symptoms is that modpost will see an ld-generated section name ".foo.1" in section_rel() or section_rela(). But this heuristic has two problems: it will miss a bad section that has no relocations, and it will incorrectly flag many gcc-generated sections as bad when compiling with -ffunction-sections -fdata-sections. On mips it fixes a lot of bogus warnings with gcc 4.4.0 lije this one: WARNING: crypto/cryptd.o (.text.T.349): unexpected section name. So instead of checking whether the section name matches a particular pattern, we directly check for a missing SHF_ALLOC in the section flags. Signed-off-by: Anders Kaseorg <andersk@mit.edu> Tested-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-04-23 16:49:33 -04:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: warn about ld added unique sections If there is a mixture of specifying sections for code in gcc and assembler then if the assembler code do not add the "ax" flags the linker will see this as two different sections and generate unique sections for each. ld does so by adding a dot and a number. Teach modpost to warn if a section shows up that match this pattern - but do this only for non-debug sections. It will result in warnings like this: WARNING: vmlinux.o (.sched.text.1): unexpected section name. The (.[number]+) following section name are ld generated and not expected. Did you forget to use "ax"/"aw" in a .S file? Note that for example <linux/init.h> contains section definitions for use in .S files. All warnings seen with a defconfig build for: x86 (32+64bit) and sparc64 has been fixed (via respective maintainers). arm, powerpc (64 bit), s390 (32 bit), ia64, alpha, sh4 checked - no warnings seen with a defconfig build. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-28 20:13:13 +01:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: introduce a few helpers in modpost Introducing helpers to retreive symbol and section names cleaned up the code a bit. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 19:54:27 +01:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
modpost: fix extable entry size calculation. As Guenter pointed out, we were never really calculating the extable entry size because the pointer arithmetic was simply wrong. We want to check we're handling the second relocation in __ex_table to infer an entry size, but we were using (void*) pointers instead of Elf_Rel[a]* ones. This fixes the problem by moving that check in the caller (since we can deal with different types of relocations) and add is_second_extable_reloc() to make the whole thing more readable. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Reported-by: Guenter Roeck <linux@roeck-us.net> CC: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-16 13:05:36 +09:30
kbuild: simplified warning report in modpost Refactor code so the warning report function does nothing else than reporting warnings. As a side effect some other code paths were cleaned up by this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 21:13:50 +01:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: trivial - use tabs for code indent where possible Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10 19:08:13 +09:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: introduce a few helpers in modpost Introducing helpers to retreive symbol and section names cleaned up the code a bit. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 19:54:27 +01:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: introduce a few helpers in modpost Introducing helpers to retreive symbol and section names cleaned up the code a bit. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 19:54:27 +01:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild, modpost: Check the section flags, to catch missing "ax"/"aw" When you put .section ".foo" in an assembly file instead of .section "foo", "ax" , one of the possible symptoms is that modpost will see an ld-generated section name ".foo.1" in section_rel() or section_rela(). But this heuristic has two problems: it will miss a bad section that has no relocations, and it will incorrectly flag many gcc-generated sections as bad when compiling with -ffunction-sections -fdata-sections. On mips it fixes a lot of bogus warnings with gcc 4.4.0 lije this one: WARNING: crypto/cryptd.o (.text.T.349): unexpected section name. So instead of checking whether the section name matches a particular pattern, we directly check for a missing SHF_ALLOC in the section flags. Signed-off-by: Anders Kaseorg <andersk@mit.edu> Tested-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-04-23 16:49:33 -04:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: introduce a few helpers in modpost Introducing helpers to retreive symbol and section names cleaned up the code a bit. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 19:54:27 +01:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: introduce a few helpers in modpost Introducing helpers to retreive symbol and section names cleaned up the code a bit. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 19:54:27 +01:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
modpost: fix extable entry size calculation. As Guenter pointed out, we were never really calculating the extable entry size because the pointer arithmetic was simply wrong. We want to check we're handling the second relocation in __ex_table to infer an entry size, but we were using (void*) pointers instead of Elf_Rel[a]* ones. This fixes the problem by moving that check in the caller (since we can deal with different types of relocations) and add is_second_extable_reloc() to make the whole thing more readable. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Reported-by: Guenter Roeck <linux@roeck-us.net> CC: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-16 13:05:36 +09:30
kbuild: simplified warning report in modpost Refactor code so the warning report function does nothing else than reporting warnings. As a side effect some other code paths were cleaned up by this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-23 21:13:50 +01:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
tree-wide: fix comment/printk typos "gadget", "through", "command", "maintain", "maintain", "controller", "address", "between", "initiali[zs]e", "instead", "function", "select", "already", "equal", "access", "management", "hierarchy", "registration", "interest", "relative", "memory", "offset", "already", Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-11-01 15:38:34 -04:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
scripts/mod/modpost.c: fix spelling of module and happens Spelling fixes in scripts/mod/modpost.c Signed-off-by: Ben Dooks <ben-linux@fluff.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-29 22:33:44 -07:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
kbuild: trivial - use tabs for code indent where possible Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10 19:08:13 +09:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
kbuild: kill trailing whitespace in modpost & friends Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-03 16:46:04 +01:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
modpost: support objects with more than 64k sections This patch makes modpost able to process object files with more than 64k sections. Needed for huge kernel builds (allyesconfig, for example) with -ffunction-sections. 64k sections handling is covered, for example, by this document: "IA-64 gABI Proposal 74: Section Indexes" http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-29 01:47:53 +02:00
kbuild, modpost: Check the section flags, to catch missing "ax"/"aw" When you put .section ".foo" in an assembly file instead of .section "foo", "ax" , one of the possible symptoms is that modpost will see an ld-generated section name ".foo.1" in section_rel() or section_rela(). But this heuristic has two problems: it will miss a bad section that has no relocations, and it will incorrectly flag many gcc-generated sections as bad when compiling with -ffunction-sections -fdata-sections. On mips it fixes a lot of bogus warnings with gcc 4.4.0 lije this one: WARNING: crypto/cryptd.o (.text.T.349): unexpected section name. So instead of checking whether the section name matches a particular pattern, we directly check for a missing SHF_ALLOC in the section flags. Signed-off-by: Anders Kaseorg <andersk@mit.edu> Tested-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-04-23 16:49:33 -04:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
kbuild: code refactoring in modpost Split a too long function up in smaller bits to make prgram logic easier to follow. A few related changes done due to parameter changes. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-18 21:49:29 +01:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-02-17 22:42:02 +01:00
Kbuild, lto: Drop .number postfixes in modpost LTO turns all global symbols effectively into statics. This has the side effect that they all have a .NUMBER postfix to make them unique. In modpost drop this postfix because it confuses it. Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1391846481-31491-8-git-send-email-ak@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-02-08 09:01:12 +01:00
scripts: modpost: fix compilation warning The scripts/mod/modpost.c triggers the following warning: scripts/mod/modpost.c: In function ‘remove_dot’: scripts/mod/modpost.c:1710:10: warning: ignoring return value of ‘strtoul’, declared with attribute warn_unused_result [-Wunused-result] The remove_dot function that calls strtoul does not care about the numeric value of the string that is parsed but only looks for the end of the numeric sequence. As such, it's equivalent to just skip over all digits. Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-07-27 07:27:01 +09:30
Kbuild, lto: Drop .number postfixes in modpost LTO turns all global symbols effectively into statics. This has the side effect that they all have a .NUMBER postfix to make them unique. In modpost drop this postfix because it confuses it. Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1391846481-31491-8-git-send-email-ak@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-02-08 09:01:12 +01:00
scripts: modpost: fix compilation warning The scripts/mod/modpost.c triggers the following warning: scripts/mod/modpost.c: In function ‘remove_dot’: scripts/mod/modpost.c:1710:10: warning: ignoring return value of ‘strtoul’, declared with attribute warn_unused_result [-Wunused-result] The remove_dot function that calls strtoul does not care about the numeric value of the string that is parsed but only looks for the end of the numeric sequence. As such, it's equivalent to just skip over all digits. Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-07-27 07:27:01 +09:30
Kbuild, lto: Drop .number postfixes in modpost LTO turns all global symbols effectively into statics. This has the side effect that they all have a .NUMBER postfix to make them unique. In modpost drop this postfix because it confuses it. Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1391846481-31491-8-git-send-email-ak@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-02-08 09:01:12 +01:00
modpost: constify *modname function argument where possible Neither find_module() nor read_symbols() does change *modname. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:40 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: check license compatibility when building modules Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher <agruen@suse.de> and Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 21:53:55 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: fix section mismatch check for vmlinux vmlinux does not contain relocation entries which is used by the section mismatch checks. Reported by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Use the individual objects as inputs to overcome this limitation. In modpost check the .o files and skip non-ELF files. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-02-26 15:33:52 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: pass struct elf_info pointer to get_modinfo() get_(next_)modinfo takes a pointer and length pair of the .modinfo section. Instead, pass struct elf_info pointer to reduce the number of function arguments. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:37 +09:00
modpost: detect modules without a MODULE_LICENSE Partially revert commit 2fa365682943 ("kbuild: soften MODULE_LICENSE check") so that modpost detects modules that do not have a MODULE_LICENSE. Sam's commit also changed the fatal error to a warning, which I am leaving as is. This gives advance notice of when a module has no license and will taint the kernel if the module is loaded. This produces the following warnings on x86_64 allmodconfig: MODPOST 6520 modules WARNING: modpost: missing MODULE_LICENSE() in drivers/auxdisplay/img-ascii-lcd.o WARNING: modpost: missing MODULE_LICENSE() in drivers/gpio/gpio-ath79.o WARNING: modpost: missing MODULE_LICENSE() in drivers/gpio/gpio-iop.o WARNING: modpost: missing MODULE_LICENSE() in drivers/iio/accel/kxsd9-i2c.o WARNING: modpost: missing MODULE_LICENSE() in drivers/iio/adc/qcom-vadc-common.o WARNING: modpost: missing MODULE_LICENSE() in drivers/media/platform/mtk-vcodec/mtk-vcodec-common.o WARNING: modpost: missing MODULE_LICENSE() in drivers/media/platform/soc_camera/soc_scale_crop.o WARNING: modpost: missing MODULE_LICENSE() in drivers/mtd/nand/denali_pci.o WARNING: modpost: missing MODULE_LICENSE() in drivers/net/phy/cortina.o WARNING: modpost: missing MODULE_LICENSE() in drivers/pinctrl/pxa/pinctrl-pxa2xx.o WARNING: modpost: missing MODULE_LICENSE() in drivers/power/reset/zx-reboot.o WARNING: modpost: missing MODULE_LICENSE() in drivers/rpmsg/qcom_glink_native.o WARNING: modpost: missing MODULE_LICENSE() in drivers/staging/comedi/drivers/ni_atmio.o WARNING: modpost: missing MODULE_LICENSE() in net/9p/9pnet_xen.o WARNING: modpost: missing MODULE_LICENSE() in sound/soc/codecs/snd-soc-pcm512x-spi.o Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-11-12 11:21:45 -08:00
kbuild: soften MODULE_LICENSE check Only modules that has other MODULE_* content shall have the MODULE_LICENSE() tag. This fixes allmodconfig build on my box. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-04-26 21:07:26 +02:00
kbuild: check license compatibility when building modules Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher <agruen@suse.de> and Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 21:53:55 +02:00
modpost: pass struct elf_info pointer to get_modinfo() get_(next_)modinfo takes a pointer and length pair of the .modinfo section. Instead, pass struct elf_info pointer to reduce the number of function arguments. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:37 +09:00
kbuild: check license compatibility when building modules Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher <agruen@suse.de> and Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 21:53:55 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
Kbuild, lto: Drop .number postfixes in modpost LTO turns all global symbols effectively into statics. This has the side effect that they all have a .NUMBER postfix to make them unique. In modpost drop this postfix because it confuses it. Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1391846481-31491-8-git-send-email-ak@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-02-08 09:01:12 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: remove redundant is_vmlinux() test The second test of is_vmlinux() is redundant. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:39 +09:00
kbuild: introduce blacklisting in modpost Change the logic in modpost so we identify all the bad combinations of sections that refer to other sections. Compared to the previous approach we are much less dependent on knowledge of what additional sections the tool chain uses and thus we can keep the false positives low. The implmentation is changed to use a table based lookup and we now check all combinations in first pass so we no longer need separate passes for init and exit sections. Tested that the same warnings are generated for an allyesconfig build without CONFIG_HOTPLUG. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-01-13 22:21:31 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: pass struct elf_info pointer to get_modinfo() get_(next_)modinfo takes a pointer and length pair of the .modinfo section. Instead, pass struct elf_info pointer to reduce the number of function arguments. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:37 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
module: include other structures in module version check With CONFIG_MODVERSIONS, we version 'struct module' using a dummy export, but other things matter too: 1) 'struct modversion_info' determines the layout of the __versions section, 2) 'struct kernel_param' determines the layout of the __params section, 3) 'struct kernel_symbol' determines __ksymtab*. 4) 'struct marker' determines __markers. 5) 'struct tracepoint' determines __tracepoints. So we rename 'struct_module' to 'module_layout' and include these in the signature. Now it's general we can add others later on without confusion. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-03-31 13:05:34 -06:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
module: include other structures in module version check With CONFIG_MODVERSIONS, we version 'struct module' using a dummy export, but other things matter too: 1) 'struct modversion_info' determines the layout of the __versions section, 2) 'struct kernel_param' determines the layout of the __params section, 3) 'struct kernel_symbol' determines __ksymtab*. 4) 'struct marker' determines __markers. 5) 'struct tracepoint' determines __tracepoints. So we rename 'struct_module' to 'module_layout' and include these in the signature. Now it's general we can add others later on without confusion. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-03-31 13:05:34 -06:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: add -T option to read module names from file/stdin. Because there are too many modules in the world. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-04-04 17:37:38 +10:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: kill trailing whitespace in modpost & friends Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-03 16:46:04 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[PATCH] kbuild: fix buffer overflow in modpost Jiri Benc <jbenc@suse.cz> reported that modpost would stop with SIGABRT if used with long filepaths. The error looked like: > Building modules, stage 2. > MODPOST > *** glibc detected *** scripts/mod/modpost: realloc(): invalid next size: +0x0809f588 *** > [...] Fix this by allocating at least the required memory + SZ bytes each time. Before we sometimes ended up allocating too little memory resuting in the glibc detected bug above. Based on patch originally submitted by: Jiri Benc <jbenc@suse.cz> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-16 23:04:08 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[PATCH] kbuild: fix buffer overflow in modpost Jiri Benc <jbenc@suse.cz> reported that modpost would stop with SIGABRT if used with long filepaths. The error looked like: > Building modules, stage 2. > MODPOST > *** glibc detected *** scripts/mod/modpost: realloc(): invalid next size: +0x0809f588 *** > [...] Fix this by allocating at least the required memory + SZ bytes each time. Before we sometimes ended up allocating too little memory resuting in the glibc detected bug above. Based on patch originally submitted by: Jiri Benc <jbenc@suse.cz> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-16 23:04:08 -08:00
scripts: modpost: check memory allocation results Fix missing error check for memory allocation functions in scripts/mod/modpost.c. Fixes kernel bugzilla #200319: https://bugzilla.kernel.org/show_bug.cgi?id=200319 Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Yuexing Wang <wangyxlandq@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-08-15 12:30:38 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: warn when a moduled uses a symbol marked UNUSED We now have infrastructure in place to mark an EXPORTed symbol as unused. So the natural next step is to warn during buildtime when a module uses a symbol marked UNUSED. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 11:44:23 +02:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: warn when a moduled uses a symbol marked UNUSED We now have infrastructure in place to mark an EXPORTed symbol as unused. So the natural next step is to warn during buildtime when a module uses a symbol marked UNUSED. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 11:44:23 +02:00
modpost: move unresolved symbol checks to check_exports() This will fit better in check_exports() than add_versions(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-11-23 16:57:23 +09:00
kbuild: check license compatibility when building modules Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher <agruen@suse.de> and Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 21:53:55 +02:00
modpost: move unresolved symbol checks to check_exports() This will fit better in check_exports() than add_versions(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-11-23 16:57:23 +09:00
kbuild: check license compatibility when building modules Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher <agruen@suse.de> and Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 21:53:55 +02:00
kbuild: modpost build fix scripts/mod/modpost.c: In function `check_license': scripts/mod/modpost.c:1094: parse error before `const' scripts/mod/modpost.c:1095: `basename' undeclared (first use in this function) scripts/mod/modpost.c:1095: (Each undeclared identifier is reported only once scripts/mod/modpost.c:1095: for each function it appears in.) Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 20:45:06 -07:00
kbuild: check license compatibility when building modules Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher <agruen@suse.de> and Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 21:53:55 +02:00
modpost: move unresolved symbol checks to check_exports() This will fit better in check_exports() than add_versions(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-11-23 16:57:23 +09:00
kbuild: check license compatibility when building modules Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher <agruen@suse.de> and Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 21:53:55 +02:00
modpost: move unresolved symbol checks to check_exports() This will fit better in check_exports() than add_versions(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-11-23 16:57:23 +09:00
kbuild: modpost build fix scripts/mod/modpost.c: In function `check_license': scripts/mod/modpost.c:1094: parse error before `const' scripts/mod/modpost.c:1095: `basename' undeclared (first use in this function) scripts/mod/modpost.c:1095: (Each undeclared identifier is reported only once scripts/mod/modpost.c:1095: for each function it appears in.) Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 20:45:06 -07:00
kbuild: check license compatibility when building modules Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher <agruen@suse.de> and Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 21:53:55 +02:00
kbuild: warn when a moduled uses a symbol marked UNUSED We now have infrastructure in place to mark an EXPORTed symbol as unused. So the natural next step is to warn during buildtime when a module uses a symbol marked UNUSED. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 11:44:23 +02:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
modpost: move unresolved symbol checks to check_exports() This will fit better in check_exports() than add_versions(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-11-23 16:57:23 +09:00
kbuild: check license compatibility when building modules Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher <agruen@suse.de> and Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 21:53:55 +02:00
modpost: abort if module name is too long Module name has a limited length, but currently the build system allows the build finishing even if the module name is too long. CC /root/kprobe_example/abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz.mod.o /root/kprobe_example/abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz.mod.c:9:2: warning: initializer-string for array of chars is too long [enabled by default] .name = KBUILD_MODNAME, ^ but it's merely a warning. This patch adds the check of the module name length in modpost and stops the build properly. Signed-off-by: Wanlong Gao <wanlong.gao@gmail.com> Signed-off-by: Jessica Yu <jeyu@kernel.org>
2017-06-30 22:07:03 +08:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: Add build salt to the kernel and modules In Fedora, the debug information is packaged separately (foo-debuginfo) and can be installed separately. There's been a long standing issue where only one version of a debuginfo info package can be installed at a time. There's been an effort for Fedora for parallel debuginfo to rectify this problem. Part of the requirement to allow parallel debuginfo to work is that build ids are unique between builds. The existing upstream rpm implementation ensures this by re-calculating the build-id using the version and release as a seed. This doesn't work 100% for the kernel because of the vDSO which is its own binary and doesn't get updated when embedded. Fix this by adding some data in an ELF note for both the kernel and modules. The data is controlled via a Kconfig option so distributions can set it to an appropriate value to ensure uniqueness between builds. Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-05 17:49:37 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: Add build salt to the kernel and modules In Fedora, the debug information is packaged separately (foo-debuginfo) and can be installed separately. There's been a long standing issue where only one version of a debuginfo info package can be installed at a time. There's been an effort for Fedora for parallel debuginfo to rectify this problem. Part of the requirement to allow parallel debuginfo to work is that build ids are unique between builds. The existing upstream rpm implementation ensures this by re-calculating the build-id using the version and release as a seed. This doesn't work 100% for the kernel because of the vDSO which is its own binary and doesn't get updated when embedded. Fix this by adding some data in an ELF note for both the kernel and modules. The data is controlled via a Kconfig option so distributions can set it to an appropriate value to ensure uniqueness between builds. Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-05 17:49:37 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
module: Add module name to modinfo Accessing the mod structure (e.g. for mod->name) prior to having completed check_modstruct_version() can result in writing garbage to the error logs if the layout of the mod structure loaded from disk doesn't match the running kernel's mod structure layout. This kind of mismatch will become much more likely if a kernel is built with different randomization seed for the struct layout randomization plugin. Instead, add and use a new modinfo string for logging the module name. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Jessica Yu <jeyu@redhat.com>
2017-04-21 15:35:27 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
asmlinkage, module: Make ksymtab and kcrctab symbols and __this_module __visible Make the ksymtab symbols for EXPORT_SYMBOL visible. This prevents the LTO compiler from adding a .NUMBER prefix, which avoids various problems in later export processing. Cc: rusty@rustcorp.com.au Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-10-23 10:57:58 +10:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: use proper kernel style for autogenerated files If the kernel build process is creating files automatically, the least it can do is create them in a properly formatted manner. Sure, it's a minor issue, but being consistent is nice. Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Alessio Igor Bogani <abogani@kernel.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-04-25 11:10:15 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: use proper kernel style for autogenerated files If the kernel build process is creating files automatically, the least it can do is create them in a properly formatted manner. Sure, it's a minor issue, but being consistent is nice. Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Alessio Igor Bogani <abogani@kernel.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-04-25 11:10:15 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: use proper kernel style for autogenerated files If the kernel build process is creating files automatically, the least it can do is create them in a properly formatted manner. Sure, it's a minor issue, but being consistent is nice. Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Alessio Igor Bogani <abogani@kernel.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-04-25 11:10:15 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: use proper kernel style for autogenerated files If the kernel build process is creating files automatically, the least it can do is create them in a properly formatted manner. Sure, it's a minor issue, but being consistent is nice. Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Alessio Igor Bogani <abogani@kernel.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-04-25 11:10:15 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
module,bug: Add TAINT_OOT_MODULE flag for modules not built in-tree Use of the GPL or a compatible licence doesn't necessarily make the code any good. We already consider staging modules to be suspect, and this should also be true for out-of-tree modules which may receive very little review. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Reviewed-by: Dave Jones <davej@redhat.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (patched oops-tracing.txt)
2011-10-24 15:12:28 +02:00
module/retpoline: Warn about missing retpoline in module There's a risk that a kernel which has full retpoline mitigations becomes vulnerable when a module gets loaded that hasn't been compiled with the right compiler or the right option. To enable detection of that mismatch at module load time, add a module info string "retpoline" at build time when the module was compiled with retpoline support. This only covers compiled C source, but assembler source or prebuilt object files are not checked. If a retpoline enabled kernel detects a non retpoline protected module at load time, print a warning and report it in the sysfs vulnerability file. [ tglx: Massaged changelog ] Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: David Woodhouse <dwmw2@infradead.org> Cc: gregkh@linuxfoundation.org Cc: torvalds@linux-foundation.org Cc: jeyu@kernel.org Cc: arjan@linux.intel.com Link: https://lkml.kernel.org/r/20180125235028.31211-1-andi@firstfloor.org
2018-01-25 15:50:28 -08:00
x86, modpost: Replace last remnants of RETPOLINE with CONFIG_RETPOLINE Commit 4cd24de3a098 ("x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support") replaced the RETPOLINE define with CONFIG_RETPOLINE checks. Remove the remaining pieces. [ bp: Massage commit message. ] Fixes: 4cd24de3a098 ("x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support") Signed-off-by: WANG Chao <chao.wang@ucloud.cn> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Zhenzhong Duan <zhenzhong.duan@oracle.com> Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David Woodhouse <dwmw@amazon.co.uk> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Jessica Yu <jeyu@kernel.org> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Kees Cook <keescook@chromium.org> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Cc: Michal Marek <michal.lkml@markovi.net> Cc: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: linux-kbuild@vger.kernel.org Cc: srinivas.eeda@oracle.com Cc: stable <stable@vger.kernel.org> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/20181210163725.95977-1-chao.wang@ucloud.cn
2018-12-11 00:37:25 +08:00
module/retpoline: Warn about missing retpoline in module There's a risk that a kernel which has full retpoline mitigations becomes vulnerable when a module gets loaded that hasn't been compiled with the right compiler or the right option. To enable detection of that mismatch at module load time, add a module info string "retpoline" at build time when the module was compiled with retpoline support. This only covers compiled C source, but assembler source or prebuilt object files are not checked. If a retpoline enabled kernel detects a non retpoline protected module at load time, print a warning and report it in the sysfs vulnerability file. [ tglx: Massaged changelog ] Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: David Woodhouse <dwmw2@infradead.org> Cc: gregkh@linuxfoundation.org Cc: torvalds@linux-foundation.org Cc: jeyu@kernel.org Cc: arjan@linux.intel.com Link: https://lkml.kernel.org/r/20180125235028.31211-1-andi@firstfloor.org
2018-01-25 15:50:28 -08:00
Fix all -Wmissing-prototypes warnings in x86 defconfig Signed-off-by: Trevor Keith <tsrk@tsrk.net> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22 16:43:38 -07:00
Staging: add TAINT_CRAP flag to drivers/staging modules We need to add a flag for all code that is in the drivers/staging/ directory to prevent all other kernel developers from worrying about issues here, and to notify users that the drivers might not be as good as they are normally used to. Based on code from Andreas Gruenbacher and Jeff Mahoney to provide a TAINT flag for the support level of a kernel module in the Novell enterprise kernel release. This is the code that actually modifies the modules, adding the flag to any files in the drivers/staging directory. Cc: Andreas Gruenbacher <agruen@suse.de> Cc: Jeff Mahoney <jeffm@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-09-24 14:46:44 -07:00
modpost: use strstarts() helper more widely Currently, strstarts() is only used in export_from_secname(). Use it more widely to improve the code readability. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-09 18:50:38 +09:00
Staging: add TAINT_CRAP flag to drivers/staging modules We need to add a flag for all code that is in the drivers/staging/ directory to prevent all other kernel developers from worrying about issues here, and to notify users that the drivers might not be as good as they are normally used to. Based on code from Andreas Gruenbacher and Jeff Mahoney to provide a TAINT flag for the support level of a kernel module in the Novell enterprise kernel release. This is the code that actually modifies the modules, adding the flag to any files in the drivers/staging directory. Cc: Andreas Gruenbacher <agruen@suse.de> Cc: Jeff Mahoney <jeffm@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-09-24 14:46:44 -07:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
kbuild: fail kernel compilation in case of unresolved module symbols At stage 2 modpost utility is used to check modules. In case of unresolved symbols modpost only prints warning. IMHO it is a good idea to fail compilation process in case of unresolved symbols (at least in modules coming with kernel), since usually such errors are left unnoticed, but kernel modules are broken. - new option '-w' is added to modpost: if option is specified, modpost only warns about unresolved symbols - modpost is called with '-w' for external modules in Makefile.modpost Signed-off-by: Andrey Mirkin <amirkin@sw.ru> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-07 13:08:54 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: fail kernel compilation in case of unresolved module symbols At stage 2 modpost utility is used to check modules. In case of unresolved symbols modpost only prints warning. IMHO it is a good idea to fail compilation process in case of unresolved symbols (at least in modules coming with kernel), since usually such errors are left unnoticed, but kernel modules are broken. - new option '-w' is added to modpost: if option is specified, modpost only warns about unresolved symbols - modpost is called with '-w' for external modules in Makefile.modpost Signed-off-by: Andrey Mirkin <amirkin@sw.ru> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-07 13:08:54 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: move unresolved symbol checks to check_exports() This will fit better in check_exports() than add_versions(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-11-23 16:57:23 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: fail kernel compilation in case of unresolved module symbols At stage 2 modpost utility is used to check modules. In case of unresolved symbols modpost only prints warning. IMHO it is a good idea to fail compilation process in case of unresolved symbols (at least in modules coming with kernel), since usually such errors are left unnoticed, but kernel modules are broken. - new option '-w' is added to modpost: if option is specified, modpost only warns about unresolved symbols - modpost is called with '-w' for external modules in Makefile.modpost Signed-off-by: Andrey Mirkin <amirkin@sw.ru> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-07 13:08:54 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
remove __attribute_used__ Remove the deprecated __attribute_used__. [Introduce __section in a few places to silence checkpatch /sam] Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 22:16:20 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: use warn()/fatal() consistent in modpost modpost.c provides warn() and fatal() - so use them all over the place. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 16:57:26 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: abort if a module symbol is too long Module symbols have a limited length, but currently the build system allows the build finishing even if the driver code contains a too long symbol name, which eventually overflows the modversion_info[] item. The compiler may catch at compiling *.mod.c like CC xxx.mod.o xxx.mod.c:18:16: warning: initializer-string for array of chars is too long but it's merely a warning. This patch adds the check of the symbol length in modpost and stops the build properly. Currently MODULE_NAME_LEN is defined in modpost.c instead of referring to the definition in kernel header because including linux/module.h is messy and we must cover cross-compilation. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-08-08 15:16:20 +09:30
modpost: remove symbol prefix support CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX was selected by BLACKFIN, METAG. They were removed by commit 4ba66a976072 ("arch: remove blackfin port"), commit bb6fb6dfcc17 ("metag: Remove arch/metag/"), respectively. No more architecture enables CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX, hence VMLINUX_SYMBOL_STR(foo) can be simplify replaced with "foo". Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
2018-05-09 16:23:45 +09:00
module: fix symbol versioning with symbol prefixes Fix symbol versioning on architectures with symbol prefixes. Although the build was free from warnings the actual modules still wouldn't load as the ____versions table contained unprefixed symbol names, which were being compared against the prefixed symbol names when checking the symbol versions. This is fixed by modifying modpost to add the symbol prefix to the ____versions table it outputs (Modules.symvers still contains unprefixed symbol names). The check_modstruct_version() function is also fixed as it checks the version of the unprefixed "module_layout" symbol which would no longer work. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Michal Marek <mmarek@suse.cz> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jonathan Kliegman <kliegs@chromium.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (use VMLINUX_SYMBOL_STR)
2013-03-18 19:38:56 +10:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: fail kernel compilation in case of unresolved module symbols At stage 2 modpost utility is used to check modules. In case of unresolved symbols modpost only prints warning. IMHO it is a good idea to fail compilation process in case of unresolved symbols (at least in modules coming with kernel), since usually such errors are left unnoticed, but kernel modules are broken. - new option '-w' is added to modpost: if option is specified, modpost only warns about unresolved symbols - modpost is called with '-w' for external modules in Makefile.modpost Signed-off-by: Andrey Mirkin <amirkin@sw.ru> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-07 13:08:54 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: refactor seen flag clearing in add_depends() You do not need to iterate over all modules for resetting ->seen flag because add_depends() is only interested in modules that export symbols referenced from the given 'mod'. This also avoids shadowing the 'modules' parameter of add_depends(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-11-23 16:57:21 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: refactor seen flag clearing in add_depends() You do not need to iterate over all modules for resetting ->seen flag because add_depends() is only interested in modules that export symbols referenced from the given 'mod'. This also avoids shadowing the 'modules' parameter of add_depends(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-11-23 16:57:21 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
remove __attribute_used__ Remove the deprecated __attribute_used__. [Introduce __section in a few places to silence checkpatch /sam] Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 22:16:20 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: fix segmentation fault in modpost If modpost was called manually with filenames without '/' then modpost would segfault. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-02-26 19:46:52 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: fix segmentation fault in modpost If modpost was called manually with filenames without '/' then modpost would segfault. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-02-26 19:46:52 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: fix segv in modpost Parsing an old Modules.symvers file casued modpost to SEGV. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 10:10:19 +02:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: fix segv in modpost Parsing an old Modules.symvers file casued modpost to SEGV. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 10:10:19 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: fix module.symvers parsing in modpost read_dump didn't split lines between module name and export type. Signed-off-by: Laurent Riffard <laurent.riffard@free.fr> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-11 08:02:06 +02:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: fix segv in modpost Parsing an old Modules.symvers file casued modpost to SEGV. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-01 10:10:19 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: remove pointless strdup() on arguments passed to new_module() in modpost new_module() itself already calls strdup() on its modname parameter. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-03-12 12:28:30 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: warn about duplicate exported symbols In modpost introduce a check for symbols exported twice. This check caught only one victim (inet_bind_bucket_create) for which a patch is already sent to netdev. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:22:33 +01:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: Fix resource leak in read_dump() Function read_dump() memory maps the input via grab_file(), but fails to call the corresponding unmap function. Add the missing call to release_file(). Detected by Coverity: CID 1192419 Signed-off-by: Christian Engelmayer <cengelma@gmx.at> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-04-28 11:34:32 +09:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: Fix resource leak in read_dump() Function read_dump() memory maps the input via grab_file(), but fails to call the corresponding unmap function. Add the missing call to release_file(). Detected by Coverity: CID 1192419 Signed-off-by: Christian Engelmayer <cengelma@gmx.at> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-04-28 11:34:32 +09:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
kbuild: kill trailing whitespace in modpost & friends Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-03 16:46:04 +01:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
kbuild: kill trailing whitespace in modpost & friends Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-03 16:46:04 +01:00
kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-08 22:12:53 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: free allocated memory valgrind complains that memory is not freed after allocation with realloc() called from main() and write_dump(). So let us free the allocated memory properly. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Link: http://lkml.kernel.org/r/1470166981-6461-1-git-send-email-xypron.glpk@gmx.de Signed-off-by: Jessica Yu <jeyu@redhat.com>
2016-08-02 21:43:01 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: support loading extra symbols in modpost This patch adds a new command line option -E to modpost, expecting a symbol file as an argument which is read prior to symbol processing. -E can be supplied multiple times for as many files as is needed. When building kernel modules that depend on other modules not in the main kernel tree, modpost complains about undefined symbols: # make -C /path/to/linux/kernel M=/path/to/my/module ... Building modules, stage 2. .... WARNING: "rt_copy_buf" [/home/rich/osc_etl_rtw/osc_kmod.ko] undefined! ...etc This situation occurs when modpost processes the new module's symbols. When it finds symbols not exported by the mainline kernel, it issues this warning. The patch adds a new command line option -e to modpost which expects a symbol file as an argument. The symbols listed in this file are added to modpost's symbol tables during startup. -e can be supplied as often as required. This patch works together with the second patch. It introduces a new make variable, KBUILD_EXTRA_SYMBOLS, which is used when calling modpost. Signed-off-by: Richard Hacker <lerichi@gmx.net> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-28 09:40:52 +01:00
kbuild: apply CodingStyle to modpost.c Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 17:19:35 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
modpost: add -T option to read module names from file/stdin. Because there are too many modules in the world. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-04-04 17:37:38 +10:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: fail kernel compilation in case of unresolved module symbols At stage 2 modpost utility is used to check modules. In case of unresolved symbols modpost only prints warning. IMHO it is a good idea to fail compilation process in case of unresolved symbols (at least in modules coming with kernel), since usually such errors are left unnoticed, but kernel modules are broken. - new option '-w' is added to modpost: if option is specified, modpost only warns about unresolved symbols - modpost is called with '-w' for external modules in Makefile.modpost Signed-off-by: Andrey Mirkin <amirkin@sw.ru> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-07 13:08:54 -07:00
kbuild: support loading extra symbols in modpost This patch adds a new command line option -E to modpost, expecting a symbol file as an argument which is read prior to symbol processing. -E can be supplied multiple times for as many files as is needed. When building kernel modules that depend on other modules not in the main kernel tree, modpost complains about undefined symbols: # make -C /path/to/linux/kernel M=/path/to/my/module ... Building modules, stage 2. .... WARNING: "rt_copy_buf" [/home/rich/osc_etl_rtw/osc_kmod.ko] undefined! ...etc This situation occurs when modpost processes the new module's symbols. When it finds symbols not exported by the mainline kernel, it issues this warning. The patch adds a new command line option -e to modpost which expects a symbol file as an argument. The symbols listed in this file are added to modpost's symbol tables during startup. -e can be supplied as often as required. This patch works together with the second patch. It introduces a new make variable, KBUILD_EXTRA_SYMBOLS, which is used when calling modpost. Signed-off-by: Richard Hacker <lerichi@gmx.net> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-28 09:40:52 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: drop unused command line switches Drop modpost command line switches that are no longer used by makefile.modpost, upon request from Sam Ravnborg <sam@ravnborg.org>, who wrote: modpost is not supposed to be used outside the kernel build. [...] I checked if there were any options supported by modpost that was not configurable in Makefile.modpost. And I could see that the -M and -K options in getopt() were leftovers. The code that used these option was dropped in: commit a8773769d1a1 ("Kbuild: clear marker out of modpost") Could you add a patch that delete these on top of what you already have. https://lore.kernel.org/lkml/20181020140835.GA3351@ravnborg.org/ Suggested-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-11-14 16:56:01 -08:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: support loading extra symbols in modpost This patch adds a new command line option -E to modpost, expecting a symbol file as an argument which is read prior to symbol processing. -E can be supplied multiple times for as many files as is needed. When building kernel modules that depend on other modules not in the main kernel tree, modpost complains about undefined symbols: # make -C /path/to/linux/kernel M=/path/to/my/module ... Building modules, stage 2. .... WARNING: "rt_copy_buf" [/home/rich/osc_etl_rtw/osc_kmod.ko] undefined! ...etc This situation occurs when modpost processes the new module's symbols. When it finds symbols not exported by the mainline kernel, it issues this warning. The patch adds a new command line option -e to modpost which expects a symbol file as an argument. The symbols listed in this file are added to modpost's symbol tables during startup. -e can be supplied as often as required. This patch works together with the second patch. It introduces a new make variable, KBUILD_EXTRA_SYMBOLS, which is used when calling modpost. Signed-off-by: Richard Hacker <lerichi@gmx.net> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-28 09:40:52 +01:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
modpost: Optionally ignore secondary errors seen if a single module build fails Commit ea4054a23 (modpost: handle huge numbers of modules) added support for building a large number of modules. Unfortunately, the commit changed the semantics of the makefile: Instead of passing only existing object files to modpost, make now passes all expected object files. If make was started with option -i, this results in a modpost error if a single file failed to build. Example with the current btrfs build falure on m68k: fs/btrfs/btrfs.o: No such file or directory make[1]: [__modpost] Error 1 (ignored) This error is followed by lots of errors such as: m68k-linux-gcc: error: arch/m68k/emu/nfcon.mod.c: No such file or directory m68k-linux-gcc: fatal error: no input files compilation terminated. make[1]: [arch/m68k/emu/nfcon.mod.o] Error 1 (ignored) This doesn't matter much for normal builds, but it is annoying for builds started with "make -i" due to the large number of secondary errors. Those errors unnececessarily clog any error log and make it difficult to find the real errors in the build. Fix the problem by adding a new parameter '-n' to modpost. If this parameter is specified, modpost reports but ignores missing object files. With this patch, error output from above problem is (with make -i): m68k-linux-ld: cannot find fs/btrfs/ioctl.o: No such file or directory make[2]: [fs/btrfs/btrfs.o] Error 1 (ignored) ... fs/btrfs/btrfs.o: No such file or directory (ignored) Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michael Marek <mmarek@suse.cz> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-09-23 15:23:54 +09:30
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
kbuild: add verbose option to Section mismatch reporting in modpost If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-24 21:12:37 +01:00
modpost: add -T option to read module names from file/stdin. Because there are too many modules in the world. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-04-04 17:37:38 +10:30
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
modpost: Add flag -E for making section mismatches fatal The section mismatch warning can be easy to miss during the kernel build process. Allow it to be marked as fatal to be easily caught and prevent bugs from slipping in. Setting CONFIG_SECTION_MISMATCH_WARN_ONLY=y causes these warnings to be non-fatal, since there are a number of section mismatches when using allmodconfig on some architectures, and we do not want to break these builds by default. Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Change-Id: Ic346706e3297c9f0d790e3552aa94e5cff9897a6 Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-10-06 09:44:42 +10:30
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: improved modversioning support for external modules With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-28 22:15:55 +01:00
kbuild: support loading extra symbols in modpost This patch adds a new command line option -E to modpost, expecting a symbol file as an argument which is read prior to symbol processing. -E can be supplied multiple times for as many files as is needed. When building kernel modules that depend on other modules not in the main kernel tree, modpost complains about undefined symbols: # make -C /path/to/linux/kernel M=/path/to/my/module ... Building modules, stage 2. .... WARNING: "rt_copy_buf" [/home/rich/osc_etl_rtw/osc_kmod.ko] undefined! ...etc This situation occurs when modpost processes the new module's symbols. When it finds symbols not exported by the mainline kernel, it issues this warning. The patch adds a new command line option -e to modpost which expects a symbol file as an argument. The symbols listed in this file are added to modpost's symbol tables during startup. -e can be supplied as often as required. This patch works together with the second patch. It introduces a new make variable, KBUILD_EXTRA_SYMBOLS, which is used when calling modpost. Signed-off-by: Richard Hacker <lerichi@gmx.net> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-28 09:40:52 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: clean up modpost.c akpm complained about overly long lines in modpost.c and when started additional style issues were fixed: o Updated my copyright o Removed unneeded {} o Drop assignments in if () o Spaces around operators o Break long lines o locate * near variable not type o Fix a format specifier for sizeof() o Corrected placement of '{' and '}' o spaces to tabs (but use tabs only for indention) modpost.c is not checkpatch clean. Readability were favoured on top of checkpatch compliance. But checkpatch were used to find additional stuff to clean up. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-11 19:17:15 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: add -T option to read module names from file/stdin. Because there are too many modules in the world. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-04-04 17:37:38 +10:30
kbuild: fail kernel compilation in case of unresolved module symbols At stage 2 modpost utility is used to check modules. In case of unresolved symbols modpost only prints warning. IMHO it is a good idea to fail compilation process in case of unresolved symbols (at least in modules coming with kernel), since usually such errors are left unnoticed, but kernel modules are broken. - new option '-w' is added to modpost: if option is specified, modpost only warns about unresolved symbols - modpost is called with '-w' for external modules in Makefile.modpost Signed-off-by: Andrey Mirkin <amirkin@sw.ru> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-07 13:08:54 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: simplify file name generation of *.mod.c files Avoid the variable length array (vla), just use PATH_MAX instead. This not only makes this code clang friedly, it also leads to a code size reduction: text data bss dec hex filename 51765 2224 12416 66405 10365 scripts/mod/modpost.old 51677 2224 12416 66317 1030d scripts/mod/modpost.new Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2014-08-27 20:28:56 +09:30
kbuild: fix a buffer overflow in modpost When passing an file name > 1k the stack could be overflowed. Not really a security issue, but still better plugged. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-11-22 03:43:10 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: abort if module name is too long Module name has a limited length, but currently the build system allows the build finishing even if the module name is too long. CC /root/kprobe_example/abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz.mod.o /root/kprobe_example/abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz.mod.c:9:2: warning: initializer-string for array of chars is too long [enabled by default] .name = KBUILD_MODNAME, ^ but it's merely a warning. This patch adds the check of the module name length in modpost and stops the build properly. Signed-off-by: Wanlong Gao <wanlong.gao@gmail.com> Signed-off-by: Jessica Yu <jeyu@kernel.org>
2017-06-30 22:07:03 +08:00
modpost: move unresolved symbol checks to check_exports() This will fit better in check_exports() than add_versions(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-11-23 16:57:23 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
module,bug: Add TAINT_OOT_MODULE flag for modules not built in-tree Use of the GPL or a compatible licence doesn't necessarily make the code any good. We already consider staging modules to be suspect, and this should also be true for out-of-tree modules which may receive very little review. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Reviewed-by: Dave Jones <davej@redhat.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (patched oops-tracing.txt)
2011-10-24 15:12:28 +02:00
module/retpoline: Warn about missing retpoline in module There's a risk that a kernel which has full retpoline mitigations becomes vulnerable when a module gets loaded that hasn't been compiled with the right compiler or the right option. To enable detection of that mismatch at module load time, add a module info string "retpoline" at build time when the module was compiled with retpoline support. This only covers compiled C source, but assembler source or prebuilt object files are not checked. If a retpoline enabled kernel detects a non retpoline protected module at load time, print a warning and report it in the sysfs vulnerability file. [ tglx: Massaged changelog ] Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: David Woodhouse <dwmw2@infradead.org> Cc: gregkh@linuxfoundation.org Cc: torvalds@linux-foundation.org Cc: jeyu@kernel.org Cc: arjan@linux.intel.com Link: https://lkml.kernel.org/r/20180125235028.31211-1-andi@firstfloor.org
2018-01-25 15:50:28 -08:00
Staging: add TAINT_CRAP flag to drivers/staging modules We need to add a flag for all code that is in the drivers/staging/ directory to prevent all other kernel developers from worrying about issues here, and to notify users that the drivers might not be as good as they are normally used to. Based on code from Andreas Gruenbacher and Jeff Mahoney to provide a TAINT flag for the support level of a kernel module in the Novell enterprise kernel release. This is the code that actually modifies the modules, adding the flag to any files in the drivers/staging directory. Cc: Andreas Gruenbacher <agruen@suse.de> Cc: Jeff Mahoney <jeffm@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-09-24 14:46:44 -07:00
kbuild: fail kernel compilation in case of unresolved module symbols At stage 2 modpost utility is used to check modules. In case of unresolved symbols modpost only prints warning. IMHO it is a good idea to fail compilation process in case of unresolved symbols (at least in modules coming with kernel), since usually such errors are left unnoticed, but kernel modules are broken. - new option '-w' is added to modpost: if option is specified, modpost only warns about unresolved symbols - modpost is called with '-w' for external modules in Makefile.modpost Signed-off-by: Andrey Mirkin <amirkin@sw.ru> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-07 13:08:54 -07:00
modpost: refactor seen flag clearing in add_depends() You do not need to iterate over all modules for resetting ->seen flag because add_depends() is only interested in modules that export symbols referenced from the given 'mod'. This also avoids shadowing the 'modules' parameter of add_depends(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-11-23 16:57:21 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
modpost: Add flag -E for making section mismatches fatal The section mismatch warning can be easy to miss during the kernel build process. Allow it to be marked as fatal to be easily caught and prevent bugs from slipping in. Setting CONFIG_SECTION_MISMATCH_WARN_ONLY=y causes these warnings to be non-fatal, since there are a number of section mismatches when using allmodconfig on some architectures, and we do not want to break these builds by default. Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Change-Id: Ic346706e3297c9f0d790e3552aa94e5cff9897a6 Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-10-06 09:44:42 +10:30
modpost: free allocated memory valgrind complains that memory is not freed after allocation with realloc() called from main() and write_dump(). So let us free the allocated memory properly. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Link: http://lkml.kernel.org/r/1470166981-6461-1-git-send-email-xypron.glpk@gmx.de Signed-off-by: Jessica Yu <jeyu@redhat.com>
2016-08-02 21:43:01 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
kbuild: fail kernel compilation in case of unresolved module symbols At stage 2 modpost utility is used to check modules. In case of unresolved symbols modpost only prints warning. IMHO it is a good idea to fail compilation process in case of unresolved symbols (at least in modules coming with kernel), since usually such errors are left unnoticed, but kernel modules are broken. - new option '-w' is added to modpost: if option is specified, modpost only warns about unresolved symbols - modpost is called with '-w' for external modules in Makefile.modpost Signed-off-by: Andrey Mirkin <amirkin@sw.ru> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-09-07 13:08:54 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00