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linux/tools/objtool/sync-check.sh

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objtool: Move kernel headers/code sync check to a script Replace the nasty diff checks in the objtool Makefile with a clean bash script, and make the warnings more specific. Heavily inspired by tools/perf/check-headers.sh. Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/ab015f15ccd8c0c6008493c3c6ee3d495eaf2927.1509974346.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-06 07:21:51 -06:00
objtool: Make sync-check consider the target architecture Do not take into account outdated headers unrelated to the build of the current architecture. [ jpoimboe: use $SRCARCH directly ] Reviewed-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Julien Thierry <jthierry@redhat.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
2020-09-04 16:30:20 +01:00
objtool: Add objtool_types.h Reduce the amount of header sync churn by splitting the shared objtool.h types into a new file. Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/dec622720851210ceafa12d4f4c5f9e73c832152.1677683419.git.jpoimboe@kernel.org
2023-03-01 07:13:07 -08:00
objtool: Make unwind hint definitions available to other architectures Unwind hints are useful to provide objtool with information about stack states in non-standard functions/code. While the type of information being provided might be very arch specific, the mechanism to provide the information can be useful for other architectures. Move the relevant unwint hint definitions for all architectures to see. [ jpoimboe: REGS_IRET -> REGS_PARTIAL ] Signed-off-by: Julien Thierry <jthierry@redhat.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
2020-09-04 16:30:27 +01:00
objtool: Make sync-check consider the target architecture Do not take into account outdated headers unrelated to the build of the current architecture. [ jpoimboe: use $SRCARCH directly ] Reviewed-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Julien Thierry <jthierry@redhat.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
2020-09-04 16:30:20 +01:00
objtool: Make unwind hint definitions available to other architectures Unwind hints are useful to provide objtool with information about stack states in non-standard functions/code. While the type of information being provided might be very arch specific, the mechanism to provide the information can be useful for other architectures. Move the relevant unwint hint definitions for all architectures to see. [ jpoimboe: REGS_IRET -> REGS_PARTIAL ] Signed-off-by: Julien Thierry <jthierry@redhat.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
2020-09-04 16:30:27 +01:00
objtool/x86: Use asm/nops.h Since the kernel will rely on a single canonical set of NOPs, make sure objtool uses the exact same ones. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210312115749.136357911@infradead.org
2021-03-12 12:32:55 +01:00
objtool: Move kernel headers/code sync check to a script Replace the nasty diff checks in the objtool Makefile with a clean bash script, and make the warnings more specific. Heavily inspired by tools/perf/check-headers.sh. Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/ab015f15ccd8c0c6008493c3c6ee3d495eaf2927.1509974346.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-06 07:21:51 -06:00
x86: xen: insn: Decode Xen and KVM emulate-prefix signature Decode Xen and KVM's emulate-prefix signature by x86 insn decoder. It is called "prefix" but actually not x86 instruction prefix, so this adds insn.emulate_prefix_size field instead of reusing insn.prefixes. If x86 decoder finds a special sequence of instructions of XEN_EMULATE_PREFIX and 'ud2a; .ascii "kvm"', it just counts the length, set insn.emulate_prefix_size and fold it with the next instruction. In other words, the signature and the next instruction is treated as a single instruction. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: x86@kernel.org Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: Andrew Cooper <andrew.cooper3@citrix.com> Cc: Borislav Petkov <bp@alien8.de> Cc: xen-devel@lists.xenproject.org Cc: Randy Dunlap <rdunlap@infradead.org> Link: https://lkml.kernel.org/r/156777564986.25081.4964537658500952557.stgit@devnote2
2019-09-06 22:14:10 +09:00
objtool: Move x86 insn decoder to a common location The kernel tree has three identical copies of the x86 instruction decoder. Two of them are in the tools subdir. The tools subdir is supposed to be completely standalone and separate from the kernel. So having at least one copy of the kernel decoder in the tools subdir is unavoidable. However, we don't need *two* of them. Move objtool's copy of the decoder to a shared location, so that perf will also be able to use it. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: x86@kernel.org Link: http://lore.kernel.org/lkml/55b486b88f6bcd0c9a2a04b34f964860c8390ca8.1567118001.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-29 17:41:18 -05:00
x86/static_call: Add inline static call implementation for x86-64 Add the inline static call implementation for x86-64. The generated code is identical to the out-of-line case, except we move the trampoline into it's own section. Objtool uses the trampoline naming convention to detect all the call sites. It then annotates those call sites in the .static_call_sites section. During boot (and module init), the call sites are patched to call directly into the destination function. The temporary trampoline is then no longer used. [peterz: merged trampolines, put trampoline in section] Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: https://lore.kernel.org/r/20200818135804.864271425@infradead.org
2020-08-18 15:57:45 +02:00
objtool: Group headers to check in a single list In order to support multiple architectures and potentially different sets of headers to compare against their kernel equivalent, it is simpler to have all headers to check in a single list. Reviewed-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Julien Thierry <jthierry@redhat.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
2020-09-04 16:30:19 +01:00
x86/insn: Add a __ignore_sync_check__ marker Add an explicit __ignore_sync_check__ marker which will be used to mark lines which are supposed to be ignored by file synchronization check scripts, its advantage being that it explicitly denotes such lines in the code. Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lkml.kernel.org/r/20210304174237.31945-4-bp@alien8.de
2021-02-22 13:34:40 +01:00
objtool: Make sync-check consider the target architecture Do not take into account outdated headers unrelated to the build of the current architecture. [ jpoimboe: use $SRCARCH directly ] Reviewed-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Julien Thierry <jthierry@redhat.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
2020-09-04 16:30:20 +01:00
objtool: Move kernel headers/code sync check to a script Replace the nasty diff checks in the objtool Makefile with a clean bash script, and make the warnings more specific. Heavily inspired by tools/perf/check-headers.sh. Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/ab015f15ccd8c0c6008493c3c6ee3d495eaf2927.1509974346.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-06 07:21:51 -06:00
objtool: Update sync-check.sh from perf's check-headers.sh To allow using the -I trick that will be needed for checking the x86 insn decoder files. Without the specific -I lines we still get the same warnings as before: $ make -C tools/objtool/ clean ; make -C tools/objtool/ make: Entering directory '/home/acme/git/perf/tools/objtool' CLEAN objtool find -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete rm -f arch/x86/inat-tables.c fixdep <SNIP> LD objtool-in.o make[1]: Leaving directory '/home/acme/git/perf/tools/objtool' Warning: Kernel ABI header at 'tools/arch/x86/include/asm/inat.h' differs from latest version at 'arch/x86/include/asm/inat.h' diff -u tools/arch/x86/include/asm/inat.h arch/x86/include/asm/inat.h Warning: Kernel ABI header at 'tools/arch/x86/include/asm/insn.h' differs from latest version at 'arch/x86/include/asm/insn.h' diff -u tools/arch/x86/include/asm/insn.h arch/x86/include/asm/insn.h Warning: Kernel ABI header at 'tools/arch/x86/lib/inat.c' differs from latest version at 'arch/x86/lib/inat.c' diff -u tools/arch/x86/lib/inat.c arch/x86/lib/inat.c Warning: Kernel ABI header at 'tools/arch/x86/lib/insn.c' differs from latest version at 'arch/x86/lib/insn.c' diff -u tools/arch/x86/lib/insn.c arch/x86/lib/insn.c /home/acme/git/perf/tools/objtool LINK objtool make: Leaving directory '/home/acme/git/perf/tools/objtool' $ The next patch will add the -I lines for those files. Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: http://lore.kernel.org/lkml/20190830193109.p7jagidsrahoa4pn@treble Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/n/tip-vu3p38mnxlwd80rlsnjkqcf2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-31 17:29:47 -03:00
objtool: Move kernel headers/code sync check to a script Replace the nasty diff checks in the objtool Makefile with a clean bash script, and make the warnings more specific. Heavily inspired by tools/perf/check-headers.sh. Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/ab015f15ccd8c0c6008493c3c6ee3d495eaf2927.1509974346.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-06 07:21:51 -06:00
objtool: Update sync-check.sh from perf's check-headers.sh To allow using the -I trick that will be needed for checking the x86 insn decoder files. Without the specific -I lines we still get the same warnings as before: $ make -C tools/objtool/ clean ; make -C tools/objtool/ make: Entering directory '/home/acme/git/perf/tools/objtool' CLEAN objtool find -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete rm -f arch/x86/inat-tables.c fixdep <SNIP> LD objtool-in.o make[1]: Leaving directory '/home/acme/git/perf/tools/objtool' Warning: Kernel ABI header at 'tools/arch/x86/include/asm/inat.h' differs from latest version at 'arch/x86/include/asm/inat.h' diff -u tools/arch/x86/include/asm/inat.h arch/x86/include/asm/inat.h Warning: Kernel ABI header at 'tools/arch/x86/include/asm/insn.h' differs from latest version at 'arch/x86/include/asm/insn.h' diff -u tools/arch/x86/include/asm/insn.h arch/x86/include/asm/insn.h Warning: Kernel ABI header at 'tools/arch/x86/lib/inat.c' differs from latest version at 'arch/x86/lib/inat.c' diff -u tools/arch/x86/lib/inat.c arch/x86/lib/inat.c Warning: Kernel ABI header at 'tools/arch/x86/lib/insn.c' differs from latest version at 'arch/x86/lib/insn.c' diff -u tools/arch/x86/lib/insn.c arch/x86/lib/insn.c /home/acme/git/perf/tools/objtool LINK objtool make: Leaving directory '/home/acme/git/perf/tools/objtool' $ The next patch will add the -I lines for those files. Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: http://lore.kernel.org/lkml/20190830193109.p7jagidsrahoa4pn@treble Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/n/tip-vu3p38mnxlwd80rlsnjkqcf2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-31 17:29:47 -03:00
objtool: Move kernel headers/code sync check to a script Replace the nasty diff checks in the objtool Makefile with a clean bash script, and make the warnings more specific. Heavily inspired by tools/perf/check-headers.sh. Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/ab015f15ccd8c0c6008493c3c6ee3d495eaf2927.1509974346.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-06 07:21:51 -06:00
objtool: Update sync-check.sh from perf's check-headers.sh To allow using the -I trick that will be needed for checking the x86 insn decoder files. Without the specific -I lines we still get the same warnings as before: $ make -C tools/objtool/ clean ; make -C tools/objtool/ make: Entering directory '/home/acme/git/perf/tools/objtool' CLEAN objtool find -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete rm -f arch/x86/inat-tables.c fixdep <SNIP> LD objtool-in.o make[1]: Leaving directory '/home/acme/git/perf/tools/objtool' Warning: Kernel ABI header at 'tools/arch/x86/include/asm/inat.h' differs from latest version at 'arch/x86/include/asm/inat.h' diff -u tools/arch/x86/include/asm/inat.h arch/x86/include/asm/inat.h Warning: Kernel ABI header at 'tools/arch/x86/include/asm/insn.h' differs from latest version at 'arch/x86/include/asm/insn.h' diff -u tools/arch/x86/include/asm/insn.h arch/x86/include/asm/insn.h Warning: Kernel ABI header at 'tools/arch/x86/lib/inat.c' differs from latest version at 'arch/x86/lib/inat.c' diff -u tools/arch/x86/lib/inat.c arch/x86/lib/inat.c Warning: Kernel ABI header at 'tools/arch/x86/lib/insn.c' differs from latest version at 'arch/x86/lib/insn.c' diff -u tools/arch/x86/lib/insn.c arch/x86/lib/insn.c /home/acme/git/perf/tools/objtool LINK objtool make: Leaving directory '/home/acme/git/perf/tools/objtool' $ The next patch will add the -I lines for those files. Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: http://lore.kernel.org/lkml/20190830193109.p7jagidsrahoa4pn@treble Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/n/tip-vu3p38mnxlwd80rlsnjkqcf2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-31 17:29:47 -03:00
objtool: Group headers to check in a single list In order to support multiple architectures and potentially different sets of headers to compare against their kernel equivalent, it is simpler to have all headers to check in a single list. Reviewed-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Julien Thierry <jthierry@redhat.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
2020-09-04 16:30:19 +01:00
objtool: Update sync-check.sh from perf's check-headers.sh To allow using the -I trick that will be needed for checking the x86 insn decoder files. Without the specific -I lines we still get the same warnings as before: $ make -C tools/objtool/ clean ; make -C tools/objtool/ make: Entering directory '/home/acme/git/perf/tools/objtool' CLEAN objtool find -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete rm -f arch/x86/inat-tables.c fixdep <SNIP> LD objtool-in.o make[1]: Leaving directory '/home/acme/git/perf/tools/objtool' Warning: Kernel ABI header at 'tools/arch/x86/include/asm/inat.h' differs from latest version at 'arch/x86/include/asm/inat.h' diff -u tools/arch/x86/include/asm/inat.h arch/x86/include/asm/inat.h Warning: Kernel ABI header at 'tools/arch/x86/include/asm/insn.h' differs from latest version at 'arch/x86/include/asm/insn.h' diff -u tools/arch/x86/include/asm/insn.h arch/x86/include/asm/insn.h Warning: Kernel ABI header at 'tools/arch/x86/lib/inat.c' differs from latest version at 'arch/x86/lib/inat.c' diff -u tools/arch/x86/lib/inat.c arch/x86/lib/inat.c Warning: Kernel ABI header at 'tools/arch/x86/lib/insn.c' differs from latest version at 'arch/x86/lib/insn.c' diff -u tools/arch/x86/lib/insn.c arch/x86/lib/insn.c /home/acme/git/perf/tools/objtool LINK objtool make: Leaving directory '/home/acme/git/perf/tools/objtool' $ The next patch will add the -I lines for those files. Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: http://lore.kernel.org/lkml/20190830193109.p7jagidsrahoa4pn@treble Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/n/tip-vu3p38mnxlwd80rlsnjkqcf2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-31 17:29:47 -03:00
objtool: Group headers to check in a single list In order to support multiple architectures and potentially different sets of headers to compare against their kernel equivalent, it is simpler to have all headers to check in a single list. Reviewed-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Julien Thierry <jthierry@redhat.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
2020-09-04 16:30:19 +01:00
x86/insn: Add a __ignore_sync_check__ marker Add an explicit __ignore_sync_check__ marker which will be used to mark lines which are supposed to be ignored by file synchronization check scripts, its advantage being that it explicitly denotes such lines in the code. Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lkml.kernel.org/r/20210304174237.31945-4-bp@alien8.de
2021-02-22 13:34:40 +01:00