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linux/scripts/Makefile.asm-headers

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kbuild: add syscall table generation to scripts/Makefile.asm-headers There are 11 copies of arch/*/kernel/syscalls/Makefile that all implement the same basic logic in a somewhat awkward way. I tried out various ways of unifying the existing copies and ended up with something that hooks into the logic for generating the redirections to asm-generic headers. This gives a nicer syntax of being able to list the generated files in $(syscall-y) inside of arch/*/include/asm/Kbuild instead of both $(generated-y) in that place and also in another Makefile. The configuration for which syscall.tbl file to use and which ABIs to enable is now done in arch/*/kernel/Makefile.syscalls. I have done patches for all architectures and made sure that the new generic rules implement a superset of all the architecture specific corner cases. ince the header file is not specific to asm-generic/*.h redirects now, I ended up renaming the file to scripts/Makefile.asm-headers. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-04-26 15:19:48 +02:00
kbuild: Support generated asm-headers in subdirectories Extend the asm-header stub generation to also handle subdirectories. An upcoming vdso/ header refactoring requires this. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Reviewed-by: Nicolas Schier <nsc@kernel.org> Link: https://patch.msgid.link/20260724-vdso-arch-clockmodes-v4-1-ddbe447be860@linutronix.de
2026-07-24 15:36:18 +02:00
kbuild: add syscall table generation to scripts/Makefile.asm-headers There are 11 copies of arch/*/kernel/syscalls/Makefile that all implement the same basic logic in a somewhat awkward way. I tried out various ways of unifying the existing copies and ended up with something that hooks into the logic for generating the redirections to asm-generic headers. This gives a nicer syntax of being able to list the generated files in $(syscall-y) inside of arch/*/include/asm/Kbuild instead of both $(generated-y) in that place and also in another Makefile. The configuration for which syscall.tbl file to use and which ABIs to enable is now done in arch/*/kernel/Makefile.syscalls. I have done patches for all architectures and made sure that the new generic rules implement a superset of all the architecture specific corner cases. ince the header file is not specific to asm-generic/*.h redirects now, I ended up renaming the file to scripts/Makefile.asm-headers. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-04-26 15:19:48 +02:00
kbuild: Support generated asm-headers in subdirectories Extend the asm-header stub generation to also handle subdirectories. An upcoming vdso/ header refactoring requires this. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Reviewed-by: Nicolas Schier <nsc@kernel.org> Link: https://patch.msgid.link/20260724-vdso-arch-clockmodes-v4-1-ddbe447be860@linutronix.de
2026-07-24 15:36:18 +02:00
kbuild: add syscall table generation to scripts/Makefile.asm-headers There are 11 copies of arch/*/kernel/syscalls/Makefile that all implement the same basic logic in a somewhat awkward way. I tried out various ways of unifying the existing copies and ended up with something that hooks into the logic for generating the redirections to asm-generic headers. This gives a nicer syntax of being able to list the generated files in $(syscall-y) inside of arch/*/include/asm/Kbuild instead of both $(generated-y) in that place and also in another Makefile. The configuration for which syscall.tbl file to use and which ABIs to enable is now done in arch/*/kernel/Makefile.syscalls. I have done patches for all architectures and made sure that the new generic rules implement a superset of all the architecture specific corner cases. ince the header file is not specific to asm-generic/*.h redirects now, I ended up renaming the file to scripts/Makefile.asm-headers. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-04-26 15:19:48 +02:00
kbuild: Support generated asm-headers in subdirectories Extend the asm-header stub generation to also handle subdirectories. An upcoming vdso/ header refactoring requires this. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Reviewed-by: Nicolas Schier <nsc@kernel.org> Link: https://patch.msgid.link/20260724-vdso-arch-clockmodes-v4-1-ddbe447be860@linutronix.de
2026-07-24 15:36:18 +02:00
kbuild: add syscall table generation to scripts/Makefile.asm-headers There are 11 copies of arch/*/kernel/syscalls/Makefile that all implement the same basic logic in a somewhat awkward way. I tried out various ways of unifying the existing copies and ended up with something that hooks into the logic for generating the redirections to asm-generic headers. This gives a nicer syntax of being able to list the generated files in $(syscall-y) inside of arch/*/include/asm/Kbuild instead of both $(generated-y) in that place and also in another Makefile. The configuration for which syscall.tbl file to use and which ABIs to enable is now done in arch/*/kernel/Makefile.syscalls. I have done patches for all architectures and made sure that the new generic rules implement a superset of all the architecture specific corner cases. ince the header file is not specific to asm-generic/*.h redirects now, I ended up renaming the file to scripts/Makefile.asm-headers. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-04-26 15:19:48 +02:00
kbuild: Support generated asm-headers in subdirectories Extend the asm-header stub generation to also handle subdirectories. An upcoming vdso/ header refactoring requires this. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Reviewed-by: Nicolas Schier <nsc@kernel.org> Link: https://patch.msgid.link/20260724-vdso-arch-clockmodes-v4-1-ddbe447be860@linutronix.de
2026-07-24 15:36:18 +02:00
kbuild: add syscall table generation to scripts/Makefile.asm-headers There are 11 copies of arch/*/kernel/syscalls/Makefile that all implement the same basic logic in a somewhat awkward way. I tried out various ways of unifying the existing copies and ended up with something that hooks into the logic for generating the redirections to asm-generic headers. This gives a nicer syntax of being able to list the generated files in $(syscall-y) inside of arch/*/include/asm/Kbuild instead of both $(generated-y) in that place and also in another Makefile. The configuration for which syscall.tbl file to use and which ABIs to enable is now done in arch/*/kernel/Makefile.syscalls. I have done patches for all architectures and made sure that the new generic rules implement a superset of all the architecture specific corner cases. ince the header file is not specific to asm-generic/*.h redirects now, I ended up renaming the file to scripts/Makefile.asm-headers. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-04-26 15:19:48 +02:00
kbuild: fix rebuild of generic syscall headers Commit fbb5c0606fa4 ("kbuild: add syscall table generation to scripts/Makefile.asm-headers") started to generate syscall headers for architectures using generic syscalls. However, these headers are always rebuilt using GNU Make 4.4.1 or newer. When using GNU Make 4.4 or older, these headers are not rebuilt when the command to generate them is changed, despite the use of the if_changed macro. scripts/Makefile.asm-headers now uses FORCE, but it is not marked as .PHONY. To handle the command line change correctly, .*.cmd files must be included. Fixes: fbb5c0606fa4 ("kbuild: add syscall table generation to scripts/Makefile.asm-headers") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Closes: https://lore.kernel.org/lkml/CAHk-=wibB7SvXnUftBgAt+4-3vEKRpvEgBeDEH=i=j2GvDitoA@mail.gmail.com/ Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Tested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-07-18 01:24:20 +09:00
kbuild: add syscall table generation to scripts/Makefile.asm-headers There are 11 copies of arch/*/kernel/syscalls/Makefile that all implement the same basic logic in a somewhat awkward way. I tried out various ways of unifying the existing copies and ended up with something that hooks into the logic for generating the redirections to asm-generic headers. This gives a nicer syntax of being able to list the generated files in $(syscall-y) inside of arch/*/include/asm/Kbuild instead of both $(generated-y) in that place and also in another Makefile. The configuration for which syscall.tbl file to use and which ABIs to enable is now done in arch/*/kernel/Makefile.syscalls. I have done patches for all architectures and made sure that the new generic rules implement a superset of all the architecture specific corner cases. ince the header file is not specific to asm-generic/*.h redirects now, I ended up renaming the file to scripts/Makefile.asm-headers. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-04-26 15:19:48 +02:00
kbuild: fix rebuild of generic syscall headers Commit fbb5c0606fa4 ("kbuild: add syscall table generation to scripts/Makefile.asm-headers") started to generate syscall headers for architectures using generic syscalls. However, these headers are always rebuilt using GNU Make 4.4.1 or newer. When using GNU Make 4.4 or older, these headers are not rebuilt when the command to generate them is changed, despite the use of the if_changed macro. scripts/Makefile.asm-headers now uses FORCE, but it is not marked as .PHONY. To handle the command line change correctly, .*.cmd files must be included. Fixes: fbb5c0606fa4 ("kbuild: add syscall table generation to scripts/Makefile.asm-headers") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Closes: https://lore.kernel.org/lkml/CAHk-=wibB7SvXnUftBgAt+4-3vEKRpvEgBeDEH=i=j2GvDitoA@mail.gmail.com/ Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Tested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-07-18 01:24:20 +09:00
kbuild: add syscall table generation to scripts/Makefile.asm-headers There are 11 copies of arch/*/kernel/syscalls/Makefile that all implement the same basic logic in a somewhat awkward way. I tried out various ways of unifying the existing copies and ended up with something that hooks into the logic for generating the redirections to asm-generic headers. This gives a nicer syntax of being able to list the generated files in $(syscall-y) inside of arch/*/include/asm/Kbuild instead of both $(generated-y) in that place and also in another Makefile. The configuration for which syscall.tbl file to use and which ABIs to enable is now done in arch/*/kernel/Makefile.syscalls. I have done patches for all architectures and made sure that the new generic rules implement a superset of all the architecture specific corner cases. ince the header file is not specific to asm-generic/*.h redirects now, I ended up renaming the file to scripts/Makefile.asm-headers. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-04-26 15:19:48 +02:00
kbuild: fix rebuild of generic syscall headers Commit fbb5c0606fa4 ("kbuild: add syscall table generation to scripts/Makefile.asm-headers") started to generate syscall headers for architectures using generic syscalls. However, these headers are always rebuilt using GNU Make 4.4.1 or newer. When using GNU Make 4.4 or older, these headers are not rebuilt when the command to generate them is changed, despite the use of the if_changed macro. scripts/Makefile.asm-headers now uses FORCE, but it is not marked as .PHONY. To handle the command line change correctly, .*.cmd files must be included. Fixes: fbb5c0606fa4 ("kbuild: add syscall table generation to scripts/Makefile.asm-headers") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Closes: https://lore.kernel.org/lkml/CAHk-=wibB7SvXnUftBgAt+4-3vEKRpvEgBeDEH=i=j2GvDitoA@mail.gmail.com/ Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Tested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-07-18 01:24:20 +09:00
kbuild: add syscall table generation to scripts/Makefile.asm-headers There are 11 copies of arch/*/kernel/syscalls/Makefile that all implement the same basic logic in a somewhat awkward way. I tried out various ways of unifying the existing copies and ended up with something that hooks into the logic for generating the redirections to asm-generic headers. This gives a nicer syntax of being able to list the generated files in $(syscall-y) inside of arch/*/include/asm/Kbuild instead of both $(generated-y) in that place and also in another Makefile. The configuration for which syscall.tbl file to use and which ABIs to enable is now done in arch/*/kernel/Makefile.syscalls. I have done patches for all architectures and made sure that the new generic rules implement a superset of all the architecture specific corner cases. ince the header file is not specific to asm-generic/*.h redirects now, I ended up renaming the file to scripts/Makefile.asm-headers. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-04-26 15:19:48 +02:00