Changes in Kbuild

0c3beacf - asm-generic: introduce text-patching.h

Wed, 23 Oct 2024 16:27:06 +0000

asm-generic: introduce text-patching.hSeveral architectures support text patching, but they name the headerfiles that declare patching functions differently.Make all such headers consistently named text-patching.h and add an emptyheader in asm-generic for architectures that do not support text patching.Link: https://lkml.kernel.org/r/20241023162711.2579610-4-rppt@kernel.orgSigned-off-by: Mike Rapoport (Microsoft) Reviewed-by: Christoph Hellwig Acked-by: Geert Uytterhoeven # m68kAcked-by: Arnd Bergmann Reviewed-by: Luis Chamberlain Tested-by: kdevops Cc: Andreas Larsson Cc: Andy Lutomirski Cc: Ard Biesheuvel Cc: Borislav Petkov (AMD) Cc: Brian Cain Cc: Catalin Marinas Cc: Christophe Leroy Cc: Dave Hansen Cc: Dinh Nguyen Cc: Guo Ren Cc: Helge Deller Cc: Huacai Chen Cc: Ingo Molnar Cc: Johannes Berg Cc: John Paul Adrian Glaubitz Cc: Kent Overstreet Cc: Liam R. Howlett Cc: Mark Rutland Cc: Masami Hiramatsu (Google) Cc: Matt Turner Cc: Max Filippov Cc: Michael Ellerman Cc: Michal Simek Cc: Oleg Nesterov Cc: Palmer Dabbelt Cc: Peter Zijlstra Cc: Richard Weinberger Cc: Russell King Cc: Song Liu Cc: Stafford Horne Cc: Steven Rostedt (Google) Cc: Suren Baghdasaryan Cc: Thomas Bogendoerfer Cc: Thomas Gleixner Cc: Uladzislau Rezki (Sony) Cc: Vineet Gupta Cc: Will Deacon Signed-off-by: Andrew Morton List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

6831a8a3 - m68k: Remove

Mon, 07 Aug 2023 15:36:54 +0000

m68k: Remove All *.S files under arch/m68k/ have been converted to include instead of .Remove .Signed-off-by: Masahiro Yamada Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20230807153654.997091-2-masahiroy@kernel.orgSigned-off-by: Geert Uytterhoeven List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

7b453719 - kbuild: link symbol CRCs at final link, removing CONFIG_MODULE_REL_CRCS

Fri, 13 May 2022 11:39:22 +0000

kbuild: link symbol CRCs at final link, removing CONFIG_MODULE_REL_CRCSinclude/{linux,asm-generic}/export.h defines a weak symbol, __crc_*as a placeholder.Genksyms writes the version CRCs into the linker script, which will beused for filling the __crc_* symbols. The linker script format dependson CONFIG_MODULE_REL_CRCS. If it is enabled, __crc_* holds the offsetto the reference of CRC.It is time to get rid of this complexity.Now that modpost parses text files (.*.cmd) to collect all the CRCs,it can generate C code that will be linked to the vmlinux or modules.Generate a new C file, .vmlinux.export.c, which contains the CRCs ofsymbols exported by vmlinux. It is compiled and linked to vmlinux inscripts/link-vmlinux.sh.Put the CRCs of symbols exported by modules into the existing *.mod.cfiles. No additional build step is needed for modules. As before,*.mod.c are compiled and linked to *.ko in scripts/Makefile.modfinal.No linker magic is used here. The new C implementation works in thesame way, whether CONFIG_RELOCATABLE is enabled or not.CONFIG_MODULE_REL_CRCS is no longer needed.Previously, Kbuild invoked additional $(LD) to update the CRCs inobjects, but this step is unneeded too.Signed-off-by: Masahiro Yamada Tested-by: Nathan Chancellor Tested-by: Nicolas Schier Reviewed-by: Nicolas Schier Tested-by: Sedat Dilek # LLVM-14 (x86-64) List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

87dbc209 - local64.h: make mandatory

Tue, 29 Dec 2020 23:14:49 +0000

local64.h: make mandatoryMake mandatory in include/asm-generic/Kbuild andremove all arch/*/include/asm/local64.h arch-specific files since theyonly #include .This fixes build errors on arch/c6x/ and arch/nios2/ forblock/blk-iocost.c.Build-tested on 21 of 25 arch-es. (tools problems on the others)Yes, we could even rename to and change all #includes to use instead.Link: https://lkml.kernel.org/r/20201227024446.17018-1-rdunlap@infradead.orgSigned-off-by: Randy Dunlap Suggested-by: Christoph Hellwig Reviewed-by: Masahiro Yamada Cc: Jens Axboe Cc: Ley Foon Tan Cc: Mark Salter Cc: Aurelien Jacquiot Cc: Peter Zijlstra Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

ac4075bc - m68k: Drop redundant generic-y += hardirq.h

Mon, 13 Apr 2020 09:35:52 +0000

m68k: Drop redundant generic-y += hardirq.hThe cleanup in commit 630f289b7114c0e6 ("asm-generic: make morekernel-space headers mandatory") did not take into account the recentlyadded line for hardirq.h in commit acc45648b9aefa90 ("m68k: Switch toasm-generic/hardirq.h"), leading to the following message during thebuild: scripts/Makefile.asm-generic:25: redundant generic-y found in arch/m68k/include/asm/Kbuild: hardirq.hFix this by dropping the now redundant line.Fixes: 630f289b7114c0e6 ("asm-generic: make more kernel-space headers mandatory")Signed-off-by: Geert Uytterhoeven Reviewed-by: Masahiro Yamada Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

630f289b - asm-generic: make more kernel-space headers mandatory

Thu, 02 Apr 2020 04:03:12 +0000

asm-generic: make more kernel-space headers mandatoryChange a header to mandatory-y if both of the following are met:[1] At least one architecture (except um) specifies it as generic-y in arch/*/include/asm/Kbuild[2] Every architecture (except um) either has its own implementation (arch/*/include/asm/*.h) or specifies it as generic-y in arch/*/include/asm/KbuildThis commit was generated by the following shell script.----------------------------------->8-----------------------------------arches=$(cd arch; ls -1 | sed -e '/Kconfig/d' -e '/um/d')tmpfile=$(mktemp)grep "^mandatory-y +=" include/asm-generic/Kbuild > $tmpfilefind arch -path 'arch/*/include/asm/Kbuild' | xargs sed -n 's/^generic-y += $.*$/\1/p' | sort -u |while read headerdo mandatory=yes for arch in $arches do if ! grep -q "generic-y += $header" arch/$arch/include/asm/Kbuild && ! [ -f arch/$arch/include/asm/$header ]; then mandatory=no break fi done if [ "$mandatory" = yes ]; then echo "mandatory-y += $header" >> $tmpfile for arch in $arches do sed -i "/generic-y += $header/d" arch/$arch/include/asm/Kbuild done fidonesed -i '/^mandatory-y +=/d' include/asm-generic/KbuildLANG=C sort $tmpfile >> include/asm-generic/Kbuild----------------------------------->8-----------------------------------One obvious benefit is the diff stat: 25 files changed, 52 insertions(+), 557 deletions(-)It is tedious to list generic-y for each arch that needs it.So, mandatory-y works like a fallback default (by just wrappingasm-generic one) when arch does not have a specific headerimplementation.See the following commits:def3f7cefe4e81c296090e1722a76551142c227ca1b39bae16a62ce4aae02d958224f19316d98b24It is tedious to convert headers one by one, so I processed by a shellscript.Signed-off-by: Masahiro Yamada Signed-off-by: Andrew Morton Cc: Michal Simek Cc: Christoph Hellwig Cc: Arnd Bergmann Link: http://lkml.kernel.org/r/20200210175452.5030-1-masahiroy@kernel.orgSigned-off-by: Linus Torvalds List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

acc45648 - m68k: Switch to asm-generic/hardirq.h

Sun, 12 Jan 2020 17:48:54 +0000

m68k: Switch to asm-generic/hardirq.hClassic m68k with MMU was converted to generic hardirqs a long time ago,and there are no longer include dependency issues preventing the directuse of asm-generic/hardirq.h.Signed-off-by: Geert Uytterhoeven Acked-by: Greg Ungerer Link: https://lore.kernel.org/r/20200112174854.2726-1-geert@linux-m68k.org List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

96ac6d43 - treewide: Add SPDX license identifier - Kbuild

Thu, 30 May 2019 12:03:44 +0000

treewide: Add SPDX license identifier - KbuildAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0Reported-by: Masahiro Yamada Signed-off-by: Greg Kroah-Hartman Reviewed-by: Kate Stewart Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

fdcd06a8 - arch: Use asm-generic header for asm/mmiowb.h

Fri, 22 Feb 2019 12:49:41 +0000

arch: Use asm-generic header for asm/mmiowb.hHook up asm-generic/mmiowb.h to Kbuild for all architectures so that wecan subsequently include asm/mmiowb.h from core code.Cc: Masahiro Yamada Cc: Arnd Bergmann Acked-by: Linus Torvalds Signed-off-by: Will Deacon List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

3d9683cf - KVM: export and iif KVM is supported

Mon, 18 Mar 2019 09:08:12 +0000

KVM: export and iif KVM is supportedI do not see any consistency about headers_install of and .According to my analysis of Linux 5.1-rc1, there are 3 groups: [1] Both and are exported alpha, arm, hexagon, mips, powerpc, s390, sparc, x86 [2] is exported, but is not arc, arm64, c6x, h8300, ia64, m68k, microblaze, nios2, openrisc, parisc, sh, unicore32, xtensa [3] Neither nor is exported csky, nds32, riscvThis does not match to the actual KVM support. At least, [2] ishalf-baked.Nor do arch maintainers look like they care about this. For example,commit 0add53713b1c ("microblaze: Add missing kvm_para.h to Kbuild")exported to user-space in order to fix an in-kernelbuild error.We have two ways to make this consistent: [A] export both and for all architectures, irrespective of the KVM support [B] Match the header export of and to the KVM supportMy first attempt was [A] because the code looks cleaner, but Paolosuggested [B].So, this commit goes with [B].For most architectures, was moved to the kernel-space.I changed include/uapi/linux/Kbuild so that it checks generatedasm/kvm_para.h as well as check-in ones.After this commit, there will be two groups: [1] Both and are exported arm, arm64, mips, powerpc, s390, x86 [2] Neither nor is exported alpha, arc, c6x, csky, h8300, hexagon, ia64, m68k, microblaze, nds32, nios2, openrisc, parisc, riscv, sh, sparc, unicore32, xtensaSigned-off-by: Masahiro Yamada Acked-by: Cornelia Huck Signed-off-by: Paolo Bonzini List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

36c0f7f0 - arch: unexport asm/shmparam.h for all architectures

Fri, 01 Feb 2019 22:20:12 +0000

arch: unexport asm/shmparam.h for all architecturesMost architectures do not export shmparam.h to user-space. $ find arch -name shmparam.h | sort arch/alpha/include/asm/shmparam.h arch/arc/include/asm/shmparam.h arch/arm64/include/asm/shmparam.h arch/arm/include/asm/shmparam.h arch/csky/include/asm/shmparam.h arch/ia64/include/asm/shmparam.h arch/mips/include/asm/shmparam.h arch/nds32/include/asm/shmparam.h arch/nios2/include/asm/shmparam.h arch/parisc/include/asm/shmparam.h arch/powerpc/include/asm/shmparam.h arch/s390/include/asm/shmparam.h arch/sh/include/asm/shmparam.h arch/sparc/include/asm/shmparam.h arch/x86/include/asm/shmparam.h arch/xtensa/include/asm/shmparam.hStrangely, some users of the asm-generic wrapper export shmparam.h $ git grep 'generic-y += shmparam.h' arch/c6x/include/uapi/asm/Kbuild:generic-y += shmparam.h arch/h8300/include/uapi/asm/Kbuild:generic-y += shmparam.h arch/hexagon/include/uapi/asm/Kbuild:generic-y += shmparam.h arch/m68k/include/uapi/asm/Kbuild:generic-y += shmparam.h arch/microblaze/include/uapi/asm/Kbuild:generic-y += shmparam.h arch/openrisc/include/uapi/asm/Kbuild:generic-y += shmparam.h arch/riscv/include/asm/Kbuild:generic-y += shmparam.h arch/unicore32/include/uapi/asm/Kbuild:generic-y += shmparam.hThe newly added riscv correctly creates the asm-generic wrapperin the kernel space, but the others (c6x, h8300, hexagon, m68k,microblaze, openrisc, unicore32) create the one in the uapi directory.Digging into the git history, now I guess fcc8487d477a ("uapi:export all headers under uapi directories") was the misconversion.Prior to that commit, no architecture exported to shmparam.hAs its commit description said, that commit exported shmparam.hfor c6x, h8300, hexagon, m68k, openrisc, unicore32.83f0124ad81e ("microblaze: remove asm-generic wrapper headers")accidentally exported shmparam.h for microblaze.This commit unexports shmparam.h for those architectures.There is no more reason to export include/uapi/asm-generic/shmparam.h,so it has been moved to include/asm-generic/shmparam.hLink: http://lkml.kernel.org/r/1546904307-11124-1-git-send-email-yamada.masahiro@socionext.comSigned-off-by: Masahiro Yamada Acked-by: Stafford Horne Cc: Geert Uytterhoeven Cc: Michal Simek Cc: Yoshinori Sato Cc: Richard Kuo Cc: Guan Xuetao Cc: Nicolas Dichtel Cc: Arnd Bergmann Cc: Aurelien Jacquiot Cc: Greentime Hu Cc: Guo Ren Cc: Palmer Dabbelt Cc: Stefan Kristiansson Cc: Mark Salter Cc: Albert Ou Cc: Jonas Bonn Cc: Vincent Chen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

005e13a9 - m68k: Generate uapi header and syscall table header files

Tue, 13 Nov 2018 06:00:29 +0000

m68k: Generate uapi header and syscall table header filesSystem call table generation script must be run to gener-ate unistd_32.h and syscall_table.h files. This patch willhave changes which will invokes the script.This patch will generate unistd_32.h and syscall_table.hfiles by the syscall table generation script invoked bym68k/Makefile and the generated files against the removedfiles must be identical.The generated uapi header file will be included in uapi/-asm/unistd.h and generated system call table header filewill be included by kernel/syscalltable.S file.Signed-off-by: Firoz Khan Signed-off-by: Geert Uytterhoeven List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

9eb8be60 - m68k: Use generic dma_noncoherent_ops

Wed, 20 Jun 2018 08:19:45 +0000

m68k: Use generic dma_noncoherent_opsSwitch to the generic noncoherent direct mapping implementation.Signed-off-by: Christoph Hellwig Reviewed-by: Greg Ungerer Tested-by: Greg Ungerer Signed-off-by: Geert Uytterhoeven List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

2b5a9a37 - time: Add an asm-generic/compat.h file

Mon, 26 Mar 2018 14:59:15 +0000

time: Add an asm-generic/compat.h fileWe have a couple of files that try to include asm/compat.h onarchitectures where this is available. Those should generally use thehigher-level linux/compat.h file, but that in turn fails to includeasm/compat.h when CONFIG_COMPAT is disabled, unless we can providethat header on all architectures.This adds the asm/compat.h for all remaining architectures tosimplify the dependencies.Architectures that are getting removed in linux-4.17 are not changedhere, to avoid needless conflicts with the removal patches. Thosearchitectures are broken by this patch, but we have already shownthat they have no users.Signed-off-by: Arnd Bergmann List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

e0af0c16 - arch: Remove clkdev.h asm-generic from Kbuild

Tue, 02 Jan 2018 23:50:06 +0000

arch: Remove clkdev.h asm-generic from KbuildNow that every architecture is using the generic clkdev.h fileand we no longer include asm/clkdev.h anywhere in the tree, wecan remove it.Cc: Russell King Acked-by: Arnd Bergmann Cc: Acked-by: Geert Uytterhoeven [m68k]Signed-off-by: Stephen Boyd List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

5608e72d - m68k: move generic-y of exported headers to uapi/asm/Kbuild

Sun, 09 Jul 2017 18:32:46 +0000

m68k: move generic-y of exported headers to uapi/asm/KbuildSince commit fcc8487d477a ("uapi: export all headers under uapidirectories"), all (and only) headers under uapi directories areexported, but asm-generic wrappers are still exceptions.To complete de-coupling the uapi from kernel headers, move generic-yof exported headers to uapi/asm/Kbuild.With this change, "make headers_install" will just need to parseuapi/asm/Kbuild to build up exported headers.For m68k, "generic-y += termios.h" is doubled in asm/Kbuild anduapi/asm/Kbuild. So, the one in the former can be simply removed.Also, move "generic-y += kprobes.h" up in order to keep the entriessorted.Signed-off-by: Masahiro Yamada Acked-by: Geert Uytterhoeven List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

6bc51cba - signal: Remove non-uapi

Sat, 03 Jun 2017 19:01:02 +0000

signal: Remove non-uapi By moving the kernel side __SI_* defintions right next to the userspaceones we can kill the non-uapi versions of includeinclude/asm-generic/siginfo.h and untangle the unholy mess of includes.[ tglx: Removed uapi/asm/siginfo.h from m32r, microblaze, mn10300 and score ]Signed-off-by: Christoph Hellwig Signed-off-by: Thomas Gleixner Cc: linux-arch@vger.kernel.orgCc: Fenghua Yu Cc: Tony Luck Cc: linux-ia64@vger.kernel.orgCc: Arnd Bergmann Cc: sparclinux@vger.kernel.orgCc: "David S. Miller" Link: http://lkml.kernel.org/r/20170603190102.28866-6-hch@lst.de List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

68acfdcb - m68k: switch to generic extable.h

Sun, 25 Dec 2016 19:33:17 +0000

m68k: switch to generic extable.hSigned-off-by: Al Viro List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

7d134b2c - kprobes: move kprobe declarations to asm-generic/kprobes.h

Mon, 27 Feb 2017 22:26:56 +0000

kprobes: move kprobe declarations to asm-generic/kprobes.hOften all is needed is these small helpers, instead of compiler.h or afull kprobes.h. This is important for asm helpers, in fact even someasm/kprobes.h make use of these helpers... instead just keep a genericasm file with helpers useful for asm code with the least amount ofclutter as possible.Likewise we need now to also address what to do about this file for bothwhen architectures have CONFIG_HAVE_KPROBES, and when they do not. Thenfor when architectures have CONFIG_HAVE_KPROBES but have disabledCONFIG_KPROBES.Right now most asm/kprobes.h do not have guards against CONFIG_KPROBES,this means most architecture code cannot include asm/kprobes.h safely.Correct this and add guards for architectures missing them.Additionally provide architectures that not have kprobes support withthe default asm-generic solution. This lets us force asm/kprobes.h onthe header include/linux/kprobes.h always, but most importantly we cannow safely include just asm/kprobes.h on architecture code withoutbringing the full kitchen sink of header files.Two architectures already provided a guard against CONFIG_KPROBES on itskprobes.h: sh, arch. The rest of the architectures needed gaurds added.We avoid including any not-needed headers on asm/kprobes.h unlesskprobes have been enabled.In a subsequent atomic change we can try now to remove compiler.h frominclude/linux/kprobes.h.During this sweep I've also identified a few architectures defining acommon macro needed for both kprobes and ftrace, that of the definitionof the breakput instruction up. Some refer to this asBREAKPOINT_INSTRUCTION. This must be kept outside of the #ifdefCONFIG_KPROBES guard.[mcgrof@kernel.org: fix arm64 build] Link: http://lkml.kernel.org/r/CAB=NE6X1WMByuARS4mZ1g9+W=LuVBnMDnh_5zyN0CLADaVh=Jw@mail.gmail.com[sfr@canb.auug.org.au: fixup for kprobes declarations moving] Link: http://lkml.kernel.org/r/20170214165933.13ebd4f4@canb.auug.org.auLink: http://lkml.kernel.org/r/20170203233139.32682-1-mcgrof@kernel.orgSigned-off-by: Luis R. Rodriguez Signed-off-by: Stephen Rothwell Acked-by: Masami Hiramatsu Cc: Arnd Bergmann Cc: Masami Hiramatsu Cc: Ananth N Mavinakayanahalli Cc: Anil S Keshavamurthy Cc: David S. Miller Cc: Ingo Molnar Cc: Thomas Gleixner Cc: H. Peter Anvin Cc: Andy Lutomirski Cc: Steven Rostedt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/m68k/include/asm/Kbuild

b672592f - sched/cputime: Remove generic asm headers

Tue, 31 Jan 2017 03:09:51 +0000

sched/cputime: Remove generic asm headerscputime_t is now only used by two architectures: * powerpc (when CONFIG_VIRT_CPU_ACCOUNTING_NATIVE=y) * s390And since the core doesn't use it anymore, we don't need any arch supportfrom the others. So we can remove their stub implementations.A final cleanup would be to provide an efficient pure archimplementation of cputime_to_nsec() for s390 and powerpc and finallyremove include/linux/cputime.h .Signed-off-by: Frederic Weisbecker Cc: Benjamin Herrenschmidt Cc: Fenghua Yu Cc: Heiko Carstens Cc: Linus Torvalds Cc: Martin Schwidefsky Cc: Michael Ellerman Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Rik van Riel Cc: Stanislaw Gruszka Cc: Thomas Gleixner Cc: Tony Luck Cc: Wanpeng Li Link: http://lkml.kernel.org/r/1485832191-26889-36-git-send-email-fweisbec@gmail.comSigned-off-by: Ingo Molnar List of files: /linux-6.15/arch/m68k/include/asm/Kbuild