kernel/git/stable/linux-stable.git/arch/m68k/Makefile, branch linux-5.14.y

Merge tag 'kbuild-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2021-07-10T18:01:38+00:00

Pull Kbuild updates from Masahiro Yamada: - Increase the -falign-functions alignment for the debug option. - Remove ugly libelf checks from the top Makefile. - Make the silent build (-s) more silent. - Re-compile the kernel if KBUILD_BUILD_TIMESTAMP is specified. - Various script cleanups * tag 'kbuild-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (27 commits) scripts: add generic syscallnr.sh scripts: check duplicated syscall number in syscall table sparc: syscalls: use pattern rules to generate syscall headers parisc: syscalls: use pattern rules to generate syscall headers nds32: add arch/nds32/boot/.gitignore kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set kbuild: modpost: Explicitly warn about unprototyped symbols kbuild: remove trailing slashes from $(KBUILD_EXTMOD) kconfig.h: explain IS_MODULE(), IS_ENABLED() kconfig: constify long_opts scripts/setlocalversion: simplify the short version part scripts/setlocalversion: factor out 12-chars hash construction scripts/setlocalversion: add more comments to -dirty flag detection scripts/setlocalversion: remove workaround for old make-kpkg scripts/setlocalversion: remove mercurial, svn and git-svn supports kbuild: clean up ${quiet} checks in shell scripts kbuild: sink stdout from cmd for silent build init: use $(call cmd,) for generating include/generated/compile.h kbuild: merge scripts/mkmakefile to top Makefile sh: move core-y in arch/sh/Makefile to arch/sh/Kbuild ...

kbuild: require all architectures to have arch/$(SRCARCH)/Kbuild

2021-05-26T14:10:37+00:00

arch/$(SRCARCH)/Kbuild is useful for Makefile cleanups because you can use the obj-y syntax. Add an empty file if it is missing in arch/$(SRCARCH)/. Signed-off-by: Masahiro Yamada

m68k: Drop -fno-strength-reduce from KBUILD_CFLAGS

2021-05-10T09:46:59+00:00

This workaround became redundant either when the driver in question was removed (in Linux v2.6.23) or when the compiler flag became a no-op (in GCC v4.2). Linux has required GCC v4.6 or later since v4.19. Link: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=efa1cdf01850b28c2f6f7035ebd4420259494615 References: commit 565bae6a4a8f ("[SCSI] 53c7xx: kill driver") References: commit cafa0010cd51 ("Raise the minimum required gcc version to 4.6") Signed-off-by: Finn Thain Link: https://lore.kernel.org/r/baa95d7235921dff23bed6320518f3fa90396603.1612681353.git.fthain@telegraphics.com.au Signed-off-by: Geert Uytterhoeven

arch: use cross_compiling to check whether it is a cross build or not

2021-05-05T16:49:13+00:00

'cross_compiling' is defined by the top Makefile and available for arch Makefiles to check whether it is a cross build or not. A good thing is the variable name 'cross_compiling' is self-documenting. This is a simple replacement for m68k, mips, sh, for which $(ARCH) and $(SRCARCH) always match. No functional change is intended for xtensa, either. This is rather a fix for parisc because arch/parisc/Makefile defines UTS_MATCHINE depending on CONFIG_64BIT, therefore cc-cross-prefix is not working in Kconfig time. Signed-off-by: Masahiro Yamada Acked-by: Geert Uytterhoeven Acked-by: Helge Deller # parisc Acked-by: Max Filippov # xtensa

kbuild: preprocess module linker script

2020-09-24T15:36:41+00:00

There was a request to preprocess the module linker script like we do for the vmlinux one. (https://lkml.org/lkml/2020/8/21/512) The difference between vmlinux.lds and module.lds is that the latter is needed for external module builds, thus must be cleaned up by 'make mrproper' instead of 'make clean'. Also, it must be created by 'make modules_prepare'. You cannot put it in arch/$(SRCARCH)/kernel/, which is cleaned up by 'make clean'. I moved arch/$(SRCARCH)/kernel/module.lds to arch/$(SRCARCH)/include/asm/module.lds.h, which is included from scripts/module.lds.S. scripts/module.lds is fine because 'make clean' keeps all the build artifacts under scripts/. You can add arch-specific sections in . Signed-off-by: Masahiro Yamada Tested-by: Jessica Yu Acked-by: Will Deacon Acked-by: Geert Uytterhoeven Acked-by: Palmer Dabbelt Reviewed-by: Kees Cook Acked-by: Jessica Yu

m68k: Use CLEAN_FILES to clean up files

2020-07-13T09:39:13+00:00

The log of 'make ARCH=m68k clean' does not look nice. $ make ARCH=m68k clean CLEAN arch/m68k/kernel [ snip ] CLEAN usr rm -f vmlinux.gz vmlinux.bz2 CLEAN vmlinux.symvers modules.builtin modules.builtin.modinfo Use CLEAN_FILES to simplify the code, and beautify the log. Signed-off-by: Masahiro Yamada Link: https://lore.kernel.org/r/20200617031153.85858-1-masahiroy@kernel.org Signed-off-by: Geert Uytterhoeven

m68k: Pass -D options to KBUILD_CPPFLAGS instead of KBUILD_{A,C}FLAGS

2020-07-13T09:39:13+00:00

Precisely, -D is a preprocessor option. KBUILD_CPPFLAGS is passed for compiling .c and .S files too. Signed-off-by: Masahiro Yamada Acked-by: Greg Ungerer Link: https://lore.kernel.org/r/20200526123810.301667-4-masahiroy@kernel.org Signed-off-by: Geert Uytterhoeven

m68k: Optimize cc-option calls for cpuflags-y

2020-07-13T09:39:13+00:00

arch/m68k/Makefile computes lots of unneeded cc-option calls. For example, if CONFIG_M5441x is not defined, there is not point in evaluating the following compiler flag. cpuflags-$(CONFIG_M5441x) := $(call cc-option,-mcpu=54455,-mcfv4e) The result is set to cpuflags-, then thrown away. The right hand side of ':=' is immediately expanded. Hence, all of the 16 calls for cc-option are evaluated. This is expensive since cc-option invokes the compiler. This occurs even if you are not attempting to build anything, like 'make ARCH=m68k help'. Use '=' to expand the value _lazily_. The evaluation for cc-option is delayed until $(cpuflags-y) is expanded. So, the cc-option test happens just once at most. This commit mimics tune-y of arch/arm/Makefile. Signed-off-by: Masahiro Yamada Acked-by: Greg Ungerer Link: https://lore.kernel.org/r/20200526123810.301667-3-masahiroy@kernel.org Signed-off-by: Geert Uytterhoeven

m68k: Add arch/m68k/Kbuild

2020-07-13T09:39:12+00:00

Use the standard obj-y form to specify the sub-directories under arch/m68k/. No functional change intended. Signed-off-by: Masahiro Yamada Acked-by: Greg Ungerer Link: https://lore.kernel.org/r/20200526123810.301667-1-masahiroy@kernel.org Signed-off-by: Geert Uytterhoeven

kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables

2020-06-11T11:14:41+00:00

Redefine GZIP, BZIP2, LZOP variables as KGZIP, KBZIP2, KLZOP resp. GZIP, BZIP2, LZOP env variables are reserved by the tools. The original attempt to redefine them internally doesn't work in makefiles/scripts intercall scenarios, e.g., "make GZIP=gzip bindeb-pkg" and results in broken builds. There can be other broken build commands because of this, so the universal solution is to use non-reserved env variables for the compression tools. Fixes: 8dfb61dcbace ("kbuild: add variables for compression tools") Signed-off-by: Denis Efremov Tested-by: Guenter Roeck Signed-off-by: Masahiro Yamada