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| author | Masahiro Yamada <masahiroy@kernel.org> | 2020-04-25 03:59:23 +0900 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-04-27 21:16:59 +0200 |
| commit | 1616d46052efae72587fb6da5f4fd117f91ce6f8 (patch) | |
| tree | e95c9db97d390a7ccd8b616c8ed1d65066dff066 /scripts/Makefile.build | |
| parent | 6ad4f5fe1b225eaa0f7e42839a6ee98fa15ff925 (diff) | |
| download | barebox-1616d46052efae72587fb6da5f4fd117f91ce6f8.tar.gz barebox-1616d46052efae72587fb6da5f4fd117f91ce6f8.tar.xz | |
kbuild: use $(SRCARCH) to point to the arch directory
A couple of arch directories in Linux are biarch, that is, a single
arch/*/ directory supports both 32-bit and 64-bit.
In old days of Linux, they started as separated directories.
arm/arm64 is the exceptional case, but the other architectures were
unified.
e.g.)
arch/i386, arch/x86_64 -> arch/x86
arch/sh, arch/sh64 -> arch/sh
arch/sparc, arch/sparc64 -> arch/sparc
Linux commit 6752ed90da03 ("Kbuild: allow arch/xxx to use a different
source path") introduced SRCARCH to point to the arch directory, still
allowing to pass in the former ARCH=i386 or ARCH=x86_64.
The top Makefile in Linux converts ARCH to SRCARCH as follows:
# Additional ARCH settings for x86
ifeq ($(ARCH),i386)
SRCARCH := x86
endif
ifeq ($(ARCH),x86_64)
SRCARCH := x86
endif
So, if you follow the upstream Kbuild convention, using arch/$(SRCARCH)
is the correct way to point to the arch directory.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'scripts/Makefile.build')
| -rw-r--r-- | scripts/Makefile.build | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 601a4d9cd7..57c9467691 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -175,7 +175,7 @@ cmd_modversions = \ if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \ $(CPP) -D__GENKSYMS__ $(c_flags) $< \ | $(GENKSYMS) $(if $(KBUILD_SYMTYPES), \ - -T $(@D)/$(@F:.o=.symtypes)) -a $(ARCH) \ + -T $(@D)/$(@F:.o=.symtypes)) \ > $(@D)/.tmp_$(@F:.o=.ver); \ \ $(LD) $(KBUILD_LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \ |