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| author | Sam Ravnborg <sam@neptun.(none)> | 2007-10-14 22:21:35 +0200 |
|---|---|---|
| committer | Sam Ravnborg <sam@neptun.(none)> | 2007-10-14 22:21:35 +0200 |
| commit | a0f97e06a43cf524e616f09e6af3398e1e9c1c5b (patch) | |
| tree | 2503b24bdbc144aea9ea5bde6ead94b3406eaf98 /arch/x86/vdso | |
| parent | kbuild: fix up CFLAGS usage (diff) | |
| download | linux-a0f97e06a43cf524e616f09e6af3398e1e9c1c5b.tar.xz linux-a0f97e06a43cf524e616f09e6af3398e1e9c1c5b.zip | |
kbuild: enable 'make CFLAGS=...' to add additional options to CC
The variable CFLAGS is a wellknown variable and the usage by
kbuild may result in unexpected behaviour.
On top of that several people over time has asked for a way to
pass in additional flags to gcc.
This patch replace use of CFLAGS with KBUILD_CFLAGS all over the
tree and enabling one to use:
make CFLAGS=...
to specify additional gcc commandline options.
One usecase is when trying to find gcc bugs but other
use cases has been requested too.
Patch was tested on following architectures:
alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k
Test was simple to do a defconfig build, apply the patch and check
that nothing got rebuild.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'arch/x86/vdso')
| -rw-r--r-- | arch/x86/vdso/Makefile | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile index 8d03de029d9b..dcd6bb9e0bb3 100644 --- a/arch/x86/vdso/Makefile +++ b/arch/x86/vdso/Makefile @@ -34,8 +34,8 @@ $(obj)/vdso.so: $(src)/vdso.lds $(vobjs) FORCE CFL := $(PROFILING) -mcmodel=small -fPIC -g0 -O2 -fasynchronous-unwind-tables -m64 -$(obj)/vclock_gettime.o: CFLAGS = $(CFL) -$(obj)/vgetcpu.o: CFLAGS = $(CFL) +$(obj)/vclock_gettime.o: KBUILD_CFLAGS = $(CFL) +$(obj)/vgetcpu.o: KBUILD_CFLAGS = $(CFL) # We also create a special relocatable object that should mirror the symbol # table and layout of the linked DSO. With ld -R we can then refer to |