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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/sparc/Makefile | |
| parent | 9a39e273d4df0560c724c5fe71f6314a0583ca2b (diff) | |
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/sparc/Makefile')
| -rw-r--r-- | arch/sparc/Makefile | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile index f33c3817f01..2ce781a7cbf 100644 --- a/arch/sparc/Makefile +++ b/arch/sparc/Makefile @@ -8,15 +8,15 @@ # # -# Uncomment the first CFLAGS if you are doing kgdb source level +# Uncomment the first KBUILD_CFLAGS if you are doing kgdb source level # debugging of the kernel to get the proper debugging information. AS := $(AS) -32 LDFLAGS := -m elf32_sparc CHECKFLAGS += -D__sparc__ -#CFLAGS := $(CFLAGS) -g -pipe -fcall-used-g5 -fcall-used-g7 -CFLAGS := $(CFLAGS) -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7 +#KBUILD_CFLAGS += -g -pipe -fcall-used-g5 -fcall-used-g7 +KBUILD_CFLAGS += -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7 AFLAGS := $(AFLAGS) -m32 #LDFLAGS_vmlinux = -N -Ttext 0xf0004000 |