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| author | Sam Ravnborg <sam@neptun.(none)> | 2007-10-14 16:21:35 -0400 |
|---|---|---|
| committer | Sam Ravnborg <sam@neptun.(none)> | 2007-10-14 16:21:35 -0400 |
| commit | a0f97e06a43cf524e616f09e6af3398e1e9c1c5b (patch) | |
| tree | 2503b24bdbc144aea9ea5bde6ead94b3406eaf98 /arch/blackfin | |
| 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/blackfin')
| -rw-r--r-- | arch/blackfin/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile index 20841663270f..52a6ac072851 100644 --- a/arch/blackfin/Makefile +++ b/arch/blackfin/Makefile | |||
| @@ -53,7 +53,7 @@ rev-$(CONFIG_BF_REV_0_5) := 0.5 | |||
| 53 | rev-$(CONFIG_BF_REV_NONE) := none | 53 | rev-$(CONFIG_BF_REV_NONE) := none |
| 54 | rev-$(CONFIG_BF_REV_ANY) := any | 54 | rev-$(CONFIG_BF_REV_ANY) := any |
| 55 | 55 | ||
| 56 | CFLAGS += -mcpu=$(cpu-y)-$(rev-y) | 56 | KBUILD_CFLAGS += -mcpu=$(cpu-y)-$(rev-y) |
| 57 | AFLAGS += -mcpu=$(cpu-y)-$(rev-y) | 57 | AFLAGS += -mcpu=$(cpu-y)-$(rev-y) |
| 58 | 58 | ||
| 59 | head-y := arch/$(ARCH)/mach-$(MACHINE)/head.o arch/$(ARCH)/kernel/init_task.o | 59 | head-y := arch/$(ARCH)/mach-$(MACHINE)/head.o arch/$(ARCH)/kernel/init_task.o |