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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/alpha | |
| parent | 9a39e273d4df0560c724c5fe71f6314a0583ca2b (diff) | |
| download | linux-a0f97e06a43cf524e616f09e6af3398e1e9c1c5b.tar.gz linux-a0f97e06a43cf524e616f09e6af3398e1e9c1c5b.tar.bz2 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/alpha')
| -rw-r--r-- | arch/alpha/Makefile | 2 | ||||
| -rw-r--r-- | arch/alpha/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/alpha/lib/Makefile | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile index 1b704ee54bf3..2f283b2fb164 100644 --- a/arch/alpha/Makefile +++ b/arch/alpha/Makefile @@ -84,7 +84,7 @@ endif # For TSUNAMI, we must have the assembler not emulate our instructions. # The same is true for IRONGATE, POLARIS, PYXIS. # BWX is most important, but we don't really want any emulation ever. -CFLAGS += $(cflags-y) -Wa,-mev6 +KBUILD_CFLAGS += $(cflags-y) -Wa,-mev6 head-y := arch/alpha/kernel/head.o diff --git a/arch/alpha/kernel/Makefile b/arch/alpha/kernel/Makefile index ab6fa54b3860..dccf05245d4d 100644 --- a/arch/alpha/kernel/Makefile +++ b/arch/alpha/kernel/Makefile @@ -3,7 +3,7 @@ # extra-y := head.o vmlinux.lds -EXTRA_AFLAGS := $(CFLAGS) +EXTRA_AFLAGS := $(KBUILD_CFLAGS) EXTRA_CFLAGS := -Werror -Wno-sign-compare obj-y := entry.o traps.o process.o init_task.o osf_sys.o irq.o \ diff --git a/arch/alpha/lib/Makefile b/arch/alpha/lib/Makefile index 266f78e13076..9b72c59c95be 100644 --- a/arch/alpha/lib/Makefile +++ b/arch/alpha/lib/Makefile @@ -2,7 +2,7 @@ # Makefile for alpha-specific library files.. # -EXTRA_AFLAGS := $(CFLAGS) +EXTRA_AFLAGS := $(KBUILD_CFLAGS) EXTRA_CFLAGS := -Werror # Many of these routines have implementations tuned for ev6. |