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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/h8300/Makefile | |
| parent | 9a39e273d4df0560c724c5fe71f6314a0583ca2b (diff) | |
| download | lwn-a0f97e06a43cf524e616f09e6af3398e1e9c1c5b.tar.gz lwn-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/h8300/Makefile')
| -rw-r--r-- | arch/h8300/Makefile | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/h8300/Makefile b/arch/h8300/Makefile index 53b5c1edf596..330e05f28f90 100644 --- a/arch/h8300/Makefile +++ b/arch/h8300/Makefile @@ -30,16 +30,16 @@ ldflags-$(CONFIG_CPU_H8300H) := -mh8300helf cflags-$(CONFIG_CPU_H8S) := -ms ldflags-$(CONFIG_CPU_H8S) := -mh8300self -CFLAGS += $(cflags-y) -CFLAGS += -mint32 -fno-builtin -CFLAGS += -g -CFLAGS += -D__linux__ -CFLAGS += -DUTS_SYSNAME=\"uClinux\" +KBUILD_CFLAGS += $(cflags-y) +KBUILD_CFLAGS += -mint32 -fno-builtin +KBUILD_CFLAGS += -g +KBUILD_CFLAGS += -D__linux__ +KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\" AFLAGS += -DPLATFORM=$(PLATFORM) -DMODEL=$(MODEL) $(cflags-y) LDFLAGS += $(ldflags-y) CROSS_COMPILE = h8300-elf- -LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(CFLAGS) -print-libgcc-file-name) +LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) head-y := arch/$(ARCH)/platform/$(PLATFORM)/$(BOARD)/crt0_$(MODEL).o |