From a0f97e06a43cf524e616f09e6af3398e1e9c1c5b Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sun, 14 Oct 2007 22:21:35 +0200 Subject: 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 --- arch/sparc/Makefile | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/sparc/Makefile') diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile index f33c3817f014..2ce781a7cbf0 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 -- cgit v1.2.3-59-g8ed1b