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/v850/Makefile | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/v850') diff --git a/arch/v850/Makefile b/arch/v850/Makefile index 8be9aacb20a7..8b629df0029a 100644 --- a/arch/v850/Makefile +++ b/arch/v850/Makefile @@ -16,11 +16,11 @@ arch_dir = arch/v850 -CFLAGS += -mv850e +KBUILD_CFLAGS += -mv850e # r16 is a fixed pointer to the current task -CFLAGS += -ffixed-r16 -mno-prolog-function -CFLAGS += -fno-builtin -CFLAGS += -D__linux__ -DUTS_SYSNAME=\"uClinux\" +KBUILD_CFLAGS += -ffixed-r16 -mno-prolog-function +KBUILD_CFLAGS += -fno-builtin +KBUILD_CFLAGS += -D__linux__ -DUTS_SYSNAME=\"uClinux\" # By default, build a kernel that runs on the gdb v850 simulator. KBUILD_DEFCONFIG := sim_defconfig -- cgit v1.2.3-59-g8ed1b