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/sh64/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/sh64/Makefile') diff --git a/arch/sh64/Makefile b/arch/sh64/Makefile index ebf20043991..9e874de0a09 100644 --- a/arch/sh64/Makefile +++ b/arch/sh64/Makefile @@ -26,7 +26,7 @@ LDFLAGS += -EB -mshelf32_linux endif # No requirements for endianess support from AFLAGS, 'as' always run through gcc -CFLAGS += $(cpu-y) +KBUILD_CFLAGS += $(cpu-y) LDFLAGS_vmlinux += --defsym phys_stext=_stext-$(CONFIG_CACHED_MEMORY_OFFSET) \ --defsym phys_stext_shmedia=phys_stext+1 \ @@ -57,7 +57,7 @@ ifneq ($(machine-y),) core-y += arch/sh64/mach-$(machine-y)/ endif -LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name) +LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) libs-y += arch/$(ARCH)/lib/ $(LIBGCC) drivers-$(CONFIG_OPROFILE) += arch/sh64/oprofile/ -- cgit v1.2.3