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/mips/Makefile | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/mips/Makefile') diff --git a/arch/mips/Makefile b/arch/mips/Makefile index ebd5d02..64512ab 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -609,13 +609,13 @@ ifdef CONFIG_64BIT endif AFLAGS += $(cflags-y) -CFLAGS += $(cflags-y) \ +KBUILD_CFLAGS += $(cflags-y) \ -D"VMLINUX_LOAD_ADDRESS=$(load-y)" LDFLAGS += -m $(ld-emul) ifdef CONFIG_MIPS -CHECKFLAGS += $(shell $(CC) $(CFLAGS) -dM -E -xc /dev/null | \ +CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -xc /dev/null | \ egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \ sed -e 's/^\#define /-D/' -e "s/ /='/" -e "s/$$/'/") ifdef CONFIG_64BIT @@ -632,7 +632,7 @@ OBJCOPYFLAGS += --remove-section=.reginfo # CPPFLAGS_vmlinux.lds := \ - $(CFLAGS) \ + $(KBUILD_CFLAGS) \ -D"LOADADDR=$(load-y)" \ -D"JIFFIES=$(JIFFIES)" \ -D"DATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)" -- cgit v1.1