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authorSam Ravnborg <sam@neptun.(none)>2007-10-14 22:21:35 +0200
committerSam Ravnborg <sam@neptun.(none)>2007-10-14 22:21:35 +0200
commita0f97e06a43cf524e616f09e6af3398e1e9c1c5b (patch)
tree2503b24bdbc144aea9ea5bde6ead94b3406eaf98 /arch/s390/Makefile
parent9a39e273d4df0560c724c5fe71f6314a0583ca2b (diff)
downloadlinux-linaro-android-a0f97e06a43cf524e616f09e6af3398e1e9c1c5b.tar.gz
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/s390/Makefile')
-rw-r--r--arch/s390/Makefile8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index 143ed8e154a..62a0da42c7f 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -15,7 +15,7 @@
ifndef CONFIG_64BIT
LDFLAGS := -m elf_s390
-CFLAGS += -m31
+KBUILD_CFLAGS += -m31
AFLAGS += -m31
UTS_MACHINE := s390
STACK_SIZE := 8192
@@ -23,7 +23,7 @@ CHECKFLAGS += -D__s390__ -msize-long
else
LDFLAGS := -m elf64_s390
MODFLAGS += -fpic -D__PIC__
-CFLAGS += -m64
+KBUILD_CFLAGS += -m64
AFLAGS += -m64
UTS_MACHINE := s390x
STACK_SIZE := 16384
@@ -77,8 +77,8 @@ cflags-$(CONFIG_WARN_STACK) += -mwarn-dynamicstack
cflags-$(CONFIG_WARN_STACK) += -mwarn-framesize=$(CONFIG_WARN_STACK_SIZE)
endif
-CFLAGS += -mbackchain -msoft-float $(cflags-y)
-CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare
+KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y)
+KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare
AFLAGS += $(aflags-y)
OBJCOPYFLAGS := -O binary