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authorSam Ravnborg <sam@neptun.(none)>2007-10-14 16:21:35 -0400
committerSam Ravnborg <sam@neptun.(none)>2007-10-14 16:21:35 -0400
commita0f97e06a43cf524e616f09e6af3398e1e9c1c5b (patch)
tree2503b24bdbc144aea9ea5bde6ead94b3406eaf98 /arch/s390/Makefile
parent9a39e273d4df0560c724c5fe71f6314a0583ca2b (diff)
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 143ed8e154af..62a0da42c7fd 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -15,7 +15,7 @@
15 15
16ifndef CONFIG_64BIT 16ifndef CONFIG_64BIT
17LDFLAGS := -m elf_s390 17LDFLAGS := -m elf_s390
18CFLAGS += -m31 18KBUILD_CFLAGS += -m31
19AFLAGS += -m31 19AFLAGS += -m31
20UTS_MACHINE := s390 20UTS_MACHINE := s390
21STACK_SIZE := 8192 21STACK_SIZE := 8192
@@ -23,7 +23,7 @@ CHECKFLAGS += -D__s390__ -msize-long
23else 23else
24LDFLAGS := -m elf64_s390 24LDFLAGS := -m elf64_s390
25MODFLAGS += -fpic -D__PIC__ 25MODFLAGS += -fpic -D__PIC__
26CFLAGS += -m64 26KBUILD_CFLAGS += -m64
27AFLAGS += -m64 27AFLAGS += -m64
28UTS_MACHINE := s390x 28UTS_MACHINE := s390x
29STACK_SIZE := 16384 29STACK_SIZE := 16384
@@ -77,8 +77,8 @@ cflags-$(CONFIG_WARN_STACK) += -mwarn-dynamicstack
77cflags-$(CONFIG_WARN_STACK) += -mwarn-framesize=$(CONFIG_WARN_STACK_SIZE) 77cflags-$(CONFIG_WARN_STACK) += -mwarn-framesize=$(CONFIG_WARN_STACK_SIZE)
78endif 78endif
79 79
80CFLAGS += -mbackchain -msoft-float $(cflags-y) 80KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y)
81CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare 81KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare
82AFLAGS += $(aflags-y) 82AFLAGS += $(aflags-y)
83 83
84OBJCOPYFLAGS := -O binary 84OBJCOPYFLAGS := -O binary