diff options
| author | Anton Blanchard <anton@samba.org> | 2015-05-26 08:53:27 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-06-11 17:33:05 +1000 |
| commit | a50a862e74a9d7b447df30c33aa3d534ce3a977a (patch) | |
| tree | 769397972aeb27f5da90eafd5414d4ceb72872da /arch/powerpc/Makefile | |
| parent | 1fb3f5a7ca599f322e6bf21272ad215301159aa0 (diff) | |
| download | lwn-a50a862e74a9d7b447df30c33aa3d534ce3a977a.tar.gz lwn-a50a862e74a9d7b447df30c33aa3d534ce3a977a.zip | |
powerpc: Only use -mtraceback=no, -mno-string and -msoft-float if toolchain supports it
These options are not recognised on LLVM, so use call cc-option to check
for support.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/Makefile')
| -rw-r--r-- | arch/powerpc/Makefile | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index edf39cebfed8..799e67d54c4d 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -113,7 +113,7 @@ else endif endif -CFLAGS-$(CONFIG_PPC64) := -mtraceback=no +CFLAGS-$(CONFIG_PPC64) := $(call cc-option,-mtraceback=no) ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,-mcall-aixdesc) AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2) @@ -160,7 +160,8 @@ asinstr := $(call as-instr,lis 9$(comma)foo@high,-DHAVE_AS_ATHIGH=1) KBUILD_CPPFLAGS += -Iarch/$(ARCH) $(asinstr) KBUILD_AFLAGS += -Iarch/$(ARCH) $(AFLAGS-y) -KBUILD_CFLAGS += -msoft-float -pipe -Iarch/$(ARCH) $(CFLAGS-y) +KBUILD_CFLAGS += $(call cc-option,-msoft-float) +KBUILD_CFLAGS += -pipe -Iarch/$(ARCH) $(CFLAGS-y) CPP = $(CC) -E $(KBUILD_CFLAGS) CHECKFLAGS += -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__ @@ -192,7 +193,7 @@ KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) # Never use string load/store instructions as they are # often slow when they are implemented at all -KBUILD_CFLAGS += -mno-string +KBUILD_CFLAGS += $(call cc-option,-mno-string) ifeq ($(CONFIG_6xx),y) KBUILD_CFLAGS += -mcpu=powerpc |