[PATCH 2/6] powerpc: Only use -mabi=altivec if toolchain supports it
From: Anton Blanchard <hidden>
Date: 2015-05-25 22:53:39
Subsystem:
library code, linux for powerpc (32-bit and 64-bit), software raid (multiple disks) support, the rest · Maintainers:
Andrew Morton, Madhavan Srinivasan, Michael Ellerman, Song Liu, Yu Kuai, Linus Torvalds
The -mabi=altivec option is not recognised on LLVM, so use call cc-option to check for support. Signed-off-by: Anton Blanchard <redacted> --- arch/powerpc/lib/Makefile | 2 +- lib/raid6/Makefile | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 7902802..a47e142 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile@@ -33,6 +33,6 @@ obj-$(CONFIG_PPC_LIB_RHEAP) += rheap.o obj-$(CONFIG_FTR_FIXUP_SELFTEST) += feature-fixups-test.o obj-$(CONFIG_ALTIVEC) += xor_vmx.o -CFLAGS_xor_vmx.o += -maltivec -mabi=altivec +CFLAGS_xor_vmx.o += -maltivec $(call cc-option,-mabi=altivec) obj-$(CONFIG_PPC64) += $(obj64-y)
diff --git a/lib/raid6/Makefile b/lib/raid6/Makefile
index c7dab06..3b10a48 100644
--- a/lib/raid6/Makefile
+++ b/lib/raid6/Makefile@@ -15,7 +15,7 @@ quiet_cmd_unroll = UNROLL $@ < $< > $@ || ( rm -f $@ && exit 1 ) ifeq ($(CONFIG_ALTIVEC),y) -altivec_flags := -maltivec -mabi=altivec +altivec_flags := -maltivec $(call cc-option,-mabi=altivec) endif # The GCC option -ffreestanding is required in order to compile code containing
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2.1.4