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powerpc: Build little endian ppc64 kernel with ABIv2

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Build the little endian ppc64 kernel with ABIv2 if the toolchain
supports it. We can identify an ABIv2 capable toolchain by the
-mabi=elfv2 compiler flag.

Signed-off-by: Anton Blanchard <anton@samba.org>
This commit is contained in:
Anton Blanchard 2014-03-10 21:06:12 +11:00
parent 24a1bdc358
commit 721aeaa9fd
1 changed files with 7 additions and 3 deletions
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10
arch/powerpc/Makefile
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@ -113,9 +113,13 @@ else
endif endif
endif endif
CFLAGS-$(CONFIG_PPC64) := -mtraceback=no -mcall-aixdesc CFLAGS-$(CONFIG_PPC64) := -mtraceback=no
CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1) ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1) CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,-mcall-aixdesc)
AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2)
else
CFLAGS-$(CONFIG_PPC64) += -mcall-aixdesc
endif
CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,-mminimal-toc) CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,-mminimal-toc)
CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions) CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions)
CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 $(MULTIPLEWORD) CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 $(MULTIPLEWORD)