Commit c8db32c8 authored by Catalin Udma's avatar Catalin Udma Committed by Scott Wood
Browse files

powerpc/e500: Update compilation flags with core specific options 



If CONFIG_E500 is enabled, the compilation flags are updated
specifying the target core -mcpu=e5500/e500mc/8540
Also remove -Wa,-me500, being incompatible with -mcpu=e5500/e6500
The assembler option is redundant if the -mcpu= flag is set.
The patch fixes the kernel compilation problem for e5500/e6500
when using gcc option -mcpu=e5500/e6500.

Signed-off-by: default avatarCatalin Udma <catalin.udma@freescale.com>
Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
parent dcbe39fe

arch/powerpc/Makefile

+16 −2
Original line number Diff line number Diff line
@@ -98,7 +98,7 @@ CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7) 
CFLAGS-$(CONFIG_TUNE_CELL) += $(call cc-option,-mtune=cell)



KBUILD_CPPFLAGS	+= -Iarch/$(ARCH)

KBUILD_AFLAGS	+= -Iarch/$(ARCH)

KBUILD_AFLAGS	+= -msoft-float -Iarch/$(ARCH)

KBUILD_CFLAGS	+= -msoft-float -pipe -Iarch/$(ARCH) $(CFLAGS-y)

CPP		= $(CC) -E $(KBUILD_CFLAGS)
@@ -132,6 +132,21 @@ ifeq ($(CONFIG_6xx),y) 
KBUILD_CFLAGS		+= -mcpu=powerpc

endif



ifeq ($(CONFIG_E500),y)

ifeq ($(CONFIG_64BIT),y)

KBUILD_CFLAGS		+= -mcpu=e5500

KBUILD_AFLAGS		+= -mcpu=e5500

else

ifeq ($(CONFIG_PPC_E500MC),y)

KBUILD_CFLAGS		+= -mcpu=e500mc

KBUILD_AFLAGS		+= -mcpu=e500mc

else

KBUILD_CFLAGS		+= -mcpu=8540

KBUILD_AFLAGS		+= -mcpu=8540

endif

endif

endif



# Work around a gcc code-gen bug with -fno-omit-frame-pointer.

ifeq ($(CONFIG_FUNCTION_TRACER),y)

KBUILD_CFLAGS		+= -mno-sched-epilog
@@ -139,7 +154,6 @@ endif 


cpu-as-$(CONFIG_4xx)		+= -Wa,-m405

cpu-as-$(CONFIG_ALTIVEC)	+= -Wa,-maltivec

cpu-as-$(CONFIG_E500)		+= -Wa,-me500

cpu-as-$(CONFIG_E200)		+= -Wa,-me200



KBUILD_AFLAGS += $(cpu-as-y)

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