diff options
Diffstat (limited to 'arch/powerpc/Makefile')
| -rw-r--r-- | arch/powerpc/Makefile | 45 |
1 files changed, 19 insertions, 26 deletions
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 95813df..bd06a3c 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -17,17 +17,18 @@ HAS_BIARCH := $(call cc-option-yn, -m32) # Set default 32 bits cross compilers for vdso and boot wrapper CROSS32_COMPILE ?= -CROSS32CC := $(CROSS32_COMPILE)gcc -CROSS32AR := $(CROSS32_COMPILE)ar - ifeq ($(HAS_BIARCH),y) ifeq ($(CROSS32_COMPILE),) -CROSS32CC := $(CC) -m32 -KBUILD_ARFLAGS += --target=elf32-powerpc +ifdef CONFIG_PPC32 +# These options will be overridden by any -mcpu option that the CPU +# or platform code sets later on the command line, but they are needed +# to set a sane 32-bit cpu target for the 64-bit cross compiler which +# may default to the wrong ISA. +KBUILD_CFLAGS += -mcpu=powerpc +KBUILD_AFLAGS += -mcpu=powerpc +endif endif endif - -export CROSS32CC CROSS32AR ifeq ($(CROSS_COMPILE),) KBUILD_DEFCONFIG := $(shell uname -m)_defconfig @@ -74,13 +75,15 @@ endif endif ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) -override LD += -EL +KBUILD_CFLAGS += -mlittle-endian +LDFLAGS += -EL LDEMULATION := lppc GNUTARGET := powerpcle MULTIPLEWORD := -mno-multiple KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-save-toc-indirect) else -override LD += -EB +KBUILD_CFLAGS += $(call cc-option,-mbig-endian) +LDFLAGS += -EB LDEMULATION := ppc GNUTARGET := powerpc MULTIPLEWORD := -mmultiple @@ -93,19 +96,19 @@ aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1) aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mabi=elfv2 endif -cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mlittle-endian -cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian) ifneq ($(cc-name),clang) cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mno-strict-align endif +cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian) +cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mlittle-endian aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian) aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mlittle-endian ifeq ($(HAS_BIARCH),y) -override AS += -a$(BITS) -override LD += -m elf$(BITS)$(LDEMULATION) -override CC += -m$(BITS) +KBUILD_CFLAGS += -m$(BITS) +KBUILD_AFLAGS += -m$(BITS) -Wl,-a$(BITS) +LDFLAGS += -m elf$(BITS)$(LDEMULATION) KBUILD_ARFLAGS += --target=elf$(BITS)-$(GNUTARGET) endif @@ -158,18 +161,7 @@ CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64 endif ifdef CONFIG_MPROFILE_KERNEL - ifeq ($(shell $(srctree)/arch/powerpc/tools/gcc-check-mprofile-kernel.sh $(CC) -I$(srctree)/include -D__KERNEL__),OK) - CC_FLAGS_FTRACE := -pg -mprofile-kernel - KBUILD_CPPFLAGS += -DCC_USING_MPROFILE_KERNEL - else - # If the user asked for mprofile-kernel but the toolchain doesn't - # support it, emit a warning and deliberately break the build later - # with mprofile-kernel-not-supported. We would prefer to make this an - # error right here, but then the user would never be able to run - # oldconfig to change their configuration. - $(warning Compiler does not support mprofile-kernel, set CONFIG_DISABLE_MPROFILE_KERNEL) - CC_FLAGS_FTRACE := -mprofile-kernel-not-supported - endif + CC_FLAGS_FTRACE := -pg -mprofile-kernel endif CFLAGS-$(CONFIG_CELL_CPU) += $(call cc-option,-mcpu=cell) @@ -178,6 +170,7 @@ CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6) CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7) CFLAGS-$(CONFIG_POWER8_CPU) += $(call cc-option,-mcpu=power8) CFLAGS-$(CONFIG_POWER9_CPU) += $(call cc-option,-mcpu=power9) +CFLAGS-$(CONFIG_PPC_8xx) += $(call cc-option,-mcpu=860) # Altivec option not allowed with e500mc64 in GCC. ifeq ($(CONFIG_ALTIVEC),y) |
