diff options
Diffstat (limited to 'arch/arm/Makefile')
| -rw-r--r-- | arch/arm/Makefile | 81 |
1 files changed, 45 insertions, 36 deletions
diff --git a/arch/arm/Makefile b/arch/arm/Makefile index c846119c448f..4067f5169144 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -60,47 +60,54 @@ endif KBUILD_CFLAGS += $(call cc-option,-fno-ipa-sra) # This selects which instruction set is used. +arch-$(CONFIG_CPU_32v7M) :=-march=armv7-m +arch-$(CONFIG_CPU_32v7) :=-march=armv7-a +arch-$(CONFIG_CPU_32v6) :=-march=armv6 +# Only override the compiler option if ARMv6. The ARMv6K extensions are +# always available in ARMv7 +ifeq ($(CONFIG_CPU_32v6),y) +arch-$(CONFIG_CPU_32v6K) :=-march=armv6k +endif +arch-$(CONFIG_CPU_32v5) :=-march=armv5te +arch-$(CONFIG_CPU_32v4T) :=-march=armv4t +arch-$(CONFIG_CPU_32v4) :=-march=armv4 +arch-$(CONFIG_CPU_32v3) :=-march=armv3m + # Note that GCC does not numerically define an architecture version # macro, but instead defines a whole series of macros which makes # testing for a specific architecture or later rather impossible. -arch-$(CONFIG_CPU_32v7M) =-D__LINUX_ARM_ARCH__=7 -march=armv7-m -arch-$(CONFIG_CPU_32v7) =-D__LINUX_ARM_ARCH__=7 -march=armv7-a -arch-$(CONFIG_CPU_32v6) =-D__LINUX_ARM_ARCH__=6 -march=armv6 +cpp-$(CONFIG_CPU_32v7M) :=-D__LINUX_ARM_ARCH__=7 +cpp-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 +cpp-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 # Only override the compiler option if ARMv6. The ARMv6K extensions are # always available in ARMv7 ifeq ($(CONFIG_CPU_32v6),y) -arch-$(CONFIG_CPU_32v6K) =-D__LINUX_ARM_ARCH__=6 -march=armv6k +cpp-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 endif -arch-$(CONFIG_CPU_32v5) =-D__LINUX_ARM_ARCH__=5 -march=armv5te -arch-$(CONFIG_CPU_32v4T) =-D__LINUX_ARM_ARCH__=4 -march=armv4t -arch-$(CONFIG_CPU_32v4) =-D__LINUX_ARM_ARCH__=4 -march=armv4 -arch-$(CONFIG_CPU_32v3) =-D__LINUX_ARM_ARCH__=3 -march=armv3m - -# Evaluate arch cc-option calls now -arch-y := $(arch-y) +cpp-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 +cpp-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 +cpp-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 +cpp-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 # This selects how we optimise for the processor. -tune-$(CONFIG_CPU_ARM7TDMI) =-mtune=arm7tdmi -tune-$(CONFIG_CPU_ARM720T) =-mtune=arm7tdmi -tune-$(CONFIG_CPU_ARM740T) =-mtune=arm7tdmi -tune-$(CONFIG_CPU_ARM9TDMI) =-mtune=arm9tdmi -tune-$(CONFIG_CPU_ARM940T) =-mtune=arm9tdmi -tune-$(CONFIG_CPU_ARM946E) =-mtune=arm9e -tune-$(CONFIG_CPU_ARM920T) =-mtune=arm9tdmi -tune-$(CONFIG_CPU_ARM922T) =-mtune=arm9tdmi -tune-$(CONFIG_CPU_ARM925T) =-mtune=arm9tdmi -tune-$(CONFIG_CPU_ARM926T) =-mtune=arm9tdmi -tune-$(CONFIG_CPU_FA526) =-mtune=arm9tdmi -tune-$(CONFIG_CPU_SA110) =-mtune=strongarm110 -tune-$(CONFIG_CPU_SA1100) =-mtune=strongarm1100 -tune-$(CONFIG_CPU_XSCALE) =-mtune=xscale -tune-$(CONFIG_CPU_XSC3) =-mtune=xscale -tune-$(CONFIG_CPU_FEROCEON) =-mtune=xscale -tune-$(CONFIG_CPU_V6) =-mtune=arm1136j-s -tune-$(CONFIG_CPU_V6K) =-mtune=arm1136j-s - -# Evaluate tune cc-option calls now -tune-y := $(tune-y) +tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi +tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi +tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi +tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi +tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi +tune-$(CONFIG_CPU_ARM946E) :=-mtune=arm9e +tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi +tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi +tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi +tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi +tune-$(CONFIG_CPU_FA526) :=-mtune=arm9tdmi +tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110 +tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100 +tune-$(CONFIG_CPU_XSCALE) :=-mtune=xscale +tune-$(CONFIG_CPU_XSC3) :=-mtune=xscale +tune-$(CONFIG_CPU_FEROCEON) :=-mtune=xscale +tune-$(CONFIG_CPU_V6) :=-mtune=arm1136j-s +tune-$(CONFIG_CPU_V6K) :=-mtune=arm1136j-s ifeq ($(CONFIG_AEABI),y) CFLAGS_ABI :=-mabi=aapcs-linux -mfpu=vfp @@ -117,23 +124,25 @@ CFLAGS_ABI += -meabi gnu endif ifeq ($(CONFIG_CURRENT_POINTER_IN_TPIDRURO),y) -CFLAGS_ABI += -mtp=cp15 +KBUILD_CFLAGS += -mtp=cp15 endif # Accept old syntax despite ".syntax unified" AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W) ifeq ($(CONFIG_THUMB2_KERNEL),y) -CFLAGS_ISA :=-mthumb -Wa,-mimplicit-it=always $(AFLAGS_NOWARN) -AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb +CFLAGS_ISA :=-Wa,-mimplicit-it=always $(AFLAGS_NOWARN) +AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb -D__thumb2__=2 +CFLAGS_ISA +=-mthumb else CFLAGS_ISA :=$(call cc-option,-marm,) $(AFLAGS_NOWARN) AFLAGS_ISA :=$(CFLAGS_ISA) endif # Need -Uarm for gcc < 3.x +KBUILD_CPPFLAGS +=$(cpp-y) KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm -KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float +KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) -Wa,$(arch-y) $(tune-y) -include asm/unified.h -msoft-float CHECKFLAGS += -D__arm__ |