diff options
Diffstat (limited to 'arch/sh/Makefile')
| -rw-r--r-- | arch/sh/Makefile | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/arch/sh/Makefile b/arch/sh/Makefile new file mode 100644 index 0000000000..cab2f9c011 --- /dev/null +++ b/arch/sh/Makefile @@ -0,0 +1,193 @@ +# +# arch/sh/Makefile +# +# Copyright (C) 1999 Kaz Kojima +# Copyright (C) 2002 - 2008 Paul Mundt +# Copyright (C) 2002 M. R. Brown +# +# This file is subject to the terms and conditions of the GNU General Public +# License. See the file "COPYING" in the main directory of this archive +# for more details. +# +ifdef cross_compiling + ifeq ($(CROSS_COMPILE),) + CROSS_COMPILE := $(call cc-cross-prefix, sh-linux- sh-linux-gnu- sh-unknown-linux-gnu-) + endif +endif + +KBUILD_DEFCONFIG := shx3_defconfig + +isa-y := any +isa-$(CONFIG_SH_DSP) := sh +isa-$(CONFIG_CPU_SH2) := sh2 +isa-$(CONFIG_CPU_SH2A) := sh2a +isa-$(CONFIG_CPU_SH3) := sh3 +isa-$(CONFIG_CPU_SH4) := sh4 +isa-$(CONFIG_CPU_SH4A) := sh4a +isa-$(CONFIG_CPU_SH4AL_DSP) := sh4al + +isa-$(CONFIG_SH_DSP) := $(isa-y)-dsp +isa-y := $(isa-y)-up + +cflags-$(CONFIG_CPU_SH2) := $(call cc-option,-m2,) +cflags-$(CONFIG_CPU_J2) += $(call cc-option,-mj2,) +cflags-$(CONFIG_CPU_SH2A) += $(call cc-option,-m2a,) \ + $(call cc-option,-m2a-nofpu,) \ + $(call cc-option,-m4-nofpu,) +cflags-$(CONFIG_CPU_SH3) := $(call cc-option,-m3,) +cflags-$(CONFIG_CPU_SH4) := $(call cc-option,-m4,) \ + $(call cc-option,-mno-implicit-fp,-m4-nofpu) +cflags-$(CONFIG_CPU_SH4A) += $(call cc-option,-m4a,) \ + $(call cc-option,-m4a-nofpu,) +cflags-$(CONFIG_CPU_SH4AL_DSP) += $(call cc-option,-m4al,) + +ifeq ($(cflags-y),) +# +# In the case where we are stuck with a compiler that has been uselessly +# restricted to a particular ISA, a favourite default of newer GCCs when +# extensive multilib targets are not provided, ensure we get the best fit +# regarding FP generation. This is intentionally stupid (albeit many +# orders of magnitude less than GCC's default behaviour), as anything +# with a large number of multilib targets better have been built +# correctly for the target in mind. +# +cflags-y += $(shell $(CC) $(KBUILD_CFLAGS) -print-multi-lib | \ + grep nofpu | sed q | sed -e 's/^/-/;s/;.*$$//') +# At this point, anything goes. +isaflags-y := $(call as-option,-Wa$(comma)-isa=any,) +else +# +# -Wa,-isa= tuning implies -Wa,-dsp for the versions of binutils that +# support it, while -Wa,-dsp by itself limits the range of usable opcodes +# on certain CPU subtypes. Try the ISA variant first, and if that fails, +# fall back on -Wa,-dsp for the old binutils versions. Even without DSP +# opcodes, we always want the best ISA tuning the version of binutils +# will provide. +# +isaflags-y := $(call as-option,-Wa$(comma)-isa=$(isa-y),) + +isaflags-$(CONFIG_SH_DSP) := \ + $(call as-option,-Wa$(comma)-isa=$(isa-y),-Wa$(comma)-dsp) +endif + +cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mb +cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -ml + +cflags-y += $(call cc-option,-mno-fdpic) +cflags-y += $(isaflags-y) -ffreestanding + +OBJCOPYFLAGS := -O binary -R .note -R .note.gnu.build-id -R .comment \ + -R .stab -R .stabstr -S + +# Give the various platforms the opportunity to set default image types +defaultimage-y := zImage +defaultimage-$(CONFIG_SH_SH7785LCR) := uImage +defaultimage-$(CONFIG_SH_RSK) := uImage +defaultimage-$(CONFIG_SH_URQUELL) := uImage +defaultimage-$(CONFIG_SH_MIGOR) := uImage +defaultimage-$(CONFIG_SH_AP325RXA) := uImage +defaultimage-$(CONFIG_SH_SH7757LCR) := uImage +defaultimage-$(CONFIG_SH_7724_SOLUTION_ENGINE) := uImage +defaultimage-$(CONFIG_SH_7206_SOLUTION_ENGINE) := vmlinux +defaultimage-$(CONFIG_SH_7619_SOLUTION_ENGINE) := vmlinux + +# Set some sensible Kbuild defaults +boot := arch/sh/boot +KBUILD_IMAGE := $(boot)/$(defaultimage-y) + +# +# Choosing incompatible machines durings configuration will result in +# error messages during linking. +# +UTS_MACHINE := sh +LDFLAGS_vmlinux += -e _stext + +ifdef CONFIG_CPU_LITTLE_ENDIAN +ld-bfd := elf32-sh-linux +LDFLAGS_vmlinux += --defsym jiffies=jiffies_64 --oformat $(ld-bfd) +KBUILD_LDFLAGS += -EL +else +ld-bfd := elf32-shbig-linux +LDFLAGS_vmlinux += --defsym jiffies=jiffies_64+4 --oformat $(ld-bfd) +KBUILD_LDFLAGS += -EB +endif + +export ld-bfd + +# Mach groups +machdir-$(CONFIG_SOLUTION_ENGINE) += mach-se +machdir-$(CONFIG_SH_DREAMCAST) += mach-dreamcast +machdir-$(CONFIG_SH_SH03) += mach-sh03 +machdir-$(CONFIG_SH_MIGOR) += mach-migor +machdir-$(CONFIG_SH_KFR2R09) += mach-kfr2r09 +machdir-$(CONFIG_SH_ECOVEC) += mach-ecovec24 +machdir-$(CONFIG_SH_SDK7786) += mach-sdk7786 +machdir-$(CONFIG_SH_X3PROTO) += mach-x3proto +machdir-$(CONFIG_SH_LANDISK) += mach-landisk +machdir-y += mach-common + +# +# CPU header paths +# +# These are ordered by optimization level. A CPU family that is a subset +# of another (ie, SH-2A / SH-2), is picked up first, with increasing +# levels of genericness if nothing more suitable is situated in the +# hierarchy. +# +# As an example, in order of preference, SH-2A > SH-2 > common definitions. +# +cpuincdir-$(CONFIG_CPU_SH2A) += cpu-sh2a +cpuincdir-$(CONFIG_CPU_SH2) += cpu-sh2 +cpuincdir-$(CONFIG_CPU_SH3) += cpu-sh3 +cpuincdir-$(CONFIG_CPU_SH4A) += cpu-sh4a +cpuincdir-$(CONFIG_CPU_SH4) += cpu-sh4 +cpuincdir-y += cpu-common # Must be last + +drivers-y += arch/sh/drivers/ + +KBUILD_CPPFLAGS += $(addprefix -I $(srctree)/arch/sh/include/, $(cpuincdir-y) $(machdir-y)) +KBUILD_CFLAGS += -pipe $(cflags-y) +KBUILD_AFLAGS += $(cflags-y) + +ifeq ($(CONFIG_MCOUNT),y) + KBUILD_CFLAGS += -pg +endif + +ifeq ($(CONFIG_DWARF_UNWINDER),y) + KBUILD_CFLAGS += -fasynchronous-unwind-tables +endif + +libs-y := arch/sh/lib/ $(libs-y) + +BOOT_TARGETS = uImage uImage.bz2 uImage.gz uImage.lzma uImage.xz uImage.lzo \ + uImage.srec uImage.bin zImage vmlinux.bin vmlinux.srec \ + romImage +PHONY += $(BOOT_TARGETS) + +all: $(notdir $(KBUILD_IMAGE)) + +$(BOOT_TARGETS): vmlinux + $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ + +compressed: zImage + +archprepare: + $(Q)$(MAKE) $(build)=arch/sh/tools include/generated/machtypes.h + +archheaders: + $(Q)$(MAKE) $(build)=arch/sh/kernel/syscalls all + +define archhelp + @echo ' zImage - Compressed kernel image' + @echo ' romImage - Compressed ROM image, if supported' + @echo ' vmlinux.srec - Create an ELF S-record' + @echo ' vmlinux.bin - Create an uncompressed binary image' + @echo '* uImage - Alias to bootable U-Boot image' + @echo ' uImage.srec - Create an S-record for U-Boot' + @echo ' uImage.bin - Kernel-only image for U-Boot (bin)' + @echo '* uImage.gz - Kernel-only image for U-Boot (gzip)' + @echo ' uImage.bz2 - Kernel-only image for U-Boot (bzip2)' + @echo ' uImage.lzma - Kernel-only image for U-Boot (lzma)' + @echo ' uImage.xz - Kernel-only image for U-Boot (xz)' + @echo ' uImage.lzo - Kernel-only image for U-Boot (lzo)' +endef |