1# 2# arch/sh/Makefile 3# 4# Copyright (C) 1999 Kaz Kojima 5# Copyright (C) 2002 - 2008 Paul Mundt 6# Copyright (C) 2002 M. R. Brown 7# 8# This file is subject to the terms and conditions of the GNU General Public 9# License. See the file "COPYING" in the main directory of this archive 10# for more details. 11# 12ifdef cross_compiling 13 ifeq ($(CROSS_COMPILE),) 14 CROSS_COMPILE := $(call cc-cross-prefix, sh-linux- sh-linux-gnu- sh-unknown-linux-gnu-) 15 endif 16endif 17 18KBUILD_DEFCONFIG := shx3_defconfig 19 20isa-y := any 21isa-$(CONFIG_SH_DSP) := sh 22isa-$(CONFIG_CPU_SH2) := sh2 23isa-$(CONFIG_CPU_SH2A) := sh2a 24isa-$(CONFIG_CPU_SH3) := sh3 25isa-$(CONFIG_CPU_SH4) := sh4 26isa-$(CONFIG_CPU_SH4A) := sh4a 27isa-$(CONFIG_CPU_SH4AL_DSP) := sh4al 28 29isa-$(CONFIG_SH_DSP) := $(isa-y)-dsp 30isa-y := $(isa-y)-up 31 32cflags-$(CONFIG_CPU_SH2) := $(call cc-option,-m2,) 33cflags-$(CONFIG_CPU_J2) += $(call cc-option,-mj2,) 34cflags-$(CONFIG_CPU_SH2A) += $(call cc-option,-m2a,) \ 35 $(call cc-option,-m2a-nofpu,) \ 36 $(call cc-option,-m4-nofpu,) 37cflags-$(CONFIG_CPU_SH3) := $(call cc-option,-m3,) 38cflags-$(CONFIG_CPU_SH4) := $(call cc-option,-m4,) \ 39 $(call cc-option,-mno-implicit-fp,-m4-nofpu) 40cflags-$(CONFIG_CPU_SH4A) += $(call cc-option,-m4a,) \ 41 $(call cc-option,-m4a-nofpu,) 42cflags-$(CONFIG_CPU_SH4AL_DSP) += $(call cc-option,-m4al,) 43 44ifeq ($(cflags-y),) 45# 46# In the case where we are stuck with a compiler that has been uselessly 47# restricted to a particular ISA, a favourite default of newer GCCs when 48# extensive multilib targets are not provided, ensure we get the best fit 49# regarding FP generation. This is intentionally stupid (albeit many 50# orders of magnitude less than GCC's default behaviour), as anything 51# with a large number of multilib targets better have been built 52# correctly for the target in mind. 53# 54cflags-y += $(shell $(CC) $(KBUILD_CFLAGS) -print-multi-lib | \ 55 grep nofpu | sed q | sed -e 's/^/-/;s/;.*$$//') 56# At this point, anything goes. 57isaflags-y := $(call as-option,-Wa$(comma)-isa=any,) 58else 59# 60# -Wa,-isa= tuning implies -Wa,-dsp for the versions of binutils that 61# support it, while -Wa,-dsp by itself limits the range of usable opcodes 62# on certain CPU subtypes. Try the ISA variant first, and if that fails, 63# fall back on -Wa,-dsp for the old binutils versions. Even without DSP 64# opcodes, we always want the best ISA tuning the version of binutils 65# will provide. 66# 67isaflags-y := $(call as-option,-Wa$(comma)-isa=$(isa-y),) 68 69isaflags-$(CONFIG_SH_DSP) := \ 70 $(call as-option,-Wa$(comma)-isa=$(isa-y),-Wa$(comma)-dsp) 71endif 72 73cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mb 74cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -ml 75 76cflags-y += $(call cc-option,-mno-fdpic) 77cflags-y += $(isaflags-y) -ffreestanding 78 79OBJCOPYFLAGS := -O binary -R .note -R .note.gnu.build-id -R .comment \ 80 -R .stab -R .stabstr -S 81 82# Give the various platforms the opportunity to set default image types 83defaultimage-y := zImage 84defaultimage-$(CONFIG_SH_SH7785LCR) := uImage 85defaultimage-$(CONFIG_SH_RSK) := uImage 86defaultimage-$(CONFIG_SH_URQUELL) := uImage 87defaultimage-$(CONFIG_SH_MIGOR) := uImage 88defaultimage-$(CONFIG_SH_AP325RXA) := uImage 89defaultimage-$(CONFIG_SH_SH7757LCR) := uImage 90defaultimage-$(CONFIG_SH_7724_SOLUTION_ENGINE) := uImage 91defaultimage-$(CONFIG_SH_7206_SOLUTION_ENGINE) := vmlinux 92defaultimage-$(CONFIG_SH_7619_SOLUTION_ENGINE) := vmlinux 93 94# Set some sensible Kbuild defaults 95boot := arch/sh/boot 96KBUILD_IMAGE := $(boot)/$(defaultimage-y) 97 98# 99# Choosing incompatible machines durings configuration will result in 100# error messages during linking. 101# 102UTS_MACHINE := sh 103LDFLAGS_vmlinux += -e _stext 104 105ifdef CONFIG_CPU_LITTLE_ENDIAN 106ld-bfd := elf32-sh-linux 107LDFLAGS_vmlinux += --defsym jiffies=jiffies_64 --oformat $(ld-bfd) 108KBUILD_LDFLAGS += -EL 109else 110ld-bfd := elf32-shbig-linux 111LDFLAGS_vmlinux += --defsym jiffies=jiffies_64+4 --oformat $(ld-bfd) 112KBUILD_LDFLAGS += -EB 113endif 114 115export ld-bfd 116 117# Mach groups 118machdir-$(CONFIG_SOLUTION_ENGINE) += mach-se 119machdir-$(CONFIG_SH_DREAMCAST) += mach-dreamcast 120machdir-$(CONFIG_SH_SH03) += mach-sh03 121machdir-$(CONFIG_SH_MIGOR) += mach-migor 122machdir-$(CONFIG_SH_KFR2R09) += mach-kfr2r09 123machdir-$(CONFIG_SH_ECOVEC) += mach-ecovec24 124machdir-$(CONFIG_SH_SDK7786) += mach-sdk7786 125machdir-$(CONFIG_SH_X3PROTO) += mach-x3proto 126machdir-$(CONFIG_SH_LANDISK) += mach-landisk 127machdir-y += mach-common 128 129# 130# CPU header paths 131# 132# These are ordered by optimization level. A CPU family that is a subset 133# of another (ie, SH-2A / SH-2), is picked up first, with increasing 134# levels of genericness if nothing more suitable is situated in the 135# hierarchy. 136# 137# As an example, in order of preference, SH-2A > SH-2 > common definitions. 138# 139cpuincdir-$(CONFIG_CPU_SH2A) += cpu-sh2a 140cpuincdir-$(CONFIG_CPU_SH2) += cpu-sh2 141cpuincdir-$(CONFIG_CPU_SH3) += cpu-sh3 142cpuincdir-$(CONFIG_CPU_SH4A) += cpu-sh4a 143cpuincdir-$(CONFIG_CPU_SH4) += cpu-sh4 144cpuincdir-y += cpu-common # Must be last 145 146drivers-y += arch/sh/drivers/ 147 148cflags-y += $(addprefix -I $(srctree)/arch/sh/include/, $(cpuincdir-y) $(machdir-y)) 149 150KBUILD_CFLAGS += -pipe $(cflags-y) 151KBUILD_CPPFLAGS += $(cflags-y) 152KBUILD_AFLAGS += $(cflags-y) 153 154ifeq ($(CONFIG_MCOUNT),y) 155 KBUILD_CFLAGS += -pg 156endif 157 158ifeq ($(CONFIG_DWARF_UNWINDER),y) 159 KBUILD_CFLAGS += -fasynchronous-unwind-tables 160endif 161 162libs-y := arch/sh/lib/ $(libs-y) 163 164BOOT_TARGETS = uImage uImage.bz2 uImage.gz uImage.lzma uImage.xz uImage.lzo \ 165 uImage.srec uImage.bin zImage vmlinux.bin vmlinux.srec \ 166 romImage 167PHONY += $(BOOT_TARGETS) 168 169all: $(notdir $(KBUILD_IMAGE)) 170 171$(BOOT_TARGETS): vmlinux 172 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 173 174compressed: zImage 175 176archprepare: 177 $(Q)$(MAKE) $(build)=arch/sh/tools include/generated/machtypes.h 178 179archheaders: 180 $(Q)$(MAKE) $(build)=arch/sh/kernel/syscalls all 181 182define archhelp 183 @echo ' zImage - Compressed kernel image' 184 @echo ' romImage - Compressed ROM image, if supported' 185 @echo ' vmlinux.srec - Create an ELF S-record' 186 @echo ' vmlinux.bin - Create an uncompressed binary image' 187 @echo '* uImage - Alias to bootable U-Boot image' 188 @echo ' uImage.srec - Create an S-record for U-Boot' 189 @echo ' uImage.bin - Kernel-only image for U-Boot (bin)' 190 @echo '* uImage.gz - Kernel-only image for U-Boot (gzip)' 191 @echo ' uImage.bz2 - Kernel-only image for U-Boot (bzip2)' 192 @echo ' uImage.lzma - Kernel-only image for U-Boot (lzma)' 193 @echo ' uImage.xz - Kernel-only image for U-Boot (xz)' 194 @echo ' uImage.lzo - Kernel-only image for U-Boot (lzo)' 195endef 196