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 $(ld-bfd) 112KBUILD_LDFLAGS += -EB 113endif 114 115export ld-bfd 116 117head-y := arch/sh/kernel/head_32.o 118 119core-y += arch/sh/kernel/ arch/sh/mm/ arch/sh/boards/ 120core-$(CONFIG_SH_FPU_EMU) += arch/sh/math-emu/ 121 122core-$(CONFIG_USE_BUILTIN_DTB) += arch/sh/boot/dts/ 123 124# Mach groups 125machdir-$(CONFIG_SOLUTION_ENGINE) += mach-se 126machdir-$(CONFIG_SH_HP6XX) += mach-hp6xx 127machdir-$(CONFIG_SH_DREAMCAST) += mach-dreamcast 128machdir-$(CONFIG_SH_SH03) += mach-sh03 129machdir-$(CONFIG_SH_RTS7751R2D) += mach-r2d 130machdir-$(CONFIG_SH_HIGHLANDER) += mach-highlander 131machdir-$(CONFIG_SH_MIGOR) += mach-migor 132machdir-$(CONFIG_SH_AP325RXA) += mach-ap325rxa 133machdir-$(CONFIG_SH_KFR2R09) += mach-kfr2r09 134machdir-$(CONFIG_SH_ECOVEC) += mach-ecovec24 135machdir-$(CONFIG_SH_SDK7780) += mach-sdk7780 136machdir-$(CONFIG_SH_SDK7786) += mach-sdk7786 137machdir-$(CONFIG_SH_X3PROTO) += mach-x3proto 138machdir-$(CONFIG_SH_SH7763RDP) += mach-sh7763rdp 139machdir-$(CONFIG_SH_SH4202_MICRODEV) += mach-microdev 140machdir-$(CONFIG_SH_LANDISK) += mach-landisk 141machdir-$(CONFIG_SH_LBOX_RE2) += mach-lboxre2 142machdir-$(CONFIG_SH_RSK) += mach-rsk 143 144ifneq ($(machdir-y),) 145core-y += $(addprefix arch/sh/boards/, \ 146 $(filter-out ., $(patsubst %,%/,$(machdir-y)))) 147endif 148 149# Common machine type headers. Not part of the arch/sh/boards/ hierarchy. 150machdir-y += mach-common 151 152# Companion chips 153core-$(CONFIG_HD6446X_SERIES) += arch/sh/cchips/hd6446x/ 154 155# 156# CPU header paths 157# 158# These are ordered by optimization level. A CPU family that is a subset 159# of another (ie, SH-2A / SH-2), is picked up first, with increasing 160# levels of genericness if nothing more suitable is situated in the 161# hierarchy. 162# 163# As an example, in order of preference, SH-2A > SH-2 > common definitions. 164# 165cpuincdir-$(CONFIG_CPU_SH2A) += cpu-sh2a 166cpuincdir-$(CONFIG_CPU_SH2) += cpu-sh2 167cpuincdir-$(CONFIG_CPU_SH3) += cpu-sh3 168cpuincdir-$(CONFIG_CPU_SH4A) += cpu-sh4a 169cpuincdir-$(CONFIG_CPU_SH4) += cpu-sh4 170cpuincdir-y += cpu-common # Must be last 171 172drivers-y += arch/sh/drivers/ 173 174cflags-y += $(foreach d, $(cpuincdir-y), -I $(srctree)/arch/sh/include/$(d)) \ 175 $(foreach d, $(machdir-y), -I $(srctree)/arch/sh/include/$(d)) 176 177KBUILD_CFLAGS += -pipe $(cflags-y) 178KBUILD_CPPFLAGS += $(cflags-y) 179KBUILD_AFLAGS += $(cflags-y) 180 181ifeq ($(CONFIG_MCOUNT),y) 182 KBUILD_CFLAGS += -pg 183endif 184 185ifeq ($(CONFIG_DWARF_UNWINDER),y) 186 KBUILD_CFLAGS += -fasynchronous-unwind-tables 187endif 188 189libs-y := arch/sh/lib/ $(libs-y) 190 191BOOT_TARGETS = uImage uImage.bz2 uImage.gz uImage.lzma uImage.xz uImage.lzo \ 192 uImage.srec uImage.bin zImage vmlinux.bin vmlinux.srec \ 193 romImage 194PHONY += $(BOOT_TARGETS) 195 196all: $(notdir $(KBUILD_IMAGE)) 197 198$(BOOT_TARGETS): vmlinux 199 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 200 201compressed: zImage 202 203archprepare: 204 $(Q)$(MAKE) $(build)=arch/sh/tools include/generated/machtypes.h 205 206archclean: 207 $(Q)$(MAKE) $(clean)=$(boot) 208 $(Q)$(MAKE) $(clean)=arch/sh/kernel/vsyscall 209 210archheaders: 211 $(Q)$(MAKE) $(build)=arch/sh/kernel/syscalls all 212 213define archhelp 214 @echo ' zImage - Compressed kernel image' 215 @echo ' romImage - Compressed ROM image, if supported' 216 @echo ' vmlinux.srec - Create an ELF S-record' 217 @echo ' vmlinux.bin - Create an uncompressed binary image' 218 @echo '* uImage - Alias to bootable U-Boot image' 219 @echo ' uImage.srec - Create an S-record for U-Boot' 220 @echo ' uImage.bin - Kernel-only image for U-Boot (bin)' 221 @echo '* uImage.gz - Kernel-only image for U-Boot (gzip)' 222 @echo ' uImage.bz2 - Kernel-only image for U-Boot (bzip2)' 223 @echo ' uImage.lzma - Kernel-only image for U-Boot (lzma)' 224 @echo ' uImage.xz - Kernel-only image for U-Boot (xz)' 225 @echo ' uImage.lzo - Kernel-only image for U-Boot (lzo)' 226endef 227