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 # 12 ifdef cross_compiling 13 ifeq ($(CROSS_COMPILE),) 14 CROSS_COMPILE := $(call cc-cross-prefix, sh-linux- sh-linux-gnu- sh-unknown-linux-gnu-) 15 endif 16 endif 17 18 KBUILD_DEFCONFIG := shx3_defconfig 19 20 isa-y := any 21 isa-$(CONFIG_SH_DSP) := sh 22 isa-$(CONFIG_CPU_SH2) := sh2 23 isa-$(CONFIG_CPU_SH2A) := sh2a 24 isa-$(CONFIG_CPU_SH3) := sh3 25 isa-$(CONFIG_CPU_SH4) := sh4 26 isa-$(CONFIG_CPU_SH4A) := sh4a 27 isa-$(CONFIG_CPU_SH4AL_DSP) := sh4al 28 29 isa-$(CONFIG_SH_DSP) := $(isa-y)-dsp 30 isa-y := $(isa-y)-up 31 32 cflags-$(CONFIG_CPU_SH2) := $(call cc-option,-m2,) 33 cflags-$(CONFIG_CPU_J2) += $(call cc-option,-mj2,) 34 cflags-$(CONFIG_CPU_SH2A) += $(call cc-option,-m2a,) \ 35 $(call cc-option,-m2a-nofpu,) \ 36 $(call cc-option,-m4-nofpu,) 37 cflags-$(CONFIG_CPU_SH3) := $(call cc-option,-m3,) 38 cflags-$(CONFIG_CPU_SH4) := $(call cc-option,-m4,) \ 39 $(call cc-option,-mno-implicit-fp,-m4-nofpu) 40 cflags-$(CONFIG_CPU_SH4A) += $(call cc-option,-m4a,) \ 41 $(call cc-option,-m4a-nofpu,) 42 cflags-$(CONFIG_CPU_SH4AL_DSP) += $(call cc-option,-m4al,) 43 44 ifeq ($(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 # 54 cflags-y += $(shell $(CC) $(KBUILD_CFLAGS) -print-multi-lib | \ 55 grep nofpu | sed q | sed -e 's/^/-/;s/;.*$$//') 56 # At this point, anything goes. 57 isaflags-y := $(call as-option,-Wa$(comma)-isa=any,) 58 else 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 # 67 isaflags-y := $(call as-option,-Wa$(comma)-isa=$(isa-y),) 68 69 isaflags-$(CONFIG_SH_DSP) := \ 70 $(call as-option,-Wa$(comma)-isa=$(isa-y),-Wa$(comma)-dsp) 71 endif 72 73 cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mb 74 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -ml 75 76 cflags-y += $(call cc-option,-mno-fdpic) 77 cflags-y += $(isaflags-y) -ffreestanding 78 79 OBJCOPYFLAGS := -O binary -R .note -R .note.gnu.build-id -R .comment \ 80 -R .stab -R .stabstr -S 81 82 # Give the various platforms the opportunity to set default image types 83 defaultimage-y := zImage 84 defaultimage-$(CONFIG_SH_SH7785LCR) := uImage 85 defaultimage-$(CONFIG_SH_RSK) := uImage 86 defaultimage-$(CONFIG_SH_URQUELL) := uImage 87 defaultimage-$(CONFIG_SH_MIGOR) := uImage 88 defaultimage-$(CONFIG_SH_AP325RXA) := uImage 89 defaultimage-$(CONFIG_SH_SH7757LCR) := uImage 90 defaultimage-$(CONFIG_SH_7724_SOLUTION_ENGINE) := uImage 91 defaultimage-$(CONFIG_SH_7206_SOLUTION_ENGINE) := vmlinux 92 defaultimage-$(CONFIG_SH_7619_SOLUTION_ENGINE) := vmlinux 93 94 # Set some sensible Kbuild defaults 95 boot := arch/sh/boot 96 KBUILD_IMAGE := $(boot)/$(defaultimage-y) 97 98 # 99 # Choosing incompatible machines durings configuration will result in 100 # error messages during linking. 101 # 102 UTS_MACHINE := sh 103 LDFLAGS_vmlinux += -e _stext 104 105 ifdef CONFIG_CPU_LITTLE_ENDIAN 106 ld-bfd := elf32-sh-linux 107 LDFLAGS_vmlinux += --defsym jiffies=jiffies_64 --oformat $(ld-bfd) 108 KBUILD_LDFLAGS += -EL 109 else 110 ld-bfd := elf32-shbig-linux 111 LDFLAGS_vmlinux += --defsym jiffies=jiffies_64+4 --oformat $(ld-bfd) 112 KBUILD_LDFLAGS += -EB 113 endif 114 115 export ld-bfd 116 117 # Mach groups 118 machdir-$(CONFIG_SOLUTION_ENGINE) += mach-se 119 machdir-$(CONFIG_SH_DREAMCAST) += mach-dreamcast 120 machdir-$(CONFIG_SH_SH03) += mach-sh03 121 machdir-$(CONFIG_SH_MIGOR) += mach-migor 122 machdir-$(CONFIG_SH_KFR2R09) += mach-kfr2r09 123 machdir-$(CONFIG_SH_ECOVEC) += mach-ecovec24 124 machdir-$(CONFIG_SH_SDK7786) += mach-sdk7786 125 machdir-$(CONFIG_SH_X3PROTO) += mach-x3proto 126 machdir-$(CONFIG_SH_LANDISK) += mach-landisk 127 machdir-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 # 139 cpuincdir-$(CONFIG_CPU_SH2A) += cpu-sh2a 140 cpuincdir-$(CONFIG_CPU_SH2) += cpu-sh2 141 cpuincdir-$(CONFIG_CPU_SH3) += cpu-sh3 142 cpuincdir-$(CONFIG_CPU_SH4A) += cpu-sh4a 143 cpuincdir-$(CONFIG_CPU_SH4) += cpu-sh4 144 cpuincdir-y += cpu-common # Must be last 145 146 drivers-y += arch/sh/drivers/ 147 148 KBUILD_CPPFLAGS += $(addprefix -I $(srctree)/arch/sh/include/, $(cpuincdir-y) $(machdir-y)) 149 KBUILD_CFLAGS += -pipe $(cflags-y) 150 KBUILD_AFLAGS += $(cflags-y) 151 152 ifeq ($(CONFIG_MCOUNT),y) 153 KBUILD_CFLAGS += -pg 154 endif 155 156 ifeq ($(CONFIG_DWARF_UNWINDER),y) 157 KBUILD_CFLAGS += -fasynchronous-unwind-tables 158 endif 159 160 libs-y := arch/sh/lib/ $(libs-y) 161 162 BOOT_TARGETS = uImage uImage.bz2 uImage.gz uImage.lzma uImage.xz uImage.lzo \ 163 uImage.srec uImage.bin zImage vmlinux.bin vmlinux.srec \ 164 romImage 165 PHONY += $(BOOT_TARGETS) 166 167 all: $(notdir $(KBUILD_IMAGE)) 168 169 $(BOOT_TARGETS): vmlinux 170 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 171 172 compressed: zImage 173 174 archprepare: 175 $(Q)$(MAKE) $(build)=arch/sh/tools include/generated/machtypes.h 176 177 archheaders: 178 $(Q)$(MAKE) $(build)=arch/sh/kernel/syscalls all 179 180 define archhelp 181 @echo ' zImage - Compressed kernel image' 182 @echo ' romImage - Compressed ROM image, if supported' 183 @echo ' vmlinux.srec - Create an ELF S-record' 184 @echo ' vmlinux.bin - Create an uncompressed binary image' 185 @echo '* uImage - Alias to bootable U-Boot image' 186 @echo ' uImage.srec - Create an S-record for U-Boot' 187 @echo ' uImage.bin - Kernel-only image for U-Boot (bin)' 188 @echo '* uImage.gz - Kernel-only image for U-Boot (gzip)' 189 @echo ' uImage.bz2 - Kernel-only image for U-Boot (bzip2)' 190 @echo ' uImage.lzma - Kernel-only image for U-Boot (lzma)' 191 @echo ' uImage.xz - Kernel-only image for U-Boot (xz)' 192 @echo ' uImage.lzo - Kernel-only image for U-Boot (lzo)' 193 endef
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.