arch/sh/Makefile

   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 ifneq ($(SUBARCH),$(ARCH))
  13   ifeq ($(CROSS_COMPILE),)
  14     CROSS_COMPILE := $(call cc-cross-prefix, $(UTS_MACHINE)-linux-  $(UTS_MACHINE)-linux-gnu-  $(UTS_MACHINE)-unknown-linux-gnu-)
  15   endif
  16 endif
  17
  18 ifeq ($(ARCH),sh)
  19 KBUILD_DEFCONFIG        := shx3_defconfig
  20 else
  21 KBUILD_DEFCONFIG        := cayman_defconfig
  22 endif
  23
  24 isa-y                                   := any
  25 isa-$(CONFIG_SH_DSP)                    := sh
  26 isa-$(CONFIG_CPU_SH2)                   := sh2
  27 isa-$(CONFIG_CPU_SH2A)                  := sh2a
  28 isa-$(CONFIG_CPU_SH3)                   := sh3
  29 isa-$(CONFIG_CPU_SH4)                   := sh4
  30 isa-$(CONFIG_CPU_SH4A)                  := sh4a
  31 isa-$(CONFIG_CPU_SH4AL_DSP)             := sh4al
  32 isa-$(CONFIG_CPU_SH5)                   := shmedia
  33
  34 ifeq ($(CONFIG_SUPERH32),y)
  35 isa-$(CONFIG_SH_DSP)                    := $(isa-y)-dsp
  36 isa-y                                   := $(isa-y)-up
  37 endif
  38
  39 cflags-$(CONFIG_CPU_SH2)                := $(call cc-option,-m2,)
  40 cflags-$(CONFIG_CPU_J2)                 += $(call cc-option,-mj2,)
  41 cflags-$(CONFIG_CPU_SH2A)               += $(call cc-option,-m2a,) \
  42                                            $(call cc-option,-m2a-nofpu,) \
  43                                            $(call cc-option,-m4-nofpu,)
  44 cflags-$(CONFIG_CPU_SH3)                := $(call cc-option,-m3,)
  45 cflags-$(CONFIG_CPU_SH4)                := $(call cc-option,-m4,) \
  46         $(call cc-option,-mno-implicit-fp,-m4-nofpu)
  47 cflags-$(CONFIG_CPU_SH4A)               += $(call cc-option,-m4a,) \
  48                                            $(call cc-option,-m4a-nofpu,)
  49 cflags-$(CONFIG_CPU_SH4AL_DSP)          += $(call cc-option,-m4al,)
  50 cflags-$(CONFIG_CPU_SH5)                := $(call cc-option,-m5-32media-nofpu,)
  51
  52 ifeq ($(cflags-y),)
  53 #
  54 # In the case where we are stuck with a compiler that has been uselessly
  55 # restricted to a particular ISA, a favourite default of newer GCCs when
  56 # extensive multilib targets are not provided, ensure we get the best fit
  57 # regarding FP generation. This is intentionally stupid (albeit many
  58 # orders of magnitude less than GCC's default behaviour), as anything
  59 # with a large number of multilib targets better have been built
  60 # correctly for the target in mind.
  61 #
  62 cflags-y        += $(shell $(CC) $(KBUILD_CFLAGS) -print-multi-lib | \
  63                      grep nofpu | sed q | sed -e 's/^/-/;s/;.*$$//')
  64 # At this point, anything goes.
  65 isaflags-y      := $(call as-option,-Wa$(comma)-isa=any,)
  66 else
  67 #
  68 # -Wa,-isa= tuning implies -Wa,-dsp for the versions of binutils that
  69 # support it, while -Wa,-dsp by itself limits the range of usable opcodes
  70 # on certain CPU subtypes. Try the ISA variant first, and if that fails,
  71 # fall back on -Wa,-dsp for the old binutils versions. Even without DSP
  72 # opcodes, we always want the best ISA tuning the version of binutils
  73 # will provide.
  74 #
  75 isaflags-y      := $(call as-option,-Wa$(comma)-isa=$(isa-y),)
  76
  77 isaflags-$(CONFIG_SH_DSP)               := \
  78         $(call as-option,-Wa$(comma)-isa=$(isa-y),-Wa$(comma)-dsp)
  79 endif
  80
  81 cflags-$(CONFIG_CPU_BIG_ENDIAN)         += -mb
  82 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)      += -ml
  83
  84 cflags-y        += $(call cc-option,-mno-fdpic)
  85 cflags-y        += $(isaflags-y) -ffreestanding
  86
  87 OBJCOPYFLAGS    := -O binary -R .note -R .note.gnu.build-id -R .comment \
  88                    -R .stab -R .stabstr -S
  89
  90 # Give the various platforms the opportunity to set default image types
  91 defaultimage-$(CONFIG_SUPERH32)                 := zImage
  92 defaultimage-$(CONFIG_SH_SH7785LCR)             := uImage
  93 defaultimage-$(CONFIG_SH_RSK)                   := uImage
  94 defaultimage-$(CONFIG_SH_URQUELL)               := uImage
  95 defaultimage-$(CONFIG_SH_MIGOR)                 := uImage
  96 defaultimage-$(CONFIG_SH_AP325RXA)              := uImage
  97 defaultimage-$(CONFIG_SH_SH7757LCR)             := uImage
  98 defaultimage-$(CONFIG_SH_7724_SOLUTION_ENGINE)  := uImage
  99 defaultimage-$(CONFIG_SH_7206_SOLUTION_ENGINE)  := vmlinux
 100 defaultimage-$(CONFIG_SH_7619_SOLUTION_ENGINE)  := vmlinux
 101
 102 # Set some sensible Kbuild defaults
 103 boot := arch/sh/boot
 104 KBUILD_IMAGE            := $(boot)/$(defaultimage-y)
 105
 106 #
 107 # Choosing incompatible machines durings configuration will result in
 108 # error messages during linking.
 109 #
 110 ifdef CONFIG_SUPERH32
 111 UTS_MACHINE             := sh
 112 BITS                    := 32
 113 LDFLAGS_vmlinux         += -e _stext
 114 else
 115 UTS_MACHINE             := sh64
 116 BITS                    := 64
 117 LDFLAGS_vmlinux         += --defsym phys_stext=_stext-$(CONFIG_PAGE_OFFSET) \
 118                            --defsym phys_stext_shmedia=phys_stext+1 \
 119                            -e phys_stext_shmedia
 120 endif
 121
 122 ifdef CONFIG_CPU_LITTLE_ENDIAN
 123 ld-bfd                  := elf32-$(UTS_MACHINE)-linux
 124 LDFLAGS_vmlinux         += --defsym jiffies=jiffies_64 --oformat $(ld-bfd)
 125 LDFLAGS                 += -EL
 126 else
 127 ld-bfd                  := elf32-$(UTS_MACHINE)big-linux
 128 LDFLAGS_vmlinux         += --defsym jiffies=jiffies_64+4 --oformat $(ld-bfd)
 129 LDFLAGS                 += -EB
 130 endif
 131
 132 export ld-bfd BITS
 133
 134 head-y  := arch/sh/kernel/head_$(BITS).o
 135
 136 core-y                          += arch/sh/kernel/ arch/sh/mm/ arch/sh/boards/
 137 core-$(CONFIG_SH_FPU_EMU)       += arch/sh/math-emu/
 138
 139 core-$(CONFIG_USE_BUILTIN_DTB)  += arch/sh/boot/dts/
 140
 141 # Mach groups
 142 machdir-$(CONFIG_SOLUTION_ENGINE)               += mach-se
 143 machdir-$(CONFIG_SH_HP6XX)                      += mach-hp6xx
 144 machdir-$(CONFIG_SH_DREAMCAST)                  += mach-dreamcast
 145 machdir-$(CONFIG_SH_SH03)                       += mach-sh03
 146 machdir-$(CONFIG_SH_RTS7751R2D)                 += mach-r2d
 147 machdir-$(CONFIG_SH_HIGHLANDER)                 += mach-highlander
 148 machdir-$(CONFIG_SH_MIGOR)                      += mach-migor
 149 machdir-$(CONFIG_SH_AP325RXA)                   += mach-ap325rxa
 150 machdir-$(CONFIG_SH_KFR2R09)                    += mach-kfr2r09
 151 machdir-$(CONFIG_SH_ECOVEC)                     += mach-ecovec24
 152 machdir-$(CONFIG_SH_SDK7780)                    += mach-sdk7780
 153 machdir-$(CONFIG_SH_SDK7786)                    += mach-sdk7786
 154 machdir-$(CONFIG_SH_X3PROTO)                    += mach-x3proto
 155 machdir-$(CONFIG_SH_SH7763RDP)                  += mach-sh7763rdp
 156 machdir-$(CONFIG_SH_SH4202_MICRODEV)            += mach-microdev
 157 machdir-$(CONFIG_SH_LANDISK)                    += mach-landisk
 158 machdir-$(CONFIG_SH_LBOX_RE2)                   += mach-lboxre2
 159 machdir-$(CONFIG_SH_CAYMAN)                     += mach-cayman
 160 machdir-$(CONFIG_SH_RSK)                        += mach-rsk
 161
 162 ifneq ($(machdir-y),)
 163 core-y  += $(addprefix arch/sh/boards/, \
 164              $(filter-out ., $(patsubst %,%/,$(machdir-y))))
 165 endif
 166
 167 # Common machine type headers. Not part of the arch/sh/boards/ hierarchy.
 168 machdir-y       += mach-common
 169
 170 # Companion chips
 171 core-$(CONFIG_HD6446X_SERIES)   += arch/sh/cchips/hd6446x/
 172
 173 #
 174 # CPU header paths
 175 #
 176 # These are ordered by optimization level. A CPU family that is a subset
 177 # of another (ie, SH-2A / SH-2), is picked up first, with increasing
 178 # levels of genericness if nothing more suitable is situated in the
 179 # hierarchy.
 180 #
 181 # As an example, in order of preference, SH-2A > SH-2 > common definitions.
 182 #
 183 cpuincdir-$(CONFIG_CPU_SH2A)    += cpu-sh2a
 184 cpuincdir-$(CONFIG_CPU_SH2)     += cpu-sh2
 185 cpuincdir-$(CONFIG_CPU_SH3)     += cpu-sh3
 186 cpuincdir-$(CONFIG_CPU_SH4A)    += cpu-sh4a
 187 cpuincdir-$(CONFIG_CPU_SH4)     += cpu-sh4
 188 cpuincdir-$(CONFIG_CPU_SH5)     += cpu-sh5
 189 cpuincdir-y                     += cpu-common   # Must be last
 190
 191 drivers-y                       += arch/sh/drivers/
 192 drivers-$(CONFIG_OPROFILE)      += arch/sh/oprofile/
 193
 194 cflags-y        += $(foreach d, $(cpuincdir-y), -Iarch/sh/include/$(d)) \
 195                    $(foreach d, $(machdir-y), -Iarch/sh/include/$(d))
 196
 197 KBUILD_CFLAGS           += -pipe $(cflags-y)
 198 KBUILD_CPPFLAGS         += $(cflags-y)
 199 KBUILD_AFLAGS           += $(cflags-y)
 200
 201 ifeq ($(CONFIG_MCOUNT),y)
 202   KBUILD_CFLAGS += -pg
 203 endif
 204
 205 ifeq ($(CONFIG_DWARF_UNWINDER),y)
 206   KBUILD_CFLAGS += -fasynchronous-unwind-tables
 207 endif
 208
 209 libs-$(CONFIG_SUPERH32)         := arch/sh/lib/ $(libs-y)
 210 libs-$(CONFIG_SUPERH64)         := arch/sh/lib64/ $(libs-y)
 211
 212 BOOT_TARGETS = uImage uImage.bz2 uImage.gz uImage.lzma uImage.xz uImage.lzo \
 213                uImage.srec uImage.bin zImage vmlinux.bin vmlinux.srec \
 214                romImage
 215 PHONY += $(BOOT_TARGETS)
 216
 217 all: $(notdir $(KBUILD_IMAGE))
 218
 219 $(BOOT_TARGETS): vmlinux
 220         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 221
 222 compressed: zImage
 223
 224 archprepare:
 225         $(Q)$(MAKE) $(build)=arch/sh/tools include/generated/machtypes.h
 226
 227 archclean:
 228         $(Q)$(MAKE) $(clean)=$(boot)
 229         $(Q)$(MAKE) $(clean)=arch/sh/kernel/vsyscall
 230
 231 define archhelp
 232         @echo '  zImage                    - Compressed kernel image'
 233         @echo '  romImage                  - Compressed ROM image, if supported'
 234         @echo '  vmlinux.srec              - Create an ELF S-record'
 235         @echo '  vmlinux.bin               - Create an uncompressed binary image'
 236         @echo '* uImage                    - Alias to bootable U-Boot image'
 237         @echo '  uImage.srec               - Create an S-record for U-Boot'
 238         @echo '  uImage.bin                - Kernel-only image for U-Boot (bin)'
 239         @echo '* uImage.gz                 - Kernel-only image for U-Boot (gzip)'
 240         @echo '  uImage.bz2                - Kernel-only image for U-Boot (bzip2)'
 241         @echo '  uImage.lzma               - Kernel-only image for U-Boot (lzma)'
 242         @echo '  uImage.xz                 - Kernel-only image for U-Boot (xz)'
 243         @echo '  uImage.lzo                - Kernel-only image for U-Boot (lzo)'
 244 endef