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