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 := $(call cc-cross-prefix, sh-linux- sh-linux-gnu- sh-unknown-linux-gnu-)
  15   endif
  16 endif
  17
  18 KBUILD_DEFCONFIG        := shx3_defconfig
  19
  20 isa-y                                   := any
  21 isa-$(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 $(ld-bfd)
 112 KBUILD_LDFLAGS          += -EB
 113 endif
 114
 115 export ld-bfd
 116
 117 head-y  := arch/sh/kernel/head_32.o
 118
 119 core-y                          += arch/sh/kernel/ arch/sh/mm/ arch/sh/boards/
 120 core-$(CONFIG_SH_FPU_EMU)       += arch/sh/math-emu/
 121
 122 core-$(CONFIG_USE_BUILTIN_DTB)  += arch/sh/boot/dts/
 123
 124 # Mach groups
 125 machdir-$(CONFIG_SOLUTION_ENGINE)               += mach-se
 126 machdir-$(CONFIG_SH_HP6XX)                      += mach-hp6xx
 127 machdir-$(CONFIG_SH_DREAMCAST)                  += mach-dreamcast
 128 machdir-$(CONFIG_SH_SH03)                       += mach-sh03
 129 machdir-$(CONFIG_SH_RTS7751R2D)                 += mach-r2d
 130 machdir-$(CONFIG_SH_HIGHLANDER)                 += mach-highlander
 131 machdir-$(CONFIG_SH_MIGOR)                      += mach-migor
 132 machdir-$(CONFIG_SH_AP325RXA)                   += mach-ap325rxa
 133 machdir-$(CONFIG_SH_KFR2R09)                    += mach-kfr2r09
 134 machdir-$(CONFIG_SH_ECOVEC)                     += mach-ecovec24
 135 machdir-$(CONFIG_SH_SDK7780)                    += mach-sdk7780
 136 machdir-$(CONFIG_SH_SDK7786)                    += mach-sdk7786
 137 machdir-$(CONFIG_SH_X3PROTO)                    += mach-x3proto
 138 machdir-$(CONFIG_SH_SH7763RDP)                  += mach-sh7763rdp
 139 machdir-$(CONFIG_SH_SH4202_MICRODEV)            += mach-microdev
 140 machdir-$(CONFIG_SH_LANDISK)                    += mach-landisk
 141 machdir-$(CONFIG_SH_LBOX_RE2)                   += mach-lboxre2
 142 machdir-$(CONFIG_SH_RSK)                        += mach-rsk
 143
 144 ifneq ($(machdir-y),)
 145 core-y  += $(addprefix arch/sh/boards/, \
 146              $(filter-out ., $(patsubst %,%/,$(machdir-y))))
 147 endif
 148
 149 # Common machine type headers. Not part of the arch/sh/boards/ hierarchy.
 150 machdir-y       += mach-common
 151
 152 # Companion chips
 153 core-$(CONFIG_HD6446X_SERIES)   += arch/sh/cchips/hd6446x/
 154
 155 #
 156 # CPU header paths
 157 #
 158 # These are ordered by optimization level. A CPU family that is a subset
 159 # of another (ie, SH-2A / SH-2), is picked up first, with increasing
 160 # levels of genericness if nothing more suitable is situated in the
 161 # hierarchy.
 162 #
 163 # As an example, in order of preference, SH-2A > SH-2 > common definitions.
 164 #
 165 cpuincdir-$(CONFIG_CPU_SH2A)    += cpu-sh2a
 166 cpuincdir-$(CONFIG_CPU_SH2)     += cpu-sh2
 167 cpuincdir-$(CONFIG_CPU_SH3)     += cpu-sh3
 168 cpuincdir-$(CONFIG_CPU_SH4A)    += cpu-sh4a
 169 cpuincdir-$(CONFIG_CPU_SH4)     += cpu-sh4
 170 cpuincdir-y                     += cpu-common   # Must be last
 171
 172 drivers-y                       += arch/sh/drivers/
 173 drivers-$(CONFIG_OPROFILE)      += arch/sh/oprofile/
 174
 175 cflags-y        += $(foreach d, $(cpuincdir-y), -I $(srctree)/arch/sh/include/$(d)) \
 176                    $(foreach d, $(machdir-y), -I $(srctree)/arch/sh/include/$(d))
 177
 178 KBUILD_CFLAGS           += -pipe $(cflags-y)
 179 KBUILD_CPPFLAGS         += $(cflags-y)
 180 KBUILD_AFLAGS           += $(cflags-y)
 181
 182 ifeq ($(CONFIG_MCOUNT),y)
 183   KBUILD_CFLAGS += -pg
 184 endif
 185
 186 ifeq ($(CONFIG_DWARF_UNWINDER),y)
 187   KBUILD_CFLAGS += -fasynchronous-unwind-tables
 188 endif
 189
 190 libs-y                  := arch/sh/lib/ $(libs-y)
 191
 192 BOOT_TARGETS = uImage uImage.bz2 uImage.gz uImage.lzma uImage.xz uImage.lzo \
 193                uImage.srec uImage.bin zImage vmlinux.bin vmlinux.srec \
 194                romImage
 195 PHONY += $(BOOT_TARGETS)
 196
 197 all: $(notdir $(KBUILD_IMAGE))
 198
 199 $(BOOT_TARGETS): vmlinux
 200         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 201
 202 compressed: zImage
 203
 204 archprepare:
 205         $(Q)$(MAKE) $(build)=arch/sh/tools include/generated/machtypes.h
 206
 207 archclean:
 208         $(Q)$(MAKE) $(clean)=$(boot)
 209         $(Q)$(MAKE) $(clean)=arch/sh/kernel/vsyscall
 210
 211 archheaders:
 212         $(Q)$(MAKE) $(build)=arch/sh/kernel/syscalls all
 213
 214 define archhelp
 215         @echo '  zImage                    - Compressed kernel image'
 216         @echo '  romImage                  - Compressed ROM image, if supported'
 217         @echo '  vmlinux.srec              - Create an ELF S-record'
 218         @echo '  vmlinux.bin               - Create an uncompressed binary image'
 219         @echo '* uImage                    - Alias to bootable U-Boot image'
 220         @echo '  uImage.srec               - Create an S-record for U-Boot'
 221         @echo '  uImage.bin                - Kernel-only image for U-Boot (bin)'
 222         @echo '* uImage.gz                 - Kernel-only image for U-Boot (gzip)'
 223         @echo '  uImage.bz2                - Kernel-only image for U-Boot (bzip2)'
 224         @echo '  uImage.lzma               - Kernel-only image for U-Boot (lzma)'
 225         @echo '  uImage.xz                 - Kernel-only image for U-Boot (xz)'
 226         @echo '  uImage.lzo                - Kernel-only image for U-Boot (lzo)'
 227 endef