linux/arch/sh/Makefile
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   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#
  12ifneq ($(SUBARCH),$(ARCH))
  13  ifeq ($(CROSS_COMPILE),)
  14    CROSS_COMPILE := $(call cc-cross-prefix, $(UTS_MACHINE)-linux-  $(UTS_MACHINE)-linux-gnu-  $(UTS_MACHINE)-unknown-linux-gnu-)
  15  endif
  16endif
  17
  18isa-y                                   := any
  19isa-$(CONFIG_SH_DSP)                    := sh
  20isa-$(CONFIG_CPU_SH2)                   := sh2
  21isa-$(CONFIG_CPU_SH2A)                  := sh2a
  22isa-$(CONFIG_CPU_SH3)                   := sh3
  23isa-$(CONFIG_CPU_SH4)                   := sh4
  24isa-$(CONFIG_CPU_SH4A)                  := sh4a
  25isa-$(CONFIG_CPU_SH4AL_DSP)             := sh4al
  26isa-$(CONFIG_CPU_SH5)                   := shmedia
  27
  28ifeq ($(CONFIG_SUPERH32),y)
  29isa-$(CONFIG_SH_DSP)                    := $(isa-y)-dsp
  30isa-y                                   := $(isa-y)-up
  31endif
  32
  33cflags-$(CONFIG_CPU_SH2)                := $(call cc-option,-m2,)
  34cflags-$(CONFIG_CPU_SH2A)               += $(call cc-option,-m2a,) \
  35                                           $(call cc-option,-m2a-nofpu,)
  36cflags-$(CONFIG_CPU_SH3)                := $(call cc-option,-m3,)
  37cflags-$(CONFIG_CPU_SH4)                := $(call cc-option,-m4,) \
  38        $(call cc-option,-mno-implicit-fp,-m4-nofpu)
  39cflags-$(CONFIG_CPU_SH4A)               += $(call cc-option,-m4a,) \
  40                                           $(call cc-option,-m4a-nofpu,)
  41cflags-$(CONFIG_CPU_SH4AL_DSP)          += $(call cc-option,-m4al,)
  42cflags-$(CONFIG_CPU_SH5)                := $(call cc-option,-m5-32media-nofpu,)
  43
  44ifeq ($(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        += $(isaflags-y) -ffreestanding
  78
  79OBJCOPYFLAGS    := -O binary -R .note -R .note.gnu.build-id -R .comment \
  80                   -R .stab -R .stabstr -S
  81
  82# Give the various platforms the opportunity to set default image types
  83defaultimage-$(CONFIG_SUPERH32)                 := 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
  95KBUILD_IMAGE            := $(defaultimage-y)
  96
  97#
  98# Choosing incompatible machines durings configuration will result in
  99# error messages during linking.
 100#
 101ifdef CONFIG_SUPERH32
 102UTS_MACHINE             := sh
 103BITS                    := 32
 104LDFLAGS_vmlinux         += -e _stext
 105KBUILD_DEFCONFIG        := shx3_defconfig
 106else
 107UTS_MACHINE             := sh64
 108BITS                    := 64
 109LDFLAGS_vmlinux         += --defsym phys_stext=_stext-$(CONFIG_PAGE_OFFSET) \
 110                           --defsym phys_stext_shmedia=phys_stext+1 \
 111                           -e phys_stext_shmedia
 112KBUILD_DEFCONFIG        := cayman_defconfig
 113endif
 114
 115ifdef CONFIG_CPU_LITTLE_ENDIAN
 116ld-bfd                  := elf32-$(UTS_MACHINE)-linux
 117LDFLAGS_vmlinux         += --defsym jiffies=jiffies_64 --oformat $(ld-bfd)
 118LDFLAGS                 += -EL
 119else
 120ld-bfd                  := elf32-$(UTS_MACHINE)big-linux
 121LDFLAGS_vmlinux         += --defsym jiffies=jiffies_64+4 --oformat $(ld-bfd)
 122LDFLAGS                 += -EB
 123endif
 124
 125export ld-bfd BITS
 126
 127head-y  := arch/sh/kernel/head_$(BITS).o
 128
 129core-y                          += arch/sh/kernel/ arch/sh/mm/ arch/sh/boards/
 130core-$(CONFIG_SH_FPU_EMU)       += arch/sh/math-emu/
 131
 132# Mach groups
 133machdir-$(CONFIG_SOLUTION_ENGINE)               += mach-se
 134machdir-$(CONFIG_SH_HP6XX)                      += mach-hp6xx
 135machdir-$(CONFIG_SH_DREAMCAST)                  += mach-dreamcast
 136machdir-$(CONFIG_SH_SH03)                       += mach-sh03
 137machdir-$(CONFIG_SH_RTS7751R2D)                 += mach-r2d
 138machdir-$(CONFIG_SH_HIGHLANDER)                 += mach-highlander
 139machdir-$(CONFIG_SH_MIGOR)                      += mach-migor
 140machdir-$(CONFIG_SH_AP325RXA)                   += mach-ap325rxa
 141machdir-$(CONFIG_SH_KFR2R09)                    += mach-kfr2r09
 142machdir-$(CONFIG_SH_ECOVEC)                     += mach-ecovec24
 143machdir-$(CONFIG_SH_SDK7780)                    += mach-sdk7780
 144machdir-$(CONFIG_SH_SDK7786)                    += mach-sdk7786
 145machdir-$(CONFIG_SH_X3PROTO)                    += mach-x3proto
 146machdir-$(CONFIG_SH_SH7763RDP)                  += mach-sh7763rdp
 147machdir-$(CONFIG_SH_SH4202_MICRODEV)            += mach-microdev
 148machdir-$(CONFIG_SH_LANDISK)                    += mach-landisk
 149machdir-$(CONFIG_SH_LBOX_RE2)                   += mach-lboxre2
 150machdir-$(CONFIG_SH_CAYMAN)                     += mach-cayman
 151machdir-$(CONFIG_SH_RSK)                        += mach-rsk
 152
 153ifneq ($(machdir-y),)
 154core-y  += $(addprefix arch/sh/boards/, \
 155             $(filter-out ., $(patsubst %,%/,$(machdir-y))))
 156endif
 157
 158# Common machine type headers. Not part of the arch/sh/boards/ hierarchy.
 159machdir-y       += mach-common
 160
 161# Companion chips
 162core-$(CONFIG_HD6446X_SERIES)   += arch/sh/cchips/hd6446x/
 163
 164#
 165# CPU header paths
 166#
 167# These are ordered by optimization level. A CPU family that is a subset
 168# of another (ie, SH-2A / SH-2), is picked up first, with increasing
 169# levels of genericness if nothing more suitable is situated in the
 170# hierarchy.
 171#
 172# As an example, in order of preference, SH-2A > SH-2 > common definitions.
 173#
 174cpuincdir-$(CONFIG_CPU_SH2A)    += cpu-sh2a
 175cpuincdir-$(CONFIG_CPU_SH2)     += cpu-sh2
 176cpuincdir-$(CONFIG_CPU_SH3)     += cpu-sh3
 177cpuincdir-$(CONFIG_CPU_SH4A)    += cpu-sh4a
 178cpuincdir-$(CONFIG_CPU_SH4)     += cpu-sh4
 179cpuincdir-$(CONFIG_CPU_SH5)     += cpu-sh5
 180cpuincdir-y                     += cpu-common   # Must be last
 181
 182drivers-y                       += arch/sh/drivers/
 183drivers-$(CONFIG_OPROFILE)      += arch/sh/oprofile/
 184
 185boot := arch/sh/boot
 186
 187cflags-y        += $(foreach d, $(cpuincdir-y), -Iarch/sh/include/$(d)) \
 188                   $(foreach d, $(machdir-y), -Iarch/sh/include/$(d))
 189
 190KBUILD_CFLAGS           += -pipe $(cflags-y)
 191KBUILD_CPPFLAGS         += $(cflags-y)
 192KBUILD_AFLAGS           += $(cflags-y)
 193
 194ifeq ($(CONFIG_MCOUNT),y)
 195  KBUILD_CFLAGS += -pg
 196endif
 197
 198ifeq ($(CONFIG_DWARF_UNWINDER),y)
 199  KBUILD_CFLAGS += -fasynchronous-unwind-tables
 200endif
 201
 202ifeq ($(CONFIG_CC_STACKPROTECTOR),y)
 203  KBUILD_CFLAGS += -fstack-protector
 204endif
 205
 206libs-$(CONFIG_SUPERH32)         := arch/sh/lib/ $(libs-y)
 207libs-$(CONFIG_SUPERH64)         := arch/sh/lib64/ $(libs-y)
 208
 209BOOT_TARGETS = uImage uImage.bz2 uImage.gz uImage.lzma uImage.xz uImage.lzo \
 210               uImage.srec uImage.bin zImage vmlinux.bin vmlinux.srec \
 211               romImage
 212PHONY += $(BOOT_TARGETS)
 213
 214all: $(KBUILD_IMAGE)
 215
 216$(BOOT_TARGETS): vmlinux
 217        $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 218
 219compressed: zImage
 220
 221archprepare:
 222        $(Q)$(MAKE) $(build)=arch/sh/tools include/generated/machtypes.h
 223
 224archclean:
 225        $(Q)$(MAKE) $(clean)=$(boot)
 226        $(Q)$(MAKE) $(clean)=arch/sh/kernel/vsyscall
 227
 228define archhelp
 229        @echo '  zImage                    - Compressed kernel image'
 230        @echo '  romImage                  - Compressed ROM image, if supported'
 231        @echo '  vmlinux.srec              - Create an ELF S-record'
 232        @echo '  vmlinux.bin               - Create an uncompressed binary image'
 233        @echo '* uImage                    - Alias to bootable U-Boot image'
 234        @echo '  uImage.srec               - Create an S-record for U-Boot'
 235        @echo '  uImage.bin                - Kernel-only image for U-Boot (bin)'
 236        @echo '* uImage.gz                 - Kernel-only image for U-Boot (gzip)'
 237        @echo '  uImage.bz2                - Kernel-only image for U-Boot (bzip2)'
 238        @echo '  uImage.lzma               - Kernel-only image for U-Boot (lzma)'
 239        @echo '  uImage.xz                 - Kernel-only image for U-Boot (xz)'
 240        @echo '  uImage.lzo                - Kernel-only image for U-Boot (lzo)'
 241endef
 242
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