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 isa-y                                   := any
  13 isa-$(CONFIG_SH_DSP)                    := sh
  14 isa-$(CONFIG_CPU_SH2)                   := sh2
  15 isa-$(CONFIG_CPU_SH2A)                  := sh2a
  16 isa-$(CONFIG_CPU_SH3)                   := sh3
  17 isa-$(CONFIG_CPU_SH4)                   := sh4
  18 isa-$(CONFIG_CPU_SH4A)                  := sh4a
  19 isa-$(CONFIG_CPU_SH4AL_DSP)             := sh4al
  20 isa-$(CONFIG_CPU_SH5)                   := shmedia
  21
  22 ifeq ($(CONFIG_SUPERH32),y)
  23 isa-$(CONFIG_SH_DSP)                    := $(isa-y)-dsp
  24 isa-y                                   := $(isa-y)-up
  25 endif
  26
  27 cflags-$(CONFIG_CPU_SH2)                := $(call cc-option,-m2,)
  28 cflags-$(CONFIG_CPU_SH2A)               += $(call cc-option,-m2a,) \
  29                                            $(call cc-option,-m2a-nofpu,)
  30 cflags-$(CONFIG_CPU_SH3)                := $(call cc-option,-m3,)
  31 cflags-$(CONFIG_CPU_SH4)                := $(call cc-option,-m4,) \
  32         $(call cc-option,-mno-implicit-fp,-m4-nofpu)
  33 cflags-$(CONFIG_CPU_SH4A)               += $(call cc-option,-m4a,) \
  34                                            $(call cc-option,-m4a-nofpu,)
  35 cflags-$(CONFIG_CPU_SH4AL_DSP)          += $(call cc-option,-m4al,)
  36 cflags-$(CONFIG_CPU_SH5)                := $(call cc-option,-m5-32media-nofpu,)
  37
  38 ifeq ($(cflags-y),)
  39 #
  40 # In the case where we are stuck with a compiler that has been uselessly
  41 # restricted to a particular ISA, a favourite default of newer GCCs when
  42 # extensive multilib targets are not provided, ensure we get the best fit
  43 # regarding FP generation. This is intentionally stupid (albeit many
  44 # orders of magnitude less than GCC's default behaviour), as anything
  45 # with a large number of multilib targets better have been built
  46 # correctly for the target in mind.
  47 #
  48 cflags-y        += $(shell $(CC) $(KBUILD_CFLAGS) -print-multi-lib | \
  49                      grep nofpu | sed q | sed -e 's/^/-/;s/;.*$$//')
  50 # At this point, anything goes.
  51 isaflags-y      := $(call as-option,-Wa$(comma)-isa=any,)
  52 else
  53 #
  54 # -Wa,-isa= tuning implies -Wa,-dsp for the versions of binutils that
  55 # support it, while -Wa,-dsp by itself limits the range of usable opcodes
  56 # on certain CPU subtypes. Try the ISA variant first, and if that fails,
  57 # fall back on -Wa,-dsp for the old binutils versions. Even without DSP
  58 # opcodes, we always want the best ISA tuning the version of binutils
  59 # will provide.
  60 #
  61 isaflags-y      := $(call as-option,-Wa$(comma)-isa=$(isa-y),)
  62
  63 isaflags-$(CONFIG_SH_DSP)               := \
  64         $(call as-option,-Wa$(comma)-isa=$(isa-y),-Wa$(comma)-dsp)
  65 endif
  66
  67 cflags-$(CONFIG_CPU_BIG_ENDIAN)         += -mb
  68 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)      += -ml
  69
  70 cflags-y        += $(call cc-option,-mno-fdpic)
  71 cflags-y        += $(isaflags-y) -ffreestanding
  72
  73 OBJCOPYFLAGS    := -O binary -R .note -R .note.gnu.build-id -R .comment \
  74                    -R .stab -R .stabstr -S
  75
  76 # Give the various platforms the opportunity to set default image types
  77 defaultimage-$(CONFIG_SUPERH32)                 := zImage
  78 defaultimage-$(CONFIG_SH_SH7785LCR)             := uImage
  79 defaultimage-$(CONFIG_SH_RSK)                   := uImage
  80 defaultimage-$(CONFIG_SH_URQUELL)               := uImage
  81 defaultimage-$(CONFIG_SH_7206_SOLUTION_ENGINE)  := vmlinux
  82 defaultimage-$(CONFIG_SH_7619_SOLUTION_ENGINE)  := vmlinux
  83
  84 # Set some sensible Kbuild defaults
  85 KBUILD_IMAGE            := $(defaultimage-y)
  86
  87 #
  88 # Choosing incompatible machines durings configuration will result in
  89 # error messages during linking.
  90 #
  91 ifdef CONFIG_SUPERH32
  92 UTS_MACHINE             := sh
  93 BITS                    := 32
  94 LDFLAGS_vmlinux         += -e _stext
  95 KBUILD_DEFCONFIG        := shx3_defconfig
  96 else
  97 UTS_MACHINE             := sh64
  98 BITS                    := 64
  99 LDFLAGS_vmlinux         += --defsym phys_stext=_stext-$(CONFIG_PAGE_OFFSET) \
 100                            --defsym phys_stext_shmedia=phys_stext+1 \
 101                            -e phys_stext_shmedia
 102 KBUILD_DEFCONFIG        := cayman_defconfig
 103 endif
 104
 105 ifneq ($(SUBARCH),$(ARCH))
 106   ifeq ($(CROSS_COMPILE),)
 107     CROSS_COMPILE := $(call cc-cross-prefix, $(UTS_MACHINE)-linux-  $(UTS_MACHINE)-linux-gnu-  $(UTS_MACHINE)-unknown-linux-gnu-)
 108   endif
 109 endif
 110
 111 ifdef CONFIG_CPU_LITTLE_ENDIAN
 112 ld-bfd                  := elf32-$(UTS_MACHINE)-linux
 113 LDFLAGS_vmlinux         += --defsym 'jiffies=jiffies_64' --oformat $(ld-bfd)
 114 LDFLAGS                 += -EL
 115 else
 116 ld-bfd                  := elf32-$(UTS_MACHINE)big-linux
 117 LDFLAGS_vmlinux         += --defsym 'jiffies=jiffies_64+4' --oformat $(ld-bfd)
 118 LDFLAGS                 += -EB
 119 endif
 120
 121 export ld-bfd BITS
 122
 123 head-y  := arch/sh/kernel/init_task.o arch/sh/kernel/head_$(BITS).o
 124
 125 core-y                          += arch/sh/kernel/ arch/sh/mm/ arch/sh/boards/
 126 core-$(CONFIG_SH_FPU_EMU)       += arch/sh/math-emu/
 127
 128 # Mach groups
 129 machdir-$(CONFIG_SOLUTION_ENGINE)               += mach-se
 130 machdir-$(CONFIG_SH_HP6XX)                      += mach-hp6xx
 131 machdir-$(CONFIG_SH_DREAMCAST)                  += mach-dreamcast
 132 machdir-$(CONFIG_SH_SH03)                       += mach-sh03
 133 machdir-$(CONFIG_SH_SECUREEDGE5410)             += mach-snapgear
 134 machdir-$(CONFIG_SH_RTS7751R2D)                 += mach-r2d
 135 machdir-$(CONFIG_SH_7751_SYSTEMH)               += mach-systemh
 136 machdir-$(CONFIG_SH_EDOSK7705)                  += mach-edosk7705
 137 machdir-$(CONFIG_SH_HIGHLANDER)                 += mach-highlander
 138 machdir-$(CONFIG_SH_MIGOR)                      += mach-migor
 139 machdir-$(CONFIG_SH_KFR2R09)                    += mach-kfr2r09
 140 machdir-$(CONFIG_SH_ECOVEC)                     += mach-ecovec24
 141 machdir-$(CONFIG_SH_SDK7780)                    += mach-sdk7780
 142 machdir-$(CONFIG_SH_X3PROTO)                    += mach-x3proto
 143 machdir-$(CONFIG_SH_SH7763RDP)                  += mach-sh7763rdp
 144 machdir-$(CONFIG_SH_SH4202_MICRODEV)            += mach-microdev
 145 machdir-$(CONFIG_SH_LANDISK)                    += mach-landisk
 146 machdir-$(CONFIG_SH_TITAN)                      += mach-titan
 147 machdir-$(CONFIG_SH_LBOX_RE2)                   += mach-lboxre2
 148 machdir-$(CONFIG_SH_CAYMAN)                     += mach-cayman
 149 machdir-$(CONFIG_SH_RSK)                        += mach-rsk
 150
 151 ifneq ($(machdir-y),)
 152 core-y  += $(addprefix arch/sh/boards/, \
 153              $(filter-out ., $(patsubst %,%/,$(machdir-y))))
 154 endif
 155
 156 # Common machine type headers. Not part of the arch/sh/boards/ hierarchy.
 157 machdir-y       += mach-common
 158
 159 # Companion chips
 160 core-$(CONFIG_HD6446X_SERIES)   += arch/sh/cchips/hd6446x/
 161
 162 #
 163 # CPU header paths
 164 #
 165 # These are ordered by optimization level. A CPU family that is a subset
 166 # of another (ie, SH-2A / SH-2), is picked up first, with increasing
 167 # levels of genericness if nothing more suitable is situated in the
 168 # hierarchy.
 169 #
 170 # As an example, in order of preference, SH-2A > SH-2 > common definitions.
 171 #
 172 cpuincdir-$(CONFIG_CPU_SH2A)    += cpu-sh2a
 173 cpuincdir-$(CONFIG_CPU_SH2)     += cpu-sh2
 174 cpuincdir-$(CONFIG_CPU_SH3)     += cpu-sh3
 175 cpuincdir-$(CONFIG_CPU_SH4)     += cpu-sh4
 176 cpuincdir-$(CONFIG_CPU_SH5)     += cpu-sh5
 177 cpuincdir-y                     += cpu-common   # Must be last
 178
 179 drivers-y                       += arch/sh/drivers/
 180 drivers-$(CONFIG_OPROFILE)      += arch/sh/oprofile/
 181
 182 boot := arch/sh/boot
 183
 184 cflags-y        += $(foreach d, $(cpuincdir-y), -Iarch/sh/include/$(d)) \
 185                    $(foreach d, $(machdir-y), -Iarch/sh/include/$(d))
 186
 187 KBUILD_CFLAGS           += -pipe $(cflags-y)
 188 KBUILD_CPPFLAGS         += $(cflags-y)
 189 KBUILD_AFLAGS           += $(cflags-y)
 190
 191 ifeq ($(CONFIG_MCOUNT),y)
 192   KBUILD_CFLAGS += -pg
 193 endif
 194
 195 ifeq ($(CONFIG_DWARF_UNWINDER),y)
 196   KBUILD_CFLAGS += -fasynchronous-unwind-tables
 197 endif
 198
 199 libs-$(CONFIG_SUPERH32)         := arch/sh/lib/ $(libs-y)
 200 libs-$(CONFIG_SUPERH64)         := arch/sh/lib64/ $(libs-y)
 201
 202 BOOT_TARGETS = uImage uImage.bz2 uImage.gz uImage.lzma uImage.srec \
 203                zImage vmlinux.srec romImage
 204 PHONY += $(BOOT_TARGETS)
 205
 206 all: $(KBUILD_IMAGE)
 207
 208 $(BOOT_TARGETS): vmlinux
 209         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 210
 211 compressed: zImage
 212
 213 archprepare:
 214         $(Q)$(MAKE) $(build)=arch/sh/tools include/generated/machtypes.h
 215
 216 archclean:
 217         $(Q)$(MAKE) $(clean)=$(boot)
 218         $(Q)$(MAKE) $(clean)=arch/sh/kernel/vsyscall
 219
 220 define archhelp
 221         @echo '  zImage                    - Compressed kernel image'
 222         @echo '  romImage                  - Compressed ROM image, if supported'
 223         @echo '  vmlinux.srec              - Create an ELF S-record'
 224         @echo '* uImage                    - Alias to bootable U-Boot image'
 225         @echo '  uImage.srec               - Create an S-record for U-Boot'
 226         @echo '* uImage.gz                 - Kernel-only image for U-Boot (gzip)'
 227         @echo '  uImage.bz2                - Kernel-only image for U-Boot (bzip2)'
 228         @echo '  uImage.lzma               - Kernel-only image for U-Boot (lzma)'
 229 endef