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 isa-$(CONFIG_SH_DSP)                    := $(isa-y)-dsp
  22
  23 cflags-$(CONFIG_CPU_SH2)                := $(call cc-option,-m2,)
  24 cflags-$(CONFIG_CPU_SH2A)               += $(call cc-option,-m2a,) \
  25                                            $(call cc-option,-m2a-nofpu,)
  26 cflags-$(CONFIG_CPU_SH3)                := $(call cc-option,-m3,)
  27 cflags-$(CONFIG_CPU_SH4)                := $(call cc-option,-m4,) \
  28         $(call cc-option,-mno-implicit-fp,-m4-nofpu)
  29 cflags-$(CONFIG_CPU_SH4A)               += $(call cc-option,-m4a,) \
  30                                            $(call cc-option,-m4a-nofpu,)
  31 cflags-$(CONFIG_CPU_SH5)                := $(call cc-option,-m5-32media-nofpu,)
  32
  33 ifeq ($(cflags-y),)
  34 #
  35 # In the case where we are stuck with a compiler that has been uselessly
  36 # restricted to a particular ISA, a favourite default of newer GCCs when
  37 # extensive multilib targets are not provided, ensure we get the best fit
  38 # regarding FP generation. This is necessary to avoid references to FP
  39 # variants in libgcc where integer variants exist, which otherwise result
  40 # in link errors. This is intentionally stupid (albeit many orders of
  41 # magnitude less than GCC's default behaviour), as anything with a large
  42 # number of multilib targets better have been built correctly for
  43 # the target in mind.
  44 #
  45 cflags-y        += $(shell $(CC) $(KBUILD_CFLAGS) -print-multi-lib | \
  46                      grep nofpu | sed q | sed -e 's/^/-/;s/;.*$$//')
  47 endif
  48
  49 cflags-$(CONFIG_CPU_BIG_ENDIAN)         += -mb
  50 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)      += -ml
  51
  52 cflags-y        += $(call cc-option,-mno-fdpic)
  53
  54 #
  55 # -Wa,-isa= tuning implies -Wa,-dsp for the versions of binutils that
  56 # support it, while -Wa,-dsp by itself limits the range of usable opcodes
  57 # on certain CPU subtypes. Try the ISA variant first, and if that fails,
  58 # fall back on -Wa,-dsp for the old binutils versions. Even without DSP
  59 # opcodes, we always want the best ISA tuning the version of binutils
  60 # will provide.
  61 #
  62 isaflags-y      := $(call as-option,-Wa$(comma)-isa=$(isa-y),)
  63
  64 isaflags-$(CONFIG_SH_DSP)               := \
  65         $(call as-option,-Wa$(comma)-isa=$(isa-y),-Wa$(comma)-dsp)
  66
  67 cflags-y        += $(isaflags-y) -ffreestanding
  68
  69 cflags-$(CONFIG_MORE_COMPILE_OPTIONS)   += \
  70         $(shell echo $(CONFIG_COMPILE_OPTIONS) | sed -e 's/"//g')
  71
  72 OBJCOPYFLAGS    := -O binary -R .note -R .note.gnu.build-id -R .comment \
  73                    -R .stab -R .stabstr -S
  74
  75 # Give the various platforms the opportunity to set default image types
  76 defaultimage-$(CONFIG_SUPERH32)                 := zImage
  77 defaultimage-$(CONFIG_SH_SH7785LCR)             := uImage
  78
  79 # Set some sensible Kbuild defaults
  80 KBUILD_DEFCONFIG        := shx3_defconfig
  81 KBUILD_IMAGE            := $(defaultimage-y)
  82
  83 #
  84 # Choosing incompatible machines durings configuration will result in
  85 # error messages during linking.
  86 #
  87 ifdef CONFIG_SUPERH32
  88 UTS_MACHINE     := sh
  89 LDFLAGS_vmlinux += -e _stext
  90 else
  91 UTS_MACHINE     := sh64
  92 LDFLAGS_vmlinux += --defsym phys_stext=_stext-$(CONFIG_PAGE_OFFSET) \
  93                    --defsym phys_stext_shmedia=phys_stext+1 \
  94                    -e phys_stext_shmedia
  95 endif
  96
  97 ifdef CONFIG_CPU_LITTLE_ENDIAN
  98 LDFLAGS_vmlinux         += --defsym 'jiffies=jiffies_64'
  99 LDFLAGS                 += -EL
 100 else
 101 LDFLAGS_vmlinux         += --defsym 'jiffies=jiffies_64+4'
 102 LDFLAGS                 += -EB
 103 endif
 104
 105 head-y                  := arch/sh/kernel/init_task.o
 106 head-$(CONFIG_SUPERH32) += arch/sh/kernel/head_32.o
 107 head-$(CONFIG_SUPERH64) += arch/sh/kernel/head_64.o
 108
 109 core-y                          += arch/sh/kernel/ arch/sh/mm/ arch/sh/boards/
 110 core-$(CONFIG_SH_FPU_EMU)       += arch/sh/math-emu/
 111
 112 # Mach groups
 113 machdir-$(CONFIG_SOLUTION_ENGINE)               += mach-se
 114 machdir-$(CONFIG_SH_HP6XX)                      += mach-hp6xx
 115 machdir-$(CONFIG_SH_DREAMCAST)                  += mach-dreamcast
 116 machdir-$(CONFIG_SH_SH03)                       += mach-sh03
 117 machdir-$(CONFIG_SH_SECUREEDGE5410)             += mach-snapgear
 118 machdir-$(CONFIG_SH_RTS7751R2D)                 += mach-r2d
 119 machdir-$(CONFIG_SH_7751_SYSTEMH)               += mach-systemh
 120 machdir-$(CONFIG_SH_EDOSK7705)                  += mach-edosk7705
 121 machdir-$(CONFIG_SH_HIGHLANDER)                 += mach-highlander
 122 machdir-$(CONFIG_SH_MIGOR)                      += mach-migor
 123 machdir-$(CONFIG_SH_SDK7780)                    += mach-sdk7780
 124 machdir-$(CONFIG_SH_X3PROTO)                    += mach-x3proto
 125 machdir-$(CONFIG_SH_SH7763RDP)                  += mach-sh7763rdp
 126 machdir-$(CONFIG_SH_SH4202_MICRODEV)            += mach-microdev
 127 machdir-$(CONFIG_SH_LANDISK)                    += mach-landisk
 128 machdir-$(CONFIG_SH_TITAN)                      += mach-titan
 129 machdir-$(CONFIG_SH_LBOX_RE2)                   += mach-lboxre2
 130 machdir-$(CONFIG_SH_CAYMAN)                     += mach-cayman
 131
 132 ifneq ($(machdir-y),)
 133 core-y  += $(addprefix arch/sh/boards/, \
 134              $(filter-out ., $(patsubst %,%/,$(machdir-y))))
 135 endif
 136
 137 # Common machine type headers. Not part of the arch/sh/boards/ hierarchy.
 138 machdir-y       += mach-common
 139
 140 # Companion chips
 141 core-$(CONFIG_HD6446X_SERIES)   += arch/sh/cchips/hd6446x/
 142
 143 #
 144 # CPU header paths
 145 #
 146 # These are ordered by optimization level. A CPU family that is a subset
 147 # of another (ie, SH-2A / SH-2), is picked up first, with increasing
 148 # levels of genericness if nothing more suitable is situated in the
 149 # hierarchy.
 150 #
 151 # As an example, in order of preference, SH-2A > SH-2 > common definitions.
 152 #
 153 cpuincdir-$(CONFIG_CPU_SH2A)    += cpu-sh2a
 154 cpuincdir-$(CONFIG_CPU_SH2)     += cpu-sh2
 155 cpuincdir-$(CONFIG_CPU_SH3)     += cpu-sh3
 156 cpuincdir-$(CONFIG_CPU_SH4)     += cpu-sh4
 157 cpuincdir-$(CONFIG_CPU_SH5)     += cpu-sh5
 158 cpuincdir-y                     += cpu-common   # Must be last
 159
 160 drivers-y                       += arch/sh/drivers/
 161 drivers-$(CONFIG_OPROFILE)      += arch/sh/oprofile/
 162
 163 boot := arch/sh/boot
 164
 165 cflags-y        += $(foreach d, $(cpuincdir-y), -Iarch/sh/include/$(d)) \
 166                    $(foreach d, $(machdir-y), -Iarch/sh/include/$(d))
 167
 168 KBUILD_CFLAGS           += -pipe $(cflags-y)
 169 KBUILD_CPPFLAGS         += $(cflags-y)
 170 KBUILD_AFLAGS           += $(cflags-y)
 171
 172 LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 173
 174 libs-$(CONFIG_SUPERH32)         := arch/sh/lib/ $(libs-y)
 175 libs-$(CONFIG_SUPERH64)         := arch/sh/lib64/ $(libs-y)
 176 libs-y                          += $(LIBGCC)
 177
 178 PHONY += maketools FORCE
 179
 180 maketools:  include/linux/version.h FORCE
 181         $(Q)$(MAKE) $(build)=arch/sh/tools include/asm-sh/machtypes.h
 182
 183 all: $(KBUILD_IMAGE)
 184
 185 zImage uImage uImage.srec vmlinux.srec: vmlinux
 186         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 187
 188 compressed: zImage
 189
 190 archprepare: maketools arch/sh/lib64/syscalltab.h
 191
 192 archclean:
 193         $(Q)$(MAKE) $(clean)=$(boot)
 194
 195 define archhelp
 196         @echo '* zImage                    - Compressed kernel image'
 197         @echo '  vmlinux.srec              - Create an ELF S-record'
 198         @echo '  uImage                    - Create a bootable image for U-Boot'
 199         @echo '  uImage.srec               - Create an S-record for U-Boot'
 200 endef
 201
 202 define filechk_gen-syscalltab
 203        (set -e; \
 204         echo "/*"; \
 205         echo " * DO NOT MODIFY."; \
 206         echo " *"; \
 207         echo " * This file was generated by arch/sh/Makefile"; \
 208         echo " * Any changes will be reverted at build time."; \
 209         echo " */"; \
 210         echo ""; \
 211         echo "#ifndef __SYSCALLTAB_H"; \
 212         echo "#define __SYSCALLTAB_H"; \
 213         echo ""; \
 214         echo "#include <linux/kernel.h>"; \
 215         echo ""; \
 216         echo "struct syscall_info {"; \
 217         echo "  const char *name;"; \
 218         echo "} syscall_info_table[] = {"; \
 219         sed -e '/^.*\.long /!d;s//      { "/;s/\(\([^/]*\)\/\)\{1\}.*/\2/; \
 220                 s/[ \t]*$$//g;s/$$/" },/;s/\("\)sys_/\1/g'; \
 221         echo "};"; \
 222         echo ""; \
 223         echo "#define NUM_SYSCALL_INFO_ENTRIES ARRAY_SIZE(syscall_info_table)";\
 224         echo ""; \
 225         echo "#endif /* __SYSCALLTAB_H */" )
 226 endef
 227
 228 arch/sh/lib64/syscalltab.h: arch/sh/kernel/syscalls_64.S
 229         $(call filechk,gen-syscalltab)
 230
 231 CLEAN_FILES += arch/sh/lib64/syscalltab.h \
 232                include/asm-sh/machtypes.h