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_SH5)                := $(call cc-option,-m5-32media-nofpu,)
  36
  37 ifeq ($(cflags-y),)
  38 #
  39 # In the case where we are stuck with a compiler that has been uselessly
  40 # restricted to a particular ISA, a favourite default of newer GCCs when
  41 # extensive multilib targets are not provided, ensure we get the best fit
  42 # regarding FP generation. This is necessary to avoid references to FP
  43 # variants in libgcc where integer variants exist, which otherwise result
  44 # in link errors. This is intentionally stupid (albeit many orders of
  45 # magnitude less than GCC's default behaviour), as anything with a large
  46 # number of multilib targets better have been built correctly for
  47 # the target in mind.
  48 #
  49 cflags-y        += $(shell $(CC) $(KBUILD_CFLAGS) -print-multi-lib | \
  50                      grep nofpu | sed q | sed -e 's/^/-/;s/;.*$$//')
  51 endif
  52
  53 cflags-$(CONFIG_CPU_BIG_ENDIAN)         += -mb
  54 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)      += -ml
  55
  56 cflags-y        += $(call cc-option,-mno-fdpic)
  57
  58 #
  59 # -Wa,-isa= tuning implies -Wa,-dsp for the versions of binutils that
  60 # support it, while -Wa,-dsp by itself limits the range of usable opcodes
  61 # on certain CPU subtypes. Try the ISA variant first, and if that fails,
  62 # fall back on -Wa,-dsp for the old binutils versions. Even without DSP
  63 # opcodes, we always want the best ISA tuning the version of binutils
  64 # will provide.
  65 #
  66 isaflags-y      := $(call as-option,-Wa$(comma)-isa=$(isa-y),)
  67
  68 isaflags-$(CONFIG_SH_DSP)               := \
  69         $(call as-option,-Wa$(comma)-isa=$(isa-y),-Wa$(comma)-dsp)
  70
  71 cflags-y        += $(isaflags-y) -ffreestanding
  72
  73 cflags-$(CONFIG_MORE_COMPILE_OPTIONS)   += \
  74         $(shell echo $(CONFIG_COMPILE_OPTIONS) | sed -e 's/"//g')
  75
  76 OBJCOPYFLAGS    := -O binary -R .note -R .note.gnu.build-id -R .comment \
  77                    -R .stab -R .stabstr -S
  78
  79 # Give the various platforms the opportunity to set default image types
  80 defaultimage-$(CONFIG_SUPERH32)                 := zImage
  81 defaultimage-$(CONFIG_SH_SH7785LCR)             := uImage
  82
  83 # Set some sensible Kbuild defaults
  84 KBUILD_DEFCONFIG        := shx3_defconfig
  85 KBUILD_IMAGE            := $(defaultimage-y)
  86
  87 #
  88 # Choosing incompatible machines durings configuration will result in
  89 # error messages during linking.
  90 #
  91 ifdef CONFIG_SUPERH32
  92 UTS_MACHINE     := sh
  93 LDFLAGS_vmlinux += -e _stext
  94 else
  95 UTS_MACHINE     := sh64
  96 LDFLAGS_vmlinux += --defsym phys_stext=_stext-$(CONFIG_PAGE_OFFSET) \
  97                    --defsym phys_stext_shmedia=phys_stext+1 \
  98                    -e phys_stext_shmedia
  99 endif
 100
 101 ifdef CONFIG_CPU_LITTLE_ENDIAN
 102 LDFLAGS_vmlinux         += --defsym 'jiffies=jiffies_64'
 103 LDFLAGS                 += -EL
 104 else
 105 LDFLAGS_vmlinux         += --defsym 'jiffies=jiffies_64+4'
 106 LDFLAGS                 += -EB
 107 endif
 108
 109 head-y                  := arch/sh/kernel/init_task.o
 110 head-$(CONFIG_SUPERH32) += arch/sh/kernel/head_32.o
 111 head-$(CONFIG_SUPERH64) += arch/sh/kernel/head_64.o
 112
 113 core-y                          += arch/sh/kernel/ arch/sh/mm/ arch/sh/boards/
 114 core-$(CONFIG_SH_FPU_EMU)       += arch/sh/math-emu/
 115
 116 # Mach groups
 117 machdir-$(CONFIG_SOLUTION_ENGINE)               += mach-se
 118 machdir-$(CONFIG_SH_HP6XX)                      += mach-hp6xx
 119 machdir-$(CONFIG_SH_DREAMCAST)                  += mach-dreamcast
 120 machdir-$(CONFIG_SH_SH03)                       += mach-sh03
 121 machdir-$(CONFIG_SH_SECUREEDGE5410)             += mach-snapgear
 122 machdir-$(CONFIG_SH_RTS7751R2D)                 += mach-r2d
 123 machdir-$(CONFIG_SH_7751_SYSTEMH)               += mach-systemh
 124 machdir-$(CONFIG_SH_EDOSK7705)                  += mach-edosk7705
 125 machdir-$(CONFIG_SH_HIGHLANDER)                 += mach-highlander
 126 machdir-$(CONFIG_SH_MIGOR)                      += mach-migor
 127 machdir-$(CONFIG_SH_SDK7780)                    += mach-sdk7780
 128 machdir-$(CONFIG_SH_X3PROTO)                    += mach-x3proto
 129 machdir-$(CONFIG_SH_SH7763RDP)                  += mach-sh7763rdp
 130 machdir-$(CONFIG_SH_SH4202_MICRODEV)            += mach-microdev
 131 machdir-$(CONFIG_SH_LANDISK)                    += mach-landisk
 132 machdir-$(CONFIG_SH_TITAN)                      += mach-titan
 133 machdir-$(CONFIG_SH_LBOX_RE2)                   += mach-lboxre2
 134 machdir-$(CONFIG_SH_CAYMAN)                     += mach-cayman
 135
 136 ifneq ($(machdir-y),)
 137 core-y  += $(addprefix arch/sh/boards/, \
 138              $(filter-out ., $(patsubst %,%/,$(machdir-y))))
 139 endif
 140
 141 # Common machine type headers. Not part of the arch/sh/boards/ hierarchy.
 142 machdir-y       += mach-common
 143
 144 # Companion chips
 145 core-$(CONFIG_HD6446X_SERIES)   += arch/sh/cchips/hd6446x/
 146
 147 #
 148 # CPU header paths
 149 #
 150 # These are ordered by optimization level. A CPU family that is a subset
 151 # of another (ie, SH-2A / SH-2), is picked up first, with increasing
 152 # levels of genericness if nothing more suitable is situated in the
 153 # hierarchy.
 154 #
 155 # As an example, in order of preference, SH-2A > SH-2 > common definitions.
 156 #
 157 cpuincdir-$(CONFIG_CPU_SH2A)    += cpu-sh2a
 158 cpuincdir-$(CONFIG_CPU_SH2)     += cpu-sh2
 159 cpuincdir-$(CONFIG_CPU_SH3)     += cpu-sh3
 160 cpuincdir-$(CONFIG_CPU_SH4)     += cpu-sh4
 161 cpuincdir-$(CONFIG_CPU_SH5)     += cpu-sh5
 162 cpuincdir-y                     += cpu-common   # Must be last
 163
 164 drivers-y                       += arch/sh/drivers/
 165 drivers-$(CONFIG_OPROFILE)      += arch/sh/oprofile/
 166
 167 boot := arch/sh/boot
 168
 169 cflags-y        += $(foreach d, $(cpuincdir-y), -Iarch/sh/include/$(d)) \
 170                    $(foreach d, $(machdir-y), -Iarch/sh/include/$(d))
 171
 172 KBUILD_CFLAGS           += -pipe $(cflags-y)
 173 KBUILD_CPPFLAGS         += $(cflags-y)
 174 KBUILD_AFLAGS           += $(cflags-y)
 175
 176 LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 177
 178 libs-$(CONFIG_SUPERH32)         := arch/sh/lib/ $(libs-y)
 179 libs-$(CONFIG_SUPERH64)         := arch/sh/lib64/ $(libs-y)
 180 libs-y                          += $(LIBGCC)
 181
 182 PHONY += maketools FORCE
 183
 184 maketools:  include/linux/version.h FORCE
 185         $(Q)$(MAKE) $(build)=arch/sh/tools include/asm-sh/machtypes.h
 186
 187 all: $(KBUILD_IMAGE)
 188
 189 zImage uImage uImage.srec vmlinux.srec: vmlinux
 190         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 191
 192 compressed: zImage
 193
 194 archprepare: maketools arch/sh/lib64/syscalltab.h
 195
 196 archclean:
 197         $(Q)$(MAKE) $(clean)=$(boot)
 198
 199 define archhelp
 200         @echo '* zImage                    - Compressed kernel image'
 201         @echo '  vmlinux.srec              - Create an ELF S-record'
 202         @echo '  uImage                    - Create a bootable image for U-Boot'
 203         @echo '  uImage.srec               - Create an S-record for U-Boot'
 204 endef
 205
 206 define filechk_gen-syscalltab
 207        (set -e; \
 208         echo "/*"; \
 209         echo " * DO NOT MODIFY."; \
 210         echo " *"; \
 211         echo " * This file was generated by arch/sh/Makefile"; \
 212         echo " * Any changes will be reverted at build time."; \
 213         echo " */"; \
 214         echo ""; \
 215         echo "#ifndef __SYSCALLTAB_H"; \
 216         echo "#define __SYSCALLTAB_H"; \
 217         echo ""; \
 218         echo "#include <linux/kernel.h>"; \
 219         echo ""; \
 220         echo "struct syscall_info {"; \
 221         echo "  const char *name;"; \
 222         echo "} syscall_info_table[] = {"; \
 223         sed -e '/^.*\.long /!d;s//      { "/;s/\(\([^/]*\)\/\)\{1\}.*/\2/; \
 224                 s/[ \t]*$$//g;s/$$/" },/;s/\("\)sys_/\1/g'; \
 225         echo "};"; \
 226         echo ""; \
 227         echo "#define NUM_SYSCALL_INFO_ENTRIES ARRAY_SIZE(syscall_info_table)";\
 228         echo ""; \
 229         echo "#endif /* __SYSCALLTAB_H */" )
 230 endef
 231
 232 arch/sh/lib64/syscalltab.h: arch/sh/kernel/syscalls_64.S
 233         $(call filechk,gen-syscalltab)
 234
 235 CLEAN_FILES += arch/sh/lib64/syscalltab.h \
 236                include/asm-sh/machtypes.h