arch/ppc/Makefile

   1 # This file is included by the global makefile so that you can add your own
   2 # architecture-specific flags and dependencies.
   3 #
   4 # This file is subject to the terms and conditions of the GNU General Public
   5 # License.  See the file "COPYING" in the main directory of this archive
   6 # for more details.
   7 #
   8 # Copyright (C) 1994 by Linus Torvalds
   9 # Changes for PPC by Gary Thomas
  10 # Rewritten by Cort Dougan and Paul Mackerras
  11 #
  12
  13 # This must match PAGE_OFFSET in include/asm-ppc/page.h.
  14 KERNELLOAD      := $(CONFIG_KERNEL_START)
  15
  16 HAS_BIARCH      := $(call cc-option-yn, -m32)
  17 ifeq ($(HAS_BIARCH),y)
  18 AS              := $(AS) -a32
  19 LD              := $(LD) -m elf32ppc
  20 CC              := $(CC) -m32
  21 endif
  22
  23 LDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic
  24 # The -Iarch/$(ARCH)/include is temporary while we are merging
  25 CPPFLAGS        += -Iarch/$(ARCH) -Iarch/$(ARCH)/include
  26 AFLAGS          += -Iarch/$(ARCH)
  27 CFLAGS          += -Iarch/$(ARCH) -msoft-float -pipe \
  28                 -ffixed-r2 -mmultiple
  29 CPP             = $(CC) -E $(CFLAGS)
  30 # Temporary hack until we have migrated to asm-powerpc
  31 LINUXINCLUDE    += -Iarch/$(ARCH)/include
  32
  33 CHECKFLAGS      += -D__powerpc__
  34
  35 ifndef CONFIG_FSL_BOOKE
  36 CFLAGS          += -mstring
  37 endif
  38
  39 cpu-as-$(CONFIG_PPC64BRIDGE)    += -Wa,-mppc64bridge
  40 cpu-as-$(CONFIG_4xx)            += -Wa,-m405
  41 cpu-as-$(CONFIG_6xx)            += -Wa,-maltivec
  42 cpu-as-$(CONFIG_POWER4)         += -Wa,-maltivec
  43 cpu-as-$(CONFIG_E500)           += -Wa,-me500
  44 cpu-as-$(CONFIG_E200)           += -Wa,-me200
  45
  46 AFLAGS += $(cpu-as-y)
  47 CFLAGS += $(cpu-as-y)
  48
  49 # Default to the common case.
  50 KBUILD_DEFCONFIG := common_defconfig
  51
  52 head-y                          := arch/ppc/kernel/head.o
  53 head-$(CONFIG_8xx)              := arch/ppc/kernel/head_8xx.o
  54 head-$(CONFIG_4xx)              := arch/ppc/kernel/head_4xx.o
  55 head-$(CONFIG_44x)              := arch/ppc/kernel/head_44x.o
  56 head-$(CONFIG_FSL_BOOKE)        := arch/ppc/kernel/head_fsl_booke.o
  57
  58 head-$(CONFIG_6xx)              += arch/ppc/kernel/idle_6xx.o
  59 head-$(CONFIG_POWER4)           += arch/ppc/kernel/idle_power4.o
  60 head-$(CONFIG_PPC_FPU)          += arch/ppc/kernel/fpu.o
  61
  62 core-y                          += arch/ppc/kernel/ arch/ppc/platforms/ \
  63                                    arch/ppc/mm/ arch/ppc/lib/ arch/ppc/syslib/
  64 core-$(CONFIG_4xx)              += arch/ppc/platforms/4xx/
  65 core-$(CONFIG_83xx)             += arch/ppc/platforms/83xx/
  66 core-$(CONFIG_85xx)             += arch/ppc/platforms/85xx/
  67 core-$(CONFIG_MATH_EMULATION)   += arch/ppc/math-emu/
  68 core-$(CONFIG_XMON)             += arch/ppc/xmon/
  69 core-$(CONFIG_APUS)             += arch/ppc/amiga/
  70 drivers-$(CONFIG_8xx)           += arch/ppc/8xx_io/
  71 drivers-$(CONFIG_4xx)           += arch/ppc/4xx_io/
  72 drivers-$(CONFIG_CPM2)          += arch/ppc/8260_io/
  73
  74 drivers-$(CONFIG_OPROFILE)      += arch/ppc/oprofile/
  75
  76 BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
  77
  78 .PHONY: $(BOOT_TARGETS)
  79
  80 all: uImage zImage
  81
  82 CPPFLAGS_vmlinux.lds    := -Upowerpc
  83
  84 # All the instructions talk about "make bzImage".
  85 bzImage: zImage
  86
  87 boot := arch/$(ARCH)/boot
  88
  89 $(BOOT_TARGETS): vmlinux
  90         $(Q)$(MAKE) $(build)=$(boot) $@
  91
  92 uImage: vmlinux
  93         $(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@
  94
  95 define archhelp
  96   @echo '* zImage          - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)'
  97   @echo '  uImage          - Create a bootable image for U-Boot / PPCBoot'
  98   @echo '  install         - Install kernel using'
  99   @echo '                    (your) ~/bin/installkernel or'
 100   @echo '                    (distribution) /sbin/installkernel or'
 101   @echo '                    install to $$(INSTALL_PATH) and run lilo'
 102   @echo '  *_defconfig     - Select default config from arch/$(ARCH)/ppc/configs'
 103 endef
 104
 105 archclean:
 106         $(Q)$(MAKE) $(clean)=arch/ppc/boot
 107         # Temporary hack until we have migrated to asm-powerpc
 108         $(Q)rm -rf arch/$(ARCH)/include
 109
 110 archprepare: checkbin
 111
 112 # Temporary hack until we have migrated to asm-powerpc
 113 include/asm: arch/$(ARCH)/include/asm
 114 arch/$(ARCH)/include/asm:
 115         $(Q)if [ ! -d arch/$(ARCH)/include ]; then mkdir -p arch/$(ARCH)/include; fi
 116         $(Q)ln -fsn $(srctree)/include/asm-powerpc arch/$(ARCH)/include/asm
 117
 118 # Use the file '.tmp_gas_check' for binutils tests, as gas won't output
 119 # to stdout and these checks are run even on install targets.
 120 TOUT    := .tmp_gas_check
 121 # Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec
 122 # instructions.
 123 # gcc-3.4 and binutils-2.14 are a fatal combination.
 124 GCC_VERSION     := $(call cc-version)
 125
 126 checkbin:
 127         @if test "$(GCC_VERSION)" = "0304" ; then \
 128                 if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \
 129                         echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \
 130                         echo 'correctly with gcc-3.4 and your version of binutils.'; \
 131                         echo '*** Please upgrade your binutils or downgrade your gcc'; \
 132                         false; \
 133                 fi ; \
 134         fi
 135         @if ! /bin/echo dssall | $(AS) -many -o $(TOUT) >/dev/null 2>&1 ; then \
 136                 echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \
 137                 echo 'correctly with old versions of binutils.' ; \
 138                 echo '*** Please upgrade your binutils to 2.12.1 or newer' ; \
 139                 false ; \
 140         fi
 141
 142 CLEAN_FILES += $(TOUT)
 143