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 LDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic
  17 CPPFLAGS        += -Iarch/$(ARCH)
  18 AFLAGS          += -Iarch/$(ARCH)
  19 cflags-y        += -Iarch/$(ARCH) -msoft-float -pipe \
  20                 -ffixed-r2 -Wno-uninitialized -mmultiple
  21 CPP             = $(CC) -E $(CFLAGS)
  22
  23 ifndef CONFIG_E500
  24 cflags-y        += -mstring
  25 endif
  26
  27 cflags-$(CONFIG_4xx)            += -Wa,-m405
  28 cflags-$(CONFIG_E500)           += -Wa,-me500
  29 cflags-$(CONFIG_PPC64BRIDGE)    += -Wa,-mppc64bridge
  30
  31 CFLAGS += $(cflags-y)
  32
  33 head-y                          := arch/ppc/kernel/head.o
  34 head-$(CONFIG_8xx)              := arch/ppc/kernel/head_8xx.o
  35 head-$(CONFIG_4xx)              := arch/ppc/kernel/head_4xx.o
  36 head-$(CONFIG_44x)              := arch/ppc/kernel/head_44x.o
  37 head-$(CONFIG_E500)             := arch/ppc/kernel/head_e500.o
  38
  39 head-$(CONFIG_6xx)              += arch/ppc/kernel/idle_6xx.o
  40 head-$(CONFIG_POWER4)           += arch/ppc/kernel/idle_power4.o
  41
  42 core-y                          += arch/ppc/kernel/ arch/ppc/platforms/ \
  43                                    arch/ppc/mm/ arch/ppc/lib/ arch/ppc/syslib/
  44 core-$(CONFIG_4xx)              += arch/ppc/platforms/4xx/
  45 core-$(CONFIG_85xx)             += arch/ppc/platforms/85xx/
  46 core-$(CONFIG_MATH_EMULATION)   += arch/ppc/math-emu/
  47 core-$(CONFIG_XMON)             += arch/ppc/xmon/
  48 core-$(CONFIG_APUS)             += arch/ppc/amiga/
  49 drivers-$(CONFIG_8xx)           += arch/ppc/8xx_io/
  50 drivers-$(CONFIG_4xx)           += arch/ppc/4xx_io/
  51 drivers-$(CONFIG_8260)          += arch/ppc/8260_io/
  52
  53 BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
  54
  55 .PHONY: $(BOOT_TARGETS)
  56
  57 all: zImage
  58
  59 AFLAGS_vmlinux.lds.o    := -Upowerpc
  60
  61 # All the instructions talk about "make bzImage".
  62 bzImage: zImage
  63         cp vmlinux arch/ppc/boot/bzImage
  64
  65 boot := arch/$(ARCH)/boot
  66
  67 $(BOOT_TARGETS): vmlinux
  68         $(Q)$(MAKE) $(build)=$(boot) $@
  69
  70 uImage: vmlinux
  71         $(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@
  72
  73 define archhelp
  74   @echo '* zImage          - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)'
  75   @echo '  uImage          - Create a bootable image for U-Boot / PPCBoot'
  76   @echo '  install         - Install kernel using'
  77   @echo '                    (your) ~/bin/installkernel or'
  78   @echo '                    (distribution) /sbin/installkernel or'
  79   @echo '                    install to $$(INSTALL_PATH) and run lilo'
  80   @echo '  *_defconfig     - Select default config from arch/$(ARCH)/ppc/configs'
  81 endef
  82
  83 archclean:
  84         $(Q)$(MAKE) $(clean)=arch/ppc/boot
  85
  86 prepare: include/asm-$(ARCH)/offsets.h checkbin
  87
  88 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
  89                                    include/config/MARKER
  90
  91 include/asm-$(ARCH)/offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
  92         $(call filechk,gen-asm-offsets)
  93
  94 ifdef CONFIG_6xx
  95 # Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later
  96 NEW_AS  := $(shell echo dssall | $(AS) -many -o /dev/null >/dev/null 2>&1 ; echo $$?)
  97 GOODVER := 2.12.1
  98 else
  99 NEW_AS  := 0
 100 endif
 101
 102 ifneq ($(NEW_AS),0)
 103 checkbin:
 104         @echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '
 105         @echo 'correctly with old versions of binutils.'
 106         @echo '*** Please upgrade your binutils to ${GOODVER} or newer'
 107         @false
 108 else
 109 checkbin:
 110         @true
 111 endif
 112
 113 CLEAN_FILES +=  include/asm-$(ARCH)/offsets.h \
 114                 arch/$(ARCH)/kernel/asm-offsets.s