arch/ppc64/Makefile

   1 # This file is included by the global makefile so that you can add your own
   2 # architecture-specific flags and dependencies. Remember to do have actions
   3 # for "archclean" and "archdep" for cleaning up and making dependencies for
   4 # this architecture
   5 #
   6 # This file is subject to the terms and conditions of the GNU General Public
   7 # License.  See the file "COPYING" in the main directory of this archive
   8 # for more details.
   9 #
  10 # Copyright (C) 1994 by Linus Torvalds
  11 # Changes for PPC by Gary Thomas
  12 # Rewritten by Cort Dougan and Paul Mackerras
  13 # Adjusted for PPC64 by Tom Gall
  14 #
  15
  16 KERNELLOAD      := 0xc000000000000000
  17
  18 HAS_BIARCH      := $(shell if $(CC) -m64 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi;)
  19 ifeq ($(HAS_BIARCH),y)
  20 AS              := $(AS) -64
  21 LD              := $(LD) -m elf64ppc
  22 CC              := $(CC) -m64
  23 endif
  24
  25 CHECK           := $(CHECK) -m64 -D__powerpc__=1
  26
  27 LDFLAGS         := -m elf64ppc
  28 LDFLAGS_vmlinux := -Bstatic -e $(KERNELLOAD) -Ttext $(KERNELLOAD)
  29 CFLAGS          += -msoft-float -pipe -Wno-uninitialized -mminimal-toc \
  30                    -mtraceback=none
  31
  32 ifeq ($(CONFIG_POWER4_ONLY),y)
  33         CFLAGS += $(call check_gcc,-mcpu=power4,)
  34 else
  35         CFLAGS += $(call check_gcc,-mtune=power4,)
  36 endif
  37
  38 # Enable unit-at-a-time mode when possible. It shrinks the
  39 # kernel considerably.
  40 CFLAGS += $(call check_gcc,-funit-at-a-time,)
  41
  42 head-y := arch/ppc64/kernel/head.o
  43
  44 libs-y                          += arch/ppc64/lib/
  45 core-y                          += arch/ppc64/kernel/
  46 core-y                          += arch/ppc64/mm/
  47 core-$(CONFIG_XMON)             += arch/ppc64/xmon/
  48 drivers-$(CONFIG_OPROFILE)      += arch/ppc64/oprofile/
  49
  50 boot := arch/ppc64/boot
  51 bzImage: vmlinux
  52         cp vmlinux arch/ppc64/boot/bzImage
  53
  54 boottarget-$(CONFIG_PPC_PSERIES) := zImage zImage.initrd
  55 boottarget-$(CONFIG_PPC_ISERIES) := vmlinux.sminitrd vmlinux.initrd vmlinux.sm
  56 $(boottarget-y): vmlinux
  57         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
  58
  59 bootimage-$(CONFIG_PPC_PSERIES) := zImage
  60 bootimage-$(CONFIG_PPC_ISERIES) := vmlinux
  61 BOOTIMAGE := $(bootimage-y)
  62 install: vmlinux
  63         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
  64
  65 all: $(BOOTIMAGE)
  66
  67 archclean:
  68         $(Q)$(MAKE) $(clean)=$(boot)
  69
  70 prepare: include/asm-ppc64/offsets.h
  71
  72 arch/ppc64/kernel/asm-offsets.s: include/asm include/linux/version.h \
  73                                    include/config/MARKER
  74
  75 include/asm-ppc64/offsets.h: arch/ppc64/kernel/asm-offsets.s
  76         $(call filechk,gen-asm-offsets)
  77
  78 define archhelp
  79   echo  '* zImage       - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
  80   echo  '  zImage.initrd- Compressed kernel image with initrd attached,'
  81   echo  '                  sourced from arch/$(ARCH)/boot/ramdisk.image.gz'
  82   echo  '                  (arch/$(ARCH)/boot/zImage.initrd)'
  83 endef
  84
  85 CLEAN_FILES += include/asm-ppc64/offsets.h