1 # This file is included by the global makefile so that you can add your own
2 # architecture-specific flags and dependencies.
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
8 # Copyright (C) 1994 by Linus Torvalds
9 # Changes for PPC by Gary Thomas
10 # Rewritten by Cort Dougan and Paul Mackerras
13 # This must match PAGE_OFFSET in include/asm-ppc/page.h.
14 KERNELLOAD := $(CONFIG_KERNEL_START)
16 HAS_BIARCH := $(call cc-option-yn, -m32)
17 ifeq ($(HAS_BIARCH),y)
19 LD := $(LD) -m elf32ppc
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 \
29 CPP = $(CC) -E $(CFLAGS)
30 # Temporary hack until we have migrated to asm-powerpc
31 LINUXINCLUDE += -Iarch/$(ARCH)/include
33 CHECKFLAGS += -D__powerpc__
35 ifndef CONFIG_FSL_BOOKE
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
49 # Default to the common case.
50 KBUILD_DEFCONFIG := common_defconfig
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
58 head-$(CONFIG_6xx) += arch/ppc/kernel/idle_6xx.o
59 head-$(CONFIG_POWER4) += arch/ppc/kernel/idle_power4.o
60 head-$(CONFIG_PPC_FPU) += arch/ppc/kernel/fpu.o
62 core-y += arch/ppc/kernel/ arch/ppc/platforms/ \
63 arch/ppc/mm/ arch/ppc/lib/ arch/ppc/syslib/
64 core-$(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/
74 drivers-$(CONFIG_OPROFILE) += arch/ppc/oprofile/
76 BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
78 .PHONY: $(BOOT_TARGETS)
82 CPPFLAGS_vmlinux.lds := -Upowerpc
84 # All the instructions talk about "make bzImage".
87 boot := arch/$(ARCH)/boot
89 $(BOOT_TARGETS): vmlinux
90 $(Q)$(MAKE) $(build)=$(boot) $@
93 $(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@
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'
106 $(Q)$(MAKE) $(clean)=arch/ppc/boot
107 # Temporary hack until we have migrated to asm-powerpc
108 $(Q)rm -rf arch/$(ARCH)/include
110 archprepare: checkbin
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
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
123 # gcc-3.4 and binutils-2.14 are a fatal combination.
124 GCC_VERSION := $(call cc-version)
127 @if test "$(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'; \
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' ; \
142 CLEAN_FILES += $(TOUT)