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 \
30 # No AltiVec instruction when building kernel
31 CFLAGS += $(call cc-option, -mno-altivec)
33 CPP = $(CC) -E $(CFLAGS)
34 # Temporary hack until we have migrated to asm-powerpc
35 LINUXINCLUDE += -Iarch/$(ARCH)/include
37 CHECKFLAGS += -D__powerpc__
39 ifndef CONFIG_FSL_BOOKE
43 cpu-as-$(CONFIG_PPC64BRIDGE) += -Wa,-mppc64bridge
44 cpu-as-$(CONFIG_4xx) += -Wa,-m405
45 cpu-as-$(CONFIG_6xx) += -Wa,-maltivec
46 cpu-as-$(CONFIG_POWER4) += -Wa,-maltivec
47 cpu-as-$(CONFIG_E500) += -Wa,-me500
48 cpu-as-$(CONFIG_E200) += -Wa,-me200
53 # Default to the common case.
54 KBUILD_DEFCONFIG := common_defconfig
56 head-y := arch/ppc/kernel/head.o
57 head-$(CONFIG_8xx) := arch/ppc/kernel/head_8xx.o
58 head-$(CONFIG_4xx) := arch/ppc/kernel/head_4xx.o
59 head-$(CONFIG_44x) := arch/ppc/kernel/head_44x.o
60 head-$(CONFIG_FSL_BOOKE) := arch/ppc/kernel/head_fsl_booke.o
62 head-$(CONFIG_6xx) += arch/ppc/kernel/idle_6xx.o
63 head-$(CONFIG_POWER4) += arch/ppc/kernel/idle_power4.o
64 head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o
66 core-y += arch/ppc/kernel/ arch/powerpc/kernel/ \
68 arch/ppc/mm/ arch/ppc/lib/ \
69 arch/ppc/syslib/ arch/powerpc/sysdev/
70 core-$(CONFIG_4xx) += arch/ppc/platforms/4xx/
71 core-$(CONFIG_83xx) += arch/ppc/platforms/83xx/
72 core-$(CONFIG_85xx) += arch/ppc/platforms/85xx/
73 core-$(CONFIG_MATH_EMULATION) += arch/ppc/math-emu/
74 core-$(CONFIG_XMON) += arch/ppc/xmon/
75 core-$(CONFIG_APUS) += arch/ppc/amiga/
76 drivers-$(CONFIG_8xx) += arch/ppc/8xx_io/
77 drivers-$(CONFIG_4xx) += arch/ppc/4xx_io/
78 drivers-$(CONFIG_CPM2) += arch/ppc/8260_io/
80 drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/
82 BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
84 .PHONY: $(BOOT_TARGETS)
88 CPPFLAGS_vmlinux.lds := -Upowerpc
90 # All the instructions talk about "make bzImage".
93 boot := arch/$(ARCH)/boot
95 $(BOOT_TARGETS): vmlinux
96 $(Q)$(MAKE) $(build)=$(boot) $@
99 $(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@
102 @echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)'
103 @echo ' uImage - Create a bootable image for U-Boot / PPCBoot'
104 @echo ' install - Install kernel using'
105 @echo ' (your) ~/bin/installkernel or'
106 @echo ' (distribution) /sbin/installkernel or'
107 @echo ' install to $$(INSTALL_PATH) and run lilo'
108 @echo ' *_defconfig - Select default config from arch/$(ARCH)/ppc/configs'
112 $(Q)$(MAKE) $(clean)=arch/ppc/boot
113 # Temporary hack until we have migrated to asm-powerpc
114 $(Q)rm -rf arch/$(ARCH)/include
116 archprepare: checkbin
118 # Temporary hack until we have migrated to asm-powerpc
119 include/asm: arch/$(ARCH)/include/asm
120 arch/$(ARCH)/include/asm:
121 $(Q)if [ ! -d arch/$(ARCH)/include ]; then mkdir -p arch/$(ARCH)/include; fi
122 $(Q)ln -fsn $(srctree)/include/asm-powerpc arch/$(ARCH)/include/asm
124 # Use the file '.tmp_gas_check' for binutils tests, as gas won't output
125 # to stdout and these checks are run even on install targets.
126 TOUT := .tmp_gas_check
127 # Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec
129 # gcc-3.4 and binutils-2.14 are a fatal combination.
130 GCC_VERSION := $(call cc-version)
133 @if test "$(GCC_VERSION)" = "0304" ; then \
134 if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \
135 echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \
136 echo 'correctly with gcc-3.4 and your version of binutils.'; \
137 echo '*** Please upgrade your binutils or downgrade your gcc'; \
141 @if ! /bin/echo dssall | $(AS) -many -o $(TOUT) >/dev/null 2>&1 ; then \
142 echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \
143 echo 'correctly with old versions of binutils.' ; \
144 echo '*** Please upgrade your binutils to 2.12.1 or newer' ; \
148 CLEAN_FILES += $(TOUT)