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 $(KERNELLOAD) -Bstatic
24 CPPFLAGS += -Iarch/$(ARCH)
25 AFLAGS += -Iarch/$(ARCH)
26 CFLAGS += -Iarch/$(ARCH) -msoft-float -pipe \
28 CPP = $(CC) -E $(CFLAGS)
30 CHECKFLAGS += -D__powerpc__
32 ifndef CONFIG_FSL_BOOKE
36 cpu-as-$(CONFIG_PPC64BRIDGE) += -Wa,-mppc64bridge
37 cpu-as-$(CONFIG_4xx) += -Wa,-m405
38 cpu-as-$(CONFIG_6xx) += -Wa,-maltivec
39 cpu-as-$(CONFIG_POWER4) += -Wa,-maltivec
40 cpu-as-$(CONFIG_E500) += -Wa,-me500
41 cpu-as-$(CONFIG_E200) += -Wa,-me200
46 # Default to the common case.
47 KBUILD_DEFCONFIG := common_defconfig
49 head-y := arch/ppc/kernel/head.o
50 head-$(CONFIG_8xx) := arch/ppc/kernel/head_8xx.o
51 head-$(CONFIG_4xx) := arch/ppc/kernel/head_4xx.o
52 head-$(CONFIG_44x) := arch/ppc/kernel/head_44x.o
53 head-$(CONFIG_FSL_BOOKE) := arch/ppc/kernel/head_fsl_booke.o
55 head-$(CONFIG_6xx) += arch/ppc/kernel/idle_6xx.o
56 head-$(CONFIG_POWER4) += arch/ppc/kernel/idle_power4.o
57 head-$(CONFIG_PPC_FPU) += arch/ppc/kernel/fpu.o
59 core-y += arch/ppc/kernel/ arch/ppc/platforms/ \
60 arch/ppc/mm/ arch/ppc/lib/ arch/ppc/syslib/
61 core-$(CONFIG_4xx) += arch/ppc/platforms/4xx/
62 core-$(CONFIG_83xx) += arch/ppc/platforms/83xx/
63 core-$(CONFIG_85xx) += arch/ppc/platforms/85xx/
64 core-$(CONFIG_MATH_EMULATION) += arch/ppc/math-emu/
65 core-$(CONFIG_XMON) += arch/ppc/xmon/
66 core-$(CONFIG_APUS) += arch/ppc/amiga/
67 drivers-$(CONFIG_8xx) += arch/ppc/8xx_io/
68 drivers-$(CONFIG_4xx) += arch/ppc/4xx_io/
69 drivers-$(CONFIG_CPM2) += arch/ppc/8260_io/
71 drivers-$(CONFIG_OPROFILE) += arch/ppc/oprofile/
73 BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
75 .PHONY: $(BOOT_TARGETS)
79 CPPFLAGS_vmlinux.lds := -Upowerpc
81 # All the instructions talk about "make bzImage".
84 boot := arch/$(ARCH)/boot
86 $(BOOT_TARGETS): vmlinux
87 $(Q)$(MAKE) $(build)=$(boot) $@
90 $(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@
93 @echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)'
94 @echo ' uImage - Create a bootable image for U-Boot / PPCBoot'
95 @echo ' install - Install kernel using'
96 @echo ' (your) ~/bin/installkernel or'
97 @echo ' (distribution) /sbin/installkernel or'
98 @echo ' install to $$(INSTALL_PATH) and run lilo'
99 @echo ' *_defconfig - Select default config from arch/$(ARCH)/ppc/configs'
103 $(Q)$(MAKE) $(clean)=arch/ppc/boot
105 prepare: include/asm-$(ARCH)/offsets.h checkbin
107 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
108 include/config/MARKER
110 include/asm-$(ARCH)/offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
111 $(call filechk,gen-asm-offsets)
113 # Use the file '.tmp_gas_check' for binutils tests, as gas won't output
114 # to stdout and these checks are run even on install targets.
115 TOUT := .tmp_gas_check
116 # Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec
118 # gcc-3.4 and binutils-2.14 are a fatal combination.
119 GCC_VERSION := $(call cc-version)
122 @if test "$(GCC_VERSION)" = "0304" ; then \
123 if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \
124 echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \
125 echo 'correctly with gcc-3.4 and your version of binutils.'; \
126 echo '*** Please upgrade your binutils or downgrade your gcc'; \
130 @if ! /bin/echo dssall | $(AS) -many -o $(TOUT) >/dev/null 2>&1 ; then \
131 echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \
132 echo 'correctly with old versions of binutils.' ; \
133 echo '*** Please upgrade your binutils to 2.12.1 or newer' ; \
137 CLEAN_FILES += include/asm-$(ARCH)/offsets.h \
138 arch/$(ARCH)/kernel/asm-offsets.s \