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 $(CFLAGS)
30 CHECKFLAGS += -D__powerpc__
36 cpu-as-$(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
45 # Default to the common case.
46 KBUILD_DEFCONFIG := common_defconfig
48 head-y := arch/ppc/kernel/head.o
49 head-$(CONFIG_8xx) := arch/ppc/kernel/head_8xx.o
50 head-$(CONFIG_4xx) := arch/ppc/kernel/head_4xx.o
51 head-$(CONFIG_44x) := arch/ppc/kernel/head_44x.o
52 head-$(CONFIG_FSL_BOOKE) := arch/ppc/kernel/head_fsl_booke.o
54 head-$(CONFIG_6xx) += arch/ppc/kernel/idle_6xx.o
55 head-$(CONFIG_POWER4) += arch/ppc/kernel/idle_power4.o
56 head-$(CONFIG_PPC_FPU) += arch/ppc/kernel/fpu.o
58 core-y += arch/ppc/kernel/ arch/ppc/platforms/ \
59 arch/ppc/mm/ arch/ppc/lib/ arch/ppc/syslib/
60 core-$(CONFIG_4xx) += arch/ppc/platforms/4xx/
61 core-$(CONFIG_83xx) += arch/ppc/platforms/83xx/
62 core-$(CONFIG_85xx) += arch/ppc/platforms/85xx/
63 core-$(CONFIG_MATH_EMULATION) += arch/ppc/math-emu/
64 core-$(CONFIG_XMON) += arch/ppc/xmon/
65 core-$(CONFIG_APUS) += arch/ppc/amiga/
66 drivers-$(CONFIG_8xx) += arch/ppc/8xx_io/
67 drivers-$(CONFIG_4xx) += arch/ppc/4xx_io/
68 drivers-$(CONFIG_CPM2) += arch/ppc/8260_io/
70 drivers-$(CONFIG_OPROFILE) += arch/ppc/oprofile/
72 BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
74 .PHONY: $(BOOT_TARGETS)
78 CPPFLAGS_vmlinux.lds := -Upowerpc
80 # All the instructions talk about "make bzImage".
83 boot := arch/$(ARCH)/boot
85 $(BOOT_TARGETS): vmlinux
86 $(Q)$(MAKE) $(build)=$(boot) $@
89 $(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@
92 @echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)'
93 @echo ' uImage - Create a bootable image for U-Boot / PPCBoot'
94 @echo ' install - Install kernel using'
95 @echo ' (your) ~/bin/installkernel or'
96 @echo ' (distribution) /sbin/installkernel or'
97 @echo ' install to $$(INSTALL_PATH) and run lilo'
98 @echo ' *_defconfig - Select default config from arch/$(ARCH)/ppc/configs'
102 $(Q)$(MAKE) $(clean)=arch/ppc/boot
104 prepare: include/asm-$(ARCH)/offsets.h checkbin
106 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
107 include/config/MARKER
109 include/asm-$(ARCH)/offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
110 $(call filechk,gen-asm-offsets)
112 # Use the file '.tmp_gas_check' for binutils tests, as gas won't output
113 # to stdout and these checks are run even on install targets.
114 TOUT := .tmp_gas_check
115 # Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec
117 # gcc-3.4 and binutils-2.14 are a fatal combination.
118 GCC_VERSION := $(call cc-version)
121 @if test "$(GCC_VERSION)" = "0304" ; then \
122 if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \
123 echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \
124 echo 'correctly with gcc-3.4 and your version of binutils.'; \
125 echo '*** Please upgrade your binutils or downgrade your gcc'; \
129 @if ! /bin/echo dssall | $(AS) -many -o $(TOUT) >/dev/null 2>&1 ; then \
130 echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \
131 echo 'correctly with old versions of binutils.' ; \
132 echo '*** Please upgrade your binutils to 2.12.1 or newer' ; \
136 CLEAN_FILES += include/asm-$(ARCH)/offsets.h \
137 arch/$(ARCH)/kernel/asm-offsets.s \