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1da177e4 LT |
1 | # This file is included by the global makefile so that you can add your own |
2 | # architecture-specific flags and dependencies. | |
3 | # | |
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 | |
6 | # for more details. | |
7 | # | |
8 | # Copyright (C) 1994 by Linus Torvalds | |
9 | # Changes for PPC by Gary Thomas | |
10 | # Rewritten by Cort Dougan and Paul Mackerras | |
11 | # | |
12 | ||
13 | # This must match PAGE_OFFSET in include/asm-ppc/page.h. | |
14 | KERNELLOAD := $(CONFIG_KERNEL_START) | |
15 | ||
16 | HAS_BIARCH := $(call cc-option-yn, -m32) | |
17 | ifeq ($(HAS_BIARCH),y) | |
18 | AS := $(AS) -a32 | |
19 | LD := $(LD) -m elf32ppc | |
20 | CC := $(CC) -m32 | |
21 | endif | |
22 | ||
23 | LDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic | |
24 | CPPFLAGS += -Iarch/$(ARCH) | |
25 | AFLAGS += -Iarch/$(ARCH) | |
26 | CFLAGS += -Iarch/$(ARCH) -msoft-float -pipe \ | |
27 | -ffixed-r2 -mmultiple | |
28 | CPP = $(CC) -E $(CFLAGS) | |
29 | ||
30 | CHECKFLAGS += -D__powerpc__ | |
31 | ||
32 | ifndef CONFIG_E500 | |
33 | CFLAGS += -mstring | |
34 | endif | |
35 | ||
36 | cpu-as-$(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 | ||
42 | AFLAGS += $(cpu-as-y) | |
43 | CFLAGS += $(cpu-as-y) | |
44 | ||
45 | # Default to the common case. | |
46 | KBUILD_DEFCONFIG := common_defconfig | |
47 | ||
48 | head-y := arch/ppc/kernel/head.o | |
49 | head-$(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-$(CONFIG_FSL_BOOKE) := arch/ppc/kernel/head_fsl_booke.o | |
53 | ||
54 | head-$(CONFIG_6xx) += arch/ppc/kernel/idle_6xx.o | |
55 | head-$(CONFIG_POWER4) += arch/ppc/kernel/idle_power4.o | |
443a848c | 56 | head-$(CONFIG_PPC_FPU) += arch/ppc/kernel/fpu.o |
1da177e4 LT |
57 | |
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-$(CONFIG_CPM2) += arch/ppc/8260_io/ | |
69 | ||
70 | drivers-$(CONFIG_OPROFILE) += arch/ppc/oprofile/ | |
71 | ||
72 | BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm | |
73 | ||
74 | .PHONY: $(BOOT_TARGETS) | |
75 | ||
76 | all: uImage zImage | |
77 | ||
78 | CPPFLAGS_vmlinux.lds := -Upowerpc | |
79 | ||
80 | # All the instructions talk about "make bzImage". | |
81 | bzImage: zImage | |
82 | ||
83 | boot := arch/$(ARCH)/boot | |
84 | ||
85 | $(BOOT_TARGETS): vmlinux | |
86 | $(Q)$(MAKE) $(build)=$(boot) $@ | |
87 | ||
88 | uImage: vmlinux | |
89 | $(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@ | |
90 | ||
91 | define archhelp | |
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' | |
99 | endef | |
100 | ||
101 | archclean: | |
102 | $(Q)$(MAKE) $(clean)=arch/ppc/boot | |
103 | ||
104 | prepare: include/asm-$(ARCH)/offsets.h checkbin | |
105 | ||
106 | arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \ | |
107 | include/config/MARKER | |
108 | ||
109 | include/asm-$(ARCH)/offsets.h: arch/$(ARCH)/kernel/asm-offsets.s | |
110 | $(call filechk,gen-asm-offsets) | |
111 | ||
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 | |
116 | # instructions. | |
117 | # gcc-3.4 and binutils-2.14 are a fatal combination. | |
118 | GCC_VERSION := $(call cc-version) | |
119 | ||
120 | checkbin: | |
121 | @if test "$(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'; \ | |
126 | false; \ | |
127 | fi ; \ | |
128 | fi | |
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' ; \ | |
133 | false ; \ | |
134 | fi | |
135 | ||
136 | CLEAN_FILES += include/asm-$(ARCH)/offsets.h \ | |
137 | arch/$(ARCH)/kernel/asm-offsets.s \ | |
138 | $(TOUT) | |
139 |