75607e943b9bcc7e395cfda6fcb27a0b99948b73
[linux-2.6.git] / arch / ppc / Makefile
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      := $(shell if $(CC) -m32 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi;)
17 ifeq ($(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/$(ARCH)
26 cflags-y        += -Iarch/$(ARCH) -msoft-float -pipe \
27                 -ffixed-r2 -Wno-uninitialized -mmultiple
28 CPP             = $(CC) -E $(CFLAGS)
29
30 ifndef CONFIG_E500
31 cflags-y        += -mstring
32 endif
33
34 cflags-$(CONFIG_4xx)            += -Wa,-m405
35 cflags-$(CONFIG_E500)           += -Wa,-me500
36 cflags-$(CONFIG_PPC64BRIDGE)    += -Wa,-mppc64bridge
37
38 CFLAGS += $(cflags-y)
39
40 head-y                          := arch/ppc/kernel/head.o
41 head-$(CONFIG_8xx)              := arch/ppc/kernel/head_8xx.o
42 head-$(CONFIG_4xx)              := arch/ppc/kernel/head_4xx.o
43 head-$(CONFIG_44x)              := arch/ppc/kernel/head_44x.o
44 head-$(CONFIG_E500)             := arch/ppc/kernel/head_e500.o
45
46 head-$(CONFIG_6xx)              += arch/ppc/kernel/idle_6xx.o
47 head-$(CONFIG_POWER4)           += arch/ppc/kernel/idle_power4.o
48
49 core-y                          += arch/ppc/kernel/ arch/ppc/platforms/ \
50                                    arch/ppc/mm/ arch/ppc/lib/ arch/ppc/syslib/
51 core-$(CONFIG_4xx)              += arch/ppc/platforms/4xx/
52 core-$(CONFIG_85xx)             += arch/ppc/platforms/85xx/
53 core-$(CONFIG_MATH_EMULATION)   += arch/ppc/math-emu/
54 core-$(CONFIG_XMON)             += arch/ppc/xmon/
55 core-$(CONFIG_APUS)             += arch/ppc/amiga/
56 drivers-$(CONFIG_8xx)           += arch/ppc/8xx_io/
57 drivers-$(CONFIG_4xx)           += arch/ppc/4xx_io/
58 drivers-$(CONFIG_CPM2)          += arch/ppc/8260_io/
59
60 drivers-$(CONFIG_OPROFILE)      += arch/ppc/oprofile/
61
62 BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
63
64 .PHONY: $(BOOT_TARGETS)
65
66 all: zImage
67
68 AFLAGS_vmlinux.lds.o    := -Upowerpc
69
70 # All the instructions talk about "make bzImage".
71 bzImage: zImage
72         cp vmlinux arch/ppc/boot/bzImage
73
74 boot := arch/$(ARCH)/boot
75
76 $(BOOT_TARGETS): vmlinux
77         $(Q)$(MAKE) $(build)=$(boot) $@
78
79 uImage: vmlinux
80         $(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@
81
82 define archhelp
83   @echo '* zImage          - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)'
84   @echo '  uImage          - Create a bootable image for U-Boot / PPCBoot'
85   @echo '  install         - Install kernel using'
86   @echo '                    (your) ~/bin/installkernel or'
87   @echo '                    (distribution) /sbin/installkernel or'
88   @echo '                    install to $$(INSTALL_PATH) and run lilo'
89   @echo '  *_defconfig     - Select default config from arch/$(ARCH)/ppc/configs'
90 endef
91
92 archclean:
93         $(Q)$(MAKE) $(clean)=arch/ppc/boot
94
95 prepare: include/asm-$(ARCH)/offsets.h checkbin
96
97 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
98                                    include/config/MARKER
99
100 include/asm-$(ARCH)/offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
101         $(call filechk,gen-asm-offsets)
102
103 ifdef CONFIG_6xx
104 # Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later
105 NEW_AS  := $(shell echo dssall | $(AS) -many -o /dev/null >/dev/null 2>&1 ; echo $$?)
106 GOODVER := 2.12.1
107 else
108 NEW_AS  := 0
109 endif
110
111 ifneq ($(NEW_AS),0)
112 checkbin:
113         @echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '
114         @echo 'correctly with old versions of binutils.'
115         @echo '*** Please upgrade your binutils to ${GOODVER} or newer'
116         @false
117 else
118 checkbin:
119         @true
120 endif
121
122 CLEAN_FILES +=  include/asm-$(ARCH)/offsets.h \
123                 arch/$(ARCH)/kernel/asm-offsets.s