[PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder
[linux-2.6.git] / arch / i386 / Makefile
1 #
2 # i386/Makefile
3 #
4 # This file is included by the global makefile so that you can add your own
5 # architecture-specific flags and dependencies. Remember to do have actions
6 # for "archclean" cleaning up for this architecture.
7 #
8 # This file is subject to the terms and conditions of the GNU General Public
9 # License.  See the file "COPYING" in the main directory of this archive
10 # for more details.
11 #
12 # Copyright (C) 1994 by Linus Torvalds
13 #
14 # 19990713  Artur Skawina <skawina@geocities.com>
15 #           Added '-march' and '-mpreferred-stack-boundary' support
16 #
17 # 20050320  Kianusch Sayah Karadji <kianusch@sk-tech.net>
18 #           Added support for GEODE CPU
19
20 HAS_BIARCH      := $(call cc-option-yn, -m32)
21 ifeq ($(HAS_BIARCH),y)
22 AS              := $(AS) --32
23 LD              := $(LD) -m elf_i386
24 CC              := $(CC) -m32
25 endif
26
27 LDFLAGS         := -m elf_i386
28 OBJCOPYFLAGS    := -O binary -R .note -R .comment -S
29 LDFLAGS_vmlinux :=
30 CHECKFLAGS      += -D__i386__
31
32 CFLAGS += -pipe -msoft-float
33
34 # prevent gcc from keeping the stack 16 byte aligned
35 CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
36
37 # CPU-specific tuning. Anything which can be shared with UML should go here.
38 include $(srctree)/arch/i386/Makefile.cpu
39
40 cflags-$(CONFIG_REGPARM) += -mregparm=3
41
42 # temporary until string.h is fixed
43 cflags-y += -ffreestanding
44
45 # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
46 # a lot more stack due to the lack of sharing of stacklots:
47 CFLAGS                          += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;)
48
49 # do binutils support CFI?
50 cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
51 AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
52
53 # is .cfi_signal_frame supported too?
54 cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
55 AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
56
57 CFLAGS += $(cflags-y)
58
59 # Default subarch .c files
60 mcore-y  := mach-default
61
62 # Voyager subarch support
63 mflags-$(CONFIG_X86_VOYAGER)    := -Iinclude/asm-i386/mach-voyager
64 mcore-$(CONFIG_X86_VOYAGER)     := mach-voyager
65
66 # VISWS subarch support
67 mflags-$(CONFIG_X86_VISWS)      := -Iinclude/asm-i386/mach-visws
68 mcore-$(CONFIG_X86_VISWS)       := mach-visws
69
70 # NUMAQ subarch support
71 mflags-$(CONFIG_X86_NUMAQ)      := -Iinclude/asm-i386/mach-numaq
72 mcore-$(CONFIG_X86_NUMAQ)       := mach-default
73
74 # BIGSMP subarch support
75 mflags-$(CONFIG_X86_BIGSMP)     := -Iinclude/asm-i386/mach-bigsmp
76 mcore-$(CONFIG_X86_BIGSMP)      := mach-default
77
78 #Summit subarch support
79 mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-i386/mach-summit
80 mcore-$(CONFIG_X86_SUMMIT)  := mach-default
81
82 # generic subarchitecture
83 mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-i386/mach-generic
84 mcore-$(CONFIG_X86_GENERICARCH) := mach-default
85 core-$(CONFIG_X86_GENERICARCH) += arch/i386/mach-generic/
86
87 # ES7000 subarch support
88 mflags-$(CONFIG_X86_ES7000)     := -Iinclude/asm-i386/mach-es7000
89 mcore-$(CONFIG_X86_ES7000)      := mach-default
90 core-$(CONFIG_X86_ES7000)       := arch/i386/mach-es7000/
91
92 # default subarch .h files
93 mflags-y += -Iinclude/asm-i386/mach-default
94
95 head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
96
97 libs-y                                  += arch/i386/lib/
98 core-y                                  += arch/i386/kernel/ \
99                                            arch/i386/mm/ \
100                                            arch/i386/$(mcore-y)/ \
101                                            arch/i386/crypto/
102 drivers-$(CONFIG_MATH_EMULATION)        += arch/i386/math-emu/
103 drivers-$(CONFIG_PCI)                   += arch/i386/pci/
104 # must be linked after kernel/
105 drivers-$(CONFIG_OPROFILE)              += arch/i386/oprofile/
106 drivers-$(CONFIG_PM)                    += arch/i386/power/
107
108 CFLAGS += $(mflags-y)
109 AFLAGS += $(mflags-y)
110
111 boot := arch/i386/boot
112
113 PHONY += zImage bzImage compressed zlilo bzlilo \
114          zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install
115
116 all: bzImage
117
118 # KBUILD_IMAGE specify target image being built
119                     KBUILD_IMAGE := $(boot)/bzImage
120 zImage zlilo zdisk: KBUILD_IMAGE := arch/i386/boot/zImage
121
122 zImage bzImage: vmlinux
123         $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
124
125 compressed: zImage
126
127 zlilo bzlilo: vmlinux
128         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo
129
130 zdisk bzdisk: vmlinux
131         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
132
133 fdimage fdimage144 fdimage288 isoimage: vmlinux
134         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
135
136 install:
137         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
138
139 archclean:
140         $(Q)$(MAKE) $(clean)=arch/i386/boot
141
142 define archhelp
143   echo  '* bzImage      - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
144   echo  '  install      - Install kernel using'
145   echo  '                  (your) ~/bin/installkernel or'
146   echo  '                  (distribution) /sbin/installkernel or'
147   echo  '                  install to $$(INSTALL_PATH) and run lilo'
148   echo  '  bzdisk       - Create a boot floppy in /dev/fd0'
149   echo  '  fdimage      - Create a boot floppy image'
150   echo  '  isoimage     - Create a boot CD-ROM image'
151 endef
152
153 CLEAN_FILES += arch/$(ARCH)/boot/fdimage \
154                arch/$(ARCH)/boot/image.iso \
155                arch/$(ARCH)/boot/mtools.conf