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.
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
12 # Copyright (C) 1994 by Linus Torvalds
14 # 19990713 Artur Skawina <skawina@geocities.com>
15 # Added '-march' and '-mpreferred-stack-boundary' support
17 # 20050320 Kianusch Sayah Karadji <kianusch@sk-tech.net>
18 # Added support for GEODE CPU
24 @mkdir
-p
${objtree}/arch
/x86
/kernel
27 HAS_BIARCH
:= $(call cc-option-yn
, -m32
)
28 ifeq ($(HAS_BIARCH
),y
)
30 LD
:= $(LD
) -m elf_i386
34 LDFLAGS
:= -m elf_i386
35 OBJCOPYFLAGS
:= -O binary
-R .note
-R .comment
-S
36 ifdef CONFIG_RELOCATABLE
37 LDFLAGS_vmlinux
:= --emit-relocs
39 CHECKFLAGS
+= -D__i386__
41 CFLAGS
+= -pipe
-msoft-float
-mregparm
=3 -freg-struct-return
43 # prevent gcc from keeping the stack 16 byte aligned
44 CFLAGS
+= $(call cc-option
,-mpreferred-stack-boundary
=2)
46 # CPU-specific tuning. Anything which can be shared with UML should go here.
47 include $(srctree
)/arch
/i386
/Makefile.cpu
49 # temporary until string.h is fixed
50 cflags-y
+= -ffreestanding
52 # this works around some issues with generating unwind tables in older gccs
53 # newer gccs do it by default
54 cflags-y
+= -maccumulate-outgoing-args
56 # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
57 # a lot more stack due to the lack of sharing of stacklots:
58 CFLAGS
+= $(shell if
[ $(call cc-version
) -lt
0400 ] ; then echo
$(call cc-option
,-fno-unit-at-a-time
); fi
;)
60 # do binutils support CFI?
61 cflags-y
+= $(call as-instr
,.cfi_startproc
\n.cfi_rel_offset esp
${comma}0\n.cfi_endproc
,-DCONFIG_AS_CFI
=1,)
62 AFLAGS
+= $(call as-instr
,.cfi_startproc
\n.cfi_rel_offset esp
${comma}0\n.cfi_endproc
,-DCONFIG_AS_CFI
=1,)
64 # is .cfi_signal_frame supported too?
65 cflags-y
+= $(call as-instr
,.cfi_startproc
\n.cfi_signal_frame
\n.cfi_endproc
,-DCONFIG_AS_CFI_SIGNAL_FRAME
=1,)
66 AFLAGS
+= $(call as-instr
,.cfi_startproc
\n.cfi_signal_frame
\n.cfi_endproc
,-DCONFIG_AS_CFI_SIGNAL_FRAME
=1,)
70 # Default subarch .c files
71 mcore-y
:= arch
/x86
/mach-default
73 # Voyager subarch support
74 mflags-
$(CONFIG_X86_VOYAGER
) := -Iinclude
/asm-i386
/mach-voyager
75 mcore-
$(CONFIG_X86_VOYAGER
) := arch
/x86
/mach-voyager
77 # VISWS subarch support
78 mflags-
$(CONFIG_X86_VISWS
) := -Iinclude
/asm-i386
/mach-visws
79 mcore-
$(CONFIG_X86_VISWS
) := arch
/x86
/mach-visws
81 # NUMAQ subarch support
82 mflags-
$(CONFIG_X86_NUMAQ
) := -Iinclude
/asm-i386
/mach-numaq
83 mcore-
$(CONFIG_X86_NUMAQ
) := arch
/x86
/mach-default
85 # BIGSMP subarch support
86 mflags-
$(CONFIG_X86_BIGSMP
) := -Iinclude
/asm-i386
/mach-bigsmp
87 mcore-
$(CONFIG_X86_BIGSMP
) := arch
/x86
/mach-default
89 #Summit subarch support
90 mflags-
$(CONFIG_X86_SUMMIT
) := -Iinclude
/asm-i386
/mach-summit
91 mcore-
$(CONFIG_X86_SUMMIT
) := arch
/x86
/mach-default
93 # generic subarchitecture
94 mflags-
$(CONFIG_X86_GENERICARCH
) := -Iinclude
/asm-i386
/mach-generic
95 mcore-
$(CONFIG_X86_GENERICARCH
) := arch
/x86
/mach-default
96 core-
$(CONFIG_X86_GENERICARCH
) += arch
/x86
/mach-generic
/
98 # ES7000 subarch support
99 mflags-
$(CONFIG_X86_ES7000
) := -Iinclude
/asm-i386
/mach-es7000
100 mcore-
$(CONFIG_X86_ES7000
) := arch
/x86
/mach-default
101 core-
$(CONFIG_X86_ES7000
) := arch
/x86
/mach-es7000
/
103 # Xen paravirtualization support
104 core-
$(CONFIG_XEN
) += arch
/x86
/xen
/
106 # default subarch .h files
107 mflags-y
+= -Iinclude
/asm-i386
/mach-default
109 head-y
:= arch
/x86
/kernel
/head_32.o arch
/x86
/kernel
/init_task_32.o
111 libs-y
+= arch
/x86
/lib
/
112 core-y
+= arch
/x86
/kernel
/ \
116 drivers-
$(CONFIG_MATH_EMULATION
) += arch
/x86
/math-emu
/
117 drivers-
$(CONFIG_PCI
) += arch
/x86
/pci
/
118 # must be linked after kernel/
119 drivers-
$(CONFIG_OPROFILE
) += arch
/x86
/oprofile
/
120 drivers-
$(CONFIG_PM
) += arch
/x86
/power
/
121 drivers-
$(CONFIG_FB
) += arch
/x86
/video
/
123 CFLAGS
+= $(mflags-y
)
124 AFLAGS
+= $(mflags-y
)
126 boot
:= arch
/x86
/boot
128 PHONY
+= zImage bzImage compressed zlilo bzlilo \
129 zdisk bzdisk fdimage fdimage144 fdimage288 isoimage
install
133 # KBUILD_IMAGE specify target image being built
134 KBUILD_IMAGE
:= $(boot
)/bzImage
135 zImage zlilo zdisk
: KBUILD_IMAGE
:= arch
/x86
/boot
/zImage
137 zImage bzImage
: vmlinux
138 $(Q
)mkdir
-p
$(objtree
)/arch
/i386
/boot
139 $(Q
)ln
-fsn
$(objtree
)/arch
/x86
/boot
/bzImage
$(objtree
)/arch
/i386
/boot
/bzImage
140 $(Q
)$(MAKE
) $(build
)=$(boot
) $(KBUILD_IMAGE
)
144 zlilo bzlilo
: vmlinux
145 $(Q
)$(MAKE
) $(build
)=$(boot
) BOOTIMAGE
=$(KBUILD_IMAGE
) zlilo
147 zdisk bzdisk
: vmlinux
148 $(Q
)$(MAKE
) $(build
)=$(boot
) BOOTIMAGE
=$(KBUILD_IMAGE
) zdisk
150 fdimage fdimage144 fdimage288 isoimage
: vmlinux
151 $(Q
)$(MAKE
) $(build
)=$(boot
) BOOTIMAGE
=$(KBUILD_IMAGE
) $@
154 $(Q
)$(MAKE
) $(build
)=$(boot
) BOOTIMAGE
=$(KBUILD_IMAGE
) install
157 $(Q
)rm -rf
$(objtree
)/arch
/i386
/boot
158 $(Q
)$(MAKE
) $(clean)=arch
/x86
/boot
161 echo
'* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
162 echo
' install - Install kernel using'
163 echo
' (your) ~/bin/installkernel or'
164 echo
' (distribution) /sbin/installkernel or'
165 echo
' install to $$(INSTALL_PATH) and run lilo'
166 echo
' bzdisk - Create a boot floppy in /dev/fd0'
167 echo
' fdimage - Create a boot floppy image'
168 echo
' isoimage - Create a boot CD-ROM image'
171 CLEAN_FILES
+= arch
/$(ARCH
)/boot
/fdimage \
172 arch
/$(ARCH
)/boot
/image.iso \
173 arch
/$(ARCH
)/boot
/mtools.conf