tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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
20HAS_BIARCH := $(call cc-option-yn, -m32)
21ifeq ($(HAS_BIARCH),y)
22AS := $(AS) --32
23LD := $(LD) -m elf_i386
24CC := $(CC) -m32
25endif
26
27LDFLAGS := -m elf_i386
28OBJCOPYFLAGS := -O binary -R .note -R .comment -S
29LDFLAGS_vmlinux :=
30CHECKFLAGS += -D__i386__
31
32CFLAGS += -pipe -msoft-float
33
34# prevent gcc from keeping the stack 16 byte aligned
35CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
36
37# CPU-specific tuning. Anything which can be shared with UML should go here.
38include $(srctree)/arch/i386/Makefile.cpu
39
40cflags-$(CONFIG_REGPARM) += -mregparm=3
41
42# temporary until string.h is fixed
43cflags-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:
47CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;)
48
49CFLAGS += $(cflags-y)
50
51# Default subarch .c files
52mcore-y := mach-default
53
54# Voyager subarch support
55mflags-$(CONFIG_X86_VOYAGER) := -Iinclude/asm-i386/mach-voyager
56mcore-$(CONFIG_X86_VOYAGER) := mach-voyager
57
58# VISWS subarch support
59mflags-$(CONFIG_X86_VISWS) := -Iinclude/asm-i386/mach-visws
60mcore-$(CONFIG_X86_VISWS) := mach-visws
61
62# NUMAQ subarch support
63mflags-$(CONFIG_X86_NUMAQ) := -Iinclude/asm-i386/mach-numaq
64mcore-$(CONFIG_X86_NUMAQ) := mach-default
65
66# BIGSMP subarch support
67mflags-$(CONFIG_X86_BIGSMP) := -Iinclude/asm-i386/mach-bigsmp
68mcore-$(CONFIG_X86_BIGSMP) := mach-default
69
70#Summit subarch support
71mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-i386/mach-summit
72mcore-$(CONFIG_X86_SUMMIT) := mach-default
73
74# generic subarchitecture
75mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-i386/mach-generic
76mcore-$(CONFIG_X86_GENERICARCH) := mach-default
77core-$(CONFIG_X86_GENERICARCH) += arch/i386/mach-generic/
78
79# ES7000 subarch support
80mflags-$(CONFIG_X86_ES7000) := -Iinclude/asm-i386/mach-es7000
81mcore-$(CONFIG_X86_ES7000) := mach-default
82core-$(CONFIG_X86_ES7000) := arch/i386/mach-es7000/
83
84# default subarch .h files
85mflags-y += -Iinclude/asm-i386/mach-default
86
87head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
88
89libs-y += arch/i386/lib/
90core-y += arch/i386/kernel/ \
91 arch/i386/mm/ \
92 arch/i386/$(mcore-y)/ \
93 arch/i386/crypto/
94drivers-$(CONFIG_MATH_EMULATION) += arch/i386/math-emu/
95drivers-$(CONFIG_PCI) += arch/i386/pci/
96# must be linked after kernel/
97drivers-$(CONFIG_OPROFILE) += arch/i386/oprofile/
98drivers-$(CONFIG_PM) += arch/i386/power/
99
100CFLAGS += $(mflags-y)
101AFLAGS += $(mflags-y)
102
103boot := arch/i386/boot
104
105PHONY += zImage bzImage compressed zlilo bzlilo \
106 zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install
107
108all: bzImage
109
110# KBUILD_IMAGE specify target image being built
111 KBUILD_IMAGE := $(boot)/bzImage
112zImage zlilo zdisk: KBUILD_IMAGE := arch/i386/boot/zImage
113
114zImage bzImage: vmlinux
115 $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
116
117compressed: zImage
118
119zlilo bzlilo: vmlinux
120 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo
121
122zdisk bzdisk: vmlinux
123 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
124
125fdimage fdimage144 fdimage288 isoimage: vmlinux
126 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
127
128install:
129 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
130
131archclean:
132 $(Q)$(MAKE) $(clean)=arch/i386/boot
133
134define archhelp
135 echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
136 echo ' install - Install kernel using'
137 echo ' (your) ~/bin/installkernel or'
138 echo ' (distribution) /sbin/installkernel or'
139 echo ' install to $$(INSTALL_PATH) and run lilo'
140 echo ' bzdisk - Create a boot floppy in /dev/fd0'
141 echo ' fdimage - Create a boot floppy image'
142 echo ' isoimage - Create a boot CD-ROM image'
143endef
144
145CLEAN_FILES += arch/$(ARCH)/boot/fdimage \
146 arch/$(ARCH)/boot/image.iso \
147 arch/$(ARCH)/boot/mtools.conf