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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
Thomas Gleixner96ae6ea2007-10-11 11:16:45 +02002# arch/x86/boot/Makefile
Linus Torvalds1da177e2005-04-16 15:20:36 -07003#
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
H. Peter Anvin5e47c472009-03-11 10:55:33 -07009# Changed by many, many contributors over the years.
Linus Torvalds1da177e2005-04-16 15:20:36 -070010#
11
Josh Poimboeufc0dd6716862016-02-28 22:22:34 -060012KASAN_SANITIZE := n
13OBJECT_FILES_NON_STANDARD := y
Andrey Konovalovc63f06d2015-11-05 18:51:09 -080014
Dmitry Vyukov5c9a8752016-03-22 14:27:30 -070015# Kernel does not boot with kcov instrumentation here.
16# One of the problems observed was insertion of __sanitizer_cov_trace_pc()
17# callback into middle of per-cpu data enabling code. Thus the callback observed
18# inconsistent state and crashed. We are interested mostly in syscall coverage,
19# so boot code is not interesting anyway.
20KCOV_INSTRUMENT := n
21
Linus Torvalds1da177e2005-04-16 15:20:36 -070022# If you want to preset the SVGA mode, uncomment the next line and
23# set SVGA_MODE to whatever number you want.
24# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
25# The number is the same as you would ordinarily press at bootup.
26
H. Peter Anvin5e47c472009-03-11 10:55:33 -070027SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
Linus Torvalds1da177e2005-04-16 15:20:36 -070028
H. Peter Anvin5e47c472009-03-11 10:55:33 -070029targets := vmlinux.bin setup.bin setup.elf bzImage
H. Peter Anvin16a67912009-03-12 13:43:14 -070030targets += fdimage fdimage144 fdimage288 image.iso mtools.conf
H. Peter Anvinf0be6c62008-02-04 16:48:00 +010031subdir- := compressed
Linus Torvalds1da177e2005-04-16 15:20:36 -070032
Kees Cookdd78b972013-10-10 17:18:13 -070033setup-y += a20.o bioscall.o cmdline.o copy.o cpu.o cpuflags.o cpucheck.o
Paolo Pisati94916302015-07-20 18:23:50 +020034setup-y += early_serial_console.o edd.o header.o main.o memory.o
Yinghai Luf4ed2872010-08-02 02:17:31 -070035setup-y += pm.o pmjump.o printf.o regs.o string.o tty.o video.o
36setup-y += video-mode.o version.o
Andi Kleena6b68072008-01-30 13:32:49 +010037setup-$(CONFIG_X86_APM_BOOT) += apm.o
H. Peter Anvin4fd06962007-07-11 12:18:56 -070038
39# The link order of the video-*.o modules can matter. In particular,
40# video-vga.o *must* be listed first, followed by video-vesa.o.
41# Hardware-specific drivers should follow in the order they should be
42# probed, and video-bios.o should typically be last.
43setup-y += video-vga.o
44setup-y += video-vesa.o
45setup-y += video-bios.o
H. Peter Anvin30c82642007-10-15 17:13:22 -070046
Sam Ravnborg3fbc5412007-07-17 22:27:22 +020047targets += $(setup-y)
Josh Triplett9def39be2013-10-30 08:09:45 -070048hostprogs-y := tools/build
49hostprogs-$(CONFIG_X86_FEATURE_NAMES) += mkcpustr
Linus Torvalds1da177e2005-04-16 15:20:36 -070050
Matt Flemingb6eea872012-10-12 11:19:59 +010051HOST_EXTRACFLAGS += -I$(srctree)/tools/include \
52 -include include/generated/autoconf.h \
H. Peter Anvin446e1c82012-03-22 11:08:18 -070053 -D__EXPORTED_HEADERS__
54
Josh Triplett9def39be2013-10-30 08:09:45 -070055ifdef CONFIG_X86_FEATURE_NAMES
H. Peter Anvinf0be6c62008-02-04 16:48:00 +010056$(obj)/cpu.o: $(obj)/cpustr.h
57
58quiet_cmd_cpustr = CPUSTR $@
59 cmd_cpustr = $(obj)/mkcpustr > $@
Josh Triplett9def39be2013-10-30 08:09:45 -070060targets += cpustr.h
H. Peter Anvinf0be6c62008-02-04 16:48:00 +010061$(obj)/cpustr.h: $(obj)/mkcpustr FORCE
62 $(call if_changed,cpustr)
Josh Triplett9def39be2013-10-30 08:09:45 -070063endif
Bjørn Mork280dbc52014-12-23 12:57:43 +010064clean-files += cpustr.h
Linus Torvalds1da177e2005-04-16 15:20:36 -070065
66# ---------------------------------------------------------------------------
67
Paul Bolle0acba3f2016-11-03 10:47:48 +010068KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP
Sam Ravnborg222d3942007-10-15 21:59:31 +020069KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
Peter Oberparleiter7bf99fb2009-06-17 16:28:09 -070070GCOV_PROFILE := n
Andrey Ryabininc6d30852016-01-20 15:00:55 -080071UBSAN_SANITIZE := n
H. Peter Anvin4fd06962007-07-11 12:18:56 -070072
H. Peter Anvin5e47c472009-03-11 10:55:33 -070073$(obj)/bzImage: asflags-y := $(SVGA_MODE)
Linus Torvalds1da177e2005-04-16 15:20:36 -070074
75quiet_cmd_image = BUILD $@
Arnd Bergmannd4601312017-07-19 14:53:03 +020076silent_redirect_image = >/dev/null
Kees Cook809373e2013-09-06 11:15:32 -070077cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
Arnd Bergmannd4601312017-07-19 14:53:03 +020078 $(obj)/zoffset.h $@ $($(quiet)redirect_image)
Linus Torvalds1da177e2005-04-16 15:20:36 -070079
H. Peter Anvin5e47c472009-03-11 10:55:33 -070080$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
Linus Torvalds1da177e2005-04-16 15:20:36 -070081 $(call if_changed,image)
Arnd Bergmannd4601312017-07-19 14:53:03 +020082 @$(kecho) 'Kernel: $@ is ready' ' (#'`cat .version`')'
Linus Torvalds1da177e2005-04-16 15:20:36 -070083
Ian Campbell1622ac22008-02-04 16:47:56 +010084OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
Linus Torvalds1da177e2005-04-16 15:20:36 -070085$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
86 $(call if_changed,objcopy)
87
H. Peter Anvin4fd06962007-07-11 12:18:56 -070088SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
Linus Torvalds1da177e2005-04-16 15:20:36 -070089
Ard Biesheuvelacc943f2020-06-22 19:56:39 +000090sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [a-zA-Z] \(startup_32\|startup_64\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|input_data\|_end\|_ehead\|_text\|z_.*\)$$/\#define ZO_\2 0x\1/p'
H. Peter Anvin77d1a492009-05-11 14:21:12 -070091
92quiet_cmd_zoffset = ZOFFSET $@
93 cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
94
95targets += zoffset.h
96$(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE
97 $(call if_changed,zoffset)
98
Ian Campbell099e1372008-02-13 20:54:58 +000099
Arnd Bergmann58ab5e02016-06-15 17:45:46 +0200100AFLAGS_header.o += -I$(objtree)/$(obj)
Yinghai Lu67b66622016-04-28 17:09:06 -0700101$(obj)/header.o: $(obj)/zoffset.h
Ian Campbell099e1372008-02-13 20:54:58 +0000102
Nick Desaulniers9d9fc742022-08-10 15:24:41 -0700103LDFLAGS_setup.elf := -m elf_i386 -z noexecstack -T
H. Peter Anvin4fd06962007-07-11 12:18:56 -0700104$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105 $(call if_changed,ld)
106
H. Peter Anvin4fd06962007-07-11 12:18:56 -0700107OBJCOPYFLAGS_setup.bin := -O binary
H. Peter Anvin4fd06962007-07-11 12:18:56 -0700108$(obj)/setup.bin: $(obj)/setup.elf FORCE
109 $(call if_changed,objcopy)
110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111$(obj)/compressed/vmlinux: FORCE
Paul Bolled960c9c2008-10-04 21:18:51 +0200112 $(Q)$(MAKE) $(build)=$(obj)/compressed $@
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700114# Set this if you want to pass append arguments to the
115# bzdisk/fdimage/isoimage kernel
H. Peter Anvinf0be6c62008-02-04 16:48:00 +0100116FDARGS =
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700117# Set this if you want an initrd included with the
118# bzdisk/fdimage/isoimage kernel
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800119FDINITRD =
120
121image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122
123$(obj)/mtools.conf: $(src)/mtools.conf.in
124 sed -e 's|@OBJ@|$(obj)|g' < $< > $@
125
126# This requires write access to /dev/fd0
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700127bzdisk: $(obj)/bzImage $(obj)/mtools.conf
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128 MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync
129 syslinux /dev/fd0 ; sync
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800130 echo '$(image_cmdline)' | \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800132 if [ -f '$(FDINITRD)' ] ; then \
133 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
134 fi
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700135 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux ; sync
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136
137# These require being root or having syslinux 2.02 or higher installed
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700138fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
140 MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync
141 syslinux $(obj)/fdimage ; sync
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800142 echo '$(image_cmdline)' | \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800144 if [ -f '$(FDINITRD)' ] ; then \
145 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
146 fi
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700147 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux ; sync
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700149fdimage288: $(obj)/bzImage $(obj)/mtools.conf
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
151 MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync
152 syslinux $(obj)/fdimage ; sync
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800153 echo '$(image_cmdline)' | \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800155 if [ -f '$(FDINITRD)' ] ; then \
156 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
157 fi
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700158 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux ; sync
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700160isoimage: $(obj)/bzImage
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800161 -rm -rf $(obj)/isoimage
162 mkdir $(obj)/isoimage
Andi Kleenbf660252006-06-26 13:58:41 +0200163 for i in lib lib64 share end ; do \
164 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
165 cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
H. Peter Anvin9c776792016-04-05 17:01:33 -0700166 if [ -f /usr/$$i/syslinux/ldlinux.c32 ]; then \
167 cp /usr/$$i/syslinux/ldlinux.c32 $(obj)/isoimage ; \
168 fi ; \
Andi Kleenbf660252006-06-26 13:58:41 +0200169 break ; \
170 fi ; \
171 if [ $$i = end ] ; then exit 1 ; fi ; \
172 done
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700173 cp $(obj)/bzImage $(obj)/isoimage/linux
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800174 echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
175 if [ -f '$(FDINITRD)' ] ; then \
176 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
177 fi
178 mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
179 -no-emul-boot -boot-load-size 4 -boot-info-table \
180 $(obj)/isoimage
H. Peter Anvind2f37382008-09-05 21:28:27 -0700181 isohybrid $(obj)/image.iso 2>/dev/null || true
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800182 rm -rf $(obj)/isoimage
183
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700184bzlilo: $(obj)/bzImage
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
186 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700187 cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188 cp System.map $(INSTALL_PATH)/
189 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
190
H. Peter Anvin0d20bab2006-01-07 17:38:39 -0800191install:
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700192 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
193 System.map "$(INSTALL_PATH)"