1# 2# arch/x86/boot/Makefile 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# Changed by many, many contributors over the years. 10# 11 12KASAN_SANITIZE := n 13 14# Kernel does not boot with kcov instrumentation here. 15# One of the problems observed was insertion of __sanitizer_cov_trace_pc() 16# callback into middle of per-cpu data enabling code. Thus the callback observed 17# inconsistent state and crashed. We are interested mostly in syscall coverage, 18# so boot code is not interesting anyway. 19KCOV_INSTRUMENT := n 20 21# If you want to preset the SVGA mode, uncomment the next line and 22# set SVGA_MODE to whatever number you want. 23# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode. 24# The number is the same as you would ordinarily press at bootup. 25 26SVGA_MODE := -DSVGA_MODE=NORMAL_VGA 27 28targets := vmlinux.bin setup.bin setup.elf bzImage 29targets += fdimage fdimage144 fdimage288 image.iso mtools.conf 30subdir- := compressed 31 32setup-y += a20.o bioscall.o cmdline.o copy.o cpu.o cpuflags.o cpucheck.o 33setup-y += early_serial_console.o edd.o header.o main.o memory.o 34setup-y += pm.o pmjump.o printf.o regs.o string.o tty.o video.o 35setup-y += video-mode.o version.o 36setup-$(CONFIG_X86_APM_BOOT) += apm.o 37 38# The link order of the video-*.o modules can matter. In particular, 39# video-vga.o *must* be listed first, followed by video-vesa.o. 40# Hardware-specific drivers should follow in the order they should be 41# probed, and video-bios.o should typically be last. 42setup-y += video-vga.o 43setup-y += video-vesa.o 44setup-y += video-bios.o 45 46targets += $(setup-y) 47hostprogs-y := tools/build 48hostprogs-$(CONFIG_X86_FEATURE_NAMES) += mkcpustr 49 50HOST_EXTRACFLAGS += -I$(srctree)/tools/include \ 51 -include include/generated/autoconf.h \ 52 -D__EXPORTED_HEADERS__ 53 54ifdef CONFIG_X86_FEATURE_NAMES 55$(obj)/cpu.o: $(obj)/cpustr.h 56 57quiet_cmd_cpustr = CPUSTR $@ 58 cmd_cpustr = $(obj)/mkcpustr > $@ 59targets += cpustr.h 60$(obj)/cpustr.h: $(obj)/mkcpustr FORCE 61 $(call if_changed,cpustr) 62endif 63clean-files += cpustr.h 64 65# --------------------------------------------------------------------------- 66 67KBUILD_CFLAGS := $(USERINCLUDE) $(REALMODE_CFLAGS) -D_SETUP 68KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ 69GCOV_PROFILE := n 70 71$(obj)/bzImage: asflags-y := $(SVGA_MODE) 72 73quiet_cmd_image = BUILD $@ 74silent_redirect_image = >/dev/null 75cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \ 76 $(obj)/zoffset.h $@ $($(quiet)redirect_image) 77 78$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE 79 $(call if_changed,image) 80 @$(kecho) 'Kernel: $@ is ready' ' (#'`cat .version`')' 81 82OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S 83$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE 84 $(call if_changed,objcopy) 85 86SETUP_OBJS = $(addprefix $(obj)/,$(setup-y)) 87 88sed-voffset := -e 's/^\([0-9a-fA-F]*\) [ABCDGRSTVW] \(_text\|_end\)$$/\#define VO_\2 0x\1/p' 89 90quiet_cmd_voffset = VOFFSET $@ 91 cmd_voffset = $(NM) $< | sed -n $(sed-voffset) > $@ 92 93targets += voffset.h 94$(obj)/voffset.h: vmlinux FORCE 95 $(call if_changed,voffset) 96 97sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [ABCDGRSTVW] \(startup_32\|startup_64\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|input_data\|_end\|z_.*\)$$/\#define ZO_\2 0x\1/p' 98 99quiet_cmd_zoffset = ZOFFSET $@ 100 cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@ 101 102targets += zoffset.h 103$(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE 104 $(call if_changed,zoffset) 105 106 107AFLAGS_header.o += -I$(obj) 108$(obj)/header.o: $(obj)/voffset.h $(obj)/zoffset.h 109 110LDFLAGS_setup.elf := -m elf_i386 -T 111$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE 112 $(call if_changed,ld) 113 114OBJCOPYFLAGS_setup.bin := -O binary 115$(obj)/setup.bin: $(obj)/setup.elf FORCE 116 $(call if_changed,objcopy) 117 118$(obj)/compressed/vmlinux: FORCE 119 $(Q)$(MAKE) $(build)=$(obj)/compressed $@ 120 121# Set this if you want to pass append arguments to the 122# bzdisk/fdimage/isoimage kernel 123FDARGS = 124# Set this if you want an initrd included with the 125# bzdisk/fdimage/isoimage kernel 126FDINITRD = 127 128image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,) 129 130$(obj)/mtools.conf: $(src)/mtools.conf.in 131 sed -e 's|@OBJ@|$(obj)|g' < $< > $@ 132 133# This requires write access to /dev/fd0 134bzdisk: $(obj)/bzImage $(obj)/mtools.conf 135 MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync 136 syslinux /dev/fd0 ; sync 137 echo '$(image_cmdline)' | \ 138 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg 139 if [ -f '$(FDINITRD)' ] ; then \ 140 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \ 141 fi 142 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux ; sync 143 144# These require being root or having syslinux 2.02 or higher installed 145fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf 146 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440 147 MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync 148 syslinux $(obj)/fdimage ; sync 149 echo '$(image_cmdline)' | \ 150 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg 151 if [ -f '$(FDINITRD)' ] ; then \ 152 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \ 153 fi 154 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux ; sync 155 156fdimage288: $(obj)/bzImage $(obj)/mtools.conf 157 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880 158 MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync 159 syslinux $(obj)/fdimage ; sync 160 echo '$(image_cmdline)' | \ 161 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg 162 if [ -f '$(FDINITRD)' ] ; then \ 163 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \ 164 fi 165 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux ; sync 166 167isoimage: $(obj)/bzImage 168 -rm -rf $(obj)/isoimage 169 mkdir $(obj)/isoimage 170 for i in lib lib64 share end ; do \ 171 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \ 172 cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \ 173 if [ -f /usr/$$i/syslinux/ldlinux.c32 ]; then \ 174 cp /usr/$$i/syslinux/ldlinux.c32 $(obj)/isoimage ; \ 175 fi ; \ 176 break ; \ 177 fi ; \ 178 if [ $$i = end ] ; then exit 1 ; fi ; \ 179 done 180 cp $(obj)/bzImage $(obj)/isoimage/linux 181 echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg 182 if [ -f '$(FDINITRD)' ] ; then \ 183 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \ 184 fi 185 mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \ 186 -no-emul-boot -boot-load-size 4 -boot-info-table \ 187 $(obj)/isoimage 188 isohybrid $(obj)/image.iso 2>/dev/null || true 189 rm -rf $(obj)/isoimage 190 191bzlilo: $(obj)/bzImage 192 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi 193 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi 194 cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz 195 cp System.map $(INSTALL_PATH)/ 196 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi 197 198install: 199 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \ 200 System.map "$(INSTALL_PATH)" 201