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 13OBJECT_FILES_NON_STANDARD := y 14 15# 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 22# 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 27SVGA_MODE := -DSVGA_MODE=NORMAL_VGA 28 29targets := vmlinux.bin setup.bin setup.elf bzImage 30targets += fdimage fdimage144 fdimage288 image.iso mtools.conf 31subdir- := compressed 32 33setup-y += a20.o bioscall.o cmdline.o copy.o cpu.o cpuflags.o cpucheck.o 34setup-y += early_serial_console.o edd.o header.o main.o memory.o 35setup-y += pm.o pmjump.o printf.o regs.o string.o tty.o video.o 36setup-y += video-mode.o version.o 37setup-$(CONFIG_X86_APM_BOOT) += apm.o 38 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 46 47targets += $(setup-y) 48hostprogs-y := tools/build 49hostprogs-$(CONFIG_X86_FEATURE_NAMES) += mkcpustr 50 51HOST_EXTRACFLAGS += -I$(srctree)/tools/include \ 52 -include include/generated/autoconf.h \ 53 -D__EXPORTED_HEADERS__ 54 55ifdef CONFIG_X86_FEATURE_NAMES 56$(obj)/cpu.o: $(obj)/cpustr.h 57 58quiet_cmd_cpustr = CPUSTR $@ 59 cmd_cpustr = $(obj)/mkcpustr > $@ 60targets += cpustr.h 61$(obj)/cpustr.h: $(obj)/mkcpustr FORCE 62 $(call if_changed,cpustr) 63endif 64clean-files += cpustr.h 65 66# --------------------------------------------------------------------------- 67 68KBUILD_CFLAGS := $(USERINCLUDE) $(REALMODE_CFLAGS) -D_SETUP 69KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ 70GCOV_PROFILE := n 71UBSAN_SANITIZE := n 72 73$(obj)/bzImage: asflags-y := $(SVGA_MODE) 74 75quiet_cmd_image = BUILD $@ 76cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \ 77 $(obj)/zoffset.h $@ 78 79$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE 80 $(call if_changed,image) 81 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')' 82 83OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S 84$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE 85 $(call if_changed,objcopy) 86 87SETUP_OBJS = $(addprefix $(obj)/,$(setup-y)) 88 89sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [ABCDGRSTVW] \(startup_32\|startup_64\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|input_data\|_end\|_ehead\|_text\|z_.*\)$$/\#define ZO_\2 0x\1/p' 90 91quiet_cmd_zoffset = ZOFFSET $@ 92 cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@ 93 94targets += zoffset.h 95$(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE 96 $(call if_changed,zoffset) 97 98 99AFLAGS_header.o += -I$(objtree)/$(obj) 100$(obj)/header.o: $(obj)/zoffset.h 101 102LDFLAGS_setup.elf := -T 103$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE 104 $(call if_changed,ld) 105 106OBJCOPYFLAGS_setup.bin := -O binary 107$(obj)/setup.bin: $(obj)/setup.elf FORCE 108 $(call if_changed,objcopy) 109 110$(obj)/compressed/vmlinux: FORCE 111 $(Q)$(MAKE) $(build)=$(obj)/compressed $@ 112 113# Set this if you want to pass append arguments to the 114# bzdisk/fdimage/isoimage kernel 115FDARGS = 116# Set this if you want an initrd included with the 117# bzdisk/fdimage/isoimage kernel 118FDINITRD = 119 120image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,) 121 122$(obj)/mtools.conf: $(src)/mtools.conf.in 123 sed -e 's|@OBJ@|$(obj)|g' < $< > $@ 124 125# This requires write access to /dev/fd0 126bzdisk: $(obj)/bzImage $(obj)/mtools.conf 127 MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync 128 syslinux /dev/fd0 ; sync 129 echo '$(image_cmdline)' | \ 130 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg 131 if [ -f '$(FDINITRD)' ] ; then \ 132 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \ 133 fi 134 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux ; sync 135 136# These require being root or having syslinux 2.02 or higher installed 137fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf 138 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440 139 MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync 140 syslinux $(obj)/fdimage ; sync 141 echo '$(image_cmdline)' | \ 142 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg 143 if [ -f '$(FDINITRD)' ] ; then \ 144 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \ 145 fi 146 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux ; sync 147 148fdimage288: $(obj)/bzImage $(obj)/mtools.conf 149 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880 150 MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync 151 syslinux $(obj)/fdimage ; sync 152 echo '$(image_cmdline)' | \ 153 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg 154 if [ -f '$(FDINITRD)' ] ; then \ 155 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \ 156 fi 157 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux ; sync 158 159isoimage: $(obj)/bzImage 160 -rm -rf $(obj)/isoimage 161 mkdir $(obj)/isoimage 162 for i in lib lib64 share end ; do \ 163 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \ 164 cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \ 165 if [ -f /usr/$$i/syslinux/ldlinux.c32 ]; then \ 166 cp /usr/$$i/syslinux/ldlinux.c32 $(obj)/isoimage ; \ 167 fi ; \ 168 break ; \ 169 fi ; \ 170 if [ $$i = end ] ; then exit 1 ; fi ; \ 171 done 172 cp $(obj)/bzImage $(obj)/isoimage/linux 173 echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg 174 if [ -f '$(FDINITRD)' ] ; then \ 175 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \ 176 fi 177 mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \ 178 -no-emul-boot -boot-load-size 4 -boot-info-table \ 179 $(obj)/isoimage 180 isohybrid $(obj)/image.iso 2>/dev/null || true 181 rm -rf $(obj)/isoimage 182 183bzlilo: $(obj)/bzImage 184 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi 185 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi 186 cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz 187 cp System.map $(INSTALL_PATH)/ 188 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi 189 190install: 191 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \ 192 System.map "$(INSTALL_PATH)" 193