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 := $(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 $@ 76silent_redirect_image = >/dev/null 77cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \ 78 $(obj)/zoffset.h $@ $($(quiet)redirect_image) 79 80$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE 81 $(call if_changed,image) 82 @$(kecho) 'Kernel: $@ is ready' ' (#'`cat .version`')' 83 84OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S 85$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE 86 $(call if_changed,objcopy) 87 88SETUP_OBJS = $(addprefix $(obj)/,$(setup-y)) 89 90sed-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' 91 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 99 100AFLAGS_header.o += -I$(objtree)/$(obj) 101$(obj)/header.o: $(obj)/zoffset.h 102 103LDFLAGS_setup.elf := -T 104$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE 105 $(call if_changed,ld) 106 107OBJCOPYFLAGS_setup.bin := -O binary 108$(obj)/setup.bin: $(obj)/setup.elf FORCE 109 $(call if_changed,objcopy) 110 111$(obj)/compressed/vmlinux: FORCE 112 $(Q)$(MAKE) $(build)=$(obj)/compressed $@ 113 114# Set this if you want to pass append arguments to the 115# bzdisk/fdimage/isoimage kernel 116FDARGS = 117# Set this if you want an initrd included with the 118# bzdisk/fdimage/isoimage kernel 119FDINITRD = 120 121image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,) 122 123$(obj)/mtools.conf: $(src)/mtools.conf.in 124 sed -e 's|@OBJ@|$(obj)|g' < $< > $@ 125 126# This requires write access to /dev/fd0 127bzdisk: $(obj)/bzImage $(obj)/mtools.conf 128 MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync 129 syslinux /dev/fd0 ; sync 130 echo '$(image_cmdline)' | \ 131 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg 132 if [ -f '$(FDINITRD)' ] ; then \ 133 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \ 134 fi 135 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux ; sync 136 137# These require being root or having syslinux 2.02 or higher installed 138fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf 139 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440 140 MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync 141 syslinux $(obj)/fdimage ; sync 142 echo '$(image_cmdline)' | \ 143 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg 144 if [ -f '$(FDINITRD)' ] ; then \ 145 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \ 146 fi 147 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux ; sync 148 149fdimage288: $(obj)/bzImage $(obj)/mtools.conf 150 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880 151 MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync 152 syslinux $(obj)/fdimage ; sync 153 echo '$(image_cmdline)' | \ 154 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg 155 if [ -f '$(FDINITRD)' ] ; then \ 156 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \ 157 fi 158 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux ; sync 159 160isoimage: $(obj)/bzImage 161 -rm -rf $(obj)/isoimage 162 mkdir $(obj)/isoimage 163 for i in lib lib64 share end ; do \ 164 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \ 165 cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \ 166 if [ -f /usr/$$i/syslinux/ldlinux.c32 ]; then \ 167 cp /usr/$$i/syslinux/ldlinux.c32 $(obj)/isoimage ; \ 168 fi ; \ 169 break ; \ 170 fi ; \ 171 if [ $$i = end ] ; then exit 1 ; fi ; \ 172 done 173 cp $(obj)/bzImage $(obj)/isoimage/linux 174 echo '$(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 181 isohybrid $(obj)/image.iso 2>/dev/null || true 182 rm -rf $(obj)/isoimage 183 184bzlilo: $(obj)/bzImage 185 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 187 cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz 188 cp System.map $(INSTALL_PATH)/ 189 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi 190 191install: 192 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \ 193 System.map "$(INSTALL_PATH)" 194