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-voffset := -e 's/^\([0-9a-fA-F]*\) [ABCDGRSTVW] \(_text\|_end\)$$/\#define VO_\2 0x\1/p' 90 91quiet_cmd_voffset = VOFFSET $@ 92 cmd_voffset = $(NM) $< | sed -n $(sed-voffset) > $@ 93 94targets += voffset.h 95$(obj)/voffset.h: vmlinux FORCE 96 $(call if_changed,voffset) 97 98sed-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' 99 100quiet_cmd_zoffset = ZOFFSET $@ 101 cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@ 102 103targets += zoffset.h 104$(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE 105 $(call if_changed,zoffset) 106 107 108AFLAGS_header.o += -I$(obj) 109$(obj)/header.o: $(obj)/voffset.h $(obj)/zoffset.h 110 111LDFLAGS_setup.elf := -T 112$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE 113 $(call if_changed,ld) 114 115OBJCOPYFLAGS_setup.bin := -O binary 116$(obj)/setup.bin: $(obj)/setup.elf FORCE 117 $(call if_changed,objcopy) 118 119$(obj)/compressed/vmlinux: FORCE 120 $(Q)$(MAKE) $(build)=$(obj)/compressed $@ 121 122# Set this if you want to pass append arguments to the 123# bzdisk/fdimage/isoimage kernel 124FDARGS = 125# Set this if you want an initrd included with the 126# bzdisk/fdimage/isoimage kernel 127FDINITRD = 128 129image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,) 130 131$(obj)/mtools.conf: $(src)/mtools.conf.in 132 sed -e 's|@OBJ@|$(obj)|g' < $< > $@ 133 134# This requires write access to /dev/fd0 135bzdisk: $(obj)/bzImage $(obj)/mtools.conf 136 MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync 137 syslinux /dev/fd0 ; sync 138 echo '$(image_cmdline)' | \ 139 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg 140 if [ -f '$(FDINITRD)' ] ; then \ 141 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \ 142 fi 143 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux ; sync 144 145# These require being root or having syslinux 2.02 or higher installed 146fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf 147 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440 148 MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync 149 syslinux $(obj)/fdimage ; sync 150 echo '$(image_cmdline)' | \ 151 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg 152 if [ -f '$(FDINITRD)' ] ; then \ 153 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \ 154 fi 155 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux ; sync 156 157fdimage288: $(obj)/bzImage $(obj)/mtools.conf 158 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880 159 MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync 160 syslinux $(obj)/fdimage ; sync 161 echo '$(image_cmdline)' | \ 162 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg 163 if [ -f '$(FDINITRD)' ] ; then \ 164 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \ 165 fi 166 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux ; sync 167 168isoimage: $(obj)/bzImage 169 -rm -rf $(obj)/isoimage 170 mkdir $(obj)/isoimage 171 for i in lib lib64 share end ; do \ 172 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \ 173 cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \ 174 break ; \ 175 fi ; \ 176 if [ $$i = end ] ; then exit 1 ; fi ; \ 177 done 178 cp $(obj)/bzImage $(obj)/isoimage/linux 179 echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg 180 if [ -f '$(FDINITRD)' ] ; then \ 181 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \ 182 fi 183 mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \ 184 -no-emul-boot -boot-load-size 4 -boot-info-table \ 185 $(obj)/isoimage 186 isohybrid $(obj)/image.iso 2>/dev/null || true 187 rm -rf $(obj)/isoimage 188 189bzlilo: $(obj)/bzImage 190 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi 191 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi 192 cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz 193 cp System.map $(INSTALL_PATH)/ 194 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi 195 196install: 197 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \ 198 System.map "$(INSTALL_PATH)" 199