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 12# Sanitizer runtimes are unavailable and cannot be linked for early boot code. 13KASAN_SANITIZE := n 14KCSAN_SANITIZE := n 15OBJECT_FILES_NON_STANDARD := y 16 17# Kernel does not boot with kcov instrumentation here. 18# One of the problems observed was insertion of __sanitizer_cov_trace_pc() 19# callback into middle of per-cpu data enabling code. Thus the callback observed 20# inconsistent state and crashed. We are interested mostly in syscall coverage, 21# so boot code is not interesting anyway. 22KCOV_INSTRUMENT := n 23 24# If you want to preset the SVGA mode, uncomment the next line and 25# set SVGA_MODE to whatever number you want. 26# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode. 27# The number is the same as you would ordinarily press at bootup. 28 29SVGA_MODE := -DSVGA_MODE=NORMAL_VGA 30 31targets := vmlinux.bin setup.bin setup.elf bzImage 32targets += fdimage fdimage144 fdimage288 image.iso mtools.conf 33subdir- := compressed 34 35setup-y += a20.o bioscall.o cmdline.o copy.o cpu.o cpuflags.o cpucheck.o 36setup-y += early_serial_console.o edd.o header.o main.o memory.o 37setup-y += pm.o pmjump.o printf.o regs.o string.o tty.o video.o 38setup-y += video-mode.o version.o 39setup-$(CONFIG_X86_APM_BOOT) += apm.o 40 41# The link order of the video-*.o modules can matter. In particular, 42# video-vga.o *must* be listed first, followed by video-vesa.o. 43# Hardware-specific drivers should follow in the order they should be 44# probed, and video-bios.o should typically be last. 45setup-y += video-vga.o 46setup-y += video-vesa.o 47setup-y += video-bios.o 48 49targets += $(setup-y) 50hostprogs-y := tools/build 51hostprogs-$(CONFIG_X86_FEATURE_NAMES) += mkcpustr 52 53HOST_EXTRACFLAGS += -I$(srctree)/tools/include \ 54 -include include/generated/autoconf.h \ 55 -D__EXPORTED_HEADERS__ 56 57ifdef CONFIG_X86_FEATURE_NAMES 58$(obj)/cpu.o: $(obj)/cpustr.h 59 60quiet_cmd_cpustr = CPUSTR $@ 61 cmd_cpustr = $(obj)/mkcpustr > $@ 62targets += cpustr.h 63$(obj)/cpustr.h: $(obj)/mkcpustr FORCE 64 $(call if_changed,cpustr) 65endif 66clean-files += cpustr.h 67 68# --------------------------------------------------------------------------- 69 70KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP 71KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ 72GCOV_PROFILE := n 73UBSAN_SANITIZE := n 74 75$(obj)/bzImage: asflags-y := $(SVGA_MODE) 76 77quiet_cmd_image = BUILD $@ 78silent_redirect_image = >/dev/null 79cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \ 80 $(obj)/zoffset.h $@ $($(quiet)redirect_image) 81 82$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE 83 $(call if_changed,image) 84 @$(kecho) 'Kernel: $@ is ready' ' (#'`cat .version`')' 85 86OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S 87$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE 88 $(call if_changed,objcopy) 89 90SETUP_OBJS = $(addprefix $(obj)/,$(setup-y)) 91 92sed-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' 93 94quiet_cmd_zoffset = ZOFFSET $@ 95 cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@ 96 97targets += zoffset.h 98$(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE 99 $(call if_changed,zoffset) 100 101 102AFLAGS_header.o += -I$(objtree)/$(obj) 103$(obj)/header.o: $(obj)/zoffset.h 104 105LDFLAGS_setup.elf := -m elf_i386 -T 106$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE 107 $(call if_changed,ld) 108 109OBJCOPYFLAGS_setup.bin := -O binary 110$(obj)/setup.bin: $(obj)/setup.elf FORCE 111 $(call if_changed,objcopy) 112 113$(obj)/compressed/vmlinux: FORCE 114 $(Q)$(MAKE) $(build)=$(obj)/compressed $@ 115 116# Set this if you want to pass append arguments to the 117# bzdisk/fdimage/isoimage kernel 118FDARGS = 119# Set this if you want an initrd included with the 120# bzdisk/fdimage/isoimage kernel 121FDINITRD = 122 123image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,) 124 125$(obj)/mtools.conf: $(src)/mtools.conf.in 126 sed -e 's|@OBJ@|$(obj)|g' < $< > $@ 127 128quiet_cmd_genimage = GENIMAGE $3 129cmd_genimage = sh $(srctree)/$(src)/genimage.sh $2 $3 $(obj)/bzImage \ 130 $(obj)/mtools.conf '$(image_cmdline)' $(FDINITRD) 131 132# This requires write access to /dev/fd0 133bzdisk: $(obj)/bzImage $(obj)/mtools.conf 134 $(call cmd,genimage,bzdisk,/dev/fd0) 135 136# These require being root or having syslinux 2.02 or higher installed 137fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf 138 $(call cmd,genimage,fdimage144,$(obj)/fdimage) 139 @$(kecho) 'Kernel: $(obj)/fdimage is ready' 140 141fdimage288: $(obj)/bzImage $(obj)/mtools.conf 142 $(call cmd,genimage,fdimage288,$(obj)/fdimage) 143 @$(kecho) 'Kernel: $(obj)/fdimage is ready' 144 145isoimage: $(obj)/bzImage 146 $(call cmd,genimage,isoimage,$(obj)/image.iso) 147 @$(kecho) 'Kernel: $(obj)/image.iso is ready' 148 149bzlilo: $(obj)/bzImage 150 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi 151 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi 152 cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz 153 cp System.map $(INSTALL_PATH)/ 154 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi 155 156install: 157 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \ 158 System.map "$(INSTALL_PATH)" 159