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 += $(setup-y) 48hostprogs := tools/build 49hostprogs += mkcpustr 50 51HOST_EXTRACFLAGS += -I$(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__ 70KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) 71GCOV_PROFILE := n 72UBSAN_SANITIZE := n 73 74$(obj)/bzImage: asflags-y := $(SVGA_MODE) 75 76quiet_cmd_image = BUILD $@ 77silent_redirect_image = >/dev/null 78cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \ 79 $(obj)/zoffset.h $@ $($(quiet)redirect_image) 80 81$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE 82 $(call if_changed,image) 83 @$(kecho) 'Kernel: $@ is ready' ' (#'`cat .version`')' 84 85OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S 86$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE 87 $(call if_changed,objcopy) 88 89SETUP_OBJS = $(addprefix $(obj)/,$(setup-y)) 90 91sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [a-zA-Z] \(startup_32\|startup_64\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|input_data\|kernel_info\|_end\|_ehead\|_text\|z_.*\)$$/\#define ZO_\2 0x\1/p' 92 93quiet_cmd_zoffset = ZOFFSET $@ 94 cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@ 95 96targets += zoffset.h 97$(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE 98 $(call if_changed,zoffset) 99 100 101AFLAGS_header.o += -I$(objtree)/$(obj) 102$(obj)/header.o: $(obj)/zoffset.h 103 104LDFLAGS_setup.elf := -m elf_i386 -T 105$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE 106 $(call if_changed,ld) 107 108OBJCOPYFLAGS_setup.bin := -O binary 109$(obj)/setup.bin: $(obj)/setup.elf FORCE 110 $(call if_changed,objcopy) 111 112$(obj)/compressed/vmlinux: FORCE 113 $(Q)$(MAKE) $(build)=$(obj)/compressed $@ 114 115# Set this if you want to pass append arguments to the 116# bzdisk/fdimage/isoimage kernel 117FDARGS = 118# Set this if you want an initrd included with the 119# bzdisk/fdimage/isoimage kernel 120FDINITRD = 121 122image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,) 123 124$(obj)/mtools.conf: $(src)/mtools.conf.in 125 sed -e 's|@OBJ@|$(obj)|g' < $< > $@ 126 127quiet_cmd_genimage = GENIMAGE $3 128cmd_genimage = sh $(srctree)/$(src)/genimage.sh $2 $3 $(obj)/bzImage \ 129 $(obj)/mtools.conf '$(image_cmdline)' $(FDINITRD) 130 131# This requires write access to /dev/fd0 132bzdisk: $(obj)/bzImage $(obj)/mtools.conf 133 $(call cmd,genimage,bzdisk,/dev/fd0) 134 135# These require being root or having syslinux 2.02 or higher installed 136fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf 137 $(call cmd,genimage,fdimage144,$(obj)/fdimage) 138 @$(kecho) 'Kernel: $(obj)/fdimage is ready' 139 140fdimage288: $(obj)/bzImage $(obj)/mtools.conf 141 $(call cmd,genimage,fdimage288,$(obj)/fdimage) 142 @$(kecho) 'Kernel: $(obj)/fdimage is ready' 143 144isoimage: $(obj)/bzImage 145 $(call cmd,genimage,isoimage,$(obj)/image.iso) 146 @$(kecho) 'Kernel: $(obj)/image.iso is ready' 147 148bzlilo: $(obj)/bzImage 149 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi 150 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi 151 cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz 152 cp System.map $(INSTALL_PATH)/ 153 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi 154 155install: 156 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \ 157 System.map "$(INSTALL_PATH)" 158