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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | # # arch/x86/boot/Makefile # # This file is subject to the terms and conditions of the GNU General Public # License. See the file "COPYING" in the main directory of this archive # for more details. # # Copyright (C) 1994 by Linus Torvalds # Changed by many, many contributors over the years. # # Sanitizer runtimes are unavailable and cannot be linked for early boot code. KASAN_SANITIZE := n KCSAN_SANITIZE := n KMSAN_SANITIZE := n OBJECT_FILES_NON_STANDARD := y # Kernel does not boot with kcov instrumentation here. # One of the problems observed was insertion of __sanitizer_cov_trace_pc() # callback into middle of per-cpu data enabling code. Thus the callback observed # inconsistent state and crashed. We are interested mostly in syscall coverage, # so boot code is not interesting anyway. KCOV_INSTRUMENT := n # If you want to preset the SVGA mode, uncomment the next line and # set SVGA_MODE to whatever number you want. # Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode. # The number is the same as you would ordinarily press at bootup. SVGA_MODE := -DSVGA_MODE=NORMAL_VGA targets := vmlinux.bin setup.bin setup.elf bzImage targets += fdimage fdimage144 fdimage288 image.iso hdimage subdir- := compressed setup-y += a20.o bioscall.o cmdline.o copy.o cpu.o cpuflags.o cpucheck.o setup-y += early_serial_console.o edd.o header.o main.o memory.o setup-y += pm.o pmjump.o printf.o regs.o string.o tty.o video.o setup-y += video-mode.o version.o setup-$(CONFIG_X86_APM_BOOT) += apm.o # The link order of the video-*.o modules can matter. In particular, # video-vga.o *must* be listed first, followed by video-vesa.o. # Hardware-specific drivers should follow in the order they should be # probed, and video-bios.o should typically be last. setup-y += video-vga.o setup-y += video-vesa.o setup-y += video-bios.o targets += $(setup-y) hostprogs := tools/build hostprogs += mkcpustr HOST_EXTRACFLAGS += -I$(srctree)/tools/include \ -include include/generated/autoconf.h \ -D__EXPORTED_HEADERS__ $(obj)/cpu.o: $(obj)/cpustr.h quiet_cmd_cpustr = CPUSTR $@ cmd_cpustr = $(obj)/mkcpustr > $@ $(obj)/cpustr.h: $(obj)/mkcpustr FORCE $(call if_changed,cpustr) targets += cpustr.h # --------------------------------------------------------------------------- KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) KBUILD_CFLAGS += -fno-asynchronous-unwind-tables GCOV_PROFILE := n UBSAN_SANITIZE := n $(obj)/bzImage: asflags-y := $(SVGA_MODE) quiet_cmd_image = BUILD $@ silent_redirect_image = >/dev/null cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \ $(obj)/zoffset.h $@ $($(quiet)redirect_image) $(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE $(call if_changed,image) @$(kecho) 'Kernel: $@ is ready' ' (#'$(or $(KBUILD_BUILD_VERSION),`cat .version`)')' OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE $(call if_changed,objcopy) SETUP_OBJS = $(addprefix $(obj)/,$(setup-y)) sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [a-zA-Z] \(startup_32\|startup_64\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|efi32_pe_entry\|input_data\|kernel_info\|_end\|_ehead\|_text\|z_.*\)$$/\#define ZO_\2 0x\1/p' quiet_cmd_zoffset = ZOFFSET $@ cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@ targets += zoffset.h $(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE $(call if_changed,zoffset) AFLAGS_header.o += -I$(objtree)/$(obj) $(obj)/header.o: $(obj)/zoffset.h LDFLAGS_setup.elf := -m elf_i386 -z noexecstack -T $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE $(call if_changed,ld) OBJCOPYFLAGS_setup.bin := -O binary $(obj)/setup.bin: $(obj)/setup.elf FORCE $(call if_changed,objcopy) $(obj)/compressed/vmlinux: FORCE $(Q)$(MAKE) $(build)=$(obj)/compressed $@ # Set this if you want to pass append arguments to the # bzdisk/fdimage/hdimage/isoimage kernel FDARGS = # Set this if you want one or more initrds included in the image FDINITRD = imgdeps = $(obj)/bzImage $(obj)/mtools.conf $(src)/genimage.sh $(obj)/mtools.conf: $(src)/mtools.conf.in sed -e 's|@OBJ@|$(obj)|g' < $< > $@ targets += mtools.conf # genimage.sh requires bash, but it also has a bunch of other # external dependencies. quiet_cmd_genimage = GENIMAGE $3 cmd_genimage = $(BASH) $(srctree)/$(src)/genimage.sh $2 $3 $(obj)/bzImage \ $(obj)/mtools.conf '$(FDARGS)' $(FDINITRD) PHONY += bzdisk fdimage fdimage144 fdimage288 hdimage isoimage # This requires write access to /dev/fd0 # All images require syslinux to be installed; hdimage also requires # EDK2/OVMF if the kernel is compiled with the EFI stub. bzdisk: $(imgdeps) $(call cmd,genimage,bzdisk,/dev/fd0) fdimage fdimage144: $(imgdeps) $(call cmd,genimage,fdimage144,$(obj)/fdimage) @$(kecho) 'Kernel: $(obj)/fdimage is ready' fdimage288: $(imgdeps) $(call cmd,genimage,fdimage288,$(obj)/fdimage) @$(kecho) 'Kernel: $(obj)/fdimage is ready' hdimage: $(imgdeps) $(call cmd,genimage,hdimage,$(obj)/hdimage) @$(kecho) 'Kernel: $(obj)/hdimage is ready' isoimage: $(imgdeps) $(call cmd,genimage,isoimage,$(obj)/image.iso) @$(kecho) 'Kernel: $(obj)/image.iso is ready' |