Loading...
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
15KMSAN_SANITIZE := n
16OBJECT_FILES_NON_STANDARD := y
17
18# Kernel does not boot with kcov instrumentation here.
19# One of the problems observed was insertion of __sanitizer_cov_trace_pc()
20# callback into middle of per-cpu data enabling code. Thus the callback observed
21# inconsistent state and crashed. We are interested mostly in syscall coverage,
22# so boot code is not interesting anyway.
23KCOV_INSTRUMENT := n
24
25# If you want to preset the SVGA mode, uncomment the next line and
26# set SVGA_MODE to whatever number you want.
27# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
28# The number is the same as you would ordinarily press at bootup.
29
30SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
31
32targets := vmlinux.bin setup.bin setup.elf bzImage
33targets += fdimage fdimage144 fdimage288 image.iso hdimage
34subdir- := compressed
35
36setup-y += a20.o bioscall.o cmdline.o copy.o cpu.o cpuflags.o cpucheck.o
37setup-y += early_serial_console.o edd.o header.o main.o memory.o
38setup-y += pm.o pmjump.o printf.o regs.o string.o tty.o video.o
39setup-y += video-mode.o version.o
40setup-$(CONFIG_X86_APM_BOOT) += apm.o
41
42# The link order of the video-*.o modules can matter. In particular,
43# video-vga.o *must* be listed first, followed by video-vesa.o.
44# Hardware-specific drivers should follow in the order they should be
45# probed, and video-bios.o should typically be last.
46setup-y += video-vga.o
47setup-y += video-vesa.o
48setup-y += video-bios.o
49
50targets += $(setup-y)
51hostprogs := tools/build
52hostprogs += mkcpustr
53
54HOST_EXTRACFLAGS += -I$(srctree)/tools/include \
55 -include include/generated/autoconf.h \
56 -D__EXPORTED_HEADERS__
57
58ifdef CONFIG_X86_FEATURE_NAMES
59$(obj)/cpu.o: $(obj)/cpustr.h
60
61quiet_cmd_cpustr = CPUSTR $@
62 cmd_cpustr = $(obj)/mkcpustr > $@
63$(obj)/cpustr.h: $(obj)/mkcpustr FORCE
64 $(call if_changed,cpustr)
65endif
66targets += cpustr.h
67
68# ---------------------------------------------------------------------------
69
70KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP
71KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
72KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
73KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
74GCOV_PROFILE := n
75UBSAN_SANITIZE := n
76
77$(obj)/bzImage: asflags-y := $(SVGA_MODE)
78
79quiet_cmd_image = BUILD $@
80silent_redirect_image = >/dev/null
81cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
82 $(obj)/zoffset.h $@ $($(quiet)redirect_image)
83
84$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
85 $(call if_changed,image)
86 @$(kecho) 'Kernel: $@ is ready' ' (#'$(or $(KBUILD_BUILD_VERSION),`cat .version`)')'
87
88OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
89$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
90 $(call if_changed,objcopy)
91
92SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
93
94sed-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'
95
96quiet_cmd_zoffset = ZOFFSET $@
97 cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
98
99targets += zoffset.h
100$(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE
101 $(call if_changed,zoffset)
102
103
104AFLAGS_header.o += -I$(objtree)/$(obj)
105$(obj)/header.o: $(obj)/zoffset.h
106
107LDFLAGS_setup.elf := -m elf_i386 -z noexecstack -T
108$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
109 $(call if_changed,ld)
110
111OBJCOPYFLAGS_setup.bin := -O binary
112$(obj)/setup.bin: $(obj)/setup.elf FORCE
113 $(call if_changed,objcopy)
114
115$(obj)/compressed/vmlinux: FORCE
116 $(Q)$(MAKE) $(build)=$(obj)/compressed $@
117
118# Set this if you want to pass append arguments to the
119# bzdisk/fdimage/hdimage/isoimage kernel
120FDARGS =
121# Set this if you want one or more initrds included in the image
122FDINITRD =
123
124imgdeps = $(obj)/bzImage $(obj)/mtools.conf $(src)/genimage.sh
125
126$(obj)/mtools.conf: $(src)/mtools.conf.in
127 sed -e 's|@OBJ@|$(obj)|g' < $< > $@
128
129targets += mtools.conf
130
131# genimage.sh requires bash, but it also has a bunch of other
132# external dependencies.
133quiet_cmd_genimage = GENIMAGE $3
134cmd_genimage = $(BASH) $(srctree)/$(src)/genimage.sh $2 $3 $(obj)/bzImage \
135 $(obj)/mtools.conf '$(FDARGS)' $(FDINITRD)
136
137PHONY += bzdisk fdimage fdimage144 fdimage288 hdimage isoimage
138
139# This requires write access to /dev/fd0
140# All images require syslinux to be installed; hdimage also requires
141# EDK2/OVMF if the kernel is compiled with the EFI stub.
142bzdisk: $(imgdeps)
143 $(call cmd,genimage,bzdisk,/dev/fd0)
144
145fdimage fdimage144: $(imgdeps)
146 $(call cmd,genimage,fdimage144,$(obj)/fdimage)
147 @$(kecho) 'Kernel: $(obj)/fdimage is ready'
148
149fdimage288: $(imgdeps)
150 $(call cmd,genimage,fdimage288,$(obj)/fdimage)
151 @$(kecho) 'Kernel: $(obj)/fdimage is ready'
152
153hdimage: $(imgdeps)
154 $(call cmd,genimage,hdimage,$(obj)/hdimage)
155 @$(kecho) 'Kernel: $(obj)/hdimage is ready'
156
157isoimage: $(imgdeps)
158 $(call cmd,genimage,isoimage,$(obj)/image.iso)
159 @$(kecho) 'Kernel: $(obj)/image.iso is ready'
1#
2# arch/x86/boot/Makefile
3#
4# This file is subject to the terms and conditions of the GNU General Public
5# License. See the file "COPYING" in the main directory of this archive
6# for more details.
7#
8# Copyright (C) 1994 by Linus Torvalds
9# Changed by many, many contributors over the years.
10#
11
12# Sanitizer runtimes are unavailable and cannot be linked for early boot code.
13KASAN_SANITIZE := n
14KCSAN_SANITIZE := n
15OBJECT_FILES_NON_STANDARD := y
16
17# Kernel does not boot with kcov instrumentation here.
18# One of the problems observed was insertion of __sanitizer_cov_trace_pc()
19# callback into middle of per-cpu data enabling code. Thus the callback observed
20# inconsistent state and crashed. We are interested mostly in syscall coverage,
21# so boot code is not interesting anyway.
22KCOV_INSTRUMENT := n
23
24# If you want to preset the SVGA mode, uncomment the next line and
25# set SVGA_MODE to whatever number you want.
26# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
27# The number is the same as you would ordinarily press at bootup.
28
29SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
30
31targets := vmlinux.bin setup.bin setup.elf bzImage
32targets += fdimage fdimage144 fdimage288 image.iso mtools.conf
33subdir- := compressed
34
35setup-y += a20.o bioscall.o cmdline.o copy.o cpu.o cpuflags.o cpucheck.o
36setup-y += early_serial_console.o edd.o header.o main.o memory.o
37setup-y += pm.o pmjump.o printf.o regs.o string.o tty.o video.o
38setup-y += video-mode.o version.o
39setup-$(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 += $(setup-y)
50hostprogs := tools/build
51hostprogs += mkcpustr
52
53HOST_EXTRACFLAGS += -I$(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 > $@
62$(obj)/cpustr.h: $(obj)/mkcpustr FORCE
63 $(call if_changed,cpustr)
64endif
65targets += cpustr.h
66
67# ---------------------------------------------------------------------------
68
69KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP
70KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
71KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
72KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
73GCOV_PROFILE := n
74UBSAN_SANITIZE := n
75
76$(obj)/bzImage: asflags-y := $(SVGA_MODE)
77
78quiet_cmd_image = BUILD $@
79silent_redirect_image = >/dev/null
80cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
81 $(obj)/zoffset.h $@ $($(quiet)redirect_image)
82
83$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
84 $(call if_changed,image)
85 @$(kecho) 'Kernel: $@ is ready' ' (#'`cat .version`')'
86
87OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
88$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
89 $(call if_changed,objcopy)
90
91SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
92
93sed-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'
94
95quiet_cmd_zoffset = ZOFFSET $@
96 cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
97
98targets += zoffset.h
99$(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE
100 $(call if_changed,zoffset)
101
102
103AFLAGS_header.o += -I$(objtree)/$(obj)
104$(obj)/header.o: $(obj)/zoffset.h
105
106LDFLAGS_setup.elf := -m elf_i386 -T
107$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
108 $(call if_changed,ld)
109
110OBJCOPYFLAGS_setup.bin := -O binary
111$(obj)/setup.bin: $(obj)/setup.elf FORCE
112 $(call if_changed,objcopy)
113
114$(obj)/compressed/vmlinux: FORCE
115 $(Q)$(MAKE) $(build)=$(obj)/compressed $@
116
117# Set this if you want to pass append arguments to the
118# bzdisk/fdimage/isoimage kernel
119FDARGS =
120# Set this if you want an initrd included with the
121# bzdisk/fdimage/isoimage kernel
122FDINITRD =
123
124image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
125
126$(obj)/mtools.conf: $(src)/mtools.conf.in
127 sed -e 's|@OBJ@|$(obj)|g' < $< > $@
128
129quiet_cmd_genimage = GENIMAGE $3
130cmd_genimage = sh $(srctree)/$(src)/genimage.sh $2 $3 $(obj)/bzImage \
131 $(obj)/mtools.conf '$(image_cmdline)' $(FDINITRD)
132
133PHONY += bzdisk fdimage fdimage144 fdimage288 isoimage bzlilo install
134
135# This requires write access to /dev/fd0
136bzdisk: $(obj)/bzImage $(obj)/mtools.conf
137 $(call cmd,genimage,bzdisk,/dev/fd0)
138
139# These require being root or having syslinux 2.02 or higher installed
140fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
141 $(call cmd,genimage,fdimage144,$(obj)/fdimage)
142 @$(kecho) 'Kernel: $(obj)/fdimage is ready'
143
144fdimage288: $(obj)/bzImage $(obj)/mtools.conf
145 $(call cmd,genimage,fdimage288,$(obj)/fdimage)
146 @$(kecho) 'Kernel: $(obj)/fdimage is ready'
147
148isoimage: $(obj)/bzImage
149 $(call cmd,genimage,isoimage,$(obj)/image.iso)
150 @$(kecho) 'Kernel: $(obj)/image.iso is ready'
151
152bzlilo:
153 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
154 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
155 cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz
156 cp System.map $(INSTALL_PATH)/
157 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
158
159install:
160 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
161 System.map "$(INSTALL_PATH)"