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: $(obj)/image.iso is ready'
1#
2# arch/x86/boot/Makefile
3#
4# This file is subject to the terms and conditions of the GNU General Public
5# License. See the file "COPYING" in the main directory of this archive
6# for more details.
7#
8# Copyright (C) 1994 by Linus Torvalds
9# Changed by many, many contributors over the years.
10#
11
12# Sanitizer runtimes are unavailable and cannot be linked for early boot code.
13KASAN_SANITIZE := n
14KCSAN_SANITIZE := n
15KMSAN_SANITIZE := n
16OBJECT_FILES_NON_STANDARD := y
17
18# Kernel does not boot with kcov instrumentation here.
19# One of the problems observed was insertion of __sanitizer_cov_trace_pc()
20# callback into middle of per-cpu data enabling code. Thus the callback observed
21# inconsistent state and crashed. We are interested mostly in syscall coverage,
22# so boot code is not interesting anyway.
23KCOV_INSTRUMENT := n
24
25# If you want to preset the SVGA mode, uncomment the next line and
26# set SVGA_MODE to whatever number you want.
27# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
28# The number is the same as you would ordinarily press at bootup.
29
30SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
31
32targets := vmlinux.bin setup.bin setup.elf bzImage
33targets += fdimage fdimage144 fdimage288 image.iso hdimage
34subdir- := compressed
35
36setup-y += a20.o bioscall.o cmdline.o copy.o cpu.o cpuflags.o cpucheck.o
37setup-y += early_serial_console.o edd.o header.o main.o memory.o
38setup-y += pm.o pmjump.o printf.o regs.o string.o tty.o video.o
39setup-y += video-mode.o version.o
40setup-$(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
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)
64targets += 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)/=)
71KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
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: $@ is ready' ' (#'$(or $(KBUILD_BUILD_VERSION),`cat .version`)')'
85
86OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
87$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
88 $(call if_changed,objcopy)
89
90SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
91
92sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [a-zA-Z] \(startup_32\|efi.._stub_entry\|efi\(32\)\?_pe_entry\|input_data\|kernel_info\|_end\|_ehead\|_text\|_e\?data\|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: $(obj)/zoffset.h
104
105LDFLAGS_setup.elf := -m elf_i386 -z noexecstack -T
106$(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/hdimage/isoimage kernel
118FDARGS =
119# Set this if you want one or more initrds included in the image
120FDINITRD =
121
122imgdeps = $(obj)/bzImage $(obj)/mtools.conf $(src)/genimage.sh
123
124$(obj)/mtools.conf: $(src)/mtools.conf.in
125 sed -e 's|@OBJ@|$(obj)|g' < $< > $@
126
127targets += mtools.conf
128
129# genimage.sh requires bash, but it also has a bunch of other
130# external dependencies.
131quiet_cmd_genimage = GENIMAGE $3
132cmd_genimage = $(BASH) $(srctree)/$(src)/genimage.sh $2 $3 $(obj)/bzImage \
133 $(obj)/mtools.conf '$(FDARGS)' $(FDINITRD)
134
135PHONY += bzdisk fdimage fdimage144 fdimage288 hdimage isoimage
136
137# This requires write access to /dev/fd0
138# All images require syslinux to be installed; hdimage also requires
139# EDK2/OVMF if the kernel is compiled with the EFI stub.
140bzdisk: $(imgdeps)
141 $(call cmd,genimage,bzdisk,/dev/fd0)
142
143fdimage fdimage144: $(imgdeps)
144 $(call cmd,genimage,fdimage144,$(obj)/fdimage)
145 @$(kecho) 'Kernel: $(obj)/fdimage is ready'
146
147fdimage288: $(imgdeps)
148 $(call cmd,genimage,fdimage288,$(obj)/fdimage)
149 @$(kecho) 'Kernel: $(obj)/fdimage is ready'
150
151hdimage: $(imgdeps)
152 $(call cmd,genimage,hdimage,$(obj)/hdimage)
153 @$(kecho) 'Kernel: $(obj)/hdimage is ready'
154
155isoimage: $(imgdeps)
156 $(call cmd,genimage,isoimage,$(obj)/image.iso)
157 @$(kecho) 'Kernel: $(obj)/image.iso is ready'