summaryrefslogtreecommitdiff
path: root/arch/x86/boot/Makefile
blob: e2839b5c246c21e45ee2f783e92c2abb04bb93ea (plain)
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
#
# 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.
#

KASAN_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 mtools.conf
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		+= $(setup-y)
hostprogs-y	:= tools/build
hostprogs-$(CONFIG_X86_FEATURE_NAMES) += mkcpustr

HOST_EXTRACFLAGS += -I$(srctree)/tools/include \
		    -include include/generated/autoconf.h \
	            -D__EXPORTED_HEADERS__

ifdef CONFIG_X86_FEATURE_NAMES
$(obj)/cpu.o: $(obj)/cpustr.h

quiet_cmd_cpustr = CPUSTR  $@
      cmd_cpustr = $(obj)/mkcpustr > $@
targets += cpustr.h
$(obj)/cpustr.h: $(obj)/mkcpustr FORCE
	$(call if_changed,cpustr)
endif
clean-files += cpustr.h

# ---------------------------------------------------------------------------

KBUILD_CFLAGS	:= $(REALMODE_CFLAGS) -D_SETUP
KBUILD_AFLAGS	:= $(KBUILD_CFLAGS) -D__ASSEMBLY__
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' ' (#'`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/^\([0-9a-fA-F]*\) [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'

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 -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/isoimage kernel
FDARGS =
# Set this if you want an initrd included with the
# bzdisk/fdimage/isoimage kernel
FDINITRD =

image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)

$(obj)/mtools.conf: $(src)/mtools.conf.in
	sed -e 's|@OBJ@|$(obj)|g' < $< > $@

quiet_cmd_genimage = GENIMAGE $3
cmd_genimage = sh $(srctree)/$(src)/genimage.sh $2 $3 $(obj)/bzImage \
			$(obj)/mtools.conf '$(image_cmdline)' $(FDINITRD)

# This requires write access to /dev/fd0
bzdisk: $(obj)/bzImage $(obj)/mtools.conf
	$(call cmd,genimage,bzdisk,/dev/fd0)

# These require being root or having syslinux 2.02 or higher installed
fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
	$(call cmd,genimage,fdimage144,$(obj)/fdimage)
	@$(kecho) 'Kernel: $(obj)/fdimage is ready'

fdimage288: $(obj)/bzImage $(obj)/mtools.conf
	$(call cmd,genimage,fdimage288,$(obj)/fdimage)
	@$(kecho) 'Kernel: $(obj)/fdimage is ready'

isoimage: $(obj)/bzImage
	$(call cmd,genimage,isoimage,$(obj)/image.iso)
	@$(kecho) 'Kernel: $(obj)/image.iso is ready'

bzlilo: $(obj)/bzImage
	if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
	if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
	cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz
	cp System.map $(INSTALL_PATH)/
	if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi

install:
	sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
		System.map "$(INSTALL_PATH)"