1 # SPDX-License-Identifier: GPL-2.0 <<
2 # 1 #
3 # linux/arch/x86/boot/compressed/Makefile !! 2 # This file is subject to the terms and conditions of the GNU General Public
>> 3 # License.
4 # 4 #
5 # create a compressed vmlinux image from the o !! 5 # Adapted for MIPS Pete Popov, Dan Malek
6 # 6 #
7 # vmlinuz is: !! 7 # Copyright (C) 1994 by Linus Torvalds
8 # decompression code (*.o) !! 8 # Adapted for PowerPC by Gary Thomas
9 # asm globals (piggy.S), including: !! 9 # modified by Cort (cort@cs.nmt.edu)
10 # vmlinux.bin.(gz|bz2|lzma|...) !! 10 #
11 # !! 11 # Copyright (C) 2009 Lemote Inc. & DSLab, Lanzhou University
12 # vmlinux.bin is: !! 12 # Author: Wu Zhangjin <wuzhangjin@gmail.com>
13 # vmlinux stripped of debugging and comm !! 13 #
14 # vmlinux.bin.all is: !! 14
15 # vmlinux.bin + vmlinux.relocs !! 15 include $(srctree)/arch/mips/Kbuild.platforms
16 # vmlinux.bin.(gz|bz2|lzma|...) is: !! 16
17 # (see scripts/Makefile.lib size_append) !! 17 # set the default size of the mallocing area for decompressing
18 # compressed vmlinux.bin.all + u32 size !! 18 BOOT_HEAP_SIZE := 0x400000
19 !! 19
20 targets := vmlinux vmlinux.bin vmlinux.bin.gz !! 20 # Disable Function Tracer
21 vmlinux.bin.xz vmlinux.bin.lzo vmlinux !! 21 KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_FTRACE), $(KBUILD_CFLAGS))
22 !! 22
23 # CLANG_FLAGS must come before any cc-disable- !! 23 KBUILD_CFLAGS := $(filter-out -fstack-protector, $(KBUILD_CFLAGS))
24 # case of cross compiling, as it has the '--ta !! 24
25 # avoid errors with '-march=i386', and future !! 25 # Disable lq/sq in zboot
26 # be valid. !! 26 ifdef CONFIG_CPU_LOONGSON64
27 KBUILD_CFLAGS := -m$(BITS) -O2 $(CLANG_FLAGS) !! 27 KBUILD_CFLAGS := $(filter-out -march=loongson3a, $(KBUILD_CFLAGS)) -march=mips64r2
28 KBUILD_CFLAGS += -fno-strict-aliasing -fPIE !! 28 endif
29 KBUILD_CFLAGS += -Wundef !! 29
30 KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING !! 30 KBUILD_CFLAGS := $(KBUILD_CFLAGS) -D__KERNEL__ -D__DISABLE_EXPORTS \
31 cflags-$(CONFIG_X86_32) := -march=i386 !! 31 -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull"
32 cflags-$(CONFIG_X86_64) := -mcmodel=small -mno !! 32
33 KBUILD_CFLAGS += $(cflags-y) !! 33 KBUILD_AFLAGS := $(KBUILD_AFLAGS) -D__ASSEMBLY__ \
34 KBUILD_CFLAGS += -mno-mmx -mno-sse !! 34 -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \
35 KBUILD_CFLAGS += -ffreestanding -fshort-wchar !! 35 -DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS)
36 KBUILD_CFLAGS += -fno-stack-protector !! 36
37 KBUILD_CFLAGS += $(call cc-disable-warning, ad !! 37 # decompressor objects (linked with vmlinuz)
38 KBUILD_CFLAGS += $(call cc-disable-warning, gn !! 38 vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o $(obj)/bswapsi.o
39 KBUILD_CFLAGS += -Wno-pointer-sign !! 39
40 KBUILD_CFLAGS += $(call cc-option,-fmacro-pref !! 40 ifdef CONFIG_DEBUG_ZBOOT
41 KBUILD_CFLAGS += -fno-asynchronous-unwind-tabl !! 41 vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT) += $(obj)/dbg.o
42 KBUILD_CFLAGS += -D__DISABLE_EXPORTS !! 42 vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
43 # Disable relocation relaxation in case the li !! 43 vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART_PROM) += $(obj)/uart-prom.o
44 KBUILD_CFLAGS += $(call cc-option,-Wa$(comma)- !! 44 vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o
45 KBUILD_CFLAGS += -include $(srctree)/include/l !! 45 vmlinuzobjs-$(CONFIG_ATH79) += $(obj)/uart-ath79.o
46 !! 46 endif
47 # sev.c indirectly includes inat-table.h which !! 47
48 # compilation and stored in $(objtree). Add th !! 48 vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o
49 # that the compiler finds it even with out-of- !! 49
50 CFLAGS_sev.o += -I$(objtree)/arch/x86/lib/ !! 50 vmlinuzobjs-$(CONFIG_KERNEL_ZSTD) += $(obj)/bswapdi.o $(obj)/ashldi3.o $(obj)/clz_ctz.o
51 !! 51
52 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBL !! 52 targets := $(notdir $(vmlinuzobjs-y))
53 !! 53
54 KBUILD_LDFLAGS := -m elf_$(UTS_MACHINE) !! 54 targets += vmlinux.bin
55 KBUILD_LDFLAGS += $(call ld-option,--no-ld-gen !! 55
56 # Compressed kernel should be built as PIE sin !! 56 OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
57 # address by the bootloader. <<
58 LDFLAGS_vmlinux := -pie $(call ld-option, --no <<
59 ifdef CONFIG_LD_ORPHAN_WARN <<
60 LDFLAGS_vmlinux += --orphan-handling=$(CONFIG_ <<
61 endif <<
62 LDFLAGS_vmlinux += -z noexecstack <<
63 ifeq ($(CONFIG_LD_IS_BFD),y) <<
64 LDFLAGS_vmlinux += $(call ld-option,--no-warn- <<
65 endif <<
66 ifeq ($(CONFIG_EFI_STUB),y) <<
67 # ensure that the static EFI stub library will <<
68 # never referenced explicitly from the startup <<
69 LDFLAGS_vmlinux += -u efi_pe_entry <<
70 endif <<
71 LDFLAGS_vmlinux += -T <<
72 <<
73 hostprogs := mkpiggy <<
74 HOST_EXTRACFLAGS += -I$(srctree)/tools/include <<
75 <<
76 sed-voffset := -e 's/^\([0-9a-fA-F]*\) [ABCDGR <<
77 <<
78 quiet_cmd_voffset = VOFFSET $@ <<
79 cmd_voffset = $(NM) $< | sed -n $(sed-vo <<
80 <<
81 targets += ../voffset.h <<
82 <<
83 $(obj)/../voffset.h: vmlinux FORCE <<
84 $(call if_changed,voffset) <<
85 <<
86 $(obj)/misc.o: $(obj)/../voffset.h <<
87 <<
88 vmlinux-objs-y := $(obj)/vmlinux.lds $(obj)/ke <<
89 $(obj)/misc.o $(obj)/string.o $(obj)/c <<
90 $(obj)/piggy.o $(obj)/cpuflags.o <<
91 <<
92 vmlinux-objs-$(CONFIG_EARLY_PRINTK) += $(obj)/ <<
93 vmlinux-objs-$(CONFIG_RANDOMIZE_BASE) += $(obj <<
94 ifdef CONFIG_X86_64 <<
95 vmlinux-objs-y += $(obj)/ident_map_64. <<
96 vmlinux-objs-y += $(obj)/idt_64.o $(ob <<
97 vmlinux-objs-$(CONFIG_AMD_MEM_ENCRYPT) <<
98 vmlinux-objs-y += $(obj)/pgtable_64.o <<
99 vmlinux-objs-$(CONFIG_AMD_MEM_ENCRYPT) <<
100 endif <<
101 <<
102 vmlinux-objs-$(CONFIG_ACPI) += $(obj)/acpi.o <<
103 vmlinux-objs-$(CONFIG_INTEL_TDX_GUEST) += $(ob <<
104 vmlinux-objs-$(CONFIG_UNACCEPTED_MEMORY) += $( <<
105 <<
106 vmlinux-objs-$(CONFIG_EFI) += $(obj)/efi.o <<
107 vmlinux-objs-$(CONFIG_EFI_MIXED) += $(obj)/efi <<
108 vmlinux-libs-$(CONFIG_EFI_STUB) += $(objtree)/ <<
109 57
110 $(obj)/vmlinux: $(vmlinux-objs-y) $(vmlinux-li !! 58 $(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
111 $(call if_changed,ld) !! 59 $(call if_changed,objcopy)
>> 60
>> 61 tool_$(CONFIG_KERNEL_GZIP) = gzip
>> 62 tool_$(CONFIG_KERNEL_BZIP2) = bzip2_with_size
>> 63 tool_$(CONFIG_KERNEL_LZ4) = lz4_with_size
>> 64 tool_$(CONFIG_KERNEL_LZMA) = lzma_with_size
>> 65 tool_$(CONFIG_KERNEL_LZO) = lzo_with_size
>> 66 tool_$(CONFIG_KERNEL_XZ) = xzkern_with_size
>> 67 tool_$(CONFIG_KERNEL_ZSTD) = zstd22_with_size
>> 68
>> 69 targets += vmlinux.bin.z
>> 70
>> 71 $(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE
>> 72 $(call if_changed,$(tool_y))
112 73
113 OBJCOPYFLAGS_vmlinux.bin := -R .comment -S !! 74 targets += piggy.o dummy.o
114 $(obj)/vmlinux.bin: vmlinux FORCE !! 75
>> 76 OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \
>> 77 --set-section-flags=.image=contents,alloc,load,readonly,data
>> 78
>> 79 $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
115 $(call if_changed,objcopy) 80 $(call if_changed,objcopy)
116 81
117 targets += $(patsubst $(obj)/%,%,$(vmlinux-obj !! 82 HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUXINCLUDE)
>> 83
>> 84 # Calculate the load address of the compressed kernel image
>> 85 hostprogs := calc_vmlinuz_load_addr
>> 86
>> 87 ifneq (0x0,$(CONFIG_ZBOOT_LOAD_ADDRESS))
>> 88 zload-y = $(CONFIG_ZBOOT_LOAD_ADDRESS)
>> 89 endif
>> 90
>> 91 ifneq ($(zload-y),)
>> 92 VMLINUZ_LOAD_ADDRESS := $(zload-y)
>> 93 else
>> 94 VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
>> 95 $(obj)/vmlinux.bin $(LINKER_LOAD_ADDRESS))
>> 96 endif
>> 97 UIMAGE_LOADADDR = $(VMLINUZ_LOAD_ADDRESS)
>> 98
>> 99 vmlinuzobjs-y += $(obj)/piggy.o
>> 100
>> 101 targets += ../../../../vmlinuz
>> 102
>> 103 quiet_cmd_zld = LD $@
>> 104 cmd_zld = $(LD) $(KBUILD_LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
>> 105 quiet_cmd_strip = STRIP $@
>> 106 cmd_strip = $(STRIP) -s $@
>> 107
>> 108 $(objtree)/vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr
>> 109 $(call cmd,zld)
>> 110 $(call cmd,strip)
>> 111
>> 112 objboot := $(objtree)/arch/mips/boot
>> 113
>> 114 $(objboot)/vmlinuz: $(objtree)/vmlinuz FORCE
>> 115
>> 116 #
>> 117 # Some DECstations need all possible sections of an ECOFF executable
>> 118 #
>> 119 ifdef CONFIG_MACH_DECSTATION
>> 120 e2eflag := -a
>> 121 endif
>> 122
>> 123 # elf2ecoff can only handle 32bit image
>> 124 hostprogs += ../elf2ecoff
>> 125
>> 126 ifdef CONFIG_32BIT
>> 127 VMLINUZ = $(objtree)/vmlinuz
>> 128 else
>> 129 VMLINUZ = $(objboot)/vmlinuz.32
>> 130 endif
>> 131
>> 132 targets += ../vmlinuz.32
>> 133
>> 134 quiet_cmd_32 = OBJCOPY $@
>> 135 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
>> 136
>> 137 $(objboot)/vmlinuz.32: $(objtree)/vmlinuz
>> 138 $(call cmd,32)
>> 139
>> 140 targets += ../vmlinuz.ecoff
>> 141
>> 142 quiet_cmd_ecoff = ECOFF $@
>> 143 cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag)
>> 144
>> 145 $(objboot)/vmlinuz.ecoff: $(objboot)/elf2ecoff $(VMLINUZ)
>> 146 $(call cmd,ecoff)
>> 147
>> 148 targets += ../vmlinuz.bin
>> 149
>> 150 OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary
>> 151
>> 152 $(objboot)/vmlinuz.bin: $(objtree)/vmlinuz
>> 153 $(call cmd,objcopy)
>> 154
>> 155 targets += ../vmlinuz.srec
>> 156
>> 157 OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec
>> 158
>> 159 $(objboot)/vmlinuz.srec: $(objtree)/vmlinuz
>> 160 $(call cmd,objcopy)
>> 161
>> 162 targets += ../uzImage.bin
>> 163
>> 164 $(objboot)/uzImage.bin: $(objboot)/vmlinuz.bin FORCE
>> 165 $(call if_changed,uimage,none)
>> 166
>> 167 #
>> 168 # Flattened Image Tree (.itb) image
>> 169 #
>> 170
>> 171 ifeq ($(ADDR_BITS),32)
>> 172 itb_addr_cells = 1
>> 173 endif
>> 174 ifeq ($(ADDR_BITS),64)
>> 175 itb_addr_cells = 2
>> 176 endif
>> 177
>> 178 targets += ../vmlinuz.its.S
>> 179
>> 180 quiet_cmd_its_cat = CAT $@
>> 181 cmd_its_cat = cat $(real-prereqs) >$@
>> 182
>> 183 $(objboot)/vmlinuz.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS)) FORCE
>> 184 $(call if_changed,its_cat)
>> 185
>> 186 targets += ../vmlinuz.its
>> 187
>> 188 quiet_cmd_cpp_its_S = ITS $@
>> 189 cmd_cpp_its_S = $(CPP) -P -C -o $@ $< \
>> 190 -DKERNEL_NAME="\"Linux $(KERNELRELEASE)\"" \
>> 191 -DVMLINUX_BINARY="\"$(2)\"" \
>> 192 -DVMLINUX_COMPRESSION="\"none\"" \
>> 193 -DVMLINUX_LOAD_ADDRESS=$(VMLINUZ_LOAD_ADDRESS) \
>> 194 -DVMLINUX_ENTRY_ADDRESS=$(VMLINUZ_LOAD_ADDRESS) \
>> 195 -DADDR_BITS=$(ADDR_BITS) \
>> 196 -DADDR_CELLS=$(itb_addr_cells)
>> 197
>> 198 $(objboot)/vmlinuz.its: $(objboot)/vmlinuz.its.S FORCE
>> 199 $(call if_changed,cpp_its_S,vmlinuz.bin)
>> 200
>> 201 targets += ../vmlinuz.itb
>> 202
>> 203 quiet_cmd_itb-image = ITB $@
>> 204 cmd_itb-image = \
>> 205 env PATH="$(objtree)/scripts/dtc:$(PATH)" \
>> 206 $(BASH) $(MKIMAGE) \
>> 207 -D "-I dts -O dtb -p 500 \
>> 208 --include $(objtree)/arch/mips \
>> 209 --warning no-unit_address_vs_reg" \
>> 210 -f $(2) $@
118 211
119 # vmlinux.relocs is created by the vmlinux pos !! 212 $(objboot)/vmlinuz.itb: $(objboot)/vmlinuz.its $(objboot)/vmlinuz.bin FORCE
120 $(obj)/vmlinux.relocs: vmlinux !! 213 $(call if_changed,itb-image,$<)
121 @true <<
122 <<
123 vmlinux.bin.all-y := $(obj)/vmlinux.bin <<
124 vmlinux.bin.all-$(CONFIG_X86_NEED_RELOCS) += $ <<
125 <<
126 $(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FO <<
127 $(call if_changed,gzip) <<
128 $(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) F <<
129 $(call if_changed,bzip2_with_size) <<
130 $(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) <<
131 $(call if_changed,lzma_with_size) <<
132 $(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FO <<
133 $(call if_changed,xzkern_with_size) <<
134 $(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) F <<
135 $(call if_changed,lzo_with_size) <<
136 $(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y) F <<
137 $(call if_changed,lz4_with_size) <<
138 $(obj)/vmlinux.bin.zst: $(vmlinux.bin.all-y) F <<
139 $(call if_changed,zstd22_with_size) <<
140 <<
141 suffix-$(CONFIG_KERNEL_GZIP) := gz <<
142 suffix-$(CONFIG_KERNEL_BZIP2) := bz2 <<
143 suffix-$(CONFIG_KERNEL_LZMA) := lzma <<
144 suffix-$(CONFIG_KERNEL_XZ) := xz <<
145 suffix-$(CONFIG_KERNEL_LZO) := lzo <<
146 suffix-$(CONFIG_KERNEL_LZ4) := lz4 <<
147 suffix-$(CONFIG_KERNEL_ZSTD) := zst <<
148 <<
149 quiet_cmd_mkpiggy = MKPIGGY $@ <<
150 cmd_mkpiggy = $(obj)/mkpiggy $< > $@ <<
151 <<
152 targets += piggy.S <<
153 $(obj)/piggy.S: $(obj)/vmlinux.bin.$(suffix-y) <<
154 $(call if_changed,mkpiggy) <<
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.