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1/*
2 * Copyright (C) 2000 Russell King
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#ifdef CONFIG_CPU_ENDIAN_BE8
10#define ZIMAGE_MAGIC(x) ( (((x) >> 24) & 0x000000ff) | \
11 (((x) >> 8) & 0x0000ff00) | \
12 (((x) << 8) & 0x00ff0000) | \
13 (((x) << 24) & 0xff000000) )
14#else
15#define ZIMAGE_MAGIC(x) (x)
16#endif
17
18OUTPUT_ARCH(arm)
19ENTRY(_start)
20SECTIONS
21{
22 /DISCARD/ : {
23 *(.ARM.exidx*)
24 *(.ARM.extab*)
25 /*
26 * Discard any r/w data - this produces a link error if we have any,
27 * which is required for PIC decompression. Local data generates
28 * GOTOFF relocations, which prevents it being relocated independently
29 * of the text/got segments.
30 */
31 *(.data)
32 }
33
34 . = TEXT_START;
35 _text = .;
36
37 .text : {
38 _start = .;
39 *(.start)
40 *(.text)
41 *(.text.*)
42 *(.fixup)
43 *(.gnu.warning)
44 *(.glue_7t)
45 *(.glue_7)
46 }
47 .rodata : {
48 *(.rodata)
49 *(.rodata.*)
50 }
51 .data : {
52 /*
53 * The EFI stub always executes from RAM, and runs strictly before the
54 * decompressor, so we can make an exception for its r/w data, and keep it
55 */
56 *(.data.efistub)
57 }
58 .piggydata : {
59 *(.piggydata)
60 }
61
62 . = ALIGN(4);
63 _etext = .;
64
65 .got.plt : { *(.got.plt) }
66 _got_start = .;
67 .got : { *(.got) }
68 _got_end = .;
69
70 /* ensure the zImage file size is always a multiple of 64 bits */
71 /* (without a dummy byte, ld just ignores the empty section) */
72 .pad : { BYTE(0); . = ALIGN(8); }
73 _edata = .;
74
75 _magic_sig = ZIMAGE_MAGIC(0x016f2818);
76 _magic_start = ZIMAGE_MAGIC(_start);
77 _magic_end = ZIMAGE_MAGIC(_edata);
78
79 . = BSS_START;
80 __bss_start = .;
81 .bss : { *(.bss) }
82 _end = .;
83
84 . = ALIGN(8); /* the stack must be 64-bit aligned */
85 .stack : { *(.stack) }
86
87 .stab 0 : { *(.stab) }
88 .stabstr 0 : { *(.stabstr) }
89 .stab.excl 0 : { *(.stab.excl) }
90 .stab.exclstr 0 : { *(.stab.exclstr) }
91 .stab.index 0 : { *(.stab.index) }
92 .stab.indexstr 0 : { *(.stab.indexstr) }
93 .comment 0 : { *(.comment) }
94}
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2000 Russell King
4 */
5#include <asm/vmlinux.lds.h>
6
7#ifdef CONFIG_CPU_ENDIAN_BE8
8#define ZIMAGE_MAGIC(x) ( (((x) >> 24) & 0x000000ff) | \
9 (((x) >> 8) & 0x0000ff00) | \
10 (((x) << 8) & 0x00ff0000) | \
11 (((x) << 24) & 0xff000000) )
12#else
13#define ZIMAGE_MAGIC(x) (x)
14#endif
15
16OUTPUT_ARCH(arm)
17ENTRY(_start)
18SECTIONS
19{
20 /DISCARD/ : {
21 COMMON_DISCARDS
22 *(.ARM.exidx*)
23 *(.ARM.extab*)
24 *(.note.*)
25 *(.rel.*)
26 /*
27 * Discard any r/w data - this produces a link error if we have any,
28 * which is required for PIC decompression. Local data generates
29 * GOTOFF relocations, which prevents it being relocated independently
30 * of the text/got segments.
31 */
32 *(.data)
33 }
34
35 . = TEXT_START;
36 _text = .;
37
38 .text : {
39 _start = .;
40 *(.start)
41 *(.text)
42 *(.text.*)
43 ARM_STUBS_TEXT
44 }
45 .table : ALIGN(4) {
46 _table_start = .;
47 LONG(ZIMAGE_MAGIC(6))
48 LONG(ZIMAGE_MAGIC(0x5a534c4b))
49 LONG(ZIMAGE_MAGIC(__piggy_size_addr - _start))
50 LONG(ZIMAGE_MAGIC(_kernel_bss_size))
51 LONG(ZIMAGE_MAGIC(TEXT_OFFSET))
52 LONG(ZIMAGE_MAGIC(MALLOC_SIZE))
53 LONG(0)
54 _table_end = .;
55 }
56 .rodata : {
57 *(.rodata)
58 *(.rodata.*)
59 *(.data.rel.ro)
60 }
61 .piggydata : {
62 *(.piggydata)
63 __piggy_size_addr = . - 4;
64 }
65
66 . = ALIGN(4);
67 _etext = .;
68
69 .got.plt : { *(.got.plt) }
70#ifndef CONFIG_EFI_STUB
71 _got_start = .;
72 .got : { *(.got) }
73 _got_end = .;
74#endif
75
76 /* ensure the zImage file size is always a multiple of 64 bits */
77 /* (without a dummy byte, ld just ignores the empty section) */
78 .pad : { BYTE(0); . = ALIGN(8); }
79
80#ifdef CONFIG_EFI_STUB
81 .data : ALIGN(4096) {
82 __pecoff_data_start = .;
83 _got_start = .;
84 *(.got)
85 _got_end = .;
86 /*
87 * The EFI stub always executes from RAM, and runs strictly before the
88 * decompressor, so we can make an exception for its r/w data, and keep it
89 */
90 *(.data.efistub .bss.efistub)
91 __pecoff_data_end = .;
92
93 /*
94 * PE/COFF mandates a file size which is a multiple of 512 bytes if the
95 * section size equals or exceeds 4 KB
96 */
97 . = ALIGN(512);
98 }
99 __pecoff_data_rawsize = . - ADDR(.data);
100#endif
101
102 _edata = .;
103
104 /*
105 * The image_end section appears after any additional loadable sections
106 * that the linker may decide to insert in the binary image. Having
107 * this symbol allows further debug in the near future.
108 */
109 .image_end (NOLOAD) : {
110 /*
111 * EFI requires that the image is aligned to 512 bytes, and appended
112 * DTB requires that we know where the end of the image is. Ensure
113 * that both are satisfied by ensuring that there are no additional
114 * sections emitted into the decompressor image.
115 */
116 _edata_real = .;
117 }
118
119 _magic_sig = ZIMAGE_MAGIC(0x016f2818);
120 _magic_start = ZIMAGE_MAGIC(_start);
121 _magic_end = ZIMAGE_MAGIC(_edata);
122 _magic_table = ZIMAGE_MAGIC(_table_start - _start);
123
124 . = BSS_START;
125 __bss_start = .;
126 .bss : { *(.bss) }
127 _end = .;
128
129 . = ALIGN(8); /* the stack must be 64-bit aligned */
130 .stack : { *(.stack) }
131
132 PROVIDE(__pecoff_data_size = ALIGN(512) - ADDR(.data));
133 PROVIDE(__pecoff_end = ALIGN(512));
134
135 STABS_DEBUG
136 DWARF_DEBUG
137 ARM_DETAILS
138
139 ARM_ASSERTS
140}
141ASSERT(_edata_real == _edata, "error: zImage file size is incorrect");