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