1 /* SPDX-License-Identifier: GPL-2.0 */
2 #include <asm-generic/vmlinux.lds.h>
3
4 OUTPUT_FORMAT(CONFIG_OUTPUT_FORMAT)
5
6 #undef i386
7
8 #include <asm/cache.h>
9 #include <asm/page_types.h>
10
11 #ifdef CONFIG_X86_64
12 OUTPUT_ARCH(i386:x86-64)
13 ENTRY(startup_64)
14 #else
15 OUTPUT_ARCH(i386)
16 ENTRY(startup_32)
17 #endif
18
19 SECTIONS
20 {
21 /* Be careful parts of head_64.S assume startup_32 is at
22 * address 0.
23 */
24 . = 0;
25 .head.text : {
26 _head = . ;
27 HEAD_TEXT
28 _ehead = . ;
29 }
30 .rodata..compressed : {
31 *(.rodata..compressed)
32 }
33 .text : {
34 _text = .; /* Text */
35 *(.text)
36 *(.text.*)
37 *(.noinstr.text)
38 _etext = . ;
39 }
40 .rodata : {
41 _rodata = . ;
42 *(.rodata) /* read-only data */
43 *(.rodata.*)
44 _erodata = . ;
45 }
46 .data : ALIGN(0x1000) {
47 _data = . ;
48 *(.data)
49 *(.data.*)
50
51 /* Add 4 bytes of extra space for a CRC-32 checksum */
52 . = ALIGN(. + 4, 0x200);
53 _edata = . ;
54 }
55 . = ALIGN(L1_CACHE_BYTES);
56 .bss : {
57 _bss = . ;
58 *(.bss)
59 *(.bss.*)
60 *(COMMON)
61 . = ALIGN(8); /* For convenience during zeroing */
62 _ebss = .;
63 }
64 #ifdef CONFIG_X86_64
65 . = ALIGN(PAGE_SIZE);
66 .pgtable : {
67 _pgtable = . ;
68 *(.pgtable)
69 _epgtable = . ;
70 }
71 #endif
72 . = ALIGN(PAGE_SIZE); /* keep ZO size page aligned */
73 _end = .;
74
75 STABS_DEBUG
76 DWARF_DEBUG
77 ELF_DETAILS
78
79 DISCARDS
80 /DISCARD/ : {
81 *(.dynamic) *(.dynsym) *(.dynstr) *(.dynbss)
82 *(.hash) *(.gnu.hash)
83 *(.note.*)
84 }
85
86 .got.plt (INFO) : {
87 *(.got.plt)
88 }
89 ASSERT(SIZEOF(.got.plt) == 0 ||
90 #ifdef CONFIG_X86_64
91 SIZEOF(.got.plt) == 0x18,
92 #else
93 SIZEOF(.got.plt) == 0xc,
94 #endif
95 "Unexpected GOT/PLT entries detected!")
96
97 /*
98 * Sections that should stay zero sized, which is safer to
99 * explicitly check instead of blindly discarding.
100 */
101 .got : {
102 *(.got)
103 }
104 ASSERT(SIZEOF(.got) == 0, "Unexpected GOT entries detected!")
105
106 .plt : {
107 *(.plt) *(.plt.*)
108 }
109 ASSERT(SIZEOF(.plt) == 0, "Unexpected run-time procedure linkages detected!")
110
111 .rel.dyn : {
112 *(.rel.*) *(.rel_*)
113 }
114 ASSERT(SIZEOF(.rel.dyn) == 0, "Unexpected run-time relocations (.rel) detected!")
115
116 .rela.dyn : {
117 *(.rela.*) *(.rela_*)
118 }
119 ASSERT(SIZEOF(.rela.dyn) == 0, "Unexpected run-time relocations (.rela) detected!")
120 }
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