1/* SPDX-License-Identifier: GPL-2.0 */
2#include <linux/sizes.h>
3#include <asm/asm-offsets.h>
4#include <asm/thread_info.h>
5#include <asm/orc_lookup.h>
6
7#define PAGE_SIZE _PAGE_SIZE
8#define RO_EXCEPTION_TABLE_ALIGN 4
9
10/*
11 * Put .bss..swapper_pg_dir as the first thing in .bss. This will
12 * ensure that it has .bss alignment (64K).
13 */
14#define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir)
15
16#include <asm-generic/vmlinux.lds.h>
17#include "image-vars.h"
18
19/*
20 * Max avaliable Page Size is 64K, so we set SectionAlignment
21 * field of EFI application to 64K.
22 */
23PECOFF_FILE_ALIGN = 0x200;
24PECOFF_SEGMENT_ALIGN = 0x10000;
25
26OUTPUT_ARCH(loongarch)
27ENTRY(kernel_entry)
28PHDRS {
29 text PT_LOAD FLAGS(7); /* RWX */
30 note PT_NOTE FLAGS(4); /* R__ */
31}
32
33jiffies = jiffies_64;
34
35SECTIONS
36{
37 . = VMLINUX_LOAD_ADDRESS;
38
39 _text = .;
40 HEAD_TEXT_SECTION
41
42 . = ALIGN(PECOFF_SEGMENT_ALIGN);
43 _stext = .;
44 .text : {
45 TEXT_TEXT
46 SCHED_TEXT
47 LOCK_TEXT
48 KPROBES_TEXT
49 IRQENTRY_TEXT
50 SOFTIRQENTRY_TEXT
51 *(.fixup)
52 *(.gnu.warning)
53 } :text = 0
54 . = ALIGN(PECOFF_SEGMENT_ALIGN);
55 _etext = .;
56
57 . = ALIGN(PECOFF_SEGMENT_ALIGN);
58 __init_begin = .;
59 __inittext_begin = .;
60
61 INIT_TEXT_SECTION(PAGE_SIZE)
62 .exit.text : {
63 EXIT_TEXT
64 }
65
66 . = ALIGN(PECOFF_SEGMENT_ALIGN);
67 __inittext_end = .;
68
69 __initdata_begin = .;
70
71 /*
72 * struct alt_inst entries. From the header (alternative.h):
73 * "Alternative instructions for different CPU types or capabilities"
74 * Think locking instructions on spinlocks.
75 */
76 . = ALIGN(4);
77 .altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
78 __alt_instructions = .;
79 *(.altinstructions)
80 __alt_instructions_end = .;
81 }
82
83 INIT_DATA_SECTION(16)
84 .exit.data : {
85 EXIT_DATA
86 }
87
88#ifdef CONFIG_SMP
89 PERCPU_SECTION(1 << CONFIG_L1_CACHE_SHIFT)
90#endif
91
92 .init.bss : {
93 *(.init.bss)
94 }
95 . = ALIGN(PECOFF_SEGMENT_ALIGN);
96 __initdata_end = .;
97
98 __init_end = .;
99
100 _sdata = .;
101 RO_DATA(4096)
102
103 .got : ALIGN(16) { *(.got) }
104 .plt : ALIGN(16) { *(.plt) }
105 .got.plt : ALIGN(16) { *(.got.plt) }
106
107 RW_DATA(1 << CONFIG_L1_CACHE_SHIFT, PAGE_SIZE, THREAD_SIZE)
108
109 .rela.dyn : ALIGN(8) {
110 __rela_dyn_begin = .;
111 *(.rela.dyn) *(.rela*)
112 __rela_dyn_end = .;
113 }
114
115 .data.rel : { *(.data.rel*) }
116
117#ifdef CONFIG_RELOCATABLE
118 . = ALIGN(8);
119 .la_abs : AT(ADDR(.la_abs) - LOAD_OFFSET) {
120 __la_abs_begin = .;
121 *(.la_abs)
122 __la_abs_end = .;
123 }
124#endif
125
126 ORC_UNWIND_TABLE
127
128 .sdata : {
129 *(.sdata)
130 }
131 .edata_padding : { BYTE(0); . = ALIGN(PECOFF_FILE_ALIGN); }
132 _edata = .;
133
134 BSS_SECTION(0, SZ_64K, 8)
135 . = ALIGN(PECOFF_SEGMENT_ALIGN);
136
137 _end = .;
138
139 STABS_DEBUG
140 DWARF_DEBUG
141 ELF_DETAILS
142
143#ifdef CONFIG_EFI_STUB
144 /* header symbols */
145 _kernel_asize = _end - _text;
146 _kernel_fsize = _edata - _text;
147 _kernel_vsize = _end - __initdata_begin;
148 _kernel_rsize = _edata - __initdata_begin;
149#endif
150
151 .gptab.sdata : {
152 *(.gptab.data)
153 *(.gptab.sdata)
154 }
155 .gptab.sbss : {
156 *(.gptab.bss)
157 *(.gptab.sbss)
158 }
159
160 DISCARDS
161 /DISCARD/ : {
162 *(.dynamic .dynsym .dynstr .hash .gnu.hash)
163 *(.gnu.attributes)
164 *(.options)
165 *(.eh_frame)
166 }
167}
168

source code of linux/arch/loongarch/kernel/vmlinux.lds.S