1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (C) 2012 Regents of the University of California
4 * Copyright (C) 2017 SiFive
5 * Copyright (C) 2020 Vitaly Wool, Konsulko AB
6 */
7
8 #include <asm/pgtable.h>
9 #define LOAD_OFFSET KERNEL_LINK_ADDR
10 /* No __ro_after_init data in the .rodata section - which will always be ro */
11 #define RO_AFTER_INIT_DATA
12
13 #include <asm/vmlinux.lds.h>
14 #include <asm/page.h>
15 #include <asm/cache.h>
16 #include <asm/thread_info.h>
17 #include <asm/set_memory.h>
18
19 OUTPUT_ARCH(riscv)
20 ENTRY(_start)
21
22 jiffies = jiffies_64;
23
24 SECTIONS
25 {
26 /* Beginning of code and text segment */
27 . = LOAD_OFFSET;
28 _xiprom = .;
29 _start = .;
30 HEAD_TEXT_SECTION
31 INIT_TEXT_SECTION(PAGE_SIZE)
32 /* we have to discard exit text and such at runtime, not link time */
33 __exittext_begin = .;
34 .exit.text :
35 {
36 EXIT_TEXT
37 }
38 __exittext_end = .;
39
40 .text : {
41 _text = .;
42 _stext = .;
43 TEXT_TEXT
44 SCHED_TEXT
45 LOCK_TEXT
46 KPROBES_TEXT
47 ENTRY_TEXT
48 IRQENTRY_TEXT
49 SOFTIRQENTRY_TEXT
50 _etext = .;
51 }
52 RO_DATA(L1_CACHE_BYTES)
53 .srodata : {
54 *(.srodata*)
55 }
56 .init.rodata : {
57 INIT_SETUP(16)
58 INIT_CALLS
59 CON_INITCALL
60 INIT_RAM_FS
61 }
62 _exiprom = .; /* End of XIP ROM area */
63
64
65 /*
66 * From this point, stuff is considered writable and will be copied to RAM
67 */
68 __data_loc = ALIGN(PAGE_SIZE); /* location in file */
69 . = ALIGN(SECTION_ALIGN); /* location in memory */
70
71 #undef LOAD_OFFSET
72 #define LOAD_OFFSET (KERNEL_LINK_ADDR + _sdata - __data_loc)
73
74 _sdata = .; /* Start of data section */
75 _data = .;
76 RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
77 _edata = .;
78 __start_ro_after_init = .;
79 .data.ro_after_init : AT(ADDR(.data.ro_after_init) - LOAD_OFFSET) {
80 *(.data..ro_after_init)
81 }
82 __end_ro_after_init = .;
83
84 . = ALIGN(PAGE_SIZE);
85 __init_begin = .;
86 .init.data : {
87 INIT_DATA
88 }
89 .exit.data : {
90 EXIT_DATA
91 }
92 . = ALIGN(8);
93 __soc_early_init_table : {
94 __soc_early_init_table_start = .;
95 KEEP(*(__soc_early_init_table))
96 __soc_early_init_table_end = .;
97 }
98 __soc_builtin_dtb_table : {
99 __soc_builtin_dtb_table_start = .;
100 KEEP(*(__soc_builtin_dtb_table))
101 __soc_builtin_dtb_table_end = .;
102 }
103
104 __init_end = .;
105
106 . = ALIGN(16);
107 .xip.traps : {
108 __xip_traps_start = .;
109 *(.xip.traps)
110 __xip_traps_end = .;
111 }
112
113 . = ALIGN(PAGE_SIZE);
114 .sdata : {
115 __global_pointer$ = . + 0x800;
116 *(.sdata*)
117 *(.sbss*)
118 }
119
120 BSS_SECTION(PAGE_SIZE, PAGE_SIZE, 0)
121
122 PERCPU_SECTION(L1_CACHE_BYTES)
123
124 .rel.dyn : AT(ADDR(.rel.dyn) - LOAD_OFFSET) {
125 *(.rel.dyn*)
126 }
127
128 /*
129 * End of copied data. We need a dummy section to get its LMA.
130 * Also located before final ALIGN() as trailing padding is not stored
131 * in the resulting binary file and useless to copy.
132 */
133 .data.endmark : AT(ADDR(.data.endmark) - LOAD_OFFSET) { }
134 _edata_loc = LOADADDR(.data.endmark);
135
136 . = ALIGN(PAGE_SIZE);
137 _end = .;
138
139 STABS_DEBUG
140 DWARF_DEBUG
141
142 DISCARDS
143 }
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