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review.coreboot.org / coreboot / 4c7eee27447e1a41808a11be8ce55031e97fdccf / . / src / include / symbols.h
blob: abb9fbecbc36305322dcb9e1aa9a5315c4527010 [file] [log] [blame]
Julius Wernerec5e5e02014-08-20 15:29:56 -0700[diff] [blame]1/*
2 * This file is part of the coreboot project.
3 *
4 * Copyright 2014 Google Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
Julius Wernerec5e5e02014-08-20 15:29:56 -0700[diff] [blame]14 */
15
16#ifndef __SYMBOLS_H
17#define __SYMBOLS_H
18
19#include <types.h>
20
21extern u8 _sram[];
22extern u8 _esram[];
23#define _sram_size (_esram - _sram)
24
25extern u8 _dram[];
26
Aaron Durbin1936f6c2015-07-03 17:04:21 -0500[diff] [blame]27extern u8 _timestamp[];
28extern u8 _etimestamp[];
29#define _timestamp_size (_etimestamp - _timestamp)
30
Julius Wernerec5e5e02014-08-20 15:29:56 -0700[diff] [blame]31extern u8 _preram_cbmem_console[];
32extern u8 _epreram_cbmem_console[];
33#define _preram_cbmem_console_size \
34 (_epreram_cbmem_console - _preram_cbmem_console)
35
Kyösti Mälkki4fbac462015-01-07 04:48:43 +0200[diff] [blame]36extern u8 _cbmem_init_hooks[];
37extern u8 _ecbmem_init_hooks[];
38#define _cbmem_init_hooks_size (_ecbmem_init_hooks - _cbmem_init_hooks)
39
Julius Wernerec5e5e02014-08-20 15:29:56 -0700[diff] [blame]40extern u8 _stack[];
41extern u8 _estack[];
42#define _stack_size (_estack - _stack)
43
Ronald G. Minnich5965cba2016-10-19 08:07:13 -0700[diff] [blame]44extern u8 _pagetables[];
45extern u8 _epagetables[];
46#define _pagetables_size (_epagetables - _pagetables)
47
Julius Werner757943c2015-12-16 16:07:39 -0800[diff] [blame]48extern u8 _preram_cbfs_cache[];
49extern u8 _epreram_cbfs_cache[];
50#define _preram_cbfs_cache_size (_epreram_cbfs_cache - _preram_cbfs_cache)
51
Mary Ruthvena8aef3a2015-11-24 09:43:27 -0800[diff] [blame]52extern u8 _postram_cbfs_cache[];
53extern u8 _epostram_cbfs_cache[];
54#define _postram_cbfs_cache_size (_epostram_cbfs_cache - _postram_cbfs_cache)
Mary Ruthvenf82e8ab2015-11-13 14:05:27 -0800[diff] [blame]55
Julius Wernerec5e5e02014-08-20 15:29:56 -0700[diff] [blame]56extern u8 _cbfs_cache[];
57extern u8 _ecbfs_cache[];
58#define _cbfs_cache_size (_ecbfs_cache - _cbfs_cache)
59
60extern u8 _payload[];
61extern u8 _epayload[];
62#define _payload_size (_epayload - _payload)
63
Aaron Durbin4de29d42015-09-03 22:49:36 -0500[diff] [blame]64/* "program" always refers to the current execution unit. */
Julius Wernerec5e5e02014-08-20 15:29:56 -0700[diff] [blame]65extern u8 _program[];
66extern u8 _eprogram[];
67#define _program_size (_eprogram - _program)
68
Julius Werner862c3852016-02-18 15:46:15 -0800[diff] [blame]69/* _<stage>_size is always the maximum amount allocated in memlayout, whereas
70 * _program_size gives the actual memory footprint *used* by current stage. */
Julius Werner99f46832018-05-16 14:14:04 -0700[diff] [blame]71extern u8 _decompressor[];
72extern u8 _edecompressor[];
73#define _decompressor_size (_edecompressor - _decompressor)
74
Julius Werner862c3852016-02-18 15:46:15 -0800[diff] [blame]75extern u8 _bootblock[];
76extern u8 _ebootblock[];
77#define _bootblock_size (_ebootblock - _bootblock)
78
79extern u8 _romstage[];
80extern u8 _eromstage[];
81#define _romstage_size (_eromstage - _romstage)
82
83extern u8 _ramstage[];
84extern u8 _eramstage[];
85#define _ramstage_size (_eramstage - _ramstage)
86
87extern u8 _verstage[];
88extern u8 _everstage[];
89#define _verstage_size (_everstage - _verstage)
90
Julius Wernerec5e5e02014-08-20 15:29:56 -0700[diff] [blame]91/* Arch-specific, move to <arch/symbols.h> if they become too many. */
92
93extern u8 _ttb[];
94extern u8 _ettb[];
95#define _ttb_size (_ettb - _ttb)
96
Julius Werner108548a2014-10-09 17:31:45 -0700[diff] [blame]97extern u8 _ttb_subtables[];
98extern u8 _ettb_subtables[];
99#define _ttb_subtables_size (_ettb_subtables - _ttb_subtables)
100
Julius Wernerec5e5e02014-08-20 15:29:56 -0700[diff] [blame]101extern u8 _dma_coherent[];
102extern u8 _edma_coherent[];
103#define _dma_coherent_size (_edma_coherent - _dma_coherent)
104
Ionela Voinescu7100cf22015-07-24 14:29:06 +0100[diff] [blame]105extern u8 _soc_registers[];
106extern u8 _esoc_registers[];
107#define _soc_registers_size (_esoc_registers - _soc_registers)
108
Julius Werner249f9cc2015-01-14 14:53:59 -0800[diff] [blame]109extern u8 _framebuffer[];
110extern u8 _eframebuffer[];
111#define _framebuffer_size (_eframebuffer - _framebuffer)
112
Aaron Durbin0f35af8f2018-04-18 01:00:27 -0600[diff] [blame]113extern u8 _pdpt[];
114extern u8 _epdpt[];
115#define _pdpt_size (_epdpt - _pdpt)
116
Ting Shendff29e02019-01-28 18:15:00 +0800[diff] [blame]117extern u8 _bl31[];
118extern u8 _ebl31[];
119#define _bl31_size (_ebl31 - _bl31)
120
Julius Werner8c093772016-02-09 16:09:15 -0800[diff] [blame]121/* Put this into a .c file accessing a linker script region to mark that region
122 * as "optional". If it is defined in memlayout.ld (or anywhere else), the
123 * values from that definition will be used. If not, start, end and size will
124 * all evaluate to 0. (We can't explicitly assign the symbols to 0 in the
125 * assembly due to https://sourceware.org/bugzilla/show_bug.cgi?id=1038.) */
Lee Leahy91d1e762017-03-07 14:31:19 -0800[diff] [blame]126#define DECLARE_OPTIONAL_REGION(name) asm (".weak _" #name ", _e" #name)
Julius Werner8c093772016-02-09 16:09:15 -0800[diff] [blame]127
Julius Wernerec5e5e02014-08-20 15:29:56 -0700[diff] [blame]128#endif /* __SYMBOLS_H */