source: mainline/kernel/generic/include/debug/sections.h@ da13982

topic/msim-upgrade topic/simplify-dev-export
Last change on this file since da13982 was da13982, checked in by Jiří Zárevúcky <zarevucky.jiri@…>, 20 months ago

Read symbol table from ELF sections

Instead of the currently broken data generated using genmap.py,
read the ELF symbol table for stack traces and symbol names.
In addition to that, prepare ground for accessing DWARF debug
sections.

Because neither .symtab, nor .debug_* sections are
normally part of the program image, these have to be provided
externally. Instead of the previous way of relinking kernel
to bake in the symbol data, we now only link kernel once
and the extra debug data is loaded as part of the initrd image.
  • Property mode set to 100644
File size: 2.3 KB
Line 
1/*
2 * Copyright (c) 2023 Jiří Zárevúcky
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef DEBUG_SECTIONS_H_
30#define DEBUG_SECTIONS_H_
31
32#include <abi/elf.h>
33#include <stddef.h>
34
35extern const void *debug_aranges;
36extern size_t debug_aranges_size;
37
38extern const void *debug_info;
39extern size_t debug_info_size;
40
41extern const void *debug_abbrev;
42extern size_t debug_abbrev_size;
43
44extern const void *debug_line;
45extern size_t debug_line_size;
46
47extern const char *debug_str;
48extern size_t debug_str_size;
49
50extern const char *debug_line_str;
51extern size_t debug_line_str_size;
52
53extern const void *debug_rnglists;
54extern size_t debug_rnglists_size;
55
56extern const void *eh_frame_hdr;
57extern size_t eh_frame_hdr_size;
58
59extern const void *eh_frame;
60extern size_t eh_frame_size;
61
62extern const elf_symbol_t *symtab;
63extern size_t symtab_size;
64
65extern const char *strtab;
66extern size_t strtab_size;
67
68#endif /* DEBUG_SECTIONS_H_ */
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