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3447f0d7 NS |
1 | /* Thread-local storage descriptor handling in the ELF dynamic linker. |
2 | ARM version. | |
688903eb | 3 | Copyright (C) 2005-2018 Free Software Foundation, Inc. |
3447f0d7 NS |
4 | This file is part of the GNU C Library. |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; witout even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
ab84e3ff PE |
17 | License along with the GNU C Library. If not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
3447f0d7 NS |
19 | |
20 | #ifndef _ARM_DL_TLSDESC_H | |
21 | # define _ARM_DL_TLSDESC_H 1 | |
22 | ||
3447f0d7 NS |
23 | /* Type used to represent a TLS descriptor in the GOT. */ |
24 | struct tlsdesc | |
25 | { | |
26 | union | |
27 | { | |
28 | void *pointer; | |
29 | long value; | |
30 | } argument; | |
31 | ptrdiff_t (*entry)(struct tlsdesc *); | |
32 | }; | |
33 | ||
34 | ||
35 | typedef struct dl_tls_index | |
36 | { | |
37 | unsigned long int ti_module; | |
38 | unsigned long int ti_offset; | |
39 | } tls_index; | |
40 | ||
41 | /* Type used as the argument in a TLS descriptor for a symbol that | |
42 | needs dynamic TLS offsets. */ | |
43 | struct tlsdesc_dynamic_arg | |
44 | { | |
45 | tls_index tlsinfo; | |
46 | size_t gen_count; | |
47 | }; | |
48 | ||
49 | extern ptrdiff_t attribute_hidden | |
50 | _dl_tlsdesc_return(struct tlsdesc *), | |
94d2f0af | 51 | _dl_tlsdesc_undefweak(struct tlsdesc *); |
3447f0d7 NS |
52 | |
53 | # ifdef SHARED | |
54 | extern void *_dl_make_tlsdesc_dynamic (struct link_map *map, size_t ti_offset); | |
55 | ||
56 | extern ptrdiff_t attribute_hidden | |
57 | _dl_tlsdesc_dynamic(struct tlsdesc *); | |
58 | # endif | |
59 | ||
60 | #endif |