blob: 8532469fd985e2304a6055a59996ec2256eb2693 [file] [log] [blame]
xf.libdd93d52023-05-12 07:10:14 -07001/* Thread-local storage descriptor handling in the ELF dynamic linker.
2 AArch64 version.
3 Copyright (C) 2011-2016 Free Software Foundation, Inc.
4
5 This file is part of the GNU C Library.
6
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
11
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public
18 License along with the GNU C Library; if not, see
19 <http://www.gnu.org/licenses/>. */
20
21#ifndef _AARCH64_DL_TLSDESC_H
22#define _AARCH64_DL_TLSDESC_H 1
23
24/* Type used to represent a TLS descriptor in the GOT. */
25struct tlsdesc
26{
27 ptrdiff_t (*entry) (struct tlsdesc *);
28 void *arg;
29};
30
31typedef struct dl_tls_index
32{
33 unsigned long int ti_module;
34 unsigned long int ti_offset;
35} tls_index;
36
37/* Type used as the argument in a TLS descriptor for a symbol that
38 needs dynamic TLS offsets. */
39struct tlsdesc_dynamic_arg
40{
41 tls_index tlsinfo;
42 size_t gen_count;
43};
44
45extern ptrdiff_t attribute_hidden
46_dl_tlsdesc_return (struct tlsdesc *);
47
48extern ptrdiff_t attribute_hidden
49_dl_tlsdesc_return_lazy (struct tlsdesc *);
50
51extern ptrdiff_t attribute_hidden
52_dl_tlsdesc_undefweak (struct tlsdesc *);
53
54extern ptrdiff_t attribute_hidden
55_dl_tlsdesc_resolve_rela (struct tlsdesc *);
56
57extern ptrdiff_t attribute_hidden
58_dl_tlsdesc_resolve_hold (struct tlsdesc *);
59
60# ifdef SHARED
61extern void *internal_function _dl_make_tlsdesc_dynamic (struct link_map *,
62 size_t);
63
64extern ptrdiff_t attribute_hidden
65_dl_tlsdesc_dynamic (struct tlsdesc *);
66#endif
67
68#endif