blob: 11e1a50b8f70869023d2233fd46d64f9f2e66037 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
/* Thread-local storage descriptor handling in the ELF dynamic linker.
x86_64 version.
Copyright (C) 2005-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <stdint.h>
#ifndef _X86_64_DL_TLSDESC_H
# define _X86_64_DL_TLSDESC_H 1
/* Type used to represent a TLS descriptor in the GOT. */
struct tlsdesc
{
/* Anonymous union is used here to ensure that GOT entry slot is always
8 bytes for both x32 and x86-64. */
union
{
ptrdiff_t (*entry) (struct tlsdesc *on_rax);
uint64_t entry_slot;
};
union
{
void *arg;
uint64_t arg_slot;
};
};
typedef struct dl_tls_index
{
uint64_t ti_module;
uint64_t ti_offset;
} tls_index;
/* Type used as the argument in a TLS descriptor for a symbol that
needs dynamic TLS offsets. */
struct tlsdesc_dynamic_arg
{
tls_index tlsinfo;
size_t gen_count;
};
extern ptrdiff_t attribute_hidden
_dl_tlsdesc_return(struct tlsdesc *on_rax),
_dl_tlsdesc_undefweak(struct tlsdesc *on_rax),
_dl_tlsdesc_resolve_rela(struct tlsdesc *on_rax),
_dl_tlsdesc_resolve_hold(struct tlsdesc *on_rax);
# ifdef SHARED
extern void *_dl_make_tlsdesc_dynamic (struct link_map *map,
size_t ti_offset)
internal_function attribute_hidden;
extern ptrdiff_t attribute_hidden _dl_tlsdesc_dynamic(struct tlsdesc *);
# endif
#endif
|
