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aca1daef | 1 | /* Generic declarations for DTV-based TLS handling in the dynamic linker. |
6d7e8eda | 2 | Copyright (C) 2002-2023 Free Software Foundation, Inc. |
aca1daef FW |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library 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 GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
aca1daef FW |
18 | |
19 | #ifndef _DL_DTV_H | |
20 | #define _DL_DTV_H | |
21 | ||
a2ff21f8 FW |
22 | struct dtv_pointer |
23 | { | |
24 | void *val; /* Pointer to data, or TLS_DTV_UNALLOCATED. */ | |
25 | void *to_free; /* Unaligned pointer, for deallocation. */ | |
26 | }; | |
27 | ||
aca1daef FW |
28 | /* Type for the dtv. */ |
29 | typedef union dtv | |
30 | { | |
31 | size_t counter; | |
a2ff21f8 | 32 | struct dtv_pointer pointer; |
aca1daef FW |
33 | } dtv_t; |
34 | ||
35 | /* Value used for dtv entries for which the allocation is delayed. */ | |
36 | #define TLS_DTV_UNALLOCATED ((void *) -1l) | |
37 | ||
38 | #endif /* _DLT_DTV_H */ |