| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* Thread-local storage descriptor handling in the ELF dynamic linker. |
| 2 | i386 version. |
| 3 | Copyright (C) 2005-2015 Free Software Foundation, Inc. |
| 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; without 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 |
| 17 | License along with the GNU C Library; if not, see |
| 18 | <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #ifndef _I386_DL_TLSDESC_H |
| 21 | # define _I386_DL_TLSDESC_H 1 |
| 22 | |
| 23 | /* Type used to represent a TLS descriptor in the GOT. */ |
| 24 | struct tlsdesc |
| 25 | { |
| 26 | ptrdiff_t __attribute__ ((regparm (1))) (*entry) (struct tlsdesc *); |
| 27 | void *arg; |
| 28 | }; |
| 29 | |
| 30 | typedef struct dl_tls_index |
| 31 | { |
| 32 | unsigned long int ti_module; |
| 33 | unsigned long int ti_offset; |
| 34 | } tls_index; |
| 35 | |
| 36 | /* Type used as the argument in a TLS descriptor for a symbol that |
| 37 | needs dynamic TLS offsets. */ |
| 38 | struct tlsdesc_dynamic_arg |
| 39 | { |
| 40 | tls_index tlsinfo; |
| 41 | size_t gen_count; |
| 42 | }; |
| 43 | |
| 44 | extern ptrdiff_t attribute_hidden __attribute__ ((regparm (1))) |
| 45 | _dl_tlsdesc_return (struct tlsdesc *), |
| 46 | _dl_tlsdesc_undefweak (struct tlsdesc *), |
| 47 | _dl_tlsdesc_resolve_abs_plus_addend (struct tlsdesc *), |
| 48 | _dl_tlsdesc_resolve_rel (struct tlsdesc *), |
| 49 | _dl_tlsdesc_resolve_rela (struct tlsdesc *), |
| 50 | _dl_tlsdesc_resolve_hold (struct tlsdesc *); |
| 51 | |
| 52 | # ifdef SHARED |
| 53 | extern void *internal_function _dl_make_tlsdesc_dynamic (struct link_map *map, |
| 54 | size_t ti_offset); |
| 55 | |
| 56 | extern ptrdiff_t attribute_hidden __attribute__ ((regparm (1))) |
| 57 | _dl_tlsdesc_dynamic (struct tlsdesc *); |
| 58 | # endif |
| 59 | |
| 60 | #endif |