projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 8c2e201b | 1 | /* ELF symbol resolve functions for VDSO objects. |
| 04277e02 | 2 | Copyright (C) 2005-2019 Free Software Foundation, Inc. |
| 8c2e201b UD |
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 | |
| 59ba27a6 | 16 | License along with the GNU C Library; if not, see |
| 5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
| 8c2e201b UD |
18 | |
| 19 | #ifndef _DL_VDSO_H | |
| 20 | #define _DL_VDSO_H 1 | |
| 21 | ||
| fb86328a | 22 | #include <assert.h> |
| fb86328a | 23 | #include <ldsodefs.h> |
| a6a056bb | 24 | #include <dl-hash.h> |
| fb86328a UD |
25 | |
| 26 | /* Create version number record for lookup. */ | |
| 589787f8 TK |
27 | static inline struct r_found_version |
| 28 | prepare_version_base (const char *name, ElfW(Word) hash) | |
| 29 | { | |
| 30 | assert (hash == _dl_elf_hash (name)); | |
| 31 | return (struct r_found_version) { name, hash, 1, NULL }; | |
| 32 | } | |
| 33 | #define prepare_version(vname) \ | |
| 34 | prepare_version_base (VDSO_NAME_##vname, VDSO_HASH_##vname) | |
| fb86328a | 35 | |
| c1487492 RM |
36 | /* Use this for the known version sets defined below, where we |
| 37 | record their precomputed hash values only once, in this file. */ | |
| 38 | #define PREPARE_VERSION_KNOWN(var, vname) \ | |
| 589787f8 | 39 | struct r_found_version var = prepare_version (vname); |
| c1487492 RM |
40 | |
| 41 | #define VDSO_NAME_LINUX_2_6 "LINUX_2.6" | |
| 42 | #define VDSO_HASH_LINUX_2_6 61765110 | |
| 43 | #define VDSO_NAME_LINUX_2_6_15 "LINUX_2.6.15" | |
| 44 | #define VDSO_HASH_LINUX_2_6_15 123718565 | |
| 45 | #define VDSO_NAME_LINUX_2_6_29 "LINUX_2.6.29" | |
| 46 | #define VDSO_HASH_LINUX_2_6_29 123718585 | |
| 85c748f9 TK |
47 | #define VDSO_NAME_LINUX_2_6_39 "LINUX_2.6.39" |
| 48 | #define VDSO_HASH_LINUX_2_6_39 123718537 | |
| 97274b18 VC |
49 | #define VDSO_NAME_LINUX_4 "LINUX_4" |
| 50 | #define VDSO_HASH_LINUX_4 14921332 | |
| 85c748f9 TK |
51 | #define VDSO_NAME_LINUX_4_9 "LINUX_4.9" |
| 52 | #define VDSO_HASH_LINUX_4_9 61765625 | |
| 150bbac1 PD |
53 | #define VDSO_NAME_LINUX_4_15 "LINUX_4.15" |
| 54 | #define VDSO_HASH_LINUX_4_15 182943605 | |
| fb86328a | 55 | |
| 8c2e201b | 56 | /* Functions for resolving symbols in the VDSO link map. */ |
| fb86328a UD |
57 | extern void *_dl_vdso_vsym (const char *name, |
| 58 | const struct r_found_version *version) | |
| 17e00cc6 | 59 | attribute_hidden; |
| 8c2e201b UD |
60 | |
| 61 | #endif /* dl-vdso.h */ |