| /* ELF symbol resolve functions for VDSO objects. |
| Copyright (C) 2005-2014 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/>. */ |
| |
| #ifndef _DL_VDSO_H |
| #define _DL_VDSO_H 1 |
| |
| #include <assert.h> |
| #include <ldsodefs.h> |
| #include <dl-hash.h> |
| |
| /* Create version number record for lookup. */ |
| #define PREPARE_VERSION(var, vname, vhash) \ |
| struct r_found_version var; \ |
| var.name = vname; \ |
| var.hidden = 1; \ |
| var.hash = vhash; \ |
| assert (var.hash == _dl_elf_hash (var.name)); \ |
| /* We don't have a specific file where the symbol can be found. */ \ |
| var.filename = NULL |
| |
| /* Use this for the known version sets defined below, where we |
| record their precomputed hash values only once, in this file. */ |
| #define PREPARE_VERSION_KNOWN(var, vname) \ |
| PREPARE_VERSION (var, VDSO_NAME_##vname, VDSO_HASH_##vname) |
| |
| #define VDSO_NAME_LINUX_2_6 "LINUX_2.6" |
| #define VDSO_HASH_LINUX_2_6 61765110 |
| #define VDSO_NAME_LINUX_2_6_15 "LINUX_2.6.15" |
| #define VDSO_HASH_LINUX_2_6_15 123718565 |
| #define VDSO_NAME_LINUX_2_6_29 "LINUX_2.6.29" |
| #define VDSO_HASH_LINUX_2_6_29 123718585 |
| |
| /* Functions for resolving symbols in the VDSO link map. */ |
| extern void *_dl_vdso_vsym (const char *name, |
| const struct r_found_version *version) |
| internal_function attribute_hidden; |
| |
| #endif /* dl-vdso.h */ |
