diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/dl-vdso.h')
| -rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/dl-vdso.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/dl-vdso.h b/REORG.TODO/sysdeps/unix/sysv/linux/dl-vdso.h new file mode 100644 index 0000000000..8923883f88 --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/dl-vdso.h @@ -0,0 +1,53 @@ +/* ELF symbol resolve functions for VDSO objects. + Copyright (C) 2005-2017 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 */ |