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/* ELF symbol resolve functions for VDSO objects.
Copyright (C) 2005-2019 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. */
static inline struct r_found_version
prepare_version_base (const char *name, ElfW(Word) hash)
{
assert (hash == _dl_elf_hash (name));
return (struct r_found_version) { name, hash, 1, NULL };
}
#define prepare_version(vname) \
prepare_version_base (VDSO_NAME_##vname, VDSO_HASH_##vname)
/* 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) \
struct r_found_version var = prepare_version (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
#define VDSO_NAME_LINUX_2_6_39 "LINUX_2.6.39"
#define VDSO_HASH_LINUX_2_6_39 123718537
#define VDSO_NAME_LINUX_4_9 "LINUX_4.9"
#define VDSO_HASH_LINUX_4_9 61765625
#define VDSO_NAME_LINUX_4_15 "LINUX_4.15"
#define VDSO_HASH_LINUX_4_15 182943605
/* Functions for resolving symbols in the VDSO link map. */
extern void *_dl_vdso_vsym (const char *name,
const struct r_found_version *version)
attribute_hidden;
#endif /* dl-vdso.h */
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