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/* ELF symbol resolve functions for VDSO objects.
Copyright (C) 2005, 2007 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>
#ifdef NDEBUG
# define CHECK_HASH(var) do {} while (0)
#else
# include <dl-hash.h>
# define CHECK_HASH(var) assert (var.hash == _dl_elf_hash (var.name))
#endif
/* 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; \
CHECK_HASH (var); \
/* We don't have a specific file where the symbol can be found. */ \
var.filename = NULL
/* 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 */
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