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/* Load a shared object at run time.
Copyright (C) 1995, 1996, 1997, 1998, 1999 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <dlfcn.h>
#include <stddef.h>
struct dlopen_args
{
/* The arguments for dlopen_doit. */
const char *file;
int mode;
/* The return value of dlopen_doit. */
void *new;
/* Address of the caller. */
const void *caller;
};
static void
dlopen_doit (void *a)
{
struct dlopen_args *args = (struct dlopen_args *) a;
args->new = _dl_open (args->file ?: "", args->mode, args->caller);
}
void *
__dlopen_check (const char *file, int mode)
{
struct dlopen_args args;
args.file = file;
args.mode = mode;
args.caller = __builtin_return_address (0);
return _dlerror_run (dlopen_doit, &args) ? NULL : args.new;
}
#if defined PIC && defined DO_VERSIONING
default_symbol_version (__dlopen_check, dlopen, GLIBC_2.1);
#else
weak_alias (__dlopen_check, dlopen)
#endif
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