diff options
Diffstat (limited to 'dlfcn/dlopenold.c')
-rw-r--r-- | dlfcn/dlopenold.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/dlfcn/dlopenold.c b/dlfcn/dlopenold.c new file mode 100644 index 0000000000..f453cfb881 --- /dev/null +++ b/dlfcn/dlopenold.c @@ -0,0 +1,61 @@ +/* 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> + +/* This file is for compatibility with glibc 2.0. Compile it only if + versioning is used. */ +#if defined PIC && DO_VERSIONING + +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_nocheck (const char *file, int mode) +{ + struct dlopen_args args; + args.file = file; + args.caller = __builtin_return_address (0); + + if ((mode & RTLD_BINDING_MASK) == 0) + /* By default assume RTLD_LAZY. */ + mode |= RTLD_LAZY; + args.mode = mode; + + return _dlerror_run (dlopen_doit, &args) ? NULL : args.new; +} +symbol_version (__dlopen_nocheck, dlopen, GLIBC_2.0); +#endif |