diff options
Diffstat (limited to 'dlfcn/dlsym.c')
-rw-r--r-- | dlfcn/dlsym.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/dlfcn/dlsym.c b/dlfcn/dlsym.c new file mode 100644 index 0000000000..9a8fcdfbe6 --- /dev/null +++ b/dlfcn/dlsym.c @@ -0,0 +1,51 @@ +/* Look up a symbol in a shared object loaded by `dlopen'. + 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> + +struct dlsym_args +{ + /* The arguments to dlsym_doit. */ + void *handle; + const char *name; + void *who; + + /* The return value of dlsym_doit. */ + void *sym; +}; + +static void +dlsym_doit (void *a) +{ + struct dlsym_args *args = (struct dlsym_args *) a; + + args->sym = _dl_sym (args->handle, args->name, args->who); +} + + +void * +dlsym (void *handle, const char *name) +{ + struct dlsym_args args; + args.who = __builtin_return_address (0); + args.handle = handle; + args.name = name; + + return (_dlerror_run (dlsym_doit, &args) ? NULL : args.sym); +} |