glibc/dlfcn/dladdr.c

44 lines
1.3 KiB
C

/* Locate the shared object symbol nearest a given address.
Copyright (C) 1996-2016 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/>. */
#include <dlfcn.h>
#if !defined SHARED && IS_IN (libdl)
int
dladdr (const void *address, Dl_info *info)
{
return __dladdr (address, info);
}
#else
int
__dladdr (const void *address, Dl_info *info)
{
# ifdef SHARED
if (__glibc_unlikely (_dlfcn_hook != NULL))
return _dlfcn_hook->dladdr (address, info);
# endif
return _dl_addr (address, info, NULL, NULL);
}
# ifdef SHARED
strong_alias (__dladdr, dladdr)
# endif
#endif