| /* Locate the shared object symbol nearest a given address. |
| Copyright (C) 2003-2014 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 && defined IS_IN_libdl |
| |
| int |
| dladdr1 (const void *address, Dl_info *info, void **extra, int flags) |
| { |
| return __dladdr1 (address, info, extra, flags); |
| } |
| |
| #else |
| |
| int |
| __dladdr1 (const void *address, Dl_info *info, void **extra, int flags) |
| { |
| # ifdef SHARED |
| if (__builtin_expect (_dlfcn_hook != NULL, 0)) |
| return _dlfcn_hook->dladdr1 (address, info, extra, flags); |
| # endif |
| |
| switch (flags) |
| { |
| default: /* Make this an error? */ |
| case 0: |
| return _dl_addr (address, info, NULL, NULL); |
| case RTLD_DL_SYMENT: |
| return _dl_addr (address, info, NULL, (const ElfW(Sym) **) extra); |
| case RTLD_DL_LINKMAP: |
| return _dl_addr (address, info, (struct link_map **) extra, NULL); |
| } |
| } |
| # ifdef SHARED |
| strong_alias (__dladdr1, dladdr1) |
| # endif |
| #endif |
