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/* Locate the shared object symbol nearest a given address.
Copyright (C) 2003-2013 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
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