54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/* Locate the shared object symbol nearest a given address.
|
|
Copyright (C) 2003-2016 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
|
|
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 (__glibc_unlikely (_dlfcn_hook != NULL))
|
|
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
|