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/* Locate the shared object symbol nearest a given address.
Copyright (C) 2003-2021 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
<https://www.gnu.org/licenses/>. */
#include <dlfcn.h>
#include <ldsodefs.h>
#include <shlib-compat.h>
int
__dladdr1 (const void *address, Dl_info *info, void **extra, int flags)
{
#ifdef SHARED
if (!rtld_active ())
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);
}
}
versioned_symbol (libc, __dladdr1, dladdr1, GLIBC_2_34);
#if OTHER_SHLIB_COMPAT (libdl, GLIBC_2_3_3, GLIBC_2_34)
compat_symbol (libdl, __dladdr1, dladdr1, GLIBC_2_3_3);
#endif
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