glibc/dlfcn/libc_dlerror_result.c

40 lines
1.5 KiB
C

/* Thread-local variable holding the dlerror result.
Copyright (C) 2021-2024 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 <dlerror.h>
/* This pointer is either NULL, dl_action_result_malloc_failed (), or
has been allocated using malloc by the namespace that also contains
this instance of the thread-local variable. */
__thread struct dl_action_result *__libc_dlerror_result attribute_tls_model_ie;
/* Called during thread shutdown to free resources. */
void
__libc_dlerror_result_free (void)
{
if (__libc_dlerror_result != NULL)
{
if (__libc_dlerror_result != dl_action_result_malloc_failed)
{
dl_action_result_errstring_free (__libc_dlerror_result);
free (__libc_dlerror_result);
}
__libc_dlerror_result = NULL;
}
}