1/* Free resources stored in thread-local variables on thread exit.
2 Copyright (C) 2003-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <dlfcn/dlerror.h>
20#include <libc-internal.h>
21#include <malloc-internal.h>
22#include <resolv/resolv-internal.h>
23#include <rpc/rpc.h>
24#include <string.h>
25#include <tls-internal.h>
26#include <shlib-compat.h>
27
28/* Thread shutdown function. Note that this function must be called
29 for threads during shutdown for correctness reasons. Unlike
30 __libc_subfreeres, skipping calls to it is not a valid optimization.
31 This is called directly from pthread_create as the thread exits. */
32void
33__libc_thread_freeres (void)
34{
35#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_32)
36 __rpc_thread_destroy ();
37#endif
38 call_function_static_weak (__res_thread_freeres);
39 call_function_static_weak (__glibc_tls_internal_free);
40 call_function_static_weak (__libc_dlerror_result_free);
41
42 /* This should come last because it shuts down malloc for this
43 thread and the other shutdown functions might well call free. */
44 call_function_static_weak (__malloc_arena_thread_freeres);
45}
46