2 * SPDX-License-Identifier: BSD-3-Clause
5 * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #include <sys/cdefs.h>
34 #include "namespace.h"
39 #include "un-namespace.h"
41 #include "thr_private.h"
43 #undef pthread_cleanup_push
44 #undef pthread_cleanup_pop
46 /* old binary compatible interfaces */
47 __weak_reference(_thr_cleanup_pop, pthread_cleanup_pop);
48 __weak_reference(_thr_cleanup_pop, _pthread_cleanup_pop);
49 __weak_reference(_thr_cleanup_push, pthread_cleanup_push);
50 __weak_reference(_thr_cleanup_push, _pthread_cleanup_push);
52 /* help static linking when libc symbols have preference */
53 __weak_reference(__thr_cleanup_push_imp, __pthread_cleanup_push_imp);
54 __weak_reference(__thr_cleanup_pop_imp, __pthread_cleanup_pop_imp);
57 __thr_cleanup_push_imp(void (*routine)(void *), void *arg,
58 struct _pthread_cleanup_info *info)
60 struct pthread *curthread = _get_curthread();
61 struct pthread_cleanup *newbuf;
63 newbuf = (void *)info;
64 newbuf->routine = routine;
65 newbuf->routine_arg = arg;
67 newbuf->prev = curthread->cleanup;
68 curthread->cleanup = newbuf;
72 __thr_cleanup_pop_imp(int execute)
74 struct pthread *curthread = _get_curthread();
75 struct pthread_cleanup *old;
77 if ((old = curthread->cleanup) != NULL) {
78 curthread->cleanup = old->prev;
80 old->routine(old->routine_arg);
87 _thr_cleanup_push(void (*routine)(void *), void *arg)
89 struct pthread *curthread = _get_curthread();
90 struct pthread_cleanup *newbuf;
91 #ifdef _PTHREAD_FORCED_UNWIND
92 curthread->unwind_disabled = 1;
94 if ((newbuf = (struct pthread_cleanup *)
95 malloc(sizeof(struct pthread_cleanup))) != NULL) {
96 newbuf->routine = routine;
97 newbuf->routine_arg = arg;
99 newbuf->prev = curthread->cleanup;
100 curthread->cleanup = newbuf;
105 _thr_cleanup_pop(int execute)
107 __pthread_cleanup_pop_imp(execute);