2 * Copyright (c) 2001 Daniel Eischen <deischen@FreeBSD.org>.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS''
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/lib/libc/gen/_pthread_stubs.c,v 1.5 2001/06/11 23:18:22 iedowse Exp $
33 * Weak symbols: All libc internal usage of these functions should
34 * use the weak symbol versions (_pthread_XXX). If libpthread is
35 * linked, it will override these functions with (non-weak) routines.
36 * The _pthread_XXX functions are provided solely for internal libc
37 * usage to avoid unwanted cancellation points and to differentiate
38 * between application locks and libc locks (threads holding the
39 * latter can't be allowed to exit/terminate).
43 __weak_reference(f, _ ## n); \
44 __weak_reference(f, n)
46 WR(__atfork, pthread_atfork);
47 WR(stub_zero, pthread_attr_destroy);
48 WR(stub_zero, pthread_attr_get_np);
49 WR(stub_zero, pthread_attr_getdetachstate);
50 WR(stub_zero, pthread_attr_getguardsize);
51 WR(stub_zero, pthread_attr_getinheritsched);
52 WR(stub_zero, pthread_attr_getschedparam);
53 WR(stub_zero, pthread_attr_getschedpolicy);
54 WR(stub_zero, pthread_attr_getscope);
55 WR(stub_zero, pthread_attr_getstack);
56 WR(stub_zero, pthread_attr_getstackaddr);
57 WR(stub_zero, pthread_attr_getstacksize);
58 WR(stub_zero, pthread_attr_init);
59 WR(stub_zero, pthread_attr_setcreatesuspend_np);
60 WR(stub_zero, pthread_attr_setdetachstate);
61 WR(stub_zero, pthread_attr_setguardsize);
62 WR(stub_zero, pthread_attr_setinheritsched);
63 WR(stub_zero, pthread_attr_setschedparam);
64 WR(stub_zero, pthread_attr_setschedpolicy);
65 WR(stub_zero, pthread_attr_setscope);
66 WR(stub_zero, pthread_attr_setstack);
67 WR(stub_zero, pthread_attr_setstackaddr);
68 WR(stub_zero, pthread_attr_setstacksize);
69 WR(stub_zero, pthread_barrier_destroy);
70 WR(stub_zero, pthread_barrier_init);
71 WR(stub_zero, pthread_barrier_wait);
72 WR(stub_zero, pthread_barrierattr_destroy);
73 WR(stub_zero, pthread_barrierattr_getpshared);
74 WR(stub_zero, pthread_barrierattr_init);
75 WR(stub_zero, pthread_barrierattr_setpshared);
76 WR(stub_zero, pthread_cancel);
77 WR(stub_zero, pthread_cleanup_pop);
78 WR(stub_zero, pthread_cleanup_push);
79 WR(stub_zero, pthread_cond_broadcast);
80 WR(stub_zero, pthread_cond_destroy);
81 WR(stub_zero, pthread_cond_init);
82 WR(stub_zero, pthread_cond_signal);
83 WR(stub_zero, pthread_cond_timedwait);
84 WR(stub_zero, pthread_cond_wait);
85 WR(stub_zero, pthread_condattr_destroy);
86 WR(stub_zero, pthread_condattr_getclock);
87 WR(stub_zero, pthread_condattr_getpshared);
88 WR(stub_zero, pthread_condattr_init);
89 WR(stub_zero, pthread_condattr_setclock);
90 WR(stub_zero, pthread_condattr_setpshared);
91 WR(stub_zero, pthread_detach);
92 WR(stub_true, pthread_equal);
93 WR(stub_exit, pthread_exit);
94 WR(stub_zero, pthread_getconcurrency);
95 WR(stub_zero, pthread_getprio);
96 WR(stub_zero, pthread_getschedparam);
97 WR(stub_null, pthread_getspecific);
98 WR(stub_empty, pthread_init_early);
99 WR(stub_zero, pthread_join);
100 WR(stub_zero, pthread_key_create);
101 WR(stub_zero, pthread_key_delete);
102 WR(stub_zero, pthread_kill);
103 WR(stub_main, pthread_main_np);
104 WR(stub_zero, pthread_multi_np);
105 WR(stub_zero, pthread_mutex_destroy);
106 WR(stub_zero, pthread_mutex_getprioceiling);
107 WR(stub_zero, pthread_mutex_init);
108 WR(stub_zero, pthread_mutex_lock);
109 WR(stub_zero, pthread_mutex_setprioceiling);
110 WR(stub_zero, pthread_mutex_timedlock);
111 WR(stub_zero, pthread_mutex_trylock);
112 WR(stub_zero, pthread_mutex_unlock);
113 WR(stub_zero, pthread_mutexattr_destroy);
114 WR(stub_zero, pthread_mutexattr_getkind_np);
115 WR(stub_zero, pthread_mutexattr_getprioceiling);
116 WR(stub_zero, pthread_mutexattr_getprotocol);
117 WR(stub_zero, pthread_mutexattr_getpshared);
118 WR(stub_zero, pthread_mutexattr_gettype);
119 WR(stub_zero, pthread_mutexattr_init);
120 WR(stub_zero, pthread_mutexattr_setkind_np);
121 WR(stub_zero, pthread_mutexattr_setprioceiling);
122 WR(stub_zero, pthread_mutexattr_setprotocol);
123 WR(stub_zero, pthread_mutexattr_setpshared);
124 WR(stub_zero, pthread_mutexattr_settype);
125 WR(stub_once, pthread_once);
126 WR(stub_zero, pthread_resume_all_np);
127 WR(stub_zero, pthread_resume_np);
128 WR(stub_zero, pthread_rwlock_destroy);
129 WR(stub_zero, pthread_rwlock_init);
130 WR(stub_zero, pthread_rwlock_rdlock);
131 WR(stub_zero, pthread_rwlock_timedrdlock);
132 WR(stub_zero, pthread_rwlock_timedwrlock);
133 WR(stub_zero, pthread_rwlock_tryrdlock);
134 WR(stub_zero, pthread_rwlock_trywrlock);
135 WR(stub_zero, pthread_rwlock_unlock);
136 WR(stub_zero, pthread_rwlock_wrlock);
137 WR(stub_zero, pthread_rwlockattr_destroy);
138 WR(stub_zero, pthread_rwlockattr_getpshared);
139 WR(stub_zero, pthread_rwlockattr_init);
140 WR(stub_zero, pthread_rwlockattr_setpshared);
141 WR(stub_self, pthread_self);
142 WR(stub_zero, pthread_set_name_np);
143 WR(stub_zero, pthread_setcancelstate);
144 WR(stub_zero, pthread_setcanceltype);
145 WR(stub_zero, pthread_setconcurrency);
146 WR(stub_zero, pthread_setprio);
147 WR(stub_zero, pthread_setschedparam);
148 WR(stub_zero, pthread_setspecific);
149 WR(stub_zero, pthread_sigmask);
150 WR(stub_zero, pthread_single_np);
151 WR(stub_zero, pthread_spin_destroy);
152 WR(stub_zero, pthread_spin_init);
153 WR(stub_zero, pthread_spin_lock);
154 WR(stub_zero, pthread_spin_trylock);
155 WR(stub_zero, pthread_spin_unlock);
156 WR(stub_zero, pthread_suspend_all_np);
157 WR(stub_zero, pthread_suspend_np);
158 WR(stub_zero, pthread_switch_add_np);
159 WR(stub_zero, pthread_switch_delete_np);
160 WR(stub_zero, pthread_testcancel);
161 WR(stub_zero, pthread_timedjoin_np);
162 WR(stub_zero, pthread_yield);
163 WR(stub_zero, sched_yield);
164 WR(stub_zero, sem_close);
165 WR(stub_zero, sem_destroy);
166 WR(stub_zero, sem_getvalue);
167 WR(stub_zero, sem_init);
168 WR(stub_zero, sem_open);
169 WR(stub_zero, sem_post);
170 WR(stub_zero, sem_trywait);
171 WR(stub_zero, sem_timedwait);
172 WR(stub_zero, sem_unlink);
173 WR(stub_zero, sem_wait);
183 stub_once(pthread_once_t *o, void (*r)(void))
185 if (o->state != PTHREAD_DONE_INIT) {
187 o->state = PTHREAD_DONE_INIT;
202 static struct {} main_thread;
204 return (&main_thread);
231 * If libpthread is loaded, make sure it is initialised before
232 * other libraries call pthread functions
234 void _pthread_init(void) __constructor(101);
235 void _pthread_init_early(void);
239 _pthread_init_early();
242 extern void (*cb_prepare)(void);
243 extern void (*cb_parent)(void);
244 extern void (*cb_child)(void);
245 extern int __isthreaded;
248 __atfork(void (*prepare)(void), void (*parent)(void),
253 cb_prepare = prepare;