1 /* Copyright (C) 2002, 2003 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. 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 <http://www.gnu.org/licenses/>. */ 18 19 #include <features.h> 20 #include <stdlib.h> 21 #include <dlfcn.h> 22 23 /* psm: keep this before internals.h */ 24 25 #include "internals.h" 26 27 /* Pointers to the libc functions. */ 28 struct pthread_functions __libc_pthread_functions; 29 30 31 # define FORWARD2(name, rettype, decl, params, defaction) \ 32 rettype \ 33 name decl \ 34 { \ 35 if (__libc_pthread_functions.ptr_##name == NULL) \ 36 defaction; \ 37 \ 38 return __libc_pthread_functions.ptr_##name params; \ 39 } 40 41 # define FORWARD(name, decl, params, defretval) \ 42 FORWARD2 (name, int, decl, params, return defretval) 43 44 FORWARD (pthread_attr_destroy, (pthread_attr_t *attr), (attr), 0) 45 46 FORWARD (pthread_attr_init, (pthread_attr_t *attr), (attr), 0) 47 48 FORWARD (pthread_attr_getdetachstate, 49 (const pthread_attr_t *attr, int *detachstate), (attr, detachstate), 50 0) 51 FORWARD (pthread_attr_setdetachstate, (pthread_attr_t *attr, int detachstate), 52 (attr, detachstate), 0) 53 54 FORWARD (pthread_attr_getinheritsched, 55 (const pthread_attr_t *attr, int *inherit), (attr, inherit), 0) 56 FORWARD (pthread_attr_setinheritsched, (pthread_attr_t *attr, int inherit), 57 (attr, inherit), 0) 58 59 FORWARD (pthread_attr_getschedparam, 60 (const pthread_attr_t *attr, struct sched_param *param), 61 (attr, param), 0) 62 FORWARD (pthread_attr_setschedparam, 63 (pthread_attr_t *attr, const struct sched_param *param), 64 (attr, param), 0) 65 66 FORWARD (pthread_attr_getschedpolicy, 67 (const pthread_attr_t *attr, int *policy), (attr, policy), 0) 68 FORWARD (pthread_attr_setschedpolicy, (pthread_attr_t *attr, int policy), 69 (attr, policy), 0) 70 71 FORWARD (pthread_attr_getscope, 72 (const pthread_attr_t *attr, int *scope), (attr, scope), 0) 73 FORWARD (pthread_attr_setscope, (pthread_attr_t *attr, int scope), 74 (attr, scope), 0) 75 76 77 FORWARD (pthread_condattr_destroy, (pthread_condattr_t *attr), (attr), 0) 78 FORWARD (pthread_condattr_init, (pthread_condattr_t *attr), (attr), 0) 79 80 81 FORWARD (pthread_cond_broadcast, (pthread_cond_t *cond), (cond), 0) 82 83 FORWARD (pthread_cond_destroy, (pthread_cond_t *cond), (cond), 0) 84 85 FORWARD (pthread_cond_init, 86 (pthread_cond_t *cond, const pthread_condattr_t *cond_attr), 87 (cond, cond_attr), 0) 88 89 FORWARD (pthread_cond_signal, (pthread_cond_t *cond), (cond), 0) 90 91 FORWARD (pthread_cond_wait, (pthread_cond_t *cond, pthread_mutex_t *mutex), 92 (cond, mutex), 0) 93 94 FORWARD (pthread_cond_timedwait, 95 (pthread_cond_t *cond, pthread_mutex_t *mutex, 96 const struct timespec *abstime), (cond, mutex, abstime), 0) 97 98 99 FORWARD (pthread_equal, (pthread_t thread1, pthread_t thread2), 100 (thread1, thread2), 1) 101 102 103 /* Use an alias to avoid warning, as pthread_exit is declared noreturn. */ 104 FORWARD2 (__pthread_exit, void, (void *retval), (retval), exit (EXIT_SUCCESS)) 105 strong_alias (__pthread_exit, pthread_exit) 106 107 108 FORWARD (pthread_getschedparam, 109 (pthread_t target_thread, int *policy, struct sched_param *param), 110 (target_thread, policy, param), 0) 111 FORWARD (pthread_setschedparam, 112 (pthread_t target_thread, int policy, 113 const struct sched_param *param), (target_thread, policy, param), 0) 114 115 116 FORWARD (pthread_mutex_destroy, (pthread_mutex_t *mutex), (mutex), 0) 117 118 FORWARD (pthread_mutex_init, 119 (pthread_mutex_t *mutex, const pthread_mutexattr_t *mutexattr), 120 (mutex, mutexattr), 0) 121 strong_alias(pthread_mutex_init, __pthread_mutex_init) 122 123 FORWARD (pthread_mutex_lock, (pthread_mutex_t *mutex), (mutex), 0) 124 strong_alias(pthread_mutex_lock, __pthread_mutex_lock) 125 126 FORWARD (pthread_mutex_trylock, (pthread_mutex_t *mutex), (mutex), 0) 127 strong_alias(pthread_mutex_trylock, __pthread_mutex_trylock) 128 129 FORWARD (pthread_mutex_unlock, (pthread_mutex_t *mutex), (mutex), 0) 130 strong_alias(pthread_mutex_unlock, __pthread_mutex_unlock) 131 132 FORWARD2 (pthread_self, pthread_t, (void), (), return 0) 133 134 135 FORWARD (pthread_setcancelstate, (int state, int *oldstate), (state, oldstate), 136 0) 137 138 FORWARD (pthread_setcanceltype, (int type, int *oldtype), (type, oldtype), 0) 139 140 FORWARD2 (_pthread_cleanup_push, void, (struct _pthread_cleanup_buffer * buffer, void (*routine)(void *), void * arg), (buffer, routine, arg), return) 141 FORWARD2 (_pthread_cleanup_push_defer, void, (struct _pthread_cleanup_buffer * buffer, void (*routine)(void *), void * arg), (buffer, routine, arg), return) 142 143 FORWARD2 (_pthread_cleanup_pop, void, (struct _pthread_cleanup_buffer * buffer, int execute), (buffer, execute), return) 144 FORWARD2 (_pthread_cleanup_pop_restore, void, (struct _pthread_cleanup_buffer * buffer, int execute), (buffer, execute), return) 145