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, write to the Free 17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 18 02111-1307 USA. */ 19 20 #include <features.h> 21 #include <stdlib.h> 22 #include <dlfcn.h> 23 24 /* psm: keep this before internals.h */ 25 26 #include "internals.h" 27 28 /* Pointers to the libc functions. */ 29 struct pthread_functions __libc_pthread_functions attribute_hidden; 30 31 32 # define FORWARD2(name, rettype, decl, params, defaction) \ 33 rettype \ 34 name decl \ 35 { \ 36 if (__libc_pthread_functions.ptr_##name == NULL) \ 37 defaction; \ 38 \ 39 return __libc_pthread_functions.ptr_##name params; \ 40 } 41 42 # define FORWARD(name, decl, params, defretval) \ 43 FORWARD2 (name, int, decl, params, return defretval) 44 45 FORWARD (pthread_attr_destroy, (pthread_attr_t *attr), (attr), 0) 46 47 FORWARD (pthread_attr_init, (pthread_attr_t *attr), (attr), 0) 48 49 FORWARD (pthread_attr_getdetachstate, 50 (const pthread_attr_t *attr, int *detachstate), (attr, detachstate), 51 0) 52 FORWARD (pthread_attr_setdetachstate, (pthread_attr_t *attr, int detachstate), 53 (attr, detachstate), 0) 54 55 FORWARD (pthread_attr_getinheritsched, 56 (const pthread_attr_t *attr, int *inherit), (attr, inherit), 0) 57 FORWARD (pthread_attr_setinheritsched, (pthread_attr_t *attr, int inherit), 58 (attr, inherit), 0) 59 60 FORWARD (pthread_attr_getschedparam, 61 (const pthread_attr_t *attr, struct sched_param *param), 62 (attr, param), 0) 63 FORWARD (pthread_attr_setschedparam, 64 (pthread_attr_t *attr, const struct sched_param *param), 65 (attr, param), 0) 66 67 FORWARD (pthread_attr_getschedpolicy, 68 (const pthread_attr_t *attr, int *policy), (attr, policy), 0) 69 FORWARD (pthread_attr_setschedpolicy, (pthread_attr_t *attr, int policy), 70 (attr, policy), 0) 71 72 FORWARD (pthread_attr_getscope, 73 (const pthread_attr_t *attr, int *scope), (attr, scope), 0) 74 FORWARD (pthread_attr_setscope, (pthread_attr_t *attr, int scope), 75 (attr, scope), 0) 76 77 78 FORWARD (pthread_condattr_destroy, (pthread_condattr_t *attr), (attr), 0) 79 FORWARD (pthread_condattr_init, (pthread_condattr_t *attr), (attr), 0) 80 81 82 FORWARD (pthread_cond_broadcast, (pthread_cond_t *cond), (cond), 0) 83 84 FORWARD (pthread_cond_destroy, (pthread_cond_t *cond), (cond), 0) 85 86 FORWARD (pthread_cond_init, 87 (pthread_cond_t *cond, const pthread_condattr_t *cond_attr), 88 (cond, cond_attr), 0) 89 90 FORWARD (pthread_cond_signal, (pthread_cond_t *cond), (cond), 0) 91 92 FORWARD (pthread_cond_wait, (pthread_cond_t *cond, pthread_mutex_t *mutex), 93 (cond, mutex), 0) 94 95 FORWARD (pthread_cond_timedwait, 96 (pthread_cond_t *cond, pthread_mutex_t *mutex, 97 const struct timespec *abstime), (cond, mutex, abstime), 0) 98 99 100 FORWARD (pthread_equal, (pthread_t thread1, pthread_t thread2), 101 (thread1, thread2), 1) 102 103 104 /* Use an alias to avoid warning, as pthread_exit is declared noreturn. */ 105 FORWARD2 (__pthread_exit, void, (void *retval), (retval), exit (EXIT_SUCCESS)) 106 strong_alias (__pthread_exit, pthread_exit) 107 108 109 FORWARD (pthread_getschedparam, 110 (pthread_t target_thread, int *policy, struct sched_param *param), 111 (target_thread, policy, param), 0) 112 FORWARD (pthread_setschedparam, 113 (pthread_t target_thread, int policy, 114 const struct sched_param *param), (target_thread, policy, param), 0) 115 116 117 FORWARD (pthread_mutex_destroy, (pthread_mutex_t *mutex), (mutex), 0) 118 119 FORWARD (pthread_mutex_init, 120 (pthread_mutex_t *mutex, const pthread_mutexattr_t *mutexattr), 121 (mutex, mutexattr), 0) 122 strong_alias(pthread_mutex_init, __pthread_mutex_init) 123 124 FORWARD (pthread_mutex_lock, (pthread_mutex_t *mutex), (mutex), 0) 125 strong_alias(pthread_mutex_lock, __pthread_mutex_lock) 126 127 FORWARD (pthread_mutex_trylock, (pthread_mutex_t *mutex), (mutex), 0) 128 strong_alias(pthread_mutex_trylock, __pthread_mutex_trylock) 129 130 FORWARD (pthread_mutex_unlock, (pthread_mutex_t *mutex), (mutex), 0) 131 strong_alias(pthread_mutex_unlock, __pthread_mutex_unlock) 132 133 FORWARD2 (pthread_self, pthread_t, (void), (), return 0) 134 135 136 FORWARD (pthread_setcancelstate, (int state, int *oldstate), (state, oldstate), 137 0) 138 139 FORWARD (pthread_setcanceltype, (int type, int *oldtype), (type, oldtype), 0) 140 141 FORWARD2 (_pthread_cleanup_push, void, (struct _pthread_cleanup_buffer * buffer, void (*routine)(void *), void * arg), (buffer, routine, arg), return) 142 FORWARD2 (_pthread_cleanup_push_defer, void, (struct _pthread_cleanup_buffer * buffer, void (*routine)(void *), void * arg), (buffer, routine, arg), return) 143 144 FORWARD2 (_pthread_cleanup_pop, void, (struct _pthread_cleanup_buffer * buffer, int execute), (buffer, execute), return) 145 FORWARD2 (_pthread_cleanup_pop_restore, void, (struct _pthread_cleanup_buffer * buffer, int execute), (buffer, execute), return) 146