linuxthreads/forward.c

   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 <dlfcn.h>
  21 #include "internals.h"
  22 #include <stdlib.h>
  23
  24 #include <shlib-compat.h>
  25
  26
  27 /* Pointers to the libc functions.  */
  28 struct pthread_functions __libc_pthread_functions attribute_hidden;
  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 #if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_1)
  47 FORWARD (__pthread_attr_init_2_0, (pthread_attr_t *attr), (attr), 0)
  48 compat_symbol (libc, __pthread_attr_init_2_0, pthread_attr_init, GLIBC_2_0);
  49 #endif
  50
  51 FORWARD (__pthread_attr_init_2_1, (pthread_attr_t *attr), (attr), 0)
  52 versioned_symbol (libc, __pthread_attr_init_2_1, pthread_attr_init, GLIBC_2_1);
  53
  54 FORWARD (pthread_attr_getdetachstate,
  55          (const pthread_attr_t *attr, int *detachstate), (attr, detachstate),
  56          0)
  57 FORWARD (pthread_attr_setdetachstate, (pthread_attr_t *attr, int detachstate),
  58          (attr, detachstate), 0)
  59
  60 FORWARD (pthread_attr_getinheritsched,
  61          (const pthread_attr_t *attr, int *inherit), (attr, inherit), 0)
  62 FORWARD (pthread_attr_setinheritsched, (pthread_attr_t *attr, int inherit),
  63          (attr, inherit), 0)
  64
  65 FORWARD (pthread_attr_getschedparam,
  66          (const pthread_attr_t *attr, struct sched_param *param),
  67          (attr, param), 0)
  68 FORWARD (pthread_attr_setschedparam,
  69          (pthread_attr_t *attr, const struct sched_param *param),
  70          (attr, param), 0)
  71
  72 FORWARD (pthread_attr_getschedpolicy,
  73          (const pthread_attr_t *attr, int *policy), (attr, policy), 0)
  74 FORWARD (pthread_attr_setschedpolicy, (pthread_attr_t *attr, int policy),
  75          (attr, policy), 0)
  76
  77 FORWARD (pthread_attr_getscope,
  78          (const pthread_attr_t *attr, int *scope), (attr, scope), 0)
  79 FORWARD (pthread_attr_setscope, (pthread_attr_t *attr, int scope),
  80          (attr, scope), 0)
  81
  82
  83 FORWARD (pthread_condattr_destroy, (pthread_condattr_t *attr), (attr), 0)
  84 FORWARD (pthread_condattr_init, (pthread_condattr_t *attr), (attr), 0)
  85
  86
  87 FORWARD (__pthread_cond_broadcast, (pthread_cond_t *cond), (cond), 0)
  88 #if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
  89 strong_alias (__pthread_cond_broadcast, __pthread_cond_broadcast_2_0)
  90 compat_symbol (libc, __pthread_cond_broadcast_2_0, pthread_cond_broadcast,
  91                GLIBC_2_0);
  92 #endif
  93 versioned_symbol (libc, __pthread_cond_broadcast, pthread_cond_broadcast,
  94                   GLIBC_2_3_2);
  95
  96 FORWARD (__pthread_cond_destroy, (pthread_cond_t *cond), (cond), 0)
  97 #if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
  98 strong_alias (__pthread_cond_destroy, __pthread_cond_destroy_2_0)
  99 compat_symbol (libc, __pthread_cond_destroy_2_0, pthread_cond_destroy,
 100                GLIBC_2_0);
 101 #endif
 102 versioned_symbol (libc, __pthread_cond_destroy, pthread_cond_destroy,
 103                   GLIBC_2_3_2);
 104
 105 FORWARD (__pthread_cond_init,
 106          (pthread_cond_t *cond, const pthread_condattr_t *cond_attr),
 107          (cond, cond_attr), 0)
 108 #if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
 109 strong_alias (__pthread_cond_init, __pthread_cond_init_2_0)
 110 compat_symbol (libc, __pthread_cond_init_2_0, pthread_cond_init, GLIBC_2_0);
 111 #endif
 112 versioned_symbol (libc, __pthread_cond_init, pthread_cond_init, GLIBC_2_3_2);
 113
 114 FORWARD (__pthread_cond_signal, (pthread_cond_t *cond), (cond), 0)
 115 #if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
 116 strong_alias (__pthread_cond_signal, __pthread_cond_signal_2_0)
 117 compat_symbol (libc, __pthread_cond_signal_2_0, pthread_cond_signal,
 118                GLIBC_2_0);
 119 #endif
 120 versioned_symbol (libc, __pthread_cond_signal, pthread_cond_signal,
 121                   GLIBC_2_3_2);
 122
 123 FORWARD (__pthread_cond_wait, (pthread_cond_t *cond, pthread_mutex_t *mutex),
 124          (cond, mutex), 0)
 125 #if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
 126 strong_alias (__pthread_cond_wait, __pthread_cond_wait_2_0)
 127 compat_symbol (libc, __pthread_cond_wait_2_0, pthread_cond_wait, GLIBC_2_0);
 128 #endif
 129 versioned_symbol (libc, __pthread_cond_wait, pthread_cond_wait, GLIBC_2_3_2);
 130
 131 FORWARD (__pthread_cond_timedwait,
 132          (pthread_cond_t *cond, pthread_mutex_t *mutex,
 133           const struct timespec *abstime), (cond, mutex, abstime), 0)
 134 #if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
 135 strong_alias (__pthread_cond_timedwait, __pthread_cond_timedwait_2_0)
 136 compat_symbol (libc, __pthread_cond_timedwait_2_0, pthread_cond_timedwait, GLIBC_2_0);
 137 #endif
 138 versioned_symbol (libc, __pthread_cond_timedwait, pthread_cond_timedwait, GLIBC_2_3_2);
 139
 140
 141 FORWARD (pthread_equal, (pthread_t thread1, pthread_t thread2),
 142          (thread1, thread2), 1)
 143
 144
 145 /* Use an alias to avoid warning, as pthread_exit is declared noreturn.  */
 146 FORWARD2 (__pthread_exit, void, (void *retval), (retval), exit (EXIT_SUCCESS))
 147 strong_alias (__pthread_exit, pthread_exit);
 148
 149
 150 FORWARD (pthread_getschedparam,
 151          (pthread_t target_thread, int *policy, struct sched_param *param),
 152          (target_thread, policy, param), 0)
 153 FORWARD (pthread_setschedparam,
 154          (pthread_t target_thread, int policy,
 155           const struct sched_param *param), (target_thread, policy, param), 0)
 156
 157
 158 FORWARD (pthread_mutex_destroy, (pthread_mutex_t *mutex), (mutex), 0)
 159
 160 FORWARD (pthread_mutex_init,
 161          (pthread_mutex_t *mutex, const pthread_mutexattr_t *mutexattr),
 162          (mutex, mutexattr), 0)
 163
 164 FORWARD (pthread_mutex_lock, (pthread_mutex_t *mutex), (mutex), 0)
 165
 166 FORWARD (pthread_mutex_unlock, (pthread_mutex_t *mutex), (mutex), 0)
 167
 168
 169 FORWARD2 (pthread_self, pthread_t, (void), (), return 0)
 170
 171
 172 FORWARD (pthread_setcancelstate, (int state, int *oldstate), (state, oldstate),
 173          0)
 174
 175 FORWARD (pthread_setcanceltype, (int type, int *oldtype), (type, oldtype), 0)
 176
 177 FORWARD2 (_pthread_cleanup_push, void, (struct _pthread_cleanup_buffer * buffer, void (*routine)(void *), void * arg), (buffer, routine, arg), return)
 178
 179 FORWARD2 (_pthread_cleanup_pop, void, (struct _pthread_cleanup_buffer * buffer, int execute), (buffer, execute), return)