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/* Copyright (C) 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <dlfcn.h>
#include <pthread.h>
#include <stdlib.h>
#include <shlib-compat.h>
#include <atomic.h>
#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
static void *libpthread_handle;
static void
test_loaded (void)
{
/* While we are getting the result set the handle to (void *) -1 to
avoid recursive calls. */
atomic_compare_and_exchange_acq (&libpthread_handle, (void *) -1l, NULL);
void *h = __libc_dlopen_mode ("libpthread.so.0", RTLD_LAZY | RTLD_NOLOAD);
libpthread_handle = h ?: (void *) -1l;
}
#define FORWARD3(name, rettype, decl, params, defaction, version) \
rettype \
__noexport_##name decl \
{ \
if (libpthread_handle == NULL) \
test_loaded (); \
\
if (libpthread_handle == (void *) -1l) \
defaction; \
\
static __typeof (name) *p; \
p = __libc_dlsym (libpthread_handle, #name); \
\
return p params; \
} \
compat_symbol (libc, __noexport_##name, name, version)
#define FORWARD2(name, decl, params, defretval, version) \
FORWARD3 (name, int, decl, params, return defretval, version)
#define FORWARD(name, decl, params, defretval) \
FORWARD2 (name, decl, params, defretval, GLIBC_2_0)
FORWARD (pthread_attr_destroy, (pthread_attr_t *attr), (attr), 0);
FORWARD2 (pthread_attr_init, (pthread_attr_t *attr), (attr), 0, GLIBC_2_1);
FORWARD (pthread_attr_getdetachstate,
(const pthread_attr_t *attr, int *detachstate), (attr, detachstate),
0);
FORWARD (pthread_attr_setdetachstate, (pthread_attr_t *attr, int detachstate),
(attr, detachstate), 0);
FORWARD (pthread_attr_getinheritsched,
(const pthread_attr_t *attr, int *inherit), (attr, inherit), 0);
FORWARD (pthread_attr_setinheritsched, (pthread_attr_t *attr, int inherit),
(attr, inherit), 0);
FORWARD (pthread_attr_getschedparam,
(const pthread_attr_t *attr, struct sched_param *param),
(attr, param), 0);
FORWARD (pthread_attr_setschedparam,
(pthread_attr_t *attr, const struct sched_param *param),
(attr, param), 0);
FORWARD (pthread_attr_getschedpolicy,
(const pthread_attr_t *attr, int *policy), (attr, policy), 0);
FORWARD (pthread_attr_setschedpolicy, (pthread_attr_t *attr, int policy),
(attr, policy), 0);
FORWARD (pthread_attr_getscope,
(const pthread_attr_t *attr, int *scope), (attr, scope), 0);
FORWARD (pthread_attr_setscope, (pthread_attr_t *attr, int scope),
(attr, scope), 0);
FORWARD (pthread_condattr_destroy, (pthread_condattr_t *attr), (attr), 0);
FORWARD (pthread_condattr_init, (pthread_condattr_t *attr), (attr), 0);
FORWARD (pthread_cond_broadcast, (pthread_cond_t *cond), (cond), 0);
FORWARD (pthread_cond_destroy, (pthread_cond_t *cond), (cond), 0);
FORWARD (pthread_cond_init,
(pthread_cond_t *cond, const pthread_condattr_t *cond_attr),
(cond, cond_attr), 0);
FORWARD (pthread_cond_signal, (pthread_cond_t *cond), (cond), 0);
FORWARD (pthread_cond_wait, (pthread_cond_t *cond, pthread_mutex_t *mutex),
(cond, mutex), 0);
FORWARD (pthread_equal, (pthread_t thread1, pthread_t thread2),
(thread1, thread2), 1);
FORWARD3 (pthread_exit, void, (void *retval), (retval), exit (EXIT_SUCCESS),
GLIBC_2_0);
FORWARD (pthread_getschedparam,
(pthread_t target_thread, int *policy, struct sched_param *param),
(target_thread, policy, param), 0);
FORWARD (pthread_setschedparam,
(pthread_t target_thread, int policy,
const struct sched_param *param), (target_thread, policy, param), 0);
FORWARD (pthread_mutex_destroy, (pthread_mutex_t *mutex), (mutex), 0);
FORWARD (pthread_mutex_init,
(pthread_mutex_t *mutex, const pthread_mutexattr_t *mutexattr),
(mutex, mutexattr), 0);
FORWARD (pthread_mutex_lock, (pthread_mutex_t *mutex), (mutex), 0);
FORWARD (pthread_mutex_unlock, (pthread_mutex_t *mutex), (mutex), 0);
FORWARD3 (pthread_self, pthread_t, (void), (), return 0, GLIBC_2_0);
FORWARD (pthread_setcancelstate, (int state, int *oldstate), (state, oldstate),
0);
FORWARD (pthread_setcanceltype, (int type, int *oldtype), (type, oldtype), 0);
#endif
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