/* Copyright (C) 2002-2018 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, see

   <http://www.gnu.org/licenses/>.  */

#include <dlfcn.h>

#include <pthreadP.h>

#include <signal.h>

#include <stdlib.h>

#include <shlib-compat.h>

#include <atomic.h>

#include <safe-fatal.h>

/* Pointers to the libc functions.  */

struct pthread_functions __libc_pthread_functions attribute_hidden;

int __libc_pthread_functions_init attribute_hidden;

#define FORWARD2(name, rettype, decl, params, defaction) \

rettype									      \

name decl								      \

{									      \

  if (!__libc_pthread_functions_init)					      \

    defaction;								      \

									      \

  return PTHFCT_CALL (ptr_##name, params);				      \

}

/* Same as FORWARD2, only without return.  */

#define FORWARD_NORETURN(name, rettype, decl, params, defaction) \

rettype									      \

name decl								      \

{									      \

  if (!__libc_pthread_functions_init)					      \

    defaction;								      \

									      \

  PTHFCT_CALL (ptr_##name, params);					      \

}

#define FORWARD(name, decl, params, defretval) \

  FORWARD2 (name, int, decl, params, return defretval)

FORWARD (pthread_attr_destroy, (pthread_attr_t *attr), (attr), 0)

#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_1)

FORWARD (__pthread_attr_init_2_0, (pthread_attr_t *attr), (attr), 0)

compat_symbol (libc, __pthread_attr_init_2_0, pthread_attr_init, GLIBC_2_0);

#endif

FORWARD (__pthread_attr_init_2_1, (pthread_attr_t *attr), (attr), 0)

versioned_symbol (libc, __pthread_attr_init_2_1, pthread_attr_init, 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)

#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)

FORWARD2 (__pthread_cond_broadcast_2_0, int attribute_compat_text_section,

	  (pthread_cond_2_0_t *cond), (cond), return 0)

compat_symbol (libc, __pthread_cond_broadcast_2_0, pthread_cond_broadcast,

	       GLIBC_2_0);

#endif

FORWARD (__pthread_cond_broadcast, (pthread_cond_t *cond), (cond), 0)

versioned_symbol (libc, __pthread_cond_broadcast, pthread_cond_broadcast,

		  GLIBC_2_3_2);

#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)

FORWARD2 (__pthread_cond_destroy_2_0, int attribute_compat_text_section,

	  (pthread_cond_2_0_t *cond), (cond), return 0)

compat_symbol (libc, __pthread_cond_destroy_2_0, pthread_cond_destroy,

	       GLIBC_2_0);

#endif

FORWARD (__pthread_cond_destroy, (pthread_cond_t *cond), (cond), 0)

versioned_symbol (libc, __pthread_cond_destroy, pthread_cond_destroy,

		  GLIBC_2_3_2);

#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)

FORWARD2 (__pthread_cond_init_2_0, int attribute_compat_text_section,

	  (pthread_cond_2_0_t *cond, const pthread_condattr_t *cond_attr),

	  (cond, cond_attr), return 0)

compat_symbol (libc, __pthread_cond_init_2_0, pthread_cond_init, GLIBC_2_0);

#endif

FORWARD (__pthread_cond_init,

	 (pthread_cond_t *cond, const pthread_condattr_t *cond_attr),

	 (cond, cond_attr), 0)

versioned_symbol (libc, __pthread_cond_init, pthread_cond_init, GLIBC_2_3_2);

#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)

FORWARD2 (__pthread_cond_signal_2_0, int attribute_compat_text_section,

	  (pthread_cond_2_0_t *cond), (cond), return 0)

compat_symbol (libc, __pthread_cond_signal_2_0, pthread_cond_signal,

	       GLIBC_2_0);

#endif

FORWARD (__pthread_cond_signal, (pthread_cond_t *cond), (cond), 0)

versioned_symbol (libc, __pthread_cond_signal, pthread_cond_signal,

		  GLIBC_2_3_2);

#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)

FORWARD2 (__pthread_cond_wait_2_0, int attribute_compat_text_section,

	  (pthread_cond_2_0_t *cond, pthread_mutex_t *mutex), (cond, mutex),

	  return 0)

compat_symbol (libc, __pthread_cond_wait_2_0, pthread_cond_wait,

	       GLIBC_2_0);

#endif

FORWARD (__pthread_cond_wait, (pthread_cond_t *cond, pthread_mutex_t *mutex),

	 (cond, mutex), 0)

versioned_symbol (libc, __pthread_cond_wait, pthread_cond_wait,

		  GLIBC_2_3_2);

#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)

FORWARD2 (__pthread_cond_timedwait_2_0, int attribute_compat_text_section,

	  (pthread_cond_2_0_t *cond, pthread_mutex_t *mutex,

	   const struct timespec *abstime), (cond, mutex, abstime),

	  return 0)

compat_symbol (libc, __pthread_cond_timedwait_2_0, pthread_cond_timedwait,

	       GLIBC_2_0);

#endif

FORWARD (__pthread_cond_timedwait,

	 (pthread_cond_t *cond, pthread_mutex_t *mutex,

	  const struct timespec *abstime), (cond, mutex, abstime), 0)

versioned_symbol (libc, __pthread_cond_timedwait, pthread_cond_timedwait,

		  GLIBC_2_3_2);

FORWARD (pthread_equal, (pthread_t thread1, pthread_t thread2),

	 (thread1, thread2), 1)

FORWARD_NORETURN (__pthread_exit, void, (void *retval), (retval),

		  exit (EXIT_SUCCESS))

strong_alias (__pthread_exit, pthread_exit);

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)

FORWARD (__pthread_setcancelstate, (int state, int *oldstate),

	 (state, oldstate), 0)

strong_alias (__pthread_setcancelstate, pthread_setcancelstate)

FORWARD (pthread_setcanceltype, (int type, int *oldtype), (type, oldtype), 0)

FORWARD_NORETURN (__pthread_unwind,

                  void attribute_hidden __attribute ((noreturn))

                  __cleanup_fct_attribute attribute_compat_text_section,

                  (__pthread_unwind_buf_t *buf), (buf),

                  __safe_fatal ())