hppa: Remove unrequired nptl headers

Now that both pthread_mutex_t and pthread_rwlock_t static initializer
are parametrized in their own headers HPPA pthread.h is identical to
generic nptl one.

Checked on hppa-linux-gnu.

Change-Id: I236cfceb5656cfcce42c9e367a4f6803e2abd88b

1 files changed, 0 insertions, 1171 deletions

diff --git a/sysdeps/unix/sysv/linux/hppa/pthread.h b/sysdeps/unix/sysv/linux/hppa/pthread.h
deleted file mode 100644
index 61e5426..0000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread.h
+++ /dev/null
@@ -1,1171 +0,0 @@
-/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   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
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef _PTHREAD_H
-#define _PTHREAD_H	1
-
-#include <features.h>
-#include <sched.h>
-#include <time.h>
-
-#include <bits/pthreadtypes.h>
-#include <bits/setjmp.h>
-#include <bits/wordsize.h>
-#include <bits/types/struct_timespec.h>
-
-
-/* Detach state.  */
-enum
-{
-  PTHREAD_CREATE_JOINABLE,
-#define PTHREAD_CREATE_JOINABLE	PTHREAD_CREATE_JOINABLE
-  PTHREAD_CREATE_DETACHED
-#define PTHREAD_CREATE_DETACHED	PTHREAD_CREATE_DETACHED
-};
-
-
-/* Mutex types.  */
-enum
-{
-  PTHREAD_MUTEX_TIMED_NP,
-  PTHREAD_MUTEX_RECURSIVE_NP,
-  PTHREAD_MUTEX_ERRORCHECK_NP,
-  PTHREAD_MUTEX_ADAPTIVE_NP
-#if defined __USE_UNIX98 || defined __USE_XOPEN2K8
-  ,
-  PTHREAD_MUTEX_NORMAL = PTHREAD_MUTEX_TIMED_NP,
-  PTHREAD_MUTEX_RECURSIVE = PTHREAD_MUTEX_RECURSIVE_NP,
-  PTHREAD_MUTEX_ERRORCHECK = PTHREAD_MUTEX_ERRORCHECK_NP,
-  PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL
-#endif
-#ifdef __USE_GNU
-  /* For compatibility.  */
-  , PTHREAD_MUTEX_FAST_NP = PTHREAD_MUTEX_TIMED_NP
-#endif
-};
-
-
-#ifdef __USE_XOPEN2K
-/* Robust mutex or not flags.  */
-enum
-{
-  PTHREAD_MUTEX_STALLED,
-  PTHREAD_MUTEX_STALLED_NP = PTHREAD_MUTEX_STALLED,
-  PTHREAD_MUTEX_ROBUST,
-  PTHREAD_MUTEX_ROBUST_NP = PTHREAD_MUTEX_ROBUST
-};
-#endif
-
-
-#if defined __USE_POSIX199506 || defined __USE_UNIX98
-/* Mutex protocols.  */
-enum
-{
-  PTHREAD_PRIO_NONE,
-  PTHREAD_PRIO_INHERIT,
-  PTHREAD_PRIO_PROTECT
-};
-#endif
-
-
-#define PTHREAD_MUTEX_INITIALIZER \
- { {  __PTHREAD_MUTEX_INITIALIZER (PTHREAD_MUTEX_DEFAULT) } }
-#ifdef __USE_GNU
-# define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \
- { {  __PTHREAD_MUTEX_INITIALIZER (PTHREAD_MUTEX_RECURSIVE_NP) } }
-# define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \
- { {  __PTHREAD_MUTEX_INITIALIZER (PTHREAD_MUTEX_ERRORCHECK_NP) } }
-# define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \
- { {  __PTHREAD_MUTEX_INITIALIZER (PTHREAD_MUTEX_ADAPTIVE_NP) } }
-#endif
-
-
-/* Read-write lock types.  */
-#if defined __USE_UNIX98 || defined __USE_XOPEN2K
-enum
-{
-  PTHREAD_RWLOCK_PREFER_READER_NP,
-  PTHREAD_RWLOCK_PREFER_WRITER_NP,
-  PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP,
-  PTHREAD_RWLOCK_DEFAULT_NP = PTHREAD_RWLOCK_PREFER_READER_NP
-};
-
-
-/* Read-write lock initializers.  */
-# define PTHREAD_RWLOCK_INITIALIZER \
-  { { __PTHREAD_RWLOCK_INITIALIZER (PTHREAD_RWLOCK_DEFAULT_NP) } }
-# ifdef __USE_GNU
-#  define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \
-  { { __PTHREAD_RWLOCK_INITIALIZER (PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP) } }
-# endif
-#endif  /* Unix98 or XOpen2K */
-
-
-/* Scheduler inheritance.  */
-enum
-{
-  PTHREAD_INHERIT_SCHED,
-#define PTHREAD_INHERIT_SCHED   PTHREAD_INHERIT_SCHED
-  PTHREAD_EXPLICIT_SCHED
-#define PTHREAD_EXPLICIT_SCHED  PTHREAD_EXPLICIT_SCHED
-};
-
-
-/* Scope handling.  */
-enum
-{
-  PTHREAD_SCOPE_SYSTEM,
-#define PTHREAD_SCOPE_SYSTEM    PTHREAD_SCOPE_SYSTEM
-  PTHREAD_SCOPE_PROCESS
-#define PTHREAD_SCOPE_PROCESS   PTHREAD_SCOPE_PROCESS
-};
-
-
-/* Process shared or private flag.  */
-enum
-{
-  PTHREAD_PROCESS_PRIVATE,
-#define PTHREAD_PROCESS_PRIVATE PTHREAD_PROCESS_PRIVATE
-  PTHREAD_PROCESS_SHARED
-#define PTHREAD_PROCESS_SHARED  PTHREAD_PROCESS_SHARED
-};
-
-
-/* Conditional variable handling.  */
-#define PTHREAD_COND_INITIALIZER { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }
-
-
-/* Cleanup buffers */
-struct _pthread_cleanup_buffer
-{
-  void (*__routine) (void *);             /* Function to call.  */
-  void *__arg;                            /* Its argument.  */
-  int __canceltype;                       /* Saved cancellation type. */
-  struct _pthread_cleanup_buffer *__prev; /* Chaining of cleanup functions.  */
-};
-
-/* Cancellation */
-enum
-{
-  PTHREAD_CANCEL_ENABLE,
-#define PTHREAD_CANCEL_ENABLE   PTHREAD_CANCEL_ENABLE
-  PTHREAD_CANCEL_DISABLE
-#define PTHREAD_CANCEL_DISABLE  PTHREAD_CANCEL_DISABLE
-};
-enum
-{
-  PTHREAD_CANCEL_DEFERRED,
-#define PTHREAD_CANCEL_DEFERRED	PTHREAD_CANCEL_DEFERRED
-  PTHREAD_CANCEL_ASYNCHRONOUS
-#define PTHREAD_CANCEL_ASYNCHRONOUS	PTHREAD_CANCEL_ASYNCHRONOUS
-};
-#define PTHREAD_CANCELED ((void *) -1)
-
-
-/* Single execution handling.  */
-#define PTHREAD_ONCE_INIT 0
-
-
-#ifdef __USE_XOPEN2K
-/* Value returned by 'pthread_barrier_wait' for one of the threads after
-   the required number of threads have called this function.
-   -1 is distinct from 0 and all errno constants */
-# define PTHREAD_BARRIER_SERIAL_THREAD -1
-#endif
-
-
-__BEGIN_DECLS
-
-/* Create a new thread, starting with execution of START-ROUTINE
-   getting passed ARG.  Creation attributed come from ATTR.  The new
-   handle is stored in *NEWTHREAD.  */
-extern int pthread_create (pthread_t *__restrict __newthread,
-			   const pthread_attr_t *__restrict __attr,
-			   void *(*__start_routine) (void *),
-			   void *__restrict __arg) __THROWNL __nonnull ((1, 3));
-
-/* Terminate calling thread.
-
-   The registered cleanup handlers are called via exception handling
-   so we cannot mark this function with __THROW.*/
-extern void pthread_exit (void *__retval) __attribute__ ((__noreturn__));
-
-/* Make calling thread wait for termination of the thread TH.  The
-   exit status of the thread is stored in *THREAD_RETURN, if THREAD_RETURN
-   is not NULL.
-
-   This function is a cancellation point and therefore not marked with
-   __THROW.  */
-extern int pthread_join (pthread_t __th, void **__thread_return);
-
-#ifdef __USE_GNU
-/* Check whether thread TH has terminated.  If yes return the status of
-   the thread in *THREAD_RETURN, if THREAD_RETURN is not NULL.  */
-extern int pthread_tryjoin_np (pthread_t __th, void **__thread_return) __THROW;
-
-/* Make calling thread wait for termination of the thread TH, but only
-   until TIMEOUT.  The exit status of the thread is stored in
-   *THREAD_RETURN, if THREAD_RETURN is not NULL.
-
-   This function is a cancellation point and therefore not marked with
-   __THROW.  */
-extern int pthread_timedjoin_np (pthread_t __th, void **__thread_return,
-				 const struct timespec *__abstime);
-
-/* Make calling thread wait for termination of the thread TH, but only
-   until TIMEOUT measured against the clock specified by CLOCKID.  The
-   exit status of the thread is stored in *THREAD_RETURN, if
-   THREAD_RETURN is not NULL.
-
-   This function is a cancellation point and therefore not marked with
-   __THROW.  */
-extern int pthread_clockjoin_np (pthread_t __th, void **__thread_return,
-                                 clockid_t __clockid,
-				 const struct timespec *__abstime);
-#endif
-
-/* Indicate that the thread TH is never to be joined with PTHREAD_JOIN.
-   The resources of TH will therefore be freed immediately when it
-   terminates, instead of waiting for another thread to perform PTHREAD_JOIN
-   on it.  */
-extern int pthread_detach (pthread_t __th) __THROW;
-
-
-/* Obtain the identifier of the current thread.  */
-extern pthread_t pthread_self (void) __THROW __attribute__ ((__const__));
-
-/* Compare two thread identifiers.  */
-extern int pthread_equal (pthread_t __thread1, pthread_t __thread2)
-  __THROW __attribute__ ((__const__));
-
-
-/* Thread attribute handling.  */
-
-/* Initialize thread attribute *ATTR with default attributes
-   (detachstate is PTHREAD_JOINABLE, scheduling policy is SCHED_OTHER,
-    no user-provided stack).  */
-extern int pthread_attr_init (pthread_attr_t *__attr) __THROW __nonnull ((1));
-
-/* Destroy thread attribute *ATTR.  */
-extern int pthread_attr_destroy (pthread_attr_t *__attr)
-     __THROW __nonnull ((1));
-
-/* Get detach state attribute.  */
-extern int pthread_attr_getdetachstate (const pthread_attr_t *__attr,
-					int *__detachstate)
-     __THROW __nonnull ((1, 2));
-
-/* Set detach state attribute.  */
-extern int pthread_attr_setdetachstate (pthread_attr_t *__attr,
-					int __detachstate)
-     __THROW __nonnull ((1));
-
-
-/* Get the size of the guard area created for stack overflow protection.  */
-extern int pthread_attr_getguardsize (const pthread_attr_t *__attr,
-				      size_t *__guardsize)
-     __THROW __nonnull ((1, 2));
-
-/* Set the size of the guard area created for stack overflow protection.  */
-extern int pthread_attr_setguardsize (pthread_attr_t *__attr,
-				      size_t __guardsize)
-     __THROW __nonnull ((1));
-
-
-/* Return in *PARAM the scheduling parameters of *ATTR.  */
-extern int pthread_attr_getschedparam (const pthread_attr_t *__restrict __attr,
-				       struct sched_param *__restrict __param)
-     __THROW __nonnull ((1, 2));
-
-/* Set scheduling parameters (priority, etc) in *ATTR according to PARAM.  */
-extern int pthread_attr_setschedparam (pthread_attr_t *__restrict __attr,
-				       const struct sched_param *__restrict
-				       __param) __THROW __nonnull ((1, 2));
-
-/* Return in *POLICY the scheduling policy of *ATTR.  */
-extern int pthread_attr_getschedpolicy (const pthread_attr_t *__restrict
-					__attr, int *__restrict __policy)
-     __THROW __nonnull ((1, 2));
-
-/* Set scheduling policy in *ATTR according to POLICY.  */
-extern int pthread_attr_setschedpolicy (pthread_attr_t *__attr, int __policy)
-     __THROW __nonnull ((1));
-
-/* Return in *INHERIT the scheduling inheritance mode of *ATTR.  */
-extern int pthread_attr_getinheritsched (const pthread_attr_t *__restrict
-					 __attr, int *__restrict __inherit)
-     __THROW __nonnull ((1, 2));
-
-/* Set scheduling inheritance mode in *ATTR according to INHERIT.  */
-extern int pthread_attr_setinheritsched (pthread_attr_t *__attr,
-					 int __inherit)
-     __THROW __nonnull ((1));
-
-
-/* Return in *SCOPE the scheduling contention scope of *ATTR.  */
-extern int pthread_attr_getscope (const pthread_attr_t *__restrict __attr,
-				  int *__restrict __scope)
-     __THROW __nonnull ((1, 2));
-
-/* Set scheduling contention scope in *ATTR according to SCOPE.  */
-extern int pthread_attr_setscope (pthread_attr_t *__attr, int __scope)
-     __THROW __nonnull ((1));
-
-/* Return the previously set address for the stack.  */
-extern int pthread_attr_getstackaddr (const pthread_attr_t *__restrict
-				      __attr, void **__restrict __stackaddr)
-     __THROW __nonnull ((1, 2)) __attribute_deprecated__;
-
-/* Set the starting address of the stack of the thread to be created.
-   Depending on whether the stack grows up or down the value must either
-   be higher or lower than all the address in the memory block.  The
-   minimal size of the block must be PTHREAD_STACK_MIN.  */
-extern int pthread_attr_setstackaddr (pthread_attr_t *__attr,
-				      void *__stackaddr)
-     __THROW __nonnull ((1)) __attribute_deprecated__;
-
-/* Return the currently used minimal stack size.  */
-extern int pthread_attr_getstacksize (const pthread_attr_t *__restrict
-				      __attr, size_t *__restrict __stacksize)
-     __THROW __nonnull ((1, 2));
-
-/* Add information about the minimum stack size needed for the thread
-   to be started.  This size must never be less than PTHREAD_STACK_MIN
-   and must also not exceed the system limits.  */
-extern int pthread_attr_setstacksize (pthread_attr_t *__attr,
-				      size_t __stacksize)
-     __THROW __nonnull ((1));
-
-#ifdef __USE_XOPEN2K
-/* Return the previously set address for the stack.  */
-extern int pthread_attr_getstack (const pthread_attr_t *__restrict __attr,
-				  void **__restrict __stackaddr,
-				  size_t *__restrict __stacksize)
-     __THROW __nonnull ((1, 2, 3));
-
-/* The following two interfaces are intended to replace the last two.  They
-   require setting the address as well as the size since only setting the
-   address will make the implementation on some architectures impossible.  */
-extern int pthread_attr_setstack (pthread_attr_t *__attr, void *__stackaddr,
-				  size_t __stacksize) __THROW __nonnull ((1));
-#endif
-
-#ifdef __USE_GNU
-/* Thread created with attribute ATTR will be limited to run only on
-   the processors represented in CPUSET.  */
-extern int pthread_attr_setaffinity_np (pthread_attr_t *__attr,
-					size_t __cpusetsize,
-					const cpu_set_t *__cpuset)
-     __THROW __nonnull ((1, 3));
-
-/* Get bit set in CPUSET representing the processors threads created with
-   ATTR can run on.  */
-extern int pthread_attr_getaffinity_np (const pthread_attr_t *__attr,
-					size_t __cpusetsize,
-					cpu_set_t *__cpuset)
-     __THROW __nonnull ((1, 3));
-
-/* Get the default attributes used by pthread_create in this process.  */
-extern int pthread_getattr_default_np (pthread_attr_t *__attr)
-     __THROW __nonnull ((1));
-
-/* Set the default attributes to be used by pthread_create in this
-   process.  */
-extern int pthread_setattr_default_np (const pthread_attr_t *__attr)
-     __THROW __nonnull ((1));
-
-/* Initialize thread attribute *ATTR with attributes corresponding to the
-   already running thread TH.  It shall be called on uninitialized ATTR
-   and destroyed with pthread_attr_destroy when no longer needed.  */
-extern int pthread_getattr_np (pthread_t __th, pthread_attr_t *__attr)
-     __THROW __nonnull ((2));
-#endif
-
-
-/* Functions for scheduling control.  */
-
-/* Set the scheduling parameters for TARGET_THREAD according to POLICY
-   and *PARAM.  */
-extern int pthread_setschedparam (pthread_t __target_thread, int __policy,
-				  const struct sched_param *__param)
-     __THROW __nonnull ((3));
-
-/* Return in *POLICY and *PARAM the scheduling parameters for TARGET_THREAD. */
-extern int pthread_getschedparam (pthread_t __target_thread,
-				  int *__restrict __policy,
-				  struct sched_param *__restrict __param)
-     __THROW __nonnull ((2, 3));
-
-/* Set the scheduling priority for TARGET_THREAD.  */
-extern int pthread_setschedprio (pthread_t __target_thread, int __prio)
-     __THROW;
-
-
-#ifdef __USE_GNU
-/* Get thread name visible in the kernel and its interfaces.  */
-extern int pthread_getname_np (pthread_t __target_thread, char *__buf,
-			       size_t __buflen)
-     __THROW __nonnull ((2));
-
-/* Set thread name visible in the kernel and its interfaces.  */
-extern int pthread_setname_np (pthread_t __target_thread, const char *__name)
-     __THROW __nonnull ((2));
-#endif
-
-
-#ifdef __USE_UNIX98
-/* Determine level of concurrency.  */
-extern int pthread_getconcurrency (void) __THROW;
-
-/* Set new concurrency level to LEVEL.  */
-extern int pthread_setconcurrency (int __level) __THROW;
-#endif
-
-#ifdef __USE_GNU
-/* Yield the processor to another thread or process.
-   This function is similar to the POSIX `sched_yield' function but
-   might be differently implemented in the case of a m-on-n thread
-   implementation.  */
-extern int pthread_yield (void) __THROW;
-
-
-/* Limit specified thread TH to run only on the processors represented
-   in CPUSET.  */
-extern int pthread_setaffinity_np (pthread_t __th, size_t __cpusetsize,
-				   const cpu_set_t *__cpuset)
-     __THROW __nonnull ((3));
-
-/* Get bit set in CPUSET representing the processors TH can run on.  */
-extern int pthread_getaffinity_np (pthread_t __th, size_t __cpusetsize,
-				   cpu_set_t *__cpuset)
-     __THROW __nonnull ((3));
-#endif
-
-
-/* Functions for handling initialization.  */
-
-/* Guarantee that the initialization function INIT_ROUTINE will be called
-   only once, even if pthread_once is executed several times with the
-   same ONCE_CONTROL argument. ONCE_CONTROL must point to a static or
-   extern variable initialized to PTHREAD_ONCE_INIT.
-
-   The initialization functions might throw exception which is why
-   this function is not marked with __THROW.  */
-extern int pthread_once (pthread_once_t *__once_control,
-			 void (*__init_routine) (void)) __nonnull ((1, 2));
-
-
-/* Functions for handling cancellation.
-
-   Note that these functions are explicitly not marked to not throw an
-   exception in C++ code.  If cancellation is implemented by unwinding
-   this is necessary to have the compiler generate the unwind information.  */
-
-/* Set cancelability state of current thread to STATE, returning old
-   state in *OLDSTATE if OLDSTATE is not NULL.  */
-extern int pthread_setcancelstate (int __state, int *__oldstate);
-
-/* Set cancellation state of current thread to TYPE, returning the old
-   type in *OLDTYPE if OLDTYPE is not NULL.  */
-extern int pthread_setcanceltype (int __type, int *__oldtype);
-
-/* Cancel THREAD immediately or at the next possibility.  */
-extern int pthread_cancel (pthread_t __th);
-
-/* Test for pending cancellation for the current thread and terminate
-   the thread as per pthread_exit(PTHREAD_CANCELED) if it has been
-   cancelled.  */
-extern void pthread_testcancel (void);
-
-
-/* Cancellation handling with integration into exception handling.  */
-
-typedef struct
-{
-  struct
-  {
-    __jmp_buf __cancel_jmp_buf;
-    int __mask_was_saved;
-  } __cancel_jmp_buf[1];
-  void *__pad[4];
-} __pthread_unwind_buf_t __attribute__ ((__aligned__));
-
-/* No special attributes by default.  */
-#ifndef __cleanup_fct_attribute
-# define __cleanup_fct_attribute
-#endif
-
-
-/* Structure to hold the cleanup handler information.  */
-struct __pthread_cleanup_frame
-{
-  void (*__cancel_routine) (void *);
-  void *__cancel_arg;
-  int __do_it;
-  int __cancel_type;
-};
-
-#if defined __GNUC__ && defined __EXCEPTIONS
-# ifdef __cplusplus
-/* Class to handle cancellation handler invocation.  */
-class __pthread_cleanup_class
-{
-  void (*__cancel_routine) (void *);
-  void *__cancel_arg;
-  int __do_it;
-  int __cancel_type;
-
- public:
-  __pthread_cleanup_class (void (*__fct) (void *), void *__arg)
-    : __cancel_routine (__fct), __cancel_arg (__arg), __do_it (1) { }
-  ~__pthread_cleanup_class () { if (__do_it) __cancel_routine (__cancel_arg); }
-  void __setdoit (int __newval) { __do_it = __newval; }
-  void __defer () { pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED,
-					   &__cancel_type); }
-  void __restore () const { pthread_setcanceltype (__cancel_type, 0); }
-};
-
-/* Install a cleanup handler: ROUTINE will be called with arguments ARG
-   when the thread is canceled or calls pthread_exit.  ROUTINE will also
-   be called with arguments ARG when the matching pthread_cleanup_pop
-   is executed with non-zero EXECUTE argument.
-
-   pthread_cleanup_push and pthread_cleanup_pop are macros and must always
-   be used in matching pairs at the same nesting level of braces.  */
-#  define pthread_cleanup_push(routine, arg) \
-  do {									      \
-    __pthread_cleanup_class __clframe (routine, arg)
-
-/* Remove a cleanup handler installed by the matching pthread_cleanup_push.
-   If EXECUTE is non-zero, the handler function is called. */
-#  define pthread_cleanup_pop(execute) \
-    __clframe.__setdoit (execute);					      \
-  } while (0)
-
-#  ifdef __USE_GNU
-/* Install a cleanup handler as pthread_cleanup_push does, but also
-   saves the current cancellation type and sets it to deferred
-   cancellation.  */
-#   define pthread_cleanup_push_defer_np(routine, arg) \
-  do {									      \
-    __pthread_cleanup_class __clframe (routine, arg);			      \
-    __clframe.__defer ()
-
-/* Remove a cleanup handler as pthread_cleanup_pop does, but also
-   restores the cancellation type that was in effect when the matching
-   pthread_cleanup_push_defer was called.  */
-#   define pthread_cleanup_pop_restore_np(execute) \
-    __clframe.__restore ();						      \
-    __clframe.__setdoit (execute);					      \
-  } while (0)
-#  endif
-# else
-/* Function called to call the cleanup handler.  As an extern inline
-   function the compiler is free to decide inlining the change when
-   needed or fall back on the copy which must exist somewhere
-   else.  */
-__extern_inline void
-__pthread_cleanup_routine (struct __pthread_cleanup_frame *__frame)
-{
-  if (__frame->__do_it)
-    __frame->__cancel_routine (__frame->__cancel_arg);
-}
-
-/* Install a cleanup handler: ROUTINE will be called with arguments ARG
-   when the thread is canceled or calls pthread_exit.  ROUTINE will also
-   be called with arguments ARG when the matching pthread_cleanup_pop
-   is executed with non-zero EXECUTE argument.
-
-   pthread_cleanup_push and pthread_cleanup_pop are macros and must always
-   be used in matching pairs at the same nesting level of braces.  */
-#  define pthread_cleanup_push(routine, arg) \
-  do {									      \
-    struct __pthread_cleanup_frame __clframe				      \
-      __attribute__ ((__cleanup__ (__pthread_cleanup_routine)))		      \
-      = { .__cancel_routine = (routine), .__cancel_arg = (arg),	 	      \
-	  .__do_it = 1 };
-
-/* Remove a cleanup handler installed by the matching pthread_cleanup_push.
-   If EXECUTE is non-zero, the handler function is called. */
-#  define pthread_cleanup_pop(execute) \
-    __clframe.__do_it = (execute);					      \
-  } while (0)
-
-#  ifdef __USE_GNU
-/* Install a cleanup handler as pthread_cleanup_push does, but also
-   saves the current cancellation type and sets it to deferred
-   cancellation.  */
-#   define pthread_cleanup_push_defer_np(routine, arg) \
-  do {									      \
-    struct __pthread_cleanup_frame __clframe				      \
-      __attribute__ ((__cleanup__ (__pthread_cleanup_routine)))		      \
-      = { .__cancel_routine = (routine), .__cancel_arg = (arg),		      \
-	  .__do_it = 1 };						      \
-    (void) pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED,		      \
-				  &__clframe.__cancel_type)
-
-/* Remove a cleanup handler as pthread_cleanup_pop does, but also
-   restores the cancellation type that was in effect when the matching
-   pthread_cleanup_push_defer was called.  */
-#   define pthread_cleanup_pop_restore_np(execute) \
-    (void) pthread_setcanceltype (__clframe.__cancel_type, NULL);	      \
-    __clframe.__do_it = (execute);					      \
-  } while (0)
-#  endif
-# endif
-#else
-/* Install a cleanup handler: ROUTINE will be called with arguments ARG
-   when the thread is canceled or calls pthread_exit.  ROUTINE will also
-   be called with arguments ARG when the matching pthread_cleanup_pop
-   is executed with non-zero EXECUTE argument.
-
-   pthread_cleanup_push and pthread_cleanup_pop are macros and must always
-   be used in matching pairs at the same nesting level of braces.  */
-# define pthread_cleanup_push(routine, arg) \
-  do {									      \
-    __pthread_unwind_buf_t __cancel_buf;				      \
-    void (*__cancel_routine) (void *) = (routine);			      \
-    void *__cancel_arg = (arg);						      \
-    int __not_first_call = __sigsetjmp ((struct __jmp_buf_tag *) (void *)     \
-					__cancel_buf.__cancel_jmp_buf, 0);    \
-    if (__glibc_unlikely (__not_first_call))				      \
-      {									      \
-	__cancel_routine (__cancel_arg);				      \
-	__pthread_unwind_next (&__cancel_buf);				      \
-	/* NOTREACHED */						      \
-      }									      \
-									      \
-    __pthread_register_cancel (&__cancel_buf);				      \
-    do {
-extern void __pthread_register_cancel (__pthread_unwind_buf_t *__buf)
-     __cleanup_fct_attribute;
-
-/* Remove a cleanup handler installed by the matching pthread_cleanup_push.
-   If EXECUTE is non-zero, the handler function is called. */
-# define pthread_cleanup_pop(execute) \
-      do { } while (0);/* Empty to allow label before pthread_cleanup_pop.  */\
-    } while (0);							      \
-    __pthread_unregister_cancel (&__cancel_buf);			      \
-    if (execute)							      \
-      __cancel_routine (__cancel_arg);					      \
-  } while (0)
-extern void __pthread_unregister_cancel (__pthread_unwind_buf_t *__buf)
-  __cleanup_fct_attribute;
-
-# ifdef __USE_GNU
-/* Install a cleanup handler as pthread_cleanup_push does, but also
-   saves the current cancellation type and sets it to deferred
-   cancellation.  */
-#  define pthread_cleanup_push_defer_np(routine, arg) \
-  do {									      \
-    __pthread_unwind_buf_t __cancel_buf;				      \
-    void (*__cancel_routine) (void *) = (routine);			      \
-    void *__cancel_arg = (arg);						      \
-    int __not_first_call = __sigsetjmp ((struct __jmp_buf_tag *) (void *)     \
-					__cancel_buf.__cancel_jmp_buf, 0);    \
-    if (__glibc_unlikely (__not_first_call))				      \
-      {									      \
-	__cancel_routine (__cancel_arg);				      \
-	__pthread_unwind_next (&__cancel_buf);				      \
-	/* NOTREACHED */						      \
-      }									      \
-									      \
-    __pthread_register_cancel_defer (&__cancel_buf);			      \
-    do {
-extern void __pthread_register_cancel_defer (__pthread_unwind_buf_t *__buf)
-     __cleanup_fct_attribute;
-
-/* Remove a cleanup handler as pthread_cleanup_pop does, but also
-   restores the cancellation type that was in effect when the matching
-   pthread_cleanup_push_defer was called.  */
-#  define pthread_cleanup_pop_restore_np(execute) \
-      do { } while (0);/* Empty to allow label before pthread_cleanup_pop.  */\
-    } while (0);							      \
-    __pthread_unregister_cancel_restore (&__cancel_buf);		      \
-    if (execute)							      \
-      __cancel_routine (__cancel_arg);					      \
-  } while (0)
-extern void __pthread_unregister_cancel_restore (__pthread_unwind_buf_t *__buf)
-  __cleanup_fct_attribute;
-# endif
-
-/* Internal interface to initiate cleanup.  */
-extern void __pthread_unwind_next (__pthread_unwind_buf_t *__buf)
-     __cleanup_fct_attribute __attribute__ ((__noreturn__))
-# ifndef SHARED
-     __attribute__ ((__weak__))
-# endif
-     ;
-#endif
-
-/* Function used in the macros.  */
-struct __jmp_buf_tag;
-extern int __sigsetjmp (struct __jmp_buf_tag *__env, int __savemask) __THROWNL;
-
-
-/* Mutex handling.  */
-
-/* Initialize a mutex.  */
-extern int pthread_mutex_init (pthread_mutex_t *__mutex,
-			       const pthread_mutexattr_t *__mutexattr)
-     __THROW __nonnull ((1));
-
-/* Destroy a mutex.  */
-extern int pthread_mutex_destroy (pthread_mutex_t *__mutex)
-     __THROW __nonnull ((1));
-
-/* Try locking a mutex.  */
-extern int pthread_mutex_trylock (pthread_mutex_t *__mutex)
-     __THROWNL __nonnull ((1));
-
-/* Lock a mutex.  */
-extern int pthread_mutex_lock (pthread_mutex_t *__mutex)
-     __THROWNL __nonnull ((1));
-
-#ifdef __USE_XOPEN2K
-/* Wait until lock becomes available, or specified time passes. */
-extern int pthread_mutex_timedlock (pthread_mutex_t *__restrict __mutex,
-				    const struct timespec *__restrict
-				    __abstime) __THROWNL __nonnull ((1, 2));
-#endif
-
-#ifdef __USE_GNU
-extern int pthread_mutex_clocklock (pthread_mutex_t *__restrict __mutex,
-				    clockid_t __clockid,
-				    const struct timespec *__restrict
-				    __abstime) __THROWNL __nonnull ((1, 3));
-#endif
-
-/* Unlock a mutex.  */
-extern int pthread_mutex_unlock (pthread_mutex_t *__mutex)
-     __THROWNL __nonnull ((1));
-
-
-/* Get the priority ceiling of MUTEX.  */
-extern int pthread_mutex_getprioceiling (const pthread_mutex_t *
-					 __restrict __mutex,
-					 int *__restrict __prioceiling)
-     __THROW __nonnull ((1, 2));
-
-/* Set the priority ceiling of MUTEX to PRIOCEILING, return old
-   priority ceiling value in *OLD_CEILING.  */
-extern int pthread_mutex_setprioceiling (pthread_mutex_t *__restrict __mutex,
-					 int __prioceiling,
-					 int *__restrict __old_ceiling)
-     __THROW __nonnull ((1, 3));
-
-
-#ifdef __USE_XOPEN2K8
-/* Declare the state protected by MUTEX as consistent.  */
-extern int pthread_mutex_consistent (pthread_mutex_t *__mutex)
-     __THROW __nonnull ((1));
-# ifdef __USE_GNU
-extern int pthread_mutex_consistent_np (pthread_mutex_t *__mutex)
-     __THROW __nonnull ((1));
-# endif
-#endif
-
-
-/* Functions for handling mutex attributes.  */
-
-/* Initialize mutex attribute object ATTR with default attributes
-   (kind is PTHREAD_MUTEX_TIMED_NP).  */
-extern int pthread_mutexattr_init (pthread_mutexattr_t *__attr)
-     __THROW __nonnull ((1));
-
-/* Destroy mutex attribute object ATTR.  */
-extern int pthread_mutexattr_destroy (pthread_mutexattr_t *__attr)
-     __THROW __nonnull ((1));
-
-/* Get the process-shared flag of the mutex attribute ATTR.  */
-extern int pthread_mutexattr_getpshared (const pthread_mutexattr_t *
-					 __restrict __attr,
-					 int *__restrict __pshared)
-     __THROW __nonnull ((1, 2));
-
-/* Set the process-shared flag of the mutex attribute ATTR.  */
-extern int pthread_mutexattr_setpshared (pthread_mutexattr_t *__attr,
-					 int __pshared)
-     __THROW __nonnull ((1));
-
-#if defined __USE_UNIX98 || defined __USE_XOPEN2K8
-/* Return in *KIND the mutex kind attribute in *ATTR.  */
-extern int pthread_mutexattr_gettype (const pthread_mutexattr_t *__restrict
-				      __attr, int *__restrict __kind)
-     __THROW __nonnull ((1, 2));
-
-/* Set the mutex kind attribute in *ATTR to KIND (either PTHREAD_MUTEX_NORMAL,
-   PTHREAD_MUTEX_RECURSIVE, PTHREAD_MUTEX_ERRORCHECK, or
-   PTHREAD_MUTEX_DEFAULT).  */
-extern int pthread_mutexattr_settype (pthread_mutexattr_t *__attr, int __kind)
-     __THROW __nonnull ((1));
-#endif
-
-/* Return in *PROTOCOL the mutex protocol attribute in *ATTR.  */
-extern int pthread_mutexattr_getprotocol (const pthread_mutexattr_t *
-					  __restrict __attr,
-					  int *__restrict __protocol)
-     __THROW __nonnull ((1, 2));
-
-/* Set the mutex protocol attribute in *ATTR to PROTOCOL (either
-   PTHREAD_PRIO_NONE, PTHREAD_PRIO_INHERIT, or PTHREAD_PRIO_PROTECT).  */
-extern int pthread_mutexattr_setprotocol (pthread_mutexattr_t *__attr,
-					  int __protocol)
-     __THROW __nonnull ((1));
-
-/* Return in *PRIOCEILING the mutex prioceiling attribute in *ATTR.  */
-extern int pthread_mutexattr_getprioceiling (const pthread_mutexattr_t *
-					     __restrict __attr,
-					     int *__restrict __prioceiling)
-     __THROW __nonnull ((1, 2));
-
-/* Set the mutex prioceiling attribute in *ATTR to PRIOCEILING.  */
-extern int pthread_mutexattr_setprioceiling (pthread_mutexattr_t *__attr,
-					     int __prioceiling)
-     __THROW __nonnull ((1));
-
-#ifdef __USE_XOPEN2K
-/* Get the robustness flag of the mutex attribute ATTR.  */
-extern int pthread_mutexattr_getrobust (const pthread_mutexattr_t *__attr,
-					int *__robustness)
-     __THROW __nonnull ((1, 2));
-# ifdef __USE_GNU
-extern int pthread_mutexattr_getrobust_np (const pthread_mutexattr_t *__attr,
-					   int *__robustness)
-     __THROW __nonnull ((1, 2));
-# endif
-
-/* Set the robustness flag of the mutex attribute ATTR.  */
-extern int pthread_mutexattr_setrobust (pthread_mutexattr_t *__attr,
-					int __robustness)
-     __THROW __nonnull ((1));
-# ifdef __USE_GNU
-extern int pthread_mutexattr_setrobust_np (pthread_mutexattr_t *__attr,
-					   int __robustness)
-     __THROW __nonnull ((1));
-# endif
-#endif
-
-
-#if defined __USE_UNIX98 || defined __USE_XOPEN2K
-/* Functions for handling read-write locks.  */
-
-/* Initialize read-write lock RWLOCK using attributes ATTR, or use
-   the default values if later is NULL.  */
-extern int pthread_rwlock_init (pthread_rwlock_t *__restrict __rwlock,
-				const pthread_rwlockattr_t *__restrict
-				__attr) __THROW __nonnull ((1));
-
-/* Destroy read-write lock RWLOCK.  */
-extern int pthread_rwlock_destroy (pthread_rwlock_t *__rwlock)
-     __THROW __nonnull ((1));
-
-/* Acquire read lock for RWLOCK.  */
-extern int pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock)
-     __THROWNL __nonnull ((1));
-
-/* Try to acquire read lock for RWLOCK.  */
-extern int pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock)
-  __THROWNL __nonnull ((1));
-
-# ifdef __USE_XOPEN2K
-/* Try to acquire read lock for RWLOCK or return after specfied time.  */
-extern int pthread_rwlock_timedrdlock (pthread_rwlock_t *__restrict __rwlock,
-				       const struct timespec *__restrict
-				       __abstime) __THROWNL __nonnull ((1, 2));
-# endif
-
-# ifdef __USE_GNU
-extern int pthread_rwlock_clockrdlock (pthread_rwlock_t *__restrict __rwlock,
-				       clockid_t __clockid,
-				       const struct timespec *__restrict
-				       __abstime) __THROWNL __nonnull ((1, 3));
-# endif
-
-/* Acquire write lock for RWLOCK.  */
-extern int pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock)
-     __THROWNL __nonnull ((1));
-
-/* Try to acquire write lock for RWLOCK.  */
-extern int pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock)
-     __THROWNL __nonnull ((1));
-
-# ifdef __USE_XOPEN2K
-/* Try to acquire write lock for RWLOCK or return after specfied time.  */
-extern int pthread_rwlock_timedwrlock (pthread_rwlock_t *__restrict __rwlock,
-				       const struct timespec *__restrict
-				       __abstime) __THROWNL __nonnull ((1, 2));
-# endif
-
-# ifdef __USE_GNU
-extern int pthread_rwlock_clockwrlock (pthread_rwlock_t *__restrict __rwlock,
-				       clockid_t __clockid,
-				       const struct timespec *__restrict
-				       __abstime) __THROWNL __nonnull ((1, 3));
-# endif
-
-/* Unlock RWLOCK.  */
-extern int pthread_rwlock_unlock (pthread_rwlock_t *__rwlock)
-     __THROWNL __nonnull ((1));
-
-
-/* Functions for handling read-write lock attributes.  */
-
-/* Initialize attribute object ATTR with default values.  */
-extern int pthread_rwlockattr_init (pthread_rwlockattr_t *__attr)
-     __THROW __nonnull ((1));
-
-/* Destroy attribute object ATTR.  */
-extern int pthread_rwlockattr_destroy (pthread_rwlockattr_t *__attr)
-     __THROW __nonnull ((1));
-
-/* Return current setting of process-shared attribute of ATTR in PSHARED.  */
-extern int pthread_rwlockattr_getpshared (const pthread_rwlockattr_t *
-					  __restrict __attr,
-					  int *__restrict __pshared)
-     __THROW __nonnull ((1, 2));
-
-/* Set process-shared attribute of ATTR to PSHARED.  */
-extern int pthread_rwlockattr_setpshared (pthread_rwlockattr_t *__attr,
-					  int __pshared)
-     __THROW __nonnull ((1));
-
-/* Return current setting of reader/writer preference.  */
-extern int pthread_rwlockattr_getkind_np (const pthread_rwlockattr_t *
-					  __restrict __attr,
-					  int *__restrict __pref)
-     __THROW __nonnull ((1, 2));
-
-/* Set reader/write preference.  */
-extern int pthread_rwlockattr_setkind_np (pthread_rwlockattr_t *__attr,
-					  int __pref) __THROW __nonnull ((1));
-#endif
-
-
-/* Functions for handling conditional variables.  */
-
-/* Initialize condition variable COND using attributes ATTR, or use
-   the default values if later is NULL.  */
-extern int pthread_cond_init (pthread_cond_t *__restrict __cond,
-			      const pthread_condattr_t *__restrict __cond_attr)
-     __THROW __nonnull ((1));
-
-/* Destroy condition variable COND.  */
-extern int pthread_cond_destroy (pthread_cond_t *__cond)
-     __THROW __nonnull ((1));
-
-/* Wake up one thread waiting for condition variable COND.  */
-extern int pthread_cond_signal (pthread_cond_t *__cond)
-     __THROWNL __nonnull ((1));
-
-/* Wake up all threads waiting for condition variables COND.  */
-extern int pthread_cond_broadcast (pthread_cond_t *__cond)
-     __THROWNL __nonnull ((1));
-
-/* Wait for condition variable COND to be signaled or broadcast.
-   MUTEX is assumed to be locked before.
-
-   This function is a cancellation point and therefore not marked with
-   __THROW.  */
-extern int pthread_cond_wait (pthread_cond_t *__restrict __cond,
-			      pthread_mutex_t *__restrict __mutex)
-     __nonnull ((1, 2));
-
-/* Wait for condition variable COND to be signaled or broadcast until
-   ABSTIME.  MUTEX is assumed to be locked before.  ABSTIME is an
-   absolute time specification; zero is the beginning of the epoch
-   (00:00:00 GMT, January 1, 1970).
-
-   This function is a cancellation point and therefore not marked with
-   __THROW.  */
-extern int pthread_cond_timedwait (pthread_cond_t *__restrict __cond,
-				   pthread_mutex_t *__restrict __mutex,
-				   const struct timespec *__restrict __abstime)
-     __nonnull ((1, 2, 3));
-
-# ifdef __USE_GNU
-/* Wait for condition variable COND to be signaled or broadcast until
-   ABSTIME measured by the specified clock. MUTEX is assumed to be
-   locked before. CLOCK is the clock to use. ABSTIME is an absolute
-   time specification against CLOCK's epoch.
-
-   This function is a cancellation point and therefore not marked with
-   __THROW. */
-extern int pthread_cond_clockwait (pthread_cond_t *__restrict __cond,
-				   pthread_mutex_t *__restrict __mutex,
-				   __clockid_t __clock_id,
-				   const struct timespec *__restrict __abstime)
-     __nonnull ((1, 2, 4));
-# endif
-
-/* Functions for handling condition variable attributes.  */
-
-/* Initialize condition variable attribute ATTR.  */
-extern int pthread_condattr_init (pthread_condattr_t *__attr)
-     __THROW __nonnull ((1));
-
-/* Destroy condition variable attribute ATTR.  */
-extern int pthread_condattr_destroy (pthread_condattr_t *__attr)
-     __THROW __nonnull ((1));
-
-/* Get the process-shared flag of the condition variable attribute ATTR.  */
-extern int pthread_condattr_getpshared (const pthread_condattr_t *
-					__restrict __attr,
-					int *__restrict __pshared)
-     __THROW __nonnull ((1, 2));
-
-/* Set the process-shared flag of the condition variable attribute ATTR.  */
-extern int pthread_condattr_setpshared (pthread_condattr_t *__attr,
-					int __pshared) __THROW __nonnull ((1));
-
-#ifdef __USE_XOPEN2K
-/* Get the clock selected for the condition variable attribute ATTR.  */
-extern int pthread_condattr_getclock (const pthread_condattr_t *
-				      __restrict __attr,
-				      __clockid_t *__restrict __clock_id)
-     __THROW __nonnull ((1, 2));
-
-/* Set the clock selected for the condition variable attribute ATTR.  */
-extern int pthread_condattr_setclock (pthread_condattr_t *__attr,
-				      __clockid_t __clock_id)
-     __THROW __nonnull ((1));
-#endif
-
-
-#ifdef __USE_XOPEN2K
-/* Functions to handle spinlocks.  */
-
-/* Initialize the spinlock LOCK.  If PSHARED is nonzero the spinlock can
-   be shared between different processes.  */
-extern int pthread_spin_init (pthread_spinlock_t *__lock, int __pshared)
-     __THROW __nonnull ((1));
-
-/* Destroy the spinlock LOCK.  */
-extern int pthread_spin_destroy (pthread_spinlock_t *__lock)
-     __THROW __nonnull ((1));
-
-/* Wait until spinlock LOCK is retrieved.  */
-extern int pthread_spin_lock (pthread_spinlock_t *__lock)
-     __THROWNL __nonnull ((1));
-
-/* Try to lock spinlock LOCK.  */
-extern int pthread_spin_trylock (pthread_spinlock_t *__lock)
-     __THROWNL __nonnull ((1));
-
-/* Release spinlock LOCK.  */
-extern int pthread_spin_unlock (pthread_spinlock_t *__lock)
-     __THROWNL __nonnull ((1));
-
-
-/* Functions to handle barriers.  */
-
-/* Initialize BARRIER with the attributes in ATTR.  The barrier is
-   opened when COUNT waiters arrived.  */
-extern int pthread_barrier_init (pthread_barrier_t *__restrict __barrier,
-				 const pthread_barrierattr_t *__restrict
-				 __attr, unsigned int __count)
-     __THROW __nonnull ((1));
-
-/* Destroy a previously dynamically initialized barrier BARRIER.  */
-extern int pthread_barrier_destroy (pthread_barrier_t *__barrier)
-     __THROW __nonnull ((1));
-
-/* Wait on barrier BARRIER.  */
-extern int pthread_barrier_wait (pthread_barrier_t *__barrier)
-     __THROWNL __nonnull ((1));
-
-
-/* Initialize barrier attribute ATTR.  */
-extern int pthread_barrierattr_init (pthread_barrierattr_t *__attr)
-     __THROW __nonnull ((1));
-
-/* Destroy previously dynamically initialized barrier attribute ATTR.  */
-extern int pthread_barrierattr_destroy (pthread_barrierattr_t *__attr)
-     __THROW __nonnull ((1));
-
-/* Get the process-shared flag of the barrier attribute ATTR.  */
-extern int pthread_barrierattr_getpshared (const pthread_barrierattr_t *
-					   __restrict __attr,
-					   int *__restrict __pshared)
-     __THROW __nonnull ((1, 2));
-
-/* Set the process-shared flag of the barrier attribute ATTR.  */
-extern int pthread_barrierattr_setpshared (pthread_barrierattr_t *__attr,
-					   int __pshared)
-     __THROW __nonnull ((1));
-#endif
-
-
-/* Functions for handling thread-specific data.  */
-
-/* Create a key value identifying a location in the thread-specific
-   data area.  Each thread maintains a distinct thread-specific data
-   area.  DESTR_FUNCTION, if non-NULL, is called with the value
-   associated to that key when the key is destroyed.
-   DESTR_FUNCTION is not called if the value associated is NULL when
-   the key is destroyed.  */
-extern int pthread_key_create (pthread_key_t *__key,
-			       void (*__destr_function) (void *))
-     __THROW __nonnull ((1));
-
-/* Destroy KEY.  */
-extern int pthread_key_delete (pthread_key_t __key) __THROW;
-
-/* Return current value of the thread-specific data slot identified by KEY.  */
-extern void *pthread_getspecific (pthread_key_t __key) __THROW;
-
-/* Store POINTER in the thread-specific data slot identified by KEY. */
-extern int pthread_setspecific (pthread_key_t __key,
-				const void *__pointer) __THROW ;
-
-
-#ifdef __USE_XOPEN2K
-/* Get ID of CPU-time clock for thread THREAD_ID.  */
-extern int pthread_getcpuclockid (pthread_t __thread_id,
-				  __clockid_t *__clock_id)
-     __THROW __nonnull ((2));
-#endif
-
-
-/* Install handlers to be called when a new process is created with FORK.
-   The PREPARE handler is called in the parent process just before performing
-   FORK. The PARENT handler is called in the parent process just after FORK.
-   The CHILD handler is called in the child process.  Each of the three
-   handlers can be NULL, meaning that no handler needs to be called at that
-   point.
-   PTHREAD_ATFORK can be called several times, in which case the PREPARE
-   handlers are called in LIFO order (last added with PTHREAD_ATFORK,
-   first called before FORK), and the PARENT and CHILD handlers are called
-   in FIFO (first added, first called).  */
-
-extern int pthread_atfork (void (*__prepare) (void),
-			   void (*__parent) (void),
-			   void (*__child) (void)) __THROW;
-
-
-#ifdef __USE_EXTERN_INLINES
-/* Optimizations.  */
-__extern_inline int
-__NTH (pthread_equal (pthread_t __thread1, pthread_t __thread2))
-{
-  return __thread1 == __thread2;
-}
-#endif
-
-__END_DECLS
-
-#endif	/* pthread.h */