nptl: Add POSIX-proposed _clock functions to hppa pthread.h

The pthread _clock functions that were recently added to nptl need to be
declared in hppa's pthread.h too. After this change, the function
declaration part of sysdeps/nptl/pthread.h and
sysdeps/unix/sysv/linux/hppa/pthread.h are identical.

	* sysdeps/unix/sysv/linux/hppa/pthread.h: Add declarations of
	functions recently added to sysdeps/nptl/pthread.h:
	pthread_mutex_clocklock, pthread_rwlock_clockrdlock,
	pthread_rwlock_clockwrlock and pthread_cond_clockwait.

Reviewed-by: Adhemerval Zanella <[email protected]>

ChangeLog

@@ -1,5 +1,10 @@
 2019-07-18  Mike Crowe  <[email protected]>
 
+	* sysdeps/unix/sysv/linux/hppa/pthread.h: Add declarations of
+	functions recently added to sysdeps/nptl/pthread.h:
+	pthread_mutex_clocklock, pthread_rwlock_clockrdlock,
+	pthread_rwlock_clockwrlock and pthread_cond_clockwait.
+
 	* nptl/forward.c: Remove unnecessary __pthread_cond_clockwait and
 	pthread_cond_clockwait forwarding functions.  There are no internal
 	users, so it is unnecessary to expose these functions in libc.so.

sysdeps/unix/sysv/linux/hppa/pthread.h

@@ -746,6 +746,13 @@ extern int pthread_mutex_timedlock (pthread_mutex_t *__restrict __mutex,
 				    __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));
@@ -885,6 +892,13 @@ extern int pthread_rwlock_timedrdlock (pthread_rwlock_t *__restrict __rwlock,
 				       __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));
@@ -900,6 +914,13 @@ extern int pthread_rwlock_timedwrlock (pthread_rwlock_t *__restrict __rwlock,
 				       __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));
@@ -979,6 +1000,21 @@ extern int pthread_cond_timedwait (pthread_cond_t *__restrict __cond,
 				   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.  */