Update.

2003-09-22  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/unix/sysv/linux/lowlevellock.c (__lll_timedlock_wait): Use
	lll_futex_timed_wait instead of lll_futex_wait.
	* sysdeps/unix/sysv/linux/s390/lowlevellock.c: Removed.
	* sysdeps/unix/sysv/linux/s390/lowlevelmutex.c: Removed.
	* sysdeps/unix/sysv/linux/s390/libc-lowlevellock.c: Removed.
	* sysdeps/unix/sysv/linux/s390/libc-lowlevelmutex.c: Removed.
	* sysdeps/unix/sysv/linux/s390/sem_trywait.c: Removed.
	* sysdeps/unix/sysv/linux/s390/sem_wait.c: Removed.
	* sysdeps/unix/sysv/linux/s390/sem_post.c: Removed.
	* sysdeps/unix/sysv/linux/s390/sem_timedwait.c: Removed.
	* sysdeps/unix/sysv/linux/s390/lowlevellock.h: Include atomic.h.
	Completely revamp the locking macros.  No distinction between
	normal and mutex locking anymore.
	* sysdeps/unix/sysv/linux/sparc/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/lowlevellock.h (__lll_lock_wait,
	__lll_lock_timedwait): Fix prototypes.
	* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h (__lll_lock_wait,
	__lll_lock_timedwait): Likewise.
	(lll_mutex_lock, lll_mutex_cond_lock): Use _val instead of _bool
	macros, add __builtin_expect.
	(lll_mutex_timedlock): Likewise.  Fix return value.
	* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevelmutex.S: Removed.
	* sysdeps/unix/sysv/linux/i386/i586/libc-lowlevelmutex.S: Removed.
	* sysdeps/unix/sysv/linux/i386/i586/lowlevelmutex.S: Removed.
	* sysdeps/unix/sysv/linux/i386/i686/libc-lowlevelmutex.S: Removed.
	* sysdeps/unix/sysv/linux/i386/i686/lowlevelmutex.S: Removed.
	* sysdeps/unix/sysv/linux/x86_64/libc-lowlevelmutex.S: Removed.
	* sysdeps/unix/sysv/linux/lowlevelmutex.c: Removed.
	* sysdeps/unix/sysv/linux/libc-lowlevelmutex.c: Removed.

21 files changed, 49 insertions, 733 deletions

diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevelmutex.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevelmutex.S
deleted file mode 100644
index 8b6bff4..0000000
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevelmutex.S
+++ /dev/null
@@ -1,30 +0,0 @@
-/* Copyright (C) 2002, 2003 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.  */
-
-/* In libc.so we do not unconditionally use the lock prefix.  Only if
-   the application is using threads.  */
-#ifndef UP
-# define LOCK \
-	cmpl	$0, %gs:MULTIPLE_THREADS_OFFSET; 			      \
-	je,pt	0f;							      \
-	lock;								      \
-0:
-#endif
-
-#include "lowlevelmutex.S"
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i586/libc-lowlevelmutex.S b/nptl/sysdeps/unix/sysv/linux/i386/i586/libc-lowlevelmutex.S
deleted file mode 100644
index 7c24ed1..0000000
--- a/nptl/sysdeps/unix/sysv/linux/i386/i586/libc-lowlevelmutex.S
+++ /dev/null
@@ -1 +0,0 @@
-#include "../i486/libc-lowlevelmutex.S"
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i586/lowlevelmutex.S b/nptl/sysdeps/unix/sysv/linux/i386/i586/lowlevelmutex.S
deleted file mode 100644
index 5048199..0000000
--- a/nptl/sysdeps/unix/sysv/linux/i386/i586/lowlevelmutex.S
+++ /dev/null
@@ -1,20 +0,0 @@
-/* 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 "../i486/lowlevelmutex.S"
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i686/libc-lowlevelmutex.S b/nptl/sysdeps/unix/sysv/linux/i386/i686/libc-lowlevelmutex.S
deleted file mode 100644
index 7c24ed1..0000000
--- a/nptl/sysdeps/unix/sysv/linux/i386/i686/libc-lowlevelmutex.S
+++ /dev/null
@@ -1 +0,0 @@
-#include "../i486/libc-lowlevelmutex.S"
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i686/lowlevelmutex.S b/nptl/sysdeps/unix/sysv/linux/i386/i686/lowlevelmutex.S
deleted file mode 100644
index 5048199..0000000
--- a/nptl/sysdeps/unix/sysv/linux/i386/i686/lowlevelmutex.S
+++ /dev/null
@@ -1,20 +0,0 @@
-/* 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 "../i486/lowlevelmutex.S"
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h
index b30659f..d068b06 100644
--- a/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h
@@ -120,7 +120,7 @@ __lll_mutex_trylock (int *futex)
 #define lll_mutex_trylock(futex) __lll_mutex_trylock (&(futex))
 
 
-extern void __lll_lock_wait (int *futex, int val) attribute_hidden;
+extern void __lll_lock_wait (int *futex) attribute_hidden;
 
 
 static inline void
@@ -143,7 +143,7 @@ __lll_mutex_cond_lock (int *futex)
 #define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex))
 
 
-extern int __lll_timedlock_wait (int *futex, int val, const struct timespec *)
+extern int __lll_timedlock_wait (int *futex, const struct timespec *)
      attribute_hidden;
 
 
diff --git a/nptl/sysdeps/unix/sysv/linux/libc-lowlevelmutex.c b/nptl/sysdeps/unix/sysv/linux/libc-lowlevelmutex.c
deleted file mode 100644
index 7c594e3..0000000
--- a/nptl/sysdeps/unix/sysv/linux/libc-lowlevelmutex.c
+++ /dev/null
@@ -1 +0,0 @@
-/* Nothing needed here in fact.  */
diff --git a/nptl/sysdeps/unix/sysv/linux/lowlevellock.c b/nptl/sysdeps/unix/sysv/linux/lowlevellock.c
index 5021cdf..932e273 100644
--- a/nptl/sysdeps/unix/sysv/linux/lowlevellock.c
+++ b/nptl/sysdeps/unix/sysv/linux/lowlevellock.c
@@ -68,7 +68,7 @@ __lll_timedlock_wait (int *futex, const struct timespec *abstime)
       /* Wait.  */
       int oldval = atomic_compare_and_exchange_val_acq (futex, 2, 1);
       if (oldval != 0)
-	lll_futex_wait (futex, 2);
+	lll_futex_timed_wait (futex, 2, &rt);
     }
   while (atomic_compare_and_exchange_bool_acq (futex, 2, 0) != 0);
 
diff --git a/nptl/sysdeps/unix/sysv/linux/lowlevelmutex.c b/nptl/sysdeps/unix/sysv/linux/lowlevelmutex.c
deleted file mode 100644
index 7c594e3..0000000
--- a/nptl/sysdeps/unix/sysv/linux/lowlevelmutex.c
+++ /dev/null
@@ -1 +0,0 @@
-/* Nothing needed here in fact.  */
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
index 0caee0c..a715879 100644
--- a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
@@ -101,30 +101,35 @@
 #define lll_mutex_trylock(lock)	__lll_trylock (&(lock))
 
 
-extern void __lll_lock_wait (int *futex, int val) attribute_hidden;
+extern void __lll_lock_wait (int *futex) attribute_hidden;
 
 #define lll_mutex_lock(lock) \
   (void) ({								      \
     int *__futex = &(lock);						      \
-    if (atomic_compare_and_exchange_bool_acq (__futex, 1, 0) != 0)	      \
+    if (__builtin_expect (atomic_compare_and_exchange_val_acq (__futex, 1, 0),\
+			  0) != 0)					      \
       __lll_lock_wait (__futex);					      \
   })
 
 #define lll_mutex_cond_lock(lock) \
   (void) ({								      \
     int *__futex = &(lock);						      \
-    if (atomic_compare_and_exchange_bool_acq (__futex, 2, 0) != 0)	      \
+    if (__builtin_expect (atomic_compare_and_exchange_val_acq (__futex, 2, 0),\
+			  0) != 0)					      \
       __lll_lock_wait (__futex);					      \
   })
 
 extern int __lll_timedlock_wait
-	(int *futex, int val, const struct timespec *) attribute_hidden;
+  (int *futex, const struct timespec *) attribute_hidden;
 
 #define lll_mutex_timedlock(lock, abstime) \
-  (void) ({								      \
+  ({									      \
     int *__futex = &(lock);						      \
-    if (atomic_compare_and_exchange_bool_acq (__futex, 1, 0) != 0)	      \
-      __lll_timedlock_wait (__futex, abstime);				      \
+    int __val = 0;							      \
+    if (__builtin_expect (atomic_compare_and_exchange_val_acq (__futex, 1, 0),\
+			  0) != 0)					      \
+      __val = __lll_timedlock_wait (__futex, abstime);			      \
+    __val;								      \
   })
 
 #define lll_mutex_unlock(lock) \
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/libc-lowlevellock.c b/nptl/sysdeps/unix/sysv/linux/s390/libc-lowlevellock.c
deleted file mode 100644
index 085ee30..0000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/libc-lowlevellock.c
+++ /dev/null
@@ -1,41 +0,0 @@
-/* Copyright (C) 2003 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
-
-   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 <errno.h>
-#include <sysdep.h>
-#include <lowlevellock.h>
-#include <sys/time.h>
-
-
-void
-___lll_lock (futex, newval)
-     int *futex;
-     int newval;
-{
-  do
-    {
-      int oldval;
-
-      lll_futex_wait (futex, newval);
-      lll_compare_and_swap (futex, oldval, newval, "lr %2,%1; ahi %2,-1");
-    }
-  while (newval != 0);
-
-  *futex = -1;
-}
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/libc-lowlevelmutex.c b/nptl/sysdeps/unix/sysv/linux/s390/libc-lowlevelmutex.c
deleted file mode 100644
index 38f11ba..0000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/libc-lowlevelmutex.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/* Copyright (C) 2003 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
-
-   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.  */
-
-/* No difference to lowlevelmutex.c  */
-#include "lowlevelmutex.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.c b/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.c
deleted file mode 100644
index 37d8857..0000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/* Copyright (C) 2003 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
-
-   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 <errno.h>
-#include <sysdep.h>
-#include <lowlevellock.h>
-#include <sys/time.h>
-
-
-void
-___lll_lock (futex, newval)
-     int *futex;
-     int newval;
-{
-  do
-    {
-      int oldval;
-
-      lll_futex_wait (futex, newval);
-      lll_compare_and_swap (futex, oldval, newval, "lr %2,%1; ahi %2,-1");
-    }
-  while (newval != 0);
-
-  *futex = -1;
-}
-
-
-int
-lll_unlock_wake_cb (futex)
-     int *futex;
-{
-  int oldval;
-  int newval;
-
-  lll_compare_and_swap (futex, oldval, newval, "lr %2,%1; ahi %2,1");
-  if (oldval < 0)
-    lll_futex_wake (futex, 1);
-  return 0;
-}
-
-
-int
-___lll_timedwait_tid (ptid, abstime)
-     int *ptid;
-     const struct timespec *abstime;
-{
-  int tid;
-
-  if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000)
-    return EINVAL;
-
-  /* Repeat until thread terminated.  */
-  while ((tid = *ptid) != 0)
-    {
-      /* Get current time.  */
-      struct timeval tv;
-      __gettimeofday (&tv, NULL);
-
-      /* Determine relative timeout.  */
-      struct timespec rt;
-      rt.tv_sec = abstime->tv_sec - tv.tv_sec;
-      rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000;
-      if (rt.tv_nsec < 0)
-	{
-	  rt.tv_nsec += 1000000000;
-	  rt.tv_sec--;
-	}
-      /* Already timed out?  */
-      if (rt.tv_sec < 0)
-	return ETIMEDOUT;
-
-      /* Wait until thread terminates.  */
-      int err = lll_futex_timed_wait (ptid, tid, &rt);
-
-      /* Woken due to timeout?  */
-      if (err == -ETIMEDOUT)
-	/* Yes.  */
-	return ETIMEDOUT;
-    }
-
-  return 0;
-}
-
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h
index a51826a..5751206 100644
--- a/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h
@@ -23,6 +23,7 @@
 #include <time.h>
 #include <sys/param.h>
 #include <bits/pthreadtypes.h>
+#include <atomic.h>
 
 #define SYS_futex		238
 #define FUTEX_WAIT		0
@@ -126,19 +127,14 @@ __lll_mutex_trylock (int *futex)
 #define lll_mutex_trylock(futex) __lll_mutex_trylock (&(futex))
 
 
-extern void ___lll_mutex_lock (int *, int) attribute_hidden;
-
+extern void __lll_lock_wait (int *futex) attribute_hidden;
 
 static inline void
 __attribute__ ((always_inline))
 __lll_mutex_lock (int *futex)
 {
-  int oldval;
-  int newval;
-
-  lll_compare_and_swap (futex, oldval, newval, "lr %2,%1; ahi %2,1");
-  if (oldval > 0)
-    ___lll_mutex_lock (futex, newval);
+  if (atomic_compare_and_exchange_bool_acq (futex, 1, 0) != 0)
+    __lll_lock_wait (futex);
 }
 #define lll_mutex_lock(futex) __lll_mutex_lock (&(futex))
 
@@ -146,32 +142,21 @@ static inline void
 __attribute__ ((always_inline))
 __lll_mutex_cond_lock (int *futex)
 {
-  int oldval;
-  int newval;
-
-  lll_compare_and_swap (futex, oldval, newval, "lr %2,%1; ahi %2,2");
-  if (oldval > 0)
-    ___lll_mutex_lock (futex, newval);
+  if (atomic_compare_and_exchange_bool_acq (futex, 2, 0) != 0)
+    __lll_lock_wait (futex);
 }
 #define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex))
 
-
-extern int ___lll_mutex_timedlock (int *, const struct timespec *, int)
-  attribute_hidden;
-
+extern int __lll_timedlock_wait
+  (int *futex, const struct timespec *) attribute_hidden;
 
 static inline int
 __attribute__ ((always_inline))
 __lll_mutex_timedlock (int *futex, const struct timespec *abstime)
 {
-  int oldval;
-  int newval;
   int result = 0;
-
-  lll_compare_and_swap (futex, oldval, newval, "lr %2,%1; ahi %2,1");
-  if (oldval > 0)
-    result = ___lll_mutex_timedlock (futex, abstime, newval);
-
+  if (atomic_compare_and_exchange_bool_acq (futex, 1, 0) != 0)
+    result = __lll_timedlock_wait (futex, abstime);
   return result;
 }
 #define lll_mutex_timedlock(futex, abstime) \
@@ -208,15 +193,19 @@ __lll_mutex_unlock_force (int *futex)
 
 
 /* We have a separate internal lock implementation which is not tied
-   to binary compatibility.  */
+   to binary compatibility.  We can use the lll_mutex_*.  */
 
 /* Type for lock object.  */
 typedef int lll_lock_t;
 
 /* Initializers for lock.  */
-#define LLL_LOCK_INITIALIZER		(1)
-#define LLL_LOCK_INITIALIZER_LOCKED	(0)
+#define LLL_LOCK_INITIALIZER		(0)
+#define LLL_LOCK_INITIALIZER_LOCKED	(1)
 
+#define lll_trylock(futex)      lll_mutex_trylock (futex)
+#define lll_lock(futex)         lll_mutex_lock (futex)
+#define lll_unlock(futex)       lll_mutex_unlock (futex)
+#define lll_islocked(futex)     lll_mutex_islocked (futex)
 
 extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
 
@@ -226,54 +215,6 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
    <0  -  taken by more users */
 
 
-static inline int
-__attribute__ ((always_inline))
-__lll_trylock (int *futex)
-{
-  unsigned int old;
-
-  __asm __volatile ("cs %0,%3,%1"
-		    : "=d" (old), "=Q" (*futex)
-		    : "0" (1), "d" (0), "m" (*futex) : "cc" );
-  return old != 1;
-}
-#define lll_trylock(futex) __lll_trylock (&(futex))
-
-
-extern void ___lll_lock (int *, int) attribute_hidden;
-
-static inline void
-__attribute__ ((always_inline))
-__lll_lock (int *futex)
-{
-  int oldval;
-  int newval;
-
-  lll_compare_and_swap (futex, oldval, newval, "lr %2,%1; ahi %2,-1");
-  if (newval < 0)
-    ___lll_lock (futex, newval);
-}
-#define lll_lock(futex) __lll_lock (&(futex))
-
-
-static inline void
-__attribute__ ((always_inline))
-__lll_unlock (int *futex)
-{
-  int oldval;
-  int newval;
-
-  lll_compare_and_swap (futex, oldval, newval, "lhi %2,1");
-  if (oldval < 0)
-    lll_futex_wake (futex, 1);
-}
-#define lll_unlock(futex) __lll_unlock(&(futex))
-
-
-#define lll_islocked(futex) \
-  (futex != 1)
-
-
 /* The kernel notifies a process with uses CLONE_CLEARTID via futex
    wakeup when the clone terminates.  The memory location contains the
    thread ID while the clone is running and is reset to zero
@@ -289,20 +230,16 @@ __lll_wait_tid (int *ptid)
 }
 #define lll_wait_tid(tid) __lll_wait_tid(&(tid))
 
-
-extern int ___lll_timedwait_tid (int *, const struct timespec *)
+extern int __lll_timedwait_tid (int *, const struct timespec *)
      attribute_hidden;
-static inline int
-__attribute__ ((always_inline))
-__lll_timedwait_tid (int *ptid, const struct timespec *abstime)
-{
-  if (*ptid == 0)
-    return 0;
-
-  return ___lll_timedwait_tid (ptid, abstime);
-}
-#define lll_timedwait_tid(tid, abstime) __lll_timedwait_tid (&(tid), abstime)
 
+#define lll_timedwait_tid(tid, abstime) \
+  ({									      \
+    int __res = 0;							      \
+    if ((tid) != 0)							      \
+      __res = __lll_timedwait_tid (&(tid), (abstime));			      \
+    __res;								      \
+  })
 
 /* Conditional variable handling.  */
 
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/lowlevelmutex.c b/nptl/sysdeps/unix/sysv/linux/s390/lowlevelmutex.c
deleted file mode 100644
index d61ebf9..0000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/lowlevelmutex.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/* Copyright (C) 2003 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
-
-   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 <errno.h>
-#include <sysdep.h>
-#include <lowlevellock.h>
-
-
-void
-___lll_mutex_lock (futex, newval)
-     int *futex;
-     int newval;
-{
-  int oldval;
-
-  do
-    {
-      lll_futex_wait (futex, newval);
-      lll_compare_and_swap (futex, oldval, newval, "lr %2,%1; ahi %2,1");
-    }
-  while (oldval != 0);
-
-  *futex = 2;
-}
-
-
-int
-___lll_mutex_timedlock (futex, abstime, newval)
-     int *futex;
-     const struct timespec *abstime;
-     int newval;
-{
-  /* Reject invalid timeouts.  */
-  if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000)
-    return EINVAL;
-
-  int oldval;
-  do
-    {
-      /* Get the current time.  */
-      struct timeval tv;
-      __gettimeofday (&tv, NULL);
-
-      /* Compute relative timeout.  */
-      struct timespec rt;
-      rt.tv_sec = abstime->tv_sec - tv.tv_sec;
-      rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000;
-      if (rt.tv_nsec < 0)
-	{
-	  rt.tv_nsec += 1000000000;
-	  --rt.tv_sec;
-	}
-      /* Already timed out?  */
-      if (rt.tv_sec < 0)
-	return ETIMEDOUT;
-
-      /* Wait.  */
-      int err = lll_futex_timed_wait (futex, newval, &rt);
-
-      /* If timed out return with an appropriate error.  */
-      if (err == -ETIMEDOUT)
-	return ETIMEDOUT;
-
-      /* XXX oldval in undefined !!! */
-      lll_compare_and_swap (futex, oldval, newval, "lr %2,%1; ahi %2,1");
-    }
-  while (oldval != 0);
-
-  *futex = 2;
-
-  return 0;
-}
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/sem_post.c b/nptl/sysdeps/unix/sysv/linux/s390/sem_post.c
deleted file mode 100644
index b36ebdb..0000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/sem_post.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/* Copyright (C) 2003 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
-
-   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 <errno.h>
-#include <sysdep.h>
-#include <lowlevellock.h>
-#include <internaltypes.h>
-#include <semaphore.h>
-
-#include <shlib-compat.h>
-
-
-int
-__new_sem_post (sem_t *sem)
-{
-  int oldval;
-  int newval;
-  int err;
-
-  lll_compare_and_swap ((int *) sem, oldval, newval, "lr %2,%1; ahi %2,1");
-  err = lll_futex_wake ((int *) sem, newval);
-  if (err < 0)
-    {
-      __set_errno (-err);
-      return -1;
-    }
-  return 0;
-}
-versioned_symbol (libpthread, __new_sem_post, sem_post, GLIBC_2_1);
-#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
-strong_alias (__new_sem_post, __old_sem_post)
-compat_symbol (libpthread, __old_sem_post, sem_post, GLIBC_2_0);
-#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/sem_timedwait.c b/nptl/sysdeps/unix/sysv/linux/s390/sem_timedwait.c
deleted file mode 100644
index b1c57be..0000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/sem_timedwait.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/* Copyright (C) 2003 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
-
-   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 <errno.h>
-#include <sysdep.h>
-#include <lowlevellock.h>
-#include <internaltypes.h>
-#include <semaphore.h>
-
-#include <pthreadP.h>
-#include <shlib-compat.h>
-
-
-int
-sem_timedwait (sem, abstime)
-     sem_t *sem;
-     const struct timespec *abstime;
-{
-  /* First check for cancellation.  */
-  CANCELLATION_P (THREAD_SELF);
-
-  int *futex = (int *) sem;
-  int oldval;
-  int newval;
-  int err;
-
-  do
-    {
-      /* Atomically decrement semaphore counter if it is > 0.  */
-      lll_compare_and_swap (futex, oldval, newval,
-			    "ltr %2,%1; jnp 1f; ahi %2,-1");
-      /* oldval != newval if the semaphore count has been decremented.	*/
-      if (oldval != newval)
-	return 0;
-
-      /* Check for invalid timeout values.  */
-      if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000)
-	{
-	  __set_errno (EINVAL);
-	  return -1;
-	}
-
-      /* Get the current time.  */
-      struct timeval tv;
-      (void) __gettimeofday (&tv, NULL);
-
-      /* Compute the relative timeout.  */
-      struct timespec rt;
-      rt.tv_sec = abstime->tv_sec - tv.tv_sec;
-      rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000;
-      if (rt.tv_nsec < 0)
-	{
-	  rt.tv_nsec += 1000000000;
-	  --rt.tv_sec;
-	}
-      /* Already timed out.  */
-      if (rt.tv_sec < 0)
-	{
-	  __set_errno (ETIMEDOUT);
-	  return -1;
-	}
-
-      /* Enable asynchronous cancellation.  Required by the standard.  */
-      int oldtype = __pthread_enable_asynccancel ();
-
-      /* Do wait.  */
-      err = lll_futex_timed_wait (futex, 0, &rt);
-
-      /* Disable asynchronous cancellation.  */
-      __pthread_disable_asynccancel (oldtype);
-
-      /* Returned after timing out?  */
-      if (err == -ETIMEDOUT)
-	{
-	  __set_errno (ETIMEDOUT);
-	  return -1;
-	}
-    }
-  while (err == 0 || err == -EWOULDBLOCK);
-
-  __set_errno (-err);
-  return -1;
-}
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/sem_trywait.c b/nptl/sysdeps/unix/sysv/linux/s390/sem_trywait.c
deleted file mode 100644
index 3695ccd..0000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/sem_trywait.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/* Copyright (C) 2003 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
-
-   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 <errno.h>
-#include <sysdep.h>
-#include <lowlevellock.h>
-#include <internaltypes.h>
-#include <semaphore.h>
-
-#include <shlib-compat.h>
-
-
-int
-__new_sem_trywait (sem_t *sem)
-{
-  int oldval;
-  int newval;
-
-  /* Atomically decrement sem counter if it is > 0.  */
-  lll_compare_and_swap ((int *) sem, oldval, newval,
-			"ltr %2,%1; jnp 1f; ahi %2,-1");
-  /* oldval != newval if the semaphore count has been decremented.  */
-  if (oldval == newval)
-    {
-      __set_errno (EAGAIN);
-      return -1;
-    }
-  return 0;
-}
-versioned_symbol (libpthread, __new_sem_trywait, sem_trywait, GLIBC_2_1);
-#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
-strong_alias (__new_sem_trywait, __old_sem_trywait)
-compat_symbol (libpthread, __old_sem_trywait, sem_trywait, GLIBC_2_0);
-#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/sem_wait.c b/nptl/sysdeps/unix/sysv/linux/s390/sem_wait.c
deleted file mode 100644
index 2be1dbb..0000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/sem_wait.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/* Copyright (C) 2003 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
-
-   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 <errno.h>
-#include <sysdep.h>
-#include <lowlevellock.h>
-#include <internaltypes.h>
-#include <semaphore.h>
-
-#include <pthreadP.h>
-#include <shlib-compat.h>
-
-
-int
-__new_sem_wait (sem_t *sem)
-{
-  /* First check for cancellation.  */
-  CANCELLATION_P (THREAD_SELF);
-
-  int *futex = (int *) sem;
-  int err;
-
-  do
-    {
-      int oldval;
-      int newval;
-
-      /* Atomically decrement semaphore counter if it is > 0.  */
-      lll_compare_and_swap (futex, oldval, newval,
-			    "ltr %2,%1; jnp 1f; ahi %2,-1");
-
-      /* oldval != newval if the semaphore count has been decremented.	*/
-      if (oldval != newval)
-	return 0;
-
-      /* Enable asynchronous cancellation.  Required by the standard.  */
-      int oldtype = __pthread_enable_asynccancel ();
-
-      /* Do wait.  */
-      err = lll_futex_wait (futex, 0);
-
-      /* Disable asynchronous cancellation.  */
-      __pthread_disable_asynccancel (oldtype);
-    }
-  while (err == 0 || err == -EWOULDBLOCK);
-
-  __set_errno (-err);
-  return -1;
-}
-
-versioned_symbol (libpthread, __new_sem_wait, sem_wait, GLIBC_2_1);
-#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
-strong_alias (__new_sem_wait, __old_sem_wait)
-compat_symbol (libpthread, __old_sem_wait, sem_wait, GLIBC_2_0);
-#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h
index e8c3ebe..76ec431 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h
@@ -87,17 +87,17 @@ __lll_mutex_trylock (int *futex)
 #define lll_mutex_trylock(futex) __lll_mutex_trylock (&(futex))
 
 
-extern void __lll_lock_wait (int *futex, int val) attribute_hidden;
+extern void __lll_lock_wait (int *futex) attribute_hidden;
 
 
 static inline void
 __attribute__ ((always_inline))
 __lll_mutex_lock (int *futex)
 {
-  int val = atomic_exchange_and_add (futex, 1);
+  int val = atomic_compare_and_exchange_val_acq (futex, 1, 0);
 
   if (__builtin_expect (val != 0, 0))
-    __lll_lock_wait (futex, val);
+    __lll_lock_wait (futex);
 }
 #define lll_mutex_lock(futex) __lll_mutex_lock (&(futex))
 
@@ -106,18 +106,15 @@ static inline void
 __attribute__ ((always_inline))
 __lll_mutex_cond_lock (int *futex)
 {
-  int val = atomic_exchange_and_add (futex, 2);
+  int val = atomic_compare_and_exchange_val_acq (futex, 2, 0);
 
   if (__builtin_expect (val != 0, 0))
-    /* Note, the val + 1 is kind of ugly here.  __lll_lock_wait will add
-       1 again.  But we added 2 to the futex value so this is the right
-       value which will be passed to the kernel.  */
-    __lll_lock_wait (futex, val + 1);
+    __lll_lock_wait (futex);
 }
 #define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex))
 
 
-extern int __lll_timedlock_wait (int *futex, int val, const struct timespec *)
+extern int __lll_timedlock_wait (int *futex, const struct timespec *)
      attribute_hidden;
 
 
@@ -125,12 +122,11 @@ static inline int
 __attribute__ ((always_inline))
 __lll_mutex_timedlock (int *futex, const struct timespec *abstime)
 {
-  int val = atomic_exchange_and_add (futex, 1);
+  int val = atomic_compare_and_exchange_val_acq (futex, 1, 0);
   int result = 0;
-
+  
   if (__builtin_expect (val != 0, 0))
-    result = __lll_timedlock_wait (futex, val, abstime);
-
+    result = __lll_timedlock_wait (futex, abstime);
   return result;
 }
 #define lll_mutex_timedlock(futex, abstime) \
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/libc-lowlevelmutex.S b/nptl/sysdeps/unix/sysv/linux/x86_64/libc-lowlevelmutex.S
deleted file mode 100644
index e6dc867..0000000
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/libc-lowlevelmutex.S
+++ /dev/null
@@ -1,30 +0,0 @@
-/* Copyright (C) 2002, 2003 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.  */
-
-/* In libc.so we do not unconditionally use the lock prefix.  Only if
-   the application is using threads.  */
-#ifndef UP
-# define LOCK \
-	cmpl	$0, __libc_multiple_threads(%rip); 			      \
-	je	0f;							      \
-	lock;								      \
-0:
-#endif
-
-#include "lowlevelmutex.S"