(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

1 files changed, 19 insertions, 99 deletions

diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
index 0136b97595..2bee000730 100644
--- a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
 
@@ -13,7 +13,7 @@
    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
+   License along with the GNU C Libr	\ary; if not, write to the Free
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
@@ -33,11 +33,6 @@
 #define FUTEX_WAKE		1
 #define FUTEX_REQUEUE		3
 #define FUTEX_CMP_REQUEUE	4
-#define FUTEX_WAKE_OP		5
-#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE	((4 << 24) | 1)
-#define FUTEX_LOCK_PI		6
-#define FUTEX_UNLOCK_PI		7
-#define FUTEX_TRYLOCK_PI	8
 
 /* Initializer for compatibility lock.	*/
 #define LLL_MUTEX_LOCK_INITIALIZER (0)
@@ -72,17 +67,6 @@
     INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret;		      \
   })
 
-#define lll_robust_mutex_dead(futexv) \
-  do									      \
-    {									      \
-      INTERNAL_SYSCALL_DECL (__err);					      \
-      int *__futexp = &(futexv);					      \
-									      \
-      atomic_or (__futexp, FUTEX_OWNER_DIED);				      \
-      INTERNAL_SYSCALL (futex, __err, 4, __futexp, FUTEX_WAKE, 1, 0);	      \
-    }									      \
-  while (0)
-
 /* Returns non-zero if error happened, zero if success.  */
 #define lll_futex_requeue(futexp, nr_wake, nr_move, mutex, val) \
   ({									      \
@@ -95,43 +79,16 @@
     INTERNAL_SYSCALL_ERROR_P (__ret, __err);				      \
   })
 
-/* Returns non-zero if error happened, zero if success.  */
-#define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2) \
-  ({									      \
-    INTERNAL_SYSCALL_DECL (__err);					      \
-    long int __ret;							      \
-									      \
-    __ret = INTERNAL_SYSCALL (futex, __err, 6,				      \
-			      (futexp), FUTEX_WAKE_OP, (nr_wake),	      \
-			      (nr_wake2), (futexp2),			      \
-			      FUTEX_OP_CLEAR_WAKE_IF_GT_ONE);		      \
-    INTERNAL_SYSCALL_ERROR_P (__ret, __err);				      \
-  })
-
 #ifdef UP
 # define __lll_acq_instr	""
 # define __lll_rel_instr	""
 #else
 # define __lll_acq_instr	"isync"
-# ifdef _ARCH_PWR4
-/*
- * Newer powerpc64 processors support the new "light weight" sync (lwsync)
- * So if the build is using -mcpu=[power4,power5,power5+,970] we can
- * safely use lwsync.
- */
-#  define __lll_rel_instr	"lwsync"
-# else
-/*
- * Older powerpc32 processors don't support the new "light weight"
- * sync (lwsync).  So the only safe option is to use normal sync
- * for all powerpc32 applications.
- */
-#  define __lll_rel_instr	"sync"
-# endif
+# define __lll_rel_instr	"sync"
 #endif
 
-/* Set *futex to ID if it is 0, atomically.  Returns the old value */
-#define __lll_robust_trylock(futex, id) \
+/* Set *futex to 1 if it is 0, atomically.  Returns the old value */
+#define __lll_trylock(futex) \
   ({ int __val;								      \
      __asm __volatile ("1:	lwarx	%0,0,%2\n"			      \
 		       "	cmpwi	0,%0,0\n"			      \
@@ -140,26 +97,31 @@
 		       "	bne-	1b\n"				      \
 		       "2:	" __lll_acq_instr			      \
 		       : "=&r" (__val), "=m" (*futex)			      \
-		       : "r" (futex), "r" (id), "m" (*futex)		      \
+		       : "r" (futex), "r" (1), "m" (*futex)		      \
 		       : "cr0", "memory");				      \
      __val;								      \
   })
 
-#define lll_robust_mutex_trylock(lock, id) __lll_robust_trylock (&(lock), id)
-
-/* Set *futex to 1 if it is 0, atomically.  Returns the old value */
-#define __lll_trylock(futex) __lll_robust_trylock (futex, 1)
-
 #define lll_mutex_trylock(lock)	__lll_trylock (&(lock))
 
 /* Set *futex to 2 if it is 0, atomically.  Returns the old value */
-#define __lll_cond_trylock(futex) __lll_robust_trylock (futex, 2)
-
+#define __lll_cond_trylock(futex) \
+  ({ int __val;								      \
+     __asm __volatile ("1:	lwarx	%0,0,%2\n"			      \
+		       "	cmpwi	0,%0,0\n"			      \
+		       "	bne	2f\n"				      \
+		       "	stwcx.	%3,0,%2\n"			      \
+		       "	bne-	1b\n"				      \
+		       "2:	" __lll_acq_instr			      \
+		       : "=&r" (__val), "=m" (*futex)			      \
+		       : "r" (futex), "r" (2), "m" (*futex)		      \
+		       : "cr0", "memory");				      \
+     __val;								      \
+  })
 #define lll_mutex_cond_trylock(lock)	__lll_cond_trylock (&(lock))
 
 
 extern void __lll_lock_wait (int *futex) attribute_hidden;
-extern int __lll_robust_lock_wait (int *futex) attribute_hidden;
 
 #define lll_mutex_lock(lock) \
   (void) ({								      \
@@ -169,16 +131,6 @@ extern int __lll_robust_lock_wait (int *futex) attribute_hidden;
       __lll_lock_wait (__futex);					      \
   })
 
-#define lll_robust_mutex_lock(lock, id) \
-  ({									      \
-    int *__futex = &(lock);						      \
-    int __val = 0;							      \
-    if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id,  \
-								0), 0))	      \
-      __val = __lll_robust_lock_wait (__futex);				      \
-    __val;								      \
-  })
-
 #define lll_mutex_cond_lock(lock) \
   (void) ({								      \
     int *__futex = &(lock);						      \
@@ -187,22 +139,8 @@ extern int __lll_robust_lock_wait (int *futex) attribute_hidden;
       __lll_lock_wait (__futex);					      \
   })
 
-#define lll_robust_mutex_cond_lock(lock, id) \
-  ({									      \
-    int *__futex = &(lock);						      \
-    int __val = 0;							      \
-    int __id = id | FUTEX_WAITERS;					      \
-    if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, __id,\
-								0), 0))	      \
-      __val = __lll_robust_lock_wait (__futex);				      \
-    __val;								      \
-  })
-
-
 extern int __lll_timedlock_wait
   (int *futex, const struct timespec *) attribute_hidden;
-extern int __lll_robust_timedlock_wait
-  (int *futex, const struct timespec *) attribute_hidden;
 
 #define lll_mutex_timedlock(lock, abstime) \
   ({									      \
@@ -214,16 +152,6 @@ extern int __lll_robust_timedlock_wait
     __val;								      \
   })
 
-#define lll_robust_mutex_timedlock(lock, abstime, id) \
-  ({									      \
-    int *__futex = &(lock);						      \
-    int __val = 0;							      \
-    if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id,  \
-								0), 0))	      \
-      __val = __lll_robust_timedlock_wait (__futex, abstime);		      \
-    __val;								      \
-  })
-
 #define lll_mutex_unlock(lock) \
   ((void) ({								      \
     int *__futex = &(lock);						      \
@@ -232,14 +160,6 @@ extern int __lll_robust_timedlock_wait
       lll_futex_wake (__futex, 1);					      \
   }))
 
-#define lll_robust_mutex_unlock(lock) \
-  ((void) ({								      \
-    int *__futex = &(lock);						      \
-    int __val = atomic_exchange_rel (__futex, 0);			      \
-    if (__builtin_expect (__val & FUTEX_WAITERS, 0))			      \
-      lll_futex_wake (__futex, 1);					      \
-  }))
-
 #define lll_mutex_unlock_force(lock) \
   ((void) ({								      \
     int *__futex = &(lock);						      \