2.5-18.1

1 files changed, 84 insertions, 1 deletions

diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h
index e13358ffef..8df997a262 100644
--- a/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
 
@@ -31,6 +31,11 @@
 #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
 
 /* Delay in spinlock loop.  */
 #define BUSY_WAIT_NOP          asm ("hint @pause")
@@ -53,6 +58,15 @@
    _r10 == -1 ? -_retval : _retval;					\
 })
 
+#define lll_robust_mutex_dead(futexv)					\
+do									\
+  {									\
+    int *__futexp = &(futexv);						\
+    atomic_or (__futexp, FUTEX_OWNER_DIED);				\
+    DO_INLINE_SYSCALL(futex, 3, (long) __futexp, FUTEX_WAKE, 1);	\
+  }									\
+while (0)
+
 /* Returns non-zero if error happened, zero if success.  */
 #define lll_futex_requeue(ftx, nr_wake, nr_move, mutex, val)		     \
 ({									     \
@@ -62,18 +76,34 @@
    _r10 == -1;								     \
 })
 
+/* Returns non-zero if error happened, zero if success.  */
+#define lll_futex_wake_unlock(ftx, nr_wake, nr_wake2, ftx2)		     \
+({									     \
+   DO_INLINE_SYSCALL(futex, 6, (long) (ftx), FUTEX_WAKE_OP,		     \
+		     (int) (nr_wake), (int) (nr_wake2), (long) (ftx2),	     \
+		     FUTEX_OP_CLEAR_WAKE_IF_GT_ONE);			     \
+   _r10 == -1;								     \
+})
+
 
 #define __lll_mutex_trylock(futex) \
   (atomic_compare_and_exchange_val_acq (futex, 1, 0) != 0)
 #define lll_mutex_trylock(futex) __lll_mutex_trylock (&(futex))
 
 
+#define __lll_robust_mutex_trylock(futex, id) \
+  (atomic_compare_and_exchange_val_acq (futex, id, 0) != 0)
+#define lll_robust_mutex_trylock(futex, id) \
+  __lll_robust_mutex_trylock (&(futex), id)
+
+
 #define __lll_mutex_cond_trylock(futex) \
   (atomic_compare_and_exchange_val_acq (futex, 2, 0) != 0)
 #define lll_mutex_cond_trylock(futex) __lll_mutex_cond_trylock (&(futex))
 
 
 extern void __lll_lock_wait (int *futex) attribute_hidden;
+extern int __lll_robust_lock_wait (int *futex) attribute_hidden;
 
 
 #define __lll_mutex_lock(futex)						\
@@ -85,6 +115,18 @@ extern void __lll_lock_wait (int *futex) attribute_hidden;
 #define lll_mutex_lock(futex) __lll_mutex_lock (&(futex))
 
 
+#define __lll_robust_mutex_lock(futex, id)				\
+  ({									\
+    int *__futex = (futex);						\
+    int __val = 0;							\
+									\
+    if (atomic_compare_and_exchange_bool_acq (__futex, id, 0) != 0)	\
+      __val = __lll_robust_lock_wait (__futex);				\
+    __val;								\
+  })
+#define lll_robust_mutex_lock(futex, id) __lll_robust_mutex_lock (&(futex), id)
+
+
 #define __lll_mutex_cond_lock(futex)					\
   ((void) ({								\
     int *__futex = (futex);						\
@@ -94,8 +136,24 @@ extern void __lll_lock_wait (int *futex) attribute_hidden;
 #define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex))
 
 
+#define __lll_robust_mutex_cond_lock(futex, id)				\
+  ({									\
+    int *__futex = (futex);						\
+    int __val = 0;							\
+    int __id = (id) | FUTEX_WAITERS;					\
+									\
+    if (atomic_compare_and_exchange_bool_acq (__futex, __id, 0) != 0)	\
+      __val = __lll_robust_lock_wait (__futex);				\
+    __val;								\
+  })
+#define lll_robust_mutex_cond_lock(futex, id) \
+  __lll_robust_mutex_cond_lock (&(futex), id)
+
+
 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(futex, abstime)				\
@@ -111,6 +169,19 @@ extern int __lll_timedlock_wait (int *futex, const struct timespec *)
   __lll_mutex_timedlock (&(futex), abstime)
 
 
+#define __lll_robust_mutex_timedlock(futex, abstime, id)		\
+  ({									\
+    int *__futex = (futex);						\
+    int __val = 0;							\
+									\
+    if (atomic_compare_and_exchange_bool_acq (__futex, id, 0) != 0)	\
+      __val = __lll_robust_timedlock_wait (__futex, abstime);		\
+    __val;								\
+  })
+#define lll_robust_mutex_timedlock(futex, abstime, id) \
+  __lll_robust_mutex_timedlock (&(futex), abstime, id)
+
+
 #define __lll_mutex_unlock(futex)			\
   ((void) ({						\
     int *__futex = (futex);				\
@@ -123,6 +194,18 @@ extern int __lll_timedlock_wait (int *futex, const struct timespec *)
   __lll_mutex_unlock(&(futex))
 
 
+#define __lll_robust_mutex_unlock(futex)		\
+  ((void) ({						\
+    int *__futex = (futex);				\
+    int __val = atomic_exchange_rel (__futex, 0);	\
+							\
+    if (__builtin_expect (__val & FUTEX_WAITERS, 0))	\
+      lll_futex_wake (__futex, 1);			\
+  }))
+#define lll_robust_mutex_unlock(futex) \
+  __lll_robust_mutex_unlock(&(futex))
+
+
 #define __lll_mutex_unlock_force(futex)		\
   ((void) ({					\
     int *__futex = (futex);			\