Merge branch 'rickard/atomics-api/OTP-9014' and OTP_R14B04

Conflicts:
	erts/aclocal.m4
	erts/emulator/beam/erl_db.c
	erts/emulator/sys/win32/sys.c
	erts/include/internal/ethread_header_config.h.in

1 files changed, 10 insertions, 7 deletions

diff --git a/erts/include/internal/sparc32/rwlock.h b/erts/include/internal/sparc32/rwlock.h
index 465ec96866..8b6f2e9c57 100644
--- a/erts/include/internal/sparc32/rwlock.h
+++ b/erts/include/internal/sparc32/rwlock.h
@@ -1,7 +1,7 @@
 /* 
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2005-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -24,6 +24,9 @@
 #ifndef ETHREAD_SPARC32_RWLOCK_H
 #define ETHREAD_SPARC32_RWLOCK_H
 
+#define ETHR_HAVE_NATIVE_RWSPINLOCKS 1
+#define ETHR_NATIVE_RWSPINLOCK_IMPL "ethread"
+
 /* Unlocked if zero, read-locked if positive, write-locked if -1. */
 typedef struct {
     volatile int lock;
@@ -42,7 +45,7 @@ ethr_native_read_unlock(ethr_native_rwlock_t *lock)
 {
     unsigned int old, new;
 
-    __asm__ __volatile__("membar #LoadLoad|#StoreLoad");
+    ETHR_MEMBAR(ETHR_LoadLoad|ETHR_StoreLoad);
     do {
 	old = lock->lock;
 	new = old-1;
@@ -70,7 +73,7 @@ ethr_native_read_trylock(ethr_native_rwlock_t *lock)
 	    : "r"(old), "r"(&lock->lock), "0"(new)
 	    : "memory");
     } while (__builtin_expect(old != new, 0));
-    __asm__ __volatile__("membar #StoreLoad|#StoreStore");
+    ETHR_MEMBAR(ETHR_StoreLoad|ETHR_StoreStore);
     return 1;
 }
 
@@ -87,7 +90,7 @@ ethr_native_read_lock(ethr_native_rwlock_t *lock)
 	if (__builtin_expect(ethr_native_read_trylock(lock) != 0, 1))
 	    break;
 	do {
-	    __asm__ __volatile__("membar #LoadLoad");
+	    ETHR_MEMBAR(ETHR_LoadLoad);
 	} while (ethr_native_read_is_locked(lock));
    }
 }
@@ -95,7 +98,7 @@ ethr_native_read_lock(ethr_native_rwlock_t *lock)
 static ETHR_INLINE void
 ethr_native_write_unlock(ethr_native_rwlock_t *lock)
 {
-    __asm__ __volatile__("membar #LoadStore|#StoreStore");
+    ETHR_MEMBAR(ETHR_LoadStore|ETHR_StoreStore);
     lock->lock = 0;
 }
 
@@ -115,7 +118,7 @@ ethr_native_write_trylock(ethr_native_rwlock_t *lock)
 	    : "r"(old), "r"(&lock->lock), "0"(new)
 	    : "memory");
     } while (__builtin_expect(old != new, 0));
-    __asm__ __volatile__("membar #StoreLoad|#StoreStore");
+    ETHR_MEMBAR(ETHR_StoreLoad|ETHR_StoreStore);
     return 1;
 }
 
@@ -132,7 +135,7 @@ ethr_native_write_lock(ethr_native_rwlock_t *lock)
 	if (__builtin_expect(ethr_native_write_trylock(lock) != 0, 1))
 	    break;
 	do {
-	    __asm__ __volatile__("membar #LoadLoad");
+	    ETHR_MEMBAR(ETHR_LoadLoad);
 	} while (ethr_native_write_is_locked(lock));
    }
 }