Unbreak PNaCL build

Forgot to add a file...

TBR=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/634463002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24404 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/base/atomicops_internals_portable.h

@@ -0,0 +1,138 @@
+// Copyright 2012 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This file is an internal atomic implementation, use atomicops.h instead.
+
+#ifndef V8_BASE_ATOMICOPS_INTERNALS_PORTABLE_H_
+#define V8_BASE_ATOMICOPS_INTERNALS_PORTABLE_H_
+
+namespace v8 {
+namespace base {
+
+inline void MemoryBarrier() { __sync_synchronize(); }
+
+inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr,
+                                         Atomic32 old_value,
+                                         Atomic32 new_value) {
+  return __sync_val_compare_and_swap(ptr, old_value, new_value);
+}
+
+inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr,
+                                         Atomic32 new_value) {
+  return __sync_lock_test_and_set(ptr, new_value);
+}
+
+inline Atomic32 NoBarrier_AtomicIncrement(volatile Atomic32* ptr,
+                                          Atomic32 increment) {
+  return __sync_add_and_fetch(ptr, increment);
+}
+
+inline Atomic32 Barrier_AtomicIncrement(volatile Atomic32* ptr,
+                                        Atomic32 increment) {
+  return __sync_add_and_fetch(ptr, increment);
+}
+
+inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value, Atomic32 new_value) {
+  return __sync_val_compare_and_swap(ptr, old_value, new_value);
+}
+
+inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value, Atomic32 new_value) {
+  return __sync_val_compare_and_swap(ptr, old_value, new_value);
+}
+
+inline void NoBarrier_Store(volatile Atomic8* ptr, Atomic8 value) {
+  __sync_lock_test_and_set(ptr, value);
+}
+
+inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) {
+  __sync_lock_test_and_set(ptr, value);
+}
+
+inline void Acquire_Store(volatile Atomic32* ptr, Atomic32 value) {
+  __sync_lock_test_and_set(ptr, value);
+}
+
+inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) {
+  __sync_lock_test_and_set(ptr, value);
+}
+
+inline Atomic8 NoBarrier_Load(volatile const Atomic8* ptr) {
+  return __sync_add_and_fetch(ptr, 0);
+}
+
+inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) {
+  return __sync_add_and_fetch(ptr, 0);
+}
+
+inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) {
+  return __sync_add_and_fetch(ptr, 0);
+}
+
+inline Atomic32 Release_Load(volatile const Atomic32* ptr) {
+  return __sync_add_and_fetch(ptr, 0);
+}
+
+// 64-bit versions of the operations.
+// See the 32-bit versions for comments.
+
+inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
+                                         Atomic64 old_value,
+                                         Atomic64 new_value) {
+  return __sync_val_compare_and_swap(ptr, old_value, new_value);
+}
+
+inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr,
+                                         Atomic64 new_value) {
+  return __sync_lock_test_and_set(ptr, new_value);
+}
+
+inline Atomic64 NoBarrier_AtomicIncrement(volatile Atomic64* ptr,
+                                          Atomic64 increment) {
+  return __sync_add_and_fetch(ptr, increment);
+}
+
+inline Atomic64 Barrier_AtomicIncrement(volatile Atomic64* ptr,
+                                        Atomic64 increment) {
+  return __sync_add_and_fetch(ptr, increment);
+}
+
+inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value, Atomic64 new_value) {
+  return __sync_val_compare_and_swap(ptr, old_value, new_value);
+}
+
+inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value, Atomic64 new_value) {
+  return __sync_val_compare_and_swap(ptr, old_value, new_value);
+}
+
+inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
+  __sync_lock_test_and_set(ptr, value);
+}
+
+inline void Acquire_Store(volatile Atomic64* ptr, Atomic64 value) {
+  __sync_lock_test_and_set(ptr, value);
+}
+
+inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) {
+  __sync_lock_test_and_set(ptr, value);
+}
+
+inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
+  return __sync_add_and_fetch(ptr, 0);
+}
+
+inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) {
+  return __sync_add_and_fetch(ptr, 0);
+}
+
+inline Atomic64 Release_Load(volatile const Atomic64* ptr) {
+  return __sync_add_and_fetch(ptr, 0);
+}
+}
+}  // namespace v8::base
+
+#endif  // V8_BASE_ATOMICOPS_INTERNALS_PORTABLE_H_