Add atomics implementation for ThreadSanitizer v2 (https://sites.google.com/a/chromium.org/dev/deve…

src/atomicops_internals_tsan.h

+// Copyright 2012 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+// This file is an internal atomic implementation for compiler-based
+// ThreadSanitizer. Use base/atomicops.h instead.
+
+#ifndef V8_ATOMICOPS_INTERNALS_TSAN_H_
+#define V8_ATOMICOPS_INTERNALS_TSAN_H_
+
+// This struct is not part of the public API of this module; clients may not
+// use it.  (However, it's exported via BASE_EXPORT because clients implicitly
+// do use it at link time by inlining these functions.)
+// Features of this x86.  Values may not be correct before main() is run,
+// but are set conservatively.
+struct AtomicOps_x86CPUFeatureStruct {
+  bool has_amd_lock_mb_bug;  // Processor has AMD memory-barrier bug; do lfence
+                             // after acquire compare-and-swap.
+  bool has_sse2;             // Processor has SSE2.
+};
+extern struct AtomicOps_x86CPUFeatureStruct
+    AtomicOps_Internalx86CPUFeatures;
+
+#define ATOMICOPS_COMPILER_BARRIER() __asm__ __volatile__("" : : : "memory")
+
+namespace v8 {
+namespace internal {
+
+#ifndef TSAN_INTERFACE_ATOMIC_H
+#define TSAN_INTERFACE_ATOMIC_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef char  __tsan_atomic8;
+typedef short __tsan_atomic16;  // NOLINT
+typedef int   __tsan_atomic32;
+typedef long  __tsan_atomic64;  // NOLINT
+
+typedef enum {
+  __tsan_memory_order_relaxed = (1 << 0) + 100500,
+  __tsan_memory_order_consume = (1 << 1) + 100500,
+  __tsan_memory_order_acquire = (1 << 2) + 100500,
+  __tsan_memory_order_release = (1 << 3) + 100500,
+  __tsan_memory_order_acq_rel = (1 << 4) + 100500,
+  __tsan_memory_order_seq_cst = (1 << 5) + 100500,
+} __tsan_memory_order;
+
+__tsan_atomic8 __tsan_atomic8_load(const volatile __tsan_atomic8* a,
+    __tsan_memory_order mo);
+__tsan_atomic16 __tsan_atomic16_load(const volatile __tsan_atomic16* a,
+    __tsan_memory_order mo);
+__tsan_atomic32 __tsan_atomic32_load(const volatile __tsan_atomic32* a,
+    __tsan_memory_order mo);
+__tsan_atomic64 __tsan_atomic64_load(const volatile __tsan_atomic64* a,
+    __tsan_memory_order mo);
+
+void __tsan_atomic8_store(volatile __tsan_atomic8* a, __tsan_atomic8 v,
+    __tsan_memory_order mo);
+void __tsan_atomic16_store(volatile __tsan_atomic16* a, __tsan_atomic16 v,
+    __tsan_memory_order mo);
+void __tsan_atomic32_store(volatile __tsan_atomic32* a, __tsan_atomic32 v,
+    __tsan_memory_order mo);
+void __tsan_atomic64_store(volatile __tsan_atomic64* a, __tsan_atomic64 v,
+    __tsan_memory_order mo);
+
+__tsan_atomic8 __tsan_atomic8_exchange(volatile __tsan_atomic8* a,
+    __tsan_atomic8 v, __tsan_memory_order mo);
+__tsan_atomic16 __tsan_atomic16_exchange(volatile __tsan_atomic16* a,
+    __tsan_atomic16 v, __tsan_memory_order mo);
+__tsan_atomic32 __tsan_atomic32_exchange(volatile __tsan_atomic32* a,
+    __tsan_atomic32 v, __tsan_memory_order mo);
+__tsan_atomic64 __tsan_atomic64_exchange(volatile __tsan_atomic64* a,
+    __tsan_atomic64 v, __tsan_memory_order mo);
+
+__tsan_atomic8 __tsan_atomic8_fetch_add(volatile __tsan_atomic8* a,
+    __tsan_atomic8 v, __tsan_memory_order mo);
+__tsan_atomic16 __tsan_atomic16_fetch_add(volatile __tsan_atomic16* a,
+    __tsan_atomic16 v, __tsan_memory_order mo);
+__tsan_atomic32 __tsan_atomic32_fetch_add(volatile __tsan_atomic32* a,
+    __tsan_atomic32 v, __tsan_memory_order mo);
+__tsan_atomic64 __tsan_atomic64_fetch_add(volatile __tsan_atomic64* a,
+    __tsan_atomic64 v, __tsan_memory_order mo);
+
+__tsan_atomic8 __tsan_atomic8_fetch_and(volatile __tsan_atomic8* a,
+    __tsan_atomic8 v, __tsan_memory_order mo);
+__tsan_atomic16 __tsan_atomic16_fetch_and(volatile __tsan_atomic16* a,
+    __tsan_atomic16 v, __tsan_memory_order mo);
+__tsan_atomic32 __tsan_atomic32_fetch_and(volatile __tsan_atomic32* a,
+    __tsan_atomic32 v, __tsan_memory_order mo);
+__tsan_atomic64 __tsan_atomic64_fetch_and(volatile __tsan_atomic64* a,
+    __tsan_atomic64 v, __tsan_memory_order mo);
+
+__tsan_atomic8 __tsan_atomic8_fetch_or(volatile __tsan_atomic8* a,
+    __tsan_atomic8 v, __tsan_memory_order mo);
+__tsan_atomic16 __tsan_atomic16_fetch_or(volatile __tsan_atomic16* a,
+    __tsan_atomic16 v, __tsan_memory_order mo);
+__tsan_atomic32 __tsan_atomic32_fetch_or(volatile __tsan_atomic32* a,
+    __tsan_atomic32 v, __tsan_memory_order mo);
+__tsan_atomic64 __tsan_atomic64_fetch_or(volatile __tsan_atomic64* a,
+    __tsan_atomic64 v, __tsan_memory_order mo);
+
+__tsan_atomic8 __tsan_atomic8_fetch_xor(volatile __tsan_atomic8* a,
+    __tsan_atomic8 v, __tsan_memory_order mo);
+__tsan_atomic16 __tsan_atomic16_fetch_xor(volatile __tsan_atomic16* a,
+    __tsan_atomic16 v, __tsan_memory_order mo);
+__tsan_atomic32 __tsan_atomic32_fetch_xor(volatile __tsan_atomic32* a,
+    __tsan_atomic32 v, __tsan_memory_order mo);
+__tsan_atomic64 __tsan_atomic64_fetch_xor(volatile __tsan_atomic64* a,
+    __tsan_atomic64 v, __tsan_memory_order mo);
+
+int __tsan_atomic8_compare_exchange_weak(volatile __tsan_atomic8* a,
+    __tsan_atomic8* c, __tsan_atomic8 v, __tsan_memory_order mo);
+int __tsan_atomic16_compare_exchange_weak(volatile __tsan_atomic16* a,
+    __tsan_atomic16* c, __tsan_atomic16 v, __tsan_memory_order mo);
+int __tsan_atomic32_compare_exchange_weak(volatile __tsan_atomic32* a,
+    __tsan_atomic32* c, __tsan_atomic32 v, __tsan_memory_order mo);
+int __tsan_atomic64_compare_exchange_weak(volatile __tsan_atomic64* a,
+    __tsan_atomic64* c, __tsan_atomic64 v, __tsan_memory_order mo);
+
+int __tsan_atomic8_compare_exchange_strong(volatile __tsan_atomic8* a,
+    __tsan_atomic8* c, __tsan_atomic8 v, __tsan_memory_order mo);
+int __tsan_atomic16_compare_exchange_strong(volatile __tsan_atomic16* a,
+    __tsan_atomic16* c, __tsan_atomic16 v, __tsan_memory_order mo);
+int __tsan_atomic32_compare_exchange_strong(volatile __tsan_atomic32* a,
+    __tsan_atomic32* c, __tsan_atomic32 v, __tsan_memory_order mo);
+int __tsan_atomic64_compare_exchange_strong(volatile __tsan_atomic64* a,
+    __tsan_atomic64* c, __tsan_atomic64 v, __tsan_memory_order mo);
+
+void __tsan_atomic_thread_fence(__tsan_memory_order mo);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // #ifndef TSAN_INTERFACE_ATOMIC_H
+
+inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr,
+                                         Atomic32 old_value,
+                                         Atomic32 new_value) {
+  Atomic32 cmp = old_value;
+  __tsan_atomic32_compare_exchange_strong(ptr, &cmp, new_value,
+                                          __tsan_memory_order_relaxed);
+  return cmp;
+}
+
+inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr,
+                                         Atomic32 new_value) {
+  return __tsan_atomic32_exchange(ptr, new_value,
+                                  __tsan_memory_order_relaxed);
+}
+
+inline Atomic32 Acquire_AtomicExchange(volatile Atomic32* ptr,
+                                       Atomic32 new_value) {
+  return __tsan_atomic32_exchange(ptr, new_value,
+                                  __tsan_memory_order_acquire);
+}
+
+inline Atomic32 Release_AtomicExchange(volatile Atomic32* ptr,
+                                       Atomic32 new_value) {
+  return __tsan_atomic32_exchange(ptr, new_value,
+                                  __tsan_memory_order_release);
+}
+
+inline Atomic32 NoBarrier_AtomicIncrement(volatile Atomic32* ptr,
+                                          Atomic32 increment) {
+  return increment + __tsan_atomic32_fetch_add(ptr, increment,
+                                               __tsan_memory_order_relaxed);
+}
+
+inline Atomic32 Barrier_AtomicIncrement(volatile Atomic32* ptr,
+                                        Atomic32 increment) {
+  return increment + __tsan_atomic32_fetch_add(ptr, increment,
+                                               __tsan_memory_order_acq_rel);
+}
+
+inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  Atomic32 cmp = old_value;
+  __tsan_atomic32_compare_exchange_strong(ptr, &cmp, new_value,
+                                          __tsan_memory_order_acquire);
+  return cmp;
+}
+
+inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  Atomic32 cmp = old_value;
+  __tsan_atomic32_compare_exchange_strong(ptr, &cmp, new_value,
+                                          __tsan_memory_order_release);
+  return cmp;
+}
+
+inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) {
+  __tsan_atomic32_store(ptr, value, __tsan_memory_order_relaxed);
+}
+
+inline void Acquire_Store(volatile Atomic32* ptr, Atomic32 value) {
+  __tsan_atomic32_store(ptr, value, __tsan_memory_order_relaxed);
+  __tsan_atomic_thread_fence(__tsan_memory_order_seq_cst);
+}
+
+inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) {
+  __tsan_atomic32_store(ptr, value, __tsan_memory_order_release);
+}
+
+inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) {
+  return __tsan_atomic32_load(ptr, __tsan_memory_order_relaxed);
+}
+
+inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) {
+  return __tsan_atomic32_load(ptr, __tsan_memory_order_acquire);
+}
+
+inline Atomic32 Release_Load(volatile const Atomic32* ptr) {
+  __tsan_atomic_thread_fence(__tsan_memory_order_seq_cst);
+  return __tsan_atomic32_load(ptr, __tsan_memory_order_relaxed);
+}
+
+inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
+                                      Atomic64 old_value,

[danno, 2012/11/13 21:28:58]

nit: indentation

+                                      Atomic64 new_value) {
+  Atomic64 cmp = old_value;
+  __tsan_atomic64_compare_exchange_strong(ptr, &cmp, new_value,
+                                          __tsan_memory_order_relaxed);
+  return cmp;
+}
+
+inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr,
+                                         Atomic64 new_value) {
+  return __tsan_atomic64_exchange(ptr, new_value, __tsan_memory_order_relaxed);
+}
+
+inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value) {
+  return __tsan_atomic64_exchange(ptr, new_value, __tsan_memory_order_acquire);
+}
+
+inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value) {
+  return __tsan_atomic64_exchange(ptr, new_value, __tsan_memory_order_release);
+}
+
+inline Atomic64 NoBarrier_AtomicIncrement(volatile Atomic64* ptr,
+                                          Atomic64 increment) {
+  return increment + __tsan_atomic64_fetch_add(ptr, increment,
+                                               __tsan_memory_order_relaxed);
+}
+
+inline Atomic64 Barrier_AtomicIncrement(volatile Atomic64* ptr,
+                                        Atomic64 increment) {
+  return increment + __tsan_atomic64_fetch_add(ptr, increment,
+                                               __tsan_memory_order_acq_rel);
+}
+
+inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
+  __tsan_atomic64_store(ptr, value, __tsan_memory_order_relaxed);
+}
+
+inline void Acquire_Store(volatile Atomic64* ptr, Atomic64 value) {
+  __tsan_atomic64_store(ptr, value, __tsan_memory_order_relaxed);
+  __tsan_atomic_thread_fence(__tsan_memory_order_seq_cst);
+}
+
+inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) {
+  __tsan_atomic64_store(ptr, value, __tsan_memory_order_release);
+}
+
+inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
+  return __tsan_atomic64_load(ptr, __tsan_memory_order_relaxed);
+}
+
+inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) {
+  return __tsan_atomic64_load(ptr, __tsan_memory_order_acquire);
+}
+
+inline Atomic64 Release_Load(volatile const Atomic64* ptr) {
+  __tsan_atomic_thread_fence(__tsan_memory_order_seq_cst);
+  return __tsan_atomic64_load(ptr, __tsan_memory_order_relaxed);
+}
+
+inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  Atomic64 cmp = old_value;
+  __tsan_atomic64_compare_exchange_strong(ptr, &cmp, new_value,
+                                          __tsan_memory_order_acquire);
+  return cmp;
+}
+
+inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  Atomic64 cmp = old_value;
+  __tsan_atomic64_compare_exchange_strong(ptr, &cmp, new_value,
+                                          __tsan_memory_order_release);
+  return cmp;
+}
+
+inline void MemoryBarrier() {
+  __tsan_atomic_thread_fence(__tsan_memory_order_seq_cst);
+}
+
+}  // namespace internal
+}  // namespace v8
+
+#undef ATOMICOPS_COMPILER_BARRIER
+
+#endif  // V8_ATOMICOPS_INTERNALS_TSAN_H_