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authorGravatar xiaofeng@google.com <xiaofeng@google.com@630680e5-0e50-0410-840e-4b1c322b438d>2013-07-25 19:55:35 +0000
committerGravatar xiaofeng@google.com <xiaofeng@google.com@630680e5-0e50-0410-840e-4b1c322b438d>2013-07-25 19:55:35 +0000
commit4f68d92cfa26f5a478686a4d656740ee1688b38b (patch)
tree380023fd6968b5cf89ae6a447402d80beaa2aa29
parentc9f69500b7d8c616ab107ed0748ae8a3754eef0d (diff)
Add support for ThreadSanitizer atomicops API to protobuf - patch from glider@
-rw-r--r--src/google/protobuf/stubs/atomicops.h5
-rw-r--r--src/google/protobuf/stubs/atomicops_internals_tsan.h392
2 files changed, 396 insertions, 1 deletions
diff --git a/src/google/protobuf/stubs/atomicops.h b/src/google/protobuf/stubs/atomicops.h
index 8ece86b3..ab935b02 100644
--- a/src/google/protobuf/stubs/atomicops.h
+++ b/src/google/protobuf/stubs/atomicops.h
@@ -160,8 +160,11 @@ Atomic64 Release_Load(volatile const Atomic64* ptr);
#define GOOGLE_PROTOBUF_ATOMICOPS_ERROR \
#error "Atomic operations are not supported on your platform"
+// ThreadSanitizer, http://clang.llvm.org/docs/ThreadSanitizer.html.
+#if defined(THREAD_SANITIZER)
+#include <google/protobuf/stubs/atomicops_internals_tsan.h>
// MSVC.
-#if defined(_MSC_VER)
+#elif defined(_MSC_VER)
#if defined(GOOGLE_PROTOBUF_ARCH_IA32) || defined(GOOGLE_PROTOBUF_ARCH_X64)
#include <google/protobuf/stubs/atomicops_internals_x86_msvc.h>
#else
diff --git a/src/google/protobuf/stubs/atomicops_internals_tsan.h b/src/google/protobuf/stubs/atomicops_internals_tsan.h
new file mode 100644
index 00000000..ca492b01
--- /dev/null
+++ b/src/google/protobuf/stubs/atomicops_internals_tsan.h
@@ -0,0 +1,392 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2013 Google Inc. All rights reserved.
+// http://code.google.com/p/protobuf/
+//
+// 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 (http://clang.llvm.org/docs/ThreadSanitizer.html).
+// Use atomicops.h instead.
+
+#ifndef GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_TSAN_H_
+#define GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_TSAN_H_
+
+#define ATOMICOPS_COMPILER_BARRIER() __asm__ __volatile__("" : : : "memory")
+
+namespace google {
+namespace protobuf {
+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
+
+#if defined(__SIZEOF_INT128__) \
+ || (__clang_major__ * 100 + __clang_minor__ >= 302)
+typedef __int128 __tsan_atomic128;
+#define __TSAN_HAS_INT128 1
+#else
+typedef char __tsan_atomic128;
+#define __TSAN_HAS_INT128 0
+#endif
+
+typedef enum {
+ __tsan_memory_order_relaxed,
+ __tsan_memory_order_consume,
+ __tsan_memory_order_acquire,
+ __tsan_memory_order_release,
+ __tsan_memory_order_acq_rel,
+ __tsan_memory_order_seq_cst,
+} __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);
+__tsan_atomic128 __tsan_atomic128_load(const volatile __tsan_atomic128 *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);
+void __tsan_atomic128_store(volatile __tsan_atomic128 *a, __tsan_atomic128 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_atomic128 __tsan_atomic128_exchange(volatile __tsan_atomic128 *a,
+ __tsan_atomic128 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_atomic128 __tsan_atomic128_fetch_add(volatile __tsan_atomic128 *a,
+ __tsan_atomic128 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_atomic128 __tsan_atomic128_fetch_and(volatile __tsan_atomic128 *a,
+ __tsan_atomic128 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_atomic128 __tsan_atomic128_fetch_or(volatile __tsan_atomic128 *a,
+ __tsan_atomic128 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);
+__tsan_atomic128 __tsan_atomic128_fetch_xor(volatile __tsan_atomic128 *a,
+ __tsan_atomic128 v, __tsan_memory_order mo);
+
+__tsan_atomic8 __tsan_atomic8_fetch_nand(volatile __tsan_atomic8 *a,
+ __tsan_atomic8 v, __tsan_memory_order mo);
+__tsan_atomic16 __tsan_atomic16_fetch_nand(volatile __tsan_atomic16 *a,
+ __tsan_atomic16 v, __tsan_memory_order mo);
+__tsan_atomic32 __tsan_atomic32_fetch_nand(volatile __tsan_atomic32 *a,
+ __tsan_atomic32 v, __tsan_memory_order mo);
+__tsan_atomic64 __tsan_atomic64_fetch_nand(volatile __tsan_atomic64 *a,
+ __tsan_atomic64 v, __tsan_memory_order mo);
+__tsan_atomic128 __tsan_atomic128_fetch_nand(volatile __tsan_atomic128 *a,
+ __tsan_atomic128 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,
+ __tsan_memory_order fail_mo);
+int __tsan_atomic16_compare_exchange_weak(volatile __tsan_atomic16 *a,
+ __tsan_atomic16 *c, __tsan_atomic16 v, __tsan_memory_order mo,
+ __tsan_memory_order fail_mo);
+int __tsan_atomic32_compare_exchange_weak(volatile __tsan_atomic32 *a,
+ __tsan_atomic32 *c, __tsan_atomic32 v, __tsan_memory_order mo,
+ __tsan_memory_order fail_mo);
+int __tsan_atomic64_compare_exchange_weak(volatile __tsan_atomic64 *a,
+ __tsan_atomic64 *c, __tsan_atomic64 v, __tsan_memory_order mo,
+ __tsan_memory_order fail_mo);
+int __tsan_atomic128_compare_exchange_weak(volatile __tsan_atomic128 *a,
+ __tsan_atomic128 *c, __tsan_atomic128 v, __tsan_memory_order mo,
+ __tsan_memory_order fail_mo);
+
+int __tsan_atomic8_compare_exchange_strong(volatile __tsan_atomic8 *a,
+ __tsan_atomic8 *c, __tsan_atomic8 v, __tsan_memory_order mo,
+ __tsan_memory_order fail_mo);
+int __tsan_atomic16_compare_exchange_strong(volatile __tsan_atomic16 *a,
+ __tsan_atomic16 *c, __tsan_atomic16 v, __tsan_memory_order mo,
+ __tsan_memory_order fail_mo);
+int __tsan_atomic32_compare_exchange_strong(volatile __tsan_atomic32 *a,
+ __tsan_atomic32 *c, __tsan_atomic32 v, __tsan_memory_order mo,
+ __tsan_memory_order fail_mo);
+int __tsan_atomic64_compare_exchange_strong(volatile __tsan_atomic64 *a,
+ __tsan_atomic64 *c, __tsan_atomic64 v, __tsan_memory_order mo,
+ __tsan_memory_order fail_mo);
+int __tsan_atomic128_compare_exchange_strong(volatile __tsan_atomic128 *a,
+ __tsan_atomic128 *c, __tsan_atomic128 v, __tsan_memory_order mo,
+ __tsan_memory_order fail_mo);
+
+__tsan_atomic8 __tsan_atomic8_compare_exchange_val(
+ volatile __tsan_atomic8 *a, __tsan_atomic8 c, __tsan_atomic8 v,
+ __tsan_memory_order mo, __tsan_memory_order fail_mo);
+__tsan_atomic16 __tsan_atomic16_compare_exchange_val(
+ volatile __tsan_atomic16 *a, __tsan_atomic16 c, __tsan_atomic16 v,
+ __tsan_memory_order mo, __tsan_memory_order fail_mo);
+__tsan_atomic32 __tsan_atomic32_compare_exchange_val(
+ volatile __tsan_atomic32 *a, __tsan_atomic32 c, __tsan_atomic32 v,
+ __tsan_memory_order mo, __tsan_memory_order fail_mo);
+__tsan_atomic64 __tsan_atomic64_compare_exchange_val(
+ volatile __tsan_atomic64 *a, __tsan_atomic64 c, __tsan_atomic64 v,
+ __tsan_memory_order mo, __tsan_memory_order fail_mo);
+__tsan_atomic128 __tsan_atomic128_compare_exchange_val(
+ volatile __tsan_atomic128 *a, __tsan_atomic128 c, __tsan_atomic128 v,
+ __tsan_memory_order mo, __tsan_memory_order fail_mo);
+
+void __tsan_atomic_thread_fence(__tsan_memory_order mo);
+void __tsan_atomic_signal_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, __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, __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, __tsan_memory_order_relaxed);
+ 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,
+ Atomic64 new_value) {
+ Atomic64 cmp = old_value;
+ __tsan_atomic64_compare_exchange_strong(ptr, &cmp, new_value,
+ __tsan_memory_order_relaxed, __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, __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, __tsan_memory_order_relaxed);
+ return cmp;
+}
+
+inline void MemoryBarrier() {
+ __tsan_atomic_thread_fence(__tsan_memory_order_seq_cst);
+}
+
+} // namespace internal
+} // namespace protobuf
+} // namespace google
+
+#undef ATOMICOPS_COMPILER_BARRIER
+
+#endif // GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_TSAN_H_