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-rw-r--r--src/Makefile.am2
-rw-r--r--src/google/protobuf/stubs/atomicops.h73
-rw-r--r--src/google/protobuf/stubs/atomicops_internals_arm_gcc.h17
-rw-r--r--src/google/protobuf/stubs/atomicops_internals_atomicword_compat.h122
-rw-r--r--src/google/protobuf/stubs/atomicops_internals_macosx.h (renamed from src/google/protobuf/stubs/atomicops_internals_x86_macosx.h)106
-rw-r--r--src/google/protobuf/stubs/atomicops_internals_mips_gcc.h17
-rw-r--r--src/google/protobuf/stubs/atomicops_internals_x86_gcc.cc2
-rw-r--r--src/google/protobuf/stubs/atomicops_internals_x86_gcc.h17
-rw-r--r--src/google/protobuf/stubs/atomicops_internals_x86_msvc.cc17
-rw-r--r--src/google/protobuf/stubs/atomicops_internals_x86_msvc.h17
-rw-r--r--src/google/protobuf/stubs/platform_macros.h21
11 files changed, 250 insertions, 161 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index 1929c50e..db9e7af9 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -40,9 +40,9 @@ MAINTAINERCLEANFILES = \
nobase_include_HEADERS = \
google/protobuf/stubs/atomicops.h \
google/protobuf/stubs/atomicops_internals_arm_gcc.h \
+ google/protobuf/stubs/atomicops_internals_macosx.h \
google/protobuf/stubs/atomicops_internals_mips_gcc.h \
google/protobuf/stubs/atomicops_internals_x86_gcc.h \
- google/protobuf/stubs/atomicops_internals_x86_macosx.h \
google/protobuf/stubs/atomicops_internals_x86_msvc.h \
google/protobuf/stubs/common.h \
google/protobuf/stubs/platform_macros.h \
diff --git a/src/google/protobuf/stubs/atomicops.h b/src/google/protobuf/stubs/atomicops.h
index b20cc55d..d452a054 100644
--- a/src/google/protobuf/stubs/atomicops.h
+++ b/src/google/protobuf/stubs/atomicops.h
@@ -1,17 +1,20 @@
-// Copyright 2010 the V8 project authors. All rights reserved.
+// Protocol Buffers - Google's data interchange format
+// Copyright 2012 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.
+// 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.
+// 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.
+// 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
@@ -154,26 +157,48 @@ Atomic64 Release_Load(volatile const Atomic64* ptr);
} // namespace google
// Include our platform specific implementation.
-#if defined(_MSC_VER) && \
- (defined(GOOGLE_PROTOBUF_HOST_ARCH_IA32) || \
- defined(GOOGLE_PROTOBUF_HOST_ARCH_X64))
-#include "atomicops_internals_x86_msvc.h"
-#elif defined(__APPLE__) && \
- (defined(GOOGLE_PROTOBUF_HOST_ARCH_IA32) || \
- defined(GOOGLE_PROTOBUF_HOST_ARCH_X64))
-#include "atomicops_internals_x86_macosx.h"
-#elif defined(__GNUC__) && \
- (defined(GOOGLE_PROTOBUF_HOST_ARCH_IA32) || \
- defined(GOOGLE_PROTOBUF_HOST_ARCH_X64))
-#include "atomicops_internals_x86_gcc.h"
-#elif defined(__GNUC__) && defined(GOOGLE_PROTOBUF_HOST_ARCH_ARM)
-#include "atomicops_internals_arm_gcc.h"
-#elif defined(__GNUC__) && defined(GOOGLE_PROTOBUF_HOST_ARCH_MIPS)
-#include "atomicops_internals_mips_gcc.h"
-#else
+#define GOOGLE_PROTOBUF_ATOMICOPS_ERROR \
#error "Atomic operations are not supported on your platform"
+
+// MSVC.
+#if defined(_MSC_VER)
+#if defined(GOOGLE_PROTOBUF_HOST_ARCH_IA32) || \
+ defined(GOOGLE_PROTOBUF_HOST_ARCH_X64)
+#include <google/protobuf/stubs/atomicops_internals_x86_msvc.h>
+#else
+GOOGLE_PROTOBUF_ATOMICOPS_ERROR
+#endif
+
+// Apple.
+#elif defined(GOOGLE_PROTOBUF_OS_APPLE)
+#include <google/protobuf/stubs/atomicops_internals_macosx.h>
+
+// GCC.
+#elif defined(__GNUC__)
+#if defined(GOOGLE_PROTOBUF_HOST_ARCH_IA32) || \
+ defined(GOOGLE_PROTOBUF_HOST_ARCH_X64)
+#include <google/protobuf/stubs/atomicops_internals_x86_gcc.h>
+#elif defined(GOOGLE_PROTOBUF_HOST_ARCH_ARM)
+#include <google/protobuf/stubs/atomicops_internals_arm_gcc.h>
+#elif defined(GOOGLE_PROTOBUF_HOST_ARCH_MIPS)
+#include <google/protobuf/stubs/atomicops_internals_mips_gcc.h>
+#else
+GOOGLE_PROTOBUF_ATOMICOPS_ERROR
#endif
+// Unknown.
+#else
+GOOGLE_PROTOBUF_ATOMICOPS_ERROR
+#endif
+
+// On some platforms we need additional declarations to make AtomicWord
+// compatible with our other Atomic* types.
+#if defined(GOOGLE_PROTOBUF_OS_APPLE)
+#include <google/protobuf/stubs/atomicops_internals_atomicword_compat.h>
+#endif
+
+#undef GOOGLE_PROTOBUF_ATOMICOPS_ERROR
+
#endif // GOOGLE_PROTOBUF_NO_THREADSAFETY
#endif // GOOGLE_PROTOBUF_ATOMICOPS_H_
diff --git a/src/google/protobuf/stubs/atomicops_internals_arm_gcc.h b/src/google/protobuf/stubs/atomicops_internals_arm_gcc.h
index 3138590c..1f4dedc0 100644
--- a/src/google/protobuf/stubs/atomicops_internals_arm_gcc.h
+++ b/src/google/protobuf/stubs/atomicops_internals_arm_gcc.h
@@ -1,17 +1,20 @@
-// Copyright 2010 the V8 project authors. All rights reserved.
+// Protocol Buffers - Google's data interchange format
+// Copyright 2012 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.
+// 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.
+// 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.
+// 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
diff --git a/src/google/protobuf/stubs/atomicops_internals_atomicword_compat.h b/src/google/protobuf/stubs/atomicops_internals_atomicword_compat.h
new file mode 100644
index 00000000..8d9a726c
--- /dev/null
+++ b/src/google/protobuf/stubs/atomicops_internals_atomicword_compat.h
@@ -0,0 +1,122 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2012 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, use atomicops.h instead.
+
+#ifndef GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_ATOMICWORD_COMPAT_H_
+#define GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_ATOMICWORD_COMPAT_H_
+
+// AtomicWord is a synonym for intptr_t, and Atomic32 is a synonym for int32,
+// which in turn means int. On some LP32 platforms, intptr_t is an int, but
+// on others, it's a long. When AtomicWord and Atomic32 are based on different
+// fundamental types, their pointers are incompatible.
+//
+// This file defines function overloads to allow both AtomicWord and Atomic32
+// data to be used with this interface.
+//
+// On LP64 platforms, AtomicWord and Atomic64 are both always long,
+// so this problem doesn't occur.
+
+#if !defined(GOOGLE_PROTOBUF_HOST_ARCH_64_BIT)
+
+namespace google {
+namespace protobuf {
+namespace internal {
+
+inline AtomicWord NoBarrier_CompareAndSwap(volatile AtomicWord* ptr,
+ AtomicWord old_value,
+ AtomicWord new_value) {
+ return NoBarrier_CompareAndSwap(
+ reinterpret_cast<volatile Atomic32*>(ptr), old_value, new_value);
+}
+
+inline AtomicWord NoBarrier_AtomicExchange(volatile AtomicWord* ptr,
+ AtomicWord new_value) {
+ return NoBarrier_AtomicExchange(
+ reinterpret_cast<volatile Atomic32*>(ptr), new_value);
+}
+
+inline AtomicWord NoBarrier_AtomicIncrement(volatile AtomicWord* ptr,
+ AtomicWord increment) {
+ return NoBarrier_AtomicIncrement(
+ reinterpret_cast<volatile Atomic32*>(ptr), increment);
+}
+
+inline AtomicWord Barrier_AtomicIncrement(volatile AtomicWord* ptr,
+ AtomicWord increment) {
+ return Barrier_AtomicIncrement(
+ reinterpret_cast<volatile Atomic32*>(ptr), increment);
+}
+
+inline AtomicWord Acquire_CompareAndSwap(volatile AtomicWord* ptr,
+ AtomicWord old_value,
+ AtomicWord new_value) {
+ return Acquire_CompareAndSwap(
+ reinterpret_cast<volatile Atomic32*>(ptr), old_value, new_value);
+}
+
+inline AtomicWord Release_CompareAndSwap(volatile AtomicWord* ptr,
+ AtomicWord old_value,
+ AtomicWord new_value) {
+ return Release_CompareAndSwap(
+ reinterpret_cast<volatile Atomic32*>(ptr), old_value, new_value);
+}
+
+inline void NoBarrier_Store(volatile AtomicWord *ptr, AtomicWord value) {
+ NoBarrier_Store(reinterpret_cast<volatile Atomic32*>(ptr), value);
+}
+
+inline void Acquire_Store(volatile AtomicWord* ptr, AtomicWord value) {
+ return Acquire_Store(reinterpret_cast<volatile Atomic32*>(ptr), value);
+}
+
+inline void Release_Store(volatile AtomicWord* ptr, AtomicWord value) {
+ return Release_Store(reinterpret_cast<volatile Atomic32*>(ptr), value);
+}
+
+inline AtomicWord NoBarrier_Load(volatile const AtomicWord *ptr) {
+ return NoBarrier_Load(reinterpret_cast<volatile const Atomic32*>(ptr));
+}
+
+inline AtomicWord Acquire_Load(volatile const AtomicWord* ptr) {
+ return Acquire_Load(reinterpret_cast<volatile const Atomic32*>(ptr));
+}
+
+inline AtomicWord Release_Load(volatile const AtomicWord* ptr) {
+ return Release_Load(reinterpret_cast<volatile const Atomic32*>(ptr));
+}
+
+} // namespace internal
+} // namespace protobuf
+} // namespace google
+
+#endif // !defined(GOOGLE_PROTOBUF_HOST_ARCH_64_BIT)
+
+#endif // GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_ATOMICWORD_COMPAT_H_
diff --git a/src/google/protobuf/stubs/atomicops_internals_x86_macosx.h b/src/google/protobuf/stubs/atomicops_internals_macosx.h
index ff9b7bb9..9af6d636 100644
--- a/src/google/protobuf/stubs/atomicops_internals_x86_macosx.h
+++ b/src/google/protobuf/stubs/atomicops_internals_macosx.h
@@ -1,17 +1,20 @@
-// Copyright 2010 the V8 project authors. All rights reserved.
+// Protocol Buffers - Google's data interchange format
+// Copyright 2012 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.
+// 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.
+// 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.
+// 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
@@ -27,8 +30,8 @@
// This file is an internal atomic implementation, use atomicops.h instead.
-#ifndef GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_X86_MACOSX_H_
-#define GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_X86_MACOSX_H_
+#ifndef GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_MACOSX_H_
+#define GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_MACOSX_H_
#include <libkern/OSAtomic.h>
@@ -214,91 +217,8 @@ inline Atomic64 Release_Load(volatile const Atomic64* ptr) {
#endif // defined(__LP64__)
-// MacOS uses long for intptr_t, AtomicWord and Atomic32 are always different
-// on the Mac, even when they are the same size. We need to explicitly cast
-// from AtomicWord to Atomic32/64 to implement the AtomicWord interface.
-#ifdef __LP64__
-#define AtomicWordCastType Atomic64
-#else
-#define AtomicWordCastType Atomic32
-#endif
-
-inline AtomicWord NoBarrier_CompareAndSwap(volatile AtomicWord* ptr,
- AtomicWord old_value,
- AtomicWord new_value) {
- return NoBarrier_CompareAndSwap(
- reinterpret_cast<volatile AtomicWordCastType*>(ptr),
- old_value, new_value);
-}
-
-inline AtomicWord NoBarrier_AtomicExchange(volatile AtomicWord* ptr,
- AtomicWord new_value) {
- return NoBarrier_AtomicExchange(
- reinterpret_cast<volatile AtomicWordCastType*>(ptr), new_value);
-}
-
-inline AtomicWord NoBarrier_AtomicIncrement(volatile AtomicWord* ptr,
- AtomicWord increment) {
- return NoBarrier_AtomicIncrement(
- reinterpret_cast<volatile AtomicWordCastType*>(ptr), increment);
-}
-
-inline AtomicWord Barrier_AtomicIncrement(volatile AtomicWord* ptr,
- AtomicWord increment) {
- return Barrier_AtomicIncrement(
- reinterpret_cast<volatile AtomicWordCastType*>(ptr), increment);
-}
-
-inline AtomicWord Acquire_CompareAndSwap(volatile AtomicWord* ptr,
- AtomicWord old_value,
- AtomicWord new_value) {
- return Acquire_CompareAndSwap(
- reinterpret_cast<volatile AtomicWordCastType*>(ptr),
- old_value, new_value);
-}
-
-inline AtomicWord Release_CompareAndSwap(volatile AtomicWord* ptr,
- AtomicWord old_value,
- AtomicWord new_value) {
- return Release_CompareAndSwap(
- reinterpret_cast<volatile AtomicWordCastType*>(ptr),
- old_value, new_value);
-}
-
-inline void NoBarrier_Store(volatile AtomicWord* ptr, AtomicWord value) {
- NoBarrier_Store(
- reinterpret_cast<volatile AtomicWordCastType*>(ptr), value);
-}
-
-inline void Acquire_Store(volatile AtomicWord* ptr, AtomicWord value) {
- return Acquire_Store(
- reinterpret_cast<volatile AtomicWordCastType*>(ptr), value);
-}
-
-inline void Release_Store(volatile AtomicWord* ptr, AtomicWord value) {
- return Release_Store(
- reinterpret_cast<volatile AtomicWordCastType*>(ptr), value);
-}
-
-inline AtomicWord NoBarrier_Load(volatile const AtomicWord* ptr) {
- return NoBarrier_Load(
- reinterpret_cast<volatile const AtomicWordCastType*>(ptr));
-}
-
-inline AtomicWord Acquire_Load(volatile const AtomicWord* ptr) {
- return Acquire_Load(
- reinterpret_cast<volatile const AtomicWordCastType*>(ptr));
-}
-
-inline AtomicWord Release_Load(volatile const AtomicWord* ptr) {
- return Release_Load(
- reinterpret_cast<volatile const AtomicWordCastType*>(ptr));
-}
-
-#undef AtomicWordCastType
-
} // namespace internal
} // namespace protobuf
} // namespace google
-#endif // GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_X86_MACOSX_H_
+#endif // GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_MACOSX_H_
diff --git a/src/google/protobuf/stubs/atomicops_internals_mips_gcc.h b/src/google/protobuf/stubs/atomicops_internals_mips_gcc.h
index d4ce33db..dc468517 100644
--- a/src/google/protobuf/stubs/atomicops_internals_mips_gcc.h
+++ b/src/google/protobuf/stubs/atomicops_internals_mips_gcc.h
@@ -1,17 +1,20 @@
-// Copyright 2010 the V8 project authors. All rights reserved.
+// Protocol Buffers - Google's data interchange format
+// Copyright 2012 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.
+// 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.
+// 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.
+// 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
diff --git a/src/google/protobuf/stubs/atomicops_internals_x86_gcc.cc b/src/google/protobuf/stubs/atomicops_internals_x86_gcc.cc
index 937aa5ab..07748723 100644
--- a/src/google/protobuf/stubs/atomicops_internals_x86_gcc.cc
+++ b/src/google/protobuf/stubs/atomicops_internals_x86_gcc.cc
@@ -1,5 +1,5 @@
// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc. All rights reserved.
+// Copyright 2012 Google Inc. All rights reserved.
// http://code.google.com/p/protobuf/
//
// Redistribution and use in source and binary forms, with or without
diff --git a/src/google/protobuf/stubs/atomicops_internals_x86_gcc.h b/src/google/protobuf/stubs/atomicops_internals_x86_gcc.h
index fa25d1ea..5324dfbc 100644
--- a/src/google/protobuf/stubs/atomicops_internals_x86_gcc.h
+++ b/src/google/protobuf/stubs/atomicops_internals_x86_gcc.h
@@ -1,17 +1,20 @@
-// Copyright 2010 the V8 project authors. All rights reserved.
+// Protocol Buffers - Google's data interchange format
+// Copyright 2012 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.
+// 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.
+// 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.
+// 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
diff --git a/src/google/protobuf/stubs/atomicops_internals_x86_msvc.cc b/src/google/protobuf/stubs/atomicops_internals_x86_msvc.cc
index 4686bc44..8366a891 100644
--- a/src/google/protobuf/stubs/atomicops_internals_x86_msvc.cc
+++ b/src/google/protobuf/stubs/atomicops_internals_x86_msvc.cc
@@ -1,17 +1,20 @@
-// Copyright 2010 the V8 project authors. All rights reserved.
+// Protocol Buffers - Google's data interchange format
+// Copyright 2012 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.
+// 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.
+// 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.
+// 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
diff --git a/src/google/protobuf/stubs/atomicops_internals_x86_msvc.h b/src/google/protobuf/stubs/atomicops_internals_x86_msvc.h
index 9bb6cb0e..6f9869d1 100644
--- a/src/google/protobuf/stubs/atomicops_internals_x86_msvc.h
+++ b/src/google/protobuf/stubs/atomicops_internals_x86_msvc.h
@@ -1,17 +1,20 @@
-// Copyright 2010 the V8 project authors. All rights reserved.
+// Protocol Buffers - Google's data interchange format
+// Copyright 2012 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.
+// 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.
+// 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.
+// 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
diff --git a/src/google/protobuf/stubs/platform_macros.h b/src/google/protobuf/stubs/platform_macros.h
index 4e8ec5bf..0cda2b4c 100644
--- a/src/google/protobuf/stubs/platform_macros.h
+++ b/src/google/protobuf/stubs/platform_macros.h
@@ -1,17 +1,20 @@
-// Copyright 2011 the V8 authors. All rights reserved.
+// Protocol Buffers - Google's data interchange format
+// Copyright 2012 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.
+// 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.
+// 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.
+// 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
@@ -119,4 +122,8 @@
#define GOOGLE_PROTOBUF_USING_BSD_ABI
#endif
+#if defined(__APPLE__)
+#define GOOGLE_PROTOBUF_OS_APPLE
+#endif
+
#endif // GOOGLE_PROTOBUF_PLATFORM_MACROS_H_