OpenBSD: make it possible to build libbase.a.

This still needs a little hack. I had to run gyp_chromium this way:
CHROMIUM_GYP_FILE="base/base.gyp" build/gyp_chromium -DOS=openbsd \
    -Duse_gnome_keyring=0 -Duse_system_libevent=1

And then run "gmake base".

BUG=none

Review URL: http://codereview.chromium.org/6840023

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@81709 0039d316-1c4b-4281-b951-d872f2087c98

6 files changed, 118 insertions, 85 deletions

diff --git a/base/atomicops.h b/base/atomicops.h
index 1f656e7..5b2b9dd 100644
--- a/base/atomicops.h
+++ b/base/atomicops.h
@@ -145,4 +145,10 @@ Atomic64 Release_Load(volatile const Atomic64* ptr);
 #error "Atomic operations are not supported on your platform"
 #endif
 
+// On some platforms we need additional declarations to make
+// AtomicWord compatible with our other Atomic* types.
+#if defined(OS_MACOSX) || defined(OS_OPENBSD)
+#include "base/atomicops_internals_atomicword_compat.h"
+#endif
+
 #endif  // BASE_ATOMICOPS_H_
diff --git a/base/atomicops_internals_atomicword_compat.h b/base/atomicops_internals_atomicword_compat.h
new file mode 100644
index 0000000..8382fe1
--- /dev/null
+++ b/base/atomicops_internals_atomicword_compat.h
@@ -0,0 +1,101 @@
+// Copyright (c) 2011 The Chromium 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 base/atomicops.h instead.
+
+#ifndef BASE_ATOMICOPS_INTERNALS_ATOMICWORD_COMPAT_H_
+#define BASE_ATOMICOPS_INTERNALS_ATOMICWORD_COMPAT_H_
+#pragma once
+
+// 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(ARCH_CPU_64_BITS)
+
+namespace base {
+namespace subtle {
+
+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 base::subtle::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 base::subtle::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 base::subtle::Acquire_Store(
+      reinterpret_cast<volatile Atomic32*>(ptr), value);
+}
+
+inline void Release_Store(volatile AtomicWord* ptr, AtomicWord value) {
+  return base::subtle::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 base::subtle::Acquire_Load(
+      reinterpret_cast<volatile const Atomic32*>(ptr));
+}
+
+inline AtomicWord Release_Load(volatile const AtomicWord* ptr) {
+  return base::subtle::Release_Load(
+      reinterpret_cast<volatile const Atomic32*>(ptr));
+}
+
+}   // namespace base::subtle
+}   // namespace base
+
+#endif  // !defined(ARCH_CPU_64_BITS)
+
+#endif  // BASE_ATOMICOPS_INTERNALS_ATOMICWORD_COMPAT_H_
diff --git a/base/atomicops_internals_x86_macosx.h b/base/atomicops_internals_x86_macosx.h
index 29e58e3..4b7cec8 100644
--- a/base/atomicops_internals_x86_macosx.h
+++ b/base/atomicops_internals_x86_macosx.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -192,89 +192,6 @@ 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 to implement the AtomicWord interface.
-// When in 64-bit mode, AtomicWord is the same as Atomic64, so we need not
-// add duplicate definitions.
-#ifndef __LP64__
-#define AtomicWordCastType Atomic32
-
-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 base::subtle::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 base::subtle::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 base::subtle::Acquire_Store(
-      reinterpret_cast<volatile AtomicWordCastType*>(ptr), value);
-}
-
-inline void Release_Store(volatile AtomicWord* ptr, AtomicWord value) {
-  return base::subtle::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 base::subtle::Acquire_Load(
-      reinterpret_cast<volatile const AtomicWordCastType*>(ptr));
-}
-
-inline AtomicWord Release_Load(volatile const AtomicWord* ptr) {
-  return base::subtle::Release_Load(
-      reinterpret_cast<volatile const AtomicWordCastType*>(ptr));
-}
-
-#undef AtomicWordCastType
-#endif
-
 }   // namespace base::subtle
 }   // namespace base
 
diff --git a/base/debug/debugger_posix.cc b/base/debug/debugger_posix.cc
index dfc3d0a..bf90a0f 100644
--- a/base/debug/debugger_posix.cc
+++ b/base/debug/debugger_posix.cc
@@ -10,6 +10,7 @@
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <sys/param.h>
 #include <sys/stat.h>
 #if !defined(OS_NACL)
 #include <sys/sysctl.h>
diff --git a/base/debug/stack_trace_posix.cc b/base/debug/stack_trace_posix.cc
index 50ff113..c405aa2 100644
--- a/base/debug/stack_trace_posix.cc
+++ b/base/debug/stack_trace_posix.cc
@@ -9,6 +9,7 @@
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <sys/param.h>
 #include <sys/stat.h>
 #include <sys/sysctl.h>
 #include <sys/types.h>
diff --git a/base/string_util_posix.h b/base/string_util_posix.h
index 6053ada..d238f7f 100644
--- a/base/string_util_posix.h
+++ b/base/string_util_posix.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -44,8 +44,15 @@ inline int strncmp16(const char16* s1, const char16* s2, size_t count) {
 
 inline int vswprintf(wchar_t* buffer, size_t size,
                      const wchar_t* format, va_list arguments) {
+#if defined(OS_OPENBSD)
+  // TODO(phajdan.jr): There is a patch to add vswprintf to OpenBSD,
+  // http://marc.info/?l=openbsd-tech&m=130003157729839&w=2
+  NOTIMPLEMENTED();
+  return -1;
+#else
   DCHECK(IsWprintfFormatPortable(format));
   return ::vswprintf(buffer, size, format, arguments);
+#endif
 }
 
 }  // namespace base