win: Get client/crashpad_info.cc to compile

client/crashpad_info.cc

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
 #include "client/crashpad_info.h"
 
+#include "build/build_config.h"
+#include "util/stdlib/cxx.h"
+
+#if defined(OS_MACOSX)
 #include <mach-o/loader.h>
-
-#include "util/stdlib/cxx.h"
+#endif
 
 #if CXX_LIBRARY_VERSION >= 2011
 #include <type_traits>
 #endif
 
 namespace {
 
 static const uint32_t kCrashpadInfoVersion = 1;
 
 }  // namespace
 
 namespace crashpad {
 
 #if CXX_LIBRARY_VERSION >= 2011 || DOXYGEN
 // In C++11, check that CrashpadInfo has standard layout, which is what is
 // actually important.
 static_assert(std::is_standard_layout<CrashpadInfo>::value,
               "CrashpadInfo must be standard layout");
 #else
 // In C++98 (ISO 14882), section 9.5.1 says that a union cannot have a member
 // with a non-trivial ctor, copy ctor, dtor, or assignment operator. Use this
 // property to ensure that CrashpadInfo remains POD. This doesn’t work for C++11
 // because the requirements for unions have been relaxed.
 union Compile_Assert {
   CrashpadInfo Compile_Assert__CrashpadInfo_must_be_pod;
 };
 #endif
 
-// Put the structure in __DATA,__crashpad_info where it can be easily found
-// without having to consult the symbol table. The “used” attribute prevents it
-// from being dead-stripped. This isn’t placed in an unnamed namespace:
-// hopefully, this will catch attempts to place multiple copies of this
-// structure into the same module. If that’s attempted, and the name of the
-// symbol is the same in each translation unit, it will result in a linker
-// error, which is better than having multiple structures show up.
+// This structure needs to be stored somewhere that is easy to find without
+// external information.
+//
+// It isn’t placed in an unnamed namespace: hopefully, this will catch attempts
+// to place multiple copies of this structure into the same module. If that’s
+// attempted, and the name of the symbol is the same in each translation unit,
+// it will result in a linker error, which is better than having multiple
+// structures show up.
 //
 // This may result in a static module initializer in debug-mode builds, but
 // because it’s POD, no code should need to run to initialize this under
 // release-mode optimization.
+#if defined(OS_MACOSX)
+
+// Put the structure in __DATA,__crashpad_info where it can be easily found
+// without having to consult the symbol table. The “used” attribute prevents it
+// from being dead-stripped.
 __attribute__((section(SEG_DATA ",__crashpad_info"),
                used,
                visibility("hidden"))) CrashpadInfo g_crashpad_info;
 
+#elif defined(OS_WIN)
+
+// TODO(scottmg): Tag in a way that makes it easy to locate on Windows.
+CrashpadInfo g_crashpad_info;
+
+#endif
+
 // static
 CrashpadInfo* CrashpadInfo::GetCrashpadInfo() {
   return &g_crashpad_info;
 }
 
 CrashpadInfo::CrashpadInfo()
     : signature_(kSignature),
       size_(sizeof(*this)),
       version_(kCrashpadInfoVersion),
       padding_0_(0),
       simple_annotations_(nullptr) {
 }
 
 const uint32_t CrashpadInfo::kSignature;
 
 }  // namespace crashpad