Allow platforms (linux and win32) to not force 16-byte alignment...

src/platform-win32.cc

 // Copyright 2006-2008 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
@@ skipping 1188 matching lines @@
 
 // Restore warnings to previous settings.
 #pragma warning(pop)
 
 
 double OS::nan_value() {
   static const __int64 nanval = 0xfff8000000000000;
   return *reinterpret_cast<const double*>(&nanval);
 }
 
+
+int OS::ActivationFrameAlignment() {
+  // No constraint on Windows.
+  return 0;
+}
+
+
 bool VirtualMemory::IsReserved() {
   return address_ != NULL;
 }
 
 
 VirtualMemory::VirtualMemory(size_t size) {
   address_ = VirtualAlloc(NULL, size, MEM_RESERVE, PAGE_NOACCESS);
   size_ = size;
 }
 
@@ skipping 346 matching lines @@
 
   // Release the thread handles
   CloseHandle(data_->sampler_thread_);
   CloseHandle(data_->profiled_thread_);
 }
 
 
 #endif  // ENABLE_LOGGING_AND_PROFILING
 
 } }  // namespace v8::internal