Support profiling based on linux kernel performance events.

src/platform-solaris.cc

 // Copyright 2006-2009 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 238 matching lines @@
 PosixMemoryMappedFile::~PosixMemoryMappedFile() {
   if (memory_) munmap(memory_, size_);
   fclose(file_);
 }
 
 
 void OS::LogSharedLibraryAddresses() {
 }
 
 
+void OS::SignalCodeMovingGC() {
+}
+
+
 struct StackWalker {
   Vector<OS::StackFrame>& frames;
   int index;
 };
 
 
 static int StackWalkCallback(uintptr_t pc, int signo, void* data) {
   struct StackWalker* walker = static_cast<struct StackWalker*>(data);
   Dl_info info;
 
@@ skipping 375 matching lines @@
   }
 
   // This sampler is no longer the active sampler.
   active_sampler_ = NULL;
   active_ = false;
 }
 
 #endif  // ENABLE_LOGGING_AND_PROFILING
 
 } }  // namespace v8::internal