Do not store fp and sp values in TickSample

src/log.cc

 // Copyright 2011 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 1346 matching lines @@
   DeleteArray(parameter_string);
   msg.WriteToLogFile();
 }
 
 
 void Logger::TickEvent(TickSample* sample, bool overflow) {
   if (!log_->IsEnabled() || !FLAG_prof) return;
   LogMessageBuilder msg(this);
   msg.Append("%s,", kLogEventsNames[TICK_EVENT]);
   msg.AppendAddress(sample->pc);
-  msg.Append(',');
-  msg.AppendAddress(sample->sp);
   msg.Append(",%ld", static_cast<int>(OS::Ticks() - epoch_));
   if (sample->has_external_callback) {
     msg.Append(",1,");
     msg.AppendAddress(sample->external_callback);
   } else {
     msg.Append(",0,");
     msg.AppendAddress(sample->tos);
   }
   msg.Append(",%d", static_cast<int>(sample->state));
   if (overflow) {
@@ skipping 433 matching lines @@
     profiler_ = NULL;
   }
 
   delete ticker_;
   ticker_ = NULL;
 
   return log_->Close();
 }
 
 } }  // namespace v8::internal