* Remove unused code from codegen-arm.cc...

src/platform-linux.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 489 matching lines @@
 
 void LinuxSemaphore::Wait() {
   while (true) {
     int result = sem_wait(&sem_);
     if (result == 0) return;  // Successfully got semaphore.
     CHECK(result == -1 && errno == EINTR);  // Signal caused spurious wakeup.
   }
 }
 
 
+#ifndef TIMEVAL_TO_TIMESPEC
+#define TIMEVAL_TO_TIMESPEC(tv, ts) do {                            \
+    (ts)->tv_sec = (tv)->tv_sec;                                    \
+    (ts)->tv_nsec = (tv)->tv_usec * 1000;                           \
+} while(false)
+#endif 
+
+
 bool LinuxSemaphore::Wait(int timeout) {
   const long kOneSecondMicros = 1000000;  // NOLINT
 
   // Split timeout into second and nanosecond parts.
   struct timeval delta;
   delta.tv_usec = timeout % kOneSecondMicros;
   delta.tv_sec = timeout / kOneSecondMicros;
 
   struct timeval current_time;
   // Get the current time.
@@ skipping 147 matching lines @@
   }
 
   // This sampler is no longer the active sampler.
   active_sampler_ = NULL;
   active_ = false;
 }
 
 #endif  // ENABLE_LOGGING_AND_PROFILING
 
 } }  // namespace v8::internal