Fix strict aliasing rule violation in runtime-profiler.cc

src/runtime-profiler.cc

 // Copyright 2010 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 76 matching lines @@
 
 static int sampler_threshold = kSamplerThresholdInit;
 static int sampler_threshold_size_factor = kSamplerThresholdSizeFactorInit;
 
 
 // The JSFunctions in the sampler window are not GC safe. Old-space
 // pointers are not cleared during mark-sweep collection and therefore
 // the window might contain stale pointers. The window is updated on
 // scavenges and (parts of it) cleared on mark-sweep and
 // mark-sweep-compact.
-static JSFunction* sampler_window[kSamplerWindowSize] = { NULL, };
+static Object* sampler_window[kSamplerWindowSize] = { NULL, };
 static int sampler_window_position = 0;
 static int sampler_window_weight[kSamplerWindowSize] = { 0, };
 
 
 // Support for pending 'optimize soon' requests.
 static PendingListNode* optimize_soon_list = NULL;
 
 
 PendingListNode::PendingListNode(JSFunction* function) : next_(NULL) {
   function_ = GlobalHandles::Create(function);
@@ skipping 105 matching lines @@
       sampler_window[i] = NULL;
       sampler_window_weight[i] = 0;
     }
   }
 }
 
 
 static int LookupSample(JSFunction* function) {
   int weight = 0;
   for (int i = 0; i < kSamplerWindowSize; i++) {
-    JSFunction* sample = sampler_window[i];
+    Object* sample = sampler_window[i];
     if (sample != NULL) {
       if (function == sample) {
         weight += sampler_window_weight[i];
       }
     }
   }
   return weight;
 }
 
 
@@ skipping 110 matching lines @@
   sampler_threshold_size_factor = kSamplerThresholdSizeFactorInit;
 }
 
 
 void RuntimeProfiler::TearDown() {
   // Nothing to do.
 }
 
 
 Object** RuntimeProfiler::SamplerWindowAddress() {
-  return reinterpret_cast<Object**>(sampler_window);
+  return sampler_window;
 }
 
 
 int RuntimeProfiler::SamplerWindowSize() {
   return kSamplerWindowSize;
 }
 
 
 bool RuntimeProfilerRateLimiter::SuspendIfNecessary() {
   static const int kNonJSTicksThreshold = 100;
@@ skipping 11 matching lines @@
       } else {
         if (Top::WaitForJSState()) return true;
       }
     }
   }
   return false;
 }
 
 
 } }  // namespace v8::internal