[WIP] TrapHandler 2014/11/27.

src/isolate.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_ISOLATE_H_
 #define V8_ISOLATE_H_
 
+#include <utility>
+#include <vector>
+
 #include "include/v8-debug.h"
 #include "src/allocation.h"
 #include "src/assert-scope.h"
 #include "src/base/atomicops.h"
 #include "src/builtins.h"
 #include "src/contexts.h"
 #include "src/date.h"
 #include "src/execution.h"
 #include "src/frames.h"
 #include "src/global-handles.h"
@@ skipping 27 matching lines @@
 class Counters;
 class CpuFeatures;
 class CpuProfiler;
 class DeoptimizerData;
 class Deserializer;
 class EmptyStatement;
 class ExternalCallbackScope;
 class ExternalReferenceTable;
 class Factory;
 class FunctionInfoListener;
+struct GuardArea;
 class HandleScopeImplementer;
 class HeapProfiler;
 class HStatistics;
 class HTracer;
 class InlineRuntimeFunctionsTable;
 class InnerPointerToCodeCache;
 class MaterializedObjectStore;
 class CodeAgingHelper;
 class RegExpStack;
 class SaveContext;
@@ skipping 1044 matching lines @@
   BasicBlockProfiler* basic_block_profiler() { return basic_block_profiler_; }
 
   static Isolate* NewForTesting() { return new Isolate(false); }
 
   std::string GetTurboCfgFileName();
 
 #if TRACE_MAPS
   int GetNextUniqueSharedFunctionInfoId() { return next_unique_sfi_id_++; }
 #endif
 
+  void AddGuardArea(void const* address, size_t const length);
+  void RemoveGuardArea(void const* address, size_t const length);
+  bool IsInGuardArea(void const* address) const;
+
  private:
   explicit Isolate(bool enable_serializer);
 
   friend struct GlobalState;
   friend struct InitializeGlobalState;
 
   // These fields are accessed through the API, offsets must be kept in sync
   // with v8::internal::Internals (in include/v8.h) constants. This is also
   // verified in Isolate::Init() using runtime checks.
   void* embedder_data_[Internals::kNumIsolateDataSlots];
@@ skipping 195 matching lines @@
 
 #if TRACE_MAPS
   int next_unique_sfi_id_;
 #endif
 
   // List of callbacks when a Call completes.
   List<CallCompletedCallback> call_completed_callbacks_;
 
   v8::Isolate::UseCounterCallback use_counter_callback_;
   BasicBlockProfiler* basic_block_profiler_;
+  std::vector<std::pair<void const*, void const*>> guard_areas_;
 
   friend class ExecutionAccess;
   friend class HandleScopeImplementer;
   friend class IsolateInitializer;
   friend class OptimizingCompilerThread;
   friend class SweeperThread;
   friend class ThreadManager;
   friend class Simulator;
   friend class StackGuard;
   friend class ThreadId;
@@ skipping 209 matching lines @@
   }
 
   EmbeddedVector<char, 128> filename_;
   FILE* file_;
   int scope_depth_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_ISOLATE_H_