gin/public/debug.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef GIN_PUBLIC_DEBUG_H_
   6 #define GIN_PUBLIC_DEBUG_H_
   7
   8 #include "build/build_config.h"
   9 #include "gin/gin_export.h"
  10 #include "v8/include/v8.h"
  11
  12 namespace gin {
  13
  14 class GIN_EXPORT Debug {
  15  public:
  16   /* Installs a callback that is invoked on entry to every V8-generated
  17    * function.
  18    *
  19    * This only affects IsolateHolder instances created after
  20    * SetFunctionEntryHook was invoked.
  21    */
  22   static void SetFunctionEntryHook(v8::FunctionEntryHook entry_hook);
  23
  24   /* Installs a callback that is invoked each time jit code is added, moved,
  25    * or removed.
  26    *
  27    * This only affects IsolateHolder instances created after
  28    * SetJitCodeEventHandler was invoked.
  29    */
  30   static void SetJitCodeEventHandler(v8::JitCodeEventHandler event_handler);
  31
  32 #if defined(OS_WIN)
  33   typedef void (__cdecl *CodeRangeCreatedCallback)(void*, size_t);
  34
  35   /* Sets a callback that is invoked for every new code range being created.
  36    *
  37    * On Win64, exception handling in jitted code is broken due to the fact
  38    * that JS stack frames are not ABI compliant. It is possible to install
  39    * custom handlers for the code range which holds the jitted code to work
  40    * around this issue.
  41    *
  42    * https://code.google.com/p/v8/issues/detail?id=3598
  43    */
  44   static void SetCodeRangeCreatedCallback(CodeRangeCreatedCallback callback);
  45
  46   typedef void (__cdecl *CodeRangeDeletedCallback)(void*);
  47
  48   /* Sets a callback that is invoked for every previously registered code range
  49    * when it is deleted.
  50    */
  51   static void SetCodeRangeDeletedCallback(CodeRangeDeletedCallback callback);
  52 #endif
  53 };
  54
  55 }  // namespace gin
  56
  57 #endif  // GIN_PUBLIC_DEBUG_H_