1    :  // Copyright 2013 Google Inc. All Rights Reserved.
   2    :  //
   3    :  // Licensed under the Apache License, Version 2.0 (the "License");
   4    :  // you may not use this file except in compliance with the License.
   5    :  // You may obtain a copy of the License at
   6    :  //
   7    :  //     http://www.apache.org/licenses/LICENSE-2.0
   8    :  //
   9    :  // Unless required by applicable law or agreed to in writing, software
  10    :  // distributed under the License is distributed on an "AS IS" BASIS,
  11    :  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12    :  // See the License for the specific language governing permissions and
  13    :  // limitations under the License.
  14    :  //
  15    :  // Declares the entry thunk instrumenter.
  16    :  #ifndef SYZYGY_INSTRUMENT_INSTRUMENTERS_ENTRY_CALL_INSTRUMENTER_H_
  17    :  #define SYZYGY_INSTRUMENT_INSTRUMENTERS_ENTRY_CALL_INSTRUMENTER_H_
  18    :  
  19    :  #include <string>
  20    :  
  21    :  #include "base/command_line.h"
  22    :  #include "syzygy/instrument/instrumenters/instrumenter_with_agent.h"
  23    :  #include "syzygy/instrument/transforms/entry_call_transform.h"
  24    :  #include "syzygy/instrument/transforms/thunk_import_references_transform.h"
  25    :  #include "syzygy/pe/pe_relinker.h"
  26    :  
  27    :  namespace instrument {
  28    :  namespace instrumenters {
  29    :  
  30    :  class EntryCallInstrumenter : public InstrumenterWithAgent {
  31    :   public:
  32    :    typedef InstrumenterWithAgent Super;
  33    :  
  34    :    EntryCallInstrumenter();
  35  E :    ~EntryCallInstrumenter() { }
  36    :  
  37    :   protected:
  38    :    // The name of the agents for the different mode of instrumentation.
  39    :    static const char kAgentDllProfile[];
  40    :  
  41    :    // @name InstrumenterWithAgent overrides.
  42    :    // @{
  43    :    bool InstrumentPrepare() override;
  44    :    bool InstrumentImpl() override;
  45    :    const char* InstrumentationMode() override;
  46    :    // @}
  47    :  
  48    :    // @name Super overrides.
  49    :    // @{
  50    :    bool DoCommandLineParse(const base::CommandLine* command_line) override;
  51    :    // @}
  52    :  
  53    :    // @name Command-line parameters.
  54    :    // @{
  55    :    bool thunk_imports_;
  56    :    // @}
  57    :  
  58    :    // The transforms for this agent.
  59    :    scoped_ptr<instrument::transforms::EntryCallTransform>
  60    :        entry_thunk_transform_;
  61    :    scoped_ptr<instrument::transforms::ThunkImportReferencesTransform>
  62    :        import_thunk_tx_;
  63    :  };
  64    :  
  65    :  }  // namespace instrumenters
  66    :  }  // namespace instrument
  67    :  
  68    :  #endif  // SYZYGY_INSTRUMENT_INSTRUMENTERS_ENTRY_CALL_INSTRUMENTER_H_