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    :  #include "syzygy/instrument/instrumenters/bbentry_instrumenter.h"
  16    :  
  17    :  #include "base/file_util.h"
  18    :  #include "base/logging.h"
  19    :  #include "syzygy/common/application.h"
  20    :  #include "syzygy/pe/image_filter.h"
  21    :  
  22    :  namespace instrument {
  23    :  namespace instrumenters {
  24    :  
  25    :  const char BasicBlockEntryInstrumenter::kAgentDllBasicBlockEntry[] =
  26    :      "basic_block_entry_client.dll";
  27    :  
  28    :  BasicBlockEntryInstrumenter::BasicBlockEntryInstrumenter()
  29  E :      : inline_fast_path_(false) {
  30  E :    agent_dll_ = kAgentDllBasicBlockEntry;
  31  E :  }
  32    :  
  33  E :  bool BasicBlockEntryInstrumenter::InstrumentImpl() {
  34    :    bbentry_transform_.reset(
  35  E :        new instrument::transforms::BasicBlockEntryHookTransform());
  36  E :    bbentry_transform_->set_instrument_dll_name(agent_dll_);
  37  E :    bbentry_transform_->set_inline_fast_path(inline_fast_path_);
  38  E :    bbentry_transform_->set_src_ranges_for_thunks(debug_friendly_);
  39  E :    relinker_->AppendTransform(bbentry_transform_.get());
  40    :  
  41    :    add_bb_addr_stream_mutator_.reset(new
  42    :        instrument::mutators::AddIndexedDataRangesStreamPdbMutator(
  43    :            bbentry_transform_->bb_ranges(),
  44  E :            common::kBasicBlockRangesStreamName));
  45  E :    relinker_->AppendPdbMutator(add_bb_addr_stream_mutator_.get());
  46    :  
  47  E :    return true;
  48  E :  }
  49    :  
  50    :  bool BasicBlockEntryInstrumenter::ParseAdditionalCommandLineArguments(
  51  E :      const CommandLine* command_line) {
  52    :    // Parse the additional command line arguments.
  53  E :    inline_fast_path_ = command_line->HasSwitch("inline-fast-path");
  54    :  
  55  E :    return true;
  56  E :  }
  57    :  
  58    :  }  // namespace instrumenters
  59    :  }  // namespace instrument