1    :  // Copyright 2012 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    :  #ifndef SYZYGY_PDB_PDB_CONSTANTS_H_
  15    :  #define SYZYGY_PDB_PDB_CONSTANTS_H_
  16    :  
  17    :  #include "base/basictypes.h"
  18    :  
  19  m :  namespace pdb {
  20    :  
  21    :  // The index of the Pdb old directory stream.
  22  m :  const size_t kPdbOldDirectoryStream = 0;
  23    :  
  24    :  // The index of the Pdb info header stream.
  25  m :  const size_t kPdbHeaderInfoStream = 1;
  26    :  
  27    :  // The version we've observed in the Pdb info header.
  28  m :  const uint32 kPdbCurrentVersion = 20000404;
  29    :  
  30    :  // The signature we've observed in the section contribs substream of the Pdb Dbi
  31    :  // stream.
  32  m :  const uint32 kPdbDbiSectionContribsSignature = 0xF12EBA2D;
  33    :  
  34    :  // The signature we've observed for the name tables of the Pdb.
  35  m :  const uint32 kPdbNameTableSignature = 0xEFFEEFFE;
  36    :  
  37    :  // The version we've observed for the name tables of the Pdb.
  38  m :  const uint32 kPdbNameTableVersion = 1;
  39    :  
  40    :  // The index of the Tpi (Type info) stream.
  41  m :  const size_t kTpiStream = 2;
  42    :  
  43    :  // The index of the Dbi info stream.
  44  m :  const size_t kDbiStream = 3;
  45    :  
  46    :  // This is the magic value found at the start of all MSF v7.00 files.
  47  m :  const size_t kPdbHeaderMagicStringSize = 32;
  48  m :  extern const uint8 kPdbHeaderMagicString[kPdbHeaderMagicStringSize];
  49    :  
  50    :  // The maximum number of root pages in the Multi-Stream Format (MSF) header.
  51    :  // See http://code.google.com/p/pdbparser/wiki/MSF_Format
  52  m :  const uint32 kPdbMaxDirPages = 73;
  53    :  
  54    :  // This is the Multi-Stream Format (MSF) page size generally used for PDB
  55    :  // files. Check bytes 32 through 35 (little endian) of any PDB file.
  56    :  // TODO(chrisha): Make this configurable. We've seen 1024 or 4096, depending on
  57    :  //     the specifics of the file. Plausibly this could be any power of two
  58    :  //     greater than or equal to 512, but 2048 seems to actually be disallowed
  59    :  //     by the MS tools.
  60  m :  const uint32 kPdbPageSize = 1024;
  61    :  
  62    :  // The named PDB stream containing the history of Syzygy transformations applied
  63    :  // to an image. This consists of a sequence of Metadata objects.
  64  m :  extern const char kSyzygyHistoryStreamName[];
  65    :  
  66    :  // The version of the Syzygy history stream. This needs to be incremented
  67    :  // whenever the format of the stream has changed.
  68  m :  const uint32 kSyzygyHistoryStreamVersion = 0;
  69    :  
  70    :  // The named PDB stream containing the serialized BlockGraph of an image.
  71  m :  extern const char kSyzygyBlockGraphStreamName[];
  72    :  
  73    :  // The version of the Syzygy BlockGraph data stream. This needs to be
  74    :  // incremented whenever the format of the stream has changed.
  75  m :  const uint32 kSyzygyBlockGraphStreamVersion = 1;
  76    :  
  77  m :  }  // namespace pdb
  78    :  
  79    :  #endif  // SYZYGY_PDB_PDB_CONSTANTS_H_