1 // Copyright 2013 Google Inc. All rights reserved. 2 // 3 // Redistribution and use in source and binary forms, with or without 4 // modification, are permitted provided that the following conditions are 5 // met: 6 // 7 // * Redistributions of source code must retain the above copyright 8 // notice, this list of conditions and the following disclaimer. 9 // * Redistributions in binary form must reproduce the above 10 // copyright notice, this list of conditions and the following disclaimer 11 // in the documentation and/or other materials provided with the 12 // distribution. 13 // * Neither the name of Google Inc. nor the names of its 14 // contributors may be used to endorse or promote products derived from 15 // this software without specific prior written permission. 16 // 17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29 // Provides an API for mapping symbols through OMAP information, if a PDB file 30 // is augmented with it. This allows breakpad to work with addresses in 31 // transformed images by transforming the symbols themselves, rather than 32 // transforming addresses prior to querying symbols (the way it is typically 33 // done by Windows-native tools, including the DIA). 34 35 #ifndef COMMON_WINDOWS_OMAP_H_ 36 #define COMMON_WINDOWS_OMAP_H_ 37 38 #include "common/windows/omap_internal.h" 39 40 namespace google_breakpad { 41 42 // If the given session contains OMAP data this extracts it, populating 43 // |omap_data|, and then disabling automatic translation for the session. 44 // OMAP data is present in the PDB if |omap_data| is not empty. This returns 45 // true on success, false otherwise. 46 bool GetOmapDataAndDisableTranslation(IDiaSession* dia_session, 47 OmapData* omap_data); 48 49 // Given raw OMAP data builds an ImageMap. This can be used to query individual 50 // image ranges using MapAddressRange. 51 // |omap_data|| is the OMAP data extracted from the PDB. 52 // |image_map| will be populated with a description of the image mapping. If 53 // |omap_data| is empty then this will also be empty. 54 void BuildImageMap(const OmapData& omap_data, ImageMap* image_map); 55 56 // Given an address range in the original image space determines how exactly it 57 // has been tranformed. 58 // |omap_data| is the OMAP data extracted from the PDB, which must not be 59 // empty. 60 // |original_range| is the address range in the original image being queried. 61 // |mapped_ranges| will be populated with a full description of the mapping. 62 // They may be disjoint in the transformed image so a vector is needed to 63 // fully represent the mapping. This will be appended to if it is not 64 // empty. If |omap_data| is empty then |mapped_ranges| will simply be 65 // populated with a copy of |original_range| (the identity transform). 66 void MapAddressRange(const ImageMap& image_map, 67 const AddressRange& original_range, 68 AddressRangeVector* mapped_ranges); 69 70 } // namespace google_breakpad 71 72 #endif // COMMON_WINDOWS_OMAP_H_ 73