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comparison: toolkit/crashreporter/google-breakpad/src/processor/module_comparer.h
toolkit/crashreporter/google-breakpad/src/processor/module_comparer.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| 1 // Copyright (c) 2010, Google Inc. | |
| 2 // All rights reserved. | |
| 3 // | |
| 4 // Redistribution and use in source and binary forms, with or without | |
| 5 // modification, are permitted provided that the following conditions are | |
| 6 // met: | |
| 7 // | |
| 8 // * Redistributions of source code must retain the above copyright | |
| 9 // notice, this list of conditions and the following disclaimer. | |
| 10 // * Redistributions in binary form must reproduce the above | |
| 11 // copyright notice, this list of conditions and the following disclaimer | |
| 12 // in the documentation and/or other materials provided with the | |
| 13 // distribution. | |
| 14 // * Neither the name of Google Inc. nor the names of its | |
| 15 // contributors may be used to endorse or promote products derived from | |
| 16 // this software without specific prior written permission. | |
| 17 // | |
| 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 // | |
| 30 // module_comparer.h: ModuleComparer reads a string format of symbol file, and | |
| 31 // loads the symbol into both BasicSourceLineResolver::Module and | |
| 32 // FastSourceLineResolve::Module. It then traverses both Modules and compare | |
| 33 // the content of data to verify the correctness of new fast module. | |
| 34 // ModuleCompare class is a tool to verify correctness of a loaded | |
| 35 // FastSourceLineResolver::Module instance, i.e., in-memory representation of | |
| 36 // parsed symbol. ModuleComparer class should be used for testing purpose only, | |
| 37 // e.g., in fast_source_line_resolver_unittest. | |
| 38 // | |
| 39 // Author: lambxsy@google.com (Siyang Xie) | |
| 40 | |
| 41 #ifndef PROCESSOR_MODULE_COMPARER_H__ | |
| 42 #define PROCESSOR_MODULE_COMPARER_H__ | |
| 43 | |
| 44 #include <string> | |
| 45 | |
| 46 #include "processor/basic_source_line_resolver_types.h" | |
| 47 #include "processor/fast_source_line_resolver_types.h" | |
| 48 #include "processor/module_serializer.h" | |
| 49 #include "processor/windows_frame_info.h" | |
| 50 | |
| 51 namespace google_breakpad { | |
| 52 | |
| 53 class ModuleComparer { | |
| 54 public: | |
| 55 ModuleComparer(): fast_resolver_(new FastSourceLineResolver), | |
| 56 basic_resolver_(new BasicSourceLineResolver) { } | |
| 57 ~ModuleComparer() { | |
| 58 delete fast_resolver_; | |
| 59 delete basic_resolver_; | |
| 60 } | |
| 61 | |
| 62 // BasicSourceLineResolver loads its module using the symbol data, | |
| 63 // ModuleSerializer serialize the loaded module into a memory chunk, | |
| 64 // FastSourceLineResolver loads its module using the serialized memory chunk, | |
| 65 // Then, traverse both modules together and compare underlying data | |
| 66 // return true if both modules contain exactly same data. | |
| 67 bool Compare(const string &symbol_data); | |
| 68 | |
| 69 private: | |
| 70 typedef BasicSourceLineResolver::Module BasicModule; | |
| 71 typedef FastSourceLineResolver::Module FastModule; | |
| 72 typedef BasicSourceLineResolver::Function BasicFunc; | |
| 73 typedef FastSourceLineResolver::Function FastFunc; | |
| 74 typedef BasicSourceLineResolver::Line BasicLine; | |
| 75 typedef FastSourceLineResolver::Line FastLine; | |
| 76 typedef BasicSourceLineResolver::PublicSymbol BasicPubSymbol; | |
| 77 typedef FastSourceLineResolver::PublicSymbol FastPubSymbol; | |
| 78 typedef WindowsFrameInfo WFI; | |
| 79 | |
| 80 bool CompareModule(const BasicModule *oldmodule, | |
| 81 const FastModule *newmodule) const; | |
| 82 bool CompareFunction(const BasicFunc *oldfunc, const FastFunc *newfunc) const; | |
| 83 bool CompareLine(const BasicLine *oldline, const FastLine *newline) const; | |
| 84 bool ComparePubSymbol(const BasicPubSymbol*, const FastPubSymbol*) const; | |
| 85 bool CompareWFI(const WindowsFrameInfo&, const WindowsFrameInfo&) const; | |
| 86 | |
| 87 // Compare ContainedRangeMap | |
| 88 bool CompareCRM(const ContainedRangeMap<MemAddr, linked_ptr<WFI> >*, | |
| 89 const StaticContainedRangeMap<MemAddr, char>*) const; | |
| 90 | |
| 91 FastSourceLineResolver *fast_resolver_; | |
| 92 BasicSourceLineResolver *basic_resolver_; | |
| 93 ModuleSerializer serializer_; | |
| 94 }; | |
| 95 | |
| 96 } // namespace google_breakpad | |
| 97 | |
| 98 #endif // PROCESSOR_MODULE_COMPARER_H__ |
