toolkit/crashreporter/google-breakpad/src/processor/module_comparer.h@b8a032363ba2 (annotated)
toolkit/crashreporter/google-breakpad/src/processor/module_comparer.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | // Copyright (c) 2010, Google Inc. |
| michael@0 | 2 | // All rights reserved. |
| michael@0 | 3 | // |
| michael@0 | 4 | // Redistribution and use in source and binary forms, with or without |
| michael@0 | 5 | // modification, are permitted provided that the following conditions are |
| michael@0 | 6 | // met: |
| michael@0 | 7 | // |
| michael@0 | 8 | // * Redistributions of source code must retain the above copyright |
| michael@0 | 9 | // notice, this list of conditions and the following disclaimer. |
| michael@0 | 10 | // * Redistributions in binary form must reproduce the above |
| michael@0 | 11 | // copyright notice, this list of conditions and the following disclaimer |
| michael@0 | 12 | // in the documentation and/or other materials provided with the |
| michael@0 | 13 | // distribution. |
| michael@0 | 14 | // * Neither the name of Google Inc. nor the names of its |
| michael@0 | 15 | // contributors may be used to endorse or promote products derived from |
| michael@0 | 16 | // this software without specific prior written permission. |
| michael@0 | 17 | // |
| michael@0 | 18 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| michael@0 | 19 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| michael@0 | 20 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| michael@0 | 21 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| michael@0 | 22 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| michael@0 | 23 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| michael@0 | 24 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| michael@0 | 25 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| michael@0 | 26 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| michael@0 | 27 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| michael@0 | 28 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 29 | // |
| michael@0 | 30 | // module_comparer.h: ModuleComparer reads a string format of symbol file, and |
| michael@0 | 31 | // loads the symbol into both BasicSourceLineResolver::Module and |
| michael@0 | 32 | // FastSourceLineResolve::Module. It then traverses both Modules and compare |
| michael@0 | 33 | // the content of data to verify the correctness of new fast module. |
| michael@0 | 34 | // ModuleCompare class is a tool to verify correctness of a loaded |
| michael@0 | 35 | // FastSourceLineResolver::Module instance, i.e., in-memory representation of |
| michael@0 | 36 | // parsed symbol. ModuleComparer class should be used for testing purpose only, |
| michael@0 | 37 | // e.g., in fast_source_line_resolver_unittest. |
| michael@0 | 38 | // |
| michael@0 | 39 | // Author: lambxsy@google.com (Siyang Xie) |
| michael@0 | 40 | |
| michael@0 | 41 | #ifndef PROCESSOR_MODULE_COMPARER_H__ |
| michael@0 | 42 | #define PROCESSOR_MODULE_COMPARER_H__ |
| michael@0 | 43 | |
| michael@0 | 44 | #include <string> |
| michael@0 | 45 | |
| michael@0 | 46 | #include "processor/basic_source_line_resolver_types.h" |
| michael@0 | 47 | #include "processor/fast_source_line_resolver_types.h" |
| michael@0 | 48 | #include "processor/module_serializer.h" |
| michael@0 | 49 | #include "processor/windows_frame_info.h" |
| michael@0 | 50 | |
| michael@0 | 51 | namespace google_breakpad { |
| michael@0 | 52 | |
| michael@0 | 53 | class ModuleComparer { |
| michael@0 | 54 | public: |
| michael@0 | 55 | ModuleComparer(): fast_resolver_(new FastSourceLineResolver), |
| michael@0 | 56 | basic_resolver_(new BasicSourceLineResolver) { } |
| michael@0 | 57 | ~ModuleComparer() { |
| michael@0 | 58 | delete fast_resolver_; |
| michael@0 | 59 | delete basic_resolver_; |
| michael@0 | 60 | } |
| michael@0 | 61 | |
| michael@0 | 62 | // BasicSourceLineResolver loads its module using the symbol data, |
| michael@0 | 63 | // ModuleSerializer serialize the loaded module into a memory chunk, |
| michael@0 | 64 | // FastSourceLineResolver loads its module using the serialized memory chunk, |
| michael@0 | 65 | // Then, traverse both modules together and compare underlying data |
| michael@0 | 66 | // return true if both modules contain exactly same data. |
| michael@0 | 67 | bool Compare(const string &symbol_data); |
| michael@0 | 68 | |
| michael@0 | 69 | private: |
| michael@0 | 70 | typedef BasicSourceLineResolver::Module BasicModule; |
| michael@0 | 71 | typedef FastSourceLineResolver::Module FastModule; |
| michael@0 | 72 | typedef BasicSourceLineResolver::Function BasicFunc; |
| michael@0 | 73 | typedef FastSourceLineResolver::Function FastFunc; |
| michael@0 | 74 | typedef BasicSourceLineResolver::Line BasicLine; |
| michael@0 | 75 | typedef FastSourceLineResolver::Line FastLine; |
| michael@0 | 76 | typedef BasicSourceLineResolver::PublicSymbol BasicPubSymbol; |
| michael@0 | 77 | typedef FastSourceLineResolver::PublicSymbol FastPubSymbol; |
| michael@0 | 78 | typedef WindowsFrameInfo WFI; |
| michael@0 | 79 | |
| michael@0 | 80 | bool CompareModule(const BasicModule *oldmodule, |
| michael@0 | 81 | const FastModule *newmodule) const; |
| michael@0 | 82 | bool CompareFunction(const BasicFunc *oldfunc, const FastFunc *newfunc) const; |
| michael@0 | 83 | bool CompareLine(const BasicLine *oldline, const FastLine *newline) const; |
| michael@0 | 84 | bool ComparePubSymbol(const BasicPubSymbol*, const FastPubSymbol*) const; |
| michael@0 | 85 | bool CompareWFI(const WindowsFrameInfo&, const WindowsFrameInfo&) const; |
| michael@0 | 86 | |
| michael@0 | 87 | // Compare ContainedRangeMap |
| michael@0 | 88 | bool CompareCRM(const ContainedRangeMap<MemAddr, linked_ptr<WFI> >*, |
| michael@0 | 89 | const StaticContainedRangeMap<MemAddr, char>*) const; |
| michael@0 | 90 | |
| michael@0 | 91 | FastSourceLineResolver *fast_resolver_; |
| michael@0 | 92 | BasicSourceLineResolver *basic_resolver_; |
| michael@0 | 93 | ModuleSerializer serializer_; |
| michael@0 | 94 | }; |
| michael@0 | 95 | |
| michael@0 | 96 | } // namespace google_breakpad |
| michael@0 | 97 | |
| michael@0 | 98 | #endif // PROCESSOR_MODULE_COMPARER_H__ |
