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Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/processor/simple_symbol_supplier.h')
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1 files changed, 140 insertions, 0 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/processor/simple_symbol_supplier.h b/toolkit/crashreporter/google-breakpad/src/processor/simple_symbol_supplier.h new file mode 100644 index 0000000000..0cde85cdcd --- /dev/null +++ b/toolkit/crashreporter/google-breakpad/src/processor/simple_symbol_supplier.h @@ -0,0 +1,140 @@ +// Copyright (c) 2006, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// simple_symbol_supplier.h: A simple SymbolSupplier implementation +// +// SimpleSymbolSupplier is a straightforward implementation of SymbolSupplier +// that stores symbol files in a filesystem tree. A SimpleSymbolSupplier is +// created with one or more base directories, which are the root paths for all +// symbol files. Each symbol file contained therein has a directory entry in +// the base directory with a name identical to the corresponding debugging +// file (pdb). Within each of these directories, there are subdirectories +// named for the debugging file's identifier. For recent pdb files, this is +// a concatenation of the pdb's uuid and age, presented in hexadecimal form, +// without any dashes or separators. The uuid is in uppercase hexadecimal +// and the age is in lowercase hexadecimal. Within that subdirectory, +// SimpleSymbolSupplier expects to find the symbol file, which is named +// identically to the debug file, but with a .sym extension. If the original +// debug file had a name ending in .pdb, the .pdb extension will be replaced +// with .sym. This sample hierarchy is rooted at the "symbols" base +// directory: +// +// symbols +// symbols/test_app.pdb +// symbols/test_app.pdb/63FE4780728D49379B9D7BB6460CB42A1 +// symbols/test_app.pdb/63FE4780728D49379B9D7BB6460CB42A1/test_app.sym +// symbols/kernel32.pdb +// symbols/kernel32.pdb/BCE8785C57B44245A669896B6A19B9542 +// symbols/kernel32.pdb/BCE8785C57B44245A669896B6A19B9542/kernel32.sym +// +// In this case, the uuid of test_app.pdb is +// 63fe4780-728d-4937-9b9d-7bb6460cb42a and its age is 1. +// +// This scheme was chosen to be roughly analogous to the way that +// symbol files may be accessed from Microsoft Symbol Server. A hierarchy +// used for Microsoft Symbol Server storage is usable as a hierarchy for +// SimpleSymbolServer, provided that the pdb files are transformed to dumped +// format using a tool such as dump_syms, and given a .sym extension. +// +// SimpleSymbolSupplier will iterate over all root paths searching for +// a symbol file existing in that path. +// +// SimpleSymbolSupplier supports any debugging file which can be identified +// by a CodeModule object's debug_file and debug_identifier accessors. The +// expected ultimate source of these CodeModule objects are MinidumpModule +// objects; it is this class that is responsible for assigning appropriate +// values for debug_file and debug_identifier. +// +// Author: Mark Mentovai + +#ifndef PROCESSOR_SIMPLE_SYMBOL_SUPPLIER_H__ +#define PROCESSOR_SIMPLE_SYMBOL_SUPPLIER_H__ + +#include <map> +#include <string> +#include <vector> + +#include "common/using_std_string.h" +#include "google_breakpad/processor/symbol_supplier.h" + +namespace google_breakpad { + +using std::map; +using std::vector; + +class CodeModule; + +class SimpleSymbolSupplier : public SymbolSupplier { + public: + // Creates a new SimpleSymbolSupplier, using path as the root path where + // symbols are stored. + explicit SimpleSymbolSupplier(const string &path) : paths_(1, path) {} + + // Creates a new SimpleSymbolSupplier, using paths as a list of root + // paths where symbols may be stored. + explicit SimpleSymbolSupplier(const vector<string> &paths) : paths_(paths) {} + + virtual ~SimpleSymbolSupplier() {} + + // Returns the path to the symbol file for the given module. See the + // description above. + virtual SymbolResult GetSymbolFile(const CodeModule *module, + const SystemInfo *system_info, + string *symbol_file); + + virtual SymbolResult GetSymbolFile(const CodeModule *module, + const SystemInfo *system_info, + string *symbol_file, + string *symbol_data); + + // Allocates data buffer on heap and writes symbol data into buffer. + // Symbol supplier ALWAYS takes ownership of the data buffer. + virtual SymbolResult GetCStringSymbolData(const CodeModule *module, + const SystemInfo *system_info, + string *symbol_file, + char **symbol_data, + size_t *symbol_data_size); + + // Free the data buffer allocated in the above GetCStringSymbolData(); + virtual void FreeSymbolData(const CodeModule *module); + + protected: + SymbolResult GetSymbolFileAtPathFromRoot(const CodeModule *module, + const SystemInfo *system_info, + const string &root_path, + string *symbol_file); + + private: + map<string, char *> memory_buffers_; + vector<string> paths_; +}; + +} // namespace google_breakpad + +#endif // PROCESSOR_SIMPLE_SYMBOL_SUPPLIER_H__ |