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-rw-r--r-- | toolkit/crashreporter/google-breakpad/src/google_breakpad/processor/source_line_resolver_base.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/google_breakpad/processor/source_line_resolver_base.h b/toolkit/crashreporter/google-breakpad/src/google_breakpad/processor/source_line_resolver_base.h new file mode 100644 index 0000000000..c720b0c325 --- /dev/null +++ b/toolkit/crashreporter/google-breakpad/src/google_breakpad/processor/source_line_resolver_base.h @@ -0,0 +1,128 @@ +// Copyright (c) 2010 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. +// +// source_line_resolver_base.h: SourceLineResolverBase, an (incomplete) +// implementation of SourceLineResolverInterface. It serves as a common base +// class for concrete implementations: FastSourceLineResolver and +// BasicSourceLineResolver. It is designed for refactoring that removes +// code redundancy in the two concrete source line resolver classes. +// +// See "google_breakpad/processor/source_line_resolver_interface.h" for more +// documentation. + +// Author: Siyang Xie (lambxsy@google.com) + +#ifndef GOOGLE_BREAKPAD_PROCESSOR_SOURCE_LINE_RESOLVER_BASE_H__ +#define GOOGLE_BREAKPAD_PROCESSOR_SOURCE_LINE_RESOLVER_BASE_H__ + +#include <map> +#include <set> +#include <string> + +#include "google_breakpad/processor/source_line_resolver_interface.h" + +namespace google_breakpad { + +using std::map; +using std::set; + +// Forward declaration. +// ModuleFactory is a simple factory interface for creating a Module instance +// at run-time. +class ModuleFactory; + +class SourceLineResolverBase : public SourceLineResolverInterface { + public: + // Read the symbol_data from a file with given file_name. + // The part of code was originally in BasicSourceLineResolver::Module's + // LoadMap() method. + // Place dynamically allocated heap buffer in symbol_data. Caller has the + // ownership of the buffer, and should call delete [] to free the buffer. + static bool ReadSymbolFile(const string &file_name, + char **symbol_data, + size_t *symbol_data_size); + + protected: + // Users are not allowed create SourceLineResolverBase instance directly. + SourceLineResolverBase(ModuleFactory *module_factory); + virtual ~SourceLineResolverBase(); + + // Virtual methods inherited from SourceLineResolverInterface. + virtual bool LoadModule(const CodeModule *module, const string &map_file); + virtual bool LoadModuleUsingMapBuffer(const CodeModule *module, + const string &map_buffer); + virtual bool LoadModuleUsingMemoryBuffer(const CodeModule *module, + char *memory_buffer, + size_t memory_buffer_size); + virtual bool ShouldDeleteMemoryBufferAfterLoadModule(); + virtual void UnloadModule(const CodeModule *module); + virtual bool HasModule(const CodeModule *module); + virtual bool IsModuleCorrupt(const CodeModule *module); + virtual void FillSourceLineInfo(StackFrame *frame); + virtual WindowsFrameInfo *FindWindowsFrameInfo(const StackFrame *frame); + virtual CFIFrameInfo *FindCFIFrameInfo(const StackFrame *frame); + + // Nested structs and classes. + struct Line; + struct Function; + struct PublicSymbol; + struct CompareString { + bool operator()(const string &s1, const string &s2) const; + }; + // Module is an interface for an in-memory symbol file. + class Module; + class AutoFileCloser; + + // All of the modules that are loaded. + typedef map<string, Module*, CompareString> ModuleMap; + ModuleMap *modules_; + + // The loaded modules that were detecting to be corrupt during load. + typedef set<string, CompareString> ModuleSet; + ModuleSet *corrupt_modules_; + + // All of heap-allocated buffers that are owned locally by resolver. + typedef std::map<string, char*, CompareString> MemoryMap; + MemoryMap *memory_buffers_; + + // Creates a concrete module at run-time. + ModuleFactory *module_factory_; + + private: + // ModuleFactory needs to have access to protected type Module. + friend class ModuleFactory; + + // Disallow unwanted copy ctor and assignment operator + SourceLineResolverBase(const SourceLineResolverBase&); + void operator=(const SourceLineResolverBase&); +}; + +} // namespace google_breakpad + +#endif // GOOGLE_BREAKPAD_PROCESSOR_SOURCE_LINE_RESOLVER_BASE_H__ |