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// 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.
//
// module_comparer.h: ModuleComparer reads a string format of symbol file, and
// loads the symbol into both BasicSourceLineResolver::Module and
// FastSourceLineResolve::Module. It then traverses both Modules and compare
// the content of data to verify the correctness of new fast module.
// ModuleCompare class is a tool to verify correctness of a loaded
// FastSourceLineResolver::Module instance, i.e., in-memory representation of
// parsed symbol. ModuleComparer class should be used for testing purpose only,
// e.g., in fast_source_line_resolver_unittest.
//
// Author: lambxsy@google.com (Siyang Xie)
#ifndef PROCESSOR_MODULE_COMPARER_H__
#define PROCESSOR_MODULE_COMPARER_H__
#include <string>
#include "processor/basic_source_line_resolver_types.h"
#include "processor/fast_source_line_resolver_types.h"
#include "processor/module_serializer.h"
#include "processor/windows_frame_info.h"
namespace google_breakpad {
class ModuleComparer {
public:
ModuleComparer(): fast_resolver_(new FastSourceLineResolver),
basic_resolver_(new BasicSourceLineResolver) { }
~ModuleComparer() {
delete fast_resolver_;
delete basic_resolver_;
}
// BasicSourceLineResolver loads its module using the symbol data,
// ModuleSerializer serialize the loaded module into a memory chunk,
// FastSourceLineResolver loads its module using the serialized memory chunk,
// Then, traverse both modules together and compare underlying data
// return true if both modules contain exactly same data.
bool Compare(const string &symbol_data);
private:
typedef BasicSourceLineResolver::Module BasicModule;
typedef FastSourceLineResolver::Module FastModule;
typedef BasicSourceLineResolver::Function BasicFunc;
typedef FastSourceLineResolver::Function FastFunc;
typedef BasicSourceLineResolver::Line BasicLine;
typedef FastSourceLineResolver::Line FastLine;
typedef BasicSourceLineResolver::PublicSymbol BasicPubSymbol;
typedef FastSourceLineResolver::PublicSymbol FastPubSymbol;
typedef WindowsFrameInfo WFI;
bool CompareModule(const BasicModule *oldmodule,
const FastModule *newmodule) const;
bool CompareFunction(const BasicFunc *oldfunc, const FastFunc *newfunc) const;
bool CompareLine(const BasicLine *oldline, const FastLine *newline) const;
bool ComparePubSymbol(const BasicPubSymbol*, const FastPubSymbol*) const;
bool CompareWFI(const WindowsFrameInfo&, const WindowsFrameInfo&) const;
// Compare ContainedRangeMap
bool CompareCRM(const ContainedRangeMap<MemAddr, linked_ptr<WFI> >*,
const StaticContainedRangeMap<MemAddr, char>*) const;
FastSourceLineResolver *fast_resolver_;
BasicSourceLineResolver *basic_resolver_;
ModuleSerializer serializer_;
};
} // namespace google_breakpad
#endif // PROCESSOR_MODULE_COMPARER_H__
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