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// 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.
// The caller may implement the SymbolSupplier abstract base class
// to provide symbols for a given module.
#ifndef GOOGLE_BREAKPAD_PROCESSOR_SYMBOL_SUPPLIER_H__
#define GOOGLE_BREAKPAD_PROCESSOR_SYMBOL_SUPPLIER_H__
#include <string>
#include "common/using_std_string.h"
namespace google_breakpad {
class CodeModule;
struct SystemInfo;
class SymbolSupplier {
public:
// Result type for GetSymbolFile
enum SymbolResult {
// no symbols were found, but continue processing
NOT_FOUND,
// symbols were found, and the path has been placed in symbol_file
FOUND,
// stops processing the minidump immediately
INTERRUPT
};
virtual ~SymbolSupplier() {}
// Retrieves the symbol file for the given CodeModule, placing the
// path in symbol_file if successful. system_info contains strings
// identifying the operating system and CPU; SymbolSupplier may use
// to help locate the symbol file. system_info may be NULL or its
// fields may be empty if these values are unknown. symbol_file
// must be a pointer to a valid string
virtual SymbolResult GetSymbolFile(const CodeModule *module,
const SystemInfo *system_info,
string *symbol_file) = 0;
// Same as above, except also places symbol data into symbol_data.
// If symbol_data is NULL, the data is not returned.
// TODO(nealsid) Once we have symbol data caching behavior implemented
// investigate making all symbol suppliers implement all methods,
// and make this pure virtual
virtual SymbolResult GetSymbolFile(const CodeModule *module,
const SystemInfo *system_info,
string *symbol_file,
string *symbol_data) = 0;
// Same as above, except allocates data buffer on heap and then places the
// symbol data into the buffer as C-string.
// SymbolSupplier is responsible for deleting the data buffer. After the call
// to GetCStringSymbolData(), the caller should call FreeSymbolData(const
// Module *module) once the data buffer is no longer needed.
// If symbol_data is not NULL, symbol supplier won't return FOUND unless it
// returns a valid buffer in symbol_data, e.g., returns INTERRUPT on memory
// allocation failure.
virtual SymbolResult GetCStringSymbolData(const CodeModule *module,
const SystemInfo *system_info,
string *symbol_file,
char **symbol_data) = 0;
// Frees the data buffer allocated for the module in GetCStringSymbolData.
virtual void FreeSymbolData(const CodeModule *module) = 0;
};
} // namespace google_breakpad
#endif // GOOGLE_BREAKPAD_PROCESSOR_SYMBOL_SUPPLIER_H__
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