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// Copyright (C) 2006 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// SourceLineResolver returns function/file/line info for a memory address.
// It uses address map files produced by a compatible writer, e.g.
// PDBSourceLineWriter.
#ifndef PROCESSOR_SOURCE_LINE_RESOLVER_H__
#define PROCESSOR_SOURCE_LINE_RESOLVER_H__
#include <string>
#include <ext/hash_map>
namespace google_airbag {
using std::string;
using __gnu_cxx::hash_map;
class StackFrame;
class SourceLineResolver {
public:
typedef unsigned long long MemAddr;
SourceLineResolver();
~SourceLineResolver();
// Adds a module to this resolver, returning true on success.
//
// module_name may be an arbitrary string. Typically, it will be the
// filename of the module, optionally with version identifiers.
//
// map_file should contain line/address mappings for this module.
bool LoadModule(const string &module_name, const string &map_file);
// Fills in the function_base, function_name, source_file_name,
// and source_line fields of the StackFrame. The instruction and
// module_name fields must already be filled in.
void FillSourceLineInfo(StackFrame *frame) const;
private:
template<class T> class MemAddrMap;
struct Line;
struct Function;
struct File;
struct HashString {
size_t operator()(const string &s) const;
};
class Module;
// All of the modules we've loaded
typedef hash_map<string, Module*, HashString> ModuleMap;
ModuleMap *modules_;
// Disallow unwanted copy ctor and assignment operator
SourceLineResolver(const SourceLineResolver&);
void operator=(const SourceLineResolver&);
};
} // namespace google_airbag
#endif // PROCESSOR_SOURCE_LINE_RESOLVER_H__
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