/*
 * See the dyninst/COPYRIGHT file for copyright information.
 * 
 * We provide the Paradyn Tools (below described as "Paradyn")
 * on an AS IS basis, and do not warrant its validity or performance.
 * We reserve the right to update, modify, or discontinue this
 * software at any time.  We shall have no obligation to supply such
 * updates or modifications or any other form of support to you.
 * 
 * By your use of Paradyn, you understand and agree that we (or any
 * other person or entity with proprietary rights in Paradyn) are
 * under no obligation to provide either maintenance services,
 * update services, notices of latent defects, or correction of
 * defects for Paradyn.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef SYMLOOKUP_H_
#define SYMLOOKUP_H_

#include <string>
#include "basetypes.h"

namespace Dyninst {
namespace Stackwalker {

class Walker;
class ProcessState;

class SW_EXPORT SymbolLookup {
  friend class Walker;
 protected:
  Walker *walker;
 public:
  SymbolLookup(std::string exec_path = "");
  virtual ~SymbolLookup();

  virtual bool lookupAtAddr(Dyninst::Address addr, 
                            std::string &out_name, 
                            void* &out_value) = 0;
  
  virtual Walker *getWalker();
  virtual ProcessState *getProcessState();
 private:
  std::string executable_path;
};

class SW_EXPORT SwkSymtab : public SymbolLookup {
 public:
    SwkSymtab(std::string exec_name);
    virtual bool lookupAtAddr(Dyninst::Address addr, 
                              std::string &out_name, 
                              void* &out_value);
    virtual ~SwkSymtab();
};

class SymDefaultLookup : public SymbolLookup {
  public:
    SymDefaultLookup(std::string exec_name);
    virtual bool lookupAtAddr(Dyninst::Address addr, 
                              std::string &out_name, 
                              void* &out_value);
    virtual ~SymDefaultLookup();
};

}
}

#endif
