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// -*- C++ -*-

// Copyright (C) 2004, 2005 Free Software Foundation, Inc.

// This library is free software; you can redistribute it and/or

// modify it under the terms of the GNU General Public License as

// published by the Free Software Foundation; either version 2, 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

// General Public License for more details.

// You should have received a copy of the GNU General Public License

// along with this library; see the file COPYING.  If not, write to

// the Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,

// MA 02110-1301, USA.

// As a special exception, you may use this file as part of a free

// software library without restriction.  Specifically, if other files

// instantiate templates or use macros or inline functions from this

// file, or you compile this file and link it with other files to

// produce an executable, this file does not by itself cause the

// resulting executable to be covered by the GNU General Public

// License.  This exception does not however invalidate any other

// reasons why the executable file might be covered by the GNU General

// Public License.

// Benjamin Kosnik  <bkoz@redhat.com>

#include <string>

#include <stdexcept>

#include <deque>

#include <ext/hash_map>

#include <cxxabi.h>

// Encapsulates symbol characteristics.

struct symbol

{

  enum category { function, object, uncategorized };

  enum designation { existing, added, subtracted, undesignated };

  enum version { none, compatible, incompatible, unversioned };

  enum compatibility

    {

      compat_type = 1,

      compat_name = 2,

      compat_size = 4,

      compat_version = 8

    };

  category      type;

  std::string   name;

  std::string   raw_name; // Name with versioning info still attached.

  std::string   demangled_name;

  int           size;

  std::string   version_name;

  version       version_status;

  designation   status;

  symbol()

  : type(uncategorized), size(0), version_status(unversioned),

    status(undesignated) { }

  symbol(const symbol& other)

  : type(other.type), name(other.name), demangled_name(other.demangled_name),

    size(other.size), version_name(other.version_name),

    version_status(other.version_status), status(other.status) { }

  void

  print() const;

  void

  init(std::string& data);

};

typedef __gnu_cxx::hash_map<std::string, symbol>        symbol_objects;

typedef std::deque<std::string>                         symbol_names;

typedef std::pair<symbol_names, symbol_objects>         symbols;

// Check.

bool

check_version(symbol& test, bool added = false);

bool

check_compatible(symbol& lhs, symbol& rhs, bool verbose = false);

// Examine.

bool

has_symbol(const std::string& mangled, const symbols& list) throw();

symbol&

get_symbol(const std::string& mangled, const symbols& list);

extern "C" void

examine_symbol(const char* name, const char* file);

extern "C" int

compare_symbols(const char* baseline_file, const char* test_file, bool verb);

// Util.

symbols

create_symbols(const char* file);

const char*

demangle(const std::string& mangled);

// Specialization.

namespace __gnu_cxx

{

  using namespace std;

  template<>

    struct hash<string>

    {

      size_t operator()(const string& s) const

      {

        const collate<char>& c = use_facet<collate<char> >(locale::classic());

        return c.hash(s.c_str(), s.c_str() + s.size());

      }

    };

}