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// -*- C++ -*-
 
// Copyright (C) 2004, 2005, 2006, 2007, 2009 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 3, 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 COPYING3.  If not see
// <http://www.gnu.org/licenses/>.
 
 
// Benjamin Kosnik  <bkoz@redhat.com>
// Blame subsequent hacks on Loren J. Rittle <ljrittle@acm.org>, Phil
// Edwards <pme@gcc.gnu.org>, and a cast of dozens at libstdc++@gcc.gnu.org.
 
#include "testsuite_abi.h"
#include <iostream>
#include <cstdlib>
#include <unistd.h>    // for access(2)
 
int
main(int argc, char** argv)
{
  using namespace std;
 
  // Get arguments.  (Heading towards getopt_long, I can feel it.)
  string argv1 = argc > 1 ? argv[1] : "";
  if (argv1 == "--help" || argc < 4)
    {
      cerr << "usage: abi_check --check         current baseline\n"
              "                 --check-verbose current baseline\n"
              "                 --examine       symbol current\n"
              "                 --help\n"
	      "\n"
              "All arguments are string literals.\n"
	      "CURRENT is a file generated byextract_symvers.\n"
              "BASELINE is a file from config/abi.\n"
              "SYMBOL is a mangled name.\n"
	   << endl;
      exit(1);
    }
 
  if (argv1.find("--check") != string::npos)
    {
      bool verbose = false;
      if (argv1 == "--check-verbose")
	verbose = true;
 
      // Quick sanity/setup check for arguments.
      const char* test_file = argv[2];
      const char* baseline_file = argv[3];
      if (access(test_file, R_OK) != 0)
	{
	  cerr << "Cannot read symbols file " << test_file
	       << ", did you forget to build first?" << endl;
	  exit(1);
	}
      if (access(baseline_file, R_OK) != 0)
	{
	  cerr << "Cannot read baseline file " << baseline_file << endl;
	exit(1);
	}
      if (!compare_symbols(baseline_file, test_file, verbose))
	exit (1);
    }
 
  if (argv1 == "--examine")
    {
      const char* file = argv[3];
      if (access(file, R_OK) != 0)
	{
	  cerr << "Cannot read symbol file " << file << endl;
	  exit(1);
	}
      examine_symbol(argv[2], file);
    }
  return 0;
}