libstdc++-v3/testsuite/testsuite_abi_check.cc

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2004 Free Software Foundation, Inc.
   4
   5 // This library is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU General Public License as
   7 // published by the Free Software Foundation; either version 2, or (at
   8 // your option) any later version.
   9
  10 // This library is distributed in the hope that it will be useful, but
  11 // WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 // General Public License for more details.
  14
  15 // You should have received a copy of the GNU General Public License
  16 // along with this library; see the file COPYING.  If not, write to
  17 // the Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
  18 // MA 02110-1301, USA.
  19
  20 // As a special exception, you may use this file as part of a free
  21 // software library without restriction.  Specifically, if other files
  22 // instantiate templates or use macros or inline functions from this
  23 // file, or you compile this file and link it with other files to
  24 // produce an executable, this file does not by itself cause the
  25 // resulting executable to be covered by the GNU General Public
  26 // License.  This exception does not however invalidate any other
  27 // reasons why the executable file might be covered by the GNU General
  28 // Public License.
  29
  30 // Benjamin Kosnik  <bkoz@redhat.com>
  31 // Blame subsequent hacks on Loren J. Rittle <ljrittle@acm.org>, Phil
  32 // Edwards <pme@gcc.gnu.org>, and a cast of dozens at libstdc++@gcc.gnu.org.
  33
  34 #include "testsuite_abi.h"
  35 #include <iostream>
  36 #include <unistd.h>    // for access(2)
  37
  38 int
  39 main(int argc, char** argv)
  40 {
  41   using namespace std;
  42
  43   // Get arguments.  (Heading towards getopt_long, I can feel it.)
  44   string argv1 = argc > 1 ? argv[1] : "";
  45   if (argv1 == "--help" || argc < 4)
  46     {
  47       cerr << "usage: abi_check --check         current baseline\n"
  48               "                 --check-verbose current baseline\n"
  49               "                 --examine       symbol current\n"
  50               "                 --help\n"
  51               "\n"
  52               "All arguments are string literals.\n"
  53               "CURRENT is a file generated byextract_symvers.\n"
  54               "BASELINE is a file from config/abi.\n"
  55               "SYMBOL is a mangled name.\n"
  56            << endl;
  57       exit(1);
  58     }
  59
  60   if (argv1.find("--check") != string::npos)
  61     {
  62       bool verbose = false;
  63       if (argv1 == "--check-verbose")
  64         verbose = true;
  65
  66       // Quick sanity/setup check for arguments.
  67       const char* test_file = argv[2];
  68       const char* baseline_file = argv[3];
  69       if (access(test_file, R_OK) != 0)
  70         {
  71           cerr << "Cannot read symbols file " << test_file
  72                << ", did you forget to build first?" << endl;
  73           exit(1);
  74         }
  75       if (access(baseline_file, R_OK) != 0)
  76         {
  77           cerr << "Cannot read baseline file " << baseline_file << endl;
  78         exit(1);
  79         }
  80       if (!compare_symbols(baseline_file, test_file, verbose))
  81         exit (1);
  82     }
  83
  84   if (argv1 == "--examine")
  85     {
  86       const char* file = argv[3];
  87       if (access(file, R_OK) != 0)
  88         {
  89           cerr << "Cannot read symbol file " << file << endl;
  90           exit(1);
  91         }
  92       examine_symbol(argv[2], file);
  93     }
  94   return 0;
  95 }