libstdc++-v3/testsuite/util/testsuite_abi_check.cc

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2004-2019 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 3, 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 COPYING3.  If not see
  17 // <http://www.gnu.org/licenses/>.
  18
  19
  20 // Benjamin Kosnik  <bkoz@redhat.com>
  21 // Blame subsequent hacks on Loren J. Rittle <ljrittle@acm.org>, Phil
  22 // Edwards <pme@gcc.gnu.org>, and a cast of dozens at libstdc++@gcc.gnu.org.
  23
  24 #include "testsuite_abi.h"
  25 #include <iostream>
  26 #include <cstdlib>
  27 #include <unistd.h>    // for access(2)
  28
  29 int
  30 main(int argc, char** argv)
  31 {
  32   using namespace std;
  33
  34   // Get arguments.  (Heading towards getopt_long, I can feel it.)
  35   string argv1 = argc > 1 ? argv[1] : "";
  36   if (argv1 == "--help" || argc < 4)
  37     {
  38       cerr << "usage: abi_check --check         current baseline\n"
  39               "                 --check-verbose current baseline\n"
  40               "                 --examine       symbol current\n"
  41               "                 --help\n"
  42               "\n"
  43               "All arguments are string literals.\n"
  44               "CURRENT is a file generated byextract_symvers.\n"
  45               "BASELINE is a file from config/abi.\n"
  46               "SYMBOL is a mangled name.\n"
  47            << endl;
  48       exit(1);
  49     }
  50
  51   if (argv1.find("--check") != string::npos)
  52     {
  53       bool verbose = false;
  54       if (argv1 == "--check-verbose")
  55         verbose = true;
  56
  57       // Quick sanity/setup check for arguments.
  58       const char* test_file = argv[2];
  59       const char* baseline_file = argv[3];
  60       if (access(test_file, R_OK) != 0)
  61         {
  62           cerr << "Cannot read symbols file " << test_file
  63                << ", did you forget to build first?" << endl;
  64           exit(1);
  65         }
  66       if (access(baseline_file, R_OK) != 0)
  67         {
  68           cerr << "Cannot read baseline file " << baseline_file << endl;
  69         exit(1);
  70         }
  71       if (!compare_symbols(baseline_file, test_file, verbose))
  72         exit (1);
  73     }
  74
  75   if (argv1 == "--examine")
  76     {
  77       const char* file = argv[3];
  78       if (access(file, R_OK) != 0)
  79         {
  80           cerr << "Cannot read symbol file " << file << endl;
  81           exit(1);
  82         }
  83       examine_symbol(argv[2], file);
  84     }
  85   return 0;
  86 }