gold/main.cc

   1 // main.cc -- gold main function.
   2
   3 // Copyright 2006, 2007 Free Software Foundation, Inc.
   4 // Written by Ian Lance Taylor <iant@google.com>.
   5
   6 // This file is part of gold.
   7
   8 // This program is free software; you can redistribute it and/or modify
   9 // it under the terms of the GNU General Public License as published by
  10 // the Free Software Foundation; either version 3 of the License, or
  11 // (at your option) any later version.
  12
  13 // This program is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // You should have received a copy of the GNU General Public License
  19 // along with this program; if not, write to the Free Software
  20 // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21 // MA 02110-1301, USA.
  22
  23 #include "gold.h"
  24
  25 #ifdef HAVE_MALLINFO
  26 #include <malloc.h>
  27 #endif
  28 #include "libiberty.h"
  29
  30 #include "options.h"
  31 #include "parameters.h"
  32 #include "errors.h"
  33 #include "dirsearch.h"
  34 #include "workqueue.h"
  35 #include "object.h"
  36 #include "symtab.h"
  37 #include "layout.h"
  38
  39 using namespace gold;
  40
  41 int
  42 main(int argc, char** argv)
  43 {
  44 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
  45   setlocale (LC_MESSAGES, "");
  46 #endif
  47 #if defined (HAVE_SETLOCALE)
  48   setlocale (LC_CTYPE, "");
  49 #endif
  50   bindtextdomain (PACKAGE, LOCALEDIR);
  51   textdomain (PACKAGE);
  52
  53   program_name = argv[0];
  54
  55   Errors errors(program_name);
  56
  57   // Handle the command line options.
  58   Command_line command_line;
  59   command_line.process(argc - 1, argv + 1);
  60
  61   long start_time = 0;
  62   if (command_line.options().print_stats())
  63     start_time = get_run_time();
  64
  65   initialize_parameters(&command_line.options(), &errors);
  66
  67   // The work queue.
  68   Workqueue workqueue(command_line.options());
  69
  70   // The list of input objects.
  71   Input_objects input_objects;
  72
  73   // The symbol table.
  74   Symbol_table symtab;
  75
  76   // The layout object.
  77   Layout layout(command_line.options());
  78
  79   // Get the search path from the -L options.
  80   Dirsearch search_path;
  81   search_path.initialize(&workqueue, &command_line.options().search_path());
  82
  83   // Queue up the first set of tasks.
  84   queue_initial_tasks(command_line.options(), search_path,
  85                       command_line, &workqueue, &input_objects,
  86                       &symtab, &layout);
  87
  88   // Run the main task processing loop.
  89   workqueue.process();
  90
  91   if (command_line.options().print_stats())
  92     {
  93       long run_time = get_run_time() - start_time;
  94       fprintf(stderr, _("%s: total run time: %ld.%06ld seconds\n"),
  95               program_name, run_time / 1000000, run_time % 1000000);
  96 #ifdef HAVE_MALLINFO
  97       struct mallinfo m = mallinfo();
  98       fprintf(stderr, _("%s: total space allocated by malloc: %d bytes\n"),
  99               program_name, m.arena);
 100 #endif
 101       File_read::print_stats();
 102       fprintf(stderr, _("%s: output file size: %lld bytes\n"),
 103               program_name, static_cast<long long>(layout.output_file_size()));
 104     }
 105
 106   gold_exit(errors.error_count() == 0);
 107 }