| 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 | // Initialize the global parameters, to let random code get to the |
| 58 | // errors object. |
| 59 | initialize_parameters(&errors); |
| 60 | |
| 61 | // Handle the command line options. |
| 62 | Command_line command_line; |
| 63 | command_line.process(argc - 1, argv + 1); |
| 64 | |
| 65 | long start_time = 0; |
| 66 | if (command_line.options().print_stats()) |
| 67 | start_time = get_run_time(); |
| 68 | |
| 69 | // Store some options in the globally accessible parameters. |
| 70 | set_parameters_from_options(&command_line.options()); |
| 71 | |
| 72 | // The work queue. |
| 73 | Workqueue workqueue(command_line.options()); |
| 74 | |
| 75 | // The list of input objects. |
| 76 | Input_objects input_objects; |
| 77 | |
| 78 | // The symbol table. We're going to guess here how many symbols |
| 79 | // we're going to see based on the number of input files. Even when |
| 80 | // this is off, it means at worse we don't quite optimize hashtable |
| 81 | // resizing as well as we could have (perhap using more memory). |
| 82 | Symbol_table symtab(command_line.number_of_input_files() * 1024); |
| 83 | |
| 84 | // The layout object. |
| 85 | Layout layout(command_line.options()); |
| 86 | |
| 87 | // Get the search path from the -L options. |
| 88 | Dirsearch search_path; |
| 89 | search_path.initialize(&workqueue, &command_line.options().search_path()); |
| 90 | |
| 91 | // Queue up the first set of tasks. |
| 92 | queue_initial_tasks(command_line.options(), search_path, |
| 93 | command_line, &workqueue, &input_objects, |
| 94 | &symtab, &layout); |
| 95 | |
| 96 | // Run the main task processing loop. |
| 97 | workqueue.process(0); |
| 98 | |
| 99 | if (command_line.options().print_stats()) |
| 100 | { |
| 101 | long run_time = get_run_time() - start_time; |
| 102 | fprintf(stderr, _("%s: total run time: %ld.%06ld seconds\n"), |
| 103 | program_name, run_time / 1000000, run_time % 1000000); |
| 104 | #ifdef HAVE_MALLINFO |
| 105 | struct mallinfo m = mallinfo(); |
| 106 | fprintf(stderr, _("%s: total space allocated by malloc: %d bytes\n"), |
| 107 | program_name, m.arena); |
| 108 | #endif |
| 109 | File_read::print_stats(); |
| 110 | fprintf(stderr, _("%s: output file size: %lld bytes\n"), |
| 111 | program_name, static_cast<long long>(layout.output_file_size())); |
| 112 | symtab.print_stats(); |
| 113 | layout.print_stats(); |
| 114 | } |
| 115 | |
| 116 | gold_exit(errors.error_count() == 0); |
| 117 | } |