gold/parameters.cc

   1 // parameters.cc -- general parameters for a link using gold
   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 #include "options.h"
  26 #include "parameters.h"
  27
  28 namespace gold
  29 {
  30
  31 // Initialize the parameters from the options.
  32
  33 Parameters::Parameters(Errors* errors)
  34   : errors_(errors), output_file_name_(NULL),
  35     output_file_type_(OUTPUT_INVALID), sysroot_(),
  36     strip_(STRIP_INVALID), symbolic_(false),
  37     optimization_level_(0), export_dynamic_(false),
  38     is_doing_static_link_valid_(false), doing_static_link_(false),
  39     is_size_and_endian_valid_(false), size_(0), is_big_endian_(false)
  40 {
  41 }
  42
  43 // Set fields from the command line options.
  44
  45 void
  46 Parameters::set_from_options(const General_options* options)
  47 {
  48   this->output_file_name_ = options->output_file_name();
  49   this->sysroot_ = options->sysroot();
  50   this->symbolic_ = options->symbolic();
  51   this->optimization_level_ = options->optimization_level();
  52   this->export_dynamic_ = options->export_dynamic();
  53
  54   if (options->is_shared())
  55     this->output_file_type_ = OUTPUT_SHARED;
  56   else if (options->is_relocatable())
  57     this->output_file_type_ = OUTPUT_OBJECT;
  58   else
  59     this->output_file_type_ = OUTPUT_EXECUTABLE;
  60
  61   if (options->strip_all())
  62     this->strip_ = STRIP_ALL;
  63   else if (options->strip_debug())
  64     this->strip_ = STRIP_DEBUG;
  65   else
  66     this->strip_ = STRIP_NONE;
  67
  68   this->options_valid_ = true;
  69 }
  70
  71 // Set whether we are doing a static link.
  72
  73 void
  74 Parameters::set_doing_static_link(bool doing_static_link)
  75 {
  76   this->doing_static_link_ = doing_static_link;
  77   this->is_doing_static_link_valid_ = true;
  78 }
  79
  80 // Set the size and endianness.
  81
  82 void
  83 Parameters::set_size_and_endianness(int size, bool is_big_endian)
  84 {
  85   if (!this->is_size_and_endian_valid_)
  86     {
  87       this->size_ = size;
  88       this->is_big_endian_ = is_big_endian;
  89       this->is_size_and_endian_valid_ = true;
  90     }
  91   else
  92     {
  93       gold_assert(size == this->size_);
  94       gold_assert(is_big_endian == this->is_big_endian_);
  95     }
  96 }
  97
  98 // Our local version of the variable, which is not const.
  99
 100 static Parameters* static_parameters;
 101
 102 // The global variable.
 103
 104 const Parameters* parameters;
 105
 106 // Initialize the global variable.
 107
 108 void
 109 initialize_parameters(Errors* errors)
 110 {
 111   parameters = static_parameters = new Parameters(errors);
 112 }
 113
 114 // Set values from the options.
 115
 116 void
 117 set_parameters_from_options(const General_options* options)
 118 {
 119   static_parameters->set_from_options(options);
 120 }
 121
 122 // Set whether we are doing a static link.
 123
 124 void
 125 set_parameters_doing_static_link(bool doing_static_link)
 126 {
 127   static_parameters->set_doing_static_link(doing_static_link);
 128 }
 129
 130 // Set the size and endianness.
 131
 132 void
 133 set_parameters_size_and_endianness(int size, bool is_big_endian)
 134 {
 135   static_parameters->set_size_and_endianness(size, is_big_endian);
 136 }
 137
 138 } // End namespace gold.