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 "target.h"
  27 #include "parameters.h"
  28
  29 namespace gold
  30 {
  31
  32 // Initialize the parameters from the options.
  33
  34 Parameters::Parameters(Errors* errors)
  35   : errors_(errors), threads_(false), output_file_name_(NULL),
  36     output_file_type_(OUTPUT_INVALID), emit_relocs_(false), sysroot_(),
  37     strip_(STRIP_INVALID), allow_shlib_undefined_(false),
  38     symbolic_(false), demangle_(false), detect_odr_violations_(false),
  39     optimization_level_(0), export_dynamic_(false), debug_(0),
  40     is_doing_static_link_valid_(false), doing_static_link_(false),
  41     is_target_valid_(false), target_(NULL), size_(0), is_big_endian_(false),
  42     max_page_size_(0), common_page_size_(0)
  43 {
  44 }
  45
  46 // Set fields from the command line options.
  47
  48 void
  49 Parameters::set_from_options(const General_options* options)
  50 {
  51   this->threads_ = options->threads();
  52   this->output_file_name_ = options->output_file_name();
  53   this->emit_relocs_ = options->emit_relocs();
  54   this->sysroot_ = options->sysroot();
  55   this->allow_shlib_undefined_ = options->allow_shlib_undefined();
  56   this->symbolic_ = options->Bsymbolic();
  57   this->demangle_ = options->demangle();
  58   this->detect_odr_violations_ = options->detect_odr_violations();
  59   this->optimization_level_ = options->optimize();
  60   this->export_dynamic_ = options->export_dynamic();
  61   this->debug_ = options->debug();
  62
  63   if (options->shared())
  64     this->output_file_type_ = OUTPUT_SHARED;
  65   else if (options->relocatable())
  66     this->output_file_type_ = OUTPUT_OBJECT;
  67   else
  68     this->output_file_type_ = OUTPUT_EXECUTABLE;
  69
  70   if (options->strip_all())
  71     this->strip_ = STRIP_ALL;
  72   else if (options->strip_debug())
  73     this->strip_ = STRIP_DEBUG;
  74   else if (options->strip_debug_gdb())
  75     this->strip_ = STRIP_DEBUG_UNUSED_BY_GDB;
  76   else
  77     this->strip_ = STRIP_NONE;
  78
  79   this->max_page_size_ = options->max_page_size();
  80   this->common_page_size_ = options->common_page_size();
  81
  82   this->options_valid_ = true;
  83 }
  84
  85 // Set whether we are doing a static link.
  86
  87 void
  88 Parameters::set_doing_static_link(bool doing_static_link)
  89 {
  90   this->doing_static_link_ = doing_static_link;
  91   this->is_doing_static_link_valid_ = true;
  92 }
  93
  94 // Set the target.
  95
  96 void
  97 Parameters::set_target(Target* target)
  98 {
  99   if (!this->is_target_valid_)
 100     {
 101       this->target_ = target;
 102       this->size_ = target->get_size();
 103       this->is_big_endian_ = target->is_big_endian();
 104       this->is_target_valid_ = true;
 105     }
 106   else
 107     gold_assert(target == this->target_);
 108 }
 109
 110 // Our local version of the variable, which is not const.
 111
 112 static Parameters* static_parameters;
 113
 114 // The global variable.
 115
 116 const Parameters* parameters;
 117
 118 // Initialize the global variable.
 119
 120 void
 121 initialize_parameters(Errors* errors)
 122 {
 123   parameters = static_parameters = new Parameters(errors);
 124 }
 125
 126 // Set values from the options.
 127
 128 void
 129 set_parameters_from_options(const General_options* options)
 130 {
 131   static_parameters->set_from_options(options);
 132 }
 133
 134 // Set whether we are doing a static link.
 135
 136 void
 137 set_parameters_doing_static_link(bool doing_static_link)
 138 {
 139   static_parameters->set_doing_static_link(doing_static_link);
 140 }
 141
 142 // Set the target.
 143
 144 void
 145 set_parameters_target(Target* target)
 146 {
 147   static_parameters->set_target(target);
 148 }
 149
 150 } // End namespace gold.