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), allow_shlib_undefined_(false),
  37     symbolic_(false), detect_odr_violations_(false),
  38     optimization_level_(0), export_dynamic_(false),
  39     is_doing_static_link_valid_(false), doing_static_link_(false),
  40     is_size_and_endian_valid_(false), size_(0), is_big_endian_(false)
  41 {
  42 }
  43
  44 // Set fields from the command line options.
  45
  46 void
  47 Parameters::set_from_options(const General_options* options)
  48 {
  49   this->output_file_name_ = options->output_file_name();
  50   this->sysroot_ = options->sysroot();
  51   this->allow_shlib_undefined_ = options->allow_shlib_undefined();
  52   this->symbolic_ = options->symbolic();
  53   this->detect_odr_violations_ = options->detect_odr_violations();
  54   this->optimization_level_ = options->optimization_level();
  55   this->export_dynamic_ = options->export_dynamic();
  56
  57   if (options->is_shared())
  58     this->output_file_type_ = OUTPUT_SHARED;
  59   else if (options->is_relocatable())
  60     this->output_file_type_ = OUTPUT_OBJECT;
  61   else
  62     this->output_file_type_ = OUTPUT_EXECUTABLE;
  63
  64   if (options->strip_all())
  65     this->strip_ = STRIP_ALL;
  66   else if (options->strip_debug())
  67     this->strip_ = STRIP_DEBUG;
  68   else
  69     this->strip_ = STRIP_NONE;
  70
  71   this->options_valid_ = true;
  72 }
  73
  74 // Set whether we are doing a static link.
  75
  76 void
  77 Parameters::set_doing_static_link(bool doing_static_link)
  78 {
  79   this->doing_static_link_ = doing_static_link;
  80   this->is_doing_static_link_valid_ = true;
  81 }
  82
  83 // Set the size and endianness.
  84
  85 void
  86 Parameters::set_size_and_endianness(int size, bool is_big_endian)
  87 {
  88   if (!this->is_size_and_endian_valid_)
  89     {
  90       this->size_ = size;
  91       this->is_big_endian_ = is_big_endian;
  92       this->is_size_and_endian_valid_ = true;
  93     }
  94   else
  95     {
  96       gold_assert(size == this->size_);
  97       gold_assert(is_big_endian == this->is_big_endian_);
  98     }
  99 }
 100
 101 // Our local version of the variable, which is not const.
 102
 103 static Parameters* static_parameters;
 104
 105 // The global variable.
 106
 107 const Parameters* parameters;
 108
 109 // Initialize the global variable.
 110
 111 void
 112 initialize_parameters(Errors* errors)
 113 {
 114   parameters = static_parameters = new Parameters(errors);
 115 }
 116
 117 // Set values from the options.
 118
 119 void
 120 set_parameters_from_options(const General_options* options)
 121 {
 122   static_parameters->set_from_options(options);
 123 }
 124
 125 // Set whether we are doing a static link.
 126
 127 void
 128 set_parameters_doing_static_link(bool doing_static_link)
 129 {
 130   static_parameters->set_doing_static_link(doing_static_link);
 131 }
 132
 133 // Set the size and endianness.
 134
 135 void
 136 set_parameters_size_and_endianness(int size, bool is_big_endian)
 137 {
 138   static_parameters->set_size_and_endianness(size, is_big_endian);
 139 }
 140
 141 } // End namespace gold.