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(const General_options* options)
  34   : sysroot_(options->sysroot()),
  35     is_doing_static_link_valid_(false), doing_static_link_(false),
  36     is_size_and_endian_valid_(false), size_(0), is_big_endian_(false),
  37     optimization_level_(options->optimization_level())
  38 {
  39   if (options->is_shared())
  40     this->output_file_type_ = OUTPUT_SHARED;
  41   else if (options->is_relocatable())
  42     this->output_file_type_ = OUTPUT_OBJECT;
  43   else
  44     this->output_file_type_ = OUTPUT_EXECUTABLE;
  45 }
  46
  47 // Set whether we are doing a static link.
  48
  49 void
  50 Parameters::set_doing_static_link(bool doing_static_link)
  51 {
  52   this->doing_static_link_ = doing_static_link;
  53   this->is_doing_static_link_valid_ = true;
  54 }
  55
  56 // Set the size and endianness.
  57
  58 void
  59 Parameters::set_size_and_endianness(int size, bool is_big_endian)
  60 {
  61   if (!this->is_size_and_endian_valid_)
  62     {
  63       this->size_ = size;
  64       this->is_big_endian_ = is_big_endian;
  65       this->is_size_and_endian_valid_ = true;
  66     }
  67   else
  68     {
  69       gold_assert(size == this->size_);
  70       gold_assert(is_big_endian == this->is_big_endian_);
  71     }
  72 }
  73
  74 // Our local version of the variable, which is not const.
  75
  76 static Parameters* static_parameters;
  77
  78 // The global variable.
  79
  80 const Parameters* parameters;
  81
  82 // Initialize the global variable.
  83
  84 void
  85 initialize_parameters(const General_options* options)
  86 {
  87   parameters = static_parameters = new Parameters(options);
  88 }
  89
  90 // Set whether we are doing a static link.
  91
  92 void
  93 set_parameters_doing_static_link(bool doing_static_link)
  94 {
  95   static_parameters->set_doing_static_link(doing_static_link);
  96 }
  97
  98 // Set the size and endianness.
  99
 100 void
 101 set_parameters_size_and_endianness(int size, bool is_big_endian)
 102 {
 103   static_parameters->set_size_and_endianness(size, is_big_endian);
 104 }
 105
 106 } // End namespace gold.