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