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_size_and_endian_valid_(false), size_(0), is_big_endian_(false),
  35     optimization_level_(options->optimization_level())
  36 {
  37   if (options->is_shared())
  38     this->output_file_type_ = OUTPUT_SHARED;
  39   else if (options->is_relocatable())
  40     this->output_file_type_ = OUTPUT_OBJECT;
  41   else
  42     this->output_file_type_ = OUTPUT_EXECUTABLE;
  43 }
  44
  45 // Set the size and endianness.
  46
  47 void
  48 Parameters::set_size_and_endianness(int size, bool is_big_endian)
  49 {
  50   if (!this->is_size_and_endian_valid_)
  51     {
  52       this->size_ = size;
  53       this->is_big_endian_ = is_big_endian;
  54       this->is_size_and_endian_valid_ = true;
  55     }
  56   else
  57     {
  58       gold_assert(size == this->size_);
  59       gold_assert(is_big_endian == this->is_big_endian_);
  60     }
  61 }
  62
  63 // Our local version of the variable, which is not const.
  64
  65 static Parameters* static_parameters;
  66
  67 // The global variable.
  68
  69 const Parameters* parameters;
  70
  71 // Initialize the global variable.
  72
  73 void
  74 initialize_parameters(const General_options* options)
  75 {
  76   parameters = static_parameters = new Parameters(options);
  77 }
  78
  79 void
  80 set_parameters_size_and_endianness(int size, bool is_big_endian)
  81 {
  82   static_parameters->set_size_and_endianness(size, is_big_endian);
  83 }
  84
  85 } // End namespace gold.