1 // parameters.h -- general parameters for a link using gold -*- C++ -*-
3 // Copyright 2006, 2007 Free Software Foundation, Inc.
6 // This file is part of gold.
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.
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.
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.
23 #ifndef GOLD_PARAMETERS_H
24 #define GOLD_PARAMETERS_H
29 class General_options;
31 // Here we define the Parameters class which simply holds simple
32 // general parameters which apply to the entire link. We use a global
33 // variable for this. This is in contrast to the General_options
34 // class, which holds the complete state of position independent
35 // command line options. The hope is that Parameters will stay fairly
36 // simple, so that if this turns into a library it will be clear how
37 // these parameters should be set.
42 Parameters(const General_options*);
44 // Whether we are generating a regular executable.
46 output_is_executable() const
47 { return this->output_file_type_ == OUTPUT_EXECUTABLE; }
49 // Whether we are generating a shared library.
51 output_is_shared() const
52 { return this->output_file_type_ == OUTPUT_SHARED; }
54 // Whether we are generating an object file.
56 output_is_object() const
57 { return this->output_file_type_ == OUTPUT_OBJECT; }
59 // The target system root directory. This is NULL if there isn't
63 { return this->sysroot_; }
65 // Whether to strip all symbols.
68 { return this->strip_ == STRIP_ALL; }
70 // Whether to strip debugging information.
73 { return this->strip_ == STRIP_ALL || this->strip_ == STRIP_DEBUG; }
75 // Whether we are doing a static link--a link in which none of the
76 // input files are shared libraries. This is only known after we
77 // have seen all the input files.
79 doing_static_link() const
81 gold_assert(this->is_doing_static_link_valid_);
82 return this->doing_static_link_;
85 // The size of the output file we are generating. This should
90 gold_assert(this->is_size_and_endian_valid_);
94 // Whether the output is big endian.
98 gold_assert(this->is_size_and_endian_valid_);
99 return this->is_big_endian_;
102 // The general linker optimization level.
104 optimization_level() const
105 { return this->optimization_level_; }
107 // Set whether we are doing a static link.
109 set_doing_static_link(bool doing_static_link);
111 // Set the size and endianness.
113 set_size_and_endianness(int size, bool is_big_endian);
116 // The types of output files.
117 enum Output_file_type
119 // Generating executable.
121 // Generating shared library.
123 // Generating object file.
127 // Which symbols to strip.
130 // Don't strip any symbols.
132 // Strip all symbols.
134 // Strip debugging information.
138 // The type of the output file.
139 Output_file_type output_file_type_;
140 // The target system root directory.
141 std::string sysroot_;
142 // Which symbols to strip.
145 // Whether the doing_static_link_ field is valid.
146 bool is_doing_static_link_valid_;
147 // Whether we are doing a static link.
148 bool doing_static_link_;
149 // Whether the size_ and is_big_endian_ fields are valid.
150 bool is_size_and_endian_valid_;
151 // The size of the output file--32 or 64.
153 // Whether the output file is big endian.
155 // The optimization level.
156 int optimization_level_;
159 // This is a global variable.
160 extern const Parameters* parameters;
162 // Initialize the global variable.
163 extern void initialize_parameters(const General_options*);
165 // Set the size and endianness of the global parameters variable.
166 extern void set_parameters_size_and_endianness(int size, bool is_big_endian);
168 // Set whether we are doing a static link.
169 extern void set_parameters_doing_static_link(bool doing_static_link);
171 } // End namespace gold.
173 #endif // !defined(GOLD_PARAMETERS_H)