1 // parameters.h -- general parameters for a link using gold -*- C++ -*-
3 // Copyright 2006, 2007 Free Software Foundation, Inc.
4 // Written by Ian Lance Taylor <iant@google.com>.
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 we are doing a static link--a link in which none of the
66 // input files are shared libraries. This is only known after we
67 // have seen all the input files.
69 doing_static_link() const
71 gold_assert(this->is_doing_static_link_valid_
);
72 return this->doing_static_link_
;
75 // The size of the output file we are generating. This should
80 gold_assert(this->is_size_and_endian_valid_
);
84 // Whether the output is big endian.
88 gold_assert(this->is_size_and_endian_valid_
);
89 return this->is_big_endian_
;
92 // The general linker optimization level.
94 optimization_level() const
95 { return this->optimization_level_
; }
97 // Set whether we are doing a static link.
99 set_doing_static_link(bool doing_static_link
);
101 // Set the size and endianness.
103 set_size_and_endianness(int size
, bool is_big_endian
);
106 // The types of output files.
107 enum Output_file_type
109 // Generating executable.
111 // Generating shared library.
113 // Generating object file.
117 // The type of the output file.
118 Output_file_type output_file_type_
;
119 // The target system root directory.
120 std::string sysroot_
;
122 // Whether the doing_static_link_ field is valid.
123 bool is_doing_static_link_valid_
;
124 // Whether we are doing a static link.
125 bool doing_static_link_
;
126 // Whether the size_ and is_big_endian_ fields are valid.
127 bool is_size_and_endian_valid_
;
128 // The size of the output file--32 or 64.
130 // Whether the output file is big endian.
132 // The optimization level.
133 int optimization_level_
;
136 // This is a global variable.
137 extern const Parameters
* parameters
;
139 // Initialize the global variable.
140 extern void initialize_parameters(const General_options
*);
142 // Set the size and endianness of the global parameters variable.
143 extern void set_parameters_size_and_endianness(int size
, bool is_big_endian
);
145 // Set whether we are doing a static link.
146 extern void set_parameters_doing_static_link(bool doing_static_link
);
148 } // End namespace gold.
150 #endif // !defined(GOLD_PARAMATERS_H)