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7e1edb90 ILT |
1 | // parameters.h -- general parameters for a link using gold -*- C++ -*- |
2 | ||
6cb15b7f ILT |
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 | ||
7e1edb90 ILT |
23 | #ifndef GOLD_PARAMETERS_H |
24 | #define GOLD_PARAMETERS_H | |
25 | ||
26 | namespace gold | |
27 | { | |
28 | ||
29 | class General_options; | |
75f2446e | 30 | class Errors; |
7e1edb90 ILT |
31 | |
32 | // Here we define the Parameters class which simply holds simple | |
33 | // general parameters which apply to the entire link. We use a global | |
34 | // variable for this. This is in contrast to the General_options | |
35 | // class, which holds the complete state of position independent | |
36 | // command line options. The hope is that Parameters will stay fairly | |
37 | // simple, so that if this turns into a library it will be clear how | |
38 | // these parameters should be set. | |
39 | ||
40 | class Parameters | |
41 | { | |
42 | public: | |
75f2446e ILT |
43 | Parameters(const General_options*, Errors*); |
44 | ||
45 | // Return the error object. | |
46 | Errors* | |
47 | errors() const | |
48 | { return this->errors_; } | |
49 | ||
50 | // Return the output file name. | |
51 | const char* | |
52 | output_file_name() const | |
53 | { return this->output_file_name_; } | |
7e1edb90 ILT |
54 | |
55 | // Whether we are generating a regular executable. | |
56 | bool | |
57 | output_is_executable() const | |
58 | { return this->output_file_type_ == OUTPUT_EXECUTABLE; } | |
59 | ||
60 | // Whether we are generating a shared library. | |
61 | bool | |
62 | output_is_shared() const | |
63 | { return this->output_file_type_ == OUTPUT_SHARED; } | |
64 | ||
65 | // Whether we are generating an object file. | |
66 | bool | |
67 | output_is_object() const | |
68 | { return this->output_file_type_ == OUTPUT_OBJECT; } | |
69 | ||
436ca963 ILT |
70 | // Whether we are generating position-independent output. |
71 | // This is the case when generating either a shared library | |
72 | // or a regular executable with the --pic-executable option. | |
73 | // FIXME: support --pic-executable | |
74 | bool | |
75 | output_is_position_independent() const | |
76 | { return output_is_shared(); } | |
77 | ||
ad2d6943 ILT |
78 | // The target system root directory. This is NULL if there isn't |
79 | // one. | |
80 | const std::string& | |
81 | sysroot() const | |
82 | { return this->sysroot_; } | |
83 | ||
9e2dcb77 ILT |
84 | // Whether to strip all symbols. |
85 | bool | |
86 | strip_all() const | |
87 | { return this->strip_ == STRIP_ALL; } | |
88 | ||
89 | // Whether to strip debugging information. | |
90 | bool | |
91 | strip_debug() const | |
92 | { return this->strip_ == STRIP_ALL || this->strip_ == STRIP_DEBUG; } | |
93 | ||
51b08ebe ILT |
94 | // Whether we are doing a symbolic link, in which all defined |
95 | // symbols are bound locally. | |
96 | bool | |
97 | symbolic() const | |
98 | { return this->symbolic_; } | |
99 | ||
b3b74ddc ILT |
100 | // Whether we are doing a static link--a link in which none of the |
101 | // input files are shared libraries. This is only known after we | |
102 | // have seen all the input files. | |
103 | bool | |
104 | doing_static_link() const | |
105 | { | |
106 | gold_assert(this->is_doing_static_link_valid_); | |
107 | return this->doing_static_link_; | |
108 | } | |
109 | ||
9025d29d ILT |
110 | // The size of the output file we are generating. This should |
111 | // return 32 or 64. | |
112 | int | |
113 | get_size() const | |
114 | { | |
115 | gold_assert(this->is_size_and_endian_valid_); | |
116 | return this->size_; | |
117 | } | |
118 | ||
119 | // Whether the output is big endian. | |
120 | bool | |
121 | is_big_endian() const | |
122 | { | |
123 | gold_assert(this->is_size_and_endian_valid_); | |
124 | return this->is_big_endian_; | |
125 | } | |
126 | ||
7e1edb90 ILT |
127 | // The general linker optimization level. |
128 | int | |
129 | optimization_level() const | |
130 | { return this->optimization_level_; } | |
131 | ||
436ca963 ILT |
132 | // Whether the -E/--export-dynamic flag is set. |
133 | bool | |
134 | export_dynamic() const | |
135 | { return this->export_dynamic_; } | |
136 | ||
b3b74ddc ILT |
137 | // Set whether we are doing a static link. |
138 | void | |
139 | set_doing_static_link(bool doing_static_link); | |
140 | ||
9025d29d ILT |
141 | // Set the size and endianness. |
142 | void | |
143 | set_size_and_endianness(int size, bool is_big_endian); | |
144 | ||
7e1edb90 ILT |
145 | private: |
146 | // The types of output files. | |
147 | enum Output_file_type | |
148 | { | |
149 | // Generating executable. | |
150 | OUTPUT_EXECUTABLE, | |
151 | // Generating shared library. | |
152 | OUTPUT_SHARED, | |
153 | // Generating object file. | |
154 | OUTPUT_OBJECT | |
155 | }; | |
156 | ||
9e2dcb77 ILT |
157 | // Which symbols to strip. |
158 | enum Strip | |
159 | { | |
160 | // Don't strip any symbols. | |
161 | STRIP_NONE, | |
162 | // Strip all symbols. | |
163 | STRIP_ALL, | |
164 | // Strip debugging information. | |
165 | STRIP_DEBUG | |
166 | }; | |
167 | ||
75f2446e ILT |
168 | // A pointer to the error handling object. |
169 | Errors* errors_; | |
170 | ||
171 | // The output file name. | |
172 | const char* output_file_name_; | |
7e1edb90 ILT |
173 | // The type of the output file. |
174 | Output_file_type output_file_type_; | |
ad2d6943 ILT |
175 | // The target system root directory. |
176 | std::string sysroot_; | |
9e2dcb77 ILT |
177 | // Which symbols to strip. |
178 | Strip strip_; | |
51b08ebe ILT |
179 | // Whether we are doing a symbolic link. |
180 | bool symbolic_; | |
9e2dcb77 | 181 | |
b3b74ddc ILT |
182 | // Whether the doing_static_link_ field is valid. |
183 | bool is_doing_static_link_valid_; | |
184 | // Whether we are doing a static link. | |
185 | bool doing_static_link_; | |
9025d29d ILT |
186 | // Whether the size_ and is_big_endian_ fields are valid. |
187 | bool is_size_and_endian_valid_; | |
188 | // The size of the output file--32 or 64. | |
189 | int size_; | |
190 | // Whether the output file is big endian. | |
191 | bool is_big_endian_; | |
7e1edb90 ILT |
192 | // The optimization level. |
193 | int optimization_level_; | |
436ca963 ILT |
194 | // Whether the -E/--export-dynamic flag is set. |
195 | bool export_dynamic_; | |
7e1edb90 ILT |
196 | }; |
197 | ||
198 | // This is a global variable. | |
199 | extern const Parameters* parameters; | |
200 | ||
201 | // Initialize the global variable. | |
75f2446e | 202 | extern void initialize_parameters(const General_options*, Errors*); |
7e1edb90 | 203 | |
9025d29d ILT |
204 | // Set the size and endianness of the global parameters variable. |
205 | extern void set_parameters_size_and_endianness(int size, bool is_big_endian); | |
206 | ||
b3b74ddc ILT |
207 | // Set whether we are doing a static link. |
208 | extern void set_parameters_doing_static_link(bool doing_static_link); | |
209 | ||
7e1edb90 ILT |
210 | } // End namespace gold. |
211 | ||
eb4dfdd4 | 212 | #endif // !defined(GOLD_PARAMETERS_H) |