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7e1edb90 ILT |
1 | // parameters.cc -- general parameters for a link using gold |
2 | ||
ebdbb458 | 3 | // Copyright 2006, 2007, 2008 Free Software Foundation, Inc. |
6cb15b7f ILT |
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 | #include "gold.h" |
24 | ||
ee1fe73e | 25 | #include "debug.h" |
7e1edb90 | 26 | #include "options.h" |
96803768 | 27 | #include "target.h" |
8851ecca | 28 | #include "target-select.h" |
7e1edb90 ILT |
29 | |
30 | namespace gold | |
31 | { | |
32 | ||
8851ecca ILT |
33 | void |
34 | Parameters::set_errors(Errors* errors) | |
7e1edb90 | 35 | { |
8851ecca ILT |
36 | gold_assert(this->errors_ == NULL); |
37 | this->errors_ = errors; | |
3c2fafa5 ILT |
38 | } |
39 | ||
3c2fafa5 | 40 | void |
8851ecca | 41 | Parameters::set_options(const General_options* options) |
3c2fafa5 | 42 | { |
8851ecca ILT |
43 | gold_assert(!this->options_valid()); |
44 | this->options_ = options; | |
ee1fe73e ILT |
45 | // For speed, we convert the options() debug var from a string to an |
46 | // enum (from debug.h). | |
47 | this->debug_ = debug_string_to_enum(this->options().debug()); | |
2285a610 ILT |
48 | // If --verbose is set, it acts as "--debug=files". |
49 | if (options->verbose()) | |
50 | this->debug_ |= DEBUG_FILES; | |
7e1edb90 ILT |
51 | } |
52 | ||
b3b74ddc ILT |
53 | void |
54 | Parameters::set_doing_static_link(bool doing_static_link) | |
55 | { | |
8851ecca | 56 | gold_assert(!this->doing_static_link_valid_); |
b3b74ddc | 57 | this->doing_static_link_ = doing_static_link; |
8851ecca | 58 | this->doing_static_link_valid_ = true; |
b3b74ddc ILT |
59 | } |
60 | ||
9025d29d | 61 | void |
8851ecca | 62 | Parameters::set_target(const Target* target) |
9025d29d | 63 | { |
8851ecca ILT |
64 | if (!this->target_valid()) |
65 | this->target_ = target; | |
9025d29d | 66 | else |
96803768 | 67 | gold_assert(target == this->target_); |
9025d29d ILT |
68 | } |
69 | ||
8851ecca ILT |
70 | // The x86_64 kernel build converts a binary file to an object file |
71 | // using -r --format binary --oformat elf32-i386 foo.o. In order to | |
72 | // support that for gold we support determining the default target | |
73 | // choice from the output format. We recognize names that the GNU | |
74 | // linker uses. | |
9025d29d | 75 | |
8851ecca ILT |
76 | const Target& |
77 | Parameters::default_target() const | |
78 | { | |
79 | gold_assert(this->options_valid()); | |
7dfac99f | 80 | if (this->options().user_set_oformat()) |
8851ecca ILT |
81 | { |
82 | const Target* target | |
7cc619c3 | 83 | = select_target_by_name(this->options().oformat()); |
8851ecca ILT |
84 | if (target != NULL) |
85 | return *target; | |
7e1edb90 | 86 | |
8851ecca | 87 | gold_error(_("unrecognized output format %s"), |
7cc619c3 | 88 | this->options().oformat()); |
8851ecca | 89 | } |
7e1edb90 | 90 | |
8851ecca ILT |
91 | // The GOLD_DEFAULT_xx macros are defined by the configure script. |
92 | const Target* target = select_target(elfcpp::GOLD_DEFAULT_MACHINE, | |
93 | GOLD_DEFAULT_SIZE, | |
94 | GOLD_DEFAULT_BIG_ENDIAN, | |
95 | 0, 0); | |
96 | gold_assert(target != NULL); | |
97 | return *target; | |
98 | } | |
7e1edb90 | 99 | |
8851ecca ILT |
100 | Parameters::Target_size_endianness |
101 | Parameters::size_and_endianness() const | |
3c2fafa5 | 102 | { |
8851ecca ILT |
103 | if (this->target().get_size() == 32) |
104 | { | |
105 | if (!this->target().is_big_endian()) | |
106 | { | |
107 | #ifdef HAVE_TARGET_32_LITTLE | |
108 | return TARGET_32_LITTLE; | |
109 | #else | |
110 | gold_unreachable(); | |
111 | #endif | |
112 | } | |
113 | else | |
114 | { | |
115 | #ifdef HAVE_TARGET_32_BIG | |
116 | return TARGET_32_BIG; | |
117 | #else | |
118 | gold_unreachable(); | |
119 | #endif | |
120 | } | |
121 | } | |
122 | else if (parameters->target().get_size() == 64) | |
123 | { | |
124 | if (!parameters->target().is_big_endian()) | |
125 | { | |
126 | #ifdef HAVE_TARGET_64_LITTLE | |
127 | return TARGET_64_LITTLE; | |
128 | #else | |
129 | gold_unreachable(); | |
130 | #endif | |
131 | } | |
132 | else | |
133 | { | |
134 | #ifdef HAVE_TARGET_64_BIG | |
135 | return TARGET_64_BIG; | |
136 | #else | |
137 | gold_unreachable(); | |
138 | #endif | |
139 | } | |
140 | } | |
141 | else | |
142 | gold_unreachable(); | |
3c2fafa5 ILT |
143 | } |
144 | ||
3c2fafa5 | 145 | |
8851ecca ILT |
146 | // Our local version of the variable, which is not const. |
147 | ||
148 | static Parameters static_parameters; | |
149 | ||
150 | // The global variable. | |
9025d29d | 151 | |
8851ecca | 152 | const Parameters* parameters = &static_parameters; |
b3b74ddc ILT |
153 | |
154 | void | |
8851ecca ILT |
155 | set_parameters_errors(Errors* errors) |
156 | { static_parameters.set_errors(errors); } | |
b3b74ddc | 157 | |
8851ecca ILT |
158 | void |
159 | set_parameters_options(const General_options* options) | |
160 | { static_parameters.set_options(options); } | |
b3b74ddc | 161 | |
9025d29d | 162 | void |
8851ecca ILT |
163 | set_parameters_target(const Target* target) |
164 | { static_parameters.set_target(target); } | |
165 | ||
166 | void | |
167 | set_parameters_doing_static_link(bool doing_static_link) | |
168 | { static_parameters.set_doing_static_link(doing_static_link); } | |
7e1edb90 ILT |
169 | |
170 | } // End namespace gold. |