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bae7f79e ILT |
1 | // options.h -- handle command line options for gold -*- C++ -*- |
2 | ||
3 | // Command_line | |
4 | // Holds everything we get from the command line. | |
5 | // General_options (from Command_line::options()) | |
6 | // Options which are not position dependent. | |
7 | // Input_argument (from Command_line::inputs()) | |
8 | // The list of input files, including -l options. | |
9 | // Position_dependent_options (from Input_argument::options()) | |
10 | // Position dependent options which apply to this argument. | |
11 | ||
12 | #ifndef GOLD_OPTIONS_H | |
13 | #define GOLD_OPTIONS_H | |
14 | ||
15 | #include <list> | |
16 | ||
bae7f79e ILT |
17 | namespace gold |
18 | { | |
19 | ||
20 | class Command_line; | |
21 | ||
22 | namespace options { | |
23 | ||
24 | class Command_line_options; | |
25 | struct One_option; | |
26 | ||
27 | } // End namespace gold::options. | |
28 | ||
29 | // The position independent options which apply to the whole link. | |
30 | // There are a lot of them. | |
31 | ||
32 | class General_options | |
33 | { | |
34 | public: | |
35 | General_options(); | |
36 | ||
37 | // -L: Library search path. | |
38 | typedef std::list<const char*> Dir_list; | |
39 | ||
40 | const Dir_list& | |
41 | search_path() const | |
42 | { return this->search_path_; } | |
43 | ||
44 | // -r: Whether we are doing a relocatable link. | |
45 | bool | |
46 | is_relocatable() const | |
47 | { return this->is_relocatable_; } | |
48 | ||
49 | // --static: Whether doing a static link. | |
50 | bool | |
51 | is_static() const | |
52 | { return this->is_static_; } | |
53 | ||
54 | private: | |
55 | friend class Command_line; | |
56 | friend class options::Command_line_options; | |
57 | ||
58 | void | |
59 | add_to_search_path(const char* arg) | |
60 | { this->search_path_.push_back(arg); } | |
61 | ||
62 | void | |
63 | set_relocatable() | |
64 | { this->is_relocatable_ = true; } | |
65 | ||
66 | void | |
67 | set_static() | |
68 | { this->is_static_ = true; } | |
69 | ||
70 | Dir_list search_path_; | |
71 | bool is_relocatable_; | |
72 | bool is_static_; | |
73 | ||
74 | // Don't copy this structure. | |
75 | General_options(const General_options&); | |
76 | General_options& operator=(const General_options&); | |
77 | }; | |
78 | ||
79 | // The current state of the position dependent options. | |
80 | ||
81 | class Position_dependent_options | |
82 | { | |
83 | public: | |
84 | Position_dependent_options(); | |
85 | ||
86 | // -Bstatic: Whether we are searching for a static archive rather | |
87 | // -than a shared object. | |
88 | bool | |
89 | do_static_search() | |
90 | { return this->do_static_search_; } | |
91 | ||
92 | private: | |
93 | friend class Command_line; | |
94 | friend class options::Command_line_options; | |
95 | ||
96 | void | |
97 | set_static_search() | |
98 | { this->do_static_search_ = true; } | |
99 | ||
100 | void | |
101 | set_dynamic_search() | |
102 | { this->do_static_search_ = false; } | |
103 | ||
104 | bool do_static_search_; | |
105 | }; | |
106 | ||
107 | // A single file or library argument from the command line. | |
108 | ||
109 | class Input_argument | |
110 | { | |
111 | public: | |
112 | Input_argument(const char* name, const Position_dependent_options& options) | |
113 | : name_(name), options_(options) | |
114 | { } | |
115 | ||
116 | const char* | |
117 | name() const | |
118 | { return this->name_; } | |
119 | ||
120 | const Position_dependent_options& | |
121 | options() const | |
122 | { return this->options_; } | |
123 | ||
124 | bool | |
125 | is_lib() const | |
126 | { return this->name_[0] == '-' && this->name_[1] == 'l'; } | |
127 | ||
128 | const char* | |
129 | lib_basename() const | |
130 | { return this->name_ + 2; } | |
131 | ||
132 | private: | |
133 | const char* name_; | |
134 | Position_dependent_options options_; | |
135 | }; | |
136 | ||
137 | // All the information read from the command line. | |
138 | ||
139 | class Command_line | |
140 | { | |
141 | public: | |
142 | Command_line(); | |
143 | ||
144 | // Process the command line options. This will exit with an | |
145 | // appropriate error message if an unrecognized option is seen. | |
146 | void | |
147 | process(int argc, char** argv); | |
148 | ||
149 | const General_options& | |
150 | options() const | |
151 | { return this->options_; } | |
152 | ||
153 | typedef std::list<Input_argument> Input_argument_list; | |
154 | ||
155 | const Input_argument_list& | |
156 | inputs() const | |
157 | { return this->inputs_; } | |
158 | ||
159 | private: | |
160 | void usage() ATTRIBUTE_NORETURN; | |
161 | void usage(const char* msg, const char* opt) ATTRIBUTE_NORETURN; | |
162 | void usage(const char* msg, char opt) ATTRIBUTE_NORETURN; | |
163 | void apply_option(const gold::options::One_option&, const char*); | |
164 | ||
165 | General_options options_; | |
166 | Position_dependent_options position_options_; | |
167 | Input_argument_list inputs_; | |
168 | }; | |
169 | ||
170 | } // End namespace gold. | |
171 | ||
172 | #endif // !defined(GOLD_OPTIONS_H) |