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bae7f79e ILT |
1 | // options.h -- handle command line options for gold -*- C++ -*- |
2 | ||
6d03d481 | 3 | // Copyright 2006, 2007, 2008, 2009 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 | ||
bae7f79e | 23 | // General_options (from Command_line::options()) |
ee1fe73e | 24 | // All the options (a.k.a. command-line flags) |
bae7f79e ILT |
25 | // Input_argument (from Command_line::inputs()) |
26 | // The list of input files, including -l options. | |
ee1fe73e ILT |
27 | // Command_line |
28 | // Everything we get from the command line -- the General_options | |
29 | // plus the Input_arguments. | |
30 | // | |
31 | // There are also some smaller classes, such as | |
32 | // Position_dependent_options which hold a subset of General_options | |
33 | // that change as options are parsed (as opposed to the usual behavior | |
34 | // of the last instance of that option specified on the commandline wins). | |
bae7f79e ILT |
35 | |
36 | #ifndef GOLD_OPTIONS_H | |
37 | #define GOLD_OPTIONS_H | |
38 | ||
ca3a67a5 | 39 | #include <cstdlib> |
cbb93e63 | 40 | #include <cstring> |
bae7f79e | 41 | #include <list> |
61ba1cf9 | 42 | #include <string> |
92e059d8 | 43 | #include <vector> |
bae7f79e | 44 | |
0daa6f62 | 45 | #include "elfcpp.h" |
3c2fafa5 ILT |
46 | #include "script.h" |
47 | ||
bae7f79e ILT |
48 | namespace gold |
49 | { | |
50 | ||
51 | class Command_line; | |
ee1fe73e ILT |
52 | class General_options; |
53 | class Search_directory; | |
ead1e424 | 54 | class Input_file_group; |
3c2fafa5 | 55 | class Position_dependent_options; |
0daa6f62 | 56 | class Target; |
89fc3421 | 57 | class Plugin_manager; |
bae7f79e | 58 | |
266d0a74 ILT |
59 | // Incremental build action for a specific file, as selected by the user. |
60 | ||
61 | enum Incremental_disposition | |
62 | { | |
63 | // Determine the status from the timestamp (default). | |
64 | INCREMENTAL_CHECK, | |
65 | // Assume the file changed from the previous build. | |
66 | INCREMENTAL_CHANGED, | |
67 | // Assume the file didn't change from the previous build. | |
68 | INCREMENTAL_UNCHANGED | |
69 | }; | |
70 | ||
ee1fe73e ILT |
71 | // The nested namespace is to contain all the global variables and |
72 | // structs that need to be defined in the .h file, but do not need to | |
73 | // be used outside this class. | |
c7912668 ILT |
74 | namespace options |
75 | { | |
ee1fe73e | 76 | typedef std::vector<Search_directory> Dir_list; |
c5818ff1 | 77 | typedef Unordered_set<std::string> String_set; |
ee1fe73e ILT |
78 | |
79 | // These routines convert from a string option to various types. | |
80 | // Each gives a fatal error if it cannot parse the argument. | |
81 | ||
82 | extern void | |
83 | parse_bool(const char* option_name, const char* arg, bool* retval); | |
84 | ||
85 | extern void | |
86 | parse_uint(const char* option_name, const char* arg, int* retval); | |
87 | ||
88 | extern void | |
c18476e7 ILT |
89 | parse_uint64(const char* option_name, const char* arg, uint64_t* retval); |
90 | ||
91 | extern void | |
92 | parse_double(const char* option_name, const char* arg, double* retval); | |
ee1fe73e ILT |
93 | |
94 | extern void | |
95 | parse_string(const char* option_name, const char* arg, const char** retval); | |
96 | ||
086a1841 ILT |
97 | extern void |
98 | parse_optional_string(const char* option_name, const char* arg, | |
99 | const char** retval); | |
100 | ||
ee1fe73e ILT |
101 | extern void |
102 | parse_dirlist(const char* option_name, const char* arg, Dir_list* retval); | |
103 | ||
c5818ff1 CC |
104 | extern void |
105 | parse_set(const char* option_name, const char* arg, String_set* retval); | |
106 | ||
ee1fe73e ILT |
107 | extern void |
108 | parse_choices(const char* option_name, const char* arg, const char** retval, | |
109 | const char* choices[], int num_choices); | |
110 | ||
111 | struct Struct_var; | |
112 | ||
113 | // Most options have both a shortname (one letter) and a longname. | |
114 | // This enum controls how many dashes are expected for longname access | |
115 | // -- shortnames always use one dash. Most longnames will accept | |
116 | // either one dash or two; the only difference between ONE_DASH and | |
117 | // TWO_DASHES is how we print the option in --help. However, some | |
118 | // longnames require two dashes, and some require only one. The | |
119 | // special value DASH_Z means that the option is preceded by "-z". | |
120 | enum Dashes | |
121 | { | |
122 | ONE_DASH, TWO_DASHES, EXACTLY_ONE_DASH, EXACTLY_TWO_DASHES, DASH_Z | |
123 | }; | |
124 | ||
125 | // LONGNAME is the long-name of the option with dashes converted to | |
126 | // underscores, or else the short-name if the option has no long-name. | |
127 | // It is never the empty string. | |
128 | // DASHES is an instance of the Dashes enum: ONE_DASH, TWO_DASHES, etc. | |
129 | // SHORTNAME is the short-name of the option, as a char, or '\0' if the | |
130 | // option has no short-name. If the option has no long-name, you | |
131 | // should specify the short-name in *both* VARNAME and here. | |
132 | // DEFAULT_VALUE is the value of the option if not specified on the | |
133 | // commandline, as a string. | |
134 | // HELPSTRING is the descriptive text used with the option via --help | |
135 | // HELPARG is how you define the argument to the option. | |
136 | // --help output is "-shortname HELPARG, --longname HELPARG: HELPSTRING" | |
137 | // HELPARG should be NULL iff the option is a bool and takes no arg. | |
086a1841 ILT |
138 | // OPTIONAL_ARG is true if this option takes an optional argument. An |
139 | // optional argument must be specifid as --OPTION=VALUE, not | |
140 | // --OPTION VALUE. | |
ee1fe73e ILT |
141 | // READER provides parse_to_value, which is a function that will convert |
142 | // a char* argument into the proper type and store it in some variable. | |
143 | // A One_option struct initializes itself with the global list of options | |
144 | // at constructor time, so be careful making one of these. | |
145 | struct One_option | |
146 | { | |
147 | std::string longname; | |
148 | Dashes dashes; | |
149 | char shortname; | |
150 | const char* default_value; | |
151 | const char* helpstring; | |
152 | const char* helparg; | |
086a1841 | 153 | bool optional_arg; |
ee1fe73e ILT |
154 | Struct_var* reader; |
155 | ||
156 | One_option(const char* ln, Dashes d, char sn, const char* dv, | |
086a1841 | 157 | const char* hs, const char* ha, bool oa, Struct_var* r) |
ee1fe73e | 158 | : longname(ln), dashes(d), shortname(sn), default_value(dv ? dv : ""), |
086a1841 | 159 | helpstring(hs), helparg(ha), optional_arg(oa), reader(r) |
ee1fe73e ILT |
160 | { |
161 | // In longname, we convert all underscores to dashes, since GNU | |
162 | // style uses dashes in option names. longname is likely to have | |
163 | // underscores in it because it's also used to declare a C++ | |
164 | // function. | |
165 | const char* pos = strchr(this->longname.c_str(), '_'); | |
166 | for (; pos; pos = strchr(pos, '_')) | |
167 | this->longname[pos - this->longname.c_str()] = '-'; | |
168 | ||
169 | // We only register ourselves if our helpstring is not NULL. This | |
170 | // is to support the "no-VAR" boolean variables, which we | |
171 | // conditionally turn on by defining "no-VAR" help text. | |
172 | if (this->helpstring) | |
173 | this->register_option(); | |
174 | } | |
175 | ||
176 | // This option takes an argument iff helparg is not NULL. | |
177 | bool | |
178 | takes_argument() const | |
179 | { return this->helparg != NULL; } | |
180 | ||
086a1841 ILT |
181 | // Whether the argument is optional. |
182 | bool | |
183 | takes_optional_argument() const | |
184 | { return this->optional_arg; } | |
185 | ||
ee1fe73e ILT |
186 | // Register this option with the global list of options. |
187 | void | |
188 | register_option(); | |
189 | ||
190 | // Print this option to stdout (used with --help). | |
191 | void | |
192 | print() const; | |
193 | }; | |
194 | ||
195 | // All options have a Struct_##varname that inherits from this and | |
196 | // actually implements parse_to_value for that option. | |
197 | struct Struct_var | |
198 | { | |
199 | // OPTION: the name of the option as specified on the commandline, | |
200 | // including leading dashes, and any text following the option: | |
201 | // "-O", "--defsym=mysym=0x1000", etc. | |
202 | // ARG: the arg associated with this option, or NULL if the option | |
203 | // takes no argument: "2", "mysym=0x1000", etc. | |
204 | // CMDLINE: the global Command_line object. Used by DEFINE_special. | |
205 | // OPTIONS: the global General_options object. Used by DEFINE_special. | |
206 | virtual void | |
207 | parse_to_value(const char* option, const char* arg, | |
208 | Command_line* cmdline, General_options* options) = 0; | |
209 | virtual | |
210 | ~Struct_var() // To make gcc happy. | |
211 | { } | |
212 | }; | |
bae7f79e | 213 | |
ee1fe73e ILT |
214 | // This is for "special" options that aren't of any predefined type. |
215 | struct Struct_special : public Struct_var | |
216 | { | |
217 | // If you change this, change the parse-fn in DEFINE_special as well. | |
218 | typedef void (General_options::*Parse_function)(const char*, const char*, | |
219 | Command_line*); | |
220 | Struct_special(const char* varname, Dashes dashes, char shortname, | |
221 | Parse_function parse_function, | |
222 | const char* helpstring, const char* helparg) | |
086a1841 | 223 | : option(varname, dashes, shortname, "", helpstring, helparg, false, this), |
ee1fe73e ILT |
224 | parse(parse_function) |
225 | { } | |
226 | ||
227 | void parse_to_value(const char* option, const char* arg, | |
228 | Command_line* cmdline, General_options* options) | |
229 | { (options->*(this->parse))(option, arg, cmdline); } | |
230 | ||
231 | One_option option; | |
232 | Parse_function parse; | |
233 | }; | |
234 | ||
235 | } // End namespace options. | |
236 | ||
237 | ||
238 | // These are helper macros use by DEFINE_uint64/etc below. | |
239 | // This macro is used inside the General_options_ class, so defines | |
240 | // var() and set_var() as General_options methods. Arguments as are | |
241 | // for the constructor for One_option. param_type__ is the same as | |
242 | // type__ for built-in types, and "const type__ &" otherwise. | |
243 | #define DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
244 | default_value_as_string__, helpstring__, helparg__, \ | |
086a1841 | 245 | optional_arg__, type__, param_type__, parse_fn__) \ |
ee1fe73e ILT |
246 | public: \ |
247 | param_type__ \ | |
248 | varname__() const \ | |
249 | { return this->varname__##_.value; } \ | |
250 | \ | |
251 | bool \ | |
252 | user_set_##varname__() const \ | |
253 | { return this->varname__##_.user_set_via_option; } \ | |
254 | \ | |
2b706932 ILT |
255 | void \ |
256 | set_user_set_##varname__() \ | |
257 | { this->varname__##_.user_set_via_option = true; } \ | |
258 | \ | |
ee1fe73e ILT |
259 | private: \ |
260 | struct Struct_##varname__ : public options::Struct_var \ | |
261 | { \ | |
262 | Struct_##varname__() \ | |
263 | : option(#varname__, dashes__, shortname__, default_value_as_string__, \ | |
086a1841 | 264 | helpstring__, helparg__, optional_arg__, this), \ |
ee1fe73e ILT |
265 | user_set_via_option(false), value(default_value__) \ |
266 | { } \ | |
267 | \ | |
268 | void \ | |
269 | parse_to_value(const char* option_name, const char* arg, \ | |
270 | Command_line*, General_options*) \ | |
271 | { \ | |
272 | parse_fn__(option_name, arg, &this->value); \ | |
273 | this->user_set_via_option = true; \ | |
274 | } \ | |
275 | \ | |
276 | options::One_option option; \ | |
277 | bool user_set_via_option; \ | |
278 | type__ value; \ | |
279 | }; \ | |
280 | Struct_##varname__ varname__##_; \ | |
281 | void \ | |
282 | set_##varname__(param_type__ value) \ | |
283 | { this->varname__##_.value = value; } | |
284 | ||
285 | // These macros allow for easy addition of a new commandline option. | |
286 | ||
287 | // If no_helpstring__ is not NULL, then in addition to creating | |
d98bc257 ILT |
288 | // VARNAME, we also create an option called no-VARNAME (or, for a -z |
289 | // option, noVARNAME). | |
ee1fe73e ILT |
290 | #define DEFINE_bool(varname__, dashes__, shortname__, default_value__, \ |
291 | helpstring__, no_helpstring__) \ | |
292 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
293 | default_value__ ? "true" : "false", helpstring__, NULL, \ | |
086a1841 | 294 | false, bool, bool, options::parse_bool) \ |
ee1fe73e ILT |
295 | struct Struct_no_##varname__ : public options::Struct_var \ |
296 | { \ | |
d98bc257 ILT |
297 | Struct_no_##varname__() : option((dashes__ == options::DASH_Z \ |
298 | ? "no" #varname__ \ | |
299 | : "no-" #varname__), \ | |
300 | dashes__, '\0', \ | |
ee1fe73e | 301 | default_value__ ? "false" : "true", \ |
086a1841 | 302 | no_helpstring__, NULL, false, this) \ |
ee1fe73e ILT |
303 | { } \ |
304 | \ | |
305 | void \ | |
306 | parse_to_value(const char*, const char*, \ | |
307 | Command_line*, General_options* options) \ | |
308 | { options->set_##varname__(false); } \ | |
309 | \ | |
310 | options::One_option option; \ | |
311 | }; \ | |
312 | Struct_no_##varname__ no_##varname__##_initializer_ | |
313 | ||
7c414435 DM |
314 | #define DEFINE_enable(varname__, dashes__, shortname__, default_value__, \ |
315 | helpstring__, no_helpstring__) \ | |
316 | DEFINE_var(enable_##varname__, dashes__, shortname__, default_value__, \ | |
317 | default_value__ ? "true" : "false", helpstring__, NULL, \ | |
318 | false, bool, bool, options::parse_bool) \ | |
319 | struct Struct_disable_##varname__ : public options::Struct_var \ | |
320 | { \ | |
321 | Struct_disable_##varname__() : option("disable-" #varname__, \ | |
322 | dashes__, '\0', \ | |
323 | default_value__ ? "false" : "true", \ | |
324 | no_helpstring__, NULL, false, this) \ | |
325 | { } \ | |
326 | \ | |
327 | void \ | |
328 | parse_to_value(const char*, const char*, \ | |
329 | Command_line*, General_options* options) \ | |
330 | { options->set_enable_##varname__(false); } \ | |
331 | \ | |
332 | options::One_option option; \ | |
333 | }; \ | |
334 | Struct_disable_##varname__ disable_##varname__##_initializer_ | |
335 | ||
ee1fe73e ILT |
336 | #define DEFINE_uint(varname__, dashes__, shortname__, default_value__, \ |
337 | helpstring__, helparg__) \ | |
338 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
086a1841 | 339 | #default_value__, helpstring__, helparg__, false, \ |
ee1fe73e ILT |
340 | int, int, options::parse_uint) |
341 | ||
342 | #define DEFINE_uint64(varname__, dashes__, shortname__, default_value__, \ | |
343 | helpstring__, helparg__) \ | |
344 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
086a1841 | 345 | #default_value__, helpstring__, helparg__, false, \ |
ee1fe73e ILT |
346 | uint64_t, uint64_t, options::parse_uint64) |
347 | ||
c18476e7 ILT |
348 | #define DEFINE_double(varname__, dashes__, shortname__, default_value__, \ |
349 | helpstring__, helparg__) \ | |
350 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
086a1841 | 351 | #default_value__, helpstring__, helparg__, false, \ |
c18476e7 ILT |
352 | double, double, options::parse_double) |
353 | ||
ee1fe73e ILT |
354 | #define DEFINE_string(varname__, dashes__, shortname__, default_value__, \ |
355 | helpstring__, helparg__) \ | |
356 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
086a1841 | 357 | default_value__, helpstring__, helparg__, false, \ |
ee1fe73e ILT |
358 | const char*, const char*, options::parse_string) |
359 | ||
360 | // This is like DEFINE_string, but we convert each occurrence to a | |
361 | // Search_directory and store it in a vector. Thus we also have the | |
362 | // add_to_VARNAME() method, to append to the vector. | |
363 | #define DEFINE_dirlist(varname__, dashes__, shortname__, \ | |
364 | helpstring__, helparg__) \ | |
365 | DEFINE_var(varname__, dashes__, shortname__, , \ | |
086a1841 | 366 | "", helpstring__, helparg__, false, options::Dir_list, \ |
ee1fe73e ILT |
367 | const options::Dir_list&, options::parse_dirlist) \ |
368 | void \ | |
369 | add_to_##varname__(const char* new_value) \ | |
370 | { options::parse_dirlist(NULL, new_value, &this->varname__##_.value); } \ | |
371 | void \ | |
372 | add_search_directory_to_##varname__(const Search_directory& dir) \ | |
373 | { this->varname__##_.value.push_back(dir); } | |
374 | ||
c5818ff1 CC |
375 | // This is like DEFINE_string, but we store a set of strings. |
376 | #define DEFINE_set(varname__, dashes__, shortname__, \ | |
377 | helpstring__, helparg__) \ | |
378 | DEFINE_var(varname__, dashes__, shortname__, , \ | |
379 | "", helpstring__, helparg__, false, options::String_set, \ | |
380 | const options::String_set&, options::parse_set) \ | |
381 | public: \ | |
382 | bool \ | |
383 | any_##varname__() const \ | |
384 | { return !this->varname__##_.value.empty(); } \ | |
f3e9c5c5 | 385 | \ |
c5818ff1 CC |
386 | bool \ |
387 | is_##varname__(const char* symbol) const \ | |
388 | { \ | |
389 | return (!this->varname__##_.value.empty() \ | |
390 | && (this->varname__##_.value.find(std::string(symbol)) \ | |
391 | != this->varname__##_.value.end())); \ | |
f3e9c5c5 ILT |
392 | } \ |
393 | \ | |
394 | options::String_set::const_iterator \ | |
395 | varname__##_begin() const \ | |
396 | { return this->varname__##_.value.begin(); } \ | |
397 | \ | |
398 | options::String_set::const_iterator \ | |
399 | varname__##_end() const \ | |
400 | { return this->varname__##_.value.end(); } | |
c5818ff1 | 401 | |
ee1fe73e ILT |
402 | // When you have a list of possible values (expressed as string) |
403 | // After helparg__ should come an initializer list, like | |
404 | // {"foo", "bar", "baz"} | |
405 | #define DEFINE_enum(varname__, dashes__, shortname__, default_value__, \ | |
406 | helpstring__, helparg__, ...) \ | |
407 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
086a1841 | 408 | default_value__, helpstring__, helparg__, false, \ |
ee1fe73e ILT |
409 | const char*, const char*, parse_choices_##varname__) \ |
410 | private: \ | |
411 | static void parse_choices_##varname__(const char* option_name, \ | |
412 | const char* arg, \ | |
413 | const char** retval) { \ | |
414 | const char* choices[] = __VA_ARGS__; \ | |
415 | options::parse_choices(option_name, arg, retval, \ | |
416 | choices, sizeof(choices) / sizeof(*choices)); \ | |
417 | } | |
418 | ||
2b706932 ILT |
419 | // This is like DEFINE_bool, but VARNAME is the name of a different |
420 | // option. This option becomes an alias for that one. INVERT is true | |
421 | // if this option is an inversion of the other one. | |
422 | #define DEFINE_bool_alias(option__, varname__, dashes__, shortname__, \ | |
423 | helpstring__, no_helpstring__, invert__) \ | |
424 | private: \ | |
425 | struct Struct_##option__ : public options::Struct_var \ | |
426 | { \ | |
427 | Struct_##option__() \ | |
428 | : option(#option__, dashes__, shortname__, "", helpstring__, \ | |
429 | NULL, false, this) \ | |
430 | { } \ | |
431 | \ | |
432 | void \ | |
433 | parse_to_value(const char*, const char*, \ | |
434 | Command_line*, General_options* options) \ | |
435 | { \ | |
436 | options->set_##varname__(!invert__); \ | |
437 | options->set_user_set_##varname__(); \ | |
438 | } \ | |
439 | \ | |
440 | options::One_option option; \ | |
441 | }; \ | |
442 | Struct_##option__ option__##_; \ | |
443 | \ | |
444 | struct Struct_no_##option__ : public options::Struct_var \ | |
445 | { \ | |
446 | Struct_no_##option__() \ | |
447 | : option((dashes__ == options::DASH_Z \ | |
448 | ? "no" #option__ \ | |
449 | : "no-" #option__), \ | |
450 | dashes__, '\0', "", no_helpstring__, \ | |
451 | NULL, false, this) \ | |
452 | { } \ | |
453 | \ | |
454 | void \ | |
455 | parse_to_value(const char*, const char*, \ | |
456 | Command_line*, General_options* options) \ | |
457 | { \ | |
458 | options->set_##varname__(invert__); \ | |
459 | options->set_user_set_##varname__(); \ | |
460 | } \ | |
461 | \ | |
462 | options::One_option option; \ | |
463 | }; \ | |
464 | Struct_no_##option__ no_##option__##_initializer_ | |
465 | ||
ee1fe73e ILT |
466 | // This is used for non-standard flags. It defines no functions; it |
467 | // just calls General_options::parse_VARNAME whenever the flag is | |
468 | // seen. We declare parse_VARNAME as a static member of | |
469 | // General_options; you are responsible for defining it there. | |
470 | // helparg__ should be NULL iff this special-option is a boolean. | |
471 | #define DEFINE_special(varname__, dashes__, shortname__, \ | |
472 | helpstring__, helparg__) \ | |
473 | private: \ | |
474 | void parse_##varname__(const char* option, const char* arg, \ | |
475 | Command_line* inputs); \ | |
476 | struct Struct_##varname__ : public options::Struct_special \ | |
477 | { \ | |
478 | Struct_##varname__() \ | |
479 | : options::Struct_special(#varname__, dashes__, shortname__, \ | |
480 | &General_options::parse_##varname__, \ | |
481 | helpstring__, helparg__) \ | |
482 | { } \ | |
483 | }; \ | |
484 | Struct_##varname__ varname__##_initializer_ | |
bae7f79e | 485 | |
086a1841 ILT |
486 | // An option that takes an optional string argument. If the option is |
487 | // used with no argument, the value will be the default, and | |
488 | // user_set_via_option will be true. | |
489 | #define DEFINE_optional_string(varname__, dashes__, shortname__, \ | |
490 | default_value__, \ | |
491 | helpstring__, helparg__) \ | |
492 | DEFINE_var(varname__, dashes__, shortname__, default_value__, \ | |
493 | default_value__, helpstring__, helparg__, true, \ | |
494 | const char*, const char*, options::parse_optional_string) | |
bae7f79e | 495 | |
ad2d6943 ILT |
496 | // A directory to search. For each directory we record whether it is |
497 | // in the sysroot. We need to know this so that, if a linker script | |
498 | // is found within the sysroot, we will apply the sysroot to any files | |
499 | // named by that script. | |
500 | ||
501 | class Search_directory | |
502 | { | |
503 | public: | |
504 | // We need a default constructor because we put this in a | |
505 | // std::vector. | |
506 | Search_directory() | |
507 | : name_(NULL), put_in_sysroot_(false), is_in_sysroot_(false) | |
508 | { } | |
509 | ||
510 | // This is the usual constructor. | |
511 | Search_directory(const char* name, bool put_in_sysroot) | |
512 | : name_(name), put_in_sysroot_(put_in_sysroot), is_in_sysroot_(false) | |
15893b88 ILT |
513 | { |
514 | if (this->name_.empty()) | |
515 | this->name_ = "."; | |
516 | } | |
ad2d6943 ILT |
517 | |
518 | // This is called if we have a sysroot. The sysroot is prefixed to | |
519 | // any entries for which put_in_sysroot_ is true. is_in_sysroot_ is | |
520 | // set to true for any enries which are in the sysroot (this will | |
521 | // naturally include any entries for which put_in_sysroot_ is true). | |
522 | // SYSROOT is the sysroot, CANONICAL_SYSROOT is the result of | |
523 | // passing SYSROOT to lrealpath. | |
524 | void | |
525 | add_sysroot(const char* sysroot, const char* canonical_sysroot); | |
526 | ||
527 | // Get the directory name. | |
528 | const std::string& | |
529 | name() const | |
530 | { return this->name_; } | |
531 | ||
532 | // Return whether this directory is in the sysroot. | |
533 | bool | |
534 | is_in_sysroot() const | |
535 | { return this->is_in_sysroot_; } | |
536 | ||
fd9d194f ILT |
537 | // Return whether this is considered a system directory. |
538 | bool | |
539 | is_system_directory() const | |
540 | { return this->put_in_sysroot_ || this->is_in_sysroot_; } | |
541 | ||
ad2d6943 | 542 | private: |
fd9d194f | 543 | // The directory name. |
ad2d6943 | 544 | std::string name_; |
fd9d194f ILT |
545 | // True if the sysroot should be added as a prefix for this |
546 | // directory (if there is a sysroot). This is true for system | |
547 | // directories that we search by default. | |
ad2d6943 | 548 | bool put_in_sysroot_; |
fd9d194f ILT |
549 | // True if this directory is in the sysroot (if there is a sysroot). |
550 | // This is true if there is a sysroot and either 1) put_in_sysroot_ | |
551 | // is true, or 2) the directory happens to be in the sysroot based | |
552 | // on a pathname comparison. | |
ad2d6943 ILT |
553 | bool is_in_sysroot_; |
554 | }; | |
555 | ||
bae7f79e ILT |
556 | class General_options |
557 | { | |
ee1fe73e ILT |
558 | private: |
559 | // NOTE: For every option that you add here, also consider if you | |
560 | // should add it to Position_dependent_options. | |
561 | DEFINE_special(help, options::TWO_DASHES, '\0', | |
a4d4b13f | 562 | N_("Report usage information"), NULL); |
ee1fe73e | 563 | DEFINE_special(version, options::TWO_DASHES, 'v', |
a4d4b13f | 564 | N_("Report version information"), NULL); |
b5be4a7c DM |
565 | DEFINE_special(V, options::EXACTLY_ONE_DASH, '\0', |
566 | N_("Report version and target information"), NULL); | |
ee1fe73e | 567 | |
fee2edb1 ILT |
568 | // These options are sorted approximately so that for each letter in |
569 | // the alphabet, we show the option whose shortname is that letter | |
570 | // (if any) and then every longname that starts with that letter (in | |
571 | // alphabetical order). For both, lowercase sorts before uppercase. | |
572 | // The -z options come last. | |
573 | ||
ee1fe73e | 574 | DEFINE_bool(allow_shlib_undefined, options::TWO_DASHES, '\0', false, |
a4d4b13f ILT |
575 | N_("Allow unresolved references in shared libraries"), |
576 | N_("Do not allow unresolved references in shared libraries")); | |
ee1fe73e ILT |
577 | |
578 | DEFINE_bool(as_needed, options::TWO_DASHES, '\0', false, | |
a4d4b13f ILT |
579 | N_("Only set DT_NEEDED for dynamic libs if used"), |
580 | N_("Always DT_NEEDED for dynamic libs")); | |
ee1fe73e | 581 | |
fee2edb1 ILT |
582 | // This should really be an "enum", but it's too easy for folks to |
583 | // forget to update the list as they add new targets. So we just | |
584 | // accept any string. We'll fail later (when the string is parsed), | |
585 | // if the target isn't actually supported. | |
586 | DEFINE_string(format, options::TWO_DASHES, 'b', "elf", | |
587 | N_("Set input format"), ("[elf,binary]")); | |
588 | ||
ee1fe73e | 589 | DEFINE_bool(Bdynamic, options::ONE_DASH, '\0', true, |
a4d4b13f | 590 | N_("-l searches for shared libraries"), NULL); |
2b706932 ILT |
591 | DEFINE_bool_alias(Bstatic, Bdynamic, options::ONE_DASH, '\0', |
592 | N_("-l does not search for shared libraries"), NULL, | |
593 | true); | |
ee1fe73e ILT |
594 | |
595 | DEFINE_bool(Bsymbolic, options::ONE_DASH, '\0', false, | |
a4d4b13f | 596 | N_("Bind defined symbols locally"), NULL); |
ee1fe73e | 597 | |
f1f70eae ILT |
598 | DEFINE_bool(Bsymbolic_functions, options::ONE_DASH, '\0', false, |
599 | N_("Bind defined function symbols locally"), NULL); | |
600 | ||
8ed814a9 ILT |
601 | DEFINE_optional_string(build_id, options::TWO_DASHES, '\0', "sha1", |
602 | N_("Generate build ID note"), | |
603 | N_("[=STYLE]")); | |
604 | ||
34810851 ILT |
605 | DEFINE_bool(check_sections, options::TWO_DASHES, '\0', true, |
606 | N_("Check segment addresses for overlaps (default)"), | |
607 | N_("Do not check segment addresses for overlaps")); | |
608 | ||
ee1fe73e ILT |
609 | #ifdef HAVE_ZLIB_H |
610 | DEFINE_enum(compress_debug_sections, options::TWO_DASHES, '\0', "none", | |
a4d4b13f ILT |
611 | N_("Compress .debug_* sections in the output file"), |
612 | ("[none,zlib]"), | |
ee1fe73e ILT |
613 | {"none", "zlib"}); |
614 | #else | |
615 | DEFINE_enum(compress_debug_sections, options::TWO_DASHES, '\0', "none", | |
a4d4b13f ILT |
616 | N_("Compress .debug_* sections in the output file"), |
617 | N_("[none]"), | |
ee1fe73e ILT |
618 | {"none"}); |
619 | #endif | |
0dfbdef4 | 620 | |
ee1fe73e | 621 | DEFINE_bool(define_common, options::TWO_DASHES, 'd', false, |
a4d4b13f ILT |
622 | N_("Define common symbols"), |
623 | N_("Do not define common symbols")); | |
ee1fe73e | 624 | DEFINE_bool(dc, options::ONE_DASH, '\0', false, |
a4d4b13f | 625 | N_("Alias for -d"), NULL); |
ee1fe73e | 626 | DEFINE_bool(dp, options::ONE_DASH, '\0', false, |
a4d4b13f | 627 | N_("Alias for -d"), NULL); |
d391083d | 628 | |
fee2edb1 | 629 | DEFINE_string(debug, options::TWO_DASHES, '\0', "", |
2285a610 ILT |
630 | N_("Turn on debugging"), |
631 | N_("[all,files,script,task][,...]")); | |
fee2edb1 | 632 | |
ee1fe73e | 633 | DEFINE_special(defsym, options::TWO_DASHES, '\0', |
a4d4b13f | 634 | N_("Define a symbol"), N_("SYMBOL=EXPRESSION")); |
a6badf5a | 635 | |
086a1841 ILT |
636 | DEFINE_optional_string(demangle, options::TWO_DASHES, '\0', NULL, |
637 | N_("Demangle C++ symbols in log messages"), | |
638 | N_("[=STYLE]")); | |
639 | ||
640 | DEFINE_bool(no_demangle, options::TWO_DASHES, '\0', false, | |
641 | N_("Do not demangle C++ symbols in log messages"), | |
642 | NULL); | |
fced7afd | 643 | |
ee1fe73e | 644 | DEFINE_bool(detect_odr_violations, options::TWO_DASHES, '\0', false, |
a4d4b13f | 645 | N_("Try to detect violations of the One Definition Rule"), |
ee1fe73e ILT |
646 | NULL); |
647 | ||
bb04269c DK |
648 | DEFINE_bool(discard_locals, options::TWO_DASHES, 'X', false, |
649 | N_("Delete all temporary local symbols"), NULL); | |
650 | ||
c82fbeee CS |
651 | DEFINE_bool(dynamic_list_data, options::TWO_DASHES, '\0', false, |
652 | N_("Add data symbols to dynamic symbols"), NULL); | |
653 | ||
654 | DEFINE_bool(dynamic_list_cpp_new, options::TWO_DASHES, '\0', false, | |
655 | N_("Add C++ operator new/delete to dynamic symbols"), NULL); | |
656 | ||
657 | DEFINE_bool(dynamic_list_cpp_typeinfo, options::TWO_DASHES, '\0', false, | |
658 | N_("Add C++ typeinfo to dynamic symbols"), NULL); | |
659 | ||
660 | DEFINE_special(dynamic_list, options::TWO_DASHES, '\0', | |
661 | N_("Read a list of dynamic symbols"), N_("FILE")); | |
662 | ||
ee1fe73e | 663 | DEFINE_string(entry, options::TWO_DASHES, 'e', NULL, |
a4d4b13f | 664 | N_("Set program start address"), N_("ADDRESS")); |
ee1fe73e | 665 | |
65514900 CC |
666 | DEFINE_special(exclude_libs, options::TWO_DASHES, '\0', |
667 | N_("Exclude libraries from automatic export"), | |
668 | N_(("lib,lib ..."))); | |
669 | ||
ee1fe73e | 670 | DEFINE_bool(export_dynamic, options::TWO_DASHES, 'E', false, |
ee769c88 ILT |
671 | N_("Export all dynamic symbols"), |
672 | N_("Do not export all dynamic symbols (default)")); | |
dbe717ef | 673 | |
ee1fe73e | 674 | DEFINE_bool(eh_frame_hdr, options::TWO_DASHES, '\0', false, |
a4d4b13f | 675 | N_("Create exception frame header"), NULL); |
ee1fe73e | 676 | |
d82a5bcc ILT |
677 | DEFINE_bool(fatal_warnings, options::TWO_DASHES, '\0', false, |
678 | N_("Treat warnings as errors"), | |
679 | N_("Do not treat warnings as errors")); | |
680 | ||
ee1fe73e | 681 | DEFINE_string(soname, options::ONE_DASH, 'h', NULL, |
a4d4b13f | 682 | N_("Set shared library name"), N_("FILENAME")); |
ee1fe73e | 683 | |
c18476e7 ILT |
684 | DEFINE_double(hash_bucket_empty_fraction, options::TWO_DASHES, '\0', 0.0, |
685 | N_("Min fraction of empty buckets in dynamic hash"), | |
686 | N_("FRACTION")); | |
687 | ||
13670ee6 | 688 | DEFINE_enum(hash_style, options::TWO_DASHES, '\0', "sysv", |
a4d4b13f | 689 | N_("Dynamic hash style"), N_("[sysv,gnu,both]"), |
13670ee6 ILT |
690 | {"sysv", "gnu", "both"}); |
691 | ||
ee1fe73e | 692 | DEFINE_string(dynamic_linker, options::TWO_DASHES, 'I', NULL, |
a4d4b13f | 693 | N_("Set dynamic linker path"), N_("PROGRAM")); |
ee1fe73e | 694 | |
266d0a74 ILT |
695 | DEFINE_bool(incremental, options::TWO_DASHES, '\0', false, |
696 | N_("Work in progress; do not use"), | |
697 | N_("Do a full build")); | |
698 | ||
699 | DEFINE_special(incremental_changed, options::TWO_DASHES, '\0', | |
700 | N_("Assume files changed"), NULL); | |
701 | ||
702 | DEFINE_special(incremental_unchanged, options::TWO_DASHES, '\0', | |
703 | N_("Assume files didn't change"), NULL); | |
704 | ||
705 | DEFINE_special(incremental_unknown, options::TWO_DASHES, '\0', | |
706 | N_("Use timestamps to check files (default)"), NULL); | |
707 | ||
fee2edb1 ILT |
708 | DEFINE_special(just_symbols, options::TWO_DASHES, '\0', |
709 | N_("Read only symbol values from FILE"), N_("FILE")); | |
710 | ||
ee1fe73e | 711 | DEFINE_special(library, options::TWO_DASHES, 'l', |
a4d4b13f | 712 | N_("Search for library LIBNAME"), N_("LIBNAME")); |
bae7f79e | 713 | |
ee1fe73e | 714 | DEFINE_dirlist(library_path, options::TWO_DASHES, 'L', |
a4d4b13f | 715 | N_("Add directory to search path"), N_("DIR")); |
ee1fe73e ILT |
716 | |
717 | DEFINE_string(m, options::EXACTLY_ONE_DASH, 'm', "", | |
a4d4b13f | 718 | N_("Ignored for compatibility"), N_("EMULATION")); |
ee1fe73e | 719 | |
7d9e3d98 ILT |
720 | DEFINE_bool(print_map, options::TWO_DASHES, 'M', false, |
721 | N_("Write map file on standard output"), NULL); | |
722 | DEFINE_string(Map, options::ONE_DASH, '\0', NULL, N_("Write map file"), | |
723 | N_("MAPFILENAME")); | |
724 | ||
af6156ef ILT |
725 | DEFINE_bool(nmagic, options::TWO_DASHES, 'n', false, |
726 | N_("Do not page align data"), NULL); | |
727 | DEFINE_bool(omagic, options::EXACTLY_TWO_DASHES, 'N', false, | |
728 | N_("Do not page align data, do not make text readonly"), | |
729 | N_("Page align data, make text readonly")); | |
730 | ||
7c414435 DM |
731 | DEFINE_enable(new_dtags, options::EXACTLY_TWO_DASHES, '\0', false, |
732 | N_("Enable use of DT_RUNPATH and DT_FLAGS"), | |
733 | N_("Disable use of DT_RUNPATH and DT_FLAGS")); | |
734 | ||
cdb0b8f5 ILT |
735 | DEFINE_bool(noinhibit_exec, options::TWO_DASHES, '\0', false, |
736 | N_("Create an output file even if errors occur"), NULL); | |
737 | ||
f3e9c5c5 ILT |
738 | DEFINE_bool_alias(no_undefined, defs, options::TWO_DASHES, '\0', |
739 | N_("Report undefined symbols (even with --shared)"), | |
740 | NULL, false); | |
741 | ||
ee1fe73e | 742 | DEFINE_string(output, options::TWO_DASHES, 'o', "a.out", |
a4d4b13f | 743 | N_("Set output file name"), N_("FILE")); |
ee1fe73e ILT |
744 | |
745 | DEFINE_uint(optimize, options::EXACTLY_ONE_DASH, 'O', 0, | |
a4d4b13f | 746 | N_("Optimize output file size"), N_("LEVEL")); |
ee1fe73e | 747 | |
a4d4b13f ILT |
748 | DEFINE_string(oformat, options::EXACTLY_TWO_DASHES, '\0', "elf", |
749 | N_("Set output format"), N_("[binary]")); | |
ee1fe73e | 750 | |
89fc3421 CC |
751 | #ifdef ENABLE_PLUGINS |
752 | DEFINE_special(plugin, options::TWO_DASHES, '\0', | |
4674ecfc CC |
753 | N_("Load a plugin library"), N_("PLUGIN")); |
754 | DEFINE_special(plugin_opt, options::TWO_DASHES, '\0', | |
755 | N_("Pass an option to the plugin"), N_("OPTION")); | |
89fc3421 CC |
756 | #endif |
757 | ||
ac45a351 CC |
758 | DEFINE_bool(preread_archive_symbols, options::TWO_DASHES, '\0', false, |
759 | N_("Preread archive symbols when multi-threaded"), NULL); | |
89fc3421 | 760 | |
92de84a6 ILT |
761 | DEFINE_string(print_symbol_counts, options::TWO_DASHES, '\0', NULL, |
762 | N_("Print symbols defined and used for each input"), | |
763 | N_("FILENAME")); | |
764 | ||
b5be4a7c DM |
765 | DEFINE_bool(Qy, options::EXACTLY_ONE_DASH, '\0', false, |
766 | N_("Ignored for SVR4 compatibility"), NULL); | |
767 | ||
ee1fe73e | 768 | DEFINE_bool(emit_relocs, options::TWO_DASHES, 'q', false, |
a4d4b13f | 769 | N_("Generate relocations in output"), NULL); |
ee1fe73e ILT |
770 | |
771 | DEFINE_bool(relocatable, options::EXACTLY_ONE_DASH, 'r', false, | |
a4d4b13f | 772 | N_("Generate relocatable output"), NULL); |
ee1fe73e | 773 | |
706e1f5e ILT |
774 | DEFINE_bool(relax, options::TWO_DASHES, '\0', false, |
775 | N_("Relax branches on certain targets"), NULL); | |
776 | ||
ee1fe73e ILT |
777 | // -R really means -rpath, but can mean --just-symbols for |
778 | // compatibility with GNU ld. -rpath is always -rpath, so we list | |
779 | // it separately. | |
780 | DEFINE_special(R, options::EXACTLY_ONE_DASH, 'R', | |
a4d4b13f | 781 | N_("Add DIR to runtime search path"), N_("DIR")); |
ee1fe73e ILT |
782 | |
783 | DEFINE_dirlist(rpath, options::ONE_DASH, '\0', | |
a4d4b13f | 784 | N_("Add DIR to runtime search path"), N_("DIR")); |
ee1fe73e | 785 | |
ee1fe73e | 786 | DEFINE_dirlist(rpath_link, options::TWO_DASHES, '\0', |
a4d4b13f ILT |
787 | N_("Add DIR to link time shared library search path"), |
788 | N_("DIR")); | |
ee1fe73e ILT |
789 | |
790 | DEFINE_bool(strip_all, options::TWO_DASHES, 's', false, | |
a4d4b13f | 791 | N_("Strip all symbols"), NULL); |
fee2edb1 ILT |
792 | DEFINE_bool(strip_debug, options::TWO_DASHES, 'S', false, |
793 | N_("Strip debugging information"), NULL); | |
62b01cb5 ILT |
794 | DEFINE_bool(strip_debug_non_line, options::TWO_DASHES, '\0', false, |
795 | N_("Emit only debug line number information"), NULL); | |
ee1fe73e | 796 | DEFINE_bool(strip_debug_gdb, options::TWO_DASHES, '\0', false, |
a4d4b13f | 797 | N_("Strip debug symbols that are unused by gdb " |
ee1fe73e | 798 | "(at least versions <= 6.7)"), NULL); |
fd06b4aa CC |
799 | DEFINE_bool(strip_lto_sections, options::TWO_DASHES, '\0', true, |
800 | N_("Strip LTO intermediate code sections"), NULL); | |
ee1fe73e | 801 | |
3b293544 CF |
802 | DEFINE_bool(no_keep_memory, options::TWO_DASHES, 's', false, |
803 | N_("Use less memory and more disk I/O (included only for compatibility with GNU ld)"), NULL); | |
804 | ||
ee1fe73e | 805 | DEFINE_bool(shared, options::ONE_DASH, '\0', false, |
a4d4b13f | 806 | N_("Generate shared library"), NULL); |
ee1fe73e | 807 | |
3b293544 CF |
808 | DEFINE_bool(Bshareable, options::ONE_DASH, '\0', false, |
809 | N_("Generate shared library"), NULL); | |
810 | ||
ee1fe73e ILT |
811 | // This is not actually special in any way, but I need to give it |
812 | // a non-standard accessor-function name because 'static' is a keyword. | |
813 | DEFINE_special(static, options::ONE_DASH, '\0', | |
a4d4b13f | 814 | N_("Do not link against shared libraries"), NULL); |
ee1fe73e | 815 | |
ef15dade | 816 | DEFINE_bool(icf, options::TWO_DASHES, '\0', false, |
48c187ce | 817 | N_("Identical Code Folding (Fold identical functions)"), |
ef15dade ST |
818 | N_("Don't fold identical functions (default)")); |
819 | ||
820 | DEFINE_uint(icf_iterations, options::TWO_DASHES , '\0', 0, | |
821 | N_("Number of iterations of ICF (default 2)"), N_("COUNT")); | |
822 | ||
823 | DEFINE_bool(print_icf_sections, options::TWO_DASHES, '\0', false, | |
824 | N_("List folded identical sections on stderr"), | |
825 | N_("Do not list folded identical sections")); | |
826 | ||
48c187ce ST |
827 | DEFINE_set(keep_unique, options::TWO_DASHES, '\0', |
828 | N_("Do not fold this symbol during ICF"), N_("SYMBOL")); | |
829 | ||
6d03d481 | 830 | DEFINE_bool(gc_sections, options::TWO_DASHES, '\0', false, |
266d0a74 | 831 | N_("Remove unused sections"), |
6d03d481 | 832 | N_("Don't remove unused sections (default)")); |
266d0a74 | 833 | |
6d03d481 | 834 | DEFINE_bool(print_gc_sections, options::TWO_DASHES, '\0', false, |
266d0a74 | 835 | N_("List removed unused sections on stderr"), |
6d03d481 ST |
836 | N_("Do not list removed unused sections")); |
837 | ||
ee1fe73e | 838 | DEFINE_bool(stats, options::TWO_DASHES, '\0', false, |
a4d4b13f | 839 | N_("Print resource usage statistics"), NULL); |
ee1fe73e ILT |
840 | |
841 | DEFINE_string(sysroot, options::TWO_DASHES, '\0', "", | |
a4d4b13f | 842 | N_("Set target system root directory"), N_("DIR")); |
ee1fe73e | 843 | |
c5818ff1 CC |
844 | DEFINE_bool(trace, options::TWO_DASHES, 't', false, |
845 | N_("Print the name of each input file"), NULL); | |
846 | ||
ee1fe73e | 847 | DEFINE_special(script, options::TWO_DASHES, 'T', |
a4d4b13f | 848 | N_("Read linker script"), N_("FILE")); |
ee1fe73e ILT |
849 | |
850 | DEFINE_bool(threads, options::TWO_DASHES, '\0', false, | |
a4d4b13f ILT |
851 | N_("Run the linker multi-threaded"), |
852 | N_("Do not run the linker multi-threaded")); | |
ee1fe73e | 853 | DEFINE_uint(thread_count, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 854 | N_("Number of threads to use"), N_("COUNT")); |
ee1fe73e | 855 | DEFINE_uint(thread_count_initial, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 856 | N_("Number of threads to use in initial pass"), N_("COUNT")); |
ee1fe73e | 857 | DEFINE_uint(thread_count_middle, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 858 | N_("Number of threads to use in middle pass"), N_("COUNT")); |
ee1fe73e | 859 | DEFINE_uint(thread_count_final, options::TWO_DASHES, '\0', 0, |
a4d4b13f | 860 | N_("Number of threads to use in final pass"), N_("COUNT")); |
ee1fe73e | 861 | |
fee2edb1 ILT |
862 | DEFINE_uint64(Tbss, options::ONE_DASH, '\0', -1U, |
863 | N_("Set the address of the bss segment"), N_("ADDRESS")); | |
864 | DEFINE_uint64(Tdata, options::ONE_DASH, '\0', -1U, | |
865 | N_("Set the address of the data segment"), N_("ADDRESS")); | |
866 | DEFINE_uint64(Ttext, options::ONE_DASH, '\0', -1U, | |
867 | N_("Set the address of the text segment"), N_("ADDRESS")); | |
868 | ||
f3e9c5c5 ILT |
869 | DEFINE_set(undefined, options::TWO_DASHES, 'u', |
870 | N_("Create undefined reference to SYMBOL"), N_("SYMBOL")); | |
2b706932 | 871 | |
2285a610 ILT |
872 | DEFINE_bool(verbose, options::TWO_DASHES, '\0', false, |
873 | N_("Synonym for --debug=files"), NULL); | |
874 | ||
fee2edb1 ILT |
875 | DEFINE_special(version_script, options::TWO_DASHES, '\0', |
876 | N_("Read version script"), N_("FILE")); | |
877 | ||
15f8229b ILT |
878 | DEFINE_bool(warn_search_mismatch, options::TWO_DASHES, '\0', true, |
879 | N_("Warn when skipping an incompatible library"), | |
880 | N_("Don't warn when skipping an incompatible library")); | |
881 | ||
ee1fe73e | 882 | DEFINE_bool(whole_archive, options::TWO_DASHES, '\0', false, |
a4d4b13f ILT |
883 | N_("Include all archive contents"), |
884 | N_("Include only needed archive contents")); | |
ee1fe73e | 885 | |
c5818ff1 CC |
886 | DEFINE_set(wrap, options::TWO_DASHES, '\0', |
887 | N_("Use wrapper functions for SYMBOL"), N_("SYMBOL")); | |
888 | ||
889 | DEFINE_set(trace_symbol, options::TWO_DASHES, 'y', | |
890 | N_("Trace references to symbol"), N_("SYMBOL")); | |
0864d551 | 891 | |
706e1f5e ILT |
892 | DEFINE_string(Y, options::EXACTLY_ONE_DASH, 'Y', "", |
893 | N_("Default search path for Solaris compatibility"), | |
894 | N_("PATH")); | |
895 | ||
ee1fe73e | 896 | DEFINE_special(start_group, options::TWO_DASHES, '(', |
a4d4b13f | 897 | N_("Start a library search group"), NULL); |
ee1fe73e | 898 | DEFINE_special(end_group, options::TWO_DASHES, ')', |
a4d4b13f | 899 | N_("End a library search group"), NULL); |
ee1fe73e | 900 | |
fee2edb1 | 901 | // The -z options. |
ee1fe73e | 902 | |
d98bc257 ILT |
903 | DEFINE_bool(combreloc, options::DASH_Z, '\0', true, |
904 | N_("Sort dynamic relocs"), | |
905 | N_("Do not sort dynamic relocs")); | |
fee2edb1 ILT |
906 | DEFINE_uint64(common_page_size, options::DASH_Z, '\0', 0, |
907 | N_("Set common page size to SIZE"), N_("SIZE")); | |
eb42429a ILT |
908 | DEFINE_bool(defs, options::DASH_Z, '\0', false, |
909 | N_("Report undefined symbols (even with --shared)"), | |
910 | NULL); | |
ee1fe73e | 911 | DEFINE_bool(execstack, options::DASH_Z, '\0', false, |
a4d4b13f | 912 | N_("Mark output as requiring executable stack"), NULL); |
7c414435 DM |
913 | DEFINE_bool(initfirst, options::DASH_Z, '\0', false, |
914 | N_("Mark DSO to be initialized first at runtime"), | |
915 | NULL); | |
916 | DEFINE_bool(interpose, options::DASH_Z, '\0', false, | |
917 | N_("Mark object to interpose all DSOs but executable"), | |
918 | NULL); | |
e1c74d60 ILT |
919 | DEFINE_bool(lazy, options::DASH_Z, '\0', false, |
920 | N_("Mark object for lazy runtime binding (default)"), | |
921 | NULL); | |
7c414435 DM |
922 | DEFINE_bool(loadfltr, options::DASH_Z, '\0', false, |
923 | N_("Mark object requiring immediate process"), | |
924 | NULL); | |
e1c74d60 ILT |
925 | DEFINE_uint64(max_page_size, options::DASH_Z, '\0', 0, |
926 | N_("Set maximum page size to SIZE"), N_("SIZE")); | |
7c414435 DM |
927 | DEFINE_bool(nodefaultlib, options::DASH_Z, '\0', false, |
928 | N_("Mark object not to use default search paths"), | |
929 | NULL); | |
930 | DEFINE_bool(nodelete, options::DASH_Z, '\0', false, | |
931 | N_("Mark DSO non-deletable at runtime"), | |
932 | NULL); | |
933 | DEFINE_bool(nodlopen, options::DASH_Z, '\0', false, | |
934 | N_("Mark DSO not available to dlopen"), | |
935 | NULL); | |
936 | DEFINE_bool(nodump, options::DASH_Z, '\0', false, | |
937 | N_("Mark DSO not available to dldump"), | |
938 | NULL); | |
e1c74d60 ILT |
939 | DEFINE_bool(noexecstack, options::DASH_Z, '\0', false, |
940 | N_("Mark output as not requiring executable stack"), NULL); | |
941 | DEFINE_bool(now, options::DASH_Z, '\0', false, | |
942 | N_("Mark object for immediate function binding"), | |
943 | NULL); | |
7be8330a CD |
944 | DEFINE_bool(origin, options::DASH_Z, '\0', false, |
945 | N_("Mark DSO to indicate that needs immediate $ORIGIN " | |
946 | "processing at runtime"), NULL); | |
e1c74d60 ILT |
947 | DEFINE_bool(relro, options::DASH_Z, '\0', false, |
948 | N_("Where possible mark variables read-only after relocation"), | |
949 | N_("Don't mark variables read-only after relocation")); | |
bae7f79e | 950 | |
ee1fe73e ILT |
951 | public: |
952 | typedef options::Dir_list Dir_list; | |
ca3a67a5 | 953 | |
ee1fe73e | 954 | General_options(); |
61ba1cf9 | 955 | |
ee1fe73e ILT |
956 | // Does post-processing on flags, making sure they all have |
957 | // non-conflicting values. Also converts some flags from their | |
958 | // "standard" types (string, etc), to another type (enum, DirList), | |
959 | // which can be accessed via a separate method. Dies if it notices | |
960 | // any problems. | |
961 | void finalize(); | |
516cb3d0 | 962 | |
459c9f1c ILT |
963 | // True if we printed the version information. |
964 | bool | |
965 | printed_version() const | |
966 | { return this->printed_version_; } | |
967 | ||
ee1fe73e ILT |
968 | // The macro defines output() (based on --output), but that's a |
969 | // generic name. Provide this alternative name, which is clearer. | |
8851ecca | 970 | const char* |
ee1fe73e ILT |
971 | output_file_name() const |
972 | { return this->output(); } | |
92e059d8 | 973 | |
8851ecca ILT |
974 | // This is not defined via a flag, but combines flags to say whether |
975 | // the output is position-independent or not. | |
976 | bool | |
977 | output_is_position_independent() const | |
978 | { return this->shared(); } | |
979 | ||
183fd0e3 AO |
980 | // Return true if the output is something that can be exec()ed, such |
981 | // as a static executable, or a position-dependent or | |
982 | // position-independent executable, but not a dynamic library or an | |
983 | // object file. | |
984 | bool | |
985 | output_is_executable() const | |
986 | { return !this->shared() || this->output_is_pie(); } | |
987 | ||
988 | // Return true if the output is a position-independent executable. | |
989 | // This is currently not supported. | |
990 | bool | |
991 | output_is_pie() const | |
992 | { return false; } | |
993 | ||
ee1fe73e ILT |
994 | // This would normally be static(), and defined automatically, but |
995 | // since static is a keyword, we need to come up with our own name. | |
bae7f79e ILT |
996 | bool |
997 | is_static() const | |
ee1fe73e | 998 | { return static_; } |
756ac4a8 | 999 | |
ee1fe73e ILT |
1000 | // In addition to getting the input and output formats as a string |
1001 | // (via format() and oformat()), we also give access as an enum. | |
1002 | enum Object_format | |
1003 | { | |
1004 | // Ordinary ELF. | |
1005 | OBJECT_FORMAT_ELF, | |
1006 | // Straight binary format. | |
1007 | OBJECT_FORMAT_BINARY | |
1008 | }; | |
fe9a4c12 | 1009 | |
e6a307ba ILT |
1010 | // Convert a string to an Object_format. Gives an error if the |
1011 | // string is not recognized. | |
1012 | static Object_format | |
1013 | string_to_object_format(const char* arg); | |
1014 | ||
ee1fe73e ILT |
1015 | // Note: these functions are not very fast. |
1016 | Object_format format_enum() const; | |
1017 | Object_format oformat_enum() const; | |
fe9a4c12 | 1018 | |
fd9d194f ILT |
1019 | // Return whether FILENAME is in a system directory. |
1020 | bool | |
1021 | is_in_system_directory(const std::string& name) const; | |
1022 | ||
ee1fe73e ILT |
1023 | // These are the best way to get access to the execstack state, |
1024 | // not execstack() and noexecstack() which are hard to use properly. | |
35cdfc9a ILT |
1025 | bool |
1026 | is_execstack_set() const | |
ee1fe73e | 1027 | { return this->execstack_status_ != EXECSTACK_FROM_INPUT; } |
35cdfc9a ILT |
1028 | |
1029 | bool | |
1030 | is_stack_executable() const | |
ee1fe73e | 1031 | { return this->execstack_status_ == EXECSTACK_YES; } |
c7912668 | 1032 | |
086a1841 ILT |
1033 | // The --demangle option takes an optional string, and there is also |
1034 | // a --no-demangle option. This is the best way to decide whether | |
1035 | // to demangle or not. | |
1036 | bool | |
1037 | do_demangle() const | |
1038 | { return this->do_demangle_; } | |
1039 | ||
89fc3421 CC |
1040 | // Returns TRUE if any plugin libraries have been loaded. |
1041 | bool | |
1042 | has_plugins() const | |
1043 | { return this->plugins_ != NULL; } | |
1044 | ||
1045 | // Return a pointer to the plugin manager. | |
1046 | Plugin_manager* | |
1047 | plugins() const | |
1048 | { return this->plugins_; } | |
1049 | ||
c82fbeee CS |
1050 | // True iff SYMBOL was found in the file specified by dynamic-list. |
1051 | bool | |
1052 | in_dynamic_list(const char* symbol) const | |
1053 | { return this->dynamic_list_.version_script_info()->symbol_is_local(symbol); } | |
1054 | ||
266d0a74 ILT |
1055 | // The disposition given by the --incremental-changed, |
1056 | // --incremental-unchanged or --incremental-unknown option. The | |
1057 | // value may change as we proceed parsing the command line flags. | |
1058 | Incremental_disposition | |
1059 | incremental_disposition() const | |
1060 | { return this->incremental_disposition_; } | |
1061 | ||
65514900 CC |
1062 | // Return true if S is the name of a library excluded from automatic |
1063 | // symbol export. | |
1064 | bool | |
1065 | check_excluded_libs (const std::string &s) const; | |
1066 | ||
bae7f79e | 1067 | private: |
dbe717ef ILT |
1068 | // Don't copy this structure. |
1069 | General_options(const General_options&); | |
1070 | General_options& operator=(const General_options&); | |
1071 | ||
35cdfc9a ILT |
1072 | // Whether to mark the stack as executable. |
1073 | enum Execstack | |
1074 | { | |
1075 | // Not set on command line. | |
1076 | EXECSTACK_FROM_INPUT, | |
ee1fe73e | 1077 | // Mark the stack as executable (-z execstack). |
35cdfc9a | 1078 | EXECSTACK_YES, |
ee1fe73e | 1079 | // Mark the stack as not executable (-z noexecstack). |
35cdfc9a ILT |
1080 | EXECSTACK_NO |
1081 | }; | |
1082 | ||
92e059d8 | 1083 | void |
ee1fe73e | 1084 | set_execstack_status(Execstack value) |
086a1841 ILT |
1085 | { this->execstack_status_ = value; } |
1086 | ||
1087 | void | |
1088 | set_do_demangle(bool value) | |
1089 | { this->do_demangle_ = value; } | |
92e059d8 | 1090 | |
bae7f79e | 1091 | void |
45aa233b | 1092 | set_static(bool value) |
ee1fe73e | 1093 | { static_ = value; } |
652ec9bd | 1094 | |
ee1fe73e | 1095 | // These are called by finalize() to set up the search-path correctly. |
35cdfc9a | 1096 | void |
ee1fe73e ILT |
1097 | add_to_library_path_with_sysroot(const char* arg) |
1098 | { this->add_search_directory_to_library_path(Search_directory(arg, true)); } | |
c7912668 | 1099 | |
ad2d6943 ILT |
1100 | // Apply any sysroot to the directory lists. |
1101 | void | |
1102 | add_sysroot(); | |
086a1841 | 1103 | |
89fc3421 CC |
1104 | // Add a plugin and its arguments to the list of plugins. |
1105 | void | |
4674ecfc CC |
1106 | add_plugin(const char *filename); |
1107 | ||
1108 | // Add a plugin option. | |
1109 | void | |
1110 | add_plugin_option(const char* opt); | |
89fc3421 | 1111 | |
459c9f1c ILT |
1112 | // Whether we printed version information. |
1113 | bool printed_version_; | |
086a1841 ILT |
1114 | // Whether to mark the stack as executable. |
1115 | Execstack execstack_status_; | |
1116 | // Whether to do a static link. | |
1117 | bool static_; | |
1118 | // Whether to do demangling. | |
1119 | bool do_demangle_; | |
89fc3421 CC |
1120 | // List of plugin libraries. |
1121 | Plugin_manager* plugins_; | |
c82fbeee CS |
1122 | // The parsed output of --dynamic-list files. For convenience in |
1123 | // script.cc, we store this as a Script_options object, even though | |
1124 | // we only use a single Version_tree from it. | |
1125 | Script_options dynamic_list_; | |
266d0a74 ILT |
1126 | // The disposition given by the --incremental-changed, |
1127 | // --incremental-unchanged or --incremental-unknown option. The | |
1128 | // value may change as we proceed parsing the command line flags. | |
1129 | Incremental_disposition incremental_disposition_; | |
459c9f1c | 1130 | // Whether we have seen one of the options that require incremental |
266d0a74 ILT |
1131 | // build (--incremental-changed, --incremental-unchanged or |
1132 | // --incremental-unknown) | |
1133 | bool implicit_incremental_; | |
65514900 CC |
1134 | // Libraries excluded from automatic export via --exclude-libs |
1135 | Unordered_set<std::string> excluded_libs_; | |
bae7f79e ILT |
1136 | }; |
1137 | ||
ee1fe73e ILT |
1138 | // The position-dependent options. We use this to store the state of |
1139 | // the commandline at a particular point in parsing for later | |
1140 | // reference. For instance, if we see "ld --whole-archive foo.a | |
1141 | // --no-whole-archive," we want to store the whole-archive option with | |
1142 | // foo.a, so when the time comes to parse foo.a we know we should do | |
1143 | // it in whole-archive mode. We could store all of General_options, | |
1144 | // but that's big, so we just pick the subset of flags that actually | |
1145 | // change in a position-dependent way. | |
1146 | ||
1147 | #define DEFINE_posdep(varname__, type__) \ | |
1148 | public: \ | |
1149 | type__ \ | |
1150 | varname__() const \ | |
1151 | { return this->varname__##_; } \ | |
1152 | \ | |
1153 | void \ | |
1154 | set_##varname__(type__ value) \ | |
1155 | { this->varname__##_ = value; } \ | |
1156 | private: \ | |
1157 | type__ varname__##_ | |
bae7f79e ILT |
1158 | |
1159 | class Position_dependent_options | |
1160 | { | |
1161 | public: | |
ee1fe73e ILT |
1162 | Position_dependent_options(const General_options& options |
1163 | = Position_dependent_options::default_options_) | |
1164 | { copy_from_options(options); } | |
bae7f79e | 1165 | |
ee1fe73e ILT |
1166 | void copy_from_options(const General_options& options) |
1167 | { | |
1168 | this->set_as_needed(options.as_needed()); | |
1169 | this->set_Bdynamic(options.Bdynamic()); | |
1170 | this->set_format_enum(options.format_enum()); | |
1171 | this->set_whole_archive(options.whole_archive()); | |
266d0a74 | 1172 | this->set_incremental_disposition(options.incremental_disposition()); |
ee1fe73e | 1173 | } |
bc644c6c | 1174 | |
ee1fe73e ILT |
1175 | DEFINE_posdep(as_needed, bool); |
1176 | DEFINE_posdep(Bdynamic, bool); | |
1177 | DEFINE_posdep(format_enum, General_options::Object_format); | |
1178 | DEFINE_posdep(whole_archive, bool); | |
266d0a74 | 1179 | DEFINE_posdep(incremental_disposition, Incremental_disposition); |
7cc619c3 | 1180 | |
dbe717ef | 1181 | private: |
ee1fe73e ILT |
1182 | // This is a General_options with everything set to its default |
1183 | // value. A Position_dependent_options created with no argument | |
1184 | // will take its values from here. | |
1185 | static General_options default_options_; | |
bae7f79e ILT |
1186 | }; |
1187 | ||
ee1fe73e | 1188 | |
bae7f79e ILT |
1189 | // A single file or library argument from the command line. |
1190 | ||
ead1e424 | 1191 | class Input_file_argument |
bae7f79e ILT |
1192 | { |
1193 | public: | |
51dee2fe ILT |
1194 | // name: file name or library name |
1195 | // is_lib: true if name is a library name: that is, emits the leading | |
1196 | // "lib" and trailing ".so"/".a" from the name | |
1197 | // extra_search_path: an extra directory to look for the file, prior | |
1198 | // to checking the normal library search path. If this is "", | |
1199 | // then no extra directory is added. | |
88dd47ac | 1200 | // just_symbols: whether this file only defines symbols. |
51dee2fe | 1201 | // options: The position dependent options at this point in the |
ad2d6943 | 1202 | // command line, such as --whole-archive. |
ead1e424 | 1203 | Input_file_argument() |
88dd47ac ILT |
1204 | : name_(), is_lib_(false), extra_search_path_(""), just_symbols_(false), |
1205 | options_() | |
ead1e424 ILT |
1206 | { } |
1207 | ||
1208 | Input_file_argument(const char* name, bool is_lib, | |
51dee2fe | 1209 | const char* extra_search_path, |
ee1fe73e ILT |
1210 | bool just_symbols, |
1211 | const Position_dependent_options& options) | |
1212 | : name_(name), is_lib_(is_lib), extra_search_path_(extra_search_path), | |
1213 | just_symbols_(just_symbols), options_(options) | |
1214 | { } | |
1215 | ||
1216 | // You can also pass in a General_options instance instead of a | |
1217 | // Position_dependent_options. In that case, we extract the | |
1218 | // position-independent vars from the General_options and only store | |
1219 | // those. | |
1220 | Input_file_argument(const char* name, bool is_lib, | |
1221 | const char* extra_search_path, | |
1222 | bool just_symbols, | |
1223 | const General_options& options) | |
51dee2fe | 1224 | : name_(name), is_lib_(is_lib), extra_search_path_(extra_search_path), |
88dd47ac | 1225 | just_symbols_(just_symbols), options_(options) |
bae7f79e ILT |
1226 | { } |
1227 | ||
1228 | const char* | |
1229 | name() const | |
dbe717ef | 1230 | { return this->name_.c_str(); } |
bae7f79e ILT |
1231 | |
1232 | const Position_dependent_options& | |
1233 | options() const | |
1234 | { return this->options_; } | |
1235 | ||
1236 | bool | |
1237 | is_lib() const | |
61ba1cf9 | 1238 | { return this->is_lib_; } |
bae7f79e | 1239 | |
51dee2fe ILT |
1240 | const char* |
1241 | extra_search_path() const | |
1242 | { | |
1243 | return (this->extra_search_path_.empty() | |
1244 | ? NULL | |
ee1fe73e | 1245 | : this->extra_search_path_.c_str()); |
51dee2fe ILT |
1246 | } |
1247 | ||
88dd47ac ILT |
1248 | // Return whether we should only read symbols from this file. |
1249 | bool | |
1250 | just_symbols() const | |
1251 | { return this->just_symbols_; } | |
1252 | ||
51dee2fe ILT |
1253 | // Return whether this file may require a search using the -L |
1254 | // options. | |
1255 | bool | |
1256 | may_need_search() const | |
1257 | { return this->is_lib_ || !this->extra_search_path_.empty(); } | |
1258 | ||
bae7f79e | 1259 | private: |
dbe717ef ILT |
1260 | // We use std::string, not const char*, here for convenience when |
1261 | // using script files, so that we do not have to preserve the string | |
1262 | // in that case. | |
1263 | std::string name_; | |
61ba1cf9 | 1264 | bool is_lib_; |
51dee2fe | 1265 | std::string extra_search_path_; |
88dd47ac | 1266 | bool just_symbols_; |
bae7f79e ILT |
1267 | Position_dependent_options options_; |
1268 | }; | |
1269 | ||
ead1e424 ILT |
1270 | // A file or library, or a group, from the command line. |
1271 | ||
1272 | class Input_argument | |
1273 | { | |
1274 | public: | |
1275 | // Create a file or library argument. | |
1276 | explicit Input_argument(Input_file_argument file) | |
1277 | : is_file_(true), file_(file), group_(NULL) | |
1278 | { } | |
1279 | ||
1280 | // Create a group argument. | |
1281 | explicit Input_argument(Input_file_group* group) | |
1282 | : is_file_(false), group_(group) | |
1283 | { } | |
1284 | ||
1285 | // Return whether this is a file. | |
1286 | bool | |
1287 | is_file() const | |
1288 | { return this->is_file_; } | |
1289 | ||
1290 | // Return whether this is a group. | |
1291 | bool | |
1292 | is_group() const | |
1293 | { return !this->is_file_; } | |
1294 | ||
1295 | // Return the information about the file. | |
1296 | const Input_file_argument& | |
1297 | file() const | |
1298 | { | |
a3ad94ed | 1299 | gold_assert(this->is_file_); |
ead1e424 ILT |
1300 | return this->file_; |
1301 | } | |
1302 | ||
1303 | // Return the information about the group. | |
1304 | const Input_file_group* | |
1305 | group() const | |
1306 | { | |
a3ad94ed | 1307 | gold_assert(!this->is_file_); |
ead1e424 ILT |
1308 | return this->group_; |
1309 | } | |
1310 | ||
1311 | Input_file_group* | |
1312 | group() | |
1313 | { | |
a3ad94ed | 1314 | gold_assert(!this->is_file_); |
ead1e424 ILT |
1315 | return this->group_; |
1316 | } | |
1317 | ||
1318 | private: | |
1319 | bool is_file_; | |
1320 | Input_file_argument file_; | |
1321 | Input_file_group* group_; | |
1322 | }; | |
1323 | ||
072fe7ce ILT |
1324 | typedef std::vector<Input_argument> Input_argument_list; |
1325 | ||
ead1e424 ILT |
1326 | // A group from the command line. This is a set of arguments within |
1327 | // --start-group ... --end-group. | |
1328 | ||
1329 | class Input_file_group | |
92e059d8 | 1330 | { |
ead1e424 | 1331 | public: |
072fe7ce | 1332 | typedef Input_argument_list::const_iterator const_iterator; |
ead1e424 ILT |
1333 | |
1334 | Input_file_group() | |
1335 | : files_() | |
1336 | { } | |
1337 | ||
1338 | // Add a file to the end of the group. | |
1339 | void | |
1340 | add_file(const Input_file_argument& arg) | |
1341 | { this->files_.push_back(Input_argument(arg)); } | |
1342 | ||
1343 | // Iterators to iterate over the group contents. | |
1344 | ||
1345 | const_iterator | |
1346 | begin() const | |
1347 | { return this->files_.begin(); } | |
1348 | ||
1349 | const_iterator | |
1350 | end() const | |
1351 | { return this->files_.end(); } | |
1352 | ||
1353 | private: | |
072fe7ce | 1354 | Input_argument_list files_; |
92e059d8 ILT |
1355 | }; |
1356 | ||
dbe717ef ILT |
1357 | // A list of files from the command line or a script. |
1358 | ||
1359 | class Input_arguments | |
1360 | { | |
1361 | public: | |
dbe717ef ILT |
1362 | typedef Input_argument_list::const_iterator const_iterator; |
1363 | ||
1364 | Input_arguments() | |
1365 | : input_argument_list_(), in_group_(false) | |
1366 | { } | |
1367 | ||
1368 | // Add a file. | |
1369 | void | |
1370 | add_file(const Input_file_argument& arg); | |
1371 | ||
1372 | // Start a group (the --start-group option). | |
1373 | void | |
1374 | start_group(); | |
1375 | ||
1376 | // End a group (the --end-group option). | |
1377 | void | |
1378 | end_group(); | |
1379 | ||
1380 | // Return whether we are currently in a group. | |
1381 | bool | |
1382 | in_group() const | |
1383 | { return this->in_group_; } | |
1384 | ||
fe9a4c12 ILT |
1385 | // The number of entries in the list. |
1386 | int | |
1387 | size() const | |
1388 | { return this->input_argument_list_.size(); } | |
1389 | ||
dbe717ef ILT |
1390 | // Iterators to iterate over the list of input files. |
1391 | ||
1392 | const_iterator | |
1393 | begin() const | |
1394 | { return this->input_argument_list_.begin(); } | |
1395 | ||
1396 | const_iterator | |
1397 | end() const | |
1398 | { return this->input_argument_list_.end(); } | |
1399 | ||
1400 | // Return whether the list is empty. | |
1401 | bool | |
1402 | empty() const | |
1403 | { return this->input_argument_list_.empty(); } | |
1404 | ||
1405 | private: | |
1406 | Input_argument_list input_argument_list_; | |
1407 | bool in_group_; | |
1408 | }; | |
1409 | ||
ee1fe73e ILT |
1410 | |
1411 | // All the information read from the command line. These are held in | |
1412 | // three separate structs: one to hold the options (--foo), one to | |
1413 | // hold the filenames listed on the commandline, and one to hold | |
1414 | // linker script information. This third is not a subset of the other | |
1415 | // two because linker scripts can be specified either as options (via | |
1416 | // -T) or as a file. | |
bae7f79e ILT |
1417 | |
1418 | class Command_line | |
1419 | { | |
1420 | public: | |
ead1e424 ILT |
1421 | typedef Input_arguments::const_iterator const_iterator; |
1422 | ||
a5dc0706 | 1423 | Command_line(); |
bae7f79e ILT |
1424 | |
1425 | // Process the command line options. This will exit with an | |
1426 | // appropriate error message if an unrecognized option is seen. | |
1427 | void | |
ee1fe73e | 1428 | process(int argc, const char** argv); |
bae7f79e | 1429 | |
a0451b38 | 1430 | // Process one command-line option. This takes the index of argv to |
ee1fe73e ILT |
1431 | // process, and returns the index for the next option. no_more_options |
1432 | // is set to true if argv[i] is "--". | |
61ba1cf9 | 1433 | int |
ee1fe73e ILT |
1434 | process_one_option(int argc, const char** argv, int i, |
1435 | bool* no_more_options); | |
3c2fafa5 | 1436 | |
61ba1cf9 | 1437 | // Get the general options. |
bae7f79e ILT |
1438 | const General_options& |
1439 | options() const | |
1440 | { return this->options_; } | |
1441 | ||
3c2fafa5 ILT |
1442 | // Get the position dependent options. |
1443 | const Position_dependent_options& | |
1444 | position_dependent_options() const | |
1445 | { return this->position_options_; } | |
1446 | ||
a5dc0706 ILT |
1447 | // Get the linker-script options. |
1448 | Script_options& | |
e5756efb | 1449 | script_options() |
a5dc0706 | 1450 | { return this->script_options_; } |
e5756efb | 1451 | |
a5dc0706 ILT |
1452 | // Get the version-script options: a convenience routine. |
1453 | const Version_script_info& | |
1454 | version_script() const | |
1455 | { return *this->script_options_.version_script_info(); } | |
e5756efb | 1456 | |
ee1fe73e ILT |
1457 | // Get the input files. |
1458 | Input_arguments& | |
1459 | inputs() | |
1460 | { return this->inputs_; } | |
1461 | ||
fe9a4c12 ILT |
1462 | // The number of input files. |
1463 | int | |
1464 | number_of_input_files() const | |
1465 | { return this->inputs_.size(); } | |
1466 | ||
ead1e424 ILT |
1467 | // Iterators to iterate over the list of input files. |
1468 | ||
1469 | const_iterator | |
1470 | begin() const | |
1471 | { return this->inputs_.begin(); } | |
1472 | ||
1473 | const_iterator | |
1474 | end() const | |
1475 | { return this->inputs_.end(); } | |
bae7f79e ILT |
1476 | |
1477 | private: | |
ead1e424 ILT |
1478 | Command_line(const Command_line&); |
1479 | Command_line& operator=(const Command_line&); | |
1480 | ||
bae7f79e ILT |
1481 | General_options options_; |
1482 | Position_dependent_options position_options_; | |
a5dc0706 | 1483 | Script_options script_options_; |
ead1e424 | 1484 | Input_arguments inputs_; |
bae7f79e ILT |
1485 | }; |
1486 | ||
1487 | } // End namespace gold. | |
1488 | ||
1489 | #endif // !defined(GOLD_OPTIONS_H) |