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bae7f79e ILT |
1 | // options.h -- handle command line options for 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 | ||
bae7f79e ILT |
23 | // Command_line |
24 | // Holds everything we get from the command line. | |
25 | // General_options (from Command_line::options()) | |
26 | // Options which are not position dependent. | |
27 | // Input_argument (from Command_line::inputs()) | |
28 | // The list of input files, including -l options. | |
29 | // Position_dependent_options (from Input_argument::options()) | |
30 | // Position dependent options which apply to this argument. | |
31 | ||
32 | #ifndef GOLD_OPTIONS_H | |
33 | #define GOLD_OPTIONS_H | |
34 | ||
ca3a67a5 | 35 | #include <cstdlib> |
bae7f79e | 36 | #include <list> |
61ba1cf9 | 37 | #include <string> |
92e059d8 | 38 | #include <vector> |
bae7f79e | 39 | |
bae7f79e ILT |
40 | namespace gold |
41 | { | |
42 | ||
43 | class Command_line; | |
ead1e424 | 44 | class Input_file_group; |
bae7f79e ILT |
45 | |
46 | namespace options { | |
47 | ||
48 | class Command_line_options; | |
49 | struct One_option; | |
50 | ||
51 | } // End namespace gold::options. | |
52 | ||
ad2d6943 ILT |
53 | // A directory to search. For each directory we record whether it is |
54 | // in the sysroot. We need to know this so that, if a linker script | |
55 | // is found within the sysroot, we will apply the sysroot to any files | |
56 | // named by that script. | |
57 | ||
58 | class Search_directory | |
59 | { | |
60 | public: | |
61 | // We need a default constructor because we put this in a | |
62 | // std::vector. | |
63 | Search_directory() | |
64 | : name_(NULL), put_in_sysroot_(false), is_in_sysroot_(false) | |
65 | { } | |
66 | ||
67 | // This is the usual constructor. | |
68 | Search_directory(const char* name, bool put_in_sysroot) | |
69 | : name_(name), put_in_sysroot_(put_in_sysroot), is_in_sysroot_(false) | |
70 | { gold_assert(!this->name_.empty()); } | |
71 | ||
72 | // This is called if we have a sysroot. The sysroot is prefixed to | |
73 | // any entries for which put_in_sysroot_ is true. is_in_sysroot_ is | |
74 | // set to true for any enries which are in the sysroot (this will | |
75 | // naturally include any entries for which put_in_sysroot_ is true). | |
76 | // SYSROOT is the sysroot, CANONICAL_SYSROOT is the result of | |
77 | // passing SYSROOT to lrealpath. | |
78 | void | |
79 | add_sysroot(const char* sysroot, const char* canonical_sysroot); | |
80 | ||
81 | // Get the directory name. | |
82 | const std::string& | |
83 | name() const | |
84 | { return this->name_; } | |
85 | ||
86 | // Return whether this directory is in the sysroot. | |
87 | bool | |
88 | is_in_sysroot() const | |
89 | { return this->is_in_sysroot_; } | |
90 | ||
91 | private: | |
92 | std::string name_; | |
93 | bool put_in_sysroot_; | |
94 | bool is_in_sysroot_; | |
95 | }; | |
96 | ||
bae7f79e ILT |
97 | // The position independent options which apply to the whole link. |
98 | // There are a lot of them. | |
99 | ||
100 | class General_options | |
101 | { | |
102 | public: | |
103 | General_options(); | |
104 | ||
a6badf5a ILT |
105 | // -E: export dynamic symbols. |
106 | bool | |
107 | export_dynamic() const | |
108 | { return this->export_dynamic_; } | |
109 | ||
dbe717ef ILT |
110 | // -I: dynamic linker name. |
111 | const char* | |
112 | dynamic_linker() const | |
113 | { return this->dynamic_linker_; } | |
114 | ||
bae7f79e | 115 | // -L: Library search path. |
ad2d6943 | 116 | typedef std::vector<Search_directory> Dir_list; |
bae7f79e ILT |
117 | |
118 | const Dir_list& | |
119 | search_path() const | |
120 | { return this->search_path_; } | |
121 | ||
ca3a67a5 ILT |
122 | // -O: optimization level (0: don't try to optimize output size). |
123 | int | |
124 | optimization_level() const | |
125 | { return this->optimization_level_; } | |
126 | ||
61ba1cf9 ILT |
127 | // -o: Output file name. |
128 | const char* | |
129 | output_file_name() const | |
130 | { return this->output_file_name_; } | |
131 | ||
bae7f79e ILT |
132 | // -r: Whether we are doing a relocatable link. |
133 | bool | |
134 | is_relocatable() const | |
135 | { return this->is_relocatable_; } | |
136 | ||
9e2dcb77 ILT |
137 | // -s: Strip all symbols. |
138 | bool | |
139 | strip_all() const | |
140 | { return this->strip_ == STRIP_ALL; } | |
141 | ||
142 | // -S: Strip debugging information. | |
143 | bool | |
144 | strip_debug() const | |
145 | { return this->strip_ == STRIP_ALL || this->strip_ == STRIP_DEBUG; } | |
146 | ||
51b08ebe ILT |
147 | // -Bsymbolic: bind defined symbols locally. |
148 | bool | |
149 | symbolic() const | |
150 | { return this->symbolic_; } | |
151 | ||
7da52175 ILT |
152 | // --eh-frame-hdr: Whether to generate an exception frame header. |
153 | bool | |
154 | create_eh_frame_hdr() const | |
155 | { return this->create_eh_frame_hdr_; } | |
156 | ||
41f542e7 ILT |
157 | // --rpath: The runtime search path. |
158 | const Dir_list& | |
159 | rpath() const | |
160 | { return this->rpath_; } | |
161 | ||
15b3cfae ILT |
162 | // --rpath-link: The link time search patch for shared libraries. |
163 | const Dir_list& | |
164 | rpath_link() const | |
165 | { return this->rpath_link_; } | |
166 | ||
92e059d8 ILT |
167 | // --shared: Whether generating a shared object. |
168 | bool | |
169 | is_shared() const | |
170 | { return this->is_shared_; } | |
171 | ||
bae7f79e ILT |
172 | // --static: Whether doing a static link. |
173 | bool | |
174 | is_static() const | |
175 | { return this->is_static_; } | |
176 | ||
0c5e9c22 | 177 | // --stats: Print resource usage statistics. |
e44fcf3b ILT |
178 | bool |
179 | print_stats() const | |
180 | { return this->print_stats_; } | |
181 | ||
ad2d6943 ILT |
182 | // --sysroot: The system root of a cross-linker. |
183 | const std::string& | |
184 | sysroot() const | |
185 | { return this->sysroot_; } | |
186 | ||
0c5e9c22 ILT |
187 | // -Ttext: The address of the .text section |
188 | uint64_t | |
189 | text_segment_address() const | |
190 | { return this->text_segment_address_; } | |
191 | ||
192 | // Whether -Ttext was used. | |
193 | bool | |
194 | user_set_text_segment_address() const | |
195 | { return this->text_segment_address_ != -1U; } | |
196 | ||
fe9a4c12 ILT |
197 | // --threads: Whether to use threads. |
198 | bool | |
199 | threads() const | |
200 | { return this->threads_; } | |
201 | ||
202 | // --thread-count-initial: Threads to use in initial pass. | |
203 | int | |
204 | thread_count_initial() const | |
205 | { return this->thread_count_initial_; } | |
206 | ||
207 | // --thread-count-middle: Threads to use in middle pass. | |
208 | int | |
209 | thread_count_middle() const | |
210 | { return this->thread_count_middle_; } | |
211 | ||
212 | // --thread-count-final: Threads to use in final pass. | |
213 | int | |
214 | thread_count_final() const | |
215 | { return this->thread_count_final_; } | |
216 | ||
bae7f79e | 217 | private: |
dbe717ef ILT |
218 | // Don't copy this structure. |
219 | General_options(const General_options&); | |
220 | General_options& operator=(const General_options&); | |
221 | ||
bae7f79e ILT |
222 | friend class Command_line; |
223 | friend class options::Command_line_options; | |
224 | ||
9e2dcb77 ILT |
225 | // Which symbols to strip. |
226 | enum Strip | |
227 | { | |
228 | // Don't strip any symbols. | |
229 | STRIP_NONE, | |
230 | // Strip all symbols. | |
231 | STRIP_ALL, | |
232 | // Strip debugging information. | |
233 | STRIP_DEBUG | |
234 | }; | |
235 | ||
a6badf5a ILT |
236 | void |
237 | set_export_dynamic() | |
238 | { this->export_dynamic_ = true; } | |
239 | ||
dbe717ef ILT |
240 | void |
241 | set_dynamic_linker(const char* arg) | |
242 | { this->dynamic_linker_ = arg; } | |
243 | ||
bae7f79e ILT |
244 | void |
245 | add_to_search_path(const char* arg) | |
ad2d6943 ILT |
246 | { this->search_path_.push_back(Search_directory(arg, false)); } |
247 | ||
248 | void | |
249 | add_to_search_path_with_sysroot(const char* arg) | |
250 | { this->search_path_.push_back(Search_directory(arg, true)); } | |
bae7f79e | 251 | |
ca3a67a5 ILT |
252 | void |
253 | set_optimization_level(const char* arg) | |
254 | { this->optimization_level_ = atoi(arg); } | |
255 | ||
61ba1cf9 ILT |
256 | void |
257 | set_output_file_name(const char* arg) | |
258 | { this->output_file_name_ = arg; } | |
259 | ||
bae7f79e ILT |
260 | void |
261 | set_relocatable() | |
262 | { this->is_relocatable_ = true; } | |
263 | ||
9e2dcb77 ILT |
264 | void |
265 | set_strip_all() | |
266 | { this->strip_ = STRIP_ALL; } | |
267 | ||
46738c9a ILT |
268 | // Note: normalize_options() depends on the fact that this turns off |
269 | // STRIP_ALL if it were already set. | |
9e2dcb77 ILT |
270 | void |
271 | set_strip_debug() | |
272 | { this->strip_ = STRIP_DEBUG; } | |
273 | ||
51b08ebe ILT |
274 | void |
275 | set_symbolic() | |
276 | { this->symbolic_ = true; } | |
277 | ||
7da52175 | 278 | void |
192f9b85 | 279 | set_create_eh_frame_hdr() |
7da52175 ILT |
280 | { this->create_eh_frame_hdr_ = true; } |
281 | ||
41f542e7 ILT |
282 | void |
283 | add_to_rpath(const char* arg) | |
ad2d6943 | 284 | { this->rpath_.push_back(Search_directory(arg, false)); } |
41f542e7 | 285 | |
15b3cfae ILT |
286 | void |
287 | add_to_rpath_link(const char* arg) | |
ad2d6943 | 288 | { this->rpath_link_.push_back(Search_directory(arg, false)); } |
15b3cfae | 289 | |
92e059d8 ILT |
290 | void |
291 | set_shared() | |
292 | { this->is_shared_ = true; } | |
293 | ||
bae7f79e ILT |
294 | void |
295 | set_static() | |
296 | { this->is_static_ = true; } | |
297 | ||
e44fcf3b ILT |
298 | void |
299 | set_stats() | |
300 | { this->print_stats_ = true; } | |
301 | ||
ad2d6943 ILT |
302 | void |
303 | set_sysroot(const char* arg) | |
304 | { this->sysroot_ = arg; } | |
305 | ||
0c5e9c22 ILT |
306 | void |
307 | set_text_segment_address(const char* arg) | |
308 | { | |
309 | char* endptr; | |
310 | this->text_segment_address_ = strtoull(arg, &endptr, 0); | |
311 | if (*endptr != '\0' | |
312 | || this->text_segment_address_ == -1U) | |
313 | { | |
314 | fprintf(stderr, _("%s: invalid argument to -Ttext: %s\n"), | |
315 | program_name, arg); | |
316 | ::exit(1); | |
317 | } | |
318 | } | |
319 | ||
fe9a4c12 ILT |
320 | int |
321 | parse_thread_count(const char* arg) | |
322 | { | |
323 | char* endptr; | |
324 | int count = strtol(arg, &endptr, 0); | |
325 | if (*endptr != '\0' || count < 0) | |
326 | { | |
327 | fprintf(stderr, _("%s: invalid thread count: %s\n"), | |
328 | program_name, arg); | |
329 | ::exit(1); | |
330 | } | |
331 | return count; | |
332 | } | |
333 | ||
334 | void | |
335 | set_threads() | |
336 | { this->threads_ = true; } | |
337 | ||
338 | void | |
339 | clear_threads() | |
340 | { this->threads_ = false; } | |
341 | ||
342 | void | |
343 | set_thread_count(const char* arg) | |
344 | { | |
345 | int count = this->parse_thread_count(arg); | |
346 | this->thread_count_initial_ = count; | |
347 | this->thread_count_middle_ = count; | |
348 | this->thread_count_final_ = count; | |
349 | } | |
350 | ||
351 | void | |
352 | set_thread_count_initial(const char* arg) | |
353 | { this->thread_count_initial_ = this->parse_thread_count(arg); } | |
354 | ||
355 | void | |
356 | set_thread_count_middle(const char* arg) | |
357 | { this->thread_count_initial_ = this->parse_thread_count(arg); } | |
358 | ||
359 | void | |
360 | set_thread_count_final(const char* arg) | |
361 | { this->thread_count_initial_ = this->parse_thread_count(arg); } | |
362 | ||
652ec9bd ILT |
363 | void |
364 | ignore(const char*) | |
365 | { } | |
366 | ||
ad2d6943 ILT |
367 | // Apply any sysroot to the directory lists. |
368 | void | |
369 | add_sysroot(); | |
370 | ||
a6badf5a | 371 | bool export_dynamic_; |
dbe717ef | 372 | const char* dynamic_linker_; |
bae7f79e | 373 | Dir_list search_path_; |
ca3a67a5 | 374 | int optimization_level_; |
61ba1cf9 | 375 | const char* output_file_name_; |
bae7f79e | 376 | bool is_relocatable_; |
9e2dcb77 | 377 | Strip strip_; |
51b08ebe | 378 | bool symbolic_; |
7da52175 | 379 | bool create_eh_frame_hdr_; |
41f542e7 | 380 | Dir_list rpath_; |
15b3cfae | 381 | Dir_list rpath_link_; |
92e059d8 | 382 | bool is_shared_; |
bae7f79e | 383 | bool is_static_; |
e44fcf3b | 384 | bool print_stats_; |
ad2d6943 | 385 | std::string sysroot_; |
0c5e9c22 | 386 | uint64_t text_segment_address_; |
fe9a4c12 ILT |
387 | bool threads_; |
388 | int thread_count_initial_; | |
389 | int thread_count_middle_; | |
390 | int thread_count_final_; | |
bae7f79e ILT |
391 | }; |
392 | ||
393 | // The current state of the position dependent options. | |
394 | ||
395 | class Position_dependent_options | |
396 | { | |
397 | public: | |
398 | Position_dependent_options(); | |
399 | ||
61611222 ILT |
400 | // -Bdynamic/-Bstatic: Whether we are searching for a static archive |
401 | // -rather than a shared object. | |
bae7f79e | 402 | bool |
dbe717ef | 403 | do_static_search() const |
bae7f79e ILT |
404 | { return this->do_static_search_; } |
405 | ||
dbe717ef ILT |
406 | // --as-needed: Whether to add a DT_NEEDED argument only if the |
407 | // dynamic object is used. | |
408 | bool | |
409 | as_needed() const | |
410 | { return this->as_needed_; } | |
bae7f79e | 411 | |
4973341a ILT |
412 | // --whole-archive: Whether to include the entire contents of an |
413 | // --archive. | |
414 | bool | |
415 | include_whole_archive() const | |
416 | { return this->include_whole_archive_; } | |
417 | ||
bae7f79e ILT |
418 | void |
419 | set_static_search() | |
420 | { this->do_static_search_ = true; } | |
421 | ||
422 | void | |
423 | set_dynamic_search() | |
424 | { this->do_static_search_ = false; } | |
425 | ||
dbe717ef ILT |
426 | void |
427 | set_as_needed() | |
428 | { this->as_needed_ = true; } | |
429 | ||
430 | void | |
431 | clear_as_needed() | |
432 | { this->as_needed_ = false; } | |
433 | ||
4973341a ILT |
434 | void |
435 | set_whole_archive() | |
436 | { this->include_whole_archive_ = true; } | |
437 | ||
438 | void | |
439 | clear_whole_archive() | |
440 | { this->include_whole_archive_ = false; } | |
441 | ||
dbe717ef | 442 | private: |
bae7f79e | 443 | bool do_static_search_; |
dbe717ef | 444 | bool as_needed_; |
4973341a | 445 | bool include_whole_archive_; |
bae7f79e ILT |
446 | }; |
447 | ||
448 | // A single file or library argument from the command line. | |
449 | ||
ead1e424 | 450 | class Input_file_argument |
bae7f79e ILT |
451 | { |
452 | public: | |
51dee2fe ILT |
453 | // name: file name or library name |
454 | // is_lib: true if name is a library name: that is, emits the leading | |
455 | // "lib" and trailing ".so"/".a" from the name | |
456 | // extra_search_path: an extra directory to look for the file, prior | |
457 | // to checking the normal library search path. If this is "", | |
458 | // then no extra directory is added. | |
459 | // options: The position dependent options at this point in the | |
ad2d6943 | 460 | // command line, such as --whole-archive. |
ead1e424 | 461 | Input_file_argument() |
51dee2fe | 462 | : name_(), is_lib_(false), extra_search_path_(""), options_() |
ead1e424 ILT |
463 | { } |
464 | ||
465 | Input_file_argument(const char* name, bool is_lib, | |
51dee2fe | 466 | const char* extra_search_path, |
ead1e424 | 467 | const Position_dependent_options& options) |
51dee2fe ILT |
468 | : name_(name), is_lib_(is_lib), extra_search_path_(extra_search_path), |
469 | options_(options) | |
bae7f79e ILT |
470 | { } |
471 | ||
472 | const char* | |
473 | name() const | |
dbe717ef | 474 | { return this->name_.c_str(); } |
bae7f79e ILT |
475 | |
476 | const Position_dependent_options& | |
477 | options() const | |
478 | { return this->options_; } | |
479 | ||
480 | bool | |
481 | is_lib() const | |
61ba1cf9 | 482 | { return this->is_lib_; } |
bae7f79e | 483 | |
51dee2fe ILT |
484 | const char* |
485 | extra_search_path() const | |
486 | { | |
487 | return (this->extra_search_path_.empty() | |
488 | ? NULL | |
489 | : this->extra_search_path_.c_str()); | |
490 | } | |
491 | ||
492 | // Return whether this file may require a search using the -L | |
493 | // options. | |
494 | bool | |
495 | may_need_search() const | |
496 | { return this->is_lib_ || !this->extra_search_path_.empty(); } | |
497 | ||
bae7f79e | 498 | private: |
dbe717ef ILT |
499 | // We use std::string, not const char*, here for convenience when |
500 | // using script files, so that we do not have to preserve the string | |
501 | // in that case. | |
502 | std::string name_; | |
61ba1cf9 | 503 | bool is_lib_; |
51dee2fe | 504 | std::string extra_search_path_; |
bae7f79e ILT |
505 | Position_dependent_options options_; |
506 | }; | |
507 | ||
ead1e424 ILT |
508 | // A file or library, or a group, from the command line. |
509 | ||
510 | class Input_argument | |
511 | { | |
512 | public: | |
513 | // Create a file or library argument. | |
514 | explicit Input_argument(Input_file_argument file) | |
515 | : is_file_(true), file_(file), group_(NULL) | |
516 | { } | |
517 | ||
518 | // Create a group argument. | |
519 | explicit Input_argument(Input_file_group* group) | |
520 | : is_file_(false), group_(group) | |
521 | { } | |
522 | ||
523 | // Return whether this is a file. | |
524 | bool | |
525 | is_file() const | |
526 | { return this->is_file_; } | |
527 | ||
528 | // Return whether this is a group. | |
529 | bool | |
530 | is_group() const | |
531 | { return !this->is_file_; } | |
532 | ||
533 | // Return the information about the file. | |
534 | const Input_file_argument& | |
535 | file() const | |
536 | { | |
a3ad94ed | 537 | gold_assert(this->is_file_); |
ead1e424 ILT |
538 | return this->file_; |
539 | } | |
540 | ||
541 | // Return the information about the group. | |
542 | const Input_file_group* | |
543 | group() const | |
544 | { | |
a3ad94ed | 545 | gold_assert(!this->is_file_); |
ead1e424 ILT |
546 | return this->group_; |
547 | } | |
548 | ||
549 | Input_file_group* | |
550 | group() | |
551 | { | |
a3ad94ed | 552 | gold_assert(!this->is_file_); |
ead1e424 ILT |
553 | return this->group_; |
554 | } | |
555 | ||
556 | private: | |
557 | bool is_file_; | |
558 | Input_file_argument file_; | |
559 | Input_file_group* group_; | |
560 | }; | |
561 | ||
562 | // A group from the command line. This is a set of arguments within | |
563 | // --start-group ... --end-group. | |
564 | ||
565 | class Input_file_group | |
92e059d8 | 566 | { |
ead1e424 ILT |
567 | public: |
568 | typedef std::vector<Input_argument> Files; | |
569 | typedef Files::const_iterator const_iterator; | |
570 | ||
571 | Input_file_group() | |
572 | : files_() | |
573 | { } | |
574 | ||
575 | // Add a file to the end of the group. | |
576 | void | |
577 | add_file(const Input_file_argument& arg) | |
578 | { this->files_.push_back(Input_argument(arg)); } | |
579 | ||
580 | // Iterators to iterate over the group contents. | |
581 | ||
582 | const_iterator | |
583 | begin() const | |
584 | { return this->files_.begin(); } | |
585 | ||
586 | const_iterator | |
587 | end() const | |
588 | { return this->files_.end(); } | |
589 | ||
590 | private: | |
591 | Files files_; | |
92e059d8 ILT |
592 | }; |
593 | ||
dbe717ef ILT |
594 | // A list of files from the command line or a script. |
595 | ||
596 | class Input_arguments | |
597 | { | |
598 | public: | |
599 | typedef std::vector<Input_argument> Input_argument_list; | |
600 | typedef Input_argument_list::const_iterator const_iterator; | |
601 | ||
602 | Input_arguments() | |
603 | : input_argument_list_(), in_group_(false) | |
604 | { } | |
605 | ||
606 | // Add a file. | |
607 | void | |
608 | add_file(const Input_file_argument& arg); | |
609 | ||
610 | // Start a group (the --start-group option). | |
611 | void | |
612 | start_group(); | |
613 | ||
614 | // End a group (the --end-group option). | |
615 | void | |
616 | end_group(); | |
617 | ||
618 | // Return whether we are currently in a group. | |
619 | bool | |
620 | in_group() const | |
621 | { return this->in_group_; } | |
622 | ||
fe9a4c12 ILT |
623 | // The number of entries in the list. |
624 | int | |
625 | size() const | |
626 | { return this->input_argument_list_.size(); } | |
627 | ||
dbe717ef ILT |
628 | // Iterators to iterate over the list of input files. |
629 | ||
630 | const_iterator | |
631 | begin() const | |
632 | { return this->input_argument_list_.begin(); } | |
633 | ||
634 | const_iterator | |
635 | end() const | |
636 | { return this->input_argument_list_.end(); } | |
637 | ||
638 | // Return whether the list is empty. | |
639 | bool | |
640 | empty() const | |
641 | { return this->input_argument_list_.empty(); } | |
642 | ||
643 | private: | |
644 | Input_argument_list input_argument_list_; | |
645 | bool in_group_; | |
646 | }; | |
647 | ||
bae7f79e ILT |
648 | // All the information read from the command line. |
649 | ||
650 | class Command_line | |
651 | { | |
652 | public: | |
ead1e424 ILT |
653 | typedef Input_arguments::const_iterator const_iterator; |
654 | ||
bae7f79e ILT |
655 | Command_line(); |
656 | ||
657 | // Process the command line options. This will exit with an | |
658 | // appropriate error message if an unrecognized option is seen. | |
659 | void | |
660 | process(int argc, char** argv); | |
661 | ||
61ba1cf9 ILT |
662 | // Handle a -l option. |
663 | int | |
664 | process_l_option(int, char**, char*); | |
665 | ||
ead1e424 ILT |
666 | // Handle a --start-group option. |
667 | void | |
668 | start_group(const char* arg); | |
669 | ||
670 | // Handle a --end-group option. | |
671 | void | |
672 | end_group(const char* arg); | |
673 | ||
61ba1cf9 | 674 | // Get the general options. |
bae7f79e ILT |
675 | const General_options& |
676 | options() const | |
677 | { return this->options_; } | |
678 | ||
fe9a4c12 ILT |
679 | // The number of input files. |
680 | int | |
681 | number_of_input_files() const | |
682 | { return this->inputs_.size(); } | |
683 | ||
ead1e424 ILT |
684 | // Iterators to iterate over the list of input files. |
685 | ||
686 | const_iterator | |
687 | begin() const | |
688 | { return this->inputs_.begin(); } | |
689 | ||
690 | const_iterator | |
691 | end() const | |
692 | { return this->inputs_.end(); } | |
bae7f79e ILT |
693 | |
694 | private: | |
ead1e424 ILT |
695 | Command_line(const Command_line&); |
696 | Command_line& operator=(const Command_line&); | |
697 | ||
698 | // Report usage error. | |
699 | void | |
700 | usage() ATTRIBUTE_NORETURN; | |
701 | void | |
702 | usage(const char* msg, const char* opt) ATTRIBUTE_NORETURN; | |
703 | void | |
704 | usage(const char* msg, char opt) ATTRIBUTE_NORETURN; | |
705 | ||
706 | // Apply a command line option. | |
707 | void | |
708 | apply_option(const gold::options::One_option&, const char*); | |
709 | ||
710 | // Add a file. | |
711 | void | |
712 | add_file(const char* name, bool is_lib); | |
bae7f79e | 713 | |
46738c9a ILT |
714 | // Examine the result of processing the command-line, and verify |
715 | // the flags do not contradict each other or are otherwise illegal. | |
716 | void | |
717 | normalize_options(); | |
718 | ||
bae7f79e ILT |
719 | General_options options_; |
720 | Position_dependent_options position_options_; | |
ead1e424 | 721 | Input_arguments inputs_; |
bae7f79e ILT |
722 | }; |
723 | ||
724 | } // End namespace gold. | |
725 | ||
726 | #endif // !defined(GOLD_OPTIONS_H) |