Commit | Line | Data |
---|---|---|
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 | |
3c2fafa5 ILT |
40 | #include "script.h" |
41 | ||
bae7f79e ILT |
42 | namespace gold |
43 | { | |
44 | ||
45 | class Command_line; | |
ead1e424 | 46 | class Input_file_group; |
3c2fafa5 | 47 | class Position_dependent_options; |
bae7f79e ILT |
48 | |
49 | namespace options { | |
50 | ||
51 | class Command_line_options; | |
52 | struct One_option; | |
35cdfc9a | 53 | struct One_z_option; |
bae7f79e ILT |
54 | |
55 | } // End namespace gold::options. | |
56 | ||
ad2d6943 ILT |
57 | // A directory to search. For each directory we record whether it is |
58 | // in the sysroot. We need to know this so that, if a linker script | |
59 | // is found within the sysroot, we will apply the sysroot to any files | |
60 | // named by that script. | |
61 | ||
62 | class Search_directory | |
63 | { | |
64 | public: | |
65 | // We need a default constructor because we put this in a | |
66 | // std::vector. | |
67 | Search_directory() | |
68 | : name_(NULL), put_in_sysroot_(false), is_in_sysroot_(false) | |
69 | { } | |
70 | ||
71 | // This is the usual constructor. | |
72 | Search_directory(const char* name, bool put_in_sysroot) | |
73 | : name_(name), put_in_sysroot_(put_in_sysroot), is_in_sysroot_(false) | |
74 | { gold_assert(!this->name_.empty()); } | |
75 | ||
76 | // This is called if we have a sysroot. The sysroot is prefixed to | |
77 | // any entries for which put_in_sysroot_ is true. is_in_sysroot_ is | |
78 | // set to true for any enries which are in the sysroot (this will | |
79 | // naturally include any entries for which put_in_sysroot_ is true). | |
80 | // SYSROOT is the sysroot, CANONICAL_SYSROOT is the result of | |
81 | // passing SYSROOT to lrealpath. | |
82 | void | |
83 | add_sysroot(const char* sysroot, const char* canonical_sysroot); | |
84 | ||
85 | // Get the directory name. | |
86 | const std::string& | |
87 | name() const | |
88 | { return this->name_; } | |
89 | ||
90 | // Return whether this directory is in the sysroot. | |
91 | bool | |
92 | is_in_sysroot() const | |
93 | { return this->is_in_sysroot_; } | |
94 | ||
95 | private: | |
96 | std::string name_; | |
97 | bool put_in_sysroot_; | |
98 | bool is_in_sysroot_; | |
99 | }; | |
100 | ||
bae7f79e ILT |
101 | // The position independent options which apply to the whole link. |
102 | // There are a lot of them. | |
103 | ||
104 | class General_options | |
105 | { | |
106 | public: | |
107 | General_options(); | |
108 | ||
a6badf5a ILT |
109 | // -E: export dynamic symbols. |
110 | bool | |
111 | export_dynamic() const | |
112 | { return this->export_dynamic_; } | |
113 | ||
dbe717ef ILT |
114 | // -I: dynamic linker name. |
115 | const char* | |
116 | dynamic_linker() const | |
117 | { return this->dynamic_linker_; } | |
118 | ||
bae7f79e | 119 | // -L: Library search path. |
ad2d6943 | 120 | typedef std::vector<Search_directory> Dir_list; |
bae7f79e ILT |
121 | |
122 | const Dir_list& | |
123 | search_path() const | |
124 | { return this->search_path_; } | |
125 | ||
ca3a67a5 ILT |
126 | // -O: optimization level (0: don't try to optimize output size). |
127 | int | |
128 | optimization_level() const | |
129 | { return this->optimization_level_; } | |
130 | ||
61ba1cf9 ILT |
131 | // -o: Output file name. |
132 | const char* | |
133 | output_file_name() const | |
134 | { return this->output_file_name_; } | |
135 | ||
bae7f79e ILT |
136 | // -r: Whether we are doing a relocatable link. |
137 | bool | |
138 | is_relocatable() const | |
139 | { return this->is_relocatable_; } | |
140 | ||
9e2dcb77 ILT |
141 | // -s: Strip all symbols. |
142 | bool | |
143 | strip_all() const | |
144 | { return this->strip_ == STRIP_ALL; } | |
145 | ||
146 | // -S: Strip debugging information. | |
147 | bool | |
148 | strip_debug() const | |
149 | { return this->strip_ == STRIP_ALL || this->strip_ == STRIP_DEBUG; } | |
150 | ||
51b08ebe ILT |
151 | // -Bsymbolic: bind defined symbols locally. |
152 | bool | |
153 | symbolic() const | |
154 | { return this->symbolic_; } | |
155 | ||
7da52175 ILT |
156 | // --eh-frame-hdr: Whether to generate an exception frame header. |
157 | bool | |
158 | create_eh_frame_hdr() const | |
159 | { return this->create_eh_frame_hdr_; } | |
160 | ||
41f542e7 ILT |
161 | // --rpath: The runtime search path. |
162 | const Dir_list& | |
163 | rpath() const | |
164 | { return this->rpath_; } | |
165 | ||
15b3cfae ILT |
166 | // --rpath-link: The link time search patch for shared libraries. |
167 | const Dir_list& | |
168 | rpath_link() const | |
169 | { return this->rpath_link_; } | |
170 | ||
92e059d8 ILT |
171 | // --shared: Whether generating a shared object. |
172 | bool | |
173 | is_shared() const | |
174 | { return this->is_shared_; } | |
175 | ||
bae7f79e ILT |
176 | // --static: Whether doing a static link. |
177 | bool | |
178 | is_static() const | |
179 | { return this->is_static_; } | |
180 | ||
0c5e9c22 | 181 | // --stats: Print resource usage statistics. |
e44fcf3b ILT |
182 | bool |
183 | print_stats() const | |
184 | { return this->print_stats_; } | |
185 | ||
ad2d6943 ILT |
186 | // --sysroot: The system root of a cross-linker. |
187 | const std::string& | |
188 | sysroot() const | |
189 | { return this->sysroot_; } | |
190 | ||
0c5e9c22 ILT |
191 | // -Ttext: The address of the .text section |
192 | uint64_t | |
193 | text_segment_address() const | |
194 | { return this->text_segment_address_; } | |
195 | ||
196 | // Whether -Ttext was used. | |
197 | bool | |
198 | user_set_text_segment_address() const | |
199 | { return this->text_segment_address_ != -1U; } | |
200 | ||
fe9a4c12 ILT |
201 | // --threads: Whether to use threads. |
202 | bool | |
203 | threads() const | |
204 | { return this->threads_; } | |
205 | ||
206 | // --thread-count-initial: Threads to use in initial pass. | |
207 | int | |
208 | thread_count_initial() const | |
209 | { return this->thread_count_initial_; } | |
210 | ||
211 | // --thread-count-middle: Threads to use in middle pass. | |
212 | int | |
213 | thread_count_middle() const | |
214 | { return this->thread_count_middle_; } | |
215 | ||
216 | // --thread-count-final: Threads to use in final pass. | |
217 | int | |
218 | thread_count_final() const | |
219 | { return this->thread_count_final_; } | |
220 | ||
35cdfc9a ILT |
221 | // -z execstack, -z noexecstack |
222 | bool | |
223 | is_execstack_set() const | |
224 | { return this->execstack_ != EXECSTACK_FROM_INPUT; } | |
225 | ||
226 | bool | |
227 | is_stack_executable() const | |
228 | { return this->execstack_ == EXECSTACK_YES; } | |
229 | ||
bae7f79e | 230 | private: |
dbe717ef ILT |
231 | // Don't copy this structure. |
232 | General_options(const General_options&); | |
233 | General_options& operator=(const General_options&); | |
234 | ||
bae7f79e ILT |
235 | friend class Command_line; |
236 | friend class options::Command_line_options; | |
237 | ||
9e2dcb77 ILT |
238 | // Which symbols to strip. |
239 | enum Strip | |
240 | { | |
241 | // Don't strip any symbols. | |
242 | STRIP_NONE, | |
243 | // Strip all symbols. | |
244 | STRIP_ALL, | |
245 | // Strip debugging information. | |
246 | STRIP_DEBUG | |
247 | }; | |
248 | ||
35cdfc9a ILT |
249 | // Whether to mark the stack as executable. |
250 | enum Execstack | |
251 | { | |
252 | // Not set on command line. | |
253 | EXECSTACK_FROM_INPUT, | |
254 | // Mark the stack as executable. | |
255 | EXECSTACK_YES, | |
256 | // Mark the stack as not executable. | |
257 | EXECSTACK_NO | |
258 | }; | |
259 | ||
a6badf5a ILT |
260 | void |
261 | set_export_dynamic() | |
262 | { this->export_dynamic_ = true; } | |
263 | ||
dbe717ef ILT |
264 | void |
265 | set_dynamic_linker(const char* arg) | |
266 | { this->dynamic_linker_ = arg; } | |
267 | ||
bae7f79e ILT |
268 | void |
269 | add_to_search_path(const char* arg) | |
ad2d6943 ILT |
270 | { this->search_path_.push_back(Search_directory(arg, false)); } |
271 | ||
272 | void | |
273 | add_to_search_path_with_sysroot(const char* arg) | |
274 | { this->search_path_.push_back(Search_directory(arg, true)); } | |
bae7f79e | 275 | |
ca3a67a5 ILT |
276 | void |
277 | set_optimization_level(const char* arg) | |
278 | { this->optimization_level_ = atoi(arg); } | |
279 | ||
61ba1cf9 ILT |
280 | void |
281 | set_output_file_name(const char* arg) | |
282 | { this->output_file_name_ = arg; } | |
283 | ||
bae7f79e ILT |
284 | void |
285 | set_relocatable() | |
286 | { this->is_relocatable_ = true; } | |
287 | ||
9e2dcb77 ILT |
288 | void |
289 | set_strip_all() | |
290 | { this->strip_ = STRIP_ALL; } | |
291 | ||
46738c9a ILT |
292 | // Note: normalize_options() depends on the fact that this turns off |
293 | // STRIP_ALL if it were already set. | |
9e2dcb77 ILT |
294 | void |
295 | set_strip_debug() | |
296 | { this->strip_ = STRIP_DEBUG; } | |
297 | ||
51b08ebe ILT |
298 | void |
299 | set_symbolic() | |
300 | { this->symbolic_ = true; } | |
301 | ||
7da52175 | 302 | void |
192f9b85 | 303 | set_create_eh_frame_hdr() |
7da52175 ILT |
304 | { this->create_eh_frame_hdr_ = true; } |
305 | ||
41f542e7 ILT |
306 | void |
307 | add_to_rpath(const char* arg) | |
ad2d6943 | 308 | { this->rpath_.push_back(Search_directory(arg, false)); } |
41f542e7 | 309 | |
15b3cfae ILT |
310 | void |
311 | add_to_rpath_link(const char* arg) | |
ad2d6943 | 312 | { this->rpath_link_.push_back(Search_directory(arg, false)); } |
15b3cfae | 313 | |
92e059d8 ILT |
314 | void |
315 | set_shared() | |
316 | { this->is_shared_ = true; } | |
317 | ||
bae7f79e ILT |
318 | void |
319 | set_static() | |
320 | { this->is_static_ = true; } | |
321 | ||
e44fcf3b ILT |
322 | void |
323 | set_stats() | |
324 | { this->print_stats_ = true; } | |
325 | ||
ad2d6943 ILT |
326 | void |
327 | set_sysroot(const char* arg) | |
328 | { this->sysroot_ = arg; } | |
329 | ||
0c5e9c22 ILT |
330 | void |
331 | set_text_segment_address(const char* arg) | |
332 | { | |
333 | char* endptr; | |
334 | this->text_segment_address_ = strtoull(arg, &endptr, 0); | |
335 | if (*endptr != '\0' | |
336 | || this->text_segment_address_ == -1U) | |
337 | { | |
338 | fprintf(stderr, _("%s: invalid argument to -Ttext: %s\n"), | |
339 | program_name, arg); | |
340 | ::exit(1); | |
341 | } | |
342 | } | |
343 | ||
fe9a4c12 ILT |
344 | int |
345 | parse_thread_count(const char* arg) | |
346 | { | |
347 | char* endptr; | |
348 | int count = strtol(arg, &endptr, 0); | |
349 | if (*endptr != '\0' || count < 0) | |
350 | { | |
351 | fprintf(stderr, _("%s: invalid thread count: %s\n"), | |
352 | program_name, arg); | |
353 | ::exit(1); | |
354 | } | |
355 | return count; | |
356 | } | |
357 | ||
358 | void | |
359 | set_threads() | |
360 | { this->threads_ = true; } | |
361 | ||
362 | void | |
363 | clear_threads() | |
364 | { this->threads_ = false; } | |
365 | ||
366 | void | |
367 | set_thread_count(const char* arg) | |
368 | { | |
369 | int count = this->parse_thread_count(arg); | |
370 | this->thread_count_initial_ = count; | |
371 | this->thread_count_middle_ = count; | |
372 | this->thread_count_final_ = count; | |
373 | } | |
374 | ||
375 | void | |
376 | set_thread_count_initial(const char* arg) | |
377 | { this->thread_count_initial_ = this->parse_thread_count(arg); } | |
378 | ||
379 | void | |
380 | set_thread_count_middle(const char* arg) | |
381 | { this->thread_count_initial_ = this->parse_thread_count(arg); } | |
382 | ||
383 | void | |
384 | set_thread_count_final(const char* arg) | |
385 | { this->thread_count_initial_ = this->parse_thread_count(arg); } | |
386 | ||
652ec9bd ILT |
387 | void |
388 | ignore(const char*) | |
389 | { } | |
390 | ||
35cdfc9a ILT |
391 | void |
392 | set_execstack() | |
393 | { this->execstack_ = EXECSTACK_YES; } | |
394 | ||
395 | void | |
396 | set_noexecstack() | |
397 | { this->execstack_ = EXECSTACK_NO; } | |
398 | ||
399 | // Handle the -z option. | |
400 | void | |
401 | handle_z_option(const char*); | |
402 | ||
ad2d6943 ILT |
403 | // Apply any sysroot to the directory lists. |
404 | void | |
405 | add_sysroot(); | |
406 | ||
a6badf5a | 407 | bool export_dynamic_; |
dbe717ef | 408 | const char* dynamic_linker_; |
bae7f79e | 409 | Dir_list search_path_; |
ca3a67a5 | 410 | int optimization_level_; |
61ba1cf9 | 411 | const char* output_file_name_; |
bae7f79e | 412 | bool is_relocatable_; |
9e2dcb77 | 413 | Strip strip_; |
51b08ebe | 414 | bool symbolic_; |
7da52175 | 415 | bool create_eh_frame_hdr_; |
41f542e7 | 416 | Dir_list rpath_; |
15b3cfae | 417 | Dir_list rpath_link_; |
92e059d8 | 418 | bool is_shared_; |
bae7f79e | 419 | bool is_static_; |
e44fcf3b | 420 | bool print_stats_; |
ad2d6943 | 421 | std::string sysroot_; |
0c5e9c22 | 422 | uint64_t text_segment_address_; |
fe9a4c12 ILT |
423 | bool threads_; |
424 | int thread_count_initial_; | |
425 | int thread_count_middle_; | |
426 | int thread_count_final_; | |
35cdfc9a | 427 | Execstack execstack_; |
bae7f79e ILT |
428 | }; |
429 | ||
430 | // The current state of the position dependent options. | |
431 | ||
432 | class Position_dependent_options | |
433 | { | |
434 | public: | |
435 | Position_dependent_options(); | |
436 | ||
61611222 ILT |
437 | // -Bdynamic/-Bstatic: Whether we are searching for a static archive |
438 | // -rather than a shared object. | |
bae7f79e | 439 | bool |
dbe717ef | 440 | do_static_search() const |
bae7f79e ILT |
441 | { return this->do_static_search_; } |
442 | ||
dbe717ef ILT |
443 | // --as-needed: Whether to add a DT_NEEDED argument only if the |
444 | // dynamic object is used. | |
445 | bool | |
446 | as_needed() const | |
447 | { return this->as_needed_; } | |
bae7f79e | 448 | |
4973341a ILT |
449 | // --whole-archive: Whether to include the entire contents of an |
450 | // --archive. | |
451 | bool | |
452 | include_whole_archive() const | |
453 | { return this->include_whole_archive_; } | |
454 | ||
bae7f79e ILT |
455 | void |
456 | set_static_search() | |
457 | { this->do_static_search_ = true; } | |
458 | ||
459 | void | |
460 | set_dynamic_search() | |
461 | { this->do_static_search_ = false; } | |
462 | ||
dbe717ef ILT |
463 | void |
464 | set_as_needed() | |
465 | { this->as_needed_ = true; } | |
466 | ||
467 | void | |
468 | clear_as_needed() | |
469 | { this->as_needed_ = false; } | |
470 | ||
4973341a ILT |
471 | void |
472 | set_whole_archive() | |
473 | { this->include_whole_archive_ = true; } | |
474 | ||
475 | void | |
476 | clear_whole_archive() | |
477 | { this->include_whole_archive_ = false; } | |
478 | ||
dbe717ef | 479 | private: |
bae7f79e | 480 | bool do_static_search_; |
dbe717ef | 481 | bool as_needed_; |
4973341a | 482 | bool include_whole_archive_; |
bae7f79e ILT |
483 | }; |
484 | ||
485 | // A single file or library argument from the command line. | |
486 | ||
ead1e424 | 487 | class Input_file_argument |
bae7f79e ILT |
488 | { |
489 | public: | |
51dee2fe ILT |
490 | // name: file name or library name |
491 | // is_lib: true if name is a library name: that is, emits the leading | |
492 | // "lib" and trailing ".so"/".a" from the name | |
493 | // extra_search_path: an extra directory to look for the file, prior | |
494 | // to checking the normal library search path. If this is "", | |
495 | // then no extra directory is added. | |
496 | // options: The position dependent options at this point in the | |
ad2d6943 | 497 | // command line, such as --whole-archive. |
ead1e424 | 498 | Input_file_argument() |
51dee2fe | 499 | : name_(), is_lib_(false), extra_search_path_(""), options_() |
ead1e424 ILT |
500 | { } |
501 | ||
502 | Input_file_argument(const char* name, bool is_lib, | |
51dee2fe | 503 | const char* extra_search_path, |
ead1e424 | 504 | const Position_dependent_options& options) |
51dee2fe ILT |
505 | : name_(name), is_lib_(is_lib), extra_search_path_(extra_search_path), |
506 | options_(options) | |
bae7f79e ILT |
507 | { } |
508 | ||
509 | const char* | |
510 | name() const | |
dbe717ef | 511 | { return this->name_.c_str(); } |
bae7f79e ILT |
512 | |
513 | const Position_dependent_options& | |
514 | options() const | |
515 | { return this->options_; } | |
516 | ||
517 | bool | |
518 | is_lib() const | |
61ba1cf9 | 519 | { return this->is_lib_; } |
bae7f79e | 520 | |
51dee2fe ILT |
521 | const char* |
522 | extra_search_path() const | |
523 | { | |
524 | return (this->extra_search_path_.empty() | |
525 | ? NULL | |
526 | : this->extra_search_path_.c_str()); | |
527 | } | |
528 | ||
529 | // Return whether this file may require a search using the -L | |
530 | // options. | |
531 | bool | |
532 | may_need_search() const | |
533 | { return this->is_lib_ || !this->extra_search_path_.empty(); } | |
534 | ||
bae7f79e | 535 | private: |
dbe717ef ILT |
536 | // We use std::string, not const char*, here for convenience when |
537 | // using script files, so that we do not have to preserve the string | |
538 | // in that case. | |
539 | std::string name_; | |
61ba1cf9 | 540 | bool is_lib_; |
51dee2fe | 541 | std::string extra_search_path_; |
bae7f79e ILT |
542 | Position_dependent_options options_; |
543 | }; | |
544 | ||
ead1e424 ILT |
545 | // A file or library, or a group, from the command line. |
546 | ||
547 | class Input_argument | |
548 | { | |
549 | public: | |
550 | // Create a file or library argument. | |
551 | explicit Input_argument(Input_file_argument file) | |
552 | : is_file_(true), file_(file), group_(NULL) | |
553 | { } | |
554 | ||
555 | // Create a group argument. | |
556 | explicit Input_argument(Input_file_group* group) | |
557 | : is_file_(false), group_(group) | |
558 | { } | |
559 | ||
560 | // Return whether this is a file. | |
561 | bool | |
562 | is_file() const | |
563 | { return this->is_file_; } | |
564 | ||
565 | // Return whether this is a group. | |
566 | bool | |
567 | is_group() const | |
568 | { return !this->is_file_; } | |
569 | ||
570 | // Return the information about the file. | |
571 | const Input_file_argument& | |
572 | file() const | |
573 | { | |
a3ad94ed | 574 | gold_assert(this->is_file_); |
ead1e424 ILT |
575 | return this->file_; |
576 | } | |
577 | ||
578 | // Return the information about the group. | |
579 | const Input_file_group* | |
580 | group() const | |
581 | { | |
a3ad94ed | 582 | gold_assert(!this->is_file_); |
ead1e424 ILT |
583 | return this->group_; |
584 | } | |
585 | ||
586 | Input_file_group* | |
587 | group() | |
588 | { | |
a3ad94ed | 589 | gold_assert(!this->is_file_); |
ead1e424 ILT |
590 | return this->group_; |
591 | } | |
592 | ||
593 | private: | |
594 | bool is_file_; | |
595 | Input_file_argument file_; | |
596 | Input_file_group* group_; | |
597 | }; | |
598 | ||
599 | // A group from the command line. This is a set of arguments within | |
600 | // --start-group ... --end-group. | |
601 | ||
602 | class Input_file_group | |
92e059d8 | 603 | { |
ead1e424 ILT |
604 | public: |
605 | typedef std::vector<Input_argument> Files; | |
606 | typedef Files::const_iterator const_iterator; | |
607 | ||
608 | Input_file_group() | |
609 | : files_() | |
610 | { } | |
611 | ||
612 | // Add a file to the end of the group. | |
613 | void | |
614 | add_file(const Input_file_argument& arg) | |
615 | { this->files_.push_back(Input_argument(arg)); } | |
616 | ||
617 | // Iterators to iterate over the group contents. | |
618 | ||
619 | const_iterator | |
620 | begin() const | |
621 | { return this->files_.begin(); } | |
622 | ||
623 | const_iterator | |
624 | end() const | |
625 | { return this->files_.end(); } | |
626 | ||
627 | private: | |
628 | Files files_; | |
92e059d8 ILT |
629 | }; |
630 | ||
dbe717ef ILT |
631 | // A list of files from the command line or a script. |
632 | ||
633 | class Input_arguments | |
634 | { | |
635 | public: | |
636 | typedef std::vector<Input_argument> Input_argument_list; | |
637 | typedef Input_argument_list::const_iterator const_iterator; | |
638 | ||
639 | Input_arguments() | |
640 | : input_argument_list_(), in_group_(false) | |
641 | { } | |
642 | ||
643 | // Add a file. | |
644 | void | |
645 | add_file(const Input_file_argument& arg); | |
646 | ||
647 | // Start a group (the --start-group option). | |
648 | void | |
649 | start_group(); | |
650 | ||
651 | // End a group (the --end-group option). | |
652 | void | |
653 | end_group(); | |
654 | ||
655 | // Return whether we are currently in a group. | |
656 | bool | |
657 | in_group() const | |
658 | { return this->in_group_; } | |
659 | ||
fe9a4c12 ILT |
660 | // The number of entries in the list. |
661 | int | |
662 | size() const | |
663 | { return this->input_argument_list_.size(); } | |
664 | ||
dbe717ef ILT |
665 | // Iterators to iterate over the list of input files. |
666 | ||
667 | const_iterator | |
668 | begin() const | |
669 | { return this->input_argument_list_.begin(); } | |
670 | ||
671 | const_iterator | |
672 | end() const | |
673 | { return this->input_argument_list_.end(); } | |
674 | ||
675 | // Return whether the list is empty. | |
676 | bool | |
677 | empty() const | |
678 | { return this->input_argument_list_.empty(); } | |
679 | ||
680 | private: | |
681 | Input_argument_list input_argument_list_; | |
682 | bool in_group_; | |
683 | }; | |
684 | ||
bae7f79e ILT |
685 | // All the information read from the command line. |
686 | ||
687 | class Command_line | |
688 | { | |
689 | public: | |
ead1e424 ILT |
690 | typedef Input_arguments::const_iterator const_iterator; |
691 | ||
bae7f79e ILT |
692 | Command_line(); |
693 | ||
694 | // Process the command line options. This will exit with an | |
695 | // appropriate error message if an unrecognized option is seen. | |
696 | void | |
697 | process(int argc, char** argv); | |
698 | ||
61ba1cf9 ILT |
699 | // Handle a -l option. |
700 | int | |
3c2fafa5 | 701 | process_l_option(int, char**, char*, bool); |
61ba1cf9 | 702 | |
ead1e424 ILT |
703 | // Handle a --start-group option. |
704 | void | |
705 | start_group(const char* arg); | |
706 | ||
707 | // Handle a --end-group option. | |
708 | void | |
709 | end_group(const char* arg); | |
710 | ||
3c2fafa5 ILT |
711 | // Get an option argument--a helper function for special processing. |
712 | const char* | |
713 | get_special_argument(const char* longname, int argc, char** argv, | |
714 | const char* arg, bool long_option, | |
715 | int *pret); | |
716 | ||
61ba1cf9 | 717 | // Get the general options. |
bae7f79e ILT |
718 | const General_options& |
719 | options() const | |
720 | { return this->options_; } | |
721 | ||
3c2fafa5 ILT |
722 | // Get the position dependent options. |
723 | const Position_dependent_options& | |
724 | position_dependent_options() const | |
725 | { return this->position_options_; } | |
726 | ||
fe9a4c12 ILT |
727 | // The number of input files. |
728 | int | |
729 | number_of_input_files() const | |
730 | { return this->inputs_.size(); } | |
731 | ||
ead1e424 ILT |
732 | // Iterators to iterate over the list of input files. |
733 | ||
734 | const_iterator | |
735 | begin() const | |
736 | { return this->inputs_.begin(); } | |
737 | ||
738 | const_iterator | |
739 | end() const | |
740 | { return this->inputs_.end(); } | |
bae7f79e ILT |
741 | |
742 | private: | |
ead1e424 ILT |
743 | Command_line(const Command_line&); |
744 | Command_line& operator=(const Command_line&); | |
745 | ||
746 | // Report usage error. | |
747 | void | |
748 | usage() ATTRIBUTE_NORETURN; | |
749 | void | |
750 | usage(const char* msg, const char* opt) ATTRIBUTE_NORETURN; | |
751 | void | |
752 | usage(const char* msg, char opt) ATTRIBUTE_NORETURN; | |
753 | ||
754 | // Apply a command line option. | |
755 | void | |
756 | apply_option(const gold::options::One_option&, const char*); | |
757 | ||
758 | // Add a file. | |
759 | void | |
760 | add_file(const char* name, bool is_lib); | |
bae7f79e | 761 | |
46738c9a ILT |
762 | // Examine the result of processing the command-line, and verify |
763 | // the flags do not contradict each other or are otherwise illegal. | |
764 | void | |
765 | normalize_options(); | |
766 | ||
bae7f79e ILT |
767 | General_options options_; |
768 | Position_dependent_options position_options_; | |
ead1e424 | 769 | Input_arguments inputs_; |
bae7f79e ILT |
770 | }; |
771 | ||
772 | } // End namespace gold. | |
773 | ||
774 | #endif // !defined(GOLD_OPTIONS_H) |