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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 | |
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 | ||
e2827e5f ILT |
151 | // --allow-shlib-undefined: do not warn about unresolved symbols in |
152 | // --shared libraries. | |
153 | bool | |
154 | allow_shlib_undefined() const | |
155 | { return this->allow_shlib_undefined_; } | |
156 | ||
51b08ebe ILT |
157 | // -Bsymbolic: bind defined symbols locally. |
158 | bool | |
159 | symbolic() const | |
160 | { return this->symbolic_; } | |
161 | ||
a2b1aa12 ILT |
162 | // --demangle: demangle C++ symbols in our log messages. |
163 | bool | |
164 | demangle() const | |
165 | { return this->demangle_; } | |
166 | ||
a55ce7fe ILT |
167 | // --detect-odr-violations: Whether to search for One Defn Rule violations. |
168 | bool | |
169 | detect_odr_violations() const | |
170 | { return this->detect_odr_violations_; } | |
171 | ||
7da52175 ILT |
172 | // --eh-frame-hdr: Whether to generate an exception frame header. |
173 | bool | |
174 | create_eh_frame_hdr() const | |
175 | { return this->create_eh_frame_hdr_; } | |
176 | ||
41f542e7 ILT |
177 | // --rpath: The runtime search path. |
178 | const Dir_list& | |
179 | rpath() const | |
180 | { return this->rpath_; } | |
181 | ||
15b3cfae ILT |
182 | // --rpath-link: The link time search patch for shared libraries. |
183 | const Dir_list& | |
184 | rpath_link() const | |
185 | { return this->rpath_link_; } | |
186 | ||
92e059d8 ILT |
187 | // --shared: Whether generating a shared object. |
188 | bool | |
189 | is_shared() const | |
190 | { return this->is_shared_; } | |
191 | ||
bae7f79e ILT |
192 | // --static: Whether doing a static link. |
193 | bool | |
194 | is_static() const | |
195 | { return this->is_static_; } | |
196 | ||
0c5e9c22 | 197 | // --stats: Print resource usage statistics. |
e44fcf3b ILT |
198 | bool |
199 | print_stats() const | |
200 | { return this->print_stats_; } | |
201 | ||
ad2d6943 ILT |
202 | // --sysroot: The system root of a cross-linker. |
203 | const std::string& | |
204 | sysroot() const | |
205 | { return this->sysroot_; } | |
206 | ||
0c5e9c22 ILT |
207 | // -Ttext: The address of the .text section |
208 | uint64_t | |
209 | text_segment_address() const | |
210 | { return this->text_segment_address_; } | |
211 | ||
212 | // Whether -Ttext was used. | |
213 | bool | |
214 | user_set_text_segment_address() const | |
215 | { return this->text_segment_address_ != -1U; } | |
216 | ||
fe9a4c12 ILT |
217 | // --threads: Whether to use threads. |
218 | bool | |
219 | threads() const | |
220 | { return this->threads_; } | |
221 | ||
222 | // --thread-count-initial: Threads to use in initial pass. | |
223 | int | |
224 | thread_count_initial() const | |
225 | { return this->thread_count_initial_; } | |
226 | ||
227 | // --thread-count-middle: Threads to use in middle pass. | |
228 | int | |
229 | thread_count_middle() const | |
230 | { return this->thread_count_middle_; } | |
231 | ||
232 | // --thread-count-final: Threads to use in final pass. | |
233 | int | |
234 | thread_count_final() const | |
235 | { return this->thread_count_final_; } | |
236 | ||
35cdfc9a ILT |
237 | // -z execstack, -z noexecstack |
238 | bool | |
239 | is_execstack_set() const | |
240 | { return this->execstack_ != EXECSTACK_FROM_INPUT; } | |
241 | ||
242 | bool | |
243 | is_stack_executable() const | |
244 | { return this->execstack_ == EXECSTACK_YES; } | |
245 | ||
bae7f79e | 246 | private: |
dbe717ef ILT |
247 | // Don't copy this structure. |
248 | General_options(const General_options&); | |
249 | General_options& operator=(const General_options&); | |
250 | ||
bae7f79e ILT |
251 | friend class Command_line; |
252 | friend class options::Command_line_options; | |
253 | ||
9e2dcb77 ILT |
254 | // Which symbols to strip. |
255 | enum Strip | |
256 | { | |
257 | // Don't strip any symbols. | |
258 | STRIP_NONE, | |
259 | // Strip all symbols. | |
260 | STRIP_ALL, | |
261 | // Strip debugging information. | |
262 | STRIP_DEBUG | |
263 | }; | |
264 | ||
35cdfc9a ILT |
265 | // Whether to mark the stack as executable. |
266 | enum Execstack | |
267 | { | |
268 | // Not set on command line. | |
269 | EXECSTACK_FROM_INPUT, | |
270 | // Mark the stack as executable. | |
271 | EXECSTACK_YES, | |
272 | // Mark the stack as not executable. | |
273 | EXECSTACK_NO | |
274 | }; | |
275 | ||
a6badf5a ILT |
276 | void |
277 | set_export_dynamic() | |
278 | { this->export_dynamic_ = true; } | |
279 | ||
dbe717ef ILT |
280 | void |
281 | set_dynamic_linker(const char* arg) | |
282 | { this->dynamic_linker_ = arg; } | |
283 | ||
bae7f79e ILT |
284 | void |
285 | add_to_search_path(const char* arg) | |
ad2d6943 ILT |
286 | { this->search_path_.push_back(Search_directory(arg, false)); } |
287 | ||
288 | void | |
289 | add_to_search_path_with_sysroot(const char* arg) | |
290 | { this->search_path_.push_back(Search_directory(arg, true)); } | |
bae7f79e | 291 | |
ca3a67a5 ILT |
292 | void |
293 | set_optimization_level(const char* arg) | |
294 | { this->optimization_level_ = atoi(arg); } | |
295 | ||
61ba1cf9 ILT |
296 | void |
297 | set_output_file_name(const char* arg) | |
298 | { this->output_file_name_ = arg; } | |
299 | ||
bae7f79e ILT |
300 | void |
301 | set_relocatable() | |
302 | { this->is_relocatable_ = true; } | |
303 | ||
9e2dcb77 ILT |
304 | void |
305 | set_strip_all() | |
306 | { this->strip_ = STRIP_ALL; } | |
307 | ||
46738c9a ILT |
308 | // Note: normalize_options() depends on the fact that this turns off |
309 | // STRIP_ALL if it were already set. | |
9e2dcb77 ILT |
310 | void |
311 | set_strip_debug() | |
312 | { this->strip_ = STRIP_DEBUG; } | |
313 | ||
e2827e5f ILT |
314 | void |
315 | set_allow_shlib_undefined() | |
316 | { this->allow_shlib_undefined_ = true; } | |
317 | ||
318 | void | |
319 | set_no_allow_shlib_undefined() | |
320 | { this->allow_shlib_undefined_ = false; } | |
321 | ||
51b08ebe ILT |
322 | void |
323 | set_symbolic() | |
324 | { this->symbolic_ = true; } | |
325 | ||
a2b1aa12 ILT |
326 | void |
327 | set_demangle() | |
328 | { this->demangle_ = true; } | |
329 | ||
330 | void | |
331 | clear_demangle() | |
332 | { this->demangle_ = false; } | |
333 | ||
a55ce7fe ILT |
334 | void |
335 | set_detect_odr_violations() | |
336 | { this->detect_odr_violations_ = true; } | |
337 | ||
7da52175 | 338 | void |
192f9b85 | 339 | set_create_eh_frame_hdr() |
7da52175 ILT |
340 | { this->create_eh_frame_hdr_ = true; } |
341 | ||
41f542e7 ILT |
342 | void |
343 | add_to_rpath(const char* arg) | |
ad2d6943 | 344 | { this->rpath_.push_back(Search_directory(arg, false)); } |
41f542e7 | 345 | |
15b3cfae ILT |
346 | void |
347 | add_to_rpath_link(const char* arg) | |
ad2d6943 | 348 | { this->rpath_link_.push_back(Search_directory(arg, false)); } |
15b3cfae | 349 | |
92e059d8 ILT |
350 | void |
351 | set_shared() | |
352 | { this->is_shared_ = true; } | |
353 | ||
bae7f79e ILT |
354 | void |
355 | set_static() | |
356 | { this->is_static_ = true; } | |
357 | ||
e44fcf3b ILT |
358 | void |
359 | set_stats() | |
360 | { this->print_stats_ = true; } | |
361 | ||
ad2d6943 ILT |
362 | void |
363 | set_sysroot(const char* arg) | |
364 | { this->sysroot_ = arg; } | |
365 | ||
0c5e9c22 ILT |
366 | void |
367 | set_text_segment_address(const char* arg) | |
368 | { | |
369 | char* endptr; | |
370 | this->text_segment_address_ = strtoull(arg, &endptr, 0); | |
371 | if (*endptr != '\0' | |
372 | || this->text_segment_address_ == -1U) | |
373 | { | |
374 | fprintf(stderr, _("%s: invalid argument to -Ttext: %s\n"), | |
375 | program_name, arg); | |
376 | ::exit(1); | |
377 | } | |
378 | } | |
379 | ||
fe9a4c12 ILT |
380 | int |
381 | parse_thread_count(const char* arg) | |
382 | { | |
383 | char* endptr; | |
384 | int count = strtol(arg, &endptr, 0); | |
385 | if (*endptr != '\0' || count < 0) | |
386 | { | |
387 | fprintf(stderr, _("%s: invalid thread count: %s\n"), | |
388 | program_name, arg); | |
389 | ::exit(1); | |
390 | } | |
391 | return count; | |
392 | } | |
393 | ||
394 | void | |
395 | set_threads() | |
396 | { this->threads_ = true; } | |
397 | ||
398 | void | |
399 | clear_threads() | |
400 | { this->threads_ = false; } | |
401 | ||
402 | void | |
403 | set_thread_count(const char* arg) | |
404 | { | |
405 | int count = this->parse_thread_count(arg); | |
406 | this->thread_count_initial_ = count; | |
407 | this->thread_count_middle_ = count; | |
408 | this->thread_count_final_ = count; | |
409 | } | |
410 | ||
411 | void | |
412 | set_thread_count_initial(const char* arg) | |
413 | { this->thread_count_initial_ = this->parse_thread_count(arg); } | |
414 | ||
415 | void | |
416 | set_thread_count_middle(const char* arg) | |
417 | { this->thread_count_initial_ = this->parse_thread_count(arg); } | |
418 | ||
419 | void | |
420 | set_thread_count_final(const char* arg) | |
421 | { this->thread_count_initial_ = this->parse_thread_count(arg); } | |
422 | ||
652ec9bd ILT |
423 | void |
424 | ignore(const char*) | |
425 | { } | |
426 | ||
35cdfc9a ILT |
427 | void |
428 | set_execstack() | |
429 | { this->execstack_ = EXECSTACK_YES; } | |
430 | ||
431 | void | |
432 | set_noexecstack() | |
433 | { this->execstack_ = EXECSTACK_NO; } | |
434 | ||
435 | // Handle the -z option. | |
436 | void | |
437 | handle_z_option(const char*); | |
438 | ||
ad2d6943 ILT |
439 | // Apply any sysroot to the directory lists. |
440 | void | |
441 | add_sysroot(); | |
442 | ||
a6badf5a | 443 | bool export_dynamic_; |
dbe717ef | 444 | const char* dynamic_linker_; |
bae7f79e | 445 | Dir_list search_path_; |
ca3a67a5 | 446 | int optimization_level_; |
61ba1cf9 | 447 | const char* output_file_name_; |
bae7f79e | 448 | bool is_relocatable_; |
9e2dcb77 | 449 | Strip strip_; |
e2827e5f | 450 | bool allow_shlib_undefined_; |
51b08ebe | 451 | bool symbolic_; |
a2b1aa12 | 452 | bool demangle_; |
a55ce7fe | 453 | bool detect_odr_violations_; |
7da52175 | 454 | bool create_eh_frame_hdr_; |
41f542e7 | 455 | Dir_list rpath_; |
15b3cfae | 456 | Dir_list rpath_link_; |
92e059d8 | 457 | bool is_shared_; |
bae7f79e | 458 | bool is_static_; |
e44fcf3b | 459 | bool print_stats_; |
ad2d6943 | 460 | std::string sysroot_; |
0c5e9c22 | 461 | uint64_t text_segment_address_; |
fe9a4c12 ILT |
462 | bool threads_; |
463 | int thread_count_initial_; | |
464 | int thread_count_middle_; | |
465 | int thread_count_final_; | |
35cdfc9a | 466 | Execstack execstack_; |
bae7f79e ILT |
467 | }; |
468 | ||
469 | // The current state of the position dependent options. | |
470 | ||
471 | class Position_dependent_options | |
472 | { | |
473 | public: | |
474 | Position_dependent_options(); | |
475 | ||
61611222 ILT |
476 | // -Bdynamic/-Bstatic: Whether we are searching for a static archive |
477 | // -rather than a shared object. | |
bae7f79e | 478 | bool |
dbe717ef | 479 | do_static_search() const |
bae7f79e ILT |
480 | { return this->do_static_search_; } |
481 | ||
dbe717ef ILT |
482 | // --as-needed: Whether to add a DT_NEEDED argument only if the |
483 | // dynamic object is used. | |
484 | bool | |
485 | as_needed() const | |
486 | { return this->as_needed_; } | |
bae7f79e | 487 | |
4973341a ILT |
488 | // --whole-archive: Whether to include the entire contents of an |
489 | // --archive. | |
490 | bool | |
491 | include_whole_archive() const | |
492 | { return this->include_whole_archive_; } | |
493 | ||
bae7f79e ILT |
494 | void |
495 | set_static_search() | |
496 | { this->do_static_search_ = true; } | |
497 | ||
498 | void | |
499 | set_dynamic_search() | |
500 | { this->do_static_search_ = false; } | |
501 | ||
dbe717ef ILT |
502 | void |
503 | set_as_needed() | |
504 | { this->as_needed_ = true; } | |
505 | ||
506 | void | |
507 | clear_as_needed() | |
508 | { this->as_needed_ = false; } | |
509 | ||
4973341a ILT |
510 | void |
511 | set_whole_archive() | |
512 | { this->include_whole_archive_ = true; } | |
513 | ||
514 | void | |
515 | clear_whole_archive() | |
516 | { this->include_whole_archive_ = false; } | |
517 | ||
dbe717ef | 518 | private: |
bae7f79e | 519 | bool do_static_search_; |
dbe717ef | 520 | bool as_needed_; |
4973341a | 521 | bool include_whole_archive_; |
bae7f79e ILT |
522 | }; |
523 | ||
524 | // A single file or library argument from the command line. | |
525 | ||
ead1e424 | 526 | class Input_file_argument |
bae7f79e ILT |
527 | { |
528 | public: | |
51dee2fe ILT |
529 | // name: file name or library name |
530 | // is_lib: true if name is a library name: that is, emits the leading | |
531 | // "lib" and trailing ".so"/".a" from the name | |
532 | // extra_search_path: an extra directory to look for the file, prior | |
533 | // to checking the normal library search path. If this is "", | |
534 | // then no extra directory is added. | |
535 | // options: The position dependent options at this point in the | |
ad2d6943 | 536 | // command line, such as --whole-archive. |
ead1e424 | 537 | Input_file_argument() |
51dee2fe | 538 | : name_(), is_lib_(false), extra_search_path_(""), options_() |
ead1e424 ILT |
539 | { } |
540 | ||
541 | Input_file_argument(const char* name, bool is_lib, | |
51dee2fe | 542 | const char* extra_search_path, |
ead1e424 | 543 | const Position_dependent_options& options) |
51dee2fe ILT |
544 | : name_(name), is_lib_(is_lib), extra_search_path_(extra_search_path), |
545 | options_(options) | |
bae7f79e ILT |
546 | { } |
547 | ||
548 | const char* | |
549 | name() const | |
dbe717ef | 550 | { return this->name_.c_str(); } |
bae7f79e ILT |
551 | |
552 | const Position_dependent_options& | |
553 | options() const | |
554 | { return this->options_; } | |
555 | ||
556 | bool | |
557 | is_lib() const | |
61ba1cf9 | 558 | { return this->is_lib_; } |
bae7f79e | 559 | |
51dee2fe ILT |
560 | const char* |
561 | extra_search_path() const | |
562 | { | |
563 | return (this->extra_search_path_.empty() | |
564 | ? NULL | |
565 | : this->extra_search_path_.c_str()); | |
566 | } | |
567 | ||
568 | // Return whether this file may require a search using the -L | |
569 | // options. | |
570 | bool | |
571 | may_need_search() const | |
572 | { return this->is_lib_ || !this->extra_search_path_.empty(); } | |
573 | ||
bae7f79e | 574 | private: |
dbe717ef ILT |
575 | // We use std::string, not const char*, here for convenience when |
576 | // using script files, so that we do not have to preserve the string | |
577 | // in that case. | |
578 | std::string name_; | |
61ba1cf9 | 579 | bool is_lib_; |
51dee2fe | 580 | std::string extra_search_path_; |
bae7f79e ILT |
581 | Position_dependent_options options_; |
582 | }; | |
583 | ||
ead1e424 ILT |
584 | // A file or library, or a group, from the command line. |
585 | ||
586 | class Input_argument | |
587 | { | |
588 | public: | |
589 | // Create a file or library argument. | |
590 | explicit Input_argument(Input_file_argument file) | |
591 | : is_file_(true), file_(file), group_(NULL) | |
592 | { } | |
593 | ||
594 | // Create a group argument. | |
595 | explicit Input_argument(Input_file_group* group) | |
596 | : is_file_(false), group_(group) | |
597 | { } | |
598 | ||
599 | // Return whether this is a file. | |
600 | bool | |
601 | is_file() const | |
602 | { return this->is_file_; } | |
603 | ||
604 | // Return whether this is a group. | |
605 | bool | |
606 | is_group() const | |
607 | { return !this->is_file_; } | |
608 | ||
609 | // Return the information about the file. | |
610 | const Input_file_argument& | |
611 | file() const | |
612 | { | |
a3ad94ed | 613 | gold_assert(this->is_file_); |
ead1e424 ILT |
614 | return this->file_; |
615 | } | |
616 | ||
617 | // Return the information about the group. | |
618 | const Input_file_group* | |
619 | group() const | |
620 | { | |
a3ad94ed | 621 | gold_assert(!this->is_file_); |
ead1e424 ILT |
622 | return this->group_; |
623 | } | |
624 | ||
625 | Input_file_group* | |
626 | group() | |
627 | { | |
a3ad94ed | 628 | gold_assert(!this->is_file_); |
ead1e424 ILT |
629 | return this->group_; |
630 | } | |
631 | ||
632 | private: | |
633 | bool is_file_; | |
634 | Input_file_argument file_; | |
635 | Input_file_group* group_; | |
636 | }; | |
637 | ||
638 | // A group from the command line. This is a set of arguments within | |
639 | // --start-group ... --end-group. | |
640 | ||
641 | class Input_file_group | |
92e059d8 | 642 | { |
ead1e424 ILT |
643 | public: |
644 | typedef std::vector<Input_argument> Files; | |
645 | typedef Files::const_iterator const_iterator; | |
646 | ||
647 | Input_file_group() | |
648 | : files_() | |
649 | { } | |
650 | ||
651 | // Add a file to the end of the group. | |
652 | void | |
653 | add_file(const Input_file_argument& arg) | |
654 | { this->files_.push_back(Input_argument(arg)); } | |
655 | ||
656 | // Iterators to iterate over the group contents. | |
657 | ||
658 | const_iterator | |
659 | begin() const | |
660 | { return this->files_.begin(); } | |
661 | ||
662 | const_iterator | |
663 | end() const | |
664 | { return this->files_.end(); } | |
665 | ||
666 | private: | |
667 | Files files_; | |
92e059d8 ILT |
668 | }; |
669 | ||
dbe717ef ILT |
670 | // A list of files from the command line or a script. |
671 | ||
672 | class Input_arguments | |
673 | { | |
674 | public: | |
675 | typedef std::vector<Input_argument> Input_argument_list; | |
676 | typedef Input_argument_list::const_iterator const_iterator; | |
677 | ||
678 | Input_arguments() | |
679 | : input_argument_list_(), in_group_(false) | |
680 | { } | |
681 | ||
682 | // Add a file. | |
683 | void | |
684 | add_file(const Input_file_argument& arg); | |
685 | ||
686 | // Start a group (the --start-group option). | |
687 | void | |
688 | start_group(); | |
689 | ||
690 | // End a group (the --end-group option). | |
691 | void | |
692 | end_group(); | |
693 | ||
694 | // Return whether we are currently in a group. | |
695 | bool | |
696 | in_group() const | |
697 | { return this->in_group_; } | |
698 | ||
fe9a4c12 ILT |
699 | // The number of entries in the list. |
700 | int | |
701 | size() const | |
702 | { return this->input_argument_list_.size(); } | |
703 | ||
dbe717ef ILT |
704 | // Iterators to iterate over the list of input files. |
705 | ||
706 | const_iterator | |
707 | begin() const | |
708 | { return this->input_argument_list_.begin(); } | |
709 | ||
710 | const_iterator | |
711 | end() const | |
712 | { return this->input_argument_list_.end(); } | |
713 | ||
714 | // Return whether the list is empty. | |
715 | bool | |
716 | empty() const | |
717 | { return this->input_argument_list_.empty(); } | |
718 | ||
719 | private: | |
720 | Input_argument_list input_argument_list_; | |
721 | bool in_group_; | |
722 | }; | |
723 | ||
bae7f79e ILT |
724 | // All the information read from the command line. |
725 | ||
726 | class Command_line | |
727 | { | |
728 | public: | |
ead1e424 ILT |
729 | typedef Input_arguments::const_iterator const_iterator; |
730 | ||
bae7f79e ILT |
731 | Command_line(); |
732 | ||
733 | // Process the command line options. This will exit with an | |
734 | // appropriate error message if an unrecognized option is seen. | |
735 | void | |
736 | process(int argc, char** argv); | |
737 | ||
a0451b38 ILT |
738 | // Process one command-line option. This takes the index of argv to |
739 | // process, and returns the index for the next option. | |
740 | int | |
741 | process_one_option(int argc, char** argv, int i, bool* no_more_options); | |
742 | ||
61ba1cf9 ILT |
743 | // Handle a -l option. |
744 | int | |
3c2fafa5 | 745 | process_l_option(int, char**, char*, bool); |
61ba1cf9 | 746 | |
ead1e424 ILT |
747 | // Handle a --start-group option. |
748 | void | |
749 | start_group(const char* arg); | |
750 | ||
751 | // Handle a --end-group option. | |
752 | void | |
753 | end_group(const char* arg); | |
754 | ||
3c2fafa5 ILT |
755 | // Get an option argument--a helper function for special processing. |
756 | const char* | |
757 | get_special_argument(const char* longname, int argc, char** argv, | |
758 | const char* arg, bool long_option, | |
759 | int *pret); | |
760 | ||
61ba1cf9 | 761 | // Get the general options. |
bae7f79e ILT |
762 | const General_options& |
763 | options() const | |
764 | { return this->options_; } | |
765 | ||
3c2fafa5 ILT |
766 | // Get the position dependent options. |
767 | const Position_dependent_options& | |
768 | position_dependent_options() const | |
769 | { return this->position_options_; } | |
770 | ||
fe9a4c12 ILT |
771 | // The number of input files. |
772 | int | |
773 | number_of_input_files() const | |
774 | { return this->inputs_.size(); } | |
775 | ||
ead1e424 ILT |
776 | // Iterators to iterate over the list of input files. |
777 | ||
778 | const_iterator | |
779 | begin() const | |
780 | { return this->inputs_.begin(); } | |
781 | ||
782 | const_iterator | |
783 | end() const | |
784 | { return this->inputs_.end(); } | |
bae7f79e ILT |
785 | |
786 | private: | |
ead1e424 ILT |
787 | Command_line(const Command_line&); |
788 | Command_line& operator=(const Command_line&); | |
789 | ||
790 | // Report usage error. | |
791 | void | |
792 | usage() ATTRIBUTE_NORETURN; | |
793 | void | |
794 | usage(const char* msg, const char* opt) ATTRIBUTE_NORETURN; | |
795 | void | |
796 | usage(const char* msg, char opt) ATTRIBUTE_NORETURN; | |
797 | ||
798 | // Apply a command line option. | |
799 | void | |
800 | apply_option(const gold::options::One_option&, const char*); | |
801 | ||
802 | // Add a file. | |
803 | void | |
804 | add_file(const char* name, bool is_lib); | |
bae7f79e | 805 | |
46738c9a ILT |
806 | // Examine the result of processing the command-line, and verify |
807 | // the flags do not contradict each other or are otherwise illegal. | |
808 | void | |
809 | normalize_options(); | |
810 | ||
bae7f79e ILT |
811 | General_options options_; |
812 | Position_dependent_options position_options_; | |
ead1e424 | 813 | Input_arguments inputs_; |
bae7f79e ILT |
814 | }; |
815 | ||
816 | } // End namespace gold. | |
817 | ||
818 | #endif // !defined(GOLD_OPTIONS_H) |