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