Commit | Line | Data |
---|---|---|
bae7f79e ILT |
1 | // options.h -- handle command line options for gold -*- C++ -*- |
2 | ||
e5756efb | 3 | // Copyright 2006, 2007, 2008 Free Software Foundation, Inc. |
6cb15b7f ILT |
4 | // Written by Ian Lance Taylor <iant@google.com>. |
5 | ||
6 | // This file is part of gold. | |
7 | ||
8 | // This program is free software; you can redistribute it and/or modify | |
9 | // it under the terms of the GNU General Public License as published by | |
10 | // the Free Software Foundation; either version 3 of the License, or | |
11 | // (at your option) any later version. | |
12 | ||
13 | // This program is distributed in the hope that it will be useful, | |
14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | // GNU General Public License for more details. | |
17 | ||
18 | // You should have received a copy of the GNU General Public License | |
19 | // along with this program; if not, write to the Free Software | |
20 | // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | // MA 02110-1301, USA. | |
22 | ||
bae7f79e 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 | 48 | |
c7912668 ILT |
49 | namespace options |
50 | { | |
bae7f79e ILT |
51 | |
52 | class Command_line_options; | |
53 | struct One_option; | |
35cdfc9a | 54 | struct One_z_option; |
c7912668 | 55 | struct One_debug_option; |
bae7f79e ILT |
56 | |
57 | } // End namespace gold::options. | |
58 | ||
ad2d6943 ILT |
59 | // A directory to search. For each directory we record whether it is |
60 | // in the sysroot. We need to know this so that, if a linker script | |
61 | // is found within the sysroot, we will apply the sysroot to any files | |
62 | // named by that script. | |
63 | ||
64 | class Search_directory | |
65 | { | |
66 | public: | |
67 | // We need a default constructor because we put this in a | |
68 | // std::vector. | |
69 | Search_directory() | |
70 | : name_(NULL), put_in_sysroot_(false), is_in_sysroot_(false) | |
71 | { } | |
72 | ||
73 | // This is the usual constructor. | |
74 | Search_directory(const char* name, bool put_in_sysroot) | |
75 | : name_(name), put_in_sysroot_(put_in_sysroot), is_in_sysroot_(false) | |
15893b88 ILT |
76 | { |
77 | if (this->name_.empty()) | |
78 | this->name_ = "."; | |
79 | } | |
ad2d6943 ILT |
80 | |
81 | // This is called if we have a sysroot. The sysroot is prefixed to | |
82 | // any entries for which put_in_sysroot_ is true. is_in_sysroot_ is | |
83 | // set to true for any enries which are in the sysroot (this will | |
84 | // naturally include any entries for which put_in_sysroot_ is true). | |
85 | // SYSROOT is the sysroot, CANONICAL_SYSROOT is the result of | |
86 | // passing SYSROOT to lrealpath. | |
87 | void | |
88 | add_sysroot(const char* sysroot, const char* canonical_sysroot); | |
89 | ||
90 | // Get the directory name. | |
91 | const std::string& | |
92 | name() const | |
93 | { return this->name_; } | |
94 | ||
95 | // Return whether this directory is in the sysroot. | |
96 | bool | |
97 | is_in_sysroot() const | |
98 | { return this->is_in_sysroot_; } | |
99 | ||
100 | private: | |
101 | std::string name_; | |
102 | bool put_in_sysroot_; | |
103 | bool is_in_sysroot_; | |
104 | }; | |
105 | ||
bae7f79e ILT |
106 | // The position independent options which apply to the whole link. |
107 | // There are a lot of them. | |
108 | ||
109 | class General_options | |
110 | { | |
111 | public: | |
e5756efb | 112 | General_options(Script_options*); |
bae7f79e | 113 | |
d391083d ILT |
114 | // -e: set entry address. |
115 | const char* | |
116 | entry() const | |
e5756efb | 117 | { return this->script_options_->entry(); } |
d391083d | 118 | |
a6badf5a ILT |
119 | // -E: export dynamic symbols. |
120 | bool | |
121 | export_dynamic() const | |
122 | { return this->export_dynamic_; } | |
123 | ||
fced7afd ILT |
124 | // -h: shared library name. |
125 | const char* | |
126 | soname() const | |
127 | { return this->soname_; } | |
128 | ||
dbe717ef ILT |
129 | // -I: dynamic linker name. |
130 | const char* | |
131 | dynamic_linker() const | |
132 | { return this->dynamic_linker_; } | |
133 | ||
bae7f79e | 134 | // -L: Library search path. |
ad2d6943 | 135 | typedef std::vector<Search_directory> Dir_list; |
bae7f79e ILT |
136 | |
137 | const Dir_list& | |
138 | search_path() const | |
139 | { return this->search_path_; } | |
140 | ||
ca3a67a5 ILT |
141 | // -O: optimization level (0: don't try to optimize output size). |
142 | int | |
143 | optimization_level() const | |
144 | { return this->optimization_level_; } | |
145 | ||
61ba1cf9 ILT |
146 | // -o: Output file name. |
147 | const char* | |
148 | output_file_name() const | |
149 | { return this->output_file_name_; } | |
150 | ||
bae7f79e ILT |
151 | // -r: Whether we are doing a relocatable link. |
152 | bool | |
153 | is_relocatable() const | |
154 | { return this->is_relocatable_; } | |
155 | ||
9e2dcb77 ILT |
156 | // -s: Strip all symbols. |
157 | bool | |
158 | strip_all() const | |
159 | { return this->strip_ == STRIP_ALL; } | |
160 | ||
161 | // -S: Strip debugging information. | |
162 | bool | |
163 | strip_debug() const | |
164 | { return this->strip_ == STRIP_ALL || this->strip_ == STRIP_DEBUG; } | |
165 | ||
9a0910c3 ILT |
166 | // --strip-debug-gdb: strip only debugging information that's not |
167 | // used by gdb (at least, for gdb versions <= 6.7). | |
02d2ba74 ILT |
168 | bool |
169 | strip_debug_gdb() const | |
170 | { return this->strip_debug() || this->strip_ == STRIP_DEBUG_UNUSED_BY_GDB; } | |
171 | ||
e2827e5f ILT |
172 | // --allow-shlib-undefined: do not warn about unresolved symbols in |
173 | // --shared libraries. | |
174 | bool | |
175 | allow_shlib_undefined() const | |
176 | { return this->allow_shlib_undefined_; } | |
177 | ||
51b08ebe ILT |
178 | // -Bsymbolic: bind defined symbols locally. |
179 | bool | |
180 | symbolic() const | |
181 | { return this->symbolic_; } | |
182 | ||
9a0910c3 ILT |
183 | // --compress-debug-sections: compress .debug_* sections in the |
184 | // output file using the given compression method. This is useful | |
185 | // when the tools (such as gdb) support compressed sections. | |
186 | bool | |
187 | compress_debug_sections() const | |
188 | { return this->compress_debug_sections_ != NO_COMPRESSION; } | |
189 | ||
190 | bool | |
191 | zlib_compress_debug_sections() const | |
192 | { return this->compress_debug_sections_ == ZLIB_COMPRESSION; } | |
193 | ||
a2b1aa12 ILT |
194 | // --demangle: demangle C++ symbols in our log messages. |
195 | bool | |
196 | demangle() const | |
197 | { return this->demangle_; } | |
198 | ||
a55ce7fe ILT |
199 | // --detect-odr-violations: Whether to search for One Defn Rule violations. |
200 | bool | |
201 | detect_odr_violations() const | |
202 | { return this->detect_odr_violations_; } | |
203 | ||
7da52175 ILT |
204 | // --eh-frame-hdr: Whether to generate an exception frame header. |
205 | bool | |
206 | create_eh_frame_hdr() const | |
207 | { return this->create_eh_frame_hdr_; } | |
208 | ||
41f542e7 ILT |
209 | // --rpath: The runtime search path. |
210 | const Dir_list& | |
211 | rpath() const | |
212 | { return this->rpath_; } | |
213 | ||
15b3cfae ILT |
214 | // --rpath-link: The link time search patch for shared libraries. |
215 | const Dir_list& | |
216 | rpath_link() const | |
217 | { return this->rpath_link_; } | |
218 | ||
92e059d8 ILT |
219 | // --shared: Whether generating a shared object. |
220 | bool | |
221 | is_shared() const | |
222 | { return this->is_shared_; } | |
223 | ||
bae7f79e ILT |
224 | // --static: Whether doing a static link. |
225 | bool | |
226 | is_static() const | |
227 | { return this->is_static_; } | |
228 | ||
0c5e9c22 | 229 | // --stats: Print resource usage statistics. |
e44fcf3b ILT |
230 | bool |
231 | print_stats() const | |
232 | { return this->print_stats_; } | |
233 | ||
ad2d6943 ILT |
234 | // --sysroot: The system root of a cross-linker. |
235 | const std::string& | |
236 | sysroot() const | |
237 | { return this->sysroot_; } | |
238 | ||
09124467 ILT |
239 | // --version-script: The version script to apply if --shared is true. |
240 | const Version_script_info& | |
241 | version_script() const | |
242 | { return *this->script_options_->version_script_info(); } | |
243 | ||
0c5e9c22 ILT |
244 | // -Ttext: The address of the .text section |
245 | uint64_t | |
246 | text_segment_address() const | |
247 | { return this->text_segment_address_; } | |
248 | ||
249 | // Whether -Ttext was used. | |
250 | bool | |
251 | user_set_text_segment_address() const | |
252 | { return this->text_segment_address_ != -1U; } | |
253 | ||
fe9a4c12 ILT |
254 | // --threads: Whether to use threads. |
255 | bool | |
256 | threads() const | |
257 | { return this->threads_; } | |
258 | ||
259 | // --thread-count-initial: Threads to use in initial pass. | |
260 | int | |
261 | thread_count_initial() const | |
262 | { return this->thread_count_initial_; } | |
263 | ||
264 | // --thread-count-middle: Threads to use in middle pass. | |
265 | int | |
266 | thread_count_middle() const | |
267 | { return this->thread_count_middle_; } | |
268 | ||
269 | // --thread-count-final: Threads to use in final pass. | |
270 | int | |
271 | thread_count_final() const | |
272 | { return this->thread_count_final_; } | |
273 | ||
35cdfc9a ILT |
274 | // -z execstack, -z noexecstack |
275 | bool | |
276 | is_execstack_set() const | |
277 | { return this->execstack_ != EXECSTACK_FROM_INPUT; } | |
278 | ||
279 | bool | |
280 | is_stack_executable() const | |
281 | { return this->execstack_ == EXECSTACK_YES; } | |
282 | ||
c7912668 ILT |
283 | // --debug |
284 | unsigned int | |
285 | debug() const | |
286 | { return this->debug_; } | |
287 | ||
e5756efb ILT |
288 | // Return the options which may be set from a linker script. |
289 | Script_options* | |
290 | script_options() | |
291 | { return this->script_options_; } | |
292 | ||
293 | const Script_options* | |
294 | script_options() const | |
295 | { return this->script_options_; } | |
296 | ||
bae7f79e | 297 | private: |
dbe717ef ILT |
298 | // Don't copy this structure. |
299 | General_options(const General_options&); | |
300 | General_options& operator=(const General_options&); | |
301 | ||
bae7f79e ILT |
302 | friend class Command_line; |
303 | friend class options::Command_line_options; | |
304 | ||
9e2dcb77 ILT |
305 | // Which symbols to strip. |
306 | enum Strip | |
307 | { | |
308 | // Don't strip any symbols. | |
309 | STRIP_NONE, | |
310 | // Strip all symbols. | |
311 | STRIP_ALL, | |
312 | // Strip debugging information. | |
02d2ba74 ILT |
313 | STRIP_DEBUG, |
314 | // Strip debugging information that's not used by gdb (at least <= 6.7) | |
315 | STRIP_DEBUG_UNUSED_BY_GDB | |
9e2dcb77 ILT |
316 | }; |
317 | ||
35cdfc9a ILT |
318 | // Whether to mark the stack as executable. |
319 | enum Execstack | |
320 | { | |
321 | // Not set on command line. | |
322 | EXECSTACK_FROM_INPUT, | |
323 | // Mark the stack as executable. | |
324 | EXECSTACK_YES, | |
325 | // Mark the stack as not executable. | |
326 | EXECSTACK_NO | |
327 | }; | |
328 | ||
9a0910c3 ILT |
329 | // What compression method to use |
330 | enum CompressionMethod | |
331 | { | |
332 | NO_COMPRESSION, | |
333 | ZLIB_COMPRESSION, | |
334 | }; | |
335 | ||
d391083d ILT |
336 | void |
337 | set_entry(const char* arg) | |
e5756efb | 338 | { this->script_options_->set_entry(arg, strlen(arg)); } |
d391083d | 339 | |
a6badf5a ILT |
340 | void |
341 | set_export_dynamic() | |
342 | { this->export_dynamic_ = true; } | |
343 | ||
fced7afd ILT |
344 | void |
345 | set_soname(const char* arg) | |
346 | { this->soname_ = arg; } | |
347 | ||
dbe717ef ILT |
348 | void |
349 | set_dynamic_linker(const char* arg) | |
350 | { this->dynamic_linker_ = arg; } | |
351 | ||
bae7f79e ILT |
352 | void |
353 | add_to_search_path(const char* arg) | |
ad2d6943 ILT |
354 | { this->search_path_.push_back(Search_directory(arg, false)); } |
355 | ||
356 | void | |
357 | add_to_search_path_with_sysroot(const char* arg) | |
358 | { this->search_path_.push_back(Search_directory(arg, true)); } | |
bae7f79e | 359 | |
ca3a67a5 ILT |
360 | void |
361 | set_optimization_level(const char* arg) | |
3ae7da37 ILT |
362 | { |
363 | char* endptr; | |
364 | this->optimization_level_ = strtol(arg, &endptr, 0); | |
365 | if (*endptr != '\0' || this->optimization_level_ < 0) | |
366 | gold_fatal(_("invalid optimization level: %s"), arg); | |
367 | } | |
ca3a67a5 | 368 | |
61ba1cf9 ILT |
369 | void |
370 | set_output_file_name(const char* arg) | |
371 | { this->output_file_name_ = arg; } | |
372 | ||
bae7f79e ILT |
373 | void |
374 | set_relocatable() | |
375 | { this->is_relocatable_ = true; } | |
376 | ||
9e2dcb77 ILT |
377 | void |
378 | set_strip_all() | |
379 | { this->strip_ = STRIP_ALL; } | |
380 | ||
46738c9a ILT |
381 | // Note: normalize_options() depends on the fact that this turns off |
382 | // STRIP_ALL if it were already set. | |
9e2dcb77 ILT |
383 | void |
384 | set_strip_debug() | |
385 | { this->strip_ = STRIP_DEBUG; } | |
386 | ||
02d2ba74 ILT |
387 | void |
388 | set_strip_debug_gdb() | |
389 | { this->strip_ = STRIP_DEBUG_UNUSED_BY_GDB; } | |
390 | ||
e2827e5f ILT |
391 | void |
392 | set_allow_shlib_undefined() | |
393 | { this->allow_shlib_undefined_ = true; } | |
394 | ||
395 | void | |
396 | set_no_allow_shlib_undefined() | |
397 | { this->allow_shlib_undefined_ = false; } | |
398 | ||
51b08ebe ILT |
399 | void |
400 | set_symbolic() | |
401 | { this->symbolic_ = true; } | |
402 | ||
bc2c67ff | 403 | void set_compress_debug_sections(const char* arg) |
9a0910c3 ILT |
404 | { |
405 | if (strcmp(arg, "none") == 0) | |
406 | this->compress_debug_sections_ = NO_COMPRESSION; | |
407 | #ifdef HAVE_ZLIB_H | |
408 | else if (strcmp(arg, "zlib") == 0) | |
409 | this->compress_debug_sections_ = ZLIB_COMPRESSION; | |
410 | #endif | |
411 | else | |
bc2c67ff | 412 | gold_fatal(_("unsupported argument to --compress-debug-sections: %s"), |
9a0910c3 ILT |
413 | arg); |
414 | } | |
415 | ||
e5756efb ILT |
416 | void |
417 | define_symbol(const char* arg); | |
418 | ||
a2b1aa12 ILT |
419 | void |
420 | set_demangle() | |
421 | { this->demangle_ = true; } | |
422 | ||
423 | void | |
424 | clear_demangle() | |
425 | { this->demangle_ = false; } | |
426 | ||
a55ce7fe ILT |
427 | void |
428 | set_detect_odr_violations() | |
429 | { this->detect_odr_violations_ = true; } | |
430 | ||
7da52175 | 431 | void |
192f9b85 | 432 | set_create_eh_frame_hdr() |
7da52175 ILT |
433 | { this->create_eh_frame_hdr_ = true; } |
434 | ||
41f542e7 ILT |
435 | void |
436 | add_to_rpath(const char* arg) | |
ad2d6943 | 437 | { this->rpath_.push_back(Search_directory(arg, false)); } |
41f542e7 | 438 | |
15b3cfae ILT |
439 | void |
440 | add_to_rpath_link(const char* arg) | |
ad2d6943 | 441 | { this->rpath_link_.push_back(Search_directory(arg, false)); } |
15b3cfae | 442 | |
92e059d8 ILT |
443 | void |
444 | set_shared() | |
445 | { this->is_shared_ = true; } | |
446 | ||
bae7f79e ILT |
447 | void |
448 | set_static() | |
449 | { this->is_static_ = true; } | |
450 | ||
e44fcf3b ILT |
451 | void |
452 | set_stats() | |
453 | { this->print_stats_ = true; } | |
454 | ||
ad2d6943 ILT |
455 | void |
456 | set_sysroot(const char* arg) | |
457 | { this->sysroot_ = arg; } | |
458 | ||
0c5e9c22 ILT |
459 | void |
460 | set_text_segment_address(const char* arg) | |
461 | { | |
462 | char* endptr; | |
463 | this->text_segment_address_ = strtoull(arg, &endptr, 0); | |
464 | if (*endptr != '\0' | |
465 | || this->text_segment_address_ == -1U) | |
3ae7da37 | 466 | gold_fatal(_("invalid argument to -Ttext: %s"), arg); |
0c5e9c22 ILT |
467 | } |
468 | ||
fe9a4c12 ILT |
469 | int |
470 | parse_thread_count(const char* arg) | |
471 | { | |
472 | char* endptr; | |
3ae7da37 | 473 | const int count = strtol(arg, &endptr, 0); |
fe9a4c12 | 474 | if (*endptr != '\0' || count < 0) |
3ae7da37 | 475 | gold_fatal(_("invalid thread count: %s"), arg); |
fe9a4c12 ILT |
476 | return count; |
477 | } | |
478 | ||
479 | void | |
480 | set_threads() | |
3ae7da37 ILT |
481 | { |
482 | #ifndef ENABLE_THREADS | |
483 | gold_fatal(_("--threads not supported")); | |
484 | #endif | |
485 | this->threads_ = true; | |
486 | } | |
fe9a4c12 ILT |
487 | |
488 | void | |
489 | clear_threads() | |
490 | { this->threads_ = false; } | |
491 | ||
492 | void | |
493 | set_thread_count(const char* arg) | |
494 | { | |
495 | int count = this->parse_thread_count(arg); | |
496 | this->thread_count_initial_ = count; | |
497 | this->thread_count_middle_ = count; | |
498 | this->thread_count_final_ = count; | |
499 | } | |
500 | ||
501 | void | |
502 | set_thread_count_initial(const char* arg) | |
503 | { this->thread_count_initial_ = this->parse_thread_count(arg); } | |
504 | ||
505 | void | |
506 | set_thread_count_middle(const char* arg) | |
460c00b5 | 507 | { this->thread_count_middle_ = this->parse_thread_count(arg); } |
fe9a4c12 ILT |
508 | |
509 | void | |
510 | set_thread_count_final(const char* arg) | |
460c00b5 | 511 | { this->thread_count_final_ = this->parse_thread_count(arg); } |
fe9a4c12 | 512 | |
652ec9bd ILT |
513 | void |
514 | ignore(const char*) | |
515 | { } | |
516 | ||
35cdfc9a ILT |
517 | void |
518 | set_execstack() | |
519 | { this->execstack_ = EXECSTACK_YES; } | |
520 | ||
521 | void | |
522 | set_noexecstack() | |
523 | { this->execstack_ = EXECSTACK_NO; } | |
524 | ||
c7912668 ILT |
525 | void |
526 | set_debug(unsigned int flags) | |
527 | { this->debug_ = flags; } | |
528 | ||
35cdfc9a ILT |
529 | // Handle the -z option. |
530 | void | |
531 | handle_z_option(const char*); | |
532 | ||
c7912668 ILT |
533 | // Handle the --debug option. |
534 | void | |
535 | handle_debug_option(const char*); | |
536 | ||
ad2d6943 ILT |
537 | // Apply any sysroot to the directory lists. |
538 | void | |
539 | add_sysroot(); | |
540 | ||
a6badf5a | 541 | bool export_dynamic_; |
fced7afd | 542 | const char* soname_; |
dbe717ef | 543 | const char* dynamic_linker_; |
bae7f79e | 544 | Dir_list search_path_; |
ca3a67a5 | 545 | int optimization_level_; |
61ba1cf9 | 546 | const char* output_file_name_; |
bae7f79e | 547 | bool is_relocatable_; |
9e2dcb77 | 548 | Strip strip_; |
e2827e5f | 549 | bool allow_shlib_undefined_; |
51b08ebe | 550 | bool symbolic_; |
9a0910c3 | 551 | CompressionMethod compress_debug_sections_; |
a2b1aa12 | 552 | bool demangle_; |
a55ce7fe | 553 | bool detect_odr_violations_; |
7da52175 | 554 | bool create_eh_frame_hdr_; |
41f542e7 | 555 | Dir_list rpath_; |
15b3cfae | 556 | Dir_list rpath_link_; |
92e059d8 | 557 | bool is_shared_; |
bae7f79e | 558 | bool is_static_; |
e44fcf3b | 559 | bool print_stats_; |
ad2d6943 | 560 | std::string sysroot_; |
0c5e9c22 | 561 | uint64_t text_segment_address_; |
fe9a4c12 ILT |
562 | bool threads_; |
563 | int thread_count_initial_; | |
564 | int thread_count_middle_; | |
565 | int thread_count_final_; | |
35cdfc9a | 566 | Execstack execstack_; |
c7912668 | 567 | unsigned int debug_; |
e5756efb ILT |
568 | // Some options can also be set from linker scripts. Those are |
569 | // stored here. | |
570 | Script_options* script_options_; | |
bae7f79e ILT |
571 | }; |
572 | ||
573 | // The current state of the position dependent options. | |
574 | ||
575 | class Position_dependent_options | |
576 | { | |
577 | public: | |
578 | Position_dependent_options(); | |
579 | ||
61611222 ILT |
580 | // -Bdynamic/-Bstatic: Whether we are searching for a static archive |
581 | // -rather than a shared object. | |
bae7f79e | 582 | bool |
dbe717ef | 583 | do_static_search() const |
bae7f79e ILT |
584 | { return this->do_static_search_; } |
585 | ||
dbe717ef ILT |
586 | // --as-needed: Whether to add a DT_NEEDED argument only if the |
587 | // dynamic object is used. | |
588 | bool | |
589 | as_needed() const | |
590 | { return this->as_needed_; } | |
bae7f79e | 591 | |
4973341a ILT |
592 | // --whole-archive: Whether to include the entire contents of an |
593 | // --archive. | |
594 | bool | |
595 | include_whole_archive() const | |
596 | { return this->include_whole_archive_; } | |
597 | ||
bae7f79e ILT |
598 | void |
599 | set_static_search() | |
600 | { this->do_static_search_ = true; } | |
601 | ||
602 | void | |
603 | set_dynamic_search() | |
604 | { this->do_static_search_ = false; } | |
605 | ||
dbe717ef ILT |
606 | void |
607 | set_as_needed() | |
608 | { this->as_needed_ = true; } | |
609 | ||
610 | void | |
611 | clear_as_needed() | |
612 | { this->as_needed_ = false; } | |
613 | ||
4973341a ILT |
614 | void |
615 | set_whole_archive() | |
616 | { this->include_whole_archive_ = true; } | |
617 | ||
618 | void | |
619 | clear_whole_archive() | |
620 | { this->include_whole_archive_ = false; } | |
621 | ||
dbe717ef | 622 | private: |
bae7f79e | 623 | bool do_static_search_; |
dbe717ef | 624 | bool as_needed_; |
4973341a | 625 | bool include_whole_archive_; |
bae7f79e ILT |
626 | }; |
627 | ||
628 | // A single file or library argument from the command line. | |
629 | ||
ead1e424 | 630 | class Input_file_argument |
bae7f79e ILT |
631 | { |
632 | public: | |
51dee2fe ILT |
633 | // name: file name or library name |
634 | // is_lib: true if name is a library name: that is, emits the leading | |
635 | // "lib" and trailing ".so"/".a" from the name | |
636 | // extra_search_path: an extra directory to look for the file, prior | |
637 | // to checking the normal library search path. If this is "", | |
638 | // then no extra directory is added. | |
639 | // options: The position dependent options at this point in the | |
ad2d6943 | 640 | // command line, such as --whole-archive. |
ead1e424 | 641 | Input_file_argument() |
51dee2fe | 642 | : name_(), is_lib_(false), extra_search_path_(""), options_() |
ead1e424 ILT |
643 | { } |
644 | ||
645 | Input_file_argument(const char* name, bool is_lib, | |
51dee2fe | 646 | const char* extra_search_path, |
ead1e424 | 647 | const Position_dependent_options& options) |
51dee2fe ILT |
648 | : name_(name), is_lib_(is_lib), extra_search_path_(extra_search_path), |
649 | options_(options) | |
bae7f79e ILT |
650 | { } |
651 | ||
652 | const char* | |
653 | name() const | |
dbe717ef | 654 | { return this->name_.c_str(); } |
bae7f79e ILT |
655 | |
656 | const Position_dependent_options& | |
657 | options() const | |
658 | { return this->options_; } | |
659 | ||
660 | bool | |
661 | is_lib() const | |
61ba1cf9 | 662 | { return this->is_lib_; } |
bae7f79e | 663 | |
51dee2fe ILT |
664 | const char* |
665 | extra_search_path() const | |
666 | { | |
667 | return (this->extra_search_path_.empty() | |
668 | ? NULL | |
669 | : this->extra_search_path_.c_str()); | |
670 | } | |
671 | ||
672 | // Return whether this file may require a search using the -L | |
673 | // options. | |
674 | bool | |
675 | may_need_search() const | |
676 | { return this->is_lib_ || !this->extra_search_path_.empty(); } | |
677 | ||
bae7f79e | 678 | private: |
dbe717ef ILT |
679 | // We use std::string, not const char*, here for convenience when |
680 | // using script files, so that we do not have to preserve the string | |
681 | // in that case. | |
682 | std::string name_; | |
61ba1cf9 | 683 | bool is_lib_; |
51dee2fe | 684 | std::string extra_search_path_; |
bae7f79e ILT |
685 | Position_dependent_options options_; |
686 | }; | |
687 | ||
ead1e424 ILT |
688 | // A file or library, or a group, from the command line. |
689 | ||
690 | class Input_argument | |
691 | { | |
692 | public: | |
693 | // Create a file or library argument. | |
694 | explicit Input_argument(Input_file_argument file) | |
695 | : is_file_(true), file_(file), group_(NULL) | |
696 | { } | |
697 | ||
698 | // Create a group argument. | |
699 | explicit Input_argument(Input_file_group* group) | |
700 | : is_file_(false), group_(group) | |
701 | { } | |
702 | ||
703 | // Return whether this is a file. | |
704 | bool | |
705 | is_file() const | |
706 | { return this->is_file_; } | |
707 | ||
708 | // Return whether this is a group. | |
709 | bool | |
710 | is_group() const | |
711 | { return !this->is_file_; } | |
712 | ||
713 | // Return the information about the file. | |
714 | const Input_file_argument& | |
715 | file() const | |
716 | { | |
a3ad94ed | 717 | gold_assert(this->is_file_); |
ead1e424 ILT |
718 | return this->file_; |
719 | } | |
720 | ||
721 | // Return the information about the group. | |
722 | const Input_file_group* | |
723 | group() const | |
724 | { | |
a3ad94ed | 725 | gold_assert(!this->is_file_); |
ead1e424 ILT |
726 | return this->group_; |
727 | } | |
728 | ||
729 | Input_file_group* | |
730 | group() | |
731 | { | |
a3ad94ed | 732 | gold_assert(!this->is_file_); |
ead1e424 ILT |
733 | return this->group_; |
734 | } | |
735 | ||
736 | private: | |
737 | bool is_file_; | |
738 | Input_file_argument file_; | |
739 | Input_file_group* group_; | |
740 | }; | |
741 | ||
742 | // A group from the command line. This is a set of arguments within | |
743 | // --start-group ... --end-group. | |
744 | ||
745 | class Input_file_group | |
92e059d8 | 746 | { |
ead1e424 ILT |
747 | public: |
748 | typedef std::vector<Input_argument> Files; | |
749 | typedef Files::const_iterator const_iterator; | |
750 | ||
751 | Input_file_group() | |
752 | : files_() | |
753 | { } | |
754 | ||
755 | // Add a file to the end of the group. | |
756 | void | |
757 | add_file(const Input_file_argument& arg) | |
758 | { this->files_.push_back(Input_argument(arg)); } | |
759 | ||
760 | // Iterators to iterate over the group contents. | |
761 | ||
762 | const_iterator | |
763 | begin() const | |
764 | { return this->files_.begin(); } | |
765 | ||
766 | const_iterator | |
767 | end() const | |
768 | { return this->files_.end(); } | |
769 | ||
770 | private: | |
771 | Files files_; | |
92e059d8 ILT |
772 | }; |
773 | ||
dbe717ef ILT |
774 | // A list of files from the command line or a script. |
775 | ||
776 | class Input_arguments | |
777 | { | |
778 | public: | |
779 | typedef std::vector<Input_argument> Input_argument_list; | |
780 | typedef Input_argument_list::const_iterator const_iterator; | |
781 | ||
782 | Input_arguments() | |
783 | : input_argument_list_(), in_group_(false) | |
784 | { } | |
785 | ||
786 | // Add a file. | |
787 | void | |
788 | add_file(const Input_file_argument& arg); | |
789 | ||
790 | // Start a group (the --start-group option). | |
791 | void | |
792 | start_group(); | |
793 | ||
794 | // End a group (the --end-group option). | |
795 | void | |
796 | end_group(); | |
797 | ||
798 | // Return whether we are currently in a group. | |
799 | bool | |
800 | in_group() const | |
801 | { return this->in_group_; } | |
802 | ||
fe9a4c12 ILT |
803 | // The number of entries in the list. |
804 | int | |
805 | size() const | |
806 | { return this->input_argument_list_.size(); } | |
807 | ||
dbe717ef ILT |
808 | // Iterators to iterate over the list of input files. |
809 | ||
810 | const_iterator | |
811 | begin() const | |
812 | { return this->input_argument_list_.begin(); } | |
813 | ||
814 | const_iterator | |
815 | end() const | |
816 | { return this->input_argument_list_.end(); } | |
817 | ||
818 | // Return whether the list is empty. | |
819 | bool | |
820 | empty() const | |
821 | { return this->input_argument_list_.empty(); } | |
822 | ||
823 | private: | |
824 | Input_argument_list input_argument_list_; | |
825 | bool in_group_; | |
826 | }; | |
827 | ||
bae7f79e ILT |
828 | // All the information read from the command line. |
829 | ||
830 | class Command_line | |
831 | { | |
832 | public: | |
ead1e424 ILT |
833 | typedef Input_arguments::const_iterator const_iterator; |
834 | ||
e5756efb | 835 | Command_line(Script_options*); |
bae7f79e ILT |
836 | |
837 | // Process the command line options. This will exit with an | |
838 | // appropriate error message if an unrecognized option is seen. | |
839 | void | |
840 | process(int argc, char** argv); | |
841 | ||
a0451b38 ILT |
842 | // Process one command-line option. This takes the index of argv to |
843 | // process, and returns the index for the next option. | |
844 | int | |
845 | process_one_option(int argc, char** argv, int i, bool* no_more_options); | |
846 | ||
61ba1cf9 ILT |
847 | // Handle a -l option. |
848 | int | |
3c2fafa5 | 849 | process_l_option(int, char**, char*, bool); |
61ba1cf9 | 850 | |
ead1e424 ILT |
851 | // Handle a --start-group option. |
852 | void | |
853 | start_group(const char* arg); | |
854 | ||
855 | // Handle a --end-group option. | |
856 | void | |
857 | end_group(const char* arg); | |
858 | ||
3c2fafa5 ILT |
859 | // Get an option argument--a helper function for special processing. |
860 | const char* | |
861 | get_special_argument(const char* longname, int argc, char** argv, | |
862 | const char* arg, bool long_option, | |
863 | int *pret); | |
864 | ||
61ba1cf9 | 865 | // Get the general options. |
bae7f79e ILT |
866 | const General_options& |
867 | options() const | |
868 | { return this->options_; } | |
869 | ||
3c2fafa5 ILT |
870 | // Get the position dependent options. |
871 | const Position_dependent_options& | |
872 | position_dependent_options() const | |
873 | { return this->position_options_; } | |
874 | ||
e5756efb ILT |
875 | // Get the options which may be set from a linker script. |
876 | Script_options* | |
877 | script_options() | |
878 | { return this->options_.script_options(); } | |
879 | ||
880 | const Script_options* | |
881 | script_options() const | |
882 | { return this->options_.script_options(); } | |
883 | ||
fe9a4c12 ILT |
884 | // The number of input files. |
885 | int | |
886 | number_of_input_files() const | |
887 | { return this->inputs_.size(); } | |
888 | ||
ead1e424 ILT |
889 | // Iterators to iterate over the list of input files. |
890 | ||
891 | const_iterator | |
892 | begin() const | |
893 | { return this->inputs_.begin(); } | |
894 | ||
895 | const_iterator | |
896 | end() const | |
897 | { return this->inputs_.end(); } | |
bae7f79e ILT |
898 | |
899 | private: | |
ead1e424 ILT |
900 | Command_line(const Command_line&); |
901 | Command_line& operator=(const Command_line&); | |
902 | ||
903 | // Report usage error. | |
904 | void | |
905 | usage() ATTRIBUTE_NORETURN; | |
906 | void | |
907 | usage(const char* msg, const char* opt) ATTRIBUTE_NORETURN; | |
908 | void | |
909 | usage(const char* msg, char opt) ATTRIBUTE_NORETURN; | |
910 | ||
911 | // Apply a command line option. | |
912 | void | |
913 | apply_option(const gold::options::One_option&, const char*); | |
914 | ||
915 | // Add a file. | |
916 | void | |
917 | add_file(const char* name, bool is_lib); | |
bae7f79e | 918 | |
46738c9a ILT |
919 | // Examine the result of processing the command-line, and verify |
920 | // the flags do not contradict each other or are otherwise illegal. | |
921 | void | |
922 | normalize_options(); | |
923 | ||
bae7f79e ILT |
924 | General_options options_; |
925 | Position_dependent_options position_options_; | |
ead1e424 | 926 | Input_arguments inputs_; |
bae7f79e ILT |
927 | }; |
928 | ||
929 | } // End namespace gold. | |
930 | ||
931 | #endif // !defined(GOLD_OPTIONS_H) |