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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 | |
0daa6f62 | 40 | #include "elfcpp.h" |
3c2fafa5 ILT |
41 | #include "script.h" |
42 | ||
bae7f79e ILT |
43 | namespace gold |
44 | { | |
45 | ||
46 | class Command_line; | |
ead1e424 | 47 | class Input_file_group; |
3c2fafa5 | 48 | class Position_dependent_options; |
0daa6f62 | 49 | class Target; |
bae7f79e | 50 | |
c7912668 ILT |
51 | namespace options |
52 | { | |
bae7f79e ILT |
53 | |
54 | class Command_line_options; | |
55 | struct One_option; | |
35cdfc9a | 56 | struct One_z_option; |
c7912668 | 57 | struct One_debug_option; |
bae7f79e ILT |
58 | |
59 | } // End namespace gold::options. | |
60 | ||
ad2d6943 ILT |
61 | // A directory to search. For each directory we record whether it is |
62 | // in the sysroot. We need to know this so that, if a linker script | |
63 | // is found within the sysroot, we will apply the sysroot to any files | |
64 | // named by that script. | |
65 | ||
66 | class Search_directory | |
67 | { | |
68 | public: | |
69 | // We need a default constructor because we put this in a | |
70 | // std::vector. | |
71 | Search_directory() | |
72 | : name_(NULL), put_in_sysroot_(false), is_in_sysroot_(false) | |
73 | { } | |
74 | ||
75 | // This is the usual constructor. | |
76 | Search_directory(const char* name, bool put_in_sysroot) | |
77 | : name_(name), put_in_sysroot_(put_in_sysroot), is_in_sysroot_(false) | |
15893b88 ILT |
78 | { |
79 | if (this->name_.empty()) | |
80 | this->name_ = "."; | |
81 | } | |
ad2d6943 ILT |
82 | |
83 | // This is called if we have a sysroot. The sysroot is prefixed to | |
84 | // any entries for which put_in_sysroot_ is true. is_in_sysroot_ is | |
85 | // set to true for any enries which are in the sysroot (this will | |
86 | // naturally include any entries for which put_in_sysroot_ is true). | |
87 | // SYSROOT is the sysroot, CANONICAL_SYSROOT is the result of | |
88 | // passing SYSROOT to lrealpath. | |
89 | void | |
90 | add_sysroot(const char* sysroot, const char* canonical_sysroot); | |
91 | ||
92 | // Get the directory name. | |
93 | const std::string& | |
94 | name() const | |
95 | { return this->name_; } | |
96 | ||
97 | // Return whether this directory is in the sysroot. | |
98 | bool | |
99 | is_in_sysroot() const | |
100 | { return this->is_in_sysroot_; } | |
101 | ||
102 | private: | |
103 | std::string name_; | |
104 | bool put_in_sysroot_; | |
105 | bool is_in_sysroot_; | |
106 | }; | |
107 | ||
bae7f79e ILT |
108 | // The position independent options which apply to the whole link. |
109 | // There are a lot of them. | |
110 | ||
111 | class General_options | |
112 | { | |
113 | public: | |
bc644c6c ILT |
114 | enum Object_format |
115 | { | |
116 | // Ordinary ELF. | |
117 | OBJECT_FORMAT_ELF, | |
118 | // Straight binary format. | |
119 | OBJECT_FORMAT_BINARY | |
120 | }; | |
121 | ||
e5756efb | 122 | General_options(Script_options*); |
bae7f79e | 123 | |
d391083d ILT |
124 | // -e: set entry address. |
125 | const char* | |
126 | entry() const | |
e5756efb | 127 | { return this->script_options_->entry(); } |
d391083d | 128 | |
a6badf5a ILT |
129 | // -E: export dynamic symbols. |
130 | bool | |
131 | export_dynamic() const | |
132 | { return this->export_dynamic_; } | |
133 | ||
fced7afd ILT |
134 | // -h: shared library name. |
135 | const char* | |
136 | soname() const | |
137 | { return this->soname_; } | |
138 | ||
dbe717ef ILT |
139 | // -I: dynamic linker name. |
140 | const char* | |
141 | dynamic_linker() const | |
142 | { return this->dynamic_linker_; } | |
143 | ||
bae7f79e | 144 | // -L: Library search path. |
ad2d6943 | 145 | typedef std::vector<Search_directory> Dir_list; |
bae7f79e ILT |
146 | |
147 | const Dir_list& | |
148 | search_path() const | |
149 | { return this->search_path_; } | |
150 | ||
ca3a67a5 ILT |
151 | // -O: optimization level (0: don't try to optimize output size). |
152 | int | |
153 | optimization_level() const | |
154 | { return this->optimization_level_; } | |
155 | ||
61ba1cf9 ILT |
156 | // -o: Output file name. |
157 | const char* | |
158 | output_file_name() const | |
159 | { return this->output_file_name_; } | |
160 | ||
516cb3d0 | 161 | // --oformat: Output format. |
bc644c6c | 162 | Object_format |
516cb3d0 ILT |
163 | output_format() const |
164 | { return this->output_format_; } | |
165 | ||
0daa6f62 ILT |
166 | // Return the default target. |
167 | Target* | |
168 | default_target() const; | |
169 | ||
bae7f79e ILT |
170 | // -r: Whether we are doing a relocatable link. |
171 | bool | |
172 | is_relocatable() const | |
173 | { return this->is_relocatable_; } | |
174 | ||
9e2dcb77 ILT |
175 | // -s: Strip all symbols. |
176 | bool | |
177 | strip_all() const | |
178 | { return this->strip_ == STRIP_ALL; } | |
179 | ||
180 | // -S: Strip debugging information. | |
181 | bool | |
182 | strip_debug() const | |
183 | { return this->strip_ == STRIP_ALL || this->strip_ == STRIP_DEBUG; } | |
184 | ||
9a0910c3 ILT |
185 | // --strip-debug-gdb: strip only debugging information that's not |
186 | // used by gdb (at least, for gdb versions <= 6.7). | |
02d2ba74 ILT |
187 | bool |
188 | strip_debug_gdb() const | |
189 | { return this->strip_debug() || this->strip_ == STRIP_DEBUG_UNUSED_BY_GDB; } | |
190 | ||
e2827e5f ILT |
191 | // --allow-shlib-undefined: do not warn about unresolved symbols in |
192 | // --shared libraries. | |
193 | bool | |
194 | allow_shlib_undefined() const | |
195 | { return this->allow_shlib_undefined_; } | |
196 | ||
51b08ebe ILT |
197 | // -Bsymbolic: bind defined symbols locally. |
198 | bool | |
199 | symbolic() const | |
200 | { return this->symbolic_; } | |
201 | ||
9a0910c3 ILT |
202 | // --compress-debug-sections: compress .debug_* sections in the |
203 | // output file using the given compression method. This is useful | |
204 | // when the tools (such as gdb) support compressed sections. | |
205 | bool | |
206 | compress_debug_sections() const | |
207 | { return this->compress_debug_sections_ != NO_COMPRESSION; } | |
208 | ||
209 | bool | |
210 | zlib_compress_debug_sections() const | |
211 | { return this->compress_debug_sections_ == ZLIB_COMPRESSION; } | |
212 | ||
a2b1aa12 ILT |
213 | // --demangle: demangle C++ symbols in our log messages. |
214 | bool | |
215 | demangle() const | |
216 | { return this->demangle_; } | |
217 | ||
a55ce7fe ILT |
218 | // --detect-odr-violations: Whether to search for One Defn Rule violations. |
219 | bool | |
220 | detect_odr_violations() const | |
221 | { return this->detect_odr_violations_; } | |
222 | ||
7da52175 ILT |
223 | // --eh-frame-hdr: Whether to generate an exception frame header. |
224 | bool | |
225 | create_eh_frame_hdr() const | |
226 | { return this->create_eh_frame_hdr_; } | |
227 | ||
41f542e7 ILT |
228 | // --rpath: The runtime search path. |
229 | const Dir_list& | |
230 | rpath() const | |
231 | { return this->rpath_; } | |
232 | ||
15b3cfae ILT |
233 | // --rpath-link: The link time search patch for shared libraries. |
234 | const Dir_list& | |
235 | rpath_link() const | |
236 | { return this->rpath_link_; } | |
237 | ||
92e059d8 ILT |
238 | // --shared: Whether generating a shared object. |
239 | bool | |
240 | is_shared() const | |
241 | { return this->is_shared_; } | |
242 | ||
bae7f79e ILT |
243 | // --static: Whether doing a static link. |
244 | bool | |
245 | is_static() const | |
246 | { return this->is_static_; } | |
247 | ||
0c5e9c22 | 248 | // --stats: Print resource usage statistics. |
e44fcf3b ILT |
249 | bool |
250 | print_stats() const | |
251 | { return this->print_stats_; } | |
252 | ||
ad2d6943 ILT |
253 | // --sysroot: The system root of a cross-linker. |
254 | const std::string& | |
255 | sysroot() const | |
256 | { return this->sysroot_; } | |
257 | ||
09124467 ILT |
258 | // --version-script: The version script to apply if --shared is true. |
259 | const Version_script_info& | |
260 | version_script() const | |
261 | { return *this->script_options_->version_script_info(); } | |
262 | ||
0c5e9c22 ILT |
263 | // -Ttext: The address of the .text section |
264 | uint64_t | |
265 | text_segment_address() const | |
266 | { return this->text_segment_address_; } | |
267 | ||
268 | // Whether -Ttext was used. | |
269 | bool | |
270 | user_set_text_segment_address() const | |
271 | { return this->text_segment_address_ != -1U; } | |
272 | ||
fe9a4c12 ILT |
273 | // --threads: Whether to use threads. |
274 | bool | |
275 | threads() const | |
276 | { return this->threads_; } | |
277 | ||
278 | // --thread-count-initial: Threads to use in initial pass. | |
279 | int | |
280 | thread_count_initial() const | |
281 | { return this->thread_count_initial_; } | |
282 | ||
283 | // --thread-count-middle: Threads to use in middle pass. | |
284 | int | |
285 | thread_count_middle() const | |
286 | { return this->thread_count_middle_; } | |
287 | ||
288 | // --thread-count-final: Threads to use in final pass. | |
289 | int | |
290 | thread_count_final() const | |
291 | { return this->thread_count_final_; } | |
292 | ||
35cdfc9a ILT |
293 | // -z execstack, -z noexecstack |
294 | bool | |
295 | is_execstack_set() const | |
296 | { return this->execstack_ != EXECSTACK_FROM_INPUT; } | |
297 | ||
298 | bool | |
299 | is_stack_executable() const | |
300 | { return this->execstack_ == EXECSTACK_YES; } | |
301 | ||
c7912668 ILT |
302 | // --debug |
303 | unsigned int | |
304 | debug() const | |
305 | { return this->debug_; } | |
306 | ||
e5756efb ILT |
307 | // Return the options which may be set from a linker script. |
308 | Script_options* | |
309 | script_options() | |
310 | { return this->script_options_; } | |
311 | ||
312 | const Script_options* | |
313 | script_options() const | |
314 | { return this->script_options_; } | |
315 | ||
bae7f79e | 316 | private: |
dbe717ef ILT |
317 | // Don't copy this structure. |
318 | General_options(const General_options&); | |
319 | General_options& operator=(const General_options&); | |
320 | ||
bae7f79e ILT |
321 | friend class Command_line; |
322 | friend class options::Command_line_options; | |
323 | ||
9e2dcb77 ILT |
324 | // Which symbols to strip. |
325 | enum Strip | |
326 | { | |
327 | // Don't strip any symbols. | |
328 | STRIP_NONE, | |
329 | // Strip all symbols. | |
330 | STRIP_ALL, | |
331 | // Strip debugging information. | |
02d2ba74 ILT |
332 | STRIP_DEBUG, |
333 | // Strip debugging information that's not used by gdb (at least <= 6.7) | |
334 | STRIP_DEBUG_UNUSED_BY_GDB | |
9e2dcb77 ILT |
335 | }; |
336 | ||
35cdfc9a ILT |
337 | // Whether to mark the stack as executable. |
338 | enum Execstack | |
339 | { | |
340 | // Not set on command line. | |
341 | EXECSTACK_FROM_INPUT, | |
342 | // Mark the stack as executable. | |
343 | EXECSTACK_YES, | |
344 | // Mark the stack as not executable. | |
345 | EXECSTACK_NO | |
346 | }; | |
347 | ||
9a0910c3 ILT |
348 | // What compression method to use |
349 | enum CompressionMethod | |
350 | { | |
351 | NO_COMPRESSION, | |
352 | ZLIB_COMPRESSION, | |
353 | }; | |
354 | ||
d391083d ILT |
355 | void |
356 | set_entry(const char* arg) | |
e5756efb | 357 | { this->script_options_->set_entry(arg, strlen(arg)); } |
d391083d | 358 | |
a6badf5a ILT |
359 | void |
360 | set_export_dynamic() | |
361 | { this->export_dynamic_ = true; } | |
362 | ||
fced7afd ILT |
363 | void |
364 | set_soname(const char* arg) | |
365 | { this->soname_ = arg; } | |
366 | ||
dbe717ef ILT |
367 | void |
368 | set_dynamic_linker(const char* arg) | |
369 | { this->dynamic_linker_ = arg; } | |
370 | ||
bae7f79e ILT |
371 | void |
372 | add_to_search_path(const char* arg) | |
ad2d6943 ILT |
373 | { this->search_path_.push_back(Search_directory(arg, false)); } |
374 | ||
375 | void | |
376 | add_to_search_path_with_sysroot(const char* arg) | |
377 | { this->search_path_.push_back(Search_directory(arg, true)); } | |
bae7f79e | 378 | |
ca3a67a5 ILT |
379 | void |
380 | set_optimization_level(const char* arg) | |
3ae7da37 ILT |
381 | { |
382 | char* endptr; | |
383 | this->optimization_level_ = strtol(arg, &endptr, 0); | |
384 | if (*endptr != '\0' || this->optimization_level_ < 0) | |
385 | gold_fatal(_("invalid optimization level: %s"), arg); | |
386 | } | |
ca3a67a5 | 387 | |
61ba1cf9 ILT |
388 | void |
389 | set_output_file_name(const char* arg) | |
390 | { this->output_file_name_ = arg; } | |
391 | ||
516cb3d0 ILT |
392 | void |
393 | set_output_format(const char*); | |
394 | ||
bae7f79e ILT |
395 | void |
396 | set_relocatable() | |
397 | { this->is_relocatable_ = true; } | |
398 | ||
9e2dcb77 ILT |
399 | void |
400 | set_strip_all() | |
401 | { this->strip_ = STRIP_ALL; } | |
402 | ||
46738c9a ILT |
403 | // Note: normalize_options() depends on the fact that this turns off |
404 | // STRIP_ALL if it were already set. | |
9e2dcb77 ILT |
405 | void |
406 | set_strip_debug() | |
407 | { this->strip_ = STRIP_DEBUG; } | |
408 | ||
02d2ba74 ILT |
409 | void |
410 | set_strip_debug_gdb() | |
411 | { this->strip_ = STRIP_DEBUG_UNUSED_BY_GDB; } | |
412 | ||
e2827e5f ILT |
413 | void |
414 | set_allow_shlib_undefined() | |
415 | { this->allow_shlib_undefined_ = true; } | |
416 | ||
417 | void | |
418 | set_no_allow_shlib_undefined() | |
419 | { this->allow_shlib_undefined_ = false; } | |
420 | ||
51b08ebe ILT |
421 | void |
422 | set_symbolic() | |
423 | { this->symbolic_ = true; } | |
424 | ||
bc2c67ff | 425 | void set_compress_debug_sections(const char* arg) |
9a0910c3 ILT |
426 | { |
427 | if (strcmp(arg, "none") == 0) | |
428 | this->compress_debug_sections_ = NO_COMPRESSION; | |
429 | #ifdef HAVE_ZLIB_H | |
430 | else if (strcmp(arg, "zlib") == 0) | |
431 | this->compress_debug_sections_ = ZLIB_COMPRESSION; | |
432 | #endif | |
433 | else | |
bc2c67ff | 434 | gold_fatal(_("unsupported argument to --compress-debug-sections: %s"), |
9a0910c3 ILT |
435 | arg); |
436 | } | |
437 | ||
e5756efb ILT |
438 | void |
439 | define_symbol(const char* arg); | |
440 | ||
a2b1aa12 ILT |
441 | void |
442 | set_demangle() | |
443 | { this->demangle_ = true; } | |
444 | ||
445 | void | |
446 | clear_demangle() | |
447 | { this->demangle_ = false; } | |
448 | ||
a55ce7fe ILT |
449 | void |
450 | set_detect_odr_violations() | |
451 | { this->detect_odr_violations_ = true; } | |
452 | ||
7da52175 | 453 | void |
192f9b85 | 454 | set_create_eh_frame_hdr() |
7da52175 ILT |
455 | { this->create_eh_frame_hdr_ = true; } |
456 | ||
41f542e7 ILT |
457 | void |
458 | add_to_rpath(const char* arg) | |
ad2d6943 | 459 | { this->rpath_.push_back(Search_directory(arg, false)); } |
41f542e7 | 460 | |
15b3cfae ILT |
461 | void |
462 | add_to_rpath_link(const char* arg) | |
ad2d6943 | 463 | { this->rpath_link_.push_back(Search_directory(arg, false)); } |
15b3cfae | 464 | |
92e059d8 ILT |
465 | void |
466 | set_shared() | |
467 | { this->is_shared_ = true; } | |
468 | ||
bae7f79e ILT |
469 | void |
470 | set_static() | |
471 | { this->is_static_ = true; } | |
472 | ||
e44fcf3b ILT |
473 | void |
474 | set_stats() | |
475 | { this->print_stats_ = true; } | |
476 | ||
ad2d6943 ILT |
477 | void |
478 | set_sysroot(const char* arg) | |
479 | { this->sysroot_ = arg; } | |
480 | ||
0c5e9c22 ILT |
481 | void |
482 | set_text_segment_address(const char* arg) | |
483 | { | |
484 | char* endptr; | |
485 | this->text_segment_address_ = strtoull(arg, &endptr, 0); | |
486 | if (*endptr != '\0' | |
487 | || this->text_segment_address_ == -1U) | |
3ae7da37 | 488 | gold_fatal(_("invalid argument to -Ttext: %s"), arg); |
0c5e9c22 ILT |
489 | } |
490 | ||
fe9a4c12 ILT |
491 | int |
492 | parse_thread_count(const char* arg) | |
493 | { | |
494 | char* endptr; | |
3ae7da37 | 495 | const int count = strtol(arg, &endptr, 0); |
fe9a4c12 | 496 | if (*endptr != '\0' || count < 0) |
3ae7da37 | 497 | gold_fatal(_("invalid thread count: %s"), arg); |
fe9a4c12 ILT |
498 | return count; |
499 | } | |
500 | ||
501 | void | |
502 | set_threads() | |
3ae7da37 ILT |
503 | { |
504 | #ifndef ENABLE_THREADS | |
505 | gold_fatal(_("--threads not supported")); | |
506 | #endif | |
507 | this->threads_ = true; | |
508 | } | |
fe9a4c12 ILT |
509 | |
510 | void | |
511 | clear_threads() | |
512 | { this->threads_ = false; } | |
513 | ||
514 | void | |
515 | set_thread_count(const char* arg) | |
516 | { | |
517 | int count = this->parse_thread_count(arg); | |
518 | this->thread_count_initial_ = count; | |
519 | this->thread_count_middle_ = count; | |
520 | this->thread_count_final_ = count; | |
521 | } | |
522 | ||
523 | void | |
524 | set_thread_count_initial(const char* arg) | |
525 | { this->thread_count_initial_ = this->parse_thread_count(arg); } | |
526 | ||
527 | void | |
528 | set_thread_count_middle(const char* arg) | |
460c00b5 | 529 | { this->thread_count_middle_ = this->parse_thread_count(arg); } |
fe9a4c12 ILT |
530 | |
531 | void | |
532 | set_thread_count_final(const char* arg) | |
460c00b5 | 533 | { this->thread_count_final_ = this->parse_thread_count(arg); } |
fe9a4c12 | 534 | |
652ec9bd ILT |
535 | void |
536 | ignore(const char*) | |
537 | { } | |
538 | ||
35cdfc9a ILT |
539 | void |
540 | set_execstack() | |
541 | { this->execstack_ = EXECSTACK_YES; } | |
542 | ||
543 | void | |
544 | set_noexecstack() | |
545 | { this->execstack_ = EXECSTACK_NO; } | |
546 | ||
c7912668 ILT |
547 | void |
548 | set_debug(unsigned int flags) | |
549 | { this->debug_ = flags; } | |
550 | ||
35cdfc9a ILT |
551 | // Handle the -z option. |
552 | void | |
553 | handle_z_option(const char*); | |
554 | ||
c7912668 ILT |
555 | // Handle the --debug option. |
556 | void | |
557 | handle_debug_option(const char*); | |
558 | ||
ad2d6943 ILT |
559 | // Apply any sysroot to the directory lists. |
560 | void | |
561 | add_sysroot(); | |
562 | ||
a6badf5a | 563 | bool export_dynamic_; |
fced7afd | 564 | const char* soname_; |
dbe717ef | 565 | const char* dynamic_linker_; |
bae7f79e | 566 | Dir_list search_path_; |
ca3a67a5 | 567 | int optimization_level_; |
61ba1cf9 | 568 | const char* output_file_name_; |
bc644c6c | 569 | Object_format output_format_; |
0daa6f62 | 570 | const char* output_format_string_; |
bae7f79e | 571 | bool is_relocatable_; |
9e2dcb77 | 572 | Strip strip_; |
e2827e5f | 573 | bool allow_shlib_undefined_; |
51b08ebe | 574 | bool symbolic_; |
9a0910c3 | 575 | CompressionMethod compress_debug_sections_; |
a2b1aa12 | 576 | bool demangle_; |
a55ce7fe | 577 | bool detect_odr_violations_; |
7da52175 | 578 | bool create_eh_frame_hdr_; |
41f542e7 | 579 | Dir_list rpath_; |
15b3cfae | 580 | Dir_list rpath_link_; |
92e059d8 | 581 | bool is_shared_; |
bae7f79e | 582 | bool is_static_; |
e44fcf3b | 583 | bool print_stats_; |
ad2d6943 | 584 | std::string sysroot_; |
0c5e9c22 | 585 | uint64_t text_segment_address_; |
fe9a4c12 ILT |
586 | bool threads_; |
587 | int thread_count_initial_; | |
588 | int thread_count_middle_; | |
589 | int thread_count_final_; | |
35cdfc9a | 590 | Execstack execstack_; |
c7912668 | 591 | unsigned int debug_; |
e5756efb ILT |
592 | // Some options can also be set from linker scripts. Those are |
593 | // stored here. | |
594 | Script_options* script_options_; | |
bae7f79e ILT |
595 | }; |
596 | ||
597 | // The current state of the position dependent options. | |
598 | ||
599 | class Position_dependent_options | |
600 | { | |
601 | public: | |
bc644c6c ILT |
602 | typedef General_options::Object_format Object_format; |
603 | ||
bae7f79e ILT |
604 | Position_dependent_options(); |
605 | ||
61611222 ILT |
606 | // -Bdynamic/-Bstatic: Whether we are searching for a static archive |
607 | // -rather than a shared object. | |
bae7f79e | 608 | bool |
dbe717ef | 609 | do_static_search() const |
bae7f79e ILT |
610 | { return this->do_static_search_; } |
611 | ||
dbe717ef ILT |
612 | // --as-needed: Whether to add a DT_NEEDED argument only if the |
613 | // dynamic object is used. | |
614 | bool | |
615 | as_needed() const | |
616 | { return this->as_needed_; } | |
bae7f79e | 617 | |
4973341a ILT |
618 | // --whole-archive: Whether to include the entire contents of an |
619 | // --archive. | |
620 | bool | |
621 | include_whole_archive() const | |
622 | { return this->include_whole_archive_; } | |
623 | ||
bc644c6c ILT |
624 | // --format: The format of the input file. |
625 | Object_format | |
626 | input_format() const | |
627 | { return this->input_format_; } | |
628 | ||
bae7f79e ILT |
629 | void |
630 | set_static_search() | |
631 | { this->do_static_search_ = true; } | |
632 | ||
633 | void | |
634 | set_dynamic_search() | |
635 | { this->do_static_search_ = false; } | |
636 | ||
dbe717ef ILT |
637 | void |
638 | set_as_needed() | |
639 | { this->as_needed_ = true; } | |
640 | ||
641 | void | |
642 | clear_as_needed() | |
643 | { this->as_needed_ = false; } | |
644 | ||
4973341a ILT |
645 | void |
646 | set_whole_archive() | |
647 | { this->include_whole_archive_ = true; } | |
648 | ||
649 | void | |
650 | clear_whole_archive() | |
651 | { this->include_whole_archive_ = false; } | |
652 | ||
bc644c6c ILT |
653 | void |
654 | set_input_format(const char*); | |
655 | ||
dbe717ef | 656 | private: |
bae7f79e | 657 | bool do_static_search_; |
dbe717ef | 658 | bool as_needed_; |
4973341a | 659 | bool include_whole_archive_; |
bc644c6c | 660 | Object_format input_format_; |
bae7f79e ILT |
661 | }; |
662 | ||
663 | // A single file or library argument from the command line. | |
664 | ||
ead1e424 | 665 | class Input_file_argument |
bae7f79e ILT |
666 | { |
667 | public: | |
51dee2fe ILT |
668 | // name: file name or library name |
669 | // is_lib: true if name is a library name: that is, emits the leading | |
670 | // "lib" and trailing ".so"/".a" from the name | |
671 | // extra_search_path: an extra directory to look for the file, prior | |
672 | // to checking the normal library search path. If this is "", | |
673 | // then no extra directory is added. | |
88dd47ac | 674 | // just_symbols: whether this file only defines symbols. |
51dee2fe | 675 | // options: The position dependent options at this point in the |
ad2d6943 | 676 | // command line, such as --whole-archive. |
ead1e424 | 677 | Input_file_argument() |
88dd47ac ILT |
678 | : name_(), is_lib_(false), extra_search_path_(""), just_symbols_(false), |
679 | options_() | |
ead1e424 ILT |
680 | { } |
681 | ||
682 | Input_file_argument(const char* name, bool is_lib, | |
51dee2fe | 683 | const char* extra_search_path, |
88dd47ac | 684 | bool just_symbols, |
ead1e424 | 685 | const Position_dependent_options& options) |
51dee2fe | 686 | : name_(name), is_lib_(is_lib), extra_search_path_(extra_search_path), |
88dd47ac | 687 | just_symbols_(just_symbols), options_(options) |
bae7f79e ILT |
688 | { } |
689 | ||
690 | const char* | |
691 | name() const | |
dbe717ef | 692 | { return this->name_.c_str(); } |
bae7f79e ILT |
693 | |
694 | const Position_dependent_options& | |
695 | options() const | |
696 | { return this->options_; } | |
697 | ||
698 | bool | |
699 | is_lib() const | |
61ba1cf9 | 700 | { return this->is_lib_; } |
bae7f79e | 701 | |
51dee2fe ILT |
702 | const char* |
703 | extra_search_path() const | |
704 | { | |
705 | return (this->extra_search_path_.empty() | |
706 | ? NULL | |
707 | : this->extra_search_path_.c_str()); | |
708 | } | |
709 | ||
88dd47ac ILT |
710 | // Return whether we should only read symbols from this file. |
711 | bool | |
712 | just_symbols() const | |
713 | { return this->just_symbols_; } | |
714 | ||
51dee2fe ILT |
715 | // Return whether this file may require a search using the -L |
716 | // options. | |
717 | bool | |
718 | may_need_search() const | |
719 | { return this->is_lib_ || !this->extra_search_path_.empty(); } | |
720 | ||
bae7f79e | 721 | private: |
dbe717ef ILT |
722 | // We use std::string, not const char*, here for convenience when |
723 | // using script files, so that we do not have to preserve the string | |
724 | // in that case. | |
725 | std::string name_; | |
61ba1cf9 | 726 | bool is_lib_; |
51dee2fe | 727 | std::string extra_search_path_; |
88dd47ac | 728 | bool just_symbols_; |
bae7f79e ILT |
729 | Position_dependent_options options_; |
730 | }; | |
731 | ||
ead1e424 ILT |
732 | // A file or library, or a group, from the command line. |
733 | ||
734 | class Input_argument | |
735 | { | |
736 | public: | |
737 | // Create a file or library argument. | |
738 | explicit Input_argument(Input_file_argument file) | |
739 | : is_file_(true), file_(file), group_(NULL) | |
740 | { } | |
741 | ||
742 | // Create a group argument. | |
743 | explicit Input_argument(Input_file_group* group) | |
744 | : is_file_(false), group_(group) | |
745 | { } | |
746 | ||
747 | // Return whether this is a file. | |
748 | bool | |
749 | is_file() const | |
750 | { return this->is_file_; } | |
751 | ||
752 | // Return whether this is a group. | |
753 | bool | |
754 | is_group() const | |
755 | { return !this->is_file_; } | |
756 | ||
757 | // Return the information about the file. | |
758 | const Input_file_argument& | |
759 | file() const | |
760 | { | |
a3ad94ed | 761 | gold_assert(this->is_file_); |
ead1e424 ILT |
762 | return this->file_; |
763 | } | |
764 | ||
765 | // Return the information about the group. | |
766 | const Input_file_group* | |
767 | group() const | |
768 | { | |
a3ad94ed | 769 | gold_assert(!this->is_file_); |
ead1e424 ILT |
770 | return this->group_; |
771 | } | |
772 | ||
773 | Input_file_group* | |
774 | group() | |
775 | { | |
a3ad94ed | 776 | gold_assert(!this->is_file_); |
ead1e424 ILT |
777 | return this->group_; |
778 | } | |
779 | ||
780 | private: | |
781 | bool is_file_; | |
782 | Input_file_argument file_; | |
783 | Input_file_group* group_; | |
784 | }; | |
785 | ||
786 | // A group from the command line. This is a set of arguments within | |
787 | // --start-group ... --end-group. | |
788 | ||
789 | class Input_file_group | |
92e059d8 | 790 | { |
ead1e424 ILT |
791 | public: |
792 | typedef std::vector<Input_argument> Files; | |
793 | typedef Files::const_iterator const_iterator; | |
794 | ||
795 | Input_file_group() | |
796 | : files_() | |
797 | { } | |
798 | ||
799 | // Add a file to the end of the group. | |
800 | void | |
801 | add_file(const Input_file_argument& arg) | |
802 | { this->files_.push_back(Input_argument(arg)); } | |
803 | ||
804 | // Iterators to iterate over the group contents. | |
805 | ||
806 | const_iterator | |
807 | begin() const | |
808 | { return this->files_.begin(); } | |
809 | ||
810 | const_iterator | |
811 | end() const | |
812 | { return this->files_.end(); } | |
813 | ||
814 | private: | |
815 | Files files_; | |
92e059d8 ILT |
816 | }; |
817 | ||
dbe717ef ILT |
818 | // A list of files from the command line or a script. |
819 | ||
820 | class Input_arguments | |
821 | { | |
822 | public: | |
823 | typedef std::vector<Input_argument> Input_argument_list; | |
824 | typedef Input_argument_list::const_iterator const_iterator; | |
825 | ||
826 | Input_arguments() | |
827 | : input_argument_list_(), in_group_(false) | |
828 | { } | |
829 | ||
830 | // Add a file. | |
831 | void | |
832 | add_file(const Input_file_argument& arg); | |
833 | ||
834 | // Start a group (the --start-group option). | |
835 | void | |
836 | start_group(); | |
837 | ||
838 | // End a group (the --end-group option). | |
839 | void | |
840 | end_group(); | |
841 | ||
842 | // Return whether we are currently in a group. | |
843 | bool | |
844 | in_group() const | |
845 | { return this->in_group_; } | |
846 | ||
fe9a4c12 ILT |
847 | // The number of entries in the list. |
848 | int | |
849 | size() const | |
850 | { return this->input_argument_list_.size(); } | |
851 | ||
dbe717ef ILT |
852 | // Iterators to iterate over the list of input files. |
853 | ||
854 | const_iterator | |
855 | begin() const | |
856 | { return this->input_argument_list_.begin(); } | |
857 | ||
858 | const_iterator | |
859 | end() const | |
860 | { return this->input_argument_list_.end(); } | |
861 | ||
862 | // Return whether the list is empty. | |
863 | bool | |
864 | empty() const | |
865 | { return this->input_argument_list_.empty(); } | |
866 | ||
867 | private: | |
868 | Input_argument_list input_argument_list_; | |
869 | bool in_group_; | |
870 | }; | |
871 | ||
bae7f79e ILT |
872 | // All the information read from the command line. |
873 | ||
874 | class Command_line | |
875 | { | |
876 | public: | |
ead1e424 ILT |
877 | typedef Input_arguments::const_iterator const_iterator; |
878 | ||
e5756efb | 879 | Command_line(Script_options*); |
bae7f79e ILT |
880 | |
881 | // Process the command line options. This will exit with an | |
882 | // appropriate error message if an unrecognized option is seen. | |
883 | void | |
884 | process(int argc, char** argv); | |
885 | ||
a0451b38 ILT |
886 | // Process one command-line option. This takes the index of argv to |
887 | // process, and returns the index for the next option. | |
888 | int | |
889 | process_one_option(int argc, char** argv, int i, bool* no_more_options); | |
890 | ||
61ba1cf9 ILT |
891 | // Handle a -l option. |
892 | int | |
3c2fafa5 | 893 | process_l_option(int, char**, char*, bool); |
61ba1cf9 | 894 | |
88dd47ac ILT |
895 | // Handle a -R option when it means --rpath. |
896 | void | |
897 | add_to_rpath(const char* arg) | |
898 | { this->options_.add_to_rpath(arg); } | |
899 | ||
900 | // Add a file for which we just read the symbols. | |
901 | void | |
902 | add_just_symbols_file(const char* arg) | |
903 | { | |
904 | this->inputs_.add_file(Input_file_argument(arg, false, "", true, | |
905 | this->position_options_)); | |
906 | } | |
907 | ||
ead1e424 ILT |
908 | // Handle a --start-group option. |
909 | void | |
910 | start_group(const char* arg); | |
911 | ||
912 | // Handle a --end-group option. | |
913 | void | |
914 | end_group(const char* arg); | |
915 | ||
3c2fafa5 ILT |
916 | // Get an option argument--a helper function for special processing. |
917 | const char* | |
918 | get_special_argument(const char* longname, int argc, char** argv, | |
919 | const char* arg, bool long_option, | |
920 | int *pret); | |
921 | ||
61ba1cf9 | 922 | // Get the general options. |
bae7f79e ILT |
923 | const General_options& |
924 | options() const | |
925 | { return this->options_; } | |
926 | ||
3c2fafa5 ILT |
927 | // Get the position dependent options. |
928 | const Position_dependent_options& | |
929 | position_dependent_options() const | |
930 | { return this->position_options_; } | |
931 | ||
e5756efb ILT |
932 | // Get the options which may be set from a linker script. |
933 | Script_options* | |
934 | script_options() | |
935 | { return this->options_.script_options(); } | |
936 | ||
937 | const Script_options* | |
938 | script_options() const | |
939 | { return this->options_.script_options(); } | |
940 | ||
fe9a4c12 ILT |
941 | // The number of input files. |
942 | int | |
943 | number_of_input_files() const | |
944 | { return this->inputs_.size(); } | |
945 | ||
ead1e424 ILT |
946 | // Iterators to iterate over the list of input files. |
947 | ||
948 | const_iterator | |
949 | begin() const | |
950 | { return this->inputs_.begin(); } | |
951 | ||
952 | const_iterator | |
953 | end() const | |
954 | { return this->inputs_.end(); } | |
bae7f79e ILT |
955 | |
956 | private: | |
ead1e424 ILT |
957 | Command_line(const Command_line&); |
958 | Command_line& operator=(const Command_line&); | |
959 | ||
960 | // Report usage error. | |
961 | void | |
962 | usage() ATTRIBUTE_NORETURN; | |
963 | void | |
964 | usage(const char* msg, const char* opt) ATTRIBUTE_NORETURN; | |
965 | void | |
966 | usage(const char* msg, char opt) ATTRIBUTE_NORETURN; | |
967 | ||
968 | // Apply a command line option. | |
969 | void | |
970 | apply_option(const gold::options::One_option&, const char*); | |
971 | ||
972 | // Add a file. | |
973 | void | |
974 | add_file(const char* name, bool is_lib); | |
bae7f79e | 975 | |
46738c9a ILT |
976 | // Examine the result of processing the command-line, and verify |
977 | // the flags do not contradict each other or are otherwise illegal. | |
978 | void | |
979 | normalize_options(); | |
980 | ||
bae7f79e ILT |
981 | General_options options_; |
982 | Position_dependent_options position_options_; | |
ead1e424 | 983 | Input_arguments inputs_; |
bae7f79e ILT |
984 | }; |
985 | ||
986 | } // End namespace gold. | |
987 | ||
988 | #endif // !defined(GOLD_OPTIONS_H) |