Commit | Line | Data |
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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 | ||
756ac4a8 ILT |
263 | // -Tbss: The address of the BSS segment |
264 | uint64_t | |
265 | bss_segment_address() const | |
266 | { return this->bss_segment_address_; } | |
267 | ||
268 | // Whether -Tbss was used. | |
269 | bool | |
270 | user_set_bss_segment_address() const | |
271 | { return this->bss_segment_address_ != -1U; } | |
272 | ||
273 | // -Tdata: The address of the data segment | |
274 | uint64_t | |
275 | data_segment_address() const | |
276 | { return this->data_segment_address_; } | |
277 | ||
278 | // Whether -Tdata was used. | |
279 | bool | |
280 | user_set_data_segment_address() const | |
281 | { return this->data_segment_address_ != -1U; } | |
282 | ||
0c5e9c22 ILT |
283 | // -Ttext: The address of the .text section |
284 | uint64_t | |
285 | text_segment_address() const | |
286 | { return this->text_segment_address_; } | |
287 | ||
288 | // Whether -Ttext was used. | |
289 | bool | |
290 | user_set_text_segment_address() const | |
291 | { return this->text_segment_address_ != -1U; } | |
292 | ||
fe9a4c12 ILT |
293 | // --threads: Whether to use threads. |
294 | bool | |
295 | threads() const | |
296 | { return this->threads_; } | |
297 | ||
298 | // --thread-count-initial: Threads to use in initial pass. | |
299 | int | |
300 | thread_count_initial() const | |
301 | { return this->thread_count_initial_; } | |
302 | ||
303 | // --thread-count-middle: Threads to use in middle pass. | |
304 | int | |
305 | thread_count_middle() const | |
306 | { return this->thread_count_middle_; } | |
307 | ||
308 | // --thread-count-final: Threads to use in final pass. | |
309 | int | |
310 | thread_count_final() const | |
311 | { return this->thread_count_final_; } | |
312 | ||
35cdfc9a ILT |
313 | // -z execstack, -z noexecstack |
314 | bool | |
315 | is_execstack_set() const | |
316 | { return this->execstack_ != EXECSTACK_FROM_INPUT; } | |
317 | ||
318 | bool | |
319 | is_stack_executable() const | |
320 | { return this->execstack_ == EXECSTACK_YES; } | |
321 | ||
c7912668 ILT |
322 | // --debug |
323 | unsigned int | |
324 | debug() const | |
325 | { return this->debug_; } | |
326 | ||
e5756efb ILT |
327 | // Return the options which may be set from a linker script. |
328 | Script_options* | |
329 | script_options() | |
330 | { return this->script_options_; } | |
331 | ||
332 | const Script_options* | |
333 | script_options() const | |
334 | { return this->script_options_; } | |
335 | ||
bae7f79e | 336 | private: |
dbe717ef ILT |
337 | // Don't copy this structure. |
338 | General_options(const General_options&); | |
339 | General_options& operator=(const General_options&); | |
340 | ||
bae7f79e ILT |
341 | friend class Command_line; |
342 | friend class options::Command_line_options; | |
343 | ||
9e2dcb77 ILT |
344 | // Which symbols to strip. |
345 | enum Strip | |
346 | { | |
347 | // Don't strip any symbols. | |
348 | STRIP_NONE, | |
349 | // Strip all symbols. | |
350 | STRIP_ALL, | |
351 | // Strip debugging information. | |
02d2ba74 ILT |
352 | STRIP_DEBUG, |
353 | // Strip debugging information that's not used by gdb (at least <= 6.7) | |
354 | STRIP_DEBUG_UNUSED_BY_GDB | |
9e2dcb77 ILT |
355 | }; |
356 | ||
35cdfc9a ILT |
357 | // Whether to mark the stack as executable. |
358 | enum Execstack | |
359 | { | |
360 | // Not set on command line. | |
361 | EXECSTACK_FROM_INPUT, | |
362 | // Mark the stack as executable. | |
363 | EXECSTACK_YES, | |
364 | // Mark the stack as not executable. | |
365 | EXECSTACK_NO | |
366 | }; | |
367 | ||
9a0910c3 ILT |
368 | // What compression method to use |
369 | enum CompressionMethod | |
370 | { | |
371 | NO_COMPRESSION, | |
372 | ZLIB_COMPRESSION, | |
373 | }; | |
374 | ||
d391083d ILT |
375 | void |
376 | set_entry(const char* arg) | |
e5756efb | 377 | { this->script_options_->set_entry(arg, strlen(arg)); } |
d391083d | 378 | |
a6badf5a ILT |
379 | void |
380 | set_export_dynamic() | |
381 | { this->export_dynamic_ = true; } | |
382 | ||
fced7afd ILT |
383 | void |
384 | set_soname(const char* arg) | |
385 | { this->soname_ = arg; } | |
386 | ||
dbe717ef ILT |
387 | void |
388 | set_dynamic_linker(const char* arg) | |
389 | { this->dynamic_linker_ = arg; } | |
390 | ||
bae7f79e ILT |
391 | void |
392 | add_to_search_path(const char* arg) | |
ad2d6943 ILT |
393 | { this->search_path_.push_back(Search_directory(arg, false)); } |
394 | ||
395 | void | |
396 | add_to_search_path_with_sysroot(const char* arg) | |
397 | { this->search_path_.push_back(Search_directory(arg, true)); } | |
bae7f79e | 398 | |
ca3a67a5 ILT |
399 | void |
400 | set_optimization_level(const char* arg) | |
3ae7da37 ILT |
401 | { |
402 | char* endptr; | |
403 | this->optimization_level_ = strtol(arg, &endptr, 0); | |
404 | if (*endptr != '\0' || this->optimization_level_ < 0) | |
405 | gold_fatal(_("invalid optimization level: %s"), arg); | |
406 | } | |
ca3a67a5 | 407 | |
61ba1cf9 ILT |
408 | void |
409 | set_output_file_name(const char* arg) | |
410 | { this->output_file_name_ = arg; } | |
411 | ||
516cb3d0 ILT |
412 | void |
413 | set_output_format(const char*); | |
414 | ||
bae7f79e ILT |
415 | void |
416 | set_relocatable() | |
417 | { this->is_relocatable_ = true; } | |
418 | ||
9e2dcb77 ILT |
419 | void |
420 | set_strip_all() | |
421 | { this->strip_ = STRIP_ALL; } | |
422 | ||
46738c9a ILT |
423 | // Note: normalize_options() depends on the fact that this turns off |
424 | // STRIP_ALL if it were already set. | |
9e2dcb77 ILT |
425 | void |
426 | set_strip_debug() | |
427 | { this->strip_ = STRIP_DEBUG; } | |
428 | ||
02d2ba74 ILT |
429 | void |
430 | set_strip_debug_gdb() | |
431 | { this->strip_ = STRIP_DEBUG_UNUSED_BY_GDB; } | |
432 | ||
e2827e5f ILT |
433 | void |
434 | set_allow_shlib_undefined() | |
435 | { this->allow_shlib_undefined_ = true; } | |
436 | ||
437 | void | |
438 | set_no_allow_shlib_undefined() | |
439 | { this->allow_shlib_undefined_ = false; } | |
440 | ||
51b08ebe ILT |
441 | void |
442 | set_symbolic() | |
443 | { this->symbolic_ = true; } | |
444 | ||
bc2c67ff | 445 | void set_compress_debug_sections(const char* arg) |
9a0910c3 ILT |
446 | { |
447 | if (strcmp(arg, "none") == 0) | |
448 | this->compress_debug_sections_ = NO_COMPRESSION; | |
449 | #ifdef HAVE_ZLIB_H | |
450 | else if (strcmp(arg, "zlib") == 0) | |
451 | this->compress_debug_sections_ = ZLIB_COMPRESSION; | |
452 | #endif | |
453 | else | |
bc2c67ff | 454 | gold_fatal(_("unsupported argument to --compress-debug-sections: %s"), |
9a0910c3 ILT |
455 | arg); |
456 | } | |
457 | ||
e5756efb ILT |
458 | void |
459 | define_symbol(const char* arg); | |
460 | ||
a2b1aa12 ILT |
461 | void |
462 | set_demangle() | |
463 | { this->demangle_ = true; } | |
464 | ||
465 | void | |
466 | clear_demangle() | |
467 | { this->demangle_ = false; } | |
468 | ||
a55ce7fe ILT |
469 | void |
470 | set_detect_odr_violations() | |
471 | { this->detect_odr_violations_ = true; } | |
472 | ||
7da52175 | 473 | void |
192f9b85 | 474 | set_create_eh_frame_hdr() |
7da52175 ILT |
475 | { this->create_eh_frame_hdr_ = true; } |
476 | ||
41f542e7 ILT |
477 | void |
478 | add_to_rpath(const char* arg) | |
ad2d6943 | 479 | { this->rpath_.push_back(Search_directory(arg, false)); } |
41f542e7 | 480 | |
15b3cfae ILT |
481 | void |
482 | add_to_rpath_link(const char* arg) | |
ad2d6943 | 483 | { this->rpath_link_.push_back(Search_directory(arg, false)); } |
15b3cfae | 484 | |
92e059d8 ILT |
485 | void |
486 | set_shared() | |
487 | { this->is_shared_ = true; } | |
488 | ||
bae7f79e ILT |
489 | void |
490 | set_static() | |
491 | { this->is_static_ = true; } | |
492 | ||
e44fcf3b ILT |
493 | void |
494 | set_stats() | |
495 | { this->print_stats_ = true; } | |
496 | ||
ad2d6943 ILT |
497 | void |
498 | set_sysroot(const char* arg) | |
499 | { this->sysroot_ = arg; } | |
500 | ||
0c5e9c22 | 501 | void |
756ac4a8 | 502 | set_segment_address(const char* name, const char* arg, uint64_t* val) |
0c5e9c22 ILT |
503 | { |
504 | char* endptr; | |
756ac4a8 ILT |
505 | *val = strtoull(arg, &endptr, 0); |
506 | if (*endptr != '\0' || *val == -1U) | |
507 | gold_fatal(_("invalid argument to %s: %s"), name, arg); | |
0c5e9c22 ILT |
508 | } |
509 | ||
756ac4a8 ILT |
510 | void |
511 | set_bss_segment_address(const char* arg) | |
512 | { this->set_segment_address("-Tbss", arg, &this->bss_segment_address_); } | |
513 | ||
514 | void | |
515 | set_data_segment_address(const char* arg) | |
516 | { this->set_segment_address("-Tdata", arg, &this->data_segment_address_); } | |
517 | ||
518 | void | |
519 | set_text_segment_address(const char* arg) | |
520 | { this->set_segment_address("-Ttext", arg, &this->text_segment_address_); } | |
521 | ||
fe9a4c12 ILT |
522 | int |
523 | parse_thread_count(const char* arg) | |
524 | { | |
525 | char* endptr; | |
3ae7da37 | 526 | const int count = strtol(arg, &endptr, 0); |
fe9a4c12 | 527 | if (*endptr != '\0' || count < 0) |
3ae7da37 | 528 | gold_fatal(_("invalid thread count: %s"), arg); |
fe9a4c12 ILT |
529 | return count; |
530 | } | |
531 | ||
532 | void | |
533 | set_threads() | |
3ae7da37 ILT |
534 | { |
535 | #ifndef ENABLE_THREADS | |
536 | gold_fatal(_("--threads not supported")); | |
537 | #endif | |
538 | this->threads_ = true; | |
539 | } | |
fe9a4c12 ILT |
540 | |
541 | void | |
542 | clear_threads() | |
543 | { this->threads_ = false; } | |
544 | ||
545 | void | |
546 | set_thread_count(const char* arg) | |
547 | { | |
548 | int count = this->parse_thread_count(arg); | |
549 | this->thread_count_initial_ = count; | |
550 | this->thread_count_middle_ = count; | |
551 | this->thread_count_final_ = count; | |
552 | } | |
553 | ||
554 | void | |
555 | set_thread_count_initial(const char* arg) | |
556 | { this->thread_count_initial_ = this->parse_thread_count(arg); } | |
557 | ||
558 | void | |
559 | set_thread_count_middle(const char* arg) | |
460c00b5 | 560 | { this->thread_count_middle_ = this->parse_thread_count(arg); } |
fe9a4c12 ILT |
561 | |
562 | void | |
563 | set_thread_count_final(const char* arg) | |
460c00b5 | 564 | { this->thread_count_final_ = this->parse_thread_count(arg); } |
fe9a4c12 | 565 | |
652ec9bd ILT |
566 | void |
567 | ignore(const char*) | |
568 | { } | |
569 | ||
35cdfc9a ILT |
570 | void |
571 | set_execstack() | |
572 | { this->execstack_ = EXECSTACK_YES; } | |
573 | ||
574 | void | |
575 | set_noexecstack() | |
576 | { this->execstack_ = EXECSTACK_NO; } | |
577 | ||
c7912668 ILT |
578 | void |
579 | set_debug(unsigned int flags) | |
580 | { this->debug_ = flags; } | |
581 | ||
35cdfc9a ILT |
582 | // Handle the -z option. |
583 | void | |
584 | handle_z_option(const char*); | |
585 | ||
c7912668 ILT |
586 | // Handle the --debug option. |
587 | void | |
588 | handle_debug_option(const char*); | |
589 | ||
ad2d6943 ILT |
590 | // Apply any sysroot to the directory lists. |
591 | void | |
592 | add_sysroot(); | |
593 | ||
a6badf5a | 594 | bool export_dynamic_; |
fced7afd | 595 | const char* soname_; |
dbe717ef | 596 | const char* dynamic_linker_; |
bae7f79e | 597 | Dir_list search_path_; |
ca3a67a5 | 598 | int optimization_level_; |
61ba1cf9 | 599 | const char* output_file_name_; |
bc644c6c | 600 | Object_format output_format_; |
0daa6f62 | 601 | const char* output_format_string_; |
bae7f79e | 602 | bool is_relocatable_; |
9e2dcb77 | 603 | Strip strip_; |
e2827e5f | 604 | bool allow_shlib_undefined_; |
51b08ebe | 605 | bool symbolic_; |
9a0910c3 | 606 | CompressionMethod compress_debug_sections_; |
a2b1aa12 | 607 | bool demangle_; |
a55ce7fe | 608 | bool detect_odr_violations_; |
7da52175 | 609 | bool create_eh_frame_hdr_; |
41f542e7 | 610 | Dir_list rpath_; |
15b3cfae | 611 | Dir_list rpath_link_; |
92e059d8 | 612 | bool is_shared_; |
bae7f79e | 613 | bool is_static_; |
e44fcf3b | 614 | bool print_stats_; |
ad2d6943 | 615 | std::string sysroot_; |
756ac4a8 ILT |
616 | uint64_t bss_segment_address_; |
617 | uint64_t data_segment_address_; | |
0c5e9c22 | 618 | uint64_t text_segment_address_; |
fe9a4c12 ILT |
619 | bool threads_; |
620 | int thread_count_initial_; | |
621 | int thread_count_middle_; | |
622 | int thread_count_final_; | |
35cdfc9a | 623 | Execstack execstack_; |
c7912668 | 624 | unsigned int debug_; |
e5756efb ILT |
625 | // Some options can also be set from linker scripts. Those are |
626 | // stored here. | |
627 | Script_options* script_options_; | |
bae7f79e ILT |
628 | }; |
629 | ||
630 | // The current state of the position dependent options. | |
631 | ||
632 | class Position_dependent_options | |
633 | { | |
634 | public: | |
bc644c6c ILT |
635 | typedef General_options::Object_format Object_format; |
636 | ||
bae7f79e ILT |
637 | Position_dependent_options(); |
638 | ||
61611222 ILT |
639 | // -Bdynamic/-Bstatic: Whether we are searching for a static archive |
640 | // -rather than a shared object. | |
bae7f79e | 641 | bool |
dbe717ef | 642 | do_static_search() const |
bae7f79e ILT |
643 | { return this->do_static_search_; } |
644 | ||
dbe717ef ILT |
645 | // --as-needed: Whether to add a DT_NEEDED argument only if the |
646 | // dynamic object is used. | |
647 | bool | |
648 | as_needed() const | |
649 | { return this->as_needed_; } | |
bae7f79e | 650 | |
4973341a ILT |
651 | // --whole-archive: Whether to include the entire contents of an |
652 | // --archive. | |
653 | bool | |
654 | include_whole_archive() const | |
655 | { return this->include_whole_archive_; } | |
656 | ||
bc644c6c ILT |
657 | // --format: The format of the input file. |
658 | Object_format | |
659 | input_format() const | |
660 | { return this->input_format_; } | |
661 | ||
bae7f79e ILT |
662 | void |
663 | set_static_search() | |
664 | { this->do_static_search_ = true; } | |
665 | ||
666 | void | |
667 | set_dynamic_search() | |
668 | { this->do_static_search_ = false; } | |
669 | ||
dbe717ef ILT |
670 | void |
671 | set_as_needed() | |
672 | { this->as_needed_ = true; } | |
673 | ||
674 | void | |
675 | clear_as_needed() | |
676 | { this->as_needed_ = false; } | |
677 | ||
4973341a ILT |
678 | void |
679 | set_whole_archive() | |
680 | { this->include_whole_archive_ = true; } | |
681 | ||
682 | void | |
683 | clear_whole_archive() | |
684 | { this->include_whole_archive_ = false; } | |
685 | ||
bc644c6c ILT |
686 | void |
687 | set_input_format(const char*); | |
688 | ||
dbe717ef | 689 | private: |
bae7f79e | 690 | bool do_static_search_; |
dbe717ef | 691 | bool as_needed_; |
4973341a | 692 | bool include_whole_archive_; |
bc644c6c | 693 | Object_format input_format_; |
bae7f79e ILT |
694 | }; |
695 | ||
696 | // A single file or library argument from the command line. | |
697 | ||
ead1e424 | 698 | class Input_file_argument |
bae7f79e ILT |
699 | { |
700 | public: | |
51dee2fe ILT |
701 | // name: file name or library name |
702 | // is_lib: true if name is a library name: that is, emits the leading | |
703 | // "lib" and trailing ".so"/".a" from the name | |
704 | // extra_search_path: an extra directory to look for the file, prior | |
705 | // to checking the normal library search path. If this is "", | |
706 | // then no extra directory is added. | |
88dd47ac | 707 | // just_symbols: whether this file only defines symbols. |
51dee2fe | 708 | // options: The position dependent options at this point in the |
ad2d6943 | 709 | // command line, such as --whole-archive. |
ead1e424 | 710 | Input_file_argument() |
88dd47ac ILT |
711 | : name_(), is_lib_(false), extra_search_path_(""), just_symbols_(false), |
712 | options_() | |
ead1e424 ILT |
713 | { } |
714 | ||
715 | Input_file_argument(const char* name, bool is_lib, | |
51dee2fe | 716 | const char* extra_search_path, |
88dd47ac | 717 | bool just_symbols, |
ead1e424 | 718 | const Position_dependent_options& options) |
51dee2fe | 719 | : name_(name), is_lib_(is_lib), extra_search_path_(extra_search_path), |
88dd47ac | 720 | just_symbols_(just_symbols), options_(options) |
bae7f79e ILT |
721 | { } |
722 | ||
723 | const char* | |
724 | name() const | |
dbe717ef | 725 | { return this->name_.c_str(); } |
bae7f79e ILT |
726 | |
727 | const Position_dependent_options& | |
728 | options() const | |
729 | { return this->options_; } | |
730 | ||
731 | bool | |
732 | is_lib() const | |
61ba1cf9 | 733 | { return this->is_lib_; } |
bae7f79e | 734 | |
51dee2fe ILT |
735 | const char* |
736 | extra_search_path() const | |
737 | { | |
738 | return (this->extra_search_path_.empty() | |
739 | ? NULL | |
740 | : this->extra_search_path_.c_str()); | |
741 | } | |
742 | ||
88dd47ac ILT |
743 | // Return whether we should only read symbols from this file. |
744 | bool | |
745 | just_symbols() const | |
746 | { return this->just_symbols_; } | |
747 | ||
51dee2fe ILT |
748 | // Return whether this file may require a search using the -L |
749 | // options. | |
750 | bool | |
751 | may_need_search() const | |
752 | { return this->is_lib_ || !this->extra_search_path_.empty(); } | |
753 | ||
bae7f79e | 754 | private: |
dbe717ef ILT |
755 | // We use std::string, not const char*, here for convenience when |
756 | // using script files, so that we do not have to preserve the string | |
757 | // in that case. | |
758 | std::string name_; | |
61ba1cf9 | 759 | bool is_lib_; |
51dee2fe | 760 | std::string extra_search_path_; |
88dd47ac | 761 | bool just_symbols_; |
bae7f79e ILT |
762 | Position_dependent_options options_; |
763 | }; | |
764 | ||
ead1e424 ILT |
765 | // A file or library, or a group, from the command line. |
766 | ||
767 | class Input_argument | |
768 | { | |
769 | public: | |
770 | // Create a file or library argument. | |
771 | explicit Input_argument(Input_file_argument file) | |
772 | : is_file_(true), file_(file), group_(NULL) | |
773 | { } | |
774 | ||
775 | // Create a group argument. | |
776 | explicit Input_argument(Input_file_group* group) | |
777 | : is_file_(false), group_(group) | |
778 | { } | |
779 | ||
780 | // Return whether this is a file. | |
781 | bool | |
782 | is_file() const | |
783 | { return this->is_file_; } | |
784 | ||
785 | // Return whether this is a group. | |
786 | bool | |
787 | is_group() const | |
788 | { return !this->is_file_; } | |
789 | ||
790 | // Return the information about the file. | |
791 | const Input_file_argument& | |
792 | file() const | |
793 | { | |
a3ad94ed | 794 | gold_assert(this->is_file_); |
ead1e424 ILT |
795 | return this->file_; |
796 | } | |
797 | ||
798 | // Return the information about the group. | |
799 | const Input_file_group* | |
800 | group() const | |
801 | { | |
a3ad94ed | 802 | gold_assert(!this->is_file_); |
ead1e424 ILT |
803 | return this->group_; |
804 | } | |
805 | ||
806 | Input_file_group* | |
807 | group() | |
808 | { | |
a3ad94ed | 809 | gold_assert(!this->is_file_); |
ead1e424 ILT |
810 | return this->group_; |
811 | } | |
812 | ||
813 | private: | |
814 | bool is_file_; | |
815 | Input_file_argument file_; | |
816 | Input_file_group* group_; | |
817 | }; | |
818 | ||
819 | // A group from the command line. This is a set of arguments within | |
820 | // --start-group ... --end-group. | |
821 | ||
822 | class Input_file_group | |
92e059d8 | 823 | { |
ead1e424 ILT |
824 | public: |
825 | typedef std::vector<Input_argument> Files; | |
826 | typedef Files::const_iterator const_iterator; | |
827 | ||
828 | Input_file_group() | |
829 | : files_() | |
830 | { } | |
831 | ||
832 | // Add a file to the end of the group. | |
833 | void | |
834 | add_file(const Input_file_argument& arg) | |
835 | { this->files_.push_back(Input_argument(arg)); } | |
836 | ||
837 | // Iterators to iterate over the group contents. | |
838 | ||
839 | const_iterator | |
840 | begin() const | |
841 | { return this->files_.begin(); } | |
842 | ||
843 | const_iterator | |
844 | end() const | |
845 | { return this->files_.end(); } | |
846 | ||
847 | private: | |
848 | Files files_; | |
92e059d8 ILT |
849 | }; |
850 | ||
dbe717ef ILT |
851 | // A list of files from the command line or a script. |
852 | ||
853 | class Input_arguments | |
854 | { | |
855 | public: | |
856 | typedef std::vector<Input_argument> Input_argument_list; | |
857 | typedef Input_argument_list::const_iterator const_iterator; | |
858 | ||
859 | Input_arguments() | |
860 | : input_argument_list_(), in_group_(false) | |
861 | { } | |
862 | ||
863 | // Add a file. | |
864 | void | |
865 | add_file(const Input_file_argument& arg); | |
866 | ||
867 | // Start a group (the --start-group option). | |
868 | void | |
869 | start_group(); | |
870 | ||
871 | // End a group (the --end-group option). | |
872 | void | |
873 | end_group(); | |
874 | ||
875 | // Return whether we are currently in a group. | |
876 | bool | |
877 | in_group() const | |
878 | { return this->in_group_; } | |
879 | ||
fe9a4c12 ILT |
880 | // The number of entries in the list. |
881 | int | |
882 | size() const | |
883 | { return this->input_argument_list_.size(); } | |
884 | ||
dbe717ef ILT |
885 | // Iterators to iterate over the list of input files. |
886 | ||
887 | const_iterator | |
888 | begin() const | |
889 | { return this->input_argument_list_.begin(); } | |
890 | ||
891 | const_iterator | |
892 | end() const | |
893 | { return this->input_argument_list_.end(); } | |
894 | ||
895 | // Return whether the list is empty. | |
896 | bool | |
897 | empty() const | |
898 | { return this->input_argument_list_.empty(); } | |
899 | ||
900 | private: | |
901 | Input_argument_list input_argument_list_; | |
902 | bool in_group_; | |
903 | }; | |
904 | ||
bae7f79e ILT |
905 | // All the information read from the command line. |
906 | ||
907 | class Command_line | |
908 | { | |
909 | public: | |
ead1e424 ILT |
910 | typedef Input_arguments::const_iterator const_iterator; |
911 | ||
e5756efb | 912 | Command_line(Script_options*); |
bae7f79e ILT |
913 | |
914 | // Process the command line options. This will exit with an | |
915 | // appropriate error message if an unrecognized option is seen. | |
916 | void | |
917 | process(int argc, char** argv); | |
918 | ||
a0451b38 ILT |
919 | // Process one command-line option. This takes the index of argv to |
920 | // process, and returns the index for the next option. | |
921 | int | |
922 | process_one_option(int argc, char** argv, int i, bool* no_more_options); | |
923 | ||
61ba1cf9 ILT |
924 | // Handle a -l option. |
925 | int | |
3c2fafa5 | 926 | process_l_option(int, char**, char*, bool); |
61ba1cf9 | 927 | |
88dd47ac ILT |
928 | // Handle a -R option when it means --rpath. |
929 | void | |
930 | add_to_rpath(const char* arg) | |
931 | { this->options_.add_to_rpath(arg); } | |
932 | ||
933 | // Add a file for which we just read the symbols. | |
934 | void | |
935 | add_just_symbols_file(const char* arg) | |
936 | { | |
937 | this->inputs_.add_file(Input_file_argument(arg, false, "", true, | |
938 | this->position_options_)); | |
939 | } | |
940 | ||
ead1e424 ILT |
941 | // Handle a --start-group option. |
942 | void | |
943 | start_group(const char* arg); | |
944 | ||
945 | // Handle a --end-group option. | |
946 | void | |
947 | end_group(const char* arg); | |
948 | ||
3c2fafa5 ILT |
949 | // Get an option argument--a helper function for special processing. |
950 | const char* | |
951 | get_special_argument(const char* longname, int argc, char** argv, | |
952 | const char* arg, bool long_option, | |
953 | int *pret); | |
954 | ||
61ba1cf9 | 955 | // Get the general options. |
bae7f79e ILT |
956 | const General_options& |
957 | options() const | |
958 | { return this->options_; } | |
959 | ||
3c2fafa5 ILT |
960 | // Get the position dependent options. |
961 | const Position_dependent_options& | |
962 | position_dependent_options() const | |
963 | { return this->position_options_; } | |
964 | ||
e5756efb ILT |
965 | // Get the options which may be set from a linker script. |
966 | Script_options* | |
967 | script_options() | |
968 | { return this->options_.script_options(); } | |
969 | ||
970 | const Script_options* | |
971 | script_options() const | |
972 | { return this->options_.script_options(); } | |
973 | ||
fe9a4c12 ILT |
974 | // The number of input files. |
975 | int | |
976 | number_of_input_files() const | |
977 | { return this->inputs_.size(); } | |
978 | ||
ead1e424 ILT |
979 | // Iterators to iterate over the list of input files. |
980 | ||
981 | const_iterator | |
982 | begin() const | |
983 | { return this->inputs_.begin(); } | |
984 | ||
985 | const_iterator | |
986 | end() const | |
987 | { return this->inputs_.end(); } | |
bae7f79e ILT |
988 | |
989 | private: | |
ead1e424 ILT |
990 | Command_line(const Command_line&); |
991 | Command_line& operator=(const Command_line&); | |
992 | ||
993 | // Report usage error. | |
994 | void | |
995 | usage() ATTRIBUTE_NORETURN; | |
996 | void | |
997 | usage(const char* msg, const char* opt) ATTRIBUTE_NORETURN; | |
998 | void | |
999 | usage(const char* msg, char opt) ATTRIBUTE_NORETURN; | |
1000 | ||
1001 | // Apply a command line option. | |
1002 | void | |
1003 | apply_option(const gold::options::One_option&, const char*); | |
1004 | ||
1005 | // Add a file. | |
1006 | void | |
1007 | add_file(const char* name, bool is_lib); | |
bae7f79e | 1008 | |
46738c9a ILT |
1009 | // Examine the result of processing the command-line, and verify |
1010 | // the flags do not contradict each other or are otherwise illegal. | |
1011 | void | |
1012 | normalize_options(); | |
1013 | ||
bae7f79e ILT |
1014 | General_options options_; |
1015 | Position_dependent_options position_options_; | |
ead1e424 | 1016 | Input_arguments inputs_; |
bae7f79e ILT |
1017 | }; |
1018 | ||
1019 | } // End namespace gold. | |
1020 | ||
1021 | #endif // !defined(GOLD_OPTIONS_H) |