]>
Commit | Line | Data |
---|---|---|
bae7f79e ILT |
1 | // options.c -- handle command line options for gold |
2 | ||
250d07de | 3 | // Copyright (C) 2006-2021 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 | ||
ad2d6943 ILT |
23 | #include "gold.h" |
24 | ||
8c604651 | 25 | #include <cerrno> |
a2b1aa12 | 26 | #include <cstdlib> |
04bf7072 | 27 | #include <cstring> |
8c604651 | 28 | #include <fstream> |
ee1fe73e | 29 | #include <vector> |
bae7f79e | 30 | #include <iostream> |
ad2d6943 ILT |
31 | #include <sys/stat.h> |
32 | #include "filenames.h" | |
33 | #include "libiberty.h" | |
086a1841 | 34 | #include "demangle.h" |
819d6c3a | 35 | #include "../bfd/bfdver.h" |
bae7f79e | 36 | |
c7912668 | 37 | #include "debug.h" |
e5756efb | 38 | #include "script.h" |
ee1fe73e | 39 | #include "target-select.h" |
bae7f79e | 40 | #include "options.h" |
89fc3421 | 41 | #include "plugin.h" |
bae7f79e | 42 | |
61ba1cf9 ILT |
43 | namespace gold |
44 | { | |
45 | ||
ee1fe73e ILT |
46 | General_options |
47 | Position_dependent_options::default_options_; | |
bae7f79e | 48 | |
ee1fe73e | 49 | namespace options |
bae7f79e | 50 | { |
bae7f79e | 51 | |
293c1386 | 52 | // This flag is TRUE if we should register the command-line options as they |
9b547ce6 | 53 | // are constructed. It is set after construction of the options within |
293c1386 CC |
54 | // class Position_dependent_options. |
55 | static bool ready_to_register = false; | |
56 | ||
ee1fe73e ILT |
57 | // This global variable is set up as General_options is constructed. |
58 | static std::vector<const One_option*> registered_options; | |
bae7f79e | 59 | |
ee1fe73e ILT |
60 | // These are set up at the same time -- the variables that accept one |
61 | // dash, two, or require -z. A single variable may be in more than | |
9b547ce6 | 62 | // one of these data structures. |
ee1fe73e ILT |
63 | typedef Unordered_map<std::string, One_option*> Option_map; |
64 | static Option_map* long_options = NULL; | |
65 | static One_option* short_options[128]; | |
bae7f79e | 66 | |
ee1fe73e ILT |
67 | void |
68 | One_option::register_option() | |
35cdfc9a | 69 | { |
293c1386 CC |
70 | if (!ready_to_register) |
71 | return; | |
72 | ||
ee1fe73e | 73 | registered_options.push_back(this); |
35cdfc9a | 74 | |
ee1fe73e ILT |
75 | // We can't make long_options a static Option_map because we can't |
76 | // guarantee that will be initialized before register_option() is | |
77 | // first called. | |
78 | if (long_options == NULL) | |
79 | long_options = new Option_map; | |
cd72c291 | 80 | |
ee1fe73e ILT |
81 | // TWO_DASHES means that two dashes are preferred, but one is ok too. |
82 | if (!this->longname.empty()) | |
83 | (*long_options)[this->longname] = this; | |
35cdfc9a | 84 | |
ee1fe73e ILT |
85 | const int shortname_as_int = static_cast<int>(this->shortname); |
86 | gold_assert(shortname_as_int >= 0 && shortname_as_int < 128); | |
87 | if (this->shortname != '\0') | |
293c1386 CC |
88 | { |
89 | gold_assert(short_options[shortname_as_int] == NULL); | |
90 | short_options[shortname_as_int] = this; | |
91 | } | |
ee1fe73e | 92 | } |
c7912668 | 93 | |
ee1fe73e ILT |
94 | void |
95 | One_option::print() const | |
c7912668 | 96 | { |
ee1fe73e ILT |
97 | bool comma = false; |
98 | printf(" "); | |
99 | int len = 2; | |
100 | if (this->shortname != '\0') | |
101 | { | |
102 | len += printf("-%c", this->shortname); | |
103 | if (this->helparg) | |
bbc5ae17 RM |
104 | { |
105 | // -z takes long-names only. | |
106 | gold_assert(this->dashes != DASH_Z); | |
107 | len += printf(" %s", gettext(this->helparg)); | |
108 | } | |
ee1fe73e ILT |
109 | comma = true; |
110 | } | |
111 | if (!this->longname.empty() | |
112 | && !(this->longname[0] == this->shortname | |
113 | && this->longname[1] == '\0')) | |
114 | { | |
115 | if (comma) | |
bbc5ae17 | 116 | len += printf(", "); |
ee1fe73e | 117 | switch (this->dashes) |
bbc5ae17 RM |
118 | { |
119 | case options::ONE_DASH: case options::EXACTLY_ONE_DASH: | |
120 | len += printf("-"); | |
121 | break; | |
122 | case options::TWO_DASHES: case options::EXACTLY_TWO_DASHES: | |
123 | len += printf("--"); | |
124 | break; | |
125 | case options::DASH_Z: | |
126 | len += printf("-z "); | |
127 | break; | |
128 | default: | |
129 | gold_unreachable(); | |
130 | } | |
ee1fe73e ILT |
131 | len += printf("%s", this->longname.c_str()); |
132 | if (this->helparg) | |
bbc5ae17 RM |
133 | { |
134 | // For most options, we print "--frob FOO". But for -z | |
135 | // we print "-z frob=FOO". | |
136 | len += printf("%c%s", this->dashes == options::DASH_Z ? '=' : ' ', | |
137 | gettext(this->helparg)); | |
138 | } | |
ee1fe73e ILT |
139 | } |
140 | ||
141 | if (len >= 30) | |
142 | { | |
143 | printf("\n"); | |
144 | len = 0; | |
145 | } | |
146 | for (; len < 30; ++len) | |
147 | std::putchar(' '); | |
c7912668 | 148 | |
358a9718 CC |
149 | printf("%s", gettext(this->helpstring)); |
150 | if (this->is_default) | |
151 | printf(" (%s)", _("default")); | |
152 | printf("\n"); | |
ee1fe73e | 153 | } |
c7912668 | 154 | |
ee1fe73e ILT |
155 | void |
156 | help() | |
bae7f79e | 157 | { |
ee1fe73e | 158 | printf(_("Usage: %s [options] file...\nOptions:\n"), gold::program_name); |
bae7f79e | 159 | |
ee1fe73e ILT |
160 | std::vector<const One_option*>::const_iterator it; |
161 | for (it = registered_options.begin(); it != registered_options.end(); ++it) | |
162 | (*it)->print(); | |
e96caa79 ILT |
163 | |
164 | // config.guess and libtool.m4 look in ld --help output for the | |
165 | // string "supported targets". | |
166 | printf(_("%s: supported targets:"), gold::program_name); | |
167 | std::vector<const char*> supported_names; | |
168 | gold::supported_target_names(&supported_names); | |
169 | for (std::vector<const char*>::const_iterator p = supported_names.begin(); | |
170 | p != supported_names.end(); | |
171 | ++p) | |
172 | printf(" %s", *p); | |
173 | printf("\n"); | |
819d6c3a | 174 | |
03ef7571 ILT |
175 | printf(_("%s: supported emulations:"), gold::program_name); |
176 | supported_names.clear(); | |
177 | gold::supported_emulation_names(&supported_names); | |
178 | for (std::vector<const char*>::const_iterator p = supported_names.begin(); | |
179 | p != supported_names.end(); | |
180 | ++p) | |
181 | printf(" %s", *p); | |
182 | printf("\n"); | |
183 | ||
819d6c3a ILT |
184 | // REPORT_BUGS_TO is defined in bfd/bfdver.h. |
185 | const char* report = REPORT_BUGS_TO; | |
186 | if (*report != '\0') | |
187 | printf(_("Report bugs to %s\n"), report); | |
ee1fe73e | 188 | } |
61ba1cf9 | 189 | |
ee1fe73e ILT |
190 | // For bool, arg will be NULL (boolean options take no argument); |
191 | // we always just set to true. | |
192 | void | |
193 | parse_bool(const char*, const char*, bool* retval) | |
bae7f79e | 194 | { |
ee1fe73e ILT |
195 | *retval = true; |
196 | } | |
bae7f79e | 197 | |
ee1fe73e ILT |
198 | void |
199 | parse_uint(const char* option_name, const char* arg, int* retval) | |
200 | { | |
201 | char* endptr; | |
202 | *retval = strtol(arg, &endptr, 0); | |
6a59a5c2 | 203 | if (*endptr != '\0' || *retval < 0) |
ee1fe73e | 204 | gold_fatal(_("%s: invalid option value (expected an integer): %s"), |
bbc5ae17 | 205 | option_name, arg); |
ee1fe73e | 206 | } |
bc644c6c | 207 | |
c0a62865 DK |
208 | void |
209 | parse_int(const char* option_name, const char* arg, int* retval) | |
210 | { | |
211 | char* endptr; | |
212 | *retval = strtol(arg, &endptr, 0); | |
213 | if (*endptr != '\0') | |
214 | gold_fatal(_("%s: invalid option value (expected an integer): %s"), | |
bbc5ae17 | 215 | option_name, arg); |
c0a62865 DK |
216 | } |
217 | ||
ee1fe73e | 218 | void |
ca09d69a | 219 | parse_uint64(const char* option_name, const char* arg, uint64_t* retval) |
bc644c6c | 220 | { |
ee1fe73e ILT |
221 | char* endptr; |
222 | *retval = strtoull(arg, &endptr, 0); | |
223 | if (*endptr != '\0') | |
224 | gold_fatal(_("%s: invalid option value (expected an integer): %s"), | |
bbc5ae17 | 225 | option_name, arg); |
ee1fe73e ILT |
226 | } |
227 | ||
c18476e7 ILT |
228 | void |
229 | parse_double(const char* option_name, const char* arg, double* retval) | |
230 | { | |
231 | char* endptr; | |
232 | *retval = strtod(arg, &endptr); | |
233 | if (*endptr != '\0') | |
234 | gold_fatal(_("%s: invalid option value " | |
235 | "(expected a floating point number): %s"), | |
236 | option_name, arg); | |
237 | } | |
238 | ||
9fbd3822 CC |
239 | void |
240 | parse_percent(const char* option_name, const char* arg, double* retval) | |
241 | { | |
242 | char* endptr; | |
243 | *retval = strtod(arg, &endptr) / 100.0; | |
244 | if (*endptr != '\0') | |
245 | gold_fatal(_("%s: invalid option value " | |
246 | "(expected a floating point number): %s"), | |
247 | option_name, arg); | |
248 | } | |
249 | ||
ee1fe73e ILT |
250 | void |
251 | parse_string(const char* option_name, const char* arg, const char** retval) | |
252 | { | |
253 | if (*arg == '\0') | |
254 | gold_fatal(_("%s: must take a non-empty argument"), option_name); | |
255 | *retval = arg; | |
256 | } | |
257 | ||
086a1841 ILT |
258 | void |
259 | parse_optional_string(const char*, const char* arg, const char** retval) | |
260 | { | |
261 | *retval = arg; | |
262 | } | |
263 | ||
ee1fe73e ILT |
264 | void |
265 | parse_dirlist(const char*, const char* arg, Dir_list* retval) | |
266 | { | |
267 | retval->push_back(Search_directory(arg, false)); | |
268 | } | |
269 | ||
c5818ff1 CC |
270 | void |
271 | parse_set(const char*, const char* arg, String_set* retval) | |
272 | { | |
273 | retval->insert(std::string(arg)); | |
274 | } | |
275 | ||
ee1fe73e ILT |
276 | void |
277 | parse_choices(const char* option_name, const char* arg, const char** retval, | |
bbc5ae17 | 278 | const char* choices[], int num_choices) |
ee1fe73e ILT |
279 | { |
280 | for (int i = 0; i < num_choices; i++) | |
281 | if (strcmp(choices[i], arg) == 0) | |
282 | { | |
bbc5ae17 RM |
283 | *retval = arg; |
284 | return; | |
ee1fe73e ILT |
285 | } |
286 | ||
287 | // If we get here, the user did not enter a valid choice, so we die. | |
288 | std::string choices_list; | |
289 | for (int i = 0; i < num_choices; i++) | |
bc644c6c | 290 | { |
ee1fe73e ILT |
291 | choices_list += choices[i]; |
292 | if (i != num_choices - 1) | |
bbc5ae17 | 293 | choices_list += ", "; |
bc644c6c | 294 | } |
ee1fe73e | 295 | gold_fatal(_("%s: must take one of the following arguments: %s"), |
bbc5ae17 | 296 | option_name, choices_list.c_str()); |
bc644c6c ILT |
297 | } |
298 | ||
ee1fe73e | 299 | } // End namespace options. |
a5dc0706 | 300 | |
ee1fe73e ILT |
301 | // Define the handler for "special" options (set via DEFINE_special). |
302 | ||
303 | void | |
304 | General_options::parse_help(const char*, const char*, Command_line*) | |
a5dc0706 | 305 | { |
ee1fe73e ILT |
306 | options::help(); |
307 | ::exit(EXIT_SUCCESS); | |
a5dc0706 ILT |
308 | } |
309 | ||
ee1fe73e ILT |
310 | void |
311 | General_options::parse_version(const char* opt, const char*, Command_line*) | |
312 | { | |
329ca2b1 ST |
313 | bool print_short = (opt[0] == '-' && opt[1] == 'v'); |
314 | gold::print_version(print_short); | |
3dcad376 | 315 | this->printed_version_ = true; |
329ca2b1 ST |
316 | if (!print_short) |
317 | ::exit(EXIT_SUCCESS); | |
ee1fe73e | 318 | } |
61ba1cf9 | 319 | |
b5be4a7c DM |
320 | void |
321 | General_options::parse_V(const char*, const char*, Command_line*) | |
322 | { | |
323 | gold::print_version(true); | |
459c9f1c | 324 | this->printed_version_ = true; |
03ef7571 | 325 | |
b5be4a7c DM |
326 | printf(_(" Supported targets:\n")); |
327 | std::vector<const char*> supported_names; | |
328 | gold::supported_target_names(&supported_names); | |
329 | for (std::vector<const char*>::const_iterator p = supported_names.begin(); | |
330 | p != supported_names.end(); | |
331 | ++p) | |
332 | printf(" %s\n", *p); | |
03ef7571 ILT |
333 | |
334 | printf(_(" Supported emulations:\n")); | |
335 | supported_names.clear(); | |
336 | gold::supported_emulation_names(&supported_names); | |
337 | for (std::vector<const char*>::const_iterator p = supported_names.begin(); | |
338 | p != supported_names.end(); | |
339 | ++p) | |
340 | printf(" %s\n", *p); | |
b5be4a7c DM |
341 | } |
342 | ||
823241a2 FS |
343 | void |
344 | General_options::parse_Bno_symbolic(const char*, const char*, | |
345 | Command_line*) | |
346 | { | |
347 | this->bsymbolic_ = BSYMBOLIC_NONE; | |
348 | } | |
349 | ||
350 | void | |
351 | General_options::parse_Bsymbolic_functions(const char*, const char*, | |
352 | Command_line*) | |
353 | { | |
354 | this->bsymbolic_ = BSYMBOLIC_FUNCTIONS; | |
355 | } | |
356 | ||
357 | void | |
358 | General_options::parse_Bsymbolic(const char*, const char*, | |
359 | Command_line*) | |
360 | { | |
361 | this->bsymbolic_ = BSYMBOLIC_ALL; | |
362 | } | |
363 | ||
ee1fe73e ILT |
364 | void |
365 | General_options::parse_defsym(const char*, const char* arg, | |
bbc5ae17 | 366 | Command_line* cmdline) |
ee1fe73e ILT |
367 | { |
368 | cmdline->script_options().define_symbol(arg); | |
369 | } | |
88dd47ac | 370 | |
cd3c333f CC |
371 | void |
372 | General_options::parse_discard_all(const char*, const char*, | |
373 | Command_line*) | |
374 | { | |
375 | this->discard_locals_ = DISCARD_ALL; | |
376 | } | |
377 | ||
378 | void | |
379 | General_options::parse_discard_locals(const char*, const char*, | |
380 | Command_line*) | |
381 | { | |
382 | this->discard_locals_ = DISCARD_LOCALS; | |
383 | } | |
384 | ||
385 | void | |
386 | General_options::parse_discard_none(const char*, const char*, | |
387 | Command_line*) | |
388 | { | |
389 | this->discard_locals_ = DISCARD_NONE; | |
390 | } | |
391 | ||
8c21d9d3 CC |
392 | void |
393 | General_options::parse_incremental(const char*, const char*, | |
bbc5ae17 | 394 | Command_line*) |
8c21d9d3 CC |
395 | { |
396 | this->incremental_mode_ = INCREMENTAL_AUTO; | |
397 | } | |
398 | ||
399 | void | |
400 | General_options::parse_no_incremental(const char*, const char*, | |
bbc5ae17 | 401 | Command_line*) |
8c21d9d3 CC |
402 | { |
403 | this->incremental_mode_ = INCREMENTAL_OFF; | |
404 | } | |
405 | ||
406 | void | |
407 | General_options::parse_incremental_full(const char*, const char*, | |
408 | Command_line*) | |
409 | { | |
410 | this->incremental_mode_ = INCREMENTAL_FULL; | |
411 | } | |
412 | ||
413 | void | |
414 | General_options::parse_incremental_update(const char*, const char*, | |
415 | Command_line*) | |
416 | { | |
417 | this->incremental_mode_ = INCREMENTAL_UPDATE; | |
418 | } | |
419 | ||
266d0a74 ILT |
420 | void |
421 | General_options::parse_incremental_changed(const char*, const char*, | |
bbc5ae17 | 422 | Command_line*) |
266d0a74 ILT |
423 | { |
424 | this->implicit_incremental_ = true; | |
425 | this->incremental_disposition_ = INCREMENTAL_CHANGED; | |
426 | } | |
427 | ||
428 | void | |
429 | General_options::parse_incremental_unchanged(const char*, const char*, | |
bbc5ae17 | 430 | Command_line*) |
266d0a74 ILT |
431 | { |
432 | this->implicit_incremental_ = true; | |
433 | this->incremental_disposition_ = INCREMENTAL_UNCHANGED; | |
434 | } | |
435 | ||
436 | void | |
437 | General_options::parse_incremental_unknown(const char*, const char*, | |
bbc5ae17 | 438 | Command_line*) |
266d0a74 ILT |
439 | { |
440 | this->implicit_incremental_ = true; | |
441 | this->incremental_disposition_ = INCREMENTAL_CHECK; | |
442 | } | |
443 | ||
221597a5 CC |
444 | void |
445 | General_options::parse_incremental_startup_unchanged(const char*, const char*, | |
446 | Command_line*) | |
447 | { | |
448 | this->implicit_incremental_ = true; | |
449 | this->incremental_startup_disposition_ = INCREMENTAL_UNCHANGED; | |
450 | } | |
451 | ||
ee1fe73e ILT |
452 | void |
453 | General_options::parse_library(const char*, const char* arg, | |
bbc5ae17 | 454 | Command_line* cmdline) |
ee1fe73e | 455 | { |
ae3b5189 | 456 | Input_file_argument::Input_file_type type; |
ca09d69a | 457 | const char* name; |
ae3b5189 CD |
458 | if (arg[0] == ':') |
459 | { | |
460 | type = Input_file_argument::INPUT_FILE_TYPE_SEARCHED_FILE; | |
461 | name = arg + 1; | |
462 | } | |
463 | else | |
464 | { | |
465 | type = Input_file_argument::INPUT_FILE_TYPE_LIBRARY; | |
466 | name = arg; | |
467 | } | |
468 | Input_file_argument file(name, type, "", false, *this); | |
ee1fe73e ILT |
469 | cmdline->inputs().add_file(file); |
470 | } | |
471 | ||
89fc3421 CC |
472 | void |
473 | General_options::parse_plugin(const char*, const char* arg, | |
bbc5ae17 | 474 | Command_line*) |
89fc3421 CC |
475 | { |
476 | this->add_plugin(arg); | |
477 | } | |
4674ecfc CC |
478 | |
479 | // Parse --plugin-opt. | |
480 | ||
481 | void | |
482 | General_options::parse_plugin_opt(const char*, const char* arg, | |
bbc5ae17 | 483 | Command_line*) |
4674ecfc CC |
484 | { |
485 | this->add_plugin_option(arg); | |
486 | } | |
89fc3421 | 487 | |
afd2ea23 AM |
488 | void |
489 | General_options::parse_no_power10_stubs(const char*, const char*, | |
490 | Command_line*) | |
491 | { | |
492 | this->set_power10_stubs("no"); | |
493 | this->set_user_set_power10_stubs(); | |
494 | } | |
495 | ||
ee1fe73e ILT |
496 | void |
497 | General_options::parse_R(const char* option, const char* arg, | |
bbc5ae17 | 498 | Command_line* cmdline) |
88dd47ac | 499 | { |
88dd47ac | 500 | struct stat s; |
ee1fe73e ILT |
501 | if (::stat(arg, &s) != 0 || S_ISDIR(s.st_mode)) |
502 | this->add_to_rpath(arg); | |
88dd47ac | 503 | else |
ee1fe73e | 504 | this->parse_just_symbols(option, arg, cmdline); |
88dd47ac ILT |
505 | } |
506 | ||
ee1fe73e ILT |
507 | void |
508 | General_options::parse_just_symbols(const char*, const char* arg, | |
bbc5ae17 | 509 | Command_line* cmdline) |
88dd47ac | 510 | { |
ae3b5189 CD |
511 | Input_file_argument file(arg, Input_file_argument::INPUT_FILE_TYPE_FILE, |
512 | "", true, *this); | |
ee1fe73e | 513 | cmdline->inputs().add_file(file); |
88dd47ac ILT |
514 | } |
515 | ||
a192ba05 ILT |
516 | // Handle --section-start. |
517 | ||
518 | void | |
519 | General_options::parse_section_start(const char*, const char* arg, | |
520 | Command_line*) | |
521 | { | |
522 | const char* eq = strchr(arg, '='); | |
523 | if (eq == NULL) | |
524 | { | |
525 | gold_error(_("invalid argument to --section-start; " | |
526 | "must be SECTION=ADDRESS")); | |
527 | return; | |
528 | } | |
529 | ||
530 | std::string section_name(arg, eq - arg); | |
531 | ||
532 | ++eq; | |
533 | const char* val_start = eq; | |
534 | if (eq[0] == '0' && (eq[1] == 'x' || eq[1] == 'X')) | |
535 | eq += 2; | |
536 | if (*eq == '\0') | |
537 | { | |
538 | gold_error(_("--section-start address missing")); | |
539 | return; | |
540 | } | |
541 | uint64_t addr = 0; | |
542 | hex_init(); | |
543 | for (; *eq != '\0'; ++eq) | |
544 | { | |
545 | if (!hex_p(*eq)) | |
546 | { | |
547 | gold_error(_("--section-start argument %s is not a valid hex number"), | |
548 | val_start); | |
549 | return; | |
550 | } | |
551 | addr <<= 4; | |
552 | addr += hex_value(*eq); | |
553 | } | |
554 | ||
555 | this->section_starts_[section_name] = addr; | |
556 | } | |
557 | ||
558 | // Look up a --section-start value. | |
559 | ||
560 | bool | |
561 | General_options::section_start(const char* secname, uint64_t* paddr) const | |
562 | { | |
563 | if (this->section_starts_.empty()) | |
564 | return false; | |
565 | std::map<std::string, uint64_t>::const_iterator p = | |
566 | this->section_starts_.find(secname); | |
567 | if (p == this->section_starts_.end()) | |
568 | return false; | |
569 | *paddr = p->second; | |
570 | return true; | |
571 | } | |
572 | ||
ee1fe73e ILT |
573 | void |
574 | General_options::parse_static(const char*, const char*, Command_line*) | |
3c2fafa5 | 575 | { |
ee1fe73e | 576 | this->set_static(true); |
09124467 ILT |
577 | } |
578 | ||
ee1fe73e ILT |
579 | void |
580 | General_options::parse_script(const char*, const char* arg, | |
bbc5ae17 | 581 | Command_line* cmdline) |
09124467 | 582 | { |
ee1fe73e ILT |
583 | if (!read_commandline_script(arg, cmdline)) |
584 | gold::gold_fatal(_("unable to parse script file %s"), arg); | |
61ba1cf9 ILT |
585 | } |
586 | ||
ee1fe73e ILT |
587 | void |
588 | General_options::parse_version_script(const char*, const char* arg, | |
bbc5ae17 | 589 | Command_line* cmdline) |
ead1e424 | 590 | { |
ee1fe73e ILT |
591 | if (!read_version_script(arg, cmdline)) |
592 | gold::gold_fatal(_("unable to parse version script file %s"), arg); | |
ead1e424 ILT |
593 | } |
594 | ||
c82fbeee CS |
595 | void |
596 | General_options::parse_dynamic_list(const char*, const char* arg, | |
bbc5ae17 | 597 | Command_line* cmdline) |
c82fbeee CS |
598 | { |
599 | if (!read_dynamic_list(arg, cmdline, &this->dynamic_list_)) | |
600 | gold::gold_fatal(_("unable to parse dynamic-list script file %s"), arg); | |
fd834e57 | 601 | this->have_dynamic_list_ = true; |
c82fbeee CS |
602 | } |
603 | ||
ee1fe73e ILT |
604 | void |
605 | General_options::parse_start_group(const char*, const char*, | |
bbc5ae17 | 606 | Command_line* cmdline) |
ee1fe73e ILT |
607 | { |
608 | cmdline->inputs().start_group(); | |
609 | } | |
ead1e424 | 610 | |
ee1fe73e ILT |
611 | void |
612 | General_options::parse_end_group(const char*, const char*, | |
bbc5ae17 | 613 | Command_line* cmdline) |
ead1e424 | 614 | { |
ee1fe73e | 615 | cmdline->inputs().end_group(); |
ead1e424 ILT |
616 | } |
617 | ||
b0193076 RÁE |
618 | void |
619 | General_options::parse_start_lib(const char*, const char*, | |
bbc5ae17 | 620 | Command_line* cmdline) |
b0193076 RÁE |
621 | { |
622 | cmdline->inputs().start_lib(cmdline->position_dependent_options()); | |
623 | } | |
624 | ||
625 | void | |
626 | General_options::parse_end_lib(const char*, const char*, | |
bbc5ae17 | 627 | Command_line* cmdline) |
b0193076 RÁE |
628 | { |
629 | cmdline->inputs().end_lib(); | |
630 | } | |
631 | ||
65514900 | 632 | // The function add_excluded_libs() in ld/ldlang.c of GNU ld breaks up a list |
9b547ce6 | 633 | // of names separated by commas or colons and puts them in a linked list. |
65514900 CC |
634 | // We implement the same parsing of names here but store names in an unordered |
635 | // map to speed up searching of names. | |
636 | ||
637 | void | |
638 | General_options::parse_exclude_libs(const char*, const char* arg, | |
bbc5ae17 | 639 | Command_line*) |
65514900 | 640 | { |
ca09d69a | 641 | const char* p = arg; |
65514900 CC |
642 | |
643 | while (*p != '\0') | |
644 | { | |
645 | size_t length = strcspn(p, ",:"); | |
646 | this->excluded_libs_.insert(std::string(p, length)); | |
647 | p += (p[length] ? length + 1 : length); | |
648 | } | |
649 | } | |
650 | ||
651 | // The checking logic is based on the function check_excluded_libs() in | |
652 | // ld/ldlang.c of GNU ld but our implementation is different because we use | |
653 | // an unordered map instead of a linked list, which is what GNU ld uses. GNU | |
654 | // ld searches sequentially in the excluded libs list. For a given archive, | |
655 | // a match is found if the archive's name matches exactly one of the list | |
656 | // entry or if the archive's name is of the form FOO.a and FOO matches exactly | |
657 | // one of the list entry. An entry "ALL" in the list is considered as a | |
658 | // wild-card and matches any given name. | |
659 | ||
660 | bool | |
ca09d69a | 661 | General_options::check_excluded_libs(const std::string &name) const |
65514900 CC |
662 | { |
663 | Unordered_set<std::string>::const_iterator p; | |
664 | ||
665 | // Exit early for the most common case. | |
666 | if (excluded_libs_.empty()) | |
667 | return false; | |
668 | ||
669 | // If we see "ALL", all archives are excluded from automatic export. | |
670 | p = excluded_libs_.find(std::string("ALL")); | |
671 | if (p != excluded_libs_.end()) | |
672 | return true; | |
673 | ||
2fdd743f | 674 | // First strip off any directories in name. |
ca09d69a | 675 | const char* basename = lbasename(name.c_str()); |
2fdd743f | 676 | |
65514900 | 677 | // Try finding an exact match. |
2fdd743f | 678 | p = excluded_libs_.find(std::string(basename)); |
65514900 CC |
679 | if (p != excluded_libs_.end()) |
680 | return true; | |
681 | ||
682 | // Try matching NAME without ".a" at the end. | |
2fdd743f | 683 | size_t length = strlen(basename); |
65514900 | 684 | if ((length >= 2) |
2fdd743f DK |
685 | && (basename[length - 2] == '.') |
686 | && (basename[length - 1] == 'a')) | |
65514900 | 687 | { |
2fdd743f | 688 | p = excluded_libs_.find(std::string(basename, length - 2)); |
65514900 CC |
689 | if (p != excluded_libs_.end()) |
690 | return true; | |
691 | } | |
692 | ||
693 | return false; | |
694 | } | |
695 | ||
e6a307ba ILT |
696 | // Recognize input and output target names. The GNU linker accepts |
697 | // these with --format and --oformat. This code is intended to be | |
698 | // minimally compatible. In practice for an ELF target this would be | |
699 | // the same target as the input files; that name always start with | |
700 | // "elf". Non-ELF targets would be "srec", "symbolsrec", "tekhex", | |
701 | // "binary", "ihex". | |
702 | ||
703 | General_options::Object_format | |
704 | General_options::string_to_object_format(const char* arg) | |
705 | { | |
956b03bb | 706 | if (strncmp(arg, "elf", 3) == 0 || strcmp(arg, "default") == 0) |
e6a307ba ILT |
707 | return gold::General_options::OBJECT_FORMAT_ELF; |
708 | else if (strcmp(arg, "binary") == 0) | |
709 | return gold::General_options::OBJECT_FORMAT_BINARY; | |
710 | else | |
711 | { | |
712 | gold::gold_error(_("format '%s' not supported; treating as elf " | |
bbc5ae17 RM |
713 | "(supported formats: elf, binary)"), |
714 | arg); | |
e6a307ba ILT |
715 | return gold::General_options::OBJECT_FORMAT_ELF; |
716 | } | |
717 | } | |
718 | ||
376c3ecd CC |
719 | const char* |
720 | General_options::object_format_to_string(General_options::Object_format fmt) | |
721 | { | |
722 | switch (fmt) | |
723 | { | |
724 | case General_options::OBJECT_FORMAT_ELF: | |
725 | return "elf"; | |
726 | case General_options::OBJECT_FORMAT_BINARY: | |
727 | return "binary"; | |
728 | default: | |
729 | gold_unreachable(); | |
730 | } | |
731 | } | |
732 | ||
9b2fd367 DK |
733 | void |
734 | General_options::parse_fix_v4bx(const char*, const char*, | |
bbc5ae17 | 735 | Command_line*) |
9b2fd367 DK |
736 | { |
737 | this->fix_v4bx_ = FIX_V4BX_REPLACE; | |
738 | } | |
739 | ||
740 | void | |
741 | General_options::parse_fix_v4bx_interworking(const char*, const char*, | |
742 | Command_line*) | |
743 | { | |
744 | this->fix_v4bx_ = FIX_V4BX_INTERWORKING; | |
745 | } | |
746 | ||
7296d933 DK |
747 | void |
748 | General_options::parse_EB(const char*, const char*, Command_line*) | |
749 | { | |
750 | this->endianness_ = ENDIANNESS_BIG; | |
751 | } | |
752 | ||
753 | void | |
754 | General_options::parse_EL(const char*, const char*, Command_line*) | |
755 | { | |
756 | this->endianness_ = ENDIANNESS_LITTLE; | |
757 | } | |
758 | ||
376c3ecd CC |
759 | void |
760 | General_options::copy_from_posdep_options( | |
761 | const Position_dependent_options& posdep) | |
762 | { | |
763 | this->set_as_needed(posdep.as_needed()); | |
764 | this->set_Bdynamic(posdep.Bdynamic()); | |
765 | this->set_format( | |
766 | General_options::object_format_to_string(posdep.format_enum())); | |
767 | this->set_whole_archive(posdep.whole_archive()); | |
768 | this->set_incremental_disposition(posdep.incremental_disposition()); | |
769 | } | |
770 | ||
771 | void | |
772 | General_options::parse_push_state(const char*, const char*, Command_line*) | |
773 | { | |
774 | Position_dependent_options* posdep = new Position_dependent_options(*this); | |
775 | this->options_stack_.push_back(posdep); | |
776 | } | |
777 | ||
778 | void | |
779 | General_options::parse_pop_state(const char*, const char*, Command_line*) | |
780 | { | |
781 | if (this->options_stack_.empty()) | |
782 | { | |
783 | gold::gold_error(_("unbalanced --push-state/--pop-state")); | |
784 | return; | |
785 | } | |
786 | Position_dependent_options* posdep = this->options_stack_.back(); | |
787 | this->options_stack_.pop_back(); | |
788 | this->copy_from_posdep_options(*posdep); | |
789 | delete posdep; | |
790 | } | |
791 | ||
ee1fe73e | 792 | } // End namespace gold. |
bae7f79e | 793 | |
ee1fe73e | 794 | namespace |
bae7f79e | 795 | { |
bae7f79e | 796 | |
ee1fe73e ILT |
797 | void |
798 | usage() | |
799 | { | |
800 | fprintf(stderr, | |
bbc5ae17 RM |
801 | _("%s: use the --help option for usage information\n"), |
802 | gold::program_name); | |
ee1fe73e ILT |
803 | ::exit(EXIT_FAILURE); |
804 | } | |
bae7f79e | 805 | |
ee1fe73e | 806 | void |
ca09d69a | 807 | usage(const char* msg, const char* opt) |
ee1fe73e ILT |
808 | { |
809 | fprintf(stderr, | |
bbc5ae17 RM |
810 | _("%s: %s: %s\n"), |
811 | gold::program_name, opt, msg); | |
ee1fe73e | 812 | usage(); |
bae7f79e ILT |
813 | } |
814 | ||
ad2d6943 ILT |
815 | // If the default sysroot is relocatable, try relocating it based on |
816 | // the prefix FROM. | |
817 | ||
fd9d194f | 818 | static char* |
ad2d6943 ILT |
819 | get_relative_sysroot(const char* from) |
820 | { | |
821 | char* path = make_relative_prefix(gold::program_name, from, | |
bbc5ae17 | 822 | TARGET_SYSTEM_ROOT); |
ad2d6943 ILT |
823 | if (path != NULL) |
824 | { | |
825 | struct stat s; | |
826 | if (::stat(path, &s) == 0 && S_ISDIR(s.st_mode)) | |
bbc5ae17 | 827 | return path; |
ad2d6943 ILT |
828 | free(path); |
829 | } | |
830 | ||
831 | return NULL; | |
832 | } | |
833 | ||
834 | // Return the default sysroot. This is set by the --with-sysroot | |
ee1fe73e ILT |
835 | // option to configure. Note we do not free the return value of |
836 | // get_relative_sysroot, which is a small memory leak, but is | |
837 | // necessary since we store this pointer directly in General_options. | |
ad2d6943 | 838 | |
fd9d194f | 839 | static const char* |
ad2d6943 ILT |
840 | get_default_sysroot() |
841 | { | |
842 | const char* sysroot = TARGET_SYSTEM_ROOT; | |
843 | if (*sysroot == '\0') | |
ee1fe73e | 844 | return NULL; |
ad2d6943 ILT |
845 | |
846 | if (TARGET_SYSTEM_ROOT_RELOCATABLE) | |
847 | { | |
ee1fe73e | 848 | char* path = get_relative_sysroot(BINDIR); |
ad2d6943 | 849 | if (path == NULL) |
bbc5ae17 | 850 | path = get_relative_sysroot(TOOLBINDIR); |
ad2d6943 | 851 | if (path != NULL) |
bbc5ae17 | 852 | return path; |
ad2d6943 ILT |
853 | } |
854 | ||
855 | return sysroot; | |
856 | } | |
857 | ||
ee1fe73e ILT |
858 | // Parse a long option. Such options have the form |
859 | // <-|--><option>[=arg]. If "=arg" is not present but the option | |
860 | // takes an argument, the next word is taken to the be the argument. | |
861 | // If equals_only is set, then only the <option>=<arg> form is | |
862 | // accepted, not the <option><space><arg> form. Returns a One_option | |
863 | // struct or NULL if argv[i] cannot be parsed as a long option. In | |
864 | // the not-NULL case, *arg is set to the option's argument (NULL if | |
865 | // the option takes no argument), and *i is advanced past this option. | |
866 | // NOTE: it is safe for argv and arg to point to the same place. | |
867 | gold::options::One_option* | |
868 | parse_long_option(int argc, const char** argv, bool equals_only, | |
bbc5ae17 | 869 | const char** arg, int* i) |
61ba1cf9 | 870 | { |
ee1fe73e | 871 | const char* const this_argv = argv[*i]; |
bae7f79e | 872 | |
ee1fe73e ILT |
873 | const char* equals = strchr(this_argv, '='); |
874 | const char* option_start = this_argv + strspn(this_argv, "-"); | |
875 | std::string option(option_start, | |
bbc5ae17 | 876 | equals ? equals - option_start : strlen(option_start)); |
35cdfc9a | 877 | |
ee1fe73e ILT |
878 | gold::options::Option_map::iterator it |
879 | = gold::options::long_options->find(option); | |
880 | if (it == gold::options::long_options->end()) | |
881 | return NULL; | |
35cdfc9a | 882 | |
ee1fe73e | 883 | gold::options::One_option* retval = it->second; |
c7912668 | 884 | |
ee1fe73e ILT |
885 | // If the dash-count doesn't match, we fail. |
886 | if (this_argv[0] != '-') // no dashes at all: had better be "-z <longopt>" | |
887 | { | |
888 | if (retval->dashes != gold::options::DASH_Z) | |
bbc5ae17 | 889 | return NULL; |
ee1fe73e ILT |
890 | } |
891 | else if (this_argv[1] != '-') // one dash | |
892 | { | |
893 | if (retval->dashes != gold::options::ONE_DASH | |
bbc5ae17 RM |
894 | && retval->dashes != gold::options::EXACTLY_ONE_DASH |
895 | && retval->dashes != gold::options::TWO_DASHES) | |
896 | return NULL; | |
ee1fe73e ILT |
897 | } |
898 | else // two dashes (or more!) | |
899 | { | |
900 | if (retval->dashes != gold::options::TWO_DASHES | |
bbc5ae17 RM |
901 | && retval->dashes != gold::options::EXACTLY_TWO_DASHES |
902 | && retval->dashes != gold::options::ONE_DASH) | |
903 | return NULL; | |
ee1fe73e | 904 | } |
bae7f79e | 905 | |
ee1fe73e ILT |
906 | // Now that we know the option is good (or else bad in a way that |
907 | // will cause us to die), increment i to point past this argv. | |
908 | ++(*i); | |
bae7f79e | 909 | |
ee1fe73e ILT |
910 | // Figure out the option's argument, if any. |
911 | if (!retval->takes_argument()) | |
912 | { | |
913 | if (equals) | |
bbc5ae17 | 914 | usage(_("unexpected argument"), this_argv); |
ee1fe73e | 915 | else |
bbc5ae17 | 916 | *arg = NULL; |
ee1fe73e ILT |
917 | } |
918 | else | |
919 | { | |
920 | if (equals) | |
bbc5ae17 | 921 | *arg = equals + 1; |
086a1841 ILT |
922 | else if (retval->takes_optional_argument()) |
923 | *arg = retval->default_value; | |
ee1fe73e | 924 | else if (*i < argc && !equals_only) |
bbc5ae17 | 925 | *arg = argv[(*i)++]; |
ee1fe73e | 926 | else |
bbc5ae17 | 927 | usage(_("missing argument"), this_argv); |
ee1fe73e | 928 | } |
516cb3d0 | 929 | |
ee1fe73e ILT |
930 | return retval; |
931 | } | |
932 | ||
933 | // Parse a short option. Such options have the form -<option>[arg]. | |
934 | // If "arg" is not present but the option takes an argument, the next | |
935 | // word is taken to the be the argument. If the option does not take | |
936 | // an argument, it may be followed by another short option. Returns a | |
937 | // One_option struct or NULL if argv[i] cannot be parsed as a short | |
938 | // option. In the not-NULL case, *arg is set to the option's argument | |
939 | // (NULL if the option takes no argument), and *i is advanced past | |
940 | // this option. This function keeps *i the same if we parsed a short | |
941 | // option that does not take an argument, that looks to be followed by | |
942 | // another short option in the same word. | |
943 | gold::options::One_option* | |
944 | parse_short_option(int argc, const char** argv, int pos_in_argv_i, | |
bbc5ae17 | 945 | const char** arg, int* i) |
ee1fe73e ILT |
946 | { |
947 | const char* const this_argv = argv[*i]; | |
948 | ||
949 | if (this_argv[0] != '-') | |
950 | return NULL; | |
951 | ||
952 | // We handle -z as a special case. | |
953 | static gold::options::One_option dash_z("", gold::options::DASH_Z, | |
bbc5ae17 | 954 | 'z', "", NULL, "Z-OPTION", false, |
358a9718 | 955 | NULL, false); |
ee1fe73e ILT |
956 | gold::options::One_option* retval = NULL; |
957 | if (this_argv[pos_in_argv_i] == 'z') | |
958 | retval = &dash_z; | |
959 | else | |
960 | { | |
961 | const int char_as_int = static_cast<int>(this_argv[pos_in_argv_i]); | |
962 | if (char_as_int > 0 && char_as_int < 128) | |
bbc5ae17 | 963 | retval = gold::options::short_options[char_as_int]; |
ee1fe73e | 964 | } |
516cb3d0 | 965 | |
ee1fe73e ILT |
966 | if (retval == NULL) |
967 | return NULL; | |
35cdfc9a | 968 | |
ee1fe73e ILT |
969 | // Figure out the option's argument, if any. |
970 | if (!retval->takes_argument()) | |
cd72c291 | 971 | { |
ee1fe73e ILT |
972 | *arg = NULL; |
973 | // We only advance past this argument if it's the only one in argv. | |
974 | if (this_argv[pos_in_argv_i + 1] == '\0') | |
bbc5ae17 | 975 | ++(*i); |
cd72c291 ILT |
976 | } |
977 | else | |
ee1fe73e ILT |
978 | { |
979 | // If we take an argument, we'll eat up this entire argv entry. | |
980 | ++(*i); | |
981 | if (this_argv[pos_in_argv_i + 1] != '\0') | |
bbc5ae17 | 982 | *arg = this_argv + pos_in_argv_i + 1; |
086a1841 ILT |
983 | else if (retval->takes_optional_argument()) |
984 | *arg = retval->default_value; | |
ee1fe73e | 985 | else if (*i < argc) |
bbc5ae17 | 986 | *arg = argv[(*i)++]; |
ee1fe73e | 987 | else |
bbc5ae17 | 988 | usage(_("missing argument"), this_argv); |
ee1fe73e | 989 | } |
cd72c291 | 990 | |
ee1fe73e ILT |
991 | // If we're a -z option, we need to parse our argument as a |
992 | // long-option, e.g. "-z stacksize=8192". | |
993 | if (retval == &dash_z) | |
35cdfc9a | 994 | { |
ee1fe73e ILT |
995 | int dummy_i = 0; |
996 | const char* dash_z_arg = *arg; | |
997 | retval = parse_long_option(1, arg, true, arg, &dummy_i); | |
998 | if (retval == NULL) | |
bbc5ae17 | 999 | usage(_("unknown -z option"), dash_z_arg); |
35cdfc9a ILT |
1000 | } |
1001 | ||
ee1fe73e | 1002 | return retval; |
c7912668 ILT |
1003 | } |
1004 | ||
ee1fe73e | 1005 | } // End anonymous namespace. |
c7912668 | 1006 | |
ee1fe73e | 1007 | namespace gold |
c7912668 | 1008 | { |
c7912668 | 1009 | |
ee1fe73e | 1010 | General_options::General_options() |
7c96e612 AM |
1011 | : bsymbolic_(BSYMBOLIC_NONE), |
1012 | printed_version_(false), | |
a192ba05 ILT |
1013 | execstack_status_(EXECSTACK_FROM_INPUT), |
1014 | icf_status_(ICF_NONE), | |
1015 | static_(false), | |
1016 | do_demangle_(false), | |
1017 | plugins_(NULL), | |
1018 | dynamic_list_(), | |
fd834e57 | 1019 | have_dynamic_list_(false), |
8c21d9d3 | 1020 | incremental_mode_(INCREMENTAL_OFF), |
221597a5 CC |
1021 | incremental_disposition_(INCREMENTAL_STARTUP), |
1022 | incremental_startup_disposition_(INCREMENTAL_CHECK), | |
a192ba05 ILT |
1023 | implicit_incremental_(false), |
1024 | excluded_libs_(), | |
1025 | symbols_to_retain_(), | |
2fd9ae7a | 1026 | section_starts_(), |
7296d933 | 1027 | fix_v4bx_(FIX_V4BX_NONE), |
cd3c333f | 1028 | endianness_(ENDIANNESS_NOT_SET), |
591be3e4 | 1029 | discard_locals_(DISCARD_SEC_MERGE), |
cae64165 RM |
1030 | orphan_handling_enum_(ORPHAN_PLACE), |
1031 | start_stop_visibility_enum_(elfcpp::STV_PROTECTED) | |
ee1fe73e | 1032 | { |
293c1386 CC |
1033 | // Turn off option registration once construction is complete. |
1034 | gold::options::ready_to_register = false; | |
ee1fe73e ILT |
1035 | } |
1036 | ||
1037 | General_options::Object_format | |
1038 | General_options::format_enum() const | |
1039 | { | |
e6a307ba | 1040 | return General_options::string_to_object_format(this->format()); |
ee1fe73e ILT |
1041 | } |
1042 | ||
1043 | General_options::Object_format | |
1044 | General_options::oformat_enum() const | |
1045 | { | |
e6a307ba | 1046 | return General_options::string_to_object_format(this->oformat()); |
35cdfc9a ILT |
1047 | } |
1048 | ||
ad2d6943 ILT |
1049 | // Add the sysroot, if any, to the search paths. |
1050 | ||
1051 | void | |
1052 | General_options::add_sysroot() | |
1053 | { | |
ee1fe73e | 1054 | if (this->sysroot() == NULL || this->sysroot()[0] == '\0') |
ad2d6943 | 1055 | { |
ee1fe73e ILT |
1056 | this->set_sysroot(get_default_sysroot()); |
1057 | if (this->sysroot() == NULL || this->sysroot()[0] == '\0') | |
bbc5ae17 | 1058 | return; |
ad2d6943 ILT |
1059 | } |
1060 | ||
ee1fe73e | 1061 | char* canonical_sysroot = lrealpath(this->sysroot()); |
ad2d6943 | 1062 | |
ee1fe73e ILT |
1063 | for (Dir_list::iterator p = this->library_path_.value.begin(); |
1064 | p != this->library_path_.value.end(); | |
ad2d6943 | 1065 | ++p) |
ee1fe73e | 1066 | p->add_sysroot(this->sysroot(), canonical_sysroot); |
ad2d6943 ILT |
1067 | |
1068 | free(canonical_sysroot); | |
1069 | } | |
1070 | ||
fd9d194f ILT |
1071 | // Return whether FILENAME is in a system directory. |
1072 | ||
1073 | bool | |
1074 | General_options::is_in_system_directory(const std::string& filename) const | |
1075 | { | |
1076 | for (Dir_list::const_iterator p = this->library_path_.value.begin(); | |
1077 | p != this->library_path_.value.end(); | |
1078 | ++p) | |
1079 | { | |
1080 | // We use a straight string comparison rather than calling | |
1081 | // FILENAME_CMP because we are only interested in the cases | |
1082 | // where we found the file in a system directory, which means | |
1083 | // that we used the directory name as a prefix for a -L search. | |
1084 | if (p->is_system_directory() | |
1085 | && filename.compare(0, p->name().size(), p->name()) == 0) | |
1086 | return true; | |
1087 | } | |
1088 | return false; | |
1089 | } | |
1090 | ||
4674ecfc | 1091 | // Add a plugin to the list of plugins. |
89fc3421 CC |
1092 | |
1093 | void | |
4674ecfc | 1094 | General_options::add_plugin(const char* filename) |
89fc3421 CC |
1095 | { |
1096 | if (this->plugins_ == NULL) | |
1097 | this->plugins_ = new Plugin_manager(*this); | |
4674ecfc CC |
1098 | this->plugins_->add_plugin(filename); |
1099 | } | |
1100 | ||
1101 | // Add a plugin option to a plugin. | |
1102 | ||
1103 | void | |
1104 | General_options::add_plugin_option(const char* arg) | |
1105 | { | |
1106 | if (this->plugins_ == NULL) | |
1107 | gold_fatal("--plugin-opt requires --plugin."); | |
1108 | this->plugins_->add_plugin_option(arg); | |
89fc3421 CC |
1109 | } |
1110 | ||
ee1fe73e ILT |
1111 | // Set up variables and other state that isn't set up automatically by |
1112 | // the parse routine, and ensure options don't contradict each other | |
1113 | // and are otherwise kosher. | |
e5756efb | 1114 | |
ee1fe73e ILT |
1115 | void |
1116 | General_options::finalize() | |
bc644c6c | 1117 | { |
ee1fe73e | 1118 | // Normalize the strip modifiers. They have a total order: |
62b01cb5 ILT |
1119 | // strip_all > strip_debug > strip_non_line > strip_debug_gdb. |
1120 | // If one is true, set all beneath it to true as well. | |
ee1fe73e ILT |
1121 | if (this->strip_all()) |
1122 | this->set_strip_debug(true); | |
1123 | if (this->strip_debug()) | |
62b01cb5 ILT |
1124 | this->set_strip_debug_non_line(true); |
1125 | if (this->strip_debug_non_line()) | |
ee1fe73e | 1126 | this->set_strip_debug_gdb(true); |
bc644c6c | 1127 | |
3b293544 CF |
1128 | if (this->Bshareable()) |
1129 | this->set_shared(true); | |
1130 | ||
ee1fe73e ILT |
1131 | // If the user specifies both -s and -r, convert the -s to -S. |
1132 | // -r requires us to keep externally visible symbols! | |
1133 | if (this->strip_all() && this->relocatable()) | |
1134 | { | |
1135 | this->set_strip_all(false); | |
1136 | gold_assert(this->strip_debug()); | |
1137 | } | |
bc644c6c | 1138 | |
ee1fe73e ILT |
1139 | // For us, -dc and -dp are synonyms for --define-common. |
1140 | if (this->dc()) | |
1141 | this->set_define_common(true); | |
1142 | if (this->dp()) | |
1143 | this->set_define_common(true); | |
1144 | ||
1145 | // We also set --define-common if we're not relocatable, as long as | |
1146 | // the user didn't explicitly ask for something different. | |
1147 | if (!this->user_set_define_common()) | |
1148 | this->set_define_common(!this->relocatable()); | |
1149 | ||
1150 | // execstack_status_ is a three-state variable; update it based on | |
1151 | // -z [no]execstack. | |
1152 | if (this->execstack()) | |
1153 | this->set_execstack_status(EXECSTACK_YES); | |
1154 | else if (this->noexecstack()) | |
1155 | this->set_execstack_status(EXECSTACK_NO); | |
1156 | ||
032ce4e9 ST |
1157 | // icf_status_ is a three-state variable; update it based on the |
1158 | // value of this->icf(). | |
1159 | if (strcmp(this->icf(), "none") == 0) | |
1160 | this->set_icf_status(ICF_NONE); | |
1161 | else if (strcmp(this->icf(), "safe") == 0) | |
1162 | this->set_icf_status(ICF_SAFE); | |
1163 | else | |
1164 | this->set_icf_status(ICF_ALL); | |
1165 | ||
086a1841 ILT |
1166 | // Handle the optional argument for --demangle. |
1167 | if (this->user_set_demangle()) | |
1168 | { | |
1169 | this->set_do_demangle(true); | |
1170 | const char* style = this->demangle(); | |
1171 | if (*style != '\0') | |
1172 | { | |
1173 | enum demangling_styles style_code; | |
1174 | ||
1175 | style_code = cplus_demangle_name_to_style(style); | |
1176 | if (style_code == unknown_demangling) | |
1177 | gold_fatal("unknown demangling style '%s'", style); | |
1178 | cplus_demangle_set_style(style_code); | |
1179 | } | |
1180 | } | |
1181 | else if (this->user_set_no_demangle()) | |
1182 | this->set_do_demangle(false); | |
1183 | else | |
1184 | { | |
1185 | // Testing COLLECT_NO_DEMANGLE makes our default demangling | |
1186 | // behaviour identical to that of gcc's linker wrapper. | |
1187 | this->set_do_demangle(getenv("COLLECT_NO_DEMANGLE") == NULL); | |
1188 | } | |
1189 | ||
591be3e4 CC |
1190 | // Parse the --orphan-handling argument. |
1191 | if (this->user_set_orphan_handling()) | |
1192 | { | |
1193 | if (strcmp(this->orphan_handling(), "place") == 0) | |
1194 | this->set_orphan_handling_enum(ORPHAN_PLACE); | |
1195 | else if (strcmp(this->orphan_handling(), "discard") == 0) | |
1196 | this->set_orphan_handling_enum(ORPHAN_DISCARD); | |
1197 | else if (strcmp(this->orphan_handling(), "warn") == 0) | |
1198 | this->set_orphan_handling_enum(ORPHAN_WARN); | |
1199 | else if (strcmp(this->orphan_handling(), "error") == 0) | |
1200 | this->set_orphan_handling_enum(ORPHAN_ERROR); | |
1201 | } | |
1202 | ||
cae64165 RM |
1203 | // Parse the -z start-stop-visibility argument. |
1204 | if (this->user_set_start_stop_visibility()) | |
1205 | { | |
1206 | if (strcmp(this->start_stop_visibility(), "default") == 0) | |
1207 | this->set_start_stop_visibility_enum(elfcpp::STV_DEFAULT); | |
1208 | else if (strcmp(this->start_stop_visibility(), "internal") == 0) | |
1209 | this->set_start_stop_visibility_enum(elfcpp::STV_INTERNAL); | |
1210 | else if (strcmp(this->start_stop_visibility(), "hidden") == 0) | |
1211 | this->set_start_stop_visibility_enum(elfcpp::STV_HIDDEN); | |
1212 | else if (strcmp(this->start_stop_visibility(), "protected") == 0) | |
1213 | this->set_start_stop_visibility_enum(elfcpp::STV_PROTECTED); | |
1214 | } | |
1215 | ||
afd2ea23 AM |
1216 | // Parse the --power10-stubs argument. |
1217 | if (!this->user_set_power10_stubs()) | |
1218 | { | |
1219 | // --power10-stubs without an arg is equivalent to --power10-stubs=yes | |
1220 | // but not specifying --power10-stubs at all should be equivalent to | |
1221 | // --power10-stubs=auto. This doesn't fit into the notion of | |
1222 | // "default_value", used both as a static initializer and to provide | |
1223 | // a missing optional arg. Fix it here. | |
1224 | this->set_power10_stubs("auto"); | |
1225 | this->set_power10_stubs_enum(POWER10_STUBS_AUTO); | |
1226 | } | |
1227 | else | |
1228 | { | |
1229 | if (strcmp(this->power10_stubs(), "auto") == 0) | |
1230 | this->set_power10_stubs_enum(POWER10_STUBS_AUTO); | |
1231 | else if (strcmp(this->power10_stubs(), "no") == 0) | |
1232 | this->set_power10_stubs_enum(POWER10_STUBS_NO); | |
1233 | else if (strcmp(this->power10_stubs(), "yes") == 0) | |
1234 | this->set_power10_stubs_enum(POWER10_STUBS_YES); | |
1235 | } | |
1236 | ||
7d9e3d98 ILT |
1237 | // -M is equivalent to "-Map -". |
1238 | if (this->print_map() && !this->user_set_Map()) | |
1239 | { | |
1240 | this->set_Map("-"); | |
1241 | this->set_user_set_Map(); | |
1242 | } | |
1243 | ||
af6156ef ILT |
1244 | // Using -n or -N implies -static. |
1245 | if (this->nmagic() || this->omagic()) | |
1246 | this->set_static(true); | |
1247 | ||
ee1fe73e ILT |
1248 | // If --thread_count is specified, it applies to |
1249 | // --thread-count-{initial,middle,final}, though it doesn't override | |
1250 | // them. | |
1251 | if (this->thread_count() > 0 && this->thread_count_initial() == 0) | |
1252 | this->set_thread_count_initial(this->thread_count()); | |
1253 | if (this->thread_count() > 0 && this->thread_count_middle() == 0) | |
1254 | this->set_thread_count_middle(this->thread_count()); | |
1255 | if (this->thread_count() > 0 && this->thread_count_final() == 0) | |
1256 | this->set_thread_count_final(this->thread_count()); | |
1257 | ||
09ffbbe0 ILT |
1258 | // Let's warn if you set the thread-count but we're going to ignore it. |
1259 | #ifndef ENABLE_THREADS | |
1260 | if (this->threads()) | |
1261 | { | |
1262 | gold_warning(_("ignoring --threads: " | |
1263 | "%s was compiled without thread support"), | |
1264 | program_name); | |
1265 | this->set_threads(false); | |
1266 | } | |
1267 | if (this->thread_count() > 0 || this->thread_count_initial() > 0 | |
1268 | || this->thread_count_middle() > 0 || this->thread_count_final() > 0) | |
1269 | gold_warning(_("ignoring --thread-count: " | |
bbc5ae17 RM |
1270 | "%s was compiled without thread support"), |
1271 | program_name); | |
09ffbbe0 ILT |
1272 | #endif |
1273 | ||
24538276 CC |
1274 | #ifndef ENABLE_PLUGINS |
1275 | if (this->has_plugins()) | |
1276 | gold_fatal(_("cannot use --plugin: " | |
1277 | "%s was compiled without plugin support"), | |
1278 | program_name); | |
1279 | #endif | |
1280 | ||
3f3cddf1 | 1281 | std::string libpath; |
706e1f5e ILT |
1282 | if (this->user_set_Y()) |
1283 | { | |
3f3cddf1 ILT |
1284 | libpath = this->Y(); |
1285 | if (libpath.compare(0, 2, "P,") == 0) | |
1286 | libpath.erase(0, 2); | |
1287 | } | |
1288 | else if (!this->nostdlib()) | |
1289 | { | |
1290 | #ifndef NATIVE_LINKER | |
1291 | #define NATIVE_LINKER 0 | |
1292 | #endif | |
1293 | const char* p = LIB_PATH; | |
1294 | if (strcmp(p, "::DEFAULT::") != 0) | |
1295 | libpath = p; | |
1296 | else if (NATIVE_LINKER | |
1297 | || this->user_set_sysroot() | |
1298 | || *TARGET_SYSTEM_ROOT != '\0') | |
1299 | { | |
1300 | this->add_to_library_path_with_sysroot("/lib"); | |
1301 | this->add_to_library_path_with_sysroot("/usr/lib"); | |
1302 | } | |
1303 | else | |
1304 | this->add_to_library_path_with_sysroot(TOOLLIBDIR); | |
1305 | } | |
706e1f5e | 1306 | |
3f3cddf1 ILT |
1307 | if (!libpath.empty()) |
1308 | { | |
706e1f5e ILT |
1309 | size_t pos = 0; |
1310 | size_t next_pos; | |
1311 | do | |
1312 | { | |
3f3cddf1 | 1313 | next_pos = libpath.find(':', pos); |
706e1f5e ILT |
1314 | size_t len = (next_pos == std::string::npos |
1315 | ? next_pos | |
1316 | : next_pos - pos); | |
1317 | if (len != 0) | |
3f3cddf1 | 1318 | this->add_to_library_path_with_sysroot(libpath.substr(pos, len)); |
706e1f5e ILT |
1319 | pos = next_pos + 1; |
1320 | } | |
1321 | while (next_pos != std::string::npos); | |
1322 | } | |
ee1fe73e | 1323 | |
8c604651 CS |
1324 | // Parse the contents of -retain-symbols-file into a set. |
1325 | if (this->retain_symbols_file()) | |
1326 | { | |
1327 | std::ifstream in; | |
1328 | in.open(this->retain_symbols_file()); | |
1329 | if (!in) | |
bbc5ae17 RM |
1330 | gold_fatal(_("unable to open -retain-symbols-file file %s: %s"), |
1331 | this->retain_symbols_file(), strerror(errno)); | |
8c604651 CS |
1332 | std::string line; |
1333 | std::getline(in, line); // this chops off the trailing \n, if any | |
1334 | while (in) | |
bbc5ae17 RM |
1335 | { |
1336 | if (!line.empty() && line[line.length() - 1] == '\r') // Windows | |
1337 | line.resize(line.length() - 1); | |
1338 | this->symbols_to_retain_.insert(line); | |
1339 | std::getline(in, line); | |
1340 | } | |
8c604651 CS |
1341 | } |
1342 | ||
e2153196 ILT |
1343 | // -Bgroup implies --unresolved-symbols=report-all. |
1344 | if (this->Bgroup() && !this->user_set_unresolved_symbols()) | |
1345 | this->set_unresolved_symbols("report-all"); | |
1346 | ||
1347 | // -shared implies --allow-shlib-undefined. Currently | |
1348 | // ---allow-shlib-undefined controls warnings issued based on the | |
1349 | // -symbol table. --unresolved-symbols controls warnings issued | |
1350 | // -based on relocations. | |
d7ab2a47 KVH |
1351 | if (this->shared() && !this->user_set_allow_shlib_undefined()) |
1352 | this->set_allow_shlib_undefined(true); | |
1353 | ||
ee1fe73e ILT |
1354 | // Normalize library_path() by adding the sysroot to all directories |
1355 | // in the path, as appropriate. | |
1356 | this->add_sysroot(); | |
1357 | ||
1358 | // Now that we've normalized the options, check for contradictory ones. | |
4e1e25e0 CC |
1359 | if (this->shared() && this->is_static()) |
1360 | gold_fatal(_("-shared and -static are incompatible")); | |
374ad285 ILT |
1361 | if (this->shared() && this->pie()) |
1362 | gold_fatal(_("-shared and -pie are incompatible")); | |
f9fa4a63 CC |
1363 | if (this->pie() && this->is_static()) |
1364 | gold_fatal(_("-pie and -static are incompatible")); | |
4e1e25e0 | 1365 | |
ee1fe73e ILT |
1366 | if (this->shared() && this->relocatable()) |
1367 | gold_fatal(_("-shared and -r are incompatible")); | |
374ad285 ILT |
1368 | if (this->pie() && this->relocatable()) |
1369 | gold_fatal(_("-pie and -r are incompatible")); | |
ee1fe73e | 1370 | |
886288f1 ILT |
1371 | if (!this->shared()) |
1372 | { | |
1373 | if (this->filter() != NULL) | |
1374 | gold_fatal(_("-F/--filter may not used without -shared")); | |
1375 | if (this->any_auxiliary()) | |
1376 | gold_fatal(_("-f/--auxiliary may not be used without -shared")); | |
1377 | } | |
1378 | ||
8c604651 CS |
1379 | // TODO: implement support for -retain-symbols-file with -r, if needed. |
1380 | if (this->relocatable() && this->retain_symbols_file()) | |
1381 | gold_fatal(_("-retain-symbols-file does not yet work with -r")); | |
1382 | ||
ee1fe73e | 1383 | if (this->oformat_enum() != General_options::OBJECT_FORMAT_ELF |
374ad285 ILT |
1384 | && (this->shared() |
1385 | || this->pie() | |
1386 | || this->relocatable())) | |
1387 | gold_fatal(_("binary output format not compatible " | |
1388 | "with -shared or -pie or -r")); | |
ee1fe73e | 1389 | |
c18476e7 ILT |
1390 | if (this->user_set_hash_bucket_empty_fraction() |
1391 | && (this->hash_bucket_empty_fraction() < 0.0 | |
1392 | || this->hash_bucket_empty_fraction() >= 1.0)) | |
1393 | gold_fatal(_("--hash-bucket-empty-fraction value %g out of range " | |
1394 | "[0.0, 1.0)"), | |
1395 | this->hash_bucket_empty_fraction()); | |
1396 | ||
8c21d9d3 | 1397 | if (this->implicit_incremental_ && this->incremental_mode_ == INCREMENTAL_OFF) |
266d0a74 | 1398 | gold_fatal(_("Options --incremental-changed, --incremental-unchanged, " |
bbc5ae17 | 1399 | "--incremental-unknown require the use of --incremental")); |
266d0a74 | 1400 | |
403a3331 CC |
1401 | // Check for options that are not compatible with incremental linking. |
1402 | // Where an option can be disabled without seriously changing the semantics | |
1403 | // of the link, we turn the option off; otherwise, we issue a fatal error. | |
1404 | ||
1405 | if (this->incremental_mode_ != INCREMENTAL_OFF) | |
1406 | { | |
1407 | if (this->relocatable()) | |
1408 | gold_fatal(_("incremental linking is not compatible with -r")); | |
1409 | if (this->emit_relocs()) | |
1410 | gold_fatal(_("incremental linking is not compatible with " | |
1411 | "--emit-relocs")); | |
1412 | if (this->has_plugins()) | |
1413 | gold_fatal(_("incremental linking is not compatible with --plugin")); | |
943c8b43 CC |
1414 | if (this->relro()) |
1415 | gold_fatal(_("incremental linking is not compatible with -z relro")); | |
158600eb CC |
1416 | if (this->pie()) |
1417 | gold_fatal(_("incremental linking is not compatible with -pie")); | |
403a3331 CC |
1418 | if (this->gc_sections()) |
1419 | { | |
1420 | gold_warning(_("ignoring --gc-sections for an incremental link")); | |
1421 | this->set_gc_sections(false); | |
1422 | } | |
1423 | if (this->icf_enabled()) | |
1424 | { | |
1425 | gold_warning(_("ignoring --icf for an incremental link")); | |
1426 | this->set_icf_status(ICF_NONE); | |
1427 | } | |
1428 | if (strcmp(this->compress_debug_sections(), "none") != 0) | |
1429 | { | |
1430 | gold_warning(_("ignoring --compress-debug-sections for an " | |
1431 | "incremental link")); | |
1432 | this->set_compress_debug_sections("none"); | |
1433 | } | |
1434 | } | |
1435 | ||
bbc5ae17 RM |
1436 | // --rosegment-gap implies --rosegment. |
1437 | if (this->user_set_rosegment_gap()) | |
1438 | this->set_rosegment(true); | |
1439 | ||
ee1fe73e | 1440 | // FIXME: we can/should be doing a lot more sanity checking here. |
e5756efb ILT |
1441 | } |
1442 | ||
ad2d6943 ILT |
1443 | // Search_directory methods. |
1444 | ||
1445 | // This is called if we have a sysroot. Apply the sysroot if | |
1446 | // appropriate. Record whether the directory is in the sysroot. | |
1447 | ||
1448 | void | |
1449 | Search_directory::add_sysroot(const char* sysroot, | |
bbc5ae17 | 1450 | const char* canonical_sysroot) |
ad2d6943 ILT |
1451 | { |
1452 | gold_assert(*sysroot != '\0'); | |
1453 | if (this->put_in_sysroot_) | |
1454 | { | |
1455 | if (!IS_DIR_SEPARATOR(this->name_[0]) | |
bbc5ae17 RM |
1456 | && !IS_DIR_SEPARATOR(sysroot[strlen(sysroot) - 1])) |
1457 | this->name_ = '/' + this->name_; | |
ad2d6943 ILT |
1458 | this->name_ = sysroot + this->name_; |
1459 | this->is_in_sysroot_ = true; | |
1460 | } | |
1461 | else | |
1462 | { | |
1463 | // Check whether this entry is in the sysroot. To do this | |
1464 | // correctly, we need to use canonical names. Otherwise we will | |
1465 | // get confused by the ../../.. paths that gcc tends to use. | |
1466 | char* canonical_name = lrealpath(this->name_.c_str()); | |
1467 | int canonical_name_len = strlen(canonical_name); | |
1468 | int canonical_sysroot_len = strlen(canonical_sysroot); | |
1469 | if (canonical_name_len > canonical_sysroot_len | |
bbc5ae17 RM |
1470 | && IS_DIR_SEPARATOR(canonical_name[canonical_sysroot_len])) |
1471 | { | |
1472 | canonical_name[canonical_sysroot_len] = '\0'; | |
1473 | if (FILENAME_CMP(canonical_name, canonical_sysroot) == 0) | |
1474 | this->is_in_sysroot_ = true; | |
1475 | } | |
ad2d6943 ILT |
1476 | free(canonical_name); |
1477 | } | |
1478 | } | |
1479 | ||
dbe717ef ILT |
1480 | // Input_arguments methods. |
1481 | ||
1482 | // Add a file to the list. | |
1483 | ||
c7975edd | 1484 | Input_argument& |
cdc29364 | 1485 | Input_arguments::add_file(Input_file_argument& file) |
dbe717ef | 1486 | { |
cdc29364 | 1487 | file.set_arg_serial(++this->file_count_); |
b0193076 | 1488 | if (this->in_group_) |
dbe717ef | 1489 | { |
a3ad94ed ILT |
1490 | gold_assert(!this->input_argument_list_.empty()); |
1491 | gold_assert(this->input_argument_list_.back().is_group()); | |
c7975edd | 1492 | return this->input_argument_list_.back().group()->add_file(file); |
dbe717ef | 1493 | } |
c7975edd | 1494 | if (this->in_lib_) |
b0193076 RÁE |
1495 | { |
1496 | gold_assert(!this->input_argument_list_.empty()); | |
1497 | gold_assert(this->input_argument_list_.back().is_lib()); | |
c7975edd | 1498 | return this->input_argument_list_.back().lib()->add_file(file); |
b0193076 | 1499 | } |
c7975edd CC |
1500 | this->input_argument_list_.push_back(Input_argument(file)); |
1501 | return this->input_argument_list_.back(); | |
dbe717ef ILT |
1502 | } |
1503 | ||
1504 | // Start a group. | |
1505 | ||
1506 | void | |
1507 | Input_arguments::start_group() | |
1508 | { | |
ee1fe73e ILT |
1509 | if (this->in_group_) |
1510 | gold_fatal(_("May not nest groups")); | |
b0193076 RÁE |
1511 | if (this->in_lib_) |
1512 | gold_fatal(_("may not nest groups in libraries")); | |
dbe717ef ILT |
1513 | Input_file_group* group = new Input_file_group(); |
1514 | this->input_argument_list_.push_back(Input_argument(group)); | |
1515 | this->in_group_ = true; | |
1516 | } | |
1517 | ||
1518 | // End a group. | |
1519 | ||
1520 | void | |
1521 | Input_arguments::end_group() | |
1522 | { | |
ee1fe73e ILT |
1523 | if (!this->in_group_) |
1524 | gold_fatal(_("Group end without group start")); | |
dbe717ef ILT |
1525 | this->in_group_ = false; |
1526 | } | |
1527 | ||
b0193076 RÁE |
1528 | // Start a lib. |
1529 | ||
1530 | void | |
1531 | Input_arguments::start_lib(const Position_dependent_options& options) | |
1532 | { | |
1533 | if (this->in_lib_) | |
1534 | gold_fatal(_("may not nest libraries")); | |
1535 | if (this->in_group_) | |
1536 | gold_fatal(_("may not nest libraries in groups")); | |
1537 | Input_file_lib* lib = new Input_file_lib(options); | |
1538 | this->input_argument_list_.push_back(Input_argument(lib)); | |
1539 | this->in_lib_ = true; | |
1540 | } | |
1541 | ||
1542 | // End a lib. | |
1543 | ||
1544 | void | |
1545 | Input_arguments::end_lib() | |
1546 | { | |
1547 | if (!this->in_lib_) | |
1548 | gold_fatal(_("lib end without lib start")); | |
1549 | this->in_lib_ = false; | |
1550 | } | |
1551 | ||
ead1e424 | 1552 | // Command_line options. |
bae7f79e | 1553 | |
a5dc0706 | 1554 | Command_line::Command_line() |
bae7f79e ILT |
1555 | { |
1556 | } | |
1557 | ||
293c1386 CC |
1558 | // Pre_options is the hook that sets the ready_to_register flag. |
1559 | ||
1560 | Command_line::Pre_options::Pre_options() | |
1561 | { | |
1562 | gold::options::ready_to_register = true; | |
1563 | } | |
1564 | ||
ee1fe73e ILT |
1565 | // Process the command line options. For process_one_option, i is the |
1566 | // index of argv to process next, and must be an option (that is, | |
1567 | // start with a dash). The return value is the index of the next | |
1568 | // option to process (i+1 or i+2, or argc to indicate processing is | |
1569 | // done). no_more_options is set to true if (and when) "--" is seen | |
1570 | // as an option. | |
bae7f79e | 1571 | |
a0451b38 | 1572 | int |
ee1fe73e | 1573 | Command_line::process_one_option(int argc, const char** argv, int i, |
bbc5ae17 | 1574 | bool* no_more_options) |
bae7f79e | 1575 | { |
ee1fe73e | 1576 | gold_assert(argv[i][0] == '-' && !(*no_more_options)); |
a0451b38 | 1577 | |
ee1fe73e ILT |
1578 | // If we are reading "--", then just set no_more_options and return. |
1579 | if (argv[i][1] == '-' && argv[i][2] == '\0') | |
bae7f79e | 1580 | { |
ee1fe73e | 1581 | *no_more_options = true; |
a0451b38 ILT |
1582 | return i + 1; |
1583 | } | |
bae7f79e | 1584 | |
ee1fe73e ILT |
1585 | int new_i = i; |
1586 | options::One_option* option = NULL; | |
1587 | const char* arg = NULL; | |
bae7f79e | 1588 | |
ee1fe73e ILT |
1589 | // First, try to process argv as a long option. |
1590 | option = parse_long_option(argc, argv, false, &arg, &new_i); | |
1591 | if (option) | |
a0451b38 | 1592 | { |
ee1fe73e ILT |
1593 | option->reader->parse_to_value(argv[i], arg, this, &this->options_); |
1594 | return new_i; | |
a0451b38 | 1595 | } |
bae7f79e | 1596 | |
ee1fe73e ILT |
1597 | // Now, try to process argv as a short option. Since several short |
1598 | // options can be combined in one argv, we may have to parse a lot | |
1599 | // until we're done reading this argv. | |
1600 | int pos_in_argv_i = 1; | |
1601 | while (new_i == i) | |
a0451b38 | 1602 | { |
ee1fe73e ILT |
1603 | option = parse_short_option(argc, argv, pos_in_argv_i, &arg, &new_i); |
1604 | if (!option) | |
bbc5ae17 | 1605 | break; |
ee1fe73e ILT |
1606 | option->reader->parse_to_value(argv[i], arg, this, &this->options_); |
1607 | ++pos_in_argv_i; | |
a0451b38 | 1608 | } |
ee1fe73e ILT |
1609 | if (option) |
1610 | return new_i; | |
a0451b38 | 1611 | |
ee1fe73e ILT |
1612 | // I guess it's neither a long option nor a short option. |
1613 | usage(_("unknown option"), argv[i]); | |
1614 | return argc; | |
a0451b38 | 1615 | } |
bae7f79e | 1616 | |
bae7f79e | 1617 | |
a0451b38 | 1618 | void |
ee1fe73e | 1619 | Command_line::process(int argc, const char** argv) |
a0451b38 ILT |
1620 | { |
1621 | bool no_more_options = false; | |
1622 | int i = 0; | |
1623 | while (i < argc) | |
ead1e424 | 1624 | { |
ee1fe73e ILT |
1625 | this->position_options_.copy_from_options(this->options()); |
1626 | if (no_more_options || argv[i][0] != '-') | |
bbc5ae17 | 1627 | { |
ae3b5189 CD |
1628 | Input_file_argument file(argv[i], |
1629 | Input_file_argument::INPUT_FILE_TYPE_FILE, | |
1630 | "", false, this->position_options_); | |
bbc5ae17 RM |
1631 | this->inputs_.add_file(file); |
1632 | ++i; | |
1633 | } | |
bae7f79e | 1634 | else |
bbc5ae17 | 1635 | i = process_one_option(argc, argv, i, &no_more_options); |
bae7f79e | 1636 | } |
bae7f79e | 1637 | |
dbe717ef | 1638 | if (this->inputs_.in_group()) |
ee1fe73e ILT |
1639 | { |
1640 | fprintf(stderr, _("%s: missing group end\n"), program_name); | |
1641 | usage(); | |
1642 | } | |
bae7f79e | 1643 | |
bd2e3511 BP |
1644 | if (this->inputs_.in_lib()) |
1645 | { | |
1646 | fprintf(stderr, _("%s: missing lib end\n"), program_name); | |
1647 | usage(); | |
1648 | } | |
1649 | ||
ee1fe73e ILT |
1650 | // Normalize the options and ensure they don't contradict each other. |
1651 | this->options_.finalize(); | |
bae7f79e | 1652 | } |
61ba1cf9 | 1653 | |
6affe781 ILT |
1654 | // Finalize the version script options and return them. |
1655 | ||
1656 | const Version_script_info& | |
1657 | Command_line::version_script() | |
1658 | { | |
1659 | this->options_.finalize_dynamic_list(); | |
1660 | Version_script_info* vsi = this->script_options_.version_script_info(); | |
1661 | vsi->finalize(); | |
11e32464 | 1662 | return *vsi; |
6affe781 ILT |
1663 | } |
1664 | ||
61ba1cf9 | 1665 | } // End namespace gold. |