Commit | Line | Data |
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bae7f79e ILT |
1 | // options.c -- handle command line options for gold |
2 | ||
b3adc24a | 3 | // Copyright (C) 2006-2020 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 | ||
ee1fe73e ILT |
343 | void |
344 | General_options::parse_defsym(const char*, const char* arg, | |
bbc5ae17 | 345 | Command_line* cmdline) |
ee1fe73e ILT |
346 | { |
347 | cmdline->script_options().define_symbol(arg); | |
348 | } | |
88dd47ac | 349 | |
cd3c333f CC |
350 | void |
351 | General_options::parse_discard_all(const char*, const char*, | |
352 | Command_line*) | |
353 | { | |
354 | this->discard_locals_ = DISCARD_ALL; | |
355 | } | |
356 | ||
357 | void | |
358 | General_options::parse_discard_locals(const char*, const char*, | |
359 | Command_line*) | |
360 | { | |
361 | this->discard_locals_ = DISCARD_LOCALS; | |
362 | } | |
363 | ||
364 | void | |
365 | General_options::parse_discard_none(const char*, const char*, | |
366 | Command_line*) | |
367 | { | |
368 | this->discard_locals_ = DISCARD_NONE; | |
369 | } | |
370 | ||
8c21d9d3 CC |
371 | void |
372 | General_options::parse_incremental(const char*, const char*, | |
bbc5ae17 | 373 | Command_line*) |
8c21d9d3 CC |
374 | { |
375 | this->incremental_mode_ = INCREMENTAL_AUTO; | |
376 | } | |
377 | ||
378 | void | |
379 | General_options::parse_no_incremental(const char*, const char*, | |
bbc5ae17 | 380 | Command_line*) |
8c21d9d3 CC |
381 | { |
382 | this->incremental_mode_ = INCREMENTAL_OFF; | |
383 | } | |
384 | ||
385 | void | |
386 | General_options::parse_incremental_full(const char*, const char*, | |
387 | Command_line*) | |
388 | { | |
389 | this->incremental_mode_ = INCREMENTAL_FULL; | |
390 | } | |
391 | ||
392 | void | |
393 | General_options::parse_incremental_update(const char*, const char*, | |
394 | Command_line*) | |
395 | { | |
396 | this->incremental_mode_ = INCREMENTAL_UPDATE; | |
397 | } | |
398 | ||
266d0a74 ILT |
399 | void |
400 | General_options::parse_incremental_changed(const char*, const char*, | |
bbc5ae17 | 401 | Command_line*) |
266d0a74 ILT |
402 | { |
403 | this->implicit_incremental_ = true; | |
404 | this->incremental_disposition_ = INCREMENTAL_CHANGED; | |
405 | } | |
406 | ||
407 | void | |
408 | General_options::parse_incremental_unchanged(const char*, const char*, | |
bbc5ae17 | 409 | Command_line*) |
266d0a74 ILT |
410 | { |
411 | this->implicit_incremental_ = true; | |
412 | this->incremental_disposition_ = INCREMENTAL_UNCHANGED; | |
413 | } | |
414 | ||
415 | void | |
416 | General_options::parse_incremental_unknown(const char*, const char*, | |
bbc5ae17 | 417 | Command_line*) |
266d0a74 ILT |
418 | { |
419 | this->implicit_incremental_ = true; | |
420 | this->incremental_disposition_ = INCREMENTAL_CHECK; | |
421 | } | |
422 | ||
221597a5 CC |
423 | void |
424 | General_options::parse_incremental_startup_unchanged(const char*, const char*, | |
425 | Command_line*) | |
426 | { | |
427 | this->implicit_incremental_ = true; | |
428 | this->incremental_startup_disposition_ = INCREMENTAL_UNCHANGED; | |
429 | } | |
430 | ||
ee1fe73e ILT |
431 | void |
432 | General_options::parse_library(const char*, const char* arg, | |
bbc5ae17 | 433 | Command_line* cmdline) |
ee1fe73e | 434 | { |
ae3b5189 | 435 | Input_file_argument::Input_file_type type; |
ca09d69a | 436 | const char* name; |
ae3b5189 CD |
437 | if (arg[0] == ':') |
438 | { | |
439 | type = Input_file_argument::INPUT_FILE_TYPE_SEARCHED_FILE; | |
440 | name = arg + 1; | |
441 | } | |
442 | else | |
443 | { | |
444 | type = Input_file_argument::INPUT_FILE_TYPE_LIBRARY; | |
445 | name = arg; | |
446 | } | |
447 | Input_file_argument file(name, type, "", false, *this); | |
ee1fe73e ILT |
448 | cmdline->inputs().add_file(file); |
449 | } | |
450 | ||
89fc3421 CC |
451 | void |
452 | General_options::parse_plugin(const char*, const char* arg, | |
bbc5ae17 | 453 | Command_line*) |
89fc3421 CC |
454 | { |
455 | this->add_plugin(arg); | |
456 | } | |
4674ecfc CC |
457 | |
458 | // Parse --plugin-opt. | |
459 | ||
460 | void | |
461 | General_options::parse_plugin_opt(const char*, const char* arg, | |
bbc5ae17 | 462 | Command_line*) |
4674ecfc CC |
463 | { |
464 | this->add_plugin_option(arg); | |
465 | } | |
89fc3421 | 466 | |
afd2ea23 AM |
467 | void |
468 | General_options::parse_no_power10_stubs(const char*, const char*, | |
469 | Command_line*) | |
470 | { | |
471 | this->set_power10_stubs("no"); | |
472 | this->set_user_set_power10_stubs(); | |
473 | } | |
474 | ||
ee1fe73e ILT |
475 | void |
476 | General_options::parse_R(const char* option, const char* arg, | |
bbc5ae17 | 477 | Command_line* cmdline) |
88dd47ac | 478 | { |
88dd47ac | 479 | struct stat s; |
ee1fe73e ILT |
480 | if (::stat(arg, &s) != 0 || S_ISDIR(s.st_mode)) |
481 | this->add_to_rpath(arg); | |
88dd47ac | 482 | else |
ee1fe73e | 483 | this->parse_just_symbols(option, arg, cmdline); |
88dd47ac ILT |
484 | } |
485 | ||
ee1fe73e ILT |
486 | void |
487 | General_options::parse_just_symbols(const char*, const char* arg, | |
bbc5ae17 | 488 | Command_line* cmdline) |
88dd47ac | 489 | { |
ae3b5189 CD |
490 | Input_file_argument file(arg, Input_file_argument::INPUT_FILE_TYPE_FILE, |
491 | "", true, *this); | |
ee1fe73e | 492 | cmdline->inputs().add_file(file); |
88dd47ac ILT |
493 | } |
494 | ||
a192ba05 ILT |
495 | // Handle --section-start. |
496 | ||
497 | void | |
498 | General_options::parse_section_start(const char*, const char* arg, | |
499 | Command_line*) | |
500 | { | |
501 | const char* eq = strchr(arg, '='); | |
502 | if (eq == NULL) | |
503 | { | |
504 | gold_error(_("invalid argument to --section-start; " | |
505 | "must be SECTION=ADDRESS")); | |
506 | return; | |
507 | } | |
508 | ||
509 | std::string section_name(arg, eq - arg); | |
510 | ||
511 | ++eq; | |
512 | const char* val_start = eq; | |
513 | if (eq[0] == '0' && (eq[1] == 'x' || eq[1] == 'X')) | |
514 | eq += 2; | |
515 | if (*eq == '\0') | |
516 | { | |
517 | gold_error(_("--section-start address missing")); | |
518 | return; | |
519 | } | |
520 | uint64_t addr = 0; | |
521 | hex_init(); | |
522 | for (; *eq != '\0'; ++eq) | |
523 | { | |
524 | if (!hex_p(*eq)) | |
525 | { | |
526 | gold_error(_("--section-start argument %s is not a valid hex number"), | |
527 | val_start); | |
528 | return; | |
529 | } | |
530 | addr <<= 4; | |
531 | addr += hex_value(*eq); | |
532 | } | |
533 | ||
534 | this->section_starts_[section_name] = addr; | |
535 | } | |
536 | ||
537 | // Look up a --section-start value. | |
538 | ||
539 | bool | |
540 | General_options::section_start(const char* secname, uint64_t* paddr) const | |
541 | { | |
542 | if (this->section_starts_.empty()) | |
543 | return false; | |
544 | std::map<std::string, uint64_t>::const_iterator p = | |
545 | this->section_starts_.find(secname); | |
546 | if (p == this->section_starts_.end()) | |
547 | return false; | |
548 | *paddr = p->second; | |
549 | return true; | |
550 | } | |
551 | ||
ee1fe73e ILT |
552 | void |
553 | General_options::parse_static(const char*, const char*, Command_line*) | |
3c2fafa5 | 554 | { |
ee1fe73e | 555 | this->set_static(true); |
09124467 ILT |
556 | } |
557 | ||
ee1fe73e ILT |
558 | void |
559 | General_options::parse_script(const char*, const char* arg, | |
bbc5ae17 | 560 | Command_line* cmdline) |
09124467 | 561 | { |
ee1fe73e ILT |
562 | if (!read_commandline_script(arg, cmdline)) |
563 | gold::gold_fatal(_("unable to parse script file %s"), arg); | |
61ba1cf9 ILT |
564 | } |
565 | ||
ee1fe73e ILT |
566 | void |
567 | General_options::parse_version_script(const char*, const char* arg, | |
bbc5ae17 | 568 | Command_line* cmdline) |
ead1e424 | 569 | { |
ee1fe73e ILT |
570 | if (!read_version_script(arg, cmdline)) |
571 | gold::gold_fatal(_("unable to parse version script file %s"), arg); | |
ead1e424 ILT |
572 | } |
573 | ||
c82fbeee CS |
574 | void |
575 | General_options::parse_dynamic_list(const char*, const char* arg, | |
bbc5ae17 | 576 | Command_line* cmdline) |
c82fbeee CS |
577 | { |
578 | if (!read_dynamic_list(arg, cmdline, &this->dynamic_list_)) | |
579 | gold::gold_fatal(_("unable to parse dynamic-list script file %s"), arg); | |
fd834e57 | 580 | this->have_dynamic_list_ = true; |
c82fbeee CS |
581 | } |
582 | ||
ee1fe73e ILT |
583 | void |
584 | General_options::parse_start_group(const char*, const char*, | |
bbc5ae17 | 585 | Command_line* cmdline) |
ee1fe73e ILT |
586 | { |
587 | cmdline->inputs().start_group(); | |
588 | } | |
ead1e424 | 589 | |
ee1fe73e ILT |
590 | void |
591 | General_options::parse_end_group(const char*, const char*, | |
bbc5ae17 | 592 | Command_line* cmdline) |
ead1e424 | 593 | { |
ee1fe73e | 594 | cmdline->inputs().end_group(); |
ead1e424 ILT |
595 | } |
596 | ||
b0193076 RÁE |
597 | void |
598 | General_options::parse_start_lib(const char*, const char*, | |
bbc5ae17 | 599 | Command_line* cmdline) |
b0193076 RÁE |
600 | { |
601 | cmdline->inputs().start_lib(cmdline->position_dependent_options()); | |
602 | } | |
603 | ||
604 | void | |
605 | General_options::parse_end_lib(const char*, const char*, | |
bbc5ae17 | 606 | Command_line* cmdline) |
b0193076 RÁE |
607 | { |
608 | cmdline->inputs().end_lib(); | |
609 | } | |
610 | ||
65514900 | 611 | // The function add_excluded_libs() in ld/ldlang.c of GNU ld breaks up a list |
9b547ce6 | 612 | // of names separated by commas or colons and puts them in a linked list. |
65514900 CC |
613 | // We implement the same parsing of names here but store names in an unordered |
614 | // map to speed up searching of names. | |
615 | ||
616 | void | |
617 | General_options::parse_exclude_libs(const char*, const char* arg, | |
bbc5ae17 | 618 | Command_line*) |
65514900 | 619 | { |
ca09d69a | 620 | const char* p = arg; |
65514900 CC |
621 | |
622 | while (*p != '\0') | |
623 | { | |
624 | size_t length = strcspn(p, ",:"); | |
625 | this->excluded_libs_.insert(std::string(p, length)); | |
626 | p += (p[length] ? length + 1 : length); | |
627 | } | |
628 | } | |
629 | ||
630 | // The checking logic is based on the function check_excluded_libs() in | |
631 | // ld/ldlang.c of GNU ld but our implementation is different because we use | |
632 | // an unordered map instead of a linked list, which is what GNU ld uses. GNU | |
633 | // ld searches sequentially in the excluded libs list. For a given archive, | |
634 | // a match is found if the archive's name matches exactly one of the list | |
635 | // entry or if the archive's name is of the form FOO.a and FOO matches exactly | |
636 | // one of the list entry. An entry "ALL" in the list is considered as a | |
637 | // wild-card and matches any given name. | |
638 | ||
639 | bool | |
ca09d69a | 640 | General_options::check_excluded_libs(const std::string &name) const |
65514900 CC |
641 | { |
642 | Unordered_set<std::string>::const_iterator p; | |
643 | ||
644 | // Exit early for the most common case. | |
645 | if (excluded_libs_.empty()) | |
646 | return false; | |
647 | ||
648 | // If we see "ALL", all archives are excluded from automatic export. | |
649 | p = excluded_libs_.find(std::string("ALL")); | |
650 | if (p != excluded_libs_.end()) | |
651 | return true; | |
652 | ||
2fdd743f | 653 | // First strip off any directories in name. |
ca09d69a | 654 | const char* basename = lbasename(name.c_str()); |
2fdd743f | 655 | |
65514900 | 656 | // Try finding an exact match. |
2fdd743f | 657 | p = excluded_libs_.find(std::string(basename)); |
65514900 CC |
658 | if (p != excluded_libs_.end()) |
659 | return true; | |
660 | ||
661 | // Try matching NAME without ".a" at the end. | |
2fdd743f | 662 | size_t length = strlen(basename); |
65514900 | 663 | if ((length >= 2) |
2fdd743f DK |
664 | && (basename[length - 2] == '.') |
665 | && (basename[length - 1] == 'a')) | |
65514900 | 666 | { |
2fdd743f | 667 | p = excluded_libs_.find(std::string(basename, length - 2)); |
65514900 CC |
668 | if (p != excluded_libs_.end()) |
669 | return true; | |
670 | } | |
671 | ||
672 | return false; | |
673 | } | |
674 | ||
e6a307ba ILT |
675 | // Recognize input and output target names. The GNU linker accepts |
676 | // these with --format and --oformat. This code is intended to be | |
677 | // minimally compatible. In practice for an ELF target this would be | |
678 | // the same target as the input files; that name always start with | |
679 | // "elf". Non-ELF targets would be "srec", "symbolsrec", "tekhex", | |
680 | // "binary", "ihex". | |
681 | ||
682 | General_options::Object_format | |
683 | General_options::string_to_object_format(const char* arg) | |
684 | { | |
956b03bb | 685 | if (strncmp(arg, "elf", 3) == 0 || strcmp(arg, "default") == 0) |
e6a307ba ILT |
686 | return gold::General_options::OBJECT_FORMAT_ELF; |
687 | else if (strcmp(arg, "binary") == 0) | |
688 | return gold::General_options::OBJECT_FORMAT_BINARY; | |
689 | else | |
690 | { | |
691 | gold::gold_error(_("format '%s' not supported; treating as elf " | |
bbc5ae17 RM |
692 | "(supported formats: elf, binary)"), |
693 | arg); | |
e6a307ba ILT |
694 | return gold::General_options::OBJECT_FORMAT_ELF; |
695 | } | |
696 | } | |
697 | ||
376c3ecd CC |
698 | const char* |
699 | General_options::object_format_to_string(General_options::Object_format fmt) | |
700 | { | |
701 | switch (fmt) | |
702 | { | |
703 | case General_options::OBJECT_FORMAT_ELF: | |
704 | return "elf"; | |
705 | case General_options::OBJECT_FORMAT_BINARY: | |
706 | return "binary"; | |
707 | default: | |
708 | gold_unreachable(); | |
709 | } | |
710 | } | |
711 | ||
9b2fd367 DK |
712 | void |
713 | General_options::parse_fix_v4bx(const char*, const char*, | |
bbc5ae17 | 714 | Command_line*) |
9b2fd367 DK |
715 | { |
716 | this->fix_v4bx_ = FIX_V4BX_REPLACE; | |
717 | } | |
718 | ||
719 | void | |
720 | General_options::parse_fix_v4bx_interworking(const char*, const char*, | |
721 | Command_line*) | |
722 | { | |
723 | this->fix_v4bx_ = FIX_V4BX_INTERWORKING; | |
724 | } | |
725 | ||
7296d933 DK |
726 | void |
727 | General_options::parse_EB(const char*, const char*, Command_line*) | |
728 | { | |
729 | this->endianness_ = ENDIANNESS_BIG; | |
730 | } | |
731 | ||
732 | void | |
733 | General_options::parse_EL(const char*, const char*, Command_line*) | |
734 | { | |
735 | this->endianness_ = ENDIANNESS_LITTLE; | |
736 | } | |
737 | ||
376c3ecd CC |
738 | void |
739 | General_options::copy_from_posdep_options( | |
740 | const Position_dependent_options& posdep) | |
741 | { | |
742 | this->set_as_needed(posdep.as_needed()); | |
743 | this->set_Bdynamic(posdep.Bdynamic()); | |
744 | this->set_format( | |
745 | General_options::object_format_to_string(posdep.format_enum())); | |
746 | this->set_whole_archive(posdep.whole_archive()); | |
747 | this->set_incremental_disposition(posdep.incremental_disposition()); | |
748 | } | |
749 | ||
750 | void | |
751 | General_options::parse_push_state(const char*, const char*, Command_line*) | |
752 | { | |
753 | Position_dependent_options* posdep = new Position_dependent_options(*this); | |
754 | this->options_stack_.push_back(posdep); | |
755 | } | |
756 | ||
757 | void | |
758 | General_options::parse_pop_state(const char*, const char*, Command_line*) | |
759 | { | |
760 | if (this->options_stack_.empty()) | |
761 | { | |
762 | gold::gold_error(_("unbalanced --push-state/--pop-state")); | |
763 | return; | |
764 | } | |
765 | Position_dependent_options* posdep = this->options_stack_.back(); | |
766 | this->options_stack_.pop_back(); | |
767 | this->copy_from_posdep_options(*posdep); | |
768 | delete posdep; | |
769 | } | |
770 | ||
ee1fe73e | 771 | } // End namespace gold. |
bae7f79e | 772 | |
ee1fe73e | 773 | namespace |
bae7f79e | 774 | { |
bae7f79e | 775 | |
ee1fe73e ILT |
776 | void |
777 | usage() | |
778 | { | |
779 | fprintf(stderr, | |
bbc5ae17 RM |
780 | _("%s: use the --help option for usage information\n"), |
781 | gold::program_name); | |
ee1fe73e ILT |
782 | ::exit(EXIT_FAILURE); |
783 | } | |
bae7f79e | 784 | |
ee1fe73e | 785 | void |
ca09d69a | 786 | usage(const char* msg, const char* opt) |
ee1fe73e ILT |
787 | { |
788 | fprintf(stderr, | |
bbc5ae17 RM |
789 | _("%s: %s: %s\n"), |
790 | gold::program_name, opt, msg); | |
ee1fe73e | 791 | usage(); |
bae7f79e ILT |
792 | } |
793 | ||
ad2d6943 ILT |
794 | // If the default sysroot is relocatable, try relocating it based on |
795 | // the prefix FROM. | |
796 | ||
fd9d194f | 797 | static char* |
ad2d6943 ILT |
798 | get_relative_sysroot(const char* from) |
799 | { | |
800 | char* path = make_relative_prefix(gold::program_name, from, | |
bbc5ae17 | 801 | TARGET_SYSTEM_ROOT); |
ad2d6943 ILT |
802 | if (path != NULL) |
803 | { | |
804 | struct stat s; | |
805 | if (::stat(path, &s) == 0 && S_ISDIR(s.st_mode)) | |
bbc5ae17 | 806 | return path; |
ad2d6943 ILT |
807 | free(path); |
808 | } | |
809 | ||
810 | return NULL; | |
811 | } | |
812 | ||
813 | // Return the default sysroot. This is set by the --with-sysroot | |
ee1fe73e ILT |
814 | // option to configure. Note we do not free the return value of |
815 | // get_relative_sysroot, which is a small memory leak, but is | |
816 | // necessary since we store this pointer directly in General_options. | |
ad2d6943 | 817 | |
fd9d194f | 818 | static const char* |
ad2d6943 ILT |
819 | get_default_sysroot() |
820 | { | |
821 | const char* sysroot = TARGET_SYSTEM_ROOT; | |
822 | if (*sysroot == '\0') | |
ee1fe73e | 823 | return NULL; |
ad2d6943 ILT |
824 | |
825 | if (TARGET_SYSTEM_ROOT_RELOCATABLE) | |
826 | { | |
ee1fe73e | 827 | char* path = get_relative_sysroot(BINDIR); |
ad2d6943 | 828 | if (path == NULL) |
bbc5ae17 | 829 | path = get_relative_sysroot(TOOLBINDIR); |
ad2d6943 | 830 | if (path != NULL) |
bbc5ae17 | 831 | return path; |
ad2d6943 ILT |
832 | } |
833 | ||
834 | return sysroot; | |
835 | } | |
836 | ||
ee1fe73e ILT |
837 | // Parse a long option. Such options have the form |
838 | // <-|--><option>[=arg]. If "=arg" is not present but the option | |
839 | // takes an argument, the next word is taken to the be the argument. | |
840 | // If equals_only is set, then only the <option>=<arg> form is | |
841 | // accepted, not the <option><space><arg> form. Returns a One_option | |
842 | // struct or NULL if argv[i] cannot be parsed as a long option. In | |
843 | // the not-NULL case, *arg is set to the option's argument (NULL if | |
844 | // the option takes no argument), and *i is advanced past this option. | |
845 | // NOTE: it is safe for argv and arg to point to the same place. | |
846 | gold::options::One_option* | |
847 | parse_long_option(int argc, const char** argv, bool equals_only, | |
bbc5ae17 | 848 | const char** arg, int* i) |
61ba1cf9 | 849 | { |
ee1fe73e | 850 | const char* const this_argv = argv[*i]; |
bae7f79e | 851 | |
ee1fe73e ILT |
852 | const char* equals = strchr(this_argv, '='); |
853 | const char* option_start = this_argv + strspn(this_argv, "-"); | |
854 | std::string option(option_start, | |
bbc5ae17 | 855 | equals ? equals - option_start : strlen(option_start)); |
35cdfc9a | 856 | |
ee1fe73e ILT |
857 | gold::options::Option_map::iterator it |
858 | = gold::options::long_options->find(option); | |
859 | if (it == gold::options::long_options->end()) | |
860 | return NULL; | |
35cdfc9a | 861 | |
ee1fe73e | 862 | gold::options::One_option* retval = it->second; |
c7912668 | 863 | |
ee1fe73e ILT |
864 | // If the dash-count doesn't match, we fail. |
865 | if (this_argv[0] != '-') // no dashes at all: had better be "-z <longopt>" | |
866 | { | |
867 | if (retval->dashes != gold::options::DASH_Z) | |
bbc5ae17 | 868 | return NULL; |
ee1fe73e ILT |
869 | } |
870 | else if (this_argv[1] != '-') // one dash | |
871 | { | |
872 | if (retval->dashes != gold::options::ONE_DASH | |
bbc5ae17 RM |
873 | && retval->dashes != gold::options::EXACTLY_ONE_DASH |
874 | && retval->dashes != gold::options::TWO_DASHES) | |
875 | return NULL; | |
ee1fe73e ILT |
876 | } |
877 | else // two dashes (or more!) | |
878 | { | |
879 | if (retval->dashes != gold::options::TWO_DASHES | |
bbc5ae17 RM |
880 | && retval->dashes != gold::options::EXACTLY_TWO_DASHES |
881 | && retval->dashes != gold::options::ONE_DASH) | |
882 | return NULL; | |
ee1fe73e | 883 | } |
bae7f79e | 884 | |
ee1fe73e ILT |
885 | // Now that we know the option is good (or else bad in a way that |
886 | // will cause us to die), increment i to point past this argv. | |
887 | ++(*i); | |
bae7f79e | 888 | |
ee1fe73e ILT |
889 | // Figure out the option's argument, if any. |
890 | if (!retval->takes_argument()) | |
891 | { | |
892 | if (equals) | |
bbc5ae17 | 893 | usage(_("unexpected argument"), this_argv); |
ee1fe73e | 894 | else |
bbc5ae17 | 895 | *arg = NULL; |
ee1fe73e ILT |
896 | } |
897 | else | |
898 | { | |
899 | if (equals) | |
bbc5ae17 | 900 | *arg = equals + 1; |
086a1841 ILT |
901 | else if (retval->takes_optional_argument()) |
902 | *arg = retval->default_value; | |
ee1fe73e | 903 | else if (*i < argc && !equals_only) |
bbc5ae17 | 904 | *arg = argv[(*i)++]; |
ee1fe73e | 905 | else |
bbc5ae17 | 906 | usage(_("missing argument"), this_argv); |
ee1fe73e | 907 | } |
516cb3d0 | 908 | |
ee1fe73e ILT |
909 | return retval; |
910 | } | |
911 | ||
912 | // Parse a short option. Such options have the form -<option>[arg]. | |
913 | // If "arg" is not present but the option takes an argument, the next | |
914 | // word is taken to the be the argument. If the option does not take | |
915 | // an argument, it may be followed by another short option. Returns a | |
916 | // One_option struct or NULL if argv[i] cannot be parsed as a short | |
917 | // option. In the not-NULL case, *arg is set to the option's argument | |
918 | // (NULL if the option takes no argument), and *i is advanced past | |
919 | // this option. This function keeps *i the same if we parsed a short | |
920 | // option that does not take an argument, that looks to be followed by | |
921 | // another short option in the same word. | |
922 | gold::options::One_option* | |
923 | parse_short_option(int argc, const char** argv, int pos_in_argv_i, | |
bbc5ae17 | 924 | const char** arg, int* i) |
ee1fe73e ILT |
925 | { |
926 | const char* const this_argv = argv[*i]; | |
927 | ||
928 | if (this_argv[0] != '-') | |
929 | return NULL; | |
930 | ||
931 | // We handle -z as a special case. | |
932 | static gold::options::One_option dash_z("", gold::options::DASH_Z, | |
bbc5ae17 | 933 | 'z', "", NULL, "Z-OPTION", false, |
358a9718 | 934 | NULL, false); |
ee1fe73e ILT |
935 | gold::options::One_option* retval = NULL; |
936 | if (this_argv[pos_in_argv_i] == 'z') | |
937 | retval = &dash_z; | |
938 | else | |
939 | { | |
940 | const int char_as_int = static_cast<int>(this_argv[pos_in_argv_i]); | |
941 | if (char_as_int > 0 && char_as_int < 128) | |
bbc5ae17 | 942 | retval = gold::options::short_options[char_as_int]; |
ee1fe73e | 943 | } |
516cb3d0 | 944 | |
ee1fe73e ILT |
945 | if (retval == NULL) |
946 | return NULL; | |
35cdfc9a | 947 | |
ee1fe73e ILT |
948 | // Figure out the option's argument, if any. |
949 | if (!retval->takes_argument()) | |
cd72c291 | 950 | { |
ee1fe73e ILT |
951 | *arg = NULL; |
952 | // We only advance past this argument if it's the only one in argv. | |
953 | if (this_argv[pos_in_argv_i + 1] == '\0') | |
bbc5ae17 | 954 | ++(*i); |
cd72c291 ILT |
955 | } |
956 | else | |
ee1fe73e ILT |
957 | { |
958 | // If we take an argument, we'll eat up this entire argv entry. | |
959 | ++(*i); | |
960 | if (this_argv[pos_in_argv_i + 1] != '\0') | |
bbc5ae17 | 961 | *arg = this_argv + pos_in_argv_i + 1; |
086a1841 ILT |
962 | else if (retval->takes_optional_argument()) |
963 | *arg = retval->default_value; | |
ee1fe73e | 964 | else if (*i < argc) |
bbc5ae17 | 965 | *arg = argv[(*i)++]; |
ee1fe73e | 966 | else |
bbc5ae17 | 967 | usage(_("missing argument"), this_argv); |
ee1fe73e | 968 | } |
cd72c291 | 969 | |
ee1fe73e ILT |
970 | // If we're a -z option, we need to parse our argument as a |
971 | // long-option, e.g. "-z stacksize=8192". | |
972 | if (retval == &dash_z) | |
35cdfc9a | 973 | { |
ee1fe73e ILT |
974 | int dummy_i = 0; |
975 | const char* dash_z_arg = *arg; | |
976 | retval = parse_long_option(1, arg, true, arg, &dummy_i); | |
977 | if (retval == NULL) | |
bbc5ae17 | 978 | usage(_("unknown -z option"), dash_z_arg); |
35cdfc9a ILT |
979 | } |
980 | ||
ee1fe73e | 981 | return retval; |
c7912668 ILT |
982 | } |
983 | ||
ee1fe73e | 984 | } // End anonymous namespace. |
c7912668 | 985 | |
ee1fe73e | 986 | namespace gold |
c7912668 | 987 | { |
c7912668 | 988 | |
ee1fe73e | 989 | General_options::General_options() |
459c9f1c | 990 | : printed_version_(false), |
a192ba05 ILT |
991 | execstack_status_(EXECSTACK_FROM_INPUT), |
992 | icf_status_(ICF_NONE), | |
993 | static_(false), | |
994 | do_demangle_(false), | |
995 | plugins_(NULL), | |
996 | dynamic_list_(), | |
fd834e57 | 997 | have_dynamic_list_(false), |
8c21d9d3 | 998 | incremental_mode_(INCREMENTAL_OFF), |
221597a5 CC |
999 | incremental_disposition_(INCREMENTAL_STARTUP), |
1000 | incremental_startup_disposition_(INCREMENTAL_CHECK), | |
a192ba05 ILT |
1001 | implicit_incremental_(false), |
1002 | excluded_libs_(), | |
1003 | symbols_to_retain_(), | |
2fd9ae7a | 1004 | section_starts_(), |
7296d933 | 1005 | fix_v4bx_(FIX_V4BX_NONE), |
cd3c333f | 1006 | endianness_(ENDIANNESS_NOT_SET), |
591be3e4 | 1007 | discard_locals_(DISCARD_SEC_MERGE), |
cae64165 RM |
1008 | orphan_handling_enum_(ORPHAN_PLACE), |
1009 | start_stop_visibility_enum_(elfcpp::STV_PROTECTED) | |
ee1fe73e | 1010 | { |
293c1386 CC |
1011 | // Turn off option registration once construction is complete. |
1012 | gold::options::ready_to_register = false; | |
ee1fe73e ILT |
1013 | } |
1014 | ||
1015 | General_options::Object_format | |
1016 | General_options::format_enum() const | |
1017 | { | |
e6a307ba | 1018 | return General_options::string_to_object_format(this->format()); |
ee1fe73e ILT |
1019 | } |
1020 | ||
1021 | General_options::Object_format | |
1022 | General_options::oformat_enum() const | |
1023 | { | |
e6a307ba | 1024 | return General_options::string_to_object_format(this->oformat()); |
35cdfc9a ILT |
1025 | } |
1026 | ||
ad2d6943 ILT |
1027 | // Add the sysroot, if any, to the search paths. |
1028 | ||
1029 | void | |
1030 | General_options::add_sysroot() | |
1031 | { | |
ee1fe73e | 1032 | if (this->sysroot() == NULL || this->sysroot()[0] == '\0') |
ad2d6943 | 1033 | { |
ee1fe73e ILT |
1034 | this->set_sysroot(get_default_sysroot()); |
1035 | if (this->sysroot() == NULL || this->sysroot()[0] == '\0') | |
bbc5ae17 | 1036 | return; |
ad2d6943 ILT |
1037 | } |
1038 | ||
ee1fe73e | 1039 | char* canonical_sysroot = lrealpath(this->sysroot()); |
ad2d6943 | 1040 | |
ee1fe73e ILT |
1041 | for (Dir_list::iterator p = this->library_path_.value.begin(); |
1042 | p != this->library_path_.value.end(); | |
ad2d6943 | 1043 | ++p) |
ee1fe73e | 1044 | p->add_sysroot(this->sysroot(), canonical_sysroot); |
ad2d6943 ILT |
1045 | |
1046 | free(canonical_sysroot); | |
1047 | } | |
1048 | ||
fd9d194f ILT |
1049 | // Return whether FILENAME is in a system directory. |
1050 | ||
1051 | bool | |
1052 | General_options::is_in_system_directory(const std::string& filename) const | |
1053 | { | |
1054 | for (Dir_list::const_iterator p = this->library_path_.value.begin(); | |
1055 | p != this->library_path_.value.end(); | |
1056 | ++p) | |
1057 | { | |
1058 | // We use a straight string comparison rather than calling | |
1059 | // FILENAME_CMP because we are only interested in the cases | |
1060 | // where we found the file in a system directory, which means | |
1061 | // that we used the directory name as a prefix for a -L search. | |
1062 | if (p->is_system_directory() | |
1063 | && filename.compare(0, p->name().size(), p->name()) == 0) | |
1064 | return true; | |
1065 | } | |
1066 | return false; | |
1067 | } | |
1068 | ||
4674ecfc | 1069 | // Add a plugin to the list of plugins. |
89fc3421 CC |
1070 | |
1071 | void | |
4674ecfc | 1072 | General_options::add_plugin(const char* filename) |
89fc3421 CC |
1073 | { |
1074 | if (this->plugins_ == NULL) | |
1075 | this->plugins_ = new Plugin_manager(*this); | |
4674ecfc CC |
1076 | this->plugins_->add_plugin(filename); |
1077 | } | |
1078 | ||
1079 | // Add a plugin option to a plugin. | |
1080 | ||
1081 | void | |
1082 | General_options::add_plugin_option(const char* arg) | |
1083 | { | |
1084 | if (this->plugins_ == NULL) | |
1085 | gold_fatal("--plugin-opt requires --plugin."); | |
1086 | this->plugins_->add_plugin_option(arg); | |
89fc3421 CC |
1087 | } |
1088 | ||
ee1fe73e ILT |
1089 | // Set up variables and other state that isn't set up automatically by |
1090 | // the parse routine, and ensure options don't contradict each other | |
1091 | // and are otherwise kosher. | |
e5756efb | 1092 | |
ee1fe73e ILT |
1093 | void |
1094 | General_options::finalize() | |
bc644c6c | 1095 | { |
ee1fe73e | 1096 | // Normalize the strip modifiers. They have a total order: |
62b01cb5 ILT |
1097 | // strip_all > strip_debug > strip_non_line > strip_debug_gdb. |
1098 | // If one is true, set all beneath it to true as well. | |
ee1fe73e ILT |
1099 | if (this->strip_all()) |
1100 | this->set_strip_debug(true); | |
1101 | if (this->strip_debug()) | |
62b01cb5 ILT |
1102 | this->set_strip_debug_non_line(true); |
1103 | if (this->strip_debug_non_line()) | |
ee1fe73e | 1104 | this->set_strip_debug_gdb(true); |
bc644c6c | 1105 | |
3b293544 CF |
1106 | if (this->Bshareable()) |
1107 | this->set_shared(true); | |
1108 | ||
ee1fe73e ILT |
1109 | // If the user specifies both -s and -r, convert the -s to -S. |
1110 | // -r requires us to keep externally visible symbols! | |
1111 | if (this->strip_all() && this->relocatable()) | |
1112 | { | |
1113 | this->set_strip_all(false); | |
1114 | gold_assert(this->strip_debug()); | |
1115 | } | |
bc644c6c | 1116 | |
ee1fe73e ILT |
1117 | // For us, -dc and -dp are synonyms for --define-common. |
1118 | if (this->dc()) | |
1119 | this->set_define_common(true); | |
1120 | if (this->dp()) | |
1121 | this->set_define_common(true); | |
1122 | ||
1123 | // We also set --define-common if we're not relocatable, as long as | |
1124 | // the user didn't explicitly ask for something different. | |
1125 | if (!this->user_set_define_common()) | |
1126 | this->set_define_common(!this->relocatable()); | |
1127 | ||
1128 | // execstack_status_ is a three-state variable; update it based on | |
1129 | // -z [no]execstack. | |
1130 | if (this->execstack()) | |
1131 | this->set_execstack_status(EXECSTACK_YES); | |
1132 | else if (this->noexecstack()) | |
1133 | this->set_execstack_status(EXECSTACK_NO); | |
1134 | ||
032ce4e9 ST |
1135 | // icf_status_ is a three-state variable; update it based on the |
1136 | // value of this->icf(). | |
1137 | if (strcmp(this->icf(), "none") == 0) | |
1138 | this->set_icf_status(ICF_NONE); | |
1139 | else if (strcmp(this->icf(), "safe") == 0) | |
1140 | this->set_icf_status(ICF_SAFE); | |
1141 | else | |
1142 | this->set_icf_status(ICF_ALL); | |
1143 | ||
086a1841 ILT |
1144 | // Handle the optional argument for --demangle. |
1145 | if (this->user_set_demangle()) | |
1146 | { | |
1147 | this->set_do_demangle(true); | |
1148 | const char* style = this->demangle(); | |
1149 | if (*style != '\0') | |
1150 | { | |
1151 | enum demangling_styles style_code; | |
1152 | ||
1153 | style_code = cplus_demangle_name_to_style(style); | |
1154 | if (style_code == unknown_demangling) | |
1155 | gold_fatal("unknown demangling style '%s'", style); | |
1156 | cplus_demangle_set_style(style_code); | |
1157 | } | |
1158 | } | |
1159 | else if (this->user_set_no_demangle()) | |
1160 | this->set_do_demangle(false); | |
1161 | else | |
1162 | { | |
1163 | // Testing COLLECT_NO_DEMANGLE makes our default demangling | |
1164 | // behaviour identical to that of gcc's linker wrapper. | |
1165 | this->set_do_demangle(getenv("COLLECT_NO_DEMANGLE") == NULL); | |
1166 | } | |
1167 | ||
591be3e4 CC |
1168 | // Parse the --orphan-handling argument. |
1169 | if (this->user_set_orphan_handling()) | |
1170 | { | |
1171 | if (strcmp(this->orphan_handling(), "place") == 0) | |
1172 | this->set_orphan_handling_enum(ORPHAN_PLACE); | |
1173 | else if (strcmp(this->orphan_handling(), "discard") == 0) | |
1174 | this->set_orphan_handling_enum(ORPHAN_DISCARD); | |
1175 | else if (strcmp(this->orphan_handling(), "warn") == 0) | |
1176 | this->set_orphan_handling_enum(ORPHAN_WARN); | |
1177 | else if (strcmp(this->orphan_handling(), "error") == 0) | |
1178 | this->set_orphan_handling_enum(ORPHAN_ERROR); | |
1179 | } | |
1180 | ||
cae64165 RM |
1181 | // Parse the -z start-stop-visibility argument. |
1182 | if (this->user_set_start_stop_visibility()) | |
1183 | { | |
1184 | if (strcmp(this->start_stop_visibility(), "default") == 0) | |
1185 | this->set_start_stop_visibility_enum(elfcpp::STV_DEFAULT); | |
1186 | else if (strcmp(this->start_stop_visibility(), "internal") == 0) | |
1187 | this->set_start_stop_visibility_enum(elfcpp::STV_INTERNAL); | |
1188 | else if (strcmp(this->start_stop_visibility(), "hidden") == 0) | |
1189 | this->set_start_stop_visibility_enum(elfcpp::STV_HIDDEN); | |
1190 | else if (strcmp(this->start_stop_visibility(), "protected") == 0) | |
1191 | this->set_start_stop_visibility_enum(elfcpp::STV_PROTECTED); | |
1192 | } | |
1193 | ||
afd2ea23 AM |
1194 | // Parse the --power10-stubs argument. |
1195 | if (!this->user_set_power10_stubs()) | |
1196 | { | |
1197 | // --power10-stubs without an arg is equivalent to --power10-stubs=yes | |
1198 | // but not specifying --power10-stubs at all should be equivalent to | |
1199 | // --power10-stubs=auto. This doesn't fit into the notion of | |
1200 | // "default_value", used both as a static initializer and to provide | |
1201 | // a missing optional arg. Fix it here. | |
1202 | this->set_power10_stubs("auto"); | |
1203 | this->set_power10_stubs_enum(POWER10_STUBS_AUTO); | |
1204 | } | |
1205 | else | |
1206 | { | |
1207 | if (strcmp(this->power10_stubs(), "auto") == 0) | |
1208 | this->set_power10_stubs_enum(POWER10_STUBS_AUTO); | |
1209 | else if (strcmp(this->power10_stubs(), "no") == 0) | |
1210 | this->set_power10_stubs_enum(POWER10_STUBS_NO); | |
1211 | else if (strcmp(this->power10_stubs(), "yes") == 0) | |
1212 | this->set_power10_stubs_enum(POWER10_STUBS_YES); | |
1213 | } | |
1214 | ||
7d9e3d98 ILT |
1215 | // -M is equivalent to "-Map -". |
1216 | if (this->print_map() && !this->user_set_Map()) | |
1217 | { | |
1218 | this->set_Map("-"); | |
1219 | this->set_user_set_Map(); | |
1220 | } | |
1221 | ||
af6156ef ILT |
1222 | // Using -n or -N implies -static. |
1223 | if (this->nmagic() || this->omagic()) | |
1224 | this->set_static(true); | |
1225 | ||
ee1fe73e ILT |
1226 | // If --thread_count is specified, it applies to |
1227 | // --thread-count-{initial,middle,final}, though it doesn't override | |
1228 | // them. | |
1229 | if (this->thread_count() > 0 && this->thread_count_initial() == 0) | |
1230 | this->set_thread_count_initial(this->thread_count()); | |
1231 | if (this->thread_count() > 0 && this->thread_count_middle() == 0) | |
1232 | this->set_thread_count_middle(this->thread_count()); | |
1233 | if (this->thread_count() > 0 && this->thread_count_final() == 0) | |
1234 | this->set_thread_count_final(this->thread_count()); | |
1235 | ||
09ffbbe0 ILT |
1236 | // Let's warn if you set the thread-count but we're going to ignore it. |
1237 | #ifndef ENABLE_THREADS | |
1238 | if (this->threads()) | |
1239 | { | |
1240 | gold_warning(_("ignoring --threads: " | |
1241 | "%s was compiled without thread support"), | |
1242 | program_name); | |
1243 | this->set_threads(false); | |
1244 | } | |
1245 | if (this->thread_count() > 0 || this->thread_count_initial() > 0 | |
1246 | || this->thread_count_middle() > 0 || this->thread_count_final() > 0) | |
1247 | gold_warning(_("ignoring --thread-count: " | |
bbc5ae17 RM |
1248 | "%s was compiled without thread support"), |
1249 | program_name); | |
09ffbbe0 ILT |
1250 | #endif |
1251 | ||
24538276 CC |
1252 | #ifndef ENABLE_PLUGINS |
1253 | if (this->has_plugins()) | |
1254 | gold_fatal(_("cannot use --plugin: " | |
1255 | "%s was compiled without plugin support"), | |
1256 | program_name); | |
1257 | #endif | |
1258 | ||
3f3cddf1 | 1259 | std::string libpath; |
706e1f5e ILT |
1260 | if (this->user_set_Y()) |
1261 | { | |
3f3cddf1 ILT |
1262 | libpath = this->Y(); |
1263 | if (libpath.compare(0, 2, "P,") == 0) | |
1264 | libpath.erase(0, 2); | |
1265 | } | |
1266 | else if (!this->nostdlib()) | |
1267 | { | |
1268 | #ifndef NATIVE_LINKER | |
1269 | #define NATIVE_LINKER 0 | |
1270 | #endif | |
1271 | const char* p = LIB_PATH; | |
1272 | if (strcmp(p, "::DEFAULT::") != 0) | |
1273 | libpath = p; | |
1274 | else if (NATIVE_LINKER | |
1275 | || this->user_set_sysroot() | |
1276 | || *TARGET_SYSTEM_ROOT != '\0') | |
1277 | { | |
1278 | this->add_to_library_path_with_sysroot("/lib"); | |
1279 | this->add_to_library_path_with_sysroot("/usr/lib"); | |
1280 | } | |
1281 | else | |
1282 | this->add_to_library_path_with_sysroot(TOOLLIBDIR); | |
1283 | } | |
706e1f5e | 1284 | |
3f3cddf1 ILT |
1285 | if (!libpath.empty()) |
1286 | { | |
706e1f5e ILT |
1287 | size_t pos = 0; |
1288 | size_t next_pos; | |
1289 | do | |
1290 | { | |
3f3cddf1 | 1291 | next_pos = libpath.find(':', pos); |
706e1f5e ILT |
1292 | size_t len = (next_pos == std::string::npos |
1293 | ? next_pos | |
1294 | : next_pos - pos); | |
1295 | if (len != 0) | |
3f3cddf1 | 1296 | this->add_to_library_path_with_sysroot(libpath.substr(pos, len)); |
706e1f5e ILT |
1297 | pos = next_pos + 1; |
1298 | } | |
1299 | while (next_pos != std::string::npos); | |
1300 | } | |
ee1fe73e | 1301 | |
8c604651 CS |
1302 | // Parse the contents of -retain-symbols-file into a set. |
1303 | if (this->retain_symbols_file()) | |
1304 | { | |
1305 | std::ifstream in; | |
1306 | in.open(this->retain_symbols_file()); | |
1307 | if (!in) | |
bbc5ae17 RM |
1308 | gold_fatal(_("unable to open -retain-symbols-file file %s: %s"), |
1309 | this->retain_symbols_file(), strerror(errno)); | |
8c604651 CS |
1310 | std::string line; |
1311 | std::getline(in, line); // this chops off the trailing \n, if any | |
1312 | while (in) | |
bbc5ae17 RM |
1313 | { |
1314 | if (!line.empty() && line[line.length() - 1] == '\r') // Windows | |
1315 | line.resize(line.length() - 1); | |
1316 | this->symbols_to_retain_.insert(line); | |
1317 | std::getline(in, line); | |
1318 | } | |
8c604651 CS |
1319 | } |
1320 | ||
e2153196 ILT |
1321 | // -Bgroup implies --unresolved-symbols=report-all. |
1322 | if (this->Bgroup() && !this->user_set_unresolved_symbols()) | |
1323 | this->set_unresolved_symbols("report-all"); | |
1324 | ||
1325 | // -shared implies --allow-shlib-undefined. Currently | |
1326 | // ---allow-shlib-undefined controls warnings issued based on the | |
1327 | // -symbol table. --unresolved-symbols controls warnings issued | |
1328 | // -based on relocations. | |
d7ab2a47 KVH |
1329 | if (this->shared() && !this->user_set_allow_shlib_undefined()) |
1330 | this->set_allow_shlib_undefined(true); | |
1331 | ||
ee1fe73e ILT |
1332 | // Normalize library_path() by adding the sysroot to all directories |
1333 | // in the path, as appropriate. | |
1334 | this->add_sysroot(); | |
1335 | ||
1336 | // Now that we've normalized the options, check for contradictory ones. | |
4e1e25e0 CC |
1337 | if (this->shared() && this->is_static()) |
1338 | gold_fatal(_("-shared and -static are incompatible")); | |
374ad285 ILT |
1339 | if (this->shared() && this->pie()) |
1340 | gold_fatal(_("-shared and -pie are incompatible")); | |
f9fa4a63 CC |
1341 | if (this->pie() && this->is_static()) |
1342 | gold_fatal(_("-pie and -static are incompatible")); | |
4e1e25e0 | 1343 | |
ee1fe73e ILT |
1344 | if (this->shared() && this->relocatable()) |
1345 | gold_fatal(_("-shared and -r are incompatible")); | |
374ad285 ILT |
1346 | if (this->pie() && this->relocatable()) |
1347 | gold_fatal(_("-pie and -r are incompatible")); | |
ee1fe73e | 1348 | |
886288f1 ILT |
1349 | if (!this->shared()) |
1350 | { | |
1351 | if (this->filter() != NULL) | |
1352 | gold_fatal(_("-F/--filter may not used without -shared")); | |
1353 | if (this->any_auxiliary()) | |
1354 | gold_fatal(_("-f/--auxiliary may not be used without -shared")); | |
1355 | } | |
1356 | ||
8c604651 CS |
1357 | // TODO: implement support for -retain-symbols-file with -r, if needed. |
1358 | if (this->relocatable() && this->retain_symbols_file()) | |
1359 | gold_fatal(_("-retain-symbols-file does not yet work with -r")); | |
1360 | ||
ee1fe73e | 1361 | if (this->oformat_enum() != General_options::OBJECT_FORMAT_ELF |
374ad285 ILT |
1362 | && (this->shared() |
1363 | || this->pie() | |
1364 | || this->relocatable())) | |
1365 | gold_fatal(_("binary output format not compatible " | |
1366 | "with -shared or -pie or -r")); | |
ee1fe73e | 1367 | |
c18476e7 ILT |
1368 | if (this->user_set_hash_bucket_empty_fraction() |
1369 | && (this->hash_bucket_empty_fraction() < 0.0 | |
1370 | || this->hash_bucket_empty_fraction() >= 1.0)) | |
1371 | gold_fatal(_("--hash-bucket-empty-fraction value %g out of range " | |
1372 | "[0.0, 1.0)"), | |
1373 | this->hash_bucket_empty_fraction()); | |
1374 | ||
8c21d9d3 | 1375 | if (this->implicit_incremental_ && this->incremental_mode_ == INCREMENTAL_OFF) |
266d0a74 | 1376 | gold_fatal(_("Options --incremental-changed, --incremental-unchanged, " |
bbc5ae17 | 1377 | "--incremental-unknown require the use of --incremental")); |
266d0a74 | 1378 | |
403a3331 CC |
1379 | // Check for options that are not compatible with incremental linking. |
1380 | // Where an option can be disabled without seriously changing the semantics | |
1381 | // of the link, we turn the option off; otherwise, we issue a fatal error. | |
1382 | ||
1383 | if (this->incremental_mode_ != INCREMENTAL_OFF) | |
1384 | { | |
1385 | if (this->relocatable()) | |
1386 | gold_fatal(_("incremental linking is not compatible with -r")); | |
1387 | if (this->emit_relocs()) | |
1388 | gold_fatal(_("incremental linking is not compatible with " | |
1389 | "--emit-relocs")); | |
1390 | if (this->has_plugins()) | |
1391 | gold_fatal(_("incremental linking is not compatible with --plugin")); | |
943c8b43 CC |
1392 | if (this->relro()) |
1393 | gold_fatal(_("incremental linking is not compatible with -z relro")); | |
158600eb CC |
1394 | if (this->pie()) |
1395 | gold_fatal(_("incremental linking is not compatible with -pie")); | |
403a3331 CC |
1396 | if (this->gc_sections()) |
1397 | { | |
1398 | gold_warning(_("ignoring --gc-sections for an incremental link")); | |
1399 | this->set_gc_sections(false); | |
1400 | } | |
1401 | if (this->icf_enabled()) | |
1402 | { | |
1403 | gold_warning(_("ignoring --icf for an incremental link")); | |
1404 | this->set_icf_status(ICF_NONE); | |
1405 | } | |
1406 | if (strcmp(this->compress_debug_sections(), "none") != 0) | |
1407 | { | |
1408 | gold_warning(_("ignoring --compress-debug-sections for an " | |
1409 | "incremental link")); | |
1410 | this->set_compress_debug_sections("none"); | |
1411 | } | |
1412 | } | |
1413 | ||
bbc5ae17 RM |
1414 | // --rosegment-gap implies --rosegment. |
1415 | if (this->user_set_rosegment_gap()) | |
1416 | this->set_rosegment(true); | |
1417 | ||
ee1fe73e | 1418 | // FIXME: we can/should be doing a lot more sanity checking here. |
e5756efb ILT |
1419 | } |
1420 | ||
ad2d6943 ILT |
1421 | // Search_directory methods. |
1422 | ||
1423 | // This is called if we have a sysroot. Apply the sysroot if | |
1424 | // appropriate. Record whether the directory is in the sysroot. | |
1425 | ||
1426 | void | |
1427 | Search_directory::add_sysroot(const char* sysroot, | |
bbc5ae17 | 1428 | const char* canonical_sysroot) |
ad2d6943 ILT |
1429 | { |
1430 | gold_assert(*sysroot != '\0'); | |
1431 | if (this->put_in_sysroot_) | |
1432 | { | |
1433 | if (!IS_DIR_SEPARATOR(this->name_[0]) | |
bbc5ae17 RM |
1434 | && !IS_DIR_SEPARATOR(sysroot[strlen(sysroot) - 1])) |
1435 | this->name_ = '/' + this->name_; | |
ad2d6943 ILT |
1436 | this->name_ = sysroot + this->name_; |
1437 | this->is_in_sysroot_ = true; | |
1438 | } | |
1439 | else | |
1440 | { | |
1441 | // Check whether this entry is in the sysroot. To do this | |
1442 | // correctly, we need to use canonical names. Otherwise we will | |
1443 | // get confused by the ../../.. paths that gcc tends to use. | |
1444 | char* canonical_name = lrealpath(this->name_.c_str()); | |
1445 | int canonical_name_len = strlen(canonical_name); | |
1446 | int canonical_sysroot_len = strlen(canonical_sysroot); | |
1447 | if (canonical_name_len > canonical_sysroot_len | |
bbc5ae17 RM |
1448 | && IS_DIR_SEPARATOR(canonical_name[canonical_sysroot_len])) |
1449 | { | |
1450 | canonical_name[canonical_sysroot_len] = '\0'; | |
1451 | if (FILENAME_CMP(canonical_name, canonical_sysroot) == 0) | |
1452 | this->is_in_sysroot_ = true; | |
1453 | } | |
ad2d6943 ILT |
1454 | free(canonical_name); |
1455 | } | |
1456 | } | |
1457 | ||
dbe717ef ILT |
1458 | // Input_arguments methods. |
1459 | ||
1460 | // Add a file to the list. | |
1461 | ||
c7975edd | 1462 | Input_argument& |
cdc29364 | 1463 | Input_arguments::add_file(Input_file_argument& file) |
dbe717ef | 1464 | { |
cdc29364 | 1465 | file.set_arg_serial(++this->file_count_); |
b0193076 | 1466 | if (this->in_group_) |
dbe717ef | 1467 | { |
a3ad94ed ILT |
1468 | gold_assert(!this->input_argument_list_.empty()); |
1469 | gold_assert(this->input_argument_list_.back().is_group()); | |
c7975edd | 1470 | return this->input_argument_list_.back().group()->add_file(file); |
dbe717ef | 1471 | } |
c7975edd | 1472 | if (this->in_lib_) |
b0193076 RÁE |
1473 | { |
1474 | gold_assert(!this->input_argument_list_.empty()); | |
1475 | gold_assert(this->input_argument_list_.back().is_lib()); | |
c7975edd | 1476 | return this->input_argument_list_.back().lib()->add_file(file); |
b0193076 | 1477 | } |
c7975edd CC |
1478 | this->input_argument_list_.push_back(Input_argument(file)); |
1479 | return this->input_argument_list_.back(); | |
dbe717ef ILT |
1480 | } |
1481 | ||
1482 | // Start a group. | |
1483 | ||
1484 | void | |
1485 | Input_arguments::start_group() | |
1486 | { | |
ee1fe73e ILT |
1487 | if (this->in_group_) |
1488 | gold_fatal(_("May not nest groups")); | |
b0193076 RÁE |
1489 | if (this->in_lib_) |
1490 | gold_fatal(_("may not nest groups in libraries")); | |
dbe717ef ILT |
1491 | Input_file_group* group = new Input_file_group(); |
1492 | this->input_argument_list_.push_back(Input_argument(group)); | |
1493 | this->in_group_ = true; | |
1494 | } | |
1495 | ||
1496 | // End a group. | |
1497 | ||
1498 | void | |
1499 | Input_arguments::end_group() | |
1500 | { | |
ee1fe73e ILT |
1501 | if (!this->in_group_) |
1502 | gold_fatal(_("Group end without group start")); | |
dbe717ef ILT |
1503 | this->in_group_ = false; |
1504 | } | |
1505 | ||
b0193076 RÁE |
1506 | // Start a lib. |
1507 | ||
1508 | void | |
1509 | Input_arguments::start_lib(const Position_dependent_options& options) | |
1510 | { | |
1511 | if (this->in_lib_) | |
1512 | gold_fatal(_("may not nest libraries")); | |
1513 | if (this->in_group_) | |
1514 | gold_fatal(_("may not nest libraries in groups")); | |
1515 | Input_file_lib* lib = new Input_file_lib(options); | |
1516 | this->input_argument_list_.push_back(Input_argument(lib)); | |
1517 | this->in_lib_ = true; | |
1518 | } | |
1519 | ||
1520 | // End a lib. | |
1521 | ||
1522 | void | |
1523 | Input_arguments::end_lib() | |
1524 | { | |
1525 | if (!this->in_lib_) | |
1526 | gold_fatal(_("lib end without lib start")); | |
1527 | this->in_lib_ = false; | |
1528 | } | |
1529 | ||
ead1e424 | 1530 | // Command_line options. |
bae7f79e | 1531 | |
a5dc0706 | 1532 | Command_line::Command_line() |
bae7f79e ILT |
1533 | { |
1534 | } | |
1535 | ||
293c1386 CC |
1536 | // Pre_options is the hook that sets the ready_to_register flag. |
1537 | ||
1538 | Command_line::Pre_options::Pre_options() | |
1539 | { | |
1540 | gold::options::ready_to_register = true; | |
1541 | } | |
1542 | ||
ee1fe73e ILT |
1543 | // Process the command line options. For process_one_option, i is the |
1544 | // index of argv to process next, and must be an option (that is, | |
1545 | // start with a dash). The return value is the index of the next | |
1546 | // option to process (i+1 or i+2, or argc to indicate processing is | |
1547 | // done). no_more_options is set to true if (and when) "--" is seen | |
1548 | // as an option. | |
bae7f79e | 1549 | |
a0451b38 | 1550 | int |
ee1fe73e | 1551 | Command_line::process_one_option(int argc, const char** argv, int i, |
bbc5ae17 | 1552 | bool* no_more_options) |
bae7f79e | 1553 | { |
ee1fe73e | 1554 | gold_assert(argv[i][0] == '-' && !(*no_more_options)); |
a0451b38 | 1555 | |
ee1fe73e ILT |
1556 | // If we are reading "--", then just set no_more_options and return. |
1557 | if (argv[i][1] == '-' && argv[i][2] == '\0') | |
bae7f79e | 1558 | { |
ee1fe73e | 1559 | *no_more_options = true; |
a0451b38 ILT |
1560 | return i + 1; |
1561 | } | |
bae7f79e | 1562 | |
ee1fe73e ILT |
1563 | int new_i = i; |
1564 | options::One_option* option = NULL; | |
1565 | const char* arg = NULL; | |
bae7f79e | 1566 | |
ee1fe73e ILT |
1567 | // First, try to process argv as a long option. |
1568 | option = parse_long_option(argc, argv, false, &arg, &new_i); | |
1569 | if (option) | |
a0451b38 | 1570 | { |
ee1fe73e ILT |
1571 | option->reader->parse_to_value(argv[i], arg, this, &this->options_); |
1572 | return new_i; | |
a0451b38 | 1573 | } |
bae7f79e | 1574 | |
ee1fe73e ILT |
1575 | // Now, try to process argv as a short option. Since several short |
1576 | // options can be combined in one argv, we may have to parse a lot | |
1577 | // until we're done reading this argv. | |
1578 | int pos_in_argv_i = 1; | |
1579 | while (new_i == i) | |
a0451b38 | 1580 | { |
ee1fe73e ILT |
1581 | option = parse_short_option(argc, argv, pos_in_argv_i, &arg, &new_i); |
1582 | if (!option) | |
bbc5ae17 | 1583 | break; |
ee1fe73e ILT |
1584 | option->reader->parse_to_value(argv[i], arg, this, &this->options_); |
1585 | ++pos_in_argv_i; | |
a0451b38 | 1586 | } |
ee1fe73e ILT |
1587 | if (option) |
1588 | return new_i; | |
a0451b38 | 1589 | |
ee1fe73e ILT |
1590 | // I guess it's neither a long option nor a short option. |
1591 | usage(_("unknown option"), argv[i]); | |
1592 | return argc; | |
a0451b38 | 1593 | } |
bae7f79e | 1594 | |
bae7f79e | 1595 | |
a0451b38 | 1596 | void |
ee1fe73e | 1597 | Command_line::process(int argc, const char** argv) |
a0451b38 ILT |
1598 | { |
1599 | bool no_more_options = false; | |
1600 | int i = 0; | |
1601 | while (i < argc) | |
ead1e424 | 1602 | { |
ee1fe73e ILT |
1603 | this->position_options_.copy_from_options(this->options()); |
1604 | if (no_more_options || argv[i][0] != '-') | |
bbc5ae17 | 1605 | { |
ae3b5189 CD |
1606 | Input_file_argument file(argv[i], |
1607 | Input_file_argument::INPUT_FILE_TYPE_FILE, | |
1608 | "", false, this->position_options_); | |
bbc5ae17 RM |
1609 | this->inputs_.add_file(file); |
1610 | ++i; | |
1611 | } | |
bae7f79e | 1612 | else |
bbc5ae17 | 1613 | i = process_one_option(argc, argv, i, &no_more_options); |
bae7f79e | 1614 | } |
bae7f79e | 1615 | |
dbe717ef | 1616 | if (this->inputs_.in_group()) |
ee1fe73e ILT |
1617 | { |
1618 | fprintf(stderr, _("%s: missing group end\n"), program_name); | |
1619 | usage(); | |
1620 | } | |
bae7f79e | 1621 | |
bd2e3511 BP |
1622 | if (this->inputs_.in_lib()) |
1623 | { | |
1624 | fprintf(stderr, _("%s: missing lib end\n"), program_name); | |
1625 | usage(); | |
1626 | } | |
1627 | ||
ee1fe73e ILT |
1628 | // Normalize the options and ensure they don't contradict each other. |
1629 | this->options_.finalize(); | |
bae7f79e | 1630 | } |
61ba1cf9 | 1631 | |
6affe781 ILT |
1632 | // Finalize the version script options and return them. |
1633 | ||
1634 | const Version_script_info& | |
1635 | Command_line::version_script() | |
1636 | { | |
1637 | this->options_.finalize_dynamic_list(); | |
1638 | Version_script_info* vsi = this->script_options_.version_script_info(); | |
1639 | vsi->finalize(); | |
11e32464 | 1640 | return *vsi; |
6affe781 ILT |
1641 | } |
1642 | ||
61ba1cf9 | 1643 | } // End namespace gold. |