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[binutils-gdb.git] / gold / options.cc
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1 // options.c -- handle command line options for gold
3 // Copyright (C) 2006-2022 Free Software Foundation, Inc.
4 // Written by Ian Lance Taylor <iant@google.com>.
6 // This file is part of gold.
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.
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.
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.
23 #include "gold.h"
25 #include <cerrno>
26 #include <cstdlib>
27 #include <cstring>
28 #include <fstream>
29 #include <vector>
30 #include <iostream>
31 #include <sys/stat.h>
32 #include "filenames.h"
33 #include "libiberty.h"
34 #include "demangle.h"
35 #include "../bfd/bfdver.h"
37 #include "debug.h"
38 #include "script.h"
39 #include "target-select.h"
40 #include "options.h"
41 #include "plugin.h"
43 namespace gold
46 General_options
47 Position_dependent_options::default_options_;
49 namespace options
52 // This flag is TRUE if we should register the command-line options as they
53 // are constructed. It is set after construction of the options within
54 // class Position_dependent_options.
55 static bool ready_to_register = false;
57 // This global variable is set up as General_options is constructed.
58 static std::vector<const One_option*> registered_options;
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
62 // one of these data structures.
63 typedef Unordered_map<std::string, One_option*> Option_map;
64 static Option_map* long_options = NULL;
65 static One_option* short_options[128];
67 void
68 One_option::register_option()
70 if (!ready_to_register)
71 return;
73 registered_options.push_back(this);
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;
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;
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')
89 gold_assert(short_options[shortname_as_int] == NULL);
90 short_options[shortname_as_int] = this;
94 void
95 One_option::print() const
97 bool comma = false;
98 printf(" ");
99 int len = 2;
100 if (this->shortname != '\0')
102 len += printf("-%c", this->shortname);
103 if (this->helparg)
105 // -z takes long-names only.
106 gold_assert(this->dashes != DASH_Z);
107 len += printf(" %s", gettext(this->helparg));
109 comma = true;
111 if (!this->longname.empty()
112 && !(this->longname[0] == this->shortname
113 && this->longname[1] == '\0'))
115 if (comma)
116 len += printf(", ");
117 switch (this->dashes)
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();
131 len += printf("%s", this->longname.c_str());
132 if (this->helparg)
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));
141 if (len >= 30)
143 printf("\n");
144 len = 0;
146 for (; len < 30; ++len)
147 std::putchar(' ');
149 printf("%s", gettext(this->helpstring));
150 if (this->is_default)
151 printf(" (%s)", _("default"));
152 printf("\n");
155 void
156 help()
158 printf(_("Usage: %s [options] file...\nOptions:\n"), gold::program_name);
160 std::vector<const One_option*>::const_iterator it;
161 for (it = registered_options.begin(); it != registered_options.end(); ++it)
162 (*it)->print();
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");
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");
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);
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)
195 *retval = true;
198 void
199 parse_uint(const char* option_name, const char* arg, int* retval)
201 char* endptr;
202 *retval = strtol(arg, &endptr, 0);
203 if (*endptr != '\0' || *retval < 0)
204 gold_fatal(_("%s: invalid option value (expected an integer): %s"),
205 option_name, arg);
208 void
209 parse_int(const char* option_name, const char* arg, int* retval)
211 char* endptr;
212 *retval = strtol(arg, &endptr, 0);
213 if (*endptr != '\0')
214 gold_fatal(_("%s: invalid option value (expected an integer): %s"),
215 option_name, arg);
218 void
219 parse_uint64(const char* option_name, const char* arg, uint64_t* retval)
221 char* endptr;
222 *retval = strtoull(arg, &endptr, 0);
223 if (*endptr != '\0')
224 gold_fatal(_("%s: invalid option value (expected an integer): %s"),
225 option_name, arg);
228 void
229 parse_double(const char* option_name, const char* arg, double* retval)
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);
239 void
240 parse_percent(const char* option_name, const char* arg, double* retval)
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);
250 void
251 parse_string(const char* option_name, const char* arg, const char** retval)
253 if (*arg == '\0')
254 gold_fatal(_("%s: must take a non-empty argument"), option_name);
255 *retval = arg;
258 void
259 parse_optional_string(const char*, const char* arg, const char** retval)
261 *retval = arg;
264 void
265 parse_dirlist(const char*, const char* arg, Dir_list* retval)
267 retval->push_back(Search_directory(arg, false));
270 void
271 parse_set(const char*, const char* arg, String_set* retval)
273 retval->insert(std::string(arg));
276 void
277 parse_choices(const char* option_name, const char* arg, const char** retval,
278 const char* choices[], int num_choices)
280 for (int i = 0; i < num_choices; i++)
281 if (strcmp(choices[i], arg) == 0)
283 *retval = arg;
284 return;
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++)
291 choices_list += choices[i];
292 if (i != num_choices - 1)
293 choices_list += ", ";
295 gold_fatal(_("%s: must take one of the following arguments: %s"),
296 option_name, choices_list.c_str());
299 } // End namespace options.
301 // Define the handler for "special" options (set via DEFINE_special).
303 void
304 General_options::parse_help(const char*, const char*, Command_line*)
306 options::help();
307 ::exit(EXIT_SUCCESS);
310 void
311 General_options::parse_version(const char* opt, const char*, Command_line*)
313 bool print_short = (opt[0] == '-' && opt[1] == 'v');
314 gold::print_version(print_short);
315 this->printed_version_ = true;
316 if (!print_short)
317 ::exit(EXIT_SUCCESS);
320 void
321 General_options::parse_V(const char*, const char*, Command_line*)
323 gold::print_version(true);
324 this->printed_version_ = true;
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);
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);
343 void
344 General_options::parse_Bno_symbolic(const char*, const char*,
345 Command_line*)
347 this->bsymbolic_ = BSYMBOLIC_NONE;
350 void
351 General_options::parse_Bsymbolic_functions(const char*, const char*,
352 Command_line*)
354 this->bsymbolic_ = BSYMBOLIC_FUNCTIONS;
357 void
358 General_options::parse_Bsymbolic(const char*, const char*,
359 Command_line*)
361 this->bsymbolic_ = BSYMBOLIC_ALL;
364 void
365 General_options::parse_defsym(const char*, const char* arg,
366 Command_line* cmdline)
368 cmdline->script_options().define_symbol(arg);
371 void
372 General_options::parse_discard_all(const char*, const char*,
373 Command_line*)
375 this->discard_locals_ = DISCARD_ALL;
378 void
379 General_options::parse_discard_locals(const char*, const char*,
380 Command_line*)
382 this->discard_locals_ = DISCARD_LOCALS;
385 void
386 General_options::parse_discard_none(const char*, const char*,
387 Command_line*)
389 this->discard_locals_ = DISCARD_NONE;
392 void
393 General_options::parse_incremental(const char*, const char*,
394 Command_line*)
396 this->incremental_mode_ = INCREMENTAL_AUTO;
399 void
400 General_options::parse_no_incremental(const char*, const char*,
401 Command_line*)
403 this->incremental_mode_ = INCREMENTAL_OFF;
406 void
407 General_options::parse_incremental_full(const char*, const char*,
408 Command_line*)
410 this->incremental_mode_ = INCREMENTAL_FULL;
413 void
414 General_options::parse_incremental_update(const char*, const char*,
415 Command_line*)
417 this->incremental_mode_ = INCREMENTAL_UPDATE;
420 void
421 General_options::parse_incremental_changed(const char*, const char*,
422 Command_line*)
424 this->implicit_incremental_ = true;
425 this->incremental_disposition_ = INCREMENTAL_CHANGED;
428 void
429 General_options::parse_incremental_unchanged(const char*, const char*,
430 Command_line*)
432 this->implicit_incremental_ = true;
433 this->incremental_disposition_ = INCREMENTAL_UNCHANGED;
436 void
437 General_options::parse_incremental_unknown(const char*, const char*,
438 Command_line*)
440 this->implicit_incremental_ = true;
441 this->incremental_disposition_ = INCREMENTAL_CHECK;
444 void
445 General_options::parse_incremental_startup_unchanged(const char*, const char*,
446 Command_line*)
448 this->implicit_incremental_ = true;
449 this->incremental_startup_disposition_ = INCREMENTAL_UNCHANGED;
452 void
453 General_options::parse_library(const char*, const char* arg,
454 Command_line* cmdline)
456 Input_file_argument::Input_file_type type;
457 const char* name;
458 if (arg[0] == ':')
460 type = Input_file_argument::INPUT_FILE_TYPE_SEARCHED_FILE;
461 name = arg + 1;
463 else
465 type = Input_file_argument::INPUT_FILE_TYPE_LIBRARY;
466 name = arg;
468 Input_file_argument file(name, type, "", false, *this);
469 cmdline->inputs().add_file(file);
472 void
473 General_options::parse_plugin(const char*, const char* arg,
474 Command_line*)
476 this->add_plugin(arg);
479 // Parse --plugin-opt.
481 void
482 General_options::parse_plugin_opt(const char*, const char* arg,
483 Command_line*)
485 this->add_plugin_option(arg);
488 void
489 General_options::parse_no_power10_stubs(const char*, const char*,
490 Command_line*)
492 this->set_power10_stubs("no");
493 this->set_user_set_power10_stubs();
496 void
497 General_options::parse_R(const char* option, const char* arg,
498 Command_line* cmdline)
500 struct stat s;
501 if (::stat(arg, &s) != 0 || S_ISDIR(s.st_mode))
502 this->add_to_rpath(arg);
503 else
504 this->parse_just_symbols(option, arg, cmdline);
507 void
508 General_options::parse_just_symbols(const char*, const char* arg,
509 Command_line* cmdline)
511 Input_file_argument file(arg, Input_file_argument::INPUT_FILE_TYPE_FILE,
512 "", true, *this);
513 cmdline->inputs().add_file(file);
516 // Handle --section-start.
518 void
519 General_options::parse_section_start(const char*, const char* arg,
520 Command_line*)
522 const char* eq = strchr(arg, '=');
523 if (eq == NULL)
525 gold_error(_("invalid argument to --section-start; "
526 "must be SECTION=ADDRESS"));
527 return;
530 std::string section_name(arg, eq - arg);
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')
538 gold_error(_("--section-start address missing"));
539 return;
541 uint64_t addr = 0;
542 hex_init();
543 for (; *eq != '\0'; ++eq)
545 if (!hex_p(*eq))
547 gold_error(_("--section-start argument %s is not a valid hex number"),
548 val_start);
549 return;
551 addr <<= 4;
552 addr += hex_value(*eq);
555 this->section_starts_[section_name] = addr;
558 // Look up a --section-start value.
560 bool
561 General_options::section_start(const char* secname, uint64_t* paddr) const
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;
573 void
574 General_options::parse_static(const char*, const char*, Command_line*)
576 this->set_static(true);
579 void
580 General_options::parse_script(const char*, const char* arg,
581 Command_line* cmdline)
583 if (!read_commandline_script(arg, cmdline))
584 gold::gold_fatal(_("unable to parse script file %s"), arg);
587 void
588 General_options::parse_version_script(const char*, const char* arg,
589 Command_line* cmdline)
591 if (!read_version_script(arg, cmdline))
592 gold::gold_fatal(_("unable to parse version script file %s"), arg);
595 void
596 General_options::parse_dynamic_list(const char*, const char* arg,
597 Command_line* cmdline)
599 if (!read_dynamic_list(arg, cmdline, &this->dynamic_list_))
600 gold::gold_fatal(_("unable to parse dynamic-list script file %s"), arg);
601 this->have_dynamic_list_ = true;
604 void
605 General_options::parse_start_group(const char*, const char*,
606 Command_line* cmdline)
608 cmdline->inputs().start_group();
611 void
612 General_options::parse_end_group(const char*, const char*,
613 Command_line* cmdline)
615 cmdline->inputs().end_group();
618 void
619 General_options::parse_start_lib(const char*, const char*,
620 Command_line* cmdline)
622 cmdline->inputs().start_lib(cmdline->position_dependent_options());
625 void
626 General_options::parse_end_lib(const char*, const char*,
627 Command_line* cmdline)
629 cmdline->inputs().end_lib();
632 // The function add_excluded_libs() in ld/ldlang.c of GNU ld breaks up a list
633 // of names separated by commas or colons and puts them in a linked list.
634 // We implement the same parsing of names here but store names in an unordered
635 // map to speed up searching of names.
637 void
638 General_options::parse_exclude_libs(const char*, const char* arg,
639 Command_line*)
641 const char* p = arg;
643 while (*p != '\0')
645 size_t length = strcspn(p, ",:");
646 this->excluded_libs_.insert(std::string(p, length));
647 p += (p[length] ? length + 1 : length);
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.
660 bool
661 General_options::check_excluded_libs(const std::string &name) const
663 Unordered_set<std::string>::const_iterator p;
665 // Exit early for the most common case.
666 if (excluded_libs_.empty())
667 return false;
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;
674 // First strip off any directories in name.
675 const char* basename = lbasename(name.c_str());
677 // Try finding an exact match.
678 p = excluded_libs_.find(std::string(basename));
679 if (p != excluded_libs_.end())
680 return true;
682 // Try matching NAME without ".a" at the end.
683 size_t length = strlen(basename);
684 if ((length >= 2)
685 && (basename[length - 2] == '.')
686 && (basename[length - 1] == 'a'))
688 p = excluded_libs_.find(std::string(basename, length - 2));
689 if (p != excluded_libs_.end())
690 return true;
693 return false;
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".
703 General_options::Object_format
704 General_options::string_to_object_format(const char* arg)
706 if (strncmp(arg, "elf", 3) == 0 || strcmp(arg, "default") == 0)
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
712 gold::gold_error(_("format '%s' not supported; treating as elf "
713 "(supported formats: elf, binary)"),
714 arg);
715 return gold::General_options::OBJECT_FORMAT_ELF;
719 const char*
720 General_options::object_format_to_string(General_options::Object_format fmt)
722 switch (fmt)
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();
733 void
734 General_options::parse_fix_v4bx(const char*, const char*,
735 Command_line*)
737 this->fix_v4bx_ = FIX_V4BX_REPLACE;
740 void
741 General_options::parse_fix_v4bx_interworking(const char*, const char*,
742 Command_line*)
744 this->fix_v4bx_ = FIX_V4BX_INTERWORKING;
747 void
748 General_options::parse_EB(const char*, const char*, Command_line*)
750 this->endianness_ = ENDIANNESS_BIG;
753 void
754 General_options::parse_EL(const char*, const char*, Command_line*)
756 this->endianness_ = ENDIANNESS_LITTLE;
759 void
760 General_options::copy_from_posdep_options(
761 const Position_dependent_options& posdep)
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());
771 void
772 General_options::parse_push_state(const char*, const char*, Command_line*)
774 Position_dependent_options* posdep = new Position_dependent_options(*this);
775 this->options_stack_.push_back(posdep);
778 void
779 General_options::parse_pop_state(const char*, const char*, Command_line*)
781 if (this->options_stack_.empty())
783 gold::gold_error(_("unbalanced --push-state/--pop-state"));
784 return;
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;
792 } // End namespace gold.
794 namespace
797 void
798 usage()
800 fprintf(stderr,
801 _("%s: use the --help option for usage information\n"),
802 gold::program_name);
803 ::exit(EXIT_FAILURE);
806 void
807 usage(const char* msg, const char* opt)
809 fprintf(stderr,
810 _("%s: %s: %s\n"),
811 gold::program_name, opt, msg);
812 usage();
815 // If the default sysroot is relocatable, try relocating it based on
816 // the prefix FROM.
818 static char*
819 get_relative_sysroot(const char* from)
821 char* path = make_relative_prefix(gold::program_name, from,
822 TARGET_SYSTEM_ROOT);
823 if (path != NULL)
825 struct stat s;
826 if (::stat(path, &s) == 0 && S_ISDIR(s.st_mode))
827 return path;
828 free(path);
831 return NULL;
834 // Return the default sysroot. This is set by the --with-sysroot
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.
839 static const char*
840 get_default_sysroot()
842 const char* sysroot = TARGET_SYSTEM_ROOT;
843 if (*sysroot == '\0')
844 return NULL;
846 if (TARGET_SYSTEM_ROOT_RELOCATABLE)
848 char* path = get_relative_sysroot(BINDIR);
849 if (path == NULL)
850 path = get_relative_sysroot(TOOLBINDIR);
851 if (path != NULL)
852 return path;
855 return sysroot;
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,
869 const char** arg, int* i)
871 const char* const this_argv = argv[*i];
873 const char* equals = strchr(this_argv, '=');
874 const char* option_start = this_argv + strspn(this_argv, "-");
875 std::string option(option_start,
876 equals ? equals - option_start : strlen(option_start));
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;
883 gold::options::One_option* retval = it->second;
885 // If the dash-count doesn't match, we fail.
886 if (this_argv[0] != '-') // no dashes at all: had better be "-z <longopt>"
888 if (retval->dashes != gold::options::DASH_Z)
889 return NULL;
891 else if (this_argv[1] != '-') // one dash
893 if (retval->dashes != gold::options::ONE_DASH
894 && retval->dashes != gold::options::EXACTLY_ONE_DASH
895 && retval->dashes != gold::options::TWO_DASHES)
896 return NULL;
898 else // two dashes (or more!)
900 if (retval->dashes != gold::options::TWO_DASHES
901 && retval->dashes != gold::options::EXACTLY_TWO_DASHES
902 && retval->dashes != gold::options::ONE_DASH)
903 return NULL;
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);
910 // Figure out the option's argument, if any.
911 if (!retval->takes_argument())
913 if (equals)
914 usage(_("unexpected argument"), this_argv);
915 else
916 *arg = NULL;
918 else
920 if (equals)
921 *arg = equals + 1;
922 else if (retval->takes_optional_argument())
923 *arg = retval->default_value;
924 else if (*i < argc && !equals_only)
925 *arg = argv[(*i)++];
926 else
927 usage(_("missing argument"), this_argv);
930 return retval;
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,
945 const char** arg, int* i)
947 const char* const this_argv = argv[*i];
949 if (this_argv[0] != '-')
950 return NULL;
952 // We handle -z as a special case.
953 static gold::options::One_option dash_z("", gold::options::DASH_Z,
954 'z', "", NULL, "Z-OPTION", false,
955 NULL, false);
956 gold::options::One_option* retval = NULL;
957 if (this_argv[pos_in_argv_i] == 'z')
958 retval = &dash_z;
959 else
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)
963 retval = gold::options::short_options[char_as_int];
966 if (retval == NULL)
967 return NULL;
969 // Figure out the option's argument, if any.
970 if (!retval->takes_argument())
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')
975 ++(*i);
977 else
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')
982 *arg = this_argv + pos_in_argv_i + 1;
983 else if (retval->takes_optional_argument())
984 *arg = retval->default_value;
985 else if (*i < argc)
986 *arg = argv[(*i)++];
987 else
988 usage(_("missing argument"), this_argv);
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)
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)
999 usage(_("unknown -z option"), dash_z_arg);
1002 return retval;
1005 } // End anonymous namespace.
1007 namespace gold
1010 General_options::General_options()
1011 : bsymbolic_(BSYMBOLIC_NONE),
1012 printed_version_(false),
1013 execstack_status_(EXECSTACK_FROM_INPUT),
1014 icf_status_(ICF_NONE),
1015 static_(false),
1016 do_demangle_(false),
1017 plugins_(NULL),
1018 dynamic_list_(),
1019 have_dynamic_list_(false),
1020 incremental_mode_(INCREMENTAL_OFF),
1021 incremental_disposition_(INCREMENTAL_STARTUP),
1022 incremental_startup_disposition_(INCREMENTAL_CHECK),
1023 implicit_incremental_(false),
1024 excluded_libs_(),
1025 symbols_to_retain_(),
1026 section_starts_(),
1027 fix_v4bx_(FIX_V4BX_NONE),
1028 endianness_(ENDIANNESS_NOT_SET),
1029 discard_locals_(DISCARD_SEC_MERGE),
1030 orphan_handling_enum_(ORPHAN_PLACE),
1031 start_stop_visibility_enum_(elfcpp::STV_PROTECTED)
1033 // Turn off option registration once construction is complete.
1034 gold::options::ready_to_register = false;
1037 General_options::Object_format
1038 General_options::format_enum() const
1040 return General_options::string_to_object_format(this->format());
1043 General_options::Object_format
1044 General_options::oformat_enum() const
1046 return General_options::string_to_object_format(this->oformat());
1049 // Add the sysroot, if any, to the search paths.
1051 void
1052 General_options::add_sysroot()
1054 if (this->sysroot() == NULL || this->sysroot()[0] == '\0')
1056 this->set_sysroot(get_default_sysroot());
1057 if (this->sysroot() == NULL || this->sysroot()[0] == '\0')
1058 return;
1061 char* canonical_sysroot = lrealpath(this->sysroot());
1063 for (Dir_list::iterator p = this->library_path_.value.begin();
1064 p != this->library_path_.value.end();
1065 ++p)
1066 p->add_sysroot(this->sysroot(), canonical_sysroot);
1068 free(canonical_sysroot);
1071 // Return whether FILENAME is in a system directory.
1073 bool
1074 General_options::is_in_system_directory(const std::string& filename) const
1076 for (Dir_list::const_iterator p = this->library_path_.value.begin();
1077 p != this->library_path_.value.end();
1078 ++p)
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;
1088 return false;
1091 // Add a plugin to the list of plugins.
1093 void
1094 General_options::add_plugin(const char* filename)
1096 if (this->plugins_ == NULL)
1097 this->plugins_ = new Plugin_manager(*this);
1098 this->plugins_->add_plugin(filename);
1101 // Add a plugin option to a plugin.
1103 void
1104 General_options::add_plugin_option(const char* arg)
1106 if (this->plugins_ == NULL)
1107 gold_fatal("--plugin-opt requires --plugin.");
1108 this->plugins_->add_plugin_option(arg);
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.
1115 void
1116 General_options::finalize()
1118 // Normalize the strip modifiers. They have a total order:
1119 // strip_all > strip_debug > strip_non_line > strip_debug_gdb.
1120 // If one is true, set all beneath it to true as well.
1121 if (this->strip_all())
1122 this->set_strip_debug(true);
1123 if (this->strip_debug())
1124 this->set_strip_debug_non_line(true);
1125 if (this->strip_debug_non_line())
1126 this->set_strip_debug_gdb(true);
1128 if (this->Bshareable())
1129 this->set_shared(true);
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())
1135 this->set_strip_all(false);
1136 gold_assert(this->strip_debug());
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);
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());
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);
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);
1166 // Handle the optional argument for --demangle.
1167 if (this->user_set_demangle())
1169 this->set_do_demangle(true);
1170 const char* style = this->demangle();
1171 if (*style != '\0')
1173 enum demangling_styles style_code;
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);
1181 else if (this->user_set_no_demangle())
1182 this->set_do_demangle(false);
1183 else
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);
1190 // Parse the --orphan-handling argument.
1191 if (this->user_set_orphan_handling())
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);
1203 // Parse the -z start-stop-visibility argument.
1204 if (this->user_set_start_stop_visibility())
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);
1216 // Parse the --power10-stubs argument.
1217 if (!this->user_set_power10_stubs())
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);
1227 else
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);
1237 // -M is equivalent to "-Map -".
1238 if (this->print_map() && !this->user_set_Map())
1240 this->set_Map("-");
1241 this->set_user_set_Map();
1244 // Using -n or -N implies -static.
1245 if (this->nmagic() || this->omagic())
1246 this->set_static(true);
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());
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())
1262 gold_warning(_("ignoring --threads: "
1263 "%s was compiled without thread support"),
1264 program_name);
1265 this->set_threads(false);
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: "
1270 "%s was compiled without thread support"),
1271 program_name);
1272 #endif
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
1281 std::string libpath;
1282 if (this->user_set_Y())
1284 libpath = this->Y();
1285 if (libpath.compare(0, 2, "P,") == 0)
1286 libpath.erase(0, 2);
1288 else if (!this->nostdlib())
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')
1300 this->add_to_library_path_with_sysroot("/lib");
1301 this->add_to_library_path_with_sysroot("/usr/lib");
1303 else
1304 this->add_to_library_path_with_sysroot(TOOLLIBDIR);
1307 if (!libpath.empty())
1309 size_t pos = 0;
1310 size_t next_pos;
1313 next_pos = libpath.find(':', pos);
1314 size_t len = (next_pos == std::string::npos
1315 ? next_pos
1316 : next_pos - pos);
1317 if (len != 0)
1318 this->add_to_library_path_with_sysroot(libpath.substr(pos, len));
1319 pos = next_pos + 1;
1321 while (next_pos != std::string::npos);
1324 // Parse the contents of -retain-symbols-file into a set.
1325 if (this->retain_symbols_file())
1327 std::ifstream in;
1328 in.open(this->retain_symbols_file());
1329 if (!in)
1330 gold_fatal(_("unable to open -retain-symbols-file file %s: %s"),
1331 this->retain_symbols_file(), strerror(errno));
1332 std::string line;
1333 std::getline(in, line); // this chops off the trailing \n, if any
1334 while (in)
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);
1343 // -Bgroup implies --unresolved-symbols=report-all.
1344 if (this->Bgroup() && !this->user_set_unresolved_symbols())
1345 this->set_unresolved_symbols("report-all");
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.
1351 if (this->shared() && !this->user_set_allow_shlib_undefined())
1352 this->set_allow_shlib_undefined(true);
1354 // Normalize library_path() by adding the sysroot to all directories
1355 // in the path, as appropriate.
1356 this->add_sysroot();
1358 // Now that we've normalized the options, check for contradictory ones.
1359 if (this->shared() && this->is_static())
1360 gold_fatal(_("-shared and -static are incompatible"));
1361 if (this->shared() && this->pie())
1362 gold_fatal(_("-shared and -pie are incompatible"));
1363 if (this->pie() && this->is_static())
1364 gold_fatal(_("-pie and -static are incompatible"));
1366 if (this->shared() && this->relocatable())
1367 gold_fatal(_("-shared and -r are incompatible"));
1368 if (this->pie() && this->relocatable())
1369 gold_fatal(_("-pie and -r are incompatible"));
1371 if (!this->shared())
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"));
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"));
1383 if (this->oformat_enum() != General_options::OBJECT_FORMAT_ELF
1384 && (this->shared()
1385 || this->pie()
1386 || this->relocatable()))
1387 gold_fatal(_("binary output format not compatible "
1388 "with -shared or -pie or -r"));
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());
1397 if (this->implicit_incremental_ && this->incremental_mode_ == INCREMENTAL_OFF)
1398 gold_fatal(_("Options --incremental-changed, --incremental-unchanged, "
1399 "--incremental-unknown require the use of --incremental"));
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.
1405 if (this->incremental_mode_ != INCREMENTAL_OFF)
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"));
1414 if (this->relro())
1415 gold_fatal(_("incremental linking is not compatible with -z relro"));
1416 if (this->pie())
1417 gold_fatal(_("incremental linking is not compatible with -pie"));
1418 if (this->gc_sections())
1420 gold_warning(_("ignoring --gc-sections for an incremental link"));
1421 this->set_gc_sections(false);
1423 if (this->icf_enabled())
1425 gold_warning(_("ignoring --icf for an incremental link"));
1426 this->set_icf_status(ICF_NONE);
1428 if (strcmp(this->compress_debug_sections(), "none") != 0)
1430 gold_warning(_("ignoring --compress-debug-sections for an "
1431 "incremental link"));
1432 this->set_compress_debug_sections("none");
1436 // --rosegment-gap implies --rosegment.
1437 if (this->user_set_rosegment_gap())
1438 this->set_rosegment(true);
1440 // FIXME: we can/should be doing a lot more sanity checking here.
1443 // Search_directory methods.
1445 // This is called if we have a sysroot. Apply the sysroot if
1446 // appropriate. Record whether the directory is in the sysroot.
1448 void
1449 Search_directory::add_sysroot(const char* sysroot,
1450 const char* canonical_sysroot)
1452 gold_assert(*sysroot != '\0');
1453 if (this->put_in_sysroot_)
1455 if (!IS_DIR_SEPARATOR(this->name_[0])
1456 && !IS_DIR_SEPARATOR(sysroot[strlen(sysroot) - 1]))
1457 this->name_ = '/' + this->name_;
1458 this->name_ = sysroot + this->name_;
1459 this->is_in_sysroot_ = true;
1461 else
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
1470 && IS_DIR_SEPARATOR(canonical_name[canonical_sysroot_len]))
1472 canonical_name[canonical_sysroot_len] = '\0';
1473 if (FILENAME_CMP(canonical_name, canonical_sysroot) == 0)
1474 this->is_in_sysroot_ = true;
1476 free(canonical_name);
1480 // Input_arguments methods.
1482 // Add a file to the list.
1484 Input_argument&
1485 Input_arguments::add_file(Input_file_argument& file)
1487 file.set_arg_serial(++this->file_count_);
1488 if (this->in_group_)
1490 gold_assert(!this->input_argument_list_.empty());
1491 gold_assert(this->input_argument_list_.back().is_group());
1492 return this->input_argument_list_.back().group()->add_file(file);
1494 if (this->in_lib_)
1496 gold_assert(!this->input_argument_list_.empty());
1497 gold_assert(this->input_argument_list_.back().is_lib());
1498 return this->input_argument_list_.back().lib()->add_file(file);
1500 this->input_argument_list_.push_back(Input_argument(file));
1501 return this->input_argument_list_.back();
1504 // Start a group.
1506 void
1507 Input_arguments::start_group()
1509 if (this->in_group_)
1510 gold_fatal(_("May not nest groups"));
1511 if (this->in_lib_)
1512 gold_fatal(_("may not nest groups in libraries"));
1513 Input_file_group* group = new Input_file_group();
1514 this->input_argument_list_.push_back(Input_argument(group));
1515 this->in_group_ = true;
1518 // End a group.
1520 void
1521 Input_arguments::end_group()
1523 if (!this->in_group_)
1524 gold_fatal(_("Group end without group start"));
1525 this->in_group_ = false;
1528 // Start a lib.
1530 void
1531 Input_arguments::start_lib(const Position_dependent_options& options)
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;
1542 // End a lib.
1544 void
1545 Input_arguments::end_lib()
1547 if (!this->in_lib_)
1548 gold_fatal(_("lib end without lib start"));
1549 this->in_lib_ = false;
1552 // Command_line options.
1554 Command_line::Command_line()
1558 // Pre_options is the hook that sets the ready_to_register flag.
1560 Command_line::Pre_options::Pre_options()
1562 gold::options::ready_to_register = true;
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.
1573 Command_line::process_one_option(int argc, const char** argv, int i,
1574 bool* no_more_options)
1576 gold_assert(argv[i][0] == '-' && !(*no_more_options));
1578 // If we are reading "--", then just set no_more_options and return.
1579 if (argv[i][1] == '-' && argv[i][2] == '\0')
1581 *no_more_options = true;
1582 return i + 1;
1585 int new_i = i;
1586 options::One_option* option = NULL;
1587 const char* arg = NULL;
1589 // First, try to process argv as a long option.
1590 option = parse_long_option(argc, argv, false, &arg, &new_i);
1591 if (option)
1593 option->reader->parse_to_value(argv[i], arg, this, &this->options_);
1594 return new_i;
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)
1603 option = parse_short_option(argc, argv, pos_in_argv_i, &arg, &new_i);
1604 if (!option)
1605 break;
1606 option->reader->parse_to_value(argv[i], arg, this, &this->options_);
1607 ++pos_in_argv_i;
1609 if (option)
1610 return new_i;
1612 // I guess it's neither a long option nor a short option.
1613 usage(_("unknown option"), argv[i]);
1614 return argc;
1618 void
1619 Command_line::process(int argc, const char** argv)
1621 bool no_more_options = false;
1622 int i = 0;
1623 while (i < argc)
1625 this->position_options_.copy_from_options(this->options());
1626 if (no_more_options || argv[i][0] != '-')
1628 Input_file_argument file(argv[i],
1629 Input_file_argument::INPUT_FILE_TYPE_FILE,
1630 "", false, this->position_options_);
1631 this->inputs_.add_file(file);
1632 ++i;
1634 else
1635 i = process_one_option(argc, argv, i, &no_more_options);
1638 if (this->inputs_.in_group())
1640 fprintf(stderr, _("%s: missing group end\n"), program_name);
1641 usage();
1644 if (this->inputs_.in_lib())
1646 fprintf(stderr, _("%s: missing lib end\n"), program_name);
1647 usage();
1650 // Normalize the options and ensure they don't contradict each other.
1651 this->options_.finalize();
1654 // Finalize the version script options and return them.
1656 const Version_script_info&
1657 Command_line::version_script()
1659 this->options_.finalize_dynamic_list();
1660 Version_script_info* vsi = this->script_options_.version_script_info();
1661 vsi->finalize();
1662 return *vsi;
1665 } // End namespace gold.