1 // options.c -- handle command line options for gold
3 // Copyright 2006, 2007, 2008 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.
28 #include "filenames.h"
29 #include "libiberty.h"
38 // The information we keep for a single command line option.
40 struct options::One_option
42 // The single character option name, or '\0' if this is only a long
46 // The long option name, or NULL if this is only a short option.
47 const char* long_option;
49 // Description of the option for --help output, or NULL if there is none.
52 // How to print the option name in --help output, or NULL to use the
54 const char* help_output;
56 // Long option dash control. This is ignored if long_option is
60 // Long option normally takes one dash; two dashes are also
63 // Long option normally takes two dashes; one dash is also
66 // Long option always takes two dashes.
70 // Function for special handling, or NULL. Returns the number of
71 // arguments to skip. This will normally be at least 1, but it may
72 // be 0 if this function changes *argv. ARG points to the location
73 // in *ARGV where the option starts, which may be helpful for a
75 int (*special)(int argc, char** argv, char *arg, bool long_option,
78 // If this is a position independent option which does not take an
79 // argument, this is the member function to call to record it.
80 void (General_options::*general_noarg)();
82 // If this is a position independent function which takes an
83 // argument, this is the member function to call to record it.
84 void (General_options::*general_arg)(const char*);
86 // If this is a position dependent option which does not take an
87 // argument, this is the member function to call to record it.
88 void (Position_dependent_options::*dependent_noarg)();
90 // If this is a position dependent option which takes an argument,
91 // this is the member function to record it.
92 void (Position_dependent_options::*dependent_arg)(const char*);
94 // Return whether this option takes an argument.
96 takes_argument() const
97 { return this->general_arg != NULL || this->dependent_arg != NULL; }
100 // We have a separate table for -z options.
102 struct options::One_z_option
104 // The name of the option.
107 // The member function in General_options called to record it.
108 void (General_options::*set)();
111 // We have a separate table for --debug options.
113 struct options::One_debug_option
115 // The name of the option.
118 // The flags to turn on.
119 unsigned int debug_flags;
122 class options::Command_line_options
125 static const One_option options[];
126 static const int options_size;
127 static const One_z_option z_options[];
128 static const int z_options_size;
129 static const One_debug_option debug_options[];
130 static const int debug_options_size;
133 } // End namespace gold.
138 // Handle the special -l option, which adds an input file.
141 library(int argc, char** argv, char* arg, bool long_option,
142 gold::Command_line* cmdline)
144 return cmdline->process_l_option(argc, argv, arg, long_option);
147 // Handle the special -T/--script option, which reads a linker script.
150 invoke_script(int argc, char** argv, char* arg, bool long_option,
151 gold::Command_line* cmdline)
154 const char* script_name = cmdline->get_special_argument("script", argc, argv,
157 if (!read_commandline_script(script_name, cmdline))
158 gold::gold_error(_("unable to parse script file %s"), script_name);
162 // Handle the special --start-group option.
165 start_group(int, char**, char* arg, bool, gold::Command_line* cmdline)
167 cmdline->start_group(arg);
171 // Handle the special --end-group option.
174 end_group(int, char**, char* arg, bool, gold::Command_line* cmdline)
176 cmdline->end_group(arg);
180 // Report usage information for ld --help, and exit.
183 help(int, char**, char*, bool, gold::Command_line*)
185 printf(_("Usage: %s [options] file...\nOptions:\n"), gold::program_name);
187 const int options_size = gold::options::Command_line_options::options_size;
188 const gold::options::One_option* options =
189 gold::options::Command_line_options::options;
190 for (int i = 0; i < options_size; ++i)
192 if (options[i].doc == NULL)
202 if (options[j].help_output != NULL)
209 printf(options[j].help_output);
210 len += std::strlen(options[i].help_output);
215 if (options[j].short_option != '\0')
222 printf("-%c", options[j].short_option);
227 if (options[j].long_option != NULL)
234 if (options[j].dash == gold::options::One_option::ONE_DASH)
244 printf("%s", options[j].long_option);
245 len += std::strlen(options[j].long_option);
251 while (j < options_size && options[j].doc == NULL);
258 for (; len < 30; ++len)
261 std::puts(options[i].doc);
264 ::exit(EXIT_SUCCESS);
269 // Report version information.
272 version(int, char**, char* opt, bool, gold::Command_line*)
274 gold::print_version(opt[0] == 'v' && opt[1] == '\0');
275 ::exit(EXIT_SUCCESS);
279 // If the default sysroot is relocatable, try relocating it based on
283 get_relative_sysroot(const char* from)
285 char* path = make_relative_prefix(gold::program_name, from,
290 if (::stat(path, &s) == 0 && S_ISDIR(s.st_mode))
298 // Return the default sysroot. This is set by the --with-sysroot
299 // option to configure.
302 get_default_sysroot()
304 const char* sysroot = TARGET_SYSTEM_ROOT;
305 if (*sysroot == '\0')
308 if (TARGET_SYSTEM_ROOT_RELOCATABLE)
310 char* path = get_relative_sysroot (BINDIR);
312 path = get_relative_sysroot (TOOLBINDIR);
315 std::string ret = path;
324 } // End anonymous namespace.
329 // Helper macros used to specify the options. We could also do this
330 // using constructors, but then g++ would generate code to initialize
331 // the array. We want the array to be initialized statically so that
332 // we get better startup time.
334 #define GENERAL_NOARG(short_option, long_option, doc, help, dash, func) \
335 { short_option, long_option, doc, help, options::One_option::dash, \
336 NULL, func, NULL, NULL, NULL }
337 #define GENERAL_ARG(short_option, long_option, doc, help, dash, func) \
338 { short_option, long_option, doc, help, options::One_option::dash, \
339 NULL, NULL, func, NULL, NULL }
340 #define POSDEP_NOARG(short_option, long_option, doc, help, dash, func) \
341 { short_option, long_option, doc, help, options::One_option::dash, \
342 NULL, NULL, NULL, func, NULL }
343 #define POSDEP_ARG(short_option, long_option, doc, help, dash, func) \
344 { short_option, long_option, doc, help, options::One_option::dash, \
345 NULL, NULL, NULL, NULL, func }
346 #define SPECIAL(short_option, long_option, doc, help, dash, func) \
347 { short_option, long_option, doc, help, options::One_option::dash, \
348 func, NULL, NULL, NULL, NULL }
350 // Here is the actual list of options which we accept.
352 const options::One_option
353 options::Command_line_options::options[] =
355 GENERAL_NOARG('\0', "allow-shlib-undefined",
356 N_("Allow unresolved references in shared libraries"),
358 &General_options::set_allow_shlib_undefined),
359 GENERAL_NOARG('\0', "no-allow-shlib-undefined",
360 N_("Do not allow unresolved references in shared libraries"),
362 &General_options::set_no_allow_shlib_undefined),
363 POSDEP_NOARG('\0', "as-needed",
364 N_("Only set DT_NEEDED for dynamic libs if used"),
365 NULL, TWO_DASHES, &Position_dependent_options::set_as_needed),
366 POSDEP_NOARG('\0', "no-as-needed",
367 N_("Always DT_NEEDED for dynamic libs (default)"),
368 NULL, TWO_DASHES, &Position_dependent_options::clear_as_needed),
369 POSDEP_NOARG('\0', "Bdynamic",
370 N_("-l searches for shared libraries"),
372 &Position_dependent_options::set_dynamic_search),
373 POSDEP_NOARG('\0', "Bstatic",
374 N_("-l does not search for shared libraries"),
376 &Position_dependent_options::set_static_search),
377 GENERAL_NOARG('\0', "Bsymbolic", N_("Bind defined symbols locally"),
378 NULL, ONE_DASH, &General_options::set_symbolic),
380 # define ZLIB_STR ",zlib"
384 GENERAL_ARG('\0', "compress-debug-sections",
385 N_("Compress .debug_* sections in the output file "
386 "(default is none)"),
387 N_("--compress-debug-sections=[none" ZLIB_STR "]"),
389 &General_options::set_compress_debug_sections),
390 GENERAL_ARG('\0', "defsym", N_("Define a symbol"),
391 N_("--defsym SYMBOL=EXPRESSION"), TWO_DASHES,
392 &General_options::define_symbol),
393 GENERAL_NOARG('\0', "demangle", N_("Demangle C++ symbols in log messages"),
394 NULL, TWO_DASHES, &General_options::set_demangle),
395 GENERAL_NOARG('\0', "no-demangle",
396 N_("Do not demangle C++ symbols in log messages"),
397 NULL, TWO_DASHES, &General_options::clear_demangle),
398 GENERAL_NOARG('\0', "detect-odr-violations",
399 N_("Try to detect violations of the One Definition Rule"),
400 NULL, TWO_DASHES, &General_options::set_detect_odr_violations),
401 GENERAL_ARG('e', "entry", N_("Set program start address"),
402 N_("-e ADDRESS, --entry ADDRESS"), TWO_DASHES,
403 &General_options::set_entry),
404 GENERAL_NOARG('E', "export-dynamic", N_("Export all dynamic symbols"),
405 NULL, TWO_DASHES, &General_options::set_export_dynamic),
406 GENERAL_NOARG('\0', "eh-frame-hdr", N_("Create exception frame header"),
407 NULL, TWO_DASHES, &General_options::set_create_eh_frame_hdr),
408 GENERAL_ARG('h', "soname", N_("Set shared library name"),
409 N_("-h FILENAME, -soname FILENAME"), ONE_DASH,
410 &General_options::set_soname),
411 GENERAL_ARG('I', "dynamic-linker", N_("Set dynamic linker path"),
412 N_("-I PROGRAM, --dynamic-linker PROGRAM"), TWO_DASHES,
413 &General_options::set_dynamic_linker),
414 SPECIAL('l', "library", N_("Search for library LIBNAME"),
415 N_("-lLIBNAME, --library LIBNAME"), TWO_DASHES,
417 GENERAL_ARG('L', "library-path", N_("Add directory to search path"),
418 N_("-L DIR, --library-path DIR"), TWO_DASHES,
419 &General_options::add_to_search_path),
420 GENERAL_ARG('m', NULL, N_("Ignored for compatibility"), NULL, ONE_DASH,
421 &General_options::ignore),
422 GENERAL_ARG('o', "output", N_("Set output file name"),
423 N_("-o FILE, --output FILE"), TWO_DASHES,
424 &General_options::set_output_file_name),
425 GENERAL_ARG('O', NULL, N_("Optimize output file size"),
426 N_("-O level"), ONE_DASH,
427 &General_options::set_optimization_level),
428 GENERAL_NOARG('r', NULL, N_("Generate relocatable output"), NULL,
429 ONE_DASH, &General_options::set_relocatable),
430 GENERAL_ARG('R', "rpath", N_("Add DIR to runtime search path"),
431 N_("-R DIR, -rpath DIR"), ONE_DASH,
432 &General_options::add_to_rpath),
433 GENERAL_ARG('\0', "rpath-link",
434 N_("Add DIR to link time shared library search path"),
435 N_("--rpath-link DIR"), TWO_DASHES,
436 &General_options::add_to_rpath_link),
437 GENERAL_NOARG('s', "strip-all", N_("Strip all symbols"), NULL,
438 TWO_DASHES, &General_options::set_strip_all),
439 GENERAL_NOARG('\0', "strip-debug-gdb",
440 N_("Strip debug symbols that are unused by gdb "
441 "(at least versions <= 6.7)"),
442 NULL, TWO_DASHES, &General_options::set_strip_debug_gdb),
443 // This must come after -Sdebug since it's a prefix of it.
444 GENERAL_NOARG('S', "strip-debug", N_("Strip debugging information"), NULL,
445 TWO_DASHES, &General_options::set_strip_debug),
446 GENERAL_NOARG('\0', "shared", N_("Generate shared library"),
447 NULL, ONE_DASH, &General_options::set_shared),
448 GENERAL_NOARG('\0', "static", N_("Do not link against shared libraries"),
449 NULL, ONE_DASH, &General_options::set_static),
450 GENERAL_NOARG('\0', "stats", N_("Print resource usage statistics"),
451 NULL, TWO_DASHES, &General_options::set_stats),
452 GENERAL_ARG('\0', "sysroot", N_("Set target system root directory"),
453 N_("--sysroot DIR"), TWO_DASHES, &General_options::set_sysroot),
454 GENERAL_ARG('\0', "Ttext", N_("Set the address of the .text section"),
455 N_("-Ttext ADDRESS"), ONE_DASH,
456 &General_options::set_text_segment_address),
457 // This must come after -Ttext since it's a prefix of it.
458 SPECIAL('T', "script", N_("Read linker script"),
459 N_("-T FILE, --script FILE"), TWO_DASHES,
461 GENERAL_NOARG('\0', "threads", N_("Run the linker multi-threaded"),
462 NULL, TWO_DASHES, &General_options::set_threads),
463 GENERAL_NOARG('\0', "no-threads", N_("Do not run the linker multi-threaded"),
464 NULL, TWO_DASHES, &General_options::clear_threads),
465 GENERAL_ARG('\0', "thread-count", N_("Number of threads to use"),
466 N_("--thread-count COUNT"), TWO_DASHES,
467 &General_options::set_thread_count),
468 GENERAL_ARG('\0', "thread-count-initial",
469 N_("Number of threads to use in initial pass"),
470 N_("--thread-count-initial COUNT"), TWO_DASHES,
471 &General_options::set_thread_count_initial),
472 GENERAL_ARG('\0', "thread-count-middle",
473 N_("Number of threads to use in middle pass"),
474 N_("--thread-count-middle COUNT"), TWO_DASHES,
475 &General_options::set_thread_count_middle),
476 GENERAL_ARG('\0', "thread-count-final",
477 N_("Number of threads to use in final pass"),
478 N_("--thread-count-final COUNT"), TWO_DASHES,
479 &General_options::set_thread_count_final),
480 POSDEP_NOARG('\0', "whole-archive",
481 N_("Include all archive contents"),
483 &Position_dependent_options::set_whole_archive),
484 POSDEP_NOARG('\0', "no-whole-archive",
485 N_("Include only needed archive contents"),
487 &Position_dependent_options::clear_whole_archive),
489 GENERAL_ARG('z', NULL,
490 N_("Subcommands as follows:\n\
491 -z execstack Mark output as requiring executable stack\n\
492 -z noexecstack Mark output as not requiring executable stack"),
493 N_("-z SUBCOMMAND"), ONE_DASH,
494 &General_options::handle_z_option),
496 SPECIAL('(', "start-group", N_("Start a library search group"), NULL,
497 TWO_DASHES, &start_group),
498 SPECIAL(')', "end-group", N_("End a library search group"), NULL,
499 TWO_DASHES, &end_group),
500 SPECIAL('\0', "help", N_("Report usage information"), NULL,
502 SPECIAL('v', "version", N_("Report version information"), NULL,
503 TWO_DASHES, &version),
504 GENERAL_ARG('\0', "debug", N_("Turn on debugging (all,task)"),
505 N_("--debug=TYPE"), TWO_DASHES,
506 &General_options::handle_debug_option)
509 const int options::Command_line_options::options_size =
510 sizeof (options) / sizeof (options[0]);
514 const options::One_z_option
515 options::Command_line_options::z_options[] =
517 { "execstack", &General_options::set_execstack },
518 { "noexecstack", &General_options::set_noexecstack },
521 const int options::Command_line_options::z_options_size =
522 sizeof(z_options) / sizeof(z_options[0]);
524 // The --debug options.
526 const options::One_debug_option
527 options::Command_line_options::debug_options[] =
529 { "all", DEBUG_ALL },
530 { "task", DEBUG_TASK },
533 const int options::Command_line_options::debug_options_size =
534 sizeof(debug_options) / sizeof(debug_options[0]);
536 // The default values for the general options.
538 General_options::General_options(Script_options* script_options)
539 : export_dynamic_(false),
541 dynamic_linker_(NULL),
543 optimization_level_(0),
544 output_file_name_("a.out"),
545 is_relocatable_(false),
547 allow_shlib_undefined_(false),
549 compress_debug_sections_(NO_COMPRESSION),
550 detect_odr_violations_(false),
551 create_eh_frame_hdr_(false),
558 text_segment_address_(-1U), // -1 indicates value not set by user
560 thread_count_initial_(0),
561 thread_count_middle_(0),
562 thread_count_final_(0),
563 execstack_(EXECSTACK_FROM_INPUT),
565 script_options_(script_options)
567 // We initialize demangle_ based on the environment variable
568 // COLLECT_NO_DEMANGLE. The gcc collect2 program will demangle the
569 // output of the linker, unless COLLECT_NO_DEMANGLE is set in the
570 // environment. Acting the same way here lets us provide the same
571 // interface by default.
572 this->demangle_ = getenv("COLLECT_NO_DEMANGLE") == NULL;
575 // Handle the --defsym option.
578 General_options::define_symbol(const char* arg)
580 this->script_options_->define_symbol(arg);
583 // Handle the -z option.
586 General_options::handle_z_option(const char* arg)
588 const int z_options_size = options::Command_line_options::z_options_size;
589 const gold::options::One_z_option* z_options =
590 gold::options::Command_line_options::z_options;
591 for (int i = 0; i < z_options_size; ++i)
593 if (strcmp(arg, z_options[i].name) == 0)
595 (this->*(z_options[i].set))();
600 fprintf(stderr, _("%s: unrecognized -z subcommand: %s\n"),
602 ::exit(EXIT_FAILURE);
605 // Handle the --debug option.
608 General_options::handle_debug_option(const char* arg)
610 const int debug_options_size =
611 options::Command_line_options::debug_options_size;
612 const gold::options::One_debug_option* debug_options =
613 options::Command_line_options::debug_options;
614 for (int i = 0; i < debug_options_size; ++i)
616 if (strcmp(arg, debug_options[i].name) == 0)
618 this->set_debug(debug_options[i].debug_flags);
623 fprintf(stderr, _("%s: unrecognized --debug subcommand: %s\n"),
625 ::exit(EXIT_FAILURE);
628 // Add the sysroot, if any, to the search paths.
631 General_options::add_sysroot()
633 if (this->sysroot_.empty())
635 this->sysroot_ = get_default_sysroot();
636 if (this->sysroot_.empty())
640 const char* sysroot = this->sysroot_.c_str();
641 char* canonical_sysroot = lrealpath(sysroot);
643 for (Dir_list::iterator p = this->search_path_.begin();
644 p != this->search_path_.end();
646 p->add_sysroot(sysroot, canonical_sysroot);
648 free(canonical_sysroot);
651 // The default values for the position dependent options.
653 Position_dependent_options::Position_dependent_options()
654 : do_static_search_(false),
656 include_whole_archive_(false)
660 // Search_directory methods.
662 // This is called if we have a sysroot. Apply the sysroot if
663 // appropriate. Record whether the directory is in the sysroot.
666 Search_directory::add_sysroot(const char* sysroot,
667 const char* canonical_sysroot)
669 gold_assert(*sysroot != '\0');
670 if (this->put_in_sysroot_)
672 if (!IS_DIR_SEPARATOR(this->name_[0])
673 && !IS_DIR_SEPARATOR(sysroot[strlen(sysroot) - 1]))
674 this->name_ = '/' + this->name_;
675 this->name_ = sysroot + this->name_;
676 this->is_in_sysroot_ = true;
680 // Check whether this entry is in the sysroot. To do this
681 // correctly, we need to use canonical names. Otherwise we will
682 // get confused by the ../../.. paths that gcc tends to use.
683 char* canonical_name = lrealpath(this->name_.c_str());
684 int canonical_name_len = strlen(canonical_name);
685 int canonical_sysroot_len = strlen(canonical_sysroot);
686 if (canonical_name_len > canonical_sysroot_len
687 && IS_DIR_SEPARATOR(canonical_name[canonical_sysroot_len]))
689 canonical_name[canonical_sysroot_len] = '\0';
690 if (FILENAME_CMP(canonical_name, canonical_sysroot) == 0)
691 this->is_in_sysroot_ = true;
693 free(canonical_name);
697 // Input_arguments methods.
699 // Add a file to the list.
702 Input_arguments::add_file(const Input_file_argument& file)
704 if (!this->in_group_)
705 this->input_argument_list_.push_back(Input_argument(file));
708 gold_assert(!this->input_argument_list_.empty());
709 gold_assert(this->input_argument_list_.back().is_group());
710 this->input_argument_list_.back().group()->add_file(file);
717 Input_arguments::start_group()
719 gold_assert(!this->in_group_);
720 Input_file_group* group = new Input_file_group();
721 this->input_argument_list_.push_back(Input_argument(group));
722 this->in_group_ = true;
728 Input_arguments::end_group()
730 gold_assert(this->in_group_);
731 this->in_group_ = false;
734 // Command_line options.
736 Command_line::Command_line(Script_options* script_options)
737 : options_(script_options), position_options_(), inputs_()
741 // Process the command line options. For process_one_option,
742 // i is the index of argv to process next, and the return value
743 // is the index of the next option to process (i+1 or i+2, or argc
744 // to indicate processing is done). no_more_options is set to true
745 // if (and when) "--" is seen as an option.
748 Command_line::process_one_option(int argc, char** argv, int i,
749 bool* no_more_options)
751 const int options_size = options::Command_line_options::options_size;
752 const options::One_option* options = options::Command_line_options::options;
753 gold_assert(i < argc);
755 if (argv[i][0] != '-' || *no_more_options)
757 this->add_file(argv[i], false);
761 // Option starting with '-'.
763 if (argv[i][1] == '-')
766 if (argv[i][2] == '\0')
768 *no_more_options = true;
773 // Look for a long option match.
774 char* opt = argv[i] + dashes;
777 char* arg = strchr(opt, '=');
778 bool argument_with_equals = arg != NULL;
784 else if (i + 1 < argc)
791 for (j = 0; j < options_size; ++j)
793 if (options[j].long_option != NULL
796 != options::One_option::EXACTLY_TWO_DASHES))
797 && first == options[j].long_option[0]
798 && strcmp(opt, options[j].long_option) == 0)
800 if (options[j].special)
802 // Restore the '=' we clobbered above.
803 if (arg != NULL && skiparg == 0)
805 i += options[j].special(argc - i, argv + i, opt, true, this);
809 if (!options[j].takes_argument())
811 if (argument_with_equals)
812 this->usage(_("unexpected argument"), argv[i]);
819 this->usage(_("missing argument"), argv[i]);
821 this->apply_option(options[j], arg);
827 if (j < options_size)
830 // If we saw two dashes, we needed to have seen a long option.
832 this->usage(_("unknown option"), argv[i]);
834 // Look for a short option match. There may be more than one
835 // short option in a given argument.
837 char* s = argv[i] + 1;
839 while (*s != '\0' && !done)
843 for (j = 0; j < options_size; ++j)
845 if (options[j].short_option == opt)
847 if (options[j].special)
849 // Undo the argument skip done above.
851 i += options[j].special(argc - i, argv + i, s, false,
858 if (options[j].takes_argument())
871 this->usage(_("missing argument"), opt);
873 this->apply_option(options[j], arg);
879 if (j >= options_size)
880 this->usage(_("unknown option"), *s);
889 Command_line::process(int argc, char** argv)
891 bool no_more_options = false;
894 i = process_one_option(argc, argv, i, &no_more_options);
896 if (this->inputs_.in_group())
898 fprintf(stderr, _("%s: missing group end\n"), program_name);
902 // FIXME: We should only do this when configured in native mode.
903 this->options_.add_to_search_path_with_sysroot("/lib");
904 this->options_.add_to_search_path_with_sysroot("/usr/lib");
906 this->options_.add_sysroot();
908 // Ensure options don't contradict each other and are otherwise kosher.
909 this->normalize_options();
912 // Extract an option argument for a special option. LONGNAME is the
913 // long name of the option. This sets *PRET to the return value for
914 // the special function handler to skip to the next option.
917 Command_line::get_special_argument(const char* longname, int argc, char** argv,
918 const char* arg, bool long_option,
923 size_t longlen = strlen(longname);
924 gold_assert(strncmp(arg, longname, longlen) == 0);
933 gold_assert(*arg == '\0');
952 this->usage(_("missing argument"), arg);
955 // Ensure options don't contradict each other and are otherwise kosher.
958 Command_line::normalize_options()
960 // If the user specifies both -s and -r, convert the -s as -S.
961 // -r requires us to keep externally visible symbols!
962 if (this->options_.strip_all() && this->options_.is_relocatable())
964 // Clears the strip_all() status, replacing it with strip_debug().
965 this->options_.set_strip_debug();
968 // FIXME: we can/should be doing a lot more sanity checking here.
972 // Apply a command line option.
975 Command_line::apply_option(const options::One_option& opt,
980 if (opt.general_noarg)
981 (this->options_.*(opt.general_noarg))();
982 else if (opt.dependent_noarg)
983 (this->position_options_.*(opt.dependent_noarg))();
990 (this->options_.*(opt.general_arg))(arg);
991 else if (opt.dependent_arg)
992 (this->position_options_.*(opt.dependent_arg))(arg);
998 // Add an input file or library.
1001 Command_line::add_file(const char* name, bool is_lib)
1003 Input_file_argument file(name, is_lib, "", this->position_options_);
1004 this->inputs_.add_file(file);
1007 // Handle the -l option, which requires special treatment.
1010 Command_line::process_l_option(int argc, char** argv, char* arg,
1014 const char* libname = this->get_special_argument("library", argc, argv, arg,
1016 this->add_file(libname, true);
1020 // Handle the --start-group option.
1023 Command_line::start_group(const char* arg)
1025 if (this->inputs_.in_group())
1026 this->usage(_("may not nest groups"), arg);
1027 this->inputs_.start_group();
1030 // Handle the --end-group option.
1033 Command_line::end_group(const char* arg)
1035 if (!this->inputs_.in_group())
1036 this->usage(_("group end without group start"), arg);
1037 this->inputs_.end_group();
1040 // Report a usage error. */
1043 Command_line::usage()
1046 _("%s: use the --help option for usage information\n"),
1048 ::exit(EXIT_FAILURE);
1052 Command_line::usage(const char* msg, const char *opt)
1056 program_name, opt, msg);
1061 Command_line::usage(const char* msg, char opt)
1065 program_name, opt, msg);
1069 } // End namespace gold.