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- /* Parse options for the GNU linker.
- Copyright (C) 1991, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
-
- This file is part of GLD, the Gnu Linker.
-
- GLD is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- GLD is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GLD; see the file COPYING. If not, write to
- the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
- #include "bfd.h"
- #include "sysdep.h"
- #include "libiberty.h"
- #include <stdio.h>
- #include <string.h>
- #include <ctype.h>
- #include "getopt.h"
- #include "bfdlink.h"
- #include "ld.h"
- #include "ldmain.h"
- #include "ldmisc.h"
- #include "ldexp.h"
- #include "ldlang.h"
- #include "ldgram.h"
- #include "ldlex.h"
- #include "ldfile.h"
- #include "ldver.h"
- #include "ldemul.h"
-
- /* Somewhere above, sys/stat.h got included . . . . */
- #if !defined(S_ISDIR) && defined(S_IFDIR)
- #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
- #endif
-
- /* Omit args to avoid the possibility of clashing with a system header
- that might disagree about consts. */
- unsigned long strtoul ();
-
- static void set_default_dirlist PARAMS ((char *dirlist_ptr));
- static void set_section_start PARAMS ((char *sect, char *valstr));
- static void help PARAMS ((void));
-
- /* Non-zero if we are processing a --defsym from the command line. */
- int parsing_defsym = 0;
-
- /* Codes used for the long options with no short synonyms. 150 isn't
- special; it's just an arbitrary non-ASCII char value. */
-
- #define OPTION_ASSERT 150
- #define OPTION_CALL_SHARED (OPTION_ASSERT + 1)
- #define OPTION_CREF (OPTION_CALL_SHARED + 1)
- #define OPTION_DEFSYM (OPTION_CREF + 1)
- #define OPTION_DYNAMIC_LINKER (OPTION_DEFSYM + 1)
- #define OPTION_EB (OPTION_DYNAMIC_LINKER + 1)
- #define OPTION_EL (OPTION_EB + 1)
- #define OPTION_EMBEDDED_RELOCS (OPTION_EL + 1)
- #define OPTION_EXPORT_DYNAMIC (OPTION_EMBEDDED_RELOCS + 1)
- #define OPTION_HELP (OPTION_EXPORT_DYNAMIC + 1)
- #define OPTION_IGNORE (OPTION_HELP + 1)
- #define OPTION_MAP (OPTION_IGNORE + 1)
- #define OPTION_NO_KEEP_MEMORY (OPTION_MAP + 1)
- #define OPTION_NOINHIBIT_EXEC (OPTION_NO_KEEP_MEMORY + 1)
- #define OPTION_NON_SHARED (OPTION_NOINHIBIT_EXEC + 1)
- #define OPTION_NO_WHOLE_ARCHIVE (OPTION_NON_SHARED + 1)
- #define OPTION_OFORMAT (OPTION_NO_WHOLE_ARCHIVE + 1)
- #define OPTION_RELAX (OPTION_OFORMAT + 1)
- #define OPTION_RETAIN_SYMBOLS_FILE (OPTION_RELAX + 1)
- #define OPTION_RPATH (OPTION_RETAIN_SYMBOLS_FILE + 1)
- #define OPTION_RPATH_LINK (OPTION_RPATH + 1)
- #define OPTION_SHARED (OPTION_RPATH_LINK + 1)
- #define OPTION_SONAME (OPTION_SHARED + 1)
- #define OPTION_SORT_COMMON (OPTION_SONAME + 1)
- #define OPTION_STATS (OPTION_SORT_COMMON + 1)
- #define OPTION_SYMBOLIC (OPTION_STATS + 1)
- #define OPTION_TBSS (OPTION_SYMBOLIC + 1)
- #define OPTION_TDATA (OPTION_TBSS + 1)
- #define OPTION_TTEXT (OPTION_TDATA + 1)
- #define OPTION_TRADITIONAL_FORMAT (OPTION_TTEXT + 1)
- #define OPTION_UR (OPTION_TRADITIONAL_FORMAT + 1)
- #define OPTION_VERBOSE (OPTION_UR + 1)
- #define OPTION_VERSION (OPTION_VERBOSE + 1)
- #define OPTION_WARN_COMMON (OPTION_VERSION + 1)
- #define OPTION_WARN_CONSTRUCTORS (OPTION_WARN_COMMON + 1)
- #define OPTION_WARN_MULTIPLE_GP (OPTION_WARN_CONSTRUCTORS + 1)
- #define OPTION_WARN_ONCE (OPTION_WARN_MULTIPLE_GP + 1)
- #define OPTION_SPLIT_BY_RELOC (OPTION_WARN_ONCE + 1)
- #define OPTION_SPLIT_BY_FILE (OPTION_SPLIT_BY_RELOC + 1)
- #define OPTION_WHOLE_ARCHIVE (OPTION_SPLIT_BY_FILE + 1)
- #define OPTION_WRAP (OPTION_WHOLE_ARCHIVE + 1)
- #define OPTION_FORCE_EXE_SUFFIX (OPTION_WRAP + 1)
-
- /* The long options. This structure is used for both the option
- parsing and the help text. */
-
- struct ld_option
- {
- /* The long option information. */
- struct option opt;
- /* The short option with the same meaning ('\0' if none). */
- char shortopt;
- /* The name of the argument (NULL if none). */
- const char *arg;
- /* The documentation string. If this is NULL, this is a synonym for
- the previous option. */
- const char *doc;
- enum
- {
- /* Use one dash before long option name. */
- ONE_DASH,
- /* Use two dashes before long option name. */
- TWO_DASHES,
- /* Don't mention this option in --help output. */
- NO_HELP
- } control;
- };
-
- static const struct ld_option ld_options[] =
- {
- { {NULL, required_argument, NULL, '\0'},
- 'a', "KEYWORD", "Shared library control for HP/UX compatibility",
- ONE_DASH },
- { {"architecture", required_argument, NULL, 'A'},
- 'A', "ARCH", "Set architecture" , TWO_DASHES },
- { {"format", required_argument, NULL, 'b'},
- 'b', "TARGET", "Specify target for following input files", TWO_DASHES },
- { {"mri-script", required_argument, NULL, 'c'},
- 'c', "FILE", "Read MRI format linker script", TWO_DASHES },
- { {"dc", no_argument, NULL, 'd'},
- 'd', NULL, "Force common symbols to be defined", ONE_DASH },
- { {"dp", no_argument, NULL, 'd'},
- '\0', NULL, NULL, ONE_DASH },
- { {"entry", required_argument, NULL, 'e'},
- 'e', "ADDRESS", "Set start address", TWO_DASHES },
- { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
- 'E', NULL, "Export all dynamic symbols", TWO_DASHES },
- { {NULL, optional_argument, NULL, '\0'},
- 'F', "[FORMAT]", "Ignored", ONE_DASH },
- { {NULL, no_argument, NULL, '\0'},
- 'g', NULL, "Ignored", ONE_DASH },
- { {"gpsize", required_argument, NULL, 'G'},
- 'G', "SIZE", "Small data size (if no size, same as --shared)",
- TWO_DASHES },
- { {"soname", required_argument, NULL, OPTION_SONAME},
- 'h', "FILENAME", "Set internal name of shared library", ONE_DASH },
- { {"library", required_argument, NULL, 'l'},
- 'l', "LIBNAME", "Search for library LIBNAME", TWO_DASHES },
- { {"library-path", required_argument, NULL, 'L'},
- 'L', "DIRECTORY", "Add DIRECTORY to library search path", TWO_DASHES },
- { {NULL, required_argument, NULL, '\0'},
- 'm', "EMULATION", "Set emulation", ONE_DASH },
- { {"print-map", no_argument, NULL, 'M'},
- 'M', NULL, "Print map file on standard output", TWO_DASHES },
- { {"nmagic", no_argument, NULL, 'n'},
- 'n', NULL, "Do not page align data", TWO_DASHES },
- { {"omagic", no_argument, NULL, 'N'},
- 'N', NULL, "Do not page align data, do not make text readonly",
- TWO_DASHES },
- { {"output", required_argument, NULL, 'o'},
- 'o', "FILE", "Set output file name", TWO_DASHES },
- { {NULL, required_argument, NULL, '\0'},
- 'O', NULL, "Ignored", ONE_DASH },
- { {"relocateable", no_argument, NULL, 'r'},
- 'r', NULL, "Generate relocateable output", TWO_DASHES },
- { {NULL, no_argument, NULL, '\0'},
- 'i', NULL, NULL, ONE_DASH },
- { {"just-symbols", required_argument, NULL, 'R'},
- 'R', "FILE", "Just link symbols (if directory, same as --rpath)",
- TWO_DASHES },
- { {"strip-all", no_argument, NULL, 's'},
- 's', NULL, "Strip all symbols", TWO_DASHES },
- { {"strip-debug", no_argument, NULL, 'S'},
- 'S', NULL, "Strip debugging symbols", TWO_DASHES },
- { {"trace", no_argument, NULL, 't'},
- 't', NULL, "Trace file opens", TWO_DASHES },
- { {"script", required_argument, NULL, 'T'},
- 'T', "FILE", "Read linker script", TWO_DASHES },
- { {"undefined", required_argument, NULL, 'u'},
- 'u', "SYMBOL", "Start with undefined reference to SYMBOL", TWO_DASHES },
- { {"version", no_argument, NULL, OPTION_VERSION},
- 'v', NULL, "Print version information", TWO_DASHES },
- { {NULL, no_argument, NULL, '\0'},
- 'V', NULL, "Print version and emulation information", ONE_DASH },
- { {"discard-all", no_argument, NULL, 'x'},
- 'x', NULL, "Discard all local symbols", TWO_DASHES },
- { {"discard-locals", no_argument, NULL, 'X'},
- 'X', NULL, "Discard temporary local symbols", TWO_DASHES },
- { {"trace-symbol", required_argument, NULL, 'y'},
- 'y', "SYMBOL", "Trace mentions of SYMBOL", TWO_DASHES },
- { {NULL, required_argument, NULL, '\0'},
- 'Y', "PATH", "Default search path for Solaris compatibility", ONE_DASH },
- { {NULL, required_argument, NULL, '\0'},
- 'z', "KEYWORD", "Ignored for Solaris compatibility", ONE_DASH },
- { {"start-group", no_argument, NULL, '('},
- '(', NULL, "Start a group", TWO_DASHES },
- { {"end-group", no_argument, NULL, ')'},
- ')', NULL, "End a group", TWO_DASHES },
- { {"assert", required_argument, NULL, OPTION_ASSERT},
- '\0', "KEYWORD", "Ignored for SunOS compatibility", ONE_DASH },
- { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
- '\0', NULL, "Link against shared libraries", ONE_DASH },
- { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
- '\0', NULL, NULL, ONE_DASH },
- { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
- '\0', NULL, NULL, ONE_DASH },
- { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
- '\0', NULL, "Do not link against shared libraries", ONE_DASH },
- { {"dn", no_argument, NULL, OPTION_NON_SHARED},
- '\0', NULL, NULL, ONE_DASH },
- { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
- '\0', NULL, NULL, ONE_DASH },
- { {"static", no_argument, NULL, OPTION_NON_SHARED},
- '\0', NULL, NULL, ONE_DASH },
- { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
- '\0', NULL, "Bind global references locally", ONE_DASH },
- { {"cref", no_argument, NULL, OPTION_CREF},
- '\0', NULL, "Output cross reference table", TWO_DASHES },
- { {"defsym", required_argument, NULL, OPTION_DEFSYM},
- '\0', "SYMBOL=EXPRESSION", "Define a symbol", TWO_DASHES },
- { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
- '\0', "PROGRAM", "Set the dynamic linker to use", TWO_DASHES },
- { {"EB", no_argument, NULL, OPTION_EB},
- '\0', NULL, "Link big-endian objects", ONE_DASH },
- { {"EL", no_argument, NULL, OPTION_EL},
- '\0', NULL, "Link little-endian objects", ONE_DASH },
- { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
- '\0', NULL, "Generate embedded relocs", TWO_DASHES},
- { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
- '\0', NULL, "Force generation of file with .exe suffix", TWO_DASHES},
- { {"help", no_argument, NULL, OPTION_HELP},
- '\0', NULL, "Print option help", TWO_DASHES },
- { {"Map", required_argument, NULL, OPTION_MAP},
- '\0', "FILE", "Write a map file", ONE_DASH },
- { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
- '\0', NULL, "Use less memory and more disk I/O", TWO_DASHES },
- { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
- '\0', NULL, "Turn off --whole-archive", TWO_DASHES },
- { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
- '\0', NULL, "Create an output file even if errors occur", TWO_DASHES },
- { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
- '\0', NULL, NULL, NO_HELP },
- { {"oformat", required_argument, NULL, OPTION_OFORMAT},
- '\0', "TARGET", "Specify target of output file", TWO_DASHES },
- { {"qmagic", no_argument, NULL, OPTION_IGNORE},
- '\0', NULL, "Ignored for Linux compatibility", ONE_DASH },
- { {"Qy", no_argument, NULL, OPTION_IGNORE},
- '\0', NULL, "Ignored for SVR4 compatibility", ONE_DASH },
- { {"relax", no_argument, NULL, OPTION_RELAX},
- '\0', NULL, "Relax branches on certain targets", TWO_DASHES },
- { {"retain-symbols-file", required_argument, NULL,
- OPTION_RETAIN_SYMBOLS_FILE},
- '\0', "FILE", "Keep only symbols listed in FILE", TWO_DASHES },
- { {"rpath", required_argument, NULL, OPTION_RPATH},
- '\0', "PATH", "Set runtime shared library search path", ONE_DASH },
- { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
- '\0', "PATH", "Set line time shared library search path", ONE_DASH },
- { {"shared", no_argument, NULL, OPTION_SHARED},
- '\0', NULL, "Create a shared library", ONE_DASH },
- { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */
- '\0', NULL, NULL, ONE_DASH },
- { {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
- '\0', NULL, "Sort common symbols by size", TWO_DASHES },
- { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
- '\0', NULL, NULL, NO_HELP },
- { {"split-by-file", no_argument, NULL, OPTION_SPLIT_BY_FILE},
- '\0', NULL, "Split output sections for each file", TWO_DASHES },
- { {"split-by-reloc", required_argument, NULL, OPTION_SPLIT_BY_RELOC},
- '\0', "COUNT", "Split output sections every COUNT relocs", TWO_DASHES },
- { {"stats", no_argument, NULL, OPTION_STATS},
- '\0', NULL, "Print memory usage statistics", TWO_DASHES },
- { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
- '\0', NULL, "Use same format as native linker", TWO_DASHES },
- { {"Tbss", required_argument, NULL, OPTION_TBSS},
- '\0', "ADDRESS", "Set address of .bss section", ONE_DASH },
- { {"Tdata", required_argument, NULL, OPTION_TDATA},
- '\0', "ADDRESS", "Set address of .data section", ONE_DASH },
- { {"Ttext", required_argument, NULL, OPTION_TTEXT},
- '\0', "ADDRESS", "Set address of .text section", ONE_DASH },
- { {"Ur", no_argument, NULL, OPTION_UR},
- '\0', NULL, "Build global constructor/destructor tables", ONE_DASH },
- { {"verbose", no_argument, NULL, OPTION_VERBOSE},
- '\0', NULL, "Output lots of information during link", TWO_DASHES },
- { {"dll-verbose", no_argument, NULL, OPTION_VERSION}, /* Linux. */
- '\0', NULL, NULL, NO_HELP },
- { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
- '\0', NULL, "Warn about duplicate common symbols", TWO_DASHES },
- { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
- '\0', NULL, "Warn if global constructors/destructors are seen",
- TWO_DASHES },
- { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
- '\0', NULL, "Warn if the multiple GP values are used", TWO_DASHES },
- { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
- '\0', NULL, "Warn only once per undefined symbol", TWO_DASHES },
- { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
- '\0', NULL, "Include all objects from following archives", TWO_DASHES },
- { {"wrap", required_argument, NULL, OPTION_WRAP},
- '\0', "SYMBOL", "Use wrapper functions for SYMBOL", TWO_DASHES }
- };
-
- #define OPTION_COUNT (sizeof ld_options / sizeof ld_options[0])
-
- void
- parse_args (argc, argv)
- int argc;
- char **argv;
- {
- int i, is, il;
- int ingroup = 0;
- char *default_dirlist = NULL;
- char shortopts[OPTION_COUNT * 3 + 2];
- struct option longopts[OPTION_COUNT + 1];
-
- /* Starting the short option string with '-' is for programs that
- expect options and other ARGV-elements in any order and that care about
- the ordering of the two. We describe each non-option ARGV-element
- as if it were the argument of an option with character code 1. */
- shortopts[0] = '-';
- is = 1;
- il = 0;
- for (i = 0; i < OPTION_COUNT; i++)
- {
- if (ld_options[i].shortopt != '\0')
- {
- shortopts[is] = ld_options[i].shortopt;
- ++is;
- if (ld_options[i].opt.has_arg == required_argument
- || ld_options[i].opt.has_arg == optional_argument)
- {
- shortopts[is] = ':';
- ++is;
- if (ld_options[i].opt.has_arg == optional_argument)
- {
- shortopts[is] = ':';
- ++is;
- }
- }
- }
- if (ld_options[i].opt.name != NULL)
- {
- longopts[il] = ld_options[i].opt;
- ++il;
- }
- }
- shortopts[is] = '\0';
- longopts[il].name = NULL;
-
- /* The -G option is ambiguous on different platforms. Sometimes it
- specifies the largest data size to put into the small data
- section. Sometimes it is equivalent to --shared. Unfortunately,
- the first form takes an argument, while the second does not.
-
- We need to permit the --shared form because on some platforms,
- such as Solaris, gcc -shared will pass -G to the linker.
-
- To permit either usage, we look through the argument list. If we
- find -G not followed by a number, we change it into --shared.
- This will work for most normal cases. */
- for (i = 1; i < argc; i++)
- if (strcmp (argv[i], "-G") == 0
- && (i + 1 >= argc
- || ! isdigit (argv[i + 1][0])))
- argv[i] = (char *) "--shared";
-
- while (1)
- {
- /* getopt_long_only is like getopt_long, but '-' as well as '--' can
- indicate a long option. */
- int longind;
- int optc;
-
- if (ldemul_parse_args (argc, argv))
- continue;
-
- optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
-
- if (optc == -1)
- break;
- switch (optc)
- {
- default:
- xexit (1);
- case 1: /* File name. */
- lang_add_input_file (optarg, lang_input_file_is_file_enum,
- (char *) NULL);
- break;
-
- case OPTION_IGNORE:
- break;
- case 'a':
- /* For HP/UX compatibility. Actually -a shared should mean
- ``use only shared libraries'' but, then, we don't
- currently support shared libraries on HP/UX anyhow. */
- if (strcmp (optarg, "archive") == 0)
- config.dynamic_link = false;
- else if (strcmp (optarg, "shared") == 0
- || strcmp (optarg, "default") == 0)
- config.dynamic_link = true;
- else
- einfo ("%P%F: unrecognized -a option `%s'\n", optarg);
- break;
- case OPTION_ASSERT:
- /* FIXME: We just ignore these, but we should handle them. */
- if (strcmp (optarg, "definitions") == 0)
- ;
- else if (strcmp (optarg, "nodefinitions") == 0)
- ;
- else if (strcmp (optarg, "nosymbolic") == 0)
- ;
- else if (strcmp (optarg, "pure-text") == 0)
- ;
- else
- einfo ("%P%F: unrecognized -assert option `%s'\n", optarg);
- break;
- case 'A':
- ldfile_add_arch (optarg);
- break;
- case 'b':
- lang_add_target (optarg);
- break;
- case 'c':
- ldfile_open_command_file (optarg);
- parser_input = input_mri_script;
- yyparse ();
- break;
- case OPTION_CALL_SHARED:
- config.dynamic_link = true;
- break;
- case OPTION_NON_SHARED:
- config.dynamic_link = false;
- break;
- case OPTION_CREF:
- link_info.notice_all = true;
- break;
- case 'd':
- command_line.force_common_definition = true;
- break;
- case OPTION_DEFSYM:
- lex_string = optarg;
- lex_redirect (optarg);
- parser_input = input_defsym;
- parsing_defsym = 1;
- yyparse ();
- parsing_defsym = 0;
- lex_string = NULL;
- break;
- case OPTION_DYNAMIC_LINKER:
- command_line.interpreter = optarg;
- break;
- case OPTION_EB:
- command_line.endian = ENDIAN_BIG;
- break;
- case OPTION_EL:
- command_line.endian = ENDIAN_LITTLE;
- break;
- case OPTION_EMBEDDED_RELOCS:
- command_line.embedded_relocs = true;
- break;
- case OPTION_EXPORT_DYNAMIC:
- case 'E': /* HP/UX compatibility. */
- command_line.export_dynamic = true;
- break;
- case 'e':
- lang_add_entry (optarg, true);
- break;
- case 'F':
- /* Ignore. */
- break;
- case OPTION_FORCE_EXE_SUFFIX:
- command_line.force_exe_suffix = true;
- break;
- case 'G':
- {
- char *end;
- g_switch_value = strtoul (optarg, &end, 0);
- if (*end)
- einfo ("%P%F: invalid number `%s'\n", optarg);
- }
- break;
- case 'g':
- /* Ignore. */
- break;
- case OPTION_HELP:
- help ();
- xexit (0);
- break;
- case 'L':
- ldfile_add_library_path (optarg, true);
- break;
- case 'l':
- lang_add_input_file (optarg, lang_input_file_is_l_enum,
- (char *) NULL);
- break;
- case 'M':
- config.map_filename = "-";
- break;
- case 'm':
- /* Ignore. Was handled in a pre-parse. */
- break;
- case OPTION_MAP:
- config.map_filename = optarg;
- break;
- case 'N':
- config.text_read_only = false;
- config.magic_demand_paged = false;
- config.dynamic_link = false;
- break;
- case 'n':
- config.magic_demand_paged = false;
- config.dynamic_link = false;
- break;
- case OPTION_NO_KEEP_MEMORY:
- link_info.keep_memory = false;
- break;
- case OPTION_NOINHIBIT_EXEC:
- force_make_executable = true;
- break;
- case OPTION_NO_WHOLE_ARCHIVE:
- whole_archive = false;
- break;
- case 'O':
- /* FIXME "-O<non-digits> <value>" used to set the address of
- section <non-digits>. Was this for compatibility with
- something, or can we create a new option to do that
- (with a syntax similar to -defsym)?
- getopt can't handle two args to an option without kludges. */
- break;
- case 'o':
- lang_add_output (optarg, 0);
- break;
- case OPTION_OFORMAT:
- lang_add_output_format (optarg, (char *) NULL, (char *) NULL, 0);
- break;
- case 'i':
- case 'r':
- link_info.relocateable = true;
- config.build_constructors = false;
- config.magic_demand_paged = false;
- config.text_read_only = false;
- config.dynamic_link = false;
- break;
- case 'R':
- /* The GNU linker traditionally uses -R to mean to include
- only the symbols from a file. The Solaris linker uses -R
- to set the path used by the runtime linker to find
- libraries. This is the GNU linker -rpath argument. We
- try to support both simultaneously by checking the file
- named. If it is a directory, rather than a regular file,
- we assume -rpath was meant. */
- {
- struct stat s;
-
- if (stat (optarg, &s) >= 0
- && ! S_ISDIR (s.st_mode))
- {
- lang_add_input_file (optarg,
- lang_input_file_is_symbols_only_enum,
- (char *) NULL);
- break;
- }
- }
- /* Fall through. */
- case OPTION_RPATH:
- if (command_line.rpath == NULL)
- command_line.rpath = buystring (optarg);
- else
- {
- char *buf;
-
- buf = xmalloc (strlen (command_line.rpath)
- + strlen (optarg)
- + 2);
- sprintf (buf, "%s:%s", command_line.rpath, optarg);
- free (command_line.rpath);
- command_line.rpath = buf;
- }
- break;
- case OPTION_RPATH_LINK:
- if (command_line.rpath_link == NULL)
- command_line.rpath_link = buystring (optarg);
- else
- {
- char *buf;
-
- buf = xmalloc (strlen (command_line.rpath_link)
- + strlen (optarg)
- + 2);
- sprintf (buf, "%s:%s", command_line.rpath_link, optarg);
- free (command_line.rpath_link);
- command_line.rpath_link = buf;
- }
- break;
- case OPTION_RELAX:
- command_line.relax = true;
- break;
- case OPTION_RETAIN_SYMBOLS_FILE:
- add_keepsyms_file (optarg);
- break;
- case 'S':
- link_info.strip = strip_debugger;
- break;
- case 's':
- link_info.strip = strip_all;
- break;
- case OPTION_SHARED:
- link_info.shared = true;
- break;
- case 'h': /* Used on Solaris. */
- case OPTION_SONAME:
- command_line.soname = optarg;
- break;
- case OPTION_SORT_COMMON:
- config.sort_common = true;
- break;
- case OPTION_STATS:
- config.stats = true;
- break;
- case OPTION_SYMBOLIC:
- link_info.symbolic = true;
- break;
- case 't':
- trace_files = true;
- break;
- case 'T':
- ldfile_open_command_file (optarg);
- parser_input = input_script;
- yyparse ();
- break;
- case OPTION_TBSS:
- set_section_start (".bss", optarg);
- break;
- case OPTION_TDATA:
- set_section_start (".data", optarg);
- break;
- case OPTION_TTEXT:
- set_section_start (".text", optarg);
- break;
- case OPTION_TRADITIONAL_FORMAT:
- link_info.traditional_format = true;
- break;
- case OPTION_UR:
- link_info.relocateable = true;
- config.build_constructors = true;
- config.magic_demand_paged = false;
- config.text_read_only = false;
- config.dynamic_link = false;
- break;
- case 'u':
- ldlang_add_undef (optarg);
- break;
- case OPTION_VERBOSE:
- ldversion (1);
- version_printed = true;
- trace_file_tries = true;
- break;
- case 'v':
- ldversion (0);
- version_printed = true;
- break;
- case 'V':
- ldversion (1);
- version_printed = true;
- break;
- case OPTION_VERSION:
- ldversion (0);
- version_printed = true;
- break;
- case OPTION_WARN_COMMON:
- config.warn_common = true;
- break;
- case OPTION_WARN_CONSTRUCTORS:
- config.warn_constructors = true;
- break;
- case OPTION_WARN_MULTIPLE_GP:
- config.warn_multiple_gp = true;
- break;
- case OPTION_WARN_ONCE:
- config.warn_once = true;
- break;
- case OPTION_WHOLE_ARCHIVE:
- whole_archive = true;
- break;
- case OPTION_WRAP:
- add_wrap (optarg);
- break;
- case 'X':
- link_info.discard = discard_l;
- break;
- case 'x':
- link_info.discard = discard_all;
- break;
- case 'Y':
- if (strncmp (optarg, "P,", 2) == 0)
- optarg += 2;
- default_dirlist = xstrdup (optarg);
- break;
- case 'y':
- add_ysym (optarg);
- break;
- case 'z':
- /* We accept and ignore this option for Solaris
- compatibility. Actually, on Solaris, optarg is not
- ignored. Someday we should handle it correctly. FIXME. */
- break;
- case OPTION_SPLIT_BY_RELOC:
- config.split_by_reloc = atoi (optarg);
- break;
- case OPTION_SPLIT_BY_FILE:
- config.split_by_file = true;
- break;
- case '(':
- if (ingroup)
- {
- fprintf (stderr,
- "%s: may not nest groups (--help for usage)\n",
- program_name);
- xexit (1);
- }
- lang_enter_group ();
- ingroup = 1;
- break;
- case ')':
- if (! ingroup)
- {
- fprintf (stderr,
- "%s: group ended before it began (--help for usage)\n",
- program_name);
- xexit (1);
- }
- lang_leave_group ();
- ingroup = 0;
- break;
-
- }
- }
-
- if (ingroup)
- lang_leave_group ();
-
- if (default_dirlist != NULL)
- set_default_dirlist (default_dirlist);
-
- }
-
- /* Add the (colon-separated) elements of DIRLIST_PTR to the
- library search path. */
-
- static void
- set_default_dirlist (dirlist_ptr)
- char *dirlist_ptr;
- {
- char *p;
-
- while (1)
- {
- p = strchr (dirlist_ptr, ':');
- if (p != NULL)
- *p = '\0';
- if (*dirlist_ptr != '\0')
- ldfile_add_library_path (dirlist_ptr, true);
- if (p == NULL)
- break;
- dirlist_ptr = p + 1;
- }
- }
-
- static void
- set_section_start (sect, valstr)
- char *sect, *valstr;
- {
- char *end;
- unsigned long val = strtoul (valstr, &end, 16);
- if (*end)
- einfo ("%P%F: invalid hex number `%s'\n", valstr);
- lang_section_start (sect, exp_intop (val));
- }
-
- /* Print help messages for the options. */
-
- static void
- help ()
- {
- int i;
- const char **targets, **pp;
-
- printf ("Usage: %s [options] file...\n", program_name);
-
- printf ("Options:\n");
- for (i = 0; i < OPTION_COUNT; i++)
- {
- if (ld_options[i].doc != NULL)
- {
- boolean comma;
- int len;
- int j;
-
- printf (" ");
-
- comma = false;
- len = 2;
-
- j = i;
- do
- {
- if (ld_options[j].shortopt != '\0'
- && ld_options[j].control != NO_HELP)
- {
- printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
- len += (comma ? 2 : 0) + 2;
- if (ld_options[j].arg != NULL)
- {
- if (ld_options[j].opt.has_arg != optional_argument)
- {
- printf (" ");
- ++len;
- }
- printf ("%s", ld_options[j].arg);
- len += strlen (ld_options[j].arg);
- }
- comma = true;
- }
- ++j;
- }
- while (j < OPTION_COUNT && ld_options[j].doc == NULL);
-
- j = i;
- do
- {
- if (ld_options[j].opt.name != NULL
- && ld_options[j].control != NO_HELP)
- {
- printf ("%s-%s%s",
- comma ? ", " : "",
- ld_options[j].control == TWO_DASHES ? "-" : "",
- ld_options[j].opt.name);
- len += ((comma ? 2 : 0)
- + 1
- + (ld_options[j].control == TWO_DASHES ? 1 : 0)
- + strlen (ld_options[j].opt.name));
- if (ld_options[j].arg != NULL)
- {
- printf (" %s", ld_options[j].arg);
- len += 1 + strlen (ld_options[j].arg);
- }
- comma = true;
- }
- ++j;
- }
- while (j < OPTION_COUNT && ld_options[j].doc == NULL);
-
- if (len >= 30)
- {
- printf ("\n");
- len = 0;
- }
-
- for (; len < 30; len++)
- putchar (' ');
-
- printf ("%s\n", ld_options[i].doc);
- }
- }
-
- printf ("%s: supported targets:", program_name);
- targets = bfd_target_list ();
- for (pp = targets; *pp != NULL; pp++)
- printf (" %s", *pp);
- free (targets);
- printf ("\n");
-
- printf ("%s: supported emulations: ", program_name);
- ldemul_list_emulations (stdout);
- printf ("\n");
- }
-