1388 lines
46 KiB
C
1388 lines
46 KiB
C
/* Parse options for the GNU linker.
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Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
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2001, 2002, 2003, 2004
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Free Software Foundation, Inc.
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This file is part of GLD, the Gnu Linker.
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GLD is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GLD is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GLD; see the file COPYING. If not, write to the Free
|
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#include "bfd.h"
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#include "sysdep.h"
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#include "libiberty.h"
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#include <stdio.h>
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#include <string.h>
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#include "safe-ctype.h"
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#include "getopt.h"
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#include "bfdlink.h"
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#include "ld.h"
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#include "ldmain.h"
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#include "ldmisc.h"
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#include "ldexp.h"
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#include "ldlang.h"
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#include <ldgram.h>
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#include "ldlex.h"
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#include "ldfile.h"
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#include "ldver.h"
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#include "ldemul.h"
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#include "demangle.h"
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#ifndef PATH_SEPARATOR
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#if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
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#define PATH_SEPARATOR ';'
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#else
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#define PATH_SEPARATOR ':'
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#endif
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#endif
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/* Somewhere above, sys/stat.h got included . . . . */
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#if !defined(S_ISDIR) && defined(S_IFDIR)
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#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
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#endif
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static void set_default_dirlist (char *);
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static void set_section_start (char *, char *);
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static void help (void);
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/* Non-zero if we are processing a --defsym from the command line. */
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int parsing_defsym = 0;
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/* Codes used for the long options with no short synonyms. 150 isn't
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special; it's just an arbitrary non-ASCII char value. */
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enum option_values
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{
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OPTION_ASSERT = 150,
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OPTION_CALL_SHARED,
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OPTION_CREF,
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OPTION_DEFSYM,
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OPTION_DEMANGLE,
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OPTION_DYNAMIC_LINKER,
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OPTION_EB,
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OPTION_EL,
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OPTION_EMBEDDED_RELOCS,
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OPTION_EXPORT_DYNAMIC,
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OPTION_HELP,
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OPTION_IGNORE,
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OPTION_MAP,
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OPTION_NO_DEMANGLE,
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OPTION_NO_KEEP_MEMORY,
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OPTION_NO_WARN_MISMATCH,
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OPTION_NOINHIBIT_EXEC,
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OPTION_NON_SHARED,
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OPTION_NO_WHOLE_ARCHIVE,
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OPTION_OFORMAT,
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OPTION_RELAX,
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OPTION_RETAIN_SYMBOLS_FILE,
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OPTION_RPATH,
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OPTION_RPATH_LINK,
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OPTION_SHARED,
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OPTION_SONAME,
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OPTION_SORT_COMMON,
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OPTION_STATS,
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OPTION_SYMBOLIC,
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OPTION_TASK_LINK,
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OPTION_TBSS,
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OPTION_TDATA,
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OPTION_TTEXT,
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OPTION_TRADITIONAL_FORMAT,
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OPTION_UR,
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OPTION_VERBOSE,
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OPTION_VERSION,
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OPTION_VERSION_SCRIPT,
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OPTION_VERSION_EXPORTS_SECTION,
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OPTION_WARN_COMMON,
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OPTION_WARN_CONSTRUCTORS,
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OPTION_WARN_FATAL,
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OPTION_WARN_MULTIPLE_GP,
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OPTION_WARN_ONCE,
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OPTION_WARN_SECTION_ALIGN,
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OPTION_SPLIT_BY_RELOC,
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OPTION_SPLIT_BY_FILE ,
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OPTION_WHOLE_ARCHIVE,
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OPTION_AS_NEEDED,
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OPTION_NO_AS_NEEDED,
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OPTION_WRAP,
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OPTION_FORCE_EXE_SUFFIX,
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OPTION_GC_SECTIONS,
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OPTION_NO_GC_SECTIONS,
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OPTION_CHECK_SECTIONS,
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OPTION_NO_CHECK_SECTIONS,
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OPTION_NO_UNDEFINED,
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OPTION_INIT,
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OPTION_FINI,
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OPTION_SECTION_START,
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OPTION_UNIQUE,
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OPTION_TARGET_HELP,
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OPTION_ALLOW_SHLIB_UNDEFINED,
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OPTION_NO_ALLOW_SHLIB_UNDEFINED,
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OPTION_ALLOW_MULTIPLE_DEFINITION,
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OPTION_NO_UNDEFINED_VERSION,
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OPTION_DISCARD_NONE,
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OPTION_SPARE_DYNAMIC_TAGS,
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OPTION_NO_DEFINE_COMMON,
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OPTION_NOSTDLIB,
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OPTION_NO_OMAGIC,
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OPTION_STRIP_DISCARDED,
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OPTION_NO_STRIP_DISCARDED,
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OPTION_ACCEPT_UNKNOWN_INPUT_ARCH,
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OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH,
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OPTION_PIE,
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OPTION_UNRESOLVED_SYMBOLS,
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OPTION_WARN_UNRESOLVED_SYMBOLS,
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OPTION_ERROR_UNRESOLVED_SYMBOLS
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};
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/* The long options. This structure is used for both the option
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parsing and the help text. */
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struct ld_option
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{
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/* The long option information. */
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struct option opt;
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/* The short option with the same meaning ('\0' if none). */
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char shortopt;
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/* The name of the argument (NULL if none). */
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const char *arg;
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/* The documentation string. If this is NULL, this is a synonym for
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the previous option. */
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const char *doc;
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enum {
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/* Use one dash before long option name. */
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ONE_DASH,
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/* Use two dashes before long option name. */
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TWO_DASHES,
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/* Only accept two dashes before the long option name.
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This is an overloading of the use of this enum, since originally it
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was only intended to tell the --help display function how to display
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the long option name. This feature was added in order to resolve
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the confusion about the -omagic command line switch. Is it setting
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the output file name to "magic" or is it setting the NMAGIC flag on
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the output ? It has been decided that it is setting the output file
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name, and that if you want to set the NMAGIC flag you should use -N
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or --omagic. */
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EXACTLY_TWO_DASHES,
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/* Don't mention this option in --help output. */
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NO_HELP
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} control;
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};
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static const struct ld_option ld_options[] =
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{
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{ {NULL, required_argument, NULL, '\0'},
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'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
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ONE_DASH },
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{ {"architecture", required_argument, NULL, 'A'},
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'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES },
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{ {"format", required_argument, NULL, 'b'},
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'b', N_("TARGET"), N_("Specify target for following input files"), TWO_DASHES },
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{ {"mri-script", required_argument, NULL, 'c'},
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'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES },
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{ {"dc", no_argument, NULL, 'd'},
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'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
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{ {"dp", no_argument, NULL, 'd'},
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'\0', NULL, NULL, ONE_DASH },
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{ {"entry", required_argument, NULL, 'e'},
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'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
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{ {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
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'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
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{ {"EB", no_argument, NULL, OPTION_EB},
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'\0', NULL, N_("Link big-endian objects"), ONE_DASH },
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{ {"EL", no_argument, NULL, OPTION_EL},
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'\0', NULL, N_("Link little-endian objects"), ONE_DASH },
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{ {"auxiliary", required_argument, NULL, 'f'},
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'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
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TWO_DASHES },
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{ {"filter", required_argument, NULL, 'F'},
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'F', N_("SHLIB"), N_("Filter for shared object symbol table"), TWO_DASHES },
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{ {NULL, no_argument, NULL, '\0'},
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'g', NULL, N_("Ignored"), ONE_DASH },
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{ {"gpsize", required_argument, NULL, 'G'},
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'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
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TWO_DASHES },
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{ {"soname", required_argument, NULL, OPTION_SONAME},
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'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
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{ {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
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'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"), TWO_DASHES },
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{ {"library", required_argument, NULL, 'l'},
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'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
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{ {"library-path", required_argument, NULL, 'L'},
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'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"), TWO_DASHES },
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{ {NULL, required_argument, NULL, '\0'},
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'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
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{ {"print-map", no_argument, NULL, 'M'},
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'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
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{ {"nmagic", no_argument, NULL, 'n'},
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'n', NULL, N_("Do not page align data"), TWO_DASHES },
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{ {"omagic", no_argument, NULL, 'N'},
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'N', NULL, N_("Do not page align data, do not make text readonly"),
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EXACTLY_TWO_DASHES },
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{ {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC},
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'\0', NULL, N_("Page align data, make text readonly"), EXACTLY_TWO_DASHES },
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{ {"output", required_argument, NULL, 'o'},
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'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
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{ {NULL, required_argument, NULL, '\0'},
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'O', NULL, N_("Optimize output file"), ONE_DASH },
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{ {"Qy", no_argument, NULL, OPTION_IGNORE},
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'\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
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{ {"emit-relocs", no_argument, NULL, 'q'},
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'q', NULL, "Generate relocations in final output", TWO_DASHES },
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{ {"relocatable", no_argument, NULL, 'r'},
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'r', NULL, N_("Generate relocatable output"), TWO_DASHES },
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{ {NULL, no_argument, NULL, '\0'},
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'i', NULL, NULL, ONE_DASH },
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{ {"just-symbols", required_argument, NULL, 'R'},
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'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
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TWO_DASHES },
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{ {"strip-all", no_argument, NULL, 's'},
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's', NULL, N_("Strip all symbols"), TWO_DASHES },
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{ {"strip-debug", no_argument, NULL, 'S'},
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'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
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{ {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED},
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'\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES },
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{ {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED},
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'\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES },
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{ {"trace", no_argument, NULL, 't'},
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't', NULL, N_("Trace file opens"), TWO_DASHES },
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{ {"script", required_argument, NULL, 'T'},
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'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
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{ {"undefined", required_argument, NULL, 'u'},
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'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"), TWO_DASHES },
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{ {"unique", optional_argument, NULL, OPTION_UNIQUE},
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'\0', N_("[=SECTION]"), N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES },
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{ {"Ur", no_argument, NULL, OPTION_UR},
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'\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
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{ {"version", no_argument, NULL, OPTION_VERSION},
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'v', NULL, N_("Print version information"), TWO_DASHES },
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{ {NULL, no_argument, NULL, '\0'},
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'V', NULL, N_("Print version and emulation information"), ONE_DASH },
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{ {"discard-all", no_argument, NULL, 'x'},
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'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
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{ {"discard-locals", no_argument, NULL, 'X'},
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'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES },
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{ {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE},
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'\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES },
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{ {"trace-symbol", required_argument, NULL, 'y'},
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'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
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{ {NULL, required_argument, NULL, '\0'},
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'Y', N_("PATH"), N_("Default search path for Solaris compatibility"), ONE_DASH },
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{ {"start-group", no_argument, NULL, '('},
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'(', NULL, N_("Start a group"), TWO_DASHES },
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{ {"end-group", no_argument, NULL, ')'},
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')', NULL, N_("End a group"), TWO_DASHES },
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{ {"accept-unknown-input-arch", no_argument, NULL, OPTION_ACCEPT_UNKNOWN_INPUT_ARCH},
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'\0', NULL, N_("Accept input files whose architecture cannot be determined"), TWO_DASHES },
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{ {"no-accept-unknown-input-arch", no_argument, NULL, OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH},
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'\0', NULL, N_("Reject input files whose architecture is unknown"), TWO_DASHES },
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{ {"assert", required_argument, NULL, OPTION_ASSERT},
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'\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH },
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{ {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
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'\0', NULL, N_("Link against shared libraries"), ONE_DASH },
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{ {"dy", no_argument, NULL, OPTION_CALL_SHARED},
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'\0', NULL, NULL, ONE_DASH },
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{ {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
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'\0', NULL, NULL, ONE_DASH },
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{ {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
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'\0', NULL, N_("Do not link against shared libraries"), ONE_DASH },
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{ {"dn", no_argument, NULL, OPTION_NON_SHARED},
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'\0', NULL, NULL, ONE_DASH },
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{ {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
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'\0', NULL, NULL, ONE_DASH },
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{ {"static", no_argument, NULL, OPTION_NON_SHARED},
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'\0', NULL, NULL, ONE_DASH },
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{ {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
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'\0', NULL, N_("Bind global references locally"), ONE_DASH },
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||
{ {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS},
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'\0', NULL, N_("Check section addresses for overlaps (default)"), TWO_DASHES },
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||
{ {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS},
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'\0', NULL, N_("Do not check section addresses for overlaps"),
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TWO_DASHES },
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||
{ {"cref", no_argument, NULL, OPTION_CREF},
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'\0', NULL, N_("Output cross reference table"), TWO_DASHES },
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||
{ {"defsym", required_argument, NULL, OPTION_DEFSYM},
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||
'\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
|
||
{ {"demangle", optional_argument, NULL, OPTION_DEMANGLE},
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'\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"), TWO_DASHES },
|
||
{ {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
|
||
'\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
|
||
{ {"fini", required_argument, NULL, OPTION_FINI},
|
||
'\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH },
|
||
{ {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
|
||
'\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
|
||
{ {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
|
||
'\0', NULL, N_("Remove unused sections (on some targets)"),
|
||
TWO_DASHES },
|
||
{ {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS},
|
||
'\0', NULL, N_("Don't remove unused sections (default)"),
|
||
TWO_DASHES },
|
||
{ {"help", no_argument, NULL, OPTION_HELP},
|
||
'\0', NULL, N_("Print option help"), TWO_DASHES },
|
||
{ {"init", required_argument, NULL, OPTION_INIT},
|
||
'\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH },
|
||
{ {"Map", required_argument, NULL, OPTION_MAP},
|
||
'\0', N_("FILE"), N_("Write a map file"), ONE_DASH },
|
||
{ {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON},
|
||
'\0', NULL, N_("Do not define Common storage"), TWO_DASHES },
|
||
{ {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
|
||
'\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES },
|
||
{ {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
|
||
'\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
|
||
{ {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
|
||
'\0', NULL, N_("Do not allow unresolved references in object files"), TWO_DASHES },
|
||
{ {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED},
|
||
'\0', NULL, N_("Allow unresolved references in shared libaries"), TWO_DASHES },
|
||
{ {"no-allow-shlib-undefined", no_argument, NULL, OPTION_NO_ALLOW_SHLIB_UNDEFINED},
|
||
'\0', NULL, N_("Do not allow unresolved references in shared libs"), TWO_DASHES },
|
||
{ {"allow-multiple-definition", no_argument, NULL, OPTION_ALLOW_MULTIPLE_DEFINITION},
|
||
'\0', NULL, N_("Allow multiple definitions"), TWO_DASHES },
|
||
{ {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION},
|
||
'\0', NULL, N_("Disallow undefined version"), TWO_DASHES },
|
||
{ {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
|
||
'\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
|
||
{ {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
|
||
'\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES },
|
||
{ {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
|
||
'\0', NULL, N_("Create an output file even if errors occur"), TWO_DASHES },
|
||
{ {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
|
||
'\0', NULL, NULL, NO_HELP },
|
||
{ {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB},
|
||
'\0', NULL, N_("Only use library directories specified on\n\t\t\t\tthe command line"), ONE_DASH },
|
||
{ {"oformat", required_argument, NULL, OPTION_OFORMAT},
|
||
'\0', N_("TARGET"), N_("Specify target of output file"), EXACTLY_TWO_DASHES },
|
||
{ {"qmagic", no_argument, NULL, OPTION_IGNORE},
|
||
'\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
|
||
{ {"relax", no_argument, NULL, OPTION_RELAX},
|
||
'\0', NULL, N_("Relax branches on certain targets"), TWO_DASHES },
|
||
{ {"retain-symbols-file", required_argument, NULL,
|
||
OPTION_RETAIN_SYMBOLS_FILE},
|
||
'\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES },
|
||
{ {"rpath", required_argument, NULL, OPTION_RPATH},
|
||
'\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH },
|
||
{ {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
|
||
'\0', N_("PATH"), N_("Set link time shared library search path"), ONE_DASH },
|
||
{ {"shared", no_argument, NULL, OPTION_SHARED},
|
||
'\0', NULL, N_("Create a shared library"), ONE_DASH },
|
||
{ {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */
|
||
'\0', NULL, NULL, ONE_DASH },
|
||
{ {"pie", no_argument, NULL, OPTION_PIE},
|
||
'\0', NULL, N_("Create a position independent executable"), ONE_DASH },
|
||
{ {"pic-executable", no_argument, NULL, OPTION_PIE},
|
||
'\0', NULL, NULL, TWO_DASHES },
|
||
{ {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
|
||
'\0', NULL, N_("Sort common symbols by size"), TWO_DASHES },
|
||
{ {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
|
||
'\0', NULL, NULL, NO_HELP },
|
||
{ {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS},
|
||
'\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"), TWO_DASHES },
|
||
{ {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE},
|
||
'\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"), TWO_DASHES },
|
||
{ {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC},
|
||
'\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"), TWO_DASHES },
|
||
{ {"stats", no_argument, NULL, OPTION_STATS},
|
||
'\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
|
||
{ {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
|
||
'\0', NULL, N_("Display target specific options"), TWO_DASHES },
|
||
{ {"task-link", required_argument, NULL, OPTION_TASK_LINK},
|
||
'\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
|
||
{ {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
|
||
'\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
|
||
{ {"section-start", required_argument, NULL, OPTION_SECTION_START},
|
||
'\0', N_("SECTION=ADDRESS"), N_("Set address of named section"), TWO_DASHES },
|
||
{ {"Tbss", required_argument, NULL, OPTION_TBSS},
|
||
'\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
|
||
{ {"Tdata", required_argument, NULL, OPTION_TDATA},
|
||
'\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH },
|
||
{ {"Ttext", required_argument, NULL, OPTION_TTEXT},
|
||
'\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH },
|
||
{ {"unresolved-symbols=<method>", required_argument, NULL, OPTION_UNRESOLVED_SYMBOLS},
|
||
'\0', NULL, N_("How to handle unresolved symbols. <method> is:\n\t\t\t\tignore-all, report-all, ignore-in-object-files,\n\t\t\t\tignore-in-shared-libs"),
|
||
TWO_DASHES },
|
||
{ {"verbose", no_argument, NULL, OPTION_VERBOSE},
|
||
'\0', NULL, N_("Output lots of information during link"), TWO_DASHES },
|
||
{ {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */
|
||
'\0', NULL, NULL, NO_HELP },
|
||
{ {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
|
||
'\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
|
||
{ {"version-exports-section", required_argument, NULL,
|
||
OPTION_VERSION_EXPORTS_SECTION },
|
||
'\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n\t\t\t\tSYMBOL as the version."),
|
||
TWO_DASHES },
|
||
{ {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
|
||
'\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
|
||
{ {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
|
||
'\0', NULL, N_("Warn if global constructors/destructors are seen"),
|
||
TWO_DASHES },
|
||
{ {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
|
||
'\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
|
||
{ {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
|
||
'\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
|
||
{ {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
|
||
'\0', NULL, N_("Warn if start of section changes due to alignment"),
|
||
TWO_DASHES },
|
||
{ {"warn-unresolved-symbols", no_argument, NULL, OPTION_WARN_UNRESOLVED_SYMBOLS},
|
||
'\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES },
|
||
{ {"error-unresolved-symbols", no_argument, NULL, OPTION_ERROR_UNRESOLVED_SYMBOLS},
|
||
'\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES },
|
||
{ {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
|
||
'\0', NULL, N_("Treat warnings as errors"),
|
||
TWO_DASHES },
|
||
{ {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
|
||
'\0', NULL, N_("Include all objects from following archives"), TWO_DASHES },
|
||
{ {"as-needed", no_argument, NULL, OPTION_AS_NEEDED},
|
||
'\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"), TWO_DASHES },
|
||
{ {"no-as-needed", no_argument, NULL, OPTION_NO_AS_NEEDED},
|
||
'\0', NULL, N_("Always set DT_NEEDED for following dynamic libs"), TWO_DASHES },
|
||
{ {"wrap", required_argument, NULL, OPTION_WRAP},
|
||
'\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES }
|
||
};
|
||
|
||
#define OPTION_COUNT ARRAY_SIZE (ld_options)
|
||
|
||
void
|
||
parse_args (unsigned argc, char **argv)
|
||
{
|
||
unsigned i;
|
||
int is, il, irl;
|
||
int ingroup = 0;
|
||
char *default_dirlist = NULL;
|
||
char *shortopts;
|
||
struct option *longopts;
|
||
struct option *really_longopts;
|
||
int last_optind;
|
||
enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
|
||
|
||
shortopts = xmalloc (OPTION_COUNT * 3 + 2);
|
||
longopts = xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1));
|
||
really_longopts = xmalloc (sizeof (*really_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;
|
||
irl = 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)
|
||
{
|
||
if (ld_options[i].control == EXACTLY_TWO_DASHES)
|
||
{
|
||
really_longopts[irl] = ld_options[i].opt;
|
||
++irl;
|
||
}
|
||
else
|
||
{
|
||
longopts[il] = ld_options[i].opt;
|
||
++il;
|
||
}
|
||
}
|
||
}
|
||
shortopts[is] = '\0';
|
||
longopts[il].name = NULL;
|
||
really_longopts[irl].name = NULL;
|
||
|
||
ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts);
|
||
|
||
/* 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";
|
||
|
||
/* Because we permit long options to start with a single dash, and
|
||
we have a --library option, and the -l option is conventionally
|
||
used with an immediately following argument, we can have bad
|
||
results if somebody tries to use -l with a library whose name
|
||
happens to start with "ibrary", as in -li. We avoid problems by
|
||
simply turning -l into --library. This means that users will
|
||
have to use two dashes in order to use --library, which is OK
|
||
since that's how it is documented.
|
||
|
||
FIXME: It's possible that this problem can arise for other short
|
||
options as well, although the user does always have the recourse
|
||
of adding a space between the option and the argument. */
|
||
for (i = 1; i < argc; i++)
|
||
{
|
||
if (argv[i][0] == '-'
|
||
&& argv[i][1] == 'l'
|
||
&& argv[i][2] != '\0')
|
||
{
|
||
char *n;
|
||
|
||
n = xmalloc (strlen (argv[i]) + 20);
|
||
sprintf (n, "--library=%s", argv[i] + 2);
|
||
argv[i] = n;
|
||
}
|
||
}
|
||
|
||
last_optind = -1;
|
||
while (1)
|
||
{
|
||
int longind;
|
||
int optc;
|
||
|
||
/* Using last_optind lets us avoid calling ldemul_parse_args
|
||
multiple times on a single option, which would lead to
|
||
confusion in the internal static variables maintained by
|
||
getopt. This could otherwise happen for an argument like
|
||
-nx, in which the -n is parsed as a single option, and we
|
||
loop around to pick up the -x. */
|
||
if (optind != last_optind)
|
||
if (ldemul_parse_args (argc, argv))
|
||
continue;
|
||
|
||
/* getopt_long_only is like getopt_long, but '-' as well as '--'
|
||
can indicate a long option. */
|
||
opterr = 0;
|
||
last_optind = optind;
|
||
optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
|
||
if (optc == '?')
|
||
{
|
||
optind = last_optind;
|
||
optc = getopt_long (argc, argv, "-", really_longopts, &longind);
|
||
}
|
||
|
||
if (ldemul_handle_option (optc))
|
||
continue;
|
||
|
||
if (optc == -1)
|
||
break;
|
||
|
||
switch (optc)
|
||
{
|
||
case '?':
|
||
einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
|
||
default:
|
||
einfo (_("%P%F: use the --help option for usage information\n"));
|
||
|
||
case 1: /* File name. */
|
||
lang_add_input_file (optarg, lang_input_file_is_file_enum, 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:
|
||
command_line.cref = TRUE;
|
||
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_DEMANGLE:
|
||
demangling = TRUE;
|
||
if (optarg != NULL)
|
||
{
|
||
enum demangling_styles style;
|
||
|
||
style = cplus_demangle_name_to_style (optarg);
|
||
if (style == unknown_demangling)
|
||
einfo (_("%F%P: unknown demangling style `%s'"),
|
||
optarg);
|
||
|
||
cplus_demangle_set_style (style);
|
||
}
|
||
break;
|
||
case 'I': /* Used on Solaris. */
|
||
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. */
|
||
link_info.export_dynamic = TRUE;
|
||
break;
|
||
case 'e':
|
||
lang_add_entry (optarg, TRUE);
|
||
break;
|
||
case 'f':
|
||
if (command_line.auxiliary_filters == NULL)
|
||
{
|
||
command_line.auxiliary_filters = xmalloc (2 * sizeof (char *));
|
||
command_line.auxiliary_filters[0] = optarg;
|
||
command_line.auxiliary_filters[1] = NULL;
|
||
}
|
||
else
|
||
{
|
||
int c;
|
||
char **p;
|
||
|
||
c = 0;
|
||
for (p = command_line.auxiliary_filters; *p != NULL; p++)
|
||
++c;
|
||
command_line.auxiliary_filters
|
||
= xrealloc (command_line.auxiliary_filters,
|
||
(c + 2) * sizeof (char *));
|
||
command_line.auxiliary_filters[c] = optarg;
|
||
command_line.auxiliary_filters[c + 1] = NULL;
|
||
}
|
||
break;
|
||
case 'F':
|
||
command_line.filter_shlib = optarg;
|
||
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_GC_SECTIONS:
|
||
command_line.gc_sections = TRUE;
|
||
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, 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 OPTION_NO_OMAGIC:
|
||
config.text_read_only = TRUE;
|
||
config.magic_demand_paged = TRUE;
|
||
/* NB/ Does not set dynamic_link to TRUE.
|
||
Use --call-shared or -Bdynamic for this. */
|
||
break;
|
||
case 'n':
|
||
config.magic_demand_paged = FALSE;
|
||
config.dynamic_link = FALSE;
|
||
break;
|
||
case OPTION_NO_DEFINE_COMMON:
|
||
command_line.inhibit_common_definition = TRUE;
|
||
break;
|
||
case OPTION_NO_DEMANGLE:
|
||
demangling = FALSE;
|
||
break;
|
||
case OPTION_NO_GC_SECTIONS:
|
||
command_line.gc_sections = FALSE;
|
||
break;
|
||
case OPTION_NO_KEEP_MEMORY:
|
||
link_info.keep_memory = FALSE;
|
||
break;
|
||
case OPTION_NO_UNDEFINED:
|
||
link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
|
||
break;
|
||
case OPTION_ALLOW_SHLIB_UNDEFINED:
|
||
link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
|
||
break;
|
||
case OPTION_NO_ALLOW_SHLIB_UNDEFINED:
|
||
link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
|
||
break;
|
||
case OPTION_UNRESOLVED_SYMBOLS:
|
||
if (strcmp (optarg, "ignore-all") == 0)
|
||
{
|
||
link_info.unresolved_syms_in_objects = RM_IGNORE;
|
||
link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
|
||
}
|
||
else if (strcmp (optarg, "report-all") == 0)
|
||
{
|
||
link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
|
||
link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
|
||
}
|
||
else if (strcmp (optarg, "ignore-in-object-files") == 0)
|
||
{
|
||
link_info.unresolved_syms_in_objects = RM_IGNORE;
|
||
link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
|
||
}
|
||
else if (strcmp (optarg, "ignore-in-shared-libs") == 0)
|
||
{
|
||
link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
|
||
link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
|
||
}
|
||
else
|
||
einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg);
|
||
break;
|
||
case OPTION_WARN_UNRESOLVED_SYMBOLS:
|
||
how_to_report_unresolved_symbols = RM_GENERATE_WARNING;
|
||
if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR)
|
||
link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING;
|
||
if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR)
|
||
link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING;
|
||
break;
|
||
|
||
case OPTION_ERROR_UNRESOLVED_SYMBOLS:
|
||
how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
|
||
if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING)
|
||
link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
|
||
if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING)
|
||
link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
|
||
break;
|
||
case OPTION_ALLOW_MULTIPLE_DEFINITION:
|
||
link_info.allow_multiple_definition = TRUE;
|
||
break;
|
||
case OPTION_NO_UNDEFINED_VERSION:
|
||
link_info.allow_undefined_version = FALSE;
|
||
break;
|
||
case OPTION_NO_WARN_MISMATCH:
|
||
command_line.warn_mismatch = FALSE;
|
||
break;
|
||
case OPTION_NOINHIBIT_EXEC:
|
||
force_make_executable = TRUE;
|
||
break;
|
||
case OPTION_NOSTDLIB:
|
||
config.only_cmd_line_lib_dirs = 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. */
|
||
|
||
/* Enable optimizations of output files. */
|
||
link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE;
|
||
break;
|
||
case 'o':
|
||
lang_add_output (optarg, 0);
|
||
break;
|
||
case OPTION_OFORMAT:
|
||
lang_add_output_format (optarg, NULL, NULL, 0);
|
||
break;
|
||
case 'q':
|
||
link_info.emitrelocations = TRUE;
|
||
break;
|
||
case 'i':
|
||
case 'r':
|
||
if (optind == last_optind)
|
||
/* This can happen if the user put "-rpath,a" on the command
|
||
line. (Or something similar. The comma is important).
|
||
Getopt becomes confused and thinks that this is a -r option
|
||
but it cannot parse the text after the -r so it refuses to
|
||
increment the optind counter. Detect this case and issue
|
||
an error message here. We cannot just make this a warning,
|
||
increment optind, and continue because getopt is too confused
|
||
and will seg-fault the next time around. */
|
||
einfo(_("%P%F: bad -rpath option\n"));
|
||
|
||
link_info.relocatable = 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,
|
||
NULL);
|
||
break;
|
||
}
|
||
}
|
||
/* Fall through. */
|
||
case OPTION_RPATH:
|
||
if (command_line.rpath == NULL)
|
||
command_line.rpath = xstrdup (optarg);
|
||
else
|
||
{
|
||
size_t rpath_len = strlen (command_line.rpath);
|
||
size_t optarg_len = strlen (optarg);
|
||
char *buf;
|
||
char *cp = command_line.rpath;
|
||
|
||
/* First see whether OPTARG is already in the path. */
|
||
do
|
||
{
|
||
size_t idx = 0;
|
||
|
||
while (optarg[idx] != '\0' && optarg[idx] == cp[idx])
|
||
++idx;
|
||
if (optarg[idx] == '\0'
|
||
&& (cp[idx] == '\0' || cp[idx] == ':'))
|
||
/* We found it. */
|
||
break;
|
||
|
||
/* Not yet found. */
|
||
cp = strchr (cp, ':');
|
||
if (cp != NULL)
|
||
++cp;
|
||
}
|
||
while (cp != NULL);
|
||
|
||
if (cp == NULL)
|
||
{
|
||
buf = xmalloc (rpath_len + optarg_len + 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 = xstrdup (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_STRIP_DISCARDED:
|
||
link_info.strip_discarded = TRUE;
|
||
break;
|
||
case OPTION_NO_STRIP_DISCARDED:
|
||
link_info.strip_discarded = FALSE;
|
||
break;
|
||
case OPTION_SHARED:
|
||
if (config.has_shared)
|
||
{
|
||
link_info.shared = TRUE;
|
||
/* When creating a shared library, the default
|
||
behaviour is to ignore any unresolved references. */
|
||
if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
|
||
link_info.unresolved_syms_in_objects = RM_IGNORE;
|
||
if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
|
||
link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
|
||
}
|
||
else
|
||
einfo (_("%P%F: -shared not supported\n"));
|
||
break;
|
||
case OPTION_PIE:
|
||
if (config.has_shared)
|
||
{
|
||
link_info.shared = TRUE;
|
||
link_info.pie = TRUE;
|
||
}
|
||
else
|
||
einfo (_("%P%F: -pie not supported\n"));
|
||
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_SECTION_START:
|
||
{
|
||
char *optarg2;
|
||
char *sec_name;
|
||
int len;
|
||
|
||
/* Check for <something>=<somthing>... */
|
||
optarg2 = strchr (optarg, '=');
|
||
if (optarg2 == NULL)
|
||
einfo (_("%P%F: invalid argument to option \"--section-start\"\n"));
|
||
|
||
optarg2++;
|
||
|
||
/* So far so good. Are all the args present? */
|
||
if ((*optarg == '\0') || (*optarg2 == '\0'))
|
||
einfo (_("%P%F: missing argument(s) to option \"--section-start\"\n"));
|
||
|
||
/* We must copy the section name as set_section_start
|
||
doesn't do it for us. */
|
||
len = optarg2 - optarg;
|
||
sec_name = xmalloc (len);
|
||
memcpy (sec_name, optarg, len - 1);
|
||
sec_name[len - 1] = 0;
|
||
|
||
/* Then set it... */
|
||
set_section_start (sec_name, optarg2);
|
||
}
|
||
break;
|
||
case OPTION_TARGET_HELP:
|
||
/* Mention any target specific options. */
|
||
ldemul_list_emulation_options (stdout);
|
||
exit (0);
|
||
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_TASK_LINK:
|
||
link_info.task_link = TRUE;
|
||
/* Fall through - do an implied -r option. */
|
||
case OPTION_UR:
|
||
link_info.relocatable = 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_UNIQUE:
|
||
if (optarg != NULL)
|
||
lang_add_unique (optarg);
|
||
else
|
||
config.unique_orphan_sections = TRUE;
|
||
break;
|
||
case OPTION_VERBOSE:
|
||
ldversion (1);
|
||
version_printed = TRUE;
|
||
trace_file_tries = TRUE;
|
||
overflow_cutoff_limit = -2;
|
||
break;
|
||
case 'v':
|
||
ldversion (0);
|
||
version_printed = TRUE;
|
||
break;
|
||
case 'V':
|
||
ldversion (1);
|
||
version_printed = TRUE;
|
||
break;
|
||
case OPTION_VERSION:
|
||
ldversion (2);
|
||
xexit (0);
|
||
break;
|
||
case OPTION_VERSION_SCRIPT:
|
||
/* This option indicates a small script that only specifies
|
||
version information. Read it, but don't assume that
|
||
we've seen a linker script. */
|
||
{
|
||
FILE *hold_script_handle;
|
||
|
||
hold_script_handle = saved_script_handle;
|
||
ldfile_open_command_file (optarg);
|
||
saved_script_handle = hold_script_handle;
|
||
parser_input = input_version_script;
|
||
yyparse ();
|
||
}
|
||
break;
|
||
case OPTION_VERSION_EXPORTS_SECTION:
|
||
/* This option records a version symbol to be applied to the
|
||
symbols listed for export to be found in the object files
|
||
.exports sections. */
|
||
command_line.version_exports_section = optarg;
|
||
break;
|
||
case OPTION_WARN_COMMON:
|
||
config.warn_common = TRUE;
|
||
break;
|
||
case OPTION_WARN_CONSTRUCTORS:
|
||
config.warn_constructors = TRUE;
|
||
break;
|
||
case OPTION_WARN_FATAL:
|
||
config.fatal_warnings = TRUE;
|
||
break;
|
||
case OPTION_WARN_MULTIPLE_GP:
|
||
config.warn_multiple_gp = TRUE;
|
||
break;
|
||
case OPTION_WARN_ONCE:
|
||
config.warn_once = TRUE;
|
||
break;
|
||
case OPTION_WARN_SECTION_ALIGN:
|
||
config.warn_section_align = TRUE;
|
||
break;
|
||
case OPTION_WHOLE_ARCHIVE:
|
||
whole_archive = TRUE;
|
||
break;
|
||
case OPTION_AS_NEEDED:
|
||
as_needed = TRUE;
|
||
break;
|
||
case OPTION_NO_AS_NEEDED:
|
||
as_needed = FALSE;
|
||
break;
|
||
case OPTION_WRAP:
|
||
add_wrap (optarg);
|
||
break;
|
||
case OPTION_DISCARD_NONE:
|
||
link_info.discard = discard_none;
|
||
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;
|
||
if (default_dirlist != NULL)
|
||
free (default_dirlist);
|
||
default_dirlist = xstrdup (optarg);
|
||
break;
|
||
case 'y':
|
||
add_ysym (optarg);
|
||
break;
|
||
case OPTION_SPARE_DYNAMIC_TAGS:
|
||
link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0);
|
||
break;
|
||
case OPTION_SPLIT_BY_RELOC:
|
||
if (optarg != NULL)
|
||
config.split_by_reloc = strtoul (optarg, NULL, 0);
|
||
else
|
||
config.split_by_reloc = 32768;
|
||
break;
|
||
case OPTION_SPLIT_BY_FILE:
|
||
if (optarg != NULL)
|
||
config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
|
||
else
|
||
config.split_by_file = 1;
|
||
break;
|
||
case OPTION_CHECK_SECTIONS:
|
||
command_line.check_section_addresses = TRUE;
|
||
break;
|
||
case OPTION_NO_CHECK_SECTIONS:
|
||
command_line.check_section_addresses = FALSE;
|
||
break;
|
||
case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH:
|
||
command_line.accept_unknown_input_arch = TRUE;
|
||
break;
|
||
case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH:
|
||
command_line.accept_unknown_input_arch = FALSE;
|
||
break;
|
||
case '(':
|
||
if (ingroup)
|
||
einfo (_("%P%F: may not nest groups (--help for usage)\n"));
|
||
|
||
lang_enter_group ();
|
||
ingroup = 1;
|
||
break;
|
||
case ')':
|
||
if (! ingroup)
|
||
einfo (_("%P%F: group ended before it began (--help for usage)\n"));
|
||
|
||
lang_leave_group ();
|
||
ingroup = 0;
|
||
break;
|
||
|
||
case OPTION_INIT:
|
||
link_info.init_function = optarg;
|
||
break;
|
||
|
||
case OPTION_FINI:
|
||
link_info.fini_function = optarg;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (ingroup)
|
||
lang_leave_group ();
|
||
|
||
if (default_dirlist != NULL)
|
||
{
|
||
set_default_dirlist (default_dirlist);
|
||
free (default_dirlist);
|
||
}
|
||
|
||
if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
|
||
/* FIXME: Should we allow emulations a chance to set this ? */
|
||
link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
|
||
|
||
if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
|
||
/* FIXME: Should we allow emulations a chance to set this ? */
|
||
link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
|
||
}
|
||
|
||
/* Add the (colon-separated) elements of DIRLIST_PTR to the
|
||
library search path. */
|
||
|
||
static void
|
||
set_default_dirlist (char *dirlist_ptr)
|
||
{
|
||
char *p;
|
||
|
||
while (1)
|
||
{
|
||
p = strchr (dirlist_ptr, PATH_SEPARATOR);
|
||
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 (char *sect, char *valstr)
|
||
{
|
||
const char *end;
|
||
bfd_vma val = bfd_scan_vma (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 (void)
|
||
{
|
||
unsigned 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)
|
||
{
|
||
bfd_boolean comma;
|
||
int len;
|
||
unsigned 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)
|
||
{
|
||
int two_dashes =
|
||
(ld_options[j].control == TWO_DASHES
|
||
|| ld_options[j].control == EXACTLY_TWO_DASHES);
|
||
|
||
printf ("%s-%s%s",
|
||
comma ? ", " : "",
|
||
two_dashes ? "-" : "",
|
||
ld_options[j].opt.name);
|
||
len += ((comma ? 2 : 0)
|
||
+ 1
|
||
+ (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));
|
||
}
|
||
}
|
||
|
||
/* Note: Various tools (such as libtool) depend upon the
|
||
format of the listings below - do not change them. */
|
||
/* xgettext:c-format */
|
||
printf (_("%s: supported targets:"), program_name);
|
||
targets = bfd_target_list ();
|
||
for (pp = targets; *pp != NULL; pp++)
|
||
printf (" %s", *pp);
|
||
free (targets);
|
||
printf ("\n");
|
||
|
||
/* xgettext:c-format */
|
||
printf (_("%s: supported emulations: "), program_name);
|
||
ldemul_list_emulations (stdout);
|
||
printf ("\n");
|
||
|
||
/* xgettext:c-format */
|
||
printf (_("%s: emulation specific options:\n"), program_name);
|
||
ldemul_list_emulation_options (stdout);
|
||
printf ("\n");
|
||
|
||
printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);
|
||
}
|