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983 lines
31 KiB
C
983 lines
31 KiB
C
/* Parse options for the GNU linker.
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Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 1998
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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 <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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#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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/* Omit args to avoid the possibility of clashing with a system header
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that might disagree about consts. */
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unsigned long strtoul ();
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static void set_default_dirlist PARAMS ((char *dirlist_ptr));
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static void set_section_start PARAMS ((char *sect, char *valstr));
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static void help PARAMS ((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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#define OPTION_ASSERT 150
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#define OPTION_CALL_SHARED (OPTION_ASSERT + 1)
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#define OPTION_CREF (OPTION_CALL_SHARED + 1)
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#define OPTION_DEFSYM (OPTION_CREF + 1)
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#define OPTION_DYNAMIC_LINKER (OPTION_DEFSYM + 1)
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#define OPTION_EB (OPTION_DYNAMIC_LINKER + 1)
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#define OPTION_EL (OPTION_EB + 1)
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#define OPTION_EMBEDDED_RELOCS (OPTION_EL + 1)
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#define OPTION_EXPORT_DYNAMIC (OPTION_EMBEDDED_RELOCS + 1)
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#define OPTION_HELP (OPTION_EXPORT_DYNAMIC + 1)
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#define OPTION_IGNORE (OPTION_HELP + 1)
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#define OPTION_MAP (OPTION_IGNORE + 1)
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#define OPTION_NO_KEEP_MEMORY (OPTION_MAP + 1)
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#define OPTION_NO_WARN_MISMATCH (OPTION_NO_KEEP_MEMORY + 1)
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#define OPTION_NOINHIBIT_EXEC (OPTION_NO_WARN_MISMATCH + 1)
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#define OPTION_NON_SHARED (OPTION_NOINHIBIT_EXEC + 1)
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#define OPTION_NO_WHOLE_ARCHIVE (OPTION_NON_SHARED + 1)
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#define OPTION_OFORMAT (OPTION_NO_WHOLE_ARCHIVE + 1)
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#define OPTION_RELAX (OPTION_OFORMAT + 1)
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#define OPTION_RETAIN_SYMBOLS_FILE (OPTION_RELAX + 1)
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#define OPTION_RPATH (OPTION_RETAIN_SYMBOLS_FILE + 1)
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#define OPTION_RPATH_LINK (OPTION_RPATH + 1)
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#define OPTION_SHARED (OPTION_RPATH_LINK + 1)
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#define OPTION_SONAME (OPTION_SHARED + 1)
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#define OPTION_SORT_COMMON (OPTION_SONAME + 1)
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#define OPTION_STATS (OPTION_SORT_COMMON + 1)
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#define OPTION_SYMBOLIC (OPTION_STATS + 1)
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#define OPTION_TASK_LINK (OPTION_SYMBOLIC + 1)
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#define OPTION_TBSS (OPTION_TASK_LINK + 1)
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#define OPTION_TDATA (OPTION_TBSS + 1)
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#define OPTION_TTEXT (OPTION_TDATA + 1)
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#define OPTION_TRADITIONAL_FORMAT (OPTION_TTEXT + 1)
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#define OPTION_UR (OPTION_TRADITIONAL_FORMAT + 1)
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#define OPTION_VERBOSE (OPTION_UR + 1)
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#define OPTION_VERSION (OPTION_VERBOSE + 1)
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#define OPTION_VERSION_SCRIPT (OPTION_VERSION + 1)
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#define OPTION_WARN_COMMON (OPTION_VERSION_SCRIPT + 1)
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#define OPTION_WARN_CONSTRUCTORS (OPTION_WARN_COMMON + 1)
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#define OPTION_WARN_MULTIPLE_GP (OPTION_WARN_CONSTRUCTORS + 1)
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#define OPTION_WARN_ONCE (OPTION_WARN_MULTIPLE_GP + 1)
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#define OPTION_WARN_SECTION_ALIGN (OPTION_WARN_ONCE + 1)
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#define OPTION_SPLIT_BY_RELOC (OPTION_WARN_SECTION_ALIGN + 1)
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#define OPTION_SPLIT_BY_FILE (OPTION_SPLIT_BY_RELOC + 1)
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#define OPTION_WHOLE_ARCHIVE (OPTION_SPLIT_BY_FILE + 1)
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#define OPTION_WRAP (OPTION_WHOLE_ARCHIVE + 1)
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#define OPTION_FORCE_EXE_SUFFIX (OPTION_WRAP + 1)
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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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{
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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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/* 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', "KEYWORD", "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', "ARCH", "Set architecture" , TWO_DASHES },
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{ {"format", required_argument, NULL, 'b'},
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'b', "TARGET", "Specify target for following input files", TWO_DASHES },
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{ {"mri-script", required_argument, NULL, 'c'},
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'c', "FILE", "Read MRI format linker script", TWO_DASHES },
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{ {"dc", no_argument, NULL, 'd'},
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'd', NULL, "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', "ADDRESS", "Set start address", TWO_DASHES },
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{ {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
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'E', NULL, "Export all dynamic symbols", TWO_DASHES },
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{ {"auxiliary", required_argument, NULL, 'f'},
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'f', "SHLIB", "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', "SHLIB", "Filter for shared object symbol table", TWO_DASHES },
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{ {NULL, no_argument, NULL, '\0'},
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'g', NULL, "Ignored", ONE_DASH },
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{ {"gpsize", required_argument, NULL, 'G'},
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'G', "SIZE", "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', "FILENAME", "Set internal name of shared library", ONE_DASH },
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{ {"library", required_argument, NULL, 'l'},
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'l', "LIBNAME", "Search for library LIBNAME", TWO_DASHES },
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{ {"library-path", required_argument, NULL, 'L'},
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'L', "DIRECTORY", "Add DIRECTORY to library search path", TWO_DASHES },
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{ {NULL, required_argument, NULL, '\0'},
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'm', "EMULATION", "Set emulation", ONE_DASH },
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{ {"print-map", no_argument, NULL, 'M'},
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'M', NULL, "Print map file on standard output", TWO_DASHES },
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{ {"nmagic", no_argument, NULL, 'n'},
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'n', NULL, "Do not page align data", TWO_DASHES },
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{ {"omagic", no_argument, NULL, 'N'},
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'N', NULL, "Do not page align data, do not make text readonly",
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TWO_DASHES },
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{ {"output", required_argument, NULL, 'o'},
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'o', "FILE", "Set output file name", TWO_DASHES },
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{ {NULL, required_argument, NULL, '\0'},
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'O', NULL, "Ignored", ONE_DASH },
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{ {"relocateable", no_argument, NULL, 'r'},
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'r', NULL, "Generate relocateable 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', "FILE", "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, "Strip all symbols", TWO_DASHES },
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{ {"strip-debug", no_argument, NULL, 'S'},
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'S', NULL, "Strip debugging symbols", TWO_DASHES },
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{ {"trace", no_argument, NULL, 't'},
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't', NULL, "Trace file opens", TWO_DASHES },
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{ {"script", required_argument, NULL, 'T'},
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'T', "FILE", "Read linker script", TWO_DASHES },
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{ {"undefined", required_argument, NULL, 'u'},
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'u', "SYMBOL", "Start with undefined reference to SYMBOL", TWO_DASHES },
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{ {"version", no_argument, NULL, OPTION_VERSION},
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'v', NULL, "Print version information", TWO_DASHES },
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{ {NULL, no_argument, NULL, '\0'},
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'V', NULL, "Print version and emulation information", ONE_DASH },
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{ {"discard-all", no_argument, NULL, 'x'},
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'x', NULL, "Discard all local symbols", TWO_DASHES },
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{ {"discard-locals", no_argument, NULL, 'X'},
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'X', NULL, "Discard temporary local symbols", TWO_DASHES },
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{ {"trace-symbol", required_argument, NULL, 'y'},
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'y', "SYMBOL", "Trace mentions of SYMBOL", TWO_DASHES },
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{ {NULL, required_argument, NULL, '\0'},
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'Y', "PATH", "Default search path for Solaris compatibility", ONE_DASH },
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{ {NULL, required_argument, NULL, '\0'},
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'z', "KEYWORD", "Ignored for Solaris compatibility", ONE_DASH },
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{ {"start-group", no_argument, NULL, '('},
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'(', NULL, "Start a group", TWO_DASHES },
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{ {"end-group", no_argument, NULL, ')'},
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')', NULL, "End a group", TWO_DASHES },
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{ {"assert", required_argument, NULL, OPTION_ASSERT},
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'\0', "KEYWORD", "Ignored for SunOS compatibility", ONE_DASH },
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{ {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
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'\0', NULL, "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, "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, "Bind global references locally", ONE_DASH },
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{ {"cref", no_argument, NULL, OPTION_CREF},
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'\0', NULL, "Output cross reference table", TWO_DASHES },
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{ {"defsym", required_argument, NULL, OPTION_DEFSYM},
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'\0', "SYMBOL=EXPRESSION", "Define a symbol", TWO_DASHES },
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{ {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
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'\0', "PROGRAM", "Set the dynamic linker to use", TWO_DASHES },
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{ {"EB", no_argument, NULL, OPTION_EB},
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'\0', NULL, "Link big-endian objects", ONE_DASH },
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{ {"EL", no_argument, NULL, OPTION_EL},
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'\0', NULL, "Link little-endian objects", ONE_DASH },
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{ {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
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'\0', NULL, "Generate embedded relocs", TWO_DASHES},
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{ {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
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'\0', NULL, "Force generation of file with .exe suffix", TWO_DASHES},
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{ {"help", no_argument, NULL, OPTION_HELP},
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'\0', NULL, "Print option help", TWO_DASHES },
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{ {"Map", required_argument, NULL, OPTION_MAP},
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'\0', "FILE", "Write a map file", ONE_DASH },
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{ {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
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'\0', NULL, "Use less memory and more disk I/O", TWO_DASHES },
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{ {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
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'\0', NULL, "Don't warn about mismatched input files", TWO_DASHES},
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{ {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
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'\0', NULL, "Turn off --whole-archive", TWO_DASHES },
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{ {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
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'\0', NULL, "Create an output file even if errors occur", TWO_DASHES },
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{ {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
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'\0', NULL, NULL, NO_HELP },
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{ {"oformat", required_argument, NULL, OPTION_OFORMAT},
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'\0', "TARGET", "Specify target of output file", TWO_DASHES },
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{ {"qmagic", no_argument, NULL, OPTION_IGNORE},
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'\0', NULL, "Ignored for Linux compatibility", ONE_DASH },
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{ {"Qy", no_argument, NULL, OPTION_IGNORE},
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'\0', NULL, "Ignored for SVR4 compatibility", ONE_DASH },
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{ {"relax", no_argument, NULL, OPTION_RELAX},
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'\0', NULL, "Relax branches on certain targets", TWO_DASHES },
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{ {"retain-symbols-file", required_argument, NULL,
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OPTION_RETAIN_SYMBOLS_FILE},
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'\0', "FILE", "Keep only symbols listed in FILE", TWO_DASHES },
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{ {"rpath", required_argument, NULL, OPTION_RPATH},
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'\0', "PATH", "Set runtime shared library search path", ONE_DASH },
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{ {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
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'\0', "PATH", "Set link time shared library search path", ONE_DASH },
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{ {"shared", no_argument, NULL, OPTION_SHARED},
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'\0', NULL, "Create a shared library", ONE_DASH },
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{ {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */
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'\0', NULL, NULL, ONE_DASH },
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{ {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
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'\0', NULL, "Sort common symbols by size", TWO_DASHES },
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{ {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
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'\0', NULL, NULL, NO_HELP },
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{ {"split-by-file", no_argument, NULL, OPTION_SPLIT_BY_FILE},
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'\0', NULL, "Split output sections for each file", TWO_DASHES },
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{ {"split-by-reloc", required_argument, NULL, OPTION_SPLIT_BY_RELOC},
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'\0', "COUNT", "Split output sections every COUNT relocs", TWO_DASHES },
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{ {"stats", no_argument, NULL, OPTION_STATS},
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'\0', NULL, "Print memory usage statistics", TWO_DASHES },
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{ {"task-link", required_argument, NULL, OPTION_TASK_LINK},
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'\0', "SYMBOL", "Do task level linking", TWO_DASHES },
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{ {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
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'\0', NULL, "Use same format as native linker", TWO_DASHES },
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{ {"Tbss", required_argument, NULL, OPTION_TBSS},
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'\0', "ADDRESS", "Set address of .bss section", ONE_DASH },
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{ {"Tdata", required_argument, NULL, OPTION_TDATA},
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'\0', "ADDRESS", "Set address of .data section", ONE_DASH },
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{ {"Ttext", required_argument, NULL, OPTION_TTEXT},
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'\0', "ADDRESS", "Set address of .text section", ONE_DASH },
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||
{ {"Ur", no_argument, NULL, OPTION_UR},
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'\0', NULL, "Build global constructor/destructor tables", ONE_DASH },
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{ {"verbose", no_argument, NULL, OPTION_VERBOSE},
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'\0', NULL, "Output lots of information during link", TWO_DASHES },
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{ {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */
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'\0', NULL, NULL, NO_HELP },
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||
{ {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
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'\0', "FILE", "Read version information script", TWO_DASHES },
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{ {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
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'\0', NULL, "Warn about duplicate common symbols", TWO_DASHES },
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{ {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
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||
'\0', NULL, "Warn if global constructors/destructors are seen",
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TWO_DASHES },
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||
{ {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
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'\0', NULL, "Warn if the multiple GP values are used", TWO_DASHES },
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{ {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
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'\0', NULL, "Warn only once per undefined symbol", TWO_DASHES },
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||
{ {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
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||
'\0', NULL, "Warn if start of section changes due to alignment",
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||
TWO_DASHES },
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||
{ {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
|
||
'\0', NULL, "Include all objects from following archives", TWO_DASHES },
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||
{ {"wrap", required_argument, NULL, OPTION_WRAP},
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||
'\0', "SYMBOL", "Use wrapper functions for SYMBOL", TWO_DASHES }
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||
};
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||
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||
#define OPTION_COUNT ((int) (sizeof ld_options / sizeof ld_options[0]))
|
||
|
||
void
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||
parse_args (argc, argv)
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||
int argc;
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||
char **argv;
|
||
{
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||
int i, is, il;
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||
int ingroup = 0;
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||
char *default_dirlist = NULL;
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||
char shortopts[OPTION_COUNT * 3 + 2];
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||
struct option longopts[OPTION_COUNT + 1];
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||
int last_optind;
|
||
|
||
/* 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. */
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||
shortopts[0] = '-';
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is = 1;
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il = 0;
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||
for (i = 0; i < OPTION_COUNT; i++)
|
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{
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||
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)
|
||
{
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||
shortopts[is] = ':';
|
||
++is;
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||
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 ((unsigned char) argv[i + 1][0])))
|
||
argv[i] = (char *) "--shared";
|
||
|
||
last_optind = -1;
|
||
while (1)
|
||
{
|
||
/* getopt_long_only is like getopt_long, but '-' as well as '--' can
|
||
indicate a long option. */
|
||
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;
|
||
last_optind = optind;
|
||
}
|
||
|
||
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:
|
||
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_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':
|
||
if (command_line.auxiliary_filters == NULL)
|
||
{
|
||
command_line.auxiliary_filters =
|
||
(char **) 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 =
|
||
(char **) 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_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_NO_WARN_MISMATCH:
|
||
command_line.warn_mismatch = 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_TASK_LINK:
|
||
link_info.task_link = true;
|
||
/* Fall through - do an implied -r option. */
|
||
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:
|
||
/* This output is intended to follow the GNU standards document. */
|
||
printf ("GNU ld %s\n", ld_program_version);
|
||
printf ("Copyright 1997 Free Software Foundation, Inc.\n");
|
||
printf ("\
|
||
This program is free software; you may redistribute it under the terms of\n\
|
||
the GNU General Public License. This program has absolutely no warranty.\n");
|
||
{
|
||
ld_emulation_xfer_type **ptr = ld_emulations;
|
||
|
||
printf (" Supported emulations:\n");
|
||
while (*ptr)
|
||
{
|
||
printf (" %s\n", (*ptr)->emulation_name);
|
||
ptr++;
|
||
}
|
||
}
|
||
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. */
|
||
{
|
||
boolean hold_had_script;
|
||
|
||
hold_had_script = had_script;
|
||
ldfile_open_command_file (optarg);
|
||
had_script = hold_had_script;
|
||
parser_input = input_version_script;
|
||
yyparse ();
|
||
}
|
||
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_WARN_SECTION_ALIGN:
|
||
config.warn_section_align = 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, 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 (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");
|
||
printf ("\nReport bugs to bug-gnu-utils@gnu.org\n");
|
||
}
|