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      1 /* Parse options for the GNU linker.
      2    Copyright (C) 1991-2014 Free Software Foundation, Inc.
      3 
      4    This file is part of the GNU Binutils.
      5 
      6    This program is free software; you can redistribute it and/or modify
      7    it under the terms of the GNU General Public License as published by
      8    the Free Software Foundation; either version 3 of the License, or
      9    (at your option) any later version.
     10 
     11    This program is distributed in the hope that it will be useful,
     12    but WITHOUT ANY WARRANTY; without even the implied warranty of
     13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14    GNU General Public License for more details.
     15 
     16    You should have received a copy of the GNU General Public License
     17    along with this program; if not, write to the Free Software
     18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
     19    MA 02110-1301, USA.  */
     20 
     21 #include "sysdep.h"
     22 #include "bfd.h"
     23 #include "bfdver.h"
     24 #include "libiberty.h"
     25 #include <stdio.h>
     26 #include <string.h>
     27 #include "safe-ctype.h"
     28 #include "getopt.h"
     29 #include "bfdlink.h"
     30 #include "ld.h"
     31 #include "ldmain.h"
     32 #include "ldmisc.h"
     33 #include "ldexp.h"
     34 #include "ldlang.h"
     35 #include <ldgram.h>
     36 #include "ldlex.h"
     37 #include "ldfile.h"
     38 #include "ldver.h"
     39 #include "ldemul.h"
     40 #include "demangle.h"
     41 #ifdef ENABLE_PLUGINS
     42 #include "plugin.h"
     43 #endif /* ENABLE_PLUGINS */
     44 
     45 #ifndef PATH_SEPARATOR
     46 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
     47 #define PATH_SEPARATOR ';'
     48 #else
     49 #define PATH_SEPARATOR ':'
     50 #endif
     51 #endif
     52 
     53 /* Somewhere above, sys/stat.h got included . . . .  */
     54 #if !defined(S_ISDIR) && defined(S_IFDIR)
     55 #define	S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
     56 #endif
     57 
     58 static void set_default_dirlist (char *);
     59 static void set_section_start (char *, char *);
     60 static void set_segment_start (const char *, char *);
     61 static void help (void);
     62 
     63 /* The long options.  This structure is used for both the option
     64    parsing and the help text.  */
     65 
     66 enum control_enum {
     67   /* Use one dash before long option name.  */
     68   ONE_DASH,
     69   /* Use two dashes before long option name.  */
     70   TWO_DASHES,
     71   /* Only accept two dashes before the long option name.
     72      This is an overloading of the use of this enum, since originally it
     73      was only intended to tell the --help display function how to display
     74      the long option name.  This feature was added in order to resolve
     75      the confusion about the -omagic command line switch.  Is it setting
     76      the output file name to "magic" or is it setting the NMAGIC flag on
     77      the output ?  It has been decided that it is setting the output file
     78      name, and that if you want to set the NMAGIC flag you should use -N
     79      or --omagic.  */
     80   EXACTLY_TWO_DASHES,
     81   /* Don't mention this option in --help output.  */
     82   NO_HELP
     83 };
     84 
     85 struct ld_option
     86 {
     87   /* The long option information.  */
     88   struct option opt;
     89   /* The short option with the same meaning ('\0' if none).  */
     90   char shortopt;
     91   /* The name of the argument (NULL if none).  */
     92   const char *arg;
     93   /* The documentation string.  If this is NULL, this is a synonym for
     94      the previous option.  */
     95   const char *doc;
     96   enum control_enum control;
     97 };
     98 
     99 static const struct ld_option ld_options[] =
    100 {
    101   { {NULL, required_argument, NULL, '\0'},
    102     'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
    103     ONE_DASH },
    104   { {"architecture", required_argument, NULL, 'A'},
    105     'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES },
    106   { {"format", required_argument, NULL, 'b'},
    107     'b', N_("TARGET"), N_("Specify target for following input files"),
    108     TWO_DASHES },
    109   { {"mri-script", required_argument, NULL, 'c'},
    110     'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES },
    111   { {"dc", no_argument, NULL, 'd'},
    112     'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
    113   { {"dp", no_argument, NULL, 'd'},
    114     '\0', NULL, NULL, ONE_DASH },
    115   { {"entry", required_argument, NULL, 'e'},
    116     'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
    117   { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
    118     'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
    119   { {"no-export-dynamic", no_argument, NULL, OPTION_NO_EXPORT_DYNAMIC},
    120     '\0', NULL, N_("Undo the effect of --export-dynamic"), TWO_DASHES },
    121   { {"EB", no_argument, NULL, OPTION_EB},
    122     '\0', NULL, N_("Link big-endian objects"), ONE_DASH },
    123   { {"EL", no_argument, NULL, OPTION_EL},
    124     '\0', NULL, N_("Link little-endian objects"), ONE_DASH },
    125   { {"auxiliary", required_argument, NULL, 'f'},
    126     'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
    127     TWO_DASHES },
    128   { {"filter", required_argument, NULL, 'F'},
    129     'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
    130     TWO_DASHES },
    131   { {NULL, no_argument, NULL, '\0'},
    132     'g', NULL, N_("Ignored"), ONE_DASH },
    133   { {"gpsize", required_argument, NULL, 'G'},
    134     'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
    135     TWO_DASHES },
    136   { {"soname", required_argument, NULL, OPTION_SONAME},
    137     'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
    138   { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
    139     'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
    140     TWO_DASHES },
    141   { {"library", required_argument, NULL, 'l'},
    142     'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
    143   { {"library-path", required_argument, NULL, 'L'},
    144     'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
    145     TWO_DASHES },
    146   { {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT},
    147     '\0', NULL, N_("Override the default sysroot location"), TWO_DASHES },
    148   { {NULL, required_argument, NULL, '\0'},
    149     'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
    150   { {"print-map", no_argument, NULL, 'M'},
    151     'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
    152   { {"nmagic", no_argument, NULL, 'n'},
    153     'n', NULL, N_("Do not page align data"), TWO_DASHES },
    154   { {"omagic", no_argument, NULL, 'N'},
    155     'N', NULL, N_("Do not page align data, do not make text readonly"),
    156     EXACTLY_TWO_DASHES },
    157   { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC},
    158     '\0', NULL, N_("Page align data, make text readonly"),
    159     EXACTLY_TWO_DASHES },
    160   { {"output", required_argument, NULL, 'o'},
    161     'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
    162   { {NULL, required_argument, NULL, '\0'},
    163     'O', NULL, N_("Optimize output file"), ONE_DASH },
    164 #ifdef ENABLE_PLUGINS
    165   { {"plugin", required_argument, NULL, OPTION_PLUGIN},
    166     '\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH },
    167   { {"plugin-opt", required_argument, NULL, OPTION_PLUGIN_OPT},
    168     '\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH },
    169   { {"flto", optional_argument, NULL, OPTION_IGNORE},
    170     '\0', NULL, N_("Ignored for GCC LTO option compatibility"),
    171     ONE_DASH },
    172   { {"flto-partition=", required_argument, NULL, OPTION_IGNORE},
    173     '\0', NULL, N_("Ignored for GCC LTO option compatibility"),
    174     ONE_DASH },
    175 #endif /* ENABLE_PLUGINS */
    176   { {"fuse-ld=", required_argument, NULL, OPTION_IGNORE},
    177     '\0', NULL, N_("Ignored for GCC linker option compatibility"),
    178     ONE_DASH },
    179   { {"Qy", no_argument, NULL, OPTION_IGNORE},
    180     '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
    181   { {"emit-relocs", no_argument, NULL, 'q'},
    182     'q', NULL, "Generate relocations in final output", TWO_DASHES },
    183   { {"relocatable", no_argument, NULL, 'r'},
    184     'r', NULL, N_("Generate relocatable output"), TWO_DASHES },
    185   { {NULL, no_argument, NULL, '\0'},
    186     'i', NULL, NULL, ONE_DASH },
    187   { {"just-symbols", required_argument, NULL, 'R'},
    188     'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
    189     TWO_DASHES },
    190   { {"strip-all", no_argument, NULL, 's'},
    191     's', NULL, N_("Strip all symbols"), TWO_DASHES },
    192   { {"strip-debug", no_argument, NULL, 'S'},
    193     'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
    194   { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED},
    195     '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES },
    196   { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED},
    197     '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES },
    198   { {"trace", no_argument, NULL, 't'},
    199     't', NULL, N_("Trace file opens"), TWO_DASHES },
    200   { {"script", required_argument, NULL, 'T'},
    201     'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
    202   { {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
    203     '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES },
    204   { {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
    205     '\0', NULL, NULL, ONE_DASH },
    206   { {"undefined", required_argument, NULL, 'u'},
    207     'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
    208     TWO_DASHES },
    209   { {"unique", optional_argument, NULL, OPTION_UNIQUE},
    210     '\0', N_("[=SECTION]"),
    211     N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES },
    212   { {"Ur", no_argument, NULL, OPTION_UR},
    213     '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
    214   { {"version", no_argument, NULL, OPTION_VERSION},
    215     'v', NULL, N_("Print version information"), TWO_DASHES },
    216   { {NULL, no_argument, NULL, '\0'},
    217     'V', NULL, N_("Print version and emulation information"), ONE_DASH },
    218   { {"discard-all", no_argument, NULL, 'x'},
    219     'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
    220   { {"discard-locals", no_argument, NULL, 'X'},
    221     'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES },
    222   { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE},
    223     '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES },
    224   { {"trace-symbol", required_argument, NULL, 'y'},
    225     'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
    226   { {NULL, required_argument, NULL, '\0'},
    227     'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
    228     ONE_DASH },
    229   { {"start-group", no_argument, NULL, '('},
    230     '(', NULL, N_("Start a group"), TWO_DASHES },
    231   { {"end-group", no_argument, NULL, ')'},
    232     ')', NULL, N_("End a group"), TWO_DASHES },
    233   { {"accept-unknown-input-arch", no_argument, NULL,
    234      OPTION_ACCEPT_UNKNOWN_INPUT_ARCH},
    235     '\0', NULL,
    236     N_("Accept input files whose architecture cannot be determined"),
    237     TWO_DASHES },
    238   { {"no-accept-unknown-input-arch", no_argument, NULL,
    239      OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH},
    240     '\0', NULL, N_("Reject input files whose architecture is unknown"),
    241     TWO_DASHES },
    242 
    243   /* The next two options are deprecated because of their similarity to
    244      --as-needed and --no-as-needed.  They have been replaced by
    245      --copy-dt-needed-entries and --no-copy-dt-needed-entries.  */
    246   { {"add-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_DYNAMIC},
    247     '\0', NULL, NULL, NO_HELP },
    248   { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC},
    249     '\0', NULL, NULL, NO_HELP },
    250 
    251   { {"as-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_REGULAR},
    252     '\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"),
    253     TWO_DASHES },
    254   { {"no-as-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR},
    255     '\0', NULL, N_("Always set DT_NEEDED for dynamic libraries mentioned on\n"
    256 		   "                                the command line"),
    257     TWO_DASHES },
    258   { {"assert", required_argument, NULL, OPTION_ASSERT},
    259     '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH },
    260   { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
    261     '\0', NULL, N_("Link against shared libraries"), ONE_DASH },
    262   { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
    263     '\0', NULL, NULL, ONE_DASH },
    264   { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
    265     '\0', NULL, NULL, ONE_DASH },
    266   { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
    267     '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH },
    268   { {"dn", no_argument, NULL, OPTION_NON_SHARED},
    269     '\0', NULL, NULL, ONE_DASH },
    270   { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
    271     '\0', NULL, NULL, ONE_DASH },
    272   { {"static", no_argument, NULL, OPTION_NON_SHARED},
    273     '\0', NULL, NULL, ONE_DASH },
    274   { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
    275     '\0', NULL, N_("Bind global references locally"), ONE_DASH },
    276   { {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS},
    277     '\0', NULL, N_("Bind global function references locally"), ONE_DASH },
    278   { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS},
    279     '\0', NULL, N_("Check section addresses for overlaps (default)"),
    280     TWO_DASHES },
    281   { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS},
    282     '\0', NULL, N_("Do not check section addresses for overlaps"),
    283     TWO_DASHES },
    284   { {"copy-dt-needed-entries", no_argument, NULL,
    285      OPTION_ADD_DT_NEEDED_FOR_DYNAMIC},
    286     '\0', NULL, N_("Copy DT_NEEDED links mentioned inside DSOs that follow"),
    287     TWO_DASHES },
    288   { {"no-copy-dt-needed-entries", no_argument, NULL,
    289      OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC},
    290     '\0', NULL, N_("Do not copy DT_NEEDED links mentioned inside DSOs that follow"),
    291     TWO_DASHES },
    292 
    293   { {"cref", no_argument, NULL, OPTION_CREF},
    294     '\0', NULL, N_("Output cross reference table"), TWO_DASHES },
    295   { {"defsym", required_argument, NULL, OPTION_DEFSYM},
    296     '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
    297   { {"demangle", optional_argument, NULL, OPTION_DEMANGLE},
    298     '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
    299     TWO_DASHES },
    300   { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
    301     '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
    302   { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
    303     '\0', NULL, N_("Treat warnings as errors"),
    304     TWO_DASHES },
    305   { {"no-fatal-warnings", no_argument, NULL, OPTION_NO_WARN_FATAL},
    306     '\0', NULL, N_("Do not treat warnings as errors (default)"),
    307     TWO_DASHES },
    308   { {"fini", required_argument, NULL, OPTION_FINI},
    309     '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH },
    310   { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
    311     '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
    312   { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
    313     '\0', NULL, N_("Remove unused sections (on some targets)"),
    314     TWO_DASHES },
    315   { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS},
    316     '\0', NULL, N_("Don't remove unused sections (default)"),
    317     TWO_DASHES },
    318   { {"print-gc-sections", no_argument, NULL, OPTION_PRINT_GC_SECTIONS},
    319     '\0', NULL, N_("List removed unused sections on stderr"),
    320     TWO_DASHES },
    321   { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS},
    322     '\0', NULL, N_("Do not list removed unused sections"),
    323     TWO_DASHES },
    324   { {"hash-size=<NUMBER>", required_argument, NULL, OPTION_HASH_SIZE},
    325     '\0', NULL, N_("Set default hash table size close to <NUMBER>"),
    326     TWO_DASHES },
    327   { {"help", no_argument, NULL, OPTION_HELP},
    328     '\0', NULL, N_("Print option help"), TWO_DASHES },
    329   { {"init", required_argument, NULL, OPTION_INIT},
    330     '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH },
    331   { {"Map", required_argument, NULL, OPTION_MAP},
    332     '\0', N_("FILE"), N_("Write a map file"), ONE_DASH },
    333   { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON},
    334     '\0', NULL, N_("Do not define Common storage"), TWO_DASHES },
    335   { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
    336     '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES },
    337   { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
    338     '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
    339   { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
    340     '\0', NULL, N_("Do not allow unresolved references in object files"),
    341     TWO_DASHES },
    342   { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED},
    343     '\0', NULL, N_("Allow unresolved references in shared libraries"),
    344     TWO_DASHES },
    345   { {"no-allow-shlib-undefined", no_argument, NULL,
    346      OPTION_NO_ALLOW_SHLIB_UNDEFINED},
    347     '\0', NULL, N_("Do not allow unresolved references in shared libs"),
    348     TWO_DASHES },
    349   { {"allow-multiple-definition", no_argument, NULL,
    350      OPTION_ALLOW_MULTIPLE_DEFINITION},
    351     '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES },
    352   { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION},
    353     '\0', NULL, N_("Disallow undefined version"), TWO_DASHES },
    354   { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER},
    355     '\0', NULL, N_("Create default symbol version"), TWO_DASHES },
    356   { {"default-imported-symver", no_argument, NULL,
    357       OPTION_DEFAULT_IMPORTED_SYMVER},
    358     '\0', NULL, N_("Create default symbol version for imported symbols"),
    359     TWO_DASHES },
    360   { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
    361     '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
    362   { {"no-warn-search-mismatch", no_argument, NULL,
    363      OPTION_NO_WARN_SEARCH_MISMATCH},
    364     '\0', NULL, N_("Don't warn on finding an incompatible library"),
    365     TWO_DASHES},
    366   { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
    367     '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES },
    368   { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
    369     '\0', NULL, N_("Create an output file even if errors occur"),
    370     TWO_DASHES },
    371   { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
    372     '\0', NULL, NULL, NO_HELP },
    373   { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB},
    374     '\0', NULL, N_("Only use library directories specified on\n"
    375 		   "                                the command line"),
    376     ONE_DASH },
    377   { {"oformat", required_argument, NULL, OPTION_OFORMAT},
    378     '\0', N_("TARGET"), N_("Specify target of output file"),
    379     EXACTLY_TWO_DASHES },
    380   { {"print-output-format", no_argument, NULL, OPTION_PRINT_OUTPUT_FORMAT},
    381     '\0', NULL, N_("Print default output format"), TWO_DASHES },
    382   { {"print-sysroot", no_argument, NULL, OPTION_PRINT_SYSROOT},
    383     '\0', NULL, N_("Print current sysroot"), TWO_DASHES },
    384   { {"qmagic", no_argument, NULL, OPTION_IGNORE},
    385     '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
    386   { {"reduce-memory-overheads", no_argument, NULL,
    387      OPTION_REDUCE_MEMORY_OVERHEADS},
    388     '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"),
    389     TWO_DASHES },
    390   { {"relax", no_argument, NULL, OPTION_RELAX},
    391     '\0', NULL, N_("Reduce code size by using target specific optimizations"), TWO_DASHES },
    392   { {"no-relax", no_argument, NULL, OPTION_NO_RELAX},
    393     '\0', NULL, N_("Do not use relaxation techniques to reduce code size"), TWO_DASHES },
    394   { {"retain-symbols-file", required_argument, NULL,
    395      OPTION_RETAIN_SYMBOLS_FILE},
    396     '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES },
    397   { {"rpath", required_argument, NULL, OPTION_RPATH},
    398     '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH },
    399   { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
    400     '\0', N_("PATH"), N_("Set link time shared library search path"),
    401     ONE_DASH },
    402   { {"shared", no_argument, NULL, OPTION_SHARED},
    403     '\0', NULL, N_("Create a shared library"), ONE_DASH },
    404   { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD.  */
    405     '\0', NULL, NULL, ONE_DASH },
    406   { {"pie", no_argument, NULL, OPTION_PIE},
    407     '\0', NULL, N_("Create a position independent executable"), ONE_DASH },
    408   { {"pic-executable", no_argument, NULL, OPTION_PIE},
    409     '\0', NULL, NULL, TWO_DASHES },
    410   { {"sort-common", optional_argument, NULL, OPTION_SORT_COMMON},
    411     '\0', N_("[=ascending|descending]"),
    412     N_("Sort common symbols by alignment [in specified order]"),
    413     TWO_DASHES },
    414   { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
    415     '\0', NULL, NULL, NO_HELP },
    416   { {"sort-section", required_argument, NULL, OPTION_SORT_SECTION},
    417     '\0', N_("name|alignment"),
    418     N_("Sort sections by name or maximum alignment"), TWO_DASHES },
    419   { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS},
    420     '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
    421     TWO_DASHES },
    422   { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE},
    423     '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
    424     TWO_DASHES },
    425   { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC},
    426     '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
    427     TWO_DASHES },
    428   { {"stats", no_argument, NULL, OPTION_STATS},
    429     '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
    430   { {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
    431     '\0', NULL, N_("Display target specific options"), TWO_DASHES },
    432   { {"task-link", required_argument, NULL, OPTION_TASK_LINK},
    433     '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
    434   { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
    435     '\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
    436   { {"section-start", required_argument, NULL, OPTION_SECTION_START},
    437     '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
    438     TWO_DASHES },
    439   { {"Tbss", required_argument, NULL, OPTION_TBSS},
    440     '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
    441   { {"Tdata", required_argument, NULL, OPTION_TDATA},
    442     '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH },
    443   { {"Ttext", required_argument, NULL, OPTION_TTEXT},
    444     '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH },
    445   { {"Ttext-segment", required_argument, NULL, OPTION_TTEXT_SEGMENT},
    446     '\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH },
    447   { {"Trodata-segment", required_argument, NULL, OPTION_TRODATA_SEGMENT},
    448     '\0', N_("ADDRESS"), N_("Set address of rodata segment"), ONE_DASH },
    449   { {"Tldata-segment", required_argument, NULL, OPTION_TLDATA_SEGMENT},
    450     '\0', N_("ADDRESS"), N_("Set address of ldata segment"), ONE_DASH },
    451   { {"unresolved-symbols=<method>", required_argument, NULL,
    452      OPTION_UNRESOLVED_SYMBOLS},
    453     '\0', NULL, N_("How to handle unresolved symbols.  <method> is:\n"
    454 		   "                                ignore-all, report-all, ignore-in-object-files,\n"
    455 		   "                                ignore-in-shared-libs"),
    456     TWO_DASHES },
    457   { {"verbose", optional_argument, NULL, OPTION_VERBOSE},
    458     '\0', N_("[=NUMBER]"),
    459     N_("Output lots of information during link"), TWO_DASHES },
    460   { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux.  */
    461     '\0', NULL, NULL, NO_HELP },
    462   { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
    463     '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
    464   { {"version-exports-section", required_argument, NULL,
    465      OPTION_VERSION_EXPORTS_SECTION },
    466     '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
    467 			   "                                SYMBOL as the version."),
    468     TWO_DASHES },
    469   { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA},
    470     '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES },
    471   { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW},
    472     '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES },
    473   { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO},
    474     '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES },
    475   { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST},
    476     '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES },
    477   { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
    478     '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
    479   { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
    480     '\0', NULL, N_("Warn if global constructors/destructors are seen"),
    481     TWO_DASHES },
    482   { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
    483     '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
    484   { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
    485     '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
    486   { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
    487     '\0', NULL, N_("Warn if start of section changes due to alignment"),
    488     TWO_DASHES },
    489   { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL},
    490     '\0', NULL, N_("Warn if shared object has DT_TEXTREL"),
    491     TWO_DASHES },
    492   { {"warn-alternate-em", no_argument, NULL, OPTION_WARN_ALTERNATE_EM},
    493     '\0', NULL, N_("Warn if an object has alternate ELF machine code"),
    494     TWO_DASHES },
    495   { {"warn-unresolved-symbols", no_argument, NULL,
    496      OPTION_WARN_UNRESOLVED_SYMBOLS},
    497     '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES },
    498   { {"error-unresolved-symbols", no_argument, NULL,
    499      OPTION_ERROR_UNRESOLVED_SYMBOLS},
    500     '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES },
    501   { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
    502     '\0', NULL, N_("Include all objects from following archives"),
    503     TWO_DASHES },
    504   { {"wrap", required_argument, NULL, OPTION_WRAP},
    505     '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
    506   { {"ignore-unresolved-symbol", required_argument, NULL,
    507     OPTION_IGNORE_UNRESOLVED_SYMBOL},
    508     '\0', N_("SYMBOL"),
    509     N_("Unresolved SYMBOL will not cause an error or warning"), TWO_DASHES },
    510   { {"push-state", no_argument, NULL, OPTION_PUSH_STATE},
    511     '\0', NULL, N_("Push state of flags governing input file handling"),
    512     TWO_DASHES },
    513   { {"pop-state", no_argument, NULL, OPTION_POP_STATE},
    514     '\0', NULL, N_("Pop state of flags governing input file handling"),
    515     TWO_DASHES },
    516   { {"warn-poison-system-directories", no_argument, NULL,
    517      OPTION_WARN_POISON_SYSTEM_DIRECTORIES},
    518     '\0', NULL, N_("Warn for -L options using system directories"),
    519     TWO_DASHES },
    520   { {"no-warn-poison-system-directories", no_argument, NULL,
    521      OPTION_NO_WARN_POISON_SYSTEM_DIRECTORIES},
    522     '\0', NULL, N_("Do not warn for -L options using system directories"),
    523     TWO_DASHES },
    524   { {"error-poison-system-directories", no_argument, NULL,
    525      OPTION_ERROR_POISON_SYSTEM_DIRECTORIES},
    526     '\0', NULL, N_("Give an error for -L options using system directories"),
    527     TWO_DASHES },
    528 };
    529 
    530 #define OPTION_COUNT ARRAY_SIZE (ld_options)
    531 
    532 void
    533 parse_args (unsigned argc, char **argv)
    534 {
    535   unsigned i;
    536   int is, il, irl;
    537   int ingroup = 0;
    538   char *default_dirlist = NULL;
    539   char *shortopts;
    540   struct option *longopts;
    541   struct option *really_longopts;
    542   int last_optind;
    543   enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
    544 
    545   shortopts = (char *) xmalloc (OPTION_COUNT * 3 + 2);
    546   longopts = (struct option *)
    547       xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1));
    548   really_longopts = (struct option *)
    549       malloc (sizeof (*really_longopts) * (OPTION_COUNT + 1));
    550 
    551   /* Starting the short option string with '-' is for programs that
    552      expect options and other ARGV-elements in any order and that care about
    553      the ordering of the two.  We describe each non-option ARGV-element
    554      as if it were the argument of an option with character code 1.  */
    555   shortopts[0] = '-';
    556   is = 1;
    557   il = 0;
    558   irl = 0;
    559   for (i = 0; i < OPTION_COUNT; i++)
    560     {
    561       if (ld_options[i].shortopt != '\0')
    562 	{
    563 	  shortopts[is] = ld_options[i].shortopt;
    564 	  ++is;
    565 	  if (ld_options[i].opt.has_arg == required_argument
    566 	      || ld_options[i].opt.has_arg == optional_argument)
    567 	    {
    568 	      shortopts[is] = ':';
    569 	      ++is;
    570 	      if (ld_options[i].opt.has_arg == optional_argument)
    571 		{
    572 		  shortopts[is] = ':';
    573 		  ++is;
    574 		}
    575 	    }
    576 	}
    577       if (ld_options[i].opt.name != NULL)
    578 	{
    579 	  if (ld_options[i].control == EXACTLY_TWO_DASHES)
    580 	    {
    581 	      really_longopts[irl] = ld_options[i].opt;
    582 	      ++irl;
    583 	    }
    584 	  else
    585 	    {
    586 	      longopts[il] = ld_options[i].opt;
    587 	      ++il;
    588 	    }
    589 	}
    590     }
    591   shortopts[is] = '\0';
    592   longopts[il].name = NULL;
    593   really_longopts[irl].name = NULL;
    594 
    595   ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts);
    596 
    597   /* The -G option is ambiguous on different platforms.  Sometimes it
    598      specifies the largest data size to put into the small data
    599      section.  Sometimes it is equivalent to --shared.  Unfortunately,
    600      the first form takes an argument, while the second does not.
    601 
    602      We need to permit the --shared form because on some platforms,
    603      such as Solaris, gcc -shared will pass -G to the linker.
    604 
    605      To permit either usage, we look through the argument list.  If we
    606      find -G not followed by a number, we change it into --shared.
    607      This will work for most normal cases.  */
    608   for (i = 1; i < argc; i++)
    609     if (strcmp (argv[i], "-G") == 0
    610 	&& (i + 1 >= argc
    611 	    || ! ISDIGIT (argv[i + 1][0])))
    612       argv[i] = (char *) "--shared";
    613 
    614   /* Because we permit long options to start with a single dash, and
    615      we have a --library option, and the -l option is conventionally
    616      used with an immediately following argument, we can have bad
    617      results if somebody tries to use -l with a library whose name
    618      happens to start with "ibrary", as in -li.  We avoid problems by
    619      simply turning -l into --library.  This means that users will
    620      have to use two dashes in order to use --library, which is OK
    621      since that's how it is documented.
    622 
    623      FIXME: It's possible that this problem can arise for other short
    624      options as well, although the user does always have the recourse
    625      of adding a space between the option and the argument.  */
    626   for (i = 1; i < argc; i++)
    627     {
    628       if (argv[i][0] == '-'
    629 	  && argv[i][1] == 'l'
    630 	  && argv[i][2] != '\0')
    631 	{
    632 	  char *n;
    633 
    634 	  n = (char *) xmalloc (strlen (argv[i]) + 20);
    635 	  sprintf (n, "--library=%s", argv[i] + 2);
    636 	  argv[i] = n;
    637 	}
    638     }
    639 
    640   last_optind = -1;
    641   while (1)
    642     {
    643       int longind;
    644       int optc;
    645       static unsigned int defsym_count;
    646 
    647       /* Using last_optind lets us avoid calling ldemul_parse_args
    648 	 multiple times on a single option, which would lead to
    649 	 confusion in the internal static variables maintained by
    650 	 getopt.  This could otherwise happen for an argument like
    651 	 -nx, in which the -n is parsed as a single option, and we
    652 	 loop around to pick up the -x.  */
    653       if (optind != last_optind)
    654 	if (ldemul_parse_args (argc, argv))
    655 	  continue;
    656 
    657       /* getopt_long_only is like getopt_long, but '-' as well as '--'
    658 	 can indicate a long option.  */
    659       opterr = 0;
    660       last_optind = optind;
    661       optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
    662       if (optc == '?')
    663 	{
    664 	  optind = last_optind;
    665 	  optc = getopt_long (argc, argv, "-", really_longopts, &longind);
    666 	}
    667 
    668       if (ldemul_handle_option (optc))
    669 	continue;
    670 
    671       if (optc == -1)
    672 	break;
    673 
    674       switch (optc)
    675 	{
    676 	case '?':
    677 	  einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
    678 	  /* Fall through.  */
    679 
    680 	default:
    681 	  einfo (_("%P%F: use the --help option for usage information\n"));
    682 
    683 	case 1:			/* File name.  */
    684 	  lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL);
    685 	  break;
    686 
    687 	case OPTION_IGNORE:
    688 	  break;
    689 	case 'a':
    690 	  /* For HP/UX compatibility.  Actually -a shared should mean
    691 	     ``use only shared libraries'' but, then, we don't
    692 	     currently support shared libraries on HP/UX anyhow.  */
    693 	  if (strcmp (optarg, "archive") == 0)
    694 	    input_flags.dynamic = FALSE;
    695 	  else if (strcmp (optarg, "shared") == 0
    696 		   || strcmp (optarg, "default") == 0)
    697 	    input_flags.dynamic = TRUE;
    698 	  else
    699 	    einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg);
    700 	  break;
    701 	case OPTION_ASSERT:
    702 	  /* FIXME: We just ignore these, but we should handle them.  */
    703 	  if (strcmp (optarg, "definitions") == 0)
    704 	    ;
    705 	  else if (strcmp (optarg, "nodefinitions") == 0)
    706 	    ;
    707 	  else if (strcmp (optarg, "nosymbolic") == 0)
    708 	    ;
    709 	  else if (strcmp (optarg, "pure-text") == 0)
    710 	    ;
    711 	  else
    712 	    einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg);
    713 	  break;
    714 	case 'A':
    715 	  ldfile_add_arch (optarg);
    716 	  break;
    717 	case 'b':
    718 	  lang_add_target (optarg);
    719 	  break;
    720 	case 'c':
    721 	  ldfile_open_command_file (optarg);
    722 	  parser_input = input_mri_script;
    723 	  yyparse ();
    724 	  break;
    725 	case OPTION_CALL_SHARED:
    726 	  input_flags.dynamic = TRUE;
    727 	  break;
    728 	case OPTION_NON_SHARED:
    729 	  input_flags.dynamic = FALSE;
    730 	  break;
    731 	case OPTION_CREF:
    732 	  command_line.cref = TRUE;
    733 	  link_info.notice_all = TRUE;
    734 	  break;
    735 	case 'd':
    736 	  command_line.force_common_definition = TRUE;
    737 	  break;
    738 	case OPTION_DEFSYM:
    739 	  lex_string = optarg;
    740 	  lex_redirect (optarg, "--defsym", ++defsym_count);
    741 	  parser_input = input_defsym;
    742 	  yyparse ();
    743 	  lex_string = NULL;
    744 	  break;
    745 	case OPTION_DEMANGLE:
    746 	  demangling = TRUE;
    747 	  if (optarg != NULL)
    748 	    {
    749 	      enum demangling_styles style;
    750 
    751 	      style = cplus_demangle_name_to_style (optarg);
    752 	      if (style == unknown_demangling)
    753 		einfo (_("%F%P: unknown demangling style `%s'\n"),
    754 		       optarg);
    755 
    756 	      cplus_demangle_set_style (style);
    757 	    }
    758 	  break;
    759 	case 'I':		/* Used on Solaris.  */
    760 	case OPTION_DYNAMIC_LINKER:
    761 	  command_line.interpreter = optarg;
    762 	  break;
    763 	case OPTION_SYSROOT:
    764 	  /* Already handled in ldmain.c.  */
    765 	  break;
    766 	case OPTION_EB:
    767 	  command_line.endian = ENDIAN_BIG;
    768 	  break;
    769 	case OPTION_EL:
    770 	  command_line.endian = ENDIAN_LITTLE;
    771 	  break;
    772 	case OPTION_EMBEDDED_RELOCS:
    773 	  command_line.embedded_relocs = TRUE;
    774 	  break;
    775 	case OPTION_EXPORT_DYNAMIC:
    776 	case 'E': /* HP/UX compatibility.  */
    777 	  link_info.export_dynamic = TRUE;
    778 	  break;
    779 	case OPTION_NO_EXPORT_DYNAMIC:
    780 	  link_info.export_dynamic = FALSE;
    781 	  break;
    782 	case 'e':
    783 	  lang_add_entry (optarg, TRUE);
    784 	  break;
    785 	case 'f':
    786 	  if (command_line.auxiliary_filters == NULL)
    787 	    {
    788 	      command_line.auxiliary_filters = (char **)
    789                   xmalloc (2 * sizeof (char *));
    790 	      command_line.auxiliary_filters[0] = optarg;
    791 	      command_line.auxiliary_filters[1] = NULL;
    792 	    }
    793 	  else
    794 	    {
    795 	      int c;
    796 	      char **p;
    797 
    798 	      c = 0;
    799 	      for (p = command_line.auxiliary_filters; *p != NULL; p++)
    800 		++c;
    801 	      command_line.auxiliary_filters = (char **)
    802                   xrealloc (command_line.auxiliary_filters,
    803 			    (c + 2) * sizeof (char *));
    804 	      command_line.auxiliary_filters[c] = optarg;
    805 	      command_line.auxiliary_filters[c + 1] = NULL;
    806 	    }
    807 	  break;
    808 	case 'F':
    809 	  command_line.filter_shlib = optarg;
    810 	  break;
    811 	case OPTION_FORCE_EXE_SUFFIX:
    812 	  command_line.force_exe_suffix = TRUE;
    813 	  break;
    814 	case 'G':
    815 	  {
    816 	    char *end;
    817 	    g_switch_value = strtoul (optarg, &end, 0);
    818 	    if (*end)
    819 	      einfo (_("%P%F: invalid number `%s'\n"), optarg);
    820 	  }
    821 	  break;
    822 	case 'g':
    823 	  /* Ignore.  */
    824 	  break;
    825 	case OPTION_GC_SECTIONS:
    826 	  link_info.gc_sections = TRUE;
    827 	  break;
    828 	case OPTION_PRINT_GC_SECTIONS:
    829 	  link_info.print_gc_sections = TRUE;
    830 	  break;
    831 	case OPTION_HELP:
    832 	  help ();
    833 	  xexit (0);
    834 	  break;
    835 	case 'L':
    836 	  ldfile_add_library_path (optarg, TRUE);
    837 	  break;
    838 	case 'l':
    839 	  lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL);
    840 	  break;
    841 	case 'M':
    842 	  config.map_filename = "-";
    843 	  break;
    844 	case 'm':
    845 	  /* Ignore.  Was handled in a pre-parse.   */
    846 	  break;
    847 	case OPTION_MAP:
    848 	  config.map_filename = optarg;
    849 	  break;
    850 	case 'N':
    851 	  config.text_read_only = FALSE;
    852 	  config.magic_demand_paged = FALSE;
    853 	  input_flags.dynamic = FALSE;
    854 	  break;
    855 	case OPTION_NO_OMAGIC:
    856 	  config.text_read_only = TRUE;
    857 	  config.magic_demand_paged = TRUE;
    858 	  /* NB/ Does not set input_flags.dynamic to TRUE.
    859 	     Use --call-shared or -Bdynamic for this.  */
    860 	  break;
    861 	case 'n':
    862 	  config.magic_demand_paged = FALSE;
    863 	  input_flags.dynamic = FALSE;
    864 	  break;
    865 	case OPTION_NO_DEFINE_COMMON:
    866 	  command_line.inhibit_common_definition = TRUE;
    867 	  break;
    868 	case OPTION_NO_DEMANGLE:
    869 	  demangling = FALSE;
    870 	  break;
    871 	case OPTION_NO_GC_SECTIONS:
    872 	  link_info.gc_sections = FALSE;
    873 	  break;
    874 	case OPTION_NO_PRINT_GC_SECTIONS:
    875 	  link_info.print_gc_sections = FALSE;
    876 	  break;
    877 	case OPTION_NO_KEEP_MEMORY:
    878 	  link_info.keep_memory = FALSE;
    879 	  break;
    880 	case OPTION_NO_UNDEFINED:
    881 	  link_info.unresolved_syms_in_objects
    882 	    = how_to_report_unresolved_symbols;
    883 	  break;
    884 	case OPTION_ALLOW_SHLIB_UNDEFINED:
    885 	  link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
    886 	  break;
    887 	case OPTION_NO_ALLOW_SHLIB_UNDEFINED:
    888 	  link_info.unresolved_syms_in_shared_libs
    889 	    = how_to_report_unresolved_symbols;
    890 	  break;
    891 	case OPTION_UNRESOLVED_SYMBOLS:
    892 	  if (strcmp (optarg, "ignore-all") == 0)
    893 	    {
    894 	      link_info.unresolved_syms_in_objects = RM_IGNORE;
    895 	      link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
    896 	    }
    897 	  else if (strcmp (optarg, "report-all") == 0)
    898 	    {
    899 	      link_info.unresolved_syms_in_objects
    900 		= how_to_report_unresolved_symbols;
    901 	      link_info.unresolved_syms_in_shared_libs
    902 		= how_to_report_unresolved_symbols;
    903 	    }
    904 	  else if (strcmp (optarg, "ignore-in-object-files") == 0)
    905 	    {
    906 	      link_info.unresolved_syms_in_objects = RM_IGNORE;
    907 	      link_info.unresolved_syms_in_shared_libs
    908 		= how_to_report_unresolved_symbols;
    909 	    }
    910       	  else if (strcmp (optarg, "ignore-in-shared-libs") == 0)
    911 	    {
    912 	      link_info.unresolved_syms_in_objects
    913 		= how_to_report_unresolved_symbols;
    914 	      link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
    915 	    }
    916 	  else
    917 	    einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg);
    918 	  break;
    919 	case OPTION_WARN_UNRESOLVED_SYMBOLS:
    920 	  how_to_report_unresolved_symbols = RM_GENERATE_WARNING;
    921 	  if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR)
    922 	    link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING;
    923 	  if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR)
    924 	    link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING;
    925 	  break;
    926 
    927 	case OPTION_ERROR_UNRESOLVED_SYMBOLS:
    928 	  how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
    929 	  if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING)
    930 	    link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
    931 	  if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING)
    932 	    link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
    933 	  break;
    934 	case OPTION_ALLOW_MULTIPLE_DEFINITION:
    935 	  link_info.allow_multiple_definition = TRUE;
    936 	  break;
    937 	case OPTION_NO_UNDEFINED_VERSION:
    938 	  link_info.allow_undefined_version = FALSE;
    939 	  break;
    940 	case OPTION_DEFAULT_SYMVER:
    941 	  link_info.create_default_symver = TRUE;
    942 	  break;
    943 	case OPTION_DEFAULT_IMPORTED_SYMVER:
    944 	  link_info.default_imported_symver = TRUE;
    945 	  break;
    946 	case OPTION_NO_WARN_MISMATCH:
    947 	  command_line.warn_mismatch = FALSE;
    948 	  break;
    949 	case OPTION_NO_WARN_SEARCH_MISMATCH:
    950 	  command_line.warn_search_mismatch = FALSE;
    951 	  break;
    952 	case OPTION_NOINHIBIT_EXEC:
    953 	  force_make_executable = TRUE;
    954 	  break;
    955 	case OPTION_NOSTDLIB:
    956 	  config.only_cmd_line_lib_dirs = TRUE;
    957 	  break;
    958 	case OPTION_NO_WHOLE_ARCHIVE:
    959 	  input_flags.whole_archive = FALSE;
    960 	  break;
    961 	case 'O':
    962 	  /* FIXME "-O<non-digits> <value>" used to set the address of
    963 	     section <non-digits>.  Was this for compatibility with
    964 	     something, or can we create a new option to do that
    965 	     (with a syntax similar to -defsym)?
    966 	     getopt can't handle two args to an option without kludges.  */
    967 
    968 	  /* Enable optimizations of output files.  */
    969 	  link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE;
    970 	  break;
    971 	case 'o':
    972 	  lang_add_output (optarg, 0);
    973 	  break;
    974 	case OPTION_OFORMAT:
    975 	  lang_add_output_format (optarg, NULL, NULL, 0);
    976 	  break;
    977 	case OPTION_PRINT_SYSROOT:
    978 	  if (*ld_sysroot)
    979 	    puts (ld_sysroot);
    980 	  xexit (0);
    981 	  break;
    982 	case OPTION_PRINT_OUTPUT_FORMAT:
    983 	  command_line.print_output_format = TRUE;
    984 	  break;
    985 #ifdef ENABLE_PLUGINS
    986 	case OPTION_PLUGIN:
    987 	  plugin_opt_plugin (optarg);
    988 	  break;
    989 	case OPTION_PLUGIN_OPT:
    990 	  if (plugin_opt_plugin_arg (optarg))
    991 	    einfo(_("%P%F: bad -plugin-opt option\n"));
    992 	  break;
    993 #endif /* ENABLE_PLUGINS */
    994 	case 'q':
    995 	  link_info.emitrelocations = TRUE;
    996 	  break;
    997 	case 'i':
    998 	case 'r':
    999 	  if (optind == last_optind)
   1000 	    /* This can happen if the user put "-rpath,a" on the command
   1001 	       line.  (Or something similar.  The comma is important).
   1002 	       Getopt becomes confused and thinks that this is a -r option
   1003 	       but it cannot parse the text after the -r so it refuses to
   1004 	       increment the optind counter.  Detect this case and issue
   1005 	       an error message here.  We cannot just make this a warning,
   1006 	       increment optind, and continue because getopt is too confused
   1007 	       and will seg-fault the next time around.  */
   1008 	    einfo(_("%P%F: bad -rpath option\n"));
   1009 
   1010 	  link_info.relocatable = TRUE;
   1011 	  config.build_constructors = FALSE;
   1012 	  config.magic_demand_paged = FALSE;
   1013 	  config.text_read_only = FALSE;
   1014 	  input_flags.dynamic = FALSE;
   1015 	  break;
   1016 	case 'R':
   1017 	  /* The GNU linker traditionally uses -R to mean to include
   1018 	     only the symbols from a file.  The Solaris linker uses -R
   1019 	     to set the path used by the runtime linker to find
   1020 	     libraries.  This is the GNU linker -rpath argument.  We
   1021 	     try to support both simultaneously by checking the file
   1022 	     named.  If it is a directory, rather than a regular file,
   1023 	     we assume -rpath was meant.  */
   1024 	  {
   1025 	    struct stat s;
   1026 
   1027 	    if (stat (optarg, &s) >= 0
   1028 		&& ! S_ISDIR (s.st_mode))
   1029 	      {
   1030 		lang_add_input_file (optarg,
   1031 				     lang_input_file_is_symbols_only_enum,
   1032 				     NULL);
   1033 		break;
   1034 	      }
   1035 	  }
   1036 	  /* Fall through.  */
   1037 	case OPTION_RPATH:
   1038 	  if (command_line.rpath == NULL)
   1039 	    command_line.rpath = xstrdup (optarg);
   1040 	  else
   1041 	    {
   1042 	      size_t rpath_len = strlen (command_line.rpath);
   1043 	      size_t optarg_len = strlen (optarg);
   1044 	      char *buf;
   1045 	      char *cp = command_line.rpath;
   1046 
   1047 	      /* First see whether OPTARG is already in the path.  */
   1048 	      do
   1049 		{
   1050 		  if (strncmp (optarg, cp, optarg_len) == 0
   1051 		      && (cp[optarg_len] == 0
   1052 			  || cp[optarg_len] == config.rpath_separator))
   1053 		    /* We found it.  */
   1054 		    break;
   1055 
   1056 		  /* Not yet found.  */
   1057 		  cp = strchr (cp, config.rpath_separator);
   1058 		  if (cp != NULL)
   1059 		    ++cp;
   1060 		}
   1061 	      while (cp != NULL);
   1062 
   1063 	      if (cp == NULL)
   1064 		{
   1065 		  buf = (char *) xmalloc (rpath_len + optarg_len + 2);
   1066 		  sprintf (buf, "%s%c%s", command_line.rpath,
   1067 			   config.rpath_separator, optarg);
   1068 		  free (command_line.rpath);
   1069 		  command_line.rpath = buf;
   1070 		}
   1071 	    }
   1072 	  break;
   1073 	case OPTION_RPATH_LINK:
   1074 	  if (command_line.rpath_link == NULL)
   1075 	    command_line.rpath_link = xstrdup (optarg);
   1076 	  else
   1077 	    {
   1078 	      char *buf;
   1079 
   1080 	      buf = (char *) xmalloc (strlen (command_line.rpath_link)
   1081                                       + strlen (optarg)
   1082                                       + 2);
   1083 	      sprintf (buf, "%s%c%s", command_line.rpath_link,
   1084 		       config.rpath_separator, optarg);
   1085 	      free (command_line.rpath_link);
   1086 	      command_line.rpath_link = buf;
   1087 	    }
   1088 	  break;
   1089 	case OPTION_NO_RELAX:
   1090 	  DISABLE_RELAXATION;
   1091 	  break;
   1092 	case OPTION_RELAX:
   1093 	  ENABLE_RELAXATION;
   1094 	  break;
   1095 	case OPTION_RETAIN_SYMBOLS_FILE:
   1096 	  add_keepsyms_file (optarg);
   1097 	  break;
   1098 	case 'S':
   1099 	  link_info.strip = strip_debugger;
   1100 	  break;
   1101 	case 's':
   1102 	  link_info.strip = strip_all;
   1103 	  break;
   1104 	case OPTION_STRIP_DISCARDED:
   1105 	  link_info.strip_discarded = TRUE;
   1106 	  break;
   1107 	case OPTION_NO_STRIP_DISCARDED:
   1108 	  link_info.strip_discarded = FALSE;
   1109 	  break;
   1110 	case OPTION_SHARED:
   1111 	  if (config.has_shared)
   1112 	    {
   1113 	      link_info.shared = TRUE;
   1114 	      /* When creating a shared library, the default
   1115 		 behaviour is to ignore any unresolved references.  */
   1116 	      if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
   1117 		link_info.unresolved_syms_in_objects = RM_IGNORE;
   1118 	      if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
   1119 		link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
   1120 	    }
   1121 	  else
   1122 	    einfo (_("%P%F: -shared not supported\n"));
   1123 	  break;
   1124 	case OPTION_PIE:
   1125 	  if (config.has_shared)
   1126 	    {
   1127 	      link_info.shared = TRUE;
   1128 	      link_info.pie = TRUE;
   1129 	    }
   1130 	  else
   1131 	    einfo (_("%P%F: -pie not supported\n"));
   1132 	  break;
   1133 	case 'h':		/* Used on Solaris.  */
   1134 	case OPTION_SONAME:
   1135 	  if (optarg[0] == '\0' && command_line.soname
   1136 	      && command_line.soname[0])
   1137 	    einfo (_("%P: SONAME must not be empty string; keeping previous one\n"));
   1138 	  else
   1139 	    command_line.soname = optarg;
   1140 	  break;
   1141 	case OPTION_SORT_COMMON:
   1142 	  if (optarg == NULL
   1143 	      || strcmp (optarg, N_("descending")) == 0)
   1144             config.sort_common = sort_descending;
   1145           else if (strcmp (optarg, N_("ascending")) == 0)
   1146 	    config.sort_common = sort_ascending;
   1147 	  else
   1148 	    einfo (_("%P%F: invalid common section sorting option: %s\n"),
   1149 		   optarg);
   1150 	  break;
   1151 	case OPTION_SORT_SECTION:
   1152 	  if (strcmp (optarg, N_("name")) == 0)
   1153 	    sort_section = by_name;
   1154 	  else if (strcmp (optarg, N_("alignment")) == 0)
   1155 	    sort_section = by_alignment;
   1156 	  else
   1157 	    einfo (_("%P%F: invalid section sorting option: %s\n"),
   1158 		   optarg);
   1159 	  break;
   1160 	case OPTION_STATS:
   1161 	  config.stats = TRUE;
   1162 	  break;
   1163 	case OPTION_SYMBOLIC:
   1164 	  command_line.symbolic = symbolic;
   1165 	  break;
   1166 	case OPTION_SYMBOLIC_FUNCTIONS:
   1167 	  command_line.symbolic = symbolic_functions;
   1168 	  break;
   1169 	case 't':
   1170 	  trace_files = TRUE;
   1171 	  break;
   1172 	case 'T':
   1173 	  previous_script_handle = saved_script_handle;
   1174 	  ldfile_open_command_file (optarg);
   1175 	  parser_input = input_script;
   1176 	  yyparse ();
   1177 	  previous_script_handle = NULL;
   1178 	  break;
   1179 	case OPTION_DEFAULT_SCRIPT:
   1180 	  command_line.default_script = optarg;
   1181 	  break;
   1182 	case OPTION_SECTION_START:
   1183 	  {
   1184 	    char *optarg2;
   1185 	    char *sec_name;
   1186 	    int len;
   1187 
   1188 	    /* Check for <something>=<somthing>...  */
   1189 	    optarg2 = strchr (optarg, '=');
   1190 	    if (optarg2 == NULL)
   1191 	      einfo (_("%P%F: invalid argument to option"
   1192 		       " \"--section-start\"\n"));
   1193 
   1194 	    optarg2++;
   1195 
   1196 	    /* So far so good.  Are all the args present?  */
   1197 	    if ((*optarg == '\0') || (*optarg2 == '\0'))
   1198 	      einfo (_("%P%F: missing argument(s) to option"
   1199 		       " \"--section-start\"\n"));
   1200 
   1201 	    /* We must copy the section name as set_section_start
   1202 	       doesn't do it for us.  */
   1203 	    len = optarg2 - optarg;
   1204 	    sec_name = (char *) xmalloc (len);
   1205 	    memcpy (sec_name, optarg, len - 1);
   1206 	    sec_name[len - 1] = 0;
   1207 
   1208 	    /* Then set it...  */
   1209 	    set_section_start (sec_name, optarg2);
   1210 	  }
   1211 	  break;
   1212 	case OPTION_TARGET_HELP:
   1213 	  /* Mention any target specific options.  */
   1214 	  ldemul_list_emulation_options (stdout);
   1215 	  exit (0);
   1216 	case OPTION_TBSS:
   1217 	  set_segment_start (".bss", optarg);
   1218 	  break;
   1219 	case OPTION_TDATA:
   1220 	  set_segment_start (".data", optarg);
   1221 	  break;
   1222 	case OPTION_TTEXT:
   1223 	  set_segment_start (".text", optarg);
   1224 	  break;
   1225 	case OPTION_TTEXT_SEGMENT:
   1226 	  set_segment_start (".text-segment", optarg);
   1227 	  break;
   1228 	case OPTION_TRODATA_SEGMENT:
   1229 	  set_segment_start (".rodata-segment", optarg);
   1230 	  break;
   1231 	case OPTION_TLDATA_SEGMENT:
   1232 	  set_segment_start (".ldata-segment", optarg);
   1233 	  break;
   1234 	case OPTION_TRADITIONAL_FORMAT:
   1235 	  link_info.traditional_format = TRUE;
   1236 	  break;
   1237 	case OPTION_TASK_LINK:
   1238 	  link_info.task_link = TRUE;
   1239 	  /* Fall through - do an implied -r option.  */
   1240 	case OPTION_UR:
   1241 	  link_info.relocatable = TRUE;
   1242 	  config.build_constructors = TRUE;
   1243 	  config.magic_demand_paged = FALSE;
   1244 	  config.text_read_only = FALSE;
   1245 	  input_flags.dynamic = FALSE;
   1246 	  break;
   1247 	case 'u':
   1248 	  ldlang_add_undef (optarg, TRUE);
   1249 	  break;
   1250 	case OPTION_UNIQUE:
   1251 	  if (optarg != NULL)
   1252 	    lang_add_unique (optarg);
   1253 	  else
   1254 	    config.unique_orphan_sections = TRUE;
   1255 	  break;
   1256 	case OPTION_VERBOSE:
   1257 	  ldversion (1);
   1258 	  version_printed = TRUE;
   1259 	  verbose = TRUE;
   1260 	  overflow_cutoff_limit = -2;
   1261 	  if (optarg != NULL)
   1262 	    {
   1263 	      char *end;
   1264 	      int level ATTRIBUTE_UNUSED = strtoul (optarg, &end, 0);
   1265 	      if (*end)
   1266 		einfo (_("%P%F: invalid number `%s'\n"), optarg);
   1267 #ifdef ENABLE_PLUGINS
   1268 	      report_plugin_symbols = level > 1;
   1269 #endif /* ENABLE_PLUGINS */
   1270 	    }
   1271 	  break;
   1272 	case 'v':
   1273 	  ldversion (0);
   1274 	  version_printed = TRUE;
   1275 	  break;
   1276 	case 'V':
   1277 	  ldversion (1);
   1278 	  version_printed = TRUE;
   1279 	  break;
   1280 	case OPTION_VERSION:
   1281 	  ldversion (2);
   1282 	  xexit (0);
   1283 	  break;
   1284 	case OPTION_VERSION_SCRIPT:
   1285 	  /* This option indicates a small script that only specifies
   1286 	     version information.  Read it, but don't assume that
   1287 	     we've seen a linker script.  */
   1288 	  {
   1289 	    FILE *hold_script_handle;
   1290 
   1291 	    hold_script_handle = saved_script_handle;
   1292 	    ldfile_open_command_file (optarg);
   1293 	    saved_script_handle = hold_script_handle;
   1294 	    parser_input = input_version_script;
   1295 	    yyparse ();
   1296 	  }
   1297 	  break;
   1298 	case OPTION_VERSION_EXPORTS_SECTION:
   1299 	  /* This option records a version symbol to be applied to the
   1300 	     symbols listed for export to be found in the object files
   1301 	     .exports sections.  */
   1302 	  command_line.version_exports_section = optarg;
   1303 	  break;
   1304 	case OPTION_DYNAMIC_LIST_DATA:
   1305 	  command_line.dynamic_list = dynamic_list_data;
   1306 	  if (command_line.symbolic == symbolic)
   1307 	    command_line.symbolic = symbolic_unset;
   1308 	  break;
   1309 	case OPTION_DYNAMIC_LIST_CPP_TYPEINFO:
   1310 	  lang_append_dynamic_list_cpp_typeinfo ();
   1311 	  if (command_line.dynamic_list != dynamic_list_data)
   1312 	    command_line.dynamic_list = dynamic_list;
   1313 	  if (command_line.symbolic == symbolic)
   1314 	    command_line.symbolic = symbolic_unset;
   1315 	  break;
   1316 	case OPTION_DYNAMIC_LIST_CPP_NEW:
   1317 	  lang_append_dynamic_list_cpp_new ();
   1318 	  if (command_line.dynamic_list != dynamic_list_data)
   1319 	    command_line.dynamic_list = dynamic_list;
   1320 	  if (command_line.symbolic == symbolic)
   1321 	    command_line.symbolic = symbolic_unset;
   1322 	  break;
   1323 	case OPTION_DYNAMIC_LIST:
   1324 	  /* This option indicates a small script that only specifies
   1325 	     a dynamic list.  Read it, but don't assume that we've
   1326 	     seen a linker script.  */
   1327 	  {
   1328 	    FILE *hold_script_handle;
   1329 
   1330 	    hold_script_handle = saved_script_handle;
   1331 	    ldfile_open_command_file (optarg);
   1332 	    saved_script_handle = hold_script_handle;
   1333 	    parser_input = input_dynamic_list;
   1334 	    yyparse ();
   1335 	  }
   1336 	  if (command_line.dynamic_list != dynamic_list_data)
   1337 	    command_line.dynamic_list = dynamic_list;
   1338 	  if (command_line.symbolic == symbolic)
   1339 	    command_line.symbolic = symbolic_unset;
   1340 	  break;
   1341 	case OPTION_WARN_COMMON:
   1342 	  config.warn_common = TRUE;
   1343 	  break;
   1344 	case OPTION_WARN_CONSTRUCTORS:
   1345 	  config.warn_constructors = TRUE;
   1346 	  break;
   1347 	case OPTION_WARN_FATAL:
   1348 	  config.fatal_warnings = TRUE;
   1349 	  break;
   1350 	case OPTION_NO_WARN_FATAL:
   1351 	  config.fatal_warnings = FALSE;
   1352 	  break;
   1353 	case OPTION_WARN_MULTIPLE_GP:
   1354 	  config.warn_multiple_gp = TRUE;
   1355 	  break;
   1356 	case OPTION_WARN_ONCE:
   1357 	  config.warn_once = TRUE;
   1358 	  break;
   1359 	case OPTION_WARN_SECTION_ALIGN:
   1360 	  config.warn_section_align = TRUE;
   1361 	  break;
   1362 	case OPTION_WARN_SHARED_TEXTREL:
   1363 	  link_info.warn_shared_textrel = TRUE;
   1364 	  break;
   1365 	case OPTION_WARN_ALTERNATE_EM:
   1366 	  link_info.warn_alternate_em = TRUE;
   1367 	  break;
   1368 	case OPTION_WHOLE_ARCHIVE:
   1369 	  input_flags.whole_archive = TRUE;
   1370 	  break;
   1371 	case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC:
   1372 	  input_flags.add_DT_NEEDED_for_dynamic = TRUE;
   1373 	  break;
   1374 	case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC:
   1375 	  input_flags.add_DT_NEEDED_for_dynamic = FALSE;
   1376 	  break;
   1377 	case OPTION_ADD_DT_NEEDED_FOR_REGULAR:
   1378 	  input_flags.add_DT_NEEDED_for_regular = TRUE;
   1379 	  break;
   1380 	case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR:
   1381 	  input_flags.add_DT_NEEDED_for_regular = FALSE;
   1382 	  break;
   1383 	case OPTION_WRAP:
   1384 	  add_wrap (optarg);
   1385 	  break;
   1386 	case OPTION_IGNORE_UNRESOLVED_SYMBOL:
   1387 	  add_ignoresym (&link_info, optarg);
   1388 	  break;
   1389 	case OPTION_DISCARD_NONE:
   1390 	  link_info.discard = discard_none;
   1391 	  break;
   1392 	case 'X':
   1393 	  link_info.discard = discard_l;
   1394 	  break;
   1395 	case 'x':
   1396 	  link_info.discard = discard_all;
   1397 	  break;
   1398 	case 'Y':
   1399 	  if (CONST_STRNEQ (optarg, "P,"))
   1400 	    optarg += 2;
   1401 	  if (default_dirlist != NULL)
   1402 	    free (default_dirlist);
   1403 	  default_dirlist = xstrdup (optarg);
   1404 	  break;
   1405 	case 'y':
   1406 	  add_ysym (optarg);
   1407 	  break;
   1408 	case OPTION_SPARE_DYNAMIC_TAGS:
   1409 	  link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0);
   1410 	  break;
   1411 	case OPTION_SPLIT_BY_RELOC:
   1412 	  if (optarg != NULL)
   1413 	    config.split_by_reloc = strtoul (optarg, NULL, 0);
   1414 	  else
   1415 	    config.split_by_reloc = 32768;
   1416 	  break;
   1417 	case OPTION_SPLIT_BY_FILE:
   1418 	  if (optarg != NULL)
   1419 	    config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
   1420 	  else
   1421 	    config.split_by_file = 1;
   1422 	  break;
   1423 	case OPTION_CHECK_SECTIONS:
   1424 	  command_line.check_section_addresses = 1;
   1425 	  break;
   1426 	case OPTION_NO_CHECK_SECTIONS:
   1427 	  command_line.check_section_addresses = 0;
   1428 	  break;
   1429 	case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH:
   1430 	  command_line.accept_unknown_input_arch = TRUE;
   1431 	  break;
   1432 	case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH:
   1433 	  command_line.accept_unknown_input_arch = FALSE;
   1434 	  break;
   1435 	case '(':
   1436 	  lang_enter_group ();
   1437 	  ingroup++;
   1438 	  break;
   1439 	case ')':
   1440 	  if (! ingroup)
   1441 	    einfo (_("%P%F: group ended before it began (--help for usage)\n"));
   1442 
   1443 	  lang_leave_group ();
   1444 	  ingroup--;
   1445 	  break;
   1446 
   1447 	case OPTION_INIT:
   1448 	  link_info.init_function = optarg;
   1449 	  break;
   1450 
   1451 	case OPTION_FINI:
   1452 	  link_info.fini_function = optarg;
   1453 	  break;
   1454 
   1455 	case OPTION_REDUCE_MEMORY_OVERHEADS:
   1456 	  link_info.reduce_memory_overheads = TRUE;
   1457 	  if (config.hash_table_size == 0)
   1458 	    config.hash_table_size = 1021;
   1459 	  break;
   1460 
   1461         case OPTION_HASH_SIZE:
   1462 	  {
   1463 	    bfd_size_type new_size;
   1464 
   1465             new_size = strtoul (optarg, NULL, 0);
   1466             if (new_size)
   1467               config.hash_table_size = new_size;
   1468             else
   1469               einfo (_("%P%X: --hash-size needs a numeric argument\n"));
   1470           }
   1471           break;
   1472 
   1473 	case OPTION_PUSH_STATE:
   1474 	  input_flags.pushed = xmemdup (&input_flags,
   1475 					sizeof (input_flags),
   1476 					sizeof (input_flags));
   1477 	  break;
   1478 
   1479 	case OPTION_POP_STATE:
   1480 	  if (input_flags.pushed == NULL)
   1481 	    einfo (_("%P%F: no state pushed before popping\n"));
   1482 	  else
   1483 	    {
   1484 	      struct lang_input_statement_flags *oldp = input_flags.pushed;
   1485 	      memcpy (&input_flags, oldp, sizeof (input_flags));
   1486 	      free (oldp);
   1487 	    }
   1488 	  break;
   1489 
   1490 	case OPTION_WARN_POISON_SYSTEM_DIRECTORIES:
   1491 	  command_line.warn_poison_system_directories = TRUE;
   1492 	  break;
   1493 
   1494 	case OPTION_NO_WARN_POISON_SYSTEM_DIRECTORIES:
   1495 	  command_line.warn_poison_system_directories = FALSE;
   1496 	  break;
   1497 
   1498 	case OPTION_ERROR_POISON_SYSTEM_DIRECTORIES:
   1499 	  command_line.error_poison_system_directories = TRUE;
   1500 	  break;
   1501 	}
   1502     }
   1503 
   1504   if (command_line.soname && command_line.soname[0] == '\0')
   1505     {
   1506       einfo (_("%P: SONAME must not be empty string; ignored\n"));
   1507       command_line.soname = NULL;
   1508     }
   1509 
   1510   while (ingroup)
   1511     {
   1512       lang_leave_group ();
   1513       ingroup--;
   1514     }
   1515 
   1516   if (default_dirlist != NULL)
   1517     {
   1518       set_default_dirlist (default_dirlist);
   1519       free (default_dirlist);
   1520     }
   1521 
   1522   if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
   1523     /* FIXME: Should we allow emulations a chance to set this ?  */
   1524     link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
   1525 
   1526   if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
   1527     /* FIXME: Should we allow emulations a chance to set this ?  */
   1528     link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
   1529 
   1530   if (link_info.relocatable)
   1531     {
   1532       if (command_line.check_section_addresses < 0)
   1533 	command_line.check_section_addresses = 0;
   1534       if (link_info.shared)
   1535 	einfo (_("%P%F: -r and -shared may not be used together\n"));
   1536     }
   1537 
   1538   /* We may have -Bsymbolic, -Bsymbolic-functions, --dynamic-list-data,
   1539      --dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo and
   1540      --dynamic-list FILE.  -Bsymbolic and -Bsymbolic-functions are
   1541      for shared libraries.  -Bsymbolic overrides all others and vice
   1542      versa.  */
   1543   switch (command_line.symbolic)
   1544     {
   1545     case symbolic_unset:
   1546       break;
   1547     case symbolic:
   1548       /* -Bsymbolic is for shared library only.  */
   1549       if (link_info.shared)
   1550 	{
   1551 	  link_info.symbolic = TRUE;
   1552 	  /* Should we free the unused memory?  */
   1553 	  link_info.dynamic_list = NULL;
   1554 	  command_line.dynamic_list = dynamic_list_unset;
   1555 	}
   1556       break;
   1557     case symbolic_functions:
   1558       /* -Bsymbolic-functions is for shared library only.  */
   1559       if (link_info.shared)
   1560 	command_line.dynamic_list = dynamic_list_data;
   1561       break;
   1562     }
   1563 
   1564   switch (command_line.dynamic_list)
   1565     {
   1566     case dynamic_list_unset:
   1567       break;
   1568     case dynamic_list_data:
   1569       link_info.dynamic_data = TRUE;
   1570     case dynamic_list:
   1571       link_info.dynamic = TRUE;
   1572       break;
   1573     }
   1574 
   1575   if (! link_info.shared)
   1576     {
   1577       if (command_line.filter_shlib)
   1578 	einfo (_("%P%F: -F may not be used without -shared\n"));
   1579       if (command_line.auxiliary_filters)
   1580 	einfo (_("%P%F: -f may not be used without -shared\n"));
   1581     }
   1582 
   1583   if (! link_info.shared || link_info.pie)
   1584     link_info.executable = TRUE;
   1585 
   1586   /* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols).  I
   1587      don't see how else this can be handled, since in this case we
   1588      must preserve all externally visible symbols.  */
   1589   if (link_info.relocatable && link_info.strip == strip_all)
   1590     {
   1591       link_info.strip = strip_debugger;
   1592       if (link_info.discard == discard_sec_merge)
   1593 	link_info.discard = discard_all;
   1594     }
   1595 }
   1596 
   1597 /* Add the (colon-separated) elements of DIRLIST_PTR to the
   1598    library search path.  */
   1599 
   1600 static void
   1601 set_default_dirlist (char *dirlist_ptr)
   1602 {
   1603   char *p;
   1604 
   1605   while (1)
   1606     {
   1607       p = strchr (dirlist_ptr, PATH_SEPARATOR);
   1608       if (p != NULL)
   1609 	*p = '\0';
   1610       if (*dirlist_ptr != '\0')
   1611 	ldfile_add_library_path (dirlist_ptr, TRUE);
   1612       if (p == NULL)
   1613 	break;
   1614       dirlist_ptr = p + 1;
   1615     }
   1616 }
   1617 
   1618 static void
   1619 set_section_start (char *sect, char *valstr)
   1620 {
   1621   const char *end;
   1622   bfd_vma val = bfd_scan_vma (valstr, &end, 16);
   1623   if (*end)
   1624     einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
   1625   lang_section_start (sect, exp_intop (val), NULL);
   1626 }
   1627 
   1628 static void
   1629 set_segment_start (const char *section, char *valstr)
   1630 {
   1631   const char *name;
   1632   const char *end;
   1633   segment_type *seg;
   1634 
   1635   bfd_vma val = bfd_scan_vma (valstr, &end, 16);
   1636   if (*end)
   1637     einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
   1638   /* If we already have an entry for this segment, update the existing
   1639      value.  */
   1640   name = section + 1;
   1641   for (seg = segments; seg; seg = seg->next)
   1642     if (strcmp (seg->name, name) == 0)
   1643       {
   1644 	seg->value = val;
   1645 	return;
   1646       }
   1647   /* There was no existing value so we must create a new segment
   1648      entry.  */
   1649   seg = (segment_type *) stat_alloc (sizeof (*seg));
   1650   seg->name = name;
   1651   seg->value = val;
   1652   seg->used = FALSE;
   1653   /* Add it to the linked list of segments.  */
   1654   seg->next = segments;
   1655   segments = seg;
   1656   /* Historically, -Ttext and friends set the base address of a
   1657      particular section.  For backwards compatibility, we still do
   1658      that.  If a SEGMENT_START directive is seen, the section address
   1659      assignment will be disabled.  */
   1660   lang_section_start (section, exp_intop (val), seg);
   1661 }
   1662 
   1663 
   1664 /* Print help messages for the options.  */
   1666 
   1667 static void
   1668 help (void)
   1669 {
   1670   unsigned i;
   1671   const char **targets, **pp;
   1672   int len;
   1673 
   1674   printf (_("Usage: %s [options] file...\n"), program_name);
   1675 
   1676   printf (_("Options:\n"));
   1677   for (i = 0; i < OPTION_COUNT; i++)
   1678     {
   1679       if (ld_options[i].doc != NULL)
   1680 	{
   1681 	  bfd_boolean comma;
   1682 	  unsigned j;
   1683 
   1684 	  printf ("  ");
   1685 
   1686 	  comma = FALSE;
   1687 	  len = 2;
   1688 
   1689 	  j = i;
   1690 	  do
   1691 	    {
   1692 	      if (ld_options[j].shortopt != '\0'
   1693 		  && ld_options[j].control != NO_HELP)
   1694 		{
   1695 		  printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
   1696 		  len += (comma ? 2 : 0) + 2;
   1697 		  if (ld_options[j].arg != NULL)
   1698 		    {
   1699 		      if (ld_options[j].opt.has_arg != optional_argument)
   1700 			{
   1701 			  printf (" ");
   1702 			  ++len;
   1703 			}
   1704 		      printf ("%s", _(ld_options[j].arg));
   1705 		      len += strlen (_(ld_options[j].arg));
   1706 		    }
   1707 		  comma = TRUE;
   1708 		}
   1709 	      ++j;
   1710 	    }
   1711 	  while (j < OPTION_COUNT && ld_options[j].doc == NULL);
   1712 
   1713 	  j = i;
   1714 	  do
   1715 	    {
   1716 	      if (ld_options[j].opt.name != NULL
   1717 		  && ld_options[j].control != NO_HELP)
   1718 		{
   1719 		  int two_dashes =
   1720 		    (ld_options[j].control == TWO_DASHES
   1721 		     || ld_options[j].control == EXACTLY_TWO_DASHES);
   1722 
   1723 		  printf ("%s-%s%s",
   1724 			  comma ? ", " : "",
   1725 			  two_dashes ? "-" : "",
   1726 			  ld_options[j].opt.name);
   1727 		  len += ((comma ? 2 : 0)
   1728 			  + 1
   1729 			  + (two_dashes ? 1 : 0)
   1730 			  + strlen (ld_options[j].opt.name));
   1731 		  if (ld_options[j].arg != NULL)
   1732 		    {
   1733 		      printf (" %s", _(ld_options[j].arg));
   1734 		      len += 1 + strlen (_(ld_options[j].arg));
   1735 		    }
   1736 		  comma = TRUE;
   1737 		}
   1738 	      ++j;
   1739 	    }
   1740 	  while (j < OPTION_COUNT && ld_options[j].doc == NULL);
   1741 
   1742 	  if (len >= 30)
   1743 	    {
   1744 	      printf ("\n");
   1745 	      len = 0;
   1746 	    }
   1747 
   1748 	  for (; len < 30; len++)
   1749 	    putchar (' ');
   1750 
   1751 	  printf ("%s\n", _(ld_options[i].doc));
   1752 	}
   1753     }
   1754   printf (_("  @FILE"));
   1755   for (len = strlen ("  @FILE"); len < 30; len++)
   1756     putchar (' ');
   1757   printf (_("Read options from FILE\n"));
   1758 
   1759   /* Note: Various tools (such as libtool) depend upon the
   1760      format of the listings below - do not change them.  */
   1761   /* xgettext:c-format */
   1762   printf (_("%s: supported targets:"), program_name);
   1763   targets = bfd_target_list ();
   1764   for (pp = targets; *pp != NULL; pp++)
   1765     printf (" %s", *pp);
   1766   free (targets);
   1767   printf ("\n");
   1768 
   1769   /* xgettext:c-format */
   1770   printf (_("%s: supported emulations: "), program_name);
   1771   ldemul_list_emulations (stdout);
   1772   printf ("\n");
   1773 
   1774   /* xgettext:c-format */
   1775   printf (_("%s: emulation specific options:\n"), program_name);
   1776   ldemul_list_emulation_options (stdout);
   1777   printf ("\n");
   1778 
   1779   if (REPORT_BUGS_TO[0])
   1780     printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);
   1781 }
   1782