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[deliverable/binutils-gdb.git] / ld / lexsup.c
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252b5132 1/* Parse options for the GNU linker.
a2b64bed 2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
92f01d61 3 2001, 2002, 2003, 2004, 2005, 2006, 2007
252b5132
RH		 4 Free Software Foundation, Inc.
5
53b2a62f 6 This file is part of GLD, the Gnu Linker.
252b5132 7
53b2a62f
NC		 8 GLD is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
11 any later version.
252b5132 12
53b2a62f
NC		 13 GLD is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
252b5132 17
53b2a62f
NC		 18 You should have received a copy of the GNU General Public License
19 along with GLD; see the file COPYING. If not, write to the Free
75be928b
NC		 20 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
21 02110-1301, USA. */
252b5132 22
34875e64 23#include "config.h"
252b5132 24#include "bfd.h"
c428fa83 25#include "bfdver.h"
252b5132
RH		 26#include "sysdep.h"
27#include "libiberty.h"
28#include <stdio.h>
29#include <string.h>
3882b010 30#include "safe-ctype.h"
252b5132
RH		 31#include "getopt.h"
32#include "bfdlink.h"
33#include "ld.h"
34#include "ldmain.h"
35#include "ldmisc.h"
36#include "ldexp.h"
37#include "ldlang.h"
df2a7313 38#include <ldgram.h>
252b5132
RH		 39#include "ldlex.h"
40#include "ldfile.h"
41#include "ldver.h"
42#include "ldemul.h"
28c309a2 43#include "demangle.h"
252b5132
RH		 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
5cc18311 53/* Somewhere above, sys/stat.h got included . . . . */
252b5132
RH		 54#if !defined(S_ISDIR) && defined(S_IFDIR)
55#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
56#endif
57
1579bae1
AM		 58static void set_default_dirlist (char *);
59static void set_section_start (char *, char *);
ba916c8a 60static void set_segment_start (const char *, char *);
1579bae1 61static void help (void);
252b5132
RH		 62
63/* Non-zero if we are processing a --defsym from the command line. */
64int parsing_defsym = 0;
65
66/* Codes used for the long options with no short synonyms. 150 isn't
67 special; it's just an arbitrary non-ASCII char value. */
560e09e9
NC		 68enum option_values
69{
70 OPTION_ASSERT = 150,
71 OPTION_CALL_SHARED,
72 OPTION_CREF,
73 OPTION_DEFSYM,
74 OPTION_DEMANGLE,
75 OPTION_DYNAMIC_LINKER,
e2243057 76 OPTION_SYSROOT,
560e09e9
NC		 77 OPTION_EB,
78 OPTION_EL,
79 OPTION_EMBEDDED_RELOCS,
80 OPTION_EXPORT_DYNAMIC,
81 OPTION_HELP,
82 OPTION_IGNORE,
83 OPTION_MAP,
84 OPTION_NO_DEMANGLE,
85 OPTION_NO_KEEP_MEMORY,
86 OPTION_NO_WARN_MISMATCH,
87 OPTION_NOINHIBIT_EXEC,
88 OPTION_NON_SHARED,
89 OPTION_NO_WHOLE_ARCHIVE,
90 OPTION_OFORMAT,
91 OPTION_RELAX,
92 OPTION_RETAIN_SYMBOLS_FILE,
93 OPTION_RPATH,
94 OPTION_RPATH_LINK,
95 OPTION_SHARED,
96 OPTION_SONAME,
97 OPTION_SORT_COMMON,
bcaa7b3e 98 OPTION_SORT_SECTION,
560e09e9
NC		 99 OPTION_STATS,
100 OPTION_SYMBOLIC,
d8cf8b51 101 OPTION_SYMBOLIC_FUNCTIONS,
560e09e9
NC		 102 OPTION_TASK_LINK,
103 OPTION_TBSS,
104 OPTION_TDATA,
105 OPTION_TTEXT,
106 OPTION_TRADITIONAL_FORMAT,
107 OPTION_UR,
108 OPTION_VERBOSE,
109 OPTION_VERSION,
110 OPTION_VERSION_SCRIPT,
111 OPTION_VERSION_EXPORTS_SECTION,
55255dae 112 OPTION_DYNAMIC_LIST,
40b36307 113 OPTION_DYNAMIC_LIST_CPP_NEW,
55255dae 114 OPTION_DYNAMIC_LIST_CPP_TYPEINFO,
40b36307 115 OPTION_DYNAMIC_LIST_DATA,
560e09e9
NC		 116 OPTION_WARN_COMMON,
117 OPTION_WARN_CONSTRUCTORS,
118 OPTION_WARN_FATAL,
119 OPTION_WARN_MULTIPLE_GP,
120 OPTION_WARN_ONCE,
121 OPTION_WARN_SECTION_ALIGN,
122 OPTION_SPLIT_BY_RELOC,
123 OPTION_SPLIT_BY_FILE ,
124 OPTION_WHOLE_ARCHIVE,
e56f61be
L		 125 OPTION_ADD_NEEDED,
126 OPTION_NO_ADD_NEEDED,
4a43e768
AM		 127 OPTION_AS_NEEDED,
128 OPTION_NO_AS_NEEDED,
560e09e9
NC		 129 OPTION_WRAP,
130 OPTION_FORCE_EXE_SUFFIX,
131 OPTION_GC_SECTIONS,
132 OPTION_NO_GC_SECTIONS,
c17d87de
NC		 133 OPTION_PRINT_GC_SECTIONS,
134 OPTION_NO_PRINT_GC_SECTIONS,
2d643429 135 OPTION_HASH_SIZE,
560e09e9
NC		 136 OPTION_CHECK_SECTIONS,
137 OPTION_NO_CHECK_SECTIONS,
560e09e9
NC		 138 OPTION_NO_UNDEFINED,
139 OPTION_INIT,
140 OPTION_FINI,
141 OPTION_SECTION_START,
142 OPTION_UNIQUE,
143 OPTION_TARGET_HELP,
144 OPTION_ALLOW_SHLIB_UNDEFINED,
145 OPTION_NO_ALLOW_SHLIB_UNDEFINED,
146 OPTION_ALLOW_MULTIPLE_DEFINITION,
147 OPTION_NO_UNDEFINED_VERSION,
3e3b46e5 148 OPTION_DEFAULT_SYMVER,
fc0e6df6 149 OPTION_DEFAULT_IMPORTED_SYMVER,
560e09e9
NC		 150 OPTION_DISCARD_NONE,
151 OPTION_SPARE_DYNAMIC_TAGS,
152 OPTION_NO_DEFINE_COMMON,
153 OPTION_NOSTDLIB,
154 OPTION_NO_OMAGIC,
155 OPTION_STRIP_DISCARDED,
156 OPTION_NO_STRIP_DISCARDED,
157 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH,
158 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH,
159 OPTION_PIE,
160 OPTION_UNRESOLVED_SYMBOLS,
161 OPTION_WARN_UNRESOLVED_SYMBOLS,
35835446 162 OPTION_ERROR_UNRESOLVED_SYMBOLS,
8fdd7217 163 OPTION_WARN_SHARED_TEXTREL,
14be8564
L		 164 OPTION_REDUCE_MEMORY_OVERHEADS,
165 OPTION_DEFAULT_SCRIPT
560e09e9 166};
252b5132
RH		 167
168/* The long options. This structure is used for both the option
169 parsing and the help text. */
170
b79e8c78
NC		 171struct ld_option
172{
252b5132
RH		 173 /* The long option information. */
174 struct option opt;
175 /* The short option with the same meaning ('\0' if none). */
176 char shortopt;
177 /* The name of the argument (NULL if none). */
178 const char *arg;
179 /* The documentation string. If this is NULL, this is a synonym for
180 the previous option. */
181 const char *doc;
e47d05ad
KH		 182 enum {
183 /* Use one dash before long option name. */
184 ONE_DASH,
185 /* Use two dashes before long option name. */
186 TWO_DASHES,
e4897a32
NC		 187 /* Only accept two dashes before the long option name.
188 This is an overloading of the use of this enum, since originally it
189 was only intended to tell the --help display function how to display
190 the long option name. This feature was added in order to resolve
191 the confusion about the -omagic command line switch. Is it setting
192 the output file name to "magic" or is it setting the NMAGIC flag on
193 the output ? It has been decided that it is setting the output file
194 name, and that if you want to set the NMAGIC flag you should use -N
195 or --omagic. */
196 EXACTLY_TWO_DASHES,
e47d05ad
KH		 197 /* Don't mention this option in --help output. */
198 NO_HELP
199 } control;
252b5132
RH		 200};
201
b79e8c78
NC		 202static const struct ld_option ld_options[] =
203{
252b5132 204 { {NULL, required_argument, NULL, '\0'},
6feb9908
AM		 205 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
206 ONE_DASH },
252b5132 207 { {"architecture", required_argument, NULL, 'A'},
6feb9908 208 'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES },
252b5132 209 { {"format", required_argument, NULL, 'b'},
6feb9908
AM		 210 'b', N_("TARGET"), N_("Specify target for following input files"),
211 TWO_DASHES },
252b5132 212 { {"mri-script", required_argument, NULL, 'c'},
6feb9908 213 'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES },
252b5132 214 { {"dc", no_argument, NULL, 'd'},
6feb9908 215 'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
252b5132 216 { {"dp", no_argument, NULL, 'd'},
6feb9908 217 '\0', NULL, NULL, ONE_DASH },
252b5132 218 { {"entry", required_argument, NULL, 'e'},
6feb9908 219 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
252b5132 220 { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
6feb9908 221 'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
252b5132 222 { {"EB", no_argument, NULL, OPTION_EB},
6feb9908 223 '\0', NULL, N_("Link big-endian objects"), ONE_DASH },
252b5132 224 { {"EL", no_argument, NULL, OPTION_EL},
6feb9908 225 '\0', NULL, N_("Link little-endian objects"), ONE_DASH },
252b5132 226 { {"auxiliary", required_argument, NULL, 'f'},
6feb9908
AM		 227 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
228 TWO_DASHES },
252b5132 229 { {"filter", required_argument, NULL, 'F'},
6feb9908
AM		 230 'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
231 TWO_DASHES },
252b5132 232 { {NULL, no_argument, NULL, '\0'},
6feb9908 233 'g', NULL, N_("Ignored"), ONE_DASH },
252b5132 234 { {"gpsize", required_argument, NULL, 'G'},
6feb9908
AM		 235 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
236 TWO_DASHES },
252b5132 237 { {"soname", required_argument, NULL, OPTION_SONAME},
6feb9908 238 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
506eee22 239 { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
6feb9908
AM		 240 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
241 TWO_DASHES },
252b5132 242 { {"library", required_argument, NULL, 'l'},
6feb9908 243 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
252b5132 244 { {"library-path", required_argument, NULL, 'L'},
6feb9908
AM		 245 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
246 TWO_DASHES },
e2243057
RS		 247 { {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT},
248 '\0', NULL, N_("Override the default sysroot location"), TWO_DASHES },
252b5132 249 { {NULL, required_argument, NULL, '\0'},
6feb9908 250 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
252b5132 251 { {"print-map", no_argument, NULL, 'M'},
6feb9908 252 'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
252b5132 253 { {"nmagic", no_argument, NULL, 'n'},
6feb9908 254 'n', NULL, N_("Do not page align data"), TWO_DASHES },
252b5132 255 { {"omagic", no_argument, NULL, 'N'},
6feb9908
AM		 256 'N', NULL, N_("Do not page align data, do not make text readonly"),
257 EXACTLY_TWO_DASHES },
63fd3b82 258 { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC},
6feb9908
AM		 259 '\0', NULL, N_("Page align data, make text readonly"),
260 EXACTLY_TWO_DASHES },
252b5132 261 { {"output", required_argument, NULL, 'o'},
6feb9908 262 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
252b5132 263 { {NULL, required_argument, NULL, '\0'},
6feb9908 264 'O', NULL, N_("Optimize output file"), ONE_DASH },
252b5132 265 { {"Qy", no_argument, NULL, OPTION_IGNORE},
6feb9908 266 '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
a712da20 267 { {"emit-relocs", no_argument, NULL, 'q'},
6feb9908 268 'q', NULL, "Generate relocations in final output", TWO_DASHES },
1049f94e 269 { {"relocatable", no_argument, NULL, 'r'},
6feb9908 270 'r', NULL, N_("Generate relocatable output"), TWO_DASHES },
252b5132 271 { {NULL, no_argument, NULL, '\0'},
6feb9908 272 'i', NULL, NULL, ONE_DASH },
252b5132 273 { {"just-symbols", required_argument, NULL, 'R'},
6feb9908
AM		 274 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
275 TWO_DASHES },
252b5132 276 { {"strip-all", no_argument, NULL, 's'},
6feb9908 277 's', NULL, N_("Strip all symbols"), TWO_DASHES },
252b5132 278 { {"strip-debug", no_argument, NULL, 'S'},
6feb9908 279 'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
d5cd3933 280 { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED},
6feb9908 281 '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES },
d5cd3933 282 { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED},
6feb9908 283 '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES },
252b5132 284 { {"trace", no_argument, NULL, 't'},
6feb9908 285 't', NULL, N_("Trace file opens"), TWO_DASHES },
252b5132 286 { {"script", required_argument, NULL, 'T'},
6feb9908 287 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
14be8564
L		 288 { {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
289 '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES },
290 { {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
291 '\0', NULL, NULL, ONE_DASH },
252b5132 292 { {"undefined", required_argument, NULL, 'u'},
6feb9908
AM		 293 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
294 TWO_DASHES },
577a0623 295 { {"unique", optional_argument, NULL, OPTION_UNIQUE},
6feb9908
AM		 296 '\0', N_("[=SECTION]"),
297 N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES },
252b5132 298 { {"Ur", no_argument, NULL, OPTION_UR},
6feb9908 299 '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
252b5132 300 { {"version", no_argument, NULL, OPTION_VERSION},
6feb9908 301 'v', NULL, N_("Print version information"), TWO_DASHES },
252b5132 302 { {NULL, no_argument, NULL, '\0'},
6feb9908 303 'V', NULL, N_("Print version and emulation information"), ONE_DASH },
252b5132 304 { {"discard-all", no_argument, NULL, 'x'},
6feb9908 305 'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
252b5132 306 { {"discard-locals", no_argument, NULL, 'X'},
6feb9908 307 'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES },
f5fa8ca2 308 { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE},
6feb9908 309 '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES },
252b5132 310 { {"trace-symbol", required_argument, NULL, 'y'},
6feb9908 311 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
252b5132 312 { {NULL, required_argument, NULL, '\0'},
6feb9908
AM		 313 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
314 ONE_DASH },
252b5132 315 { {"start-group", no_argument, NULL, '('},
6feb9908 316 '(', NULL, N_("Start a group"), TWO_DASHES },
252b5132 317 { {"end-group", no_argument, NULL, ')'},
6feb9908
AM		 318 ')', NULL, N_("End a group"), TWO_DASHES },
319 { {"accept-unknown-input-arch", no_argument, NULL,
320 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH},
321 '\0', NULL,
322 N_("Accept input files whose architecture cannot be determined"),
323 TWO_DASHES },
324 { {"no-accept-unknown-input-arch", no_argument, NULL,
325 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH},
326 '\0', NULL, N_("Reject input files whose architecture is unknown"),
327 TWO_DASHES },
8fdd7217
NC		 328 { {"add-needed", no_argument, NULL, OPTION_ADD_NEEDED},
329 '\0', NULL, N_("Set DT_NEEDED tags for DT_NEEDED entries in\n"
330 "\t\t\t\tfollowing dynamic libs"), TWO_DASHES },
331 { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_NEEDED},
332 '\0', NULL, N_("Do not set DT_NEEDED tags for DT_NEEDED entries\n"
333 "\t\t\t\tin following dynamic libs"), TWO_DASHES },
334 { {"as-needed", no_argument, NULL, OPTION_AS_NEEDED},
335 '\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"),
336 TWO_DASHES },
337 { {"no-as-needed", no_argument, NULL, OPTION_NO_AS_NEEDED},
338 '\0', NULL, N_("Always set DT_NEEDED for following dynamic libs"),
339 TWO_DASHES },
252b5132 340 { {"assert", required_argument, NULL, OPTION_ASSERT},
6feb9908 341 '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH },
252b5132 342 { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
6feb9908 343 '\0', NULL, N_("Link against shared libraries"), ONE_DASH },
252b5132 344 { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
6feb9908 345 '\0', NULL, NULL, ONE_DASH },
252b5132 346 { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
6feb9908 347 '\0', NULL, NULL, ONE_DASH },
252b5132 348 { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
6feb9908 349 '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH },
252b5132 350 { {"dn", no_argument, NULL, OPTION_NON_SHARED},
6feb9908 351 '\0', NULL, NULL, ONE_DASH },
252b5132 352 { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
6feb9908 353 '\0', NULL, NULL, ONE_DASH },
252b5132 354 { {"static", no_argument, NULL, OPTION_NON_SHARED},
6feb9908 355 '\0', NULL, NULL, ONE_DASH },
252b5132 356 { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
6feb9908 357 '\0', NULL, N_("Bind global references locally"), ONE_DASH },
d8cf8b51 358 { {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS},
40b36307 359 '\0', NULL, N_("Bind global function references locally"), ONE_DASH },
252b5132 360 { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS},
6feb9908
AM		 361 '\0', NULL, N_("Check section addresses for overlaps (default)"),
362 TWO_DASHES },
252b5132 363 { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS},
6feb9908
AM		 364 '\0', NULL, N_("Do not check section addresses for overlaps"),
365 TWO_DASHES },
252b5132 366 { {"cref", no_argument, NULL, OPTION_CREF},
6feb9908 367 '\0', NULL, N_("Output cross reference table"), TWO_DASHES },
252b5132 368 { {"defsym", required_argument, NULL, OPTION_DEFSYM},
6feb9908 369 '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
28c309a2 370 { {"demangle", optional_argument, NULL, OPTION_DEMANGLE},
6feb9908
AM		 371 '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
372 TWO_DASHES },
252b5132 373 { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
6feb9908 374 '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
8fdd7217
NC		 375 { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
376 '\0', NULL, N_("Treat warnings as errors"),
377 TWO_DASHES },
3dbf70a2 378 { {"fini", required_argument, NULL, OPTION_FINI},
6feb9908 379 '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH },
252b5132 380 { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
6feb9908 381 '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
252b5132 382 { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
6feb9908
AM		 383 '\0', NULL, N_("Remove unused sections (on some targets)"),
384 TWO_DASHES },
252b5132 385 { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS},
6feb9908
AM		 386 '\0', NULL, N_("Don't remove unused sections (default)"),
387 TWO_DASHES },
c17d87de
NC		 388 { {"print-gc-sections", no_argument, NULL, OPTION_PRINT_GC_SECTIONS},
389 '\0', NULL, N_("List removed unused sections on stderr"),
390 TWO_DASHES },
391 { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS},
392 '\0', NULL, N_("Do not list removed unused sections"),
393 TWO_DASHES },
2d643429 394 { {"hash-size=<NUMBER>", required_argument, NULL, OPTION_HASH_SIZE},
6feb9908
AM		 395 '\0', NULL, N_("Set default hash table size close to <NUMBER>"),
396 TWO_DASHES },
252b5132 397 { {"help", no_argument, NULL, OPTION_HELP},
6feb9908 398 '\0', NULL, N_("Print option help"), TWO_DASHES },
3dbf70a2 399 { {"init", required_argument, NULL, OPTION_INIT},
6feb9908 400 '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH },
252b5132 401 { {"Map", required_argument, NULL, OPTION_MAP},
6feb9908 402 '\0', N_("FILE"), N_("Write a map file"), ONE_DASH },
4818e05f 403 { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON},
6feb9908 404 '\0', NULL, N_("Do not define Common storage"), TWO_DASHES },
252b5132 405 { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
6feb9908 406 '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES },
252b5132 407 { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
6feb9908 408 '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
252b5132 409 { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
6feb9908
AM		 410 '\0', NULL, N_("Do not allow unresolved references in object files"),
411 TWO_DASHES },
b79e8c78 412 { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED},
6feb9908
AM		 413 '\0', NULL, N_("Allow unresolved references in shared libaries"),
414 TWO_DASHES },
415 { {"no-allow-shlib-undefined", no_argument, NULL,
416 OPTION_NO_ALLOW_SHLIB_UNDEFINED},
417 '\0', NULL, N_("Do not allow unresolved references in shared libs"),
418 TWO_DASHES },
419 { {"allow-multiple-definition", no_argument, NULL,
420 OPTION_ALLOW_MULTIPLE_DEFINITION},
421 '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES },
31941635 422 { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION},
6feb9908 423 '\0', NULL, N_("Disallow undefined version"), TWO_DASHES },
3e3b46e5
PB		 424 { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER},
425 '\0', NULL, N_("Create default symbol version"), TWO_DASHES },
fc0e6df6
PB		 426 { {"default-imported-symver", no_argument, NULL,
427 OPTION_DEFAULT_IMPORTED_SYMVER},
428 '\0', NULL, N_("Create default symbol version for imported symbols"),
429 TWO_DASHES },
252b5132 430 { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
6feb9908 431 '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
252b5132 432 { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
6feb9908 433 '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES },
252b5132 434 { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
6feb9908
AM		 435 '\0', NULL, N_("Create an output file even if errors occur"),
436 TWO_DASHES },
252b5132 437 { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
6feb9908 438 '\0', NULL, NULL, NO_HELP },
361b220e 439 { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB},
6feb9908
AM		 440 '\0', NULL, N_("Only use library directories specified on\n"
441 "\t\t\t\tthe command line"), ONE_DASH },
252b5132 442 { {"oformat", required_argument, NULL, OPTION_OFORMAT},
6feb9908
AM		 443 '\0', N_("TARGET"), N_("Specify target of output file"),
444 EXACTLY_TWO_DASHES },
252b5132 445 { {"qmagic", no_argument, NULL, OPTION_IGNORE},
6feb9908
AM		 446 '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
447 { {"reduce-memory-overheads", no_argument, NULL,
448 OPTION_REDUCE_MEMORY_OVERHEADS},
449 '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"),
450 TWO_DASHES },
252b5132 451 { {"relax", no_argument, NULL, OPTION_RELAX},
6feb9908 452 '\0', NULL, N_("Relax branches on certain targets"), TWO_DASHES },
252b5132 453 { {"retain-symbols-file", required_argument, NULL,
6feb9908
AM		 454 OPTION_RETAIN_SYMBOLS_FILE},
455 '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES },
252b5132 456 { {"rpath", required_argument, NULL, OPTION_RPATH},
6feb9908 457 '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH },
252b5132 458 { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
6feb9908
AM		 459 '\0', N_("PATH"), N_("Set link time shared library search path"),
460 ONE_DASH },
252b5132 461 { {"shared", no_argument, NULL, OPTION_SHARED},
6feb9908 462 '\0', NULL, N_("Create a shared library"), ONE_DASH },
252b5132 463 { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */
6feb9908 464 '\0', NULL, NULL, ONE_DASH },
36af4a4e 465 { {"pie", no_argument, NULL, OPTION_PIE},
6feb9908 466 '\0', NULL, N_("Create a position independent executable"), ONE_DASH },
36af4a4e 467 { {"pic-executable", no_argument, NULL, OPTION_PIE},
6feb9908 468 '\0', NULL, NULL, TWO_DASHES },
252b5132 469 { {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
6feb9908 470 '\0', NULL, N_("Sort common symbols by size"), TWO_DASHES },
252b5132 471 { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
6feb9908 472 '\0', NULL, NULL, NO_HELP },
bcaa7b3e
L		 473 { {"sort-section", required_argument, NULL, OPTION_SORT_SECTION},
474 '\0', N_("name|alignment"),
475 N_("Sort sections by name or maximum alignment"), TWO_DASHES },
db6751f2 476 { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS},
6feb9908
AM		 477 '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
478 TWO_DASHES },
a854a4a7 479 { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE},
6feb9908
AM		 480 '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
481 TWO_DASHES },
a854a4a7 482 { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC},
6feb9908
AM		 483 '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
484 TWO_DASHES },
252b5132 485 { {"stats", no_argument, NULL, OPTION_STATS},
6feb9908 486 '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
ea20a7da 487 { {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
6feb9908 488 '\0', NULL, N_("Display target specific options"), TWO_DASHES },
252b5132 489 { {"task-link", required_argument, NULL, OPTION_TASK_LINK},
6feb9908 490 '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
252b5132 491 { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
6feb9908 492 '\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
176355da 493 { {"section-start", required_argument, NULL, OPTION_SECTION_START},
6feb9908
AM		 494 '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
495 TWO_DASHES },
252b5132 496 { {"Tbss", required_argument, NULL, OPTION_TBSS},
6feb9908 497 '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
252b5132 498 { {"Tdata", required_argument, NULL, OPTION_TDATA},
6feb9908 499 '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH },
252b5132 500 { {"Ttext", required_argument, NULL, OPTION_TTEXT},
6feb9908
AM		 501 '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH },
502 { {"unresolved-symbols=<method>", required_argument, NULL,
503 OPTION_UNRESOLVED_SYMBOLS},
504 '\0', NULL, N_("How to handle unresolved symbols. <method> is:\n"
505 "\t\t\t\tignore-all, report-all, ignore-in-object-files,\n"
506 "\t\t\t\tignore-in-shared-libs"), TWO_DASHES },
252b5132 507 { {"verbose", no_argument, NULL, OPTION_VERBOSE},
6feb9908 508 '\0', NULL, N_("Output lots of information during link"), TWO_DASHES },
252b5132 509 { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */
6feb9908 510 '\0', NULL, NULL, NO_HELP },
252b5132 511 { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
6feb9908 512 '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
252b5132
RH		 513 { {"version-exports-section", required_argument, NULL,
514 OPTION_VERSION_EXPORTS_SECTION },
6feb9908
AM		 515 '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
516 "\t\t\t\tSYMBOL as the version."), TWO_DASHES },
40b36307
L		 517 { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA},
518 '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES },
519 { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW},
520 '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES },
55255dae
L		 521 { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO},
522 '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES },
523 { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST},
524 '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES },
252b5132 525 { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
6feb9908 526 '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
252b5132 527 { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
6feb9908
AM		 528 '\0', NULL, N_("Warn if global constructors/destructors are seen"),
529 TWO_DASHES },
252b5132 530 { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
6feb9908 531 '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
252b5132 532 { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
6feb9908 533 '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
252b5132 534 { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
6feb9908
AM		 535 '\0', NULL, N_("Warn if start of section changes due to alignment"),
536 TWO_DASHES },
8fdd7217
NC		 537 { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL},
538 '\0', NULL, N_("Warn if shared object has DT_TEXTREL"),
539 TWO_DASHES },
6feb9908
AM		 540 { {"warn-unresolved-symbols", no_argument, NULL,
541 OPTION_WARN_UNRESOLVED_SYMBOLS},
560e09e9 542 '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES },
6feb9908
AM		 543 { {"error-unresolved-symbols", no_argument, NULL,
544 OPTION_ERROR_UNRESOLVED_SYMBOLS},
560e09e9 545 '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES },
252b5132 546 { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
6feb9908
AM		 547 '\0', NULL, N_("Include all objects from following archives"),
548 TWO_DASHES },
252b5132 549 { {"wrap", required_argument, NULL, OPTION_WRAP},
6feb9908 550 '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
252b5132
RH		 551};
552
e4897a32 553#define OPTION_COUNT ARRAY_SIZE (ld_options)
252b5132 554
252b5132 555void
1579bae1 556parse_args (unsigned argc, char **argv)
252b5132 557{
e4897a32
NC		 558 unsigned i;
559 int is, il, irl;
252b5132
RH		 560 int ingroup = 0;
561 char *default_dirlist = NULL;
3bcf5557
AM		 562 char *shortopts;
563 struct option *longopts;
564 struct option *really_longopts;
252b5132 565 int last_optind;
560e09e9 566 enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
252b5132 567
1579bae1
AM		 568 shortopts = xmalloc (OPTION_COUNT * 3 + 2);
569 longopts = xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1));
570 really_longopts = xmalloc (sizeof (*really_longopts) * (OPTION_COUNT + 1));
3bcf5557 571
252b5132
RH		 572 /* Starting the short option string with '-' is for programs that
573 expect options and other ARGV-elements in any order and that care about
574 the ordering of the two. We describe each non-option ARGV-element
575 as if it were the argument of an option with character code 1. */
576 shortopts[0] = '-';
577 is = 1;
578 il = 0;
e4897a32 579 irl = 0;
252b5132
RH		 580 for (i = 0; i < OPTION_COUNT; i++)
581 {
582 if (ld_options[i].shortopt != '\0')
583 {
584 shortopts[is] = ld_options[i].shortopt;
585 ++is;
586 if (ld_options[i].opt.has_arg == required_argument
587 || ld_options[i].opt.has_arg == optional_argument)
588 {
589 shortopts[is] = ':';
590 ++is;
591 if (ld_options[i].opt.has_arg == optional_argument)
592 {
593 shortopts[is] = ':';
594 ++is;
595 }
596 }
597 }
598 if (ld_options[i].opt.name != NULL)
599 {
e4897a32
NC		 600 if (ld_options[i].control == EXACTLY_TWO_DASHES)
601 {
602 really_longopts[irl] = ld_options[i].opt;
603 ++irl;
604 }
605 else
606 {
607 longopts[il] = ld_options[i].opt;
608 ++il;
609 }
252b5132
RH		 610 }
611 }
612 shortopts[is] = '\0';
613 longopts[il].name = NULL;
e4897a32 614 really_longopts[irl].name = NULL;
252b5132 615
3bcf5557
AM		 616 ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts);
617
252b5132
RH		 618 /* The -G option is ambiguous on different platforms. Sometimes it
619 specifies the largest data size to put into the small data
620 section. Sometimes it is equivalent to --shared. Unfortunately,
621 the first form takes an argument, while the second does not.
622
623 We need to permit the --shared form because on some platforms,
624 such as Solaris, gcc -shared will pass -G to the linker.
625
626 To permit either usage, we look through the argument list. If we
627 find -G not followed by a number, we change it into --shared.
628 This will work for most normal cases. */
629 for (i = 1; i < argc; i++)
630 if (strcmp (argv[i], "-G") == 0
631 && (i + 1 >= argc
3882b010 632 || ! ISDIGIT (argv[i + 1][0])))
252b5132
RH		 633 argv[i] = (char *) "--shared";
634
635 /* Because we permit long options to start with a single dash, and
636 we have a --library option, and the -l option is conventionally
637 used with an immediately following argument, we can have bad
638 results if somebody tries to use -l with a library whose name
639 happens to start with "ibrary", as in -li. We avoid problems by
640 simply turning -l into --library. This means that users will
641 have to use two dashes in order to use --library, which is OK
642 since that's how it is documented.
643
644 FIXME: It's possible that this problem can arise for other short
645 options as well, although the user does always have the recourse
646 of adding a space between the option and the argument. */
647 for (i = 1; i < argc; i++)
648 {
649 if (argv[i][0] == '-'
650 && argv[i][1] == 'l'
651 && argv[i][2] != '\0')
652 {
653 char *n;
654
1579bae1 655 n = xmalloc (strlen (argv[i]) + 20);
252b5132
RH		 656 sprintf (n, "--library=%s", argv[i] + 2);
657 argv[i] = n;
658 }
659 }
660
661 last_optind = -1;
662 while (1)
663 {
89894c62 664 int longind;
252b5132
RH		 665 int optc;
666
667 /* Using last_optind lets us avoid calling ldemul_parse_args
668 multiple times on a single option, which would lead to
669 confusion in the internal static variables maintained by
670 getopt. This could otherwise happen for an argument like
671 -nx, in which the -n is parsed as a single option, and we
672 loop around to pick up the -x. */
673 if (optind != last_optind)
89894c62
AM		 674 if (ldemul_parse_args (argc, argv))
675 continue;
252b5132
RH		 676
677 /* getopt_long_only is like getopt_long, but '-' as well as '--'
678 can indicate a long option. */
0fc3347a 679 opterr = 0;
89894c62 680 last_optind = optind;
252b5132 681 optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
0fc3347a
NC		 682 if (optc == '?')
683 {
89894c62
AM		 684 optind = last_optind;
685 optc = getopt_long (argc, argv, "-", really_longopts, &longind);
0fc3347a 686 }
b7ed8fad 687
3bcf5557
AM		 688 if (ldemul_handle_option (optc))
689 continue;
690
252b5132
RH		 691 if (optc == -1)
692 break;
0fc3347a 693
252b5132
RH		 694 switch (optc)
695 {
0fc3347a 696 case '?':
89894c62 697 einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
058a363d
BE		 698 /* Fall through. */
699
252b5132 700 default:
210a7bd1
NC		 701 einfo (_("%P%F: use the --help option for usage information\n"));
702
252b5132 703 case 1: /* File name. */
1579bae1 704 lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL);
252b5132
RH		 705 break;
706
707 case OPTION_IGNORE:
708 break;
709 case 'a':
710 /* For HP/UX compatibility. Actually -a shared should mean
1579bae1
AM		 711 ``use only shared libraries'' but, then, we don't
712 currently support shared libraries on HP/UX anyhow. */
252b5132 713 if (strcmp (optarg, "archive") == 0)
b34976b6 714 config.dynamic_link = FALSE;
252b5132
RH		 715 else if (strcmp (optarg, "shared") == 0
716 || strcmp (optarg, "default") == 0)
b34976b6 717 config.dynamic_link = TRUE;
252b5132
RH		 718 else
719 einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg);
720 break;
721 case OPTION_ASSERT:
722 /* FIXME: We just ignore these, but we should handle them. */
723 if (strcmp (optarg, "definitions") == 0)
724 ;
725 else if (strcmp (optarg, "nodefinitions") == 0)
726 ;
727 else if (strcmp (optarg, "nosymbolic") == 0)
728 ;
729 else if (strcmp (optarg, "pure-text") == 0)
730 ;
731 else
732 einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg);
733 break;
734 case 'A':
735 ldfile_add_arch (optarg);
736 break;
737 case 'b':
738 lang_add_target (optarg);
739 break;
740 case 'c':
741 ldfile_open_command_file (optarg);
742 parser_input = input_mri_script;
743 yyparse ();
744 break;
745 case OPTION_CALL_SHARED:
b34976b6 746 config.dynamic_link = TRUE;
252b5132
RH		 747 break;
748 case OPTION_NON_SHARED:
b34976b6 749 config.dynamic_link = FALSE;
252b5132
RH		 750 break;
751 case OPTION_CREF:
b34976b6
AM		 752 command_line.cref = TRUE;
753 link_info.notice_all = TRUE;
252b5132
RH		 754 break;
755 case 'd':
b34976b6 756 command_line.force_common_definition = TRUE;
252b5132
RH		 757 break;
758 case OPTION_DEFSYM:
759 lex_string = optarg;
760 lex_redirect (optarg);
761 parser_input = input_defsym;
762 parsing_defsym = 1;
763 yyparse ();
764 parsing_defsym = 0;
765 lex_string = NULL;
766 break;
767 case OPTION_DEMANGLE:
b34976b6 768 demangling = TRUE;
28c309a2
NC		 769 if (optarg != NULL)
770 {
771 enum demangling_styles style;
5cc18311 772
28c309a2 773 style = cplus_demangle_name_to_style (optarg);
5cc18311 774 if (style == unknown_demangling)
28c309a2
NC		 775 einfo (_("%F%P: unknown demangling style `%s'"),
776 optarg);
5cc18311 777
28c309a2 778 cplus_demangle_set_style (style);
e47d05ad 779 }
252b5132 780 break;
506eee22 781 case 'I': /* Used on Solaris. */
252b5132
RH		 782 case OPTION_DYNAMIC_LINKER:
783 command_line.interpreter = optarg;
784 break;
e2243057
RS		 785 case OPTION_SYSROOT:
786 /* Already handled in ldmain.c. */
787 break;
252b5132
RH		 788 case OPTION_EB:
789 command_line.endian = ENDIAN_BIG;
790 break;
791 case OPTION_EL:
792 command_line.endian = ENDIAN_LITTLE;
793 break;
794 case OPTION_EMBEDDED_RELOCS:
b34976b6 795 command_line.embedded_relocs = TRUE;
252b5132
RH		 796 break;
797 case OPTION_EXPORT_DYNAMIC:
798 case 'E': /* HP/UX compatibility. */
b34976b6 799 link_info.export_dynamic = TRUE;
252b5132
RH		 800 break;
801 case 'e':
b34976b6 802 lang_add_entry (optarg, TRUE);
252b5132
RH		 803 break;
804 case 'f':
805 if (command_line.auxiliary_filters == NULL)
806 {
1579bae1 807 command_line.auxiliary_filters = xmalloc (2 * sizeof (char *));
252b5132
RH		 808 command_line.auxiliary_filters[0] = optarg;
809 command_line.auxiliary_filters[1] = NULL;
810 }
811 else
812 {
813 int c;
814 char **p;
815
816 c = 0;
817 for (p = command_line.auxiliary_filters; *p != NULL; p++)
818 ++c;
1579bae1
AM		 819 command_line.auxiliary_filters
820 = xrealloc (command_line.auxiliary_filters,
821 (c + 2) * sizeof (char *));
252b5132
RH		 822 command_line.auxiliary_filters[c] = optarg;
823 command_line.auxiliary_filters[c + 1] = NULL;
824 }
825 break;
826 case 'F':
827 command_line.filter_shlib = optarg;
828 break;
829 case OPTION_FORCE_EXE_SUFFIX:
b34976b6 830 command_line.force_exe_suffix = TRUE;
252b5132
RH		 831 break;
832 case 'G':
833 {
834 char *end;
835 g_switch_value = strtoul (optarg, &end, 0);
836 if (*end)
837 einfo (_("%P%F: invalid number `%s'\n"), optarg);
838 }
839 break;
840 case 'g':
841 /* Ignore. */
842 break;
843 case OPTION_GC_SECTIONS:
57316bff 844 link_info.gc_sections = TRUE;
252b5132 845 break;
c17d87de
NC		 846 case OPTION_PRINT_GC_SECTIONS:
847 link_info.print_gc_sections = TRUE;
848 break;
252b5132
RH		 849 case OPTION_HELP:
850 help ();
851 xexit (0);
852 break;
853 case 'L':
b34976b6 854 ldfile_add_library_path (optarg, TRUE);
252b5132
RH		 855 break;
856 case 'l':
1579bae1 857 lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL);
252b5132
RH		 858 break;
859 case 'M':
860 config.map_filename = "-";
861 break;
862 case 'm':
863 /* Ignore. Was handled in a pre-parse. */
864 break;
865 case OPTION_MAP:
866 config.map_filename = optarg;
867 break;
868 case 'N':
b34976b6
AM		 869 config.text_read_only = FALSE;
870 config.magic_demand_paged = FALSE;
871 config.dynamic_link = FALSE;
252b5132 872 break;
63fd3b82 873 case OPTION_NO_OMAGIC:
b34976b6
AM		 874 config.text_read_only = TRUE;
875 config.magic_demand_paged = TRUE;
876 /* NB/ Does not set dynamic_link to TRUE.
63fd3b82
NC		 877 Use --call-shared or -Bdynamic for this. */
878 break;
252b5132 879 case 'n':
b34976b6
AM		 880 config.magic_demand_paged = FALSE;
881 config.dynamic_link = FALSE;
252b5132 882 break;
4818e05f 883 case OPTION_NO_DEFINE_COMMON:
b34976b6 884 command_line.inhibit_common_definition = TRUE;
4818e05f 885 break;
252b5132 886 case OPTION_NO_DEMANGLE:
b34976b6 887 demangling = FALSE;
252b5132
RH		 888 break;
889 case OPTION_NO_GC_SECTIONS:
57316bff 890 link_info.gc_sections = FALSE;
252b5132 891 break;
c17d87de
NC		 892 case OPTION_NO_PRINT_GC_SECTIONS:
893 link_info.print_gc_sections = FALSE;
894 break;
252b5132 895 case OPTION_NO_KEEP_MEMORY:
b34976b6 896 link_info.keep_memory = FALSE;
252b5132
RH		 897 break;
898 case OPTION_NO_UNDEFINED:
6feb9908
AM		 899 link_info.unresolved_syms_in_objects
900 = how_to_report_unresolved_symbols;
252b5132 901 break;
b79e8c78 902 case OPTION_ALLOW_SHLIB_UNDEFINED:
560e09e9 903 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
b79e8c78 904 break;
ae9a127f 905 case OPTION_NO_ALLOW_SHLIB_UNDEFINED:
6feb9908
AM		 906 link_info.unresolved_syms_in_shared_libs
907 = how_to_report_unresolved_symbols;
ae9a127f 908 break;
560e09e9
NC		 909 case OPTION_UNRESOLVED_SYMBOLS:
910 if (strcmp (optarg, "ignore-all") == 0)
911 {
912 link_info.unresolved_syms_in_objects = RM_IGNORE;
913 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
914 }
915 else if (strcmp (optarg, "report-all") == 0)
916 {
6feb9908
AM		 917 link_info.unresolved_syms_in_objects
918 = how_to_report_unresolved_symbols;
919 link_info.unresolved_syms_in_shared_libs
920 = how_to_report_unresolved_symbols;
560e09e9
NC		 921 }
922 else if (strcmp (optarg, "ignore-in-object-files") == 0)
923 {
924 link_info.unresolved_syms_in_objects = RM_IGNORE;
6feb9908
AM		 925 link_info.unresolved_syms_in_shared_libs
926 = how_to_report_unresolved_symbols;
560e09e9
NC		 927 }
928 else if (strcmp (optarg, "ignore-in-shared-libs") == 0)
929 {
6feb9908
AM		 930 link_info.unresolved_syms_in_objects
931 = how_to_report_unresolved_symbols;
560e09e9
NC		 932 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
933 }
934 else
935 einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg);
936 break;
937 case OPTION_WARN_UNRESOLVED_SYMBOLS:
938 how_to_report_unresolved_symbols = RM_GENERATE_WARNING;
939 if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR)
940 link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING;
941 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR)
942 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING;
943 break;
6feb9908 944
560e09e9
NC		 945 case OPTION_ERROR_UNRESOLVED_SYMBOLS:
946 how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
947 if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING)
948 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
949 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING)
950 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
6feb9908 951 break;
aa713662 952 case OPTION_ALLOW_MULTIPLE_DEFINITION:
b34976b6 953 link_info.allow_multiple_definition = TRUE;
aa713662 954 break;
31941635 955 case OPTION_NO_UNDEFINED_VERSION:
b34976b6 956 link_info.allow_undefined_version = FALSE;
31941635 957 break;
3e3b46e5
PB		 958 case OPTION_DEFAULT_SYMVER:
959 link_info.create_default_symver = TRUE;
960 break;
fc0e6df6
PB		 961 case OPTION_DEFAULT_IMPORTED_SYMVER:
962 link_info.default_imported_symver = TRUE;
963 break;
252b5132 964 case OPTION_NO_WARN_MISMATCH:
b34976b6 965 command_line.warn_mismatch = FALSE;
252b5132
RH		 966 break;
967 case OPTION_NOINHIBIT_EXEC:
b34976b6 968 force_make_executable = TRUE;
252b5132 969 break;
361b220e 970 case OPTION_NOSTDLIB:
b34976b6 971 config.only_cmd_line_lib_dirs = TRUE;
361b220e 972 break;
252b5132 973 case OPTION_NO_WHOLE_ARCHIVE:
b34976b6 974 whole_archive = FALSE;
252b5132
RH		 975 break;
976 case 'O':
977 /* FIXME "-O<non-digits> <value>" used to set the address of
978 section <non-digits>. Was this for compatibility with
979 something, or can we create a new option to do that
980 (with a syntax similar to -defsym)?
981 getopt can't handle two args to an option without kludges. */
982
983 /* Enable optimizations of output files. */
b34976b6 984 link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE;
252b5132
RH		 985 break;
986 case 'o':
5cc18311 987 lang_add_output (optarg, 0);
252b5132
RH		 988 break;
989 case OPTION_OFORMAT:
1579bae1 990 lang_add_output_format (optarg, NULL, NULL, 0);
252b5132 991 break;
a712da20 992 case 'q':
b34976b6 993 link_info.emitrelocations = TRUE;
a712da20 994 break;
8c5ff972 995 case 'i':
252b5132 996 case 'r':
210a7bd1
NC		 997 if (optind == last_optind)
998 /* This can happen if the user put "-rpath,a" on the command
999 line. (Or something similar. The comma is important).
1000 Getopt becomes confused and thinks that this is a -r option
1001 but it cannot parse the text after the -r so it refuses to
1002 increment the optind counter. Detect this case and issue
1003 an error message here. We cannot just make this a warning,
1004 increment optind, and continue because getopt is too confused
1005 and will seg-fault the next time around. */
1006 einfo(_("%P%F: bad -rpath option\n"));
b7a26f91 1007
1049f94e 1008 link_info.relocatable = TRUE;
b34976b6
AM		 1009 config.build_constructors = FALSE;
1010 config.magic_demand_paged = FALSE;
1011 config.text_read_only = FALSE;
1012 config.dynamic_link = FALSE;
252b5132
RH		 1013 break;
1014 case 'R':
1015 /* The GNU linker traditionally uses -R to mean to include
1016 only the symbols from a file. The Solaris linker uses -R
1017 to set the path used by the runtime linker to find
1018 libraries. This is the GNU linker -rpath argument. We
1019 try to support both simultaneously by checking the file
1020 named. If it is a directory, rather than a regular file,
1021 we assume -rpath was meant. */
1022 {
1023 struct stat s;
1024
1025 if (stat (optarg, &s) >= 0
1026 && ! S_ISDIR (s.st_mode))
1027 {
1028 lang_add_input_file (optarg,
1029 lang_input_file_is_symbols_only_enum,
1579bae1 1030 NULL);
252b5132
RH		 1031 break;
1032 }
1033 }
1034 /* Fall through. */
1035 case OPTION_RPATH:
1036 if (command_line.rpath == NULL)
d1b2b2dc 1037 command_line.rpath = xstrdup (optarg);
252b5132
RH		 1038 else
1039 {
1040 size_t rpath_len = strlen (command_line.rpath);
1041 size_t optarg_len = strlen (optarg);
1042 char *buf;
1043 char *cp = command_line.rpath;
1044
1045 /* First see whether OPTARG is already in the path. */
1046 do
1047 {
1048 size_t idx = 0;
210a7bd1 1049
252b5132
RH		 1050 while (optarg[idx] != '\0' && optarg[idx] == cp[idx])
1051 ++idx;
1052 if (optarg[idx] == '\0'
1053 && (cp[idx] == '\0' || cp[idx] == ':'))
1054 /* We found it. */
1055 break;
1056
1057 /* Not yet found. */
1058 cp = strchr (cp, ':');
1059 if (cp != NULL)
1060 ++cp;
1061 }
1062 while (cp != NULL);
1063
1064 if (cp == NULL)
1065 {
1066 buf = xmalloc (rpath_len + optarg_len + 2);
1067 sprintf (buf, "%s:%s", command_line.rpath, 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)
d1b2b2dc 1075 command_line.rpath_link = xstrdup (optarg);
252b5132
RH		 1076 else
1077 {
1078 char *buf;
1079
1080 buf = xmalloc (strlen (command_line.rpath_link)
1081 + strlen (optarg)
1082 + 2);
1083 sprintf (buf, "%s:%s", command_line.rpath_link, optarg);
1084 free (command_line.rpath_link);
1085 command_line.rpath_link = buf;
1086 }
1087 break;
1088 case OPTION_RELAX:
b34976b6 1089 command_line.relax = TRUE;
252b5132
RH		 1090 break;
1091 case OPTION_RETAIN_SYMBOLS_FILE:
1092 add_keepsyms_file (optarg);
1093 break;
1094 case 'S':
1095 link_info.strip = strip_debugger;
1096 break;
1097 case 's':
1098 link_info.strip = strip_all;
1099 break;
d5cd3933
AM		 1100 case OPTION_STRIP_DISCARDED:
1101 link_info.strip_discarded = TRUE;
1102 break;
1103 case OPTION_NO_STRIP_DISCARDED:
1104 link_info.strip_discarded = FALSE;
1105 break;
252b5132
RH		 1106 case OPTION_SHARED:
1107 if (config.has_shared)
560e09e9
NC		 1108 {
1109 link_info.shared = TRUE;
1110 /* When creating a shared library, the default
1111 behaviour is to ignore any unresolved references. */
1112 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1113 link_info.unresolved_syms_in_objects = RM_IGNORE;
1114 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1115 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1116 }
252b5132
RH		 1117 else
1118 einfo (_("%P%F: -shared not supported\n"));
1119 break;
36af4a4e
JJ		 1120 case OPTION_PIE:
1121 if (config.has_shared)
1122 {
1123 link_info.shared = TRUE;
1124 link_info.pie = TRUE;
1125 }
1126 else
1127 einfo (_("%P%F: -pie not supported\n"));
1128 break;
252b5132
RH		 1129 case 'h': /* Used on Solaris. */
1130 case OPTION_SONAME:
1131 command_line.soname = optarg;
1132 break;
1133 case OPTION_SORT_COMMON:
b34976b6 1134 config.sort_common = TRUE;
252b5132 1135 break;
bcaa7b3e
L		 1136 case OPTION_SORT_SECTION:
1137 if (strcmp (optarg, N_("name")) == 0)
1138 sort_section = by_name;
1139 else if (strcmp (optarg, N_("alignment")) == 0)
1140 sort_section = by_alignment;
1141 else
1142 einfo (_("%P%F: invalid section sorting option: %s\n"),
1143 optarg);
1144 break;
252b5132 1145 case OPTION_STATS:
b34976b6 1146 config.stats = TRUE;
252b5132
RH		 1147 break;
1148 case OPTION_SYMBOLIC:
d8cf8b51
L		 1149 command_line.symbolic = symbolic;
1150 break;
1151 case OPTION_SYMBOLIC_FUNCTIONS:
1152 command_line.symbolic = symbolic_functions;
252b5132
RH		 1153 break;
1154 case 't':
b34976b6 1155 trace_files = TRUE;
252b5132
RH		 1156 break;
1157 case 'T':
1158 ldfile_open_command_file (optarg);
1159 parser_input = input_script;
1160 yyparse ();
1161 break;
14be8564
L		 1162 case OPTION_DEFAULT_SCRIPT:
1163 command_line.default_script = optarg;
1164 break;
176355da
NC		 1165 case OPTION_SECTION_START:
1166 {
1167 char *optarg2;
227aeb07
AM		 1168 char *sec_name;
1169 int len;
176355da
NC		 1170
1171 /* Check for <something>=<somthing>... */
1172 optarg2 = strchr (optarg, '=');
1173 if (optarg2 == NULL)
6feb9908
AM		 1174 einfo (_("%P%F: invalid argument to option"
1175 " \"--section-start\"\n"));
176355da 1176
e47d05ad 1177 optarg2++;
5cc18311 1178
176355da
NC		 1179 /* So far so good. Are all the args present? */
1180 if ((*optarg == '\0') || (*optarg2 == '\0'))
6feb9908
AM		 1181 einfo (_("%P%F: missing argument(s) to option"
1182 " \"--section-start\"\n"));
176355da 1183
227aeb07
AM		 1184 /* We must copy the section name as set_section_start
1185 doesn't do it for us. */
1186 len = optarg2 - optarg;
1187 sec_name = xmalloc (len);
1188 memcpy (sec_name, optarg, len - 1);
1189 sec_name[len - 1] = 0;
176355da
NC		 1190
1191 /* Then set it... */
227aeb07 1192 set_section_start (sec_name, optarg2);
176355da
NC		 1193 }
1194 break;
ea20a7da
CC		 1195 case OPTION_TARGET_HELP:
1196 /* Mention any target specific options. */
b7a26f91
KH		 1197 ldemul_list_emulation_options (stdout);
1198 exit (0);
252b5132 1199 case OPTION_TBSS:
ba916c8a 1200 set_segment_start (".bss", optarg);
252b5132
RH		 1201 break;
1202 case OPTION_TDATA:
ba916c8a 1203 set_segment_start (".data", optarg);
252b5132
RH		 1204 break;
1205 case OPTION_TTEXT:
ba916c8a 1206 set_segment_start (".text", optarg);
252b5132
RH		 1207 break;
1208 case OPTION_TRADITIONAL_FORMAT:
b34976b6 1209 link_info.traditional_format = TRUE;
252b5132
RH		 1210 break;
1211 case OPTION_TASK_LINK:
b34976b6 1212 link_info.task_link = TRUE;
252b5132
RH		 1213 /* Fall through - do an implied -r option. */
1214 case OPTION_UR:
1049f94e 1215 link_info.relocatable = TRUE;
b34976b6
AM		 1216 config.build_constructors = TRUE;
1217 config.magic_demand_paged = FALSE;
1218 config.text_read_only = FALSE;
1219 config.dynamic_link = FALSE;
252b5132
RH		 1220 break;
1221 case 'u':
1222 ldlang_add_undef (optarg);
1223 break;
a854a4a7 1224 case OPTION_UNIQUE:
577a0623
AM		 1225 if (optarg != NULL)
1226 lang_add_unique (optarg);
1227 else
b34976b6 1228 config.unique_orphan_sections = TRUE;
a854a4a7 1229 break;
252b5132
RH		 1230 case OPTION_VERBOSE:
1231 ldversion (1);
b34976b6
AM		 1232 version_printed = TRUE;
1233 trace_file_tries = TRUE;
8aae64e6 1234 overflow_cutoff_limit = -2;
252b5132
RH		 1235 break;
1236 case 'v':
1237 ldversion (0);
b34976b6 1238 version_printed = TRUE;
252b5132
RH		 1239 break;
1240 case 'V':
1241 ldversion (1);
b34976b6 1242 version_printed = TRUE;
252b5132
RH		 1243 break;
1244 case OPTION_VERSION:
d32820f2 1245 ldversion (2);
252b5132
RH		 1246 xexit (0);
1247 break;
1248 case OPTION_VERSION_SCRIPT:
1249 /* This option indicates a small script that only specifies
1579bae1
AM		 1250 version information. Read it, but don't assume that
1251 we've seen a linker script. */
252b5132 1252 {
b7a26f91 1253 FILE *hold_script_handle;
252b5132 1254
b9a8de1e 1255 hold_script_handle = saved_script_handle;
252b5132 1256 ldfile_open_command_file (optarg);
b9a8de1e 1257 saved_script_handle = hold_script_handle;
252b5132
RH		 1258 parser_input = input_version_script;
1259 yyparse ();
1260 }
1261 break;
1262 case OPTION_VERSION_EXPORTS_SECTION:
1263 /* This option records a version symbol to be applied to the
1264 symbols listed for export to be found in the object files
1265 .exports sections. */
1266 command_line.version_exports_section = optarg;
1267 break;
40b36307 1268 case OPTION_DYNAMIC_LIST_DATA:
d8cf8b51
L		 1269 command_line.dynamic_list = dynamic_list_data;
1270 if (command_line.symbolic == symbolic)
1271 command_line.symbolic = symbolic_unset;
40b36307 1272 break;
55255dae
L		 1273 case OPTION_DYNAMIC_LIST_CPP_TYPEINFO:
1274 lang_append_dynamic_list_cpp_typeinfo ();
d8cf8b51
L		 1275 if (command_line.dynamic_list != dynamic_list_data)
1276 command_line.dynamic_list = dynamic_list;
1277 if (command_line.symbolic == symbolic)
1278 command_line.symbolic = symbolic_unset;
40b36307
L		 1279 break;
1280 case OPTION_DYNAMIC_LIST_CPP_NEW:
1281 lang_append_dynamic_list_cpp_new ();
d8cf8b51
L		 1282 if (command_line.dynamic_list != dynamic_list_data)
1283 command_line.dynamic_list = dynamic_list;
1284 if (command_line.symbolic == symbolic)
1285 command_line.symbolic = symbolic_unset;
55255dae
L		 1286 break;
1287 case OPTION_DYNAMIC_LIST:
1288 /* This option indicates a small script that only specifies
1289 a dynamic list. Read it, but don't assume that we've
1290 seen a linker script. */
1291 {
1292 FILE *hold_script_handle;
1293
1294 hold_script_handle = saved_script_handle;
1295 ldfile_open_command_file (optarg);
1296 saved_script_handle = hold_script_handle;
1297 parser_input = input_dynamic_list;
1298 yyparse ();
1299 }
d8cf8b51
L		 1300 if (command_line.dynamic_list != dynamic_list_data)
1301 command_line.dynamic_list = dynamic_list;
1302 if (command_line.symbolic == symbolic)
1303 command_line.symbolic = symbolic_unset;
55255dae 1304 break;
252b5132 1305 case OPTION_WARN_COMMON:
b34976b6 1306 config.warn_common = TRUE;
252b5132
RH		 1307 break;
1308 case OPTION_WARN_CONSTRUCTORS:
b34976b6 1309 config.warn_constructors = TRUE;
252b5132 1310 break;
7ce691ae 1311 case OPTION_WARN_FATAL:
b34976b6 1312 config.fatal_warnings = TRUE;
7ce691ae 1313 break;
252b5132 1314 case OPTION_WARN_MULTIPLE_GP:
b34976b6 1315 config.warn_multiple_gp = TRUE;
252b5132
RH		 1316 break;
1317 case OPTION_WARN_ONCE:
b34976b6 1318 config.warn_once = TRUE;
252b5132
RH		 1319 break;
1320 case OPTION_WARN_SECTION_ALIGN:
b34976b6 1321 config.warn_section_align = TRUE;
252b5132 1322 break;
8fdd7217
NC		 1323 case OPTION_WARN_SHARED_TEXTREL:
1324 link_info.warn_shared_textrel = TRUE;
1325 break;
252b5132 1326 case OPTION_WHOLE_ARCHIVE:
b34976b6 1327 whole_archive = TRUE;
252b5132 1328 break;
e56f61be
L		 1329 case OPTION_ADD_NEEDED:
1330 add_needed = TRUE;
1331 break;
1332 case OPTION_NO_ADD_NEEDED:
1333 add_needed = FALSE;
1334 break;
4a43e768
AM		 1335 case OPTION_AS_NEEDED:
1336 as_needed = TRUE;
1337 break;
1338 case OPTION_NO_AS_NEEDED:
1339 as_needed = FALSE;
1340 break;
252b5132
RH		 1341 case OPTION_WRAP:
1342 add_wrap (optarg);
1343 break;
f5fa8ca2
JJ		 1344 case OPTION_DISCARD_NONE:
1345 link_info.discard = discard_none;
1346 break;
252b5132
RH		 1347 case 'X':
1348 link_info.discard = discard_l;
1349 break;
1350 case 'x':
1351 link_info.discard = discard_all;
1352 break;
1353 case 'Y':
0112cd26 1354 if (CONST_STRNEQ (optarg, "P,"))
252b5132 1355 optarg += 2;
5ed6aba4
NC		 1356 if (default_dirlist != NULL)
1357 free (default_dirlist);
252b5132
RH		 1358 default_dirlist = xstrdup (optarg);
1359 break;
1360 case 'y':
1361 add_ysym (optarg);
1362 break;
db6751f2
JJ		 1363 case OPTION_SPARE_DYNAMIC_TAGS:
1364 link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0);
1365 break;
252b5132 1366 case OPTION_SPLIT_BY_RELOC:
a854a4a7
AM		 1367 if (optarg != NULL)
1368 config.split_by_reloc = strtoul (optarg, NULL, 0);
1369 else
1370 config.split_by_reloc = 32768;
5cc18311 1371 break;
252b5132 1372 case OPTION_SPLIT_BY_FILE:
a854a4a7
AM		 1373 if (optarg != NULL)
1374 config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
1375 else
1376 config.split_by_file = 1;
5cc18311 1377 break;
252b5132 1378 case OPTION_CHECK_SECTIONS:
b34976b6 1379 command_line.check_section_addresses = TRUE;
252b5132
RH		 1380 break;
1381 case OPTION_NO_CHECK_SECTIONS:
b34976b6 1382 command_line.check_section_addresses = FALSE;
252b5132 1383 break;
312b768e
NC		 1384 case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH:
1385 command_line.accept_unknown_input_arch = TRUE;
1386 break;
1387 case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH:
1388 command_line.accept_unknown_input_arch = FALSE;
1389 break;
252b5132
RH		 1390 case '(':
1391 if (ingroup)
210a7bd1
NC		 1392 einfo (_("%P%F: may not nest groups (--help for usage)\n"));
1393
252b5132
RH		 1394 lang_enter_group ();
1395 ingroup = 1;
1396 break;
1397 case ')':
1398 if (! ingroup)
210a7bd1
NC		 1399 einfo (_("%P%F: group ended before it began (--help for usage)\n"));
1400
252b5132
RH		 1401 lang_leave_group ();
1402 ingroup = 0;
1403 break;
3dbf70a2
MM		 1404
1405 case OPTION_INIT:
1406 link_info.init_function = optarg;
1407 break;
5cc18311 1408
3dbf70a2
MM		 1409 case OPTION_FINI:
1410 link_info.fini_function = optarg;
1411 break;
2d643429 1412
35835446 1413 case OPTION_REDUCE_MEMORY_OVERHEADS:
c0f00686 1414 link_info.reduce_memory_overheads = TRUE;
2d643429
NC		 1415 if (config.hash_table_size == 0)
1416 config.hash_table_size = 1021;
35835446 1417 break;
2d643429
NC		 1418
1419 case OPTION_HASH_SIZE:
1420 {
1421 bfd_size_type new_size;
1422
1423 new_size = strtoul (optarg, NULL, 0);
1424 if (new_size)
1425 config.hash_table_size = new_size;
1426 else
1427 einfo (_("%P%X: --hash-size needs a numeric argument\n"));
1428 }
1429 break;
252b5132
RH		 1430 }
1431 }
1432
1433 if (ingroup)
1434 lang_leave_group ();
1435
1436 if (default_dirlist != NULL)
5ed6aba4
NC		 1437 {
1438 set_default_dirlist (default_dirlist);
1439 free (default_dirlist);
1440 }
560e09e9
NC		 1441
1442 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1443 /* FIXME: Should we allow emulations a chance to set this ? */
1444 link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
6feb9908 1445
560e09e9
NC		 1446 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1447 /* FIXME: Should we allow emulations a chance to set this ? */
1448 link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
252b5132
RH		 1449}
1450
1451/* Add the (colon-separated) elements of DIRLIST_PTR to the
1452 library search path. */
1453
1454static void
1579bae1 1455set_default_dirlist (char *dirlist_ptr)
252b5132
RH		 1456{
1457 char *p;
1458
1459 while (1)
1460 {
1461 p = strchr (dirlist_ptr, PATH_SEPARATOR);
1462 if (p != NULL)
1463 *p = '\0';
1464 if (*dirlist_ptr != '\0')
b34976b6 1465 ldfile_add_library_path (dirlist_ptr, TRUE);
252b5132
RH		 1466 if (p == NULL)
1467 break;
1468 dirlist_ptr = p + 1;
1469 }
1470}
1471
1472static void
1579bae1 1473set_section_start (char *sect, char *valstr)
252b5132 1474{
93697284
AM		 1475 const char *end;
1476 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
252b5132
RH		 1477 if (*end)
1478 einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
ba916c8a 1479 lang_section_start (sect, exp_intop (val), NULL);
252b5132 1480}
ba916c8a
MM		 1481
1482static void
1483set_segment_start (const char *section, char *valstr)
1484{
1485 const char *name;
1486 const char *end;
1487 segment_type *seg;
1488
1489 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1490 if (*end)
1491 einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1492 /* If we already have an entry for this segment, update the existing
1493 value. */
1494 name = section + 1;
1495 for (seg = segments; seg; seg = seg->next)
1496 if (strcmp (seg->name, name) == 0)
1497 {
1498 seg->value = val;
1499 return;
1500 }
1501 /* There was no existing value so we must create a new segment
1502 entry. */
1503 seg = stat_alloc (sizeof (*seg));
1504 seg->name = name;
1505 seg->value = val;
1506 seg->used = FALSE;
1507 /* Add it to the linked list of segments. */
1508 seg->next = segments;
1509 segments = seg;
1510 /* Historically, -Ttext and friends set the base address of a
1511 particular section. For backwards compatibility, we still do
1512 that. If a SEGMENT_START directive is seen, the section address
1513 assignment will be disabled. */
1514 lang_section_start (section, exp_intop (val), seg);
1515}
1516
252b5132
RH		 1517\f
1518/* Print help messages for the options. */
1519
1520static void
1579bae1 1521help (void)
252b5132 1522{
e4897a32 1523 unsigned i;
252b5132 1524 const char **targets, **pp;
a55ff675 1525 int len;
252b5132
RH		 1526
1527 printf (_("Usage: %s [options] file...\n"), program_name);
1528
1529 printf (_("Options:\n"));
1530 for (i = 0; i < OPTION_COUNT; i++)
1531 {
1532 if (ld_options[i].doc != NULL)
1533 {
b34976b6 1534 bfd_boolean comma;
e4897a32 1535 unsigned j;
252b5132
RH		 1536
1537 printf (" ");
1538
b34976b6 1539 comma = FALSE;
252b5132
RH		 1540 len = 2;
1541
1542 j = i;
1543 do
1544 {
1545 if (ld_options[j].shortopt != '\0'
1546 && ld_options[j].control != NO_HELP)
1547 {
1548 printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
1549 len += (comma ? 2 : 0) + 2;
1550 if (ld_options[j].arg != NULL)
1551 {
1552 if (ld_options[j].opt.has_arg != optional_argument)
1553 {
1554 printf (" ");
1555 ++len;
1556 }
1557 printf ("%s", _(ld_options[j].arg));
1558 len += strlen (_(ld_options[j].arg));
1559 }
b34976b6 1560 comma = TRUE;
252b5132
RH		 1561 }
1562 ++j;
1563 }
1564 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1565
1566 j = i;
1567 do
1568 {
1569 if (ld_options[j].opt.name != NULL
1570 && ld_options[j].control != NO_HELP)
1571 {
e4897a32
NC		 1572 int two_dashes =
1573 (ld_options[j].control == TWO_DASHES
1574 || ld_options[j].control == EXACTLY_TWO_DASHES);
b7a26f91 1575
252b5132
RH		 1576 printf ("%s-%s%s",
1577 comma ? ", " : "",
e4897a32 1578 two_dashes ? "-" : "",
252b5132
RH		 1579 ld_options[j].opt.name);
1580 len += ((comma ? 2 : 0)
1581 + 1
e4897a32 1582 + (two_dashes ? 1 : 0)
252b5132
RH		 1583 + strlen (ld_options[j].opt.name));
1584 if (ld_options[j].arg != NULL)
1585 {
1586 printf (" %s", _(ld_options[j].arg));
1587 len += 1 + strlen (_(ld_options[j].arg));
1588 }
b34976b6 1589 comma = TRUE;
252b5132
RH		 1590 }
1591 ++j;
1592 }
1593 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1594
1595 if (len >= 30)
1596 {
1597 printf ("\n");
1598 len = 0;
1599 }
1600
1601 for (; len < 30; len++)
1602 putchar (' ');
1603
1604 printf ("%s\n", _(ld_options[i].doc));
1605 }
1606 }
a55ff675
MM		 1607 printf (_(" @FILE"));
1608 for (len = strlen (" @FILE"); len < 30; len++)
1609 putchar (' ');
1610 printf (_("Read options from FILE\n"));
252b5132 1611
f75692fe
NC		 1612 /* Note: Various tools (such as libtool) depend upon the
1613 format of the listings below - do not change them. */
252b5132 1614 /* xgettext:c-format */
f75692fe 1615 printf (_("%s: supported targets:"), program_name);
252b5132
RH		 1616 targets = bfd_target_list ();
1617 for (pp = targets; *pp != NULL; pp++)
1618 printf (" %s", *pp);
1619 free (targets);
1620 printf ("\n");
1621
1622 /* xgettext:c-format */
f75692fe 1623 printf (_("%s: supported emulations: "), program_name);
252b5132
RH		 1624 ldemul_list_emulations (stdout);
1625 printf ("\n");
1626
1627 /* xgettext:c-format */
1628 printf (_("%s: emulation specific options:\n"), program_name);
1629 ldemul_list_emulation_options (stdout);
1630 printf ("\n");
c20f4f8c 1631
92f01d61
JM		 1632 if (REPORT_BUGS_TO[0])
1633 printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);
252b5132 1634}
GDB Binutils - Deliverables
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