| 1 | /* Parse options for the GNU linker. |
| 2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
| 3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011 |
| 4 | Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of the GNU Binutils. |
| 7 | |
| 8 | This program 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 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program 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. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 21 | MA 02110-1301, USA. */ |
| 22 | |
| 23 | #include "sysdep.h" |
| 24 | #include "bfd.h" |
| 25 | #include "bfdver.h" |
| 26 | #include "libiberty.h" |
| 27 | #include <stdio.h> |
| 28 | #include <string.h> |
| 29 | #include "safe-ctype.h" |
| 30 | #include "getopt.h" |
| 31 | #include "bfdlink.h" |
| 32 | #include "ld.h" |
| 33 | #include "ldmain.h" |
| 34 | #include "ldmisc.h" |
| 35 | #include "ldexp.h" |
| 36 | #include "ldlang.h" |
| 37 | #include <ldgram.h> |
| 38 | #include "ldlex.h" |
| 39 | #include "ldfile.h" |
| 40 | #include "ldver.h" |
| 41 | #include "ldemul.h" |
| 42 | #include "demangle.h" |
| 43 | #ifdef ENABLE_PLUGINS |
| 44 | #include "plugin.h" |
| 45 | #endif /* ENABLE_PLUGINS */ |
| 46 | |
| 47 | #ifndef PATH_SEPARATOR |
| 48 | #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) |
| 49 | #define PATH_SEPARATOR ';' |
| 50 | #else |
| 51 | #define PATH_SEPARATOR ':' |
| 52 | #endif |
| 53 | #endif |
| 54 | |
| 55 | /* Somewhere above, sys/stat.h got included . . . . */ |
| 56 | #if !defined(S_ISDIR) && defined(S_IFDIR) |
| 57 | #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) |
| 58 | #endif |
| 59 | |
| 60 | static void set_default_dirlist (char *); |
| 61 | static void set_section_start (char *, char *); |
| 62 | static void set_segment_start (const char *, char *); |
| 63 | static void help (void); |
| 64 | |
| 65 | /* Non-zero if we are processing a --defsym from the command line. */ |
| 66 | int parsing_defsym = 0; |
| 67 | |
| 68 | /* Codes used for the long options with no short synonyms. 150 isn't |
| 69 | special; it's just an arbitrary non-ASCII char value. */ |
| 70 | enum option_values |
| 71 | { |
| 72 | OPTION_ASSERT = 150, |
| 73 | OPTION_CALL_SHARED, |
| 74 | OPTION_CREF, |
| 75 | OPTION_DEFSYM, |
| 76 | OPTION_DEMANGLE, |
| 77 | OPTION_DYNAMIC_LINKER, |
| 78 | OPTION_SYSROOT, |
| 79 | OPTION_EB, |
| 80 | OPTION_EL, |
| 81 | OPTION_EMBEDDED_RELOCS, |
| 82 | OPTION_EXPORT_DYNAMIC, |
| 83 | OPTION_NO_EXPORT_DYNAMIC, |
| 84 | OPTION_HELP, |
| 85 | OPTION_IGNORE, |
| 86 | OPTION_MAP, |
| 87 | OPTION_NO_DEMANGLE, |
| 88 | OPTION_NO_KEEP_MEMORY, |
| 89 | OPTION_NO_WARN_MISMATCH, |
| 90 | OPTION_NO_WARN_SEARCH_MISMATCH, |
| 91 | OPTION_NOINHIBIT_EXEC, |
| 92 | OPTION_NON_SHARED, |
| 93 | OPTION_NO_WHOLE_ARCHIVE, |
| 94 | OPTION_OFORMAT, |
| 95 | OPTION_RELAX, |
| 96 | OPTION_NO_RELAX, |
| 97 | OPTION_RETAIN_SYMBOLS_FILE, |
| 98 | OPTION_RPATH, |
| 99 | OPTION_RPATH_LINK, |
| 100 | OPTION_SHARED, |
| 101 | OPTION_SONAME, |
| 102 | OPTION_SORT_COMMON, |
| 103 | OPTION_SORT_SECTION, |
| 104 | OPTION_STATS, |
| 105 | OPTION_SYMBOLIC, |
| 106 | OPTION_SYMBOLIC_FUNCTIONS, |
| 107 | OPTION_TASK_LINK, |
| 108 | OPTION_TBSS, |
| 109 | OPTION_TDATA, |
| 110 | OPTION_TTEXT, |
| 111 | OPTION_TTEXT_SEGMENT, |
| 112 | OPTION_TRADITIONAL_FORMAT, |
| 113 | OPTION_UR, |
| 114 | OPTION_VERBOSE, |
| 115 | OPTION_VERSION, |
| 116 | OPTION_VERSION_SCRIPT, |
| 117 | OPTION_VERSION_EXPORTS_SECTION, |
| 118 | OPTION_DYNAMIC_LIST, |
| 119 | OPTION_DYNAMIC_LIST_CPP_NEW, |
| 120 | OPTION_DYNAMIC_LIST_CPP_TYPEINFO, |
| 121 | OPTION_DYNAMIC_LIST_DATA, |
| 122 | OPTION_WARN_COMMON, |
| 123 | OPTION_WARN_CONSTRUCTORS, |
| 124 | OPTION_WARN_FATAL, |
| 125 | OPTION_NO_WARN_FATAL, |
| 126 | OPTION_WARN_MULTIPLE_GP, |
| 127 | OPTION_WARN_ONCE, |
| 128 | OPTION_WARN_SECTION_ALIGN, |
| 129 | OPTION_SPLIT_BY_RELOC, |
| 130 | OPTION_SPLIT_BY_FILE , |
| 131 | OPTION_WHOLE_ARCHIVE, |
| 132 | OPTION_ADD_DT_NEEDED_FOR_DYNAMIC, |
| 133 | OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC, |
| 134 | OPTION_ADD_DT_NEEDED_FOR_REGULAR, |
| 135 | OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR, |
| 136 | OPTION_WRAP, |
| 137 | OPTION_FORCE_EXE_SUFFIX, |
| 138 | OPTION_GC_SECTIONS, |
| 139 | OPTION_NO_GC_SECTIONS, |
| 140 | OPTION_PRINT_GC_SECTIONS, |
| 141 | OPTION_NO_PRINT_GC_SECTIONS, |
| 142 | OPTION_HASH_SIZE, |
| 143 | OPTION_CHECK_SECTIONS, |
| 144 | OPTION_NO_CHECK_SECTIONS, |
| 145 | OPTION_NO_UNDEFINED, |
| 146 | OPTION_INIT, |
| 147 | OPTION_FINI, |
| 148 | OPTION_SECTION_START, |
| 149 | OPTION_UNIQUE, |
| 150 | OPTION_TARGET_HELP, |
| 151 | OPTION_ALLOW_SHLIB_UNDEFINED, |
| 152 | OPTION_NO_ALLOW_SHLIB_UNDEFINED, |
| 153 | OPTION_ALLOW_MULTIPLE_DEFINITION, |
| 154 | OPTION_NO_UNDEFINED_VERSION, |
| 155 | OPTION_DEFAULT_SYMVER, |
| 156 | OPTION_DEFAULT_IMPORTED_SYMVER, |
| 157 | OPTION_DISCARD_NONE, |
| 158 | OPTION_SPARE_DYNAMIC_TAGS, |
| 159 | OPTION_NO_DEFINE_COMMON, |
| 160 | OPTION_NOSTDLIB, |
| 161 | OPTION_NO_OMAGIC, |
| 162 | OPTION_STRIP_DISCARDED, |
| 163 | OPTION_NO_STRIP_DISCARDED, |
| 164 | OPTION_ACCEPT_UNKNOWN_INPUT_ARCH, |
| 165 | OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH, |
| 166 | OPTION_PIE, |
| 167 | OPTION_UNRESOLVED_SYMBOLS, |
| 168 | OPTION_WARN_UNRESOLVED_SYMBOLS, |
| 169 | OPTION_ERROR_UNRESOLVED_SYMBOLS, |
| 170 | OPTION_WARN_SHARED_TEXTREL, |
| 171 | OPTION_WARN_ALTERNATE_EM, |
| 172 | OPTION_REDUCE_MEMORY_OVERHEADS, |
| 173 | #ifdef ENABLE_PLUGINS |
| 174 | OPTION_PLUGIN, |
| 175 | OPTION_PLUGIN_OPT, |
| 176 | #endif /* ENABLE_PLUGINS */ |
| 177 | OPTION_DEFAULT_SCRIPT, |
| 178 | OPTION_PRINT_OUTPUT_FORMAT, |
| 179 | }; |
| 180 | |
| 181 | /* The long options. This structure is used for both the option |
| 182 | parsing and the help text. */ |
| 183 | |
| 184 | enum control_enum { |
| 185 | /* Use one dash before long option name. */ |
| 186 | ONE_DASH, |
| 187 | /* Use two dashes before long option name. */ |
| 188 | TWO_DASHES, |
| 189 | /* Only accept two dashes before the long option name. |
| 190 | This is an overloading of the use of this enum, since originally it |
| 191 | was only intended to tell the --help display function how to display |
| 192 | the long option name. This feature was added in order to resolve |
| 193 | the confusion about the -omagic command line switch. Is it setting |
| 194 | the output file name to "magic" or is it setting the NMAGIC flag on |
| 195 | the output ? It has been decided that it is setting the output file |
| 196 | name, and that if you want to set the NMAGIC flag you should use -N |
| 197 | or --omagic. */ |
| 198 | EXACTLY_TWO_DASHES, |
| 199 | /* Don't mention this option in --help output. */ |
| 200 | NO_HELP |
| 201 | }; |
| 202 | |
| 203 | struct ld_option |
| 204 | { |
| 205 | /* The long option information. */ |
| 206 | struct option opt; |
| 207 | /* The short option with the same meaning ('\0' if none). */ |
| 208 | char shortopt; |
| 209 | /* The name of the argument (NULL if none). */ |
| 210 | const char *arg; |
| 211 | /* The documentation string. If this is NULL, this is a synonym for |
| 212 | the previous option. */ |
| 213 | const char *doc; |
| 214 | enum control_enum control; |
| 215 | }; |
| 216 | |
| 217 | static const struct ld_option ld_options[] = |
| 218 | { |
| 219 | { {NULL, required_argument, NULL, '\0'}, |
| 220 | 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"), |
| 221 | ONE_DASH }, |
| 222 | { {"architecture", required_argument, NULL, 'A'}, |
| 223 | 'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES }, |
| 224 | { {"format", required_argument, NULL, 'b'}, |
| 225 | 'b', N_("TARGET"), N_("Specify target for following input files"), |
| 226 | TWO_DASHES }, |
| 227 | { {"mri-script", required_argument, NULL, 'c'}, |
| 228 | 'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES }, |
| 229 | { {"dc", no_argument, NULL, 'd'}, |
| 230 | 'd', NULL, N_("Force common symbols to be defined"), ONE_DASH }, |
| 231 | { {"dp", no_argument, NULL, 'd'}, |
| 232 | '\0', NULL, NULL, ONE_DASH }, |
| 233 | { {"entry", required_argument, NULL, 'e'}, |
| 234 | 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES }, |
| 235 | { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC}, |
| 236 | 'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES }, |
| 237 | { {"no-export-dynamic", no_argument, NULL, OPTION_NO_EXPORT_DYNAMIC}, |
| 238 | '\0', NULL, N_("Undo the effect of --export-dynamic"), TWO_DASHES }, |
| 239 | { {"EB", no_argument, NULL, OPTION_EB}, |
| 240 | '\0', NULL, N_("Link big-endian objects"), ONE_DASH }, |
| 241 | { {"EL", no_argument, NULL, OPTION_EL}, |
| 242 | '\0', NULL, N_("Link little-endian objects"), ONE_DASH }, |
| 243 | { {"auxiliary", required_argument, NULL, 'f'}, |
| 244 | 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"), |
| 245 | TWO_DASHES }, |
| 246 | { {"filter", required_argument, NULL, 'F'}, |
| 247 | 'F', N_("SHLIB"), N_("Filter for shared object symbol table"), |
| 248 | TWO_DASHES }, |
| 249 | { {NULL, no_argument, NULL, '\0'}, |
| 250 | 'g', NULL, N_("Ignored"), ONE_DASH }, |
| 251 | { {"gpsize", required_argument, NULL, 'G'}, |
| 252 | 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"), |
| 253 | TWO_DASHES }, |
| 254 | { {"soname", required_argument, NULL, OPTION_SONAME}, |
| 255 | 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH }, |
| 256 | { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER}, |
| 257 | 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"), |
| 258 | TWO_DASHES }, |
| 259 | { {"library", required_argument, NULL, 'l'}, |
| 260 | 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES }, |
| 261 | { {"library-path", required_argument, NULL, 'L'}, |
| 262 | 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"), |
| 263 | TWO_DASHES }, |
| 264 | { {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT}, |
| 265 | '\0', NULL, N_("Override the default sysroot location"), TWO_DASHES }, |
| 266 | { {NULL, required_argument, NULL, '\0'}, |
| 267 | 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH }, |
| 268 | { {"print-map", no_argument, NULL, 'M'}, |
| 269 | 'M', NULL, N_("Print map file on standard output"), TWO_DASHES }, |
| 270 | { {"nmagic", no_argument, NULL, 'n'}, |
| 271 | 'n', NULL, N_("Do not page align data"), TWO_DASHES }, |
| 272 | { {"omagic", no_argument, NULL, 'N'}, |
| 273 | 'N', NULL, N_("Do not page align data, do not make text readonly"), |
| 274 | EXACTLY_TWO_DASHES }, |
| 275 | { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC}, |
| 276 | '\0', NULL, N_("Page align data, make text readonly"), |
| 277 | EXACTLY_TWO_DASHES }, |
| 278 | { {"output", required_argument, NULL, 'o'}, |
| 279 | 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES }, |
| 280 | { {NULL, required_argument, NULL, '\0'}, |
| 281 | 'O', NULL, N_("Optimize output file"), ONE_DASH }, |
| 282 | #ifdef ENABLE_PLUGINS |
| 283 | { {"plugin", required_argument, NULL, OPTION_PLUGIN}, |
| 284 | '\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH }, |
| 285 | { {"plugin-opt", required_argument, NULL, OPTION_PLUGIN_OPT}, |
| 286 | '\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH }, |
| 287 | { {"flto", optional_argument, NULL, OPTION_IGNORE}, |
| 288 | '\0', NULL, N_("Ignored for GCC LTO option compatibility"), |
| 289 | ONE_DASH }, |
| 290 | { {"flto-partition=", required_argument, NULL, OPTION_IGNORE}, |
| 291 | '\0', NULL, N_("Ignored for GCC LTO option compatibility"), |
| 292 | ONE_DASH }, |
| 293 | #endif /* ENABLE_PLUGINS */ |
| 294 | { {"Qy", no_argument, NULL, OPTION_IGNORE}, |
| 295 | '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH }, |
| 296 | { {"emit-relocs", no_argument, NULL, 'q'}, |
| 297 | 'q', NULL, "Generate relocations in final output", TWO_DASHES }, |
| 298 | { {"relocatable", no_argument, NULL, 'r'}, |
| 299 | 'r', NULL, N_("Generate relocatable output"), TWO_DASHES }, |
| 300 | { {NULL, no_argument, NULL, '\0'}, |
| 301 | 'i', NULL, NULL, ONE_DASH }, |
| 302 | { {"just-symbols", required_argument, NULL, 'R'}, |
| 303 | 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"), |
| 304 | TWO_DASHES }, |
| 305 | { {"strip-all", no_argument, NULL, 's'}, |
| 306 | 's', NULL, N_("Strip all symbols"), TWO_DASHES }, |
| 307 | { {"strip-debug", no_argument, NULL, 'S'}, |
| 308 | 'S', NULL, N_("Strip debugging symbols"), TWO_DASHES }, |
| 309 | { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED}, |
| 310 | '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES }, |
| 311 | { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED}, |
| 312 | '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES }, |
| 313 | { {"trace", no_argument, NULL, 't'}, |
| 314 | 't', NULL, N_("Trace file opens"), TWO_DASHES }, |
| 315 | { {"script", required_argument, NULL, 'T'}, |
| 316 | 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES }, |
| 317 | { {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT}, |
| 318 | '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES }, |
| 319 | { {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT}, |
| 320 | '\0', NULL, NULL, ONE_DASH }, |
| 321 | { {"undefined", required_argument, NULL, 'u'}, |
| 322 | 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"), |
| 323 | TWO_DASHES }, |
| 324 | { {"unique", optional_argument, NULL, OPTION_UNIQUE}, |
| 325 | '\0', N_("[=SECTION]"), |
| 326 | N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES }, |
| 327 | { {"Ur", no_argument, NULL, OPTION_UR}, |
| 328 | '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH }, |
| 329 | { {"version", no_argument, NULL, OPTION_VERSION}, |
| 330 | 'v', NULL, N_("Print version information"), TWO_DASHES }, |
| 331 | { {NULL, no_argument, NULL, '\0'}, |
| 332 | 'V', NULL, N_("Print version and emulation information"), ONE_DASH }, |
| 333 | { {"discard-all", no_argument, NULL, 'x'}, |
| 334 | 'x', NULL, N_("Discard all local symbols"), TWO_DASHES }, |
| 335 | { {"discard-locals", no_argument, NULL, 'X'}, |
| 336 | 'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES }, |
| 337 | { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE}, |
| 338 | '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES }, |
| 339 | { {"trace-symbol", required_argument, NULL, 'y'}, |
| 340 | 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES }, |
| 341 | { {NULL, required_argument, NULL, '\0'}, |
| 342 | 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"), |
| 343 | ONE_DASH }, |
| 344 | { {"start-group", no_argument, NULL, '('}, |
| 345 | '(', NULL, N_("Start a group"), TWO_DASHES }, |
| 346 | { {"end-group", no_argument, NULL, ')'}, |
| 347 | ')', NULL, N_("End a group"), TWO_DASHES }, |
| 348 | { {"accept-unknown-input-arch", no_argument, NULL, |
| 349 | OPTION_ACCEPT_UNKNOWN_INPUT_ARCH}, |
| 350 | '\0', NULL, |
| 351 | N_("Accept input files whose architecture cannot be determined"), |
| 352 | TWO_DASHES }, |
| 353 | { {"no-accept-unknown-input-arch", no_argument, NULL, |
| 354 | OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH}, |
| 355 | '\0', NULL, N_("Reject input files whose architecture is unknown"), |
| 356 | TWO_DASHES }, |
| 357 | |
| 358 | /* The next two options are deprecated because of their similarity to |
| 359 | --as-needed and --no-as-needed. They have been replaced by |
| 360 | --copy-dt-needed-entries and --no-copy-dt-needed-entries. */ |
| 361 | { {"add-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_DYNAMIC}, |
| 362 | '\0', NULL, NULL, NO_HELP }, |
| 363 | { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC}, |
| 364 | '\0', NULL, NULL, NO_HELP }, |
| 365 | |
| 366 | { {"as-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_REGULAR}, |
| 367 | '\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"), |
| 368 | TWO_DASHES }, |
| 369 | { {"no-as-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR}, |
| 370 | '\0', NULL, N_("Always set DT_NEEDED for dynamic libraries mentioned on\n" |
| 371 | " the command line"), |
| 372 | TWO_DASHES }, |
| 373 | { {"assert", required_argument, NULL, OPTION_ASSERT}, |
| 374 | '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH }, |
| 375 | { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED}, |
| 376 | '\0', NULL, N_("Link against shared libraries"), ONE_DASH }, |
| 377 | { {"dy", no_argument, NULL, OPTION_CALL_SHARED}, |
| 378 | '\0', NULL, NULL, ONE_DASH }, |
| 379 | { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED}, |
| 380 | '\0', NULL, NULL, ONE_DASH }, |
| 381 | { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED}, |
| 382 | '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH }, |
| 383 | { {"dn", no_argument, NULL, OPTION_NON_SHARED}, |
| 384 | '\0', NULL, NULL, ONE_DASH }, |
| 385 | { {"non_shared", no_argument, NULL, OPTION_NON_SHARED}, |
| 386 | '\0', NULL, NULL, ONE_DASH }, |
| 387 | { {"static", no_argument, NULL, OPTION_NON_SHARED}, |
| 388 | '\0', NULL, NULL, ONE_DASH }, |
| 389 | { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC}, |
| 390 | '\0', NULL, N_("Bind global references locally"), ONE_DASH }, |
| 391 | { {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS}, |
| 392 | '\0', NULL, N_("Bind global function references locally"), ONE_DASH }, |
| 393 | { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS}, |
| 394 | '\0', NULL, N_("Check section addresses for overlaps (default)"), |
| 395 | TWO_DASHES }, |
| 396 | { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS}, |
| 397 | '\0', NULL, N_("Do not check section addresses for overlaps"), |
| 398 | TWO_DASHES }, |
| 399 | { {"copy-dt-needed-entries", no_argument, NULL, |
| 400 | OPTION_ADD_DT_NEEDED_FOR_DYNAMIC}, |
| 401 | '\0', NULL, N_("Copy DT_NEEDED links mentioned inside DSOs that follow"), |
| 402 | TWO_DASHES }, |
| 403 | { {"no-copy-dt-needed-entries", no_argument, NULL, |
| 404 | OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC}, |
| 405 | '\0', NULL, N_("Do not copy DT_NEEDED links mentioned inside DSOs that follow"), |
| 406 | TWO_DASHES }, |
| 407 | |
| 408 | { {"cref", no_argument, NULL, OPTION_CREF}, |
| 409 | '\0', NULL, N_("Output cross reference table"), TWO_DASHES }, |
| 410 | { {"defsym", required_argument, NULL, OPTION_DEFSYM}, |
| 411 | '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES }, |
| 412 | { {"demangle", optional_argument, NULL, OPTION_DEMANGLE}, |
| 413 | '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"), |
| 414 | TWO_DASHES }, |
| 415 | { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS}, |
| 416 | '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES}, |
| 417 | { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}, |
| 418 | '\0', NULL, N_("Treat warnings as errors"), |
| 419 | TWO_DASHES }, |
| 420 | { {"no-fatal-warnings", no_argument, NULL, OPTION_NO_WARN_FATAL}, |
| 421 | '\0', NULL, N_("Do not treat warnings as errors (default)"), |
| 422 | TWO_DASHES }, |
| 423 | { {"fini", required_argument, NULL, OPTION_FINI}, |
| 424 | '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH }, |
| 425 | { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX}, |
| 426 | '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES}, |
| 427 | { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS}, |
| 428 | '\0', NULL, N_("Remove unused sections (on some targets)"), |
| 429 | TWO_DASHES }, |
| 430 | { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS}, |
| 431 | '\0', NULL, N_("Don't remove unused sections (default)"), |
| 432 | TWO_DASHES }, |
| 433 | { {"print-gc-sections", no_argument, NULL, OPTION_PRINT_GC_SECTIONS}, |
| 434 | '\0', NULL, N_("List removed unused sections on stderr"), |
| 435 | TWO_DASHES }, |
| 436 | { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS}, |
| 437 | '\0', NULL, N_("Do not list removed unused sections"), |
| 438 | TWO_DASHES }, |
| 439 | { {"hash-size=<NUMBER>", required_argument, NULL, OPTION_HASH_SIZE}, |
| 440 | '\0', NULL, N_("Set default hash table size close to <NUMBER>"), |
| 441 | TWO_DASHES }, |
| 442 | { {"help", no_argument, NULL, OPTION_HELP}, |
| 443 | '\0', NULL, N_("Print option help"), TWO_DASHES }, |
| 444 | { {"init", required_argument, NULL, OPTION_INIT}, |
| 445 | '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH }, |
| 446 | { {"Map", required_argument, NULL, OPTION_MAP}, |
| 447 | '\0', N_("FILE"), N_("Write a map file"), ONE_DASH }, |
| 448 | { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON}, |
| 449 | '\0', NULL, N_("Do not define Common storage"), TWO_DASHES }, |
| 450 | { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE }, |
| 451 | '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES }, |
| 452 | { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY}, |
| 453 | '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES }, |
| 454 | { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED}, |
| 455 | '\0', NULL, N_("Do not allow unresolved references in object files"), |
| 456 | TWO_DASHES }, |
| 457 | { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED}, |
| 458 | '\0', NULL, N_("Allow unresolved references in shared libraries"), |
| 459 | TWO_DASHES }, |
| 460 | { {"no-allow-shlib-undefined", no_argument, NULL, |
| 461 | OPTION_NO_ALLOW_SHLIB_UNDEFINED}, |
| 462 | '\0', NULL, N_("Do not allow unresolved references in shared libs"), |
| 463 | TWO_DASHES }, |
| 464 | { {"allow-multiple-definition", no_argument, NULL, |
| 465 | OPTION_ALLOW_MULTIPLE_DEFINITION}, |
| 466 | '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES }, |
| 467 | { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION}, |
| 468 | '\0', NULL, N_("Disallow undefined version"), TWO_DASHES }, |
| 469 | { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER}, |
| 470 | '\0', NULL, N_("Create default symbol version"), TWO_DASHES }, |
| 471 | { {"default-imported-symver", no_argument, NULL, |
| 472 | OPTION_DEFAULT_IMPORTED_SYMVER}, |
| 473 | '\0', NULL, N_("Create default symbol version for imported symbols"), |
| 474 | TWO_DASHES }, |
| 475 | { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH}, |
| 476 | '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES}, |
| 477 | { {"no-warn-search-mismatch", no_argument, NULL, |
| 478 | OPTION_NO_WARN_SEARCH_MISMATCH}, |
| 479 | '\0', NULL, N_("Don't warn on finding an incompatible library"), |
| 480 | TWO_DASHES}, |
| 481 | { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE}, |
| 482 | '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES }, |
| 483 | { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC}, |
| 484 | '\0', NULL, N_("Create an output file even if errors occur"), |
| 485 | TWO_DASHES }, |
| 486 | { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC}, |
| 487 | '\0', NULL, NULL, NO_HELP }, |
| 488 | { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB}, |
| 489 | '\0', NULL, N_("Only use library directories specified on\n" |
| 490 | " the command line"), |
| 491 | ONE_DASH }, |
| 492 | { {"oformat", required_argument, NULL, OPTION_OFORMAT}, |
| 493 | '\0', N_("TARGET"), N_("Specify target of output file"), |
| 494 | EXACTLY_TWO_DASHES }, |
| 495 | { {"print-output-format", no_argument, NULL, OPTION_PRINT_OUTPUT_FORMAT}, |
| 496 | '\0', NULL, N_("Print default output format"), TWO_DASHES }, |
| 497 | { {"qmagic", no_argument, NULL, OPTION_IGNORE}, |
| 498 | '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH }, |
| 499 | { {"reduce-memory-overheads", no_argument, NULL, |
| 500 | OPTION_REDUCE_MEMORY_OVERHEADS}, |
| 501 | '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"), |
| 502 | TWO_DASHES }, |
| 503 | { {"relax", no_argument, NULL, OPTION_RELAX}, |
| 504 | '\0', NULL, N_("Reduce code size by using target specific optimizations"), TWO_DASHES }, |
| 505 | { {"no-relax", no_argument, NULL, OPTION_NO_RELAX}, |
| 506 | '\0', NULL, N_("Do not use relaxation techniques to reduce code size"), TWO_DASHES }, |
| 507 | { {"retain-symbols-file", required_argument, NULL, |
| 508 | OPTION_RETAIN_SYMBOLS_FILE}, |
| 509 | '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES }, |
| 510 | { {"rpath", required_argument, NULL, OPTION_RPATH}, |
| 511 | '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH }, |
| 512 | { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK}, |
| 513 | '\0', N_("PATH"), N_("Set link time shared library search path"), |
| 514 | ONE_DASH }, |
| 515 | { {"shared", no_argument, NULL, OPTION_SHARED}, |
| 516 | '\0', NULL, N_("Create a shared library"), ONE_DASH }, |
| 517 | { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */ |
| 518 | '\0', NULL, NULL, ONE_DASH }, |
| 519 | { {"pie", no_argument, NULL, OPTION_PIE}, |
| 520 | '\0', NULL, N_("Create a position independent executable"), ONE_DASH }, |
| 521 | { {"pic-executable", no_argument, NULL, OPTION_PIE}, |
| 522 | '\0', NULL, NULL, TWO_DASHES }, |
| 523 | { {"sort-common", optional_argument, NULL, OPTION_SORT_COMMON}, |
| 524 | '\0', N_("[=ascending|descending]"), |
| 525 | N_("Sort common symbols by alignment [in specified order]"), |
| 526 | TWO_DASHES }, |
| 527 | { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON}, |
| 528 | '\0', NULL, NULL, NO_HELP }, |
| 529 | { {"sort-section", required_argument, NULL, OPTION_SORT_SECTION}, |
| 530 | '\0', N_("name|alignment"), |
| 531 | N_("Sort sections by name or maximum alignment"), TWO_DASHES }, |
| 532 | { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS}, |
| 533 | '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"), |
| 534 | TWO_DASHES }, |
| 535 | { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE}, |
| 536 | '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"), |
| 537 | TWO_DASHES }, |
| 538 | { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC}, |
| 539 | '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"), |
| 540 | TWO_DASHES }, |
| 541 | { {"stats", no_argument, NULL, OPTION_STATS}, |
| 542 | '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES }, |
| 543 | { {"target-help", no_argument, NULL, OPTION_TARGET_HELP}, |
| 544 | '\0', NULL, N_("Display target specific options"), TWO_DASHES }, |
| 545 | { {"task-link", required_argument, NULL, OPTION_TASK_LINK}, |
| 546 | '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES }, |
| 547 | { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT}, |
| 548 | '\0', NULL, N_("Use same format as native linker"), TWO_DASHES }, |
| 549 | { {"section-start", required_argument, NULL, OPTION_SECTION_START}, |
| 550 | '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"), |
| 551 | TWO_DASHES }, |
| 552 | { {"Tbss", required_argument, NULL, OPTION_TBSS}, |
| 553 | '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH }, |
| 554 | { {"Tdata", required_argument, NULL, OPTION_TDATA}, |
| 555 | '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH }, |
| 556 | { {"Ttext", required_argument, NULL, OPTION_TTEXT}, |
| 557 | '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH }, |
| 558 | { {"Ttext-segment", required_argument, NULL, OPTION_TTEXT_SEGMENT}, |
| 559 | '\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH }, |
| 560 | { {"unresolved-symbols=<method>", required_argument, NULL, |
| 561 | OPTION_UNRESOLVED_SYMBOLS}, |
| 562 | '\0', NULL, N_("How to handle unresolved symbols. <method> is:\n" |
| 563 | " ignore-all, report-all, ignore-in-object-files,\n" |
| 564 | " ignore-in-shared-libs"), |
| 565 | TWO_DASHES }, |
| 566 | { {"verbose", optional_argument, NULL, OPTION_VERBOSE}, |
| 567 | '\0', N_("[=NUMBER]"), |
| 568 | N_("Output lots of information during link"), TWO_DASHES }, |
| 569 | { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */ |
| 570 | '\0', NULL, NULL, NO_HELP }, |
| 571 | { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT }, |
| 572 | '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES }, |
| 573 | { {"version-exports-section", required_argument, NULL, |
| 574 | OPTION_VERSION_EXPORTS_SECTION }, |
| 575 | '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n" |
| 576 | " SYMBOL as the version."), |
| 577 | TWO_DASHES }, |
| 578 | { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA}, |
| 579 | '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES }, |
| 580 | { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW}, |
| 581 | '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES }, |
| 582 | { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO}, |
| 583 | '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES }, |
| 584 | { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST}, |
| 585 | '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES }, |
| 586 | { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON}, |
| 587 | '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES }, |
| 588 | { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS}, |
| 589 | '\0', NULL, N_("Warn if global constructors/destructors are seen"), |
| 590 | TWO_DASHES }, |
| 591 | { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP}, |
| 592 | '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES }, |
| 593 | { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE}, |
| 594 | '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES }, |
| 595 | { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN}, |
| 596 | '\0', NULL, N_("Warn if start of section changes due to alignment"), |
| 597 | TWO_DASHES }, |
| 598 | { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL}, |
| 599 | '\0', NULL, N_("Warn if shared object has DT_TEXTREL"), |
| 600 | TWO_DASHES }, |
| 601 | { {"warn-alternate-em", no_argument, NULL, OPTION_WARN_ALTERNATE_EM}, |
| 602 | '\0', NULL, N_("Warn if an object has alternate ELF machine code"), |
| 603 | TWO_DASHES }, |
| 604 | { {"warn-unresolved-symbols", no_argument, NULL, |
| 605 | OPTION_WARN_UNRESOLVED_SYMBOLS}, |
| 606 | '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES }, |
| 607 | { {"error-unresolved-symbols", no_argument, NULL, |
| 608 | OPTION_ERROR_UNRESOLVED_SYMBOLS}, |
| 609 | '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES }, |
| 610 | { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE}, |
| 611 | '\0', NULL, N_("Include all objects from following archives"), |
| 612 | TWO_DASHES }, |
| 613 | { {"wrap", required_argument, NULL, OPTION_WRAP}, |
| 614 | '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES }, |
| 615 | }; |
| 616 | |
| 617 | #define OPTION_COUNT ARRAY_SIZE (ld_options) |
| 618 | |
| 619 | void |
| 620 | parse_args (unsigned argc, char **argv) |
| 621 | { |
| 622 | unsigned i; |
| 623 | int is, il, irl; |
| 624 | int ingroup = 0; |
| 625 | char *default_dirlist = NULL; |
| 626 | char *shortopts; |
| 627 | struct option *longopts; |
| 628 | struct option *really_longopts; |
| 629 | int last_optind; |
| 630 | enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR; |
| 631 | |
| 632 | shortopts = (char *) xmalloc (OPTION_COUNT * 3 + 2); |
| 633 | longopts = (struct option *) |
| 634 | xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1)); |
| 635 | really_longopts = (struct option *) |
| 636 | malloc (sizeof (*really_longopts) * (OPTION_COUNT + 1)); |
| 637 | |
| 638 | /* Starting the short option string with '-' is for programs that |
| 639 | expect options and other ARGV-elements in any order and that care about |
| 640 | the ordering of the two. We describe each non-option ARGV-element |
| 641 | as if it were the argument of an option with character code 1. */ |
| 642 | shortopts[0] = '-'; |
| 643 | is = 1; |
| 644 | il = 0; |
| 645 | irl = 0; |
| 646 | for (i = 0; i < OPTION_COUNT; i++) |
| 647 | { |
| 648 | if (ld_options[i].shortopt != '\0') |
| 649 | { |
| 650 | shortopts[is] = ld_options[i].shortopt; |
| 651 | ++is; |
| 652 | if (ld_options[i].opt.has_arg == required_argument |
| 653 | || ld_options[i].opt.has_arg == optional_argument) |
| 654 | { |
| 655 | shortopts[is] = ':'; |
| 656 | ++is; |
| 657 | if (ld_options[i].opt.has_arg == optional_argument) |
| 658 | { |
| 659 | shortopts[is] = ':'; |
| 660 | ++is; |
| 661 | } |
| 662 | } |
| 663 | } |
| 664 | if (ld_options[i].opt.name != NULL) |
| 665 | { |
| 666 | if (ld_options[i].control == EXACTLY_TWO_DASHES) |
| 667 | { |
| 668 | really_longopts[irl] = ld_options[i].opt; |
| 669 | ++irl; |
| 670 | } |
| 671 | else |
| 672 | { |
| 673 | longopts[il] = ld_options[i].opt; |
| 674 | ++il; |
| 675 | } |
| 676 | } |
| 677 | } |
| 678 | shortopts[is] = '\0'; |
| 679 | longopts[il].name = NULL; |
| 680 | really_longopts[irl].name = NULL; |
| 681 | |
| 682 | ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts); |
| 683 | |
| 684 | /* The -G option is ambiguous on different platforms. Sometimes it |
| 685 | specifies the largest data size to put into the small data |
| 686 | section. Sometimes it is equivalent to --shared. Unfortunately, |
| 687 | the first form takes an argument, while the second does not. |
| 688 | |
| 689 | We need to permit the --shared form because on some platforms, |
| 690 | such as Solaris, gcc -shared will pass -G to the linker. |
| 691 | |
| 692 | To permit either usage, we look through the argument list. If we |
| 693 | find -G not followed by a number, we change it into --shared. |
| 694 | This will work for most normal cases. */ |
| 695 | for (i = 1; i < argc; i++) |
| 696 | if (strcmp (argv[i], "-G") == 0 |
| 697 | && (i + 1 >= argc |
| 698 | || ! ISDIGIT (argv[i + 1][0]))) |
| 699 | argv[i] = (char *) "--shared"; |
| 700 | |
| 701 | /* Because we permit long options to start with a single dash, and |
| 702 | we have a --library option, and the -l option is conventionally |
| 703 | used with an immediately following argument, we can have bad |
| 704 | results if somebody tries to use -l with a library whose name |
| 705 | happens to start with "ibrary", as in -li. We avoid problems by |
| 706 | simply turning -l into --library. This means that users will |
| 707 | have to use two dashes in order to use --library, which is OK |
| 708 | since that's how it is documented. |
| 709 | |
| 710 | FIXME: It's possible that this problem can arise for other short |
| 711 | options as well, although the user does always have the recourse |
| 712 | of adding a space between the option and the argument. */ |
| 713 | for (i = 1; i < argc; i++) |
| 714 | { |
| 715 | if (argv[i][0] == '-' |
| 716 | && argv[i][1] == 'l' |
| 717 | && argv[i][2] != '\0') |
| 718 | { |
| 719 | char *n; |
| 720 | |
| 721 | n = (char *) xmalloc (strlen (argv[i]) + 20); |
| 722 | sprintf (n, "--library=%s", argv[i] + 2); |
| 723 | argv[i] = n; |
| 724 | } |
| 725 | } |
| 726 | |
| 727 | last_optind = -1; |
| 728 | while (1) |
| 729 | { |
| 730 | int longind; |
| 731 | int optc; |
| 732 | |
| 733 | /* Using last_optind lets us avoid calling ldemul_parse_args |
| 734 | multiple times on a single option, which would lead to |
| 735 | confusion in the internal static variables maintained by |
| 736 | getopt. This could otherwise happen for an argument like |
| 737 | -nx, in which the -n is parsed as a single option, and we |
| 738 | loop around to pick up the -x. */ |
| 739 | if (optind != last_optind) |
| 740 | if (ldemul_parse_args (argc, argv)) |
| 741 | continue; |
| 742 | |
| 743 | /* getopt_long_only is like getopt_long, but '-' as well as '--' |
| 744 | can indicate a long option. */ |
| 745 | opterr = 0; |
| 746 | last_optind = optind; |
| 747 | optc = getopt_long_only (argc, argv, shortopts, longopts, &longind); |
| 748 | if (optc == '?') |
| 749 | { |
| 750 | optind = last_optind; |
| 751 | optc = getopt_long (argc, argv, "-", really_longopts, &longind); |
| 752 | } |
| 753 | |
| 754 | if (ldemul_handle_option (optc)) |
| 755 | continue; |
| 756 | |
| 757 | if (optc == -1) |
| 758 | break; |
| 759 | |
| 760 | switch (optc) |
| 761 | { |
| 762 | case '?': |
| 763 | einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]); |
| 764 | /* Fall through. */ |
| 765 | |
| 766 | default: |
| 767 | einfo (_("%P%F: use the --help option for usage information\n")); |
| 768 | |
| 769 | case 1: /* File name. */ |
| 770 | lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL); |
| 771 | break; |
| 772 | |
| 773 | case OPTION_IGNORE: |
| 774 | break; |
| 775 | case 'a': |
| 776 | /* For HP/UX compatibility. Actually -a shared should mean |
| 777 | ``use only shared libraries'' but, then, we don't |
| 778 | currently support shared libraries on HP/UX anyhow. */ |
| 779 | if (strcmp (optarg, "archive") == 0) |
| 780 | config.dynamic_link = FALSE; |
| 781 | else if (strcmp (optarg, "shared") == 0 |
| 782 | || strcmp (optarg, "default") == 0) |
| 783 | config.dynamic_link = TRUE; |
| 784 | else |
| 785 | einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg); |
| 786 | break; |
| 787 | case OPTION_ASSERT: |
| 788 | /* FIXME: We just ignore these, but we should handle them. */ |
| 789 | if (strcmp (optarg, "definitions") == 0) |
| 790 | ; |
| 791 | else if (strcmp (optarg, "nodefinitions") == 0) |
| 792 | ; |
| 793 | else if (strcmp (optarg, "nosymbolic") == 0) |
| 794 | ; |
| 795 | else if (strcmp (optarg, "pure-text") == 0) |
| 796 | ; |
| 797 | else |
| 798 | einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg); |
| 799 | break; |
| 800 | case 'A': |
| 801 | ldfile_add_arch (optarg); |
| 802 | break; |
| 803 | case 'b': |
| 804 | lang_add_target (optarg); |
| 805 | break; |
| 806 | case 'c': |
| 807 | ldfile_open_command_file (optarg); |
| 808 | parser_input = input_mri_script; |
| 809 | yyparse (); |
| 810 | break; |
| 811 | case OPTION_CALL_SHARED: |
| 812 | config.dynamic_link = TRUE; |
| 813 | break; |
| 814 | case OPTION_NON_SHARED: |
| 815 | config.dynamic_link = FALSE; |
| 816 | break; |
| 817 | case OPTION_CREF: |
| 818 | command_line.cref = TRUE; |
| 819 | link_info.notice_all = TRUE; |
| 820 | break; |
| 821 | case 'd': |
| 822 | command_line.force_common_definition = TRUE; |
| 823 | break; |
| 824 | case OPTION_DEFSYM: |
| 825 | lex_string = optarg; |
| 826 | lex_redirect (optarg); |
| 827 | parser_input = input_defsym; |
| 828 | parsing_defsym = 1; |
| 829 | yyparse (); |
| 830 | parsing_defsym = 0; |
| 831 | lex_string = NULL; |
| 832 | break; |
| 833 | case OPTION_DEMANGLE: |
| 834 | demangling = TRUE; |
| 835 | if (optarg != NULL) |
| 836 | { |
| 837 | enum demangling_styles style; |
| 838 | |
| 839 | style = cplus_demangle_name_to_style (optarg); |
| 840 | if (style == unknown_demangling) |
| 841 | einfo (_("%F%P: unknown demangling style `%s'"), |
| 842 | optarg); |
| 843 | |
| 844 | cplus_demangle_set_style (style); |
| 845 | } |
| 846 | break; |
| 847 | case 'I': /* Used on Solaris. */ |
| 848 | case OPTION_DYNAMIC_LINKER: |
| 849 | command_line.interpreter = optarg; |
| 850 | break; |
| 851 | case OPTION_SYSROOT: |
| 852 | /* Already handled in ldmain.c. */ |
| 853 | break; |
| 854 | case OPTION_EB: |
| 855 | command_line.endian = ENDIAN_BIG; |
| 856 | break; |
| 857 | case OPTION_EL: |
| 858 | command_line.endian = ENDIAN_LITTLE; |
| 859 | break; |
| 860 | case OPTION_EMBEDDED_RELOCS: |
| 861 | command_line.embedded_relocs = TRUE; |
| 862 | break; |
| 863 | case OPTION_EXPORT_DYNAMIC: |
| 864 | case 'E': /* HP/UX compatibility. */ |
| 865 | link_info.export_dynamic = TRUE; |
| 866 | break; |
| 867 | case OPTION_NO_EXPORT_DYNAMIC: |
| 868 | link_info.export_dynamic = FALSE; |
| 869 | break; |
| 870 | case 'e': |
| 871 | lang_add_entry (optarg, TRUE); |
| 872 | break; |
| 873 | case 'f': |
| 874 | if (command_line.auxiliary_filters == NULL) |
| 875 | { |
| 876 | command_line.auxiliary_filters = (char **) |
| 877 | xmalloc (2 * sizeof (char *)); |
| 878 | command_line.auxiliary_filters[0] = optarg; |
| 879 | command_line.auxiliary_filters[1] = NULL; |
| 880 | } |
| 881 | else |
| 882 | { |
| 883 | int c; |
| 884 | char **p; |
| 885 | |
| 886 | c = 0; |
| 887 | for (p = command_line.auxiliary_filters; *p != NULL; p++) |
| 888 | ++c; |
| 889 | command_line.auxiliary_filters = (char **) |
| 890 | xrealloc (command_line.auxiliary_filters, |
| 891 | (c + 2) * sizeof (char *)); |
| 892 | command_line.auxiliary_filters[c] = optarg; |
| 893 | command_line.auxiliary_filters[c + 1] = NULL; |
| 894 | } |
| 895 | break; |
| 896 | case 'F': |
| 897 | command_line.filter_shlib = optarg; |
| 898 | break; |
| 899 | case OPTION_FORCE_EXE_SUFFIX: |
| 900 | command_line.force_exe_suffix = TRUE; |
| 901 | break; |
| 902 | case 'G': |
| 903 | { |
| 904 | char *end; |
| 905 | g_switch_value = strtoul (optarg, &end, 0); |
| 906 | if (*end) |
| 907 | einfo (_("%P%F: invalid number `%s'\n"), optarg); |
| 908 | } |
| 909 | break; |
| 910 | case 'g': |
| 911 | /* Ignore. */ |
| 912 | break; |
| 913 | case OPTION_GC_SECTIONS: |
| 914 | link_info.gc_sections = TRUE; |
| 915 | break; |
| 916 | case OPTION_PRINT_GC_SECTIONS: |
| 917 | link_info.print_gc_sections = TRUE; |
| 918 | break; |
| 919 | case OPTION_HELP: |
| 920 | help (); |
| 921 | xexit (0); |
| 922 | break; |
| 923 | case 'L': |
| 924 | ldfile_add_library_path (optarg, TRUE); |
| 925 | break; |
| 926 | case 'l': |
| 927 | lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL); |
| 928 | break; |
| 929 | case 'M': |
| 930 | config.map_filename = "-"; |
| 931 | break; |
| 932 | case 'm': |
| 933 | /* Ignore. Was handled in a pre-parse. */ |
| 934 | break; |
| 935 | case OPTION_MAP: |
| 936 | config.map_filename = optarg; |
| 937 | break; |
| 938 | case 'N': |
| 939 | config.text_read_only = FALSE; |
| 940 | config.magic_demand_paged = FALSE; |
| 941 | config.dynamic_link = FALSE; |
| 942 | break; |
| 943 | case OPTION_NO_OMAGIC: |
| 944 | config.text_read_only = TRUE; |
| 945 | config.magic_demand_paged = TRUE; |
| 946 | /* NB/ Does not set dynamic_link to TRUE. |
| 947 | Use --call-shared or -Bdynamic for this. */ |
| 948 | break; |
| 949 | case 'n': |
| 950 | config.magic_demand_paged = FALSE; |
| 951 | config.dynamic_link = FALSE; |
| 952 | break; |
| 953 | case OPTION_NO_DEFINE_COMMON: |
| 954 | command_line.inhibit_common_definition = TRUE; |
| 955 | break; |
| 956 | case OPTION_NO_DEMANGLE: |
| 957 | demangling = FALSE; |
| 958 | break; |
| 959 | case OPTION_NO_GC_SECTIONS: |
| 960 | link_info.gc_sections = FALSE; |
| 961 | break; |
| 962 | case OPTION_NO_PRINT_GC_SECTIONS: |
| 963 | link_info.print_gc_sections = FALSE; |
| 964 | break; |
| 965 | case OPTION_NO_KEEP_MEMORY: |
| 966 | link_info.keep_memory = FALSE; |
| 967 | break; |
| 968 | case OPTION_NO_UNDEFINED: |
| 969 | link_info.unresolved_syms_in_objects |
| 970 | = how_to_report_unresolved_symbols; |
| 971 | break; |
| 972 | case OPTION_ALLOW_SHLIB_UNDEFINED: |
| 973 | link_info.unresolved_syms_in_shared_libs = RM_IGNORE; |
| 974 | break; |
| 975 | case OPTION_NO_ALLOW_SHLIB_UNDEFINED: |
| 976 | link_info.unresolved_syms_in_shared_libs |
| 977 | = how_to_report_unresolved_symbols; |
| 978 | break; |
| 979 | case OPTION_UNRESOLVED_SYMBOLS: |
| 980 | if (strcmp (optarg, "ignore-all") == 0) |
| 981 | { |
| 982 | link_info.unresolved_syms_in_objects = RM_IGNORE; |
| 983 | link_info.unresolved_syms_in_shared_libs = RM_IGNORE; |
| 984 | } |
| 985 | else if (strcmp (optarg, "report-all") == 0) |
| 986 | { |
| 987 | link_info.unresolved_syms_in_objects |
| 988 | = how_to_report_unresolved_symbols; |
| 989 | link_info.unresolved_syms_in_shared_libs |
| 990 | = how_to_report_unresolved_symbols; |
| 991 | } |
| 992 | else if (strcmp (optarg, "ignore-in-object-files") == 0) |
| 993 | { |
| 994 | link_info.unresolved_syms_in_objects = RM_IGNORE; |
| 995 | link_info.unresolved_syms_in_shared_libs |
| 996 | = how_to_report_unresolved_symbols; |
| 997 | } |
| 998 | else if (strcmp (optarg, "ignore-in-shared-libs") == 0) |
| 999 | { |
| 1000 | link_info.unresolved_syms_in_objects |
| 1001 | = how_to_report_unresolved_symbols; |
| 1002 | link_info.unresolved_syms_in_shared_libs = RM_IGNORE; |
| 1003 | } |
| 1004 | else |
| 1005 | einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg); |
| 1006 | break; |
| 1007 | case OPTION_WARN_UNRESOLVED_SYMBOLS: |
| 1008 | how_to_report_unresolved_symbols = RM_GENERATE_WARNING; |
| 1009 | if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR) |
| 1010 | link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING; |
| 1011 | if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR) |
| 1012 | link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING; |
| 1013 | break; |
| 1014 | |
| 1015 | case OPTION_ERROR_UNRESOLVED_SYMBOLS: |
| 1016 | how_to_report_unresolved_symbols = RM_GENERATE_ERROR; |
| 1017 | if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING) |
| 1018 | link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; |
| 1019 | if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING) |
| 1020 | link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR; |
| 1021 | break; |
| 1022 | case OPTION_ALLOW_MULTIPLE_DEFINITION: |
| 1023 | link_info.allow_multiple_definition = TRUE; |
| 1024 | break; |
| 1025 | case OPTION_NO_UNDEFINED_VERSION: |
| 1026 | link_info.allow_undefined_version = FALSE; |
| 1027 | break; |
| 1028 | case OPTION_DEFAULT_SYMVER: |
| 1029 | link_info.create_default_symver = TRUE; |
| 1030 | break; |
| 1031 | case OPTION_DEFAULT_IMPORTED_SYMVER: |
| 1032 | link_info.default_imported_symver = TRUE; |
| 1033 | break; |
| 1034 | case OPTION_NO_WARN_MISMATCH: |
| 1035 | command_line.warn_mismatch = FALSE; |
| 1036 | break; |
| 1037 | case OPTION_NO_WARN_SEARCH_MISMATCH: |
| 1038 | command_line.warn_search_mismatch = FALSE; |
| 1039 | break; |
| 1040 | case OPTION_NOINHIBIT_EXEC: |
| 1041 | force_make_executable = TRUE; |
| 1042 | break; |
| 1043 | case OPTION_NOSTDLIB: |
| 1044 | config.only_cmd_line_lib_dirs = TRUE; |
| 1045 | break; |
| 1046 | case OPTION_NO_WHOLE_ARCHIVE: |
| 1047 | whole_archive = FALSE; |
| 1048 | break; |
| 1049 | case 'O': |
| 1050 | /* FIXME "-O<non-digits> <value>" used to set the address of |
| 1051 | section <non-digits>. Was this for compatibility with |
| 1052 | something, or can we create a new option to do that |
| 1053 | (with a syntax similar to -defsym)? |
| 1054 | getopt can't handle two args to an option without kludges. */ |
| 1055 | |
| 1056 | /* Enable optimizations of output files. */ |
| 1057 | link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE; |
| 1058 | break; |
| 1059 | case 'o': |
| 1060 | lang_add_output (optarg, 0); |
| 1061 | break; |
| 1062 | case OPTION_OFORMAT: |
| 1063 | lang_add_output_format (optarg, NULL, NULL, 0); |
| 1064 | break; |
| 1065 | case OPTION_PRINT_OUTPUT_FORMAT: |
| 1066 | command_line.print_output_format = TRUE; |
| 1067 | break; |
| 1068 | #ifdef ENABLE_PLUGINS |
| 1069 | case OPTION_PLUGIN: |
| 1070 | if (plugin_opt_plugin (optarg)) |
| 1071 | einfo (_("%P%F: %s: error loading plugin\n"), |
| 1072 | plugin_error_plugin ()); |
| 1073 | break; |
| 1074 | case OPTION_PLUGIN_OPT: |
| 1075 | if (plugin_opt_plugin_arg (optarg)) |
| 1076 | einfo(_("%P%F: bad -plugin-opt option\n")); |
| 1077 | break; |
| 1078 | #endif /* ENABLE_PLUGINS */ |
| 1079 | case 'q': |
| 1080 | link_info.emitrelocations = TRUE; |
| 1081 | break; |
| 1082 | case 'i': |
| 1083 | case 'r': |
| 1084 | if (optind == last_optind) |
| 1085 | /* This can happen if the user put "-rpath,a" on the command |
| 1086 | line. (Or something similar. The comma is important). |
| 1087 | Getopt becomes confused and thinks that this is a -r option |
| 1088 | but it cannot parse the text after the -r so it refuses to |
| 1089 | increment the optind counter. Detect this case and issue |
| 1090 | an error message here. We cannot just make this a warning, |
| 1091 | increment optind, and continue because getopt is too confused |
| 1092 | and will seg-fault the next time around. */ |
| 1093 | einfo(_("%P%F: bad -rpath option\n")); |
| 1094 | |
| 1095 | link_info.relocatable = TRUE; |
| 1096 | config.build_constructors = FALSE; |
| 1097 | config.magic_demand_paged = FALSE; |
| 1098 | config.text_read_only = FALSE; |
| 1099 | config.dynamic_link = FALSE; |
| 1100 | break; |
| 1101 | case 'R': |
| 1102 | /* The GNU linker traditionally uses -R to mean to include |
| 1103 | only the symbols from a file. The Solaris linker uses -R |
| 1104 | to set the path used by the runtime linker to find |
| 1105 | libraries. This is the GNU linker -rpath argument. We |
| 1106 | try to support both simultaneously by checking the file |
| 1107 | named. If it is a directory, rather than a regular file, |
| 1108 | we assume -rpath was meant. */ |
| 1109 | { |
| 1110 | struct stat s; |
| 1111 | |
| 1112 | if (stat (optarg, &s) >= 0 |
| 1113 | && ! S_ISDIR (s.st_mode)) |
| 1114 | { |
| 1115 | lang_add_input_file (optarg, |
| 1116 | lang_input_file_is_symbols_only_enum, |
| 1117 | NULL); |
| 1118 | break; |
| 1119 | } |
| 1120 | } |
| 1121 | /* Fall through. */ |
| 1122 | case OPTION_RPATH: |
| 1123 | if (command_line.rpath == NULL) |
| 1124 | command_line.rpath = xstrdup (optarg); |
| 1125 | else |
| 1126 | { |
| 1127 | size_t rpath_len = strlen (command_line.rpath); |
| 1128 | size_t optarg_len = strlen (optarg); |
| 1129 | char *buf; |
| 1130 | char *cp = command_line.rpath; |
| 1131 | |
| 1132 | /* First see whether OPTARG is already in the path. */ |
| 1133 | do |
| 1134 | { |
| 1135 | if (strncmp (optarg, cp, optarg_len) == 0 |
| 1136 | && (cp[optarg_len] == 0 |
| 1137 | || cp[optarg_len] == config.rpath_separator)) |
| 1138 | /* We found it. */ |
| 1139 | break; |
| 1140 | |
| 1141 | /* Not yet found. */ |
| 1142 | cp = strchr (cp, config.rpath_separator); |
| 1143 | if (cp != NULL) |
| 1144 | ++cp; |
| 1145 | } |
| 1146 | while (cp != NULL); |
| 1147 | |
| 1148 | if (cp == NULL) |
| 1149 | { |
| 1150 | buf = (char *) xmalloc (rpath_len + optarg_len + 2); |
| 1151 | sprintf (buf, "%s%c%s", command_line.rpath, |
| 1152 | config.rpath_separator, optarg); |
| 1153 | free (command_line.rpath); |
| 1154 | command_line.rpath = buf; |
| 1155 | } |
| 1156 | } |
| 1157 | break; |
| 1158 | case OPTION_RPATH_LINK: |
| 1159 | if (command_line.rpath_link == NULL) |
| 1160 | command_line.rpath_link = xstrdup (optarg); |
| 1161 | else |
| 1162 | { |
| 1163 | char *buf; |
| 1164 | |
| 1165 | buf = (char *) xmalloc (strlen (command_line.rpath_link) |
| 1166 | + strlen (optarg) |
| 1167 | + 2); |
| 1168 | sprintf (buf, "%s%c%s", command_line.rpath_link, |
| 1169 | config.rpath_separator, optarg); |
| 1170 | free (command_line.rpath_link); |
| 1171 | command_line.rpath_link = buf; |
| 1172 | } |
| 1173 | break; |
| 1174 | case OPTION_NO_RELAX: |
| 1175 | DISABLE_RELAXATION; |
| 1176 | break; |
| 1177 | case OPTION_RELAX: |
| 1178 | ENABLE_RELAXATION; |
| 1179 | break; |
| 1180 | case OPTION_RETAIN_SYMBOLS_FILE: |
| 1181 | add_keepsyms_file (optarg); |
| 1182 | break; |
| 1183 | case 'S': |
| 1184 | link_info.strip = strip_debugger; |
| 1185 | break; |
| 1186 | case 's': |
| 1187 | link_info.strip = strip_all; |
| 1188 | break; |
| 1189 | case OPTION_STRIP_DISCARDED: |
| 1190 | link_info.strip_discarded = TRUE; |
| 1191 | break; |
| 1192 | case OPTION_NO_STRIP_DISCARDED: |
| 1193 | link_info.strip_discarded = FALSE; |
| 1194 | break; |
| 1195 | case OPTION_SHARED: |
| 1196 | if (config.has_shared) |
| 1197 | { |
| 1198 | link_info.shared = TRUE; |
| 1199 | /* When creating a shared library, the default |
| 1200 | behaviour is to ignore any unresolved references. */ |
| 1201 | if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET) |
| 1202 | link_info.unresolved_syms_in_objects = RM_IGNORE; |
| 1203 | if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET) |
| 1204 | link_info.unresolved_syms_in_shared_libs = RM_IGNORE; |
| 1205 | } |
| 1206 | else |
| 1207 | einfo (_("%P%F: -shared not supported\n")); |
| 1208 | break; |
| 1209 | case OPTION_PIE: |
| 1210 | if (config.has_shared) |
| 1211 | { |
| 1212 | link_info.shared = TRUE; |
| 1213 | link_info.pie = TRUE; |
| 1214 | } |
| 1215 | else |
| 1216 | einfo (_("%P%F: -pie not supported\n")); |
| 1217 | break; |
| 1218 | case 'h': /* Used on Solaris. */ |
| 1219 | case OPTION_SONAME: |
| 1220 | command_line.soname = optarg; |
| 1221 | break; |
| 1222 | case OPTION_SORT_COMMON: |
| 1223 | if (optarg == NULL |
| 1224 | || strcmp (optarg, N_("descending")) == 0) |
| 1225 | config.sort_common = sort_descending; |
| 1226 | else if (strcmp (optarg, N_("ascending")) == 0) |
| 1227 | config.sort_common = sort_ascending; |
| 1228 | else |
| 1229 | einfo (_("%P%F: invalid common section sorting option: %s\n"), |
| 1230 | optarg); |
| 1231 | break; |
| 1232 | case OPTION_SORT_SECTION: |
| 1233 | if (strcmp (optarg, N_("name")) == 0) |
| 1234 | sort_section = by_name; |
| 1235 | else if (strcmp (optarg, N_("alignment")) == 0) |
| 1236 | sort_section = by_alignment; |
| 1237 | else |
| 1238 | einfo (_("%P%F: invalid section sorting option: %s\n"), |
| 1239 | optarg); |
| 1240 | break; |
| 1241 | case OPTION_STATS: |
| 1242 | config.stats = TRUE; |
| 1243 | break; |
| 1244 | case OPTION_SYMBOLIC: |
| 1245 | command_line.symbolic = symbolic; |
| 1246 | break; |
| 1247 | case OPTION_SYMBOLIC_FUNCTIONS: |
| 1248 | command_line.symbolic = symbolic_functions; |
| 1249 | break; |
| 1250 | case 't': |
| 1251 | trace_files = TRUE; |
| 1252 | break; |
| 1253 | case 'T': |
| 1254 | previous_script_handle = saved_script_handle; |
| 1255 | ldfile_open_command_file (optarg); |
| 1256 | parser_input = input_script; |
| 1257 | yyparse (); |
| 1258 | previous_script_handle = NULL; |
| 1259 | break; |
| 1260 | case OPTION_DEFAULT_SCRIPT: |
| 1261 | command_line.default_script = optarg; |
| 1262 | break; |
| 1263 | case OPTION_SECTION_START: |
| 1264 | { |
| 1265 | char *optarg2; |
| 1266 | char *sec_name; |
| 1267 | int len; |
| 1268 | |
| 1269 | /* Check for <something>=<somthing>... */ |
| 1270 | optarg2 = strchr (optarg, '='); |
| 1271 | if (optarg2 == NULL) |
| 1272 | einfo (_("%P%F: invalid argument to option" |
| 1273 | " \"--section-start\"\n")); |
| 1274 | |
| 1275 | optarg2++; |
| 1276 | |
| 1277 | /* So far so good. Are all the args present? */ |
| 1278 | if ((*optarg == '\0') || (*optarg2 == '\0')) |
| 1279 | einfo (_("%P%F: missing argument(s) to option" |
| 1280 | " \"--section-start\"\n")); |
| 1281 | |
| 1282 | /* We must copy the section name as set_section_start |
| 1283 | doesn't do it for us. */ |
| 1284 | len = optarg2 - optarg; |
| 1285 | sec_name = (char *) xmalloc (len); |
| 1286 | memcpy (sec_name, optarg, len - 1); |
| 1287 | sec_name[len - 1] = 0; |
| 1288 | |
| 1289 | /* Then set it... */ |
| 1290 | set_section_start (sec_name, optarg2); |
| 1291 | } |
| 1292 | break; |
| 1293 | case OPTION_TARGET_HELP: |
| 1294 | /* Mention any target specific options. */ |
| 1295 | ldemul_list_emulation_options (stdout); |
| 1296 | exit (0); |
| 1297 | case OPTION_TBSS: |
| 1298 | set_segment_start (".bss", optarg); |
| 1299 | break; |
| 1300 | case OPTION_TDATA: |
| 1301 | set_segment_start (".data", optarg); |
| 1302 | break; |
| 1303 | case OPTION_TTEXT: |
| 1304 | set_segment_start (".text", optarg); |
| 1305 | break; |
| 1306 | case OPTION_TTEXT_SEGMENT: |
| 1307 | set_segment_start (".text-segment", optarg); |
| 1308 | break; |
| 1309 | case OPTION_TRADITIONAL_FORMAT: |
| 1310 | link_info.traditional_format = TRUE; |
| 1311 | break; |
| 1312 | case OPTION_TASK_LINK: |
| 1313 | link_info.task_link = TRUE; |
| 1314 | /* Fall through - do an implied -r option. */ |
| 1315 | case OPTION_UR: |
| 1316 | link_info.relocatable = TRUE; |
| 1317 | config.build_constructors = TRUE; |
| 1318 | config.magic_demand_paged = FALSE; |
| 1319 | config.text_read_only = FALSE; |
| 1320 | config.dynamic_link = FALSE; |
| 1321 | break; |
| 1322 | case 'u': |
| 1323 | ldlang_add_undef (optarg, TRUE); |
| 1324 | break; |
| 1325 | case OPTION_UNIQUE: |
| 1326 | if (optarg != NULL) |
| 1327 | lang_add_unique (optarg); |
| 1328 | else |
| 1329 | config.unique_orphan_sections = TRUE; |
| 1330 | break; |
| 1331 | case OPTION_VERBOSE: |
| 1332 | ldversion (1); |
| 1333 | version_printed = TRUE; |
| 1334 | trace_file_tries = TRUE; |
| 1335 | overflow_cutoff_limit = -2; |
| 1336 | if (optarg != NULL) |
| 1337 | { |
| 1338 | char *end; |
| 1339 | int level ATTRIBUTE_UNUSED = strtoul (optarg, &end, 0); |
| 1340 | if (*end) |
| 1341 | einfo (_("%P%F: invalid number `%s'\n"), optarg); |
| 1342 | #ifdef ENABLE_PLUGINS |
| 1343 | report_plugin_symbols = level > 1; |
| 1344 | #endif /* ENABLE_PLUGINS */ |
| 1345 | } |
| 1346 | break; |
| 1347 | case 'v': |
| 1348 | ldversion (0); |
| 1349 | version_printed = TRUE; |
| 1350 | break; |
| 1351 | case 'V': |
| 1352 | ldversion (1); |
| 1353 | version_printed = TRUE; |
| 1354 | break; |
| 1355 | case OPTION_VERSION: |
| 1356 | ldversion (2); |
| 1357 | xexit (0); |
| 1358 | break; |
| 1359 | case OPTION_VERSION_SCRIPT: |
| 1360 | /* This option indicates a small script that only specifies |
| 1361 | version information. Read it, but don't assume that |
| 1362 | we've seen a linker script. */ |
| 1363 | { |
| 1364 | FILE *hold_script_handle; |
| 1365 | |
| 1366 | hold_script_handle = saved_script_handle; |
| 1367 | ldfile_open_command_file (optarg); |
| 1368 | saved_script_handle = hold_script_handle; |
| 1369 | parser_input = input_version_script; |
| 1370 | yyparse (); |
| 1371 | } |
| 1372 | break; |
| 1373 | case OPTION_VERSION_EXPORTS_SECTION: |
| 1374 | /* This option records a version symbol to be applied to the |
| 1375 | symbols listed for export to be found in the object files |
| 1376 | .exports sections. */ |
| 1377 | command_line.version_exports_section = optarg; |
| 1378 | break; |
| 1379 | case OPTION_DYNAMIC_LIST_DATA: |
| 1380 | command_line.dynamic_list = dynamic_list_data; |
| 1381 | if (command_line.symbolic == symbolic) |
| 1382 | command_line.symbolic = symbolic_unset; |
| 1383 | break; |
| 1384 | case OPTION_DYNAMIC_LIST_CPP_TYPEINFO: |
| 1385 | lang_append_dynamic_list_cpp_typeinfo (); |
| 1386 | if (command_line.dynamic_list != dynamic_list_data) |
| 1387 | command_line.dynamic_list = dynamic_list; |
| 1388 | if (command_line.symbolic == symbolic) |
| 1389 | command_line.symbolic = symbolic_unset; |
| 1390 | break; |
| 1391 | case OPTION_DYNAMIC_LIST_CPP_NEW: |
| 1392 | lang_append_dynamic_list_cpp_new (); |
| 1393 | if (command_line.dynamic_list != dynamic_list_data) |
| 1394 | command_line.dynamic_list = dynamic_list; |
| 1395 | if (command_line.symbolic == symbolic) |
| 1396 | command_line.symbolic = symbolic_unset; |
| 1397 | break; |
| 1398 | case OPTION_DYNAMIC_LIST: |
| 1399 | /* This option indicates a small script that only specifies |
| 1400 | a dynamic list. Read it, but don't assume that we've |
| 1401 | seen a linker script. */ |
| 1402 | { |
| 1403 | FILE *hold_script_handle; |
| 1404 | |
| 1405 | hold_script_handle = saved_script_handle; |
| 1406 | ldfile_open_command_file (optarg); |
| 1407 | saved_script_handle = hold_script_handle; |
| 1408 | parser_input = input_dynamic_list; |
| 1409 | yyparse (); |
| 1410 | } |
| 1411 | if (command_line.dynamic_list != dynamic_list_data) |
| 1412 | command_line.dynamic_list = dynamic_list; |
| 1413 | if (command_line.symbolic == symbolic) |
| 1414 | command_line.symbolic = symbolic_unset; |
| 1415 | break; |
| 1416 | case OPTION_WARN_COMMON: |
| 1417 | config.warn_common = TRUE; |
| 1418 | break; |
| 1419 | case OPTION_WARN_CONSTRUCTORS: |
| 1420 | config.warn_constructors = TRUE; |
| 1421 | break; |
| 1422 | case OPTION_WARN_FATAL: |
| 1423 | config.fatal_warnings = TRUE; |
| 1424 | break; |
| 1425 | case OPTION_NO_WARN_FATAL: |
| 1426 | config.fatal_warnings = FALSE; |
| 1427 | break; |
| 1428 | case OPTION_WARN_MULTIPLE_GP: |
| 1429 | config.warn_multiple_gp = TRUE; |
| 1430 | break; |
| 1431 | case OPTION_WARN_ONCE: |
| 1432 | config.warn_once = TRUE; |
| 1433 | break; |
| 1434 | case OPTION_WARN_SECTION_ALIGN: |
| 1435 | config.warn_section_align = TRUE; |
| 1436 | break; |
| 1437 | case OPTION_WARN_SHARED_TEXTREL: |
| 1438 | link_info.warn_shared_textrel = TRUE; |
| 1439 | break; |
| 1440 | case OPTION_WARN_ALTERNATE_EM: |
| 1441 | link_info.warn_alternate_em = TRUE; |
| 1442 | break; |
| 1443 | case OPTION_WHOLE_ARCHIVE: |
| 1444 | whole_archive = TRUE; |
| 1445 | break; |
| 1446 | case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC: |
| 1447 | add_DT_NEEDED_for_dynamic = TRUE; |
| 1448 | break; |
| 1449 | case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC: |
| 1450 | add_DT_NEEDED_for_dynamic = FALSE; |
| 1451 | break; |
| 1452 | case OPTION_ADD_DT_NEEDED_FOR_REGULAR: |
| 1453 | add_DT_NEEDED_for_regular = TRUE; |
| 1454 | break; |
| 1455 | case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR: |
| 1456 | add_DT_NEEDED_for_regular = FALSE; |
| 1457 | break; |
| 1458 | case OPTION_WRAP: |
| 1459 | add_wrap (optarg); |
| 1460 | break; |
| 1461 | case OPTION_DISCARD_NONE: |
| 1462 | link_info.discard = discard_none; |
| 1463 | break; |
| 1464 | case 'X': |
| 1465 | link_info.discard = discard_l; |
| 1466 | break; |
| 1467 | case 'x': |
| 1468 | link_info.discard = discard_all; |
| 1469 | break; |
| 1470 | case 'Y': |
| 1471 | if (CONST_STRNEQ (optarg, "P,")) |
| 1472 | optarg += 2; |
| 1473 | if (default_dirlist != NULL) |
| 1474 | free (default_dirlist); |
| 1475 | default_dirlist = xstrdup (optarg); |
| 1476 | break; |
| 1477 | case 'y': |
| 1478 | add_ysym (optarg); |
| 1479 | break; |
| 1480 | case OPTION_SPARE_DYNAMIC_TAGS: |
| 1481 | link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0); |
| 1482 | break; |
| 1483 | case OPTION_SPLIT_BY_RELOC: |
| 1484 | if (optarg != NULL) |
| 1485 | config.split_by_reloc = strtoul (optarg, NULL, 0); |
| 1486 | else |
| 1487 | config.split_by_reloc = 32768; |
| 1488 | break; |
| 1489 | case OPTION_SPLIT_BY_FILE: |
| 1490 | if (optarg != NULL) |
| 1491 | config.split_by_file = bfd_scan_vma (optarg, NULL, 0); |
| 1492 | else |
| 1493 | config.split_by_file = 1; |
| 1494 | break; |
| 1495 | case OPTION_CHECK_SECTIONS: |
| 1496 | command_line.check_section_addresses = 1; |
| 1497 | break; |
| 1498 | case OPTION_NO_CHECK_SECTIONS: |
| 1499 | command_line.check_section_addresses = 0; |
| 1500 | break; |
| 1501 | case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH: |
| 1502 | command_line.accept_unknown_input_arch = TRUE; |
| 1503 | break; |
| 1504 | case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH: |
| 1505 | command_line.accept_unknown_input_arch = FALSE; |
| 1506 | break; |
| 1507 | case '(': |
| 1508 | lang_enter_group (); |
| 1509 | ingroup++; |
| 1510 | break; |
| 1511 | case ')': |
| 1512 | if (! ingroup) |
| 1513 | einfo (_("%P%F: group ended before it began (--help for usage)\n")); |
| 1514 | |
| 1515 | lang_leave_group (); |
| 1516 | ingroup--; |
| 1517 | break; |
| 1518 | |
| 1519 | case OPTION_INIT: |
| 1520 | link_info.init_function = optarg; |
| 1521 | break; |
| 1522 | |
| 1523 | case OPTION_FINI: |
| 1524 | link_info.fini_function = optarg; |
| 1525 | break; |
| 1526 | |
| 1527 | case OPTION_REDUCE_MEMORY_OVERHEADS: |
| 1528 | link_info.reduce_memory_overheads = TRUE; |
| 1529 | if (config.hash_table_size == 0) |
| 1530 | config.hash_table_size = 1021; |
| 1531 | break; |
| 1532 | |
| 1533 | case OPTION_HASH_SIZE: |
| 1534 | { |
| 1535 | bfd_size_type new_size; |
| 1536 | |
| 1537 | new_size = strtoul (optarg, NULL, 0); |
| 1538 | if (new_size) |
| 1539 | config.hash_table_size = new_size; |
| 1540 | else |
| 1541 | einfo (_("%P%X: --hash-size needs a numeric argument\n")); |
| 1542 | } |
| 1543 | break; |
| 1544 | } |
| 1545 | } |
| 1546 | |
| 1547 | while (ingroup) |
| 1548 | { |
| 1549 | lang_leave_group (); |
| 1550 | ingroup--; |
| 1551 | } |
| 1552 | |
| 1553 | if (default_dirlist != NULL) |
| 1554 | { |
| 1555 | set_default_dirlist (default_dirlist); |
| 1556 | free (default_dirlist); |
| 1557 | } |
| 1558 | |
| 1559 | if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET) |
| 1560 | /* FIXME: Should we allow emulations a chance to set this ? */ |
| 1561 | link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols; |
| 1562 | |
| 1563 | if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET) |
| 1564 | /* FIXME: Should we allow emulations a chance to set this ? */ |
| 1565 | link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols; |
| 1566 | |
| 1567 | if (link_info.relocatable) |
| 1568 | { |
| 1569 | if (command_line.check_section_addresses < 0) |
| 1570 | command_line.check_section_addresses = 0; |
| 1571 | if (link_info.shared) |
| 1572 | einfo (_("%P%F: -r and -shared may not be used together\n")); |
| 1573 | } |
| 1574 | |
| 1575 | /* We may have -Bsymbolic, -Bsymbolic-functions, --dynamic-list-data, |
| 1576 | --dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo and |
| 1577 | --dynamic-list FILE. -Bsymbolic and -Bsymbolic-functions are |
| 1578 | for shared libraries. -Bsymbolic overrides all others and vice |
| 1579 | versa. */ |
| 1580 | switch (command_line.symbolic) |
| 1581 | { |
| 1582 | case symbolic_unset: |
| 1583 | break; |
| 1584 | case symbolic: |
| 1585 | /* -Bsymbolic is for shared library only. */ |
| 1586 | if (link_info.shared) |
| 1587 | { |
| 1588 | link_info.symbolic = TRUE; |
| 1589 | /* Should we free the unused memory? */ |
| 1590 | link_info.dynamic_list = NULL; |
| 1591 | command_line.dynamic_list = dynamic_list_unset; |
| 1592 | } |
| 1593 | break; |
| 1594 | case symbolic_functions: |
| 1595 | /* -Bsymbolic-functions is for shared library only. */ |
| 1596 | if (link_info.shared) |
| 1597 | command_line.dynamic_list = dynamic_list_data; |
| 1598 | break; |
| 1599 | } |
| 1600 | |
| 1601 | switch (command_line.dynamic_list) |
| 1602 | { |
| 1603 | case dynamic_list_unset: |
| 1604 | break; |
| 1605 | case dynamic_list_data: |
| 1606 | link_info.dynamic_data = TRUE; |
| 1607 | case dynamic_list: |
| 1608 | link_info.dynamic = TRUE; |
| 1609 | break; |
| 1610 | } |
| 1611 | |
| 1612 | if (! link_info.shared) |
| 1613 | { |
| 1614 | if (command_line.filter_shlib) |
| 1615 | einfo (_("%P%F: -F may not be used without -shared\n")); |
| 1616 | if (command_line.auxiliary_filters) |
| 1617 | einfo (_("%P%F: -f may not be used without -shared\n")); |
| 1618 | } |
| 1619 | |
| 1620 | if (! link_info.shared || link_info.pie) |
| 1621 | link_info.executable = TRUE; |
| 1622 | |
| 1623 | /* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I |
| 1624 | don't see how else this can be handled, since in this case we |
| 1625 | must preserve all externally visible symbols. */ |
| 1626 | if (link_info.relocatable && link_info.strip == strip_all) |
| 1627 | { |
| 1628 | link_info.strip = strip_debugger; |
| 1629 | if (link_info.discard == discard_sec_merge) |
| 1630 | link_info.discard = discard_all; |
| 1631 | } |
| 1632 | } |
| 1633 | |
| 1634 | /* Add the (colon-separated) elements of DIRLIST_PTR to the |
| 1635 | library search path. */ |
| 1636 | |
| 1637 | static void |
| 1638 | set_default_dirlist (char *dirlist_ptr) |
| 1639 | { |
| 1640 | char *p; |
| 1641 | |
| 1642 | while (1) |
| 1643 | { |
| 1644 | p = strchr (dirlist_ptr, PATH_SEPARATOR); |
| 1645 | if (p != NULL) |
| 1646 | *p = '\0'; |
| 1647 | if (*dirlist_ptr != '\0') |
| 1648 | ldfile_add_library_path (dirlist_ptr, TRUE); |
| 1649 | if (p == NULL) |
| 1650 | break; |
| 1651 | dirlist_ptr = p + 1; |
| 1652 | } |
| 1653 | } |
| 1654 | |
| 1655 | static void |
| 1656 | set_section_start (char *sect, char *valstr) |
| 1657 | { |
| 1658 | const char *end; |
| 1659 | bfd_vma val = bfd_scan_vma (valstr, &end, 16); |
| 1660 | if (*end) |
| 1661 | einfo (_("%P%F: invalid hex number `%s'\n"), valstr); |
| 1662 | lang_section_start (sect, exp_intop (val), NULL); |
| 1663 | } |
| 1664 | |
| 1665 | static void |
| 1666 | set_segment_start (const char *section, char *valstr) |
| 1667 | { |
| 1668 | const char *name; |
| 1669 | const char *end; |
| 1670 | segment_type *seg; |
| 1671 | |
| 1672 | bfd_vma val = bfd_scan_vma (valstr, &end, 16); |
| 1673 | if (*end) |
| 1674 | einfo (_("%P%F: invalid hex number `%s'\n"), valstr); |
| 1675 | /* If we already have an entry for this segment, update the existing |
| 1676 | value. */ |
| 1677 | name = section + 1; |
| 1678 | for (seg = segments; seg; seg = seg->next) |
| 1679 | if (strcmp (seg->name, name) == 0) |
| 1680 | { |
| 1681 | seg->value = val; |
| 1682 | return; |
| 1683 | } |
| 1684 | /* There was no existing value so we must create a new segment |
| 1685 | entry. */ |
| 1686 | seg = (segment_type *) stat_alloc (sizeof (*seg)); |
| 1687 | seg->name = name; |
| 1688 | seg->value = val; |
| 1689 | seg->used = FALSE; |
| 1690 | /* Add it to the linked list of segments. */ |
| 1691 | seg->next = segments; |
| 1692 | segments = seg; |
| 1693 | /* Historically, -Ttext and friends set the base address of a |
| 1694 | particular section. For backwards compatibility, we still do |
| 1695 | that. If a SEGMENT_START directive is seen, the section address |
| 1696 | assignment will be disabled. */ |
| 1697 | lang_section_start (section, exp_intop (val), seg); |
| 1698 | } |
| 1699 | |
| 1700 | \f |
| 1701 | /* Print help messages for the options. */ |
| 1702 | |
| 1703 | static void |
| 1704 | help (void) |
| 1705 | { |
| 1706 | unsigned i; |
| 1707 | const char **targets, **pp; |
| 1708 | int len; |
| 1709 | |
| 1710 | printf (_("Usage: %s [options] file...\n"), program_name); |
| 1711 | |
| 1712 | printf (_("Options:\n")); |
| 1713 | for (i = 0; i < OPTION_COUNT; i++) |
| 1714 | { |
| 1715 | if (ld_options[i].doc != NULL) |
| 1716 | { |
| 1717 | bfd_boolean comma; |
| 1718 | unsigned j; |
| 1719 | |
| 1720 | printf (" "); |
| 1721 | |
| 1722 | comma = FALSE; |
| 1723 | len = 2; |
| 1724 | |
| 1725 | j = i; |
| 1726 | do |
| 1727 | { |
| 1728 | if (ld_options[j].shortopt != '\0' |
| 1729 | && ld_options[j].control != NO_HELP) |
| 1730 | { |
| 1731 | printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt); |
| 1732 | len += (comma ? 2 : 0) + 2; |
| 1733 | if (ld_options[j].arg != NULL) |
| 1734 | { |
| 1735 | if (ld_options[j].opt.has_arg != optional_argument) |
| 1736 | { |
| 1737 | printf (" "); |
| 1738 | ++len; |
| 1739 | } |
| 1740 | printf ("%s", _(ld_options[j].arg)); |
| 1741 | len += strlen (_(ld_options[j].arg)); |
| 1742 | } |
| 1743 | comma = TRUE; |
| 1744 | } |
| 1745 | ++j; |
| 1746 | } |
| 1747 | while (j < OPTION_COUNT && ld_options[j].doc == NULL); |
| 1748 | |
| 1749 | j = i; |
| 1750 | do |
| 1751 | { |
| 1752 | if (ld_options[j].opt.name != NULL |
| 1753 | && ld_options[j].control != NO_HELP) |
| 1754 | { |
| 1755 | int two_dashes = |
| 1756 | (ld_options[j].control == TWO_DASHES |
| 1757 | || ld_options[j].control == EXACTLY_TWO_DASHES); |
| 1758 | |
| 1759 | printf ("%s-%s%s", |
| 1760 | comma ? ", " : "", |
| 1761 | two_dashes ? "-" : "", |
| 1762 | ld_options[j].opt.name); |
| 1763 | len += ((comma ? 2 : 0) |
| 1764 | + 1 |
| 1765 | + (two_dashes ? 1 : 0) |
| 1766 | + strlen (ld_options[j].opt.name)); |
| 1767 | if (ld_options[j].arg != NULL) |
| 1768 | { |
| 1769 | printf (" %s", _(ld_options[j].arg)); |
| 1770 | len += 1 + strlen (_(ld_options[j].arg)); |
| 1771 | } |
| 1772 | comma = TRUE; |
| 1773 | } |
| 1774 | ++j; |
| 1775 | } |
| 1776 | while (j < OPTION_COUNT && ld_options[j].doc == NULL); |
| 1777 | |
| 1778 | if (len >= 30) |
| 1779 | { |
| 1780 | printf ("\n"); |
| 1781 | len = 0; |
| 1782 | } |
| 1783 | |
| 1784 | for (; len < 30; len++) |
| 1785 | putchar (' '); |
| 1786 | |
| 1787 | printf ("%s\n", _(ld_options[i].doc)); |
| 1788 | } |
| 1789 | } |
| 1790 | printf (_(" @FILE")); |
| 1791 | for (len = strlen (" @FILE"); len < 30; len++) |
| 1792 | putchar (' '); |
| 1793 | printf (_("Read options from FILE\n")); |
| 1794 | |
| 1795 | /* Note: Various tools (such as libtool) depend upon the |
| 1796 | format of the listings below - do not change them. */ |
| 1797 | /* xgettext:c-format */ |
| 1798 | printf (_("%s: supported targets:"), program_name); |
| 1799 | targets = bfd_target_list (); |
| 1800 | for (pp = targets; *pp != NULL; pp++) |
| 1801 | printf (" %s", *pp); |
| 1802 | free (targets); |
| 1803 | printf ("\n"); |
| 1804 | |
| 1805 | /* xgettext:c-format */ |
| 1806 | printf (_("%s: supported emulations: "), program_name); |
| 1807 | ldemul_list_emulations (stdout); |
| 1808 | printf ("\n"); |
| 1809 | |
| 1810 | /* xgettext:c-format */ |
| 1811 | printf (_("%s: emulation specific options:\n"), program_name); |
| 1812 | ldemul_list_emulation_options (stdout); |
| 1813 | printf ("\n"); |
| 1814 | |
| 1815 | if (REPORT_BUGS_TO[0]) |
| 1816 | printf (_("Report bugs to %s\n"), REPORT_BUGS_TO); |
| 1817 | } |