| 1 | /* Parse options for the GNU linker. |
| 2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
| 3 | 2001, 2002, 2003 |
| 4 | Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of GLD, the Gnu Linker. |
| 7 | |
| 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. |
| 12 | |
| 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. |
| 17 | |
| 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 |
| 20 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
| 21 | 02111-1307, USA. */ |
| 22 | |
| 23 | #include "bfd.h" |
| 24 | #include "sysdep.h" |
| 25 | #include "libiberty.h" |
| 26 | #include <stdio.h> |
| 27 | #include <string.h> |
| 28 | #include "safe-ctype.h" |
| 29 | #include "getopt.h" |
| 30 | #include "bfdlink.h" |
| 31 | #include "ld.h" |
| 32 | #include "ldmain.h" |
| 33 | #include "ldmisc.h" |
| 34 | #include "ldexp.h" |
| 35 | #include "ldlang.h" |
| 36 | #include <ldgram.h> |
| 37 | #include "ldlex.h" |
| 38 | #include "ldfile.h" |
| 39 | #include "ldver.h" |
| 40 | #include "ldemul.h" |
| 41 | #include "demangle.h" |
| 42 | |
| 43 | #ifndef PATH_SEPARATOR |
| 44 | #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) |
| 45 | #define PATH_SEPARATOR ';' |
| 46 | #else |
| 47 | #define PATH_SEPARATOR ':' |
| 48 | #endif |
| 49 | #endif |
| 50 | |
| 51 | /* Somewhere above, sys/stat.h got included . . . . */ |
| 52 | #if !defined(S_ISDIR) && defined(S_IFDIR) |
| 53 | #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) |
| 54 | #endif |
| 55 | |
| 56 | static int is_num PARAMS ((const char *, int, int, int)); |
| 57 | static void set_default_dirlist PARAMS ((char *)); |
| 58 | static void set_section_start PARAMS ((char *, char *)); |
| 59 | static void help PARAMS ((void)); |
| 60 | |
| 61 | /* Non-zero if we are processing a --defsym from the command line. */ |
| 62 | int parsing_defsym = 0; |
| 63 | |
| 64 | /* Codes used for the long options with no short synonyms. 150 isn't |
| 65 | special; it's just an arbitrary non-ASCII char value. */ |
| 66 | |
| 67 | #define OPTION_ASSERT 150 |
| 68 | #define OPTION_CALL_SHARED (OPTION_ASSERT + 1) |
| 69 | #define OPTION_CREF (OPTION_CALL_SHARED + 1) |
| 70 | #define OPTION_DEFSYM (OPTION_CREF + 1) |
| 71 | #define OPTION_DEMANGLE (OPTION_DEFSYM + 1) |
| 72 | #define OPTION_DYNAMIC_LINKER (OPTION_DEMANGLE + 1) |
| 73 | #define OPTION_EB (OPTION_DYNAMIC_LINKER + 1) |
| 74 | #define OPTION_EL (OPTION_EB + 1) |
| 75 | #define OPTION_EMBEDDED_RELOCS (OPTION_EL + 1) |
| 76 | #define OPTION_EXPORT_DYNAMIC (OPTION_EMBEDDED_RELOCS + 1) |
| 77 | #define OPTION_HELP (OPTION_EXPORT_DYNAMIC + 1) |
| 78 | #define OPTION_IGNORE (OPTION_HELP + 1) |
| 79 | #define OPTION_MAP (OPTION_IGNORE + 1) |
| 80 | #define OPTION_NO_DEMANGLE (OPTION_MAP + 1) |
| 81 | #define OPTION_NO_KEEP_MEMORY (OPTION_NO_DEMANGLE + 1) |
| 82 | #define OPTION_NO_WARN_MISMATCH (OPTION_NO_KEEP_MEMORY + 1) |
| 83 | #define OPTION_NOINHIBIT_EXEC (OPTION_NO_WARN_MISMATCH + 1) |
| 84 | #define OPTION_NON_SHARED (OPTION_NOINHIBIT_EXEC + 1) |
| 85 | #define OPTION_NO_WHOLE_ARCHIVE (OPTION_NON_SHARED + 1) |
| 86 | #define OPTION_OFORMAT (OPTION_NO_WHOLE_ARCHIVE + 1) |
| 87 | #define OPTION_RELAX (OPTION_OFORMAT + 1) |
| 88 | #define OPTION_RETAIN_SYMBOLS_FILE (OPTION_RELAX + 1) |
| 89 | #define OPTION_RPATH (OPTION_RETAIN_SYMBOLS_FILE + 1) |
| 90 | #define OPTION_RPATH_LINK (OPTION_RPATH + 1) |
| 91 | #define OPTION_SHARED (OPTION_RPATH_LINK + 1) |
| 92 | #define OPTION_SONAME (OPTION_SHARED + 1) |
| 93 | #define OPTION_SORT_COMMON (OPTION_SONAME + 1) |
| 94 | #define OPTION_STATS (OPTION_SORT_COMMON + 1) |
| 95 | #define OPTION_SYMBOLIC (OPTION_STATS + 1) |
| 96 | #define OPTION_TASK_LINK (OPTION_SYMBOLIC + 1) |
| 97 | #define OPTION_TBSS (OPTION_TASK_LINK + 1) |
| 98 | #define OPTION_TDATA (OPTION_TBSS + 1) |
| 99 | #define OPTION_TTEXT (OPTION_TDATA + 1) |
| 100 | #define OPTION_TRADITIONAL_FORMAT (OPTION_TTEXT + 1) |
| 101 | #define OPTION_UR (OPTION_TRADITIONAL_FORMAT + 1) |
| 102 | #define OPTION_VERBOSE (OPTION_UR + 1) |
| 103 | #define OPTION_VERSION (OPTION_VERBOSE + 1) |
| 104 | #define OPTION_VERSION_SCRIPT (OPTION_VERSION + 1) |
| 105 | #define OPTION_VERSION_EXPORTS_SECTION (OPTION_VERSION_SCRIPT + 1) |
| 106 | #define OPTION_WARN_COMMON (OPTION_VERSION_EXPORTS_SECTION + 1) |
| 107 | #define OPTION_WARN_CONSTRUCTORS (OPTION_WARN_COMMON + 1) |
| 108 | #define OPTION_WARN_FATAL (OPTION_WARN_CONSTRUCTORS + 1) |
| 109 | #define OPTION_WARN_MULTIPLE_GP (OPTION_WARN_FATAL + 1) |
| 110 | #define OPTION_WARN_ONCE (OPTION_WARN_MULTIPLE_GP + 1) |
| 111 | #define OPTION_WARN_SECTION_ALIGN (OPTION_WARN_ONCE + 1) |
| 112 | #define OPTION_SPLIT_BY_RELOC (OPTION_WARN_SECTION_ALIGN + 1) |
| 113 | #define OPTION_SPLIT_BY_FILE (OPTION_SPLIT_BY_RELOC + 1) |
| 114 | #define OPTION_WHOLE_ARCHIVE (OPTION_SPLIT_BY_FILE + 1) |
| 115 | #define OPTION_WRAP (OPTION_WHOLE_ARCHIVE + 1) |
| 116 | #define OPTION_FORCE_EXE_SUFFIX (OPTION_WRAP + 1) |
| 117 | #define OPTION_GC_SECTIONS (OPTION_FORCE_EXE_SUFFIX + 1) |
| 118 | #define OPTION_NO_GC_SECTIONS (OPTION_GC_SECTIONS + 1) |
| 119 | #define OPTION_CHECK_SECTIONS (OPTION_NO_GC_SECTIONS + 1) |
| 120 | #define OPTION_NO_CHECK_SECTIONS (OPTION_CHECK_SECTIONS + 1) |
| 121 | #define OPTION_MPC860C0 (OPTION_NO_CHECK_SECTIONS + 1) |
| 122 | #define OPTION_NO_UNDEFINED (OPTION_MPC860C0 + 1) |
| 123 | #define OPTION_INIT (OPTION_NO_UNDEFINED + 1) |
| 124 | #define OPTION_FINI (OPTION_INIT + 1) |
| 125 | #define OPTION_SECTION_START (OPTION_FINI + 1) |
| 126 | #define OPTION_UNIQUE (OPTION_SECTION_START + 1) |
| 127 | #define OPTION_TARGET_HELP (OPTION_UNIQUE + 1) |
| 128 | #define OPTION_ALLOW_SHLIB_UNDEFINED (OPTION_TARGET_HELP + 1) |
| 129 | #define OPTION_NO_ALLOW_SHLIB_UNDEFINED (OPTION_ALLOW_SHLIB_UNDEFINED + 1) |
| 130 | #define OPTION_ALLOW_MULTIPLE_DEFINITION (OPTION_NO_ALLOW_SHLIB_UNDEFINED + 1) |
| 131 | #define OPTION_NO_UNDEFINED_VERSION (OPTION_ALLOW_MULTIPLE_DEFINITION + 1) |
| 132 | #define OPTION_DISCARD_NONE (OPTION_NO_UNDEFINED_VERSION + 1) |
| 133 | #define OPTION_SPARE_DYNAMIC_TAGS (OPTION_DISCARD_NONE + 1) |
| 134 | #define OPTION_NO_DEFINE_COMMON (OPTION_SPARE_DYNAMIC_TAGS + 1) |
| 135 | #define OPTION_NOSTDLIB (OPTION_NO_DEFINE_COMMON + 1) |
| 136 | #define OPTION_NO_OMAGIC (OPTION_NOSTDLIB + 1) |
| 137 | #define OPTION_STRIP_DISCARDED (OPTION_NO_OMAGIC + 1) |
| 138 | #define OPTION_NO_STRIP_DISCARDED (OPTION_STRIP_DISCARDED + 1) |
| 139 | #define OPTION_ACCEPT_UNKNOWN_INPUT_ARCH (OPTION_NO_STRIP_DISCARDED + 1) |
| 140 | #define OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH (OPTION_ACCEPT_UNKNOWN_INPUT_ARCH + 1) |
| 141 | |
| 142 | /* The long options. This structure is used for both the option |
| 143 | parsing and the help text. */ |
| 144 | |
| 145 | struct ld_option |
| 146 | { |
| 147 | /* The long option information. */ |
| 148 | struct option opt; |
| 149 | /* The short option with the same meaning ('\0' if none). */ |
| 150 | char shortopt; |
| 151 | /* The name of the argument (NULL if none). */ |
| 152 | const char *arg; |
| 153 | /* The documentation string. If this is NULL, this is a synonym for |
| 154 | the previous option. */ |
| 155 | const char *doc; |
| 156 | enum { |
| 157 | /* Use one dash before long option name. */ |
| 158 | ONE_DASH, |
| 159 | /* Use two dashes before long option name. */ |
| 160 | TWO_DASHES, |
| 161 | /* Only accept two dashes before the long option name. |
| 162 | This is an overloading of the use of this enum, since originally it |
| 163 | was only intended to tell the --help display function how to display |
| 164 | the long option name. This feature was added in order to resolve |
| 165 | the confusion about the -omagic command line switch. Is it setting |
| 166 | the output file name to "magic" or is it setting the NMAGIC flag on |
| 167 | the output ? It has been decided that it is setting the output file |
| 168 | name, and that if you want to set the NMAGIC flag you should use -N |
| 169 | or --omagic. */ |
| 170 | EXACTLY_TWO_DASHES, |
| 171 | /* Don't mention this option in --help output. */ |
| 172 | NO_HELP |
| 173 | } control; |
| 174 | }; |
| 175 | |
| 176 | static const struct ld_option ld_options[] = |
| 177 | { |
| 178 | { {NULL, required_argument, NULL, '\0'}, |
| 179 | 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"), |
| 180 | ONE_DASH }, |
| 181 | { {"architecture", required_argument, NULL, 'A'}, |
| 182 | 'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES }, |
| 183 | { {"format", required_argument, NULL, 'b'}, |
| 184 | 'b', N_("TARGET"), N_("Specify target for following input files"), TWO_DASHES }, |
| 185 | { {"mri-script", required_argument, NULL, 'c'}, |
| 186 | 'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES }, |
| 187 | { {"dc", no_argument, NULL, 'd'}, |
| 188 | 'd', NULL, N_("Force common symbols to be defined"), ONE_DASH }, |
| 189 | { {"dp", no_argument, NULL, 'd'}, |
| 190 | '\0', NULL, NULL, ONE_DASH }, |
| 191 | { {"entry", required_argument, NULL, 'e'}, |
| 192 | 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES }, |
| 193 | { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC}, |
| 194 | 'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES }, |
| 195 | { {"EB", no_argument, NULL, OPTION_EB}, |
| 196 | '\0', NULL, N_("Link big-endian objects"), ONE_DASH }, |
| 197 | { {"EL", no_argument, NULL, OPTION_EL}, |
| 198 | '\0', NULL, N_("Link little-endian objects"), ONE_DASH }, |
| 199 | { {"auxiliary", required_argument, NULL, 'f'}, |
| 200 | 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"), |
| 201 | TWO_DASHES }, |
| 202 | { {"filter", required_argument, NULL, 'F'}, |
| 203 | 'F', N_("SHLIB"), N_("Filter for shared object symbol table"), TWO_DASHES }, |
| 204 | { {NULL, no_argument, NULL, '\0'}, |
| 205 | 'g', NULL, N_("Ignored"), ONE_DASH }, |
| 206 | { {"gpsize", required_argument, NULL, 'G'}, |
| 207 | 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"), |
| 208 | TWO_DASHES }, |
| 209 | { {"soname", required_argument, NULL, OPTION_SONAME}, |
| 210 | 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH }, |
| 211 | { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER}, |
| 212 | 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"), TWO_DASHES }, |
| 213 | { {"library", required_argument, NULL, 'l'}, |
| 214 | 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES }, |
| 215 | { {"library-path", required_argument, NULL, 'L'}, |
| 216 | 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"), TWO_DASHES }, |
| 217 | { {NULL, required_argument, NULL, '\0'}, |
| 218 | 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH }, |
| 219 | { {"print-map", no_argument, NULL, 'M'}, |
| 220 | 'M', NULL, N_("Print map file on standard output"), TWO_DASHES }, |
| 221 | { {"nmagic", no_argument, NULL, 'n'}, |
| 222 | 'n', NULL, N_("Do not page align data"), TWO_DASHES }, |
| 223 | { {"omagic", no_argument, NULL, 'N'}, |
| 224 | 'N', NULL, N_("Do not page align data, do not make text readonly"), |
| 225 | EXACTLY_TWO_DASHES }, |
| 226 | { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC}, |
| 227 | '\0', NULL, N_("Page align data, make text readonly"), EXACTLY_TWO_DASHES }, |
| 228 | { {"output", required_argument, NULL, 'o'}, |
| 229 | 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES }, |
| 230 | { {NULL, required_argument, NULL, '\0'}, |
| 231 | 'O', NULL, N_("Optimize output file"), ONE_DASH }, |
| 232 | { {"Qy", no_argument, NULL, OPTION_IGNORE}, |
| 233 | '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH }, |
| 234 | { {"emit-relocs", no_argument, NULL, 'q'}, |
| 235 | 'q', NULL, "Generate relocations in final output", TWO_DASHES }, |
| 236 | { {"relocateable", no_argument, NULL, 'r'}, |
| 237 | 'r', NULL, N_("Generate relocateable output"), TWO_DASHES }, |
| 238 | { {NULL, no_argument, NULL, '\0'}, |
| 239 | 'i', NULL, NULL, ONE_DASH }, |
| 240 | { {"just-symbols", required_argument, NULL, 'R'}, |
| 241 | 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"), |
| 242 | TWO_DASHES }, |
| 243 | { {"strip-all", no_argument, NULL, 's'}, |
| 244 | 's', NULL, N_("Strip all symbols"), TWO_DASHES }, |
| 245 | { {"strip-debug", no_argument, NULL, 'S'}, |
| 246 | 'S', NULL, N_("Strip debugging symbols"), TWO_DASHES }, |
| 247 | { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED}, |
| 248 | '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES }, |
| 249 | { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED}, |
| 250 | '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES }, |
| 251 | { {"trace", no_argument, NULL, 't'}, |
| 252 | 't', NULL, N_("Trace file opens"), TWO_DASHES }, |
| 253 | { {"script", required_argument, NULL, 'T'}, |
| 254 | 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES }, |
| 255 | { {"undefined", required_argument, NULL, 'u'}, |
| 256 | 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"), TWO_DASHES }, |
| 257 | { {"unique", optional_argument, NULL, OPTION_UNIQUE}, |
| 258 | '\0', N_("[=SECTION]"), N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES }, |
| 259 | { {"Ur", no_argument, NULL, OPTION_UR}, |
| 260 | '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH }, |
| 261 | { {"version", no_argument, NULL, OPTION_VERSION}, |
| 262 | 'v', NULL, N_("Print version information"), TWO_DASHES }, |
| 263 | { {NULL, no_argument, NULL, '\0'}, |
| 264 | 'V', NULL, N_("Print version and emulation information"), ONE_DASH }, |
| 265 | { {"discard-all", no_argument, NULL, 'x'}, |
| 266 | 'x', NULL, N_("Discard all local symbols"), TWO_DASHES }, |
| 267 | { {"discard-locals", no_argument, NULL, 'X'}, |
| 268 | 'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES }, |
| 269 | { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE}, |
| 270 | '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES }, |
| 271 | { {"trace-symbol", required_argument, NULL, 'y'}, |
| 272 | 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES }, |
| 273 | { {NULL, required_argument, NULL, '\0'}, |
| 274 | 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"), ONE_DASH }, |
| 275 | { {"start-group", no_argument, NULL, '('}, |
| 276 | '(', NULL, N_("Start a group"), TWO_DASHES }, |
| 277 | { {"end-group", no_argument, NULL, ')'}, |
| 278 | ')', NULL, N_("End a group"), TWO_DASHES }, |
| 279 | { {"accept-unknown-input-arch", no_argument, NULL, OPTION_ACCEPT_UNKNOWN_INPUT_ARCH}, |
| 280 | '\0', NULL, N_("Accept input files whose architecture cannot be determined"), TWO_DASHES }, |
| 281 | { {"no-accept-unknown-input-arch", no_argument, NULL, OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH}, |
| 282 | '\0', NULL, N_("Reject input files whose architecture is unknown"), TWO_DASHES }, |
| 283 | { {"assert", required_argument, NULL, OPTION_ASSERT}, |
| 284 | '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH }, |
| 285 | { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED}, |
| 286 | '\0', NULL, N_("Link against shared libraries"), ONE_DASH }, |
| 287 | { {"dy", no_argument, NULL, OPTION_CALL_SHARED}, |
| 288 | '\0', NULL, NULL, ONE_DASH }, |
| 289 | { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED}, |
| 290 | '\0', NULL, NULL, ONE_DASH }, |
| 291 | { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED}, |
| 292 | '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH }, |
| 293 | { {"dn", no_argument, NULL, OPTION_NON_SHARED}, |
| 294 | '\0', NULL, NULL, ONE_DASH }, |
| 295 | { {"non_shared", no_argument, NULL, OPTION_NON_SHARED}, |
| 296 | '\0', NULL, NULL, ONE_DASH }, |
| 297 | { {"static", no_argument, NULL, OPTION_NON_SHARED}, |
| 298 | '\0', NULL, NULL, ONE_DASH }, |
| 299 | { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC}, |
| 300 | '\0', NULL, N_("Bind global references locally"), ONE_DASH }, |
| 301 | { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS}, |
| 302 | '\0', NULL, N_("Check section addresses for overlaps (default)"), TWO_DASHES }, |
| 303 | { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS}, |
| 304 | '\0', NULL, N_("Do not check section addresses for overlaps"), |
| 305 | TWO_DASHES }, |
| 306 | { {"cref", no_argument, NULL, OPTION_CREF}, |
| 307 | '\0', NULL, N_("Output cross reference table"), TWO_DASHES }, |
| 308 | { {"defsym", required_argument, NULL, OPTION_DEFSYM}, |
| 309 | '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES }, |
| 310 | { {"demangle", optional_argument, NULL, OPTION_DEMANGLE}, |
| 311 | '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"), TWO_DASHES }, |
| 312 | { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS}, |
| 313 | '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES}, |
| 314 | { {"fini", required_argument, NULL, OPTION_FINI}, |
| 315 | '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH }, |
| 316 | { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX}, |
| 317 | '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES}, |
| 318 | { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS}, |
| 319 | '\0', NULL, N_("Remove unused sections (on some targets)"), |
| 320 | TWO_DASHES }, |
| 321 | { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS}, |
| 322 | '\0', NULL, N_("Don't remove unused sections (default)"), |
| 323 | TWO_DASHES }, |
| 324 | { {"help", no_argument, NULL, OPTION_HELP}, |
| 325 | '\0', NULL, N_("Print option help"), TWO_DASHES }, |
| 326 | { {"init", required_argument, NULL, OPTION_INIT}, |
| 327 | '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH }, |
| 328 | { {"Map", required_argument, NULL, OPTION_MAP}, |
| 329 | '\0', N_("FILE"), N_("Write a map file"), ONE_DASH }, |
| 330 | { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON}, |
| 331 | '\0', NULL, N_("Do not define Common storage"), TWO_DASHES }, |
| 332 | { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE }, |
| 333 | '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES }, |
| 334 | { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY}, |
| 335 | '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES }, |
| 336 | { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED}, |
| 337 | '\0', NULL, N_("Allow no undefined symbols"), TWO_DASHES }, |
| 338 | { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED}, |
| 339 | '\0', NULL, N_("Allow undefined symbols in shared objects (the default)"), TWO_DASHES }, |
| 340 | { {"no-allow-shlib-undefined", no_argument, NULL, OPTION_NO_ALLOW_SHLIB_UNDEFINED}, |
| 341 | '\0', NULL, N_("Do not allow undefined symbols in shared objects"), TWO_DASHES }, |
| 342 | { {"allow-multiple-definition", no_argument, NULL, OPTION_ALLOW_MULTIPLE_DEFINITION}, |
| 343 | '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES }, |
| 344 | { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION}, |
| 345 | '\0', NULL, N_("Disallow undefined version"), TWO_DASHES }, |
| 346 | { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH}, |
| 347 | '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES}, |
| 348 | { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE}, |
| 349 | '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES }, |
| 350 | { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC}, |
| 351 | '\0', NULL, N_("Create an output file even if errors occur"), TWO_DASHES }, |
| 352 | { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC}, |
| 353 | '\0', NULL, NULL, NO_HELP }, |
| 354 | { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB}, |
| 355 | '\0', NULL, N_("Only use library directories specified on\n\t\t\t\tthe command line"), ONE_DASH }, |
| 356 | { {"oformat", required_argument, NULL, OPTION_OFORMAT}, |
| 357 | '\0', N_("TARGET"), N_("Specify target of output file"), EXACTLY_TWO_DASHES }, |
| 358 | { {"qmagic", no_argument, NULL, OPTION_IGNORE}, |
| 359 | '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH }, |
| 360 | { {"relax", no_argument, NULL, OPTION_RELAX}, |
| 361 | '\0', NULL, N_("Relax branches on certain targets"), TWO_DASHES }, |
| 362 | { {"retain-symbols-file", required_argument, NULL, |
| 363 | OPTION_RETAIN_SYMBOLS_FILE}, |
| 364 | '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES }, |
| 365 | { {"rpath", required_argument, NULL, OPTION_RPATH}, |
| 366 | '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH }, |
| 367 | { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK}, |
| 368 | '\0', N_("PATH"), N_("Set link time shared library search path"), ONE_DASH }, |
| 369 | { {"shared", no_argument, NULL, OPTION_SHARED}, |
| 370 | '\0', NULL, N_("Create a shared library"), ONE_DASH }, |
| 371 | { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */ |
| 372 | '\0', NULL, NULL, ONE_DASH }, |
| 373 | { {"sort-common", no_argument, NULL, OPTION_SORT_COMMON}, |
| 374 | '\0', NULL, N_("Sort common symbols by size"), TWO_DASHES }, |
| 375 | { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON}, |
| 376 | '\0', NULL, NULL, NO_HELP }, |
| 377 | { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS}, |
| 378 | '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"), TWO_DASHES }, |
| 379 | { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE}, |
| 380 | '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"), TWO_DASHES }, |
| 381 | { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC}, |
| 382 | '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"), TWO_DASHES }, |
| 383 | { {"stats", no_argument, NULL, OPTION_STATS}, |
| 384 | '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES }, |
| 385 | { {"target-help", no_argument, NULL, OPTION_TARGET_HELP}, |
| 386 | '\0', NULL, N_("Display target specific options"), TWO_DASHES }, |
| 387 | { {"task-link", required_argument, NULL, OPTION_TASK_LINK}, |
| 388 | '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES }, |
| 389 | { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT}, |
| 390 | '\0', NULL, N_("Use same format as native linker"), TWO_DASHES }, |
| 391 | { {"section-start", required_argument, NULL, OPTION_SECTION_START}, |
| 392 | '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"), TWO_DASHES }, |
| 393 | { {"Tbss", required_argument, NULL, OPTION_TBSS}, |
| 394 | '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH }, |
| 395 | { {"Tdata", required_argument, NULL, OPTION_TDATA}, |
| 396 | '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH }, |
| 397 | { {"Ttext", required_argument, NULL, OPTION_TTEXT}, |
| 398 | '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH }, |
| 399 | { {"verbose", no_argument, NULL, OPTION_VERBOSE}, |
| 400 | '\0', NULL, N_("Output lots of information during link"), TWO_DASHES }, |
| 401 | { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */ |
| 402 | '\0', NULL, NULL, NO_HELP }, |
| 403 | { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT }, |
| 404 | '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES }, |
| 405 | { {"version-exports-section", required_argument, NULL, |
| 406 | OPTION_VERSION_EXPORTS_SECTION }, |
| 407 | '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n\t\t\t\tSYMBOL as the version."), |
| 408 | TWO_DASHES }, |
| 409 | { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON}, |
| 410 | '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES }, |
| 411 | { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS}, |
| 412 | '\0', NULL, N_("Warn if global constructors/destructors are seen"), |
| 413 | TWO_DASHES }, |
| 414 | { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP}, |
| 415 | '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES }, |
| 416 | { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE}, |
| 417 | '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES }, |
| 418 | { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN}, |
| 419 | '\0', NULL, N_("Warn if start of section changes due to alignment"), |
| 420 | TWO_DASHES }, |
| 421 | { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}, |
| 422 | '\0', NULL, N_("Treat warnings as errors"), |
| 423 | TWO_DASHES }, |
| 424 | { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE}, |
| 425 | '\0', NULL, N_("Include all objects from following archives"), TWO_DASHES }, |
| 426 | { {"wrap", required_argument, NULL, OPTION_WRAP}, |
| 427 | '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES }, |
| 428 | { {"mpc860c0", optional_argument, NULL, OPTION_MPC860C0}, |
| 429 | '\0', N_("[=WORDS]"), N_("Modify problematic branches in last WORDS (1-10,\n\t\t\t\tdefault 5) words of a page"), TWO_DASHES } |
| 430 | }; |
| 431 | |
| 432 | #define OPTION_COUNT ARRAY_SIZE (ld_options) |
| 433 | |
| 434 | /* Test STRING for containing a string of digits that form a number |
| 435 | between MIN and MAX. The return value is the number or ERR. */ |
| 436 | |
| 437 | static int |
| 438 | is_num (string, min, max, err) |
| 439 | const char *string; |
| 440 | int min; |
| 441 | int max; |
| 442 | int err; |
| 443 | { |
| 444 | int result = 0; |
| 445 | |
| 446 | for (; *string; ++string) |
| 447 | { |
| 448 | if (! ISDIGIT (*string)) |
| 449 | { |
| 450 | result = err; |
| 451 | break; |
| 452 | } |
| 453 | result = result * 10 + (*string - '0'); |
| 454 | } |
| 455 | if (result < min || result > max) |
| 456 | result = err; |
| 457 | |
| 458 | return result; |
| 459 | } |
| 460 | |
| 461 | void |
| 462 | parse_args (argc, argv) |
| 463 | unsigned argc; |
| 464 | char **argv; |
| 465 | { |
| 466 | unsigned i; |
| 467 | int is, il, irl; |
| 468 | int ingroup = 0; |
| 469 | char *default_dirlist = NULL; |
| 470 | char *shortopts; |
| 471 | struct option *longopts; |
| 472 | struct option *really_longopts; |
| 473 | int last_optind; |
| 474 | |
| 475 | shortopts = (char *) xmalloc (OPTION_COUNT * 3 + 2); |
| 476 | longopts = (struct option *) xmalloc (sizeof (*longopts) |
| 477 | * (OPTION_COUNT + 1)); |
| 478 | really_longopts = (struct option *) xmalloc (sizeof (*really_longopts) |
| 479 | * (OPTION_COUNT + 1)); |
| 480 | |
| 481 | /* Starting the short option string with '-' is for programs that |
| 482 | expect options and other ARGV-elements in any order and that care about |
| 483 | the ordering of the two. We describe each non-option ARGV-element |
| 484 | as if it were the argument of an option with character code 1. */ |
| 485 | shortopts[0] = '-'; |
| 486 | is = 1; |
| 487 | il = 0; |
| 488 | irl = 0; |
| 489 | for (i = 0; i < OPTION_COUNT; i++) |
| 490 | { |
| 491 | if (ld_options[i].shortopt != '\0') |
| 492 | { |
| 493 | shortopts[is] = ld_options[i].shortopt; |
| 494 | ++is; |
| 495 | if (ld_options[i].opt.has_arg == required_argument |
| 496 | || ld_options[i].opt.has_arg == optional_argument) |
| 497 | { |
| 498 | shortopts[is] = ':'; |
| 499 | ++is; |
| 500 | if (ld_options[i].opt.has_arg == optional_argument) |
| 501 | { |
| 502 | shortopts[is] = ':'; |
| 503 | ++is; |
| 504 | } |
| 505 | } |
| 506 | } |
| 507 | if (ld_options[i].opt.name != NULL) |
| 508 | { |
| 509 | if (ld_options[i].control == EXACTLY_TWO_DASHES) |
| 510 | { |
| 511 | really_longopts[irl] = ld_options[i].opt; |
| 512 | ++irl; |
| 513 | } |
| 514 | else |
| 515 | { |
| 516 | longopts[il] = ld_options[i].opt; |
| 517 | ++il; |
| 518 | } |
| 519 | } |
| 520 | } |
| 521 | shortopts[is] = '\0'; |
| 522 | longopts[il].name = NULL; |
| 523 | really_longopts[irl].name = NULL; |
| 524 | |
| 525 | ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts); |
| 526 | |
| 527 | /* The -G option is ambiguous on different platforms. Sometimes it |
| 528 | specifies the largest data size to put into the small data |
| 529 | section. Sometimes it is equivalent to --shared. Unfortunately, |
| 530 | the first form takes an argument, while the second does not. |
| 531 | |
| 532 | We need to permit the --shared form because on some platforms, |
| 533 | such as Solaris, gcc -shared will pass -G to the linker. |
| 534 | |
| 535 | To permit either usage, we look through the argument list. If we |
| 536 | find -G not followed by a number, we change it into --shared. |
| 537 | This will work for most normal cases. */ |
| 538 | for (i = 1; i < argc; i++) |
| 539 | if (strcmp (argv[i], "-G") == 0 |
| 540 | && (i + 1 >= argc |
| 541 | || ! ISDIGIT (argv[i + 1][0]))) |
| 542 | argv[i] = (char *) "--shared"; |
| 543 | |
| 544 | /* Because we permit long options to start with a single dash, and |
| 545 | we have a --library option, and the -l option is conventionally |
| 546 | used with an immediately following argument, we can have bad |
| 547 | results if somebody tries to use -l with a library whose name |
| 548 | happens to start with "ibrary", as in -li. We avoid problems by |
| 549 | simply turning -l into --library. This means that users will |
| 550 | have to use two dashes in order to use --library, which is OK |
| 551 | since that's how it is documented. |
| 552 | |
| 553 | FIXME: It's possible that this problem can arise for other short |
| 554 | options as well, although the user does always have the recourse |
| 555 | of adding a space between the option and the argument. */ |
| 556 | for (i = 1; i < argc; i++) |
| 557 | { |
| 558 | if (argv[i][0] == '-' |
| 559 | && argv[i][1] == 'l' |
| 560 | && argv[i][2] != '\0') |
| 561 | { |
| 562 | char *n; |
| 563 | |
| 564 | n = (char *) xmalloc (strlen (argv[i]) + 20); |
| 565 | sprintf (n, "--library=%s", argv[i] + 2); |
| 566 | argv[i] = n; |
| 567 | } |
| 568 | } |
| 569 | |
| 570 | last_optind = -1; |
| 571 | while (1) |
| 572 | { |
| 573 | int longind; |
| 574 | int optc; |
| 575 | |
| 576 | /* Using last_optind lets us avoid calling ldemul_parse_args |
| 577 | multiple times on a single option, which would lead to |
| 578 | confusion in the internal static variables maintained by |
| 579 | getopt. This could otherwise happen for an argument like |
| 580 | -nx, in which the -n is parsed as a single option, and we |
| 581 | loop around to pick up the -x. */ |
| 582 | if (optind != last_optind) |
| 583 | if (ldemul_parse_args (argc, argv)) |
| 584 | continue; |
| 585 | |
| 586 | /* getopt_long_only is like getopt_long, but '-' as well as '--' |
| 587 | can indicate a long option. */ |
| 588 | opterr = 0; |
| 589 | last_optind = optind; |
| 590 | optc = getopt_long_only (argc, argv, shortopts, longopts, &longind); |
| 591 | if (optc == '?') |
| 592 | { |
| 593 | optind = last_optind; |
| 594 | optc = getopt_long (argc, argv, "-", really_longopts, &longind); |
| 595 | } |
| 596 | |
| 597 | if (ldemul_handle_option (optc)) |
| 598 | continue; |
| 599 | |
| 600 | if (optc == -1) |
| 601 | break; |
| 602 | |
| 603 | switch (optc) |
| 604 | { |
| 605 | case '?': |
| 606 | einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]); |
| 607 | default: |
| 608 | einfo (_("%P%F: use the --help option for usage information\n")); |
| 609 | |
| 610 | case 1: /* File name. */ |
| 611 | lang_add_input_file (optarg, lang_input_file_is_file_enum, |
| 612 | (char *) NULL); |
| 613 | break; |
| 614 | |
| 615 | case OPTION_IGNORE: |
| 616 | break; |
| 617 | case 'a': |
| 618 | /* For HP/UX compatibility. Actually -a shared should mean |
| 619 | ``use only shared libraries'' but, then, we don't |
| 620 | currently support shared libraries on HP/UX anyhow. */ |
| 621 | if (strcmp (optarg, "archive") == 0) |
| 622 | config.dynamic_link = FALSE; |
| 623 | else if (strcmp (optarg, "shared") == 0 |
| 624 | || strcmp (optarg, "default") == 0) |
| 625 | config.dynamic_link = TRUE; |
| 626 | else |
| 627 | einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg); |
| 628 | break; |
| 629 | case OPTION_ASSERT: |
| 630 | /* FIXME: We just ignore these, but we should handle them. */ |
| 631 | if (strcmp (optarg, "definitions") == 0) |
| 632 | ; |
| 633 | else if (strcmp (optarg, "nodefinitions") == 0) |
| 634 | ; |
| 635 | else if (strcmp (optarg, "nosymbolic") == 0) |
| 636 | ; |
| 637 | else if (strcmp (optarg, "pure-text") == 0) |
| 638 | ; |
| 639 | else |
| 640 | einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg); |
| 641 | break; |
| 642 | case 'A': |
| 643 | ldfile_add_arch (optarg); |
| 644 | break; |
| 645 | case 'b': |
| 646 | lang_add_target (optarg); |
| 647 | break; |
| 648 | case 'c': |
| 649 | ldfile_open_command_file (optarg); |
| 650 | parser_input = input_mri_script; |
| 651 | yyparse (); |
| 652 | break; |
| 653 | case OPTION_CALL_SHARED: |
| 654 | config.dynamic_link = TRUE; |
| 655 | break; |
| 656 | case OPTION_NON_SHARED: |
| 657 | config.dynamic_link = FALSE; |
| 658 | break; |
| 659 | case OPTION_CREF: |
| 660 | command_line.cref = TRUE; |
| 661 | link_info.notice_all = TRUE; |
| 662 | break; |
| 663 | case 'd': |
| 664 | command_line.force_common_definition = TRUE; |
| 665 | break; |
| 666 | case OPTION_DEFSYM: |
| 667 | lex_string = optarg; |
| 668 | lex_redirect (optarg); |
| 669 | parser_input = input_defsym; |
| 670 | parsing_defsym = 1; |
| 671 | yyparse (); |
| 672 | parsing_defsym = 0; |
| 673 | lex_string = NULL; |
| 674 | break; |
| 675 | case OPTION_DEMANGLE: |
| 676 | demangling = TRUE; |
| 677 | if (optarg != NULL) |
| 678 | { |
| 679 | enum demangling_styles style; |
| 680 | |
| 681 | style = cplus_demangle_name_to_style (optarg); |
| 682 | if (style == unknown_demangling) |
| 683 | einfo (_("%F%P: unknown demangling style `%s'"), |
| 684 | optarg); |
| 685 | |
| 686 | cplus_demangle_set_style (style); |
| 687 | } |
| 688 | break; |
| 689 | case 'I': /* Used on Solaris. */ |
| 690 | case OPTION_DYNAMIC_LINKER: |
| 691 | command_line.interpreter = optarg; |
| 692 | break; |
| 693 | case OPTION_EB: |
| 694 | command_line.endian = ENDIAN_BIG; |
| 695 | break; |
| 696 | case OPTION_EL: |
| 697 | command_line.endian = ENDIAN_LITTLE; |
| 698 | break; |
| 699 | case OPTION_EMBEDDED_RELOCS: |
| 700 | command_line.embedded_relocs = TRUE; |
| 701 | break; |
| 702 | case OPTION_EXPORT_DYNAMIC: |
| 703 | case 'E': /* HP/UX compatibility. */ |
| 704 | link_info.export_dynamic = TRUE; |
| 705 | break; |
| 706 | case 'e': |
| 707 | lang_add_entry (optarg, TRUE); |
| 708 | break; |
| 709 | case 'f': |
| 710 | if (command_line.auxiliary_filters == NULL) |
| 711 | { |
| 712 | command_line.auxiliary_filters = |
| 713 | (char **) xmalloc (2 * sizeof (char *)); |
| 714 | command_line.auxiliary_filters[0] = optarg; |
| 715 | command_line.auxiliary_filters[1] = NULL; |
| 716 | } |
| 717 | else |
| 718 | { |
| 719 | int c; |
| 720 | char **p; |
| 721 | |
| 722 | c = 0; |
| 723 | for (p = command_line.auxiliary_filters; *p != NULL; p++) |
| 724 | ++c; |
| 725 | command_line.auxiliary_filters = |
| 726 | (char **) xrealloc (command_line.auxiliary_filters, |
| 727 | (c + 2) * sizeof (char *)); |
| 728 | command_line.auxiliary_filters[c] = optarg; |
| 729 | command_line.auxiliary_filters[c + 1] = NULL; |
| 730 | } |
| 731 | break; |
| 732 | case 'F': |
| 733 | command_line.filter_shlib = optarg; |
| 734 | break; |
| 735 | case OPTION_FORCE_EXE_SUFFIX: |
| 736 | command_line.force_exe_suffix = TRUE; |
| 737 | break; |
| 738 | case 'G': |
| 739 | { |
| 740 | char *end; |
| 741 | g_switch_value = strtoul (optarg, &end, 0); |
| 742 | if (*end) |
| 743 | einfo (_("%P%F: invalid number `%s'\n"), optarg); |
| 744 | } |
| 745 | break; |
| 746 | case 'g': |
| 747 | /* Ignore. */ |
| 748 | break; |
| 749 | case OPTION_GC_SECTIONS: |
| 750 | command_line.gc_sections = TRUE; |
| 751 | break; |
| 752 | case OPTION_HELP: |
| 753 | help (); |
| 754 | xexit (0); |
| 755 | break; |
| 756 | case 'L': |
| 757 | ldfile_add_library_path (optarg, TRUE); |
| 758 | break; |
| 759 | case 'l': |
| 760 | lang_add_input_file (optarg, lang_input_file_is_l_enum, |
| 761 | (char *) NULL); |
| 762 | break; |
| 763 | case 'M': |
| 764 | config.map_filename = "-"; |
| 765 | break; |
| 766 | case 'm': |
| 767 | /* Ignore. Was handled in a pre-parse. */ |
| 768 | break; |
| 769 | case OPTION_MAP: |
| 770 | config.map_filename = optarg; |
| 771 | break; |
| 772 | case 'N': |
| 773 | config.text_read_only = FALSE; |
| 774 | config.magic_demand_paged = FALSE; |
| 775 | config.dynamic_link = FALSE; |
| 776 | break; |
| 777 | case OPTION_NO_OMAGIC: |
| 778 | config.text_read_only = TRUE; |
| 779 | config.magic_demand_paged = TRUE; |
| 780 | /* NB/ Does not set dynamic_link to TRUE. |
| 781 | Use --call-shared or -Bdynamic for this. */ |
| 782 | break; |
| 783 | case 'n': |
| 784 | config.magic_demand_paged = FALSE; |
| 785 | config.dynamic_link = FALSE; |
| 786 | break; |
| 787 | case OPTION_NO_DEFINE_COMMON: |
| 788 | command_line.inhibit_common_definition = TRUE; |
| 789 | break; |
| 790 | case OPTION_NO_DEMANGLE: |
| 791 | demangling = FALSE; |
| 792 | break; |
| 793 | case OPTION_NO_GC_SECTIONS: |
| 794 | command_line.gc_sections = FALSE; |
| 795 | break; |
| 796 | case OPTION_NO_KEEP_MEMORY: |
| 797 | link_info.keep_memory = FALSE; |
| 798 | break; |
| 799 | case OPTION_NO_UNDEFINED: |
| 800 | link_info.no_undefined = TRUE; |
| 801 | break; |
| 802 | case OPTION_ALLOW_SHLIB_UNDEFINED: |
| 803 | link_info.allow_shlib_undefined = TRUE; |
| 804 | break; |
| 805 | case OPTION_NO_ALLOW_SHLIB_UNDEFINED: |
| 806 | link_info.allow_shlib_undefined = FALSE; |
| 807 | break; |
| 808 | case OPTION_ALLOW_MULTIPLE_DEFINITION: |
| 809 | link_info.allow_multiple_definition = TRUE; |
| 810 | break; |
| 811 | case OPTION_NO_UNDEFINED_VERSION: |
| 812 | link_info.allow_undefined_version = FALSE; |
| 813 | break; |
| 814 | case OPTION_NO_WARN_MISMATCH: |
| 815 | command_line.warn_mismatch = FALSE; |
| 816 | break; |
| 817 | case OPTION_NOINHIBIT_EXEC: |
| 818 | force_make_executable = TRUE; |
| 819 | break; |
| 820 | case OPTION_NOSTDLIB: |
| 821 | config.only_cmd_line_lib_dirs = TRUE; |
| 822 | break; |
| 823 | case OPTION_NO_WHOLE_ARCHIVE: |
| 824 | whole_archive = FALSE; |
| 825 | break; |
| 826 | case 'O': |
| 827 | /* FIXME "-O<non-digits> <value>" used to set the address of |
| 828 | section <non-digits>. Was this for compatibility with |
| 829 | something, or can we create a new option to do that |
| 830 | (with a syntax similar to -defsym)? |
| 831 | getopt can't handle two args to an option without kludges. */ |
| 832 | |
| 833 | /* Enable optimizations of output files. */ |
| 834 | link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE; |
| 835 | break; |
| 836 | case 'o': |
| 837 | lang_add_output (optarg, 0); |
| 838 | break; |
| 839 | case OPTION_OFORMAT: |
| 840 | lang_add_output_format (optarg, (char *) NULL, (char *) NULL, 0); |
| 841 | break; |
| 842 | case 'q': |
| 843 | link_info.emitrelocations = TRUE; |
| 844 | break; |
| 845 | case 'i': |
| 846 | case 'r': |
| 847 | if (optind == last_optind) |
| 848 | /* This can happen if the user put "-rpath,a" on the command |
| 849 | line. (Or something similar. The comma is important). |
| 850 | Getopt becomes confused and thinks that this is a -r option |
| 851 | but it cannot parse the text after the -r so it refuses to |
| 852 | increment the optind counter. Detect this case and issue |
| 853 | an error message here. We cannot just make this a warning, |
| 854 | increment optind, and continue because getopt is too confused |
| 855 | and will seg-fault the next time around. */ |
| 856 | einfo(_("%P%F: bad -rpath option\n")); |
| 857 | |
| 858 | link_info.relocateable = TRUE; |
| 859 | config.build_constructors = FALSE; |
| 860 | config.magic_demand_paged = FALSE; |
| 861 | config.text_read_only = FALSE; |
| 862 | config.dynamic_link = FALSE; |
| 863 | break; |
| 864 | case 'R': |
| 865 | /* The GNU linker traditionally uses -R to mean to include |
| 866 | only the symbols from a file. The Solaris linker uses -R |
| 867 | to set the path used by the runtime linker to find |
| 868 | libraries. This is the GNU linker -rpath argument. We |
| 869 | try to support both simultaneously by checking the file |
| 870 | named. If it is a directory, rather than a regular file, |
| 871 | we assume -rpath was meant. */ |
| 872 | { |
| 873 | struct stat s; |
| 874 | |
| 875 | if (stat (optarg, &s) >= 0 |
| 876 | && ! S_ISDIR (s.st_mode)) |
| 877 | { |
| 878 | lang_add_input_file (optarg, |
| 879 | lang_input_file_is_symbols_only_enum, |
| 880 | (char *) NULL); |
| 881 | break; |
| 882 | } |
| 883 | } |
| 884 | /* Fall through. */ |
| 885 | case OPTION_RPATH: |
| 886 | if (command_line.rpath == NULL) |
| 887 | command_line.rpath = xstrdup (optarg); |
| 888 | else |
| 889 | { |
| 890 | size_t rpath_len = strlen (command_line.rpath); |
| 891 | size_t optarg_len = strlen (optarg); |
| 892 | char *buf; |
| 893 | char *cp = command_line.rpath; |
| 894 | |
| 895 | /* First see whether OPTARG is already in the path. */ |
| 896 | do |
| 897 | { |
| 898 | size_t idx = 0; |
| 899 | |
| 900 | while (optarg[idx] != '\0' && optarg[idx] == cp[idx]) |
| 901 | ++idx; |
| 902 | if (optarg[idx] == '\0' |
| 903 | && (cp[idx] == '\0' || cp[idx] == ':')) |
| 904 | /* We found it. */ |
| 905 | break; |
| 906 | |
| 907 | /* Not yet found. */ |
| 908 | cp = strchr (cp, ':'); |
| 909 | if (cp != NULL) |
| 910 | ++cp; |
| 911 | } |
| 912 | while (cp != NULL); |
| 913 | |
| 914 | if (cp == NULL) |
| 915 | { |
| 916 | buf = xmalloc (rpath_len + optarg_len + 2); |
| 917 | sprintf (buf, "%s:%s", command_line.rpath, optarg); |
| 918 | free (command_line.rpath); |
| 919 | command_line.rpath = buf; |
| 920 | } |
| 921 | } |
| 922 | break; |
| 923 | case OPTION_RPATH_LINK: |
| 924 | if (command_line.rpath_link == NULL) |
| 925 | command_line.rpath_link = xstrdup (optarg); |
| 926 | else |
| 927 | { |
| 928 | char *buf; |
| 929 | |
| 930 | buf = xmalloc (strlen (command_line.rpath_link) |
| 931 | + strlen (optarg) |
| 932 | + 2); |
| 933 | sprintf (buf, "%s:%s", command_line.rpath_link, optarg); |
| 934 | free (command_line.rpath_link); |
| 935 | command_line.rpath_link = buf; |
| 936 | } |
| 937 | break; |
| 938 | case OPTION_RELAX: |
| 939 | command_line.relax = TRUE; |
| 940 | break; |
| 941 | case OPTION_RETAIN_SYMBOLS_FILE: |
| 942 | add_keepsyms_file (optarg); |
| 943 | break; |
| 944 | case 'S': |
| 945 | link_info.strip = strip_debugger; |
| 946 | break; |
| 947 | case 's': |
| 948 | link_info.strip = strip_all; |
| 949 | break; |
| 950 | case OPTION_STRIP_DISCARDED: |
| 951 | link_info.strip_discarded = TRUE; |
| 952 | break; |
| 953 | case OPTION_NO_STRIP_DISCARDED: |
| 954 | link_info.strip_discarded = FALSE; |
| 955 | break; |
| 956 | case OPTION_SHARED: |
| 957 | if (config.has_shared) |
| 958 | link_info.shared = TRUE; |
| 959 | else |
| 960 | einfo (_("%P%F: -shared not supported\n")); |
| 961 | break; |
| 962 | case 'h': /* Used on Solaris. */ |
| 963 | case OPTION_SONAME: |
| 964 | command_line.soname = optarg; |
| 965 | break; |
| 966 | case OPTION_SORT_COMMON: |
| 967 | config.sort_common = TRUE; |
| 968 | break; |
| 969 | case OPTION_STATS: |
| 970 | config.stats = TRUE; |
| 971 | break; |
| 972 | case OPTION_SYMBOLIC: |
| 973 | link_info.symbolic = TRUE; |
| 974 | break; |
| 975 | case 't': |
| 976 | trace_files = TRUE; |
| 977 | break; |
| 978 | case 'T': |
| 979 | ldfile_open_command_file (optarg); |
| 980 | parser_input = input_script; |
| 981 | yyparse (); |
| 982 | break; |
| 983 | case OPTION_SECTION_START: |
| 984 | { |
| 985 | char *optarg2; |
| 986 | char *sec_name; |
| 987 | int len; |
| 988 | |
| 989 | /* Check for <something>=<somthing>... */ |
| 990 | optarg2 = strchr (optarg, '='); |
| 991 | if (optarg2 == NULL) |
| 992 | einfo (_("%P%F: invalid argument to option \"--section-start\"\n")); |
| 993 | |
| 994 | optarg2++; |
| 995 | |
| 996 | /* So far so good. Are all the args present? */ |
| 997 | if ((*optarg == '\0') || (*optarg2 == '\0')) |
| 998 | einfo (_("%P%F: missing argument(s) to option \"--section-start\"\n")); |
| 999 | |
| 1000 | /* We must copy the section name as set_section_start |
| 1001 | doesn't do it for us. */ |
| 1002 | len = optarg2 - optarg; |
| 1003 | sec_name = xmalloc (len); |
| 1004 | memcpy (sec_name, optarg, len - 1); |
| 1005 | sec_name[len - 1] = 0; |
| 1006 | |
| 1007 | /* Then set it... */ |
| 1008 | set_section_start (sec_name, optarg2); |
| 1009 | } |
| 1010 | break; |
| 1011 | case OPTION_TARGET_HELP: |
| 1012 | /* Mention any target specific options. */ |
| 1013 | ldemul_list_emulation_options (stdout); |
| 1014 | exit (0); |
| 1015 | case OPTION_TBSS: |
| 1016 | set_section_start (".bss", optarg); |
| 1017 | break; |
| 1018 | case OPTION_TDATA: |
| 1019 | set_section_start (".data", optarg); |
| 1020 | break; |
| 1021 | case OPTION_TTEXT: |
| 1022 | set_section_start (".text", optarg); |
| 1023 | break; |
| 1024 | case OPTION_TRADITIONAL_FORMAT: |
| 1025 | link_info.traditional_format = TRUE; |
| 1026 | break; |
| 1027 | case OPTION_TASK_LINK: |
| 1028 | link_info.task_link = TRUE; |
| 1029 | /* Fall through - do an implied -r option. */ |
| 1030 | case OPTION_UR: |
| 1031 | link_info.relocateable = TRUE; |
| 1032 | config.build_constructors = TRUE; |
| 1033 | config.magic_demand_paged = FALSE; |
| 1034 | config.text_read_only = FALSE; |
| 1035 | config.dynamic_link = FALSE; |
| 1036 | break; |
| 1037 | case 'u': |
| 1038 | ldlang_add_undef (optarg); |
| 1039 | break; |
| 1040 | case OPTION_UNIQUE: |
| 1041 | if (optarg != NULL) |
| 1042 | lang_add_unique (optarg); |
| 1043 | else |
| 1044 | config.unique_orphan_sections = TRUE; |
| 1045 | break; |
| 1046 | case OPTION_VERBOSE: |
| 1047 | ldversion (1); |
| 1048 | version_printed = TRUE; |
| 1049 | trace_file_tries = TRUE; |
| 1050 | break; |
| 1051 | case 'v': |
| 1052 | ldversion (0); |
| 1053 | version_printed = TRUE; |
| 1054 | break; |
| 1055 | case 'V': |
| 1056 | ldversion (1); |
| 1057 | version_printed = TRUE; |
| 1058 | break; |
| 1059 | case OPTION_VERSION: |
| 1060 | ldversion (2); |
| 1061 | xexit (0); |
| 1062 | break; |
| 1063 | case OPTION_VERSION_SCRIPT: |
| 1064 | /* This option indicates a small script that only specifies |
| 1065 | version information. Read it, but don't assume that |
| 1066 | we've seen a linker script. */ |
| 1067 | { |
| 1068 | FILE *hold_script_handle; |
| 1069 | |
| 1070 | hold_script_handle = saved_script_handle; |
| 1071 | ldfile_open_command_file (optarg); |
| 1072 | saved_script_handle = hold_script_handle; |
| 1073 | parser_input = input_version_script; |
| 1074 | yyparse (); |
| 1075 | } |
| 1076 | break; |
| 1077 | case OPTION_VERSION_EXPORTS_SECTION: |
| 1078 | /* This option records a version symbol to be applied to the |
| 1079 | symbols listed for export to be found in the object files |
| 1080 | .exports sections. */ |
| 1081 | command_line.version_exports_section = optarg; |
| 1082 | break; |
| 1083 | case OPTION_WARN_COMMON: |
| 1084 | config.warn_common = TRUE; |
| 1085 | break; |
| 1086 | case OPTION_WARN_CONSTRUCTORS: |
| 1087 | config.warn_constructors = TRUE; |
| 1088 | break; |
| 1089 | case OPTION_WARN_FATAL: |
| 1090 | config.fatal_warnings = TRUE; |
| 1091 | break; |
| 1092 | case OPTION_WARN_MULTIPLE_GP: |
| 1093 | config.warn_multiple_gp = TRUE; |
| 1094 | break; |
| 1095 | case OPTION_WARN_ONCE: |
| 1096 | config.warn_once = TRUE; |
| 1097 | break; |
| 1098 | case OPTION_WARN_SECTION_ALIGN: |
| 1099 | config.warn_section_align = TRUE; |
| 1100 | break; |
| 1101 | case OPTION_WHOLE_ARCHIVE: |
| 1102 | whole_archive = TRUE; |
| 1103 | break; |
| 1104 | case OPTION_WRAP: |
| 1105 | add_wrap (optarg); |
| 1106 | break; |
| 1107 | case OPTION_DISCARD_NONE: |
| 1108 | link_info.discard = discard_none; |
| 1109 | break; |
| 1110 | case 'X': |
| 1111 | link_info.discard = discard_l; |
| 1112 | break; |
| 1113 | case 'x': |
| 1114 | link_info.discard = discard_all; |
| 1115 | break; |
| 1116 | case 'Y': |
| 1117 | if (strncmp (optarg, "P,", 2) == 0) |
| 1118 | optarg += 2; |
| 1119 | if (default_dirlist != NULL) |
| 1120 | free (default_dirlist); |
| 1121 | default_dirlist = xstrdup (optarg); |
| 1122 | break; |
| 1123 | case 'y': |
| 1124 | add_ysym (optarg); |
| 1125 | break; |
| 1126 | case OPTION_SPARE_DYNAMIC_TAGS: |
| 1127 | link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0); |
| 1128 | break; |
| 1129 | case OPTION_SPLIT_BY_RELOC: |
| 1130 | if (optarg != NULL) |
| 1131 | config.split_by_reloc = strtoul (optarg, NULL, 0); |
| 1132 | else |
| 1133 | config.split_by_reloc = 32768; |
| 1134 | break; |
| 1135 | case OPTION_SPLIT_BY_FILE: |
| 1136 | if (optarg != NULL) |
| 1137 | config.split_by_file = bfd_scan_vma (optarg, NULL, 0); |
| 1138 | else |
| 1139 | config.split_by_file = 1; |
| 1140 | break; |
| 1141 | case OPTION_CHECK_SECTIONS: |
| 1142 | command_line.check_section_addresses = TRUE; |
| 1143 | break; |
| 1144 | case OPTION_NO_CHECK_SECTIONS: |
| 1145 | command_line.check_section_addresses = FALSE; |
| 1146 | break; |
| 1147 | case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH: |
| 1148 | command_line.accept_unknown_input_arch = TRUE; |
| 1149 | break; |
| 1150 | case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH: |
| 1151 | command_line.accept_unknown_input_arch = FALSE; |
| 1152 | break; |
| 1153 | case '(': |
| 1154 | if (ingroup) |
| 1155 | einfo (_("%P%F: may not nest groups (--help for usage)\n")); |
| 1156 | |
| 1157 | lang_enter_group (); |
| 1158 | ingroup = 1; |
| 1159 | break; |
| 1160 | case ')': |
| 1161 | if (! ingroup) |
| 1162 | einfo (_("%P%F: group ended before it began (--help for usage)\n")); |
| 1163 | |
| 1164 | lang_leave_group (); |
| 1165 | ingroup = 0; |
| 1166 | break; |
| 1167 | case OPTION_MPC860C0: |
| 1168 | /* Default value (in bytes). */ |
| 1169 | link_info.mpc860c0 = 20; |
| 1170 | if (optarg) |
| 1171 | { |
| 1172 | unsigned words; |
| 1173 | |
| 1174 | words = is_num (optarg, 1, 10, 0); |
| 1175 | if (words == 0) |
| 1176 | einfo (_("%P%F: invalid argument to option \"mpc860c0\"\n")); |
| 1177 | |
| 1178 | /* Convert words to bytes. */ |
| 1179 | link_info.mpc860c0 = words * 4; |
| 1180 | } |
| 1181 | command_line.relax = TRUE; |
| 1182 | break; |
| 1183 | |
| 1184 | case OPTION_INIT: |
| 1185 | link_info.init_function = optarg; |
| 1186 | break; |
| 1187 | |
| 1188 | case OPTION_FINI: |
| 1189 | link_info.fini_function = optarg; |
| 1190 | break; |
| 1191 | } |
| 1192 | } |
| 1193 | |
| 1194 | if (ingroup) |
| 1195 | lang_leave_group (); |
| 1196 | |
| 1197 | if (default_dirlist != NULL) |
| 1198 | { |
| 1199 | set_default_dirlist (default_dirlist); |
| 1200 | free (default_dirlist); |
| 1201 | } |
| 1202 | } |
| 1203 | |
| 1204 | /* Add the (colon-separated) elements of DIRLIST_PTR to the |
| 1205 | library search path. */ |
| 1206 | |
| 1207 | static void |
| 1208 | set_default_dirlist (dirlist_ptr) |
| 1209 | char *dirlist_ptr; |
| 1210 | { |
| 1211 | char *p; |
| 1212 | |
| 1213 | while (1) |
| 1214 | { |
| 1215 | p = strchr (dirlist_ptr, PATH_SEPARATOR); |
| 1216 | if (p != NULL) |
| 1217 | *p = '\0'; |
| 1218 | if (*dirlist_ptr != '\0') |
| 1219 | ldfile_add_library_path (dirlist_ptr, TRUE); |
| 1220 | if (p == NULL) |
| 1221 | break; |
| 1222 | dirlist_ptr = p + 1; |
| 1223 | } |
| 1224 | } |
| 1225 | |
| 1226 | static void |
| 1227 | set_section_start (sect, valstr) |
| 1228 | char *sect, *valstr; |
| 1229 | { |
| 1230 | const char *end; |
| 1231 | bfd_vma val = bfd_scan_vma (valstr, &end, 16); |
| 1232 | if (*end) |
| 1233 | einfo (_("%P%F: invalid hex number `%s'\n"), valstr); |
| 1234 | lang_section_start (sect, exp_intop (val)); |
| 1235 | } |
| 1236 | \f |
| 1237 | /* Print help messages for the options. */ |
| 1238 | |
| 1239 | static void |
| 1240 | help () |
| 1241 | { |
| 1242 | unsigned i; |
| 1243 | const char **targets, **pp; |
| 1244 | |
| 1245 | printf (_("Usage: %s [options] file...\n"), program_name); |
| 1246 | |
| 1247 | printf (_("Options:\n")); |
| 1248 | for (i = 0; i < OPTION_COUNT; i++) |
| 1249 | { |
| 1250 | if (ld_options[i].doc != NULL) |
| 1251 | { |
| 1252 | bfd_boolean comma; |
| 1253 | int len; |
| 1254 | unsigned j; |
| 1255 | |
| 1256 | printf (" "); |
| 1257 | |
| 1258 | comma = FALSE; |
| 1259 | len = 2; |
| 1260 | |
| 1261 | j = i; |
| 1262 | do |
| 1263 | { |
| 1264 | if (ld_options[j].shortopt != '\0' |
| 1265 | && ld_options[j].control != NO_HELP) |
| 1266 | { |
| 1267 | printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt); |
| 1268 | len += (comma ? 2 : 0) + 2; |
| 1269 | if (ld_options[j].arg != NULL) |
| 1270 | { |
| 1271 | if (ld_options[j].opt.has_arg != optional_argument) |
| 1272 | { |
| 1273 | printf (" "); |
| 1274 | ++len; |
| 1275 | } |
| 1276 | printf ("%s", _(ld_options[j].arg)); |
| 1277 | len += strlen (_(ld_options[j].arg)); |
| 1278 | } |
| 1279 | comma = TRUE; |
| 1280 | } |
| 1281 | ++j; |
| 1282 | } |
| 1283 | while (j < OPTION_COUNT && ld_options[j].doc == NULL); |
| 1284 | |
| 1285 | j = i; |
| 1286 | do |
| 1287 | { |
| 1288 | if (ld_options[j].opt.name != NULL |
| 1289 | && ld_options[j].control != NO_HELP) |
| 1290 | { |
| 1291 | int two_dashes = |
| 1292 | (ld_options[j].control == TWO_DASHES |
| 1293 | || ld_options[j].control == EXACTLY_TWO_DASHES); |
| 1294 | |
| 1295 | printf ("%s-%s%s", |
| 1296 | comma ? ", " : "", |
| 1297 | two_dashes ? "-" : "", |
| 1298 | ld_options[j].opt.name); |
| 1299 | len += ((comma ? 2 : 0) |
| 1300 | + 1 |
| 1301 | + (two_dashes ? 1 : 0) |
| 1302 | + strlen (ld_options[j].opt.name)); |
| 1303 | if (ld_options[j].arg != NULL) |
| 1304 | { |
| 1305 | printf (" %s", _(ld_options[j].arg)); |
| 1306 | len += 1 + strlen (_(ld_options[j].arg)); |
| 1307 | } |
| 1308 | comma = TRUE; |
| 1309 | } |
| 1310 | ++j; |
| 1311 | } |
| 1312 | while (j < OPTION_COUNT && ld_options[j].doc == NULL); |
| 1313 | |
| 1314 | if (len >= 30) |
| 1315 | { |
| 1316 | printf ("\n"); |
| 1317 | len = 0; |
| 1318 | } |
| 1319 | |
| 1320 | for (; len < 30; len++) |
| 1321 | putchar (' '); |
| 1322 | |
| 1323 | printf ("%s\n", _(ld_options[i].doc)); |
| 1324 | } |
| 1325 | } |
| 1326 | |
| 1327 | /* Note: Various tools (such as libtool) depend upon the |
| 1328 | format of the listings below - do not change them. */ |
| 1329 | /* xgettext:c-format */ |
| 1330 | printf (_("%s: supported targets:"), program_name); |
| 1331 | targets = bfd_target_list (); |
| 1332 | for (pp = targets; *pp != NULL; pp++) |
| 1333 | printf (" %s", *pp); |
| 1334 | free (targets); |
| 1335 | printf ("\n"); |
| 1336 | |
| 1337 | /* xgettext:c-format */ |
| 1338 | printf (_("%s: supported emulations: "), program_name); |
| 1339 | ldemul_list_emulations (stdout); |
| 1340 | printf ("\n"); |
| 1341 | |
| 1342 | /* xgettext:c-format */ |
| 1343 | printf (_("%s: emulation specific options:\n"), program_name); |
| 1344 | ldemul_list_emulation_options (stdout); |
| 1345 | printf ("\n"); |
| 1346 | |
| 1347 | printf (_("Report bugs to %s\n"), REPORT_BUGS_TO); |
| 1348 | } |