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Improve Solaris compatability
[deliverable/binutils-gdb.git] / ld / lexsup.c
CommitLineData
252b5132 1/* Parse options for the GNU linker.
a2b64bed
NC		 2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001
252b5132
RH		 4 Free Software Foundation, Inc.
5
6This file is part of GLD, the Gnu Linker.
7
8GLD is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 2, or (at your option)
11any later version.
12
13GLD is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with GLD; see the file COPYING. If not, write to the Free
20Software Foundation, 59 Temple Place - Suite 330, Boston, MA
2102111-1307, USA. */
22
23#include "bfd.h"
24#include "sysdep.h"
25#include "libiberty.h"
26#include <stdio.h>
27#include <string.h>
28#include <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"
28c309a2 41#include "demangle.h"
252b5132
RH		 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
5cc18311 51/* Somewhere above, sys/stat.h got included . . . . */
252b5132
RH		 52#if !defined(S_ISDIR) && defined(S_IFDIR)
53#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
54#endif
55
56/* Omit args to avoid the possibility of clashing with a system header
57 that might disagree about consts. */
58unsigned long strtoul ();
59
3d9f6277 60static int is_num PARAMS ((const char *, int, int, int));
252b5132
RH		 61static void set_default_dirlist PARAMS ((char *dirlist_ptr));
62static void set_section_start PARAMS ((char *sect, char *valstr));
63static void help PARAMS ((void));
64
65/* Non-zero if we are processing a --defsym from the command line. */
66int 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
71#define OPTION_ASSERT 150
72#define OPTION_CALL_SHARED (OPTION_ASSERT + 1)
73#define OPTION_CREF (OPTION_CALL_SHARED + 1)
74#define OPTION_DEFSYM (OPTION_CREF + 1)
75#define OPTION_DEMANGLE (OPTION_DEFSYM + 1)
76#define OPTION_DYNAMIC_LINKER (OPTION_DEMANGLE + 1)
77#define OPTION_EB (OPTION_DYNAMIC_LINKER + 1)
78#define OPTION_EL (OPTION_EB + 1)
79#define OPTION_EMBEDDED_RELOCS (OPTION_EL + 1)
80#define OPTION_EXPORT_DYNAMIC (OPTION_EMBEDDED_RELOCS + 1)
81#define OPTION_HELP (OPTION_EXPORT_DYNAMIC + 1)
82#define OPTION_IGNORE (OPTION_HELP + 1)
83#define OPTION_MAP (OPTION_IGNORE + 1)
84#define OPTION_NO_DEMANGLE (OPTION_MAP + 1)
85#define OPTION_NO_KEEP_MEMORY (OPTION_NO_DEMANGLE + 1)
86#define OPTION_NO_WARN_MISMATCH (OPTION_NO_KEEP_MEMORY + 1)
87#define OPTION_NOINHIBIT_EXEC (OPTION_NO_WARN_MISMATCH + 1)
88#define OPTION_NON_SHARED (OPTION_NOINHIBIT_EXEC + 1)
89#define OPTION_NO_WHOLE_ARCHIVE (OPTION_NON_SHARED + 1)
90#define OPTION_OFORMAT (OPTION_NO_WHOLE_ARCHIVE + 1)
91#define OPTION_RELAX (OPTION_OFORMAT + 1)
92#define OPTION_RETAIN_SYMBOLS_FILE (OPTION_RELAX + 1)
93#define OPTION_RPATH (OPTION_RETAIN_SYMBOLS_FILE + 1)
94#define OPTION_RPATH_LINK (OPTION_RPATH + 1)
95#define OPTION_SHARED (OPTION_RPATH_LINK + 1)
96#define OPTION_SONAME (OPTION_SHARED + 1)
97#define OPTION_SORT_COMMON (OPTION_SONAME + 1)
98#define OPTION_STATS (OPTION_SORT_COMMON + 1)
99#define OPTION_SYMBOLIC (OPTION_STATS + 1)
100#define OPTION_TASK_LINK (OPTION_SYMBOLIC + 1)
101#define OPTION_TBSS (OPTION_TASK_LINK + 1)
102#define OPTION_TDATA (OPTION_TBSS + 1)
103#define OPTION_TTEXT (OPTION_TDATA + 1)
104#define OPTION_TRADITIONAL_FORMAT (OPTION_TTEXT + 1)
105#define OPTION_UR (OPTION_TRADITIONAL_FORMAT + 1)
106#define OPTION_VERBOSE (OPTION_UR + 1)
107#define OPTION_VERSION (OPTION_VERBOSE + 1)
108#define OPTION_VERSION_SCRIPT (OPTION_VERSION + 1)
109#define OPTION_VERSION_EXPORTS_SECTION (OPTION_VERSION_SCRIPT + 1)
110#define OPTION_WARN_COMMON (OPTION_VERSION_EXPORTS_SECTION + 1)
111#define OPTION_WARN_CONSTRUCTORS (OPTION_WARN_COMMON + 1)
7ce691ae
C		 112#define OPTION_WARN_FATAL (OPTION_WARN_CONSTRUCTORS + 1)
113#define OPTION_WARN_MULTIPLE_GP (OPTION_WARN_FATAL + 1)
252b5132
RH		 114#define OPTION_WARN_ONCE (OPTION_WARN_MULTIPLE_GP + 1)
115#define OPTION_WARN_SECTION_ALIGN (OPTION_WARN_ONCE + 1)
116#define OPTION_SPLIT_BY_RELOC (OPTION_WARN_SECTION_ALIGN + 1)
117#define OPTION_SPLIT_BY_FILE (OPTION_SPLIT_BY_RELOC + 1)
118#define OPTION_WHOLE_ARCHIVE (OPTION_SPLIT_BY_FILE + 1)
119#define OPTION_WRAP (OPTION_WHOLE_ARCHIVE + 1)
120#define OPTION_FORCE_EXE_SUFFIX (OPTION_WRAP + 1)
121#define OPTION_GC_SECTIONS (OPTION_FORCE_EXE_SUFFIX + 1)
122#define OPTION_NO_GC_SECTIONS (OPTION_GC_SECTIONS + 1)
123#define OPTION_CHECK_SECTIONS (OPTION_NO_GC_SECTIONS + 1)
124#define OPTION_NO_CHECK_SECTIONS (OPTION_CHECK_SECTIONS + 1)
125#define OPTION_MPC860C0 (OPTION_NO_CHECK_SECTIONS + 1)
126#define OPTION_NO_UNDEFINED (OPTION_MPC860C0 + 1)
3dbf70a2
MM		 127#define OPTION_INIT (OPTION_NO_UNDEFINED + 1)
128#define OPTION_FINI (OPTION_INIT + 1)
176355da 129#define OPTION_SECTION_START (OPTION_FINI + 1)
a854a4a7 130#define OPTION_UNIQUE (OPTION_SECTION_START + 1)
ea20a7da 131#define OPTION_TARGET_HELP (OPTION_UNIQUE + 1)
b79e8c78 132#define OPTION_ALLOW_SHLIB_UNDEFINED (OPTION_TARGET_HELP + 1)
f5fa8ca2 133#define OPTION_DISCARD_NONE (OPTION_ALLOW_SHLIB_UNDEFINED + 1)
252b5132
RH		 134
135/* The long options. This structure is used for both the option
136 parsing and the help text. */
137
b79e8c78
NC		 138struct ld_option
139{
252b5132
RH		 140 /* The long option information. */
141 struct option opt;
142 /* The short option with the same meaning ('\0' if none). */
143 char shortopt;
144 /* The name of the argument (NULL if none). */
145 const char *arg;
146 /* The documentation string. If this is NULL, this is a synonym for
147 the previous option. */
148 const char *doc;
e47d05ad
KH		 149 enum {
150 /* Use one dash before long option name. */
151 ONE_DASH,
152 /* Use two dashes before long option name. */
153 TWO_DASHES,
e4897a32
NC		 154 /* Only accept two dashes before the long option name.
155 This is an overloading of the use of this enum, since originally it
156 was only intended to tell the --help display function how to display
157 the long option name. This feature was added in order to resolve
158 the confusion about the -omagic command line switch. Is it setting
159 the output file name to "magic" or is it setting the NMAGIC flag on
160 the output ? It has been decided that it is setting the output file
161 name, and that if you want to set the NMAGIC flag you should use -N
162 or --omagic. */
163 EXACTLY_TWO_DASHES,
e47d05ad
KH		 164 /* Don't mention this option in --help output. */
165 NO_HELP
166 } control;
252b5132
RH		 167};
168
b79e8c78
NC		 169static const struct ld_option ld_options[] =
170{
252b5132
RH		 171 { {NULL, required_argument, NULL, '\0'},
172 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
173 ONE_DASH },
174 { {"architecture", required_argument, NULL, 'A'},
175 'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES },
176 { {"format", required_argument, NULL, 'b'},
177 'b', N_("TARGET"), N_("Specify target for following input files"), TWO_DASHES },
178 { {"mri-script", required_argument, NULL, 'c'},
179 'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES },
180 { {"dc", no_argument, NULL, 'd'},
181 'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
182 { {"dp", no_argument, NULL, 'd'},
183 '\0', NULL, NULL, ONE_DASH },
184 { {"entry", required_argument, NULL, 'e'},
185 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
186 { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
187 'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
188 { {"EB", no_argument, NULL, OPTION_EB},
189 '\0', NULL, N_("Link big-endian objects"), ONE_DASH },
190 { {"EL", no_argument, NULL, OPTION_EL},
191 '\0', NULL, N_("Link little-endian objects"), ONE_DASH },
192 { {"auxiliary", required_argument, NULL, 'f'},
193 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
194 TWO_DASHES },
195 { {"filter", required_argument, NULL, 'F'},
196 'F', N_("SHLIB"), N_("Filter for shared object symbol table"), TWO_DASHES },
197 { {NULL, no_argument, NULL, '\0'},
198 'g', NULL, N_("Ignored"), ONE_DASH },
199 { {"gpsize", required_argument, NULL, 'G'},
200 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
201 TWO_DASHES },
202 { {"soname", required_argument, NULL, OPTION_SONAME},
203 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
506eee22
NC		 204 { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
205 'I', N_("PROGRAM"), N_("Set the dynamic linker to use"), TWO_DASHES },
252b5132
RH		 206 { {"library", required_argument, NULL, 'l'},
207 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
208 { {"library-path", required_argument, NULL, 'L'},
209 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"), TWO_DASHES },
210 { {NULL, required_argument, NULL, '\0'},
211 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
212 { {"print-map", no_argument, NULL, 'M'},
213 'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
214 { {"nmagic", no_argument, NULL, 'n'},
215 'n', NULL, N_("Do not page align data"), TWO_DASHES },
216 { {"omagic", no_argument, NULL, 'N'},
217 'N', NULL, N_("Do not page align data, do not make text readonly"),
e4897a32 218 EXACTLY_TWO_DASHES },
252b5132 219 { {"output", required_argument, NULL, 'o'},
e4897a32 220 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
252b5132
RH		 221 { {NULL, required_argument, NULL, '\0'},
222 'O', NULL, N_("Optimize output file"), ONE_DASH },
223 { {"Qy", no_argument, NULL, OPTION_IGNORE},
224 '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
a712da20
NC		 225 { {"emit-relocs", no_argument, NULL, 'q'},
226 'q', NULL, "Generate relocations in final output", TWO_DASHES },
079a8e4a
NC		 227 { {"relocateable", no_argument, NULL, 'r'},
228 'r', NULL, N_("Generate relocateable output"), TWO_DASHES },
252b5132
RH		 229 { {NULL, no_argument, NULL, '\0'},
230 'i', NULL, NULL, ONE_DASH },
231 { {"just-symbols", required_argument, NULL, 'R'},
232 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
233 TWO_DASHES },
234 { {"strip-all", no_argument, NULL, 's'},
235 's', NULL, N_("Strip all symbols"), TWO_DASHES },
236 { {"strip-debug", no_argument, NULL, 'S'},
237 'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
238 { {"trace", no_argument, NULL, 't'},
239 't', NULL, N_("Trace file opens"), TWO_DASHES },
240 { {"script", required_argument, NULL, 'T'},
241 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
242 { {"undefined", required_argument, NULL, 'u'},
243 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"), TWO_DASHES },
577a0623
AM		 244 { {"unique", optional_argument, NULL, OPTION_UNIQUE},
245 '\0', N_("[=SECTION]"), N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES },
252b5132
RH		 246 { {"Ur", no_argument, NULL, OPTION_UR},
247 '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
248 { {"version", no_argument, NULL, OPTION_VERSION},
249 'v', NULL, N_("Print version information"), TWO_DASHES },
250 { {NULL, no_argument, NULL, '\0'},
251 'V', NULL, N_("Print version and emulation information"), ONE_DASH },
252 { {"discard-all", no_argument, NULL, 'x'},
253 'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
254 { {"discard-locals", no_argument, NULL, 'X'},
f5fa8ca2
JJ		 255 'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES },
256 { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE},
257 '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES },
252b5132
RH		 258 { {"trace-symbol", required_argument, NULL, 'y'},
259 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
260 { {NULL, required_argument, NULL, '\0'},
261 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"), ONE_DASH },
252b5132
RH		 262 { {"start-group", no_argument, NULL, '('},
263 '(', NULL, N_("Start a group"), TWO_DASHES },
264 { {"end-group", no_argument, NULL, ')'},
265 ')', NULL, N_("End a group"), TWO_DASHES },
266 { {"assert", required_argument, NULL, OPTION_ASSERT},
267 '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH },
268 { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
269 '\0', NULL, N_("Link against shared libraries"), ONE_DASH },
270 { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
271 '\0', NULL, NULL, ONE_DASH },
272 { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
273 '\0', NULL, NULL, ONE_DASH },
274 { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
275 '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH },
276 { {"dn", no_argument, NULL, OPTION_NON_SHARED},
277 '\0', NULL, NULL, ONE_DASH },
278 { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
279 '\0', NULL, NULL, ONE_DASH },
280 { {"static", no_argument, NULL, OPTION_NON_SHARED},
281 '\0', NULL, NULL, ONE_DASH },
282 { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
283 '\0', NULL, N_("Bind global references locally"), ONE_DASH },
284 { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS},
285 '\0', NULL, N_("Check section addresses for overlaps (default)"), TWO_DASHES },
286 { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS},
287 '\0', NULL, N_("Do not check section addresses for overlaps"),
288 TWO_DASHES },
289 { {"cref", no_argument, NULL, OPTION_CREF},
290 '\0', NULL, N_("Output cross reference table"), TWO_DASHES },
291 { {"defsym", required_argument, NULL, OPTION_DEFSYM},
292 '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
28c309a2
NC		 293 { {"demangle", optional_argument, NULL, OPTION_DEMANGLE},
294 '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"), TWO_DASHES },
252b5132
RH		 295 { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
296 '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
3dbf70a2
MM		 297 { {"fini", required_argument, NULL, OPTION_FINI},
298 '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH },
252b5132
RH		 299 { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
300 '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
301 { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
302 '\0', NULL, N_("Remove unused sections (on some targets)"),
303 TWO_DASHES },
304 { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS},
305 '\0', NULL, N_("Don't remove unused sections (default)"),
306 TWO_DASHES },
307 { {"help", no_argument, NULL, OPTION_HELP},
308 '\0', NULL, N_("Print option help"), TWO_DASHES },
3dbf70a2
MM		 309 { {"init", required_argument, NULL, OPTION_INIT},
310 '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH },
252b5132
RH		 311 { {"Map", required_argument, NULL, OPTION_MAP},
312 '\0', N_("FILE"), N_("Write a map file"), ONE_DASH },
313 { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
314 '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES },
315 { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
316 '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
317 { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
318 '\0', NULL, N_("Allow no undefined symbols"), TWO_DASHES },
b79e8c78
NC		 319 { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED},
320 '\0', NULL, N_("Allow undefined symbols in shared objects"), TWO_DASHES },
252b5132
RH		 321 { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
322 '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
323 { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
324 '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES },
325 { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
326 '\0', NULL, N_("Create an output file even if errors occur"), TWO_DASHES },
327 { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
328 '\0', NULL, NULL, NO_HELP },
329 { {"oformat", required_argument, NULL, OPTION_OFORMAT},
e4897a32 330 '\0', N_("TARGET"), N_("Specify target of output file"), EXACTLY_TWO_DASHES },
252b5132
RH		 331 { {"qmagic", no_argument, NULL, OPTION_IGNORE},
332 '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
333 { {"relax", no_argument, NULL, OPTION_RELAX},
334 '\0', NULL, N_("Relax branches on certain targets"), TWO_DASHES },
335 { {"retain-symbols-file", required_argument, NULL,
336 OPTION_RETAIN_SYMBOLS_FILE},
337 '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES },
338 { {"rpath", required_argument, NULL, OPTION_RPATH},
339 '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH },
340 { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
341 '\0', N_("PATH"), N_("Set link time shared library search path"), ONE_DASH },
342 { {"shared", no_argument, NULL, OPTION_SHARED},
343 '\0', NULL, N_("Create a shared library"), ONE_DASH },
344 { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */
345 '\0', NULL, NULL, ONE_DASH },
346 { {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
347 '\0', NULL, N_("Sort common symbols by size"), TWO_DASHES },
348 { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
349 '\0', NULL, NULL, NO_HELP },
a854a4a7
AM		 350 { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE},
351 '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"), TWO_DASHES },
352 { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC},
353 '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"), TWO_DASHES },
252b5132
RH		 354 { {"stats", no_argument, NULL, OPTION_STATS},
355 '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
ea20a7da
CC		 356 { {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
357 '\0', NULL, N_("Display target specific options"), TWO_DASHES },
252b5132
RH		 358 { {"task-link", required_argument, NULL, OPTION_TASK_LINK},
359 '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
360 { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
361 '\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
176355da
NC		 362 { {"section-start", required_argument, NULL, OPTION_SECTION_START},
363 '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"), TWO_DASHES },
252b5132
RH		 364 { {"Tbss", required_argument, NULL, OPTION_TBSS},
365 '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
366 { {"Tdata", required_argument, NULL, OPTION_TDATA},
367 '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH },
368 { {"Ttext", required_argument, NULL, OPTION_TTEXT},
369 '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH },
370 { {"verbose", no_argument, NULL, OPTION_VERBOSE},
371 '\0', NULL, N_("Output lots of information during link"), TWO_DASHES },
372 { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */
373 '\0', NULL, NULL, NO_HELP },
374 { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
375 '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
376 { {"version-exports-section", required_argument, NULL,
377 OPTION_VERSION_EXPORTS_SECTION },
b3043ee4 378 '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n\t\t\t\tSYMBOL as the version."),
252b5132
RH		 379 TWO_DASHES },
380 { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
381 '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
382 { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
383 '\0', NULL, N_("Warn if global constructors/destructors are seen"),
384 TWO_DASHES },
385 { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
386 '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
387 { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
388 '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
389 { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
390 '\0', NULL, N_("Warn if start of section changes due to alignment"),
391 TWO_DASHES },
7ce691ae
C		 392 { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
393 '\0', NULL, N_("Treat warnings as errors"),
394 TWO_DASHES },
252b5132
RH		 395 { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
396 '\0', NULL, N_("Include all objects from following archives"), TWO_DASHES },
397 { {"wrap", required_argument, NULL, OPTION_WRAP},
398 '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
399 { {"mpc860c0", optional_argument, NULL, OPTION_MPC860C0},
b3043ee4 400 '\0', N_("[=WORDS]"), N_("Modify problematic branches in last WORDS (1-10,\n\t\t\t\tdefault 5) words of a page"), TWO_DASHES }
252b5132
RH		 401};
402
e4897a32 403#define OPTION_COUNT ARRAY_SIZE (ld_options)
252b5132 404
3d9f6277
ILT		 405/* Test STRING for containing a string of digits that form a number
406 between MIN and MAX. The return value is the number or ERR. */
407
408static int
409is_num (string, min, max, err)
410 const char *string;
411 int min;
412 int max;
413 int err;
252b5132
RH		 414{
415 int result = 0;
416
3d9f6277 417 for (; *string; ++string)
252b5132 418 {
3d9f6277
ILT		 419 if (! isdigit (*string))
420 {
421 result = err;
422 break;
423 }
424 result = result * 10 + (*string - '0');
252b5132 425 }
252b5132
RH		 426 if (result < min || result > max)
427 result = err;
428
429 return result;
430}
431
432void
433parse_args (argc, argv)
e4897a32 434 unsigned argc;
252b5132
RH		 435 char **argv;
436{
e4897a32
NC		 437 unsigned i;
438 int is, il, irl;
252b5132
RH		 439 int ingroup = 0;
440 char *default_dirlist = NULL;
441 char shortopts[OPTION_COUNT * 3 + 2];
442 struct option longopts[OPTION_COUNT + 1];
e4897a32 443 struct option really_longopts[OPTION_COUNT + 1];
252b5132
RH		 444 int last_optind;
445
446 /* Starting the short option string with '-' is for programs that
447 expect options and other ARGV-elements in any order and that care about
448 the ordering of the two. We describe each non-option ARGV-element
449 as if it were the argument of an option with character code 1. */
450 shortopts[0] = '-';
451 is = 1;
452 il = 0;
e4897a32 453 irl = 0;
252b5132
RH		 454 for (i = 0; i < OPTION_COUNT; i++)
455 {
456 if (ld_options[i].shortopt != '\0')
457 {
458 shortopts[is] = ld_options[i].shortopt;
459 ++is;
460 if (ld_options[i].opt.has_arg == required_argument
461 || ld_options[i].opt.has_arg == optional_argument)
462 {
463 shortopts[is] = ':';
464 ++is;
465 if (ld_options[i].opt.has_arg == optional_argument)
466 {
467 shortopts[is] = ':';
468 ++is;
469 }
470 }
471 }
472 if (ld_options[i].opt.name != NULL)
473 {
e4897a32
NC		 474 if (ld_options[i].control == EXACTLY_TWO_DASHES)
475 {
476 really_longopts[irl] = ld_options[i].opt;
477 ++irl;
478 }
479 else
480 {
481 longopts[il] = ld_options[i].opt;
482 ++il;
483 }
252b5132
RH		 484 }
485 }
486 shortopts[is] = '\0';
487 longopts[il].name = NULL;
e4897a32 488 really_longopts[irl].name = NULL;
252b5132
RH		 489
490 /* The -G option is ambiguous on different platforms. Sometimes it
491 specifies the largest data size to put into the small data
492 section. Sometimes it is equivalent to --shared. Unfortunately,
493 the first form takes an argument, while the second does not.
494
495 We need to permit the --shared form because on some platforms,
496 such as Solaris, gcc -shared will pass -G to the linker.
497
498 To permit either usage, we look through the argument list. If we
499 find -G not followed by a number, we change it into --shared.
500 This will work for most normal cases. */
501 for (i = 1; i < argc; i++)
502 if (strcmp (argv[i], "-G") == 0
503 && (i + 1 >= argc
504 || ! isdigit ((unsigned char) argv[i + 1][0])))
505 argv[i] = (char *) "--shared";
506
507 /* Because we permit long options to start with a single dash, and
508 we have a --library option, and the -l option is conventionally
509 used with an immediately following argument, we can have bad
510 results if somebody tries to use -l with a library whose name
511 happens to start with "ibrary", as in -li. We avoid problems by
512 simply turning -l into --library. This means that users will
513 have to use two dashes in order to use --library, which is OK
514 since that's how it is documented.
515
516 FIXME: It's possible that this problem can arise for other short
517 options as well, although the user does always have the recourse
518 of adding a space between the option and the argument. */
519 for (i = 1; i < argc; i++)
520 {
521 if (argv[i][0] == '-'
522 && argv[i][1] == 'l'
523 && argv[i][2] != '\0')
524 {
525 char *n;
526
527 n = (char *) xmalloc (strlen (argv[i]) + 20);
528 sprintf (n, "--library=%s", argv[i] + 2);
529 argv[i] = n;
530 }
531 }
532
533 last_optind = -1;
534 while (1)
535 {
536 int longind;
537 int optc;
538
539 /* Using last_optind lets us avoid calling ldemul_parse_args
540 multiple times on a single option, which would lead to
541 confusion in the internal static variables maintained by
542 getopt. This could otherwise happen for an argument like
543 -nx, in which the -n is parsed as a single option, and we
544 loop around to pick up the -x. */
545 if (optind != last_optind)
546 {
547 if (ldemul_parse_args (argc, argv))
548 continue;
549 last_optind = optind;
550 }
551
552 /* getopt_long_only is like getopt_long, but '-' as well as '--'
553 can indicate a long option. */
0fc3347a 554 opterr = 0;
252b5132 555 optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
0fc3347a
NC		 556 if (optc == '?')
557 {
558 --optind;
559 optc = getopt_long (argc, argv, shortopts, really_longopts, &longind);
560 }
b7ed8fad 561
252b5132
RH		 562 if (optc == -1)
563 break;
0fc3347a 564
252b5132
RH		 565 switch (optc)
566 {
0fc3347a
NC		 567 case '?':
568 fprintf (stderr, _("%s: unrecognized option '%s'\n"),
569 program_name, argv[optind - 1]);
252b5132 570 default:
03983865
ILT		 571 fprintf (stderr,
572 _("%s: use the --help option for usage information\n"),
573 program_name);
252b5132
RH		 574 xexit (1);
575 case 1: /* File name. */
576 lang_add_input_file (optarg, lang_input_file_is_file_enum,
577 (char *) NULL);
578 break;
579
580 case OPTION_IGNORE:
581 break;
582 case 'a':
583 /* For HP/UX compatibility. Actually -a shared should mean
584 ``use only shared libraries'' but, then, we don't
585 currently support shared libraries on HP/UX anyhow. */
586 if (strcmp (optarg, "archive") == 0)
587 config.dynamic_link = false;
588 else if (strcmp (optarg, "shared") == 0
589 || strcmp (optarg, "default") == 0)
590 config.dynamic_link = true;
591 else
592 einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg);
593 break;
594 case OPTION_ASSERT:
595 /* FIXME: We just ignore these, but we should handle them. */
596 if (strcmp (optarg, "definitions") == 0)
597 ;
598 else if (strcmp (optarg, "nodefinitions") == 0)
599 ;
600 else if (strcmp (optarg, "nosymbolic") == 0)
601 ;
602 else if (strcmp (optarg, "pure-text") == 0)
603 ;
604 else
605 einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg);
606 break;
607 case 'A':
608 ldfile_add_arch (optarg);
609 break;
610 case 'b':
611 lang_add_target (optarg);
612 break;
613 case 'c':
614 ldfile_open_command_file (optarg);
615 parser_input = input_mri_script;
616 yyparse ();
617 break;
618 case OPTION_CALL_SHARED:
619 config.dynamic_link = true;
620 break;
621 case OPTION_NON_SHARED:
622 config.dynamic_link = false;
623 break;
624 case OPTION_CREF:
625 command_line.cref = true;
626 link_info.notice_all = true;
627 break;
628 case 'd':
629 command_line.force_common_definition = true;
630 break;
631 case OPTION_DEFSYM:
632 lex_string = optarg;
633 lex_redirect (optarg);
634 parser_input = input_defsym;
635 parsing_defsym = 1;
636 yyparse ();
637 parsing_defsym = 0;
638 lex_string = NULL;
639 break;
640 case OPTION_DEMANGLE:
641 demangling = true;
28c309a2
NC		 642 if (optarg != NULL)
643 {
644 enum demangling_styles style;
5cc18311 645
28c309a2 646 style = cplus_demangle_name_to_style (optarg);
5cc18311 647 if (style == unknown_demangling)
28c309a2
NC		 648 einfo (_("%F%P: unknown demangling style `%s'"),
649 optarg);
5cc18311 650
28c309a2 651 cplus_demangle_set_style (style);
e47d05ad 652 }
252b5132 653 break;
506eee22 654 case 'I': /* Used on Solaris. */
252b5132
RH		 655 case OPTION_DYNAMIC_LINKER:
656 command_line.interpreter = optarg;
657 break;
658 case OPTION_EB:
659 command_line.endian = ENDIAN_BIG;
660 break;
661 case OPTION_EL:
662 command_line.endian = ENDIAN_LITTLE;
663 break;
664 case OPTION_EMBEDDED_RELOCS:
665 command_line.embedded_relocs = true;
666 break;
667 case OPTION_EXPORT_DYNAMIC:
668 case 'E': /* HP/UX compatibility. */
669 command_line.export_dynamic = true;
670 break;
671 case 'e':
672 lang_add_entry (optarg, true);
673 break;
674 case 'f':
675 if (command_line.auxiliary_filters == NULL)
676 {
677 command_line.auxiliary_filters =
678 (char **) xmalloc (2 * sizeof (char *));
679 command_line.auxiliary_filters[0] = optarg;
680 command_line.auxiliary_filters[1] = NULL;
681 }
682 else
683 {
684 int c;
685 char **p;
686
687 c = 0;
688 for (p = command_line.auxiliary_filters; *p != NULL; p++)
689 ++c;
690 command_line.auxiliary_filters =
691 (char **) xrealloc (command_line.auxiliary_filters,
692 (c + 2) * sizeof (char *));
693 command_line.auxiliary_filters[c] = optarg;
694 command_line.auxiliary_filters[c + 1] = NULL;
695 }
696 break;
697 case 'F':
698 command_line.filter_shlib = optarg;
699 break;
700 case OPTION_FORCE_EXE_SUFFIX:
701 command_line.force_exe_suffix = true;
702 break;
703 case 'G':
704 {
705 char *end;
706 g_switch_value = strtoul (optarg, &end, 0);
707 if (*end)
708 einfo (_("%P%F: invalid number `%s'\n"), optarg);
709 }
710 break;
711 case 'g':
712 /* Ignore. */
713 break;
714 case OPTION_GC_SECTIONS:
715 command_line.gc_sections = true;
716 break;
717 case OPTION_HELP:
718 help ();
719 xexit (0);
720 break;
721 case 'L':
722 ldfile_add_library_path (optarg, true);
723 break;
724 case 'l':
725 lang_add_input_file (optarg, lang_input_file_is_l_enum,
726 (char *) NULL);
727 break;
728 case 'M':
729 config.map_filename = "-";
730 break;
731 case 'm':
732 /* Ignore. Was handled in a pre-parse. */
733 break;
734 case OPTION_MAP:
735 config.map_filename = optarg;
736 break;
737 case 'N':
738 config.text_read_only = false;
739 config.magic_demand_paged = false;
740 config.dynamic_link = false;
741 break;
742 case 'n':
743 config.magic_demand_paged = false;
744 config.dynamic_link = false;
745 break;
746 case OPTION_NO_DEMANGLE:
747 demangling = false;
748 break;
749 case OPTION_NO_GC_SECTIONS:
750 command_line.gc_sections = false;
751 break;
752 case OPTION_NO_KEEP_MEMORY:
753 link_info.keep_memory = false;
754 break;
755 case OPTION_NO_UNDEFINED:
756 link_info.no_undefined = true;
757 break;
b79e8c78
NC		 758 case OPTION_ALLOW_SHLIB_UNDEFINED:
759 link_info.allow_shlib_undefined = true;
760 break;
252b5132
RH		 761 case OPTION_NO_WARN_MISMATCH:
762 command_line.warn_mismatch = false;
763 break;
764 case OPTION_NOINHIBIT_EXEC:
765 force_make_executable = true;
766 break;
767 case OPTION_NO_WHOLE_ARCHIVE:
768 whole_archive = false;
769 break;
770 case 'O':
771 /* FIXME "-O<non-digits> <value>" used to set the address of
772 section <non-digits>. Was this for compatibility with
773 something, or can we create a new option to do that
774 (with a syntax similar to -defsym)?
775 getopt can't handle two args to an option without kludges. */
776
777 /* Enable optimizations of output files. */
778 link_info.optimize = strtoul (optarg, NULL, 0) ? true : false;
779 break;
780 case 'o':
5cc18311 781 lang_add_output (optarg, 0);
252b5132
RH		 782 break;
783 case OPTION_OFORMAT:
784 lang_add_output_format (optarg, (char *) NULL, (char *) NULL, 0);
785 break;
a712da20
NC		 786 case 'q':
787 link_info.emitrelocations = true;
788 break;
8c5ff972 789 case 'i':
252b5132
RH		 790 case 'r':
791 link_info.relocateable = true;
792 config.build_constructors = false;
793 config.magic_demand_paged = false;
794 config.text_read_only = false;
795 config.dynamic_link = false;
796 break;
797 case 'R':
798 /* The GNU linker traditionally uses -R to mean to include
799 only the symbols from a file. The Solaris linker uses -R
800 to set the path used by the runtime linker to find
801 libraries. This is the GNU linker -rpath argument. We
802 try to support both simultaneously by checking the file
803 named. If it is a directory, rather than a regular file,
804 we assume -rpath was meant. */
805 {
806 struct stat s;
807
808 if (stat (optarg, &s) >= 0
809 && ! S_ISDIR (s.st_mode))
810 {
811 lang_add_input_file (optarg,
812 lang_input_file_is_symbols_only_enum,
813 (char *) NULL);
814 break;
815 }
816 }
817 /* Fall through. */
818 case OPTION_RPATH:
819 if (command_line.rpath == NULL)
d1b2b2dc 820 command_line.rpath = xstrdup (optarg);
252b5132
RH		 821 else
822 {
823 size_t rpath_len = strlen (command_line.rpath);
824 size_t optarg_len = strlen (optarg);
825 char *buf;
826 char *cp = command_line.rpath;
827
828 /* First see whether OPTARG is already in the path. */
829 do
830 {
831 size_t idx = 0;
832 while (optarg[idx] != '\0' && optarg[idx] == cp[idx])
833 ++idx;
834 if (optarg[idx] == '\0'
835 && (cp[idx] == '\0' || cp[idx] == ':'))
836 /* We found it. */
837 break;
838
839 /* Not yet found. */
840 cp = strchr (cp, ':');
841 if (cp != NULL)
842 ++cp;
843 }
844 while (cp != NULL);
845
846 if (cp == NULL)
847 {
848 buf = xmalloc (rpath_len + optarg_len + 2);
849 sprintf (buf, "%s:%s", command_line.rpath, optarg);
850 free (command_line.rpath);
851 command_line.rpath = buf;
852 }
853 }
854 break;
855 case OPTION_RPATH_LINK:
856 if (command_line.rpath_link == NULL)
d1b2b2dc 857 command_line.rpath_link = xstrdup (optarg);
252b5132
RH		 858 else
859 {
860 char *buf;
861
862 buf = xmalloc (strlen (command_line.rpath_link)
863 + strlen (optarg)
864 + 2);
865 sprintf (buf, "%s:%s", command_line.rpath_link, optarg);
866 free (command_line.rpath_link);
867 command_line.rpath_link = buf;
868 }
869 break;
870 case OPTION_RELAX:
871 command_line.relax = true;
872 break;
873 case OPTION_RETAIN_SYMBOLS_FILE:
874 add_keepsyms_file (optarg);
875 break;
876 case 'S':
877 link_info.strip = strip_debugger;
878 break;
879 case 's':
880 link_info.strip = strip_all;
881 break;
882 case OPTION_SHARED:
883 if (config.has_shared)
884 link_info.shared = true;
885 else
886 einfo (_("%P%F: -shared not supported\n"));
887 break;
888 case 'h': /* Used on Solaris. */
889 case OPTION_SONAME:
890 command_line.soname = optarg;
891 break;
892 case OPTION_SORT_COMMON:
893 config.sort_common = true;
894 break;
895 case OPTION_STATS:
896 config.stats = true;
897 break;
898 case OPTION_SYMBOLIC:
899 link_info.symbolic = true;
900 break;
901 case 't':
902 trace_files = true;
903 break;
904 case 'T':
905 ldfile_open_command_file (optarg);
906 parser_input = input_script;
907 yyparse ();
908 break;
176355da
NC		 909 case OPTION_SECTION_START:
910 {
911 char *optarg2;
227aeb07
AM		 912 char *sec_name;
913 int len;
176355da
NC		 914
915 /* Check for <something>=<somthing>... */
916 optarg2 = strchr (optarg, '=');
917 if (optarg2 == NULL)
918 {
919 fprintf (stderr,
920 _("%s: Invalid argument to option \"--section-start\"\n"),
921 program_name);
922 xexit (1);
923 }
924
e47d05ad 925 optarg2++;
5cc18311 926
176355da
NC		 927 /* So far so good. Are all the args present? */
928 if ((*optarg == '\0') || (*optarg2 == '\0'))
929 {
930 fprintf (stderr,
931 _("%s: Missing argument(s) to option \"--section-start\"\n"),
932 program_name);
933 xexit (1);
934 }
935
227aeb07
AM		 936 /* We must copy the section name as set_section_start
937 doesn't do it for us. */
938 len = optarg2 - optarg;
939 sec_name = xmalloc (len);
940 memcpy (sec_name, optarg, len - 1);
941 sec_name[len - 1] = 0;
176355da
NC		 942
943 /* Then set it... */
227aeb07 944 set_section_start (sec_name, optarg2);
176355da
NC		 945 }
946 break;
ea20a7da
CC		 947 case OPTION_TARGET_HELP:
948 /* Mention any target specific options. */
949 ldemul_list_emulation_options (stdout);
950 exit (0);
252b5132
RH		 951 case OPTION_TBSS:
952 set_section_start (".bss", optarg);
953 break;
954 case OPTION_TDATA:
955 set_section_start (".data", optarg);
956 break;
957 case OPTION_TTEXT:
958 set_section_start (".text", optarg);
959 break;
960 case OPTION_TRADITIONAL_FORMAT:
961 link_info.traditional_format = true;
962 break;
963 case OPTION_TASK_LINK:
964 link_info.task_link = true;
965 /* Fall through - do an implied -r option. */
966 case OPTION_UR:
967 link_info.relocateable = true;
968 config.build_constructors = true;
969 config.magic_demand_paged = false;
970 config.text_read_only = false;
971 config.dynamic_link = false;
972 break;
973 case 'u':
974 ldlang_add_undef (optarg);
975 break;
a854a4a7 976 case OPTION_UNIQUE:
577a0623
AM		 977 if (optarg != NULL)
978 lang_add_unique (optarg);
979 else
980 config.unique_orphan_sections = true;
a854a4a7 981 break;
252b5132
RH		 982 case OPTION_VERBOSE:
983 ldversion (1);
984 version_printed = true;
985 trace_file_tries = true;
986 break;
987 case 'v':
988 ldversion (0);
989 version_printed = true;
990 break;
991 case 'V':
992 ldversion (1);
993 version_printed = true;
994 break;
995 case OPTION_VERSION:
996 /* This output is intended to follow the GNU standards document. */
997 printf ("GNU ld %s\n", ld_program_version);
d0398d6a 998 printf (_("Copyright 2001 Free Software Foundation, Inc.\n"));
252b5132
RH		 999 printf (_("\
1000This program is free software; you may redistribute it under the terms of\n\
1001the GNU General Public License. This program has absolutely no warranty.\n"));
1002 {
1003 ld_emulation_xfer_type **ptr = ld_emulations;
5cc18311 1004
252b5132 1005 printf (_(" Supported emulations:\n"));
5cc18311 1006 while (*ptr)
252b5132
RH		 1007 {
1008 printf (" %s\n", (*ptr)->emulation_name);
1009 ptr++;
1010 }
1011 }
1012 xexit (0);
1013 break;
1014 case OPTION_VERSION_SCRIPT:
1015 /* This option indicates a small script that only specifies
1016 version information. Read it, but don't assume that
1017 we've seen a linker script. */
1018 {
1019 boolean hold_had_script;
1020
1021 hold_had_script = had_script;
1022 ldfile_open_command_file (optarg);
1023 had_script = hold_had_script;
1024 parser_input = input_version_script;
1025 yyparse ();
1026 }
1027 break;
1028 case OPTION_VERSION_EXPORTS_SECTION:
1029 /* This option records a version symbol to be applied to the
1030 symbols listed for export to be found in the object files
1031 .exports sections. */
1032 command_line.version_exports_section = optarg;
1033 break;
1034 case OPTION_WARN_COMMON:
1035 config.warn_common = true;
1036 break;
1037 case OPTION_WARN_CONSTRUCTORS:
1038 config.warn_constructors = true;
1039 break;
7ce691ae
C		 1040 case OPTION_WARN_FATAL:
1041 config.fatal_warnings = true;
1042 break;
252b5132
RH		 1043 case OPTION_WARN_MULTIPLE_GP:
1044 config.warn_multiple_gp = true;
1045 break;
1046 case OPTION_WARN_ONCE:
1047 config.warn_once = true;
1048 break;
1049 case OPTION_WARN_SECTION_ALIGN:
1050 config.warn_section_align = true;
1051 break;
1052 case OPTION_WHOLE_ARCHIVE:
1053 whole_archive = true;
1054 break;
1055 case OPTION_WRAP:
1056 add_wrap (optarg);
1057 break;
f5fa8ca2
JJ		 1058 case OPTION_DISCARD_NONE:
1059 link_info.discard = discard_none;
1060 break;
252b5132
RH		 1061 case 'X':
1062 link_info.discard = discard_l;
1063 break;
1064 case 'x':
1065 link_info.discard = discard_all;
1066 break;
1067 case 'Y':
1068 if (strncmp (optarg, "P,", 2) == 0)
1069 optarg += 2;
1070 default_dirlist = xstrdup (optarg);
1071 break;
1072 case 'y':
1073 add_ysym (optarg);
1074 break;
252b5132 1075 case OPTION_SPLIT_BY_RELOC:
a854a4a7
AM		 1076 if (optarg != NULL)
1077 config.split_by_reloc = strtoul (optarg, NULL, 0);
1078 else
1079 config.split_by_reloc = 32768;
5cc18311 1080 break;
252b5132 1081 case OPTION_SPLIT_BY_FILE:
a854a4a7
AM		 1082 if (optarg != NULL)
1083 config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
1084 else
1085 config.split_by_file = 1;
5cc18311 1086 break;
252b5132
RH		 1087 case OPTION_CHECK_SECTIONS:
1088 command_line.check_section_addresses = true;
1089 break;
1090 case OPTION_NO_CHECK_SECTIONS:
1091 command_line.check_section_addresses = false;
1092 break;
1093 case '(':
1094 if (ingroup)
1095 {
1096 fprintf (stderr,
1097 _("%s: may not nest groups (--help for usage)\n"),
1098 program_name);
1099 xexit (1);
1100 }
1101 lang_enter_group ();
1102 ingroup = 1;
1103 break;
1104 case ')':
1105 if (! ingroup)
1106 {
1107 fprintf (stderr,
1108 _("%s: group ended before it began (--help for usage)\n"),
1109 program_name);
1110 xexit (1);
1111 }
1112 lang_leave_group ();
1113 ingroup = 0;
1114 break;
e47d05ad
KH		 1115 case OPTION_MPC860C0:
1116 link_info.mpc860c0 = 20; /* default value (in bytes) */
1117 if (optarg)
1118 {
1119 unsigned words;
252b5132 1120
e47d05ad
KH		 1121 words = is_num (optarg, 1, 10, 0);
1122 if (words == 0)
1123 {
1124 fprintf (stderr,
3d9f6277
ILT		 1125 _("%s: Invalid argument to option \"mpc860c0\"\n"),
1126 program_name);
e47d05ad
KH		 1127 xexit (1);
1128 }
1129 link_info.mpc860c0 = words * 4; /* convert words to bytes */
1130 }
1131 command_line.relax = true;
1132 break;
3dbf70a2
MM		 1133
1134 case OPTION_INIT:
1135 link_info.init_function = optarg;
1136 break;
5cc18311 1137
3dbf70a2
MM		 1138 case OPTION_FINI:
1139 link_info.fini_function = optarg;
1140 break;
252b5132
RH		 1141 }
1142 }
1143
1144 if (ingroup)
1145 lang_leave_group ();
1146
1147 if (default_dirlist != NULL)
1148 set_default_dirlist (default_dirlist);
1149
1150}
1151
1152/* Add the (colon-separated) elements of DIRLIST_PTR to the
1153 library search path. */
1154
1155static void
1156set_default_dirlist (dirlist_ptr)
1157 char *dirlist_ptr;
1158{
1159 char *p;
1160
1161 while (1)
1162 {
1163 p = strchr (dirlist_ptr, PATH_SEPARATOR);
1164 if (p != NULL)
1165 *p = '\0';
1166 if (*dirlist_ptr != '\0')
1167 ldfile_add_library_path (dirlist_ptr, true);
1168 if (p == NULL)
1169 break;
1170 dirlist_ptr = p + 1;
1171 }
1172}
1173
1174static void
1175set_section_start (sect, valstr)
1176 char *sect, *valstr;
1177{
93697284
AM		 1178 const char *end;
1179 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
252b5132
RH		 1180 if (*end)
1181 einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1182 lang_section_start (sect, exp_intop (val));
1183}
1184\f
1185/* Print help messages for the options. */
1186
1187static void
1188help ()
1189{
e4897a32 1190 unsigned i;
252b5132
RH		 1191 const char **targets, **pp;
1192
1193 printf (_("Usage: %s [options] file...\n"), program_name);
1194
1195 printf (_("Options:\n"));
1196 for (i = 0; i < OPTION_COUNT; i++)
1197 {
1198 if (ld_options[i].doc != NULL)
1199 {
1200 boolean comma;
1201 int len;
e4897a32 1202 unsigned j;
252b5132
RH		 1203
1204 printf (" ");
1205
1206 comma = false;
1207 len = 2;
1208
1209 j = i;
1210 do
1211 {
1212 if (ld_options[j].shortopt != '\0'
1213 && ld_options[j].control != NO_HELP)
1214 {
1215 printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
1216 len += (comma ? 2 : 0) + 2;
1217 if (ld_options[j].arg != NULL)
1218 {
1219 if (ld_options[j].opt.has_arg != optional_argument)
1220 {
1221 printf (" ");
1222 ++len;
1223 }
1224 printf ("%s", _(ld_options[j].arg));
1225 len += strlen (_(ld_options[j].arg));
1226 }
1227 comma = true;
1228 }
1229 ++j;
1230 }
1231 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1232
1233 j = i;
1234 do
1235 {
1236 if (ld_options[j].opt.name != NULL
1237 && ld_options[j].control != NO_HELP)
1238 {
e4897a32
NC		 1239 int two_dashes =
1240 (ld_options[j].control == TWO_DASHES
1241 || ld_options[j].control == EXACTLY_TWO_DASHES);
1242
252b5132
RH		 1243 printf ("%s-%s%s",
1244 comma ? ", " : "",
e4897a32 1245 two_dashes ? "-" : "",
252b5132
RH		 1246 ld_options[j].opt.name);
1247 len += ((comma ? 2 : 0)
1248 + 1
e4897a32 1249 + (two_dashes ? 1 : 0)
252b5132
RH		 1250 + strlen (ld_options[j].opt.name));
1251 if (ld_options[j].arg != NULL)
1252 {
1253 printf (" %s", _(ld_options[j].arg));
1254 len += 1 + strlen (_(ld_options[j].arg));
1255 }
1256 comma = true;
1257 }
1258 ++j;
1259 }
1260 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1261
1262 if (len >= 30)
1263 {
1264 printf ("\n");
1265 len = 0;
1266 }
1267
1268 for (; len < 30; len++)
1269 putchar (' ');
1270
1271 printf ("%s\n", _(ld_options[i].doc));
1272 }
1273 }
1274
f75692fe
NC		 1275 /* Note: Various tools (such as libtool) depend upon the
1276 format of the listings below - do not change them. */
252b5132 1277 /* xgettext:c-format */
f75692fe 1278 printf (_("%s: supported targets:"), program_name);
252b5132
RH		 1279 targets = bfd_target_list ();
1280 for (pp = targets; *pp != NULL; pp++)
1281 printf (" %s", *pp);
1282 free (targets);
1283 printf ("\n");
1284
1285 /* xgettext:c-format */
f75692fe 1286 printf (_("%s: supported emulations: "), program_name);
252b5132
RH		 1287 ldemul_list_emulations (stdout);
1288 printf ("\n");
1289
1290 /* xgettext:c-format */
1291 printf (_("%s: emulation specific options:\n"), program_name);
1292 ldemul_list_emulation_options (stdout);
1293 printf ("\n");
c20f4f8c 1294
8ad3436c 1295 printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);
252b5132 1296}
GDB Binutils - Deliverables
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