Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* Main program of GNU linker. |
82704155 | 2 | Copyright (C) 1991-2019 Free Software Foundation, Inc. |
252b5132 RH |
3 | Written by Steve Chamberlain steve@cygnus.com |
4 | ||
f96b4a7b | 5 | This file is part of the GNU Binutils. |
252b5132 | 6 | |
f96b4a7b | 7 | This program is free software; you can redistribute it and/or modify |
2fa9fc65 | 8 | it under the terms of the GNU General Public License as published by |
f96b4a7b NC |
9 | the Free Software Foundation; either version 3 of the License, or |
10 | (at your option) any later version. | |
252b5132 | 11 | |
f96b4a7b | 12 | This program is distributed in the hope that it will be useful, |
2fa9fc65 NC |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
2fa9fc65 | 17 | You should have received a copy of the GNU General Public License |
f96b4a7b NC |
18 | along with this program; if not, write to the Free Software |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
20 | MA 02110-1301, USA. */ | |
252b5132 | 21 | |
252b5132 | 22 | #include "sysdep.h" |
3db64b00 | 23 | #include "bfd.h" |
3882b010 | 24 | #include "safe-ctype.h" |
252b5132 RH |
25 | #include "libiberty.h" |
26 | #include "progress.h" | |
27 | #include "bfdlink.h" | |
5af11cab | 28 | #include "filenames.h" |
252b5132 RH |
29 | |
30 | #include "ld.h" | |
31 | #include "ldmain.h" | |
32 | #include "ldmisc.h" | |
33 | #include "ldwrite.h" | |
252b5132 RH |
34 | #include "ldexp.h" |
35 | #include "ldlang.h" | |
df2a7313 | 36 | #include <ldgram.h> |
252b5132 RH |
37 | #include "ldlex.h" |
38 | #include "ldfile.h" | |
b71e2778 | 39 | #include "ldemul.h" |
252b5132 | 40 | #include "ldctor.h" |
5d3236ee DK |
41 | #ifdef ENABLE_PLUGINS |
42 | #include "plugin.h" | |
43 | #include "plugin-api.h" | |
5d3236ee | 44 | #endif /* ENABLE_PLUGINS */ |
252b5132 | 45 | |
0125cdf2 | 46 | /* Somewhere above, sys/stat.h got included. */ |
252b5132 RH |
47 | #if !defined(S_ISDIR) && defined(S_IFDIR) |
48 | #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) | |
49 | #endif | |
50 | ||
51 | #include <string.h> | |
52 | ||
9c8ebd6a DJ |
53 | #ifndef TARGET_SYSTEM_ROOT |
54 | #define TARGET_SYSTEM_ROOT "" | |
55 | #endif | |
56 | ||
252b5132 RH |
57 | /* EXPORTS */ |
58 | ||
53d25da6 AM |
59 | FILE *saved_script_handle = NULL; |
60 | FILE *previous_script_handle = NULL; | |
61 | bfd_boolean force_make_executable = FALSE; | |
62 | ||
252b5132 RH |
63 | char *default_target; |
64 | const char *output_filename = "a.out"; | |
65 | ||
66 | /* Name this program was invoked by. */ | |
67 | char *program_name; | |
68 | ||
9c8ebd6a | 69 | /* The prefix for system library directories. */ |
e2243057 | 70 | const char *ld_sysroot; |
9c8ebd6a | 71 | |
3fe38064 | 72 | /* The canonical representation of ld_sysroot. */ |
0aa7f586 | 73 | char *ld_canon_sysroot; |
3fe38064 NC |
74 | int ld_canon_sysroot_len; |
75 | ||
e8044f35 | 76 | /* Set by -G argument, for targets like MIPS ELF. */ |
252b5132 RH |
77 | int g_switch_value = 8; |
78 | ||
79 | /* Nonzero means print names of input files as processed. */ | |
727a29ba | 80 | unsigned int trace_files; |
252b5132 | 81 | |
cd6f1cf3 NC |
82 | /* Nonzero means report actions taken by the linker, and describe the linker script in use. */ |
83 | bfd_boolean verbose; | |
252b5132 RH |
84 | |
85 | /* Nonzero means version number was printed, so exit successfully | |
86 | instead of complaining if no input files are given. */ | |
b34976b6 | 87 | bfd_boolean version_printed; |
252b5132 | 88 | |
b34976b6 AM |
89 | /* TRUE if we should demangle symbol names. */ |
90 | bfd_boolean demangling; | |
252b5132 RH |
91 | |
92 | args_type command_line; | |
93 | ||
94 | ld_config_type config; | |
95 | ||
bcaa7b3e L |
96 | sort_type sort_section; |
97 | ||
e2243057 RS |
98 | static const char *get_sysroot |
99 | (int, char **); | |
0125cdf2 | 100 | static char *get_emulation |
1579bae1 | 101 | (int, char **); |
0125cdf2 | 102 | static bfd_boolean add_archive_element |
5d3236ee | 103 | (struct bfd_link_info *, bfd *, const char *, bfd **); |
1a72702b | 104 | static void multiple_definition |
24f58f47 | 105 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
1579bae1 | 106 | bfd *, asection *, bfd_vma); |
1a72702b | 107 | static void multiple_common |
24f58f47 AM |
108 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
109 | bfd *, enum bfd_link_hash_type, bfd_vma); | |
1a72702b | 110 | static void add_to_set |
1579bae1 AM |
111 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
112 | bfd_reloc_code_real_type, bfd *, asection *, bfd_vma); | |
1a72702b | 113 | static void constructor_callback |
1579bae1 AM |
114 | (struct bfd_link_info *, bfd_boolean, const char *, bfd *, |
115 | asection *, bfd_vma); | |
1a72702b | 116 | static void warning_callback |
1579bae1 AM |
117 | (struct bfd_link_info *, const char *, const char *, bfd *, |
118 | asection *, bfd_vma); | |
0125cdf2 | 119 | static void warning_find_reloc |
1579bae1 | 120 | (bfd *, asection *, void *); |
1a72702b | 121 | static void undefined_symbol |
1579bae1 AM |
122 | (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma, |
123 | bfd_boolean); | |
1a72702b | 124 | static void reloc_overflow |
dfeffb9f L |
125 | (struct bfd_link_info *, struct bfd_link_hash_entry *, const char *, |
126 | const char *, bfd_vma, bfd *, asection *, bfd_vma); | |
1a72702b | 127 | static void reloc_dangerous |
1579bae1 | 128 | (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma); |
1a72702b | 129 | static void unattached_reloc |
1579bae1 | 130 | (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma); |
0125cdf2 | 131 | static bfd_boolean notice |
35ed3f94 | 132 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
46135103 | 133 | struct bfd_link_hash_entry *, bfd *, asection *, bfd_vma, flagword); |
0125cdf2 NC |
134 | |
135 | static struct bfd_link_callbacks link_callbacks = | |
136 | { | |
252b5132 RH |
137 | add_archive_element, |
138 | multiple_definition, | |
139 | multiple_common, | |
140 | add_to_set, | |
141 | constructor_callback, | |
142 | warning_callback, | |
143 | undefined_symbol, | |
144 | reloc_overflow, | |
145 | reloc_dangerous, | |
146 | unattached_reloc, | |
e1fffbe6 | 147 | notice, |
2889e75b | 148 | einfo, |
49fa1e15 AM |
149 | info_msg, |
150 | minfo, | |
2889e75b | 151 | ldlang_override_segment_assignment |
252b5132 RH |
152 | }; |
153 | ||
3b66a141 | 154 | static bfd_assert_handler_type default_bfd_assert_handler; |
4519d071 | 155 | static bfd_error_handler_type default_bfd_error_handler; |
3b66a141 | 156 | |
252b5132 RH |
157 | struct bfd_link_info link_info; |
158 | \f | |
159 | static void | |
498cd2a0 | 160 | ld_cleanup (void) |
252b5132 | 161 | { |
498cd2a0 AM |
162 | bfd_cache_close_all (); |
163 | #ifdef ENABLE_PLUGINS | |
164 | plugin_call_cleanup (); | |
165 | #endif | |
166 | if (output_filename && delete_output_file_on_failure) | |
167 | unlink_if_ordinary (output_filename); | |
252b5132 RH |
168 | } |
169 | ||
4519d071 | 170 | /* Hook to notice BFD assertions. */ |
3b66a141 HPN |
171 | |
172 | static void | |
173 | ld_bfd_assert_handler (const char *fmt, const char *bfdver, | |
174 | const char *file, int line) | |
175 | { | |
3b66a141 | 176 | config.make_executable = FALSE; |
4519d071 AM |
177 | (*default_bfd_assert_handler) (fmt, bfdver, file, line); |
178 | } | |
179 | ||
180 | /* Hook the bfd error/warning handler for --fatal-warnings. */ | |
181 | ||
182 | static void | |
183 | ld_bfd_error_handler (const char *fmt, va_list ap) | |
184 | { | |
185 | if (config.fatal_warnings) | |
186 | config.make_executable = FALSE; | |
187 | (*default_bfd_error_handler) (fmt, ap); | |
3b66a141 HPN |
188 | } |
189 | ||
252b5132 | 190 | int |
1579bae1 | 191 | main (int argc, char **argv) |
252b5132 RH |
192 | { |
193 | char *emulation; | |
194 | long start_time = get_run_time (); | |
195 | ||
196 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) | |
197 | setlocale (LC_MESSAGES, ""); | |
3882b010 L |
198 | #endif |
199 | #if defined (HAVE_SETLOCALE) | |
200 | setlocale (LC_CTYPE, ""); | |
252b5132 RH |
201 | #endif |
202 | bindtextdomain (PACKAGE, LOCALEDIR); | |
203 | textdomain (PACKAGE); | |
204 | ||
205 | program_name = argv[0]; | |
206 | xmalloc_set_program_name (program_name); | |
207 | ||
208 | START_PROGRESS (program_name, 0); | |
209 | ||
869b9d07 MM |
210 | expandargv (&argc, &argv); |
211 | ||
bf2dd8d7 AM |
212 | if (bfd_init () != BFD_INIT_MAGIC) |
213 | einfo (_("%F%P: fatal error: libbfd ABI mismatch\n")); | |
252b5132 RH |
214 | |
215 | bfd_set_error_program_name (program_name); | |
216 | ||
3b66a141 HPN |
217 | /* We want to notice and fail on those nasty BFD assertions which are |
218 | likely to signal incorrect output being generated but otherwise may | |
219 | leave no trace. */ | |
220 | default_bfd_assert_handler = bfd_set_assert_handler (ld_bfd_assert_handler); | |
221 | ||
4519d071 AM |
222 | /* Also hook the bfd error/warning handler for --fatal-warnings. */ |
223 | default_bfd_error_handler = bfd_set_error_handler (ld_bfd_error_handler); | |
224 | ||
498cd2a0 | 225 | xatexit (ld_cleanup); |
252b5132 | 226 | |
e2243057 RS |
227 | /* Set up the sysroot directory. */ |
228 | ld_sysroot = get_sysroot (argc, argv); | |
229 | if (*ld_sysroot) | |
3074964f | 230 | ld_canon_sysroot = lrealpath (ld_sysroot); |
3fe38064 | 231 | if (ld_canon_sysroot) |
889be5db DR |
232 | { |
233 | ld_canon_sysroot_len = strlen (ld_canon_sysroot); | |
234 | ||
235 | /* is_sysrooted_pathname() relies on no trailing dirsep. */ | |
236 | if (ld_canon_sysroot_len > 0 | |
237 | && IS_DIR_SEPARATOR (ld_canon_sysroot [ld_canon_sysroot_len - 1])) | |
238 | ld_canon_sysroot [--ld_canon_sysroot_len] = '\0'; | |
239 | } | |
3fe38064 NC |
240 | else |
241 | ld_canon_sysroot_len = -1; | |
242 | ||
252b5132 RH |
243 | /* Set the default BFD target based on the configured target. Doing |
244 | this permits the linker to be configured for a particular target, | |
245 | and linked against a shared BFD library which was configured for | |
246 | a different target. The macro TARGET is defined by Makefile. */ | |
0aa7f586 | 247 | if (!bfd_set_default_target (TARGET)) |
252b5132 RH |
248 | { |
249 | einfo (_("%X%P: can't set BFD default target to `%s': %E\n"), TARGET); | |
250 | xexit (1); | |
251 | } | |
252 | ||
b47c4208 AM |
253 | #if YYDEBUG |
254 | { | |
255 | extern int yydebug; | |
256 | yydebug = 1; | |
257 | } | |
258 | #endif | |
259 | ||
b34976b6 | 260 | config.build_constructors = TRUE; |
c76308d2 | 261 | config.rpath_separator = ':'; |
a854a4a7 AM |
262 | config.split_by_reloc = (unsigned) -1; |
263 | config.split_by_file = (bfd_size_type) -1; | |
3b95049e AM |
264 | config.make_executable = TRUE; |
265 | config.magic_demand_paged = TRUE; | |
266 | config.text_read_only = TRUE; | |
035801ce | 267 | config.print_map_discarded = TRUE; |
4f9d22a0 | 268 | link_info.disable_target_specific_optimizations = -1; |
3b95049e | 269 | |
b34976b6 | 270 | command_line.warn_mismatch = TRUE; |
fe7929ce | 271 | command_line.warn_search_mismatch = TRUE; |
02b0b1aa | 272 | command_line.check_section_addresses = -1; |
bcaa7b3e | 273 | |
252b5132 RH |
274 | /* We initialize DEMANGLING based on the environment variable |
275 | COLLECT_NO_DEMANGLE. The gcc collect2 program will demangle the | |
276 | output of the linker, unless COLLECT_NO_DEMANGLE is set in the | |
277 | environment. Acting the same way here lets us provide the same | |
278 | interface by default. */ | |
279 | demangling = getenv ("COLLECT_NO_DEMANGLE") == NULL; | |
280 | ||
b34976b6 | 281 | link_info.allow_undefined_version = TRUE; |
b5067602 | 282 | link_info.keep_memory = TRUE; |
b5067602 | 283 | link_info.combreloc = TRUE; |
d5cd3933 | 284 | link_info.strip_discarded = TRUE; |
3f0a5f17 | 285 | link_info.prohibit_multiple_definition_absolute = FALSE; |
2760f24c RG |
286 | link_info.emit_hash = DEFAULT_EMIT_SYSV_HASH; |
287 | link_info.emit_gnu_hash = DEFAULT_EMIT_GNU_HASH; | |
a9a4c53e AM |
288 | link_info.callbacks = &link_callbacks; |
289 | link_info.input_bfds_tail = &link_info.input_bfds; | |
3dbf70a2 MM |
290 | /* SVR4 linkers seem to set DT_INIT and DT_FINI based on magic _init |
291 | and _fini symbols. We are compatible. */ | |
292 | link_info.init_function = "_init"; | |
293 | link_info.fini_function = "_fini"; | |
a9a4c53e | 294 | link_info.relax_pass = 1; |
889c2a67 | 295 | link_info.extern_protected_data = -1; |
aec6b87e | 296 | link_info.dynamic_undefined_weak = -1; |
e0076ab3 | 297 | link_info.pei386_auto_import = -1; |
db6751f2 | 298 | link_info.spare_dynamic_tags = 5; |
967928e9 | 299 | link_info.path_separator = ':'; |
6c3bc0f8 NC |
300 | #ifdef DEFAULT_FLAG_COMPRESS_DEBUG |
301 | link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB; | |
302 | #endif | |
6734f10a | 303 | #ifdef DEFAULT_NEW_DTAGS |
91001320 | 304 | link_info.new_dtags = DEFAULT_NEW_DTAGS; |
6734f10a | 305 | #endif |
24718e3b | 306 | |
252b5132 | 307 | ldfile_add_arch (""); |
252b5132 RH |
308 | emulation = get_emulation (argc, argv); |
309 | ldemul_choose_mode (emulation); | |
742aeb63 | 310 | default_target = ldemul_choose_target (argc, argv); |
252b5132 | 311 | lang_init (); |
18d6a79d | 312 | ldexp_init (); |
252b5132 | 313 | ldemul_before_parse (); |
b34976b6 | 314 | lang_has_input_file = FALSE; |
252b5132 RH |
315 | parse_args (argc, argv); |
316 | ||
2d643429 NC |
317 | if (config.hash_table_size != 0) |
318 | bfd_hash_set_default_size (config.hash_table_size); | |
319 | ||
9bbc1a67 AM |
320 | #ifdef ENABLE_PLUGINS |
321 | /* Now all the plugin arguments have been gathered, we can load them. */ | |
d82184d7 | 322 | plugin_load_plugins (); |
9bbc1a67 | 323 | #endif /* ENABLE_PLUGINS */ |
36af4a4e | 324 | |
9bbc1a67 | 325 | ldemul_set_symbols (); |
252b5132 | 326 | |
14be8564 L |
327 | /* If we have not already opened and parsed a linker script, |
328 | try the default script from command line first. */ | |
329 | if (saved_script_handle == NULL | |
330 | && command_line.default_script != NULL) | |
331 | { | |
6ec6968b | 332 | ldfile_open_script_file (command_line.default_script); |
14be8564 L |
333 | parser_input = input_script; |
334 | yyparse (); | |
335 | } | |
336 | ||
b9a8de1e NC |
337 | /* If we have not already opened and parsed a linker script |
338 | read the emulation's appropriate default script. */ | |
b90e1c6f | 339 | if (saved_script_handle == NULL) |
252b5132 | 340 | { |
252b5132 | 341 | int isfile; |
b7a26f91 | 342 | char *s = ldemul_get_script (&isfile); |
252b5132 RH |
343 | |
344 | if (isfile) | |
7d24f02c | 345 | ldfile_open_default_command_file (s); |
252b5132 | 346 | else |
b7a26f91 | 347 | { |
252b5132 | 348 | lex_string = s; |
dab69f68 | 349 | lex_redirect (s, _("built in linker script"), 1); |
252b5132 RH |
350 | } |
351 | parser_input = input_script; | |
352 | yyparse (); | |
353 | lex_string = NULL; | |
354 | } | |
355 | ||
cd6f1cf3 | 356 | if (verbose) |
b9a8de1e | 357 | { |
9cb61eab AM |
358 | if (saved_script_handle) |
359 | info_msg (_("using external linker script:")); | |
360 | else | |
361 | info_msg (_("using internal linker script:")); | |
362 | info_msg ("\n==================================================\n"); | |
b9a8de1e NC |
363 | |
364 | if (saved_script_handle) | |
365 | { | |
74699268 | 366 | static const int ld_bufsz = 8193; |
b9a8de1e | 367 | size_t n; |
1e9cc1c2 | 368 | char *buf = (char *) xmalloc (ld_bufsz); |
b9a8de1e NC |
369 | |
370 | rewind (saved_script_handle); | |
74699268 | 371 | while ((n = fread (buf, 1, ld_bufsz - 1, saved_script_handle)) > 0) |
b9a8de1e | 372 | { |
b7a26f91 | 373 | buf[n] = 0; |
f5ac6ab3 | 374 | info_msg ("%s", buf); |
b9a8de1e NC |
375 | } |
376 | rewind (saved_script_handle); | |
377 | free (buf); | |
378 | } | |
379 | else | |
380 | { | |
381 | int isfile; | |
382 | ||
b7a26f91 | 383 | info_msg (ldemul_get_script (&isfile)); |
b9a8de1e | 384 | } |
b7a26f91 | 385 | |
b9a8de1e NC |
386 | info_msg ("\n==================================================\n"); |
387 | } | |
388 | ||
7bdf4127 AB |
389 | if (command_line.force_group_allocation |
390 | || !bfd_link_relocatable (&link_info)) | |
391 | link_info.resolve_section_groups = TRUE; | |
392 | else | |
393 | link_info.resolve_section_groups = FALSE; | |
394 | ||
30824704 RM |
395 | if (command_line.print_output_format) |
396 | info_msg ("%s\n", lang_get_output_target ()); | |
397 | ||
252b5132 RH |
398 | lang_final (); |
399 | ||
61e2488c JT |
400 | /* If the only command line argument has been -v or --version or --verbose |
401 | then ignore any input files provided by linker scripts and exit now. | |
402 | We do not want to create an output file when the linker is just invoked | |
403 | to provide version information. */ | |
404 | if (argc == 2 && version_printed) | |
405 | xexit (0); | |
406 | ||
a4819f54 | 407 | if (link_info.inhibit_common_definition && !bfd_link_dll (&link_info)) |
df5f2391 | 408 | einfo (_("%F%P: --no-define-common may not be used without -shared\n")); |
a4819f54 | 409 | |
b34976b6 | 410 | if (!lang_has_input_file) |
252b5132 | 411 | { |
30824704 | 412 | if (version_printed || command_line.print_output_format) |
252b5132 | 413 | xexit (0); |
df5f2391 | 414 | einfo (_("%F%P: no input files\n")); |
252b5132 RH |
415 | } |
416 | ||
5c87f94b | 417 | if (verbose) |
0125cdf2 | 418 | info_msg (_("%P: mode %s\n"), emulation); |
252b5132 RH |
419 | |
420 | ldemul_after_parse (); | |
421 | ||
252b5132 RH |
422 | if (config.map_filename) |
423 | { | |
424 | if (strcmp (config.map_filename, "-") == 0) | |
425 | { | |
426 | config.map_file = stdout; | |
427 | } | |
428 | else | |
429 | { | |
430 | config.map_file = fopen (config.map_filename, FOPEN_WT); | |
431 | if (config.map_file == (FILE *) NULL) | |
432 | { | |
433 | bfd_set_error (bfd_error_system_call); | |
df5f2391 | 434 | einfo (_("%F%P: cannot open map file %s: %E\n"), |
252b5132 RH |
435 | config.map_filename); |
436 | } | |
437 | } | |
d2ef37eb | 438 | link_info.has_map_file = TRUE; |
252b5132 RH |
439 | } |
440 | ||
252b5132 RH |
441 | lang_process (); |
442 | ||
443 | /* Print error messages for any missing symbols, for any warning | |
6d5e62f8 | 444 | symbols, and possibly multiple definitions. */ |
0e1862bb | 445 | if (bfd_link_relocatable (&link_info)) |
f13a99db | 446 | link_info.output_bfd->flags &= ~EXEC_P; |
252b5132 | 447 | else |
f13a99db | 448 | link_info.output_bfd->flags |= EXEC_P; |
252b5132 | 449 | |
0ce398f1 L |
450 | if ((link_info.compress_debug & COMPRESS_DEBUG)) |
451 | { | |
452 | link_info.output_bfd->flags |= BFD_COMPRESS; | |
453 | if (link_info.compress_debug == COMPRESS_DEBUG_GABI_ZLIB) | |
454 | link_info.output_bfd->flags |= BFD_COMPRESS_GABI; | |
455 | } | |
456 | ||
252b5132 RH |
457 | ldwrite (); |
458 | ||
459 | if (config.map_file != NULL) | |
460 | lang_map (); | |
461 | if (command_line.cref) | |
462 | output_cref (config.map_file != NULL ? config.map_file : stdout); | |
463 | if (nocrossref_list != NULL) | |
464 | check_nocrossrefs (); | |
3604cb1f TG |
465 | if (command_line.print_memory_usage) |
466 | lang_print_memory_usage (); | |
edf84efc NC |
467 | #if 0 |
468 | { | |
0aa7f586 | 469 | struct bfd_link_hash_entry *h; |
252b5132 | 470 | |
edf84efc NC |
471 | h = bfd_link_hash_lookup (link_info.hash, "__image_base__", 0,0,1); |
472 | fprintf (stderr, "lookup = %p val %lx\n", h, h ? h->u.def.value : 1); | |
473 | } | |
474 | #endif | |
18d6a79d | 475 | ldexp_finish (); |
750877ba L |
476 | lang_finish (); |
477 | ||
1049f94e | 478 | /* Even if we're producing relocatable output, some non-fatal errors should |
252b5132 | 479 | be reported in the exit status. (What non-fatal errors, if any, do we |
1049f94e | 480 | want to ignore for relocatable output?) */ |
b34976b6 | 481 | if (!config.make_executable && !force_make_executable) |
252b5132 | 482 | { |
5c87f94b | 483 | if (verbose) |
0125cdf2 NC |
484 | einfo (_("%P: link errors found, deleting executable `%s'\n"), |
485 | output_filename); | |
252b5132 | 486 | |
4309cbf2 | 487 | /* The file will be removed by ld_cleanup. */ |
252b5132 RH |
488 | xexit (1); |
489 | } | |
490 | else | |
491 | { | |
0aa7f586 | 492 | if (!bfd_close (link_info.output_bfd)) |
df5f2391 | 493 | einfo (_("%F%P: %pB: final close failed: %E\n"), link_info.output_bfd); |
252b5132 RH |
494 | |
495 | /* If the --force-exe-suffix is enabled, and we're making an | |
6d5e62f8 KH |
496 | executable file and it doesn't end in .exe, copy it to one |
497 | which does. */ | |
0e1862bb L |
498 | if (!bfd_link_relocatable (&link_info) |
499 | && command_line.force_exe_suffix) | |
252b5132 RH |
500 | { |
501 | int len = strlen (output_filename); | |
0125cdf2 | 502 | |
6d5e62f8 | 503 | if (len < 4 |
252b5132 RH |
504 | || (strcasecmp (output_filename + len - 4, ".exe") != 0 |
505 | && strcasecmp (output_filename + len - 4, ".dll") != 0)) | |
506 | { | |
507 | FILE *src; | |
508 | FILE *dst; | |
509 | const int bsize = 4096; | |
1e9cc1c2 | 510 | char *buf = (char *) xmalloc (bsize); |
252b5132 | 511 | int l; |
1e9cc1c2 | 512 | char *dst_name = (char *) xmalloc (len + 5); |
0125cdf2 | 513 | |
252b5132 RH |
514 | strcpy (dst_name, output_filename); |
515 | strcat (dst_name, ".exe"); | |
516 | src = fopen (output_filename, FOPEN_RB); | |
517 | dst = fopen (dst_name, FOPEN_WB); | |
518 | ||
519 | if (!src) | |
df5f2391 | 520 | einfo (_("%F%P: unable to open for source of copy `%s'\n"), |
1579bae1 | 521 | output_filename); |
252b5132 | 522 | if (!dst) |
df5f2391 | 523 | einfo (_("%F%P: unable to open for destination of copy `%s'\n"), |
1579bae1 | 524 | dst_name); |
252b5132 RH |
525 | while ((l = fread (buf, 1, bsize, src)) > 0) |
526 | { | |
527 | int done = fwrite (buf, 1, l, dst); | |
0125cdf2 | 528 | |
252b5132 | 529 | if (done != l) |
df5f2391 | 530 | einfo (_("%P: error writing file `%s'\n"), dst_name); |
252b5132 | 531 | } |
0125cdf2 | 532 | |
252b5132 RH |
533 | fclose (src); |
534 | if (fclose (dst) == EOF) | |
df5f2391 | 535 | einfo (_("%P: error closing file `%s'\n"), dst_name); |
252b5132 RH |
536 | free (dst_name); |
537 | free (buf); | |
538 | } | |
539 | } | |
540 | } | |
541 | ||
542 | END_PROGRESS (program_name); | |
543 | ||
544 | if (config.stats) | |
545 | { | |
252b5132 RH |
546 | long run_time = get_run_time () - start_time; |
547 | ||
e922bcab | 548 | fflush (stdout); |
252b5132 RH |
549 | fprintf (stderr, _("%s: total time in link: %ld.%06ld\n"), |
550 | program_name, run_time / 1000000, run_time % 1000000); | |
e922bcab | 551 | fflush (stderr); |
252b5132 RH |
552 | } |
553 | ||
4309cbf2 | 554 | /* Prevent ld_cleanup from doing anything, after a successful link. */ |
252b5132 RH |
555 | output_filename = NULL; |
556 | ||
557 | xexit (0); | |
558 | return 0; | |
559 | } | |
560 | ||
e2243057 RS |
561 | /* If the configured sysroot is relocatable, try relocating it based on |
562 | default prefix FROM. Return the relocated directory if it exists, | |
563 | otherwise return null. */ | |
564 | ||
565 | static char * | |
566 | get_relative_sysroot (const char *from ATTRIBUTE_UNUSED) | |
567 | { | |
568 | #ifdef TARGET_SYSTEM_ROOT_RELOCATABLE | |
569 | char *path; | |
570 | struct stat s; | |
571 | ||
572 | path = make_relative_prefix (program_name, from, TARGET_SYSTEM_ROOT); | |
573 | if (path) | |
574 | { | |
575 | if (stat (path, &s) == 0 && S_ISDIR (s.st_mode)) | |
576 | return path; | |
577 | free (path); | |
578 | } | |
579 | #endif | |
580 | return 0; | |
581 | } | |
582 | ||
583 | /* Return the sysroot directory. Return "" if no sysroot is being used. */ | |
584 | ||
585 | static const char * | |
586 | get_sysroot (int argc, char **argv) | |
587 | { | |
588 | int i; | |
55d5520a | 589 | const char *path = NULL; |
e2243057 RS |
590 | |
591 | for (i = 1; i < argc; i++) | |
0112cd26 | 592 | if (CONST_STRNEQ (argv[i], "--sysroot=")) |
55d5520a | 593 | path = argv[i] + strlen ("--sysroot="); |
e2243057 | 594 | |
55d5520a AM |
595 | if (!path) |
596 | path = get_relative_sysroot (BINDIR); | |
e2243057 | 597 | |
55d5520a AM |
598 | if (!path) |
599 | path = get_relative_sysroot (TOOLBINDIR); | |
600 | ||
601 | if (!path) | |
602 | path = TARGET_SYSTEM_ROOT; | |
603 | ||
604 | if (IS_DIR_SEPARATOR (*path) && path[1] == 0) | |
605 | path = ""; | |
e2243057 | 606 | |
55d5520a | 607 | return path; |
e2243057 RS |
608 | } |
609 | ||
252b5132 RH |
610 | /* We need to find any explicitly given emulation in order to initialize the |
611 | state that's needed by the lex&yacc argument parser (parse_args). */ | |
612 | ||
613 | static char * | |
1579bae1 | 614 | get_emulation (int argc, char **argv) |
252b5132 RH |
615 | { |
616 | char *emulation; | |
617 | int i; | |
618 | ||
619 | emulation = getenv (EMULATION_ENVIRON); | |
620 | if (emulation == NULL) | |
621 | emulation = DEFAULT_EMULATION; | |
622 | ||
623 | for (i = 1; i < argc; i++) | |
624 | { | |
0112cd26 | 625 | if (CONST_STRNEQ (argv[i], "-m")) |
252b5132 RH |
626 | { |
627 | if (argv[i][2] == '\0') | |
628 | { | |
629 | /* -m EMUL */ | |
630 | if (i < argc - 1) | |
631 | { | |
632 | emulation = argv[i + 1]; | |
633 | i++; | |
634 | } | |
635 | else | |
df5f2391 | 636 | einfo (_("%F%P: missing argument to -m\n")); |
252b5132 RH |
637 | } |
638 | else if (strcmp (argv[i], "-mips1") == 0 | |
639 | || strcmp (argv[i], "-mips2") == 0 | |
640 | || strcmp (argv[i], "-mips3") == 0 | |
d1cf510e | 641 | || strcmp (argv[i], "-mips4") == 0 |
6f33421c CD |
642 | || strcmp (argv[i], "-mips5") == 0 |
643 | || strcmp (argv[i], "-mips32") == 0 | |
644 | || strcmp (argv[i], "-mips32r2") == 0 | |
7361da2c | 645 | || strcmp (argv[i], "-mips32r6") == 0 |
5f74bc13 | 646 | || strcmp (argv[i], "-mips64") == 0 |
7361da2c AB |
647 | || strcmp (argv[i], "-mips64r2") == 0 |
648 | || strcmp (argv[i], "-mips64r6") == 0) | |
252b5132 | 649 | { |
31d677f9 | 650 | /* FIXME: The arguments -mips1, -mips2, -mips3, etc. are |
252b5132 RH |
651 | passed to the linker by some MIPS compilers. They |
652 | generally tell the linker to use a slightly different | |
653 | library path. Perhaps someday these should be | |
654 | implemented as emulations; until then, we just ignore | |
655 | the arguments and hope that nobody ever creates | |
656 | emulations named ips1, ips2 or ips3. */ | |
657 | } | |
658 | else if (strcmp (argv[i], "-m486") == 0) | |
659 | { | |
660 | /* FIXME: The argument -m486 is passed to the linker on | |
661 | some Linux systems. Hope that nobody creates an | |
662 | emulation named 486. */ | |
663 | } | |
664 | else | |
665 | { | |
666 | /* -mEMUL */ | |
667 | emulation = &argv[i][2]; | |
668 | } | |
669 | } | |
670 | } | |
671 | ||
672 | return emulation; | |
673 | } | |
674 | ||
252b5132 | 675 | void |
1579bae1 | 676 | add_ysym (const char *name) |
252b5132 | 677 | { |
1579bae1 | 678 | if (link_info.notice_hash == NULL) |
252b5132 | 679 | { |
0aa7f586 AM |
680 | link_info.notice_hash |
681 | = (struct bfd_hash_table *) xmalloc (sizeof (struct bfd_hash_table)); | |
66eb6687 AM |
682 | if (!bfd_hash_table_init_n (link_info.notice_hash, |
683 | bfd_hash_newfunc, | |
684 | sizeof (struct bfd_hash_entry), | |
685 | 61)) | |
df5f2391 | 686 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
6d5e62f8 | 687 | } |
252b5132 | 688 | |
1579bae1 | 689 | if (bfd_hash_lookup (link_info.notice_hash, name, TRUE, TRUE) == NULL) |
df5f2391 | 690 | einfo (_("%F%P: bfd_hash_lookup failed: %E\n")); |
252b5132 RH |
691 | } |
692 | ||
0e86e20e AM |
693 | void |
694 | add_ignoresym (struct bfd_link_info *info, const char *name) | |
695 | { | |
696 | if (info->ignore_hash == NULL) | |
697 | { | |
698 | info->ignore_hash = xmalloc (sizeof (struct bfd_hash_table)); | |
0aa7f586 AM |
699 | if (!bfd_hash_table_init_n (info->ignore_hash, |
700 | bfd_hash_newfunc, | |
701 | sizeof (struct bfd_hash_entry), | |
702 | 61)) | |
df5f2391 | 703 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
0e86e20e AM |
704 | } |
705 | ||
706 | if (bfd_hash_lookup (info->ignore_hash, name, TRUE, TRUE) == NULL) | |
df5f2391 | 707 | einfo (_("%F%P: bfd_hash_lookup failed: %E\n")); |
0e86e20e AM |
708 | } |
709 | ||
252b5132 RH |
710 | /* Record a symbol to be wrapped, from the --wrap option. */ |
711 | ||
712 | void | |
1579bae1 | 713 | add_wrap (const char *name) |
252b5132 RH |
714 | { |
715 | if (link_info.wrap_hash == NULL) | |
716 | { | |
0aa7f586 AM |
717 | link_info.wrap_hash |
718 | = (struct bfd_hash_table *) xmalloc (sizeof (struct bfd_hash_table)); | |
66eb6687 AM |
719 | if (!bfd_hash_table_init_n (link_info.wrap_hash, |
720 | bfd_hash_newfunc, | |
721 | sizeof (struct bfd_hash_entry), | |
722 | 61)) | |
df5f2391 | 723 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
252b5132 | 724 | } |
0125cdf2 | 725 | |
b34976b6 | 726 | if (bfd_hash_lookup (link_info.wrap_hash, name, TRUE, TRUE) == NULL) |
df5f2391 | 727 | einfo (_("%F%P: bfd_hash_lookup failed: %E\n")); |
252b5132 RH |
728 | } |
729 | ||
730 | /* Handle the -retain-symbols-file option. */ | |
731 | ||
732 | void | |
1579bae1 | 733 | add_keepsyms_file (const char *filename) |
252b5132 RH |
734 | { |
735 | FILE *file; | |
736 | char *buf; | |
737 | size_t bufsize; | |
738 | int c; | |
739 | ||
740 | if (link_info.strip == strip_some) | |
741 | einfo (_("%X%P: error: duplicate retain-symbols-file\n")); | |
742 | ||
743 | file = fopen (filename, "r"); | |
1579bae1 | 744 | if (file == NULL) |
252b5132 RH |
745 | { |
746 | bfd_set_error (bfd_error_system_call); | |
747 | einfo ("%X%P: %s: %E\n", filename); | |
748 | return; | |
749 | } | |
750 | ||
1e9cc1c2 NC |
751 | link_info.keep_hash = (struct bfd_hash_table *) |
752 | xmalloc (sizeof (struct bfd_hash_table)); | |
66eb6687 AM |
753 | if (!bfd_hash_table_init (link_info.keep_hash, bfd_hash_newfunc, |
754 | sizeof (struct bfd_hash_entry))) | |
df5f2391 | 755 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
252b5132 RH |
756 | |
757 | bufsize = 100; | |
1e9cc1c2 | 758 | buf = (char *) xmalloc (bufsize); |
252b5132 RH |
759 | |
760 | c = getc (file); | |
761 | while (c != EOF) | |
762 | { | |
3882b010 | 763 | while (ISSPACE (c)) |
252b5132 RH |
764 | c = getc (file); |
765 | ||
766 | if (c != EOF) | |
767 | { | |
768 | size_t len = 0; | |
769 | ||
0aa7f586 | 770 | while (!ISSPACE (c) && c != EOF) |
252b5132 RH |
771 | { |
772 | buf[len] = c; | |
773 | ++len; | |
774 | if (len >= bufsize) | |
775 | { | |
776 | bufsize *= 2; | |
1e9cc1c2 | 777 | buf = (char *) xrealloc (buf, bufsize); |
252b5132 RH |
778 | } |
779 | c = getc (file); | |
780 | } | |
781 | ||
782 | buf[len] = '\0'; | |
783 | ||
1579bae1 | 784 | if (bfd_hash_lookup (link_info.keep_hash, buf, TRUE, TRUE) == NULL) |
df5f2391 | 785 | einfo (_("%F%P: bfd_hash_lookup for insertion failed: %E\n")); |
252b5132 RH |
786 | } |
787 | } | |
788 | ||
789 | if (link_info.strip != strip_none) | |
790 | einfo (_("%P: `-retain-symbols-file' overrides `-s' and `-S'\n")); | |
791 | ||
5ed6aba4 | 792 | free (buf); |
252b5132 | 793 | link_info.strip = strip_some; |
d9313f4f | 794 | fclose (file); |
252b5132 RH |
795 | } |
796 | \f | |
797 | /* Callbacks from the BFD linker routines. */ | |
798 | ||
799 | /* This is called when BFD has decided to include an archive member in | |
800 | a link. */ | |
801 | ||
b34976b6 | 802 | static bfd_boolean |
e1fffbe6 | 803 | add_archive_element (struct bfd_link_info *info, |
1579bae1 | 804 | bfd *abfd, |
5d3236ee DK |
805 | const char *name, |
806 | bfd **subsbfd ATTRIBUTE_UNUSED) | |
252b5132 RH |
807 | { |
808 | lang_input_statement_type *input; | |
1fa4ec6a | 809 | lang_input_statement_type *parent; |
5d3236ee | 810 | lang_input_statement_type orig_input; |
252b5132 | 811 | |
1e9cc1c2 NC |
812 | input = (lang_input_statement_type *) |
813 | xcalloc (1, sizeof (lang_input_statement_type)); | |
fb47deda | 814 | input->header.type = lang_input_statement_enum; |
252b5132 RH |
815 | input->filename = abfd->filename; |
816 | input->local_sym_name = abfd->filename; | |
817 | input->the_bfd = abfd; | |
252b5132 | 818 | |
00f93c44 | 819 | parent = bfd_usrdata (abfd->my_archive); |
1fa4ec6a | 820 | if (parent != NULL && !parent->flags.reload) |
36983a93 | 821 | parent->next = input; |
1fa4ec6a | 822 | |
5d3236ee DK |
823 | /* Save the original data for trace files/tries below, as plugins |
824 | (if enabled) may possibly alter it to point to a replacement | |
825 | BFD, but we still want to output the original BFD filename. */ | |
826 | orig_input = *input; | |
827 | #ifdef ENABLE_PLUGINS | |
b95a0a31 | 828 | if (link_info.lto_plugin_active) |
5d3236ee DK |
829 | { |
830 | /* We must offer this archive member to the plugins to claim. */ | |
35a1e5f3 L |
831 | plugin_maybe_claim (input); |
832 | if (input->flags.claimed) | |
5d3236ee | 833 | { |
b95a0a31 L |
834 | if (no_more_claiming) |
835 | { | |
836 | /* Don't claim new IR symbols after all IR symbols have | |
837 | been claimed. */ | |
5c87f94b | 838 | if (verbose) |
c1c8c1ef | 839 | info_msg ("%pI: no new IR symbols to claimi\n", |
b95a0a31 L |
840 | &orig_input); |
841 | input->flags.claimed = 0; | |
842 | return FALSE; | |
843 | } | |
35a1e5f3 L |
844 | input->flags.claim_archive = TRUE; |
845 | *subsbfd = input->the_bfd; | |
5d3236ee DK |
846 | } |
847 | } | |
848 | #endif /* ENABLE_PLUGINS */ | |
849 | ||
252b5132 RH |
850 | ldlang_add_file (input); |
851 | ||
1579bae1 | 852 | if (config.map_file != NULL) |
252b5132 | 853 | { |
b34976b6 | 854 | static bfd_boolean header_printed; |
252b5132 RH |
855 | struct bfd_link_hash_entry *h; |
856 | bfd *from; | |
857 | int len; | |
858 | ||
e1fffbe6 | 859 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); |
aa654ee8 AM |
860 | if (h == NULL |
861 | && info->pei386_auto_import | |
862 | && CONST_STRNEQ (name, "__imp_")) | |
863 | h = bfd_link_hash_lookup (info->hash, name + 6, FALSE, FALSE, TRUE); | |
252b5132 RH |
864 | |
865 | if (h == NULL) | |
866 | from = NULL; | |
867 | else | |
868 | { | |
869 | switch (h->type) | |
870 | { | |
871 | default: | |
872 | from = NULL; | |
873 | break; | |
874 | ||
875 | case bfd_link_hash_defined: | |
876 | case bfd_link_hash_defweak: | |
877 | from = h->u.def.section->owner; | |
878 | break; | |
879 | ||
880 | case bfd_link_hash_undefined: | |
881 | case bfd_link_hash_undefweak: | |
882 | from = h->u.undef.abfd; | |
883 | break; | |
884 | ||
885 | case bfd_link_hash_common: | |
886 | from = h->u.c.p->section->owner; | |
887 | break; | |
888 | } | |
889 | } | |
890 | ||
0aa7f586 | 891 | if (!header_printed) |
252b5132 | 892 | { |
1273da04 | 893 | minfo (_("Archive member included to satisfy reference by file (symbol)\n\n")); |
b34976b6 | 894 | header_printed = TRUE; |
252b5132 RH |
895 | } |
896 | ||
3860d2b4 AM |
897 | if (abfd->my_archive == NULL |
898 | || bfd_is_thin_archive (abfd->my_archive)) | |
252b5132 RH |
899 | { |
900 | minfo ("%s", bfd_get_filename (abfd)); | |
901 | len = strlen (bfd_get_filename (abfd)); | |
902 | } | |
903 | else | |
904 | { | |
3860d2b4 | 905 | minfo ("%s(%s)", bfd_get_filename (abfd->my_archive), |
252b5132 | 906 | bfd_get_filename (abfd)); |
3860d2b4 | 907 | len = (strlen (bfd_get_filename (abfd->my_archive)) |
252b5132 RH |
908 | + strlen (bfd_get_filename (abfd)) |
909 | + 2); | |
910 | } | |
911 | ||
912 | if (len >= 29) | |
913 | { | |
914 | print_nl (); | |
915 | len = 0; | |
916 | } | |
917 | while (len < 30) | |
918 | { | |
919 | print_space (); | |
920 | ++len; | |
921 | } | |
922 | ||
923 | if (from != NULL) | |
871b3ab2 | 924 | minfo ("%pB ", from); |
252b5132 | 925 | if (h != NULL) |
c1c8c1ef | 926 | minfo ("(%pT)\n", h->root.string); |
252b5132 RH |
927 | else |
928 | minfo ("(%s)\n", name); | |
929 | } | |
930 | ||
727a29ba AM |
931 | if (verbose |
932 | || trace_files > 1 | |
933 | || (trace_files && bfd_is_thin_archive (orig_input.the_bfd->my_archive))) | |
c1c8c1ef | 934 | info_msg ("%pI\n", &orig_input); |
b34976b6 | 935 | return TRUE; |
252b5132 RH |
936 | } |
937 | ||
938 | /* This is called when BFD has discovered a symbol which is defined | |
939 | multiple times. */ | |
940 | ||
1a72702b | 941 | static void |
24f58f47 AM |
942 | multiple_definition (struct bfd_link_info *info, |
943 | struct bfd_link_hash_entry *h, | |
1579bae1 AM |
944 | bfd *nbfd, |
945 | asection *nsec, | |
946 | bfd_vma nval) | |
252b5132 | 947 | { |
24f58f47 AM |
948 | const char *name; |
949 | bfd *obfd; | |
950 | asection *osec; | |
951 | bfd_vma oval; | |
952 | ||
953 | if (info->allow_multiple_definition) | |
1a72702b | 954 | return; |
24f58f47 AM |
955 | |
956 | switch (h->type) | |
957 | { | |
958 | case bfd_link_hash_defined: | |
959 | osec = h->u.def.section; | |
960 | oval = h->u.def.value; | |
961 | obfd = h->u.def.section->owner; | |
962 | break; | |
963 | case bfd_link_hash_indirect: | |
964 | osec = bfd_ind_section_ptr; | |
965 | oval = 0; | |
966 | obfd = NULL; | |
967 | break; | |
968 | default: | |
969 | abort (); | |
970 | } | |
971 | ||
972 | /* Ignore a redefinition of an absolute symbol to the | |
973 | same value; it's harmless. */ | |
974 | if (h->type == bfd_link_hash_defined | |
975 | && bfd_is_abs_section (osec) | |
976 | && bfd_is_abs_section (nsec) | |
977 | && nval == oval) | |
1a72702b | 978 | return; |
24f58f47 | 979 | |
252b5132 RH |
980 | /* If either section has the output_section field set to |
981 | bfd_abs_section_ptr, it means that the section is being | |
982 | discarded, and this is not really a multiple definition at all. | |
9e2278f5 AM |
983 | FIXME: It would be cleaner to somehow ignore symbols defined in |
984 | sections which are being discarded. */ | |
3f0a5f17 ME |
985 | if (!info->prohibit_multiple_definition_absolute |
986 | && ((osec->output_section != NULL | |
987 | && ! bfd_is_abs_section (osec) | |
988 | && bfd_is_abs_section (osec->output_section)) | |
989 | || (nsec->output_section != NULL | |
990 | && !bfd_is_abs_section (nsec) | |
991 | && bfd_is_abs_section (nsec->output_section)))) | |
1a72702b | 992 | return; |
252b5132 | 993 | |
24f58f47 AM |
994 | name = h->root.string; |
995 | if (nbfd == NULL) | |
996 | { | |
997 | nbfd = obfd; | |
998 | nsec = osec; | |
999 | nval = oval; | |
1000 | obfd = NULL; | |
1001 | } | |
df5f2391 | 1002 | einfo (_("%X%P: %C: multiple definition of `%pT'"), |
252b5132 | 1003 | nbfd, nsec, nval, name); |
1579bae1 | 1004 | if (obfd != NULL) |
df5f2391 AM |
1005 | einfo (_("; %D: first defined here"), obfd, osec, oval); |
1006 | einfo ("\n"); | |
9b14b192 | 1007 | |
13761a11 | 1008 | if (RELAXATION_ENABLED_BY_USER) |
9b14b192 | 1009 | { |
df5f2391 | 1010 | einfo (_("%P: disabling relaxation; it will not work with multiple definitions\n")); |
13761a11 | 1011 | DISABLE_RELAXATION; |
9b14b192 | 1012 | } |
252b5132 RH |
1013 | } |
1014 | ||
1015 | /* This is called when there is a definition of a common symbol, or | |
1016 | when a common symbol is found for a symbol that is already defined, | |
1017 | or when two common symbols are found. We only do something if | |
1018 | -warn-common was used. */ | |
1019 | ||
1a72702b | 1020 | static void |
1579bae1 | 1021 | multiple_common (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
24f58f47 | 1022 | struct bfd_link_hash_entry *h, |
1579bae1 AM |
1023 | bfd *nbfd, |
1024 | enum bfd_link_hash_type ntype, | |
1025 | bfd_vma nsize) | |
252b5132 | 1026 | { |
24f58f47 AM |
1027 | const char *name; |
1028 | bfd *obfd; | |
1029 | enum bfd_link_hash_type otype; | |
1030 | bfd_vma osize; | |
1031 | ||
1032 | if (!config.warn_common) | |
1a72702b | 1033 | return; |
252b5132 | 1034 | |
24f58f47 AM |
1035 | name = h->root.string; |
1036 | otype = h->type; | |
1037 | if (otype == bfd_link_hash_common) | |
1038 | { | |
1039 | obfd = h->u.c.p->section->owner; | |
1040 | osize = h->u.c.size; | |
1041 | } | |
1042 | else if (otype == bfd_link_hash_defined | |
1043 | || otype == bfd_link_hash_defweak) | |
1044 | { | |
1045 | obfd = h->u.def.section->owner; | |
1046 | osize = 0; | |
1047 | } | |
1048 | else | |
1049 | { | |
1050 | /* FIXME: It would nice if we could report the BFD which defined | |
1051 | an indirect symbol, but we don't have anywhere to store the | |
1052 | information. */ | |
1053 | obfd = NULL; | |
1054 | osize = 0; | |
1055 | } | |
1056 | ||
252b5132 RH |
1057 | if (ntype == bfd_link_hash_defined |
1058 | || ntype == bfd_link_hash_defweak | |
1059 | || ntype == bfd_link_hash_indirect) | |
1060 | { | |
1061 | ASSERT (otype == bfd_link_hash_common); | |
252b5132 | 1062 | if (obfd != NULL) |
df5f2391 AM |
1063 | einfo (_("%P: %pB: warning: definition of `%pT' overriding common" |
1064 | " from %pB\n"), | |
1065 | nbfd, name, obfd); | |
1066 | else | |
1067 | einfo (_("%P: %pB: warning: definition of `%pT' overriding common\n"), | |
1068 | nbfd, name); | |
252b5132 RH |
1069 | } |
1070 | else if (otype == bfd_link_hash_defined | |
1071 | || otype == bfd_link_hash_defweak | |
1072 | || otype == bfd_link_hash_indirect) | |
1073 | { | |
1074 | ASSERT (ntype == bfd_link_hash_common); | |
252b5132 | 1075 | if (obfd != NULL) |
df5f2391 AM |
1076 | einfo (_("%P: %pB: warning: common of `%pT' overridden by definition" |
1077 | " from %pB\n"), | |
1078 | nbfd, name, obfd); | |
1079 | else | |
1080 | einfo (_("%P: %pB: warning: common of `%pT' overridden by definition\n"), | |
1081 | nbfd, name); | |
252b5132 RH |
1082 | } |
1083 | else | |
1084 | { | |
1085 | ASSERT (otype == bfd_link_hash_common && ntype == bfd_link_hash_common); | |
1086 | if (osize > nsize) | |
1087 | { | |
252b5132 | 1088 | if (obfd != NULL) |
df5f2391 AM |
1089 | einfo (_("%P: %pB: warning: common of `%pT' overridden" |
1090 | " by larger common from %pB\n"), | |
1091 | nbfd, name, obfd); | |
1092 | else | |
1093 | einfo (_("%P: %pB: warning: common of `%pT' overridden" | |
1094 | " by larger common\n"), | |
1095 | nbfd, name); | |
252b5132 RH |
1096 | } |
1097 | else if (nsize > osize) | |
1098 | { | |
252b5132 | 1099 | if (obfd != NULL) |
df5f2391 AM |
1100 | einfo (_("%P: %pB: warning: common of `%pT' overriding" |
1101 | " smaller common from %pB\n"), | |
1102 | nbfd, name, obfd); | |
1103 | else | |
1104 | einfo (_("%P: %pB: warning: common of `%pT' overriding" | |
1105 | " smaller common\n"), | |
1106 | nbfd, name); | |
252b5132 RH |
1107 | } |
1108 | else | |
1109 | { | |
252b5132 | 1110 | if (obfd != NULL) |
df5f2391 AM |
1111 | einfo (_("%P: %pB and %pB: warning: multiple common of `%pT'\n"), |
1112 | nbfd, obfd, name); | |
1113 | else | |
1114 | einfo (_("%P: %pB: warning: multiple common of `%pT'\n"), | |
1115 | nbfd, name); | |
252b5132 RH |
1116 | } |
1117 | } | |
252b5132 RH |
1118 | } |
1119 | ||
1120 | /* This is called when BFD has discovered a set element. H is the | |
1121 | entry in the linker hash table for the set. SECTION and VALUE | |
1122 | represent a value which should be added to the set. */ | |
1123 | ||
1a72702b | 1124 | static void |
1579bae1 AM |
1125 | add_to_set (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1126 | struct bfd_link_hash_entry *h, | |
1127 | bfd_reloc_code_real_type reloc, | |
1128 | bfd *abfd, | |
1129 | asection *section, | |
1130 | bfd_vma value) | |
252b5132 RH |
1131 | { |
1132 | if (config.warn_constructors) | |
1133 | einfo (_("%P: warning: global constructor %s used\n"), | |
1134 | h->root.string); | |
1135 | ||
0aa7f586 | 1136 | if (!config.build_constructors) |
1a72702b | 1137 | return; |
252b5132 | 1138 | |
1579bae1 | 1139 | ldctor_add_set_entry (h, reloc, NULL, section, value); |
252b5132 RH |
1140 | |
1141 | if (h->type == bfd_link_hash_new) | |
1142 | { | |
1143 | h->type = bfd_link_hash_undefined; | |
1144 | h->u.undef.abfd = abfd; | |
1145 | /* We don't call bfd_link_add_undef to add this to the list of | |
1146 | undefined symbols because we are going to define it | |
1147 | ourselves. */ | |
1148 | } | |
252b5132 RH |
1149 | } |
1150 | ||
1151 | /* This is called when BFD has discovered a constructor. This is only | |
1152 | called for some object file formats--those which do not handle | |
1153 | constructors in some more clever fashion. This is similar to | |
1154 | adding an element to a set, but less general. */ | |
1155 | ||
1a72702b | 1156 | static void |
1579bae1 AM |
1157 | constructor_callback (struct bfd_link_info *info, |
1158 | bfd_boolean constructor, | |
1159 | const char *name, | |
1160 | bfd *abfd, | |
1161 | asection *section, | |
1162 | bfd_vma value) | |
252b5132 RH |
1163 | { |
1164 | char *s; | |
1165 | struct bfd_link_hash_entry *h; | |
1166 | char set_name[1 + sizeof "__CTOR_LIST__"]; | |
1167 | ||
1168 | if (config.warn_constructors) | |
1169 | einfo (_("%P: warning: global constructor %s used\n"), name); | |
1170 | ||
0aa7f586 | 1171 | if (!config.build_constructors) |
1a72702b | 1172 | return; |
252b5132 RH |
1173 | |
1174 | /* Ensure that BFD_RELOC_CTOR exists now, so that we can give a | |
1175 | useful error message. */ | |
0e86e20e | 1176 | if (bfd_reloc_type_lookup (info->output_bfd, BFD_RELOC_CTOR) == NULL |
0e1862bb | 1177 | && (bfd_link_relocatable (info) |
252b5132 | 1178 | || bfd_reloc_type_lookup (abfd, BFD_RELOC_CTOR) == NULL)) |
df5f2391 | 1179 | einfo (_("%F%P: BFD backend error: BFD_RELOC_CTOR unsupported\n")); |
252b5132 RH |
1180 | |
1181 | s = set_name; | |
1182 | if (bfd_get_symbol_leading_char (abfd) != '\0') | |
1183 | *s++ = bfd_get_symbol_leading_char (abfd); | |
1184 | if (constructor) | |
1185 | strcpy (s, "__CTOR_LIST__"); | |
1186 | else | |
1187 | strcpy (s, "__DTOR_LIST__"); | |
1188 | ||
b34976b6 | 1189 | h = bfd_link_hash_lookup (info->hash, set_name, TRUE, TRUE, TRUE); |
252b5132 | 1190 | if (h == (struct bfd_link_hash_entry *) NULL) |
df5f2391 | 1191 | einfo (_("%F%P: bfd_link_hash_lookup failed: %E\n")); |
252b5132 RH |
1192 | if (h->type == bfd_link_hash_new) |
1193 | { | |
1194 | h->type = bfd_link_hash_undefined; | |
1195 | h->u.undef.abfd = abfd; | |
1196 | /* We don't call bfd_link_add_undef to add this to the list of | |
1197 | undefined symbols because we are going to define it | |
1198 | ourselves. */ | |
1199 | } | |
1200 | ||
1201 | ldctor_add_set_entry (h, BFD_RELOC_CTOR, name, section, value); | |
252b5132 RH |
1202 | } |
1203 | ||
1204 | /* A structure used by warning_callback to pass information through | |
1205 | bfd_map_over_sections. */ | |
1206 | ||
0125cdf2 NC |
1207 | struct warning_callback_info |
1208 | { | |
b34976b6 | 1209 | bfd_boolean found; |
252b5132 RH |
1210 | const char *warning; |
1211 | const char *symbol; | |
1212 | asymbol **asymbols; | |
1213 | }; | |
1214 | ||
4c6d802e L |
1215 | /* Look through the relocs to see if we can find a plausible address |
1216 | for SYMBOL in ABFD. Return TRUE if found. Otherwise return FALSE. */ | |
1217 | ||
1218 | static bfd_boolean | |
1219 | symbol_warning (const char *warning, const char *symbol, bfd *abfd) | |
1220 | { | |
1221 | struct warning_callback_info cinfo; | |
1222 | ||
1223 | if (!bfd_generic_link_read_symbols (abfd)) | |
df5f2391 | 1224 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), abfd); |
4c6d802e L |
1225 | |
1226 | cinfo.found = FALSE; | |
1227 | cinfo.warning = warning; | |
1228 | cinfo.symbol = symbol; | |
1229 | cinfo.asymbols = bfd_get_outsymbols (abfd); | |
1230 | bfd_map_over_sections (abfd, warning_find_reloc, &cinfo); | |
1231 | return cinfo.found; | |
1232 | } | |
1233 | ||
252b5132 RH |
1234 | /* This is called when there is a reference to a warning symbol. */ |
1235 | ||
1a72702b | 1236 | static void |
1579bae1 AM |
1237 | warning_callback (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1238 | const char *warning, | |
1239 | const char *symbol, | |
1240 | bfd *abfd, | |
1241 | asection *section, | |
1242 | bfd_vma address) | |
252b5132 RH |
1243 | { |
1244 | /* This is a hack to support warn_multiple_gp. FIXME: This should | |
1245 | have a cleaner interface, but what? */ | |
0aa7f586 | 1246 | if (!config.warn_multiple_gp |
252b5132 | 1247 | && strcmp (warning, "using multiple gp values") == 0) |
1a72702b | 1248 | return; |
252b5132 RH |
1249 | |
1250 | if (section != NULL) | |
df5f2391 | 1251 | einfo ("%P: %C: %s%s\n", abfd, section, address, _("warning: "), warning); |
252b5132 | 1252 | else if (abfd == NULL) |
300475fe | 1253 | einfo ("%P: %s%s\n", _("warning: "), warning); |
252b5132 | 1254 | else if (symbol == NULL) |
df5f2391 | 1255 | einfo ("%P: %pB: %s%s\n", abfd, _("warning: "), warning); |
0aa7f586 | 1256 | else if (!symbol_warning (warning, symbol, abfd)) |
252b5132 | 1257 | { |
4c6d802e L |
1258 | bfd *b; |
1259 | /* Search all input files for a reference to SYMBOL. */ | |
c72f2fb2 | 1260 | for (b = info->input_bfds; b; b = b->link.next) |
4c6d802e | 1261 | if (b != abfd && symbol_warning (warning, symbol, b)) |
1a72702b | 1262 | return; |
df5f2391 | 1263 | einfo ("%P: %pB: %s%s\n", abfd, _("warning: "), warning); |
252b5132 | 1264 | } |
252b5132 RH |
1265 | } |
1266 | ||
1267 | /* This is called by warning_callback for each section. It checks the | |
1268 | relocs of the section to see if it can find a reference to the | |
1269 | symbol which triggered the warning. If it can, it uses the reloc | |
1270 | to give an error message with a file and line number. */ | |
1271 | ||
1272 | static void | |
1579bae1 | 1273 | warning_find_reloc (bfd *abfd, asection *sec, void *iarg) |
252b5132 | 1274 | { |
1e9cc1c2 | 1275 | struct warning_callback_info *info = (struct warning_callback_info *) iarg; |
252b5132 RH |
1276 | long relsize; |
1277 | arelent **relpp; | |
1278 | long relcount; | |
1279 | arelent **p, **pend; | |
1280 | ||
1281 | if (info->found) | |
1282 | return; | |
1283 | ||
1284 | relsize = bfd_get_reloc_upper_bound (abfd, sec); | |
1285 | if (relsize < 0) | |
df5f2391 | 1286 | einfo (_("%F%P: %pB: could not read relocs: %E\n"), abfd); |
252b5132 RH |
1287 | if (relsize == 0) |
1288 | return; | |
1289 | ||
1e9cc1c2 | 1290 | relpp = (arelent **) xmalloc (relsize); |
252b5132 RH |
1291 | relcount = bfd_canonicalize_reloc (abfd, sec, relpp, info->asymbols); |
1292 | if (relcount < 0) | |
df5f2391 | 1293 | einfo (_("%F%P: %pB: could not read relocs: %E\n"), abfd); |
252b5132 RH |
1294 | |
1295 | p = relpp; | |
1296 | pend = p + relcount; | |
1297 | for (; p < pend && *p != NULL; p++) | |
1298 | { | |
1299 | arelent *q = *p; | |
1300 | ||
1301 | if (q->sym_ptr_ptr != NULL | |
1302 | && *q->sym_ptr_ptr != NULL | |
1303 | && strcmp (bfd_asymbol_name (*q->sym_ptr_ptr), info->symbol) == 0) | |
1304 | { | |
1305 | /* We found a reloc for the symbol we are looking for. */ | |
df5f2391 | 1306 | einfo ("%P: %C: %s%s\n", abfd, sec, q->address, _("warning: "), |
300475fe | 1307 | info->warning); |
b34976b6 | 1308 | info->found = TRUE; |
252b5132 RH |
1309 | break; |
1310 | } | |
1311 | } | |
1312 | ||
1313 | free (relpp); | |
1314 | } | |
1315 | ||
1316 | /* This is called when an undefined symbol is found. */ | |
1317 | ||
1a72702b | 1318 | static void |
0e86e20e | 1319 | undefined_symbol (struct bfd_link_info *info, |
1579bae1 AM |
1320 | const char *name, |
1321 | bfd *abfd, | |
1322 | asection *section, | |
1323 | bfd_vma address, | |
0b28295d | 1324 | bfd_boolean error) |
252b5132 RH |
1325 | { |
1326 | static char *error_name; | |
1327 | static unsigned int error_count; | |
1328 | ||
1329 | #define MAX_ERRORS_IN_A_ROW 5 | |
1330 | ||
0e86e20e AM |
1331 | if (info->ignore_hash != NULL |
1332 | && bfd_hash_lookup (info->ignore_hash, name, FALSE, FALSE) != NULL) | |
1a72702b | 1333 | return; |
0e86e20e | 1334 | |
252b5132 RH |
1335 | if (config.warn_once) |
1336 | { | |
252b5132 | 1337 | /* Only warn once about a particular undefined symbol. */ |
0e86e20e | 1338 | add_ignoresym (info, name); |
252b5132 RH |
1339 | } |
1340 | ||
1341 | /* We never print more than a reasonable number of errors in a row | |
1342 | for a single symbol. */ | |
1579bae1 | 1343 | if (error_name != NULL |
252b5132 RH |
1344 | && strcmp (name, error_name) == 0) |
1345 | ++error_count; | |
1346 | else | |
1347 | { | |
1348 | error_count = 0; | |
1579bae1 | 1349 | if (error_name != NULL) |
252b5132 | 1350 | free (error_name); |
d1b2b2dc | 1351 | error_name = xstrdup (name); |
252b5132 RH |
1352 | } |
1353 | ||
1354 | if (section != NULL) | |
1355 | { | |
1356 | if (error_count < MAX_ERRORS_IN_A_ROW) | |
b6f29aaa | 1357 | { |
0b28295d | 1358 | if (error) |
df5f2391 | 1359 | einfo (_("%X%P: %C: undefined reference to `%pT'\n"), |
0b28295d ILT |
1360 | abfd, section, address, name); |
1361 | else | |
df5f2391 | 1362 | einfo (_("%P: %C: warning: undefined reference to `%pT'\n"), |
0b28295d | 1363 | abfd, section, address, name); |
b6f29aaa | 1364 | } |
252b5132 | 1365 | else if (error_count == MAX_ERRORS_IN_A_ROW) |
0b28295d ILT |
1366 | { |
1367 | if (error) | |
df5f2391 | 1368 | einfo (_("%X%P: %D: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1369 | abfd, section, address, name); |
1370 | else | |
df5f2391 | 1371 | einfo (_("%P: %D: warning: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1372 | abfd, section, address, name); |
1373 | } | |
1374 | else if (error) | |
1375 | einfo ("%X"); | |
252b5132 RH |
1376 | } |
1377 | else | |
1378 | { | |
1379 | if (error_count < MAX_ERRORS_IN_A_ROW) | |
b6f29aaa | 1380 | { |
0b28295d | 1381 | if (error) |
df5f2391 | 1382 | einfo (_("%X%P: %pB: undefined reference to `%pT'\n"), |
0b28295d ILT |
1383 | abfd, name); |
1384 | else | |
df5f2391 | 1385 | einfo (_("%P: %pB: warning: undefined reference to `%pT'\n"), |
0b28295d | 1386 | abfd, name); |
b6f29aaa | 1387 | } |
252b5132 | 1388 | else if (error_count == MAX_ERRORS_IN_A_ROW) |
0b28295d ILT |
1389 | { |
1390 | if (error) | |
df5f2391 | 1391 | einfo (_("%X%P: %pB: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1392 | abfd, name); |
1393 | else | |
df5f2391 | 1394 | einfo (_("%P: %pB: warning: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1395 | abfd, name); |
1396 | } | |
1397 | else if (error) | |
1398 | einfo ("%X"); | |
252b5132 | 1399 | } |
252b5132 RH |
1400 | } |
1401 | ||
8aae64e6 AO |
1402 | /* Counter to limit the number of relocation overflow error messages |
1403 | to print. Errors are printed as it is decremented. When it's | |
1404 | called and the counter is zero, a final message is printed | |
1405 | indicating more relocations were omitted. When it gets to -1, no | |
1406 | such errors are printed. If it's initially set to a value less | |
1407 | than -1, all such errors will be printed (--verbose does this). */ | |
1408 | ||
1409 | int overflow_cutoff_limit = 10; | |
1410 | ||
252b5132 RH |
1411 | /* This is called when a reloc overflows. */ |
1412 | ||
1a72702b | 1413 | static void |
0e86e20e | 1414 | reloc_overflow (struct bfd_link_info *info, |
dfeffb9f | 1415 | struct bfd_link_hash_entry *entry, |
1579bae1 AM |
1416 | const char *name, |
1417 | const char *reloc_name, | |
1418 | bfd_vma addend, | |
1419 | bfd *abfd, | |
1420 | asection *section, | |
1421 | bfd_vma address) | |
252b5132 | 1422 | { |
8aae64e6 | 1423 | if (overflow_cutoff_limit == -1) |
1a72702b | 1424 | return; |
8aae64e6 | 1425 | |
a5990ada | 1426 | einfo ("%X%H:", abfd, section, address); |
8aae64e6 AO |
1427 | |
1428 | if (overflow_cutoff_limit >= 0 | |
1429 | && overflow_cutoff_limit-- == 0) | |
1430 | { | |
1431 | einfo (_(" additional relocation overflows omitted from the output\n")); | |
1a72702b | 1432 | return; |
8aae64e6 AO |
1433 | } |
1434 | ||
dfeffb9f L |
1435 | if (entry) |
1436 | { | |
1437 | while (entry->type == bfd_link_hash_indirect | |
1438 | || entry->type == bfd_link_hash_warning) | |
1439 | entry = entry->u.i.link; | |
1440 | switch (entry->type) | |
1441 | { | |
1442 | case bfd_link_hash_undefined: | |
1443 | case bfd_link_hash_undefweak: | |
0aa7f586 | 1444 | einfo (_(" relocation truncated to fit: " |
c1c8c1ef | 1445 | "%s against undefined symbol `%pT'"), |
dfeffb9f L |
1446 | reloc_name, entry->root.string); |
1447 | break; | |
1448 | case bfd_link_hash_defined: | |
1449 | case bfd_link_hash_defweak: | |
0aa7f586 | 1450 | einfo (_(" relocation truncated to fit: " |
c1c8c1ef | 1451 | "%s against symbol `%pT' defined in %pA section in %pB"), |
dfeffb9f | 1452 | reloc_name, entry->root.string, |
a6e1b90f L |
1453 | entry->u.def.section, |
1454 | entry->u.def.section == bfd_abs_section_ptr | |
0e86e20e | 1455 | ? info->output_bfd : entry->u.def.section->owner); |
dfeffb9f L |
1456 | break; |
1457 | default: | |
1458 | abort (); | |
1459 | break; | |
1460 | } | |
1461 | } | |
1462 | else | |
c1c8c1ef | 1463 | einfo (_(" relocation truncated to fit: %s against `%pT'"), |
dfeffb9f | 1464 | reloc_name, name); |
252b5132 RH |
1465 | if (addend != 0) |
1466 | einfo ("+%v", addend); | |
1467 | einfo ("\n"); | |
252b5132 RH |
1468 | } |
1469 | ||
1470 | /* This is called when a dangerous relocation is made. */ | |
1471 | ||
1a72702b | 1472 | static void |
1579bae1 AM |
1473 | reloc_dangerous (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1474 | const char *message, | |
1475 | bfd *abfd, | |
1476 | asection *section, | |
1477 | bfd_vma address) | |
252b5132 | 1478 | { |
a5990ada | 1479 | einfo (_("%X%H: dangerous relocation: %s\n"), |
e1fffbe6 | 1480 | abfd, section, address, message); |
252b5132 RH |
1481 | } |
1482 | ||
1483 | /* This is called when a reloc is being generated attached to a symbol | |
1484 | that is not being output. */ | |
1485 | ||
1a72702b | 1486 | static void |
1579bae1 AM |
1487 | unattached_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1488 | const char *name, | |
1489 | bfd *abfd, | |
1490 | asection *section, | |
1491 | bfd_vma address) | |
252b5132 | 1492 | { |
a5990ada | 1493 | einfo (_("%X%H: reloc refers to symbol `%pT' which is not being output\n"), |
e1fffbe6 | 1494 | abfd, section, address, name); |
252b5132 RH |
1495 | } |
1496 | ||
1497 | /* This is called if link_info.notice_all is set, or when a symbol in | |
1498 | link_info.notice_hash is found. Symbols are put in notice_hash | |
5d3236ee DK |
1499 | using the -y option, while notice_all is set if the --cref option |
1500 | has been supplied, or if there are any NOCROSSREFS sections in the | |
1501 | linker script; and if plugins are active, since they need to monitor | |
1502 | all references from non-IR files. */ | |
252b5132 | 1503 | |
b34976b6 | 1504 | static bfd_boolean |
1579bae1 | 1505 | notice (struct bfd_link_info *info, |
35ed3f94 | 1506 | struct bfd_link_hash_entry *h, |
46135103 | 1507 | struct bfd_link_hash_entry *inh ATTRIBUTE_UNUSED, |
1579bae1 AM |
1508 | bfd *abfd, |
1509 | asection *section, | |
16d96b5b | 1510 | bfd_vma value, |
46135103 | 1511 | flagword flags ATTRIBUTE_UNUSED) |
252b5132 | 1512 | { |
35ed3f94 AM |
1513 | const char *name; |
1514 | ||
1515 | if (h == NULL) | |
5061a885 AM |
1516 | { |
1517 | if (command_line.cref || nocrossref_list != NULL) | |
1e9cc1c2 | 1518 | return handle_asneeded_cref (abfd, (enum notice_asneeded_action) value); |
5061a885 AM |
1519 | return TRUE; |
1520 | } | |
1521 | ||
35ed3f94 | 1522 | name = h->root.string; |
5d3236ee | 1523 | if (info->notice_hash != NULL |
9e2278f5 | 1524 | && bfd_hash_lookup (info->notice_hash, name, FALSE, FALSE) != NULL) |
252b5132 RH |
1525 | { |
1526 | if (bfd_is_und_section (section)) | |
df5f2391 | 1527 | einfo (_("%P: %pB: reference to %s\n"), abfd, name); |
252b5132 | 1528 | else |
df5f2391 | 1529 | einfo (_("%P: %pB: definition of %s\n"), abfd, name); |
252b5132 RH |
1530 | } |
1531 | ||
1532 | if (command_line.cref || nocrossref_list != NULL) | |
1533 | add_cref (name, abfd, section, value); | |
1534 | ||
b34976b6 | 1535 | return TRUE; |
252b5132 | 1536 | } |