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252b5132 | 1 | /* Main program of GNU linker. |
b3adc24a | 2 | Copyright (C) 1991-2020 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" | |
1ff6de03 | 28 | #include "ctf-api.h" |
5af11cab | 29 | #include "filenames.h" |
252b5132 RH |
30 | |
31 | #include "ld.h" | |
32 | #include "ldmain.h" | |
33 | #include "ldmisc.h" | |
34 | #include "ldwrite.h" | |
252b5132 RH |
35 | #include "ldexp.h" |
36 | #include "ldlang.h" | |
df2a7313 | 37 | #include <ldgram.h> |
252b5132 RH |
38 | #include "ldlex.h" |
39 | #include "ldfile.h" | |
b71e2778 | 40 | #include "ldemul.h" |
252b5132 | 41 | #include "ldctor.h" |
5d3236ee DK |
42 | #ifdef ENABLE_PLUGINS |
43 | #include "plugin.h" | |
44 | #include "plugin-api.h" | |
5d3236ee | 45 | #endif /* ENABLE_PLUGINS */ |
252b5132 | 46 | |
0125cdf2 | 47 | /* Somewhere above, sys/stat.h got included. */ |
252b5132 RH |
48 | #if !defined(S_ISDIR) && defined(S_IFDIR) |
49 | #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) | |
50 | #endif | |
51 | ||
52 | #include <string.h> | |
53 | ||
9c8ebd6a DJ |
54 | #ifndef TARGET_SYSTEM_ROOT |
55 | #define TARGET_SYSTEM_ROOT "" | |
56 | #endif | |
57 | ||
252b5132 RH |
58 | /* EXPORTS */ |
59 | ||
53d25da6 AM |
60 | FILE *saved_script_handle = NULL; |
61 | FILE *previous_script_handle = NULL; | |
62 | bfd_boolean force_make_executable = FALSE; | |
63 | ||
252b5132 RH |
64 | char *default_target; |
65 | const char *output_filename = "a.out"; | |
66 | ||
67 | /* Name this program was invoked by. */ | |
68 | char *program_name; | |
69 | ||
9c8ebd6a | 70 | /* The prefix for system library directories. */ |
e2243057 | 71 | const char *ld_sysroot; |
9c8ebd6a | 72 | |
3fe38064 | 73 | /* The canonical representation of ld_sysroot. */ |
0aa7f586 | 74 | char *ld_canon_sysroot; |
3fe38064 NC |
75 | int ld_canon_sysroot_len; |
76 | ||
e8044f35 | 77 | /* Set by -G argument, for targets like MIPS ELF. */ |
252b5132 RH |
78 | int g_switch_value = 8; |
79 | ||
80 | /* Nonzero means print names of input files as processed. */ | |
727a29ba | 81 | unsigned int trace_files; |
252b5132 | 82 | |
cd6f1cf3 NC |
83 | /* Nonzero means report actions taken by the linker, and describe the linker script in use. */ |
84 | bfd_boolean verbose; | |
252b5132 RH |
85 | |
86 | /* Nonzero means version number was printed, so exit successfully | |
87 | instead of complaining if no input files are given. */ | |
b34976b6 | 88 | bfd_boolean version_printed; |
252b5132 | 89 | |
b34976b6 AM |
90 | /* TRUE if we should demangle symbol names. */ |
91 | bfd_boolean demangling; | |
252b5132 RH |
92 | |
93 | args_type command_line; | |
94 | ||
95 | ld_config_type config; | |
96 | ||
bcaa7b3e L |
97 | sort_type sort_section; |
98 | ||
e2243057 RS |
99 | static const char *get_sysroot |
100 | (int, char **); | |
0125cdf2 | 101 | static char *get_emulation |
1579bae1 | 102 | (int, char **); |
0125cdf2 | 103 | static bfd_boolean add_archive_element |
5d3236ee | 104 | (struct bfd_link_info *, bfd *, const char *, bfd **); |
1a72702b | 105 | static void multiple_definition |
24f58f47 | 106 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
1579bae1 | 107 | bfd *, asection *, bfd_vma); |
1a72702b | 108 | static void multiple_common |
24f58f47 AM |
109 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
110 | bfd *, enum bfd_link_hash_type, bfd_vma); | |
1a72702b | 111 | static void add_to_set |
1579bae1 AM |
112 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
113 | bfd_reloc_code_real_type, bfd *, asection *, bfd_vma); | |
1a72702b | 114 | static void constructor_callback |
1579bae1 AM |
115 | (struct bfd_link_info *, bfd_boolean, const char *, bfd *, |
116 | asection *, bfd_vma); | |
1a72702b | 117 | static void warning_callback |
1579bae1 AM |
118 | (struct bfd_link_info *, const char *, const char *, bfd *, |
119 | asection *, bfd_vma); | |
0125cdf2 | 120 | static void warning_find_reloc |
1579bae1 | 121 | (bfd *, asection *, void *); |
1a72702b | 122 | static void undefined_symbol |
1579bae1 AM |
123 | (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma, |
124 | bfd_boolean); | |
1a72702b | 125 | static void reloc_overflow |
dfeffb9f L |
126 | (struct bfd_link_info *, struct bfd_link_hash_entry *, const char *, |
127 | const char *, bfd_vma, bfd *, asection *, bfd_vma); | |
1a72702b | 128 | static void reloc_dangerous |
1579bae1 | 129 | (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma); |
1a72702b | 130 | static void unattached_reloc |
1579bae1 | 131 | (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma); |
0125cdf2 | 132 | static bfd_boolean notice |
35ed3f94 | 133 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
46135103 | 134 | struct bfd_link_hash_entry *, bfd *, asection *, bfd_vma, flagword); |
0125cdf2 NC |
135 | |
136 | static struct bfd_link_callbacks link_callbacks = | |
137 | { | |
252b5132 RH |
138 | add_archive_element, |
139 | multiple_definition, | |
140 | multiple_common, | |
141 | add_to_set, | |
142 | constructor_callback, | |
143 | warning_callback, | |
144 | undefined_symbol, | |
145 | reloc_overflow, | |
146 | reloc_dangerous, | |
147 | unattached_reloc, | |
e1fffbe6 | 148 | notice, |
2889e75b | 149 | einfo, |
49fa1e15 AM |
150 | info_msg, |
151 | minfo, | |
1ff6de03 NA |
152 | ldlang_override_segment_assignment, |
153 | ldlang_ctf_apply_strsym, | |
154 | ldlang_write_ctf_late | |
252b5132 RH |
155 | }; |
156 | ||
3b66a141 | 157 | static bfd_assert_handler_type default_bfd_assert_handler; |
4519d071 | 158 | static bfd_error_handler_type default_bfd_error_handler; |
3b66a141 | 159 | |
252b5132 RH |
160 | struct bfd_link_info link_info; |
161 | \f | |
162 | static void | |
498cd2a0 | 163 | ld_cleanup (void) |
252b5132 | 164 | { |
498cd2a0 AM |
165 | bfd_cache_close_all (); |
166 | #ifdef ENABLE_PLUGINS | |
167 | plugin_call_cleanup (); | |
168 | #endif | |
169 | if (output_filename && delete_output_file_on_failure) | |
170 | unlink_if_ordinary (output_filename); | |
252b5132 RH |
171 | } |
172 | ||
4519d071 | 173 | /* Hook to notice BFD assertions. */ |
3b66a141 HPN |
174 | |
175 | static void | |
176 | ld_bfd_assert_handler (const char *fmt, const char *bfdver, | |
177 | const char *file, int line) | |
178 | { | |
3b66a141 | 179 | config.make_executable = FALSE; |
4519d071 AM |
180 | (*default_bfd_assert_handler) (fmt, bfdver, file, line); |
181 | } | |
182 | ||
183 | /* Hook the bfd error/warning handler for --fatal-warnings. */ | |
184 | ||
185 | static void | |
186 | ld_bfd_error_handler (const char *fmt, va_list ap) | |
187 | { | |
188 | if (config.fatal_warnings) | |
189 | config.make_executable = FALSE; | |
190 | (*default_bfd_error_handler) (fmt, ap); | |
3b66a141 HPN |
191 | } |
192 | ||
252b5132 | 193 | int |
1579bae1 | 194 | main (int argc, char **argv) |
252b5132 RH |
195 | { |
196 | char *emulation; | |
197 | long start_time = get_run_time (); | |
198 | ||
199 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) | |
200 | setlocale (LC_MESSAGES, ""); | |
3882b010 L |
201 | #endif |
202 | #if defined (HAVE_SETLOCALE) | |
203 | setlocale (LC_CTYPE, ""); | |
252b5132 RH |
204 | #endif |
205 | bindtextdomain (PACKAGE, LOCALEDIR); | |
206 | textdomain (PACKAGE); | |
207 | ||
208 | program_name = argv[0]; | |
209 | xmalloc_set_program_name (program_name); | |
210 | ||
211 | START_PROGRESS (program_name, 0); | |
212 | ||
869b9d07 MM |
213 | expandargv (&argc, &argv); |
214 | ||
bf2dd8d7 AM |
215 | if (bfd_init () != BFD_INIT_MAGIC) |
216 | einfo (_("%F%P: fatal error: libbfd ABI mismatch\n")); | |
252b5132 RH |
217 | |
218 | bfd_set_error_program_name (program_name); | |
219 | ||
3b66a141 HPN |
220 | /* We want to notice and fail on those nasty BFD assertions which are |
221 | likely to signal incorrect output being generated but otherwise may | |
222 | leave no trace. */ | |
223 | default_bfd_assert_handler = bfd_set_assert_handler (ld_bfd_assert_handler); | |
224 | ||
4519d071 AM |
225 | /* Also hook the bfd error/warning handler for --fatal-warnings. */ |
226 | default_bfd_error_handler = bfd_set_error_handler (ld_bfd_error_handler); | |
227 | ||
498cd2a0 | 228 | xatexit (ld_cleanup); |
252b5132 | 229 | |
e2243057 RS |
230 | /* Set up the sysroot directory. */ |
231 | ld_sysroot = get_sysroot (argc, argv); | |
232 | if (*ld_sysroot) | |
3074964f | 233 | ld_canon_sysroot = lrealpath (ld_sysroot); |
3fe38064 | 234 | if (ld_canon_sysroot) |
889be5db DR |
235 | { |
236 | ld_canon_sysroot_len = strlen (ld_canon_sysroot); | |
237 | ||
238 | /* is_sysrooted_pathname() relies on no trailing dirsep. */ | |
239 | if (ld_canon_sysroot_len > 0 | |
240 | && IS_DIR_SEPARATOR (ld_canon_sysroot [ld_canon_sysroot_len - 1])) | |
241 | ld_canon_sysroot [--ld_canon_sysroot_len] = '\0'; | |
242 | } | |
3fe38064 NC |
243 | else |
244 | ld_canon_sysroot_len = -1; | |
245 | ||
252b5132 RH |
246 | /* Set the default BFD target based on the configured target. Doing |
247 | this permits the linker to be configured for a particular target, | |
248 | and linked against a shared BFD library which was configured for | |
249 | a different target. The macro TARGET is defined by Makefile. */ | |
0aa7f586 | 250 | if (!bfd_set_default_target (TARGET)) |
252b5132 RH |
251 | { |
252 | einfo (_("%X%P: can't set BFD default target to `%s': %E\n"), TARGET); | |
253 | xexit (1); | |
254 | } | |
255 | ||
b47c4208 AM |
256 | #if YYDEBUG |
257 | { | |
258 | extern int yydebug; | |
259 | yydebug = 1; | |
260 | } | |
261 | #endif | |
262 | ||
b34976b6 | 263 | config.build_constructors = TRUE; |
c76308d2 | 264 | config.rpath_separator = ':'; |
a854a4a7 AM |
265 | config.split_by_reloc = (unsigned) -1; |
266 | config.split_by_file = (bfd_size_type) -1; | |
3b95049e AM |
267 | config.make_executable = TRUE; |
268 | config.magic_demand_paged = TRUE; | |
269 | config.text_read_only = TRUE; | |
035801ce | 270 | config.print_map_discarded = TRUE; |
4f9d22a0 | 271 | link_info.disable_target_specific_optimizations = -1; |
3b95049e | 272 | |
b34976b6 | 273 | command_line.warn_mismatch = TRUE; |
fe7929ce | 274 | command_line.warn_search_mismatch = TRUE; |
02b0b1aa | 275 | command_line.check_section_addresses = -1; |
bcaa7b3e | 276 | |
252b5132 RH |
277 | /* We initialize DEMANGLING based on the environment variable |
278 | COLLECT_NO_DEMANGLE. The gcc collect2 program will demangle the | |
279 | output of the linker, unless COLLECT_NO_DEMANGLE is set in the | |
280 | environment. Acting the same way here lets us provide the same | |
281 | interface by default. */ | |
282 | demangling = getenv ("COLLECT_NO_DEMANGLE") == NULL; | |
283 | ||
b34976b6 | 284 | link_info.allow_undefined_version = TRUE; |
b5067602 | 285 | link_info.keep_memory = TRUE; |
b5067602 | 286 | link_info.combreloc = TRUE; |
d5cd3933 | 287 | link_info.strip_discarded = TRUE; |
3f0a5f17 | 288 | link_info.prohibit_multiple_definition_absolute = FALSE; |
b32632c4 | 289 | link_info.textrel_check = DEFAULT_LD_TEXTREL_CHECK; |
2760f24c RG |
290 | link_info.emit_hash = DEFAULT_EMIT_SYSV_HASH; |
291 | link_info.emit_gnu_hash = DEFAULT_EMIT_GNU_HASH; | |
a9a4c53e AM |
292 | link_info.callbacks = &link_callbacks; |
293 | link_info.input_bfds_tail = &link_info.input_bfds; | |
3dbf70a2 MM |
294 | /* SVR4 linkers seem to set DT_INIT and DT_FINI based on magic _init |
295 | and _fini symbols. We are compatible. */ | |
296 | link_info.init_function = "_init"; | |
297 | link_info.fini_function = "_fini"; | |
a9a4c53e | 298 | link_info.relax_pass = 1; |
889c2a67 | 299 | link_info.extern_protected_data = -1; |
aec6b87e | 300 | link_info.dynamic_undefined_weak = -1; |
e0076ab3 | 301 | link_info.pei386_auto_import = -1; |
db6751f2 | 302 | link_info.spare_dynamic_tags = 5; |
967928e9 | 303 | link_info.path_separator = ':'; |
6c3bc0f8 NC |
304 | #ifdef DEFAULT_FLAG_COMPRESS_DEBUG |
305 | link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB; | |
306 | #endif | |
6734f10a | 307 | #ifdef DEFAULT_NEW_DTAGS |
91001320 | 308 | link_info.new_dtags = DEFAULT_NEW_DTAGS; |
6734f10a | 309 | #endif |
24718e3b | 310 | |
252b5132 | 311 | ldfile_add_arch (""); |
252b5132 RH |
312 | emulation = get_emulation (argc, argv); |
313 | ldemul_choose_mode (emulation); | |
742aeb63 | 314 | default_target = ldemul_choose_target (argc, argv); |
252b5132 | 315 | lang_init (); |
18d6a79d | 316 | ldexp_init (); |
252b5132 | 317 | ldemul_before_parse (); |
b34976b6 | 318 | lang_has_input_file = FALSE; |
252b5132 RH |
319 | parse_args (argc, argv); |
320 | ||
2d643429 NC |
321 | if (config.hash_table_size != 0) |
322 | bfd_hash_set_default_size (config.hash_table_size); | |
323 | ||
9bbc1a67 AM |
324 | #ifdef ENABLE_PLUGINS |
325 | /* Now all the plugin arguments have been gathered, we can load them. */ | |
d82184d7 | 326 | plugin_load_plugins (); |
9bbc1a67 | 327 | #endif /* ENABLE_PLUGINS */ |
36af4a4e | 328 | |
9bbc1a67 | 329 | ldemul_set_symbols (); |
252b5132 | 330 | |
14be8564 L |
331 | /* If we have not already opened and parsed a linker script, |
332 | try the default script from command line first. */ | |
333 | if (saved_script_handle == NULL | |
334 | && command_line.default_script != NULL) | |
335 | { | |
6ec6968b | 336 | ldfile_open_script_file (command_line.default_script); |
14be8564 L |
337 | parser_input = input_script; |
338 | yyparse (); | |
339 | } | |
340 | ||
b9a8de1e NC |
341 | /* If we have not already opened and parsed a linker script |
342 | read the emulation's appropriate default script. */ | |
b90e1c6f | 343 | if (saved_script_handle == NULL) |
252b5132 | 344 | { |
252b5132 | 345 | int isfile; |
b7a26f91 | 346 | char *s = ldemul_get_script (&isfile); |
252b5132 RH |
347 | |
348 | if (isfile) | |
7d24f02c | 349 | ldfile_open_default_command_file (s); |
252b5132 | 350 | else |
b7a26f91 | 351 | { |
252b5132 | 352 | lex_string = s; |
dab69f68 | 353 | lex_redirect (s, _("built in linker script"), 1); |
252b5132 RH |
354 | } |
355 | parser_input = input_script; | |
356 | yyparse (); | |
357 | lex_string = NULL; | |
358 | } | |
359 | ||
cd6f1cf3 | 360 | if (verbose) |
b9a8de1e | 361 | { |
9cb61eab AM |
362 | if (saved_script_handle) |
363 | info_msg (_("using external linker script:")); | |
364 | else | |
365 | info_msg (_("using internal linker script:")); | |
366 | info_msg ("\n==================================================\n"); | |
b9a8de1e NC |
367 | |
368 | if (saved_script_handle) | |
369 | { | |
74699268 | 370 | static const int ld_bufsz = 8193; |
b9a8de1e | 371 | size_t n; |
1e9cc1c2 | 372 | char *buf = (char *) xmalloc (ld_bufsz); |
b9a8de1e NC |
373 | |
374 | rewind (saved_script_handle); | |
74699268 | 375 | while ((n = fread (buf, 1, ld_bufsz - 1, saved_script_handle)) > 0) |
b9a8de1e | 376 | { |
b7a26f91 | 377 | buf[n] = 0; |
f5ac6ab3 | 378 | info_msg ("%s", buf); |
b9a8de1e NC |
379 | } |
380 | rewind (saved_script_handle); | |
381 | free (buf); | |
382 | } | |
383 | else | |
384 | { | |
385 | int isfile; | |
386 | ||
b7a26f91 | 387 | info_msg (ldemul_get_script (&isfile)); |
b9a8de1e | 388 | } |
b7a26f91 | 389 | |
b9a8de1e NC |
390 | info_msg ("\n==================================================\n"); |
391 | } | |
392 | ||
7bdf4127 AB |
393 | if (command_line.force_group_allocation |
394 | || !bfd_link_relocatable (&link_info)) | |
395 | link_info.resolve_section_groups = TRUE; | |
396 | else | |
397 | link_info.resolve_section_groups = FALSE; | |
398 | ||
30824704 RM |
399 | if (command_line.print_output_format) |
400 | info_msg ("%s\n", lang_get_output_target ()); | |
401 | ||
252b5132 RH |
402 | lang_final (); |
403 | ||
61e2488c JT |
404 | /* If the only command line argument has been -v or --version or --verbose |
405 | then ignore any input files provided by linker scripts and exit now. | |
406 | We do not want to create an output file when the linker is just invoked | |
407 | to provide version information. */ | |
408 | if (argc == 2 && version_printed) | |
409 | xexit (0); | |
410 | ||
a4819f54 | 411 | if (link_info.inhibit_common_definition && !bfd_link_dll (&link_info)) |
df5f2391 | 412 | einfo (_("%F%P: --no-define-common may not be used without -shared\n")); |
a4819f54 | 413 | |
b34976b6 | 414 | if (!lang_has_input_file) |
252b5132 | 415 | { |
30824704 | 416 | if (version_printed || command_line.print_output_format) |
252b5132 | 417 | xexit (0); |
df5f2391 | 418 | einfo (_("%F%P: no input files\n")); |
252b5132 RH |
419 | } |
420 | ||
5c87f94b | 421 | if (verbose) |
0125cdf2 | 422 | info_msg (_("%P: mode %s\n"), emulation); |
252b5132 RH |
423 | |
424 | ldemul_after_parse (); | |
425 | ||
252b5132 RH |
426 | if (config.map_filename) |
427 | { | |
428 | if (strcmp (config.map_filename, "-") == 0) | |
429 | { | |
430 | config.map_file = stdout; | |
431 | } | |
432 | else | |
433 | { | |
434 | config.map_file = fopen (config.map_filename, FOPEN_WT); | |
435 | if (config.map_file == (FILE *) NULL) | |
436 | { | |
437 | bfd_set_error (bfd_error_system_call); | |
df5f2391 | 438 | einfo (_("%F%P: cannot open map file %s: %E\n"), |
252b5132 RH |
439 | config.map_filename); |
440 | } | |
441 | } | |
d2ef37eb | 442 | link_info.has_map_file = TRUE; |
252b5132 RH |
443 | } |
444 | ||
252b5132 RH |
445 | lang_process (); |
446 | ||
447 | /* Print error messages for any missing symbols, for any warning | |
6d5e62f8 | 448 | symbols, and possibly multiple definitions. */ |
0e1862bb | 449 | if (bfd_link_relocatable (&link_info)) |
f13a99db | 450 | link_info.output_bfd->flags &= ~EXEC_P; |
252b5132 | 451 | else |
f13a99db | 452 | link_info.output_bfd->flags |= EXEC_P; |
252b5132 | 453 | |
0ce398f1 L |
454 | if ((link_info.compress_debug & COMPRESS_DEBUG)) |
455 | { | |
456 | link_info.output_bfd->flags |= BFD_COMPRESS; | |
457 | if (link_info.compress_debug == COMPRESS_DEBUG_GABI_ZLIB) | |
458 | link_info.output_bfd->flags |= BFD_COMPRESS_GABI; | |
459 | } | |
460 | ||
252b5132 RH |
461 | ldwrite (); |
462 | ||
463 | if (config.map_file != NULL) | |
464 | lang_map (); | |
465 | if (command_line.cref) | |
466 | output_cref (config.map_file != NULL ? config.map_file : stdout); | |
467 | if (nocrossref_list != NULL) | |
468 | check_nocrossrefs (); | |
3604cb1f TG |
469 | if (command_line.print_memory_usage) |
470 | lang_print_memory_usage (); | |
edf84efc NC |
471 | #if 0 |
472 | { | |
0aa7f586 | 473 | struct bfd_link_hash_entry *h; |
252b5132 | 474 | |
edf84efc NC |
475 | h = bfd_link_hash_lookup (link_info.hash, "__image_base__", 0,0,1); |
476 | fprintf (stderr, "lookup = %p val %lx\n", h, h ? h->u.def.value : 1); | |
477 | } | |
478 | #endif | |
18d6a79d | 479 | ldexp_finish (); |
750877ba L |
480 | lang_finish (); |
481 | ||
1049f94e | 482 | /* Even if we're producing relocatable output, some non-fatal errors should |
252b5132 | 483 | be reported in the exit status. (What non-fatal errors, if any, do we |
1049f94e | 484 | want to ignore for relocatable output?) */ |
b34976b6 | 485 | if (!config.make_executable && !force_make_executable) |
252b5132 | 486 | { |
5c87f94b | 487 | if (verbose) |
0125cdf2 NC |
488 | einfo (_("%P: link errors found, deleting executable `%s'\n"), |
489 | output_filename); | |
252b5132 | 490 | |
4309cbf2 | 491 | /* The file will be removed by ld_cleanup. */ |
252b5132 RH |
492 | xexit (1); |
493 | } | |
494 | else | |
495 | { | |
0aa7f586 | 496 | if (!bfd_close (link_info.output_bfd)) |
df5f2391 | 497 | einfo (_("%F%P: %pB: final close failed: %E\n"), link_info.output_bfd); |
252b5132 RH |
498 | |
499 | /* If the --force-exe-suffix is enabled, and we're making an | |
6d5e62f8 KH |
500 | executable file and it doesn't end in .exe, copy it to one |
501 | which does. */ | |
0e1862bb L |
502 | if (!bfd_link_relocatable (&link_info) |
503 | && command_line.force_exe_suffix) | |
252b5132 RH |
504 | { |
505 | int len = strlen (output_filename); | |
0125cdf2 | 506 | |
6d5e62f8 | 507 | if (len < 4 |
252b5132 RH |
508 | || (strcasecmp (output_filename + len - 4, ".exe") != 0 |
509 | && strcasecmp (output_filename + len - 4, ".dll") != 0)) | |
510 | { | |
511 | FILE *src; | |
512 | FILE *dst; | |
513 | const int bsize = 4096; | |
1e9cc1c2 | 514 | char *buf = (char *) xmalloc (bsize); |
252b5132 | 515 | int l; |
1e9cc1c2 | 516 | char *dst_name = (char *) xmalloc (len + 5); |
0125cdf2 | 517 | |
252b5132 RH |
518 | strcpy (dst_name, output_filename); |
519 | strcat (dst_name, ".exe"); | |
520 | src = fopen (output_filename, FOPEN_RB); | |
521 | dst = fopen (dst_name, FOPEN_WB); | |
522 | ||
523 | if (!src) | |
df5f2391 | 524 | einfo (_("%F%P: unable to open for source of copy `%s'\n"), |
1579bae1 | 525 | output_filename); |
252b5132 | 526 | if (!dst) |
df5f2391 | 527 | einfo (_("%F%P: unable to open for destination of copy `%s'\n"), |
1579bae1 | 528 | dst_name); |
252b5132 RH |
529 | while ((l = fread (buf, 1, bsize, src)) > 0) |
530 | { | |
531 | int done = fwrite (buf, 1, l, dst); | |
0125cdf2 | 532 | |
252b5132 | 533 | if (done != l) |
df5f2391 | 534 | einfo (_("%P: error writing file `%s'\n"), dst_name); |
252b5132 | 535 | } |
0125cdf2 | 536 | |
252b5132 RH |
537 | fclose (src); |
538 | if (fclose (dst) == EOF) | |
df5f2391 | 539 | einfo (_("%P: error closing file `%s'\n"), dst_name); |
252b5132 RH |
540 | free (dst_name); |
541 | free (buf); | |
542 | } | |
543 | } | |
544 | } | |
545 | ||
546 | END_PROGRESS (program_name); | |
547 | ||
548 | if (config.stats) | |
549 | { | |
252b5132 RH |
550 | long run_time = get_run_time () - start_time; |
551 | ||
e922bcab | 552 | fflush (stdout); |
252b5132 RH |
553 | fprintf (stderr, _("%s: total time in link: %ld.%06ld\n"), |
554 | program_name, run_time / 1000000, run_time % 1000000); | |
e922bcab | 555 | fflush (stderr); |
252b5132 RH |
556 | } |
557 | ||
4309cbf2 | 558 | /* Prevent ld_cleanup from doing anything, after a successful link. */ |
252b5132 RH |
559 | output_filename = NULL; |
560 | ||
561 | xexit (0); | |
562 | return 0; | |
563 | } | |
564 | ||
e2243057 RS |
565 | /* If the configured sysroot is relocatable, try relocating it based on |
566 | default prefix FROM. Return the relocated directory if it exists, | |
567 | otherwise return null. */ | |
568 | ||
569 | static char * | |
570 | get_relative_sysroot (const char *from ATTRIBUTE_UNUSED) | |
571 | { | |
572 | #ifdef TARGET_SYSTEM_ROOT_RELOCATABLE | |
573 | char *path; | |
574 | struct stat s; | |
575 | ||
576 | path = make_relative_prefix (program_name, from, TARGET_SYSTEM_ROOT); | |
577 | if (path) | |
578 | { | |
579 | if (stat (path, &s) == 0 && S_ISDIR (s.st_mode)) | |
580 | return path; | |
581 | free (path); | |
582 | } | |
583 | #endif | |
584 | return 0; | |
585 | } | |
586 | ||
587 | /* Return the sysroot directory. Return "" if no sysroot is being used. */ | |
588 | ||
589 | static const char * | |
590 | get_sysroot (int argc, char **argv) | |
591 | { | |
592 | int i; | |
55d5520a | 593 | const char *path = NULL; |
e2243057 RS |
594 | |
595 | for (i = 1; i < argc; i++) | |
0112cd26 | 596 | if (CONST_STRNEQ (argv[i], "--sysroot=")) |
55d5520a | 597 | path = argv[i] + strlen ("--sysroot="); |
e2243057 | 598 | |
55d5520a AM |
599 | if (!path) |
600 | path = get_relative_sysroot (BINDIR); | |
e2243057 | 601 | |
55d5520a AM |
602 | if (!path) |
603 | path = get_relative_sysroot (TOOLBINDIR); | |
604 | ||
605 | if (!path) | |
606 | path = TARGET_SYSTEM_ROOT; | |
607 | ||
608 | if (IS_DIR_SEPARATOR (*path) && path[1] == 0) | |
609 | path = ""; | |
e2243057 | 610 | |
55d5520a | 611 | return path; |
e2243057 RS |
612 | } |
613 | ||
252b5132 RH |
614 | /* We need to find any explicitly given emulation in order to initialize the |
615 | state that's needed by the lex&yacc argument parser (parse_args). */ | |
616 | ||
617 | static char * | |
1579bae1 | 618 | get_emulation (int argc, char **argv) |
252b5132 RH |
619 | { |
620 | char *emulation; | |
621 | int i; | |
622 | ||
623 | emulation = getenv (EMULATION_ENVIRON); | |
624 | if (emulation == NULL) | |
625 | emulation = DEFAULT_EMULATION; | |
626 | ||
627 | for (i = 1; i < argc; i++) | |
628 | { | |
0112cd26 | 629 | if (CONST_STRNEQ (argv[i], "-m")) |
252b5132 RH |
630 | { |
631 | if (argv[i][2] == '\0') | |
632 | { | |
633 | /* -m EMUL */ | |
634 | if (i < argc - 1) | |
635 | { | |
636 | emulation = argv[i + 1]; | |
637 | i++; | |
638 | } | |
639 | else | |
df5f2391 | 640 | einfo (_("%F%P: missing argument to -m\n")); |
252b5132 RH |
641 | } |
642 | else if (strcmp (argv[i], "-mips1") == 0 | |
643 | || strcmp (argv[i], "-mips2") == 0 | |
644 | || strcmp (argv[i], "-mips3") == 0 | |
d1cf510e | 645 | || strcmp (argv[i], "-mips4") == 0 |
6f33421c CD |
646 | || strcmp (argv[i], "-mips5") == 0 |
647 | || strcmp (argv[i], "-mips32") == 0 | |
648 | || strcmp (argv[i], "-mips32r2") == 0 | |
7361da2c | 649 | || strcmp (argv[i], "-mips32r6") == 0 |
5f74bc13 | 650 | || strcmp (argv[i], "-mips64") == 0 |
7361da2c AB |
651 | || strcmp (argv[i], "-mips64r2") == 0 |
652 | || strcmp (argv[i], "-mips64r6") == 0) | |
252b5132 | 653 | { |
31d677f9 | 654 | /* FIXME: The arguments -mips1, -mips2, -mips3, etc. are |
252b5132 RH |
655 | passed to the linker by some MIPS compilers. They |
656 | generally tell the linker to use a slightly different | |
657 | library path. Perhaps someday these should be | |
658 | implemented as emulations; until then, we just ignore | |
659 | the arguments and hope that nobody ever creates | |
660 | emulations named ips1, ips2 or ips3. */ | |
661 | } | |
662 | else if (strcmp (argv[i], "-m486") == 0) | |
663 | { | |
664 | /* FIXME: The argument -m486 is passed to the linker on | |
665 | some Linux systems. Hope that nobody creates an | |
666 | emulation named 486. */ | |
667 | } | |
668 | else | |
669 | { | |
670 | /* -mEMUL */ | |
671 | emulation = &argv[i][2]; | |
672 | } | |
673 | } | |
674 | } | |
675 | ||
676 | return emulation; | |
677 | } | |
678 | ||
252b5132 | 679 | void |
1579bae1 | 680 | add_ysym (const char *name) |
252b5132 | 681 | { |
1579bae1 | 682 | if (link_info.notice_hash == NULL) |
252b5132 | 683 | { |
0aa7f586 AM |
684 | link_info.notice_hash |
685 | = (struct bfd_hash_table *) xmalloc (sizeof (struct bfd_hash_table)); | |
66eb6687 AM |
686 | if (!bfd_hash_table_init_n (link_info.notice_hash, |
687 | bfd_hash_newfunc, | |
688 | sizeof (struct bfd_hash_entry), | |
689 | 61)) | |
df5f2391 | 690 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
6d5e62f8 | 691 | } |
252b5132 | 692 | |
1579bae1 | 693 | if (bfd_hash_lookup (link_info.notice_hash, name, TRUE, TRUE) == NULL) |
df5f2391 | 694 | einfo (_("%F%P: bfd_hash_lookup failed: %E\n")); |
252b5132 RH |
695 | } |
696 | ||
0e86e20e AM |
697 | void |
698 | add_ignoresym (struct bfd_link_info *info, const char *name) | |
699 | { | |
700 | if (info->ignore_hash == NULL) | |
701 | { | |
702 | info->ignore_hash = xmalloc (sizeof (struct bfd_hash_table)); | |
0aa7f586 AM |
703 | if (!bfd_hash_table_init_n (info->ignore_hash, |
704 | bfd_hash_newfunc, | |
705 | sizeof (struct bfd_hash_entry), | |
706 | 61)) | |
df5f2391 | 707 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
0e86e20e AM |
708 | } |
709 | ||
710 | if (bfd_hash_lookup (info->ignore_hash, name, TRUE, TRUE) == NULL) | |
df5f2391 | 711 | einfo (_("%F%P: bfd_hash_lookup failed: %E\n")); |
0e86e20e AM |
712 | } |
713 | ||
252b5132 RH |
714 | /* Record a symbol to be wrapped, from the --wrap option. */ |
715 | ||
716 | void | |
1579bae1 | 717 | add_wrap (const char *name) |
252b5132 RH |
718 | { |
719 | if (link_info.wrap_hash == NULL) | |
720 | { | |
0aa7f586 AM |
721 | link_info.wrap_hash |
722 | = (struct bfd_hash_table *) xmalloc (sizeof (struct bfd_hash_table)); | |
66eb6687 AM |
723 | if (!bfd_hash_table_init_n (link_info.wrap_hash, |
724 | bfd_hash_newfunc, | |
725 | sizeof (struct bfd_hash_entry), | |
726 | 61)) | |
df5f2391 | 727 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
252b5132 | 728 | } |
0125cdf2 | 729 | |
b34976b6 | 730 | if (bfd_hash_lookup (link_info.wrap_hash, name, TRUE, TRUE) == NULL) |
df5f2391 | 731 | einfo (_("%F%P: bfd_hash_lookup failed: %E\n")); |
252b5132 RH |
732 | } |
733 | ||
734 | /* Handle the -retain-symbols-file option. */ | |
735 | ||
736 | void | |
1579bae1 | 737 | add_keepsyms_file (const char *filename) |
252b5132 RH |
738 | { |
739 | FILE *file; | |
740 | char *buf; | |
741 | size_t bufsize; | |
742 | int c; | |
743 | ||
744 | if (link_info.strip == strip_some) | |
745 | einfo (_("%X%P: error: duplicate retain-symbols-file\n")); | |
746 | ||
747 | file = fopen (filename, "r"); | |
1579bae1 | 748 | if (file == NULL) |
252b5132 RH |
749 | { |
750 | bfd_set_error (bfd_error_system_call); | |
751 | einfo ("%X%P: %s: %E\n", filename); | |
752 | return; | |
753 | } | |
754 | ||
1e9cc1c2 NC |
755 | link_info.keep_hash = (struct bfd_hash_table *) |
756 | xmalloc (sizeof (struct bfd_hash_table)); | |
66eb6687 AM |
757 | if (!bfd_hash_table_init (link_info.keep_hash, bfd_hash_newfunc, |
758 | sizeof (struct bfd_hash_entry))) | |
df5f2391 | 759 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
252b5132 RH |
760 | |
761 | bufsize = 100; | |
1e9cc1c2 | 762 | buf = (char *) xmalloc (bufsize); |
252b5132 RH |
763 | |
764 | c = getc (file); | |
765 | while (c != EOF) | |
766 | { | |
3882b010 | 767 | while (ISSPACE (c)) |
252b5132 RH |
768 | c = getc (file); |
769 | ||
770 | if (c != EOF) | |
771 | { | |
772 | size_t len = 0; | |
773 | ||
0aa7f586 | 774 | while (!ISSPACE (c) && c != EOF) |
252b5132 RH |
775 | { |
776 | buf[len] = c; | |
777 | ++len; | |
778 | if (len >= bufsize) | |
779 | { | |
780 | bufsize *= 2; | |
1e9cc1c2 | 781 | buf = (char *) xrealloc (buf, bufsize); |
252b5132 RH |
782 | } |
783 | c = getc (file); | |
784 | } | |
785 | ||
786 | buf[len] = '\0'; | |
787 | ||
1579bae1 | 788 | if (bfd_hash_lookup (link_info.keep_hash, buf, TRUE, TRUE) == NULL) |
df5f2391 | 789 | einfo (_("%F%P: bfd_hash_lookup for insertion failed: %E\n")); |
252b5132 RH |
790 | } |
791 | } | |
792 | ||
793 | if (link_info.strip != strip_none) | |
794 | einfo (_("%P: `-retain-symbols-file' overrides `-s' and `-S'\n")); | |
795 | ||
5ed6aba4 | 796 | free (buf); |
252b5132 | 797 | link_info.strip = strip_some; |
d9313f4f | 798 | fclose (file); |
252b5132 RH |
799 | } |
800 | \f | |
801 | /* Callbacks from the BFD linker routines. */ | |
802 | ||
803 | /* This is called when BFD has decided to include an archive member in | |
804 | a link. */ | |
805 | ||
b34976b6 | 806 | static bfd_boolean |
e1fffbe6 | 807 | add_archive_element (struct bfd_link_info *info, |
1579bae1 | 808 | bfd *abfd, |
5d3236ee DK |
809 | const char *name, |
810 | bfd **subsbfd ATTRIBUTE_UNUSED) | |
252b5132 RH |
811 | { |
812 | lang_input_statement_type *input; | |
1fa4ec6a | 813 | lang_input_statement_type *parent; |
5d3236ee | 814 | lang_input_statement_type orig_input; |
252b5132 | 815 | |
1e9cc1c2 NC |
816 | input = (lang_input_statement_type *) |
817 | xcalloc (1, sizeof (lang_input_statement_type)); | |
fb47deda | 818 | input->header.type = lang_input_statement_enum; |
607b4833 AM |
819 | input->filename = bfd_get_filename (abfd); |
820 | input->local_sym_name = bfd_get_filename (abfd); | |
252b5132 | 821 | input->the_bfd = abfd; |
252b5132 | 822 | |
00f93c44 | 823 | parent = bfd_usrdata (abfd->my_archive); |
1fa4ec6a | 824 | if (parent != NULL && !parent->flags.reload) |
36983a93 | 825 | parent->next = input; |
1fa4ec6a | 826 | |
5d3236ee DK |
827 | /* Save the original data for trace files/tries below, as plugins |
828 | (if enabled) may possibly alter it to point to a replacement | |
829 | BFD, but we still want to output the original BFD filename. */ | |
830 | orig_input = *input; | |
831 | #ifdef ENABLE_PLUGINS | |
b95a0a31 | 832 | if (link_info.lto_plugin_active) |
5d3236ee DK |
833 | { |
834 | /* We must offer this archive member to the plugins to claim. */ | |
35a1e5f3 L |
835 | plugin_maybe_claim (input); |
836 | if (input->flags.claimed) | |
5d3236ee | 837 | { |
b95a0a31 L |
838 | if (no_more_claiming) |
839 | { | |
840 | /* Don't claim new IR symbols after all IR symbols have | |
841 | been claimed. */ | |
5c87f94b | 842 | if (verbose) |
6e0c75f7 | 843 | info_msg ("%pI: no new IR symbols to claim\n", |
b95a0a31 L |
844 | &orig_input); |
845 | input->flags.claimed = 0; | |
846 | return FALSE; | |
847 | } | |
35a1e5f3 L |
848 | input->flags.claim_archive = TRUE; |
849 | *subsbfd = input->the_bfd; | |
5d3236ee DK |
850 | } |
851 | } | |
852 | #endif /* ENABLE_PLUGINS */ | |
853 | ||
252b5132 RH |
854 | ldlang_add_file (input); |
855 | ||
1579bae1 | 856 | if (config.map_file != NULL) |
252b5132 | 857 | { |
b34976b6 | 858 | static bfd_boolean header_printed; |
252b5132 RH |
859 | struct bfd_link_hash_entry *h; |
860 | bfd *from; | |
861 | int len; | |
862 | ||
e1fffbe6 | 863 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); |
aa654ee8 AM |
864 | if (h == NULL |
865 | && info->pei386_auto_import | |
866 | && CONST_STRNEQ (name, "__imp_")) | |
867 | h = bfd_link_hash_lookup (info->hash, name + 6, FALSE, FALSE, TRUE); | |
252b5132 RH |
868 | |
869 | if (h == NULL) | |
870 | from = NULL; | |
871 | else | |
872 | { | |
873 | switch (h->type) | |
874 | { | |
875 | default: | |
876 | from = NULL; | |
877 | break; | |
878 | ||
879 | case bfd_link_hash_defined: | |
880 | case bfd_link_hash_defweak: | |
881 | from = h->u.def.section->owner; | |
882 | break; | |
883 | ||
884 | case bfd_link_hash_undefined: | |
885 | case bfd_link_hash_undefweak: | |
886 | from = h->u.undef.abfd; | |
887 | break; | |
888 | ||
889 | case bfd_link_hash_common: | |
890 | from = h->u.c.p->section->owner; | |
891 | break; | |
892 | } | |
893 | } | |
894 | ||
0aa7f586 | 895 | if (!header_printed) |
252b5132 | 896 | { |
1273da04 | 897 | minfo (_("Archive member included to satisfy reference by file (symbol)\n\n")); |
b34976b6 | 898 | header_printed = TRUE; |
252b5132 RH |
899 | } |
900 | ||
3860d2b4 AM |
901 | if (abfd->my_archive == NULL |
902 | || bfd_is_thin_archive (abfd->my_archive)) | |
252b5132 RH |
903 | { |
904 | minfo ("%s", bfd_get_filename (abfd)); | |
905 | len = strlen (bfd_get_filename (abfd)); | |
906 | } | |
907 | else | |
908 | { | |
3860d2b4 | 909 | minfo ("%s(%s)", bfd_get_filename (abfd->my_archive), |
252b5132 | 910 | bfd_get_filename (abfd)); |
3860d2b4 | 911 | len = (strlen (bfd_get_filename (abfd->my_archive)) |
252b5132 RH |
912 | + strlen (bfd_get_filename (abfd)) |
913 | + 2); | |
914 | } | |
915 | ||
916 | if (len >= 29) | |
917 | { | |
918 | print_nl (); | |
919 | len = 0; | |
920 | } | |
921 | while (len < 30) | |
922 | { | |
923 | print_space (); | |
924 | ++len; | |
925 | } | |
926 | ||
927 | if (from != NULL) | |
871b3ab2 | 928 | minfo ("%pB ", from); |
252b5132 | 929 | if (h != NULL) |
c1c8c1ef | 930 | minfo ("(%pT)\n", h->root.string); |
252b5132 RH |
931 | else |
932 | minfo ("(%s)\n", name); | |
933 | } | |
934 | ||
727a29ba AM |
935 | if (verbose |
936 | || trace_files > 1 | |
937 | || (trace_files && bfd_is_thin_archive (orig_input.the_bfd->my_archive))) | |
c1c8c1ef | 938 | info_msg ("%pI\n", &orig_input); |
b34976b6 | 939 | return TRUE; |
252b5132 RH |
940 | } |
941 | ||
942 | /* This is called when BFD has discovered a symbol which is defined | |
943 | multiple times. */ | |
944 | ||
1a72702b | 945 | static void |
24f58f47 AM |
946 | multiple_definition (struct bfd_link_info *info, |
947 | struct bfd_link_hash_entry *h, | |
1579bae1 AM |
948 | bfd *nbfd, |
949 | asection *nsec, | |
950 | bfd_vma nval) | |
252b5132 | 951 | { |
24f58f47 AM |
952 | const char *name; |
953 | bfd *obfd; | |
954 | asection *osec; | |
955 | bfd_vma oval; | |
956 | ||
957 | if (info->allow_multiple_definition) | |
1a72702b | 958 | return; |
24f58f47 AM |
959 | |
960 | switch (h->type) | |
961 | { | |
962 | case bfd_link_hash_defined: | |
963 | osec = h->u.def.section; | |
964 | oval = h->u.def.value; | |
965 | obfd = h->u.def.section->owner; | |
966 | break; | |
967 | case bfd_link_hash_indirect: | |
968 | osec = bfd_ind_section_ptr; | |
969 | oval = 0; | |
970 | obfd = NULL; | |
971 | break; | |
972 | default: | |
973 | abort (); | |
974 | } | |
975 | ||
976 | /* Ignore a redefinition of an absolute symbol to the | |
977 | same value; it's harmless. */ | |
978 | if (h->type == bfd_link_hash_defined | |
979 | && bfd_is_abs_section (osec) | |
980 | && bfd_is_abs_section (nsec) | |
981 | && nval == oval) | |
1a72702b | 982 | return; |
24f58f47 | 983 | |
252b5132 RH |
984 | /* If either section has the output_section field set to |
985 | bfd_abs_section_ptr, it means that the section is being | |
986 | discarded, and this is not really a multiple definition at all. | |
9e2278f5 AM |
987 | FIXME: It would be cleaner to somehow ignore symbols defined in |
988 | sections which are being discarded. */ | |
3f0a5f17 ME |
989 | if (!info->prohibit_multiple_definition_absolute |
990 | && ((osec->output_section != NULL | |
991 | && ! bfd_is_abs_section (osec) | |
992 | && bfd_is_abs_section (osec->output_section)) | |
993 | || (nsec->output_section != NULL | |
994 | && !bfd_is_abs_section (nsec) | |
995 | && bfd_is_abs_section (nsec->output_section)))) | |
1a72702b | 996 | return; |
252b5132 | 997 | |
24f58f47 AM |
998 | name = h->root.string; |
999 | if (nbfd == NULL) | |
1000 | { | |
1001 | nbfd = obfd; | |
1002 | nsec = osec; | |
1003 | nval = oval; | |
1004 | obfd = NULL; | |
1005 | } | |
df5f2391 | 1006 | einfo (_("%X%P: %C: multiple definition of `%pT'"), |
252b5132 | 1007 | nbfd, nsec, nval, name); |
1579bae1 | 1008 | if (obfd != NULL) |
df5f2391 AM |
1009 | einfo (_("; %D: first defined here"), obfd, osec, oval); |
1010 | einfo ("\n"); | |
9b14b192 | 1011 | |
13761a11 | 1012 | if (RELAXATION_ENABLED_BY_USER) |
9b14b192 | 1013 | { |
df5f2391 | 1014 | einfo (_("%P: disabling relaxation; it will not work with multiple definitions\n")); |
13761a11 | 1015 | DISABLE_RELAXATION; |
9b14b192 | 1016 | } |
252b5132 RH |
1017 | } |
1018 | ||
1019 | /* This is called when there is a definition of a common symbol, or | |
1020 | when a common symbol is found for a symbol that is already defined, | |
1021 | or when two common symbols are found. We only do something if | |
1022 | -warn-common was used. */ | |
1023 | ||
1a72702b | 1024 | static void |
1579bae1 | 1025 | multiple_common (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
24f58f47 | 1026 | struct bfd_link_hash_entry *h, |
1579bae1 AM |
1027 | bfd *nbfd, |
1028 | enum bfd_link_hash_type ntype, | |
1029 | bfd_vma nsize) | |
252b5132 | 1030 | { |
24f58f47 AM |
1031 | const char *name; |
1032 | bfd *obfd; | |
1033 | enum bfd_link_hash_type otype; | |
1034 | bfd_vma osize; | |
1035 | ||
1036 | if (!config.warn_common) | |
1a72702b | 1037 | return; |
252b5132 | 1038 | |
24f58f47 AM |
1039 | name = h->root.string; |
1040 | otype = h->type; | |
1041 | if (otype == bfd_link_hash_common) | |
1042 | { | |
1043 | obfd = h->u.c.p->section->owner; | |
1044 | osize = h->u.c.size; | |
1045 | } | |
1046 | else if (otype == bfd_link_hash_defined | |
1047 | || otype == bfd_link_hash_defweak) | |
1048 | { | |
1049 | obfd = h->u.def.section->owner; | |
1050 | osize = 0; | |
1051 | } | |
1052 | else | |
1053 | { | |
1054 | /* FIXME: It would nice if we could report the BFD which defined | |
1055 | an indirect symbol, but we don't have anywhere to store the | |
1056 | information. */ | |
1057 | obfd = NULL; | |
1058 | osize = 0; | |
1059 | } | |
1060 | ||
252b5132 RH |
1061 | if (ntype == bfd_link_hash_defined |
1062 | || ntype == bfd_link_hash_defweak | |
1063 | || ntype == bfd_link_hash_indirect) | |
1064 | { | |
1065 | ASSERT (otype == bfd_link_hash_common); | |
252b5132 | 1066 | if (obfd != NULL) |
df5f2391 AM |
1067 | einfo (_("%P: %pB: warning: definition of `%pT' overriding common" |
1068 | " from %pB\n"), | |
1069 | nbfd, name, obfd); | |
1070 | else | |
1071 | einfo (_("%P: %pB: warning: definition of `%pT' overriding common\n"), | |
1072 | nbfd, name); | |
252b5132 RH |
1073 | } |
1074 | else if (otype == bfd_link_hash_defined | |
1075 | || otype == bfd_link_hash_defweak | |
1076 | || otype == bfd_link_hash_indirect) | |
1077 | { | |
1078 | ASSERT (ntype == bfd_link_hash_common); | |
252b5132 | 1079 | if (obfd != NULL) |
df5f2391 AM |
1080 | einfo (_("%P: %pB: warning: common of `%pT' overridden by definition" |
1081 | " from %pB\n"), | |
1082 | nbfd, name, obfd); | |
1083 | else | |
1084 | einfo (_("%P: %pB: warning: common of `%pT' overridden by definition\n"), | |
1085 | nbfd, name); | |
252b5132 RH |
1086 | } |
1087 | else | |
1088 | { | |
1089 | ASSERT (otype == bfd_link_hash_common && ntype == bfd_link_hash_common); | |
1090 | if (osize > nsize) | |
1091 | { | |
252b5132 | 1092 | if (obfd != NULL) |
df5f2391 AM |
1093 | einfo (_("%P: %pB: warning: common of `%pT' overridden" |
1094 | " by larger common from %pB\n"), | |
1095 | nbfd, name, obfd); | |
1096 | else | |
1097 | einfo (_("%P: %pB: warning: common of `%pT' overridden" | |
1098 | " by larger common\n"), | |
1099 | nbfd, name); | |
252b5132 RH |
1100 | } |
1101 | else if (nsize > osize) | |
1102 | { | |
252b5132 | 1103 | if (obfd != NULL) |
df5f2391 AM |
1104 | einfo (_("%P: %pB: warning: common of `%pT' overriding" |
1105 | " smaller common from %pB\n"), | |
1106 | nbfd, name, obfd); | |
1107 | else | |
1108 | einfo (_("%P: %pB: warning: common of `%pT' overriding" | |
1109 | " smaller common\n"), | |
1110 | nbfd, name); | |
252b5132 RH |
1111 | } |
1112 | else | |
1113 | { | |
252b5132 | 1114 | if (obfd != NULL) |
df5f2391 AM |
1115 | einfo (_("%P: %pB and %pB: warning: multiple common of `%pT'\n"), |
1116 | nbfd, obfd, name); | |
1117 | else | |
1118 | einfo (_("%P: %pB: warning: multiple common of `%pT'\n"), | |
1119 | nbfd, name); | |
252b5132 RH |
1120 | } |
1121 | } | |
252b5132 RH |
1122 | } |
1123 | ||
1124 | /* This is called when BFD has discovered a set element. H is the | |
1125 | entry in the linker hash table for the set. SECTION and VALUE | |
1126 | represent a value which should be added to the set. */ | |
1127 | ||
1a72702b | 1128 | static void |
1579bae1 AM |
1129 | add_to_set (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1130 | struct bfd_link_hash_entry *h, | |
1131 | bfd_reloc_code_real_type reloc, | |
1132 | bfd *abfd, | |
1133 | asection *section, | |
1134 | bfd_vma value) | |
252b5132 RH |
1135 | { |
1136 | if (config.warn_constructors) | |
1137 | einfo (_("%P: warning: global constructor %s used\n"), | |
1138 | h->root.string); | |
1139 | ||
0aa7f586 | 1140 | if (!config.build_constructors) |
1a72702b | 1141 | return; |
252b5132 | 1142 | |
1579bae1 | 1143 | ldctor_add_set_entry (h, reloc, NULL, section, value); |
252b5132 RH |
1144 | |
1145 | if (h->type == bfd_link_hash_new) | |
1146 | { | |
1147 | h->type = bfd_link_hash_undefined; | |
1148 | h->u.undef.abfd = abfd; | |
1149 | /* We don't call bfd_link_add_undef to add this to the list of | |
1150 | undefined symbols because we are going to define it | |
1151 | ourselves. */ | |
1152 | } | |
252b5132 RH |
1153 | } |
1154 | ||
1155 | /* This is called when BFD has discovered a constructor. This is only | |
1156 | called for some object file formats--those which do not handle | |
1157 | constructors in some more clever fashion. This is similar to | |
1158 | adding an element to a set, but less general. */ | |
1159 | ||
1a72702b | 1160 | static void |
1579bae1 AM |
1161 | constructor_callback (struct bfd_link_info *info, |
1162 | bfd_boolean constructor, | |
1163 | const char *name, | |
1164 | bfd *abfd, | |
1165 | asection *section, | |
1166 | bfd_vma value) | |
252b5132 RH |
1167 | { |
1168 | char *s; | |
1169 | struct bfd_link_hash_entry *h; | |
1170 | char set_name[1 + sizeof "__CTOR_LIST__"]; | |
1171 | ||
1172 | if (config.warn_constructors) | |
1173 | einfo (_("%P: warning: global constructor %s used\n"), name); | |
1174 | ||
0aa7f586 | 1175 | if (!config.build_constructors) |
1a72702b | 1176 | return; |
252b5132 RH |
1177 | |
1178 | /* Ensure that BFD_RELOC_CTOR exists now, so that we can give a | |
1179 | useful error message. */ | |
0e86e20e | 1180 | if (bfd_reloc_type_lookup (info->output_bfd, BFD_RELOC_CTOR) == NULL |
0e1862bb | 1181 | && (bfd_link_relocatable (info) |
252b5132 | 1182 | || bfd_reloc_type_lookup (abfd, BFD_RELOC_CTOR) == NULL)) |
df5f2391 | 1183 | einfo (_("%F%P: BFD backend error: BFD_RELOC_CTOR unsupported\n")); |
252b5132 RH |
1184 | |
1185 | s = set_name; | |
1186 | if (bfd_get_symbol_leading_char (abfd) != '\0') | |
1187 | *s++ = bfd_get_symbol_leading_char (abfd); | |
1188 | if (constructor) | |
1189 | strcpy (s, "__CTOR_LIST__"); | |
1190 | else | |
1191 | strcpy (s, "__DTOR_LIST__"); | |
1192 | ||
b34976b6 | 1193 | h = bfd_link_hash_lookup (info->hash, set_name, TRUE, TRUE, TRUE); |
252b5132 | 1194 | if (h == (struct bfd_link_hash_entry *) NULL) |
df5f2391 | 1195 | einfo (_("%F%P: bfd_link_hash_lookup failed: %E\n")); |
252b5132 RH |
1196 | if (h->type == bfd_link_hash_new) |
1197 | { | |
1198 | h->type = bfd_link_hash_undefined; | |
1199 | h->u.undef.abfd = abfd; | |
1200 | /* We don't call bfd_link_add_undef to add this to the list of | |
1201 | undefined symbols because we are going to define it | |
1202 | ourselves. */ | |
1203 | } | |
1204 | ||
1205 | ldctor_add_set_entry (h, BFD_RELOC_CTOR, name, section, value); | |
252b5132 RH |
1206 | } |
1207 | ||
1208 | /* A structure used by warning_callback to pass information through | |
1209 | bfd_map_over_sections. */ | |
1210 | ||
0125cdf2 NC |
1211 | struct warning_callback_info |
1212 | { | |
b34976b6 | 1213 | bfd_boolean found; |
252b5132 RH |
1214 | const char *warning; |
1215 | const char *symbol; | |
1216 | asymbol **asymbols; | |
1217 | }; | |
1218 | ||
4c6d802e L |
1219 | /* Look through the relocs to see if we can find a plausible address |
1220 | for SYMBOL in ABFD. Return TRUE if found. Otherwise return FALSE. */ | |
1221 | ||
1222 | static bfd_boolean | |
1223 | symbol_warning (const char *warning, const char *symbol, bfd *abfd) | |
1224 | { | |
1225 | struct warning_callback_info cinfo; | |
1226 | ||
1227 | if (!bfd_generic_link_read_symbols (abfd)) | |
df5f2391 | 1228 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), abfd); |
4c6d802e L |
1229 | |
1230 | cinfo.found = FALSE; | |
1231 | cinfo.warning = warning; | |
1232 | cinfo.symbol = symbol; | |
1233 | cinfo.asymbols = bfd_get_outsymbols (abfd); | |
1234 | bfd_map_over_sections (abfd, warning_find_reloc, &cinfo); | |
1235 | return cinfo.found; | |
1236 | } | |
1237 | ||
252b5132 RH |
1238 | /* This is called when there is a reference to a warning symbol. */ |
1239 | ||
1a72702b | 1240 | static void |
1579bae1 AM |
1241 | warning_callback (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1242 | const char *warning, | |
1243 | const char *symbol, | |
1244 | bfd *abfd, | |
1245 | asection *section, | |
1246 | bfd_vma address) | |
252b5132 RH |
1247 | { |
1248 | /* This is a hack to support warn_multiple_gp. FIXME: This should | |
1249 | have a cleaner interface, but what? */ | |
0aa7f586 | 1250 | if (!config.warn_multiple_gp |
252b5132 | 1251 | && strcmp (warning, "using multiple gp values") == 0) |
1a72702b | 1252 | return; |
252b5132 RH |
1253 | |
1254 | if (section != NULL) | |
df5f2391 | 1255 | einfo ("%P: %C: %s%s\n", abfd, section, address, _("warning: "), warning); |
252b5132 | 1256 | else if (abfd == NULL) |
300475fe | 1257 | einfo ("%P: %s%s\n", _("warning: "), warning); |
252b5132 | 1258 | else if (symbol == NULL) |
df5f2391 | 1259 | einfo ("%P: %pB: %s%s\n", abfd, _("warning: "), warning); |
0aa7f586 | 1260 | else if (!symbol_warning (warning, symbol, abfd)) |
252b5132 | 1261 | { |
4c6d802e L |
1262 | bfd *b; |
1263 | /* Search all input files for a reference to SYMBOL. */ | |
c72f2fb2 | 1264 | for (b = info->input_bfds; b; b = b->link.next) |
4c6d802e | 1265 | if (b != abfd && symbol_warning (warning, symbol, b)) |
1a72702b | 1266 | return; |
df5f2391 | 1267 | einfo ("%P: %pB: %s%s\n", abfd, _("warning: "), warning); |
252b5132 | 1268 | } |
252b5132 RH |
1269 | } |
1270 | ||
1271 | /* This is called by warning_callback for each section. It checks the | |
1272 | relocs of the section to see if it can find a reference to the | |
1273 | symbol which triggered the warning. If it can, it uses the reloc | |
1274 | to give an error message with a file and line number. */ | |
1275 | ||
1276 | static void | |
1579bae1 | 1277 | warning_find_reloc (bfd *abfd, asection *sec, void *iarg) |
252b5132 | 1278 | { |
1e9cc1c2 | 1279 | struct warning_callback_info *info = (struct warning_callback_info *) iarg; |
252b5132 RH |
1280 | long relsize; |
1281 | arelent **relpp; | |
1282 | long relcount; | |
1283 | arelent **p, **pend; | |
1284 | ||
1285 | if (info->found) | |
1286 | return; | |
1287 | ||
1288 | relsize = bfd_get_reloc_upper_bound (abfd, sec); | |
1289 | if (relsize < 0) | |
df5f2391 | 1290 | einfo (_("%F%P: %pB: could not read relocs: %E\n"), abfd); |
252b5132 RH |
1291 | if (relsize == 0) |
1292 | return; | |
1293 | ||
1e9cc1c2 | 1294 | relpp = (arelent **) xmalloc (relsize); |
252b5132 RH |
1295 | relcount = bfd_canonicalize_reloc (abfd, sec, relpp, info->asymbols); |
1296 | if (relcount < 0) | |
df5f2391 | 1297 | einfo (_("%F%P: %pB: could not read relocs: %E\n"), abfd); |
252b5132 RH |
1298 | |
1299 | p = relpp; | |
1300 | pend = p + relcount; | |
1301 | for (; p < pend && *p != NULL; p++) | |
1302 | { | |
1303 | arelent *q = *p; | |
1304 | ||
1305 | if (q->sym_ptr_ptr != NULL | |
1306 | && *q->sym_ptr_ptr != NULL | |
1307 | && strcmp (bfd_asymbol_name (*q->sym_ptr_ptr), info->symbol) == 0) | |
1308 | { | |
1309 | /* We found a reloc for the symbol we are looking for. */ | |
df5f2391 | 1310 | einfo ("%P: %C: %s%s\n", abfd, sec, q->address, _("warning: "), |
300475fe | 1311 | info->warning); |
b34976b6 | 1312 | info->found = TRUE; |
252b5132 RH |
1313 | break; |
1314 | } | |
1315 | } | |
1316 | ||
1317 | free (relpp); | |
1318 | } | |
1319 | ||
1320 | /* This is called when an undefined symbol is found. */ | |
1321 | ||
1a72702b | 1322 | static void |
0e86e20e | 1323 | undefined_symbol (struct bfd_link_info *info, |
1579bae1 AM |
1324 | const char *name, |
1325 | bfd *abfd, | |
1326 | asection *section, | |
1327 | bfd_vma address, | |
0b28295d | 1328 | bfd_boolean error) |
252b5132 RH |
1329 | { |
1330 | static char *error_name; | |
1331 | static unsigned int error_count; | |
1332 | ||
1333 | #define MAX_ERRORS_IN_A_ROW 5 | |
1334 | ||
0e86e20e AM |
1335 | if (info->ignore_hash != NULL |
1336 | && bfd_hash_lookup (info->ignore_hash, name, FALSE, FALSE) != NULL) | |
1a72702b | 1337 | return; |
0e86e20e | 1338 | |
252b5132 RH |
1339 | if (config.warn_once) |
1340 | { | |
252b5132 | 1341 | /* Only warn once about a particular undefined symbol. */ |
0e86e20e | 1342 | add_ignoresym (info, name); |
252b5132 RH |
1343 | } |
1344 | ||
1345 | /* We never print more than a reasonable number of errors in a row | |
1346 | for a single symbol. */ | |
1579bae1 | 1347 | if (error_name != NULL |
252b5132 RH |
1348 | && strcmp (name, error_name) == 0) |
1349 | ++error_count; | |
1350 | else | |
1351 | { | |
1352 | error_count = 0; | |
5e2ab612 | 1353 | free (error_name); |
d1b2b2dc | 1354 | error_name = xstrdup (name); |
252b5132 RH |
1355 | } |
1356 | ||
1357 | if (section != NULL) | |
1358 | { | |
1359 | if (error_count < MAX_ERRORS_IN_A_ROW) | |
b6f29aaa | 1360 | { |
0b28295d | 1361 | if (error) |
df5f2391 | 1362 | einfo (_("%X%P: %C: undefined reference to `%pT'\n"), |
0b28295d ILT |
1363 | abfd, section, address, name); |
1364 | else | |
df5f2391 | 1365 | einfo (_("%P: %C: warning: undefined reference to `%pT'\n"), |
0b28295d | 1366 | abfd, section, address, name); |
b6f29aaa | 1367 | } |
252b5132 | 1368 | else if (error_count == MAX_ERRORS_IN_A_ROW) |
0b28295d ILT |
1369 | { |
1370 | if (error) | |
df5f2391 | 1371 | einfo (_("%X%P: %D: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1372 | abfd, section, address, name); |
1373 | else | |
df5f2391 | 1374 | einfo (_("%P: %D: warning: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1375 | abfd, section, address, name); |
1376 | } | |
1377 | else if (error) | |
1378 | einfo ("%X"); | |
252b5132 RH |
1379 | } |
1380 | else | |
1381 | { | |
1382 | if (error_count < MAX_ERRORS_IN_A_ROW) | |
b6f29aaa | 1383 | { |
0b28295d | 1384 | if (error) |
df5f2391 | 1385 | einfo (_("%X%P: %pB: undefined reference to `%pT'\n"), |
0b28295d ILT |
1386 | abfd, name); |
1387 | else | |
df5f2391 | 1388 | einfo (_("%P: %pB: warning: undefined reference to `%pT'\n"), |
0b28295d | 1389 | abfd, name); |
b6f29aaa | 1390 | } |
252b5132 | 1391 | else if (error_count == MAX_ERRORS_IN_A_ROW) |
0b28295d ILT |
1392 | { |
1393 | if (error) | |
df5f2391 | 1394 | einfo (_("%X%P: %pB: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1395 | abfd, name); |
1396 | else | |
df5f2391 | 1397 | einfo (_("%P: %pB: warning: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1398 | abfd, name); |
1399 | } | |
1400 | else if (error) | |
1401 | einfo ("%X"); | |
252b5132 | 1402 | } |
252b5132 RH |
1403 | } |
1404 | ||
8aae64e6 AO |
1405 | /* Counter to limit the number of relocation overflow error messages |
1406 | to print. Errors are printed as it is decremented. When it's | |
1407 | called and the counter is zero, a final message is printed | |
1408 | indicating more relocations were omitted. When it gets to -1, no | |
1409 | such errors are printed. If it's initially set to a value less | |
1410 | than -1, all such errors will be printed (--verbose does this). */ | |
1411 | ||
1412 | int overflow_cutoff_limit = 10; | |
1413 | ||
252b5132 RH |
1414 | /* This is called when a reloc overflows. */ |
1415 | ||
1a72702b | 1416 | static void |
0e86e20e | 1417 | reloc_overflow (struct bfd_link_info *info, |
dfeffb9f | 1418 | struct bfd_link_hash_entry *entry, |
1579bae1 AM |
1419 | const char *name, |
1420 | const char *reloc_name, | |
1421 | bfd_vma addend, | |
1422 | bfd *abfd, | |
1423 | asection *section, | |
1424 | bfd_vma address) | |
252b5132 | 1425 | { |
8aae64e6 | 1426 | if (overflow_cutoff_limit == -1) |
1a72702b | 1427 | return; |
8aae64e6 | 1428 | |
a5990ada | 1429 | einfo ("%X%H:", abfd, section, address); |
8aae64e6 AO |
1430 | |
1431 | if (overflow_cutoff_limit >= 0 | |
1432 | && overflow_cutoff_limit-- == 0) | |
1433 | { | |
1434 | einfo (_(" additional relocation overflows omitted from the output\n")); | |
1a72702b | 1435 | return; |
8aae64e6 AO |
1436 | } |
1437 | ||
dfeffb9f L |
1438 | if (entry) |
1439 | { | |
1440 | while (entry->type == bfd_link_hash_indirect | |
1441 | || entry->type == bfd_link_hash_warning) | |
1442 | entry = entry->u.i.link; | |
1443 | switch (entry->type) | |
1444 | { | |
1445 | case bfd_link_hash_undefined: | |
1446 | case bfd_link_hash_undefweak: | |
0aa7f586 | 1447 | einfo (_(" relocation truncated to fit: " |
c1c8c1ef | 1448 | "%s against undefined symbol `%pT'"), |
dfeffb9f L |
1449 | reloc_name, entry->root.string); |
1450 | break; | |
1451 | case bfd_link_hash_defined: | |
1452 | case bfd_link_hash_defweak: | |
0aa7f586 | 1453 | einfo (_(" relocation truncated to fit: " |
c1c8c1ef | 1454 | "%s against symbol `%pT' defined in %pA section in %pB"), |
dfeffb9f | 1455 | reloc_name, entry->root.string, |
a6e1b90f L |
1456 | entry->u.def.section, |
1457 | entry->u.def.section == bfd_abs_section_ptr | |
0e86e20e | 1458 | ? info->output_bfd : entry->u.def.section->owner); |
dfeffb9f L |
1459 | break; |
1460 | default: | |
1461 | abort (); | |
1462 | break; | |
1463 | } | |
1464 | } | |
1465 | else | |
c1c8c1ef | 1466 | einfo (_(" relocation truncated to fit: %s against `%pT'"), |
dfeffb9f | 1467 | reloc_name, name); |
252b5132 RH |
1468 | if (addend != 0) |
1469 | einfo ("+%v", addend); | |
1470 | einfo ("\n"); | |
252b5132 RH |
1471 | } |
1472 | ||
1473 | /* This is called when a dangerous relocation is made. */ | |
1474 | ||
1a72702b | 1475 | static void |
1579bae1 AM |
1476 | reloc_dangerous (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1477 | const char *message, | |
1478 | bfd *abfd, | |
1479 | asection *section, | |
1480 | bfd_vma address) | |
252b5132 | 1481 | { |
a5990ada | 1482 | einfo (_("%X%H: dangerous relocation: %s\n"), |
e1fffbe6 | 1483 | abfd, section, address, message); |
252b5132 RH |
1484 | } |
1485 | ||
1486 | /* This is called when a reloc is being generated attached to a symbol | |
1487 | that is not being output. */ | |
1488 | ||
1a72702b | 1489 | static void |
1579bae1 AM |
1490 | unattached_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1491 | const char *name, | |
1492 | bfd *abfd, | |
1493 | asection *section, | |
1494 | bfd_vma address) | |
252b5132 | 1495 | { |
a5990ada | 1496 | einfo (_("%X%H: reloc refers to symbol `%pT' which is not being output\n"), |
e1fffbe6 | 1497 | abfd, section, address, name); |
252b5132 RH |
1498 | } |
1499 | ||
1500 | /* This is called if link_info.notice_all is set, or when a symbol in | |
1501 | link_info.notice_hash is found. Symbols are put in notice_hash | |
5d3236ee DK |
1502 | using the -y option, while notice_all is set if the --cref option |
1503 | has been supplied, or if there are any NOCROSSREFS sections in the | |
1504 | linker script; and if plugins are active, since they need to monitor | |
1505 | all references from non-IR files. */ | |
252b5132 | 1506 | |
b34976b6 | 1507 | static bfd_boolean |
1579bae1 | 1508 | notice (struct bfd_link_info *info, |
35ed3f94 | 1509 | struct bfd_link_hash_entry *h, |
46135103 | 1510 | struct bfd_link_hash_entry *inh ATTRIBUTE_UNUSED, |
1579bae1 AM |
1511 | bfd *abfd, |
1512 | asection *section, | |
16d96b5b | 1513 | bfd_vma value, |
46135103 | 1514 | flagword flags ATTRIBUTE_UNUSED) |
252b5132 | 1515 | { |
35ed3f94 AM |
1516 | const char *name; |
1517 | ||
1518 | if (h == NULL) | |
5061a885 AM |
1519 | { |
1520 | if (command_line.cref || nocrossref_list != NULL) | |
1e9cc1c2 | 1521 | return handle_asneeded_cref (abfd, (enum notice_asneeded_action) value); |
5061a885 AM |
1522 | return TRUE; |
1523 | } | |
1524 | ||
35ed3f94 | 1525 | name = h->root.string; |
5d3236ee | 1526 | if (info->notice_hash != NULL |
9e2278f5 | 1527 | && bfd_hash_lookup (info->notice_hash, name, FALSE, FALSE) != NULL) |
252b5132 RH |
1528 | { |
1529 | if (bfd_is_und_section (section)) | |
df5f2391 | 1530 | einfo (_("%P: %pB: reference to %s\n"), abfd, name); |
252b5132 | 1531 | else |
df5f2391 | 1532 | einfo (_("%P: %pB: definition of %s\n"), abfd, name); |
252b5132 RH |
1533 | } |
1534 | ||
1535 | if (command_line.cref || nocrossref_list != NULL) | |
1536 | add_cref (name, abfd, section, value); | |
1537 | ||
b34976b6 | 1538 | return TRUE; |
252b5132 | 1539 | } |