Commit | Line | Data |
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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" |
cae64165 | 30 | #include "elf/common.h" |
252b5132 RH |
31 | |
32 | #include "ld.h" | |
33 | #include "ldmain.h" | |
34 | #include "ldmisc.h" | |
35 | #include "ldwrite.h" | |
252b5132 RH |
36 | #include "ldexp.h" |
37 | #include "ldlang.h" | |
df2a7313 | 38 | #include <ldgram.h> |
252b5132 RH |
39 | #include "ldlex.h" |
40 | #include "ldfile.h" | |
b71e2778 | 41 | #include "ldemul.h" |
252b5132 | 42 | #include "ldctor.h" |
0381901e | 43 | #if BFD_SUPPORTS_PLUGINS |
5d3236ee DK |
44 | #include "plugin.h" |
45 | #include "plugin-api.h" | |
0381901e | 46 | #endif /* BFD_SUPPORTS_PLUGINS */ |
252b5132 | 47 | |
0125cdf2 | 48 | /* Somewhere above, sys/stat.h got included. */ |
252b5132 RH |
49 | #if !defined(S_ISDIR) && defined(S_IFDIR) |
50 | #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) | |
51 | #endif | |
52 | ||
53 | #include <string.h> | |
54 | ||
9c8ebd6a DJ |
55 | #ifndef TARGET_SYSTEM_ROOT |
56 | #define TARGET_SYSTEM_ROOT "" | |
57 | #endif | |
58 | ||
252b5132 RH |
59 | /* EXPORTS */ |
60 | ||
53d25da6 AM |
61 | FILE *saved_script_handle = NULL; |
62 | FILE *previous_script_handle = NULL; | |
63 | bfd_boolean force_make_executable = FALSE; | |
64 | ||
252b5132 RH |
65 | char *default_target; |
66 | const char *output_filename = "a.out"; | |
67 | ||
68 | /* Name this program was invoked by. */ | |
69 | char *program_name; | |
70 | ||
9c8ebd6a | 71 | /* The prefix for system library directories. */ |
e2243057 | 72 | const char *ld_sysroot; |
9c8ebd6a | 73 | |
3fe38064 | 74 | /* The canonical representation of ld_sysroot. */ |
0aa7f586 | 75 | char *ld_canon_sysroot; |
3fe38064 NC |
76 | int ld_canon_sysroot_len; |
77 | ||
e8044f35 | 78 | /* Set by -G argument, for targets like MIPS ELF. */ |
252b5132 RH |
79 | int g_switch_value = 8; |
80 | ||
81 | /* Nonzero means print names of input files as processed. */ | |
727a29ba | 82 | unsigned int trace_files; |
252b5132 | 83 | |
cd6f1cf3 NC |
84 | /* Nonzero means report actions taken by the linker, and describe the linker script in use. */ |
85 | bfd_boolean verbose; | |
252b5132 RH |
86 | |
87 | /* Nonzero means version number was printed, so exit successfully | |
88 | instead of complaining if no input files are given. */ | |
b34976b6 | 89 | bfd_boolean version_printed; |
252b5132 | 90 | |
b34976b6 AM |
91 | /* TRUE if we should demangle symbol names. */ |
92 | bfd_boolean demangling; | |
252b5132 RH |
93 | |
94 | args_type command_line; | |
95 | ||
96 | ld_config_type config; | |
97 | ||
bcaa7b3e L |
98 | sort_type sort_section; |
99 | ||
e2243057 RS |
100 | static const char *get_sysroot |
101 | (int, char **); | |
0125cdf2 | 102 | static char *get_emulation |
1579bae1 | 103 | (int, char **); |
0125cdf2 | 104 | static bfd_boolean add_archive_element |
5d3236ee | 105 | (struct bfd_link_info *, bfd *, const char *, bfd **); |
1a72702b | 106 | static void multiple_definition |
24f58f47 | 107 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
1579bae1 | 108 | bfd *, asection *, bfd_vma); |
1a72702b | 109 | static void multiple_common |
24f58f47 AM |
110 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
111 | bfd *, enum bfd_link_hash_type, bfd_vma); | |
1a72702b | 112 | static void add_to_set |
1579bae1 AM |
113 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
114 | bfd_reloc_code_real_type, bfd *, asection *, bfd_vma); | |
1a72702b | 115 | static void constructor_callback |
1579bae1 AM |
116 | (struct bfd_link_info *, bfd_boolean, const char *, bfd *, |
117 | asection *, bfd_vma); | |
1a72702b | 118 | static void warning_callback |
1579bae1 AM |
119 | (struct bfd_link_info *, const char *, const char *, bfd *, |
120 | asection *, bfd_vma); | |
0125cdf2 | 121 | static void warning_find_reloc |
1579bae1 | 122 | (bfd *, asection *, void *); |
1a72702b | 123 | static void undefined_symbol |
1579bae1 AM |
124 | (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma, |
125 | bfd_boolean); | |
1a72702b | 126 | static void reloc_overflow |
dfeffb9f L |
127 | (struct bfd_link_info *, struct bfd_link_hash_entry *, const char *, |
128 | const char *, bfd_vma, bfd *, asection *, bfd_vma); | |
1a72702b | 129 | static void reloc_dangerous |
1579bae1 | 130 | (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma); |
1a72702b | 131 | static void unattached_reloc |
1579bae1 | 132 | (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma); |
0125cdf2 | 133 | static bfd_boolean notice |
35ed3f94 | 134 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
46135103 | 135 | struct bfd_link_hash_entry *, bfd *, asection *, bfd_vma, flagword); |
0125cdf2 NC |
136 | |
137 | static struct bfd_link_callbacks link_callbacks = | |
138 | { | |
252b5132 RH |
139 | add_archive_element, |
140 | multiple_definition, | |
141 | multiple_common, | |
142 | add_to_set, | |
143 | constructor_callback, | |
144 | warning_callback, | |
145 | undefined_symbol, | |
146 | reloc_overflow, | |
147 | reloc_dangerous, | |
148 | unattached_reloc, | |
e1fffbe6 | 149 | notice, |
2889e75b | 150 | einfo, |
49fa1e15 AM |
151 | info_msg, |
152 | minfo, | |
1ff6de03 NA |
153 | ldlang_override_segment_assignment, |
154 | ldlang_ctf_apply_strsym, | |
155 | ldlang_write_ctf_late | |
252b5132 RH |
156 | }; |
157 | ||
3b66a141 | 158 | static bfd_assert_handler_type default_bfd_assert_handler; |
4519d071 | 159 | static bfd_error_handler_type default_bfd_error_handler; |
3b66a141 | 160 | |
252b5132 RH |
161 | struct bfd_link_info link_info; |
162 | \f | |
163 | static void | |
498cd2a0 | 164 | ld_cleanup (void) |
252b5132 | 165 | { |
498cd2a0 | 166 | bfd_cache_close_all (); |
0381901e | 167 | #if BFD_SUPPORTS_PLUGINS |
498cd2a0 AM |
168 | plugin_call_cleanup (); |
169 | #endif | |
170 | if (output_filename && delete_output_file_on_failure) | |
171 | unlink_if_ordinary (output_filename); | |
252b5132 RH |
172 | } |
173 | ||
4519d071 | 174 | /* Hook to notice BFD assertions. */ |
3b66a141 HPN |
175 | |
176 | static void | |
177 | ld_bfd_assert_handler (const char *fmt, const char *bfdver, | |
178 | const char *file, int line) | |
179 | { | |
3b66a141 | 180 | config.make_executable = FALSE; |
4519d071 AM |
181 | (*default_bfd_assert_handler) (fmt, bfdver, file, line); |
182 | } | |
183 | ||
184 | /* Hook the bfd error/warning handler for --fatal-warnings. */ | |
185 | ||
186 | static void | |
187 | ld_bfd_error_handler (const char *fmt, va_list ap) | |
188 | { | |
189 | if (config.fatal_warnings) | |
190 | config.make_executable = FALSE; | |
191 | (*default_bfd_error_handler) (fmt, ap); | |
3b66a141 HPN |
192 | } |
193 | ||
252b5132 | 194 | int |
1579bae1 | 195 | main (int argc, char **argv) |
252b5132 RH |
196 | { |
197 | char *emulation; | |
198 | long start_time = get_run_time (); | |
199 | ||
200 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) | |
201 | setlocale (LC_MESSAGES, ""); | |
3882b010 L |
202 | #endif |
203 | #if defined (HAVE_SETLOCALE) | |
204 | setlocale (LC_CTYPE, ""); | |
252b5132 RH |
205 | #endif |
206 | bindtextdomain (PACKAGE, LOCALEDIR); | |
207 | textdomain (PACKAGE); | |
208 | ||
209 | program_name = argv[0]; | |
210 | xmalloc_set_program_name (program_name); | |
211 | ||
212 | START_PROGRESS (program_name, 0); | |
213 | ||
869b9d07 MM |
214 | expandargv (&argc, &argv); |
215 | ||
bf2dd8d7 AM |
216 | if (bfd_init () != BFD_INIT_MAGIC) |
217 | einfo (_("%F%P: fatal error: libbfd ABI mismatch\n")); | |
252b5132 RH |
218 | |
219 | bfd_set_error_program_name (program_name); | |
220 | ||
3b66a141 HPN |
221 | /* We want to notice and fail on those nasty BFD assertions which are |
222 | likely to signal incorrect output being generated but otherwise may | |
223 | leave no trace. */ | |
224 | default_bfd_assert_handler = bfd_set_assert_handler (ld_bfd_assert_handler); | |
225 | ||
4519d071 AM |
226 | /* Also hook the bfd error/warning handler for --fatal-warnings. */ |
227 | default_bfd_error_handler = bfd_set_error_handler (ld_bfd_error_handler); | |
228 | ||
498cd2a0 | 229 | xatexit (ld_cleanup); |
252b5132 | 230 | |
e2243057 RS |
231 | /* Set up the sysroot directory. */ |
232 | ld_sysroot = get_sysroot (argc, argv); | |
233 | if (*ld_sysroot) | |
3074964f | 234 | ld_canon_sysroot = lrealpath (ld_sysroot); |
3fe38064 | 235 | if (ld_canon_sysroot) |
889be5db DR |
236 | { |
237 | ld_canon_sysroot_len = strlen (ld_canon_sysroot); | |
238 | ||
239 | /* is_sysrooted_pathname() relies on no trailing dirsep. */ | |
240 | if (ld_canon_sysroot_len > 0 | |
241 | && IS_DIR_SEPARATOR (ld_canon_sysroot [ld_canon_sysroot_len - 1])) | |
242 | ld_canon_sysroot [--ld_canon_sysroot_len] = '\0'; | |
243 | } | |
3fe38064 NC |
244 | else |
245 | ld_canon_sysroot_len = -1; | |
246 | ||
252b5132 RH |
247 | /* Set the default BFD target based on the configured target. Doing |
248 | this permits the linker to be configured for a particular target, | |
249 | and linked against a shared BFD library which was configured for | |
250 | a different target. The macro TARGET is defined by Makefile. */ | |
0aa7f586 | 251 | if (!bfd_set_default_target (TARGET)) |
252b5132 RH |
252 | { |
253 | einfo (_("%X%P: can't set BFD default target to `%s': %E\n"), TARGET); | |
254 | xexit (1); | |
255 | } | |
256 | ||
b47c4208 AM |
257 | #if YYDEBUG |
258 | { | |
259 | extern int yydebug; | |
260 | yydebug = 1; | |
261 | } | |
262 | #endif | |
263 | ||
b34976b6 | 264 | config.build_constructors = TRUE; |
c76308d2 | 265 | config.rpath_separator = ':'; |
a854a4a7 AM |
266 | config.split_by_reloc = (unsigned) -1; |
267 | config.split_by_file = (bfd_size_type) -1; | |
3b95049e AM |
268 | config.make_executable = TRUE; |
269 | config.magic_demand_paged = TRUE; | |
270 | config.text_read_only = TRUE; | |
035801ce | 271 | config.print_map_discarded = TRUE; |
4f9d22a0 | 272 | link_info.disable_target_specific_optimizations = -1; |
3b95049e | 273 | |
b34976b6 | 274 | command_line.warn_mismatch = TRUE; |
fe7929ce | 275 | command_line.warn_search_mismatch = TRUE; |
02b0b1aa | 276 | command_line.check_section_addresses = -1; |
bcaa7b3e | 277 | |
252b5132 RH |
278 | /* We initialize DEMANGLING based on the environment variable |
279 | COLLECT_NO_DEMANGLE. The gcc collect2 program will demangle the | |
280 | output of the linker, unless COLLECT_NO_DEMANGLE is set in the | |
281 | environment. Acting the same way here lets us provide the same | |
282 | interface by default. */ | |
283 | demangling = getenv ("COLLECT_NO_DEMANGLE") == NULL; | |
284 | ||
b34976b6 | 285 | link_info.allow_undefined_version = TRUE; |
b5067602 | 286 | link_info.keep_memory = TRUE; |
b5067602 | 287 | link_info.combreloc = TRUE; |
d5cd3933 | 288 | link_info.strip_discarded = TRUE; |
3f0a5f17 | 289 | link_info.prohibit_multiple_definition_absolute = FALSE; |
b32632c4 | 290 | link_info.textrel_check = DEFAULT_LD_TEXTREL_CHECK; |
2760f24c RG |
291 | link_info.emit_hash = DEFAULT_EMIT_SYSV_HASH; |
292 | link_info.emit_gnu_hash = DEFAULT_EMIT_GNU_HASH; | |
a9a4c53e AM |
293 | link_info.callbacks = &link_callbacks; |
294 | link_info.input_bfds_tail = &link_info.input_bfds; | |
3dbf70a2 MM |
295 | /* SVR4 linkers seem to set DT_INIT and DT_FINI based on magic _init |
296 | and _fini symbols. We are compatible. */ | |
297 | link_info.init_function = "_init"; | |
298 | link_info.fini_function = "_fini"; | |
a9a4c53e | 299 | link_info.relax_pass = 1; |
889c2a67 | 300 | link_info.extern_protected_data = -1; |
aec6b87e | 301 | link_info.dynamic_undefined_weak = -1; |
e0076ab3 | 302 | link_info.pei386_auto_import = -1; |
db6751f2 | 303 | link_info.spare_dynamic_tags = 5; |
967928e9 | 304 | link_info.path_separator = ':'; |
6c3bc0f8 NC |
305 | #ifdef DEFAULT_FLAG_COMPRESS_DEBUG |
306 | link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB; | |
307 | #endif | |
6734f10a | 308 | #ifdef DEFAULT_NEW_DTAGS |
91001320 | 309 | link_info.new_dtags = DEFAULT_NEW_DTAGS; |
6734f10a | 310 | #endif |
cae64165 | 311 | link_info.start_stop_visibility = STV_PROTECTED; |
24718e3b | 312 | |
252b5132 | 313 | ldfile_add_arch (""); |
252b5132 RH |
314 | emulation = get_emulation (argc, argv); |
315 | ldemul_choose_mode (emulation); | |
742aeb63 | 316 | default_target = ldemul_choose_target (argc, argv); |
252b5132 | 317 | lang_init (); |
18d6a79d | 318 | ldexp_init (); |
252b5132 | 319 | ldemul_before_parse (); |
b34976b6 | 320 | lang_has_input_file = FALSE; |
252b5132 RH |
321 | parse_args (argc, argv); |
322 | ||
2d643429 NC |
323 | if (config.hash_table_size != 0) |
324 | bfd_hash_set_default_size (config.hash_table_size); | |
325 | ||
0381901e | 326 | #if BFD_SUPPORTS_PLUGINS |
9bbc1a67 | 327 | /* Now all the plugin arguments have been gathered, we can load them. */ |
d82184d7 | 328 | plugin_load_plugins (); |
0381901e | 329 | #endif /* BFD_SUPPORTS_PLUGINS */ |
36af4a4e | 330 | |
9bbc1a67 | 331 | ldemul_set_symbols (); |
252b5132 | 332 | |
14be8564 L |
333 | /* If we have not already opened and parsed a linker script, |
334 | try the default script from command line first. */ | |
335 | if (saved_script_handle == NULL | |
336 | && command_line.default_script != NULL) | |
337 | { | |
6ec6968b | 338 | ldfile_open_script_file (command_line.default_script); |
14be8564 L |
339 | parser_input = input_script; |
340 | yyparse (); | |
341 | } | |
342 | ||
b9a8de1e NC |
343 | /* If we have not already opened and parsed a linker script |
344 | read the emulation's appropriate default script. */ | |
b90e1c6f | 345 | if (saved_script_handle == NULL) |
252b5132 | 346 | { |
252b5132 | 347 | int isfile; |
b7a26f91 | 348 | char *s = ldemul_get_script (&isfile); |
252b5132 RH |
349 | |
350 | if (isfile) | |
7d24f02c | 351 | ldfile_open_default_command_file (s); |
252b5132 | 352 | else |
b7a26f91 | 353 | { |
252b5132 | 354 | lex_string = s; |
dab69f68 | 355 | lex_redirect (s, _("built in linker script"), 1); |
252b5132 RH |
356 | } |
357 | parser_input = input_script; | |
358 | yyparse (); | |
359 | lex_string = NULL; | |
360 | } | |
361 | ||
cd6f1cf3 | 362 | if (verbose) |
b9a8de1e | 363 | { |
9cb61eab AM |
364 | if (saved_script_handle) |
365 | info_msg (_("using external linker script:")); | |
366 | else | |
367 | info_msg (_("using internal linker script:")); | |
368 | info_msg ("\n==================================================\n"); | |
b9a8de1e NC |
369 | |
370 | if (saved_script_handle) | |
371 | { | |
74699268 | 372 | static const int ld_bufsz = 8193; |
b9a8de1e | 373 | size_t n; |
1e9cc1c2 | 374 | char *buf = (char *) xmalloc (ld_bufsz); |
b9a8de1e NC |
375 | |
376 | rewind (saved_script_handle); | |
74699268 | 377 | while ((n = fread (buf, 1, ld_bufsz - 1, saved_script_handle)) > 0) |
b9a8de1e | 378 | { |
b7a26f91 | 379 | buf[n] = 0; |
f5ac6ab3 | 380 | info_msg ("%s", buf); |
b9a8de1e NC |
381 | } |
382 | rewind (saved_script_handle); | |
383 | free (buf); | |
384 | } | |
385 | else | |
386 | { | |
387 | int isfile; | |
388 | ||
b7a26f91 | 389 | info_msg (ldemul_get_script (&isfile)); |
b9a8de1e | 390 | } |
b7a26f91 | 391 | |
b9a8de1e NC |
392 | info_msg ("\n==================================================\n"); |
393 | } | |
394 | ||
7bdf4127 AB |
395 | if (command_line.force_group_allocation |
396 | || !bfd_link_relocatable (&link_info)) | |
397 | link_info.resolve_section_groups = TRUE; | |
398 | else | |
399 | link_info.resolve_section_groups = FALSE; | |
400 | ||
30824704 RM |
401 | if (command_line.print_output_format) |
402 | info_msg ("%s\n", lang_get_output_target ()); | |
403 | ||
252b5132 RH |
404 | lang_final (); |
405 | ||
61e2488c JT |
406 | /* If the only command line argument has been -v or --version or --verbose |
407 | then ignore any input files provided by linker scripts and exit now. | |
408 | We do not want to create an output file when the linker is just invoked | |
409 | to provide version information. */ | |
410 | if (argc == 2 && version_printed) | |
411 | xexit (0); | |
412 | ||
a4819f54 | 413 | if (link_info.inhibit_common_definition && !bfd_link_dll (&link_info)) |
df5f2391 | 414 | einfo (_("%F%P: --no-define-common may not be used without -shared\n")); |
a4819f54 | 415 | |
b34976b6 | 416 | if (!lang_has_input_file) |
252b5132 | 417 | { |
30824704 | 418 | if (version_printed || command_line.print_output_format) |
252b5132 | 419 | xexit (0); |
df5f2391 | 420 | einfo (_("%F%P: no input files\n")); |
252b5132 RH |
421 | } |
422 | ||
5c87f94b | 423 | if (verbose) |
0125cdf2 | 424 | info_msg (_("%P: mode %s\n"), emulation); |
252b5132 RH |
425 | |
426 | ldemul_after_parse (); | |
427 | ||
252b5132 RH |
428 | if (config.map_filename) |
429 | { | |
430 | if (strcmp (config.map_filename, "-") == 0) | |
431 | { | |
432 | config.map_file = stdout; | |
433 | } | |
434 | else | |
435 | { | |
436 | config.map_file = fopen (config.map_filename, FOPEN_WT); | |
437 | if (config.map_file == (FILE *) NULL) | |
438 | { | |
439 | bfd_set_error (bfd_error_system_call); | |
df5f2391 | 440 | einfo (_("%F%P: cannot open map file %s: %E\n"), |
252b5132 RH |
441 | config.map_filename); |
442 | } | |
443 | } | |
d2ef37eb | 444 | link_info.has_map_file = TRUE; |
252b5132 RH |
445 | } |
446 | ||
252b5132 RH |
447 | lang_process (); |
448 | ||
449 | /* Print error messages for any missing symbols, for any warning | |
6d5e62f8 | 450 | symbols, and possibly multiple definitions. */ |
0e1862bb | 451 | if (bfd_link_relocatable (&link_info)) |
f13a99db | 452 | link_info.output_bfd->flags &= ~EXEC_P; |
252b5132 | 453 | else |
f13a99db | 454 | link_info.output_bfd->flags |= EXEC_P; |
252b5132 | 455 | |
0ce398f1 L |
456 | if ((link_info.compress_debug & COMPRESS_DEBUG)) |
457 | { | |
458 | link_info.output_bfd->flags |= BFD_COMPRESS; | |
459 | if (link_info.compress_debug == COMPRESS_DEBUG_GABI_ZLIB) | |
460 | link_info.output_bfd->flags |= BFD_COMPRESS_GABI; | |
461 | } | |
462 | ||
252b5132 RH |
463 | ldwrite (); |
464 | ||
465 | if (config.map_file != NULL) | |
466 | lang_map (); | |
467 | if (command_line.cref) | |
468 | output_cref (config.map_file != NULL ? config.map_file : stdout); | |
469 | if (nocrossref_list != NULL) | |
470 | check_nocrossrefs (); | |
3604cb1f TG |
471 | if (command_line.print_memory_usage) |
472 | lang_print_memory_usage (); | |
edf84efc NC |
473 | #if 0 |
474 | { | |
0aa7f586 | 475 | struct bfd_link_hash_entry *h; |
252b5132 | 476 | |
edf84efc NC |
477 | h = bfd_link_hash_lookup (link_info.hash, "__image_base__", 0,0,1); |
478 | fprintf (stderr, "lookup = %p val %lx\n", h, h ? h->u.def.value : 1); | |
479 | } | |
480 | #endif | |
18d6a79d | 481 | ldexp_finish (); |
750877ba L |
482 | lang_finish (); |
483 | ||
1049f94e | 484 | /* Even if we're producing relocatable output, some non-fatal errors should |
252b5132 | 485 | be reported in the exit status. (What non-fatal errors, if any, do we |
1049f94e | 486 | want to ignore for relocatable output?) */ |
b34976b6 | 487 | if (!config.make_executable && !force_make_executable) |
252b5132 | 488 | { |
5c87f94b | 489 | if (verbose) |
0125cdf2 NC |
490 | einfo (_("%P: link errors found, deleting executable `%s'\n"), |
491 | output_filename); | |
252b5132 | 492 | |
4309cbf2 | 493 | /* The file will be removed by ld_cleanup. */ |
252b5132 RH |
494 | xexit (1); |
495 | } | |
496 | else | |
497 | { | |
0aa7f586 | 498 | if (!bfd_close (link_info.output_bfd)) |
df5f2391 | 499 | einfo (_("%F%P: %pB: final close failed: %E\n"), link_info.output_bfd); |
252b5132 RH |
500 | |
501 | /* If the --force-exe-suffix is enabled, and we're making an | |
6d5e62f8 KH |
502 | executable file and it doesn't end in .exe, copy it to one |
503 | which does. */ | |
0e1862bb L |
504 | if (!bfd_link_relocatable (&link_info) |
505 | && command_line.force_exe_suffix) | |
252b5132 RH |
506 | { |
507 | int len = strlen (output_filename); | |
0125cdf2 | 508 | |
6d5e62f8 | 509 | if (len < 4 |
252b5132 RH |
510 | || (strcasecmp (output_filename + len - 4, ".exe") != 0 |
511 | && strcasecmp (output_filename + len - 4, ".dll") != 0)) | |
512 | { | |
513 | FILE *src; | |
514 | FILE *dst; | |
515 | const int bsize = 4096; | |
1e9cc1c2 | 516 | char *buf = (char *) xmalloc (bsize); |
252b5132 | 517 | int l; |
1e9cc1c2 | 518 | char *dst_name = (char *) xmalloc (len + 5); |
0125cdf2 | 519 | |
252b5132 RH |
520 | strcpy (dst_name, output_filename); |
521 | strcat (dst_name, ".exe"); | |
522 | src = fopen (output_filename, FOPEN_RB); | |
523 | dst = fopen (dst_name, FOPEN_WB); | |
524 | ||
525 | if (!src) | |
df5f2391 | 526 | einfo (_("%F%P: unable to open for source of copy `%s'\n"), |
1579bae1 | 527 | output_filename); |
252b5132 | 528 | if (!dst) |
df5f2391 | 529 | einfo (_("%F%P: unable to open for destination of copy `%s'\n"), |
1579bae1 | 530 | dst_name); |
252b5132 RH |
531 | while ((l = fread (buf, 1, bsize, src)) > 0) |
532 | { | |
533 | int done = fwrite (buf, 1, l, dst); | |
0125cdf2 | 534 | |
252b5132 | 535 | if (done != l) |
df5f2391 | 536 | einfo (_("%P: error writing file `%s'\n"), dst_name); |
252b5132 | 537 | } |
0125cdf2 | 538 | |
252b5132 RH |
539 | fclose (src); |
540 | if (fclose (dst) == EOF) | |
df5f2391 | 541 | einfo (_("%P: error closing file `%s'\n"), dst_name); |
252b5132 RH |
542 | free (dst_name); |
543 | free (buf); | |
544 | } | |
545 | } | |
546 | } | |
547 | ||
548 | END_PROGRESS (program_name); | |
549 | ||
550 | if (config.stats) | |
551 | { | |
252b5132 RH |
552 | long run_time = get_run_time () - start_time; |
553 | ||
e922bcab | 554 | fflush (stdout); |
252b5132 RH |
555 | fprintf (stderr, _("%s: total time in link: %ld.%06ld\n"), |
556 | program_name, run_time / 1000000, run_time % 1000000); | |
e922bcab | 557 | fflush (stderr); |
252b5132 RH |
558 | } |
559 | ||
4309cbf2 | 560 | /* Prevent ld_cleanup from doing anything, after a successful link. */ |
252b5132 RH |
561 | output_filename = NULL; |
562 | ||
563 | xexit (0); | |
564 | return 0; | |
565 | } | |
566 | ||
e2243057 RS |
567 | /* If the configured sysroot is relocatable, try relocating it based on |
568 | default prefix FROM. Return the relocated directory if it exists, | |
569 | otherwise return null. */ | |
570 | ||
571 | static char * | |
572 | get_relative_sysroot (const char *from ATTRIBUTE_UNUSED) | |
573 | { | |
574 | #ifdef TARGET_SYSTEM_ROOT_RELOCATABLE | |
575 | char *path; | |
576 | struct stat s; | |
577 | ||
578 | path = make_relative_prefix (program_name, from, TARGET_SYSTEM_ROOT); | |
579 | if (path) | |
580 | { | |
581 | if (stat (path, &s) == 0 && S_ISDIR (s.st_mode)) | |
582 | return path; | |
583 | free (path); | |
584 | } | |
585 | #endif | |
586 | return 0; | |
587 | } | |
588 | ||
589 | /* Return the sysroot directory. Return "" if no sysroot is being used. */ | |
590 | ||
591 | static const char * | |
592 | get_sysroot (int argc, char **argv) | |
593 | { | |
594 | int i; | |
55d5520a | 595 | const char *path = NULL; |
e2243057 RS |
596 | |
597 | for (i = 1; i < argc; i++) | |
0112cd26 | 598 | if (CONST_STRNEQ (argv[i], "--sysroot=")) |
55d5520a | 599 | path = argv[i] + strlen ("--sysroot="); |
e2243057 | 600 | |
55d5520a AM |
601 | if (!path) |
602 | path = get_relative_sysroot (BINDIR); | |
e2243057 | 603 | |
55d5520a AM |
604 | if (!path) |
605 | path = get_relative_sysroot (TOOLBINDIR); | |
606 | ||
607 | if (!path) | |
608 | path = TARGET_SYSTEM_ROOT; | |
609 | ||
610 | if (IS_DIR_SEPARATOR (*path) && path[1] == 0) | |
611 | path = ""; | |
e2243057 | 612 | |
55d5520a | 613 | return path; |
e2243057 RS |
614 | } |
615 | ||
252b5132 RH |
616 | /* We need to find any explicitly given emulation in order to initialize the |
617 | state that's needed by the lex&yacc argument parser (parse_args). */ | |
618 | ||
619 | static char * | |
1579bae1 | 620 | get_emulation (int argc, char **argv) |
252b5132 RH |
621 | { |
622 | char *emulation; | |
623 | int i; | |
624 | ||
625 | emulation = getenv (EMULATION_ENVIRON); | |
626 | if (emulation == NULL) | |
627 | emulation = DEFAULT_EMULATION; | |
628 | ||
629 | for (i = 1; i < argc; i++) | |
630 | { | |
0112cd26 | 631 | if (CONST_STRNEQ (argv[i], "-m")) |
252b5132 RH |
632 | { |
633 | if (argv[i][2] == '\0') | |
634 | { | |
635 | /* -m EMUL */ | |
636 | if (i < argc - 1) | |
637 | { | |
638 | emulation = argv[i + 1]; | |
639 | i++; | |
640 | } | |
641 | else | |
df5f2391 | 642 | einfo (_("%F%P: missing argument to -m\n")); |
252b5132 RH |
643 | } |
644 | else if (strcmp (argv[i], "-mips1") == 0 | |
645 | || strcmp (argv[i], "-mips2") == 0 | |
646 | || strcmp (argv[i], "-mips3") == 0 | |
d1cf510e | 647 | || strcmp (argv[i], "-mips4") == 0 |
6f33421c CD |
648 | || strcmp (argv[i], "-mips5") == 0 |
649 | || strcmp (argv[i], "-mips32") == 0 | |
650 | || strcmp (argv[i], "-mips32r2") == 0 | |
7361da2c | 651 | || strcmp (argv[i], "-mips32r6") == 0 |
5f74bc13 | 652 | || strcmp (argv[i], "-mips64") == 0 |
7361da2c AB |
653 | || strcmp (argv[i], "-mips64r2") == 0 |
654 | || strcmp (argv[i], "-mips64r6") == 0) | |
252b5132 | 655 | { |
31d677f9 | 656 | /* FIXME: The arguments -mips1, -mips2, -mips3, etc. are |
252b5132 RH |
657 | passed to the linker by some MIPS compilers. They |
658 | generally tell the linker to use a slightly different | |
659 | library path. Perhaps someday these should be | |
660 | implemented as emulations; until then, we just ignore | |
661 | the arguments and hope that nobody ever creates | |
662 | emulations named ips1, ips2 or ips3. */ | |
663 | } | |
664 | else if (strcmp (argv[i], "-m486") == 0) | |
665 | { | |
666 | /* FIXME: The argument -m486 is passed to the linker on | |
667 | some Linux systems. Hope that nobody creates an | |
668 | emulation named 486. */ | |
669 | } | |
670 | else | |
671 | { | |
672 | /* -mEMUL */ | |
673 | emulation = &argv[i][2]; | |
674 | } | |
675 | } | |
676 | } | |
677 | ||
678 | return emulation; | |
679 | } | |
680 | ||
252b5132 | 681 | void |
1579bae1 | 682 | add_ysym (const char *name) |
252b5132 | 683 | { |
1579bae1 | 684 | if (link_info.notice_hash == NULL) |
252b5132 | 685 | { |
0aa7f586 AM |
686 | link_info.notice_hash |
687 | = (struct bfd_hash_table *) xmalloc (sizeof (struct bfd_hash_table)); | |
66eb6687 AM |
688 | if (!bfd_hash_table_init_n (link_info.notice_hash, |
689 | bfd_hash_newfunc, | |
690 | sizeof (struct bfd_hash_entry), | |
691 | 61)) | |
df5f2391 | 692 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
6d5e62f8 | 693 | } |
252b5132 | 694 | |
1579bae1 | 695 | if (bfd_hash_lookup (link_info.notice_hash, name, TRUE, TRUE) == NULL) |
df5f2391 | 696 | einfo (_("%F%P: bfd_hash_lookup failed: %E\n")); |
252b5132 RH |
697 | } |
698 | ||
0e86e20e AM |
699 | void |
700 | add_ignoresym (struct bfd_link_info *info, const char *name) | |
701 | { | |
702 | if (info->ignore_hash == NULL) | |
703 | { | |
704 | info->ignore_hash = xmalloc (sizeof (struct bfd_hash_table)); | |
0aa7f586 AM |
705 | if (!bfd_hash_table_init_n (info->ignore_hash, |
706 | bfd_hash_newfunc, | |
707 | sizeof (struct bfd_hash_entry), | |
708 | 61)) | |
df5f2391 | 709 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
0e86e20e AM |
710 | } |
711 | ||
712 | if (bfd_hash_lookup (info->ignore_hash, name, TRUE, TRUE) == NULL) | |
df5f2391 | 713 | einfo (_("%F%P: bfd_hash_lookup failed: %E\n")); |
0e86e20e AM |
714 | } |
715 | ||
252b5132 RH |
716 | /* Record a symbol to be wrapped, from the --wrap option. */ |
717 | ||
718 | void | |
1579bae1 | 719 | add_wrap (const char *name) |
252b5132 RH |
720 | { |
721 | if (link_info.wrap_hash == NULL) | |
722 | { | |
0aa7f586 AM |
723 | link_info.wrap_hash |
724 | = (struct bfd_hash_table *) xmalloc (sizeof (struct bfd_hash_table)); | |
66eb6687 AM |
725 | if (!bfd_hash_table_init_n (link_info.wrap_hash, |
726 | bfd_hash_newfunc, | |
727 | sizeof (struct bfd_hash_entry), | |
728 | 61)) | |
df5f2391 | 729 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
252b5132 | 730 | } |
0125cdf2 | 731 | |
b34976b6 | 732 | if (bfd_hash_lookup (link_info.wrap_hash, name, TRUE, TRUE) == NULL) |
df5f2391 | 733 | einfo (_("%F%P: bfd_hash_lookup failed: %E\n")); |
252b5132 RH |
734 | } |
735 | ||
736 | /* Handle the -retain-symbols-file option. */ | |
737 | ||
738 | void | |
1579bae1 | 739 | add_keepsyms_file (const char *filename) |
252b5132 RH |
740 | { |
741 | FILE *file; | |
742 | char *buf; | |
743 | size_t bufsize; | |
744 | int c; | |
745 | ||
746 | if (link_info.strip == strip_some) | |
747 | einfo (_("%X%P: error: duplicate retain-symbols-file\n")); | |
748 | ||
749 | file = fopen (filename, "r"); | |
1579bae1 | 750 | if (file == NULL) |
252b5132 RH |
751 | { |
752 | bfd_set_error (bfd_error_system_call); | |
753 | einfo ("%X%P: %s: %E\n", filename); | |
754 | return; | |
755 | } | |
756 | ||
1e9cc1c2 NC |
757 | link_info.keep_hash = (struct bfd_hash_table *) |
758 | xmalloc (sizeof (struct bfd_hash_table)); | |
66eb6687 AM |
759 | if (!bfd_hash_table_init (link_info.keep_hash, bfd_hash_newfunc, |
760 | sizeof (struct bfd_hash_entry))) | |
df5f2391 | 761 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
252b5132 RH |
762 | |
763 | bufsize = 100; | |
1e9cc1c2 | 764 | buf = (char *) xmalloc (bufsize); |
252b5132 RH |
765 | |
766 | c = getc (file); | |
767 | while (c != EOF) | |
768 | { | |
3882b010 | 769 | while (ISSPACE (c)) |
252b5132 RH |
770 | c = getc (file); |
771 | ||
772 | if (c != EOF) | |
773 | { | |
774 | size_t len = 0; | |
775 | ||
0aa7f586 | 776 | while (!ISSPACE (c) && c != EOF) |
252b5132 RH |
777 | { |
778 | buf[len] = c; | |
779 | ++len; | |
780 | if (len >= bufsize) | |
781 | { | |
782 | bufsize *= 2; | |
1e9cc1c2 | 783 | buf = (char *) xrealloc (buf, bufsize); |
252b5132 RH |
784 | } |
785 | c = getc (file); | |
786 | } | |
787 | ||
788 | buf[len] = '\0'; | |
789 | ||
1579bae1 | 790 | if (bfd_hash_lookup (link_info.keep_hash, buf, TRUE, TRUE) == NULL) |
df5f2391 | 791 | einfo (_("%F%P: bfd_hash_lookup for insertion failed: %E\n")); |
252b5132 RH |
792 | } |
793 | } | |
794 | ||
795 | if (link_info.strip != strip_none) | |
796 | einfo (_("%P: `-retain-symbols-file' overrides `-s' and `-S'\n")); | |
797 | ||
5ed6aba4 | 798 | free (buf); |
252b5132 | 799 | link_info.strip = strip_some; |
d9313f4f | 800 | fclose (file); |
252b5132 RH |
801 | } |
802 | \f | |
803 | /* Callbacks from the BFD linker routines. */ | |
804 | ||
805 | /* This is called when BFD has decided to include an archive member in | |
806 | a link. */ | |
807 | ||
b34976b6 | 808 | static bfd_boolean |
e1fffbe6 | 809 | add_archive_element (struct bfd_link_info *info, |
1579bae1 | 810 | bfd *abfd, |
5d3236ee DK |
811 | const char *name, |
812 | bfd **subsbfd ATTRIBUTE_UNUSED) | |
252b5132 RH |
813 | { |
814 | lang_input_statement_type *input; | |
1fa4ec6a | 815 | lang_input_statement_type *parent; |
5d3236ee | 816 | lang_input_statement_type orig_input; |
252b5132 | 817 | |
1e9cc1c2 NC |
818 | input = (lang_input_statement_type *) |
819 | xcalloc (1, sizeof (lang_input_statement_type)); | |
fb47deda | 820 | input->header.type = lang_input_statement_enum; |
607b4833 AM |
821 | input->filename = bfd_get_filename (abfd); |
822 | input->local_sym_name = bfd_get_filename (abfd); | |
252b5132 | 823 | input->the_bfd = abfd; |
252b5132 | 824 | |
00f93c44 | 825 | parent = bfd_usrdata (abfd->my_archive); |
1fa4ec6a | 826 | if (parent != NULL && !parent->flags.reload) |
36983a93 | 827 | parent->next = input; |
1fa4ec6a | 828 | |
5d3236ee DK |
829 | /* Save the original data for trace files/tries below, as plugins |
830 | (if enabled) may possibly alter it to point to a replacement | |
831 | BFD, but we still want to output the original BFD filename. */ | |
832 | orig_input = *input; | |
0381901e | 833 | #if BFD_SUPPORTS_PLUGINS |
b95a0a31 | 834 | if (link_info.lto_plugin_active) |
5d3236ee DK |
835 | { |
836 | /* We must offer this archive member to the plugins to claim. */ | |
35a1e5f3 L |
837 | plugin_maybe_claim (input); |
838 | if (input->flags.claimed) | |
5d3236ee | 839 | { |
b95a0a31 L |
840 | if (no_more_claiming) |
841 | { | |
842 | /* Don't claim new IR symbols after all IR symbols have | |
843 | been claimed. */ | |
5c87f94b | 844 | if (verbose) |
6e0c75f7 | 845 | info_msg ("%pI: no new IR symbols to claim\n", |
b95a0a31 L |
846 | &orig_input); |
847 | input->flags.claimed = 0; | |
848 | return FALSE; | |
849 | } | |
35a1e5f3 L |
850 | input->flags.claim_archive = TRUE; |
851 | *subsbfd = input->the_bfd; | |
5d3236ee DK |
852 | } |
853 | } | |
0381901e | 854 | #endif /* BFD_SUPPORTS_PLUGINS */ |
5d3236ee | 855 | |
252b5132 RH |
856 | ldlang_add_file (input); |
857 | ||
1579bae1 | 858 | if (config.map_file != NULL) |
252b5132 | 859 | { |
b34976b6 | 860 | static bfd_boolean header_printed; |
252b5132 RH |
861 | struct bfd_link_hash_entry *h; |
862 | bfd *from; | |
863 | int len; | |
864 | ||
e1fffbe6 | 865 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); |
aa654ee8 AM |
866 | if (h == NULL |
867 | && info->pei386_auto_import | |
868 | && CONST_STRNEQ (name, "__imp_")) | |
869 | h = bfd_link_hash_lookup (info->hash, name + 6, FALSE, FALSE, TRUE); | |
252b5132 RH |
870 | |
871 | if (h == NULL) | |
872 | from = NULL; | |
873 | else | |
874 | { | |
875 | switch (h->type) | |
876 | { | |
877 | default: | |
878 | from = NULL; | |
879 | break; | |
880 | ||
881 | case bfd_link_hash_defined: | |
882 | case bfd_link_hash_defweak: | |
883 | from = h->u.def.section->owner; | |
884 | break; | |
885 | ||
886 | case bfd_link_hash_undefined: | |
887 | case bfd_link_hash_undefweak: | |
888 | from = h->u.undef.abfd; | |
889 | break; | |
890 | ||
891 | case bfd_link_hash_common: | |
892 | from = h->u.c.p->section->owner; | |
893 | break; | |
894 | } | |
895 | } | |
896 | ||
0aa7f586 | 897 | if (!header_printed) |
252b5132 | 898 | { |
1273da04 | 899 | minfo (_("Archive member included to satisfy reference by file (symbol)\n\n")); |
b34976b6 | 900 | header_printed = TRUE; |
252b5132 RH |
901 | } |
902 | ||
3860d2b4 AM |
903 | if (abfd->my_archive == NULL |
904 | || bfd_is_thin_archive (abfd->my_archive)) | |
252b5132 RH |
905 | { |
906 | minfo ("%s", bfd_get_filename (abfd)); | |
907 | len = strlen (bfd_get_filename (abfd)); | |
908 | } | |
909 | else | |
910 | { | |
3860d2b4 | 911 | minfo ("%s(%s)", bfd_get_filename (abfd->my_archive), |
252b5132 | 912 | bfd_get_filename (abfd)); |
3860d2b4 | 913 | len = (strlen (bfd_get_filename (abfd->my_archive)) |
252b5132 RH |
914 | + strlen (bfd_get_filename (abfd)) |
915 | + 2); | |
916 | } | |
917 | ||
918 | if (len >= 29) | |
919 | { | |
920 | print_nl (); | |
921 | len = 0; | |
922 | } | |
923 | while (len < 30) | |
924 | { | |
925 | print_space (); | |
926 | ++len; | |
927 | } | |
928 | ||
929 | if (from != NULL) | |
871b3ab2 | 930 | minfo ("%pB ", from); |
252b5132 | 931 | if (h != NULL) |
c1c8c1ef | 932 | minfo ("(%pT)\n", h->root.string); |
252b5132 RH |
933 | else |
934 | minfo ("(%s)\n", name); | |
935 | } | |
936 | ||
727a29ba AM |
937 | if (verbose |
938 | || trace_files > 1 | |
939 | || (trace_files && bfd_is_thin_archive (orig_input.the_bfd->my_archive))) | |
c1c8c1ef | 940 | info_msg ("%pI\n", &orig_input); |
b34976b6 | 941 | return TRUE; |
252b5132 RH |
942 | } |
943 | ||
944 | /* This is called when BFD has discovered a symbol which is defined | |
945 | multiple times. */ | |
946 | ||
1a72702b | 947 | static void |
24f58f47 AM |
948 | multiple_definition (struct bfd_link_info *info, |
949 | struct bfd_link_hash_entry *h, | |
1579bae1 AM |
950 | bfd *nbfd, |
951 | asection *nsec, | |
952 | bfd_vma nval) | |
252b5132 | 953 | { |
24f58f47 AM |
954 | const char *name; |
955 | bfd *obfd; | |
956 | asection *osec; | |
957 | bfd_vma oval; | |
958 | ||
959 | if (info->allow_multiple_definition) | |
1a72702b | 960 | return; |
24f58f47 AM |
961 | |
962 | switch (h->type) | |
963 | { | |
964 | case bfd_link_hash_defined: | |
965 | osec = h->u.def.section; | |
966 | oval = h->u.def.value; | |
967 | obfd = h->u.def.section->owner; | |
968 | break; | |
969 | case bfd_link_hash_indirect: | |
970 | osec = bfd_ind_section_ptr; | |
971 | oval = 0; | |
972 | obfd = NULL; | |
973 | break; | |
974 | default: | |
975 | abort (); | |
976 | } | |
977 | ||
978 | /* Ignore a redefinition of an absolute symbol to the | |
979 | same value; it's harmless. */ | |
980 | if (h->type == bfd_link_hash_defined | |
981 | && bfd_is_abs_section (osec) | |
982 | && bfd_is_abs_section (nsec) | |
983 | && nval == oval) | |
1a72702b | 984 | return; |
24f58f47 | 985 | |
252b5132 RH |
986 | /* If either section has the output_section field set to |
987 | bfd_abs_section_ptr, it means that the section is being | |
988 | discarded, and this is not really a multiple definition at all. | |
9e2278f5 AM |
989 | FIXME: It would be cleaner to somehow ignore symbols defined in |
990 | sections which are being discarded. */ | |
3f0a5f17 ME |
991 | if (!info->prohibit_multiple_definition_absolute |
992 | && ((osec->output_section != NULL | |
993 | && ! bfd_is_abs_section (osec) | |
994 | && bfd_is_abs_section (osec->output_section)) | |
995 | || (nsec->output_section != NULL | |
996 | && !bfd_is_abs_section (nsec) | |
997 | && bfd_is_abs_section (nsec->output_section)))) | |
1a72702b | 998 | return; |
252b5132 | 999 | |
24f58f47 AM |
1000 | name = h->root.string; |
1001 | if (nbfd == NULL) | |
1002 | { | |
1003 | nbfd = obfd; | |
1004 | nsec = osec; | |
1005 | nval = oval; | |
1006 | obfd = NULL; | |
1007 | } | |
df5f2391 | 1008 | einfo (_("%X%P: %C: multiple definition of `%pT'"), |
252b5132 | 1009 | nbfd, nsec, nval, name); |
1579bae1 | 1010 | if (obfd != NULL) |
df5f2391 AM |
1011 | einfo (_("; %D: first defined here"), obfd, osec, oval); |
1012 | einfo ("\n"); | |
9b14b192 | 1013 | |
13761a11 | 1014 | if (RELAXATION_ENABLED_BY_USER) |
9b14b192 | 1015 | { |
df5f2391 | 1016 | einfo (_("%P: disabling relaxation; it will not work with multiple definitions\n")); |
13761a11 | 1017 | DISABLE_RELAXATION; |
9b14b192 | 1018 | } |
252b5132 RH |
1019 | } |
1020 | ||
1021 | /* This is called when there is a definition of a common symbol, or | |
1022 | when a common symbol is found for a symbol that is already defined, | |
1023 | or when two common symbols are found. We only do something if | |
1024 | -warn-common was used. */ | |
1025 | ||
1a72702b | 1026 | static void |
1579bae1 | 1027 | multiple_common (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
24f58f47 | 1028 | struct bfd_link_hash_entry *h, |
1579bae1 AM |
1029 | bfd *nbfd, |
1030 | enum bfd_link_hash_type ntype, | |
1031 | bfd_vma nsize) | |
252b5132 | 1032 | { |
24f58f47 AM |
1033 | const char *name; |
1034 | bfd *obfd; | |
1035 | enum bfd_link_hash_type otype; | |
1036 | bfd_vma osize; | |
1037 | ||
1038 | if (!config.warn_common) | |
1a72702b | 1039 | return; |
252b5132 | 1040 | |
24f58f47 AM |
1041 | name = h->root.string; |
1042 | otype = h->type; | |
1043 | if (otype == bfd_link_hash_common) | |
1044 | { | |
1045 | obfd = h->u.c.p->section->owner; | |
1046 | osize = h->u.c.size; | |
1047 | } | |
1048 | else if (otype == bfd_link_hash_defined | |
1049 | || otype == bfd_link_hash_defweak) | |
1050 | { | |
1051 | obfd = h->u.def.section->owner; | |
1052 | osize = 0; | |
1053 | } | |
1054 | else | |
1055 | { | |
1056 | /* FIXME: It would nice if we could report the BFD which defined | |
1057 | an indirect symbol, but we don't have anywhere to store the | |
1058 | information. */ | |
1059 | obfd = NULL; | |
1060 | osize = 0; | |
1061 | } | |
1062 | ||
252b5132 RH |
1063 | if (ntype == bfd_link_hash_defined |
1064 | || ntype == bfd_link_hash_defweak | |
1065 | || ntype == bfd_link_hash_indirect) | |
1066 | { | |
1067 | ASSERT (otype == bfd_link_hash_common); | |
252b5132 | 1068 | if (obfd != NULL) |
df5f2391 AM |
1069 | einfo (_("%P: %pB: warning: definition of `%pT' overriding common" |
1070 | " from %pB\n"), | |
1071 | nbfd, name, obfd); | |
1072 | else | |
1073 | einfo (_("%P: %pB: warning: definition of `%pT' overriding common\n"), | |
1074 | nbfd, name); | |
252b5132 RH |
1075 | } |
1076 | else if (otype == bfd_link_hash_defined | |
1077 | || otype == bfd_link_hash_defweak | |
1078 | || otype == bfd_link_hash_indirect) | |
1079 | { | |
1080 | ASSERT (ntype == bfd_link_hash_common); | |
252b5132 | 1081 | if (obfd != NULL) |
df5f2391 AM |
1082 | einfo (_("%P: %pB: warning: common of `%pT' overridden by definition" |
1083 | " from %pB\n"), | |
1084 | nbfd, name, obfd); | |
1085 | else | |
1086 | einfo (_("%P: %pB: warning: common of `%pT' overridden by definition\n"), | |
1087 | nbfd, name); | |
252b5132 RH |
1088 | } |
1089 | else | |
1090 | { | |
1091 | ASSERT (otype == bfd_link_hash_common && ntype == bfd_link_hash_common); | |
1092 | if (osize > nsize) | |
1093 | { | |
252b5132 | 1094 | if (obfd != NULL) |
df5f2391 AM |
1095 | einfo (_("%P: %pB: warning: common of `%pT' overridden" |
1096 | " by larger common from %pB\n"), | |
1097 | nbfd, name, obfd); | |
1098 | else | |
1099 | einfo (_("%P: %pB: warning: common of `%pT' overridden" | |
1100 | " by larger common\n"), | |
1101 | nbfd, name); | |
252b5132 RH |
1102 | } |
1103 | else if (nsize > osize) | |
1104 | { | |
252b5132 | 1105 | if (obfd != NULL) |
df5f2391 AM |
1106 | einfo (_("%P: %pB: warning: common of `%pT' overriding" |
1107 | " smaller common from %pB\n"), | |
1108 | nbfd, name, obfd); | |
1109 | else | |
1110 | einfo (_("%P: %pB: warning: common of `%pT' overriding" | |
1111 | " smaller common\n"), | |
1112 | nbfd, name); | |
252b5132 RH |
1113 | } |
1114 | else | |
1115 | { | |
252b5132 | 1116 | if (obfd != NULL) |
df5f2391 AM |
1117 | einfo (_("%P: %pB and %pB: warning: multiple common of `%pT'\n"), |
1118 | nbfd, obfd, name); | |
1119 | else | |
1120 | einfo (_("%P: %pB: warning: multiple common of `%pT'\n"), | |
1121 | nbfd, name); | |
252b5132 RH |
1122 | } |
1123 | } | |
252b5132 RH |
1124 | } |
1125 | ||
1126 | /* This is called when BFD has discovered a set element. H is the | |
1127 | entry in the linker hash table for the set. SECTION and VALUE | |
1128 | represent a value which should be added to the set. */ | |
1129 | ||
1a72702b | 1130 | static void |
1579bae1 AM |
1131 | add_to_set (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1132 | struct bfd_link_hash_entry *h, | |
1133 | bfd_reloc_code_real_type reloc, | |
1134 | bfd *abfd, | |
1135 | asection *section, | |
1136 | bfd_vma value) | |
252b5132 RH |
1137 | { |
1138 | if (config.warn_constructors) | |
1139 | einfo (_("%P: warning: global constructor %s used\n"), | |
1140 | h->root.string); | |
1141 | ||
0aa7f586 | 1142 | if (!config.build_constructors) |
1a72702b | 1143 | return; |
252b5132 | 1144 | |
1579bae1 | 1145 | ldctor_add_set_entry (h, reloc, NULL, section, value); |
252b5132 RH |
1146 | |
1147 | if (h->type == bfd_link_hash_new) | |
1148 | { | |
1149 | h->type = bfd_link_hash_undefined; | |
1150 | h->u.undef.abfd = abfd; | |
1151 | /* We don't call bfd_link_add_undef to add this to the list of | |
1152 | undefined symbols because we are going to define it | |
1153 | ourselves. */ | |
1154 | } | |
252b5132 RH |
1155 | } |
1156 | ||
1157 | /* This is called when BFD has discovered a constructor. This is only | |
1158 | called for some object file formats--those which do not handle | |
1159 | constructors in some more clever fashion. This is similar to | |
1160 | adding an element to a set, but less general. */ | |
1161 | ||
1a72702b | 1162 | static void |
1579bae1 AM |
1163 | constructor_callback (struct bfd_link_info *info, |
1164 | bfd_boolean constructor, | |
1165 | const char *name, | |
1166 | bfd *abfd, | |
1167 | asection *section, | |
1168 | bfd_vma value) | |
252b5132 RH |
1169 | { |
1170 | char *s; | |
1171 | struct bfd_link_hash_entry *h; | |
1172 | char set_name[1 + sizeof "__CTOR_LIST__"]; | |
1173 | ||
1174 | if (config.warn_constructors) | |
1175 | einfo (_("%P: warning: global constructor %s used\n"), name); | |
1176 | ||
0aa7f586 | 1177 | if (!config.build_constructors) |
1a72702b | 1178 | return; |
252b5132 RH |
1179 | |
1180 | /* Ensure that BFD_RELOC_CTOR exists now, so that we can give a | |
1181 | useful error message. */ | |
0e86e20e | 1182 | if (bfd_reloc_type_lookup (info->output_bfd, BFD_RELOC_CTOR) == NULL |
0e1862bb | 1183 | && (bfd_link_relocatable (info) |
252b5132 | 1184 | || bfd_reloc_type_lookup (abfd, BFD_RELOC_CTOR) == NULL)) |
df5f2391 | 1185 | einfo (_("%F%P: BFD backend error: BFD_RELOC_CTOR unsupported\n")); |
252b5132 RH |
1186 | |
1187 | s = set_name; | |
1188 | if (bfd_get_symbol_leading_char (abfd) != '\0') | |
1189 | *s++ = bfd_get_symbol_leading_char (abfd); | |
1190 | if (constructor) | |
1191 | strcpy (s, "__CTOR_LIST__"); | |
1192 | else | |
1193 | strcpy (s, "__DTOR_LIST__"); | |
1194 | ||
b34976b6 | 1195 | h = bfd_link_hash_lookup (info->hash, set_name, TRUE, TRUE, TRUE); |
252b5132 | 1196 | if (h == (struct bfd_link_hash_entry *) NULL) |
df5f2391 | 1197 | einfo (_("%F%P: bfd_link_hash_lookup failed: %E\n")); |
252b5132 RH |
1198 | if (h->type == bfd_link_hash_new) |
1199 | { | |
1200 | h->type = bfd_link_hash_undefined; | |
1201 | h->u.undef.abfd = abfd; | |
1202 | /* We don't call bfd_link_add_undef to add this to the list of | |
1203 | undefined symbols because we are going to define it | |
1204 | ourselves. */ | |
1205 | } | |
1206 | ||
1207 | ldctor_add_set_entry (h, BFD_RELOC_CTOR, name, section, value); | |
252b5132 RH |
1208 | } |
1209 | ||
1210 | /* A structure used by warning_callback to pass information through | |
1211 | bfd_map_over_sections. */ | |
1212 | ||
0125cdf2 NC |
1213 | struct warning_callback_info |
1214 | { | |
b34976b6 | 1215 | bfd_boolean found; |
252b5132 RH |
1216 | const char *warning; |
1217 | const char *symbol; | |
1218 | asymbol **asymbols; | |
1219 | }; | |
1220 | ||
4c6d802e L |
1221 | /* Look through the relocs to see if we can find a plausible address |
1222 | for SYMBOL in ABFD. Return TRUE if found. Otherwise return FALSE. */ | |
1223 | ||
1224 | static bfd_boolean | |
1225 | symbol_warning (const char *warning, const char *symbol, bfd *abfd) | |
1226 | { | |
1227 | struct warning_callback_info cinfo; | |
1228 | ||
1229 | if (!bfd_generic_link_read_symbols (abfd)) | |
df5f2391 | 1230 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), abfd); |
4c6d802e L |
1231 | |
1232 | cinfo.found = FALSE; | |
1233 | cinfo.warning = warning; | |
1234 | cinfo.symbol = symbol; | |
1235 | cinfo.asymbols = bfd_get_outsymbols (abfd); | |
1236 | bfd_map_over_sections (abfd, warning_find_reloc, &cinfo); | |
1237 | return cinfo.found; | |
1238 | } | |
1239 | ||
252b5132 RH |
1240 | /* This is called when there is a reference to a warning symbol. */ |
1241 | ||
1a72702b | 1242 | static void |
1579bae1 AM |
1243 | warning_callback (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1244 | const char *warning, | |
1245 | const char *symbol, | |
1246 | bfd *abfd, | |
1247 | asection *section, | |
1248 | bfd_vma address) | |
252b5132 RH |
1249 | { |
1250 | /* This is a hack to support warn_multiple_gp. FIXME: This should | |
1251 | have a cleaner interface, but what? */ | |
0aa7f586 | 1252 | if (!config.warn_multiple_gp |
252b5132 | 1253 | && strcmp (warning, "using multiple gp values") == 0) |
1a72702b | 1254 | return; |
252b5132 RH |
1255 | |
1256 | if (section != NULL) | |
df5f2391 | 1257 | einfo ("%P: %C: %s%s\n", abfd, section, address, _("warning: "), warning); |
252b5132 | 1258 | else if (abfd == NULL) |
300475fe | 1259 | einfo ("%P: %s%s\n", _("warning: "), warning); |
252b5132 | 1260 | else if (symbol == NULL) |
df5f2391 | 1261 | einfo ("%P: %pB: %s%s\n", abfd, _("warning: "), warning); |
0aa7f586 | 1262 | else if (!symbol_warning (warning, symbol, abfd)) |
252b5132 | 1263 | { |
4c6d802e L |
1264 | bfd *b; |
1265 | /* Search all input files for a reference to SYMBOL. */ | |
c72f2fb2 | 1266 | for (b = info->input_bfds; b; b = b->link.next) |
4c6d802e | 1267 | if (b != abfd && symbol_warning (warning, symbol, b)) |
1a72702b | 1268 | return; |
df5f2391 | 1269 | einfo ("%P: %pB: %s%s\n", abfd, _("warning: "), warning); |
252b5132 | 1270 | } |
252b5132 RH |
1271 | } |
1272 | ||
1273 | /* This is called by warning_callback for each section. It checks the | |
1274 | relocs of the section to see if it can find a reference to the | |
1275 | symbol which triggered the warning. If it can, it uses the reloc | |
1276 | to give an error message with a file and line number. */ | |
1277 | ||
1278 | static void | |
1579bae1 | 1279 | warning_find_reloc (bfd *abfd, asection *sec, void *iarg) |
252b5132 | 1280 | { |
1e9cc1c2 | 1281 | struct warning_callback_info *info = (struct warning_callback_info *) iarg; |
252b5132 RH |
1282 | long relsize; |
1283 | arelent **relpp; | |
1284 | long relcount; | |
1285 | arelent **p, **pend; | |
1286 | ||
1287 | if (info->found) | |
1288 | return; | |
1289 | ||
1290 | relsize = bfd_get_reloc_upper_bound (abfd, sec); | |
1291 | if (relsize < 0) | |
df5f2391 | 1292 | einfo (_("%F%P: %pB: could not read relocs: %E\n"), abfd); |
252b5132 RH |
1293 | if (relsize == 0) |
1294 | return; | |
1295 | ||
1e9cc1c2 | 1296 | relpp = (arelent **) xmalloc (relsize); |
252b5132 RH |
1297 | relcount = bfd_canonicalize_reloc (abfd, sec, relpp, info->asymbols); |
1298 | if (relcount < 0) | |
df5f2391 | 1299 | einfo (_("%F%P: %pB: could not read relocs: %E\n"), abfd); |
252b5132 RH |
1300 | |
1301 | p = relpp; | |
1302 | pend = p + relcount; | |
1303 | for (; p < pend && *p != NULL; p++) | |
1304 | { | |
1305 | arelent *q = *p; | |
1306 | ||
1307 | if (q->sym_ptr_ptr != NULL | |
1308 | && *q->sym_ptr_ptr != NULL | |
1309 | && strcmp (bfd_asymbol_name (*q->sym_ptr_ptr), info->symbol) == 0) | |
1310 | { | |
1311 | /* We found a reloc for the symbol we are looking for. */ | |
df5f2391 | 1312 | einfo ("%P: %C: %s%s\n", abfd, sec, q->address, _("warning: "), |
300475fe | 1313 | info->warning); |
b34976b6 | 1314 | info->found = TRUE; |
252b5132 RH |
1315 | break; |
1316 | } | |
1317 | } | |
1318 | ||
1319 | free (relpp); | |
1320 | } | |
1321 | ||
1322 | /* This is called when an undefined symbol is found. */ | |
1323 | ||
1a72702b | 1324 | static void |
0e86e20e | 1325 | undefined_symbol (struct bfd_link_info *info, |
1579bae1 AM |
1326 | const char *name, |
1327 | bfd *abfd, | |
1328 | asection *section, | |
1329 | bfd_vma address, | |
0b28295d | 1330 | bfd_boolean error) |
252b5132 RH |
1331 | { |
1332 | static char *error_name; | |
1333 | static unsigned int error_count; | |
1334 | ||
1335 | #define MAX_ERRORS_IN_A_ROW 5 | |
1336 | ||
0e86e20e AM |
1337 | if (info->ignore_hash != NULL |
1338 | && bfd_hash_lookup (info->ignore_hash, name, FALSE, FALSE) != NULL) | |
1a72702b | 1339 | return; |
0e86e20e | 1340 | |
252b5132 RH |
1341 | if (config.warn_once) |
1342 | { | |
252b5132 | 1343 | /* Only warn once about a particular undefined symbol. */ |
0e86e20e | 1344 | add_ignoresym (info, name); |
252b5132 RH |
1345 | } |
1346 | ||
1347 | /* We never print more than a reasonable number of errors in a row | |
1348 | for a single symbol. */ | |
1579bae1 | 1349 | if (error_name != NULL |
252b5132 RH |
1350 | && strcmp (name, error_name) == 0) |
1351 | ++error_count; | |
1352 | else | |
1353 | { | |
1354 | error_count = 0; | |
5e2ab612 | 1355 | free (error_name); |
d1b2b2dc | 1356 | error_name = xstrdup (name); |
252b5132 RH |
1357 | } |
1358 | ||
1359 | if (section != NULL) | |
1360 | { | |
1361 | if (error_count < MAX_ERRORS_IN_A_ROW) | |
b6f29aaa | 1362 | { |
0b28295d | 1363 | if (error) |
df5f2391 | 1364 | einfo (_("%X%P: %C: undefined reference to `%pT'\n"), |
0b28295d ILT |
1365 | abfd, section, address, name); |
1366 | else | |
df5f2391 | 1367 | einfo (_("%P: %C: warning: undefined reference to `%pT'\n"), |
0b28295d | 1368 | abfd, section, address, name); |
b6f29aaa | 1369 | } |
252b5132 | 1370 | else if (error_count == MAX_ERRORS_IN_A_ROW) |
0b28295d ILT |
1371 | { |
1372 | if (error) | |
df5f2391 | 1373 | einfo (_("%X%P: %D: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1374 | abfd, section, address, name); |
1375 | else | |
df5f2391 | 1376 | einfo (_("%P: %D: warning: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1377 | abfd, section, address, name); |
1378 | } | |
1379 | else if (error) | |
1380 | einfo ("%X"); | |
252b5132 RH |
1381 | } |
1382 | else | |
1383 | { | |
1384 | if (error_count < MAX_ERRORS_IN_A_ROW) | |
b6f29aaa | 1385 | { |
0b28295d | 1386 | if (error) |
df5f2391 | 1387 | einfo (_("%X%P: %pB: undefined reference to `%pT'\n"), |
0b28295d ILT |
1388 | abfd, name); |
1389 | else | |
df5f2391 | 1390 | einfo (_("%P: %pB: warning: undefined reference to `%pT'\n"), |
0b28295d | 1391 | abfd, name); |
b6f29aaa | 1392 | } |
252b5132 | 1393 | else if (error_count == MAX_ERRORS_IN_A_ROW) |
0b28295d ILT |
1394 | { |
1395 | if (error) | |
df5f2391 | 1396 | einfo (_("%X%P: %pB: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1397 | abfd, name); |
1398 | else | |
df5f2391 | 1399 | einfo (_("%P: %pB: warning: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1400 | abfd, name); |
1401 | } | |
1402 | else if (error) | |
1403 | einfo ("%X"); | |
252b5132 | 1404 | } |
252b5132 RH |
1405 | } |
1406 | ||
8aae64e6 AO |
1407 | /* Counter to limit the number of relocation overflow error messages |
1408 | to print. Errors are printed as it is decremented. When it's | |
1409 | called and the counter is zero, a final message is printed | |
1410 | indicating more relocations were omitted. When it gets to -1, no | |
1411 | such errors are printed. If it's initially set to a value less | |
1412 | than -1, all such errors will be printed (--verbose does this). */ | |
1413 | ||
1414 | int overflow_cutoff_limit = 10; | |
1415 | ||
252b5132 RH |
1416 | /* This is called when a reloc overflows. */ |
1417 | ||
1a72702b | 1418 | static void |
0e86e20e | 1419 | reloc_overflow (struct bfd_link_info *info, |
dfeffb9f | 1420 | struct bfd_link_hash_entry *entry, |
1579bae1 AM |
1421 | const char *name, |
1422 | const char *reloc_name, | |
1423 | bfd_vma addend, | |
1424 | bfd *abfd, | |
1425 | asection *section, | |
1426 | bfd_vma address) | |
252b5132 | 1427 | { |
8aae64e6 | 1428 | if (overflow_cutoff_limit == -1) |
1a72702b | 1429 | return; |
8aae64e6 | 1430 | |
a5990ada | 1431 | einfo ("%X%H:", abfd, section, address); |
8aae64e6 AO |
1432 | |
1433 | if (overflow_cutoff_limit >= 0 | |
1434 | && overflow_cutoff_limit-- == 0) | |
1435 | { | |
1436 | einfo (_(" additional relocation overflows omitted from the output\n")); | |
1a72702b | 1437 | return; |
8aae64e6 AO |
1438 | } |
1439 | ||
dfeffb9f L |
1440 | if (entry) |
1441 | { | |
1442 | while (entry->type == bfd_link_hash_indirect | |
1443 | || entry->type == bfd_link_hash_warning) | |
1444 | entry = entry->u.i.link; | |
1445 | switch (entry->type) | |
1446 | { | |
1447 | case bfd_link_hash_undefined: | |
1448 | case bfd_link_hash_undefweak: | |
0aa7f586 | 1449 | einfo (_(" relocation truncated to fit: " |
c1c8c1ef | 1450 | "%s against undefined symbol `%pT'"), |
dfeffb9f L |
1451 | reloc_name, entry->root.string); |
1452 | break; | |
1453 | case bfd_link_hash_defined: | |
1454 | case bfd_link_hash_defweak: | |
0aa7f586 | 1455 | einfo (_(" relocation truncated to fit: " |
c1c8c1ef | 1456 | "%s against symbol `%pT' defined in %pA section in %pB"), |
dfeffb9f | 1457 | reloc_name, entry->root.string, |
a6e1b90f L |
1458 | entry->u.def.section, |
1459 | entry->u.def.section == bfd_abs_section_ptr | |
0e86e20e | 1460 | ? info->output_bfd : entry->u.def.section->owner); |
dfeffb9f L |
1461 | break; |
1462 | default: | |
1463 | abort (); | |
1464 | break; | |
1465 | } | |
1466 | } | |
1467 | else | |
c1c8c1ef | 1468 | einfo (_(" relocation truncated to fit: %s against `%pT'"), |
dfeffb9f | 1469 | reloc_name, name); |
252b5132 RH |
1470 | if (addend != 0) |
1471 | einfo ("+%v", addend); | |
1472 | einfo ("\n"); | |
252b5132 RH |
1473 | } |
1474 | ||
1475 | /* This is called when a dangerous relocation is made. */ | |
1476 | ||
1a72702b | 1477 | static void |
1579bae1 AM |
1478 | reloc_dangerous (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1479 | const char *message, | |
1480 | bfd *abfd, | |
1481 | asection *section, | |
1482 | bfd_vma address) | |
252b5132 | 1483 | { |
a5990ada | 1484 | einfo (_("%X%H: dangerous relocation: %s\n"), |
e1fffbe6 | 1485 | abfd, section, address, message); |
252b5132 RH |
1486 | } |
1487 | ||
1488 | /* This is called when a reloc is being generated attached to a symbol | |
1489 | that is not being output. */ | |
1490 | ||
1a72702b | 1491 | static void |
1579bae1 AM |
1492 | unattached_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1493 | const char *name, | |
1494 | bfd *abfd, | |
1495 | asection *section, | |
1496 | bfd_vma address) | |
252b5132 | 1497 | { |
a5990ada | 1498 | einfo (_("%X%H: reloc refers to symbol `%pT' which is not being output\n"), |
e1fffbe6 | 1499 | abfd, section, address, name); |
252b5132 RH |
1500 | } |
1501 | ||
1502 | /* This is called if link_info.notice_all is set, or when a symbol in | |
1503 | link_info.notice_hash is found. Symbols are put in notice_hash | |
5d3236ee DK |
1504 | using the -y option, while notice_all is set if the --cref option |
1505 | has been supplied, or if there are any NOCROSSREFS sections in the | |
1506 | linker script; and if plugins are active, since they need to monitor | |
1507 | all references from non-IR files. */ | |
252b5132 | 1508 | |
b34976b6 | 1509 | static bfd_boolean |
1579bae1 | 1510 | notice (struct bfd_link_info *info, |
35ed3f94 | 1511 | struct bfd_link_hash_entry *h, |
46135103 | 1512 | struct bfd_link_hash_entry *inh ATTRIBUTE_UNUSED, |
1579bae1 AM |
1513 | bfd *abfd, |
1514 | asection *section, | |
16d96b5b | 1515 | bfd_vma value, |
46135103 | 1516 | flagword flags ATTRIBUTE_UNUSED) |
252b5132 | 1517 | { |
35ed3f94 AM |
1518 | const char *name; |
1519 | ||
1520 | if (h == NULL) | |
5061a885 AM |
1521 | { |
1522 | if (command_line.cref || nocrossref_list != NULL) | |
1e9cc1c2 | 1523 | return handle_asneeded_cref (abfd, (enum notice_asneeded_action) value); |
5061a885 AM |
1524 | return TRUE; |
1525 | } | |
1526 | ||
35ed3f94 | 1527 | name = h->root.string; |
5d3236ee | 1528 | if (info->notice_hash != NULL |
9e2278f5 | 1529 | && bfd_hash_lookup (info->notice_hash, name, FALSE, FALSE) != NULL) |
252b5132 RH |
1530 | { |
1531 | if (bfd_is_und_section (section)) | |
df5f2391 | 1532 | einfo (_("%P: %pB: reference to %s\n"), abfd, name); |
252b5132 | 1533 | else |
df5f2391 | 1534 | einfo (_("%P: %pB: definition of %s\n"), abfd, name); |
252b5132 RH |
1535 | } |
1536 | ||
1537 | if (command_line.cref || nocrossref_list != NULL) | |
1538 | add_cref (name, abfd, section, value); | |
1539 | ||
b34976b6 | 1540 | return TRUE; |
252b5132 | 1541 | } |