| 1 | /* ldmisc.c |
| 2 | Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000 |
| 3 | Free Software Foundation, Inc. |
| 4 | Written by Steve Chamberlain of Cygnus Support. |
| 5 | |
| 6 | This file is part of GLD, the Gnu Linker. |
| 7 | |
| 8 | GLD is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 2, or (at your option) |
| 11 | any later version. |
| 12 | |
| 13 | GLD is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with GLD; see the file COPYING. If not, write to the Free |
| 20 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
| 21 | 02111-1307, USA. */ |
| 22 | |
| 23 | #include "bfd.h" |
| 24 | #include "sysdep.h" |
| 25 | #include "libiberty.h" |
| 26 | #include "demangle.h" |
| 27 | |
| 28 | #ifdef ANSI_PROTOTYPES |
| 29 | #include <stdarg.h> |
| 30 | #define USE_STDARG 1 |
| 31 | #else |
| 32 | #include <varargs.h> |
| 33 | #define USE_STDARG 0 |
| 34 | #endif |
| 35 | |
| 36 | #include "ld.h" |
| 37 | #include "ldmisc.h" |
| 38 | #include "ldexp.h" |
| 39 | #include "ldlang.h" |
| 40 | #include "ldgram.h" |
| 41 | #include "ldlex.h" |
| 42 | #include "ldmain.h" |
| 43 | #include "ldfile.h" |
| 44 | |
| 45 | static void vfinfo PARAMS ((FILE *, const char *, va_list)); |
| 46 | |
| 47 | /* |
| 48 | %% literal % |
| 49 | %F error is fatal |
| 50 | %P print program name |
| 51 | %S print script file and linenumber |
| 52 | %E current bfd error or errno |
| 53 | %I filename from a lang_input_statement_type |
| 54 | %B filename from a bfd |
| 55 | %T symbol name |
| 56 | %X no object output, fail return |
| 57 | %V hex bfd_vma |
| 58 | %v hex bfd_vma, no leading zeros |
| 59 | %W hex bfd_vma with 0x with no leading zeros taking up 8 spaces |
| 60 | %C clever filename:linenumber with function |
| 61 | %D like %C, but no function name |
| 62 | %G like %D, but only function name |
| 63 | %R info about a relent |
| 64 | %s arbitrary string, like printf |
| 65 | %d integer, like printf |
| 66 | %u integer, like printf |
| 67 | */ |
| 68 | |
| 69 | char * |
| 70 | demangle (string) |
| 71 | const char *string; |
| 72 | { |
| 73 | char *res; |
| 74 | |
| 75 | if (output_bfd != NULL |
| 76 | && bfd_get_symbol_leading_char (output_bfd) == string[0]) |
| 77 | ++string; |
| 78 | |
| 79 | /* This is a hack for better error reporting on XCOFF, or the MS PE */ |
| 80 | /* format. Xcoff has a single '.', while the NT PE for PPC has '..'. */ |
| 81 | /* So we remove all of them. */ |
| 82 | while(string[0] == '.') |
| 83 | ++string; |
| 84 | |
| 85 | res = cplus_demangle (string, DMGL_ANSI | DMGL_PARAMS); |
| 86 | return res ? res : xstrdup (string); |
| 87 | } |
| 88 | |
| 89 | static void |
| 90 | vfinfo (fp, fmt, arg) |
| 91 | FILE *fp; |
| 92 | const char *fmt; |
| 93 | va_list arg; |
| 94 | { |
| 95 | boolean fatal = false; |
| 96 | |
| 97 | while (*fmt != '\0') |
| 98 | { |
| 99 | while (*fmt != '%' && *fmt != '\0') |
| 100 | { |
| 101 | putc (*fmt, fp); |
| 102 | fmt++; |
| 103 | } |
| 104 | |
| 105 | if (*fmt == '%') |
| 106 | { |
| 107 | fmt ++; |
| 108 | switch (*fmt++) |
| 109 | { |
| 110 | default: |
| 111 | fprintf (fp,"%%%c", fmt[-1]); |
| 112 | break; |
| 113 | |
| 114 | case '%': |
| 115 | /* literal % */ |
| 116 | putc ('%', fp); |
| 117 | break; |
| 118 | |
| 119 | case 'X': |
| 120 | /* no object output, fail return */ |
| 121 | config.make_executable = false; |
| 122 | break; |
| 123 | |
| 124 | case 'V': |
| 125 | /* hex bfd_vma */ |
| 126 | { |
| 127 | bfd_vma value = va_arg (arg, bfd_vma); |
| 128 | fprintf_vma (fp, value); |
| 129 | } |
| 130 | break; |
| 131 | |
| 132 | case 'v': |
| 133 | /* hex bfd_vma, no leading zeros */ |
| 134 | { |
| 135 | char buf[100]; |
| 136 | char *p = buf; |
| 137 | bfd_vma value = va_arg (arg, bfd_vma); |
| 138 | sprintf_vma (p, value); |
| 139 | while (*p == '0') |
| 140 | p++; |
| 141 | if (!*p) |
| 142 | p--; |
| 143 | fputs (p, fp); |
| 144 | } |
| 145 | break; |
| 146 | |
| 147 | case 'W': |
| 148 | /* hex bfd_vma with 0x with no leading zeroes taking up |
| 149 | 8 spaces. */ |
| 150 | { |
| 151 | char buf[100]; |
| 152 | bfd_vma value; |
| 153 | char *p; |
| 154 | int len; |
| 155 | |
| 156 | value = va_arg (arg, bfd_vma); |
| 157 | sprintf_vma (buf, value); |
| 158 | for (p = buf; *p == '0'; ++p) |
| 159 | ; |
| 160 | if (*p == '\0') |
| 161 | --p; |
| 162 | len = strlen (p); |
| 163 | while (len < 8) |
| 164 | { |
| 165 | putc (' ', fp); |
| 166 | ++len; |
| 167 | } |
| 168 | fprintf (fp, "0x%s", p); |
| 169 | } |
| 170 | break; |
| 171 | |
| 172 | case 'T': |
| 173 | /* Symbol name. */ |
| 174 | { |
| 175 | const char *name = va_arg (arg, const char *); |
| 176 | |
| 177 | if (name == (const char *) NULL || *name == 0) |
| 178 | fprintf (fp, _("no symbol")); |
| 179 | else if (! demangling) |
| 180 | fprintf (fp, "%s", name); |
| 181 | else |
| 182 | { |
| 183 | char *demangled; |
| 184 | |
| 185 | demangled = demangle (name); |
| 186 | fprintf (fp, "%s", demangled); |
| 187 | free (demangled); |
| 188 | } |
| 189 | } |
| 190 | break; |
| 191 | |
| 192 | case 'B': |
| 193 | /* filename from a bfd */ |
| 194 | { |
| 195 | bfd *abfd = va_arg (arg, bfd *); |
| 196 | if (abfd->my_archive) |
| 197 | fprintf (fp, "%s(%s)", abfd->my_archive->filename, |
| 198 | abfd->filename); |
| 199 | else |
| 200 | fprintf (fp, "%s", abfd->filename); |
| 201 | } |
| 202 | break; |
| 203 | |
| 204 | case 'F': |
| 205 | /* error is fatal */ |
| 206 | fatal = true; |
| 207 | break; |
| 208 | |
| 209 | case 'P': |
| 210 | /* print program name */ |
| 211 | fprintf (fp, "%s", program_name); |
| 212 | break; |
| 213 | |
| 214 | case 'E': |
| 215 | /* current bfd error or errno */ |
| 216 | fprintf (fp, "%s", bfd_errmsg (bfd_get_error ())); |
| 217 | break; |
| 218 | |
| 219 | case 'I': |
| 220 | /* filename from a lang_input_statement_type */ |
| 221 | { |
| 222 | lang_input_statement_type *i; |
| 223 | |
| 224 | i = va_arg (arg, lang_input_statement_type *); |
| 225 | if (bfd_my_archive (i->the_bfd) != NULL) |
| 226 | fprintf (fp, "(%s)", |
| 227 | bfd_get_filename (bfd_my_archive (i->the_bfd))); |
| 228 | fprintf (fp, "%s", i->local_sym_name); |
| 229 | if (bfd_my_archive (i->the_bfd) == NULL |
| 230 | && strcmp (i->local_sym_name, i->filename) != 0) |
| 231 | fprintf (fp, " (%s)", i->filename); |
| 232 | } |
| 233 | break; |
| 234 | |
| 235 | case 'S': |
| 236 | /* print script file and linenumber */ |
| 237 | if (parsing_defsym) |
| 238 | fprintf (fp, "--defsym %s", lex_string); |
| 239 | else if (ldfile_input_filename != NULL) |
| 240 | fprintf (fp, "%s:%u", ldfile_input_filename, lineno); |
| 241 | else |
| 242 | fprintf (fp, _("built in linker script:%u"), lineno); |
| 243 | break; |
| 244 | |
| 245 | case 'R': |
| 246 | /* Print all that's interesting about a relent */ |
| 247 | { |
| 248 | arelent *relent = va_arg (arg, arelent *); |
| 249 | |
| 250 | lfinfo (fp, "%s+0x%v (type %s)", |
| 251 | (*(relent->sym_ptr_ptr))->name, |
| 252 | relent->addend, |
| 253 | relent->howto->name); |
| 254 | } |
| 255 | break; |
| 256 | |
| 257 | case 'C': |
| 258 | case 'D': |
| 259 | case 'G': |
| 260 | /* Clever filename:linenumber with function name if possible, |
| 261 | or section name as a last resort. The arguments are a BFD, |
| 262 | a section, and an offset. */ |
| 263 | { |
| 264 | static bfd *last_bfd; |
| 265 | static char *last_file = NULL; |
| 266 | static char *last_function = NULL; |
| 267 | bfd *abfd; |
| 268 | asection *section; |
| 269 | bfd_vma offset; |
| 270 | lang_input_statement_type *entry; |
| 271 | asymbol **asymbols; |
| 272 | const char *filename; |
| 273 | const char *functionname; |
| 274 | unsigned int linenumber; |
| 275 | boolean discard_last; |
| 276 | |
| 277 | abfd = va_arg (arg, bfd *); |
| 278 | section = va_arg (arg, asection *); |
| 279 | offset = va_arg (arg, bfd_vma); |
| 280 | |
| 281 | entry = (lang_input_statement_type *) abfd->usrdata; |
| 282 | if (entry != (lang_input_statement_type *) NULL |
| 283 | && entry->asymbols != (asymbol **) NULL) |
| 284 | asymbols = entry->asymbols; |
| 285 | else |
| 286 | { |
| 287 | long symsize; |
| 288 | long symbol_count; |
| 289 | |
| 290 | symsize = bfd_get_symtab_upper_bound (abfd); |
| 291 | if (symsize < 0) |
| 292 | einfo (_("%B%F: could not read symbols\n"), abfd); |
| 293 | asymbols = (asymbol **) xmalloc (symsize); |
| 294 | symbol_count = bfd_canonicalize_symtab (abfd, asymbols); |
| 295 | if (symbol_count < 0) |
| 296 | einfo (_("%B%F: could not read symbols\n"), abfd); |
| 297 | if (entry != (lang_input_statement_type *) NULL) |
| 298 | { |
| 299 | entry->asymbols = asymbols; |
| 300 | entry->symbol_count = symbol_count; |
| 301 | } |
| 302 | } |
| 303 | |
| 304 | discard_last = true; |
| 305 | if (bfd_find_nearest_line (abfd, section, asymbols, offset, |
| 306 | &filename, &functionname, |
| 307 | &linenumber)) |
| 308 | { |
| 309 | if (functionname != NULL && fmt[-1] == 'G') |
| 310 | { |
| 311 | lfinfo (fp, "%B:", abfd); |
| 312 | if (filename != NULL |
| 313 | && strcmp (filename, bfd_get_filename (abfd)) != 0) |
| 314 | fprintf (fp, "%s:", filename); |
| 315 | lfinfo (fp, "%T", functionname); |
| 316 | } |
| 317 | else if (functionname != NULL && fmt[-1] == 'C') |
| 318 | { |
| 319 | if (filename == (char *) NULL) |
| 320 | filename = abfd->filename; |
| 321 | |
| 322 | if (last_bfd == NULL |
| 323 | || last_file == NULL |
| 324 | || last_function == NULL |
| 325 | || last_bfd != abfd |
| 326 | || strcmp (last_file, filename) != 0 |
| 327 | || strcmp (last_function, functionname) != 0) |
| 328 | { |
| 329 | /* We use abfd->filename in this initial line, |
| 330 | in case filename is a .h file or something |
| 331 | similarly unhelpful. */ |
| 332 | lfinfo (fp, _("%B: In function `%T':\n"), |
| 333 | abfd, functionname); |
| 334 | |
| 335 | last_bfd = abfd; |
| 336 | if (last_file != NULL) |
| 337 | free (last_file); |
| 338 | last_file = buystring (filename); |
| 339 | if (last_function != NULL) |
| 340 | free (last_function); |
| 341 | last_function = buystring (functionname); |
| 342 | } |
| 343 | discard_last = false; |
| 344 | if (linenumber != 0) |
| 345 | fprintf (fp, "%s:%u", filename, linenumber); |
| 346 | else |
| 347 | lfinfo (fp, "%s(%s+0x%v)", filename, section->name, |
| 348 | offset); |
| 349 | } |
| 350 | else if (filename == NULL |
| 351 | || strcmp (filename, abfd->filename) == 0) |
| 352 | { |
| 353 | lfinfo (fp, "%B(%s+0x%v)", abfd, section->name, |
| 354 | offset); |
| 355 | if (linenumber != 0) |
| 356 | lfinfo (fp, ":%u", linenumber); |
| 357 | } |
| 358 | else if (linenumber != 0) |
| 359 | lfinfo (fp, "%B:%s:%u", abfd, filename, linenumber); |
| 360 | else |
| 361 | lfinfo (fp, "%B(%s+0x%v):%s", abfd, section->name, |
| 362 | offset, filename); |
| 363 | } |
| 364 | else |
| 365 | lfinfo (fp, "%B(%s+0x%v)", abfd, section->name, offset); |
| 366 | |
| 367 | if (discard_last) |
| 368 | { |
| 369 | last_bfd = NULL; |
| 370 | if (last_file != NULL) |
| 371 | { |
| 372 | free (last_file); |
| 373 | last_file = NULL; |
| 374 | } |
| 375 | if (last_function != NULL) |
| 376 | { |
| 377 | free (last_function); |
| 378 | last_function = NULL; |
| 379 | } |
| 380 | } |
| 381 | } |
| 382 | break; |
| 383 | |
| 384 | case 's': |
| 385 | /* arbitrary string, like printf */ |
| 386 | fprintf (fp, "%s", va_arg (arg, char *)); |
| 387 | break; |
| 388 | |
| 389 | case 'd': |
| 390 | /* integer, like printf */ |
| 391 | fprintf (fp, "%d", va_arg (arg, int)); |
| 392 | break; |
| 393 | |
| 394 | case 'u': |
| 395 | /* unsigned integer, like printf */ |
| 396 | fprintf (fp, "%u", va_arg (arg, unsigned int)); |
| 397 | break; |
| 398 | } |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | if (fatal == true) |
| 403 | xexit(1); |
| 404 | } |
| 405 | |
| 406 | /* Format info message and print on stdout. */ |
| 407 | |
| 408 | /* (You would think this should be called just "info", but then you |
| 409 | would hosed by LynxOS, which defines that name in its libc.) */ |
| 410 | |
| 411 | void |
| 412 | #if USE_STDARG |
| 413 | info_msg (const char *fmt, ...) |
| 414 | #else |
| 415 | info_msg (va_alist) |
| 416 | va_dcl |
| 417 | #endif |
| 418 | { |
| 419 | va_list arg; |
| 420 | |
| 421 | #if ! USE_STDARG |
| 422 | const char *fmt; |
| 423 | |
| 424 | va_start (arg); |
| 425 | fmt = va_arg (arg, const char *); |
| 426 | #else |
| 427 | va_start (arg, fmt); |
| 428 | #endif |
| 429 | |
| 430 | vfinfo (stdout, fmt, arg); |
| 431 | va_end (arg); |
| 432 | } |
| 433 | |
| 434 | /* ('e' for error.) Format info message and print on stderr. */ |
| 435 | |
| 436 | void |
| 437 | #if USE_STDARG |
| 438 | einfo (const char *fmt, ...) |
| 439 | #else |
| 440 | einfo (va_alist) |
| 441 | va_dcl |
| 442 | #endif |
| 443 | { |
| 444 | va_list arg; |
| 445 | |
| 446 | #if ! USE_STDARG |
| 447 | const char *fmt; |
| 448 | |
| 449 | va_start (arg); |
| 450 | fmt = va_arg (arg, const char *); |
| 451 | #else |
| 452 | va_start (arg, fmt); |
| 453 | #endif |
| 454 | |
| 455 | vfinfo (stderr, fmt, arg); |
| 456 | va_end (arg); |
| 457 | } |
| 458 | |
| 459 | void |
| 460 | info_assert (file, line) |
| 461 | const char *file; |
| 462 | unsigned int line; |
| 463 | { |
| 464 | einfo (_("%F%P: internal error %s %d\n"), file, line); |
| 465 | } |
| 466 | |
| 467 | char * |
| 468 | buystring (x) |
| 469 | CONST char *CONST x; |
| 470 | { |
| 471 | size_t l = strlen(x)+1; |
| 472 | char *r = xmalloc(l); |
| 473 | memcpy(r, x,l); |
| 474 | return r; |
| 475 | } |
| 476 | |
| 477 | /* ('m' for map) Format info message and print on map. */ |
| 478 | |
| 479 | void |
| 480 | #if USE_STDARG |
| 481 | minfo (const char *fmt, ...) |
| 482 | #else |
| 483 | minfo (va_alist) |
| 484 | va_dcl |
| 485 | #endif |
| 486 | { |
| 487 | va_list arg; |
| 488 | |
| 489 | #if ! USE_STDARG |
| 490 | const char *fmt; |
| 491 | va_start (arg); |
| 492 | fmt = va_arg (arg, const char *); |
| 493 | #else |
| 494 | va_start (arg, fmt); |
| 495 | #endif |
| 496 | |
| 497 | vfinfo (config.map_file, fmt, arg); |
| 498 | va_end (arg); |
| 499 | } |
| 500 | |
| 501 | void |
| 502 | #if USE_STDARG |
| 503 | lfinfo (FILE *file, const char *fmt, ...) |
| 504 | #else |
| 505 | lfinfo (va_alist) |
| 506 | va_dcl |
| 507 | #endif |
| 508 | { |
| 509 | va_list arg; |
| 510 | |
| 511 | #if ! USE_STDARG |
| 512 | FILE *file; |
| 513 | const char *fmt; |
| 514 | |
| 515 | va_start (arg); |
| 516 | file = va_arg (arg, FILE *); |
| 517 | fmt = va_arg (arg, const char *); |
| 518 | #else |
| 519 | va_start (arg, fmt); |
| 520 | #endif |
| 521 | |
| 522 | vfinfo (file, fmt, arg); |
| 523 | va_end (arg); |
| 524 | } |
| 525 | \f |
| 526 | /* Functions to print the link map. */ |
| 527 | |
| 528 | void |
| 529 | print_space () |
| 530 | { |
| 531 | fprintf (config.map_file, " "); |
| 532 | } |
| 533 | |
| 534 | void |
| 535 | print_nl () |
| 536 | { |
| 537 | fprintf (config.map_file, "\n"); |
| 538 | } |
| 539 | |
| 540 | /* A more or less friendly abort message. In ld.h abort is defined to |
| 541 | call this function. */ |
| 542 | |
| 543 | void |
| 544 | ld_abort (file, line, fn) |
| 545 | const char *file; |
| 546 | int line; |
| 547 | const char *fn; |
| 548 | { |
| 549 | if (fn != NULL) |
| 550 | einfo (_("%P: internal error: aborting at %s line %d in %s\n"), |
| 551 | file, line, fn); |
| 552 | else |
| 553 | einfo (_("%P: internal error: aborting at %s line %d\n"), |
| 554 | file, line); |
| 555 | einfo (_("%P%F: please report this bug\n")); |
| 556 | xexit (1); |
| 557 | } |