1 /* wrstabs.c -- Output stabs debugging information 2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2006, 2007 3 Free Software Foundation, Inc. 4 Written by Ian Lance Taylor <ian@cygnus.com>. 5 6 This file is part of GNU Binutils. 7 8 This program 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 3 of the License, or 11 (at your option) any later version. 12 13 This program 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 this program; if not, write to the Free Software 20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 21 02110-1301, USA. */ 22 23 /* This file contains code which writes out stabs debugging 24 information. */ 25 26 #include "sysdep.h" 27 #include <assert.h> 28 #include "bfd.h" 29 #include "libiberty.h" 30 #include "safe-ctype.h" 31 #include "bucomm.h" 32 #include "debug.h" 33 #include "budbg.h" 34 #include "aout/aout64.h" 35 #include "aout/stab_gnu.h" 36 37 /* The size of a stabs symbol. This presumes 32 bit values. */ 38 39 #define STAB_SYMBOL_SIZE (12) 40 41 /* An entry in a string hash table. */ 42 43 struct string_hash_entry 44 { 45 struct bfd_hash_entry root; 46 /* Next string in this table. */ 47 struct string_hash_entry *next; 48 /* Index in string table. */ 49 long index; 50 /* Size of type if this is a typedef. */ 51 unsigned int size; 52 }; 53 54 /* A string hash table. */ 55 56 struct string_hash_table 57 { 58 struct bfd_hash_table table; 59 }; 60 61 /* The type stack. Each element on the stack is a string. */ 62 63 struct stab_type_stack 64 { 65 /* The next element on the stack. */ 66 struct stab_type_stack *next; 67 /* This element as a string. */ 68 char *string; 69 /* The type index of this element. */ 70 long index; 71 /* The size of the type. */ 72 unsigned int size; 73 /* Whether type string defines a new type. */ 74 bfd_boolean definition; 75 /* String defining struct fields. */ 76 char *fields; 77 /* NULL terminated array of strings defining base classes for a 78 class. */ 79 char **baseclasses; 80 /* String defining class methods. */ 81 char *methods; 82 /* String defining vtable pointer for a class. */ 83 char *vtable; 84 }; 85 86 /* This structure is used to keep track of type indices for tagged 87 types. */ 88 89 struct stab_tag 90 { 91 /* The type index. */ 92 long index; 93 /* The tag name. */ 94 const char *tag; 95 /* The kind of type. This is set to DEBUG_KIND_ILLEGAL when the 96 type is defined. */ 97 enum debug_type_kind kind; 98 /* The size of the struct. */ 99 unsigned int size; 100 }; 101 102 /* We remember various sorts of type indices. They are not related, 103 but, for convenience, we keep all the information in this 104 structure. */ 105 106 struct stab_type_cache 107 { 108 /* The void type index. */ 109 long void_type; 110 /* Signed integer type indices, indexed by size - 1. */ 111 long signed_integer_types[8]; 112 /* Unsigned integer type indices, indexed by size - 1. */ 113 long unsigned_integer_types[8]; 114 /* Floating point types, indexed by size - 1. */ 115 long float_types[16]; 116 /* Pointers to types, indexed by the type index. */ 117 long *pointer_types; 118 size_t pointer_types_alloc; 119 /* Functions returning types, indexed by the type index. */ 120 long *function_types; 121 size_t function_types_alloc; 122 /* References to types, indexed by the type index. */ 123 long *reference_types; 124 size_t reference_types_alloc; 125 /* Struct/union/class type indices, indexed by the struct id. */ 126 struct stab_tag *struct_types; 127 size_t struct_types_alloc; 128 }; 129 130 /* This is the handle passed through debug_write. */ 131 132 struct stab_write_handle 133 { 134 /* The BFD. */ 135 bfd *abfd; 136 /* This buffer holds the symbols. */ 137 bfd_byte *symbols; 138 size_t symbols_size; 139 size_t symbols_alloc; 140 /* This is a list of hash table entries for the strings. */ 141 struct string_hash_entry *strings; 142 /* The last string hash table entry. */ 143 struct string_hash_entry *last_string; 144 /* The size of the strings. */ 145 size_t strings_size; 146 /* This hash table eliminates duplicate strings. */ 147 struct string_hash_table strhash; 148 /* The type stack. */ 149 struct stab_type_stack *type_stack; 150 /* The next type index. */ 151 long type_index; 152 /* The type cache. */ 153 struct stab_type_cache type_cache; 154 /* A mapping from typedef names to type indices. */ 155 struct string_hash_table typedef_hash; 156 /* If this is not -1, it is the offset to the most recent N_SO 157 symbol, and the value of that symbol needs to be set. */ 158 long so_offset; 159 /* If this is not -1, it is the offset to the most recent N_FUN 160 symbol, and the value of that symbol needs to be set. */ 161 long fun_offset; 162 /* The last text section address seen. */ 163 bfd_vma last_text_address; 164 /* The block nesting depth. */ 165 unsigned int nesting; 166 /* The function address. */ 167 bfd_vma fnaddr; 168 /* A pending LBRAC symbol. */ 169 bfd_vma pending_lbrac; 170 /* The current line number file name. */ 171 const char *lineno_filename; 172 }; 173 174 static struct bfd_hash_entry *string_hash_newfunc 175 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 176 static bfd_boolean stab_write_symbol 177 (struct stab_write_handle *, int, int, bfd_vma, const char *); 178 static bfd_boolean stab_push_string 179 (struct stab_write_handle *, const char *, long, bfd_boolean, unsigned int); 180 static bfd_boolean stab_push_defined_type 181 (struct stab_write_handle *, long, unsigned int); 182 static char *stab_pop_type (struct stab_write_handle *); 183 static bfd_boolean stab_modify_type 184 (struct stab_write_handle *, int, unsigned int, long **, size_t *); 185 static long stab_get_struct_index 186 (struct stab_write_handle *, const char *, unsigned int, 187 enum debug_type_kind, unsigned int *); 188 static bfd_boolean stab_class_method_var 189 (struct stab_write_handle *, const char *, enum debug_visibility, 190 bfd_boolean, bfd_boolean, bfd_boolean, bfd_vma, bfd_boolean); 191 static bfd_boolean stab_start_compilation_unit (void *, const char *); 192 static bfd_boolean stab_start_source (void *, const char *); 193 static bfd_boolean stab_empty_type (void *); 194 static bfd_boolean stab_void_type (void *); 195 static bfd_boolean stab_int_type (void *, unsigned int, bfd_boolean); 196 static bfd_boolean stab_float_type (void *, unsigned int); 197 static bfd_boolean stab_complex_type (void *, unsigned int); 198 static bfd_boolean stab_bool_type (void *, unsigned int); 199 static bfd_boolean stab_enum_type 200 (void *, const char *, const char **, bfd_signed_vma *); 201 static bfd_boolean stab_pointer_type (void *); 202 static bfd_boolean stab_function_type (void *, int, bfd_boolean); 203 static bfd_boolean stab_reference_type (void *); 204 static bfd_boolean stab_range_type (void *, bfd_signed_vma, bfd_signed_vma); 205 static bfd_boolean stab_array_type 206 (void *, bfd_signed_vma, bfd_signed_vma, bfd_boolean); 207 static bfd_boolean stab_set_type (void *, bfd_boolean); 208 static bfd_boolean stab_offset_type (void *); 209 static bfd_boolean stab_method_type (void *, bfd_boolean, int, bfd_boolean); 210 static bfd_boolean stab_const_type (void *); 211 static bfd_boolean stab_volatile_type (void *); 212 static bfd_boolean stab_start_struct_type 213 (void *, const char *, unsigned int, bfd_boolean, unsigned int); 214 static bfd_boolean stab_struct_field 215 (void *, const char *, bfd_vma, bfd_vma, enum debug_visibility); 216 static bfd_boolean stab_end_struct_type (void *); 217 static bfd_boolean stab_start_class_type 218 (void *, const char *, unsigned int, bfd_boolean, unsigned int, 219 bfd_boolean, bfd_boolean); 220 static bfd_boolean stab_class_static_member 221 (void *, const char *, const char *, enum debug_visibility); 222 static bfd_boolean stab_class_baseclass 223 (void *, bfd_vma, bfd_boolean, enum debug_visibility); 224 static bfd_boolean stab_class_start_method (void *, const char *); 225 static bfd_boolean stab_class_method_variant 226 (void *, const char *, enum debug_visibility, bfd_boolean, bfd_boolean, 227 bfd_vma, bfd_boolean); 228 static bfd_boolean stab_class_static_method_variant 229 (void *, const char *, enum debug_visibility, bfd_boolean, bfd_boolean); 230 static bfd_boolean stab_class_end_method (void *); 231 static bfd_boolean stab_end_class_type (void *); 232 static bfd_boolean stab_typedef_type (void *, const char *); 233 static bfd_boolean stab_tag_type 234 (void *, const char *, unsigned int, enum debug_type_kind); 235 static bfd_boolean stab_typdef (void *, const char *); 236 static bfd_boolean stab_tag (void *, const char *); 237 static bfd_boolean stab_int_constant (void *, const char *, bfd_vma); 238 static bfd_boolean stab_float_constant (void *, const char *, double); 239 static bfd_boolean stab_typed_constant (void *, const char *, bfd_vma); 240 static bfd_boolean stab_variable 241 (void *, const char *, enum debug_var_kind, bfd_vma); 242 static bfd_boolean stab_start_function (void *, const char *, bfd_boolean); 243 static bfd_boolean stab_function_parameter 244 (void *, const char *, enum debug_parm_kind, bfd_vma); 245 static bfd_boolean stab_start_block (void *, bfd_vma); 246 static bfd_boolean stab_end_block (void *, bfd_vma); 247 static bfd_boolean stab_end_function (void *); 248 static bfd_boolean stab_lineno (void *, const char *, unsigned long, bfd_vma); 249 250 static const struct debug_write_fns stab_fns = 251 { 252 stab_start_compilation_unit, 253 stab_start_source, 254 stab_empty_type, 255 stab_void_type, 256 stab_int_type, 257 stab_float_type, 258 stab_complex_type, 259 stab_bool_type, 260 stab_enum_type, 261 stab_pointer_type, 262 stab_function_type, 263 stab_reference_type, 264 stab_range_type, 265 stab_array_type, 266 stab_set_type, 267 stab_offset_type, 268 stab_method_type, 269 stab_const_type, 270 stab_volatile_type, 271 stab_start_struct_type, 272 stab_struct_field, 273 stab_end_struct_type, 274 stab_start_class_type, 275 stab_class_static_member, 276 stab_class_baseclass, 277 stab_class_start_method, 278 stab_class_method_variant, 279 stab_class_static_method_variant, 280 stab_class_end_method, 281 stab_end_class_type, 282 stab_typedef_type, 283 stab_tag_type, 284 stab_typdef, 285 stab_tag, 286 stab_int_constant, 287 stab_float_constant, 288 stab_typed_constant, 289 stab_variable, 290 stab_start_function, 291 stab_function_parameter, 292 stab_start_block, 293 stab_end_block, 294 stab_end_function, 295 stab_lineno 296 }; 297 298 /* Routine to create an entry in a string hash table. */ 299 300 static struct bfd_hash_entry * 301 string_hash_newfunc (struct bfd_hash_entry *entry, 302 struct bfd_hash_table *table, const char *string) 303 { 304 struct string_hash_entry *ret = (struct string_hash_entry *) entry; 305 306 /* Allocate the structure if it has not already been allocated by a 307 subclass. */ 308 if (ret == (struct string_hash_entry *) NULL) 309 ret = ((struct string_hash_entry *) 310 bfd_hash_allocate (table, sizeof (struct string_hash_entry))); 311 if (ret == (struct string_hash_entry *) NULL) 312 return NULL; 313 314 /* Call the allocation method of the superclass. */ 315 ret = ((struct string_hash_entry *) 316 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); 317 318 if (ret) 319 { 320 /* Initialize the local fields. */ 321 ret->next = NULL; 322 ret->index = -1; 323 ret->size = 0; 324 } 325 326 return (struct bfd_hash_entry *) ret; 327 } 328 329 /* Look up an entry in a string hash table. */ 330 331 #define string_hash_lookup(t, string, create, copy) \ 332 ((struct string_hash_entry *) \ 333 bfd_hash_lookup (&(t)->table, (string), (create), (copy))) 334 335 /* Add a symbol to the stabs debugging information we are building. */ 336 337 static bfd_boolean 338 stab_write_symbol (struct stab_write_handle *info, int type, int desc, 339 bfd_vma value, const char *string) 340 { 341 bfd_size_type strx; 342 bfd_byte sym[STAB_SYMBOL_SIZE]; 343 344 if (string == NULL) 345 strx = 0; 346 else 347 { 348 struct string_hash_entry *h; 349 350 h = string_hash_lookup (&info->strhash, string, TRUE, TRUE); 351 if (h == NULL) 352 { 353 non_fatal (_("string_hash_lookup failed: %s"), 354 bfd_errmsg (bfd_get_error ())); 355 return FALSE; 356 } 357 if (h->index != -1) 358 strx = h->index; 359 else 360 { 361 strx = info->strings_size; 362 h->index = strx; 363 if (info->last_string == NULL) 364 info->strings = h; 365 else 366 info->last_string->next = h; 367 info->last_string = h; 368 info->strings_size += strlen (string) + 1; 369 } 370 } 371 372 /* This presumes 32 bit values. */ 373 bfd_put_32 (info->abfd, strx, sym); 374 bfd_put_8 (info->abfd, type, sym + 4); 375 bfd_put_8 (info->abfd, 0, sym + 5); 376 bfd_put_16 (info->abfd, desc, sym + 6); 377 bfd_put_32 (info->abfd, value, sym + 8); 378 379 if (info->symbols_size + STAB_SYMBOL_SIZE > info->symbols_alloc) 380 { 381 info->symbols_alloc *= 2; 382 info->symbols = (bfd_byte *) xrealloc (info->symbols, 383 info->symbols_alloc); 384 } 385 386 memcpy (info->symbols + info->symbols_size, sym, STAB_SYMBOL_SIZE); 387 388 info->symbols_size += STAB_SYMBOL_SIZE; 389 390 return TRUE; 391 } 392 393 /* Push a string on to the type stack. */ 394 395 static bfd_boolean 396 stab_push_string (struct stab_write_handle *info, const char *string, 397 long index, bfd_boolean definition, unsigned int size) 398 { 399 struct stab_type_stack *s; 400 401 s = (struct stab_type_stack *) xmalloc (sizeof *s); 402 s->string = xstrdup (string); 403 s->index = index; 404 s->definition = definition; 405 s->size = size; 406 407 s->fields = NULL; 408 s->baseclasses = NULL; 409 s->methods = NULL; 410 s->vtable = NULL; 411 412 s->next = info->type_stack; 413 info->type_stack = s; 414 415 return TRUE; 416 } 417 418 /* Push a type index which has already been defined. */ 419 420 static bfd_boolean 421 stab_push_defined_type (struct stab_write_handle *info, long index, 422 unsigned int size) 423 { 424 char buf[20]; 425 426 sprintf (buf, "%ld", index); 427 return stab_push_string (info, buf, index, FALSE, size); 428 } 429 430 /* Pop a type off the type stack. The caller is responsible for 431 freeing the string. */ 432 433 static char * 434 stab_pop_type (struct stab_write_handle *info) 435 { 436 struct stab_type_stack *s; 437 char *ret; 438 439 s = info->type_stack; 440 assert (s != NULL); 441 442 info->type_stack = s->next; 443 444 ret = s->string; 445 446 free (s); 447 448 return ret; 449 } 450 451 /* The general routine to write out stabs in sections debugging 452 information. This accumulates the stabs symbols and the strings in 453 two obstacks. We can't easily write out the information as we go 454 along, because we need to know the section sizes before we can 455 write out the section contents. ABFD is the BFD and DHANDLE is the 456 handle for the debugging information. This sets *PSYMS to point to 457 the symbols, *PSYMSIZE the size of the symbols, *PSTRINGS to the 458 strings, and *PSTRINGSIZE to the size of the strings. */ 459 460 bfd_boolean 461 write_stabs_in_sections_debugging_info (bfd *abfd, void *dhandle, 462 bfd_byte **psyms, 463 bfd_size_type *psymsize, 464 bfd_byte **pstrings, 465 bfd_size_type *pstringsize) 466 { 467 struct stab_write_handle info; 468 struct string_hash_entry *h; 469 bfd_byte *p; 470 471 info.abfd = abfd; 472 473 info.symbols_size = 0; 474 info.symbols_alloc = 500; 475 info.symbols = (bfd_byte *) xmalloc (info.symbols_alloc); 476 477 info.strings = NULL; 478 info.last_string = NULL; 479 /* Reserve 1 byte for a null byte. */ 480 info.strings_size = 1; 481 482 if (!bfd_hash_table_init (&info.strhash.table, string_hash_newfunc, 483 sizeof (struct string_hash_entry)) 484 || !bfd_hash_table_init (&info.typedef_hash.table, string_hash_newfunc, 485 sizeof (struct string_hash_entry))) 486 { 487 non_fatal ("bfd_hash_table_init_failed: %s", 488 bfd_errmsg (bfd_get_error ())); 489 return FALSE; 490 } 491 492 info.type_stack = NULL; 493 info.type_index = 1; 494 memset (&info.type_cache, 0, sizeof info.type_cache); 495 info.so_offset = -1; 496 info.fun_offset = -1; 497 info.last_text_address = 0; 498 info.nesting = 0; 499 info.fnaddr = 0; 500 info.pending_lbrac = (bfd_vma) -1; 501 502 /* The initial symbol holds the string size. */ 503 if (! stab_write_symbol (&info, 0, 0, 0, (const char *) NULL)) 504 return FALSE; 505 506 /* Output an initial N_SO symbol. */ 507 info.so_offset = info.symbols_size; 508 if (! stab_write_symbol (&info, N_SO, 0, 0, bfd_get_filename (abfd))) 509 return FALSE; 510 511 if (! debug_write (dhandle, &stab_fns, (void *) &info)) 512 return FALSE; 513 514 assert (info.pending_lbrac == (bfd_vma) -1); 515 516 /* Output a trailing N_SO. */ 517 if (! stab_write_symbol (&info, N_SO, 0, info.last_text_address, 518 (const char *) NULL)) 519 return FALSE; 520 521 /* Put the string size in the initial symbol. */ 522 bfd_put_32 (abfd, info.strings_size, info.symbols + 8); 523 524 *psyms = info.symbols; 525 *psymsize = info.symbols_size; 526 527 *pstringsize = info.strings_size; 528 *pstrings = (bfd_byte *) xmalloc (info.strings_size); 529 530 p = *pstrings; 531 *p++ = '\0'; 532 for (h = info.strings; h != NULL; h = h->next) 533 { 534 strcpy ((char *) p, h->root.string); 535 p += strlen ((char *) p) + 1; 536 } 537 538 return TRUE; 539 } 540 541 /* Start writing out information for a compilation unit. */ 542 543 static bfd_boolean 544 stab_start_compilation_unit (void *p, const char *filename) 545 { 546 struct stab_write_handle *info = (struct stab_write_handle *) p; 547 548 /* We would normally output an N_SO symbol here. However, that 549 would force us to reset all of our type information. I think we 550 will be better off just outputting an N_SOL symbol, and not 551 worrying about splitting information between files. */ 552 553 info->lineno_filename = filename; 554 555 return stab_write_symbol (info, N_SOL, 0, 0, filename); 556 } 557 558 /* Start writing out information for a particular source file. */ 559 560 static bfd_boolean 561 stab_start_source (void *p, const char *filename) 562 { 563 struct stab_write_handle *info = (struct stab_write_handle *) p; 564 565 /* FIXME: The symbol's value is supposed to be the text section 566 address. However, we would have to fill it in later, and gdb 567 doesn't care, so we don't bother with it. */ 568 569 info->lineno_filename = filename; 570 571 return stab_write_symbol (info, N_SOL, 0, 0, filename); 572 } 573 574 /* Push an empty type. This shouldn't normally happen. We just use a 575 void type. */ 576 577 static bfd_boolean 578 stab_empty_type (void *p) 579 { 580 struct stab_write_handle *info = (struct stab_write_handle *) p; 581 582 /* We don't call stab_void_type if the type is not yet defined, 583 because that might screw up the typedef. */ 584 585 if (info->type_cache.void_type != 0) 586 return stab_push_defined_type (info, info->type_cache.void_type, 0); 587 else 588 { 589 long index; 590 char buf[40]; 591 592 index = info->type_index; 593 ++info->type_index; 594 595 sprintf (buf, "%ld=%ld", index, index); 596 597 return stab_push_string (info, buf, index, FALSE, 0); 598 } 599 } 600 601 /* Push a void type. */ 602 603 static bfd_boolean 604 stab_void_type (void *p) 605 { 606 struct stab_write_handle *info = (struct stab_write_handle *) p; 607 608 if (info->type_cache.void_type != 0) 609 return stab_push_defined_type (info, info->type_cache.void_type, 0); 610 else 611 { 612 long index; 613 char buf[40]; 614 615 index = info->type_index; 616 ++info->type_index; 617 618 info->type_cache.void_type = index; 619 620 sprintf (buf, "%ld=%ld", index, index); 621 622 return stab_push_string (info, buf, index, TRUE, 0); 623 } 624 } 625 626 /* Push an integer type. */ 627 628 static bfd_boolean 629 stab_int_type (void *p, unsigned int size, bfd_boolean unsignedp) 630 { 631 struct stab_write_handle *info = (struct stab_write_handle *) p; 632 long *cache; 633 634 if (size <= 0 || (size > sizeof (long) && size != 8)) 635 { 636 non_fatal (_("stab_int_type: bad size %u"), size); 637 return FALSE; 638 } 639 640 if (unsignedp) 641 cache = info->type_cache.signed_integer_types; 642 else 643 cache = info->type_cache.unsigned_integer_types; 644 645 if (cache[size - 1] != 0) 646 return stab_push_defined_type (info, cache[size - 1], size); 647 else 648 { 649 long index; 650 char buf[100]; 651 652 index = info->type_index; 653 ++info->type_index; 654 655 cache[size - 1] = index; 656 657 sprintf (buf, "%ld=r%ld;", index, index); 658 if (unsignedp) 659 { 660 strcat (buf, "0;"); 661 if (size < sizeof (long)) 662 sprintf (buf + strlen (buf), "%ld;", ((long) 1 << (size * 8)) - 1); 663 else if (size == sizeof (long)) 664 strcat (buf, "-1;"); 665 else if (size == 8) 666 strcat (buf, "01777777777777777777777;"); 667 else 668 abort (); 669 } 670 else 671 { 672 if (size <= sizeof (long)) 673 sprintf (buf + strlen (buf), "%ld;%ld;", 674 (long) - ((unsigned long) 1 << (size * 8 - 1)), 675 (long) (((unsigned long) 1 << (size * 8 - 1)) - 1)); 676 else if (size == 8) 677 strcat (buf, "01000000000000000000000;0777777777777777777777;"); 678 else 679 abort (); 680 } 681 682 return stab_push_string (info, buf, index, TRUE, size); 683 } 684 } 685 686 /* Push a floating point type. */ 687 688 static bfd_boolean 689 stab_float_type (void *p, unsigned int size) 690 { 691 struct stab_write_handle *info = (struct stab_write_handle *) p; 692 693 if (size > 0 694 && size - 1 < (sizeof info->type_cache.float_types 695 / sizeof info->type_cache.float_types[0]) 696 && info->type_cache.float_types[size - 1] != 0) 697 return stab_push_defined_type (info, 698 info->type_cache.float_types[size - 1], 699 size); 700 else 701 { 702 long index; 703 char *int_type; 704 char buf[50]; 705 706 /* Floats are defined as a subrange of int. */ 707 if (! stab_int_type (info, 4, FALSE)) 708 return FALSE; 709 int_type = stab_pop_type (info); 710 711 index = info->type_index; 712 ++info->type_index; 713 714 if (size > 0 715 && size - 1 < (sizeof info->type_cache.float_types 716 / sizeof info->type_cache.float_types[0])) 717 info->type_cache.float_types[size - 1] = index; 718 719 sprintf (buf, "%ld=r%s;%u;0;", index, int_type, size); 720 721 free (int_type); 722 723 return stab_push_string (info, buf, index, TRUE, size); 724 } 725 } 726 727 /* Push a complex type. */ 728 729 static bfd_boolean 730 stab_complex_type (void *p, unsigned int size) 731 { 732 struct stab_write_handle *info = (struct stab_write_handle *) p; 733 char buf[50]; 734 long index; 735 736 index = info->type_index; 737 ++info->type_index; 738 739 sprintf (buf, "%ld=r%ld;%u;0;", index, index, size); 740 741 return stab_push_string (info, buf, index, TRUE, size * 2); 742 } 743 744 /* Push a bfd_boolean type. We use an XCOFF predefined type, since gdb 745 always recognizes them. */ 746 747 static bfd_boolean 748 stab_bool_type (void *p, unsigned int size) 749 { 750 struct stab_write_handle *info = (struct stab_write_handle *) p; 751 long index; 752 753 switch (size) 754 { 755 case 1: 756 index = -21; 757 break; 758 759 case 2: 760 index = -22; 761 break; 762 763 default: 764 case 4: 765 index = -16; 766 break; 767 768 case 8: 769 index = -33; 770 break; 771 } 772 773 return stab_push_defined_type (info, index, size); 774 } 775 776 /* Push an enum type. */ 777 778 static bfd_boolean 779 stab_enum_type (void *p, const char *tag, const char **names, 780 bfd_signed_vma *vals) 781 { 782 struct stab_write_handle *info = (struct stab_write_handle *) p; 783 size_t len; 784 const char **pn; 785 char *buf; 786 long index = 0; 787 bfd_signed_vma *pv; 788 789 if (names == NULL) 790 { 791 assert (tag != NULL); 792 793 buf = (char *) xmalloc (10 + strlen (tag)); 794 sprintf (buf, "xe%s:", tag); 795 /* FIXME: The size is just a guess. */ 796 if (! stab_push_string (info, buf, 0, FALSE, 4)) 797 return FALSE; 798 free (buf); 799 return TRUE; 800 } 801 802 len = 10; 803 if (tag != NULL) 804 len += strlen (tag); 805 for (pn = names; *pn != NULL; pn++) 806 len += strlen (*pn) + 20; 807 808 buf = (char *) xmalloc (len); 809 810 if (tag == NULL) 811 strcpy (buf, "e"); 812 else 813 { 814 index = info->type_index; 815 ++info->type_index; 816 sprintf (buf, "%s:T%ld=e", tag, index); 817 } 818 819 for (pn = names, pv = vals; *pn != NULL; pn++, pv++) 820 sprintf (buf + strlen (buf), "%s:%ld,", *pn, (long) *pv); 821 strcat (buf, ";"); 822 823 if (tag == NULL) 824 { 825 /* FIXME: The size is just a guess. */ 826 if (! stab_push_string (info, buf, 0, FALSE, 4)) 827 return FALSE; 828 } 829 else 830 { 831 /* FIXME: The size is just a guess. */ 832 if (! stab_write_symbol (info, N_LSYM, 0, 0, buf) 833 || ! stab_push_defined_type (info, index, 4)) 834 return FALSE; 835 } 836 837 free (buf); 838 839 return TRUE; 840 } 841 842 /* Push a modification of the top type on the stack. Cache the 843 results in CACHE and CACHE_ALLOC. */ 844 845 static bfd_boolean 846 stab_modify_type (struct stab_write_handle *info, int mod, 847 unsigned int size, long **cache, size_t *cache_alloc) 848 { 849 long targindex; 850 long index; 851 char *s, *buf; 852 853 assert (info->type_stack != NULL); 854 targindex = info->type_stack->index; 855 856 if (targindex <= 0 857 || cache == NULL) 858 { 859 bfd_boolean definition; 860 861 /* Either the target type has no index, or we aren't caching 862 this modifier. Either way we have no way of recording the 863 new type, so we don't bother to define one. */ 864 definition = info->type_stack->definition; 865 s = stab_pop_type (info); 866 buf = (char *) xmalloc (strlen (s) + 2); 867 sprintf (buf, "%c%s", mod, s); 868 free (s); 869 if (! stab_push_string (info, buf, 0, definition, size)) 870 return FALSE; 871 free (buf); 872 } 873 else 874 { 875 if ((size_t) targindex >= *cache_alloc) 876 { 877 size_t alloc; 878 879 alloc = *cache_alloc; 880 if (alloc == 0) 881 alloc = 10; 882 while ((size_t) targindex >= alloc) 883 alloc *= 2; 884 *cache = (long *) xrealloc (*cache, alloc * sizeof (long)); 885 memset (*cache + *cache_alloc, 0, 886 (alloc - *cache_alloc) * sizeof (long)); 887 *cache_alloc = alloc; 888 } 889 890 index = (*cache)[targindex]; 891 if (index != 0 && ! info->type_stack->definition) 892 { 893 /* We have already defined a modification of this type, and 894 the entry on the type stack is not a definition, so we 895 can safely discard it (we may have a definition on the 896 stack, even if we already defined a modification, if it 897 is a struct which we did not define at the time it was 898 referenced). */ 899 free (stab_pop_type (info)); 900 if (! stab_push_defined_type (info, index, size)) 901 return FALSE; 902 } 903 else 904 { 905 index = info->type_index; 906 ++info->type_index; 907 908 s = stab_pop_type (info); 909 buf = (char *) xmalloc (strlen (s) + 20); 910 sprintf (buf, "%ld=%c%s", index, mod, s); 911 free (s); 912 913 (*cache)[targindex] = index; 914 915 if (! stab_push_string (info, buf, index, TRUE, size)) 916 return FALSE; 917 918 free (buf); 919 } 920 } 921 922 return TRUE; 923 } 924 925 /* Push a pointer type. */ 926 927 static bfd_boolean 928 stab_pointer_type (void *p) 929 { 930 struct stab_write_handle *info = (struct stab_write_handle *) p; 931 932 /* FIXME: The size should depend upon the architecture. */ 933 return stab_modify_type (info, '*', 4, &info->type_cache.pointer_types, 934 &info->type_cache.pointer_types_alloc); 935 } 936 937 /* Push a function type. */ 938 939 static bfd_boolean 940 stab_function_type (void *p, int argcount, 941 bfd_boolean varargs ATTRIBUTE_UNUSED) 942 { 943 struct stab_write_handle *info = (struct stab_write_handle *) p; 944 int i; 945 946 /* We have no way to represent the argument types, so we just 947 discard them. However, if they define new types, we must output 948 them. We do this by producing empty typedefs. */ 949 for (i = 0; i < argcount; i++) 950 { 951 if (! info->type_stack->definition) 952 free (stab_pop_type (info)); 953 else 954 { 955 char *s, *buf; 956 957 s = stab_pop_type (info); 958 959 buf = (char *) xmalloc (strlen (s) + 3); 960 sprintf (buf, ":t%s", s); 961 free (s); 962 963 if (! stab_write_symbol (info, N_LSYM, 0, 0, buf)) 964 return FALSE; 965 966 free (buf); 967 } 968 } 969 970 return stab_modify_type (info, 'f', 0, &info->type_cache.function_types, 971 &info->type_cache.function_types_alloc); 972 } 973 974 /* Push a reference type. */ 975 976 static bfd_boolean 977 stab_reference_type (void *p) 978 { 979 struct stab_write_handle *info = (struct stab_write_handle *) p; 980 981 /* FIXME: The size should depend upon the architecture. */ 982 return stab_modify_type (info, '&', 4, &info->type_cache.reference_types, 983 &info->type_cache.reference_types_alloc); 984 } 985 986 /* Push a range type. */ 987 988 static bfd_boolean 989 stab_range_type (void *p, bfd_signed_vma low, bfd_signed_vma high) 990 { 991 struct stab_write_handle *info = (struct stab_write_handle *) p; 992 bfd_boolean definition; 993 unsigned int size; 994 char *s, *buf; 995 996 definition = info->type_stack->definition; 997 size = info->type_stack->size; 998 999 s = stab_pop_type (info); 1000 buf = (char *) xmalloc (strlen (s) + 100); 1001 sprintf (buf, "r%s;%ld;%ld;", s, (long) low, (long) high); 1002 free (s); 1003 1004 if (! stab_push_string (info, buf, 0, definition, size)) 1005 return FALSE; 1006 1007 free (buf); 1008 1009 return TRUE; 1010 } 1011 1012 /* Push an array type. */ 1013 1014 static bfd_boolean 1015 stab_array_type (void *p, bfd_signed_vma low, bfd_signed_vma high, 1016 bfd_boolean stringp) 1017 { 1018 struct stab_write_handle *info = (struct stab_write_handle *) p; 1019 bfd_boolean definition; 1020 unsigned int element_size; 1021 char *range, *element, *buf; 1022 long index; 1023 unsigned int size; 1024 1025 definition = info->type_stack->definition; 1026 range = stab_pop_type (info); 1027 1028 definition = definition || info->type_stack->definition; 1029 element_size = info->type_stack->size; 1030 element = stab_pop_type (info); 1031 1032 buf = (char *) xmalloc (strlen (range) + strlen (element) + 100); 1033 1034 if (! stringp) 1035 { 1036 index = 0; 1037 *buf = '\0'; 1038 } 1039 else 1040 { 1041 /* We need to define a type in order to include the string 1042 attribute. */ 1043 index = info->type_index; 1044 ++info->type_index; 1045 definition = TRUE; 1046 sprintf (buf, "%ld=@S;", index); 1047 } 1048 1049 sprintf (buf + strlen (buf), "ar%s;%ld;%ld;%s", 1050 range, (long) low, (long) high, element); 1051 free (range); 1052 free (element); 1053 1054 if (high < low) 1055 size = 0; 1056 else 1057 size = element_size * ((high - low) + 1); 1058 if (! stab_push_string (info, buf, index, definition, size)) 1059 return FALSE; 1060 1061 free (buf); 1062 1063 return TRUE; 1064 } 1065 1066 /* Push a set type. */ 1067 1068 static bfd_boolean 1069 stab_set_type (void *p, bfd_boolean bitstringp) 1070 { 1071 struct stab_write_handle *info = (struct stab_write_handle *) p; 1072 bfd_boolean definition; 1073 char *s, *buf; 1074 long index; 1075 1076 definition = info->type_stack->definition; 1077 1078 s = stab_pop_type (info); 1079 buf = (char *) xmalloc (strlen (s) + 30); 1080 1081 if (! bitstringp) 1082 { 1083 *buf = '\0'; 1084 index = 0; 1085 } 1086 else 1087 { 1088 /* We need to define a type in order to include the string 1089 attribute. */ 1090 index = info->type_index; 1091 ++info->type_index; 1092 definition = TRUE; 1093 sprintf (buf, "%ld=@S;", index); 1094 } 1095 1096 sprintf (buf + strlen (buf), "S%s", s); 1097 free (s); 1098 1099 if (! stab_push_string (info, buf, index, definition, 0)) 1100 return FALSE; 1101 1102 free (buf); 1103 1104 return TRUE; 1105 } 1106 1107 /* Push an offset type. */ 1108 1109 static bfd_boolean 1110 stab_offset_type (void *p) 1111 { 1112 struct stab_write_handle *info = (struct stab_write_handle *) p; 1113 bfd_boolean definition; 1114 char *target, *base, *buf; 1115 1116 definition = info->type_stack->definition; 1117 target = stab_pop_type (info); 1118 1119 definition = definition || info->type_stack->definition; 1120 base = stab_pop_type (info); 1121 1122 buf = (char *) xmalloc (strlen (target) + strlen (base) + 3); 1123 sprintf (buf, "@%s,%s", base, target); 1124 free (base); 1125 free (target); 1126 1127 if (! stab_push_string (info, buf, 0, definition, 0)) 1128 return FALSE; 1129 1130 free (buf); 1131 1132 return TRUE; 1133 } 1134 1135 /* Push a method type. */ 1136 1137 static bfd_boolean 1138 stab_method_type (void *p, bfd_boolean domainp, int argcount, 1139 bfd_boolean varargs) 1140 { 1141 struct stab_write_handle *info = (struct stab_write_handle *) p; 1142 bfd_boolean definition; 1143 char *domain, *return_type, *buf; 1144 char **args; 1145 int i; 1146 size_t len; 1147 1148 /* We don't bother with stub method types, because that would 1149 require a mangler for C++ argument types. This will waste space 1150 in the debugging output. */ 1151 1152 /* We need a domain. I'm not sure DOMAINP can ever be false, 1153 anyhow. */ 1154 if (! domainp) 1155 { 1156 if (! stab_empty_type (p)) 1157 return FALSE; 1158 } 1159 1160 definition = info->type_stack->definition; 1161 domain = stab_pop_type (info); 1162 1163 /* A non-varargs function is indicated by making the last parameter 1164 type be void. */ 1165 1166 if (argcount < 0) 1167 { 1168 args = NULL; 1169 argcount = 0; 1170 } 1171 else if (argcount == 0) 1172 { 1173 if (varargs) 1174 args = NULL; 1175 else 1176 { 1177 args = (char **) xmalloc (1 * sizeof (*args)); 1178 if (! stab_empty_type (p)) 1179 return FALSE; 1180 definition = definition || info->type_stack->definition; 1181 args[0] = stab_pop_type (info); 1182 argcount = 1; 1183 } 1184 } 1185 else 1186 { 1187 args = (char **) xmalloc ((argcount + 1) * sizeof (*args)); 1188 for (i = argcount - 1; i >= 0; i--) 1189 { 1190 definition = definition || info->type_stack->definition; 1191 args[i] = stab_pop_type (info); 1192 } 1193 if (! varargs) 1194 { 1195 if (! stab_empty_type (p)) 1196 return FALSE; 1197 definition = definition || info->type_stack->definition; 1198 args[argcount] = stab_pop_type (info); 1199 ++argcount; 1200 } 1201 } 1202 1203 definition = definition || info->type_stack->definition; 1204 return_type = stab_pop_type (info); 1205 1206 len = strlen (domain) + strlen (return_type) + 10; 1207 for (i = 0; i < argcount; i++) 1208 len += strlen (args[i]); 1209 1210 buf = (char *) xmalloc (len); 1211 1212 sprintf (buf, "#%s,%s", domain, return_type); 1213 free (domain); 1214 free (return_type); 1215 for (i = 0; i < argcount; i++) 1216 { 1217 strcat (buf, ","); 1218 strcat (buf, args[i]); 1219 free (args[i]); 1220 } 1221 strcat (buf, ";"); 1222 1223 if (args != NULL) 1224 free (args); 1225 1226 if (! stab_push_string (info, buf, 0, definition, 0)) 1227 return FALSE; 1228 1229 free (buf); 1230 1231 return TRUE; 1232 } 1233 1234 /* Push a const version of a type. */ 1235 1236 static bfd_boolean 1237 stab_const_type (void *p) 1238 { 1239 struct stab_write_handle *info = (struct stab_write_handle *) p; 1240 1241 return stab_modify_type (info, 'k', info->type_stack->size, 1242 (long **) NULL, (size_t *) NULL); 1243 } 1244 1245 /* Push a volatile version of a type. */ 1246 1247 static bfd_boolean 1248 stab_volatile_type (void *p) 1249 { 1250 struct stab_write_handle *info = (struct stab_write_handle *) p; 1251 1252 return stab_modify_type (info, 'B', info->type_stack->size, 1253 (long **) NULL, (size_t *) NULL); 1254 } 1255 1256 /* Get the type index to use for a struct/union/class ID. This should 1257 return -1 if it fails. */ 1258 1259 static long 1260 stab_get_struct_index (struct stab_write_handle *info, const char *tag, 1261 unsigned int id, enum debug_type_kind kind, 1262 unsigned int *psize) 1263 { 1264 if (id >= info->type_cache.struct_types_alloc) 1265 { 1266 size_t alloc; 1267 1268 alloc = info->type_cache.struct_types_alloc; 1269 if (alloc == 0) 1270 alloc = 10; 1271 while (id >= alloc) 1272 alloc *= 2; 1273 info->type_cache.struct_types = 1274 (struct stab_tag *) xrealloc (info->type_cache.struct_types, 1275 alloc * sizeof (struct stab_tag)); 1276 memset ((info->type_cache.struct_types 1277 + info->type_cache.struct_types_alloc), 1278 0, 1279 ((alloc - info->type_cache.struct_types_alloc) 1280 * sizeof (struct stab_tag))); 1281 info->type_cache.struct_types_alloc = alloc; 1282 } 1283 1284 if (info->type_cache.struct_types[id].index == 0) 1285 { 1286 info->type_cache.struct_types[id].index = info->type_index; 1287 ++info->type_index; 1288 info->type_cache.struct_types[id].tag = tag; 1289 info->type_cache.struct_types[id].kind = kind; 1290 } 1291 1292 if (kind == DEBUG_KIND_ILLEGAL) 1293 { 1294 /* This is a definition of the struct. */ 1295 info->type_cache.struct_types[id].kind = kind; 1296 info->type_cache.struct_types[id].size = *psize; 1297 } 1298 else 1299 *psize = info->type_cache.struct_types[id].size; 1300 1301 return info->type_cache.struct_types[id].index; 1302 } 1303 1304 /* Start outputting a struct. We ignore the tag, and handle it in 1305 stab_tag. */ 1306 1307 static bfd_boolean 1308 stab_start_struct_type (void *p, const char *tag, unsigned int id, 1309 bfd_boolean structp, unsigned int size) 1310 { 1311 struct stab_write_handle *info = (struct stab_write_handle *) p; 1312 long index; 1313 bfd_boolean definition; 1314 char *buf; 1315 1316 buf = (char *) xmalloc (40); 1317 1318 if (id == 0) 1319 { 1320 index = 0; 1321 *buf = '\0'; 1322 definition = FALSE; 1323 } 1324 else 1325 { 1326 index = stab_get_struct_index (info, tag, id, DEBUG_KIND_ILLEGAL, 1327 &size); 1328 if (index < 0) 1329 return FALSE; 1330 sprintf (buf, "%ld=", index); 1331 definition = TRUE; 1332 } 1333 1334 sprintf (buf + strlen (buf), "%c%u", 1335 structp ? 's' : 'u', 1336 size); 1337 1338 if (! stab_push_string (info, buf, index, definition, size)) 1339 return FALSE; 1340 1341 info->type_stack->fields = (char *) xmalloc (1); 1342 info->type_stack->fields[0] = '\0'; 1343 1344 return TRUE; 1345 } 1346 1347 /* Add a field to a struct. */ 1348 1349 static bfd_boolean 1350 stab_struct_field (void *p, const char *name, bfd_vma bitpos, 1351 bfd_vma bitsize, enum debug_visibility visibility) 1352 { 1353 struct stab_write_handle *info = (struct stab_write_handle *) p; 1354 bfd_boolean definition; 1355 unsigned int size; 1356 char *s, *n; 1357 const char *vis; 1358 1359 definition = info->type_stack->definition; 1360 size = info->type_stack->size; 1361 s = stab_pop_type (info); 1362 1363 /* Add this field to the end of the current struct fields, which is 1364 currently on the top of the stack. */ 1365 1366 assert (info->type_stack->fields != NULL); 1367 n = (char *) xmalloc (strlen (info->type_stack->fields) 1368 + strlen (name) 1369 + strlen (s) 1370 + 50); 1371 1372 switch (visibility) 1373 { 1374 default: 1375 abort (); 1376 1377 case DEBUG_VISIBILITY_PUBLIC: 1378 vis = ""; 1379 break; 1380 1381 case DEBUG_VISIBILITY_PRIVATE: 1382 vis = "/0"; 1383 break; 1384 1385 case DEBUG_VISIBILITY_PROTECTED: 1386 vis = "/1"; 1387 break; 1388 } 1389 1390 if (bitsize == 0) 1391 { 1392 bitsize = size * 8; 1393 if (bitsize == 0) 1394 non_fatal (_("%s: warning: unknown size for field `%s' in struct"), 1395 bfd_get_filename (info->abfd), name); 1396 } 1397 1398 sprintf (n, "%s%s:%s%s,%ld,%ld;", info->type_stack->fields, name, vis, s, 1399 (long) bitpos, (long) bitsize); 1400 1401 free (info->type_stack->fields); 1402 info->type_stack->fields = n; 1403 1404 if (definition) 1405 info->type_stack->definition = TRUE; 1406 1407 return TRUE; 1408 } 1409 1410 /* Finish up a struct. */ 1411 1412 static bfd_boolean 1413 stab_end_struct_type (void *p) 1414 { 1415 struct stab_write_handle *info = (struct stab_write_handle *) p; 1416 bfd_boolean definition; 1417 long index; 1418 unsigned int size; 1419 char *fields, *first, *buf; 1420 1421 assert (info->type_stack != NULL && info->type_stack->fields != NULL); 1422 1423 definition = info->type_stack->definition; 1424 index = info->type_stack->index; 1425 size = info->type_stack->size; 1426 fields = info->type_stack->fields; 1427 first = stab_pop_type (info); 1428 1429 buf = (char *) xmalloc (strlen (first) + strlen (fields) + 2); 1430 sprintf (buf, "%s%s;", first, fields); 1431 free (first); 1432 free (fields); 1433 1434 if (! stab_push_string (info, buf, index, definition, size)) 1435 return FALSE; 1436 1437 free (buf); 1438 1439 return TRUE; 1440 } 1441 1442 /* Start outputting a class. */ 1443 1444 static bfd_boolean 1445 stab_start_class_type (void *p, const char *tag, unsigned int id, bfd_boolean structp, unsigned int size, bfd_boolean vptr, bfd_boolean ownvptr) 1446 { 1447 struct stab_write_handle *info = (struct stab_write_handle *) p; 1448 bfd_boolean definition; 1449 char *vstring; 1450 1451 if (! vptr || ownvptr) 1452 { 1453 definition = FALSE; 1454 vstring = NULL; 1455 } 1456 else 1457 { 1458 definition = info->type_stack->definition; 1459 vstring = stab_pop_type (info); 1460 } 1461 1462 if (! stab_start_struct_type (p, tag, id, structp, size)) 1463 return FALSE; 1464 1465 if (vptr) 1466 { 1467 char *vtable; 1468 1469 if (ownvptr) 1470 { 1471 assert (info->type_stack->index > 0); 1472 vtable = (char *) xmalloc (20); 1473 sprintf (vtable, "~%%%ld", info->type_stack->index); 1474 } 1475 else 1476 { 1477 vtable = (char *) xmalloc (strlen (vstring) + 3); 1478 sprintf (vtable, "~%%%s", vstring); 1479 free (vstring); 1480 } 1481 1482 info->type_stack->vtable = vtable; 1483 } 1484 1485 if (definition) 1486 info->type_stack->definition = TRUE; 1487 1488 return TRUE; 1489 } 1490 1491 /* Add a static member to the class on the type stack. */ 1492 1493 static bfd_boolean 1494 stab_class_static_member (void *p, const char *name, const char *physname, 1495 enum debug_visibility visibility) 1496 { 1497 struct stab_write_handle *info = (struct stab_write_handle *) p; 1498 bfd_boolean definition; 1499 char *s, *n; 1500 const char *vis; 1501 1502 definition = info->type_stack->definition; 1503 s = stab_pop_type (info); 1504 1505 /* Add this field to the end of the current struct fields, which is 1506 currently on the top of the stack. */ 1507 1508 assert (info->type_stack->fields != NULL); 1509 n = (char *) xmalloc (strlen (info->type_stack->fields) 1510 + strlen (name) 1511 + strlen (s) 1512 + strlen (physname) 1513 + 10); 1514 1515 switch (visibility) 1516 { 1517 default: 1518 abort (); 1519 1520 case DEBUG_VISIBILITY_PUBLIC: 1521 vis = ""; 1522 break; 1523 1524 case DEBUG_VISIBILITY_PRIVATE: 1525 vis = "/0"; 1526 break; 1527 1528 case DEBUG_VISIBILITY_PROTECTED: 1529 vis = "/1"; 1530 break; 1531 } 1532 1533 sprintf (n, "%s%s:%s%s:%s;", info->type_stack->fields, name, vis, s, 1534 physname); 1535 1536 free (info->type_stack->fields); 1537 info->type_stack->fields = n; 1538 1539 if (definition) 1540 info->type_stack->definition = TRUE; 1541 1542 return TRUE; 1543 } 1544 1545 /* Add a base class to the class on the type stack. */ 1546 1547 static bfd_boolean 1548 stab_class_baseclass (void *p, bfd_vma bitpos, bfd_boolean virtual, 1549 enum debug_visibility visibility) 1550 { 1551 struct stab_write_handle *info = (struct stab_write_handle *) p; 1552 bfd_boolean definition; 1553 char *s; 1554 char *buf; 1555 unsigned int c; 1556 char **baseclasses; 1557 1558 definition = info->type_stack->definition; 1559 s = stab_pop_type (info); 1560 1561 /* Build the base class specifier. */ 1562 1563 buf = (char *) xmalloc (strlen (s) + 25); 1564 buf[0] = virtual ? '1' : '0'; 1565 switch (visibility) 1566 { 1567 default: 1568 abort (); 1569 1570 case DEBUG_VISIBILITY_PRIVATE: 1571 buf[1] = '0'; 1572 break; 1573 1574 case DEBUG_VISIBILITY_PROTECTED: 1575 buf[1] = '1'; 1576 break; 1577 1578 case DEBUG_VISIBILITY_PUBLIC: 1579 buf[1] = '2'; 1580 break; 1581 } 1582 1583 sprintf (buf + 2, "%ld,%s;", (long) bitpos, s); 1584 free (s); 1585 1586 /* Add the new baseclass to the existing ones. */ 1587 1588 assert (info->type_stack != NULL && info->type_stack->fields != NULL); 1589 1590 if (info->type_stack->baseclasses == NULL) 1591 c = 0; 1592 else 1593 { 1594 c = 0; 1595 while (info->type_stack->baseclasses[c] != NULL) 1596 ++c; 1597 } 1598 1599 baseclasses = (char **) xrealloc (info->type_stack->baseclasses, 1600 (c + 2) * sizeof (*baseclasses)); 1601 baseclasses[c] = buf; 1602 baseclasses[c + 1] = NULL; 1603 1604 info->type_stack->baseclasses = baseclasses; 1605 1606 if (definition) 1607 info->type_stack->definition = TRUE; 1608 1609 return TRUE; 1610 } 1611 1612 /* Start adding a method to the class on the type stack. */ 1613 1614 static bfd_boolean 1615 stab_class_start_method (void *p, const char *name) 1616 { 1617 struct stab_write_handle *info = (struct stab_write_handle *) p; 1618 char *m; 1619 1620 assert (info->type_stack != NULL && info->type_stack->fields != NULL); 1621 1622 if (info->type_stack->methods == NULL) 1623 { 1624 m = (char *) xmalloc (strlen (name) + 3); 1625 *m = '\0'; 1626 } 1627 else 1628 { 1629 m = (char *) xrealloc (info->type_stack->methods, 1630 (strlen (info->type_stack->methods) 1631 + strlen (name) 1632 + 4)); 1633 } 1634 1635 sprintf (m + strlen (m), "%s::", name); 1636 1637 info->type_stack->methods = m; 1638 1639 return TRUE; 1640 } 1641 1642 /* Add a variant, either static or not, to the current method. */ 1643 1644 static bfd_boolean 1645 stab_class_method_var (struct stab_write_handle *info, const char *physname, 1646 enum debug_visibility visibility, 1647 bfd_boolean staticp, bfd_boolean constp, 1648 bfd_boolean volatilep, bfd_vma voffset, 1649 bfd_boolean contextp) 1650 { 1651 bfd_boolean definition; 1652 char *type; 1653 char *context = NULL; 1654 char visc, qualc, typec; 1655 1656 definition = info->type_stack->definition; 1657 type = stab_pop_type (info); 1658 1659 if (contextp) 1660 { 1661 definition = definition || info->type_stack->definition; 1662 context = stab_pop_type (info); 1663 } 1664 1665 assert (info->type_stack != NULL && info->type_stack->methods != NULL); 1666 1667 switch (visibility) 1668 { 1669 default: 1670 abort (); 1671 1672 case DEBUG_VISIBILITY_PRIVATE: 1673 visc = '0'; 1674 break; 1675 1676 case DEBUG_VISIBILITY_PROTECTED: 1677 visc = '1'; 1678 break; 1679 1680 case DEBUG_VISIBILITY_PUBLIC: 1681 visc = '2'; 1682 break; 1683 } 1684 1685 if (constp) 1686 { 1687 if (volatilep) 1688 qualc = 'D'; 1689 else 1690 qualc = 'B'; 1691 } 1692 else 1693 { 1694 if (volatilep) 1695 qualc = 'C'; 1696 else 1697 qualc = 'A'; 1698 } 1699 1700 if (staticp) 1701 typec = '?'; 1702 else if (! contextp) 1703 typec = '.'; 1704 else 1705 typec = '*'; 1706 1707 info->type_stack->methods = 1708 (char *) xrealloc (info->type_stack->methods, 1709 (strlen (info->type_stack->methods) 1710 + strlen (type) 1711 + strlen (physname) 1712 + (contextp ? strlen (context) : 0) 1713 + 40)); 1714 1715 sprintf (info->type_stack->methods + strlen (info->type_stack->methods), 1716 "%s:%s;%c%c%c", type, physname, visc, qualc, typec); 1717 free (type); 1718 1719 if (contextp) 1720 { 1721 sprintf (info->type_stack->methods + strlen (info->type_stack->methods), 1722 "%ld;%s;", (long) voffset, context); 1723 free (context); 1724 } 1725 1726 if (definition) 1727 info->type_stack->definition = TRUE; 1728 1729 return TRUE; 1730 } 1731 1732 /* Add a variant to the current method. */ 1733 1734 static bfd_boolean 1735 stab_class_method_variant (void *p, const char *physname, 1736 enum debug_visibility visibility, 1737 bfd_boolean constp, bfd_boolean volatilep, 1738 bfd_vma voffset, bfd_boolean contextp) 1739 { 1740 struct stab_write_handle *info = (struct stab_write_handle *) p; 1741 1742 return stab_class_method_var (info, physname, visibility, FALSE, constp, 1743 volatilep, voffset, contextp); 1744 } 1745 1746 /* Add a static variant to the current method. */ 1747 1748 static bfd_boolean 1749 stab_class_static_method_variant (void *p, const char *physname, 1750 enum debug_visibility visibility, 1751 bfd_boolean constp, bfd_boolean volatilep) 1752 { 1753 struct stab_write_handle *info = (struct stab_write_handle *) p; 1754 1755 return stab_class_method_var (info, physname, visibility, TRUE, constp, 1756 volatilep, 0, FALSE); 1757 } 1758 1759 /* Finish up a method. */ 1760 1761 static bfd_boolean 1762 stab_class_end_method (void *p) 1763 { 1764 struct stab_write_handle *info = (struct stab_write_handle *) p; 1765 1766 assert (info->type_stack != NULL && info->type_stack->methods != NULL); 1767 1768 /* We allocated enough room on info->type_stack->methods to add the 1769 trailing semicolon. */ 1770 strcat (info->type_stack->methods, ";"); 1771 1772 return TRUE; 1773 } 1774 1775 /* Finish up a class. */ 1776 1777 static bfd_boolean 1778 stab_end_class_type (void *p) 1779 { 1780 struct stab_write_handle *info = (struct stab_write_handle *) p; 1781 size_t len; 1782 unsigned int i = 0; 1783 char *buf; 1784 1785 assert (info->type_stack != NULL && info->type_stack->fields != NULL); 1786 1787 /* Work out the size we need to allocate for the class definition. */ 1788 1789 len = (strlen (info->type_stack->string) 1790 + strlen (info->type_stack->fields) 1791 + 10); 1792 if (info->type_stack->baseclasses != NULL) 1793 { 1794 len += 20; 1795 for (i = 0; info->type_stack->baseclasses[i] != NULL; i++) 1796 len += strlen (info->type_stack->baseclasses[i]); 1797 } 1798 if (info->type_stack->methods != NULL) 1799 len += strlen (info->type_stack->methods); 1800 if (info->type_stack->vtable != NULL) 1801 len += strlen (info->type_stack->vtable); 1802 1803 /* Build the class definition. */ 1804 1805 buf = (char *) xmalloc (len); 1806 1807 strcpy (buf, info->type_stack->string); 1808 1809 if (info->type_stack->baseclasses != NULL) 1810 { 1811 sprintf (buf + strlen (buf), "!%u,", i); 1812 for (i = 0; info->type_stack->baseclasses[i] != NULL; i++) 1813 { 1814 strcat (buf, info->type_stack->baseclasses[i]); 1815 free (info->type_stack->baseclasses[i]); 1816 } 1817 free (info->type_stack->baseclasses); 1818 info->type_stack->baseclasses = NULL; 1819 } 1820 1821 strcat (buf, info->type_stack->fields); 1822 free (info->type_stack->fields); 1823 info->type_stack->fields = NULL; 1824 1825 if (info->type_stack->methods != NULL) 1826 { 1827 strcat (buf, info->type_stack->methods); 1828 free (info->type_stack->methods); 1829 info->type_stack->methods = NULL; 1830 } 1831 1832 strcat (buf, ";"); 1833 1834 if (info->type_stack->vtable != NULL) 1835 { 1836 strcat (buf, info->type_stack->vtable); 1837 free (info->type_stack->vtable); 1838 info->type_stack->vtable = NULL; 1839 } 1840 1841 /* Replace the string on the top of the stack with the complete 1842 class definition. */ 1843 free (info->type_stack->string); 1844 info->type_stack->string = buf; 1845 1846 return TRUE; 1847 } 1848 1849 /* Push a typedef which was previously defined. */ 1850 1851 static bfd_boolean 1852 stab_typedef_type (void *p, const char *name) 1853 { 1854 struct stab_write_handle *info = (struct stab_write_handle *) p; 1855 struct string_hash_entry *h; 1856 1857 h = string_hash_lookup (&info->typedef_hash, name, FALSE, FALSE); 1858 assert (h != NULL && h->index > 0); 1859 1860 return stab_push_defined_type (info, h->index, h->size); 1861 } 1862 1863 /* Push a struct, union or class tag. */ 1864 1865 static bfd_boolean 1866 stab_tag_type (void *p, const char *name, unsigned int id, 1867 enum debug_type_kind kind) 1868 { 1869 struct stab_write_handle *info = (struct stab_write_handle *) p; 1870 long index; 1871 unsigned int size = 0; 1872 1873 index = stab_get_struct_index (info, name, id, kind, &size); 1874 if (index < 0) 1875 return FALSE; 1876 1877 return stab_push_defined_type (info, index, size); 1878 } 1879 1880 /* Define a typedef. */ 1881 1882 static bfd_boolean 1883 stab_typdef (void *p, const char *name) 1884 { 1885 struct stab_write_handle *info = (struct stab_write_handle *) p; 1886 long index; 1887 unsigned int size; 1888 char *s, *buf; 1889 struct string_hash_entry *h; 1890 1891 index = info->type_stack->index; 1892 size = info->type_stack->size; 1893 s = stab_pop_type (info); 1894 1895 buf = (char *) xmalloc (strlen (name) + strlen (s) + 20); 1896 1897 if (index > 0) 1898 sprintf (buf, "%s:t%s", name, s); 1899 else 1900 { 1901 index = info->type_index; 1902 ++info->type_index; 1903 sprintf (buf, "%s:t%ld=%s", name, index, s); 1904 } 1905 1906 free (s); 1907 1908 if (! stab_write_symbol (info, N_LSYM, 0, 0, buf)) 1909 return FALSE; 1910 1911 free (buf); 1912 1913 h = string_hash_lookup (&info->typedef_hash, name, TRUE, FALSE); 1914 if (h == NULL) 1915 { 1916 non_fatal (_("string_hash_lookup failed: %s"), 1917 bfd_errmsg (bfd_get_error ())); 1918 return FALSE; 1919 } 1920 1921 /* I don't think we care about redefinitions. */ 1922 1923 h->index = index; 1924 h->size = size; 1925 1926 return TRUE; 1927 } 1928 1929 /* Define a tag. */ 1930 1931 static bfd_boolean 1932 stab_tag (void *p, const char *tag) 1933 { 1934 struct stab_write_handle *info = (struct stab_write_handle *) p; 1935 char *s, *buf; 1936 1937 s = stab_pop_type (info); 1938 1939 buf = (char *) xmalloc (strlen (tag) + strlen (s) + 3); 1940 1941 sprintf (buf, "%s:T%s", tag, s); 1942 free (s); 1943 1944 if (! stab_write_symbol (info, N_LSYM, 0, 0, buf)) 1945 return FALSE; 1946 1947 free (buf); 1948 1949 return TRUE; 1950 } 1951 1952 /* Define an integer constant. */ 1953 1954 static bfd_boolean 1955 stab_int_constant (void *p, const char *name, bfd_vma val) 1956 { 1957 struct stab_write_handle *info = (struct stab_write_handle *) p; 1958 char *buf; 1959 1960 buf = (char *) xmalloc (strlen (name) + 20); 1961 sprintf (buf, "%s:c=i%ld", name, (long) val); 1962 1963 if (! stab_write_symbol (info, N_LSYM, 0, 0, buf)) 1964 return FALSE; 1965 1966 free (buf); 1967 1968 return TRUE; 1969 } 1970 1971 /* Define a floating point constant. */ 1972 1973 static bfd_boolean 1974 stab_float_constant (void *p, const char *name, double val) 1975 { 1976 struct stab_write_handle *info = (struct stab_write_handle *) p; 1977 char *buf; 1978 1979 buf = (char *) xmalloc (strlen (name) + 20); 1980 sprintf (buf, "%s:c=f%g", name, val); 1981 1982 if (! stab_write_symbol (info, N_LSYM, 0, 0, buf)) 1983 return FALSE; 1984 1985 free (buf); 1986 1987 return TRUE; 1988 } 1989 1990 /* Define a typed constant. */ 1991 1992 static bfd_boolean 1993 stab_typed_constant (void *p, const char *name, bfd_vma val) 1994 { 1995 struct stab_write_handle *info = (struct stab_write_handle *) p; 1996 char *s, *buf; 1997 1998 s = stab_pop_type (info); 1999 2000 buf = (char *) xmalloc (strlen (name) + strlen (s) + 20); 2001 sprintf (buf, "%s:c=e%s,%ld", name, s, (long) val); 2002 free (s); 2003 2004 if (! stab_write_symbol (info, N_LSYM, 0, 0, buf)) 2005 return FALSE; 2006 2007 free (buf); 2008 2009 return TRUE; 2010 } 2011 2012 /* Record a variable. */ 2013 2014 static bfd_boolean 2015 stab_variable (void *p, const char *name, enum debug_var_kind kind, 2016 bfd_vma val) 2017 { 2018 struct stab_write_handle *info = (struct stab_write_handle *) p; 2019 char *s, *buf; 2020 int stab_type; 2021 const char *kindstr; 2022 2023 s = stab_pop_type (info); 2024 2025 switch (kind) 2026 { 2027 default: 2028 abort (); 2029 2030 case DEBUG_GLOBAL: 2031 stab_type = N_GSYM; 2032 kindstr = "G"; 2033 break; 2034 2035 case DEBUG_STATIC: 2036 stab_type = N_STSYM; 2037 kindstr = "S"; 2038 break; 2039 2040 case DEBUG_LOCAL_STATIC: 2041 stab_type = N_STSYM; 2042 kindstr = "V"; 2043 break; 2044 2045 case DEBUG_LOCAL: 2046 stab_type = N_LSYM; 2047 kindstr = ""; 2048 2049 /* Make sure that this is a type reference or definition. */ 2050 if (! ISDIGIT (*s)) 2051 { 2052 char *n; 2053 long index; 2054 2055 index = info->type_index; 2056 ++info->type_index; 2057 n = (char *) xmalloc (strlen (s) + 20); 2058 sprintf (n, "%ld=%s", index, s); 2059 free (s); 2060 s = n; 2061 } 2062 break; 2063 2064 case DEBUG_REGISTER: 2065 stab_type = N_RSYM; 2066 kindstr = "r"; 2067 break; 2068 } 2069 2070 buf = (char *) xmalloc (strlen (name) + strlen (s) + 3); 2071 sprintf (buf, "%s:%s%s", name, kindstr, s); 2072 free (s); 2073 2074 if (! stab_write_symbol (info, stab_type, 0, val, buf)) 2075 return FALSE; 2076 2077 free (buf); 2078 2079 return TRUE; 2080 } 2081 2082 /* Start outputting a function. */ 2083 2084 static bfd_boolean 2085 stab_start_function (void *p, const char *name, bfd_boolean globalp) 2086 { 2087 struct stab_write_handle *info = (struct stab_write_handle *) p; 2088 char *rettype, *buf; 2089 2090 assert (info->nesting == 0 && info->fun_offset == -1); 2091 2092 rettype = stab_pop_type (info); 2093 2094 buf = (char *) xmalloc (strlen (name) + strlen (rettype) + 3); 2095 sprintf (buf, "%s:%c%s", name, 2096 globalp ? 'F' : 'f', 2097 rettype); 2098 2099 /* We don't know the value now, so we set it in start_block. */ 2100 info->fun_offset = info->symbols_size; 2101 2102 if (! stab_write_symbol (info, N_FUN, 0, 0, buf)) 2103 return FALSE; 2104 2105 free (buf); 2106 2107 return TRUE; 2108 } 2109 2110 /* Output a function parameter. */ 2111 2112 static bfd_boolean 2113 stab_function_parameter (void *p, const char *name, enum debug_parm_kind kind, bfd_vma val) 2114 { 2115 struct stab_write_handle *info = (struct stab_write_handle *) p; 2116 char *s, *buf; 2117 int stab_type; 2118 char kindc; 2119 2120 s = stab_pop_type (info); 2121 2122 switch (kind) 2123 { 2124 default: 2125 abort (); 2126 2127 case DEBUG_PARM_STACK: 2128 stab_type = N_PSYM; 2129 kindc = 'p'; 2130 break; 2131 2132 case DEBUG_PARM_REG: 2133 stab_type = N_RSYM; 2134 kindc = 'P'; 2135 break; 2136 2137 case DEBUG_PARM_REFERENCE: 2138 stab_type = N_PSYM; 2139 kindc = 'v'; 2140 break; 2141 2142 case DEBUG_PARM_REF_REG: 2143 stab_type = N_RSYM; 2144 kindc = 'a'; 2145 break; 2146 } 2147 2148 buf = (char *) xmalloc (strlen (name) + strlen (s) + 3); 2149 sprintf (buf, "%s:%c%s", name, kindc, s); 2150 free (s); 2151 2152 if (! stab_write_symbol (info, stab_type, 0, val, buf)) 2153 return FALSE; 2154 2155 free (buf); 2156 2157 return TRUE; 2158 } 2159 2160 /* Start a block. */ 2161 2162 static bfd_boolean 2163 stab_start_block (void *p, bfd_vma addr) 2164 { 2165 struct stab_write_handle *info = (struct stab_write_handle *) p; 2166 2167 /* Fill in any slots which have been waiting for the first known 2168 text address. */ 2169 2170 if (info->so_offset != -1) 2171 { 2172 bfd_put_32 (info->abfd, addr, info->symbols + info->so_offset + 8); 2173 info->so_offset = -1; 2174 } 2175 2176 if (info->fun_offset != -1) 2177 { 2178 bfd_put_32 (info->abfd, addr, info->symbols + info->fun_offset + 8); 2179 info->fun_offset = -1; 2180 } 2181 2182 ++info->nesting; 2183 2184 /* We will be called with a top level block surrounding the 2185 function, but stabs information does not output that block, so we 2186 ignore it. */ 2187 2188 if (info->nesting == 1) 2189 { 2190 info->fnaddr = addr; 2191 return TRUE; 2192 } 2193 2194 /* We have to output the LBRAC symbol after any variables which are 2195 declared inside the block. We postpone the LBRAC until the next 2196 start_block or end_block. */ 2197 2198 /* If we have postponed an LBRAC, output it now. */ 2199 if (info->pending_lbrac != (bfd_vma) -1) 2200 { 2201 if (! stab_write_symbol (info, N_LBRAC, 0, info->pending_lbrac, 2202 (const char *) NULL)) 2203 return FALSE; 2204 } 2205 2206 /* Remember the address and output it later. */ 2207 2208 info->pending_lbrac = addr - info->fnaddr; 2209 2210 return TRUE; 2211 } 2212 2213 /* End a block. */ 2214 2215 static bfd_boolean 2216 stab_end_block (void *p, bfd_vma addr) 2217 { 2218 struct stab_write_handle *info = (struct stab_write_handle *) p; 2219 2220 if (addr > info->last_text_address) 2221 info->last_text_address = addr; 2222 2223 /* If we have postponed an LBRAC, output it now. */ 2224 if (info->pending_lbrac != (bfd_vma) -1) 2225 { 2226 if (! stab_write_symbol (info, N_LBRAC, 0, info->pending_lbrac, 2227 (const char *) NULL)) 2228 return FALSE; 2229 info->pending_lbrac = (bfd_vma) -1; 2230 } 2231 2232 assert (info->nesting > 0); 2233 2234 --info->nesting; 2235 2236 /* We ignore the outermost block. */ 2237 if (info->nesting == 0) 2238 return TRUE; 2239 2240 return stab_write_symbol (info, N_RBRAC, 0, addr - info->fnaddr, 2241 (const char *) NULL); 2242 } 2243 2244 /* End a function. */ 2245 2246 static bfd_boolean 2247 stab_end_function (void *p ATTRIBUTE_UNUSED) 2248 { 2249 return TRUE; 2250 } 2251 2252 /* Output a line number. */ 2253 2254 static bfd_boolean 2255 stab_lineno (void *p, const char *file, unsigned long lineno, bfd_vma addr) 2256 { 2257 struct stab_write_handle *info = (struct stab_write_handle *) p; 2258 2259 assert (info->lineno_filename != NULL); 2260 2261 if (addr > info->last_text_address) 2262 info->last_text_address = addr; 2263 2264 if (strcmp (file, info->lineno_filename) != 0) 2265 { 2266 if (! stab_write_symbol (info, N_SOL, 0, addr, file)) 2267 return FALSE; 2268 info->lineno_filename = file; 2269 } 2270 2271 return stab_write_symbol (info, N_SLINE, lineno, addr - info->fnaddr, 2272 (const char *) NULL); 2273 } 2274