1/* wrstabs.c -- Output stabs debugging information 2 Copyright (C) 1996-2017 Free Software Foundation, Inc. 3 Written by Ian Lance Taylor <ian@cygnus.com>. 4 5 This file is part of GNU Binutils. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 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. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 20 02110-1301, USA. */ 21 22/* This file contains code which writes out stabs debugging 23 information. */ 24 25#include "sysdep.h" 26#include <assert.h> 27#include "bfd.h" 28#include "libiberty.h" 29#include "filenames.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 43struct 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 56struct 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 63struct 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 89struct 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 106struct 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 132struct 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 174static struct bfd_hash_entry *string_hash_newfunc 175 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 176static bfd_boolean stab_write_symbol 177 (struct stab_write_handle *, int, int, bfd_vma, const char *); 178static bfd_boolean stab_push_string 179 (struct stab_write_handle *, const char *, long, bfd_boolean, unsigned int); 180static bfd_boolean stab_push_defined_type 181 (struct stab_write_handle *, long, unsigned int); 182static char *stab_pop_type (struct stab_write_handle *); 183static bfd_boolean stab_modify_type 184 (struct stab_write_handle *, int, unsigned int, long **, size_t *); 185static long stab_get_struct_index 186 (struct stab_write_handle *, const char *, unsigned int, 187 enum debug_type_kind, unsigned int *); 188static 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); 191static bfd_boolean stab_start_compilation_unit (void *, const char *); 192static bfd_boolean stab_start_source (void *, const char *); 193static bfd_boolean stab_empty_type (void *); 194static bfd_boolean stab_void_type (void *); 195static bfd_boolean stab_int_type (void *, unsigned int, bfd_boolean); 196static bfd_boolean stab_float_type (void *, unsigned int); 197static bfd_boolean stab_complex_type (void *, unsigned int); 198static bfd_boolean stab_bool_type (void *, unsigned int); 199static bfd_boolean stab_enum_type 200 (void *, const char *, const char **, bfd_signed_vma *); 201static bfd_boolean stab_pointer_type (void *); 202static bfd_boolean stab_function_type (void *, int, bfd_boolean); 203static bfd_boolean stab_reference_type (void *); 204static bfd_boolean stab_range_type (void *, bfd_signed_vma, bfd_signed_vma); 205static bfd_boolean stab_array_type 206 (void *, bfd_signed_vma, bfd_signed_vma, bfd_boolean); 207static bfd_boolean stab_set_type (void *, bfd_boolean); 208static bfd_boolean stab_offset_type (void *); 209static bfd_boolean stab_method_type (void *, bfd_boolean, int, bfd_boolean); 210static bfd_boolean stab_const_type (void *); 211static bfd_boolean stab_volatile_type (void *); 212static bfd_boolean stab_start_struct_type 213 (void *, const char *, unsigned int, bfd_boolean, unsigned int); 214static bfd_boolean stab_struct_field 215 (void *, const char *, bfd_vma, bfd_vma, enum debug_visibility); 216static bfd_boolean stab_end_struct_type (void *); 217static bfd_boolean stab_start_class_type 218 (void *, const char *, unsigned int, bfd_boolean, unsigned int, 219 bfd_boolean, bfd_boolean); 220static bfd_boolean stab_class_static_member 221 (void *, const char *, const char *, enum debug_visibility); 222static bfd_boolean stab_class_baseclass 223 (void *, bfd_vma, bfd_boolean, enum debug_visibility); 224static bfd_boolean stab_class_start_method (void *, const char *); 225static bfd_boolean stab_class_method_variant 226 (void *, const char *, enum debug_visibility, bfd_boolean, bfd_boolean, 227 bfd_vma, bfd_boolean); 228static bfd_boolean stab_class_static_method_variant 229 (void *, const char *, enum debug_visibility, bfd_boolean, bfd_boolean); 230static bfd_boolean stab_class_end_method (void *); 231static bfd_boolean stab_end_class_type (void *); 232static bfd_boolean stab_typedef_type (void *, const char *); 233static bfd_boolean stab_tag_type 234 (void *, const char *, unsigned int, enum debug_type_kind); 235static bfd_boolean stab_typdef (void *, const char *); 236static bfd_boolean stab_tag (void *, const char *); 237static bfd_boolean stab_int_constant (void *, const char *, bfd_vma); 238static bfd_boolean stab_float_constant (void *, const char *, double); 239static bfd_boolean stab_typed_constant (void *, const char *, bfd_vma); 240static bfd_boolean stab_variable 241 (void *, const char *, enum debug_var_kind, bfd_vma); 242static bfd_boolean stab_start_function (void *, const char *, bfd_boolean); 243static bfd_boolean stab_function_parameter 244 (void *, const char *, enum debug_parm_kind, bfd_vma); 245static bfd_boolean stab_start_block (void *, bfd_vma); 246static bfd_boolean stab_end_block (void *, bfd_vma); 247static bfd_boolean stab_end_function (void *); 248static bfd_boolean stab_lineno (void *, const char *, unsigned long, bfd_vma); 249 250static 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 300static struct bfd_hash_entry * 301string_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 337static bfd_boolean 338stab_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 395static bfd_boolean 396stab_push_string (struct stab_write_handle *info, const char *string, 397 long tindex, 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 = tindex; 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 420static bfd_boolean 421stab_push_defined_type (struct stab_write_handle *info, long tindex, 422 unsigned int size) 423{ 424 char buf[20]; 425 426 sprintf (buf, "%ld", tindex); 427 return stab_push_string (info, buf, tindex, FALSE, size); 428} 429 430/* Pop a type off the type stack. The caller is responsible for 431 freeing the string. */ 432 433static char * 434stab_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 460bfd_boolean 461write_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 543static bfd_boolean 544stab_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 560static bfd_boolean 561stab_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 577static bfd_boolean 578stab_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 tindex; 590 char buf[40]; 591 592 tindex = info->type_index; 593 ++info->type_index; 594 595 sprintf (buf, "%ld=%ld", tindex, tindex); 596 597 return stab_push_string (info, buf, tindex, FALSE, 0); 598 } 599} 600 601/* Push a void type. */ 602 603static bfd_boolean 604stab_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 tindex; 613 char buf[40]; 614 615 tindex = info->type_index; 616 ++info->type_index; 617 618 info->type_cache.void_type = tindex; 619 620 sprintf (buf, "%ld=%ld", tindex, tindex); 621 622 return stab_push_string (info, buf, tindex, TRUE, 0); 623 } 624} 625 626/* Push an integer type. */ 627 628static bfd_boolean 629stab_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 tindex; 650 char buf[100]; 651 652 tindex = info->type_index; 653 ++info->type_index; 654 655 cache[size - 1] = tindex; 656 657 sprintf (buf, "%ld=r%ld;", tindex, tindex); 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, tindex, TRUE, size); 683 } 684} 685 686/* Push a floating point type. */ 687 688static bfd_boolean 689stab_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 tindex; 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 tindex = 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] = tindex; 718 719 sprintf (buf, "%ld=r%s;%u;0;", tindex, int_type, size); 720 721 free (int_type); 722 723 return stab_push_string (info, buf, tindex, TRUE, size); 724 } 725} 726 727/* Push a complex type. */ 728 729static bfd_boolean 730stab_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 tindex; 735 736 tindex = info->type_index; 737 ++info->type_index; 738 739 sprintf (buf, "%ld=r%ld;%u;0;", tindex, tindex, size); 740 741 return stab_push_string (info, buf, tindex, TRUE, size * 2); 742} 743 744/* Push a bfd_boolean type. We use an XCOFF predefined type, since gdb 745 always recognizes them. */ 746 747static bfd_boolean 748stab_bool_type (void *p, unsigned int size) 749{ 750 struct stab_write_handle *info = (struct stab_write_handle *) p; 751 long tindex; 752 753 switch (size) 754 { 755 case 1: 756 tindex = -21; 757 break; 758 759 case 2: 760 tindex = -22; 761 break; 762 763 default: 764 case 4: 765 tindex = -16; 766 break; 767 768 case 8: 769 tindex = -33; 770 break; 771 } 772 773 return stab_push_defined_type (info, tindex, size); 774} 775 776/* Push an enum type. */ 777 778static bfd_boolean 779stab_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 tindex = 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 tindex = info->type_index; 815 ++info->type_index; 816 sprintf (buf, "%s:T%ld=e", tag, tindex); 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, tindex, 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 845static bfd_boolean 846stab_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 tindex; 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 tindex = (*cache)[targindex]; 891 if (tindex != 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, tindex, size)) 901 return FALSE; 902 } 903 else 904 { 905 tindex = 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", tindex, mod, s); 911 free (s); 912 913 (*cache)[targindex] = tindex; 914 915 if (! stab_push_string (info, buf, tindex, TRUE, size)) 916 return FALSE; 917 918 free (buf); 919 } 920 } 921 922 return TRUE; 923} 924 925/* Push a pointer type. */ 926 927static bfd_boolean 928stab_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 939static bfd_boolean 940stab_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 976static bfd_boolean 977stab_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 988static bfd_boolean 989stab_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 1014static bfd_boolean 1015stab_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 tindex; 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 tindex = 0; 1037 *buf = '\0'; 1038 } 1039 else 1040 { 1041 /* We need to define a type in order to include the string 1042 attribute. */ 1043 tindex = info->type_index; 1044 ++info->type_index; 1045 definition = TRUE; 1046 sprintf (buf, "%ld=@S;", tindex); 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, tindex, definition, size)) 1059 return FALSE; 1060 1061 free (buf); 1062 1063 return TRUE; 1064} 1065 1066/* Push a set type. */ 1067 1068static bfd_boolean 1069stab_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 tindex; 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 tindex = 0; 1085 } 1086 else 1087 { 1088 /* We need to define a type in order to include the string 1089 attribute. */ 1090 tindex = info->type_index; 1091 ++info->type_index; 1092 definition = TRUE; 1093 sprintf (buf, "%ld=@S;", tindex); 1094 } 1095 1096 sprintf (buf + strlen (buf), "S%s", s); 1097 free (s); 1098 1099 if (! stab_push_string (info, buf, tindex, definition, 0)) 1100 return FALSE; 1101 1102 free (buf); 1103 1104 return TRUE; 1105} 1106 1107/* Push an offset type. */ 1108 1109static bfd_boolean 1110stab_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 1137static bfd_boolean 1138stab_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 1236static bfd_boolean 1237stab_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 1247static bfd_boolean 1248stab_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 1259static long 1260stab_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 1307static bfd_boolean 1308stab_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 tindex; 1313 bfd_boolean definition; 1314 char buf[40]; 1315 1316 if (id == 0) 1317 { 1318 tindex = 0; 1319 *buf = '\0'; 1320 definition = FALSE; 1321 } 1322 else 1323 { 1324 tindex = stab_get_struct_index (info, tag, id, DEBUG_KIND_ILLEGAL, 1325 &size); 1326 if (tindex < 0) 1327 return FALSE; 1328 sprintf (buf, "%ld=", tindex); 1329 definition = TRUE; 1330 } 1331 1332 sprintf (buf + strlen (buf), "%c%u", 1333 structp ? 's' : 'u', 1334 size); 1335 1336 if (! stab_push_string (info, buf, tindex, definition, size)) 1337 return FALSE; 1338 1339 info->type_stack->fields = (char *) xmalloc (1); 1340 info->type_stack->fields[0] = '\0'; 1341 1342 return TRUE; 1343} 1344 1345/* Add a field to a struct. */ 1346 1347static bfd_boolean 1348stab_struct_field (void *p, const char *name, bfd_vma bitpos, 1349 bfd_vma bitsize, enum debug_visibility visibility) 1350{ 1351 struct stab_write_handle *info = (struct stab_write_handle *) p; 1352 bfd_boolean definition; 1353 unsigned int size; 1354 char *s, *n; 1355 const char *vis; 1356 1357 definition = info->type_stack->definition; 1358 size = info->type_stack->size; 1359 s = stab_pop_type (info); 1360 1361 /* Add this field to the end of the current struct fields, which is 1362 currently on the top of the stack. */ 1363 1364 assert (info->type_stack->fields != NULL); 1365 n = (char *) xmalloc (strlen (info->type_stack->fields) 1366 + strlen (name) 1367 + strlen (s) 1368 + 50); 1369 1370 switch (visibility) 1371 { 1372 default: 1373 abort (); 1374 1375 case DEBUG_VISIBILITY_PUBLIC: 1376 vis = ""; 1377 break; 1378 1379 case DEBUG_VISIBILITY_PRIVATE: 1380 vis = "/0"; 1381 break; 1382 1383 case DEBUG_VISIBILITY_PROTECTED: 1384 vis = "/1"; 1385 break; 1386 } 1387 1388 if (bitsize == 0) 1389 { 1390 bitsize = size * 8; 1391 if (bitsize == 0) 1392 non_fatal (_("%s: warning: unknown size for field `%s' in struct"), 1393 bfd_get_filename (info->abfd), name); 1394 } 1395 1396 sprintf (n, "%s%s:%s%s,%ld,%ld;", info->type_stack->fields, name, vis, s, 1397 (long) bitpos, (long) bitsize); 1398 1399 free (info->type_stack->fields); 1400 info->type_stack->fields = n; 1401 1402 if (definition) 1403 info->type_stack->definition = TRUE; 1404 1405 return TRUE; 1406} 1407 1408/* Finish up a struct. */ 1409 1410static bfd_boolean 1411stab_end_struct_type (void *p) 1412{ 1413 struct stab_write_handle *info = (struct stab_write_handle *) p; 1414 bfd_boolean definition; 1415 long tindex; 1416 unsigned int size; 1417 char *fields, *first, *buf; 1418 1419 assert (info->type_stack != NULL && info->type_stack->fields != NULL); 1420 1421 definition = info->type_stack->definition; 1422 tindex = info->type_stack->index; 1423 size = info->type_stack->size; 1424 fields = info->type_stack->fields; 1425 first = stab_pop_type (info); 1426 1427 buf = (char *) xmalloc (strlen (first) + strlen (fields) + 2); 1428 sprintf (buf, "%s%s;", first, fields); 1429 free (first); 1430 free (fields); 1431 1432 if (! stab_push_string (info, buf, tindex, definition, size)) 1433 return FALSE; 1434 1435 free (buf); 1436 1437 return TRUE; 1438} 1439 1440/* Start outputting a class. */ 1441 1442static bfd_boolean 1443stab_start_class_type (void *p, const char *tag, unsigned int id, bfd_boolean structp, unsigned int size, bfd_boolean vptr, bfd_boolean ownvptr) 1444{ 1445 struct stab_write_handle *info = (struct stab_write_handle *) p; 1446 bfd_boolean definition; 1447 char *vstring; 1448 1449 if (! vptr || ownvptr) 1450 { 1451 definition = FALSE; 1452 vstring = NULL; 1453 } 1454 else 1455 { 1456 definition = info->type_stack->definition; 1457 vstring = stab_pop_type (info); 1458 } 1459 1460 if (! stab_start_struct_type (p, tag, id, structp, size)) 1461 return FALSE; 1462 1463 if (vptr) 1464 { 1465 char *vtable; 1466 1467 if (ownvptr) 1468 { 1469 assert (info->type_stack->index > 0); 1470 vtable = (char *) xmalloc (20); 1471 sprintf (vtable, "~%%%ld", info->type_stack->index); 1472 } 1473 else 1474 { 1475 vtable = (char *) xmalloc (strlen (vstring) + 3); 1476 sprintf (vtable, "~%%%s", vstring); 1477 free (vstring); 1478 } 1479 1480 info->type_stack->vtable = vtable; 1481 } 1482 1483 if (definition) 1484 info->type_stack->definition = TRUE; 1485 1486 return TRUE; 1487} 1488 1489/* Add a static member to the class on the type stack. */ 1490 1491static bfd_boolean 1492stab_class_static_member (void *p, const char *name, const char *physname, 1493 enum debug_visibility visibility) 1494{ 1495 struct stab_write_handle *info = (struct stab_write_handle *) p; 1496 bfd_boolean definition; 1497 char *s, *n; 1498 const char *vis; 1499 1500 definition = info->type_stack->definition; 1501 s = stab_pop_type (info); 1502 1503 /* Add this field to the end of the current struct fields, which is 1504 currently on the top of the stack. */ 1505 1506 assert (info->type_stack->fields != NULL); 1507 n = (char *) xmalloc (strlen (info->type_stack->fields) 1508 + strlen (name) 1509 + strlen (s) 1510 + strlen (physname) 1511 + 10); 1512 1513 switch (visibility) 1514 { 1515 default: 1516 abort (); 1517 1518 case DEBUG_VISIBILITY_PUBLIC: 1519 vis = ""; 1520 break; 1521 1522 case DEBUG_VISIBILITY_PRIVATE: 1523 vis = "/0"; 1524 break; 1525 1526 case DEBUG_VISIBILITY_PROTECTED: 1527 vis = "/1"; 1528 break; 1529 } 1530 1531 sprintf (n, "%s%s:%s%s:%s;", info->type_stack->fields, name, vis, s, 1532 physname); 1533 1534 free (info->type_stack->fields); 1535 info->type_stack->fields = n; 1536 1537 if (definition) 1538 info->type_stack->definition = TRUE; 1539 1540 return TRUE; 1541} 1542 1543/* Add a base class to the class on the type stack. */ 1544 1545static bfd_boolean 1546stab_class_baseclass (void *p, bfd_vma bitpos, bfd_boolean is_virtual, 1547 enum debug_visibility visibility) 1548{ 1549 struct stab_write_handle *info = (struct stab_write_handle *) p; 1550 bfd_boolean definition; 1551 char *s; 1552 char *buf; 1553 unsigned int c; 1554 char **baseclasses; 1555 1556 definition = info->type_stack->definition; 1557 s = stab_pop_type (info); 1558 1559 /* Build the base class specifier. */ 1560 1561 buf = (char *) xmalloc (strlen (s) + 25); 1562 buf[0] = is_virtual ? '1' : '0'; 1563 switch (visibility) 1564 { 1565 default: 1566 abort (); 1567 1568 case DEBUG_VISIBILITY_PRIVATE: 1569 buf[1] = '0'; 1570 break; 1571 1572 case DEBUG_VISIBILITY_PROTECTED: 1573 buf[1] = '1'; 1574 break; 1575 1576 case DEBUG_VISIBILITY_PUBLIC: 1577 buf[1] = '2'; 1578 break; 1579 } 1580 1581 sprintf (buf + 2, "%ld,%s;", (long) bitpos, s); 1582 free (s); 1583 1584 /* Add the new baseclass to the existing ones. */ 1585 1586 assert (info->type_stack != NULL && info->type_stack->fields != NULL); 1587 1588 if (info->type_stack->baseclasses == NULL) 1589 c = 0; 1590 else 1591 { 1592 c = 0; 1593 while (info->type_stack->baseclasses[c] != NULL) 1594 ++c; 1595 } 1596 1597 baseclasses = (char **) xrealloc (info->type_stack->baseclasses, 1598 (c + 2) * sizeof (*baseclasses)); 1599 baseclasses[c] = buf; 1600 baseclasses[c + 1] = NULL; 1601 1602 info->type_stack->baseclasses = baseclasses; 1603 1604 if (definition) 1605 info->type_stack->definition = TRUE; 1606 1607 return TRUE; 1608} 1609 1610/* Start adding a method to the class on the type stack. */ 1611 1612static bfd_boolean 1613stab_class_start_method (void *p, const char *name) 1614{ 1615 struct stab_write_handle *info = (struct stab_write_handle *) p; 1616 char *m; 1617 1618 assert (info->type_stack != NULL && info->type_stack->fields != NULL); 1619 1620 if (info->type_stack->methods == NULL) 1621 { 1622 m = (char *) xmalloc (strlen (name) + 3); 1623 *m = '\0'; 1624 } 1625 else 1626 { 1627 m = (char *) xrealloc (info->type_stack->methods, 1628 (strlen (info->type_stack->methods) 1629 + strlen (name) 1630 + 4)); 1631 } 1632 1633 sprintf (m + strlen (m), "%s::", name); 1634 1635 info->type_stack->methods = m; 1636 1637 return TRUE; 1638} 1639 1640/* Add a variant, either static or not, to the current method. */ 1641 1642static bfd_boolean 1643stab_class_method_var (struct stab_write_handle *info, const char *physname, 1644 enum debug_visibility visibility, 1645 bfd_boolean staticp, bfd_boolean constp, 1646 bfd_boolean volatilep, bfd_vma voffset, 1647 bfd_boolean contextp) 1648{ 1649 bfd_boolean definition; 1650 char *type; 1651 char *context = NULL; 1652 char visc, qualc, typec; 1653 1654 definition = info->type_stack->definition; 1655 type = stab_pop_type (info); 1656 1657 if (contextp) 1658 { 1659 definition = definition || info->type_stack->definition; 1660 context = stab_pop_type (info); 1661 } 1662 1663 assert (info->type_stack != NULL && info->type_stack->methods != NULL); 1664 1665 switch (visibility) 1666 { 1667 default: 1668 abort (); 1669 1670 case DEBUG_VISIBILITY_PRIVATE: 1671 visc = '0'; 1672 break; 1673 1674 case DEBUG_VISIBILITY_PROTECTED: 1675 visc = '1'; 1676 break; 1677 1678 case DEBUG_VISIBILITY_PUBLIC: 1679 visc = '2'; 1680 break; 1681 } 1682 1683 if (constp) 1684 { 1685 if (volatilep) 1686 qualc = 'D'; 1687 else 1688 qualc = 'B'; 1689 } 1690 else 1691 { 1692 if (volatilep) 1693 qualc = 'C'; 1694 else 1695 qualc = 'A'; 1696 } 1697 1698 if (staticp) 1699 typec = '?'; 1700 else if (! contextp) 1701 typec = '.'; 1702 else 1703 typec = '*'; 1704 1705 info->type_stack->methods = 1706 (char *) xrealloc (info->type_stack->methods, 1707 (strlen (info->type_stack->methods) 1708 + strlen (type) 1709 + strlen (physname) 1710 + (contextp ? strlen (context) : 0) 1711 + 40)); 1712 1713 sprintf (info->type_stack->methods + strlen (info->type_stack->methods), 1714 "%s:%s;%c%c%c", type, physname, visc, qualc, typec); 1715 free (type); 1716 1717 if (contextp) 1718 { 1719 sprintf (info->type_stack->methods + strlen (info->type_stack->methods), 1720 "%ld;%s;", (long) voffset, context); 1721 free (context); 1722 } 1723 1724 if (definition) 1725 info->type_stack->definition = TRUE; 1726 1727 return TRUE; 1728} 1729 1730/* Add a variant to the current method. */ 1731 1732static bfd_boolean 1733stab_class_method_variant (void *p, const char *physname, 1734 enum debug_visibility visibility, 1735 bfd_boolean constp, bfd_boolean volatilep, 1736 bfd_vma voffset, bfd_boolean contextp) 1737{ 1738 struct stab_write_handle *info = (struct stab_write_handle *) p; 1739 1740 return stab_class_method_var (info, physname, visibility, FALSE, constp, 1741 volatilep, voffset, contextp); 1742} 1743 1744/* Add a static variant to the current method. */ 1745 1746static bfd_boolean 1747stab_class_static_method_variant (void *p, const char *physname, 1748 enum debug_visibility visibility, 1749 bfd_boolean constp, bfd_boolean volatilep) 1750{ 1751 struct stab_write_handle *info = (struct stab_write_handle *) p; 1752 1753 return stab_class_method_var (info, physname, visibility, TRUE, constp, 1754 volatilep, 0, FALSE); 1755} 1756 1757/* Finish up a method. */ 1758 1759static bfd_boolean 1760stab_class_end_method (void *p) 1761{ 1762 struct stab_write_handle *info = (struct stab_write_handle *) p; 1763 1764 assert (info->type_stack != NULL && info->type_stack->methods != NULL); 1765 1766 /* We allocated enough room on info->type_stack->methods to add the 1767 trailing semicolon. */ 1768 strcat (info->type_stack->methods, ";"); 1769 1770 return TRUE; 1771} 1772 1773/* Finish up a class. */ 1774 1775static bfd_boolean 1776stab_end_class_type (void *p) 1777{ 1778 struct stab_write_handle *info = (struct stab_write_handle *) p; 1779 size_t len; 1780 unsigned int i = 0; 1781 char *buf; 1782 1783 assert (info->type_stack != NULL && info->type_stack->fields != NULL); 1784 1785 /* Work out the size we need to allocate for the class definition. */ 1786 1787 len = (strlen (info->type_stack->string) 1788 + strlen (info->type_stack->fields) 1789 + 10); 1790 if (info->type_stack->baseclasses != NULL) 1791 { 1792 len += 20; 1793 for (i = 0; info->type_stack->baseclasses[i] != NULL; i++) 1794 len += strlen (info->type_stack->baseclasses[i]); 1795 } 1796 if (info->type_stack->methods != NULL) 1797 len += strlen (info->type_stack->methods); 1798 if (info->type_stack->vtable != NULL) 1799 len += strlen (info->type_stack->vtable); 1800 1801 /* Build the class definition. */ 1802 1803 buf = (char *) xmalloc (len); 1804 1805 strcpy (buf, info->type_stack->string); 1806 1807 if (info->type_stack->baseclasses != NULL) 1808 { 1809 sprintf (buf + strlen (buf), "!%u,", i); 1810 for (i = 0; info->type_stack->baseclasses[i] != NULL; i++) 1811 { 1812 strcat (buf, info->type_stack->baseclasses[i]); 1813 free (info->type_stack->baseclasses[i]); 1814 } 1815 free (info->type_stack->baseclasses); 1816 info->type_stack->baseclasses = NULL; 1817 } 1818 1819 strcat (buf, info->type_stack->fields); 1820 free (info->type_stack->fields); 1821 info->type_stack->fields = NULL; 1822 1823 if (info->type_stack->methods != NULL) 1824 { 1825 strcat (buf, info->type_stack->methods); 1826 free (info->type_stack->methods); 1827 info->type_stack->methods = NULL; 1828 } 1829 1830 strcat (buf, ";"); 1831 1832 if (info->type_stack->vtable != NULL) 1833 { 1834 strcat (buf, info->type_stack->vtable); 1835 free (info->type_stack->vtable); 1836 info->type_stack->vtable = NULL; 1837 } 1838 1839 /* Replace the string on the top of the stack with the complete 1840 class definition. */ 1841 free (info->type_stack->string); 1842 info->type_stack->string = buf; 1843 1844 return TRUE; 1845} 1846 1847/* Push a typedef which was previously defined. */ 1848 1849static bfd_boolean 1850stab_typedef_type (void *p, const char *name) 1851{ 1852 struct stab_write_handle *info = (struct stab_write_handle *) p; 1853 struct string_hash_entry *h; 1854 1855 h = string_hash_lookup (&info->typedef_hash, name, FALSE, FALSE); 1856 assert (h != NULL && h->index > 0); 1857 1858 return stab_push_defined_type (info, h->index, h->size); 1859} 1860 1861/* Push a struct, union or class tag. */ 1862 1863static bfd_boolean 1864stab_tag_type (void *p, const char *name, unsigned int id, 1865 enum debug_type_kind kind) 1866{ 1867 struct stab_write_handle *info = (struct stab_write_handle *) p; 1868 long tindex; 1869 unsigned int size = 0; 1870 1871 tindex = stab_get_struct_index (info, name, id, kind, &size); 1872 if (tindex < 0) 1873 return FALSE; 1874 1875 return stab_push_defined_type (info, tindex, size); 1876} 1877 1878/* Define a typedef. */ 1879 1880static bfd_boolean 1881stab_typdef (void *p, const char *name) 1882{ 1883 struct stab_write_handle *info = (struct stab_write_handle *) p; 1884 long tindex; 1885 unsigned int size; 1886 char *s, *buf; 1887 struct string_hash_entry *h; 1888 1889 tindex = info->type_stack->index; 1890 size = info->type_stack->size; 1891 s = stab_pop_type (info); 1892 1893 buf = (char *) xmalloc (strlen (name) + strlen (s) + 20); 1894 1895 if (tindex > 0) 1896 sprintf (buf, "%s:t%s", name, s); 1897 else 1898 { 1899 tindex = info->type_index; 1900 ++info->type_index; 1901 sprintf (buf, "%s:t%ld=%s", name, tindex, s); 1902 } 1903 1904 free (s); 1905 1906 if (! stab_write_symbol (info, N_LSYM, 0, 0, buf)) 1907 return FALSE; 1908 1909 free (buf); 1910 1911 h = string_hash_lookup (&info->typedef_hash, name, TRUE, FALSE); 1912 if (h == NULL) 1913 { 1914 non_fatal (_("string_hash_lookup failed: %s"), 1915 bfd_errmsg (bfd_get_error ())); 1916 return FALSE; 1917 } 1918 1919 /* I don't think we care about redefinitions. */ 1920 1921 h->index = tindex; 1922 h->size = size; 1923 1924 return TRUE; 1925} 1926 1927/* Define a tag. */ 1928 1929static bfd_boolean 1930stab_tag (void *p, const char *tag) 1931{ 1932 struct stab_write_handle *info = (struct stab_write_handle *) p; 1933 char *s, *buf; 1934 1935 s = stab_pop_type (info); 1936 1937 buf = (char *) xmalloc (strlen (tag) + strlen (s) + 3); 1938 1939 sprintf (buf, "%s:T%s", tag, s); 1940 free (s); 1941 1942 if (! stab_write_symbol (info, N_LSYM, 0, 0, buf)) 1943 return FALSE; 1944 1945 free (buf); 1946 1947 return TRUE; 1948} 1949 1950/* Define an integer constant. */ 1951 1952static bfd_boolean 1953stab_int_constant (void *p, const char *name, bfd_vma val) 1954{ 1955 struct stab_write_handle *info = (struct stab_write_handle *) p; 1956 char *buf; 1957 1958 buf = (char *) xmalloc (strlen (name) + 20); 1959 sprintf (buf, "%s:c=i%ld", name, (long) val); 1960 1961 if (! stab_write_symbol (info, N_LSYM, 0, 0, buf)) 1962 return FALSE; 1963 1964 free (buf); 1965 1966 return TRUE; 1967} 1968 1969/* Define a floating point constant. */ 1970 1971static bfd_boolean 1972stab_float_constant (void *p, const char *name, double val) 1973{ 1974 struct stab_write_handle *info = (struct stab_write_handle *) p; 1975 char *buf; 1976 1977 buf = (char *) xmalloc (strlen (name) + 20); 1978 sprintf (buf, "%s:c=f%g", name, val); 1979 1980 if (! stab_write_symbol (info, N_LSYM, 0, 0, buf)) 1981 return FALSE; 1982 1983 free (buf); 1984 1985 return TRUE; 1986} 1987 1988/* Define a typed constant. */ 1989 1990static bfd_boolean 1991stab_typed_constant (void *p, const char *name, bfd_vma val) 1992{ 1993 struct stab_write_handle *info = (struct stab_write_handle *) p; 1994 char *s, *buf; 1995 1996 s = stab_pop_type (info); 1997 1998 buf = (char *) xmalloc (strlen (name) + strlen (s) + 20); 1999 sprintf (buf, "%s:c=e%s,%ld", name, s, (long) val); 2000 free (s); 2001 2002 if (! stab_write_symbol (info, N_LSYM, 0, 0, buf)) 2003 return FALSE; 2004 2005 free (buf); 2006 2007 return TRUE; 2008} 2009 2010/* Record a variable. */ 2011 2012static bfd_boolean 2013stab_variable (void *p, const char *name, enum debug_var_kind kind, 2014 bfd_vma val) 2015{ 2016 struct stab_write_handle *info = (struct stab_write_handle *) p; 2017 char *s, *buf; 2018 int stab_type; 2019 const char *kindstr; 2020 2021 s = stab_pop_type (info); 2022 2023 switch (kind) 2024 { 2025 default: 2026 abort (); 2027 2028 case DEBUG_GLOBAL: 2029 stab_type = N_GSYM; 2030 kindstr = "G"; 2031 break; 2032 2033 case DEBUG_STATIC: 2034 stab_type = N_STSYM; 2035 kindstr = "S"; 2036 break; 2037 2038 case DEBUG_LOCAL_STATIC: 2039 stab_type = N_STSYM; 2040 kindstr = "V"; 2041 break; 2042 2043 case DEBUG_LOCAL: 2044 stab_type = N_LSYM; 2045 kindstr = ""; 2046 2047 /* Make sure that this is a type reference or definition. */ 2048 if (! ISDIGIT (*s)) 2049 { 2050 char *n; 2051 long tindex; 2052 2053 tindex = info->type_index; 2054 ++info->type_index; 2055 n = (char *) xmalloc (strlen (s) + 20); 2056 sprintf (n, "%ld=%s", tindex, s); 2057 free (s); 2058 s = n; 2059 } 2060 break; 2061 2062 case DEBUG_REGISTER: 2063 stab_type = N_RSYM; 2064 kindstr = "r"; 2065 break; 2066 } 2067 2068 buf = (char *) xmalloc (strlen (name) + strlen (s) + 3); 2069 sprintf (buf, "%s:%s%s", name, kindstr, s); 2070 free (s); 2071 2072 if (! stab_write_symbol (info, stab_type, 0, val, buf)) 2073 return FALSE; 2074 2075 free (buf); 2076 2077 return TRUE; 2078} 2079 2080/* Start outputting a function. */ 2081 2082static bfd_boolean 2083stab_start_function (void *p, const char *name, bfd_boolean globalp) 2084{ 2085 struct stab_write_handle *info = (struct stab_write_handle *) p; 2086 char *rettype, *buf; 2087 2088 assert (info->nesting == 0 && info->fun_offset == -1); 2089 2090 rettype = stab_pop_type (info); 2091 2092 buf = (char *) xmalloc (strlen (name) + strlen (rettype) + 3); 2093 sprintf (buf, "%s:%c%s", name, 2094 globalp ? 'F' : 'f', 2095 rettype); 2096 2097 /* We don't know the value now, so we set it in start_block. */ 2098 info->fun_offset = info->symbols_size; 2099 2100 if (! stab_write_symbol (info, N_FUN, 0, 0, buf)) 2101 return FALSE; 2102 2103 free (buf); 2104 2105 return TRUE; 2106} 2107 2108/* Output a function parameter. */ 2109 2110static bfd_boolean 2111stab_function_parameter (void *p, const char *name, enum debug_parm_kind kind, bfd_vma val) 2112{ 2113 struct stab_write_handle *info = (struct stab_write_handle *) p; 2114 char *s, *buf; 2115 int stab_type; 2116 char kindc; 2117 2118 s = stab_pop_type (info); 2119 2120 switch (kind) 2121 { 2122 default: 2123 abort (); 2124 2125 case DEBUG_PARM_STACK: 2126 stab_type = N_PSYM; 2127 kindc = 'p'; 2128 break; 2129 2130 case DEBUG_PARM_REG: 2131 stab_type = N_RSYM; 2132 kindc = 'P'; 2133 break; 2134 2135 case DEBUG_PARM_REFERENCE: 2136 stab_type = N_PSYM; 2137 kindc = 'v'; 2138 break; 2139 2140 case DEBUG_PARM_REF_REG: 2141 stab_type = N_RSYM; 2142 kindc = 'a'; 2143 break; 2144 } 2145 2146 buf = (char *) xmalloc (strlen (name) + strlen (s) + 3); 2147 sprintf (buf, "%s:%c%s", name, kindc, s); 2148 free (s); 2149 2150 if (! stab_write_symbol (info, stab_type, 0, val, buf)) 2151 return FALSE; 2152 2153 free (buf); 2154 2155 return TRUE; 2156} 2157 2158/* Start a block. */ 2159 2160static bfd_boolean 2161stab_start_block (void *p, bfd_vma addr) 2162{ 2163 struct stab_write_handle *info = (struct stab_write_handle *) p; 2164 2165 /* Fill in any slots which have been waiting for the first known 2166 text address. */ 2167 2168 if (info->so_offset != -1) 2169 { 2170 bfd_put_32 (info->abfd, addr, info->symbols + info->so_offset + 8); 2171 info->so_offset = -1; 2172 } 2173 2174 if (info->fun_offset != -1) 2175 { 2176 bfd_put_32 (info->abfd, addr, info->symbols + info->fun_offset + 8); 2177 info->fun_offset = -1; 2178 } 2179 2180 ++info->nesting; 2181 2182 /* We will be called with a top level block surrounding the 2183 function, but stabs information does not output that block, so we 2184 ignore it. */ 2185 2186 if (info->nesting == 1) 2187 { 2188 info->fnaddr = addr; 2189 return TRUE; 2190 } 2191 2192 /* We have to output the LBRAC symbol after any variables which are 2193 declared inside the block. We postpone the LBRAC until the next 2194 start_block or end_block. */ 2195 2196 /* If we have postponed an LBRAC, output it now. */ 2197 if (info->pending_lbrac != (bfd_vma) -1) 2198 { 2199 if (! stab_write_symbol (info, N_LBRAC, 0, info->pending_lbrac, 2200 (const char *) NULL)) 2201 return FALSE; 2202 } 2203 2204 /* Remember the address and output it later. */ 2205 2206 info->pending_lbrac = addr - info->fnaddr; 2207 2208 return TRUE; 2209} 2210 2211/* End a block. */ 2212 2213static bfd_boolean 2214stab_end_block (void *p, bfd_vma addr) 2215{ 2216 struct stab_write_handle *info = (struct stab_write_handle *) p; 2217 2218 if (addr > info->last_text_address) 2219 info->last_text_address = addr; 2220 2221 /* If we have postponed an LBRAC, output it now. */ 2222 if (info->pending_lbrac != (bfd_vma) -1) 2223 { 2224 if (! stab_write_symbol (info, N_LBRAC, 0, info->pending_lbrac, 2225 (const char *) NULL)) 2226 return FALSE; 2227 info->pending_lbrac = (bfd_vma) -1; 2228 } 2229 2230 assert (info->nesting > 0); 2231 2232 --info->nesting; 2233 2234 /* We ignore the outermost block. */ 2235 if (info->nesting == 0) 2236 return TRUE; 2237 2238 return stab_write_symbol (info, N_RBRAC, 0, addr - info->fnaddr, 2239 (const char *) NULL); 2240} 2241 2242/* End a function. */ 2243 2244static bfd_boolean 2245stab_end_function (void *p ATTRIBUTE_UNUSED) 2246{ 2247 return TRUE; 2248} 2249 2250/* Output a line number. */ 2251 2252static bfd_boolean 2253stab_lineno (void *p, const char *file, unsigned long lineno, bfd_vma addr) 2254{ 2255 struct stab_write_handle *info = (struct stab_write_handle *) p; 2256 2257 assert (info->lineno_filename != NULL); 2258 2259 if (addr > info->last_text_address) 2260 info->last_text_address = addr; 2261 2262 if (filename_cmp (file, info->lineno_filename) != 0) 2263 { 2264 if (! stab_write_symbol (info, N_SOL, 0, addr, file)) 2265 return FALSE; 2266 info->lineno_filename = file; 2267 } 2268 2269 return stab_write_symbol (info, N_SLINE, lineno, addr - info->fnaddr, 2270 (const char *) NULL); 2271} 2272