1/* Definitions for symbol file management in GDB. 2 3 Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 4 2001, 2002, 2003, 2004 Free Software Foundation, Inc. 5 6 This file is part of GDB. 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 2 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., 59 Temple Place - Suite 330, 21 Boston, MA 02111-1307, USA. */ 22 23#if !defined (OBJFILES_H) 24#define OBJFILES_H 25 26#include "gdb_obstack.h" /* For obstack internals. */ 27#include "symfile.h" /* For struct psymbol_allocation_list */ 28 29struct bcache; 30struct htab; 31struct symtab; 32struct objfile_data; 33 34/* This structure maintains information on a per-objfile basis about the 35 "entry point" of the objfile, and the scope within which the entry point 36 exists. It is possible that gdb will see more than one objfile that is 37 executable, each with its own entry point. 38 39 For example, for dynamically linked executables in SVR4, the dynamic linker 40 code is contained within the shared C library, which is actually executable 41 and is run by the kernel first when an exec is done of a user executable 42 that is dynamically linked. The dynamic linker within the shared C library 43 then maps in the various program segments in the user executable and jumps 44 to the user executable's recorded entry point, as if the call had been made 45 directly by the kernel. 46 47 The traditional gdb method of using this info is to use the 48 recorded entry point to set the variables 49 deprecated_entry_file_lowpc and deprecated_entry_file_highpc from 50 the debugging information, where these values are the starting 51 address (inclusive) and ending address (exclusive) of the 52 instruction space in the executable which correspond to the 53 "startup file", I.E. crt0.o in most cases. This file is assumed to 54 be a startup file and frames with pc's inside it are treated as 55 nonexistent. Setting these variables is necessary so that 56 backtraces do not fly off the bottom of the stack. 57 58 NOTE: cagney/2003-09-09: It turns out that this "traditional" 59 method doesn't work. Corinna writes: ``It turns out that the call 60 to deprecated_inside_entry_file destroys a meaningful backtrace 61 under some conditions. E. g. the backtrace tests in the asm-source 62 testcase are broken for some targets. In this test the functions 63 are all implemented as part of one file and the testcase is not 64 necessarily linked with a start file (depending on the target). 65 What happens is, that the first frame is printed normaly and 66 following frames are treated as being inside the enttry file then. 67 This way, only the #0 frame is printed in the backtrace output.'' 68 Ref "frame.c" "NOTE: vinschen/2003-04-01". 69 70 Gdb also supports an alternate method to avoid running off the bottom 71 of the stack. 72 73 There are two frames that are "special", the frame for the function 74 containing the process entry point, since it has no predecessor frame, 75 and the frame for the function containing the user code entry point 76 (the main() function), since all the predecessor frames are for the 77 process startup code. Since we have no guarantee that the linked 78 in startup modules have any debugging information that gdb can use, 79 we need to avoid following frame pointers back into frames that might 80 have been built in the startup code, as we might get hopelessly 81 confused. However, we almost always have debugging information 82 available for main(). 83 84 These variables are used to save the range of PC values which are 85 valid within the main() function and within the function containing 86 the process entry point. If we always consider the frame for 87 main() as the outermost frame when debugging user code, and the 88 frame for the process entry point function as the outermost frame 89 when debugging startup code, then all we have to do is have 90 DEPRECATED_FRAME_CHAIN_VALID return false whenever a frame's 91 current PC is within the range specified by these variables. In 92 essence, we set "ceilings" in the frame chain beyond which we will 93 not proceed when following the frame chain back up the stack. 94 95 A nice side effect is that we can still debug startup code without 96 running off the end of the frame chain, assuming that we have usable 97 debugging information in the startup modules, and if we choose to not 98 use the block at main, or can't find it for some reason, everything 99 still works as before. And if we have no startup code debugging 100 information but we do have usable information for main(), backtraces 101 from user code don't go wandering off into the startup code. */ 102 103struct entry_info 104 { 105 106 /* The value we should use for this objects entry point. 107 The illegal/unknown value needs to be something other than 0, ~0 108 for instance, which is much less likely than 0. */ 109 110 CORE_ADDR entry_point; 111 112#define INVALID_ENTRY_POINT (~0) /* ~0 will not be in any file, we hope. */ 113 114 /* Start (inclusive) and end (exclusive) of function containing the 115 entry point. */ 116 117 CORE_ADDR entry_func_lowpc; 118 CORE_ADDR entry_func_highpc; 119 120 /* Start (inclusive) and end (exclusive) of object file containing the 121 entry point. */ 122 123 CORE_ADDR deprecated_entry_file_lowpc; 124 CORE_ADDR deprecated_entry_file_highpc; 125 126 /* Start (inclusive) and end (exclusive) of the user code main() function. */ 127 128 CORE_ADDR main_func_lowpc; 129 CORE_ADDR main_func_highpc; 130 131/* Use these values when any of the above ranges is invalid. */ 132 133/* We use these values because it guarantees that there is no number that is 134 both >= LOWPC && < HIGHPC. It is also highly unlikely that 3 is a valid 135 module or function start address (as opposed to 0). */ 136 137#define INVALID_ENTRY_LOWPC (3) 138#define INVALID_ENTRY_HIGHPC (1) 139 140 }; 141 142/* Sections in an objfile. 143 144 It is strange that we have both this notion of "sections" 145 and the one used by section_offsets. Section as used 146 here, (currently at least) means a BFD section, and the sections 147 are set up from the BFD sections in allocate_objfile. 148 149 The sections in section_offsets have their meaning determined by 150 the symbol format, and they are set up by the sym_offsets function 151 for that symbol file format. 152 153 I'm not sure this could or should be changed, however. */ 154 155struct obj_section 156 { 157 CORE_ADDR addr; /* lowest address in section */ 158 CORE_ADDR endaddr; /* 1+highest address in section */ 159 160 /* This field is being used for nefarious purposes by syms_from_objfile. 161 It is said to be redundant with section_offsets; it's not really being 162 used that way, however, it's some sort of hack I don't understand 163 and am not going to try to eliminate (yet, anyway). FIXME. 164 165 It was documented as "offset between (end)addr and actual memory 166 addresses", but that's not true; addr & endaddr are actual memory 167 addresses. */ 168 CORE_ADDR offset; 169 170 struct bfd_section *the_bfd_section; /* BFD section pointer */ 171 172 /* Objfile this section is part of. */ 173 struct objfile *objfile; 174 175 /* True if this "overlay section" is mapped into an "overlay region". */ 176 int ovly_mapped; 177 }; 178 179/* An import entry contains information about a symbol that 180 is used in this objfile but not defined in it, and so needs 181 to be imported from some other objfile */ 182/* Currently we just store the name; no attributes. 1997-08-05 */ 183typedef char *ImportEntry; 184 185 186/* An export entry contains information about a symbol that 187 is defined in this objfile and available for use in other 188 objfiles */ 189typedef struct 190 { 191 char *name; /* name of exported symbol */ 192 int address; /* offset subject to relocation */ 193 /* Currently no other attributes 1997-08-05 */ 194 } 195ExportEntry; 196 197 198/* The "objstats" structure provides a place for gdb to record some 199 interesting information about its internal state at runtime, on a 200 per objfile basis, such as information about the number of symbols 201 read, size of string table (if any), etc. */ 202 203struct objstats 204 { 205 int n_minsyms; /* Number of minimal symbols read */ 206 int n_psyms; /* Number of partial symbols read */ 207 int n_syms; /* Number of full symbols read */ 208 int n_stabs; /* Number of ".stabs" read (if applicable) */ 209 int n_types; /* Number of types */ 210 int sz_strtab; /* Size of stringtable, (if applicable) */ 211 }; 212 213#define OBJSTAT(objfile, expr) (objfile -> stats.expr) 214#define OBJSTATS struct objstats stats 215extern void print_objfile_statistics (void); 216extern void print_symbol_bcache_statistics (void); 217 218/* Number of entries in the minimal symbol hash table. */ 219#define MINIMAL_SYMBOL_HASH_SIZE 2039 220 221/* Master structure for keeping track of each file from which 222 gdb reads symbols. There are several ways these get allocated: 1. 223 The main symbol file, symfile_objfile, set by the symbol-file command, 224 2. Additional symbol files added by the add-symbol-file command, 225 3. Shared library objfiles, added by ADD_SOLIB, 4. symbol files 226 for modules that were loaded when GDB attached to a remote system 227 (see remote-vx.c). */ 228 229struct objfile 230 { 231 232 /* All struct objfile's are chained together by their next pointers. 233 The global variable "object_files" points to the first link in this 234 chain. 235 236 FIXME: There is a problem here if the objfile is reusable, and if 237 multiple users are to be supported. The problem is that the objfile 238 list is linked through a member of the objfile struct itself, which 239 is only valid for one gdb process. The list implementation needs to 240 be changed to something like: 241 242 struct list {struct list *next; struct objfile *objfile}; 243 244 where the list structure is completely maintained separately within 245 each gdb process. */ 246 247 struct objfile *next; 248 249 /* The object file's name, tilde-expanded and absolute. 250 Malloc'd; free it if you free this struct. */ 251 252 char *name; 253 254 /* Some flag bits for this objfile. */ 255 256 unsigned short flags; 257 258 /* Each objfile points to a linked list of symtabs derived from this file, 259 one symtab structure for each compilation unit (source file). Each link 260 in the symtab list contains a backpointer to this objfile. */ 261 262 struct symtab *symtabs; 263 264 /* Each objfile points to a linked list of partial symtabs derived from 265 this file, one partial symtab structure for each compilation unit 266 (source file). */ 267 268 struct partial_symtab *psymtabs; 269 270 /* List of freed partial symtabs, available for re-use */ 271 272 struct partial_symtab *free_psymtabs; 273 274 /* The object file's BFD. Can be null if the objfile contains only 275 minimal symbols, e.g. the run time common symbols for SunOS4. */ 276 277 bfd *obfd; 278 279 /* The modification timestamp of the object file, as of the last time 280 we read its symbols. */ 281 282 long mtime; 283 284 /* Obstack to hold objects that should be freed when we load a new symbol 285 table from this object file. */ 286 287 struct obstack objfile_obstack; 288 289 /* A byte cache where we can stash arbitrary "chunks" of bytes that 290 will not change. */ 291 292 struct bcache *psymbol_cache; /* Byte cache for partial syms */ 293 struct bcache *macro_cache; /* Byte cache for macros */ 294 295 /* Hash table for mapping symbol names to demangled names. Each 296 entry in the hash table is actually two consecutive strings, 297 both null-terminated; the first one is a mangled or linkage 298 name, and the second is the demangled name or just a zero byte 299 if the name doesn't demangle. */ 300 struct htab *demangled_names_hash; 301 302 /* Vectors of all partial symbols read in from file. The actual data 303 is stored in the objfile_obstack. */ 304 305 struct psymbol_allocation_list global_psymbols; 306 struct psymbol_allocation_list static_psymbols; 307 308 /* Each file contains a pointer to an array of minimal symbols for all 309 global symbols that are defined within the file. The array is terminated 310 by a "null symbol", one that has a NULL pointer for the name and a zero 311 value for the address. This makes it easy to walk through the array 312 when passed a pointer to somewhere in the middle of it. There is also 313 a count of the number of symbols, which does not include the terminating 314 null symbol. The array itself, as well as all the data that it points 315 to, should be allocated on the objfile_obstack for this file. */ 316 317 struct minimal_symbol *msymbols; 318 int minimal_symbol_count; 319 320 /* This is a hash table used to index the minimal symbols by name. */ 321 322 struct minimal_symbol *msymbol_hash[MINIMAL_SYMBOL_HASH_SIZE]; 323 324 /* This hash table is used to index the minimal symbols by their 325 demangled names. */ 326 327 struct minimal_symbol *msymbol_demangled_hash[MINIMAL_SYMBOL_HASH_SIZE]; 328 329 /* For object file formats which don't specify fundamental types, gdb 330 can create such types. For now, it maintains a vector of pointers 331 to these internally created fundamental types on a per objfile basis, 332 however it really should ultimately keep them on a per-compilation-unit 333 basis, to account for linkage-units that consist of a number of 334 compilation units that may have different fundamental types, such as 335 linking C modules with ADA modules, or linking C modules that are 336 compiled with 32-bit ints with C modules that are compiled with 64-bit 337 ints (not inherently evil with a smarter linker). */ 338 339 struct type **fundamental_types; 340 341 /* The mmalloc() malloc-descriptor for this objfile if we are using 342 the memory mapped malloc() package to manage storage for this objfile's 343 data. NULL if we are not. */ 344 345 void *md; 346 347 /* The file descriptor that was used to obtain the mmalloc descriptor 348 for this objfile. If we call mmalloc_detach with the malloc descriptor 349 we should then close this file descriptor. */ 350 351 int mmfd; 352 353 /* Structure which keeps track of functions that manipulate objfile's 354 of the same type as this objfile. I.E. the function to read partial 355 symbols for example. Note that this structure is in statically 356 allocated memory, and is shared by all objfiles that use the 357 object module reader of this type. */ 358 359 struct sym_fns *sf; 360 361 /* The per-objfile information about the entry point, the scope (file/func) 362 containing the entry point, and the scope of the user's main() func. */ 363 364 struct entry_info ei; 365 366 /* Information about stabs. Will be filled in with a dbx_symfile_info 367 struct by those readers that need it. */ 368 369 struct dbx_symfile_info *sym_stab_info; 370 371 /* Hook for information for use by the symbol reader (currently used 372 for information shared by sym_init and sym_read). It is 373 typically a pointer to malloc'd memory. The symbol reader's finish 374 function is responsible for freeing the memory thusly allocated. */ 375 376 void *sym_private; 377 378 /* Hook for target-architecture-specific information. This must 379 point to memory allocated on one of the obstacks in this objfile, 380 so that it gets freed automatically when reading a new object 381 file. */ 382 383 void *obj_private; 384 385 /* Per objfile data-pointers required by other GDB modules. */ 386 /* FIXME: kettenis/20030711: This mechanism could replace 387 sym_stab_info, sym_private and obj_private entirely. */ 388 389 void **data; 390 unsigned num_data; 391 392 /* Set of relocation offsets to apply to each section. 393 Currently on the objfile_obstack (which makes no sense, but I'm 394 not sure it's harming anything). 395 396 These offsets indicate that all symbols (including partial and 397 minimal symbols) which have been read have been relocated by this 398 much. Symbols which are yet to be read need to be relocated by 399 it. */ 400 401 struct section_offsets *section_offsets; 402 int num_sections; 403 404 /* Indexes in the section_offsets array. These are initialized by the 405 *_symfile_offsets() family of functions (som_symfile_offsets, 406 xcoff_symfile_offsets, default_symfile_offsets). In theory they 407 should correspond to the section indexes used by bfd for the 408 current objfile. The exception to this for the time being is the 409 SOM version. */ 410 411 int sect_index_text; 412 int sect_index_data; 413 int sect_index_bss; 414 int sect_index_rodata; 415 416 /* These pointers are used to locate the section table, which 417 among other things, is used to map pc addresses into sections. 418 SECTIONS points to the first entry in the table, and 419 SECTIONS_END points to the first location past the last entry 420 in the table. Currently the table is stored on the 421 objfile_obstack (which makes no sense, but I'm not sure it's 422 harming anything). */ 423 424 struct obj_section 425 *sections, *sections_end; 426 427 /* Imported symbols */ 428 /* FIXME: ezannoni 2004-02-10: This is just SOM (HP) specific (see 429 somread.c). It should not pollute generic objfiles. */ 430 ImportEntry *import_list; 431 int import_list_size; 432 433 /* Exported symbols */ 434 /* FIXME: ezannoni 2004-02-10: This is just SOM (HP) specific (see 435 somread.c). It should not pollute generic objfiles. */ 436 ExportEntry *export_list; 437 int export_list_size; 438 439 /* Link to objfile that contains the debug symbols for this one. 440 One is loaded if this file has an debug link to an existing 441 debug file with the right checksum */ 442 struct objfile *separate_debug_objfile; 443 444 /* If this is a separate debug object, this is used as a link to the 445 actual executable objfile. */ 446 struct objfile *separate_debug_objfile_backlink; 447 448 /* Place to stash various statistics about this objfile */ 449 OBJSTATS; 450 451 /* A symtab that the C++ code uses to stash special symbols 452 associated to namespaces. */ 453 454 /* FIXME/carlton-2003-06-27: Delete this in a few years once 455 "possible namespace symbols" go away. */ 456 struct symtab *cp_namespace_symtab; 457 }; 458 459/* Defines for the objfile flag word. */ 460 461/* When using mapped/remapped predigested gdb symbol information, we need 462 a flag that indicates that we have previously done an initial symbol 463 table read from this particular objfile. We can't just look for the 464 absence of any of the three symbol tables (msymbols, psymtab, symtab) 465 because if the file has no symbols for example, none of these will 466 exist. */ 467 468#define OBJF_SYMS (1 << 1) /* Have tried to read symbols */ 469 470/* When an object file has its functions reordered (currently Irix-5.2 471 shared libraries exhibit this behaviour), we will need an expensive 472 algorithm to locate a partial symtab or symtab via an address. 473 To avoid this penalty for normal object files, we use this flag, 474 whose setting is determined upon symbol table read in. */ 475 476#define OBJF_REORDERED (1 << 2) /* Functions are reordered */ 477 478/* Distinguish between an objfile for a shared library and a "vanilla" 479 objfile. (If not set, the objfile may still actually be a solib. 480 This can happen if the user created the objfile by using the 481 add-symbol-file command. GDB doesn't in that situation actually 482 check whether the file is a solib. Rather, the target's 483 implementation of the solib interface is responsible for setting 484 this flag when noticing solibs used by an inferior.) */ 485 486#define OBJF_SHARED (1 << 3) /* From a shared library */ 487 488/* User requested that this objfile be read in it's entirety. */ 489 490#define OBJF_READNOW (1 << 4) /* Immediate full read */ 491 492/* This objfile was created because the user explicitly caused it 493 (e.g., used the add-symbol-file command). This bit offers a way 494 for run_command to remove old objfile entries which are no longer 495 valid (i.e., are associated with an old inferior), but to preserve 496 ones that the user explicitly loaded via the add-symbol-file 497 command. */ 498 499#define OBJF_USERLOADED (1 << 5) /* User loaded */ 500 501/* The object file that the main symbol table was loaded from (e.g. the 502 argument to the "symbol-file" or "file" command). */ 503 504extern struct objfile *symfile_objfile; 505 506/* The object file that contains the runtime common minimal symbols 507 for SunOS4. Note that this objfile has no associated BFD. */ 508 509extern struct objfile *rt_common_objfile; 510 511/* When we need to allocate a new type, we need to know which objfile_obstack 512 to allocate the type on, since there is one for each objfile. The places 513 where types are allocated are deeply buried in function call hierarchies 514 which know nothing about objfiles, so rather than trying to pass a 515 particular objfile down to them, we just do an end run around them and 516 set current_objfile to be whatever objfile we expect to be using at the 517 time types are being allocated. For instance, when we start reading 518 symbols for a particular objfile, we set current_objfile to point to that 519 objfile, and when we are done, we set it back to NULL, to ensure that we 520 never put a type someplace other than where we are expecting to put it. 521 FIXME: Maybe we should review the entire type handling system and 522 see if there is a better way to avoid this problem. */ 523 524extern struct objfile *current_objfile; 525 526/* All known objfiles are kept in a linked list. This points to the 527 root of this list. */ 528 529extern struct objfile *object_files; 530 531/* Declarations for functions defined in objfiles.c */ 532 533extern struct objfile *allocate_objfile (bfd *, int); 534 535extern void init_entry_point_info (struct objfile *); 536 537extern CORE_ADDR entry_point_address (void); 538 539extern int build_objfile_section_table (struct objfile *); 540 541extern void terminate_minimal_symbol_table (struct objfile *objfile); 542 543extern void put_objfile_before (struct objfile *, struct objfile *); 544 545extern void objfile_to_front (struct objfile *); 546 547extern void unlink_objfile (struct objfile *); 548 549extern void free_objfile (struct objfile *); 550 551extern struct cleanup *make_cleanup_free_objfile (struct objfile *); 552 553extern void free_all_objfiles (void); 554 555extern void objfile_relocate (struct objfile *, struct section_offsets *); 556 557extern int have_partial_symbols (void); 558 559extern int have_full_symbols (void); 560 561/* This operation deletes all objfile entries that represent solibs that 562 weren't explicitly loaded by the user, via e.g., the add-symbol-file 563 command. 564 */ 565extern void objfile_purge_solibs (void); 566 567/* Functions for dealing with the minimal symbol table, really a misc 568 address<->symbol mapping for things we don't have debug symbols for. */ 569 570extern int have_minimal_symbols (void); 571 572extern struct obj_section *find_pc_section (CORE_ADDR pc); 573 574extern struct obj_section *find_pc_sect_section (CORE_ADDR pc, 575 asection * section); 576 577extern int in_plt_section (CORE_ADDR, char *); 578 579extern int is_in_import_list (char *, struct objfile *); 580 581/* Keep a registry of per-objfile data-pointers required by other GDB 582 modules. */ 583 584extern const struct objfile_data *register_objfile_data (void); 585extern void clear_objfile_data (struct objfile *objfile); 586extern void set_objfile_data (struct objfile *objfile, 587 const struct objfile_data *data, void *value); 588extern void *objfile_data (struct objfile *objfile, 589 const struct objfile_data *data); 590 591 592/* Traverse all object files. ALL_OBJFILES_SAFE works even if you delete 593 the objfile during the traversal. */ 594 595#define ALL_OBJFILES(obj) \ 596 for ((obj) = object_files; (obj) != NULL; (obj) = (obj)->next) 597 598#define ALL_OBJFILES_SAFE(obj,nxt) \ 599 for ((obj) = object_files; \ 600 (obj) != NULL? ((nxt)=(obj)->next,1) :0; \ 601 (obj) = (nxt)) 602 603/* Traverse all symtabs in one objfile. */ 604 605#define ALL_OBJFILE_SYMTABS(objfile, s) \ 606 for ((s) = (objfile) -> symtabs; (s) != NULL; (s) = (s) -> next) 607 608/* Traverse all psymtabs in one objfile. */ 609 610#define ALL_OBJFILE_PSYMTABS(objfile, p) \ 611 for ((p) = (objfile) -> psymtabs; (p) != NULL; (p) = (p) -> next) 612 613/* Traverse all minimal symbols in one objfile. */ 614 615#define ALL_OBJFILE_MSYMBOLS(objfile, m) \ 616 for ((m) = (objfile) -> msymbols; DEPRECATED_SYMBOL_NAME(m) != NULL; (m)++) 617 618/* Traverse all symtabs in all objfiles. */ 619 620#define ALL_SYMTABS(objfile, s) \ 621 ALL_OBJFILES (objfile) \ 622 ALL_OBJFILE_SYMTABS (objfile, s) 623 624/* Traverse all psymtabs in all objfiles. */ 625 626#define ALL_PSYMTABS(objfile, p) \ 627 ALL_OBJFILES (objfile) \ 628 ALL_OBJFILE_PSYMTABS (objfile, p) 629 630/* Traverse all minimal symbols in all objfiles. */ 631 632#define ALL_MSYMBOLS(objfile, m) \ 633 ALL_OBJFILES (objfile) \ 634 ALL_OBJFILE_MSYMBOLS (objfile, m) 635 636#define ALL_OBJFILE_OSECTIONS(objfile, osect) \ 637 for (osect = objfile->sections; osect < objfile->sections_end; osect++) 638 639#define ALL_OBJSECTIONS(objfile, osect) \ 640 ALL_OBJFILES (objfile) \ 641 ALL_OBJFILE_OSECTIONS (objfile, osect) 642 643#define SECT_OFF_DATA(objfile) \ 644 ((objfile->sect_index_data == -1) \ 645 ? (internal_error (__FILE__, __LINE__, "sect_index_data not initialized"), -1) \ 646 : objfile->sect_index_data) 647 648#define SECT_OFF_RODATA(objfile) \ 649 ((objfile->sect_index_rodata == -1) \ 650 ? (internal_error (__FILE__, __LINE__, "sect_index_rodata not initialized"), -1) \ 651 : objfile->sect_index_rodata) 652 653#define SECT_OFF_TEXT(objfile) \ 654 ((objfile->sect_index_text == -1) \ 655 ? (internal_error (__FILE__, __LINE__, "sect_index_text not initialized"), -1) \ 656 : objfile->sect_index_text) 657 658/* Sometimes the .bss section is missing from the objfile, so we don't 659 want to die here. Let the users of SECT_OFF_BSS deal with an 660 uninitialized section index. */ 661#define SECT_OFF_BSS(objfile) (objfile)->sect_index_bss 662 663#endif /* !defined (OBJFILES_H) */ 664