1 /* Definitions for symbol file management in GDB. 2 3 Copyright (C) 1992-2013 Free Software Foundation, Inc. 4 5 This file is part of GDB. 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, see <http://www.gnu.org/licenses/>. */ 19 20 #if !defined (OBJFILES_H) 21 #define OBJFILES_H 22 23 #include "gdb_obstack.h" /* For obstack internals. */ 24 #include "symfile.h" /* For struct psymbol_allocation_list. */ 25 #include "progspace.h" 26 #include "registry.h" 27 28 struct bcache; 29 struct htab; 30 struct symtab; 31 struct objfile_data; 32 33 /* This structure maintains information on a per-objfile basis about the 34 "entry point" of the objfile, and the scope within which the entry point 35 exists. It is possible that gdb will see more than one objfile that is 36 executable, each with its own entry point. 37 38 For example, for dynamically linked executables in SVR4, the dynamic linker 39 code is contained within the shared C library, which is actually executable 40 and is run by the kernel first when an exec is done of a user executable 41 that is dynamically linked. The dynamic linker within the shared C library 42 then maps in the various program segments in the user executable and jumps 43 to the user executable's recorded entry point, as if the call had been made 44 directly by the kernel. 45 46 The traditional gdb method of using this info was to use the 47 recorded entry point to set the entry-file's lowpc and highpc from 48 the debugging information, where these values are the starting 49 address (inclusive) and ending address (exclusive) of the 50 instruction space in the executable which correspond to the 51 "startup file", i.e. crt0.o in most cases. This file is assumed to 52 be a startup file and frames with pc's inside it are treated as 53 nonexistent. Setting these variables is necessary so that 54 backtraces do not fly off the bottom of the stack. 55 56 NOTE: cagney/2003-09-09: It turns out that this "traditional" 57 method doesn't work. Corinna writes: ``It turns out that the call 58 to test for "inside entry file" destroys a meaningful backtrace 59 under some conditions. E.g. the backtrace tests in the asm-source 60 testcase are broken for some targets. In this test the functions 61 are all implemented as part of one file and the testcase is not 62 necessarily linked with a start file (depending on the target). 63 What happens is, that the first frame is printed normaly and 64 following frames are treated as being inside the enttry file then. 65 This way, only the #0 frame is printed in the backtrace output.'' 66 Ref "frame.c" "NOTE: vinschen/2003-04-01". 67 68 Gdb also supports an alternate method to avoid running off the bottom 69 of the stack. 70 71 There are two frames that are "special", the frame for the function 72 containing the process entry point, since it has no predecessor frame, 73 and the frame for the function containing the user code entry point 74 (the main() function), since all the predecessor frames are for the 75 process startup code. Since we have no guarantee that the linked 76 in startup modules have any debugging information that gdb can use, 77 we need to avoid following frame pointers back into frames that might 78 have been built in the startup code, as we might get hopelessly 79 confused. However, we almost always have debugging information 80 available for main(). 81 82 These variables are used to save the range of PC values which are 83 valid within the main() function and within the function containing 84 the process entry point. If we always consider the frame for 85 main() as the outermost frame when debugging user code, and the 86 frame for the process entry point function as the outermost frame 87 when debugging startup code, then all we have to do is have 88 DEPRECATED_FRAME_CHAIN_VALID return false whenever a frame's 89 current PC is within the range specified by these variables. In 90 essence, we set "ceilings" in the frame chain beyond which we will 91 not proceed when following the frame chain back up the stack. 92 93 A nice side effect is that we can still debug startup code without 94 running off the end of the frame chain, assuming that we have usable 95 debugging information in the startup modules, and if we choose to not 96 use the block at main, or can't find it for some reason, everything 97 still works as before. And if we have no startup code debugging 98 information but we do have usable information for main(), backtraces 99 from user code don't go wandering off into the startup code. */ 100 101 struct entry_info 102 { 103 /* The relocated value we should use for this objfile entry point. */ 104 CORE_ADDR entry_point; 105 106 /* Set to 1 iff ENTRY_POINT contains a valid value. */ 107 unsigned entry_point_p : 1; 108 }; 109 110 /* Sections in an objfile. The section offsets are stored in the 111 OBJFILE. */ 112 113 struct obj_section 114 { 115 struct bfd_section *the_bfd_section; /* BFD section pointer */ 116 117 /* Objfile this section is part of. */ 118 struct objfile *objfile; 119 120 /* True if this "overlay section" is mapped into an "overlay region". */ 121 int ovly_mapped; 122 }; 123 124 /* Relocation offset applied to S. */ 125 #define obj_section_offset(s) \ 126 (((s)->objfile->section_offsets)->offsets[(s)->the_bfd_section->index]) 127 128 /* The memory address of section S (vma + offset). */ 129 #define obj_section_addr(s) \ 130 (bfd_get_section_vma ((s)->objfile->obfd, s->the_bfd_section) \ 131 + obj_section_offset (s)) 132 133 /* The one-passed-the-end memory address of section S 134 (vma + size + offset). */ 135 #define obj_section_endaddr(s) \ 136 (bfd_get_section_vma ((s)->objfile->obfd, s->the_bfd_section) \ 137 + bfd_get_section_size ((s)->the_bfd_section) \ 138 + obj_section_offset (s)) 139 140 /* The "objstats" structure provides a place for gdb to record some 141 interesting information about its internal state at runtime, on a 142 per objfile basis, such as information about the number of symbols 143 read, size of string table (if any), etc. */ 144 145 struct objstats 146 { 147 int n_minsyms; /* Number of minimal symbols read */ 148 int n_psyms; /* Number of partial symbols read */ 149 int n_syms; /* Number of full symbols read */ 150 int n_stabs; /* Number of ".stabs" read (if applicable) */ 151 int n_types; /* Number of types */ 152 int sz_strtab; /* Size of stringtable, (if applicable) */ 153 }; 154 155 #define OBJSTAT(objfile, expr) (objfile -> stats.expr) 156 #define OBJSTATS struct objstats stats 157 extern void print_objfile_statistics (void); 158 extern void print_symbol_bcache_statistics (void); 159 160 /* Number of entries in the minimal symbol hash table. */ 161 #define MINIMAL_SYMBOL_HASH_SIZE 2039 162 163 /* Some objfile data is hung off the BFD. This enables sharing of the 164 data across all objfiles using the BFD. The data is stored in an 165 instance of this structure, and associated with the BFD using the 166 registry system. */ 167 168 struct objfile_per_bfd_storage 169 { 170 /* The storage has an obstack of its own. */ 171 172 struct obstack storage_obstack; 173 174 /* Byte cache for file names. */ 175 176 struct bcache *filename_cache; 177 178 /* Byte cache for macros. */ 179 struct bcache *macro_cache; 180 }; 181 182 /* Master structure for keeping track of each file from which 183 gdb reads symbols. There are several ways these get allocated: 1. 184 The main symbol file, symfile_objfile, set by the symbol-file command, 185 2. Additional symbol files added by the add-symbol-file command, 186 3. Shared library objfiles, added by ADD_SOLIB, 4. symbol files 187 for modules that were loaded when GDB attached to a remote system 188 (see remote-vx.c). */ 189 190 struct objfile 191 { 192 193 /* All struct objfile's are chained together by their next pointers. 194 The program space field "objfiles" (frequently referenced via 195 the macro "object_files") points to the first link in this 196 chain. */ 197 198 struct objfile *next; 199 200 /* The object file's name, tilde-expanded and absolute. This 201 pointer is never NULL. This does not have to be freed; it is 202 guaranteed to have a lifetime at least as long as the objfile. */ 203 204 char *name; 205 206 CORE_ADDR addr_low; 207 208 /* Some flag bits for this objfile. 209 The values are defined by OBJF_*. */ 210 211 unsigned short flags; 212 213 /* The program space associated with this objfile. */ 214 215 struct program_space *pspace; 216 217 /* Each objfile points to a linked list of symtabs derived from this file, 218 one symtab structure for each compilation unit (source file). Each link 219 in the symtab list contains a backpointer to this objfile. */ 220 221 struct symtab *symtabs; 222 223 /* Each objfile points to a linked list of partial symtabs derived from 224 this file, one partial symtab structure for each compilation unit 225 (source file). */ 226 227 struct partial_symtab *psymtabs; 228 229 /* Map addresses to the entries of PSYMTABS. It would be more efficient to 230 have a map per the whole process but ADDRMAP cannot selectively remove 231 its items during FREE_OBJFILE. This mapping is already present even for 232 PARTIAL_SYMTABs which still have no corresponding full SYMTABs read. */ 233 234 struct addrmap *psymtabs_addrmap; 235 236 /* List of freed partial symtabs, available for re-use. */ 237 238 struct partial_symtab *free_psymtabs; 239 240 /* The object file's BFD. Can be null if the objfile contains only 241 minimal symbols, e.g. the run time common symbols for SunOS4. */ 242 243 bfd *obfd; 244 245 /* The per-BFD data. Note that this is treated specially if OBFD 246 is NULL. */ 247 248 struct objfile_per_bfd_storage *per_bfd; 249 250 /* The gdbarch associated with the BFD. Note that this gdbarch is 251 determined solely from BFD information, without looking at target 252 information. The gdbarch determined from a running target may 253 differ from this e.g. with respect to register types and names. */ 254 255 struct gdbarch *gdbarch; 256 257 /* The modification timestamp of the object file, as of the last time 258 we read its symbols. */ 259 260 long mtime; 261 262 /* Cached 32-bit CRC as computed by gnu_debuglink_crc32. CRC32 is valid 263 iff CRC32_P. */ 264 unsigned long crc32; 265 int crc32_p; 266 267 /* Obstack to hold objects that should be freed when we load a new symbol 268 table from this object file. */ 269 270 struct obstack objfile_obstack; 271 272 /* A byte cache where we can stash arbitrary "chunks" of bytes that 273 will not change. */ 274 275 struct psymbol_bcache *psymbol_cache; /* Byte cache for partial syms. */ 276 277 /* Hash table for mapping symbol names to demangled names. Each 278 entry in the hash table is actually two consecutive strings, 279 both null-terminated; the first one is a mangled or linkage 280 name, and the second is the demangled name or just a zero byte 281 if the name doesn't demangle. */ 282 struct htab *demangled_names_hash; 283 284 /* Vectors of all partial symbols read in from file. The actual data 285 is stored in the objfile_obstack. */ 286 287 struct psymbol_allocation_list global_psymbols; 288 struct psymbol_allocation_list static_psymbols; 289 290 /* Each file contains a pointer to an array of minimal symbols for all 291 global symbols that are defined within the file. The array is 292 terminated by a "null symbol", one that has a NULL pointer for the 293 name and a zero value for the address. This makes it easy to walk 294 through the array when passed a pointer to somewhere in the middle 295 of it. There is also a count of the number of symbols, which does 296 not include the terminating null symbol. The array itself, as well 297 as all the data that it points to, should be allocated on the 298 objfile_obstack for this file. */ 299 300 struct minimal_symbol *msymbols; 301 int minimal_symbol_count; 302 303 /* This is a hash table used to index the minimal symbols by name. */ 304 305 struct minimal_symbol *msymbol_hash[MINIMAL_SYMBOL_HASH_SIZE]; 306 307 /* This hash table is used to index the minimal symbols by their 308 demangled names. */ 309 310 struct minimal_symbol *msymbol_demangled_hash[MINIMAL_SYMBOL_HASH_SIZE]; 311 312 /* Structure which keeps track of functions that manipulate objfile's 313 of the same type as this objfile. I.e. the function to read partial 314 symbols for example. Note that this structure is in statically 315 allocated memory, and is shared by all objfiles that use the 316 object module reader of this type. */ 317 318 const struct sym_fns *sf; 319 320 /* The per-objfile information about the entry point, the scope (file/func) 321 containing the entry point, and the scope of the user's main() func. */ 322 323 struct entry_info ei; 324 325 /* Per objfile data-pointers required by other GDB modules. */ 326 327 REGISTRY_FIELDS; 328 329 /* Set of relocation offsets to apply to each section. 330 The table is indexed by the_bfd_section->index, thus it is generally 331 as large as the number of sections in the binary. 332 The table is stored on the objfile_obstack. 333 334 These offsets indicate that all symbols (including partial and 335 minimal symbols) which have been read have been relocated by this 336 much. Symbols which are yet to be read need to be relocated by it. */ 337 338 struct section_offsets *section_offsets; 339 int num_sections; 340 341 /* Indexes in the section_offsets array. These are initialized by the 342 *_symfile_offsets() family of functions (som_symfile_offsets, 343 xcoff_symfile_offsets, default_symfile_offsets). In theory they 344 should correspond to the section indexes used by bfd for the 345 current objfile. The exception to this for the time being is the 346 SOM version. */ 347 348 int sect_index_text; 349 int sect_index_data; 350 int sect_index_bss; 351 int sect_index_rodata; 352 353 /* These pointers are used to locate the section table, which 354 among other things, is used to map pc addresses into sections. 355 SECTIONS points to the first entry in the table, and 356 SECTIONS_END points to the first location past the last entry 357 in the table. The table is stored on the objfile_obstack. 358 There is no particular order to the sections in this table, and it 359 only contains sections we care about (e.g. non-empty, SEC_ALLOC). */ 360 361 struct obj_section *sections, *sections_end; 362 363 /* GDB allows to have debug symbols in separate object files. This is 364 used by .gnu_debuglink, ELF build id note and Mach-O OSO. 365 Although this is a tree structure, GDB only support one level 366 (ie a separate debug for a separate debug is not supported). Note that 367 separate debug object are in the main chain and therefore will be 368 visited by ALL_OBJFILES & co iterators. Separate debug objfile always 369 has a non-nul separate_debug_objfile_backlink. */ 370 371 /* Link to the first separate debug object, if any. */ 372 struct objfile *separate_debug_objfile; 373 374 /* If this is a separate debug object, this is used as a link to the 375 actual executable objfile. */ 376 struct objfile *separate_debug_objfile_backlink; 377 378 /* If this is a separate debug object, this is a link to the next one 379 for the same executable objfile. */ 380 struct objfile *separate_debug_objfile_link; 381 382 /* Place to stash various statistics about this objfile. */ 383 OBJSTATS; 384 385 /* A linked list of symbols created when reading template types or 386 function templates. These symbols are not stored in any symbol 387 table, so we have to keep them here to relocate them 388 properly. */ 389 struct symbol *template_symbols; 390 }; 391 392 /* Defines for the objfile flag word. */ 393 394 /* When an object file has its functions reordered (currently Irix-5.2 395 shared libraries exhibit this behaviour), we will need an expensive 396 algorithm to locate a partial symtab or symtab via an address. 397 To avoid this penalty for normal object files, we use this flag, 398 whose setting is determined upon symbol table read in. */ 399 400 #define OBJF_REORDERED (1 << 0) /* Functions are reordered */ 401 402 /* Distinguish between an objfile for a shared library and a "vanilla" 403 objfile. (If not set, the objfile may still actually be a solib. 404 This can happen if the user created the objfile by using the 405 add-symbol-file command. GDB doesn't in that situation actually 406 check whether the file is a solib. Rather, the target's 407 implementation of the solib interface is responsible for setting 408 this flag when noticing solibs used by an inferior.) */ 409 410 #define OBJF_SHARED (1 << 1) /* From a shared library */ 411 412 /* User requested that this objfile be read in it's entirety. */ 413 414 #define OBJF_READNOW (1 << 2) /* Immediate full read */ 415 416 /* This objfile was created because the user explicitly caused it 417 (e.g., used the add-symbol-file command). This bit offers a way 418 for run_command to remove old objfile entries which are no longer 419 valid (i.e., are associated with an old inferior), but to preserve 420 ones that the user explicitly loaded via the add-symbol-file 421 command. */ 422 423 #define OBJF_USERLOADED (1 << 3) /* User loaded */ 424 425 /* Set if we have tried to read partial symtabs for this objfile. 426 This is used to allow lazy reading of partial symtabs. */ 427 428 #define OBJF_PSYMTABS_READ (1 << 4) 429 430 /* Set if this is the main symbol file 431 (as opposed to symbol file for dynamically loaded code). */ 432 433 #define OBJF_MAINLINE (1 << 5) 434 435 /* The object file that contains the runtime common minimal symbols 436 for SunOS4. Note that this objfile has no associated BFD. */ 437 438 extern struct objfile *rt_common_objfile; 439 440 /* Declarations for functions defined in objfiles.c */ 441 442 extern struct objfile *allocate_objfile (bfd *, int); 443 444 extern struct gdbarch *get_objfile_arch (struct objfile *); 445 446 extern int entry_point_address_query (CORE_ADDR *entry_p); 447 448 extern CORE_ADDR entry_point_address (void); 449 450 extern void build_objfile_section_table (struct objfile *); 451 452 extern void terminate_minimal_symbol_table (struct objfile *objfile); 453 454 extern struct objfile *objfile_separate_debug_iterate (const struct objfile *, 455 const struct objfile *); 456 457 extern void put_objfile_before (struct objfile *, struct objfile *); 458 459 extern void objfile_to_front (struct objfile *); 460 461 extern void add_separate_debug_objfile (struct objfile *, struct objfile *); 462 463 extern void unlink_objfile (struct objfile *); 464 465 extern void free_objfile (struct objfile *); 466 467 extern void free_objfile_separate_debug (struct objfile *); 468 469 extern struct cleanup *make_cleanup_free_objfile (struct objfile *); 470 471 extern void free_all_objfiles (void); 472 473 extern void objfile_relocate (struct objfile *, struct section_offsets *); 474 extern void objfile_rebase (struct objfile *, CORE_ADDR); 475 476 extern int objfile_has_partial_symbols (struct objfile *objfile); 477 478 extern int objfile_has_full_symbols (struct objfile *objfile); 479 480 extern int objfile_has_symbols (struct objfile *objfile); 481 482 extern int have_partial_symbols (void); 483 484 extern int have_full_symbols (void); 485 486 extern void objfiles_changed (void); 487 488 /* This operation deletes all objfile entries that represent solibs that 489 weren't explicitly loaded by the user, via e.g., the add-symbol-file 490 command. */ 491 492 extern void objfile_purge_solibs (void); 493 494 /* Functions for dealing with the minimal symbol table, really a misc 495 address<->symbol mapping for things we don't have debug symbols for. */ 496 497 extern int have_minimal_symbols (void); 498 499 extern struct obj_section *find_pc_section (CORE_ADDR pc); 500 501 extern int in_plt_section (CORE_ADDR, char *); 502 503 /* Keep a registry of per-objfile data-pointers required by other GDB 504 modules. */ 505 DECLARE_REGISTRY(objfile); 506 507 extern void default_iterate_over_objfiles_in_search_order 508 (struct gdbarch *gdbarch, 509 iterate_over_objfiles_in_search_order_cb_ftype *cb, 510 void *cb_data, struct objfile *current_objfile); 511 512 513 /* Traverse all object files in the current program space. 514 ALL_OBJFILES_SAFE works even if you delete the objfile during the 515 traversal. */ 516 517 /* Traverse all object files in program space SS. */ 518 519 #define ALL_PSPACE_OBJFILES(ss, obj) \ 520 for ((obj) = ss->objfiles; (obj) != NULL; (obj) = (obj)->next) 521 522 #define ALL_PSPACE_OBJFILES_SAFE(ss, obj, nxt) \ 523 for ((obj) = ss->objfiles; \ 524 (obj) != NULL? ((nxt)=(obj)->next,1) :0; \ 525 (obj) = (nxt)) 526 527 #define ALL_OBJFILES(obj) \ 528 for ((obj) = current_program_space->objfiles; \ 529 (obj) != NULL; \ 530 (obj) = (obj)->next) 531 532 #define ALL_OBJFILES_SAFE(obj,nxt) \ 533 for ((obj) = current_program_space->objfiles; \ 534 (obj) != NULL? ((nxt)=(obj)->next,1) :0; \ 535 (obj) = (nxt)) 536 537 /* Traverse all symtabs in one objfile. */ 538 539 #define ALL_OBJFILE_SYMTABS(objfile, s) \ 540 for ((s) = (objfile) -> symtabs; (s) != NULL; (s) = (s) -> next) 541 542 /* Traverse all primary symtabs in one objfile. */ 543 544 #define ALL_OBJFILE_PRIMARY_SYMTABS(objfile, s) \ 545 ALL_OBJFILE_SYMTABS ((objfile), (s)) \ 546 if ((s)->primary) 547 548 /* Traverse all minimal symbols in one objfile. */ 549 550 #define ALL_OBJFILE_MSYMBOLS(objfile, m) \ 551 for ((m) = (objfile) -> msymbols; SYMBOL_LINKAGE_NAME(m) != NULL; (m)++) 552 553 /* Traverse all symtabs in all objfiles in the current symbol 554 space. */ 555 556 #define ALL_SYMTABS(objfile, s) \ 557 ALL_OBJFILES (objfile) \ 558 ALL_OBJFILE_SYMTABS (objfile, s) 559 560 #define ALL_PSPACE_SYMTABS(ss, objfile, s) \ 561 ALL_PSPACE_OBJFILES (ss, objfile) \ 562 ALL_OBJFILE_SYMTABS (objfile, s) 563 564 /* Traverse all symtabs in all objfiles in the current program space, 565 skipping included files (which share a blockvector with their 566 primary symtab). */ 567 568 #define ALL_PRIMARY_SYMTABS(objfile, s) \ 569 ALL_OBJFILES (objfile) \ 570 ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s) 571 572 #define ALL_PSPACE_PRIMARY_SYMTABS(pspace, objfile, s) \ 573 ALL_PSPACE_OBJFILES (ss, objfile) \ 574 ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s) 575 576 /* Traverse all minimal symbols in all objfiles in the current symbol 577 space. */ 578 579 #define ALL_MSYMBOLS(objfile, m) \ 580 ALL_OBJFILES (objfile) \ 581 ALL_OBJFILE_MSYMBOLS (objfile, m) 582 583 #define ALL_OBJFILE_OSECTIONS(objfile, osect) \ 584 for (osect = objfile->sections; osect < objfile->sections_end; osect++) 585 586 /* Traverse all obj_sections in all objfiles in the current program 587 space. 588 589 Note that this detects a "break" in the inner loop, and exits 590 immediately from the outer loop as well, thus, client code doesn't 591 need to know that this is implemented with a double for. The extra 592 hair is to make sure that a "break;" stops the outer loop iterating 593 as well, and both OBJFILE and OSECT are left unmodified: 594 595 - The outer loop learns about the inner loop's end condition, and 596 stops iterating if it detects the inner loop didn't reach its 597 end. In other words, the outer loop keeps going only if the 598 inner loop reached its end cleanly [(osect) == 599 (objfile)->sections_end]. 600 601 - OSECT is initialized in the outer loop initialization 602 expressions, such as if the inner loop has reached its end, so 603 the check mentioned above succeeds the first time. 604 605 - The trick to not clearing OBJFILE on a "break;" is, in the outer 606 loop's loop expression, advance OBJFILE, but iff the inner loop 607 reached its end. If not, there was a "break;", so leave OBJFILE 608 as is; the outer loop's conditional will break immediately as 609 well (as OSECT will be different from OBJFILE->sections_end). */ 610 611 #define ALL_OBJSECTIONS(objfile, osect) \ 612 for ((objfile) = current_program_space->objfiles, \ 613 (objfile) != NULL ? ((osect) = (objfile)->sections_end) : 0; \ 614 (objfile) != NULL \ 615 && (osect) == (objfile)->sections_end; \ 616 ((osect) == (objfile)->sections_end \ 617 ? ((objfile) = (objfile)->next, \ 618 (objfile) != NULL ? (osect) = (objfile)->sections_end : 0) \ 619 : 0)) \ 620 for ((osect) = (objfile)->sections; \ 621 (osect) < (objfile)->sections_end; \ 622 (osect)++) 623 624 #define SECT_OFF_DATA(objfile) \ 625 ((objfile->sect_index_data == -1) \ 626 ? (internal_error (__FILE__, __LINE__, \ 627 _("sect_index_data not initialized")), -1) \ 628 : objfile->sect_index_data) 629 630 #define SECT_OFF_RODATA(objfile) \ 631 ((objfile->sect_index_rodata == -1) \ 632 ? (internal_error (__FILE__, __LINE__, \ 633 _("sect_index_rodata not initialized")), -1) \ 634 : objfile->sect_index_rodata) 635 636 #define SECT_OFF_TEXT(objfile) \ 637 ((objfile->sect_index_text == -1) \ 638 ? (internal_error (__FILE__, __LINE__, \ 639 _("sect_index_text not initialized")), -1) \ 640 : objfile->sect_index_text) 641 642 /* Sometimes the .bss section is missing from the objfile, so we don't 643 want to die here. Let the users of SECT_OFF_BSS deal with an 644 uninitialized section index. */ 645 #define SECT_OFF_BSS(objfile) (objfile)->sect_index_bss 646 647 /* Answer whether there is more than one object file loaded. */ 648 649 #define MULTI_OBJFILE_P() (object_files && object_files->next) 650 651 /* Reset the per-BFD storage area on OBJ. */ 652 653 void set_objfile_per_bfd (struct objfile *obj); 654 655 #endif /* !defined (OBJFILES_H) */ 656