1 /* Main header file for the bfd library -- portable access to object files. 2 3 Copyright (C) 1990-2014 Free Software Foundation, Inc. 4 5 Contributed by Cygnus Support. 6 7 This file is part of BFD, the Binary File Descriptor library. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program; if not, write to the Free Software 21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 22 23 #ifndef __BFD_H_SEEN__ 24 #define __BFD_H_SEEN__ 25 26 /* PR 14072: Ensure that config.h is included first. */ 27 #if !defined PACKAGE && !defined PACKAGE_VERSION 28 #error config.h must be included before this header 29 #endif 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 #include "ansidecl.h" 36 #include "symcat.h" 37 #include <sys/stat.h> 38 39 #if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE) 40 #ifndef SABER 41 /* This hack is to avoid a problem with some strict ANSI C preprocessors. 42 The problem is, "32_" is not a valid preprocessing token, and we don't 43 want extra underscores (e.g., "nlm_32_"). The XCONCAT2 macro will 44 cause the inner CONCAT2 macros to be evaluated first, producing 45 still-valid pp-tokens. Then the final concatenation can be done. */ 46 #undef CONCAT4 47 #define CONCAT4(a,b,c,d) XCONCAT2(CONCAT2(a,b),CONCAT2(c,d)) 48 #endif 49 #endif 50 51 /* This is a utility macro to handle the situation where the code 52 wants to place a constant string into the code, followed by a 53 comma and then the length of the string. Doing this by hand 54 is error prone, so using this macro is safer. */ 55 #define STRING_COMMA_LEN(STR) (STR), (sizeof (STR) - 1) 56 /* Unfortunately it is not possible to use the STRING_COMMA_LEN macro 57 to create the arguments to another macro, since the preprocessor 58 will mis-count the number of arguments to the outer macro (by not 59 evaluating STRING_COMMA_LEN and so missing the comma). This is a 60 problem for example when trying to use STRING_COMMA_LEN to build 61 the arguments to the strncmp() macro. Hence this alternative 62 definition of strncmp is provided here. 63 64 Note - these macros do NOT work if STR2 is not a constant string. */ 65 #define CONST_STRNEQ(STR1,STR2) (strncmp ((STR1), (STR2), sizeof (STR2) - 1) == 0) 66 /* strcpy() can have a similar problem, but since we know we are 67 copying a constant string, we can use memcpy which will be faster 68 since there is no need to check for a NUL byte inside STR. We 69 can also save time if we do not need to copy the terminating NUL. */ 70 #define LITMEMCPY(DEST,STR2) memcpy ((DEST), (STR2), sizeof (STR2) - 1) 71 #define LITSTRCPY(DEST,STR2) memcpy ((DEST), (STR2), sizeof (STR2)) 72 73 74 #define BFD_SUPPORTS_PLUGINS @supports_plugins@ 75 76 /* The word size used by BFD on the host. This may be 64 with a 32 77 bit target if the host is 64 bit, or if other 64 bit targets have 78 been selected with --enable-targets, or if --enable-64-bit-bfd. */ 79 #define BFD_ARCH_SIZE @wordsize@ 80 81 /* The word size of the default bfd target. */ 82 #define BFD_DEFAULT_TARGET_SIZE @bfd_default_target_size@ 83 84 #define BFD_HOST_64BIT_LONG @BFD_HOST_64BIT_LONG@ 85 #define BFD_HOST_64BIT_LONG_LONG @BFD_HOST_64BIT_LONG_LONG@ 86 #if @BFD_HOST_64_BIT_DEFINED@ 87 #define BFD_HOST_64_BIT @BFD_HOST_64_BIT@ 88 #define BFD_HOST_U_64_BIT @BFD_HOST_U_64_BIT@ 89 typedef BFD_HOST_64_BIT bfd_int64_t; 90 typedef BFD_HOST_U_64_BIT bfd_uint64_t; 91 #endif 92 93 #if BFD_ARCH_SIZE >= 64 94 #define BFD64 95 #endif 96 97 #ifndef INLINE 98 #if __GNUC__ >= 2 99 #define INLINE __inline__ 100 #else 101 #define INLINE 102 #endif 103 #endif 104 105 /* Declaring a type wide enough to hold a host long and a host pointer. */ 106 #define BFD_HOSTPTR_T @BFD_HOSTPTR_T@ 107 typedef BFD_HOSTPTR_T bfd_hostptr_t; 108 109 /* Forward declaration. */ 110 typedef struct bfd bfd; 111 112 /* Boolean type used in bfd. Too many systems define their own 113 versions of "boolean" for us to safely typedef a "boolean" of 114 our own. Using an enum for "bfd_boolean" has its own set of 115 problems, with strange looking casts required to avoid warnings 116 on some older compilers. Thus we just use an int. 117 118 General rule: Functions which are bfd_boolean return TRUE on 119 success and FALSE on failure (unless they're a predicate). */ 120 121 typedef int bfd_boolean; 122 #undef FALSE 123 #undef TRUE 124 #define FALSE 0 125 #define TRUE 1 126 127 #ifdef BFD64 128 129 #ifndef BFD_HOST_64_BIT 130 #error No 64 bit integer type available 131 #endif /* ! defined (BFD_HOST_64_BIT) */ 132 133 typedef BFD_HOST_U_64_BIT bfd_vma; 134 typedef BFD_HOST_64_BIT bfd_signed_vma; 135 typedef BFD_HOST_U_64_BIT bfd_size_type; 136 typedef BFD_HOST_U_64_BIT symvalue; 137 138 #if BFD_HOST_64BIT_LONG 139 #define BFD_VMA_FMT "l" 140 #elif defined (__MSVCRT__) 141 #define BFD_VMA_FMT "I64" 142 #else 143 #define BFD_VMA_FMT "ll" 144 #endif 145 146 #ifndef fprintf_vma 147 #define sprintf_vma(s,x) sprintf (s, "%016" BFD_VMA_FMT "x", x) 148 #define fprintf_vma(f,x) fprintf (f, "%016" BFD_VMA_FMT "x", x) 149 #endif 150 151 #else /* not BFD64 */ 152 153 /* Represent a target address. Also used as a generic unsigned type 154 which is guaranteed to be big enough to hold any arithmetic types 155 we need to deal with. */ 156 typedef unsigned long bfd_vma; 157 158 /* A generic signed type which is guaranteed to be big enough to hold any 159 arithmetic types we need to deal with. Can be assumed to be compatible 160 with bfd_vma in the same way that signed and unsigned ints are compatible 161 (as parameters, in assignment, etc). */ 162 typedef long bfd_signed_vma; 163 164 typedef unsigned long symvalue; 165 typedef unsigned long bfd_size_type; 166 167 /* Print a bfd_vma x on stream s. */ 168 #define BFD_VMA_FMT "l" 169 #define fprintf_vma(s,x) fprintf (s, "%08" BFD_VMA_FMT "x", x) 170 #define sprintf_vma(s,x) sprintf (s, "%08" BFD_VMA_FMT "x", x) 171 172 #endif /* not BFD64 */ 173 174 #define HALF_BFD_SIZE_TYPE \ 175 (((bfd_size_type) 1) << (8 * sizeof (bfd_size_type) / 2)) 176 177 #ifndef BFD_HOST_64_BIT 178 /* Fall back on a 32 bit type. The idea is to make these types always 179 available for function return types, but in the case that 180 BFD_HOST_64_BIT is undefined such a function should abort or 181 otherwise signal an error. */ 182 typedef bfd_signed_vma bfd_int64_t; 183 typedef bfd_vma bfd_uint64_t; 184 #endif 185 186 /* An offset into a file. BFD always uses the largest possible offset 187 based on the build time availability of fseek, fseeko, or fseeko64. */ 188 typedef @bfd_file_ptr@ file_ptr; 189 typedef unsigned @bfd_file_ptr@ ufile_ptr; 190 191 extern void bfd_sprintf_vma (bfd *, char *, bfd_vma); 192 extern void bfd_fprintf_vma (bfd *, void *, bfd_vma); 193 194 #define printf_vma(x) fprintf_vma(stdout,x) 195 #define bfd_printf_vma(abfd,x) bfd_fprintf_vma (abfd,stdout,x) 196 197 typedef unsigned int flagword; /* 32 bits of flags */ 198 typedef unsigned char bfd_byte; 199 200 /* File formats. */ 201 202 typedef enum bfd_format 203 { 204 bfd_unknown = 0, /* File format is unknown. */ 205 bfd_object, /* Linker/assembler/compiler output. */ 206 bfd_archive, /* Object archive file. */ 207 bfd_core, /* Core dump. */ 208 bfd_type_end /* Marks the end; don't use it! */ 209 } 210 bfd_format; 211 212 /* Symbols and relocation. */ 213 214 /* A count of carsyms (canonical archive symbols). */ 215 typedef unsigned long symindex; 216 217 /* How to perform a relocation. */ 218 typedef const struct reloc_howto_struct reloc_howto_type; 219 220 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0) 221 222 /* General purpose part of a symbol X; 223 target specific parts are in libcoff.h, libaout.h, etc. */ 224 225 #define bfd_get_section(x) ((x)->section) 226 #define bfd_get_output_section(x) ((x)->section->output_section) 227 #define bfd_set_section(x,y) ((x)->section) = (y) 228 #define bfd_asymbol_base(x) ((x)->section->vma) 229 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value) 230 #define bfd_asymbol_name(x) ((x)->name) 231 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/ 232 #define bfd_asymbol_bfd(x) ((x)->the_bfd) 233 #define bfd_asymbol_flavour(x) \ 234 (((x)->flags & BSF_SYNTHETIC) != 0 \ 235 ? bfd_target_unknown_flavour \ 236 : bfd_asymbol_bfd (x)->xvec->flavour) 237 238 /* A canonical archive symbol. */ 239 /* This is a type pun with struct ranlib on purpose! */ 240 typedef struct carsym 241 { 242 char *name; 243 file_ptr file_offset; /* Look here to find the file. */ 244 } 245 carsym; /* To make these you call a carsymogen. */ 246 247 /* Used in generating armaps (archive tables of contents). 248 Perhaps just a forward definition would do? */ 249 struct orl /* Output ranlib. */ 250 { 251 char **name; /* Symbol name. */ 252 union 253 { 254 file_ptr pos; 255 bfd *abfd; 256 } u; /* bfd* or file position. */ 257 int namidx; /* Index into string table. */ 258 }; 259 260 /* Linenumber stuff. */ 261 typedef struct lineno_cache_entry 262 { 263 unsigned int line_number; /* Linenumber from start of function. */ 264 union 265 { 266 struct bfd_symbol *sym; /* Function name. */ 267 bfd_vma offset; /* Offset into section. */ 268 } u; 269 } 270 alent; 271 272 /* Object and core file sections. */ 273 274 #define align_power(addr, align) \ 275 (((addr) + ((bfd_vma) 1 << (align)) - 1) & ((bfd_vma) -1 << (align))) 276 277 typedef struct bfd_section *sec_ptr; 278 279 #define bfd_get_section_name(bfd, ptr) ((void) bfd, (ptr)->name) 280 #define bfd_get_section_vma(bfd, ptr) ((void) bfd, (ptr)->vma) 281 #define bfd_get_section_lma(bfd, ptr) ((void) bfd, (ptr)->lma) 282 #define bfd_get_section_alignment(bfd, ptr) ((void) bfd, \ 283 (ptr)->alignment_power) 284 #define bfd_section_name(bfd, ptr) ((ptr)->name) 285 #define bfd_section_size(bfd, ptr) ((ptr)->size) 286 #define bfd_get_section_size(ptr) ((ptr)->size) 287 #define bfd_section_vma(bfd, ptr) ((ptr)->vma) 288 #define bfd_section_lma(bfd, ptr) ((ptr)->lma) 289 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power) 290 #define bfd_get_section_flags(bfd, ptr) ((void) bfd, (ptr)->flags) 291 #define bfd_get_section_userdata(bfd, ptr) ((void) bfd, (ptr)->userdata) 292 293 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0) 294 295 /* Find the address one past the end of SEC. */ 296 #define bfd_get_section_limit(bfd, sec) \ 297 (((bfd)->direction != write_direction && (sec)->rawsize != 0 \ 298 ? (sec)->rawsize : (sec)->size) / bfd_octets_per_byte (bfd)) 299 300 /* Return TRUE if input section SEC has been discarded. */ 301 #define discarded_section(sec) \ 302 (!bfd_is_abs_section (sec) \ 303 && bfd_is_abs_section ((sec)->output_section) \ 304 && (sec)->sec_info_type != SEC_INFO_TYPE_MERGE \ 305 && (sec)->sec_info_type != SEC_INFO_TYPE_JUST_SYMS) 306 307 typedef enum bfd_print_symbol 308 { 309 bfd_print_symbol_name, 310 bfd_print_symbol_more, 311 bfd_print_symbol_all 312 } bfd_print_symbol_type; 313 314 /* Information about a symbol that nm needs. */ 315 316 typedef struct _symbol_info 317 { 318 symvalue value; 319 char type; 320 const char *name; /* Symbol name. */ 321 unsigned char stab_type; /* Stab type. */ 322 char stab_other; /* Stab other. */ 323 short stab_desc; /* Stab desc. */ 324 const char *stab_name; /* String for stab type. */ 325 } symbol_info; 326 327 /* Get the name of a stabs type code. */ 328 329 extern const char *bfd_get_stab_name (int); 330 331 /* Hash table routines. There is no way to free up a hash table. */ 332 333 /* An element in the hash table. Most uses will actually use a larger 334 structure, and an instance of this will be the first field. */ 335 336 struct bfd_hash_entry 337 { 338 /* Next entry for this hash code. */ 339 struct bfd_hash_entry *next; 340 /* String being hashed. */ 341 const char *string; 342 /* Hash code. This is the full hash code, not the index into the 343 table. */ 344 unsigned long hash; 345 }; 346 347 /* A hash table. */ 348 349 struct bfd_hash_table 350 { 351 /* The hash array. */ 352 struct bfd_hash_entry **table; 353 /* A function used to create new elements in the hash table. The 354 first entry is itself a pointer to an element. When this 355 function is first invoked, this pointer will be NULL. However, 356 having the pointer permits a hierarchy of method functions to be 357 built each of which calls the function in the superclass. Thus 358 each function should be written to allocate a new block of memory 359 only if the argument is NULL. */ 360 struct bfd_hash_entry *(*newfunc) 361 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 362 /* An objalloc for this hash table. This is a struct objalloc *, 363 but we use void * to avoid requiring the inclusion of objalloc.h. */ 364 void *memory; 365 /* The number of slots in the hash table. */ 366 unsigned int size; 367 /* The number of entries in the hash table. */ 368 unsigned int count; 369 /* The size of elements. */ 370 unsigned int entsize; 371 /* If non-zero, don't grow the hash table. */ 372 unsigned int frozen:1; 373 }; 374 375 /* Initialize a hash table. */ 376 extern bfd_boolean bfd_hash_table_init 377 (struct bfd_hash_table *, 378 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 379 struct bfd_hash_table *, 380 const char *), 381 unsigned int); 382 383 /* Initialize a hash table specifying a size. */ 384 extern bfd_boolean bfd_hash_table_init_n 385 (struct bfd_hash_table *, 386 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 387 struct bfd_hash_table *, 388 const char *), 389 unsigned int, unsigned int); 390 391 /* Free up a hash table. */ 392 extern void bfd_hash_table_free 393 (struct bfd_hash_table *); 394 395 /* Look up a string in a hash table. If CREATE is TRUE, a new entry 396 will be created for this string if one does not already exist. The 397 COPY argument must be TRUE if this routine should copy the string 398 into newly allocated memory when adding an entry. */ 399 extern struct bfd_hash_entry *bfd_hash_lookup 400 (struct bfd_hash_table *, const char *, bfd_boolean create, 401 bfd_boolean copy); 402 403 /* Insert an entry in a hash table. */ 404 extern struct bfd_hash_entry *bfd_hash_insert 405 (struct bfd_hash_table *, const char *, unsigned long); 406 407 /* Rename an entry in a hash table. */ 408 extern void bfd_hash_rename 409 (struct bfd_hash_table *, const char *, struct bfd_hash_entry *); 410 411 /* Replace an entry in a hash table. */ 412 extern void bfd_hash_replace 413 (struct bfd_hash_table *, struct bfd_hash_entry *old, 414 struct bfd_hash_entry *nw); 415 416 /* Base method for creating a hash table entry. */ 417 extern struct bfd_hash_entry *bfd_hash_newfunc 418 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 419 420 /* Grab some space for a hash table entry. */ 421 extern void *bfd_hash_allocate 422 (struct bfd_hash_table *, unsigned int); 423 424 /* Traverse a hash table in a random order, calling a function on each 425 element. If the function returns FALSE, the traversal stops. The 426 INFO argument is passed to the function. */ 427 extern void bfd_hash_traverse 428 (struct bfd_hash_table *, 429 bfd_boolean (*) (struct bfd_hash_entry *, void *), 430 void *info); 431 432 /* Allows the default size of a hash table to be configured. New hash 433 tables allocated using bfd_hash_table_init will be created with 434 this size. */ 435 extern unsigned long bfd_hash_set_default_size (unsigned long); 436 437 /* This structure is used to keep track of stabs in sections 438 information while linking. */ 439 440 struct stab_info 441 { 442 /* A hash table used to hold stabs strings. */ 443 struct bfd_strtab_hash *strings; 444 /* The header file hash table. */ 445 struct bfd_hash_table includes; 446 /* The first .stabstr section. */ 447 struct bfd_section *stabstr; 448 }; 449 450 #define COFF_SWAP_TABLE (void *) &bfd_coff_std_swap_table 451 452 /* User program access to BFD facilities. */ 453 454 /* Direct I/O routines, for programs which know more about the object 455 file than BFD does. Use higher level routines if possible. */ 456 457 extern bfd_size_type bfd_bread (void *, bfd_size_type, bfd *); 458 extern bfd_size_type bfd_bwrite (const void *, bfd_size_type, bfd *); 459 extern int bfd_seek (bfd *, file_ptr, int); 460 extern file_ptr bfd_tell (bfd *); 461 extern int bfd_flush (bfd *); 462 extern int bfd_stat (bfd *, struct stat *); 463 464 /* Deprecated old routines. */ 465 #if __GNUC__ 466 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD) \ 467 (warn_deprecated ("bfd_read", __FILE__, __LINE__, __FUNCTION__), \ 468 bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 469 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD) \ 470 (warn_deprecated ("bfd_write", __FILE__, __LINE__, __FUNCTION__), \ 471 bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 472 #else 473 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD) \ 474 (warn_deprecated ("bfd_read", (const char *) 0, 0, (const char *) 0), \ 475 bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 476 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD) \ 477 (warn_deprecated ("bfd_write", (const char *) 0, 0, (const char *) 0),\ 478 bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 479 #endif 480 extern void warn_deprecated (const char *, const char *, int, const char *); 481 482 /* Cast from const char * to char * so that caller can assign to 483 a char * without a warning. */ 484 #define bfd_get_filename(abfd) ((char *) (abfd)->filename) 485 #define bfd_get_cacheable(abfd) ((abfd)->cacheable) 486 #define bfd_get_format(abfd) ((abfd)->format) 487 #define bfd_get_target(abfd) ((abfd)->xvec->name) 488 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour) 489 #define bfd_family_coff(abfd) \ 490 (bfd_get_flavour (abfd) == bfd_target_coff_flavour || \ 491 bfd_get_flavour (abfd) == bfd_target_xcoff_flavour) 492 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG) 493 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE) 494 #define bfd_header_big_endian(abfd) \ 495 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG) 496 #define bfd_header_little_endian(abfd) \ 497 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE) 498 #define bfd_get_file_flags(abfd) ((abfd)->flags) 499 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags) 500 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags) 501 #define bfd_my_archive(abfd) ((abfd)->my_archive) 502 #define bfd_has_map(abfd) ((abfd)->has_armap) 503 #define bfd_is_thin_archive(abfd) ((abfd)->is_thin_archive) 504 505 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types) 506 #define bfd_usrdata(abfd) ((abfd)->usrdata) 507 508 #define bfd_get_start_address(abfd) ((abfd)->start_address) 509 #define bfd_get_symcount(abfd) ((abfd)->symcount) 510 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols) 511 #define bfd_count_sections(abfd) ((abfd)->section_count) 512 513 #define bfd_get_dynamic_symcount(abfd) ((abfd)->dynsymcount) 514 515 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char) 516 517 extern bfd_boolean bfd_cache_close 518 (bfd *abfd); 519 /* NB: This declaration should match the autogenerated one in libbfd.h. */ 520 521 extern bfd_boolean bfd_cache_close_all (void); 522 523 extern bfd_boolean bfd_record_phdr 524 (bfd *, unsigned long, bfd_boolean, flagword, bfd_boolean, bfd_vma, 525 bfd_boolean, bfd_boolean, unsigned int, struct bfd_section **); 526 527 /* Byte swapping routines. */ 528 529 bfd_uint64_t bfd_getb64 (const void *); 530 bfd_uint64_t bfd_getl64 (const void *); 531 bfd_int64_t bfd_getb_signed_64 (const void *); 532 bfd_int64_t bfd_getl_signed_64 (const void *); 533 bfd_vma bfd_getb32 (const void *); 534 bfd_vma bfd_getl32 (const void *); 535 bfd_signed_vma bfd_getb_signed_32 (const void *); 536 bfd_signed_vma bfd_getl_signed_32 (const void *); 537 bfd_vma bfd_getb16 (const void *); 538 bfd_vma bfd_getl16 (const void *); 539 bfd_signed_vma bfd_getb_signed_16 (const void *); 540 bfd_signed_vma bfd_getl_signed_16 (const void *); 541 void bfd_putb64 (bfd_uint64_t, void *); 542 void bfd_putl64 (bfd_uint64_t, void *); 543 void bfd_putb32 (bfd_vma, void *); 544 void bfd_putl32 (bfd_vma, void *); 545 void bfd_putb16 (bfd_vma, void *); 546 void bfd_putl16 (bfd_vma, void *); 547 548 /* Byte swapping routines which take size and endiannes as arguments. */ 549 550 bfd_uint64_t bfd_get_bits (const void *, int, bfd_boolean); 551 void bfd_put_bits (bfd_uint64_t, void *, int, bfd_boolean); 552 553 #if defined(__STDC__) || defined(ALMOST_STDC) 554 struct ecoff_debug_info; 555 struct ecoff_debug_swap; 556 struct ecoff_extr; 557 struct bfd_symbol; 558 struct bfd_link_info; 559 struct bfd_link_hash_entry; 560 struct bfd_section_already_linked; 561 struct bfd_elf_version_tree; 562 #endif 563 564 extern bfd_boolean bfd_section_already_linked_table_init (void); 565 extern void bfd_section_already_linked_table_free (void); 566 extern bfd_boolean _bfd_handle_already_linked 567 (struct bfd_section *, struct bfd_section_already_linked *, 568 struct bfd_link_info *); 569 570 /* Externally visible ECOFF routines. */ 571 572 extern bfd_vma bfd_ecoff_get_gp_value 573 (bfd * abfd); 574 extern bfd_boolean bfd_ecoff_set_gp_value 575 (bfd *abfd, bfd_vma gp_value); 576 extern bfd_boolean bfd_ecoff_set_regmasks 577 (bfd *abfd, unsigned long gprmask, unsigned long fprmask, 578 unsigned long *cprmask); 579 extern void *bfd_ecoff_debug_init 580 (bfd *output_bfd, struct ecoff_debug_info *output_debug, 581 const struct ecoff_debug_swap *output_swap, struct bfd_link_info *); 582 extern void bfd_ecoff_debug_free 583 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 584 const struct ecoff_debug_swap *output_swap, struct bfd_link_info *); 585 extern bfd_boolean bfd_ecoff_debug_accumulate 586 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 587 const struct ecoff_debug_swap *output_swap, bfd *input_bfd, 588 struct ecoff_debug_info *input_debug, 589 const struct ecoff_debug_swap *input_swap, struct bfd_link_info *); 590 extern bfd_boolean bfd_ecoff_debug_accumulate_other 591 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 592 const struct ecoff_debug_swap *output_swap, bfd *input_bfd, 593 struct bfd_link_info *); 594 extern bfd_boolean bfd_ecoff_debug_externals 595 (bfd *abfd, struct ecoff_debug_info *debug, 596 const struct ecoff_debug_swap *swap, bfd_boolean relocatable, 597 bfd_boolean (*get_extr) (struct bfd_symbol *, struct ecoff_extr *), 598 void (*set_index) (struct bfd_symbol *, bfd_size_type)); 599 extern bfd_boolean bfd_ecoff_debug_one_external 600 (bfd *abfd, struct ecoff_debug_info *debug, 601 const struct ecoff_debug_swap *swap, const char *name, 602 struct ecoff_extr *esym); 603 extern bfd_size_type bfd_ecoff_debug_size 604 (bfd *abfd, struct ecoff_debug_info *debug, 605 const struct ecoff_debug_swap *swap); 606 extern bfd_boolean bfd_ecoff_write_debug 607 (bfd *abfd, struct ecoff_debug_info *debug, 608 const struct ecoff_debug_swap *swap, file_ptr where); 609 extern bfd_boolean bfd_ecoff_write_accumulated_debug 610 (void *handle, bfd *abfd, struct ecoff_debug_info *debug, 611 const struct ecoff_debug_swap *swap, 612 struct bfd_link_info *info, file_ptr where); 613 614 /* Externally visible ELF routines. */ 615 616 struct bfd_link_needed_list 617 { 618 struct bfd_link_needed_list *next; 619 bfd *by; 620 const char *name; 621 }; 622 623 enum dynamic_lib_link_class { 624 DYN_NORMAL = 0, 625 DYN_AS_NEEDED = 1, 626 DYN_DT_NEEDED = 2, 627 DYN_NO_ADD_NEEDED = 4, 628 DYN_NO_NEEDED = 8 629 }; 630 631 enum notice_asneeded_action { 632 notice_as_needed, 633 notice_not_needed, 634 notice_needed 635 }; 636 637 extern bfd_boolean bfd_elf_record_link_assignment 638 (bfd *, struct bfd_link_info *, const char *, bfd_boolean, 639 bfd_boolean); 640 extern struct bfd_link_needed_list *bfd_elf_get_needed_list 641 (bfd *, struct bfd_link_info *); 642 extern bfd_boolean bfd_elf_get_bfd_needed_list 643 (bfd *, struct bfd_link_needed_list **); 644 extern bfd_boolean bfd_elf_stack_segment_size (bfd *, struct bfd_link_info *, 645 const char *, bfd_vma); 646 extern bfd_boolean bfd_elf_size_dynamic_sections 647 (bfd *, const char *, const char *, const char *, const char *, const char *, 648 const char * const *, struct bfd_link_info *, struct bfd_section **); 649 extern bfd_boolean bfd_elf_size_dynsym_hash_dynstr 650 (bfd *, struct bfd_link_info *); 651 extern void bfd_elf_set_dt_needed_name 652 (bfd *, const char *); 653 extern const char *bfd_elf_get_dt_soname 654 (bfd *); 655 extern void bfd_elf_set_dyn_lib_class 656 (bfd *, enum dynamic_lib_link_class); 657 extern int bfd_elf_get_dyn_lib_class 658 (bfd *); 659 extern struct bfd_link_needed_list *bfd_elf_get_runpath_list 660 (bfd *, struct bfd_link_info *); 661 extern int bfd_elf_discard_info 662 (bfd *, struct bfd_link_info *); 663 extern unsigned int _bfd_elf_default_action_discarded 664 (struct bfd_section *); 665 666 /* Return an upper bound on the number of bytes required to store a 667 copy of ABFD's program header table entries. Return -1 if an error 668 occurs; bfd_get_error will return an appropriate code. */ 669 extern long bfd_get_elf_phdr_upper_bound 670 (bfd *abfd); 671 672 /* Copy ABFD's program header table entries to *PHDRS. The entries 673 will be stored as an array of Elf_Internal_Phdr structures, as 674 defined in include/elf/internal.h. To find out how large the 675 buffer needs to be, call bfd_get_elf_phdr_upper_bound. 676 677 Return the number of program header table entries read, or -1 if an 678 error occurs; bfd_get_error will return an appropriate code. */ 679 extern int bfd_get_elf_phdrs 680 (bfd *abfd, void *phdrs); 681 682 /* Create a new BFD as if by bfd_openr. Rather than opening a file, 683 reconstruct an ELF file by reading the segments out of remote 684 memory based on the ELF file header at EHDR_VMA and the ELF program 685 headers it points to. If non-zero, SIZE is the known extent of the 686 object. If not null, *LOADBASEP is filled in with the difference 687 between the VMAs from which the segments were read, and the VMAs 688 the file headers (and hence BFD's idea of each section's VMA) put 689 them at. 690 691 The function TARGET_READ_MEMORY is called to copy LEN bytes from 692 the remote memory at target address VMA into the local buffer at 693 MYADDR; it should return zero on success or an `errno' code on 694 failure. TEMPL must be a BFD for a target with the word size and 695 byte order found in the remote memory. */ 696 extern bfd *bfd_elf_bfd_from_remote_memory 697 (bfd *templ, bfd_vma ehdr_vma, bfd_size_type size, bfd_vma *loadbasep, 698 int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr, 699 bfd_size_type len)); 700 701 extern struct bfd_section *_bfd_elf_tls_setup 702 (bfd *, struct bfd_link_info *); 703 704 extern struct bfd_section * 705 _bfd_nearby_section (bfd *, struct bfd_section *, bfd_vma); 706 707 extern void _bfd_fix_excluded_sec_syms 708 (bfd *, struct bfd_link_info *); 709 710 extern unsigned bfd_m68k_mach_to_features (int); 711 712 extern int bfd_m68k_features_to_mach (unsigned); 713 714 extern bfd_boolean bfd_m68k_elf32_create_embedded_relocs 715 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 716 char **); 717 718 extern void bfd_elf_m68k_set_target_options (struct bfd_link_info *, int); 719 720 extern bfd_boolean bfd_bfin_elf32_create_embedded_relocs 721 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 722 char **); 723 724 extern bfd_boolean bfd_cr16_elf32_create_embedded_relocs 725 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 726 char **); 727 728 /* SunOS shared library support routines for the linker. */ 729 730 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list 731 (bfd *, struct bfd_link_info *); 732 extern bfd_boolean bfd_sunos_record_link_assignment 733 (bfd *, struct bfd_link_info *, const char *); 734 extern bfd_boolean bfd_sunos_size_dynamic_sections 735 (bfd *, struct bfd_link_info *, struct bfd_section **, 736 struct bfd_section **, struct bfd_section **); 737 738 /* Linux shared library support routines for the linker. */ 739 740 extern bfd_boolean bfd_i386linux_size_dynamic_sections 741 (bfd *, struct bfd_link_info *); 742 extern bfd_boolean bfd_m68klinux_size_dynamic_sections 743 (bfd *, struct bfd_link_info *); 744 extern bfd_boolean bfd_sparclinux_size_dynamic_sections 745 (bfd *, struct bfd_link_info *); 746 747 /* mmap hacks */ 748 749 struct _bfd_window_internal; 750 typedef struct _bfd_window_internal bfd_window_internal; 751 752 typedef struct _bfd_window 753 { 754 /* What the user asked for. */ 755 void *data; 756 bfd_size_type size; 757 /* The actual window used by BFD. Small user-requested read-only 758 regions sharing a page may share a single window into the object 759 file. Read-write versions shouldn't until I've fixed things to 760 keep track of which portions have been claimed by the 761 application; don't want to give the same region back when the 762 application wants two writable copies! */ 763 struct _bfd_window_internal *i; 764 } 765 bfd_window; 766 767 extern void bfd_init_window 768 (bfd_window *); 769 extern void bfd_free_window 770 (bfd_window *); 771 extern bfd_boolean bfd_get_file_window 772 (bfd *, file_ptr, bfd_size_type, bfd_window *, bfd_boolean); 773 774 /* XCOFF support routines for the linker. */ 775 776 extern bfd_boolean bfd_xcoff_split_import_path 777 (bfd *, const char *, const char **, const char **); 778 extern bfd_boolean bfd_xcoff_set_archive_import_path 779 (struct bfd_link_info *, bfd *, const char *); 780 extern bfd_boolean bfd_xcoff_link_record_set 781 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_size_type); 782 extern bfd_boolean bfd_xcoff_import_symbol 783 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_vma, 784 const char *, const char *, const char *, unsigned int); 785 extern bfd_boolean bfd_xcoff_export_symbol 786 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *); 787 extern bfd_boolean bfd_xcoff_link_count_reloc 788 (bfd *, struct bfd_link_info *, const char *); 789 extern bfd_boolean bfd_xcoff_record_link_assignment 790 (bfd *, struct bfd_link_info *, const char *); 791 extern bfd_boolean bfd_xcoff_size_dynamic_sections 792 (bfd *, struct bfd_link_info *, const char *, const char *, 793 unsigned long, unsigned long, unsigned long, bfd_boolean, 794 int, bfd_boolean, unsigned int, struct bfd_section **, bfd_boolean); 795 extern bfd_boolean bfd_xcoff_link_generate_rtinit 796 (bfd *, const char *, const char *, bfd_boolean); 797 798 /* XCOFF support routines for ar. */ 799 extern bfd_boolean bfd_xcoff_ar_archive_set_magic 800 (bfd *, char *); 801 802 /* Externally visible COFF routines. */ 803 804 #if defined(__STDC__) || defined(ALMOST_STDC) 805 struct internal_syment; 806 union internal_auxent; 807 #endif 808 809 extern bfd_boolean bfd_coff_get_syment 810 (bfd *, struct bfd_symbol *, struct internal_syment *); 811 812 extern bfd_boolean bfd_coff_get_auxent 813 (bfd *, struct bfd_symbol *, int, union internal_auxent *); 814 815 extern bfd_boolean bfd_coff_set_symbol_class 816 (bfd *, struct bfd_symbol *, unsigned int); 817 818 extern bfd_boolean bfd_m68k_coff_create_embedded_relocs 819 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, char **); 820 821 /* ARM VFP11 erratum workaround support. */ 822 typedef enum 823 { 824 BFD_ARM_VFP11_FIX_DEFAULT, 825 BFD_ARM_VFP11_FIX_NONE, 826 BFD_ARM_VFP11_FIX_SCALAR, 827 BFD_ARM_VFP11_FIX_VECTOR 828 } bfd_arm_vfp11_fix; 829 830 extern void bfd_elf32_arm_init_maps 831 (bfd *); 832 833 extern void bfd_elf32_arm_set_vfp11_fix 834 (bfd *, struct bfd_link_info *); 835 836 extern void bfd_elf32_arm_set_cortex_a8_fix 837 (bfd *, struct bfd_link_info *); 838 839 extern bfd_boolean bfd_elf32_arm_vfp11_erratum_scan 840 (bfd *, struct bfd_link_info *); 841 842 extern void bfd_elf32_arm_vfp11_fix_veneer_locations 843 (bfd *, struct bfd_link_info *); 844 845 /* ARM Interworking support. Called from linker. */ 846 extern bfd_boolean bfd_arm_allocate_interworking_sections 847 (struct bfd_link_info *); 848 849 extern bfd_boolean bfd_arm_process_before_allocation 850 (bfd *, struct bfd_link_info *, int); 851 852 extern bfd_boolean bfd_arm_get_bfd_for_interworking 853 (bfd *, struct bfd_link_info *); 854 855 /* PE ARM Interworking support. Called from linker. */ 856 extern bfd_boolean bfd_arm_pe_allocate_interworking_sections 857 (struct bfd_link_info *); 858 859 extern bfd_boolean bfd_arm_pe_process_before_allocation 860 (bfd *, struct bfd_link_info *, int); 861 862 extern bfd_boolean bfd_arm_pe_get_bfd_for_interworking 863 (bfd *, struct bfd_link_info *); 864 865 /* ELF ARM Interworking support. Called from linker. */ 866 extern bfd_boolean bfd_elf32_arm_allocate_interworking_sections 867 (struct bfd_link_info *); 868 869 extern bfd_boolean bfd_elf32_arm_process_before_allocation 870 (bfd *, struct bfd_link_info *); 871 872 void bfd_elf32_arm_set_target_relocs 873 (bfd *, struct bfd_link_info *, int, char *, int, int, bfd_arm_vfp11_fix, 874 int, int, int, int, int); 875 876 extern bfd_boolean bfd_elf32_arm_get_bfd_for_interworking 877 (bfd *, struct bfd_link_info *); 878 879 extern bfd_boolean bfd_elf32_arm_add_glue_sections_to_bfd 880 (bfd *, struct bfd_link_info *); 881 882 /* ELF ARM mapping symbol support. */ 883 #define BFD_ARM_SPECIAL_SYM_TYPE_MAP (1 << 0) 884 #define BFD_ARM_SPECIAL_SYM_TYPE_TAG (1 << 1) 885 #define BFD_ARM_SPECIAL_SYM_TYPE_OTHER (1 << 2) 886 #define BFD_ARM_SPECIAL_SYM_TYPE_ANY (~0) 887 888 extern bfd_boolean bfd_is_arm_special_symbol_name 889 (const char *, int); 890 891 extern void bfd_elf32_arm_set_byteswap_code 892 (struct bfd_link_info *, int); 893 894 extern void bfd_elf32_arm_use_long_plt (void); 895 896 /* ARM Note section processing. */ 897 extern bfd_boolean bfd_arm_merge_machines 898 (bfd *, bfd *); 899 900 extern bfd_boolean bfd_arm_update_notes 901 (bfd *, const char *); 902 903 extern unsigned int bfd_arm_get_mach_from_notes 904 (bfd *, const char *); 905 906 /* ARM stub generation support. Called from the linker. */ 907 extern int elf32_arm_setup_section_lists 908 (bfd *, struct bfd_link_info *); 909 extern void elf32_arm_next_input_section 910 (struct bfd_link_info *, struct bfd_section *); 911 extern bfd_boolean elf32_arm_size_stubs 912 (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, 913 struct bfd_section * (*) (const char *, struct bfd_section *, unsigned int), 914 void (*) (void)); 915 extern bfd_boolean elf32_arm_build_stubs 916 (struct bfd_link_info *); 917 918 /* ARM unwind section editing support. */ 919 extern bfd_boolean elf32_arm_fix_exidx_coverage 920 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean); 921 922 /* C6x unwind section editing support. */ 923 extern bfd_boolean elf32_tic6x_fix_exidx_coverage 924 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean); 925 926 /* PowerPC @tls opcode transform/validate. */ 927 extern unsigned int _bfd_elf_ppc_at_tls_transform 928 (unsigned int, unsigned int); 929 /* PowerPC @tprel opcode transform/validate. */ 930 extern unsigned int _bfd_elf_ppc_at_tprel_transform 931 (unsigned int, unsigned int); 932 933 extern void bfd_elf64_aarch64_init_maps 934 (bfd *); 935 936 extern void bfd_elf32_aarch64_init_maps 937 (bfd *); 938 939 extern void bfd_elf64_aarch64_set_options 940 (bfd *, struct bfd_link_info *, int, int, int, int, int); 941 942 extern void bfd_elf32_aarch64_set_options 943 (bfd *, struct bfd_link_info *, int, int, int, int, int); 944 945 /* ELF AArch64 mapping symbol support. */ 946 #define BFD_AARCH64_SPECIAL_SYM_TYPE_MAP (1 << 0) 947 #define BFD_AARCH64_SPECIAL_SYM_TYPE_TAG (1 << 1) 948 #define BFD_AARCH64_SPECIAL_SYM_TYPE_OTHER (1 << 2) 949 #define BFD_AARCH64_SPECIAL_SYM_TYPE_ANY (~0) 950 extern bfd_boolean bfd_is_aarch64_special_symbol_name 951 (const char * name, int type); 952 953 /* AArch64 stub generation support for ELF64. Called from the linker. */ 954 extern int elf64_aarch64_setup_section_lists 955 (bfd *, struct bfd_link_info *); 956 extern void elf64_aarch64_next_input_section 957 (struct bfd_link_info *, struct bfd_section *); 958 extern bfd_boolean elf64_aarch64_size_stubs 959 (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, 960 struct bfd_section * (*) (const char *, struct bfd_section *), 961 void (*) (void)); 962 extern bfd_boolean elf64_aarch64_build_stubs 963 (struct bfd_link_info *); 964 /* AArch64 stub generation support for ELF32. Called from the linker. */ 965 extern int elf32_aarch64_setup_section_lists 966 (bfd *, struct bfd_link_info *); 967 extern void elf32_aarch64_next_input_section 968 (struct bfd_link_info *, struct bfd_section *); 969 extern bfd_boolean elf32_aarch64_size_stubs 970 (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, 971 struct bfd_section * (*) (const char *, struct bfd_section *), 972 void (*) (void)); 973 extern bfd_boolean elf32_aarch64_build_stubs 974 (struct bfd_link_info *); 975 976 977 /* TI COFF load page support. */ 978 extern void bfd_ticoff_set_section_load_page 979 (struct bfd_section *, int); 980 981 extern int bfd_ticoff_get_section_load_page 982 (struct bfd_section *); 983 984 /* H8/300 functions. */ 985 extern bfd_vma bfd_h8300_pad_address 986 (bfd *, bfd_vma); 987 988 /* IA64 Itanium code generation. Called from linker. */ 989 extern void bfd_elf32_ia64_after_parse 990 (int); 991 992 extern void bfd_elf64_ia64_after_parse 993 (int); 994 995 /* This structure is used for a comdat section, as in PE. A comdat 996 section is associated with a particular symbol. When the linker 997 sees a comdat section, it keeps only one of the sections with a 998 given name and associated with a given symbol. */ 999 1000 struct coff_comdat_info 1001 { 1002 /* The name of the symbol associated with a comdat section. */ 1003 const char *name; 1004 1005 /* The local symbol table index of the symbol associated with a 1006 comdat section. This is only meaningful to the object file format 1007 specific code; it is not an index into the list returned by 1008 bfd_canonicalize_symtab. */ 1009 long symbol; 1010 }; 1011 1012 extern struct coff_comdat_info * bfd_coff_get_comdat_section 1013 (bfd *, struct bfd_section *); 1014