1 /* Main header file for the bfd library -- portable access to object files. 2 3 Copyright (C) 1990-2016 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 #define bfd_get_section_limit_octets(bfd, sec) \ 296 ((bfd)->direction != write_direction && (sec)->rawsize != 0 \ 297 ? (sec)->rawsize : (sec)->size) 298 299 /* Find the address one past the end of SEC. */ 300 #define bfd_get_section_limit(bfd, sec) \ 301 (bfd_get_section_limit_octets(bfd, sec) / bfd_octets_per_byte (bfd)) 302 303 /* Return TRUE if input section SEC has been discarded. */ 304 #define discarded_section(sec) \ 305 (!bfd_is_abs_section (sec) \ 306 && bfd_is_abs_section ((sec)->output_section) \ 307 && (sec)->sec_info_type != SEC_INFO_TYPE_MERGE \ 308 && (sec)->sec_info_type != SEC_INFO_TYPE_JUST_SYMS) 309 310 typedef enum bfd_print_symbol 311 { 312 bfd_print_symbol_name, 313 bfd_print_symbol_more, 314 bfd_print_symbol_all 315 } bfd_print_symbol_type; 316 317 /* Information about a symbol that nm needs. */ 318 319 typedef struct _symbol_info 320 { 321 symvalue value; 322 char type; 323 const char *name; /* Symbol name. */ 324 unsigned char stab_type; /* Stab type. */ 325 char stab_other; /* Stab other. */ 326 short stab_desc; /* Stab desc. */ 327 const char *stab_name; /* String for stab type. */ 328 } symbol_info; 329 330 /* Get the name of a stabs type code. */ 331 332 extern const char *bfd_get_stab_name (int); 333 334 /* Hash table routines. There is no way to free up a hash table. */ 335 336 /* An element in the hash table. Most uses will actually use a larger 337 structure, and an instance of this will be the first field. */ 338 339 struct bfd_hash_entry 340 { 341 /* Next entry for this hash code. */ 342 struct bfd_hash_entry *next; 343 /* String being hashed. */ 344 const char *string; 345 /* Hash code. This is the full hash code, not the index into the 346 table. */ 347 unsigned long hash; 348 }; 349 350 /* A hash table. */ 351 352 struct bfd_hash_table 353 { 354 /* The hash array. */ 355 struct bfd_hash_entry **table; 356 /* A function used to create new elements in the hash table. The 357 first entry is itself a pointer to an element. When this 358 function is first invoked, this pointer will be NULL. However, 359 having the pointer permits a hierarchy of method functions to be 360 built each of which calls the function in the superclass. Thus 361 each function should be written to allocate a new block of memory 362 only if the argument is NULL. */ 363 struct bfd_hash_entry *(*newfunc) 364 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 365 /* An objalloc for this hash table. This is a struct objalloc *, 366 but we use void * to avoid requiring the inclusion of objalloc.h. */ 367 void *memory; 368 /* The number of slots in the hash table. */ 369 unsigned int size; 370 /* The number of entries in the hash table. */ 371 unsigned int count; 372 /* The size of elements. */ 373 unsigned int entsize; 374 /* If non-zero, don't grow the hash table. */ 375 unsigned int frozen:1; 376 }; 377 378 /* Initialize a hash table. */ 379 extern bfd_boolean bfd_hash_table_init 380 (struct bfd_hash_table *, 381 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 382 struct bfd_hash_table *, 383 const char *), 384 unsigned int); 385 386 /* Initialize a hash table specifying a size. */ 387 extern bfd_boolean bfd_hash_table_init_n 388 (struct bfd_hash_table *, 389 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 390 struct bfd_hash_table *, 391 const char *), 392 unsigned int, unsigned int); 393 394 /* Free up a hash table. */ 395 extern void bfd_hash_table_free 396 (struct bfd_hash_table *); 397 398 /* Look up a string in a hash table. If CREATE is TRUE, a new entry 399 will be created for this string if one does not already exist. The 400 COPY argument must be TRUE if this routine should copy the string 401 into newly allocated memory when adding an entry. */ 402 extern struct bfd_hash_entry *bfd_hash_lookup 403 (struct bfd_hash_table *, const char *, bfd_boolean create, 404 bfd_boolean copy); 405 406 /* Insert an entry in a hash table. */ 407 extern struct bfd_hash_entry *bfd_hash_insert 408 (struct bfd_hash_table *, const char *, unsigned long); 409 410 /* Rename an entry in a hash table. */ 411 extern void bfd_hash_rename 412 (struct bfd_hash_table *, const char *, struct bfd_hash_entry *); 413 414 /* Replace an entry in a hash table. */ 415 extern void bfd_hash_replace 416 (struct bfd_hash_table *, struct bfd_hash_entry *old, 417 struct bfd_hash_entry *nw); 418 419 /* Base method for creating a hash table entry. */ 420 extern struct bfd_hash_entry *bfd_hash_newfunc 421 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 422 423 /* Grab some space for a hash table entry. */ 424 extern void *bfd_hash_allocate 425 (struct bfd_hash_table *, unsigned int); 426 427 /* Traverse a hash table in a random order, calling a function on each 428 element. If the function returns FALSE, the traversal stops. The 429 INFO argument is passed to the function. */ 430 extern void bfd_hash_traverse 431 (struct bfd_hash_table *, 432 bfd_boolean (*) (struct bfd_hash_entry *, void *), 433 void *info); 434 435 /* Allows the default size of a hash table to be configured. New hash 436 tables allocated using bfd_hash_table_init will be created with 437 this size. */ 438 extern unsigned long bfd_hash_set_default_size (unsigned long); 439 440 /* Types of compressed DWARF debug sections. We currently support 441 zlib. */ 442 enum compressed_debug_section_type 443 { 444 COMPRESS_DEBUG_NONE = 0, 445 COMPRESS_DEBUG = 1 << 0, 446 COMPRESS_DEBUG_GNU_ZLIB = COMPRESS_DEBUG | 1 << 1, 447 COMPRESS_DEBUG_GABI_ZLIB = COMPRESS_DEBUG | 1 << 2 448 }; 449 450 /* This structure is used to keep track of stabs in sections 451 information while linking. */ 452 453 struct stab_info 454 { 455 /* A hash table used to hold stabs strings. */ 456 struct bfd_strtab_hash *strings; 457 /* The header file hash table. */ 458 struct bfd_hash_table includes; 459 /* The first .stabstr section. */ 460 struct bfd_section *stabstr; 461 }; 462 463 #define COFF_SWAP_TABLE (void *) &bfd_coff_std_swap_table 464 465 /* User program access to BFD facilities. */ 466 467 /* Direct I/O routines, for programs which know more about the object 468 file than BFD does. Use higher level routines if possible. */ 469 470 extern bfd_size_type bfd_bread (void *, bfd_size_type, bfd *); 471 extern bfd_size_type bfd_bwrite (const void *, bfd_size_type, bfd *); 472 extern int bfd_seek (bfd *, file_ptr, int); 473 extern file_ptr bfd_tell (bfd *); 474 extern int bfd_flush (bfd *); 475 extern int bfd_stat (bfd *, struct stat *); 476 477 /* Deprecated old routines. */ 478 #if __GNUC__ 479 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD) \ 480 (warn_deprecated ("bfd_read", __FILE__, __LINE__, __FUNCTION__), \ 481 bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 482 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD) \ 483 (warn_deprecated ("bfd_write", __FILE__, __LINE__, __FUNCTION__), \ 484 bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 485 #else 486 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD) \ 487 (warn_deprecated ("bfd_read", (const char *) 0, 0, (const char *) 0), \ 488 bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 489 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD) \ 490 (warn_deprecated ("bfd_write", (const char *) 0, 0, (const char *) 0),\ 491 bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 492 #endif 493 extern void warn_deprecated (const char *, const char *, int, const char *); 494 495 /* Cast from const char * to char * so that caller can assign to 496 a char * without a warning. */ 497 #define bfd_get_filename(abfd) ((char *) (abfd)->filename) 498 #define bfd_get_cacheable(abfd) ((abfd)->cacheable) 499 #define bfd_get_format(abfd) ((abfd)->format) 500 #define bfd_get_target(abfd) ((abfd)->xvec->name) 501 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour) 502 #define bfd_family_coff(abfd) \ 503 (bfd_get_flavour (abfd) == bfd_target_coff_flavour || \ 504 bfd_get_flavour (abfd) == bfd_target_xcoff_flavour) 505 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG) 506 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE) 507 #define bfd_header_big_endian(abfd) \ 508 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG) 509 #define bfd_header_little_endian(abfd) \ 510 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE) 511 #define bfd_get_file_flags(abfd) ((abfd)->flags) 512 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags) 513 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags) 514 #define bfd_has_map(abfd) ((abfd)->has_armap) 515 #define bfd_is_thin_archive(abfd) ((abfd)->is_thin_archive) 516 517 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types) 518 #define bfd_usrdata(abfd) ((abfd)->usrdata) 519 520 #define bfd_get_start_address(abfd) ((abfd)->start_address) 521 #define bfd_get_symcount(abfd) ((abfd)->symcount) 522 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols) 523 #define bfd_count_sections(abfd) ((abfd)->section_count) 524 525 #define bfd_get_dynamic_symcount(abfd) ((abfd)->dynsymcount) 526 527 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char) 528 529 extern bfd_boolean bfd_cache_close 530 (bfd *abfd); 531 /* NB: This declaration should match the autogenerated one in libbfd.h. */ 532 533 extern bfd_boolean bfd_cache_close_all (void); 534 535 extern bfd_boolean bfd_record_phdr 536 (bfd *, unsigned long, bfd_boolean, flagword, bfd_boolean, bfd_vma, 537 bfd_boolean, bfd_boolean, unsigned int, struct bfd_section **); 538 539 /* Byte swapping routines. */ 540 541 bfd_uint64_t bfd_getb64 (const void *); 542 bfd_uint64_t bfd_getl64 (const void *); 543 bfd_int64_t bfd_getb_signed_64 (const void *); 544 bfd_int64_t bfd_getl_signed_64 (const void *); 545 bfd_vma bfd_getb32 (const void *); 546 bfd_vma bfd_getl32 (const void *); 547 bfd_signed_vma bfd_getb_signed_32 (const void *); 548 bfd_signed_vma bfd_getl_signed_32 (const void *); 549 bfd_vma bfd_getb16 (const void *); 550 bfd_vma bfd_getl16 (const void *); 551 bfd_signed_vma bfd_getb_signed_16 (const void *); 552 bfd_signed_vma bfd_getl_signed_16 (const void *); 553 void bfd_putb64 (bfd_uint64_t, void *); 554 void bfd_putl64 (bfd_uint64_t, void *); 555 void bfd_putb32 (bfd_vma, void *); 556 void bfd_putl32 (bfd_vma, void *); 557 void bfd_putb16 (bfd_vma, void *); 558 void bfd_putl16 (bfd_vma, void *); 559 560 /* Byte swapping routines which take size and endiannes as arguments. */ 561 562 bfd_uint64_t bfd_get_bits (const void *, int, bfd_boolean); 563 void bfd_put_bits (bfd_uint64_t, void *, int, bfd_boolean); 564 565 #if defined(__STDC__) || defined(ALMOST_STDC) 566 struct ecoff_debug_info; 567 struct ecoff_debug_swap; 568 struct ecoff_extr; 569 struct bfd_symbol; 570 struct bfd_link_info; 571 struct bfd_link_hash_entry; 572 struct bfd_section_already_linked; 573 struct bfd_elf_version_tree; 574 #endif 575 576 extern bfd_boolean bfd_section_already_linked_table_init (void); 577 extern void bfd_section_already_linked_table_free (void); 578 extern bfd_boolean _bfd_handle_already_linked 579 (struct bfd_section *, struct bfd_section_already_linked *, 580 struct bfd_link_info *); 581 582 /* Externally visible ECOFF routines. */ 583 584 extern bfd_vma bfd_ecoff_get_gp_value 585 (bfd * abfd); 586 extern bfd_boolean bfd_ecoff_set_gp_value 587 (bfd *abfd, bfd_vma gp_value); 588 extern bfd_boolean bfd_ecoff_set_regmasks 589 (bfd *abfd, unsigned long gprmask, unsigned long fprmask, 590 unsigned long *cprmask); 591 extern void *bfd_ecoff_debug_init 592 (bfd *output_bfd, struct ecoff_debug_info *output_debug, 593 const struct ecoff_debug_swap *output_swap, struct bfd_link_info *); 594 extern void bfd_ecoff_debug_free 595 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 596 const struct ecoff_debug_swap *output_swap, struct bfd_link_info *); 597 extern bfd_boolean bfd_ecoff_debug_accumulate 598 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 599 const struct ecoff_debug_swap *output_swap, bfd *input_bfd, 600 struct ecoff_debug_info *input_debug, 601 const struct ecoff_debug_swap *input_swap, struct bfd_link_info *); 602 extern bfd_boolean bfd_ecoff_debug_accumulate_other 603 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 604 const struct ecoff_debug_swap *output_swap, bfd *input_bfd, 605 struct bfd_link_info *); 606 extern bfd_boolean bfd_ecoff_debug_externals 607 (bfd *abfd, struct ecoff_debug_info *debug, 608 const struct ecoff_debug_swap *swap, bfd_boolean relocatable, 609 bfd_boolean (*get_extr) (struct bfd_symbol *, struct ecoff_extr *), 610 void (*set_index) (struct bfd_symbol *, bfd_size_type)); 611 extern bfd_boolean bfd_ecoff_debug_one_external 612 (bfd *abfd, struct ecoff_debug_info *debug, 613 const struct ecoff_debug_swap *swap, const char *name, 614 struct ecoff_extr *esym); 615 extern bfd_size_type bfd_ecoff_debug_size 616 (bfd *abfd, struct ecoff_debug_info *debug, 617 const struct ecoff_debug_swap *swap); 618 extern bfd_boolean bfd_ecoff_write_debug 619 (bfd *abfd, struct ecoff_debug_info *debug, 620 const struct ecoff_debug_swap *swap, file_ptr where); 621 extern bfd_boolean bfd_ecoff_write_accumulated_debug 622 (void *handle, bfd *abfd, struct ecoff_debug_info *debug, 623 const struct ecoff_debug_swap *swap, 624 struct bfd_link_info *info, file_ptr where); 625 626 /* Externally visible ELF routines. */ 627 628 struct bfd_link_needed_list 629 { 630 struct bfd_link_needed_list *next; 631 bfd *by; 632 const char *name; 633 }; 634 635 enum dynamic_lib_link_class { 636 DYN_NORMAL = 0, 637 DYN_AS_NEEDED = 1, 638 DYN_DT_NEEDED = 2, 639 DYN_NO_ADD_NEEDED = 4, 640 DYN_NO_NEEDED = 8 641 }; 642 643 enum notice_asneeded_action { 644 notice_as_needed, 645 notice_not_needed, 646 notice_needed 647 }; 648 649 extern bfd_boolean bfd_elf_record_link_assignment 650 (bfd *, struct bfd_link_info *, const char *, bfd_boolean, 651 bfd_boolean); 652 extern struct bfd_link_needed_list *bfd_elf_get_needed_list 653 (bfd *, struct bfd_link_info *); 654 extern bfd_boolean bfd_elf_get_bfd_needed_list 655 (bfd *, struct bfd_link_needed_list **); 656 extern bfd_boolean bfd_elf_stack_segment_size (bfd *, struct bfd_link_info *, 657 const char *, bfd_vma); 658 extern bfd_boolean bfd_elf_size_dynamic_sections 659 (bfd *, const char *, const char *, const char *, const char *, const char *, 660 const char * const *, struct bfd_link_info *, struct bfd_section **); 661 extern bfd_boolean bfd_elf_size_dynsym_hash_dynstr 662 (bfd *, struct bfd_link_info *); 663 extern void bfd_elf_set_dt_needed_name 664 (bfd *, const char *); 665 extern const char *bfd_elf_get_dt_soname 666 (bfd *); 667 extern void bfd_elf_set_dyn_lib_class 668 (bfd *, enum dynamic_lib_link_class); 669 extern int bfd_elf_get_dyn_lib_class 670 (bfd *); 671 extern struct bfd_link_needed_list *bfd_elf_get_runpath_list 672 (bfd *, struct bfd_link_info *); 673 extern int bfd_elf_discard_info 674 (bfd *, struct bfd_link_info *); 675 extern unsigned int _bfd_elf_default_action_discarded 676 (struct bfd_section *); 677 678 /* Return an upper bound on the number of bytes required to store a 679 copy of ABFD's program header table entries. Return -1 if an error 680 occurs; bfd_get_error will return an appropriate code. */ 681 extern long bfd_get_elf_phdr_upper_bound 682 (bfd *abfd); 683 684 /* Copy ABFD's program header table entries to *PHDRS. The entries 685 will be stored as an array of Elf_Internal_Phdr structures, as 686 defined in include/elf/internal.h. To find out how large the 687 buffer needs to be, call bfd_get_elf_phdr_upper_bound. 688 689 Return the number of program header table entries read, or -1 if an 690 error occurs; bfd_get_error will return an appropriate code. */ 691 extern int bfd_get_elf_phdrs 692 (bfd *abfd, void *phdrs); 693 694 /* Create a new BFD as if by bfd_openr. Rather than opening a file, 695 reconstruct an ELF file by reading the segments out of remote 696 memory based on the ELF file header at EHDR_VMA and the ELF program 697 headers it points to. If non-zero, SIZE is the known extent of the 698 object. If not null, *LOADBASEP is filled in with the difference 699 between the VMAs from which the segments were read, and the VMAs 700 the file headers (and hence BFD's idea of each section's VMA) put 701 them at. 702 703 The function TARGET_READ_MEMORY is called to copy LEN bytes from 704 the remote memory at target address VMA into the local buffer at 705 MYADDR; it should return zero on success or an `errno' code on 706 failure. TEMPL must be a BFD for a target with the word size and 707 byte order found in the remote memory. */ 708 extern bfd *bfd_elf_bfd_from_remote_memory 709 (bfd *templ, bfd_vma ehdr_vma, bfd_size_type size, bfd_vma *loadbasep, 710 int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr, 711 bfd_size_type len)); 712 713 extern struct bfd_section *_bfd_elf_tls_setup 714 (bfd *, struct bfd_link_info *); 715 716 extern struct bfd_section * 717 _bfd_nearby_section (bfd *, struct bfd_section *, bfd_vma); 718 719 extern void _bfd_fix_excluded_sec_syms 720 (bfd *, struct bfd_link_info *); 721 722 extern unsigned bfd_m68k_mach_to_features (int); 723 724 extern int bfd_m68k_features_to_mach (unsigned); 725 726 extern bfd_boolean bfd_m68k_elf32_create_embedded_relocs 727 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 728 char **); 729 730 extern void bfd_elf_m68k_set_target_options (struct bfd_link_info *, int); 731 732 extern bfd_boolean bfd_bfin_elf32_create_embedded_relocs 733 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 734 char **); 735 736 extern bfd_boolean bfd_cr16_elf32_create_embedded_relocs 737 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 738 char **); 739 740 /* SunOS shared library support routines for the linker. */ 741 742 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list 743 (bfd *, struct bfd_link_info *); 744 extern bfd_boolean bfd_sunos_record_link_assignment 745 (bfd *, struct bfd_link_info *, const char *); 746 extern bfd_boolean bfd_sunos_size_dynamic_sections 747 (bfd *, struct bfd_link_info *, struct bfd_section **, 748 struct bfd_section **, struct bfd_section **); 749 750 /* Linux shared library support routines for the linker. */ 751 752 extern bfd_boolean bfd_i386linux_size_dynamic_sections 753 (bfd *, struct bfd_link_info *); 754 extern bfd_boolean bfd_m68klinux_size_dynamic_sections 755 (bfd *, struct bfd_link_info *); 756 extern bfd_boolean bfd_sparclinux_size_dynamic_sections 757 (bfd *, struct bfd_link_info *); 758 759 /* mmap hacks */ 760 761 struct _bfd_window_internal; 762 typedef struct _bfd_window_internal bfd_window_internal; 763 764 typedef struct _bfd_window 765 { 766 /* What the user asked for. */ 767 void *data; 768 bfd_size_type size; 769 /* The actual window used by BFD. Small user-requested read-only 770 regions sharing a page may share a single window into the object 771 file. Read-write versions shouldn't until I've fixed things to 772 keep track of which portions have been claimed by the 773 application; don't want to give the same region back when the 774 application wants two writable copies! */ 775 struct _bfd_window_internal *i; 776 } 777 bfd_window; 778 779 extern void bfd_init_window 780 (bfd_window *); 781 extern void bfd_free_window 782 (bfd_window *); 783 extern bfd_boolean bfd_get_file_window 784 (bfd *, file_ptr, bfd_size_type, bfd_window *, bfd_boolean); 785 786 /* XCOFF support routines for the linker. */ 787 788 extern bfd_boolean bfd_xcoff_split_import_path 789 (bfd *, const char *, const char **, const char **); 790 extern bfd_boolean bfd_xcoff_set_archive_import_path 791 (struct bfd_link_info *, bfd *, const char *); 792 extern bfd_boolean bfd_xcoff_link_record_set 793 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_size_type); 794 extern bfd_boolean bfd_xcoff_import_symbol 795 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_vma, 796 const char *, const char *, const char *, unsigned int); 797 extern bfd_boolean bfd_xcoff_export_symbol 798 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *); 799 extern bfd_boolean bfd_xcoff_link_count_reloc 800 (bfd *, struct bfd_link_info *, const char *); 801 extern bfd_boolean bfd_xcoff_record_link_assignment 802 (bfd *, struct bfd_link_info *, const char *); 803 extern bfd_boolean bfd_xcoff_size_dynamic_sections 804 (bfd *, struct bfd_link_info *, const char *, const char *, 805 unsigned long, unsigned long, unsigned long, bfd_boolean, 806 int, bfd_boolean, unsigned int, struct bfd_section **, bfd_boolean); 807 extern bfd_boolean bfd_xcoff_link_generate_rtinit 808 (bfd *, const char *, const char *, bfd_boolean); 809 810 /* XCOFF support routines for ar. */ 811 extern bfd_boolean bfd_xcoff_ar_archive_set_magic 812 (bfd *, char *); 813 814 /* Externally visible COFF routines. */ 815 816 #if defined(__STDC__) || defined(ALMOST_STDC) 817 struct internal_syment; 818 union internal_auxent; 819 #endif 820 821 extern bfd_boolean bfd_coff_set_symbol_class 822 (bfd *, struct bfd_symbol *, unsigned int); 823 824 extern bfd_boolean bfd_m68k_coff_create_embedded_relocs 825 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, char **); 826 827 /* ARM VFP11 erratum workaround support. */ 828 typedef enum 829 { 830 BFD_ARM_VFP11_FIX_DEFAULT, 831 BFD_ARM_VFP11_FIX_NONE, 832 BFD_ARM_VFP11_FIX_SCALAR, 833 BFD_ARM_VFP11_FIX_VECTOR 834 } bfd_arm_vfp11_fix; 835 836 extern void bfd_elf32_arm_init_maps 837 (bfd *); 838 839 extern void bfd_elf32_arm_set_vfp11_fix 840 (bfd *, struct bfd_link_info *); 841 842 extern void bfd_elf32_arm_set_cortex_a8_fix 843 (bfd *, struct bfd_link_info *); 844 845 extern bfd_boolean bfd_elf32_arm_vfp11_erratum_scan 846 (bfd *, struct bfd_link_info *); 847 848 extern void bfd_elf32_arm_vfp11_fix_veneer_locations 849 (bfd *, struct bfd_link_info *); 850 851 /* ARM STM STM32L4XX erratum workaround support. */ 852 typedef enum 853 { 854 BFD_ARM_STM32L4XX_FIX_NONE, 855 BFD_ARM_STM32L4XX_FIX_DEFAULT, 856 BFD_ARM_STM32L4XX_FIX_ALL 857 } bfd_arm_stm32l4xx_fix; 858 859 extern void bfd_elf32_arm_set_stm32l4xx_fix 860 (bfd *, struct bfd_link_info *); 861 862 extern bfd_boolean bfd_elf32_arm_stm32l4xx_erratum_scan 863 (bfd *, struct bfd_link_info *); 864 865 extern void bfd_elf32_arm_stm32l4xx_fix_veneer_locations 866 (bfd *, struct bfd_link_info *); 867 868 /* ARM Interworking support. Called from linker. */ 869 extern bfd_boolean bfd_arm_allocate_interworking_sections 870 (struct bfd_link_info *); 871 872 extern bfd_boolean bfd_arm_process_before_allocation 873 (bfd *, struct bfd_link_info *, int); 874 875 extern bfd_boolean bfd_arm_get_bfd_for_interworking 876 (bfd *, struct bfd_link_info *); 877 878 /* PE ARM Interworking support. Called from linker. */ 879 extern bfd_boolean bfd_arm_pe_allocate_interworking_sections 880 (struct bfd_link_info *); 881 882 extern bfd_boolean bfd_arm_pe_process_before_allocation 883 (bfd *, struct bfd_link_info *, int); 884 885 extern bfd_boolean bfd_arm_pe_get_bfd_for_interworking 886 (bfd *, struct bfd_link_info *); 887 888 /* ELF ARM Interworking support. Called from linker. */ 889 extern bfd_boolean bfd_elf32_arm_allocate_interworking_sections 890 (struct bfd_link_info *); 891 892 extern bfd_boolean bfd_elf32_arm_process_before_allocation 893 (bfd *, struct bfd_link_info *); 894 895 void bfd_elf32_arm_set_target_relocs 896 (bfd *, struct bfd_link_info *, int, char *, int, int, bfd_arm_vfp11_fix, 897 bfd_arm_stm32l4xx_fix, int, int, int, int, int); 898 899 extern bfd_boolean bfd_elf32_arm_get_bfd_for_interworking 900 (bfd *, struct bfd_link_info *); 901 902 extern bfd_boolean bfd_elf32_arm_add_glue_sections_to_bfd 903 (bfd *, struct bfd_link_info *); 904 905 extern void bfd_elf32_arm_keep_private_stub_output_sections 906 (struct bfd_link_info *); 907 908 /* ELF ARM mapping symbol support. */ 909 #define BFD_ARM_SPECIAL_SYM_TYPE_MAP (1 << 0) 910 #define BFD_ARM_SPECIAL_SYM_TYPE_TAG (1 << 1) 911 #define BFD_ARM_SPECIAL_SYM_TYPE_OTHER (1 << 2) 912 #define BFD_ARM_SPECIAL_SYM_TYPE_ANY (~0) 913 914 extern bfd_boolean bfd_is_arm_special_symbol_name 915 (const char *, int); 916 917 extern void bfd_elf32_arm_set_byteswap_code 918 (struct bfd_link_info *, int); 919 920 extern void bfd_elf32_arm_use_long_plt (void); 921 922 /* ARM Note section processing. */ 923 extern bfd_boolean bfd_arm_merge_machines 924 (bfd *, bfd *); 925 926 extern bfd_boolean bfd_arm_update_notes 927 (bfd *, const char *); 928 929 extern unsigned int bfd_arm_get_mach_from_notes 930 (bfd *, const char *); 931 932 /* ARM stub generation support. Called from the linker. */ 933 extern int elf32_arm_setup_section_lists 934 (bfd *, struct bfd_link_info *); 935 extern void elf32_arm_next_input_section 936 (struct bfd_link_info *, struct bfd_section *); 937 extern bfd_boolean elf32_arm_size_stubs 938 (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, 939 struct bfd_section * (*) (const char *, struct bfd_section *, 940 struct bfd_section *, unsigned int), 941 void (*) (void)); 942 extern bfd_boolean elf32_arm_build_stubs 943 (struct bfd_link_info *); 944 945 /* ARM unwind section editing support. */ 946 extern bfd_boolean elf32_arm_fix_exidx_coverage 947 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean); 948 949 /* C6x unwind section editing support. */ 950 extern bfd_boolean elf32_tic6x_fix_exidx_coverage 951 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean); 952 953 extern void bfd_elf64_aarch64_init_maps 954 (bfd *); 955 956 extern void bfd_elf32_aarch64_init_maps 957 (bfd *); 958 959 extern void bfd_elf64_aarch64_set_options 960 (bfd *, struct bfd_link_info *, int, int, int, int, int, int); 961 962 extern void bfd_elf32_aarch64_set_options 963 (bfd *, struct bfd_link_info *, int, int, int, int, int, int); 964 965 /* ELF AArch64 mapping symbol support. */ 966 #define BFD_AARCH64_SPECIAL_SYM_TYPE_MAP (1 << 0) 967 #define BFD_AARCH64_SPECIAL_SYM_TYPE_TAG (1 << 1) 968 #define BFD_AARCH64_SPECIAL_SYM_TYPE_OTHER (1 << 2) 969 #define BFD_AARCH64_SPECIAL_SYM_TYPE_ANY (~0) 970 extern bfd_boolean bfd_is_aarch64_special_symbol_name 971 (const char * name, int type); 972 973 /* AArch64 stub generation support for ELF64. Called from the linker. */ 974 extern int elf64_aarch64_setup_section_lists 975 (bfd *, struct bfd_link_info *); 976 extern void elf64_aarch64_next_input_section 977 (struct bfd_link_info *, struct bfd_section *); 978 extern bfd_boolean elf64_aarch64_size_stubs 979 (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, 980 struct bfd_section * (*) (const char *, struct bfd_section *), 981 void (*) (void)); 982 extern bfd_boolean elf64_aarch64_build_stubs 983 (struct bfd_link_info *); 984 /* AArch64 stub generation support for ELF32. Called from the linker. */ 985 extern int elf32_aarch64_setup_section_lists 986 (bfd *, struct bfd_link_info *); 987 extern void elf32_aarch64_next_input_section 988 (struct bfd_link_info *, struct bfd_section *); 989 extern bfd_boolean elf32_aarch64_size_stubs 990 (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, 991 struct bfd_section * (*) (const char *, struct bfd_section *), 992 void (*) (void)); 993 extern bfd_boolean elf32_aarch64_build_stubs 994 (struct bfd_link_info *); 995 996 997 /* TI COFF load page support. */ 998 extern void bfd_ticoff_set_section_load_page 999 (struct bfd_section *, int); 1000 1001 extern int bfd_ticoff_get_section_load_page 1002 (struct bfd_section *); 1003 1004 /* H8/300 functions. */ 1005 extern bfd_vma bfd_h8300_pad_address 1006 (bfd *, bfd_vma); 1007 1008 /* IA64 Itanium code generation. Called from linker. */ 1009 extern void bfd_elf32_ia64_after_parse 1010 (int); 1011 1012 extern void bfd_elf64_ia64_after_parse 1013 (int); 1014 1015 /* V850 Note manipulation routines. */ 1016 extern bfd_boolean v850_elf_create_sections 1017 (struct bfd_link_info *); 1018 1019 extern bfd_boolean v850_elf_set_note 1020 (bfd *, unsigned int, unsigned int); 1021