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. */ 202 203 typedef enum bfd_format 204 { 205 bfd_unknown = 0, /* File format is unknown. */ 206 bfd_object, /* Linker/assembler/compiler output. */ 207 bfd_archive, /* Object archive file. */ 208 bfd_core, /* Core dump. */ 209 bfd_type_end /* Marks the end; don't use it! */ 210 } 211 bfd_format; 212 213 /* Symbols and relocation. */ 215 216 /* A count of carsyms (canonical archive symbols). */ 217 typedef unsigned long symindex; 218 219 /* How to perform a relocation. */ 220 typedef const struct reloc_howto_struct reloc_howto_type; 221 222 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0) 223 224 /* General purpose part of a symbol X; 225 target specific parts are in libcoff.h, libaout.h, etc. */ 226 227 #define bfd_get_section(x) ((x)->section) 228 #define bfd_get_output_section(x) ((x)->section->output_section) 229 #define bfd_set_section(x,y) ((x)->section) = (y) 230 #define bfd_asymbol_base(x) ((x)->section->vma) 231 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value) 232 #define bfd_asymbol_name(x) ((x)->name) 233 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/ 234 #define bfd_asymbol_bfd(x) ((x)->the_bfd) 235 #define bfd_asymbol_flavour(x) \ 236 (((x)->flags & BSF_SYNTHETIC) != 0 \ 237 ? bfd_target_unknown_flavour \ 238 : bfd_asymbol_bfd (x)->xvec->flavour) 239 240 /* A canonical archive symbol. */ 241 /* This is a type pun with struct ranlib on purpose! */ 242 typedef struct carsym 243 { 244 char *name; 245 file_ptr file_offset; /* Look here to find the file. */ 246 } 247 carsym; /* To make these you call a carsymogen. */ 248 249 /* Used in generating armaps (archive tables of contents). 250 Perhaps just a forward definition would do? */ 251 struct orl /* Output ranlib. */ 252 { 253 char **name; /* Symbol name. */ 254 union 255 { 256 file_ptr pos; 257 bfd *abfd; 258 } u; /* bfd* or file position. */ 259 int namidx; /* Index into string table. */ 260 }; 261 262 /* Linenumber stuff. */ 264 typedef struct lineno_cache_entry 265 { 266 unsigned int line_number; /* Linenumber from start of function. */ 267 union 268 { 269 struct bfd_symbol *sym; /* Function name. */ 270 bfd_vma offset; /* Offset into section. */ 271 } u; 272 } 273 alent; 274 275 /* Object and core file sections. */ 277 278 #define align_power(addr, align) \ 279 (((addr) + ((bfd_vma) 1 << (align)) - 1) & (-((bfd_vma) 1 << (align)))) 280 281 typedef struct bfd_section *sec_ptr; 282 283 #define bfd_get_section_name(bfd, ptr) ((void) bfd, (ptr)->name) 284 #define bfd_get_section_vma(bfd, ptr) ((void) bfd, (ptr)->vma) 285 #define bfd_get_section_lma(bfd, ptr) ((void) bfd, (ptr)->lma) 286 #define bfd_get_section_alignment(bfd, ptr) ((void) bfd, \ 287 (ptr)->alignment_power) 288 #define bfd_section_name(bfd, ptr) ((ptr)->name) 289 #define bfd_section_size(bfd, ptr) ((ptr)->size) 290 #define bfd_get_section_size(ptr) ((ptr)->size) 291 #define bfd_section_vma(bfd, ptr) ((ptr)->vma) 292 #define bfd_section_lma(bfd, ptr) ((ptr)->lma) 293 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power) 294 #define bfd_get_section_flags(bfd, ptr) ((void) bfd, (ptr)->flags) 295 #define bfd_get_section_userdata(bfd, ptr) ((void) bfd, (ptr)->userdata) 296 297 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0) 298 299 #define bfd_get_section_limit_octets(bfd, sec) \ 300 ((bfd)->direction != write_direction && (sec)->rawsize != 0 \ 301 ? (sec)->rawsize : (sec)->size) 302 303 /* Find the address one past the end of SEC. */ 304 #define bfd_get_section_limit(bfd, sec) \ 305 (bfd_get_section_limit_octets(bfd, sec) / bfd_octets_per_byte (bfd)) 306 307 /* Return TRUE if input section SEC has been discarded. */ 308 #define discarded_section(sec) \ 309 (!bfd_is_abs_section (sec) \ 310 && bfd_is_abs_section ((sec)->output_section) \ 311 && (sec)->sec_info_type != SEC_INFO_TYPE_MERGE \ 312 && (sec)->sec_info_type != SEC_INFO_TYPE_JUST_SYMS) 313 314 typedef enum bfd_print_symbol 316 { 317 bfd_print_symbol_name, 318 bfd_print_symbol_more, 319 bfd_print_symbol_all 320 } bfd_print_symbol_type; 321 322 /* Information about a symbol that nm needs. */ 323 324 typedef struct _symbol_info 325 { 326 symvalue value; 327 char type; 328 const char *name; /* Symbol name. */ 329 unsigned char stab_type; /* Stab type. */ 330 char stab_other; /* Stab other. */ 331 short stab_desc; /* Stab desc. */ 332 const char *stab_name; /* String for stab type. */ 333 } symbol_info; 334 335 /* Get the name of a stabs type code. */ 336 337 extern const char *bfd_get_stab_name (int); 338 339 /* Hash table routines. There is no way to free up a hash table. */ 341 342 /* An element in the hash table. Most uses will actually use a larger 343 structure, and an instance of this will be the first field. */ 344 345 struct bfd_hash_entry 346 { 347 /* Next entry for this hash code. */ 348 struct bfd_hash_entry *next; 349 /* String being hashed. */ 350 const char *string; 351 /* Hash code. This is the full hash code, not the index into the 352 table. */ 353 unsigned long hash; 354 }; 355 356 /* A hash table. */ 357 358 struct bfd_hash_table 359 { 360 /* The hash array. */ 361 struct bfd_hash_entry **table; 362 /* A function used to create new elements in the hash table. The 363 first entry is itself a pointer to an element. When this 364 function is first invoked, this pointer will be NULL. However, 365 having the pointer permits a hierarchy of method functions to be 366 built each of which calls the function in the superclass. Thus 367 each function should be written to allocate a new block of memory 368 only if the argument is NULL. */ 369 struct bfd_hash_entry *(*newfunc) 370 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 371 /* An objalloc for this hash table. This is a struct objalloc *, 372 but we use void * to avoid requiring the inclusion of objalloc.h. */ 373 void *memory; 374 /* The number of slots in the hash table. */ 375 unsigned int size; 376 /* The number of entries in the hash table. */ 377 unsigned int count; 378 /* The size of elements. */ 379 unsigned int entsize; 380 /* If non-zero, don't grow the hash table. */ 381 unsigned int frozen:1; 382 }; 383 384 /* Initialize a hash table. */ 385 extern bfd_boolean bfd_hash_table_init 386 (struct bfd_hash_table *, 387 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 388 struct bfd_hash_table *, 389 const char *), 390 unsigned int); 391 392 /* Initialize a hash table specifying a size. */ 393 extern bfd_boolean bfd_hash_table_init_n 394 (struct bfd_hash_table *, 395 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 396 struct bfd_hash_table *, 397 const char *), 398 unsigned int, unsigned int); 399 400 /* Free up a hash table. */ 401 extern void bfd_hash_table_free 402 (struct bfd_hash_table *); 403 404 /* Look up a string in a hash table. If CREATE is TRUE, a new entry 405 will be created for this string if one does not already exist. The 406 COPY argument must be TRUE if this routine should copy the string 407 into newly allocated memory when adding an entry. */ 408 extern struct bfd_hash_entry *bfd_hash_lookup 409 (struct bfd_hash_table *, const char *, bfd_boolean create, 410 bfd_boolean copy); 411 412 /* Insert an entry in a hash table. */ 413 extern struct bfd_hash_entry *bfd_hash_insert 414 (struct bfd_hash_table *, const char *, unsigned long); 415 416 /* Rename an entry in a hash table. */ 417 extern void bfd_hash_rename 418 (struct bfd_hash_table *, const char *, struct bfd_hash_entry *); 419 420 /* Replace an entry in a hash table. */ 421 extern void bfd_hash_replace 422 (struct bfd_hash_table *, struct bfd_hash_entry *old, 423 struct bfd_hash_entry *nw); 424 425 /* Base method for creating a hash table entry. */ 426 extern struct bfd_hash_entry *bfd_hash_newfunc 427 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 428 429 /* Grab some space for a hash table entry. */ 430 extern void *bfd_hash_allocate 431 (struct bfd_hash_table *, unsigned int); 432 433 /* Traverse a hash table in a random order, calling a function on each 434 element. If the function returns FALSE, the traversal stops. The 435 INFO argument is passed to the function. */ 436 extern void bfd_hash_traverse 437 (struct bfd_hash_table *, 438 bfd_boolean (*) (struct bfd_hash_entry *, void *), 439 void *info); 440 441 /* Allows the default size of a hash table to be configured. New hash 442 tables allocated using bfd_hash_table_init will be created with 443 this size. */ 444 extern unsigned long bfd_hash_set_default_size (unsigned long); 445 446 /* Types of compressed DWARF debug sections. We currently support 447 zlib. */ 448 enum compressed_debug_section_type 449 { 450 COMPRESS_DEBUG_NONE = 0, 451 COMPRESS_DEBUG = 1 << 0, 452 COMPRESS_DEBUG_GNU_ZLIB = COMPRESS_DEBUG | 1 << 1, 453 COMPRESS_DEBUG_GABI_ZLIB = COMPRESS_DEBUG | 1 << 2 454 }; 455 456 /* This structure is used to keep track of stabs in sections 457 information while linking. */ 458 459 struct stab_info 460 { 461 /* A hash table used to hold stabs strings. */ 462 struct bfd_strtab_hash *strings; 463 /* The header file hash table. */ 464 struct bfd_hash_table includes; 465 /* The first .stabstr section. */ 466 struct bfd_section *stabstr; 467 }; 468 469 #define COFF_SWAP_TABLE (void *) &bfd_coff_std_swap_table 470 471 /* User program access to BFD facilities. */ 472 473 /* Direct I/O routines, for programs which know more about the object 474 file than BFD does. Use higher level routines if possible. */ 475 476 extern bfd_size_type bfd_bread (void *, bfd_size_type, bfd *); 477 extern bfd_size_type bfd_bwrite (const void *, bfd_size_type, bfd *); 478 extern int bfd_seek (bfd *, file_ptr, int); 479 extern file_ptr bfd_tell (bfd *); 480 extern int bfd_flush (bfd *); 481 extern int bfd_stat (bfd *, struct stat *); 482 483 /* Deprecated old routines. */ 484 #if __GNUC__ 485 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD) \ 486 (warn_deprecated ("bfd_read", __FILE__, __LINE__, __FUNCTION__), \ 487 bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 488 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD) \ 489 (warn_deprecated ("bfd_write", __FILE__, __LINE__, __FUNCTION__), \ 490 bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 491 #else 492 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD) \ 493 (warn_deprecated ("bfd_read", (const char *) 0, 0, (const char *) 0), \ 494 bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 495 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD) \ 496 (warn_deprecated ("bfd_write", (const char *) 0, 0, (const char *) 0),\ 497 bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 498 #endif 499 extern void warn_deprecated (const char *, const char *, int, const char *); 500 501 /* Cast from const char * to char * so that caller can assign to 502 a char * without a warning. */ 503 #define bfd_get_filename(abfd) ((char *) (abfd)->filename) 504 #define bfd_get_cacheable(abfd) ((abfd)->cacheable) 505 #define bfd_get_format(abfd) ((abfd)->format) 506 #define bfd_get_target(abfd) ((abfd)->xvec->name) 507 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour) 508 #define bfd_family_coff(abfd) \ 509 (bfd_get_flavour (abfd) == bfd_target_coff_flavour || \ 510 bfd_get_flavour (abfd) == bfd_target_xcoff_flavour) 511 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG) 512 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE) 513 #define bfd_header_big_endian(abfd) \ 514 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG) 515 #define bfd_header_little_endian(abfd) \ 516 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE) 517 #define bfd_get_file_flags(abfd) ((abfd)->flags) 518 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags) 519 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags) 520 #define bfd_has_map(abfd) ((abfd)->has_armap) 521 #define bfd_is_thin_archive(abfd) ((abfd)->is_thin_archive) 522 523 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types) 524 #define bfd_usrdata(abfd) ((abfd)->usrdata) 525 526 #define bfd_get_start_address(abfd) ((abfd)->start_address) 527 #define bfd_get_symcount(abfd) ((abfd)->symcount) 528 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols) 529 #define bfd_count_sections(abfd) ((abfd)->section_count) 530 531 #define bfd_get_dynamic_symcount(abfd) ((abfd)->dynsymcount) 532 533 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char) 534 535 extern bfd_boolean bfd_cache_close 536 (bfd *abfd); 537 /* NB: This declaration should match the autogenerated one in libbfd.h. */ 538 539 extern bfd_boolean bfd_cache_close_all (void); 540 541 extern bfd_boolean bfd_record_phdr 542 (bfd *, unsigned long, bfd_boolean, flagword, bfd_boolean, bfd_vma, 543 bfd_boolean, bfd_boolean, unsigned int, struct bfd_section **); 544 545 /* Byte swapping routines. */ 546 547 bfd_uint64_t bfd_getb64 (const void *); 548 bfd_uint64_t bfd_getl64 (const void *); 549 bfd_int64_t bfd_getb_signed_64 (const void *); 550 bfd_int64_t bfd_getl_signed_64 (const void *); 551 bfd_vma bfd_getb32 (const void *); 552 bfd_vma bfd_getl32 (const void *); 553 bfd_signed_vma bfd_getb_signed_32 (const void *); 554 bfd_signed_vma bfd_getl_signed_32 (const void *); 555 bfd_vma bfd_getb16 (const void *); 556 bfd_vma bfd_getl16 (const void *); 557 bfd_signed_vma bfd_getb_signed_16 (const void *); 558 bfd_signed_vma bfd_getl_signed_16 (const void *); 559 void bfd_putb64 (bfd_uint64_t, void *); 560 void bfd_putl64 (bfd_uint64_t, void *); 561 void bfd_putb32 (bfd_vma, void *); 562 void bfd_putl32 (bfd_vma, void *); 563 void bfd_putb16 (bfd_vma, void *); 564 void bfd_putl16 (bfd_vma, void *); 565 566 /* Byte swapping routines which take size and endiannes as arguments. */ 567 568 bfd_uint64_t bfd_get_bits (const void *, int, bfd_boolean); 569 void bfd_put_bits (bfd_uint64_t, void *, int, bfd_boolean); 570 571 #if defined(__STDC__) || defined(ALMOST_STDC) 572 struct ecoff_debug_info; 573 struct ecoff_debug_swap; 574 struct ecoff_extr; 575 struct bfd_symbol; 576 struct bfd_link_info; 577 struct bfd_link_hash_entry; 578 struct bfd_section_already_linked; 579 struct bfd_elf_version_tree; 580 #endif 581 582 extern bfd_boolean bfd_section_already_linked_table_init (void); 583 extern void bfd_section_already_linked_table_free (void); 584 extern bfd_boolean _bfd_handle_already_linked 585 (struct bfd_section *, struct bfd_section_already_linked *, 586 struct bfd_link_info *); 587 588 /* Externally visible ECOFF routines. */ 590 591 extern bfd_vma bfd_ecoff_get_gp_value 592 (bfd * abfd); 593 extern bfd_boolean bfd_ecoff_set_gp_value 594 (bfd *abfd, bfd_vma gp_value); 595 extern bfd_boolean bfd_ecoff_set_regmasks 596 (bfd *abfd, unsigned long gprmask, unsigned long fprmask, 597 unsigned long *cprmask); 598 extern void *bfd_ecoff_debug_init 599 (bfd *output_bfd, struct ecoff_debug_info *output_debug, 600 const struct ecoff_debug_swap *output_swap, struct bfd_link_info *); 601 extern void bfd_ecoff_debug_free 602 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 603 const struct ecoff_debug_swap *output_swap, struct bfd_link_info *); 604 extern bfd_boolean bfd_ecoff_debug_accumulate 605 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 606 const struct ecoff_debug_swap *output_swap, bfd *input_bfd, 607 struct ecoff_debug_info *input_debug, 608 const struct ecoff_debug_swap *input_swap, struct bfd_link_info *); 609 extern bfd_boolean bfd_ecoff_debug_accumulate_other 610 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 611 const struct ecoff_debug_swap *output_swap, bfd *input_bfd, 612 struct bfd_link_info *); 613 extern bfd_boolean bfd_ecoff_debug_externals 614 (bfd *abfd, struct ecoff_debug_info *debug, 615 const struct ecoff_debug_swap *swap, bfd_boolean relocatable, 616 bfd_boolean (*get_extr) (struct bfd_symbol *, struct ecoff_extr *), 617 void (*set_index) (struct bfd_symbol *, bfd_size_type)); 618 extern bfd_boolean bfd_ecoff_debug_one_external 619 (bfd *abfd, struct ecoff_debug_info *debug, 620 const struct ecoff_debug_swap *swap, const char *name, 621 struct ecoff_extr *esym); 622 extern bfd_size_type bfd_ecoff_debug_size 623 (bfd *abfd, struct ecoff_debug_info *debug, 624 const struct ecoff_debug_swap *swap); 625 extern bfd_boolean bfd_ecoff_write_debug 626 (bfd *abfd, struct ecoff_debug_info *debug, 627 const struct ecoff_debug_swap *swap, file_ptr where); 628 extern bfd_boolean bfd_ecoff_write_accumulated_debug 629 (void *handle, bfd *abfd, struct ecoff_debug_info *debug, 630 const struct ecoff_debug_swap *swap, 631 struct bfd_link_info *info, file_ptr where); 632 633 /* Externally visible ELF routines. */ 634 635 struct bfd_link_needed_list 636 { 637 struct bfd_link_needed_list *next; 638 bfd *by; 639 const char *name; 640 }; 641 642 enum dynamic_lib_link_class { 643 DYN_NORMAL = 0, 644 DYN_AS_NEEDED = 1, 645 DYN_DT_NEEDED = 2, 646 DYN_NO_ADD_NEEDED = 4, 647 DYN_NO_NEEDED = 8 648 }; 649 650 enum notice_asneeded_action { 651 notice_as_needed, 652 notice_not_needed, 653 notice_needed 654 }; 655 656 extern bfd_boolean bfd_elf_record_link_assignment 657 (bfd *, struct bfd_link_info *, const char *, bfd_boolean, 658 bfd_boolean); 659 extern struct bfd_link_needed_list *bfd_elf_get_needed_list 660 (bfd *, struct bfd_link_info *); 661 extern bfd_boolean bfd_elf_get_bfd_needed_list 662 (bfd *, struct bfd_link_needed_list **); 663 extern bfd_boolean bfd_elf_stack_segment_size (bfd *, struct bfd_link_info *, 664 const char *, bfd_vma); 665 extern bfd_boolean bfd_elf_size_dynamic_sections 666 (bfd *, const char *, const char *, const char *, const char *, const char *, 667 const char * const *, struct bfd_link_info *, struct bfd_section **); 668 extern bfd_boolean bfd_elf_size_dynsym_hash_dynstr 669 (bfd *, struct bfd_link_info *); 670 extern void bfd_elf_set_dt_needed_name 671 (bfd *, const char *); 672 extern const char *bfd_elf_get_dt_soname 673 (bfd *); 674 extern void bfd_elf_set_dyn_lib_class 675 (bfd *, enum dynamic_lib_link_class); 676 extern int bfd_elf_get_dyn_lib_class 677 (bfd *); 678 extern struct bfd_link_needed_list *bfd_elf_get_runpath_list 679 (bfd *, struct bfd_link_info *); 680 extern int bfd_elf_discard_info 681 (bfd *, struct bfd_link_info *); 682 extern unsigned int _bfd_elf_default_action_discarded 683 (struct bfd_section *); 684 685 /* Return an upper bound on the number of bytes required to store a 686 copy of ABFD's program header table entries. Return -1 if an error 687 occurs; bfd_get_error will return an appropriate code. */ 688 extern long bfd_get_elf_phdr_upper_bound 689 (bfd *abfd); 690 691 /* Copy ABFD's program header table entries to *PHDRS. The entries 692 will be stored as an array of Elf_Internal_Phdr structures, as 693 defined in include/elf/internal.h. To find out how large the 694 buffer needs to be, call bfd_get_elf_phdr_upper_bound. 695 696 Return the number of program header table entries read, or -1 if an 697 error occurs; bfd_get_error will return an appropriate code. */ 698 extern int bfd_get_elf_phdrs 699 (bfd *abfd, void *phdrs); 700 701 /* Create a new BFD as if by bfd_openr. Rather than opening a file, 702 reconstruct an ELF file by reading the segments out of remote 703 memory based on the ELF file header at EHDR_VMA and the ELF program 704 headers it points to. If non-zero, SIZE is the known extent of the 705 object. If not null, *LOADBASEP is filled in with the difference 706 between the VMAs from which the segments were read, and the VMAs 707 the file headers (and hence BFD's idea of each section's VMA) put 708 them at. 709 710 The function TARGET_READ_MEMORY is called to copy LEN bytes from 711 the remote memory at target address VMA into the local buffer at 712 MYADDR; it should return zero on success or an `errno' code on 713 failure. TEMPL must be a BFD for a target with the word size and 714 byte order found in the remote memory. */ 715 extern bfd *bfd_elf_bfd_from_remote_memory 716 (bfd *templ, bfd_vma ehdr_vma, bfd_size_type size, bfd_vma *loadbasep, 717 int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr, 718 bfd_size_type len)); 719 720 extern struct bfd_section *_bfd_elf_tls_setup 721 (bfd *, struct bfd_link_info *); 722 723 extern struct bfd_section * 724 _bfd_nearby_section (bfd *, struct bfd_section *, bfd_vma); 725 726 extern void _bfd_fix_excluded_sec_syms 727 (bfd *, struct bfd_link_info *); 728 729 extern unsigned bfd_m68k_mach_to_features (int); 730 731 extern int bfd_m68k_features_to_mach (unsigned); 732 733 extern bfd_boolean bfd_m68k_elf32_create_embedded_relocs 734 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 735 char **); 736 737 extern void bfd_elf_m68k_set_target_options (struct bfd_link_info *, int); 738 739 extern bfd_boolean bfd_bfin_elf32_create_embedded_relocs 740 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 741 char **); 742 743 extern bfd_boolean bfd_cr16_elf32_create_embedded_relocs 744 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 745 char **); 746 747 /* SunOS shared library support routines for the linker. */ 748 749 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list 750 (bfd *, struct bfd_link_info *); 751 extern bfd_boolean bfd_sunos_record_link_assignment 752 (bfd *, struct bfd_link_info *, const char *); 753 extern bfd_boolean bfd_sunos_size_dynamic_sections 754 (bfd *, struct bfd_link_info *, struct bfd_section **, 755 struct bfd_section **, struct bfd_section **); 756 757 /* Linux shared library support routines for the linker. */ 758 759 extern bfd_boolean bfd_i386linux_size_dynamic_sections 760 (bfd *, struct bfd_link_info *); 761 extern bfd_boolean bfd_m68klinux_size_dynamic_sections 762 (bfd *, struct bfd_link_info *); 763 extern bfd_boolean bfd_sparclinux_size_dynamic_sections 764 (bfd *, struct bfd_link_info *); 765 766 /* mmap hacks */ 767 768 struct _bfd_window_internal; 769 typedef struct _bfd_window_internal bfd_window_internal; 770 771 typedef struct _bfd_window 772 { 773 /* What the user asked for. */ 774 void *data; 775 bfd_size_type size; 776 /* The actual window used by BFD. Small user-requested read-only 777 regions sharing a page may share a single window into the object 778 file. Read-write versions shouldn't until I've fixed things to 779 keep track of which portions have been claimed by the 780 application; don't want to give the same region back when the 781 application wants two writable copies! */ 782 struct _bfd_window_internal *i; 783 } 784 bfd_window; 785 786 extern void bfd_init_window 787 (bfd_window *); 788 extern void bfd_free_window 789 (bfd_window *); 790 extern bfd_boolean bfd_get_file_window 791 (bfd *, file_ptr, bfd_size_type, bfd_window *, bfd_boolean); 792 793 /* XCOFF support routines for the linker. */ 794 795 extern bfd_boolean bfd_xcoff_split_import_path 796 (bfd *, const char *, const char **, const char **); 797 extern bfd_boolean bfd_xcoff_set_archive_import_path 798 (struct bfd_link_info *, bfd *, const char *); 799 extern bfd_boolean bfd_xcoff_link_record_set 800 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_size_type); 801 extern bfd_boolean bfd_xcoff_import_symbol 802 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_vma, 803 const char *, const char *, const char *, unsigned int); 804 extern bfd_boolean bfd_xcoff_export_symbol 805 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *); 806 extern bfd_boolean bfd_xcoff_link_count_reloc 807 (bfd *, struct bfd_link_info *, const char *); 808 extern bfd_boolean bfd_xcoff_record_link_assignment 809 (bfd *, struct bfd_link_info *, const char *); 810 extern bfd_boolean bfd_xcoff_size_dynamic_sections 811 (bfd *, struct bfd_link_info *, const char *, const char *, 812 unsigned long, unsigned long, unsigned long, bfd_boolean, 813 int, bfd_boolean, unsigned int, struct bfd_section **, bfd_boolean); 814 extern bfd_boolean bfd_xcoff_link_generate_rtinit 815 (bfd *, const char *, const char *, bfd_boolean); 816 817 /* XCOFF support routines for ar. */ 818 extern bfd_boolean bfd_xcoff_ar_archive_set_magic 819 (bfd *, char *); 820 821 /* Externally visible COFF routines. */ 822 823 #if defined(__STDC__) || defined(ALMOST_STDC) 824 struct internal_syment; 825 union internal_auxent; 826 #endif 827 828 extern bfd_boolean bfd_coff_set_symbol_class 829 (bfd *, struct bfd_symbol *, unsigned int); 830 831 extern bfd_boolean bfd_m68k_coff_create_embedded_relocs 832 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, char **); 833 834 /* ARM VFP11 erratum workaround support. */ 835 typedef enum 836 { 837 BFD_ARM_VFP11_FIX_DEFAULT, 838 BFD_ARM_VFP11_FIX_NONE, 839 BFD_ARM_VFP11_FIX_SCALAR, 840 BFD_ARM_VFP11_FIX_VECTOR 841 } bfd_arm_vfp11_fix; 842 843 extern void bfd_elf32_arm_init_maps 844 (bfd *); 845 846 extern void bfd_elf32_arm_set_vfp11_fix 847 (bfd *, struct bfd_link_info *); 848 849 extern void bfd_elf32_arm_set_cortex_a8_fix 850 (bfd *, struct bfd_link_info *); 851 852 extern bfd_boolean bfd_elf32_arm_vfp11_erratum_scan 853 (bfd *, struct bfd_link_info *); 854 855 extern void bfd_elf32_arm_vfp11_fix_veneer_locations 856 (bfd *, struct bfd_link_info *); 857 858 /* ARM STM STM32L4XX erratum workaround support. */ 859 typedef enum 860 { 861 BFD_ARM_STM32L4XX_FIX_NONE, 862 BFD_ARM_STM32L4XX_FIX_DEFAULT, 863 BFD_ARM_STM32L4XX_FIX_ALL 864 } bfd_arm_stm32l4xx_fix; 865 866 extern void bfd_elf32_arm_set_stm32l4xx_fix 867 (bfd *, struct bfd_link_info *); 868 869 extern bfd_boolean bfd_elf32_arm_stm32l4xx_erratum_scan 870 (bfd *, struct bfd_link_info *); 871 872 extern void bfd_elf32_arm_stm32l4xx_fix_veneer_locations 873 (bfd *, struct bfd_link_info *); 874 875 /* ARM Interworking support. Called from linker. */ 876 extern bfd_boolean bfd_arm_allocate_interworking_sections 877 (struct bfd_link_info *); 878 879 extern bfd_boolean bfd_arm_process_before_allocation 880 (bfd *, struct bfd_link_info *, int); 881 882 extern bfd_boolean bfd_arm_get_bfd_for_interworking 883 (bfd *, struct bfd_link_info *); 884 885 /* PE ARM Interworking support. Called from linker. */ 886 extern bfd_boolean bfd_arm_pe_allocate_interworking_sections 887 (struct bfd_link_info *); 888 889 extern bfd_boolean bfd_arm_pe_process_before_allocation 890 (bfd *, struct bfd_link_info *, int); 891 892 extern bfd_boolean bfd_arm_pe_get_bfd_for_interworking 893 (bfd *, struct bfd_link_info *); 894 895 /* ELF ARM Interworking support. Called from linker. */ 896 extern bfd_boolean bfd_elf32_arm_allocate_interworking_sections 897 (struct bfd_link_info *); 898 899 extern bfd_boolean bfd_elf32_arm_process_before_allocation 900 (bfd *, struct bfd_link_info *); 901 902 void bfd_elf32_arm_set_target_relocs 903 (bfd *, struct bfd_link_info *, int, char *, int, int, bfd_arm_vfp11_fix, 904 bfd_arm_stm32l4xx_fix, int, int, int, int, int); 905 906 extern bfd_boolean bfd_elf32_arm_get_bfd_for_interworking 907 (bfd *, struct bfd_link_info *); 908 909 extern bfd_boolean bfd_elf32_arm_add_glue_sections_to_bfd 910 (bfd *, struct bfd_link_info *); 911 912 extern void bfd_elf32_arm_keep_private_stub_output_sections 913 (struct bfd_link_info *); 914 915 /* ELF ARM mapping symbol support. */ 916 #define BFD_ARM_SPECIAL_SYM_TYPE_MAP (1 << 0) 917 #define BFD_ARM_SPECIAL_SYM_TYPE_TAG (1 << 1) 918 #define BFD_ARM_SPECIAL_SYM_TYPE_OTHER (1 << 2) 919 #define BFD_ARM_SPECIAL_SYM_TYPE_ANY (~0) 920 921 extern bfd_boolean bfd_is_arm_special_symbol_name 922 (const char *, int); 923 924 extern void bfd_elf32_arm_set_byteswap_code 925 (struct bfd_link_info *, int); 926 927 extern void bfd_elf32_arm_use_long_plt (void); 928 929 /* ARM Note section processing. */ 930 extern bfd_boolean bfd_arm_merge_machines 931 (bfd *, bfd *); 932 933 extern bfd_boolean bfd_arm_update_notes 934 (bfd *, const char *); 935 936 extern unsigned int bfd_arm_get_mach_from_notes 937 (bfd *, const char *); 938 939 /* ARM stub generation support. Called from the linker. */ 940 extern int elf32_arm_setup_section_lists 941 (bfd *, struct bfd_link_info *); 942 extern void elf32_arm_next_input_section 943 (struct bfd_link_info *, struct bfd_section *); 944 extern bfd_boolean elf32_arm_size_stubs 945 (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, 946 struct bfd_section * (*) (const char *, struct bfd_section *, 947 struct bfd_section *, unsigned int), 948 void (*) (void)); 949 extern bfd_boolean elf32_arm_build_stubs 950 (struct bfd_link_info *); 951 952 /* ARM unwind section editing support. */ 953 extern bfd_boolean elf32_arm_fix_exidx_coverage 954 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean); 955 956 /* C6x unwind section editing support. */ 957 extern bfd_boolean elf32_tic6x_fix_exidx_coverage 958 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean); 959 960 extern void bfd_elf64_aarch64_init_maps 961 (bfd *); 962 963 extern void bfd_elf32_aarch64_init_maps 964 (bfd *); 965 966 extern void bfd_elf64_aarch64_set_options 967 (bfd *, struct bfd_link_info *, int, int, int, int, int, int); 968 969 extern void bfd_elf32_aarch64_set_options 970 (bfd *, struct bfd_link_info *, int, int, int, int, int, int); 971 972 /* ELF AArch64 mapping symbol support. */ 973 #define BFD_AARCH64_SPECIAL_SYM_TYPE_MAP (1 << 0) 974 #define BFD_AARCH64_SPECIAL_SYM_TYPE_TAG (1 << 1) 975 #define BFD_AARCH64_SPECIAL_SYM_TYPE_OTHER (1 << 2) 976 #define BFD_AARCH64_SPECIAL_SYM_TYPE_ANY (~0) 977 extern bfd_boolean bfd_is_aarch64_special_symbol_name 978 (const char * name, int type); 979 980 /* AArch64 stub generation support for ELF64. Called from the linker. */ 981 extern int elf64_aarch64_setup_section_lists 982 (bfd *, struct bfd_link_info *); 983 extern void elf64_aarch64_next_input_section 984 (struct bfd_link_info *, struct bfd_section *); 985 extern bfd_boolean elf64_aarch64_size_stubs 986 (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, 987 struct bfd_section * (*) (const char *, struct bfd_section *), 988 void (*) (void)); 989 extern bfd_boolean elf64_aarch64_build_stubs 990 (struct bfd_link_info *); 991 /* AArch64 stub generation support for ELF32. Called from the linker. */ 992 extern int elf32_aarch64_setup_section_lists 993 (bfd *, struct bfd_link_info *); 994 extern void elf32_aarch64_next_input_section 995 (struct bfd_link_info *, struct bfd_section *); 996 extern bfd_boolean elf32_aarch64_size_stubs 997 (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, 998 struct bfd_section * (*) (const char *, struct bfd_section *), 999 void (*) (void)); 1000 extern bfd_boolean elf32_aarch64_build_stubs 1001 (struct bfd_link_info *); 1002 1003 1004 /* TI COFF load page support. */ 1005 extern void bfd_ticoff_set_section_load_page 1006 (struct bfd_section *, int); 1007 1008 extern int bfd_ticoff_get_section_load_page 1009 (struct bfd_section *); 1010 1011 /* H8/300 functions. */ 1012 extern bfd_vma bfd_h8300_pad_address 1013 (bfd *, bfd_vma); 1014 1015 /* IA64 Itanium code generation. Called from linker. */ 1016 extern void bfd_elf32_ia64_after_parse 1017 (int); 1018 1019 extern void bfd_elf64_ia64_after_parse 1020 (int); 1021 1022 /* V850 Note manipulation routines. */ 1023 extern bfd_boolean v850_elf_create_sections 1024 (struct bfd_link_info *); 1025 1026 extern bfd_boolean v850_elf_set_note 1027 (bfd *, unsigned int, unsigned int); 1028
