1 /* Main header file for the bfd library -- portable access to object files. 2 3 Copyright (C) 1990-2018 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 <stdarg.h> 38 #include <sys/stat.h> 39 40 #if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE) 41 #ifndef SABER 42 /* This hack is to avoid a problem with some strict ANSI C preprocessors. 43 The problem is, "32_" is not a valid preprocessing token, and we don't 44 want extra underscores (e.g., "nlm_32_"). The XCONCAT2 macro will 45 cause the inner CONCAT2 macros to be evaluated first, producing 46 still-valid pp-tokens. Then the final concatenation can be done. */ 47 #undef CONCAT4 48 #define CONCAT4(a,b,c,d) XCONCAT2(CONCAT2(a,b),CONCAT2(c,d)) 49 #endif 50 #endif 51 52 /* This is a utility macro to handle the situation where the code 53 wants to place a constant string into the code, followed by a 54 comma and then the length of the string. Doing this by hand 55 is error prone, so using this macro is safer. */ 56 #define STRING_COMMA_LEN(STR) (STR), (sizeof (STR) - 1) 57 /* Unfortunately it is not possible to use the STRING_COMMA_LEN macro 58 to create the arguments to another macro, since the preprocessor 59 will mis-count the number of arguments to the outer macro (by not 60 evaluating STRING_COMMA_LEN and so missing the comma). This is a 61 problem for example when trying to use STRING_COMMA_LEN to build 62 the arguments to the strncmp() macro. Hence this alternative 63 definition of strncmp is provided here. 64 65 Note - these macros do NOT work if STR2 is not a constant string. */ 66 #define CONST_STRNEQ(STR1,STR2) (strncmp ((STR1), (STR2), sizeof (STR2) - 1) == 0) 67 /* strcpy() can have a similar problem, but since we know we are 68 copying a constant string, we can use memcpy which will be faster 69 since there is no need to check for a NUL byte inside STR. We 70 can also save time if we do not need to copy the terminating NUL. */ 71 #define LITMEMCPY(DEST,STR2) memcpy ((DEST), (STR2), sizeof (STR2) - 1) 72 #define LITSTRCPY(DEST,STR2) memcpy ((DEST), (STR2), sizeof (STR2)) 73 74 75 #define BFD_SUPPORTS_PLUGINS @supports_plugins@ 76 77 /* The word size used by BFD on the host. This may be 64 with a 32 78 bit target if the host is 64 bit, or if other 64 bit targets have 79 been selected with --enable-targets, or if --enable-64-bit-bfd. */ 80 #define BFD_ARCH_SIZE @wordsize@ 81 82 /* The word size of the default bfd target. */ 83 #define BFD_DEFAULT_TARGET_SIZE @bfd_default_target_size@ 84 85 #define BFD_HOST_64BIT_LONG @BFD_HOST_64BIT_LONG@ 86 #define BFD_HOST_64BIT_LONG_LONG @BFD_HOST_64BIT_LONG_LONG@ 87 #if @BFD_HOST_64_BIT_DEFINED@ 88 #define BFD_HOST_64_BIT @BFD_HOST_64_BIT@ 89 #define BFD_HOST_U_64_BIT @BFD_HOST_U_64_BIT@ 90 typedef BFD_HOST_64_BIT bfd_int64_t; 91 typedef BFD_HOST_U_64_BIT bfd_uint64_t; 92 #endif 93 94 #if BFD_ARCH_SIZE >= 64 95 #define BFD64 96 #endif 97 98 #ifndef INLINE 99 #if __GNUC__ >= 2 100 #define INLINE __inline__ 101 #else 102 #define INLINE 103 #endif 104 #endif 105 106 /* Declaring a type wide enough to hold a host long and a host pointer. */ 107 #define BFD_HOSTPTR_T @BFD_HOSTPTR_T@ 108 typedef BFD_HOSTPTR_T bfd_hostptr_t; 109 110 /* Forward declaration. */ 111 typedef struct bfd bfd; 112 113 /* Boolean type used in bfd. Too many systems define their own 114 versions of "boolean" for us to safely typedef a "boolean" of 115 our own. Using an enum for "bfd_boolean" has its own set of 116 problems, with strange looking casts required to avoid warnings 117 on some older compilers. Thus we just use an int. 118 119 General rule: Functions which are bfd_boolean return TRUE on 120 success and FALSE on failure (unless they're a predicate). */ 121 122 typedef int bfd_boolean; 123 #undef FALSE 124 #undef TRUE 125 #define FALSE 0 126 #define TRUE 1 127 128 #ifdef BFD64 129 130 #ifndef BFD_HOST_64_BIT 131 #error No 64 bit integer type available 132 #endif /* ! defined (BFD_HOST_64_BIT) */ 133 134 typedef BFD_HOST_U_64_BIT bfd_vma; 135 typedef BFD_HOST_64_BIT bfd_signed_vma; 136 typedef BFD_HOST_U_64_BIT bfd_size_type; 137 typedef BFD_HOST_U_64_BIT symvalue; 138 139 #if BFD_HOST_64BIT_LONG 140 #define BFD_VMA_FMT "l" 141 #elif defined (__MSVCRT__) 142 #define BFD_VMA_FMT "I64" 143 #else 144 #define BFD_VMA_FMT "ll" 145 #endif 146 147 #ifndef fprintf_vma 148 #define sprintf_vma(s,x) sprintf (s, "%016" BFD_VMA_FMT "x", x) 149 #define fprintf_vma(f,x) fprintf (f, "%016" BFD_VMA_FMT "x", x) 150 #endif 151 152 #else /* not BFD64 */ 153 154 /* Represent a target address. Also used as a generic unsigned type 155 which is guaranteed to be big enough to hold any arithmetic types 156 we need to deal with. */ 157 typedef unsigned long bfd_vma; 158 159 /* A generic signed type which is guaranteed to be big enough to hold any 160 arithmetic types we need to deal with. Can be assumed to be compatible 161 with bfd_vma in the same way that signed and unsigned ints are compatible 162 (as parameters, in assignment, etc). */ 163 typedef long bfd_signed_vma; 164 165 typedef unsigned long symvalue; 166 typedef unsigned long bfd_size_type; 167 168 /* Print a bfd_vma x on stream s. */ 169 #define BFD_VMA_FMT "l" 170 #define fprintf_vma(s,x) fprintf (s, "%08" BFD_VMA_FMT "x", x) 171 #define sprintf_vma(s,x) sprintf (s, "%08" BFD_VMA_FMT "x", x) 172 173 #endif /* not BFD64 */ 174 175 #define HALF_BFD_SIZE_TYPE \ 176 (((bfd_size_type) 1) << (8 * sizeof (bfd_size_type) / 2)) 177 178 #ifndef BFD_HOST_64_BIT 179 /* Fall back on a 32 bit type. The idea is to make these types always 180 available for function return types, but in the case that 181 BFD_HOST_64_BIT is undefined such a function should abort or 182 otherwise signal an error. */ 183 typedef bfd_signed_vma bfd_int64_t; 184 typedef bfd_vma bfd_uint64_t; 185 #endif 186 187 /* An offset into a file. BFD always uses the largest possible offset 188 based on the build time availability of fseek, fseeko, or fseeko64. */ 189 typedef @bfd_file_ptr@ file_ptr; 190 typedef unsigned @bfd_file_ptr@ ufile_ptr; 191 192 extern void bfd_sprintf_vma (bfd *, char *, bfd_vma); 193 extern void bfd_fprintf_vma (bfd *, void *, bfd_vma); 194 195 #define printf_vma(x) fprintf_vma(stdout,x) 196 #define bfd_printf_vma(abfd,x) bfd_fprintf_vma (abfd,stdout,x) 197 198 typedef unsigned int flagword; /* 32 bits of flags */ 199 typedef unsigned char bfd_byte; 200 201 /* 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. */ 214 215 /* A count of carsyms (canonical archive symbols). */ 216 typedef unsigned long symindex; 217 218 /* How to perform a relocation. */ 219 typedef const struct reloc_howto_struct reloc_howto_type; 220 221 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0) 222 223 /* General purpose part of a symbol X; 224 target specific parts are in libcoff.h, libaout.h, etc. */ 225 226 #define bfd_get_section(x) ((x)->section) 227 #define bfd_get_output_section(x) ((x)->section->output_section) 228 #define bfd_set_section(x,y) ((x)->section) = (y) 229 #define bfd_asymbol_base(x) ((x)->section->vma) 230 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value) 231 #define bfd_asymbol_name(x) ((x)->name) 232 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/ 233 #define bfd_asymbol_bfd(x) ((x)->the_bfd) 234 #define bfd_asymbol_flavour(x) \ 235 (((x)->flags & BSF_SYNTHETIC) != 0 \ 236 ? bfd_target_unknown_flavour \ 237 : bfd_asymbol_bfd (x)->xvec->flavour) 238 239 /* A canonical archive symbol. */ 240 /* This is a type pun with struct ranlib on purpose! */ 241 typedef struct carsym 242 { 243 char *name; 244 file_ptr file_offset; /* Look here to find the file. */ 245 } 246 carsym; /* To make these you call a carsymogen. */ 247 248 /* Used in generating armaps (archive tables of contents). 249 Perhaps just a forward definition would do? */ 250 struct orl /* Output ranlib. */ 251 { 252 char **name; /* Symbol name. */ 253 union 254 { 255 file_ptr pos; 256 bfd *abfd; 257 } u; /* bfd* or file position. */ 258 int namidx; /* Index into string table. */ 259 }; 260 261 /* Linenumber stuff. */ 262 typedef struct lineno_cache_entry 263 { 264 unsigned int line_number; /* Linenumber from start of function. */ 265 union 266 { 267 struct bfd_symbol *sym; /* Function name. */ 268 bfd_vma offset; /* Offset into section. */ 269 } u; 270 } 271 alent; 272 273 /* Object and core file sections. */ 274 typedef struct bfd_section *sec_ptr; 275 276 #define align_power(addr, align) \ 277 (((addr) + ((bfd_vma) 1 << (align)) - 1) & (-((bfd_vma) 1 << (align)))) 278 279 /* Align an address upward to a boundary, expressed as a number of bytes. 280 E.g. align to an 8-byte boundary with argument of 8. Take care never 281 to wrap around if the address is within boundary-1 of the end of the 282 address space. */ 283 #define BFD_ALIGN(this, boundary) \ 284 ((((bfd_vma) (this) + (boundary) - 1) >= (bfd_vma) (this)) \ 285 ? (((bfd_vma) (this) + ((boundary) - 1)) & ~ (bfd_vma) ((boundary)-1)) \ 286 : ~ (bfd_vma) 0) 287 288 #define bfd_get_section_name(bfd, ptr) ((void) bfd, (ptr)->name) 289 #define bfd_get_section_vma(bfd, ptr) ((void) bfd, (ptr)->vma) 290 #define bfd_get_section_lma(bfd, ptr) ((void) bfd, (ptr)->lma) 291 #define bfd_get_section_alignment(bfd, ptr) ((void) bfd, \ 292 (ptr)->alignment_power) 293 #define bfd_section_name(bfd, ptr) ((ptr)->name) 294 #define bfd_section_size(bfd, ptr) ((ptr)->size) 295 #define bfd_get_section_size(ptr) ((ptr)->size) 296 #define bfd_section_vma(bfd, ptr) ((ptr)->vma) 297 #define bfd_section_lma(bfd, ptr) ((ptr)->lma) 298 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power) 299 #define bfd_get_section_flags(bfd, ptr) ((void) bfd, (ptr)->flags) 300 #define bfd_get_section_userdata(bfd, ptr) ((void) bfd, (ptr)->userdata) 301 302 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0) 303 304 #define bfd_get_section_limit_octets(bfd, sec) \ 305 ((bfd)->direction != write_direction && (sec)->rawsize != 0 \ 306 ? (sec)->rawsize : (sec)->size) 307 308 /* Find the address one past the end of SEC. */ 309 #define bfd_get_section_limit(bfd, sec) \ 310 (bfd_get_section_limit_octets(bfd, sec) / bfd_octets_per_byte (bfd)) 311 312 /* Return TRUE if input section SEC has been discarded. */ 313 #define discarded_section(sec) \ 314 (!bfd_is_abs_section (sec) \ 315 && bfd_is_abs_section ((sec)->output_section) \ 316 && (sec)->sec_info_type != SEC_INFO_TYPE_MERGE \ 317 && (sec)->sec_info_type != SEC_INFO_TYPE_JUST_SYMS) 318 319 typedef enum bfd_print_symbol 320 { 321 bfd_print_symbol_name, 322 bfd_print_symbol_more, 323 bfd_print_symbol_all 324 } bfd_print_symbol_type; 325 326 /* Information about a symbol that nm needs. */ 327 328 typedef struct _symbol_info 329 { 330 symvalue value; 331 char type; 332 const char *name; /* Symbol name. */ 333 unsigned char stab_type; /* Stab type. */ 334 char stab_other; /* Stab other. */ 335 short stab_desc; /* Stab desc. */ 336 const char *stab_name; /* String for stab type. */ 337 } symbol_info; 338 339 /* Get the name of a stabs type code. */ 340 341 extern const char *bfd_get_stab_name (int); 342 343 /* Hash table routines. There is no way to free up a hash table. */ 344 345 /* An element in the hash table. Most uses will actually use a larger 346 structure, and an instance of this will be the first field. */ 347 348 struct bfd_hash_entry 349 { 350 /* Next entry for this hash code. */ 351 struct bfd_hash_entry *next; 352 /* String being hashed. */ 353 const char *string; 354 /* Hash code. This is the full hash code, not the index into the 355 table. */ 356 unsigned long hash; 357 }; 358 359 /* A hash table. */ 360 361 struct bfd_hash_table 362 { 363 /* The hash array. */ 364 struct bfd_hash_entry **table; 365 /* A function used to create new elements in the hash table. The 366 first entry is itself a pointer to an element. When this 367 function is first invoked, this pointer will be NULL. However, 368 having the pointer permits a hierarchy of method functions to be 369 built each of which calls the function in the superclass. Thus 370 each function should be written to allocate a new block of memory 371 only if the argument is NULL. */ 372 struct bfd_hash_entry *(*newfunc) 373 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 374 /* An objalloc for this hash table. This is a struct objalloc *, 375 but we use void * to avoid requiring the inclusion of objalloc.h. */ 376 void *memory; 377 /* The number of slots in the hash table. */ 378 unsigned int size; 379 /* The number of entries in the hash table. */ 380 unsigned int count; 381 /* The size of elements. */ 382 unsigned int entsize; 383 /* If non-zero, don't grow the hash table. */ 384 unsigned int frozen:1; 385 }; 386 387 /* Initialize a hash table. */ 388 extern bfd_boolean bfd_hash_table_init 389 (struct bfd_hash_table *, 390 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 391 struct bfd_hash_table *, 392 const char *), 393 unsigned int); 394 395 /* Initialize a hash table specifying a size. */ 396 extern bfd_boolean bfd_hash_table_init_n 397 (struct bfd_hash_table *, 398 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 399 struct bfd_hash_table *, 400 const char *), 401 unsigned int, unsigned int); 402 403 /* Free up a hash table. */ 404 extern void bfd_hash_table_free 405 (struct bfd_hash_table *); 406 407 /* Look up a string in a hash table. If CREATE is TRUE, a new entry 408 will be created for this string if one does not already exist. The 409 COPY argument must be TRUE if this routine should copy the string 410 into newly allocated memory when adding an entry. */ 411 extern struct bfd_hash_entry *bfd_hash_lookup 412 (struct bfd_hash_table *, const char *, bfd_boolean create, 413 bfd_boolean copy); 414 415 /* Insert an entry in a hash table. */ 416 extern struct bfd_hash_entry *bfd_hash_insert 417 (struct bfd_hash_table *, const char *, unsigned long); 418 419 /* Rename an entry in a hash table. */ 420 extern void bfd_hash_rename 421 (struct bfd_hash_table *, const char *, struct bfd_hash_entry *); 422 423 /* Replace an entry in a hash table. */ 424 extern void bfd_hash_replace 425 (struct bfd_hash_table *, struct bfd_hash_entry *old, 426 struct bfd_hash_entry *nw); 427 428 /* Base method for creating a hash table entry. */ 429 extern struct bfd_hash_entry *bfd_hash_newfunc 430 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 431 432 /* Grab some space for a hash table entry. */ 433 extern void *bfd_hash_allocate 434 (struct bfd_hash_table *, unsigned int); 435 436 /* Traverse a hash table in a random order, calling a function on each 437 element. If the function returns FALSE, the traversal stops. The 438 INFO argument is passed to the function. */ 439 extern void bfd_hash_traverse 440 (struct bfd_hash_table *, 441 bfd_boolean (*) (struct bfd_hash_entry *, void *), 442 void *info); 443 444 /* Allows the default size of a hash table to be configured. New hash 445 tables allocated using bfd_hash_table_init will be created with 446 this size. */ 447 extern unsigned long bfd_hash_set_default_size (unsigned long); 448 449 /* Types of compressed DWARF debug sections. We currently support 450 zlib. */ 451 enum compressed_debug_section_type 452 { 453 COMPRESS_DEBUG_NONE = 0, 454 COMPRESS_DEBUG = 1 << 0, 455 COMPRESS_DEBUG_GNU_ZLIB = COMPRESS_DEBUG | 1 << 1, 456 COMPRESS_DEBUG_GABI_ZLIB = COMPRESS_DEBUG | 1 << 2 457 }; 458 459 /* This structure is used to keep track of stabs in sections 460 information while linking. */ 461 462 struct stab_info 463 { 464 /* A hash table used to hold stabs strings. */ 465 struct bfd_strtab_hash *strings; 466 /* The header file hash table. */ 467 struct bfd_hash_table includes; 468 /* The first .stabstr section. */ 469 struct bfd_section *stabstr; 470 }; 471 472 #define COFF_SWAP_TABLE (void *) &bfd_coff_std_swap_table 473 474 /* User program access to BFD facilities. */ 475 476 /* Direct I/O routines, for programs which know more about the object 477 file than BFD does. Use higher level routines if possible. */ 478 479 extern bfd_size_type bfd_bread (void *, bfd_size_type, bfd *); 480 extern bfd_size_type bfd_bwrite (const void *, bfd_size_type, bfd *); 481 extern int bfd_seek (bfd *, file_ptr, int); 482 extern file_ptr bfd_tell (bfd *); 483 extern int bfd_flush (bfd *); 484 extern int bfd_stat (bfd *, struct stat *); 485 486 /* Deprecated old routines. */ 487 #if __GNUC__ 488 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD) \ 489 (_bfd_warn_deprecated ("bfd_read", __FILE__, __LINE__, __FUNCTION__), \ 490 bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 491 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD) \ 492 (_bfd_warn_deprecated ("bfd_write", __FILE__, __LINE__, __FUNCTION__), \ 493 bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 494 #else 495 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD) \ 496 (_bfd_warn_deprecated ("bfd_read", (const char *) 0, 0, (const char *) 0), \ 497 bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 498 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD) \ 499 (_bfd_warn_deprecated ("bfd_write", (const char *) 0, 0, (const char *) 0),\ 500 bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 501 #endif 502 extern void _bfd_warn_deprecated (const char *, const char *, int, const char *); 503 504 /* Cast from const char * to char * so that caller can assign to 505 a char * without a warning. */ 506 #define bfd_get_filename(abfd) ((char *) (abfd)->filename) 507 #define bfd_get_cacheable(abfd) ((abfd)->cacheable) 508 #define bfd_get_format(abfd) ((abfd)->format) 509 #define bfd_get_target(abfd) ((abfd)->xvec->name) 510 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour) 511 #define bfd_family_coff(abfd) \ 512 (bfd_get_flavour (abfd) == bfd_target_coff_flavour || \ 513 bfd_get_flavour (abfd) == bfd_target_xcoff_flavour) 514 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG) 515 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE) 516 #define bfd_header_big_endian(abfd) \ 517 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG) 518 #define bfd_header_little_endian(abfd) \ 519 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE) 520 #define bfd_get_file_flags(abfd) ((abfd)->flags) 521 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags) 522 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags) 523 #define bfd_has_map(abfd) ((abfd)->has_armap) 524 #define bfd_is_thin_archive(abfd) ((abfd)->is_thin_archive) 525 526 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types) 527 #define bfd_usrdata(abfd) ((abfd)->usrdata) 528 529 #define bfd_get_start_address(abfd) ((abfd)->start_address) 530 #define bfd_get_symcount(abfd) ((abfd)->symcount) 531 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols) 532 #define bfd_count_sections(abfd) ((abfd)->section_count) 533 534 #define bfd_get_dynamic_symcount(abfd) ((abfd)->dynsymcount) 535 536 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char) 537 538 extern bfd_boolean bfd_cache_close 539 (bfd *abfd); 540 /* NB: This declaration should match the autogenerated one in libbfd.h. */ 541 542 extern bfd_boolean bfd_cache_close_all (void); 543 544 extern bfd_boolean bfd_record_phdr 545 (bfd *, unsigned long, bfd_boolean, flagword, bfd_boolean, bfd_vma, 546 bfd_boolean, bfd_boolean, unsigned int, struct bfd_section **); 547 548 /* Byte swapping routines. */ 549 550 bfd_uint64_t bfd_getb64 (const void *); 551 bfd_uint64_t bfd_getl64 (const void *); 552 bfd_int64_t bfd_getb_signed_64 (const void *); 553 bfd_int64_t bfd_getl_signed_64 (const void *); 554 bfd_vma bfd_getb32 (const void *); 555 bfd_vma bfd_getl32 (const void *); 556 bfd_signed_vma bfd_getb_signed_32 (const void *); 557 bfd_signed_vma bfd_getl_signed_32 (const void *); 558 bfd_vma bfd_getb16 (const void *); 559 bfd_vma bfd_getl16 (const void *); 560 bfd_signed_vma bfd_getb_signed_16 (const void *); 561 bfd_signed_vma bfd_getl_signed_16 (const void *); 562 void bfd_putb64 (bfd_uint64_t, void *); 563 void bfd_putl64 (bfd_uint64_t, void *); 564 void bfd_putb32 (bfd_vma, void *); 565 void bfd_putl32 (bfd_vma, void *); 566 void bfd_putb16 (bfd_vma, void *); 567 void bfd_putl16 (bfd_vma, void *); 568 569 /* Byte swapping routines which take size and endiannes as arguments. */ 570 571 bfd_uint64_t bfd_get_bits (const void *, int, bfd_boolean); 572 void bfd_put_bits (bfd_uint64_t, void *, int, bfd_boolean); 573 574 #if defined(__STDC__) || defined(ALMOST_STDC) 575 struct ecoff_debug_info; 576 struct ecoff_debug_swap; 577 struct ecoff_extr; 578 struct bfd_symbol; 579 struct bfd_link_info; 580 struct bfd_link_hash_entry; 581 struct bfd_section_already_linked; 582 struct bfd_elf_version_tree; 583 #endif 584 585 extern bfd_boolean bfd_section_already_linked_table_init (void); 586 extern void bfd_section_already_linked_table_free (void); 587 extern bfd_boolean _bfd_handle_already_linked 588 (struct bfd_section *, struct bfd_section_already_linked *, 589 struct bfd_link_info *); 590 591 /* Externally visible ECOFF routines. */ 592 593 extern bfd_vma bfd_ecoff_get_gp_value 594 (bfd * abfd); 595 extern bfd_boolean bfd_ecoff_set_gp_value 596 (bfd *abfd, bfd_vma gp_value); 597 extern bfd_boolean bfd_ecoff_set_regmasks 598 (bfd *abfd, unsigned long gprmask, unsigned long fprmask, 599 unsigned long *cprmask); 600 extern void *bfd_ecoff_debug_init 601 (bfd *output_bfd, struct ecoff_debug_info *output_debug, 602 const struct ecoff_debug_swap *output_swap, struct bfd_link_info *); 603 extern void bfd_ecoff_debug_free 604 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 605 const struct ecoff_debug_swap *output_swap, struct bfd_link_info *); 606 extern bfd_boolean bfd_ecoff_debug_accumulate 607 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 608 const struct ecoff_debug_swap *output_swap, bfd *input_bfd, 609 struct ecoff_debug_info *input_debug, 610 const struct ecoff_debug_swap *input_swap, struct bfd_link_info *); 611 extern bfd_boolean bfd_ecoff_debug_accumulate_other 612 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 613 const struct ecoff_debug_swap *output_swap, bfd *input_bfd, 614 struct bfd_link_info *); 615 extern bfd_boolean bfd_ecoff_debug_externals 616 (bfd *abfd, struct ecoff_debug_info *debug, 617 const struct ecoff_debug_swap *swap, bfd_boolean relocatable, 618 bfd_boolean (*get_extr) (struct bfd_symbol *, struct ecoff_extr *), 619 void (*set_index) (struct bfd_symbol *, bfd_size_type)); 620 extern bfd_boolean bfd_ecoff_debug_one_external 621 (bfd *abfd, struct ecoff_debug_info *debug, 622 const struct ecoff_debug_swap *swap, const char *name, 623 struct ecoff_extr *esym); 624 extern bfd_size_type bfd_ecoff_debug_size 625 (bfd *abfd, struct ecoff_debug_info *debug, 626 const struct ecoff_debug_swap *swap); 627 extern bfd_boolean bfd_ecoff_write_debug 628 (bfd *abfd, struct ecoff_debug_info *debug, 629 const struct ecoff_debug_swap *swap, file_ptr where); 630 extern bfd_boolean bfd_ecoff_write_accumulated_debug 631 (void *handle, bfd *abfd, struct ecoff_debug_info *debug, 632 const struct ecoff_debug_swap *swap, 633 struct bfd_link_info *info, file_ptr where); 634 635 /* Externally visible ELF routines. */ 636 637 struct bfd_link_needed_list 638 { 639 struct bfd_link_needed_list *next; 640 bfd *by; 641 const char *name; 642 }; 643 644 enum dynamic_lib_link_class { 645 DYN_NORMAL = 0, 646 DYN_AS_NEEDED = 1, 647 DYN_DT_NEEDED = 2, 648 DYN_NO_ADD_NEEDED = 4, 649 DYN_NO_NEEDED = 8 650 }; 651 652 enum notice_asneeded_action { 653 notice_as_needed, 654 notice_not_needed, 655 notice_needed 656 }; 657 658 extern bfd_boolean bfd_elf_record_link_assignment 659 (bfd *, struct bfd_link_info *, const char *, bfd_boolean, 660 bfd_boolean); 661 extern struct bfd_link_needed_list *bfd_elf_get_needed_list 662 (bfd *, struct bfd_link_info *); 663 extern bfd_boolean bfd_elf_get_bfd_needed_list 664 (bfd *, struct bfd_link_needed_list **); 665 extern bfd_boolean bfd_elf_stack_segment_size (bfd *, struct bfd_link_info *, 666 const char *, bfd_vma); 667 extern bfd_boolean bfd_elf_size_dynamic_sections 668 (bfd *, const char *, const char *, const char *, const char *, const char *, 669 const char * const *, struct bfd_link_info *, struct bfd_section **); 670 extern bfd_boolean bfd_elf_size_dynsym_hash_dynstr 671 (bfd *, struct bfd_link_info *); 672 extern void bfd_elf_set_dt_needed_name 673 (bfd *, const char *); 674 extern const char *bfd_elf_get_dt_soname 675 (bfd *); 676 extern void bfd_elf_set_dyn_lib_class 677 (bfd *, enum dynamic_lib_link_class); 678 extern int bfd_elf_get_dyn_lib_class 679 (bfd *); 680 extern struct bfd_link_needed_list *bfd_elf_get_runpath_list 681 (bfd *, struct bfd_link_info *); 682 extern int bfd_elf_discard_info 683 (bfd *, struct bfd_link_info *); 684 extern unsigned int _bfd_elf_default_action_discarded 685 (struct bfd_section *); 686 687 /* Return an upper bound on the number of bytes required to store a 688 copy of ABFD's program header table entries. Return -1 if an error 689 occurs; bfd_get_error will return an appropriate code. */ 690 extern long bfd_get_elf_phdr_upper_bound 691 (bfd *abfd); 692 693 /* Copy ABFD's program header table entries to *PHDRS. The entries 694 will be stored as an array of Elf_Internal_Phdr structures, as 695 defined in include/elf/internal.h. To find out how large the 696 buffer needs to be, call bfd_get_elf_phdr_upper_bound. 697 698 Return the number of program header table entries read, or -1 if an 699 error occurs; bfd_get_error will return an appropriate code. */ 700 extern int bfd_get_elf_phdrs 701 (bfd *abfd, void *phdrs); 702 703 /* Create a new BFD as if by bfd_openr. Rather than opening a file, 704 reconstruct an ELF file by reading the segments out of remote 705 memory based on the ELF file header at EHDR_VMA and the ELF program 706 headers it points to. If non-zero, SIZE is the known extent of the 707 object. If not null, *LOADBASEP is filled in with the difference 708 between the VMAs from which the segments were read, and the VMAs 709 the file headers (and hence BFD's idea of each section's VMA) put 710 them at. 711 712 The function TARGET_READ_MEMORY is called to copy LEN bytes from 713 the remote memory at target address VMA into the local buffer at 714 MYADDR; it should return zero on success or an `errno' code on 715 failure. TEMPL must be a BFD for a target with the word size and 716 byte order found in the remote memory. */ 717 extern bfd *bfd_elf_bfd_from_remote_memory 718 (bfd *templ, bfd_vma ehdr_vma, bfd_size_type size, bfd_vma *loadbasep, 719 int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr, 720 bfd_size_type len)); 721 722 extern struct bfd_section *_bfd_elf_tls_setup 723 (bfd *, struct bfd_link_info *); 724 725 extern struct bfd_section * 726 _bfd_nearby_section (bfd *, struct bfd_section *, bfd_vma); 727 728 extern void _bfd_fix_excluded_sec_syms 729 (bfd *, struct bfd_link_info *); 730 731 extern unsigned bfd_m68k_mach_to_features (int); 732 733 extern int bfd_m68k_features_to_mach (unsigned); 734 735 extern bfd_boolean bfd_m68k_elf32_create_embedded_relocs 736 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 737 char **); 738 739 extern void bfd_elf_m68k_set_target_options (struct bfd_link_info *, int); 740 741 extern bfd_boolean bfd_bfin_elf32_create_embedded_relocs 742 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 743 char **); 744 745 extern bfd_boolean bfd_cr16_elf32_create_embedded_relocs 746 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 747 char **); 748 749 /* SunOS shared library support routines for the linker. */ 750 751 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list 752 (bfd *, struct bfd_link_info *); 753 extern bfd_boolean bfd_sunos_record_link_assignment 754 (bfd *, struct bfd_link_info *, const char *); 755 extern bfd_boolean bfd_sunos_size_dynamic_sections 756 (bfd *, struct bfd_link_info *, struct bfd_section **, 757 struct bfd_section **, struct bfd_section **); 758 759 /* Linux shared library support routines for the linker. */ 760 761 extern bfd_boolean bfd_i386linux_size_dynamic_sections 762 (bfd *, struct bfd_link_info *); 763 extern bfd_boolean bfd_m68klinux_size_dynamic_sections 764 (bfd *, struct bfd_link_info *); 765 extern bfd_boolean bfd_sparclinux_size_dynamic_sections 766 (bfd *, struct bfd_link_info *); 767 768 /* mmap hacks */ 769 770 struct _bfd_window_internal; 771 typedef struct _bfd_window_internal bfd_window_internal; 772 773 typedef struct _bfd_window 774 { 775 /* What the user asked for. */ 776 void *data; 777 bfd_size_type size; 778 /* The actual window used by BFD. Small user-requested read-only 779 regions sharing a page may share a single window into the object 780 file. Read-write versions shouldn't until I've fixed things to 781 keep track of which portions have been claimed by the 782 application; don't want to give the same region back when the 783 application wants two writable copies! */ 784 struct _bfd_window_internal *i; 785 } 786 bfd_window; 787 788 extern void bfd_init_window 789 (bfd_window *); 790 extern void bfd_free_window 791 (bfd_window *); 792 extern bfd_boolean bfd_get_file_window 793 (bfd *, file_ptr, bfd_size_type, bfd_window *, bfd_boolean); 794 795 /* XCOFF support routines for the linker. */ 796 797 extern bfd_boolean bfd_xcoff_split_import_path 798 (bfd *, const char *, const char **, const char **); 799 extern bfd_boolean bfd_xcoff_set_archive_import_path 800 (struct bfd_link_info *, bfd *, const char *); 801 extern bfd_boolean bfd_xcoff_link_record_set 802 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_size_type); 803 extern bfd_boolean bfd_xcoff_import_symbol 804 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_vma, 805 const char *, const char *, const char *, unsigned int); 806 extern bfd_boolean bfd_xcoff_export_symbol 807 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *); 808 extern bfd_boolean bfd_xcoff_link_count_reloc 809 (bfd *, struct bfd_link_info *, const char *); 810 extern bfd_boolean bfd_xcoff_record_link_assignment 811 (bfd *, struct bfd_link_info *, const char *); 812 extern bfd_boolean bfd_xcoff_size_dynamic_sections 813 (bfd *, struct bfd_link_info *, const char *, const char *, 814 unsigned long, unsigned long, unsigned long, bfd_boolean, 815 int, bfd_boolean, unsigned int, struct bfd_section **, bfd_boolean); 816 extern bfd_boolean bfd_xcoff_link_generate_rtinit 817 (bfd *, const char *, const char *, bfd_boolean); 818 819 /* XCOFF support routines for ar. */ 820 extern bfd_boolean bfd_xcoff_ar_archive_set_magic 821 (bfd *, char *); 822 823 /* Externally visible COFF routines. */ 824 825 #if defined(__STDC__) || defined(ALMOST_STDC) 826 struct internal_syment; 827 union internal_auxent; 828 #endif 829 830 extern bfd_boolean bfd_coff_set_symbol_class 831 (bfd *, struct bfd_symbol *, unsigned int); 832 833 extern bfd_boolean bfd_m68k_coff_create_embedded_relocs 834 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, char **); 835 836 /* ARM VFP11 erratum workaround support. */ 837 typedef enum 838 { 839 BFD_ARM_VFP11_FIX_DEFAULT, 840 BFD_ARM_VFP11_FIX_NONE, 841 BFD_ARM_VFP11_FIX_SCALAR, 842 BFD_ARM_VFP11_FIX_VECTOR 843 } bfd_arm_vfp11_fix; 844 845 extern void bfd_elf32_arm_init_maps 846 (bfd *); 847 848 extern void bfd_elf32_arm_set_vfp11_fix 849 (bfd *, struct bfd_link_info *); 850 851 extern void bfd_elf32_arm_set_cortex_a8_fix 852 (bfd *, struct bfd_link_info *); 853 854 extern bfd_boolean bfd_elf32_arm_vfp11_erratum_scan 855 (bfd *, struct bfd_link_info *); 856 857 extern void bfd_elf32_arm_vfp11_fix_veneer_locations 858 (bfd *, struct bfd_link_info *); 859 860 /* ARM STM STM32L4XX erratum workaround support. */ 861 typedef enum 862 { 863 BFD_ARM_STM32L4XX_FIX_NONE, 864 BFD_ARM_STM32L4XX_FIX_DEFAULT, 865 BFD_ARM_STM32L4XX_FIX_ALL 866 } bfd_arm_stm32l4xx_fix; 867 868 extern void bfd_elf32_arm_set_stm32l4xx_fix 869 (bfd *, struct bfd_link_info *); 870 871 extern bfd_boolean bfd_elf32_arm_stm32l4xx_erratum_scan 872 (bfd *, struct bfd_link_info *); 873 874 extern void bfd_elf32_arm_stm32l4xx_fix_veneer_locations 875 (bfd *, struct bfd_link_info *); 876 877 /* ARM Interworking support. Called from linker. */ 878 extern bfd_boolean bfd_arm_allocate_interworking_sections 879 (struct bfd_link_info *); 880 881 extern bfd_boolean bfd_arm_process_before_allocation 882 (bfd *, struct bfd_link_info *, int); 883 884 extern bfd_boolean bfd_arm_get_bfd_for_interworking 885 (bfd *, struct bfd_link_info *); 886 887 /* PE ARM Interworking support. Called from linker. */ 888 extern bfd_boolean bfd_arm_pe_allocate_interworking_sections 889 (struct bfd_link_info *); 890 891 extern bfd_boolean bfd_arm_pe_process_before_allocation 892 (bfd *, struct bfd_link_info *, int); 893 894 extern bfd_boolean bfd_arm_pe_get_bfd_for_interworking 895 (bfd *, struct bfd_link_info *); 896 897 /* ELF ARM Interworking support. Called from linker. */ 898 extern bfd_boolean bfd_elf32_arm_allocate_interworking_sections 899 (struct bfd_link_info *); 900 901 extern bfd_boolean bfd_elf32_arm_process_before_allocation 902 (bfd *, struct bfd_link_info *); 903 904 struct elf32_arm_params { 905 char *thumb_entry_symbol; 906 int byteswap_code; 907 int target1_is_rel; 908 char * target2_type; 909 int fix_v4bx; 910 int use_blx; 911 bfd_arm_vfp11_fix vfp11_denorm_fix; 912 bfd_arm_stm32l4xx_fix stm32l4xx_fix; 913 int no_enum_size_warning; 914 int no_wchar_size_warning; 915 int pic_veneer; 916 int fix_cortex_a8; 917 int fix_arm1176; 918 int merge_exidx_entries; 919 int cmse_implib; 920 bfd *in_implib_bfd; 921 }; 922 923 void bfd_elf32_arm_set_target_params 924 (bfd *, struct bfd_link_info *, struct elf32_arm_params *); 925 926 extern bfd_boolean bfd_elf32_arm_get_bfd_for_interworking 927 (bfd *, struct bfd_link_info *); 928 929 extern bfd_boolean bfd_elf32_arm_add_glue_sections_to_bfd 930 (bfd *, struct bfd_link_info *); 931 932 extern void bfd_elf32_arm_keep_private_stub_output_sections 933 (struct bfd_link_info *); 934 935 /* ELF ARM mapping symbol support. */ 936 #define BFD_ARM_SPECIAL_SYM_TYPE_MAP (1 << 0) 937 #define BFD_ARM_SPECIAL_SYM_TYPE_TAG (1 << 1) 938 #define BFD_ARM_SPECIAL_SYM_TYPE_OTHER (1 << 2) 939 #define BFD_ARM_SPECIAL_SYM_TYPE_ANY (~0) 940 941 extern bfd_boolean bfd_is_arm_special_symbol_name 942 (const char *, int); 943 944 extern void bfd_elf32_arm_set_byteswap_code 945 (struct bfd_link_info *, int); 946 947 extern void bfd_elf32_arm_use_long_plt (void); 948 949 /* ARM Note section processing. */ 950 extern bfd_boolean bfd_arm_merge_machines 951 (bfd *, bfd *); 952 953 extern bfd_boolean bfd_arm_update_notes 954 (bfd *, const char *); 955 956 extern unsigned int bfd_arm_get_mach_from_notes 957 (bfd *, const char *); 958 959 /* ARM stub generation support. Called from the linker. */ 960 extern int elf32_arm_setup_section_lists 961 (bfd *, struct bfd_link_info *); 962 extern void elf32_arm_next_input_section 963 (struct bfd_link_info *, struct bfd_section *); 964 extern bfd_boolean elf32_arm_size_stubs 965 (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, 966 struct bfd_section * (*) (const char *, struct bfd_section *, 967 struct bfd_section *, unsigned int), 968 void (*) (void)); 969 extern bfd_boolean elf32_arm_build_stubs 970 (struct bfd_link_info *); 971 972 /* ARM unwind section editing support. */ 973 extern bfd_boolean elf32_arm_fix_exidx_coverage 974 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean); 975 976 /* C6x unwind section editing support. */ 977 extern bfd_boolean elf32_tic6x_fix_exidx_coverage 978 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean); 979 980 extern void bfd_elf64_aarch64_init_maps 981 (bfd *); 982 983 extern void bfd_elf32_aarch64_init_maps 984 (bfd *); 985 986 extern void bfd_elf64_aarch64_set_options 987 (bfd *, struct bfd_link_info *, int, int, int, int, int, int); 988 989 extern void bfd_elf32_aarch64_set_options 990 (bfd *, struct bfd_link_info *, int, int, int, int, int, int); 991 992 /* ELF AArch64 mapping symbol support. */ 993 #define BFD_AARCH64_SPECIAL_SYM_TYPE_MAP (1 << 0) 994 #define BFD_AARCH64_SPECIAL_SYM_TYPE_TAG (1 << 1) 995 #define BFD_AARCH64_SPECIAL_SYM_TYPE_OTHER (1 << 2) 996 #define BFD_AARCH64_SPECIAL_SYM_TYPE_ANY (~0) 997 extern bfd_boolean bfd_is_aarch64_special_symbol_name 998 (const char * name, int type); 999 1000 /* AArch64 stub generation support for ELF64. Called from the linker. */ 1001 extern int elf64_aarch64_setup_section_lists 1002 (bfd *, struct bfd_link_info *); 1003 extern void elf64_aarch64_next_input_section 1004 (struct bfd_link_info *, struct bfd_section *); 1005 extern bfd_boolean elf64_aarch64_size_stubs 1006 (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, 1007 struct bfd_section * (*) (const char *, struct bfd_section *), 1008 void (*) (void)); 1009 extern bfd_boolean elf64_aarch64_build_stubs 1010 (struct bfd_link_info *); 1011 /* AArch64 stub generation support for ELF32. Called from the linker. */ 1012 extern int elf32_aarch64_setup_section_lists 1013 (bfd *, struct bfd_link_info *); 1014 extern void elf32_aarch64_next_input_section 1015 (struct bfd_link_info *, struct bfd_section *); 1016 extern bfd_boolean elf32_aarch64_size_stubs 1017 (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, 1018 struct bfd_section * (*) (const char *, struct bfd_section *), 1019 void (*) (void)); 1020 extern bfd_boolean elf32_aarch64_build_stubs 1021 (struct bfd_link_info *); 1022 1023 1024 /* TI COFF load page support. */ 1025 extern void bfd_ticoff_set_section_load_page 1026 (struct bfd_section *, int); 1027 1028 extern int bfd_ticoff_get_section_load_page 1029 (struct bfd_section *); 1030 1031 /* H8/300 functions. */ 1032 extern bfd_vma bfd_h8300_pad_address 1033 (bfd *, bfd_vma); 1034 1035 /* IA64 Itanium code generation. Called from linker. */ 1036 extern void bfd_elf32_ia64_after_parse 1037 (int); 1038 1039 extern void bfd_elf64_ia64_after_parse 1040 (int); 1041 1042 /* V850 Note manipulation routines. */ 1043 extern bfd_boolean v850_elf_create_sections 1044 (struct bfd_link_info *); 1045 1046 extern bfd_boolean v850_elf_set_note 1047 (bfd *, unsigned int, unsigned int); 1048 1049 /* MIPS ABI flags data access. For the disassembler. */ 1050 struct elf_internal_abiflags_v0; 1051 extern struct elf_internal_abiflags_v0 *bfd_mips_elf_get_abiflags (bfd *); 1052