1 /* Main header file for the bfd library -- portable access to object files. 2 3 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 4 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 5 2012 Free Software Foundation, Inc. 6 7 Contributed by Cygnus Support. 8 9 This file is part of BFD, the Binary File Descriptor library. 10 11 This program is free software; you can redistribute it and/or modify 12 it under the terms of the GNU General Public License as published by 13 the Free Software Foundation; either version 3 of the License, or 14 (at your option) any later version. 15 16 This program is distributed in the hope that it will be useful, 17 but WITHOUT ANY WARRANTY; without even the implied warranty of 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 GNU General Public License for more details. 20 21 You should have received a copy of the GNU General Public License 22 along with this program; if not, write to the Free Software 23 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 24 25 #ifndef __BFD_H_SEEN__ 26 #define __BFD_H_SEEN__ 27 28 /* PR 14072: Ensure that config.h is included first. */ 29 #if !defined PACKAGE && !defined PACKAGE_VERSION 30 #error config.h must be included before this header 31 #endif 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 #include "ansidecl.h" 38 #include "symcat.h" 39 #include <sys/stat.h> 40 41 #if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE) 42 #ifndef SABER 43 /* This hack is to avoid a problem with some strict ANSI C preprocessors. 44 The problem is, "32_" is not a valid preprocessing token, and we don't 45 want extra underscores (e.g., "nlm_32_"). The XCONCAT2 macro will 46 cause the inner CONCAT2 macros to be evaluated first, producing 47 still-valid pp-tokens. Then the final concatenation can be done. */ 48 #undef CONCAT4 49 #define CONCAT4(a,b,c,d) XCONCAT2(CONCAT2(a,b),CONCAT2(c,d)) 50 #endif 51 #endif 52 53 /* This is a utility macro to handle the situation where the code 54 wants to place a constant string into the code, followed by a 55 comma and then the length of the string. Doing this by hand 56 is error prone, so using this macro is safer. */ 57 #define STRING_COMMA_LEN(STR) (STR), (sizeof (STR) - 1) 58 /* Unfortunately it is not possible to use the STRING_COMMA_LEN macro 59 to create the arguments to another macro, since the preprocessor 60 will mis-count the number of arguments to the outer macro (by not 61 evaluating STRING_COMMA_LEN and so missing the comma). This is a 62 problem for example when trying to use STRING_COMMA_LEN to build 63 the arguments to the strncmp() macro. Hence this alternative 64 definition of strncmp is provided here. 65 66 Note - these macros do NOT work if STR2 is not a constant string. */ 67 #define CONST_STRNEQ(STR1,STR2) (strncmp ((STR1), (STR2), sizeof (STR2) - 1) == 0) 68 /* strcpy() can have a similar problem, but since we know we are 69 copying a constant string, we can use memcpy which will be faster 70 since there is no need to check for a NUL byte inside STR. We 71 can also save time if we do not need to copy the terminating NUL. */ 72 #define LITMEMCPY(DEST,STR2) memcpy ((DEST), (STR2), sizeof (STR2) - 1) 73 #define LITSTRCPY(DEST,STR2) memcpy ((DEST), (STR2), sizeof (STR2)) 74 75 76 #define BFD_SUPPORTS_PLUGINS @supports_plugins@ 77 78 /* The word size used by BFD on the host. This may be 64 with a 32 79 bit target if the host is 64 bit, or if other 64 bit targets have 80 been selected with --enable-targets, or if --enable-64-bit-bfd. */ 81 #define BFD_ARCH_SIZE @wordsize@ 82 83 /* The word size of the default bfd target. */ 84 #define BFD_DEFAULT_TARGET_SIZE @bfd_default_target_size@ 85 86 #define BFD_HOST_64BIT_LONG @BFD_HOST_64BIT_LONG@ 87 #define BFD_HOST_64BIT_LONG_LONG @BFD_HOST_64BIT_LONG_LONG@ 88 #if @BFD_HOST_64_BIT_DEFINED@ 89 #define BFD_HOST_64_BIT @BFD_HOST_64_BIT@ 90 #define BFD_HOST_U_64_BIT @BFD_HOST_U_64_BIT@ 91 typedef BFD_HOST_64_BIT bfd_int64_t; 92 typedef BFD_HOST_U_64_BIT bfd_uint64_t; 93 #endif 94 95 #if BFD_ARCH_SIZE >= 64 96 #define BFD64 97 #endif 98 99 #ifndef INLINE 100 #if __GNUC__ >= 2 101 #define INLINE __inline__ 102 #else 103 #define INLINE 104 #endif 105 #endif 106 107 /* Declaring a type wide enough to hold a host long and a host pointer. */ 108 #define BFD_HOSTPTR_T @BFD_HOSTPTR_T@ 109 typedef BFD_HOSTPTR_T bfd_hostptr_t; 110 111 /* Forward declaration. */ 112 typedef struct bfd bfd; 113 114 /* Boolean type used in bfd. Too many systems define their own 115 versions of "boolean" for us to safely typedef a "boolean" of 116 our own. Using an enum for "bfd_boolean" has its own set of 117 problems, with strange looking casts required to avoid warnings 118 on some older compilers. Thus we just use an int. 119 120 General rule: Functions which are bfd_boolean return TRUE on 121 success and FALSE on failure (unless they're a predicate). */ 122 123 typedef int bfd_boolean; 124 #undef FALSE 125 #undef TRUE 126 #define FALSE 0 127 #define TRUE 1 128 129 #ifdef BFD64 130 131 #ifndef BFD_HOST_64_BIT 132 #error No 64 bit integer type available 133 #endif /* ! defined (BFD_HOST_64_BIT) */ 134 135 typedef BFD_HOST_U_64_BIT bfd_vma; 136 typedef BFD_HOST_64_BIT bfd_signed_vma; 137 typedef BFD_HOST_U_64_BIT bfd_size_type; 138 typedef BFD_HOST_U_64_BIT symvalue; 139 140 #if BFD_HOST_64BIT_LONG 141 #define BFD_VMA_FMT "l" 142 #elif defined (__MSVCRT__) 143 #define BFD_VMA_FMT "I64" 144 #else 145 #define BFD_VMA_FMT "ll" 146 #endif 147 148 #ifndef fprintf_vma 149 #define sprintf_vma(s,x) sprintf (s, "%016" BFD_VMA_FMT "x", x) 150 #define fprintf_vma(f,x) fprintf (f, "%016" BFD_VMA_FMT "x", x) 151 #endif 152 153 #else /* not BFD64 */ 154 155 /* Represent a target address. Also used as a generic unsigned type 156 which is guaranteed to be big enough to hold any arithmetic types 157 we need to deal with. */ 158 typedef unsigned long bfd_vma; 159 160 /* A generic signed type which is guaranteed to be big enough to hold any 161 arithmetic types we need to deal with. Can be assumed to be compatible 162 with bfd_vma in the same way that signed and unsigned ints are compatible 163 (as parameters, in assignment, etc). */ 164 typedef long bfd_signed_vma; 165 166 typedef unsigned long symvalue; 167 typedef unsigned long bfd_size_type; 168 169 /* Print a bfd_vma x on stream s. */ 170 #define BFD_VMA_FMT "l" 171 #define fprintf_vma(s,x) fprintf (s, "%08" BFD_VMA_FMT "x", x) 172 #define sprintf_vma(s,x) sprintf (s, "%08" BFD_VMA_FMT "x", x) 173 174 #endif /* not BFD64 */ 175 176 #define HALF_BFD_SIZE_TYPE \ 177 (((bfd_size_type) 1) << (8 * sizeof (bfd_size_type) / 2)) 178 179 #ifndef BFD_HOST_64_BIT 180 /* Fall back on a 32 bit type. The idea is to make these types always 181 available for function return types, but in the case that 182 BFD_HOST_64_BIT is undefined such a function should abort or 183 otherwise signal an error. */ 184 typedef bfd_signed_vma bfd_int64_t; 185 typedef bfd_vma bfd_uint64_t; 186 #endif 187 188 /* An offset into a file. BFD always uses the largest possible offset 189 based on the build time availability of fseek, fseeko, or fseeko64. */ 190 typedef @bfd_file_ptr@ file_ptr; 191 typedef unsigned @bfd_file_ptr@ ufile_ptr; 192 193 extern void bfd_sprintf_vma (bfd *, char *, bfd_vma); 194 extern void bfd_fprintf_vma (bfd *, void *, bfd_vma); 195 196 #define printf_vma(x) fprintf_vma(stdout,x) 197 #define bfd_printf_vma(abfd,x) bfd_fprintf_vma (abfd,stdout,x) 198 199 typedef unsigned int flagword; /* 32 bits of flags */ 200 typedef unsigned char bfd_byte; 201 202 /* File formats. */ 203 204 typedef enum bfd_format 205 { 206 bfd_unknown = 0, /* File format is unknown. */ 207 bfd_object, /* Linker/assembler/compiler output. */ 208 bfd_archive, /* Object archive file. */ 209 bfd_core, /* Core dump. */ 210 bfd_type_end /* Marks the end; don't use it! */ 211 } 212 bfd_format; 213 214 /* 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. */ 263 typedef struct lineno_cache_entry 264 { 265 unsigned int line_number; /* Linenumber from start of function. */ 266 union 267 { 268 struct bfd_symbol *sym; /* Function name. */ 269 bfd_vma offset; /* Offset into section. */ 270 } u; 271 } 272 alent; 273 274 /* Object and core file sections. */ 275 276 #define align_power(addr, align) \ 277 (((addr) + ((bfd_vma) 1 << (align)) - 1) & ((bfd_vma) -1 << (align))) 278 279 typedef struct bfd_section *sec_ptr; 280 281 #define bfd_get_section_name(bfd, ptr) ((void) bfd, (ptr)->name) 282 #define bfd_get_section_vma(bfd, ptr) ((void) bfd, (ptr)->vma) 283 #define bfd_get_section_lma(bfd, ptr) ((void) bfd, (ptr)->lma) 284 #define bfd_get_section_alignment(bfd, ptr) ((void) bfd, \ 285 (ptr)->alignment_power) 286 #define bfd_section_name(bfd, ptr) ((ptr)->name) 287 #define bfd_section_size(bfd, ptr) ((ptr)->size) 288 #define bfd_get_section_size(ptr) ((ptr)->size) 289 #define bfd_section_vma(bfd, ptr) ((ptr)->vma) 290 #define bfd_section_lma(bfd, ptr) ((ptr)->lma) 291 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power) 292 #define bfd_get_section_flags(bfd, ptr) ((void) bfd, (ptr)->flags) 293 #define bfd_get_section_userdata(bfd, ptr) ((void) bfd, (ptr)->userdata) 294 295 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0) 296 297 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma = (val)), ((ptr)->user_set_vma = TRUE), TRUE) 298 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),TRUE) 299 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),TRUE) 300 /* Find the address one past the end of SEC. */ 301 #define bfd_get_section_limit(bfd, sec) \ 302 (((bfd)->direction != write_direction && (sec)->rawsize != 0 \ 303 ? (sec)->rawsize : (sec)->size) / bfd_octets_per_byte (bfd)) 304 305 /* Return TRUE if input section SEC has been discarded. */ 306 #define discarded_section(sec) \ 307 (!bfd_is_abs_section (sec) \ 308 && bfd_is_abs_section ((sec)->output_section) \ 309 && (sec)->sec_info_type != SEC_INFO_TYPE_MERGE \ 310 && (sec)->sec_info_type != SEC_INFO_TYPE_JUST_SYMS) 311 312 typedef enum bfd_print_symbol 313 { 314 bfd_print_symbol_name, 315 bfd_print_symbol_more, 316 bfd_print_symbol_all 317 } bfd_print_symbol_type; 318 319 /* Information about a symbol that nm needs. */ 320 321 typedef struct _symbol_info 322 { 323 symvalue value; 324 char type; 325 const char *name; /* Symbol name. */ 326 unsigned char stab_type; /* Stab type. */ 327 char stab_other; /* Stab other. */ 328 short stab_desc; /* Stab desc. */ 329 const char *stab_name; /* String for stab type. */ 330 } symbol_info; 331 332 /* Get the name of a stabs type code. */ 333 334 extern const char *bfd_get_stab_name (int); 335 336 /* Hash table routines. There is no way to free up a hash table. */ 337 338 /* An element in the hash table. Most uses will actually use a larger 339 structure, and an instance of this will be the first field. */ 340 341 struct bfd_hash_entry 342 { 343 /* Next entry for this hash code. */ 344 struct bfd_hash_entry *next; 345 /* String being hashed. */ 346 const char *string; 347 /* Hash code. This is the full hash code, not the index into the 348 table. */ 349 unsigned long hash; 350 }; 351 352 /* A hash table. */ 353 354 struct bfd_hash_table 355 { 356 /* The hash array. */ 357 struct bfd_hash_entry **table; 358 /* A function used to create new elements in the hash table. The 359 first entry is itself a pointer to an element. When this 360 function is first invoked, this pointer will be NULL. However, 361 having the pointer permits a hierarchy of method functions to be 362 built each of which calls the function in the superclass. Thus 363 each function should be written to allocate a new block of memory 364 only if the argument is NULL. */ 365 struct bfd_hash_entry *(*newfunc) 366 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 367 /* An objalloc for this hash table. This is a struct objalloc *, 368 but we use void * to avoid requiring the inclusion of objalloc.h. */ 369 void *memory; 370 /* The number of slots in the hash table. */ 371 unsigned int size; 372 /* The number of entries in the hash table. */ 373 unsigned int count; 374 /* The size of elements. */ 375 unsigned int entsize; 376 /* If non-zero, don't grow the hash table. */ 377 unsigned int frozen:1; 378 }; 379 380 /* Initialize a hash table. */ 381 extern bfd_boolean bfd_hash_table_init 382 (struct bfd_hash_table *, 383 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 384 struct bfd_hash_table *, 385 const char *), 386 unsigned int); 387 388 /* Initialize a hash table specifying a size. */ 389 extern bfd_boolean bfd_hash_table_init_n 390 (struct bfd_hash_table *, 391 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 392 struct bfd_hash_table *, 393 const char *), 394 unsigned int, unsigned int); 395 396 /* Free up a hash table. */ 397 extern void bfd_hash_table_free 398 (struct bfd_hash_table *); 399 400 /* Look up a string in a hash table. If CREATE is TRUE, a new entry 401 will be created for this string if one does not already exist. The 402 COPY argument must be TRUE if this routine should copy the string 403 into newly allocated memory when adding an entry. */ 404 extern struct bfd_hash_entry *bfd_hash_lookup 405 (struct bfd_hash_table *, const char *, bfd_boolean create, 406 bfd_boolean copy); 407 408 /* Insert an entry in a hash table. */ 409 extern struct bfd_hash_entry *bfd_hash_insert 410 (struct bfd_hash_table *, const char *, unsigned long); 411 412 /* Rename an entry in a hash table. */ 413 extern void bfd_hash_rename 414 (struct bfd_hash_table *, const char *, struct bfd_hash_entry *); 415 416 /* Replace an entry in a hash table. */ 417 extern void bfd_hash_replace 418 (struct bfd_hash_table *, struct bfd_hash_entry *old, 419 struct bfd_hash_entry *nw); 420 421 /* Base method for creating a hash table entry. */ 422 extern struct bfd_hash_entry *bfd_hash_newfunc 423 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 424 425 /* Grab some space for a hash table entry. */ 426 extern void *bfd_hash_allocate 427 (struct bfd_hash_table *, unsigned int); 428 429 /* Traverse a hash table in a random order, calling a function on each 430 element. If the function returns FALSE, the traversal stops. The 431 INFO argument is passed to the function. */ 432 extern void bfd_hash_traverse 433 (struct bfd_hash_table *, 434 bfd_boolean (*) (struct bfd_hash_entry *, void *), 435 void *info); 436 437 /* Allows the default size of a hash table to be configured. New hash 438 tables allocated using bfd_hash_table_init will be created with 439 this size. */ 440 extern unsigned long bfd_hash_set_default_size (unsigned long); 441 442 /* This structure is used to keep track of stabs in sections 443 information while linking. */ 444 445 struct stab_info 446 { 447 /* A hash table used to hold stabs strings. */ 448 struct bfd_strtab_hash *strings; 449 /* The header file hash table. */ 450 struct bfd_hash_table includes; 451 /* The first .stabstr section. */ 452 struct bfd_section *stabstr; 453 }; 454 455 #define COFF_SWAP_TABLE (void *) &bfd_coff_std_swap_table 456 457 /* User program access to BFD facilities. */ 458 459 /* Direct I/O routines, for programs which know more about the object 460 file than BFD does. Use higher level routines if possible. */ 461 462 extern bfd_size_type bfd_bread (void *, bfd_size_type, bfd *); 463 extern bfd_size_type bfd_bwrite (const void *, bfd_size_type, bfd *); 464 extern int bfd_seek (bfd *, file_ptr, int); 465 extern file_ptr bfd_tell (bfd *); 466 extern int bfd_flush (bfd *); 467 extern int bfd_stat (bfd *, struct stat *); 468 469 /* Deprecated old routines. */ 470 #if __GNUC__ 471 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD) \ 472 (warn_deprecated ("bfd_read", __FILE__, __LINE__, __FUNCTION__), \ 473 bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 474 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD) \ 475 (warn_deprecated ("bfd_write", __FILE__, __LINE__, __FUNCTION__), \ 476 bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 477 #else 478 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD) \ 479 (warn_deprecated ("bfd_read", (const char *) 0, 0, (const char *) 0), \ 480 bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 481 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD) \ 482 (warn_deprecated ("bfd_write", (const char *) 0, 0, (const char *) 0),\ 483 bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 484 #endif 485 extern void warn_deprecated (const char *, const char *, int, const char *); 486 487 /* Cast from const char * to char * so that caller can assign to 488 a char * without a warning. */ 489 #define bfd_get_filename(abfd) ((char *) (abfd)->filename) 490 #define bfd_get_cacheable(abfd) ((abfd)->cacheable) 491 #define bfd_get_format(abfd) ((abfd)->format) 492 #define bfd_get_target(abfd) ((abfd)->xvec->name) 493 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour) 494 #define bfd_family_coff(abfd) \ 495 (bfd_get_flavour (abfd) == bfd_target_coff_flavour || \ 496 bfd_get_flavour (abfd) == bfd_target_xcoff_flavour) 497 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG) 498 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE) 499 #define bfd_header_big_endian(abfd) \ 500 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG) 501 #define bfd_header_little_endian(abfd) \ 502 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE) 503 #define bfd_get_file_flags(abfd) ((abfd)->flags) 504 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags) 505 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags) 506 #define bfd_my_archive(abfd) ((abfd)->my_archive) 507 #define bfd_has_map(abfd) ((abfd)->has_armap) 508 #define bfd_is_thin_archive(abfd) ((abfd)->is_thin_archive) 509 510 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types) 511 #define bfd_usrdata(abfd) ((abfd)->usrdata) 512 513 #define bfd_get_start_address(abfd) ((abfd)->start_address) 514 #define bfd_get_symcount(abfd) ((abfd)->symcount) 515 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols) 516 #define bfd_count_sections(abfd) ((abfd)->section_count) 517 518 #define bfd_get_dynamic_symcount(abfd) ((abfd)->dynsymcount) 519 520 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char) 521 522 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = bool), TRUE) 523 524 extern bfd_boolean bfd_cache_close 525 (bfd *abfd); 526 /* NB: This declaration should match the autogenerated one in libbfd.h. */ 527 528 extern bfd_boolean bfd_cache_close_all (void); 529 530 extern bfd_boolean bfd_record_phdr 531 (bfd *, unsigned long, bfd_boolean, flagword, bfd_boolean, bfd_vma, 532 bfd_boolean, bfd_boolean, unsigned int, struct bfd_section **); 533 534 /* Byte swapping routines. */ 535 536 bfd_uint64_t bfd_getb64 (const void *); 537 bfd_uint64_t bfd_getl64 (const void *); 538 bfd_int64_t bfd_getb_signed_64 (const void *); 539 bfd_int64_t bfd_getl_signed_64 (const void *); 540 bfd_vma bfd_getb32 (const void *); 541 bfd_vma bfd_getl32 (const void *); 542 bfd_signed_vma bfd_getb_signed_32 (const void *); 543 bfd_signed_vma bfd_getl_signed_32 (const void *); 544 bfd_vma bfd_getb16 (const void *); 545 bfd_vma bfd_getl16 (const void *); 546 bfd_signed_vma bfd_getb_signed_16 (const void *); 547 bfd_signed_vma bfd_getl_signed_16 (const void *); 548 void bfd_putb64 (bfd_uint64_t, void *); 549 void bfd_putl64 (bfd_uint64_t, void *); 550 void bfd_putb32 (bfd_vma, void *); 551 void bfd_putl32 (bfd_vma, void *); 552 void bfd_putb16 (bfd_vma, void *); 553 void bfd_putl16 (bfd_vma, void *); 554 555 /* Byte swapping routines which take size and endiannes as arguments. */ 556 557 bfd_uint64_t bfd_get_bits (const void *, int, bfd_boolean); 558 void bfd_put_bits (bfd_uint64_t, void *, int, bfd_boolean); 559 560 #if defined(__STDC__) || defined(ALMOST_STDC) 561 struct ecoff_debug_info; 562 struct ecoff_debug_swap; 563 struct ecoff_extr; 564 struct bfd_symbol; 565 struct bfd_link_info; 566 struct bfd_link_hash_entry; 567 struct bfd_section_already_linked; 568 struct bfd_elf_version_tree; 569 #endif 570 571 extern bfd_boolean bfd_section_already_linked_table_init (void); 572 extern void bfd_section_already_linked_table_free (void); 573 extern bfd_boolean _bfd_handle_already_linked 574 (struct bfd_section *, struct bfd_section_already_linked *, 575 struct bfd_link_info *); 576 577 /* Externally visible ECOFF routines. */ 578 579 extern bfd_vma bfd_ecoff_get_gp_value 580 (bfd * abfd); 581 extern bfd_boolean bfd_ecoff_set_gp_value 582 (bfd *abfd, bfd_vma gp_value); 583 extern bfd_boolean bfd_ecoff_set_regmasks 584 (bfd *abfd, unsigned long gprmask, unsigned long fprmask, 585 unsigned long *cprmask); 586 extern void *bfd_ecoff_debug_init 587 (bfd *output_bfd, struct ecoff_debug_info *output_debug, 588 const struct ecoff_debug_swap *output_swap, struct bfd_link_info *); 589 extern void bfd_ecoff_debug_free 590 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 591 const struct ecoff_debug_swap *output_swap, struct bfd_link_info *); 592 extern bfd_boolean bfd_ecoff_debug_accumulate 593 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 594 const struct ecoff_debug_swap *output_swap, bfd *input_bfd, 595 struct ecoff_debug_info *input_debug, 596 const struct ecoff_debug_swap *input_swap, struct bfd_link_info *); 597 extern bfd_boolean bfd_ecoff_debug_accumulate_other 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 bfd_link_info *); 601 extern bfd_boolean bfd_ecoff_debug_externals 602 (bfd *abfd, struct ecoff_debug_info *debug, 603 const struct ecoff_debug_swap *swap, bfd_boolean relocatable, 604 bfd_boolean (*get_extr) (struct bfd_symbol *, struct ecoff_extr *), 605 void (*set_index) (struct bfd_symbol *, bfd_size_type)); 606 extern bfd_boolean bfd_ecoff_debug_one_external 607 (bfd *abfd, struct ecoff_debug_info *debug, 608 const struct ecoff_debug_swap *swap, const char *name, 609 struct ecoff_extr *esym); 610 extern bfd_size_type bfd_ecoff_debug_size 611 (bfd *abfd, struct ecoff_debug_info *debug, 612 const struct ecoff_debug_swap *swap); 613 extern bfd_boolean bfd_ecoff_write_debug 614 (bfd *abfd, struct ecoff_debug_info *debug, 615 const struct ecoff_debug_swap *swap, file_ptr where); 616 extern bfd_boolean bfd_ecoff_write_accumulated_debug 617 (void *handle, bfd *abfd, struct ecoff_debug_info *debug, 618 const struct ecoff_debug_swap *swap, 619 struct bfd_link_info *info, file_ptr where); 620 621 /* Externally visible ELF routines. */ 622 623 struct bfd_link_needed_list 624 { 625 struct bfd_link_needed_list *next; 626 bfd *by; 627 const char *name; 628 }; 629 630 enum dynamic_lib_link_class { 631 DYN_NORMAL = 0, 632 DYN_AS_NEEDED = 1, 633 DYN_DT_NEEDED = 2, 634 DYN_NO_ADD_NEEDED = 4, 635 DYN_NO_NEEDED = 8 636 }; 637 638 enum notice_asneeded_action { 639 notice_as_needed, 640 notice_not_needed, 641 notice_needed 642 }; 643 644 extern bfd_boolean bfd_elf_record_link_assignment 645 (bfd *, struct bfd_link_info *, const char *, bfd_boolean, 646 bfd_boolean); 647 extern struct bfd_link_needed_list *bfd_elf_get_needed_list 648 (bfd *, struct bfd_link_info *); 649 extern bfd_boolean bfd_elf_get_bfd_needed_list 650 (bfd *, struct bfd_link_needed_list **); 651 extern bfd_boolean bfd_elf_stack_segment_size (bfd *, struct bfd_link_info *, 652 const char *, bfd_vma); 653 extern bfd_boolean bfd_elf_size_dynamic_sections 654 (bfd *, const char *, const char *, const char *, const char *, const char *, 655 const char * const *, struct bfd_link_info *, struct bfd_section **); 656 extern bfd_boolean bfd_elf_size_dynsym_hash_dynstr 657 (bfd *, struct bfd_link_info *); 658 extern void bfd_elf_set_dt_needed_name 659 (bfd *, const char *); 660 extern const char *bfd_elf_get_dt_soname 661 (bfd *); 662 extern void bfd_elf_set_dyn_lib_class 663 (bfd *, enum dynamic_lib_link_class); 664 extern int bfd_elf_get_dyn_lib_class 665 (bfd *); 666 extern struct bfd_link_needed_list *bfd_elf_get_runpath_list 667 (bfd *, struct bfd_link_info *); 668 extern bfd_boolean bfd_elf_discard_info 669 (bfd *, struct bfd_link_info *); 670 extern unsigned int _bfd_elf_default_action_discarded 671 (struct bfd_section *); 672 673 /* Return an upper bound on the number of bytes required to store a 674 copy of ABFD's program header table entries. Return -1 if an error 675 occurs; bfd_get_error will return an appropriate code. */ 676 extern long bfd_get_elf_phdr_upper_bound 677 (bfd *abfd); 678 679 /* Copy ABFD's program header table entries to *PHDRS. The entries 680 will be stored as an array of Elf_Internal_Phdr structures, as 681 defined in include/elf/internal.h. To find out how large the 682 buffer needs to be, call bfd_get_elf_phdr_upper_bound. 683 684 Return the number of program header table entries read, or -1 if an 685 error occurs; bfd_get_error will return an appropriate code. */ 686 extern int bfd_get_elf_phdrs 687 (bfd *abfd, void *phdrs); 688 689 /* Create a new BFD as if by bfd_openr. Rather than opening a file, 690 reconstruct an ELF file by reading the segments out of remote memory 691 based on the ELF file header at EHDR_VMA and the ELF program headers it 692 points to. If not null, *LOADBASEP is filled in with the difference 693 between the VMAs from which the segments were read, and the VMAs the 694 file headers (and hence BFD's idea of each section's VMA) put them at. 695 696 The function TARGET_READ_MEMORY is called to copy LEN bytes from the 697 remote memory at target address VMA into the local buffer at MYADDR; it 698 should return zero on success or an `errno' code on failure. TEMPL must 699 be a BFD for an ELF target with the word size and byte order found in 700 the remote memory. */ 701 extern bfd *bfd_elf_bfd_from_remote_memory 702 (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep, 703 int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr, 704 bfd_size_type len)); 705 706 extern struct bfd_section *_bfd_elf_tls_setup 707 (bfd *, struct bfd_link_info *); 708 709 extern struct bfd_section * 710 _bfd_nearby_section (bfd *, struct bfd_section *, bfd_vma); 711 712 extern void _bfd_fix_excluded_sec_syms 713 (bfd *, struct bfd_link_info *); 714 715 extern unsigned bfd_m68k_mach_to_features (int); 716 717 extern int bfd_m68k_features_to_mach (unsigned); 718 719 extern bfd_boolean bfd_m68k_elf32_create_embedded_relocs 720 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 721 char **); 722 723 extern void bfd_elf_m68k_set_target_options (struct bfd_link_info *, int); 724 725 extern bfd_boolean bfd_bfin_elf32_create_embedded_relocs 726 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 727 char **); 728 729 extern bfd_boolean bfd_cr16_elf32_create_embedded_relocs 730 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 731 char **); 732 733 /* SunOS shared library support routines for the linker. */ 734 735 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list 736 (bfd *, struct bfd_link_info *); 737 extern bfd_boolean bfd_sunos_record_link_assignment 738 (bfd *, struct bfd_link_info *, const char *); 739 extern bfd_boolean bfd_sunos_size_dynamic_sections 740 (bfd *, struct bfd_link_info *, struct bfd_section **, 741 struct bfd_section **, struct bfd_section **); 742 743 /* Linux shared library support routines for the linker. */ 744 745 extern bfd_boolean bfd_i386linux_size_dynamic_sections 746 (bfd *, struct bfd_link_info *); 747 extern bfd_boolean bfd_m68klinux_size_dynamic_sections 748 (bfd *, struct bfd_link_info *); 749 extern bfd_boolean bfd_sparclinux_size_dynamic_sections 750 (bfd *, struct bfd_link_info *); 751 752 /* mmap hacks */ 753 754 struct _bfd_window_internal; 755 typedef struct _bfd_window_internal bfd_window_internal; 756 757 typedef struct _bfd_window 758 { 759 /* What the user asked for. */ 760 void *data; 761 bfd_size_type size; 762 /* The actual window used by BFD. Small user-requested read-only 763 regions sharing a page may share a single window into the object 764 file. Read-write versions shouldn't until I've fixed things to 765 keep track of which portions have been claimed by the 766 application; don't want to give the same region back when the 767 application wants two writable copies! */ 768 struct _bfd_window_internal *i; 769 } 770 bfd_window; 771 772 extern void bfd_init_window 773 (bfd_window *); 774 extern void bfd_free_window 775 (bfd_window *); 776 extern bfd_boolean bfd_get_file_window 777 (bfd *, file_ptr, bfd_size_type, bfd_window *, bfd_boolean); 778 779 /* XCOFF support routines for the linker. */ 780 781 extern bfd_boolean bfd_xcoff_split_import_path 782 (bfd *, const char *, const char **, const char **); 783 extern bfd_boolean bfd_xcoff_set_archive_import_path 784 (struct bfd_link_info *, bfd *, const char *); 785 extern bfd_boolean bfd_xcoff_link_record_set 786 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_size_type); 787 extern bfd_boolean bfd_xcoff_import_symbol 788 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_vma, 789 const char *, const char *, const char *, unsigned int); 790 extern bfd_boolean bfd_xcoff_export_symbol 791 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *); 792 extern bfd_boolean bfd_xcoff_link_count_reloc 793 (bfd *, struct bfd_link_info *, const char *); 794 extern bfd_boolean bfd_xcoff_record_link_assignment 795 (bfd *, struct bfd_link_info *, const char *); 796 extern bfd_boolean bfd_xcoff_size_dynamic_sections 797 (bfd *, struct bfd_link_info *, const char *, const char *, 798 unsigned long, unsigned long, unsigned long, bfd_boolean, 799 int, bfd_boolean, unsigned int, struct bfd_section **, bfd_boolean); 800 extern bfd_boolean bfd_xcoff_link_generate_rtinit 801 (bfd *, const char *, const char *, bfd_boolean); 802 803 /* XCOFF support routines for ar. */ 804 extern bfd_boolean bfd_xcoff_ar_archive_set_magic 805 (bfd *, char *); 806 807 /* Externally visible COFF routines. */ 808 809 #if defined(__STDC__) || defined(ALMOST_STDC) 810 struct internal_syment; 811 union internal_auxent; 812 #endif 813 814 extern bfd_boolean bfd_coff_get_syment 815 (bfd *, struct bfd_symbol *, struct internal_syment *); 816 817 extern bfd_boolean bfd_coff_get_auxent 818 (bfd *, struct bfd_symbol *, int, union internal_auxent *); 819 820 extern bfd_boolean bfd_coff_set_symbol_class 821 (bfd *, struct bfd_symbol *, unsigned int); 822 823 extern bfd_boolean bfd_m68k_coff_create_embedded_relocs 824 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, char **); 825 826 /* ARM VFP11 erratum workaround support. */ 827 typedef enum 828 { 829 BFD_ARM_VFP11_FIX_DEFAULT, 830 BFD_ARM_VFP11_FIX_NONE, 831 BFD_ARM_VFP11_FIX_SCALAR, 832 BFD_ARM_VFP11_FIX_VECTOR 833 } bfd_arm_vfp11_fix; 834 835 extern void bfd_elf32_arm_init_maps 836 (bfd *); 837 838 extern void bfd_elf32_arm_set_vfp11_fix 839 (bfd *, struct bfd_link_info *); 840 841 extern void bfd_elf32_arm_set_cortex_a8_fix 842 (bfd *, struct bfd_link_info *); 843 844 extern bfd_boolean bfd_elf32_arm_vfp11_erratum_scan 845 (bfd *, struct bfd_link_info *); 846 847 extern void bfd_elf32_arm_vfp11_fix_veneer_locations 848 (bfd *, struct bfd_link_info *); 849 850 /* ARM Interworking support. Called from linker. */ 851 extern bfd_boolean bfd_arm_allocate_interworking_sections 852 (struct bfd_link_info *); 853 854 extern bfd_boolean bfd_arm_process_before_allocation 855 (bfd *, struct bfd_link_info *, int); 856 857 extern bfd_boolean bfd_arm_get_bfd_for_interworking 858 (bfd *, struct bfd_link_info *); 859 860 /* PE ARM Interworking support. Called from linker. */ 861 extern bfd_boolean bfd_arm_pe_allocate_interworking_sections 862 (struct bfd_link_info *); 863 864 extern bfd_boolean bfd_arm_pe_process_before_allocation 865 (bfd *, struct bfd_link_info *, int); 866 867 extern bfd_boolean bfd_arm_pe_get_bfd_for_interworking 868 (bfd *, struct bfd_link_info *); 869 870 /* ELF ARM Interworking support. Called from linker. */ 871 extern bfd_boolean bfd_elf32_arm_allocate_interworking_sections 872 (struct bfd_link_info *); 873 874 extern bfd_boolean bfd_elf32_arm_process_before_allocation 875 (bfd *, struct bfd_link_info *); 876 877 void bfd_elf32_arm_set_target_relocs 878 (bfd *, struct bfd_link_info *, int, char *, int, int, bfd_arm_vfp11_fix, 879 int, int, int, int, int); 880 881 extern bfd_boolean bfd_elf32_arm_get_bfd_for_interworking 882 (bfd *, struct bfd_link_info *); 883 884 extern bfd_boolean bfd_elf32_arm_add_glue_sections_to_bfd 885 (bfd *, struct bfd_link_info *); 886 887 /* ELF ARM mapping symbol support */ 888 #define BFD_ARM_SPECIAL_SYM_TYPE_MAP (1 << 0) 889 #define BFD_ARM_SPECIAL_SYM_TYPE_TAG (1 << 1) 890 #define BFD_ARM_SPECIAL_SYM_TYPE_OTHER (1 << 2) 891 #define BFD_ARM_SPECIAL_SYM_TYPE_ANY (~0) 892 extern bfd_boolean bfd_is_arm_special_symbol_name 893 (const char * name, int type); 894 895 extern void bfd_elf32_arm_set_byteswap_code (struct bfd_link_info *, int); 896 897 /* ARM Note section processing. */ 898 extern bfd_boolean bfd_arm_merge_machines 899 (bfd *, bfd *); 900 901 extern bfd_boolean bfd_arm_update_notes 902 (bfd *, const char *); 903 904 extern unsigned int bfd_arm_get_mach_from_notes 905 (bfd *, const char *); 906 907 /* ARM stub generation support. Called from the linker. */ 908 extern int elf32_arm_setup_section_lists 909 (bfd *, struct bfd_link_info *); 910 extern void elf32_arm_next_input_section 911 (struct bfd_link_info *, struct bfd_section *); 912 extern bfd_boolean elf32_arm_size_stubs 913 (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, 914 struct bfd_section * (*) (const char *, struct bfd_section *), void (*) (void)); 915 extern bfd_boolean elf32_arm_build_stubs 916 (struct bfd_link_info *); 917 918 /* ARM unwind section editing support. */ 919 extern bfd_boolean elf32_arm_fix_exidx_coverage 920 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean); 921 922 /* C6x unwind section editing support. */ 923 extern bfd_boolean elf32_tic6x_fix_exidx_coverage 924 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean); 925 926 /* PowerPC @tls opcode transform/validate. */ 927 extern unsigned int _bfd_elf_ppc_at_tls_transform 928 (unsigned int, unsigned int); 929 /* PowerPC @tprel opcode transform/validate. */ 930 extern unsigned int _bfd_elf_ppc_at_tprel_transform 931 (unsigned int, unsigned int); 932 933 extern void bfd_elf64_aarch64_init_maps 934 (bfd *); 935 936 void bfd_elf64_aarch64_set_options 937 (bfd *, struct bfd_link_info *, int, int, int); 938 939 /* ELF AArch64 mapping symbol support. */ 940 #define BFD_AARCH64_SPECIAL_SYM_TYPE_MAP (1 << 0) 941 #define BFD_AARCH64_SPECIAL_SYM_TYPE_TAG (1 << 1) 942 #define BFD_AARCH64_SPECIAL_SYM_TYPE_OTHER (1 << 2) 943 #define BFD_AARCH64_SPECIAL_SYM_TYPE_ANY (~0) 944 extern bfd_boolean bfd_is_aarch64_special_symbol_name 945 (const char * name, int type); 946 947 /* AArch64 stub generation support. Called from the linker. */ 948 extern int elf64_aarch64_setup_section_lists 949 (bfd *, struct bfd_link_info *); 950 extern void elf64_aarch64_next_input_section 951 (struct bfd_link_info *, struct bfd_section *); 952 extern bfd_boolean elf64_aarch64_size_stubs 953 (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, 954 struct bfd_section * (*) (const char *, struct bfd_section *), 955 void (*) (void)); 956 extern bfd_boolean elf64_aarch64_build_stubs 957 (struct bfd_link_info *); 958 959 /* TI COFF load page support. */ 960 extern void bfd_ticoff_set_section_load_page 961 (struct bfd_section *, int); 962 963 extern int bfd_ticoff_get_section_load_page 964 (struct bfd_section *); 965 966 /* H8/300 functions. */ 967 extern bfd_vma bfd_h8300_pad_address 968 (bfd *, bfd_vma); 969 970 /* IA64 Itanium code generation. Called from linker. */ 971 extern void bfd_elf32_ia64_after_parse 972 (int); 973 974 extern void bfd_elf64_ia64_after_parse 975 (int); 976 977 /* This structure is used for a comdat section, as in PE. A comdat 978 section is associated with a particular symbol. When the linker 979 sees a comdat section, it keeps only one of the sections with a 980 given name and associated with a given symbol. */ 981 982 struct coff_comdat_info 983 { 984 /* The name of the symbol associated with a comdat section. */ 985 const char *name; 986 987 /* The local symbol table index of the symbol associated with a 988 comdat section. This is only meaningful to the object file format 989 specific code; it is not an index into the list returned by 990 bfd_canonicalize_symtab. */ 991 long symbol; 992 }; 993 994 extern struct coff_comdat_info *bfd_coff_get_comdat_section 995 (bfd *, struct bfd_section *); 996 997