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, 4 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 5 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 #ifdef __cplusplus 29 extern "C" { 30 #endif 31 32 #include "ansidecl.h" 33 #include "symcat.h" 34 #if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE) 35 #ifndef SABER 36 /* This hack is to avoid a problem with some strict ANSI C preprocessors. 37 The problem is, "32_" is not a valid preprocessing token, and we don't 38 want extra underscores (e.g., "nlm_32_"). The XCONCAT2 macro will 39 cause the inner CONCAT2 macros to be evaluated first, producing 40 still-valid pp-tokens. Then the final concatenation can be done. */ 41 #undef CONCAT4 42 #define CONCAT4(a,b,c,d) XCONCAT2(CONCAT2(a,b),CONCAT2(c,d)) 43 #endif 44 #endif 45 46 /* This is a utility macro to handle the situation where the code 47 wants to place a constant string into the code, followed by a 48 comma and then the length of the string. Doing this by hand 49 is error prone, so using this macro is safer. */ 50 #define STRING_COMMA_LEN(STR) (STR), (sizeof (STR) - 1) 51 /* Unfortunately it is not possible to use the STRING_COMMA_LEN macro 52 to create the arguments to another macro, since the preprocessor 53 will mis-count the number of arguments to the outer macro (by not 54 evaluating STRING_COMMA_LEN and so missing the comma). This is a 55 problem for example when trying to use STRING_COMMA_LEN to build 56 the arguments to the strncmp() macro. Hence this alternative 57 definition of strncmp is provided here. 58 59 Note - these macros do NOT work if STR2 is not a constant string. */ 60 #define CONST_STRNEQ(STR1,STR2) (strncmp ((STR1), (STR2), sizeof (STR2) - 1) == 0) 61 /* strcpy() can have a similar problem, but since we know we are 62 copying a constant string, we can use memcpy which will be faster 63 since there is no need to check for a NUL byte inside STR. We 64 can also save time if we do not need to copy the terminating NUL. */ 65 #define LITMEMCPY(DEST,STR2) memcpy ((DEST), (STR2), sizeof (STR2) - 1) 66 #define LITSTRCPY(DEST,STR2) memcpy ((DEST), (STR2), sizeof (STR2)) 67 68 69 #define BFD_SUPPORTS_PLUGINS @supports_plugins@ 70 71 /* The word size used by BFD on the host. This may be 64 with a 32 72 bit target if the host is 64 bit, or if other 64 bit targets have 73 been selected with --enable-targets, or if --enable-64-bit-bfd. */ 74 #define BFD_ARCH_SIZE @wordsize@ 75 76 /* The word size of the default bfd target. */ 77 #define BFD_DEFAULT_TARGET_SIZE @bfd_default_target_size@ 78 79 #define BFD_HOST_64BIT_LONG @BFD_HOST_64BIT_LONG@ 80 #define BFD_HOST_64BIT_LONG_LONG @BFD_HOST_64BIT_LONG_LONG@ 81 #if @BFD_HOST_64_BIT_DEFINED@ 82 #define BFD_HOST_64_BIT @BFD_HOST_64_BIT@ 83 #define BFD_HOST_U_64_BIT @BFD_HOST_U_64_BIT@ 84 typedef BFD_HOST_64_BIT bfd_int64_t; 85 typedef BFD_HOST_U_64_BIT bfd_uint64_t; 86 #endif 87 88 #if BFD_ARCH_SIZE >= 64 89 #define BFD64 90 #endif 91 92 #ifndef INLINE 93 #if __GNUC__ >= 2 94 #define INLINE __inline__ 95 #else 96 #define INLINE 97 #endif 98 #endif 99 100 /* Declaring a type wide enough to hold a host long and a host pointer. */ 101 #define BFD_HOSTPTR_T @BFD_HOSTPTR_T@ 102 typedef BFD_HOSTPTR_T bfd_hostptr_t; 103 104 /* Forward declaration. */ 105 typedef struct bfd bfd; 106 107 /* Boolean type used in bfd. Too many systems define their own 108 versions of "boolean" for us to safely typedef a "boolean" of 109 our own. Using an enum for "bfd_boolean" has its own set of 110 problems, with strange looking casts required to avoid warnings 111 on some older compilers. Thus we just use an int. 112 113 General rule: Functions which are bfd_boolean return TRUE on 114 success and FALSE on failure (unless they're a predicate). */ 115 116 typedef int bfd_boolean; 117 #undef FALSE 118 #undef TRUE 119 #define FALSE 0 120 #define TRUE 1 121 122 #ifdef BFD64 123 124 #ifndef BFD_HOST_64_BIT 125 #error No 64 bit integer type available 126 #endif /* ! defined (BFD_HOST_64_BIT) */ 127 128 typedef BFD_HOST_U_64_BIT bfd_vma; 129 typedef BFD_HOST_64_BIT bfd_signed_vma; 130 typedef BFD_HOST_U_64_BIT bfd_size_type; 131 typedef BFD_HOST_U_64_BIT symvalue; 132 133 #if BFD_HOST_64BIT_LONG 134 #define BFD_VMA_FMT "l" 135 #elif defined (__MSVCRT__) 136 #define BFD_VMA_FMT "I64" 137 #else 138 #define BFD_VMA_FMT "ll" 139 #endif 140 141 #ifndef fprintf_vma 142 #define sprintf_vma(s,x) sprintf (s, "%016" BFD_VMA_FMT "x", x) 143 #define fprintf_vma(f,x) fprintf (f, "%016" BFD_VMA_FMT "x", x) 144 #endif 145 146 #else /* not BFD64 */ 147 148 /* Represent a target address. Also used as a generic unsigned type 149 which is guaranteed to be big enough to hold any arithmetic types 150 we need to deal with. */ 151 typedef unsigned long bfd_vma; 152 153 /* A generic signed type which is guaranteed to be big enough to hold any 154 arithmetic types we need to deal with. Can be assumed to be compatible 155 with bfd_vma in the same way that signed and unsigned ints are compatible 156 (as parameters, in assignment, etc). */ 157 typedef long bfd_signed_vma; 158 159 typedef unsigned long symvalue; 160 typedef unsigned long bfd_size_type; 161 162 /* Print a bfd_vma x on stream s. */ 163 #define BFD_VMA_FMT "l" 164 #define fprintf_vma(s,x) fprintf (s, "%08" BFD_VMA_FMT "x", x) 165 #define sprintf_vma(s,x) sprintf (s, "%08" BFD_VMA_FMT "x", x) 166 167 #endif /* not BFD64 */ 168 169 #define HALF_BFD_SIZE_TYPE \ 170 (((bfd_size_type) 1) << (8 * sizeof (bfd_size_type) / 2)) 171 172 #ifndef BFD_HOST_64_BIT 173 /* Fall back on a 32 bit type. The idea is to make these types always 174 available for function return types, but in the case that 175 BFD_HOST_64_BIT is undefined such a function should abort or 176 otherwise signal an error. */ 177 typedef bfd_signed_vma bfd_int64_t; 178 typedef bfd_vma bfd_uint64_t; 179 #endif 180 181 /* An offset into a file. BFD always uses the largest possible offset 182 based on the build time availability of fseek, fseeko, or fseeko64. */ 183 typedef @bfd_file_ptr@ file_ptr; 184 typedef unsigned @bfd_file_ptr@ ufile_ptr; 185 186 extern void bfd_sprintf_vma (bfd *, char *, bfd_vma); 187 extern void bfd_fprintf_vma (bfd *, void *, bfd_vma); 188 189 #define printf_vma(x) fprintf_vma(stdout,x) 190 #define bfd_printf_vma(abfd,x) bfd_fprintf_vma (abfd,stdout,x) 191 192 typedef unsigned int flagword; /* 32 bits of flags */ 193 typedef unsigned char bfd_byte; 194 195 /* File formats. */ 196 197 typedef enum bfd_format 198 { 199 bfd_unknown = 0, /* File format is unknown. */ 200 bfd_object, /* Linker/assembler/compiler output. */ 201 bfd_archive, /* Object archive file. */ 202 bfd_core, /* Core dump. */ 203 bfd_type_end /* Marks the end; don't use it! */ 204 } 205 bfd_format; 206 207 /* Symbols and relocation. */ 208 209 /* A count of carsyms (canonical archive symbols). */ 210 typedef unsigned long symindex; 211 212 /* How to perform a relocation. */ 213 typedef const struct reloc_howto_struct reloc_howto_type; 214 215 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0) 216 217 /* General purpose part of a symbol X; 218 target specific parts are in libcoff.h, libaout.h, etc. */ 219 220 #define bfd_get_section(x) ((x)->section) 221 #define bfd_get_output_section(x) ((x)->section->output_section) 222 #define bfd_set_section(x,y) ((x)->section) = (y) 223 #define bfd_asymbol_base(x) ((x)->section->vma) 224 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value) 225 #define bfd_asymbol_name(x) ((x)->name) 226 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/ 227 #define bfd_asymbol_bfd(x) ((x)->the_bfd) 228 #define bfd_asymbol_flavour(x) \ 229 (((x)->flags & BSF_SYNTHETIC) != 0 \ 230 ? bfd_target_unknown_flavour \ 231 : bfd_asymbol_bfd (x)->xvec->flavour) 232 233 /* A canonical archive symbol. */ 234 /* This is a type pun with struct ranlib on purpose! */ 235 typedef struct carsym 236 { 237 char *name; 238 file_ptr file_offset; /* Look here to find the file. */ 239 } 240 carsym; /* To make these you call a carsymogen. */ 241 242 /* Used in generating armaps (archive tables of contents). 243 Perhaps just a forward definition would do? */ 244 struct orl /* Output ranlib. */ 245 { 246 char **name; /* Symbol name. */ 247 union 248 { 249 file_ptr pos; 250 bfd *abfd; 251 } u; /* bfd* or file position. */ 252 int namidx; /* Index into string table. */ 253 }; 254 255 /* Linenumber stuff. */ 256 typedef struct lineno_cache_entry 257 { 258 unsigned int line_number; /* Linenumber from start of function. */ 259 union 260 { 261 struct bfd_symbol *sym; /* Function name. */ 262 bfd_vma offset; /* Offset into section. */ 263 } u; 264 } 265 alent; 266 267 /* Object and core file sections. */ 268 269 #define align_power(addr, align) \ 270 (((addr) + ((bfd_vma) 1 << (align)) - 1) & ((bfd_vma) -1 << (align))) 271 272 typedef struct bfd_section *sec_ptr; 273 274 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0) 275 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0) 276 #define bfd_get_section_lma(bfd, ptr) ((ptr)->lma + 0) 277 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0) 278 #define bfd_section_name(bfd, ptr) ((ptr)->name) 279 #define bfd_section_size(bfd, ptr) ((ptr)->size) 280 #define bfd_get_section_size(ptr) ((ptr)->size) 281 #define bfd_section_vma(bfd, ptr) ((ptr)->vma) 282 #define bfd_section_lma(bfd, ptr) ((ptr)->lma) 283 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power) 284 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0) 285 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata) 286 287 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0) 288 289 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma = (val)), ((ptr)->user_set_vma = TRUE), TRUE) 290 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),TRUE) 291 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),TRUE) 292 /* Find the address one past the end of SEC. */ 293 #define bfd_get_section_limit(bfd, sec) \ 294 (((sec)->rawsize ? (sec)->rawsize : (sec)->size) \ 295 / bfd_octets_per_byte (bfd)) 296 297 /* Return TRUE if section has been discarded. */ 298 #define elf_discarded_section(sec) \ 299 (!bfd_is_abs_section (sec) \ 300 && bfd_is_abs_section ((sec)->output_section) \ 301 && (sec)->sec_info_type != ELF_INFO_TYPE_MERGE \ 302 && (sec)->sec_info_type != ELF_INFO_TYPE_JUST_SYMS) 303 304 /* Forward define. */ 305 struct stat; 306 307 typedef enum bfd_print_symbol 308 { 309 bfd_print_symbol_name, 310 bfd_print_symbol_more, 311 bfd_print_symbol_all 312 } bfd_print_symbol_type; 313 314 /* Information about a symbol that nm needs. */ 315 316 typedef struct _symbol_info 317 { 318 symvalue value; 319 char type; 320 const char *name; /* Symbol name. */ 321 unsigned char stab_type; /* Stab type. */ 322 char stab_other; /* Stab other. */ 323 short stab_desc; /* Stab desc. */ 324 const char *stab_name; /* String for stab type. */ 325 } symbol_info; 326 327 /* Get the name of a stabs type code. */ 328 329 extern const char *bfd_get_stab_name (int); 330 331 /* Hash table routines. There is no way to free up a hash table. */ 332 333 /* An element in the hash table. Most uses will actually use a larger 334 structure, and an instance of this will be the first field. */ 335 336 struct bfd_hash_entry 337 { 338 /* Next entry for this hash code. */ 339 struct bfd_hash_entry *next; 340 /* String being hashed. */ 341 const char *string; 342 /* Hash code. This is the full hash code, not the index into the 343 table. */ 344 unsigned long hash; 345 }; 346 347 /* A hash table. */ 348 349 struct bfd_hash_table 350 { 351 /* The hash array. */ 352 struct bfd_hash_entry **table; 353 /* A function used to create new elements in the hash table. The 354 first entry is itself a pointer to an element. When this 355 function is first invoked, this pointer will be NULL. However, 356 having the pointer permits a hierarchy of method functions to be 357 built each of which calls the function in the superclass. Thus 358 each function should be written to allocate a new block of memory 359 only if the argument is NULL. */ 360 struct bfd_hash_entry *(*newfunc) 361 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 362 /* An objalloc for this hash table. This is a struct objalloc *, 363 but we use void * to avoid requiring the inclusion of objalloc.h. */ 364 void *memory; 365 /* The number of slots in the hash table. */ 366 unsigned int size; 367 /* The number of entries in the hash table. */ 368 unsigned int count; 369 /* The size of elements. */ 370 unsigned int entsize; 371 /* If non-zero, don't grow the hash table. */ 372 unsigned int frozen:1; 373 }; 374 375 /* Initialize a hash table. */ 376 extern bfd_boolean bfd_hash_table_init 377 (struct bfd_hash_table *, 378 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 379 struct bfd_hash_table *, 380 const char *), 381 unsigned int); 382 383 /* Initialize a hash table specifying a size. */ 384 extern bfd_boolean bfd_hash_table_init_n 385 (struct bfd_hash_table *, 386 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 387 struct bfd_hash_table *, 388 const char *), 389 unsigned int, unsigned int); 390 391 /* Free up a hash table. */ 392 extern void bfd_hash_table_free 393 (struct bfd_hash_table *); 394 395 /* Look up a string in a hash table. If CREATE is TRUE, a new entry 396 will be created for this string if one does not already exist. The 397 COPY argument must be TRUE if this routine should copy the string 398 into newly allocated memory when adding an entry. */ 399 extern struct bfd_hash_entry *bfd_hash_lookup 400 (struct bfd_hash_table *, const char *, bfd_boolean create, 401 bfd_boolean copy); 402 403 /* Insert an entry in a hash table. */ 404 extern struct bfd_hash_entry *bfd_hash_insert 405 (struct bfd_hash_table *, const char *, unsigned long); 406 407 /* Replace an entry in a hash table. */ 408 extern void bfd_hash_replace 409 (struct bfd_hash_table *, struct bfd_hash_entry *old, 410 struct bfd_hash_entry *nw); 411 412 /* Base method for creating a hash table entry. */ 413 extern struct bfd_hash_entry *bfd_hash_newfunc 414 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 415 416 /* Grab some space for a hash table entry. */ 417 extern void *bfd_hash_allocate 418 (struct bfd_hash_table *, unsigned int); 419 420 /* Traverse a hash table in a random order, calling a function on each 421 element. If the function returns FALSE, the traversal stops. The 422 INFO argument is passed to the function. */ 423 extern void bfd_hash_traverse 424 (struct bfd_hash_table *, 425 bfd_boolean (*) (struct bfd_hash_entry *, void *), 426 void *info); 427 428 /* Allows the default size of a hash table to be configured. New hash 429 tables allocated using bfd_hash_table_init will be created with 430 this size. */ 431 extern void bfd_hash_set_default_size (bfd_size_type); 432 433 /* This structure is used to keep track of stabs in sections 434 information while linking. */ 435 436 struct stab_info 437 { 438 /* A hash table used to hold stabs strings. */ 439 struct bfd_strtab_hash *strings; 440 /* The header file hash table. */ 441 struct bfd_hash_table includes; 442 /* The first .stabstr section. */ 443 struct bfd_section *stabstr; 444 }; 445 446 #define COFF_SWAP_TABLE (void *) &bfd_coff_std_swap_table 447 448 /* User program access to BFD facilities. */ 449 450 /* Direct I/O routines, for programs which know more about the object 451 file than BFD does. Use higher level routines if possible. */ 452 453 extern bfd_size_type bfd_bread (void *, bfd_size_type, bfd *); 454 extern bfd_size_type bfd_bwrite (const void *, bfd_size_type, bfd *); 455 extern int bfd_seek (bfd *, file_ptr, int); 456 extern file_ptr bfd_tell (bfd *); 457 extern int bfd_flush (bfd *); 458 extern int bfd_stat (bfd *, struct stat *); 459 460 /* Deprecated old routines. */ 461 #if __GNUC__ 462 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD) \ 463 (warn_deprecated ("bfd_read", __FILE__, __LINE__, __FUNCTION__), \ 464 bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 465 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD) \ 466 (warn_deprecated ("bfd_write", __FILE__, __LINE__, __FUNCTION__), \ 467 bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 468 #else 469 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD) \ 470 (warn_deprecated ("bfd_read", (const char *) 0, 0, (const char *) 0), \ 471 bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 472 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD) \ 473 (warn_deprecated ("bfd_write", (const char *) 0, 0, (const char *) 0),\ 474 bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD))) 475 #endif 476 extern void warn_deprecated (const char *, const char *, int, const char *); 477 478 /* Cast from const char * to char * so that caller can assign to 479 a char * without a warning. */ 480 #define bfd_get_filename(abfd) ((char *) (abfd)->filename) 481 #define bfd_get_cacheable(abfd) ((abfd)->cacheable) 482 #define bfd_get_format(abfd) ((abfd)->format) 483 #define bfd_get_target(abfd) ((abfd)->xvec->name) 484 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour) 485 #define bfd_family_coff(abfd) \ 486 (bfd_get_flavour (abfd) == bfd_target_coff_flavour || \ 487 bfd_get_flavour (abfd) == bfd_target_xcoff_flavour) 488 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG) 489 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE) 490 #define bfd_header_big_endian(abfd) \ 491 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG) 492 #define bfd_header_little_endian(abfd) \ 493 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE) 494 #define bfd_get_file_flags(abfd) ((abfd)->flags) 495 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags) 496 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags) 497 #define bfd_my_archive(abfd) ((abfd)->my_archive) 498 #define bfd_has_map(abfd) ((abfd)->has_armap) 499 #define bfd_is_thin_archive(abfd) ((abfd)->is_thin_archive) 500 501 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types) 502 #define bfd_usrdata(abfd) ((abfd)->usrdata) 503 504 #define bfd_get_start_address(abfd) ((abfd)->start_address) 505 #define bfd_get_symcount(abfd) ((abfd)->symcount) 506 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols) 507 #define bfd_count_sections(abfd) ((abfd)->section_count) 508 509 #define bfd_get_dynamic_symcount(abfd) ((abfd)->dynsymcount) 510 511 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char) 512 513 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = bool), TRUE) 514 515 extern bfd_boolean bfd_cache_close 516 (bfd *abfd); 517 /* NB: This declaration should match the autogenerated one in libbfd.h. */ 518 519 extern bfd_boolean bfd_cache_close_all (void); 520 521 extern bfd_boolean bfd_record_phdr 522 (bfd *, unsigned long, bfd_boolean, flagword, bfd_boolean, bfd_vma, 523 bfd_boolean, bfd_boolean, unsigned int, struct bfd_section **); 524 525 /* Byte swapping routines. */ 526 527 bfd_uint64_t bfd_getb64 (const void *); 528 bfd_uint64_t bfd_getl64 (const void *); 529 bfd_int64_t bfd_getb_signed_64 (const void *); 530 bfd_int64_t bfd_getl_signed_64 (const void *); 531 bfd_vma bfd_getb32 (const void *); 532 bfd_vma bfd_getl32 (const void *); 533 bfd_signed_vma bfd_getb_signed_32 (const void *); 534 bfd_signed_vma bfd_getl_signed_32 (const void *); 535 bfd_vma bfd_getb16 (const void *); 536 bfd_vma bfd_getl16 (const void *); 537 bfd_signed_vma bfd_getb_signed_16 (const void *); 538 bfd_signed_vma bfd_getl_signed_16 (const void *); 539 void bfd_putb64 (bfd_uint64_t, void *); 540 void bfd_putl64 (bfd_uint64_t, void *); 541 void bfd_putb32 (bfd_vma, void *); 542 void bfd_putl32 (bfd_vma, void *); 543 void bfd_putb16 (bfd_vma, void *); 544 void bfd_putl16 (bfd_vma, void *); 545 546 /* Byte swapping routines which take size and endiannes as arguments. */ 547 548 bfd_uint64_t bfd_get_bits (const void *, int, bfd_boolean); 549 void bfd_put_bits (bfd_uint64_t, void *, int, bfd_boolean); 550 551 extern bfd_boolean bfd_section_already_linked_table_init (void); 552 extern void bfd_section_already_linked_table_free (void); 553 554 /* Externally visible ECOFF routines. */ 555 556 #if defined(__STDC__) || defined(ALMOST_STDC) 557 struct ecoff_debug_info; 558 struct ecoff_debug_swap; 559 struct ecoff_extr; 560 struct bfd_symbol; 561 struct bfd_link_info; 562 struct bfd_link_hash_entry; 563 struct bfd_elf_version_tree; 564 #endif 565 extern bfd_vma bfd_ecoff_get_gp_value 566 (bfd * abfd); 567 extern bfd_boolean bfd_ecoff_set_gp_value 568 (bfd *abfd, bfd_vma gp_value); 569 extern bfd_boolean bfd_ecoff_set_regmasks 570 (bfd *abfd, unsigned long gprmask, unsigned long fprmask, 571 unsigned long *cprmask); 572 extern void *bfd_ecoff_debug_init 573 (bfd *output_bfd, struct ecoff_debug_info *output_debug, 574 const struct ecoff_debug_swap *output_swap, struct bfd_link_info *); 575 extern void bfd_ecoff_debug_free 576 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 577 const struct ecoff_debug_swap *output_swap, struct bfd_link_info *); 578 extern bfd_boolean bfd_ecoff_debug_accumulate 579 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 580 const struct ecoff_debug_swap *output_swap, bfd *input_bfd, 581 struct ecoff_debug_info *input_debug, 582 const struct ecoff_debug_swap *input_swap, struct bfd_link_info *); 583 extern bfd_boolean bfd_ecoff_debug_accumulate_other 584 (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug, 585 const struct ecoff_debug_swap *output_swap, bfd *input_bfd, 586 struct bfd_link_info *); 587 extern bfd_boolean bfd_ecoff_debug_externals 588 (bfd *abfd, struct ecoff_debug_info *debug, 589 const struct ecoff_debug_swap *swap, bfd_boolean relocatable, 590 bfd_boolean (*get_extr) (struct bfd_symbol *, struct ecoff_extr *), 591 void (*set_index) (struct bfd_symbol *, bfd_size_type)); 592 extern bfd_boolean bfd_ecoff_debug_one_external 593 (bfd *abfd, struct ecoff_debug_info *debug, 594 const struct ecoff_debug_swap *swap, const char *name, 595 struct ecoff_extr *esym); 596 extern bfd_size_type bfd_ecoff_debug_size 597 (bfd *abfd, struct ecoff_debug_info *debug, 598 const struct ecoff_debug_swap *swap); 599 extern bfd_boolean bfd_ecoff_write_debug 600 (bfd *abfd, struct ecoff_debug_info *debug, 601 const struct ecoff_debug_swap *swap, file_ptr where); 602 extern bfd_boolean bfd_ecoff_write_accumulated_debug 603 (void *handle, bfd *abfd, struct ecoff_debug_info *debug, 604 const struct ecoff_debug_swap *swap, 605 struct bfd_link_info *info, file_ptr where); 606 607 /* Externally visible ELF routines. */ 608 609 struct bfd_link_needed_list 610 { 611 struct bfd_link_needed_list *next; 612 bfd *by; 613 const char *name; 614 }; 615 616 enum dynamic_lib_link_class { 617 DYN_NORMAL = 0, 618 DYN_AS_NEEDED = 1, 619 DYN_DT_NEEDED = 2, 620 DYN_NO_ADD_NEEDED = 4, 621 DYN_NO_NEEDED = 8 622 }; 623 624 enum notice_asneeded_action { 625 notice_as_needed, 626 notice_not_needed, 627 notice_needed 628 }; 629 630 extern bfd_boolean bfd_elf_record_link_assignment 631 (bfd *, struct bfd_link_info *, const char *, bfd_boolean, 632 bfd_boolean); 633 extern struct bfd_link_needed_list *bfd_elf_get_needed_list 634 (bfd *, struct bfd_link_info *); 635 extern bfd_boolean bfd_elf_get_bfd_needed_list 636 (bfd *, struct bfd_link_needed_list **); 637 extern bfd_boolean bfd_elf_size_dynamic_sections 638 (bfd *, const char *, const char *, const char *, const char * const *, 639 struct bfd_link_info *, struct bfd_section **, 640 struct bfd_elf_version_tree *); 641 extern bfd_boolean bfd_elf_size_dynsym_hash_dynstr 642 (bfd *, struct bfd_link_info *); 643 extern void bfd_elf_set_dt_needed_name 644 (bfd *, const char *); 645 extern const char *bfd_elf_get_dt_soname 646 (bfd *); 647 extern void bfd_elf_set_dyn_lib_class 648 (bfd *, enum dynamic_lib_link_class); 649 extern int bfd_elf_get_dyn_lib_class 650 (bfd *); 651 extern struct bfd_link_needed_list *bfd_elf_get_runpath_list 652 (bfd *, struct bfd_link_info *); 653 extern bfd_boolean bfd_elf_discard_info 654 (bfd *, struct bfd_link_info *); 655 extern unsigned int _bfd_elf_default_action_discarded 656 (struct bfd_section *); 657 658 /* Return an upper bound on the number of bytes required to store a 659 copy of ABFD's program header table entries. Return -1 if an error 660 occurs; bfd_get_error will return an appropriate code. */ 661 extern long bfd_get_elf_phdr_upper_bound 662 (bfd *abfd); 663 664 /* Copy ABFD's program header table entries to *PHDRS. The entries 665 will be stored as an array of Elf_Internal_Phdr structures, as 666 defined in include/elf/internal.h. To find out how large the 667 buffer needs to be, call bfd_get_elf_phdr_upper_bound. 668 669 Return the number of program header table entries read, or -1 if an 670 error occurs; bfd_get_error will return an appropriate code. */ 671 extern int bfd_get_elf_phdrs 672 (bfd *abfd, void *phdrs); 673 674 /* Create a new BFD as if by bfd_openr. Rather than opening a file, 675 reconstruct an ELF file by reading the segments out of remote memory 676 based on the ELF file header at EHDR_VMA and the ELF program headers it 677 points to. If not null, *LOADBASEP is filled in with the difference 678 between the VMAs from which the segments were read, and the VMAs the 679 file headers (and hence BFD's idea of each section's VMA) put them at. 680 681 The function TARGET_READ_MEMORY is called to copy LEN bytes from the 682 remote memory at target address VMA into the local buffer at MYADDR; it 683 should return zero on success or an `errno' code on failure. TEMPL must 684 be a BFD for an ELF target with the word size and byte order found in 685 the remote memory. */ 686 extern bfd *bfd_elf_bfd_from_remote_memory 687 (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep, 688 int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr, int len)); 689 690 /* Return the arch_size field of an elf bfd, or -1 if not elf. */ 691 extern int bfd_get_arch_size 692 (bfd *); 693 694 /* Return TRUE if address "naturally" sign extends, or -1 if not elf. */ 695 extern int bfd_get_sign_extend_vma 696 (bfd *); 697 698 extern struct bfd_section *_bfd_elf_tls_setup 699 (bfd *, struct bfd_link_info *); 700 701 extern void _bfd_fix_excluded_sec_syms 702 (bfd *, struct bfd_link_info *); 703 704 extern unsigned bfd_m68k_mach_to_features (int); 705 706 extern int bfd_m68k_features_to_mach (unsigned); 707 708 extern bfd_boolean bfd_m68k_elf32_create_embedded_relocs 709 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 710 char **); 711 712 extern void bfd_elf_m68k_set_target_options (struct bfd_link_info *, int); 713 714 extern bfd_boolean bfd_bfin_elf32_create_embedded_relocs 715 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 716 char **); 717 718 extern bfd_boolean bfd_cr16_elf32_create_embedded_relocs 719 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, 720 char **); 721 722 /* SunOS shared library support routines for the linker. */ 723 724 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list 725 (bfd *, struct bfd_link_info *); 726 extern bfd_boolean bfd_sunos_record_link_assignment 727 (bfd *, struct bfd_link_info *, const char *); 728 extern bfd_boolean bfd_sunos_size_dynamic_sections 729 (bfd *, struct bfd_link_info *, struct bfd_section **, 730 struct bfd_section **, struct bfd_section **); 731 732 /* Linux shared library support routines for the linker. */ 733 734 extern bfd_boolean bfd_i386linux_size_dynamic_sections 735 (bfd *, struct bfd_link_info *); 736 extern bfd_boolean bfd_m68klinux_size_dynamic_sections 737 (bfd *, struct bfd_link_info *); 738 extern bfd_boolean bfd_sparclinux_size_dynamic_sections 739 (bfd *, struct bfd_link_info *); 740 741 /* mmap hacks */ 742 743 struct _bfd_window_internal; 744 typedef struct _bfd_window_internal bfd_window_internal; 745 746 typedef struct _bfd_window 747 { 748 /* What the user asked for. */ 749 void *data; 750 bfd_size_type size; 751 /* The actual window used by BFD. Small user-requested read-only 752 regions sharing a page may share a single window into the object 753 file. Read-write versions shouldn't until I've fixed things to 754 keep track of which portions have been claimed by the 755 application; don't want to give the same region back when the 756 application wants two writable copies! */ 757 struct _bfd_window_internal *i; 758 } 759 bfd_window; 760 761 extern void bfd_init_window 762 (bfd_window *); 763 extern void bfd_free_window 764 (bfd_window *); 765 extern bfd_boolean bfd_get_file_window 766 (bfd *, file_ptr, bfd_size_type, bfd_window *, bfd_boolean); 767 768 /* XCOFF support routines for the linker. */ 769 770 extern bfd_boolean bfd_xcoff_split_import_path 771 (bfd *, const char *, const char **, const char **); 772 extern bfd_boolean bfd_xcoff_set_archive_import_path 773 (struct bfd_link_info *, bfd *, const char *); 774 extern bfd_boolean bfd_xcoff_link_record_set 775 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_size_type); 776 extern bfd_boolean bfd_xcoff_import_symbol 777 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_vma, 778 const char *, const char *, const char *, unsigned int); 779 extern bfd_boolean bfd_xcoff_export_symbol 780 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *); 781 extern bfd_boolean bfd_xcoff_link_count_reloc 782 (bfd *, struct bfd_link_info *, const char *); 783 extern bfd_boolean bfd_xcoff_record_link_assignment 784 (bfd *, struct bfd_link_info *, const char *); 785 extern bfd_boolean bfd_xcoff_size_dynamic_sections 786 (bfd *, struct bfd_link_info *, const char *, const char *, 787 unsigned long, unsigned long, unsigned long, bfd_boolean, 788 int, bfd_boolean, unsigned int, struct bfd_section **, bfd_boolean); 789 extern bfd_boolean bfd_xcoff_link_generate_rtinit 790 (bfd *, const char *, const char *, bfd_boolean); 791 792 /* XCOFF support routines for ar. */ 793 extern bfd_boolean bfd_xcoff_ar_archive_set_magic 794 (bfd *, char *); 795 796 /* Externally visible COFF routines. */ 797 798 #if defined(__STDC__) || defined(ALMOST_STDC) 799 struct internal_syment; 800 union internal_auxent; 801 #endif 802 803 extern bfd_boolean bfd_coff_get_syment 804 (bfd *, struct bfd_symbol *, struct internal_syment *); 805 806 extern bfd_boolean bfd_coff_get_auxent 807 (bfd *, struct bfd_symbol *, int, union internal_auxent *); 808 809 extern bfd_boolean bfd_coff_set_symbol_class 810 (bfd *, struct bfd_symbol *, unsigned int); 811 812 extern bfd_boolean bfd_m68k_coff_create_embedded_relocs 813 (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, char **); 814 815 /* ARM VFP11 erratum workaround support. */ 816 typedef enum 817 { 818 BFD_ARM_VFP11_FIX_DEFAULT, 819 BFD_ARM_VFP11_FIX_NONE, 820 BFD_ARM_VFP11_FIX_SCALAR, 821 BFD_ARM_VFP11_FIX_VECTOR 822 } bfd_arm_vfp11_fix; 823 824 extern void bfd_elf32_arm_init_maps 825 (bfd *); 826 827 extern void bfd_elf32_arm_set_vfp11_fix 828 (bfd *, struct bfd_link_info *); 829 830 extern void bfd_elf32_arm_set_cortex_a8_fix 831 (bfd *, struct bfd_link_info *); 832 833 extern bfd_boolean bfd_elf32_arm_vfp11_erratum_scan 834 (bfd *, struct bfd_link_info *); 835 836 extern void bfd_elf32_arm_vfp11_fix_veneer_locations 837 (bfd *, struct bfd_link_info *); 838 839 /* ARM Interworking support. Called from linker. */ 840 extern bfd_boolean bfd_arm_allocate_interworking_sections 841 (struct bfd_link_info *); 842 843 extern bfd_boolean bfd_arm_process_before_allocation 844 (bfd *, struct bfd_link_info *, int); 845 846 extern bfd_boolean bfd_arm_get_bfd_for_interworking 847 (bfd *, struct bfd_link_info *); 848 849 /* PE ARM Interworking support. Called from linker. */ 850 extern bfd_boolean bfd_arm_pe_allocate_interworking_sections 851 (struct bfd_link_info *); 852 853 extern bfd_boolean bfd_arm_pe_process_before_allocation 854 (bfd *, struct bfd_link_info *, int); 855 856 extern bfd_boolean bfd_arm_pe_get_bfd_for_interworking 857 (bfd *, struct bfd_link_info *); 858 859 /* ELF ARM Interworking support. Called from linker. */ 860 extern bfd_boolean bfd_elf32_arm_allocate_interworking_sections 861 (struct bfd_link_info *); 862 863 extern bfd_boolean bfd_elf32_arm_process_before_allocation 864 (bfd *, struct bfd_link_info *); 865 866 void bfd_elf32_arm_set_target_relocs 867 (bfd *, struct bfd_link_info *, int, char *, int, int, bfd_arm_vfp11_fix, 868 int, int, int, int); 869 870 extern bfd_boolean bfd_elf32_arm_get_bfd_for_interworking 871 (bfd *, struct bfd_link_info *); 872 873 extern bfd_boolean bfd_elf32_arm_add_glue_sections_to_bfd 874 (bfd *, struct bfd_link_info *); 875 876 /* ELF ARM mapping symbol support */ 877 #define BFD_ARM_SPECIAL_SYM_TYPE_MAP (1 << 0) 878 #define BFD_ARM_SPECIAL_SYM_TYPE_TAG (1 << 1) 879 #define BFD_ARM_SPECIAL_SYM_TYPE_OTHER (1 << 2) 880 #define BFD_ARM_SPECIAL_SYM_TYPE_ANY (~0) 881 extern bfd_boolean bfd_is_arm_special_symbol_name 882 (const char * name, int type); 883 884 extern void bfd_elf32_arm_set_byteswap_code (struct bfd_link_info *, int); 885 886 /* ARM Note section processing. */ 887 extern bfd_boolean bfd_arm_merge_machines 888 (bfd *, bfd *); 889 890 extern bfd_boolean bfd_arm_update_notes 891 (bfd *, const char *); 892 893 extern unsigned int bfd_arm_get_mach_from_notes 894 (bfd *, const char *); 895 896 /* ARM stub generation support. Called from the linker. */ 897 extern int elf32_arm_setup_section_lists 898 (bfd *, struct bfd_link_info *); 899 extern void elf32_arm_next_input_section 900 (struct bfd_link_info *, struct bfd_section *); 901 extern bfd_boolean elf32_arm_size_stubs 902 (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, 903 struct bfd_section * (*) (const char *, struct bfd_section *), void (*) (void)); 904 extern bfd_boolean elf32_arm_build_stubs 905 (struct bfd_link_info *); 906 907 /* ARM unwind section editing support. */ 908 extern bfd_boolean elf32_arm_fix_exidx_coverage 909 (struct bfd_section **, unsigned int, struct bfd_link_info *); 910 911 /* TI COFF load page support. */ 912 extern void bfd_ticoff_set_section_load_page 913 (struct bfd_section *, int); 914 915 extern int bfd_ticoff_get_section_load_page 916 (struct bfd_section *); 917 918 /* H8/300 functions. */ 919 extern bfd_vma bfd_h8300_pad_address 920 (bfd *, bfd_vma); 921 922 /* IA64 Itanium code generation. Called from linker. */ 923 extern void bfd_elf32_ia64_after_parse 924 (int); 925 926 extern void bfd_elf64_ia64_after_parse 927 (int); 928 929 /* This structure is used for a comdat section, as in PE. A comdat 930 section is associated with a particular symbol. When the linker 931 sees a comdat section, it keeps only one of the sections with a 932 given name and associated with a given symbol. */ 933 934 struct coff_comdat_info 935 { 936 /* The name of the symbol associated with a comdat section. */ 937 const char *name; 938 939 /* The local symbol table index of the symbol associated with a 940 comdat section. This is only meaningful to the object file format 941 specific code; it is not an index into the list returned by 942 bfd_canonicalize_symtab. */ 943 long symbol; 944 }; 945 946 extern struct coff_comdat_info *bfd_coff_get_comdat_section 947 (bfd *, struct bfd_section *); 948 949