bfd/bfd-in.h

   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
   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 2 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 /* The word size used by BFD on the host.  This may be 64 with a 32
  47    bit target if the host is 64 bit, or if other 64 bit targets have
  48    been selected with --enable-targets, or if --enable-64-bit-bfd.  */
  49 #define BFD_ARCH_SIZE @wordsize@
  50
  51 /* The word size of the default bfd target.  */
  52 #define BFD_DEFAULT_TARGET_SIZE @bfd_default_target_size@
  53
  54 #define BFD_HOST_64BIT_LONG @BFD_HOST_64BIT_LONG@
  55 #define BFD_HOST_LONG_LONG @BFD_HOST_LONG_LONG@
  56 #if @BFD_HOST_64_BIT_DEFINED@
  57 #define BFD_HOST_64_BIT @BFD_HOST_64_BIT@
  58 #define BFD_HOST_U_64_BIT @BFD_HOST_U_64_BIT@
  59 typedef BFD_HOST_64_BIT bfd_int64_t;
  60 typedef BFD_HOST_U_64_BIT bfd_uint64_t;
  61 #endif
  62
  63 #if BFD_ARCH_SIZE >= 64
  64 #define BFD64
  65 #endif
  66
  67 #ifndef INLINE
  68 #if __GNUC__ >= 2
  69 #define INLINE __inline__
  70 #else
  71 #define INLINE
  72 #endif
  73 #endif
  74
  75 /* Forward declaration.  */
  76 typedef struct bfd bfd;
  77
  78 /* Boolean type used in bfd.  Too many systems define their own
  79    versions of "boolean" for us to safely typedef a "boolean" of
  80    our own.  Using an enum for "bfd_boolean" has its own set of
  81    problems, with strange looking casts required to avoid warnings
  82    on some older compilers.  Thus we just use an int.
  83
  84    General rule: Functions which are bfd_boolean return TRUE on
  85    success and FALSE on failure (unless they're a predicate).  */
  86
  87 typedef int bfd_boolean;
  88 #undef FALSE
  89 #undef TRUE
  90 #define FALSE 0
  91 #define TRUE 1
  92
  93 #ifdef BFD64
  94
  95 #ifndef BFD_HOST_64_BIT
  96  #error No 64 bit integer type available
  97 #endif /* ! defined (BFD_HOST_64_BIT) */
  98
  99 typedef BFD_HOST_U_64_BIT bfd_vma;
 100 typedef BFD_HOST_64_BIT bfd_signed_vma;
 101 typedef BFD_HOST_U_64_BIT bfd_size_type;
 102 typedef BFD_HOST_U_64_BIT symvalue;
 103
 104 #ifndef fprintf_vma
 105 #if BFD_HOST_64BIT_LONG
 106 #define sprintf_vma(s,x) sprintf (s, "%016lx", x)
 107 #define fprintf_vma(f,x) fprintf (f, "%016lx", x)
 108 #else
 109 #define _bfd_int64_low(x) ((unsigned long) (((x) & 0xffffffff)))
 110 #define _bfd_int64_high(x) ((unsigned long) (((x) >> 32) & 0xffffffff))
 111 #define fprintf_vma(s,x) \
 112   fprintf ((s), "%08lx%08lx", _bfd_int64_high (x), _bfd_int64_low (x))
 113 #define sprintf_vma(s,x) \
 114   sprintf ((s), "%08lx%08lx", _bfd_int64_high (x), _bfd_int64_low (x))
 115 #endif
 116 #endif
 117
 118 #else /* not BFD64  */
 119
 120 /* Represent a target address.  Also used as a generic unsigned type
 121    which is guaranteed to be big enough to hold any arithmetic types
 122    we need to deal with.  */
 123 typedef unsigned long bfd_vma;
 124
 125 /* A generic signed type which is guaranteed to be big enough to hold any
 126    arithmetic types we need to deal with.  Can be assumed to be compatible
 127    with bfd_vma in the same way that signed and unsigned ints are compatible
 128    (as parameters, in assignment, etc).  */
 129 typedef long bfd_signed_vma;
 130
 131 typedef unsigned long symvalue;
 132 typedef unsigned long bfd_size_type;
 133
 134 /* Print a bfd_vma x on stream s.  */
 135 #define fprintf_vma(s,x) fprintf (s, "%08lx", x)
 136 #define sprintf_vma(s,x) sprintf (s, "%08lx", x)
 137
 138 #endif /* not BFD64  */
 139
 140 #define HALF_BFD_SIZE_TYPE \
 141   (((bfd_size_type) 1) << (8 * sizeof (bfd_size_type) / 2))
 142
 143 #ifndef BFD_HOST_64_BIT
 144 /* Fall back on a 32 bit type.  The idea is to make these types always
 145    available for function return types, but in the case that
 146    BFD_HOST_64_BIT is undefined such a function should abort or
 147    otherwise signal an error.  */
 148 typedef bfd_signed_vma bfd_int64_t;
 149 typedef bfd_vma bfd_uint64_t;
 150 #endif
 151
 152 /* An offset into a file.  BFD always uses the largest possible offset
 153    based on the build time availability of fseek, fseeko, or fseeko64.  */
 154 typedef @bfd_file_ptr@ file_ptr;
 155 typedef unsigned @bfd_file_ptr@ ufile_ptr;
 156
 157 extern void bfd_sprintf_vma (bfd *, char *, bfd_vma);
 158 extern void bfd_fprintf_vma (bfd *, void *, bfd_vma);
 159
 160 #define printf_vma(x) fprintf_vma(stdout,x)
 161 #define bfd_printf_vma(abfd,x) bfd_fprintf_vma (abfd,stdout,x)
 162
 163 typedef unsigned int flagword;  /* 32 bits of flags */
 164 typedef unsigned char bfd_byte;
 165 \f
 166 /* File formats.  */
 167
 168 typedef enum bfd_format
 169 {
 170   bfd_unknown = 0,      /* File format is unknown.  */
 171   bfd_object,           /* Linker/assembler/compiler output.  */
 172   bfd_archive,          /* Object archive file.  */
 173   bfd_core,             /* Core dump.  */
 174   bfd_type_end          /* Marks the end; don't use it!  */
 175 }
 176 bfd_format;
 177
 178 /* Values that may appear in the flags field of a BFD.  These also
 179    appear in the object_flags field of the bfd_target structure, where
 180    they indicate the set of flags used by that backend (not all flags
 181    are meaningful for all object file formats) (FIXME: at the moment,
 182    the object_flags values have mostly just been copied from backend
 183    to another, and are not necessarily correct).  */
 184
 185 /* No flags.  */
 186 #define BFD_NO_FLAGS    0x00
 187
 188 /* BFD contains relocation entries.  */
 189 #define HAS_RELOC       0x01
 190
 191 /* BFD is directly executable.  */
 192 #define EXEC_P          0x02
 193
 194 /* BFD has line number information (basically used for F_LNNO in a
 195    COFF header).  */
 196 #define HAS_LINENO      0x04
 197
 198 /* BFD has debugging information.  */
 199 #define HAS_DEBUG       0x08
 200
 201 /* BFD has symbols.  */
 202 #define HAS_SYMS        0x10
 203
 204 /* BFD has local symbols (basically used for F_LSYMS in a COFF
 205    header).  */
 206 #define HAS_LOCALS      0x20
 207
 208 /* BFD is a dynamic object.  */
 209 #define DYNAMIC         0x40
 210
 211 /* Text section is write protected (if D_PAGED is not set, this is
 212    like an a.out NMAGIC file) (the linker sets this by default, but
 213    clears it for -r or -N).  */
 214 #define WP_TEXT         0x80
 215
 216 /* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
 217    linker sets this by default, but clears it for -r or -n or -N).  */
 218 #define D_PAGED         0x100
 219
 220 /* BFD is relaxable (this means that bfd_relax_section may be able to
 221    do something) (sometimes bfd_relax_section can do something even if
 222    this is not set).  */
 223 #define BFD_IS_RELAXABLE 0x200
 224
 225 /* This may be set before writing out a BFD to request using a
 226    traditional format.  For example, this is used to request that when
 227    writing out an a.out object the symbols not be hashed to eliminate
 228    duplicates.  */
 229 #define BFD_TRADITIONAL_FORMAT 0x400
 230
 231 /* This flag indicates that the BFD contents are actually cached in
 232    memory.  If this is set, iostream points to a bfd_in_memory struct.  */
 233 #define BFD_IN_MEMORY 0x800
 234
 235 /* The sections in this BFD specify a memory page.  */
 236 #define HAS_LOAD_PAGE 0x1000
 237
 238 /* This BFD has been created by the linker and doesn't correspond
 239    to any input file.  */
 240 #define BFD_LINKER_CREATED 0x2000
 241 \f
 242 /* Symbols and relocation.  */
 243
 244 /* A count of carsyms (canonical archive symbols).  */
 245 typedef unsigned long symindex;
 246
 247 /* How to perform a relocation.  */
 248 typedef const struct reloc_howto_struct reloc_howto_type;
 249
 250 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
 251
 252 /* General purpose part of a symbol X;
 253    target specific parts are in libcoff.h, libaout.h, etc.  */
 254
 255 #define bfd_get_section(x) ((x)->section)
 256 #define bfd_get_output_section(x) ((x)->section->output_section)
 257 #define bfd_set_section(x,y) ((x)->section) = (y)
 258 #define bfd_asymbol_base(x) ((x)->section->vma)
 259 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
 260 #define bfd_asymbol_name(x) ((x)->name)
 261 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
 262 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
 263 #define bfd_asymbol_flavour(x) (bfd_asymbol_bfd(x)->xvec->flavour)
 264
 265 /* A canonical archive symbol.  */
 266 /* This is a type pun with struct ranlib on purpose!  */
 267 typedef struct carsym
 268 {
 269   char *name;
 270   file_ptr file_offset; /* Look here to find the file.  */
 271 }
 272 carsym;                 /* To make these you call a carsymogen.  */
 273
 274 /* Used in generating armaps (archive tables of contents).
 275    Perhaps just a forward definition would do?  */
 276 struct orl                      /* Output ranlib.  */
 277 {
 278   char **name;          /* Symbol name.  */
 279   union
 280   {
 281     file_ptr pos;
 282     bfd *abfd;
 283   } u;                  /* bfd* or file position.  */
 284   int namidx;           /* Index into string table.  */
 285 };
 286 \f
 287 /* Linenumber stuff.  */
 288 typedef struct lineno_cache_entry
 289 {
 290   unsigned int line_number;     /* Linenumber from start of function.  */
 291   union
 292   {
 293     struct bfd_symbol *sym;     /* Function name.  */
 294     bfd_vma offset;                     /* Offset into section.  */
 295   } u;
 296 }
 297 alent;
 298 \f
 299 /* Object and core file sections.  */
 300
 301 #define align_power(addr, align)        \
 302   (((addr) + ((bfd_vma) 1 << (align)) - 1) & ((bfd_vma) -1 << (align)))
 303
 304 typedef struct bfd_section *sec_ptr;
 305
 306 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0)
 307 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0)
 308 #define bfd_get_section_lma(bfd, ptr) ((ptr)->lma + 0)
 309 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0)
 310 #define bfd_section_name(bfd, ptr) ((ptr)->name)
 311 #define bfd_section_size(bfd, ptr) ((ptr)->size)
 312 #define bfd_get_section_size(ptr) ((ptr)->size)
 313 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
 314 #define bfd_section_lma(bfd, ptr) ((ptr)->lma)
 315 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
 316 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
 317 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
 318
 319 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
 320
 321 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma = (val)), ((ptr)->user_set_vma = TRUE), TRUE)
 322 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),TRUE)
 323 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),TRUE)
 324 /* Find the address one past the end of SEC.  */
 325 #define bfd_get_section_limit(bfd, sec) \
 326   (((sec)->rawsize ? (sec)->rawsize : (sec)->size) \
 327    / bfd_octets_per_byte (bfd))
 328
 329 typedef struct stat stat_type;
 330 \f
 331 typedef enum bfd_print_symbol
 332 {
 333   bfd_print_symbol_name,
 334   bfd_print_symbol_more,
 335   bfd_print_symbol_all
 336 } bfd_print_symbol_type;
 337
 338 /* Information about a symbol that nm needs.  */
 339
 340 typedef struct _symbol_info
 341 {
 342   symvalue value;
 343   char type;
 344   const char *name;            /* Symbol name.  */
 345   unsigned char stab_type;     /* Stab type.  */
 346   char stab_other;             /* Stab other.  */
 347   short stab_desc;             /* Stab desc.  */
 348   const char *stab_name;       /* String for stab type.  */
 349 } symbol_info;
 350
 351 /* Get the name of a stabs type code.  */
 352
 353 extern const char *bfd_get_stab_name (int);
 354 \f
 355 /* Hash table routines.  There is no way to free up a hash table.  */
 356
 357 /* An element in the hash table.  Most uses will actually use a larger
 358    structure, and an instance of this will be the first field.  */
 359
 360 struct bfd_hash_entry
 361 {
 362   /* Next entry for this hash code.  */
 363   struct bfd_hash_entry *next;
 364   /* String being hashed.  */
 365   const char *string;
 366   /* Hash code.  This is the full hash code, not the index into the
 367      table.  */
 368   unsigned long hash;
 369 };
 370
 371 /* A hash table.  */
 372
 373 struct bfd_hash_table
 374 {
 375   /* The hash array.  */
 376   struct bfd_hash_entry **table;
 377   /* The number of slots in the hash table.  */
 378   unsigned int size;
 379   /* The size of elements.  */
 380   unsigned int entsize;
 381   /* A function used to create new elements in the hash table.  The
 382      first entry is itself a pointer to an element.  When this
 383      function is first invoked, this pointer will be NULL.  However,
 384      having the pointer permits a hierarchy of method functions to be
 385      built each of which calls the function in the superclass.  Thus
 386      each function should be written to allocate a new block of memory
 387      only if the argument is NULL.  */
 388   struct bfd_hash_entry *(*newfunc)
 389     (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
 390    /* An objalloc for this hash table.  This is a struct objalloc *,
 391      but we use void * to avoid requiring the inclusion of objalloc.h.  */
 392   void *memory;
 393 };
 394
 395 /* Initialize a hash table.  */
 396 extern bfd_boolean bfd_hash_table_init
 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);
 402
 403 /* Initialize a hash table specifying a size.  */
 404 extern bfd_boolean bfd_hash_table_init_n
 405   (struct bfd_hash_table *,
 406    struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 407                                struct bfd_hash_table *,
 408                                const char *),
 409    unsigned int, unsigned int);
 410
 411 /* Free up a hash table.  */
 412 extern void bfd_hash_table_free
 413   (struct bfd_hash_table *);
 414
 415 /* Look up a string in a hash table.  If CREATE is TRUE, a new entry
 416    will be created for this string if one does not already exist.  The
 417    COPY argument must be TRUE if this routine should copy the string
 418    into newly allocated memory when adding an entry.  */
 419 extern struct bfd_hash_entry *bfd_hash_lookup
 420   (struct bfd_hash_table *, const char *, bfd_boolean create,
 421    bfd_boolean copy);
 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 void bfd_hash_set_default_size (bfd_size_type);
 448
 449 /* This structure is used to keep track of stabs in sections
 450    information while linking.  */
 451
 452 struct stab_info
 453 {
 454   /* A hash table used to hold stabs strings.  */
 455   struct bfd_strtab_hash *strings;
 456   /* The header file hash table.  */
 457   struct bfd_hash_table includes;
 458   /* The first .stabstr section.  */
 459   struct bfd_section *stabstr;
 460 };
 461
 462 #define COFF_SWAP_TABLE (void *) &bfd_coff_std_swap_table
 463
 464 /* User program access to BFD facilities.  */
 465
 466 /* Direct I/O routines, for programs which know more about the object
 467    file than BFD does.  Use higher level routines if possible.  */
 468
 469 extern bfd_size_type bfd_bread (void *, bfd_size_type, bfd *);
 470 extern bfd_size_type bfd_bwrite (const void *, bfd_size_type, bfd *);
 471 extern int bfd_seek (bfd *, file_ptr, int);
 472 extern file_ptr bfd_tell (bfd *);
 473 extern int bfd_flush (bfd *);
 474 extern int bfd_stat (bfd *, struct stat *);
 475
 476 /* Deprecated old routines.  */
 477 #if __GNUC__
 478 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD)                            \
 479   (warn_deprecated ("bfd_read", __FILE__, __LINE__, __FUNCTION__),      \
 480    bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 481 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD)                           \
 482   (warn_deprecated ("bfd_write", __FILE__, __LINE__, __FUNCTION__),     \
 483    bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 484 #else
 485 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD)                            \
 486   (warn_deprecated ("bfd_read", (const char *) 0, 0, (const char *) 0), \
 487    bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 488 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD)                           \
 489   (warn_deprecated ("bfd_write", (const char *) 0, 0, (const char *) 0),\
 490    bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 491 #endif
 492 extern void warn_deprecated (const char *, const char *, int, const char *);
 493
 494 /* Cast from const char * to char * so that caller can assign to
 495    a char * without a warning.  */
 496 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
 497 #define bfd_get_cacheable(abfd) ((abfd)->cacheable)
 498 #define bfd_get_format(abfd) ((abfd)->format)
 499 #define bfd_get_target(abfd) ((abfd)->xvec->name)
 500 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
 501 #define bfd_family_coff(abfd) \
 502   (bfd_get_flavour (abfd) == bfd_target_coff_flavour || \
 503    bfd_get_flavour (abfd) == bfd_target_xcoff_flavour)
 504 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG)
 505 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE)
 506 #define bfd_header_big_endian(abfd) \
 507   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG)
 508 #define bfd_header_little_endian(abfd) \
 509   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE)
 510 #define bfd_get_file_flags(abfd) ((abfd)->flags)
 511 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
 512 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
 513 #define bfd_my_archive(abfd) ((abfd)->my_archive)
 514 #define bfd_has_map(abfd) ((abfd)->has_armap)
 515
 516 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
 517 #define bfd_usrdata(abfd) ((abfd)->usrdata)
 518
 519 #define bfd_get_start_address(abfd) ((abfd)->start_address)
 520 #define bfd_get_symcount(abfd) ((abfd)->symcount)
 521 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
 522 #define bfd_count_sections(abfd) ((abfd)->section_count)
 523
 524 #define bfd_get_dynamic_symcount(abfd) ((abfd)->dynsymcount)
 525
 526 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
 527
 528 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = bool), TRUE)
 529
 530 extern bfd_boolean bfd_cache_close
 531   (bfd *abfd);
 532 /* NB: This declaration should match the autogenerated one in libbfd.h.  */
 533
 534 extern bfd_boolean bfd_cache_close_all (void);
 535
 536 extern bfd_boolean bfd_record_phdr
 537   (bfd *, unsigned long, bfd_boolean, flagword, bfd_boolean, bfd_vma,
 538    bfd_boolean, bfd_boolean, unsigned int, struct bfd_section **);
 539
 540 /* Byte swapping routines.  */
 541
 542 bfd_uint64_t bfd_getb64 (const void *);
 543 bfd_uint64_t bfd_getl64 (const void *);
 544 bfd_int64_t bfd_getb_signed_64 (const void *);
 545 bfd_int64_t bfd_getl_signed_64 (const void *);
 546 bfd_vma bfd_getb32 (const void *);
 547 bfd_vma bfd_getl32 (const void *);
 548 bfd_signed_vma bfd_getb_signed_32 (const void *);
 549 bfd_signed_vma bfd_getl_signed_32 (const void *);
 550 bfd_vma bfd_getb16 (const void *);
 551 bfd_vma bfd_getl16 (const void *);
 552 bfd_signed_vma bfd_getb_signed_16 (const void *);
 553 bfd_signed_vma bfd_getl_signed_16 (const void *);
 554 void bfd_putb64 (bfd_uint64_t, void *);
 555 void bfd_putl64 (bfd_uint64_t, void *);
 556 void bfd_putb32 (bfd_vma, void *);
 557 void bfd_putl32 (bfd_vma, void *);
 558 void bfd_putb16 (bfd_vma, void *);
 559 void bfd_putl16 (bfd_vma, void *);
 560
 561 /* Byte swapping routines which take size and endiannes as arguments.  */
 562
 563 bfd_uint64_t bfd_get_bits (const void *, int, bfd_boolean);
 564 void bfd_put_bits (bfd_uint64_t, void *, int, bfd_boolean);
 565
 566 extern bfd_boolean bfd_section_already_linked_table_init (void);
 567 extern void bfd_section_already_linked_table_free (void);
 568 \f
 569 /* Externally visible ECOFF routines.  */
 570
 571 #if defined(__STDC__) || defined(ALMOST_STDC)
 572 struct ecoff_debug_info;
 573 struct ecoff_debug_swap;
 574 struct ecoff_extr;
 575 struct bfd_symbol;
 576 struct bfd_link_info;
 577 struct bfd_link_hash_entry;
 578 struct bfd_elf_version_tree;
 579 #endif
 580 extern bfd_vma bfd_ecoff_get_gp_value
 581   (bfd * abfd);
 582 extern bfd_boolean bfd_ecoff_set_gp_value
 583   (bfd *abfd, bfd_vma gp_value);
 584 extern bfd_boolean bfd_ecoff_set_regmasks
 585   (bfd *abfd, unsigned long gprmask, unsigned long fprmask,
 586    unsigned long *cprmask);
 587 extern void *bfd_ecoff_debug_init
 588   (bfd *output_bfd, struct ecoff_debug_info *output_debug,
 589    const struct ecoff_debug_swap *output_swap, struct bfd_link_info *);
 590 extern void bfd_ecoff_debug_free
 591   (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 592    const struct ecoff_debug_swap *output_swap, struct bfd_link_info *);
 593 extern bfd_boolean bfd_ecoff_debug_accumulate
 594   (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 595    const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 596    struct ecoff_debug_info *input_debug,
 597    const struct ecoff_debug_swap *input_swap, struct bfd_link_info *);
 598 extern bfd_boolean bfd_ecoff_debug_accumulate_other
 599   (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 600    const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 601    struct bfd_link_info *);
 602 extern bfd_boolean bfd_ecoff_debug_externals
 603   (bfd *abfd, struct ecoff_debug_info *debug,
 604    const struct ecoff_debug_swap *swap, bfd_boolean relocatable,
 605    bfd_boolean (*get_extr) (struct bfd_symbol *, struct ecoff_extr *),
 606    void (*set_index) (struct bfd_symbol *, bfd_size_type));
 607 extern bfd_boolean bfd_ecoff_debug_one_external
 608   (bfd *abfd, struct ecoff_debug_info *debug,
 609    const struct ecoff_debug_swap *swap, const char *name,
 610    struct ecoff_extr *esym);
 611 extern bfd_size_type bfd_ecoff_debug_size
 612   (bfd *abfd, struct ecoff_debug_info *debug,
 613    const struct ecoff_debug_swap *swap);
 614 extern bfd_boolean bfd_ecoff_write_debug
 615   (bfd *abfd, struct ecoff_debug_info *debug,
 616    const struct ecoff_debug_swap *swap, file_ptr where);
 617 extern bfd_boolean bfd_ecoff_write_accumulated_debug
 618   (void *handle, bfd *abfd, struct ecoff_debug_info *debug,
 619    const struct ecoff_debug_swap *swap,
 620    struct bfd_link_info *info, file_ptr where);
 621
 622 /* Externally visible ELF routines.  */
 623
 624 struct bfd_link_needed_list
 625 {
 626   struct bfd_link_needed_list *next;
 627   bfd *by;
 628   const char *name;
 629 };
 630
 631 enum dynamic_lib_link_class {
 632   DYN_NORMAL = 0,
 633   DYN_AS_NEEDED = 1,
 634   DYN_DT_NEEDED = 2,
 635   DYN_NO_ADD_NEEDED = 4,
 636   DYN_NO_NEEDED = 8
 637 };
 638
 639 extern bfd_boolean bfd_elf_record_link_assignment
 640   (bfd *, struct bfd_link_info *, const char *, bfd_boolean,
 641    bfd_boolean);
 642 extern struct bfd_link_needed_list *bfd_elf_get_needed_list
 643   (bfd *, struct bfd_link_info *);
 644 extern bfd_boolean bfd_elf_get_bfd_needed_list
 645   (bfd *, struct bfd_link_needed_list **);
 646 extern bfd_boolean bfd_elf_size_dynamic_sections
 647   (bfd *, const char *, const char *, const char *, const char * const *,
 648    struct bfd_link_info *, struct bfd_section **,
 649    struct bfd_elf_version_tree *);
 650 extern bfd_boolean bfd_elf_size_dynsym_hash_dynstr
 651   (bfd *, struct bfd_link_info *);
 652 extern void bfd_elf_set_dt_needed_name
 653   (bfd *, const char *);
 654 extern const char *bfd_elf_get_dt_soname
 655   (bfd *);
 656 extern void bfd_elf_set_dyn_lib_class
 657   (bfd *, int);
 658 extern int bfd_elf_get_dyn_lib_class
 659   (bfd *);
 660 extern struct bfd_link_needed_list *bfd_elf_get_runpath_list
 661   (bfd *, struct bfd_link_info *);
 662 extern bfd_boolean bfd_elf_discard_info
 663   (bfd *, struct bfd_link_info *);
 664 extern unsigned int _bfd_elf_default_action_discarded
 665   (struct bfd_section *);
 666
 667 /* Return an upper bound on the number of bytes required to store a
 668    copy of ABFD's program header table entries.  Return -1 if an error
 669    occurs; bfd_get_error will return an appropriate code.  */
 670 extern long bfd_get_elf_phdr_upper_bound
 671   (bfd *abfd);
 672
 673 /* Copy ABFD's program header table entries to *PHDRS.  The entries
 674    will be stored as an array of Elf_Internal_Phdr structures, as
 675    defined in include/elf/internal.h.  To find out how large the
 676    buffer needs to be, call bfd_get_elf_phdr_upper_bound.
 677
 678    Return the number of program header table entries read, or -1 if an
 679    error occurs; bfd_get_error will return an appropriate code.  */
 680 extern int bfd_get_elf_phdrs
 681   (bfd *abfd, void *phdrs);
 682
 683 /* Create a new BFD as if by bfd_openr.  Rather than opening a file,
 684    reconstruct an ELF file by reading the segments out of remote memory
 685    based on the ELF file header at EHDR_VMA and the ELF program headers it
 686    points to.  If not null, *LOADBASEP is filled in with the difference
 687    between the VMAs from which the segments were read, and the VMAs the
 688    file headers (and hence BFD's idea of each section's VMA) put them at.
 689
 690    The function TARGET_READ_MEMORY is called to copy LEN bytes from the
 691    remote memory at target address VMA into the local buffer at MYADDR; it
 692    should return zero on success or an `errno' code on failure.  TEMPL must
 693    be a BFD for an ELF target with the word size and byte order found in
 694    the remote memory.  */
 695 extern bfd *bfd_elf_bfd_from_remote_memory
 696   (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep,
 697    int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr, int len));
 698
 699 /* Return the arch_size field of an elf bfd, or -1 if not elf.  */
 700 extern int bfd_get_arch_size
 701   (bfd *);
 702
 703 /* Return TRUE if address "naturally" sign extends, or -1 if not elf.  */
 704 extern int bfd_get_sign_extend_vma
 705   (bfd *);
 706
 707 extern struct bfd_section *_bfd_elf_tls_setup
 708   (bfd *, struct bfd_link_info *);
 709
 710 extern void _bfd_fix_excluded_sec_syms
 711   (bfd *, struct bfd_link_info *);
 712
 713 extern unsigned bfd_m68k_mach_to_features (int);
 714
 715 extern int bfd_m68k_features_to_mach (unsigned);
 716
 717 extern bfd_boolean bfd_m68k_elf32_create_embedded_relocs
 718   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *,
 719    char **);
 720
 721 extern bfd_boolean bfd_bfin_elf32_create_embedded_relocs
 722   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *,
 723    char **);
 724
 725 /* SunOS shared library support routines for the linker.  */
 726
 727 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list
 728   (bfd *, struct bfd_link_info *);
 729 extern bfd_boolean bfd_sunos_record_link_assignment
 730   (bfd *, struct bfd_link_info *, const char *);
 731 extern bfd_boolean bfd_sunos_size_dynamic_sections
 732   (bfd *, struct bfd_link_info *, struct bfd_section **,
 733    struct bfd_section **, struct bfd_section **);
 734
 735 /* Linux shared library support routines for the linker.  */
 736
 737 extern bfd_boolean bfd_i386linux_size_dynamic_sections
 738   (bfd *, struct bfd_link_info *);
 739 extern bfd_boolean bfd_m68klinux_size_dynamic_sections
 740   (bfd *, struct bfd_link_info *);
 741 extern bfd_boolean bfd_sparclinux_size_dynamic_sections
 742   (bfd *, struct bfd_link_info *);
 743
 744 /* mmap hacks */
 745
 746 struct _bfd_window_internal;
 747 typedef struct _bfd_window_internal bfd_window_internal;
 748
 749 typedef struct _bfd_window
 750 {
 751   /* What the user asked for.  */
 752   void *data;
 753   bfd_size_type size;
 754   /* The actual window used by BFD.  Small user-requested read-only
 755      regions sharing a page may share a single window into the object
 756      file.  Read-write versions shouldn't until I've fixed things to
 757      keep track of which portions have been claimed by the
 758      application; don't want to give the same region back when the
 759      application wants two writable copies!  */
 760   struct _bfd_window_internal *i;
 761 }
 762 bfd_window;
 763
 764 extern void bfd_init_window
 765   (bfd_window *);
 766 extern void bfd_free_window
 767   (bfd_window *);
 768 extern bfd_boolean bfd_get_file_window
 769   (bfd *, file_ptr, bfd_size_type, bfd_window *, bfd_boolean);
 770
 771 /* XCOFF support routines for the linker.  */
 772
 773 extern bfd_boolean bfd_xcoff_link_record_set
 774   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_size_type);
 775 extern bfd_boolean bfd_xcoff_import_symbol
 776   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_vma,
 777    const char *, const char *, const char *, unsigned int);
 778 extern bfd_boolean bfd_xcoff_export_symbol
 779   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *);
 780 extern bfd_boolean bfd_xcoff_link_count_reloc
 781   (bfd *, struct bfd_link_info *, const char *);
 782 extern bfd_boolean bfd_xcoff_record_link_assignment
 783   (bfd *, struct bfd_link_info *, const char *);
 784 extern bfd_boolean bfd_xcoff_size_dynamic_sections
 785   (bfd *, struct bfd_link_info *, const char *, const char *,
 786    unsigned long, unsigned long, unsigned long, bfd_boolean,
 787    int, bfd_boolean, bfd_boolean, struct bfd_section **, bfd_boolean);
 788 extern bfd_boolean bfd_xcoff_link_generate_rtinit
 789   (bfd *, const char *, const char *, bfd_boolean);
 790
 791 /* XCOFF support routines for ar.  */
 792 extern bfd_boolean bfd_xcoff_ar_archive_set_magic
 793   (bfd *, char *);
 794
 795 /* Externally visible COFF routines.  */
 796
 797 #if defined(__STDC__) || defined(ALMOST_STDC)
 798 struct internal_syment;
 799 union internal_auxent;
 800 #endif
 801
 802 extern bfd_boolean bfd_coff_get_syment
 803   (bfd *, struct bfd_symbol *, struct internal_syment *);
 804
 805 extern bfd_boolean bfd_coff_get_auxent
 806   (bfd *, struct bfd_symbol *, int, union internal_auxent *);
 807
 808 extern bfd_boolean bfd_coff_set_symbol_class
 809   (bfd *, struct bfd_symbol *, unsigned int);
 810
 811 extern bfd_boolean bfd_m68k_coff_create_embedded_relocs
 812   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, char **);
 813
 814 /* ARM Interworking support.  Called from linker.  */
 815 extern bfd_boolean bfd_arm_allocate_interworking_sections
 816   (struct bfd_link_info *);
 817
 818 extern bfd_boolean bfd_arm_process_before_allocation
 819   (bfd *, struct bfd_link_info *, int);
 820
 821 extern bfd_boolean bfd_arm_get_bfd_for_interworking
 822   (bfd *, struct bfd_link_info *);
 823
 824 /* PE ARM Interworking support.  Called from linker.  */
 825 extern bfd_boolean bfd_arm_pe_allocate_interworking_sections
 826   (struct bfd_link_info *);
 827
 828 extern bfd_boolean bfd_arm_pe_process_before_allocation
 829   (bfd *, struct bfd_link_info *, int);
 830
 831 extern bfd_boolean bfd_arm_pe_get_bfd_for_interworking
 832   (bfd *, struct bfd_link_info *);
 833
 834 /* ELF ARM Interworking support.  Called from linker.  */
 835 extern bfd_boolean bfd_elf32_arm_allocate_interworking_sections
 836   (struct bfd_link_info *);
 837
 838 extern bfd_boolean bfd_elf32_arm_process_before_allocation
 839   (bfd *, struct bfd_link_info *, int);
 840
 841 void bfd_elf32_arm_set_target_relocs
 842   (struct bfd_link_info *, int, char *, int, int);
 843
 844 extern bfd_boolean bfd_elf32_arm_get_bfd_for_interworking
 845   (bfd *, struct bfd_link_info *);
 846
 847 extern bfd_boolean bfd_elf32_arm_add_glue_sections_to_bfd
 848   (bfd *, struct bfd_link_info *);
 849
 850 /* ELF ARM mapping symbol support */
 851 extern bfd_boolean bfd_is_arm_mapping_symbol_name
 852   (const char * name);
 853
 854 /* ARM Note section processing.  */
 855 extern bfd_boolean bfd_arm_merge_machines
 856   (bfd *, bfd *);
 857
 858 extern bfd_boolean bfd_arm_update_notes
 859   (bfd *, const char *);
 860
 861 extern unsigned int bfd_arm_get_mach_from_notes
 862   (bfd *, const char *);
 863
 864 /* TI COFF load page support.  */
 865 extern void bfd_ticoff_set_section_load_page
 866   (struct bfd_section *, int);
 867
 868 extern int bfd_ticoff_get_section_load_page
 869   (struct bfd_section *);
 870
 871 /* H8/300 functions.  */
 872 extern bfd_vma bfd_h8300_pad_address
 873   (bfd *, bfd_vma);
 874
 875 /* IA64 Itanium code generation.  Called from linker.  */
 876 extern void bfd_elf32_ia64_after_parse
 877   (int);
 878
 879 extern void bfd_elf64_ia64_after_parse
 880   (int);
 881
 882 /* This structure is used for a comdat section, as in PE.  A comdat
 883    section is associated with a particular symbol.  When the linker
 884    sees a comdat section, it keeps only one of the sections with a
 885    given name and associated with a given symbol.  */
 886
 887 struct coff_comdat_info
 888 {
 889   /* The name of the symbol associated with a comdat section.  */
 890   const char *name;
 891
 892   /* The local symbol table index of the symbol associated with a
 893      comdat section.  This is only meaningful to the object file format
 894      specific code; it is not an index into the list returned by
 895      bfd_canonicalize_symtab.  */
 896   long symbol;
 897 };
 898
 899 extern struct coff_comdat_info *bfd_coff_get_comdat_section
 900   (bfd *, struct bfd_section *);
 901