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 Free Software Foundation, Inc.
   5
   6    Contributed by Cygnus Support.
   7
   8    This file is part of BFD, the Binary File Descriptor library.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  23
  24 #ifndef __BFD_H_SEEN__
  25 #define __BFD_H_SEEN__
  26
  27 #ifdef __cplusplus
  28 extern "C" {
  29 #endif
  30
  31 #include "ansidecl.h"
  32 #include "symcat.h"
  33 #if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
  34 #ifndef SABER
  35 /* This hack is to avoid a problem with some strict ANSI C preprocessors.
  36    The problem is, "32_" is not a valid preprocessing token, and we don't
  37    want extra underscores (e.g., "nlm_32_").  The XCONCAT2 macro will
  38    cause the inner CONCAT2 macros to be evaluated first, producing
  39    still-valid pp-tokens.  Then the final concatenation can be done.  */
  40 #undef CONCAT4
  41 #define CONCAT4(a,b,c,d) XCONCAT2(CONCAT2(a,b),CONCAT2(c,d))
  42 #endif
  43 #endif
  44
  45 /* The word size used by BFD on the host.  This may be 64 with a 32
  46    bit target if the host is 64 bit, or if other 64 bit targets have
  47    been selected with --enable-targets, or if --enable-64-bit-bfd.  */
  48 #define BFD_ARCH_SIZE @wordsize@
  49
  50 /* The word size of the default bfd target.  */
  51 #define BFD_DEFAULT_TARGET_SIZE @bfd_default_target_size@
  52
  53 #define BFD_HOST_64BIT_LONG @BFD_HOST_64BIT_LONG@
  54 #define BFD_HOST_LONG_LONG @BFD_HOST_LONG_LONG@
  55 #if @BFD_HOST_64_BIT_DEFINED@
  56 #define BFD_HOST_64_BIT @BFD_HOST_64_BIT@
  57 #define BFD_HOST_U_64_BIT @BFD_HOST_U_64_BIT@
  58 typedef BFD_HOST_64_BIT bfd_int64_t;
  59 typedef BFD_HOST_U_64_BIT bfd_uint64_t;
  60 #endif
  61
  62 #if BFD_ARCH_SIZE >= 64
  63 #define BFD64
  64 #endif
  65
  66 #ifndef INLINE
  67 #if __GNUC__ >= 2
  68 #define INLINE __inline__
  69 #else
  70 #define INLINE
  71 #endif
  72 #endif
  73
  74 /* Forward declaration.  */
  75 typedef struct bfd bfd;
  76
  77 /* Boolean type used in bfd.  Too many systems define their own
  78    versions of "boolean" for us to safely typedef a "boolean" of
  79    our own.  Using an enum for "bfd_boolean" has its own set of
  80    problems, with strange looking casts required to avoid warnings
  81    on some older compilers.  Thus we just use an int.
  82
  83    General rule: Functions which are bfd_boolean return TRUE on
  84    success and FALSE on failure (unless they're a predicate).  */
  85
  86 typedef int bfd_boolean;
  87 #undef FALSE
  88 #undef TRUE
  89 #define FALSE 0
  90 #define TRUE 1
  91
  92 #if 0
  93 /* Poison.  */
  94 #undef false
  95 #undef true
  96 #define false dont_use_false_in_bfd
  97 #define true dont_use_true_in_bfd
  98 #endif
  99
 100 #ifdef BFD64
 101
 102 #ifndef BFD_HOST_64_BIT
 103  #error No 64 bit integer type available
 104 #endif /* ! defined (BFD_HOST_64_BIT) */
 105
 106 typedef BFD_HOST_U_64_BIT bfd_vma;
 107 typedef BFD_HOST_64_BIT bfd_signed_vma;
 108 typedef BFD_HOST_U_64_BIT bfd_size_type;
 109 typedef BFD_HOST_U_64_BIT symvalue;
 110
 111 #ifndef fprintf_vma
 112 #if BFD_HOST_64BIT_LONG
 113 #define sprintf_vma(s,x) sprintf (s, "%016lx", x)
 114 #define fprintf_vma(f,x) fprintf (f, "%016lx", x)
 115 #else
 116 #define _bfd_int64_low(x) ((unsigned long) (((x) & 0xffffffff)))
 117 #define _bfd_int64_high(x) ((unsigned long) (((x) >> 32) & 0xffffffff))
 118 #define fprintf_vma(s,x) \
 119   fprintf ((s), "%08lx%08lx", _bfd_int64_high (x), _bfd_int64_low (x))
 120 #define sprintf_vma(s,x) \
 121   sprintf ((s), "%08lx%08lx", _bfd_int64_high (x), _bfd_int64_low (x))
 122 #endif
 123 #endif
 124
 125 #else /* not BFD64  */
 126
 127 /* Represent a target address.  Also used as a generic unsigned type
 128    which is guaranteed to be big enough to hold any arithmetic types
 129    we need to deal with.  */
 130 typedef unsigned long bfd_vma;
 131
 132 /* A generic signed type which is guaranteed to be big enough to hold any
 133    arithmetic types we need to deal with.  Can be assumed to be compatible
 134    with bfd_vma in the same way that signed and unsigned ints are compatible
 135    (as parameters, in assignment, etc).  */
 136 typedef long bfd_signed_vma;
 137
 138 typedef unsigned long symvalue;
 139 typedef unsigned long bfd_size_type;
 140
 141 /* Print a bfd_vma x on stream s.  */
 142 #define fprintf_vma(s,x) fprintf (s, "%08lx", x)
 143 #define sprintf_vma(s,x) sprintf (s, "%08lx", x)
 144
 145 #endif /* not BFD64  */
 146
 147 #ifndef BFD_HOST_64_BIT
 148 /* Fall back on a 32 bit type.  The idea is to make these types always
 149    available for function return types, but in the case that
 150    BFD_HOST_64_BIT is undefined such a function should abort or
 151    otherwise signal an error.  */
 152 typedef bfd_signed_vma bfd_int64_t;
 153 typedef bfd_vma bfd_uint64_t;
 154 #endif
 155
 156 /* An offset into a file.  BFD always uses the largest possible offset
 157    based on the build time availability of fseek, fseeko, or fseeko64.  */
 158 typedef @bfd_file_ptr@ file_ptr;
 159 typedef unsigned @bfd_file_ptr@ ufile_ptr;
 160
 161 extern void bfd_sprintf_vma (bfd *, char *, bfd_vma);
 162 extern void bfd_fprintf_vma (bfd *, void *, bfd_vma);
 163
 164 #define printf_vma(x) fprintf_vma(stdout,x)
 165 #define bfd_printf_vma(abfd,x) bfd_fprintf_vma (abfd,stdout,x)
 166
 167 typedef unsigned int flagword;  /* 32 bits of flags */
 168 typedef unsigned char bfd_byte;
 169 \f
 170 /* File formats.  */
 171
 172 typedef enum bfd_format
 173 {
 174   bfd_unknown = 0,      /* File format is unknown.  */
 175   bfd_object,           /* Linker/assembler/compiler output.  */
 176   bfd_archive,          /* Object archive file.  */
 177   bfd_core,             /* Core dump.  */
 178   bfd_type_end          /* Marks the end; don't use it!  */
 179 }
 180 bfd_format;
 181
 182 /* Values that may appear in the flags field of a BFD.  These also
 183    appear in the object_flags field of the bfd_target structure, where
 184    they indicate the set of flags used by that backend (not all flags
 185    are meaningful for all object file formats) (FIXME: at the moment,
 186    the object_flags values have mostly just been copied from backend
 187    to another, and are not necessarily correct).  */
 188
 189 /* No flags.  */
 190 #define BFD_NO_FLAGS    0x00
 191
 192 /* BFD contains relocation entries.  */
 193 #define HAS_RELOC       0x01
 194
 195 /* BFD is directly executable.  */
 196 #define EXEC_P          0x02
 197
 198 /* BFD has line number information (basically used for F_LNNO in a
 199    COFF header).  */
 200 #define HAS_LINENO      0x04
 201
 202 /* BFD has debugging information.  */
 203 #define HAS_DEBUG       0x08
 204
 205 /* BFD has symbols.  */
 206 #define HAS_SYMS        0x10
 207
 208 /* BFD has local symbols (basically used for F_LSYMS in a COFF
 209    header).  */
 210 #define HAS_LOCALS      0x20
 211
 212 /* BFD is a dynamic object.  */
 213 #define DYNAMIC         0x40
 214
 215 /* Text section is write protected (if D_PAGED is not set, this is
 216    like an a.out NMAGIC file) (the linker sets this by default, but
 217    clears it for -r or -N).  */
 218 #define WP_TEXT         0x80
 219
 220 /* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
 221    linker sets this by default, but clears it for -r or -n or -N).  */
 222 #define D_PAGED         0x100
 223
 224 /* BFD is relaxable (this means that bfd_relax_section may be able to
 225    do something) (sometimes bfd_relax_section can do something even if
 226    this is not set).  */
 227 #define BFD_IS_RELAXABLE 0x200
 228
 229 /* This may be set before writing out a BFD to request using a
 230    traditional format.  For example, this is used to request that when
 231    writing out an a.out object the symbols not be hashed to eliminate
 232    duplicates.  */
 233 #define BFD_TRADITIONAL_FORMAT 0x400
 234
 235 /* This flag indicates that the BFD contents are actually cached in
 236    memory.  If this is set, iostream points to a bfd_in_memory struct.  */
 237 #define BFD_IN_MEMORY 0x800
 238
 239 /* The sections in this BFD specify a memory page.  */
 240 #define HAS_LOAD_PAGE 0x1000
 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   /* A function used to create new elements in the hash table.  The
 380      first entry is itself a pointer to an element.  When this
 381      function is first invoked, this pointer will be NULL.  However,
 382      having the pointer permits a hierarchy of method functions to be
 383      built each of which calls the function in the superclass.  Thus
 384      each function should be written to allocate a new block of memory
 385      only if the argument is NULL.  */
 386   struct bfd_hash_entry *(*newfunc)
 387     (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
 388    /* An objalloc for this hash table.  This is a struct objalloc *,
 389      but we use void * to avoid requiring the inclusion of objalloc.h.  */
 390   void *memory;
 391 };
 392
 393 /* Initialize a hash table.  */
 394 extern bfd_boolean bfd_hash_table_init
 395   (struct bfd_hash_table *,
 396    struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 397                                struct bfd_hash_table *,
 398                                const char *));
 399
 400 /* Initialize a hash table specifying a size.  */
 401 extern bfd_boolean bfd_hash_table_init_n
 402   (struct bfd_hash_table *,
 403    struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 404                                struct bfd_hash_table *,
 405                                const char *),
 406    unsigned int size);
 407
 408 /* Free up a hash table.  */
 409 extern void bfd_hash_table_free
 410   (struct bfd_hash_table *);
 411
 412 /* Look up a string in a hash table.  If CREATE is TRUE, a new entry
 413    will be created for this string if one does not already exist.  The
 414    COPY argument must be TRUE if this routine should copy the string
 415    into newly allocated memory when adding an entry.  */
 416 extern struct bfd_hash_entry *bfd_hash_lookup
 417   (struct bfd_hash_table *, const char *, bfd_boolean create,
 418    bfd_boolean copy);
 419
 420 /* Replace an entry in a hash table.  */
 421 extern void bfd_hash_replace
 422   (struct bfd_hash_table *, struct bfd_hash_entry *old,
 423    struct bfd_hash_entry *nw);
 424
 425 /* Base method for creating a hash table entry.  */
 426 extern struct bfd_hash_entry *bfd_hash_newfunc
 427   (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
 428
 429 /* Grab some space for a hash table entry.  */
 430 extern void *bfd_hash_allocate
 431   (struct bfd_hash_table *, unsigned int);
 432
 433 /* Traverse a hash table in a random order, calling a function on each
 434    element.  If the function returns FALSE, the traversal stops.  The
 435    INFO argument is passed to the function.  */
 436 extern void bfd_hash_traverse
 437   (struct bfd_hash_table *,
 438    bfd_boolean (*) (struct bfd_hash_entry *, void *),
 439    void *info);
 440
 441 /* Allows the default size of a hash table to be configured. New hash
 442    tables allocated using bfd_hash_table_init will be created with
 443    this size.  */
 444 extern void bfd_hash_set_default_size (bfd_size_type);
 445
 446 /* This structure is used to keep track of stabs in sections
 447    information while linking.  */
 448
 449 struct stab_info
 450 {
 451   /* A hash table used to hold stabs strings.  */
 452   struct bfd_strtab_hash *strings;
 453   /* The header file hash table.  */
 454   struct bfd_hash_table includes;
 455   /* The first .stabstr section.  */
 456   struct bfd_section *stabstr;
 457 };
 458
 459 #define COFF_SWAP_TABLE (void *) &bfd_coff_std_swap_table
 460
 461 /* User program access to BFD facilities.  */
 462
 463 /* Direct I/O routines, for programs which know more about the object
 464    file than BFD does.  Use higher level routines if possible.  */
 465
 466 extern bfd_size_type bfd_bread (void *, bfd_size_type, bfd *);
 467 extern bfd_size_type bfd_bwrite (const void *, bfd_size_type, bfd *);
 468 extern int bfd_seek (bfd *, file_ptr, int);
 469 extern file_ptr bfd_tell (bfd *);
 470 extern int bfd_flush (bfd *);
 471 extern int bfd_stat (bfd *, struct stat *);
 472
 473 /* Deprecated old routines.  */
 474 #if __GNUC__
 475 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD)                            \
 476   (warn_deprecated ("bfd_read", __FILE__, __LINE__, __FUNCTION__),      \
 477    bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 478 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD)                           \
 479   (warn_deprecated ("bfd_write", __FILE__, __LINE__, __FUNCTION__),     \
 480    bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 481 #else
 482 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD)                            \
 483   (warn_deprecated ("bfd_read", (const char *) 0, 0, (const char *) 0), \
 484    bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 485 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD)                           \
 486   (warn_deprecated ("bfd_write", (const char *) 0, 0, (const char *) 0),\
 487    bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 488 #endif
 489 extern void warn_deprecated (const char *, const char *, int, const char *);
 490
 491 /* Cast from const char * to char * so that caller can assign to
 492    a char * without a warning.  */
 493 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
 494 #define bfd_get_cacheable(abfd) ((abfd)->cacheable)
 495 #define bfd_get_format(abfd) ((abfd)->format)
 496 #define bfd_get_target(abfd) ((abfd)->xvec->name)
 497 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
 498 #define bfd_family_coff(abfd) \
 499   (bfd_get_flavour (abfd) == bfd_target_coff_flavour || \
 500    bfd_get_flavour (abfd) == bfd_target_xcoff_flavour)
 501 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG)
 502 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE)
 503 #define bfd_header_big_endian(abfd) \
 504   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG)
 505 #define bfd_header_little_endian(abfd) \
 506   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE)
 507 #define bfd_get_file_flags(abfd) ((abfd)->flags)
 508 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
 509 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
 510 #define bfd_my_archive(abfd) ((abfd)->my_archive)
 511 #define bfd_has_map(abfd) ((abfd)->has_armap)
 512
 513 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
 514 #define bfd_usrdata(abfd) ((abfd)->usrdata)
 515
 516 #define bfd_get_start_address(abfd) ((abfd)->start_address)
 517 #define bfd_get_symcount(abfd) ((abfd)->symcount)
 518 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
 519 #define bfd_count_sections(abfd) ((abfd)->section_count)
 520
 521 #define bfd_get_dynamic_symcount(abfd) ((abfd)->dynsymcount)
 522
 523 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
 524
 525 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = bool), TRUE)
 526
 527 extern bfd_boolean bfd_cache_close
 528   (bfd *abfd);
 529 /* NB: This declaration should match the autogenerated one in libbfd.h.  */
 530
 531 extern bfd_boolean bfd_cache_close_all (void);
 532
 533 extern bfd_boolean bfd_record_phdr
 534   (bfd *, unsigned long, bfd_boolean, flagword, bfd_boolean, bfd_vma,
 535    bfd_boolean, bfd_boolean, unsigned int, struct bfd_section **);
 536
 537 /* Byte swapping routines.  */
 538
 539 bfd_uint64_t bfd_getb64 (const void *);
 540 bfd_uint64_t bfd_getl64 (const void *);
 541 bfd_int64_t bfd_getb_signed_64 (const void *);
 542 bfd_int64_t bfd_getl_signed_64 (const void *);
 543 bfd_vma bfd_getb32 (const void *);
 544 bfd_vma bfd_getl32 (const void *);
 545 bfd_signed_vma bfd_getb_signed_32 (const void *);
 546 bfd_signed_vma bfd_getl_signed_32 (const void *);
 547 bfd_vma bfd_getb16 (const void *);
 548 bfd_vma bfd_getl16 (const void *);
 549 bfd_signed_vma bfd_getb_signed_16 (const void *);
 550 bfd_signed_vma bfd_getl_signed_16 (const void *);
 551 void bfd_putb64 (bfd_uint64_t, void *);
 552 void bfd_putl64 (bfd_uint64_t, void *);
 553 void bfd_putb32 (bfd_vma, void *);
 554 void bfd_putl32 (bfd_vma, void *);
 555 void bfd_putb16 (bfd_vma, void *);
 556 void bfd_putl16 (bfd_vma, void *);
 557
 558 /* Byte swapping routines which take size and endiannes as arguments.  */
 559
 560 bfd_uint64_t bfd_get_bits (const void *, int, bfd_boolean);
 561 void bfd_put_bits (bfd_uint64_t, void *, int, bfd_boolean);
 562
 563 extern bfd_boolean bfd_section_already_linked_table_init (void);
 564 extern void bfd_section_already_linked_table_free (void);
 565 \f
 566 /* Externally visible ECOFF routines.  */
 567
 568 #if defined(__STDC__) || defined(ALMOST_STDC)
 569 struct ecoff_debug_info;
 570 struct ecoff_debug_swap;
 571 struct ecoff_extr;
 572 struct bfd_symbol;
 573 struct bfd_link_info;
 574 struct bfd_link_hash_entry;
 575 struct bfd_elf_version_tree;
 576 #endif
 577 extern bfd_vma bfd_ecoff_get_gp_value
 578   (bfd * abfd);
 579 extern bfd_boolean bfd_ecoff_set_gp_value
 580   (bfd *abfd, bfd_vma gp_value);
 581 extern bfd_boolean bfd_ecoff_set_regmasks
 582   (bfd *abfd, unsigned long gprmask, unsigned long fprmask,
 583    unsigned long *cprmask);
 584 extern void *bfd_ecoff_debug_init
 585   (bfd *output_bfd, struct ecoff_debug_info *output_debug,
 586    const struct ecoff_debug_swap *output_swap, struct bfd_link_info *);
 587 extern void bfd_ecoff_debug_free
 588   (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 589    const struct ecoff_debug_swap *output_swap, struct bfd_link_info *);
 590 extern bfd_boolean bfd_ecoff_debug_accumulate
 591   (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 592    const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 593    struct ecoff_debug_info *input_debug,
 594    const struct ecoff_debug_swap *input_swap, struct bfd_link_info *);
 595 extern bfd_boolean bfd_ecoff_debug_accumulate_other
 596   (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 597    const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 598    struct bfd_link_info *);
 599 extern bfd_boolean bfd_ecoff_debug_externals
 600   (bfd *abfd, struct ecoff_debug_info *debug,
 601    const struct ecoff_debug_swap *swap, bfd_boolean relocatable,
 602    bfd_boolean (*get_extr) (struct bfd_symbol *, struct ecoff_extr *),
 603    void (*set_index) (struct bfd_symbol *, bfd_size_type));
 604 extern bfd_boolean bfd_ecoff_debug_one_external
 605   (bfd *abfd, struct ecoff_debug_info *debug,
 606    const struct ecoff_debug_swap *swap, const char *name,
 607    struct ecoff_extr *esym);
 608 extern bfd_size_type bfd_ecoff_debug_size
 609   (bfd *abfd, struct ecoff_debug_info *debug,
 610    const struct ecoff_debug_swap *swap);
 611 extern bfd_boolean bfd_ecoff_write_debug
 612   (bfd *abfd, struct ecoff_debug_info *debug,
 613    const struct ecoff_debug_swap *swap, file_ptr where);
 614 extern bfd_boolean bfd_ecoff_write_accumulated_debug
 615   (void *handle, bfd *abfd, struct ecoff_debug_info *debug,
 616    const struct ecoff_debug_swap *swap,
 617    struct bfd_link_info *info, file_ptr where);
 618
 619 /* Externally visible ELF routines.  */
 620
 621 struct bfd_link_needed_list
 622 {
 623   struct bfd_link_needed_list *next;
 624   bfd *by;
 625   const char *name;
 626 };
 627
 628 enum dynamic_lib_link_class {
 629   DYN_NORMAL = 0,
 630   DYN_AS_NEEDED = 1,
 631   DYN_DT_NEEDED = 2,
 632   DYN_NO_ADD_NEEDED = 4,
 633   DYN_NO_NEEDED = 8
 634 };
 635
 636 extern bfd_boolean bfd_elf_record_link_assignment
 637   (bfd *, struct bfd_link_info *, const char *, bfd_boolean);
 638 extern struct bfd_link_needed_list *bfd_elf_get_needed_list
 639   (bfd *, struct bfd_link_info *);
 640 extern bfd_boolean bfd_elf_get_bfd_needed_list
 641   (bfd *, struct bfd_link_needed_list **);
 642 extern bfd_boolean bfd_elf_size_dynamic_sections
 643   (bfd *, const char *, const char *, const char *, const char * const *,
 644    struct bfd_link_info *, struct bfd_section **, struct bfd_elf_version_tree *);
 645 extern void bfd_elf_set_dt_needed_name
 646   (bfd *, const char *);
 647 extern const char *bfd_elf_get_dt_soname
 648   (bfd *);
 649 extern void bfd_elf_set_dyn_lib_class
 650   (bfd *, int);
 651 extern int bfd_elf_get_dyn_lib_class
 652   (bfd *);
 653 extern struct bfd_link_needed_list *bfd_elf_get_runpath_list
 654   (bfd *, struct bfd_link_info *);
 655 extern bfd_boolean bfd_elf_discard_info
 656   (bfd *, struct bfd_link_info *);
 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, char *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 bfd_boolean bfd_m68k_elf32_create_embedded_relocs
 702   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, char **);
 703
 704 /* SunOS shared library support routines for the linker.  */
 705
 706 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list
 707   (bfd *, struct bfd_link_info *);
 708 extern bfd_boolean bfd_sunos_record_link_assignment
 709   (bfd *, struct bfd_link_info *, const char *);
 710 extern bfd_boolean bfd_sunos_size_dynamic_sections
 711   (bfd *, struct bfd_link_info *, struct bfd_section **, struct bfd_section **, struct bfd_section **);
 712
 713 /* Linux shared library support routines for the linker.  */
 714
 715 extern bfd_boolean bfd_i386linux_size_dynamic_sections
 716   (bfd *, struct bfd_link_info *);
 717 extern bfd_boolean bfd_m68klinux_size_dynamic_sections
 718   (bfd *, struct bfd_link_info *);
 719 extern bfd_boolean bfd_sparclinux_size_dynamic_sections
 720   (bfd *, struct bfd_link_info *);
 721
 722 /* mmap hacks */
 723
 724 struct _bfd_window_internal;
 725 typedef struct _bfd_window_internal bfd_window_internal;
 726
 727 typedef struct _bfd_window
 728 {
 729   /* What the user asked for.  */
 730   void *data;
 731   bfd_size_type size;
 732   /* The actual window used by BFD.  Small user-requested read-only
 733      regions sharing a page may share a single window into the object
 734      file.  Read-write versions shouldn't until I've fixed things to
 735      keep track of which portions have been claimed by the
 736      application; don't want to give the same region back when the
 737      application wants two writable copies!  */
 738   struct _bfd_window_internal *i;
 739 }
 740 bfd_window;
 741
 742 extern void bfd_init_window
 743   (bfd_window *);
 744 extern void bfd_free_window
 745   (bfd_window *);
 746 extern bfd_boolean bfd_get_file_window
 747   (bfd *, file_ptr, bfd_size_type, bfd_window *, bfd_boolean);
 748
 749 /* XCOFF support routines for the linker.  */
 750
 751 extern bfd_boolean bfd_xcoff_link_record_set
 752   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_size_type);
 753 extern bfd_boolean bfd_xcoff_import_symbol
 754   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_vma,
 755    const char *, const char *, const char *, unsigned int);
 756 extern bfd_boolean bfd_xcoff_export_symbol
 757   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *);
 758 extern bfd_boolean bfd_xcoff_link_count_reloc
 759   (bfd *, struct bfd_link_info *, const char *);
 760 extern bfd_boolean bfd_xcoff_record_link_assignment
 761   (bfd *, struct bfd_link_info *, const char *);
 762 extern bfd_boolean bfd_xcoff_size_dynamic_sections
 763   (bfd *, struct bfd_link_info *, const char *, const char *,
 764    unsigned long, unsigned long, unsigned long, bfd_boolean,
 765    int, bfd_boolean, bfd_boolean, struct bfd_section **, bfd_boolean);
 766 extern bfd_boolean bfd_xcoff_link_generate_rtinit
 767   (bfd *, const char *, const char *, bfd_boolean);
 768
 769 /* XCOFF support routines for ar.  */
 770 extern bfd_boolean bfd_xcoff_ar_archive_set_magic
 771   (bfd *, char *);
 772
 773 /* Externally visible COFF routines.  */
 774
 775 #if defined(__STDC__) || defined(ALMOST_STDC)
 776 struct internal_syment;
 777 union internal_auxent;
 778 #endif
 779
 780 extern bfd_boolean bfd_coff_get_syment
 781   (bfd *, struct bfd_symbol *, struct internal_syment *);
 782
 783 extern bfd_boolean bfd_coff_get_auxent
 784   (bfd *, struct bfd_symbol *, int, union internal_auxent *);
 785
 786 extern bfd_boolean bfd_coff_set_symbol_class
 787   (bfd *, struct bfd_symbol *, unsigned int);
 788
 789 extern bfd_boolean bfd_m68k_coff_create_embedded_relocs
 790   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, char **);
 791
 792 /* ARM Interworking support.  Called from linker.  */
 793 extern bfd_boolean bfd_arm_allocate_interworking_sections
 794   (struct bfd_link_info *);
 795
 796 extern bfd_boolean bfd_arm_process_before_allocation
 797   (bfd *, struct bfd_link_info *, int);
 798
 799 extern bfd_boolean bfd_arm_get_bfd_for_interworking
 800   (bfd *, struct bfd_link_info *);
 801
 802 /* PE ARM Interworking support.  Called from linker.  */
 803 extern bfd_boolean bfd_arm_pe_allocate_interworking_sections
 804   (struct bfd_link_info *);
 805
 806 extern bfd_boolean bfd_arm_pe_process_before_allocation
 807   (bfd *, struct bfd_link_info *, int);
 808
 809 extern bfd_boolean bfd_arm_pe_get_bfd_for_interworking
 810   (bfd *, struct bfd_link_info *);
 811
 812 /* ELF ARM Interworking support.  Called from linker.  */
 813 extern bfd_boolean bfd_elf32_arm_allocate_interworking_sections
 814   (struct bfd_link_info *);
 815
 816 extern bfd_boolean bfd_elf32_arm_process_before_allocation
 817   (bfd *, struct bfd_link_info *, int, int, int);
 818
 819 extern bfd_boolean bfd_elf32_arm_get_bfd_for_interworking
 820   (bfd *, struct bfd_link_info *);
 821
 822 extern bfd_boolean bfd_elf32_arm_add_glue_sections_to_bfd
 823   (bfd *, struct bfd_link_info *);
 824
 825 /* ARM Note section processing.  */
 826 extern bfd_boolean bfd_arm_merge_machines
 827   (bfd *, bfd *);
 828
 829 extern bfd_boolean bfd_arm_update_notes
 830   (bfd *, const char *);
 831
 832 extern unsigned int bfd_arm_get_mach_from_notes
 833   (bfd *, const char *);
 834
 835 /* TI COFF load page support.  */
 836 extern void bfd_ticoff_set_section_load_page
 837   (struct bfd_section *, int);
 838
 839 extern int bfd_ticoff_get_section_load_page
 840   (struct bfd_section *);
 841
 842 /* H8/300 functions.  */
 843 extern bfd_vma bfd_h8300_pad_address
 844   (bfd *, bfd_vma);
 845
 846 /* IA64 Itanium code generation.  Called from linker.  */
 847 extern void bfd_elf32_ia64_after_parse
 848   (int);
 849
 850 extern void bfd_elf64_ia64_after_parse
 851   (int);
 852
 853 /* This structure is used for a comdat section, as in PE.  A comdat
 854    section is associated with a particular symbol.  When the linker
 855    sees a comdat section, it keeps only one of the sections with a
 856    given name and associated with a given symbol.  */
 857
 858 struct coff_comdat_info
 859 {
 860   /* The name of the symbol associated with a comdat section.  */
 861   const char *name;
 862
 863   /* The local symbol table index of the symbol associated with a
 864      comdat section.  This is only meaningful to the object file format
 865      specific code; it is not an index into the list returned by
 866      bfd_canonicalize_symtab.  */
 867   long symbol;
 868 };
 869
 870 extern struct coff_comdat_info *bfd_coff_get_comdat_section
 871   (bfd *, struct bfd_section *);
 872