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, 1999,
   4    2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
   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 \f
 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 \f
 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 \f
 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 \f
 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   (((bfd)->direction != write_direction && (sec)->rawsize != 0  \
 295     ? (sec)->rawsize : (sec)->size) / bfd_octets_per_byte (bfd))
 296
 297 /* Return TRUE if input section SEC 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 \f
 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 \f
 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 /* Rename an entry in a hash table.  */
 408 extern void bfd_hash_rename
 409   (struct bfd_hash_table *, const char *, struct bfd_hash_entry *);
 410
 411 /* Replace an entry in a hash table.  */
 412 extern void bfd_hash_replace
 413   (struct bfd_hash_table *, struct bfd_hash_entry *old,
 414    struct bfd_hash_entry *nw);
 415
 416 /* Base method for creating a hash table entry.  */
 417 extern struct bfd_hash_entry *bfd_hash_newfunc
 418   (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
 419
 420 /* Grab some space for a hash table entry.  */
 421 extern void *bfd_hash_allocate
 422   (struct bfd_hash_table *, unsigned int);
 423
 424 /* Traverse a hash table in a random order, calling a function on each
 425    element.  If the function returns FALSE, the traversal stops.  The
 426    INFO argument is passed to the function.  */
 427 extern void bfd_hash_traverse
 428   (struct bfd_hash_table *,
 429    bfd_boolean (*) (struct bfd_hash_entry *, void *),
 430    void *info);
 431
 432 /* Allows the default size of a hash table to be configured. New hash
 433    tables allocated using bfd_hash_table_init will be created with
 434    this size.  */
 435 extern unsigned long bfd_hash_set_default_size (unsigned long);
 436
 437 /* This structure is used to keep track of stabs in sections
 438    information while linking.  */
 439
 440 struct stab_info
 441 {
 442   /* A hash table used to hold stabs strings.  */
 443   struct bfd_strtab_hash *strings;
 444   /* The header file hash table.  */
 445   struct bfd_hash_table includes;
 446   /* The first .stabstr section.  */
 447   struct bfd_section *stabstr;
 448 };
 449
 450 #define COFF_SWAP_TABLE (void *) &bfd_coff_std_swap_table
 451
 452 /* User program access to BFD facilities.  */
 453
 454 /* Direct I/O routines, for programs which know more about the object
 455    file than BFD does.  Use higher level routines if possible.  */
 456
 457 extern bfd_size_type bfd_bread (void *, bfd_size_type, bfd *);
 458 extern bfd_size_type bfd_bwrite (const void *, bfd_size_type, bfd *);
 459 extern int bfd_seek (bfd *, file_ptr, int);
 460 extern file_ptr bfd_tell (bfd *);
 461 extern int bfd_flush (bfd *);
 462 extern int bfd_stat (bfd *, struct stat *);
 463
 464 /* Deprecated old routines.  */
 465 #if __GNUC__
 466 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD)                            \
 467   (warn_deprecated ("bfd_read", __FILE__, __LINE__, __FUNCTION__),      \
 468    bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 469 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD)                           \
 470   (warn_deprecated ("bfd_write", __FILE__, __LINE__, __FUNCTION__),     \
 471    bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 472 #else
 473 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD)                            \
 474   (warn_deprecated ("bfd_read", (const char *) 0, 0, (const char *) 0), \
 475    bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 476 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD)                           \
 477   (warn_deprecated ("bfd_write", (const char *) 0, 0, (const char *) 0),\
 478    bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 479 #endif
 480 extern void warn_deprecated (const char *, const char *, int, const char *);
 481
 482 /* Cast from const char * to char * so that caller can assign to
 483    a char * without a warning.  */
 484 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
 485 #define bfd_get_cacheable(abfd) ((abfd)->cacheable)
 486 #define bfd_get_format(abfd) ((abfd)->format)
 487 #define bfd_get_target(abfd) ((abfd)->xvec->name)
 488 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
 489 #define bfd_family_coff(abfd) \
 490   (bfd_get_flavour (abfd) == bfd_target_coff_flavour || \
 491    bfd_get_flavour (abfd) == bfd_target_xcoff_flavour)
 492 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG)
 493 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE)
 494 #define bfd_header_big_endian(abfd) \
 495   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG)
 496 #define bfd_header_little_endian(abfd) \
 497   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE)
 498 #define bfd_get_file_flags(abfd) ((abfd)->flags)
 499 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
 500 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
 501 #define bfd_my_archive(abfd) ((abfd)->my_archive)
 502 #define bfd_has_map(abfd) ((abfd)->has_armap)
 503 #define bfd_is_thin_archive(abfd) ((abfd)->is_thin_archive)
 504
 505 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
 506 #define bfd_usrdata(abfd) ((abfd)->usrdata)
 507
 508 #define bfd_get_start_address(abfd) ((abfd)->start_address)
 509 #define bfd_get_symcount(abfd) ((abfd)->symcount)
 510 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
 511 #define bfd_count_sections(abfd) ((abfd)->section_count)
 512
 513 #define bfd_get_dynamic_symcount(abfd) ((abfd)->dynsymcount)
 514
 515 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
 516
 517 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = bool), TRUE)
 518
 519 extern bfd_boolean bfd_cache_close
 520   (bfd *abfd);
 521 /* NB: This declaration should match the autogenerated one in libbfd.h.  */
 522
 523 extern bfd_boolean bfd_cache_close_all (void);
 524
 525 extern bfd_boolean bfd_record_phdr
 526   (bfd *, unsigned long, bfd_boolean, flagword, bfd_boolean, bfd_vma,
 527    bfd_boolean, bfd_boolean, unsigned int, struct bfd_section **);
 528
 529 /* Byte swapping routines.  */
 530
 531 bfd_uint64_t bfd_getb64 (const void *);
 532 bfd_uint64_t bfd_getl64 (const void *);
 533 bfd_int64_t bfd_getb_signed_64 (const void *);
 534 bfd_int64_t bfd_getl_signed_64 (const void *);
 535 bfd_vma bfd_getb32 (const void *);
 536 bfd_vma bfd_getl32 (const void *);
 537 bfd_signed_vma bfd_getb_signed_32 (const void *);
 538 bfd_signed_vma bfd_getl_signed_32 (const void *);
 539 bfd_vma bfd_getb16 (const void *);
 540 bfd_vma bfd_getl16 (const void *);
 541 bfd_signed_vma bfd_getb_signed_16 (const void *);
 542 bfd_signed_vma bfd_getl_signed_16 (const void *);
 543 void bfd_putb64 (bfd_uint64_t, void *);
 544 void bfd_putl64 (bfd_uint64_t, void *);
 545 void bfd_putb32 (bfd_vma, void *);
 546 void bfd_putl32 (bfd_vma, void *);
 547 void bfd_putb16 (bfd_vma, void *);
 548 void bfd_putl16 (bfd_vma, void *);
 549
 550 /* Byte swapping routines which take size and endiannes as arguments.  */
 551
 552 bfd_uint64_t bfd_get_bits (const void *, int, bfd_boolean);
 553 void bfd_put_bits (bfd_uint64_t, void *, int, bfd_boolean);
 554
 555 #if defined(__STDC__) || defined(ALMOST_STDC)
 556 struct ecoff_debug_info;
 557 struct ecoff_debug_swap;
 558 struct ecoff_extr;
 559 struct bfd_symbol;
 560 struct bfd_link_info;
 561 struct bfd_link_hash_entry;
 562 struct bfd_section_already_linked;
 563 struct bfd_elf_version_tree;
 564 #endif
 565
 566 extern bfd_boolean bfd_section_already_linked_table_init (void);
 567 extern void bfd_section_already_linked_table_free (void);
 568 extern bfd_boolean _bfd_handle_already_linked
 569   (struct bfd_section *, struct bfd_section_already_linked *,
 570    struct bfd_link_info *);
 571 \f
 572 /* Externally visible ECOFF routines.  */
 573
 574 extern bfd_vma bfd_ecoff_get_gp_value
 575   (bfd * abfd);
 576 extern bfd_boolean bfd_ecoff_set_gp_value
 577   (bfd *abfd, bfd_vma gp_value);
 578 extern bfd_boolean bfd_ecoff_set_regmasks
 579   (bfd *abfd, unsigned long gprmask, unsigned long fprmask,
 580    unsigned long *cprmask);
 581 extern void *bfd_ecoff_debug_init
 582   (bfd *output_bfd, struct ecoff_debug_info *output_debug,
 583    const struct ecoff_debug_swap *output_swap, struct bfd_link_info *);
 584 extern void bfd_ecoff_debug_free
 585   (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 586    const struct ecoff_debug_swap *output_swap, struct bfd_link_info *);
 587 extern bfd_boolean bfd_ecoff_debug_accumulate
 588   (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 589    const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 590    struct ecoff_debug_info *input_debug,
 591    const struct ecoff_debug_swap *input_swap, struct bfd_link_info *);
 592 extern bfd_boolean bfd_ecoff_debug_accumulate_other
 593   (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 594    const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 595    struct bfd_link_info *);
 596 extern bfd_boolean bfd_ecoff_debug_externals
 597   (bfd *abfd, struct ecoff_debug_info *debug,
 598    const struct ecoff_debug_swap *swap, bfd_boolean relocatable,
 599    bfd_boolean (*get_extr) (struct bfd_symbol *, struct ecoff_extr *),
 600    void (*set_index) (struct bfd_symbol *, bfd_size_type));
 601 extern bfd_boolean bfd_ecoff_debug_one_external
 602   (bfd *abfd, struct ecoff_debug_info *debug,
 603    const struct ecoff_debug_swap *swap, const char *name,
 604    struct ecoff_extr *esym);
 605 extern bfd_size_type bfd_ecoff_debug_size
 606   (bfd *abfd, struct ecoff_debug_info *debug,
 607    const struct ecoff_debug_swap *swap);
 608 extern bfd_boolean bfd_ecoff_write_debug
 609   (bfd *abfd, struct ecoff_debug_info *debug,
 610    const struct ecoff_debug_swap *swap, file_ptr where);
 611 extern bfd_boolean bfd_ecoff_write_accumulated_debug
 612   (void *handle, bfd *abfd, struct ecoff_debug_info *debug,
 613    const struct ecoff_debug_swap *swap,
 614    struct bfd_link_info *info, file_ptr where);
 615
 616 /* Externally visible ELF routines.  */
 617
 618 struct bfd_link_needed_list
 619 {
 620   struct bfd_link_needed_list *next;
 621   bfd *by;
 622   const char *name;
 623 };
 624
 625 enum dynamic_lib_link_class {
 626   DYN_NORMAL = 0,
 627   DYN_AS_NEEDED = 1,
 628   DYN_DT_NEEDED = 2,
 629   DYN_NO_ADD_NEEDED = 4,
 630   DYN_NO_NEEDED = 8
 631 };
 632
 633 enum notice_asneeded_action {
 634   notice_as_needed,
 635   notice_not_needed,
 636   notice_needed
 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 char *,
 648    const char * const *, 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 *, enum dynamic_lib_link_class);
 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 void bfd_elf_m68k_set_target_options (struct bfd_link_info *, int);
 722
 723 extern bfd_boolean bfd_bfin_elf32_create_embedded_relocs
 724   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *,
 725    char **);
 726
 727 extern bfd_boolean bfd_cr16_elf32_create_embedded_relocs
 728   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *,
 729    char **);
 730
 731 /* SunOS shared library support routines for the linker.  */
 732
 733 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list
 734   (bfd *, struct bfd_link_info *);
 735 extern bfd_boolean bfd_sunos_record_link_assignment
 736   (bfd *, struct bfd_link_info *, const char *);
 737 extern bfd_boolean bfd_sunos_size_dynamic_sections
 738   (bfd *, struct bfd_link_info *, struct bfd_section **,
 739    struct bfd_section **, struct bfd_section **);
 740
 741 /* Linux shared library support routines for the linker.  */
 742
 743 extern bfd_boolean bfd_i386linux_size_dynamic_sections
 744   (bfd *, struct bfd_link_info *);
 745 extern bfd_boolean bfd_m68klinux_size_dynamic_sections
 746   (bfd *, struct bfd_link_info *);
 747 extern bfd_boolean bfd_sparclinux_size_dynamic_sections
 748   (bfd *, struct bfd_link_info *);
 749
 750 /* mmap hacks */
 751
 752 struct _bfd_window_internal;
 753 typedef struct _bfd_window_internal bfd_window_internal;
 754
 755 typedef struct _bfd_window
 756 {
 757   /* What the user asked for.  */
 758   void *data;
 759   bfd_size_type size;
 760   /* The actual window used by BFD.  Small user-requested read-only
 761      regions sharing a page may share a single window into the object
 762      file.  Read-write versions shouldn't until I've fixed things to
 763      keep track of which portions have been claimed by the
 764      application; don't want to give the same region back when the
 765      application wants two writable copies!  */
 766   struct _bfd_window_internal *i;
 767 }
 768 bfd_window;
 769
 770 extern void bfd_init_window
 771   (bfd_window *);
 772 extern void bfd_free_window
 773   (bfd_window *);
 774 extern bfd_boolean bfd_get_file_window
 775   (bfd *, file_ptr, bfd_size_type, bfd_window *, bfd_boolean);
 776
 777 /* XCOFF support routines for the linker.  */
 778
 779 extern bfd_boolean bfd_xcoff_split_import_path
 780   (bfd *, const char *, const char **, const char **);
 781 extern bfd_boolean bfd_xcoff_set_archive_import_path
 782   (struct bfd_link_info *, bfd *, const char *);
 783 extern bfd_boolean bfd_xcoff_link_record_set
 784   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_size_type);
 785 extern bfd_boolean bfd_xcoff_import_symbol
 786   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_vma,
 787    const char *, const char *, const char *, unsigned int);
 788 extern bfd_boolean bfd_xcoff_export_symbol
 789   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *);
 790 extern bfd_boolean bfd_xcoff_link_count_reloc
 791   (bfd *, struct bfd_link_info *, const char *);
 792 extern bfd_boolean bfd_xcoff_record_link_assignment
 793   (bfd *, struct bfd_link_info *, const char *);
 794 extern bfd_boolean bfd_xcoff_size_dynamic_sections
 795   (bfd *, struct bfd_link_info *, const char *, const char *,
 796    unsigned long, unsigned long, unsigned long, bfd_boolean,
 797    int, bfd_boolean, unsigned int, struct bfd_section **, bfd_boolean);
 798 extern bfd_boolean bfd_xcoff_link_generate_rtinit
 799   (bfd *, const char *, const char *, bfd_boolean);
 800
 801 /* XCOFF support routines for ar.  */
 802 extern bfd_boolean bfd_xcoff_ar_archive_set_magic
 803   (bfd *, char *);
 804
 805 /* Externally visible COFF routines.  */
 806
 807 #if defined(__STDC__) || defined(ALMOST_STDC)
 808 struct internal_syment;
 809 union internal_auxent;
 810 #endif
 811
 812 extern bfd_boolean bfd_coff_get_syment
 813   (bfd *, struct bfd_symbol *, struct internal_syment *);
 814
 815 extern bfd_boolean bfd_coff_get_auxent
 816   (bfd *, struct bfd_symbol *, int, union internal_auxent *);
 817
 818 extern bfd_boolean bfd_coff_set_symbol_class
 819   (bfd *, struct bfd_symbol *, unsigned int);
 820
 821 extern bfd_boolean bfd_m68k_coff_create_embedded_relocs
 822   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, char **);
 823
 824 /* ARM VFP11 erratum workaround support.  */
 825 typedef enum
 826 {
 827   BFD_ARM_VFP11_FIX_DEFAULT,
 828   BFD_ARM_VFP11_FIX_NONE,
 829   BFD_ARM_VFP11_FIX_SCALAR,
 830   BFD_ARM_VFP11_FIX_VECTOR
 831 } bfd_arm_vfp11_fix;
 832
 833 extern void bfd_elf32_arm_init_maps
 834   (bfd *);
 835
 836 extern void bfd_elf32_arm_set_vfp11_fix
 837   (bfd *, struct bfd_link_info *);
 838
 839 extern void bfd_elf32_arm_set_cortex_a8_fix
 840   (bfd *, struct bfd_link_info *);
 841
 842 extern bfd_boolean bfd_elf32_arm_vfp11_erratum_scan
 843   (bfd *, struct bfd_link_info *);
 844
 845 extern void bfd_elf32_arm_vfp11_fix_veneer_locations
 846   (bfd *, struct bfd_link_info *);
 847
 848 /* ARM Interworking support.  Called from linker.  */
 849 extern bfd_boolean bfd_arm_allocate_interworking_sections
 850   (struct bfd_link_info *);
 851
 852 extern bfd_boolean bfd_arm_process_before_allocation
 853   (bfd *, struct bfd_link_info *, int);
 854
 855 extern bfd_boolean bfd_arm_get_bfd_for_interworking
 856   (bfd *, struct bfd_link_info *);
 857
 858 /* PE ARM Interworking support.  Called from linker.  */
 859 extern bfd_boolean bfd_arm_pe_allocate_interworking_sections
 860   (struct bfd_link_info *);
 861
 862 extern bfd_boolean bfd_arm_pe_process_before_allocation
 863   (bfd *, struct bfd_link_info *, int);
 864
 865 extern bfd_boolean bfd_arm_pe_get_bfd_for_interworking
 866   (bfd *, struct bfd_link_info *);
 867
 868 /* ELF ARM Interworking support.  Called from linker.  */
 869 extern bfd_boolean bfd_elf32_arm_allocate_interworking_sections
 870   (struct bfd_link_info *);
 871
 872 extern bfd_boolean bfd_elf32_arm_process_before_allocation
 873   (bfd *, struct bfd_link_info *);
 874
 875 void bfd_elf32_arm_set_target_relocs
 876   (bfd *, struct bfd_link_info *, int, char *, int, int, bfd_arm_vfp11_fix,
 877    int, int, int, int, int);
 878
 879 extern bfd_boolean bfd_elf32_arm_get_bfd_for_interworking
 880   (bfd *, struct bfd_link_info *);
 881
 882 extern bfd_boolean bfd_elf32_arm_add_glue_sections_to_bfd
 883   (bfd *, struct bfd_link_info *);
 884
 885 /* ELF ARM mapping symbol support */
 886 #define BFD_ARM_SPECIAL_SYM_TYPE_MAP    (1 << 0)
 887 #define BFD_ARM_SPECIAL_SYM_TYPE_TAG    (1 << 1)
 888 #define BFD_ARM_SPECIAL_SYM_TYPE_OTHER  (1 << 2)
 889 #define BFD_ARM_SPECIAL_SYM_TYPE_ANY    (~0)
 890 extern bfd_boolean bfd_is_arm_special_symbol_name
 891   (const char * name, int type);
 892
 893 extern void bfd_elf32_arm_set_byteswap_code (struct bfd_link_info *, int);
 894
 895 /* ARM Note section processing.  */
 896 extern bfd_boolean bfd_arm_merge_machines
 897   (bfd *, bfd *);
 898
 899 extern bfd_boolean bfd_arm_update_notes
 900   (bfd *, const char *);
 901
 902 extern unsigned int bfd_arm_get_mach_from_notes
 903   (bfd *, const char *);
 904
 905 /* ARM stub generation support.  Called from the linker.  */
 906 extern int elf32_arm_setup_section_lists
 907   (bfd *, struct bfd_link_info *);
 908 extern void elf32_arm_next_input_section
 909   (struct bfd_link_info *, struct bfd_section *);
 910 extern bfd_boolean elf32_arm_size_stubs
 911   (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma,
 912    struct bfd_section * (*) (const char *, struct bfd_section *), void (*) (void));
 913 extern bfd_boolean elf32_arm_build_stubs
 914   (struct bfd_link_info *);
 915
 916 /* ARM unwind section editing support.  */
 917 extern bfd_boolean elf32_arm_fix_exidx_coverage
 918 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean);
 919
 920 /* C6x unwind section editing support.  */
 921 extern bfd_boolean elf32_tic6x_fix_exidx_coverage
 922 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean);
 923
 924 /* PowerPC @tls opcode transform/validate.  */
 925 extern unsigned int _bfd_elf_ppc_at_tls_transform
 926   (unsigned int, unsigned int);
 927 /* PowerPC @tprel opcode transform/validate.  */
 928 extern unsigned int _bfd_elf_ppc_at_tprel_transform
 929   (unsigned int, unsigned int);
 930
 931 /* TI COFF load page support.  */
 932 extern void bfd_ticoff_set_section_load_page
 933   (struct bfd_section *, int);
 934
 935 extern int bfd_ticoff_get_section_load_page
 936   (struct bfd_section *);
 937
 938 /* H8/300 functions.  */
 939 extern bfd_vma bfd_h8300_pad_address
 940   (bfd *, bfd_vma);
 941
 942 /* IA64 Itanium code generation.  Called from linker.  */
 943 extern void bfd_elf32_ia64_after_parse
 944   (int);
 945
 946 extern void bfd_elf64_ia64_after_parse
 947   (int);
 948
 949 /* This structure is used for a comdat section, as in PE.  A comdat
 950    section is associated with a particular symbol.  When the linker
 951    sees a comdat section, it keeps only one of the sections with a
 952    given name and associated with a given symbol.  */
 953
 954 struct coff_comdat_info
 955 {
 956   /* The name of the symbol associated with a comdat section.  */
 957   const char *name;
 958
 959   /* The local symbol table index of the symbol associated with a
 960      comdat section.  This is only meaningful to the object file format
 961      specific code; it is not an index into the list returned by
 962      bfd_canonicalize_symtab.  */
 963   long symbol;
 964 };
 965
 966 extern struct coff_comdat_info *bfd_coff_get_comdat_section
 967   (bfd *, struct bfd_section *);
 968