bfd/bfd-in2.h

   1 /* Main header file for the bfd library -- portable access to object files.
   2    Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
   3    Free Software Foundation, Inc.
   4    Contributed by Cygnus Support.
   5
   6 ** NOTE: bfd.h and bfd-in2.h are GENERATED files.  Don't change them;
   7 ** instead, change bfd-in.h or the other BFD source files processed to
   8 ** generate these files.
   9
  10 This file is part of BFD, the Binary File Descriptor library.
  11
  12 This program is free software; you can redistribute it and/or modify
  13 it under the terms of the GNU General Public License as published by
  14 the Free Software Foundation; either version 2 of the License, or
  15 (at your option) any later version.
  16
  17 This program is distributed in the hope that it will be useful,
  18 but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 GNU General Public License for more details.
  21
  22 You should have received a copy of the GNU General Public License
  23 along with this program; if not, write to the Free Software
  24 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  25
  26 /* bfd.h -- The only header file required by users of the bfd library
  27
  28 The bfd.h file is generated from bfd-in.h and various .c files; if you
  29 change it, your changes will probably be lost.
  30
  31 All the prototypes and definitions following the comment "THE FOLLOWING
  32 IS EXTRACTED FROM THE SOURCE" are extracted from the source files for
  33 BFD.  If you change it, someone oneday will extract it from the source
  34 again, and your changes will be lost.  To save yourself from this bind,
  35 change the definitions in the source in the bfd directory.  Type "make
  36 docs" and then "make headers" in that directory, and magically this file
  37 will change to reflect your changes.
  38
  39 If you don't have the tools to perform the extraction, then you are
  40 safe from someone on your system trampling over your header files.
  41 You should still maintain the equivalence between the source and this
  42 file though; every change you make to the .c file should be reflected
  43 here.  */
  44
  45 #ifndef __BFD_H_SEEN__
  46 #define __BFD_H_SEEN__
  47
  48 #ifdef __cplusplus
  49 extern "C" {
  50 #endif
  51
  52 #include "ansidecl.h"
  53
  54 /* These two lines get substitutions done by commands in Makefile.in.  */
  55 #define BFD_VERSION  "@VERSION@"
  56 #define BFD_ARCH_SIZE @wordsize@
  57 #define BFD_HOST_64BIT_LONG @BFD_HOST_64BIT_LONG@
  58 #if @BFD_HOST_64_BIT_DEFINED@
  59 #define BFD_HOST_64_BIT @BFD_HOST_64_BIT@
  60 #define BFD_HOST_U_64_BIT @BFD_HOST_U_64_BIT@
  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 /* To squelch erroneous compiler warnings ("illegal pointer
  79    combination") from the SVR3 compiler, we would like to typedef
  80    boolean to int (it doesn't like functions which return boolean.
  81    Making sure they are never implicitly declared to return int
  82    doesn't seem to help).  But this file is not configured based on
  83    the host.  */
  84 /* General rules: functions which are boolean return true on success
  85    and false on failure (unless they're a predicate).   -- bfd.doc */
  86 /* I'm sure this is going to break something and someone is going to
  87    force me to change it. */
  88 /* typedef enum boolean {false, true} boolean; */
  89 /* Yup, SVR4 has a "typedef enum boolean" in <sys/types.h>  -fnf */
  90 /* It gets worse if the host also defines a true/false enum... -sts */
  91 /* And even worse if your compiler has built-in boolean types... -law */
  92 #if defined (__GNUG__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 6))
  93 #define TRUE_FALSE_ALREADY_DEFINED
  94 #endif
  95 #ifdef MPW
  96 /* Pre-emptive strike - get the file with the enum. */
  97 #include <Types.h>
  98 #define TRUE_FALSE_ALREADY_DEFINED
  99 #endif /* MPW */
 100 #ifndef TRUE_FALSE_ALREADY_DEFINED
 101 typedef enum bfd_boolean {false, true} boolean;
 102 #define BFD_TRUE_FALSE
 103 #else
 104 /* Use enum names that will appear nowhere else.  */
 105 typedef enum bfd_boolean {bfd_fffalse, bfd_tttrue} boolean;
 106 #endif
 107
 108 /* A pointer to a position in a file.  */
 109 /* FIXME:  This should be using off_t from <sys/types.h>.
 110    For now, try to avoid breaking stuff by not including <sys/types.h> here.
 111    This will break on systems with 64-bit file offsets (e.g. 4.4BSD).
 112    Probably the best long-term answer is to avoid using file_ptr AND off_t
 113    in this header file, and to handle this in the BFD implementation
 114    rather than in its interface.  */
 115 /* typedef off_t        file_ptr; */
 116 typedef long int file_ptr;
 117
 118 /* Support for different sizes of target format ints and addresses.
 119    If the type `long' is at least 64 bits, BFD_HOST_64BIT_LONG will be
 120    set to 1 above.  Otherwise, if gcc is being used, this code will
 121    use gcc's "long long" type.  Otherwise, BFD_HOST_64_BIT must be
 122    defined above.  */
 123
 124 #ifndef BFD_HOST_64_BIT
 125 # if BFD_HOST_64BIT_LONG
 126 #  define BFD_HOST_64_BIT long
 127 #  define BFD_HOST_U_64_BIT unsigned long
 128 # else
 129 #  ifdef __GNUC__
 130 #   if __GNUC__ >= 2
 131 #    define BFD_HOST_64_BIT long long
 132 #    define BFD_HOST_U_64_BIT unsigned long long
 133 #   endif /* __GNUC__ >= 2 */
 134 #  endif /* ! defined (__GNUC__) */
 135 # endif /* ! BFD_HOST_64BIT_LONG */
 136 #endif /* ! defined (BFD_HOST_64_BIT) */
 137
 138 #ifdef BFD64
 139
 140 #ifndef BFD_HOST_64_BIT
 141  #error No 64 bit integer type available
 142 #endif /* ! defined (BFD_HOST_64_BIT) */
 143
 144 typedef BFD_HOST_U_64_BIT bfd_vma;
 145 typedef BFD_HOST_64_BIT bfd_signed_vma;
 146 typedef BFD_HOST_U_64_BIT bfd_size_type;
 147 typedef BFD_HOST_U_64_BIT symvalue;
 148
 149 #ifndef fprintf_vma
 150 #if BFD_HOST_64BIT_LONG
 151 #define sprintf_vma(s,x) sprintf (s, "%016lx", x)
 152 #define fprintf_vma(f,x) fprintf (f, "%016lx", x)
 153 #else
 154 #define _bfd_int64_low(x) ((unsigned long) (((x) & 0xffffffff)))
 155 #define _bfd_int64_high(x) ((unsigned long) (((x) >> 32) & 0xffffffff))
 156 #define fprintf_vma(s,x) \
 157   fprintf ((s), "%08lx%08lx", _bfd_int64_high (x), _bfd_int64_low (x))
 158 #define sprintf_vma(s,x) \
 159   sprintf ((s), "%08lx%08lx", _bfd_int64_high (x), _bfd_int64_low (x))
 160 #endif
 161 #endif
 162
 163 #else /* not BFD64  */
 164
 165 /* Represent a target address.  Also used as a generic unsigned type
 166    which is guaranteed to be big enough to hold any arithmetic types
 167    we need to deal with.  */
 168 typedef unsigned long bfd_vma;
 169
 170 /* A generic signed type which is guaranteed to be big enough to hold any
 171    arithmetic types we need to deal with.  Can be assumed to be compatible
 172    with bfd_vma in the same way that signed and unsigned ints are compatible
 173    (as parameters, in assignment, etc).  */
 174 typedef long bfd_signed_vma;
 175
 176 typedef unsigned long symvalue;
 177 typedef unsigned long bfd_size_type;
 178
 179 /* Print a bfd_vma x on stream s.  */
 180 #define fprintf_vma(s,x) fprintf(s, "%08lx", x)
 181 #define sprintf_vma(s,x) sprintf(s, "%08lx", x)
 182
 183 #endif /* not BFD64  */
 184
 185 #define printf_vma(x) fprintf_vma(stdout,x)
 186
 187 typedef unsigned int flagword;  /* 32 bits of flags */
 188 typedef unsigned char bfd_byte;
 189 \f
 190 /** File formats */
 191
 192 typedef enum bfd_format {
 193               bfd_unknown = 0,  /* file format is unknown */
 194               bfd_object,       /* linker/assember/compiler output */
 195               bfd_archive,      /* object archive file */
 196               bfd_core,         /* core dump */
 197               bfd_type_end}     /* marks the end; don't use it! */
 198          bfd_format;
 199
 200 /* Values that may appear in the flags field of a BFD.  These also
 201    appear in the object_flags field of the bfd_target structure, where
 202    they indicate the set of flags used by that backend (not all flags
 203    are meaningful for all object file formats) (FIXME: at the moment,
 204    the object_flags values have mostly just been copied from backend
 205    to another, and are not necessarily correct).  */
 206
 207 /* No flags.  */
 208 #define BFD_NO_FLAGS    0x00
 209
 210 /* BFD contains relocation entries.  */
 211 #define HAS_RELOC       0x01
 212
 213 /* BFD is directly executable.  */
 214 #define EXEC_P          0x02
 215
 216 /* BFD has line number information (basically used for F_LNNO in a
 217    COFF header).  */
 218 #define HAS_LINENO      0x04
 219
 220 /* BFD has debugging information.  */
 221 #define HAS_DEBUG       0x08
 222
 223 /* BFD has symbols.  */
 224 #define HAS_SYMS        0x10
 225
 226 /* BFD has local symbols (basically used for F_LSYMS in a COFF
 227    header).  */
 228 #define HAS_LOCALS      0x20
 229
 230 /* BFD is a dynamic object.  */
 231 #define DYNAMIC         0x40
 232
 233 /* Text section is write protected (if D_PAGED is not set, this is
 234    like an a.out NMAGIC file) (the linker sets this by default, but
 235    clears it for -r or -N).  */
 236 #define WP_TEXT         0x80
 237
 238 /* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
 239    linker sets this by default, but clears it for -r or -n or -N).  */
 240 #define D_PAGED         0x100
 241
 242 /* BFD is relaxable (this means that bfd_relax_section may be able to
 243    do something) (sometimes bfd_relax_section can do something even if
 244    this is not set).  */
 245 #define BFD_IS_RELAXABLE 0x200
 246
 247 /* This may be set before writing out a BFD to request using a
 248    traditional format.  For example, this is used to request that when
 249    writing out an a.out object the symbols not be hashed to eliminate
 250    duplicates.  */
 251 #define BFD_TRADITIONAL_FORMAT 0x400
 252
 253 /* This flag indicates that the BFD contents are actually cached in
 254    memory.  If this is set, iostream points to a bfd_in_memory struct.  */
 255 #define BFD_IN_MEMORY 0x800
 256 \f
 257 /* symbols and relocation */
 258
 259 /* A count of carsyms (canonical archive symbols).  */
 260 typedef unsigned long symindex;
 261
 262 /* How to perform a relocation.  */
 263 typedef const struct reloc_howto_struct reloc_howto_type;
 264
 265 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
 266
 267 /* General purpose part of a symbol X;
 268    target specific parts are in libcoff.h, libaout.h, etc.  */
 269
 270 #define bfd_get_section(x) ((x)->section)
 271 #define bfd_get_output_section(x) ((x)->section->output_section)
 272 #define bfd_set_section(x,y) ((x)->section) = (y)
 273 #define bfd_asymbol_base(x) ((x)->section->vma)
 274 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
 275 #define bfd_asymbol_name(x) ((x)->name)
 276 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
 277 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
 278 #define bfd_asymbol_flavour(x) (bfd_asymbol_bfd(x)->xvec->flavour)
 279
 280 /* A canonical archive symbol.  */
 281 /* This is a type pun with struct ranlib on purpose! */
 282 typedef struct carsym {
 283   char *name;
 284   file_ptr file_offset;         /* look here to find the file */
 285 } carsym;                       /* to make these you call a carsymogen */
 286
 287
 288 /* Used in generating armaps (archive tables of contents).
 289    Perhaps just a forward definition would do? */
 290 struct orl {                    /* output ranlib */
 291   char **name;                  /* symbol name */
 292   file_ptr pos;                 /* bfd* or file position */
 293   int namidx;                   /* index into string table */
 294 };
 295 \f
 296
 297 /* Linenumber stuff */
 298 typedef struct lineno_cache_entry {
 299   unsigned int line_number;     /* Linenumber from start of function*/
 300   union {
 301     struct symbol_cache_entry *sym; /* Function name */
 302     unsigned long offset;       /* Offset into section */
 303   } u;
 304 } alent;
 305 \f
 306 /* object and core file sections */
 307
 308 #define align_power(addr, align)        \
 309         ( ((addr) + ((1<<(align))-1)) & (-1 << (align)))
 310
 311 typedef struct sec *sec_ptr;
 312
 313 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0)
 314 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0)
 315 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0)
 316 #define bfd_section_name(bfd, ptr) ((ptr)->name)
 317 #define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
 318 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
 319 #define bfd_section_lma(bfd, ptr) ((ptr)->lma)
 320 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
 321 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
 322 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
 323
 324 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
 325
 326 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma= (val)), ((ptr)->user_set_vma = (boolean)true), true)
 327 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),true)
 328 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),true)
 329
 330 typedef struct stat stat_type;
 331 \f
 332 typedef enum bfd_print_symbol
 333 {
 334   bfd_print_symbol_name,
 335   bfd_print_symbol_more,
 336   bfd_print_symbol_all
 337 } bfd_print_symbol_type;
 338
 339 /* Information about a symbol that nm needs.  */
 340
 341 typedef struct _symbol_info
 342 {
 343   symvalue value;
 344   char type;
 345   CONST char *name;            /* Symbol name.  */
 346   unsigned char stab_type;     /* Stab type.  */
 347   char stab_other;             /* Stab other. */
 348   short stab_desc;             /* Stab desc.  */
 349   CONST char *stab_name;       /* String for stab type.  */
 350 } symbol_info;
 351
 352 /* Get the name of a stabs type code.  */
 353
 354 extern const char *bfd_get_stab_name PARAMS ((int));
 355 \f
 356 /* Hash table routines.  There is no way to free up a hash table.  */
 357
 358 /* An element in the hash table.  Most uses will actually use a larger
 359    structure, and an instance of this will be the first field.  */
 360
 361 struct bfd_hash_entry
 362 {
 363   /* Next entry for this hash code.  */
 364   struct bfd_hash_entry *next;
 365   /* String being hashed.  */
 366   const char *string;
 367   /* Hash code.  This is the full hash code, not the index into the
 368      table.  */
 369   unsigned long hash;
 370 };
 371
 372 /* A hash table.  */
 373
 374 struct bfd_hash_table
 375 {
 376   /* The hash array.  */
 377   struct bfd_hash_entry **table;
 378   /* The number of slots in the hash table.  */
 379   unsigned int size;
 380   /* A function used to create new elements in the hash table.  The
 381      first entry is itself a pointer to an element.  When this
 382      function is first invoked, this pointer will be NULL.  However,
 383      having the pointer permits a hierarchy of method functions to be
 384      built each of which calls the function in the superclass.  Thus
 385      each function should be written to allocate a new block of memory
 386      only if the argument is NULL.  */
 387   struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
 388                                              struct bfd_hash_table *,
 389                                              const char *));
 390    /* An objalloc for this hash table.  This is a struct objalloc *,
 391      but we use PTR to avoid requiring the inclusion of objalloc.h.  */
 392   PTR memory;
 393 };
 394
 395 /* Initialize a hash table.  */
 396 extern boolean bfd_hash_table_init
 397   PARAMS ((struct bfd_hash_table *,
 398            struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 399                                        struct bfd_hash_table *,
 400                                        const char *)));
 401
 402 /* Initialize a hash table specifying a size.  */
 403 extern boolean bfd_hash_table_init_n
 404   PARAMS ((struct bfd_hash_table *,
 405            struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 406                                        struct bfd_hash_table *,
 407                                        const char *),
 408            unsigned int size));
 409
 410 /* Free up a hash table.  */
 411 extern void bfd_hash_table_free PARAMS ((struct bfd_hash_table *));
 412
 413 /* Look up a string in a hash table.  If CREATE is true, a new entry
 414    will be created for this string if one does not already exist.  The
 415    COPY argument must be true if this routine should copy the string
 416    into newly allocated memory when adding an entry.  */
 417 extern struct bfd_hash_entry *bfd_hash_lookup
 418   PARAMS ((struct bfd_hash_table *, const char *, boolean create,
 419            boolean copy));
 420
 421 /* Replace an entry in a hash table.  */
 422 extern void bfd_hash_replace
 423   PARAMS ((struct bfd_hash_table *, struct bfd_hash_entry *old,
 424            struct bfd_hash_entry *nw));
 425
 426 /* Base method for creating a hash table entry.  */
 427 extern struct bfd_hash_entry *bfd_hash_newfunc
 428   PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
 429            const char *));
 430
 431 /* Grab some space for a hash table entry.  */
 432 extern PTR bfd_hash_allocate PARAMS ((struct bfd_hash_table *,
 433                                       unsigned int));
 434
 435 /* Traverse a hash table in a random order, calling a function on each
 436    element.  If the function returns false, the traversal stops.  The
 437    INFO argument is passed to the function.  */
 438 extern void bfd_hash_traverse PARAMS ((struct bfd_hash_table *,
 439                                        boolean (*) (struct bfd_hash_entry *,
 440                                                     PTR),
 441                                        PTR info));
 442 \f
 443 /* Semi-portable string concatenation in cpp.
 444    The CAT4 hack is to avoid a problem with some strict ANSI C preprocessors.
 445    The problem is, "32_" is not a valid preprocessing token, and we don't
 446    want extra underscores (e.g., "nlm_32_").  The XCAT2 macro will cause the
 447    inner CAT macros to be evaluated first, producing still-valid pp-tokens.
 448    Then the final concatenation can be done.  (Sigh.)  */
 449 #ifndef CAT
 450 #ifdef SABER
 451 #define CAT(a,b)        a##b
 452 #define CAT3(a,b,c)     a##b##c
 453 #define CAT4(a,b,c,d)   a##b##c##d
 454 #else
 455 #if defined(__STDC__) || defined(ALMOST_STDC)
 456 #define CAT(a,b) a##b
 457 #define CAT3(a,b,c) a##b##c
 458 #define XCAT2(a,b)      CAT(a,b)
 459 #define CAT4(a,b,c,d)   XCAT2(CAT(a,b),CAT(c,d))
 460 #else
 461 #define CAT(a,b) a/**/b
 462 #define CAT3(a,b,c) a/**/b/**/c
 463 #define CAT4(a,b,c,d)   a/**/b/**/c/**/d
 464 #endif
 465 #endif
 466 #endif
 467
 468 #define COFF_SWAP_TABLE (PTR) &bfd_coff_std_swap_table
 469 \f
 470 /* User program access to BFD facilities */
 471
 472 /* Direct I/O routines, for programs which know more about the object
 473    file than BFD does.  Use higher level routines if possible.  */
 474
 475 extern bfd_size_type bfd_read
 476   PARAMS ((PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
 477 extern bfd_size_type bfd_write
 478   PARAMS ((const PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
 479 extern int bfd_seek PARAMS ((bfd *abfd, file_ptr fp, int direction));
 480 extern long bfd_tell PARAMS ((bfd *abfd));
 481 extern int bfd_flush PARAMS ((bfd *abfd));
 482 extern int bfd_stat PARAMS ((bfd *abfd, struct stat *));
 483
 484
 485 /* Cast from const char * to char * so that caller can assign to
 486    a char * without a warning.  */
 487 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
 488 #define bfd_get_cacheable(abfd) ((abfd)->cacheable)
 489 #define bfd_get_format(abfd) ((abfd)->format)
 490 #define bfd_get_target(abfd) ((abfd)->xvec->name)
 491 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
 492 #define bfd_family_coff(abfd) \
 493   (bfd_get_flavour (abfd) == bfd_target_coff_flavour || \
 494    bfd_get_flavour (abfd) == bfd_target_xcoff_flavour)
 495 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG)
 496 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE)
 497 #define bfd_header_big_endian(abfd) \
 498   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG)
 499 #define bfd_header_little_endian(abfd) \
 500   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE)
 501 #define bfd_get_file_flags(abfd) ((abfd)->flags)
 502 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
 503 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
 504 #define bfd_my_archive(abfd) ((abfd)->my_archive)
 505 #define bfd_has_map(abfd) ((abfd)->has_armap)
 506
 507 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
 508 #define bfd_usrdata(abfd) ((abfd)->usrdata)
 509
 510 #define bfd_get_start_address(abfd) ((abfd)->start_address)
 511 #define bfd_get_symcount(abfd) ((abfd)->symcount)
 512 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
 513 #define bfd_count_sections(abfd) ((abfd)->section_count)
 514
 515 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
 516
 517 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = (boolean)(bool)), true)
 518
 519 extern boolean bfd_record_phdr
 520   PARAMS ((bfd *, unsigned long, boolean, flagword, boolean, bfd_vma,
 521            boolean, boolean, unsigned int, struct sec **));
 522
 523 /* Byte swapping routines.  */
 524
 525 bfd_vma         bfd_getb64         PARAMS ((const unsigned char *));
 526 bfd_vma         bfd_getl64         PARAMS ((const unsigned char *));
 527 bfd_signed_vma  bfd_getb_signed_64 PARAMS ((const unsigned char *));
 528 bfd_signed_vma  bfd_getl_signed_64 PARAMS ((const unsigned char *));
 529 bfd_vma         bfd_getb32         PARAMS ((const unsigned char *));
 530 bfd_vma         bfd_getl32         PARAMS ((const unsigned char *));
 531 bfd_signed_vma  bfd_getb_signed_32 PARAMS ((const unsigned char *));
 532 bfd_signed_vma  bfd_getl_signed_32 PARAMS ((const unsigned char *));
 533 bfd_vma         bfd_getb16         PARAMS ((const unsigned char *));
 534 bfd_vma         bfd_getl16         PARAMS ((const unsigned char *));
 535 bfd_signed_vma  bfd_getb_signed_16 PARAMS ((const unsigned char *));
 536 bfd_signed_vma  bfd_getl_signed_16 PARAMS ((const unsigned char *));
 537 void            bfd_putb64         PARAMS ((bfd_vma, unsigned char *));
 538 void            bfd_putl64         PARAMS ((bfd_vma, unsigned char *));
 539 void            bfd_putb32         PARAMS ((bfd_vma, unsigned char *));
 540 void            bfd_putl32         PARAMS ((bfd_vma, unsigned char *));
 541 void            bfd_putb16         PARAMS ((bfd_vma, unsigned char *));
 542 void            bfd_putl16         PARAMS ((bfd_vma, unsigned char *));
 543 \f
 544 /* Externally visible ECOFF routines.  */
 545
 546 #if defined(__STDC__) || defined(ALMOST_STDC)
 547 struct ecoff_debug_info;
 548 struct ecoff_debug_swap;
 549 struct ecoff_extr;
 550 struct symbol_cache_entry;
 551 struct bfd_link_info;
 552 struct bfd_link_hash_entry;
 553 struct bfd_elf_version_tree;
 554 #endif
 555 extern bfd_vma bfd_ecoff_get_gp_value PARAMS ((bfd * abfd));
 556 extern boolean bfd_ecoff_set_gp_value PARAMS ((bfd *abfd, bfd_vma gp_value));
 557 extern boolean bfd_ecoff_set_regmasks
 558   PARAMS ((bfd *abfd, unsigned long gprmask, unsigned long fprmask,
 559            unsigned long *cprmask));
 560 extern PTR bfd_ecoff_debug_init
 561   PARAMS ((bfd *output_bfd, struct ecoff_debug_info *output_debug,
 562            const struct ecoff_debug_swap *output_swap,
 563            struct bfd_link_info *));
 564 extern void bfd_ecoff_debug_free
 565   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 566            const struct ecoff_debug_swap *output_swap,
 567            struct bfd_link_info *));
 568 extern boolean bfd_ecoff_debug_accumulate
 569   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 570            const struct ecoff_debug_swap *output_swap,
 571            bfd *input_bfd, struct ecoff_debug_info *input_debug,
 572            const struct ecoff_debug_swap *input_swap,
 573            struct bfd_link_info *));
 574 extern boolean bfd_ecoff_debug_accumulate_other
 575   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 576            const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 577            struct bfd_link_info *));
 578 extern boolean bfd_ecoff_debug_externals
 579   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 580            const struct ecoff_debug_swap *swap,
 581            boolean relocateable,
 582            boolean (*get_extr) (struct symbol_cache_entry *,
 583                                 struct ecoff_extr *),
 584            void (*set_index) (struct symbol_cache_entry *,
 585                               bfd_size_type)));
 586 extern boolean bfd_ecoff_debug_one_external
 587   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 588            const struct ecoff_debug_swap *swap,
 589            const char *name, struct ecoff_extr *esym));
 590 extern bfd_size_type bfd_ecoff_debug_size
 591   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 592            const struct ecoff_debug_swap *swap));
 593 extern boolean bfd_ecoff_write_debug
 594   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 595            const struct ecoff_debug_swap *swap, file_ptr where));
 596 extern boolean bfd_ecoff_write_accumulated_debug
 597   PARAMS ((PTR handle, bfd *abfd, struct ecoff_debug_info *debug,
 598            const struct ecoff_debug_swap *swap,
 599            struct bfd_link_info *info, file_ptr where));
 600 extern boolean bfd_mips_ecoff_create_embedded_relocs
 601   PARAMS ((bfd *, struct bfd_link_info *, struct sec *, struct sec *,
 602            char **));
 603
 604 /* Externally visible ELF routines.  */
 605
 606 struct bfd_link_needed_list
 607 {
 608   struct bfd_link_needed_list *next;
 609   bfd *by;
 610   const char *name;
 611 };
 612
 613 extern boolean bfd_elf32_record_link_assignment
 614   PARAMS ((bfd *, struct bfd_link_info *, const char *, boolean));
 615 extern boolean bfd_elf64_record_link_assignment
 616   PARAMS ((bfd *, struct bfd_link_info *, const char *, boolean));
 617 extern struct bfd_link_needed_list *bfd_elf_get_needed_list
 618   PARAMS ((bfd *, struct bfd_link_info *));
 619 extern boolean bfd_elf_get_bfd_needed_list
 620   PARAMS ((bfd *, struct bfd_link_needed_list **));
 621 extern boolean bfd_elf32_size_dynamic_sections
 622   PARAMS ((bfd *, const char *, const char *, boolean, const char *,
 623            const char * const *, struct bfd_link_info *, struct sec **,
 624            struct bfd_elf_version_tree *));
 625 extern boolean bfd_elf64_size_dynamic_sections
 626   PARAMS ((bfd *, const char *, const char *, boolean, const char *,
 627            const char * const *, struct bfd_link_info *, struct sec **,
 628            struct bfd_elf_version_tree *));
 629 extern void bfd_elf_set_dt_needed_name PARAMS ((bfd *, const char *));
 630 extern const char *bfd_elf_get_dt_soname PARAMS ((bfd *));
 631
 632 /* Return an upper bound on the number of bytes required to store a
 633    copy of ABFD's program header table entries.  Return -1 if an error
 634    occurs; bfd_get_error will return an appropriate code.  */
 635 extern long bfd_get_elf_phdr_upper_bound PARAMS ((bfd *abfd));
 636
 637 /* Copy ABFD's program header table entries to *PHDRS.  The entries
 638    will be stored as an array of Elf_Internal_Phdr structures, as
 639    defined in include/elf/internal.h.  To find out how large the
 640    buffer needs to be, call bfd_get_elf_phdr_upper_bound.
 641
 642    Return the number of program header table entries read, or -1 if an
 643    error occurs; bfd_get_error will return an appropriate code.  */
 644 extern int bfd_get_elf_phdrs PARAMS ((bfd *abfd, void *phdrs));
 645
 646 /* Return the arch_size field of an elf bfd, or -1 if not elf.  */
 647 extern int bfd_elf_get_arch_size PARAMS ((bfd *));
 648
 649 /* Return true if address "naturally" sign extends, or -1 if not elf. */
 650 extern int bfd_elf_get_sign_extend_vma PARAMS ((bfd *));
 651
 652 /* SunOS shared library support routines for the linker.  */
 653
 654 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list
 655   PARAMS ((bfd *, struct bfd_link_info *));
 656 extern boolean bfd_sunos_record_link_assignment
 657   PARAMS ((bfd *, struct bfd_link_info *, const char *));
 658 extern boolean bfd_sunos_size_dynamic_sections
 659   PARAMS ((bfd *, struct bfd_link_info *, struct sec **, struct sec **,
 660            struct sec **));
 661
 662 /* Linux shared library support routines for the linker.  */
 663
 664 extern boolean bfd_i386linux_size_dynamic_sections
 665   PARAMS ((bfd *, struct bfd_link_info *));
 666 extern boolean bfd_m68klinux_size_dynamic_sections
 667   PARAMS ((bfd *, struct bfd_link_info *));
 668 extern boolean bfd_sparclinux_size_dynamic_sections
 669   PARAMS ((bfd *, struct bfd_link_info *));
 670
 671 /* mmap hacks */
 672
 673 struct _bfd_window_internal;
 674 typedef struct _bfd_window_internal bfd_window_internal;
 675
 676 typedef struct _bfd_window {
 677   /* What the user asked for.  */
 678   PTR data;
 679   bfd_size_type size;
 680   /* The actual window used by BFD.  Small user-requested read-only
 681      regions sharing a page may share a single window into the object
 682      file.  Read-write versions shouldn't until I've fixed things to
 683      keep track of which portions have been claimed by the
 684      application; don't want to give the same region back when the
 685      application wants two writable copies!  */
 686   struct _bfd_window_internal *i;
 687 } bfd_window;
 688
 689 extern void bfd_init_window PARAMS ((bfd_window *));
 690 extern void bfd_free_window PARAMS ((bfd_window *));
 691 extern boolean bfd_get_file_window
 692   PARAMS ((bfd *, file_ptr, bfd_size_type, bfd_window *, boolean));
 693
 694 /* XCOFF support routines for the linker.  */
 695
 696 extern boolean bfd_xcoff_link_record_set
 697   PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
 698            bfd_size_type));
 699 extern boolean bfd_xcoff_import_symbol
 700   PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
 701            bfd_vma, const char *, const char *, const char *));
 702 extern boolean bfd_xcoff_export_symbol
 703   PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
 704            boolean));
 705 extern boolean bfd_xcoff_link_count_reloc
 706   PARAMS ((bfd *, struct bfd_link_info *, const char *));
 707 extern boolean bfd_xcoff_record_link_assignment
 708   PARAMS ((bfd *, struct bfd_link_info *, const char *));
 709 extern boolean bfd_xcoff_size_dynamic_sections
 710   PARAMS ((bfd *, struct bfd_link_info *, const char *, const char *,
 711            unsigned long, unsigned long, unsigned long, boolean,
 712            int, boolean, boolean, struct sec **));
 713
 714 /* Externally visible COFF routines.  */
 715
 716 #if defined(__STDC__) || defined(ALMOST_STDC)
 717 struct internal_syment;
 718 union internal_auxent;
 719 #endif
 720
 721 extern boolean bfd_coff_get_syment
 722   PARAMS ((bfd *, struct symbol_cache_entry *, struct internal_syment *));
 723
 724 extern boolean bfd_coff_get_auxent
 725   PARAMS ((bfd *, struct symbol_cache_entry *, int, union internal_auxent *));
 726
 727 extern boolean bfd_coff_set_symbol_class
 728   PARAMS ((bfd *, struct symbol_cache_entry *, unsigned int));
 729
 730 /* ARM Interworking support.  Called from linker.  */
 731 extern boolean bfd_arm_allocate_interworking_sections
 732   PARAMS ((struct bfd_link_info *));
 733
 734 extern boolean bfd_arm_process_before_allocation
 735   PARAMS ((bfd *, struct bfd_link_info *, int));
 736
 737 extern boolean bfd_arm_get_bfd_for_interworking
 738   PARAMS ((bfd *, struct bfd_link_info *));
 739
 740 /* PE ARM Interworking support.  Called from linker.  */
 741 extern boolean bfd_arm_pe_allocate_interworking_sections
 742   PARAMS ((struct bfd_link_info *));
 743
 744 extern boolean bfd_arm_pe_process_before_allocation
 745   PARAMS ((bfd *, struct bfd_link_info *, int));
 746
 747 extern boolean bfd_arm_pe_get_bfd_for_interworking
 748   PARAMS ((bfd *, struct bfd_link_info *));
 749
 750 /* ELF ARM Interworking support.  Called from linker.  */
 751 extern boolean bfd_elf32_arm_allocate_interworking_sections
 752   PARAMS ((struct bfd_link_info *));
 753
 754 extern boolean bfd_elf32_arm_process_before_allocation
 755   PARAMS ((bfd *, struct bfd_link_info *, int));
 756
 757 extern boolean bfd_elf32_arm_get_bfd_for_interworking
 758   PARAMS ((bfd *, struct bfd_link_info *));
 759
 760 /* TI COFF load page support. */
 761 extern void bfd_ticoff_set_section_load_page
 762   PARAMS ((struct sec *, int));
 763
 764 extern int bfd_ticoff_get_section_load_page
 765   PARAMS ((struct sec *));
 766
 767 /* And more from the source.  */
 768 void
 769 bfd_init PARAMS ((void));
 770
 771 bfd *
 772 bfd_openr PARAMS ((CONST char *filename, CONST char *target));
 773
 774 bfd *
 775 bfd_fdopenr PARAMS ((CONST char *filename, CONST char *target, int fd));
 776
 777 bfd *
 778 bfd_openstreamr PARAMS ((const char *, const char *, PTR));
 779
 780 bfd *
 781 bfd_openw PARAMS ((CONST char *filename, CONST char *target));
 782
 783 boolean
 784 bfd_close PARAMS ((bfd *abfd));
 785
 786 boolean
 787 bfd_close_all_done PARAMS ((bfd *));
 788
 789 bfd *
 790 bfd_create PARAMS ((CONST char *filename, bfd *templ));
 791
 792 boolean
 793 bfd_make_writable PARAMS ((bfd *abfd));
 794
 795 boolean
 796 bfd_make_readable PARAMS ((bfd *abfd));
 797
 798
 799 /* Byte swapping macros for user section data.  */
 800
 801 #define bfd_put_8(abfd, val, ptr) \
 802                 ((void) (*((unsigned char *)(ptr)) = (unsigned char)(val)))
 803 #define bfd_put_signed_8 \
 804                bfd_put_8
 805 #define bfd_get_8(abfd, ptr) \
 806                 (*(unsigned char *)(ptr))
 807 #define bfd_get_signed_8(abfd, ptr) \
 808                ((*(unsigned char *)(ptr) ^ 0x80) - 0x80)
 809
 810 #define bfd_put_16(abfd, val, ptr) \
 811                 BFD_SEND(abfd, bfd_putx16, ((val),(ptr)))
 812 #define bfd_put_signed_16 \
 813                 bfd_put_16
 814 #define bfd_get_16(abfd, ptr) \
 815                 BFD_SEND(abfd, bfd_getx16, (ptr))
 816 #define bfd_get_signed_16(abfd, ptr) \
 817                 BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
 818
 819 #define bfd_put_32(abfd, val, ptr) \
 820                 BFD_SEND(abfd, bfd_putx32, ((val),(ptr)))
 821 #define bfd_put_signed_32 \
 822                 bfd_put_32
 823 #define bfd_get_32(abfd, ptr) \
 824                 BFD_SEND(abfd, bfd_getx32, (ptr))
 825 #define bfd_get_signed_32(abfd, ptr) \
 826                 BFD_SEND(abfd, bfd_getx_signed_32, (ptr))
 827
 828 #define bfd_put_64(abfd, val, ptr) \
 829                 BFD_SEND(abfd, bfd_putx64, ((val), (ptr)))
 830 #define bfd_put_signed_64 \
 831                 bfd_put_64
 832 #define bfd_get_64(abfd, ptr) \
 833                 BFD_SEND(abfd, bfd_getx64, (ptr))
 834 #define bfd_get_signed_64(abfd, ptr) \
 835                 BFD_SEND(abfd, bfd_getx_signed_64, (ptr))
 836
 837 #define bfd_get(bits, abfd, ptr)                               \
 838                 ((bits) == 8 ? bfd_get_8 (abfd, ptr)           \
 839                 : (bits) == 16 ? bfd_get_16 (abfd, ptr)        \
 840                 : (bits) == 32 ? bfd_get_32 (abfd, ptr)        \
 841                 : (bits) == 64 ? bfd_get_64 (abfd, ptr)        \
 842                 : (abort (), (bfd_vma) - 1))
 843
 844 #define bfd_put(bits, abfd, val, ptr)                          \
 845                 ((bits) == 8 ? bfd_put_8 (abfd, val, ptr)      \
 846                 : (bits) == 16 ? bfd_put_16 (abfd, val, ptr)   \
 847                 : (bits) == 32 ? bfd_put_32 (abfd, val, ptr)   \
 848                 : (bits) == 64 ? bfd_put_64 (abfd, val, ptr)   \
 849                 : (abort (), (void) 0))
 850
 851
 852 /* Byte swapping macros for file header data.  */
 853
 854 #define bfd_h_put_8(abfd, val, ptr) \
 855                bfd_put_8 (abfd, val, ptr)
 856 #define bfd_h_put_signed_8(abfd, val, ptr) \
 857                bfd_put_8 (abfd, val, ptr)
 858 #define bfd_h_get_8(abfd, ptr) \
 859                bfd_get_8 (abfd, ptr)
 860 #define bfd_h_get_signed_8(abfd, ptr) \
 861                bfd_get_signed_8 (abfd, ptr)
 862
 863 #define bfd_h_put_16(abfd, val, ptr) \
 864                 BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
 865 #define bfd_h_put_signed_16 \
 866                 bfd_h_put_16
 867 #define bfd_h_get_16(abfd, ptr) \
 868                 BFD_SEND(abfd, bfd_h_getx16,(ptr))
 869 #define bfd_h_get_signed_16(abfd, ptr) \
 870                 BFD_SEND(abfd, bfd_h_getx_signed_16, (ptr))
 871
 872 #define bfd_h_put_32(abfd, val, ptr) \
 873                 BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
 874 #define bfd_h_put_signed_32 \
 875                 bfd_h_put_32
 876 #define bfd_h_get_32(abfd, ptr) \
 877                 BFD_SEND(abfd, bfd_h_getx32,(ptr))
 878 #define bfd_h_get_signed_32(abfd, ptr) \
 879                 BFD_SEND(abfd, bfd_h_getx_signed_32, (ptr))
 880
 881 #define bfd_h_put_64(abfd, val, ptr) \
 882                 BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
 883 #define bfd_h_put_signed_64 \
 884                 bfd_h_put_64
 885 #define bfd_h_get_64(abfd, ptr) \
 886                 BFD_SEND(abfd, bfd_h_getx64,(ptr))
 887 #define bfd_h_get_signed_64(abfd, ptr) \
 888                 BFD_SEND(abfd, bfd_h_getx_signed_64, (ptr))
 889
 890 /* This structure is used for a comdat section, as in PE.  A comdat
 891    section is associated with a particular symbol.  When the linker
 892    sees a comdat section, it keeps only one of the sections with a
 893    given name and associated with a given symbol.  */
 894
 895 struct bfd_comdat_info
 896 {
 897   /* The name of the symbol associated with a comdat section.  */
 898   const char *name;
 899
 900   /* The local symbol table index of the symbol associated with a
 901      comdat section.  This is only meaningful to the object file format
 902      specific code; it is not an index into the list returned by
 903      bfd_canonicalize_symtab.  */
 904   long symbol;
 905
 906   /* If this section is being discarded, the linker uses this field
 907      to point to the input section which is being kept.  */
 908   struct sec *sec;
 909 };
 910
 911 typedef struct sec
 912 {
 913   /* The name of the section; the name isn't a copy, the pointer is
 914      the same as that passed to bfd_make_section.  */
 915
 916   const char *name;
 917
 918   /* A unique sequence number.  */
 919
 920   int id;
 921
 922   /* Which section is it; 0..nth.  */
 923
 924   int index;
 925
 926   /* The next section in the list belonging to the BFD, or NULL.  */
 927
 928   struct sec *next;
 929
 930   /* The field flags contains attributes of the section. Some
 931      flags are read in from the object file, and some are
 932      synthesized from other information.  */
 933
 934   flagword flags;
 935
 936 #define SEC_NO_FLAGS   0x000
 937
 938   /* Tells the OS to allocate space for this section when loading.
 939      This is clear for a section containing debug information only.  */
 940 #define SEC_ALLOC      0x001
 941
 942   /* Tells the OS to load the section from the file when loading.
 943      This is clear for a .bss section.  */
 944 #define SEC_LOAD       0x002
 945
 946   /* The section contains data still to be relocated, so there is
 947      some relocation information too.  */
 948 #define SEC_RELOC      0x004
 949
 950 #if 0   /* Obsolete ? */
 951 #define SEC_BALIGN     0x008
 952 #endif
 953
 954   /* A signal to the OS that the section contains read only data.  */
 955 #define SEC_READONLY   0x010
 956
 957   /* The section contains code only.  */
 958 #define SEC_CODE       0x020
 959
 960   /* The section contains data only.  */
 961 #define SEC_DATA       0x040
 962
 963   /* The section will reside in ROM.  */
 964 #define SEC_ROM        0x080
 965
 966   /* The section contains constructor information. This section
 967      type is used by the linker to create lists of constructors and
 968      destructors used by <<g++>>. When a back end sees a symbol
 969      which should be used in a constructor list, it creates a new
 970      section for the type of name (e.g., <<__CTOR_LIST__>>), attaches
 971      the symbol to it, and builds a relocation. To build the lists
 972      of constructors, all the linker has to do is catenate all the
 973      sections called <<__CTOR_LIST__>> and relocate the data
 974      contained within - exactly the operations it would peform on
 975      standard data.  */
 976 #define SEC_CONSTRUCTOR 0x100
 977
 978   /* The section is a constructor, and should be placed at the
 979      end of the text, data, or bss section(?).  */
 980 #define SEC_CONSTRUCTOR_TEXT 0x1100
 981 #define SEC_CONSTRUCTOR_DATA 0x2100
 982 #define SEC_CONSTRUCTOR_BSS  0x3100
 983
 984   /* The section has contents - a data section could be
 985      <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>; a debug section could be
 986      <<SEC_HAS_CONTENTS>>  */
 987 #define SEC_HAS_CONTENTS 0x200
 988
 989   /* An instruction to the linker to not output the section
 990      even if it has information which would normally be written.  */
 991 #define SEC_NEVER_LOAD 0x400
 992
 993   /* The section is a COFF shared library section.  This flag is
 994      only for the linker.  If this type of section appears in
 995      the input file, the linker must copy it to the output file
 996      without changing the vma or size.  FIXME: Although this
 997      was originally intended to be general, it really is COFF
 998      specific (and the flag was renamed to indicate this).  It
 999      might be cleaner to have some more general mechanism to
1000      allow the back end to control what the linker does with
1001      sections.  */
1002 #define SEC_COFF_SHARED_LIBRARY 0x800
1003
1004   /* The section contains common symbols (symbols may be defined
1005      multiple times, the value of a symbol is the amount of
1006      space it requires, and the largest symbol value is the one
1007      used).  Most targets have exactly one of these (which we
1008      translate to bfd_com_section_ptr), but ECOFF has two.  */
1009 #define SEC_IS_COMMON 0x8000
1010
1011   /* The section contains only debugging information.  For
1012      example, this is set for ELF .debug and .stab sections.
1013      strip tests this flag to see if a section can be
1014      discarded.  */
1015 #define SEC_DEBUGGING 0x10000
1016
1017   /* The contents of this section are held in memory pointed to
1018      by the contents field.  This is checked by bfd_get_section_contents,
1019      and the data is retrieved from memory if appropriate.  */
1020 #define SEC_IN_MEMORY 0x20000
1021
1022   /* The contents of this section are to be excluded by the
1023      linker for executable and shared objects unless those
1024      objects are to be further relocated.  */
1025 #define SEC_EXCLUDE 0x40000
1026
1027   /* The contents of this section are to be sorted by the
1028      based on the address specified in the associated symbol
1029      table.  */
1030 #define SEC_SORT_ENTRIES 0x80000
1031
1032   /* When linking, duplicate sections of the same name should be
1033      discarded, rather than being combined into a single section as
1034      is usually done.  This is similar to how common symbols are
1035      handled.  See SEC_LINK_DUPLICATES below.  */
1036 #define SEC_LINK_ONCE 0x100000
1037
1038   /* If SEC_LINK_ONCE is set, this bitfield describes how the linker
1039      should handle duplicate sections.  */
1040 #define SEC_LINK_DUPLICATES 0x600000
1041
1042   /* This value for SEC_LINK_DUPLICATES means that duplicate
1043      sections with the same name should simply be discarded.  */
1044 #define SEC_LINK_DUPLICATES_DISCARD 0x0
1045
1046   /* This value for SEC_LINK_DUPLICATES means that the linker
1047      should warn if there are any duplicate sections, although
1048      it should still only link one copy.  */
1049 #define SEC_LINK_DUPLICATES_ONE_ONLY 0x200000
1050
1051   /* This value for SEC_LINK_DUPLICATES means that the linker
1052      should warn if any duplicate sections are a different size.  */
1053 #define SEC_LINK_DUPLICATES_SAME_SIZE 0x400000
1054
1055   /* This value for SEC_LINK_DUPLICATES means that the linker
1056      should warn if any duplicate sections contain different
1057      contents.  */
1058 #define SEC_LINK_DUPLICATES_SAME_CONTENTS 0x600000
1059
1060   /* This section was created by the linker as part of dynamic
1061      relocation or other arcane processing.  It is skipped when
1062      going through the first-pass output, trusting that someone
1063      else up the line will take care of it later.  */
1064 #define SEC_LINKER_CREATED 0x800000
1065
1066   /* This section should not be subject to garbage collection.  */
1067 #define SEC_KEEP 0x1000000
1068
1069   /* This section contains "short" data, and should be placed
1070      "near" the GP.  */
1071 #define SEC_SMALL_DATA 0x2000000
1072
1073   /* This section contains data which may be shared with other
1074      executables or shared objects.  */
1075 #define SEC_SHARED 0x4000000
1076
1077   /* When a section with this flag is being linked, then if the size of
1078      the input section is less than a page, it should not cross a page
1079      boundary.  If the size of the input section is one page or more, it
1080      should be aligned on a page boundary.  */
1081 #define SEC_BLOCK 0x8000000
1082
1083   /* Conditionally link this section; do not link if there are no
1084      references found to any symbol in the section.  */
1085 #define SEC_CLINK 0x10000000
1086
1087   /*  End of section flags.  */
1088
1089   /* Some internal packed boolean fields.  */
1090
1091   /* See the vma field.  */
1092   unsigned int user_set_vma : 1;
1093
1094   /* Whether relocations have been processed.  */
1095   unsigned int reloc_done : 1;
1096
1097   /* A mark flag used by some of the linker backends.  */
1098   unsigned int linker_mark : 1;
1099
1100   /* A mark flag used by some linker backends for garbage collection.  */
1101   unsigned int gc_mark : 1;
1102
1103   /* End of internal packed boolean fields.  */
1104
1105   /*  The virtual memory address of the section - where it will be
1106       at run time.  The symbols are relocated against this.  The
1107       user_set_vma flag is maintained by bfd; if it's not set, the
1108       backend can assign addresses (for example, in <<a.out>>, where
1109       the default address for <<.data>> is dependent on the specific
1110       target and various flags).  */
1111
1112   bfd_vma vma;
1113
1114   /*  The load address of the section - where it would be in a
1115       rom image; really only used for writing section header
1116       information. */
1117
1118   bfd_vma lma;
1119
1120   /* The size of the section in octets, as it will be output.
1121      Contains a value even if the section has no contents (e.g., the
1122      size of <<.bss>>).  This will be filled in after relocation.  */
1123
1124   bfd_size_type _cooked_size;
1125
1126   /* The original size on disk of the section, in octets.  Normally this
1127      value is the same as the size, but if some relaxing has
1128      been done, then this value will be bigger.  */
1129
1130   bfd_size_type _raw_size;
1131
1132   /* If this section is going to be output, then this value is the
1133      offset in *bytes* into the output section of the first byte in the
1134      input section (byte ==> smallest addressable unit on the
1135      target).  In most cases, if this was going to start at the
1136      100th octet (8-bit quantity) in the output section, this value
1137      would be 100.  However, if the target byte size is 16 bits
1138      (bfd_octets_per_byte is "2"), this value would be 50.  */
1139
1140   bfd_vma output_offset;
1141
1142   /* The output section through which to map on output.  */
1143
1144   struct sec *output_section;
1145
1146   /* The alignment requirement of the section, as an exponent of 2 -
1147      e.g., 3 aligns to 2^3 (or 8).  */
1148
1149   unsigned int alignment_power;
1150
1151   /* If an input section, a pointer to a vector of relocation
1152      records for the data in this section.  */
1153
1154   struct reloc_cache_entry *relocation;
1155
1156   /* If an output section, a pointer to a vector of pointers to
1157      relocation records for the data in this section.  */
1158
1159   struct reloc_cache_entry **orelocation;
1160
1161   /* The number of relocation records in one of the above  */
1162
1163   unsigned reloc_count;
1164
1165   /* Information below is back end specific - and not always used
1166      or updated.  */
1167
1168   /* File position of section data.  */
1169
1170   file_ptr filepos;
1171
1172   /* File position of relocation info.  */
1173
1174   file_ptr rel_filepos;
1175
1176   /* File position of line data.  */
1177
1178   file_ptr line_filepos;
1179
1180   /* Pointer to data for applications.  */
1181
1182   PTR userdata;
1183
1184   /* If the SEC_IN_MEMORY flag is set, this points to the actual
1185      contents.  */
1186   unsigned char *contents;
1187
1188   /* Attached line number information.  */
1189
1190   alent *lineno;
1191
1192   /* Number of line number records.  */
1193
1194   unsigned int lineno_count;
1195
1196   /* Optional information about a COMDAT entry; NULL if not COMDAT.  */
1197
1198   struct bfd_comdat_info *comdat;
1199
1200   /* When a section is being output, this value changes as more
1201      linenumbers are written out.  */
1202
1203   file_ptr moving_line_filepos;
1204
1205   /* What the section number is in the target world.  */
1206
1207   int target_index;
1208
1209   PTR used_by_bfd;
1210
1211   /* If this is a constructor section then here is a list of the
1212      relocations created to relocate items within it.  */
1213
1214   struct relent_chain *constructor_chain;
1215
1216   /* The BFD which owns the section.  */
1217
1218   bfd *owner;
1219
1220   /* A symbol which points at this section only */
1221   struct symbol_cache_entry *symbol;
1222   struct symbol_cache_entry **symbol_ptr_ptr;
1223
1224   struct bfd_link_order *link_order_head;
1225   struct bfd_link_order *link_order_tail;
1226 } asection ;
1227
1228 /* These sections are global, and are managed by BFD.  The application
1229    and target back end are not permitted to change the values in
1230    these sections.  New code should use the section_ptr macros rather
1231    than referring directly to the const sections.  The const sections
1232    may eventually vanish.  */
1233 #define BFD_ABS_SECTION_NAME "*ABS*"
1234 #define BFD_UND_SECTION_NAME "*UND*"
1235 #define BFD_COM_SECTION_NAME "*COM*"
1236 #define BFD_IND_SECTION_NAME "*IND*"
1237
1238 /* the absolute section */
1239 extern const asection bfd_abs_section;
1240 #define bfd_abs_section_ptr ((asection *) &bfd_abs_section)
1241 #define bfd_is_abs_section(sec) ((sec) == bfd_abs_section_ptr)
1242 /* Pointer to the undefined section */
1243 extern const asection bfd_und_section;
1244 #define bfd_und_section_ptr ((asection *) &bfd_und_section)
1245 #define bfd_is_und_section(sec) ((sec) == bfd_und_section_ptr)
1246 /* Pointer to the common section */
1247 extern const asection bfd_com_section;
1248 #define bfd_com_section_ptr ((asection *) &bfd_com_section)
1249 /* Pointer to the indirect section */
1250 extern const asection bfd_ind_section;
1251 #define bfd_ind_section_ptr ((asection *) &bfd_ind_section)
1252 #define bfd_is_ind_section(sec) ((sec) == bfd_ind_section_ptr)
1253
1254 extern const struct symbol_cache_entry * const bfd_abs_symbol;
1255 extern const struct symbol_cache_entry * const bfd_com_symbol;
1256 extern const struct symbol_cache_entry * const bfd_und_symbol;
1257 extern const struct symbol_cache_entry * const bfd_ind_symbol;
1258 #define bfd_get_section_size_before_reloc(section) \
1259      ((section)->reloc_done ? (abort (), (bfd_size_type) 1) \
1260                             : (section)->_raw_size)
1261 #define bfd_get_section_size_after_reloc(section) \
1262      ((section)->reloc_done ? (section)->_cooked_size \
1263                             : (abort (), (bfd_size_type) 1))
1264 asection *
1265 bfd_get_section_by_name PARAMS ((bfd *abfd, const char *name));
1266
1267 asection *
1268 bfd_make_section_old_way PARAMS ((bfd *abfd, const char *name));
1269
1270 asection *
1271 bfd_make_section_anyway PARAMS ((bfd *abfd, const char *name));
1272
1273 asection *
1274 bfd_make_section PARAMS ((bfd *, const char *name));
1275
1276 boolean
1277 bfd_set_section_flags PARAMS ((bfd *abfd, asection *sec, flagword flags));
1278
1279 void
1280 bfd_map_over_sections PARAMS ((bfd *abfd,
1281     void (*func)(bfd *abfd,
1282     asection *sect,
1283     PTR obj),
1284     PTR obj));
1285
1286 boolean
1287 bfd_set_section_size PARAMS ((bfd *abfd, asection *sec, bfd_size_type val));
1288
1289 boolean
1290 bfd_set_section_contents
1291  PARAMS ((bfd *abfd,
1292     asection *section,
1293     PTR data,
1294     file_ptr offset,
1295     bfd_size_type count));
1296
1297 boolean
1298 bfd_get_section_contents
1299  PARAMS ((bfd *abfd, asection *section, PTR location,
1300     file_ptr offset, bfd_size_type count));
1301
1302 boolean
1303 bfd_copy_private_section_data PARAMS ((bfd *ibfd, asection *isec, bfd *obfd, asection *osec));
1304
1305 #define bfd_copy_private_section_data(ibfd, isection, obfd, osection) \
1306      BFD_SEND (obfd, _bfd_copy_private_section_data, \
1307                (ibfd, isection, obfd, osection))
1308 void
1309 _bfd_strip_section_from_output
1310  PARAMS ((struct bfd_link_info *info, asection *section));
1311
1312 enum bfd_architecture
1313 {
1314   bfd_arch_unknown,   /* File arch not known */
1315   bfd_arch_obscure,   /* Arch known, not one of these */
1316   bfd_arch_m68k,      /* Motorola 68xxx */
1317 #define bfd_mach_m68000 1
1318 #define bfd_mach_m68008 2
1319 #define bfd_mach_m68010 3
1320 #define bfd_mach_m68020 4
1321 #define bfd_mach_m68030 5
1322 #define bfd_mach_m68040 6
1323 #define bfd_mach_m68060 7
1324 #define bfd_mach_cpu32  8
1325   bfd_arch_vax,       /* DEC Vax */
1326   bfd_arch_i960,      /* Intel 960 */
1327     /* The order of the following is important.
1328        lower number indicates a machine type that
1329        only accepts a subset of the instructions
1330        available to machines with higher numbers.
1331        The exception is the "ca", which is
1332        incompatible with all other machines except
1333        "core". */
1334
1335 #define bfd_mach_i960_core      1
1336 #define bfd_mach_i960_ka_sa     2
1337 #define bfd_mach_i960_kb_sb     3
1338 #define bfd_mach_i960_mc        4
1339 #define bfd_mach_i960_xa        5
1340 #define bfd_mach_i960_ca        6
1341 #define bfd_mach_i960_jx        7
1342 #define bfd_mach_i960_hx        8
1343
1344   bfd_arch_a29k,      /* AMD 29000 */
1345   bfd_arch_sparc,     /* SPARC */
1346 #define bfd_mach_sparc                 1
1347 /* The difference between v8plus and v9 is that v9 is a true 64 bit env.  */
1348 #define bfd_mach_sparc_sparclet        2
1349 #define bfd_mach_sparc_sparclite       3
1350 #define bfd_mach_sparc_v8plus          4
1351 #define bfd_mach_sparc_v8plusa         5 /* with ultrasparc add'ns */
1352 #define bfd_mach_sparc_sparclite_le    6
1353 #define bfd_mach_sparc_v9              7
1354 #define bfd_mach_sparc_v9a             8 /* with ultrasparc add'ns */
1355 /* Nonzero if MACH has the v9 instruction set.  */
1356 #define bfd_mach_sparc_v9_p(mach) \
1357   ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9a)
1358   bfd_arch_mips,      /* MIPS Rxxxx */
1359 #define bfd_mach_mips3000              3000
1360 #define bfd_mach_mips3900              3900
1361 #define bfd_mach_mips4000              4000
1362 #define bfd_mach_mips4010              4010
1363 #define bfd_mach_mips4100              4100
1364 #define bfd_mach_mips4111              4111
1365 #define bfd_mach_mips4300              4300
1366 #define bfd_mach_mips4400              4400
1367 #define bfd_mach_mips4600              4600
1368 #define bfd_mach_mips4650              4650
1369 #define bfd_mach_mips5000              5000
1370 #define bfd_mach_mips6000              6000
1371 #define bfd_mach_mips8000              8000
1372 #define bfd_mach_mips10000             10000
1373 #define bfd_mach_mips16                16
1374   bfd_arch_i386,      /* Intel 386 */
1375 #define bfd_mach_i386_i386 0
1376 #define bfd_mach_i386_i8086 1
1377 #define bfd_mach_i386_i386_intel_syntax 2
1378   bfd_arch_we32k,     /* AT&T WE32xxx */
1379   bfd_arch_tahoe,     /* CCI/Harris Tahoe */
1380   bfd_arch_i860,      /* Intel 860 */
1381   bfd_arch_i370,      /* IBM 360/370 Mainframes */
1382   bfd_arch_romp,      /* IBM ROMP PC/RT */
1383   bfd_arch_alliant,   /* Alliant */
1384   bfd_arch_convex,    /* Convex */
1385   bfd_arch_m88k,      /* Motorola 88xxx */
1386   bfd_arch_pyramid,   /* Pyramid Technology */
1387   bfd_arch_h8300,     /* Hitachi H8/300 */
1388 #define bfd_mach_h8300   1
1389 #define bfd_mach_h8300h  2
1390 #define bfd_mach_h8300s  3
1391   bfd_arch_powerpc,   /* PowerPC */
1392 #define bfd_mach_ppc           0
1393 #define bfd_mach_ppc_403       403
1394 #define bfd_mach_ppc_403gc     4030
1395 #define bfd_mach_ppc_505       505
1396 #define bfd_mach_ppc_601       601
1397 #define bfd_mach_ppc_602       602
1398 #define bfd_mach_ppc_603       603
1399 #define bfd_mach_ppc_ec603e    6031
1400 #define bfd_mach_ppc_604       604
1401 #define bfd_mach_ppc_620       620
1402 #define bfd_mach_ppc_630       630
1403 #define bfd_mach_ppc_750       750
1404 #define bfd_mach_ppc_860       860
1405 #define bfd_mach_ppc_a35       35
1406 #define bfd_mach_ppc_rs64ii    642
1407 #define bfd_mach_ppc_rs64iii   643
1408 #define bfd_mach_ppc_7400      7400
1409   bfd_arch_rs6000,    /* IBM RS/6000 */
1410 #define bfd_mach_rs6k          0
1411 #define bfd_mach_rs6k_rs1      6001
1412 #define bfd_mach_rs6k_rsc      6003
1413 #define bfd_mach_rs6k_rs2      6002
1414   bfd_arch_hppa,      /* HP PA RISC */
1415   bfd_arch_d10v,      /* Mitsubishi D10V */
1416 #define bfd_mach_d10v          0
1417 #define bfd_mach_d10v_ts2      2
1418 #define bfd_mach_d10v_ts3      3
1419   bfd_arch_d30v,      /* Mitsubishi D30V */
1420   bfd_arch_m68hc11,   /* Motorola 68HC11 */
1421   bfd_arch_m68hc12,   /* Motorola 68HC12 */
1422   bfd_arch_z8k,       /* Zilog Z8000 */
1423 #define bfd_mach_z8001         1
1424 #define bfd_mach_z8002         2
1425   bfd_arch_h8500,     /* Hitachi H8/500 */
1426   bfd_arch_sh,        /* Hitachi SH */
1427 #define bfd_mach_sh            0
1428 #define bfd_mach_sh2        0x20
1429 #define bfd_mach_sh_dsp     0x2d
1430 #define bfd_mach_sh3        0x30
1431 #define bfd_mach_sh3_dsp    0x3d
1432 #define bfd_mach_sh3e       0x3e
1433 #define bfd_mach_sh4        0x40
1434   bfd_arch_alpha,     /* Dec Alpha */
1435 #define bfd_mach_alpha_ev4  0x10
1436 #define bfd_mach_alpha_ev5  0x20
1437 #define bfd_mach_alpha_ev6  0x30
1438   bfd_arch_arm,       /* Advanced Risc Machines ARM */
1439 #define bfd_mach_arm_2         1
1440 #define bfd_mach_arm_2a        2
1441 #define bfd_mach_arm_3         3
1442 #define bfd_mach_arm_3M        4
1443 #define bfd_mach_arm_4         5
1444 #define bfd_mach_arm_4T        6
1445 #define bfd_mach_arm_5         7
1446 #define bfd_mach_arm_5T        8
1447   bfd_arch_ns32k,     /* National Semiconductors ns32000 */
1448   bfd_arch_w65,       /* WDC 65816 */
1449   bfd_arch_tic30,     /* Texas Instruments TMS320C30 */
1450   bfd_arch_tic54x,    /* Texas Instruments TMS320C54X */
1451   bfd_arch_tic80,     /* TI TMS320c80 (MVP) */
1452   bfd_arch_v850,      /* NEC V850 */
1453 #define bfd_mach_v850          0
1454 #define bfd_mach_v850e         'E'
1455 #define bfd_mach_v850ea        'A'
1456   bfd_arch_arc,       /* Argonaut RISC Core */
1457 #define bfd_mach_arc_base 0
1458   bfd_arch_m32r,      /* Mitsubishi M32R/D */
1459 #define bfd_mach_m32r          0 /* backwards compatibility */
1460 #define bfd_mach_m32rx         'x'
1461   bfd_arch_mn10200,   /* Matsushita MN10200 */
1462   bfd_arch_mn10300,   /* Matsushita MN10300 */
1463 #define bfd_mach_mn10300               300
1464 #define bfd_mach_am33          330
1465   bfd_arch_fr30,
1466 #define bfd_mach_fr30          0x46523330
1467   bfd_arch_mcore,
1468   bfd_arch_ia64,      /* HP/Intel ia64 */
1469   bfd_arch_pj,
1470   bfd_arch_avr,       /* Atmel AVR microcontrollers */
1471 #define bfd_mach_avr1          1
1472 #define bfd_mach_avr2          2
1473 #define bfd_mach_avr3          3
1474 #define bfd_mach_avr4          4
1475 #define bfd_mach_avr5          5
1476   bfd_arch_last
1477   };
1478
1479 typedef struct bfd_arch_info
1480 {
1481   int bits_per_word;
1482   int bits_per_address;
1483   int bits_per_byte;
1484   enum bfd_architecture arch;
1485   unsigned long mach;
1486   const char *arch_name;
1487   const char *printable_name;
1488   unsigned int section_align_power;
1489   /* True if this is the default machine for the architecture.  */
1490   boolean the_default;
1491   const struct bfd_arch_info * (*compatible)
1492        PARAMS ((const struct bfd_arch_info *a,
1493                 const struct bfd_arch_info *b));
1494
1495   boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
1496
1497   const struct bfd_arch_info *next;
1498 } bfd_arch_info_type;
1499 const char *
1500 bfd_printable_name PARAMS ((bfd *abfd));
1501
1502 const bfd_arch_info_type *
1503 bfd_scan_arch PARAMS ((const char *string));
1504
1505 const char **
1506 bfd_arch_list PARAMS ((void));
1507
1508 const bfd_arch_info_type *
1509 bfd_arch_get_compatible PARAMS ((
1510     const bfd *abfd,
1511     const bfd *bbfd));
1512
1513 void
1514 bfd_set_arch_info PARAMS ((bfd *abfd, const bfd_arch_info_type *arg));
1515
1516 enum bfd_architecture
1517 bfd_get_arch PARAMS ((bfd *abfd));
1518
1519 unsigned long
1520 bfd_get_mach PARAMS ((bfd *abfd));
1521
1522 unsigned int
1523 bfd_arch_bits_per_byte PARAMS ((bfd *abfd));
1524
1525 unsigned int
1526 bfd_arch_bits_per_address PARAMS ((bfd *abfd));
1527
1528 const bfd_arch_info_type *
1529 bfd_get_arch_info PARAMS ((bfd *abfd));
1530
1531 const bfd_arch_info_type *
1532 bfd_lookup_arch
1533  PARAMS ((enum bfd_architecture
1534     arch,
1535     unsigned long machine));
1536
1537 const char *
1538 bfd_printable_arch_mach
1539  PARAMS ((enum bfd_architecture arch, unsigned long machine));
1540
1541 unsigned int
1542 bfd_octets_per_byte PARAMS ((bfd *abfd));
1543
1544 unsigned int
1545 bfd_arch_mach_octets_per_byte PARAMS ((enum bfd_architecture arch,
1546     unsigned long machine));
1547
1548 typedef enum bfd_reloc_status
1549 {
1550        /* No errors detected */
1551   bfd_reloc_ok,
1552
1553        /* The relocation was performed, but there was an overflow. */
1554   bfd_reloc_overflow,
1555
1556        /* The address to relocate was not within the section supplied. */
1557   bfd_reloc_outofrange,
1558
1559        /* Used by special functions */
1560   bfd_reloc_continue,
1561
1562        /* Unsupported relocation size requested. */
1563   bfd_reloc_notsupported,
1564
1565        /* Unused */
1566   bfd_reloc_other,
1567
1568        /* The symbol to relocate against was undefined. */
1569   bfd_reloc_undefined,
1570
1571        /* The relocation was performed, but may not be ok - presently
1572           generated only when linking i960 coff files with i960 b.out
1573           symbols.  If this type is returned, the error_message argument
1574           to bfd_perform_relocation will be set.  */
1575   bfd_reloc_dangerous
1576  }
1577  bfd_reloc_status_type;
1578
1579
1580 typedef struct reloc_cache_entry
1581 {
1582        /* A pointer into the canonical table of pointers  */
1583   struct symbol_cache_entry **sym_ptr_ptr;
1584
1585        /* offset in section */
1586   bfd_size_type address;
1587
1588        /* addend for relocation value */
1589   bfd_vma addend;
1590
1591        /* Pointer to how to perform the required relocation */
1592   reloc_howto_type *howto;
1593
1594 } arelent;
1595 enum complain_overflow
1596 {
1597        /* Do not complain on overflow. */
1598   complain_overflow_dont,
1599
1600        /* Complain if the bitfield overflows, whether it is considered
1601           as signed or unsigned. */
1602   complain_overflow_bitfield,
1603
1604        /* Complain if the value overflows when considered as signed
1605           number. */
1606   complain_overflow_signed,
1607
1608        /* Complain if the value overflows when considered as an
1609           unsigned number. */
1610   complain_overflow_unsigned
1611 };
1612
1613 struct reloc_howto_struct
1614 {
1615        /*  The type field has mainly a documentary use - the back end can
1616            do what it wants with it, though normally the back end's
1617            external idea of what a reloc number is stored
1618            in this field. For example, a PC relative word relocation
1619            in a coff environment has the type 023 - because that's
1620            what the outside world calls a R_PCRWORD reloc. */
1621   unsigned int type;
1622
1623        /*  The value the final relocation is shifted right by. This drops
1624            unwanted data from the relocation.  */
1625   unsigned int rightshift;
1626
1627        /*  The size of the item to be relocated.  This is *not* a
1628            power-of-two measure.  To get the number of bytes operated
1629            on by a type of relocation, use bfd_get_reloc_size.  */
1630   int size;
1631
1632        /*  The number of bits in the item to be relocated.  This is used
1633            when doing overflow checking.  */
1634   unsigned int bitsize;
1635
1636        /*  Notes that the relocation is relative to the location in the
1637            data section of the addend. The relocation function will
1638            subtract from the relocation value the address of the location
1639            being relocated. */
1640   boolean pc_relative;
1641
1642        /*  The bit position of the reloc value in the destination.
1643            The relocated value is left shifted by this amount. */
1644   unsigned int bitpos;
1645
1646        /* What type of overflow error should be checked for when
1647           relocating. */
1648   enum complain_overflow complain_on_overflow;
1649
1650        /* If this field is non null, then the supplied function is
1651           called rather than the normal function. This allows really
1652           strange relocation methods to be accomodated (e.g., i960 callj
1653           instructions). */
1654   bfd_reloc_status_type (*special_function)
1655                                    PARAMS ((bfd *abfd,
1656                                             arelent *reloc_entry,
1657                                             struct symbol_cache_entry *symbol,
1658                                             PTR data,
1659                                             asection *input_section,
1660                                             bfd *output_bfd,
1661                                             char **error_message));
1662
1663        /* The textual name of the relocation type. */
1664   char *name;
1665
1666        /* Some formats record a relocation addend in the section contents
1667           rather than with the relocation.  For ELF formats this is the
1668           distinction between USE_REL and USE_RELA (though the code checks
1669           for USE_REL == 1/0).  The value of this field is TRUE if the
1670           addend is recorded with the section contents; when performing a
1671           partial link (ld -r) the section contents (the data) will be
1672           modified.  The value of this field is FALSE if addends are
1673           recorded with the relocation (in arelent.addend); when performing
1674           a partial link the relocation will be modified.
1675           All relocations for all ELF USE_RELA targets should set this field
1676           to FALSE (values of TRUE should be looked on with suspicion).
1677           However, the converse is not true: not all relocations of all ELF
1678           USE_REL targets set this field to TRUE.  Why this is so is peculiar
1679           to each particular target.  For relocs that aren't used in partial
1680           links (e.g. GOT stuff) it doesn't matter what this is set to.  */
1681   boolean partial_inplace;
1682
1683        /* The src_mask selects which parts of the read in data
1684           are to be used in the relocation sum.  E.g., if this was an 8 bit
1685           byte of data which we read and relocated, this would be
1686           0x000000ff. When we have relocs which have an addend, such as
1687           sun4 extended relocs, the value in the offset part of a
1688           relocating field is garbage so we never use it. In this case
1689           the mask would be 0x00000000. */
1690   bfd_vma src_mask;
1691
1692        /* The dst_mask selects which parts of the instruction are replaced
1693           into the instruction. In most cases src_mask == dst_mask,
1694           except in the above special case, where dst_mask would be
1695           0x000000ff, and src_mask would be 0x00000000.   */
1696   bfd_vma dst_mask;
1697
1698        /* When some formats create PC relative instructions, they leave
1699           the value of the pc of the place being relocated in the offset
1700           slot of the instruction, so that a PC relative relocation can
1701           be made just by adding in an ordinary offset (e.g., sun3 a.out).
1702           Some formats leave the displacement part of an instruction
1703           empty (e.g., m88k bcs); this flag signals the fact.*/
1704   boolean pcrel_offset;
1705
1706 };
1707 #define HOWTO(C, R,S,B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
1708   {(unsigned)C,R,S,B, P, BI, O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC}
1709 #define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,complain_overflow_dont,FUNCTION, NAME,false,0,0,IN)
1710
1711 #define EMPTY_HOWTO(C) \
1712   HOWTO((C),0,0,0,false,0,complain_overflow_dont,NULL,NULL,false,0,0,false)
1713
1714 #define HOWTO_PREPARE(relocation, symbol)      \
1715   {                                            \
1716   if (symbol != (asymbol *)NULL) {             \
1717     if (bfd_is_com_section (symbol->section)) { \
1718       relocation = 0;                          \
1719     }                                          \
1720     else {                                     \
1721       relocation = symbol->value;              \
1722     }                                          \
1723   }                                            \
1724 }
1725 unsigned int
1726 bfd_get_reloc_size  PARAMS ((reloc_howto_type *));
1727
1728 typedef struct relent_chain {
1729   arelent relent;
1730   struct   relent_chain *next;
1731 } arelent_chain;
1732 bfd_reloc_status_type
1733
1734 bfd_check_overflow
1735  PARAMS ((enum complain_overflow how,
1736     unsigned int bitsize,
1737     unsigned int rightshift,
1738     unsigned int addrsize,
1739     bfd_vma relocation));
1740
1741 bfd_reloc_status_type
1742
1743 bfd_perform_relocation
1744  PARAMS ((bfd *abfd,
1745     arelent *reloc_entry,
1746     PTR data,
1747     asection *input_section,
1748     bfd *output_bfd,
1749     char **error_message));
1750
1751 bfd_reloc_status_type
1752
1753 bfd_install_relocation
1754  PARAMS ((bfd *abfd,
1755     arelent *reloc_entry,
1756     PTR data, bfd_vma data_start,
1757     asection *input_section,
1758     char **error_message));
1759
1760 enum bfd_reloc_code_real {
1761   _dummy_first_bfd_reloc_code_real,
1762
1763
1764 /* Basic absolute relocations of N bits. */
1765   BFD_RELOC_64,
1766   BFD_RELOC_32,
1767   BFD_RELOC_26,
1768   BFD_RELOC_24,
1769   BFD_RELOC_16,
1770   BFD_RELOC_14,
1771   BFD_RELOC_8,
1772
1773 /* PC-relative relocations.  Sometimes these are relative to the address
1774 of the relocation itself; sometimes they are relative to the start of
1775 the section containing the relocation.  It depends on the specific target.
1776
1777 The 24-bit relocation is used in some Intel 960 configurations. */
1778   BFD_RELOC_64_PCREL,
1779   BFD_RELOC_32_PCREL,
1780   BFD_RELOC_24_PCREL,
1781   BFD_RELOC_16_PCREL,
1782   BFD_RELOC_12_PCREL,
1783   BFD_RELOC_8_PCREL,
1784
1785 /* For ELF. */
1786   BFD_RELOC_32_GOT_PCREL,
1787   BFD_RELOC_16_GOT_PCREL,
1788   BFD_RELOC_8_GOT_PCREL,
1789   BFD_RELOC_32_GOTOFF,
1790   BFD_RELOC_16_GOTOFF,
1791   BFD_RELOC_LO16_GOTOFF,
1792   BFD_RELOC_HI16_GOTOFF,
1793   BFD_RELOC_HI16_S_GOTOFF,
1794   BFD_RELOC_8_GOTOFF,
1795   BFD_RELOC_32_PLT_PCREL,
1796   BFD_RELOC_24_PLT_PCREL,
1797   BFD_RELOC_16_PLT_PCREL,
1798   BFD_RELOC_8_PLT_PCREL,
1799   BFD_RELOC_32_PLTOFF,
1800   BFD_RELOC_16_PLTOFF,
1801   BFD_RELOC_LO16_PLTOFF,
1802   BFD_RELOC_HI16_PLTOFF,
1803   BFD_RELOC_HI16_S_PLTOFF,
1804   BFD_RELOC_8_PLTOFF,
1805
1806 /* Relocations used by 68K ELF. */
1807   BFD_RELOC_68K_GLOB_DAT,
1808   BFD_RELOC_68K_JMP_SLOT,
1809   BFD_RELOC_68K_RELATIVE,
1810
1811 /* Linkage-table relative. */
1812   BFD_RELOC_32_BASEREL,
1813   BFD_RELOC_16_BASEREL,
1814   BFD_RELOC_LO16_BASEREL,
1815   BFD_RELOC_HI16_BASEREL,
1816   BFD_RELOC_HI16_S_BASEREL,
1817   BFD_RELOC_8_BASEREL,
1818   BFD_RELOC_RVA,
1819
1820 /* Absolute 8-bit relocation, but used to form an address like 0xFFnn. */
1821   BFD_RELOC_8_FFnn,
1822
1823 /* These PC-relative relocations are stored as word displacements --
1824 i.e., byte displacements shifted right two bits.  The 30-bit word
1825 displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the
1826 SPARC.  (SPARC tools generally refer to this as <<WDISP30>>.)  The
1827 signed 16-bit displacement is used on the MIPS, and the 23-bit
1828 displacement is used on the Alpha. */
1829   BFD_RELOC_32_PCREL_S2,
1830   BFD_RELOC_16_PCREL_S2,
1831   BFD_RELOC_23_PCREL_S2,
1832
1833 /* High 22 bits and low 10 bits of 32-bit value, placed into lower bits of
1834 the target word.  These are used on the SPARC. */
1835   BFD_RELOC_HI22,
1836   BFD_RELOC_LO10,
1837
1838 /* For systems that allocate a Global Pointer register, these are
1839 displacements off that register.  These relocation types are
1840 handled specially, because the value the register will have is
1841 decided relatively late. */
1842   BFD_RELOC_GPREL16,
1843   BFD_RELOC_GPREL32,
1844
1845 /* Reloc types used for i960/b.out. */
1846   BFD_RELOC_I960_CALLJ,
1847
1848 /* SPARC ELF relocations.  There is probably some overlap with other
1849 relocation types already defined. */
1850   BFD_RELOC_NONE,
1851   BFD_RELOC_SPARC_WDISP22,
1852   BFD_RELOC_SPARC22,
1853   BFD_RELOC_SPARC13,
1854   BFD_RELOC_SPARC_GOT10,
1855   BFD_RELOC_SPARC_GOT13,
1856   BFD_RELOC_SPARC_GOT22,
1857   BFD_RELOC_SPARC_PC10,
1858   BFD_RELOC_SPARC_PC22,
1859   BFD_RELOC_SPARC_WPLT30,
1860   BFD_RELOC_SPARC_COPY,
1861   BFD_RELOC_SPARC_GLOB_DAT,
1862   BFD_RELOC_SPARC_JMP_SLOT,
1863   BFD_RELOC_SPARC_RELATIVE,
1864   BFD_RELOC_SPARC_UA32,
1865
1866 /* I think these are specific to SPARC a.out (e.g., Sun 4). */
1867   BFD_RELOC_SPARC_BASE13,
1868   BFD_RELOC_SPARC_BASE22,
1869
1870 /* SPARC64 relocations */
1871 #define BFD_RELOC_SPARC_64 BFD_RELOC_64
1872   BFD_RELOC_SPARC_10,
1873   BFD_RELOC_SPARC_11,
1874   BFD_RELOC_SPARC_OLO10,
1875   BFD_RELOC_SPARC_HH22,
1876   BFD_RELOC_SPARC_HM10,
1877   BFD_RELOC_SPARC_LM22,
1878   BFD_RELOC_SPARC_PC_HH22,
1879   BFD_RELOC_SPARC_PC_HM10,
1880   BFD_RELOC_SPARC_PC_LM22,
1881   BFD_RELOC_SPARC_WDISP16,
1882   BFD_RELOC_SPARC_WDISP19,
1883   BFD_RELOC_SPARC_7,
1884   BFD_RELOC_SPARC_6,
1885   BFD_RELOC_SPARC_5,
1886 #define BFD_RELOC_SPARC_DISP64 BFD_RELOC_64_PCREL
1887   BFD_RELOC_SPARC_PLT64,
1888   BFD_RELOC_SPARC_HIX22,
1889   BFD_RELOC_SPARC_LOX10,
1890   BFD_RELOC_SPARC_H44,
1891   BFD_RELOC_SPARC_M44,
1892   BFD_RELOC_SPARC_L44,
1893   BFD_RELOC_SPARC_REGISTER,
1894
1895 /* SPARC little endian relocation */
1896   BFD_RELOC_SPARC_REV32,
1897
1898 /* Alpha ECOFF and ELF relocations.  Some of these treat the symbol or
1899 "addend" in some special way.
1900 For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1901 writing; when reading, it will be the absolute section symbol.  The
1902 addend is the displacement in bytes of the "lda" instruction from
1903 the "ldah" instruction (which is at the address of this reloc). */
1904   BFD_RELOC_ALPHA_GPDISP_HI16,
1905
1906 /* For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1907 with GPDISP_HI16 relocs.  The addend is ignored when writing the
1908 relocations out, and is filled in with the file's GP value on
1909 reading, for convenience. */
1910   BFD_RELOC_ALPHA_GPDISP_LO16,
1911
1912 /* The ELF GPDISP relocation is exactly the same as the GPDISP_HI16
1913 relocation except that there is no accompanying GPDISP_LO16
1914 relocation. */
1915   BFD_RELOC_ALPHA_GPDISP,
1916
1917 /* The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1918 the assembler turns it into a LDQ instruction to load the address of
1919 the symbol, and then fills in a register in the real instruction.
1920
1921 The LITERAL reloc, at the LDQ instruction, refers to the .lita
1922 section symbol.  The addend is ignored when writing, but is filled
1923 in with the file's GP value on reading, for convenience, as with the
1924 GPDISP_LO16 reloc.
1925
1926 The ELF_LITERAL reloc is somewhere between 16_GOTOFF and GPDISP_LO16.
1927 It should refer to the symbol to be referenced, as with 16_GOTOFF,
1928 but it generates output not based on the position within the .got
1929 section, but relative to the GP value chosen for the file during the
1930 final link stage.
1931
1932 The LITUSE reloc, on the instruction using the loaded address, gives
1933 information to the linker that it might be able to use to optimize
1934 away some literal section references.  The symbol is ignored (read
1935 as the absolute section symbol), and the "addend" indicates the type
1936 of instruction using the register:
1937 1 - "memory" fmt insn
1938 2 - byte-manipulation (byte offset reg)
1939 3 - jsr (target of branch)
1940
1941 The GNU linker currently doesn't do any of this optimizing. */
1942   BFD_RELOC_ALPHA_LITERAL,
1943   BFD_RELOC_ALPHA_ELF_LITERAL,
1944   BFD_RELOC_ALPHA_LITUSE,
1945
1946 /* The BFD_RELOC_ALPHA_USER_* relocations are used by the assembler to
1947 process the explicit !<reloc>!sequence relocations, and are mapped
1948 into the normal relocations at the end of processing. */
1949   BFD_RELOC_ALPHA_USER_LITERAL,
1950   BFD_RELOC_ALPHA_USER_LITUSE_BASE,
1951   BFD_RELOC_ALPHA_USER_LITUSE_BYTOFF,
1952   BFD_RELOC_ALPHA_USER_LITUSE_JSR,
1953   BFD_RELOC_ALPHA_USER_GPDISP,
1954   BFD_RELOC_ALPHA_USER_GPRELHIGH,
1955   BFD_RELOC_ALPHA_USER_GPRELLOW,
1956
1957 /* The HINT relocation indicates a value that should be filled into the
1958 "hint" field of a jmp/jsr/ret instruction, for possible branch-
1959 prediction logic which may be provided on some processors. */
1960   BFD_RELOC_ALPHA_HINT,
1961
1962 /* The LINKAGE relocation outputs a linkage pair in the object file,
1963 which is filled by the linker. */
1964   BFD_RELOC_ALPHA_LINKAGE,
1965
1966 /* The CODEADDR relocation outputs a STO_CA in the object file,
1967 which is filled by the linker. */
1968   BFD_RELOC_ALPHA_CODEADDR,
1969
1970 /* Bits 27..2 of the relocation address shifted right 2 bits;
1971 simple reloc otherwise. */
1972   BFD_RELOC_MIPS_JMP,
1973
1974 /* The MIPS16 jump instruction. */
1975   BFD_RELOC_MIPS16_JMP,
1976
1977 /* MIPS16 GP relative reloc. */
1978   BFD_RELOC_MIPS16_GPREL,
1979
1980 /* High 16 bits of 32-bit value; simple reloc. */
1981   BFD_RELOC_HI16,
1982
1983 /* High 16 bits of 32-bit value but the low 16 bits will be sign
1984 extended and added to form the final result.  If the low 16
1985 bits form a negative number, we need to add one to the high value
1986 to compensate for the borrow when the low bits are added. */
1987   BFD_RELOC_HI16_S,
1988
1989 /* Low 16 bits. */
1990   BFD_RELOC_LO16,
1991
1992 /* Like BFD_RELOC_HI16_S, but PC relative. */
1993   BFD_RELOC_PCREL_HI16_S,
1994
1995 /* Like BFD_RELOC_LO16, but PC relative. */
1996   BFD_RELOC_PCREL_LO16,
1997
1998 /* Relocation relative to the global pointer. */
1999 #define BFD_RELOC_MIPS_GPREL BFD_RELOC_GPREL16
2000
2001 /* Relocation against a MIPS literal section. */
2002   BFD_RELOC_MIPS_LITERAL,
2003
2004 /* MIPS ELF relocations. */
2005   BFD_RELOC_MIPS_GOT16,
2006   BFD_RELOC_MIPS_CALL16,
2007 #define BFD_RELOC_MIPS_GPREL32 BFD_RELOC_GPREL32
2008   BFD_RELOC_MIPS_GOT_HI16,
2009   BFD_RELOC_MIPS_GOT_LO16,
2010   BFD_RELOC_MIPS_CALL_HI16,
2011   BFD_RELOC_MIPS_CALL_LO16,
2012   BFD_RELOC_MIPS_SUB,
2013   BFD_RELOC_MIPS_GOT_PAGE,
2014   BFD_RELOC_MIPS_GOT_OFST,
2015   BFD_RELOC_MIPS_GOT_DISP,
2016
2017
2018 /* i386/elf relocations */
2019   BFD_RELOC_386_GOT32,
2020   BFD_RELOC_386_PLT32,
2021   BFD_RELOC_386_COPY,
2022   BFD_RELOC_386_GLOB_DAT,
2023   BFD_RELOC_386_JUMP_SLOT,
2024   BFD_RELOC_386_RELATIVE,
2025   BFD_RELOC_386_GOTOFF,
2026   BFD_RELOC_386_GOTPC,
2027
2028 /* ns32k relocations */
2029   BFD_RELOC_NS32K_IMM_8,
2030   BFD_RELOC_NS32K_IMM_16,
2031   BFD_RELOC_NS32K_IMM_32,
2032   BFD_RELOC_NS32K_IMM_8_PCREL,
2033   BFD_RELOC_NS32K_IMM_16_PCREL,
2034   BFD_RELOC_NS32K_IMM_32_PCREL,
2035   BFD_RELOC_NS32K_DISP_8,
2036   BFD_RELOC_NS32K_DISP_16,
2037   BFD_RELOC_NS32K_DISP_32,
2038   BFD_RELOC_NS32K_DISP_8_PCREL,
2039   BFD_RELOC_NS32K_DISP_16_PCREL,
2040   BFD_RELOC_NS32K_DISP_32_PCREL,
2041
2042 /* Picojava relocs.  Not all of these appear in object files. */
2043   BFD_RELOC_PJ_CODE_HI16,
2044   BFD_RELOC_PJ_CODE_LO16,
2045   BFD_RELOC_PJ_CODE_DIR16,
2046   BFD_RELOC_PJ_CODE_DIR32,
2047   BFD_RELOC_PJ_CODE_REL16,
2048   BFD_RELOC_PJ_CODE_REL32,
2049
2050 /* Power(rs6000) and PowerPC relocations. */
2051   BFD_RELOC_PPC_B26,
2052   BFD_RELOC_PPC_BA26,
2053   BFD_RELOC_PPC_TOC16,
2054   BFD_RELOC_PPC_B16,
2055   BFD_RELOC_PPC_B16_BRTAKEN,
2056   BFD_RELOC_PPC_B16_BRNTAKEN,
2057   BFD_RELOC_PPC_BA16,
2058   BFD_RELOC_PPC_BA16_BRTAKEN,
2059   BFD_RELOC_PPC_BA16_BRNTAKEN,
2060   BFD_RELOC_PPC_COPY,
2061   BFD_RELOC_PPC_GLOB_DAT,
2062   BFD_RELOC_PPC_JMP_SLOT,
2063   BFD_RELOC_PPC_RELATIVE,
2064   BFD_RELOC_PPC_LOCAL24PC,
2065   BFD_RELOC_PPC_EMB_NADDR32,
2066   BFD_RELOC_PPC_EMB_NADDR16,
2067   BFD_RELOC_PPC_EMB_NADDR16_LO,
2068   BFD_RELOC_PPC_EMB_NADDR16_HI,
2069   BFD_RELOC_PPC_EMB_NADDR16_HA,
2070   BFD_RELOC_PPC_EMB_SDAI16,
2071   BFD_RELOC_PPC_EMB_SDA2I16,
2072   BFD_RELOC_PPC_EMB_SDA2REL,
2073   BFD_RELOC_PPC_EMB_SDA21,
2074   BFD_RELOC_PPC_EMB_MRKREF,
2075   BFD_RELOC_PPC_EMB_RELSEC16,
2076   BFD_RELOC_PPC_EMB_RELST_LO,
2077   BFD_RELOC_PPC_EMB_RELST_HI,
2078   BFD_RELOC_PPC_EMB_RELST_HA,
2079   BFD_RELOC_PPC_EMB_BIT_FLD,
2080   BFD_RELOC_PPC_EMB_RELSDA,
2081
2082 /* IBM 370/390 relocations */
2083   BFD_RELOC_I370_D12,
2084
2085 /* The type of reloc used to build a contructor table - at the moment
2086 probably a 32 bit wide absolute relocation, but the target can choose.
2087 It generally does map to one of the other relocation types. */
2088   BFD_RELOC_CTOR,
2089
2090 /* ARM 26 bit pc-relative branch.  The lowest two bits must be zero and are
2091 not stored in the instruction. */
2092   BFD_RELOC_ARM_PCREL_BRANCH,
2093
2094 /* ARM 26 bit pc-relative branch.  The lowest bit must be zero and is
2095 not stored in the instruction.  The 2nd lowest bit comes from a 1 bit
2096 field in the instruction. */
2097   BFD_RELOC_ARM_PCREL_BLX,
2098
2099 /* Thumb 22 bit pc-relative branch.  The lowest bit must be zero and is
2100 not stored in the instruction.  The 2nd lowest bit comes from a 1 bit
2101 field in the instruction. */
2102   BFD_RELOC_THUMB_PCREL_BLX,
2103
2104 /* These relocs are only used within the ARM assembler.  They are not
2105 (at present) written to any object files. */
2106   BFD_RELOC_ARM_IMMEDIATE,
2107   BFD_RELOC_ARM_ADRL_IMMEDIATE,
2108   BFD_RELOC_ARM_OFFSET_IMM,
2109   BFD_RELOC_ARM_SHIFT_IMM,
2110   BFD_RELOC_ARM_SWI,
2111   BFD_RELOC_ARM_MULTI,
2112   BFD_RELOC_ARM_CP_OFF_IMM,
2113   BFD_RELOC_ARM_ADR_IMM,
2114   BFD_RELOC_ARM_LDR_IMM,
2115   BFD_RELOC_ARM_LITERAL,
2116   BFD_RELOC_ARM_IN_POOL,
2117   BFD_RELOC_ARM_OFFSET_IMM8,
2118   BFD_RELOC_ARM_HWLITERAL,
2119   BFD_RELOC_ARM_THUMB_ADD,
2120   BFD_RELOC_ARM_THUMB_IMM,
2121   BFD_RELOC_ARM_THUMB_SHIFT,
2122   BFD_RELOC_ARM_THUMB_OFFSET,
2123   BFD_RELOC_ARM_GOT12,
2124   BFD_RELOC_ARM_GOT32,
2125   BFD_RELOC_ARM_JUMP_SLOT,
2126   BFD_RELOC_ARM_COPY,
2127   BFD_RELOC_ARM_GLOB_DAT,
2128   BFD_RELOC_ARM_PLT32,
2129   BFD_RELOC_ARM_RELATIVE,
2130   BFD_RELOC_ARM_GOTOFF,
2131   BFD_RELOC_ARM_GOTPC,
2132
2133 /* Hitachi SH relocs.  Not all of these appear in object files. */
2134   BFD_RELOC_SH_PCDISP8BY2,
2135   BFD_RELOC_SH_PCDISP12BY2,
2136   BFD_RELOC_SH_IMM4,
2137   BFD_RELOC_SH_IMM4BY2,
2138   BFD_RELOC_SH_IMM4BY4,
2139   BFD_RELOC_SH_IMM8,
2140   BFD_RELOC_SH_IMM8BY2,
2141   BFD_RELOC_SH_IMM8BY4,
2142   BFD_RELOC_SH_PCRELIMM8BY2,
2143   BFD_RELOC_SH_PCRELIMM8BY4,
2144   BFD_RELOC_SH_SWITCH16,
2145   BFD_RELOC_SH_SWITCH32,
2146   BFD_RELOC_SH_USES,
2147   BFD_RELOC_SH_COUNT,
2148   BFD_RELOC_SH_ALIGN,
2149   BFD_RELOC_SH_CODE,
2150   BFD_RELOC_SH_DATA,
2151   BFD_RELOC_SH_LABEL,
2152   BFD_RELOC_SH_LOOP_START,
2153   BFD_RELOC_SH_LOOP_END,
2154
2155 /* Thumb 23-, 12- and 9-bit pc-relative branches.  The lowest bit must
2156 be zero and is not stored in the instruction. */
2157   BFD_RELOC_THUMB_PCREL_BRANCH9,
2158   BFD_RELOC_THUMB_PCREL_BRANCH12,
2159   BFD_RELOC_THUMB_PCREL_BRANCH23,
2160
2161 /* Argonaut RISC Core (ARC) relocs.
2162 ARC 22 bit pc-relative branch.  The lowest two bits must be zero and are
2163 not stored in the instruction.  The high 20 bits are installed in bits 26
2164 through 7 of the instruction. */
2165   BFD_RELOC_ARC_B22_PCREL,
2166
2167 /* ARC 26 bit absolute branch.  The lowest two bits must be zero and are not
2168 stored in the instruction.  The high 24 bits are installed in bits 23
2169 through 0. */
2170   BFD_RELOC_ARC_B26,
2171
2172 /* Mitsubishi D10V relocs.
2173 This is a 10-bit reloc with the right 2 bits
2174 assumed to be 0. */
2175   BFD_RELOC_D10V_10_PCREL_R,
2176
2177 /* Mitsubishi D10V relocs.
2178 This is a 10-bit reloc with the right 2 bits
2179 assumed to be 0.  This is the same as the previous reloc
2180 except it is in the left container, i.e.,
2181 shifted left 15 bits. */
2182   BFD_RELOC_D10V_10_PCREL_L,
2183
2184 /* This is an 18-bit reloc with the right 2 bits
2185 assumed to be 0. */
2186   BFD_RELOC_D10V_18,
2187
2188 /* This is an 18-bit reloc with the right 2 bits
2189 assumed to be 0. */
2190   BFD_RELOC_D10V_18_PCREL,
2191
2192 /* Mitsubishi D30V relocs.
2193 This is a 6-bit absolute reloc. */
2194   BFD_RELOC_D30V_6,
2195
2196 /* This is a 6-bit pc-relative reloc with
2197 the right 3 bits assumed to be 0. */
2198   BFD_RELOC_D30V_9_PCREL,
2199
2200 /* This is a 6-bit pc-relative reloc with
2201 the right 3 bits assumed to be 0. Same
2202 as the previous reloc but on the right side
2203 of the container. */
2204   BFD_RELOC_D30V_9_PCREL_R,
2205
2206 /* This is a 12-bit absolute reloc with the
2207 right 3 bitsassumed to be 0. */
2208   BFD_RELOC_D30V_15,
2209
2210 /* This is a 12-bit pc-relative reloc with
2211 the right 3 bits assumed to be 0. */
2212   BFD_RELOC_D30V_15_PCREL,
2213
2214 /* This is a 12-bit pc-relative reloc with
2215 the right 3 bits assumed to be 0. Same
2216 as the previous reloc but on the right side
2217 of the container. */
2218   BFD_RELOC_D30V_15_PCREL_R,
2219
2220 /* This is an 18-bit absolute reloc with
2221 the right 3 bits assumed to be 0. */
2222   BFD_RELOC_D30V_21,
2223
2224 /* This is an 18-bit pc-relative reloc with
2225 the right 3 bits assumed to be 0. */
2226   BFD_RELOC_D30V_21_PCREL,
2227
2228 /* This is an 18-bit pc-relative reloc with
2229 the right 3 bits assumed to be 0. Same
2230 as the previous reloc but on the right side
2231 of the container. */
2232   BFD_RELOC_D30V_21_PCREL_R,
2233
2234 /* This is a 32-bit absolute reloc. */
2235   BFD_RELOC_D30V_32,
2236
2237 /* This is a 32-bit pc-relative reloc. */
2238   BFD_RELOC_D30V_32_PCREL,
2239
2240 /* Mitsubishi M32R relocs.
2241 This is a 24 bit absolute address. */
2242   BFD_RELOC_M32R_24,
2243
2244 /* This is a 10-bit pc-relative reloc with the right 2 bits assumed to be 0. */
2245   BFD_RELOC_M32R_10_PCREL,
2246
2247 /* This is an 18-bit reloc with the right 2 bits assumed to be 0. */
2248   BFD_RELOC_M32R_18_PCREL,
2249
2250 /* This is a 26-bit reloc with the right 2 bits assumed to be 0. */
2251   BFD_RELOC_M32R_26_PCREL,
2252
2253 /* This is a 16-bit reloc containing the high 16 bits of an address
2254 used when the lower 16 bits are treated as unsigned. */
2255   BFD_RELOC_M32R_HI16_ULO,
2256
2257 /* This is a 16-bit reloc containing the high 16 bits of an address
2258 used when the lower 16 bits are treated as signed. */
2259   BFD_RELOC_M32R_HI16_SLO,
2260
2261 /* This is a 16-bit reloc containing the lower 16 bits of an address. */
2262   BFD_RELOC_M32R_LO16,
2263
2264 /* This is a 16-bit reloc containing the small data area offset for use in
2265 add3, load, and store instructions. */
2266   BFD_RELOC_M32R_SDA16,
2267
2268 /* This is a 9-bit reloc */
2269   BFD_RELOC_V850_9_PCREL,
2270
2271 /* This is a 22-bit reloc */
2272   BFD_RELOC_V850_22_PCREL,
2273
2274 /* This is a 16 bit offset from the short data area pointer. */
2275   BFD_RELOC_V850_SDA_16_16_OFFSET,
2276
2277 /* This is a 16 bit offset (of which only 15 bits are used) from the
2278 short data area pointer. */
2279   BFD_RELOC_V850_SDA_15_16_OFFSET,
2280
2281 /* This is a 16 bit offset from the zero data area pointer. */
2282   BFD_RELOC_V850_ZDA_16_16_OFFSET,
2283
2284 /* This is a 16 bit offset (of which only 15 bits are used) from the
2285 zero data area pointer. */
2286   BFD_RELOC_V850_ZDA_15_16_OFFSET,
2287
2288 /* This is an 8 bit offset (of which only 6 bits are used) from the
2289 tiny data area pointer. */
2290   BFD_RELOC_V850_TDA_6_8_OFFSET,
2291
2292 /* This is an 8bit offset (of which only 7 bits are used) from the tiny
2293 data area pointer. */
2294   BFD_RELOC_V850_TDA_7_8_OFFSET,
2295
2296 /* This is a 7 bit offset from the tiny data area pointer. */
2297   BFD_RELOC_V850_TDA_7_7_OFFSET,
2298
2299 /* This is a 16 bit offset from the tiny data area pointer. */
2300   BFD_RELOC_V850_TDA_16_16_OFFSET,
2301
2302 /* This is a 5 bit offset (of which only 4 bits are used) from the tiny
2303 data area pointer. */
2304   BFD_RELOC_V850_TDA_4_5_OFFSET,
2305
2306 /* This is a 4 bit offset from the tiny data area pointer. */
2307   BFD_RELOC_V850_TDA_4_4_OFFSET,
2308
2309 /* This is a 16 bit offset from the short data area pointer, with the
2310 bits placed non-contigously in the instruction. */
2311   BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET,
2312
2313 /* This is a 16 bit offset from the zero data area pointer, with the
2314 bits placed non-contigously in the instruction. */
2315   BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET,
2316
2317 /* This is a 6 bit offset from the call table base pointer. */
2318   BFD_RELOC_V850_CALLT_6_7_OFFSET,
2319
2320 /* This is a 16 bit offset from the call table base pointer. */
2321   BFD_RELOC_V850_CALLT_16_16_OFFSET,
2322
2323
2324 /* This is a 32bit pcrel reloc for the mn10300, offset by two bytes in the
2325 instruction. */
2326   BFD_RELOC_MN10300_32_PCREL,
2327
2328 /* This is a 16bit pcrel reloc for the mn10300, offset by two bytes in the
2329 instruction. */
2330   BFD_RELOC_MN10300_16_PCREL,
2331
2332 /* This is a 8bit DP reloc for the tms320c30, where the most
2333 significant 8 bits of a 24 bit word are placed into the least
2334 significant 8 bits of the opcode. */
2335   BFD_RELOC_TIC30_LDP,
2336
2337 /* This is a 7bit reloc for the tms320c54x, where the least
2338 significant 7 bits of a 16 bit word are placed into the least
2339 significant 7 bits of the opcode. */
2340   BFD_RELOC_TIC54X_PARTLS7,
2341
2342 /* This is a 9bit DP reloc for the tms320c54x, where the most
2343 significant 9 bits of a 16 bit word are placed into the least
2344 significant 9 bits of the opcode. */
2345   BFD_RELOC_TIC54X_PARTMS9,
2346
2347 /* This is an extended address 23-bit reloc for the tms320c54x. */
2348   BFD_RELOC_TIC54X_23,
2349
2350 /* This is a 16-bit reloc for the tms320c54x, where the least
2351 significant 16 bits of a 23-bit extended address are placed into
2352 the opcode. */
2353   BFD_RELOC_TIC54X_16_OF_23,
2354
2355 /* This is a reloc for the tms320c54x, where the most
2356 significant 7 bits of a 23-bit extended address are placed into
2357 the opcode. */
2358   BFD_RELOC_TIC54X_MS7_OF_23,
2359
2360 /* This is a 48 bit reloc for the FR30 that stores 32 bits. */
2361   BFD_RELOC_FR30_48,
2362
2363 /* This is a 32 bit reloc for the FR30 that stores 20 bits split up into
2364 two sections. */
2365   BFD_RELOC_FR30_20,
2366
2367 /* This is a 16 bit reloc for the FR30 that stores a 6 bit word offset in
2368 4 bits. */
2369   BFD_RELOC_FR30_6_IN_4,
2370
2371 /* This is a 16 bit reloc for the FR30 that stores an 8 bit byte offset
2372 into 8 bits. */
2373   BFD_RELOC_FR30_8_IN_8,
2374
2375 /* This is a 16 bit reloc for the FR30 that stores a 9 bit short offset
2376 into 8 bits. */
2377   BFD_RELOC_FR30_9_IN_8,
2378
2379 /* This is a 16 bit reloc for the FR30 that stores a 10 bit word offset
2380 into 8 bits. */
2381   BFD_RELOC_FR30_10_IN_8,
2382
2383 /* This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative
2384 short offset into 8 bits. */
2385   BFD_RELOC_FR30_9_PCREL,
2386
2387 /* This is a 16 bit reloc for the FR30 that stores a 12 bit pc relative
2388 short offset into 11 bits. */
2389   BFD_RELOC_FR30_12_PCREL,
2390
2391 /* Motorola Mcore relocations. */
2392   BFD_RELOC_MCORE_PCREL_IMM8BY4,
2393   BFD_RELOC_MCORE_PCREL_IMM11BY2,
2394   BFD_RELOC_MCORE_PCREL_IMM4BY2,
2395   BFD_RELOC_MCORE_PCREL_32,
2396   BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2,
2397   BFD_RELOC_MCORE_RVA,
2398
2399 /* This is a 16 bit reloc for the AVR that stores 8 bit pc relative
2400 short offset into 7 bits. */
2401   BFD_RELOC_AVR_7_PCREL,
2402
2403 /* This is a 16 bit reloc for the AVR that stores 13 bit pc relative
2404 short offset into 12 bits. */
2405   BFD_RELOC_AVR_13_PCREL,
2406
2407 /* This is a 16 bit reloc for the AVR that stores 17 bit value (usually
2408 program memory address) into 16 bits. */
2409   BFD_RELOC_AVR_16_PM,
2410
2411 /* This is a 16 bit reloc for the AVR that stores 8 bit value (usually
2412 data memory address) into 8 bit immediate value of LDI insn. */
2413   BFD_RELOC_AVR_LO8_LDI,
2414
2415 /* This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
2416 of data memory address) into 8 bit immediate value of LDI insn. */
2417   BFD_RELOC_AVR_HI8_LDI,
2418
2419 /* This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
2420 of program memory address) into 8 bit immediate value of LDI insn. */
2421   BFD_RELOC_AVR_HH8_LDI,
2422
2423 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2424 (usually data memory address) into 8 bit immediate value of SUBI insn. */
2425   BFD_RELOC_AVR_LO8_LDI_NEG,
2426
2427 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2428 (high 8 bit of data memory address) into 8 bit immediate value of
2429 SUBI insn. */
2430   BFD_RELOC_AVR_HI8_LDI_NEG,
2431
2432 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2433 (most high 8 bit of program memory address) into 8 bit immediate value
2434 of LDI or SUBI insn. */
2435   BFD_RELOC_AVR_HH8_LDI_NEG,
2436
2437 /* This is a 16 bit reloc for the AVR that stores 8 bit value (usually
2438 command address) into 8 bit immediate value of LDI insn. */
2439   BFD_RELOC_AVR_LO8_LDI_PM,
2440
2441 /* This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
2442 of command address) into 8 bit immediate value of LDI insn. */
2443   BFD_RELOC_AVR_HI8_LDI_PM,
2444
2445 /* This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
2446 of command address) into 8 bit immediate value of LDI insn. */
2447   BFD_RELOC_AVR_HH8_LDI_PM,
2448
2449 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2450 (usually command address) into 8 bit immediate value of SUBI insn. */
2451   BFD_RELOC_AVR_LO8_LDI_PM_NEG,
2452
2453 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2454 (high 8 bit of 16 bit command address) into 8 bit immediate value
2455 of SUBI insn. */
2456   BFD_RELOC_AVR_HI8_LDI_PM_NEG,
2457
2458 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2459 (high 6 bit of 22 bit command address) into 8 bit immediate
2460 value of SUBI insn. */
2461   BFD_RELOC_AVR_HH8_LDI_PM_NEG,
2462
2463 /* This is a 32 bit reloc for the AVR that stores 23 bit value
2464 into 22 bits. */
2465   BFD_RELOC_AVR_CALL,
2466
2467 /* These two relocations are used by the linker to determine which of
2468 the entries in a C++ virtual function table are actually used.  When
2469 the --gc-sections option is given, the linker will zero out the entries
2470 that are not used, so that the code for those functions need not be
2471 included in the output.
2472
2473 VTABLE_INHERIT is a zero-space relocation used to describe to the
2474 linker the inheritence tree of a C++ virtual function table.  The
2475 relocation's symbol should be the parent class' vtable, and the
2476 relocation should be located at the child vtable.
2477
2478 VTABLE_ENTRY is a zero-space relocation that describes the use of a
2479 virtual function table entry.  The reloc's symbol should refer to the
2480 table of the class mentioned in the code.  Off of that base, an offset
2481 describes the entry that is being used.  For Rela hosts, this offset
2482 is stored in the reloc's addend.  For Rel hosts, we are forced to put
2483 this offset in the reloc's section offset. */
2484   BFD_RELOC_VTABLE_INHERIT,
2485   BFD_RELOC_VTABLE_ENTRY,
2486
2487 /* Intel IA64 Relocations. */
2488   BFD_RELOC_IA64_IMM14,
2489   BFD_RELOC_IA64_IMM22,
2490   BFD_RELOC_IA64_IMM64,
2491   BFD_RELOC_IA64_DIR32MSB,
2492   BFD_RELOC_IA64_DIR32LSB,
2493   BFD_RELOC_IA64_DIR64MSB,
2494   BFD_RELOC_IA64_DIR64LSB,
2495   BFD_RELOC_IA64_GPREL22,
2496   BFD_RELOC_IA64_GPREL64I,
2497   BFD_RELOC_IA64_GPREL32MSB,
2498   BFD_RELOC_IA64_GPREL32LSB,
2499   BFD_RELOC_IA64_GPREL64MSB,
2500   BFD_RELOC_IA64_GPREL64LSB,
2501   BFD_RELOC_IA64_LTOFF22,
2502   BFD_RELOC_IA64_LTOFF64I,
2503   BFD_RELOC_IA64_PLTOFF22,
2504   BFD_RELOC_IA64_PLTOFF64I,
2505   BFD_RELOC_IA64_PLTOFF64MSB,
2506   BFD_RELOC_IA64_PLTOFF64LSB,
2507   BFD_RELOC_IA64_FPTR64I,
2508   BFD_RELOC_IA64_FPTR32MSB,
2509   BFD_RELOC_IA64_FPTR32LSB,
2510   BFD_RELOC_IA64_FPTR64MSB,
2511   BFD_RELOC_IA64_FPTR64LSB,
2512   BFD_RELOC_IA64_PCREL21B,
2513   BFD_RELOC_IA64_PCREL21BI,
2514   BFD_RELOC_IA64_PCREL21M,
2515   BFD_RELOC_IA64_PCREL21F,
2516   BFD_RELOC_IA64_PCREL22,
2517   BFD_RELOC_IA64_PCREL60B,
2518   BFD_RELOC_IA64_PCREL64I,
2519   BFD_RELOC_IA64_PCREL32MSB,
2520   BFD_RELOC_IA64_PCREL32LSB,
2521   BFD_RELOC_IA64_PCREL64MSB,
2522   BFD_RELOC_IA64_PCREL64LSB,
2523   BFD_RELOC_IA64_LTOFF_FPTR22,
2524   BFD_RELOC_IA64_LTOFF_FPTR64I,
2525   BFD_RELOC_IA64_LTOFF_FPTR64MSB,
2526   BFD_RELOC_IA64_LTOFF_FPTR64LSB,
2527   BFD_RELOC_IA64_SEGBASE,
2528   BFD_RELOC_IA64_SEGREL32MSB,
2529   BFD_RELOC_IA64_SEGREL32LSB,
2530   BFD_RELOC_IA64_SEGREL64MSB,
2531   BFD_RELOC_IA64_SEGREL64LSB,
2532   BFD_RELOC_IA64_SECREL32MSB,
2533   BFD_RELOC_IA64_SECREL32LSB,
2534   BFD_RELOC_IA64_SECREL64MSB,
2535   BFD_RELOC_IA64_SECREL64LSB,
2536   BFD_RELOC_IA64_REL32MSB,
2537   BFD_RELOC_IA64_REL32LSB,
2538   BFD_RELOC_IA64_REL64MSB,
2539   BFD_RELOC_IA64_REL64LSB,
2540   BFD_RELOC_IA64_LTV32MSB,
2541   BFD_RELOC_IA64_LTV32LSB,
2542   BFD_RELOC_IA64_LTV64MSB,
2543   BFD_RELOC_IA64_LTV64LSB,
2544   BFD_RELOC_IA64_IPLTMSB,
2545   BFD_RELOC_IA64_IPLTLSB,
2546   BFD_RELOC_IA64_EPLTMSB,
2547   BFD_RELOC_IA64_EPLTLSB,
2548   BFD_RELOC_IA64_COPY,
2549   BFD_RELOC_IA64_TPREL22,
2550   BFD_RELOC_IA64_TPREL64MSB,
2551   BFD_RELOC_IA64_TPREL64LSB,
2552   BFD_RELOC_IA64_LTOFF_TP22,
2553   BFD_RELOC_IA64_LTOFF22X,
2554   BFD_RELOC_IA64_LDXMOV,
2555
2556 /* Motorola 68HC11 reloc.
2557 This is the 8 bits high part of an absolute address. */
2558   BFD_RELOC_M68HC11_HI8,
2559
2560 /* Motorola 68HC11 reloc.
2561 This is the 8 bits low part of an absolute address. */
2562   BFD_RELOC_M68HC11_LO8,
2563
2564 /* Motorola 68HC11 reloc.
2565 This is the 3 bits of a value. */
2566   BFD_RELOC_M68HC11_3B,
2567   BFD_RELOC_UNUSED };
2568 typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
2569 reloc_howto_type *
2570
2571 bfd_reloc_type_lookup  PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
2572
2573 const char *
2574 bfd_get_reloc_code_name  PARAMS ((bfd_reloc_code_real_type code));
2575
2576
2577 typedef struct symbol_cache_entry
2578 {
2579        /* A pointer to the BFD which owns the symbol. This information
2580           is necessary so that a back end can work out what additional
2581           information (invisible to the application writer) is carried
2582           with the symbol.
2583
2584           This field is *almost* redundant, since you can use section->owner
2585           instead, except that some symbols point to the global sections
2586           bfd_{abs,com,und}_section.  This could be fixed by making
2587           these globals be per-bfd (or per-target-flavor).  FIXME. */
2588
2589   struct _bfd *the_bfd; /* Use bfd_asymbol_bfd(sym) to access this field. */
2590
2591        /* The text of the symbol. The name is left alone, and not copied; the
2592           application may not alter it. */
2593   CONST char *name;
2594
2595        /* The value of the symbol.  This really should be a union of a
2596           numeric value with a pointer, since some flags indicate that
2597           a pointer to another symbol is stored here.  */
2598   symvalue value;
2599
2600        /* Attributes of a symbol: */
2601
2602 #define BSF_NO_FLAGS    0x00
2603
2604        /* The symbol has local scope; <<static>> in <<C>>. The value
2605           is the offset into the section of the data. */
2606 #define BSF_LOCAL      0x01
2607
2608        /* The symbol has global scope; initialized data in <<C>>. The
2609           value is the offset into the section of the data. */
2610 #define BSF_GLOBAL     0x02
2611
2612        /* The symbol has global scope and is exported. The value is
2613           the offset into the section of the data. */
2614 #define BSF_EXPORT     BSF_GLOBAL /* no real difference */
2615
2616        /* A normal C symbol would be one of:
2617           <<BSF_LOCAL>>, <<BSF_FORT_COMM>>,  <<BSF_UNDEFINED>> or
2618           <<BSF_GLOBAL>> */
2619
2620        /* The symbol is a debugging record. The value has an arbitary
2621           meaning, unless BSF_DEBUGGING_RELOC is also set.  */
2622 #define BSF_DEBUGGING  0x08
2623
2624        /* The symbol denotes a function entry point.  Used in ELF,
2625           perhaps others someday.  */
2626 #define BSF_FUNCTION    0x10
2627
2628        /* Used by the linker. */
2629 #define BSF_KEEP        0x20
2630 #define BSF_KEEP_G      0x40
2631
2632        /* A weak global symbol, overridable without warnings by
2633           a regular global symbol of the same name.  */
2634 #define BSF_WEAK        0x80
2635
2636        /* This symbol was created to point to a section, e.g. ELF's
2637           STT_SECTION symbols.  */
2638 #define BSF_SECTION_SYM 0x100
2639
2640        /* The symbol used to be a common symbol, but now it is
2641           allocated. */
2642 #define BSF_OLD_COMMON  0x200
2643
2644        /* The default value for common data. */
2645 #define BFD_FORT_COMM_DEFAULT_VALUE 0
2646
2647        /* In some files the type of a symbol sometimes alters its
2648           location in an output file - ie in coff a <<ISFCN>> symbol
2649           which is also <<C_EXT>> symbol appears where it was
2650           declared and not at the end of a section.  This bit is set
2651           by the target BFD part to convey this information. */
2652
2653 #define BSF_NOT_AT_END    0x400
2654
2655        /* Signal that the symbol is the label of constructor section. */
2656 #define BSF_CONSTRUCTOR   0x800
2657
2658        /* Signal that the symbol is a warning symbol.  The name is a
2659           warning.  The name of the next symbol is the one to warn about;
2660           if a reference is made to a symbol with the same name as the next
2661           symbol, a warning is issued by the linker. */
2662 #define BSF_WARNING       0x1000
2663
2664        /* Signal that the symbol is indirect.  This symbol is an indirect
2665           pointer to the symbol with the same name as the next symbol. */
2666 #define BSF_INDIRECT      0x2000
2667
2668        /* BSF_FILE marks symbols that contain a file name.  This is used
2669           for ELF STT_FILE symbols.  */
2670 #define BSF_FILE          0x4000
2671
2672        /* Symbol is from dynamic linking information.  */
2673 #define BSF_DYNAMIC       0x8000
2674
2675        /* The symbol denotes a data object.  Used in ELF, and perhaps
2676           others someday.  */
2677 #define BSF_OBJECT        0x10000
2678
2679        /* This symbol is a debugging symbol.  The value is the offset
2680           into the section of the data.  BSF_DEBUGGING should be set
2681           as well.  */
2682 #define BSF_DEBUGGING_RELOC 0x20000
2683
2684   flagword flags;
2685
2686        /* A pointer to the section to which this symbol is
2687           relative.  This will always be non NULL, there are special
2688           sections for undefined and absolute symbols.  */
2689   struct sec *section;
2690
2691        /* Back end special data.  */
2692   union
2693     {
2694       PTR p;
2695       bfd_vma i;
2696     } udata;
2697
2698 } asymbol;
2699 #define bfd_get_symtab_upper_bound(abfd) \
2700      BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd))
2701 boolean
2702 bfd_is_local_label PARAMS ((bfd *abfd, asymbol *sym));
2703
2704 boolean
2705 bfd_is_local_label_name PARAMS ((bfd *abfd, const char *name));
2706
2707 #define bfd_is_local_label_name(abfd, name) \
2708      BFD_SEND (abfd, _bfd_is_local_label_name, (abfd, name))
2709 #define bfd_canonicalize_symtab(abfd, location) \
2710      BFD_SEND (abfd, _bfd_canonicalize_symtab,\
2711                   (abfd, location))
2712 boolean
2713 bfd_set_symtab  PARAMS ((bfd *abfd, asymbol **location, unsigned int count));
2714
2715 void
2716 bfd_print_symbol_vandf PARAMS ((PTR file, asymbol *symbol));
2717
2718 #define bfd_make_empty_symbol(abfd) \
2719      BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
2720 #define bfd_make_debug_symbol(abfd,ptr,size) \
2721         BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
2722 int
2723 bfd_decode_symclass PARAMS ((asymbol *symbol));
2724
2725 boolean
2726 bfd_is_undefined_symclass  PARAMS ((int symclass));
2727
2728 void
2729 bfd_symbol_info PARAMS ((asymbol *symbol, symbol_info *ret));
2730
2731 boolean
2732 bfd_copy_private_symbol_data PARAMS ((bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym));
2733
2734 #define bfd_copy_private_symbol_data(ibfd, isymbol, obfd, osymbol) \
2735      BFD_SEND (obfd, _bfd_copy_private_symbol_data, \
2736                (ibfd, isymbol, obfd, osymbol))
2737 struct _bfd
2738 {
2739     /* The filename the application opened the BFD with.  */
2740     CONST char *filename;
2741
2742     /* A pointer to the target jump table.             */
2743     const struct bfd_target *xvec;
2744
2745     /* To avoid dragging too many header files into every file that
2746        includes `<<bfd.h>>', IOSTREAM has been declared as a "char
2747        *", and MTIME as a "long".  Their correct types, to which they
2748        are cast when used, are "FILE *" and "time_t".    The iostream
2749        is the result of an fopen on the filename.  However, if the
2750        BFD_IN_MEMORY flag is set, then iostream is actually a pointer
2751        to a bfd_in_memory struct.  */
2752     PTR iostream;
2753
2754     /* Is the file descriptor being cached?  That is, can it be closed as
2755        needed, and re-opened when accessed later?  */
2756
2757     boolean cacheable;
2758
2759     /* Marks whether there was a default target specified when the
2760        BFD was opened. This is used to select which matching algorithm
2761        to use to choose the back end. */
2762
2763     boolean target_defaulted;
2764
2765     /* The caching routines use these to maintain a
2766        least-recently-used list of BFDs */
2767
2768     struct _bfd *lru_prev, *lru_next;
2769
2770     /* When a file is closed by the caching routines, BFD retains
2771        state information on the file here: */
2772
2773     file_ptr where;
2774
2775     /* and here: (``once'' means at least once) */
2776
2777     boolean opened_once;
2778
2779     /* Set if we have a locally maintained mtime value, rather than
2780        getting it from the file each time: */
2781
2782     boolean mtime_set;
2783
2784     /* File modified time, if mtime_set is true: */
2785
2786     long mtime;
2787
2788     /* Reserved for an unimplemented file locking extension.*/
2789
2790     int ifd;
2791
2792     /* The format which belongs to the BFD. (object, core, etc.) */
2793
2794     bfd_format format;
2795
2796     /* The direction the BFD was opened with*/
2797
2798     enum bfd_direction {no_direction = 0,
2799                         read_direction = 1,
2800                         write_direction = 2,
2801                         both_direction = 3} direction;
2802
2803     /* Format_specific flags*/
2804
2805     flagword flags;
2806
2807     /* Currently my_archive is tested before adding origin to
2808        anything. I believe that this can become always an add of
2809        origin, with origin set to 0 for non archive files.   */
2810
2811     file_ptr origin;
2812
2813     /* Remember when output has begun, to stop strange things
2814        from happening. */
2815     boolean output_has_begun;
2816
2817     /* Pointer to linked list of sections*/
2818     struct sec  *sections;
2819
2820     /* The number of sections */
2821     unsigned int section_count;
2822
2823     /* Stuff only useful for object files:
2824        The start address. */
2825     bfd_vma start_address;
2826
2827     /* Used for input and output*/
2828     unsigned int symcount;
2829
2830     /* Symbol table for output BFD (with symcount entries) */
2831     struct symbol_cache_entry  **outsymbols;
2832
2833     /* Pointer to structure which contains architecture information*/
2834     const struct bfd_arch_info *arch_info;
2835
2836     /* Stuff only useful for archives:*/
2837     PTR arelt_data;
2838     struct _bfd *my_archive;     /* The containing archive BFD.  */
2839     struct _bfd *next;           /* The next BFD in the archive.  */
2840     struct _bfd *archive_head;   /* The first BFD in the archive.  */
2841     boolean has_armap;
2842
2843     /* A chain of BFD structures involved in a link.  */
2844     struct _bfd *link_next;
2845
2846     /* A field used by _bfd_generic_link_add_archive_symbols.  This will
2847        be used only for archive elements.  */
2848     int archive_pass;
2849
2850     /* Used by the back end to hold private data. */
2851
2852     union
2853       {
2854       struct aout_data_struct *aout_data;
2855       struct artdata *aout_ar_data;
2856       struct _oasys_data *oasys_obj_data;
2857       struct _oasys_ar_data *oasys_ar_data;
2858       struct coff_tdata *coff_obj_data;
2859       struct pe_tdata *pe_obj_data;
2860       struct xcoff_tdata *xcoff_obj_data;
2861       struct ecoff_tdata *ecoff_obj_data;
2862       struct ieee_data_struct *ieee_data;
2863       struct ieee_ar_data_struct *ieee_ar_data;
2864       struct srec_data_struct *srec_data;
2865       struct ihex_data_struct *ihex_data;
2866       struct tekhex_data_struct *tekhex_data;
2867       struct elf_obj_tdata *elf_obj_data;
2868       struct nlm_obj_tdata *nlm_obj_data;
2869       struct bout_data_struct *bout_data;
2870       struct sun_core_struct *sun_core_data;
2871       struct sco5_core_struct *sco5_core_data;
2872       struct trad_core_struct *trad_core_data;
2873       struct som_data_struct *som_data;
2874       struct hpux_core_struct *hpux_core_data;
2875       struct hppabsd_core_struct *hppabsd_core_data;
2876       struct sgi_core_struct *sgi_core_data;
2877       struct lynx_core_struct *lynx_core_data;
2878       struct osf_core_struct *osf_core_data;
2879       struct cisco_core_struct *cisco_core_data;
2880       struct versados_data_struct *versados_data;
2881       struct netbsd_core_struct *netbsd_core_data;
2882       PTR any;
2883       } tdata;
2884
2885     /* Used by the application to hold private data*/
2886     PTR usrdata;
2887
2888   /* Where all the allocated stuff under this BFD goes.  This is a
2889      struct objalloc *, but we use PTR to avoid requiring the inclusion of
2890      objalloc.h.  */
2891     PTR memory;
2892 };
2893
2894 typedef enum bfd_error
2895 {
2896   bfd_error_no_error = 0,
2897   bfd_error_system_call,
2898   bfd_error_invalid_target,
2899   bfd_error_wrong_format,
2900   bfd_error_invalid_operation,
2901   bfd_error_no_memory,
2902   bfd_error_no_symbols,
2903   bfd_error_no_armap,
2904   bfd_error_no_more_archived_files,
2905   bfd_error_malformed_archive,
2906   bfd_error_file_not_recognized,
2907   bfd_error_file_ambiguously_recognized,
2908   bfd_error_no_contents,
2909   bfd_error_nonrepresentable_section,
2910   bfd_error_no_debug_section,
2911   bfd_error_bad_value,
2912   bfd_error_file_truncated,
2913   bfd_error_file_too_big,
2914   bfd_error_invalid_error_code
2915 } bfd_error_type;
2916
2917 bfd_error_type
2918 bfd_get_error  PARAMS ((void));
2919
2920 void
2921 bfd_set_error  PARAMS ((bfd_error_type error_tag));
2922
2923 CONST char *
2924 bfd_errmsg  PARAMS ((bfd_error_type error_tag));
2925
2926 void
2927 bfd_perror  PARAMS ((CONST char *message));
2928
2929 typedef void (*bfd_error_handler_type) PARAMS ((const char *, ...));
2930
2931 bfd_error_handler_type
2932 bfd_set_error_handler  PARAMS ((bfd_error_handler_type));
2933
2934 void
2935 bfd_set_error_program_name  PARAMS ((const char *));
2936
2937 bfd_error_handler_type
2938 bfd_get_error_handler  PARAMS ((void));
2939
2940 long
2941 bfd_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
2942
2943 long
2944 bfd_canonicalize_reloc
2945  PARAMS ((bfd *abfd,
2946     asection *sec,
2947     arelent **loc,
2948     asymbol **syms));
2949
2950 void
2951 bfd_set_reloc
2952  PARAMS ((bfd *abfd, asection *sec, arelent **rel, unsigned int count)
2953
2954     );
2955
2956 boolean
2957 bfd_set_file_flags PARAMS ((bfd *abfd, flagword flags));
2958
2959 boolean
2960 bfd_set_start_address PARAMS ((bfd *abfd, bfd_vma vma));
2961
2962 long
2963 bfd_get_mtime PARAMS ((bfd *abfd));
2964
2965 long
2966 bfd_get_size PARAMS ((bfd *abfd));
2967
2968 int
2969 bfd_get_gp_size PARAMS ((bfd *abfd));
2970
2971 void
2972 bfd_set_gp_size PARAMS ((bfd *abfd, int i));
2973
2974 bfd_vma
2975 bfd_scan_vma PARAMS ((CONST char *string, CONST char **end, int base));
2976
2977 boolean
2978 bfd_copy_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
2979
2980 #define bfd_copy_private_bfd_data(ibfd, obfd) \
2981      BFD_SEND (obfd, _bfd_copy_private_bfd_data, \
2982                (ibfd, obfd))
2983 boolean
2984 bfd_merge_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
2985
2986 #define bfd_merge_private_bfd_data(ibfd, obfd) \
2987      BFD_SEND (obfd, _bfd_merge_private_bfd_data, \
2988                (ibfd, obfd))
2989 boolean
2990 bfd_set_private_flags PARAMS ((bfd *abfd, flagword flags));
2991
2992 #define bfd_set_private_flags(abfd, flags) \
2993      BFD_SEND (abfd, _bfd_set_private_flags, \
2994                (abfd, flags))
2995 #define bfd_sizeof_headers(abfd, reloc) \
2996      BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
2997
2998 #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
2999      BFD_SEND (abfd, _bfd_find_nearest_line,  (abfd, sec, syms, off, file, func, line))
3000
3001        /* Do these three do anything useful at all, for any back end?  */
3002 #define bfd_debug_info_start(abfd) \
3003         BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
3004
3005 #define bfd_debug_info_end(abfd) \
3006         BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
3007
3008 #define bfd_debug_info_accumulate(abfd, section) \
3009         BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
3010
3011
3012 #define bfd_stat_arch_elt(abfd, stat) \
3013         BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
3014
3015 #define bfd_update_armap_timestamp(abfd) \
3016         BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
3017
3018 #define bfd_set_arch_mach(abfd, arch, mach)\
3019         BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
3020
3021 #define bfd_relax_section(abfd, section, link_info, again) \
3022        BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
3023
3024 #define bfd_gc_sections(abfd, link_info) \
3025        BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info))
3026
3027 #define bfd_link_hash_table_create(abfd) \
3028        BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
3029
3030 #define bfd_link_add_symbols(abfd, info) \
3031        BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
3032
3033 #define bfd_final_link(abfd, info) \
3034        BFD_SEND (abfd, _bfd_final_link, (abfd, info))
3035
3036 #define bfd_free_cached_info(abfd) \
3037        BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
3038
3039 #define bfd_get_dynamic_symtab_upper_bound(abfd) \
3040        BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
3041
3042 #define bfd_print_private_bfd_data(abfd, file)\
3043        BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
3044
3045 #define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
3046        BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
3047
3048 #define bfd_get_dynamic_reloc_upper_bound(abfd) \
3049        BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
3050
3051 #define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
3052        BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
3053
3054 extern bfd_byte *bfd_get_relocated_section_contents
3055        PARAMS ((bfd *, struct bfd_link_info *,
3056                  struct bfd_link_order *, bfd_byte *,
3057                  boolean, asymbol **));
3058
3059 symindex
3060 bfd_get_next_mapent PARAMS ((bfd *abfd, symindex previous, carsym **sym));
3061
3062 boolean
3063 bfd_set_archive_head PARAMS ((bfd *output, bfd *new_head));
3064
3065 bfd *
3066 bfd_openr_next_archived_file PARAMS ((bfd *archive, bfd *previous));
3067
3068 CONST char *
3069 bfd_core_file_failing_command PARAMS ((bfd *abfd));
3070
3071 int
3072 bfd_core_file_failing_signal PARAMS ((bfd *abfd));
3073
3074 boolean
3075 core_file_matches_executable_p
3076  PARAMS ((bfd *core_bfd, bfd *exec_bfd));
3077
3078 #define BFD_SEND(bfd, message, arglist) \
3079                ((*((bfd)->xvec->message)) arglist)
3080
3081 #ifdef DEBUG_BFD_SEND
3082 #undef BFD_SEND
3083 #define BFD_SEND(bfd, message, arglist) \
3084   (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
3085     ((*((bfd)->xvec->message)) arglist) : \
3086     (bfd_assert (__FILE__,__LINE__), NULL))
3087 #endif
3088 #define BFD_SEND_FMT(bfd, message, arglist) \
3089             (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
3090
3091 #ifdef DEBUG_BFD_SEND
3092 #undef BFD_SEND_FMT
3093 #define BFD_SEND_FMT(bfd, message, arglist) \
3094   (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
3095    (((bfd)->xvec->message[(int)((bfd)->format)]) arglist) : \
3096    (bfd_assert (__FILE__,__LINE__), NULL))
3097 #endif
3098 enum bfd_flavour {
3099   bfd_target_unknown_flavour,
3100   bfd_target_aout_flavour,
3101   bfd_target_coff_flavour,
3102   bfd_target_ecoff_flavour,
3103   bfd_target_xcoff_flavour,
3104   bfd_target_elf_flavour,
3105   bfd_target_ieee_flavour,
3106   bfd_target_nlm_flavour,
3107   bfd_target_oasys_flavour,
3108   bfd_target_tekhex_flavour,
3109   bfd_target_srec_flavour,
3110   bfd_target_ihex_flavour,
3111   bfd_target_som_flavour,
3112   bfd_target_os9k_flavour,
3113   bfd_target_versados_flavour,
3114   bfd_target_msdos_flavour,
3115   bfd_target_ovax_flavour,
3116   bfd_target_evax_flavour
3117 };
3118
3119 enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
3120
3121 /* Forward declaration.  */
3122 typedef struct bfd_link_info _bfd_link_info;
3123
3124 typedef struct bfd_target
3125 {
3126   char *name;
3127   enum bfd_flavour flavour;
3128   enum bfd_endian byteorder;
3129   enum bfd_endian header_byteorder;
3130   flagword object_flags;
3131   flagword section_flags;
3132   char symbol_leading_char;
3133   char ar_pad_char;
3134   unsigned short ar_max_namelen;
3135   bfd_vma      (*bfd_getx64) PARAMS ((const bfd_byte *));
3136   bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *));
3137   void         (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
3138   bfd_vma      (*bfd_getx32) PARAMS ((const bfd_byte *));
3139   bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *));
3140   void         (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
3141   bfd_vma      (*bfd_getx16) PARAMS ((const bfd_byte *));
3142   bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *));
3143   void         (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
3144   bfd_vma      (*bfd_h_getx64) PARAMS ((const bfd_byte *));
3145   bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *));
3146   void         (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
3147   bfd_vma      (*bfd_h_getx32) PARAMS ((const bfd_byte *));
3148   bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *));
3149   void         (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
3150   bfd_vma      (*bfd_h_getx16) PARAMS ((const bfd_byte *));
3151   bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *));
3152   void         (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
3153   const struct bfd_target *(*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
3154   boolean             (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
3155   boolean             (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
3156
3157   /* Generic entry points.  */
3158 #define BFD_JUMP_TABLE_GENERIC(NAME)\
3159 CAT(NAME,_close_and_cleanup),\
3160 CAT(NAME,_bfd_free_cached_info),\
3161 CAT(NAME,_new_section_hook),\
3162 CAT(NAME,_get_section_contents),\
3163 CAT(NAME,_get_section_contents_in_window)
3164
3165   /* Called when the BFD is being closed to do any necessary cleanup.  */
3166   boolean       (*_close_and_cleanup) PARAMS ((bfd *));
3167   /* Ask the BFD to free all cached information.  */
3168   boolean (*_bfd_free_cached_info) PARAMS ((bfd *));
3169   /* Called when a new section is created.  */
3170   boolean       (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
3171   /* Read the contents of a section.  */
3172   boolean       (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
3173                                             file_ptr, bfd_size_type));
3174   boolean       (*_bfd_get_section_contents_in_window)
3175                           PARAMS ((bfd *, sec_ptr, bfd_window *,
3176                                    file_ptr, bfd_size_type));
3177
3178   /* Entry points to copy private data.  */
3179 #define BFD_JUMP_TABLE_COPY(NAME)\
3180 CAT(NAME,_bfd_copy_private_bfd_data),\
3181 CAT(NAME,_bfd_merge_private_bfd_data),\
3182 CAT(NAME,_bfd_copy_private_section_data),\
3183 CAT(NAME,_bfd_copy_private_symbol_data),\
3184 CAT(NAME,_bfd_set_private_flags),\
3185 CAT(NAME,_bfd_print_private_bfd_data)\
3186   /* Called to copy BFD general private data from one object file
3187      to another.  */
3188   boolean       (*_bfd_copy_private_bfd_data) PARAMS ((bfd *, bfd *));
3189   /* Called to merge BFD general private data from one object file
3190      to a common output file when linking.  */
3191   boolean       (*_bfd_merge_private_bfd_data) PARAMS ((bfd *, bfd *));
3192   /* Called to copy BFD private section data from one object file
3193      to another.  */
3194   boolean       (*_bfd_copy_private_section_data) PARAMS ((bfd *, sec_ptr,
3195                                                        bfd *, sec_ptr));
3196   /* Called to copy BFD private symbol data from one symbol
3197      to another.  */
3198   boolean       (*_bfd_copy_private_symbol_data) PARAMS ((bfd *, asymbol *,
3199                                                           bfd *, asymbol *));
3200   /* Called to set private backend flags */
3201   boolean       (*_bfd_set_private_flags) PARAMS ((bfd *, flagword));
3202
3203   /* Called to print private BFD data */
3204   boolean       (*_bfd_print_private_bfd_data) PARAMS ((bfd *, PTR));
3205
3206   /* Core file entry points.  */
3207 #define BFD_JUMP_TABLE_CORE(NAME)\
3208 CAT(NAME,_core_file_failing_command),\
3209 CAT(NAME,_core_file_failing_signal),\
3210 CAT(NAME,_core_file_matches_executable_p)
3211   char *   (*_core_file_failing_command) PARAMS ((bfd *));
3212   int      (*_core_file_failing_signal) PARAMS ((bfd *));
3213   boolean  (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
3214
3215   /* Archive entry points.  */
3216 #define BFD_JUMP_TABLE_ARCHIVE(NAME)\
3217 CAT(NAME,_slurp_armap),\
3218 CAT(NAME,_slurp_extended_name_table),\
3219 CAT(NAME,_construct_extended_name_table),\
3220 CAT(NAME,_truncate_arname),\
3221 CAT(NAME,_write_armap),\
3222 CAT(NAME,_read_ar_hdr),\
3223 CAT(NAME,_openr_next_archived_file),\
3224 CAT(NAME,_get_elt_at_index),\
3225 CAT(NAME,_generic_stat_arch_elt),\
3226 CAT(NAME,_update_armap_timestamp)
3227   boolean  (*_bfd_slurp_armap) PARAMS ((bfd *));
3228   boolean  (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
3229   boolean  (*_bfd_construct_extended_name_table)
3230              PARAMS ((bfd *, char **, bfd_size_type *, const char **));
3231   void     (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
3232   boolean  (*write_armap) PARAMS ((bfd *arch,
3233                               unsigned int elength,
3234                               struct orl *map,
3235                               unsigned int orl_count,
3236                               int stridx));
3237   PTR (*_bfd_read_ar_hdr_fn) PARAMS ((bfd *));
3238   bfd *    (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
3239 #define bfd_get_elt_at_index(b,i) BFD_SEND(b, _bfd_get_elt_at_index, (b,i))
3240   bfd *    (*_bfd_get_elt_at_index) PARAMS ((bfd *, symindex));
3241   int      (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
3242   boolean  (*_bfd_update_armap_timestamp) PARAMS ((bfd *));
3243
3244   /* Entry points used for symbols.  */
3245 #define BFD_JUMP_TABLE_SYMBOLS(NAME)\
3246 CAT(NAME,_get_symtab_upper_bound),\
3247 CAT(NAME,_get_symtab),\
3248 CAT(NAME,_make_empty_symbol),\
3249 CAT(NAME,_print_symbol),\
3250 CAT(NAME,_get_symbol_info),\
3251 CAT(NAME,_bfd_is_local_label_name),\
3252 CAT(NAME,_get_lineno),\
3253 CAT(NAME,_find_nearest_line),\
3254 CAT(NAME,_bfd_make_debug_symbol),\
3255 CAT(NAME,_read_minisymbols),\
3256 CAT(NAME,_minisymbol_to_symbol)
3257   long  (*_bfd_get_symtab_upper_bound) PARAMS ((bfd *));
3258   long  (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
3259                                              struct symbol_cache_entry **));
3260   struct symbol_cache_entry  *
3261                 (*_bfd_make_empty_symbol) PARAMS ((bfd *));
3262   void          (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
3263                                       struct symbol_cache_entry *,
3264                                       bfd_print_symbol_type));
3265 #define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
3266   void          (*_bfd_get_symbol_info) PARAMS ((bfd *,
3267                                       struct symbol_cache_entry *,
3268                                       symbol_info *));
3269 #define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
3270   boolean       (*_bfd_is_local_label_name) PARAMS ((bfd *, const char *));
3271
3272   alent *    (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
3273   boolean    (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
3274                     struct sec *section, struct symbol_cache_entry **symbols,
3275                     bfd_vma offset, CONST char **file, CONST char **func,
3276                     unsigned int *line));
3277  /* Back-door to allow format-aware applications to create debug symbols
3278     while using BFD for everything else.  Currently used by the assembler
3279     when creating COFF files.  */
3280   asymbol *  (*_bfd_make_debug_symbol) PARAMS ((
3281        bfd *abfd,
3282        void *ptr,
3283        unsigned long size));
3284 #define bfd_read_minisymbols(b, d, m, s) \
3285   BFD_SEND (b, _read_minisymbols, (b, d, m, s))
3286   long  (*_read_minisymbols) PARAMS ((bfd *, boolean, PTR *,
3287                                       unsigned int *));
3288 #define bfd_minisymbol_to_symbol(b, d, m, f) \
3289   BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
3290   asymbol *(*_minisymbol_to_symbol) PARAMS ((bfd *, boolean, const PTR,
3291                                              asymbol *));
3292
3293   /* Routines for relocs.  */
3294 #define BFD_JUMP_TABLE_RELOCS(NAME)\
3295 CAT(NAME,_get_reloc_upper_bound),\
3296 CAT(NAME,_canonicalize_reloc),\
3297 CAT(NAME,_bfd_reloc_type_lookup)
3298   long  (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
3299   long  (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
3300                                             struct symbol_cache_entry **));
3301   /* See documentation on reloc types.  */
3302   reloc_howto_type *
3303        (*reloc_type_lookup) PARAMS ((bfd *abfd,
3304                                      bfd_reloc_code_real_type code));
3305
3306   /* Routines used when writing an object file.  */
3307 #define BFD_JUMP_TABLE_WRITE(NAME)\
3308 CAT(NAME,_set_arch_mach),\
3309 CAT(NAME,_set_section_contents)
3310   boolean    (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
3311                     unsigned long));
3312   boolean       (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
3313                                             file_ptr, bfd_size_type));
3314
3315   /* Routines used by the linker.  */
3316 #define BFD_JUMP_TABLE_LINK(NAME)\
3317 CAT(NAME,_sizeof_headers),\
3318 CAT(NAME,_bfd_get_relocated_section_contents),\
3319 CAT(NAME,_bfd_relax_section),\
3320 CAT(NAME,_bfd_link_hash_table_create),\
3321 CAT(NAME,_bfd_link_add_symbols),\
3322 CAT(NAME,_bfd_final_link),\
3323 CAT(NAME,_bfd_link_split_section),\
3324 CAT(NAME,_bfd_gc_sections)
3325   int        (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
3326   bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
3327                     struct bfd_link_info *, struct bfd_link_order *,
3328                     bfd_byte *data, boolean relocateable,
3329                     struct symbol_cache_entry **));
3330
3331   boolean    (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
3332                     struct bfd_link_info *, boolean *again));
3333
3334   /* Create a hash table for the linker.  Different backends store
3335      different information in this table.  */
3336   struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *));
3337
3338   /* Add symbols from this object file into the hash table.  */
3339   boolean (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
3340
3341   /* Do a link based on the link_order structures attached to each
3342      section of the BFD.  */
3343   boolean (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *));
3344
3345   /* Should this section be split up into smaller pieces during linking.  */
3346   boolean (*_bfd_link_split_section) PARAMS ((bfd *, struct sec *));
3347
3348   /* Remove sections that are not referenced from the output.  */
3349   boolean (*_bfd_gc_sections) PARAMS ((bfd *, struct bfd_link_info *));
3350
3351   /* Routines to handle dynamic symbols and relocs.  */
3352 #define BFD_JUMP_TABLE_DYNAMIC(NAME)\
3353 CAT(NAME,_get_dynamic_symtab_upper_bound),\
3354 CAT(NAME,_canonicalize_dynamic_symtab),\
3355 CAT(NAME,_get_dynamic_reloc_upper_bound),\
3356 CAT(NAME,_canonicalize_dynamic_reloc)
3357   /* Get the amount of memory required to hold the dynamic symbols. */
3358   long  (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *));
3359   /* Read in the dynamic symbols.  */
3360   long  (*_bfd_canonicalize_dynamic_symtab)
3361     PARAMS ((bfd *, struct symbol_cache_entry **));
3362   /* Get the amount of memory required to hold the dynamic relocs.  */
3363   long  (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *));
3364   /* Read in the dynamic relocs.  */
3365   long  (*_bfd_canonicalize_dynamic_reloc)
3366     PARAMS ((bfd *, arelent **, struct symbol_cache_entry **));
3367
3368  /* Opposite endian version of this target.  */
3369  const struct bfd_target * alternative_target;
3370
3371  PTR backend_data;
3372
3373 } bfd_target;
3374 boolean
3375 bfd_set_default_target  PARAMS ((const char *name));
3376
3377 const bfd_target *
3378 bfd_find_target PARAMS ((CONST char *target_name, bfd *abfd));
3379
3380 const char **
3381 bfd_target_list PARAMS ((void));
3382
3383 const bfd_target *
3384 bfd_search_for_target  PARAMS ((int (* search_func)(const bfd_target *, void *), void *));
3385
3386 boolean
3387 bfd_check_format PARAMS ((bfd *abfd, bfd_format format));
3388
3389 boolean
3390 bfd_check_format_matches PARAMS ((bfd *abfd, bfd_format format, char ***matching));
3391
3392 boolean
3393 bfd_set_format PARAMS ((bfd *abfd, bfd_format format));
3394
3395 CONST char *
3396 bfd_format_string PARAMS ((bfd_format format));
3397
3398 #ifdef __cplusplus
3399 }
3400 #endif
3401 #endif