bfd/bfd-in2.h

   1 /* Main header file for the bfd library -- portable access to object files.
   2    Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
   3    Contributed by Cygnus Support.
   4
   5 ** NOTE: bfd.h and bfd-in2.h are GENERATED files.  Don't change them;
   6 ** instead, change bfd-in.h or the other BFD source files processed to
   7 ** generate these files.
   8
   9 This file is part of BFD, the Binary File Descriptor library.
  10
  11 This program is free software; you can redistribute it and/or modify
  12 it under the terms of the GNU General Public License as published by
  13 the Free Software Foundation; either version 2 of the License, or
  14 (at your option) any later version.
  15
  16 This program is distributed in the hope that it will be useful,
  17 but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 GNU General Public License for more details.
  20
  21 You should have received a copy of the GNU General Public License
  22 along with this program; if not, write to the Free Software
  23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  24
  25 /* bfd.h -- The only header file required by users of the bfd library
  26
  27 The bfd.h file is generated from bfd-in.h and various .c files; if you
  28 change it, your changes will probably be lost.
  29
  30 All the prototypes and definitions following the comment "THE FOLLOWING
  31 IS EXTRACTED FROM THE SOURCE" are extracted from the source files for
  32 BFD.  If you change it, someone oneday will extract it from the source
  33 again, and your changes will be lost.  To save yourself from this bind,
  34 change the definitions in the source in the bfd directory.  Type "make
  35 docs" and then "make headers" in that directory, and magically this file
  36 will change to reflect your changes.
  37
  38 If you don't have the tools to perform the extraction, then you are
  39 safe from someone on your system trampling over your header files.
  40 You should still maintain the equivalence between the source and this
  41 file though; every change you make to the .c file should be reflected
  42 here.  */
  43
  44 #ifndef __BFD_H_SEEN__
  45 #define __BFD_H_SEEN__
  46
  47 #include "ansidecl.h"
  48 #include "obstack.h"
  49
  50 #define BFD_VERSION "2.2"
  51
  52 #define BFD_ARCH_SIZE @WORDSIZE@
  53
  54 #if BFD_ARCH_SIZE >= 64
  55 #define BFD64
  56 #endif
  57
  58 #ifndef INLINE
  59 #if __GNUC__ >= 2
  60 #define INLINE __inline__
  61 #else
  62 #define INLINE
  63 #endif
  64 #endif
  65
  66 /* 64-bit type definition (if any) from bfd's sysdep.h goes here */
  67
  68
  69 /* forward declaration */
  70 typedef struct _bfd bfd;
  71
  72 /* To squelch erroneous compiler warnings ("illegal pointer
  73    combination") from the SVR3 compiler, we would like to typedef
  74    boolean to int (it doesn't like functions which return boolean.
  75    Making sure they are never implicitly declared to return int
  76    doesn't seem to help).  But this file is not configured based on
  77    the host.  */
  78 /* General rules: functions which are boolean return true on success
  79    and false on failure (unless they're a predicate).   -- bfd.doc */
  80 /* I'm sure this is going to break something and someone is going to
  81    force me to change it. */
  82 /* typedef enum boolean {false, true} boolean; */
  83 /* Yup, SVR4 has a "typedef enum boolean" in <sys/types.h>  -fnf */
  84 /* It gets worse if the host also defines a true/false enum... -sts */
  85 #ifndef TRUE_FALSE_ALREADY_DEFINED
  86 typedef enum bfd_boolean {false, true} boolean;
  87 #define BFD_TRUE_FALSE
  88 #else
  89 typedef enum bfd_boolean {bfd_false, bfd_true} boolean;
  90 #endif
  91
  92 /* A pointer to a position in a file.  */
  93 /* FIXME:  This should be using off_t from <sys/types.h>.
  94    For now, try to avoid breaking stuff by not including <sys/types.h> here.
  95    This will break on systems with 64-bit file offsets (e.g. 4.4BSD).
  96    Probably the best long-term answer is to avoid using file_ptr AND off_t
  97    in this header file, and to handle this in the BFD implementation
  98    rather than in its interface.  */
  99 /* typedef off_t        file_ptr; */
 100 typedef long int file_ptr;
 101
 102 /* Support for different sizes of target format ints and addresses.  If the
 103    host implements 64-bit values, it defines HOST_64_BIT to be the appropriate
 104    type.  Otherwise, this code will fall back on gcc's "long long" type if gcc
 105    is being used.  HOST_64_BIT must be defined in such a way as to be a valid
 106    type name by itself or with "unsigned" prefixed.  It should be a signed
 107    type by itself.
 108
 109    If neither is the case, then compilation will fail if 64-bit targets are
 110    requested.  If you don't request any 64-bit targets, you should be safe. */
 111
 112 #ifdef  BFD64
 113
 114 #if defined (__GNUC__) && !defined (HOST_64_BIT)
 115 #define HOST_64_BIT long long
 116 typedef HOST_64_BIT int64_type;
 117 typedef unsigned HOST_64_BIT uint64_type;
 118 #endif
 119
 120 #if !defined (uint64_type) && defined (__GNUC__)
 121 #define uint64_type unsigned long long
 122 #define int64_type long long
 123 #endif
 124 #ifndef uint64_typeLOW
 125 #define uint64_typeLOW(x) ((unsigned long)(((x) & 0xffffffff)))
 126 #define uint64_typeHIGH(x) ((unsigned long)(((x) >> 32) & 0xffffffff))
 127 #endif
 128
 129 typedef unsigned HOST_64_BIT bfd_vma;
 130 typedef HOST_64_BIT bfd_signed_vma;
 131 typedef unsigned HOST_64_BIT bfd_size_type;
 132 typedef unsigned HOST_64_BIT symvalue;
 133 #ifndef fprintf_vma
 134 #define fprintf_vma(s,x) \
 135                 fprintf(s,"%08lx%08lx", uint64_typeHIGH(x), uint64_typeLOW(x))
 136 #define sprintf_vma(s,x) \
 137                 sprintf(s,"%08lx%08lx", uint64_typeHIGH(x), uint64_typeLOW(x))
 138 #endif
 139 #else /* not BFD64  */
 140
 141 /* Represent a target address.  Also used as a generic unsigned type
 142    which is guaranteed to be big enough to hold any arithmetic types
 143    we need to deal with.  */
 144 typedef unsigned long bfd_vma;
 145
 146 /* A generic signed type which is guaranteed to be big enough to hold any
 147    arithmetic types we need to deal with.  Can be assumed to be compatible
 148    with bfd_vma in the same way that signed and unsigned ints are compatible
 149    (as parameters, in assignment, etc).  */
 150 typedef long bfd_signed_vma;
 151
 152 typedef unsigned long symvalue;
 153 typedef unsigned long bfd_size_type;
 154
 155 /* Print a bfd_vma x on stream s.  */
 156 #define fprintf_vma(s,x) fprintf(s, "%08lx", x)
 157 #define sprintf_vma(s,x) sprintf(s, "%08lx", x)
 158 #endif /* not BFD64  */
 159 #define printf_vma(x) fprintf_vma(stdout,x)
 160
 161 typedef unsigned int flagword;  /* 32 bits of flags */
 162 \f
 163 /** File formats */
 164
 165 typedef enum bfd_format {
 166               bfd_unknown = 0,  /* file format is unknown */
 167               bfd_object,       /* linker/assember/compiler output */
 168               bfd_archive,      /* object archive file */
 169               bfd_core,         /* core dump */
 170               bfd_type_end}     /* marks the end; don't use it! */
 171          bfd_format;
 172
 173 /* Values that may appear in the flags field of a BFD.  These also
 174    appear in the object_flags field of the bfd_target structure, where
 175    they indicate the set of flags used by that backend (not all flags
 176    are meaningful for all object file formats) (FIXME: at the moment,
 177    the object_flags values have mostly just been copied from backend
 178    to another, and are not necessarily correct).  */
 179
 180 /* No flags.  */
 181 #define NO_FLAGS        0x00
 182
 183 /* BFD contains relocation entries.  */
 184 #define HAS_RELOC       0x01
 185
 186 /* BFD is directly executable.  */
 187 #define EXEC_P          0x02
 188
 189 /* BFD has line number information (basically used for F_LNNO in a
 190    COFF header).  */
 191 #define HAS_LINENO      0x04
 192
 193 /* BFD has debugging information.  */
 194 #define HAS_DEBUG       0x08
 195
 196 /* BFD has symbols.  */
 197 #define HAS_SYMS        0x10
 198
 199 /* BFD has local symbols (basically used for F_LSYMS in a COFF
 200    header).  */
 201 #define HAS_LOCALS      0x20
 202
 203 /* BFD is a dynamic object.  */
 204 #define DYNAMIC         0x40
 205
 206 /* Text section is write protected (if D_PAGED is not set, this is
 207    like an a.out NMAGIC file) (the linker sets this by default, but
 208    clears it for -r or -N).  */
 209 #define WP_TEXT         0x80
 210
 211 /* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
 212    linker sets this by default, but clears it for -r or -n or -N).  */
 213 #define D_PAGED         0x100
 214
 215 /* BFD is relaxable (this means that bfd_relax_section may be able to
 216    do something).  */
 217 #define BFD_IS_RELAXABLE 0x200
 218 \f
 219 /* symbols and relocation */
 220
 221 /* A count of carsyms (canonical archive symbols).  */
 222 typedef unsigned long symindex;
 223
 224 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
 225
 226 /* General purpose part of a symbol X;
 227    target specific parts are in libcoff.h, libaout.h, etc.  */
 228
 229 #define bfd_get_section(x) ((x)->section)
 230 #define bfd_get_output_section(x) ((x)->section->output_section)
 231 #define bfd_set_section(x,y) ((x)->section) = (y)
 232 #define bfd_asymbol_base(x) ((x)->section->vma)
 233 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
 234 #define bfd_asymbol_name(x) ((x)->name)
 235 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
 236 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
 237 #define bfd_asymbol_flavour(x) (bfd_asymbol_bfd(x)->xvec->flavour)
 238
 239 /* A canonical archive symbol.  */
 240 /* This is a type pun with struct ranlib on purpose! */
 241 typedef struct carsym {
 242   char *name;
 243   file_ptr file_offset;         /* look here to find the file */
 244 } carsym;                       /* to make these you call a carsymogen */
 245
 246
 247 /* Used in generating armaps (archive tables of contents).
 248    Perhaps just a forward definition would do? */
 249 struct orl {                    /* output ranlib */
 250   char **name;                  /* symbol name */
 251   file_ptr pos;                 /* bfd* or file position */
 252   int namidx;                   /* index into string table */
 253 };
 254
 255 \f
 256
 257 /* Linenumber stuff */
 258 typedef struct lineno_cache_entry {
 259   unsigned int line_number;     /* Linenumber from start of function*/
 260   union {
 261     struct symbol_cache_entry *sym; /* Function name */
 262     unsigned long offset;       /* Offset into section */
 263   } u;
 264 } alent;
 265 \f
 266 /* object and core file sections */
 267
 268
 269 #define align_power(addr, align)        \
 270         ( ((addr) + ((1<<(align))-1)) & (-1 << (align)))
 271
 272 typedef struct sec *sec_ptr;
 273
 274 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0)
 275 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0)
 276 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0)
 277 #define bfd_section_name(bfd, ptr) ((ptr)->name)
 278 #define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
 279 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
 280 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
 281 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
 282 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
 283
 284 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
 285
 286 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma= (val)), ((ptr)->user_set_vma = true), true)
 287 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),true)
 288 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),true)
 289
 290 typedef struct stat stat_type;
 291 \f
 292 typedef enum bfd_print_symbol
 293 {
 294   bfd_print_symbol_name,
 295   bfd_print_symbol_more,
 296   bfd_print_symbol_all
 297 } bfd_print_symbol_type;
 298
 299 /* Information about a symbol that nm needs.  */
 300
 301 typedef struct _symbol_info
 302 {
 303   symvalue value;
 304   char type;
 305   CONST char *name;            /* Symbol name.  */
 306   char stab_other;             /* Unused. */
 307   short stab_desc;             /* Info for N_TYPE.  */
 308   CONST char *stab_name;
 309 } symbol_info;
 310 \f
 311 /* Hash table routines.  There is no way to free up a hash table.  */
 312
 313 /* An element in the hash table.  Most uses will actually use a larger
 314    structure, and an instance of this will be the first field.  */
 315
 316 struct bfd_hash_entry
 317 {
 318   /* Next entry for this hash code.  */
 319   struct bfd_hash_entry *next;
 320   /* String being hashed.  */
 321   const char *string;
 322   /* Hash code.  This is the full hash code, not the index into the
 323      table.  */
 324   unsigned long hash;
 325 };
 326
 327 /* A hash table.  */
 328
 329 struct bfd_hash_table
 330 {
 331   /* The hash array.  */
 332   struct bfd_hash_entry **table;
 333   /* The number of slots in the hash table.  */
 334   unsigned int size;
 335   /* A function used to create new elements in the hash table.  The
 336      first entry is itself a pointer to an element.  When this
 337      function is first invoked, this pointer will be NULL.  However,
 338      having the pointer permits a hierarchy of method functions to be
 339      built each of which calls the function in the superclass.  Thus
 340      each function should be written to allocate a new block of memory
 341      only if the argument is NULL.  */
 342   struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
 343                                              struct bfd_hash_table *,
 344                                              const char *));
 345   /* An obstack for this hash table.  */
 346   struct obstack memory;
 347 };
 348
 349 /* Initialize a hash table.  */
 350 extern boolean bfd_hash_table_init
 351   PARAMS ((struct bfd_hash_table *,
 352            struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 353                                        struct bfd_hash_table *,
 354                                        const char *)));
 355
 356 /* Initialize a hash table specifying a size.  */
 357 extern boolean bfd_hash_table_init_n
 358   PARAMS ((struct bfd_hash_table *,
 359            struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 360                                        struct bfd_hash_table *,
 361                                        const char *),
 362            unsigned int size));
 363
 364 /* Free up a hash table.  */
 365 extern void bfd_hash_table_free PARAMS ((struct bfd_hash_table *));
 366
 367 /* Look up a string in a hash table.  If CREATE is true, a new entry
 368    will be created for this string if one does not already exist.  The
 369    COPY argument must be true if this routine should copy the string
 370    into newly allocated memory when adding an entry.  */
 371 extern struct bfd_hash_entry *bfd_hash_lookup
 372   PARAMS ((struct bfd_hash_table *, const char *, boolean create,
 373            boolean copy));
 374
 375 /* Base method for creating a hash table entry.  */
 376 extern struct bfd_hash_entry *bfd_hash_newfunc
 377   PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
 378            const char *));
 379
 380 /* Grab some space for a hash table entry.  */
 381 extern PTR bfd_hash_allocate PARAMS ((struct bfd_hash_table *,
 382                                       unsigned int));
 383
 384 /* Traverse a hash table in a random order, calling a function on each
 385    element.  If the function returns false, the traversal stops.  The
 386    INFO argument is passed to the function.  */
 387 extern void bfd_hash_traverse PARAMS ((struct bfd_hash_table *,
 388                                        boolean (*) (struct bfd_hash_entry *,
 389                                                     PTR),
 390                                        PTR info));
 391 \f
 392 /* The code that implements targets can initialize a jump table with this
 393    macro.  It must name all its routines the same way (a prefix plus
 394    the standard routine suffix), or it must #define the routines that
 395    are not so named, before calling JUMP_TABLE in the initializer.  */
 396
 397 /* Semi-portable string concatenation in cpp.
 398    The CAT4 hack is to avoid a problem with some strict ANSI C preprocessors.
 399    The problem is, "32_" is not a valid preprocessing token, and we don't
 400    want extra underscores (e.g., "nlm_32_").  The XCAT2 macro will cause the
 401    inner CAT macros to be evaluated first, producing still-valid pp-tokens.
 402    Then the final concatenation can be done.  (Sigh.)  */
 403 #ifndef CAT
 404 #ifdef SABER
 405 #define CAT(a,b)        a##b
 406 #define CAT3(a,b,c)     a##b##c
 407 #define CAT4(a,b,c,d)   a##b##c##d
 408 #else
 409 #if defined(__STDC__) || defined(ALMOST_STDC)
 410 #define CAT(a,b) a##b
 411 #define CAT3(a,b,c) a##b##c
 412 #define XCAT2(a,b)      CAT(a,b)
 413 #define CAT4(a,b,c,d)   XCAT2(CAT(a,b),CAT(c,d))
 414 #else
 415 #define CAT(a,b) a/**/b
 416 #define CAT3(a,b,c) a/**/b/**/c
 417 #define CAT4(a,b,c,d)   a/**/b/**/c/**/d
 418 #endif
 419 #endif
 420 #endif
 421
 422 #define JUMP_TABLE(NAME)\
 423 CAT(NAME,_core_file_failing_command),\
 424 CAT(NAME,_core_file_failing_signal),\
 425 CAT(NAME,_core_file_matches_executable_p),\
 426 CAT(NAME,_slurp_armap),\
 427 CAT(NAME,_slurp_extended_name_table),\
 428 CAT(NAME,_truncate_arname),\
 429 CAT(NAME,_write_armap),\
 430 CAT(NAME,_close_and_cleanup),\
 431 CAT(NAME,_set_section_contents),\
 432 CAT(NAME,_get_section_contents),\
 433 CAT(NAME,_new_section_hook),\
 434 CAT(NAME,_get_symtab_upper_bound),\
 435 CAT(NAME,_get_symtab),\
 436 CAT(NAME,_get_reloc_upper_bound),\
 437 CAT(NAME,_canonicalize_reloc),\
 438 CAT(NAME,_make_empty_symbol),\
 439 CAT(NAME,_print_symbol),\
 440 CAT(NAME,_get_symbol_info),\
 441 CAT(NAME,_get_lineno),\
 442 CAT(NAME,_set_arch_mach),\
 443 CAT(NAME,_openr_next_archived_file),\
 444 CAT(NAME,_find_nearest_line),\
 445 CAT(NAME,_generic_stat_arch_elt),\
 446 CAT(NAME,_sizeof_headers),\
 447 CAT(NAME,_bfd_debug_info_start),\
 448 CAT(NAME,_bfd_debug_info_end),\
 449 CAT(NAME,_bfd_debug_info_accumulate),\
 450 CAT(NAME,_bfd_get_relocated_section_contents),\
 451 CAT(NAME,_bfd_relax_section),\
 452 CAT(NAME,_bfd_reloc_type_lookup),\
 453 CAT(NAME,_bfd_make_debug_symbol),\
 454 CAT(NAME,_bfd_link_hash_table_create),\
 455 CAT(NAME,_bfd_link_add_symbols),\
 456 CAT(NAME,_bfd_final_link)
 457
 458 #define COFF_SWAP_TABLE (PTR) &bfd_coff_std_swap_table
 459
 460 \f
 461 /* User program access to BFD facilities */
 462
 463 /* Cast from const char * to char * so that caller can assign to
 464    a char * without a warning.  */
 465 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
 466 #define bfd_get_cacheable(abfd) ((abfd)->cacheable)
 467 #define bfd_get_format(abfd) ((abfd)->format)
 468 #define bfd_get_target(abfd) ((abfd)->xvec->name)
 469 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
 470 #define bfd_get_file_flags(abfd) ((abfd)->flags)
 471 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
 472 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
 473 #define bfd_my_archive(abfd) ((abfd)->my_archive)
 474 #define bfd_has_map(abfd) ((abfd)->has_armap)
 475
 476 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
 477 #define bfd_usrdata(abfd) ((abfd)->usrdata)
 478
 479 #define bfd_get_start_address(abfd) ((abfd)->start_address)
 480 #define bfd_get_symcount(abfd) ((abfd)->symcount)
 481 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
 482 #define bfd_count_sections(abfd) ((abfd)->section_count)
 483
 484 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
 485
 486 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = (bool)), true)
 487
 488 /* Byte swapping routines.  */
 489
 490 bfd_vma         bfd_getb64         PARAMS ((const unsigned char *));
 491 bfd_vma         bfd_getl64         PARAMS ((const unsigned char *));
 492 bfd_signed_vma  bfd_getb_signed_64 PARAMS ((const unsigned char *));
 493 bfd_signed_vma  bfd_getl_signed_64 PARAMS ((const unsigned char *));
 494 bfd_vma         bfd_getb32         PARAMS ((const unsigned char *));
 495 bfd_vma         bfd_getl32         PARAMS ((const unsigned char *));
 496 bfd_signed_vma  bfd_getb_signed_32 PARAMS ((const unsigned char *));
 497 bfd_signed_vma  bfd_getl_signed_32 PARAMS ((const unsigned char *));
 498 bfd_vma         bfd_getb16         PARAMS ((const unsigned char *));
 499 bfd_vma         bfd_getl16         PARAMS ((const unsigned char *));
 500 bfd_signed_vma  bfd_getb_signed_16 PARAMS ((const unsigned char *));
 501 bfd_signed_vma  bfd_getl_signed_16 PARAMS ((const unsigned char *));
 502 void            bfd_putb64         PARAMS ((bfd_vma, unsigned char *));
 503 void            bfd_putl64         PARAMS ((bfd_vma, unsigned char *));
 504 void            bfd_putb32         PARAMS ((bfd_vma, unsigned char *));
 505 void            bfd_putl32         PARAMS ((bfd_vma, unsigned char *));
 506 void            bfd_putb16         PARAMS ((bfd_vma, unsigned char *));
 507 void            bfd_putl16         PARAMS ((bfd_vma, unsigned char *));
 508
 509 /* ECOFF linking routines.  */
 510 #if defined(__STDC__) || defined(ALMOST_STDC)
 511 struct ecoff_debug_info;
 512 struct ecoff_debug_swap;
 513 struct ecoff_extr;
 514 struct symbol_cache_entry;
 515 struct bfd_link_info;
 516 #endif
 517 extern PTR bfd_ecoff_debug_init
 518   PARAMS ((bfd *output_bfd, struct ecoff_debug_info *output_debug,
 519            const struct ecoff_debug_swap *output_swap,
 520            struct bfd_link_info *));
 521 extern void bfd_ecoff_debug_free
 522   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 523            const struct ecoff_debug_swap *output_swap,
 524            struct bfd_link_info *));
 525 extern boolean bfd_ecoff_debug_accumulate
 526   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 527            const struct ecoff_debug_swap *output_swap,
 528            bfd *input_bfd, struct ecoff_debug_info *input_debug,
 529            const struct ecoff_debug_swap *input_swap,
 530            struct bfd_link_info *));
 531 extern boolean bfd_ecoff_debug_accumulate_other
 532   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 533            const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 534            struct bfd_link_info *));
 535 extern boolean bfd_ecoff_debug_externals
 536   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 537            const struct ecoff_debug_swap *swap,
 538            boolean relocateable,
 539            boolean (*get_extr) (struct symbol_cache_entry *,
 540                                 struct ecoff_extr *),
 541            void (*set_index) (struct symbol_cache_entry *,
 542                               bfd_size_type)));
 543 extern boolean bfd_ecoff_debug_one_external
 544   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 545            const struct ecoff_debug_swap *swap,
 546            const char *name, struct ecoff_extr *esym));
 547 extern bfd_size_type bfd_ecoff_debug_size
 548   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 549            const struct ecoff_debug_swap *swap));
 550 extern boolean bfd_ecoff_write_debug
 551   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 552            const struct ecoff_debug_swap *swap, file_ptr where));
 553 extern boolean bfd_ecoff_write_accumulated_debug
 554   PARAMS ((PTR handle, bfd *abfd, struct ecoff_debug_info *debug,
 555            const struct ecoff_debug_swap *swap,
 556            struct bfd_link_info *info, file_ptr where));
 557
 558 /* And more from the source.  */
 559 void
 560 bfd_init PARAMS ((void));
 561
 562 bfd *
 563 bfd_openr PARAMS ((CONST char *filename, CONST char *target));
 564
 565 bfd *
 566 bfd_fdopenr PARAMS ((CONST char *filename, CONST char *target, int fd));
 567
 568 bfd *
 569 bfd_openw PARAMS ((CONST char *filename, CONST char *target));
 570
 571 boolean
 572 bfd_close PARAMS ((bfd *abfd));
 573
 574 boolean
 575 bfd_close_all_done PARAMS ((bfd *));
 576
 577 bfd_size_type
 578 bfd_alloc_size PARAMS ((bfd *abfd));
 579
 580 bfd *
 581 bfd_create PARAMS ((CONST char *filename, bfd *templ));
 582
 583
 584  /* Byte swapping macros for user section data.  */
 585
 586 #define bfd_put_8(abfd, val, ptr) \
 587                 (*((unsigned char *)(ptr)) = (unsigned char)(val))
 588 #define bfd_put_signed_8 \
 589                 bfd_put_8
 590 #define bfd_get_8(abfd, ptr) \
 591                 (*(unsigned char *)(ptr))
 592 #define bfd_get_signed_8(abfd, ptr) \
 593                 ((*(unsigned char *)(ptr) ^ 0x80) - 0x80)
 594
 595 #define bfd_put_16(abfd, val, ptr) \
 596                 BFD_SEND(abfd, bfd_putx16, ((val),(ptr)))
 597 #define bfd_put_signed_16 \
 598                  bfd_put_16
 599 #define bfd_get_16(abfd, ptr) \
 600                 BFD_SEND(abfd, bfd_getx16, (ptr))
 601 #define bfd_get_signed_16(abfd, ptr) \
 602                  BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
 603
 604 #define bfd_put_32(abfd, val, ptr) \
 605                 BFD_SEND(abfd, bfd_putx32, ((val),(ptr)))
 606 #define bfd_put_signed_32 \
 607                  bfd_put_32
 608 #define bfd_get_32(abfd, ptr) \
 609                 BFD_SEND(abfd, bfd_getx32, (ptr))
 610 #define bfd_get_signed_32(abfd, ptr) \
 611                  BFD_SEND(abfd, bfd_getx_signed_32, (ptr))
 612
 613 #define bfd_put_64(abfd, val, ptr) \
 614                 BFD_SEND(abfd, bfd_putx64, ((val), (ptr)))
 615 #define bfd_put_signed_64 \
 616                  bfd_put_64
 617 #define bfd_get_64(abfd, ptr) \
 618                 BFD_SEND(abfd, bfd_getx64, (ptr))
 619 #define bfd_get_signed_64(abfd, ptr) \
 620                  BFD_SEND(abfd, bfd_getx_signed_64, (ptr))
 621
 622
 623  /* Byte swapping macros for file header data.  */
 624
 625 #define bfd_h_put_8(abfd, val, ptr) \
 626                 bfd_put_8 (abfd, val, ptr)
 627 #define bfd_h_put_signed_8(abfd, val, ptr) \
 628                 bfd_put_8 (abfd, val, ptr)
 629 #define bfd_h_get_8(abfd, ptr) \
 630                 bfd_get_8 (abfd, ptr)
 631 #define bfd_h_get_signed_8(abfd, ptr) \
 632                 bfd_get_signed_8 (abfd, ptr)
 633
 634 #define bfd_h_put_16(abfd, val, ptr) \
 635                 BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
 636 #define bfd_h_put_signed_16 \
 637                  bfd_h_put_16
 638 #define bfd_h_get_16(abfd, ptr) \
 639                 BFD_SEND(abfd, bfd_h_getx16,(ptr))
 640 #define bfd_h_get_signed_16(abfd, ptr) \
 641                  BFD_SEND(abfd, bfd_h_getx_signed_16, (ptr))
 642
 643 #define bfd_h_put_32(abfd, val, ptr) \
 644                 BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
 645 #define bfd_h_put_signed_32 \
 646                  bfd_h_put_32
 647 #define bfd_h_get_32(abfd, ptr) \
 648                 BFD_SEND(abfd, bfd_h_getx32,(ptr))
 649 #define bfd_h_get_signed_32(abfd, ptr) \
 650                  BFD_SEND(abfd, bfd_h_getx_signed_32, (ptr))
 651
 652 #define bfd_h_put_64(abfd, val, ptr) \
 653                 BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
 654 #define bfd_h_put_signed_64 \
 655                  bfd_h_put_64
 656 #define bfd_h_get_64(abfd, ptr) \
 657                 BFD_SEND(abfd, bfd_h_getx64,(ptr))
 658 #define bfd_h_get_signed_64(abfd, ptr) \
 659                  BFD_SEND(abfd, bfd_h_getx_signed_64, (ptr))
 660
 661 typedef struct sec
 662 {
 663          /* The name of the section; the name isn't a copy, the pointer is
 664         the same as that passed to bfd_make_section. */
 665
 666     CONST char *name;
 667
 668          /* Which section is it; 0..nth.      */
 669
 670    int index;
 671
 672          /* The next section in the list belonging to the BFD, or NULL. */
 673
 674     struct sec *next;
 675
 676          /* The field flags contains attributes of the section. Some
 677            flags are read in from the object file, and some are
 678            synthesized from other information.  */
 679
 680     flagword flags;
 681
 682 #define SEC_NO_FLAGS   0x000
 683
 684          /* Tells the OS to allocate space for this section when loading.
 685            This is clear for a section containing debug information
 686            only. */
 687 #define SEC_ALLOC      0x001
 688
 689          /* Tells the OS to load the section from the file when loading.
 690            This is clear for a .bss section. */
 691 #define SEC_LOAD       0x002
 692
 693          /* The section contains data still to be relocated, so there is
 694            some relocation information too. */
 695 #define SEC_RELOC      0x004
 696
 697 #if 0    /* Obsolete ? */
 698 #define SEC_BALIGN     0x008
 699 #endif
 700
 701          /* A signal to the OS that the section contains read only
 702           data. */
 703 #define SEC_READONLY   0x010
 704
 705          /* The section contains code only. */
 706 #define SEC_CODE       0x020
 707
 708          /* The section contains data only. */
 709 #define SEC_DATA       0x040
 710
 711          /* The section will reside in ROM. */
 712 #define SEC_ROM        0x080
 713
 714          /* The section contains constructor information. This section
 715            type is used by the linker to create lists of constructors and
 716            destructors used by <<g++>>. When a back end sees a symbol
 717            which should be used in a constructor list, it creates a new
 718            section for the type of name (e.g., <<__CTOR_LIST__>>), attaches
 719            the symbol to it, and builds a relocation. To build the lists
 720            of constructors, all the linker has to do is catenate all the
 721            sections called <<__CTOR_LIST__>> and relocate the data
 722            contained within - exactly the operations it would peform on
 723            standard data. */
 724 #define SEC_CONSTRUCTOR 0x100
 725
 726          /* The section is a constuctor, and should be placed at the
 727           end of the text, data, or bss section(?). */
 728 #define SEC_CONSTRUCTOR_TEXT 0x1100
 729 #define SEC_CONSTRUCTOR_DATA 0x2100
 730 #define SEC_CONSTRUCTOR_BSS  0x3100
 731
 732          /* The section has contents - a data section could be
 733            <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>; a debug section could be
 734            <<SEC_HAS_CONTENTS>> */
 735 #define SEC_HAS_CONTENTS 0x200
 736
 737          /* An instruction to the linker to not output the section
 738           even if it has information which would normally be written. */
 739 #define SEC_NEVER_LOAD 0x400
 740
 741          /* The section is a shared library section.  The linker must leave
 742            these completely alone, as the vma and size are used when
 743            the executable is loaded. */
 744 #define SEC_SHARED_LIBRARY 0x800
 745
 746          /* The section is a common section (symbols may be defined
 747            multiple times, the value of a symbol is the amount of
 748            space it requires, and the largest symbol value is the one
 749            used).  Most targets have exactly one of these (which we
 750             translate to bfd_com_section), but ECOFF has two. */
 751 #define SEC_IS_COMMON 0x8000
 752
 753          /* The section contains only debugging information.  For
 754            example, this is set for ELF .debug and .stab sections.
 755            strip tests this flag to see if a section can be
 756            discarded. */
 757 #define SEC_DEBUGGING 0x10000
 758
 759          /*  End of section flags.  */
 760
 761         /*  The virtual memory address of the section - where it will be
 762            at run time.  The symbols are relocated against this.  The
 763             user_set_vma flag is maintained by bfd; if it's not set, the
 764             backend can assign addresses (for example, in <<a.out>>, where
 765             the default address for <<.data>> is dependent on the specific
 766             target and various flags).  */
 767
 768    bfd_vma vma;
 769    boolean user_set_vma;
 770
 771         /*  The load address of the section - where it would be in a
 772            rom image; really only used for writing section header
 773             information. */
 774
 775    bfd_vma lma;
 776
 777          /* The size of the section in bytes, as it will be output.
 778            contains a value even if the section has no contents (e.g., the
 779            size of <<.bss>>). This will be filled in after relocation */
 780
 781    bfd_size_type _cooked_size;
 782
 783          /* The original size on disk of the section, in bytes.  Normally this
 784             value is the same as the size, but if some relaxing has
 785             been done, then this value will be bigger.  */
 786
 787    bfd_size_type _raw_size;
 788
 789          /* If this section is going to be output, then this value is the
 790            offset into the output section of the first byte in the input
 791            section. E.g., if this was going to start at the 100th byte in
 792            the output section, this value would be 100. */
 793
 794    bfd_vma output_offset;
 795
 796          /* The output section through which to map on output. */
 797
 798    struct sec *output_section;
 799
 800          /* The alignment requirement of the section, as an exponent of 2 -
 801            e.g., 3 aligns to 2^3 (or 8). */
 802
 803    unsigned int alignment_power;
 804
 805          /* If an input section, a pointer to a vector of relocation
 806            records for the data in this section. */
 807
 808    struct reloc_cache_entry *relocation;
 809
 810          /* If an output section, a pointer to a vector of pointers to
 811            relocation records for the data in this section. */
 812
 813    struct reloc_cache_entry **orelocation;
 814
 815          /* The number of relocation records in one of the above  */
 816
 817    unsigned reloc_count;
 818
 819          /* Information below is back end specific - and not always used
 820            or updated.  */
 821
 822          /* File position of section data    */
 823
 824    file_ptr filepos;
 825
 826          /* File position of relocation info */
 827
 828    file_ptr rel_filepos;
 829
 830          /* File position of line data       */
 831
 832    file_ptr line_filepos;
 833
 834          /* Pointer to data for applications */
 835
 836    PTR userdata;
 837
 838    struct lang_output_section *otheruserdata;
 839
 840          /* Attached line number information */
 841
 842    alent *lineno;
 843
 844          /* Number of line number records   */
 845
 846    unsigned int lineno_count;
 847
 848          /* When a section is being output, this value changes as more
 849            linenumbers are written out */
 850
 851    file_ptr moving_line_filepos;
 852
 853          /* What the section number is in the target world  */
 854
 855    int target_index;
 856
 857    PTR used_by_bfd;
 858
 859          /* If this is a constructor section then here is a list of the
 860            relocations created to relocate items within it. */
 861
 862    struct relent_chain *constructor_chain;
 863
 864          /* The BFD which owns the section. */
 865
 866    bfd *owner;
 867
 868    boolean reloc_done;
 869           /* A symbol which points at this section only */
 870    struct symbol_cache_entry *symbol;
 871    struct symbol_cache_entry **symbol_ptr_ptr;
 872
 873    struct bfd_link_order *link_order_head;
 874    struct bfd_link_order *link_order_tail;
 875 } asection ;
 876
 877
 878      /* These sections are global, and are managed by BFD.  The application
 879        and target back end are not permitted to change the values in
 880         these sections.  */
 881 #define BFD_ABS_SECTION_NAME "*ABS*"
 882 #define BFD_UND_SECTION_NAME "*UND*"
 883 #define BFD_COM_SECTION_NAME "*COM*"
 884 #define BFD_IND_SECTION_NAME "*IND*"
 885
 886      /* the absolute section */
 887 extern asection bfd_abs_section;
 888      /* Pointer to the undefined section */
 889 extern asection bfd_und_section;
 890      /* Pointer to the common section */
 891 extern asection bfd_com_section;
 892      /* Pointer to the indirect section */
 893 extern asection bfd_ind_section;
 894
 895 extern struct symbol_cache_entry *bfd_abs_symbol;
 896 extern struct symbol_cache_entry *bfd_com_symbol;
 897 extern struct symbol_cache_entry *bfd_und_symbol;
 898 extern struct symbol_cache_entry *bfd_ind_symbol;
 899 #define bfd_get_section_size_before_reloc(section) \
 900      (section->reloc_done ? (abort(),1): (section)->_raw_size)
 901 #define bfd_get_section_size_after_reloc(section) \
 902      ((section->reloc_done) ? (section)->_cooked_size: (abort(),1))
 903 asection *
 904 bfd_get_section_by_name PARAMS ((bfd *abfd, CONST char *name));
 905
 906 asection *
 907 bfd_make_section_old_way PARAMS ((bfd *abfd, CONST char *name));
 908
 909 asection *
 910 bfd_make_section_anyway PARAMS ((bfd *abfd, CONST char *name));
 911
 912 asection *
 913 bfd_make_section PARAMS ((bfd *, CONST char *name));
 914
 915 boolean
 916 bfd_set_section_flags PARAMS ((bfd *abfd, asection *sec, flagword flags));
 917
 918 void
 919 bfd_map_over_sections PARAMS ((bfd *abfd,
 920     void (*func)(bfd *abfd,
 921     asection *sect,
 922     PTR obj),
 923     PTR obj));
 924
 925 boolean
 926 bfd_set_section_size PARAMS ((bfd *abfd, asection *sec, bfd_size_type val));
 927
 928 boolean
 929 bfd_set_section_contents
 930  PARAMS ((bfd *abfd,
 931     asection *section,
 932     PTR data,
 933     file_ptr offset,
 934     bfd_size_type count));
 935
 936 boolean
 937 bfd_get_section_contents
 938  PARAMS ((bfd *abfd, asection *section, PTR location,
 939     file_ptr offset, bfd_size_type count));
 940
 941 enum bfd_architecture
 942 {
 943   bfd_arch_unknown,    /* File arch not known */
 944   bfd_arch_obscure,    /* Arch known, not one of these */
 945   bfd_arch_m68k,       /* Motorola 68xxx */
 946   bfd_arch_vax,        /* DEC Vax */
 947   bfd_arch_i960,       /* Intel 960 */
 948      /* The order of the following is important.
 949        lower number indicates a machine type that
 950        only accepts a subset of the instructions
 951        available to machines with higher numbers.
 952        The exception is the "ca", which is
 953        incompatible with all other machines except
 954        "core". */
 955
 956 #define bfd_mach_i960_core      1
 957 #define bfd_mach_i960_ka_sa     2
 958 #define bfd_mach_i960_kb_sb     3
 959 #define bfd_mach_i960_mc        4
 960 #define bfd_mach_i960_xa        5
 961 #define bfd_mach_i960_ca        6
 962
 963   bfd_arch_a29k,       /* AMD 29000 */
 964   bfd_arch_sparc,      /* SPARC */
 965   bfd_arch_mips,       /* MIPS Rxxxx */
 966   bfd_arch_i386,       /* Intel 386 */
 967   bfd_arch_we32k,      /* AT&T WE32xxx */
 968   bfd_arch_tahoe,      /* CCI/Harris Tahoe */
 969   bfd_arch_i860,       /* Intel 860 */
 970   bfd_arch_romp,       /* IBM ROMP PC/RT */
 971   bfd_arch_alliant,    /* Alliant */
 972   bfd_arch_convex,     /* Convex */
 973   bfd_arch_m88k,       /* Motorola 88xxx */
 974   bfd_arch_pyramid,    /* Pyramid Technology */
 975   bfd_arch_h8300,      /* Hitachi H8/300 */
 976 #define bfd_mach_h8300   1
 977 #define bfd_mach_h8300h  2
 978   bfd_arch_rs6000,     /* IBM RS/6000 */
 979   bfd_arch_hppa,       /* HP PA RISC */
 980   bfd_arch_z8k,        /* Zilog Z8000 */
 981 #define bfd_mach_z8001          1
 982 #define bfd_mach_z8002          2
 983   bfd_arch_h8500,      /* Hitachi H8/500 */
 984   bfd_arch_sh,         /* Hitachi SH */
 985   bfd_arch_alpha,      /* Dec Alpha */
 986   bfd_arch_last
 987   };
 988
 989 typedef struct bfd_arch_info
 990 {
 991   int bits_per_word;
 992   int bits_per_address;
 993   int bits_per_byte;
 994   enum bfd_architecture arch;
 995   long mach;
 996   char *arch_name;
 997   CONST  char *printable_name;
 998   unsigned int section_align_power;
 999   /* true if this is the default machine for the architecture */
1000   boolean the_default;
1001   CONST struct bfd_arch_info * (*compatible)
1002         PARAMS ((CONST struct bfd_arch_info *a,
1003                  CONST struct bfd_arch_info *b));
1004
1005   boolean (*scan) PARAMS ((CONST struct bfd_arch_info *, CONST char *));
1006    /* How to disassemble an instruction, producing a printable
1007      representation on a specified stdio stream.  This isn't
1008      defined for most processors at present, because of the size
1009      of the additional tables it would drag in, and because gdb
1010      wants to use a different interface.  */
1011   unsigned int (*disassemble) PARAMS ((bfd_vma addr, CONST char *data,
1012                                         PTR stream));
1013
1014   struct bfd_arch_info *next;
1015 } bfd_arch_info_type;
1016 CONST char *
1017 bfd_printable_name PARAMS ((bfd *abfd));
1018
1019 bfd_arch_info_type *
1020 bfd_scan_arch PARAMS ((CONST char *string));
1021
1022 CONST bfd_arch_info_type *
1023 bfd_arch_get_compatible PARAMS ((
1024     CONST bfd *abfd,
1025     CONST bfd *bbfd));
1026
1027 void
1028 bfd_set_arch_info PARAMS ((bfd *abfd, bfd_arch_info_type *arg));
1029
1030 enum bfd_architecture
1031 bfd_get_arch PARAMS ((bfd *abfd));
1032
1033 unsigned long
1034 bfd_get_mach PARAMS ((bfd *abfd));
1035
1036 unsigned int
1037 bfd_arch_bits_per_byte PARAMS ((bfd *abfd));
1038
1039 unsigned int
1040 bfd_arch_bits_per_address PARAMS ((bfd *abfd));
1041
1042 bfd_arch_info_type *
1043 bfd_get_arch_info PARAMS ((bfd *abfd));
1044
1045 bfd_arch_info_type *
1046 bfd_lookup_arch
1047  PARAMS ((enum bfd_architecture
1048     arch,
1049     long machine));
1050
1051 CONST char *
1052 bfd_printable_arch_mach
1053  PARAMS ((enum bfd_architecture arch, unsigned long machine));
1054
1055 typedef enum bfd_reloc_status
1056 {
1057         /* No errors detected */
1058   bfd_reloc_ok,
1059
1060         /* The relocation was performed, but there was an overflow. */
1061   bfd_reloc_overflow,
1062
1063         /* The address to relocate was not within the section supplied. */
1064   bfd_reloc_outofrange,
1065
1066         /* Used by special functions */
1067   bfd_reloc_continue,
1068
1069         /* Unsupported relocation size requested. */
1070   bfd_reloc_notsupported,
1071
1072         /* Unused */
1073   bfd_reloc_other,
1074
1075         /* The symbol to relocate against was undefined. */
1076   bfd_reloc_undefined,
1077
1078         /* The relocation was performed, but may not be ok - presently
1079           generated only when linking i960 coff files with i960 b.out
1080           symbols.  If this type is returned, the error_message argument
1081           to bfd_perform_relocation will be set.  */
1082   bfd_reloc_dangerous
1083  }
1084  bfd_reloc_status_type;
1085
1086
1087 typedef struct reloc_cache_entry
1088 {
1089         /* A pointer into the canonical table of pointers  */
1090   struct symbol_cache_entry **sym_ptr_ptr;
1091
1092         /* offset in section */
1093   bfd_size_type address;
1094
1095         /* addend for relocation value */
1096   bfd_vma addend;
1097
1098         /* Pointer to how to perform the required relocation */
1099   const struct reloc_howto_struct *howto;
1100
1101 } arelent;
1102 enum complain_overflow
1103 {
1104          /* Do not complain on overflow. */
1105   complain_overflow_dont,
1106
1107          /* Complain if the bitfield overflows, whether it is considered
1108            as signed or unsigned. */
1109   complain_overflow_bitfield,
1110
1111          /* Complain if the value overflows when considered as signed
1112            number. */
1113   complain_overflow_signed,
1114
1115          /* Complain if the value overflows when considered as an
1116            unsigned number. */
1117   complain_overflow_unsigned
1118 };
1119
1120 typedef struct reloc_howto_struct
1121 {
1122         /*  The type field has mainly a documetary use - the back end can
1123            do what it wants with it, though normally the back end's
1124            external idea of what a reloc number is stored
1125            in this field. For example, a PC relative word relocation
1126            in a coff environment has the type 023 - because that's
1127            what the outside world calls a R_PCRWORD reloc. */
1128   unsigned int type;
1129
1130         /*  The value the final relocation is shifted right by. This drops
1131            unwanted data from the relocation.  */
1132   unsigned int rightshift;
1133
1134          /*  The size of the item to be relocated.  This is *not* a
1135             power-of-two measure.  To get the number of bytes operated
1136             on by a type of relocation, use bfd_get_reloc_size.  */
1137   int size;
1138
1139         /*  The number of bits in the item to be relocated.  This is used
1140             when doing overflow checking.  */
1141   unsigned int bitsize;
1142
1143         /*  Notes that the relocation is relative to the location in the
1144            data section of the addend. The relocation function will
1145            subtract from the relocation value the address of the location
1146            being relocated. */
1147   boolean pc_relative;
1148
1149          /*  The bit position of the reloc value in the destination.
1150             The relocated value is left shifted by this amount. */
1151   unsigned int bitpos;
1152
1153          /* What type of overflow error should be checked for when
1154            relocating. */
1155   enum complain_overflow complain_on_overflow;
1156
1157         /* If this field is non null, then the supplied function is
1158           called rather than the normal function. This allows really
1159           strange relocation methods to be accomodated (e.g., i960 callj
1160           instructions). */
1161   bfd_reloc_status_type (*special_function)
1162                                     PARAMS ((bfd *abfd,
1163                                              arelent *reloc_entry,
1164                                             struct symbol_cache_entry *symbol,
1165                                             PTR data,
1166                                             asection *input_section,
1167                                             bfd *output_bfd,
1168                                             char **error_message));
1169
1170         /* The textual name of the relocation type. */
1171   char *name;
1172
1173         /* When performing a partial link, some formats must modify the
1174           relocations rather than the data - this flag signals this.*/
1175   boolean partial_inplace;
1176
1177         /* The src_mask selects which parts of the read in data
1178           are to be used in the relocation sum.  E.g., if this was an 8 bit
1179           bit of data which we read and relocated, this would be
1180           0x000000ff. When we have relocs which have an addend, such as
1181           sun4 extended relocs, the value in the offset part of a
1182           relocating field is garbage so we never use it. In this case
1183           the mask would be 0x00000000. */
1184   bfd_vma src_mask;
1185
1186         /* The dst_mask selects which parts of the instruction are replaced
1187           into the instruction. In most cases src_mask == dst_mask,
1188           except in the above special case, where dst_mask would be
1189           0x000000ff, and src_mask would be 0x00000000.   */
1190   bfd_vma dst_mask;
1191
1192         /* When some formats create PC relative instructions, they leave
1193           the value of the pc of the place being relocated in the offset
1194           slot of the instruction, so that a PC relative relocation can
1195           be made just by adding in an ordinary offset (e.g., sun3 a.out).
1196           Some formats leave the displacement part of an instruction
1197           empty (e.g., m88k bcs); this flag signals the fact.*/
1198   boolean pcrel_offset;
1199
1200 } reloc_howto_type;
1201 #define HOWTO(C, R,S,B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
1202   {(unsigned)C,R,S,B, P, BI, O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC}
1203 #define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,complain_overflow_dont,FUNCTION, NAME,false,0,0,IN)
1204
1205 #define HOWTO_PREPARE(relocation, symbol)      \
1206   {                                            \
1207   if (symbol != (asymbol *)NULL) {             \
1208     if (bfd_is_com_section (symbol->section)) { \
1209       relocation = 0;                          \
1210     }                                          \
1211     else {                                     \
1212       relocation = symbol->value;              \
1213     }                                          \
1214   }                                            \
1215 }
1216 int
1217 bfd_get_reloc_size  PARAMS ((const reloc_howto_type *));
1218
1219 typedef unsigned char bfd_byte;
1220
1221 typedef struct relent_chain {
1222   arelent relent;
1223   struct   relent_chain *next;
1224 } arelent_chain;
1225 bfd_reloc_status_type
1226
1227 bfd_perform_relocation
1228  PARAMS ((bfd *abfd,
1229     arelent *reloc_entry,
1230     PTR data,
1231     asection *input_section,
1232     bfd *output_bfd,
1233     char **error_message));
1234
1235 typedef enum bfd_reloc_code_real
1236 {
1237    /* Basic absolute relocations */
1238   BFD_RELOC_64,
1239   BFD_RELOC_32,
1240   BFD_RELOC_16,
1241   BFD_RELOC_14,
1242   BFD_RELOC_8,
1243
1244    /* PC-relative relocations */
1245   BFD_RELOC_64_PCREL,
1246   BFD_RELOC_32_PCREL,
1247   BFD_RELOC_24_PCREL,     /* used by i960 */
1248   BFD_RELOC_16_PCREL,
1249   BFD_RELOC_8_PCREL,
1250
1251    /* Linkage-table relative */
1252   BFD_RELOC_32_BASEREL,
1253   BFD_RELOC_16_BASEREL,
1254   BFD_RELOC_8_BASEREL,
1255
1256    /* The type of reloc used to build a contructor table - at the moment
1257      probably a 32 bit wide abs address, but the cpu can choose. */
1258   BFD_RELOC_CTOR,
1259
1260    /* 8 bits wide, but used to form an address like 0xffnn */
1261   BFD_RELOC_8_FFnn,
1262
1263    /* 32-bit pc-relative, shifted right 2 bits (i.e., 30-bit
1264      word displacement, e.g. for SPARC) */
1265   BFD_RELOC_32_PCREL_S2,
1266    /* signed 16-bit pc-relative, shifted right 2 bits (e.g. for MIPS) */
1267   BFD_RELOC_16_PCREL_S2,
1268    /* this is used on the Alpha */
1269   BFD_RELOC_23_PCREL_S2,
1270
1271    /* High 22 bits of 32-bit value, placed into lower 22 bits of
1272      target word; simple reloc.  */
1273   BFD_RELOC_HI22,
1274    /* Low 10 bits.  */
1275   BFD_RELOC_LO10,
1276
1277    /* For systems that allocate a Global Pointer register, these are
1278      displacements off that register.  These relocation types are
1279      handled specially, because the value the register will have is
1280      decided relatively late.  */
1281   BFD_RELOC_GPREL16,
1282   BFD_RELOC_GPREL32,
1283
1284    /* Reloc types used for i960/b.out.  */
1285   BFD_RELOC_I960_CALLJ,
1286
1287    /* now for the sparc/elf codes */
1288   BFD_RELOC_NONE,                /* actually used */
1289   BFD_RELOC_SPARC_WDISP22,
1290   BFD_RELOC_SPARC22,
1291   BFD_RELOC_SPARC13,
1292   BFD_RELOC_SPARC_GOT10,
1293   BFD_RELOC_SPARC_GOT13,
1294   BFD_RELOC_SPARC_GOT22,
1295   BFD_RELOC_SPARC_PC10,
1296   BFD_RELOC_SPARC_PC22,
1297   BFD_RELOC_SPARC_WPLT30,
1298   BFD_RELOC_SPARC_COPY,
1299   BFD_RELOC_SPARC_GLOB_DAT,
1300   BFD_RELOC_SPARC_JMP_SLOT,
1301   BFD_RELOC_SPARC_RELATIVE,
1302   BFD_RELOC_SPARC_UA32,
1303
1304    /* these are a.out specific? */
1305   BFD_RELOC_SPARC_BASE13,
1306   BFD_RELOC_SPARC_BASE22,
1307
1308    /* start-sanitize-v9 */
1309   BFD_RELOC_SPARC_10,
1310   BFD_RELOC_SPARC_11,
1311 #define  BFD_RELOC_SPARC_64 BFD_RELOC_64
1312   BFD_RELOC_SPARC_OLO10,
1313   BFD_RELOC_SPARC_HH22,
1314   BFD_RELOC_SPARC_HM10,
1315   BFD_RELOC_SPARC_LM22,
1316   BFD_RELOC_SPARC_PC_HH22,
1317   BFD_RELOC_SPARC_PC_HM10,
1318   BFD_RELOC_SPARC_PC_LM22,
1319   BFD_RELOC_SPARC_WDISP16,
1320   BFD_RELOC_SPARC_WDISP19,
1321   BFD_RELOC_SPARC_GLOB_JMP,
1322   BFD_RELOC_SPARC_LO7,
1323    /* end-sanitize-v9 */
1324
1325    /* Alpha ECOFF relocations.  Some of these treat the symbol or "addend"
1326      in some special way.  */
1327    /* For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1328      writing; when reading, it will be the absolute section symbol.  The
1329      addend is the displacement in bytes of the "lda" instruction from
1330      the "ldah" instruction (which is at the address of this reloc).  */
1331   BFD_RELOC_ALPHA_GPDISP_HI16,
1332    /* For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1333      with GPDISP_HI16 relocs.  The addend is ignored when writing the
1334      relocations out, and is filled in with the file's GP value on
1335      reading, for convenience.  */
1336   BFD_RELOC_ALPHA_GPDISP_LO16,
1337
1338    /* The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1339      the assembler turns it into a LDQ instruction to load the address of
1340      the symbol, and then fills in a register in the real instruction.
1341
1342      The LITERAL reloc, at the LDQ instruction, refers to the .lita
1343      section symbol.  The addend is ignored when writing, but is filled
1344      in with the file's GP value on reading, for convenience, as with the
1345      GPDISP_LO16 reloc.
1346
1347      The LITUSE reloc, on the instruction using the loaded address, gives
1348      information to the linker that it might be able to use to optimize
1349      away some literal section references.  The symbol is ignored (read
1350      as the absolute section symbol), and the "addend" indicates the type
1351      of instruction using the register:
1352               1 - "memory" fmt insn
1353               2 - byte-manipulation (byte offset reg)
1354               3 - jsr (target of branch)
1355
1356      The GNU linker currently doesn't do any of this optimizing.  */
1357   BFD_RELOC_ALPHA_LITERAL,
1358   BFD_RELOC_ALPHA_LITUSE,
1359
1360    /* The HINT relocation indicates a value that should be filled into the
1361      "hint" field of a jmp/jsr/ret instruction, for possible branch-
1362      prediction logic which may be provided on some processors.  */
1363   BFD_RELOC_ALPHA_HINT,
1364
1365    /* Bits 27..2 of the relocation address shifted right 2 bits;
1366      simple reloc otherwise.  */
1367   BFD_RELOC_MIPS_JMP,
1368
1369    /* High 16 bits of 32-bit value; simple reloc.  */
1370   BFD_RELOC_HI16,
1371    /* High 16 bits of 32-bit value but the low 16 bits will be sign
1372      extended and added to form the final result.  If the low 16
1373      bits form a negative number, we need to add one to the high value
1374      to compensate for the borrow when the low bits are added.  */
1375   BFD_RELOC_HI16_S,
1376    /* Low 16 bits.  */
1377   BFD_RELOC_LO16,
1378
1379    /* relocation relative to the global pointer.  */
1380 #define BFD_RELOC_MIPS_GPREL BFD_RELOC_GPREL16
1381
1382    /* Relocation against a MIPS literal section.  */
1383   BFD_RELOC_MIPS_LITERAL,
1384
1385    /* MIPS ELF relocations.  */
1386   BFD_RELOC_MIPS_GOT16,
1387   BFD_RELOC_MIPS_CALL16,
1388 #define BFD_RELOC_MIPS_GPREL32 BFD_RELOC_GPREL32
1389
1390    /* These are, so far, specific to HPPA processors.  I'm not sure that some
1391      don't duplicate other reloc types, such as BFD_RELOC_32 and _32_PCREL.
1392      Also, many more were in the list I got that don't fit in well in the
1393      model BFD uses, so I've omitted them for now.  If we do make this reloc
1394      type get used for code that really does implement the funky reloc types,
1395      they'll have to be added to this list.  */
1396   BFD_RELOC_HPPA_32,
1397   BFD_RELOC_HPPA_11,
1398   BFD_RELOC_HPPA_14,
1399   BFD_RELOC_HPPA_17,
1400
1401   BFD_RELOC_HPPA_L21,
1402   BFD_RELOC_HPPA_R11,
1403   BFD_RELOC_HPPA_R14,
1404   BFD_RELOC_HPPA_R17,
1405   BFD_RELOC_HPPA_LS21,
1406   BFD_RELOC_HPPA_RS11,
1407   BFD_RELOC_HPPA_RS14,
1408   BFD_RELOC_HPPA_RS17,
1409   BFD_RELOC_HPPA_LD21,
1410   BFD_RELOC_HPPA_RD11,
1411   BFD_RELOC_HPPA_RD14,
1412   BFD_RELOC_HPPA_RD17,
1413   BFD_RELOC_HPPA_LR21,
1414   BFD_RELOC_HPPA_RR14,
1415   BFD_RELOC_HPPA_RR17,
1416
1417   BFD_RELOC_HPPA_GOTOFF_11,
1418   BFD_RELOC_HPPA_GOTOFF_14,
1419   BFD_RELOC_HPPA_GOTOFF_L21,
1420   BFD_RELOC_HPPA_GOTOFF_R11,
1421   BFD_RELOC_HPPA_GOTOFF_R14,
1422   BFD_RELOC_HPPA_GOTOFF_LS21,
1423   BFD_RELOC_HPPA_GOTOFF_RS11,
1424   BFD_RELOC_HPPA_GOTOFF_RS14,
1425   BFD_RELOC_HPPA_GOTOFF_LD21,
1426   BFD_RELOC_HPPA_GOTOFF_RD11,
1427   BFD_RELOC_HPPA_GOTOFF_RD14,
1428   BFD_RELOC_HPPA_GOTOFF_LR21,
1429   BFD_RELOC_HPPA_GOTOFF_RR14,
1430
1431   BFD_RELOC_HPPA_DLT_32,
1432   BFD_RELOC_HPPA_DLT_11,
1433   BFD_RELOC_HPPA_DLT_14,
1434   BFD_RELOC_HPPA_DLT_L21,
1435   BFD_RELOC_HPPA_DLT_R11,
1436   BFD_RELOC_HPPA_DLT_R14,
1437
1438   BFD_RELOC_HPPA_ABS_CALL_11,
1439   BFD_RELOC_HPPA_ABS_CALL_14,
1440   BFD_RELOC_HPPA_ABS_CALL_17,
1441   BFD_RELOC_HPPA_ABS_CALL_L21,
1442   BFD_RELOC_HPPA_ABS_CALL_R11,
1443   BFD_RELOC_HPPA_ABS_CALL_R14,
1444   BFD_RELOC_HPPA_ABS_CALL_R17,
1445   BFD_RELOC_HPPA_ABS_CALL_LS21,
1446   BFD_RELOC_HPPA_ABS_CALL_RS11,
1447   BFD_RELOC_HPPA_ABS_CALL_RS14,
1448   BFD_RELOC_HPPA_ABS_CALL_RS17,
1449   BFD_RELOC_HPPA_ABS_CALL_LD21,
1450   BFD_RELOC_HPPA_ABS_CALL_RD11,
1451   BFD_RELOC_HPPA_ABS_CALL_RD14,
1452   BFD_RELOC_HPPA_ABS_CALL_RD17,
1453   BFD_RELOC_HPPA_ABS_CALL_LR21,
1454   BFD_RELOC_HPPA_ABS_CALL_RR14,
1455   BFD_RELOC_HPPA_ABS_CALL_RR17,
1456
1457   BFD_RELOC_HPPA_PCREL_CALL_11,
1458   BFD_RELOC_HPPA_PCREL_CALL_12,
1459   BFD_RELOC_HPPA_PCREL_CALL_14,
1460   BFD_RELOC_HPPA_PCREL_CALL_17,
1461   BFD_RELOC_HPPA_PCREL_CALL_L21,
1462   BFD_RELOC_HPPA_PCREL_CALL_R11,
1463   BFD_RELOC_HPPA_PCREL_CALL_R14,
1464   BFD_RELOC_HPPA_PCREL_CALL_R17,
1465   BFD_RELOC_HPPA_PCREL_CALL_LS21,
1466   BFD_RELOC_HPPA_PCREL_CALL_RS11,
1467   BFD_RELOC_HPPA_PCREL_CALL_RS14,
1468   BFD_RELOC_HPPA_PCREL_CALL_RS17,
1469   BFD_RELOC_HPPA_PCREL_CALL_LD21,
1470   BFD_RELOC_HPPA_PCREL_CALL_RD11,
1471   BFD_RELOC_HPPA_PCREL_CALL_RD14,
1472   BFD_RELOC_HPPA_PCREL_CALL_RD17,
1473   BFD_RELOC_HPPA_PCREL_CALL_LR21,
1474   BFD_RELOC_HPPA_PCREL_CALL_RR14,
1475   BFD_RELOC_HPPA_PCREL_CALL_RR17,
1476
1477   BFD_RELOC_HPPA_PLABEL_32,
1478   BFD_RELOC_HPPA_PLABEL_11,
1479   BFD_RELOC_HPPA_PLABEL_14,
1480   BFD_RELOC_HPPA_PLABEL_L21,
1481   BFD_RELOC_HPPA_PLABEL_R11,
1482   BFD_RELOC_HPPA_PLABEL_R14,
1483
1484   BFD_RELOC_HPPA_UNWIND_ENTRY,
1485   BFD_RELOC_HPPA_UNWIND_ENTRIES,
1486
1487    /* i386/elf relocations */
1488   BFD_RELOC_386_GOT32,
1489   BFD_RELOC_386_PLT32,
1490   BFD_RELOC_386_COPY,
1491   BFD_RELOC_386_GLOB_DAT,
1492   BFD_RELOC_386_JUMP_SLOT,
1493   BFD_RELOC_386_RELATIVE,
1494   BFD_RELOC_386_GOTOFF,
1495   BFD_RELOC_386_GOTPC,
1496
1497    /* this must be the highest numeric value */
1498   BFD_RELOC_UNUSED
1499  } bfd_reloc_code_real_type;
1500 const struct reloc_howto_struct *
1501
1502 bfd_reloc_type_lookup  PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
1503
1504
1505 typedef struct symbol_cache_entry
1506 {
1507          /* A pointer to the BFD which owns the symbol. This information
1508            is necessary so that a back end can work out what additional
1509            information (invisible to the application writer) is carried
1510            with the symbol.
1511
1512            This field is *almost* redundant, since you can use section->owner
1513            instead, except that some symbols point to the global sections
1514            bfd_{abs,com,und}_section.  This could be fixed by making
1515            these globals be per-bfd (or per-target-flavor).  FIXME. */
1516
1517   struct _bfd *the_bfd;  /* Use bfd_asymbol_bfd(sym) to access this field. */
1518
1519          /* The text of the symbol. The name is left alone, and not copied; the
1520            application may not alter it. */
1521   CONST char *name;
1522
1523          /* The value of the symbol.  This really should be a union of a
1524           numeric value with a pointer, since some flags indicate that
1525           a pointer to another symbol is stored here.  */
1526   symvalue value;
1527
1528          /* Attributes of a symbol: */
1529
1530 #define BSF_NO_FLAGS    0x00
1531
1532          /* The symbol has local scope; <<static>> in <<C>>. The value
1533            is the offset into the section of the data. */
1534 #define BSF_LOCAL       0x01
1535
1536          /* The symbol has global scope; initialized data in <<C>>. The
1537            value is the offset into the section of the data. */
1538 #define BSF_GLOBAL      0x02
1539
1540          /* The symbol has global scope and is exported. The value is
1541            the offset into the section of the data. */
1542 #define BSF_EXPORT      BSF_GLOBAL  /* no real difference */
1543
1544          /* A normal C symbol would be one of:
1545            <<BSF_LOCAL>>, <<BSF_FORT_COMM>>,  <<BSF_UNDEFINED>> or
1546            <<BSF_GLOBAL>> */
1547
1548          /* The symbol is a debugging record. The value has an arbitary
1549            meaning. */
1550 #define BSF_DEBUGGING   0x08
1551
1552          /* The symbol denotes a function entry point.  Used in ELF,
1553            perhaps others someday.  */
1554 #define BSF_FUNCTION    0x10
1555
1556          /* Used by the linker. */
1557 #define BSF_KEEP        0x20
1558 #define BSF_KEEP_G      0x40
1559
1560          /* A weak global symbol, overridable without warnings by
1561            a regular global symbol of the same name.  */
1562 #define BSF_WEAK        0x80
1563
1564         /* This symbol was created to point to a section, e.g. ELF's
1565            STT_SECTION symbols.  */
1566 #define BSF_SECTION_SYM 0x100
1567
1568          /* The symbol used to be a common symbol, but now it is
1569            allocated. */
1570 #define BSF_OLD_COMMON  0x200
1571
1572          /* The default value for common data. */
1573 #define BFD_FORT_COMM_DEFAULT_VALUE 0
1574
1575          /* In some files the type of a symbol sometimes alters its
1576            location in an output file - ie in coff a <<ISFCN>> symbol
1577            which is also <<C_EXT>> symbol appears where it was
1578            declared and not at the end of a section.  This bit is set
1579            by the target BFD part to convey this information. */
1580
1581 #define BSF_NOT_AT_END    0x400
1582
1583          /* Signal that the symbol is the label of constructor section. */
1584 #define BSF_CONSTRUCTOR   0x800
1585
1586          /* Signal that the symbol is a warning symbol. If the symbol
1587            is a warning symbol, then the value field (I know this is
1588            tacky) will point to the asymbol which when referenced will
1589            cause the warning. */
1590 #define BSF_WARNING       0x1000
1591
1592          /* Signal that the symbol is indirect. The value of the symbol
1593            is a pointer to an undefined asymbol which contains the
1594            name to use instead. */
1595 #define BSF_INDIRECT      0x2000
1596
1597          /* BSF_FILE marks symbols that contain a file name.  This is used
1598            for ELF STT_FILE symbols.  */
1599 #define BSF_FILE          0x4000
1600
1601          /* Symbol is from dynamic linking information.  */
1602 #define BSF_DYNAMIC        0x8000
1603
1604   flagword flags;
1605
1606          /* A pointer to the section to which this symbol is
1607            relative.  This will always be non NULL, there are special
1608           sections for undefined and absolute symbols */
1609   struct sec *section;
1610
1611          /* Back end special data. This is being phased out in favour
1612            of making this a union. */
1613   PTR udata;
1614
1615 } asymbol;
1616 #define get_symtab_upper_bound(abfd) \
1617      BFD_SEND (abfd, _get_symtab_upper_bound, (abfd))
1618 #define bfd_canonicalize_symtab(abfd, location) \
1619      BFD_SEND (abfd, _bfd_canonicalize_symtab,\
1620                   (abfd, location))
1621 boolean
1622 bfd_set_symtab  PARAMS ((bfd *abfd, asymbol **location, unsigned int count));
1623
1624 void
1625 bfd_print_symbol_vandf PARAMS ((PTR file, asymbol *symbol));
1626
1627 #define bfd_make_empty_symbol(abfd) \
1628      BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
1629 #define bfd_make_debug_symbol(abfd,ptr,size) \
1630         BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
1631 int
1632 bfd_decode_symclass PARAMS ((asymbol *symbol));
1633
1634 void
1635 bfd_symbol_info PARAMS ((asymbol *symbol, symbol_info *ret));
1636
1637 struct _bfd
1638 {
1639      /* The filename the application opened the BFD with.  */
1640     CONST char *filename;
1641
1642      /* A pointer to the target jump table.             */
1643     struct bfd_target *xvec;
1644
1645      /* To avoid dragging too many header files into every file that
1646        includes `<<bfd.h>>', IOSTREAM has been declared as a "char
1647        *", and MTIME as a "long".  Their correct types, to which they
1648        are cast when used, are "FILE *" and "time_t".    The iostream
1649        is the result of an fopen on the filename. */
1650     char *iostream;
1651
1652      /* Is the file descriptor being cached?  That is, can it be closed as
1653        needed, and re-opened when accessed later?  */
1654
1655     boolean cacheable;
1656
1657      /* Marks whether there was a default target specified when the
1658        BFD was opened. This is used to select which matching algorithm
1659        to use to choose the back end. */
1660
1661     boolean target_defaulted;
1662
1663      /* The caching routines use these to maintain a
1664        least-recently-used list of BFDs */
1665
1666     struct _bfd *lru_prev, *lru_next;
1667
1668      /* When a file is closed by the caching routines, BFD retains
1669        state information on the file here: */
1670
1671     file_ptr where;
1672
1673      /* and here: (``once'' means at least once) */
1674
1675     boolean opened_once;
1676
1677      /* Set if we have a locally maintained mtime value, rather than
1678        getting it from the file each time: */
1679
1680     boolean mtime_set;
1681
1682      /* File modified time, if mtime_set is true: */
1683
1684     long mtime;
1685
1686      /* Reserved for an unimplemented file locking extension.*/
1687
1688     int ifd;
1689
1690      /* The format which belongs to the BFD. (object, core, etc.) */
1691
1692     bfd_format format;
1693
1694      /* The direction the BFD was opened with*/
1695
1696     enum bfd_direction {no_direction = 0,
1697                         read_direction = 1,
1698                         write_direction = 2,
1699                         both_direction = 3} direction;
1700
1701      /* Format_specific flags*/
1702
1703     flagword flags;
1704
1705      /* Currently my_archive is tested before adding origin to
1706        anything. I believe that this can become always an add of
1707        origin, with origin set to 0 for non archive files.   */
1708
1709     file_ptr origin;
1710
1711      /* Remember when output has begun, to stop strange things
1712        from happening. */
1713     boolean output_has_begun;
1714
1715      /* Pointer to linked list of sections*/
1716     struct sec  *sections;
1717
1718      /* The number of sections */
1719     unsigned int section_count;
1720
1721      /* Stuff only useful for object files:
1722        The start address. */
1723     bfd_vma start_address;
1724
1725      /* Used for input and output*/
1726     unsigned int symcount;
1727
1728      /* Symbol table for output BFD (with symcount entries) */
1729     struct symbol_cache_entry  **outsymbols;
1730
1731      /* Pointer to structure which contains architecture information*/
1732     struct bfd_arch_info *arch_info;
1733
1734      /* Stuff only useful for archives:*/
1735     PTR arelt_data;
1736     struct _bfd *my_archive;      /* The containing archive BFD.  */
1737     struct _bfd *next;            /* The next BFD in the archive.  */
1738     struct _bfd *archive_head;    /* The first BFD in the archive.  */
1739     boolean has_armap;
1740
1741      /* A chain of BFD structures involved in a link.  */
1742     struct _bfd *link_next;
1743
1744      /* A field used by _bfd_generic_link_add_archive_symbols.  This will
1745        be used only for archive elements.  */
1746     int archive_pass;
1747
1748      /* Used by the back end to hold private data. */
1749
1750     union
1751       {
1752       struct aout_data_struct *aout_data;
1753       struct artdata *aout_ar_data;
1754       struct _oasys_data *oasys_obj_data;
1755       struct _oasys_ar_data *oasys_ar_data;
1756       struct coff_tdata *coff_obj_data;
1757       struct ecoff_tdata *ecoff_obj_data;
1758       struct ieee_data_struct *ieee_data;
1759       struct ieee_ar_data_struct *ieee_ar_data;
1760       struct srec_data_struct *srec_data;
1761       struct tekhex_data_struct *tekhex_data;
1762       struct elf_obj_tdata *elf_obj_data;
1763       struct nlm_obj_tdata *nlm_obj_data;
1764       struct bout_data_struct *bout_data;
1765       struct sun_core_struct *sun_core_data;
1766       struct trad_core_struct *trad_core_data;
1767       struct som_data_struct *som_data;
1768       struct hpux_core_struct *hpux_core_data;
1769       struct hppabsd_core_struct *hppabsd_core_data;
1770       struct sgi_core_struct *sgi_core_data;
1771       struct lynx_core_struct *lynx_core_data;
1772       struct osf_core_struct *osf_core_data;
1773       PTR any;
1774       } tdata;
1775
1776      /* Used by the application to hold private data*/
1777     PTR usrdata;
1778
1779      /* Where all the allocated stuff under this BFD goes */
1780     struct obstack memory;
1781 };
1782
1783 typedef enum bfd_error
1784 {
1785   no_error = 0,
1786   system_call_error,
1787   invalid_target,
1788   wrong_format,
1789   invalid_operation,
1790   no_memory,
1791   no_symbols,
1792   no_more_archived_files,
1793   malformed_archive,
1794   file_not_recognized,
1795   file_ambiguously_recognized,
1796   no_contents,
1797   nonrepresentable_section,
1798   no_debug_section,
1799   bad_value,
1800   file_truncated,
1801   invalid_error_code
1802 } bfd_ec;
1803
1804 extern bfd_ec bfd_error;
1805
1806 CONST char *
1807 bfd_errmsg  PARAMS ((bfd_ec error_tag));
1808
1809 void
1810 bfd_perror  PARAMS ((CONST char *message));
1811
1812 unsigned int
1813 bfd_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
1814
1815 unsigned int
1816 bfd_canonicalize_reloc
1817  PARAMS ((bfd *abfd,
1818     asection *sec,
1819     arelent **loc,
1820     asymbol     **syms));
1821
1822 void
1823 bfd_set_reloc
1824  PARAMS ((bfd *abfd, asection *sec, arelent **rel, unsigned int count)
1825
1826     );
1827
1828 boolean
1829 bfd_set_file_flags PARAMS ((bfd *abfd, flagword flags));
1830
1831 boolean
1832 bfd_set_start_address PARAMS ((bfd *abfd, bfd_vma vma));
1833
1834 long
1835 bfd_get_mtime PARAMS ((bfd *abfd));
1836
1837 long
1838 bfd_get_size PARAMS ((bfd *abfd));
1839
1840 int
1841 bfd_get_gp_size PARAMS ((bfd *abfd));
1842
1843 void
1844 bfd_set_gp_size PARAMS ((bfd *abfd, int i));
1845
1846 bfd_vma
1847 bfd_scan_vma PARAMS ((CONST char *string, CONST char **end, int base));
1848
1849 #define bfd_sizeof_headers(abfd, reloc) \
1850      BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
1851
1852 #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
1853      BFD_SEND (abfd, _bfd_find_nearest_line,  (abfd, sec, syms, off, file, func, line))
1854
1855         /* Do these three do anything useful at all, for any back end?  */
1856 #define bfd_debug_info_start(abfd) \
1857         BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
1858
1859 #define bfd_debug_info_end(abfd) \
1860         BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
1861
1862 #define bfd_debug_info_accumulate(abfd, section) \
1863         BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
1864
1865
1866 #define bfd_stat_arch_elt(abfd, stat) \
1867         BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
1868
1869 #define bfd_set_arch_mach(abfd, arch, mach)\
1870         BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
1871
1872 #define bfd_get_relocated_section_contents(abfd, link_info, link_order, data, relocateable, symbols) \
1873         BFD_SEND (abfd, _bfd_get_relocated_section_contents, \
1874                  (abfd, link_info, link_order, data, relocateable, symbols))
1875
1876 #define bfd_relax_section(abfd, section, link_info, symbols) \
1877        BFD_SEND (abfd, _bfd_relax_section, \
1878                  (abfd, section, link_info, symbols))
1879
1880 #define bfd_link_hash_table_create(abfd) \
1881         BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
1882
1883 #define bfd_link_add_symbols(abfd, info) \
1884         BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
1885
1886 #define bfd_final_link(abfd, info) \
1887         BFD_SEND (abfd, _bfd_final_link, (abfd, info))
1888
1889 symindex
1890 bfd_get_next_mapent PARAMS ((bfd *abfd, symindex previous, carsym **sym));
1891
1892 boolean
1893 bfd_set_archive_head PARAMS ((bfd *output, bfd *new_head));
1894
1895 bfd *
1896 bfd_get_elt_at_index PARAMS ((bfd *archive, int index));
1897
1898 bfd *
1899 bfd_openr_next_archived_file PARAMS ((bfd *archive, bfd *previous));
1900
1901 CONST char *
1902 bfd_core_file_failing_command PARAMS ((bfd *abfd));
1903
1904 int
1905 bfd_core_file_failing_signal PARAMS ((bfd *abfd));
1906
1907 boolean
1908 core_file_matches_executable_p
1909  PARAMS ((bfd *core_bfd, bfd *exec_bfd));
1910
1911 #define BFD_SEND(bfd, message, arglist) \
1912                ((*((bfd)->xvec->message)) arglist)
1913 #define BFD_SEND_FMT(bfd, message, arglist) \
1914             (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
1915 enum bfd_flavour {
1916   bfd_target_unknown_flavour,
1917   bfd_target_aout_flavour,
1918   bfd_target_coff_flavour,
1919   bfd_target_ecoff_flavour,
1920   bfd_target_elf_flavour,
1921   bfd_target_ieee_flavour,
1922   bfd_target_nlm_flavour,
1923   bfd_target_oasys_flavour,
1924   bfd_target_tekhex_flavour,
1925   bfd_target_srec_flavour,
1926   bfd_target_som_flavour};
1927
1928  /* Forward declaration.  */
1929 typedef struct bfd_link_info _bfd_link_info;
1930
1931 typedef struct bfd_target
1932 {
1933   char *name;
1934   enum bfd_flavour flavour;
1935   boolean byteorder_big_p;
1936   boolean header_byteorder_big_p;
1937   flagword object_flags;
1938   flagword section_flags;
1939   char symbol_leading_char;
1940   char ar_pad_char;
1941   unsigned short ar_max_namelen;
1942   unsigned int align_power_min;
1943   bfd_vma      (*bfd_getx64) PARAMS ((const bfd_byte *));
1944   bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *));
1945   void         (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
1946   bfd_vma      (*bfd_getx32) PARAMS ((const bfd_byte *));
1947   bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *));
1948   void         (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
1949   bfd_vma      (*bfd_getx16) PARAMS ((const bfd_byte *));
1950   bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *));
1951   void         (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
1952   bfd_vma      (*bfd_h_getx64) PARAMS ((const bfd_byte *));
1953   bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *));
1954   void         (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
1955   bfd_vma      (*bfd_h_getx32) PARAMS ((const bfd_byte *));
1956   bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *));
1957   void         (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
1958   bfd_vma      (*bfd_h_getx16) PARAMS ((const bfd_byte *));
1959   bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *));
1960   void         (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
1961   struct bfd_target * (*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
1962   boolean             (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
1963   boolean             (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
1964   char *   (*_core_file_failing_command) PARAMS ((bfd *));
1965   int      (*_core_file_failing_signal) PARAMS ((bfd *));
1966   boolean  (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
1967   boolean  (*_bfd_slurp_armap) PARAMS ((bfd *));
1968   boolean  (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
1969   void     (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
1970   boolean  (*write_armap) PARAMS ((bfd *arch,
1971                               unsigned int elength,
1972                               struct orl *map,
1973                               unsigned int orl_count,
1974                               int stridx));
1975   boolean       (*_close_and_cleanup) PARAMS ((bfd *));
1976   boolean       (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
1977                                             file_ptr, bfd_size_type));
1978   boolean       (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
1979                                             file_ptr, bfd_size_type));
1980   boolean       (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
1981   unsigned int  (*_get_symtab_upper_bound) PARAMS ((bfd *));
1982   unsigned int  (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
1983                                               struct symbol_cache_entry **));
1984   unsigned int  (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
1985   unsigned int  (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
1986                                               struct symbol_cache_entry **));
1987   struct symbol_cache_entry  *
1988                 (*_bfd_make_empty_symbol) PARAMS ((bfd *));
1989   void          (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
1990                                       struct symbol_cache_entry *,
1991                                       bfd_print_symbol_type));
1992 #define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
1993   void          (*_bfd_get_symbol_info) PARAMS ((bfd *,
1994                                       struct symbol_cache_entry *,
1995                                       symbol_info *));
1996 #define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
1997   alent *    (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
1998
1999   boolean    (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
2000                     unsigned long));
2001
2002   bfd *      (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
2003
2004   boolean    (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
2005                     struct sec *section, struct symbol_cache_entry **symbols,
2006                     bfd_vma offset, CONST char **file, CONST char **func,
2007                     unsigned int *line));
2008
2009   int        (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
2010
2011   int        (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
2012
2013   void       (*_bfd_debug_info_start) PARAMS ((bfd *));
2014   void       (*_bfd_debug_info_end) PARAMS ((bfd *));
2015   void       (*_bfd_debug_info_accumulate) PARAMS ((bfd *, struct sec *));
2016
2017   bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
2018                     struct bfd_link_info *, struct bfd_link_order *,
2019                     bfd_byte *data, boolean relocateable,
2020                     struct symbol_cache_entry **));
2021
2022   boolean    (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
2023                     struct bfd_link_info *, struct symbol_cache_entry **));
2024
2025   /* See documentation on reloc types.  */
2026  CONST struct reloc_howto_struct *
2027        (*reloc_type_lookup) PARAMS ((bfd *abfd,
2028                                      bfd_reloc_code_real_type code));
2029
2030   /* Back-door to allow format-aware applications to create debug symbols
2031     while using BFD for everything else.  Currently used by the assembler
2032     when creating COFF files.  */
2033  asymbol *  (*_bfd_make_debug_symbol) PARAMS ((
2034        bfd *abfd,
2035        void *ptr,
2036        unsigned long size));
2037
2038   /* Create a hash table for the linker.  Different backends store
2039     different information in this table.  */
2040  struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *));
2041
2042   /* Add symbols from this object file into the hash table.  */
2043  boolean (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
2044
2045   /* Do a link based on the link_order structures attached to each
2046     section of the BFD.  */
2047  boolean (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *));
2048
2049  PTR backend_data;
2050 } bfd_target;
2051 bfd_target *
2052 bfd_find_target PARAMS ((CONST char *target_name, bfd *abfd));
2053
2054 CONST char **
2055 bfd_target_list PARAMS ((void));
2056
2057 boolean
2058 bfd_check_format PARAMS ((bfd *abfd, bfd_format format));
2059
2060 boolean
2061 bfd_set_format PARAMS ((bfd *abfd, bfd_format format));
2062
2063 CONST char *
2064 bfd_format_string PARAMS ((bfd_format format));
2065
2066 #endif