include/bfd.h

   1 /* Main header file for the bfd library -- portable access to object files.
   2    ==> The bfd.h file is generated from bfd-in.h and various .c files; if you
   3    ==> change it, your changes will probably be lost.
   4    Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
   5    Contributed by Cygnus Support.
   6
   7 This file is part of BFD, the Binary File Descriptor library.
   8
   9 This program is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 2 of the License, or
  12 (at your option) any later version.
  13
  14 This program is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with this program; if not, write to the Free Software
  21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  22
  23 /* bfd.h -- The only header file required by users of the bfd library
  24
  25 The bfd.h file is generated from bfd-in.h and various .c files; if you
  26 change it, your changes will probably be lost.
  27
  28 All the prototypes and definitions following the comment "THE FOLLOWING
  29 IS EXTRACTED FROM THE SOURCE" are extracted from the source files for
  30 BFD.  If you change it, someone oneday will extract it from the source
  31 again, and your changes will be lost.  To save yourself from this bind,
  32 change the definitions in the source in the bfd directory.  Type "make
  33 docs" and then "make headers" in that directory, and magically this file
  34 will change to reflect your changes.
  35
  36 If you don't have the tools to perform the extraction, then you are
  37 safe from someone on your system trampling over your header files.
  38 You should still maintain the equivalence between the source and this
  39 file though; every change you make to the .c file should be reflected
  40 here.  */
  41
  42 #ifndef __BFD_H_SEEN__
  43 #define __BFD_H_SEEN__
  44
  45 #include "ansidecl.h"
  46 #include "obstack.h"
  47
  48 #define BFD_VERSION "2.0"
  49
  50 /* forward declaration */
  51 typedef struct _bfd bfd;
  52
  53 /* General rules: functions which are boolean return true on success
  54    and false on failure (unless they're a predicate).   -- bfd.doc */
  55 /* I'm sure this is going to break something and someone is going to
  56    force me to change it. */
  57 /* typedef enum boolean {false, true} boolean; */
  58 /* Yup, SVR4 has a "typedef enum boolean" in <sys/types.h>  -fnf */
  59 typedef enum bfd_boolean {false, true} boolean;
  60
  61 /* A pointer to a position in a file.  */
  62 /* FIXME:  This should be using off_t from <sys/types.h>.
  63    For now, try to avoid breaking stuff by not including <sys/types.h> here.
  64    This will break on systems with 64-bit file offsets (e.g. 4.4BSD).
  65    Probably the best long-term answer is to avoid using file_ptr AND off_t
  66    in this header file, and to handle this in the BFD implementation
  67    rather than in its interface.  */
  68 /* typedef off_t        file_ptr; */
  69 typedef long int file_ptr;
  70
  71 /* Support for different sizes of target format ints and addresses */
  72
  73 #ifdef  HOST_64_BIT
  74 typedef HOST_64_BIT rawdata_offset;
  75 typedef HOST_64_BIT bfd_vma;
  76 typedef HOST_64_BIT bfd_word;
  77 typedef HOST_64_BIT bfd_offset;
  78 typedef HOST_64_BIT bfd_size_type;
  79 typedef HOST_64_BIT symvalue;
  80 typedef HOST_64_BIT bfd_64_type;
  81 #define fprintf_vma(s,x) \
  82                 fprintf(s,"%08x%08x", uint64_typeHIGH(x), uint64_typeLOW(x))
  83 #else
  84 typedef struct {int a,b;} bfd_64_type;
  85 typedef unsigned long rawdata_offset;
  86 typedef unsigned long bfd_vma;
  87 typedef unsigned long bfd_offset;
  88 typedef unsigned long bfd_word;
  89 typedef unsigned long bfd_size;
  90 typedef unsigned long symvalue;
  91 typedef unsigned long bfd_size_type;
  92 #define fprintf_vma(s,x) fprintf(s, "%08lx", x)
  93 #endif
  94 #define printf_vma(x) fprintf_vma(stdout,x)
  95
  96 typedef unsigned int flagword;  /* 32 bits of flags */
  97 \f
  98 /** File formats */
  99
 100 typedef enum bfd_format {
 101               bfd_unknown = 0,  /* file format is unknown */
 102               bfd_object,       /* linker/assember/compiler output */
 103               bfd_archive,      /* object archive file */
 104               bfd_core,         /* core dump */
 105               bfd_type_end}     /* marks the end; don't use it! */
 106          bfd_format;
 107
 108 /* Object file flag values */
 109 #define NO_FLAGS        0x00
 110 #define HAS_RELOC       0x01
 111 #define EXEC_P          0x02
 112 #define HAS_LINENO      0x04
 113 #define HAS_DEBUG       0x08
 114 #define HAS_SYMS        0x10
 115 #define HAS_LOCALS      0x20
 116 #define DYNAMIC         0x40
 117 #define WP_TEXT         0x80
 118 #define D_PAGED         0x100
 119 #define BFD_IS_RELAXABLE 0x200
 120 \f
 121 /* symbols and relocation */
 122
 123 typedef unsigned long symindex;
 124
 125 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
 126
 127 typedef enum bfd_symclass {
 128               bfd_symclass_unknown = 0,
 129               bfd_symclass_fcommon, /* fortran common symbols */
 130               bfd_symclass_global, /* global symbol, what a surprise */
 131               bfd_symclass_debugger, /* some debugger symbol */
 132               bfd_symclass_undefined /* none known */
 133             } symclass;
 134
 135
 136 typedef int symtype;            /* Who knows, yet? */
 137
 138
 139 /* general purpose part of a symbol;
 140    target specific parts will be found in libcoff.h, liba.out.h etc */
 141
 142
 143 #define bfd_get_section(x) ((x)->section)
 144 #define bfd_get_output_section(x) ((x)->section->output_section)
 145 #define bfd_set_section(x,y) ((x)->section) = (y)
 146 #define bfd_asymbol_base(x) ((x)->section->vma)
 147 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
 148 #define bfd_asymbol_name(x) ((x)->name)
 149 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
 150 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
 151 #define bfd_asymbol_flavour(x) (bfd_asymbol_bfd(x)->xvec->flavour)
 152
 153 /* This is a type pun with struct ranlib on purpose! */
 154 typedef struct carsym {
 155   char *name;
 156   file_ptr file_offset;         /* look here to find the file */
 157 } carsym;                       /* to make these you call a carsymogen */
 158
 159
 160 /* Used in generating armaps.  Perhaps just a forward definition would do? */
 161 struct orl {                    /* output ranlib */
 162   char **name;                  /* symbol name */
 163   file_ptr pos;                 /* bfd* or file position */
 164   int namidx;                   /* index into string table */
 165 };
 166
 167 \f
 168
 169 /* Linenumber stuff */
 170 typedef struct lineno_cache_entry {
 171   unsigned int line_number;     /* Linenumber from start of function*/
 172   union {
 173  struct symbol_cache_entry *sym;                /* Function name */
 174     unsigned long offset;       /* Offset into section */
 175   } u;
 176 } alent;
 177 \f
 178 /* object and core file sections */
 179
 180
 181 #define align_power(addr, align)        \
 182         ( ((addr) + ((1<<(align))-1)) & (-1 << (align)))
 183
 184 typedef struct sec *sec_ptr;
 185
 186 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0)
 187 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0)
 188 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0)
 189 #define bfd_section_name(bfd, ptr) ((ptr)->name)
 190 #define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
 191 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
 192 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
 193 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
 194 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
 195
 196 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
 197
 198 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (val)), ((ptr)->user_set_vma = true), true)
 199 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),true)
 200 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),true)
 201
 202 typedef struct stat stat_type;
 203 \f
 204 /** Error handling */
 205
 206 typedef enum bfd_error {
 207               no_error = 0, system_call_error, invalid_target,
 208               wrong_format, invalid_operation, no_memory,
 209               no_symbols, no_relocation_info,
 210               no_more_archived_files, malformed_archive,
 211               symbol_not_found, file_not_recognized,
 212               file_ambiguously_recognized, no_contents,
 213               bfd_error_nonrepresentable_section,
 214               no_debug_section, bad_value,
 215               invalid_error_code} bfd_ec;
 216
 217 extern bfd_ec bfd_error;
 218 struct reloc_cache_entry;
 219 struct bfd_seclet;
 220
 221
 222 typedef struct bfd_error_vector {
 223   void (* nonrepresentable_section ) PARAMS ((CONST bfd  *CONST abfd,
 224                                               CONST char *CONST name));
 225   void (* undefined_symbol) PARAMS ((CONST struct reloc_cache_entry *rel,
 226                                      CONST struct bfd_seclet *sec));
 227   void (* reloc_value_truncated) PARAMS ((CONST struct
 228                                           reloc_cache_entry *rel,
 229                                           struct bfd_seclet *sec));
 230
 231   void (* reloc_dangerous) PARAMS ((CONST struct reloc_cache_entry *rel,
 232                                     CONST struct bfd_seclet *sec));
 233
 234 } bfd_error_vector_type;
 235
 236 CONST char *bfd_errmsg PARAMS ((bfd_ec error_tag));
 237 void bfd_perror PARAMS ((CONST char *message));
 238 \f
 239
 240 typedef enum bfd_print_symbol
 241 {
 242   bfd_print_symbol_name,
 243   bfd_print_symbol_more,
 244   bfd_print_symbol_all,
 245   bfd_print_symbol_nm   /* Pretty format suitable for nm program. */
 246 } bfd_print_symbol_type;
 247
 248 \f
 249 \f
 250 /* The code that implements targets can initialize a jump table with this
 251    macro.  It must name all its routines the same way (a prefix plus
 252    the standard routine suffix), or it must #define the routines that
 253    are not so named, before calling JUMP_TABLE in the initializer.  */
 254
 255 /* Semi-portable string concatenation in cpp */
 256 #ifndef CAT
 257 #ifdef __STDC__
 258 #define CAT(a,b) a##b
 259 #else
 260 #define CAT(a,b) a/**/b
 261 #endif
 262 #endif
 263
 264 #define JUMP_TABLE(NAME)\
 265 CAT(NAME,_core_file_failing_command),\
 266 CAT(NAME,_core_file_failing_signal),\
 267 CAT(NAME,_core_file_matches_executable_p),\
 268 CAT(NAME,_slurp_armap),\
 269 CAT(NAME,_slurp_extended_name_table),\
 270 CAT(NAME,_truncate_arname),\
 271 CAT(NAME,_write_armap),\
 272 CAT(NAME,_close_and_cleanup),   \
 273 CAT(NAME,_set_section_contents),\
 274 CAT(NAME,_get_section_contents),\
 275 CAT(NAME,_new_section_hook),\
 276 CAT(NAME,_get_symtab_upper_bound),\
 277 CAT(NAME,_get_symtab),\
 278 CAT(NAME,_get_reloc_upper_bound),\
 279 CAT(NAME,_canonicalize_reloc),\
 280 CAT(NAME,_make_empty_symbol),\
 281 CAT(NAME,_print_symbol),\
 282 CAT(NAME,_get_lineno),\
 283 CAT(NAME,_set_arch_mach),\
 284 CAT(NAME,_openr_next_archived_file),\
 285 CAT(NAME,_find_nearest_line),\
 286 CAT(NAME,_generic_stat_arch_elt),\
 287 CAT(NAME,_sizeof_headers),\
 288 CAT(NAME,_bfd_debug_info_start),\
 289 CAT(NAME,_bfd_debug_info_end),\
 290 CAT(NAME,_bfd_debug_info_accumulate),\
 291 CAT(NAME,_bfd_get_relocated_section_contents),\
 292 CAT(NAME,_bfd_relax_section),\
 293 CAT(NAME,_bfd_seclet_link)
 294
 295 #define COFF_SWAP_TABLE (PTR) &bfd_coff_std_swap_table
 296
 297 \f
 298 /* User program access to BFD facilities */
 299
 300 extern CONST short _bfd_host_big_endian;
 301 #define HOST_BYTE_ORDER_BIG_P   (*(char *)&_bfd_host_big_endian)
 302
 303 /* The bfd itself */
 304
 305 /* Cast from const char * to char * so that caller can assign to
 306    a char * without a warning.  */
 307 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
 308 #define bfd_get_format(abfd) ((abfd)->format)
 309 #define bfd_get_target(abfd) ((abfd)->xvec->name)
 310 #define bfd_get_file_flags(abfd) ((abfd)->flags)
 311 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
 312 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
 313 #define bfd_my_archive(abfd) ((abfd)->my_archive)
 314 #define bfd_has_map(abfd) ((abfd)->has_armap)
 315 #define bfd_header_twiddle_required(abfd) \
 316         ((((abfd)->xvec->header_byteorder_big_p)                \
 317           != (boolean)HOST_BYTE_ORDER_BIG_P) ? true:false)
 318
 319 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
 320 #define bfd_usrdata(abfd) ((abfd)->usrdata)
 321
 322 #define bfd_get_start_address(abfd) ((abfd)->start_address)
 323 #define bfd_get_symcount(abfd) ((abfd)->symcount)
 324 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
 325 #define bfd_count_sections(abfd) ((abfd)->section_count)
 326 #define bfd_get_architecture(abfd) ((abfd)->obj_arch)
 327 #define bfd_get_machine(abfd) ((abfd)->obj_machine)
 328
 329 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
 330
 331 #define BYTE_SIZE 1
 332 #define SHORT_SIZE 2
 333 #define LONG_SIZE 4
 334
 335 /* And more from the source.  */
 336 void
 337 bfd_init PARAMS ((void));
 338
 339 bfd *
 340 bfd_openr PARAMS ((CONST char *filename, CONST char*target));
 341
 342 bfd *
 343 bfd_fdopenr PARAMS ((CONST char *filename, CONST char *target, int fd));
 344
 345 bfd *
 346 bfd_openw PARAMS ((CONST char *filename, CONST char *target));
 347
 348 boolean
 349 bfd_close PARAMS ((bfd *));
 350
 351 boolean
 352 bfd_close_all_done PARAMS ((bfd *));
 353
 354 bfd_size_type
 355 bfd_alloc_size PARAMS ((bfd *abfd));
 356
 357 bfd *
 358 bfd_create PARAMS ((CONST char *filename, bfd *template));
 359
 360 #define bfd_put_8(abfd, val, ptr) \
 361                 (*((char *)ptr) = (char)val)
 362 #define bfd_get_8(abfd, ptr) \
 363                 (*((char *)ptr))
 364 #define bfd_put_16(abfd, val, ptr) \
 365                 BFD_SEND(abfd, bfd_putx16, (val,ptr))
 366 #define bfd_get_16(abfd, ptr) \
 367                 BFD_SEND(abfd, bfd_getx16, (ptr))
 368 #define bfd_put_32(abfd, val, ptr) \
 369                 BFD_SEND(abfd, bfd_putx32, (val,ptr))
 370 #define bfd_get_32(abfd, ptr) \
 371                 BFD_SEND(abfd, bfd_getx32, (ptr))
 372 #define bfd_put_64(abfd, val, ptr) \
 373                 BFD_SEND(abfd, bfd_putx64, (val, ptr))
 374 #define bfd_get_64(abfd, ptr) \
 375                 BFD_SEND(abfd, bfd_getx64, (ptr))
 376 #define bfd_h_put_8(abfd, val, ptr) \
 377                 (*((char *)ptr) = (char)val)
 378 #define bfd_h_get_8(abfd, ptr) \
 379                 (*((char *)ptr))
 380 #define bfd_h_put_16(abfd, val, ptr) \
 381                 BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
 382 #define bfd_h_get_16(abfd, ptr) \
 383                 BFD_SEND(abfd, bfd_h_getx16,(ptr))
 384 #define bfd_h_put_32(abfd, val, ptr) \
 385                 BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
 386 #define bfd_h_get_32(abfd, ptr) \
 387                 BFD_SEND(abfd, bfd_h_getx32,(ptr))
 388 #define bfd_h_put_64(abfd, val, ptr) \
 389                 BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
 390 #define bfd_h_get_64(abfd, ptr) \
 391                 BFD_SEND(abfd, bfd_h_getx64,(ptr))
 392 typedef struct sec
 393 {
 394          /* The name of the section, the name isn't a copy, the pointer is
 395         the same as that passed to bfd_make_section. */
 396
 397     CONST char *name;
 398
 399
 400          /* Which section is it 0.nth      */
 401
 402    int index;
 403
 404          /* The next section in the list belonging to the BFD, or NULL. */
 405
 406     struct sec *next;
 407
 408          /* The field flags contains attributes of the section. Some of
 409            flags are read in from the object file, and some are
 410            synthesized from other information.  */
 411
 412     flagword flags;
 413
 414 #define SEC_NO_FLAGS   0x000
 415
 416          /* Tells the OS to allocate space for this section when loaded.
 417            This would clear for a section containing debug information
 418            only. */
 419
 420
 421 #define SEC_ALLOC      0x001
 422          /* Tells the OS to load the section from the file when loading.
 423            This would be clear for a .bss section */
 424
 425 #define SEC_LOAD       0x002
 426          /* The section contains data still to be relocated, so there will
 427            be some relocation information too. */
 428
 429 #define SEC_RELOC      0x004
 430
 431          /* Obsolete ? */
 432
 433 #define SEC_BALIGN     0x008
 434
 435          /* A signal to the OS that the section contains read only
 436           data. */
 437 #define SEC_READONLY   0x010
 438
 439          /* The section contains code only. */
 440
 441 #define SEC_CODE       0x020
 442
 443          /* The section contains data only. */
 444
 445 #define SEC_DATA        0x040
 446
 447          /* The section will reside in ROM. */
 448
 449 #define SEC_ROM        0x080
 450
 451          /* The section contains constructor information. This section
 452            type is used by the linker to create lists of constructors and
 453            destructors used by <<g++>>. When a back end sees a symbol
 454            which should be used in a constructor list, it creates a new
 455            section for the type of name (eg <<__CTOR_LIST__>>), attaches
 456            the symbol to it and builds a relocation. To build the lists
 457            of constructors, all the linker has to to is catenate all the
 458            sections called <<__CTOR_LIST__>> and relocte the data
 459            contained within - exactly the operations it would peform on
 460            standard data. */
 461
 462 #define SEC_CONSTRUCTOR 0x100
 463
 464          /* The section is a constuctor, and should be placed at the
 465           end of the . */
 466
 467 #define SEC_CONSTRUCTOR_TEXT 0x1100
 468
 469 #define SEC_CONSTRUCTOR_DATA 0x2100
 470
 471 #define SEC_CONSTRUCTOR_BSS  0x3100
 472
 473          /* The section has contents - a data section could be
 474            <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>, a debug section could be
 475            <<SEC_HAS_CONTENTS>> */
 476
 477 #define SEC_HAS_CONTENTS 0x200
 478
 479          /* An instruction to the linker not to output sections
 480           containing this flag even if they have information which
 481           would normally be written. */
 482
 483 #define SEC_NEVER_LOAD 0x400
 484
 485          /* The section is a shared library section.  The linker must leave
 486            these completely alone, as the vma and size are used when
 487            the executable is loaded. */
 488
 489 #define SEC_SHARED_LIBRARY 0x800
 490
 491          /* The section is a common section (symbols may be defined
 492            multiple times, the value of a symbol is the amount of
 493            space it requires, and the largest symbol value is the one
 494            used).  Most targets have exactly one of these (.bss), but
 495            ECOFF has two. */
 496
 497 #define SEC_IS_COMMON 0x8000
 498
 499    bfd_vma vma;
 500    boolean user_set_vma;
 501
 502          /* The size of the section in bytes, as it will be output.
 503            contains a value even if the section has no contents (eg, the
 504            size of <<.bss>>). This will be filled in after relocation */
 505
 506    bfd_size_type _cooked_size;
 507
 508          /* The size on disk of the section in bytes originally.  Normally this
 509             value is the same as the size, but if some relaxing has
 510             been done, then this value will be bigger.  */
 511
 512    bfd_size_type _raw_size;
 513
 514          /* If this section is going to be output, then this value is the
 515            offset into the output section of the first byte in the input
 516            section. Eg, if this was going to start at the 100th byte in
 517            the output section, this value would be 100. */
 518
 519    bfd_vma output_offset;
 520
 521          /* The output section through which to map on output. */
 522
 523    struct sec *output_section;
 524
 525          /* The alignment requirement of the section, as an exponent - eg
 526            3 aligns to 2^3 (or 8) */
 527
 528    unsigned int alignment_power;
 529
 530          /* If an input section, a pointer to a vector of relocation
 531            records for the data in this section. */
 532
 533    struct reloc_cache_entry *relocation;
 534
 535          /* If an output section, a pointer to a vector of pointers to
 536            relocation records for the data in this section. */
 537
 538    struct reloc_cache_entry **orelocation;
 539
 540          /* The number of relocation records in one of the above  */
 541
 542    unsigned reloc_count;
 543
 544          /* Information below is back end specific - and not always used
 545            or updated
 546
 547            File position of section data    */
 548
 549    file_ptr filepos;
 550
 551          /* File position of relocation info */
 552
 553    file_ptr rel_filepos;
 554
 555          /* File position of line data       */
 556
 557    file_ptr line_filepos;
 558
 559          /* Pointer to data for applications */
 560
 561    PTR userdata;
 562
 563    struct lang_output_section *otheruserdata;
 564
 565          /* Attached line number information */
 566
 567    alent *lineno;
 568
 569          /* Number of line number records   */
 570
 571    unsigned int lineno_count;
 572
 573          /* When a section is being output, this value changes as more
 574            linenumbers are written out */
 575
 576    file_ptr moving_line_filepos;
 577
 578          /* what the section number is in the target world  */
 579
 580    int target_index;
 581
 582    PTR used_by_bfd;
 583
 584          /* If this is a constructor section then here is a list of the
 585            relocations created to relocate items within it. */
 586
 587    struct relent_chain *constructor_chain;
 588
 589          /* The BFD which owns the section. */
 590
 591    bfd *owner;
 592
 593    boolean reloc_done;
 594           /* A symbol which points at this section only */
 595    struct symbol_cache_entry *symbol;
 596    struct symbol_cache_entry **symbol_ptr_ptr;
 597    struct bfd_seclet *seclets_head;
 598    struct bfd_seclet *seclets_tail;
 599 } asection ;
 600
 601
 602 #define BFD_ABS_SECTION_NAME "*ABS*"
 603 #define BFD_UND_SECTION_NAME "*UND*"
 604 #define BFD_COM_SECTION_NAME "*COM*"
 605
 606      /* the absolute section */
 607  extern   asection bfd_abs_section;
 608      /* Pointer to the undefined section */
 609  extern   asection bfd_und_section;
 610      /* Pointer to the common section */
 611  extern asection bfd_com_section;
 612
 613  extern struct symbol_cache_entry *bfd_abs_symbol;
 614  extern struct symbol_cache_entry *bfd_com_symbol;
 615  extern struct symbol_cache_entry *bfd_und_symbol;
 616 #define bfd_get_section_size_before_reloc(section) \
 617      (section->reloc_done ? (abort(),1): (section)->_raw_size)
 618 #define bfd_get_section_size_after_reloc(section) \
 619      ((section->reloc_done) ? (section)->_cooked_size: (abort(),1))
 620 asection *
 621 bfd_get_section_by_name PARAMS ((bfd *abfd, CONST char *name));
 622
 623 asection *
 624 bfd_make_section_old_way PARAMS ((bfd *, CONST char *name));
 625
 626 asection *
 627 bfd_make_section PARAMS ((bfd *, CONST char *name));
 628
 629 boolean
 630 bfd_set_section_flags PARAMS ((bfd *, asection *, flagword));
 631
 632 void
 633 bfd_map_over_sections PARAMS ((bfd *abfd,
 634     void (*func)(bfd *abfd,
 635     asection *sect,
 636     PTR obj),
 637     PTR obj));
 638
 639 boolean
 640 bfd_set_section_size PARAMS ((bfd *, asection *, bfd_size_type val));
 641
 642 boolean
 643 bfd_set_section_contents
 644  PARAMS ((bfd *abfd,
 645     asection *section,
 646     PTR data,
 647     file_ptr offset,
 648     bfd_size_type count));
 649
 650 boolean
 651 bfd_get_section_contents
 652  PARAMS ((bfd *abfd, asection *section, PTR location,
 653     file_ptr offset, bfd_size_type count));
 654
 655 enum bfd_architecture
 656 {
 657   bfd_arch_unknown,    /* File arch not known */
 658   bfd_arch_obscure,    /* Arch known, not one of these */
 659   bfd_arch_m68k,       /* Motorola 68xxx */
 660   bfd_arch_vax,        /* DEC Vax */
 661   bfd_arch_i960,       /* Intel 960 */
 662      /* The order of the following is important.
 663        lower number indicates a machine type that
 664        only accepts a subset of the instructions
 665        available to machines with higher numbers.
 666        The exception is the "ca", which is
 667        incompatible with all other machines except
 668        "core". */
 669
 670 #define bfd_mach_i960_core      1
 671 #define bfd_mach_i960_ka_sa     2
 672 #define bfd_mach_i960_kb_sb     3
 673 #define bfd_mach_i960_mc        4
 674 #define bfd_mach_i960_xa        5
 675 #define bfd_mach_i960_ca        6
 676
 677   bfd_arch_a29k,       /* AMD 29000 */
 678   bfd_arch_sparc,      /* SPARC */
 679   bfd_arch_mips,       /* MIPS Rxxxx */
 680   bfd_arch_i386,       /* Intel 386 */
 681   bfd_arch_we32k,      /* AT&T WE32xxx */
 682   bfd_arch_tahoe,      /* CCI/Harris Tahoe */
 683   bfd_arch_i860,       /* Intel 860 */
 684   bfd_arch_romp,       /* IBM ROMP PC/RT */
 685   bfd_arch_alliant,    /* Alliant */
 686   bfd_arch_convex,     /* Convex */
 687   bfd_arch_m88k,       /* Motorola 88xxx */
 688   bfd_arch_pyramid,    /* Pyramid Technology */
 689   bfd_arch_h8300,      /* Hitachi H8/300 */
 690   bfd_arch_rs6000,     /* IBM RS/6000 */
 691   bfd_arch_hppa,       /* HP PA RISC */
 692   bfd_arch_z8k,        /* Zilog Z8000 */
 693 #define bfd_mach_z8001          1
 694 #define bfd_mach_z8002          2
 695   bfd_arch_h8500,      /* Hitachi H8/500 */
 696   bfd_arch_last
 697   };
 698
 699 typedef struct bfd_arch_info
 700 {
 701   int bits_per_word;
 702   int bits_per_address;
 703   int bits_per_byte;
 704   enum bfd_architecture arch;
 705   long mach;
 706   char *arch_name;
 707   CONST  char *printable_name;
 708   unsigned int section_align_power;
 709   /* true if this is the default machine for the architecture */
 710   boolean the_default;
 711   CONST struct bfd_arch_info * (*compatible)
 712         PARAMS ((CONST struct bfd_arch_info *a,
 713                  CONST struct bfd_arch_info *b));
 714
 715   boolean (*scan) PARAMS ((CONST struct bfd_arch_info *, CONST char *));
 716    /* How to disassemble an instruction, producing a printable
 717      representation on a specified stdio stream.  This isn't
 718      defined for most processors at present, because of the size
 719      of the additional tables it would drag in, and because gdb
 720      wants to use a different interface.  */
 721   unsigned int (*disassemble) PARAMS ((bfd_vma addr, CONST char *data,
 722                                         PTR stream));
 723
 724   struct bfd_arch_info *next;
 725 } bfd_arch_info_type;
 726 CONST char *
 727 bfd_printable_name PARAMS ((bfd *abfd));
 728
 729 bfd_arch_info_type *
 730 bfd_scan_arch PARAMS ((CONST char *));
 731
 732 CONST bfd_arch_info_type *
 733 bfd_arch_get_compatible PARAMS ((
 734     CONST bfd *abfd,
 735     CONST bfd *bbfd));
 736
 737 void
 738 bfd_set_arch_info PARAMS ((bfd *, bfd_arch_info_type *));
 739
 740 enum bfd_architecture
 741 bfd_get_arch PARAMS ((bfd *abfd));
 742
 743 unsigned long
 744 bfd_get_mach PARAMS ((bfd *abfd));
 745
 746 unsigned int
 747 bfd_arch_bits_per_byte PARAMS ((bfd *abfd));
 748
 749 unsigned int
 750 bfd_arch_bits_per_address PARAMS ((bfd *abfd));
 751
 752 bfd_arch_info_type *
 753 bfd_get_arch_info PARAMS ((bfd *));
 754
 755 bfd_arch_info_type *
 756 bfd_lookup_arch
 757  PARAMS ((enum bfd_architecture
 758     arch,
 759     long machine));
 760
 761 CONST char *
 762 bfd_printable_arch_mach
 763  PARAMS ((enum bfd_architecture arch, unsigned long machine));
 764
 765 typedef enum bfd_reloc_status
 766 {
 767         /* No errors detected */
 768   bfd_reloc_ok,
 769
 770         /* The relocation was performed, but there was an overflow. */
 771   bfd_reloc_overflow,
 772
 773         /* The address to relocate was not within the section supplied*/
 774   bfd_reloc_outofrange,
 775
 776         /* Used by special functions */
 777   bfd_reloc_continue,
 778
 779         /* Unused */
 780   bfd_reloc_notsupported,
 781
 782         /* Unsupported relocation size requested.  */
 783   bfd_reloc_other,
 784
 785         /* The symbol to relocate against was undefined.*/
 786   bfd_reloc_undefined,
 787
 788         /* The relocation was performed, but may not be ok - presently
 789           generated only when linking i960 coff files with i960 b.out
 790           symbols. */
 791   bfd_reloc_dangerous
 792  }
 793  bfd_reloc_status_type;
 794
 795
 796 typedef struct reloc_cache_entry
 797 {
 798         /* A pointer into the canonical table of pointers  */
 799   struct symbol_cache_entry **sym_ptr_ptr;
 800
 801         /* offset in section */
 802   rawdata_offset address;
 803
 804         /* addend for relocation value */
 805   bfd_vma addend;
 806
 807         /* Pointer to how to perform the required relocation */
 808   CONST struct reloc_howto_struct *howto;
 809
 810 } arelent;
 811
 812 typedef CONST struct reloc_howto_struct
 813 {
 814         /*  The type field has mainly a documetary use - the back end can
 815            to what it wants with it, though the normally the back end's
 816            external idea of what a reloc number would be would be stored
 817            in this field. For example, the a PC relative word relocation
 818            in a coff environment would have the type 023 - because that's
 819            what the outside world calls a R_PCRWORD reloc. */
 820   unsigned int type;
 821
 822         /*  The value the final relocation is shifted right by. This drops
 823            unwanted data from the relocation.  */
 824   unsigned int rightshift;
 825
 826         /*  The size of the item to be relocated - 0, is one byte, 1 is 2
 827            bytes, 2 is four bytes.  A negative value indicates that the
 828             result is to be subtracted from the data.  */
 829   int size;
 830
 831         /*  Now obsolete?  But m68k-coff still uses it... */
 832   unsigned int bitsize;
 833
 834         /*  Notes that the relocation is relative to the location in the
 835            data section of the addend. The relocation function will
 836            subtract from the relocation value the address of the location
 837            being relocated. */
 838   boolean pc_relative;
 839
 840   unsigned int bitpos;
 841
 842         /*  Now obsolete */
 843   boolean absolute;
 844
 845         /* Causes the relocation routine to return an error if overflow
 846           is detected when relocating. */
 847   boolean complain_on_overflow;
 848
 849         /* If this field is non null, then the supplied function is
 850           called rather than the normal function. This allows really
 851           strange relocation methods to be accomodated (e.g., i960 callj
 852           instructions). */
 853   bfd_reloc_status_type (*special_function)
 854                                     PARAMS ((bfd *abfd,
 855                                              arelent *reloc_entry,
 856                                             struct symbol_cache_entry *symbol,
 857                                             PTR data,
 858                                             asection *input_section,
 859                                             bfd *output_bfd));
 860
 861         /* The textual name of the relocation type. */
 862   char *name;
 863
 864         /* When performing a partial link, some formats must modify the
 865           relocations rather than the data - this flag signals this.*/
 866   boolean partial_inplace;
 867
 868         /* The src_mask is used to select what parts of the read in data
 869           are to be used in the relocation sum.  E.g., if this was an 8 bit
 870           bit of data which we read and relocated, this would be
 871           0x000000ff. When we have relocs which have an addend, such as
 872           sun4 extended relocs, the value in the offset part of a
 873           relocating field is garbage so we never use it. In this case
 874           the mask would be 0x00000000. */
 875   bfd_word src_mask;
 876
 877         /* The dst_mask is what parts of the instruction are replaced
 878           into the instruction. In most cases src_mask == dst_mask,
 879           except in the above special case, where dst_mask would be
 880           0x000000ff, and src_mask would be 0x00000000.   */
 881   bfd_word dst_mask;
 882
 883         /* When some formats create PC relative instructions, they leave
 884           the value of the pc of the place being relocated in the offset
 885           slot of the instruction, so that a PC relative relocation can
 886           be made just by adding in an ordinary offset (e.g., sun3 a.out).
 887           Some formats leave the displacement part of an instruction
 888           empty (e.g., m88k bcs), this flag signals the fact.*/
 889   boolean pcrel_offset;
 890
 891 } reloc_howto_type;
 892 #define HOWTO(C, R,S,B, P, BI, ABS, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
 893   {(unsigned)C,R,S,B, P, BI, ABS,O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC}
 894 #define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,false,false,FUNCTION, NAME,false,0,0,IN)
 895
 896 #define HOWTO_PREPARE(relocation, symbol)      \
 897   {                                            \
 898   if (symbol != (asymbol *)NULL) {             \
 899     if (bfd_is_com_section (symbol->section)) { \
 900       relocation = 0;                          \
 901     }                                          \
 902     else {                                     \
 903       relocation = symbol->value;              \
 904     }                                          \
 905   }                                            \
 906 }
 907 typedef unsigned char bfd_byte;
 908
 909 typedef struct relent_chain {
 910   arelent relent;
 911   struct   relent_chain *next;
 912 } arelent_chain;
 913 bfd_reloc_status_type
 914
 915 bfd_perform_relocation
 916  PARAMS ((bfd * abfd,
 917     arelent *reloc_entry,
 918     PTR data,
 919     asection *input_section,
 920     bfd *output_bfd));
 921
 922 typedef enum bfd_reloc_code_real
 923
 924 {
 925         /* 16 bits wide, simple reloc */
 926   BFD_RELOC_16,
 927
 928         /* 8 bits wide, but used to form an address like 0xffnn */
 929   BFD_RELOC_8_FFnn,
 930
 931         /* 8 bits wide, simple */
 932   BFD_RELOC_8,
 933
 934         /* 8 bits wide, pc relative */
 935   BFD_RELOC_8_PCREL,
 936
 937         /* The type of reloc used to build a contructor table - at the
 938           moment probably a 32 bit wide abs address, but the cpu can
 939           choose. */
 940
 941   BFD_RELOC_CTOR,
 942
 943         /* 32 bits wide, simple reloc */
 944   BFD_RELOC_32,
 945          /* 32 bits, PC-relative */
 946   BFD_RELOC_32_PCREL,
 947
 948          /* High 22 bits of 32-bit value; simple reloc.  */
 949   BFD_RELOC_HI22,
 950          /* Low 10 bits.  */
 951   BFD_RELOC_LO10,
 952
 953          /* Reloc types used for i960/b.out.  */
 954   BFD_RELOC_24_PCREL,
 955   BFD_RELOC_I960_CALLJ,
 956
 957   BFD_RELOC_16_PCREL,
 958          /* 32-bit pc-relative, shifted right 2 bits (i.e., 30-bit
 959            word displacement, e.g. for SPARC) */
 960   BFD_RELOC_32_PCREL_S2,
 961
 962    /* now for the sparc/elf codes */
 963   BFD_RELOC_NONE,                /* actually used */
 964   BFD_RELOC_SPARC_WDISP22,
 965   BFD_RELOC_SPARC22,
 966   BFD_RELOC_SPARC13,
 967   BFD_RELOC_SPARC_BASE13,
 968   BFD_RELOC_SPARC_GOT10,
 969   BFD_RELOC_SPARC_GOT13,
 970   BFD_RELOC_SPARC_GOT22,
 971   BFD_RELOC_SPARC_PC10,
 972   BFD_RELOC_SPARC_PC22,
 973   BFD_RELOC_SPARC_WPLT30,
 974   BFD_RELOC_SPARC_COPY,
 975   BFD_RELOC_SPARC_GLOB_DAT,
 976   BFD_RELOC_SPARC_JMP_SLOT,
 977   BFD_RELOC_SPARC_RELATIVE,
 978   BFD_RELOC_SPARC_UA32,
 979
 980    /* this one is a.out specific? */
 981   BFD_RELOC_SPARC_BASE22,
 982
 983         /* Bits 27..2 of the relocation address shifted right 2 bits;
 984          simple reloc otherwise.  */
 985   BFD_RELOC_MIPS_JMP,
 986
 987         /* signed 16-bit pc-relative, shifted right 2 bits (e.g. for MIPS) */
 988   BFD_RELOC_16_PCREL_S2,
 989
 990         /* High 16 bits of 32-bit value; simple reloc.  */
 991   BFD_RELOC_HI16,
 992         /* High 16 bits of 32-bit value but the low 16 bits will be sign
 993           extended and added to form the final result.  If the low 16
 994           bits form a negative number, we need to add one to the high value
 995           to compensate for the borrow when the low bits are added.  */
 996   BFD_RELOC_HI16_S,
 997         /* Low 16 bits.  */
 998   BFD_RELOC_LO16,
 999
1000    /* this must be the highest numeric value */
1001   BFD_RELOC_UNUSED
1002  } bfd_reloc_code_real_type;
1003 CONST struct reloc_howto_struct *
1004
1005 bfd_reloc_type_lookup  PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
1006
1007 typedef struct symbol_cache_entry
1008 {
1009          /* A pointer to the BFD which owns the symbol. This information
1010            is necessary so that a back end can work out what additional
1011            information (invisible to the application writer) is carried
1012            with the symbol.
1013
1014            This field is *almost* redundant, since you can use section->owner
1015            instead, except that some symbols point to the global sections
1016            bfd_{abs,com,und}_section.  This could be fixed by making
1017            these globals be per-bfd (or per-target-flavor).  FIXME. */
1018
1019   struct _bfd *the_bfd;  /* Use bfd_asymbol_bfd(sym) to access this field. */
1020
1021          /* The text of the symbol. The name is left alone, and not copied - the
1022            application may not alter it. */
1023   CONST char *name;
1024
1025          /* The value of the symbol.*/
1026   symvalue value;
1027
1028          /* Attributes of a symbol: */
1029
1030 #define BSF_NO_FLAGS    0x00
1031
1032          /* The symbol has local scope; <<static>> in <<C>>. The value
1033            is the offset into the section of the data. */
1034 #define BSF_LOCAL       0x01
1035
1036          /* The symbol has global scope; initialized data in <<C>>. The
1037            value is the offset into the section of the data. */
1038 #define BSF_GLOBAL      0x02
1039
1040          /* Obsolete; should be deleted? */
1041 #define BSF_IMPORT      0x04
1042
1043          /* The symbol has global scope, and is exported. The value is
1044            the offset into the section of the data. */
1045 #define BSF_EXPORT      0x08
1046
1047          /* The symbol is undefined. <<extern>> in <<C>>. The value has
1048            no meaning.  Obsolete; should be deleted? */
1049 #define BSF_UNDEFINED_OBS 0x10
1050
1051          /* The symbol is common, initialized to zero; default in
1052            <<C>>. The value is the size of the object in bytes. */
1053 #define BSF_FORT_COMM_OBS       0x20
1054
1055          /* A normal C symbol would be one of:
1056            <<BSF_LOCAL>>, <<BSF_FORT_COMM>>,  <<BSF_UNDEFINED>> or
1057            <<BSF_EXPORT|BSD_GLOBAL>> */
1058
1059          /* The symbol is a debugging record. The value has an arbitary
1060            meaning. */
1061 #define BSF_DEBUGGING   0x40
1062
1063          /* Used by the linker. */
1064 #define BSF_KEEP        0x10000
1065 #define BSF_KEEP_G      0x80000
1066
1067          /* Unused; should be deleted? */
1068 #define BSF_WEAK        0x100000
1069 #define BSF_CTOR        0x200000
1070
1071         /* This symbol was created to point to a section, e.g. ELF's
1072            STT_SECTION symbols.  */
1073 #define BSF_SECTION_SYM 0x400000
1074
1075          /* The symbol used to be a common symbol, but now it is
1076            allocated. */
1077 #define BSF_OLD_COMMON  0x800000
1078
1079          /* The default value for common data. */
1080 #define BFD_FORT_COMM_DEFAULT_VALUE 0
1081
1082          /* In some files the type of a symbol sometimes alters its
1083            location in an output file - ie in coff a <<ISFCN>> symbol
1084            which is also <<C_EXT>> symbol appears where it was
1085            declared and not at the end of a section.  This bit is set
1086            by the target BFD part to convey this information. */
1087
1088 #define BSF_NOT_AT_END    0x40000
1089
1090          /* Signal that the symbol is the label of constructor section. */
1091 #define BSF_CONSTRUCTOR   0x1000000
1092
1093          /* Signal that the symbol is a warning symbol. If the symbol
1094            is a warning symbol, then the value field (I know this is
1095            tacky) will point to the asymbol which when referenced will
1096            cause the warning. */
1097 #define BSF_WARNING       0x2000000
1098
1099          /* Signal that the symbol is indirect. The value of the symbol
1100            is a pointer to an undefined asymbol which contains the
1101            name to use instead. */
1102 #define BSF_INDIRECT      0x4000000
1103
1104          /* BSF_FILE marks symbols that contain a file name.  This is used
1105            for ELF STT_FILE symbols.  */
1106 #define BSF_FILE          0x08000000
1107
1108   flagword flags;
1109
1110          /* A pointer to the section to which this symbol is
1111            relative.  This will always be non NULL, there are special
1112           sections for undefined and absolute symbols */
1113   struct sec *section;
1114
1115          /* Back end special data. This is being phased out in favour
1116            of making this a union. */
1117   PTR udata;
1118
1119 } asymbol;
1120 #define get_symtab_upper_bound(abfd) \
1121      BFD_SEND (abfd, _get_symtab_upper_bound, (abfd))
1122 #define bfd_canonicalize_symtab(abfd, location) \
1123      BFD_SEND (abfd, _bfd_canonicalize_symtab,\
1124                   (abfd, location))
1125 boolean
1126 bfd_set_symtab  PARAMS ((bfd *, asymbol **, unsigned int ));
1127
1128 void
1129 bfd_print_symbol_vandf PARAMS ((PTR file, asymbol *symbol));
1130
1131 #define bfd_make_empty_symbol(abfd) \
1132      BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
1133 #define bfd_make_debug_symbol(abfd,ptr,size) \
1134         BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
1135 int
1136 bfd_decode_symclass PARAMS ((asymbol *symbol));
1137
1138 struct _bfd
1139 {
1140      /* The filename the application opened the BFD with.  */
1141     CONST char *filename;
1142
1143      /* A pointer to the target jump table.             */
1144     struct bfd_target *xvec;
1145
1146      /* To avoid dragging too many header files into every file that
1147        includes `<<bfd.h>>', IOSTREAM has been declared as a "char
1148        *", and MTIME as a "long".  Their correct types, to which they
1149        are cast when used, are "FILE *" and "time_t".    The iostream
1150        is the result of an fopen on the filename. */
1151     char *iostream;
1152
1153      /* Is the file being cached */
1154
1155     boolean cacheable;
1156
1157      /* Marks whether there was a default target specified when the
1158        BFD was opened. This is used to select what matching algorithm
1159        to use to chose the back end. */
1160
1161     boolean target_defaulted;
1162
1163      /* The caching routines use these to maintain a
1164        least-recently-used list of BFDs */
1165
1166     struct _bfd *lru_prev, *lru_next;
1167
1168      /* When a file is closed by the caching routines, BFD retains
1169        state information on the file here:
1170      */
1171
1172     file_ptr where;
1173
1174      /* and here:*/
1175
1176     boolean opened_once;
1177
1178      /* Set if we have a locally maintained mtime value, rather than
1179        getting it from the file each time: */
1180
1181     boolean mtime_set;
1182
1183      /* File modified time, if mtime_set is true: */
1184
1185     long mtime;
1186
1187      /* Reserved for an unimplemented file locking extension.*/
1188
1189     int ifd;
1190
1191      /* The format which belongs to the BFD.*/
1192
1193     bfd_format format;
1194
1195      /* The direction the BFD was opened with*/
1196
1197     enum bfd_direction {no_direction = 0,
1198                         read_direction = 1,
1199                         write_direction = 2,
1200                         both_direction = 3} direction;
1201
1202      /* Format_specific flags*/
1203
1204     flagword flags;
1205
1206      /* Currently my_archive is tested before adding origin to
1207        anything. I believe that this can become always an add of
1208        origin, with origin set to 0 for non archive files.   */
1209
1210     file_ptr origin;
1211
1212      /* Remember when output has begun, to stop strange things
1213        happening. */
1214     boolean output_has_begun;
1215
1216      /* Pointer to linked list of sections*/
1217     struct sec  *sections;
1218
1219      /* The number of sections */
1220     unsigned int section_count;
1221
1222      /* Stuff only useful for object files:
1223        The start address. */
1224     bfd_vma start_address;
1225
1226      /* Used for input and output*/
1227     unsigned int symcount;
1228
1229      /* Symbol table for output BFD*/
1230     struct symbol_cache_entry  **outsymbols;
1231
1232      /* Pointer to structure which contains architecture information*/
1233     struct bfd_arch_info *arch_info;
1234
1235      /* Stuff only useful for archives:*/
1236     PTR arelt_data;
1237     struct _bfd *my_archive;
1238     struct _bfd *next;
1239     struct _bfd *archive_head;
1240     boolean has_armap;
1241
1242      /* Used by the back end to hold private data. */
1243
1244     union
1245       {
1246       struct aout_data_struct *aout_data;
1247       struct artdata *aout_ar_data;
1248       struct _oasys_data *oasys_obj_data;
1249       struct _oasys_ar_data *oasys_ar_data;
1250       struct coff_tdata *coff_obj_data;
1251       struct ecoff_tdata *ecoff_obj_data;
1252       struct ieee_data_struct *ieee_data;
1253       struct ieee_ar_data_struct *ieee_ar_data;
1254       struct srec_data_struct *srec_data;
1255       struct tekhex_data_struct *tekhex_data;
1256       struct elf_obj_tdata *elf_obj_data;
1257       struct bout_data_struct *bout_data;
1258       struct sun_core_struct *sun_core_data;
1259       struct trad_core_struct *trad_core_data;
1260       struct hppa_data_struct *hppa_data;
1261       struct hppa_core_struct *hppa_core_data;
1262       PTR any;
1263       } tdata;
1264
1265      /* Used by the application to hold private data*/
1266     PTR usrdata;
1267
1268      /* Where all the allocated stuff under this BFD goes */
1269     struct obstack memory;
1270
1271      /* Is this really needed in addition to usrdata?  */
1272     asymbol **ld_symbols;
1273 };
1274
1275 unsigned int
1276 bfd_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
1277
1278 unsigned int
1279 bfd_canonicalize_reloc
1280  PARAMS ((bfd *abfd,
1281     asection *sec,
1282     arelent **loc,
1283     asymbol     **syms));
1284
1285 boolean
1286 bfd_set_file_flags PARAMS ((bfd *abfd, flagword flags));
1287
1288 void
1289 bfd_set_reloc
1290  PARAMS ((bfd *abfd, asection *sec, arelent **rel, unsigned int count)
1291
1292     );
1293
1294 boolean
1295 bfd_set_start_address PARAMS ((bfd *, bfd_vma));
1296
1297 long
1298 bfd_get_mtime PARAMS ((bfd *));
1299
1300 long
1301 bfd_get_size PARAMS ((bfd *));
1302
1303 #define bfd_sizeof_headers(abfd, reloc) \
1304      BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
1305
1306 #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
1307      BFD_SEND (abfd, _bfd_find_nearest_line,  (abfd, sec, syms, off, file, func, line))
1308
1309         /* Do these three do anything useful at all, for any back end?  */
1310 #define bfd_debug_info_start(abfd) \
1311         BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
1312
1313 #define bfd_debug_info_end(abfd) \
1314         BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
1315
1316 #define bfd_debug_info_accumulate(abfd, section) \
1317         BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
1318
1319
1320 #define bfd_stat_arch_elt(abfd, stat) \
1321         BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
1322
1323 #define bfd_set_arch_mach(abfd, arch, mach)\
1324         BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
1325
1326 #define bfd_get_relocated_section_contents(abfd, seclet, data, relocateable) \
1327         BFD_SEND (abfd, _bfd_get_relocated_section_contents, (abfd, seclet, data, relocateable))
1328
1329 #define bfd_relax_section(abfd, section, symbols) \
1330        BFD_SEND (abfd, _bfd_relax_section, (abfd, section, symbols))
1331
1332 #define bfd_seclet_link(abfd, data, relocateable) \
1333        BFD_SEND (abfd, _bfd_seclet_link, (abfd, data, relocateable))
1334 symindex
1335 bfd_get_next_mapent PARAMS ((bfd *, symindex previous, carsym ** sym));
1336
1337 boolean
1338 bfd_set_archive_head PARAMS ((bfd *output, bfd *new_head));
1339
1340 bfd *
1341 bfd_get_elt_at_index PARAMS ((bfd * archive, int index));
1342
1343 bfd*
1344 bfd_openr_next_archived_file PARAMS ((bfd *archive, bfd *previous));
1345
1346 CONST char *
1347 bfd_core_file_failing_command PARAMS ((bfd *));
1348
1349 int
1350 bfd_core_file_failing_signal PARAMS ((bfd *));
1351
1352 boolean
1353 core_file_matches_executable_p
1354  PARAMS ((bfd *core_bfd, bfd *exec_bfd));
1355
1356 #define BFD_SEND(bfd, message, arglist) \
1357                ((*((bfd)->xvec->message)) arglist)
1358 #define BFD_SEND_FMT(bfd, message, arglist) \
1359             (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
1360 typedef struct bfd_target
1361 {
1362   char *name;
1363   enum target_flavour {
1364     bfd_target_unknown_flavour,
1365     bfd_target_aout_flavour,
1366     bfd_target_coff_flavour,
1367     bfd_target_ecoff_flavour,
1368     bfd_target_elf_flavour,
1369     bfd_target_ieee_flavour,
1370     bfd_target_oasys_flavour,
1371     bfd_target_tekhex_flavour,
1372     bfd_target_srec_flavour,
1373     bfd_target_hppa_flavour} flavour;
1374   boolean byteorder_big_p;
1375   boolean header_byteorder_big_p;
1376   flagword object_flags;
1377   flagword section_flags;
1378   char symbol_leading_char;
1379   char ar_pad_char;
1380   unsigned short ar_max_namelen;
1381   unsigned int align_power_min;
1382   bfd_vma      (*bfd_getx64) PARAMS ((bfd_byte *));
1383   void         (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
1384   bfd_vma      (*bfd_getx32) PARAMS ((bfd_byte *));
1385   void         (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
1386   bfd_vma      (*bfd_getx16) PARAMS ((bfd_byte *));
1387   void         (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
1388   bfd_vma      (*bfd_h_getx64) PARAMS ((bfd_byte *));
1389   void         (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
1390   bfd_vma      (*bfd_h_getx32) PARAMS ((bfd_byte *));
1391   void         (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
1392   bfd_vma      (*bfd_h_getx16) PARAMS ((bfd_byte *));
1393   void         (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
1394   struct bfd_target * (*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
1395   boolean             (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
1396   boolean             (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
1397   char *   (*_core_file_failing_command) PARAMS ((bfd *));
1398   int      (*_core_file_failing_signal) PARAMS ((bfd *));
1399   boolean  (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
1400   boolean  (*_bfd_slurp_armap) PARAMS ((bfd *));
1401   boolean  (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
1402   void     (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
1403   boolean  (*write_armap) PARAMS ((bfd *arch,
1404                               unsigned int elength,
1405                               struct orl *map,
1406                               unsigned int orl_count,
1407                               int stridx));
1408   boolean       (*_close_and_cleanup) PARAMS ((bfd *));
1409   boolean       (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
1410                                             file_ptr, bfd_size_type));
1411   boolean       (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
1412                                             file_ptr, bfd_size_type));
1413   boolean       (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
1414   unsigned int  (*_get_symtab_upper_bound) PARAMS ((bfd *));
1415   unsigned int  (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
1416                                               struct symbol_cache_entry **));
1417   unsigned int  (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
1418   unsigned int  (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
1419                                               struct symbol_cache_entry **));
1420   struct symbol_cache_entry  *
1421                 (*_bfd_make_empty_symbol) PARAMS ((bfd *));
1422   void          (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
1423                                       struct symbol_cache_entry *,
1424                                       bfd_print_symbol_type));
1425 #define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
1426   alent *    (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
1427
1428   boolean    (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
1429                     unsigned long));
1430
1431   bfd *      (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
1432
1433   boolean    (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
1434                     struct sec *section, struct symbol_cache_entry **symbols,
1435                     bfd_vma offset, CONST char **file, CONST char **func,
1436                     unsigned int *line));
1437
1438   int        (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
1439
1440   int        (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
1441
1442   void       (*_bfd_debug_info_start) PARAMS ((bfd *));
1443   void       (*_bfd_debug_info_end) PARAMS ((bfd *));
1444   void       (*_bfd_debug_info_accumulate) PARAMS ((bfd *, struct sec *));
1445
1446   bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
1447                     struct bfd_seclet *, bfd_byte *data,
1448                     boolean relocateable));
1449
1450   boolean    (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
1451                     struct symbol_cache_entry **));
1452
1453   boolean    (*_bfd_seclet_link) PARAMS ((bfd *, PTR data,
1454                      boolean relocateable));
1455   /* See documentation on reloc types.  */
1456  CONST struct reloc_howto_struct *
1457        (*reloc_type_lookup) PARAMS ((bfd *abfd,
1458                                      bfd_reloc_code_real_type code));
1459
1460   /* Back-door to allow format-aware applications to create debug symbols
1461     while using BFD for everything else.  Currently used by the assembler
1462     when creating COFF files.  */
1463  asymbol *  (*_bfd_make_debug_symbol) PARAMS ((
1464        bfd *abfd,
1465        void *ptr,
1466        unsigned long size));
1467  PTR backend_data;
1468 } bfd_target;
1469 bfd_target *
1470 bfd_find_target PARAMS ((CONST char *, bfd *));
1471
1472 CONST char **
1473 bfd_target_list PARAMS ((void));
1474
1475 boolean
1476 bfd_check_format PARAMS ((bfd *abfd, bfd_format format));
1477
1478 boolean
1479 bfd_set_format PARAMS ((bfd *, bfd_format));
1480
1481 CONST char *
1482 bfd_format_string PARAMS ((bfd_format));
1483
1484 #endif