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