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, 1993 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 "2.1"
  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 = (ptr)->lma= (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 CAT(NAME,_bfd_reloc_type_lookup),\
 295 CAT(NAME,_bfd_make_debug_symbol)
 296
 297 #define COFF_SWAP_TABLE (PTR) &bfd_coff_std_swap_table
 298
 299 \f
 300 /* User program access to BFD facilities */
 301
 302 extern CONST short _bfd_host_big_endian;
 303 #define HOST_BYTE_ORDER_BIG_P   (*(char *)&_bfd_host_big_endian)
 304
 305 /* The bfd itself */
 306
 307 /* Cast from const char * to char * so that caller can assign to
 308    a char * without a warning.  */
 309 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
 310 #define bfd_get_format(abfd) ((abfd)->format)
 311 #define bfd_get_target(abfd) ((abfd)->xvec->name)
 312 #define bfd_get_file_flags(abfd) ((abfd)->flags)
 313 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
 314 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
 315 #define bfd_my_archive(abfd) ((abfd)->my_archive)
 316 #define bfd_has_map(abfd) ((abfd)->has_armap)
 317 #define bfd_header_twiddle_required(abfd) \
 318         ((((abfd)->xvec->header_byteorder_big_p)                \
 319           != (boolean)HOST_BYTE_ORDER_BIG_P) ? true:false)
 320
 321 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
 322 #define bfd_usrdata(abfd) ((abfd)->usrdata)
 323
 324 #define bfd_get_start_address(abfd) ((abfd)->start_address)
 325 #define bfd_get_symcount(abfd) ((abfd)->symcount)
 326 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
 327 #define bfd_count_sections(abfd) ((abfd)->section_count)
 328 #define bfd_get_architecture(abfd) ((abfd)->obj_arch)
 329 #define bfd_get_machine(abfd) ((abfd)->obj_machine)
 330
 331 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
 332
 333 #define BYTE_SIZE 1
 334 #define SHORT_SIZE 2
 335 #define LONG_SIZE 4
 336
 337 /* And more from the source.  */
 338 void
 339 bfd_init PARAMS ((void));
 340
 341 bfd *
 342 bfd_openr PARAMS ((CONST char *filename, CONST char*target));
 343
 344 bfd *
 345 bfd_fdopenr PARAMS ((CONST char *filename, CONST char *target, int fd));
 346
 347 bfd *
 348 bfd_openw PARAMS ((CONST char *filename, CONST char *target));
 349
 350 boolean
 351 bfd_close PARAMS ((bfd *));
 352
 353 boolean
 354 bfd_close_all_done PARAMS ((bfd *));
 355
 356 bfd_size_type
 357 bfd_alloc_size PARAMS ((bfd *abfd));
 358
 359 bfd *
 360 bfd_create PARAMS ((CONST char *filename, bfd *template));
 361
 362 #define bfd_put_8(abfd, val, ptr) \
 363                 (*((char *)ptr) = (char)val)
 364 #define bfd_get_8(abfd, ptr) \
 365                 (*((char *)ptr))
 366 #define bfd_put_16(abfd, val, ptr) \
 367                 BFD_SEND(abfd, bfd_putx16, (val,ptr))
 368 #define bfd_get_16(abfd, ptr) \
 369                 BFD_SEND(abfd, bfd_getx16, (ptr))
 370 #define bfd_put_32(abfd, val, ptr) \
 371                 BFD_SEND(abfd, bfd_putx32, (val,ptr))
 372 #define bfd_get_32(abfd, ptr) \
 373                 BFD_SEND(abfd, bfd_getx32, (ptr))
 374 #define bfd_put_64(abfd, val, ptr) \
 375                 BFD_SEND(abfd, bfd_putx64, (val, ptr))
 376 #define bfd_get_64(abfd, ptr) \
 377                 BFD_SEND(abfd, bfd_getx64, (ptr))
 378 #define bfd_h_put_8(abfd, val, ptr) \
 379                 (*((char *)ptr) = (char)val)
 380 #define bfd_h_get_8(abfd, ptr) \
 381                 (*((char *)ptr))
 382 #define bfd_h_put_16(abfd, val, ptr) \
 383                 BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
 384 #define bfd_h_get_16(abfd, ptr) \
 385                 BFD_SEND(abfd, bfd_h_getx16,(ptr))
 386 #define bfd_h_put_32(abfd, val, ptr) \
 387                 BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
 388 #define bfd_h_get_32(abfd, ptr) \
 389                 BFD_SEND(abfd, bfd_h_getx32,(ptr))
 390 #define bfd_h_put_64(abfd, val, ptr) \
 391                 BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
 392 #define bfd_h_get_64(abfd, ptr) \
 393                 BFD_SEND(abfd, bfd_h_getx64,(ptr))
 394 typedef struct sec
 395 {
 396          /* The name of the section, the name isn't a copy, the pointer is
 397         the same as that passed to bfd_make_section. */
 398
 399     CONST char *name;
 400
 401
 402          /* Which section is it 0.nth      */
 403
 404    int index;
 405
 406          /* The next section in the list belonging to the BFD, or NULL. */
 407
 408     struct sec *next;
 409
 410          /* The field flags contains attributes of the section. Some of
 411            flags are read in from the object file, and some are
 412            synthesized from other information.  */
 413
 414     flagword flags;
 415
 416 #define SEC_NO_FLAGS   0x000
 417
 418          /* Tells the OS to allocate space for this section when loaded.
 419            This would clear for a section containing debug information
 420            only. */
 421
 422
 423 #define SEC_ALLOC      0x001
 424          /* Tells the OS to load the section from the file when loading.
 425            This would be clear for a .bss section */
 426
 427 #define SEC_LOAD       0x002
 428          /* The section contains data still to be relocated, so there will
 429            be some relocation information too. */
 430
 431 #define SEC_RELOC      0x004
 432
 433          /* Obsolete ? */
 434
 435 #define SEC_BALIGN     0x008
 436
 437          /* A signal to the OS that the section contains read only
 438           data. */
 439 #define SEC_READONLY   0x010
 440
 441          /* The section contains code only. */
 442
 443 #define SEC_CODE       0x020
 444
 445          /* The section contains data only. */
 446
 447 #define SEC_DATA        0x040
 448
 449          /* The section will reside in ROM. */
 450
 451 #define SEC_ROM        0x080
 452
 453          /* The section contains constructor information. This section
 454            type is used by the linker to create lists of constructors and
 455            destructors used by <<g++>>. When a back end sees a symbol
 456            which should be used in a constructor list, it creates a new
 457            section for the type of name (eg <<__CTOR_LIST__>>), attaches
 458            the symbol to it and builds a relocation. To build the lists
 459            of constructors, all the linker has to to is catenate all the
 460            sections called <<__CTOR_LIST__>> and relocte the data
 461            contained within - exactly the operations it would peform on
 462            standard data. */
 463
 464 #define SEC_CONSTRUCTOR 0x100
 465
 466          /* The section is a constuctor, and should be placed at the
 467           end of the . */
 468
 469 #define SEC_CONSTRUCTOR_TEXT 0x1100
 470
 471 #define SEC_CONSTRUCTOR_DATA 0x2100
 472
 473 #define SEC_CONSTRUCTOR_BSS  0x3100
 474
 475          /* The section has contents - a data section could be
 476            <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>, a debug section could be
 477            <<SEC_HAS_CONTENTS>> */
 478
 479 #define SEC_HAS_CONTENTS 0x200
 480
 481          /* An instruction to the linker not to output sections
 482           containing this flag even if they have information which
 483           would normally be written. */
 484
 485 #define SEC_NEVER_LOAD 0x400
 486
 487          /* The section is a shared library section.  The linker must leave
 488            these completely alone, as the vma and size are used when
 489            the executable is loaded. */
 490
 491 #define SEC_SHARED_LIBRARY 0x800
 492
 493          /* The section is a common section (symbols may be defined
 494            multiple times, the value of a symbol is the amount of
 495            space it requires, and the largest symbol value is the one
 496            used).  Most targets have exactly one of these (.bss), but
 497            ECOFF has two. */
 498
 499 #define SEC_IS_COMMON 0x8000
 500
 501         /*  The virtual memory address of the section - where it will be
 502            at run time - the symbols are relocated against this */
 503    bfd_vma vma;
 504
 505         /*  The load address of the section - where it would be in a
 506            rom image, really only used for writing section header information */
 507    bfd_vma lma;
 508
 509    boolean user_set_vma;
 510
 511          /* The size of the section in bytes, as it will be output.
 512            contains a value even if the section has no contents (eg, the
 513            size of <<.bss>>). This will be filled in after relocation */
 514
 515    bfd_size_type _cooked_size;
 516
 517          /* The size on disk of the section in bytes originally.  Normally this
 518             value is the same as the size, but if some relaxing has
 519             been done, then this value will be bigger.  */
 520
 521    bfd_size_type _raw_size;
 522
 523          /* If this section is going to be output, then this value is the
 524            offset into the output section of the first byte in the input
 525            section. Eg, if this was going to start at the 100th byte in
 526            the output section, this value would be 100. */
 527
 528    bfd_vma output_offset;
 529
 530          /* The output section through which to map on output. */
 531
 532    struct sec *output_section;
 533
 534          /* The alignment requirement of the section, as an exponent - eg
 535            3 aligns to 2^3 (or 8) */
 536
 537    unsigned int alignment_power;
 538
 539          /* If an input section, a pointer to a vector of relocation
 540            records for the data in this section. */
 541
 542    struct reloc_cache_entry *relocation;
 543
 544          /* If an output section, a pointer to a vector of pointers to
 545            relocation records for the data in this section. */
 546
 547    struct reloc_cache_entry **orelocation;
 548
 549          /* The number of relocation records in one of the above  */
 550
 551    unsigned reloc_count;
 552
 553          /* Information below is back end specific - and not always used
 554            or updated
 555
 556            File position of section data    */
 557
 558    file_ptr filepos;
 559
 560          /* File position of relocation info */
 561
 562    file_ptr rel_filepos;
 563
 564          /* File position of line data       */
 565
 566    file_ptr line_filepos;
 567
 568          /* Pointer to data for applications */
 569
 570    PTR userdata;
 571
 572    struct lang_output_section *otheruserdata;
 573
 574          /* Attached line number information */
 575
 576    alent *lineno;
 577
 578          /* Number of line number records   */
 579
 580    unsigned int lineno_count;
 581
 582          /* When a section is being output, this value changes as more
 583            linenumbers are written out */
 584
 585    file_ptr moving_line_filepos;
 586
 587          /* what the section number is in the target world  */
 588
 589    int target_index;
 590
 591    PTR used_by_bfd;
 592
 593          /* If this is a constructor section then here is a list of the
 594            relocations created to relocate items within it. */
 595
 596    struct relent_chain *constructor_chain;
 597
 598          /* The BFD which owns the section. */
 599
 600    bfd *owner;
 601
 602    boolean reloc_done;
 603           /* A symbol which points at this section only */
 604    struct symbol_cache_entry *symbol;
 605    struct symbol_cache_entry **symbol_ptr_ptr;
 606    struct bfd_seclet *seclets_head;
 607    struct bfd_seclet *seclets_tail;
 608 } asection ;
 609
 610
 611 #define BFD_ABS_SECTION_NAME "*ABS*"
 612 #define BFD_UND_SECTION_NAME "*UND*"
 613 #define BFD_COM_SECTION_NAME "*COM*"
 614 #define BFD_IND_SECTION_NAME "*IND*"
 615
 616      /* the absolute section */
 617  extern   asection bfd_abs_section;
 618      /* Pointer to the undefined section */
 619  extern   asection bfd_und_section;
 620      /* Pointer to the common section */
 621  extern asection bfd_com_section;
 622      /* Pointer to the indirect section */
 623  extern asection bfd_ind_section;
 624
 625  extern struct symbol_cache_entry *bfd_abs_symbol;
 626  extern struct symbol_cache_entry *bfd_com_symbol;
 627  extern struct symbol_cache_entry *bfd_und_symbol;
 628  extern struct symbol_cache_entry *bfd_ind_symbol;
 629 #define bfd_get_section_size_before_reloc(section) \
 630      (section->reloc_done ? (abort(),1): (section)->_raw_size)
 631 #define bfd_get_section_size_after_reloc(section) \
 632      ((section->reloc_done) ? (section)->_cooked_size: (abort(),1))
 633 asection *
 634 bfd_get_section_by_name PARAMS ((bfd *abfd, CONST char *name));
 635
 636 asection *
 637 bfd_make_section_old_way PARAMS ((bfd *, CONST char *name));
 638
 639 asection *
 640 bfd_make_section PARAMS ((bfd *, CONST char *name));
 641
 642 boolean
 643 bfd_set_section_flags PARAMS ((bfd *, asection *, flagword));
 644
 645 void
 646 bfd_map_over_sections PARAMS ((bfd *abfd,
 647     void (*func)(bfd *abfd,
 648     asection *sect,
 649     PTR obj),
 650     PTR obj));
 651
 652 boolean
 653 bfd_set_section_size PARAMS ((bfd *, asection *, bfd_size_type val));
 654
 655 boolean
 656 bfd_set_section_contents
 657  PARAMS ((bfd *abfd,
 658     asection *section,
 659     PTR data,
 660     file_ptr offset,
 661     bfd_size_type count));
 662
 663 boolean
 664 bfd_get_section_contents
 665  PARAMS ((bfd *abfd, asection *section, PTR location,
 666     file_ptr offset, bfd_size_type count));
 667
 668 enum bfd_architecture
 669 {
 670   bfd_arch_unknown,    /* File arch not known */
 671   bfd_arch_obscure,    /* Arch known, not one of these */
 672   bfd_arch_m68k,       /* Motorola 68xxx */
 673   bfd_arch_vax,        /* DEC Vax */
 674   bfd_arch_i960,       /* Intel 960 */
 675      /* The order of the following is important.
 676        lower number indicates a machine type that
 677        only accepts a subset of the instructions
 678        available to machines with higher numbers.
 679        The exception is the "ca", which is
 680        incompatible with all other machines except
 681        "core". */
 682
 683 #define bfd_mach_i960_core      1
 684 #define bfd_mach_i960_ka_sa     2
 685 #define bfd_mach_i960_kb_sb     3
 686 #define bfd_mach_i960_mc        4
 687 #define bfd_mach_i960_xa        5
 688 #define bfd_mach_i960_ca        6
 689
 690   bfd_arch_a29k,       /* AMD 29000 */
 691   bfd_arch_sparc,      /* SPARC */
 692   bfd_arch_mips,       /* MIPS Rxxxx */
 693   bfd_arch_i386,       /* Intel 386 */
 694   bfd_arch_we32k,      /* AT&T WE32xxx */
 695   bfd_arch_tahoe,      /* CCI/Harris Tahoe */
 696   bfd_arch_i860,       /* Intel 860 */
 697   bfd_arch_romp,       /* IBM ROMP PC/RT */
 698   bfd_arch_alliant,    /* Alliant */
 699   bfd_arch_convex,     /* Convex */
 700   bfd_arch_m88k,       /* Motorola 88xxx */
 701   bfd_arch_pyramid,    /* Pyramid Technology */
 702   bfd_arch_h8300,      /* Hitachi H8/300 */
 703   bfd_arch_rs6000,     /* IBM RS/6000 */
 704   bfd_arch_hppa,       /* HP PA RISC */
 705   bfd_arch_z8k,        /* Zilog Z8000 */
 706 #define bfd_mach_z8001          1
 707 #define bfd_mach_z8002          2
 708   bfd_arch_h8500,      /* Hitachi H8/500 */
 709   bfd_arch_last
 710   };
 711
 712 typedef struct bfd_arch_info
 713 {
 714   int bits_per_word;
 715   int bits_per_address;
 716   int bits_per_byte;
 717   enum bfd_architecture arch;
 718   long mach;
 719   char *arch_name;
 720   CONST  char *printable_name;
 721   unsigned int section_align_power;
 722   /* true if this is the default machine for the architecture */
 723   boolean the_default;
 724   CONST struct bfd_arch_info * (*compatible)
 725         PARAMS ((CONST struct bfd_arch_info *a,
 726                  CONST struct bfd_arch_info *b));
 727
 728   boolean (*scan) PARAMS ((CONST struct bfd_arch_info *, CONST char *));
 729    /* How to disassemble an instruction, producing a printable
 730      representation on a specified stdio stream.  This isn't
 731      defined for most processors at present, because of the size
 732      of the additional tables it would drag in, and because gdb
 733      wants to use a different interface.  */
 734   unsigned int (*disassemble) PARAMS ((bfd_vma addr, CONST char *data,
 735                                         PTR stream));
 736
 737   struct bfd_arch_info *next;
 738 } bfd_arch_info_type;
 739 CONST char *
 740 bfd_printable_name PARAMS ((bfd *abfd));
 741
 742 bfd_arch_info_type *
 743 bfd_scan_arch PARAMS ((CONST char *));
 744
 745 CONST bfd_arch_info_type *
 746 bfd_arch_get_compatible PARAMS ((
 747     CONST bfd *abfd,
 748     CONST bfd *bbfd));
 749
 750 void
 751 bfd_set_arch_info PARAMS ((bfd *, bfd_arch_info_type *));
 752
 753 enum bfd_architecture
 754 bfd_get_arch PARAMS ((bfd *abfd));
 755
 756 unsigned long
 757 bfd_get_mach PARAMS ((bfd *abfd));
 758
 759 unsigned int
 760 bfd_arch_bits_per_byte PARAMS ((bfd *abfd));
 761
 762 unsigned int
 763 bfd_arch_bits_per_address PARAMS ((bfd *abfd));
 764
 765 bfd_arch_info_type *
 766 bfd_get_arch_info PARAMS ((bfd *));
 767
 768 bfd_arch_info_type *
 769 bfd_lookup_arch
 770  PARAMS ((enum bfd_architecture
 771     arch,
 772     long machine));
 773
 774 CONST char *
 775 bfd_printable_arch_mach
 776  PARAMS ((enum bfd_architecture arch, unsigned long machine));
 777
 778 typedef enum bfd_reloc_status
 779 {
 780         /* No errors detected */
 781   bfd_reloc_ok,
 782
 783         /* The relocation was performed, but there was an overflow. */
 784   bfd_reloc_overflow,
 785
 786         /* The address to relocate was not within the section supplied*/
 787   bfd_reloc_outofrange,
 788
 789         /* Used by special functions */
 790   bfd_reloc_continue,
 791
 792         /* Unused */
 793   bfd_reloc_notsupported,
 794
 795         /* Unsupported relocation size requested.  */
 796   bfd_reloc_other,
 797
 798         /* The symbol to relocate against was undefined.*/
 799   bfd_reloc_undefined,
 800
 801         /* The relocation was performed, but may not be ok - presently
 802           generated only when linking i960 coff files with i960 b.out
 803           symbols. */
 804   bfd_reloc_dangerous
 805  }
 806  bfd_reloc_status_type;
 807
 808
 809 typedef struct reloc_cache_entry
 810 {
 811         /* A pointer into the canonical table of pointers  */
 812   struct symbol_cache_entry **sym_ptr_ptr;
 813
 814         /* offset in section */
 815   rawdata_offset address;
 816
 817         /* addend for relocation value */
 818   bfd_vma addend;
 819
 820         /* Pointer to how to perform the required relocation */
 821   CONST struct reloc_howto_struct *howto;
 822
 823 } arelent;
 824
 825 typedef CONST struct reloc_howto_struct
 826 {
 827         /*  The type field has mainly a documetary use - the back end can
 828            to what it wants with it, though the normally the back end's
 829            external idea of what a reloc number would be would be stored
 830            in this field. For example, the a PC relative word relocation
 831            in a coff environment would have the type 023 - because that's
 832            what the outside world calls a R_PCRWORD reloc. */
 833   unsigned int type;
 834
 835         /*  The value the final relocation is shifted right by. This drops
 836            unwanted data from the relocation.  */
 837   unsigned int rightshift;
 838
 839         /*  The size of the item to be relocated - 0, is one byte, 1 is 2
 840            bytes, 2 is four bytes.  A negative value indicates that the
 841             result is to be subtracted from the data.  */
 842   int size;
 843
 844         /*  Now obsolete?  But m68k-coff still uses it... */
 845   unsigned int bitsize;
 846
 847         /*  Notes that the relocation is relative to the location in the
 848            data section of the addend. The relocation function will
 849            subtract from the relocation value the address of the location
 850            being relocated. */
 851   boolean pc_relative;
 852
 853   unsigned int bitpos;
 854
 855         /*  Now obsolete */
 856   boolean absolute;
 857
 858         /* Causes the relocation routine to return an error if overflow
 859           is detected when relocating. */
 860   boolean complain_on_overflow;
 861
 862         /* If this field is non null, then the supplied function is
 863           called rather than the normal function. This allows really
 864           strange relocation methods to be accomodated (e.g., i960 callj
 865           instructions). */
 866   bfd_reloc_status_type (*special_function)
 867                                     PARAMS ((bfd *abfd,
 868                                              arelent *reloc_entry,
 869                                             struct symbol_cache_entry *symbol,
 870                                             PTR data,
 871                                             asection *input_section,
 872                                             bfd *output_bfd));
 873
 874         /* The textual name of the relocation type. */
 875   char *name;
 876
 877         /* When performing a partial link, some formats must modify the
 878           relocations rather than the data - this flag signals this.*/
 879   boolean partial_inplace;
 880
 881         /* The src_mask is used to select what parts of the read in data
 882           are to be used in the relocation sum.  E.g., if this was an 8 bit
 883           bit of data which we read and relocated, this would be
 884           0x000000ff. When we have relocs which have an addend, such as
 885           sun4 extended relocs, the value in the offset part of a
 886           relocating field is garbage so we never use it. In this case
 887           the mask would be 0x00000000. */
 888   bfd_word src_mask;
 889
 890         /* The dst_mask is what parts of the instruction are replaced
 891           into the instruction. In most cases src_mask == dst_mask,
 892           except in the above special case, where dst_mask would be
 893           0x000000ff, and src_mask would be 0x00000000.   */
 894   bfd_word dst_mask;
 895
 896         /* When some formats create PC relative instructions, they leave
 897           the value of the pc of the place being relocated in the offset
 898           slot of the instruction, so that a PC relative relocation can
 899           be made just by adding in an ordinary offset (e.g., sun3 a.out).
 900           Some formats leave the displacement part of an instruction
 901           empty (e.g., m88k bcs), this flag signals the fact.*/
 902   boolean pcrel_offset;
 903
 904 } reloc_howto_type;
 905 #define HOWTO(C, R,S,B, P, BI, ABS, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
 906   {(unsigned)C,R,S,B, P, BI, ABS,O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC}
 907 #define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,false,false,FUNCTION, NAME,false,0,0,IN)
 908
 909 #define HOWTO_PREPARE(relocation, symbol)      \
 910   {                                            \
 911   if (symbol != (asymbol *)NULL) {             \
 912     if (bfd_is_com_section (symbol->section)) { \
 913       relocation = 0;                          \
 914     }                                          \
 915     else {                                     \
 916       relocation = symbol->value;              \
 917     }                                          \
 918   }                                            \
 919 }
 920 typedef unsigned char bfd_byte;
 921
 922 typedef struct relent_chain {
 923   arelent relent;
 924   struct   relent_chain *next;
 925 } arelent_chain;
 926 bfd_reloc_status_type
 927
 928 bfd_perform_relocation
 929  PARAMS ((bfd * abfd,
 930     arelent *reloc_entry,
 931     PTR data,
 932     asection *input_section,
 933     bfd *output_bfd));
 934
 935 typedef enum bfd_reloc_code_real
 936
 937 {
 938         /* 16 bits wide, simple reloc */
 939   BFD_RELOC_16,
 940
 941         /* 8 bits wide, but used to form an address like 0xffnn */
 942   BFD_RELOC_8_FFnn,
 943
 944         /* 8 bits wide, simple */
 945   BFD_RELOC_8,
 946
 947         /* 8 bits wide, pc relative */
 948   BFD_RELOC_8_PCREL,
 949
 950         /* The type of reloc used to build a contructor table - at the
 951           moment probably a 32 bit wide abs address, but the cpu can
 952           choose. */
 953
 954   BFD_RELOC_CTOR,
 955
 956         /* 32 bits wide, simple reloc */
 957   BFD_RELOC_32,
 958          /* 32 bits, PC-relative */
 959   BFD_RELOC_32_PCREL,
 960
 961          /* High 22 bits of 32-bit value; simple reloc.  */
 962   BFD_RELOC_HI22,
 963          /* Low 10 bits.  */
 964   BFD_RELOC_LO10,
 965
 966          /* Reloc types used for i960/b.out.  */
 967   BFD_RELOC_24_PCREL,
 968   BFD_RELOC_I960_CALLJ,
 969
 970   BFD_RELOC_16_PCREL,
 971          /* 32-bit pc-relative, shifted right 2 bits (i.e., 30-bit
 972            word displacement, e.g. for SPARC) */
 973   BFD_RELOC_32_PCREL_S2,
 974
 975    /* now for the sparc/elf codes */
 976   BFD_RELOC_NONE,                /* actually used */
 977   BFD_RELOC_SPARC_WDISP22,
 978   BFD_RELOC_SPARC22,
 979   BFD_RELOC_SPARC13,
 980   BFD_RELOC_SPARC_BASE13,
 981   BFD_RELOC_SPARC_GOT10,
 982   BFD_RELOC_SPARC_GOT13,
 983   BFD_RELOC_SPARC_GOT22,
 984   BFD_RELOC_SPARC_PC10,
 985   BFD_RELOC_SPARC_PC22,
 986   BFD_RELOC_SPARC_WPLT30,
 987   BFD_RELOC_SPARC_COPY,
 988   BFD_RELOC_SPARC_GLOB_DAT,
 989   BFD_RELOC_SPARC_JMP_SLOT,
 990   BFD_RELOC_SPARC_RELATIVE,
 991   BFD_RELOC_SPARC_UA32,
 992
 993    /* this one is a.out specific? */
 994   BFD_RELOC_SPARC_BASE22,
 995
 996         /* Bits 27..2 of the relocation address shifted right 2 bits;
 997          simple reloc otherwise.  */
 998   BFD_RELOC_MIPS_JMP,
 999
1000         /* signed 16-bit pc-relative, shifted right 2 bits (e.g. for MIPS) */
1001   BFD_RELOC_16_PCREL_S2,
1002
1003         /* High 16 bits of 32-bit value; simple reloc.  */
1004   BFD_RELOC_HI16,
1005         /* High 16 bits of 32-bit value but the low 16 bits will be sign
1006           extended and added to form the final result.  If the low 16
1007           bits form a negative number, we need to add one to the high value
1008           to compensate for the borrow when the low bits are added.  */
1009   BFD_RELOC_HI16_S,
1010         /* Low 16 bits.  */
1011   BFD_RELOC_LO16,
1012
1013          /* 16 bit relocation relative to the global pointer.  */
1014   BFD_RELOC_MIPS_GPREL,
1015
1016    /* this must be the highest numeric value */
1017   BFD_RELOC_UNUSED
1018  } bfd_reloc_code_real_type;
1019 CONST struct reloc_howto_struct *
1020
1021 bfd_reloc_type_lookup  PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
1022
1023 typedef struct symbol_cache_entry
1024 {
1025          /* A pointer to the BFD which owns the symbol. This information
1026            is necessary so that a back end can work out what additional
1027            information (invisible to the application writer) is carried
1028            with the symbol.
1029
1030            This field is *almost* redundant, since you can use section->owner
1031            instead, except that some symbols point to the global sections
1032            bfd_{abs,com,und}_section.  This could be fixed by making
1033            these globals be per-bfd (or per-target-flavor).  FIXME. */
1034
1035   struct _bfd *the_bfd;  /* Use bfd_asymbol_bfd(sym) to access this field. */
1036
1037          /* The text of the symbol. The name is left alone, and not copied - the
1038            application may not alter it. */
1039   CONST char *name;
1040
1041          /* The value of the symbol.*/
1042   symvalue value;
1043
1044          /* Attributes of a symbol: */
1045
1046 #define BSF_NO_FLAGS    0x00
1047
1048          /* The symbol has local scope; <<static>> in <<C>>. The value
1049            is the offset into the section of the data. */
1050 #define BSF_LOCAL       0x01
1051
1052          /* The symbol has global scope; initialized data in <<C>>. The
1053            value is the offset into the section of the data. */
1054 #define BSF_GLOBAL      0x02
1055
1056          /* Obsolete; should be deleted? */
1057 #define BSF_IMPORT      0x04
1058
1059          /* The symbol has global scope, and is exported. The value is
1060            the offset into the section of the data. */
1061 #define BSF_EXPORT      0x08
1062
1063          /* The symbol is undefined. <<extern>> in <<C>>. The value has
1064            no meaning.  Obsolete; should be deleted? */
1065 #define BSF_UNDEFINED_OBS 0x10
1066
1067          /* The symbol is common, initialized to zero; default in
1068            <<C>>. The value is the size of the object in bytes. */
1069 #define BSF_FORT_COMM_OBS       0x20
1070
1071          /* A normal C symbol would be one of:
1072            <<BSF_LOCAL>>, <<BSF_FORT_COMM>>,  <<BSF_UNDEFINED>> or
1073            <<BSF_EXPORT|BSD_GLOBAL>> */
1074
1075          /* The symbol is a debugging record. The value has an arbitary
1076            meaning. */
1077 #define BSF_DEBUGGING   0x40
1078
1079          /* Used by the linker. */
1080 #define BSF_KEEP        0x10000
1081 #define BSF_KEEP_G      0x80000
1082
1083          /* Unused; should be deleted? */
1084 #define BSF_WEAK        0x100000
1085 #define BSF_CTOR        0x200000
1086
1087         /* This symbol was created to point to a section, e.g. ELF's
1088            STT_SECTION symbols.  */
1089 #define BSF_SECTION_SYM 0x400000
1090
1091          /* The symbol used to be a common symbol, but now it is
1092            allocated. */
1093 #define BSF_OLD_COMMON  0x800000
1094
1095          /* The default value for common data. */
1096 #define BFD_FORT_COMM_DEFAULT_VALUE 0
1097
1098          /* In some files the type of a symbol sometimes alters its
1099            location in an output file - ie in coff a <<ISFCN>> symbol
1100            which is also <<C_EXT>> symbol appears where it was
1101            declared and not at the end of a section.  This bit is set
1102            by the target BFD part to convey this information. */
1103
1104 #define BSF_NOT_AT_END    0x40000
1105
1106          /* Signal that the symbol is the label of constructor section. */
1107 #define BSF_CONSTRUCTOR   0x1000000
1108
1109          /* Signal that the symbol is a warning symbol. If the symbol
1110            is a warning symbol, then the value field (I know this is
1111            tacky) will point to the asymbol which when referenced will
1112            cause the warning. */
1113 #define BSF_WARNING       0x2000000
1114
1115          /* Signal that the symbol is indirect. The value of the symbol
1116            is a pointer to an undefined asymbol which contains the
1117            name to use instead. */
1118 #define BSF_INDIRECT      0x4000000
1119
1120          /* BSF_FILE marks symbols that contain a file name.  This is used
1121            for ELF STT_FILE symbols.  */
1122 #define BSF_FILE          0x08000000
1123
1124   flagword flags;
1125
1126          /* A pointer to the section to which this symbol is
1127            relative.  This will always be non NULL, there are special
1128           sections for undefined and absolute symbols */
1129   struct sec *section;
1130
1131          /* Back end special data. This is being phased out in favour
1132            of making this a union. */
1133   PTR udata;
1134
1135 } asymbol;
1136 #define get_symtab_upper_bound(abfd) \
1137      BFD_SEND (abfd, _get_symtab_upper_bound, (abfd))
1138 #define bfd_canonicalize_symtab(abfd, location) \
1139      BFD_SEND (abfd, _bfd_canonicalize_symtab,\
1140                   (abfd, location))
1141 boolean
1142 bfd_set_symtab  PARAMS ((bfd *, asymbol **, unsigned int ));
1143
1144 void
1145 bfd_print_symbol_vandf PARAMS ((PTR file, asymbol *symbol));
1146
1147 #define bfd_make_empty_symbol(abfd) \
1148      BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
1149 #define bfd_make_debug_symbol(abfd,ptr,size) \
1150         BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
1151 int
1152 bfd_decode_symclass PARAMS ((asymbol *symbol));
1153
1154 struct _bfd
1155 {
1156      /* The filename the application opened the BFD with.  */
1157     CONST char *filename;
1158
1159      /* A pointer to the target jump table.             */
1160     struct bfd_target *xvec;
1161
1162      /* To avoid dragging too many header files into every file that
1163        includes `<<bfd.h>>', IOSTREAM has been declared as a "char
1164        *", and MTIME as a "long".  Their correct types, to which they
1165        are cast when used, are "FILE *" and "time_t".    The iostream
1166        is the result of an fopen on the filename. */
1167     char *iostream;
1168
1169      /* Is the file being cached */
1170
1171     boolean cacheable;
1172
1173      /* Marks whether there was a default target specified when the
1174        BFD was opened. This is used to select what matching algorithm
1175        to use to chose the back end. */
1176
1177     boolean target_defaulted;
1178
1179      /* The caching routines use these to maintain a
1180        least-recently-used list of BFDs */
1181
1182     struct _bfd *lru_prev, *lru_next;
1183
1184      /* When a file is closed by the caching routines, BFD retains
1185        state information on the file here:
1186      */
1187
1188     file_ptr where;
1189
1190      /* and here:*/
1191
1192     boolean opened_once;
1193
1194      /* Set if we have a locally maintained mtime value, rather than
1195        getting it from the file each time: */
1196
1197     boolean mtime_set;
1198
1199      /* File modified time, if mtime_set is true: */
1200
1201     long mtime;
1202
1203      /* Reserved for an unimplemented file locking extension.*/
1204
1205     int ifd;
1206
1207      /* The format which belongs to the BFD.*/
1208
1209     bfd_format format;
1210
1211      /* The direction the BFD was opened with*/
1212
1213     enum bfd_direction {no_direction = 0,
1214                         read_direction = 1,
1215                         write_direction = 2,
1216                         both_direction = 3} direction;
1217
1218      /* Format_specific flags*/
1219
1220     flagword flags;
1221
1222      /* Currently my_archive is tested before adding origin to
1223        anything. I believe that this can become always an add of
1224        origin, with origin set to 0 for non archive files.   */
1225
1226     file_ptr origin;
1227
1228      /* Remember when output has begun, to stop strange things
1229        happening. */
1230     boolean output_has_begun;
1231
1232      /* Pointer to linked list of sections*/
1233     struct sec  *sections;
1234
1235      /* The number of sections */
1236     unsigned int section_count;
1237
1238      /* Stuff only useful for object files:
1239        The start address. */
1240     bfd_vma start_address;
1241
1242      /* Used for input and output*/
1243     unsigned int symcount;
1244
1245      /* Symbol table for output BFD*/
1246     struct symbol_cache_entry  **outsymbols;
1247
1248      /* Pointer to structure which contains architecture information*/
1249     struct bfd_arch_info *arch_info;
1250
1251      /* Stuff only useful for archives:*/
1252     PTR arelt_data;
1253     struct _bfd *my_archive;
1254     struct _bfd *next;
1255     struct _bfd *archive_head;
1256     boolean has_armap;
1257
1258      /* Used by the back end to hold private data. */
1259
1260     union
1261       {
1262       struct aout_data_struct *aout_data;
1263       struct artdata *aout_ar_data;
1264       struct _oasys_data *oasys_obj_data;
1265       struct _oasys_ar_data *oasys_ar_data;
1266       struct coff_tdata *coff_obj_data;
1267       struct ecoff_tdata *ecoff_obj_data;
1268       struct ieee_data_struct *ieee_data;
1269       struct ieee_ar_data_struct *ieee_ar_data;
1270       struct srec_data_struct *srec_data;
1271       struct tekhex_data_struct *tekhex_data;
1272       struct elf_obj_tdata *elf_obj_data;
1273       struct bout_data_struct *bout_data;
1274       struct sun_core_struct *sun_core_data;
1275       struct trad_core_struct *trad_core_data;
1276       struct hppa_data_struct *hppa_data;
1277       struct hppa_core_struct *hppa_core_data;
1278       PTR any;
1279       } tdata;
1280
1281      /* Used by the application to hold private data*/
1282     PTR usrdata;
1283
1284      /* Where all the allocated stuff under this BFD goes */
1285     struct obstack memory;
1286
1287      /* Is this really needed in addition to usrdata?  */
1288     asymbol **ld_symbols;
1289 };
1290
1291 unsigned int
1292 bfd_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
1293
1294 unsigned int
1295 bfd_canonicalize_reloc
1296  PARAMS ((bfd *abfd,
1297     asection *sec,
1298     arelent **loc,
1299     asymbol     **syms));
1300
1301 boolean
1302 bfd_set_file_flags PARAMS ((bfd *abfd, flagword flags));
1303
1304 void
1305 bfd_set_reloc
1306  PARAMS ((bfd *abfd, asection *sec, arelent **rel, unsigned int count)
1307
1308     );
1309
1310 boolean
1311 bfd_set_start_address PARAMS ((bfd *, bfd_vma));
1312
1313 long
1314 bfd_get_mtime PARAMS ((bfd *));
1315
1316 long
1317 bfd_get_size PARAMS ((bfd *));
1318
1319 int
1320 bfd_get_gp_size PARAMS ((bfd *));
1321
1322 void
1323 bfd_set_gp_size PARAMS ((bfd *, int));
1324
1325 #define bfd_sizeof_headers(abfd, reloc) \
1326      BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
1327
1328 #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
1329      BFD_SEND (abfd, _bfd_find_nearest_line,  (abfd, sec, syms, off, file, func, line))
1330
1331         /* Do these three do anything useful at all, for any back end?  */
1332 #define bfd_debug_info_start(abfd) \
1333         BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
1334
1335 #define bfd_debug_info_end(abfd) \
1336         BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
1337
1338 #define bfd_debug_info_accumulate(abfd, section) \
1339         BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
1340
1341
1342 #define bfd_stat_arch_elt(abfd, stat) \
1343         BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
1344
1345 #define bfd_set_arch_mach(abfd, arch, mach)\
1346         BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
1347
1348 #define bfd_get_relocated_section_contents(abfd, seclet, data, relocateable) \
1349         BFD_SEND (abfd, _bfd_get_relocated_section_contents, (abfd, seclet, data, relocateable))
1350
1351 #define bfd_relax_section(abfd, section, symbols) \
1352        BFD_SEND (abfd, _bfd_relax_section, (abfd, section, symbols))
1353
1354 #define bfd_seclet_link(abfd, data, relocateable) \
1355        BFD_SEND (abfd, _bfd_seclet_link, (abfd, data, relocateable))
1356 symindex
1357 bfd_get_next_mapent PARAMS ((bfd *, symindex previous, carsym ** sym));
1358
1359 boolean
1360 bfd_set_archive_head PARAMS ((bfd *output, bfd *new_head));
1361
1362 bfd *
1363 bfd_get_elt_at_index PARAMS ((bfd * archive, int index));
1364
1365 bfd*
1366 bfd_openr_next_archived_file PARAMS ((bfd *archive, bfd *previous));
1367
1368 CONST char *
1369 bfd_core_file_failing_command PARAMS ((bfd *));
1370
1371 int
1372 bfd_core_file_failing_signal PARAMS ((bfd *));
1373
1374 boolean
1375 core_file_matches_executable_p
1376  PARAMS ((bfd *core_bfd, bfd *exec_bfd));
1377
1378 #define BFD_SEND(bfd, message, arglist) \
1379                ((*((bfd)->xvec->message)) arglist)
1380 #define BFD_SEND_FMT(bfd, message, arglist) \
1381             (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
1382 typedef struct bfd_target
1383 {
1384   char *name;
1385   enum target_flavour {
1386     bfd_target_unknown_flavour,
1387     bfd_target_aout_flavour,
1388     bfd_target_coff_flavour,
1389     bfd_target_ecoff_flavour,
1390     bfd_target_elf_flavour,
1391     bfd_target_ieee_flavour,
1392     bfd_target_oasys_flavour,
1393     bfd_target_tekhex_flavour,
1394     bfd_target_srec_flavour,
1395     bfd_target_hppa_flavour} flavour;
1396   boolean byteorder_big_p;
1397   boolean header_byteorder_big_p;
1398   flagword object_flags;
1399   flagword section_flags;
1400   char symbol_leading_char;
1401   char ar_pad_char;
1402   unsigned short ar_max_namelen;
1403   unsigned int align_power_min;
1404   bfd_vma      (*bfd_getx64) PARAMS ((bfd_byte *));
1405   void         (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
1406   bfd_vma      (*bfd_getx32) PARAMS ((bfd_byte *));
1407   void         (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
1408   bfd_vma      (*bfd_getx16) PARAMS ((bfd_byte *));
1409   void         (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
1410   bfd_vma      (*bfd_h_getx64) PARAMS ((bfd_byte *));
1411   void         (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
1412   bfd_vma      (*bfd_h_getx32) PARAMS ((bfd_byte *));
1413   void         (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
1414   bfd_vma      (*bfd_h_getx16) PARAMS ((bfd_byte *));
1415   void         (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
1416   struct bfd_target * (*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
1417   boolean             (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
1418   boolean             (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
1419   char *   (*_core_file_failing_command) PARAMS ((bfd *));
1420   int      (*_core_file_failing_signal) PARAMS ((bfd *));
1421   boolean  (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
1422   boolean  (*_bfd_slurp_armap) PARAMS ((bfd *));
1423   boolean  (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
1424   void     (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
1425   boolean  (*write_armap) PARAMS ((bfd *arch,
1426                               unsigned int elength,
1427                               struct orl *map,
1428                               unsigned int orl_count,
1429                               int stridx));
1430   boolean       (*_close_and_cleanup) PARAMS ((bfd *));
1431   boolean       (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
1432                                             file_ptr, bfd_size_type));
1433   boolean       (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
1434                                             file_ptr, bfd_size_type));
1435   boolean       (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
1436   unsigned int  (*_get_symtab_upper_bound) PARAMS ((bfd *));
1437   unsigned int  (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
1438                                               struct symbol_cache_entry **));
1439   unsigned int  (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
1440   unsigned int  (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
1441                                               struct symbol_cache_entry **));
1442   struct symbol_cache_entry  *
1443                 (*_bfd_make_empty_symbol) PARAMS ((bfd *));
1444   void          (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
1445                                       struct symbol_cache_entry *,
1446                                       bfd_print_symbol_type));
1447 #define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
1448   alent *    (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
1449
1450   boolean    (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
1451                     unsigned long));
1452
1453   bfd *      (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
1454
1455   boolean    (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
1456                     struct sec *section, struct symbol_cache_entry **symbols,
1457                     bfd_vma offset, CONST char **file, CONST char **func,
1458                     unsigned int *line));
1459
1460   int        (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
1461
1462   int        (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
1463
1464   void       (*_bfd_debug_info_start) PARAMS ((bfd *));
1465   void       (*_bfd_debug_info_end) PARAMS ((bfd *));
1466   void       (*_bfd_debug_info_accumulate) PARAMS ((bfd *, struct sec *));
1467
1468   bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
1469                     struct bfd_seclet *, bfd_byte *data,
1470                     boolean relocateable));
1471
1472   boolean    (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
1473                     struct symbol_cache_entry **));
1474
1475   boolean    (*_bfd_seclet_link) PARAMS ((bfd *, PTR data,
1476                      boolean relocateable));
1477   /* See documentation on reloc types.  */
1478  CONST struct reloc_howto_struct *
1479        (*reloc_type_lookup) PARAMS ((bfd *abfd,
1480                                      bfd_reloc_code_real_type code));
1481
1482   /* Back-door to allow format-aware applications to create debug symbols
1483     while using BFD for everything else.  Currently used by the assembler
1484     when creating COFF files.  */
1485  asymbol *  (*_bfd_make_debug_symbol) PARAMS ((
1486        bfd *abfd,
1487        void *ptr,
1488        unsigned long size));
1489  PTR backend_data;
1490 } bfd_target;
1491 bfd_target *
1492 bfd_find_target PARAMS ((CONST char *, bfd *));
1493
1494 CONST char **
1495 bfd_target_list PARAMS ((void));
1496
1497 boolean
1498 bfd_check_format PARAMS ((bfd *abfd, bfd_format format));
1499
1500 boolean
1501 bfd_set_format PARAMS ((bfd *, bfd_format));
1502
1503 CONST char *
1504 bfd_format_string PARAMS ((bfd_format));
1505
1506 #endif