bfd/bfd-in2.h

   1 /* Main header file for the bfd library -- portable access to object files.
   2    Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
   3    Free Software Foundation, Inc.
   4    Contributed by Cygnus Support.
   5
   6 ** NOTE: bfd.h and bfd-in2.h are GENERATED files.  Don't change them;
   7 ** instead, change bfd-in.h or the other BFD source files processed to
   8 ** generate these files.
   9
  10 This file is part of BFD, the Binary File Descriptor library.
  11
  12 This program is free software; you can redistribute it and/or modify
  13 it under the terms of the GNU General Public License as published by
  14 the Free Software Foundation; either version 2 of the License, or
  15 (at your option) any later version.
  16
  17 This program is distributed in the hope that it will be useful,
  18 but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 GNU General Public License for more details.
  21
  22 You should have received a copy of the GNU General Public License
  23 along with this program; if not, write to the Free Software
  24 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  25
  26 /* bfd.h -- The only header file required by users of the bfd library
  27
  28 The bfd.h file is generated from bfd-in.h and various .c files; if you
  29 change it, your changes will probably be lost.
  30
  31 All the prototypes and definitions following the comment "THE FOLLOWING
  32 IS EXTRACTED FROM THE SOURCE" are extracted from the source files for
  33 BFD.  If you change it, someone oneday will extract it from the source
  34 again, and your changes will be lost.  To save yourself from this bind,
  35 change the definitions in the source in the bfd directory.  Type "make
  36 docs" and then "make headers" in that directory, and magically this file
  37 will change to reflect your changes.
  38
  39 If you don't have the tools to perform the extraction, then you are
  40 safe from someone on your system trampling over your header files.
  41 You should still maintain the equivalence between the source and this
  42 file though; every change you make to the .c file should be reflected
  43 here.  */
  44
  45 #ifndef __BFD_H_SEEN__
  46 #define __BFD_H_SEEN__
  47
  48 #ifdef __cplusplus
  49 extern "C" {
  50 #endif
  51
  52 #include "ansidecl.h"
  53
  54 /* These two lines get substitutions done by commands in Makefile.in.  */
  55 #define BFD_VERSION  "@VERSION@"
  56 #define BFD_ARCH_SIZE @wordsize@
  57 #define BFD_HOST_64BIT_LONG @BFD_HOST_64BIT_LONG@
  58 #if @BFD_HOST_64_BIT_DEFINED@
  59 #define BFD_HOST_64_BIT @BFD_HOST_64_BIT@
  60 #define BFD_HOST_U_64_BIT @BFD_HOST_U_64_BIT@
  61 #endif
  62
  63 #if BFD_ARCH_SIZE >= 64
  64 #define BFD64
  65 #endif
  66
  67 #ifndef INLINE
  68 #if __GNUC__ >= 2
  69 #define INLINE __inline__
  70 #else
  71 #define INLINE
  72 #endif
  73 #endif
  74
  75 /* forward declaration */
  76 typedef struct _bfd bfd;
  77
  78 /* To squelch erroneous compiler warnings ("illegal pointer
  79    combination") from the SVR3 compiler, we would like to typedef
  80    boolean to int (it doesn't like functions which return boolean.
  81    Making sure they are never implicitly declared to return int
  82    doesn't seem to help).  But this file is not configured based on
  83    the host.  */
  84 /* General rules: functions which are boolean return true on success
  85    and false on failure (unless they're a predicate).   -- bfd.doc */
  86 /* I'm sure this is going to break something and someone is going to
  87    force me to change it. */
  88 /* typedef enum boolean {false, true} boolean; */
  89 /* Yup, SVR4 has a "typedef enum boolean" in <sys/types.h>  -fnf */
  90 /* It gets worse if the host also defines a true/false enum... -sts */
  91 /* And even worse if your compiler has built-in boolean types... -law */
  92 #if defined (__GNUG__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 6))
  93 #define TRUE_FALSE_ALREADY_DEFINED
  94 #endif
  95 #ifdef MPW
  96 /* Pre-emptive strike - get the file with the enum. */
  97 #include <Types.h>
  98 #define TRUE_FALSE_ALREADY_DEFINED
  99 #endif /* MPW */
 100 #ifndef TRUE_FALSE_ALREADY_DEFINED
 101 typedef enum bfd_boolean {false, true} boolean;
 102 #define BFD_TRUE_FALSE
 103 #else
 104 /* Use enum names that will appear nowhere else.  */
 105 typedef enum bfd_boolean {bfd_fffalse, bfd_tttrue} boolean;
 106 #endif
 107
 108 /* A pointer to a position in a file.  */
 109 /* FIXME:  This should be using off_t from <sys/types.h>.
 110    For now, try to avoid breaking stuff by not including <sys/types.h> here.
 111    This will break on systems with 64-bit file offsets (e.g. 4.4BSD).
 112    Probably the best long-term answer is to avoid using file_ptr AND off_t
 113    in this header file, and to handle this in the BFD implementation
 114    rather than in its interface.  */
 115 /* typedef off_t        file_ptr; */
 116 typedef long int file_ptr;
 117
 118 /* Support for different sizes of target format ints and addresses.
 119    If the type `long' is at least 64 bits, BFD_HOST_64BIT_LONG will be
 120    set to 1 above.  Otherwise, if gcc is being used, this code will
 121    use gcc's "long long" type.  Otherwise, BFD_HOST_64_BIT must be
 122    defined above.  */
 123
 124 #ifndef BFD_HOST_64_BIT
 125 # if BFD_HOST_64BIT_LONG
 126 #  define BFD_HOST_64_BIT long
 127 #  define BFD_HOST_U_64_BIT unsigned long
 128 # else
 129 #  ifdef __GNUC__
 130 #   if __GNUC__ >= 2
 131 #    define BFD_HOST_64_BIT long long
 132 #    define BFD_HOST_U_64_BIT unsigned long long
 133 #   endif /* __GNUC__ >= 2 */
 134 #  endif /* ! defined (__GNUC__) */
 135 # endif /* ! BFD_HOST_64BIT_LONG */
 136 #endif /* ! defined (BFD_HOST_64_BIT) */
 137
 138 #ifdef BFD64
 139
 140 #ifndef BFD_HOST_64_BIT
 141  #error No 64 bit integer type available
 142 #endif /* ! defined (BFD_HOST_64_BIT) */
 143
 144 typedef BFD_HOST_U_64_BIT bfd_vma;
 145 typedef BFD_HOST_64_BIT bfd_signed_vma;
 146 typedef BFD_HOST_U_64_BIT bfd_size_type;
 147 typedef BFD_HOST_U_64_BIT symvalue;
 148
 149 #ifndef fprintf_vma
 150 #if BFD_HOST_64BIT_LONG
 151 #define sprintf_vma(s,x) sprintf (s, "%016lx", x)
 152 #define fprintf_vma(f,x) fprintf (f, "%016lx", x)
 153 #else
 154 #define _bfd_int64_low(x) ((unsigned long) (((x) & 0xffffffff)))
 155 #define _bfd_int64_high(x) ((unsigned long) (((x) >> 32) & 0xffffffff))
 156 #define fprintf_vma(s,x) \
 157   fprintf ((s), "%08lx%08lx", _bfd_int64_high (x), _bfd_int64_low (x))
 158 #define sprintf_vma(s,x) \
 159   sprintf ((s), "%08lx%08lx", _bfd_int64_high (x), _bfd_int64_low (x))
 160 #endif
 161 #endif
 162
 163 #else /* not BFD64  */
 164
 165 /* Represent a target address.  Also used as a generic unsigned type
 166    which is guaranteed to be big enough to hold any arithmetic types
 167    we need to deal with.  */
 168 typedef unsigned long bfd_vma;
 169
 170 /* A generic signed type which is guaranteed to be big enough to hold any
 171    arithmetic types we need to deal with.  Can be assumed to be compatible
 172    with bfd_vma in the same way that signed and unsigned ints are compatible
 173    (as parameters, in assignment, etc).  */
 174 typedef long bfd_signed_vma;
 175
 176 typedef unsigned long symvalue;
 177 typedef unsigned long bfd_size_type;
 178
 179 /* Print a bfd_vma x on stream s.  */
 180 #define fprintf_vma(s,x) fprintf(s, "%08lx", x)
 181 #define sprintf_vma(s,x) sprintf(s, "%08lx", x)
 182
 183 #endif /* not BFD64  */
 184
 185 #define printf_vma(x) fprintf_vma(stdout,x)
 186
 187 typedef unsigned int flagword;  /* 32 bits of flags */
 188 typedef unsigned char bfd_byte;
 189 \f
 190 /** File formats */
 191
 192 typedef enum bfd_format {
 193               bfd_unknown = 0,  /* file format is unknown */
 194               bfd_object,       /* linker/assember/compiler output */
 195               bfd_archive,      /* object archive file */
 196               bfd_core,         /* core dump */
 197               bfd_type_end}     /* marks the end; don't use it! */
 198          bfd_format;
 199
 200 /* Values that may appear in the flags field of a BFD.  These also
 201    appear in the object_flags field of the bfd_target structure, where
 202    they indicate the set of flags used by that backend (not all flags
 203    are meaningful for all object file formats) (FIXME: at the moment,
 204    the object_flags values have mostly just been copied from backend
 205    to another, and are not necessarily correct).  */
 206
 207 /* No flags.  */
 208 #define BFD_NO_FLAGS    0x00
 209
 210 /* BFD contains relocation entries.  */
 211 #define HAS_RELOC       0x01
 212
 213 /* BFD is directly executable.  */
 214 #define EXEC_P          0x02
 215
 216 /* BFD has line number information (basically used for F_LNNO in a
 217    COFF header).  */
 218 #define HAS_LINENO      0x04
 219
 220 /* BFD has debugging information.  */
 221 #define HAS_DEBUG       0x08
 222
 223 /* BFD has symbols.  */
 224 #define HAS_SYMS        0x10
 225
 226 /* BFD has local symbols (basically used for F_LSYMS in a COFF
 227    header).  */
 228 #define HAS_LOCALS      0x20
 229
 230 /* BFD is a dynamic object.  */
 231 #define DYNAMIC         0x40
 232
 233 /* Text section is write protected (if D_PAGED is not set, this is
 234    like an a.out NMAGIC file) (the linker sets this by default, but
 235    clears it for -r or -N).  */
 236 #define WP_TEXT         0x80
 237
 238 /* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
 239    linker sets this by default, but clears it for -r or -n or -N).  */
 240 #define D_PAGED         0x100
 241
 242 /* BFD is relaxable (this means that bfd_relax_section may be able to
 243    do something) (sometimes bfd_relax_section can do something even if
 244    this is not set).  */
 245 #define BFD_IS_RELAXABLE 0x200
 246
 247 /* This may be set before writing out a BFD to request using a
 248    traditional format.  For example, this is used to request that when
 249    writing out an a.out object the symbols not be hashed to eliminate
 250    duplicates.  */
 251 #define BFD_TRADITIONAL_FORMAT 0x400
 252
 253 /* This flag indicates that the BFD contents are actually cached in
 254    memory.  If this is set, iostream points to a bfd_in_memory struct.  */
 255 #define BFD_IN_MEMORY 0x800
 256 \f
 257 /* symbols and relocation */
 258
 259 /* A count of carsyms (canonical archive symbols).  */
 260 typedef unsigned long symindex;
 261
 262 /* How to perform a relocation.  */
 263 typedef const struct reloc_howto_struct reloc_howto_type;
 264
 265 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
 266
 267 /* General purpose part of a symbol X;
 268    target specific parts are in libcoff.h, libaout.h, etc.  */
 269
 270 #define bfd_get_section(x) ((x)->section)
 271 #define bfd_get_output_section(x) ((x)->section->output_section)
 272 #define bfd_set_section(x,y) ((x)->section) = (y)
 273 #define bfd_asymbol_base(x) ((x)->section->vma)
 274 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
 275 #define bfd_asymbol_name(x) ((x)->name)
 276 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
 277 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
 278 #define bfd_asymbol_flavour(x) (bfd_asymbol_bfd(x)->xvec->flavour)
 279
 280 /* A canonical archive symbol.  */
 281 /* This is a type pun with struct ranlib on purpose! */
 282 typedef struct carsym {
 283   char *name;
 284   file_ptr file_offset;         /* look here to find the file */
 285 } carsym;                       /* to make these you call a carsymogen */
 286
 287
 288 /* Used in generating armaps (archive tables of contents).
 289    Perhaps just a forward definition would do? */
 290 struct orl {                    /* output ranlib */
 291   char **name;                  /* symbol name */
 292   file_ptr pos;                 /* bfd* or file position */
 293   int namidx;                   /* index into string table */
 294 };
 295 \f
 296
 297 /* Linenumber stuff */
 298 typedef struct lineno_cache_entry {
 299   unsigned int line_number;     /* Linenumber from start of function*/
 300   union {
 301     struct symbol_cache_entry *sym; /* Function name */
 302     unsigned long offset;       /* Offset into section */
 303   } u;
 304 } alent;
 305 \f
 306 /* object and core file sections */
 307
 308 #define align_power(addr, align)        \
 309         ( ((addr) + ((1<<(align))-1)) & (-1 << (align)))
 310
 311 typedef struct sec *sec_ptr;
 312
 313 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0)
 314 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0)
 315 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0)
 316 #define bfd_section_name(bfd, ptr) ((ptr)->name)
 317 #define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
 318 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
 319 #define bfd_section_lma(bfd, ptr) ((ptr)->lma)
 320 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
 321 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
 322 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
 323
 324 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
 325
 326 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma= (val)), ((ptr)->user_set_vma = (boolean)true), true)
 327 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),true)
 328 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),true)
 329
 330 typedef struct stat stat_type;
 331 \f
 332 typedef enum bfd_print_symbol
 333 {
 334   bfd_print_symbol_name,
 335   bfd_print_symbol_more,
 336   bfd_print_symbol_all
 337 } bfd_print_symbol_type;
 338
 339 /* Information about a symbol that nm needs.  */
 340
 341 typedef struct _symbol_info
 342 {
 343   symvalue value;
 344   char type;
 345   CONST char *name;            /* Symbol name.  */
 346   unsigned char stab_type;     /* Stab type.  */
 347   char stab_other;             /* Stab other. */
 348   short stab_desc;             /* Stab desc.  */
 349   CONST char *stab_name;       /* String for stab type.  */
 350 } symbol_info;
 351
 352 /* Get the name of a stabs type code.  */
 353
 354 extern const char *bfd_get_stab_name PARAMS ((int));
 355 \f
 356 /* Hash table routines.  There is no way to free up a hash table.  */
 357
 358 /* An element in the hash table.  Most uses will actually use a larger
 359    structure, and an instance of this will be the first field.  */
 360
 361 struct bfd_hash_entry
 362 {
 363   /* Next entry for this hash code.  */
 364   struct bfd_hash_entry *next;
 365   /* String being hashed.  */
 366   const char *string;
 367   /* Hash code.  This is the full hash code, not the index into the
 368      table.  */
 369   unsigned long hash;
 370 };
 371
 372 /* A hash table.  */
 373
 374 struct bfd_hash_table
 375 {
 376   /* The hash array.  */
 377   struct bfd_hash_entry **table;
 378   /* The number of slots in the hash table.  */
 379   unsigned int size;
 380   /* A function used to create new elements in the hash table.  The
 381      first entry is itself a pointer to an element.  When this
 382      function is first invoked, this pointer will be NULL.  However,
 383      having the pointer permits a hierarchy of method functions to be
 384      built each of which calls the function in the superclass.  Thus
 385      each function should be written to allocate a new block of memory
 386      only if the argument is NULL.  */
 387   struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
 388                                              struct bfd_hash_table *,
 389                                              const char *));
 390    /* An objalloc for this hash table.  This is a struct objalloc *,
 391      but we use PTR to avoid requiring the inclusion of objalloc.h.  */
 392   PTR memory;
 393 };
 394
 395 /* Initialize a hash table.  */
 396 extern boolean bfd_hash_table_init
 397   PARAMS ((struct bfd_hash_table *,
 398            struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 399                                        struct bfd_hash_table *,
 400                                        const char *)));
 401
 402 /* Initialize a hash table specifying a size.  */
 403 extern boolean bfd_hash_table_init_n
 404   PARAMS ((struct bfd_hash_table *,
 405            struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 406                                        struct bfd_hash_table *,
 407                                        const char *),
 408            unsigned int size));
 409
 410 /* Free up a hash table.  */
 411 extern void bfd_hash_table_free PARAMS ((struct bfd_hash_table *));
 412
 413 /* Look up a string in a hash table.  If CREATE is true, a new entry
 414    will be created for this string if one does not already exist.  The
 415    COPY argument must be true if this routine should copy the string
 416    into newly allocated memory when adding an entry.  */
 417 extern struct bfd_hash_entry *bfd_hash_lookup
 418   PARAMS ((struct bfd_hash_table *, const char *, boolean create,
 419            boolean copy));
 420
 421 /* Replace an entry in a hash table.  */
 422 extern void bfd_hash_replace
 423   PARAMS ((struct bfd_hash_table *, struct bfd_hash_entry *old,
 424            struct bfd_hash_entry *nw));
 425
 426 /* Base method for creating a hash table entry.  */
 427 extern struct bfd_hash_entry *bfd_hash_newfunc
 428   PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
 429            const char *));
 430
 431 /* Grab some space for a hash table entry.  */
 432 extern PTR bfd_hash_allocate PARAMS ((struct bfd_hash_table *,
 433                                       unsigned int));
 434
 435 /* Traverse a hash table in a random order, calling a function on each
 436    element.  If the function returns false, the traversal stops.  The
 437    INFO argument is passed to the function.  */
 438 extern void bfd_hash_traverse PARAMS ((struct bfd_hash_table *,
 439                                        boolean (*) (struct bfd_hash_entry *,
 440                                                     PTR),
 441                                        PTR info));
 442 \f
 443 /* Semi-portable string concatenation in cpp.
 444    The CAT4 hack is to avoid a problem with some strict ANSI C preprocessors.
 445    The problem is, "32_" is not a valid preprocessing token, and we don't
 446    want extra underscores (e.g., "nlm_32_").  The XCAT2 macro will cause the
 447    inner CAT macros to be evaluated first, producing still-valid pp-tokens.
 448    Then the final concatenation can be done.  (Sigh.)  */
 449 #ifndef CAT
 450 #ifdef SABER
 451 #define CAT(a,b)        a##b
 452 #define CAT3(a,b,c)     a##b##c
 453 #define CAT4(a,b,c,d)   a##b##c##d
 454 #else
 455 #if defined(__STDC__) || defined(ALMOST_STDC)
 456 #define CAT(a,b) a##b
 457 #define CAT3(a,b,c) a##b##c
 458 #define XCAT2(a,b)      CAT(a,b)
 459 #define CAT4(a,b,c,d)   XCAT2(CAT(a,b),CAT(c,d))
 460 #else
 461 #define CAT(a,b) a/**/b
 462 #define CAT3(a,b,c) a/**/b/**/c
 463 #define CAT4(a,b,c,d)   a/**/b/**/c/**/d
 464 #endif
 465 #endif
 466 #endif
 467
 468 #define COFF_SWAP_TABLE (PTR) &bfd_coff_std_swap_table
 469 \f
 470 /* User program access to BFD facilities */
 471
 472 /* Direct I/O routines, for programs which know more about the object
 473    file than BFD does.  Use higher level routines if possible.  */
 474
 475 extern bfd_size_type bfd_read
 476   PARAMS ((PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
 477 extern bfd_size_type bfd_write
 478   PARAMS ((const PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
 479 extern int bfd_seek PARAMS ((bfd *abfd, file_ptr fp, int direction));
 480 extern long bfd_tell PARAMS ((bfd *abfd));
 481 extern int bfd_flush PARAMS ((bfd *abfd));
 482 extern int bfd_stat PARAMS ((bfd *abfd, struct stat *));
 483
 484
 485 /* Cast from const char * to char * so that caller can assign to
 486    a char * without a warning.  */
 487 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
 488 #define bfd_get_cacheable(abfd) ((abfd)->cacheable)
 489 #define bfd_get_format(abfd) ((abfd)->format)
 490 #define bfd_get_target(abfd) ((abfd)->xvec->name)
 491 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
 492 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG)
 493 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE)
 494 #define bfd_header_big_endian(abfd) \
 495   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG)
 496 #define bfd_header_little_endian(abfd) \
 497   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE)
 498 #define bfd_get_file_flags(abfd) ((abfd)->flags)
 499 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
 500 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
 501 #define bfd_my_archive(abfd) ((abfd)->my_archive)
 502 #define bfd_has_map(abfd) ((abfd)->has_armap)
 503
 504 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
 505 #define bfd_usrdata(abfd) ((abfd)->usrdata)
 506
 507 #define bfd_get_start_address(abfd) ((abfd)->start_address)
 508 #define bfd_get_symcount(abfd) ((abfd)->symcount)
 509 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
 510 #define bfd_count_sections(abfd) ((abfd)->section_count)
 511
 512 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
 513
 514 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = (boolean)(bool)), true)
 515
 516 extern boolean bfd_record_phdr
 517   PARAMS ((bfd *, unsigned long, boolean, flagword, boolean, bfd_vma,
 518            boolean, boolean, unsigned int, struct sec **));
 519
 520 /* Byte swapping routines.  */
 521
 522 bfd_vma         bfd_getb64         PARAMS ((const unsigned char *));
 523 bfd_vma         bfd_getl64         PARAMS ((const unsigned char *));
 524 bfd_signed_vma  bfd_getb_signed_64 PARAMS ((const unsigned char *));
 525 bfd_signed_vma  bfd_getl_signed_64 PARAMS ((const unsigned char *));
 526 bfd_vma         bfd_getb32         PARAMS ((const unsigned char *));
 527 bfd_vma         bfd_getl32         PARAMS ((const unsigned char *));
 528 bfd_signed_vma  bfd_getb_signed_32 PARAMS ((const unsigned char *));
 529 bfd_signed_vma  bfd_getl_signed_32 PARAMS ((const unsigned char *));
 530 bfd_vma         bfd_getb16         PARAMS ((const unsigned char *));
 531 bfd_vma         bfd_getl16         PARAMS ((const unsigned char *));
 532 bfd_signed_vma  bfd_getb_signed_16 PARAMS ((const unsigned char *));
 533 bfd_signed_vma  bfd_getl_signed_16 PARAMS ((const unsigned char *));
 534 void            bfd_putb64         PARAMS ((bfd_vma, unsigned char *));
 535 void            bfd_putl64         PARAMS ((bfd_vma, unsigned char *));
 536 void            bfd_putb32         PARAMS ((bfd_vma, unsigned char *));
 537 void            bfd_putl32         PARAMS ((bfd_vma, unsigned char *));
 538 void            bfd_putb16         PARAMS ((bfd_vma, unsigned char *));
 539 void            bfd_putl16         PARAMS ((bfd_vma, unsigned char *));
 540 \f
 541 /* Externally visible ECOFF routines.  */
 542
 543 #if defined(__STDC__) || defined(ALMOST_STDC)
 544 struct ecoff_debug_info;
 545 struct ecoff_debug_swap;
 546 struct ecoff_extr;
 547 struct symbol_cache_entry;
 548 struct bfd_link_info;
 549 struct bfd_link_hash_entry;
 550 struct bfd_elf_version_tree;
 551 #endif
 552 extern bfd_vma bfd_ecoff_get_gp_value PARAMS ((bfd * abfd));
 553 extern boolean bfd_ecoff_set_gp_value PARAMS ((bfd *abfd, bfd_vma gp_value));
 554 extern boolean bfd_ecoff_set_regmasks
 555   PARAMS ((bfd *abfd, unsigned long gprmask, unsigned long fprmask,
 556            unsigned long *cprmask));
 557 extern PTR bfd_ecoff_debug_init
 558   PARAMS ((bfd *output_bfd, struct ecoff_debug_info *output_debug,
 559            const struct ecoff_debug_swap *output_swap,
 560            struct bfd_link_info *));
 561 extern void bfd_ecoff_debug_free
 562   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 563            const struct ecoff_debug_swap *output_swap,
 564            struct bfd_link_info *));
 565 extern boolean bfd_ecoff_debug_accumulate
 566   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 567            const struct ecoff_debug_swap *output_swap,
 568            bfd *input_bfd, struct ecoff_debug_info *input_debug,
 569            const struct ecoff_debug_swap *input_swap,
 570            struct bfd_link_info *));
 571 extern boolean bfd_ecoff_debug_accumulate_other
 572   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 573            const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 574            struct bfd_link_info *));
 575 extern boolean bfd_ecoff_debug_externals
 576   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 577            const struct ecoff_debug_swap *swap,
 578            boolean relocateable,
 579            boolean (*get_extr) (struct symbol_cache_entry *,
 580                                 struct ecoff_extr *),
 581            void (*set_index) (struct symbol_cache_entry *,
 582                               bfd_size_type)));
 583 extern boolean bfd_ecoff_debug_one_external
 584   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 585            const struct ecoff_debug_swap *swap,
 586            const char *name, struct ecoff_extr *esym));
 587 extern bfd_size_type bfd_ecoff_debug_size
 588   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 589            const struct ecoff_debug_swap *swap));
 590 extern boolean bfd_ecoff_write_debug
 591   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 592            const struct ecoff_debug_swap *swap, file_ptr where));
 593 extern boolean bfd_ecoff_write_accumulated_debug
 594   PARAMS ((PTR handle, bfd *abfd, struct ecoff_debug_info *debug,
 595            const struct ecoff_debug_swap *swap,
 596            struct bfd_link_info *info, file_ptr where));
 597 extern boolean bfd_mips_ecoff_create_embedded_relocs
 598   PARAMS ((bfd *, struct bfd_link_info *, struct sec *, struct sec *,
 599            char **));
 600
 601 /* Externally visible ELF routines.  */
 602
 603 struct bfd_link_needed_list
 604 {
 605   struct bfd_link_needed_list *next;
 606   bfd *by;
 607   const char *name;
 608 };
 609
 610 extern boolean bfd_elf32_record_link_assignment
 611   PARAMS ((bfd *, struct bfd_link_info *, const char *, boolean));
 612 extern boolean bfd_elf64_record_link_assignment
 613   PARAMS ((bfd *, struct bfd_link_info *, const char *, boolean));
 614 extern struct bfd_link_needed_list *bfd_elf_get_needed_list
 615   PARAMS ((bfd *, struct bfd_link_info *));
 616 extern boolean bfd_elf_get_bfd_needed_list
 617   PARAMS ((bfd *, struct bfd_link_needed_list **));
 618 extern boolean bfd_elf32_size_dynamic_sections
 619   PARAMS ((bfd *, const char *, const char *, boolean, const char *,
 620            const char * const *, struct bfd_link_info *, struct sec **,
 621            struct bfd_elf_version_tree *));
 622 extern boolean bfd_elf64_size_dynamic_sections
 623   PARAMS ((bfd *, const char *, const char *, boolean, const char *,
 624            const char * const *, struct bfd_link_info *, struct sec **,
 625            struct bfd_elf_version_tree *));
 626 extern void bfd_elf_set_dt_needed_name PARAMS ((bfd *, const char *));
 627 extern const char *bfd_elf_get_dt_soname PARAMS ((bfd *));
 628
 629 /* Return an upper bound on the number of bytes required to store a
 630    copy of ABFD's program header table entries.  Return -1 if an error
 631    occurs; bfd_get_error will return an appropriate code.  */
 632 extern long bfd_get_elf_phdr_upper_bound PARAMS ((bfd *abfd));
 633
 634 /* Copy ABFD's program header table entries to *PHDRS.  The entries
 635    will be stored as an array of Elf_Internal_Phdr structures, as
 636    defined in include/elf/internal.h.  To find out how large the
 637    buffer needs to be, call bfd_get_elf_phdr_upper_bound.
 638
 639    Return the number of program header table entries read, or -1 if an
 640    error occurs; bfd_get_error will return an appropriate code.  */
 641 extern int bfd_get_elf_phdrs PARAMS ((bfd *abfd, void *phdrs));
 642
 643 /* Return the arch_size field of an elf bfd, or -1 if not elf.  */
 644 extern int bfd_elf_get_arch_size PARAMS ((bfd *));
 645
 646 /* SunOS shared library support routines for the linker.  */
 647
 648 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list
 649   PARAMS ((bfd *, struct bfd_link_info *));
 650 extern boolean bfd_sunos_record_link_assignment
 651   PARAMS ((bfd *, struct bfd_link_info *, const char *));
 652 extern boolean bfd_sunos_size_dynamic_sections
 653   PARAMS ((bfd *, struct bfd_link_info *, struct sec **, struct sec **,
 654            struct sec **));
 655
 656 /* Linux shared library support routines for the linker.  */
 657
 658 extern boolean bfd_i386linux_size_dynamic_sections
 659   PARAMS ((bfd *, struct bfd_link_info *));
 660 extern boolean bfd_m68klinux_size_dynamic_sections
 661   PARAMS ((bfd *, struct bfd_link_info *));
 662 extern boolean bfd_sparclinux_size_dynamic_sections
 663   PARAMS ((bfd *, struct bfd_link_info *));
 664
 665 /* mmap hacks */
 666
 667 struct _bfd_window_internal;
 668 typedef struct _bfd_window_internal bfd_window_internal;
 669
 670 typedef struct _bfd_window {
 671   /* What the user asked for.  */
 672   PTR data;
 673   bfd_size_type size;
 674   /* The actual window used by BFD.  Small user-requested read-only
 675      regions sharing a page may share a single window into the object
 676      file.  Read-write versions shouldn't until I've fixed things to
 677      keep track of which portions have been claimed by the
 678      application; don't want to give the same region back when the
 679      application wants two writable copies!  */
 680   struct _bfd_window_internal *i;
 681 } bfd_window;
 682
 683 extern void bfd_init_window PARAMS ((bfd_window *));
 684 extern void bfd_free_window PARAMS ((bfd_window *));
 685 extern boolean bfd_get_file_window
 686   PARAMS ((bfd *, file_ptr, bfd_size_type, bfd_window *, boolean));
 687
 688 /* XCOFF support routines for the linker.  */
 689
 690 extern boolean bfd_xcoff_link_record_set
 691   PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
 692            bfd_size_type));
 693 extern boolean bfd_xcoff_import_symbol
 694   PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
 695            bfd_vma, const char *, const char *, const char *));
 696 extern boolean bfd_xcoff_export_symbol
 697   PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
 698            boolean));
 699 extern boolean bfd_xcoff_link_count_reloc
 700   PARAMS ((bfd *, struct bfd_link_info *, const char *));
 701 extern boolean bfd_xcoff_record_link_assignment
 702   PARAMS ((bfd *, struct bfd_link_info *, const char *));
 703 extern boolean bfd_xcoff_size_dynamic_sections
 704   PARAMS ((bfd *, struct bfd_link_info *, const char *, const char *,
 705            unsigned long, unsigned long, unsigned long, boolean,
 706            int, boolean, boolean, struct sec **));
 707
 708 /* Externally visible COFF routines.  */
 709
 710 #if defined(__STDC__) || defined(ALMOST_STDC)
 711 struct internal_syment;
 712 union internal_auxent;
 713 #endif
 714
 715 extern boolean bfd_coff_get_syment
 716   PARAMS ((bfd *, struct symbol_cache_entry *, struct internal_syment *));
 717
 718 extern boolean bfd_coff_get_auxent
 719   PARAMS ((bfd *, struct symbol_cache_entry *, int, union internal_auxent *));
 720
 721 extern boolean bfd_coff_set_symbol_class
 722   PARAMS ((bfd *, struct symbol_cache_entry *, unsigned int));
 723
 724 /* ARM Interworking support.  Called from linker.  */
 725 extern boolean bfd_arm_allocate_interworking_sections
 726   PARAMS ((struct bfd_link_info *));
 727
 728 extern boolean bfd_arm_process_before_allocation
 729   PARAMS ((bfd *, struct bfd_link_info *, int));
 730
 731 extern boolean bfd_arm_get_bfd_for_interworking
 732   PARAMS ((bfd *, struct bfd_link_info *));
 733
 734 /* PE ARM Interworking support.  Called from linker.  */
 735 extern boolean bfd_arm_pe_allocate_interworking_sections
 736   PARAMS ((struct bfd_link_info *));
 737
 738 extern boolean bfd_arm_pe_process_before_allocation
 739   PARAMS ((bfd *, struct bfd_link_info *, int));
 740
 741 extern boolean bfd_arm_pe_get_bfd_for_interworking
 742   PARAMS ((bfd *, struct bfd_link_info *));
 743
 744 /* ELF ARM Interworking support.  Called from linker.  */
 745 extern boolean bfd_elf32_arm_allocate_interworking_sections
 746   PARAMS ((struct bfd_link_info *));
 747
 748 extern boolean bfd_elf32_arm_process_before_allocation
 749   PARAMS ((bfd *, struct bfd_link_info *, int));
 750
 751 extern boolean bfd_elf32_arm_get_bfd_for_interworking
 752   PARAMS ((bfd *, struct bfd_link_info *));
 753
 754 /* TI COFF load page support. */
 755 extern void bfd_ticoff_set_section_load_page
 756   PARAMS ((struct sec *, int));
 757
 758 extern int bfd_ticoff_get_section_load_page
 759   PARAMS ((struct sec *));
 760
 761 /* And more from the source.  */
 762 void
 763 bfd_init PARAMS ((void));
 764
 765 bfd *
 766 bfd_openr PARAMS ((CONST char *filename, CONST char *target));
 767
 768 bfd *
 769 bfd_fdopenr PARAMS ((CONST char *filename, CONST char *target, int fd));
 770
 771 bfd *
 772 bfd_openstreamr PARAMS ((const char *, const char *, PTR));
 773
 774 bfd *
 775 bfd_openw PARAMS ((CONST char *filename, CONST char *target));
 776
 777 boolean
 778 bfd_close PARAMS ((bfd *abfd));
 779
 780 boolean
 781 bfd_close_all_done PARAMS ((bfd *));
 782
 783 bfd *
 784 bfd_create PARAMS ((CONST char *filename, bfd *templ));
 785
 786 boolean
 787 bfd_make_writable PARAMS ((bfd *abfd));
 788
 789 boolean
 790 bfd_make_readable PARAMS ((bfd *abfd));
 791
 792
 793  /* Byte swapping macros for user section data.  */
 794
 795 #define bfd_put_8(abfd, val, ptr) \
 796                 ((void) (*((unsigned char *)(ptr)) = (unsigned char)(val)))
 797 #define bfd_put_signed_8 \
 798                bfd_put_8
 799 #define bfd_get_8(abfd, ptr) \
 800                 (*(unsigned char *)(ptr))
 801 #define bfd_get_signed_8(abfd, ptr) \
 802                ((*(unsigned char *)(ptr) ^ 0x80) - 0x80)
 803
 804 #define bfd_put_16(abfd, val, ptr) \
 805                 BFD_SEND(abfd, bfd_putx16, ((val),(ptr)))
 806 #define bfd_put_signed_16 \
 807                 bfd_put_16
 808 #define bfd_get_16(abfd, ptr) \
 809                 BFD_SEND(abfd, bfd_getx16, (ptr))
 810 #define bfd_get_signed_16(abfd, ptr) \
 811                 BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
 812
 813 #define bfd_put_32(abfd, val, ptr) \
 814                 BFD_SEND(abfd, bfd_putx32, ((val),(ptr)))
 815 #define bfd_put_signed_32 \
 816                 bfd_put_32
 817 #define bfd_get_32(abfd, ptr) \
 818                 BFD_SEND(abfd, bfd_getx32, (ptr))
 819 #define bfd_get_signed_32(abfd, ptr) \
 820                 BFD_SEND(abfd, bfd_getx_signed_32, (ptr))
 821
 822 #define bfd_put_64(abfd, val, ptr) \
 823                 BFD_SEND(abfd, bfd_putx64, ((val), (ptr)))
 824 #define bfd_put_signed_64 \
 825                 bfd_put_64
 826 #define bfd_get_64(abfd, ptr) \
 827                 BFD_SEND(abfd, bfd_getx64, (ptr))
 828 #define bfd_get_signed_64(abfd, ptr) \
 829                 BFD_SEND(abfd, bfd_getx_signed_64, (ptr))
 830
 831 #define bfd_get(bits, abfd, ptr)                               \
 832                 ((bits) == 8 ? bfd_get_8 (abfd, ptr)           \
 833                 : (bits) == 16 ? bfd_get_16 (abfd, ptr)        \
 834                 : (bits) == 32 ? bfd_get_32 (abfd, ptr)        \
 835                 : (bits) == 64 ? bfd_get_64 (abfd, ptr)        \
 836                 : (abort (), (bfd_vma) - 1))
 837
 838 #define bfd_put(bits, abfd, val, ptr)                          \
 839                 ((bits) == 8 ? bfd_put_8 (abfd, val, ptr)      \
 840                 : (bits) == 16 ? bfd_put_16 (abfd, val, ptr)   \
 841                 : (bits) == 32 ? bfd_put_32 (abfd, val, ptr)   \
 842                 : (bits) == 64 ? bfd_put_64 (abfd, val, ptr)   \
 843                 : (abort (), (void) 0))
 844
 845
 846  /* Byte swapping macros for file header data.  */
 847
 848 #define bfd_h_put_8(abfd, val, ptr) \
 849                bfd_put_8 (abfd, val, ptr)
 850 #define bfd_h_put_signed_8(abfd, val, ptr) \
 851                bfd_put_8 (abfd, val, ptr)
 852 #define bfd_h_get_8(abfd, ptr) \
 853                bfd_get_8 (abfd, ptr)
 854 #define bfd_h_get_signed_8(abfd, ptr) \
 855                bfd_get_signed_8 (abfd, ptr)
 856
 857 #define bfd_h_put_16(abfd, val, ptr) \
 858                 BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
 859 #define bfd_h_put_signed_16 \
 860                 bfd_h_put_16
 861 #define bfd_h_get_16(abfd, ptr) \
 862                 BFD_SEND(abfd, bfd_h_getx16,(ptr))
 863 #define bfd_h_get_signed_16(abfd, ptr) \
 864                 BFD_SEND(abfd, bfd_h_getx_signed_16, (ptr))
 865
 866 #define bfd_h_put_32(abfd, val, ptr) \
 867                 BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
 868 #define bfd_h_put_signed_32 \
 869                 bfd_h_put_32
 870 #define bfd_h_get_32(abfd, ptr) \
 871                 BFD_SEND(abfd, bfd_h_getx32,(ptr))
 872 #define bfd_h_get_signed_32(abfd, ptr) \
 873                 BFD_SEND(abfd, bfd_h_getx_signed_32, (ptr))
 874
 875 #define bfd_h_put_64(abfd, val, ptr) \
 876                 BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
 877 #define bfd_h_put_signed_64 \
 878                 bfd_h_put_64
 879 #define bfd_h_get_64(abfd, ptr) \
 880                 BFD_SEND(abfd, bfd_h_getx64,(ptr))
 881 #define bfd_h_get_signed_64(abfd, ptr) \
 882                 BFD_SEND(abfd, bfd_h_getx_signed_64, (ptr))
 883
 884   /* This structure is used for a comdat section, as in PE.  A comdat
 885     section is associated with a particular symbol.  When the linker
 886     sees a comdat section, it keeps only one of the sections with a
 887     given name and associated with a given symbol. */
 888
 889 struct bfd_comdat_info
 890 {
 891    /* The name of the symbol associated with a comdat section.  */
 892   const char *name;
 893
 894    /* The local symbol table index of the symbol associated with a
 895      comdat section.  This is only meaningful to the object file format
 896      specific code; it is not an index into the list returned by
 897      bfd_canonicalize_symtab.  */
 898   long symbol;
 899
 900    /* If this section is being discarded, the linker uses this field
 901      to point to the input section which is being kept.  */
 902   struct sec *sec;
 903 };
 904
 905 typedef struct sec
 906 {
 907          /* The name of the section; the name isn't a copy, the pointer is
 908         the same as that passed to bfd_make_section. */
 909
 910     CONST char *name;
 911
 912          /* Which section is it; 0..nth.      */
 913
 914    int index;
 915
 916          /* The next section in the list belonging to the BFD, or NULL. */
 917
 918     struct sec *next;
 919
 920          /* The field flags contains attributes of the section. Some
 921            flags are read in from the object file, and some are
 922            synthesized from other information.  */
 923
 924     flagword flags;
 925
 926 #define SEC_NO_FLAGS   0x000
 927
 928          /* Tells the OS to allocate space for this section when loading.
 929            This is clear for a section containing debug information
 930            only. */
 931 #define SEC_ALLOC      0x001
 932
 933          /* Tells the OS to load the section from the file when loading.
 934            This is clear for a .bss section. */
 935 #define SEC_LOAD       0x002
 936
 937          /* The section contains data still to be relocated, so there is
 938            some relocation information too. */
 939 #define SEC_RELOC      0x004
 940
 941 #if 0    /* Obsolete ? */
 942 #define SEC_BALIGN     0x008
 943 #endif
 944
 945          /* A signal to the OS that the section contains read only
 946           data. */
 947 #define SEC_READONLY   0x010
 948
 949          /* The section contains code only. */
 950 #define SEC_CODE       0x020
 951
 952          /* The section contains data only. */
 953 #define SEC_DATA       0x040
 954
 955          /* The section will reside in ROM. */
 956 #define SEC_ROM        0x080
 957
 958          /* The section contains constructor information. This section
 959            type is used by the linker to create lists of constructors and
 960            destructors used by <<g++>>. When a back end sees a symbol
 961            which should be used in a constructor list, it creates a new
 962            section for the type of name (e.g., <<__CTOR_LIST__>>), attaches
 963            the symbol to it, and builds a relocation. To build the lists
 964            of constructors, all the linker has to do is catenate all the
 965            sections called <<__CTOR_LIST__>> and relocate the data
 966            contained within - exactly the operations it would peform on
 967            standard data. */
 968 #define SEC_CONSTRUCTOR 0x100
 969
 970          /* The section is a constructor, and should be placed at the
 971           end of the text, data, or bss section(?). */
 972 #define SEC_CONSTRUCTOR_TEXT 0x1100
 973 #define SEC_CONSTRUCTOR_DATA 0x2100
 974 #define SEC_CONSTRUCTOR_BSS  0x3100
 975
 976          /* The section has contents - a data section could be
 977            <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>; a debug section could be
 978            <<SEC_HAS_CONTENTS>> */
 979 #define SEC_HAS_CONTENTS 0x200
 980
 981          /* An instruction to the linker to not output the section
 982            even if it has information which would normally be written. */
 983 #define SEC_NEVER_LOAD 0x400
 984
 985          /* The section is a COFF shared library section.  This flag is
 986            only for the linker.  If this type of section appears in
 987            the input file, the linker must copy it to the output file
 988            without changing the vma or size.  FIXME: Although this
 989            was originally intended to be general, it really is COFF
 990            specific (and the flag was renamed to indicate this).  It
 991            might be cleaner to have some more general mechanism to
 992            allow the back end to control what the linker does with
 993            sections. */
 994 #define SEC_COFF_SHARED_LIBRARY 0x800
 995
 996          /* The section contains common symbols (symbols may be defined
 997            multiple times, the value of a symbol is the amount of
 998            space it requires, and the largest symbol value is the one
 999            used).  Most targets have exactly one of these (which we
1000            translate to bfd_com_section_ptr), but ECOFF has two. */
1001 #define SEC_IS_COMMON 0x8000
1002
1003          /* The section contains only debugging information.  For
1004            example, this is set for ELF .debug and .stab sections.
1005            strip tests this flag to see if a section can be
1006            discarded. */
1007 #define SEC_DEBUGGING 0x10000
1008
1009          /* The contents of this section are held in memory pointed to
1010            by the contents field.  This is checked by
1011            bfd_get_section_contents, and the data is retrieved from
1012            memory if appropriate.  */
1013 #define SEC_IN_MEMORY 0x20000
1014
1015          /* The contents of this section are to be excluded by the
1016            linker for executable and shared objects unless those
1017            objects are to be further relocated.  */
1018 #define SEC_EXCLUDE 0x40000
1019
1020         /* The contents of this section are to be sorted by the
1021           based on the address specified in the associated symbol
1022           table.  */
1023 #define SEC_SORT_ENTRIES 0x80000
1024
1025         /* When linking, duplicate sections of the same name should be
1026           discarded, rather than being combined into a single section as
1027           is usually done.  This is similar to how common symbols are
1028           handled.  See SEC_LINK_DUPLICATES below.  */
1029 #define SEC_LINK_ONCE 0x100000
1030
1031         /* If SEC_LINK_ONCE is set, this bitfield describes how the linker
1032           should handle duplicate sections.  */
1033 #define SEC_LINK_DUPLICATES 0x600000
1034
1035         /* This value for SEC_LINK_DUPLICATES means that duplicate
1036           sections with the same name should simply be discarded. */
1037 #define SEC_LINK_DUPLICATES_DISCARD 0x0
1038
1039         /* This value for SEC_LINK_DUPLICATES means that the linker
1040           should warn if there are any duplicate sections, although
1041           it should still only link one copy.  */
1042 #define SEC_LINK_DUPLICATES_ONE_ONLY 0x200000
1043
1044         /* This value for SEC_LINK_DUPLICATES means that the linker
1045           should warn if any duplicate sections are a different size.  */
1046 #define SEC_LINK_DUPLICATES_SAME_SIZE 0x400000
1047
1048         /* This value for SEC_LINK_DUPLICATES means that the linker
1049           should warn if any duplicate sections contain different
1050           contents.  */
1051 #define SEC_LINK_DUPLICATES_SAME_CONTENTS 0x600000
1052
1053         /* This section was created by the linker as part of dynamic
1054           relocation or other arcane processing.  It is skipped when
1055           going through the first-pass output, trusting that someone
1056           else up the line will take care of it later.  */
1057 #define SEC_LINKER_CREATED 0x800000
1058
1059         /* This section should not be subject to garbage collection.  */
1060 #define SEC_KEEP 0x1000000
1061
1062         /* This section contains "short" data, and should be placed
1063           "near" the GP.  */
1064 #define SEC_SMALL_DATA 0x2000000
1065
1066         /* This section contains data which may be shared with other
1067           executables or shared objects.  */
1068 #define SEC_SHARED 0x4000000
1069
1070         /* When a section with this flag is being linked, then if the size of
1071           the input section is less than a page, it should not cross a page
1072           boundary.  If the size of the input section is one page or more, it
1073           should be aligned on a page boundary.  */
1074 #define SEC_BLOCK 0x8000000
1075
1076         /* Conditionally link this section; do not link if there are no
1077           references found to any symbol in the section.  */
1078 #define SEC_CLINK 0x10000000
1079
1080         /*  End of section flags.  */
1081
1082         /* Some internal packed boolean fields.  */
1083
1084         /* See the vma field.  */
1085        unsigned int user_set_vma : 1;
1086
1087         /* Whether relocations have been processed.  */
1088        unsigned int reloc_done : 1;
1089
1090         /* A mark flag used by some of the linker backends.  */
1091        unsigned int linker_mark : 1;
1092
1093         /* A mark flag used by some linker backends for garbage collection.  */
1094        unsigned int gc_mark : 1;
1095
1096         /* End of internal packed boolean fields.  */
1097
1098         /*  The virtual memory address of the section - where it will be
1099            at run time.  The symbols are relocated against this.  The
1100            user_set_vma flag is maintained by bfd; if it's not set, the
1101            backend can assign addresses (for example, in <<a.out>>, where
1102            the default address for <<.data>> is dependent on the specific
1103            target and various flags).  */
1104
1105    bfd_vma vma;
1106
1107         /*  The load address of the section - where it would be in a
1108            rom image; really only used for writing section header
1109            information. */
1110
1111    bfd_vma lma;
1112
1113          /* The size of the section in octets, as it will be output.
1114            Contains a value even if the section has no contents (e.g., the
1115            size of <<.bss>>).  This will be filled in after relocation.  */
1116
1117    bfd_size_type _cooked_size;
1118
1119          /* The original size on disk of the section, in octets.  Normally this
1120            value is the same as the size, but if some relaxing has
1121            been done, then this value will be bigger.  */
1122
1123    bfd_size_type _raw_size;
1124
1125          /* If this section is going to be output, then this value is the
1126            offset in *bytes* into the output section of the first byte in the
1127            input section (byte ==> smallest addressable unit on the
1128            target).  In most cases, if this was going to start at the
1129            100th octet (8-bit quantity) in the output section, this value
1130            would be 100.  However, if the target byte size is 16 bits
1131            (bfd_octets_per_byte is "2"), this value would be 50. */
1132
1133    bfd_vma output_offset;
1134
1135          /* The output section through which to map on output. */
1136
1137    struct sec *output_section;
1138
1139          /* The alignment requirement of the section, as an exponent of 2 -
1140            e.g., 3 aligns to 2^3 (or 8). */
1141
1142    unsigned int alignment_power;
1143
1144          /* If an input section, a pointer to a vector of relocation
1145            records for the data in this section. */
1146
1147    struct reloc_cache_entry *relocation;
1148
1149          /* If an output section, a pointer to a vector of pointers to
1150            relocation records for the data in this section. */
1151
1152    struct reloc_cache_entry **orelocation;
1153
1154          /* The number of relocation records in one of the above  */
1155
1156    unsigned reloc_count;
1157
1158          /* Information below is back end specific - and not always used
1159            or updated.  */
1160
1161          /* File position of section data    */
1162
1163    file_ptr filepos;
1164
1165          /* File position of relocation info */
1166
1167    file_ptr rel_filepos;
1168
1169          /* File position of line data       */
1170
1171    file_ptr line_filepos;
1172
1173          /* Pointer to data for applications */
1174
1175    PTR userdata;
1176
1177          /* If the SEC_IN_MEMORY flag is set, this points to the actual
1178            contents.  */
1179    unsigned char *contents;
1180
1181          /* Attached line number information */
1182
1183    alent *lineno;
1184
1185          /* Number of line number records   */
1186
1187    unsigned int lineno_count;
1188
1189          /* Optional information about a COMDAT entry; NULL if not COMDAT */
1190
1191    struct bfd_comdat_info *comdat;
1192
1193          /* When a section is being output, this value changes as more
1194            linenumbers are written out */
1195
1196    file_ptr moving_line_filepos;
1197
1198          /* What the section number is in the target world  */
1199
1200    int target_index;
1201
1202    PTR used_by_bfd;
1203
1204          /* If this is a constructor section then here is a list of the
1205            relocations created to relocate items within it. */
1206
1207    struct relent_chain *constructor_chain;
1208
1209          /* The BFD which owns the section. */
1210
1211    bfd *owner;
1212
1213          /* A symbol which points at this section only */
1214    struct symbol_cache_entry *symbol;
1215    struct symbol_cache_entry **symbol_ptr_ptr;
1216
1217    struct bfd_link_order *link_order_head;
1218    struct bfd_link_order *link_order_tail;
1219 } asection ;
1220
1221      /* These sections are global, and are managed by BFD.  The application
1222        and target back end are not permitted to change the values in
1223        these sections.  New code should use the section_ptr macros rather
1224        than referring directly to the const sections.  The const sections
1225        may eventually vanish.  */
1226 #define BFD_ABS_SECTION_NAME "*ABS*"
1227 #define BFD_UND_SECTION_NAME "*UND*"
1228 #define BFD_COM_SECTION_NAME "*COM*"
1229 #define BFD_IND_SECTION_NAME "*IND*"
1230
1231      /* the absolute section */
1232 extern const asection bfd_abs_section;
1233 #define bfd_abs_section_ptr ((asection *) &bfd_abs_section)
1234 #define bfd_is_abs_section(sec) ((sec) == bfd_abs_section_ptr)
1235      /* Pointer to the undefined section */
1236 extern const asection bfd_und_section;
1237 #define bfd_und_section_ptr ((asection *) &bfd_und_section)
1238 #define bfd_is_und_section(sec) ((sec) == bfd_und_section_ptr)
1239      /* Pointer to the common section */
1240 extern const asection bfd_com_section;
1241 #define bfd_com_section_ptr ((asection *) &bfd_com_section)
1242      /* Pointer to the indirect section */
1243 extern const asection bfd_ind_section;
1244 #define bfd_ind_section_ptr ((asection *) &bfd_ind_section)
1245 #define bfd_is_ind_section(sec) ((sec) == bfd_ind_section_ptr)
1246
1247 extern const struct symbol_cache_entry * const bfd_abs_symbol;
1248 extern const struct symbol_cache_entry * const bfd_com_symbol;
1249 extern const struct symbol_cache_entry * const bfd_und_symbol;
1250 extern const struct symbol_cache_entry * const bfd_ind_symbol;
1251 #define bfd_get_section_size_before_reloc(section) \
1252      ((section)->reloc_done ? (abort (), (bfd_size_type) 1) \
1253                             : (section)->_raw_size)
1254 #define bfd_get_section_size_after_reloc(section) \
1255      ((section)->reloc_done ? (section)->_cooked_size \
1256                             : (abort (), (bfd_size_type) 1))
1257 asection *
1258 bfd_get_section_by_name PARAMS ((bfd *abfd, CONST char *name));
1259
1260 asection *
1261 bfd_make_section_old_way PARAMS ((bfd *abfd, CONST char *name));
1262
1263 asection *
1264 bfd_make_section_anyway PARAMS ((bfd *abfd, CONST char *name));
1265
1266 asection *
1267 bfd_make_section PARAMS ((bfd *, CONST char *name));
1268
1269 boolean
1270 bfd_set_section_flags PARAMS ((bfd *abfd, asection *sec, flagword flags));
1271
1272 void
1273 bfd_map_over_sections PARAMS ((bfd *abfd,
1274     void (*func)(bfd *abfd,
1275     asection *sect,
1276     PTR obj),
1277     PTR obj));
1278
1279 boolean
1280 bfd_set_section_size PARAMS ((bfd *abfd, asection *sec, bfd_size_type val));
1281
1282 boolean
1283 bfd_set_section_contents
1284  PARAMS ((bfd *abfd,
1285     asection *section,
1286     PTR data,
1287     file_ptr offset,
1288     bfd_size_type count));
1289
1290 boolean
1291 bfd_get_section_contents
1292  PARAMS ((bfd *abfd, asection *section, PTR location,
1293     file_ptr offset, bfd_size_type count));
1294
1295 boolean
1296 bfd_copy_private_section_data PARAMS ((bfd *ibfd, asection *isec, bfd *obfd, asection *osec));
1297
1298 #define bfd_copy_private_section_data(ibfd, isection, obfd, osection) \
1299      BFD_SEND (obfd, _bfd_copy_private_section_data, \
1300                (ibfd, isection, obfd, osection))
1301 void
1302 _bfd_strip_section_from_output
1303  PARAMS ((struct bfd_link_info *info, asection *section));
1304
1305 enum bfd_architecture
1306 {
1307   bfd_arch_unknown,    /* File arch not known */
1308   bfd_arch_obscure,    /* Arch known, not one of these */
1309   bfd_arch_m68k,       /* Motorola 68xxx */
1310 #define bfd_mach_m68000 1
1311 #define bfd_mach_m68008 2
1312 #define bfd_mach_m68010 3
1313 #define bfd_mach_m68020 4
1314 #define bfd_mach_m68030 5
1315 #define bfd_mach_m68040 6
1316 #define bfd_mach_m68060 7
1317 #define bfd_mach_cpu32  8
1318   bfd_arch_vax,        /* DEC Vax */
1319   bfd_arch_i960,       /* Intel 960 */
1320      /* The order of the following is important.
1321        lower number indicates a machine type that
1322        only accepts a subset of the instructions
1323        available to machines with higher numbers.
1324        The exception is the "ca", which is
1325        incompatible with all other machines except
1326        "core". */
1327
1328 #define bfd_mach_i960_core      1
1329 #define bfd_mach_i960_ka_sa     2
1330 #define bfd_mach_i960_kb_sb     3
1331 #define bfd_mach_i960_mc        4
1332 #define bfd_mach_i960_xa        5
1333 #define bfd_mach_i960_ca        6
1334 #define bfd_mach_i960_jx        7
1335 #define bfd_mach_i960_hx        8
1336
1337   bfd_arch_a29k,       /* AMD 29000 */
1338   bfd_arch_sparc,      /* SPARC */
1339 #define bfd_mach_sparc                 1
1340  /* The difference between v8plus and v9 is that v9 is a true 64 bit env.  */
1341 #define bfd_mach_sparc_sparclet        2
1342 #define bfd_mach_sparc_sparclite       3
1343 #define bfd_mach_sparc_v8plus          4
1344 #define bfd_mach_sparc_v8plusa         5  /* with ultrasparc add'ns */
1345 #define bfd_mach_sparc_sparclite_le    6
1346 #define bfd_mach_sparc_v9              7
1347 #define bfd_mach_sparc_v9a             8  /* with ultrasparc add'ns */
1348  /* Nonzero if MACH has the v9 instruction set.  */
1349 #define bfd_mach_sparc_v9_p(mach) \
1350   ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9a)
1351   bfd_arch_mips,       /* MIPS Rxxxx */
1352 #define bfd_mach_mips3000              3000
1353 #define bfd_mach_mips3900              3900
1354 #define bfd_mach_mips4000              4000
1355 #define bfd_mach_mips4010              4010
1356 #define bfd_mach_mips4100              4100
1357 #define bfd_mach_mips4111              4111
1358 #define bfd_mach_mips4300              4300
1359 #define bfd_mach_mips4400              4400
1360 #define bfd_mach_mips4600              4600
1361 #define bfd_mach_mips4650              4650
1362 #define bfd_mach_mips5000              5000
1363 #define bfd_mach_mips6000              6000
1364 #define bfd_mach_mips8000              8000
1365 #define bfd_mach_mips10000             10000
1366 #define bfd_mach_mips16                16
1367   bfd_arch_i386,       /* Intel 386 */
1368 #define bfd_mach_i386_i386 0
1369 #define bfd_mach_i386_i8086 1
1370 #define bfd_mach_i386_i386_intel_syntax 2
1371   bfd_arch_we32k,      /* AT&T WE32xxx */
1372   bfd_arch_tahoe,      /* CCI/Harris Tahoe */
1373   bfd_arch_i860,       /* Intel 860 */
1374   bfd_arch_i370,       /* IBM 360/370 Mainframes */
1375   bfd_arch_romp,       /* IBM ROMP PC/RT */
1376   bfd_arch_alliant,    /* Alliant */
1377   bfd_arch_convex,     /* Convex */
1378   bfd_arch_m88k,       /* Motorola 88xxx */
1379   bfd_arch_pyramid,    /* Pyramid Technology */
1380   bfd_arch_h8300,      /* Hitachi H8/300 */
1381 #define bfd_mach_h8300   1
1382 #define bfd_mach_h8300h  2
1383 #define bfd_mach_h8300s  3
1384   bfd_arch_powerpc,    /* PowerPC */
1385   bfd_arch_rs6000,     /* IBM RS/6000 */
1386   bfd_arch_hppa,       /* HP PA RISC */
1387   bfd_arch_d10v,       /* Mitsubishi D10V */
1388 #define bfd_mach_d10v          0
1389 #define bfd_mach_d10v_ts2      2
1390 #define bfd_mach_d10v_ts3      3
1391   bfd_arch_d30v,       /* Mitsubishi D30V */
1392   bfd_arch_z8k,        /* Zilog Z8000 */
1393 #define bfd_mach_z8001         1
1394 #define bfd_mach_z8002         2
1395   bfd_arch_h8500,      /* Hitachi H8/500 */
1396   bfd_arch_sh,         /* Hitachi SH */
1397 #define bfd_mach_sh            0
1398 #define bfd_mach_sh2        0x20
1399 #define bfd_mach_sh_dsp     0x2d
1400 #define bfd_mach_sh3        0x30
1401 #define bfd_mach_sh3_dsp    0x3d
1402 #define bfd_mach_sh3e       0x3e
1403 #define bfd_mach_sh4        0x40
1404   bfd_arch_alpha,      /* Dec Alpha */
1405 #define bfd_mach_alpha_ev4  0x10
1406 #define bfd_mach_alpha_ev5  0x20
1407 #define bfd_mach_alpha_ev6  0x30
1408   bfd_arch_arm,        /* Advanced Risc Machines ARM */
1409 #define bfd_mach_arm_2         1
1410 #define bfd_mach_arm_2a        2
1411 #define bfd_mach_arm_3         3
1412 #define bfd_mach_arm_3M        4
1413 #define bfd_mach_arm_4         5
1414 #define bfd_mach_arm_4T        6
1415 #define bfd_mach_arm_5         7
1416 #define bfd_mach_arm_5T        8
1417   bfd_arch_ns32k,      /* National Semiconductors ns32000 */
1418   bfd_arch_w65,        /* WDC 65816 */
1419   bfd_arch_tic30,      /* Texas Instruments TMS320C30 */
1420   bfd_arch_tic54x,     /* Texas Instruments TMS320C54X */
1421   bfd_arch_tic80,      /* TI TMS320c80 (MVP) */
1422   bfd_arch_v850,       /* NEC V850 */
1423 #define bfd_mach_v850          0
1424 #define bfd_mach_v850e         'E'
1425 #define bfd_mach_v850ea        'A'
1426   bfd_arch_arc,        /* Argonaut RISC Core */
1427 #define bfd_mach_arc_base 0
1428   bfd_arch_m32r,       /* Mitsubishi M32R/D */
1429 #define bfd_mach_m32r          0  /* backwards compatibility */
1430 #define bfd_mach_m32rx         'x'
1431   bfd_arch_mn10200,    /* Matsushita MN10200 */
1432   bfd_arch_mn10300,    /* Matsushita MN10300 */
1433 #define bfd_mach_mn10300               300
1434 #define bfd_mach_am33          330
1435   bfd_arch_fr30,
1436 #define bfd_mach_fr30          0x46523330
1437   bfd_arch_mcore,
1438   bfd_arch_ia64,       /* HP/Intel ia64 */
1439   bfd_arch_pj,
1440   bfd_arch_avr,        /* Atmel AVR microcontrollers */
1441 #define bfd_mach_avr1          1
1442 #define bfd_mach_avr2          2
1443 #define bfd_mach_avr3          3
1444 #define bfd_mach_avr4          4
1445   bfd_arch_last
1446   };
1447
1448 typedef struct bfd_arch_info
1449 {
1450   int bits_per_word;
1451   int bits_per_address;
1452   int bits_per_byte;
1453   enum bfd_architecture arch;
1454   unsigned long mach;
1455   const char *arch_name;
1456   const char *printable_name;
1457   unsigned int section_align_power;
1458   /* true if this is the default machine for the architecture */
1459   boolean the_default;
1460   const struct bfd_arch_info * (*compatible)
1461        PARAMS ((const struct bfd_arch_info *a,
1462                 const struct bfd_arch_info *b));
1463
1464   boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
1465
1466   const struct bfd_arch_info *next;
1467 } bfd_arch_info_type;
1468 const char *
1469 bfd_printable_name PARAMS ((bfd *abfd));
1470
1471 const bfd_arch_info_type *
1472 bfd_scan_arch PARAMS ((const char *string));
1473
1474 const char **
1475 bfd_arch_list PARAMS ((void));
1476
1477 const bfd_arch_info_type *
1478 bfd_arch_get_compatible PARAMS ((
1479     const bfd *abfd,
1480     const bfd *bbfd));
1481
1482 void
1483 bfd_set_arch_info PARAMS ((bfd *abfd, const bfd_arch_info_type *arg));
1484
1485 enum bfd_architecture
1486 bfd_get_arch PARAMS ((bfd *abfd));
1487
1488 unsigned long
1489 bfd_get_mach PARAMS ((bfd *abfd));
1490
1491 unsigned int
1492 bfd_arch_bits_per_byte PARAMS ((bfd *abfd));
1493
1494 unsigned int
1495 bfd_arch_bits_per_address PARAMS ((bfd *abfd));
1496
1497 const bfd_arch_info_type *
1498 bfd_get_arch_info PARAMS ((bfd *abfd));
1499
1500 const bfd_arch_info_type *
1501 bfd_lookup_arch
1502  PARAMS ((enum bfd_architecture
1503     arch,
1504     unsigned long machine));
1505
1506 const char *
1507 bfd_printable_arch_mach
1508  PARAMS ((enum bfd_architecture arch, unsigned long machine));
1509
1510 unsigned int
1511 bfd_octets_per_byte PARAMS ((bfd *abfd));
1512
1513 unsigned int
1514 bfd_arch_mach_octets_per_byte PARAMS ((enum bfd_architecture arch,
1515     unsigned long machine));
1516
1517 typedef enum bfd_reloc_status
1518 {
1519         /* No errors detected */
1520   bfd_reloc_ok,
1521
1522         /* The relocation was performed, but there was an overflow. */
1523   bfd_reloc_overflow,
1524
1525         /* The address to relocate was not within the section supplied. */
1526   bfd_reloc_outofrange,
1527
1528         /* Used by special functions */
1529   bfd_reloc_continue,
1530
1531         /* Unsupported relocation size requested. */
1532   bfd_reloc_notsupported,
1533
1534         /* Unused */
1535   bfd_reloc_other,
1536
1537         /* The symbol to relocate against was undefined. */
1538   bfd_reloc_undefined,
1539
1540         /* The relocation was performed, but may not be ok - presently
1541           generated only when linking i960 coff files with i960 b.out
1542           symbols.  If this type is returned, the error_message argument
1543           to bfd_perform_relocation will be set.  */
1544   bfd_reloc_dangerous
1545  }
1546  bfd_reloc_status_type;
1547
1548
1549 typedef struct reloc_cache_entry
1550 {
1551         /* A pointer into the canonical table of pointers  */
1552   struct symbol_cache_entry **sym_ptr_ptr;
1553
1554         /* offset in section */
1555   bfd_size_type address;
1556
1557         /* addend for relocation value */
1558   bfd_vma addend;
1559
1560         /* Pointer to how to perform the required relocation */
1561   reloc_howto_type *howto;
1562
1563 } arelent;
1564 enum complain_overflow
1565 {
1566         /* Do not complain on overflow. */
1567   complain_overflow_dont,
1568
1569         /* Complain if the bitfield overflows, whether it is considered
1570           as signed or unsigned. */
1571   complain_overflow_bitfield,
1572
1573         /* Complain if the value overflows when considered as signed
1574           number. */
1575   complain_overflow_signed,
1576
1577         /* Complain if the value overflows when considered as an
1578           unsigned number. */
1579   complain_overflow_unsigned
1580 };
1581
1582 struct reloc_howto_struct
1583 {
1584         /*  The type field has mainly a documentary use - the back end can
1585            do what it wants with it, though normally the back end's
1586            external idea of what a reloc number is stored
1587            in this field. For example, a PC relative word relocation
1588            in a coff environment has the type 023 - because that's
1589            what the outside world calls a R_PCRWORD reloc. */
1590   unsigned int type;
1591
1592         /*  The value the final relocation is shifted right by. This drops
1593            unwanted data from the relocation.  */
1594   unsigned int rightshift;
1595
1596         /*  The size of the item to be relocated.  This is *not* a
1597            power-of-two measure.  To get the number of bytes operated
1598            on by a type of relocation, use bfd_get_reloc_size.  */
1599   int size;
1600
1601         /*  The number of bits in the item to be relocated.  This is used
1602            when doing overflow checking.  */
1603   unsigned int bitsize;
1604
1605         /*  Notes that the relocation is relative to the location in the
1606            data section of the addend. The relocation function will
1607            subtract from the relocation value the address of the location
1608            being relocated. */
1609   boolean pc_relative;
1610
1611         /*  The bit position of the reloc value in the destination.
1612            The relocated value is left shifted by this amount. */
1613   unsigned int bitpos;
1614
1615         /* What type of overflow error should be checked for when
1616           relocating. */
1617   enum complain_overflow complain_on_overflow;
1618
1619         /* If this field is non null, then the supplied function is
1620           called rather than the normal function. This allows really
1621           strange relocation methods to be accomodated (e.g., i960 callj
1622           instructions). */
1623   bfd_reloc_status_type (*special_function)
1624                                    PARAMS ((bfd *abfd,
1625                                             arelent *reloc_entry,
1626                                             struct symbol_cache_entry *symbol,
1627                                             PTR data,
1628                                             asection *input_section,
1629                                             bfd *output_bfd,
1630                                             char **error_message));
1631
1632         /* The textual name of the relocation type. */
1633   char *name;
1634
1635         /* Some formats record a relocation addend in the section contents
1636           rather than with the relocation.  For ELF formats this is the
1637           distinction between USE_REL and USE_RELA (though the code checks
1638           for USE_REL == 1/0).  The value of this field is TRUE if the
1639           addend is recorded with the section contents; when performing a
1640           partial link (ld -r) the section contents (the data) will be
1641           modified.  The value of this field is FALSE if addends are
1642           recorded with the relocation (in arelent.addend); when performing
1643           a partial link the relocation will be modified.
1644           All relocations for all ELF USE_RELA targets should set this field
1645           to FALSE (values of TRUE should be looked on with suspicion).
1646           However, the converse is not true: not all relocations of all ELF
1647           USE_REL targets set this field to TRUE.  Why this is so is peculiar
1648           to each particular target.  For relocs that aren't used in partial
1649           links (e.g. GOT stuff) it doesn't matter what this is set to.  */
1650   boolean partial_inplace;
1651
1652         /* The src_mask selects which parts of the read in data
1653           are to be used in the relocation sum.  E.g., if this was an 8 bit
1654           byte of data which we read and relocated, this would be
1655           0x000000ff. When we have relocs which have an addend, such as
1656           sun4 extended relocs, the value in the offset part of a
1657           relocating field is garbage so we never use it. In this case
1658           the mask would be 0x00000000. */
1659   bfd_vma src_mask;
1660
1661         /* The dst_mask selects which parts of the instruction are replaced
1662           into the instruction. In most cases src_mask == dst_mask,
1663           except in the above special case, where dst_mask would be
1664           0x000000ff, and src_mask would be 0x00000000.   */
1665   bfd_vma dst_mask;
1666
1667         /* When some formats create PC relative instructions, they leave
1668           the value of the pc of the place being relocated in the offset
1669           slot of the instruction, so that a PC relative relocation can
1670           be made just by adding in an ordinary offset (e.g., sun3 a.out).
1671           Some formats leave the displacement part of an instruction
1672           empty (e.g., m88k bcs); this flag signals the fact.*/
1673   boolean pcrel_offset;
1674
1675 };
1676 #define HOWTO(C, R,S,B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
1677   {(unsigned)C,R,S,B, P, BI, O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC}
1678 #define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,complain_overflow_dont,FUNCTION, NAME,false,0,0,IN)
1679
1680 #define EMPTY_HOWTO(C) \
1681   HOWTO((C),0,0,0,false,0,complain_overflow_dont,NULL,NULL,false,0,0,false)
1682
1683 #define HOWTO_PREPARE(relocation, symbol)      \
1684   {                                            \
1685   if (symbol != (asymbol *)NULL) {             \
1686     if (bfd_is_com_section (symbol->section)) { \
1687       relocation = 0;                          \
1688     }                                          \
1689     else {                                     \
1690       relocation = symbol->value;              \
1691     }                                          \
1692   }                                            \
1693 }
1694 unsigned int
1695 bfd_get_reloc_size  PARAMS ((reloc_howto_type *));
1696
1697 typedef struct relent_chain {
1698   arelent relent;
1699   struct   relent_chain *next;
1700 } arelent_chain;
1701 bfd_reloc_status_type
1702
1703 bfd_check_overflow
1704  PARAMS ((enum complain_overflow how,
1705     unsigned int bitsize,
1706     unsigned int rightshift,
1707     unsigned int addrsize,
1708     bfd_vma relocation));
1709
1710 bfd_reloc_status_type
1711
1712 bfd_perform_relocation
1713  PARAMS ((bfd *abfd,
1714     arelent *reloc_entry,
1715     PTR data,
1716     asection *input_section,
1717     bfd *output_bfd,
1718     char **error_message));
1719
1720 bfd_reloc_status_type
1721
1722 bfd_install_relocation
1723  PARAMS ((bfd *abfd,
1724     arelent *reloc_entry,
1725     PTR data, bfd_vma data_start,
1726     asection *input_section,
1727     char **error_message));
1728
1729 enum bfd_reloc_code_real {
1730   _dummy_first_bfd_reloc_code_real,
1731
1732
1733 /* Basic absolute relocations of N bits. */
1734   BFD_RELOC_64,
1735   BFD_RELOC_32,
1736   BFD_RELOC_26,
1737   BFD_RELOC_24,
1738   BFD_RELOC_16,
1739   BFD_RELOC_14,
1740   BFD_RELOC_8,
1741
1742 /* PC-relative relocations.  Sometimes these are relative to the address
1743 of the relocation itself; sometimes they are relative to the start of
1744 the section containing the relocation.  It depends on the specific target.
1745
1746 The 24-bit relocation is used in some Intel 960 configurations. */
1747   BFD_RELOC_64_PCREL,
1748   BFD_RELOC_32_PCREL,
1749   BFD_RELOC_24_PCREL,
1750   BFD_RELOC_16_PCREL,
1751   BFD_RELOC_12_PCREL,
1752   BFD_RELOC_8_PCREL,
1753
1754 /* For ELF. */
1755   BFD_RELOC_32_GOT_PCREL,
1756   BFD_RELOC_16_GOT_PCREL,
1757   BFD_RELOC_8_GOT_PCREL,
1758   BFD_RELOC_32_GOTOFF,
1759   BFD_RELOC_16_GOTOFF,
1760   BFD_RELOC_LO16_GOTOFF,
1761   BFD_RELOC_HI16_GOTOFF,
1762   BFD_RELOC_HI16_S_GOTOFF,
1763   BFD_RELOC_8_GOTOFF,
1764   BFD_RELOC_32_PLT_PCREL,
1765   BFD_RELOC_24_PLT_PCREL,
1766   BFD_RELOC_16_PLT_PCREL,
1767   BFD_RELOC_8_PLT_PCREL,
1768   BFD_RELOC_32_PLTOFF,
1769   BFD_RELOC_16_PLTOFF,
1770   BFD_RELOC_LO16_PLTOFF,
1771   BFD_RELOC_HI16_PLTOFF,
1772   BFD_RELOC_HI16_S_PLTOFF,
1773   BFD_RELOC_8_PLTOFF,
1774
1775 /* Relocations used by 68K ELF. */
1776   BFD_RELOC_68K_GLOB_DAT,
1777   BFD_RELOC_68K_JMP_SLOT,
1778   BFD_RELOC_68K_RELATIVE,
1779
1780 /* Linkage-table relative. */
1781   BFD_RELOC_32_BASEREL,
1782   BFD_RELOC_16_BASEREL,
1783   BFD_RELOC_LO16_BASEREL,
1784   BFD_RELOC_HI16_BASEREL,
1785   BFD_RELOC_HI16_S_BASEREL,
1786   BFD_RELOC_8_BASEREL,
1787   BFD_RELOC_RVA,
1788
1789 /* Absolute 8-bit relocation, but used to form an address like 0xFFnn. */
1790   BFD_RELOC_8_FFnn,
1791
1792 /* These PC-relative relocations are stored as word displacements --
1793 i.e., byte displacements shifted right two bits.  The 30-bit word
1794 displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the
1795 SPARC.  (SPARC tools generally refer to this as <<WDISP30>>.)  The
1796 signed 16-bit displacement is used on the MIPS, and the 23-bit
1797 displacement is used on the Alpha. */
1798   BFD_RELOC_32_PCREL_S2,
1799   BFD_RELOC_16_PCREL_S2,
1800   BFD_RELOC_23_PCREL_S2,
1801
1802 /* High 22 bits and low 10 bits of 32-bit value, placed into lower bits of
1803 the target word.  These are used on the SPARC. */
1804   BFD_RELOC_HI22,
1805   BFD_RELOC_LO10,
1806
1807 /* For systems that allocate a Global Pointer register, these are
1808 displacements off that register.  These relocation types are
1809 handled specially, because the value the register will have is
1810 decided relatively late. */
1811   BFD_RELOC_GPREL16,
1812   BFD_RELOC_GPREL32,
1813
1814 /* Reloc types used for i960/b.out. */
1815   BFD_RELOC_I960_CALLJ,
1816
1817 /* SPARC ELF relocations.  There is probably some overlap with other
1818 relocation types already defined. */
1819   BFD_RELOC_NONE,
1820   BFD_RELOC_SPARC_WDISP22,
1821   BFD_RELOC_SPARC22,
1822   BFD_RELOC_SPARC13,
1823   BFD_RELOC_SPARC_GOT10,
1824   BFD_RELOC_SPARC_GOT13,
1825   BFD_RELOC_SPARC_GOT22,
1826   BFD_RELOC_SPARC_PC10,
1827   BFD_RELOC_SPARC_PC22,
1828   BFD_RELOC_SPARC_WPLT30,
1829   BFD_RELOC_SPARC_COPY,
1830   BFD_RELOC_SPARC_GLOB_DAT,
1831   BFD_RELOC_SPARC_JMP_SLOT,
1832   BFD_RELOC_SPARC_RELATIVE,
1833   BFD_RELOC_SPARC_UA32,
1834
1835 /* I think these are specific to SPARC a.out (e.g., Sun 4). */
1836   BFD_RELOC_SPARC_BASE13,
1837   BFD_RELOC_SPARC_BASE22,
1838
1839 /* SPARC64 relocations */
1840 #define BFD_RELOC_SPARC_64 BFD_RELOC_64
1841   BFD_RELOC_SPARC_10,
1842   BFD_RELOC_SPARC_11,
1843   BFD_RELOC_SPARC_OLO10,
1844   BFD_RELOC_SPARC_HH22,
1845   BFD_RELOC_SPARC_HM10,
1846   BFD_RELOC_SPARC_LM22,
1847   BFD_RELOC_SPARC_PC_HH22,
1848   BFD_RELOC_SPARC_PC_HM10,
1849   BFD_RELOC_SPARC_PC_LM22,
1850   BFD_RELOC_SPARC_WDISP16,
1851   BFD_RELOC_SPARC_WDISP19,
1852   BFD_RELOC_SPARC_7,
1853   BFD_RELOC_SPARC_6,
1854   BFD_RELOC_SPARC_5,
1855 #define BFD_RELOC_SPARC_DISP64 BFD_RELOC_64_PCREL
1856   BFD_RELOC_SPARC_PLT64,
1857   BFD_RELOC_SPARC_HIX22,
1858   BFD_RELOC_SPARC_LOX10,
1859   BFD_RELOC_SPARC_H44,
1860   BFD_RELOC_SPARC_M44,
1861   BFD_RELOC_SPARC_L44,
1862   BFD_RELOC_SPARC_REGISTER,
1863
1864 /* SPARC little endian relocation */
1865   BFD_RELOC_SPARC_REV32,
1866
1867 /* Alpha ECOFF and ELF relocations.  Some of these treat the symbol or
1868 "addend" in some special way.
1869 For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1870 writing; when reading, it will be the absolute section symbol.  The
1871 addend is the displacement in bytes of the "lda" instruction from
1872 the "ldah" instruction (which is at the address of this reloc). */
1873   BFD_RELOC_ALPHA_GPDISP_HI16,
1874
1875 /* For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1876 with GPDISP_HI16 relocs.  The addend is ignored when writing the
1877 relocations out, and is filled in with the file's GP value on
1878 reading, for convenience. */
1879   BFD_RELOC_ALPHA_GPDISP_LO16,
1880
1881 /* The ELF GPDISP relocation is exactly the same as the GPDISP_HI16
1882 relocation except that there is no accompanying GPDISP_LO16
1883 relocation. */
1884   BFD_RELOC_ALPHA_GPDISP,
1885
1886 /* The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1887 the assembler turns it into a LDQ instruction to load the address of
1888 the symbol, and then fills in a register in the real instruction.
1889
1890 The LITERAL reloc, at the LDQ instruction, refers to the .lita
1891 section symbol.  The addend is ignored when writing, but is filled
1892 in with the file's GP value on reading, for convenience, as with the
1893 GPDISP_LO16 reloc.
1894
1895 The ELF_LITERAL reloc is somewhere between 16_GOTOFF and GPDISP_LO16.
1896 It should refer to the symbol to be referenced, as with 16_GOTOFF,
1897 but it generates output not based on the position within the .got
1898 section, but relative to the GP value chosen for the file during the
1899 final link stage.
1900
1901 The LITUSE reloc, on the instruction using the loaded address, gives
1902 information to the linker that it might be able to use to optimize
1903 away some literal section references.  The symbol is ignored (read
1904 as the absolute section symbol), and the "addend" indicates the type
1905 of instruction using the register:
1906 1 - "memory" fmt insn
1907 2 - byte-manipulation (byte offset reg)
1908 3 - jsr (target of branch)
1909
1910 The GNU linker currently doesn't do any of this optimizing. */
1911   BFD_RELOC_ALPHA_LITERAL,
1912   BFD_RELOC_ALPHA_ELF_LITERAL,
1913   BFD_RELOC_ALPHA_LITUSE,
1914
1915 /* The BFD_RELOC_ALPHA_USER_* relocations are used by the assembler to
1916 process the explicit !<reloc>!sequence relocations, and are mapped
1917 into the normal relocations at the end of processing. */
1918   BFD_RELOC_ALPHA_USER_LITERAL,
1919   BFD_RELOC_ALPHA_USER_LITUSE_BASE,
1920   BFD_RELOC_ALPHA_USER_LITUSE_BYTOFF,
1921   BFD_RELOC_ALPHA_USER_LITUSE_JSR,
1922   BFD_RELOC_ALPHA_USER_GPDISP,
1923   BFD_RELOC_ALPHA_USER_GPRELHIGH,
1924   BFD_RELOC_ALPHA_USER_GPRELLOW,
1925
1926 /* The HINT relocation indicates a value that should be filled into the
1927 "hint" field of a jmp/jsr/ret instruction, for possible branch-
1928 prediction logic which may be provided on some processors. */
1929   BFD_RELOC_ALPHA_HINT,
1930
1931 /* The LINKAGE relocation outputs a linkage pair in the object file,
1932 which is filled by the linker. */
1933   BFD_RELOC_ALPHA_LINKAGE,
1934
1935 /* The CODEADDR relocation outputs a STO_CA in the object file,
1936 which is filled by the linker. */
1937   BFD_RELOC_ALPHA_CODEADDR,
1938
1939 /* Bits 27..2 of the relocation address shifted right 2 bits;
1940 simple reloc otherwise. */
1941   BFD_RELOC_MIPS_JMP,
1942
1943 /* The MIPS16 jump instruction. */
1944   BFD_RELOC_MIPS16_JMP,
1945
1946 /* MIPS16 GP relative reloc. */
1947   BFD_RELOC_MIPS16_GPREL,
1948
1949 /* High 16 bits of 32-bit value; simple reloc. */
1950   BFD_RELOC_HI16,
1951
1952 /* High 16 bits of 32-bit value but the low 16 bits will be sign
1953 extended and added to form the final result.  If the low 16
1954 bits form a negative number, we need to add one to the high value
1955 to compensate for the borrow when the low bits are added. */
1956   BFD_RELOC_HI16_S,
1957
1958 /* Low 16 bits. */
1959   BFD_RELOC_LO16,
1960
1961 /* Like BFD_RELOC_HI16_S, but PC relative. */
1962   BFD_RELOC_PCREL_HI16_S,
1963
1964 /* Like BFD_RELOC_LO16, but PC relative. */
1965   BFD_RELOC_PCREL_LO16,
1966
1967 /* Relocation relative to the global pointer. */
1968 #define BFD_RELOC_MIPS_GPREL BFD_RELOC_GPREL16
1969
1970 /* Relocation against a MIPS literal section. */
1971   BFD_RELOC_MIPS_LITERAL,
1972
1973 /* MIPS ELF relocations. */
1974   BFD_RELOC_MIPS_GOT16,
1975   BFD_RELOC_MIPS_CALL16,
1976 #define BFD_RELOC_MIPS_GPREL32 BFD_RELOC_GPREL32
1977   BFD_RELOC_MIPS_GOT_HI16,
1978   BFD_RELOC_MIPS_GOT_LO16,
1979   BFD_RELOC_MIPS_CALL_HI16,
1980   BFD_RELOC_MIPS_CALL_LO16,
1981   BFD_RELOC_MIPS_SUB,
1982   BFD_RELOC_MIPS_GOT_PAGE,
1983   BFD_RELOC_MIPS_GOT_OFST,
1984   BFD_RELOC_MIPS_GOT_DISP,
1985
1986
1987 /* i386/elf relocations */
1988   BFD_RELOC_386_GOT32,
1989   BFD_RELOC_386_PLT32,
1990   BFD_RELOC_386_COPY,
1991   BFD_RELOC_386_GLOB_DAT,
1992   BFD_RELOC_386_JUMP_SLOT,
1993   BFD_RELOC_386_RELATIVE,
1994   BFD_RELOC_386_GOTOFF,
1995   BFD_RELOC_386_GOTPC,
1996
1997 /* ns32k relocations */
1998   BFD_RELOC_NS32K_IMM_8,
1999   BFD_RELOC_NS32K_IMM_16,
2000   BFD_RELOC_NS32K_IMM_32,
2001   BFD_RELOC_NS32K_IMM_8_PCREL,
2002   BFD_RELOC_NS32K_IMM_16_PCREL,
2003   BFD_RELOC_NS32K_IMM_32_PCREL,
2004   BFD_RELOC_NS32K_DISP_8,
2005   BFD_RELOC_NS32K_DISP_16,
2006   BFD_RELOC_NS32K_DISP_32,
2007   BFD_RELOC_NS32K_DISP_8_PCREL,
2008   BFD_RELOC_NS32K_DISP_16_PCREL,
2009   BFD_RELOC_NS32K_DISP_32_PCREL,
2010
2011 /* Picojava relocs.  Not all of these appear in object files. */
2012   BFD_RELOC_PJ_CODE_HI16,
2013   BFD_RELOC_PJ_CODE_LO16,
2014   BFD_RELOC_PJ_CODE_DIR16,
2015   BFD_RELOC_PJ_CODE_DIR32,
2016   BFD_RELOC_PJ_CODE_REL16,
2017   BFD_RELOC_PJ_CODE_REL32,
2018
2019 /* Power(rs6000) and PowerPC relocations. */
2020   BFD_RELOC_PPC_B26,
2021   BFD_RELOC_PPC_BA26,
2022   BFD_RELOC_PPC_TOC16,
2023   BFD_RELOC_PPC_B16,
2024   BFD_RELOC_PPC_B16_BRTAKEN,
2025   BFD_RELOC_PPC_B16_BRNTAKEN,
2026   BFD_RELOC_PPC_BA16,
2027   BFD_RELOC_PPC_BA16_BRTAKEN,
2028   BFD_RELOC_PPC_BA16_BRNTAKEN,
2029   BFD_RELOC_PPC_COPY,
2030   BFD_RELOC_PPC_GLOB_DAT,
2031   BFD_RELOC_PPC_JMP_SLOT,
2032   BFD_RELOC_PPC_RELATIVE,
2033   BFD_RELOC_PPC_LOCAL24PC,
2034   BFD_RELOC_PPC_EMB_NADDR32,
2035   BFD_RELOC_PPC_EMB_NADDR16,
2036   BFD_RELOC_PPC_EMB_NADDR16_LO,
2037   BFD_RELOC_PPC_EMB_NADDR16_HI,
2038   BFD_RELOC_PPC_EMB_NADDR16_HA,
2039   BFD_RELOC_PPC_EMB_SDAI16,
2040   BFD_RELOC_PPC_EMB_SDA2I16,
2041   BFD_RELOC_PPC_EMB_SDA2REL,
2042   BFD_RELOC_PPC_EMB_SDA21,
2043   BFD_RELOC_PPC_EMB_MRKREF,
2044   BFD_RELOC_PPC_EMB_RELSEC16,
2045   BFD_RELOC_PPC_EMB_RELST_LO,
2046   BFD_RELOC_PPC_EMB_RELST_HI,
2047   BFD_RELOC_PPC_EMB_RELST_HA,
2048   BFD_RELOC_PPC_EMB_BIT_FLD,
2049   BFD_RELOC_PPC_EMB_RELSDA,
2050
2051 /* IBM 370/390 relocations */
2052   BFD_RELOC_I370_D12,
2053
2054 /* The type of reloc used to build a contructor table - at the moment
2055 probably a 32 bit wide absolute relocation, but the target can choose.
2056 It generally does map to one of the other relocation types. */
2057   BFD_RELOC_CTOR,
2058
2059 /* ARM 26 bit pc-relative branch.  The lowest two bits must be zero and are
2060 not stored in the instruction. */
2061   BFD_RELOC_ARM_PCREL_BRANCH,
2062
2063 /* ARM 26 bit pc-relative branch.  The lowest bit must be zero and is
2064 not stored in the instruction.  The 2nd lowest bit comes from a 1 bit
2065 field in the instruction. */
2066   BFD_RELOC_ARM_PCREL_BLX,
2067
2068 /* Thumb 22 bit pc-relative branch.  The lowest bit must be zero and is
2069 not stored in the instruction.  The 2nd lowest bit comes from a 1 bit
2070 field in the instruction. */
2071   BFD_RELOC_THUMB_PCREL_BLX,
2072
2073 /* These relocs are only used within the ARM assembler.  They are not
2074 (at present) written to any object files. */
2075   BFD_RELOC_ARM_IMMEDIATE,
2076   BFD_RELOC_ARM_ADRL_IMMEDIATE,
2077   BFD_RELOC_ARM_OFFSET_IMM,
2078   BFD_RELOC_ARM_SHIFT_IMM,
2079   BFD_RELOC_ARM_SWI,
2080   BFD_RELOC_ARM_MULTI,
2081   BFD_RELOC_ARM_CP_OFF_IMM,
2082   BFD_RELOC_ARM_ADR_IMM,
2083   BFD_RELOC_ARM_LDR_IMM,
2084   BFD_RELOC_ARM_LITERAL,
2085   BFD_RELOC_ARM_IN_POOL,
2086   BFD_RELOC_ARM_OFFSET_IMM8,
2087   BFD_RELOC_ARM_HWLITERAL,
2088   BFD_RELOC_ARM_THUMB_ADD,
2089   BFD_RELOC_ARM_THUMB_IMM,
2090   BFD_RELOC_ARM_THUMB_SHIFT,
2091   BFD_RELOC_ARM_THUMB_OFFSET,
2092   BFD_RELOC_ARM_GOT12,
2093   BFD_RELOC_ARM_GOT32,
2094   BFD_RELOC_ARM_JUMP_SLOT,
2095   BFD_RELOC_ARM_COPY,
2096   BFD_RELOC_ARM_GLOB_DAT,
2097   BFD_RELOC_ARM_PLT32,
2098   BFD_RELOC_ARM_RELATIVE,
2099   BFD_RELOC_ARM_GOTOFF,
2100   BFD_RELOC_ARM_GOTPC,
2101
2102 /* Hitachi SH relocs.  Not all of these appear in object files. */
2103   BFD_RELOC_SH_PCDISP8BY2,
2104   BFD_RELOC_SH_PCDISP12BY2,
2105   BFD_RELOC_SH_IMM4,
2106   BFD_RELOC_SH_IMM4BY2,
2107   BFD_RELOC_SH_IMM4BY4,
2108   BFD_RELOC_SH_IMM8,
2109   BFD_RELOC_SH_IMM8BY2,
2110   BFD_RELOC_SH_IMM8BY4,
2111   BFD_RELOC_SH_PCRELIMM8BY2,
2112   BFD_RELOC_SH_PCRELIMM8BY4,
2113   BFD_RELOC_SH_SWITCH16,
2114   BFD_RELOC_SH_SWITCH32,
2115   BFD_RELOC_SH_USES,
2116   BFD_RELOC_SH_COUNT,
2117   BFD_RELOC_SH_ALIGN,
2118   BFD_RELOC_SH_CODE,
2119   BFD_RELOC_SH_DATA,
2120   BFD_RELOC_SH_LABEL,
2121   BFD_RELOC_SH_LOOP_START,
2122   BFD_RELOC_SH_LOOP_END,
2123
2124 /* Thumb 23-, 12- and 9-bit pc-relative branches.  The lowest bit must
2125 be zero and is not stored in the instruction. */
2126   BFD_RELOC_THUMB_PCREL_BRANCH9,
2127   BFD_RELOC_THUMB_PCREL_BRANCH12,
2128   BFD_RELOC_THUMB_PCREL_BRANCH23,
2129
2130 /* Argonaut RISC Core (ARC) relocs.
2131 ARC 22 bit pc-relative branch.  The lowest two bits must be zero and are
2132 not stored in the instruction.  The high 20 bits are installed in bits 26
2133 through 7 of the instruction. */
2134   BFD_RELOC_ARC_B22_PCREL,
2135
2136 /* ARC 26 bit absolute branch.  The lowest two bits must be zero and are not
2137 stored in the instruction.  The high 24 bits are installed in bits 23
2138 through 0. */
2139   BFD_RELOC_ARC_B26,
2140
2141 /* Mitsubishi D10V relocs.
2142 This is a 10-bit reloc with the right 2 bits
2143 assumed to be 0. */
2144   BFD_RELOC_D10V_10_PCREL_R,
2145
2146 /* Mitsubishi D10V relocs.
2147 This is a 10-bit reloc with the right 2 bits
2148 assumed to be 0.  This is the same as the previous reloc
2149 except it is in the left container, i.e.,
2150 shifted left 15 bits. */
2151   BFD_RELOC_D10V_10_PCREL_L,
2152
2153 /* This is an 18-bit reloc with the right 2 bits
2154 assumed to be 0. */
2155   BFD_RELOC_D10V_18,
2156
2157 /* This is an 18-bit reloc with the right 2 bits
2158 assumed to be 0. */
2159   BFD_RELOC_D10V_18_PCREL,
2160
2161 /* Mitsubishi D30V relocs.
2162 This is a 6-bit absolute reloc. */
2163   BFD_RELOC_D30V_6,
2164
2165 /* This is a 6-bit pc-relative reloc with
2166 the right 3 bits assumed to be 0. */
2167   BFD_RELOC_D30V_9_PCREL,
2168
2169 /* This is a 6-bit pc-relative reloc with
2170 the right 3 bits assumed to be 0. Same
2171 as the previous reloc but on the right side
2172 of the container. */
2173   BFD_RELOC_D30V_9_PCREL_R,
2174
2175 /* This is a 12-bit absolute reloc with the
2176 right 3 bitsassumed to be 0. */
2177   BFD_RELOC_D30V_15,
2178
2179 /* This is a 12-bit pc-relative reloc with
2180 the right 3 bits assumed to be 0. */
2181   BFD_RELOC_D30V_15_PCREL,
2182
2183 /* This is a 12-bit pc-relative reloc with
2184 the right 3 bits assumed to be 0. Same
2185 as the previous reloc but on the right side
2186 of the container. */
2187   BFD_RELOC_D30V_15_PCREL_R,
2188
2189 /* This is an 18-bit absolute reloc with
2190 the right 3 bits assumed to be 0. */
2191   BFD_RELOC_D30V_21,
2192
2193 /* This is an 18-bit pc-relative reloc with
2194 the right 3 bits assumed to be 0. */
2195   BFD_RELOC_D30V_21_PCREL,
2196
2197 /* This is an 18-bit pc-relative reloc with
2198 the right 3 bits assumed to be 0. Same
2199 as the previous reloc but on the right side
2200 of the container. */
2201   BFD_RELOC_D30V_21_PCREL_R,
2202
2203 /* This is a 32-bit absolute reloc. */
2204   BFD_RELOC_D30V_32,
2205
2206 /* This is a 32-bit pc-relative reloc. */
2207   BFD_RELOC_D30V_32_PCREL,
2208
2209 /* Mitsubishi M32R relocs.
2210 This is a 24 bit absolute address. */
2211   BFD_RELOC_M32R_24,
2212
2213 /* This is a 10-bit pc-relative reloc with the right 2 bits assumed to be 0. */
2214   BFD_RELOC_M32R_10_PCREL,
2215
2216 /* This is an 18-bit reloc with the right 2 bits assumed to be 0. */
2217   BFD_RELOC_M32R_18_PCREL,
2218
2219 /* This is a 26-bit reloc with the right 2 bits assumed to be 0. */
2220   BFD_RELOC_M32R_26_PCREL,
2221
2222 /* This is a 16-bit reloc containing the high 16 bits of an address
2223 used when the lower 16 bits are treated as unsigned. */
2224   BFD_RELOC_M32R_HI16_ULO,
2225
2226 /* This is a 16-bit reloc containing the high 16 bits of an address
2227 used when the lower 16 bits are treated as signed. */
2228   BFD_RELOC_M32R_HI16_SLO,
2229
2230 /* This is a 16-bit reloc containing the lower 16 bits of an address. */
2231   BFD_RELOC_M32R_LO16,
2232
2233 /* This is a 16-bit reloc containing the small data area offset for use in
2234 add3, load, and store instructions. */
2235   BFD_RELOC_M32R_SDA16,
2236
2237 /* This is a 9-bit reloc */
2238   BFD_RELOC_V850_9_PCREL,
2239
2240 /* This is a 22-bit reloc */
2241   BFD_RELOC_V850_22_PCREL,
2242
2243 /* This is a 16 bit offset from the short data area pointer. */
2244   BFD_RELOC_V850_SDA_16_16_OFFSET,
2245
2246 /* This is a 16 bit offset (of which only 15 bits are used) from the
2247 short data area pointer. */
2248   BFD_RELOC_V850_SDA_15_16_OFFSET,
2249
2250 /* This is a 16 bit offset from the zero data area pointer. */
2251   BFD_RELOC_V850_ZDA_16_16_OFFSET,
2252
2253 /* This is a 16 bit offset (of which only 15 bits are used) from the
2254 zero data area pointer. */
2255   BFD_RELOC_V850_ZDA_15_16_OFFSET,
2256
2257 /* This is an 8 bit offset (of which only 6 bits are used) from the
2258 tiny data area pointer. */
2259   BFD_RELOC_V850_TDA_6_8_OFFSET,
2260
2261 /* This is an 8bit offset (of which only 7 bits are used) from the tiny
2262 data area pointer. */
2263   BFD_RELOC_V850_TDA_7_8_OFFSET,
2264
2265 /* This is a 7 bit offset from the tiny data area pointer. */
2266   BFD_RELOC_V850_TDA_7_7_OFFSET,
2267
2268 /* This is a 16 bit offset from the tiny data area pointer. */
2269   BFD_RELOC_V850_TDA_16_16_OFFSET,
2270
2271 /* This is a 5 bit offset (of which only 4 bits are used) from the tiny
2272 data area pointer. */
2273   BFD_RELOC_V850_TDA_4_5_OFFSET,
2274
2275 /* This is a 4 bit offset from the tiny data area pointer. */
2276   BFD_RELOC_V850_TDA_4_4_OFFSET,
2277
2278 /* This is a 16 bit offset from the short data area pointer, with the
2279 bits placed non-contigously in the instruction. */
2280   BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET,
2281
2282 /* This is a 16 bit offset from the zero data area pointer, with the
2283 bits placed non-contigously in the instruction. */
2284   BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET,
2285
2286 /* This is a 6 bit offset from the call table base pointer. */
2287   BFD_RELOC_V850_CALLT_6_7_OFFSET,
2288
2289 /* This is a 16 bit offset from the call table base pointer. */
2290   BFD_RELOC_V850_CALLT_16_16_OFFSET,
2291
2292
2293 /* This is a 32bit pcrel reloc for the mn10300, offset by two bytes in the
2294 instruction. */
2295   BFD_RELOC_MN10300_32_PCREL,
2296
2297 /* This is a 16bit pcrel reloc for the mn10300, offset by two bytes in the
2298 instruction. */
2299   BFD_RELOC_MN10300_16_PCREL,
2300
2301 /* This is a 8bit DP reloc for the tms320c30, where the most
2302 significant 8 bits of a 24 bit word are placed into the least
2303 significant 8 bits of the opcode. */
2304   BFD_RELOC_TIC30_LDP,
2305
2306 /* This is a 7bit reloc for the tms320c54x, where the least
2307 significant 7 bits of a 16 bit word are placed into the least
2308 significant 7 bits of the opcode. */
2309   BFD_RELOC_TIC54X_PARTLS7,
2310
2311 /* This is a 9bit DP reloc for the tms320c54x, where the most
2312 significant 9 bits of a 16 bit word are placed into the least
2313 significant 9 bits of the opcode. */
2314   BFD_RELOC_TIC54X_PARTMS9,
2315
2316 /* This is an extended address 23-bit reloc for the tms320c54x. */
2317   BFD_RELOC_TIC54X_23,
2318
2319 /* This is a 16-bit reloc for the tms320c54x, where the least
2320 significant 16 bits of a 23-bit extended address are placed into
2321 the opcode. */
2322   BFD_RELOC_TIC54X_16_OF_23,
2323
2324 /* This is a reloc for the tms320c54x, where the most
2325 significant 7 bits of a 23-bit extended address are placed into
2326 the opcode. */
2327   BFD_RELOC_TIC54X_MS7_OF_23,
2328
2329 /* This is a 48 bit reloc for the FR30 that stores 32 bits. */
2330   BFD_RELOC_FR30_48,
2331
2332 /* This is a 32 bit reloc for the FR30 that stores 20 bits split up into
2333 two sections. */
2334   BFD_RELOC_FR30_20,
2335
2336 /* This is a 16 bit reloc for the FR30 that stores a 6 bit word offset in
2337 4 bits. */
2338   BFD_RELOC_FR30_6_IN_4,
2339
2340 /* This is a 16 bit reloc for the FR30 that stores an 8 bit byte offset
2341 into 8 bits. */
2342   BFD_RELOC_FR30_8_IN_8,
2343
2344 /* This is a 16 bit reloc for the FR30 that stores a 9 bit short offset
2345 into 8 bits. */
2346   BFD_RELOC_FR30_9_IN_8,
2347
2348 /* This is a 16 bit reloc for the FR30 that stores a 10 bit word offset
2349 into 8 bits. */
2350   BFD_RELOC_FR30_10_IN_8,
2351
2352 /* This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative
2353 short offset into 8 bits. */
2354   BFD_RELOC_FR30_9_PCREL,
2355
2356 /* This is a 16 bit reloc for the FR30 that stores a 12 bit pc relative
2357 short offset into 11 bits. */
2358   BFD_RELOC_FR30_12_PCREL,
2359
2360 /* Motorola Mcore relocations. */
2361   BFD_RELOC_MCORE_PCREL_IMM8BY4,
2362   BFD_RELOC_MCORE_PCREL_IMM11BY2,
2363   BFD_RELOC_MCORE_PCREL_IMM4BY2,
2364   BFD_RELOC_MCORE_PCREL_32,
2365   BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2,
2366   BFD_RELOC_MCORE_RVA,
2367
2368 /* This is a 16 bit reloc for the AVR that stores 8 bit pc relative
2369 short offset into 7 bits. */
2370   BFD_RELOC_AVR_7_PCREL,
2371
2372 /* This is a 16 bit reloc for the AVR that stores 13 bit pc relative
2373 short offset into 12 bits. */
2374   BFD_RELOC_AVR_13_PCREL,
2375
2376 /* This is a 16 bit reloc for the AVR that stores 17 bit value (usually
2377 program memory address) into 16 bits. */
2378   BFD_RELOC_AVR_16_PM,
2379
2380 /* This is a 16 bit reloc for the AVR that stores 8 bit value (usually
2381 data memory address) into 8 bit immediate value of LDI insn. */
2382   BFD_RELOC_AVR_LO8_LDI,
2383
2384 /* This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
2385 of data memory address) into 8 bit immediate value of LDI insn. */
2386   BFD_RELOC_AVR_HI8_LDI,
2387
2388 /* This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
2389 of program memory address) into 8 bit immediate value of LDI insn. */
2390   BFD_RELOC_AVR_HH8_LDI,
2391
2392 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2393 (usually data memory address) into 8 bit immediate value of SUBI insn. */
2394   BFD_RELOC_AVR_LO8_LDI_NEG,
2395
2396 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2397 (high 8 bit of data memory address) into 8 bit immediate value of
2398 SUBI insn. */
2399   BFD_RELOC_AVR_HI8_LDI_NEG,
2400
2401 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2402 (most high 8 bit of program memory address) into 8 bit immediate value
2403 of LDI or SUBI insn. */
2404   BFD_RELOC_AVR_HH8_LDI_NEG,
2405
2406 /* This is a 16 bit reloc for the AVR that stores 8 bit value (usually
2407 command address) into 8 bit immediate value of LDI insn. */
2408   BFD_RELOC_AVR_LO8_LDI_PM,
2409
2410 /* This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
2411 of command address) into 8 bit immediate value of LDI insn. */
2412   BFD_RELOC_AVR_HI8_LDI_PM,
2413
2414 /* This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
2415 of command address) into 8 bit immediate value of LDI insn. */
2416   BFD_RELOC_AVR_HH8_LDI_PM,
2417
2418 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2419 (usually command address) into 8 bit immediate value of SUBI insn. */
2420   BFD_RELOC_AVR_LO8_LDI_PM_NEG,
2421
2422 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2423 (high 8 bit of 16 bit command address) into 8 bit immediate value
2424 of SUBI insn. */
2425   BFD_RELOC_AVR_HI8_LDI_PM_NEG,
2426
2427 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2428 (high 6 bit of 22 bit command address) into 8 bit immediate
2429 value of SUBI insn. */
2430   BFD_RELOC_AVR_HH8_LDI_PM_NEG,
2431
2432 /* This is a 32 bit reloc for the AVR that stores 23 bit value
2433 into 22 bits. */
2434   BFD_RELOC_AVR_CALL,
2435
2436 /* These two relocations are used by the linker to determine which of
2437 the entries in a C++ virtual function table are actually used.  When
2438 the --gc-sections option is given, the linker will zero out the entries
2439 that are not used, so that the code for those functions need not be
2440 included in the output.
2441
2442 VTABLE_INHERIT is a zero-space relocation used to describe to the
2443 linker the inheritence tree of a C++ virtual function table.  The
2444 relocation's symbol should be the parent class' vtable, and the
2445 relocation should be located at the child vtable.
2446
2447 VTABLE_ENTRY is a zero-space relocation that describes the use of a
2448 virtual function table entry.  The reloc's symbol should refer to the
2449 table of the class mentioned in the code.  Off of that base, an offset
2450 describes the entry that is being used.  For Rela hosts, this offset
2451 is stored in the reloc's addend.  For Rel hosts, we are forced to put
2452 this offset in the reloc's section offset. */
2453   BFD_RELOC_VTABLE_INHERIT,
2454   BFD_RELOC_VTABLE_ENTRY,
2455
2456 /* Intel IA64 Relocations. */
2457   BFD_RELOC_IA64_IMM14,
2458   BFD_RELOC_IA64_IMM22,
2459   BFD_RELOC_IA64_IMM64,
2460   BFD_RELOC_IA64_DIR32MSB,
2461   BFD_RELOC_IA64_DIR32LSB,
2462   BFD_RELOC_IA64_DIR64MSB,
2463   BFD_RELOC_IA64_DIR64LSB,
2464   BFD_RELOC_IA64_GPREL22,
2465   BFD_RELOC_IA64_GPREL64I,
2466   BFD_RELOC_IA64_GPREL32MSB,
2467   BFD_RELOC_IA64_GPREL32LSB,
2468   BFD_RELOC_IA64_GPREL64MSB,
2469   BFD_RELOC_IA64_GPREL64LSB,
2470   BFD_RELOC_IA64_LTOFF22,
2471   BFD_RELOC_IA64_LTOFF64I,
2472   BFD_RELOC_IA64_PLTOFF22,
2473   BFD_RELOC_IA64_PLTOFF64I,
2474   BFD_RELOC_IA64_PLTOFF64MSB,
2475   BFD_RELOC_IA64_PLTOFF64LSB,
2476   BFD_RELOC_IA64_FPTR64I,
2477   BFD_RELOC_IA64_FPTR32MSB,
2478   BFD_RELOC_IA64_FPTR32LSB,
2479   BFD_RELOC_IA64_FPTR64MSB,
2480   BFD_RELOC_IA64_FPTR64LSB,
2481   BFD_RELOC_IA64_PCREL21B,
2482   BFD_RELOC_IA64_PCREL21BI,
2483   BFD_RELOC_IA64_PCREL21M,
2484   BFD_RELOC_IA64_PCREL21F,
2485   BFD_RELOC_IA64_PCREL22,
2486   BFD_RELOC_IA64_PCREL60B,
2487   BFD_RELOC_IA64_PCREL64I,
2488   BFD_RELOC_IA64_PCREL32MSB,
2489   BFD_RELOC_IA64_PCREL32LSB,
2490   BFD_RELOC_IA64_PCREL64MSB,
2491   BFD_RELOC_IA64_PCREL64LSB,
2492   BFD_RELOC_IA64_LTOFF_FPTR22,
2493   BFD_RELOC_IA64_LTOFF_FPTR64I,
2494   BFD_RELOC_IA64_LTOFF_FPTR64MSB,
2495   BFD_RELOC_IA64_LTOFF_FPTR64LSB,
2496   BFD_RELOC_IA64_SEGBASE,
2497   BFD_RELOC_IA64_SEGREL32MSB,
2498   BFD_RELOC_IA64_SEGREL32LSB,
2499   BFD_RELOC_IA64_SEGREL64MSB,
2500   BFD_RELOC_IA64_SEGREL64LSB,
2501   BFD_RELOC_IA64_SECREL32MSB,
2502   BFD_RELOC_IA64_SECREL32LSB,
2503   BFD_RELOC_IA64_SECREL64MSB,
2504   BFD_RELOC_IA64_SECREL64LSB,
2505   BFD_RELOC_IA64_REL32MSB,
2506   BFD_RELOC_IA64_REL32LSB,
2507   BFD_RELOC_IA64_REL64MSB,
2508   BFD_RELOC_IA64_REL64LSB,
2509   BFD_RELOC_IA64_LTV32MSB,
2510   BFD_RELOC_IA64_LTV32LSB,
2511   BFD_RELOC_IA64_LTV64MSB,
2512   BFD_RELOC_IA64_LTV64LSB,
2513   BFD_RELOC_IA64_IPLTMSB,
2514   BFD_RELOC_IA64_IPLTLSB,
2515   BFD_RELOC_IA64_EPLTMSB,
2516   BFD_RELOC_IA64_EPLTLSB,
2517   BFD_RELOC_IA64_COPY,
2518   BFD_RELOC_IA64_TPREL22,
2519   BFD_RELOC_IA64_TPREL64MSB,
2520   BFD_RELOC_IA64_TPREL64LSB,
2521   BFD_RELOC_IA64_LTOFF_TP22,
2522   BFD_RELOC_IA64_LTOFF22X,
2523   BFD_RELOC_IA64_LDXMOV,
2524   BFD_RELOC_UNUSED };
2525 typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
2526 reloc_howto_type *
2527
2528 bfd_reloc_type_lookup  PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
2529
2530 const char *
2531 bfd_get_reloc_code_name  PARAMS ((bfd_reloc_code_real_type code));
2532
2533
2534 typedef struct symbol_cache_entry
2535 {
2536         /* A pointer to the BFD which owns the symbol. This information
2537           is necessary so that a back end can work out what additional
2538           information (invisible to the application writer) is carried
2539           with the symbol.
2540
2541           This field is *almost* redundant, since you can use section->owner
2542           instead, except that some symbols point to the global sections
2543           bfd_{abs,com,und}_section.  This could be fixed by making
2544           these globals be per-bfd (or per-target-flavor).  FIXME. */
2545
2546   struct _bfd *the_bfd;  /* Use bfd_asymbol_bfd(sym) to access this field. */
2547
2548         /* The text of the symbol. The name is left alone, and not copied; the
2549           application may not alter it. */
2550   CONST char *name;
2551
2552         /* The value of the symbol.  This really should be a union of a
2553           numeric value with a pointer, since some flags indicate that
2554           a pointer to another symbol is stored here.  */
2555   symvalue value;
2556
2557         /* Attributes of a symbol: */
2558
2559 #define BSF_NO_FLAGS    0x00
2560
2561         /* The symbol has local scope; <<static>> in <<C>>. The value
2562           is the offset into the section of the data. */
2563 #define BSF_LOCAL      0x01
2564
2565         /* The symbol has global scope; initialized data in <<C>>. The
2566           value is the offset into the section of the data. */
2567 #define BSF_GLOBAL     0x02
2568
2569         /* The symbol has global scope and is exported. The value is
2570           the offset into the section of the data. */
2571 #define BSF_EXPORT     BSF_GLOBAL  /* no real difference */
2572
2573         /* A normal C symbol would be one of:
2574           <<BSF_LOCAL>>, <<BSF_FORT_COMM>>,  <<BSF_UNDEFINED>> or
2575           <<BSF_GLOBAL>> */
2576
2577         /* The symbol is a debugging record. The value has an arbitary
2578           meaning, unless BSF_DEBUGGING_RELOC is also set.  */
2579 #define BSF_DEBUGGING  0x08
2580
2581         /* The symbol denotes a function entry point.  Used in ELF,
2582           perhaps others someday.  */
2583 #define BSF_FUNCTION    0x10
2584
2585         /* Used by the linker. */
2586 #define BSF_KEEP        0x20
2587 #define BSF_KEEP_G      0x40
2588
2589         /* A weak global symbol, overridable without warnings by
2590           a regular global symbol of the same name.  */
2591 #define BSF_WEAK        0x80
2592
2593         /* This symbol was created to point to a section, e.g. ELF's
2594           STT_SECTION symbols.  */
2595 #define BSF_SECTION_SYM 0x100
2596
2597         /* The symbol used to be a common symbol, but now it is
2598           allocated. */
2599 #define BSF_OLD_COMMON  0x200
2600
2601         /* The default value for common data. */
2602 #define BFD_FORT_COMM_DEFAULT_VALUE 0
2603
2604         /* In some files the type of a symbol sometimes alters its
2605           location in an output file - ie in coff a <<ISFCN>> symbol
2606           which is also <<C_EXT>> symbol appears where it was
2607           declared and not at the end of a section.  This bit is set
2608           by the target BFD part to convey this information. */
2609
2610 #define BSF_NOT_AT_END    0x400
2611
2612         /* Signal that the symbol is the label of constructor section. */
2613 #define BSF_CONSTRUCTOR   0x800
2614
2615         /* Signal that the symbol is a warning symbol.  The name is a
2616           warning.  The name of the next symbol is the one to warn about;
2617           if a reference is made to a symbol with the same name as the next
2618           symbol, a warning is issued by the linker. */
2619 #define BSF_WARNING       0x1000
2620
2621         /* Signal that the symbol is indirect.  This symbol is an indirect
2622           pointer to the symbol with the same name as the next symbol. */
2623 #define BSF_INDIRECT      0x2000
2624
2625         /* BSF_FILE marks symbols that contain a file name.  This is used
2626           for ELF STT_FILE symbols.  */
2627 #define BSF_FILE          0x4000
2628
2629         /* Symbol is from dynamic linking information.  */
2630 #define BSF_DYNAMIC       0x8000
2631
2632         /* The symbol denotes a data object.  Used in ELF, and perhaps
2633           others someday.  */
2634 #define BSF_OBJECT        0x10000
2635
2636         /* This symbol is a debugging symbol.  The value is the offset
2637           into the section of the data.  BSF_DEBUGGING should be set
2638           as well.  */
2639 #define BSF_DEBUGGING_RELOC 0x20000
2640
2641   flagword flags;
2642
2643         /* A pointer to the section to which this symbol is
2644           relative.  This will always be non NULL, there are special
2645           sections for undefined and absolute symbols.  */
2646   struct sec *section;
2647
2648         /* Back end special data.  */
2649   union
2650     {
2651       PTR p;
2652       bfd_vma i;
2653     } udata;
2654
2655 } asymbol;
2656 #define bfd_get_symtab_upper_bound(abfd) \
2657      BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd))
2658 boolean
2659 bfd_is_local_label PARAMS ((bfd *abfd, asymbol *sym));
2660
2661 boolean
2662 bfd_is_local_label_name PARAMS ((bfd *abfd, const char *name));
2663
2664 #define bfd_is_local_label_name(abfd, name) \
2665      BFD_SEND (abfd, _bfd_is_local_label_name, (abfd, name))
2666 #define bfd_canonicalize_symtab(abfd, location) \
2667      BFD_SEND (abfd, _bfd_canonicalize_symtab,\
2668                   (abfd, location))
2669 boolean
2670 bfd_set_symtab  PARAMS ((bfd *abfd, asymbol **location, unsigned int count));
2671
2672 void
2673 bfd_print_symbol_vandf PARAMS ((PTR file, asymbol *symbol));
2674
2675 #define bfd_make_empty_symbol(abfd) \
2676      BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
2677 #define bfd_make_debug_symbol(abfd,ptr,size) \
2678         BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
2679 int
2680 bfd_decode_symclass PARAMS ((asymbol *symbol));
2681
2682 boolean
2683 bfd_is_undefined_symclass  PARAMS ((int symclass));
2684
2685 void
2686 bfd_symbol_info PARAMS ((asymbol *symbol, symbol_info *ret));
2687
2688 boolean
2689 bfd_copy_private_symbol_data PARAMS ((bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym));
2690
2691 #define bfd_copy_private_symbol_data(ibfd, isymbol, obfd, osymbol) \
2692      BFD_SEND (obfd, _bfd_copy_private_symbol_data, \
2693                (ibfd, isymbol, obfd, osymbol))
2694 struct _bfd
2695 {
2696      /* The filename the application opened the BFD with.  */
2697     CONST char *filename;
2698
2699      /* A pointer to the target jump table.             */
2700     const struct bfd_target *xvec;
2701
2702      /* To avoid dragging too many header files into every file that
2703        includes `<<bfd.h>>', IOSTREAM has been declared as a "char
2704        *", and MTIME as a "long".  Their correct types, to which they
2705        are cast when used, are "FILE *" and "time_t".    The iostream
2706        is the result of an fopen on the filename.  However, if the
2707        BFD_IN_MEMORY flag is set, then iostream is actually a pointer
2708        to a bfd_in_memory struct.  */
2709     PTR iostream;
2710
2711      /* Is the file descriptor being cached?  That is, can it be closed as
2712        needed, and re-opened when accessed later?  */
2713
2714     boolean cacheable;
2715
2716      /* Marks whether there was a default target specified when the
2717        BFD was opened. This is used to select which matching algorithm
2718        to use to choose the back end. */
2719
2720     boolean target_defaulted;
2721
2722      /* The caching routines use these to maintain a
2723        least-recently-used list of BFDs */
2724
2725     struct _bfd *lru_prev, *lru_next;
2726
2727      /* When a file is closed by the caching routines, BFD retains
2728        state information on the file here: */
2729
2730     file_ptr where;
2731
2732      /* and here: (``once'' means at least once) */
2733
2734     boolean opened_once;
2735
2736      /* Set if we have a locally maintained mtime value, rather than
2737        getting it from the file each time: */
2738
2739     boolean mtime_set;
2740
2741      /* File modified time, if mtime_set is true: */
2742
2743     long mtime;
2744
2745      /* Reserved for an unimplemented file locking extension.*/
2746
2747     int ifd;
2748
2749      /* The format which belongs to the BFD. (object, core, etc.) */
2750
2751     bfd_format format;
2752
2753      /* The direction the BFD was opened with*/
2754
2755     enum bfd_direction {no_direction = 0,
2756                         read_direction = 1,
2757                         write_direction = 2,
2758                         both_direction = 3} direction;
2759
2760      /* Format_specific flags*/
2761
2762     flagword flags;
2763
2764      /* Currently my_archive is tested before adding origin to
2765        anything. I believe that this can become always an add of
2766        origin, with origin set to 0 for non archive files.   */
2767
2768     file_ptr origin;
2769
2770      /* Remember when output has begun, to stop strange things
2771        from happening. */
2772     boolean output_has_begun;
2773
2774      /* Pointer to linked list of sections*/
2775     struct sec  *sections;
2776
2777      /* The number of sections */
2778     unsigned int section_count;
2779
2780      /* Stuff only useful for object files:
2781        The start address. */
2782     bfd_vma start_address;
2783
2784      /* Used for input and output*/
2785     unsigned int symcount;
2786
2787      /* Symbol table for output BFD (with symcount entries) */
2788     struct symbol_cache_entry  **outsymbols;
2789
2790      /* Pointer to structure which contains architecture information*/
2791     const struct bfd_arch_info *arch_info;
2792
2793      /* Stuff only useful for archives:*/
2794     PTR arelt_data;
2795     struct _bfd *my_archive;      /* The containing archive BFD.  */
2796     struct _bfd *next;            /* The next BFD in the archive.  */
2797     struct _bfd *archive_head;    /* The first BFD in the archive.  */
2798     boolean has_armap;
2799
2800      /* A chain of BFD structures involved in a link.  */
2801     struct _bfd *link_next;
2802
2803      /* A field used by _bfd_generic_link_add_archive_symbols.  This will
2804        be used only for archive elements.  */
2805     int archive_pass;
2806
2807      /* Used by the back end to hold private data. */
2808
2809     union
2810       {
2811       struct aout_data_struct *aout_data;
2812       struct artdata *aout_ar_data;
2813       struct _oasys_data *oasys_obj_data;
2814       struct _oasys_ar_data *oasys_ar_data;
2815       struct coff_tdata *coff_obj_data;
2816       struct pe_tdata *pe_obj_data;
2817       struct xcoff_tdata *xcoff_obj_data;
2818       struct ecoff_tdata *ecoff_obj_data;
2819       struct ieee_data_struct *ieee_data;
2820       struct ieee_ar_data_struct *ieee_ar_data;
2821       struct srec_data_struct *srec_data;
2822       struct ihex_data_struct *ihex_data;
2823       struct tekhex_data_struct *tekhex_data;
2824       struct elf_obj_tdata *elf_obj_data;
2825       struct nlm_obj_tdata *nlm_obj_data;
2826       struct bout_data_struct *bout_data;
2827       struct sun_core_struct *sun_core_data;
2828       struct sco5_core_struct *sco5_core_data;
2829       struct trad_core_struct *trad_core_data;
2830       struct som_data_struct *som_data;
2831       struct hpux_core_struct *hpux_core_data;
2832       struct hppabsd_core_struct *hppabsd_core_data;
2833       struct sgi_core_struct *sgi_core_data;
2834       struct lynx_core_struct *lynx_core_data;
2835       struct osf_core_struct *osf_core_data;
2836       struct cisco_core_struct *cisco_core_data;
2837       struct versados_data_struct *versados_data;
2838       struct netbsd_core_struct *netbsd_core_data;
2839       PTR any;
2840       } tdata;
2841
2842      /* Used by the application to hold private data*/
2843     PTR usrdata;
2844
2845    /* Where all the allocated stuff under this BFD goes.  This is a
2846      struct objalloc *, but we use PTR to avoid requiring the inclusion of
2847      objalloc.h.  */
2848     PTR memory;
2849 };
2850
2851 typedef enum bfd_error
2852 {
2853   bfd_error_no_error = 0,
2854   bfd_error_system_call,
2855   bfd_error_invalid_target,
2856   bfd_error_wrong_format,
2857   bfd_error_invalid_operation,
2858   bfd_error_no_memory,
2859   bfd_error_no_symbols,
2860   bfd_error_no_armap,
2861   bfd_error_no_more_archived_files,
2862   bfd_error_malformed_archive,
2863   bfd_error_file_not_recognized,
2864   bfd_error_file_ambiguously_recognized,
2865   bfd_error_no_contents,
2866   bfd_error_nonrepresentable_section,
2867   bfd_error_no_debug_section,
2868   bfd_error_bad_value,
2869   bfd_error_file_truncated,
2870   bfd_error_file_too_big,
2871   bfd_error_invalid_error_code
2872 } bfd_error_type;
2873
2874 bfd_error_type
2875 bfd_get_error  PARAMS ((void));
2876
2877 void
2878 bfd_set_error  PARAMS ((bfd_error_type error_tag));
2879
2880 CONST char *
2881 bfd_errmsg  PARAMS ((bfd_error_type error_tag));
2882
2883 void
2884 bfd_perror  PARAMS ((CONST char *message));
2885
2886 typedef void (*bfd_error_handler_type) PARAMS ((const char *, ...));
2887
2888 bfd_error_handler_type
2889 bfd_set_error_handler  PARAMS ((bfd_error_handler_type));
2890
2891 void
2892 bfd_set_error_program_name  PARAMS ((const char *));
2893
2894 bfd_error_handler_type
2895 bfd_get_error_handler  PARAMS ((void));
2896
2897 long
2898 bfd_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
2899
2900 long
2901 bfd_canonicalize_reloc
2902  PARAMS ((bfd *abfd,
2903     asection *sec,
2904     arelent **loc,
2905     asymbol **syms));
2906
2907 void
2908 bfd_set_reloc
2909  PARAMS ((bfd *abfd, asection *sec, arelent **rel, unsigned int count)
2910
2911     );
2912
2913 boolean
2914 bfd_set_file_flags PARAMS ((bfd *abfd, flagword flags));
2915
2916 boolean
2917 bfd_set_start_address PARAMS ((bfd *abfd, bfd_vma vma));
2918
2919 long
2920 bfd_get_mtime PARAMS ((bfd *abfd));
2921
2922 long
2923 bfd_get_size PARAMS ((bfd *abfd));
2924
2925 int
2926 bfd_get_gp_size PARAMS ((bfd *abfd));
2927
2928 void
2929 bfd_set_gp_size PARAMS ((bfd *abfd, int i));
2930
2931 bfd_vma
2932 bfd_scan_vma PARAMS ((CONST char *string, CONST char **end, int base));
2933
2934 boolean
2935 bfd_copy_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
2936
2937 #define bfd_copy_private_bfd_data(ibfd, obfd) \
2938      BFD_SEND (obfd, _bfd_copy_private_bfd_data, \
2939                (ibfd, obfd))
2940 boolean
2941 bfd_merge_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
2942
2943 #define bfd_merge_private_bfd_data(ibfd, obfd) \
2944      BFD_SEND (obfd, _bfd_merge_private_bfd_data, \
2945                (ibfd, obfd))
2946 boolean
2947 bfd_set_private_flags PARAMS ((bfd *abfd, flagword flags));
2948
2949 #define bfd_set_private_flags(abfd, flags) \
2950      BFD_SEND (abfd, _bfd_set_private_flags, \
2951                (abfd, flags))
2952 #define bfd_sizeof_headers(abfd, reloc) \
2953      BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
2954
2955 #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
2956      BFD_SEND (abfd, _bfd_find_nearest_line,  (abfd, sec, syms, off, file, func, line))
2957
2958         /* Do these three do anything useful at all, for any back end?  */
2959 #define bfd_debug_info_start(abfd) \
2960         BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
2961
2962 #define bfd_debug_info_end(abfd) \
2963         BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
2964
2965 #define bfd_debug_info_accumulate(abfd, section) \
2966         BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
2967
2968
2969 #define bfd_stat_arch_elt(abfd, stat) \
2970         BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
2971
2972 #define bfd_update_armap_timestamp(abfd) \
2973         BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
2974
2975 #define bfd_set_arch_mach(abfd, arch, mach)\
2976         BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
2977
2978 #define bfd_relax_section(abfd, section, link_info, again) \
2979        BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
2980
2981 #define bfd_gc_sections(abfd, link_info) \
2982        BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info))
2983
2984 #define bfd_link_hash_table_create(abfd) \
2985        BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
2986
2987 #define bfd_link_add_symbols(abfd, info) \
2988        BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
2989
2990 #define bfd_final_link(abfd, info) \
2991        BFD_SEND (abfd, _bfd_final_link, (abfd, info))
2992
2993 #define bfd_free_cached_info(abfd) \
2994        BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
2995
2996 #define bfd_get_dynamic_symtab_upper_bound(abfd) \
2997        BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
2998
2999 #define bfd_print_private_bfd_data(abfd, file)\
3000        BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
3001
3002 #define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
3003        BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
3004
3005 #define bfd_get_dynamic_reloc_upper_bound(abfd) \
3006        BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
3007
3008 #define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
3009        BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
3010
3011 extern bfd_byte *bfd_get_relocated_section_contents
3012        PARAMS ((bfd *, struct bfd_link_info *,
3013                  struct bfd_link_order *, bfd_byte *,
3014                  boolean, asymbol **));
3015
3016 symindex
3017 bfd_get_next_mapent PARAMS ((bfd *abfd, symindex previous, carsym **sym));
3018
3019 boolean
3020 bfd_set_archive_head PARAMS ((bfd *output, bfd *new_head));
3021
3022 bfd *
3023 bfd_openr_next_archived_file PARAMS ((bfd *archive, bfd *previous));
3024
3025 CONST char *
3026 bfd_core_file_failing_command PARAMS ((bfd *abfd));
3027
3028 int
3029 bfd_core_file_failing_signal PARAMS ((bfd *abfd));
3030
3031 boolean
3032 core_file_matches_executable_p
3033  PARAMS ((bfd *core_bfd, bfd *exec_bfd));
3034
3035 #define BFD_SEND(bfd, message, arglist) \
3036                ((*((bfd)->xvec->message)) arglist)
3037
3038 #ifdef DEBUG_BFD_SEND
3039 #undef BFD_SEND
3040 #define BFD_SEND(bfd, message, arglist) \
3041   (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
3042     ((*((bfd)->xvec->message)) arglist) : \
3043     (bfd_assert (__FILE__,__LINE__), NULL))
3044 #endif
3045 #define BFD_SEND_FMT(bfd, message, arglist) \
3046             (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
3047
3048 #ifdef DEBUG_BFD_SEND
3049 #undef BFD_SEND_FMT
3050 #define BFD_SEND_FMT(bfd, message, arglist) \
3051   (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
3052    (((bfd)->xvec->message[(int)((bfd)->format)]) arglist) : \
3053    (bfd_assert (__FILE__,__LINE__), NULL))
3054 #endif
3055 enum bfd_flavour {
3056   bfd_target_unknown_flavour,
3057   bfd_target_aout_flavour,
3058   bfd_target_coff_flavour,
3059   bfd_target_ecoff_flavour,
3060   bfd_target_elf_flavour,
3061   bfd_target_ieee_flavour,
3062   bfd_target_nlm_flavour,
3063   bfd_target_oasys_flavour,
3064   bfd_target_tekhex_flavour,
3065   bfd_target_srec_flavour,
3066   bfd_target_ihex_flavour,
3067   bfd_target_som_flavour,
3068   bfd_target_os9k_flavour,
3069   bfd_target_versados_flavour,
3070   bfd_target_msdos_flavour,
3071   bfd_target_ovax_flavour,
3072   bfd_target_evax_flavour
3073 };
3074
3075 enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
3076
3077  /* Forward declaration.  */
3078 typedef struct bfd_link_info _bfd_link_info;
3079
3080 typedef struct bfd_target
3081 {
3082   char *name;
3083   enum bfd_flavour flavour;
3084   enum bfd_endian byteorder;
3085   enum bfd_endian header_byteorder;
3086   flagword object_flags;
3087   flagword section_flags;
3088   char symbol_leading_char;
3089   char ar_pad_char;
3090   unsigned short ar_max_namelen;
3091   bfd_vma      (*bfd_getx64) PARAMS ((const bfd_byte *));
3092   bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *));
3093   void         (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
3094   bfd_vma      (*bfd_getx32) PARAMS ((const bfd_byte *));
3095   bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *));
3096   void         (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
3097   bfd_vma      (*bfd_getx16) PARAMS ((const bfd_byte *));
3098   bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *));
3099   void         (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
3100   bfd_vma      (*bfd_h_getx64) PARAMS ((const bfd_byte *));
3101   bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *));
3102   void         (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
3103   bfd_vma      (*bfd_h_getx32) PARAMS ((const bfd_byte *));
3104   bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *));
3105   void         (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
3106   bfd_vma      (*bfd_h_getx16) PARAMS ((const bfd_byte *));
3107   bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *));
3108   void         (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
3109   const struct bfd_target *(*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
3110   boolean             (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
3111   boolean             (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
3112
3113    /* Generic entry points.  */
3114 #define BFD_JUMP_TABLE_GENERIC(NAME)\
3115 CAT(NAME,_close_and_cleanup),\
3116 CAT(NAME,_bfd_free_cached_info),\
3117 CAT(NAME,_new_section_hook),\
3118 CAT(NAME,_get_section_contents),\
3119 CAT(NAME,_get_section_contents_in_window)
3120
3121    /* Called when the BFD is being closed to do any necessary cleanup.  */
3122   boolean       (*_close_and_cleanup) PARAMS ((bfd *));
3123    /* Ask the BFD to free all cached information.  */
3124   boolean (*_bfd_free_cached_info) PARAMS ((bfd *));
3125    /* Called when a new section is created.  */
3126   boolean       (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
3127    /* Read the contents of a section.  */
3128   boolean       (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
3129                                             file_ptr, bfd_size_type));
3130   boolean       (*_bfd_get_section_contents_in_window)
3131                           PARAMS ((bfd *, sec_ptr, bfd_window *,
3132                                    file_ptr, bfd_size_type));
3133
3134    /* Entry points to copy private data.  */
3135 #define BFD_JUMP_TABLE_COPY(NAME)\
3136 CAT(NAME,_bfd_copy_private_bfd_data),\
3137 CAT(NAME,_bfd_merge_private_bfd_data),\
3138 CAT(NAME,_bfd_copy_private_section_data),\
3139 CAT(NAME,_bfd_copy_private_symbol_data),\
3140 CAT(NAME,_bfd_set_private_flags),\
3141 CAT(NAME,_bfd_print_private_bfd_data)\
3142    /* Called to copy BFD general private data from one object file
3143      to another.  */
3144   boolean       (*_bfd_copy_private_bfd_data) PARAMS ((bfd *, bfd *));
3145    /* Called to merge BFD general private data from one object file
3146      to a common output file when linking.  */
3147   boolean       (*_bfd_merge_private_bfd_data) PARAMS ((bfd *, bfd *));
3148    /* Called to copy BFD private section data from one object file
3149      to another.  */
3150   boolean       (*_bfd_copy_private_section_data) PARAMS ((bfd *, sec_ptr,
3151                                                        bfd *, sec_ptr));
3152    /* Called to copy BFD private symbol data from one symbol
3153      to another.  */
3154   boolean       (*_bfd_copy_private_symbol_data) PARAMS ((bfd *, asymbol *,
3155                                                           bfd *, asymbol *));
3156    /* Called to set private backend flags */
3157   boolean       (*_bfd_set_private_flags) PARAMS ((bfd *, flagword));
3158
3159    /* Called to print private BFD data */
3160   boolean       (*_bfd_print_private_bfd_data) PARAMS ((bfd *, PTR));
3161
3162    /* Core file entry points.  */
3163 #define BFD_JUMP_TABLE_CORE(NAME)\
3164 CAT(NAME,_core_file_failing_command),\
3165 CAT(NAME,_core_file_failing_signal),\
3166 CAT(NAME,_core_file_matches_executable_p)
3167   char *   (*_core_file_failing_command) PARAMS ((bfd *));
3168   int      (*_core_file_failing_signal) PARAMS ((bfd *));
3169   boolean  (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
3170
3171    /* Archive entry points.  */
3172 #define BFD_JUMP_TABLE_ARCHIVE(NAME)\
3173 CAT(NAME,_slurp_armap),\
3174 CAT(NAME,_slurp_extended_name_table),\
3175 CAT(NAME,_construct_extended_name_table),\
3176 CAT(NAME,_truncate_arname),\
3177 CAT(NAME,_write_armap),\
3178 CAT(NAME,_read_ar_hdr),\
3179 CAT(NAME,_openr_next_archived_file),\
3180 CAT(NAME,_get_elt_at_index),\
3181 CAT(NAME,_generic_stat_arch_elt),\
3182 CAT(NAME,_update_armap_timestamp)
3183   boolean  (*_bfd_slurp_armap) PARAMS ((bfd *));
3184   boolean  (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
3185   boolean  (*_bfd_construct_extended_name_table)
3186              PARAMS ((bfd *, char **, bfd_size_type *, const char **));
3187   void     (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
3188   boolean  (*write_armap) PARAMS ((bfd *arch,
3189                               unsigned int elength,
3190                               struct orl *map,
3191                               unsigned int orl_count,
3192                               int stridx));
3193   PTR (*_bfd_read_ar_hdr_fn) PARAMS ((bfd *));
3194   bfd *    (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
3195 #define bfd_get_elt_at_index(b,i) BFD_SEND(b, _bfd_get_elt_at_index, (b,i))
3196   bfd *    (*_bfd_get_elt_at_index) PARAMS ((bfd *, symindex));
3197   int      (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
3198   boolean  (*_bfd_update_armap_timestamp) PARAMS ((bfd *));
3199
3200    /* Entry points used for symbols.  */
3201 #define BFD_JUMP_TABLE_SYMBOLS(NAME)\
3202 CAT(NAME,_get_symtab_upper_bound),\
3203 CAT(NAME,_get_symtab),\
3204 CAT(NAME,_make_empty_symbol),\
3205 CAT(NAME,_print_symbol),\
3206 CAT(NAME,_get_symbol_info),\
3207 CAT(NAME,_bfd_is_local_label_name),\
3208 CAT(NAME,_get_lineno),\
3209 CAT(NAME,_find_nearest_line),\
3210 CAT(NAME,_bfd_make_debug_symbol),\
3211 CAT(NAME,_read_minisymbols),\
3212 CAT(NAME,_minisymbol_to_symbol)
3213   long  (*_bfd_get_symtab_upper_bound) PARAMS ((bfd *));
3214   long  (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
3215                                              struct symbol_cache_entry **));
3216   struct symbol_cache_entry  *
3217                 (*_bfd_make_empty_symbol) PARAMS ((bfd *));
3218   void          (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
3219                                       struct symbol_cache_entry *,
3220                                       bfd_print_symbol_type));
3221 #define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
3222   void          (*_bfd_get_symbol_info) PARAMS ((bfd *,
3223                                       struct symbol_cache_entry *,
3224                                       symbol_info *));
3225 #define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
3226   boolean       (*_bfd_is_local_label_name) PARAMS ((bfd *, const char *));
3227
3228   alent *    (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
3229   boolean    (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
3230                     struct sec *section, struct symbol_cache_entry **symbols,
3231                     bfd_vma offset, CONST char **file, CONST char **func,
3232                     unsigned int *line));
3233   /* Back-door to allow format-aware applications to create debug symbols
3234     while using BFD for everything else.  Currently used by the assembler
3235     when creating COFF files.  */
3236   asymbol *  (*_bfd_make_debug_symbol) PARAMS ((
3237        bfd *abfd,
3238        void *ptr,
3239        unsigned long size));
3240 #define bfd_read_minisymbols(b, d, m, s) \
3241   BFD_SEND (b, _read_minisymbols, (b, d, m, s))
3242   long  (*_read_minisymbols) PARAMS ((bfd *, boolean, PTR *,
3243                                       unsigned int *));
3244 #define bfd_minisymbol_to_symbol(b, d, m, f) \
3245   BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
3246   asymbol *(*_minisymbol_to_symbol) PARAMS ((bfd *, boolean, const PTR,
3247                                              asymbol *));
3248
3249    /* Routines for relocs.  */
3250 #define BFD_JUMP_TABLE_RELOCS(NAME)\
3251 CAT(NAME,_get_reloc_upper_bound),\
3252 CAT(NAME,_canonicalize_reloc),\
3253 CAT(NAME,_bfd_reloc_type_lookup)
3254   long  (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
3255   long  (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
3256                                             struct symbol_cache_entry **));
3257    /* See documentation on reloc types.  */
3258   reloc_howto_type *
3259        (*reloc_type_lookup) PARAMS ((bfd *abfd,
3260                                      bfd_reloc_code_real_type code));
3261
3262    /* Routines used when writing an object file.  */
3263 #define BFD_JUMP_TABLE_WRITE(NAME)\
3264 CAT(NAME,_set_arch_mach),\
3265 CAT(NAME,_set_section_contents)
3266   boolean    (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
3267                     unsigned long));
3268   boolean       (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
3269                                             file_ptr, bfd_size_type));
3270
3271    /* Routines used by the linker.  */
3272 #define BFD_JUMP_TABLE_LINK(NAME)\
3273 CAT(NAME,_sizeof_headers),\
3274 CAT(NAME,_bfd_get_relocated_section_contents),\
3275 CAT(NAME,_bfd_relax_section),\
3276 CAT(NAME,_bfd_link_hash_table_create),\
3277 CAT(NAME,_bfd_link_add_symbols),\
3278 CAT(NAME,_bfd_final_link),\
3279 CAT(NAME,_bfd_link_split_section),\
3280 CAT(NAME,_bfd_gc_sections)
3281   int        (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
3282   bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
3283                     struct bfd_link_info *, struct bfd_link_order *,
3284                     bfd_byte *data, boolean relocateable,
3285                     struct symbol_cache_entry **));
3286
3287   boolean    (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
3288                     struct bfd_link_info *, boolean *again));
3289
3290    /* Create a hash table for the linker.  Different backends store
3291      different information in this table.  */
3292   struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *));
3293
3294    /* Add symbols from this object file into the hash table.  */
3295   boolean (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
3296
3297    /* Do a link based on the link_order structures attached to each
3298      section of the BFD.  */
3299   boolean (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *));
3300
3301    /* Should this section be split up into smaller pieces during linking.  */
3302   boolean (*_bfd_link_split_section) PARAMS ((bfd *, struct sec *));
3303
3304    /* Remove sections that are not referenced from the output.  */
3305   boolean (*_bfd_gc_sections) PARAMS ((bfd *, struct bfd_link_info *));
3306
3307    /* Routines to handle dynamic symbols and relocs.  */
3308 #define BFD_JUMP_TABLE_DYNAMIC(NAME)\
3309 CAT(NAME,_get_dynamic_symtab_upper_bound),\
3310 CAT(NAME,_canonicalize_dynamic_symtab),\
3311 CAT(NAME,_get_dynamic_reloc_upper_bound),\
3312 CAT(NAME,_canonicalize_dynamic_reloc)
3313    /* Get the amount of memory required to hold the dynamic symbols. */
3314   long  (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *));
3315    /* Read in the dynamic symbols.  */
3316   long  (*_bfd_canonicalize_dynamic_symtab)
3317     PARAMS ((bfd *, struct symbol_cache_entry **));
3318    /* Get the amount of memory required to hold the dynamic relocs.  */
3319   long  (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *));
3320    /* Read in the dynamic relocs.  */
3321   long  (*_bfd_canonicalize_dynamic_reloc)
3322     PARAMS ((bfd *, arelent **, struct symbol_cache_entry **));
3323
3324   /* Opposite endian version of this target.  */
3325  const struct bfd_target * alternative_target;
3326
3327  PTR backend_data;
3328
3329 } bfd_target;
3330 boolean
3331 bfd_set_default_target  PARAMS ((const char *name));
3332
3333 const bfd_target *
3334 bfd_find_target PARAMS ((CONST char *target_name, bfd *abfd));
3335
3336 const char **
3337 bfd_target_list PARAMS ((void));
3338
3339 const bfd_target *
3340 bfd_search_for_target  PARAMS ((int (* search_func)(const bfd_target *, void *), void *));
3341
3342 boolean
3343 bfd_check_format PARAMS ((bfd *abfd, bfd_format format));
3344
3345 boolean
3346 bfd_check_format_matches PARAMS ((bfd *abfd, bfd_format format, char ***matching));
3347
3348 boolean
3349 bfd_set_format PARAMS ((bfd *abfd, bfd_format format));
3350
3351 CONST char *
3352 bfd_format_string PARAMS ((bfd_format format));
3353
3354 #ifdef __cplusplus
3355 }
3356 #endif
3357 #endif