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_family_coff(abfd) \
 493   (bfd_get_flavour (abfd) == bfd_target_coff_flavour || \
 494    bfd_get_flavour (abfd) == bfd_target_xcoff_flavour)
 495 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG)
 496 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE)
 497 #define bfd_header_big_endian(abfd) \
 498   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG)
 499 #define bfd_header_little_endian(abfd) \
 500   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE)
 501 #define bfd_get_file_flags(abfd) ((abfd)->flags)
 502 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
 503 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
 504 #define bfd_my_archive(abfd) ((abfd)->my_archive)
 505 #define bfd_has_map(abfd) ((abfd)->has_armap)
 506
 507 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
 508 #define bfd_usrdata(abfd) ((abfd)->usrdata)
 509
 510 #define bfd_get_start_address(abfd) ((abfd)->start_address)
 511 #define bfd_get_symcount(abfd) ((abfd)->symcount)
 512 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
 513 #define bfd_count_sections(abfd) ((abfd)->section_count)
 514
 515 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
 516
 517 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = (boolean)(bool)), true)
 518
 519 extern boolean bfd_record_phdr
 520   PARAMS ((bfd *, unsigned long, boolean, flagword, boolean, bfd_vma,
 521            boolean, boolean, unsigned int, struct sec **));
 522
 523 /* Byte swapping routines.  */
 524
 525 bfd_vma         bfd_getb64         PARAMS ((const unsigned char *));
 526 bfd_vma         bfd_getl64         PARAMS ((const unsigned char *));
 527 bfd_signed_vma  bfd_getb_signed_64 PARAMS ((const unsigned char *));
 528 bfd_signed_vma  bfd_getl_signed_64 PARAMS ((const unsigned char *));
 529 bfd_vma         bfd_getb32         PARAMS ((const unsigned char *));
 530 bfd_vma         bfd_getl32         PARAMS ((const unsigned char *));
 531 bfd_signed_vma  bfd_getb_signed_32 PARAMS ((const unsigned char *));
 532 bfd_signed_vma  bfd_getl_signed_32 PARAMS ((const unsigned char *));
 533 bfd_vma         bfd_getb16         PARAMS ((const unsigned char *));
 534 bfd_vma         bfd_getl16         PARAMS ((const unsigned char *));
 535 bfd_signed_vma  bfd_getb_signed_16 PARAMS ((const unsigned char *));
 536 bfd_signed_vma  bfd_getl_signed_16 PARAMS ((const unsigned char *));
 537 void            bfd_putb64         PARAMS ((bfd_vma, unsigned char *));
 538 void            bfd_putl64         PARAMS ((bfd_vma, unsigned char *));
 539 void            bfd_putb32         PARAMS ((bfd_vma, unsigned char *));
 540 void            bfd_putl32         PARAMS ((bfd_vma, unsigned char *));
 541 void            bfd_putb16         PARAMS ((bfd_vma, unsigned char *));
 542 void            bfd_putl16         PARAMS ((bfd_vma, unsigned char *));
 543 \f
 544 /* Externally visible ECOFF routines.  */
 545
 546 #if defined(__STDC__) || defined(ALMOST_STDC)
 547 struct ecoff_debug_info;
 548 struct ecoff_debug_swap;
 549 struct ecoff_extr;
 550 struct symbol_cache_entry;
 551 struct bfd_link_info;
 552 struct bfd_link_hash_entry;
 553 struct bfd_elf_version_tree;
 554 #endif
 555 extern bfd_vma bfd_ecoff_get_gp_value PARAMS ((bfd * abfd));
 556 extern boolean bfd_ecoff_set_gp_value PARAMS ((bfd *abfd, bfd_vma gp_value));
 557 extern boolean bfd_ecoff_set_regmasks
 558   PARAMS ((bfd *abfd, unsigned long gprmask, unsigned long fprmask,
 559            unsigned long *cprmask));
 560 extern PTR bfd_ecoff_debug_init
 561   PARAMS ((bfd *output_bfd, struct ecoff_debug_info *output_debug,
 562            const struct ecoff_debug_swap *output_swap,
 563            struct bfd_link_info *));
 564 extern void bfd_ecoff_debug_free
 565   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 566            const struct ecoff_debug_swap *output_swap,
 567            struct bfd_link_info *));
 568 extern boolean bfd_ecoff_debug_accumulate
 569   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 570            const struct ecoff_debug_swap *output_swap,
 571            bfd *input_bfd, struct ecoff_debug_info *input_debug,
 572            const struct ecoff_debug_swap *input_swap,
 573            struct bfd_link_info *));
 574 extern boolean bfd_ecoff_debug_accumulate_other
 575   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 576            const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 577            struct bfd_link_info *));
 578 extern boolean bfd_ecoff_debug_externals
 579   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 580            const struct ecoff_debug_swap *swap,
 581            boolean relocateable,
 582            boolean (*get_extr) (struct symbol_cache_entry *,
 583                                 struct ecoff_extr *),
 584            void (*set_index) (struct symbol_cache_entry *,
 585                               bfd_size_type)));
 586 extern boolean bfd_ecoff_debug_one_external
 587   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 588            const struct ecoff_debug_swap *swap,
 589            const char *name, struct ecoff_extr *esym));
 590 extern bfd_size_type bfd_ecoff_debug_size
 591   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 592            const struct ecoff_debug_swap *swap));
 593 extern boolean bfd_ecoff_write_debug
 594   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 595            const struct ecoff_debug_swap *swap, file_ptr where));
 596 extern boolean bfd_ecoff_write_accumulated_debug
 597   PARAMS ((PTR handle, bfd *abfd, struct ecoff_debug_info *debug,
 598            const struct ecoff_debug_swap *swap,
 599            struct bfd_link_info *info, file_ptr where));
 600 extern boolean bfd_mips_ecoff_create_embedded_relocs
 601   PARAMS ((bfd *, struct bfd_link_info *, struct sec *, struct sec *,
 602            char **));
 603
 604 /* Externally visible ELF routines.  */
 605
 606 struct bfd_link_needed_list
 607 {
 608   struct bfd_link_needed_list *next;
 609   bfd *by;
 610   const char *name;
 611 };
 612
 613 extern boolean bfd_elf32_record_link_assignment
 614   PARAMS ((bfd *, struct bfd_link_info *, const char *, boolean));
 615 extern boolean bfd_elf64_record_link_assignment
 616   PARAMS ((bfd *, struct bfd_link_info *, const char *, boolean));
 617 extern struct bfd_link_needed_list *bfd_elf_get_needed_list
 618   PARAMS ((bfd *, struct bfd_link_info *));
 619 extern boolean bfd_elf_get_bfd_needed_list
 620   PARAMS ((bfd *, struct bfd_link_needed_list **));
 621 extern boolean bfd_elf32_size_dynamic_sections
 622   PARAMS ((bfd *, const char *, const char *, boolean, const char *,
 623            const char * const *, struct bfd_link_info *, struct sec **,
 624            struct bfd_elf_version_tree *));
 625 extern boolean bfd_elf64_size_dynamic_sections
 626   PARAMS ((bfd *, const char *, const char *, boolean, const char *,
 627            const char * const *, struct bfd_link_info *, struct sec **,
 628            struct bfd_elf_version_tree *));
 629 extern void bfd_elf_set_dt_needed_name PARAMS ((bfd *, const char *));
 630 extern void bfd_elf_set_dt_needed_soname PARAMS ((bfd *, const char *));
 631 extern const char *bfd_elf_get_dt_soname PARAMS ((bfd *));
 632 extern struct bfd_link_needed_list *bfd_elf_get_runpath_list
 633   PARAMS ((bfd *, struct bfd_link_info *));
 634
 635 /* Return an upper bound on the number of bytes required to store a
 636    copy of ABFD's program header table entries.  Return -1 if an error
 637    occurs; bfd_get_error will return an appropriate code.  */
 638 extern long bfd_get_elf_phdr_upper_bound PARAMS ((bfd *abfd));
 639
 640 /* Copy ABFD's program header table entries to *PHDRS.  The entries
 641    will be stored as an array of Elf_Internal_Phdr structures, as
 642    defined in include/elf/internal.h.  To find out how large the
 643    buffer needs to be, call bfd_get_elf_phdr_upper_bound.
 644
 645    Return the number of program header table entries read, or -1 if an
 646    error occurs; bfd_get_error will return an appropriate code.  */
 647 extern int bfd_get_elf_phdrs PARAMS ((bfd *abfd, void *phdrs));
 648
 649 /* Return the arch_size field of an elf bfd, or -1 if not elf.  */
 650 extern int bfd_get_arch_size PARAMS ((bfd *));
 651
 652 /* Return true if address "naturally" sign extends, or -1 if not elf. */
 653 extern int bfd_get_sign_extend_vma PARAMS ((bfd *));
 654
 655 /* SunOS shared library support routines for the linker.  */
 656
 657 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list
 658   PARAMS ((bfd *, struct bfd_link_info *));
 659 extern boolean bfd_sunos_record_link_assignment
 660   PARAMS ((bfd *, struct bfd_link_info *, const char *));
 661 extern boolean bfd_sunos_size_dynamic_sections
 662   PARAMS ((bfd *, struct bfd_link_info *, struct sec **, struct sec **,
 663            struct sec **));
 664
 665 /* Linux shared library support routines for the linker.  */
 666
 667 extern boolean bfd_i386linux_size_dynamic_sections
 668   PARAMS ((bfd *, struct bfd_link_info *));
 669 extern boolean bfd_m68klinux_size_dynamic_sections
 670   PARAMS ((bfd *, struct bfd_link_info *));
 671 extern boolean bfd_sparclinux_size_dynamic_sections
 672   PARAMS ((bfd *, struct bfd_link_info *));
 673
 674 /* mmap hacks */
 675
 676 struct _bfd_window_internal;
 677 typedef struct _bfd_window_internal bfd_window_internal;
 678
 679 typedef struct _bfd_window {
 680   /* What the user asked for.  */
 681   PTR data;
 682   bfd_size_type size;
 683   /* The actual window used by BFD.  Small user-requested read-only
 684      regions sharing a page may share a single window into the object
 685      file.  Read-write versions shouldn't until I've fixed things to
 686      keep track of which portions have been claimed by the
 687      application; don't want to give the same region back when the
 688      application wants two writable copies!  */
 689   struct _bfd_window_internal *i;
 690 } bfd_window;
 691
 692 extern void bfd_init_window PARAMS ((bfd_window *));
 693 extern void bfd_free_window PARAMS ((bfd_window *));
 694 extern boolean bfd_get_file_window
 695   PARAMS ((bfd *, file_ptr, bfd_size_type, bfd_window *, boolean));
 696
 697 /* XCOFF support routines for the linker.  */
 698
 699 extern boolean bfd_xcoff_link_record_set
 700   PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
 701            bfd_size_type));
 702 extern boolean bfd_xcoff_import_symbol
 703   PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
 704            bfd_vma, const char *, const char *, const char *));
 705 extern boolean bfd_xcoff_export_symbol
 706   PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
 707            boolean));
 708 extern boolean bfd_xcoff_link_count_reloc
 709   PARAMS ((bfd *, struct bfd_link_info *, const char *));
 710 extern boolean bfd_xcoff_record_link_assignment
 711   PARAMS ((bfd *, struct bfd_link_info *, const char *));
 712 extern boolean bfd_xcoff_size_dynamic_sections
 713   PARAMS ((bfd *, struct bfd_link_info *, const char *, const char *,
 714            unsigned long, unsigned long, unsigned long, boolean,
 715            int, boolean, boolean, struct sec **));
 716
 717 /* Externally visible COFF routines.  */
 718
 719 #if defined(__STDC__) || defined(ALMOST_STDC)
 720 struct internal_syment;
 721 union internal_auxent;
 722 #endif
 723
 724 extern boolean bfd_coff_get_syment
 725   PARAMS ((bfd *, struct symbol_cache_entry *, struct internal_syment *));
 726
 727 extern boolean bfd_coff_get_auxent
 728   PARAMS ((bfd *, struct symbol_cache_entry *, int, union internal_auxent *));
 729
 730 extern boolean bfd_coff_set_symbol_class
 731   PARAMS ((bfd *, struct symbol_cache_entry *, unsigned int));
 732
 733 extern boolean bfd_m68k_coff_create_embedded_relocs
 734   PARAMS ((bfd *, struct bfd_link_info *, struct sec *, struct sec *,
 735            char **));
 736
 737 /* ARM Interworking support.  Called from linker.  */
 738 extern boolean bfd_arm_allocate_interworking_sections
 739   PARAMS ((struct bfd_link_info *));
 740
 741 extern boolean bfd_arm_process_before_allocation
 742   PARAMS ((bfd *, struct bfd_link_info *, int));
 743
 744 extern boolean bfd_arm_get_bfd_for_interworking
 745   PARAMS ((bfd *, struct bfd_link_info *));
 746
 747 /* PE ARM Interworking support.  Called from linker.  */
 748 extern boolean bfd_arm_pe_allocate_interworking_sections
 749   PARAMS ((struct bfd_link_info *));
 750
 751 extern boolean bfd_arm_pe_process_before_allocation
 752   PARAMS ((bfd *, struct bfd_link_info *, int));
 753
 754 extern boolean bfd_arm_pe_get_bfd_for_interworking
 755   PARAMS ((bfd *, struct bfd_link_info *));
 756
 757 /* ELF ARM Interworking support.  Called from linker.  */
 758 extern boolean bfd_elf32_arm_allocate_interworking_sections
 759   PARAMS ((struct bfd_link_info *));
 760
 761 extern boolean bfd_elf32_arm_process_before_allocation
 762   PARAMS ((bfd *, struct bfd_link_info *, int));
 763
 764 extern boolean bfd_elf32_arm_get_bfd_for_interworking
 765   PARAMS ((bfd *, struct bfd_link_info *));
 766
 767 /* TI COFF load page support. */
 768 extern void bfd_ticoff_set_section_load_page
 769   PARAMS ((struct sec *, int));
 770
 771 extern int bfd_ticoff_get_section_load_page
 772   PARAMS ((struct sec *));
 773
 774 /* And more from the source.  */
 775 void
 776 bfd_init PARAMS ((void));
 777
 778 bfd *
 779 bfd_openr PARAMS ((CONST char *filename, CONST char *target));
 780
 781 bfd *
 782 bfd_fdopenr PARAMS ((CONST char *filename, CONST char *target, int fd));
 783
 784 bfd *
 785 bfd_openstreamr PARAMS ((const char *, const char *, PTR));
 786
 787 bfd *
 788 bfd_openw PARAMS ((CONST char *filename, CONST char *target));
 789
 790 boolean
 791 bfd_close PARAMS ((bfd *abfd));
 792
 793 boolean
 794 bfd_close_all_done PARAMS ((bfd *));
 795
 796 bfd *
 797 bfd_create PARAMS ((CONST char *filename, bfd *templ));
 798
 799 boolean
 800 bfd_make_writable PARAMS ((bfd *abfd));
 801
 802 boolean
 803 bfd_make_readable PARAMS ((bfd *abfd));
 804
 805
 806 /* Byte swapping macros for user section data.  */
 807
 808 #define bfd_put_8(abfd, val, ptr) \
 809                 ((void) (*((unsigned char *)(ptr)) = (unsigned char)(val)))
 810 #define bfd_put_signed_8 \
 811                bfd_put_8
 812 #define bfd_get_8(abfd, ptr) \
 813                 (*(unsigned char *)(ptr))
 814 #define bfd_get_signed_8(abfd, ptr) \
 815                ((*(unsigned char *)(ptr) ^ 0x80) - 0x80)
 816
 817 #define bfd_put_16(abfd, val, ptr) \
 818                 BFD_SEND(abfd, bfd_putx16, ((val),(ptr)))
 819 #define bfd_put_signed_16 \
 820                 bfd_put_16
 821 #define bfd_get_16(abfd, ptr) \
 822                 BFD_SEND(abfd, bfd_getx16, (ptr))
 823 #define bfd_get_signed_16(abfd, ptr) \
 824                 BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
 825
 826 #define bfd_put_32(abfd, val, ptr) \
 827                 BFD_SEND(abfd, bfd_putx32, ((val),(ptr)))
 828 #define bfd_put_signed_32 \
 829                 bfd_put_32
 830 #define bfd_get_32(abfd, ptr) \
 831                 BFD_SEND(abfd, bfd_getx32, (ptr))
 832 #define bfd_get_signed_32(abfd, ptr) \
 833                 BFD_SEND(abfd, bfd_getx_signed_32, (ptr))
 834
 835 #define bfd_put_64(abfd, val, ptr) \
 836                 BFD_SEND(abfd, bfd_putx64, ((val), (ptr)))
 837 #define bfd_put_signed_64 \
 838                 bfd_put_64
 839 #define bfd_get_64(abfd, ptr) \
 840                 BFD_SEND(abfd, bfd_getx64, (ptr))
 841 #define bfd_get_signed_64(abfd, ptr) \
 842                 BFD_SEND(abfd, bfd_getx_signed_64, (ptr))
 843
 844 #define bfd_get(bits, abfd, ptr)                               \
 845                 ((bits) == 8 ? bfd_get_8 (abfd, ptr)           \
 846                 : (bits) == 16 ? bfd_get_16 (abfd, ptr)        \
 847                 : (bits) == 32 ? bfd_get_32 (abfd, ptr)        \
 848                 : (bits) == 64 ? bfd_get_64 (abfd, ptr)        \
 849                 : (abort (), (bfd_vma) - 1))
 850
 851 #define bfd_put(bits, abfd, val, ptr)                          \
 852                 ((bits) == 8 ? bfd_put_8 (abfd, val, ptr)      \
 853                 : (bits) == 16 ? bfd_put_16 (abfd, val, ptr)   \
 854                 : (bits) == 32 ? bfd_put_32 (abfd, val, ptr)   \
 855                 : (bits) == 64 ? bfd_put_64 (abfd, val, ptr)   \
 856                 : (abort (), (void) 0))
 857
 858
 859 /* Byte swapping macros for file header data.  */
 860
 861 #define bfd_h_put_8(abfd, val, ptr) \
 862                bfd_put_8 (abfd, val, ptr)
 863 #define bfd_h_put_signed_8(abfd, val, ptr) \
 864                bfd_put_8 (abfd, val, ptr)
 865 #define bfd_h_get_8(abfd, ptr) \
 866                bfd_get_8 (abfd, ptr)
 867 #define bfd_h_get_signed_8(abfd, ptr) \
 868                bfd_get_signed_8 (abfd, ptr)
 869
 870 #define bfd_h_put_16(abfd, val, ptr) \
 871                 BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
 872 #define bfd_h_put_signed_16 \
 873                 bfd_h_put_16
 874 #define bfd_h_get_16(abfd, ptr) \
 875                 BFD_SEND(abfd, bfd_h_getx16,(ptr))
 876 #define bfd_h_get_signed_16(abfd, ptr) \
 877                 BFD_SEND(abfd, bfd_h_getx_signed_16, (ptr))
 878
 879 #define bfd_h_put_32(abfd, val, ptr) \
 880                 BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
 881 #define bfd_h_put_signed_32 \
 882                 bfd_h_put_32
 883 #define bfd_h_get_32(abfd, ptr) \
 884                 BFD_SEND(abfd, bfd_h_getx32,(ptr))
 885 #define bfd_h_get_signed_32(abfd, ptr) \
 886                 BFD_SEND(abfd, bfd_h_getx_signed_32, (ptr))
 887
 888 #define bfd_h_put_64(abfd, val, ptr) \
 889                 BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
 890 #define bfd_h_put_signed_64 \
 891                 bfd_h_put_64
 892 #define bfd_h_get_64(abfd, ptr) \
 893                 BFD_SEND(abfd, bfd_h_getx64,(ptr))
 894 #define bfd_h_get_signed_64(abfd, ptr) \
 895                 BFD_SEND(abfd, bfd_h_getx_signed_64, (ptr))
 896
 897 /* This structure is used for a comdat section, as in PE.  A comdat
 898    section is associated with a particular symbol.  When the linker
 899    sees a comdat section, it keeps only one of the sections with a
 900    given name and associated with a given symbol.  */
 901
 902 struct bfd_comdat_info
 903 {
 904   /* The name of the symbol associated with a comdat section.  */
 905   const char *name;
 906
 907   /* The local symbol table index of the symbol associated with a
 908      comdat section.  This is only meaningful to the object file format
 909      specific code; it is not an index into the list returned by
 910      bfd_canonicalize_symtab.  */
 911   long symbol;
 912
 913   /* If this section is being discarded, the linker uses this field
 914      to point to the input section which is being kept.  */
 915   struct sec *sec;
 916 };
 917
 918 typedef struct sec
 919 {
 920   /* The name of the section; the name isn't a copy, the pointer is
 921      the same as that passed to bfd_make_section.  */
 922
 923   const char *name;
 924
 925   /* A unique sequence number.  */
 926
 927   int id;
 928
 929   /* Which section is it; 0..nth.  */
 930
 931   int index;
 932
 933   /* The next section in the list belonging to the BFD, or NULL.  */
 934
 935   struct sec *next;
 936
 937   /* The field flags contains attributes of the section. Some
 938      flags are read in from the object file, and some are
 939      synthesized from other information.  */
 940
 941   flagword flags;
 942
 943 #define SEC_NO_FLAGS   0x000
 944
 945   /* Tells the OS to allocate space for this section when loading.
 946      This is clear for a section containing debug information only.  */
 947 #define SEC_ALLOC      0x001
 948
 949   /* Tells the OS to load the section from the file when loading.
 950      This is clear for a .bss section.  */
 951 #define SEC_LOAD       0x002
 952
 953   /* The section contains data still to be relocated, so there is
 954      some relocation information too.  */
 955 #define SEC_RELOC      0x004
 956
 957 #if 0   /* Obsolete ? */
 958 #define SEC_BALIGN     0x008
 959 #endif
 960
 961   /* A signal to the OS that the section contains read only data.  */
 962 #define SEC_READONLY   0x010
 963
 964   /* The section contains code only.  */
 965 #define SEC_CODE       0x020
 966
 967   /* The section contains data only.  */
 968 #define SEC_DATA       0x040
 969
 970   /* The section will reside in ROM.  */
 971 #define SEC_ROM        0x080
 972
 973   /* The section contains constructor information. This section
 974      type is used by the linker to create lists of constructors and
 975      destructors used by <<g++>>. When a back end sees a symbol
 976      which should be used in a constructor list, it creates a new
 977      section for the type of name (e.g., <<__CTOR_LIST__>>), attaches
 978      the symbol to it, and builds a relocation. To build the lists
 979      of constructors, all the linker has to do is catenate all the
 980      sections called <<__CTOR_LIST__>> and relocate the data
 981      contained within - exactly the operations it would peform on
 982      standard data.  */
 983 #define SEC_CONSTRUCTOR 0x100
 984
 985   /* The section is a constructor, and should be placed at the
 986      end of the text, data, or bss section(?).  */
 987 #define SEC_CONSTRUCTOR_TEXT 0x1100
 988 #define SEC_CONSTRUCTOR_DATA 0x2100
 989 #define SEC_CONSTRUCTOR_BSS  0x3100
 990
 991   /* The section has contents - a data section could be
 992      <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>; a debug section could be
 993      <<SEC_HAS_CONTENTS>>  */
 994 #define SEC_HAS_CONTENTS 0x200
 995
 996   /* An instruction to the linker to not output the section
 997      even if it has information which would normally be written.  */
 998 #define SEC_NEVER_LOAD 0x400
 999
1000   /* The section is a COFF shared library section.  This flag is
1001      only for the linker.  If this type of section appears in
1002      the input file, the linker must copy it to the output file
1003      without changing the vma or size.  FIXME: Although this
1004      was originally intended to be general, it really is COFF
1005      specific (and the flag was renamed to indicate this).  It
1006      might be cleaner to have some more general mechanism to
1007      allow the back end to control what the linker does with
1008      sections.  */
1009 #define SEC_COFF_SHARED_LIBRARY 0x800
1010
1011   /* The section has GOT references.  This flag is only for the
1012      linker, and is currently only used by the elf32-hppa back end.
1013      It will be set if global offset table references were detected
1014      in this section, which indicate to the linker that the section
1015      contains PIC code, and must be handled specially when doing a
1016      static link.  */
1017 #define SEC_HAS_GOT_REF 0x4000
1018
1019   /* The section contains common symbols (symbols may be defined
1020      multiple times, the value of a symbol is the amount of
1021      space it requires, and the largest symbol value is the one
1022      used).  Most targets have exactly one of these (which we
1023      translate to bfd_com_section_ptr), but ECOFF has two.  */
1024 #define SEC_IS_COMMON 0x8000
1025
1026   /* The section contains only debugging information.  For
1027      example, this is set for ELF .debug and .stab sections.
1028      strip tests this flag to see if a section can be
1029      discarded.  */
1030 #define SEC_DEBUGGING 0x10000
1031
1032   /* The contents of this section are held in memory pointed to
1033      by the contents field.  This is checked by bfd_get_section_contents,
1034      and the data is retrieved from memory if appropriate.  */
1035 #define SEC_IN_MEMORY 0x20000
1036
1037   /* The contents of this section are to be excluded by the
1038      linker for executable and shared objects unless those
1039      objects are to be further relocated.  */
1040 #define SEC_EXCLUDE 0x40000
1041
1042   /* The contents of this section are to be sorted by the
1043      based on the address specified in the associated symbol
1044      table.  */
1045 #define SEC_SORT_ENTRIES 0x80000
1046
1047   /* When linking, duplicate sections of the same name should be
1048      discarded, rather than being combined into a single section as
1049      is usually done.  This is similar to how common symbols are
1050      handled.  See SEC_LINK_DUPLICATES below.  */
1051 #define SEC_LINK_ONCE 0x100000
1052
1053   /* If SEC_LINK_ONCE is set, this bitfield describes how the linker
1054      should handle duplicate sections.  */
1055 #define SEC_LINK_DUPLICATES 0x600000
1056
1057   /* This value for SEC_LINK_DUPLICATES means that duplicate
1058      sections with the same name should simply be discarded.  */
1059 #define SEC_LINK_DUPLICATES_DISCARD 0x0
1060
1061   /* This value for SEC_LINK_DUPLICATES means that the linker
1062      should warn if there are any duplicate sections, although
1063      it should still only link one copy.  */
1064 #define SEC_LINK_DUPLICATES_ONE_ONLY 0x200000
1065
1066   /* This value for SEC_LINK_DUPLICATES means that the linker
1067      should warn if any duplicate sections are a different size.  */
1068 #define SEC_LINK_DUPLICATES_SAME_SIZE 0x400000
1069
1070   /* This value for SEC_LINK_DUPLICATES means that the linker
1071      should warn if any duplicate sections contain different
1072      contents.  */
1073 #define SEC_LINK_DUPLICATES_SAME_CONTENTS 0x600000
1074
1075   /* This section was created by the linker as part of dynamic
1076      relocation or other arcane processing.  It is skipped when
1077      going through the first-pass output, trusting that someone
1078      else up the line will take care of it later.  */
1079 #define SEC_LINKER_CREATED 0x800000
1080
1081   /* This section should not be subject to garbage collection.  */
1082 #define SEC_KEEP 0x1000000
1083
1084   /* This section contains "short" data, and should be placed
1085      "near" the GP.  */
1086 #define SEC_SMALL_DATA 0x2000000
1087
1088   /* This section contains data which may be shared with other
1089      executables or shared objects.  */
1090 #define SEC_SHARED 0x4000000
1091
1092   /* When a section with this flag is being linked, then if the size of
1093      the input section is less than a page, it should not cross a page
1094      boundary.  If the size of the input section is one page or more, it
1095      should be aligned on a page boundary.  */
1096 #define SEC_BLOCK 0x8000000
1097
1098   /* Conditionally link this section; do not link if there are no
1099      references found to any symbol in the section.  */
1100 #define SEC_CLINK 0x10000000
1101
1102   /*  End of section flags.  */
1103
1104   /* Some internal packed boolean fields.  */
1105
1106   /* See the vma field.  */
1107   unsigned int user_set_vma : 1;
1108
1109   /* Whether relocations have been processed.  */
1110   unsigned int reloc_done : 1;
1111
1112   /* A mark flag used by some of the linker backends.  */
1113   unsigned int linker_mark : 1;
1114
1115   /* A mark flag used by some linker backends for garbage collection.  */
1116   unsigned int gc_mark : 1;
1117
1118   /* Used by the ELF code to mark sections which have been allocated to segments.  */
1119   unsigned int segment_mark : 1;
1120
1121   /* End of internal packed boolean fields.  */
1122
1123   /*  The virtual memory address of the section - where it will be
1124       at run time.  The symbols are relocated against this.  The
1125       user_set_vma flag is maintained by bfd; if it's not set, the
1126       backend can assign addresses (for example, in <<a.out>>, where
1127       the default address for <<.data>> is dependent on the specific
1128       target and various flags).  */
1129
1130   bfd_vma vma;
1131
1132   /*  The load address of the section - where it would be in a
1133       rom image; really only used for writing section header
1134       information. */
1135
1136   bfd_vma lma;
1137
1138   /* The size of the section in octets, as it will be output.
1139      Contains a value even if the section has no contents (e.g., the
1140      size of <<.bss>>).  This will be filled in after relocation.  */
1141
1142   bfd_size_type _cooked_size;
1143
1144   /* The original size on disk of the section, in octets.  Normally this
1145      value is the same as the size, but if some relaxing has
1146      been done, then this value will be bigger.  */
1147
1148   bfd_size_type _raw_size;
1149
1150   /* If this section is going to be output, then this value is the
1151      offset in *bytes* into the output section of the first byte in the
1152      input section (byte ==> smallest addressable unit on the
1153      target).  In most cases, if this was going to start at the
1154      100th octet (8-bit quantity) in the output section, this value
1155      would be 100.  However, if the target byte size is 16 bits
1156      (bfd_octets_per_byte is "2"), this value would be 50.  */
1157
1158   bfd_vma output_offset;
1159
1160   /* The output section through which to map on output.  */
1161
1162   struct sec *output_section;
1163
1164   /* The alignment requirement of the section, as an exponent of 2 -
1165      e.g., 3 aligns to 2^3 (or 8).  */
1166
1167   unsigned int alignment_power;
1168
1169   /* If an input section, a pointer to a vector of relocation
1170      records for the data in this section.  */
1171
1172   struct reloc_cache_entry *relocation;
1173
1174   /* If an output section, a pointer to a vector of pointers to
1175      relocation records for the data in this section.  */
1176
1177   struct reloc_cache_entry **orelocation;
1178
1179   /* The number of relocation records in one of the above  */
1180
1181   unsigned reloc_count;
1182
1183   /* Information below is back end specific - and not always used
1184      or updated.  */
1185
1186   /* File position of section data.  */
1187
1188   file_ptr filepos;
1189
1190   /* File position of relocation info.  */
1191
1192   file_ptr rel_filepos;
1193
1194   /* File position of line data.  */
1195
1196   file_ptr line_filepos;
1197
1198   /* Pointer to data for applications.  */
1199
1200   PTR userdata;
1201
1202   /* If the SEC_IN_MEMORY flag is set, this points to the actual
1203      contents.  */
1204   unsigned char *contents;
1205
1206   /* Attached line number information.  */
1207
1208   alent *lineno;
1209
1210   /* Number of line number records.  */
1211
1212   unsigned int lineno_count;
1213
1214   /* Optional information about a COMDAT entry; NULL if not COMDAT.  */
1215
1216   struct bfd_comdat_info *comdat;
1217
1218   /* When a section is being output, this value changes as more
1219      linenumbers are written out.  */
1220
1221   file_ptr moving_line_filepos;
1222
1223   /* What the section number is in the target world.  */
1224
1225   int target_index;
1226
1227   PTR used_by_bfd;
1228
1229   /* If this is a constructor section then here is a list of the
1230      relocations created to relocate items within it.  */
1231
1232   struct relent_chain *constructor_chain;
1233
1234   /* The BFD which owns the section.  */
1235
1236   bfd *owner;
1237
1238   /* A symbol which points at this section only */
1239   struct symbol_cache_entry *symbol;
1240   struct symbol_cache_entry **symbol_ptr_ptr;
1241
1242   struct bfd_link_order *link_order_head;
1243   struct bfd_link_order *link_order_tail;
1244 } asection ;
1245
1246 /* These sections are global, and are managed by BFD.  The application
1247    and target back end are not permitted to change the values in
1248    these sections.  New code should use the section_ptr macros rather
1249    than referring directly to the const sections.  The const sections
1250    may eventually vanish.  */
1251 #define BFD_ABS_SECTION_NAME "*ABS*"
1252 #define BFD_UND_SECTION_NAME "*UND*"
1253 #define BFD_COM_SECTION_NAME "*COM*"
1254 #define BFD_IND_SECTION_NAME "*IND*"
1255
1256 /* the absolute section */
1257 extern const asection bfd_abs_section;
1258 #define bfd_abs_section_ptr ((asection *) &bfd_abs_section)
1259 #define bfd_is_abs_section(sec) ((sec) == bfd_abs_section_ptr)
1260 /* Pointer to the undefined section */
1261 extern const asection bfd_und_section;
1262 #define bfd_und_section_ptr ((asection *) &bfd_und_section)
1263 #define bfd_is_und_section(sec) ((sec) == bfd_und_section_ptr)
1264 /* Pointer to the common section */
1265 extern const asection bfd_com_section;
1266 #define bfd_com_section_ptr ((asection *) &bfd_com_section)
1267 /* Pointer to the indirect section */
1268 extern const asection bfd_ind_section;
1269 #define bfd_ind_section_ptr ((asection *) &bfd_ind_section)
1270 #define bfd_is_ind_section(sec) ((sec) == bfd_ind_section_ptr)
1271
1272 extern const struct symbol_cache_entry * const bfd_abs_symbol;
1273 extern const struct symbol_cache_entry * const bfd_com_symbol;
1274 extern const struct symbol_cache_entry * const bfd_und_symbol;
1275 extern const struct symbol_cache_entry * const bfd_ind_symbol;
1276 #define bfd_get_section_size_before_reloc(section) \
1277      ((section)->reloc_done ? (abort (), (bfd_size_type) 1) \
1278                             : (section)->_raw_size)
1279 #define bfd_get_section_size_after_reloc(section) \
1280      ((section)->reloc_done ? (section)->_cooked_size \
1281                             : (abort (), (bfd_size_type) 1))
1282 asection *
1283 bfd_get_section_by_name PARAMS ((bfd *abfd, const char *name));
1284
1285 char *
1286 bfd_get_unique_section_name PARAMS ((bfd *abfd,
1287     const char *templat,
1288     int *count));
1289
1290 asection *
1291 bfd_make_section_old_way PARAMS ((bfd *abfd, const char *name));
1292
1293 asection *
1294 bfd_make_section_anyway PARAMS ((bfd *abfd, const char *name));
1295
1296 asection *
1297 bfd_make_section PARAMS ((bfd *, const char *name));
1298
1299 boolean
1300 bfd_set_section_flags PARAMS ((bfd *abfd, asection *sec, flagword flags));
1301
1302 void
1303 bfd_map_over_sections PARAMS ((bfd *abfd,
1304     void (*func)(bfd *abfd,
1305     asection *sect,
1306     PTR obj),
1307     PTR obj));
1308
1309 boolean
1310 bfd_set_section_size PARAMS ((bfd *abfd, asection *sec, bfd_size_type val));
1311
1312 boolean
1313 bfd_set_section_contents
1314  PARAMS ((bfd *abfd,
1315     asection *section,
1316     PTR data,
1317     file_ptr offset,
1318     bfd_size_type count));
1319
1320 boolean
1321 bfd_get_section_contents
1322  PARAMS ((bfd *abfd, asection *section, PTR location,
1323     file_ptr offset, bfd_size_type count));
1324
1325 boolean
1326 bfd_copy_private_section_data PARAMS ((bfd *ibfd, asection *isec, bfd *obfd, asection *osec));
1327
1328 #define bfd_copy_private_section_data(ibfd, isection, obfd, osection) \
1329      BFD_SEND (obfd, _bfd_copy_private_section_data, \
1330                (ibfd, isection, obfd, osection))
1331 void
1332 _bfd_strip_section_from_output
1333  PARAMS ((struct bfd_link_info *info, asection *section));
1334
1335 enum bfd_architecture
1336 {
1337   bfd_arch_unknown,   /* File arch not known */
1338   bfd_arch_obscure,   /* Arch known, not one of these */
1339   bfd_arch_m68k,      /* Motorola 68xxx */
1340 #define bfd_mach_m68000 1
1341 #define bfd_mach_m68008 2
1342 #define bfd_mach_m68010 3
1343 #define bfd_mach_m68020 4
1344 #define bfd_mach_m68030 5
1345 #define bfd_mach_m68040 6
1346 #define bfd_mach_m68060 7
1347 #define bfd_mach_cpu32  8
1348   bfd_arch_vax,       /* DEC Vax */
1349   bfd_arch_i960,      /* Intel 960 */
1350     /* The order of the following is important.
1351        lower number indicates a machine type that
1352        only accepts a subset of the instructions
1353        available to machines with higher numbers.
1354        The exception is the "ca", which is
1355        incompatible with all other machines except
1356        "core". */
1357
1358 #define bfd_mach_i960_core      1
1359 #define bfd_mach_i960_ka_sa     2
1360 #define bfd_mach_i960_kb_sb     3
1361 #define bfd_mach_i960_mc        4
1362 #define bfd_mach_i960_xa        5
1363 #define bfd_mach_i960_ca        6
1364 #define bfd_mach_i960_jx        7
1365 #define bfd_mach_i960_hx        8
1366
1367   bfd_arch_a29k,      /* AMD 29000 */
1368   bfd_arch_sparc,     /* SPARC */
1369 #define bfd_mach_sparc                 1
1370 /* The difference between v8plus and v9 is that v9 is a true 64 bit env.  */
1371 #define bfd_mach_sparc_sparclet        2
1372 #define bfd_mach_sparc_sparclite       3
1373 #define bfd_mach_sparc_v8plus          4
1374 #define bfd_mach_sparc_v8plusa         5 /* with ultrasparc add'ns */
1375 #define bfd_mach_sparc_sparclite_le    6
1376 #define bfd_mach_sparc_v9              7
1377 #define bfd_mach_sparc_v9a             8 /* with ultrasparc add'ns */
1378 /* Nonzero if MACH has the v9 instruction set.  */
1379 #define bfd_mach_sparc_v9_p(mach) \
1380   ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9a)
1381   bfd_arch_mips,      /* MIPS Rxxxx */
1382 #define bfd_mach_mips3000              3000
1383 #define bfd_mach_mips3900              3900
1384 #define bfd_mach_mips4000              4000
1385 #define bfd_mach_mips4010              4010
1386 #define bfd_mach_mips4100              4100
1387 #define bfd_mach_mips4111              4111
1388 #define bfd_mach_mips4300              4300
1389 #define bfd_mach_mips4400              4400
1390 #define bfd_mach_mips4600              4600
1391 #define bfd_mach_mips4650              4650
1392 #define bfd_mach_mips5000              5000
1393 #define bfd_mach_mips6000              6000
1394 #define bfd_mach_mips8000              8000
1395 #define bfd_mach_mips10000             10000
1396 #define bfd_mach_mips16                16
1397 #define bfd_mach_mips4K                32
1398   bfd_arch_i386,      /* Intel 386 */
1399 #define bfd_mach_i386_i386 0
1400 #define bfd_mach_i386_i8086 1
1401 #define bfd_mach_i386_i386_intel_syntax 2
1402   bfd_arch_we32k,     /* AT&T WE32xxx */
1403   bfd_arch_tahoe,     /* CCI/Harris Tahoe */
1404   bfd_arch_i860,      /* Intel 860 */
1405   bfd_arch_i370,      /* IBM 360/370 Mainframes */
1406   bfd_arch_romp,      /* IBM ROMP PC/RT */
1407   bfd_arch_alliant,   /* Alliant */
1408   bfd_arch_convex,    /* Convex */
1409   bfd_arch_m88k,      /* Motorola 88xxx */
1410   bfd_arch_pyramid,   /* Pyramid Technology */
1411   bfd_arch_h8300,     /* Hitachi H8/300 */
1412 #define bfd_mach_h8300   1
1413 #define bfd_mach_h8300h  2
1414 #define bfd_mach_h8300s  3
1415   bfd_arch_powerpc,   /* PowerPC */
1416 #define bfd_mach_ppc           0
1417 #define bfd_mach_ppc_403       403
1418 #define bfd_mach_ppc_403gc     4030
1419 #define bfd_mach_ppc_505       505
1420 #define bfd_mach_ppc_601       601
1421 #define bfd_mach_ppc_602       602
1422 #define bfd_mach_ppc_603       603
1423 #define bfd_mach_ppc_ec603e    6031
1424 #define bfd_mach_ppc_604       604
1425 #define bfd_mach_ppc_620       620
1426 #define bfd_mach_ppc_630       630
1427 #define bfd_mach_ppc_750       750
1428 #define bfd_mach_ppc_860       860
1429 #define bfd_mach_ppc_a35       35
1430 #define bfd_mach_ppc_rs64ii    642
1431 #define bfd_mach_ppc_rs64iii   643
1432 #define bfd_mach_ppc_7400      7400
1433   bfd_arch_rs6000,    /* IBM RS/6000 */
1434 #define bfd_mach_rs6k          0
1435 #define bfd_mach_rs6k_rs1      6001
1436 #define bfd_mach_rs6k_rsc      6003
1437 #define bfd_mach_rs6k_rs2      6002
1438   bfd_arch_hppa,      /* HP PA RISC */
1439   bfd_arch_d10v,      /* Mitsubishi D10V */
1440 #define bfd_mach_d10v          0
1441 #define bfd_mach_d10v_ts2      2
1442 #define bfd_mach_d10v_ts3      3
1443   bfd_arch_d30v,      /* Mitsubishi D30V */
1444   bfd_arch_m68hc11,   /* Motorola 68HC11 */
1445   bfd_arch_m68hc12,   /* Motorola 68HC12 */
1446   bfd_arch_z8k,       /* Zilog Z8000 */
1447 #define bfd_mach_z8001         1
1448 #define bfd_mach_z8002         2
1449   bfd_arch_h8500,     /* Hitachi H8/500 */
1450   bfd_arch_sh,        /* Hitachi SH */
1451 #define bfd_mach_sh            0
1452 #define bfd_mach_sh2        0x20
1453 #define bfd_mach_sh_dsp     0x2d
1454 #define bfd_mach_sh3        0x30
1455 #define bfd_mach_sh3_dsp    0x3d
1456 #define bfd_mach_sh3e       0x3e
1457 #define bfd_mach_sh4        0x40
1458   bfd_arch_alpha,     /* Dec Alpha */
1459 #define bfd_mach_alpha_ev4  0x10
1460 #define bfd_mach_alpha_ev5  0x20
1461 #define bfd_mach_alpha_ev6  0x30
1462   bfd_arch_arm,       /* Advanced Risc Machines ARM */
1463 #define bfd_mach_arm_2         1
1464 #define bfd_mach_arm_2a        2
1465 #define bfd_mach_arm_3         3
1466 #define bfd_mach_arm_3M        4
1467 #define bfd_mach_arm_4         5
1468 #define bfd_mach_arm_4T        6
1469 #define bfd_mach_arm_5         7
1470 #define bfd_mach_arm_5T        8
1471   bfd_arch_ns32k,     /* National Semiconductors ns32000 */
1472   bfd_arch_w65,       /* WDC 65816 */
1473   bfd_arch_tic30,     /* Texas Instruments TMS320C30 */
1474   bfd_arch_tic54x,    /* Texas Instruments TMS320C54X */
1475   bfd_arch_tic80,     /* TI TMS320c80 (MVP) */
1476   bfd_arch_v850,      /* NEC V850 */
1477 #define bfd_mach_v850          0
1478 #define bfd_mach_v850e         'E'
1479 #define bfd_mach_v850ea        'A'
1480   bfd_arch_arc,       /* Argonaut RISC Core */
1481 #define bfd_mach_arc_base 0
1482   bfd_arch_m32r,      /* Mitsubishi M32R/D */
1483 #define bfd_mach_m32r          0 /* backwards compatibility */
1484 #define bfd_mach_m32rx         'x'
1485   bfd_arch_mn10200,   /* Matsushita MN10200 */
1486   bfd_arch_mn10300,   /* Matsushita MN10300 */
1487 #define bfd_mach_mn10300               300
1488 #define bfd_mach_am33          330
1489   bfd_arch_fr30,
1490 #define bfd_mach_fr30          0x46523330
1491   bfd_arch_mcore,
1492   bfd_arch_ia64,      /* HP/Intel ia64 */
1493   bfd_arch_pj,
1494   bfd_arch_avr,       /* Atmel AVR microcontrollers */
1495 #define bfd_mach_avr1          1
1496 #define bfd_mach_avr2          2
1497 #define bfd_mach_avr3          3
1498 #define bfd_mach_avr4          4
1499 #define bfd_mach_avr5          5
1500   bfd_arch_cris,      /* Axis CRIS */
1501   bfd_arch_last
1502   };
1503
1504 typedef struct bfd_arch_info
1505 {
1506   int bits_per_word;
1507   int bits_per_address;
1508   int bits_per_byte;
1509   enum bfd_architecture arch;
1510   unsigned long mach;
1511   const char *arch_name;
1512   const char *printable_name;
1513   unsigned int section_align_power;
1514   /* True if this is the default machine for the architecture.  */
1515   boolean the_default;
1516   const struct bfd_arch_info * (*compatible)
1517        PARAMS ((const struct bfd_arch_info *a,
1518                 const struct bfd_arch_info *b));
1519
1520   boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
1521
1522   const struct bfd_arch_info *next;
1523 } bfd_arch_info_type;
1524 const char *
1525 bfd_printable_name PARAMS ((bfd *abfd));
1526
1527 const bfd_arch_info_type *
1528 bfd_scan_arch PARAMS ((const char *string));
1529
1530 const char **
1531 bfd_arch_list PARAMS ((void));
1532
1533 const bfd_arch_info_type *
1534 bfd_arch_get_compatible PARAMS ((
1535     const bfd *abfd,
1536     const bfd *bbfd));
1537
1538 void
1539 bfd_set_arch_info PARAMS ((bfd *abfd, const bfd_arch_info_type *arg));
1540
1541 enum bfd_architecture
1542 bfd_get_arch PARAMS ((bfd *abfd));
1543
1544 unsigned long
1545 bfd_get_mach PARAMS ((bfd *abfd));
1546
1547 unsigned int
1548 bfd_arch_bits_per_byte PARAMS ((bfd *abfd));
1549
1550 unsigned int
1551 bfd_arch_bits_per_address PARAMS ((bfd *abfd));
1552
1553 const bfd_arch_info_type *
1554 bfd_get_arch_info PARAMS ((bfd *abfd));
1555
1556 const bfd_arch_info_type *
1557 bfd_lookup_arch
1558  PARAMS ((enum bfd_architecture
1559     arch,
1560     unsigned long machine));
1561
1562 const char *
1563 bfd_printable_arch_mach
1564  PARAMS ((enum bfd_architecture arch, unsigned long machine));
1565
1566 unsigned int
1567 bfd_octets_per_byte PARAMS ((bfd *abfd));
1568
1569 unsigned int
1570 bfd_arch_mach_octets_per_byte PARAMS ((enum bfd_architecture arch,
1571     unsigned long machine));
1572
1573 typedef enum bfd_reloc_status
1574 {
1575        /* No errors detected */
1576   bfd_reloc_ok,
1577
1578        /* The relocation was performed, but there was an overflow. */
1579   bfd_reloc_overflow,
1580
1581        /* The address to relocate was not within the section supplied. */
1582   bfd_reloc_outofrange,
1583
1584        /* Used by special functions */
1585   bfd_reloc_continue,
1586
1587        /* Unsupported relocation size requested. */
1588   bfd_reloc_notsupported,
1589
1590        /* Unused */
1591   bfd_reloc_other,
1592
1593        /* The symbol to relocate against was undefined. */
1594   bfd_reloc_undefined,
1595
1596        /* The relocation was performed, but may not be ok - presently
1597           generated only when linking i960 coff files with i960 b.out
1598           symbols.  If this type is returned, the error_message argument
1599           to bfd_perform_relocation will be set.  */
1600   bfd_reloc_dangerous
1601  }
1602  bfd_reloc_status_type;
1603
1604
1605 typedef struct reloc_cache_entry
1606 {
1607        /* A pointer into the canonical table of pointers  */
1608   struct symbol_cache_entry **sym_ptr_ptr;
1609
1610        /* offset in section */
1611   bfd_size_type address;
1612
1613        /* addend for relocation value */
1614   bfd_vma addend;
1615
1616        /* Pointer to how to perform the required relocation */
1617   reloc_howto_type *howto;
1618
1619 } arelent;
1620 enum complain_overflow
1621 {
1622        /* Do not complain on overflow. */
1623   complain_overflow_dont,
1624
1625        /* Complain if the bitfield overflows, whether it is considered
1626           as signed or unsigned. */
1627   complain_overflow_bitfield,
1628
1629        /* Complain if the value overflows when considered as signed
1630           number. */
1631   complain_overflow_signed,
1632
1633        /* Complain if the value overflows when considered as an
1634           unsigned number. */
1635   complain_overflow_unsigned
1636 };
1637
1638 struct reloc_howto_struct
1639 {
1640        /*  The type field has mainly a documentary use - the back end can
1641            do what it wants with it, though normally the back end's
1642            external idea of what a reloc number is stored
1643            in this field. For example, a PC relative word relocation
1644            in a coff environment has the type 023 - because that's
1645            what the outside world calls a R_PCRWORD reloc. */
1646   unsigned int type;
1647
1648        /*  The value the final relocation is shifted right by. This drops
1649            unwanted data from the relocation.  */
1650   unsigned int rightshift;
1651
1652        /*  The size of the item to be relocated.  This is *not* a
1653            power-of-two measure.  To get the number of bytes operated
1654            on by a type of relocation, use bfd_get_reloc_size.  */
1655   int size;
1656
1657        /*  The number of bits in the item to be relocated.  This is used
1658            when doing overflow checking.  */
1659   unsigned int bitsize;
1660
1661        /*  Notes that the relocation is relative to the location in the
1662            data section of the addend. The relocation function will
1663            subtract from the relocation value the address of the location
1664            being relocated. */
1665   boolean pc_relative;
1666
1667        /*  The bit position of the reloc value in the destination.
1668            The relocated value is left shifted by this amount. */
1669   unsigned int bitpos;
1670
1671        /* What type of overflow error should be checked for when
1672           relocating. */
1673   enum complain_overflow complain_on_overflow;
1674
1675        /* If this field is non null, then the supplied function is
1676           called rather than the normal function. This allows really
1677           strange relocation methods to be accomodated (e.g., i960 callj
1678           instructions). */
1679   bfd_reloc_status_type (*special_function)
1680                                    PARAMS ((bfd *abfd,
1681                                             arelent *reloc_entry,
1682                                             struct symbol_cache_entry *symbol,
1683                                             PTR data,
1684                                             asection *input_section,
1685                                             bfd *output_bfd,
1686                                             char **error_message));
1687
1688        /* The textual name of the relocation type. */
1689   char *name;
1690
1691        /* Some formats record a relocation addend in the section contents
1692           rather than with the relocation.  For ELF formats this is the
1693           distinction between USE_REL and USE_RELA (though the code checks
1694           for USE_REL == 1/0).  The value of this field is TRUE if the
1695           addend is recorded with the section contents; when performing a
1696           partial link (ld -r) the section contents (the data) will be
1697           modified.  The value of this field is FALSE if addends are
1698           recorded with the relocation (in arelent.addend); when performing
1699           a partial link the relocation will be modified.
1700           All relocations for all ELF USE_RELA targets should set this field
1701           to FALSE (values of TRUE should be looked on with suspicion).
1702           However, the converse is not true: not all relocations of all ELF
1703           USE_REL targets set this field to TRUE.  Why this is so is peculiar
1704           to each particular target.  For relocs that aren't used in partial
1705           links (e.g. GOT stuff) it doesn't matter what this is set to.  */
1706   boolean partial_inplace;
1707
1708        /* The src_mask selects which parts of the read in data
1709           are to be used in the relocation sum.  E.g., if this was an 8 bit
1710           byte of data which we read and relocated, this would be
1711           0x000000ff. When we have relocs which have an addend, such as
1712           sun4 extended relocs, the value in the offset part of a
1713           relocating field is garbage so we never use it. In this case
1714           the mask would be 0x00000000. */
1715   bfd_vma src_mask;
1716
1717        /* The dst_mask selects which parts of the instruction are replaced
1718           into the instruction. In most cases src_mask == dst_mask,
1719           except in the above special case, where dst_mask would be
1720           0x000000ff, and src_mask would be 0x00000000.   */
1721   bfd_vma dst_mask;
1722
1723        /* When some formats create PC relative instructions, they leave
1724           the value of the pc of the place being relocated in the offset
1725           slot of the instruction, so that a PC relative relocation can
1726           be made just by adding in an ordinary offset (e.g., sun3 a.out).
1727           Some formats leave the displacement part of an instruction
1728           empty (e.g., m88k bcs); this flag signals the fact.*/
1729   boolean pcrel_offset;
1730
1731 };
1732 #define HOWTO(C, R,S,B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
1733   {(unsigned)C,R,S,B, P, BI, O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC}
1734 #define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,complain_overflow_dont,FUNCTION, NAME,false,0,0,IN)
1735
1736 #define EMPTY_HOWTO(C) \
1737   HOWTO((C),0,0,0,false,0,complain_overflow_dont,NULL,NULL,false,0,0,false)
1738
1739 #define HOWTO_PREPARE(relocation, symbol)      \
1740   {                                            \
1741   if (symbol != (asymbol *)NULL) {             \
1742     if (bfd_is_com_section (symbol->section)) { \
1743       relocation = 0;                          \
1744     }                                          \
1745     else {                                     \
1746       relocation = symbol->value;              \
1747     }                                          \
1748   }                                            \
1749 }
1750 unsigned int
1751 bfd_get_reloc_size  PARAMS ((reloc_howto_type *));
1752
1753 typedef struct relent_chain {
1754   arelent relent;
1755   struct   relent_chain *next;
1756 } arelent_chain;
1757 bfd_reloc_status_type
1758
1759 bfd_check_overflow
1760  PARAMS ((enum complain_overflow how,
1761     unsigned int bitsize,
1762     unsigned int rightshift,
1763     unsigned int addrsize,
1764     bfd_vma relocation));
1765
1766 bfd_reloc_status_type
1767
1768 bfd_perform_relocation
1769  PARAMS ((bfd *abfd,
1770     arelent *reloc_entry,
1771     PTR data,
1772     asection *input_section,
1773     bfd *output_bfd,
1774     char **error_message));
1775
1776 bfd_reloc_status_type
1777
1778 bfd_install_relocation
1779  PARAMS ((bfd *abfd,
1780     arelent *reloc_entry,
1781     PTR data, bfd_vma data_start,
1782     asection *input_section,
1783     char **error_message));
1784
1785 enum bfd_reloc_code_real {
1786   _dummy_first_bfd_reloc_code_real,
1787
1788
1789 /* Basic absolute relocations of N bits. */
1790   BFD_RELOC_64,
1791   BFD_RELOC_32,
1792   BFD_RELOC_26,
1793   BFD_RELOC_24,
1794   BFD_RELOC_16,
1795   BFD_RELOC_14,
1796   BFD_RELOC_8,
1797
1798 /* PC-relative relocations.  Sometimes these are relative to the address
1799 of the relocation itself; sometimes they are relative to the start of
1800 the section containing the relocation.  It depends on the specific target.
1801
1802 The 24-bit relocation is used in some Intel 960 configurations. */
1803   BFD_RELOC_64_PCREL,
1804   BFD_RELOC_32_PCREL,
1805   BFD_RELOC_24_PCREL,
1806   BFD_RELOC_16_PCREL,
1807   BFD_RELOC_12_PCREL,
1808   BFD_RELOC_8_PCREL,
1809
1810 /* For ELF. */
1811   BFD_RELOC_32_GOT_PCREL,
1812   BFD_RELOC_16_GOT_PCREL,
1813   BFD_RELOC_8_GOT_PCREL,
1814   BFD_RELOC_32_GOTOFF,
1815   BFD_RELOC_16_GOTOFF,
1816   BFD_RELOC_LO16_GOTOFF,
1817   BFD_RELOC_HI16_GOTOFF,
1818   BFD_RELOC_HI16_S_GOTOFF,
1819   BFD_RELOC_8_GOTOFF,
1820   BFD_RELOC_32_PLT_PCREL,
1821   BFD_RELOC_24_PLT_PCREL,
1822   BFD_RELOC_16_PLT_PCREL,
1823   BFD_RELOC_8_PLT_PCREL,
1824   BFD_RELOC_32_PLTOFF,
1825   BFD_RELOC_16_PLTOFF,
1826   BFD_RELOC_LO16_PLTOFF,
1827   BFD_RELOC_HI16_PLTOFF,
1828   BFD_RELOC_HI16_S_PLTOFF,
1829   BFD_RELOC_8_PLTOFF,
1830
1831 /* Relocations used by 68K ELF. */
1832   BFD_RELOC_68K_GLOB_DAT,
1833   BFD_RELOC_68K_JMP_SLOT,
1834   BFD_RELOC_68K_RELATIVE,
1835
1836 /* Linkage-table relative. */
1837   BFD_RELOC_32_BASEREL,
1838   BFD_RELOC_16_BASEREL,
1839   BFD_RELOC_LO16_BASEREL,
1840   BFD_RELOC_HI16_BASEREL,
1841   BFD_RELOC_HI16_S_BASEREL,
1842   BFD_RELOC_8_BASEREL,
1843   BFD_RELOC_RVA,
1844
1845 /* Absolute 8-bit relocation, but used to form an address like 0xFFnn. */
1846   BFD_RELOC_8_FFnn,
1847
1848 /* These PC-relative relocations are stored as word displacements --
1849 i.e., byte displacements shifted right two bits.  The 30-bit word
1850 displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the
1851 SPARC.  (SPARC tools generally refer to this as <<WDISP30>>.)  The
1852 signed 16-bit displacement is used on the MIPS, and the 23-bit
1853 displacement is used on the Alpha. */
1854   BFD_RELOC_32_PCREL_S2,
1855   BFD_RELOC_16_PCREL_S2,
1856   BFD_RELOC_23_PCREL_S2,
1857
1858 /* High 22 bits and low 10 bits of 32-bit value, placed into lower bits of
1859 the target word.  These are used on the SPARC. */
1860   BFD_RELOC_HI22,
1861   BFD_RELOC_LO10,
1862
1863 /* For systems that allocate a Global Pointer register, these are
1864 displacements off that register.  These relocation types are
1865 handled specially, because the value the register will have is
1866 decided relatively late. */
1867   BFD_RELOC_GPREL16,
1868   BFD_RELOC_GPREL32,
1869
1870 /* Reloc types used for i960/b.out. */
1871   BFD_RELOC_I960_CALLJ,
1872
1873 /* SPARC ELF relocations.  There is probably some overlap with other
1874 relocation types already defined. */
1875   BFD_RELOC_NONE,
1876   BFD_RELOC_SPARC_WDISP22,
1877   BFD_RELOC_SPARC22,
1878   BFD_RELOC_SPARC13,
1879   BFD_RELOC_SPARC_GOT10,
1880   BFD_RELOC_SPARC_GOT13,
1881   BFD_RELOC_SPARC_GOT22,
1882   BFD_RELOC_SPARC_PC10,
1883   BFD_RELOC_SPARC_PC22,
1884   BFD_RELOC_SPARC_WPLT30,
1885   BFD_RELOC_SPARC_COPY,
1886   BFD_RELOC_SPARC_GLOB_DAT,
1887   BFD_RELOC_SPARC_JMP_SLOT,
1888   BFD_RELOC_SPARC_RELATIVE,
1889   BFD_RELOC_SPARC_UA32,
1890
1891 /* I think these are specific to SPARC a.out (e.g., Sun 4). */
1892   BFD_RELOC_SPARC_BASE13,
1893   BFD_RELOC_SPARC_BASE22,
1894
1895 /* SPARC64 relocations */
1896 #define BFD_RELOC_SPARC_64 BFD_RELOC_64
1897   BFD_RELOC_SPARC_10,
1898   BFD_RELOC_SPARC_11,
1899   BFD_RELOC_SPARC_OLO10,
1900   BFD_RELOC_SPARC_HH22,
1901   BFD_RELOC_SPARC_HM10,
1902   BFD_RELOC_SPARC_LM22,
1903   BFD_RELOC_SPARC_PC_HH22,
1904   BFD_RELOC_SPARC_PC_HM10,
1905   BFD_RELOC_SPARC_PC_LM22,
1906   BFD_RELOC_SPARC_WDISP16,
1907   BFD_RELOC_SPARC_WDISP19,
1908   BFD_RELOC_SPARC_7,
1909   BFD_RELOC_SPARC_6,
1910   BFD_RELOC_SPARC_5,
1911 #define BFD_RELOC_SPARC_DISP64 BFD_RELOC_64_PCREL
1912   BFD_RELOC_SPARC_PLT64,
1913   BFD_RELOC_SPARC_HIX22,
1914   BFD_RELOC_SPARC_LOX10,
1915   BFD_RELOC_SPARC_H44,
1916   BFD_RELOC_SPARC_M44,
1917   BFD_RELOC_SPARC_L44,
1918   BFD_RELOC_SPARC_REGISTER,
1919
1920 /* SPARC little endian relocation */
1921   BFD_RELOC_SPARC_REV32,
1922
1923 /* Alpha ECOFF and ELF relocations.  Some of these treat the symbol or
1924 "addend" in some special way.
1925 For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1926 writing; when reading, it will be the absolute section symbol.  The
1927 addend is the displacement in bytes of the "lda" instruction from
1928 the "ldah" instruction (which is at the address of this reloc). */
1929   BFD_RELOC_ALPHA_GPDISP_HI16,
1930
1931 /* For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1932 with GPDISP_HI16 relocs.  The addend is ignored when writing the
1933 relocations out, and is filled in with the file's GP value on
1934 reading, for convenience. */
1935   BFD_RELOC_ALPHA_GPDISP_LO16,
1936
1937 /* The ELF GPDISP relocation is exactly the same as the GPDISP_HI16
1938 relocation except that there is no accompanying GPDISP_LO16
1939 relocation. */
1940   BFD_RELOC_ALPHA_GPDISP,
1941
1942 /* The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1943 the assembler turns it into a LDQ instruction to load the address of
1944 the symbol, and then fills in a register in the real instruction.
1945
1946 The LITERAL reloc, at the LDQ instruction, refers to the .lita
1947 section symbol.  The addend is ignored when writing, but is filled
1948 in with the file's GP value on reading, for convenience, as with the
1949 GPDISP_LO16 reloc.
1950
1951 The ELF_LITERAL reloc is somewhere between 16_GOTOFF and GPDISP_LO16.
1952 It should refer to the symbol to be referenced, as with 16_GOTOFF,
1953 but it generates output not based on the position within the .got
1954 section, but relative to the GP value chosen for the file during the
1955 final link stage.
1956
1957 The LITUSE reloc, on the instruction using the loaded address, gives
1958 information to the linker that it might be able to use to optimize
1959 away some literal section references.  The symbol is ignored (read
1960 as the absolute section symbol), and the "addend" indicates the type
1961 of instruction using the register:
1962 1 - "memory" fmt insn
1963 2 - byte-manipulation (byte offset reg)
1964 3 - jsr (target of branch)
1965
1966 The GNU linker currently doesn't do any of this optimizing. */
1967   BFD_RELOC_ALPHA_LITERAL,
1968   BFD_RELOC_ALPHA_ELF_LITERAL,
1969   BFD_RELOC_ALPHA_LITUSE,
1970
1971 /* The BFD_RELOC_ALPHA_USER_* relocations are used by the assembler to
1972 process the explicit !<reloc>!sequence relocations, and are mapped
1973 into the normal relocations at the end of processing. */
1974   BFD_RELOC_ALPHA_USER_LITERAL,
1975   BFD_RELOC_ALPHA_USER_LITUSE_BASE,
1976   BFD_RELOC_ALPHA_USER_LITUSE_BYTOFF,
1977   BFD_RELOC_ALPHA_USER_LITUSE_JSR,
1978   BFD_RELOC_ALPHA_USER_GPDISP,
1979   BFD_RELOC_ALPHA_USER_GPRELHIGH,
1980   BFD_RELOC_ALPHA_USER_GPRELLOW,
1981
1982 /* The HINT relocation indicates a value that should be filled into the
1983 "hint" field of a jmp/jsr/ret instruction, for possible branch-
1984 prediction logic which may be provided on some processors. */
1985   BFD_RELOC_ALPHA_HINT,
1986
1987 /* The LINKAGE relocation outputs a linkage pair in the object file,
1988 which is filled by the linker. */
1989   BFD_RELOC_ALPHA_LINKAGE,
1990
1991 /* The CODEADDR relocation outputs a STO_CA in the object file,
1992 which is filled by the linker. */
1993   BFD_RELOC_ALPHA_CODEADDR,
1994
1995 /* Bits 27..2 of the relocation address shifted right 2 bits;
1996 simple reloc otherwise. */
1997   BFD_RELOC_MIPS_JMP,
1998
1999 /* The MIPS16 jump instruction. */
2000   BFD_RELOC_MIPS16_JMP,
2001
2002 /* MIPS16 GP relative reloc. */
2003   BFD_RELOC_MIPS16_GPREL,
2004
2005 /* High 16 bits of 32-bit value; simple reloc. */
2006   BFD_RELOC_HI16,
2007
2008 /* High 16 bits of 32-bit value but the low 16 bits will be sign
2009 extended and added to form the final result.  If the low 16
2010 bits form a negative number, we need to add one to the high value
2011 to compensate for the borrow when the low bits are added. */
2012   BFD_RELOC_HI16_S,
2013
2014 /* Low 16 bits. */
2015   BFD_RELOC_LO16,
2016
2017 /* Like BFD_RELOC_HI16_S, but PC relative. */
2018   BFD_RELOC_PCREL_HI16_S,
2019
2020 /* Like BFD_RELOC_LO16, but PC relative. */
2021   BFD_RELOC_PCREL_LO16,
2022
2023 /* Relocation relative to the global pointer. */
2024 #define BFD_RELOC_MIPS_GPREL BFD_RELOC_GPREL16
2025
2026 /* Relocation against a MIPS literal section. */
2027   BFD_RELOC_MIPS_LITERAL,
2028
2029 /* MIPS ELF relocations. */
2030   BFD_RELOC_MIPS_GOT16,
2031   BFD_RELOC_MIPS_CALL16,
2032 #define BFD_RELOC_MIPS_GPREL32 BFD_RELOC_GPREL32
2033   BFD_RELOC_MIPS_GOT_HI16,
2034   BFD_RELOC_MIPS_GOT_LO16,
2035   BFD_RELOC_MIPS_CALL_HI16,
2036   BFD_RELOC_MIPS_CALL_LO16,
2037   BFD_RELOC_MIPS_SUB,
2038   BFD_RELOC_MIPS_GOT_PAGE,
2039   BFD_RELOC_MIPS_GOT_OFST,
2040   BFD_RELOC_MIPS_GOT_DISP,
2041
2042
2043 /* i386/elf relocations */
2044   BFD_RELOC_386_GOT32,
2045   BFD_RELOC_386_PLT32,
2046   BFD_RELOC_386_COPY,
2047   BFD_RELOC_386_GLOB_DAT,
2048   BFD_RELOC_386_JUMP_SLOT,
2049   BFD_RELOC_386_RELATIVE,
2050   BFD_RELOC_386_GOTOFF,
2051   BFD_RELOC_386_GOTPC,
2052
2053 /* ns32k relocations */
2054   BFD_RELOC_NS32K_IMM_8,
2055   BFD_RELOC_NS32K_IMM_16,
2056   BFD_RELOC_NS32K_IMM_32,
2057   BFD_RELOC_NS32K_IMM_8_PCREL,
2058   BFD_RELOC_NS32K_IMM_16_PCREL,
2059   BFD_RELOC_NS32K_IMM_32_PCREL,
2060   BFD_RELOC_NS32K_DISP_8,
2061   BFD_RELOC_NS32K_DISP_16,
2062   BFD_RELOC_NS32K_DISP_32,
2063   BFD_RELOC_NS32K_DISP_8_PCREL,
2064   BFD_RELOC_NS32K_DISP_16_PCREL,
2065   BFD_RELOC_NS32K_DISP_32_PCREL,
2066
2067 /* Picojava relocs.  Not all of these appear in object files. */
2068   BFD_RELOC_PJ_CODE_HI16,
2069   BFD_RELOC_PJ_CODE_LO16,
2070   BFD_RELOC_PJ_CODE_DIR16,
2071   BFD_RELOC_PJ_CODE_DIR32,
2072   BFD_RELOC_PJ_CODE_REL16,
2073   BFD_RELOC_PJ_CODE_REL32,
2074
2075 /* Power(rs6000) and PowerPC relocations. */
2076   BFD_RELOC_PPC_B26,
2077   BFD_RELOC_PPC_BA26,
2078   BFD_RELOC_PPC_TOC16,
2079   BFD_RELOC_PPC_B16,
2080   BFD_RELOC_PPC_B16_BRTAKEN,
2081   BFD_RELOC_PPC_B16_BRNTAKEN,
2082   BFD_RELOC_PPC_BA16,
2083   BFD_RELOC_PPC_BA16_BRTAKEN,
2084   BFD_RELOC_PPC_BA16_BRNTAKEN,
2085   BFD_RELOC_PPC_COPY,
2086   BFD_RELOC_PPC_GLOB_DAT,
2087   BFD_RELOC_PPC_JMP_SLOT,
2088   BFD_RELOC_PPC_RELATIVE,
2089   BFD_RELOC_PPC_LOCAL24PC,
2090   BFD_RELOC_PPC_EMB_NADDR32,
2091   BFD_RELOC_PPC_EMB_NADDR16,
2092   BFD_RELOC_PPC_EMB_NADDR16_LO,
2093   BFD_RELOC_PPC_EMB_NADDR16_HI,
2094   BFD_RELOC_PPC_EMB_NADDR16_HA,
2095   BFD_RELOC_PPC_EMB_SDAI16,
2096   BFD_RELOC_PPC_EMB_SDA2I16,
2097   BFD_RELOC_PPC_EMB_SDA2REL,
2098   BFD_RELOC_PPC_EMB_SDA21,
2099   BFD_RELOC_PPC_EMB_MRKREF,
2100   BFD_RELOC_PPC_EMB_RELSEC16,
2101   BFD_RELOC_PPC_EMB_RELST_LO,
2102   BFD_RELOC_PPC_EMB_RELST_HI,
2103   BFD_RELOC_PPC_EMB_RELST_HA,
2104   BFD_RELOC_PPC_EMB_BIT_FLD,
2105   BFD_RELOC_PPC_EMB_RELSDA,
2106
2107 /* IBM 370/390 relocations */
2108   BFD_RELOC_I370_D12,
2109
2110 /* The type of reloc used to build a contructor table - at the moment
2111 probably a 32 bit wide absolute relocation, but the target can choose.
2112 It generally does map to one of the other relocation types. */
2113   BFD_RELOC_CTOR,
2114
2115 /* ARM 26 bit pc-relative branch.  The lowest two bits must be zero and are
2116 not stored in the instruction. */
2117   BFD_RELOC_ARM_PCREL_BRANCH,
2118
2119 /* ARM 26 bit pc-relative branch.  The lowest bit must be zero and is
2120 not stored in the instruction.  The 2nd lowest bit comes from a 1 bit
2121 field in the instruction. */
2122   BFD_RELOC_ARM_PCREL_BLX,
2123
2124 /* Thumb 22 bit pc-relative branch.  The lowest bit must be zero and is
2125 not stored in the instruction.  The 2nd lowest bit comes from a 1 bit
2126 field in the instruction. */
2127   BFD_RELOC_THUMB_PCREL_BLX,
2128
2129 /* These relocs are only used within the ARM assembler.  They are not
2130 (at present) written to any object files. */
2131   BFD_RELOC_ARM_IMMEDIATE,
2132   BFD_RELOC_ARM_ADRL_IMMEDIATE,
2133   BFD_RELOC_ARM_OFFSET_IMM,
2134   BFD_RELOC_ARM_SHIFT_IMM,
2135   BFD_RELOC_ARM_SWI,
2136   BFD_RELOC_ARM_MULTI,
2137   BFD_RELOC_ARM_CP_OFF_IMM,
2138   BFD_RELOC_ARM_ADR_IMM,
2139   BFD_RELOC_ARM_LDR_IMM,
2140   BFD_RELOC_ARM_LITERAL,
2141   BFD_RELOC_ARM_IN_POOL,
2142   BFD_RELOC_ARM_OFFSET_IMM8,
2143   BFD_RELOC_ARM_HWLITERAL,
2144   BFD_RELOC_ARM_THUMB_ADD,
2145   BFD_RELOC_ARM_THUMB_IMM,
2146   BFD_RELOC_ARM_THUMB_SHIFT,
2147   BFD_RELOC_ARM_THUMB_OFFSET,
2148   BFD_RELOC_ARM_GOT12,
2149   BFD_RELOC_ARM_GOT32,
2150   BFD_RELOC_ARM_JUMP_SLOT,
2151   BFD_RELOC_ARM_COPY,
2152   BFD_RELOC_ARM_GLOB_DAT,
2153   BFD_RELOC_ARM_PLT32,
2154   BFD_RELOC_ARM_RELATIVE,
2155   BFD_RELOC_ARM_GOTOFF,
2156   BFD_RELOC_ARM_GOTPC,
2157
2158 /* Hitachi SH relocs.  Not all of these appear in object files. */
2159   BFD_RELOC_SH_PCDISP8BY2,
2160   BFD_RELOC_SH_PCDISP12BY2,
2161   BFD_RELOC_SH_IMM4,
2162   BFD_RELOC_SH_IMM4BY2,
2163   BFD_RELOC_SH_IMM4BY4,
2164   BFD_RELOC_SH_IMM8,
2165   BFD_RELOC_SH_IMM8BY2,
2166   BFD_RELOC_SH_IMM8BY4,
2167   BFD_RELOC_SH_PCRELIMM8BY2,
2168   BFD_RELOC_SH_PCRELIMM8BY4,
2169   BFD_RELOC_SH_SWITCH16,
2170   BFD_RELOC_SH_SWITCH32,
2171   BFD_RELOC_SH_USES,
2172   BFD_RELOC_SH_COUNT,
2173   BFD_RELOC_SH_ALIGN,
2174   BFD_RELOC_SH_CODE,
2175   BFD_RELOC_SH_DATA,
2176   BFD_RELOC_SH_LABEL,
2177   BFD_RELOC_SH_LOOP_START,
2178   BFD_RELOC_SH_LOOP_END,
2179   BFD_RELOC_SH_COPY,
2180   BFD_RELOC_SH_GLOB_DAT,
2181   BFD_RELOC_SH_JMP_SLOT,
2182   BFD_RELOC_SH_RELATIVE,
2183   BFD_RELOC_SH_GOTPC,
2184
2185 /* Thumb 23-, 12- and 9-bit pc-relative branches.  The lowest bit must
2186 be zero and is not stored in the instruction. */
2187   BFD_RELOC_THUMB_PCREL_BRANCH9,
2188   BFD_RELOC_THUMB_PCREL_BRANCH12,
2189   BFD_RELOC_THUMB_PCREL_BRANCH23,
2190
2191 /* Argonaut RISC Core (ARC) relocs.
2192 ARC 22 bit pc-relative branch.  The lowest two bits must be zero and are
2193 not stored in the instruction.  The high 20 bits are installed in bits 26
2194 through 7 of the instruction. */
2195   BFD_RELOC_ARC_B22_PCREL,
2196
2197 /* ARC 26 bit absolute branch.  The lowest two bits must be zero and are not
2198 stored in the instruction.  The high 24 bits are installed in bits 23
2199 through 0. */
2200   BFD_RELOC_ARC_B26,
2201
2202 /* Mitsubishi D10V relocs.
2203 This is a 10-bit reloc with the right 2 bits
2204 assumed to be 0. */
2205   BFD_RELOC_D10V_10_PCREL_R,
2206
2207 /* Mitsubishi D10V relocs.
2208 This is a 10-bit reloc with the right 2 bits
2209 assumed to be 0.  This is the same as the previous reloc
2210 except it is in the left container, i.e.,
2211 shifted left 15 bits. */
2212   BFD_RELOC_D10V_10_PCREL_L,
2213
2214 /* This is an 18-bit reloc with the right 2 bits
2215 assumed to be 0. */
2216   BFD_RELOC_D10V_18,
2217
2218 /* This is an 18-bit reloc with the right 2 bits
2219 assumed to be 0. */
2220   BFD_RELOC_D10V_18_PCREL,
2221
2222 /* Mitsubishi D30V relocs.
2223 This is a 6-bit absolute reloc. */
2224   BFD_RELOC_D30V_6,
2225
2226 /* This is a 6-bit pc-relative reloc with
2227 the right 3 bits assumed to be 0. */
2228   BFD_RELOC_D30V_9_PCREL,
2229
2230 /* This is a 6-bit pc-relative reloc with
2231 the right 3 bits assumed to be 0. Same
2232 as the previous reloc but on the right side
2233 of the container. */
2234   BFD_RELOC_D30V_9_PCREL_R,
2235
2236 /* This is a 12-bit absolute reloc with the
2237 right 3 bitsassumed to be 0. */
2238   BFD_RELOC_D30V_15,
2239
2240 /* This is a 12-bit pc-relative reloc with
2241 the right 3 bits assumed to be 0. */
2242   BFD_RELOC_D30V_15_PCREL,
2243
2244 /* This is a 12-bit pc-relative reloc with
2245 the right 3 bits assumed to be 0. Same
2246 as the previous reloc but on the right side
2247 of the container. */
2248   BFD_RELOC_D30V_15_PCREL_R,
2249
2250 /* This is an 18-bit absolute reloc with
2251 the right 3 bits assumed to be 0. */
2252   BFD_RELOC_D30V_21,
2253
2254 /* This is an 18-bit pc-relative reloc with
2255 the right 3 bits assumed to be 0. */
2256   BFD_RELOC_D30V_21_PCREL,
2257
2258 /* This is an 18-bit pc-relative reloc with
2259 the right 3 bits assumed to be 0. Same
2260 as the previous reloc but on the right side
2261 of the container. */
2262   BFD_RELOC_D30V_21_PCREL_R,
2263
2264 /* This is a 32-bit absolute reloc. */
2265   BFD_RELOC_D30V_32,
2266
2267 /* This is a 32-bit pc-relative reloc. */
2268   BFD_RELOC_D30V_32_PCREL,
2269
2270 /* Mitsubishi M32R relocs.
2271 This is a 24 bit absolute address. */
2272   BFD_RELOC_M32R_24,
2273
2274 /* This is a 10-bit pc-relative reloc with the right 2 bits assumed to be 0. */
2275   BFD_RELOC_M32R_10_PCREL,
2276
2277 /* This is an 18-bit reloc with the right 2 bits assumed to be 0. */
2278   BFD_RELOC_M32R_18_PCREL,
2279
2280 /* This is a 26-bit reloc with the right 2 bits assumed to be 0. */
2281   BFD_RELOC_M32R_26_PCREL,
2282
2283 /* This is a 16-bit reloc containing the high 16 bits of an address
2284 used when the lower 16 bits are treated as unsigned. */
2285   BFD_RELOC_M32R_HI16_ULO,
2286
2287 /* This is a 16-bit reloc containing the high 16 bits of an address
2288 used when the lower 16 bits are treated as signed. */
2289   BFD_RELOC_M32R_HI16_SLO,
2290
2291 /* This is a 16-bit reloc containing the lower 16 bits of an address. */
2292   BFD_RELOC_M32R_LO16,
2293
2294 /* This is a 16-bit reloc containing the small data area offset for use in
2295 add3, load, and store instructions. */
2296   BFD_RELOC_M32R_SDA16,
2297
2298 /* This is a 9-bit reloc */
2299   BFD_RELOC_V850_9_PCREL,
2300
2301 /* This is a 22-bit reloc */
2302   BFD_RELOC_V850_22_PCREL,
2303
2304 /* This is a 16 bit offset from the short data area pointer. */
2305   BFD_RELOC_V850_SDA_16_16_OFFSET,
2306
2307 /* This is a 16 bit offset (of which only 15 bits are used) from the
2308 short data area pointer. */
2309   BFD_RELOC_V850_SDA_15_16_OFFSET,
2310
2311 /* This is a 16 bit offset from the zero data area pointer. */
2312   BFD_RELOC_V850_ZDA_16_16_OFFSET,
2313
2314 /* This is a 16 bit offset (of which only 15 bits are used) from the
2315 zero data area pointer. */
2316   BFD_RELOC_V850_ZDA_15_16_OFFSET,
2317
2318 /* This is an 8 bit offset (of which only 6 bits are used) from the
2319 tiny data area pointer. */
2320   BFD_RELOC_V850_TDA_6_8_OFFSET,
2321
2322 /* This is an 8bit offset (of which only 7 bits are used) from the tiny
2323 data area pointer. */
2324   BFD_RELOC_V850_TDA_7_8_OFFSET,
2325
2326 /* This is a 7 bit offset from the tiny data area pointer. */
2327   BFD_RELOC_V850_TDA_7_7_OFFSET,
2328
2329 /* This is a 16 bit offset from the tiny data area pointer. */
2330   BFD_RELOC_V850_TDA_16_16_OFFSET,
2331
2332 /* This is a 5 bit offset (of which only 4 bits are used) from the tiny
2333 data area pointer. */
2334   BFD_RELOC_V850_TDA_4_5_OFFSET,
2335
2336 /* This is a 4 bit offset from the tiny data area pointer. */
2337   BFD_RELOC_V850_TDA_4_4_OFFSET,
2338
2339 /* This is a 16 bit offset from the short data area pointer, with the
2340 bits placed non-contigously in the instruction. */
2341   BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET,
2342
2343 /* This is a 16 bit offset from the zero data area pointer, with the
2344 bits placed non-contigously in the instruction. */
2345   BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET,
2346
2347 /* This is a 6 bit offset from the call table base pointer. */
2348   BFD_RELOC_V850_CALLT_6_7_OFFSET,
2349
2350 /* This is a 16 bit offset from the call table base pointer. */
2351   BFD_RELOC_V850_CALLT_16_16_OFFSET,
2352
2353
2354 /* This is a 32bit pcrel reloc for the mn10300, offset by two bytes in the
2355 instruction. */
2356   BFD_RELOC_MN10300_32_PCREL,
2357
2358 /* This is a 16bit pcrel reloc for the mn10300, offset by two bytes in the
2359 instruction. */
2360   BFD_RELOC_MN10300_16_PCREL,
2361
2362 /* This is a 8bit DP reloc for the tms320c30, where the most
2363 significant 8 bits of a 24 bit word are placed into the least
2364 significant 8 bits of the opcode. */
2365   BFD_RELOC_TIC30_LDP,
2366
2367 /* This is a 7bit reloc for the tms320c54x, where the least
2368 significant 7 bits of a 16 bit word are placed into the least
2369 significant 7 bits of the opcode. */
2370   BFD_RELOC_TIC54X_PARTLS7,
2371
2372 /* This is a 9bit DP reloc for the tms320c54x, where the most
2373 significant 9 bits of a 16 bit word are placed into the least
2374 significant 9 bits of the opcode. */
2375   BFD_RELOC_TIC54X_PARTMS9,
2376
2377 /* This is an extended address 23-bit reloc for the tms320c54x. */
2378   BFD_RELOC_TIC54X_23,
2379
2380 /* This is a 16-bit reloc for the tms320c54x, where the least
2381 significant 16 bits of a 23-bit extended address are placed into
2382 the opcode. */
2383   BFD_RELOC_TIC54X_16_OF_23,
2384
2385 /* This is a reloc for the tms320c54x, where the most
2386 significant 7 bits of a 23-bit extended address are placed into
2387 the opcode. */
2388   BFD_RELOC_TIC54X_MS7_OF_23,
2389
2390 /* This is a 48 bit reloc for the FR30 that stores 32 bits. */
2391   BFD_RELOC_FR30_48,
2392
2393 /* This is a 32 bit reloc for the FR30 that stores 20 bits split up into
2394 two sections. */
2395   BFD_RELOC_FR30_20,
2396
2397 /* This is a 16 bit reloc for the FR30 that stores a 6 bit word offset in
2398 4 bits. */
2399   BFD_RELOC_FR30_6_IN_4,
2400
2401 /* This is a 16 bit reloc for the FR30 that stores an 8 bit byte offset
2402 into 8 bits. */
2403   BFD_RELOC_FR30_8_IN_8,
2404
2405 /* This is a 16 bit reloc for the FR30 that stores a 9 bit short offset
2406 into 8 bits. */
2407   BFD_RELOC_FR30_9_IN_8,
2408
2409 /* This is a 16 bit reloc for the FR30 that stores a 10 bit word offset
2410 into 8 bits. */
2411   BFD_RELOC_FR30_10_IN_8,
2412
2413 /* This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative
2414 short offset into 8 bits. */
2415   BFD_RELOC_FR30_9_PCREL,
2416
2417 /* This is a 16 bit reloc for the FR30 that stores a 12 bit pc relative
2418 short offset into 11 bits. */
2419   BFD_RELOC_FR30_12_PCREL,
2420
2421 /* Motorola Mcore relocations. */
2422   BFD_RELOC_MCORE_PCREL_IMM8BY4,
2423   BFD_RELOC_MCORE_PCREL_IMM11BY2,
2424   BFD_RELOC_MCORE_PCREL_IMM4BY2,
2425   BFD_RELOC_MCORE_PCREL_32,
2426   BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2,
2427   BFD_RELOC_MCORE_RVA,
2428
2429 /* This is a 16 bit reloc for the AVR that stores 8 bit pc relative
2430 short offset into 7 bits. */
2431   BFD_RELOC_AVR_7_PCREL,
2432
2433 /* This is a 16 bit reloc for the AVR that stores 13 bit pc relative
2434 short offset into 12 bits. */
2435   BFD_RELOC_AVR_13_PCREL,
2436
2437 /* This is a 16 bit reloc for the AVR that stores 17 bit value (usually
2438 program memory address) into 16 bits. */
2439   BFD_RELOC_AVR_16_PM,
2440
2441 /* This is a 16 bit reloc for the AVR that stores 8 bit value (usually
2442 data memory address) into 8 bit immediate value of LDI insn. */
2443   BFD_RELOC_AVR_LO8_LDI,
2444
2445 /* This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
2446 of data memory address) into 8 bit immediate value of LDI insn. */
2447   BFD_RELOC_AVR_HI8_LDI,
2448
2449 /* This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
2450 of program memory address) into 8 bit immediate value of LDI insn. */
2451   BFD_RELOC_AVR_HH8_LDI,
2452
2453 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2454 (usually data memory address) into 8 bit immediate value of SUBI insn. */
2455   BFD_RELOC_AVR_LO8_LDI_NEG,
2456
2457 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2458 (high 8 bit of data memory address) into 8 bit immediate value of
2459 SUBI insn. */
2460   BFD_RELOC_AVR_HI8_LDI_NEG,
2461
2462 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2463 (most high 8 bit of program memory address) into 8 bit immediate value
2464 of LDI or SUBI insn. */
2465   BFD_RELOC_AVR_HH8_LDI_NEG,
2466
2467 /* This is a 16 bit reloc for the AVR that stores 8 bit value (usually
2468 command address) into 8 bit immediate value of LDI insn. */
2469   BFD_RELOC_AVR_LO8_LDI_PM,
2470
2471 /* This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
2472 of command address) into 8 bit immediate value of LDI insn. */
2473   BFD_RELOC_AVR_HI8_LDI_PM,
2474
2475 /* This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
2476 of command address) into 8 bit immediate value of LDI insn. */
2477   BFD_RELOC_AVR_HH8_LDI_PM,
2478
2479 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2480 (usually command address) into 8 bit immediate value of SUBI insn. */
2481   BFD_RELOC_AVR_LO8_LDI_PM_NEG,
2482
2483 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2484 (high 8 bit of 16 bit command address) into 8 bit immediate value
2485 of SUBI insn. */
2486   BFD_RELOC_AVR_HI8_LDI_PM_NEG,
2487
2488 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2489 (high 6 bit of 22 bit command address) into 8 bit immediate
2490 value of SUBI insn. */
2491   BFD_RELOC_AVR_HH8_LDI_PM_NEG,
2492
2493 /* This is a 32 bit reloc for the AVR that stores 23 bit value
2494 into 22 bits. */
2495   BFD_RELOC_AVR_CALL,
2496
2497 /* These two relocations are used by the linker to determine which of
2498 the entries in a C++ virtual function table are actually used.  When
2499 the --gc-sections option is given, the linker will zero out the entries
2500 that are not used, so that the code for those functions need not be
2501 included in the output.
2502
2503 VTABLE_INHERIT is a zero-space relocation used to describe to the
2504 linker the inheritence tree of a C++ virtual function table.  The
2505 relocation's symbol should be the parent class' vtable, and the
2506 relocation should be located at the child vtable.
2507
2508 VTABLE_ENTRY is a zero-space relocation that describes the use of a
2509 virtual function table entry.  The reloc's symbol should refer to the
2510 table of the class mentioned in the code.  Off of that base, an offset
2511 describes the entry that is being used.  For Rela hosts, this offset
2512 is stored in the reloc's addend.  For Rel hosts, we are forced to put
2513 this offset in the reloc's section offset. */
2514   BFD_RELOC_VTABLE_INHERIT,
2515   BFD_RELOC_VTABLE_ENTRY,
2516
2517 /* Intel IA64 Relocations. */
2518   BFD_RELOC_IA64_IMM14,
2519   BFD_RELOC_IA64_IMM22,
2520   BFD_RELOC_IA64_IMM64,
2521   BFD_RELOC_IA64_DIR32MSB,
2522   BFD_RELOC_IA64_DIR32LSB,
2523   BFD_RELOC_IA64_DIR64MSB,
2524   BFD_RELOC_IA64_DIR64LSB,
2525   BFD_RELOC_IA64_GPREL22,
2526   BFD_RELOC_IA64_GPREL64I,
2527   BFD_RELOC_IA64_GPREL32MSB,
2528   BFD_RELOC_IA64_GPREL32LSB,
2529   BFD_RELOC_IA64_GPREL64MSB,
2530   BFD_RELOC_IA64_GPREL64LSB,
2531   BFD_RELOC_IA64_LTOFF22,
2532   BFD_RELOC_IA64_LTOFF64I,
2533   BFD_RELOC_IA64_PLTOFF22,
2534   BFD_RELOC_IA64_PLTOFF64I,
2535   BFD_RELOC_IA64_PLTOFF64MSB,
2536   BFD_RELOC_IA64_PLTOFF64LSB,
2537   BFD_RELOC_IA64_FPTR64I,
2538   BFD_RELOC_IA64_FPTR32MSB,
2539   BFD_RELOC_IA64_FPTR32LSB,
2540   BFD_RELOC_IA64_FPTR64MSB,
2541   BFD_RELOC_IA64_FPTR64LSB,
2542   BFD_RELOC_IA64_PCREL21B,
2543   BFD_RELOC_IA64_PCREL21BI,
2544   BFD_RELOC_IA64_PCREL21M,
2545   BFD_RELOC_IA64_PCREL21F,
2546   BFD_RELOC_IA64_PCREL22,
2547   BFD_RELOC_IA64_PCREL60B,
2548   BFD_RELOC_IA64_PCREL64I,
2549   BFD_RELOC_IA64_PCREL32MSB,
2550   BFD_RELOC_IA64_PCREL32LSB,
2551   BFD_RELOC_IA64_PCREL64MSB,
2552   BFD_RELOC_IA64_PCREL64LSB,
2553   BFD_RELOC_IA64_LTOFF_FPTR22,
2554   BFD_RELOC_IA64_LTOFF_FPTR64I,
2555   BFD_RELOC_IA64_LTOFF_FPTR64MSB,
2556   BFD_RELOC_IA64_LTOFF_FPTR64LSB,
2557   BFD_RELOC_IA64_SEGBASE,
2558   BFD_RELOC_IA64_SEGREL32MSB,
2559   BFD_RELOC_IA64_SEGREL32LSB,
2560   BFD_RELOC_IA64_SEGREL64MSB,
2561   BFD_RELOC_IA64_SEGREL64LSB,
2562   BFD_RELOC_IA64_SECREL32MSB,
2563   BFD_RELOC_IA64_SECREL32LSB,
2564   BFD_RELOC_IA64_SECREL64MSB,
2565   BFD_RELOC_IA64_SECREL64LSB,
2566   BFD_RELOC_IA64_REL32MSB,
2567   BFD_RELOC_IA64_REL32LSB,
2568   BFD_RELOC_IA64_REL64MSB,
2569   BFD_RELOC_IA64_REL64LSB,
2570   BFD_RELOC_IA64_LTV32MSB,
2571   BFD_RELOC_IA64_LTV32LSB,
2572   BFD_RELOC_IA64_LTV64MSB,
2573   BFD_RELOC_IA64_LTV64LSB,
2574   BFD_RELOC_IA64_IPLTMSB,
2575   BFD_RELOC_IA64_IPLTLSB,
2576   BFD_RELOC_IA64_EPLTMSB,
2577   BFD_RELOC_IA64_EPLTLSB,
2578   BFD_RELOC_IA64_COPY,
2579   BFD_RELOC_IA64_TPREL22,
2580   BFD_RELOC_IA64_TPREL64MSB,
2581   BFD_RELOC_IA64_TPREL64LSB,
2582   BFD_RELOC_IA64_LTOFF_TP22,
2583   BFD_RELOC_IA64_LTOFF22X,
2584   BFD_RELOC_IA64_LDXMOV,
2585
2586 /* Motorola 68HC11 reloc.
2587 This is the 8 bits high part of an absolute address. */
2588   BFD_RELOC_M68HC11_HI8,
2589
2590 /* Motorola 68HC11 reloc.
2591 This is the 8 bits low part of an absolute address. */
2592   BFD_RELOC_M68HC11_LO8,
2593
2594 /* Motorola 68HC11 reloc.
2595 This is the 3 bits of a value. */
2596   BFD_RELOC_M68HC11_3B,
2597
2598 /* These relocs are only used within the CRIS assembler.  They are not
2599 (at present) written to any object files. */
2600   BFD_RELOC_CRIS_BDISP8,
2601   BFD_RELOC_CRIS_UNSIGNED_5,
2602   BFD_RELOC_CRIS_SIGNED_6,
2603   BFD_RELOC_CRIS_UNSIGNED_6,
2604   BFD_RELOC_CRIS_UNSIGNED_4,
2605
2606 /* Intel i860 Relocations. */
2607   BFD_RELOC_860_COPY,
2608   BFD_RELOC_860_GLOB_DAT,
2609   BFD_RELOC_860_JUMP_SLOT,
2610   BFD_RELOC_860_RELATIVE,
2611   BFD_RELOC_860_PC26,
2612   BFD_RELOC_860_PLT26,
2613   BFD_RELOC_860_PC16,
2614   BFD_RELOC_860_LOW0,
2615   BFD_RELOC_860_SPLIT0,
2616   BFD_RELOC_860_LOW1,
2617   BFD_RELOC_860_SPLIT1,
2618   BFD_RELOC_860_LOW2,
2619   BFD_RELOC_860_SPLIT2,
2620   BFD_RELOC_860_LOW3,
2621   BFD_RELOC_860_LOGOT0,
2622   BFD_RELOC_860_SPGOT0,
2623   BFD_RELOC_860_LOGOT1,
2624   BFD_RELOC_860_SPGOT1,
2625   BFD_RELOC_860_LOGOTOFF0,
2626   BFD_RELOC_860_SPGOTOFF0,
2627   BFD_RELOC_860_LOGOTOFF1,
2628   BFD_RELOC_860_SPGOTOFF1,
2629   BFD_RELOC_860_LOGOTOFF2,
2630   BFD_RELOC_860_LOGOTOFF3,
2631   BFD_RELOC_860_LOPC,
2632   BFD_RELOC_860_HIGHADJ,
2633   BFD_RELOC_860_HAGOT,
2634   BFD_RELOC_860_HAGOTOFF,
2635   BFD_RELOC_860_HAPC,
2636   BFD_RELOC_860_HIGH,
2637   BFD_RELOC_860_HIGOT,
2638   BFD_RELOC_860_HIGOTOFF,
2639   BFD_RELOC_UNUSED };
2640 typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
2641 reloc_howto_type *
2642
2643 bfd_reloc_type_lookup  PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
2644
2645 const char *
2646 bfd_get_reloc_code_name  PARAMS ((bfd_reloc_code_real_type code));
2647
2648
2649 typedef struct symbol_cache_entry
2650 {
2651        /* A pointer to the BFD which owns the symbol. This information
2652           is necessary so that a back end can work out what additional
2653           information (invisible to the application writer) is carried
2654           with the symbol.
2655
2656           This field is *almost* redundant, since you can use section->owner
2657           instead, except that some symbols point to the global sections
2658           bfd_{abs,com,und}_section.  This could be fixed by making
2659           these globals be per-bfd (or per-target-flavor).  FIXME. */
2660
2661   struct _bfd *the_bfd; /* Use bfd_asymbol_bfd(sym) to access this field. */
2662
2663        /* The text of the symbol. The name is left alone, and not copied; the
2664           application may not alter it. */
2665   CONST char *name;
2666
2667        /* The value of the symbol.  This really should be a union of a
2668           numeric value with a pointer, since some flags indicate that
2669           a pointer to another symbol is stored here.  */
2670   symvalue value;
2671
2672        /* Attributes of a symbol: */
2673
2674 #define BSF_NO_FLAGS    0x00
2675
2676        /* The symbol has local scope; <<static>> in <<C>>. The value
2677           is the offset into the section of the data. */
2678 #define BSF_LOCAL      0x01
2679
2680        /* The symbol has global scope; initialized data in <<C>>. The
2681           value is the offset into the section of the data. */
2682 #define BSF_GLOBAL     0x02
2683
2684        /* The symbol has global scope and is exported. The value is
2685           the offset into the section of the data. */
2686 #define BSF_EXPORT     BSF_GLOBAL /* no real difference */
2687
2688        /* A normal C symbol would be one of:
2689           <<BSF_LOCAL>>, <<BSF_FORT_COMM>>,  <<BSF_UNDEFINED>> or
2690           <<BSF_GLOBAL>> */
2691
2692        /* The symbol is a debugging record. The value has an arbitary
2693           meaning, unless BSF_DEBUGGING_RELOC is also set.  */
2694 #define BSF_DEBUGGING  0x08
2695
2696        /* The symbol denotes a function entry point.  Used in ELF,
2697           perhaps others someday.  */
2698 #define BSF_FUNCTION    0x10
2699
2700        /* Used by the linker. */
2701 #define BSF_KEEP        0x20
2702 #define BSF_KEEP_G      0x40
2703
2704        /* A weak global symbol, overridable without warnings by
2705           a regular global symbol of the same name.  */
2706 #define BSF_WEAK        0x80
2707
2708        /* This symbol was created to point to a section, e.g. ELF's
2709           STT_SECTION symbols.  */
2710 #define BSF_SECTION_SYM 0x100
2711
2712        /* The symbol used to be a common symbol, but now it is
2713           allocated. */
2714 #define BSF_OLD_COMMON  0x200
2715
2716        /* The default value for common data. */
2717 #define BFD_FORT_COMM_DEFAULT_VALUE 0
2718
2719        /* In some files the type of a symbol sometimes alters its
2720           location in an output file - ie in coff a <<ISFCN>> symbol
2721           which is also <<C_EXT>> symbol appears where it was
2722           declared and not at the end of a section.  This bit is set
2723           by the target BFD part to convey this information. */
2724
2725 #define BSF_NOT_AT_END    0x400
2726
2727        /* Signal that the symbol is the label of constructor section. */
2728 #define BSF_CONSTRUCTOR   0x800
2729
2730        /* Signal that the symbol is a warning symbol.  The name is a
2731           warning.  The name of the next symbol is the one to warn about;
2732           if a reference is made to a symbol with the same name as the next
2733           symbol, a warning is issued by the linker. */
2734 #define BSF_WARNING       0x1000
2735
2736        /* Signal that the symbol is indirect.  This symbol is an indirect
2737           pointer to the symbol with the same name as the next symbol. */
2738 #define BSF_INDIRECT      0x2000
2739
2740        /* BSF_FILE marks symbols that contain a file name.  This is used
2741           for ELF STT_FILE symbols.  */
2742 #define BSF_FILE          0x4000
2743
2744        /* Symbol is from dynamic linking information.  */
2745 #define BSF_DYNAMIC       0x8000
2746
2747        /* The symbol denotes a data object.  Used in ELF, and perhaps
2748           others someday.  */
2749 #define BSF_OBJECT        0x10000
2750
2751        /* This symbol is a debugging symbol.  The value is the offset
2752           into the section of the data.  BSF_DEBUGGING should be set
2753           as well.  */
2754 #define BSF_DEBUGGING_RELOC 0x20000
2755
2756   flagword flags;
2757
2758        /* A pointer to the section to which this symbol is
2759           relative.  This will always be non NULL, there are special
2760           sections for undefined and absolute symbols.  */
2761   struct sec *section;
2762
2763        /* Back end special data.  */
2764   union
2765     {
2766       PTR p;
2767       bfd_vma i;
2768     } udata;
2769
2770 } asymbol;
2771 #define bfd_get_symtab_upper_bound(abfd) \
2772      BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd))
2773 boolean
2774 bfd_is_local_label PARAMS ((bfd *abfd, asymbol *sym));
2775
2776 boolean
2777 bfd_is_local_label_name PARAMS ((bfd *abfd, const char *name));
2778
2779 #define bfd_is_local_label_name(abfd, name) \
2780      BFD_SEND (abfd, _bfd_is_local_label_name, (abfd, name))
2781 #define bfd_canonicalize_symtab(abfd, location) \
2782      BFD_SEND (abfd, _bfd_canonicalize_symtab,\
2783                   (abfd, location))
2784 boolean
2785 bfd_set_symtab  PARAMS ((bfd *abfd, asymbol **location, unsigned int count));
2786
2787 void
2788 bfd_print_symbol_vandf PARAMS ((PTR file, asymbol *symbol));
2789
2790 #define bfd_make_empty_symbol(abfd) \
2791      BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
2792 #define bfd_make_debug_symbol(abfd,ptr,size) \
2793         BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
2794 int
2795 bfd_decode_symclass PARAMS ((asymbol *symbol));
2796
2797 boolean
2798 bfd_is_undefined_symclass  PARAMS ((int symclass));
2799
2800 void
2801 bfd_symbol_info PARAMS ((asymbol *symbol, symbol_info *ret));
2802
2803 boolean
2804 bfd_copy_private_symbol_data PARAMS ((bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym));
2805
2806 #define bfd_copy_private_symbol_data(ibfd, isymbol, obfd, osymbol) \
2807      BFD_SEND (obfd, _bfd_copy_private_symbol_data, \
2808                (ibfd, isymbol, obfd, osymbol))
2809 struct _bfd
2810 {
2811     /* The filename the application opened the BFD with.  */
2812     CONST char *filename;
2813
2814     /* A pointer to the target jump table.             */
2815     const struct bfd_target *xvec;
2816
2817     /* To avoid dragging too many header files into every file that
2818        includes `<<bfd.h>>', IOSTREAM has been declared as a "char
2819        *", and MTIME as a "long".  Their correct types, to which they
2820        are cast when used, are "FILE *" and "time_t".    The iostream
2821        is the result of an fopen on the filename.  However, if the
2822        BFD_IN_MEMORY flag is set, then iostream is actually a pointer
2823        to a bfd_in_memory struct.  */
2824     PTR iostream;
2825
2826     /* Is the file descriptor being cached?  That is, can it be closed as
2827        needed, and re-opened when accessed later?  */
2828
2829     boolean cacheable;
2830
2831     /* Marks whether there was a default target specified when the
2832        BFD was opened. This is used to select which matching algorithm
2833        to use to choose the back end. */
2834
2835     boolean target_defaulted;
2836
2837     /* The caching routines use these to maintain a
2838        least-recently-used list of BFDs */
2839
2840     struct _bfd *lru_prev, *lru_next;
2841
2842     /* When a file is closed by the caching routines, BFD retains
2843        state information on the file here: */
2844
2845     file_ptr where;
2846
2847     /* and here: (``once'' means at least once) */
2848
2849     boolean opened_once;
2850
2851     /* Set if we have a locally maintained mtime value, rather than
2852        getting it from the file each time: */
2853
2854     boolean mtime_set;
2855
2856     /* File modified time, if mtime_set is true: */
2857
2858     long mtime;
2859
2860     /* Reserved for an unimplemented file locking extension.*/
2861
2862     int ifd;
2863
2864     /* The format which belongs to the BFD. (object, core, etc.) */
2865
2866     bfd_format format;
2867
2868     /* The direction the BFD was opened with*/
2869
2870     enum bfd_direction {no_direction = 0,
2871                         read_direction = 1,
2872                         write_direction = 2,
2873                         both_direction = 3} direction;
2874
2875     /* Format_specific flags*/
2876
2877     flagword flags;
2878
2879     /* Currently my_archive is tested before adding origin to
2880        anything. I believe that this can become always an add of
2881        origin, with origin set to 0 for non archive files.   */
2882
2883     file_ptr origin;
2884
2885     /* Remember when output has begun, to stop strange things
2886        from happening. */
2887     boolean output_has_begun;
2888
2889     /* Pointer to linked list of sections*/
2890     struct sec  *sections;
2891
2892     /* The number of sections */
2893     unsigned int section_count;
2894
2895     /* Stuff only useful for object files:
2896        The start address. */
2897     bfd_vma start_address;
2898
2899     /* Used for input and output*/
2900     unsigned int symcount;
2901
2902     /* Symbol table for output BFD (with symcount entries) */
2903     struct symbol_cache_entry  **outsymbols;
2904
2905     /* Pointer to structure which contains architecture information*/
2906     const struct bfd_arch_info *arch_info;
2907
2908     /* Stuff only useful for archives:*/
2909     PTR arelt_data;
2910     struct _bfd *my_archive;     /* The containing archive BFD.  */
2911     struct _bfd *next;           /* The next BFD in the archive.  */
2912     struct _bfd *archive_head;   /* The first BFD in the archive.  */
2913     boolean has_armap;
2914
2915     /* A chain of BFD structures involved in a link.  */
2916     struct _bfd *link_next;
2917
2918     /* A field used by _bfd_generic_link_add_archive_symbols.  This will
2919        be used only for archive elements.  */
2920     int archive_pass;
2921
2922     /* Used by the back end to hold private data. */
2923
2924     union
2925       {
2926       struct aout_data_struct *aout_data;
2927       struct artdata *aout_ar_data;
2928       struct _oasys_data *oasys_obj_data;
2929       struct _oasys_ar_data *oasys_ar_data;
2930       struct coff_tdata *coff_obj_data;
2931       struct pe_tdata *pe_obj_data;
2932       struct xcoff_tdata *xcoff_obj_data;
2933       struct ecoff_tdata *ecoff_obj_data;
2934       struct ieee_data_struct *ieee_data;
2935       struct ieee_ar_data_struct *ieee_ar_data;
2936       struct srec_data_struct *srec_data;
2937       struct ihex_data_struct *ihex_data;
2938       struct tekhex_data_struct *tekhex_data;
2939       struct elf_obj_tdata *elf_obj_data;
2940       struct nlm_obj_tdata *nlm_obj_data;
2941       struct bout_data_struct *bout_data;
2942       struct sun_core_struct *sun_core_data;
2943       struct sco5_core_struct *sco5_core_data;
2944       struct trad_core_struct *trad_core_data;
2945       struct som_data_struct *som_data;
2946       struct hpux_core_struct *hpux_core_data;
2947       struct hppabsd_core_struct *hppabsd_core_data;
2948       struct sgi_core_struct *sgi_core_data;
2949       struct lynx_core_struct *lynx_core_data;
2950       struct osf_core_struct *osf_core_data;
2951       struct cisco_core_struct *cisco_core_data;
2952       struct versados_data_struct *versados_data;
2953       struct netbsd_core_struct *netbsd_core_data;
2954       PTR any;
2955       } tdata;
2956
2957     /* Used by the application to hold private data*/
2958     PTR usrdata;
2959
2960   /* Where all the allocated stuff under this BFD goes.  This is a
2961      struct objalloc *, but we use PTR to avoid requiring the inclusion of
2962      objalloc.h.  */
2963     PTR memory;
2964 };
2965
2966 typedef enum bfd_error
2967 {
2968   bfd_error_no_error = 0,
2969   bfd_error_system_call,
2970   bfd_error_invalid_target,
2971   bfd_error_wrong_format,
2972   bfd_error_invalid_operation,
2973   bfd_error_no_memory,
2974   bfd_error_no_symbols,
2975   bfd_error_no_armap,
2976   bfd_error_no_more_archived_files,
2977   bfd_error_malformed_archive,
2978   bfd_error_file_not_recognized,
2979   bfd_error_file_ambiguously_recognized,
2980   bfd_error_no_contents,
2981   bfd_error_nonrepresentable_section,
2982   bfd_error_no_debug_section,
2983   bfd_error_bad_value,
2984   bfd_error_file_truncated,
2985   bfd_error_file_too_big,
2986   bfd_error_invalid_error_code
2987 } bfd_error_type;
2988
2989 bfd_error_type
2990 bfd_get_error  PARAMS ((void));
2991
2992 void
2993 bfd_set_error  PARAMS ((bfd_error_type error_tag));
2994
2995 CONST char *
2996 bfd_errmsg  PARAMS ((bfd_error_type error_tag));
2997
2998 void
2999 bfd_perror  PARAMS ((CONST char *message));
3000
3001 typedef void (*bfd_error_handler_type) PARAMS ((const char *, ...));
3002
3003 bfd_error_handler_type
3004 bfd_set_error_handler  PARAMS ((bfd_error_handler_type));
3005
3006 void
3007 bfd_set_error_program_name  PARAMS ((const char *));
3008
3009 bfd_error_handler_type
3010 bfd_get_error_handler  PARAMS ((void));
3011
3012 long
3013 bfd_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
3014
3015 long
3016 bfd_canonicalize_reloc
3017  PARAMS ((bfd *abfd,
3018     asection *sec,
3019     arelent **loc,
3020     asymbol **syms));
3021
3022 void
3023 bfd_set_reloc
3024  PARAMS ((bfd *abfd, asection *sec, arelent **rel, unsigned int count)
3025
3026     );
3027
3028 boolean
3029 bfd_set_file_flags PARAMS ((bfd *abfd, flagword flags));
3030
3031 int
3032 bfd_get_arch_size  PARAMS ((bfd *abfd));
3033
3034 int
3035 bfd_get_sign_extend_vma  PARAMS ((bfd *abfd));
3036
3037 boolean
3038 bfd_set_start_address PARAMS ((bfd *abfd, bfd_vma vma));
3039
3040 long
3041 bfd_get_mtime PARAMS ((bfd *abfd));
3042
3043 long
3044 bfd_get_size PARAMS ((bfd *abfd));
3045
3046 int
3047 bfd_get_gp_size PARAMS ((bfd *abfd));
3048
3049 void
3050 bfd_set_gp_size PARAMS ((bfd *abfd, int i));
3051
3052 bfd_vma
3053 bfd_scan_vma PARAMS ((CONST char *string, CONST char **end, int base));
3054
3055 boolean
3056 bfd_copy_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
3057
3058 #define bfd_copy_private_bfd_data(ibfd, obfd) \
3059      BFD_SEND (obfd, _bfd_copy_private_bfd_data, \
3060                (ibfd, obfd))
3061 boolean
3062 bfd_merge_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
3063
3064 #define bfd_merge_private_bfd_data(ibfd, obfd) \
3065      BFD_SEND (obfd, _bfd_merge_private_bfd_data, \
3066                (ibfd, obfd))
3067 boolean
3068 bfd_set_private_flags PARAMS ((bfd *abfd, flagword flags));
3069
3070 #define bfd_set_private_flags(abfd, flags) \
3071      BFD_SEND (abfd, _bfd_set_private_flags, \
3072                (abfd, flags))
3073 #define bfd_sizeof_headers(abfd, reloc) \
3074      BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
3075
3076 #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
3077      BFD_SEND (abfd, _bfd_find_nearest_line,  (abfd, sec, syms, off, file, func, line))
3078
3079        /* Do these three do anything useful at all, for any back end?  */
3080 #define bfd_debug_info_start(abfd) \
3081         BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
3082
3083 #define bfd_debug_info_end(abfd) \
3084         BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
3085
3086 #define bfd_debug_info_accumulate(abfd, section) \
3087         BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
3088
3089
3090 #define bfd_stat_arch_elt(abfd, stat) \
3091         BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
3092
3093 #define bfd_update_armap_timestamp(abfd) \
3094         BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
3095
3096 #define bfd_set_arch_mach(abfd, arch, mach)\
3097         BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
3098
3099 #define bfd_relax_section(abfd, section, link_info, again) \
3100        BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
3101
3102 #define bfd_gc_sections(abfd, link_info) \
3103        BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info))
3104
3105 #define bfd_link_hash_table_create(abfd) \
3106        BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
3107
3108 #define bfd_link_add_symbols(abfd, info) \
3109        BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
3110
3111 #define bfd_final_link(abfd, info) \
3112        BFD_SEND (abfd, _bfd_final_link, (abfd, info))
3113
3114 #define bfd_free_cached_info(abfd) \
3115        BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
3116
3117 #define bfd_get_dynamic_symtab_upper_bound(abfd) \
3118        BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
3119
3120 #define bfd_print_private_bfd_data(abfd, file)\
3121        BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
3122
3123 #define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
3124        BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
3125
3126 #define bfd_get_dynamic_reloc_upper_bound(abfd) \
3127        BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
3128
3129 #define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
3130        BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
3131
3132 extern bfd_byte *bfd_get_relocated_section_contents
3133        PARAMS ((bfd *, struct bfd_link_info *,
3134                  struct bfd_link_order *, bfd_byte *,
3135                  boolean, asymbol **));
3136
3137 symindex
3138 bfd_get_next_mapent PARAMS ((bfd *abfd, symindex previous, carsym **sym));
3139
3140 boolean
3141 bfd_set_archive_head PARAMS ((bfd *output, bfd *new_head));
3142
3143 bfd *
3144 bfd_openr_next_archived_file PARAMS ((bfd *archive, bfd *previous));
3145
3146 CONST char *
3147 bfd_core_file_failing_command PARAMS ((bfd *abfd));
3148
3149 int
3150 bfd_core_file_failing_signal PARAMS ((bfd *abfd));
3151
3152 boolean
3153 core_file_matches_executable_p
3154  PARAMS ((bfd *core_bfd, bfd *exec_bfd));
3155
3156 #define BFD_SEND(bfd, message, arglist) \
3157                ((*((bfd)->xvec->message)) arglist)
3158
3159 #ifdef DEBUG_BFD_SEND
3160 #undef BFD_SEND
3161 #define BFD_SEND(bfd, message, arglist) \
3162   (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
3163     ((*((bfd)->xvec->message)) arglist) : \
3164     (bfd_assert (__FILE__,__LINE__), NULL))
3165 #endif
3166 #define BFD_SEND_FMT(bfd, message, arglist) \
3167             (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
3168
3169 #ifdef DEBUG_BFD_SEND
3170 #undef BFD_SEND_FMT
3171 #define BFD_SEND_FMT(bfd, message, arglist) \
3172   (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
3173    (((bfd)->xvec->message[(int)((bfd)->format)]) arglist) : \
3174    (bfd_assert (__FILE__,__LINE__), NULL))
3175 #endif
3176 enum bfd_flavour {
3177   bfd_target_unknown_flavour,
3178   bfd_target_aout_flavour,
3179   bfd_target_coff_flavour,
3180   bfd_target_ecoff_flavour,
3181   bfd_target_xcoff_flavour,
3182   bfd_target_elf_flavour,
3183   bfd_target_ieee_flavour,
3184   bfd_target_nlm_flavour,
3185   bfd_target_oasys_flavour,
3186   bfd_target_tekhex_flavour,
3187   bfd_target_srec_flavour,
3188   bfd_target_ihex_flavour,
3189   bfd_target_som_flavour,
3190   bfd_target_os9k_flavour,
3191   bfd_target_versados_flavour,
3192   bfd_target_msdos_flavour,
3193   bfd_target_ovax_flavour,
3194   bfd_target_evax_flavour
3195 };
3196
3197 enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
3198
3199 /* Forward declaration.  */
3200 typedef struct bfd_link_info _bfd_link_info;
3201
3202 typedef struct bfd_target
3203 {
3204   char *name;
3205   enum bfd_flavour flavour;
3206   enum bfd_endian byteorder;
3207   enum bfd_endian header_byteorder;
3208   flagword object_flags;
3209   flagword section_flags;
3210   char symbol_leading_char;
3211   char ar_pad_char;
3212   unsigned short ar_max_namelen;
3213   bfd_vma      (*bfd_getx64) PARAMS ((const bfd_byte *));
3214   bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *));
3215   void         (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
3216   bfd_vma      (*bfd_getx32) PARAMS ((const bfd_byte *));
3217   bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *));
3218   void         (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
3219   bfd_vma      (*bfd_getx16) PARAMS ((const bfd_byte *));
3220   bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *));
3221   void         (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
3222   bfd_vma      (*bfd_h_getx64) PARAMS ((const bfd_byte *));
3223   bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *));
3224   void         (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
3225   bfd_vma      (*bfd_h_getx32) PARAMS ((const bfd_byte *));
3226   bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *));
3227   void         (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
3228   bfd_vma      (*bfd_h_getx16) PARAMS ((const bfd_byte *));
3229   bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *));
3230   void         (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
3231   const struct bfd_target *(*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
3232   boolean             (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
3233   boolean             (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
3234
3235   /* Generic entry points.  */
3236 #define BFD_JUMP_TABLE_GENERIC(NAME)\
3237 CAT(NAME,_close_and_cleanup),\
3238 CAT(NAME,_bfd_free_cached_info),\
3239 CAT(NAME,_new_section_hook),\
3240 CAT(NAME,_get_section_contents),\
3241 CAT(NAME,_get_section_contents_in_window)
3242
3243   /* Called when the BFD is being closed to do any necessary cleanup.  */
3244   boolean       (*_close_and_cleanup) PARAMS ((bfd *));
3245   /* Ask the BFD to free all cached information.  */
3246   boolean (*_bfd_free_cached_info) PARAMS ((bfd *));
3247   /* Called when a new section is created.  */
3248   boolean       (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
3249   /* Read the contents of a section.  */
3250   boolean       (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
3251                                             file_ptr, bfd_size_type));
3252   boolean       (*_bfd_get_section_contents_in_window)
3253                           PARAMS ((bfd *, sec_ptr, bfd_window *,
3254                                    file_ptr, bfd_size_type));
3255
3256   /* Entry points to copy private data.  */
3257 #define BFD_JUMP_TABLE_COPY(NAME)\
3258 CAT(NAME,_bfd_copy_private_bfd_data),\
3259 CAT(NAME,_bfd_merge_private_bfd_data),\
3260 CAT(NAME,_bfd_copy_private_section_data),\
3261 CAT(NAME,_bfd_copy_private_symbol_data),\
3262 CAT(NAME,_bfd_set_private_flags),\
3263 CAT(NAME,_bfd_print_private_bfd_data)\
3264   /* Called to copy BFD general private data from one object file
3265      to another.  */
3266   boolean       (*_bfd_copy_private_bfd_data) PARAMS ((bfd *, bfd *));
3267   /* Called to merge BFD general private data from one object file
3268      to a common output file when linking.  */
3269   boolean       (*_bfd_merge_private_bfd_data) PARAMS ((bfd *, bfd *));
3270   /* Called to copy BFD private section data from one object file
3271      to another.  */
3272   boolean       (*_bfd_copy_private_section_data) PARAMS ((bfd *, sec_ptr,
3273                                                        bfd *, sec_ptr));
3274   /* Called to copy BFD private symbol data from one symbol
3275      to another.  */
3276   boolean       (*_bfd_copy_private_symbol_data) PARAMS ((bfd *, asymbol *,
3277                                                           bfd *, asymbol *));
3278   /* Called to set private backend flags */
3279   boolean       (*_bfd_set_private_flags) PARAMS ((bfd *, flagword));
3280
3281   /* Called to print private BFD data */
3282   boolean       (*_bfd_print_private_bfd_data) PARAMS ((bfd *, PTR));
3283
3284   /* Core file entry points.  */
3285 #define BFD_JUMP_TABLE_CORE(NAME)\
3286 CAT(NAME,_core_file_failing_command),\
3287 CAT(NAME,_core_file_failing_signal),\
3288 CAT(NAME,_core_file_matches_executable_p)
3289   char *   (*_core_file_failing_command) PARAMS ((bfd *));
3290   int      (*_core_file_failing_signal) PARAMS ((bfd *));
3291   boolean  (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
3292
3293   /* Archive entry points.  */
3294 #define BFD_JUMP_TABLE_ARCHIVE(NAME)\
3295 CAT(NAME,_slurp_armap),\
3296 CAT(NAME,_slurp_extended_name_table),\
3297 CAT(NAME,_construct_extended_name_table),\
3298 CAT(NAME,_truncate_arname),\
3299 CAT(NAME,_write_armap),\
3300 CAT(NAME,_read_ar_hdr),\
3301 CAT(NAME,_openr_next_archived_file),\
3302 CAT(NAME,_get_elt_at_index),\
3303 CAT(NAME,_generic_stat_arch_elt),\
3304 CAT(NAME,_update_armap_timestamp)
3305   boolean  (*_bfd_slurp_armap) PARAMS ((bfd *));
3306   boolean  (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
3307   boolean  (*_bfd_construct_extended_name_table)
3308              PARAMS ((bfd *, char **, bfd_size_type *, const char **));
3309   void     (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
3310   boolean  (*write_armap) PARAMS ((bfd *arch,
3311                               unsigned int elength,
3312                               struct orl *map,
3313                               unsigned int orl_count,
3314                               int stridx));
3315   PTR (*_bfd_read_ar_hdr_fn) PARAMS ((bfd *));
3316   bfd *    (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
3317 #define bfd_get_elt_at_index(b,i) BFD_SEND(b, _bfd_get_elt_at_index, (b,i))
3318   bfd *    (*_bfd_get_elt_at_index) PARAMS ((bfd *, symindex));
3319   int      (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
3320   boolean  (*_bfd_update_armap_timestamp) PARAMS ((bfd *));
3321
3322   /* Entry points used for symbols.  */
3323 #define BFD_JUMP_TABLE_SYMBOLS(NAME)\
3324 CAT(NAME,_get_symtab_upper_bound),\
3325 CAT(NAME,_get_symtab),\
3326 CAT(NAME,_make_empty_symbol),\
3327 CAT(NAME,_print_symbol),\
3328 CAT(NAME,_get_symbol_info),\
3329 CAT(NAME,_bfd_is_local_label_name),\
3330 CAT(NAME,_get_lineno),\
3331 CAT(NAME,_find_nearest_line),\
3332 CAT(NAME,_bfd_make_debug_symbol),\
3333 CAT(NAME,_read_minisymbols),\
3334 CAT(NAME,_minisymbol_to_symbol)
3335   long  (*_bfd_get_symtab_upper_bound) PARAMS ((bfd *));
3336   long  (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
3337                                              struct symbol_cache_entry **));
3338   struct symbol_cache_entry  *
3339                 (*_bfd_make_empty_symbol) PARAMS ((bfd *));
3340   void          (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
3341                                       struct symbol_cache_entry *,
3342                                       bfd_print_symbol_type));
3343 #define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
3344   void          (*_bfd_get_symbol_info) PARAMS ((bfd *,
3345                                       struct symbol_cache_entry *,
3346                                       symbol_info *));
3347 #define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
3348   boolean       (*_bfd_is_local_label_name) PARAMS ((bfd *, const char *));
3349
3350   alent *    (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
3351   boolean    (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
3352                     struct sec *section, struct symbol_cache_entry **symbols,
3353                     bfd_vma offset, CONST char **file, CONST char **func,
3354                     unsigned int *line));
3355  /* Back-door to allow format-aware applications to create debug symbols
3356     while using BFD for everything else.  Currently used by the assembler
3357     when creating COFF files.  */
3358   asymbol *  (*_bfd_make_debug_symbol) PARAMS ((
3359        bfd *abfd,
3360        void *ptr,
3361        unsigned long size));
3362 #define bfd_read_minisymbols(b, d, m, s) \
3363   BFD_SEND (b, _read_minisymbols, (b, d, m, s))
3364   long  (*_read_minisymbols) PARAMS ((bfd *, boolean, PTR *,
3365                                       unsigned int *));
3366 #define bfd_minisymbol_to_symbol(b, d, m, f) \
3367   BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
3368   asymbol *(*_minisymbol_to_symbol) PARAMS ((bfd *, boolean, const PTR,
3369                                              asymbol *));
3370
3371   /* Routines for relocs.  */
3372 #define BFD_JUMP_TABLE_RELOCS(NAME)\
3373 CAT(NAME,_get_reloc_upper_bound),\
3374 CAT(NAME,_canonicalize_reloc),\
3375 CAT(NAME,_bfd_reloc_type_lookup)
3376   long  (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
3377   long  (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
3378                                             struct symbol_cache_entry **));
3379   /* See documentation on reloc types.  */
3380   reloc_howto_type *
3381        (*reloc_type_lookup) PARAMS ((bfd *abfd,
3382                                      bfd_reloc_code_real_type code));
3383
3384   /* Routines used when writing an object file.  */
3385 #define BFD_JUMP_TABLE_WRITE(NAME)\
3386 CAT(NAME,_set_arch_mach),\
3387 CAT(NAME,_set_section_contents)
3388   boolean    (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
3389                     unsigned long));
3390   boolean       (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
3391                                             file_ptr, bfd_size_type));
3392
3393   /* Routines used by the linker.  */
3394 #define BFD_JUMP_TABLE_LINK(NAME)\
3395 CAT(NAME,_sizeof_headers),\
3396 CAT(NAME,_bfd_get_relocated_section_contents),\
3397 CAT(NAME,_bfd_relax_section),\
3398 CAT(NAME,_bfd_link_hash_table_create),\
3399 CAT(NAME,_bfd_link_add_symbols),\
3400 CAT(NAME,_bfd_final_link),\
3401 CAT(NAME,_bfd_link_split_section),\
3402 CAT(NAME,_bfd_gc_sections)
3403   int        (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
3404   bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
3405                     struct bfd_link_info *, struct bfd_link_order *,
3406                     bfd_byte *data, boolean relocateable,
3407                     struct symbol_cache_entry **));
3408
3409   boolean    (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
3410                     struct bfd_link_info *, boolean *again));
3411
3412   /* Create a hash table for the linker.  Different backends store
3413      different information in this table.  */
3414   struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *));
3415
3416   /* Add symbols from this object file into the hash table.  */
3417   boolean (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
3418
3419   /* Do a link based on the link_order structures attached to each
3420      section of the BFD.  */
3421   boolean (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *));
3422
3423   /* Should this section be split up into smaller pieces during linking.  */
3424   boolean (*_bfd_link_split_section) PARAMS ((bfd *, struct sec *));
3425
3426   /* Remove sections that are not referenced from the output.  */
3427   boolean (*_bfd_gc_sections) PARAMS ((bfd *, struct bfd_link_info *));
3428
3429   /* Routines to handle dynamic symbols and relocs.  */
3430 #define BFD_JUMP_TABLE_DYNAMIC(NAME)\
3431 CAT(NAME,_get_dynamic_symtab_upper_bound),\
3432 CAT(NAME,_canonicalize_dynamic_symtab),\
3433 CAT(NAME,_get_dynamic_reloc_upper_bound),\
3434 CAT(NAME,_canonicalize_dynamic_reloc)
3435   /* Get the amount of memory required to hold the dynamic symbols. */
3436   long  (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *));
3437   /* Read in the dynamic symbols.  */
3438   long  (*_bfd_canonicalize_dynamic_symtab)
3439     PARAMS ((bfd *, struct symbol_cache_entry **));
3440   /* Get the amount of memory required to hold the dynamic relocs.  */
3441   long  (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *));
3442   /* Read in the dynamic relocs.  */
3443   long  (*_bfd_canonicalize_dynamic_reloc)
3444     PARAMS ((bfd *, arelent **, struct symbol_cache_entry **));
3445
3446  /* Opposite endian version of this target.  */
3447  const struct bfd_target * alternative_target;
3448
3449  PTR backend_data;
3450
3451 } bfd_target;
3452 boolean
3453 bfd_set_default_target  PARAMS ((const char *name));
3454
3455 const bfd_target *
3456 bfd_find_target PARAMS ((CONST char *target_name, bfd *abfd));
3457
3458 const char **
3459 bfd_target_list PARAMS ((void));
3460
3461 const bfd_target *
3462 bfd_search_for_target  PARAMS ((int (* search_func)(const bfd_target *, void *), void *));
3463
3464 boolean
3465 bfd_check_format PARAMS ((bfd *abfd, bfd_format format));
3466
3467 boolean
3468 bfd_check_format_matches PARAMS ((bfd *abfd, bfd_format format, char ***matching));
3469
3470 boolean
3471 bfd_set_format PARAMS ((bfd *abfd, bfd_format format));
3472
3473 CONST char *
3474 bfd_format_string PARAMS ((bfd_format format));
3475
3476 #ifdef __cplusplus
3477 }
3478 #endif
3479 #endif