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