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