bfd/bfd-in2.h

   1 /* Main header file for the bfd library -- portable access to object files.
   2    Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
   3    Contributed by Cygnus Support.
   4
   5 ** NOTE: bfd.h and bfd-in2.h are GENERATED files.  Don't change them;
   6 ** instead, change bfd-in.h or the other BFD source files processed to
   7 ** generate these files.
   8
   9 This file is part of BFD, the Binary File Descriptor library.
  10
  11 This program is free software; you can redistribute it and/or modify
  12 it under the terms of the GNU General Public License as published by
  13 the Free Software Foundation; either version 2 of the License, or
  14 (at your option) any later version.
  15
  16 This program is distributed in the hope that it will be useful,
  17 but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 GNU General Public License for more details.
  20
  21 You should have received a copy of the GNU General Public License
  22 along with this program; if not, write to the Free Software
  23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  24
  25 /* bfd.h -- The only header file required by users of the bfd library
  26
  27 The bfd.h file is generated from bfd-in.h and various .c files; if you
  28 change it, your changes will probably be lost.
  29
  30 All the prototypes and definitions following the comment "THE FOLLOWING
  31 IS EXTRACTED FROM THE SOURCE" are extracted from the source files for
  32 BFD.  If you change it, someone oneday will extract it from the source
  33 again, and your changes will be lost.  To save yourself from this bind,
  34 change the definitions in the source in the bfd directory.  Type "make
  35 docs" and then "make headers" in that directory, and magically this file
  36 will change to reflect your changes.
  37
  38 If you don't have the tools to perform the extraction, then you are
  39 safe from someone on your system trampling over your header files.
  40 You should still maintain the equivalence between the source and this
  41 file though; every change you make to the .c file should be reflected
  42 here.  */
  43
  44 #ifndef __BFD_H_SEEN__
  45 #define __BFD_H_SEEN__
  46
  47 #include "ansidecl.h"
  48 #include "obstack.h"
  49
  50 /* These two lines get substitutions done by commands in Makefile.in.  */
  51 #define BFD_VERSION   "@VERSION@"
  52 #define BFD_ARCH_SIZE @WORDSIZE@
  53
  54 #if BFD_ARCH_SIZE >= 64
  55 #define BFD64
  56 #endif
  57
  58 #ifndef INLINE
  59 #if __GNUC__ >= 2
  60 #define INLINE __inline__
  61 #else
  62 #define INLINE
  63 #endif
  64 #endif
  65
  66 /* 64-bit type definition (if any) from bfd's sysdep.h goes here */
  67
  68
  69 /* forward declaration */
  70 typedef struct _bfd bfd;
  71
  72 /* To squelch erroneous compiler warnings ("illegal pointer
  73    combination") from the SVR3 compiler, we would like to typedef
  74    boolean to int (it doesn't like functions which return boolean.
  75    Making sure they are never implicitly declared to return int
  76    doesn't seem to help).  But this file is not configured based on
  77    the host.  */
  78 /* General rules: functions which are boolean return true on success
  79    and false on failure (unless they're a predicate).   -- bfd.doc */
  80 /* I'm sure this is going to break something and someone is going to
  81    force me to change it. */
  82 /* typedef enum boolean {false, true} boolean; */
  83 /* Yup, SVR4 has a "typedef enum boolean" in <sys/types.h>  -fnf */
  84 /* It gets worse if the host also defines a true/false enum... -sts */
  85 #ifndef TRUE_FALSE_ALREADY_DEFINED
  86 typedef enum bfd_boolean {false, true} boolean;
  87 #define BFD_TRUE_FALSE
  88 #else
  89 typedef enum bfd_boolean {bfd_false, bfd_true} boolean;
  90 #endif
  91
  92 /* A pointer to a position in a file.  */
  93 /* FIXME:  This should be using off_t from <sys/types.h>.
  94    For now, try to avoid breaking stuff by not including <sys/types.h> here.
  95    This will break on systems with 64-bit file offsets (e.g. 4.4BSD).
  96    Probably the best long-term answer is to avoid using file_ptr AND off_t
  97    in this header file, and to handle this in the BFD implementation
  98    rather than in its interface.  */
  99 /* typedef off_t        file_ptr; */
 100 typedef long int file_ptr;
 101
 102 /* Support for different sizes of target format ints and addresses.
 103    If the host implements 64-bit values, it defines BFD_HOST_64_BIT to
 104    be the appropriate type.  Otherwise, this code will fall back on
 105    gcc's "long long" type if gcc is being used.  BFD_HOST_64_BIT must
 106    be defined in such a way as to be a valid type name by itself or
 107    with "unsigned" prefixed.  It should be a signed type by itself.
 108
 109    If neither is the case, then compilation will fail if 64-bit
 110    targets are requested.  If you don't request any 64-bit targets,
 111    you should be safe. */
 112
 113 #ifdef  BFD64
 114
 115 #if defined (__GNUC__) && !defined (BFD_HOST_64_BIT)
 116 #define BFD_HOST_64_BIT long long
 117 typedef BFD_HOST_64_BIT int64_type;
 118 typedef unsigned BFD_HOST_64_BIT uint64_type;
 119 #endif
 120
 121 #if !defined (uint64_type) && defined (__GNUC__)
 122 #define uint64_type unsigned long long
 123 #define int64_type long long
 124 #endif
 125 #ifndef uint64_typeLOW
 126 #define uint64_typeLOW(x) ((unsigned long)(((x) & 0xffffffff)))
 127 #define uint64_typeHIGH(x) ((unsigned long)(((x) >> 32) & 0xffffffff))
 128 #endif
 129
 130 typedef unsigned BFD_HOST_64_BIT bfd_vma;
 131 typedef BFD_HOST_64_BIT bfd_signed_vma;
 132 typedef unsigned BFD_HOST_64_BIT bfd_size_type;
 133 typedef unsigned BFD_HOST_64_BIT symvalue;
 134 #ifndef fprintf_vma
 135 #define fprintf_vma(s,x) \
 136                 fprintf(s,"%08lx%08lx", uint64_typeHIGH(x), uint64_typeLOW(x))
 137 #define sprintf_vma(s,x) \
 138                 sprintf(s,"%08lx%08lx", uint64_typeHIGH(x), uint64_typeLOW(x))
 139 #endif
 140 #else /* not BFD64  */
 141
 142 /* Represent a target address.  Also used as a generic unsigned type
 143    which is guaranteed to be big enough to hold any arithmetic types
 144    we need to deal with.  */
 145 typedef unsigned long bfd_vma;
 146
 147 /* A generic signed type which is guaranteed to be big enough to hold any
 148    arithmetic types we need to deal with.  Can be assumed to be compatible
 149    with bfd_vma in the same way that signed and unsigned ints are compatible
 150    (as parameters, in assignment, etc).  */
 151 typedef long bfd_signed_vma;
 152
 153 typedef unsigned long symvalue;
 154 typedef unsigned long bfd_size_type;
 155
 156 /* Print a bfd_vma x on stream s.  */
 157 #define fprintf_vma(s,x) fprintf(s, "%08lx", x)
 158 #define sprintf_vma(s,x) sprintf(s, "%08lx", x)
 159 #endif /* not BFD64  */
 160 #define printf_vma(x) fprintf_vma(stdout,x)
 161
 162 typedef unsigned int flagword;  /* 32 bits of flags */
 163 \f
 164 /** File formats */
 165
 166 typedef enum bfd_format {
 167               bfd_unknown = 0,  /* file format is unknown */
 168               bfd_object,       /* linker/assember/compiler output */
 169               bfd_archive,      /* object archive file */
 170               bfd_core,         /* core dump */
 171               bfd_type_end}     /* marks the end; don't use it! */
 172          bfd_format;
 173
 174 /* Values that may appear in the flags field of a BFD.  These also
 175    appear in the object_flags field of the bfd_target structure, where
 176    they indicate the set of flags used by that backend (not all flags
 177    are meaningful for all object file formats) (FIXME: at the moment,
 178    the object_flags values have mostly just been copied from backend
 179    to another, and are not necessarily correct).  */
 180
 181 /* No flags.  */
 182 #define NO_FLAGS        0x00
 183
 184 /* BFD contains relocation entries.  */
 185 #define HAS_RELOC       0x01
 186
 187 /* BFD is directly executable.  */
 188 #define EXEC_P          0x02
 189
 190 /* BFD has line number information (basically used for F_LNNO in a
 191    COFF header).  */
 192 #define HAS_LINENO      0x04
 193
 194 /* BFD has debugging information.  */
 195 #define HAS_DEBUG       0x08
 196
 197 /* BFD has symbols.  */
 198 #define HAS_SYMS        0x10
 199
 200 /* BFD has local symbols (basically used for F_LSYMS in a COFF
 201    header).  */
 202 #define HAS_LOCALS      0x20
 203
 204 /* BFD is a dynamic object.  */
 205 #define DYNAMIC         0x40
 206
 207 /* Text section is write protected (if D_PAGED is not set, this is
 208    like an a.out NMAGIC file) (the linker sets this by default, but
 209    clears it for -r or -N).  */
 210 #define WP_TEXT         0x80
 211
 212 /* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
 213    linker sets this by default, but clears it for -r or -n or -N).  */
 214 #define D_PAGED         0x100
 215
 216 /* BFD is relaxable (this means that bfd_relax_section may be able to
 217    do something) (sometimes bfd_relax_section can do something even if
 218    this is not set).  */
 219 #define BFD_IS_RELAXABLE 0x200
 220
 221 /* This may be set before writing out a BFD to request using a
 222    traditional format.  For example, this is used to request that when
 223    writing out an a.out object the symbols not be hashed to eliminate
 224    duplicates.  */
 225 #define BFD_TRADITIONAL_FORMAT 0x400
 226 \f
 227 /* symbols and relocation */
 228
 229 /* A count of carsyms (canonical archive symbols).  */
 230 typedef unsigned long symindex;
 231
 232 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
 233
 234 /* General purpose part of a symbol X;
 235    target specific parts are in libcoff.h, libaout.h, etc.  */
 236
 237 #define bfd_get_section(x) ((x)->section)
 238 #define bfd_get_output_section(x) ((x)->section->output_section)
 239 #define bfd_set_section(x,y) ((x)->section) = (y)
 240 #define bfd_asymbol_base(x) ((x)->section->vma)
 241 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
 242 #define bfd_asymbol_name(x) ((x)->name)
 243 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
 244 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
 245 #define bfd_asymbol_flavour(x) (bfd_asymbol_bfd(x)->xvec->flavour)
 246
 247 /* A canonical archive symbol.  */
 248 /* This is a type pun with struct ranlib on purpose! */
 249 typedef struct carsym {
 250   char *name;
 251   file_ptr file_offset;         /* look here to find the file */
 252 } carsym;                       /* to make these you call a carsymogen */
 253
 254
 255 /* Used in generating armaps (archive tables of contents).
 256    Perhaps just a forward definition would do? */
 257 struct orl {                    /* output ranlib */
 258   char **name;                  /* symbol name */
 259   file_ptr pos;                 /* bfd* or file position */
 260   int namidx;                   /* index into string table */
 261 };
 262
 263 \f
 264
 265 /* Linenumber stuff */
 266 typedef struct lineno_cache_entry {
 267   unsigned int line_number;     /* Linenumber from start of function*/
 268   union {
 269     struct symbol_cache_entry *sym; /* Function name */
 270     unsigned long offset;       /* Offset into section */
 271   } u;
 272 } alent;
 273 \f
 274 /* object and core file sections */
 275
 276 #define align_power(addr, align)        \
 277         ( ((addr) + ((1<<(align))-1)) & (-1 << (align)))
 278
 279 typedef struct sec *sec_ptr;
 280
 281 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0)
 282 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0)
 283 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0)
 284 #define bfd_section_name(bfd, ptr) ((ptr)->name)
 285 #define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
 286 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
 287 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
 288 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
 289 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
 290
 291 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
 292
 293 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma= (val)), ((ptr)->user_set_vma = true), true)
 294 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),true)
 295 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),true)
 296
 297 typedef struct stat stat_type;
 298 \f
 299 typedef enum bfd_print_symbol
 300 {
 301   bfd_print_symbol_name,
 302   bfd_print_symbol_more,
 303   bfd_print_symbol_all
 304 } bfd_print_symbol_type;
 305
 306 /* Information about a symbol that nm needs.  */
 307
 308 typedef struct _symbol_info
 309 {
 310   symvalue value;
 311   char type;
 312   CONST char *name;            /* Symbol name.  */
 313   char stab_other;             /* Unused. */
 314   short stab_desc;             /* Info for N_TYPE.  */
 315   CONST char *stab_name;
 316 } symbol_info;
 317 \f
 318 /* Hash table routines.  There is no way to free up a hash table.  */
 319
 320 /* An element in the hash table.  Most uses will actually use a larger
 321    structure, and an instance of this will be the first field.  */
 322
 323 struct bfd_hash_entry
 324 {
 325   /* Next entry for this hash code.  */
 326   struct bfd_hash_entry *next;
 327   /* String being hashed.  */
 328   const char *string;
 329   /* Hash code.  This is the full hash code, not the index into the
 330      table.  */
 331   unsigned long hash;
 332 };
 333
 334 /* A hash table.  */
 335
 336 struct bfd_hash_table
 337 {
 338   /* The hash array.  */
 339   struct bfd_hash_entry **table;
 340   /* The number of slots in the hash table.  */
 341   unsigned int size;
 342   /* A function used to create new elements in the hash table.  The
 343      first entry is itself a pointer to an element.  When this
 344      function is first invoked, this pointer will be NULL.  However,
 345      having the pointer permits a hierarchy of method functions to be
 346      built each of which calls the function in the superclass.  Thus
 347      each function should be written to allocate a new block of memory
 348      only if the argument is NULL.  */
 349   struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
 350                                              struct bfd_hash_table *,
 351                                              const char *));
 352   /* An obstack for this hash table.  */
 353   struct obstack memory;
 354 };
 355
 356 /* Initialize a hash table.  */
 357 extern boolean bfd_hash_table_init
 358   PARAMS ((struct bfd_hash_table *,
 359            struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 360                                        struct bfd_hash_table *,
 361                                        const char *)));
 362
 363 /* Initialize a hash table specifying a size.  */
 364 extern boolean bfd_hash_table_init_n
 365   PARAMS ((struct bfd_hash_table *,
 366            struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 367                                        struct bfd_hash_table *,
 368                                        const char *),
 369            unsigned int size));
 370
 371 /* Free up a hash table.  */
 372 extern void bfd_hash_table_free PARAMS ((struct bfd_hash_table *));
 373
 374 /* Look up a string in a hash table.  If CREATE is true, a new entry
 375    will be created for this string if one does not already exist.  The
 376    COPY argument must be true if this routine should copy the string
 377    into newly allocated memory when adding an entry.  */
 378 extern struct bfd_hash_entry *bfd_hash_lookup
 379   PARAMS ((struct bfd_hash_table *, const char *, boolean create,
 380            boolean copy));
 381
 382 /* Base method for creating a hash table entry.  */
 383 extern struct bfd_hash_entry *bfd_hash_newfunc
 384   PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
 385            const char *));
 386
 387 /* Grab some space for a hash table entry.  */
 388 extern PTR bfd_hash_allocate PARAMS ((struct bfd_hash_table *,
 389                                       unsigned int));
 390
 391 /* Traverse a hash table in a random order, calling a function on each
 392    element.  If the function returns false, the traversal stops.  The
 393    INFO argument is passed to the function.  */
 394 extern void bfd_hash_traverse PARAMS ((struct bfd_hash_table *,
 395                                        boolean (*) (struct bfd_hash_entry *,
 396                                                     PTR),
 397                                        PTR info));
 398 \f
 399 /* Semi-portable string concatenation in cpp.
 400    The CAT4 hack is to avoid a problem with some strict ANSI C preprocessors.
 401    The problem is, "32_" is not a valid preprocessing token, and we don't
 402    want extra underscores (e.g., "nlm_32_").  The XCAT2 macro will cause the
 403    inner CAT macros to be evaluated first, producing still-valid pp-tokens.
 404    Then the final concatenation can be done.  (Sigh.)  */
 405 #ifndef CAT
 406 #ifdef SABER
 407 #define CAT(a,b)        a##b
 408 #define CAT3(a,b,c)     a##b##c
 409 #define CAT4(a,b,c,d)   a##b##c##d
 410 #else
 411 #if defined(__STDC__) || defined(ALMOST_STDC)
 412 #define CAT(a,b) a##b
 413 #define CAT3(a,b,c) a##b##c
 414 #define XCAT2(a,b)      CAT(a,b)
 415 #define CAT4(a,b,c,d)   XCAT2(CAT(a,b),CAT(c,d))
 416 #else
 417 #define CAT(a,b) a/**/b
 418 #define CAT3(a,b,c) a/**/b/**/c
 419 #define CAT4(a,b,c,d)   a/**/b/**/c/**/d
 420 #endif
 421 #endif
 422 #endif
 423
 424 #define COFF_SWAP_TABLE (PTR) &bfd_coff_std_swap_table
 425 \f
 426 /* User program access to BFD facilities */
 427
 428 /* Direct I/O routines, for programs which know more about the object
 429    file than BFD does.  Use higher level routines if possible.  */
 430
 431 extern bfd_size_type bfd_read
 432   PARAMS ((PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
 433 extern bfd_size_type bfd_write
 434   PARAMS ((const PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
 435 extern int bfd_seek PARAMS ((bfd *abfd, file_ptr fp, int direction));
 436 extern long bfd_tell PARAMS ((bfd *abfd));
 437 extern int bfd_flush PARAMS ((bfd *abfd));
 438 extern int bfd_stat PARAMS ((bfd *abfd, struct stat *));
 439
 440 /* Cast from const char * to char * so that caller can assign to
 441    a char * without a warning.  */
 442 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
 443 #define bfd_get_cacheable(abfd) ((abfd)->cacheable)
 444 #define bfd_get_format(abfd) ((abfd)->format)
 445 #define bfd_get_target(abfd) ((abfd)->xvec->name)
 446 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
 447 #define bfd_get_file_flags(abfd) ((abfd)->flags)
 448 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
 449 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
 450 #define bfd_my_archive(abfd) ((abfd)->my_archive)
 451 #define bfd_has_map(abfd) ((abfd)->has_armap)
 452
 453 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
 454 #define bfd_usrdata(abfd) ((abfd)->usrdata)
 455
 456 #define bfd_get_start_address(abfd) ((abfd)->start_address)
 457 #define bfd_get_symcount(abfd) ((abfd)->symcount)
 458 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
 459 #define bfd_count_sections(abfd) ((abfd)->section_count)
 460
 461 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
 462
 463 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = (bool)), true)
 464
 465 /* Byte swapping routines.  */
 466
 467 bfd_vma         bfd_getb64         PARAMS ((const unsigned char *));
 468 bfd_vma         bfd_getl64         PARAMS ((const unsigned char *));
 469 bfd_signed_vma  bfd_getb_signed_64 PARAMS ((const unsigned char *));
 470 bfd_signed_vma  bfd_getl_signed_64 PARAMS ((const unsigned char *));
 471 bfd_vma         bfd_getb32         PARAMS ((const unsigned char *));
 472 bfd_vma         bfd_getl32         PARAMS ((const unsigned char *));
 473 bfd_signed_vma  bfd_getb_signed_32 PARAMS ((const unsigned char *));
 474 bfd_signed_vma  bfd_getl_signed_32 PARAMS ((const unsigned char *));
 475 bfd_vma         bfd_getb16         PARAMS ((const unsigned char *));
 476 bfd_vma         bfd_getl16         PARAMS ((const unsigned char *));
 477 bfd_signed_vma  bfd_getb_signed_16 PARAMS ((const unsigned char *));
 478 bfd_signed_vma  bfd_getl_signed_16 PARAMS ((const unsigned char *));
 479 void            bfd_putb64         PARAMS ((bfd_vma, unsigned char *));
 480 void            bfd_putl64         PARAMS ((bfd_vma, unsigned char *));
 481 void            bfd_putb32         PARAMS ((bfd_vma, unsigned char *));
 482 void            bfd_putl32         PARAMS ((bfd_vma, unsigned char *));
 483 void            bfd_putb16         PARAMS ((bfd_vma, unsigned char *));
 484 void            bfd_putl16         PARAMS ((bfd_vma, unsigned char *));
 485 \f
 486 /* Externally visible ECOFF routines.  */
 487
 488 #if defined(__STDC__) || defined(ALMOST_STDC)
 489 struct ecoff_debug_info;
 490 struct ecoff_debug_swap;
 491 struct ecoff_extr;
 492 struct symbol_cache_entry;
 493 struct bfd_link_info;
 494 #endif
 495 extern bfd_vma bfd_ecoff_get_gp_value PARAMS ((bfd * abfd));
 496 extern boolean bfd_ecoff_set_gp_value PARAMS ((bfd *abfd, bfd_vma gp_value));
 497 extern boolean bfd_ecoff_set_regmasks
 498   PARAMS ((bfd *abfd, unsigned long gprmask, unsigned long fprmask,
 499            unsigned long *cprmask));
 500 extern PTR bfd_ecoff_debug_init
 501   PARAMS ((bfd *output_bfd, struct ecoff_debug_info *output_debug,
 502            const struct ecoff_debug_swap *output_swap,
 503            struct bfd_link_info *));
 504 extern void bfd_ecoff_debug_free
 505   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 506            const struct ecoff_debug_swap *output_swap,
 507            struct bfd_link_info *));
 508 extern boolean bfd_ecoff_debug_accumulate
 509   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 510            const struct ecoff_debug_swap *output_swap,
 511            bfd *input_bfd, struct ecoff_debug_info *input_debug,
 512            const struct ecoff_debug_swap *input_swap,
 513            struct bfd_link_info *));
 514 extern boolean bfd_ecoff_debug_accumulate_other
 515   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 516            const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 517            struct bfd_link_info *));
 518 extern boolean bfd_ecoff_debug_externals
 519   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 520            const struct ecoff_debug_swap *swap,
 521            boolean relocateable,
 522            boolean (*get_extr) (struct symbol_cache_entry *,
 523                                 struct ecoff_extr *),
 524            void (*set_index) (struct symbol_cache_entry *,
 525                               bfd_size_type)));
 526 extern boolean bfd_ecoff_debug_one_external
 527   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 528            const struct ecoff_debug_swap *swap,
 529            const char *name, struct ecoff_extr *esym));
 530 extern bfd_size_type bfd_ecoff_debug_size
 531   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 532            const struct ecoff_debug_swap *swap));
 533 extern boolean bfd_ecoff_write_debug
 534   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 535            const struct ecoff_debug_swap *swap, file_ptr where));
 536 extern boolean bfd_ecoff_write_accumulated_debug
 537   PARAMS ((PTR handle, bfd *abfd, struct ecoff_debug_info *debug,
 538            const struct ecoff_debug_swap *swap,
 539            struct bfd_link_info *info, file_ptr where));
 540 extern boolean bfd_mips_ecoff_create_embedded_relocs
 541   PARAMS ((bfd *, struct bfd_link_info *, struct sec *, struct sec *,
 542            char **));
 543
 544 /* Externally visible ELF routines.  */
 545
 546 extern boolean bfd_elf32_record_link_assignment
 547   PARAMS ((bfd *, struct bfd_link_info *, const char *));
 548 extern boolean bfd_elf64_record_link_assignment
 549   PARAMS ((bfd *, struct bfd_link_info *, const char *));
 550 extern boolean bfd_elf32_size_dynamic_sections
 551   PARAMS ((bfd *, const char *, const char *, boolean,
 552            struct bfd_link_info *, struct sec **));
 553 extern boolean bfd_elf64_size_dynamic_sections
 554   PARAMS ((bfd *, const char *, const char *, boolean,
 555            struct bfd_link_info *, struct sec **));
 556 extern void bfd_elf_set_dt_needed_name PARAMS ((bfd *, const char *));
 557
 558 /* SunOS shared library support routines for the linker.  */
 559
 560 extern boolean bfd_sunos_record_link_assignment
 561   PARAMS ((bfd *, struct bfd_link_info *, const char *));
 562 extern boolean bfd_sunos_size_dynamic_sections
 563   PARAMS ((bfd *, struct bfd_link_info *, struct sec **, struct sec **,
 564            struct sec **));
 565
 566 /* Linux shared library support routines for the linker.  */
 567
 568 extern boolean bfd_linux_size_dynamic_sections
 569   PARAMS ((bfd *, struct bfd_link_info *));
 570
 571 /* And more from the source.  */
 572 void
 573 bfd_init PARAMS ((void));
 574
 575 bfd *
 576 bfd_openr PARAMS ((CONST char *filename, CONST char *target));
 577
 578 bfd *
 579 bfd_fdopenr PARAMS ((CONST char *filename, CONST char *target, int fd));
 580
 581 bfd *
 582 bfd_openw PARAMS ((CONST char *filename, CONST char *target));
 583
 584 boolean
 585 bfd_close PARAMS ((bfd *abfd));
 586
 587 boolean
 588 bfd_close_all_done PARAMS ((bfd *));
 589
 590 bfd_size_type
 591 bfd_alloc_size PARAMS ((bfd *abfd));
 592
 593 bfd *
 594 bfd_create PARAMS ((CONST char *filename, bfd *templ));
 595
 596
 597  /* Byte swapping macros for user section data.  */
 598
 599 #define bfd_put_8(abfd, val, ptr) \
 600                 (*((unsigned char *)(ptr)) = (unsigned char)(val))
 601 #define bfd_put_signed_8 \
 602                 bfd_put_8
 603 #define bfd_get_8(abfd, ptr) \
 604                 (*(unsigned char *)(ptr))
 605 #define bfd_get_signed_8(abfd, ptr) \
 606                 ((*(unsigned char *)(ptr) ^ 0x80) - 0x80)
 607
 608 #define bfd_put_16(abfd, val, ptr) \
 609                 BFD_SEND(abfd, bfd_putx16, ((val),(ptr)))
 610 #define bfd_put_signed_16 \
 611                  bfd_put_16
 612 #define bfd_get_16(abfd, ptr) \
 613                 BFD_SEND(abfd, bfd_getx16, (ptr))
 614 #define bfd_get_signed_16(abfd, ptr) \
 615                  BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
 616
 617 #define bfd_put_32(abfd, val, ptr) \
 618                 BFD_SEND(abfd, bfd_putx32, ((val),(ptr)))
 619 #define bfd_put_signed_32 \
 620                  bfd_put_32
 621 #define bfd_get_32(abfd, ptr) \
 622                 BFD_SEND(abfd, bfd_getx32, (ptr))
 623 #define bfd_get_signed_32(abfd, ptr) \
 624                  BFD_SEND(abfd, bfd_getx_signed_32, (ptr))
 625
 626 #define bfd_put_64(abfd, val, ptr) \
 627                 BFD_SEND(abfd, bfd_putx64, ((val), (ptr)))
 628 #define bfd_put_signed_64 \
 629                  bfd_put_64
 630 #define bfd_get_64(abfd, ptr) \
 631                 BFD_SEND(abfd, bfd_getx64, (ptr))
 632 #define bfd_get_signed_64(abfd, ptr) \
 633                  BFD_SEND(abfd, bfd_getx_signed_64, (ptr))
 634
 635
 636  /* Byte swapping macros for file header data.  */
 637
 638 #define bfd_h_put_8(abfd, val, ptr) \
 639                 bfd_put_8 (abfd, val, ptr)
 640 #define bfd_h_put_signed_8(abfd, val, ptr) \
 641                 bfd_put_8 (abfd, val, ptr)
 642 #define bfd_h_get_8(abfd, ptr) \
 643                 bfd_get_8 (abfd, ptr)
 644 #define bfd_h_get_signed_8(abfd, ptr) \
 645                 bfd_get_signed_8 (abfd, ptr)
 646
 647 #define bfd_h_put_16(abfd, val, ptr) \
 648                 BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
 649 #define bfd_h_put_signed_16 \
 650                  bfd_h_put_16
 651 #define bfd_h_get_16(abfd, ptr) \
 652                 BFD_SEND(abfd, bfd_h_getx16,(ptr))
 653 #define bfd_h_get_signed_16(abfd, ptr) \
 654                  BFD_SEND(abfd, bfd_h_getx_signed_16, (ptr))
 655
 656 #define bfd_h_put_32(abfd, val, ptr) \
 657                 BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
 658 #define bfd_h_put_signed_32 \
 659                  bfd_h_put_32
 660 #define bfd_h_get_32(abfd, ptr) \
 661                 BFD_SEND(abfd, bfd_h_getx32,(ptr))
 662 #define bfd_h_get_signed_32(abfd, ptr) \
 663                  BFD_SEND(abfd, bfd_h_getx_signed_32, (ptr))
 664
 665 #define bfd_h_put_64(abfd, val, ptr) \
 666                 BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
 667 #define bfd_h_put_signed_64 \
 668                  bfd_h_put_64
 669 #define bfd_h_get_64(abfd, ptr) \
 670                 BFD_SEND(abfd, bfd_h_getx64,(ptr))
 671 #define bfd_h_get_signed_64(abfd, ptr) \
 672                  BFD_SEND(abfd, bfd_h_getx_signed_64, (ptr))
 673
 674 typedef struct sec
 675 {
 676          /* The name of the section; the name isn't a copy, the pointer is
 677         the same as that passed to bfd_make_section. */
 678
 679     CONST char *name;
 680
 681          /* Which section is it; 0..nth.      */
 682
 683    int index;
 684
 685          /* The next section in the list belonging to the BFD, or NULL. */
 686
 687     struct sec *next;
 688
 689          /* The field flags contains attributes of the section. Some
 690            flags are read in from the object file, and some are
 691            synthesized from other information.  */
 692
 693     flagword flags;
 694
 695 #define SEC_NO_FLAGS   0x000
 696
 697          /* Tells the OS to allocate space for this section when loading.
 698            This is clear for a section containing debug information
 699            only. */
 700 #define SEC_ALLOC      0x001
 701
 702          /* Tells the OS to load the section from the file when loading.
 703            This is clear for a .bss section. */
 704 #define SEC_LOAD       0x002
 705
 706          /* The section contains data still to be relocated, so there is
 707            some relocation information too. */
 708 #define SEC_RELOC      0x004
 709
 710 #if 0    /* Obsolete ? */
 711 #define SEC_BALIGN     0x008
 712 #endif
 713
 714          /* A signal to the OS that the section contains read only
 715           data. */
 716 #define SEC_READONLY   0x010
 717
 718          /* The section contains code only. */
 719 #define SEC_CODE       0x020
 720
 721          /* The section contains data only. */
 722 #define SEC_DATA       0x040
 723
 724          /* The section will reside in ROM. */
 725 #define SEC_ROM        0x080
 726
 727          /* The section contains constructor information. This section
 728            type is used by the linker to create lists of constructors and
 729            destructors used by <<g++>>. When a back end sees a symbol
 730            which should be used in a constructor list, it creates a new
 731            section for the type of name (e.g., <<__CTOR_LIST__>>), attaches
 732            the symbol to it, and builds a relocation. To build the lists
 733            of constructors, all the linker has to do is catenate all the
 734            sections called <<__CTOR_LIST__>> and relocate the data
 735            contained within - exactly the operations it would peform on
 736            standard data. */
 737 #define SEC_CONSTRUCTOR 0x100
 738
 739          /* The section is a constuctor, and should be placed at the
 740           end of the text, data, or bss section(?). */
 741 #define SEC_CONSTRUCTOR_TEXT 0x1100
 742 #define SEC_CONSTRUCTOR_DATA 0x2100
 743 #define SEC_CONSTRUCTOR_BSS  0x3100
 744
 745          /* The section has contents - a data section could be
 746            <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>; a debug section could be
 747            <<SEC_HAS_CONTENTS>> */
 748 #define SEC_HAS_CONTENTS 0x200
 749
 750          /* An instruction to the linker to not output the section
 751            even if it has information which would normally be written. */
 752 #define SEC_NEVER_LOAD 0x400
 753
 754          /* The section is a COFF shared library section.  This flag is
 755            only for the linker.  If this type of section appears in
 756            the input file, the linker must copy it to the output file
 757            without changing the vma or size.  FIXME: Although this
 758            was originally intended to be general, it really is COFF
 759            specific (and the flag was renamed to indicate this).  It
 760            might be cleaner to have some more general mechanism to
 761            allow the back end to control what the linker does with
 762            sections. */
 763 #define SEC_COFF_SHARED_LIBRARY 0x800
 764
 765          /* The section is a common section (symbols may be defined
 766            multiple times, the value of a symbol is the amount of
 767            space it requires, and the largest symbol value is the one
 768            used).  Most targets have exactly one of these (which we
 769             translate to bfd_com_section_ptr), but ECOFF has two. */
 770 #define SEC_IS_COMMON 0x8000
 771
 772          /* The section contains only debugging information.  For
 773            example, this is set for ELF .debug and .stab sections.
 774            strip tests this flag to see if a section can be
 775            discarded. */
 776 #define SEC_DEBUGGING 0x10000
 777
 778          /* The contents of this section are held in memory pointed to
 779            by the contents field.  This is checked by
 780            bfd_get_section_contents, and the data is retrieved from
 781            memory if appropriate.  */
 782 #define SEC_IN_MEMORY 0x20000
 783
 784          /*  End of section flags.  */
 785
 786         /*  The virtual memory address of the section - where it will be
 787            at run time.  The symbols are relocated against this.  The
 788             user_set_vma flag is maintained by bfd; if it's not set, the
 789             backend can assign addresses (for example, in <<a.out>>, where
 790             the default address for <<.data>> is dependent on the specific
 791             target and various flags).  */
 792
 793    bfd_vma vma;
 794    boolean user_set_vma;
 795
 796         /*  The load address of the section - where it would be in a
 797            rom image; really only used for writing section header
 798             information. */
 799
 800    bfd_vma lma;
 801
 802          /* The size of the section in bytes, as it will be output.
 803            contains a value even if the section has no contents (e.g., the
 804            size of <<.bss>>). This will be filled in after relocation */
 805
 806    bfd_size_type _cooked_size;
 807
 808          /* The original size on disk of the section, in bytes.  Normally this
 809             value is the same as the size, but if some relaxing has
 810             been done, then this value will be bigger.  */
 811
 812    bfd_size_type _raw_size;
 813
 814          /* If this section is going to be output, then this value is the
 815            offset into the output section of the first byte in the input
 816            section. E.g., if this was going to start at the 100th byte in
 817            the output section, this value would be 100. */
 818
 819    bfd_vma output_offset;
 820
 821          /* The output section through which to map on output. */
 822
 823    struct sec *output_section;
 824
 825          /* The alignment requirement of the section, as an exponent of 2 -
 826            e.g., 3 aligns to 2^3 (or 8). */
 827
 828    unsigned int alignment_power;
 829
 830          /* If an input section, a pointer to a vector of relocation
 831            records for the data in this section. */
 832
 833    struct reloc_cache_entry *relocation;
 834
 835          /* If an output section, a pointer to a vector of pointers to
 836            relocation records for the data in this section. */
 837
 838    struct reloc_cache_entry **orelocation;
 839
 840          /* The number of relocation records in one of the above  */
 841
 842    unsigned reloc_count;
 843
 844          /* Information below is back end specific - and not always used
 845            or updated.  */
 846
 847          /* File position of section data    */
 848
 849    file_ptr filepos;
 850
 851          /* File position of relocation info */
 852
 853    file_ptr rel_filepos;
 854
 855          /* File position of line data       */
 856
 857    file_ptr line_filepos;
 858
 859          /* Pointer to data for applications */
 860
 861    PTR userdata;
 862
 863          /* If the SEC_IN_MEMORY flag is set, this points to the actual
 864            contents.  */
 865    unsigned char *contents;
 866
 867          /* Attached line number information */
 868
 869    alent *lineno;
 870
 871          /* Number of line number records   */
 872
 873    unsigned int lineno_count;
 874
 875          /* When a section is being output, this value changes as more
 876            linenumbers are written out */
 877
 878    file_ptr moving_line_filepos;
 879
 880          /* What the section number is in the target world  */
 881
 882    int target_index;
 883
 884    PTR used_by_bfd;
 885
 886          /* If this is a constructor section then here is a list of the
 887            relocations created to relocate items within it. */
 888
 889    struct relent_chain *constructor_chain;
 890
 891          /* The BFD which owns the section. */
 892
 893    bfd *owner;
 894
 895    boolean reloc_done;
 896           /* A symbol which points at this section only */
 897    struct symbol_cache_entry *symbol;
 898    struct symbol_cache_entry **symbol_ptr_ptr;
 899
 900    struct bfd_link_order *link_order_head;
 901    struct bfd_link_order *link_order_tail;
 902 } asection ;
 903
 904      /* These sections are global, and are managed by BFD.  The application
 905        and target back end are not permitted to change the values in
 906         these sections.  New code should use the section_ptr macros rather
 907        than referring directly to the const sections.  The const sections
 908        may eventually vanish.  */
 909 #define BFD_ABS_SECTION_NAME "*ABS*"
 910 #define BFD_UND_SECTION_NAME "*UND*"
 911 #define BFD_COM_SECTION_NAME "*COM*"
 912 #define BFD_IND_SECTION_NAME "*IND*"
 913
 914      /* the absolute section */
 915 extern const asection bfd_abs_section;
 916 #define bfd_abs_section_ptr ((asection *) &bfd_abs_section)
 917 #define bfd_is_abs_section(sec) ((sec) == bfd_abs_section_ptr)
 918      /* Pointer to the undefined section */
 919 extern const asection bfd_und_section;
 920 #define bfd_und_section_ptr ((asection *) &bfd_und_section)
 921 #define bfd_is_und_section(sec) ((sec) == bfd_und_section_ptr)
 922      /* Pointer to the common section */
 923 extern const asection bfd_com_section;
 924 #define bfd_com_section_ptr ((asection *) &bfd_com_section)
 925      /* Pointer to the indirect section */
 926 extern const asection bfd_ind_section;
 927 #define bfd_ind_section_ptr ((asection *) &bfd_ind_section)
 928 #define bfd_is_ind_section(sec) ((sec) == bfd_ind_section_ptr)
 929
 930 extern const struct symbol_cache_entry * const bfd_abs_symbol;
 931 extern const struct symbol_cache_entry * const bfd_com_symbol;
 932 extern const struct symbol_cache_entry * const bfd_und_symbol;
 933 extern const struct symbol_cache_entry * const bfd_ind_symbol;
 934 #define bfd_get_section_size_before_reloc(section) \
 935      (section->reloc_done ? (abort(),1): (section)->_raw_size)
 936 #define bfd_get_section_size_after_reloc(section) \
 937      ((section->reloc_done) ? (section)->_cooked_size: (abort(),1))
 938 asection *
 939 bfd_get_section_by_name PARAMS ((bfd *abfd, CONST char *name));
 940
 941 asection *
 942 bfd_make_section_old_way PARAMS ((bfd *abfd, CONST char *name));
 943
 944 asection *
 945 bfd_make_section_anyway PARAMS ((bfd *abfd, CONST char *name));
 946
 947 asection *
 948 bfd_make_section PARAMS ((bfd *, CONST char *name));
 949
 950 boolean
 951 bfd_set_section_flags PARAMS ((bfd *abfd, asection *sec, flagword flags));
 952
 953 void
 954 bfd_map_over_sections PARAMS ((bfd *abfd,
 955     void (*func)(bfd *abfd,
 956     asection *sect,
 957     PTR obj),
 958     PTR obj));
 959
 960 boolean
 961 bfd_set_section_size PARAMS ((bfd *abfd, asection *sec, bfd_size_type val));
 962
 963 boolean
 964 bfd_set_section_contents
 965  PARAMS ((bfd *abfd,
 966     asection *section,
 967     PTR data,
 968     file_ptr offset,
 969     bfd_size_type count));
 970
 971 boolean
 972 bfd_get_section_contents
 973  PARAMS ((bfd *abfd, asection *section, PTR location,
 974     file_ptr offset, bfd_size_type count));
 975
 976 boolean
 977 bfd_copy_private_section_data PARAMS ((bfd *ibfd, asection *isec, bfd *obfd, asection *osec));
 978
 979 #define bfd_copy_private_section_data(ibfd, isection, obfd, osection) \
 980      BFD_SEND (ibfd, _bfd_copy_private_section_data, \
 981                 (ibfd, isection, obfd, osection))
 982 enum bfd_architecture
 983 {
 984   bfd_arch_unknown,    /* File arch not known */
 985   bfd_arch_obscure,    /* Arch known, not one of these */
 986   bfd_arch_m68k,       /* Motorola 68xxx */
 987   bfd_arch_vax,        /* DEC Vax */
 988   bfd_arch_i960,       /* Intel 960 */
 989      /* The order of the following is important.
 990        lower number indicates a machine type that
 991        only accepts a subset of the instructions
 992        available to machines with higher numbers.
 993        The exception is the "ca", which is
 994        incompatible with all other machines except
 995        "core". */
 996
 997 #define bfd_mach_i960_core      1
 998 #define bfd_mach_i960_ka_sa     2
 999 #define bfd_mach_i960_kb_sb     3
1000 #define bfd_mach_i960_mc        4
1001 #define bfd_mach_i960_xa        5
1002 #define bfd_mach_i960_ca        6
1003   /* start-sanitize-i960xl */
1004 #define bfd_mach_i960_xl         7
1005   /* end-sanitize-i960xl */
1006
1007   bfd_arch_a29k,       /* AMD 29000 */
1008   bfd_arch_sparc,      /* SPARC */
1009   bfd_arch_mips,       /* MIPS Rxxxx */
1010   bfd_arch_i386,       /* Intel 386 */
1011   bfd_arch_we32k,      /* AT&T WE32xxx */
1012   bfd_arch_tahoe,      /* CCI/Harris Tahoe */
1013   bfd_arch_i860,       /* Intel 860 */
1014   bfd_arch_romp,       /* IBM ROMP PC/RT */
1015   bfd_arch_alliant,    /* Alliant */
1016   bfd_arch_convex,     /* Convex */
1017   bfd_arch_m88k,       /* Motorola 88xxx */
1018   bfd_arch_pyramid,    /* Pyramid Technology */
1019   bfd_arch_h8300,      /* Hitachi H8/300 */
1020 #define bfd_mach_h8300   1
1021 #define bfd_mach_h8300h  2
1022   bfd_arch_powerpc,    /* PowerPC */
1023   bfd_arch_rs6000,     /* IBM RS/6000 */
1024   bfd_arch_hppa,       /* HP PA RISC */
1025   bfd_arch_z8k,        /* Zilog Z8000 */
1026 #define bfd_mach_z8001          1
1027 #define bfd_mach_z8002          2
1028   bfd_arch_h8500,      /* Hitachi H8/500 */
1029   bfd_arch_sh,         /* Hitachi SH */
1030   bfd_arch_alpha,      /* Dec Alpha */
1031   bfd_arch_arm,        /* Advanced Risc Machines ARM */
1032   bfd_arch_ns32k,      /* National Semiconductors ns32000 */
1033   /* start-sanitize-rce */
1034   bfd_arch_rce,        /* Motorola RCE */
1035   /* end-sanitize-rce */
1036   /* start-sanitize-arc */
1037   bfd_arch_arc,        /* Argonaut RISC Core */
1038   /* end-sanitize-arc */
1039   bfd_arch_last
1040   };
1041
1042 typedef struct bfd_arch_info
1043 {
1044   int bits_per_word;
1045   int bits_per_address;
1046   int bits_per_byte;
1047   enum bfd_architecture arch;
1048   long mach;
1049   char *arch_name;
1050   CONST  char *printable_name;
1051   unsigned int section_align_power;
1052   /* true if this is the default machine for the architecture */
1053   boolean the_default;
1054   CONST struct bfd_arch_info * (*compatible)
1055         PARAMS ((CONST struct bfd_arch_info *a,
1056                  CONST struct bfd_arch_info *b));
1057
1058   boolean (*scan) PARAMS ((CONST struct bfd_arch_info *, CONST char *));
1059    /* How to disassemble an instruction, producing a printable
1060      representation on a specified stdio stream.  This isn't
1061      defined for most processors at present, because of the size
1062      of the additional tables it would drag in, and because gdb
1063      wants to use a different interface.  */
1064   unsigned int (*disassemble) PARAMS ((bfd_vma addr, CONST char *data,
1065                                         PTR stream));
1066
1067   struct bfd_arch_info *next;
1068 } bfd_arch_info_type;
1069 CONST char *
1070 bfd_printable_name PARAMS ((bfd *abfd));
1071
1072 bfd_arch_info_type *
1073 bfd_scan_arch PARAMS ((CONST char *string));
1074
1075 CONST bfd_arch_info_type *
1076 bfd_arch_get_compatible PARAMS ((
1077     CONST bfd *abfd,
1078     CONST bfd *bbfd));
1079
1080 void
1081 bfd_set_arch_info PARAMS ((bfd *abfd, bfd_arch_info_type *arg));
1082
1083 enum bfd_architecture
1084 bfd_get_arch PARAMS ((bfd *abfd));
1085
1086 unsigned long
1087 bfd_get_mach PARAMS ((bfd *abfd));
1088
1089 unsigned int
1090 bfd_arch_bits_per_byte PARAMS ((bfd *abfd));
1091
1092 unsigned int
1093 bfd_arch_bits_per_address PARAMS ((bfd *abfd));
1094
1095 bfd_arch_info_type *
1096 bfd_get_arch_info PARAMS ((bfd *abfd));
1097
1098 bfd_arch_info_type *
1099 bfd_lookup_arch
1100  PARAMS ((enum bfd_architecture
1101     arch,
1102     long machine));
1103
1104 CONST char *
1105 bfd_printable_arch_mach
1106  PARAMS ((enum bfd_architecture arch, unsigned long machine));
1107
1108 typedef enum bfd_reloc_status
1109 {
1110         /* No errors detected */
1111   bfd_reloc_ok,
1112
1113         /* The relocation was performed, but there was an overflow. */
1114   bfd_reloc_overflow,
1115
1116         /* The address to relocate was not within the section supplied. */
1117   bfd_reloc_outofrange,
1118
1119         /* Used by special functions */
1120   bfd_reloc_continue,
1121
1122         /* Unsupported relocation size requested. */
1123   bfd_reloc_notsupported,
1124
1125         /* Unused */
1126   bfd_reloc_other,
1127
1128         /* The symbol to relocate against was undefined. */
1129   bfd_reloc_undefined,
1130
1131         /* The relocation was performed, but may not be ok - presently
1132           generated only when linking i960 coff files with i960 b.out
1133           symbols.  If this type is returned, the error_message argument
1134           to bfd_perform_relocation will be set.  */
1135   bfd_reloc_dangerous
1136  }
1137  bfd_reloc_status_type;
1138
1139
1140 typedef struct reloc_cache_entry
1141 {
1142         /* A pointer into the canonical table of pointers  */
1143   struct symbol_cache_entry **sym_ptr_ptr;
1144
1145         /* offset in section */
1146   bfd_size_type address;
1147
1148         /* addend for relocation value */
1149   bfd_vma addend;
1150
1151         /* Pointer to how to perform the required relocation */
1152   const struct reloc_howto_struct *howto;
1153
1154 } arelent;
1155 enum complain_overflow
1156 {
1157          /* Do not complain on overflow. */
1158   complain_overflow_dont,
1159
1160          /* Complain if the bitfield overflows, whether it is considered
1161            as signed or unsigned. */
1162   complain_overflow_bitfield,
1163
1164          /* Complain if the value overflows when considered as signed
1165            number. */
1166   complain_overflow_signed,
1167
1168          /* Complain if the value overflows when considered as an
1169            unsigned number. */
1170   complain_overflow_unsigned
1171 };
1172
1173 typedef unsigned char bfd_byte;
1174 typedef const struct reloc_howto_struct reloc_howto_type;
1175
1176 struct reloc_howto_struct
1177 {
1178         /*  The type field has mainly a documetary use - the back end can
1179            do what it wants with it, though normally the back end's
1180            external idea of what a reloc number is stored
1181            in this field. For example, a PC relative word relocation
1182            in a coff environment has the type 023 - because that's
1183            what the outside world calls a R_PCRWORD reloc. */
1184   unsigned int type;
1185
1186         /*  The value the final relocation is shifted right by. This drops
1187            unwanted data from the relocation.  */
1188   unsigned int rightshift;
1189
1190          /*  The size of the item to be relocated.  This is *not* a
1191             power-of-two measure.  To get the number of bytes operated
1192             on by a type of relocation, use bfd_get_reloc_size.  */
1193   int size;
1194
1195         /*  The number of bits in the item to be relocated.  This is used
1196             when doing overflow checking.  */
1197   unsigned int bitsize;
1198
1199         /*  Notes that the relocation is relative to the location in the
1200            data section of the addend. The relocation function will
1201            subtract from the relocation value the address of the location
1202            being relocated. */
1203   boolean pc_relative;
1204
1205          /*  The bit position of the reloc value in the destination.
1206             The relocated value is left shifted by this amount. */
1207   unsigned int bitpos;
1208
1209          /* What type of overflow error should be checked for when
1210            relocating. */
1211   enum complain_overflow complain_on_overflow;
1212
1213         /* If this field is non null, then the supplied function is
1214           called rather than the normal function. This allows really
1215           strange relocation methods to be accomodated (e.g., i960 callj
1216           instructions). */
1217   bfd_reloc_status_type (*special_function)
1218                                     PARAMS ((bfd *abfd,
1219                                              arelent *reloc_entry,
1220                                             struct symbol_cache_entry *symbol,
1221                                             PTR data,
1222                                             asection *input_section,
1223                                             bfd *output_bfd,
1224                                             char **error_message));
1225
1226         /* The textual name of the relocation type. */
1227   char *name;
1228
1229         /* When performing a partial link, some formats must modify the
1230           relocations rather than the data - this flag signals this.*/
1231   boolean partial_inplace;
1232
1233         /* The src_mask selects which parts of the read in data
1234           are to be used in the relocation sum.  E.g., if this was an 8 bit
1235           bit of data which we read and relocated, this would be
1236           0x000000ff. When we have relocs which have an addend, such as
1237           sun4 extended relocs, the value in the offset part of a
1238           relocating field is garbage so we never use it. In this case
1239           the mask would be 0x00000000. */
1240   bfd_vma src_mask;
1241
1242         /* The dst_mask selects which parts of the instruction are replaced
1243           into the instruction. In most cases src_mask == dst_mask,
1244           except in the above special case, where dst_mask would be
1245           0x000000ff, and src_mask would be 0x00000000.   */
1246   bfd_vma dst_mask;
1247
1248         /* When some formats create PC relative instructions, they leave
1249           the value of the pc of the place being relocated in the offset
1250           slot of the instruction, so that a PC relative relocation can
1251           be made just by adding in an ordinary offset (e.g., sun3 a.out).
1252           Some formats leave the displacement part of an instruction
1253           empty (e.g., m88k bcs); this flag signals the fact.*/
1254   boolean pcrel_offset;
1255
1256 };
1257 #define HOWTO(C, R,S,B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
1258   {(unsigned)C,R,S,B, P, BI, O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC}
1259 #define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,complain_overflow_dont,FUNCTION, NAME,false,0,0,IN)
1260
1261 #define HOWTO_PREPARE(relocation, symbol)      \
1262   {                                            \
1263   if (symbol != (asymbol *)NULL) {             \
1264     if (bfd_is_com_section (symbol->section)) { \
1265       relocation = 0;                          \
1266     }                                          \
1267     else {                                     \
1268       relocation = symbol->value;              \
1269     }                                          \
1270   }                                            \
1271 }
1272 int
1273 bfd_get_reloc_size  PARAMS ((reloc_howto_type *));
1274
1275 typedef struct relent_chain {
1276   arelent relent;
1277   struct   relent_chain *next;
1278 } arelent_chain;
1279 bfd_reloc_status_type
1280
1281 bfd_perform_relocation
1282  PARAMS ((bfd *abfd,
1283     arelent *reloc_entry,
1284     PTR data,
1285     asection *input_section,
1286     bfd *output_bfd,
1287     char **error_message));
1288
1289 bfd_reloc_status_type
1290
1291 bfd_install_relocation
1292  PARAMS ((bfd *abfd,
1293     arelent *reloc_entry,
1294     PTR data, bfd_vma data_start,
1295     asection *input_section,
1296     char **error_message));
1297
1298 enum bfd_reloc_code_real {
1299   _dummy_first_bfd_reloc_code_real,
1300
1301
1302 /* Basic absolute relocations of N bits. */
1303   BFD_RELOC_64,
1304   BFD_RELOC_32,
1305   BFD_RELOC_26,
1306   BFD_RELOC_16,
1307   BFD_RELOC_14,
1308   BFD_RELOC_8,
1309
1310 /* PC-relative relocations.  Sometimes these are relative to the address
1311 of the relocation itself; sometimes they are relative to the start of
1312 the section containing the relocation.  It depends on the specific target.
1313
1314 The 24-bit relocation is used in some Intel 960 configurations. */
1315   BFD_RELOC_64_PCREL,
1316   BFD_RELOC_32_PCREL,
1317   BFD_RELOC_24_PCREL,
1318   BFD_RELOC_16_PCREL,
1319   BFD_RELOC_12_PCREL,
1320   BFD_RELOC_8_PCREL,
1321
1322 /* Linkage-table relative. */
1323   BFD_RELOC_32_BASEREL,
1324   BFD_RELOC_16_BASEREL,
1325   BFD_RELOC_8_BASEREL,
1326
1327 /* Absolute 8-bit relocation, but used to form an address like 0xFFnn. */
1328   BFD_RELOC_8_FFnn,
1329
1330 /* These PC-relative relocations are stored as word displacements --
1331 i.e., byte displacements shifted right two bits.  The 30-bit word
1332 displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the
1333 SPARC.  (SPARC tools generally refer to this as <<WDISP30>>.)  The
1334 signed 16-bit displacement is used on the MIPS, and the 23-bit
1335 displacement is used on the Alpha. */
1336   BFD_RELOC_32_PCREL_S2,
1337   BFD_RELOC_16_PCREL_S2,
1338   BFD_RELOC_23_PCREL_S2,
1339
1340 /* High 22 bits and low 10 bits of 32-bit value, placed into lower bits of
1341 the target word.  These are used on the SPARC. */
1342   BFD_RELOC_HI22,
1343   BFD_RELOC_LO10,
1344
1345 /* For systems that allocate a Global Pointer register, these are
1346 displacements off that register.  These relocation types are
1347 handled specially, because the value the register will have is
1348 decided relatively late. */
1349   BFD_RELOC_GPREL16,
1350   BFD_RELOC_GPREL32,
1351
1352 /* Reloc types used for i960/b.out. */
1353   BFD_RELOC_I960_CALLJ,
1354
1355 /* SPARC ELF relocations.  There is probably some overlap with other
1356 relocation types already defined. */
1357   BFD_RELOC_NONE,
1358   BFD_RELOC_SPARC_WDISP22,
1359   BFD_RELOC_SPARC22,
1360   BFD_RELOC_SPARC13,
1361   BFD_RELOC_SPARC_GOT10,
1362   BFD_RELOC_SPARC_GOT13,
1363   BFD_RELOC_SPARC_GOT22,
1364   BFD_RELOC_SPARC_PC10,
1365   BFD_RELOC_SPARC_PC22,
1366   BFD_RELOC_SPARC_WPLT30,
1367   BFD_RELOC_SPARC_COPY,
1368   BFD_RELOC_SPARC_GLOB_DAT,
1369   BFD_RELOC_SPARC_JMP_SLOT,
1370   BFD_RELOC_SPARC_RELATIVE,
1371   BFD_RELOC_SPARC_UA32,
1372
1373 /* I think these are specific to SPARC a.out (e.g., Sun 4). */
1374   BFD_RELOC_SPARC_BASE13,
1375   BFD_RELOC_SPARC_BASE22,
1376
1377 /* Some relocations we're using for SPARC V9 -- subject to change. */
1378 #define BFD_RELOC_SPARC_64 BFD_RELOC_64
1379   BFD_RELOC_SPARC_10,
1380   BFD_RELOC_SPARC_11,
1381   BFD_RELOC_SPARC_OLO10,
1382   BFD_RELOC_SPARC_HH22,
1383   BFD_RELOC_SPARC_HM10,
1384   BFD_RELOC_SPARC_LM22,
1385   BFD_RELOC_SPARC_PC_HH22,
1386   BFD_RELOC_SPARC_PC_HM10,
1387   BFD_RELOC_SPARC_PC_LM22,
1388   BFD_RELOC_SPARC_WDISP16,
1389   BFD_RELOC_SPARC_WDISP19,
1390   BFD_RELOC_SPARC_GLOB_JMP,
1391   BFD_RELOC_SPARC_LO7,
1392
1393 /* Alpha ECOFF relocations.  Some of these treat the symbol or "addend"
1394 in some special way.
1395 For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1396 writing; when reading, it will be the absolute section symbol.  The
1397 addend is the displacement in bytes of the "lda" instruction from
1398 the "ldah" instruction (which is at the address of this reloc). */
1399   BFD_RELOC_ALPHA_GPDISP_HI16,
1400
1401 /* For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1402 with GPDISP_HI16 relocs.  The addend is ignored when writing the
1403 relocations out, and is filled in with the file's GP value on
1404 reading, for convenience. */
1405   BFD_RELOC_ALPHA_GPDISP_LO16,
1406
1407 /* The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1408 the assembler turns it into a LDQ instruction to load the address of
1409 the symbol, and then fills in a register in the real instruction.
1410
1411 The LITERAL reloc, at the LDQ instruction, refers to the .lita
1412 section symbol.  The addend is ignored when writing, but is filled
1413 in with the file's GP value on reading, for convenience, as with the
1414 GPDISP_LO16 reloc.
1415
1416 The LITUSE reloc, on the instruction using the loaded address, gives
1417 information to the linker that it might be able to use to optimize
1418 away some literal section references.  The symbol is ignored (read
1419 as the absolute section symbol), and the "addend" indicates the type
1420 of instruction using the register:
1421 1 - "memory" fmt insn
1422 2 - byte-manipulation (byte offset reg)
1423 3 - jsr (target of branch)
1424
1425 The GNU linker currently doesn't do any of this optimizing. */
1426   BFD_RELOC_ALPHA_LITERAL,
1427   BFD_RELOC_ALPHA_LITUSE,
1428
1429 /* The HINT relocation indicates a value that should be filled into the
1430 "hint" field of a jmp/jsr/ret instruction, for possible branch-
1431 prediction logic which may be provided on some processors. */
1432   BFD_RELOC_ALPHA_HINT,
1433
1434 /* Bits 27..2 of the relocation address shifted right 2 bits;
1435 simple reloc otherwise. */
1436   BFD_RELOC_MIPS_JMP,
1437
1438 /* High 16 bits of 32-bit value; simple reloc. */
1439   BFD_RELOC_HI16,
1440
1441 /* High 16 bits of 32-bit value but the low 16 bits will be sign
1442 extended and added to form the final result.  If the low 16
1443 bits form a negative number, we need to add one to the high value
1444 to compensate for the borrow when the low bits are added. */
1445   BFD_RELOC_HI16_S,
1446
1447 /* Low 16 bits. */
1448   BFD_RELOC_LO16,
1449
1450 /* Like BFD_RELOC_HI16_S, but PC relative. */
1451   BFD_RELOC_PCREL_HI16_S,
1452
1453 /* Like BFD_RELOC_LO16, but PC relative. */
1454   BFD_RELOC_PCREL_LO16,
1455
1456 /* Relocation relative to the global pointer. */
1457 #define BFD_RELOC_MIPS_GPREL BFD_RELOC_GPREL16
1458
1459 /* Relocation against a MIPS literal section. */
1460   BFD_RELOC_MIPS_LITERAL,
1461
1462 /* MIPS ELF relocations. */
1463   BFD_RELOC_MIPS_GOT16,
1464   BFD_RELOC_MIPS_CALL16,
1465 #define BFD_RELOC_MIPS_GPREL32 BFD_RELOC_GPREL32
1466
1467 /* i386/elf relocations */
1468   BFD_RELOC_386_GOT32,
1469   BFD_RELOC_386_PLT32,
1470   BFD_RELOC_386_COPY,
1471   BFD_RELOC_386_GLOB_DAT,
1472   BFD_RELOC_386_JUMP_SLOT,
1473   BFD_RELOC_386_RELATIVE,
1474   BFD_RELOC_386_GOTOFF,
1475   BFD_RELOC_386_GOTPC,
1476
1477 /* ns32k relocations */
1478   BFD_RELOC_NS32K_IMM_8,
1479   BFD_RELOC_NS32K_IMM_16,
1480   BFD_RELOC_NS32K_IMM_32,
1481   BFD_RELOC_NS32K_IMM_8_PCREL,
1482   BFD_RELOC_NS32K_IMM_16_PCREL,
1483   BFD_RELOC_NS32K_IMM_32_PCREL,
1484   BFD_RELOC_NS32K_DISP_8,
1485   BFD_RELOC_NS32K_DISP_16,
1486   BFD_RELOC_NS32K_DISP_32,
1487   BFD_RELOC_NS32K_DISP_8_PCREL,
1488   BFD_RELOC_NS32K_DISP_16_PCREL,
1489   BFD_RELOC_NS32K_DISP_32_PCREL,
1490
1491 /* PowerPC/POWER (RS/6000) relocs.
1492 26 bit relative branch.  Low two bits must be zero.  High 24
1493 bits installed in bits 6 through 29 of instruction. */
1494   BFD_RELOC_PPC_B26,
1495
1496 /* 26 bit absolute branch, like BFD_RELOC_PPC_B26 but absolute. */
1497   BFD_RELOC_PPC_BA26,
1498
1499 /* 16 bit TOC relative reference. */
1500   BFD_RELOC_PPC_TOC16,
1501
1502 /* The type of reloc used to build a contructor table - at the moment
1503 probably a 32 bit wide absolute relocation, but the target can choose.
1504 It generally does map to one of the other relocation types. */
1505   BFD_RELOC_CTOR,
1506
1507 /* ARM 26 bit pc-relative branch.  The lowest two bits must be zero and are
1508 not stored in the instruction. */
1509   BFD_RELOC_ARM_PCREL_BRANCH,
1510
1511 /* These relocs are only used within the ARM assembler.  They are not
1512 (at present) written to any object files. */
1513   BFD_RELOC_ARM_IMMEDIATE,
1514   BFD_RELOC_ARM_OFFSET_IMM,
1515   BFD_RELOC_ARM_SHIFT_IMM,
1516   BFD_RELOC_ARM_SWI,
1517   BFD_RELOC_ARM_MULTI,
1518   BFD_RELOC_ARM_CP_OFF_IMM,
1519 /* start-sanitize-arc */
1520
1521 /* Argonaut RISC Core (ARC) relocs.
1522 ARC 22 bit pc-relative branch.  The lowest two bits must be zero and are
1523 not stored in the instruction.  High 20 bits installed in bits 7 through 26
1524 of instruction. */
1525   BFD_RELOC_ARC_B22_PCREL,
1526 /* end-sanitize-arc */
1527
1528   BFD_RELOC_UNUSED };
1529 typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
1530 const struct reloc_howto_struct *
1531
1532 bfd_reloc_type_lookup  PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
1533
1534 const char *
1535 bfd_get_reloc_code_name  PARAMS ((bfd_reloc_code_real_type code));
1536
1537
1538 typedef struct symbol_cache_entry
1539 {
1540          /* A pointer to the BFD which owns the symbol. This information
1541            is necessary so that a back end can work out what additional
1542            information (invisible to the application writer) is carried
1543            with the symbol.
1544
1545            This field is *almost* redundant, since you can use section->owner
1546            instead, except that some symbols point to the global sections
1547            bfd_{abs,com,und}_section.  This could be fixed by making
1548            these globals be per-bfd (or per-target-flavor).  FIXME. */
1549
1550   struct _bfd *the_bfd;  /* Use bfd_asymbol_bfd(sym) to access this field. */
1551
1552          /* The text of the symbol. The name is left alone, and not copied; the
1553            application may not alter it. */
1554   CONST char *name;
1555
1556          /* The value of the symbol.  This really should be a union of a
1557           numeric value with a pointer, since some flags indicate that
1558           a pointer to another symbol is stored here.  */
1559   symvalue value;
1560
1561          /* Attributes of a symbol: */
1562
1563 #define BSF_NO_FLAGS    0x00
1564
1565          /* The symbol has local scope; <<static>> in <<C>>. The value
1566            is the offset into the section of the data. */
1567 #define BSF_LOCAL       0x01
1568
1569          /* The symbol has global scope; initialized data in <<C>>. The
1570            value is the offset into the section of the data. */
1571 #define BSF_GLOBAL      0x02
1572
1573          /* The symbol has global scope and is exported. The value is
1574            the offset into the section of the data. */
1575 #define BSF_EXPORT      BSF_GLOBAL  /* no real difference */
1576
1577          /* A normal C symbol would be one of:
1578            <<BSF_LOCAL>>, <<BSF_FORT_COMM>>,  <<BSF_UNDEFINED>> or
1579            <<BSF_GLOBAL>> */
1580
1581          /* The symbol is a debugging record. The value has an arbitary
1582            meaning. */
1583 #define BSF_DEBUGGING   0x08
1584
1585          /* The symbol denotes a function entry point.  Used in ELF,
1586            perhaps others someday.  */
1587 #define BSF_FUNCTION    0x10
1588
1589          /* Used by the linker. */
1590 #define BSF_KEEP        0x20
1591 #define BSF_KEEP_G      0x40
1592
1593          /* A weak global symbol, overridable without warnings by
1594            a regular global symbol of the same name.  */
1595 #define BSF_WEAK        0x80
1596
1597         /* This symbol was created to point to a section, e.g. ELF's
1598            STT_SECTION symbols.  */
1599 #define BSF_SECTION_SYM 0x100
1600
1601          /* The symbol used to be a common symbol, but now it is
1602            allocated. */
1603 #define BSF_OLD_COMMON  0x200
1604
1605          /* The default value for common data. */
1606 #define BFD_FORT_COMM_DEFAULT_VALUE 0
1607
1608          /* In some files the type of a symbol sometimes alters its
1609            location in an output file - ie in coff a <<ISFCN>> symbol
1610            which is also <<C_EXT>> symbol appears where it was
1611            declared and not at the end of a section.  This bit is set
1612            by the target BFD part to convey this information. */
1613
1614 #define BSF_NOT_AT_END    0x400
1615
1616          /* Signal that the symbol is the label of constructor section. */
1617 #define BSF_CONSTRUCTOR   0x800
1618
1619          /* Signal that the symbol is a warning symbol. If the symbol
1620            is a warning symbol, then the value field (I know this is
1621            tacky) will point to the asymbol which when referenced will
1622            cause the warning. */
1623 #define BSF_WARNING       0x1000
1624
1625          /* Signal that the symbol is indirect. The value of the symbol
1626            is a pointer to an undefined asymbol which contains the
1627            name to use instead. */
1628 #define BSF_INDIRECT      0x2000
1629
1630          /* BSF_FILE marks symbols that contain a file name.  This is used
1631            for ELF STT_FILE symbols.  */
1632 #define BSF_FILE          0x4000
1633
1634          /* Symbol is from dynamic linking information.  */
1635 #define BSF_DYNAMIC        0x8000
1636
1637   flagword flags;
1638
1639          /* A pointer to the section to which this symbol is
1640            relative.  This will always be non NULL, there are special
1641           sections for undefined and absolute symbols.  */
1642   struct sec *section;
1643
1644          /* Back end special data.  */
1645   union
1646     {
1647       PTR p;
1648       bfd_vma i;
1649     } udata;
1650
1651 } asymbol;
1652 #define bfd_get_symtab_upper_bound(abfd) \
1653      BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd))
1654 boolean
1655 bfd_is_local_label PARAMS ((bfd *abfd, asymbol *sym));
1656
1657 #define bfd_is_local_label(abfd, sym) \
1658      BFD_SEND (abfd, _bfd_is_local_label,(abfd, sym))
1659 #define bfd_canonicalize_symtab(abfd, location) \
1660      BFD_SEND (abfd, _bfd_canonicalize_symtab,\
1661                   (abfd, location))
1662 boolean
1663 bfd_set_symtab  PARAMS ((bfd *abfd, asymbol **location, unsigned int count));
1664
1665 void
1666 bfd_print_symbol_vandf PARAMS ((PTR file, asymbol *symbol));
1667
1668 #define bfd_make_empty_symbol(abfd) \
1669      BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
1670 #define bfd_make_debug_symbol(abfd,ptr,size) \
1671         BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
1672 int
1673 bfd_decode_symclass PARAMS ((asymbol *symbol));
1674
1675 void
1676 bfd_symbol_info PARAMS ((asymbol *symbol, symbol_info *ret));
1677
1678 struct _bfd
1679 {
1680      /* The filename the application opened the BFD with.  */
1681     CONST char *filename;
1682
1683      /* A pointer to the target jump table.             */
1684     const struct bfd_target *xvec;
1685
1686      /* To avoid dragging too many header files into every file that
1687        includes `<<bfd.h>>', IOSTREAM has been declared as a "char
1688        *", and MTIME as a "long".  Their correct types, to which they
1689        are cast when used, are "FILE *" and "time_t".    The iostream
1690        is the result of an fopen on the filename. */
1691     char *iostream;
1692
1693      /* Is the file descriptor being cached?  That is, can it be closed as
1694        needed, and re-opened when accessed later?  */
1695
1696     boolean cacheable;
1697
1698      /* Marks whether there was a default target specified when the
1699        BFD was opened. This is used to select which matching algorithm
1700        to use to choose the back end. */
1701
1702     boolean target_defaulted;
1703
1704      /* The caching routines use these to maintain a
1705        least-recently-used list of BFDs */
1706
1707     struct _bfd *lru_prev, *lru_next;
1708
1709      /* When a file is closed by the caching routines, BFD retains
1710        state information on the file here: */
1711
1712     file_ptr where;
1713
1714      /* and here: (``once'' means at least once) */
1715
1716     boolean opened_once;
1717
1718      /* Set if we have a locally maintained mtime value, rather than
1719        getting it from the file each time: */
1720
1721     boolean mtime_set;
1722
1723      /* File modified time, if mtime_set is true: */
1724
1725     long mtime;
1726
1727      /* Reserved for an unimplemented file locking extension.*/
1728
1729     int ifd;
1730
1731      /* The format which belongs to the BFD. (object, core, etc.) */
1732
1733     bfd_format format;
1734
1735      /* The direction the BFD was opened with*/
1736
1737     enum bfd_direction {no_direction = 0,
1738                         read_direction = 1,
1739                         write_direction = 2,
1740                         both_direction = 3} direction;
1741
1742      /* Format_specific flags*/
1743
1744     flagword flags;
1745
1746      /* Currently my_archive is tested before adding origin to
1747        anything. I believe that this can become always an add of
1748        origin, with origin set to 0 for non archive files.   */
1749
1750     file_ptr origin;
1751
1752      /* Remember when output has begun, to stop strange things
1753        from happening. */
1754     boolean output_has_begun;
1755
1756      /* Pointer to linked list of sections*/
1757     struct sec  *sections;
1758
1759      /* The number of sections */
1760     unsigned int section_count;
1761
1762      /* Stuff only useful for object files:
1763        The start address. */
1764     bfd_vma start_address;
1765
1766      /* Used for input and output*/
1767     unsigned int symcount;
1768
1769      /* Symbol table for output BFD (with symcount entries) */
1770     struct symbol_cache_entry  **outsymbols;
1771
1772      /* Pointer to structure which contains architecture information*/
1773     struct bfd_arch_info *arch_info;
1774
1775      /* Stuff only useful for archives:*/
1776     PTR arelt_data;
1777     struct _bfd *my_archive;      /* The containing archive BFD.  */
1778     struct _bfd *next;            /* The next BFD in the archive.  */
1779     struct _bfd *archive_head;    /* The first BFD in the archive.  */
1780     boolean has_armap;
1781
1782      /* A chain of BFD structures involved in a link.  */
1783     struct _bfd *link_next;
1784
1785      /* A field used by _bfd_generic_link_add_archive_symbols.  This will
1786        be used only for archive elements.  */
1787     int archive_pass;
1788
1789      /* Used by the back end to hold private data. */
1790
1791     union
1792       {
1793       struct aout_data_struct *aout_data;
1794       struct artdata *aout_ar_data;
1795       struct _oasys_data *oasys_obj_data;
1796       struct _oasys_ar_data *oasys_ar_data;
1797       struct coff_tdata *coff_obj_data;
1798       struct ecoff_tdata *ecoff_obj_data;
1799       struct ieee_data_struct *ieee_data;
1800       struct ieee_ar_data_struct *ieee_ar_data;
1801       struct srec_data_struct *srec_data;
1802       struct tekhex_data_struct *tekhex_data;
1803       struct elf_obj_tdata *elf_obj_data;
1804       struct nlm_obj_tdata *nlm_obj_data;
1805       struct bout_data_struct *bout_data;
1806       struct sun_core_struct *sun_core_data;
1807       struct trad_core_struct *trad_core_data;
1808       struct som_data_struct *som_data;
1809       struct hpux_core_struct *hpux_core_data;
1810       struct hppabsd_core_struct *hppabsd_core_data;
1811       struct sgi_core_struct *sgi_core_data;
1812       struct lynx_core_struct *lynx_core_data;
1813       struct osf_core_struct *osf_core_data;
1814       struct cisco_core_struct *cisco_core_data;
1815       PTR any;
1816       } tdata;
1817
1818      /* Used by the application to hold private data*/
1819     PTR usrdata;
1820
1821      /* Where all the allocated stuff under this BFD goes */
1822     struct obstack memory;
1823 };
1824
1825 typedef enum bfd_error
1826 {
1827   bfd_error_no_error = 0,
1828   bfd_error_system_call,
1829   bfd_error_invalid_target,
1830   bfd_error_wrong_format,
1831   bfd_error_invalid_operation,
1832   bfd_error_no_memory,
1833   bfd_error_no_symbols,
1834   bfd_error_no_more_archived_files,
1835   bfd_error_malformed_archive,
1836   bfd_error_file_not_recognized,
1837   bfd_error_file_ambiguously_recognized,
1838   bfd_error_no_contents,
1839   bfd_error_nonrepresentable_section,
1840   bfd_error_no_debug_section,
1841   bfd_error_bad_value,
1842   bfd_error_file_truncated,
1843   bfd_error_invalid_error_code
1844 } bfd_error_type;
1845
1846 bfd_error_type
1847 bfd_get_error  PARAMS ((void));
1848
1849 void
1850 bfd_set_error  PARAMS ((bfd_error_type error_tag));
1851
1852 CONST char *
1853 bfd_errmsg  PARAMS ((bfd_error_type error_tag));
1854
1855 void
1856 bfd_perror  PARAMS ((CONST char *message));
1857
1858 long
1859 bfd_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
1860
1861 long
1862 bfd_canonicalize_reloc
1863  PARAMS ((bfd *abfd,
1864     asection *sec,
1865     arelent **loc,
1866     asymbol     **syms));
1867
1868 void
1869 bfd_set_reloc
1870  PARAMS ((bfd *abfd, asection *sec, arelent **rel, unsigned int count)
1871
1872     );
1873
1874 boolean
1875 bfd_set_file_flags PARAMS ((bfd *abfd, flagword flags));
1876
1877 boolean
1878 bfd_set_start_address PARAMS ((bfd *abfd, bfd_vma vma));
1879
1880 long
1881 bfd_get_mtime PARAMS ((bfd *abfd));
1882
1883 long
1884 bfd_get_size PARAMS ((bfd *abfd));
1885
1886 int
1887 bfd_get_gp_size PARAMS ((bfd *abfd));
1888
1889 void
1890 bfd_set_gp_size PARAMS ((bfd *abfd, int i));
1891
1892 bfd_vma
1893 bfd_scan_vma PARAMS ((CONST char *string, CONST char **end, int base));
1894
1895 boolean
1896 bfd_copy_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
1897
1898 #define bfd_copy_private_bfd_data(ibfd, obfd) \
1899      BFD_SEND (ibfd, _bfd_copy_private_bfd_data, \
1900                 (ibfd, obfd))
1901 #define bfd_sizeof_headers(abfd, reloc) \
1902      BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
1903
1904 #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
1905      BFD_SEND (abfd, _bfd_find_nearest_line,  (abfd, sec, syms, off, file, func, line))
1906
1907         /* Do these three do anything useful at all, for any back end?  */
1908 #define bfd_debug_info_start(abfd) \
1909         BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
1910
1911 #define bfd_debug_info_end(abfd) \
1912         BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
1913
1914 #define bfd_debug_info_accumulate(abfd, section) \
1915         BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
1916
1917
1918 #define bfd_stat_arch_elt(abfd, stat) \
1919         BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
1920
1921 #define bfd_update_armap_timestamp(abfd) \
1922         BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
1923
1924 #define bfd_set_arch_mach(abfd, arch, mach)\
1925         BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
1926
1927 #define bfd_get_relocated_section_contents(abfd, link_info, link_order, data, relocateable, symbols) \
1928         BFD_SEND (abfd, _bfd_get_relocated_section_contents, \
1929                  (abfd, link_info, link_order, data, relocateable, symbols))
1930
1931 #define bfd_relax_section(abfd, section, link_info, again) \
1932        BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
1933
1934 #define bfd_link_hash_table_create(abfd) \
1935         BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
1936
1937 #define bfd_link_add_symbols(abfd, info) \
1938         BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
1939
1940 #define bfd_final_link(abfd, info) \
1941         BFD_SEND (abfd, _bfd_final_link, (abfd, info))
1942
1943 #define bfd_free_cached_info(abfd) \
1944        BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
1945
1946 #define bfd_get_dynamic_symtab_upper_bound(abfd) \
1947         BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
1948
1949 #define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
1950         BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
1951
1952 #define bfd_get_dynamic_reloc_upper_bound(abfd) \
1953         BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
1954
1955 #define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
1956         BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
1957
1958 symindex
1959 bfd_get_next_mapent PARAMS ((bfd *abfd, symindex previous, carsym **sym));
1960
1961 boolean
1962 bfd_set_archive_head PARAMS ((bfd *output, bfd *new_head));
1963
1964 bfd *
1965 bfd_get_elt_at_index PARAMS ((bfd *archive, int index));
1966
1967 bfd *
1968 bfd_openr_next_archived_file PARAMS ((bfd *archive, bfd *previous));
1969
1970 CONST char *
1971 bfd_core_file_failing_command PARAMS ((bfd *abfd));
1972
1973 int
1974 bfd_core_file_failing_signal PARAMS ((bfd *abfd));
1975
1976 boolean
1977 core_file_matches_executable_p
1978  PARAMS ((bfd *core_bfd, bfd *exec_bfd));
1979
1980 #define BFD_SEND(bfd, message, arglist) \
1981                ((*((bfd)->xvec->message)) arglist)
1982
1983 #ifdef DEBUG_BFD_SEND
1984 #undef BFD_SEND
1985 #define BFD_SEND(bfd, message, arglist) \
1986   (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
1987     ((*((bfd)->xvec->message)) arglist) : \
1988     (bfd_assert (__FILE__,__LINE__), NULL))
1989 #endif
1990 #define BFD_SEND_FMT(bfd, message, arglist) \
1991             (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
1992
1993 #ifdef DEBUG_BFD_SEND
1994 #undef BFD_SEND_FMT
1995 #define BFD_SEND_FMT(bfd, message, arglist) \
1996   (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
1997    (((bfd)->xvec->message[(int)((bfd)->format)]) arglist) : \
1998    (bfd_assert (__FILE__,__LINE__), NULL))
1999 #endif
2000 enum bfd_flavour {
2001   bfd_target_unknown_flavour,
2002   bfd_target_aout_flavour,
2003   bfd_target_coff_flavour,
2004   bfd_target_ecoff_flavour,
2005   bfd_target_elf_flavour,
2006   bfd_target_ieee_flavour,
2007   bfd_target_nlm_flavour,
2008   bfd_target_oasys_flavour,
2009   bfd_target_tekhex_flavour,
2010   bfd_target_srec_flavour,
2011   bfd_target_som_flavour,
2012   bfd_target_os9k_flavour};
2013
2014  /* Forward declaration.  */
2015 typedef struct bfd_link_info _bfd_link_info;
2016
2017 typedef struct bfd_target
2018 {
2019   char *name;
2020   enum bfd_flavour flavour;
2021   boolean byteorder_big_p;
2022   boolean header_byteorder_big_p;
2023   flagword object_flags;
2024   flagword section_flags;
2025   char symbol_leading_char;
2026   char ar_pad_char;
2027   unsigned short ar_max_namelen;
2028   unsigned int align_power_min;
2029   bfd_vma      (*bfd_getx64) PARAMS ((const bfd_byte *));
2030   bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *));
2031   void         (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
2032   bfd_vma      (*bfd_getx32) PARAMS ((const bfd_byte *));
2033   bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *));
2034   void         (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
2035   bfd_vma      (*bfd_getx16) PARAMS ((const bfd_byte *));
2036   bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *));
2037   void         (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
2038   bfd_vma      (*bfd_h_getx64) PARAMS ((const bfd_byte *));
2039   bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *));
2040   void         (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
2041   bfd_vma      (*bfd_h_getx32) PARAMS ((const bfd_byte *));
2042   bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *));
2043   void         (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
2044   bfd_vma      (*bfd_h_getx16) PARAMS ((const bfd_byte *));
2045   bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *));
2046   void         (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
2047   const struct bfd_target *(*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
2048   boolean             (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
2049   boolean             (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
2050
2051    /* Generic entry points.  */
2052 #define BFD_JUMP_TABLE_GENERIC(NAME)\
2053 CAT(NAME,_close_and_cleanup),\
2054 CAT(NAME,_bfd_free_cached_info),\
2055 CAT(NAME,_new_section_hook),\
2056 CAT(NAME,_get_section_contents)
2057    /* Called when the BFD is being closed to do any necessary cleanup.  */
2058   boolean       (*_close_and_cleanup) PARAMS ((bfd *));
2059    /* Ask the BFD to free all cached information.  */
2060   boolean (*_bfd_free_cached_info) PARAMS ((bfd *));
2061    /* Called when a new section is created.  */
2062   boolean       (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
2063    /* Read the contents of a section.  */
2064   boolean       (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
2065                                             file_ptr, bfd_size_type));
2066
2067    /* Entry points to copy private data.  */
2068 #define BFD_JUMP_TABLE_COPY(NAME)\
2069 CAT(NAME,_bfd_copy_private_bfd_data),\
2070 CAT(NAME,_bfd_copy_private_section_data)
2071    /* Called to copy BFD general private data from one object file
2072      to another.  */
2073   boolean        (*_bfd_copy_private_bfd_data) PARAMS ((bfd *, bfd *));
2074    /* Called to copy BFD private section data from one object file
2075      to another.  */
2076   boolean       (*_bfd_copy_private_section_data) PARAMS ((bfd *, sec_ptr,
2077                                                        bfd *, sec_ptr));
2078
2079    /* Core file entry points.  */
2080 #define BFD_JUMP_TABLE_CORE(NAME)\
2081 CAT(NAME,_core_file_failing_command),\
2082 CAT(NAME,_core_file_failing_signal),\
2083 CAT(NAME,_core_file_matches_executable_p)
2084   char *   (*_core_file_failing_command) PARAMS ((bfd *));
2085   int      (*_core_file_failing_signal) PARAMS ((bfd *));
2086   boolean  (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
2087
2088    /* Archive entry points.  */
2089 #define BFD_JUMP_TABLE_ARCHIVE(NAME)\
2090 CAT(NAME,_slurp_armap),\
2091 CAT(NAME,_slurp_extended_name_table),\
2092 CAT(NAME,_construct_extended_name_table),\
2093 CAT(NAME,_truncate_arname),\
2094 CAT(NAME,_write_armap),\
2095 CAT(NAME,_openr_next_archived_file),\
2096 CAT(NAME,_generic_stat_arch_elt),\
2097 CAT(NAME,_update_armap_timestamp)
2098   boolean  (*_bfd_slurp_armap) PARAMS ((bfd *));
2099   boolean  (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
2100   boolean  (*_bfd_construct_extended_name_table)
2101              PARAMS ((bfd *, char **, bfd_size_type *, const char **));
2102   void     (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
2103   boolean  (*write_armap) PARAMS ((bfd *arch,
2104                               unsigned int elength,
2105                               struct orl *map,
2106                               unsigned int orl_count,
2107                               int stridx));
2108   bfd *    (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
2109   int      (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
2110   boolean  (*_bfd_update_armap_timestamp) PARAMS ((bfd *));
2111
2112    /* Entry points used for symbols.  */
2113 #define BFD_JUMP_TABLE_SYMBOLS(NAME)\
2114 CAT(NAME,_get_symtab_upper_bound),\
2115 CAT(NAME,_get_symtab),\
2116 CAT(NAME,_make_empty_symbol),\
2117 CAT(NAME,_print_symbol),\
2118 CAT(NAME,_get_symbol_info),\
2119 CAT(NAME,_bfd_is_local_label),\
2120 CAT(NAME,_get_lineno),\
2121 CAT(NAME,_find_nearest_line),\
2122 CAT(NAME,_bfd_make_debug_symbol)
2123   long  (*_bfd_get_symtab_upper_bound) PARAMS ((bfd *));
2124   long  (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
2125                                              struct symbol_cache_entry **));
2126   struct symbol_cache_entry  *
2127                 (*_bfd_make_empty_symbol) PARAMS ((bfd *));
2128   void          (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
2129                                       struct symbol_cache_entry *,
2130                                       bfd_print_symbol_type));
2131 #define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
2132   void          (*_bfd_get_symbol_info) PARAMS ((bfd *,
2133                                       struct symbol_cache_entry *,
2134                                       symbol_info *));
2135 #define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
2136   boolean        (*_bfd_is_local_label) PARAMS ((bfd *, asymbol *));
2137
2138   alent *    (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
2139   boolean    (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
2140                     struct sec *section, struct symbol_cache_entry **symbols,
2141                     bfd_vma offset, CONST char **file, CONST char **func,
2142                     unsigned int *line));
2143   /* Back-door to allow format-aware applications to create debug symbols
2144     while using BFD for everything else.  Currently used by the assembler
2145     when creating COFF files.  */
2146  asymbol *  (*_bfd_make_debug_symbol) PARAMS ((
2147        bfd *abfd,
2148        void *ptr,
2149        unsigned long size));
2150
2151    /* Routines for relocs.  */
2152 #define BFD_JUMP_TABLE_RELOCS(NAME)\
2153 CAT(NAME,_get_reloc_upper_bound),\
2154 CAT(NAME,_canonicalize_reloc),\
2155 CAT(NAME,_bfd_reloc_type_lookup)
2156   long  (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
2157   long  (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
2158                                             struct symbol_cache_entry **));
2159    /* See documentation on reloc types.  */
2160   CONST struct reloc_howto_struct *
2161        (*reloc_type_lookup) PARAMS ((bfd *abfd,
2162                                      bfd_reloc_code_real_type code));
2163
2164    /* Routines used when writing an object file.  */
2165 #define BFD_JUMP_TABLE_WRITE(NAME)\
2166 CAT(NAME,_set_arch_mach),\
2167 CAT(NAME,_set_section_contents)
2168   boolean    (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
2169                     unsigned long));
2170   boolean       (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
2171                                             file_ptr, bfd_size_type));
2172
2173    /* Routines used by the linker.  */
2174 #define BFD_JUMP_TABLE_LINK(NAME)\
2175 CAT(NAME,_sizeof_headers),\
2176 CAT(NAME,_bfd_get_relocated_section_contents),\
2177 CAT(NAME,_bfd_relax_section),\
2178 CAT(NAME,_bfd_link_hash_table_create),\
2179 CAT(NAME,_bfd_link_add_symbols),\
2180 CAT(NAME,_bfd_final_link)
2181   int        (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
2182   bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
2183                     struct bfd_link_info *, struct bfd_link_order *,
2184                     bfd_byte *data, boolean relocateable,
2185                     struct symbol_cache_entry **));
2186
2187   boolean    (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
2188                     struct bfd_link_info *, boolean *again));
2189
2190    /* Create a hash table for the linker.  Different backends store
2191      different information in this table.  */
2192   struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *));
2193
2194    /* Add symbols from this object file into the hash table.  */
2195   boolean (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
2196
2197    /* Do a link based on the link_order structures attached to each
2198      section of the BFD.  */
2199   boolean (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *));
2200
2201   /* Routines to handle dynamic symbols and relocs.  */
2202 #define BFD_JUMP_TABLE_DYNAMIC(NAME)\
2203 CAT(NAME,_get_dynamic_symtab_upper_bound),\
2204 CAT(NAME,_canonicalize_dynamic_symtab),\
2205 CAT(NAME,_get_dynamic_reloc_upper_bound),\
2206 CAT(NAME,_canonicalize_dynamic_reloc)
2207    /* Get the amount of memory required to hold the dynamic symbols. */
2208   long  (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *));
2209    /* Read in the dynamic symbols.  */
2210   long  (*_bfd_canonicalize_dynamic_symtab)
2211     PARAMS ((bfd *, struct symbol_cache_entry **));
2212    /* Get the amount of memory required to hold the dynamic relocs.  */
2213   long  (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *));
2214    /* Read in the dynamic relocs.  */
2215   long  (*_bfd_canonicalize_dynamic_reloc)
2216     PARAMS ((bfd *, arelent **, struct symbol_cache_entry **));
2217
2218  PTR backend_data;
2219 } bfd_target;
2220 const bfd_target *
2221 bfd_find_target PARAMS ((CONST char *target_name, bfd *abfd));
2222
2223 const char **
2224 bfd_target_list PARAMS ((void));
2225
2226 boolean
2227 bfd_check_format PARAMS ((bfd *abfd, bfd_format format));
2228
2229 boolean
2230 bfd_check_format_matches PARAMS ((bfd *abfd, bfd_format format, char ***matching));
2231
2232 boolean
2233 bfd_set_format PARAMS ((bfd *abfd, bfd_format format));
2234
2235 CONST char *
2236 bfd_format_string PARAMS ((bfd_format format));
2237
2238 #endif