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.  If the
 103    host implements 64-bit values, it defines BFD_HOST_64_BIT to be the appropriate
 104    type.  Otherwise, this code will fall back on gcc's "long long" type if gcc
 105    is being used.  BFD_HOST_64_BIT must be defined in such a way as to be a valid
 106    type name by itself or with "unsigned" prefixed.  It should be a signed
 107    type by itself.
 108
 109    If neither is the case, then compilation will fail if 64-bit targets are
 110    requested.  If you don't request any 64-bit targets, you should be safe. */
 111
 112 #ifdef  BFD64
 113
 114 #if defined (__GNUC__) && !defined (BFD_HOST_64_BIT)
 115 #define BFD_HOST_64_BIT long long
 116 typedef BFD_HOST_64_BIT int64_type;
 117 typedef unsigned BFD_HOST_64_BIT uint64_type;
 118 #endif
 119
 120 #if !defined (uint64_type) && defined (__GNUC__)
 121 #define uint64_type unsigned long long
 122 #define int64_type long long
 123 #endif
 124 #ifndef uint64_typeLOW
 125 #define uint64_typeLOW(x) ((unsigned long)(((x) & 0xffffffff)))
 126 #define uint64_typeHIGH(x) ((unsigned long)(((x) >> 32) & 0xffffffff))
 127 #endif
 128
 129 typedef unsigned BFD_HOST_64_BIT bfd_vma;
 130 typedef BFD_HOST_64_BIT bfd_signed_vma;
 131 typedef unsigned BFD_HOST_64_BIT bfd_size_type;
 132 typedef unsigned BFD_HOST_64_BIT symvalue;
 133 #ifndef fprintf_vma
 134 #define fprintf_vma(s,x) \
 135                 fprintf(s,"%08lx%08lx", uint64_typeHIGH(x), uint64_typeLOW(x))
 136 #define sprintf_vma(s,x) \
 137                 sprintf(s,"%08lx%08lx", uint64_typeHIGH(x), uint64_typeLOW(x))
 138 #endif
 139 #else /* not BFD64  */
 140
 141 /* Represent a target address.  Also used as a generic unsigned type
 142    which is guaranteed to be big enough to hold any arithmetic types
 143    we need to deal with.  */
 144 typedef unsigned long bfd_vma;
 145
 146 /* A generic signed type which is guaranteed to be big enough to hold any
 147    arithmetic types we need to deal with.  Can be assumed to be compatible
 148    with bfd_vma in the same way that signed and unsigned ints are compatible
 149    (as parameters, in assignment, etc).  */
 150 typedef long bfd_signed_vma;
 151
 152 typedef unsigned long symvalue;
 153 typedef unsigned long bfd_size_type;
 154
 155 /* Print a bfd_vma x on stream s.  */
 156 #define fprintf_vma(s,x) fprintf(s, "%08lx", x)
 157 #define sprintf_vma(s,x) sprintf(s, "%08lx", x)
 158 #endif /* not BFD64  */
 159 #define printf_vma(x) fprintf_vma(stdout,x)
 160
 161 typedef unsigned int flagword;  /* 32 bits of flags */
 162 \f
 163 /** File formats */
 164
 165 typedef enum bfd_format {
 166               bfd_unknown = 0,  /* file format is unknown */
 167               bfd_object,       /* linker/assember/compiler output */
 168               bfd_archive,      /* object archive file */
 169               bfd_core,         /* core dump */
 170               bfd_type_end}     /* marks the end; don't use it! */
 171          bfd_format;
 172
 173 /* Values that may appear in the flags field of a BFD.  These also
 174    appear in the object_flags field of the bfd_target structure, where
 175    they indicate the set of flags used by that backend (not all flags
 176    are meaningful for all object file formats) (FIXME: at the moment,
 177    the object_flags values have mostly just been copied from backend
 178    to another, and are not necessarily correct).  */
 179
 180 /* No flags.  */
 181 #define NO_FLAGS        0x00
 182
 183 /* BFD contains relocation entries.  */
 184 #define HAS_RELOC       0x01
 185
 186 /* BFD is directly executable.  */
 187 #define EXEC_P          0x02
 188
 189 /* BFD has line number information (basically used for F_LNNO in a
 190    COFF header).  */
 191 #define HAS_LINENO      0x04
 192
 193 /* BFD has debugging information.  */
 194 #define HAS_DEBUG       0x08
 195
 196 /* BFD has symbols.  */
 197 #define HAS_SYMS        0x10
 198
 199 /* BFD has local symbols (basically used for F_LSYMS in a COFF
 200    header).  */
 201 #define HAS_LOCALS      0x20
 202
 203 /* BFD is a dynamic object.  */
 204 #define DYNAMIC         0x40
 205
 206 /* Text section is write protected (if D_PAGED is not set, this is
 207    like an a.out NMAGIC file) (the linker sets this by default, but
 208    clears it for -r or -N).  */
 209 #define WP_TEXT         0x80
 210
 211 /* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
 212    linker sets this by default, but clears it for -r or -n or -N).  */
 213 #define D_PAGED         0x100
 214
 215 /* BFD is relaxable (this means that bfd_relax_section may be able to
 216    do something).  */
 217 #define BFD_IS_RELAXABLE 0x200
 218
 219 /* This may be set before writing out a BFD to request using a
 220    traditional format.  For example, this is used to request that when
 221    writing out an a.out object the symbols not be hashed to eliminate
 222    duplicates.  */
 223 #define BFD_TRADITIONAL_FORMAT 0x400
 224 \f
 225 /* symbols and relocation */
 226
 227 /* A count of carsyms (canonical archive symbols).  */
 228 typedef unsigned long symindex;
 229
 230 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
 231
 232 /* General purpose part of a symbol X;
 233    target specific parts are in libcoff.h, libaout.h, etc.  */
 234
 235 #define bfd_get_section(x) ((x)->section)
 236 #define bfd_get_output_section(x) ((x)->section->output_section)
 237 #define bfd_set_section(x,y) ((x)->section) = (y)
 238 #define bfd_asymbol_base(x) ((x)->section->vma)
 239 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
 240 #define bfd_asymbol_name(x) ((x)->name)
 241 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
 242 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
 243 #define bfd_asymbol_flavour(x) (bfd_asymbol_bfd(x)->xvec->flavour)
 244
 245 /* A canonical archive symbol.  */
 246 /* This is a type pun with struct ranlib on purpose! */
 247 typedef struct carsym {
 248   char *name;
 249   file_ptr file_offset;         /* look here to find the file */
 250 } carsym;                       /* to make these you call a carsymogen */
 251
 252
 253 /* Used in generating armaps (archive tables of contents).
 254    Perhaps just a forward definition would do? */
 255 struct orl {                    /* output ranlib */
 256   char **name;                  /* symbol name */
 257   file_ptr pos;                 /* bfd* or file position */
 258   int namidx;                   /* index into string table */
 259 };
 260
 261 \f
 262
 263 /* Linenumber stuff */
 264 typedef struct lineno_cache_entry {
 265   unsigned int line_number;     /* Linenumber from start of function*/
 266   union {
 267     struct symbol_cache_entry *sym; /* Function name */
 268     unsigned long offset;       /* Offset into section */
 269   } u;
 270 } alent;
 271 \f
 272 /* object and core file sections */
 273
 274
 275 #define align_power(addr, align)        \
 276         ( ((addr) + ((1<<(align))-1)) & (-1 << (align)))
 277
 278 typedef struct sec *sec_ptr;
 279
 280 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0)
 281 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0)
 282 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0)
 283 #define bfd_section_name(bfd, ptr) ((ptr)->name)
 284 #define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
 285 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
 286 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
 287 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
 288 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
 289
 290 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
 291
 292 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma= (val)), ((ptr)->user_set_vma = true), true)
 293 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),true)
 294 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),true)
 295
 296 typedef struct stat stat_type;
 297 \f
 298 typedef enum bfd_print_symbol
 299 {
 300   bfd_print_symbol_name,
 301   bfd_print_symbol_more,
 302   bfd_print_symbol_all
 303 } bfd_print_symbol_type;
 304
 305 /* Information about a symbol that nm needs.  */
 306
 307 typedef struct _symbol_info
 308 {
 309   symvalue value;
 310   char type;
 311   CONST char *name;            /* Symbol name.  */
 312   char stab_other;             /* Unused. */
 313   short stab_desc;             /* Info for N_TYPE.  */
 314   CONST char *stab_name;
 315 } symbol_info;
 316 \f
 317 /* Hash table routines.  There is no way to free up a hash table.  */
 318
 319 /* An element in the hash table.  Most uses will actually use a larger
 320    structure, and an instance of this will be the first field.  */
 321
 322 struct bfd_hash_entry
 323 {
 324   /* Next entry for this hash code.  */
 325   struct bfd_hash_entry *next;
 326   /* String being hashed.  */
 327   const char *string;
 328   /* Hash code.  This is the full hash code, not the index into the
 329      table.  */
 330   unsigned long hash;
 331 };
 332
 333 /* A hash table.  */
 334
 335 struct bfd_hash_table
 336 {
 337   /* The hash array.  */
 338   struct bfd_hash_entry **table;
 339   /* The number of slots in the hash table.  */
 340   unsigned int size;
 341   /* A function used to create new elements in the hash table.  The
 342      first entry is itself a pointer to an element.  When this
 343      function is first invoked, this pointer will be NULL.  However,
 344      having the pointer permits a hierarchy of method functions to be
 345      built each of which calls the function in the superclass.  Thus
 346      each function should be written to allocate a new block of memory
 347      only if the argument is NULL.  */
 348   struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
 349                                              struct bfd_hash_table *,
 350                                              const char *));
 351   /* An obstack for this hash table.  */
 352   struct obstack memory;
 353 };
 354
 355 /* Initialize a hash table.  */
 356 extern boolean bfd_hash_table_init
 357   PARAMS ((struct bfd_hash_table *,
 358            struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 359                                        struct bfd_hash_table *,
 360                                        const char *)));
 361
 362 /* Initialize a hash table specifying a size.  */
 363 extern boolean bfd_hash_table_init_n
 364   PARAMS ((struct bfd_hash_table *,
 365            struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 366                                        struct bfd_hash_table *,
 367                                        const char *),
 368            unsigned int size));
 369
 370 /* Free up a hash table.  */
 371 extern void bfd_hash_table_free PARAMS ((struct bfd_hash_table *));
 372
 373 /* Look up a string in a hash table.  If CREATE is true, a new entry
 374    will be created for this string if one does not already exist.  The
 375    COPY argument must be true if this routine should copy the string
 376    into newly allocated memory when adding an entry.  */
 377 extern struct bfd_hash_entry *bfd_hash_lookup
 378   PARAMS ((struct bfd_hash_table *, const char *, boolean create,
 379            boolean copy));
 380
 381 /* Base method for creating a hash table entry.  */
 382 extern struct bfd_hash_entry *bfd_hash_newfunc
 383   PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
 384            const char *));
 385
 386 /* Grab some space for a hash table entry.  */
 387 extern PTR bfd_hash_allocate PARAMS ((struct bfd_hash_table *,
 388                                       unsigned int));
 389
 390 /* Traverse a hash table in a random order, calling a function on each
 391    element.  If the function returns false, the traversal stops.  The
 392    INFO argument is passed to the function.  */
 393 extern void bfd_hash_traverse PARAMS ((struct bfd_hash_table *,
 394                                        boolean (*) (struct bfd_hash_entry *,
 395                                                     PTR),
 396                                        PTR info));
 397 \f
 398 /* Semi-portable string concatenation in cpp.
 399    The CAT4 hack is to avoid a problem with some strict ANSI C preprocessors.
 400    The problem is, "32_" is not a valid preprocessing token, and we don't
 401    want extra underscores (e.g., "nlm_32_").  The XCAT2 macro will cause the
 402    inner CAT macros to be evaluated first, producing still-valid pp-tokens.
 403    Then the final concatenation can be done.  (Sigh.)  */
 404 #ifndef CAT
 405 #ifdef SABER
 406 #define CAT(a,b)        a##b
 407 #define CAT3(a,b,c)     a##b##c
 408 #define CAT4(a,b,c,d)   a##b##c##d
 409 #else
 410 #if defined(__STDC__) || defined(ALMOST_STDC)
 411 #define CAT(a,b) a##b
 412 #define CAT3(a,b,c) a##b##c
 413 #define XCAT2(a,b)      CAT(a,b)
 414 #define CAT4(a,b,c,d)   XCAT2(CAT(a,b),CAT(c,d))
 415 #else
 416 #define CAT(a,b) a/**/b
 417 #define CAT3(a,b,c) a/**/b/**/c
 418 #define CAT4(a,b,c,d)   a/**/b/**/c/**/d
 419 #endif
 420 #endif
 421 #endif
 422
 423 #define COFF_SWAP_TABLE (PTR) &bfd_coff_std_swap_table
 424 \f
 425 /* User program access to BFD facilities */
 426
 427 /* Cast from const char * to char * so that caller can assign to
 428    a char * without a warning.  */
 429 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
 430 #define bfd_get_cacheable(abfd) ((abfd)->cacheable)
 431 #define bfd_get_format(abfd) ((abfd)->format)
 432 #define bfd_get_target(abfd) ((abfd)->xvec->name)
 433 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
 434 #define bfd_get_file_flags(abfd) ((abfd)->flags)
 435 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
 436 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
 437 #define bfd_my_archive(abfd) ((abfd)->my_archive)
 438 #define bfd_has_map(abfd) ((abfd)->has_armap)
 439
 440 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
 441 #define bfd_usrdata(abfd) ((abfd)->usrdata)
 442
 443 #define bfd_get_start_address(abfd) ((abfd)->start_address)
 444 #define bfd_get_symcount(abfd) ((abfd)->symcount)
 445 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
 446 #define bfd_count_sections(abfd) ((abfd)->section_count)
 447
 448 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
 449
 450 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = (bool)), true)
 451
 452 /* Byte swapping routines.  */
 453
 454 bfd_vma         bfd_getb64         PARAMS ((const unsigned char *));
 455 bfd_vma         bfd_getl64         PARAMS ((const unsigned char *));
 456 bfd_signed_vma  bfd_getb_signed_64 PARAMS ((const unsigned char *));
 457 bfd_signed_vma  bfd_getl_signed_64 PARAMS ((const unsigned char *));
 458 bfd_vma         bfd_getb32         PARAMS ((const unsigned char *));
 459 bfd_vma         bfd_getl32         PARAMS ((const unsigned char *));
 460 bfd_signed_vma  bfd_getb_signed_32 PARAMS ((const unsigned char *));
 461 bfd_signed_vma  bfd_getl_signed_32 PARAMS ((const unsigned char *));
 462 bfd_vma         bfd_getb16         PARAMS ((const unsigned char *));
 463 bfd_vma         bfd_getl16         PARAMS ((const unsigned char *));
 464 bfd_signed_vma  bfd_getb_signed_16 PARAMS ((const unsigned char *));
 465 bfd_signed_vma  bfd_getl_signed_16 PARAMS ((const unsigned char *));
 466 void            bfd_putb64         PARAMS ((bfd_vma, unsigned char *));
 467 void            bfd_putl64         PARAMS ((bfd_vma, unsigned char *));
 468 void            bfd_putb32         PARAMS ((bfd_vma, unsigned char *));
 469 void            bfd_putl32         PARAMS ((bfd_vma, unsigned char *));
 470 void            bfd_putb16         PARAMS ((bfd_vma, unsigned char *));
 471 void            bfd_putl16         PARAMS ((bfd_vma, unsigned char *));
 472 \f
 473 /* Externally visible ECOFF routines.  */
 474
 475 #if defined(__STDC__) || defined(ALMOST_STDC)
 476 struct ecoff_debug_info;
 477 struct ecoff_debug_swap;
 478 struct ecoff_extr;
 479 struct symbol_cache_entry;
 480 struct bfd_link_info;
 481 #endif
 482 extern bfd_vma bfd_ecoff_get_gp_value PARAMS ((bfd * abfd));
 483 extern boolean bfd_ecoff_set_gp_value PARAMS ((bfd *abfd, bfd_vma gp_value));
 484 extern boolean bfd_ecoff_set_regmasks
 485   PARAMS ((bfd *abfd, unsigned long gprmask, unsigned long fprmask,
 486            unsigned long *cprmask));
 487 extern PTR bfd_ecoff_debug_init
 488   PARAMS ((bfd *output_bfd, struct ecoff_debug_info *output_debug,
 489            const struct ecoff_debug_swap *output_swap,
 490            struct bfd_link_info *));
 491 extern void bfd_ecoff_debug_free
 492   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 493            const struct ecoff_debug_swap *output_swap,
 494            struct bfd_link_info *));
 495 extern boolean bfd_ecoff_debug_accumulate
 496   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 497            const struct ecoff_debug_swap *output_swap,
 498            bfd *input_bfd, struct ecoff_debug_info *input_debug,
 499            const struct ecoff_debug_swap *input_swap,
 500            struct bfd_link_info *));
 501 extern boolean bfd_ecoff_debug_accumulate_other
 502   PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 503            const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 504            struct bfd_link_info *));
 505 extern boolean bfd_ecoff_debug_externals
 506   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 507            const struct ecoff_debug_swap *swap,
 508            boolean relocateable,
 509            boolean (*get_extr) (struct symbol_cache_entry *,
 510                                 struct ecoff_extr *),
 511            void (*set_index) (struct symbol_cache_entry *,
 512                               bfd_size_type)));
 513 extern boolean bfd_ecoff_debug_one_external
 514   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 515            const struct ecoff_debug_swap *swap,
 516            const char *name, struct ecoff_extr *esym));
 517 extern bfd_size_type bfd_ecoff_debug_size
 518   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 519            const struct ecoff_debug_swap *swap));
 520 extern boolean bfd_ecoff_write_debug
 521   PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
 522            const struct ecoff_debug_swap *swap, file_ptr where));
 523 extern boolean bfd_ecoff_write_accumulated_debug
 524   PARAMS ((PTR handle, bfd *abfd, struct ecoff_debug_info *debug,
 525            const struct ecoff_debug_swap *swap,
 526            struct bfd_link_info *info, file_ptr where));
 527
 528 /* Externally visible ELF routines.  */
 529
 530 extern boolean bfd_elf32_record_link_assignment
 531   PARAMS ((bfd *, struct bfd_link_info *, const char *));
 532 extern boolean bfd_elf64_record_link_assignment
 533   PARAMS ((bfd *, struct bfd_link_info *, const char *));
 534 extern boolean bfd_elf32_size_dynamic_sections
 535   PARAMS ((bfd *, struct bfd_link_info *, struct sec **));
 536 extern boolean bfd_elf64_size_dynamic_sections
 537   PARAMS ((bfd *, struct bfd_link_info *, struct sec **));
 538 extern void bfd_elf_set_dt_needed_name PARAMS ((bfd *, const char *));
 539
 540 /* SunOS shared library support routines for the linker.  */
 541
 542 extern boolean bfd_sunos_record_link_assignment
 543   PARAMS ((bfd *, struct bfd_link_info *, const char *));
 544 extern boolean bfd_sunos_size_dynamic_sections
 545   PARAMS ((bfd *, struct bfd_link_info *, struct sec **, struct sec **,
 546            struct sec **));
 547
 548 /* Linux shared library support routines for the linker.  */
 549
 550 extern boolean bfd_linux_size_dynamic_sections
 551   PARAMS ((bfd *, struct bfd_link_info *));
 552
 553 /* And more from the source.  */
 554 void
 555 bfd_init PARAMS ((void));
 556
 557 bfd *
 558 bfd_openr PARAMS ((CONST char *filename, CONST char *target));
 559
 560 bfd *
 561 bfd_fdopenr PARAMS ((CONST char *filename, CONST char *target, int fd));
 562
 563 bfd *
 564 bfd_openw PARAMS ((CONST char *filename, CONST char *target));
 565
 566 boolean
 567 bfd_close PARAMS ((bfd *abfd));
 568
 569 boolean
 570 bfd_close_all_done PARAMS ((bfd *));
 571
 572 bfd_size_type
 573 bfd_alloc_size PARAMS ((bfd *abfd));
 574
 575 bfd *
 576 bfd_create PARAMS ((CONST char *filename, bfd *templ));
 577
 578
 579  /* Byte swapping macros for user section data.  */
 580
 581 #define bfd_put_8(abfd, val, ptr) \
 582                 (*((unsigned char *)(ptr)) = (unsigned char)(val))
 583 #define bfd_put_signed_8 \
 584                 bfd_put_8
 585 #define bfd_get_8(abfd, ptr) \
 586                 (*(unsigned char *)(ptr))
 587 #define bfd_get_signed_8(abfd, ptr) \
 588                 ((*(unsigned char *)(ptr) ^ 0x80) - 0x80)
 589
 590 #define bfd_put_16(abfd, val, ptr) \
 591                 BFD_SEND(abfd, bfd_putx16, ((val),(ptr)))
 592 #define bfd_put_signed_16 \
 593                  bfd_put_16
 594 #define bfd_get_16(abfd, ptr) \
 595                 BFD_SEND(abfd, bfd_getx16, (ptr))
 596 #define bfd_get_signed_16(abfd, ptr) \
 597                  BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
 598
 599 #define bfd_put_32(abfd, val, ptr) \
 600                 BFD_SEND(abfd, bfd_putx32, ((val),(ptr)))
 601 #define bfd_put_signed_32 \
 602                  bfd_put_32
 603 #define bfd_get_32(abfd, ptr) \
 604                 BFD_SEND(abfd, bfd_getx32, (ptr))
 605 #define bfd_get_signed_32(abfd, ptr) \
 606                  BFD_SEND(abfd, bfd_getx_signed_32, (ptr))
 607
 608 #define bfd_put_64(abfd, val, ptr) \
 609                 BFD_SEND(abfd, bfd_putx64, ((val), (ptr)))
 610 #define bfd_put_signed_64 \
 611                  bfd_put_64
 612 #define bfd_get_64(abfd, ptr) \
 613                 BFD_SEND(abfd, bfd_getx64, (ptr))
 614 #define bfd_get_signed_64(abfd, ptr) \
 615                  BFD_SEND(abfd, bfd_getx_signed_64, (ptr))
 616
 617
 618  /* Byte swapping macros for file header data.  */
 619
 620 #define bfd_h_put_8(abfd, val, ptr) \
 621                 bfd_put_8 (abfd, val, ptr)
 622 #define bfd_h_put_signed_8(abfd, val, ptr) \
 623                 bfd_put_8 (abfd, val, ptr)
 624 #define bfd_h_get_8(abfd, ptr) \
 625                 bfd_get_8 (abfd, ptr)
 626 #define bfd_h_get_signed_8(abfd, ptr) \
 627                 bfd_get_signed_8 (abfd, ptr)
 628
 629 #define bfd_h_put_16(abfd, val, ptr) \
 630                 BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
 631 #define bfd_h_put_signed_16 \
 632                  bfd_h_put_16
 633 #define bfd_h_get_16(abfd, ptr) \
 634                 BFD_SEND(abfd, bfd_h_getx16,(ptr))
 635 #define bfd_h_get_signed_16(abfd, ptr) \
 636                  BFD_SEND(abfd, bfd_h_getx_signed_16, (ptr))
 637
 638 #define bfd_h_put_32(abfd, val, ptr) \
 639                 BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
 640 #define bfd_h_put_signed_32 \
 641                  bfd_h_put_32
 642 #define bfd_h_get_32(abfd, ptr) \
 643                 BFD_SEND(abfd, bfd_h_getx32,(ptr))
 644 #define bfd_h_get_signed_32(abfd, ptr) \
 645                  BFD_SEND(abfd, bfd_h_getx_signed_32, (ptr))
 646
 647 #define bfd_h_put_64(abfd, val, ptr) \
 648                 BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
 649 #define bfd_h_put_signed_64 \
 650                  bfd_h_put_64
 651 #define bfd_h_get_64(abfd, ptr) \
 652                 BFD_SEND(abfd, bfd_h_getx64,(ptr))
 653 #define bfd_h_get_signed_64(abfd, ptr) \
 654                  BFD_SEND(abfd, bfd_h_getx_signed_64, (ptr))
 655
 656 typedef struct sec
 657 {
 658          /* The name of the section; the name isn't a copy, the pointer is
 659         the same as that passed to bfd_make_section. */
 660
 661     CONST char *name;
 662
 663          /* Which section is it; 0..nth.      */
 664
 665    int index;
 666
 667          /* The next section in the list belonging to the BFD, or NULL. */
 668
 669     struct sec *next;
 670
 671          /* The field flags contains attributes of the section. Some
 672            flags are read in from the object file, and some are
 673            synthesized from other information.  */
 674
 675     flagword flags;
 676
 677 #define SEC_NO_FLAGS   0x000
 678
 679          /* Tells the OS to allocate space for this section when loading.
 680            This is clear for a section containing debug information
 681            only. */
 682 #define SEC_ALLOC      0x001
 683
 684          /* Tells the OS to load the section from the file when loading.
 685            This is clear for a .bss section. */
 686 #define SEC_LOAD       0x002
 687
 688          /* The section contains data still to be relocated, so there is
 689            some relocation information too. */
 690 #define SEC_RELOC      0x004
 691
 692 #if 0    /* Obsolete ? */
 693 #define SEC_BALIGN     0x008
 694 #endif
 695
 696          /* A signal to the OS that the section contains read only
 697           data. */
 698 #define SEC_READONLY   0x010
 699
 700          /* The section contains code only. */
 701 #define SEC_CODE       0x020
 702
 703          /* The section contains data only. */
 704 #define SEC_DATA       0x040
 705
 706          /* The section will reside in ROM. */
 707 #define SEC_ROM        0x080
 708
 709          /* The section contains constructor information. This section
 710            type is used by the linker to create lists of constructors and
 711            destructors used by <<g++>>. When a back end sees a symbol
 712            which should be used in a constructor list, it creates a new
 713            section for the type of name (e.g., <<__CTOR_LIST__>>), attaches
 714            the symbol to it, and builds a relocation. To build the lists
 715            of constructors, all the linker has to do is catenate all the
 716            sections called <<__CTOR_LIST__>> and relocate the data
 717            contained within - exactly the operations it would peform on
 718            standard data. */
 719 #define SEC_CONSTRUCTOR 0x100
 720
 721          /* The section is a constuctor, and should be placed at the
 722           end of the text, data, or bss section(?). */
 723 #define SEC_CONSTRUCTOR_TEXT 0x1100
 724 #define SEC_CONSTRUCTOR_DATA 0x2100
 725 #define SEC_CONSTRUCTOR_BSS  0x3100
 726
 727          /* The section has contents - a data section could be
 728            <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>; a debug section could be
 729            <<SEC_HAS_CONTENTS>> */
 730 #define SEC_HAS_CONTENTS 0x200
 731
 732          /* An instruction to the linker to not output the section
 733            even if it has information which would normally be written. */
 734 #define SEC_NEVER_LOAD 0x400
 735
 736          /* The section is a COFF shared library section.  This flag is
 737            only for the linker.  If this type of section appears in
 738            the input file, the linker must copy it to the output file
 739            without changing the vma or size.  FIXME: Although this
 740            was originally intended to be general, it really is COFF
 741            specific (and the flag was renamed to indicate this).  It
 742            might be cleaner to have some more general mechanism to
 743            allow the back end to control what the linker does with
 744            sections. */
 745 #define SEC_COFF_SHARED_LIBRARY 0x800
 746
 747          /* The section is a common section (symbols may be defined
 748            multiple times, the value of a symbol is the amount of
 749            space it requires, and the largest symbol value is the one
 750            used).  Most targets have exactly one of these (which we
 751             translate to bfd_com_section_ptr), but ECOFF has two. */
 752 #define SEC_IS_COMMON 0x8000
 753
 754          /* The section contains only debugging information.  For
 755            example, this is set for ELF .debug and .stab sections.
 756            strip tests this flag to see if a section can be
 757            discarded. */
 758 #define SEC_DEBUGGING 0x10000
 759
 760          /* The contents of this section are held in memory pointed to
 761            by the contents field.  This is checked by
 762            bfd_get_section_contents, and the data is retrieved from
 763            memory if appropriate.  */
 764 #define SEC_IN_MEMORY 0x20000
 765
 766          /*  End of section flags.  */
 767
 768         /*  The virtual memory address of the section - where it will be
 769            at run time.  The symbols are relocated against this.  The
 770             user_set_vma flag is maintained by bfd; if it's not set, the
 771             backend can assign addresses (for example, in <<a.out>>, where
 772             the default address for <<.data>> is dependent on the specific
 773             target and various flags).  */
 774
 775    bfd_vma vma;
 776    boolean user_set_vma;
 777
 778         /*  The load address of the section - where it would be in a
 779            rom image; really only used for writing section header
 780             information. */
 781
 782    bfd_vma lma;
 783
 784          /* The size of the section in bytes, as it will be output.
 785            contains a value even if the section has no contents (e.g., the
 786            size of <<.bss>>). This will be filled in after relocation */
 787
 788    bfd_size_type _cooked_size;
 789
 790          /* The original size on disk of the section, in bytes.  Normally this
 791             value is the same as the size, but if some relaxing has
 792             been done, then this value will be bigger.  */
 793
 794    bfd_size_type _raw_size;
 795
 796          /* If this section is going to be output, then this value is the
 797            offset into the output section of the first byte in the input
 798            section. E.g., if this was going to start at the 100th byte in
 799            the output section, this value would be 100. */
 800
 801    bfd_vma output_offset;
 802
 803          /* The output section through which to map on output. */
 804
 805    struct sec *output_section;
 806
 807          /* The alignment requirement of the section, as an exponent of 2 -
 808            e.g., 3 aligns to 2^3 (or 8). */
 809
 810    unsigned int alignment_power;
 811
 812          /* If an input section, a pointer to a vector of relocation
 813            records for the data in this section. */
 814
 815    struct reloc_cache_entry *relocation;
 816
 817          /* If an output section, a pointer to a vector of pointers to
 818            relocation records for the data in this section. */
 819
 820    struct reloc_cache_entry **orelocation;
 821
 822          /* The number of relocation records in one of the above  */
 823
 824    unsigned reloc_count;
 825
 826          /* Information below is back end specific - and not always used
 827            or updated.  */
 828
 829          /* File position of section data    */
 830
 831    file_ptr filepos;
 832
 833          /* File position of relocation info */
 834
 835    file_ptr rel_filepos;
 836
 837          /* File position of line data       */
 838
 839    file_ptr line_filepos;
 840
 841          /* Pointer to data for applications */
 842
 843    PTR userdata;
 844
 845          /* If the SEC_IN_MEMORY flag is set, this points to the actual
 846            contents.  */
 847    unsigned char *contents;
 848
 849          /* Attached line number information */
 850
 851    alent *lineno;
 852
 853          /* Number of line number records   */
 854
 855    unsigned int lineno_count;
 856
 857          /* When a section is being output, this value changes as more
 858            linenumbers are written out */
 859
 860    file_ptr moving_line_filepos;
 861
 862          /* What the section number is in the target world  */
 863
 864    int target_index;
 865
 866    PTR used_by_bfd;
 867
 868          /* If this is a constructor section then here is a list of the
 869            relocations created to relocate items within it. */
 870
 871    struct relent_chain *constructor_chain;
 872
 873          /* The BFD which owns the section. */
 874
 875    bfd *owner;
 876
 877    boolean reloc_done;
 878           /* A symbol which points at this section only */
 879    struct symbol_cache_entry *symbol;
 880    struct symbol_cache_entry **symbol_ptr_ptr;
 881
 882    struct bfd_link_order *link_order_head;
 883    struct bfd_link_order *link_order_tail;
 884 } asection ;
 885
 886      /* These sections are global, and are managed by BFD.  The application
 887        and target back end are not permitted to change the values in
 888         these sections.  New code should use the section_ptr macros rather
 889        than referring directly to the const sections.  The const sections
 890        may eventually vanish.  */
 891 #define BFD_ABS_SECTION_NAME "*ABS*"
 892 #define BFD_UND_SECTION_NAME "*UND*"
 893 #define BFD_COM_SECTION_NAME "*COM*"
 894 #define BFD_IND_SECTION_NAME "*IND*"
 895
 896      /* the absolute section */
 897 extern const asection bfd_abs_section;
 898 #define bfd_abs_section_ptr ((asection *) &bfd_abs_section)
 899 #define bfd_is_abs_section(sec) ((sec) == bfd_abs_section_ptr)
 900      /* Pointer to the undefined section */
 901 extern const asection bfd_und_section;
 902 #define bfd_und_section_ptr ((asection *) &bfd_und_section)
 903 #define bfd_is_und_section(sec) ((sec) == bfd_und_section_ptr)
 904      /* Pointer to the common section */
 905 extern const asection bfd_com_section;
 906 #define bfd_com_section_ptr ((asection *) &bfd_com_section)
 907      /* Pointer to the indirect section */
 908 extern const asection bfd_ind_section;
 909 #define bfd_ind_section_ptr ((asection *) &bfd_ind_section)
 910 #define bfd_is_ind_section(sec) ((sec) == bfd_ind_section_ptr)
 911
 912 extern const struct symbol_cache_entry * const bfd_abs_symbol;
 913 extern const struct symbol_cache_entry * const bfd_com_symbol;
 914 extern const struct symbol_cache_entry * const bfd_und_symbol;
 915 extern const struct symbol_cache_entry * const bfd_ind_symbol;
 916 #define bfd_get_section_size_before_reloc(section) \
 917      (section->reloc_done ? (abort(),1): (section)->_raw_size)
 918 #define bfd_get_section_size_after_reloc(section) \
 919      ((section->reloc_done) ? (section)->_cooked_size: (abort(),1))
 920 asection *
 921 bfd_get_section_by_name PARAMS ((bfd *abfd, CONST char *name));
 922
 923 asection *
 924 bfd_make_section_old_way PARAMS ((bfd *abfd, CONST char *name));
 925
 926 asection *
 927 bfd_make_section_anyway PARAMS ((bfd *abfd, CONST char *name));
 928
 929 asection *
 930 bfd_make_section PARAMS ((bfd *, CONST char *name));
 931
 932 boolean
 933 bfd_set_section_flags PARAMS ((bfd *abfd, asection *sec, flagword flags));
 934
 935 void
 936 bfd_map_over_sections PARAMS ((bfd *abfd,
 937     void (*func)(bfd *abfd,
 938     asection *sect,
 939     PTR obj),
 940     PTR obj));
 941
 942 boolean
 943 bfd_set_section_size PARAMS ((bfd *abfd, asection *sec, bfd_size_type val));
 944
 945 boolean
 946 bfd_set_section_contents
 947  PARAMS ((bfd *abfd,
 948     asection *section,
 949     PTR data,
 950     file_ptr offset,
 951     bfd_size_type count));
 952
 953 boolean
 954 bfd_get_section_contents
 955  PARAMS ((bfd *abfd, asection *section, PTR location,
 956     file_ptr offset, bfd_size_type count));
 957
 958 boolean
 959 bfd_copy_private_section_data PARAMS ((bfd *ibfd, asection *isec, bfd *obfd, asection *osec));
 960
 961 #define bfd_copy_private_section_data(ibfd, isection, obfd, osection) \
 962      BFD_SEND (ibfd, _bfd_copy_private_section_data, \
 963                 (ibfd, isection, obfd, osection))
 964 enum bfd_architecture
 965 {
 966   bfd_arch_unknown,    /* File arch not known */
 967   bfd_arch_obscure,    /* Arch known, not one of these */
 968   bfd_arch_m68k,       /* Motorola 68xxx */
 969   bfd_arch_vax,        /* DEC Vax */
 970   bfd_arch_i960,       /* Intel 960 */
 971      /* The order of the following is important.
 972        lower number indicates a machine type that
 973        only accepts a subset of the instructions
 974        available to machines with higher numbers.
 975        The exception is the "ca", which is
 976        incompatible with all other machines except
 977        "core". */
 978
 979 #define bfd_mach_i960_core      1
 980 #define bfd_mach_i960_ka_sa     2
 981 #define bfd_mach_i960_kb_sb     3
 982 #define bfd_mach_i960_mc        4
 983 #define bfd_mach_i960_xa        5
 984 #define bfd_mach_i960_ca        6
 985
 986   bfd_arch_a29k,       /* AMD 29000 */
 987   bfd_arch_sparc,      /* SPARC */
 988   bfd_arch_mips,       /* MIPS Rxxxx */
 989   bfd_arch_i386,       /* Intel 386 */
 990   bfd_arch_we32k,      /* AT&T WE32xxx */
 991   bfd_arch_tahoe,      /* CCI/Harris Tahoe */
 992   bfd_arch_i860,       /* Intel 860 */
 993   bfd_arch_romp,       /* IBM ROMP PC/RT */
 994   bfd_arch_alliant,    /* Alliant */
 995   bfd_arch_convex,     /* Convex */
 996   bfd_arch_m88k,       /* Motorola 88xxx */
 997   bfd_arch_pyramid,    /* Pyramid Technology */
 998   bfd_arch_h8300,      /* Hitachi H8/300 */
 999 #define bfd_mach_h8300   1
1000 #define bfd_mach_h8300h  2
1001   bfd_arch_powerpc,    /* PowerPC */
1002   bfd_arch_rs6000,     /* IBM RS/6000 */
1003   bfd_arch_hppa,       /* HP PA RISC */
1004   bfd_arch_z8k,        /* Zilog Z8000 */
1005 #define bfd_mach_z8001          1
1006 #define bfd_mach_z8002          2
1007   bfd_arch_h8500,      /* Hitachi H8/500 */
1008   bfd_arch_sh,         /* Hitachi SH */
1009   bfd_arch_alpha,      /* Dec Alpha */
1010   bfd_arch_ns32k,      /* National Semiconductors ns32000 */
1011   bfd_arch_last
1012   };
1013
1014 typedef struct bfd_arch_info
1015 {
1016   int bits_per_word;
1017   int bits_per_address;
1018   int bits_per_byte;
1019   enum bfd_architecture arch;
1020   long mach;
1021   char *arch_name;
1022   CONST  char *printable_name;
1023   unsigned int section_align_power;
1024   /* true if this is the default machine for the architecture */
1025   boolean the_default;
1026   CONST struct bfd_arch_info * (*compatible)
1027         PARAMS ((CONST struct bfd_arch_info *a,
1028                  CONST struct bfd_arch_info *b));
1029
1030   boolean (*scan) PARAMS ((CONST struct bfd_arch_info *, CONST char *));
1031    /* How to disassemble an instruction, producing a printable
1032      representation on a specified stdio stream.  This isn't
1033      defined for most processors at present, because of the size
1034      of the additional tables it would drag in, and because gdb
1035      wants to use a different interface.  */
1036   unsigned int (*disassemble) PARAMS ((bfd_vma addr, CONST char *data,
1037                                         PTR stream));
1038
1039   struct bfd_arch_info *next;
1040 } bfd_arch_info_type;
1041 CONST char *
1042 bfd_printable_name PARAMS ((bfd *abfd));
1043
1044 bfd_arch_info_type *
1045 bfd_scan_arch PARAMS ((CONST char *string));
1046
1047 CONST bfd_arch_info_type *
1048 bfd_arch_get_compatible PARAMS ((
1049     CONST bfd *abfd,
1050     CONST bfd *bbfd));
1051
1052 void
1053 bfd_set_arch_info PARAMS ((bfd *abfd, bfd_arch_info_type *arg));
1054
1055 enum bfd_architecture
1056 bfd_get_arch PARAMS ((bfd *abfd));
1057
1058 unsigned long
1059 bfd_get_mach PARAMS ((bfd *abfd));
1060
1061 unsigned int
1062 bfd_arch_bits_per_byte PARAMS ((bfd *abfd));
1063
1064 unsigned int
1065 bfd_arch_bits_per_address PARAMS ((bfd *abfd));
1066
1067 bfd_arch_info_type *
1068 bfd_get_arch_info PARAMS ((bfd *abfd));
1069
1070 bfd_arch_info_type *
1071 bfd_lookup_arch
1072  PARAMS ((enum bfd_architecture
1073     arch,
1074     long machine));
1075
1076 CONST char *
1077 bfd_printable_arch_mach
1078  PARAMS ((enum bfd_architecture arch, unsigned long machine));
1079
1080 typedef enum bfd_reloc_status
1081 {
1082         /* No errors detected */
1083   bfd_reloc_ok,
1084
1085         /* The relocation was performed, but there was an overflow. */
1086   bfd_reloc_overflow,
1087
1088         /* The address to relocate was not within the section supplied. */
1089   bfd_reloc_outofrange,
1090
1091         /* Used by special functions */
1092   bfd_reloc_continue,
1093
1094         /* Unsupported relocation size requested. */
1095   bfd_reloc_notsupported,
1096
1097         /* Unused */
1098   bfd_reloc_other,
1099
1100         /* The symbol to relocate against was undefined. */
1101   bfd_reloc_undefined,
1102
1103         /* The relocation was performed, but may not be ok - presently
1104           generated only when linking i960 coff files with i960 b.out
1105           symbols.  If this type is returned, the error_message argument
1106           to bfd_perform_relocation will be set.  */
1107   bfd_reloc_dangerous
1108  }
1109  bfd_reloc_status_type;
1110
1111
1112 typedef struct reloc_cache_entry
1113 {
1114         /* A pointer into the canonical table of pointers  */
1115   struct symbol_cache_entry **sym_ptr_ptr;
1116
1117         /* offset in section */
1118   bfd_size_type address;
1119
1120         /* addend for relocation value */
1121   bfd_vma addend;
1122
1123         /* Pointer to how to perform the required relocation */
1124   const struct reloc_howto_struct *howto;
1125
1126 } arelent;
1127 enum complain_overflow
1128 {
1129          /* Do not complain on overflow. */
1130   complain_overflow_dont,
1131
1132          /* Complain if the bitfield overflows, whether it is considered
1133            as signed or unsigned. */
1134   complain_overflow_bitfield,
1135
1136          /* Complain if the value overflows when considered as signed
1137            number. */
1138   complain_overflow_signed,
1139
1140          /* Complain if the value overflows when considered as an
1141            unsigned number. */
1142   complain_overflow_unsigned
1143 };
1144
1145 typedef unsigned char bfd_byte;
1146
1147 struct reloc_howto_struct
1148 {
1149         /*  The type field has mainly a documetary use - the back end can
1150            do what it wants with it, though normally the back end's
1151            external idea of what a reloc number is stored
1152            in this field. For example, a PC relative word relocation
1153            in a coff environment has the type 023 - because that's
1154            what the outside world calls a R_PCRWORD reloc. */
1155   unsigned int type;
1156
1157         /*  The value the final relocation is shifted right by. This drops
1158            unwanted data from the relocation.  */
1159   unsigned int rightshift;
1160
1161          /*  The size of the item to be relocated.  This is *not* a
1162             power-of-two measure.  To get the number of bytes operated
1163             on by a type of relocation, use bfd_get_reloc_size.  */
1164   int size;
1165
1166         /*  The number of bits in the item to be relocated.  This is used
1167             when doing overflow checking.  */
1168   unsigned int bitsize;
1169
1170         /*  Notes that the relocation is relative to the location in the
1171            data section of the addend. The relocation function will
1172            subtract from the relocation value the address of the location
1173            being relocated. */
1174   boolean pc_relative;
1175
1176          /*  The bit position of the reloc value in the destination.
1177             The relocated value is left shifted by this amount. */
1178   unsigned int bitpos;
1179
1180          /* What type of overflow error should be checked for when
1181            relocating. */
1182   enum complain_overflow complain_on_overflow;
1183
1184         /* If this field is non null, then the supplied function is
1185           called rather than the normal function. This allows really
1186           strange relocation methods to be accomodated (e.g., i960 callj
1187           instructions). */
1188   bfd_reloc_status_type (*special_function)
1189                                     PARAMS ((bfd *abfd,
1190                                              arelent *reloc_entry,
1191                                             struct symbol_cache_entry *symbol,
1192                                             PTR data,
1193                                             asection *input_section,
1194                                             bfd *output_bfd,
1195                                             char **error_message));
1196
1197
1198         /* If this field is non null, then the supplied function is
1199           called rather than the normal function. This is similar
1200            to special_function (previous), but takes different arguments,
1201           and is used for the new linking code. */
1202   bfd_reloc_status_type (*special_function1)
1203                             PARAMS((const reloc_howto_type *howto,
1204                                     bfd *input_bfd,
1205                                     bfd_vma relocation,
1206                                     bfd_byte *location));
1207
1208         /* The textual name of the relocation type. */
1209   char *name;
1210
1211         /* When performing a partial link, some formats must modify the
1212           relocations rather than the data - this flag signals this.*/
1213   boolean partial_inplace;
1214
1215         /* The src_mask selects which parts of the read in data
1216           are to be used in the relocation sum.  E.g., if this was an 8 bit
1217           bit of data which we read and relocated, this would be
1218           0x000000ff. When we have relocs which have an addend, such as
1219           sun4 extended relocs, the value in the offset part of a
1220           relocating field is garbage so we never use it. In this case
1221           the mask would be 0x00000000. */
1222   bfd_vma src_mask;
1223
1224         /* The dst_mask selects which parts of the instruction are replaced
1225           into the instruction. In most cases src_mask == dst_mask,
1226           except in the above special case, where dst_mask would be
1227           0x000000ff, and src_mask would be 0x00000000.   */
1228   bfd_vma dst_mask;
1229
1230         /* When some formats create PC relative instructions, they leave
1231           the value of the pc of the place being relocated in the offset
1232           slot of the instruction, so that a PC relative relocation can
1233           be made just by adding in an ordinary offset (e.g., sun3 a.out).
1234           Some formats leave the displacement part of an instruction
1235           empty (e.g., m88k bcs); this flag signals the fact.*/
1236   boolean pcrel_offset;
1237
1238 };
1239 typedef struct reloc_howto_struct reloc_howto_type;
1240 #define HOWTO(C, R,S,B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
1241   {(unsigned)C,R,S,B, P, BI, O,SF, 0,NAME,INPLACE,MASKSRC,MASKDST,PC}
1242 #define HOWTO2(C, R,S,B, P, BI, O, SF, SF1,NAME, INPLACE, MASKSRC, MASKDST, PC) \
1243   {(unsigned)C,R,S,B, P, BI, O,SF, SF1,NAME,INPLACE,MASKSRC,MASKDST,PC}
1244 #define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,complain_overflow_dont,FUNCTION, NAME,false,0,0,IN)
1245
1246 #define HOWTO_PREPARE(relocation, symbol)      \
1247   {                                            \
1248   if (symbol != (asymbol *)NULL) {             \
1249     if (bfd_is_com_section (symbol->section)) { \
1250       relocation = 0;                          \
1251     }                                          \
1252     else {                                     \
1253       relocation = symbol->value;              \
1254     }                                          \
1255   }                                            \
1256 }
1257 int
1258 bfd_get_reloc_size  PARAMS ((const reloc_howto_type *));
1259
1260 typedef struct relent_chain {
1261   arelent relent;
1262   struct   relent_chain *next;
1263 } arelent_chain;
1264 bfd_reloc_status_type
1265
1266 bfd_perform_relocation
1267  PARAMS ((bfd *abfd,
1268     arelent *reloc_entry,
1269     PTR data,
1270     asection *input_section,
1271     bfd *output_bfd,
1272     char **error_message));
1273
1274 typedef enum bfd_reloc_code_real
1275 {
1276    /* Basic absolute relocations */
1277   BFD_RELOC_64,
1278   BFD_RELOC_32,
1279   BFD_RELOC_26,
1280   BFD_RELOC_16,
1281   BFD_RELOC_14,
1282   BFD_RELOC_8,
1283
1284    /* PC-relative relocations */
1285   BFD_RELOC_64_PCREL,
1286   BFD_RELOC_32_PCREL,
1287   BFD_RELOC_24_PCREL,     /* used by i960 */
1288   BFD_RELOC_16_PCREL,
1289   BFD_RELOC_8_PCREL,
1290
1291    /* Linkage-table relative */
1292   BFD_RELOC_32_BASEREL,
1293   BFD_RELOC_16_BASEREL,
1294   BFD_RELOC_8_BASEREL,
1295
1296    /* The type of reloc used to build a contructor table - at the moment
1297      probably a 32 bit wide abs address, but the cpu can choose. */
1298   BFD_RELOC_CTOR,
1299
1300    /* 8 bits wide, but used to form an address like 0xffnn */
1301   BFD_RELOC_8_FFnn,
1302
1303    /* 32-bit pc-relative, shifted right 2 bits (i.e., 30-bit
1304      word displacement, e.g. for SPARC) */
1305   BFD_RELOC_32_PCREL_S2,
1306    /* signed 16-bit pc-relative, shifted right 2 bits (e.g. for MIPS) */
1307   BFD_RELOC_16_PCREL_S2,
1308    /* this is used on the Alpha */
1309   BFD_RELOC_23_PCREL_S2,
1310
1311    /* High 22 bits of 32-bit value, placed into lower 22 bits of
1312      target word; simple reloc.  */
1313   BFD_RELOC_HI22,
1314    /* Low 10 bits.  */
1315   BFD_RELOC_LO10,
1316
1317    /* For systems that allocate a Global Pointer register, these are
1318      displacements off that register.  These relocation types are
1319      handled specially, because the value the register will have is
1320      decided relatively late.  */
1321   BFD_RELOC_GPREL16,
1322   BFD_RELOC_GPREL32,
1323
1324    /* Reloc types used for i960/b.out.  */
1325   BFD_RELOC_I960_CALLJ,
1326
1327    /* now for the sparc/elf codes */
1328   BFD_RELOC_NONE,                /* actually used */
1329   BFD_RELOC_SPARC_WDISP22,
1330   BFD_RELOC_SPARC22,
1331   BFD_RELOC_SPARC13,
1332   BFD_RELOC_SPARC_GOT10,
1333   BFD_RELOC_SPARC_GOT13,
1334   BFD_RELOC_SPARC_GOT22,
1335   BFD_RELOC_SPARC_PC10,
1336   BFD_RELOC_SPARC_PC22,
1337   BFD_RELOC_SPARC_WPLT30,
1338   BFD_RELOC_SPARC_COPY,
1339   BFD_RELOC_SPARC_GLOB_DAT,
1340   BFD_RELOC_SPARC_JMP_SLOT,
1341   BFD_RELOC_SPARC_RELATIVE,
1342   BFD_RELOC_SPARC_UA32,
1343
1344    /* these are a.out specific? */
1345   BFD_RELOC_SPARC_BASE13,
1346   BFD_RELOC_SPARC_BASE22,
1347
1348    /* some relocations we're using for sparc v9
1349      -- subject to change */
1350   BFD_RELOC_SPARC_10,
1351   BFD_RELOC_SPARC_11,
1352 #define  BFD_RELOC_SPARC_64 BFD_RELOC_64
1353   BFD_RELOC_SPARC_OLO10,
1354   BFD_RELOC_SPARC_HH22,
1355   BFD_RELOC_SPARC_HM10,
1356   BFD_RELOC_SPARC_LM22,
1357   BFD_RELOC_SPARC_PC_HH22,
1358   BFD_RELOC_SPARC_PC_HM10,
1359   BFD_RELOC_SPARC_PC_LM22,
1360   BFD_RELOC_SPARC_WDISP16,
1361   BFD_RELOC_SPARC_WDISP19,
1362   BFD_RELOC_SPARC_GLOB_JMP,
1363   BFD_RELOC_SPARC_LO7,
1364
1365    /* Alpha ECOFF relocations.  Some of these treat the symbol or "addend"
1366      in some special way.  */
1367    /* For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1368      writing; when reading, it will be the absolute section symbol.  The
1369      addend is the displacement in bytes of the "lda" instruction from
1370      the "ldah" instruction (which is at the address of this reloc).  */
1371   BFD_RELOC_ALPHA_GPDISP_HI16,
1372    /* For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1373      with GPDISP_HI16 relocs.  The addend is ignored when writing the
1374      relocations out, and is filled in with the file's GP value on
1375      reading, for convenience.  */
1376   BFD_RELOC_ALPHA_GPDISP_LO16,
1377
1378    /* The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1379      the assembler turns it into a LDQ instruction to load the address of
1380      the symbol, and then fills in a register in the real instruction.
1381
1382      The LITERAL reloc, at the LDQ instruction, refers to the .lita
1383      section symbol.  The addend is ignored when writing, but is filled
1384      in with the file's GP value on reading, for convenience, as with the
1385      GPDISP_LO16 reloc.
1386
1387      The LITUSE reloc, on the instruction using the loaded address, gives
1388      information to the linker that it might be able to use to optimize
1389      away some literal section references.  The symbol is ignored (read
1390      as the absolute section symbol), and the "addend" indicates the type
1391      of instruction using the register:
1392               1 - "memory" fmt insn
1393               2 - byte-manipulation (byte offset reg)
1394               3 - jsr (target of branch)
1395
1396      The GNU linker currently doesn't do any of this optimizing.  */
1397   BFD_RELOC_ALPHA_LITERAL,
1398   BFD_RELOC_ALPHA_LITUSE,
1399
1400    /* The HINT relocation indicates a value that should be filled into the
1401      "hint" field of a jmp/jsr/ret instruction, for possible branch-
1402      prediction logic which may be provided on some processors.  */
1403   BFD_RELOC_ALPHA_HINT,
1404
1405    /* Bits 27..2 of the relocation address shifted right 2 bits;
1406      simple reloc otherwise.  */
1407   BFD_RELOC_MIPS_JMP,
1408
1409    /* High 16 bits of 32-bit value; simple reloc.  */
1410   BFD_RELOC_HI16,
1411    /* High 16 bits of 32-bit value but the low 16 bits will be sign
1412      extended and added to form the final result.  If the low 16
1413      bits form a negative number, we need to add one to the high value
1414      to compensate for the borrow when the low bits are added.  */
1415   BFD_RELOC_HI16_S,
1416    /* Low 16 bits.  */
1417   BFD_RELOC_LO16,
1418    /* Like BFD_RELOC_HI16_S, but PC relative.  */
1419   BFD_RELOC_PCREL_HI16_S,
1420    /* Like BFD_RELOC_LO16, but PC relative.  */
1421   BFD_RELOC_PCREL_LO16,
1422
1423    /* relocation relative to the global pointer.  */
1424 #define BFD_RELOC_MIPS_GPREL BFD_RELOC_GPREL16
1425
1426    /* Relocation against a MIPS literal section.  */
1427   BFD_RELOC_MIPS_LITERAL,
1428
1429    /* MIPS ELF relocations.  */
1430   BFD_RELOC_MIPS_GOT16,
1431   BFD_RELOC_MIPS_CALL16,
1432 #define BFD_RELOC_MIPS_GPREL32 BFD_RELOC_GPREL32
1433
1434    /* i386/elf relocations */
1435   BFD_RELOC_386_GOT32,
1436   BFD_RELOC_386_PLT32,
1437   BFD_RELOC_386_COPY,
1438   BFD_RELOC_386_GLOB_DAT,
1439   BFD_RELOC_386_JUMP_SLOT,
1440   BFD_RELOC_386_RELATIVE,
1441   BFD_RELOC_386_GOTOFF,
1442   BFD_RELOC_386_GOTPC,
1443
1444    /* ns32k relocations */
1445   BFD_RELOC_NS32K_IMM_8,
1446   BFD_RELOC_NS32K_IMM_16,
1447   BFD_RELOC_NS32K_IMM_32,
1448   BFD_RELOC_NS32K_IMM_8_PCREL,
1449   BFD_RELOC_NS32K_IMM_16_PCREL,
1450   BFD_RELOC_NS32K_IMM_32_PCREL,
1451   BFD_RELOC_NS32K_DISP_8,
1452   BFD_RELOC_NS32K_DISP_16,
1453   BFD_RELOC_NS32K_DISP_32,
1454   BFD_RELOC_NS32K_DISP_8_PCREL,
1455   BFD_RELOC_NS32K_DISP_16_PCREL,
1456   BFD_RELOC_NS32K_DISP_32_PCREL,
1457
1458    /* PowerPC/POWER (RS/6000) relocs.  */
1459    /* 26 bit relative branch.  Low two bits must be zero.  High 24
1460      bits installed in bits 6 through 29 of instruction.  */
1461   BFD_RELOC_PPC_B26,
1462    /* 26 bit absolute branch, like BFD_RELOC_PPC_B26 but absolute.  */
1463   BFD_RELOC_PPC_BA26,
1464    /* 16 bit TOC relative reference.  */
1465   BFD_RELOC_PPC_TOC16,
1466
1467    /* this must be the highest numeric value */
1468   BFD_RELOC_UNUSED
1469  } bfd_reloc_code_real_type;
1470 const struct reloc_howto_struct *
1471
1472 bfd_reloc_type_lookup  PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
1473
1474
1475 typedef struct symbol_cache_entry
1476 {
1477          /* A pointer to the BFD which owns the symbol. This information
1478            is necessary so that a back end can work out what additional
1479            information (invisible to the application writer) is carried
1480            with the symbol.
1481
1482            This field is *almost* redundant, since you can use section->owner
1483            instead, except that some symbols point to the global sections
1484            bfd_{abs,com,und}_section.  This could be fixed by making
1485            these globals be per-bfd (or per-target-flavor).  FIXME. */
1486
1487   struct _bfd *the_bfd;  /* Use bfd_asymbol_bfd(sym) to access this field. */
1488
1489          /* The text of the symbol. The name is left alone, and not copied; the
1490            application may not alter it. */
1491   CONST char *name;
1492
1493          /* The value of the symbol.  This really should be a union of a
1494           numeric value with a pointer, since some flags indicate that
1495           a pointer to another symbol is stored here.  */
1496   symvalue value;
1497
1498          /* Attributes of a symbol: */
1499
1500 #define BSF_NO_FLAGS    0x00
1501
1502          /* The symbol has local scope; <<static>> in <<C>>. The value
1503            is the offset into the section of the data. */
1504 #define BSF_LOCAL       0x01
1505
1506          /* The symbol has global scope; initialized data in <<C>>. The
1507            value is the offset into the section of the data. */
1508 #define BSF_GLOBAL      0x02
1509
1510          /* The symbol has global scope and is exported. The value is
1511            the offset into the section of the data. */
1512 #define BSF_EXPORT      BSF_GLOBAL  /* no real difference */
1513
1514          /* A normal C symbol would be one of:
1515            <<BSF_LOCAL>>, <<BSF_FORT_COMM>>,  <<BSF_UNDEFINED>> or
1516            <<BSF_GLOBAL>> */
1517
1518          /* The symbol is a debugging record. The value has an arbitary
1519            meaning. */
1520 #define BSF_DEBUGGING   0x08
1521
1522          /* The symbol denotes a function entry point.  Used in ELF,
1523            perhaps others someday.  */
1524 #define BSF_FUNCTION    0x10
1525
1526          /* Used by the linker. */
1527 #define BSF_KEEP        0x20
1528 #define BSF_KEEP_G      0x40
1529
1530          /* A weak global symbol, overridable without warnings by
1531            a regular global symbol of the same name.  */
1532 #define BSF_WEAK        0x80
1533
1534         /* This symbol was created to point to a section, e.g. ELF's
1535            STT_SECTION symbols.  */
1536 #define BSF_SECTION_SYM 0x100
1537
1538          /* The symbol used to be a common symbol, but now it is
1539            allocated. */
1540 #define BSF_OLD_COMMON  0x200
1541
1542          /* The default value for common data. */
1543 #define BFD_FORT_COMM_DEFAULT_VALUE 0
1544
1545          /* In some files the type of a symbol sometimes alters its
1546            location in an output file - ie in coff a <<ISFCN>> symbol
1547            which is also <<C_EXT>> symbol appears where it was
1548            declared and not at the end of a section.  This bit is set
1549            by the target BFD part to convey this information. */
1550
1551 #define BSF_NOT_AT_END    0x400
1552
1553          /* Signal that the symbol is the label of constructor section. */
1554 #define BSF_CONSTRUCTOR   0x800
1555
1556          /* Signal that the symbol is a warning symbol. If the symbol
1557            is a warning symbol, then the value field (I know this is
1558            tacky) will point to the asymbol which when referenced will
1559            cause the warning. */
1560 #define BSF_WARNING       0x1000
1561
1562          /* Signal that the symbol is indirect. The value of the symbol
1563            is a pointer to an undefined asymbol which contains the
1564            name to use instead. */
1565 #define BSF_INDIRECT      0x2000
1566
1567          /* BSF_FILE marks symbols that contain a file name.  This is used
1568            for ELF STT_FILE symbols.  */
1569 #define BSF_FILE          0x4000
1570
1571          /* Symbol is from dynamic linking information.  */
1572 #define BSF_DYNAMIC        0x8000
1573
1574   flagword flags;
1575
1576          /* A pointer to the section to which this symbol is
1577            relative.  This will always be non NULL, there are special
1578           sections for undefined and absolute symbols */
1579   struct sec *section;
1580
1581          /* Back end special data. This is being phased out in favour
1582            of making this a union. */
1583   PTR udata;
1584
1585 } asymbol;
1586 #define bfd_get_symtab_upper_bound(abfd) \
1587      BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd))
1588 boolean
1589 bfd_is_local_label PARAMS ((bfd *abfd, asymbol *sym));
1590
1591 #define bfd_is_local_label(abfd, sym) \
1592      BFD_SEND (abfd, _bfd_is_local_label,(abfd, sym))
1593 #define bfd_canonicalize_symtab(abfd, location) \
1594      BFD_SEND (abfd, _bfd_canonicalize_symtab,\
1595                   (abfd, location))
1596 boolean
1597 bfd_set_symtab  PARAMS ((bfd *abfd, asymbol **location, unsigned int count));
1598
1599 void
1600 bfd_print_symbol_vandf PARAMS ((PTR file, asymbol *symbol));
1601
1602 #define bfd_make_empty_symbol(abfd) \
1603      BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
1604 #define bfd_make_debug_symbol(abfd,ptr,size) \
1605         BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
1606 int
1607 bfd_decode_symclass PARAMS ((asymbol *symbol));
1608
1609 void
1610 bfd_symbol_info PARAMS ((asymbol *symbol, symbol_info *ret));
1611
1612 struct _bfd
1613 {
1614      /* The filename the application opened the BFD with.  */
1615     CONST char *filename;
1616
1617      /* A pointer to the target jump table.             */
1618     const struct bfd_target *xvec;
1619
1620      /* To avoid dragging too many header files into every file that
1621        includes `<<bfd.h>>', IOSTREAM has been declared as a "char
1622        *", and MTIME as a "long".  Their correct types, to which they
1623        are cast when used, are "FILE *" and "time_t".    The iostream
1624        is the result of an fopen on the filename. */
1625     char *iostream;
1626
1627      /* Is the file descriptor being cached?  That is, can it be closed as
1628        needed, and re-opened when accessed later?  */
1629
1630     boolean cacheable;
1631
1632      /* Marks whether there was a default target specified when the
1633        BFD was opened. This is used to select which matching algorithm
1634        to use to choose the back end. */
1635
1636     boolean target_defaulted;
1637
1638      /* The caching routines use these to maintain a
1639        least-recently-used list of BFDs */
1640
1641     struct _bfd *lru_prev, *lru_next;
1642
1643      /* When a file is closed by the caching routines, BFD retains
1644        state information on the file here: */
1645
1646     file_ptr where;
1647
1648      /* and here: (``once'' means at least once) */
1649
1650     boolean opened_once;
1651
1652      /* Set if we have a locally maintained mtime value, rather than
1653        getting it from the file each time: */
1654
1655     boolean mtime_set;
1656
1657      /* File modified time, if mtime_set is true: */
1658
1659     long mtime;
1660
1661      /* Reserved for an unimplemented file locking extension.*/
1662
1663     int ifd;
1664
1665      /* The format which belongs to the BFD. (object, core, etc.) */
1666
1667     bfd_format format;
1668
1669      /* The direction the BFD was opened with*/
1670
1671     enum bfd_direction {no_direction = 0,
1672                         read_direction = 1,
1673                         write_direction = 2,
1674                         both_direction = 3} direction;
1675
1676      /* Format_specific flags*/
1677
1678     flagword flags;
1679
1680      /* Currently my_archive is tested before adding origin to
1681        anything. I believe that this can become always an add of
1682        origin, with origin set to 0 for non archive files.   */
1683
1684     file_ptr origin;
1685
1686      /* Remember when output has begun, to stop strange things
1687        from happening. */
1688     boolean output_has_begun;
1689
1690      /* Pointer to linked list of sections*/
1691     struct sec  *sections;
1692
1693      /* The number of sections */
1694     unsigned int section_count;
1695
1696      /* Stuff only useful for object files:
1697        The start address. */
1698     bfd_vma start_address;
1699
1700      /* Used for input and output*/
1701     unsigned int symcount;
1702
1703      /* Symbol table for output BFD (with symcount entries) */
1704     struct symbol_cache_entry  **outsymbols;
1705
1706      /* Pointer to structure which contains architecture information*/
1707     struct bfd_arch_info *arch_info;
1708
1709      /* Stuff only useful for archives:*/
1710     PTR arelt_data;
1711     struct _bfd *my_archive;      /* The containing archive BFD.  */
1712     struct _bfd *next;            /* The next BFD in the archive.  */
1713     struct _bfd *archive_head;    /* The first BFD in the archive.  */
1714     boolean has_armap;
1715
1716      /* A chain of BFD structures involved in a link.  */
1717     struct _bfd *link_next;
1718
1719      /* A field used by _bfd_generic_link_add_archive_symbols.  This will
1720        be used only for archive elements.  */
1721     int archive_pass;
1722
1723      /* Used by the back end to hold private data. */
1724
1725     union
1726       {
1727       struct aout_data_struct *aout_data;
1728       struct artdata *aout_ar_data;
1729       struct _oasys_data *oasys_obj_data;
1730       struct _oasys_ar_data *oasys_ar_data;
1731       struct coff_tdata *coff_obj_data;
1732       struct ecoff_tdata *ecoff_obj_data;
1733       struct ieee_data_struct *ieee_data;
1734       struct ieee_ar_data_struct *ieee_ar_data;
1735       struct srec_data_struct *srec_data;
1736       struct tekhex_data_struct *tekhex_data;
1737       struct elf_obj_tdata *elf_obj_data;
1738       struct nlm_obj_tdata *nlm_obj_data;
1739       struct bout_data_struct *bout_data;
1740       struct sun_core_struct *sun_core_data;
1741       struct trad_core_struct *trad_core_data;
1742       struct som_data_struct *som_data;
1743       struct hpux_core_struct *hpux_core_data;
1744       struct hppabsd_core_struct *hppabsd_core_data;
1745       struct sgi_core_struct *sgi_core_data;
1746       struct lynx_core_struct *lynx_core_data;
1747       struct osf_core_struct *osf_core_data;
1748       struct cisco_core_struct *cisco_core_data;
1749       PTR any;
1750       } tdata;
1751
1752      /* Used by the application to hold private data*/
1753     PTR usrdata;
1754
1755      /* Where all the allocated stuff under this BFD goes */
1756     struct obstack memory;
1757 };
1758
1759 typedef enum bfd_error
1760 {
1761   bfd_error_no_error = 0,
1762   bfd_error_system_call,
1763   bfd_error_invalid_target,
1764   bfd_error_wrong_format,
1765   bfd_error_invalid_operation,
1766   bfd_error_no_memory,
1767   bfd_error_no_symbols,
1768   bfd_error_no_more_archived_files,
1769   bfd_error_malformed_archive,
1770   bfd_error_file_not_recognized,
1771   bfd_error_file_ambiguously_recognized,
1772   bfd_error_no_contents,
1773   bfd_error_nonrepresentable_section,
1774   bfd_error_no_debug_section,
1775   bfd_error_bad_value,
1776   bfd_error_file_truncated,
1777   bfd_error_invalid_error_code
1778 } bfd_error_type;
1779
1780 bfd_error_type
1781 bfd_get_error  PARAMS ((void));
1782
1783 void
1784 bfd_set_error  PARAMS ((bfd_error_type error_tag));
1785
1786 CONST char *
1787 bfd_errmsg  PARAMS ((bfd_error_type error_tag));
1788
1789 void
1790 bfd_perror  PARAMS ((CONST char *message));
1791
1792 long
1793 bfd_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
1794
1795 long
1796 bfd_canonicalize_reloc
1797  PARAMS ((bfd *abfd,
1798     asection *sec,
1799     arelent **loc,
1800     asymbol     **syms));
1801
1802 void
1803 bfd_set_reloc
1804  PARAMS ((bfd *abfd, asection *sec, arelent **rel, unsigned int count)
1805
1806     );
1807
1808 boolean
1809 bfd_set_file_flags PARAMS ((bfd *abfd, flagword flags));
1810
1811 boolean
1812 bfd_set_start_address PARAMS ((bfd *abfd, bfd_vma vma));
1813
1814 long
1815 bfd_get_mtime PARAMS ((bfd *abfd));
1816
1817 long
1818 bfd_get_size PARAMS ((bfd *abfd));
1819
1820 int
1821 bfd_get_gp_size PARAMS ((bfd *abfd));
1822
1823 void
1824 bfd_set_gp_size PARAMS ((bfd *abfd, int i));
1825
1826 bfd_vma
1827 bfd_scan_vma PARAMS ((CONST char *string, CONST char **end, int base));
1828
1829 boolean
1830 bfd_copy_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
1831
1832 #define bfd_copy_private_bfd_data(ibfd, obfd) \
1833      BFD_SEND (ibfd, _bfd_copy_private_bfd_data, \
1834                 (ibfd, obfd))
1835 #define bfd_sizeof_headers(abfd, reloc) \
1836      BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
1837
1838 #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
1839      BFD_SEND (abfd, _bfd_find_nearest_line,  (abfd, sec, syms, off, file, func, line))
1840
1841         /* Do these three do anything useful at all, for any back end?  */
1842 #define bfd_debug_info_start(abfd) \
1843         BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
1844
1845 #define bfd_debug_info_end(abfd) \
1846         BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
1847
1848 #define bfd_debug_info_accumulate(abfd, section) \
1849         BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
1850
1851
1852 #define bfd_stat_arch_elt(abfd, stat) \
1853         BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
1854
1855 #define bfd_set_arch_mach(abfd, arch, mach)\
1856         BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
1857
1858 #define bfd_get_relocated_section_contents(abfd, link_info, link_order, data, relocateable, symbols) \
1859         BFD_SEND (abfd, _bfd_get_relocated_section_contents, \
1860                  (abfd, link_info, link_order, data, relocateable, symbols))
1861
1862 #define bfd_relax_section(abfd, section, link_info, again) \
1863        BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
1864
1865 #define bfd_link_hash_table_create(abfd) \
1866         BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
1867
1868 #define bfd_link_add_symbols(abfd, info) \
1869         BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
1870
1871 #define bfd_final_link(abfd, info) \
1872         BFD_SEND (abfd, _bfd_final_link, (abfd, info))
1873
1874 #define bfd_free_cached_info(abfd) \
1875        BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
1876
1877 #define bfd_get_dynamic_symtab_upper_bound(abfd) \
1878         BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
1879
1880 #define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
1881         BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
1882
1883 #define bfd_get_dynamic_reloc_upper_bound(abfd) \
1884         BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
1885
1886 #define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
1887         BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
1888
1889 symindex
1890 bfd_get_next_mapent PARAMS ((bfd *abfd, symindex previous, carsym **sym));
1891
1892 boolean
1893 bfd_set_archive_head PARAMS ((bfd *output, bfd *new_head));
1894
1895 bfd *
1896 bfd_get_elt_at_index PARAMS ((bfd *archive, int index));
1897
1898 bfd *
1899 bfd_openr_next_archived_file PARAMS ((bfd *archive, bfd *previous));
1900
1901 CONST char *
1902 bfd_core_file_failing_command PARAMS ((bfd *abfd));
1903
1904 int
1905 bfd_core_file_failing_signal PARAMS ((bfd *abfd));
1906
1907 boolean
1908 core_file_matches_executable_p
1909  PARAMS ((bfd *core_bfd, bfd *exec_bfd));
1910
1911 #define BFD_SEND(bfd, message, arglist) \
1912                ((*((bfd)->xvec->message)) arglist)
1913
1914 #ifdef DEBUG_BFD_SEND
1915 #undef BFD_SEND
1916 #define BFD_SEND(bfd, message, arglist) \
1917   (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
1918     ((*((bfd)->xvec->message)) arglist) : \
1919     (bfd_assert (__FILE__,__LINE__), NULL))
1920 #endif
1921 #define BFD_SEND_FMT(bfd, message, arglist) \
1922             (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
1923
1924 #ifdef DEBUG_BFD_SEND
1925 #undef BFD_SEND_FMT
1926 #define BFD_SEND_FMT(bfd, message, arglist) \
1927   (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
1928    (((bfd)->xvec->message[(int)((bfd)->format)]) arglist) : \
1929    (bfd_assert (__FILE__,__LINE__), NULL))
1930 #endif
1931 enum bfd_flavour {
1932   bfd_target_unknown_flavour,
1933   bfd_target_aout_flavour,
1934   bfd_target_coff_flavour,
1935   bfd_target_ecoff_flavour,
1936   bfd_target_elf_flavour,
1937   bfd_target_ieee_flavour,
1938   bfd_target_nlm_flavour,
1939   bfd_target_oasys_flavour,
1940   bfd_target_tekhex_flavour,
1941   bfd_target_srec_flavour,
1942   bfd_target_som_flavour,
1943   bfd_target_os9k_flavour};
1944
1945  /* Forward declaration.  */
1946 typedef struct bfd_link_info _bfd_link_info;
1947
1948 typedef struct bfd_target
1949 {
1950   char *name;
1951   enum bfd_flavour flavour;
1952   boolean byteorder_big_p;
1953   boolean header_byteorder_big_p;
1954   flagword object_flags;
1955   flagword section_flags;
1956   char symbol_leading_char;
1957   char ar_pad_char;
1958   unsigned short ar_max_namelen;
1959   unsigned int align_power_min;
1960   bfd_vma      (*bfd_getx64) PARAMS ((const bfd_byte *));
1961   bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *));
1962   void         (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
1963   bfd_vma      (*bfd_getx32) PARAMS ((const bfd_byte *));
1964   bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *));
1965   void         (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
1966   bfd_vma      (*bfd_getx16) PARAMS ((const bfd_byte *));
1967   bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *));
1968   void         (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
1969   bfd_vma      (*bfd_h_getx64) PARAMS ((const bfd_byte *));
1970   bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *));
1971   void         (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
1972   bfd_vma      (*bfd_h_getx32) PARAMS ((const bfd_byte *));
1973   bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *));
1974   void         (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
1975   bfd_vma      (*bfd_h_getx16) PARAMS ((const bfd_byte *));
1976   bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *));
1977   void         (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
1978   const struct bfd_target *(*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
1979   boolean             (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
1980   boolean             (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
1981
1982    /* Generic entry points.  */
1983 #define BFD_JUMP_TABLE_GENERIC(NAME)\
1984 CAT(NAME,_close_and_cleanup),\
1985 CAT(NAME,_bfd_free_cached_info),\
1986 CAT(NAME,_new_section_hook),\
1987 CAT(NAME,_get_section_contents)
1988    /* Called when the BFD is being closed to do any necessary cleanup.  */
1989   boolean       (*_close_and_cleanup) PARAMS ((bfd *));
1990    /* Ask the BFD to free all cached information.  */
1991   boolean (*_bfd_free_cached_info) PARAMS ((bfd *));
1992    /* Called when a new section is created.  */
1993   boolean       (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
1994    /* Read the contents of a section.  */
1995   boolean       (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
1996                                             file_ptr, bfd_size_type));
1997
1998    /* Entry points to copy private data.  */
1999 #define BFD_JUMP_TABLE_COPY(NAME)\
2000 CAT(NAME,_bfd_copy_private_bfd_data),\
2001 CAT(NAME,_bfd_copy_private_section_data)
2002    /* Called to copy BFD general private data from one object file
2003      to another.  */
2004   boolean        (*_bfd_copy_private_bfd_data) PARAMS ((bfd *, bfd *));
2005    /* Called to copy BFD private section data from one object file
2006      to another.  */
2007   boolean       (*_bfd_copy_private_section_data) PARAMS ((bfd *, sec_ptr,
2008                                                        bfd *, sec_ptr));
2009
2010    /* Core file entry points.  */
2011 #define BFD_JUMP_TABLE_CORE(NAME)\
2012 CAT(NAME,_core_file_failing_command),\
2013 CAT(NAME,_core_file_failing_signal),\
2014 CAT(NAME,_core_file_matches_executable_p)
2015   char *   (*_core_file_failing_command) PARAMS ((bfd *));
2016   int      (*_core_file_failing_signal) PARAMS ((bfd *));
2017   boolean  (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
2018
2019    /* Archive entry points.  */
2020 #define BFD_JUMP_TABLE_ARCHIVE(NAME)\
2021 CAT(NAME,_slurp_armap),\
2022 CAT(NAME,_slurp_extended_name_table),\
2023 CAT(NAME,_truncate_arname),\
2024 CAT(NAME,_write_armap),\
2025 CAT(NAME,_openr_next_archived_file),\
2026 CAT(NAME,_generic_stat_arch_elt)
2027   boolean  (*_bfd_slurp_armap) PARAMS ((bfd *));
2028   boolean  (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
2029   void     (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
2030   boolean  (*write_armap) PARAMS ((bfd *arch,
2031                               unsigned int elength,
2032                               struct orl *map,
2033                               unsigned int orl_count,
2034                               int stridx));
2035   bfd *      (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
2036   int        (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
2037
2038    /* Entry points used for symbols.  */
2039 #define BFD_JUMP_TABLE_SYMBOLS(NAME)\
2040 CAT(NAME,_get_symtab_upper_bound),\
2041 CAT(NAME,_get_symtab),\
2042 CAT(NAME,_make_empty_symbol),\
2043 CAT(NAME,_print_symbol),\
2044 CAT(NAME,_get_symbol_info),\
2045 CAT(NAME,_bfd_is_local_label),\
2046 CAT(NAME,_get_lineno),\
2047 CAT(NAME,_find_nearest_line),\
2048 CAT(NAME,_bfd_make_debug_symbol)
2049   long  (*_bfd_get_symtab_upper_bound) PARAMS ((bfd *));
2050   long  (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
2051                                              struct symbol_cache_entry **));
2052   struct symbol_cache_entry  *
2053                 (*_bfd_make_empty_symbol) PARAMS ((bfd *));
2054   void          (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
2055                                       struct symbol_cache_entry *,
2056                                       bfd_print_symbol_type));
2057 #define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
2058   void          (*_bfd_get_symbol_info) PARAMS ((bfd *,
2059                                       struct symbol_cache_entry *,
2060                                       symbol_info *));
2061 #define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
2062   boolean        (*_bfd_is_local_label) PARAMS ((bfd *, asymbol *));
2063
2064   alent *    (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
2065   boolean    (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
2066                     struct sec *section, struct symbol_cache_entry **symbols,
2067                     bfd_vma offset, CONST char **file, CONST char **func,
2068                     unsigned int *line));
2069   /* Back-door to allow format-aware applications to create debug symbols
2070     while using BFD for everything else.  Currently used by the assembler
2071     when creating COFF files.  */
2072  asymbol *  (*_bfd_make_debug_symbol) PARAMS ((
2073        bfd *abfd,
2074        void *ptr,
2075        unsigned long size));
2076
2077    /* Routines for relocs.  */
2078 #define BFD_JUMP_TABLE_RELOCS(NAME)\
2079 CAT(NAME,_get_reloc_upper_bound),\
2080 CAT(NAME,_canonicalize_reloc),\
2081 CAT(NAME,_bfd_reloc_type_lookup)
2082   long  (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
2083   long  (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
2084                                             struct symbol_cache_entry **));
2085    /* See documentation on reloc types.  */
2086   CONST struct reloc_howto_struct *
2087        (*reloc_type_lookup) PARAMS ((bfd *abfd,
2088                                      bfd_reloc_code_real_type code));
2089
2090    /* Routines used when writing an object file.  */
2091 #define BFD_JUMP_TABLE_WRITE(NAME)\
2092 CAT(NAME,_set_arch_mach),\
2093 CAT(NAME,_set_section_contents)
2094   boolean    (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
2095                     unsigned long));
2096   boolean       (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
2097                                             file_ptr, bfd_size_type));
2098
2099    /* Routines used by the linker.  */
2100 #define BFD_JUMP_TABLE_LINK(NAME)\
2101 CAT(NAME,_sizeof_headers),\
2102 CAT(NAME,_bfd_get_relocated_section_contents),\
2103 CAT(NAME,_bfd_relax_section),\
2104 CAT(NAME,_bfd_link_hash_table_create),\
2105 CAT(NAME,_bfd_link_add_symbols),\
2106 CAT(NAME,_bfd_final_link)
2107   int        (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
2108   bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
2109                     struct bfd_link_info *, struct bfd_link_order *,
2110                     bfd_byte *data, boolean relocateable,
2111                     struct symbol_cache_entry **));
2112
2113   boolean    (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
2114                     struct bfd_link_info *, boolean *again));
2115
2116    /* Create a hash table for the linker.  Different backends store
2117      different information in this table.  */
2118   struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *));
2119
2120    /* Add symbols from this object file into the hash table.  */
2121   boolean (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
2122
2123    /* Do a link based on the link_order structures attached to each
2124      section of the BFD.  */
2125   boolean (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *));
2126
2127   /* Routines to handle dynamic symbols and relocs.  */
2128 #define BFD_JUMP_TABLE_DYNAMIC(NAME)\
2129 CAT(NAME,_get_dynamic_symtab_upper_bound),\
2130 CAT(NAME,_canonicalize_dynamic_symtab),\
2131 CAT(NAME,_get_dynamic_reloc_upper_bound),\
2132 CAT(NAME,_canonicalize_dynamic_reloc)
2133    /* Get the amount of memory required to hold the dynamic symbols. */
2134   long  (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *));
2135    /* Read in the dynamic symbols.  */
2136   long  (*_bfd_canonicalize_dynamic_symtab)
2137     PARAMS ((bfd *, struct symbol_cache_entry **));
2138    /* Get the amount of memory required to hold the dynamic relocs.  */
2139   long  (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *));
2140    /* Read in the dynamic relocs.  */
2141   long  (*_bfd_canonicalize_dynamic_reloc)
2142     PARAMS ((bfd *, arelent **, struct symbol_cache_entry **));
2143
2144  PTR backend_data;
2145 } bfd_target;
2146 const bfd_target *
2147 bfd_find_target PARAMS ((CONST char *target_name, bfd *abfd));
2148
2149 const char **
2150 bfd_target_list PARAMS ((void));
2151
2152 boolean
2153 bfd_check_format PARAMS ((bfd *abfd, bfd_format format));
2154
2155 boolean
2156 bfd_check_format_matches PARAMS ((bfd *abfd, bfd_format format, char ***matching));
2157
2158 boolean
2159 bfd_set_format PARAMS ((bfd *abfd, bfd_format format));
2160
2161 CONST char *
2162 bfd_format_string PARAMS ((bfd_format format));
2163
2164 #endif