bfd/bfd-in.h

   1 /* Main header file for the bfd library -- portable access to object files.
   2
   3    Copyright (C) 1990-2014 Free Software Foundation, Inc.
   4
   5    Contributed by Cygnus Support.
   6
   7    This file is part of BFD, the Binary File Descriptor library.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  22
  23 #ifndef __BFD_H_SEEN__
  24 #define __BFD_H_SEEN__
  25
  26 /* PR 14072: Ensure that config.h is included first.  */
  27 #if !defined PACKAGE && !defined PACKAGE_VERSION
  28 #error config.h must be included before this header
  29 #endif
  30
  31 #ifdef __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 #include "ansidecl.h"
  36 #include "symcat.h"
  37 #include <sys/stat.h>
  38
  39 #if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
  40 #ifndef SABER
  41 /* This hack is to avoid a problem with some strict ANSI C preprocessors.
  42    The problem is, "32_" is not a valid preprocessing token, and we don't
  43    want extra underscores (e.g., "nlm_32_").  The XCONCAT2 macro will
  44    cause the inner CONCAT2 macros to be evaluated first, producing
  45    still-valid pp-tokens.  Then the final concatenation can be done.  */
  46 #undef CONCAT4
  47 #define CONCAT4(a,b,c,d) XCONCAT2(CONCAT2(a,b),CONCAT2(c,d))
  48 #endif
  49 #endif
  50
  51 /* This is a utility macro to handle the situation where the code
  52    wants to place a constant string into the code, followed by a
  53    comma and then the length of the string.  Doing this by hand
  54    is error prone, so using this macro is safer.  */
  55 #define STRING_COMMA_LEN(STR) (STR), (sizeof (STR) - 1)
  56 /* Unfortunately it is not possible to use the STRING_COMMA_LEN macro
  57    to create the arguments to another macro, since the preprocessor
  58    will mis-count the number of arguments to the outer macro (by not
  59    evaluating STRING_COMMA_LEN and so missing the comma).  This is a
  60    problem for example when trying to use STRING_COMMA_LEN to build
  61    the arguments to the strncmp() macro.  Hence this alternative
  62    definition of strncmp is provided here.
  63
  64    Note - these macros do NOT work if STR2 is not a constant string.  */
  65 #define CONST_STRNEQ(STR1,STR2) (strncmp ((STR1), (STR2), sizeof (STR2) - 1) == 0)
  66   /* strcpy() can have a similar problem, but since we know we are
  67      copying a constant string, we can use memcpy which will be faster
  68      since there is no need to check for a NUL byte inside STR.  We
  69      can also save time if we do not need to copy the terminating NUL.  */
  70 #define LITMEMCPY(DEST,STR2) memcpy ((DEST), (STR2), sizeof (STR2) - 1)
  71 #define LITSTRCPY(DEST,STR2) memcpy ((DEST), (STR2), sizeof (STR2))
  72
  73
  74 #define BFD_SUPPORTS_PLUGINS @supports_plugins@
  75
  76 /* The word size used by BFD on the host.  This may be 64 with a 32
  77    bit target if the host is 64 bit, or if other 64 bit targets have
  78    been selected with --enable-targets, or if --enable-64-bit-bfd.  */
  79 #define BFD_ARCH_SIZE @wordsize@
  80
  81 /* The word size of the default bfd target.  */
  82 #define BFD_DEFAULT_TARGET_SIZE @bfd_default_target_size@
  83
  84 #define BFD_HOST_64BIT_LONG @BFD_HOST_64BIT_LONG@
  85 #define BFD_HOST_64BIT_LONG_LONG @BFD_HOST_64BIT_LONG_LONG@
  86 #if @BFD_HOST_64_BIT_DEFINED@
  87 #define BFD_HOST_64_BIT @BFD_HOST_64_BIT@
  88 #define BFD_HOST_U_64_BIT @BFD_HOST_U_64_BIT@
  89 typedef BFD_HOST_64_BIT bfd_int64_t;
  90 typedef BFD_HOST_U_64_BIT bfd_uint64_t;
  91 #endif
  92
  93 #if BFD_ARCH_SIZE >= 64
  94 #define BFD64
  95 #endif
  96
  97 #ifndef INLINE
  98 #if __GNUC__ >= 2
  99 #define INLINE __inline__
 100 #else
 101 #define INLINE
 102 #endif
 103 #endif
 104
 105 /* Declaring a type wide enough to hold a host long and a host pointer.  */
 106 #define BFD_HOSTPTR_T   @BFD_HOSTPTR_T@
 107 typedef BFD_HOSTPTR_T bfd_hostptr_t;
 108
 109 /* Forward declaration.  */
 110 typedef struct bfd bfd;
 111
 112 /* Boolean type used in bfd.  Too many systems define their own
 113    versions of "boolean" for us to safely typedef a "boolean" of
 114    our own.  Using an enum for "bfd_boolean" has its own set of
 115    problems, with strange looking casts required to avoid warnings
 116    on some older compilers.  Thus we just use an int.
 117
 118    General rule: Functions which are bfd_boolean return TRUE on
 119    success and FALSE on failure (unless they're a predicate).  */
 120
 121 typedef int bfd_boolean;
 122 #undef FALSE
 123 #undef TRUE
 124 #define FALSE 0
 125 #define TRUE 1
 126
 127 #ifdef BFD64
 128
 129 #ifndef BFD_HOST_64_BIT
 130  #error No 64 bit integer type available
 131 #endif /* ! defined (BFD_HOST_64_BIT) */
 132
 133 typedef BFD_HOST_U_64_BIT bfd_vma;
 134 typedef BFD_HOST_64_BIT bfd_signed_vma;
 135 typedef BFD_HOST_U_64_BIT bfd_size_type;
 136 typedef BFD_HOST_U_64_BIT symvalue;
 137
 138 #if BFD_HOST_64BIT_LONG
 139 #define BFD_VMA_FMT "l"
 140 #elif defined (__MSVCRT__)
 141 #define BFD_VMA_FMT "I64"
 142 #else
 143 #define BFD_VMA_FMT "ll"
 144 #endif
 145
 146 #ifndef fprintf_vma
 147 #define sprintf_vma(s,x) sprintf (s, "%016" BFD_VMA_FMT "x", x)
 148 #define fprintf_vma(f,x) fprintf (f, "%016" BFD_VMA_FMT "x", x)
 149 #endif
 150
 151 #else /* not BFD64  */
 152
 153 /* Represent a target address.  Also used as a generic unsigned type
 154    which is guaranteed to be big enough to hold any arithmetic types
 155    we need to deal with.  */
 156 typedef unsigned long bfd_vma;
 157
 158 /* A generic signed type which is guaranteed to be big enough to hold any
 159    arithmetic types we need to deal with.  Can be assumed to be compatible
 160    with bfd_vma in the same way that signed and unsigned ints are compatible
 161    (as parameters, in assignment, etc).  */
 162 typedef long bfd_signed_vma;
 163
 164 typedef unsigned long symvalue;
 165 typedef unsigned long bfd_size_type;
 166
 167 /* Print a bfd_vma x on stream s.  */
 168 #define BFD_VMA_FMT "l"
 169 #define fprintf_vma(s,x) fprintf (s, "%08" BFD_VMA_FMT "x", x)
 170 #define sprintf_vma(s,x) sprintf (s, "%08" BFD_VMA_FMT "x", x)
 171
 172 #endif /* not BFD64  */
 173
 174 #define HALF_BFD_SIZE_TYPE \
 175   (((bfd_size_type) 1) << (8 * sizeof (bfd_size_type) / 2))
 176
 177 #ifndef BFD_HOST_64_BIT
 178 /* Fall back on a 32 bit type.  The idea is to make these types always
 179    available for function return types, but in the case that
 180    BFD_HOST_64_BIT is undefined such a function should abort or
 181    otherwise signal an error.  */
 182 typedef bfd_signed_vma bfd_int64_t;
 183 typedef bfd_vma bfd_uint64_t;
 184 #endif
 185
 186 /* An offset into a file.  BFD always uses the largest possible offset
 187    based on the build time availability of fseek, fseeko, or fseeko64.  */
 188 typedef @bfd_file_ptr@ file_ptr;
 189 typedef unsigned @bfd_file_ptr@ ufile_ptr;
 190
 191 extern void bfd_sprintf_vma (bfd *, char *, bfd_vma);
 192 extern void bfd_fprintf_vma (bfd *, void *, bfd_vma);
 193
 194 #define printf_vma(x) fprintf_vma(stdout,x)
 195 #define bfd_printf_vma(abfd,x) bfd_fprintf_vma (abfd,stdout,x)
 196
 197 typedef unsigned int flagword;  /* 32 bits of flags */
 198 typedef unsigned char bfd_byte;
 199 \f
 200 /* File formats.  */
 201
 202 typedef enum bfd_format
 203 {
 204   bfd_unknown = 0,      /* File format is unknown.  */
 205   bfd_object,           /* Linker/assembler/compiler output.  */
 206   bfd_archive,          /* Object archive file.  */
 207   bfd_core,             /* Core dump.  */
 208   bfd_type_end          /* Marks the end; don't use it!  */
 209 }
 210 bfd_format;
 211 \f
 212 /* Symbols and relocation.  */
 213
 214 /* A count of carsyms (canonical archive symbols).  */
 215 typedef unsigned long symindex;
 216
 217 /* How to perform a relocation.  */
 218 typedef const struct reloc_howto_struct reloc_howto_type;
 219
 220 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
 221
 222 /* General purpose part of a symbol X;
 223    target specific parts are in libcoff.h, libaout.h, etc.  */
 224
 225 #define bfd_get_section(x) ((x)->section)
 226 #define bfd_get_output_section(x) ((x)->section->output_section)
 227 #define bfd_set_section(x,y) ((x)->section) = (y)
 228 #define bfd_asymbol_base(x) ((x)->section->vma)
 229 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
 230 #define bfd_asymbol_name(x) ((x)->name)
 231 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
 232 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
 233 #define bfd_asymbol_flavour(x)                  \
 234   (((x)->flags & BSF_SYNTHETIC) != 0            \
 235    ? bfd_target_unknown_flavour                 \
 236    : bfd_asymbol_bfd (x)->xvec->flavour)
 237
 238 /* A canonical archive symbol.  */
 239 /* This is a type pun with struct ranlib on purpose!  */
 240 typedef struct carsym
 241 {
 242   char *name;
 243   file_ptr file_offset; /* Look here to find the file.  */
 244 }
 245 carsym;                 /* To make these you call a carsymogen.  */
 246
 247 /* Used in generating armaps (archive tables of contents).
 248    Perhaps just a forward definition would do?  */
 249 struct orl                      /* Output ranlib.  */
 250 {
 251   char **name;          /* Symbol name.  */
 252   union
 253   {
 254     file_ptr pos;
 255     bfd *abfd;
 256   } u;                  /* bfd* or file position.  */
 257   int namidx;           /* Index into string table.  */
 258 };
 259 \f
 260 /* Linenumber stuff.  */
 261 typedef struct lineno_cache_entry
 262 {
 263   unsigned int line_number;     /* Linenumber from start of function.  */
 264   union
 265   {
 266     struct bfd_symbol *sym;     /* Function name.  */
 267     bfd_vma offset;                     /* Offset into section.  */
 268   } u;
 269 }
 270 alent;
 271 \f
 272 /* Object and core file sections.  */
 273
 274 #define align_power(addr, align)        \
 275   (((addr) + ((bfd_vma) 1 << (align)) - 1) & ((bfd_vma) -1 << (align)))
 276
 277 typedef struct bfd_section *sec_ptr;
 278
 279 #define bfd_get_section_name(bfd, ptr) ((void) bfd, (ptr)->name)
 280 #define bfd_get_section_vma(bfd, ptr) ((void) bfd, (ptr)->vma)
 281 #define bfd_get_section_lma(bfd, ptr) ((void) bfd, (ptr)->lma)
 282 #define bfd_get_section_alignment(bfd, ptr) ((void) bfd, \
 283                                              (ptr)->alignment_power)
 284 #define bfd_section_name(bfd, ptr) ((ptr)->name)
 285 #define bfd_section_size(bfd, ptr) ((ptr)->size)
 286 #define bfd_get_section_size(ptr) ((ptr)->size)
 287 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
 288 #define bfd_section_lma(bfd, ptr) ((ptr)->lma)
 289 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
 290 #define bfd_get_section_flags(bfd, ptr) ((void) bfd, (ptr)->flags)
 291 #define bfd_get_section_userdata(bfd, ptr) ((void) bfd, (ptr)->userdata)
 292
 293 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
 294
 295 /* Find the address one past the end of SEC.  */
 296 #define bfd_get_section_limit(bfd, sec) \
 297   (((bfd)->direction != write_direction && (sec)->rawsize != 0  \
 298     ? (sec)->rawsize : (sec)->size) / bfd_octets_per_byte (bfd))
 299
 300 /* Return TRUE if input section SEC has been discarded.  */
 301 #define discarded_section(sec)                          \
 302   (!bfd_is_abs_section (sec)                                    \
 303    && bfd_is_abs_section ((sec)->output_section)                \
 304    && (sec)->sec_info_type != SEC_INFO_TYPE_MERGE               \
 305    && (sec)->sec_info_type != SEC_INFO_TYPE_JUST_SYMS)
 306 \f
 307 typedef enum bfd_print_symbol
 308 {
 309   bfd_print_symbol_name,
 310   bfd_print_symbol_more,
 311   bfd_print_symbol_all
 312 } bfd_print_symbol_type;
 313
 314 /* Information about a symbol that nm needs.  */
 315
 316 typedef struct _symbol_info
 317 {
 318   symvalue value;
 319   char type;
 320   const char *name;            /* Symbol name.  */
 321   unsigned char stab_type;     /* Stab type.  */
 322   char stab_other;             /* Stab other.  */
 323   short stab_desc;             /* Stab desc.  */
 324   const char *stab_name;       /* String for stab type.  */
 325 } symbol_info;
 326
 327 /* Get the name of a stabs type code.  */
 328
 329 extern const char *bfd_get_stab_name (int);
 330 \f
 331 /* Hash table routines.  There is no way to free up a hash table.  */
 332
 333 /* An element in the hash table.  Most uses will actually use a larger
 334    structure, and an instance of this will be the first field.  */
 335
 336 struct bfd_hash_entry
 337 {
 338   /* Next entry for this hash code.  */
 339   struct bfd_hash_entry *next;
 340   /* String being hashed.  */
 341   const char *string;
 342   /* Hash code.  This is the full hash code, not the index into the
 343      table.  */
 344   unsigned long hash;
 345 };
 346
 347 /* A hash table.  */
 348
 349 struct bfd_hash_table
 350 {
 351   /* The hash array.  */
 352   struct bfd_hash_entry **table;
 353   /* A function used to create new elements in the hash table.  The
 354      first entry is itself a pointer to an element.  When this
 355      function is first invoked, this pointer will be NULL.  However,
 356      having the pointer permits a hierarchy of method functions to be
 357      built each of which calls the function in the superclass.  Thus
 358      each function should be written to allocate a new block of memory
 359      only if the argument is NULL.  */
 360   struct bfd_hash_entry *(*newfunc)
 361     (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
 362    /* An objalloc for this hash table.  This is a struct objalloc *,
 363      but we use void * to avoid requiring the inclusion of objalloc.h.  */
 364   void *memory;
 365   /* The number of slots in the hash table.  */
 366   unsigned int size;
 367   /* The number of entries in the hash table.  */
 368   unsigned int count;
 369   /* The size of elements.  */
 370   unsigned int entsize;
 371   /* If non-zero, don't grow the hash table.  */
 372   unsigned int frozen:1;
 373 };
 374
 375 /* Initialize a hash table.  */
 376 extern bfd_boolean bfd_hash_table_init
 377   (struct bfd_hash_table *,
 378    struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 379                                struct bfd_hash_table *,
 380                                const char *),
 381    unsigned int);
 382
 383 /* Initialize a hash table specifying a size.  */
 384 extern bfd_boolean bfd_hash_table_init_n
 385   (struct bfd_hash_table *,
 386    struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 387                                struct bfd_hash_table *,
 388                                const char *),
 389    unsigned int, unsigned int);
 390
 391 /* Free up a hash table.  */
 392 extern void bfd_hash_table_free
 393   (struct bfd_hash_table *);
 394
 395 /* Look up a string in a hash table.  If CREATE is TRUE, a new entry
 396    will be created for this string if one does not already exist.  The
 397    COPY argument must be TRUE if this routine should copy the string
 398    into newly allocated memory when adding an entry.  */
 399 extern struct bfd_hash_entry *bfd_hash_lookup
 400   (struct bfd_hash_table *, const char *, bfd_boolean create,
 401    bfd_boolean copy);
 402
 403 /* Insert an entry in a hash table.  */
 404 extern struct bfd_hash_entry *bfd_hash_insert
 405   (struct bfd_hash_table *, const char *, unsigned long);
 406
 407 /* Rename an entry in a hash table.  */
 408 extern void bfd_hash_rename
 409   (struct bfd_hash_table *, const char *, struct bfd_hash_entry *);
 410
 411 /* Replace an entry in a hash table.  */
 412 extern void bfd_hash_replace
 413   (struct bfd_hash_table *, struct bfd_hash_entry *old,
 414    struct bfd_hash_entry *nw);
 415
 416 /* Base method for creating a hash table entry.  */
 417 extern struct bfd_hash_entry *bfd_hash_newfunc
 418   (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
 419
 420 /* Grab some space for a hash table entry.  */
 421 extern void *bfd_hash_allocate
 422   (struct bfd_hash_table *, unsigned int);
 423
 424 /* Traverse a hash table in a random order, calling a function on each
 425    element.  If the function returns FALSE, the traversal stops.  The
 426    INFO argument is passed to the function.  */
 427 extern void bfd_hash_traverse
 428   (struct bfd_hash_table *,
 429    bfd_boolean (*) (struct bfd_hash_entry *, void *),
 430    void *info);
 431
 432 /* Allows the default size of a hash table to be configured. New hash
 433    tables allocated using bfd_hash_table_init will be created with
 434    this size.  */
 435 extern unsigned long bfd_hash_set_default_size (unsigned long);
 436
 437 /* This structure is used to keep track of stabs in sections
 438    information while linking.  */
 439
 440 struct stab_info
 441 {
 442   /* A hash table used to hold stabs strings.  */
 443   struct bfd_strtab_hash *strings;
 444   /* The header file hash table.  */
 445   struct bfd_hash_table includes;
 446   /* The first .stabstr section.  */
 447   struct bfd_section *stabstr;
 448 };
 449
 450 #define COFF_SWAP_TABLE (void *) &bfd_coff_std_swap_table
 451
 452 /* User program access to BFD facilities.  */
 453
 454 /* Direct I/O routines, for programs which know more about the object
 455    file than BFD does.  Use higher level routines if possible.  */
 456
 457 extern bfd_size_type bfd_bread (void *, bfd_size_type, bfd *);
 458 extern bfd_size_type bfd_bwrite (const void *, bfd_size_type, bfd *);
 459 extern int bfd_seek (bfd *, file_ptr, int);
 460 extern file_ptr bfd_tell (bfd *);
 461 extern int bfd_flush (bfd *);
 462 extern int bfd_stat (bfd *, struct stat *);
 463
 464 /* Deprecated old routines.  */
 465 #if __GNUC__
 466 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD)                            \
 467   (warn_deprecated ("bfd_read", __FILE__, __LINE__, __FUNCTION__),      \
 468    bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 469 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD)                           \
 470   (warn_deprecated ("bfd_write", __FILE__, __LINE__, __FUNCTION__),     \
 471    bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 472 #else
 473 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD)                            \
 474   (warn_deprecated ("bfd_read", (const char *) 0, 0, (const char *) 0), \
 475    bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 476 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD)                           \
 477   (warn_deprecated ("bfd_write", (const char *) 0, 0, (const char *) 0),\
 478    bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 479 #endif
 480 extern void warn_deprecated (const char *, const char *, int, const char *);
 481
 482 /* Cast from const char * to char * so that caller can assign to
 483    a char * without a warning.  */
 484 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
 485 #define bfd_get_cacheable(abfd) ((abfd)->cacheable)
 486 #define bfd_get_format(abfd) ((abfd)->format)
 487 #define bfd_get_target(abfd) ((abfd)->xvec->name)
 488 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
 489 #define bfd_family_coff(abfd) \
 490   (bfd_get_flavour (abfd) == bfd_target_coff_flavour || \
 491    bfd_get_flavour (abfd) == bfd_target_xcoff_flavour)
 492 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG)
 493 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE)
 494 #define bfd_header_big_endian(abfd) \
 495   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG)
 496 #define bfd_header_little_endian(abfd) \
 497   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE)
 498 #define bfd_get_file_flags(abfd) ((abfd)->flags)
 499 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
 500 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
 501 #define bfd_my_archive(abfd) ((abfd)->my_archive)
 502 #define bfd_has_map(abfd) ((abfd)->has_armap)
 503 #define bfd_is_thin_archive(abfd) ((abfd)->is_thin_archive)
 504
 505 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
 506 #define bfd_usrdata(abfd) ((abfd)->usrdata)
 507
 508 #define bfd_get_start_address(abfd) ((abfd)->start_address)
 509 #define bfd_get_symcount(abfd) ((abfd)->symcount)
 510 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
 511 #define bfd_count_sections(abfd) ((abfd)->section_count)
 512
 513 #define bfd_get_dynamic_symcount(abfd) ((abfd)->dynsymcount)
 514
 515 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
 516
 517 extern bfd_boolean bfd_cache_close
 518   (bfd *abfd);
 519 /* NB: This declaration should match the autogenerated one in libbfd.h.  */
 520
 521 extern bfd_boolean bfd_cache_close_all (void);
 522
 523 extern bfd_boolean bfd_record_phdr
 524   (bfd *, unsigned long, bfd_boolean, flagword, bfd_boolean, bfd_vma,
 525    bfd_boolean, bfd_boolean, unsigned int, struct bfd_section **);
 526
 527 /* Byte swapping routines.  */
 528
 529 bfd_uint64_t bfd_getb64 (const void *);
 530 bfd_uint64_t bfd_getl64 (const void *);
 531 bfd_int64_t bfd_getb_signed_64 (const void *);
 532 bfd_int64_t bfd_getl_signed_64 (const void *);
 533 bfd_vma bfd_getb32 (const void *);
 534 bfd_vma bfd_getl32 (const void *);
 535 bfd_signed_vma bfd_getb_signed_32 (const void *);
 536 bfd_signed_vma bfd_getl_signed_32 (const void *);
 537 bfd_vma bfd_getb16 (const void *);
 538 bfd_vma bfd_getl16 (const void *);
 539 bfd_signed_vma bfd_getb_signed_16 (const void *);
 540 bfd_signed_vma bfd_getl_signed_16 (const void *);
 541 void bfd_putb64 (bfd_uint64_t, void *);
 542 void bfd_putl64 (bfd_uint64_t, void *);
 543 void bfd_putb32 (bfd_vma, void *);
 544 void bfd_putl32 (bfd_vma, void *);
 545 void bfd_putb16 (bfd_vma, void *);
 546 void bfd_putl16 (bfd_vma, void *);
 547
 548 /* Byte swapping routines which take size and endiannes as arguments.  */
 549
 550 bfd_uint64_t bfd_get_bits (const void *, int, bfd_boolean);
 551 void bfd_put_bits (bfd_uint64_t, void *, int, bfd_boolean);
 552
 553 #if defined(__STDC__) || defined(ALMOST_STDC)
 554 struct ecoff_debug_info;
 555 struct ecoff_debug_swap;
 556 struct ecoff_extr;
 557 struct bfd_symbol;
 558 struct bfd_link_info;
 559 struct bfd_link_hash_entry;
 560 struct bfd_section_already_linked;
 561 struct bfd_elf_version_tree;
 562 #endif
 563
 564 extern bfd_boolean bfd_section_already_linked_table_init (void);
 565 extern void bfd_section_already_linked_table_free (void);
 566 extern bfd_boolean _bfd_handle_already_linked
 567   (struct bfd_section *, struct bfd_section_already_linked *,
 568    struct bfd_link_info *);
 569 \f
 570 /* Externally visible ECOFF routines.  */
 571
 572 extern bfd_vma bfd_ecoff_get_gp_value
 573   (bfd * abfd);
 574 extern bfd_boolean bfd_ecoff_set_gp_value
 575   (bfd *abfd, bfd_vma gp_value);
 576 extern bfd_boolean bfd_ecoff_set_regmasks
 577   (bfd *abfd, unsigned long gprmask, unsigned long fprmask,
 578    unsigned long *cprmask);
 579 extern void *bfd_ecoff_debug_init
 580   (bfd *output_bfd, struct ecoff_debug_info *output_debug,
 581    const struct ecoff_debug_swap *output_swap, struct bfd_link_info *);
 582 extern void bfd_ecoff_debug_free
 583   (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 584    const struct ecoff_debug_swap *output_swap, struct bfd_link_info *);
 585 extern bfd_boolean bfd_ecoff_debug_accumulate
 586   (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 587    const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 588    struct ecoff_debug_info *input_debug,
 589    const struct ecoff_debug_swap *input_swap, struct bfd_link_info *);
 590 extern bfd_boolean bfd_ecoff_debug_accumulate_other
 591   (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 592    const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 593    struct bfd_link_info *);
 594 extern bfd_boolean bfd_ecoff_debug_externals
 595   (bfd *abfd, struct ecoff_debug_info *debug,
 596    const struct ecoff_debug_swap *swap, bfd_boolean relocatable,
 597    bfd_boolean (*get_extr) (struct bfd_symbol *, struct ecoff_extr *),
 598    void (*set_index) (struct bfd_symbol *, bfd_size_type));
 599 extern bfd_boolean bfd_ecoff_debug_one_external
 600   (bfd *abfd, struct ecoff_debug_info *debug,
 601    const struct ecoff_debug_swap *swap, const char *name,
 602    struct ecoff_extr *esym);
 603 extern bfd_size_type bfd_ecoff_debug_size
 604   (bfd *abfd, struct ecoff_debug_info *debug,
 605    const struct ecoff_debug_swap *swap);
 606 extern bfd_boolean bfd_ecoff_write_debug
 607   (bfd *abfd, struct ecoff_debug_info *debug,
 608    const struct ecoff_debug_swap *swap, file_ptr where);
 609 extern bfd_boolean bfd_ecoff_write_accumulated_debug
 610   (void *handle, bfd *abfd, struct ecoff_debug_info *debug,
 611    const struct ecoff_debug_swap *swap,
 612    struct bfd_link_info *info, file_ptr where);
 613
 614 /* Externally visible ELF routines.  */
 615
 616 struct bfd_link_needed_list
 617 {
 618   struct bfd_link_needed_list *next;
 619   bfd *by;
 620   const char *name;
 621 };
 622
 623 enum dynamic_lib_link_class {
 624   DYN_NORMAL = 0,
 625   DYN_AS_NEEDED = 1,
 626   DYN_DT_NEEDED = 2,
 627   DYN_NO_ADD_NEEDED = 4,
 628   DYN_NO_NEEDED = 8
 629 };
 630
 631 enum notice_asneeded_action {
 632   notice_as_needed,
 633   notice_not_needed,
 634   notice_needed
 635 };
 636
 637 extern bfd_boolean bfd_elf_record_link_assignment
 638   (bfd *, struct bfd_link_info *, const char *, bfd_boolean,
 639    bfd_boolean);
 640 extern struct bfd_link_needed_list *bfd_elf_get_needed_list
 641   (bfd *, struct bfd_link_info *);
 642 extern bfd_boolean bfd_elf_get_bfd_needed_list
 643   (bfd *, struct bfd_link_needed_list **);
 644 extern bfd_boolean bfd_elf_stack_segment_size (bfd *, struct bfd_link_info *,
 645                                                const char *, bfd_vma);
 646 extern bfd_boolean bfd_elf_size_dynamic_sections
 647   (bfd *, const char *, const char *, const char *, const char *, const char *,
 648    const char * const *, struct bfd_link_info *, struct bfd_section **);
 649 extern bfd_boolean bfd_elf_size_dynsym_hash_dynstr
 650   (bfd *, struct bfd_link_info *);
 651 extern void bfd_elf_set_dt_needed_name
 652   (bfd *, const char *);
 653 extern const char *bfd_elf_get_dt_soname
 654   (bfd *);
 655 extern void bfd_elf_set_dyn_lib_class
 656   (bfd *, enum dynamic_lib_link_class);
 657 extern int bfd_elf_get_dyn_lib_class
 658   (bfd *);
 659 extern struct bfd_link_needed_list *bfd_elf_get_runpath_list
 660   (bfd *, struct bfd_link_info *);
 661 extern bfd_boolean bfd_elf_discard_info
 662   (bfd *, struct bfd_link_info *);
 663 extern unsigned int _bfd_elf_default_action_discarded
 664   (struct bfd_section *);
 665
 666 /* Return an upper bound on the number of bytes required to store a
 667    copy of ABFD's program header table entries.  Return -1 if an error
 668    occurs; bfd_get_error will return an appropriate code.  */
 669 extern long bfd_get_elf_phdr_upper_bound
 670   (bfd *abfd);
 671
 672 /* Copy ABFD's program header table entries to *PHDRS.  The entries
 673    will be stored as an array of Elf_Internal_Phdr structures, as
 674    defined in include/elf/internal.h.  To find out how large the
 675    buffer needs to be, call bfd_get_elf_phdr_upper_bound.
 676
 677    Return the number of program header table entries read, or -1 if an
 678    error occurs; bfd_get_error will return an appropriate code.  */
 679 extern int bfd_get_elf_phdrs
 680   (bfd *abfd, void *phdrs);
 681
 682 /* Create a new BFD as if by bfd_openr.  Rather than opening a file,
 683    reconstruct an ELF file by reading the segments out of remote
 684    memory based on the ELF file header at EHDR_VMA and the ELF program
 685    headers it points to.  If non-zero, SIZE is the known extent of the
 686    object.  If not null, *LOADBASEP is filled in with the difference
 687    between the VMAs from which the segments were read, and the VMAs
 688    the file headers (and hence BFD's idea of each section's VMA) put
 689    them at.
 690
 691    The function TARGET_READ_MEMORY is called to copy LEN bytes from
 692    the remote memory at target address VMA into the local buffer at
 693    MYADDR; it should return zero on success or an `errno' code on
 694    failure.  TEMPL must be a BFD for a target with the word size and
 695    byte order found in the remote memory.  */
 696 extern bfd *bfd_elf_bfd_from_remote_memory
 697   (bfd *templ, bfd_vma ehdr_vma, bfd_size_type size, bfd_vma *loadbasep,
 698    int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr,
 699                               bfd_size_type len));
 700
 701 extern struct bfd_section *_bfd_elf_tls_setup
 702   (bfd *, struct bfd_link_info *);
 703
 704 extern struct bfd_section *
 705 _bfd_nearby_section (bfd *, struct bfd_section *, bfd_vma);
 706
 707 extern void _bfd_fix_excluded_sec_syms
 708   (bfd *, struct bfd_link_info *);
 709
 710 extern unsigned bfd_m68k_mach_to_features (int);
 711
 712 extern int bfd_m68k_features_to_mach (unsigned);
 713
 714 extern bfd_boolean bfd_m68k_elf32_create_embedded_relocs
 715   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *,
 716    char **);
 717
 718 extern void bfd_elf_m68k_set_target_options (struct bfd_link_info *, int);
 719
 720 extern bfd_boolean bfd_bfin_elf32_create_embedded_relocs
 721   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *,
 722    char **);
 723
 724 extern bfd_boolean bfd_cr16_elf32_create_embedded_relocs
 725   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *,
 726    char **);
 727
 728 /* SunOS shared library support routines for the linker.  */
 729
 730 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list
 731   (bfd *, struct bfd_link_info *);
 732 extern bfd_boolean bfd_sunos_record_link_assignment
 733   (bfd *, struct bfd_link_info *, const char *);
 734 extern bfd_boolean bfd_sunos_size_dynamic_sections
 735   (bfd *, struct bfd_link_info *, struct bfd_section **,
 736    struct bfd_section **, struct bfd_section **);
 737
 738 /* Linux shared library support routines for the linker.  */
 739
 740 extern bfd_boolean bfd_i386linux_size_dynamic_sections
 741   (bfd *, struct bfd_link_info *);
 742 extern bfd_boolean bfd_m68klinux_size_dynamic_sections
 743   (bfd *, struct bfd_link_info *);
 744 extern bfd_boolean bfd_sparclinux_size_dynamic_sections
 745   (bfd *, struct bfd_link_info *);
 746
 747 /* mmap hacks */
 748
 749 struct _bfd_window_internal;
 750 typedef struct _bfd_window_internal bfd_window_internal;
 751
 752 typedef struct _bfd_window
 753 {
 754   /* What the user asked for.  */
 755   void *data;
 756   bfd_size_type size;
 757   /* The actual window used by BFD.  Small user-requested read-only
 758      regions sharing a page may share a single window into the object
 759      file.  Read-write versions shouldn't until I've fixed things to
 760      keep track of which portions have been claimed by the
 761      application; don't want to give the same region back when the
 762      application wants two writable copies!  */
 763   struct _bfd_window_internal *i;
 764 }
 765 bfd_window;
 766
 767 extern void bfd_init_window
 768   (bfd_window *);
 769 extern void bfd_free_window
 770   (bfd_window *);
 771 extern bfd_boolean bfd_get_file_window
 772   (bfd *, file_ptr, bfd_size_type, bfd_window *, bfd_boolean);
 773
 774 /* XCOFF support routines for the linker.  */
 775
 776 extern bfd_boolean bfd_xcoff_split_import_path
 777   (bfd *, const char *, const char **, const char **);
 778 extern bfd_boolean bfd_xcoff_set_archive_import_path
 779   (struct bfd_link_info *, bfd *, const char *);
 780 extern bfd_boolean bfd_xcoff_link_record_set
 781   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_size_type);
 782 extern bfd_boolean bfd_xcoff_import_symbol
 783   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_vma,
 784    const char *, const char *, const char *, unsigned int);
 785 extern bfd_boolean bfd_xcoff_export_symbol
 786   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *);
 787 extern bfd_boolean bfd_xcoff_link_count_reloc
 788   (bfd *, struct bfd_link_info *, const char *);
 789 extern bfd_boolean bfd_xcoff_record_link_assignment
 790   (bfd *, struct bfd_link_info *, const char *);
 791 extern bfd_boolean bfd_xcoff_size_dynamic_sections
 792   (bfd *, struct bfd_link_info *, const char *, const char *,
 793    unsigned long, unsigned long, unsigned long, bfd_boolean,
 794    int, bfd_boolean, unsigned int, struct bfd_section **, bfd_boolean);
 795 extern bfd_boolean bfd_xcoff_link_generate_rtinit
 796   (bfd *, const char *, const char *, bfd_boolean);
 797
 798 /* XCOFF support routines for ar.  */
 799 extern bfd_boolean bfd_xcoff_ar_archive_set_magic
 800   (bfd *, char *);
 801
 802 /* Externally visible COFF routines.  */
 803
 804 #if defined(__STDC__) || defined(ALMOST_STDC)
 805 struct internal_syment;
 806 union internal_auxent;
 807 #endif
 808
 809 extern bfd_boolean bfd_coff_get_syment
 810   (bfd *, struct bfd_symbol *, struct internal_syment *);
 811
 812 extern bfd_boolean bfd_coff_get_auxent
 813   (bfd *, struct bfd_symbol *, int, union internal_auxent *);
 814
 815 extern bfd_boolean bfd_coff_set_symbol_class
 816   (bfd *, struct bfd_symbol *, unsigned int);
 817
 818 extern bfd_boolean bfd_m68k_coff_create_embedded_relocs
 819   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, char **);
 820
 821 /* ARM VFP11 erratum workaround support.  */
 822 typedef enum
 823 {
 824   BFD_ARM_VFP11_FIX_DEFAULT,
 825   BFD_ARM_VFP11_FIX_NONE,
 826   BFD_ARM_VFP11_FIX_SCALAR,
 827   BFD_ARM_VFP11_FIX_VECTOR
 828 } bfd_arm_vfp11_fix;
 829
 830 extern void bfd_elf32_arm_init_maps
 831   (bfd *);
 832
 833 extern void bfd_elf32_arm_set_vfp11_fix
 834   (bfd *, struct bfd_link_info *);
 835
 836 extern void bfd_elf32_arm_set_cortex_a8_fix
 837   (bfd *, struct bfd_link_info *);
 838
 839 extern bfd_boolean bfd_elf32_arm_vfp11_erratum_scan
 840   (bfd *, struct bfd_link_info *);
 841
 842 extern void bfd_elf32_arm_vfp11_fix_veneer_locations
 843   (bfd *, struct bfd_link_info *);
 844
 845 /* ARM Interworking support.  Called from linker.  */
 846 extern bfd_boolean bfd_arm_allocate_interworking_sections
 847   (struct bfd_link_info *);
 848
 849 extern bfd_boolean bfd_arm_process_before_allocation
 850   (bfd *, struct bfd_link_info *, int);
 851
 852 extern bfd_boolean bfd_arm_get_bfd_for_interworking
 853   (bfd *, struct bfd_link_info *);
 854
 855 /* PE ARM Interworking support.  Called from linker.  */
 856 extern bfd_boolean bfd_arm_pe_allocate_interworking_sections
 857   (struct bfd_link_info *);
 858
 859 extern bfd_boolean bfd_arm_pe_process_before_allocation
 860   (bfd *, struct bfd_link_info *, int);
 861
 862 extern bfd_boolean bfd_arm_pe_get_bfd_for_interworking
 863   (bfd *, struct bfd_link_info *);
 864
 865 /* ELF ARM Interworking support.  Called from linker.  */
 866 extern bfd_boolean bfd_elf32_arm_allocate_interworking_sections
 867   (struct bfd_link_info *);
 868
 869 extern bfd_boolean bfd_elf32_arm_process_before_allocation
 870   (bfd *, struct bfd_link_info *);
 871
 872 void bfd_elf32_arm_set_target_relocs
 873   (bfd *, struct bfd_link_info *, int, char *, int, int, bfd_arm_vfp11_fix,
 874    int, int, int, int, int);
 875
 876 extern bfd_boolean bfd_elf32_arm_get_bfd_for_interworking
 877   (bfd *, struct bfd_link_info *);
 878
 879 extern bfd_boolean bfd_elf32_arm_add_glue_sections_to_bfd
 880   (bfd *, struct bfd_link_info *);
 881
 882 /* ELF ARM mapping symbol support.  */
 883 #define BFD_ARM_SPECIAL_SYM_TYPE_MAP    (1 << 0)
 884 #define BFD_ARM_SPECIAL_SYM_TYPE_TAG    (1 << 1)
 885 #define BFD_ARM_SPECIAL_SYM_TYPE_OTHER  (1 << 2)
 886 #define BFD_ARM_SPECIAL_SYM_TYPE_ANY    (~0)
 887
 888 extern bfd_boolean bfd_is_arm_special_symbol_name
 889   (const char *, int);
 890
 891 extern void bfd_elf32_arm_set_byteswap_code
 892   (struct bfd_link_info *, int);
 893
 894 extern void bfd_elf32_arm_use_long_plt (void);
 895
 896 /* ARM Note section processing.  */
 897 extern bfd_boolean bfd_arm_merge_machines
 898   (bfd *, bfd *);
 899
 900 extern bfd_boolean bfd_arm_update_notes
 901   (bfd *, const char *);
 902
 903 extern unsigned int bfd_arm_get_mach_from_notes
 904   (bfd *, const char *);
 905
 906 /* ARM stub generation support.  Called from the linker.  */
 907 extern int elf32_arm_setup_section_lists
 908   (bfd *, struct bfd_link_info *);
 909 extern void elf32_arm_next_input_section
 910   (struct bfd_link_info *, struct bfd_section *);
 911 extern bfd_boolean elf32_arm_size_stubs
 912   (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma,
 913    struct bfd_section * (*) (const char *, struct bfd_section *, unsigned int),
 914    void (*) (void));
 915 extern bfd_boolean elf32_arm_build_stubs
 916   (struct bfd_link_info *);
 917
 918 /* ARM unwind section editing support.  */
 919 extern bfd_boolean elf32_arm_fix_exidx_coverage
 920 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean);
 921
 922 /* C6x unwind section editing support.  */
 923 extern bfd_boolean elf32_tic6x_fix_exidx_coverage
 924 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean);
 925
 926 /* PowerPC @tls opcode transform/validate.  */
 927 extern unsigned int _bfd_elf_ppc_at_tls_transform
 928   (unsigned int, unsigned int);
 929 /* PowerPC @tprel opcode transform/validate.  */
 930 extern unsigned int _bfd_elf_ppc_at_tprel_transform
 931   (unsigned int, unsigned int);
 932
 933 extern void bfd_elf64_aarch64_init_maps
 934   (bfd *);
 935
 936 extern void bfd_elf32_aarch64_init_maps
 937   (bfd *);
 938
 939 extern void bfd_elf64_aarch64_set_options
 940   (bfd *, struct bfd_link_info *, int, int, int);
 941
 942 extern void bfd_elf32_aarch64_set_options
 943   (bfd *, struct bfd_link_info *, int, int, int);
 944
 945 /* ELF AArch64 mapping symbol support.  */
 946 #define BFD_AARCH64_SPECIAL_SYM_TYPE_MAP        (1 << 0)
 947 #define BFD_AARCH64_SPECIAL_SYM_TYPE_TAG        (1 << 1)
 948 #define BFD_AARCH64_SPECIAL_SYM_TYPE_OTHER      (1 << 2)
 949 #define BFD_AARCH64_SPECIAL_SYM_TYPE_ANY        (~0)
 950 extern bfd_boolean bfd_is_aarch64_special_symbol_name
 951   (const char * name, int type);
 952
 953 /* AArch64 stub generation support for ELF64.  Called from the linker.  */
 954 extern int elf64_aarch64_setup_section_lists
 955   (bfd *, struct bfd_link_info *);
 956 extern void elf64_aarch64_next_input_section
 957   (struct bfd_link_info *, struct bfd_section *);
 958 extern bfd_boolean elf64_aarch64_size_stubs
 959   (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma,
 960    struct bfd_section * (*) (const char *, struct bfd_section *),
 961    void (*) (void));
 962 extern bfd_boolean elf64_aarch64_build_stubs
 963   (struct bfd_link_info *);
 964 /* AArch64 stub generation support for ELF32.  Called from the linker.  */
 965 extern int elf32_aarch64_setup_section_lists
 966   (bfd *, struct bfd_link_info *);
 967 extern void elf32_aarch64_next_input_section
 968   (struct bfd_link_info *, struct bfd_section *);
 969 extern bfd_boolean elf32_aarch64_size_stubs
 970   (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma,
 971    struct bfd_section * (*) (const char *, struct bfd_section *),
 972    void (*) (void));
 973 extern bfd_boolean elf32_aarch64_build_stubs
 974   (struct bfd_link_info *);
 975
 976
 977 /* TI COFF load page support.  */
 978 extern void bfd_ticoff_set_section_load_page
 979   (struct bfd_section *, int);
 980
 981 extern int bfd_ticoff_get_section_load_page
 982   (struct bfd_section *);
 983
 984 /* H8/300 functions.  */
 985 extern bfd_vma bfd_h8300_pad_address
 986   (bfd *, bfd_vma);
 987
 988 /* IA64 Itanium code generation.  Called from linker.  */
 989 extern void bfd_elf32_ia64_after_parse
 990   (int);
 991
 992 extern void bfd_elf64_ia64_after_parse
 993   (int);
 994
 995 /* This structure is used for a comdat section, as in PE.  A comdat
 996    section is associated with a particular symbol.  When the linker
 997    sees a comdat section, it keeps only one of the sections with a
 998    given name and associated with a given symbol.  */
 999
1000 struct coff_comdat_info
1001 {
1002   /* The name of the symbol associated with a comdat section.  */
1003   const char *name;
1004
1005   /* The local symbol table index of the symbol associated with a
1006      comdat section.  This is only meaningful to the object file format
1007      specific code; it is not an index into the list returned by
1008      bfd_canonicalize_symtab.  */
1009   long symbol;
1010 };
1011
1012 extern struct coff_comdat_info * bfd_coff_get_comdat_section
1013   (bfd *, struct bfd_section *);