bfd/bfd-in.h

   1 /* Main header file for the bfd library -- portable access to object files.
   2
   3    Copyright (C) 1990-2015 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 #define bfd_get_section_limit_octets(bfd, sec)                  \
 296   ((bfd)->direction != write_direction && (sec)->rawsize != 0   \
 297    ? (sec)->rawsize : (sec)->size)
 298
 299 /* Find the address one past the end of SEC.  */
 300 #define bfd_get_section_limit(bfd, sec) \
 301   (bfd_get_section_limit_octets(bfd, sec) / bfd_octets_per_byte (bfd))
 302
 303 /* Return TRUE if input section SEC has been discarded.  */
 304 #define discarded_section(sec)                          \
 305   (!bfd_is_abs_section (sec)                                    \
 306    && bfd_is_abs_section ((sec)->output_section)                \
 307    && (sec)->sec_info_type != SEC_INFO_TYPE_MERGE               \
 308    && (sec)->sec_info_type != SEC_INFO_TYPE_JUST_SYMS)
 309 \f
 310 typedef enum bfd_print_symbol
 311 {
 312   bfd_print_symbol_name,
 313   bfd_print_symbol_more,
 314   bfd_print_symbol_all
 315 } bfd_print_symbol_type;
 316
 317 /* Information about a symbol that nm needs.  */
 318
 319 typedef struct _symbol_info
 320 {
 321   symvalue value;
 322   char type;
 323   const char *name;            /* Symbol name.  */
 324   unsigned char stab_type;     /* Stab type.  */
 325   char stab_other;             /* Stab other.  */
 326   short stab_desc;             /* Stab desc.  */
 327   const char *stab_name;       /* String for stab type.  */
 328 } symbol_info;
 329
 330 /* Get the name of a stabs type code.  */
 331
 332 extern const char *bfd_get_stab_name (int);
 333 \f
 334 /* Hash table routines.  There is no way to free up a hash table.  */
 335
 336 /* An element in the hash table.  Most uses will actually use a larger
 337    structure, and an instance of this will be the first field.  */
 338
 339 struct bfd_hash_entry
 340 {
 341   /* Next entry for this hash code.  */
 342   struct bfd_hash_entry *next;
 343   /* String being hashed.  */
 344   const char *string;
 345   /* Hash code.  This is the full hash code, not the index into the
 346      table.  */
 347   unsigned long hash;
 348 };
 349
 350 /* A hash table.  */
 351
 352 struct bfd_hash_table
 353 {
 354   /* The hash array.  */
 355   struct bfd_hash_entry **table;
 356   /* A function used to create new elements in the hash table.  The
 357      first entry is itself a pointer to an element.  When this
 358      function is first invoked, this pointer will be NULL.  However,
 359      having the pointer permits a hierarchy of method functions to be
 360      built each of which calls the function in the superclass.  Thus
 361      each function should be written to allocate a new block of memory
 362      only if the argument is NULL.  */
 363   struct bfd_hash_entry *(*newfunc)
 364     (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
 365    /* An objalloc for this hash table.  This is a struct objalloc *,
 366      but we use void * to avoid requiring the inclusion of objalloc.h.  */
 367   void *memory;
 368   /* The number of slots in the hash table.  */
 369   unsigned int size;
 370   /* The number of entries in the hash table.  */
 371   unsigned int count;
 372   /* The size of elements.  */
 373   unsigned int entsize;
 374   /* If non-zero, don't grow the hash table.  */
 375   unsigned int frozen:1;
 376 };
 377
 378 /* Initialize a hash table.  */
 379 extern bfd_boolean bfd_hash_table_init
 380   (struct bfd_hash_table *,
 381    struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 382                                struct bfd_hash_table *,
 383                                const char *),
 384    unsigned int);
 385
 386 /* Initialize a hash table specifying a size.  */
 387 extern bfd_boolean bfd_hash_table_init_n
 388   (struct bfd_hash_table *,
 389    struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 390                                struct bfd_hash_table *,
 391                                const char *),
 392    unsigned int, unsigned int);
 393
 394 /* Free up a hash table.  */
 395 extern void bfd_hash_table_free
 396   (struct bfd_hash_table *);
 397
 398 /* Look up a string in a hash table.  If CREATE is TRUE, a new entry
 399    will be created for this string if one does not already exist.  The
 400    COPY argument must be TRUE if this routine should copy the string
 401    into newly allocated memory when adding an entry.  */
 402 extern struct bfd_hash_entry *bfd_hash_lookup
 403   (struct bfd_hash_table *, const char *, bfd_boolean create,
 404    bfd_boolean copy);
 405
 406 /* Insert an entry in a hash table.  */
 407 extern struct bfd_hash_entry *bfd_hash_insert
 408   (struct bfd_hash_table *, const char *, unsigned long);
 409
 410 /* Rename an entry in a hash table.  */
 411 extern void bfd_hash_rename
 412   (struct bfd_hash_table *, const char *, struct bfd_hash_entry *);
 413
 414 /* Replace an entry in a hash table.  */
 415 extern void bfd_hash_replace
 416   (struct bfd_hash_table *, struct bfd_hash_entry *old,
 417    struct bfd_hash_entry *nw);
 418
 419 /* Base method for creating a hash table entry.  */
 420 extern struct bfd_hash_entry *bfd_hash_newfunc
 421   (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
 422
 423 /* Grab some space for a hash table entry.  */
 424 extern void *bfd_hash_allocate
 425   (struct bfd_hash_table *, unsigned int);
 426
 427 /* Traverse a hash table in a random order, calling a function on each
 428    element.  If the function returns FALSE, the traversal stops.  The
 429    INFO argument is passed to the function.  */
 430 extern void bfd_hash_traverse
 431   (struct bfd_hash_table *,
 432    bfd_boolean (*) (struct bfd_hash_entry *, void *),
 433    void *info);
 434
 435 /* Allows the default size of a hash table to be configured. New hash
 436    tables allocated using bfd_hash_table_init will be created with
 437    this size.  */
 438 extern unsigned long bfd_hash_set_default_size (unsigned long);
 439
 440 /* This structure is used to keep track of stabs in sections
 441    information while linking.  */
 442
 443 struct stab_info
 444 {
 445   /* A hash table used to hold stabs strings.  */
 446   struct bfd_strtab_hash *strings;
 447   /* The header file hash table.  */
 448   struct bfd_hash_table includes;
 449   /* The first .stabstr section.  */
 450   struct bfd_section *stabstr;
 451 };
 452
 453 #define COFF_SWAP_TABLE (void *) &bfd_coff_std_swap_table
 454
 455 /* User program access to BFD facilities.  */
 456
 457 /* Direct I/O routines, for programs which know more about the object
 458    file than BFD does.  Use higher level routines if possible.  */
 459
 460 extern bfd_size_type bfd_bread (void *, bfd_size_type, bfd *);
 461 extern bfd_size_type bfd_bwrite (const void *, bfd_size_type, bfd *);
 462 extern int bfd_seek (bfd *, file_ptr, int);
 463 extern file_ptr bfd_tell (bfd *);
 464 extern int bfd_flush (bfd *);
 465 extern int bfd_stat (bfd *, struct stat *);
 466
 467 /* Deprecated old routines.  */
 468 #if __GNUC__
 469 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD)                            \
 470   (warn_deprecated ("bfd_read", __FILE__, __LINE__, __FUNCTION__),      \
 471    bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 472 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD)                           \
 473   (warn_deprecated ("bfd_write", __FILE__, __LINE__, __FUNCTION__),     \
 474    bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 475 #else
 476 #define bfd_read(BUF, ELTSIZE, NITEMS, ABFD)                            \
 477   (warn_deprecated ("bfd_read", (const char *) 0, 0, (const char *) 0), \
 478    bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 479 #define bfd_write(BUF, ELTSIZE, NITEMS, ABFD)                           \
 480   (warn_deprecated ("bfd_write", (const char *) 0, 0, (const char *) 0),\
 481    bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
 482 #endif
 483 extern void warn_deprecated (const char *, const char *, int, const char *);
 484
 485 /* Cast from const char * to char * so that caller can assign to
 486    a char * without a warning.  */
 487 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
 488 #define bfd_get_cacheable(abfd) ((abfd)->cacheable)
 489 #define bfd_get_format(abfd) ((abfd)->format)
 490 #define bfd_get_target(abfd) ((abfd)->xvec->name)
 491 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
 492 #define bfd_family_coff(abfd) \
 493   (bfd_get_flavour (abfd) == bfd_target_coff_flavour || \
 494    bfd_get_flavour (abfd) == bfd_target_xcoff_flavour)
 495 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG)
 496 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE)
 497 #define bfd_header_big_endian(abfd) \
 498   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG)
 499 #define bfd_header_little_endian(abfd) \
 500   ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE)
 501 #define bfd_get_file_flags(abfd) ((abfd)->flags)
 502 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
 503 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
 504 #define bfd_my_archive(abfd) ((abfd)->my_archive)
 505 #define bfd_has_map(abfd) ((abfd)->has_armap)
 506 #define bfd_is_thin_archive(abfd) ((abfd)->is_thin_archive)
 507
 508 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
 509 #define bfd_usrdata(abfd) ((abfd)->usrdata)
 510
 511 #define bfd_get_start_address(abfd) ((abfd)->start_address)
 512 #define bfd_get_symcount(abfd) ((abfd)->symcount)
 513 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
 514 #define bfd_count_sections(abfd) ((abfd)->section_count)
 515
 516 #define bfd_get_dynamic_symcount(abfd) ((abfd)->dynsymcount)
 517
 518 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
 519
 520 extern bfd_boolean bfd_cache_close
 521   (bfd *abfd);
 522 /* NB: This declaration should match the autogenerated one in libbfd.h.  */
 523
 524 extern bfd_boolean bfd_cache_close_all (void);
 525
 526 extern bfd_boolean bfd_record_phdr
 527   (bfd *, unsigned long, bfd_boolean, flagword, bfd_boolean, bfd_vma,
 528    bfd_boolean, bfd_boolean, unsigned int, struct bfd_section **);
 529
 530 /* Byte swapping routines.  */
 531
 532 bfd_uint64_t bfd_getb64 (const void *);
 533 bfd_uint64_t bfd_getl64 (const void *);
 534 bfd_int64_t bfd_getb_signed_64 (const void *);
 535 bfd_int64_t bfd_getl_signed_64 (const void *);
 536 bfd_vma bfd_getb32 (const void *);
 537 bfd_vma bfd_getl32 (const void *);
 538 bfd_signed_vma bfd_getb_signed_32 (const void *);
 539 bfd_signed_vma bfd_getl_signed_32 (const void *);
 540 bfd_vma bfd_getb16 (const void *);
 541 bfd_vma bfd_getl16 (const void *);
 542 bfd_signed_vma bfd_getb_signed_16 (const void *);
 543 bfd_signed_vma bfd_getl_signed_16 (const void *);
 544 void bfd_putb64 (bfd_uint64_t, void *);
 545 void bfd_putl64 (bfd_uint64_t, void *);
 546 void bfd_putb32 (bfd_vma, void *);
 547 void bfd_putl32 (bfd_vma, void *);
 548 void bfd_putb16 (bfd_vma, void *);
 549 void bfd_putl16 (bfd_vma, void *);
 550
 551 /* Byte swapping routines which take size and endiannes as arguments.  */
 552
 553 bfd_uint64_t bfd_get_bits (const void *, int, bfd_boolean);
 554 void bfd_put_bits (bfd_uint64_t, void *, int, bfd_boolean);
 555
 556 #if defined(__STDC__) || defined(ALMOST_STDC)
 557 struct ecoff_debug_info;
 558 struct ecoff_debug_swap;
 559 struct ecoff_extr;
 560 struct bfd_symbol;
 561 struct bfd_link_info;
 562 struct bfd_link_hash_entry;
 563 struct bfd_section_already_linked;
 564 struct bfd_elf_version_tree;
 565 #endif
 566
 567 extern bfd_boolean bfd_section_already_linked_table_init (void);
 568 extern void bfd_section_already_linked_table_free (void);
 569 extern bfd_boolean _bfd_handle_already_linked
 570   (struct bfd_section *, struct bfd_section_already_linked *,
 571    struct bfd_link_info *);
 572 \f
 573 /* Externally visible ECOFF routines.  */
 574
 575 extern bfd_vma bfd_ecoff_get_gp_value
 576   (bfd * abfd);
 577 extern bfd_boolean bfd_ecoff_set_gp_value
 578   (bfd *abfd, bfd_vma gp_value);
 579 extern bfd_boolean bfd_ecoff_set_regmasks
 580   (bfd *abfd, unsigned long gprmask, unsigned long fprmask,
 581    unsigned long *cprmask);
 582 extern void *bfd_ecoff_debug_init
 583   (bfd *output_bfd, struct ecoff_debug_info *output_debug,
 584    const struct ecoff_debug_swap *output_swap, struct bfd_link_info *);
 585 extern void bfd_ecoff_debug_free
 586   (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 587    const struct ecoff_debug_swap *output_swap, struct bfd_link_info *);
 588 extern bfd_boolean bfd_ecoff_debug_accumulate
 589   (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 590    const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 591    struct ecoff_debug_info *input_debug,
 592    const struct ecoff_debug_swap *input_swap, struct bfd_link_info *);
 593 extern bfd_boolean bfd_ecoff_debug_accumulate_other
 594   (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
 595    const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
 596    struct bfd_link_info *);
 597 extern bfd_boolean bfd_ecoff_debug_externals
 598   (bfd *abfd, struct ecoff_debug_info *debug,
 599    const struct ecoff_debug_swap *swap, bfd_boolean relocatable,
 600    bfd_boolean (*get_extr) (struct bfd_symbol *, struct ecoff_extr *),
 601    void (*set_index) (struct bfd_symbol *, bfd_size_type));
 602 extern bfd_boolean bfd_ecoff_debug_one_external
 603   (bfd *abfd, struct ecoff_debug_info *debug,
 604    const struct ecoff_debug_swap *swap, const char *name,
 605    struct ecoff_extr *esym);
 606 extern bfd_size_type bfd_ecoff_debug_size
 607   (bfd *abfd, struct ecoff_debug_info *debug,
 608    const struct ecoff_debug_swap *swap);
 609 extern bfd_boolean bfd_ecoff_write_debug
 610   (bfd *abfd, struct ecoff_debug_info *debug,
 611    const struct ecoff_debug_swap *swap, file_ptr where);
 612 extern bfd_boolean bfd_ecoff_write_accumulated_debug
 613   (void *handle, bfd *abfd, struct ecoff_debug_info *debug,
 614    const struct ecoff_debug_swap *swap,
 615    struct bfd_link_info *info, file_ptr where);
 616
 617 /* Externally visible ELF routines.  */
 618
 619 struct bfd_link_needed_list
 620 {
 621   struct bfd_link_needed_list *next;
 622   bfd *by;
 623   const char *name;
 624 };
 625
 626 enum dynamic_lib_link_class {
 627   DYN_NORMAL = 0,
 628   DYN_AS_NEEDED = 1,
 629   DYN_DT_NEEDED = 2,
 630   DYN_NO_ADD_NEEDED = 4,
 631   DYN_NO_NEEDED = 8
 632 };
 633
 634 enum notice_asneeded_action {
 635   notice_as_needed,
 636   notice_not_needed,
 637   notice_needed
 638 };
 639
 640 extern bfd_boolean bfd_elf_record_link_assignment
 641   (bfd *, struct bfd_link_info *, const char *, bfd_boolean,
 642    bfd_boolean);
 643 extern struct bfd_link_needed_list *bfd_elf_get_needed_list
 644   (bfd *, struct bfd_link_info *);
 645 extern bfd_boolean bfd_elf_get_bfd_needed_list
 646   (bfd *, struct bfd_link_needed_list **);
 647 extern bfd_boolean bfd_elf_stack_segment_size (bfd *, struct bfd_link_info *,
 648                                                const char *, bfd_vma);
 649 extern bfd_boolean bfd_elf_size_dynamic_sections
 650   (bfd *, const char *, const char *, const char *, const char *, const char *,
 651    const char * const *, struct bfd_link_info *, struct bfd_section **);
 652 extern bfd_boolean bfd_elf_size_dynsym_hash_dynstr
 653   (bfd *, struct bfd_link_info *);
 654 extern void bfd_elf_set_dt_needed_name
 655   (bfd *, const char *);
 656 extern const char *bfd_elf_get_dt_soname
 657   (bfd *);
 658 extern void bfd_elf_set_dyn_lib_class
 659   (bfd *, enum dynamic_lib_link_class);
 660 extern int bfd_elf_get_dyn_lib_class
 661   (bfd *);
 662 extern struct bfd_link_needed_list *bfd_elf_get_runpath_list
 663   (bfd *, struct bfd_link_info *);
 664 extern int bfd_elf_discard_info
 665   (bfd *, struct bfd_link_info *);
 666 extern unsigned int _bfd_elf_default_action_discarded
 667   (struct bfd_section *);
 668
 669 /* Return an upper bound on the number of bytes required to store a
 670    copy of ABFD's program header table entries.  Return -1 if an error
 671    occurs; bfd_get_error will return an appropriate code.  */
 672 extern long bfd_get_elf_phdr_upper_bound
 673   (bfd *abfd);
 674
 675 /* Copy ABFD's program header table entries to *PHDRS.  The entries
 676    will be stored as an array of Elf_Internal_Phdr structures, as
 677    defined in include/elf/internal.h.  To find out how large the
 678    buffer needs to be, call bfd_get_elf_phdr_upper_bound.
 679
 680    Return the number of program header table entries read, or -1 if an
 681    error occurs; bfd_get_error will return an appropriate code.  */
 682 extern int bfd_get_elf_phdrs
 683   (bfd *abfd, void *phdrs);
 684
 685 /* Create a new BFD as if by bfd_openr.  Rather than opening a file,
 686    reconstruct an ELF file by reading the segments out of remote
 687    memory based on the ELF file header at EHDR_VMA and the ELF program
 688    headers it points to.  If non-zero, SIZE is the known extent of the
 689    object.  If not null, *LOADBASEP is filled in with the difference
 690    between the VMAs from which the segments were read, and the VMAs
 691    the file headers (and hence BFD's idea of each section's VMA) put
 692    them at.
 693
 694    The function TARGET_READ_MEMORY is called to copy LEN bytes from
 695    the remote memory at target address VMA into the local buffer at
 696    MYADDR; it should return zero on success or an `errno' code on
 697    failure.  TEMPL must be a BFD for a target with the word size and
 698    byte order found in the remote memory.  */
 699 extern bfd *bfd_elf_bfd_from_remote_memory
 700   (bfd *templ, bfd_vma ehdr_vma, bfd_size_type size, bfd_vma *loadbasep,
 701    int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr,
 702                               bfd_size_type len));
 703
 704 extern struct bfd_section *_bfd_elf_tls_setup
 705   (bfd *, struct bfd_link_info *);
 706
 707 extern struct bfd_section *
 708 _bfd_nearby_section (bfd *, struct bfd_section *, bfd_vma);
 709
 710 extern void _bfd_fix_excluded_sec_syms
 711   (bfd *, struct bfd_link_info *);
 712
 713 extern unsigned bfd_m68k_mach_to_features (int);
 714
 715 extern int bfd_m68k_features_to_mach (unsigned);
 716
 717 extern bfd_boolean bfd_m68k_elf32_create_embedded_relocs
 718   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *,
 719    char **);
 720
 721 extern void bfd_elf_m68k_set_target_options (struct bfd_link_info *, int);
 722
 723 extern bfd_boolean bfd_bfin_elf32_create_embedded_relocs
 724   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *,
 725    char **);
 726
 727 extern bfd_boolean bfd_cr16_elf32_create_embedded_relocs
 728   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *,
 729    char **);
 730
 731 /* SunOS shared library support routines for the linker.  */
 732
 733 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list
 734   (bfd *, struct bfd_link_info *);
 735 extern bfd_boolean bfd_sunos_record_link_assignment
 736   (bfd *, struct bfd_link_info *, const char *);
 737 extern bfd_boolean bfd_sunos_size_dynamic_sections
 738   (bfd *, struct bfd_link_info *, struct bfd_section **,
 739    struct bfd_section **, struct bfd_section **);
 740
 741 /* Linux shared library support routines for the linker.  */
 742
 743 extern bfd_boolean bfd_i386linux_size_dynamic_sections
 744   (bfd *, struct bfd_link_info *);
 745 extern bfd_boolean bfd_m68klinux_size_dynamic_sections
 746   (bfd *, struct bfd_link_info *);
 747 extern bfd_boolean bfd_sparclinux_size_dynamic_sections
 748   (bfd *, struct bfd_link_info *);
 749
 750 /* mmap hacks */
 751
 752 struct _bfd_window_internal;
 753 typedef struct _bfd_window_internal bfd_window_internal;
 754
 755 typedef struct _bfd_window
 756 {
 757   /* What the user asked for.  */
 758   void *data;
 759   bfd_size_type size;
 760   /* The actual window used by BFD.  Small user-requested read-only
 761      regions sharing a page may share a single window into the object
 762      file.  Read-write versions shouldn't until I've fixed things to
 763      keep track of which portions have been claimed by the
 764      application; don't want to give the same region back when the
 765      application wants two writable copies!  */
 766   struct _bfd_window_internal *i;
 767 }
 768 bfd_window;
 769
 770 extern void bfd_init_window
 771   (bfd_window *);
 772 extern void bfd_free_window
 773   (bfd_window *);
 774 extern bfd_boolean bfd_get_file_window
 775   (bfd *, file_ptr, bfd_size_type, bfd_window *, bfd_boolean);
 776
 777 /* XCOFF support routines for the linker.  */
 778
 779 extern bfd_boolean bfd_xcoff_split_import_path
 780   (bfd *, const char *, const char **, const char **);
 781 extern bfd_boolean bfd_xcoff_set_archive_import_path
 782   (struct bfd_link_info *, bfd *, const char *);
 783 extern bfd_boolean bfd_xcoff_link_record_set
 784   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_size_type);
 785 extern bfd_boolean bfd_xcoff_import_symbol
 786   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_vma,
 787    const char *, const char *, const char *, unsigned int);
 788 extern bfd_boolean bfd_xcoff_export_symbol
 789   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *);
 790 extern bfd_boolean bfd_xcoff_link_count_reloc
 791   (bfd *, struct bfd_link_info *, const char *);
 792 extern bfd_boolean bfd_xcoff_record_link_assignment
 793   (bfd *, struct bfd_link_info *, const char *);
 794 extern bfd_boolean bfd_xcoff_size_dynamic_sections
 795   (bfd *, struct bfd_link_info *, const char *, const char *,
 796    unsigned long, unsigned long, unsigned long, bfd_boolean,
 797    int, bfd_boolean, unsigned int, struct bfd_section **, bfd_boolean);
 798 extern bfd_boolean bfd_xcoff_link_generate_rtinit
 799   (bfd *, const char *, const char *, bfd_boolean);
 800
 801 /* XCOFF support routines for ar.  */
 802 extern bfd_boolean bfd_xcoff_ar_archive_set_magic
 803   (bfd *, char *);
 804
 805 /* Externally visible COFF routines.  */
 806
 807 #if defined(__STDC__) || defined(ALMOST_STDC)
 808 struct internal_syment;
 809 union internal_auxent;
 810 #endif
 811
 812 extern bfd_boolean bfd_coff_set_symbol_class
 813   (bfd *, struct bfd_symbol *, unsigned int);
 814
 815 extern bfd_boolean bfd_m68k_coff_create_embedded_relocs
 816   (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, char **);
 817
 818 /* ARM VFP11 erratum workaround support.  */
 819 typedef enum
 820 {
 821   BFD_ARM_VFP11_FIX_DEFAULT,
 822   BFD_ARM_VFP11_FIX_NONE,
 823   BFD_ARM_VFP11_FIX_SCALAR,
 824   BFD_ARM_VFP11_FIX_VECTOR
 825 } bfd_arm_vfp11_fix;
 826
 827 extern void bfd_elf32_arm_init_maps
 828   (bfd *);
 829
 830 extern void bfd_elf32_arm_set_vfp11_fix
 831   (bfd *, struct bfd_link_info *);
 832
 833 extern void bfd_elf32_arm_set_cortex_a8_fix
 834   (bfd *, struct bfd_link_info *);
 835
 836 extern bfd_boolean bfd_elf32_arm_vfp11_erratum_scan
 837   (bfd *, struct bfd_link_info *);
 838
 839 extern void bfd_elf32_arm_vfp11_fix_veneer_locations
 840   (bfd *, struct bfd_link_info *);
 841
 842 /* ARM Interworking support.  Called from linker.  */
 843 extern bfd_boolean bfd_arm_allocate_interworking_sections
 844   (struct bfd_link_info *);
 845
 846 extern bfd_boolean bfd_arm_process_before_allocation
 847   (bfd *, struct bfd_link_info *, int);
 848
 849 extern bfd_boolean bfd_arm_get_bfd_for_interworking
 850   (bfd *, struct bfd_link_info *);
 851
 852 /* PE ARM Interworking support.  Called from linker.  */
 853 extern bfd_boolean bfd_arm_pe_allocate_interworking_sections
 854   (struct bfd_link_info *);
 855
 856 extern bfd_boolean bfd_arm_pe_process_before_allocation
 857   (bfd *, struct bfd_link_info *, int);
 858
 859 extern bfd_boolean bfd_arm_pe_get_bfd_for_interworking
 860   (bfd *, struct bfd_link_info *);
 861
 862 /* ELF ARM Interworking support.  Called from linker.  */
 863 extern bfd_boolean bfd_elf32_arm_allocate_interworking_sections
 864   (struct bfd_link_info *);
 865
 866 extern bfd_boolean bfd_elf32_arm_process_before_allocation
 867   (bfd *, struct bfd_link_info *);
 868
 869 void bfd_elf32_arm_set_target_relocs
 870   (bfd *, struct bfd_link_info *, int, char *, int, int, bfd_arm_vfp11_fix,
 871    int, int, int, int, int);
 872
 873 extern bfd_boolean bfd_elf32_arm_get_bfd_for_interworking
 874   (bfd *, struct bfd_link_info *);
 875
 876 extern bfd_boolean bfd_elf32_arm_add_glue_sections_to_bfd
 877   (bfd *, struct bfd_link_info *);
 878
 879 /* ELF ARM mapping symbol support.  */
 880 #define BFD_ARM_SPECIAL_SYM_TYPE_MAP    (1 << 0)
 881 #define BFD_ARM_SPECIAL_SYM_TYPE_TAG    (1 << 1)
 882 #define BFD_ARM_SPECIAL_SYM_TYPE_OTHER  (1 << 2)
 883 #define BFD_ARM_SPECIAL_SYM_TYPE_ANY    (~0)
 884
 885 extern bfd_boolean bfd_is_arm_special_symbol_name
 886   (const char *, int);
 887
 888 extern void bfd_elf32_arm_set_byteswap_code
 889   (struct bfd_link_info *, int);
 890
 891 extern void bfd_elf32_arm_use_long_plt (void);
 892
 893 /* ARM Note section processing.  */
 894 extern bfd_boolean bfd_arm_merge_machines
 895   (bfd *, bfd *);
 896
 897 extern bfd_boolean bfd_arm_update_notes
 898   (bfd *, const char *);
 899
 900 extern unsigned int bfd_arm_get_mach_from_notes
 901   (bfd *, const char *);
 902
 903 /* ARM stub generation support.  Called from the linker.  */
 904 extern int elf32_arm_setup_section_lists
 905   (bfd *, struct bfd_link_info *);
 906 extern void elf32_arm_next_input_section
 907   (struct bfd_link_info *, struct bfd_section *);
 908 extern bfd_boolean elf32_arm_size_stubs
 909   (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma,
 910    struct bfd_section * (*) (const char *, struct bfd_section *, unsigned int),
 911    void (*) (void));
 912 extern bfd_boolean elf32_arm_build_stubs
 913   (struct bfd_link_info *);
 914
 915 /* ARM unwind section editing support.  */
 916 extern bfd_boolean elf32_arm_fix_exidx_coverage
 917 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean);
 918
 919 /* C6x unwind section editing support.  */
 920 extern bfd_boolean elf32_tic6x_fix_exidx_coverage
 921 (struct bfd_section **, unsigned int, struct bfd_link_info *, bfd_boolean);
 922
 923 /* PowerPC @tls opcode transform/validate.  */
 924 extern unsigned int _bfd_elf_ppc_at_tls_transform
 925   (unsigned int, unsigned int);
 926 /* PowerPC @tprel opcode transform/validate.  */
 927 extern unsigned int _bfd_elf_ppc_at_tprel_transform
 928   (unsigned int, unsigned int);
 929
 930 extern void bfd_elf64_aarch64_init_maps
 931   (bfd *);
 932
 933 extern void bfd_elf32_aarch64_init_maps
 934   (bfd *);
 935
 936 extern void bfd_elf64_aarch64_set_options
 937   (bfd *, struct bfd_link_info *, int, int, int, int);
 938
 939 extern void bfd_elf32_aarch64_set_options
 940   (bfd *, struct bfd_link_info *, int, int, int, int);
 941
 942 /* ELF AArch64 mapping symbol support.  */
 943 #define BFD_AARCH64_SPECIAL_SYM_TYPE_MAP        (1 << 0)
 944 #define BFD_AARCH64_SPECIAL_SYM_TYPE_TAG        (1 << 1)
 945 #define BFD_AARCH64_SPECIAL_SYM_TYPE_OTHER      (1 << 2)
 946 #define BFD_AARCH64_SPECIAL_SYM_TYPE_ANY        (~0)
 947 extern bfd_boolean bfd_is_aarch64_special_symbol_name
 948   (const char * name, int type);
 949
 950 /* AArch64 stub generation support for ELF64.  Called from the linker.  */
 951 extern int elf64_aarch64_setup_section_lists
 952   (bfd *, struct bfd_link_info *);
 953 extern void elf64_aarch64_next_input_section
 954   (struct bfd_link_info *, struct bfd_section *);
 955 extern bfd_boolean elf64_aarch64_size_stubs
 956   (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma,
 957    struct bfd_section * (*) (const char *, struct bfd_section *),
 958    void (*) (void));
 959 extern bfd_boolean elf64_aarch64_build_stubs
 960   (struct bfd_link_info *);
 961 /* AArch64 stub generation support for ELF32.  Called from the linker.  */
 962 extern int elf32_aarch64_setup_section_lists
 963   (bfd *, struct bfd_link_info *);
 964 extern void elf32_aarch64_next_input_section
 965   (struct bfd_link_info *, struct bfd_section *);
 966 extern bfd_boolean elf32_aarch64_size_stubs
 967   (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma,
 968    struct bfd_section * (*) (const char *, struct bfd_section *),
 969    void (*) (void));
 970 extern bfd_boolean elf32_aarch64_build_stubs
 971   (struct bfd_link_info *);
 972
 973
 974 /* TI COFF load page support.  */
 975 extern void bfd_ticoff_set_section_load_page
 976   (struct bfd_section *, int);
 977
 978 extern int bfd_ticoff_get_section_load_page
 979   (struct bfd_section *);
 980
 981 /* H8/300 functions.  */
 982 extern bfd_vma bfd_h8300_pad_address
 983   (bfd *, bfd_vma);
 984
 985 /* IA64 Itanium code generation.  Called from linker.  */
 986 extern void bfd_elf32_ia64_after_parse
 987   (int);
 988
 989 extern void bfd_elf64_ia64_after_parse
 990   (int);