bfd/libbfd-in.h

   1 /* libbfd.h -- Declarations used by bfd library *implementation*.
   2    (This include file is not for users of the library.)
   3
   4    Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   5    1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
   6    Free Software Foundation, Inc.
   7
   8    Written by Cygnus Support.
   9
  10 This file is part of BFD, the Binary File Descriptor library.
  11
  12 This program is free software; you can redistribute it and/or modify
  13 it under the terms of the GNU General Public License as published by
  14 the Free Software Foundation; either version 2 of the License, or
  15 (at your option) any later version.
  16
  17 This program is distributed in the hope that it will be useful,
  18 but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 GNU General Public License for more details.
  21
  22 You should have received a copy of the GNU General Public License
  23 along with this program; if not, write to the Free Software
  24 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  25
  26 #include "hashtab.h"
  27
  28 /* Align an address upward to a boundary, expressed as a number of bytes.
  29    E.g. align to an 8-byte boundary with argument of 8.  Take care never
  30    to wrap around if the address is within boundary-1 of the end of the
  31    address space.  */
  32 #define BFD_ALIGN(this, boundary)                                         \
  33   ((((bfd_vma) (this) + (boundary) - 1) >= (bfd_vma) (this))              \
  34    ? (((bfd_vma) (this) + ((boundary) - 1)) & ~ (bfd_vma) ((boundary)-1)) \
  35    : ~ (bfd_vma) 0)
  36
  37 /* If you want to read and write large blocks, you might want to do it
  38    in quanta of this amount */
  39 #define DEFAULT_BUFFERSIZE 8192
  40
  41 /* Set a tdata field.  Can't use the other macros for this, since they
  42    do casts, and casting to the left of assignment isn't portable.  */
  43 #define set_tdata(bfd, v) ((bfd)->tdata.any = (v))
  44
  45 /* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points
  46    to an instance of this structure.  */
  47
  48 struct bfd_in_memory
  49 {
  50   /* Size of buffer.  */
  51   bfd_size_type size;
  52   /* Buffer holding contents of BFD.  */
  53   bfd_byte *buffer;
  54 };
  55
  56 struct section_hash_entry
  57 {
  58   struct bfd_hash_entry root;
  59   asection section;
  60 };
  61
  62 /* tdata for an archive.  For an input archive, cache
  63    needs to be free()'d.  For an output archive, symdefs do.  */
  64
  65 struct artdata {
  66   file_ptr first_file_filepos;
  67   /* Speed up searching the armap */
  68   htab_t cache;
  69   bfd *archive_head;            /* Only interesting in output routines */
  70   carsym *symdefs;              /* the symdef entries */
  71   symindex symdef_count;        /* how many there are */
  72   char *extended_names;         /* clever intel extension */
  73   bfd_size_type extended_names_size; /* Size of extended names */
  74   /* when more compilers are standard C, this can be a time_t */
  75   long  armap_timestamp;        /* Timestamp value written into armap.
  76                                    This is used for BSD archives to check
  77                                    that the timestamp is recent enough
  78                                    for the BSD linker to not complain,
  79                                    just before we finish writing an
  80                                    archive.  */
  81   file_ptr armap_datepos;       /* Position within archive to seek to
  82                                    rewrite the date field.  */
  83   void *tdata;                  /* Backend specific information.  */
  84 };
  85
  86 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data)
  87
  88 /* Goes in bfd's arelt_data slot */
  89 struct areltdata {
  90   char * arch_header;           /* it's actually a string */
  91   unsigned int parsed_size;     /* octets of filesize not including ar_hdr */
  92   char *filename;               /* null-terminated */
  93 };
  94
  95 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
  96
  97 extern void *bfd_malloc
  98   (bfd_size_type);
  99 extern void *bfd_realloc
 100   (void *, bfd_size_type);
 101 extern void *bfd_zmalloc
 102   (bfd_size_type);
 103 extern void *bfd_malloc2
 104   (bfd_size_type, bfd_size_type);
 105 extern void *bfd_realloc2
 106   (void *, bfd_size_type, bfd_size_type);
 107 extern void *bfd_zmalloc2
 108   (bfd_size_type, bfd_size_type);
 109
 110 extern void _bfd_default_error_handler (const char *s, ...);
 111 extern bfd_error_handler_type _bfd_error_handler;
 112
 113 /* These routines allocate and free things on the BFD's objalloc.  */
 114
 115 extern void *bfd_alloc
 116   (bfd *, bfd_size_type);
 117 extern void *bfd_zalloc
 118   (bfd *, bfd_size_type);
 119 extern void *bfd_alloc2
 120   (bfd *, bfd_size_type, bfd_size_type);
 121 extern void *bfd_zalloc2
 122   (bfd *, bfd_size_type, bfd_size_type);
 123 extern void bfd_release
 124   (bfd *, void *);
 125
 126 bfd * _bfd_create_empty_archive_element_shell
 127   (bfd *obfd);
 128 bfd * _bfd_look_for_bfd_in_cache
 129   (bfd *, file_ptr);
 130 bfd_boolean _bfd_add_bfd_to_archive_cache
 131   (bfd *, file_ptr, bfd *);
 132 bfd_boolean _bfd_generic_mkarchive
 133   (bfd *abfd);
 134 const bfd_target *bfd_generic_archive_p
 135   (bfd *abfd);
 136 bfd_boolean bfd_slurp_armap
 137   (bfd *abfd);
 138 bfd_boolean bfd_slurp_bsd_armap_f2
 139   (bfd *abfd);
 140 #define bfd_slurp_bsd_armap bfd_slurp_armap
 141 #define bfd_slurp_coff_armap bfd_slurp_armap
 142 bfd_boolean _bfd_slurp_extended_name_table
 143   (bfd *abfd);
 144 extern bfd_boolean _bfd_construct_extended_name_table
 145   (bfd *, bfd_boolean, char **, bfd_size_type *);
 146 bfd_boolean _bfd_write_archive_contents
 147   (bfd *abfd);
 148 bfd_boolean _bfd_compute_and_write_armap
 149   (bfd *, unsigned int elength);
 150 bfd *_bfd_get_elt_at_filepos
 151   (bfd *archive, file_ptr filepos);
 152 extern bfd *_bfd_generic_get_elt_at_index
 153   (bfd *, symindex);
 154 bfd * _bfd_new_bfd
 155   (void);
 156 void _bfd_delete_bfd
 157   (bfd *);
 158 bfd_boolean _bfd_free_cached_info
 159   (bfd *);
 160
 161 bfd_boolean bfd_false
 162   (bfd *ignore);
 163 bfd_boolean bfd_true
 164   (bfd *ignore);
 165 void *bfd_nullvoidptr
 166   (bfd *ignore);
 167 int bfd_0
 168   (bfd *ignore);
 169 unsigned int bfd_0u
 170   (bfd *ignore);
 171 long bfd_0l
 172   (bfd *ignore);
 173 long _bfd_n1
 174   (bfd *ignore);
 175 void bfd_void
 176   (bfd *ignore);
 177
 178 bfd *_bfd_new_bfd_contained_in
 179   (bfd *);
 180 const bfd_target *_bfd_dummy_target
 181   (bfd *abfd);
 182
 183 void bfd_dont_truncate_arname
 184   (bfd *abfd, const char *filename, char *hdr);
 185 void bfd_bsd_truncate_arname
 186   (bfd *abfd, const char *filename, char *hdr);
 187 void bfd_gnu_truncate_arname
 188   (bfd *abfd, const char *filename, char *hdr);
 189
 190 bfd_boolean bsd_write_armap
 191   (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
 192    int stridx);
 193
 194 bfd_boolean coff_write_armap
 195   (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
 196    int stridx);
 197
 198 extern void *_bfd_generic_read_ar_hdr
 199   (bfd *);
 200 extern void _bfd_ar_spacepad
 201   (char *, size_t, const char *, long);
 202
 203 extern void *_bfd_generic_read_ar_hdr_mag
 204   (bfd *, const char *);
 205
 206 bfd * bfd_generic_openr_next_archived_file
 207   (bfd *archive, bfd *last_file);
 208
 209 int bfd_generic_stat_arch_elt
 210   (bfd *, struct stat *);
 211
 212 #define _bfd_read_ar_hdr(abfd) \
 213   BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd))
 214 \f
 215 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC.  Use
 216    BFD_JUMP_TABLE_GENERIC (_bfd_generic).  */
 217
 218 #define _bfd_generic_close_and_cleanup bfd_true
 219 #define _bfd_generic_bfd_free_cached_info bfd_true
 220 extern bfd_boolean _bfd_generic_new_section_hook
 221   (bfd *, asection *);
 222 extern bfd_boolean _bfd_generic_get_section_contents
 223   (bfd *, asection *, void *, file_ptr, bfd_size_type);
 224 extern bfd_boolean _bfd_generic_get_section_contents_in_window
 225   (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type);
 226
 227 /* Generic routines to use for BFD_JUMP_TABLE_COPY.  Use
 228    BFD_JUMP_TABLE_COPY (_bfd_generic).  */
 229
 230 #define _bfd_generic_bfd_copy_private_bfd_data \
 231   ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
 232 #define _bfd_generic_bfd_merge_private_bfd_data \
 233   ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
 234 #define _bfd_generic_bfd_set_private_flags \
 235   ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
 236 #define _bfd_generic_bfd_copy_private_section_data \
 237   ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true)
 238 #define _bfd_generic_bfd_copy_private_symbol_data \
 239   ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true)
 240 #define _bfd_generic_bfd_copy_private_header_data \
 241   ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
 242 #define _bfd_generic_bfd_print_private_bfd_data \
 243   ((bfd_boolean (*) (bfd *, void *)) bfd_true)
 244
 245 extern bfd_boolean _bfd_generic_init_private_section_data
 246   (bfd *, asection *, bfd *, asection *, struct bfd_link_info *);
 247
 248 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file
 249    support.  Use BFD_JUMP_TABLE_CORE (_bfd_nocore).  */
 250
 251 extern char *_bfd_nocore_core_file_failing_command
 252   (bfd *);
 253 extern int _bfd_nocore_core_file_failing_signal
 254   (bfd *);
 255 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p
 256   (bfd *, bfd *);
 257
 258 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive
 259    file support.  Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive).  */
 260
 261 #define _bfd_noarchive_slurp_armap bfd_false
 262 #define _bfd_noarchive_slurp_extended_name_table bfd_false
 263 #define _bfd_noarchive_construct_extended_name_table \
 264   ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \
 265    bfd_false)
 266 #define _bfd_noarchive_truncate_arname \
 267   ((void (*) (bfd *, const char *, char *)) bfd_void)
 268 #define _bfd_noarchive_write_armap \
 269   ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \
 270    bfd_false)
 271 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr
 272 #define _bfd_noarchive_openr_next_archived_file \
 273   ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr)
 274 #define _bfd_noarchive_get_elt_at_index \
 275   ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr)
 276 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt
 277 #define _bfd_noarchive_update_armap_timestamp bfd_false
 278
 279 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style
 280    archives.  Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd).  */
 281
 282 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap
 283 #define _bfd_archive_bsd_slurp_extended_name_table \
 284   _bfd_slurp_extended_name_table
 285 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table
 286   (bfd *, char **, bfd_size_type *, const char **);
 287 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname
 288 #define _bfd_archive_bsd_write_armap bsd_write_armap
 289 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr
 290 #define _bfd_archive_bsd_openr_next_archived_file \
 291   bfd_generic_openr_next_archived_file
 292 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index
 293 #define _bfd_archive_bsd_generic_stat_arch_elt \
 294   bfd_generic_stat_arch_elt
 295 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp
 296   (bfd *);
 297
 298 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style
 299    archives.  Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff).  */
 300
 301 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap
 302 #define _bfd_archive_coff_slurp_extended_name_table \
 303   _bfd_slurp_extended_name_table
 304 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table
 305   (bfd *, char **, bfd_size_type *, const char **);
 306 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname
 307 #define _bfd_archive_coff_write_armap coff_write_armap
 308 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr
 309 #define _bfd_archive_coff_openr_next_archived_file \
 310   bfd_generic_openr_next_archived_file
 311 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index
 312 #define _bfd_archive_coff_generic_stat_arch_elt \
 313   bfd_generic_stat_arch_elt
 314 #define _bfd_archive_coff_update_armap_timestamp bfd_true
 315
 316 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol
 317    support.  Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols).  */
 318
 319 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1
 320 #define _bfd_nosymbols_canonicalize_symtab \
 321   ((long (*) (bfd *, asymbol **)) _bfd_n1)
 322 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol
 323 #define _bfd_nosymbols_print_symbol \
 324   ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void)
 325 #define _bfd_nosymbols_get_symbol_info \
 326   ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void)
 327 #define _bfd_nosymbols_bfd_is_local_label_name \
 328   ((bfd_boolean (*) (bfd *, const char *)) bfd_false)
 329 #define _bfd_nosymbols_bfd_is_target_special_symbol \
 330   ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
 331 #define _bfd_nosymbols_get_lineno \
 332   ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr)
 333 #define _bfd_nosymbols_find_nearest_line \
 334   ((bfd_boolean (*) (bfd *, asection *, asymbol **, bfd_vma, const char **, \
 335                      const char **, unsigned int *)) \
 336    bfd_false)
 337 #define _bfd_nosymbols_find_inliner_info \
 338   ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \
 339    bfd_false)
 340 #define _bfd_nosymbols_bfd_make_debug_symbol \
 341   ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
 342 #define _bfd_nosymbols_read_minisymbols \
 343   ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1)
 344 #define _bfd_nosymbols_minisymbol_to_symbol \
 345   ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \
 346    bfd_nullvoidptr)
 347
 348 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc
 349    support.  Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs).  */
 350
 351 #define _bfd_norelocs_get_reloc_upper_bound \
 352   ((long (*) (bfd *, asection *)) _bfd_n1)
 353 #define _bfd_norelocs_canonicalize_reloc \
 354   ((long (*) (bfd *, asection *, arelent **, asymbol **)) _bfd_n1)
 355 #define _bfd_norelocs_bfd_reloc_type_lookup \
 356   ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr)
 357
 358 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not
 359    be written.  Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite).  */
 360
 361 #define _bfd_nowrite_set_arch_mach \
 362   ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \
 363    bfd_false)
 364 #define _bfd_nowrite_set_section_contents \
 365   ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \
 366    bfd_false)
 367
 368 /* Generic routines to use for BFD_JUMP_TABLE_WRITE.  Use
 369    BFD_JUMP_TABLE_WRITE (_bfd_generic).  */
 370
 371 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach
 372 extern bfd_boolean _bfd_generic_set_section_contents
 373   (bfd *, asection *, const void *, file_ptr, bfd_size_type);
 374
 375 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not
 376    support linking.  Use BFD_JUMP_TABLE_LINK (_bfd_nolink).  */
 377
 378 #define _bfd_nolink_sizeof_headers \
 379   ((int (*) (bfd *, struct bfd_link_info *)) bfd_0)
 380 #define _bfd_nolink_bfd_get_relocated_section_contents \
 381   ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \
 382                    bfd_byte *, bfd_boolean, asymbol **)) \
 383    bfd_nullvoidptr)
 384 #define _bfd_nolink_bfd_relax_section \
 385   ((bfd_boolean (*) \
 386     (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \
 387    bfd_false)
 388 #define _bfd_nolink_bfd_gc_sections \
 389   ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
 390    bfd_false)
 391 #define _bfd_nolink_bfd_merge_sections \
 392   ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
 393    bfd_false)
 394 #define _bfd_nolink_bfd_is_group_section \
 395   ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \
 396    bfd_false)
 397 #define _bfd_nolink_bfd_discard_group \
 398   ((bfd_boolean (*) (bfd *, struct bfd_section *)) \
 399    bfd_false)
 400 #define _bfd_nolink_bfd_link_hash_table_create \
 401   ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr)
 402 #define _bfd_nolink_bfd_link_hash_table_free \
 403   ((void (*) (struct bfd_link_hash_table *)) bfd_void)
 404 #define _bfd_nolink_bfd_link_add_symbols \
 405   ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
 406 #define _bfd_nolink_bfd_link_just_syms \
 407   ((void (*) (asection *, struct bfd_link_info *)) bfd_void)
 408 #define _bfd_nolink_bfd_final_link \
 409   ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
 410 #define _bfd_nolink_bfd_link_split_section \
 411   ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false)
 412 #define _bfd_nolink_section_already_linked \
 413   ((void (*) (bfd *, struct bfd_section *, struct bfd_link_info *)) bfd_void)
 414
 415 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not
 416    have dynamic symbols or relocs.  Use BFD_JUMP_TABLE_DYNAMIC
 417    (_bfd_nodynamic).  */
 418
 419 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1
 420 #define _bfd_nodynamic_canonicalize_dynamic_symtab \
 421   ((long (*) (bfd *, asymbol **)) _bfd_n1)
 422 #define _bfd_nodynamic_get_synthetic_symtab \
 423   ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1)
 424 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1
 425 #define _bfd_nodynamic_canonicalize_dynamic_reloc \
 426   ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1)
 427 \f
 428 /* Generic routine to determine of the given symbol is a local
 429    label.  */
 430 extern bfd_boolean bfd_generic_is_local_label_name
 431   (bfd *, const char *);
 432
 433 /* Generic minisymbol routines.  */
 434 extern long _bfd_generic_read_minisymbols
 435   (bfd *, bfd_boolean, void **, unsigned int *);
 436 extern asymbol *_bfd_generic_minisymbol_to_symbol
 437   (bfd *, bfd_boolean, const void *, asymbol *);
 438
 439 /* Find the nearest line using .stab/.stabstr sections.  */
 440 extern bfd_boolean _bfd_stab_section_find_nearest_line
 441   (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *,
 442    const char **, const char **, unsigned int *, void **);
 443
 444 /* Find the nearest line using DWARF 1 debugging information.  */
 445 extern bfd_boolean _bfd_dwarf1_find_nearest_line
 446   (bfd *, asection *, asymbol **, bfd_vma, const char **,
 447    const char **, unsigned int *);
 448
 449 /* Find the nearest line using DWARF 2 debugging information.  */
 450 extern bfd_boolean _bfd_dwarf2_find_nearest_line
 451   (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **,
 452    unsigned int *, unsigned int, void **);
 453
 454 /* Find the line using DWARF 2 debugging information.  */
 455 extern bfd_boolean _bfd_dwarf2_find_line
 456   (bfd *, asymbol **, asymbol *, const char **,
 457    unsigned int *, unsigned int, void **);
 458
 459 bfd_boolean _bfd_generic_find_line
 460   (bfd *, asymbol **, asymbol *, const char **, unsigned int *);
 461
 462 /* Find inliner info after calling bfd_find_nearest_line. */
 463 extern bfd_boolean _bfd_dwarf2_find_inliner_info
 464   (bfd *, const char **, const char **, unsigned int *, void **);
 465
 466 /* Create a new section entry.  */
 467 extern struct bfd_hash_entry *bfd_section_hash_newfunc
 468   (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
 469
 470 /* A routine to create entries for a bfd_link_hash_table.  */
 471 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
 472   (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
 473    const char *string);
 474
 475 /* Initialize a bfd_link_hash_table.  */
 476 extern bfd_boolean _bfd_link_hash_table_init
 477   (struct bfd_link_hash_table *, bfd *,
 478    struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 479                                struct bfd_hash_table *,
 480                                const char *),
 481    unsigned int);
 482
 483 /* Generic link hash table creation routine.  */
 484 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
 485   (bfd *);
 486
 487 /* Generic link hash table destruction routine.  */
 488 extern void _bfd_generic_link_hash_table_free
 489   (struct bfd_link_hash_table *);
 490
 491 /* Generic add symbol routine.  */
 492 extern bfd_boolean _bfd_generic_link_add_symbols
 493   (bfd *, struct bfd_link_info *);
 494
 495 /* Generic add symbol routine.  This version is used by targets for
 496    which the linker must collect constructors and destructors by name,
 497    as the collect2 program does.  */
 498 extern bfd_boolean _bfd_generic_link_add_symbols_collect
 499   (bfd *, struct bfd_link_info *);
 500
 501 /* Generic archive add symbol routine.  */
 502 extern bfd_boolean _bfd_generic_link_add_archive_symbols
 503   (bfd *, struct bfd_link_info *,
 504    bfd_boolean (*) (bfd *, struct bfd_link_info *, bfd_boolean *));
 505
 506 /* Forward declaration to avoid prototype errors.  */
 507 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
 508
 509 /* Generic routine to add a single symbol.  */
 510 extern bfd_boolean _bfd_generic_link_add_one_symbol
 511   (struct bfd_link_info *, bfd *, const char *name, flagword,
 512    asection *, bfd_vma, const char *, bfd_boolean copy,
 513    bfd_boolean constructor, struct bfd_link_hash_entry **);
 514
 515 /* Generic routine to mark section as supplying symbols only.  */
 516 extern void _bfd_generic_link_just_syms
 517   (asection *, struct bfd_link_info *);
 518
 519 /* Generic link routine.  */
 520 extern bfd_boolean _bfd_generic_final_link
 521   (bfd *, struct bfd_link_info *);
 522
 523 extern bfd_boolean _bfd_generic_link_split_section
 524   (bfd *, struct bfd_section *);
 525
 526 extern void _bfd_generic_section_already_linked
 527   (bfd *, struct bfd_section *, struct bfd_link_info *);
 528
 529 /* Generic reloc_link_order processing routine.  */
 530 extern bfd_boolean _bfd_generic_reloc_link_order
 531   (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
 532
 533 /* Default link order processing routine.  */
 534 extern bfd_boolean _bfd_default_link_order
 535   (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
 536
 537 /* Count the number of reloc entries in a link order list.  */
 538 extern unsigned int _bfd_count_link_order_relocs
 539   (struct bfd_link_order *);
 540
 541 /* Final link relocation routine.  */
 542 extern bfd_reloc_status_type _bfd_final_link_relocate
 543   (reloc_howto_type *, bfd *, asection *, bfd_byte *,
 544    bfd_vma, bfd_vma, bfd_vma);
 545
 546 /* Relocate a particular location by a howto and a value.  */
 547 extern bfd_reloc_status_type _bfd_relocate_contents
 548   (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *);
 549
 550 /* Link stabs in sections in the first pass.  */
 551
 552 extern bfd_boolean _bfd_link_section_stabs
 553   (bfd *, struct stab_info *, asection *, asection *, void **,
 554    bfd_size_type *);
 555
 556 /* Eliminate stabs for discarded functions and symbols.  */
 557 extern bfd_boolean _bfd_discard_section_stabs
 558   (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *);
 559
 560 /* Write out the .stab section when linking stabs in sections.  */
 561
 562 extern bfd_boolean _bfd_write_section_stabs
 563   (bfd *, struct stab_info *, asection *, void **, bfd_byte *);
 564
 565 /* Write out the .stabstr string table when linking stabs in sections.  */
 566
 567 extern bfd_boolean _bfd_write_stab_strings
 568   (bfd *, struct stab_info *);
 569
 570 /* Find an offset within a .stab section when linking stabs in
 571    sections.  */
 572
 573 extern bfd_vma _bfd_stab_section_offset
 574   (asection *, void *, bfd_vma);
 575
 576 /* Register a SEC_MERGE section as a candidate for merging.  */
 577
 578 extern bfd_boolean _bfd_add_merge_section
 579   (bfd *, void **, asection *, void **);
 580
 581 /* Attempt to merge SEC_MERGE sections.  */
 582
 583 extern bfd_boolean _bfd_merge_sections
 584   (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *));
 585
 586 /* Write out a merged section.  */
 587
 588 extern bfd_boolean _bfd_write_merged_section
 589   (bfd *, asection *, void *);
 590
 591 /* Find an offset within a modified SEC_MERGE section.  */
 592
 593 extern bfd_vma _bfd_merged_section_offset
 594   (bfd *, asection **, void *, bfd_vma);
 595
 596 /* Create a string table.  */
 597 extern struct bfd_strtab_hash *_bfd_stringtab_init
 598   (void);
 599
 600 /* Create an XCOFF .debug section style string table.  */
 601 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init
 602   (void);
 603
 604 /* Free a string table.  */
 605 extern void _bfd_stringtab_free
 606   (struct bfd_strtab_hash *);
 607
 608 /* Get the size of a string table.  */
 609 extern bfd_size_type _bfd_stringtab_size
 610   (struct bfd_strtab_hash *);
 611
 612 /* Add a string to a string table.  */
 613 extern bfd_size_type _bfd_stringtab_add
 614   (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy);
 615
 616 /* Write out a string table.  */
 617 extern bfd_boolean _bfd_stringtab_emit
 618   (bfd *, struct bfd_strtab_hash *);
 619
 620 /* Check that endianness of input and output file match.  */
 621 extern bfd_boolean _bfd_generic_verify_endian_match
 622   (bfd *, bfd *);
 623 \f
 624 /* Macros to tell if bfds are read or write enabled.
 625
 626    Note that bfds open for read may be scribbled into if the fd passed
 627    to bfd_fdopenr is actually open both for read and write
 628    simultaneously.  However an output bfd will never be open for
 629    read.  Therefore sometimes you want to check bfd_read_p or
 630    !bfd_read_p, and only sometimes bfd_write_p.
 631 */
 632
 633 #define bfd_read_p(abfd) \
 634   ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
 635 #define bfd_write_p(abfd) \
 636   ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
 637
 638 void bfd_assert
 639   (const char*,int);
 640
 641 #define BFD_ASSERT(x) \
 642   do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0)
 643
 644 #define BFD_FAIL() \
 645   do { bfd_assert(__FILE__,__LINE__); } while (0)
 646
 647 extern void _bfd_abort
 648   (const char *, int, const char *) ATTRIBUTE_NORETURN;
 649
 650 /* if gcc >= 2.6, we can give a function name, too */
 651 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
 652 #define __PRETTY_FUNCTION__  ((char *) NULL)
 653 #endif
 654
 655 #undef abort
 656 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
 657
 658 /* Manipulate a system FILE but using BFD's "file_ptr", rather than
 659    the system "off_t" or "off64_t", as the offset.  */
 660 extern file_ptr real_ftell (FILE *file);
 661 extern int real_fseek (FILE *file, file_ptr offset, int whence);
 662 extern FILE *real_fopen (const char *filename, const char *modes);
 663
 664 /* List of supported target vectors, and the default vector (if
 665    bfd_default_vector[0] is NULL, there is no default).  */
 666 extern const bfd_target * const *bfd_target_vector;
 667 extern const bfd_target *bfd_default_vector[];
 668
 669 /* List of associated target vectors.  */
 670 extern const bfd_target * const *bfd_associated_vector;
 671
 672 /* Functions shared by the ECOFF and MIPS ELF backends, which have no
 673    other common header files.  */
 674
 675 #if defined(__STDC__) || defined(ALMOST_STDC)
 676 struct ecoff_find_line;
 677 #endif
 678
 679 extern bfd_boolean _bfd_ecoff_locate_line
 680   (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const,
 681    const struct ecoff_debug_swap * const, struct ecoff_find_line *,
 682    const char **, const char **, unsigned int *);
 683 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr
 684   (void *, bfd_byte *);
 685 extern bfd_boolean _bfd_ecoff_get_accumulated_sym
 686   (void *, bfd_byte *);
 687 extern bfd_boolean _bfd_ecoff_get_accumulated_ss
 688   (void *, bfd_byte *);
 689
 690 extern bfd_vma _bfd_get_gp_value
 691   (bfd *);
 692 extern void _bfd_set_gp_value
 693   (bfd *, bfd_vma);
 694
 695 /* Function shared by the COFF and ELF SH backends, which have no
 696    other common header files.  */
 697
 698 #ifndef _bfd_sh_align_load_span
 699 extern bfd_boolean _bfd_sh_align_load_span
 700   (bfd *, asection *, bfd_byte *,
 701    bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma),
 702    void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *);
 703 #endif
 704
 705 /* This is the shape of the elements inside the already_linked hash
 706    table. It maps a name onto a list of already_linked elements with
 707    the same name.  */
 708
 709 struct bfd_section_already_linked_hash_entry
 710 {
 711   struct bfd_hash_entry root;
 712   struct bfd_section_already_linked *entry;
 713 };
 714
 715 struct bfd_section_already_linked
 716 {
 717   struct bfd_section_already_linked *next;
 718   asection *sec;
 719 };
 720
 721 extern struct bfd_section_already_linked_hash_entry *
 722   bfd_section_already_linked_table_lookup (const char *);
 723 extern void bfd_section_already_linked_table_insert
 724   (struct bfd_section_already_linked_hash_entry *, asection *);
 725 extern void bfd_section_already_linked_table_traverse
 726   (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *,
 727                     void *), void *);
 728
 729 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *);
 730 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *);
 731