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    Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   4    2000, 2001
   5    Free Software Foundation, Inc.
   6    Written by Cygnus Support.
   7
   8 This file is part of BFD, the Binary File Descriptor library.
   9
  10 This program is free software; you can redistribute it and/or modify
  11 it under the terms of the GNU General Public License as published by
  12 the Free Software Foundation; either version 2 of the License, or
  13 (at your option) any later version.
  14
  15 This program is distributed in the hope that it will be useful,
  16 but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 GNU General Public License for more details.
  19
  20 You should have received a copy of the GNU General Public License
  21 along with this program; if not, write to the Free Software
  22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  23
  24 /* Align an address upward to a boundary, expressed as a number of bytes.
  25    E.g. align to an 8-byte boundary with argument of 8.  Take care never
  26    to wrap around if the address is within boundary-1 of the end of the
  27    address space.  */
  28 #define BFD_ALIGN(this, boundary)                                         \
  29   ((((bfd_vma) (this) + (boundary) - 1) >= (bfd_vma) (this))              \
  30    ? (((bfd_vma) (this) + ((boundary) - 1)) & ~ (bfd_vma) ((boundary)-1)) \
  31    : ~ (bfd_vma) 0)
  32
  33 /* If you want to read and write large blocks, you might want to do it
  34    in quanta of this amount */
  35 #define DEFAULT_BUFFERSIZE 8192
  36
  37 /* Set a tdata field.  Can't use the other macros for this, since they
  38    do casts, and casting to the left of assignment isn't portable.  */
  39 #define set_tdata(bfd, v) ((bfd)->tdata.any = (PTR) (v))
  40
  41 /* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points
  42    to an instance of this structure.  */
  43
  44 struct bfd_in_memory
  45 {
  46   /* Size of buffer.  */
  47   bfd_size_type size;
  48   /* Buffer holding contents of BFD.  */
  49   bfd_byte *buffer;
  50 };
  51
  52 /* tdata for an archive.  For an input archive, cache
  53    needs to be free()'d.  For an output archive, symdefs do.  */
  54
  55 struct artdata {
  56   file_ptr first_file_filepos;
  57   /* Speed up searching the armap */
  58   struct ar_cache *cache;
  59   bfd *archive_head;            /* Only interesting in output routines */
  60   carsym *symdefs;              /* the symdef entries */
  61   symindex symdef_count;        /* how many there are */
  62   char *extended_names;         /* clever intel extension */
  63   /* when more compilers are standard C, this can be a time_t */
  64   long  armap_timestamp;        /* Timestamp value written into armap.
  65                                    This is used for BSD archives to check
  66                                    that the timestamp is recent enough
  67                                    for the BSD linker to not complain,
  68                                    just before we finish writing an
  69                                    archive.  */
  70   file_ptr armap_datepos;       /* Position within archive to seek to
  71                                    rewrite the date field.  */
  72   PTR tdata;                    /* Backend specific information.  */
  73 };
  74
  75 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data)
  76
  77 /* Goes in bfd's arelt_data slot */
  78 struct areltdata {
  79   char * arch_header;           /* it's actually a string */
  80   unsigned int parsed_size;     /* octets of filesize not including ar_hdr */
  81   char *filename;               /* null-terminated */
  82 };
  83
  84 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
  85
  86 extern PTR bfd_malloc PARAMS ((bfd_size_type));
  87 extern PTR bfd_realloc PARAMS ((PTR, bfd_size_type));
  88 extern PTR bfd_zmalloc PARAMS ((bfd_size_type));
  89
  90 extern bfd_error_handler_type _bfd_error_handler;
  91
  92 /* These routines allocate and free things on the BFD's objalloc.  */
  93
  94 extern PTR bfd_alloc PARAMS ((bfd *, bfd_size_type));
  95 extern PTR bfd_zalloc PARAMS ((bfd *, bfd_size_type));
  96 extern void bfd_release PARAMS ((bfd *, PTR));
  97
  98 bfd *   _bfd_create_empty_archive_element_shell PARAMS ((bfd *obfd));
  99 bfd *   _bfd_look_for_bfd_in_cache PARAMS ((bfd *, file_ptr));
 100 boolean _bfd_add_bfd_to_archive_cache PARAMS ((bfd *, file_ptr, bfd *));
 101 boolean _bfd_generic_mkarchive PARAMS ((bfd *abfd));
 102 const bfd_target *bfd_generic_archive_p PARAMS ((bfd *abfd));
 103 boolean bfd_slurp_armap PARAMS ((bfd *abfd));
 104 boolean bfd_slurp_bsd_armap_f2 PARAMS ((bfd *abfd));
 105 #define bfd_slurp_bsd_armap bfd_slurp_armap
 106 #define bfd_slurp_coff_armap bfd_slurp_armap
 107 boolean _bfd_slurp_extended_name_table PARAMS ((bfd *abfd));
 108 extern boolean _bfd_construct_extended_name_table
 109   PARAMS ((bfd *, boolean, char **, bfd_size_type *));
 110 boolean _bfd_write_archive_contents PARAMS ((bfd *abfd));
 111 boolean _bfd_compute_and_write_armap PARAMS ((bfd *, unsigned int elength));
 112 bfd *_bfd_get_elt_at_filepos PARAMS ((bfd *archive, file_ptr filepos));
 113 extern bfd *_bfd_generic_get_elt_at_index PARAMS ((bfd *, symindex));
 114 bfd * _bfd_new_bfd PARAMS ((void));
 115
 116 boolean bfd_false PARAMS ((bfd *ignore));
 117 boolean bfd_true PARAMS ((bfd *ignore));
 118 PTR     bfd_nullvoidptr PARAMS ((bfd *ignore));
 119 int     bfd_0 PARAMS ((bfd *ignore));
 120 unsigned int    bfd_0u PARAMS ((bfd *ignore));
 121 long    bfd_0l PARAMS ((bfd *ignore));
 122 long    _bfd_n1 PARAMS ((bfd *ignore));
 123 void    bfd_void PARAMS ((bfd *ignore));
 124
 125 bfd *_bfd_new_bfd_contained_in PARAMS ((bfd *));
 126 const bfd_target *_bfd_dummy_target PARAMS ((bfd *abfd));
 127
 128 void    bfd_dont_truncate_arname PARAMS ((bfd *abfd, const char *filename,
 129                                         char *hdr));
 130 void    bfd_bsd_truncate_arname PARAMS ((bfd *abfd, const char *filename,
 131                                         char *hdr));
 132 void    bfd_gnu_truncate_arname PARAMS ((bfd *abfd, const char *filename,
 133                                         char *hdr));
 134
 135 boolean bsd_write_armap PARAMS ((bfd *arch, unsigned int elength,
 136                                   struct orl *map, unsigned int orl_count, int stridx));
 137
 138 boolean coff_write_armap PARAMS ((bfd *arch, unsigned int elength,
 139                                    struct orl *map, unsigned int orl_count, int stridx));
 140
 141 extern PTR _bfd_generic_read_ar_hdr PARAMS ((bfd *));
 142
 143 extern PTR _bfd_generic_read_ar_hdr_mag PARAMS ((bfd *, const char *));
 144
 145 bfd *   bfd_generic_openr_next_archived_file PARAMS ((bfd *archive,
 146                                                      bfd *last_file));
 147
 148 int     bfd_generic_stat_arch_elt PARAMS ((bfd *, struct stat *));
 149
 150 #define _bfd_read_ar_hdr(abfd) \
 151   BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd))
 152 \f
 153 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC.  Use
 154    BFD_JUMP_TABLE_GENERIC (_bfd_generic).  */
 155
 156 #define _bfd_generic_close_and_cleanup bfd_true
 157 #define _bfd_generic_bfd_free_cached_info bfd_true
 158 #define _bfd_generic_new_section_hook \
 159   ((boolean (*) PARAMS ((bfd *, asection *))) bfd_true)
 160 extern boolean _bfd_generic_get_section_contents
 161   PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
 162 extern boolean _bfd_generic_get_section_contents_in_window
 163   PARAMS ((bfd *, asection *, bfd_window *, file_ptr, bfd_size_type));
 164
 165 /* Generic routines to use for BFD_JUMP_TABLE_COPY.  Use
 166    BFD_JUMP_TABLE_COPY (_bfd_generic).  */
 167
 168 #define _bfd_generic_bfd_copy_private_bfd_data \
 169   ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true)
 170 #define _bfd_generic_bfd_merge_private_bfd_data \
 171   ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true)
 172 #define _bfd_generic_bfd_set_private_flags \
 173   ((boolean (*) PARAMS ((bfd *, flagword))) bfd_true)
 174 #define _bfd_generic_bfd_copy_private_section_data \
 175   ((boolean (*) PARAMS ((bfd *, asection *, bfd *, asection *))) bfd_true)
 176 #define _bfd_generic_bfd_copy_private_symbol_data \
 177   ((boolean (*) PARAMS ((bfd *, asymbol *, bfd *, asymbol *))) bfd_true)
 178 #define _bfd_generic_bfd_print_private_bfd_data \
 179   ((boolean (*) PARAMS ((bfd *, PTR))) bfd_true)
 180
 181 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file
 182    support.  Use BFD_JUMP_TABLE_CORE (_bfd_nocore).  */
 183
 184 extern char *_bfd_nocore_core_file_failing_command PARAMS ((bfd *));
 185 extern int _bfd_nocore_core_file_failing_signal PARAMS ((bfd *));
 186 extern boolean _bfd_nocore_core_file_matches_executable_p
 187   PARAMS ((bfd *, bfd *));
 188
 189 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive
 190    file support.  Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive).  */
 191
 192 #define _bfd_noarchive_slurp_armap bfd_false
 193 #define _bfd_noarchive_slurp_extended_name_table bfd_false
 194 #define _bfd_noarchive_construct_extended_name_table \
 195   ((boolean (*) PARAMS ((bfd *, char **, bfd_size_type *, const char **))) \
 196    bfd_false)
 197 #define _bfd_noarchive_truncate_arname \
 198   ((void (*) PARAMS ((bfd *, const char *, char *))) bfd_void)
 199 #define _bfd_noarchive_write_armap \
 200   ((boolean (*) \
 201     PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int))) \
 202    bfd_false)
 203 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr
 204 #define _bfd_noarchive_openr_next_archived_file \
 205   ((bfd *(*) PARAMS ((bfd *, bfd *))) bfd_nullvoidptr)
 206 #define _bfd_noarchive_get_elt_at_index \
 207   ((bfd *(*) PARAMS ((bfd *, symindex))) bfd_nullvoidptr)
 208 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt
 209 #define _bfd_noarchive_update_armap_timestamp bfd_false
 210
 211 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style
 212    archives.  Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd).  */
 213
 214 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap
 215 #define _bfd_archive_bsd_slurp_extended_name_table \
 216   _bfd_slurp_extended_name_table
 217 extern boolean _bfd_archive_bsd_construct_extended_name_table
 218   PARAMS ((bfd *, char **, bfd_size_type *, const char **));
 219 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname
 220 #define _bfd_archive_bsd_write_armap bsd_write_armap
 221 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr
 222 #define _bfd_archive_bsd_openr_next_archived_file \
 223   bfd_generic_openr_next_archived_file
 224 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index
 225 #define _bfd_archive_bsd_generic_stat_arch_elt \
 226   bfd_generic_stat_arch_elt
 227 extern boolean _bfd_archive_bsd_update_armap_timestamp PARAMS ((bfd *));
 228
 229 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style
 230    archives.  Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff).  */
 231
 232 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap
 233 #define _bfd_archive_coff_slurp_extended_name_table \
 234   _bfd_slurp_extended_name_table
 235 extern boolean _bfd_archive_coff_construct_extended_name_table
 236   PARAMS ((bfd *, char **, bfd_size_type *, const char **));
 237 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname
 238 #define _bfd_archive_coff_write_armap coff_write_armap
 239 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr
 240 #define _bfd_archive_coff_openr_next_archived_file \
 241   bfd_generic_openr_next_archived_file
 242 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index
 243 #define _bfd_archive_coff_generic_stat_arch_elt \
 244   bfd_generic_stat_arch_elt
 245 #define _bfd_archive_coff_update_armap_timestamp bfd_true
 246
 247 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol
 248    support.  Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols).  */
 249
 250 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1
 251 #define _bfd_nosymbols_get_symtab \
 252   ((long (*) PARAMS ((bfd *, asymbol **))) _bfd_n1)
 253 #define _bfd_nosymbols_make_empty_symbol \
 254   ((asymbol *(*) PARAMS ((bfd *))) bfd_nullvoidptr)
 255 #define _bfd_nosymbols_print_symbol \
 256   ((void (*) PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type))) bfd_void)
 257 #define _bfd_nosymbols_get_symbol_info \
 258   ((void (*) PARAMS ((bfd *, asymbol *, symbol_info *))) bfd_void)
 259 #define _bfd_nosymbols_bfd_is_local_label_name \
 260   ((boolean (*) PARAMS ((bfd *, const char *))) bfd_false)
 261 #define _bfd_nosymbols_get_lineno \
 262   ((alent *(*) PARAMS ((bfd *, asymbol *))) bfd_nullvoidptr)
 263 #define _bfd_nosymbols_find_nearest_line \
 264   ((boolean (*) \
 265     PARAMS ((bfd *, asection *, asymbol **, bfd_vma, const char **, \
 266              const char **, unsigned int *))) \
 267    bfd_false)
 268 #define _bfd_nosymbols_bfd_make_debug_symbol \
 269   ((asymbol *(*) PARAMS ((bfd *, PTR, unsigned long))) bfd_nullvoidptr)
 270 #define _bfd_nosymbols_read_minisymbols \
 271   ((long (*) PARAMS ((bfd *, boolean, PTR *, unsigned int *))) _bfd_n1)
 272 #define _bfd_nosymbols_minisymbol_to_symbol \
 273   ((asymbol *(*) PARAMS ((bfd *, boolean, const PTR, asymbol *))) \
 274    bfd_nullvoidptr)
 275
 276 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc
 277    support.  Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs).  */
 278
 279 #define _bfd_norelocs_get_reloc_upper_bound \
 280   ((long (*) PARAMS ((bfd *, asection *))) _bfd_n1)
 281 #define _bfd_norelocs_canonicalize_reloc \
 282   ((long (*) PARAMS ((bfd *, asection *, arelent **, asymbol **))) _bfd_n1)
 283 #define _bfd_norelocs_bfd_reloc_type_lookup \
 284   ((reloc_howto_type *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) \
 285    bfd_nullvoidptr)
 286
 287 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not
 288    be written.  Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite).  */
 289
 290 #define _bfd_nowrite_set_arch_mach \
 291   ((boolean (*) PARAMS ((bfd *, enum bfd_architecture, unsigned long))) \
 292    bfd_false)
 293 #define _bfd_nowrite_set_section_contents \
 294   ((boolean (*) PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type))) \
 295    bfd_false)
 296
 297 /* Generic routines to use for BFD_JUMP_TABLE_WRITE.  Use
 298    BFD_JUMP_TABLE_WRITE (_bfd_generic).  */
 299
 300 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach
 301 extern boolean _bfd_generic_set_section_contents
 302   PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
 303
 304 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not
 305    support linking.  Use BFD_JUMP_TABLE_LINK (_bfd_nolink).  */
 306
 307 #define _bfd_nolink_sizeof_headers ((int (*) PARAMS ((bfd *, boolean))) bfd_0)
 308 #define _bfd_nolink_bfd_get_relocated_section_contents \
 309   ((bfd_byte *(*) \
 310     PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, \
 311              bfd_byte *, boolean, asymbol **))) \
 312    bfd_nullvoidptr)
 313 #define _bfd_nolink_bfd_relax_section \
 314   ((boolean (*) \
 315     PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *))) \
 316    bfd_false)
 317 #define _bfd_nolink_bfd_gc_sections \
 318   ((boolean (*) \
 319     PARAMS ((bfd *, struct bfd_link_info *))) \
 320    bfd_false)
 321 #define _bfd_nolink_bfd_merge_sections \
 322   ((boolean (*) \
 323     PARAMS ((bfd *, struct bfd_link_info *))) \
 324    bfd_false)
 325 #define _bfd_nolink_bfd_link_hash_table_create \
 326   ((struct bfd_link_hash_table *(*) PARAMS ((bfd *))) bfd_nullvoidptr)
 327 #define _bfd_nolink_bfd_link_add_symbols \
 328   ((boolean (*) PARAMS ((bfd *, struct bfd_link_info *))) bfd_false)
 329 #define _bfd_nolink_bfd_final_link \
 330   ((boolean (*) PARAMS ((bfd *, struct bfd_link_info *))) bfd_false)
 331 #define _bfd_nolink_bfd_link_split_section \
 332   ((boolean (*) PARAMS ((bfd *, struct sec *))) bfd_false)
 333
 334 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not
 335    have dynamic symbols or relocs.  Use BFD_JUMP_TABLE_DYNAMIC
 336    (_bfd_nodynamic).  */
 337
 338 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1
 339 #define _bfd_nodynamic_canonicalize_dynamic_symtab \
 340   ((long (*) PARAMS ((bfd *, asymbol **))) _bfd_n1)
 341 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1
 342 #define _bfd_nodynamic_canonicalize_dynamic_reloc \
 343   ((long (*) PARAMS ((bfd *, arelent **, asymbol **))) _bfd_n1)
 344 \f
 345 /* Generic routine to determine of the given symbol is a local
 346    label.  */
 347 extern boolean bfd_generic_is_local_label_name PARAMS ((bfd *, const char *));
 348
 349 /* Generic minisymbol routines.  */
 350 extern long _bfd_generic_read_minisymbols
 351   PARAMS ((bfd *, boolean, PTR *, unsigned int *));
 352 extern asymbol *_bfd_generic_minisymbol_to_symbol
 353   PARAMS ((bfd *, boolean, const PTR, asymbol *));
 354
 355 /* Find the nearest line using .stab/.stabstr sections.  */
 356 extern boolean _bfd_stab_section_find_nearest_line
 357   PARAMS ((bfd *, asymbol **, asection *, bfd_vma, boolean *, const char **,
 358            const char **, unsigned int *, PTR *));
 359
 360 /* Find the neaderst line using DWARF 1 debugging information.  */
 361 extern boolean _bfd_dwarf1_find_nearest_line
 362   PARAMS ((bfd *, asection *, asymbol **, bfd_vma, const char **,
 363            const char **, unsigned int *));
 364
 365 /* Find the nearest line using DWARF 2 debugging information.  */
 366 extern boolean _bfd_dwarf2_find_nearest_line
 367   PARAMS ((bfd *, asection *, asymbol **, bfd_vma, const char **,
 368            const char **, unsigned int *, unsigned int,
 369            PTR *));
 370
 371 /* A routine to create entries for a bfd_link_hash_table.  */
 372 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
 373   PARAMS ((struct bfd_hash_entry *entry,
 374            struct bfd_hash_table *table,
 375            const char *string));
 376
 377 /* Initialize a bfd_link_hash_table.  */
 378 extern boolean _bfd_link_hash_table_init
 379   PARAMS ((struct bfd_link_hash_table *, bfd *,
 380            struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 381                                        struct bfd_hash_table *,
 382                                        const char *)));
 383
 384 /* Generic link hash table creation routine.  */
 385 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
 386   PARAMS ((bfd *));
 387
 388 /* Generic add symbol routine.  */
 389 extern boolean _bfd_generic_link_add_symbols
 390   PARAMS ((bfd *, struct bfd_link_info *));
 391
 392 /* Generic add symbol routine.  This version is used by targets for
 393    which the linker must collect constructors and destructors by name,
 394    as the collect2 program does.  */
 395 extern boolean _bfd_generic_link_add_symbols_collect
 396   PARAMS ((bfd *, struct bfd_link_info *));
 397
 398 /* Generic archive add symbol routine.  */
 399 extern boolean _bfd_generic_link_add_archive_symbols
 400   PARAMS ((bfd *, struct bfd_link_info *,
 401            boolean (*checkfn) (bfd *, struct bfd_link_info *, boolean *)));
 402
 403
 404
 405 /* Forward declaration to avoid prototype errors.  */
 406 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
 407
 408 /* Generic routine to add a single symbol.  */
 409 extern boolean _bfd_generic_link_add_one_symbol
 410   PARAMS ((struct bfd_link_info *, bfd *, const char *name, flagword,
 411            asection *, bfd_vma, const char *, boolean copy,
 412            boolean constructor, struct bfd_link_hash_entry **));
 413
 414 /* Generic link routine.  */
 415 extern boolean _bfd_generic_final_link
 416   PARAMS ((bfd *, struct bfd_link_info *));
 417
 418 extern boolean _bfd_generic_link_split_section
 419   PARAMS ((bfd *, struct sec *));
 420
 421 /* Generic reloc_link_order processing routine.  */
 422 extern boolean _bfd_generic_reloc_link_order
 423   PARAMS ((bfd *, struct bfd_link_info *, asection *,
 424            struct bfd_link_order *));
 425
 426 /* Default link order processing routine.  */
 427 extern boolean _bfd_default_link_order
 428   PARAMS ((bfd *, struct bfd_link_info *, asection *,
 429            struct bfd_link_order *));
 430
 431 /* Count the number of reloc entries in a link order list.  */
 432 extern unsigned int _bfd_count_link_order_relocs
 433   PARAMS ((struct bfd_link_order *));
 434
 435 /* Final link relocation routine.  */
 436 extern bfd_reloc_status_type _bfd_final_link_relocate
 437   PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
 438            bfd_vma, bfd_vma, bfd_vma));
 439
 440 /* Relocate a particular location by a howto and a value.  */
 441 extern bfd_reloc_status_type _bfd_relocate_contents
 442   PARAMS ((reloc_howto_type *, bfd *, bfd_vma, bfd_byte *));
 443
 444 /* Link stabs in sections in the first pass.  */
 445
 446 extern boolean _bfd_link_section_stabs
 447   PARAMS ((bfd *, PTR *, asection *, asection *, PTR *));
 448
 449 /* Eliminate stabs for discarded functions and symbols.  */
 450 extern boolean _bfd_discard_section_stabs
 451   PARAMS ((bfd *, asection *, PTR,
 452            boolean (*) (bfd_vma, PTR), PTR));
 453
 454 /* Write out the .stab section when linking stabs in sections.  */
 455
 456 extern boolean _bfd_write_section_stabs
 457   PARAMS ((bfd *, PTR *, asection *, PTR *, bfd_byte *));
 458
 459 /* Write out the .stabstr string table when linking stabs in sections.  */
 460
 461 extern boolean _bfd_write_stab_strings PARAMS ((bfd *, PTR *));
 462
 463 /* Find an offset within a .stab section when linking stabs in
 464    sections.  */
 465
 466 extern bfd_vma _bfd_stab_section_offset
 467   PARAMS ((bfd *, PTR *, asection *, PTR *, bfd_vma));
 468
 469 /* Attempt to merge a SEC_MERGE section.  */
 470
 471 extern boolean _bfd_merge_section
 472   PARAMS ((bfd *, PTR *, asection *, PTR *));
 473
 474 /* Attempt to merge SEC_MERGE sections.  */
 475
 476 extern boolean _bfd_merge_sections
 477   PARAMS ((bfd *, PTR));
 478
 479 /* Write out a merged section.  */
 480
 481 extern boolean _bfd_write_merged_section
 482   PARAMS ((bfd *, asection *, PTR));
 483
 484 /* Find an offset within a modified SEC_MERGE section.  */
 485
 486 extern bfd_vma _bfd_merged_section_offset
 487   PARAMS ((bfd *, asection **, PTR, bfd_vma, bfd_vma));
 488
 489 /* Create a string table.  */
 490 extern struct bfd_strtab_hash *_bfd_stringtab_init PARAMS ((void));
 491
 492 /* Create an XCOFF .debug section style string table.  */
 493 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init PARAMS ((void));
 494
 495 /* Free a string table.  */
 496 extern void _bfd_stringtab_free PARAMS ((struct bfd_strtab_hash *));
 497
 498 /* Get the size of a string table.  */
 499 extern bfd_size_type _bfd_stringtab_size PARAMS ((struct bfd_strtab_hash *));
 500
 501 /* Add a string to a string table.  */
 502 extern bfd_size_type _bfd_stringtab_add
 503   PARAMS ((struct bfd_strtab_hash *, const char *, boolean hash,
 504            boolean copy));
 505
 506 /* Write out a string table.  */
 507 extern boolean _bfd_stringtab_emit PARAMS ((bfd *, struct bfd_strtab_hash *));
 508
 509 /* Check that endianness of input and output file match.  */
 510 extern boolean _bfd_generic_verify_endian_match PARAMS ((bfd *, bfd *));
 511 \f
 512 /* Macros to tell if bfds are read or write enabled.
 513
 514    Note that bfds open for read may be scribbled into if the fd passed
 515    to bfd_fdopenr is actually open both for read and write
 516    simultaneously.  However an output bfd will never be open for
 517    read.  Therefore sometimes you want to check bfd_read_p or
 518    !bfd_read_p, and only sometimes bfd_write_p.
 519 */
 520
 521 #define bfd_read_p(abfd) ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
 522 #define bfd_write_p(abfd) ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
 523
 524 void    bfd_assert PARAMS ((const char*,int));
 525
 526 #define BFD_ASSERT(x) \
 527 { if (!(x)) bfd_assert(__FILE__,__LINE__); }
 528
 529 #define BFD_FAIL() \
 530 { bfd_assert(__FILE__,__LINE__); }
 531
 532 extern void _bfd_abort PARAMS ((const char *, int, const char *))
 533      ATTRIBUTE_NORETURN;
 534
 535 /* if gcc >= 2.6, we can give a function name, too */
 536 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
 537 #define __PRETTY_FUNCTION__  ((char *) NULL)
 538 #endif
 539
 540 #undef abort
 541 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
 542
 543 FILE *  bfd_cache_lookup_worker PARAMS ((bfd *));
 544
 545 extern bfd *bfd_last_cache;
 546
 547 /* List of supported target vectors, and the default vector (if
 548    bfd_default_vector[0] is NULL, there is no default).  */
 549 extern const bfd_target * const *bfd_target_vector;
 550 extern const bfd_target *bfd_default_vector[];
 551
 552 /* Functions shared by the ECOFF and MIPS ELF backends, which have no
 553    other common header files.  */
 554
 555 #if defined(__STDC__) || defined(ALMOST_STDC)
 556 struct ecoff_find_line;
 557 #endif
 558
 559 extern boolean _bfd_ecoff_locate_line
 560   PARAMS ((bfd *, asection *, bfd_vma, struct ecoff_debug_info * const,
 561            const struct ecoff_debug_swap * const, struct ecoff_find_line *,
 562            const char **, const char **, unsigned int *));
 563 extern boolean _bfd_ecoff_get_accumulated_pdr PARAMS ((PTR, bfd_byte *));
 564 extern boolean _bfd_ecoff_get_accumulated_sym PARAMS ((PTR, bfd_byte *));
 565 extern boolean _bfd_ecoff_get_accumulated_ss PARAMS ((PTR, bfd_byte *));
 566
 567 extern bfd_vma _bfd_get_gp_value PARAMS ((bfd *));
 568 extern void _bfd_set_gp_value PARAMS ((bfd *, bfd_vma));
 569
 570 /* Function shared by the COFF and ELF SH backends, which have no
 571    other common header files.  */
 572
 573 extern boolean _bfd_sh_align_load_span
 574   PARAMS ((bfd *, asection *, bfd_byte *,
 575            boolean (*) (bfd *, asection *, PTR, bfd_byte *, bfd_vma),
 576            PTR, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, boolean *));
 577
 578 /* And more follows */
 579