#define BFD_SEND(bfd, message, arglist) \
  ((*((bfd)->xvec->message)) arglist)

#ifdef DEBUG_BFD_SEND
#undef BFD_SEND
#define BFD_SEND(bfd, message, arglist) \
  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
    ((*((bfd)->xvec->message)) arglist) : \
    (bfd_assert (__FILE__,__LINE__), NULL))
#endif

#define BFD_SEND_FMT(bfd, message, arglist) \
  (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist)

#ifdef DEBUG_BFD_SEND
#undef BFD_SEND_FMT
#define BFD_SEND_FMT(bfd, message, arglist) \
  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
   (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \
   (bfd_assert (__FILE__,__LINE__), NULL))
#endif

enum bfd_flavour
{
  /* N.B. Update bfd_flavour_name if you change this.  */
  bfd_target_unknown_flavour,
  bfd_target_aout_flavour,
  bfd_target_coff_flavour,
  bfd_target_ecoff_flavour,
  bfd_target_xcoff_flavour,
  bfd_target_elf_flavour,
  bfd_target_tekhex_flavour,
  bfd_target_srec_flavour,
  bfd_target_verilog_flavour,
  bfd_target_ihex_flavour,
  bfd_target_som_flavour,
  bfd_target_os9k_flavour,
  bfd_target_versados_flavour,
  bfd_target_msdos_flavour,
  bfd_target_ovax_flavour,
  bfd_target_evax_flavour,
  bfd_target_mmo_flavour,
  bfd_target_mach_o_flavour,
  bfd_target_pef_flavour,
  bfd_target_pef_xlib_flavour,
  bfd_target_sym_flavour
};

enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };

/* Forward declaration.  */
typedef struct bfd_link_info _bfd_link_info;

/* Forward declaration.  */
typedef struct flag_info flag_info;

typedef struct bfd_target
{
  /* Identifies the kind of target, e.g., SunOS4, Ultrix, etc.  */
  char *name;

 /* The "flavour" of a back end is a general indication about
    the contents of a file.  */
  enum bfd_flavour flavour;

  /* The order of bytes within the data area of a file.  */
  enum bfd_endian byteorder;

 /* The order of bytes within the header parts of a file.  */
  enum bfd_endian header_byteorder;

  /* A mask of all the flags which an executable may have set -
     from the set BFD_NO_FLAGS, HAS_RELOC, ...D_PAGED.  */
  flagword object_flags;

 /* A mask of all the flags which a section may have set - from
    the set SEC_NO_FLAGS, SEC_ALLOC, ...SET_NEVER_LOAD.  */
  flagword section_flags;

 /* The character normally found at the front of a symbol.
    (if any), perhaps `_'.  */
  char symbol_leading_char;

 /* The pad character for file names within an archive header.  */
  char ar_pad_char;

  /* The maximum number of characters in an archive header.  */
  unsigned char ar_max_namelen;

  /* How well this target matches, used to select between various
     possible targets when more than one target matches.  */
  unsigned char match_priority;

  /* Entries for byte swapping for data. These are different from the
     other entry points, since they don't take a BFD as the first argument.
     Certain other handlers could do the same.  */
  bfd_uint64_t   (*bfd_getx64) (const void *);
  bfd_int64_t    (*bfd_getx_signed_64) (const void *);
  void           (*bfd_putx64) (bfd_uint64_t, void *);
  bfd_vma        (*bfd_getx32) (const void *);
  bfd_signed_vma (*bfd_getx_signed_32) (const void *);
  void           (*bfd_putx32) (bfd_vma, void *);
  bfd_vma        (*bfd_getx16) (const void *);
  bfd_signed_vma (*bfd_getx_signed_16) (const void *);
  void           (*bfd_putx16) (bfd_vma, void *);

  /* Byte swapping for the headers.  */
  bfd_uint64_t   (*bfd_h_getx64) (const void *);
  bfd_int64_t    (*bfd_h_getx_signed_64) (const void *);
  void           (*bfd_h_putx64) (bfd_uint64_t, void *);
  bfd_vma        (*bfd_h_getx32) (const void *);
  bfd_signed_vma (*bfd_h_getx_signed_32) (const void *);
  void           (*bfd_h_putx32) (bfd_vma, void *);
  bfd_vma        (*bfd_h_getx16) (const void *);
  bfd_signed_vma (*bfd_h_getx_signed_16) (const void *);
  void           (*bfd_h_putx16) (bfd_vma, void *);

  /* Format dependent routines: these are vectors of entry points
     within the target vector structure, one for each format to check.  */

  /* Check the format of a file being read.  Return a bfd_target * or zero.  */
  const struct bfd_target *
              (*_bfd_check_format[bfd_type_end]) (bfd *);

  /* Set the format of a file being written.  */
  bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *);

  /* Write cached information into a file being written, at bfd_close.  */
  bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *);

  /* Generic entry points.  */
#define BFD_JUMP_TABLE_GENERIC(NAME) \
  NAME##_close_and_cleanup, \
  NAME##_bfd_free_cached_info, \
  NAME##_new_section_hook, \
  NAME##_get_section_contents, \
  NAME##_get_section_contents_in_window

  /* Called when the BFD is being closed to do any necessary cleanup.  */
  bfd_boolean (*_close_and_cleanup) (bfd *);
  /* Ask the BFD to free all cached information.  */
  bfd_boolean (*_bfd_free_cached_info) (bfd *);
  /* Called when a new section is created.  */
  bfd_boolean (*_new_section_hook) (bfd *, sec_ptr);
  /* Read the contents of a section.  */
  bfd_boolean (*_bfd_get_section_contents) (bfd *, sec_ptr, void *, file_ptr,
                                            bfd_size_type);
  bfd_boolean (*_bfd_get_section_contents_in_window) (bfd *, sec_ptr,
                                                      bfd_window *, file_ptr,
                                                      bfd_size_type);

  /* Entry points to copy private data.  */
#define BFD_JUMP_TABLE_COPY(NAME) \
  NAME##_bfd_copy_private_bfd_data, \
  NAME##_bfd_merge_private_bfd_data, \
  _bfd_generic_init_private_section_data, \
  NAME##_bfd_copy_private_section_data, \
  NAME##_bfd_copy_private_symbol_data, \
  NAME##_bfd_copy_private_header_data, \
  NAME##_bfd_set_private_flags, \
  NAME##_bfd_print_private_bfd_data

  /* Called to copy BFD general private data from one object file
     to another.  */
  bfd_boolean (*_bfd_copy_private_bfd_data) (bfd *, bfd *);
  /* Called to merge BFD general private data from one object file
     to a common output file when linking.  */
  bfd_boolean (*_bfd_merge_private_bfd_data) (bfd *, struct bfd_link_info *);
  /* Called to initialize BFD private section data from one object file
     to another.  */
#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \
       BFD_SEND (obfd, _bfd_init_private_section_data, \
                 (ibfd, isec, obfd, osec, link_info))
  bfd_boolean (*_bfd_init_private_section_data) (bfd *, sec_ptr, bfd *,
                                                 sec_ptr,
                                                 struct bfd_link_info *);
  /* Called to copy BFD private section data from one object file
     to another.  */
  bfd_boolean (*_bfd_copy_private_section_data) (bfd *, sec_ptr, bfd *,
                                                 sec_ptr);
  /* Called to copy BFD private symbol data from one symbol
     to another.  */
  bfd_boolean (*_bfd_copy_private_symbol_data) (bfd *, asymbol *, bfd *,
                                                asymbol *);
  /* Called to copy BFD private header data from one object file
     to another.  */
  bfd_boolean (*_bfd_copy_private_header_data) (bfd *, bfd *);
  /* Called to set private backend flags.  */
  bfd_boolean (*_bfd_set_private_flags) (bfd *, flagword);

  /* Called to print private BFD data.  */
  bfd_boolean (*_bfd_print_private_bfd_data) (bfd *, void *);

  /* Core file entry points.  */
#define BFD_JUMP_TABLE_CORE(NAME) \
  NAME##_core_file_failing_command, \
  NAME##_core_file_failing_signal, \
  NAME##_core_file_matches_executable_p, \
  NAME##_core_file_pid

  char *      (*_core_file_failing_command) (bfd *);
  int         (*_core_file_failing_signal) (bfd *);
  bfd_boolean (*_core_file_matches_executable_p) (bfd *, bfd *);
  int         (*_core_file_pid) (bfd *);

  /* Archive entry points.  */
#define BFD_JUMP_TABLE_ARCHIVE(NAME) \
  NAME##_slurp_armap, \
  NAME##_slurp_extended_name_table, \
  NAME##_construct_extended_name_table, \
  NAME##_truncate_arname, \
  NAME##_write_armap, \
  NAME##_read_ar_hdr, \
  NAME##_write_ar_hdr, \
  NAME##_openr_next_archived_file, \
  NAME##_get_elt_at_index, \
  NAME##_generic_stat_arch_elt, \
  NAME##_update_armap_timestamp

  bfd_boolean (*_bfd_slurp_armap) (bfd *);
  bfd_boolean (*_bfd_slurp_extended_name_table) (bfd *);
  bfd_boolean (*_bfd_construct_extended_name_table) (bfd *, char **,
                                                     bfd_size_type *,
                                                     const char **);
  void        (*_bfd_truncate_arname) (bfd *, const char *, char *);
  bfd_boolean (*write_armap) (bfd *, unsigned int, struct orl *,
                              unsigned int, int);
  void *      (*_bfd_read_ar_hdr_fn) (bfd *);
  bfd_boolean (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
  bfd *       (*openr_next_archived_file) (bfd *, bfd *);
#define bfd_get_elt_at_index(b,i) \
       BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
  bfd *       (*_bfd_get_elt_at_index) (bfd *, symindex);
  int         (*_bfd_stat_arch_elt) (bfd *, struct stat *);
  bfd_boolean (*_bfd_update_armap_timestamp) (bfd *);

  /* Entry points used for symbols.  */
#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
  NAME##_get_symtab_upper_bound, \
  NAME##_canonicalize_symtab, \
  NAME##_make_empty_symbol, \
  NAME##_print_symbol, \
  NAME##_get_symbol_info, \
  NAME##_get_symbol_version_string, \
  NAME##_bfd_is_local_label_name, \
  NAME##_bfd_is_target_special_symbol, \
  NAME##_get_lineno, \
  NAME##_find_nearest_line, \
  NAME##_find_line, \
  NAME##_find_inliner_info, \
  NAME##_bfd_make_debug_symbol, \
  NAME##_read_minisymbols, \
  NAME##_minisymbol_to_symbol

  long        (*_bfd_get_symtab_upper_bound) (bfd *);
  long        (*_bfd_canonicalize_symtab) (bfd *, struct bfd_symbol **);
  struct bfd_symbol *
              (*_bfd_make_empty_symbol) (bfd *);
  void        (*_bfd_print_symbol) (bfd *, void *, struct bfd_symbol *,
                                    bfd_print_symbol_type);
#define bfd_print_symbol(b,p,s,e) \
       BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
  void        (*_bfd_get_symbol_info) (bfd *, struct bfd_symbol *,
                                       symbol_info *);
#define bfd_get_symbol_info(b,p,e) \
       BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
  const char *(*_bfd_get_symbol_version_string) (bfd *, struct bfd_symbol *,
                                                 bfd_boolean *);
#define bfd_get_symbol_version_string(b,s,h) \
       BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,h))
  bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
  bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
  alent *     (*_get_lineno) (bfd *, struct bfd_symbol *);
  bfd_boolean (*_bfd_find_nearest_line) (bfd *, struct bfd_symbol **,
                                         struct bfd_section *, bfd_vma,
                                         const char **, const char **,
                                         unsigned int *, unsigned int *);
  bfd_boolean (*_bfd_find_line) (bfd *, struct bfd_symbol **,
                                 struct bfd_symbol *, const char **,
                                 unsigned int *);
  bfd_boolean (*_bfd_find_inliner_info)
    (bfd *, const char **, const char **, unsigned int *);
 /* Back-door to allow format-aware applications to create debug symbols
    while using BFD for everything else.  Currently used by the assembler
    when creating COFF files.  */
  asymbol *   (*_bfd_make_debug_symbol) (bfd *, void *, unsigned long size);
#define bfd_read_minisymbols(b, d, m, s) \
       BFD_SEND (b, _read_minisymbols, (b, d, m, s))
  long        (*_read_minisymbols) (bfd *, bfd_boolean, void **,
                                    unsigned int *);
#define bfd_minisymbol_to_symbol(b, d, m, f) \
       BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
  asymbol *   (*_minisymbol_to_symbol) (bfd *, bfd_boolean, const void *,
                                        asymbol *);

  /* Routines for relocs.  */
#define BFD_JUMP_TABLE_RELOCS(NAME) \
  NAME##_get_reloc_upper_bound, \
  NAME##_canonicalize_reloc, \
  NAME##_set_reloc, \
  NAME##_bfd_reloc_type_lookup, \
  NAME##_bfd_reloc_name_lookup

  long        (*_get_reloc_upper_bound) (bfd *, sec_ptr);
  long        (*_bfd_canonicalize_reloc) (bfd *, sec_ptr, arelent **,
                                          struct bfd_symbol **);
  void        (*_bfd_set_reloc) (bfd *, sec_ptr, arelent **, unsigned int);
  /* See documentation on reloc types.  */
  reloc_howto_type *
              (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
  reloc_howto_type *
              (*reloc_name_lookup) (bfd *, const char *);

  /* Routines used when writing an object file.  */
#define BFD_JUMP_TABLE_WRITE(NAME) \
  NAME##_set_arch_mach, \
  NAME##_set_section_contents

  bfd_boolean (*_bfd_set_arch_mach) (bfd *, enum bfd_architecture,
                                     unsigned long);
  bfd_boolean (*_bfd_set_section_contents) (bfd *, sec_ptr, const void *,
                                            file_ptr, bfd_size_type);

  /* Routines used by the linker.  */
#define BFD_JUMP_TABLE_LINK(NAME) \
  NAME##_sizeof_headers, \
  NAME##_bfd_get_relocated_section_contents, \
  NAME##_bfd_relax_section, \
  NAME##_bfd_link_hash_table_create, \
  NAME##_bfd_link_add_symbols, \
  NAME##_bfd_link_just_syms, \
  NAME##_bfd_copy_link_hash_symbol_type, \
  NAME##_bfd_final_link, \
  NAME##_bfd_link_split_section, \
  NAME##_bfd_link_check_relocs, \
  NAME##_bfd_gc_sections, \
  NAME##_bfd_lookup_section_flags, \
  NAME##_bfd_merge_sections, \
  NAME##_bfd_is_group_section, \
  NAME##_bfd_discard_group, \
  NAME##_section_already_linked, \
  NAME##_bfd_define_common_symbol, \
  NAME##_bfd_link_hide_symbol, \
  NAME##_bfd_define_start_stop

  int         (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
  bfd_byte *  (*_bfd_get_relocated_section_contents) (bfd *,
                                                      struct bfd_link_info *,
                                                      struct bfd_link_order *,
                                                      bfd_byte *, bfd_boolean,
                                                      struct bfd_symbol **);

  bfd_boolean (*_bfd_relax_section) (bfd *, struct bfd_section *,
                                     struct bfd_link_info *, bfd_boolean *);

  /* Create a hash table for the linker.  Different backends store
     different information in this table.  */
  struct bfd_link_hash_table *
              (*_bfd_link_hash_table_create) (bfd *);

  /* Add symbols from this object file into the hash table.  */
  bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);

  /* Indicate that we are only retrieving symbol values from this section.  */
  void        (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);

  /* Copy the symbol type and other attributes for a linker script
     assignment of one symbol to another.  */
#define bfd_copy_link_hash_symbol_type(b, t, f) \
       BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
  void        (*_bfd_copy_link_hash_symbol_type) (bfd *,
                                                  struct bfd_link_hash_entry *,
                                                  struct bfd_link_hash_entry *);

  /* Do a link based on the link_order structures attached to each
     section of the BFD.  */
  bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *);

  /* Should this section be split up into smaller pieces during linking.  */
  bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *);

  /* Check the relocations in the bfd for validity.  */
  bfd_boolean (* _bfd_link_check_relocs)(bfd *, struct bfd_link_info *);

  /* Remove sections that are not referenced from the output.  */
  bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);

  /* Sets the bitmask of allowed and disallowed section flags.  */
  bfd_boolean (*_bfd_lookup_section_flags) (struct bfd_link_info *,
                                            struct flag_info *, asection *);

  /* Attempt to merge SEC_MERGE sections.  */
  bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);

  /* Is this section a member of a group?  */
  bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *);

  /* Discard members of a group.  */
  bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *);

  /* Check if SEC has been already linked during a reloceatable or
     final link.  */
  bfd_boolean (*_section_already_linked) (bfd *, asection *,
                                          struct bfd_link_info *);

  /* Define a common symbol.  */
  bfd_boolean (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
                                            struct bfd_link_hash_entry *);

  /* Hide a symbol.  */
  void (*_bfd_link_hide_symbol) (bfd *, struct bfd_link_info *,
                                 struct bfd_link_hash_entry *);

  /* Define a __start, __stop, .startof. or .sizeof. symbol.  */
  struct bfd_link_hash_entry *
              (*_bfd_define_start_stop) (struct bfd_link_info *, const char *,
                                         asection *);

  /* Routines to handle dynamic symbols and relocs.  */
#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
  NAME##_get_dynamic_symtab_upper_bound, \
  NAME##_canonicalize_dynamic_symtab, \
  NAME##_get_synthetic_symtab, \
  NAME##_get_dynamic_reloc_upper_bound, \
  NAME##_canonicalize_dynamic_reloc

  /* Get the amount of memory required to hold the dynamic symbols.  */
  long        (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
  /* Read in the dynamic symbols.  */
  long        (*_bfd_canonicalize_dynamic_symtab) (bfd *, struct bfd_symbol **);
  /* Create synthetized symbols.  */
  long        (*_bfd_get_synthetic_symtab) (bfd *, long, struct bfd_symbol **,
                                            long, struct bfd_symbol **,
                                            struct bfd_symbol **);
  /* Get the amount of memory required to hold the dynamic relocs.  */
  long        (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
  /* Read in the dynamic relocs.  */
  long        (*_bfd_canonicalize_dynamic_reloc) (bfd *, arelent **,
                                                  struct bfd_symbol **);

  /* Opposite endian version of this target.  */
  const struct bfd_target *alternative_target;

  /* Data for use by back-end routines, which isn't
     generic enough to belong in this structure.  */
  const void *backend_data;

} bfd_target;

bfd_boolean bfd_set_default_target (const char *name);

const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);

const bfd_target *bfd_get_target_info (const char *target_name,
    bfd *abfd,
    bfd_boolean *is_bigendian,
    int *underscoring,
    const char **def_target_arch);

const char ** bfd_target_list (void);

const bfd_target *bfd_iterate_over_targets
   (int (*func) (const bfd_target *, void *),
    void *data);

const char *bfd_flavour_name (enum bfd_flavour flavour);