xcoff64 bfd-libxcoff.h.patch

["Tom Rix" <trix at redhat dot com>]

libxcoff.h : new file

----------------------------------------------------------------------------


/* This is the backend information kept for XCOFF files.  This
   structure is constant for a particular backend.  The first element
   is the COFF backend data structure, so that XCOFF targets can use
   the generic COFF code.  */

struct xcoff_backend_data_rec
{
	/*
	 * COFF backend information.  Must be the first field.
	 * This is where the std coff swap table goes
	 */
	bfd_coff_backend_data coff;

	/* Magic number */
	unsigned short _xcoff_magic_number;
	unsigned short _reserved_1;

	/* Architecture and machine for coff_set_arch_mach_hook */
	enum bfd_architecture _xcoff_architecture;
	long _xcoff_machine;

  /* function pointers to xcoff specific swap routines */
  void (* _xcoff_swap_ldhdr_in)(bfd *, PTR, struct internal_ldhdr *);
  void (* _xcoff_swap_ldhdr_out)(bfd *, struct internal_ldhdr *, PTR);
  void (* _xcoff_swap_ldsym_in)(bfd *, PTR, struct internal_ldsym *);
  void (* _xcoff_swap_ldsym_out)(bfd *, struct internal_ldsym *, PTR);
  void (* _xcoff_swap_ldrel_in)(bfd *, PTR, struct internal_ldrel *);
  void (* _xcoff_swap_ldrel_out)(bfd *, struct internal_ldrel *, PTR);

  /* size of the the external struct */
  unsigned int _xcoff_ldhdrsz;
  unsigned int _xcoff_ldsymsz;
  unsigned int _xcoff_ldrelsz;

  /* size an entry in a descriptor section */
  unsigned int _xcoff_function_descriptor_size;

  /* size of the small aout file header */
  unsigned int _xcoff_small_aout_header_size;

  /*
   * version
   * loader version
   * 1 : xcoff32
   * 2 : xcoff64
   */
  unsigned long _xcoff_ldhdr_version;

  boolean (* _xcoff_put_symbol_name)(bfd *, struct bfd_strtab_hash *,
								  struct internal_syment *,
								  const char *);

  boolean (* _xcoff_put_ldsymbol_name)(bfd *, struct xcoff_loader_info *,
									struct internal_ldsym *,
									const char *);

  reloc_howto_type *_xcoff_dynamic_reloc;
  reloc_howto_type * (* _xcoff_rtype_to_canonical_reloc)
       (bfd *, struct internal_reloc *);

  asection * (* _xcoff_create_csect_from_smclas) (bfd *, union
internal_auxent *, const char *);

  /*
   * line_no and reloc overflow
   * 32 overflows to another section when the line_no or reloc count go
   * over 0xffff.  64 does not overflow.
   */
  boolean (*_xcoff_is_lineno_count_overflow)(bfd *, bfd_vma);
  boolean (*_xcoff_is_reloc_count_overflow)(bfd *, bfd_vma);

  /*
   * .loader symbol table offset
   * 32 is after the .loader header
   * 64 is offset in .loader header
   *
   * Similar for the reloc table
   */
  bfd_vma (*_xcoff_loader_symbol_offset)(bfd *, struct internal_ldhdr *);
  bfd_vma (*_xcoff_loader_reloc_offset)(bfd *, struct internal_ldhdr *);

  /*
   * Global linkage
   *
   * The first word of global linkage code must be be modified by
   * filling in the correct TOC offset.
   */
  unsigned long *_xcoff_glink_code;

  /*
   * Size of the global link code in bytes of the xcoff_glink_code table
   */
  unsigned long _xcoff_glink_size;

};

/* Look up an entry in an XCOFF link hash table.  */

#define xcoff_link_hash_lookup(table, string, create, copy, follow) \
  ((struct xcoff_link_hash_entry *) \
   bfd_link_hash_lookup (&(table)->root, (string), (create), (copy),\
			 (follow)))

/* Traverse an XCOFF link hash table.  */

#define xcoff_link_hash_traverse(table, func, info)			\
  (bfd_link_hash_traverse						\
   (&(table)->root,							\
    (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func),	\
    (info)))

/* Get the XCOFF link hash table from the info structure.  This is
   just a cast.  */

#define xcoff_hash_table(p) ((struct xcoff_link_hash_table *) ((p)->hash))


#define xcoff_backend(abfd) \
  ((struct xcoff_backend_data_rec *) (abfd)->xvec->backend_data)

#define bfd_xcoff_magic_number(a) ((xcoff_backend(a)->_xcoff_magic_number))
#define bfd_xcoff_architecture(a) ((xcoff_backend(a)->_xcoff_architecture))
#define bfd_xcoff_machine(a) ((xcoff_backend(a)->_xcoff_machine))

#define bfd_xcoff_swap_ldhdr_in(a, b, c) \
  ((xcoff_backend(a)->_xcoff_swap_ldhdr_in) ((a), (b), (c)))

#define bfd_xcoff_swap_ldhdr_out(a, b, c) \
  ((xcoff_backend(a)->_xcoff_swap_ldhdr_out) ((a), (b), (c)))

#define bfd_xcoff_swap_ldsym_in(a, b, c) \
  ((xcoff_backend(a)->_xcoff_swap_ldsym_in) ((a), (b), (c)))

#define bfd_xcoff_swap_ldsym_out(a, b, c) \
  ((xcoff_backend(a)->_xcoff_swap_ldsym_out) ((a), (b), (c)))

#define bfd_xcoff_swap_ldrel_in(a, b, c) \
  ((xcoff_backend(a)->_xcoff_swap_ldrel_in) ((a), (b), (c)))

#define bfd_xcoff_swap_ldrel_out(a, b, c) \
  ((xcoff_backend(a)->_xcoff_swap_ldrel_out) ((a), (b), (c)))

#define bfd_xcoff_ldhdrsz(a) ((xcoff_backend(a)->_xcoff_ldhdrsz))
#define bfd_xcoff_ldsymsz(a) ((xcoff_backend(a)->_xcoff_ldsymsz))
#define bfd_xcoff_ldrelsz(a) ((xcoff_backend(a)->_xcoff_ldrelsz))
#define bfd_xcoff_function_descriptor_size(a) \
  ((xcoff_backend(a)->_xcoff_function_descriptor_size))
#define bfd_xcoff_small_aout_header_size(a) \
  ((xcoff_backend(a)->_xcoff_small_aout_header_size))

#define bfd_xcoff_ldhdr_version(a)
((xcoff_backend(a)->_xcoff_ldhdr_version))

#define bfd_xcoff_put_symbol_name(a, b, c, d) \
  ((xcoff_backend(a)->_xcoff_put_symbol_name) ((a), (b), (c), (d)))

#define bfd_xcoff_put_ldsymbol_name(a, b, c, d) \
  ((xcoff_backend(a)->_xcoff_put_ldsymbol_name) ((a), (b), (c), (d)))

/* Get the XCOFF hash table entries for a BFD.  */
#define obj_xcoff_sym_hashes(bfd) \
  ((struct xcoff_link_hash_entry **) obj_coff_sym_hashes (bfd))

#define bfd_xcoff_dynamic_reloc_howto(a) \
   ((xcoff_backend(a)->_xcoff_dynamic_reloc))
#define bfd_xcoff_rtype_to_canonical_reloc_howto(a, b) \
   ((xcoff_backend(a)->_xcoff_rtype_to_canonical_reloc((a), (b))))

#define bfd_xcoff_create_csect_from_smclas(a, b, c) \
   ((xcoff_backend(a)->_xcoff_create_csect_from_smclas((a), (b), (c))))

#define bfd_xcoff_is_lineno_count_overflow(a, b) \
   ((xcoff_backend(a)->_xcoff_is_lineno_count_overflow((a), (b))))

#define bfd_xcoff_is_reloc_count_overflow(a, b) \
   ((xcoff_backend(a)->_xcoff_is_reloc_count_overflow((a), (b))))

#define bfd_xcoff_loader_symbol_offset(a, b) \
 ((xcoff_backend(a)->_xcoff_loader_symbol_offset((a), (b))))

#define bfd_xcoff_loader_reloc_offset(a, b) \
 ((xcoff_backend(a)->_xcoff_loader_reloc_offset((a), (b))))

#define bfd_xcoff_glink_code(a, b)
((xcoff_backend(a)->_xcoff_glink_code[(b)]))
#define bfd_xcoff_glink_code_size(a) ((xcoff_backend(a)->_xcoff_glink_size))

#define bfd_xcoff_is_xcoff64(a) (0x01EF == (bfd_xcoff_magic_number(a)))
#define bfd_xcoff_is_xcoff32(a) (0x01DF == (bfd_xcoff_magic_number(a)))

/* Functions in xcofflink.c.  */

extern long _bfd_xcoff_get_dynamic_symtab_upper_bound PARAMS ((bfd *));
extern long _bfd_xcoff_canonicalize_dynamic_symtab
  PARAMS ((bfd *, asymbol **));
extern long _bfd_xcoff_get_dynamic_reloc_upper_bound PARAMS ((bfd *));
extern long _bfd_xcoff_canonicalize_dynamic_reloc
  PARAMS ((bfd *, arelent **, asymbol **));
extern struct bfd_link_hash_table *_bfd_xcoff_bfd_link_hash_table_create
  PARAMS ((bfd *));
extern boolean _bfd_xcoff_bfd_link_add_symbols
  PARAMS ((bfd *, struct bfd_link_info *));
extern boolean _bfd_xcoff_bfd_final_link
  PARAMS ((bfd *, struct bfd_link_info *));
extern boolean _bfd_xcoff_slurp_symbol_table
  PARAMS ((bfd *));
extern long _bfd_xcoff_get_symbol_table
  PARAMS ((bfd *, asymbol **));
extern asymbol *_bfd_xcoff_make_empty_symbol
  PARAMS ((bfd *));
extern long _bfd_xcoff_get_symbol_table_upper_bound
  PARAMS ((bfd *));
extern void _bfd_xcoff_print_symbol
  PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type));
extern void _bfd_xcoff_get_symbol_info
  PARAMS ((bfd *, asymbol *, symbol_info *));
extern long _bfd_xcoff_canonicalize_reloc
  PARAMS((bfd *, sec_ptr, arelent **, asymbol **));
extern reloc_howto_type *_bfd_xcoff_rtype_to_howto
  PARAMS ((bfd *, asection *, struct internal_reloc *,
	   struct coff_link_hash_entry *, struct internal_syment *,
	   bfd_vma *));
extern boolean _bfd_xcoff_set_section_contents
  PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
boolean _bfd_xcoff_write_object_contents PARAMS ((bfd *));


/* XCOFF support routines for the linker.  */

extern boolean bfd_xcoff_link_record_set
  PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
	   bfd_size_type));
extern boolean bfd_xcoff_import_symbol
  PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
	   bfd_vma, const char *, const char *, const char *));
extern boolean bfd_xcoff_export_symbol
  PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
	   boolean));
extern boolean bfd_xcoff_link_count_reloc
  PARAMS ((bfd *, struct bfd_link_info *, const char *));
extern boolean bfd_xcoff_record_link_assignment
  PARAMS ((bfd *, struct bfd_link_info *, const char *));
extern boolean bfd_xcoff_size_dynamic_sections
  PARAMS ((bfd *, struct bfd_link_info *, const char *, const char *,
	   unsigned long, unsigned long, unsigned long, boolean,
	   int, boolean, boolean, struct sec **));
extern boolean xcoff_slurp_reloc_table
  PARAMS ((bfd *, asection *, asymbol **));