Support for xcoff64

1 files changed, 266 insertions, 0 deletions

diff --git a/bfd/libxcoff.h b/bfd/libxcoff.h
new file mode 100644
index 0000000000..a755665f04
--- /dev/null
+++ b/bfd/libxcoff.h
@@ -0,0 +1,266 @@
+/* BFD XCOFF object file private structure.
+   Copyright (C) 2001 Free Software Foundation, Inc.
+   Written by Tom Rix, Redhat.
+
+This file is part of BFD, the Binary File Descriptor library.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef LIBXCOFF_H
+#define LIBXCOFF_H
+
+/* 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;              
+
+  /* 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;
+
+  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_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 **));
+
+#endif /* LIBXCOFF_H */