libieee.h

早期freebsd实现

/* IEEE-695 object file formats:  definitions internal to BFD.
   Copyright (C) 1990-1991 Free Software Foundation, Inc.
   Written by Cygnus Support.  Mostly Steve Chamberlain's fault.

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., 675 Mass Ave, Cambridge, MA 02139, USA.  */

typedef struct {
  unsigned int index:24;
  char letter;
} ieee_symbol_index_type;

typedef struct ct {
  bfd *this;
  struct ct *next;
} bfd_chain_type;

typedef struct ieee_symbol 
{
  asymbol symbol;
  struct ieee_symbol *next;

  unsigned int index;
} ieee_symbol_type;


typedef struct ieee_reloc {
  arelent relent;
  struct ieee_reloc *next;
  ieee_symbol_index_type symbol;

} ieee_reloc_type;

#define ieee_symbol(x) ((ieee_symbol_type *)(x))

typedef struct ieee_per_section
{
  asection *section;
  bfd_byte *data;
  bfd_vma offset;
  bfd_vma pc;
  /* For output */
  file_ptr current_pos;
  unsigned int current_byte;
  boolean initialized;
  ieee_reloc_type **reloc_tail_ptr;
} ieee_per_section_type;

#define ieee_per_section(x) ((ieee_per_section_type *)((x)->used_by_bfd))
#define NSECTIONS 20

  
typedef struct {
  unsigned  char *input_p;
  unsigned char *first_byte;
  bfd *abfd;
} common_header_type ;

typedef struct ieee_data_struct
{
  common_header_type h;
  boolean read_symbols;
  boolean read_data;	
  file_ptr output_cursor;
  /* Map of section indexes to section ptrs */
  asection * section_table[NSECTIONS];
  ieee_address_descriptor_type ad;
  ieee_module_begin_type mb;
  ieee_w_variable_type w;
  
  unsigned int section_count;
  
  unsigned int map_idx;
  /* List of GLOBAL EXPORT symbols */
  ieee_symbol_type *external_symbols;
  /* List of UNDEFINED symbols */
  ieee_symbol_type *external_reference;
  
  /* When the symbols have been canonicalized, they are in a
    * special order, we remember various bases here.. */
  unsigned int external_symbol_max_index;
  unsigned int external_symbol_min_index;
  unsigned int external_symbol_count;
  int external_symbol_base_offset;
  
  unsigned int external_reference_max_index;
  unsigned int external_reference_min_index;
  unsigned int external_reference_count;
  int external_reference_base_offset;
  

  boolean symbol_table_full;

  
boolean done_debug;


bfd_chain_type *chain_head;
bfd_chain_type *chain_root;

} ieee_data_type;

typedef struct {
  file_ptr file_offset;
  bfd *abfd;
} ieee_ar_obstack_type;

typedef struct ieee_ar_data_struct 
{
  common_header_type h;
  ieee_ar_obstack_type *elements;
  
  unsigned  int element_index ;
  unsigned int element_count;

} ieee_ar_data_type;

#define IEEE_DATA(abfd) ((abfd)->tdata.ieee_data)
#define IEEE_AR_DATA(abfd) ((abfd)->tdata.ieee_ar_data)

#define ptr(abfd) (ieee_data(abfd)->input_p)