binutils-gdb/bfd/ieee.c

/*
   
 bfd backend for ieee objects.



 IEEE 695 format is a stream of records, which we parse using a simple one
 token (which is one byte in this lexicon) lookahead recursive decent
 parser.


 */


#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "obstack.h"
#include "ieee.h"
#include "libieee.h"


#define obstack_chunk_alloc malloc
#define obstack_chunk_free  free
#define ieee_malloc(abfd,size) \
  obstack_alloc(&( ieee_data(abfd)->ieee_obstack), (size))

typedef void generic_symbol_type;


/***************************************************************************
   Functions for writing to ieee files in the strange way that the
   standard requires:
*/


static void
DEFUN(ieee_write_byte,(abfd, byte),
      bfd *abfd AND
      bfd_byte byte)
{
  bfd_write(&byte, 1, 1, abfd);
}


static void
DEFUN(ieee_write_2bytes,(abfd, bytes),
      bfd *abfd AND
      int bytes)
{
  bfd_byte buffer[2];
  buffer[0] = bytes >> 8;
  buffer[1] = bytes & 0xff;

  bfd_write(buffer, 1, 2, abfd);
}

static void
DEFUN(ieee_write_int,(abfd, value),
      bfd *abfd AND
      bfd_vma value)
{
  if (value >= 0 && value <= 127) {
    ieee_write_byte(abfd, value);
  }
  else {
    unsigned int length;
    /* How many significant bytes ? */
    /* FIXME FOR LONGER INTS */
    if (value & 0xff000000) {
      length = 4;
    }
    else if (value & 0x00ff0000) {
      length  = 3;
    }
    else if (value & 0x0000ff00) {
      length = 2;
    }
    else length = 1;

    ieee_write_byte(abfd, ieee_number_repeat_start_enum + length);
    switch (length) {
    case 4:
      ieee_write_byte(abfd, value >> 24);
    case 3:
      ieee_write_byte(abfd, value >> 16);
    case 2:
      ieee_write_byte(abfd, value >> 8);
    case 1:
      ieee_write_byte(abfd, value);
    }
  }
}

static void
DEFUN(ieee_write_id,(abfd, id),
      bfd *abfd AND
      CONST char *id)
{
  size_t length = strlen(id);
  if (length >= 0 && length <= 127) {
    ieee_write_byte(abfd, length);
  }
  else if (length < 255) {
    ieee_write_byte(abfd, ieee_extension_length_1_enum);
    ieee_write_byte(abfd, length);
  }
  else if (length < 65535) {
    ieee_write_byte(abfd, ieee_extension_length_2_enum);
    ieee_write_byte(abfd, length >> 8);
    ieee_write_byte(abfd, length & 0xff);  
  }
  else {
    BFD_FAIL();
  }
  bfd_write((bfd_byte *)id, 1, length, abfd);
}
/***************************************************************************
Functions for reading from ieee files in the strange way that the
standard requires:
*/

#define this_byte(abfd) *(ptr(abfd))
#define next_byte(abfd) (ptr(abfd)++)
#define this_byte_and_next(abfd) *(ptr(abfd)++)


static unsigned short 
DEFUN(read_2bytes,(abfd),
      bfd *abfd)
{
  unsigned  char c1 = this_byte_and_next(abfd);
  unsigned  char c2 = this_byte_and_next(abfd);
  return (c1<<8 ) | c2;

}

static void
DEFUN(bfd_get_string,(abfd, string, length),
      bfd *abfd AND
      char *string AND
      size_t length)
{
  size_t i;
  for (i= 0; i < length; i++) {
    string[i] = this_byte_and_next(abfd);
  }
}

static char *
DEFUN(read_id,(abfd),
      bfd *abfd)
{
  size_t length;
  char *string;
  length = this_byte_and_next(abfd);
  if (length >= 0x00 && length <= 0x7f) {
    /* Simple string of length 0 to 127 */
  }
  else if (length == 0xde) {
    /* Length is next byte, allowing 0..255 */
    length = this_byte_and_next(abfd);
  }
  else if (length == 0xdf) {
    /* Length is next two bytes, allowing 0..65535 */
    length = this_byte_and_next(abfd) ;
    length = (length * 256) + this_byte_and_next(abfd);
  }
  /* Buy memory and read string */
  string = ieee_malloc(abfd, length+1);
  bfd_get_string(abfd, string, length);
  string[length] = 0;
  return string;
}

static void
DEFUN(ieee_write_expression,(abfd, value, section, symbol),
      bfd*abfd AND
      bfd_vma value AND
      asection *section AND
      asymbol *symbol)
{
  unsigned int plus_count = 0;
  ieee_write_int(abfd, value);
  if (section != (asection *)NULL) {
    plus_count++;
    ieee_write_byte(abfd, ieee_variable_L_enum);
    ieee_write_byte(abfd, section->index  +IEEE_SECTION_NUMBER_BASE);
  }

  if (symbol != (asymbol *)NULL) {
    plus_count++;
    if ((symbol->flags & BSF_UNDEFINED ) ||
	(symbol->flags & BSF_FORT_COMM)) {
      ieee_write_byte(abfd, ieee_variable_X_enum);
      ieee_write_int(abfd, symbol->value);
    }
    else if (symbol->flags & BSF_GLOBAL) {
      ieee_write_byte(abfd, ieee_variable_I_enum);
      ieee_write_int(abfd, symbol->value);
    }
    else if (symbol->flags & BSF_LOCAL) {
      /* This is a reference to a defined local symbol, 
	 We can easily do a local as a section+offset */
      if (symbol->section != (asection *)NULL) {
	/* If this symbol is not absolute, add the base of it */
	ieee_write_byte(abfd, ieee_variable_L_enum);
	ieee_write_byte(abfd, symbol->section->index +
			IEEE_SECTION_NUMBER_BASE);
	plus_count++;
      }
      
      ieee_write_int(abfd, symbol->value);
    }
    else {

      BFD_FAIL();
    }
  }

  while (plus_count != 0) {
    ieee_write_byte(abfd, ieee_function_plus_enum);
    plus_count--;
  }

}









/*****************************************************************************/

/*
writes any integer into the buffer supplied and always takes 5 bytes
*/
static void
DEFUN(ieee_write_int5,(buffer, value),
      bfd_byte*buffer AND
      bfd_vma value )
{
  buffer[0] = ieee_number_repeat_4_enum;
  buffer[1] = (value >> 24 ) & 0xff;
  buffer[2] = (value >> 16 ) & 0xff;
  buffer[3] = (value >> 8 ) & 0xff;
  buffer[4] = (value >> 0 ) & 0xff;
}
static void
DEFUN(ieee_write_int5_out, (abfd, value),
      bfd *abfd AND
      bfd_vma value)
{
  char b[5];
  ieee_write_int5(b, value);
  bfd_write(b,1,5,abfd);
}


static boolean 
DEFUN(parse_int,(abfd, value_ptr),
      bfd *abfd AND
      bfd_vma *value_ptr)
{
  int value = this_byte(abfd);
  int result;
  if (value >= 0 && value <= 127) {
    *value_ptr = value;
    next_byte(abfd);
    return true;
  } 
  else if (value >= 0x80 && value <= 0x88) {
    unsigned int count = value & 0xf;
    result = 0;
    next_byte(abfd);
    while (count) {
      result =(result << 8) | this_byte_and_next(abfd);
      count--;
    }
    *value_ptr = result;
    return true;
  } 
  return false;
}
static int
DEFUN(parse_i,(abfd, ok),
      bfd *abfd AND
      boolean *ok)
{
  bfd_vma x;
  *ok = parse_int(abfd, &x);
  return x;
}

static bfd_vma 
DEFUN(must_parse_int,(abfd),
      bfd *abfd)
{
  bfd_vma result;
  BFD_ASSERT(parse_int(abfd, &result) == true);
  return result;
}

typedef struct 
{
  bfd_vma value;
  asection *section;
  ieee_symbol_index_type symbol;
} ieee_value_type;


static 
reloc_howto_type abs32_howto 
 = {1,0,2,32,0,0,0,true,0,"abs32",false,0xffffffff, 0xffffffff};
static
reloc_howto_type abs16_howto 
 = {1,0,1,16,0,0,0,true,0,"abs16",false,0x0000ffff, 0x0000ffff};

static ieee_symbol_index_type NOSYMBOL = {  0, 0};


static void
DEFUN(parse_expression,(abfd, value, section, symbol, pcrel, extra),
      bfd *abfd AND
      bfd_vma *value AND
      asection **section AND
      ieee_symbol_index_type *symbol AND
      boolean *pcrel AND
      unsigned int *extra)
{
#define POS sp[1]
#define TOS sp[0]
#define NOS sp[-1]
#define INC sp++;
#define DEC sp--;

  boolean loop = true;
  ieee_value_type stack[10];

  /* The stack pointer always points to the next unused location */
#define PUSH(x,y,z) TOS.symbol=x;TOS.section=y;TOS.value=z;INC;
#define POP(x,y,z) DEC;x=TOS.symbol;y=TOS.section;z=TOS.value;
  ieee_value_type *sp = stack;

  while (loop) {
    switch (this_byte(abfd)) 
      {
      case ieee_variable_P_enum:
	/* P variable, current program counter for section n */
	{
	  int section_n ;
	  next_byte(abfd);
	  section_n  = must_parse_int(abfd);
	  PUSH(NOSYMBOL, 0,
	       TOS.value = ieee_data(abfd)->section_table[section_n]->vma +
	       ieee_per_section(ieee_data(abfd)->section_table[section_n])->pc);
	  break;
	}
      case ieee_variable_L_enum:
	/* L variable  address of section N */
	next_byte(abfd);
	PUSH(NOSYMBOL,ieee_data(abfd)->section_table[must_parse_int(abfd)],0);
	break;
      case ieee_variable_R_enum:
	/* R variable, logical address of section module */
	/* FIXME, this should be different to L */
	next_byte(abfd);
	PUSH(NOSYMBOL,ieee_data(abfd)->section_table[must_parse_int(abfd)],0);
	break;
      case ieee_variable_S_enum:
	/* S variable, size in MAUS of section module */
	next_byte(abfd);
	PUSH(NOSYMBOL,
	     0,
	     ieee_data(abfd)->section_table[must_parse_int(abfd)]->size);
	break;

      case ieee_variable_X_enum:
	/* Push the address of external variable n */
	{
	  ieee_symbol_index_type sy;
	  next_byte(abfd);
	  sy.index  = (int)(must_parse_int(abfd)) ;
	  sy.letter = 'X';

	  PUSH(sy, 0, 0);
	}	
	break;
      case ieee_function_minus_enum:
	{
	  bfd_vma value1, value2;
	  asection *section;
	  ieee_symbol_index_type sy;
	  next_byte(abfd);

	  POP(sy, section, value1);
	  POP(sy, section, value2);
	  PUSH(NOSYMBOL, 0, value1-value2);
	}
	break;
      case ieee_function_plus_enum:
	{
	  bfd_vma value1, value2;
	  asection *section1;
	  asection *section2;
	  ieee_symbol_index_type sy1;
	  ieee_symbol_index_type sy2;
	  next_byte(abfd);

	  POP(sy1, section1, value1);
	  POP(sy2, section2, value2);
	  PUSH(sy1.letter ? sy1 : sy2, section1 ? section1: section2, value1+value2);
	}
	break;
      default: 
	{
	  bfd_vma va;
	  BFD_ASSERT(this_byte(abfd) < ieee_variable_A_enum 
		     || this_byte(abfd) > ieee_variable_Z_enum);
	  if (parse_int(abfd, &va)) 
	    {
	      PUSH(NOSYMBOL,0, va);
	    }
	  else {
	    /* 
	       Thats all that we can understand. As far as I can see
	       there is a bug in the Microtec IEEE output which I'm
	       using to scan, whereby the comma operator is ommited
	       sometimes in an expression, giving expressions with too
	       many terms. We can tell if that's the case by ensuring
	       that sp == stack here. If not, then we've pushed
	       something too far. - 
	       */

	    POP(*symbol, *section, *value);
	    if (sp != stack) {
	      BFD_ASSERT(*section == 0);
	      *extra = *value;
	      /* Get what should be returned */
	      POP(*symbol, *section, *value);
	    }
	    else {
	      *extra = 0;
	    }
	    loop = false;
	  }
	}

      }
  }
}



#define ieee_seek(abfd, offset) \
  ieee_data(abfd)->input_p = ieee_data(abfd)->first_byte + offset

static void
DEFUN(ieee_slurp_external_symbols,(abfd),
      bfd *abfd)
{
  ieee_data_type *ieee = ieee_data(abfd);
  file_ptr offset = ieee->w.r.external_part;

  ieee_symbol_type **prev_symbols_ptr = &ieee->external_symbols;
  ieee_symbol_type **prev_reference_ptr = &ieee->external_reference;
  ieee_symbol_type  *symbol;
  unsigned int symbol_count = 0;
  boolean loop = true;

  ieee->symbol_table_full = true;

  ieee_seek(abfd, offset );

  while (loop) {
    switch (this_byte(abfd)) {
    case ieee_external_symbol_enum:
      next_byte(abfd);
      symbol =  (ieee_symbol_type *)ieee_malloc(abfd, sizeof(ieee_symbol_type));

      *prev_symbols_ptr = symbol;
      prev_symbols_ptr= &symbol->next;
      symbol->index = must_parse_int(abfd);
      if (symbol->index > ieee->external_symbol_max_index) {
	ieee->external_symbol_max_index = symbol->index;
      }
      BFD_ASSERT (symbol->index >= ieee->external_symbol_min_index);
      symbol_count++;
      symbol->symbol.the_bfd = abfd;
      symbol->symbol.name = read_id(abfd);
      symbol->symbol.udata = (void *)NULL;
      symbol->symbol.flags = BSF_NO_FLAGS;
      break;
    case ieee_attribute_record_enum >> 8:
      {
	unsigned int symbol_name_index;
	unsigned int symbol_type_index;
	unsigned int symbol_attribute_def;
	bfd_vma value;
	next_byte(abfd);	/* Skip prefix */
	next_byte(abfd);
	symbol_name_index = must_parse_int(abfd);
	symbol_type_index = must_parse_int(abfd);
	symbol_attribute_def = must_parse_int(abfd);

	parse_int(abfd,&value);

      }
      break;
    case ieee_value_record_enum >> 8:
      {
	unsigned int symbol_name_index;
	ieee_symbol_index_type symbol_ignore;
	boolean pcrel_ignore;
	unsigned int extra_ignore;
	next_byte(abfd);
	next_byte(abfd);

	symbol_name_index = must_parse_int(abfd);
	parse_expression(abfd,
	     &symbol->symbol.value,
	     &symbol->symbol.section,
	     &symbol_ignore, 
	     &pcrel_ignore,
	     &extra_ignore);
	if (symbol->symbol.section != (asection *)NULL) {
	  symbol->symbol.flags  = BSF_GLOBAL | BSF_EXPORT;
	}
	else {
	  symbol->symbol.flags  = BSF_GLOBAL | BSF_EXPORT | BSF_ABSOLUTE;
	}
      }
      break;
    case ieee_weak_external_reference_enum:
      { bfd_vma size;
	bfd_vma value ;
	next_byte(abfd);
	/* Throw away the external reference index */
	(void)must_parse_int(abfd);
	/* Fetch the default size if not resolved */
	size = must_parse_int(abfd);
	/* Fetch the defautlt value if available */
	if (  parse_int(abfd, &value) == false) {
	  value = 0;
	}
	/* This turns into a common */
	symbol->symbol.flags = BSF_FORT_COMM;
	symbol->symbol.value = size;
      }
      break;

    case ieee_external_reference_enum: 
      next_byte(abfd);
      symbol = (ieee_symbol_type *)ieee_malloc(abfd, sizeof(ieee_symbol_type));
      symbol_count++;
      *prev_reference_ptr = symbol;
      prev_reference_ptr = &symbol->next;
      symbol->index = must_parse_int(abfd);
      symbol->symbol.the_bfd = abfd;
      symbol->symbol.name = read_id(abfd);
      symbol->symbol.udata = (void *)NULL;
      symbol->symbol.section = (asection *)NULL;
      symbol->symbol.value = (bfd_vma)0;
      symbol->symbol.flags = BSF_UNDEFINED;
      if (symbol->index > ieee->external_reference_max_index) {
	ieee->external_reference_max_index = symbol->index;
      }
      BFD_ASSERT (symbol->index >= ieee->external_reference_min_index);
      break;

    default:
      loop = false;
    }
  }

  if (ieee->external_symbol_max_index != 0) {
    ieee->external_symbol_count = 
      ieee->external_symbol_max_index -
	ieee->external_symbol_min_index + 1  ;
  }
  else  {
    ieee->external_symbol_count = 0;
  }


  if(ieee->external_reference_max_index != 0) {
    ieee->external_reference_count = 
      ieee->external_reference_max_index -
	ieee->external_reference_min_index + 1;
  }
  else {
    ieee->external_reference_count = 0;
  }

  abfd->symcount =
    ieee->external_reference_count +  ieee->external_symbol_count;

  if (symbol_count != abfd->symcount) {
    /* There are gaps in the table -- */
    ieee->symbol_table_full = false;
  }
  *prev_symbols_ptr = (ieee_symbol_type *)NULL;
  *prev_reference_ptr = (ieee_symbol_type *)NULL;
}

static void
DEFUN(ieee_slurp_symbol_table,(abfd),
      bfd *abfd)
{
  if (ieee_data(abfd)->read_symbols == false) {
    ieee_slurp_external_symbols(abfd);
    ieee_data(abfd)->read_symbols= true;
  }
}

size_t
DEFUN(ieee_get_symtab_upper_bound,(abfd),
      bfd *abfd)
{
  ieee_slurp_symbol_table (abfd);

  return (abfd->symcount != 0) ? 
    (abfd->symcount+1) * (sizeof (ieee_symbol_type *)) : 0;
}

/* 
Move from our internal lists to the canon table, and insert in
symbol index order
*/

extern bfd_target ieee_vec;

unsigned int
DEFUN(ieee_get_symtab,(abfd, location),
      bfd *abfd AND
      asymbol **location)
{
  ieee_symbol_type *symp;
  static bfd dummy_bfd;
  static asymbol empty_symbol =
    { &dummy_bfd," ieee empty",(symvalue)0,BSF_DEBUGGING | BSF_FAKE};

  ieee_data_type *ieee = ieee_data(abfd);
  dummy_bfd.xvec= &ieee_vec;
  ieee_slurp_symbol_table(abfd);

  if (ieee->symbol_table_full == false) {
    /* Arrgh - there are gaps in the table, run through and fill them */
    /* up with pointers to a null place */
    unsigned int i;
    for (i= 0; i < abfd->symcount; i++) {
      location[i] = &empty_symbol;
    }
  }


  ieee->external_symbol_base_offset= -  ieee->external_symbol_min_index;
  for (symp = ieee_data(abfd)->external_symbols;
       symp != (ieee_symbol_type *)NULL;
       symp = symp->next) {
    /* Place into table at correct index locations */
    location[symp->index + ieee->external_symbol_base_offset] = &symp->symbol;

  }

  /* The external refs are indexed in a bit */
  ieee->external_reference_base_offset   =
    -  ieee->external_reference_min_index +ieee->external_symbol_count ;

  for (symp = ieee_data(abfd)->external_reference;
       symp != (ieee_symbol_type *)NULL;
       symp = symp->next) {
    location[symp->index + ieee->external_reference_base_offset] =
      &symp->symbol;

  }



  location[abfd->symcount] = (asymbol *)NULL;

  return abfd->symcount;
}


static void
DEFUN(ieee_slurp_sections,(abfd),
      bfd *abfd)
{
  ieee_data_type *ieee = ieee_data(abfd);
  file_ptr offset = ieee->w.r.section_part;

  asection *section = (asection *)NULL;

  if (offset != 0) {
    bfd_byte section_type[3];
    ieee_seek(abfd, offset);
    while (true) {
      switch (this_byte(abfd)) {
      case ieee_section_type_enum:
	{
	  unsigned int section_index ;
	  next_byte(abfd);
	  section_index = must_parse_int(abfd);
	  /* Fixme to be nice about a silly number of sections */
	  BFD_ASSERT(section_index < NSECTIONS);

	  section = bfd_make_section(abfd, " tempname");
	  ieee->section_table[section_index] = section;
	  section->flags = SEC_NO_FLAGS;
	  section->target_index = section_index;
	  section_type[0] =  this_byte_and_next(abfd);
	  switch (section_type[0]) {
	  case 0xC3:
	    section_type[1] = this_byte(abfd);
	    section->flags = SEC_LOAD;
	    switch (section_type[1]) {
	    case 0xD0:
	      /* Normal code */
	      next_byte(abfd);
	      section->flags |= SEC_LOAD | SEC_CODE;
	      break;
	    case 0xC4:
	      next_byte(abfd);
	      section->flags |= SEC_LOAD  | SEC_DATA;
	      /* Normal data */
	      break;
	    case 0xD2:
	      next_byte(abfd);
	      /* Normal rom data */
	      section->flags |= SEC_LOAD | SEC_ROM | SEC_DATA;
	      break;
	    default:
	      break;
	    }
	  }
	  section->name = read_id(abfd);
	  { bfd_vma parent, brother, context;
	    parse_int(abfd, &parent);
	    parse_int(abfd, &brother);
	    parse_int(abfd, &context);
	  }


	}
	break;
      case ieee_section_alignment_enum:
	{ 
	  unsigned int section_index;
	  bfd_vma value;
	  next_byte(abfd);
	  section_index = must_parse_int(abfd);
	  if (section_index > ieee->section_count) {
	    ieee->section_count = section_index;
	  }
	  ieee->section_table[section_index]->alignment_power =
	    bfd_log2(must_parse_int(abfd));
	  (void)parse_int(abfd, & value);
	}
	break;
      case ieee_e2_first_byte_enum: 
	{
	  ieee_record_enum_type t = read_2bytes(abfd);
	  switch (t) {
	  case ieee_section_size_enum:
	    section = ieee->section_table[must_parse_int(abfd)];
	    section->size = must_parse_int(abfd);
	    break;
	  case ieee_physical_region_size_enum:
	    section = ieee->section_table[must_parse_int(abfd)];
	    section->size = must_parse_int(abfd);
	    break;
	  case ieee_region_base_address_enum:
	    section = ieee->section_table[must_parse_int(abfd)];
	    section->vma = must_parse_int(abfd);
	    break;
	  case ieee_mau_size_enum:
	    must_parse_int(abfd);
	    must_parse_int(abfd);
	    break;
	  case ieee_m_value_enum:
	    must_parse_int(abfd);
	    must_parse_int(abfd);
	    break;
	  case ieee_section_base_address_enum:
	    section = ieee->section_table[must_parse_int(abfd)];
	    section->vma = must_parse_int(abfd);
	    break;
	  case ieee_section_offset_enum:
	    (void) must_parse_int(abfd);
	    (void) must_parse_int(abfd);
	    break;
	  default:
	    return;
	  }
	}
	break;
      default:
	return;
      }
    }
  }
}

/***********************************************************************
*  archive stuff 
*/
bfd_target *
DEFUN(ieee_archive_p,(abfd),
      bfd *abfd)
{
  char *library;
  boolean loop;
  ieee_ar_data_type *ar;
  unsigned int i;
  return 0;
  ieee_seek(abfd, (file_ptr) 0);
  if (this_byte(abfd) != Module_Beginning) return (bfd_target*)NULL;
  next_byte(abfd);
  library= read_id(abfd);
  if (strcmp(library , "LIBRARY") != 0) {
    free(library);
    return (bfd_target *)NULL;
  }
  /* Throw away the filename */
  free( read_id(abfd));
  /* This must be an IEEE archive, so we'll buy some space to do
     things */
  ar = (ieee_ar_data_type *) malloc(sizeof(ieee_ar_data_type));
  ieee_ar_data(abfd) = ar;
  ar->element_count = 0;
  ar->element_index = 0;
  obstack_init(&ar->element_obstack);

  next_byte(abfd);		/* Drop the ad part */
  must_parse_int(abfd);		/* And the two dummy numbers */
  must_parse_int(abfd);

  loop = true;
  /* Read the index of the BB table */
  while (loop) {
    ieee_ar_obstack_type t; 
    int rec =read_2bytes(abfd);
    if (rec ==ieee_assign_value_to_variable_enum) {
      int record_number = must_parse_int(abfd);
      t.file_offset = must_parse_int(abfd);
      t.abfd = (bfd *)NULL;
      ar->element_count++;
      obstack_grow(&ar->element_obstack, (PTR)&t, sizeof(t));
    }
    else loop = false;
  }
  ar->elements = (ieee_ar_obstack_type *)obstack_base(&ar->element_obstack);

  /* Now scan the area again, and replace BB offsets with file */
  /* offsets */


  for (i = 2; i < ar->element_count; i++) {
    ieee_seek(abfd, ar->elements[i].file_offset);
    next_byte(abfd);		/* Drop F8 */
    next_byte(abfd);		/* Drop 14 */
    must_parse_int(abfd);	/* Drop size of block */
    if (must_parse_int(abfd) != 0) {
      /* This object has been deleted */
      ar->elements[i].file_offset = 0;
    }
    else {
      ar->elements[i].file_offset = must_parse_int(abfd);
    }
  }

  obstack_finish(&ar->element_obstack);
  return abfd->xvec;
}

static boolean
DEFUN(ieee_mkobject,(abfd),
      bfd *abfd)
{
  struct obstack tmp_obstack;
  ieee_data_type *ieee;
  obstack_init(&tmp_obstack);
  BFD_ASSERT(ieee_data(abfd) == 0);
  ieee_data(abfd) =
    (ieee_data_type*)obstack_alloc(&tmp_obstack,sizeof(ieee_data_type));
  ieee = ieee_data(abfd);
  ieee->ieee_obstack = tmp_obstack;
  return true;
}

bfd_target *
DEFUN(ieee_object_p,(abfd),
      bfd *abfd)
{
  char *processor;
  unsigned int part;
  ieee_data_type *ieee;
  char buffer[300];
  ieee_data(abfd) = 0;
  ieee_mkobject(abfd);
  ieee = ieee_data(abfd);
  
  /* Read the first few bytes in to see if it makes sense */
  bfd_read(buffer, 1, sizeof(buffer), abfd);

  ptr(abfd)= buffer;
  if (*(ptr(abfd)++) != Module_Beginning) goto fail;
  

  ieee->read_symbols= false;
  ieee->read_data= false;
  ieee->section_count = 0;
  ieee->external_symbol_max_index = 0;
  ieee->external_symbol_min_index = IEEE_PUBLIC_BASE;
  ieee->external_reference_min_index =IEEE_REFERENCE_BASE;
  ieee->external_reference_max_index = 0;
  memset((PTR)ieee->section_table, 0,	 sizeof(ieee->section_table));

  processor = ieee->mb.processor = read_id(abfd);
  if (strcmp(processor,"LIBRARY") == 0) goto fail;
  ieee->mb.module_name = read_id(abfd);
  if (abfd->filename == (char *)NULL) {
    abfd->filename =  ieee->mb.module_name;
  }
  /* Determine the architecture and machine type of the object file.  */
  bfd_scan_arch_mach(processor, &abfd->obj_arch, &abfd->obj_machine);

  if (this_byte(abfd) != ieee_address_descriptor_enum) {
    goto fail;
  }
  next_byte(abfd);	

  if (parse_int(abfd, &ieee->ad.number_of_bits_mau) == false) {
    goto fail;
  }
  if(parse_int(abfd, &ieee->ad.number_of_maus_in_address) == false) {
    goto fail;
  }

  /* If there is a byte order info, take it */
  if (this_byte(abfd) == ieee_variable_L_enum ||
      this_byte(abfd) == ieee_variable_M_enum)
    next_byte(abfd);


  for (part = 0; part < N_W_VARIABLES; part++) {
    boolean ok;
    if (read_2bytes(abfd) != ieee_assign_value_to_variable_enum) {
      goto fail;
    }
    if (this_byte_and_next(abfd) != part)  {
      goto fail;
    }

    ieee->w.offset[part] = parse_i(abfd, &ok);
    if (ok==false) {
      goto fail;
    }

  }
  abfd->flags = HAS_SYMS;

/* By now we know that this is a real IEEE file, we're going to read
   the whole thing into memory so that we can run up and down it
   quickly. We can work out how big the file is from the trailer
   record */

  ieee_data(abfd)->first_byte = ieee_malloc(abfd, ieee->w.r.me_record
					    + 50);
  bfd_seek(abfd, 0, 0);
  bfd_read(ieee_data(abfd)->first_byte, 1,   ieee->w.r.me_record+50,  abfd);

  ieee_slurp_sections(abfd);
  return abfd->xvec;
 fail:
  obstack_finish(&ieee->ieee_obstack);
  return (bfd_target *)NULL;
}


void 
DEFUN(ieee_print_symbol,(ignore_abfd, file,  symbol, how),
      bfd *ignore_abfd AND
      FILE *file AND
      asymbol *symbol AND
      bfd_print_symbol_enum_type how)
{
  switch (how) {
  case bfd_print_symbol_name_enum:
    fprintf(file,"%s", symbol->name);
    break;
  case bfd_print_symbol_type_enum:
#if 0
    fprintf(file,"%4x %2x",aout_symbol(symbol)->desc & 0xffff,
	    aout_symbol(symbol)->other  & 0xff);
#endif
    BFD_FAIL();
    break;
  case bfd_print_symbol_all_enum:
      {
	CONST char *section_name = symbol->section == (asection *)NULL ?
	  "*abs" : symbol->section->name;

	bfd_print_symbol_vandf((void *)file,symbol);

	fprintf(file," %-5s %04x %02x %s",
		section_name,
		(unsigned)	      ieee_symbol(symbol)->index,
		(unsigned)	      0, /*
					   aout_symbol(symbol)->desc & 0xffff,
					   aout_symbol(symbol)->other  & 0xff,*/
		symbol->name);
      }
    break;
  }
}



/* Read in all the section data and relocation stuff too */
static boolean 
DEFUN(ieee_slurp_section_data,(abfd),
      bfd *abfd)
{
  bfd_byte *location_ptr ;
  ieee_data_type *ieee = ieee_data(abfd);
  unsigned int section_number ;

  ieee_per_section_type *current_map;
  asection *s;
  /* Seek to the start of the data area */
  if (ieee->read_data== true)  return true;
  ieee->read_data = true;
  ieee_seek(abfd, ieee->w.r.data_part);

  /* Allocate enough space for all the section contents */


  for (s = abfd->sections; s != (asection *)NULL; s = s->next) {
    ieee_per_section_type *per = (ieee_per_section_type *) s->used_by_bfd;
    per->data = (bfd_byte *) ieee_malloc(abfd, s->size);
    /*SUPPRESS 68*/
    per->reloc_tail_ptr =
      (ieee_reloc_type **)&(s->relocation);
  }



  while (true) {
    switch (this_byte(abfd)) 
      {
	/* IF we see anything strange then quit */
      default:
	return true;

      case ieee_set_current_section_enum:
	next_byte(abfd);
	section_number = must_parse_int(abfd);
	s = ieee->section_table[section_number];
	current_map = (ieee_per_section_type *) s->used_by_bfd;
	location_ptr = current_map->data - s->vma;
	/* The document I have says that Microtec's compilers reset */
	/* this after a sec section, even though the standard says not */
	/* to. SO .. */
	current_map->pc =s->vma;
	break;

      case ieee_load_constant_bytes_enum:
	{
	  unsigned int number_of_maus;
	  unsigned int i;
	  next_byte(abfd);
	  number_of_maus = must_parse_int(abfd);

	  for (i = 0; i < number_of_maus; i++) {
	    location_ptr[current_map->pc++]= this_byte(abfd);
	    next_byte(abfd);
	  }
	}
	break;

      case ieee_e2_first_byte_enum:
	next_byte(abfd);
	switch (this_byte(abfd))
	  {
	  case ieee_set_current_pc_enum & 0xff:
	    {
	      bfd_vma value;
	      asection *dsection;
	      ieee_symbol_index_type symbol;
	      unsigned int extra;
	      boolean pcrel;
	      next_byte(abfd);
	      must_parse_int(abfd); /* Thow away section #*/
	      parse_expression(abfd, &value, &dsection, &symbol, &pcrel, &extra);
	      current_map->pc = value;
	      BFD_ASSERT((unsigned)(value - s->vma) <= s->size);
	    }
	    break;

	  case ieee_value_starting_address_enum & 0xff:
	    /* We've got to the end of the data now - */
	    return true;
	    break;
	  default:
	    BFD_FAIL();
	    return true;
	  }
	break;
      case ieee_load_with_relocation_enum:
	{
	  boolean loop = true;
	  next_byte(abfd);
	  while (loop) 
	    {
	      switch (this_byte(abfd)) 
		{
		case ieee_variable_R_enum:

		case ieee_function_signed_open_b_enum:
		case ieee_function_unsigned_open_b_enum:
		case ieee_function_either_open_b_enum:
		  {
		    unsigned int extra;
		    boolean pcrel;

		    ieee_reloc_type *r =
		      (ieee_reloc_type *) ieee_malloc(abfd,
				      sizeof(ieee_reloc_type));

		    *(current_map->reloc_tail_ptr) = r;
		    current_map->reloc_tail_ptr= &r->next;
		    r->next = (ieee_reloc_type *)NULL;
		    next_byte(abfd);
		    parse_expression(abfd,
			 &r->relent.addend,
			 &r->relent.section,
			 &r->symbol,
			 &pcrel,
			 &extra);
		    r->relent.address = current_map->pc;
		    s->reloc_count++;
		    switch (this_byte(abfd)) {
		    case ieee_function_signed_close_b_enum:
		      next_byte(abfd);
		      break;
		    case ieee_function_unsigned_close_b_enum:
		      next_byte(abfd);
		      break;
		    case ieee_function_either_close_b_enum:
		      next_byte(abfd);
		      break;
		    default:
		      break;
		    }
		    /* Build a relocation entry for this type */
		    if (this_byte(abfd) == ieee_comma) {

		      next_byte(abfd);
		      /* Fetch number of bytes to pad */
		      extra = must_parse_int(abfd);
		      BFD_FAIL();
		    }
		    switch (extra) {
		    case 0:
		    case 4:
		      location_ptr[current_map->pc++] = 0;
		      location_ptr[current_map->pc++] = 0;
		      location_ptr[current_map->pc++] = 0;
		      location_ptr[current_map->pc++] = 0;
		      r->relent.howto = &abs32_howto;
		      break;
		    case 2:
		      location_ptr[current_map->pc++] = 0;
		      location_ptr[current_map->pc++] = 0;
		      r->relent.howto = &abs16_howto;
		      break;

		    default:
		      BFD_FAIL();
		      break;
		    }
		  }
		  break;
		default: 
		  {
		    bfd_vma this_size ;
		    if (parse_int(abfd, &this_size) == true) {
		      unsigned int i;
		      for (i = 0; i < this_size; i++) {
			location_ptr[current_map->pc ++] = this_byte(abfd);
			next_byte(abfd);
		      }
		    }
		    else {
		      loop = false;
		    }
		  }
		}
	    }
	}
      }
  }
}



boolean
DEFUN(ieee_new_section_hook,(abfd, newsect),
      bfd *abfd AND
      asection *newsect)
{
  newsect->used_by_bfd = (PTR)
    ieee_malloc(abfd, sizeof(ieee_per_section_type));
  ieee_per_section( newsect)->data = (bfd_byte *)NULL;
  ieee_per_section(newsect)->section = newsect;
  return true;
}


unsigned int
DEFUN(ieee_get_reloc_upper_bound,(abfd, asect),
      bfd *abfd AND
      sec_ptr asect)
{
  ieee_slurp_section_data(abfd);
  return (asect->reloc_count+1) * sizeof(arelent *);
}

static boolean
DEFUN(ieee_get_section_contents,(abfd, section, location, offset, count),
      bfd *abfd AND
      sec_ptr section AND
      void  *location AND
      file_ptr offset AND
      unsigned      int count)
{
  ieee_per_section_type *p = (ieee_per_section_type *) section->used_by_bfd;
  ieee_slurp_section_data(abfd);
  (void)  memcpy(location, p->data + offset, count);
  return true;
}


unsigned int
DEFUN(ieee_canonicalize_reloc,(abfd, section, relptr, symbols),
      bfd *abfd AND
      sec_ptr section AND
      arelent **relptr AND
      asymbol **symbols)
{
  ieee_per_section_type *p = (ieee_per_section_type *) section->used_by_bfd;
  ieee_reloc_type *src = (ieee_reloc_type *)(section->relocation);
  ieee_data_type *ieee = ieee_data(abfd);

  while (src != (ieee_reloc_type *)NULL) {
    /* Work out which symbol to attatch it this reloc to */
    switch (src->symbol.letter) {
    case 'X':
      src->relent.sym_ptr_ptr =
	symbols + src->symbol.index +  ieee->external_reference_base_offset;
      break;
    case 0:
      src->relent.sym_ptr_ptr = (asymbol **)NULL;
      break;
    default:

      BFD_FAIL();
    }
    *relptr++ = &src->relent;
    src = src->next;
  }
  *relptr = (arelent *)NULL;
  return section->reloc_count;
}

boolean
DEFUN(ieee_set_arch_mach,(abfd, arch, machine),
      bfd *abfd AND
      enum bfd_architecture arch AND
      unsigned long machine)
{
  abfd->obj_arch = arch;
  abfd->obj_machine = machine;
  return true;
}


static int 
DEFUN(comp,(ap, bp),
     CONST PTR ap AND
     CONST PTR bp)
{
  arelent *a = *((arelent **)ap);
  arelent *b = *((arelent **)bp);
  return a->address - b->address;
}

/*
Write the section headers
*/

static void
DEFUN(ieee_write_section_part,(abfd),
      bfd *abfd)
{
  ieee_data_type *ieee = ieee_data(abfd);
  asection *s;
  ieee->w.r.section_part = bfd_tell(abfd);
  for (s = abfd->sections; s != (asection *)NULL; s=s->next) {
    ieee_write_byte(abfd, ieee_section_type_enum);
    ieee_write_byte(abfd, s->index + IEEE_SECTION_NUMBER_BASE);

    switch (s->flags & (SEC_LOAD | SEC_CODE | SEC_DATA | SEC_ROM)) {
    case  SEC_LOAD | SEC_CODE:
      /* Normal named section, code */
      ieee_write_byte(abfd, ieee_variable_C_enum);
      ieee_write_byte(abfd, ieee_variable_P_enum);
      break;
    case  SEC_LOAD | SEC_DATA:
      /* Normal named section, data */
      ieee_write_byte(abfd, ieee_variable_C_enum);
      ieee_write_byte(abfd, ieee_variable_D_enum);
      break;
    case  SEC_LOAD | SEC_DATA | SEC_ROM:
      /* Normal named section, data rom */
      ieee_write_byte(abfd, ieee_variable_C_enum);
      ieee_write_byte(abfd, ieee_variable_R_enum);
      break;
    default:
      ieee_write_byte(abfd, ieee_variable_C_enum);
      break;
    }

    ieee_write_id(abfd, s->name);
    ieee_write_int(abfd, 0);	/* Parent */
    ieee_write_int(abfd, 0);	/* Brother */
    ieee_write_int(abfd, 0);	/* Context */

    /* Alignment */
    ieee_write_byte(abfd, ieee_section_alignment_enum);
    ieee_write_byte(abfd, s->index + IEEE_SECTION_NUMBER_BASE);
    ieee_write_int(abfd, 1 << s->alignment_power);

    /* Size */
    ieee_write_2bytes(abfd, ieee_section_size_enum);
    ieee_write_byte(abfd, s->index + IEEE_SECTION_NUMBER_BASE);
    ieee_write_int(abfd, s->size);

    /* Vma */
    ieee_write_2bytes(abfd, ieee_region_base_address_enum);
    ieee_write_byte(abfd, s->index + IEEE_SECTION_NUMBER_BASE);
    ieee_write_int(abfd, s->vma);

  }
}



/* write the data in an ieee way */
static void
DEFUN(ieee_write_data_part,(abfd),
      bfd *abfd)
{
  asection *s;
  ieee_data_type *ieee = ieee_data(abfd);
  ieee->w.r.data_part = bfd_tell(abfd);
  for (s = abfd->sections; s != (asection *)NULL; s = s->next) 
      {
	bfd_byte  header[11];
	bfd_byte *stream = ieee_per_section(s)->data;
	arelent **p = s->orelocation;
	unsigned int relocs_to_go = s->reloc_count;
	size_t current_byte_index = 0;


	/* Sort the reloc records so we can insert them in the correct
	   places */
	if (s->reloc_count != 0) {
	  qsort(s->orelocation,
		s->reloc_count,
		sizeof(arelent **),
		comp);
	}


	/* Output the section preheader */
	header[0] =ieee_set_current_section_enum;
	header[1] = s->index + IEEE_SECTION_NUMBER_BASE;

	header[2] = ieee_set_current_pc_enum >> 8;
	header[3]= ieee_set_current_pc_enum  & 0xff;
	header[4] = s->index + IEEE_SECTION_NUMBER_BASE;
	ieee_write_int5(header+5, s->vma );
	header[10] = ieee_load_with_relocation_enum;
	bfd_write(header, 1, sizeof(header), abfd);

	/* Output the data stream as the longest sequence of bytes
	   possible, allowing for the a reasonable packet size and
	   relocation stuffs */

	if (stream == (void *)NULL) {
	  /* Outputting a section without data, fill it up */
	  stream = ieee_malloc(abfd, s->size);
	  memset(stream, 0, s->size);
	}
	while (current_byte_index < s->size) {
	  size_t run;
	  unsigned int MAXRUN = 32;
	  if (p && *p) {
	    run = (*p)->address - current_byte_index;
	  }
	  else {
	    run = MAXRUN;
	  }
	  if (run > s->size - current_byte_index) {
	    run = s->size - current_byte_index;
	  }

	  if (run != 0) {
	    /* Output a stream of bytes */
	    ieee_write_int(abfd, run);
	    bfd_write(stream + current_byte_index, 
		      1,
		      run,
		      abfd);
	    current_byte_index += run;
	  }
	  /* Output any relocations here */
	  if (relocs_to_go && (*p) && (*p)->address == current_byte_index) {
	    while (relocs_to_go && (*p) && (*p)->address == current_byte_index) {

	      arelent *r = *p;
	      ieee_write_byte(abfd, ieee_function_either_open_b_enum);
	      if (r->sym_ptr_ptr != (asymbol **)NULL) {
		ieee_write_expression(abfd, r->addend,
				      r->section,
				      *(r->sym_ptr_ptr));
	      }
	      else {
		ieee_write_expression(abfd, r->addend,
				      r->section,
				      (asymbol *)NULL);
	      }
	      ieee_write_byte(abfd,
			      ieee_function_either_close_b_enum);
	      relocs_to_go --;
	      p++;
	    }
	    /* FIXME !! Are all relocations 4 bytes ? */
	    current_byte_index += 4;
	  }
	}
      }

}



static void
DEFUN(init_for_output,(abfd),
      bfd *abfd)
{
  asection *s; 
  for (s = abfd->sections; s != (asection *)NULL; s = s->next) {
    if (s->size != 0) {
      ieee_per_section(s)->data = (bfd_byte *)(ieee_malloc(abfd, s->size));
    }
  }
}

/** exec and core file sections */

/* set section contents is complicated with IEEE since the format is 
* not a byte image, but a record stream.
*/
boolean
DEFUN(ieee_set_section_contents,(abfd, section, location, offset, count),
      bfd *abfd AND
      sec_ptr section AND
      unsigned char *location AND
      file_ptr offset AND
      int count)
{
  if (ieee_per_section(section)->data == (bfd_byte *)NULL) {
    init_for_output(abfd);
  }
  (void) memcpy(ieee_per_section(section)->data + offset, location, count);
  return true;
}

/*
write the external symbols of a file, IEEE considers two sorts of
external symbols, public, and referenced. It uses to internal forms
to index them as well. When we write them out we turn their symbol
values into indexes from the right base.
*/
static void
DEFUN(ieee_write_external_part,(abfd),
      bfd *abfd)
{
  asymbol **q;
  ieee_data_type *ieee = ieee_data(abfd);

  unsigned int reference_index = IEEE_REFERENCE_BASE;
  unsigned int public_index = IEEE_PUBLIC_BASE;
  ieee->w.r.external_part = bfd_tell(abfd);
  if (abfd->outsymbols != (asymbol **)NULL) {
    for (q = abfd->outsymbols; *q  != (asymbol *)NULL; q++) {
      asymbol *p = *q;
      if (p->flags & BSF_UNDEFINED) {
	/* This must be a symbol reference .. */
	ieee_write_byte(abfd, ieee_external_reference_enum);
	ieee_write_int(abfd, reference_index);
	ieee_write_id(abfd, p->name);
	p->value = reference_index;
	reference_index++;
      }
      else if(p->flags & BSF_FORT_COMM) {
	/* This is a weak reference */
	ieee_write_byte(abfd, ieee_external_reference_enum);
	ieee_write_int(abfd, reference_index);
	ieee_write_id(abfd, p->name);
	ieee_write_byte(abfd, ieee_weak_external_reference_enum);
	ieee_write_int(abfd, reference_index);
	ieee_write_int(abfd, p->value);
	ieee_write_int(abfd, BFD_FORT_COMM_DEFAULT_VALUE);
	p->value = reference_index;
	reference_index++;
      }
      else if(p->flags & BSF_GLOBAL) {
	/* This must be a symbol definition */

	ieee_write_byte(abfd, ieee_external_symbol_enum);
	ieee_write_int(abfd, public_index );
	ieee_write_id(abfd, p->name);

	/* Write out the value */
	ieee_write_2bytes(abfd, ieee_value_record_enum);
	ieee_write_int(abfd, public_index);
	if (p->section != (asection *)NULL)
	  {
	    ieee_write_expression(abfd,
				  p->value + p->section->output_offset,
				  p->section->output_section,
				  (asymbol *)NULL);
	  }
	else
	  {
	    ieee_write_expression(abfd,
				  p->value,
				  (asection *)NULL,
				  (asymbol *)NULL);
	  }
	p->value = public_index;
	public_index++;
      }
      else {
	/* This can happen - when there are gaps in the symbols read */
	/* from an input ieee file */
      }
    }
  }

}

static
void 
DEFUN(ieee_write_me_part,(abfd),
      bfd *abfd)
{
  ieee_data_type *ieee= ieee_data(abfd);
  ieee->w.r.me_record = bfd_tell(abfd);

  ieee_write_2bytes(abfd, ieee_value_starting_address_enum);
  ieee_write_int(abfd, abfd->start_address);
  ieee_write_byte(abfd, ieee_module_end_enum);

}
boolean
DEFUN(ieee_write_object_contents,(abfd),
      bfd *abfd)
{
  ieee_data_type *ieee = ieee_data(abfd);
  unsigned int i;
  file_ptr   old;
  /* Fast forward over the header area */
  bfd_seek(abfd, 0, 0);
  ieee_write_byte(abfd, ieee_module_beginning_enum);

  ieee_write_id(abfd, bfd_printable_arch_mach(abfd->obj_arch,
					      abfd->obj_machine));
  ieee_write_id(abfd, abfd->filename);
  ieee_write_byte(abfd, ieee_address_descriptor_enum);
  ieee_write_byte(abfd, 8);	/* Bits per MAU */
  ieee_write_byte(abfd, 4);	/* MAU's per address */

  /* Fast forward over the variable bits */	
  old = bfd_tell(abfd);
  bfd_seek(abfd, 8 * N_W_VARIABLES, 1);

  /*
    First write the symbols, this changes their values into table 
    indeces so we cant use it after this point
    */
  ieee_write_external_part(abfd);     
  ieee_write_byte(abfd, ieee_record_seperator_enum);

  ieee_write_section_part(abfd);
  ieee_write_byte(abfd, ieee_record_seperator_enum);
  /* 
    Can only write the data once the symbols have been written since
    the data contains relocation information which points to the
    symbols 
    */
  ieee_write_data_part(abfd);     
  ieee_write_byte(abfd, ieee_record_seperator_enum);

  /*
    At the end we put the end !
    */
  ieee_write_me_part(abfd);


  /* Generate the header */
  bfd_seek(abfd, old, false);

  for (i= 0; i < N_W_VARIABLES; i++) {
    ieee_write_2bytes(abfd,ieee_assign_value_to_variable_enum);
    ieee_write_byte(abfd, i);
    ieee_write_int5_out(abfd, ieee->w.offset[i]);
  }
  return true;
}




/* Native-level interface to symbols. */

/* We read the symbols into a buffer, which is discarded when this
function exits.  We read the strings into a buffer large enough to
hold them all plus all the cached symbol entries. */

asymbol *
DEFUN(ieee_make_empty_symbol,(abfd),
      bfd *abfd)
{

  ieee_symbol_type  *new =
    (ieee_symbol_type *)zalloc (sizeof (ieee_symbol_type));
  new->symbol.the_bfd = abfd;
  return &new->symbol;

}

void
DEFUN(ieee_reclaim_symbol_table, (abfd),
      bfd *abfd)
{
#if 0
  asection *section;

  if (!bfd_get_symcount (abfd)) return;

  for (section = abfd->sections; section != NULL; section = section->next)
    if (section->relocation) {
      free ((void *)section->relocation);
      section->relocation = NULL;
      section->reloc_count = 0;
    }

  bfd_get_symcount (abfd) = 0;
  free ((void *)obj_aout_symbols (abfd));
  obj_aout_symbols (abfd) = (aout_symbol_type *)NULL;
#endif
}




/* Obsolete procedural interface; better to look at the cache directly */

/* User should have checked the file flags; perhaps we should return
BFD_NO_MORE_SYMBOLS if there are none? */

int
DEFUN(ieee_get_symcount_upper_bound,(abfd),
      bfd *abfd)
{
#if 0
  /* In case we're doing an output file or something...?  */
  if (bfd_get_symcount (abfd)) return bfd_get_symcount (abfd);

  return (exec_hdr (abfd)->a_syms) / (sizeof (struct nlist));
#endif
return 0;
}

symindex
DEFUN(ieee_get_first_symbol,(ignore_abfd),
      bfd * ignore_abfd)
{
  return 0;
}

symindex
DEFUN(ieee_get_next_symbol,(abfd, oidx),
      bfd *abfd AND
      symindex oidx)
{
#if 0
  if (oidx == BFD_NO_MORE_SYMBOLS) return BFD_NO_MORE_SYMBOLS;
  return ++oidx >= bfd_get_symcount (abfd) ? BFD_NO_MORE_SYMBOLS :
  oidx;
#endif
return 0;
}

char *
ieee_symbol_name (abfd, idx)
bfd *abfd;
symindex idx;
{
#if 0
  return (obj_aout_symbols (abfd) + idx)->symbol.name;
#endif
return 0;
}

long
ieee_symbol_value (abfd, idx)
bfd *abfd;
symindex idx;
{
#if 0
  return (obj_aout_symbols (abfd) + idx)->symbol.value;
#endif
return 0;
}

symclass
ieee_classify_symbol (abfd, idx)
bfd *abfd;
symindex idx;
{
#if 0
  aout_symbol_type *sym = obj_aout_symbols (abfd) + idx;

  if ((sym->symbol.flags & BSF_FORT_COMM) != 0)   return bfd_symclass_fcommon;
  if ((sym->symbol.flags & BSF_GLOBAL) != 0)    return bfd_symclass_global;
  if ((sym->symbol.flags & BSF_DEBUGGING) != 0)  return bfd_symclass_debugger;
  if ((sym->symbol.flags & BSF_UNDEFINED) != 0) return bfd_symclass_undefined;
#endif
  return bfd_symclass_unknown;
}

boolean
ieee_symbol_hasclass (abfd, idx, class)
bfd *abfd;
symindex idx;
symclass class;
{
#if 0
  aout_symbol_type *sym = obj_aout_symbols (abfd) + idx;
  switch (class) {
  case bfd_symclass_fcommon:
    return (sym->symbol.flags & BSF_FORT_COMM) ? true :false;
  case bfd_symclass_global:
    return (sym->symbol.flags & BSF_GLOBAL) ? true:false;
  case bfd_symclass_debugger:
    return (sym->symbol.flags & BSF_DEBUGGING) ? true:false;;
  case bfd_symclass_undefined:
    return (sym->symbol.flags & BSF_UNDEFINED) ? true:false;;
  default: return false;
  }
#endif
return 0;
}


void
ieee_reclaim_reloc (ignore_abfd, section)
bfd *ignore_abfd;
sec_ptr section;
{
#if 0
  if (section->relocation) {
    free (section->relocation);
    section->relocation = NULL;
    section->reloc_count = 0;
  }
#endif
}

boolean
ieee_close_and_cleanup (abfd)
bfd *abfd;
{
  if (bfd_read_p (abfd) == false)
    switch (abfd->format) {
    case bfd_archive:
      if (!_bfd_write_archive_contents (abfd)) {
	return false;
      }
      break;
    case bfd_object:
      if (!ieee_write_object_contents (abfd)) {
	return false;
      }
      break;
    default:
      bfd_error = invalid_operation;
      return false;
    }


  if (ieee_data(abfd) != (ieee_data_type *)NULL) {
    /* FIXME MORE LEAKS */

  }

  return true;
}

static bfd *
ieee_openr_next_archived_file(arch, prev)
bfd *arch;
bfd *prev;
{
  ieee_ar_data_type *ar = ieee_ar_data(arch);
  /* take the next one from the arch state, or reset */
  if (prev == (bfd *)NULL) {
    /* Reset the index - the first two entries are bogus*/
    ar->element_index = 2;
  }
  while (true) {  
    ieee_ar_obstack_type *p = ar->elements + ar->element_index;
    ar->element_index++;
    if (ar->element_index <= ar->element_count) {
      if (p->file_offset != (file_ptr)0) {
	if (p->abfd == (bfd *)NULL) {
	  p->abfd = _bfd_create_empty_archive_element_shell(arch);
	  p->abfd->origin = p->file_offset;
	}
	return p->abfd;
      }
    }
    else {
      return (bfd *)NULL;
    }

  }
}

static boolean
ieee_find_nearest_line(abfd,
			 section,
			 symbols,
			 offset,
			 filename_ptr,
			 functionname_ptr,
			 line_ptr)
bfd *abfd;
asection *section;
asymbol **symbols;
bfd_vma offset;
char **filename_ptr;
char **functionname_ptr;
unsigned int *line_ptr;
{
  return false;

}


static int
ieee_generic_stat_arch_elt(abfd, buf)
bfd *abfd;
struct stat *buf;
{
  ieee_ar_data_type *ar = ieee_ar_data(abfd);
  if (ar == (ieee_ar_data_type *)NULL) {
    bfd_error = invalid_operation;
    return -1;
  }
  else {
    buf->st_size = 0x1;
    buf->st_mode = 0666;
  return 0;
  }
}
static int 
DEFUN(ieee_sizeof_headers,(abfd),
      bfd *abfd)
{
return 0;
}

#define ieee_core_file_failing_command bfd_false
#define ieee_core_file_failing_signal bfd_false
#define ieee_core_file_matches_executable_p bfd_false
#define ieee_slurp_armap bfd_true
#define ieee_slurp_extended_name_table bfd_true
#define ieee_truncate_arname bfd_false
#define ieee_write_armap bfd_false
#define ieee_get_lineno bfd_false


/*SUPPRESS 460 */
bfd_target ieee_vec =
{
  "ieee",			/* name */
  bfd_target_ieee_flavour_enum,
  true,				/* target byte order */
  true,				/* target headers byte order */
  (HAS_RELOC | EXEC_P |		/* object flags */
   HAS_LINENO | HAS_DEBUG |
   HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
  (SEC_CODE|SEC_DATA|SEC_ROM|SEC_HAS_CONTENTS
   |SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
  ' ',				/* ar_pad_char */
  16,				/* ar_max_namelen */

  _do_getblong, _do_putblong, _do_getbshort, _do_putbshort, /* data */
  _do_getblong, _do_putblong, _do_getbshort, _do_putbshort, /* hdrs */

  {_bfd_dummy_target,
     ieee_object_p,		/* bfd_check_format */
     ieee_archive_p,
     bfd_false
     },
  {
    bfd_false,
    ieee_mkobject, 
    _bfd_generic_mkarchive,
    bfd_false
    },
JUMP_TABLE(ieee)
};