binutils-gdb/bfd/srec.c

/* BFD back-end for s-record objects.
   Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
   Written by Steve Chamberlain of Cygnus Support <sac@cygnus.com>.

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.  */

/*
SUBSECTION
	S-Record handling

DESCRIPTION
	
	Ordinary S-Records cannot hold anything but addresses and
	data, so that's all that we implement.

	The only interesting thing is that S-Records may come out of
	order and there is no header, so an initial scan is required
	to discover the minimum and maximum addresses used to create
	the vma and size of the only section we create.  We
	arbitrarily call this section ".text".

	When bfd_get_section_contents is called the file is read
	again, and this time the data is placed into a bfd_alloc'd
	area.

	Any number of sections may be created for output, we save them
	up and output them when it's time to close the bfd.

	An s record looks like:
	
EXAMPLE
	S<type><length><address><data><checksum>
	
DESCRIPTION
	Where
	o length
	is the number of bytes following upto the checksum. Note that
	this is not the number of chars following, since it takes two
	chars to represent a byte.
	o type
	is one of:
	0) header record
	1) two byte address data record
	2) three byte address data record
	3) four byte address data record
	7) four byte address termination record
	8) three byte address termination record
	9) two byte address termination record
	
	o address
	is the start address of the data following, or in the case of
	a termination record, the start address of the image
	o data
	is the data.
	o checksum
	is the sum of all the raw byte data in the record, from the length
	upwards, modulo 256 and subtracted from 255.


SUBSECTION
	Symbol S-Record handling

DESCRIPTION
	Some ICE equipment understands an addition to the standard
	S-Record format; symbols and their addresses can be sent
	before the data.

	The format of this is:
	($$ <modulename>
		(<space> <symbol> <address>)*)
	$$

	so a short symbol table could look like:

EXAMPLE
	$$ flash.x
	$$ flash.c
	  _port6 $0
	  _delay $4
	  _start $14
	  _etext $8036
	  _edata $8036
 	  _end $8036
	$$

DESCRIPTION
	We allow symbols to be anywhere in the data stream - the module names
	are always ignored.
		
*/

#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"

static boolean srec_write_record PARAMS ((bfd *, int, bfd_vma,
					  const unsigned char *,
					  const unsigned char *));
static boolean srec_write_header PARAMS ((bfd *));
static boolean srec_write_symbols PARAMS ((bfd *));

/* Macros for converting between hex and binary. */

static CONST char digs[] = "0123456789ABCDEF";

/* Table that gets filled in with numbers corresponding to hex chars. */

static char hex_value[256];

#define NOT_HEX 20
#define NIBBLE(x) hex_value[(unsigned char)(x)]
#define HEX(buffer) ((NIBBLE((buffer)[0])<<4) + NIBBLE((buffer)[1]))
#define TOHEX(d, x, ch) \
	d[1] = digs[(x) & 0xf]; \
	d[0] = digs[((x)>>4)&0xf]; \
	ch += ((x) & 0xff);
#define	ISHEX(x)  (hex_value[(unsigned char)(x)] != NOT_HEX)

/* Initialize by filling in the hex conversion array. */

static void
srec_init ()
{
  unsigned int i;
  static boolean inited = false;

  if (inited == false)
    {
      inited = true;

      for (i = 0; i < sizeof (hex_value); i++)
	{
	  hex_value[i] = NOT_HEX;
	}
      for (i = 0; i < 10; i++)
	{
	  hex_value[i + '0'] = i;
	}
      for (i = 0; i < 6; i++)
	{
	  hex_value[i + 'a'] = i + 10;
	  hex_value[i + 'A'] = i + 10;
	}
    }
}


/* The maximum number of bytes on a line is FF */
#define MAXCHUNK 0xff
/* The number of bytes we fit onto a line on output */
#define CHUNK 21

/* We cannot output our srecords as we see them, we have to glue them
   together, this is done in this structure : */

struct srec_data_list_struct
{
  unsigned char *data;
  bfd_vma where;
  bfd_size_type size;
  struct srec_data_list_struct *next;


};
typedef struct srec_data_list_struct srec_data_list_type;


typedef struct srec_data_struct
  {
    srec_data_list_type *head;
    srec_data_list_type *tail;
    unsigned int type;

    int done_symbol_read;
    int count;
    asymbol *symbols;
    char *strings;
    int symbol_idx;
    int string_size;
    int string_idx;
  }
tdata_type;

static boolean srec_write_section PARAMS ((bfd *, tdata_type *,
					   srec_data_list_type *));
static boolean srec_write_terminator PARAMS ((bfd *, tdata_type *));

/*
   called once per input S-Record, used to work out vma and size of data.
 */

static bfd_vma low, high;

/*ARGSUSED*/
static void
size_symbols (abfd, buf, len, val)
     bfd *abfd;
     char *buf;
     int len;
     int val;
{
  abfd->symcount++;
  abfd->tdata.srec_data->string_size += len + 1;
}

static void
fillup_symbols (abfd, buf, len, val)
     bfd *abfd;
     char *buf;
     int len;
     int val;
{
  if (!abfd->tdata.srec_data->done_symbol_read)
    {
      asymbol *p;
      if (abfd->tdata.srec_data->symbols == 0)
	{
	  abfd->tdata.srec_data->symbols = (asymbol *) bfd_alloc (abfd, abfd->symcount * sizeof (asymbol));
	  abfd->tdata.srec_data->strings = (char *) bfd_alloc (abfd, abfd->tdata.srec_data->string_size);
	  if (!abfd->tdata.srec_data->symbols || !abfd->tdata.srec_data->strings)
	    {
	      bfd_set_error (bfd_error_no_memory);
	      abort ();		/* FIXME */
	    }
	  abfd->tdata.srec_data->symbol_idx = 0;
	  abfd->tdata.srec_data->string_idx = 0;
	}

      p = abfd->tdata.srec_data->symbols + abfd->tdata.srec_data->symbol_idx++;
      p->the_bfd = abfd;
      p->name = abfd->tdata.srec_data->strings + abfd->tdata.srec_data->string_idx;
      memcpy ((char *) (p->name), buf, len + 1);
      abfd->tdata.srec_data->string_idx += len + 1;
      p->value = val;
      p->flags = BSF_EXPORT | BSF_GLOBAL;
      p->section = bfd_abs_section_ptr;
      p->udata.p = NULL;
    }
}
/*ARGSUSED*/
static void
size_srec (abfd, section, address, raw, length)
     bfd *abfd;
     asection *section;
     bfd_vma address;
     bfd_byte *raw;
     unsigned int length;
{
  if (address < low)
    low = address;
  if (address + length > high)
    high = address + length - 1;
}


/*
 called once per input S-Record, copies data from input into bfd_alloc'd area
 */

/*ARGSUSED*/
static void
fillup (abfd, section, address, raw, length)
     bfd *abfd;
     asection *section;
     bfd_vma address;
     bfd_byte *raw;
     unsigned int length;
{
  unsigned int i;
  bfd_byte *dst =
  (bfd_byte *) (section->used_by_bfd) + address - section->vma;
  /* length -1 because we don't read in the checksum */
  for (i = 0; i < length - 1; i++)
    {
      *dst = HEX (raw);
      dst++;
      raw += 2;
    }
}

/* Pass over an S-Record file, calling one of the above functions on each
   record.  */

static int
white (x)
     char x;
{
  return (x == ' ' || x == '\t' || x == '\n' || x == '\r');
}
static int
skipwhite (src, abfd)
     char *src;
     bfd *abfd;
{
  int eof = 0;
  while (white (*src) && !eof)
    {
      eof = (boolean) (bfd_read (src, 1, 1, abfd) != 1);
    }
  return eof;
}

static boolean
srec_mkobject (abfd)
     bfd *abfd;
{
  if (abfd->tdata.srec_data == 0)
    {
      tdata_type *tdata = (tdata_type *) bfd_alloc (abfd, sizeof (tdata_type));
      if (!tdata)
	{
	  bfd_set_error (bfd_error_no_memory);
	  return false;
	}
      abfd->tdata.srec_data = tdata;
      tdata->type = 1;
      tdata->head = NULL;
      tdata->tail = NULL;
    }
  return true;

}

static void
pass_over (abfd, func, symbolfunc, section)
     bfd *abfd;
     void (*func) ();
     void (*symbolfunc) ();
     asection *section;
{
  unsigned int bytes_on_line;
  boolean eof = false;

  srec_mkobject (abfd);
  /* To the front of the file */
  if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
    abort ();
  while (eof == false)
    {
      char buffer[MAXCHUNK];
      char *src = buffer;
      char type;
      bfd_vma address = 0;

      /* Find first 'S' or $ */
      eof = (boolean) (bfd_read (src, 1, 1, abfd) != 1);
      switch (*src)
	{
	default:
	  if (eof)
	    return;
	  break;

	case '$':
	  /* Inside a symbol definition - just ignore the module name */
	  while (*src != '\n' && !eof)
	    {
	      eof = (boolean) (bfd_read (src, 1, 1, abfd) != 1);
	    }
	  break;

	case ' ':
	  /* spaces - maybe just before a symbol */
	  while (*src != '\n' && *src != '\r' && white (*src))
	    {
	      eof = skipwhite (src, abfd);

	      {
		int val = 0;
		int slen = 0;
		char symbol[MAXCHUNK];

		/* get the symbol part */
		while (!eof && !white (*src) && slen < MAXCHUNK)
		  {
		    symbol[slen++] = *src;
		    eof = (boolean) (bfd_read (src, 1, 1, abfd) != 1);
		  }
		symbol[slen] = 0;
		eof = skipwhite (src, abfd);
		/* skip the $ for the hex value */
		if (*src == '$')
		  {
		    eof = (boolean) (bfd_read (src, 1, 1, abfd) != 1);
		  }

		/* Scan off the hex number */
		while (isxdigit (*src))
		  {
		    val *= 16;
		    if (isdigit (*src))
		      val += *src - '0';
		    else if (isupper (*src))
		      {
			val += *src - 'A' + 10;
		      }
		    else
		      {
			val += *src - 'a' + 10;
		      }
		    eof = (boolean) (bfd_read (src, 1, 1, abfd) != 1);
		  }
		symbolfunc (abfd, symbol, slen, val);
	      }
	    }
	  break;
	case 'S':
	  src++;

	  /* Fetch the type and the length */
	  if (bfd_read (src, 1, 3, abfd) != 3)
	    abort (); /* FIXME */

	  type = *src++;

	  if (!ISHEX (src[0]) || !ISHEX (src[1]))
	    break;

	  bytes_on_line = HEX (src);

	  if (bytes_on_line > MAXCHUNK / 2)
	    break;
	  src += 2;

	  if (bfd_read (src, 1, bytes_on_line * 2, abfd) != bytes_on_line * 2)
	    abort (); /* FIXME */

	  switch (type)
	    {
	    case '0':
	    case '5':
	      /* Prologue - ignore */
	      break;
	    case '3':
	      address = HEX (src);
	      src += 2;
	      bytes_on_line--;

	    case '2':
	      address = HEX (src) | (address << 8);
	      src += 2;
	      bytes_on_line--;
	    case '1':
	      address = HEX (src) | (address << 8);
	      src += 2;
	      address = HEX (src) | (address << 8);
	      src += 2;
	      bytes_on_line -= 2;
	      func (abfd, section, address, src, bytes_on_line);
	      break;

	    case '7':
	      address = HEX (src);
	      src += 2;
	      bytes_on_line--;
	    case '8':
	      address = HEX (src) | (address << 8);
	      src += 2;
	      bytes_on_line--;
	    case '9':
	      address = HEX (src) | (address << 8);
	      src += 2;
	      address = HEX (src) | (address << 8);
	      src += 2;
	      bytes_on_line -= 2;
	      abfd->start_address = address;
	      return;

	    default:
	      return;
	    }
	}
    }

}

static const bfd_target *
object_p (abfd)
     bfd *abfd;
{
  asection *section;
  /* We create one section called .text for all the contents,
     and allocate enough room for the entire file.  */

  section = bfd_make_section (abfd, ".text");
  section->_raw_size = 0;
  section->vma = 0xffffffff;
  low = 0xffffffff;
  high = 0;
  pass_over (abfd, size_srec, size_symbols, section);
  section->_raw_size = high - low;
  section->vma = low;
  section->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC;

  if (abfd->symcount)
    abfd->flags |= HAS_SYMS;
  return abfd->xvec;
}

static const bfd_target *
srec_object_p (abfd)
     bfd *abfd;
{
  char b[4];

  srec_init ();

  if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
      || bfd_read (b, 1, 4, abfd) != 4)
    return NULL;

  if (b[0] != 'S' || !ISHEX (b[1]) || !ISHEX (b[2]) || !ISHEX (b[3]))
    return (const bfd_target *) NULL;

  /* We create one section called .text for all the contents,
     and allocate enough room for the entire file.  */

  return object_p (abfd);
}


static const bfd_target *
symbolsrec_object_p (abfd)
     bfd *abfd;
{
  char b[4];

  srec_init ();

  if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
      || bfd_read (b, 1, 4, abfd) != 4)
    return NULL;

  if (b[0] != '$' || b[1] != '$')
    return (const bfd_target *) NULL;

  return object_p (abfd);
}


static boolean
srec_get_section_contents (abfd, section, location, offset, count)
     bfd *abfd;
     asection *section;
     PTR location;
     file_ptr offset;
     bfd_size_type count;
{
  if (section->used_by_bfd == (PTR) NULL)
    {
      section->used_by_bfd = (PTR) bfd_alloc (abfd, section->_raw_size);
      if (!section->used_by_bfd)
	{
	  bfd_set_error (bfd_error_no_memory);
	  return false;
	}

      pass_over (abfd, fillup, fillup_symbols, section);
    }
  memcpy ((PTR) location,
	  (PTR) ((char *) (section->used_by_bfd) + offset),
	  count);
  return true;
}



boolean
srec_set_arch_mach (abfd, arch, machine)
     bfd *abfd;
     enum bfd_architecture arch;
     unsigned long machine;
{
  return bfd_default_set_arch_mach (abfd, arch, machine);
}


/* we have to save up all the Srecords for a splurge before output,
   also remember   */

static boolean
srec_set_section_contents (abfd, section, location, offset, bytes_to_do)
     bfd *abfd;
     sec_ptr section;
     PTR location;
     file_ptr offset;
     bfd_size_type bytes_to_do;
{
  tdata_type *tdata = abfd->tdata.srec_data;
  register srec_data_list_type *entry;

  entry = ((srec_data_list_type *)
	   bfd_alloc (abfd, sizeof (srec_data_list_type)));
  if (entry == NULL)
    {
      bfd_set_error (bfd_error_no_memory);
      return false;
    }

  if ((section->flags & SEC_ALLOC)
      && (section->flags & SEC_LOAD))
    {
      unsigned char *data = (unsigned char *) bfd_alloc (abfd, bytes_to_do);
      if (data == NULL)
	{
	  bfd_set_error (bfd_error_no_memory);
	  return false;
	}
      memcpy ((PTR) data, location, bytes_to_do);

      if ((section->lma + offset + bytes_to_do) <= 0xffff)
	{

	}
      else if ((section->lma + offset + bytes_to_do) <= 0xffffff
	       && tdata->type < 2)
	{
	  tdata->type = 2;
	}
      else
	{
	  tdata->type = 3;
	}

      entry->data = data;
      entry->where = section->lma + offset;
      entry->size = bytes_to_do;

      /* Sort the records by address.  Optimize for the common case of
         adding a record to the end of the list.  */
      if (tdata->tail != NULL
	  && entry->where >= tdata->tail->where)
	{
	  tdata->tail->next = entry;
	  entry->next = NULL;
	  tdata->tail = entry;
	}
      else
	{
	  register srec_data_list_type **look;

	  for (look = &tdata->head;
	       *look != NULL && (*look)->where < entry->where;
	       look = &(*look)->next)
	    ;
	  entry->next = *look;
	  *look = entry;
	  if (entry->next == NULL)
	    tdata->tail = entry;
	}
    }
  return true;
}

/* Write a record of type, of the supplied number of bytes. The
   supplied bytes and length don't have a checksum. That's worked out
   here
*/
static boolean
srec_write_record (abfd, type, address, data, end)
     bfd *abfd;
     int type;
     bfd_vma address;
     const unsigned char *data;
     const unsigned char *end;
{
  char buffer[MAXCHUNK];

  unsigned int check_sum = 0;
  CONST unsigned char *src = data;
  char *dst = buffer;
  char *length;


  *dst++ = 'S';
  *dst++ = '0' + type;

  length = dst;
  dst += 2;			/* leave room for dst*/

  switch (type)
    {
    case 3:
    case 7:
      TOHEX (dst, (address >> 24), check_sum);
      dst += 2;
    case 8:
    case 2:
      TOHEX (dst, (address >> 16), check_sum);
      dst += 2;
    case 9:
    case 1:
    case 0:
      TOHEX (dst, (address >> 8), check_sum);
      dst += 2;
      TOHEX (dst, (address), check_sum);
      dst += 2;
      break;

    }
  for (src = data; src < end; src++)
    {
      TOHEX (dst, *src, check_sum);
      dst += 2;
    }

  /* Fill in the length */
  TOHEX (length, (dst - length) / 2, check_sum);
  check_sum &= 0xff;
  check_sum = 255 - check_sum;
  TOHEX (dst, check_sum, check_sum);
  dst += 2;

  *dst++ = '\r';
  *dst++ = '\n';
  if (bfd_write ((PTR) buffer, 1, dst - buffer, abfd) != dst - buffer)
    return false;
  return true;
}



static boolean
srec_write_header (abfd)
     bfd *abfd;
{
  unsigned char buffer[MAXCHUNK];
  unsigned char *dst = buffer;
  unsigned int i;

  /* I'll put an arbitary 40 char limit on header size */
  for (i = 0; i < 40 && abfd->filename[i]; i++)
    {
      *dst++ = abfd->filename[i];
    }
  return srec_write_record (abfd, 0, 0, buffer, dst);
}

static boolean
srec_write_section (abfd, tdata, list)
     bfd *abfd;
     tdata_type *tdata;
     srec_data_list_type *list;
{
  unsigned int bytes_written = 0;
  unsigned char *location = list->data;

  while (bytes_written < list->size)
    {
      bfd_vma address;

      unsigned int bytes_this_chunk = list->size - bytes_written;

      if (bytes_this_chunk > CHUNK)
	{
	  bytes_this_chunk = CHUNK;
	}

      address = list->where + bytes_written;

      if (! srec_write_record (abfd,
			       tdata->type,
			       address,
			       location,
			       location + bytes_this_chunk))
	return false;

      bytes_written += bytes_this_chunk;
      location += bytes_this_chunk;
    }

  return true;
}

static boolean
srec_write_terminator (abfd, tdata)
     bfd *abfd;
     tdata_type *tdata;
{
  unsigned char buffer[2];

  return srec_write_record (abfd, 10 - tdata->type,
			    abfd->start_address, buffer, buffer);
}



static boolean
srec_write_symbols (abfd)
     bfd *abfd;
{
  char buffer[MAXCHUNK];
  /* Dump out the symbols of a bfd */
  int i;
  int count = bfd_get_symcount (abfd);

  if (count)
    {
      size_t len;
      asymbol **table = bfd_get_outsymbols (abfd);
      sprintf (buffer, "$$ %s\r\n", abfd->filename);

      len = strlen (buffer);
      if (bfd_write (buffer, len, 1, abfd) != len)
	return false;

      for (i = 0; i < count; i++)
	{
	  asymbol *s = table[i];
#if 0
	  int len = strlen (s->name);

	  /* If this symbol has a .[ocs] in it, it's probably a file name
	 and we'll output that as the module name */

	  if (len > 3 && s->name[len - 2] == '.')
	    {
	      int l;
	      sprintf (buffer, "$$ %s\r\n", s->name);
	      l = strlen (buffer);
	      if (bfd_write (buffer, l, 1, abfd) != l)
		return false;
	    }
	  else
#endif
	    if (s->flags & (BSF_GLOBAL | BSF_LOCAL)
		&& (s->flags & BSF_DEBUGGING) == 0
		&& s->name[0] != '.'
		&& s->name[0] != 't')
	    {
	      /* Just dump out non debug symbols */

	      int l;
	      char buf2[40], *p;

	      sprintf_vma (buf2,
			   s->value + s->section->output_section->lma
			   + s->section->output_offset);
	      p = buf2;
	      while (p[0] == '0' && p[1] != 0)
		p++;
	      sprintf (buffer, "  %s $%s\r\n", s->name, p);
	      l = strlen (buffer);
	      if (bfd_write (buffer, l, 1, abfd) != l)
		return false;
	    }
	}
      sprintf (buffer, "$$ \r\n");
      len = strlen (buffer);
      if (bfd_write (buffer, len, 1, abfd) != len)
	return false;
    }

  return true;
}

static boolean
internal_srec_write_object_contents (abfd, symbols)
     bfd *abfd;
     int symbols;
{
  tdata_type *tdata = abfd->tdata.srec_data;
  srec_data_list_type *list;

  if (symbols)
    {
      if (! srec_write_symbols (abfd))
	return false;
    }

  if (! srec_write_header (abfd))
    return false;

  /* Now wander though all the sections provided and output them */
  list = tdata->head;

  while (list != (srec_data_list_type *) NULL)
    {
      if (! srec_write_section (abfd, tdata, list))
	return false;
      list = list->next;
    }
  return srec_write_terminator (abfd, tdata);
}

static boolean
srec_write_object_contents (abfd)
     bfd *abfd;
{
  return internal_srec_write_object_contents (abfd, 0);
}

static boolean
symbolsrec_write_object_contents (abfd)
     bfd *abfd;
{
  return internal_srec_write_object_contents (abfd, 1);
}

/*ARGSUSED*/
static int
srec_sizeof_headers (abfd, exec)
     bfd *abfd;
     boolean exec;
{
  return 0;
}

static asymbol *
srec_make_empty_symbol (abfd)
     bfd *abfd;
{
  asymbol *new = (asymbol *) bfd_zalloc (abfd, sizeof (asymbol));
  if (new)
    new->the_bfd = abfd;
  return new;
}

static long
srec_get_symtab_upper_bound (abfd)
     bfd *abfd;
{
  /* Read in all the info */
  if (! srec_get_section_contents (abfd, abfd->sections, 0, 0, 0))
    return -1;
  return (bfd_get_symcount (abfd) + 1) * (sizeof (asymbol *));
}

static long
srec_get_symtab (abfd, alocation)
     bfd *abfd;
     asymbol **alocation;
{
  int lim = abfd->symcount;
  int i;
  for (i = 0; i < lim; i++)
    {
      alocation[i] = abfd->tdata.srec_data->symbols + i;
    }
  alocation[i] = 0;
  return lim;
}

/*ARGSUSED*/
void
srec_get_symbol_info (ignore_abfd, symbol, ret)
     bfd *ignore_abfd;
     asymbol *symbol;
     symbol_info *ret;
{
  bfd_symbol_info (symbol, ret);
}

/*ARGSUSED*/
void
srec_print_symbol (ignore_abfd, afile, symbol, how)
     bfd *ignore_abfd;
     PTR afile;
     asymbol *symbol;
     bfd_print_symbol_type how;
{
  FILE *file = (FILE *) afile;
  switch (how)
    {
    case bfd_print_symbol_name:
      fprintf (file, "%s", symbol->name);
      break;
    default:
      bfd_print_symbol_vandf ((PTR) file, symbol);
      fprintf (file, " %-5s %s",
	       symbol->section->name,
	       symbol->name);

    }
}

#define	srec_close_and_cleanup _bfd_generic_close_and_cleanup
#define srec_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
#define srec_new_section_hook _bfd_generic_new_section_hook

#define srec_bfd_is_local_label bfd_generic_is_local_label
#define srec_get_lineno _bfd_nosymbols_get_lineno
#define srec_find_nearest_line _bfd_nosymbols_find_nearest_line
#define srec_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol

#define srec_bfd_get_relocated_section_contents \
  bfd_generic_get_relocated_section_contents
#define srec_bfd_relax_section bfd_generic_relax_section
#define srec_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
#define srec_bfd_link_add_symbols _bfd_generic_link_add_symbols
#define srec_bfd_final_link _bfd_generic_final_link

const bfd_target srec_vec =
{
  "srec",			/* name */
  bfd_target_srec_flavour,
  true,				/* target byte order */
  true,				/* target headers byte order */
  (HAS_RELOC | EXEC_P |		/* object flags */
   HAS_LINENO | HAS_DEBUG |
   HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
  (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
   | SEC_ALLOC | SEC_LOAD | SEC_RELOC),	/* section flags */
  0,				/* leading underscore */
  ' ',				/* ar_pad_char */
  16,				/* ar_max_namelen */
  1,				/* minimum alignment */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* data */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* hdrs */

  {
    _bfd_dummy_target,
    srec_object_p,		/* bfd_check_format */
    _bfd_dummy_target,
    _bfd_dummy_target,
  },
  {
    bfd_false,
    srec_mkobject,
    _bfd_generic_mkarchive,
    bfd_false,
  },
  {				/* bfd_write_contents */
    bfd_false,
    srec_write_object_contents,
    _bfd_write_archive_contents,
    bfd_false,
  },

  BFD_JUMP_TABLE_GENERIC (srec),
  BFD_JUMP_TABLE_COPY (_bfd_generic),
  BFD_JUMP_TABLE_CORE (_bfd_nocore),
  BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
  BFD_JUMP_TABLE_SYMBOLS (srec),
  BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
  BFD_JUMP_TABLE_WRITE (srec),
  BFD_JUMP_TABLE_LINK (srec),
  BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),

  (PTR) 0
};



const bfd_target symbolsrec_vec =
{
  "symbolsrec",			/* name */
  bfd_target_srec_flavour,
  true,				/* target byte order */
  true,				/* target headers byte order */
  (HAS_RELOC | EXEC_P |		/* object flags */
   HAS_LINENO | HAS_DEBUG |
   HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
  (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
   | SEC_ALLOC | SEC_LOAD | SEC_RELOC),	/* section flags */
  0,				/* leading underscore */
  ' ',				/* ar_pad_char */
  16,				/* ar_max_namelen */
  1,				/* minimum alignment */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* data */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* hdrs */

  {
    _bfd_dummy_target,
    symbolsrec_object_p,	/* bfd_check_format */
    _bfd_dummy_target,
    _bfd_dummy_target,
  },
  {
    bfd_false,
    srec_mkobject,
    _bfd_generic_mkarchive,
    bfd_false,
  },
  {				/* bfd_write_contents */
    bfd_false,
    symbolsrec_write_object_contents,
    _bfd_write_archive_contents,
    bfd_false,
  },

  BFD_JUMP_TABLE_GENERIC (srec),
  BFD_JUMP_TABLE_COPY (_bfd_generic),
  BFD_JUMP_TABLE_CORE (_bfd_nocore),
  BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
  BFD_JUMP_TABLE_SYMBOLS (srec),
  BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
  BFD_JUMP_TABLE_WRITE (srec),
  BFD_JUMP_TABLE_LINK (srec),
  BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),

  (PTR) 0
};