/* xSYM symbol-file support for BFD.
   Copyright (C) 1999-2024 Free Software Foundation, Inc.

   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 3 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., 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */

/* xSYM is the debugging format used by CodeWarrior on Mac OS classic.  */

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

#define bfd_sym_close_and_cleanup		    _bfd_generic_close_and_cleanup
#define bfd_sym_bfd_free_cached_info		    _bfd_generic_bfd_free_cached_info
#define bfd_sym_new_section_hook		    _bfd_generic_new_section_hook
#define bfd_sym_bfd_is_local_label_name		    bfd_generic_is_local_label_name
#define bfd_sym_bfd_is_target_special_symbol	    _bfd_bool_bfd_asymbol_false
#define bfd_sym_get_lineno			    _bfd_nosymbols_get_lineno
#define bfd_sym_find_nearest_line		    _bfd_nosymbols_find_nearest_line
#define bfd_sym_find_nearest_line_with_alt	    _bfd_nosymbols_find_nearest_line_with_alt
#define bfd_sym_find_line			    _bfd_nosymbols_find_line
#define bfd_sym_find_inliner_info		    _bfd_nosymbols_find_inliner_info
#define bfd_sym_get_symbol_version_string	    _bfd_nosymbols_get_symbol_version_string
#define bfd_sym_bfd_make_debug_symbol		    _bfd_nosymbols_bfd_make_debug_symbol
#define bfd_sym_read_minisymbols		    _bfd_generic_read_minisymbols
#define bfd_sym_minisymbol_to_symbol		    _bfd_generic_minisymbol_to_symbol
#define bfd_sym_set_arch_mach			    _bfd_generic_set_arch_mach
#define bfd_sym_get_section_contents		    _bfd_generic_get_section_contents
#define bfd_sym_set_section_contents		    _bfd_generic_set_section_contents
#define bfd_sym_bfd_get_relocated_section_contents  bfd_generic_get_relocated_section_contents
#define bfd_sym_bfd_relax_section		    bfd_generic_relax_section
#define bfd_sym_bfd_gc_sections			    bfd_generic_gc_sections
#define bfd_sym_bfd_lookup_section_flags	    bfd_generic_lookup_section_flags
#define bfd_sym_bfd_merge_sections		    bfd_generic_merge_sections
#define bfd_sym_bfd_is_group_section		    bfd_generic_is_group_section
#define bfd_sym_bfd_group_name			    bfd_generic_group_name
#define bfd_sym_bfd_discard_group		    bfd_generic_discard_group
#define bfd_sym_section_already_linked		    _bfd_generic_section_already_linked
#define bfd_sym_bfd_define_common_symbol	    bfd_generic_define_common_symbol
#define bfd_sym_bfd_link_hide_symbol		    _bfd_generic_link_hide_symbol
#define bfd_sym_bfd_define_start_stop		    bfd_generic_define_start_stop
#define bfd_sym_bfd_link_hash_table_create	    _bfd_generic_link_hash_table_create
#define bfd_sym_bfd_link_add_symbols		    _bfd_generic_link_add_symbols
#define bfd_sym_bfd_link_just_syms		    _bfd_generic_link_just_syms
#define bfd_sym_bfd_copy_link_hash_symbol_type \
  _bfd_generic_copy_link_hash_symbol_type
#define bfd_sym_bfd_final_link			    _bfd_generic_final_link
#define bfd_sym_bfd_link_split_section		    _bfd_generic_link_split_section
#define bfd_sym_bfd_link_check_relocs		    _bfd_generic_link_check_relocs

extern const bfd_target sym_vec;

static int
pstrcmp (const char *as, const char *bs)
{
  const unsigned char *a = (const unsigned char *) as;
  const unsigned char *b = (const unsigned char *) bs;
  unsigned char clen;
  int ret;

  clen = (a[0] > b[0]) ? b[0] : a[0];
  ret = memcmp (a + 1, b + 1, clen);
  if (ret != 0)
    return ret;

  if (a[0] == b[0])
    return 0;
  else if (a[0] < b[0])
    return -1;
  else
    return 1;
}

static unsigned long
compute_offset (unsigned long first_page,
		unsigned long page_size,
		unsigned long entry_size,
		unsigned long sym_index)
{
  unsigned long entries_per_page = page_size / entry_size;
  unsigned long page_number = first_page + (sym_index / entries_per_page);
  unsigned long page_offset = (sym_index % entries_per_page) * entry_size;

  return (page_number * page_size) + page_offset;
}

bool
bfd_sym_mkobject (bfd *abfd ATTRIBUTE_UNUSED)
{
  return 1;
}

void
bfd_sym_print_symbol (bfd *abfd ATTRIBUTE_UNUSED,
		      void * afile ATTRIBUTE_UNUSED,
		      asymbol *symbol ATTRIBUTE_UNUSED,
		      bfd_print_symbol_type how ATTRIBUTE_UNUSED)
{
  return;
}

bool
bfd_sym_valid (bfd *abfd)
{
  if (abfd == NULL || abfd->xvec == NULL)
    return 0;

  return abfd->xvec == &sym_vec;
}

unsigned char *
bfd_sym_read_name_table (bfd *abfd, bfd_sym_header_block *dshb)
{
  size_t table_size = dshb->dshb_nte.dti_page_count * dshb->dshb_page_size;
  size_t table_offset = dshb->dshb_nte.dti_first_page * dshb->dshb_page_size;

  if (bfd_seek (abfd, table_offset, SEEK_SET) != 0)
    return NULL;
  return _bfd_alloc_and_read (abfd, table_size, table_size);
}

void
bfd_sym_parse_file_reference_v32 (unsigned char *buf,
				  size_t len,
				  bfd_sym_file_reference *entry)
{
  BFD_ASSERT (len == 6);

  entry->fref_frte_index = bfd_getb16 (buf);
  entry->fref_offset = bfd_getb32 (buf + 2);
}

void
bfd_sym_parse_disk_table_v32 (unsigned char *buf,
			      size_t len,
			      bfd_sym_table_info *table)
{
  BFD_ASSERT (len == 8);

  table->dti_first_page = bfd_getb16 (buf);
  table->dti_page_count = bfd_getb16 (buf + 2);
  table->dti_object_count = bfd_getb32 (buf + 4);
}

void
bfd_sym_parse_header_v32 (unsigned char *buf,
			  size_t len,
			  bfd_sym_header_block *header)
{
  BFD_ASSERT (len == 154);

  memcpy (header->dshb_id, buf, 32);
  header->dshb_page_size = bfd_getb16 (buf + 32);
  header->dshb_hash_page = bfd_getb16 (buf + 34);
  header->dshb_root_mte = bfd_getb16 (buf + 36);
  header->dshb_mod_date = bfd_getb32 (buf + 38);

  bfd_sym_parse_disk_table_v32 (buf + 42, 8, &header->dshb_frte);
  bfd_sym_parse_disk_table_v32 (buf + 50, 8, &header->dshb_rte);
  bfd_sym_parse_disk_table_v32 (buf + 58, 8, &header->dshb_mte);
  bfd_sym_parse_disk_table_v32 (buf + 66, 8, &header->dshb_cmte);
  bfd_sym_parse_disk_table_v32 (buf + 74, 8, &header->dshb_cvte);
  bfd_sym_parse_disk_table_v32 (buf + 82, 8, &header->dshb_csnte);
  bfd_sym_parse_disk_table_v32 (buf + 90, 8, &header->dshb_clte);
  bfd_sym_parse_disk_table_v32 (buf + 98, 8, &header->dshb_ctte);
  bfd_sym_parse_disk_table_v32 (buf + 106, 8, &header->dshb_tte);
  bfd_sym_parse_disk_table_v32 (buf + 114, 8, &header->dshb_nte);
  bfd_sym_parse_disk_table_v32 (buf + 122, 8, &header->dshb_tinfo);
  bfd_sym_parse_disk_table_v32 (buf + 130, 8, &header->dshb_fite);
  bfd_sym_parse_disk_table_v32 (buf + 138, 8, &header->dshb_const);

  memcpy (&header->dshb_file_creator, buf + 146, 4);
  memcpy (&header->dshb_file_type, buf + 150, 4);
}

int
bfd_sym_read_header_v32 (bfd *abfd, bfd_sym_header_block *header)
{
  unsigned char buf[154];
  long ret;

  ret = bfd_read (buf, 154, abfd);
  if (ret != 154)
    return -1;

  bfd_sym_parse_header_v32 (buf, 154, header);

  return 0;
}

int
bfd_sym_read_header_v34 (bfd *abfd ATTRIBUTE_UNUSED,
			 bfd_sym_header_block *header ATTRIBUTE_UNUSED)
{
  abort ();
}

int
bfd_sym_read_header (bfd *abfd,
		     bfd_sym_header_block *header,
		     bfd_sym_version version)
{
  switch (version)
    {
    case BFD_SYM_VERSION_3_5:
    case BFD_SYM_VERSION_3_4:
      return bfd_sym_read_header_v34 (abfd, header);
    case BFD_SYM_VERSION_3_3:
    case BFD_SYM_VERSION_3_2:
      return bfd_sym_read_header_v32 (abfd, header);
    case BFD_SYM_VERSION_3_1:
    default:
      return 0;
    }
}

int
bfd_sym_read_version (bfd *abfd, bfd_sym_version *version)
{
  char version_string[32];
  long ret;

  ret = bfd_read (version_string, sizeof (version_string), abfd);
  if (ret != sizeof (version_string))
    return -1;

  if (pstrcmp (version_string, BFD_SYM_VERSION_STR_3_1) == 0)
    *version = BFD_SYM_VERSION_3_1;
  else if (pstrcmp (version_string, BFD_SYM_VERSION_STR_3_2) == 0)
    *version = BFD_SYM_VERSION_3_2;
  else if (pstrcmp (version_string, BFD_SYM_VERSION_STR_3_3) == 0)
    *version = BFD_SYM_VERSION_3_3;
  else if (pstrcmp (version_string, BFD_SYM_VERSION_STR_3_4) == 0)
    *version = BFD_SYM_VERSION_3_4;
  else if (pstrcmp (version_string, BFD_SYM_VERSION_STR_3_5) == 0)
    *version = BFD_SYM_VERSION_3_5;
  else
    return -1;

  return 0;
}

void
bfd_sym_display_table_summary (FILE *f,
			       bfd_sym_table_info *dti,
			       const char *name)
{
  fprintf (f, "%-6s %13ld %13ld %13ld\n",
	   name,
	   dti->dti_first_page,
	   dti->dti_page_count,
	   dti->dti_object_count);
}

void
bfd_sym_display_header (FILE *f, bfd_sym_header_block *dshb)
{
  fprintf (f, "            Version: %.*s\n", dshb->dshb_id[0], dshb->dshb_id + 1);
  fprintf (f, "          Page Size: 0x%x\n", dshb->dshb_page_size);
  fprintf (f, "          Hash Page: %lu\n", dshb->dshb_hash_page);
  fprintf (f, "           Root MTE: %lu\n", dshb->dshb_root_mte);
  fprintf (f, "  Modification Date: ");
  fprintf (f, "[unimplemented]");
  fprintf (f, " (0x%lx)\n", dshb->dshb_mod_date);

  fprintf (f, "       File Creator:  %.4s  Type: %.4s\n\n",
	   dshb->dshb_file_creator, dshb->dshb_file_type);

  fprintf (f, "Table Name   First Page    Page Count   Object Count\n");
  fprintf (f, "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n");

  bfd_sym_display_table_summary (f, &dshb->dshb_nte, "NTE");
  bfd_sym_display_table_summary (f, &dshb->dshb_rte, "RTE");
  bfd_sym_display_table_summary (f, &dshb->dshb_mte, "MTE");
  bfd_sym_display_table_summary (f, &dshb->dshb_frte, "FRTE");
  bfd_sym_display_table_summary (f, &dshb->dshb_cmte, "CMTE");
  bfd_sym_display_table_summary (f, &dshb->dshb_cvte, "CVTE");
  bfd_sym_display_table_summary (f, &dshb->dshb_csnte, "CSNTE");
  bfd_sym_display_table_summary (f, &dshb->dshb_clte, "CLTE");
  bfd_sym_display_table_summary (f, &dshb->dshb_ctte, "CTTE");
  bfd_sym_display_table_summary (f, &dshb->dshb_tte, "TTE");
  bfd_sym_display_table_summary (f, &dshb->dshb_tinfo, "TINFO");
  bfd_sym_display_table_summary (f, &dshb->dshb_fite, "FITE");
  bfd_sym_display_table_summary (f, &dshb->dshb_const, "CONST");

  fprintf (f, "\n");
}

void
bfd_sym_parse_resources_table_entry_v32 (unsigned char *buf,
					 size_t len,
					 bfd_sym_resources_table_entry *entry)
{
  BFD_ASSERT (len == 18);

  memcpy (&entry->rte_res_type, buf, 4);
  entry->rte_res_number = bfd_getb16 (buf + 4);
  entry->rte_nte_index = bfd_getb32 (buf + 6);
  entry->rte_mte_first = bfd_getb16 (buf + 10);
  entry->rte_mte_last = bfd_getb16 (buf + 12);
  entry->rte_res_size = bfd_getb32 (buf + 14);
}

void
bfd_sym_parse_modules_table_entry_v33 (unsigned char *buf,
				       size_t len,
				       bfd_sym_modules_table_entry *entry)
{
  BFD_ASSERT (len == 46);

  entry->mte_rte_index = bfd_getb16 (buf);
  entry->mte_res_offset = bfd_getb32 (buf + 2);
  entry->mte_size = bfd_getb32 (buf + 6);
  entry->mte_kind = buf[10];
  entry->mte_scope = buf[11];
  entry->mte_parent = bfd_getb16 (buf + 12);
  bfd_sym_parse_file_reference_v32 (buf + 14, 6, &entry->mte_imp_fref);
  entry->mte_imp_end = bfd_getb32 (buf + 20);
  entry->mte_nte_index = bfd_getb32 (buf + 24);
  entry->mte_cmte_index = bfd_getb16 (buf + 28);
  entry->mte_cvte_index = bfd_getb32 (buf + 30);
  entry->mte_clte_index = bfd_getb16 (buf + 34);
  entry->mte_ctte_index = bfd_getb16 (buf + 36);
  entry->mte_csnte_idx_1 = bfd_getb32 (buf + 38);
  entry->mte_csnte_idx_2 = bfd_getb32 (buf + 42);
}

void
bfd_sym_parse_file_references_table_entry_v32 (unsigned char *buf,
					       size_t len,
					       bfd_sym_file_references_table_entry *entry)
{
  unsigned int type;

  BFD_ASSERT (len == 10);

  memset (entry, 0, sizeof (bfd_sym_file_references_table_entry));
  type = bfd_getb16 (buf);

  switch (type)
    {
    case BFD_SYM_END_OF_LIST_3_2:
      entry->generic.type = BFD_SYM_END_OF_LIST;
      break;

    case BFD_SYM_FILE_NAME_INDEX_3_2:
      entry->filename.type = BFD_SYM_FILE_NAME_INDEX;
      entry->filename.nte_index = bfd_getb32 (buf + 2);
      entry->filename.mod_date = bfd_getb32 (buf + 6);
      break;

    default:
      entry->entry.mte_index = type;
      entry->entry.file_offset = bfd_getb32 (buf + 2);
    }
}

void
bfd_sym_parse_contained_modules_table_entry_v32 (unsigned char *buf,
						 size_t len,
						 bfd_sym_contained_modules_table_entry *entry)
{
  unsigned int type;

  BFD_ASSERT (len == 6);

  memset (entry, 0, sizeof (bfd_sym_contained_modules_table_entry));
  type = bfd_getb16 (buf);

  switch (type)
    {
    case BFD_SYM_END_OF_LIST_3_2:
      entry->generic.type = BFD_SYM_END_OF_LIST;
      break;

    default:
      entry->entry.mte_index = type;
      entry->entry.nte_index = bfd_getb32 (buf + 2);
      break;
    }
}

void
bfd_sym_parse_contained_variables_table_entry_v32 (unsigned char *buf,
						   size_t len,
						   bfd_sym_contained_variables_table_entry *entry)
{
  unsigned int type;

  BFD_ASSERT (len == 26);

  memset (entry, 0, sizeof (bfd_sym_contained_variables_table_entry));
  type = bfd_getb16 (buf);

  switch (type)
    {
    case BFD_SYM_END_OF_LIST_3_2:
      entry->generic.type = BFD_SYM_END_OF_LIST;
      break;

    case BFD_SYM_SOURCE_FILE_CHANGE_3_2:
      entry->file.type = BFD_SYM_SOURCE_FILE_CHANGE;
      bfd_sym_parse_file_reference_v32 (buf + 2, 6, &entry->file.fref);
      break;

    default:
      entry->entry.tte_index = type;
      entry->entry.nte_index = bfd_getb32 (buf + 2);
      entry->entry.file_delta = bfd_getb16 (buf + 6);
      entry->entry.scope = buf[8];
      entry->entry.la_size = buf[9];

      if (entry->entry.la_size == BFD_SYM_CVTE_SCA)
	{
	  entry->entry.address.scstruct.sca_kind = buf[10];
	  entry->entry.address.scstruct.sca_class = buf[11];
	  entry->entry.address.scstruct.sca_offset = bfd_getb32 (buf + 12);
	}
      else if (entry->entry.la_size <= BFD_SYM_CVTE_SCA)
	{
#if BFD_SYM_CVTE_SCA > 0
	  memcpy (&entry->entry.address.lastruct.la, buf + 10,
		  BFD_SYM_CVTE_SCA);
#endif
	  entry->entry.address.lastruct.la_kind = buf[23];
	}
      else if (entry->entry.la_size == BFD_SYM_CVTE_BIG_LA)
	{
	  entry->entry.address.biglastruct.big_la = bfd_getb32 (buf + 10);
	  entry->entry.address.biglastruct.big_la_kind = buf[12];
	}
    }
}

void
bfd_sym_parse_contained_statements_table_entry_v32 (unsigned char *buf,
						    size_t len,
						    bfd_sym_contained_statements_table_entry *entry)
{
  unsigned int type;

  BFD_ASSERT (len == 8);

  memset (entry, 0, sizeof (bfd_sym_contained_statements_table_entry));
  type = bfd_getb16 (buf);

  switch (type)
    {
    case BFD_SYM_END_OF_LIST_3_2:
      entry->generic.type = BFD_SYM_END_OF_LIST;
      break;

    case BFD_SYM_SOURCE_FILE_CHANGE_3_2:
      entry->file.type = BFD_SYM_SOURCE_FILE_CHANGE;
      bfd_sym_parse_file_reference_v32 (buf + 2, 6, &entry->file.fref);
      break;

    default:
      entry->entry.mte_index = type;
      entry->entry.mte_offset = bfd_getb16 (buf + 2);
      entry->entry.file_delta = bfd_getb32 (buf + 4);
      break;
    }
}

void
bfd_sym_parse_contained_labels_table_entry_v32 (unsigned char *buf,
						size_t len,
						bfd_sym_contained_labels_table_entry *entry)
{
  unsigned int type;

  BFD_ASSERT (len == 12);

  memset (entry, 0, sizeof (bfd_sym_contained_labels_table_entry));
  type = bfd_getb16 (buf);

  switch (type)
    {
    case BFD_SYM_END_OF_LIST_3_2:
      entry->generic.type = BFD_SYM_END_OF_LIST;
      break;

    case BFD_SYM_SOURCE_FILE_CHANGE_3_2:
      entry->file.type = BFD_SYM_SOURCE_FILE_CHANGE;
      bfd_sym_parse_file_reference_v32 (buf + 2, 6, &entry->file.fref);
      break;

    default:
      entry->entry.mte_index = type;
      entry->entry.mte_offset = bfd_getb16 (buf + 2);
      entry->entry.nte_index = bfd_getb32 (buf + 4);
      entry->entry.file_delta = bfd_getb16 (buf + 8);
      entry->entry.scope = bfd_getb16 (buf + 10);
      break;
    }
}

void
bfd_sym_parse_type_table_entry_v32 (unsigned char *buf,
				    size_t len,
				    bfd_sym_type_table_entry *entry)
{
  BFD_ASSERT (len == 4);

  *entry = bfd_getb32 (buf);
}

int
bfd_sym_fetch_resources_table_entry (bfd *abfd,
				     bfd_sym_resources_table_entry *entry,
				     unsigned long sym_index)
{
  void (*parser) (unsigned char *, size_t, bfd_sym_resources_table_entry *);
  unsigned long offset;
  unsigned long entry_size;
  unsigned char buf[18];
  bfd_sym_data_struct *sdata = NULL;

  parser = NULL;
  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  if (sym_index == 0)
    return -1;

  switch (sdata->version)
    {
    case BFD_SYM_VERSION_3_5:
    case BFD_SYM_VERSION_3_4:
      return -1;

    case BFD_SYM_VERSION_3_3:
    case BFD_SYM_VERSION_3_2:
      entry_size = 18;
      parser = bfd_sym_parse_resources_table_entry_v32;
      break;

    case BFD_SYM_VERSION_3_1:
    default:
      return -1;
    }
  if (parser == NULL)
    return -1;

  offset = compute_offset (sdata->header.dshb_rte.dti_first_page,
			   sdata->header.dshb_page_size,
			   entry_size, sym_index);

  if (bfd_seek (abfd, offset, SEEK_SET) < 0)
    return -1;
  if (bfd_read (buf, entry_size, abfd) != entry_size)
    return -1;

  (*parser) (buf, entry_size, entry);

  return 0;
}

int
bfd_sym_fetch_modules_table_entry (bfd *abfd,
				   bfd_sym_modules_table_entry *entry,
				   unsigned long sym_index)
{
  void (*parser) (unsigned char *, size_t, bfd_sym_modules_table_entry *);
  unsigned long offset;
  unsigned long entry_size;
  unsigned char buf[46];
  bfd_sym_data_struct *sdata = NULL;

  parser = NULL;
  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  if (sym_index == 0)
    return -1;

  switch (sdata->version)
    {
    case BFD_SYM_VERSION_3_5:
    case BFD_SYM_VERSION_3_4:
      return -1;

    case BFD_SYM_VERSION_3_3:
      entry_size = 46;
      parser = bfd_sym_parse_modules_table_entry_v33;
      break;

    case BFD_SYM_VERSION_3_2:
    case BFD_SYM_VERSION_3_1:
    default:
      return -1;
    }
  if (parser == NULL)
    return -1;

  offset = compute_offset (sdata->header.dshb_mte.dti_first_page,
			   sdata->header.dshb_page_size,
			   entry_size, sym_index);

  if (bfd_seek (abfd, offset, SEEK_SET) < 0)
    return -1;
  if (bfd_read (buf, entry_size, abfd) != entry_size)
    return -1;

  (*parser) (buf, entry_size, entry);

  return 0;
}

int
bfd_sym_fetch_file_references_table_entry (bfd *abfd,
					   bfd_sym_file_references_table_entry *entry,
					   unsigned long sym_index)
{
  void (*parser) (unsigned char *, size_t, bfd_sym_file_references_table_entry *);
  unsigned long offset;
  unsigned long entry_size = 0;
  unsigned char buf[8];
  bfd_sym_data_struct *sdata = NULL;

  parser = NULL;
  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  if (sym_index == 0)
    return -1;

  switch (sdata->version)
    {
    case BFD_SYM_VERSION_3_3:
    case BFD_SYM_VERSION_3_2:
      entry_size = 10;
      parser = bfd_sym_parse_file_references_table_entry_v32;
      break;

    case BFD_SYM_VERSION_3_5:
    case BFD_SYM_VERSION_3_4:
    case BFD_SYM_VERSION_3_1:
    default:
      break;
    }

  if (parser == NULL)
    return -1;

  offset = compute_offset (sdata->header.dshb_frte.dti_first_page,
			   sdata->header.dshb_page_size,
			   entry_size, sym_index);

  if (bfd_seek (abfd, offset, SEEK_SET) < 0)
    return -1;
  if (bfd_read (buf, entry_size, abfd) != entry_size)
    return -1;

  (*parser) (buf, entry_size, entry);

  return 0;
}

int
bfd_sym_fetch_contained_modules_table_entry (bfd *abfd,
					     bfd_sym_contained_modules_table_entry *entry,
					     unsigned long sym_index)
{
  void (*parser) (unsigned char *, size_t, bfd_sym_contained_modules_table_entry *);
  unsigned long offset;
  unsigned long entry_size = 0;
  unsigned char buf[6];
  bfd_sym_data_struct *sdata = NULL;

  parser = NULL;
  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  if (sym_index == 0)
    return -1;

  switch (sdata->version)
    {
    case BFD_SYM_VERSION_3_3:
    case BFD_SYM_VERSION_3_2:
      entry_size = 6;
      parser = bfd_sym_parse_contained_modules_table_entry_v32;
      break;

    case BFD_SYM_VERSION_3_5:
    case BFD_SYM_VERSION_3_4:
    case BFD_SYM_VERSION_3_1:
    default:
      break;
    }

  if (parser == NULL)
    return -1;

  offset = compute_offset (sdata->header.dshb_cmte.dti_first_page,
			   sdata->header.dshb_page_size,
			   entry_size, sym_index);

  if (bfd_seek (abfd, offset, SEEK_SET) < 0)
    return -1;
  if (bfd_read (buf, entry_size, abfd) != entry_size)
    return -1;

  (*parser) (buf, entry_size, entry);

  return 0;
}

int
bfd_sym_fetch_contained_variables_table_entry (bfd *abfd,
					       bfd_sym_contained_variables_table_entry *entry,
					       unsigned long sym_index)
{
  void (*parser) (unsigned char *, size_t, bfd_sym_contained_variables_table_entry *);
  unsigned long offset;
  unsigned long entry_size = 0;
  unsigned char buf[26];
  bfd_sym_data_struct *sdata = NULL;

  parser = NULL;
  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  if (sym_index == 0)
    return -1;

  switch (sdata->version)
    {
    case BFD_SYM_VERSION_3_3:
    case BFD_SYM_VERSION_3_2:
      entry_size = 26;
      parser = bfd_sym_parse_contained_variables_table_entry_v32;
      break;

    case BFD_SYM_VERSION_3_5:
    case BFD_SYM_VERSION_3_4:
    case BFD_SYM_VERSION_3_1:
    default:
      break;
    }

  if (parser == NULL)
    return -1;

  offset = compute_offset (sdata->header.dshb_cvte.dti_first_page,
			   sdata->header.dshb_page_size,
			   entry_size, sym_index);

  if (bfd_seek (abfd, offset, SEEK_SET) < 0)
    return -1;
  if (bfd_read (buf, entry_size, abfd) != entry_size)
    return -1;

  (*parser) (buf, entry_size, entry);

  return 0;
}

int
bfd_sym_fetch_contained_statements_table_entry (bfd *abfd,
						bfd_sym_contained_statements_table_entry *entry,
						unsigned long sym_index)
{
  void (*parser) (unsigned char *, size_t, bfd_sym_contained_statements_table_entry *);
  unsigned long offset;
  unsigned long entry_size = 0;
  unsigned char buf[8];
  bfd_sym_data_struct *sdata = NULL;

  parser = NULL;
  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  if (sym_index == 0)
    return -1;

  switch (sdata->version)
    {
    case BFD_SYM_VERSION_3_3:
    case BFD_SYM_VERSION_3_2:
      entry_size = 8;
      parser = bfd_sym_parse_contained_statements_table_entry_v32;
      break;

    case BFD_SYM_VERSION_3_5:
    case BFD_SYM_VERSION_3_4:
    case BFD_SYM_VERSION_3_1:
    default:
      break;
    }

  if (parser == NULL)
    return -1;

  offset = compute_offset (sdata->header.dshb_csnte.dti_first_page,
			   sdata->header.dshb_page_size,
			   entry_size, sym_index);

  if (bfd_seek (abfd, offset, SEEK_SET) < 0)
    return -1;
  if (bfd_read (buf, entry_size, abfd) != entry_size)
    return -1;

  (*parser) (buf, entry_size, entry);

  return 0;
}

int
bfd_sym_fetch_contained_labels_table_entry (bfd *abfd,
					    bfd_sym_contained_labels_table_entry *entry,
					    unsigned long sym_index)
{
  void (*parser) (unsigned char *, size_t, bfd_sym_contained_labels_table_entry *);
  unsigned long offset;
  unsigned long entry_size = 0;
  unsigned char buf[12];
  bfd_sym_data_struct *sdata = NULL;

  parser = NULL;
  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  if (sym_index == 0)
    return -1;

  switch (sdata->version)
    {
    case BFD_SYM_VERSION_3_3:
    case BFD_SYM_VERSION_3_2:
      entry_size = 12;
      parser = bfd_sym_parse_contained_labels_table_entry_v32;
      break;

    case BFD_SYM_VERSION_3_5:
    case BFD_SYM_VERSION_3_4:
    case BFD_SYM_VERSION_3_1:
    default:
      break;
    }

  if (parser == NULL)
    return -1;

  offset = compute_offset (sdata->header.dshb_clte.dti_first_page,
			   sdata->header.dshb_page_size,
			   entry_size, sym_index);

  if (bfd_seek (abfd, offset, SEEK_SET) < 0)
    return -1;
  if (bfd_read (buf, entry_size, abfd) != entry_size)
    return -1;

  (*parser) (buf, entry_size, entry);

  return 0;
}

int
bfd_sym_fetch_contained_types_table_entry (bfd *abfd,
					   bfd_sym_contained_types_table_entry *entry,
					   unsigned long sym_index)
{
  void (*parser) (unsigned char *, size_t, bfd_sym_contained_types_table_entry *);
  unsigned long offset;
  unsigned long entry_size = 0;
  unsigned char buf[0];
  bfd_sym_data_struct *sdata = NULL;

  parser = NULL;
  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  if (sym_index == 0)
    return -1;

  switch (sdata->version)
    {
    case BFD_SYM_VERSION_3_3:
    case BFD_SYM_VERSION_3_2:
      entry_size = 0;
      parser = NULL;
      break;

    case BFD_SYM_VERSION_3_5:
    case BFD_SYM_VERSION_3_4:
    case BFD_SYM_VERSION_3_1:
    default:
      break;
    }

  if (parser == NULL)
    return -1;

  offset = compute_offset (sdata->header.dshb_ctte.dti_first_page,
			   sdata->header.dshb_page_size,
			   entry_size, sym_index);

  if (bfd_seek (abfd, offset, SEEK_SET) < 0)
    return -1;
  if (bfd_read (buf, entry_size, abfd) != entry_size)
    return -1;

  (*parser) (buf, entry_size, entry);

  return 0;
}

int
bfd_sym_fetch_file_references_index_table_entry (bfd *abfd,
						 bfd_sym_file_references_index_table_entry *entry,
						 unsigned long sym_index)
{
  void (*parser) (unsigned char *, size_t, bfd_sym_file_references_index_table_entry *);
  unsigned long offset;
  unsigned long entry_size = 0;
  unsigned char buf[0];
  bfd_sym_data_struct *sdata = NULL;

  parser = NULL;
  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  if (sym_index == 0)
    return -1;

  switch (sdata->version)
    {
    case BFD_SYM_VERSION_3_3:
    case BFD_SYM_VERSION_3_2:
      entry_size = 0;
      parser = NULL;
      break;

    case BFD_SYM_VERSION_3_5:
    case BFD_SYM_VERSION_3_4:
    case BFD_SYM_VERSION_3_1:
    default:
      break;
    }

  if (parser == NULL)
    return -1;

  offset = compute_offset (sdata->header.dshb_fite.dti_first_page,
			   sdata->header.dshb_page_size,
			   entry_size, sym_index);

  if (bfd_seek (abfd, offset, SEEK_SET) < 0)
    return -1;
  if (bfd_read (buf, entry_size, abfd) != entry_size)
    return -1;

  (*parser) (buf, entry_size, entry);

  return 0;
}

int
bfd_sym_fetch_constant_pool_entry (bfd *abfd,
				   bfd_sym_constant_pool_entry *entry,
				   unsigned long sym_index)
{
  void (*parser) (unsigned char *, size_t, bfd_sym_constant_pool_entry *);
  unsigned long offset;
  unsigned long entry_size = 0;
  unsigned char buf[0];
  bfd_sym_data_struct *sdata = NULL;

  parser = NULL;
  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  if (sym_index == 0)
    return -1;

  switch (sdata->version)
    {
    case BFD_SYM_VERSION_3_3:
    case BFD_SYM_VERSION_3_2:
      entry_size = 0;
      parser = NULL;
      break;

    case BFD_SYM_VERSION_3_5:
    case BFD_SYM_VERSION_3_4:
    case BFD_SYM_VERSION_3_1:
    default:
      break;
    }

  if (parser == NULL)
    return -1;

  offset = compute_offset (sdata->header.dshb_fite.dti_first_page,
			   sdata->header.dshb_page_size,
			   entry_size, sym_index);

  if (bfd_seek (abfd, offset, SEEK_SET) < 0)
    return -1;
  if (bfd_read (buf, entry_size, abfd) != entry_size)
    return -1;

  (*parser) (buf, entry_size, entry);

  return 0;
}

int
bfd_sym_fetch_type_table_entry (bfd *abfd,
				bfd_sym_type_table_entry *entry,
				unsigned long sym_index)
{
  void (*parser) (unsigned char *, size_t, bfd_sym_type_table_entry *);
  unsigned long offset;
  unsigned long entry_size = 0;
  unsigned char buf[4];
  bfd_sym_data_struct *sdata = NULL;

  parser = NULL;
  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  switch (sdata->version)
    {
    case BFD_SYM_VERSION_3_3:
    case BFD_SYM_VERSION_3_2:
      entry_size = 4;
      parser = bfd_sym_parse_type_table_entry_v32;
      break;

    case BFD_SYM_VERSION_3_5:
    case BFD_SYM_VERSION_3_4:
    case BFD_SYM_VERSION_3_1:
    default:
      break;
    }

  if (parser == NULL)
    return -1;

  offset = compute_offset (sdata->header.dshb_tte.dti_first_page,
			   sdata->header.dshb_page_size,
			   entry_size, sym_index);

  if (bfd_seek (abfd, offset, SEEK_SET) < 0)
    return -1;
  if (bfd_read (buf, entry_size, abfd) != entry_size)
    return -1;

  (*parser) (buf, entry_size, entry);

  return 0;
}

int
bfd_sym_fetch_type_information_table_entry (bfd *abfd,
					    bfd_sym_type_information_table_entry *entry,
					    unsigned long offset)
{
  unsigned char buf[4];

  BFD_ASSERT (bfd_sym_valid (abfd));

  if (offset == 0)
    return -1;

  if (bfd_seek (abfd, offset, SEEK_SET) < 0)
    return -1;

  if (bfd_read (buf, 4, abfd) != 4)
    return -1;
  entry->nte_index = bfd_getb32 (buf);

  if (bfd_read (buf, 2, abfd) != 2)
    return -1;
  entry->physical_size = bfd_getb16 (buf);

  if (entry->physical_size & 0x8000)
    {
      if (bfd_read (buf, 4, abfd) != 4)
	return -1;
      entry->physical_size &= 0x7fff;
      entry->logical_size = bfd_getb32 (buf);
      entry->offset = offset + 10;
    }
  else
    {
      if (bfd_read (buf, 2, abfd) != 2)
	return -1;
      entry->physical_size &= 0x7fff;
      entry->logical_size = bfd_getb16 (buf);
      entry->offset = offset + 8;
    }

  return 0;
}

int
bfd_sym_fetch_type_table_information (bfd *abfd,
				      bfd_sym_type_information_table_entry *entry,
				      unsigned long sym_index)
{
  bfd_sym_type_table_entry tindex;
  bfd_sym_data_struct *sdata = NULL;

  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  if (sdata->header.dshb_tte.dti_object_count <= 99)
    return -1;
  if (sym_index < 100)
    return -1;

  if (bfd_sym_fetch_type_table_entry (abfd, &tindex, sym_index - 100) < 0)
    return -1;
  if (bfd_sym_fetch_type_information_table_entry (abfd, entry, tindex) < 0)
    return -1;

  return 0;
}

const unsigned char *
bfd_sym_symbol_name (bfd *abfd, unsigned long sym_index)
{
  bfd_sym_data_struct *sdata = NULL;

  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  if (sym_index == 0)
    return (const unsigned char *) "";

  sym_index *= 2;
  if ((sym_index / sdata->header.dshb_page_size)
      > sdata->header.dshb_nte.dti_page_count)
    return (const unsigned char *) "\09[INVALID]";

  return (const unsigned char *) sdata->name_table + sym_index;
}

const unsigned char *
bfd_sym_module_name (bfd *abfd, unsigned long sym_index)
{
  bfd_sym_modules_table_entry entry;

  if (bfd_sym_fetch_modules_table_entry (abfd, &entry, sym_index) < 0)
    return (const unsigned char *) "\09[INVALID]";

  return bfd_sym_symbol_name (abfd, entry.mte_nte_index);
}

const char *
bfd_sym_unparse_storage_kind (enum bfd_sym_storage_kind kind)
{
  switch (kind)
    {
    case BFD_SYM_STORAGE_KIND_LOCAL: return "LOCAL";
    case BFD_SYM_STORAGE_KIND_VALUE: return "VALUE";
    case BFD_SYM_STORAGE_KIND_REFERENCE: return "REFERENCE";
    case BFD_SYM_STORAGE_KIND_WITH: return "WITH";
    default: return "[UNKNOWN]";
    }
}

const char *
bfd_sym_unparse_storage_class (enum bfd_sym_storage_class kind)
{
  switch (kind)
    {
    case BFD_SYM_STORAGE_CLASS_REGISTER: return "REGISTER";
    case BFD_SYM_STORAGE_CLASS_GLOBAL: return "GLOBAL";
    case BFD_SYM_STORAGE_CLASS_FRAME_RELATIVE: return "FRAME_RELATIVE";
    case BFD_SYM_STORAGE_CLASS_STACK_RELATIVE: return "STACK_RELATIVE";
    case BFD_SYM_STORAGE_CLASS_ABSOLUTE: return "ABSOLUTE";
    case BFD_SYM_STORAGE_CLASS_CONSTANT: return "CONSTANT";
    case BFD_SYM_STORAGE_CLASS_RESOURCE: return "RESOURCE";
    case BFD_SYM_STORAGE_CLASS_BIGCONSTANT: return "BIGCONSTANT";
    default: return "[UNKNOWN]";
    }
}

const char *
bfd_sym_unparse_module_kind (enum bfd_sym_module_kind kind)
{
  switch (kind)
    {
    case BFD_SYM_MODULE_KIND_NONE: return "NONE";
    case BFD_SYM_MODULE_KIND_PROGRAM: return "PROGRAM";
    case BFD_SYM_MODULE_KIND_UNIT: return "UNIT";
    case BFD_SYM_MODULE_KIND_PROCEDURE: return "PROCEDURE";
    case BFD_SYM_MODULE_KIND_FUNCTION: return "FUNCTION";
    case BFD_SYM_MODULE_KIND_DATA: return "DATA";
    case BFD_SYM_MODULE_KIND_BLOCK: return "BLOCK";
    default: return "[UNKNOWN]";
    }
}

const char *
bfd_sym_unparse_symbol_scope (enum bfd_sym_symbol_scope scope)
{
  switch (scope)
    {
    case BFD_SYM_SYMBOL_SCOPE_LOCAL: return "LOCAL";
    case BFD_SYM_SYMBOL_SCOPE_GLOBAL: return "GLOBAL";
    default:
      return "[UNKNOWN]";
    }
}

void
bfd_sym_print_file_reference (bfd *abfd,
			      FILE *f,
			      bfd_sym_file_reference *entry)
{
  bfd_sym_file_references_table_entry frtentry;
  int ret;

  ret = bfd_sym_fetch_file_references_table_entry (abfd, &frtentry,
						   entry->fref_frte_index);
  fprintf (f, "FILE ");

  if ((ret < 0) || (frtentry.generic.type != BFD_SYM_FILE_NAME_INDEX))
    fprintf (f, "[INVALID]");
  else
    fprintf (f, "\"%.*s\"",
	     bfd_sym_symbol_name (abfd, frtentry.filename.nte_index)[0],
	     &bfd_sym_symbol_name (abfd, frtentry.filename.nte_index)[1]);

  fprintf (f, " (FRTE %lu)", entry->fref_frte_index);
}

void
bfd_sym_print_resources_table_entry (bfd *abfd,
				     FILE *f,
				     bfd_sym_resources_table_entry *entry)
{
  fprintf (f, " \"%.*s\" (NTE %lu), type \"%.4s\", num %u, size %lu, MTE %lu -- %lu",
	   bfd_sym_symbol_name (abfd, entry->rte_nte_index)[0],
	   &bfd_sym_symbol_name (abfd, entry->rte_nte_index)[1],
	   entry->rte_nte_index, entry->rte_res_type, entry->rte_res_number,
	   entry->rte_res_size, entry->rte_mte_first, entry->rte_mte_last);
}

void
bfd_sym_print_modules_table_entry (bfd *abfd,
				   FILE *f,
				   bfd_sym_modules_table_entry *entry)
{
  fprintf (f, "\"%.*s\" (NTE %lu)",
	   bfd_sym_symbol_name (abfd, entry->mte_nte_index)[0],
	   &bfd_sym_symbol_name (abfd, entry->mte_nte_index)[1],
	   entry->mte_nte_index);

  fprintf (f, "\n            ");

  bfd_sym_print_file_reference (abfd, f, &entry->mte_imp_fref);
  fprintf (f, " range %lu -- %lu",
	   entry->mte_imp_fref.fref_offset, entry->mte_imp_end);

  fprintf (f, "\n            ");

  fprintf (f, "kind %s", bfd_sym_unparse_module_kind (entry->mte_kind));
  fprintf (f, ", scope %s", bfd_sym_unparse_symbol_scope (entry->mte_scope));

  fprintf (f, ", RTE %lu, offset %lu, size %lu",
	   entry->mte_rte_index, entry->mte_res_offset, entry->mte_size);

  fprintf (f, "\n            ");

  fprintf (f, "CMTE %lu, CVTE %lu, CLTE %lu, CTTE %lu, CSNTE1 %lu, CSNTE2 %lu",
	   entry->mte_cmte_index, entry->mte_cvte_index,
	   entry->mte_clte_index, entry->mte_ctte_index,
	   entry->mte_csnte_idx_1, entry->mte_csnte_idx_2);

  if (entry->mte_parent != 0)
    fprintf (f, ", parent %lu", entry->mte_parent);
  else
    fprintf (f, ", no parent");

  if (entry->mte_cmte_index != 0)
    fprintf (f, ", child %lu", entry->mte_cmte_index);
  else
    fprintf (f, ", no child");
}

void
bfd_sym_print_file_references_table_entry (bfd *abfd,
					   FILE *f,
					   bfd_sym_file_references_table_entry *entry)
{
  switch (entry->generic.type)
    {
    case BFD_SYM_FILE_NAME_INDEX:
      fprintf (f, "FILE \"%.*s\" (NTE %lu), modtime ",
	       bfd_sym_symbol_name (abfd, entry->filename.nte_index)[0],
	       &bfd_sym_symbol_name (abfd, entry->filename.nte_index)[1],
	       entry->filename.nte_index);

      fprintf (f, "[UNIMPLEMENTED]");
      /* printModDate (entry->filename.mod_date); */
      fprintf (f, " (0x%lx)", entry->filename.mod_date);
      break;

    case BFD_SYM_END_OF_LIST:
      fprintf (f, "END");
      break;

    default:
      fprintf (f, "\"%.*s\" (MTE %lu), offset %lu",
	       bfd_sym_module_name (abfd, entry->entry.mte_index)[0],
	       &bfd_sym_module_name (abfd, entry->entry.mte_index)[1],
	       entry->entry.mte_index,
	       entry->entry.file_offset);
      break;
    }
}

void
bfd_sym_print_contained_modules_table_entry (bfd *abfd,
					     FILE *f,
					     bfd_sym_contained_modules_table_entry *entry)
{
  switch (entry->generic.type)
    {
    case BFD_SYM_END_OF_LIST:
      fprintf (f, "END");
      break;

    default:
      fprintf (f, "\"%.*s\" (MTE %lu, NTE %lu)",
	       bfd_sym_module_name (abfd, entry->entry.mte_index)[0],
	       &bfd_sym_module_name (abfd, entry->entry.mte_index)[1],
	       entry->entry.mte_index,
	       entry->entry.nte_index);
      break;
    }
}

void
bfd_sym_print_contained_variables_table_entry (bfd *abfd,
					       FILE *f,
					       bfd_sym_contained_variables_table_entry *entry)
{
  if (entry->generic.type == BFD_SYM_END_OF_LIST)
    {
      fprintf (f, "END");
      return;
    }

  if (entry->generic.type == BFD_SYM_SOURCE_FILE_CHANGE)
    {
      bfd_sym_print_file_reference (abfd, f, &entry->file.fref);
      fprintf (f, " offset %lu", entry->file.fref.fref_offset);
      return;
    }

  fprintf (f, "\"%.*s\" (NTE %lu)",
	   bfd_sym_symbol_name (abfd, entry->entry.nte_index)[0],
	   &bfd_sym_symbol_name (abfd, entry->entry.nte_index)[1],
	   entry->entry.nte_index);

  fprintf (f, ", TTE %lu", entry->entry.tte_index);
  fprintf (f, ", offset %lu", entry->entry.file_delta);
  fprintf (f, ", scope %s", bfd_sym_unparse_symbol_scope (entry->entry.scope));

  if (entry->entry.la_size == BFD_SYM_CVTE_SCA)
    fprintf (f, ", latype %s, laclass %s, laoffset %lu",
	     bfd_sym_unparse_storage_kind (entry->entry.address.scstruct.sca_kind),
	     bfd_sym_unparse_storage_class (entry->entry.address.scstruct.sca_class),
	     entry->entry.address.scstruct.sca_offset);
  else if (entry->entry.la_size <= BFD_SYM_CVTE_LA_MAX_SIZE)
    {
      unsigned long i;

      fprintf (f, ", la [");
      for (i = 0; i < entry->entry.la_size; i++)
	fprintf (f, "0x%02x ", entry->entry.address.lastruct.la[i]);
      fprintf (f, "]");
    }
  else if (entry->entry.la_size == BFD_SYM_CVTE_BIG_LA)
    fprintf (f, ", bigla %lu, biglakind %u",
	     entry->entry.address.biglastruct.big_la,
	     entry->entry.address.biglastruct.big_la_kind);

  else
    fprintf (f, ", la [INVALID]");
}

void
bfd_sym_print_contained_statements_table_entry (bfd *abfd,
						FILE *f,
						bfd_sym_contained_statements_table_entry *entry)
{
  if (entry->generic.type == BFD_SYM_END_OF_LIST)
    {
      fprintf (f, "END");
      return;
    }

  if (entry->generic.type == BFD_SYM_SOURCE_FILE_CHANGE)
    {
      bfd_sym_print_file_reference (abfd, f, &entry->file.fref);
      fprintf (f, " offset %lu", entry->file.fref.fref_offset);
      return;
    }

  fprintf (f, "\"%.*s\" (MTE %lu), offset %lu, delta %lu",
	   bfd_sym_module_name (abfd, entry->entry.mte_index)[0],
	   &bfd_sym_module_name (abfd, entry->entry.mte_index)[1],
	   entry->entry.mte_index,
	   entry->entry.mte_offset,
	   entry->entry.file_delta);
}

void
bfd_sym_print_contained_labels_table_entry (bfd *abfd,
					    FILE *f,
					    bfd_sym_contained_labels_table_entry *entry)
{
  if (entry->generic.type == BFD_SYM_END_OF_LIST)
    {
      fprintf (f, "END");
      return;
    }

  if (entry->generic.type == BFD_SYM_SOURCE_FILE_CHANGE)
    {
      bfd_sym_print_file_reference (abfd, f, &entry->file.fref);
      fprintf (f, " offset %lu", entry->file.fref.fref_offset);
      return;
    }

  fprintf (f, "\"%.*s\" (MTE %lu), offset %lu, delta %lu, scope %s",
	   bfd_sym_module_name (abfd, entry->entry.mte_index)[0],
	   &bfd_sym_module_name (abfd, entry->entry.mte_index)[1],
	   entry->entry.mte_index,
	   entry->entry.mte_offset,
	   entry->entry.file_delta,
	   bfd_sym_unparse_symbol_scope (entry->entry.scope));
}

void
bfd_sym_print_contained_types_table_entry (bfd *abfd ATTRIBUTE_UNUSED,
					   FILE *f,
					   bfd_sym_contained_types_table_entry *entry ATTRIBUTE_UNUSED)
{
  fprintf (f, "[UNIMPLEMENTED]");
}

const char *
bfd_sym_type_operator_name (unsigned char num)
{
  switch (num)
    {
    case 1: return "TTE";
    case 2: return "PointerTo";
    case 3: return "ScalarOf";
    case 4: return "ConstantOf";
    case 5: return "EnumerationOf";
    case 6: return "VectorOf";
    case 7: return "RecordOf";
    case 8: return "UnionOf";
    case 9: return "SubRangeOf";
    case 10: return "SetOf";
    case 11: return "NamedTypeOf";
    case 12: return "ProcOf";
    case 13: return "ValueOf";
    case 14: return "ArrayOf";
    default: return "[UNKNOWN OPERATOR]";
    }
}

const char *
bfd_sym_type_basic_name (unsigned char num)
{
  switch (num)
    {
    case 0: return "void";
    case 1: return "pascal string";
    case 2: return "unsigned long";
    case 3: return "signed long";
    case 4: return "extended (10 bytes)";
    case 5: return "pascal boolean (1 byte)";
    case 6: return "unsigned byte";
    case 7: return "signed byte";
    case 8: return "character (1 byte)";
    case 9: return "wide character (2 bytes)";
    case 10: return "unsigned short";
    case 11: return "signed short";
    case 12: return "singled";
    case 13: return "double";
    case 14: return "extended (12 bytes)";
    case 15: return "computational (8 bytes)";
    case 16: return "c string";
    case 17: return "as-is string";
    default: return "[UNKNOWN BASIC TYPE]";
    }
}

int
bfd_sym_fetch_long (unsigned char *buf,
		    unsigned long len,
		    unsigned long offset,
		    unsigned long *offsetptr,
		    long *value)
{
  int ret;

  if (offset >= len)
    {
      *value = 0;
      offset += 0;
      ret = -1;
    }
  else if (! (buf[offset] & 0x80))
    {
      *value = buf[offset];
      offset += 1;
      ret = 0;
    }
  else if (buf[offset] == 0xc0)
    {
      if ((offset + 5) > len)
	{
	  *value = 0;
	  offset = len;
	  ret = -1;
	}
      else
	{
	  *value = bfd_getb32 (buf + offset + 1);
	  offset += 5;
	  ret = 0;
	}
    }
  else if ((buf[offset] & 0xc0) == 0xc0)
    {
      *value =  -(buf[offset] & 0x3f);
      offset += 1;
      ret = 0;
    }
  else if ((buf[offset] & 0xc0) == 0x80)
    {
      if ((offset + 2) > len)
	{
	  *value = 0;
	  offset = len;
	  ret = -1;
	}
      else
	{
	  *value = bfd_getb16 (buf + offset) & 0x3fff;
	  offset += 2;
	  ret = 0;
	}
    }
  else
    abort ();

  if (offsetptr != NULL)
    *offsetptr = offset;

  return ret;
}

void
bfd_sym_print_type_information (bfd *abfd,
				FILE *f,
				unsigned char *buf,
				unsigned long len,
				unsigned long offset,
				unsigned long *offsetptr)
{
  unsigned int type;

  if (offset >= len)
    {
      fprintf (f, "[NULL]");

      if (offsetptr != NULL)
	*offsetptr = offset;
      return;
  }

  type = buf[offset];
  offset++;

  if (! (type & 0x80))
    {
      fprintf (f, "[%s] (0x%x)", bfd_sym_type_basic_name (type & 0x7f), type);

      if (offsetptr != NULL)
	*offsetptr = offset;
      return;
    }

  if (type & 0x40)
    fprintf (f, "[packed ");
  else
    fprintf (f, "[");

  switch (type & 0x3f)
    {
    case 1:
      {
	long value;
	bfd_sym_type_information_table_entry tinfo;

	bfd_sym_fetch_long (buf, len, offset, &offset, &value);
	if (value <= 0)
	  fprintf (f, "[INVALID]");
	else
	  {
	    if (bfd_sym_fetch_type_table_information (abfd, &tinfo, value) < 0)
	      fprintf (f, "[INVALID]");
	    else
	      fprintf (f, "\"%.*s\"",
		       bfd_sym_symbol_name (abfd, tinfo.nte_index)[0],
		       &bfd_sym_symbol_name (abfd, tinfo.nte_index)[1]);
	  }
	fprintf (f, " (TTE %lu)", (unsigned long) value);
	break;
      }

    case 2:
      fprintf (f, "pointer (0x%x) to ", type);
      bfd_sym_print_type_information (abfd, f, buf, len, offset, &offset);
      break;

    case 3:
      {
	long value;

	fprintf (f, "scalar (0x%x) of ", type);
	bfd_sym_print_type_information (abfd, f, buf, len, offset, &offset);
	bfd_sym_fetch_long (buf, len, offset, &offset, &value);
	fprintf (f, " (%lu)", (unsigned long) value);
	break;
      }

    case 5:
      {
	long lower, upper, nelem;
	int i;

	fprintf (f, "enumeration (0x%x) of ", type);
	bfd_sym_print_type_information (abfd, f, buf, len, offset, &offset);
	bfd_sym_fetch_long (buf, len, offset, &offset, &lower);
	bfd_sym_fetch_long (buf, len, offset, &offset, &upper);
	bfd_sym_fetch_long (buf, len, offset, &offset, &nelem);
	fprintf (f, " from %lu to %lu with %lu elements: ",
		 (unsigned long) lower, (unsigned long) upper,
		 (unsigned long) nelem);

	for (i = 0; i < nelem; i++)
	  {
	    fprintf (f, "\n                    ");
	    bfd_sym_print_type_information (abfd, f, buf, len, offset, &offset);
	  }
	break;
      }

    case 6:
      fprintf (f, "vector (0x%x)", type);
      fprintf (f, "\n                index ");
      bfd_sym_print_type_information (abfd, f, buf, len, offset, &offset);
      fprintf (f, "\n                target ");
      bfd_sym_print_type_information (abfd, f, buf, len, offset, &offset);
      break;

    case 7:
    case 8:
      {
	long nrec, eloff, i;

	if ((type & 0x3f) == 7)
	  fprintf (f, "record (0x%x) of ", type);
	else
	  fprintf (f, "union (0x%x) of ", type);

	bfd_sym_fetch_long (buf, len, offset, &offset, &nrec);
	fprintf (f, "%lu elements: ", (unsigned long) nrec);

	for (i = 0; i < nrec; i++)
	  {
	    bfd_sym_fetch_long (buf, len, offset, &offset, &eloff);
	    fprintf (f, "\n                ");
	    fprintf (f, "offset %lu: ", (unsigned long) eloff);
	    bfd_sym_print_type_information (abfd, f, buf, len, offset, &offset);
	  }
	break;
      }

    case 9:
      fprintf (f, "subrange (0x%x) of ", type);
      bfd_sym_print_type_information (abfd, f, buf, len, offset, &offset);
      fprintf (f, " lower ");
      bfd_sym_print_type_information (abfd, f, buf, len, offset, &offset);
      fprintf (f, " upper ");
      bfd_sym_print_type_information (abfd, f, buf, len, offset, &offset);
      break;

  case 11:
    {
      long value;

      fprintf (f, "named type (0x%x) ", type);
      bfd_sym_fetch_long (buf, len, offset, &offset, &value);
      if (value <= 0)
	fprintf (f, "[INVALID]");
      else
	fprintf (f, "\"%.*s\"",
		 bfd_sym_symbol_name (abfd, value)[0],
		 &bfd_sym_symbol_name (abfd, value)[1]);

      fprintf (f, " (NTE %lu) with type ", (unsigned long) value);
      bfd_sym_print_type_information (abfd, f, buf, len, offset, &offset);
      break;
    }

  default:
    fprintf (f, "%s (0x%x)", bfd_sym_type_operator_name (type), type);
    break;
    }

  if (type == (0x40 | 0x6))
    {
      /* Vector.  */
      long n, width, m;
      long l;
      long i;

      bfd_sym_fetch_long (buf, len, offset, &offset, &n);
      bfd_sym_fetch_long (buf, len, offset, &offset, &width);
      bfd_sym_fetch_long (buf, len, offset, &offset, &m);
      /* fprintf (f, "\n                "); */
      fprintf (f, " N %ld, width %ld, M %ld, ", n, width, m);
      for (i = 0; i < m; i++)
	{
	  bfd_sym_fetch_long (buf, len, offset, &offset, &l);
	  if (i != 0)
	    fprintf (f, " ");
	  fprintf (f, "%ld", l);
	}
    }
  else  if (type & 0x40)
    {
      /* Other packed type.  */
      long msb, lsb;

      bfd_sym_fetch_long (buf, len, offset, &offset, &msb);
      bfd_sym_fetch_long (buf, len, offset, &offset, &lsb);
      /* fprintf (f, "\n                "); */
      fprintf (f, " msb %ld, lsb %ld", msb, lsb);
    }

  fprintf (f, "]");

  if (offsetptr != NULL)
    *offsetptr = offset;
}

void
bfd_sym_print_type_information_table_entry (bfd *abfd,
					    FILE *f,
					    bfd_sym_type_information_table_entry *entry)
{
  unsigned char *buf;
  unsigned long offset;
  unsigned int i;

  fprintf (f, "\"%.*s\" (NTE %lu), %lu bytes at %lu, logical size %lu",
	   bfd_sym_symbol_name (abfd, entry->nte_index)[0],
	   &bfd_sym_symbol_name (abfd, entry->nte_index)[1],
	   entry->nte_index,
	   entry->physical_size, entry->offset, entry->logical_size);

  fprintf (f, "\n            ");

  if (bfd_seek (abfd, entry->offset, SEEK_SET) != 0
      || (buf = _bfd_malloc_and_read (abfd, entry->physical_size,
				      entry->physical_size)) == NULL)
    {
      fprintf (f, "[ERROR]\n");
      return;
    }

  fprintf (f, "[");
  for (i = 0; i < entry->physical_size; i++)
    {
      if (i == 0)
	fprintf (f, "0x%02x", buf[i]);
      else
	fprintf (f, " 0x%02x", buf[i]);
    }

  fprintf (f, "]");
  fprintf (f, "\n            ");

  bfd_sym_print_type_information (abfd, f, buf, entry->physical_size, 0, &offset);

  if (offset != entry->physical_size)
    fprintf (f, "\n            [parser used %lu bytes instead of %lu]", offset, entry->physical_size);
  free (buf);
}

void
bfd_sym_print_file_references_index_table_entry (bfd *abfd ATTRIBUTE_UNUSED,
						 FILE *f,
						 bfd_sym_file_references_index_table_entry *entry ATTRIBUTE_UNUSED)
{
  fprintf (f, "[UNIMPLEMENTED]");
}

void
bfd_sym_print_constant_pool_entry (bfd *abfd ATTRIBUTE_UNUSED,
				   FILE *f,
				   bfd_sym_constant_pool_entry *entry ATTRIBUTE_UNUSED)
{
  fprintf (f, "[UNIMPLEMENTED]");
}

unsigned char *
bfd_sym_display_name_table_entry (bfd *abfd,
				  FILE *f,
				  unsigned char *entry)
{
  unsigned long sym_index;
  unsigned long offset;
  bfd_sym_data_struct *sdata = NULL;

  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;
  sym_index = (entry - sdata->name_table) / 2;

  if (sdata->version >= BFD_SYM_VERSION_3_4 && entry[0] == 255 && entry[1] == 0)
    {
      unsigned short length = bfd_getb16 (entry + 2);
      fprintf (f, "[%8lu] \"%.*s\"\n", sym_index, length, entry + 4);
      offset = 2 + length + 1;
    }
  else
    {
      if (! (entry[0] == 0 || (entry[0] == 1 && entry[1] == '\0')))
	fprintf (f, "[%8lu] \"%.*s\"\n", sym_index, entry[0], entry + 1);

      if (sdata->version >= BFD_SYM_VERSION_3_4)
	offset = entry[0] + 2;
      else
	offset = entry[0] + 1;
    }

  return (entry + offset + (offset % 2));
}

void
bfd_sym_display_name_table (bfd *abfd, FILE *f)
{
  unsigned long name_table_len;
  unsigned char *name_table, *name_table_end, *cur;
  bfd_sym_data_struct *sdata = NULL;

  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  name_table_len = sdata->header.dshb_nte.dti_page_count * sdata->header.dshb_page_size;
  name_table = sdata->name_table;
  name_table_end = name_table + name_table_len;

  fprintf (f, "name table (NTE) contains %lu bytes:\n\n", name_table_len);

  cur = name_table;
  for (;;)
    {
      cur = bfd_sym_display_name_table_entry (abfd, f, cur);
      if (cur >= name_table_end)
	break;
    }
}

void
bfd_sym_display_resources_table (bfd *abfd, FILE *f)
{
  unsigned long i;
  bfd_sym_resources_table_entry entry;
  bfd_sym_data_struct *sdata = NULL;

  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  fprintf (f, "resource table (RTE) contains %lu objects:\n\n",
	   sdata->header.dshb_rte.dti_object_count);

  for (i = 1; i <= sdata->header.dshb_rte.dti_object_count; i++)
    {
      if (bfd_sym_fetch_resources_table_entry (abfd, &entry, i) < 0)
	fprintf (f, " [%8lu] [INVALID]\n", i);
      else
	{
	  fprintf (f, " [%8lu] ", i);
	  bfd_sym_print_resources_table_entry (abfd, f, &entry);
	  fprintf (f, "\n");
	}
    }
}

void
bfd_sym_display_modules_table (bfd *abfd, FILE *f)
{
  unsigned long i;
  bfd_sym_modules_table_entry entry;
  bfd_sym_data_struct *sdata = NULL;

  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  fprintf (f, "module table (MTE) contains %lu objects:\n\n",
	   sdata->header.dshb_mte.dti_object_count);

  for (i = 1; i <= sdata->header.dshb_mte.dti_object_count; i++)
    {
      if (bfd_sym_fetch_modules_table_entry (abfd, &entry, i) < 0)
	fprintf (f, " [%8lu] [INVALID]\n", i);
      else
	{
	  fprintf (f, " [%8lu] ", i);
	  bfd_sym_print_modules_table_entry (abfd, f, &entry);
	  fprintf (f, "\n");
	}
    }
}

void
bfd_sym_display_file_references_table (bfd *abfd, FILE *f)
{
  unsigned long i;
  bfd_sym_file_references_table_entry entry;
  bfd_sym_data_struct *sdata = NULL;

  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  fprintf (f, "file reference table (FRTE) contains %lu objects:\n\n",
	   sdata->header.dshb_frte.dti_object_count);

  for (i = 1; i <= sdata->header.dshb_frte.dti_object_count; i++)
    {
      if (bfd_sym_fetch_file_references_table_entry (abfd, &entry, i) < 0)
	fprintf (f, " [%8lu] [INVALID]\n", i);
      else
	{
	  fprintf (f, " [%8lu] ", i);
	  bfd_sym_print_file_references_table_entry (abfd, f, &entry);
	  fprintf (f, "\n");
	}
    }
}

void
bfd_sym_display_contained_modules_table (bfd *abfd, FILE *f)
{
  unsigned long i;
  bfd_sym_contained_modules_table_entry entry;
  bfd_sym_data_struct *sdata = NULL;

  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  fprintf (f, "contained modules table (CMTE) contains %lu objects:\n\n",
	   sdata->header.dshb_cmte.dti_object_count);

  for (i = 1; i <= sdata->header.dshb_cmte.dti_object_count; i++)
    {
      if (bfd_sym_fetch_contained_modules_table_entry (abfd, &entry, i) < 0)
	fprintf (f, " [%8lu] [INVALID]\n", i);
      else
	{
	  fprintf (f, " [%8lu] ", i);
	  bfd_sym_print_contained_modules_table_entry (abfd, f, &entry);
	  fprintf (f, "\n");
	}
    }
}

void
bfd_sym_display_contained_variables_table (bfd *abfd, FILE *f)
{
  unsigned long i;
  bfd_sym_contained_variables_table_entry entry;
  bfd_sym_data_struct *sdata = NULL;

  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  fprintf (f, "contained variables table (CVTE) contains %lu objects:\n\n",
	   sdata->header.dshb_cvte.dti_object_count);

  for (i = 1; i <= sdata->header.dshb_cvte.dti_object_count; i++)
    {
      if (bfd_sym_fetch_contained_variables_table_entry (abfd, &entry, i) < 0)
	fprintf (f, " [%8lu] [INVALID]\n", i);
      else
	{
	  fprintf (f, " [%8lu] ", i);
	  bfd_sym_print_contained_variables_table_entry (abfd, f, &entry);
	  fprintf (f, "\n");
	}
    }

  fprintf (f, "\n");
}

void
bfd_sym_display_contained_statements_table (bfd *abfd, FILE *f)
{
  unsigned long i;
  bfd_sym_contained_statements_table_entry entry;
  bfd_sym_data_struct *sdata = NULL;

  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  fprintf (f, "contained statements table (CSNTE) contains %lu objects:\n\n",
	   sdata->header.dshb_csnte.dti_object_count);

  for (i = 1; i <= sdata->header.dshb_csnte.dti_object_count; i++)
    {
      if (bfd_sym_fetch_contained_statements_table_entry (abfd, &entry, i) < 0)
	fprintf (f, " [%8lu] [INVALID]\n", i);
      else
	{
	  fprintf (f, " [%8lu] ", i);
	  bfd_sym_print_contained_statements_table_entry (abfd, f, &entry);
	  fprintf (f, "\n");
	}
    }
}

void
bfd_sym_display_contained_labels_table (bfd *abfd, FILE *f)
{
  unsigned long i;
  bfd_sym_contained_labels_table_entry entry;
  bfd_sym_data_struct *sdata = NULL;

  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  fprintf (f, "contained labels table (CLTE) contains %lu objects:\n\n",
	   sdata->header.dshb_clte.dti_object_count);

  for (i = 1; i <= sdata->header.dshb_clte.dti_object_count; i++)
    {
      if (bfd_sym_fetch_contained_labels_table_entry (abfd, &entry, i) < 0)
	fprintf (f, " [%8lu] [INVALID]\n", i);
      else
	{
	  fprintf (f, " [%8lu] ", i);
	  bfd_sym_print_contained_labels_table_entry (abfd, f, &entry);
	  fprintf (f, "\n");
	}
    }
}

void
bfd_sym_display_contained_types_table (bfd *abfd, FILE *f)
{
  unsigned long i;
  bfd_sym_contained_types_table_entry entry;
  bfd_sym_data_struct *sdata = NULL;

  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  fprintf (f, "contained types table (CTTE) contains %lu objects:\n\n",
	   sdata->header.dshb_ctte.dti_object_count);

  for (i = 1; i <= sdata->header.dshb_ctte.dti_object_count; i++)
    {
      if (bfd_sym_fetch_contained_types_table_entry (abfd, &entry, i) < 0)
	fprintf (f, " [%8lu] [INVALID]\n", i);
      else
	{
	  fprintf (f, " [%8lu] ", i);
	  bfd_sym_print_contained_types_table_entry (abfd, f, &entry);
	  fprintf (f, "\n");
	}
    }
}

void
bfd_sym_display_file_references_index_table (bfd *abfd, FILE *f)
{
  unsigned long i;
  bfd_sym_file_references_index_table_entry entry;
  bfd_sym_data_struct *sdata = NULL;

  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  fprintf (f, "file references index table (FITE) contains %lu objects:\n\n",
	   sdata->header.dshb_fite.dti_object_count);

  for (i = 1; i <= sdata->header.dshb_fite.dti_object_count; i++)
    {
      if (bfd_sym_fetch_file_references_index_table_entry (abfd, &entry, i) < 0)
	fprintf (f, " [%8lu] [INVALID]\n", i);
      else
	{
	  fprintf (f, " [%8lu] ", i);
	  bfd_sym_print_file_references_index_table_entry (abfd, f, &entry);
	  fprintf (f, "\n");
	}
    }
}

void
bfd_sym_display_constant_pool (bfd *abfd, FILE *f)
{
  unsigned long i;
  bfd_sym_constant_pool_entry entry;
  bfd_sym_data_struct *sdata = NULL;

  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  fprintf (f, "constant pool (CONST) contains %lu objects:\n\n",
	   sdata->header.dshb_const.dti_object_count);

  for (i = 1; i <= sdata->header.dshb_const.dti_object_count; i++)
    {
      if (bfd_sym_fetch_constant_pool_entry (abfd, &entry, i) < 0)
	fprintf (f, " [%8lu] [INVALID]\n", i);
      else
	{
	  fprintf (f, " [%8lu] ", i);
	  bfd_sym_print_constant_pool_entry (abfd, f, &entry);
	  fprintf (f, "\n");
	}
    }
}

void
bfd_sym_display_type_information_table (bfd *abfd, FILE *f)
{
  unsigned long i;
  bfd_sym_type_table_entry sym_index;
  bfd_sym_type_information_table_entry entry;
  bfd_sym_data_struct *sdata = NULL;

  BFD_ASSERT (bfd_sym_valid (abfd));
  sdata = abfd->tdata.sym_data;

  if (sdata->header.dshb_tte.dti_object_count > 99)
    fprintf (f, "type table (TINFO) contains %lu objects:\n\n",
	     sdata->header.dshb_tte.dti_object_count - 99);
  else
    {
      fprintf (f, "type table (TINFO) contains [INVALID] objects:\n\n");
      return;
    }

  for (i = 100; i <= sdata->header.dshb_tte.dti_object_count; i++)
    {
      if (bfd_sym_fetch_type_table_entry (abfd, &sym_index, i - 100) < 0)
	fprintf (f, " [%8lu] [INVALID]\n", i);
      else
	{
	  fprintf (f, " [%8lu] (TINFO %lu) ", i, sym_index);

	  if (bfd_sym_fetch_type_information_table_entry (abfd, &entry, sym_index) < 0)
	    fprintf (f, "[INVALID]");
	  else
	    bfd_sym_print_type_information_table_entry (abfd, f, &entry);

	  fprintf (f, "\n");
	}
    }
}

int
bfd_sym_scan (bfd *abfd, bfd_sym_version version, bfd_sym_data_struct *mdata)
{
  asection *bfdsec;
  const char *name = "symbols";

  mdata->name_table = 0;
  mdata->sbfd = abfd;
  mdata->version = version;

  if (bfd_seek (abfd, 0, SEEK_SET) != 0
      || bfd_sym_read_header (abfd, &mdata->header, mdata->version) != 0)
    return -1;

  mdata->name_table = bfd_sym_read_name_table (abfd, &mdata->header);
  if (mdata->name_table == NULL)
    return -1;

  bfdsec = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS);
  if (bfdsec == NULL)
    return -1;

  bfdsec->vma = 0;
  bfdsec->lma = 0;
  bfdsec->size = 0;
  bfdsec->filepos = 0;
  bfdsec->alignment_power = 0;

  abfd->tdata.sym_data = mdata;

  return 0;
}

bfd_cleanup
bfd_sym_object_p (bfd *abfd)
{
  bfd_sym_version version = -1;
  bfd_sym_data_struct *mdata;

  if (bfd_seek (abfd, 0, SEEK_SET) != 0
      || bfd_sym_read_version (abfd, &version) != 0)
    goto wrong;

  mdata = (bfd_sym_data_struct *) bfd_alloc (abfd, sizeof (*mdata));
  if (mdata == NULL)
    goto fail;

  if (bfd_sym_scan (abfd, version, mdata) != 0)
    goto wrong;

  return _bfd_no_cleanup;

 wrong:
  bfd_set_error (bfd_error_wrong_format);

 fail:
  return NULL;
}

#define bfd_sym_make_empty_symbol _bfd_generic_make_empty_symbol

void
bfd_sym_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, asymbol *symbol, symbol_info *ret)
{
  bfd_symbol_info (symbol, ret);
}

long
bfd_sym_get_symtab_upper_bound (bfd *abfd ATTRIBUTE_UNUSED)
{
  return 0;
}

long
bfd_sym_canonicalize_symtab (bfd *abfd ATTRIBUTE_UNUSED, asymbol **sym ATTRIBUTE_UNUSED)
{
  return 0;
}

int
bfd_sym_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
			struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
  return 0;
}

const bfd_target sym_vec =
{
  "sym",			/* Name.  */
  bfd_target_sym_flavour,	/* Flavour.  */
  BFD_ENDIAN_BIG,		/* Byteorder.  */
  BFD_ENDIAN_BIG,		/* Header byteorder.  */
  (HAS_RELOC | EXEC_P |		/* Object flags.  */
   HAS_LINENO | HAS_DEBUG |
   HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
  (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | SEC_DATA
   | SEC_ROM | SEC_HAS_CONTENTS), /* Section_flags.  */
  0,				/* Symbol_leading_char.  */
  ' ',				/* AR_pad_char.  */
  16,				/* AR_max_namelen.  */
  0,				/* match priority.  */
  TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols.  */
  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_check_format.  */
    _bfd_dummy_target,
    bfd_sym_object_p,		/* bfd_check_format.  */
    _bfd_dummy_target,
    _bfd_dummy_target,
  },
  {				/* bfd_set_format.  */
    _bfd_bool_bfd_false_error,
    bfd_sym_mkobject,
    _bfd_bool_bfd_false_error,
    _bfd_bool_bfd_false_error,
  },
  {				/* bfd_write_contents.  */
    _bfd_bool_bfd_false_error,
    _bfd_bool_bfd_true,
    _bfd_bool_bfd_false_error,
    _bfd_bool_bfd_false_error,
  },

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

  NULL,

  NULL
};