Initial creation of sourceware repository

1 files changed, 0 insertions, 1665 deletions

diff --git a/gdb/dstread.c b/gdb/dstread.c
deleted file mode 100644
index d23f9f6..0000000
--- a/gdb/dstread.c
+++ /dev/null
@@ -1,1665 +0,0 @@
-/* Read apollo DST symbol tables and convert to internal format, for GDB.
-   Contributed by Troy Rollo, University of NSW (troy@cbme.unsw.edu.au).
-   Copyright 1993 Free Software Foundation, Inc.
-
-This file is part of GDB.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
-
-#include "defs.h"
-#include "symtab.h"
-#include "gdbtypes.h"
-#include "breakpoint.h"
-#include "bfd.h"
-#include "symfile.h"
-#include "objfiles.h"
-#include "buildsym.h"
-#include "obstack.h"
-
-#include "gdb_string.h"
-
-#include "dst.h"
-
-CORE_ADDR cur_src_start_addr, cur_src_end_addr;
-dst_sec	blocks_info, lines_info, symbols_info;
-
-/* Vector of line number information.  */
-
-static struct linetable *line_vector;
-
-/* Index of next entry to go in line_vector_index.  */
-
-static int line_vector_index;
-
-/* Last line number recorded in the line vector.  */
-
-static int prev_line_number;
-
-/* Number of elements allocated for line_vector currently.  */
-
-static int line_vector_length;
-
-static int
-init_dst_sections PARAMS ((int));
-
-static void
-read_dst_symtab PARAMS ((struct objfile *));
-
-static void
-find_dst_sections PARAMS ((bfd *, sec_ptr, PTR));
-
-static void
-dst_symfile_init PARAMS ((struct objfile *));
-
-static void
-dst_new_init PARAMS ((struct objfile *));
-
-static void
-dst_symfile_read PARAMS ((struct objfile *, struct section_offsets *, int));
-
-static void
-dst_symfile_finish PARAMS ((struct objfile *));
-
-static void
-dst_end_symtab PARAMS ((struct objfile *));
-
-static void
-complete_symtab PARAMS ((char *, CORE_ADDR, unsigned int));
-
-static void
-dst_start_symtab PARAMS ((void));
-
-static void
-dst_record_line PARAMS ((int, CORE_ADDR));
-
-/* Manage the vector of line numbers.  */
-/* FIXME: Use record_line instead.  */
-
-static void
-dst_record_line (line, pc)
-     int line;
-     CORE_ADDR pc;
-{
-  struct linetable_entry *e;
-  /* Make sure line vector is big enough.  */
-
-  if (line_vector_index + 2 >= line_vector_length)
-    {
-      line_vector_length *= 2;
-      line_vector = (struct linetable *)
-	xrealloc ((char *) line_vector, sizeof (struct linetable)
-		  + (line_vector_length
-		     * sizeof (struct linetable_entry)));
-    }
-
-  e = line_vector->item + line_vector_index++;
-  e->line = line; e->pc = pc;
-}
-
-/* Start a new symtab for a new source file.
-   It indicates the start of data for one original source file.  */
-/* FIXME: use start_symtab, like coffread.c now does.  */
-
-static void
-dst_start_symtab ()
-{
-  /* Initialize the source file line number information for this file.  */
-
-  if (line_vector)		/* Unlikely, but maybe possible? */
-    free ((PTR)line_vector);
-  line_vector_index = 0;
-  line_vector_length = 1000;
-  prev_line_number = -2;	/* Force first line number to be explicit */
-  line_vector = (struct linetable *)
-    xmalloc (sizeof (struct linetable)
-	     + line_vector_length * sizeof (struct linetable_entry));
-}
-
-/* Save the vital information from when starting to read a file,
-   for use when closing off the current file.
-   NAME is the file name the symbols came from, START_ADDR is the first
-   text address for the file, and SIZE is the number of bytes of text.  */
-
-static void
-complete_symtab (name, start_addr, size)
-    char *name;
-    CORE_ADDR start_addr;
-    unsigned int size;
-{
-  last_source_file = savestring (name, strlen (name));
-  cur_src_start_addr = start_addr;
-  cur_src_end_addr = start_addr + size;
-
-  if (current_objfile -> ei.entry_point >= cur_src_start_addr &&
-      current_objfile -> ei.entry_point <  cur_src_end_addr)
-    {
-      current_objfile -> ei.entry_file_lowpc = cur_src_start_addr;
-      current_objfile -> ei.entry_file_highpc = cur_src_end_addr;
-    }
-}
-
-/* Finish the symbol definitions for one main source file,
-   close off all the lexical contexts for that file
-   (creating struct block's for them), then make the
-   struct symtab for that file and put it in the list of all such. */
-/* FIXME: Use end_symtab, like coffread.c now does.  */
-
-static void
-dst_end_symtab (objfile)
-     struct objfile *objfile;
-{
-  register struct symtab *symtab;
-  register struct blockvector *blockvector;
-  register struct linetable *lv;
-
-  /* Create the blockvector that points to all the file's blocks.  */
-
-  blockvector = make_blockvector (objfile);
-
-  /* Now create the symtab object for this source file.  */
-  symtab = allocate_symtab (last_source_file, objfile);
-
-  /* Fill in its components.  */
-  symtab->blockvector = blockvector;
-  symtab->free_code = free_linetable;
-  symtab->free_ptr = 0;
-  symtab->filename = last_source_file;
-  symtab->dirname = NULL;
-  symtab->debugformat = obsavestring ("Apollo DST", 10,
-				      &objfile -> symbol_obstack);
-  lv = line_vector;
-  lv->nitems = line_vector_index;
-  symtab->linetable = (struct linetable *)
-    xrealloc ((char *) lv, (sizeof (struct linetable)
-		   + lv->nitems * sizeof (struct linetable_entry)));
-
-  free_named_symtabs (symtab->filename);
-
-  /* Reinitialize for beginning of new file. */
-  line_vector = 0;
-  line_vector_length = -1;
-  last_source_file = NULL;
-}
-
-/* dst_symfile_init ()
-   is the dst-specific initialization routine for reading symbols.
-
-   We will only be called if this is a DST or DST-like file.
-   BFD handles figuring out the format of the file, and code in symtab.c
-   uses BFD's determination to vector to us.
-
-   The ultimate result is a new symtab (or, FIXME, eventually a psymtab).  */
-
-static void
-dst_symfile_init (objfile)
-     struct objfile *objfile;
-{
-  asection	*section;
-  bfd *abfd = objfile->obfd;
-
-  init_entry_point_info (objfile);
-
-}
-
-/* This function is called for every section; it finds the outer limits
-   of the line table (minimum and maximum file offset) so that the
-   mainline code can read the whole thing for efficiency.  */
-
-/* ARGSUSED */
-static void
-find_dst_sections (abfd, asect, vpinfo)
-     bfd *abfd;
-     sec_ptr asect;
-     PTR vpinfo;
-{
-  int size, count;
-  long base;
-  file_ptr offset, maxoff;
-  dst_sec *section;
-
-/* WARNING WILL ROBINSON!  ACCESSING BFD-PRIVATE DATA HERE!  FIXME!  */
-  size = asect->_raw_size;
-  offset = asect->filepos;
-  base = asect->vma;
-/* End of warning */
-
-  section = NULL;
-  if (!strcmp(asect->name, ".blocks"))
-    section = &blocks_info;
-  else if (!strcmp(asect->name, ".lines"))
-    section = &lines_info;
-  else if (!strcmp(asect->name, ".symbols"))
-    section = &symbols_info;
-  if (!section)
-    return;
-  section->size = size;
-  section->position = offset;
-  section->base = base;
-}
-
-
-/* The BFD for this file -- only good while we're actively reading
-   symbols into a psymtab or a symtab.  */
-
-static bfd *symfile_bfd;
-
-/* Read a symbol file, after initialization by dst_symfile_init.  */
-/* FIXME!  Addr and Mainline are not used yet -- this will not work for
-   shared libraries or add_file!  */
-
-/* ARGSUSED */
-static void
-dst_symfile_read (objfile, section_offsets, mainline)
-     struct objfile *objfile;
-     struct section_offsets *section_offsets;
-     int mainline;
-{
-  bfd *abfd = objfile->obfd;
-  char *name = bfd_get_filename (abfd);
-  int desc;
-  register int val;
-  int num_symbols;
-  int symtab_offset;
-  int stringtab_offset;
-
-  symfile_bfd = abfd;			/* Kludge for swap routines */
-
-/* WARNING WILL ROBINSON!  ACCESSING BFD-PRIVATE DATA HERE!  FIXME!  */
-   desc = fileno ((FILE *)(abfd->iostream));	/* File descriptor */
-
-  /* Read the line number table, all at once.  */
-  bfd_map_over_sections (abfd, find_dst_sections, (PTR)NULL);
-
-  val = init_dst_sections (desc);
-  if (val < 0)
-    error ("\"%s\": error reading debugging symbol tables\n", name);
-
-  init_minimal_symbol_collection ();
-  make_cleanup (discard_minimal_symbols, 0);
-
-  /* Now that the executable file is positioned at symbol table,
-     process it and define symbols accordingly.  */
-
-  read_dst_symtab (objfile);
-
-  /* Sort symbols alphabetically within each block.  */
-
-  {
-    struct symtab *s;
-    for (s = objfile -> symtabs; s != NULL; s = s -> next)
-      {
-	sort_symtab_syms (s);
-      }
-  }
-
-  /* Install any minimal symbols that have been collected as the current
-     minimal symbols for this objfile. */
-
-  install_minimal_symbols (objfile);
-}
-
-static void
-dst_new_init (ignore)
-     struct objfile *ignore;
-{
-	/* Nothin' to do */
-}
-
-/* Perform any local cleanups required when we are done with a particular
-   objfile.  I.E, we are in the process of discarding all symbol information
-   for an objfile, freeing up all memory held for it, and unlinking the
-   objfile struct from the global list of known objfiles. */
-
-static void
-dst_symfile_finish (objfile)
-     struct objfile *objfile;
-{
-    /* Nothing to do */
-}
-
-
-/* Get the next line number from the DST. Returns 0 when we hit an
- * end directive or cannot continue for any other reason.
- *
- * Note that ordinary pc deltas are multiplied by two. Apparently
- * this is what was really intended.
- */
-static int
-get_dst_line(buffer, pc)
-    signed char **buffer;
-    long *pc;
-{
-	static last_pc = 0;
-	static long last_line = 0;
-	static int last_file = 0;
-	dst_ln_entry_ptr_t entry;
-	int size;
-	dst_src_loc_t *src_loc;
-
-	if (*pc != -1)
-	{
-		last_pc = *pc;
-		*pc = -1;
-	}
-	entry = (dst_ln_entry_ptr_t) *buffer;
-
-	while (dst_ln_ln_delta(*entry) == dst_ln_escape_flag)
-	{
-		switch(entry->esc.esc_code)
-		{
-		case dst_ln_pad:
-			size = 1;         /* pad byte */
-			break;
-		case dst_ln_file:
-		        /* file escape.  Next 4 bytes are a dst_src_loc_t */
-			size = 5;
-			src_loc = (dst_src_loc_t *) (*buffer + 1);
-			last_line = src_loc->line_number;
-			last_file = src_loc->file_index;
-			break;
-		case dst_ln_dln1_dpc1:
-			/* 1 byte line delta, 1 byte pc delta */    
-			last_line += (*buffer)[1];
-			last_pc += 2 * (unsigned char) (*buffer)[2];
-			dst_record_line(last_line, last_pc);
-			size = 3;
-			break;
-		case dst_ln_dln2_dpc2:
-			/* 2 bytes line delta, 2 bytes pc delta */
-			last_line += *(short *) (*buffer + 1);
-			last_pc += 2 * (*(short *) (*buffer + 3));
-			size = 5;
-			dst_record_line(last_line, last_pc);
-			break;
-		case dst_ln_ln4_pc4:
-			/* 4 bytes ABSOLUTE line number, 4 bytes ABSOLUTE pc */
-			last_line = *(unsigned long *) (*buffer + 1);
-			last_pc = *(unsigned long *) (*buffer + 5);
-			size = 9;
-			dst_record_line(last_line, last_pc);
-			break;
-		case dst_ln_dln1_dpc0:
-			/* 1 byte line delta, pc delta = 0 */
-			size = 2;
-			last_line+= (*buffer)[1];
-			break;
-		 case dst_ln_ln_off_1:
-			/* statement escape, stmt # = 1 (2nd stmt on line) */
-			size = 1;
-			break;
-		case dst_ln_ln_off:
-			/* statement escape, stmt # = next byte */
-			size = 2;
-			break;
-		case dst_ln_entry:
-			/* entry escape, next byte is entry number */    
-			size = 2;
-			break;
-		case dst_ln_exit:
-			/* exit escape */
-			size = 1;
-			break;
-		case dst_ln_stmt_end:
-			/* gap escape, 4 bytes pc delta */
-			size = 5;
-			/* last_pc += 2 * (*(long *) (*buffer + 1)); */
-			/* Apparently this isn't supposed to actually modify
-			 * the pc value. Totally weird.
-			 */
-			break;
-		 case dst_ln_escape_11:
-		 case dst_ln_escape_12:
-		 case dst_ln_escape_13:
-			size = 1;
-			break;
-		 case dst_ln_nxt_byte:
-			/* This shouldn't happen. If it does, we're SOL */
-			return 0;
-			break;
-		 case dst_ln_end:
-			/* end escape, final entry follows */
-			return 0;
-		}
-		*buffer += (size < 0) ? -size : size;
-		entry = (dst_ln_entry_ptr_t) *buffer;
-	}
-	last_line += dst_ln_ln_delta(*entry);
-	last_pc += entry->delta.pc_delta * 2;
-	(*buffer)++;
-	dst_record_line(last_line, last_pc);
-	return 1;
-}
-
-static	void
-enter_all_lines(buffer, address)
-    char *buffer;
-    long address;
-{
-    if (buffer)
-	while (get_dst_line(&buffer, &address));
-}
-
-static int
-get_dst_entry(buffer, ret_entry)
-    char *buffer;
-    dst_rec_ptr_t *ret_entry;
-{
-    int size;
-    dst_rec_ptr_t entry;
-    static int last_type;
-    int	ar_size;
-    static unsigned lu3;
-
-    entry = (dst_rec_ptr_t) buffer;
-    switch(entry->rec_type)
-    {
-    case dst_typ_pad:
-	size = 0;
-	break;
-    case dst_typ_comp_unit:
-	size = sizeof(DST_comp_unit(entry));
-	break;
-    case dst_typ_section_tab:
-	size = sizeof(DST_section_tab(entry))
-		+ ((int) DST_section_tab(entry).number_of_sections
-		   - dst_dummy_array_size) * sizeof(long);
-	break;
-    case dst_typ_file_tab:
-	size = sizeof(DST_file_tab(entry))
-		+ ((int) DST_file_tab(entry).number_of_files
-		   - dst_dummy_array_size) * sizeof(dst_file_desc_t);
-	break;
-    case dst_typ_block:
-	size = sizeof(DST_block(entry))
-		+ ((int) DST_block(entry).n_of_code_ranges
-		   - dst_dummy_array_size) * sizeof(dst_code_range_t);
-	break;
-    case dst_typ_5:
-	size = -1;
-	break;
-    case dst_typ_var:
-	size = sizeof(DST_var(entry)) -
-		sizeof(dst_var_loc_long_t) * dst_dummy_array_size +
-		DST_var(entry).no_of_locs *
-		( DST_var(entry).short_locs ?
-		  sizeof(dst_var_loc_short_t):
-		  sizeof(dst_var_loc_long_t));
-	break;
-    case dst_typ_pointer:
-	size = sizeof(DST_pointer(entry));
-	break;
-    case dst_typ_array:
-	size = sizeof(DST_array(entry));
-	break;
-    case dst_typ_subrange:
-	size = sizeof(DST_subrange(entry));
-	break;
-    case dst_typ_set:
-	size = sizeof(DST_set(entry));
-	break;
-    case dst_typ_implicit_enum:
-	size = sizeof(DST_implicit_enum(entry))
-		+ ((int) DST_implicit_enum(entry).nelems
-		   - dst_dummy_array_size) * sizeof(dst_rel_offset_t);
-	break;
-    case dst_typ_explicit_enum:
-	size = sizeof(DST_explicit_enum(entry))
-		+ ((int) DST_explicit_enum(entry).nelems
-		   - dst_dummy_array_size) * sizeof(dst_enum_elem_t);
-	break;
-    case dst_typ_short_rec:
-	size = sizeof(DST_short_rec(entry))
-		+ DST_short_rec(entry).nfields * sizeof(dst_short_field_t)
-		- dst_dummy_array_size * sizeof(dst_field_t);
-	break;
-    case dst_typ_short_union:
-	size = sizeof(DST_short_union(entry))
-		+ DST_short_union(entry).nfields * sizeof(dst_short_field_t)
-		- dst_dummy_array_size * sizeof(dst_field_t);
-	break;
-    case dst_typ_file:
-	size = sizeof(DST_file(entry));
-	break;
-    case dst_typ_offset:
-	size = sizeof(DST_offset(entry));
-	break;
-    case dst_typ_alias:
-	size = sizeof(DST_alias(entry));
-	break;
-    case dst_typ_signature:
-	size = sizeof(DST_signature(entry)) +
-		((int) DST_signature(entry).nargs -
-		 dst_dummy_array_size) * sizeof(dst_arg_t);
-	break;
-    case dst_typ_21:
-	size = -1;
-	break;
-    case dst_typ_old_label:
-	size = sizeof(DST_old_label(entry));
-	break;
-    case dst_typ_scope:
-	size = sizeof(DST_scope(entry));
-	break;
-    case dst_typ_end_scope:
-	size = 0;
-	break;
-    case dst_typ_25:
-    case dst_typ_26:
-	size = -1;
-	break;
-    case dst_typ_string_tab:
-    case dst_typ_global_name_tab:
-	size = sizeof(DST_string_tab(entry))
-		+ DST_string_tab(entry).length
-		- dst_dummy_array_size;
-	break;
-    case dst_typ_forward:
-	size = sizeof(DST_forward(entry));
-	get_dst_entry((char *) entry + DST_forward(entry).rec_off, &entry);
-	break;
-    case dst_typ_aux_size:
-	size = sizeof(DST_aux_size(entry));
-	break;
-    case dst_typ_aux_align:
-	size = sizeof(DST_aux_align(entry));
-	break;
-    case dst_typ_aux_field_size:
-	size = sizeof(DST_aux_field_size(entry));
-	break;
-    case dst_typ_aux_field_off:
-	size = sizeof(DST_aux_field_off(entry));
-	break;
-    case dst_typ_aux_field_align:
-	size = sizeof(DST_aux_field_align(entry));
-	break;
-    case dst_typ_aux_qual:
-	size = sizeof(DST_aux_qual(entry));
-	break;
-    case dst_typ_aux_var_bound:
-	size = sizeof(DST_aux_var_bound(entry));
-	break;
-    case dst_typ_extension:
-	size = DST_extension(entry).rec_size;
-	break;
-    case dst_typ_string:
-	size = sizeof(DST_string(entry));
-	break;
-    case dst_typ_old_entry:
-	size = 48; /* Obsolete entry type */
-	break;
-    case dst_typ_const:
-	size = sizeof(DST_const(entry))
-		+ DST_const(entry).value.length
-		- sizeof(DST_const(entry).value.val);
-	break;
-    case dst_typ_reference:
-	size = sizeof(DST_reference(entry));
-	break;
-    case dst_typ_old_record:
-    case dst_typ_old_union:
-    case dst_typ_record:
-    case dst_typ_union:
-	size = sizeof(DST_record(entry))
-		+ ((int) DST_record(entry).nfields
-		   - dst_dummy_array_size) * sizeof(dst_field_t);
-	break;
-    case dst_typ_aux_type_deriv:
-	size = sizeof(DST_aux_type_deriv(entry));
-	break;
-    case dst_typ_locpool:
-	size = sizeof(DST_locpool(entry))
-		+ ((int) DST_locpool(entry).length -
-		   dst_dummy_array_size);
-	break;
-    case dst_typ_variable:
-	size = sizeof(DST_variable(entry));
-	break;
-    case dst_typ_label:
-	size = sizeof(DST_label(entry));
-	break;
-    case dst_typ_entry:
-	size = sizeof(DST_entry(entry));
-	break;
-    case dst_typ_aux_lifetime:
-	size = sizeof(DST_aux_lifetime(entry));
-	break;
-    case dst_typ_aux_ptr_base:
-	size = sizeof(DST_aux_ptr_base(entry));
-	break;
-    case dst_typ_aux_src_range:
-	size = sizeof(DST_aux_src_range(entry));
-	break;
-    case dst_typ_aux_reg_val:
-	size = sizeof(DST_aux_reg_val(entry));
-	break;
-    case dst_typ_aux_unit_names:
-	size = sizeof(DST_aux_unit_names(entry))
-		+ ((int) DST_aux_unit_names(entry).number_of_names
-		   - dst_dummy_array_size) * sizeof(dst_rel_offset_t);
-	break;
-    case dst_typ_aux_sect_info:
-	size = sizeof(DST_aux_sect_info(entry))
-		+ ((int) DST_aux_sect_info(entry).number_of_refs
-		   - dst_dummy_array_size) * sizeof(dst_sect_ref_t);
-	break;
-    default:
-	size = -1;
-	break;
-    }
-    if (size == -1)
-    {
-	fprintf_unfiltered(gdb_stderr, "Warning: unexpected DST entry type (%d) found\nLast valid entry was of type: %d\n",
-		(int) entry->rec_type,
-		last_type);
-	fprintf_unfiltered(gdb_stderr, "Last unknown_3 value: %d\n", lu3);
-	size = 0;
-    }
-    else
-	last_type = entry->rec_type;
-    if (size & 1) /* Align on a word boundary */
-	size++;
-   size += 2;
-   *ret_entry = entry;
-   return size;
-}
-
-static	int next_dst_entry(buffer, entry, table)
-    char **buffer;
-    dst_rec_ptr_t *entry;
-    dst_sec *table;
-{
-    if (*buffer - table->buffer >= table->size)
-    {
-	*entry = NULL;
-	return 0;
-    }
-    *buffer += get_dst_entry(*buffer, entry);
-    return 1;
-}
-
-#define NEXT_BLK(a, b) next_dst_entry(a, b, &blocks_info)
-#define NEXT_SYM(a, b) next_dst_entry(a, b, &symbols_info)
-#define	DST_OFFSET(a, b) ((char *) (a) + (b))
-
-static	dst_rec_ptr_t	section_table = NULL;
-
-char *
-get_sec_ref(ref)
-    dst_sect_ref_t *ref;
-{
-	dst_sec *section = NULL;
-	long offset;
-
-	if (!section_table || !ref->sect_index)
-		return NULL;
-	offset = DST_section_tab(section_table).section_base[ref->sect_index-1]
-		+ ref->sect_offset;
-	if (offset >= blocks_info.base &&
-	    offset < blocks_info.base + blocks_info.size)
-		section = &blocks_info;
-	else if (offset >= symbols_info.base &&
-		 offset < symbols_info.base + symbols_info.size)
-		section = &symbols_info;
-	else if (offset >= lines_info.base &&
-		 offset < lines_info.base + lines_info.size)
-		section = &lines_info;
-	if (!section)
-		return NULL;
-	return section->buffer + (offset - section->base);
-}
-
-CORE_ADDR
-dst_get_addr(int section, long offset)
-{
-	if (!section_table || !section)
-		return 0;
-	return DST_section_tab(section_table).section_base[section-1] + offset;
-}
-
-CORE_ADDR
-dst_sym_addr(ref)
-    dst_sect_ref_t *ref;
-{
-	if (!section_table || !ref->sect_index)
-		return 0;
-	return DST_section_tab(section_table).section_base[ref->sect_index-1]
-		+ ref->sect_offset;
-}
-
-static struct type *
-create_new_type(objfile)
-    struct objfile *objfile;
-{
-	struct type *type;
-
-	type = (struct type *)
-		obstack_alloc (&objfile->symbol_obstack, sizeof (struct type));
-	memset(type, 0, sizeof(struct type));
-	return type;
-}
-
-static struct symbol *
-create_new_symbol(objfile, name)
-    struct objfile *objfile;
-    char *name;
-{
-	struct symbol *sym = (struct symbol *)
-	       obstack_alloc (&objfile->symbol_obstack, sizeof (struct symbol));
-	memset (sym, 0, sizeof (struct symbol));
-	SYMBOL_NAME (sym) = obsavestring (name, strlen (name),
-					  &objfile->symbol_obstack);
-	SYMBOL_VALUE (sym) = 0;
-	SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
-
-	SYMBOL_CLASS (sym) = LOC_BLOCK;
-	return sym;
-};
-
-static struct type *
-decode_dst_type PARAMS ((struct objfile *, dst_rec_ptr_t));
-
-static struct type *
-decode_type_desc(objfile, type_desc, base)
-	struct objfile *objfile;
-	dst_type_t *type_desc;
-	dst_rec_ptr_t base;
-{
-	struct type *type;
-	dst_rec_ptr_t entry;
-	if (type_desc->std_type.user_defined_type)
-	{
-		entry = (dst_rec_ptr_t) DST_OFFSET(base,
-					dst_user_type_offset(*type_desc));
-		type = decode_dst_type(objfile, entry);
-	}
-	else
-	{
-		switch(type_desc->std_type.dtc)
-		{
-		case dst_int8_type:
-			type = builtin_type_signed_char;
-			break;
-		case dst_int16_type:
-			type = builtin_type_short;
-			break;
-		case dst_int32_type:
-			type = builtin_type_long;
-			break;
-		case dst_uint8_type:
-			type = builtin_type_unsigned_char;
-			break;
-		case dst_uint16_type:
-			type = builtin_type_unsigned_short;
-			break;
-		case dst_uint32_type:
-			type = builtin_type_unsigned_long;
-			break;
-		case dst_real32_type:
-			type = builtin_type_float;
-			break;
-		case dst_real64_type:
-			type = builtin_type_double;
-			break;
-		case dst_complex_type:
-			type = builtin_type_complex;
-			break;
-		case dst_dcomplex_type:
-			type = builtin_type_double_complex;
-			break;
-		case dst_bool8_type:
-			type = builtin_type_char;
-			break;
-		case dst_bool16_type:
-			type = builtin_type_short;
-			break;
-		case dst_bool32_type:
-			type = builtin_type_long;
-			break;
-		case dst_char_type:
-			type = builtin_type_char;
-			break;
-		/* The next few are more complex. I will take care
-		 * of them properly at a later point.
-		 */
-		case dst_string_type:
-			type = builtin_type_void;
-			break;
-		case dst_ptr_type:
-			type = builtin_type_void;
-			break;
-		case dst_set_type:
-			type = builtin_type_void;
-			break;
-		case dst_proc_type:
-			type = builtin_type_void;
-			break;
-		case dst_func_type:
-			type = builtin_type_void;
-			break;
-		/* Back tto some ordinary ones */
-		case dst_void_type:
-			type = builtin_type_void;
-			break;
-		case dst_uchar_type:
-			type = builtin_type_unsigned_char;
-			break;
-		default:
-			type = builtin_type_void;
-			break;
-		}
-	} 
-	return type;
-}
-
-struct	structure_list
-    {
-    struct structure_list *next;
-    struct type *type;
-    };
-
-static struct structure_list *struct_list = NULL;
-
-static struct type *
-find_dst_structure(name)
-    char *name;
-{
-	struct structure_list *element;
-
-	for (element = struct_list; element; element = element->next)
-		if (!strcmp(name, TYPE_NAME(element->type)))
-			return element->type;
-	return NULL;
-}
-
-
-static struct type *
-decode_dst_structure(objfile, entry, code, version)
-    struct objfile *objfile;
-    dst_rec_ptr_t entry;
-    int code;
-    int version;
-{
-	struct	type *type, *child_type;
-	char	*struct_name;
-	char	*name, *field_name;
-	int	i;
-	int	fieldoffset, fieldsize;
-	dst_type_t type_desc;
-	struct structure_list *element;
-
-	struct_name = DST_OFFSET(entry, DST_record(entry).noffset);
-	name = concat( (code == TYPE_CODE_UNION)?"union ":"struct ",
-			struct_name, NULL);
-	type = find_dst_structure(name);
-	if (type)
-	{
-		free((PTR) name);
-		return type;
-	}
-	type = create_new_type(objfile);
-	TYPE_NAME(type) = obstack_copy0 (&objfile->symbol_obstack,
-						name, strlen(name));
-	free((PTR) name);
-	TYPE_CODE(type) = code;
-	TYPE_LENGTH(type) = DST_record(entry).size;
-	TYPE_NFIELDS(type) = DST_record(entry).nfields;
-	TYPE_FIELDS(type) = (struct field *)
-	       obstack_alloc (&objfile->symbol_obstack, sizeof (struct field) *
-					DST_record(entry).nfields);
-	fieldoffset = fieldsize = 0;
-	INIT_CPLUS_SPECIFIC(type);
-	element = (struct structure_list *)
-				xmalloc(sizeof(struct structure_list));
-	element->type = type;
-	element->next = struct_list;
-	struct_list = element;
-	for (i = 0; i < DST_record(entry).nfields; i++)
-	{
-		switch (version)
-		{
-		case 2:
-			field_name = DST_OFFSET(entry,
-					DST_record(entry).f.ofields[i].noffset);
-			fieldoffset = DST_record(entry).f.ofields[i].foffset*8 +
-				      DST_record(entry).f.ofields[i].bit_offset;
-			fieldsize = DST_record(entry).f.ofields[i].size;
-			type_desc = DST_record(entry).f.ofields[i].type_desc;
-			break;
-		case 1:
-			field_name = DST_OFFSET(entry,
-					DST_record(entry).f.fields[i].noffset);
-			type_desc = DST_record(entry).f.fields[i].type_desc;
-			switch(DST_record(entry).f.fields[i].f.field_loc.format_tag)
-			{
-			case dst_field_byte:
-				fieldoffset = DST_record(entry).f.
-					fields[i].f.field_byte.offset * 8;
-				fieldsize = -1;
-				break;
-			case dst_field_bit:
-				fieldoffset = DST_record(entry).f.
-					fields[i].f.field_bit.byte_offset * 8 +
-					      DST_record(entry).f.
-					fields[i].f.field_bit.bit_offset;
-				fieldsize = DST_record(entry).f.
-					fields[i].f.field_bit.nbits;
-				break;
-			case dst_field_loc:
-				fieldoffset += fieldsize;
-				fieldsize = -1;
-				break;
-			}
-			break;
-		case 0:
-			field_name = DST_OFFSET(entry,
-					DST_record(entry).f.sfields[i].noffset);
-			fieldoffset = DST_record(entry).f.sfields[i].foffset;
-			type_desc = DST_record(entry).f.sfields[i].type_desc;
-			if (i < DST_record(entry).nfields - 1)
-				fieldsize = DST_record(entry).f.sfields[i+1].foffset;
-			else
-				fieldsize = DST_record(entry).size;
-			fieldsize -= fieldoffset;
-			fieldoffset *= 8;
-			fieldsize *= 8;
-		}
-		TYPE_FIELDS(type)[i].name = 
-			obstack_copy0 (&objfile->symbol_obstack,
-						field_name, strlen(field_name));
-		TYPE_FIELDS(type)[i].type = decode_type_desc(objfile,
-						&type_desc,
-						entry);
-		if (fieldsize == -1)
-			fieldsize = TYPE_LENGTH(TYPE_FIELDS(type)[i].type) *
-					8;
-		TYPE_FIELDS(type)[i].bitsize = fieldsize;
-		TYPE_FIELDS(type)[i].bitpos = fieldoffset;
-	}
-	return type;
-}
-
-static struct type *
-decode_dst_type(objfile, entry)
-    struct objfile *objfile;
-    dst_rec_ptr_t entry;
-{
-	struct type *child_type, *type, *range_type, *index_type;
-
-	switch(entry->rec_type)
-	{
-	case dst_typ_var:
-		return decode_type_desc(objfile,
-				 	&DST_var(entry).type_desc,
-					entry);
-		break;
-	case dst_typ_variable:
-		return decode_type_desc(objfile,
-				 	&DST_variable(entry).type_desc,
-					entry);
-		break;
-	case dst_typ_short_rec:
-		return decode_dst_structure(objfile, entry, TYPE_CODE_STRUCT,0);
-	case dst_typ_short_union:
-		return decode_dst_structure(objfile, entry, TYPE_CODE_UNION, 0);
-	case dst_typ_union:
-		return decode_dst_structure(objfile, entry, TYPE_CODE_UNION, 1);
-	case dst_typ_record:
-		return decode_dst_structure(objfile, entry, TYPE_CODE_STRUCT,1);
-	case dst_typ_old_union:
-		return decode_dst_structure(objfile, entry, TYPE_CODE_UNION, 2);
-	case dst_typ_old_record:
-		return decode_dst_structure(objfile, entry, TYPE_CODE_STRUCT,2);
-	case dst_typ_pointer:
-		return make_pointer_type(
-				decode_type_desc(objfile,
-					&DST_pointer(entry).type_desc,
-					entry),
-				NULL);
-	case dst_typ_array:
-		child_type = decode_type_desc(objfile,
-					     &DST_pointer(entry).type_desc,
-					     entry);
-		index_type = lookup_fundamental_type(objfile,
-							FT_INTEGER);
-		range_type = create_range_type ((struct type *) NULL,
-				index_type, DST_array(entry).lo_bound,
-					DST_array(entry).hi_bound);
-		return create_array_type ((struct type *) NULL, child_type,
-					range_type);
-	case dst_typ_alias:
-		return decode_type_desc(objfile,
-					&DST_alias(entry).type_desc,
-					entry);
-	default:
-		return builtin_type_int;
-	}
-}
-
-struct	symbol_list {
-	struct symbol_list *next;
-	struct symbol *symbol;
-};
-
-static	struct	symbol_list *dst_global_symbols = NULL;
-static	int	total_globals = 0;
-
-static void
-decode_dst_locstring(locstr, sym)
-    char *locstr;
-    struct symbol *sym;
-{
-	dst_loc_entry_t *entry, *next_entry;
-	CORE_ADDR	temp;
-	int count = 0;
-
-	while(1)
-	{
-		if (count++ == 100)
-		{
-			fprintf_unfiltered(gdb_stderr, "Error reading locstring\n");
-			break;
-		}
-		entry = (dst_loc_entry_t *) locstr;
-		next_entry = (dst_loc_entry_t *) (locstr + 1);
-		switch (entry->header.code)
-		{
-		case dst_lsc_end:	/* End of string */
-			return;
-		case dst_lsc_indirect:/* Indirect through previous. Arg == 6 */
-					/* Or register ax x == arg */
-			if (entry->header.arg < 6)
-			{
-				SYMBOL_CLASS(sym) = LOC_REGISTER;
-				SYMBOL_VALUE(sym) = entry->header.arg + 8;
-			}
-			/* We predict indirects */
-			locstr++;
-			break;
-		case dst_lsc_dreg:
-			SYMBOL_CLASS(sym) = LOC_REGISTER;
-			SYMBOL_VALUE(sym) = entry->header.arg;
-			locstr++;
-			break;
-		case dst_lsc_section:/* Section (arg+1) */
-			SYMBOL_VALUE(sym) = dst_get_addr(entry->header.arg+1, 0);
-			locstr++;
-			break;
-		case dst_lsc_sec_byte: /* Section (next_byte+1) */
-			SYMBOL_VALUE(sym) = dst_get_addr(locstr[1]+1, 0);
-			locstr+=2;
-			break;
-		case dst_lsc_add:	/* Add (arg+1)*2 */
-		case dst_lsc_sub:	/* Subtract (arg+1)*2 */
-			temp = (entry->header.arg + 1) * 2;
-			locstr++;
-			if (*locstr == dst_multiply_256)
-			{
-				temp <<= 8;
-				locstr++;
-			}
-			switch(entry->header.code)
-			{
-			case dst_lsc_add:
-				if (SYMBOL_CLASS(sym) == LOC_LOCAL)
-					SYMBOL_CLASS(sym) = LOC_ARG;
-				SYMBOL_VALUE(sym) += temp;
-				break;
-			case dst_lsc_sub:
-				SYMBOL_VALUE(sym) -= temp;
-				break;
-			}
-			break;
-		case dst_lsc_add_byte:
-		case dst_lsc_sub_byte:
-			switch (entry->header.arg & 0x03)
-			{
-			case 1:
-				temp = (unsigned char) locstr[1];
-				locstr += 2;
-				break;
-			case 2:
-				temp = * (unsigned short *) (locstr + 1);
-				locstr += 3;
-				break;
-			case 3:
-				temp = * (unsigned long *) (locstr + 1);
-				locstr += 5;
-				break;
-			}
-			if (*locstr == dst_multiply_256)
-			{
-				temp <<= 8;
-				locstr++;
-			}
-			switch(entry->header.code)
-			{
-			case dst_lsc_add_byte:
-				if (SYMBOL_CLASS(sym) == LOC_LOCAL)
-					SYMBOL_CLASS(sym) = LOC_ARG;
-				SYMBOL_VALUE(sym) += temp;
-				break;
-			case dst_lsc_sub_byte:
-				SYMBOL_VALUE(sym) -= temp;
-				break;
-			}
-			break;
-		case dst_lsc_sbreg:	/* Stack base register (frame pointer). Arg==0*/
-			if (next_entry->header.code != dst_lsc_indirect)
-			{
-				SYMBOL_VALUE(sym) = 0;
-				SYMBOL_CLASS(sym) = LOC_STATIC;
-				return;
-			}
-			SYMBOL_VALUE(sym) = 0;
-			SYMBOL_CLASS(sym) = LOC_LOCAL;
-			locstr++;
-			break;
-		default:
-			SYMBOL_VALUE(sym) = 0;
-			SYMBOL_CLASS(sym) = LOC_STATIC;
-			return;
-		}
-	}
-}
-
-static struct symbol_list *
-process_dst_symbols(objfile, entry, name, nsyms_ret)
-    struct objfile *objfile;
-    dst_rec_ptr_t entry;
-    char *name;
-    int *nsyms_ret;
-{
-	struct symbol_list *list = NULL, *element;
-	struct symbol *sym;
-	char *symname;
-	int nsyms = 0;
-	char *location;
-	long line;
-	dst_type_t symtype;
-	struct type *type;
-	dst_var_attr_t attr;
-	dst_var_loc_t loc_type;
-	unsigned loc_index;
-	long	loc_value;
-
-	if (!entry)
-	{
-		*nsyms_ret = 0;
-		return NULL;
-	}
-	location = (char *) entry;
-	while (NEXT_SYM(&location, &entry) &&
-	       entry->rec_type != dst_typ_end_scope)
-	{
-		if (entry->rec_type == dst_typ_var)
-		{
-			if (DST_var(entry).short_locs)
-			{
-				loc_type = DST_var(entry).locs.shorts[0].loc_type;
-				loc_index = DST_var(entry).locs.shorts[0].loc_index;
-				loc_value = DST_var(entry).locs.shorts[0].location;
-			}
-			else
-			{
-				loc_type = DST_var(entry).locs.longs[0].loc_type;
-				loc_index = DST_var(entry).locs.longs[0].loc_index;
-				loc_value = DST_var(entry).locs.longs[0].location;
-			}
-			if (loc_type == dst_var_loc_external)
-				continue;
-			symname = DST_OFFSET(entry, DST_var(entry).noffset);
-			line = DST_var(entry).src_loc.line_number;
-			symtype = DST_var(entry).type_desc;
-			attr = DST_var(entry).attributes;
-		}
-		else if (entry->rec_type == dst_typ_variable)
-		{
-			symname = DST_OFFSET(entry,
-						DST_variable(entry).noffset);
-			line = DST_variable(entry).src_loc.line_number;
-			symtype = DST_variable(entry).type_desc;
-			attr = DST_variable(entry).attributes;
-		}
-		else
-		{
-			continue;
-		}
-		if (symname && name && !strcmp(symname, name))
-			/* It's the function return value */
-			continue;
-		sym = create_new_symbol(objfile, symname);
-
-		if ((attr & (1<<dst_var_attr_global)) ||
-		    (attr & (1<<dst_var_attr_static)))
-			SYMBOL_CLASS(sym) = LOC_STATIC;
-		else
-			SYMBOL_CLASS(sym) = LOC_LOCAL;
-		SYMBOL_LINE(sym) = line;
-		SYMBOL_TYPE(sym) = decode_type_desc(objfile, &symtype,
-						entry);
-		SYMBOL_VALUE(sym) = 0;
-		switch (entry->rec_type)
-		{
-		case dst_typ_var:
-			switch(loc_type)
-			{
-			case dst_var_loc_abs:
-				SYMBOL_VALUE_ADDRESS(sym) = loc_value;
-				break;
-			case dst_var_loc_sect_off:
-			case dst_var_loc_ind_sect_off: /* What is this? */
-				SYMBOL_VALUE_ADDRESS(sym) = dst_get_addr(
-						loc_index,
-						loc_value);
-				break;
-			case dst_var_loc_ind_reg_rel: /* What is this? */
-			case dst_var_loc_reg_rel:
-				/* If it isn't fp relative, specify the
-				 * register it's relative to.
-				 */
-				if (loc_index)
-				{
-					sym->aux_value.basereg = loc_index;
-				}
-				SYMBOL_VALUE(sym) = loc_value;
-				if (loc_value > 0 &&
-				    SYMBOL_CLASS(sym) == LOC_BASEREG)
-					SYMBOL_CLASS(sym) = LOC_BASEREG_ARG;
-				break;
-			case dst_var_loc_reg:
-				SYMBOL_VALUE(sym) = loc_index;
-				SYMBOL_CLASS(sym) = LOC_REGISTER;
-				break;
-			}
-			break;
-		case dst_typ_variable:
-			/* External variable..... don't try to interpret
-			 * its nonexistant locstring.
-			 */
-			if (DST_variable(entry).loffset == -1)
-				continue;
-			decode_dst_locstring(DST_OFFSET(entry,
-						DST_variable(entry).loffset),
-					     sym);
-		}
-		element = (struct symbol_list *)
-				xmalloc(sizeof(struct symbol_list));
-		
-		if (attr & (1<<dst_var_attr_global))
-		{
-			element->next = dst_global_symbols;
-			dst_global_symbols = element;
-			total_globals++;
-		}
-		else
-		{
-			element->next = list;
-			list = element;
-			nsyms++;
-		}
-		element->symbol = sym;
-	}
-	*nsyms_ret = nsyms;
-	return list;
-}
-
-
-static struct symbol *
-process_dst_function(objfile, entry, name, address)
-    struct objfile *objfile;
-    dst_rec_ptr_t entry;
-    char *name;
-    CORE_ADDR address;
-{
-	struct	symbol *sym;
-	struct	type *type, *ftype;
-	dst_rec_ptr_t sym_entry, typ_entry;
-	char *location;
-	struct symbol_list *element;
-
-	type = builtin_type_int;
-	sym = create_new_symbol(objfile, name);
-	SYMBOL_CLASS(sym) = LOC_BLOCK;
-
-	if (entry)
-	{
-		location = (char *) entry;
-		do
-		{
-			NEXT_SYM(&location, &sym_entry);
-		} while (sym_entry && sym_entry->rec_type != dst_typ_signature);
-
-		if (sym_entry)
-		{
-			SYMBOL_LINE(sym) =
-				DST_signature(sym_entry).src_loc.line_number;
-			if (DST_signature(sym_entry).result)
-			{
-				typ_entry = (dst_rec_ptr_t)
-					    DST_OFFSET(sym_entry,
-					    DST_signature(sym_entry).result);
-				type = decode_dst_type(objfile, typ_entry);
-			}
-		}
-	}
-
-	if (!type->function_type)
-	{
-		ftype = create_new_type(objfile);
-		type->function_type = ftype;
-		ftype->target_type = type;
-		ftype->code = TYPE_CODE_FUNC;
-	}
-	SYMBOL_TYPE(sym) = type->function_type;
-
-	/* Now add ourselves to the global symbols list */
-	element = (struct symbol_list *)
-			xmalloc(sizeof(struct symbol_list));
-
-	element->next = dst_global_symbols;
-	dst_global_symbols = element;
-	total_globals++;
-	element->symbol = sym;
-
-	return sym;
-}
-
-static struct block *
-process_dst_block(objfile, entry)
-    struct objfile *objfile;
-    dst_rec_ptr_t entry;
-{
-	struct	block	*block;
-	struct	symbol	*function = NULL;
-	CORE_ADDR address;
-	long	size;
-	char	*name;
-	dst_rec_ptr_t child_entry, symbol_entry;
-	struct block *child_block;
-	int	total_symbols = 0;
-	char	fake_name[20];
-	static	long	fake_seq = 0;
-	struct symbol_list *symlist, *nextsym;
-	int	symnum;
-
-	if (DST_block(entry).noffset)
-		name = DST_OFFSET(entry, DST_block(entry).noffset);
-	else
-		name = NULL;
-	if (DST_block(entry).n_of_code_ranges)
-	{
-		address = dst_sym_addr(
-				&DST_block(entry).code_ranges[0].code_start);
-		size = DST_block(entry).code_ranges[0].code_size;
-	}
-	else
-	{
-		address = -1;
-		size = 0;
-	}
-	symbol_entry = (dst_rec_ptr_t) get_sec_ref(&DST_block(entry).symbols_start);
-	switch(DST_block(entry).block_type)
-	{
-	/* These are all really functions. Even the "program" type.
-	 * This is because the Apollo OS was written in Pascal, and
-	 * in Pascal, the main procedure is described as the Program.
-	 * Cute, huh?
-	 */
-	case dst_block_procedure:
-	case dst_block_function:
-	case dst_block_subroutine:
-	case dst_block_program:
-		prim_record_minimal_symbol(name, address, mst_text, objfile);
-		function = process_dst_function(
-			objfile,
-			symbol_entry,
-			name,
-			address);
-		enter_all_lines(get_sec_ref(&DST_block(entry).code_ranges[0].lines_start), address);
-		break;
-	case dst_block_block_data:
-		break;
-
-	default:
-		/* GDB has to call it something, and the module name
-		 * won't cut it
-		 */
-		sprintf(fake_name, "block_%08lx", fake_seq++);
-		function = process_dst_function(
-			objfile, NULL, fake_name, address);
-		break;
-	}
-	symlist = process_dst_symbols(objfile, symbol_entry,
-					name, &total_symbols);
-	block = (struct block *)
-	    obstack_alloc (&objfile->symbol_obstack,
-				sizeof (struct block) +
-				(total_symbols - 1) * sizeof (struct symbol *));
-
-	symnum = 0;
-	while (symlist)
-	{
-		nextsym = symlist->next;
-
-		block->sym[symnum] = symlist->symbol;
-
-		free((PTR) symlist);
-		symlist = nextsym;
-		symnum++;
-	}
-	BLOCK_NSYMS (block) = total_symbols;
-	BLOCK_START (block) = address;
-	BLOCK_END (block) = address + size;
-	BLOCK_SUPERBLOCK (block) = 0;
-	if (function)
-	{
-		SYMBOL_BLOCK_VALUE (function) = block;
-		BLOCK_FUNCTION (block) = function;
-	}
-	else
-		BLOCK_FUNCTION (block) = 0;
-
-	if (DST_block(entry).child_block_off)
-	{
-		child_entry = (dst_rec_ptr_t) DST_OFFSET(entry,
-					DST_block(entry).child_block_off);
-		while (child_entry)
-		{
-			child_block = process_dst_block(objfile, child_entry);
-			if (child_block)
-			{
-				if (BLOCK_START(child_block) <
-				     BLOCK_START(block) ||
-				    BLOCK_START(block) == -1)
-					BLOCK_START(block) =
-					     BLOCK_START(child_block);
-				if (BLOCK_END(child_block) >
-				     BLOCK_END(block) ||
-				    BLOCK_END(block) == -1)
-					BLOCK_END(block) =
-					     BLOCK_END(child_block);
-				BLOCK_SUPERBLOCK (child_block) = block;
-			}
-			if (DST_block(child_entry).sibling_block_off)
-				child_entry = (dst_rec_ptr_t) DST_OFFSET(
-					child_entry,
-					DST_block(child_entry).sibling_block_off);
-			else
-				child_entry = NULL;
-		}
-	}
-	record_pending_block (objfile, block, NULL);
-	return block;
-}
-
-
-static void
-read_dst_symtab (objfile)
-     struct objfile *objfile;
-{
-	char	*buffer;
-	dst_rec_ptr_t entry, file_table, root_block;
-	char	*source_file;
-	struct	block *block, *global_block;
-	int	symnum;
-	struct symbol_list *nextsym;
-	int	module_num = 0;
-	struct	structure_list *element;
-
-	current_objfile = objfile;
-	buffer = blocks_info.buffer;
-	while (NEXT_BLK(&buffer, &entry))
-	{
-		if (entry->rec_type == dst_typ_comp_unit)
-		{
-			file_table = (dst_rec_ptr_t) DST_OFFSET(entry,
-					DST_comp_unit(entry).file_table);
-			section_table = (dst_rec_ptr_t) DST_OFFSET(entry,
-					DST_comp_unit(entry).section_table);
-			root_block = (dst_rec_ptr_t) DST_OFFSET(entry,
-					DST_comp_unit(entry).root_block_offset);
-			source_file = DST_OFFSET(file_table,
-					DST_file_tab(file_table).files[0].noffset);
-			/* Point buffer to the start of the next comp_unit */
-			buffer = DST_OFFSET(entry,
-					DST_comp_unit(entry).data_size);
-			dst_start_symtab();
-
-			block = process_dst_block(objfile, root_block);
-
-			global_block = (struct block *)
-				    obstack_alloc (&objfile->symbol_obstack,
-					sizeof (struct block) +
-					(total_globals - 1) *
-					sizeof (struct symbol *));
-			BLOCK_NSYMS(global_block) = total_globals;
-			for (symnum = 0; symnum < total_globals; symnum++)
-			{
-				nextsym = dst_global_symbols->next;
-
-				global_block->sym[symnum] =
-						dst_global_symbols->symbol;
-
-				free((PTR) dst_global_symbols);
-				dst_global_symbols = nextsym;
-			}
-			dst_global_symbols = NULL;
-			total_globals = 0;
-			BLOCK_FUNCTION(global_block) = 0;
-			BLOCK_START(global_block) = BLOCK_START(block);
-			BLOCK_END(global_block) = BLOCK_END(block);
-			BLOCK_SUPERBLOCK(global_block) = 0;
-			BLOCK_SUPERBLOCK(block) = global_block;
-			record_pending_block (objfile, global_block, NULL);
-
-			complete_symtab(source_file,
-					BLOCK_START(block), 
-					BLOCK_END(block) - BLOCK_START(block));
-			module_num++;
-			dst_end_symtab(objfile);
-		}
-	}
-	if (module_num)
-		prim_record_minimal_symbol("<end_of_program>",
-				BLOCK_END(block), mst_text, objfile);
-	/* One more faked symbol to make sure nothing can ever run off the
-	 * end of the symbol table. This one represents the end of the
-	 * text space. It used to be (CORE_ADDR) -1 (effectively the highest
-	 * int possible), but some parts of gdb treated it as a signed
-	 * number and failed comparisons. We could equally use 7fffffff,
-	 * but no functions are ever mapped to an address higher than
-	 * 40000000
-	 */
-	prim_record_minimal_symbol("<end_of_text>",
-				(CORE_ADDR) 0x40000000,
-				mst_text, objfile);
-	while (struct_list)
-	{
-		element = struct_list;
-		struct_list = element->next;
-		free((PTR) element);
-	}
-}
-
-
-/* Support for line number handling */
-static char *linetab = NULL;
-static long linetab_offset;
-static unsigned long linetab_size;
-
-/* Read in all the line numbers for fast lookups later.  Leave them in
-   external (unswapped) format in memory; we'll swap them as we enter
-   them into GDB's data structures.  */
-static int
-init_one_section(chan, secinfo)
-    int chan;
-    dst_sec *secinfo;
-{
-  if (secinfo->size == 0
-      || lseek(chan, secinfo->position, 0) == -1
-      || (secinfo->buffer = xmalloc(secinfo->size)) == NULL
-      || myread(chan, secinfo->buffer, secinfo->size) == -1)
-	return 0;
-  else
-	return 1;
-}
- 
-static int
-init_dst_sections (chan)
-    int chan;
-{
-
-  if (!init_one_section(chan, &blocks_info) ||
-      !init_one_section(chan, &lines_info) ||
-      !init_one_section(chan, &symbols_info))
-    return -1;
-  else
-    return 0;
-}
-
-/* Fake up support for relocating symbol addresses.  FIXME.  */
-
-struct section_offsets dst_symfile_faker = {0};
-
-struct section_offsets *
-dst_symfile_offsets (objfile, addr)
-     struct objfile *objfile;
-     CORE_ADDR addr;
-{
-  objfile->num_sections = 1;
-  return &dst_symfile_faker;
-}
-
-/* Register our ability to parse symbols for DST BFD files */
-
-static struct sym_fns dst_sym_fns =
-{
-  /* FIXME: Can this be integrated with coffread.c?  If not, should it be
-     a separate flavour like ecoff?  */
-  (enum bfd_flavour)-2,
-
-  dst_new_init,		/* sym_new_init: init anything gbl to entire symtab */
-  dst_symfile_init,	/* sym_init: read initial info, setup for sym_read() */
-  dst_symfile_read,	/* sym_read: read a symbol file into symtab */
-  dst_symfile_finish,	/* sym_finish: finished with file, cleanup */
-  dst_symfile_offsets, /* sym_offsets:  xlate external to internal form */
-  NULL			/* next: pointer to next struct sym_fns */
-};
-
-void
-_initialize_dstread ()
-{
-  add_symtab_fns(&dst_sym_fns);
-}