Initial creation of sourceware repositorygdb-4_18-branchpoint

1 files changed, 2381 insertions, 0 deletions

diff --git a/gdb/hp-psymtab-read.c b/gdb/hp-psymtab-read.c
new file mode 100644
index 0000000..5926ada
--- /dev/null
+++ b/gdb/hp-psymtab-read.c
@@ -0,0 +1,2381 @@
+/* Read hp debug symbols and convert to internal format, for GDB.
+   Copyright 1993, 1996, 1998, 1999 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.
+
+   Written by the Center for Software Science at the University of Utah
+   and by Cygnus Support.  */
+
+/* Common include file for hp_symtab_read.c and hp_psymtab_read.c.
+   This has nested includes of a bunch of stuff. */
+#include "hpread.h"
+#include "demangle.h"
+
+/* To generate dumping code, uncomment this define.  The dumping
+   itself is controlled by routine-local statics called "dumping". */
+/* #define DUMPING         1 */
+
+/* To use the quick look-up tables, uncomment this define. */
+#define QUICK_LOOK_UP      1
+
+/* To call PXDB to process un-processed files, uncomment this define. */
+#define USE_PXDB           1
+
+/* Forward procedure declarations */
+
+void hpread_symfile_init
+  PARAMS ((struct objfile *));
+
+void
+do_pxdb PARAMS ((bfd *));
+
+void hpread_build_psymtabs
+  PARAMS ((struct objfile *, struct section_offsets *, int));
+
+void hpread_symfile_finish
+  PARAMS ((struct objfile *));
+
+static union dnttentry *hpread_get_gntt
+  PARAMS ((int, struct objfile *));
+
+static unsigned long hpread_get_textlow
+  PARAMS ((int, int, struct objfile *, int));
+
+static struct partial_symtab *hpread_start_psymtab
+  PARAMS ((struct objfile *, struct section_offsets *, char *, CORE_ADDR, int,
+	   struct partial_symbol **, struct partial_symbol **));
+
+static struct partial_symtab *hpread_end_psymtab
+  PARAMS ((struct partial_symtab *, char **, int, int, CORE_ADDR,
+	   struct partial_symtab **, int));
+
+/* End of forward routine declarations */
+
+#ifdef USE_PXDB
+
+/* NOTE use of system files!  May not be portable. */
+
+#define PXDB_SVR4 "/opt/langtools/bin/pxdb"
+#define PXDB_BSD  "/usr/bin/pxdb"
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/* check for the existance of a file, given its full pathname */
+int
+file_exists (filename)
+     char *filename;
+{
+  if (filename)
+    return (access (filename, F_OK) == 0);
+  return 0;
+}
+
+
+/* Translate from the "hp_language" enumeration in hp-symtab.h
+   used in the debug info to gdb's generic enumeration in defs.h. */
+static enum language
+trans_lang (in_lang)
+     enum hp_language in_lang;
+{
+  if (in_lang == HP_LANGUAGE_C)
+    return language_c;
+
+  else if (in_lang == HP_LANGUAGE_CPLUSPLUS)
+    return language_cplus;
+
+  else if (in_lang == HP_LANGUAGE_F77)
+    return language_fortran;
+
+  else
+    return language_unknown;
+}
+
+static char main_string[] = "main";
+
+/* Call PXDB to process our file.
+
+   Approach copied from DDE's "dbgk_run_pxdb".  Note: we
+   don't check for BSD location of pxdb, nor for existance
+   of pxdb itself, etc.
+
+   NOTE: uses system function and string functions directly.
+
+   Return value: 1 if ok, 0 if not */
+int
+hpread_call_pxdb (file_name)
+     char *file_name;
+{
+  char *p;
+  int status;
+  int retval;
+
+  if (file_exists (PXDB_SVR4))
+    {
+      p = malloc (strlen (PXDB_SVR4) + strlen (file_name) + 2);
+      strcpy (p, PXDB_SVR4);
+      strcat (p, " ");
+      strcat (p, file_name);
+
+      warning ("File not processed by pxdb--about to process now.\n");
+      status = system (p);
+
+      retval = (status == 0);
+    }
+  else
+    {
+      warning ("pxdb not found at standard location: /opt/langtools/bin\ngdb will not be able to debug %s.\nPlease install pxdb at the above location and then restart gdb.\nYou can also run pxdb on %s with the command\n\"pxdb %s\" and then restart gdb.", file_name, file_name, file_name);
+
+      retval = 0;
+    }
+  return retval;
+}				/* hpread_call_pxdb */
+
+
+/* Return 1 if the file turns out to need pre-processing
+   by PXDB, and we have thus called PXDB to do this processing
+   and the file therefore needs to be re-loaded.  Otherwise
+   return 0. */
+int
+hpread_pxdb_needed (sym_bfd)
+     bfd *sym_bfd;
+{
+  asection *pinfo_section, *debug_section, *header_section;
+  unsigned int do_pxdb;
+  char *buf;
+  bfd_size_type header_section_size;
+
+  unsigned long tmp;
+  unsigned int pxdbed;
+
+  header_section = bfd_get_section_by_name (sym_bfd, "$HEADER$");
+  if (!header_section)
+    {
+      return 0;			/* No header at all, can't recover... */
+    }
+
+  debug_section = bfd_get_section_by_name (sym_bfd, "$DEBUG$");
+  pinfo_section = bfd_get_section_by_name (sym_bfd, "$PINFO$");
+
+  if (pinfo_section && !debug_section)
+    {
+      /* Debug info with DOC, has different header format. 
+         this only happens if the file was pxdbed and compiled optimized
+         otherwise the PINFO section is not there. */
+      header_section_size = bfd_section_size (objfile->obfd, header_section);
+
+      if (header_section_size == (bfd_size_type) sizeof (DOC_info_PXDB_header))
+	{
+	  buf = alloca (sizeof (DOC_info_PXDB_header));
+
+	  if (!bfd_get_section_contents (sym_bfd,
+					 header_section,
+					 buf, 0,
+					 header_section_size))
+	    error ("bfd_get_section_contents\n");
+
+	  tmp = bfd_get_32 (sym_bfd, (bfd_byte *) (buf + sizeof (int) * 4));
+	  pxdbed = (tmp >> 31) & 0x1;
+
+	  if (!pxdbed)
+	    error ("file debug header info invalid\n");
+	  do_pxdb = 0;
+	}
+
+      else
+	error ("invalid $HEADER$ size in executable \n");
+    }
+
+  else
+    {
+
+      /* this can be three different cases:
+         1. pxdbed and not doc
+         - DEBUG and HEADER sections are there
+         - header is PXDB_header type
+         - pxdbed flag is set to 1
+
+         2. not pxdbed and doc
+         - DEBUG and HEADER  sections are there
+         - header is DOC_info_header type
+         - pxdbed flag is set to 0
+
+         3. not pxdbed and not doc
+         - DEBUG and HEADER sections are there
+         - header is XDB_header type
+         - pxdbed flag is set to 0
+
+         NOTE: the pxdbed flag is meaningful also in the not
+         already pxdb processed version of the header,
+         because in case on non-already processed by pxdb files
+         that same bit in the header would be always zero.
+         Why? Because the bit is the leftmost bit of a word
+         which contains a 'length' which is always a positive value
+         so that bit is never set to 1 (otherwise it would be negative)
+
+         Given the above, we have two choices : either we ignore the
+         size of the header itself and just look at the pxdbed field,
+         or we check the size and then we (for safety and paranoia related
+         issues) check the bit.
+         The first solution is used by DDE, the second by PXDB itself.
+         I am using the second one here, because I already wrote it,
+         and it is the end of a long day.
+         Also, using the first approach would still involve size issues
+         because we need to read in the contents of the header section, and
+         give the correct amount of stuff we want to read to the
+         get_bfd_section_contents function.  */
+
+      /* decide which case depending on the size of the header section.
+         The size is as defined in hp-symtab.h  */
+
+      header_section_size = bfd_section_size (objfile->obfd, header_section);
+
+      if (header_section_size == (bfd_size_type) sizeof (PXDB_header))	/* pxdb and not doc */
+	{
+
+	  buf = alloca (sizeof (PXDB_header));
+	  if (!bfd_get_section_contents (sym_bfd,
+					 header_section,
+					 buf, 0,
+					 header_section_size))
+	    error ("bfd_get_section_contents\n");
+
+	  tmp = bfd_get_32 (sym_bfd, (bfd_byte *) (buf + sizeof (int) * 3));
+	  pxdbed = (tmp >> 31) & 0x1;
+
+	  if (pxdbed)
+	    do_pxdb = 0;
+	  else
+	    error ("file debug header invalid\n");
+	}
+      else			/*not pxdbed and doc OR not pxdbed and non doc */
+	do_pxdb = 1;
+    }
+
+  if (do_pxdb)
+    {
+      return 1;
+    }
+  else
+    {
+      return 0;
+    }
+}				/* hpread_pxdb_needed */
+
+#endif
+
+/* Check whether the file needs to be preprocessed by pxdb. 
+   If so, call pxdb. */
+
+void 
+do_pxdb (sym_bfd)
+     bfd *sym_bfd;
+{
+  /* The following code is HP-specific.  The "right" way of
+     doing this is unknown, but we bet would involve a target-
+     specific pre-file-load check using a generic mechanism. */
+
+  /* This code will not be executed if the file is not in SOM
+     format (i.e. if compiled with gcc) */
+    if (hpread_pxdb_needed (sym_bfd)) 
+      {
+	/*This file has not been pre-processed. Preprocess now */
+	  
+	if (hpread_call_pxdb (sym_bfd->filename))
+	  {
+	    /* The call above has changed the on-disk file, 
+               we can close the file anyway, because the
+	       symbols will be reread in when the target is run */
+	    bfd_close (sym_bfd); 
+	  }
+      }
+}
+
+
+
+#ifdef QUICK_LOOK_UP
+
+/* Code to handle quick lookup-tables follows. */
+
+
+/* Some useful macros */
+#define VALID_FILE(i)   ((i) < pxdb_header_p->fd_entries)
+#define VALID_MODULE(i) ((i) < pxdb_header_p->md_entries)
+#define VALID_PROC(i)   ((i) < pxdb_header_p->pd_entries)
+#define VALID_CLASS(i)  ((i) < pxdb_header_p->cd_entries)
+
+#define FILE_START(i)    (qFD[i].adrStart)
+#define MODULE_START(i) (qMD[i].adrStart)
+#define PROC_START(i)    (qPD[i].adrStart)
+
+#define FILE_END(i)   (qFD[i].adrEnd)
+#define MODULE_END(i) (qMD[i].adrEnd)
+#define PROC_END(i)   (qPD[i].adrEnd)
+
+#define FILE_ISYM(i)   (qFD[i].isym)
+#define MODULE_ISYM(i) (qMD[i].isym)
+#define PROC_ISYM(i)   (qPD[i].isym)
+
+#define VALID_CURR_FILE    (curr_fd < pxdb_header_p->fd_entries)
+#define VALID_CURR_MODULE  (curr_md < pxdb_header_p->md_entries)
+#define VALID_CURR_PROC    (curr_pd < pxdb_header_p->pd_entries)
+#define VALID_CURR_CLASS   (curr_cd < pxdb_header_p->cd_entries)
+
+#define CURR_FILE_START     (qFD[curr_fd].adrStart)
+#define CURR_MODULE_START   (qMD[curr_md].adrStart)
+#define CURR_PROC_START     (qPD[curr_pd].adrStart)
+
+#define CURR_FILE_END    (qFD[curr_fd].adrEnd)
+#define CURR_MODULE_END  (qMD[curr_md].adrEnd)
+#define CURR_PROC_END    (qPD[curr_pd].adrEnd)
+
+#define CURR_FILE_ISYM    (qFD[curr_fd].isym)
+#define CURR_MODULE_ISYM  (qMD[curr_md].isym)
+#define CURR_PROC_ISYM    (qPD[curr_pd].isym)
+
+#define TELL_OBJFILE                                      \
+            do {                                          \
+               if( !told_objfile ) {                      \
+                   told_objfile = 1;                      \
+                   warning ("\nIn object file \"%s\":\n", \
+                            objfile->name);               \
+               }                                          \
+            } while (0)
+
+
+
+/* Keeping track of the start/end symbol table (LNTT) indices of
+   psymtabs created so far */
+
+typedef struct
+  {
+    int start;
+    int end;
+  }
+pst_syms_struct;
+
+static pst_syms_struct *pst_syms_array = 0;
+
+static pst_syms_count = 0;
+static pst_syms_size = 0;
+
+/* used by the TELL_OBJFILE macro */
+static boolean told_objfile = 0;
+
+/* Set up psymtab symbol index stuff */
+static void
+init_pst_syms ()
+{
+  pst_syms_count = 0;
+  pst_syms_size = 20;
+  pst_syms_array = (pst_syms_struct *) xmalloc (20 * sizeof (pst_syms_struct));
+}
+
+/* Clean up psymtab symbol index stuff */
+static void
+clear_pst_syms ()
+{
+  pst_syms_count = 0;
+  pst_syms_size = 0;
+  free (pst_syms_array);
+  pst_syms_array = 0;
+}
+
+/* Add information about latest psymtab to symbol index table */
+static void
+record_pst_syms (start_sym, end_sym)
+     int start_sym;
+     int end_sym;
+{
+  if (++pst_syms_count > pst_syms_size)
+    {
+      pst_syms_array = (pst_syms_struct *) xrealloc (pst_syms_array,
+			      2 * pst_syms_size * sizeof (pst_syms_struct));
+      pst_syms_size *= 2;
+    }
+  pst_syms_array[pst_syms_count - 1].start = start_sym;
+  pst_syms_array[pst_syms_count - 1].end = end_sym;
+}
+
+/* Find a suitable symbol table index which can serve as the upper
+   bound of a psymtab that starts at INDEX
+
+   This scans backwards in the psymtab symbol index table to find a
+   "hole" in which the given index can fit.  This is a heuristic!!
+   We don't search the entire table to check for multiple holes,
+   we don't care about overlaps, etc. 
+
+   Return 0 => not found */
+static int
+find_next_pst_start (index)
+     int index;
+{
+  int i;
+
+  for (i = pst_syms_count - 1; i >= 0; i--)
+    if (pst_syms_array[i].end <= index)
+      return (i == pst_syms_count - 1) ? 0 : pst_syms_array[i + 1].start - 1;
+
+  if (pst_syms_array[0].start > index)
+    return pst_syms_array[0].start - 1;
+
+  return 0;
+}
+
+
+
+/* Utility functions to find the ending symbol index for a psymtab */
+
+/* Find the next file entry that begins beyond INDEX, and return
+   its starting symbol index - 1.
+   QFD is the file table, CURR_FD is the file entry from where to start,
+   PXDB_HEADER_P as in hpread_quick_traverse (to allow macros to work).
+
+   Return 0 => not found */
+static int
+find_next_file_isym (index, qFD, curr_fd, pxdb_header_p)
+     int index;
+     quick_file_entry *qFD;
+     int curr_fd;
+     PXDB_header_ptr pxdb_header_p;
+{
+  while (VALID_CURR_FILE)
+    {
+      if (CURR_FILE_ISYM >= index)
+	return CURR_FILE_ISYM - 1;
+      curr_fd++;
+    }
+  return 0;
+}
+
+/* Find the next procedure entry that begins beyond INDEX, and return
+   its starting symbol index - 1.
+   QPD is the procedure table, CURR_PD is the proc entry from where to start,
+   PXDB_HEADER_P as in hpread_quick_traverse (to allow macros to work).
+
+   Return 0 => not found */
+static int
+find_next_proc_isym (index, qPD, curr_pd, pxdb_header_p)
+     int index;
+     quick_procedure_entry *qPD;
+     int curr_pd;
+     PXDB_header_ptr pxdb_header_p;
+{
+  while (VALID_CURR_PROC)
+    {
+      if (CURR_PROC_ISYM >= index)
+	return CURR_PROC_ISYM - 1;
+      curr_pd++;
+    }
+  return 0;
+}
+
+/* Find the next module entry that begins beyond INDEX, and return
+   its starting symbol index - 1.
+   QMD is the module table, CURR_MD is the modue entry from where to start,
+   PXDB_HEADER_P as in hpread_quick_traverse (to allow macros to work).
+
+   Return 0 => not found */
+static int
+find_next_module_isym (index, qMD, curr_md, pxdb_header_p)
+     int index;
+     quick_module_entry *qMD;
+     int curr_md;
+     PXDB_header_ptr pxdb_header_p;
+{
+  while (VALID_CURR_MODULE)
+    {
+      if (CURR_MODULE_ISYM >= index)
+	return CURR_MODULE_ISYM - 1;
+      curr_md++;
+    }
+  return 0;
+}
+
+/* Scan and record partial symbols for all functions starting from index
+   pointed to by CURR_PD_P, and between code addresses START_ADR and END_ADR.
+   Other parameters are explained in comments below. */
+
+/* This used to be inline in hpread_quick_traverse, but now that we do essentially the
+   same thing for two different cases (modules and module-less files), it's better
+   organized in a separate routine, although it does take lots of arguments. pai/1997-10-08 */
+
+static int
+scan_procs (curr_pd_p, qPD, max_procs, start_adr, end_adr, pst, vt_bits, objfile, section_offsets)
+     int *curr_pd_p;		/* pointer to current proc index */
+     quick_procedure_entry *qPD;	/* the procedure quick lookup table */
+     int max_procs;		/* number of entries in proc. table */
+     CORE_ADDR start_adr;	/* beginning of code range for current psymtab */
+     CORE_ADDR end_adr;		/* end of code range for current psymtab */
+     struct partial_symtab *pst;	/* current psymtab */
+     char *vt_bits;		/* strings table of SOM debug space */
+     struct objfile *objfile;	/* current object file */
+     struct section_offsets *section_offsets;	/* not really used for HP-UX currently */
+{
+  union dnttentry *dn_bufp;
+  int symbol_count = 0;		/* Total number of symbols in this psymtab */
+  int curr_pd = *curr_pd_p;	/* Convenience variable -- avoid dereferencing pointer all the time */
+
+#ifdef DUMPING
+  /* Turn this on for lots of debugging information in this routine */
+  static int dumping = 0;
+#endif
+
+#ifdef DUMPING
+  if (dumping)
+    {
+      printf ("Scan_procs called, addresses %x to %x, proc %x\n", start_adr, end_adr, curr_pd);
+    }
+#endif
+
+  while ((CURR_PROC_START <= end_adr) && (curr_pd < max_procs))
+    {
+
+      char *rtn_name;		/* mangled name */
+      char *rtn_dem_name;	/* qualified demangled name */
+      char *class_name;
+      int class;
+
+      if ((trans_lang ((enum hp_language) qPD[curr_pd].language) == language_cplus) &&
+	  vt_bits[(long) qPD[curr_pd].sbAlias])		/* not a null string */
+	{
+	  /* Get mangled name for the procedure, and demangle it */
+	  rtn_name = &vt_bits[(long) qPD[curr_pd].sbAlias];
+	  rtn_dem_name = cplus_demangle (rtn_name, DMGL_ANSI | DMGL_PARAMS);
+	}
+      else
+	{
+	  rtn_name = &vt_bits[(long) qPD[curr_pd].sbProc];
+	  rtn_dem_name = NULL;
+	}
+
+      /* Hack to get around HP C/C++ compilers' insistence on providing
+         "_MAIN_" as an alternate name for "main" */
+      if ((strcmp (rtn_name, "_MAIN_") == 0) &&
+	  (strcmp (&vt_bits[(long) qPD[curr_pd].sbProc], "main") == 0))
+	rtn_dem_name = rtn_name = main_string;
+
+#ifdef DUMPING
+      if (dumping)
+	{
+	  printf ("..add %s (demangled %s), index %x to this psymtab\n", rtn_name, rtn_dem_name, curr_pd);
+	}
+#endif
+
+      /* Check for module-spanning routines. */
+      if (CURR_PROC_END > end_adr)
+	{
+	  TELL_OBJFILE;
+	  warning ("Procedure \"%s\" [0x%x] spans file or module boundaries.", rtn_name, curr_pd);
+	}
+
+      /* Add this routine symbol to the list in the objfile. 
+         Unfortunately we have to go to the LNTT to determine the
+         correct list to put it on. An alternative (which the
+         code used to do) would be to not check and always throw
+         it on the "static" list. But if we go that route, then
+         symbol_lookup() needs to be tweaked a bit to account
+         for the fact that the function might not be found on
+         the correct list in the psymtab. - RT */
+      dn_bufp = hpread_get_lntt (qPD[curr_pd].isym, objfile);
+      if (dn_bufp->dfunc.global)
+	add_psymbol_with_dem_name_to_list (rtn_name,
+					   strlen (rtn_name),
+					   rtn_dem_name,
+					   strlen (rtn_dem_name),
+					   VAR_NAMESPACE,
+					   LOC_BLOCK,	/* "I am a routine"        */
+					   &objfile->global_psymbols,
+					   (qPD[curr_pd].adrStart + /* Starting address of rtn */
+					    ANOFFSET (section_offsets, SECT_OFF_TEXT)),
+					   0,	/* core addr?? */
+					   trans_lang ((enum hp_language) qPD[curr_pd].language),
+					   objfile);
+      else
+	add_psymbol_with_dem_name_to_list (rtn_name,
+					   strlen (rtn_name),
+					   rtn_dem_name,
+					   strlen (rtn_dem_name),
+					   VAR_NAMESPACE,
+					   LOC_BLOCK,	/* "I am a routine"        */
+					   &objfile->static_psymbols,
+					   (qPD[curr_pd].adrStart +  /* Starting address of rtn */
+					    ANOFFSET (section_offsets, SECT_OFF_TEXT)),
+					   0,	/* core addr?? */
+					   trans_lang ((enum hp_language) qPD[curr_pd].language),
+					   objfile);
+
+      symbol_count++;
+      *curr_pd_p = ++curr_pd;	/* bump up count & reflect in caller */
+    }				/* loop over procedures */
+
+#ifdef DUMPING
+  if (dumping)
+    {
+      if (symbol_count == 0)
+	printf ("Scan_procs: no symbols found!\n");
+    }
+#endif
+
+  return symbol_count;
+}
+
+
+/* Traverse the quick look-up tables, building a set of psymtabs.
+
+   This constructs a psymtab for modules and files in the quick lookup
+   tables.
+
+   Mostly, modules correspond to compilation units, so we try to
+   create psymtabs that correspond to modules; however, in some cases
+   a file can result in a compiled object which does not have a module
+   entry for it, so in such cases we create a psymtab for the file.  */
+
+int
+hpread_quick_traverse (objfile,	section_offsets, gntt_bits, vt_bits, pxdb_header_p)	
+     struct objfile *objfile;        /* The object file descriptor */
+     struct section_offsets *section_offsets; /* ?? Null for HP */
+     char *gntt_bits;                /* GNTT entries, loaded in from the file */
+     char *vt_bits;                  /* VT (string) entries ditto. */
+     PXDB_header_ptr pxdb_header_p;  /* Pointer to pxdb header ditto */
+{
+  struct partial_symtab *pst;
+
+  char *addr;
+
+  quick_procedure_entry *qPD;
+  quick_file_entry *qFD;
+  quick_module_entry *qMD;
+  quick_class_entry *qCD;
+
+  int idx;
+  int i;
+  CORE_ADDR start_adr;		/* current psymtab's starting code addr   */
+  CORE_ADDR end_adr;		/* current psymtab's ending code addr     */
+  CORE_ADDR next_mod_adr;	/* next module's starting code addr    */
+  int curr_pd;			/* current procedure */
+  int curr_fd;			/* current file      */
+  int curr_md;			/* current module    */
+  int start_sym;		/* current psymtab's starting symbol index */
+  int end_sym;			/* current psymtab's ending symbol index   */
+  int max_LNTT_sym_index;
+  int syms_in_pst;
+  B_TYPE *class_entered;
+
+  struct partial_symbol **global_syms;	/* We'll be filling in the "global"   */
+  struct partial_symbol **static_syms;	/* and "static" tables in the objfile
+                                           as we go, so we need a pair of     
+                                           current pointers. */
+
+#ifdef DUMPING
+  /* Turn this on for lots of debugging information in this routine.
+     You get a blow-by-blow account of quick lookup table reading */
+  static int dumping = 0;
+#endif
+
+  pst = (struct partial_symtab *) 0;
+
+  /* Clear out some globals */
+  init_pst_syms ();
+  told_objfile = 0;
+
+  /* Demangling style -- if EDG style already set, don't change it,
+     as HP style causes some problems with the KAI EDG compiler */
+  if (current_demangling_style != edg_demangling)
+    {
+      /* Otherwise, ensure that we are using HP style demangling */
+      set_demangling_style (HP_DEMANGLING_STYLE_STRING);
+    }
+
+  /* First we need to find the starting points of the quick
+     look-up tables in the GNTT. */
+
+  addr = gntt_bits;
+
+  qPD = (quick_procedure_entry_ptr) addr;
+  addr += pxdb_header_p->pd_entries * sizeof (quick_procedure_entry);
+
+#ifdef DUMPING
+  if (dumping)
+    {
+      printf ("\n Printing routines as we see them\n");
+      for (i = 0; VALID_PROC (i); i++)
+	{
+	  idx = (long) qPD[i].sbProc;
+	  printf ("%s %x..%x\n", &vt_bits[idx],
+		  (int) PROC_START (i),
+		  (int) PROC_END (i));
+	}
+    }
+#endif
+
+  qFD = (quick_file_entry_ptr) addr;
+  addr += pxdb_header_p->fd_entries * sizeof (quick_file_entry);
+
+#ifdef DUMPING
+  if (dumping)
+    {
+      printf ("\n Printing files as we see them\n");
+      for (i = 0; VALID_FILE (i); i++)
+	{
+	  idx = (long) qFD[i].sbFile;
+	  printf ("%s %x..%x\n", &vt_bits[idx],
+		  (int) FILE_START (i),
+		  (int) FILE_END (i));
+	}
+    }
+#endif
+
+  qMD = (quick_module_entry_ptr) addr;
+  addr += pxdb_header_p->md_entries * sizeof (quick_module_entry);
+
+#ifdef DUMPING
+  if (dumping)
+    {
+      printf ("\n Printing modules as we see them\n");
+      for (i = 0; i < pxdb_header_p->md_entries; i++)
+	{
+	  idx = (long) qMD[i].sbMod;
+	  printf ("%s\n", &vt_bits[idx]);
+	}
+    }
+#endif
+
+  qCD = (quick_class_entry_ptr) addr;
+  addr += pxdb_header_p->cd_entries * sizeof (quick_class_entry);
+
+#ifdef DUMPING
+  if (dumping)
+    {
+      printf ("\n Printing classes as we see them\n");
+      for (i = 0; VALID_CLASS (i); i++)
+	{
+	  idx = (long) qCD[i].sbClass;
+	  printf ("%s\n", &vt_bits[idx]);
+	}
+
+      printf ("\n Done with dump, on to build!\n");
+    }
+#endif
+
+  /* We need this index only while hp-symtab-read.c expects
+     a byte offset to the end of the LNTT entries for a given
+     psymtab.  Thus the need for it should go away someday.
+
+     When it goes away, then we won't have any need to load the
+     LNTT from the objfile at psymtab-time, and start-up will be
+     faster.  To make that work, we'll need some way to create
+     a null pst for the "globals" pseudo-module. */
+  max_LNTT_sym_index = LNTT_SYMCOUNT (objfile);
+
+  /* Scan the module descriptors and make a psymtab for each.
+
+     We know the MDs, FDs and the PDs are in order by starting
+     address.  We use that fact to traverse all three arrays in
+     parallel, knowing when the next PD is in a new file
+     and we need to create a new psymtab. */
+  curr_pd = 0;			/* Current procedure entry */
+  curr_fd = 0;			/* Current file entry */
+  curr_md = 0;			/* Current module entry */
+
+  start_adr = 0;		/* Current psymtab code range */
+  end_adr = 0;
+
+  start_sym = 0;		/* Current psymtab symbol range */
+  end_sym = 0;
+
+  syms_in_pst = 0;		/* Symbol count for psymtab */
+
+  /* Psts actually just have pointers into the objfile's
+     symbol table, not their own symbol tables. */
+  global_syms = objfile->global_psymbols.list;
+  static_syms = objfile->static_psymbols.list;
+
+
+  /* First skip over pseudo-entries with address 0.  These represent inlined
+     routines and abstract (uninstantiated) template routines.
+     FIXME: These should be read in and available -- even if we can't set
+     breakpoints, etc., there's some information that can be presented
+     to the user. pai/1997-10-08  */
+
+  while (VALID_CURR_PROC && (CURR_PROC_START == 0))
+    curr_pd++;
+
+  /* Loop over files, modules, and procedures in code address order. Each
+     time we enter an iteration of this loop, curr_pd points to the first
+     unprocessed procedure, curr_fd points to the first unprocessed file, and
+     curr_md to the first unprocessed module.  Each iteration of this loop
+     updates these as required -- any or all of them may be bumpd up
+     each time around.  When we exit this loop, we are done with all files
+     and modules in the tables -- there may still be some procedures, however.
+
+     Note: This code used to loop only over module entries, under the assumption
+     that files can occur via inclusions and are thus unreliable, while a
+     compiled object always corresponds to a module.  With CTTI in the HP aCC
+     compiler, it turns out that compiled objects may have only files and no
+     modules; so we have to loop over files and modules, creating psymtabs for
+     either as appropriate.  Unfortunately there are some problems (notably:
+     1. the lack of "SRC_FILE_END" entries in the LNTT, 2. the lack of pointers
+     to the ending symbol indices of a module or a file) which make it quite hard
+     to do this correctly.  Currently it uses a bunch of heuristics to start and
+     end psymtabs; they seem to work well with most objects generated by aCC, but
+     who knows when that will change...   */
+
+  while (VALID_CURR_FILE || VALID_CURR_MODULE)
+    {
+
+      char *mod_name_string;
+      char *full_name_string;
+
+      /* First check for modules like "version.c", which have no code
+         in them but still have qMD entries.  They also have no qFD or
+         qPD entries.  Their start address is -1 and their end address
+         is 0.  */
+      if (VALID_CURR_MODULE && (CURR_MODULE_START == -1) && (CURR_MODULE_END == 0))
+	{
+
+	  mod_name_string = &vt_bits[(long) qMD[curr_md].sbMod];
+
+#ifdef DUMPING
+	  if (dumping)
+	    printf ("Module with data only %s\n", mod_name_string);
+#endif
+
+	  /* We'll skip the rest (it makes error-checking easier), and
+	     just make an empty pst.  Right now empty psts are not put
+	     in the pst chain, so all this is for naught, but later it
+	     might help.  */
+
+	  pst = hpread_start_psymtab (objfile,
+				      section_offsets,	        /* ?? */
+				      mod_name_string,
+				      CURR_MODULE_START,	/* Low text address: bogus! */
+				      (CURR_MODULE_ISYM * sizeof (struct dntt_type_block)),
+				                                /* ldsymoff */
+				      global_syms,
+				      static_syms);
+
+	  pst = hpread_end_psymtab (pst,
+				    NULL,	/* psymtab_include_list */
+				    0,		/* includes_used        */
+				    end_sym * sizeof (struct dntt_type_block),
+				                /* byte index in LNTT of end 
+				                   = capping symbol offset  
+				                   = LDSYMOFF of nextfile */
+				    0,	        /* text high            */
+				    NULL,	/* dependency_list      */
+				    0);	        /* dependencies_used    */
+
+	  global_syms = objfile->global_psymbols.next;
+	  static_syms = objfile->static_psymbols.next;
+
+	  curr_md++;
+	}
+      else if (VALID_CURR_MODULE &&
+	       ((CURR_MODULE_START == 0) || (CURR_MODULE_START == -1) ||
+		(CURR_MODULE_END == 0) || (CURR_MODULE_END == -1)))
+	{
+	  TELL_OBJFILE;
+	  warning ("Module \"%s\" [0x%x] has non-standard addresses.  It starts at 0x%x, ends at 0x%x, and will be skipped.",
+		   mod_name_string, curr_md, start_adr, end_adr);
+	  /* On to next module */
+	  curr_md++;
+	}
+      else
+	{
+	  /* First check if we are looking at a file with code in it
+	     that does not overlap the current module's code range */
+
+	  if (VALID_CURR_FILE ? (VALID_CURR_MODULE ? (CURR_FILE_END < CURR_MODULE_START) : 1) : 0)
+	    {
+
+	      /* Looking at file not corresponding to any module,
+	         create a psymtab for it */
+	      full_name_string = &vt_bits[(long) qFD[curr_fd].sbFile];
+	      start_adr = CURR_FILE_START;
+	      end_adr = CURR_FILE_END;
+	      start_sym = CURR_FILE_ISYM;
+
+	      /* Check if there are any procedures not handled until now, that
+	         begin before the start address of this file, and if so, adjust
+	         this module's start address to include them.  This handles routines that
+	         are in between file or module ranges for some reason (probably
+	         indicates a compiler bug */
+
+	      if (CURR_PROC_START < start_adr)
+		{
+		  TELL_OBJFILE;
+		  warning ("Found procedure \"%s\" [0x%x] that is not in any file or module.",
+			   &vt_bits[(long) qPD[curr_pd].sbProc], curr_pd);
+		  start_adr = CURR_PROC_START;
+		  if (CURR_PROC_ISYM < start_sym)
+		    start_sym = CURR_PROC_ISYM;
+		}
+
+	      /* Sometimes (compiler bug -- COBOL) the module end address is higher
+	         than the start address of the next module, so check for that and
+	         adjust accordingly */
+
+	      if (VALID_FILE (curr_fd + 1) && (FILE_START (curr_fd + 1) <= end_adr))
+		{
+		  TELL_OBJFILE;
+		  warning ("File \"%s\" [0x%x] has ending address after starting address of next file; adjusting ending address down.",
+			   full_name_string, curr_fd);
+		  end_adr = FILE_START (curr_fd + 1) - 1;	/* Is -4 (or -8 for 64-bit) better? */
+		}
+	      if (VALID_MODULE (curr_md) && (CURR_MODULE_START <= end_adr))
+		{
+		  TELL_OBJFILE;
+		  warning ("File \"%s\" [0x%x] has ending address after starting address of next module; adjusting ending address down.",
+			   full_name_string, curr_fd);
+		  end_adr = CURR_MODULE_START - 1;	/* Is -4 (or -8 for 64-bit) better? */
+		}
+
+
+#ifdef DUMPING
+	      if (dumping)
+		{
+		  printf ("Make new psymtab for file %s (%x to %x).\n",
+			  full_name_string, start_adr, end_adr);
+		}
+#endif
+	      /* Create the basic psymtab, connecting it in the list
+	         for this objfile and pointing its symbol entries
+	         to the current end of the symbol areas in the objfile.
+
+	         The "ldsymoff" parameter is the byte offset in the LNTT
+	         of the first symbol in this file.  Some day we should
+	         turn this into an index (fix in hp-symtab-read.c as well).
+	         And it's not even the right byte offset, as we're using
+	         the size of a union! FIXME!  */
+	      pst = hpread_start_psymtab (objfile,
+					  section_offsets,	/* ?? */
+					  full_name_string,
+					  start_adr,	        /* Low text address */
+					  (start_sym * sizeof (struct dntt_type_block)),
+					                        /* ldsymoff */
+					  global_syms,
+					  static_syms);
+
+	      /* Set up to only enter each class referenced in this module once.  */
+	      class_entered = malloc (B_BYTES (pxdb_header_p->cd_entries));
+	      B_CLRALL (class_entered, pxdb_header_p->cd_entries);
+
+	      /* Scan the procedure descriptors for procedures in the current
+	         file, based on the starting addresses. */
+
+	      syms_in_pst = scan_procs (&curr_pd, qPD, pxdb_header_p->pd_entries,
+					start_adr, end_adr,
+					pst, vt_bits, objfile, section_offsets);
+
+	      /* Get ending symbol offset */
+
+	      end_sym = 0;
+	      /* First check for starting index before previous psymtab */
+	      if (pst_syms_count && start_sym < pst_syms_array[pst_syms_count - 1].end)
+		{
+		  end_sym = find_next_pst_start (start_sym);
+		}
+	      /* Look for next start index of a file or module, or procedure */
+	      if (!end_sym)
+		{
+		  int next_file_isym = find_next_file_isym (start_sym, qFD, curr_fd + 1, pxdb_header_p);
+		  int next_module_isym = find_next_module_isym (start_sym, qMD, curr_md, pxdb_header_p);
+		  int next_proc_isym = find_next_proc_isym (start_sym, qPD, curr_pd, pxdb_header_p);
+
+		  if (next_file_isym && next_module_isym)
+		    {
+		      /* pick lower of next file or module start index */
+		      end_sym = min (next_file_isym, next_module_isym);
+		    }
+		  else
+		    {
+		      /* one of them is zero, pick the other */
+		      end_sym = max (next_file_isym, next_module_isym);
+		    }
+
+		  /* As a precaution, check next procedure index too */
+		  if (!end_sym)
+		    end_sym = next_proc_isym;
+		  else
+		    end_sym = min (end_sym, next_proc_isym);
+		}
+
+	      /* Couldn't find procedure, file, or module, use globals as default */
+	      if (!end_sym)
+		end_sym = pxdb_header_p->globals;
+
+#ifdef DUMPING
+	      if (dumping)
+		{
+		  printf ("File psymtab indices: %x to %x\n", start_sym, end_sym);
+		}
+#endif
+
+	      pst = hpread_end_psymtab (pst,
+					NULL,	/* psymtab_include_list */
+					0,	/* includes_used        */
+					end_sym * sizeof (struct dntt_type_block),
+					        /* byte index in LNTT of end 
+						   = capping symbol offset   
+						   = LDSYMOFF of nextfile */
+					end_adr,	/* text high */
+					NULL,	/* dependency_list */
+					0);	/* dependencies_used */
+
+	      record_pst_syms (start_sym, end_sym);
+
+	      if (NULL == pst)
+		warning ("No symbols in psymtab for file \"%s\" [0x%x].", full_name_string, curr_fd);
+
+#ifdef DUMPING
+	      if (dumping)
+		{
+		  printf ("Made new psymtab for file %s (%x to %x), sym %x to %x.\n",
+			  full_name_string, start_adr, end_adr, CURR_FILE_ISYM, end_sym);
+		}
+#endif
+	      /* Prepare for the next psymtab. */
+	      global_syms = objfile->global_psymbols.next;
+	      static_syms = objfile->static_psymbols.next;
+	      free (class_entered);
+
+	      curr_fd++;
+	    }			/* Psymtab for file */
+	  else
+	    {
+	      /* We have a module for which we create a psymtab */
+
+	      mod_name_string = &vt_bits[(long) qMD[curr_md].sbMod];
+
+	      /* We will include the code ranges of any files that happen to
+	         overlap with this module */
+
+	      /* So, first pick the lower of the file's and module's start addresses */
+	      start_adr = CURR_MODULE_START;
+	      if (VALID_CURR_FILE)
+		{
+		  if (CURR_FILE_START < CURR_MODULE_START)
+		    {
+		      TELL_OBJFILE;
+		      warning ("File \"%s\" [0x%x] crosses beginning of module \"%s\".",
+			       &vt_bits[(long) qFD[curr_fd].sbFile],
+			       curr_fd, mod_name_string);
+
+		      start_adr = CURR_FILE_START;
+		    }
+		}
+
+	      /* Also pick the lower of the file's and the module's start symbol indices */
+	      start_sym = CURR_MODULE_ISYM;
+	      if (VALID_CURR_FILE && (CURR_FILE_ISYM < CURR_MODULE_ISYM))
+		start_sym = CURR_FILE_ISYM;
+
+	      /* For the end address, we scan through the files till we find one
+	         that overlaps the current module but ends beyond it; if no such file exists we
+	         simply use the module's start address.  
+	         (Note, if file entries themselves overlap
+	         we take the longest overlapping extension beyond the end of the module...)
+	         We assume that modules never overlap. */
+
+	      end_adr = CURR_MODULE_END;
+
+	      if (VALID_CURR_FILE)
+		{
+		  while (VALID_CURR_FILE && (CURR_FILE_START < end_adr))
+		    {
+
+#ifdef DUMPING
+		      if (dumping)
+			printf ("Maybe skipping file %s which overlaps with module %s\n",
+				&vt_bits[(long) qFD[curr_fd].sbFile], mod_name_string);
+#endif
+		      if (CURR_FILE_END > end_adr)
+			{
+			  TELL_OBJFILE;
+			  warning ("File \"%s\" [0x%x] crosses end of module \"%s\".",
+				   &vt_bits[(long) qFD[curr_fd].sbFile],
+				   curr_fd, mod_name_string);
+			  end_adr = CURR_FILE_END;
+			}
+		      curr_fd++;
+		    }
+		  curr_fd--;	/* back up after going too far */
+		}
+
+	      /* Sometimes (compiler bug -- COBOL) the module end address is higher
+	         than the start address of the next module, so check for that and
+	         adjust accordingly */
+
+	      if (VALID_MODULE (curr_md + 1) && (MODULE_START (curr_md + 1) <= end_adr))
+		{
+		  TELL_OBJFILE;
+		  warning ("Module \"%s\" [0x%x] has ending address after starting address of next module; adjusting ending address down.",
+			   mod_name_string, curr_md);
+		  end_adr = MODULE_START (curr_md + 1) - 1;	/* Is -4 (or -8 for 64-bit) better? */
+		}
+	      if (VALID_FILE (curr_fd + 1) && (FILE_START (curr_fd + 1) <= end_adr))
+		{
+		  TELL_OBJFILE;
+		  warning ("Module \"%s\" [0x%x] has ending address after starting address of next file; adjusting ending address down.",
+			   mod_name_string, curr_md);
+		  end_adr = FILE_START (curr_fd + 1) - 1;	/* Is -4 (or -8 for 64-bit) better? */
+		}
+
+	      /* Use one file to get the full name for the module.  This
+	         situation can arise if there is executable code in a #include
+	         file.  Each file with code in it gets a qFD.  Files which don't
+	         contribute code don't get a qFD, even if they include files
+	         which do, e.g.: 
+
+	         body.c:                    rtn.h:
+	         int x;                     int main() {
+	         #include "rtn.h"               return x;
+	         }
+
+	         There will a qFD for "rtn.h",and a qMD for "body.c",
+	         but no qMD for "rtn.h" or qFD for "body.c"!
+
+	         We pick the name of the last file to overlap with this
+	         module.  C convention is to put include files first.  In a
+	         perfect world, we could check names and use the file whose full
+	         path name ends with the module name. */
+
+	      if (VALID_CURR_FILE)
+		full_name_string = &vt_bits[(long) qFD[curr_fd].sbFile];
+	      else
+		full_name_string = mod_name_string;
+
+	      /* Check if there are any procedures not handled until now, that
+	         begin before the start address we have now, and if so, adjust
+	         this psymtab's start address to include them.  This handles routines that
+	         are in between file or module ranges for some reason (probably
+	         indicates a compiler bug */
+
+	      if (CURR_PROC_START < start_adr)
+		{
+		  TELL_OBJFILE;
+		  warning ("Found procedure \"%s\" [0x%x] that is not in any file or module.",
+			   &vt_bits[(long) qPD[curr_pd].sbProc], curr_pd);
+		  start_adr = CURR_PROC_START;
+		  if (CURR_PROC_ISYM < start_sym)
+		    start_sym = CURR_PROC_ISYM;
+		}
+
+#ifdef DUMPING
+	      if (dumping)
+		{
+		  printf ("Make new psymtab for module %s (%x to %x), using file %s\n",
+		     mod_name_string, start_adr, end_adr, full_name_string);
+		}
+#endif
+	      /* Create the basic psymtab, connecting it in the list
+	         for this objfile and pointing its symbol entries
+	         to the current end of the symbol areas in the objfile.
+
+	         The "ldsymoff" parameter is the byte offset in the LNTT
+	         of the first symbol in this file.  Some day we should
+	         turn this into an index (fix in hp-symtab-read.c as well).
+	         And it's not even the right byte offset, as we're using
+	         the size of a union! FIXME!  */
+	      pst = hpread_start_psymtab (objfile,
+					  section_offsets,	/* ?? */
+					  full_name_string,
+					  start_adr,	/* Low text address */
+					  (start_sym * sizeof (struct dntt_type_block)),
+					                /* ldsymoff */
+					  global_syms,
+					  static_syms);
+
+	      /* Set up to only enter each class referenced in this module once.  */
+	      class_entered = malloc (B_BYTES (pxdb_header_p->cd_entries));
+	      B_CLRALL (class_entered, pxdb_header_p->cd_entries);
+
+	      /* Scan the procedure descriptors for procedures in the current
+	         module, based on the starting addresses. */
+
+	      syms_in_pst = scan_procs (&curr_pd, qPD, pxdb_header_p->pd_entries,
+					start_adr, end_adr,
+					pst, vt_bits, objfile, section_offsets);
+
+	      /* Get ending symbol offset */
+
+	      end_sym = 0;
+	      /* First check for starting index before previous psymtab */
+	      if (pst_syms_count && start_sym < pst_syms_array[pst_syms_count - 1].end)
+		{
+		  end_sym = find_next_pst_start (start_sym);
+		}
+	      /* Look for next start index of a file or module, or procedure */
+	      if (!end_sym)
+		{
+		  int next_file_isym = find_next_file_isym (start_sym, qFD, curr_fd + 1, pxdb_header_p);
+		  int next_module_isym = find_next_module_isym (start_sym, qMD, curr_md + 1, pxdb_header_p);
+		  int next_proc_isym = find_next_proc_isym (start_sym, qPD, curr_pd, pxdb_header_p);
+
+		  if (next_file_isym && next_module_isym)
+		    {
+		      /* pick lower of next file or module start index */
+		      end_sym = min (next_file_isym, next_module_isym);
+		    }
+		  else
+		    {
+		      /* one of them is zero, pick the other */
+		      end_sym = max (next_file_isym, next_module_isym);
+		    }
+
+		  /* As a precaution, check next procedure index too */
+		  if (!end_sym)
+		    end_sym = next_proc_isym;
+		  else
+		    end_sym = min (end_sym, next_proc_isym);
+		}
+
+	      /* Couldn't find procedure, file, or module, use globals as default */
+	      if (!end_sym)
+		end_sym = pxdb_header_p->globals;
+
+#ifdef DUMPING
+	      if (dumping)
+		{
+		  printf ("Module psymtab indices: %x to %x\n", start_sym, end_sym);
+		}
+#endif
+
+	      pst = hpread_end_psymtab (pst,
+					NULL,	/* psymtab_include_list */
+					0,	/* includes_used        */
+					end_sym * sizeof (struct dntt_type_block),
+					        /* byte index in LNTT of end 
+						   = capping symbol offset   
+						   = LDSYMOFF of nextfile */
+					end_adr,	/* text high */
+					NULL,	/* dependency_list      */
+					0);	/* dependencies_used    */
+
+	      record_pst_syms (start_sym, end_sym);
+
+	      if (NULL == pst)
+		warning ("No symbols in psymtab for module \"%s\" [0x%x].", mod_name_string, curr_md);
+
+#ifdef DUMPING
+	      if (dumping)
+		{
+		  printf ("Made new psymtab for module %s (%x to %x), sym %x to %x.\n",
+			  mod_name_string, start_adr, end_adr, CURR_MODULE_ISYM, end_sym);
+		}
+#endif
+
+	      /* Prepare for the next psymtab. */
+	      global_syms = objfile->global_psymbols.next;
+	      static_syms = objfile->static_psymbols.next;
+	      free (class_entered);
+
+	      curr_md++;
+	      curr_fd++;
+	    }			/* psymtab for module */
+	}			/* psymtab for non-bogus file or module */
+    }				/* End of while loop over all files & modules */
+
+  /* There may be some routines after all files and modules -- these will get
+     inserted in a separate new module of their own */
+  if (VALID_CURR_PROC)
+    {
+      start_adr = CURR_PROC_START;
+      end_adr = qPD[pxdb_header_p->pd_entries - 1].adrEnd;
+      TELL_OBJFILE;
+      warning ("Found functions beyond end of all files and modules [0x%x].", curr_pd);
+#ifdef DUMPING
+      if (dumping)
+	{
+	  printf ("Orphan functions at end, PD %d and beyond (%x to %x)\n",
+		  curr_pd, start_adr, end_adr);
+	}
+#endif
+      pst = hpread_start_psymtab (objfile,
+				  section_offsets,	/* ?? */
+				  "orphans",
+				  start_adr,	/* Low text address */
+				  (CURR_PROC_ISYM * sizeof (struct dntt_type_block)),
+				                /* ldsymoff */
+				  global_syms,
+				  static_syms);
+
+      scan_procs (&curr_pd, qPD, pxdb_header_p->pd_entries,
+		  start_adr, end_adr,
+		  pst, vt_bits, objfile, section_offsets);
+
+      pst = hpread_end_psymtab (pst,
+				NULL,	/* psymtab_include_list */
+				0,	/* includes_used */
+				pxdb_header_p->globals * sizeof (struct dntt_type_block),
+				        /* byte index in LNTT of end 
+					   = capping symbol offset   
+					   = LDSYMOFF of nextfile */
+				end_adr,	/* text high  */
+				NULL,	/* dependency_list */
+				0);	/* dependencies_used */
+    }
+
+
+#ifdef NEVER_NEVER
+  /* Now build psts for non-module things (in the tail of
+     the LNTT, after the last END MODULE entry).
+
+     If null psts were kept on the chain, this would be
+     a solution.  FIXME */
+  pst = hpread_start_psymtab (objfile,
+			      section_offsets,
+			      "globals",
+			      0,
+			      (pxdb_header_p->globals
+			       * sizeof (struct dntt_type_block)),
+			      objfile->global_psymbols.next,
+			      objfile->static_psymbols.next);
+  hpread_end_psymtab (pst,
+		      NULL, 0,
+		      (max_LNTT_sym_index * sizeof (struct dntt_type_block)),
+		      0,
+		      NULL, 0);
+#endif
+
+  clear_pst_syms ();
+
+  return 1;
+
+}				/* End of hpread_quick_traverse. */
+
+
+/* Get appropriate header, based on pxdb type. 
+   Return value: 1 if ok, 0 if not */
+int
+hpread_get_header (objfile, pxdb_header_p)
+     struct objfile *objfile;
+     PXDB_header_ptr pxdb_header_p;
+{
+  asection *pinfo_section, *debug_section, *header_section;
+
+#ifdef DUMPING
+  /* Turn on for debugging information */
+  static int dumping = 0;
+#endif
+
+  header_section = bfd_get_section_by_name (objfile->obfd, "$HEADER$");
+  if (!header_section)
+    {
+      /* We don't have either PINFO or DEBUG sections.  But
+         stuff like "libc.sl" has no debug info.  There's no
+         need to warn the user of this, as it may be ok. The
+         caller will figure it out and issue any needed
+         messages. */
+#ifdef DUMPING
+      if (dumping)
+	printf ("==No debug info at all for %s.\n", objfile->name);
+#endif
+
+      return 0;
+    }
+
+  /* We would like either a $DEBUG$ or $PINFO$ section.
+     Once we know which, we can understand the header
+     data (which we have defined to suit the more common
+     $DEBUG$ case). */
+  debug_section = bfd_get_section_by_name (objfile->obfd, "$DEBUG$");
+  pinfo_section = bfd_get_section_by_name (objfile->obfd, "$PINFO$");
+  if (debug_section)
+    {
+      /* The expected case: normal pxdb header. */
+      bfd_get_section_contents (objfile->obfd, header_section,
+				pxdb_header_p, 0, sizeof (PXDB_header));
+
+      if (!pxdb_header_p->pxdbed)
+	{
+	  /* This shouldn't happen if we check in "symfile.c". */
+	  return 0;
+	}			/* DEBUG section */
+    }
+
+  else if (pinfo_section)
+    {
+      /* The DOC case; we need to translate this into a
+         regular header. */
+      DOC_info_PXDB_header doc_header;
+
+#ifdef DUMPING
+      if (dumping)
+	{
+	  printf ("==OOps, PINFO, let's try to handle this, %s.\n", objfile->name);
+	}
+#endif
+
+      bfd_get_section_contents (objfile->obfd,
+				header_section,
+				&doc_header, 0,
+				sizeof (DOC_info_PXDB_header));
+
+      if (!doc_header.pxdbed)
+	{
+	  /* This shouldn't happen if we check in "symfile.c". */
+	  warning ("File \"%s\" not processed by pxdb!", objfile->name);
+	  return 0;
+	}
+
+      /* Copy relevent fields to standard header passed in. */
+      pxdb_header_p->pd_entries = doc_header.pd_entries;
+      pxdb_header_p->fd_entries = doc_header.fd_entries;
+      pxdb_header_p->md_entries = doc_header.md_entries;
+      pxdb_header_p->pxdbed = doc_header.pxdbed;
+      pxdb_header_p->bighdr = doc_header.bighdr;
+      pxdb_header_p->sa_header = doc_header.sa_header;
+      pxdb_header_p->inlined = doc_header.inlined;
+      pxdb_header_p->globals = doc_header.globals;
+      pxdb_header_p->time = doc_header.time;
+      pxdb_header_p->pg_entries = doc_header.pg_entries;
+      pxdb_header_p->functions = doc_header.functions;
+      pxdb_header_p->files = doc_header.files;
+      pxdb_header_p->cd_entries = doc_header.cd_entries;
+      pxdb_header_p->aa_entries = doc_header.aa_entries;
+      pxdb_header_p->oi_entries = doc_header.oi_entries;
+      pxdb_header_p->version = doc_header.version;
+    }				/* PINFO section */
+
+  else
+    {
+#ifdef DUMPING
+      if (dumping)
+	printf ("==No debug info at all for %s.\n", objfile->name);
+#endif
+
+      return 0;
+
+    }
+
+  return 1;
+}				/* End of hpread_get_header */
+#endif /* QUICK_LOOK_UP */
+
+
+/* Initialization for reading native HP C debug symbols from OBJFILE.
+
+   Its only purpose in life is to set up the symbol reader's private
+   per-objfile data structures, and read in the raw contents of the debug
+   sections (attaching pointers to the debug info into the private data
+   structures).
+
+   Since BFD doesn't know how to read debug symbols in a format-independent
+   way (and may never do so...), we have to do it ourselves.  Note we may
+   be called on a file without native HP C debugging symbols.
+
+   FIXME, there should be a cleaner peephole into the BFD environment
+   here. */
+void
+hpread_symfile_init (objfile)
+     struct objfile *objfile;
+{
+  asection *vt_section, *slt_section, *lntt_section, *gntt_section;
+
+  /* Allocate struct to keep track of the symfile */
+  objfile->sym_private = (PTR)
+    xmmalloc (objfile->md, sizeof (struct hpread_symfile_info));
+  memset (objfile->sym_private, 0, sizeof (struct hpread_symfile_info));
+
+  /* We haven't read in any types yet.  */
+  TYPE_VECTOR (objfile) = 0;
+
+  /* Read in data from the $GNTT$ subspace.  */
+  gntt_section = bfd_get_section_by_name (objfile->obfd, "$GNTT$");
+  if (!gntt_section)
+    return;
+
+  GNTT (objfile)
+    = obstack_alloc (&objfile->symbol_obstack,
+		     bfd_section_size (objfile->obfd, gntt_section));
+
+  bfd_get_section_contents (objfile->obfd, gntt_section, GNTT (objfile),
+			    0, bfd_section_size (objfile->obfd, gntt_section));
+
+  GNTT_SYMCOUNT (objfile)
+    = bfd_section_size (objfile->obfd, gntt_section)
+    / sizeof (struct dntt_type_block);
+
+  /* Read in data from the $LNTT$ subspace.   Also keep track of the number
+     of LNTT symbols.
+
+     FIXME: this could be moved into the psymtab-to-symtab expansion
+     code, and save startup time.  At the moment this data is
+     still used, though.  We'd need a way to tell hp-symtab-read.c
+     whether or not to load the LNTT. */
+  lntt_section = bfd_get_section_by_name (objfile->obfd, "$LNTT$");
+  if (!lntt_section)
+    return;
+
+  LNTT (objfile)
+    = obstack_alloc (&objfile->symbol_obstack,
+		     bfd_section_size (objfile->obfd, lntt_section));
+
+  bfd_get_section_contents (objfile->obfd, lntt_section, LNTT (objfile),
+			    0, bfd_section_size (objfile->obfd, lntt_section));
+
+  LNTT_SYMCOUNT (objfile)
+    = bfd_section_size (objfile->obfd, lntt_section)
+    / sizeof (struct dntt_type_block);
+
+  /* Read in data from the $SLT$ subspace.  $SLT$ contains information
+     on source line numbers.  */
+  slt_section = bfd_get_section_by_name (objfile->obfd, "$SLT$");
+  if (!slt_section)
+    return;
+
+  SLT (objfile) =
+    obstack_alloc (&objfile->symbol_obstack,
+		   bfd_section_size (objfile->obfd, slt_section));
+
+  bfd_get_section_contents (objfile->obfd, slt_section, SLT (objfile),
+			    0, bfd_section_size (objfile->obfd, slt_section));
+
+  /* Read in data from the $VT$ subspace.  $VT$ contains things like
+     names and constants.  Keep track of the number of symbols in the VT.  */
+  vt_section = bfd_get_section_by_name (objfile->obfd, "$VT$");
+  if (!vt_section)
+    return;
+
+  VT_SIZE (objfile) = bfd_section_size (objfile->obfd, vt_section);
+
+  VT (objfile) =
+    (char *) obstack_alloc (&objfile->symbol_obstack,
+			    VT_SIZE (objfile));
+
+  bfd_get_section_contents (objfile->obfd, vt_section, VT (objfile),
+			    0, VT_SIZE (objfile));
+}
+
+/* Scan and build partial symbols for a symbol file.
+
+   The minimal symbol table (either SOM or HP a.out) has already been
+   read in; all we need to do is setup partial symbols based on the
+   native debugging information.
+
+   Note that the minimal table is produced by the linker, and has
+   only global routines in it; the psymtab is based on compiler-
+   generated debug information and has non-global
+   routines in it as well as files and class information.
+
+   We assume hpread_symfile_init has been called to initialize the
+   symbol reader's private data structures.
+
+   SECTION_OFFSETS contains offsets relative to which the symbols in the
+   various sections are (depending where the sections were actually loaded).
+   MAINLINE is true if we are reading the main symbol table (as
+   opposed to a shared lib or dynamically loaded file). */
+void
+hpread_build_psymtabs (objfile, section_offsets, mainline)
+     struct objfile *objfile;
+     struct section_offsets *section_offsets;
+     int mainline;
+{
+
+#ifdef DUMPING
+  /* Turn this on to get debugging output. */
+  static int dumping = 0;
+#endif
+
+  char *namestring;
+  int past_first_source_file = 0;
+  struct cleanup *old_chain;
+
+  int hp_symnum, symcount, i;
+  int scan_start = 0;
+
+  union dnttentry *dn_bufp;
+  unsigned long valu;
+  char *p;
+  int texthigh = 0;
+  int have_name = 0;
+
+  /* Current partial symtab */
+  struct partial_symtab *pst;
+
+  /* List of current psymtab's include files */
+  char **psymtab_include_list;
+  int includes_allocated;
+  int includes_used;
+
+  /* Index within current psymtab dependency list */
+  struct partial_symtab **dependency_list;
+  int dependencies_used, dependencies_allocated;
+
+  /* Just in case the stabs reader left turds lying around.  */
+  free_pending_blocks ();
+  make_cleanup ((make_cleanup_func) really_free_pendings, 0);
+
+  pst = (struct partial_symtab *) 0;
+
+  /* We shouldn't use alloca, instead use malloc/free.  Doing so avoids
+     a number of problems with cross compilation and creating useless holes
+     in the stack when we have to allocate new entries.  FIXME.  */
+
+  includes_allocated = 30;
+  includes_used = 0;
+  psymtab_include_list = (char **) alloca (includes_allocated *
+					   sizeof (char *));
+
+  dependencies_allocated = 30;
+  dependencies_used = 0;
+  dependency_list =
+    (struct partial_symtab **) alloca (dependencies_allocated *
+				       sizeof (struct partial_symtab *));
+
+  old_chain = make_cleanup ((make_cleanup_func) free_objfile, objfile);
+
+  last_source_file = 0;
+
+#ifdef QUICK_LOOK_UP
+  {
+    /* Begin code for new-style loading of quick look-up tables. */
+
+    /* elz: this checks whether the file has beeen processed by pxdb.
+       If not we would like to try to read the psymbols in
+       anyway, but it turns out to be not so easy. So this could 
+       actually be commented out, but I leave it in, just in case
+       we decide to add support for non-pxdb-ed stuff in the future. */
+    PXDB_header pxdb_header;
+    int found_modules_in_program;
+
+    if (hpread_get_header (objfile, &pxdb_header))
+      {
+	/* Build a minimal table.  No types, no global variables,
+	   no include files.... */
+#ifdef DUMPING
+	if (dumping)
+	  printf ("\nNew method for %s\n", objfile->name);
+#endif
+
+	/* elz: quick_traverse returns true if it found
+	   some modules in the main source file, other
+	   than those in end.c
+	   In C and C++, all the files have MODULES entries
+	   in the LNTT, and the quick table traverse is all 
+	   based on finding these MODULES entries. Without 
+	   those it cannot work. 
+	   It happens that F77 programs don't have MODULES
+	   so the quick traverse gets confused. F90 programs
+	   have modules, and the quick method still works.
+	   So, if modules (other than those in end.c) are
+	   not found we give up on the quick table stuff, 
+	   and fall back on the slower method  */
+	found_modules_in_program = hpread_quick_traverse (objfile,
+							  section_offsets,
+							  GNTT (objfile),
+							  VT (objfile),
+							  &pxdb_header);
+
+	discard_cleanups (old_chain);
+
+		/* Set up to scan the global section of the LNTT.
+
+		   This field is not always correct: if there are
+		   no globals, it will point to the last record in
+		   the regular LNTT, which is usually an END MODULE.
+
+		   Since it might happen that there could be a file
+		   with just one global record, there's no way to
+		   tell other than by looking at the record, so that's
+		   done below. */
+	if (found_modules_in_program)
+	  scan_start = pxdb_header.globals;
+      }
+#ifdef DUMPING
+    else
+      {
+	if (dumping)
+	  printf ("\nGoing on to old method for %s\n", objfile->name);
+      }
+#endif
+  }
+#endif /* QUICK_LOOK_UP */
+
+    /* Make two passes, one over the GNTT symbols, the other for the
+       LNTT symbols.
+
+     JB comment: above isn't true--they only make one pass, over
+     the LNTT.  */
+  for (i = 0; i < 1; i++)
+    {
+      int within_function = 0;
+
+      if (i)
+	symcount = GNTT_SYMCOUNT (objfile);
+      else
+	symcount = LNTT_SYMCOUNT (objfile);
+
+
+      for (hp_symnum = scan_start; hp_symnum < symcount; hp_symnum++)
+	{
+	  QUIT;
+	  if (i)
+	    dn_bufp = hpread_get_gntt (hp_symnum, objfile);
+	  else
+	    dn_bufp = hpread_get_lntt (hp_symnum, objfile);
+
+	  if (dn_bufp->dblock.extension)
+	    continue;
+
+	  /* Only handle things which are necessary for minimal symbols.
+	     everything else is ignored.  */
+	  switch (dn_bufp->dblock.kind)
+	    {
+	    case DNTT_TYPE_SRCFILE:
+	      {
+#ifdef QUICK_LOOK_UP
+		if (scan_start == hp_symnum
+		    && symcount == hp_symnum + 1)
+		  {
+		    /* If there are NO globals in an executable,
+		       PXDB's index to the globals will point to
+		       the last record in the file, which 
+		       could be this record. (this happened for F77 libraries)
+		       ignore it and be done! */
+		    continue;
+		  }
+#endif /* QUICK_LOOK_UP */
+
+		/* A source file of some kind.  Note this may simply
+		   be an included file.  */
+		SET_NAMESTRING (dn_bufp, &namestring, objfile);
+
+		/* Check if this is the source file we are already working
+		   with.  */
+		if (pst && !strcmp (namestring, pst->filename))
+		  continue;
+
+		/* Check if this is an include file, if so check if we have
+		   already seen it.  Add it to the include list */
+		p = strrchr (namestring, '.');
+		if (!strcmp (p, ".h"))
+		  {
+		    int j, found;
+
+		    found = 0;
+		    for (j = 0; j < includes_used; j++)
+		      if (!strcmp (namestring, psymtab_include_list[j]))
+			{
+			  found = 1;
+			  break;
+			}
+		    if (found)
+		      continue;
+
+		    /* Add it to the list of includes seen so far and
+		       allocate more include space if necessary.  */
+		    psymtab_include_list[includes_used++] = namestring;
+		    if (includes_used >= includes_allocated)
+		      {
+			char **orig = psymtab_include_list;
+
+			psymtab_include_list = (char **)
+			  alloca ((includes_allocated *= 2) *
+				  sizeof (char *));
+			memcpy ((PTR) psymtab_include_list, (PTR) orig,
+				includes_used * sizeof (char *));
+		      }
+		    continue;
+		  }
+
+		if (pst)
+		  {
+		    if (!have_name)
+		      {
+			pst->filename = (char *)
+			  obstack_alloc (&pst->objfile->psymbol_obstack,
+					 strlen (namestring) + 1);
+			strcpy (pst->filename, namestring);
+			have_name = 1;
+			continue;
+		      }
+		    continue;
+		  }
+
+		/* This is a bonafide new source file.
+		   End the current partial symtab and start a new one.  */
+
+		if (pst && past_first_source_file)
+		  {
+		    hpread_end_psymtab (pst, psymtab_include_list,
+					includes_used,
+					(hp_symnum
+					 * sizeof (struct dntt_type_block)),
+					texthigh,
+					dependency_list, dependencies_used);
+		    pst = (struct partial_symtab *) 0;
+		    includes_used = 0;
+		    dependencies_used = 0;
+		  }
+		else
+		  past_first_source_file = 1;
+
+		valu = hpread_get_textlow (i, hp_symnum, objfile, symcount);
+		valu += ANOFFSET (section_offsets, SECT_OFF_TEXT);
+		pst = hpread_start_psymtab (objfile, section_offsets,
+					    namestring, valu,
+					    (hp_symnum
+					     * sizeof (struct dntt_type_block)),
+					    objfile->global_psymbols.next,
+					    objfile->static_psymbols.next);
+		texthigh = valu;
+		have_name = 1;
+		continue;
+	      }
+
+	    case DNTT_TYPE_MODULE:
+	      /* A source file.  It's still unclear to me what the
+	         real difference between a DNTT_TYPE_SRCFILE and DNTT_TYPE_MODULE
+	         is supposed to be.  */
+
+	      /* First end the previous psymtab */
+	      if (pst)
+		{
+		  hpread_end_psymtab (pst, psymtab_include_list, includes_used,
+				      ((hp_symnum - 1)
+				       * sizeof (struct dntt_type_block)),
+				      texthigh,
+				      dependency_list, dependencies_used);
+		  pst = (struct partial_symtab *) 0;
+		  includes_used = 0;
+		  dependencies_used = 0;
+		  have_name = 0;
+		}
+
+	      /* Now begin a new module and a new psymtab for it */
+	      SET_NAMESTRING (dn_bufp, &namestring, objfile);
+	      valu = hpread_get_textlow (i, hp_symnum, objfile, symcount);
+	      valu += ANOFFSET (section_offsets, SECT_OFF_TEXT);
+	      if (!pst)
+		{
+		  pst = hpread_start_psymtab (objfile, section_offsets,
+					      namestring, valu,
+					      (hp_symnum
+					       * sizeof (struct dntt_type_block)),
+					      objfile->global_psymbols.next,
+					      objfile->static_psymbols.next);
+		  texthigh = valu;
+		  have_name = 0;
+		}
+	      continue;
+
+	    case DNTT_TYPE_FUNCTION:
+	    case DNTT_TYPE_ENTRY:
+	      /* The beginning of a function.  DNTT_TYPE_ENTRY may also denote
+	         a secondary entry point.  */
+	      valu = dn_bufp->dfunc.hiaddr + ANOFFSET (section_offsets,
+						       SECT_OFF_TEXT);
+	      if (valu > texthigh)
+		texthigh = valu;
+	      valu = dn_bufp->dfunc.lowaddr +
+		ANOFFSET (section_offsets, SECT_OFF_TEXT);
+	      SET_NAMESTRING (dn_bufp, &namestring, objfile);
+	      if (dn_bufp->dfunc.global)
+		add_psymbol_to_list (namestring, strlen (namestring),
+				     VAR_NAMESPACE, LOC_BLOCK,
+				     &objfile->global_psymbols, valu,
+				     0, language_unknown, objfile);
+	      else
+		add_psymbol_to_list (namestring, strlen (namestring),
+				     VAR_NAMESPACE, LOC_BLOCK,
+				     &objfile->static_psymbols, valu,
+				     0, language_unknown, objfile);
+	      within_function = 1;
+	      continue;
+
+	    case DNTT_TYPE_DOC_FUNCTION:
+	      valu = dn_bufp->ddocfunc.hiaddr + ANOFFSET (section_offsets,
+							  SECT_OFF_TEXT);
+	      if (valu > texthigh)
+		texthigh = valu;
+	      valu = dn_bufp->ddocfunc.lowaddr +
+		ANOFFSET (section_offsets, SECT_OFF_TEXT);
+	      SET_NAMESTRING (dn_bufp, &namestring, objfile);
+	      if (dn_bufp->ddocfunc.global)
+		add_psymbol_to_list (namestring, strlen (namestring),
+				     VAR_NAMESPACE, LOC_BLOCK,
+				     &objfile->global_psymbols, valu,
+				     0, language_unknown, objfile);
+	      else
+		add_psymbol_to_list (namestring, strlen (namestring),
+				     VAR_NAMESPACE, LOC_BLOCK,
+				     &objfile->static_psymbols, valu,
+				     0, language_unknown, objfile);
+	      within_function = 1;
+	      continue;
+
+	    case DNTT_TYPE_BEGIN:
+	    case DNTT_TYPE_END:
+	      /* We don't check MODULE end here, because there can be
+	         symbols beyond the module end which properly belong to the
+	         current psymtab -- so we wait till the next MODULE start */
+
+
+#ifdef QUICK_LOOK_UP
+	      if (scan_start == hp_symnum
+		  && symcount == hp_symnum + 1)
+		{
+		  /* If there are NO globals in an executable,
+		     PXDB's index to the globals will point to
+		     the last record in the file, which is
+		     probably an END MODULE, i.e. this record.
+		     ignore it and be done! */
+		  continue;
+		}
+#endif /* QUICK_LOOK_UP */
+
+	      /* Scope block begin/end.  We only care about function
+	         and file blocks right now.  */
+
+	      if ((dn_bufp->dend.endkind == DNTT_TYPE_FUNCTION) ||
+		  (dn_bufp->dend.endkind == DNTT_TYPE_DOC_FUNCTION))
+		within_function = 0;
+	      continue;
+
+	    case DNTT_TYPE_SVAR:
+	    case DNTT_TYPE_DVAR:
+	    case DNTT_TYPE_TYPEDEF:
+	    case DNTT_TYPE_TAGDEF:
+	      {
+		/* Variables, typedefs an the like.  */
+		enum address_class storage;
+		namespace_enum namespace;
+
+		/* Don't add locals to the partial symbol table.  */
+		if (within_function
+		    && (dn_bufp->dblock.kind == DNTT_TYPE_SVAR
+			|| dn_bufp->dblock.kind == DNTT_TYPE_DVAR))
+		  continue;
+
+		/* TAGDEFs go into the structure namespace.  */
+		if (dn_bufp->dblock.kind == DNTT_TYPE_TAGDEF)
+		  namespace = STRUCT_NAMESPACE;
+		else
+		  namespace = VAR_NAMESPACE;
+
+		/* What kind of "storage" does this use?  */
+		if (dn_bufp->dblock.kind == DNTT_TYPE_SVAR)
+		  storage = LOC_STATIC;
+		else if (dn_bufp->dblock.kind == DNTT_TYPE_DVAR
+			 && dn_bufp->ddvar.regvar)
+		  storage = LOC_REGISTER;
+		else if (dn_bufp->dblock.kind == DNTT_TYPE_DVAR)
+		  storage = LOC_LOCAL;
+		else
+		  storage = LOC_UNDEF;
+
+		SET_NAMESTRING (dn_bufp, &namestring, objfile);
+		if (!pst)
+		  {
+		    pst = hpread_start_psymtab (objfile, section_offsets,
+						"globals", 0,
+						(hp_symnum
+						 * sizeof (struct dntt_type_block)),
+						objfile->global_psymbols.next,
+						objfile->static_psymbols.next);
+		  }
+
+		/* Compute address of the data symbol */
+		valu = dn_bufp->dsvar.location;
+		/* Relocate in case it's in a shared library */
+		if (storage == LOC_STATIC)
+		  valu += ANOFFSET (section_offsets, SECT_OFF_DATA);
+
+		/* Luckily, dvar, svar, typedef, and tagdef all
+		   have their "global" bit in the same place, so it works
+		   (though it's bad programming practice) to reference
+		   "dsvar.global" even though we may be looking at
+		   any of the above four types. */
+		if (dn_bufp->dsvar.global)
+		  {
+		    add_psymbol_to_list (namestring, strlen (namestring),
+					 namespace, storage,
+					 &objfile->global_psymbols,
+					 valu,
+					 0, language_unknown, objfile);
+		  }
+		else
+		  {
+		    add_psymbol_to_list (namestring, strlen (namestring),
+					 namespace, storage,
+					 &objfile->static_psymbols,
+					 valu,
+					 0, language_unknown, objfile);
+		  }
+
+		/* For TAGDEF's, the above code added the tagname to the
+		   struct namespace. This will cause tag "t" to be found
+		   on a reference of the form "(struct t) x". But for
+		   C++ classes, "t" will also be a typename, which we
+		   want to find on a reference of the form "ptype t".
+		   Therefore, we also add "t" to the var namespace.
+		   Do the same for enum's due to the way aCC generates
+		   debug info for these (see more extended comment
+		   in hp-symtab-read.c).
+		   We do the same for templates, so that "ptype t"
+		   where "t" is a template also works. */
+		if (dn_bufp->dblock.kind == DNTT_TYPE_TAGDEF &&
+		  dn_bufp->dtype.type.dnttp.index < LNTT_SYMCOUNT (objfile))
+		  {
+		    int global = dn_bufp->dtag.global;
+		    /* Look ahead to see if it's a C++ class */
+		    dn_bufp = hpread_get_lntt (dn_bufp->dtype.type.dnttp.index, objfile);
+		    if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS ||
+			dn_bufp->dblock.kind == DNTT_TYPE_ENUM ||
+			dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE)
+		      {
+			if (global)
+			  {
+			    add_psymbol_to_list (namestring, strlen (namestring),
+						 VAR_NAMESPACE, storage,
+						 &objfile->global_psymbols,
+						 dn_bufp->dsvar.location,
+						 0, language_unknown, objfile);
+			  }
+			else
+			  {
+			    add_psymbol_to_list (namestring, strlen (namestring),
+						 VAR_NAMESPACE, storage,
+						 &objfile->static_psymbols,
+						 dn_bufp->dsvar.location,
+						 0, language_unknown, objfile);
+			  }
+		      }
+		  }
+	      }
+	      continue;
+
+	    case DNTT_TYPE_MEMENUM:
+	    case DNTT_TYPE_CONST:
+	      /* Constants and members of enumerated types.  */
+	      SET_NAMESTRING (dn_bufp, &namestring, objfile);
+	      if (!pst)
+		{
+		  pst = hpread_start_psymtab (objfile, section_offsets,
+					      "globals", 0,
+					      (hp_symnum
+					       * sizeof (struct dntt_type_block)),
+					      objfile->global_psymbols.next,
+					      objfile->static_psymbols.next);
+		}
+	      if (dn_bufp->dconst.global)
+		add_psymbol_to_list (namestring, strlen (namestring),
+				     VAR_NAMESPACE, LOC_CONST,
+				     &objfile->global_psymbols, 0,
+				     0, language_unknown, objfile);
+	      else
+		add_psymbol_to_list (namestring, strlen (namestring),
+				     VAR_NAMESPACE, LOC_CONST,
+				     &objfile->static_psymbols, 0,
+				     0, language_unknown, objfile);
+	      continue;
+	    default:
+	      continue;
+	    }
+	}
+    }
+
+  /* End any pending partial symbol table. */
+  if (pst)
+    {
+      hpread_end_psymtab (pst, psymtab_include_list, includes_used,
+			  hp_symnum * sizeof (struct dntt_type_block),
+			  0, dependency_list, dependencies_used);
+    }
+
+  discard_cleanups (old_chain);
+}
+
+/* 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. */
+
+void
+hpread_symfile_finish (objfile)
+     struct objfile *objfile;
+{
+  if (objfile->sym_private != NULL)
+    {
+      mfree (objfile->md, objfile->sym_private);
+    }
+}
+
+
+/* The remaining functions are all for internal use only.  */
+
+/* Various small functions to get entries in the debug symbol sections.  */
+
+union dnttentry *
+hpread_get_lntt (index, objfile)
+     int index;
+     struct objfile *objfile;
+{
+  return (union dnttentry *)
+    &(LNTT (objfile)[(index * sizeof (struct dntt_type_block))]);
+}
+
+static union dnttentry *
+hpread_get_gntt (index, objfile)
+     int index;
+     struct objfile *objfile;
+{
+  return (union dnttentry *)
+    &(GNTT (objfile)[(index * sizeof (struct dntt_type_block))]);
+}
+
+union sltentry *
+hpread_get_slt (index, objfile)
+     int index;
+     struct objfile *objfile;
+{
+  return (union sltentry *) &(SLT (objfile)[index * sizeof (union sltentry)]);
+}
+
+/* Get the low address associated with some symbol (typically the start
+   of a particular source file or module).  Since that information is not
+   stored as part of the DNTT_TYPE_MODULE or DNTT_TYPE_SRCFILE symbol we must infer it from
+   the existance of DNTT_TYPE_FUNCTION symbols.  */
+
+static unsigned long
+hpread_get_textlow (global, index, objfile, symcount)
+     int global;
+     int index;
+     struct objfile *objfile;
+     int symcount;
+{
+  union dnttentry *dn_bufp;
+  struct minimal_symbol *msymbol;
+
+  /* Look for a DNTT_TYPE_FUNCTION symbol.  */
+  if (index < symcount)		/* symcount is the number of symbols in */
+    {				/*   the dbinfo, LNTT table */
+      do
+	{
+	  if (global)
+	    dn_bufp = hpread_get_gntt (index++, objfile);
+	  else
+	    dn_bufp = hpread_get_lntt (index++, objfile);
+	}
+      while (dn_bufp->dblock.kind != DNTT_TYPE_FUNCTION
+	     && dn_bufp->dblock.kind != DNTT_TYPE_DOC_FUNCTION
+	     && dn_bufp->dblock.kind != DNTT_TYPE_END
+	     && index < symcount);
+    }
+
+  /* Avoid going past a DNTT_TYPE_END when looking for a DNTT_TYPE_FUNCTION.  This
+     might happen when a sourcefile has no functions.  */
+  if (dn_bufp->dblock.kind == DNTT_TYPE_END)
+    return 0;
+
+  /* Avoid going past the end of the LNTT file */
+  if (index == symcount)
+    return 0;
+
+  /* The minimal symbols are typically more accurate for some reason.  */
+  if (dn_bufp->dblock.kind == DNTT_TYPE_FUNCTION)
+    msymbol = lookup_minimal_symbol (dn_bufp->dfunc.name + VT (objfile), NULL,
+				     objfile);
+  else				/* must be a DNTT_TYPE_DOC_FUNCTION */
+    msymbol = lookup_minimal_symbol (dn_bufp->ddocfunc.name + VT (objfile), NULL,
+				     objfile);
+
+  if (msymbol)
+    return SYMBOL_VALUE_ADDRESS (msymbol);
+  else
+    return dn_bufp->dfunc.lowaddr;
+}
+
+/* Allocate and partially fill a partial symtab.  It will be
+   completely filled at the end of the symbol list.
+
+   SYMFILE_NAME is the name of the symbol-file we are reading from, and ADDR
+   is the address relative to which its symbols are (incremental) or 0
+   (normal). */
+
+static struct partial_symtab *
+hpread_start_psymtab (objfile, section_offsets,
+		      filename, textlow, ldsymoff, global_syms, static_syms)
+     struct objfile *objfile;
+     struct section_offsets *section_offsets;
+     char *filename;
+     CORE_ADDR textlow;
+     int ldsymoff;
+     struct partial_symbol **global_syms;
+     struct partial_symbol **static_syms;
+{
+  int offset = ANOFFSET (section_offsets, SECT_OFF_TEXT);
+  extern void hpread_psymtab_to_symtab ();
+  struct partial_symtab *result =
+  start_psymtab_common (objfile, section_offsets,
+			filename, textlow, global_syms, static_syms);
+
+  result->textlow += offset;
+  result->read_symtab_private = (char *)
+    obstack_alloc (&objfile->psymbol_obstack, sizeof (struct symloc));
+  LDSYMOFF (result) = ldsymoff;
+  result->read_symtab = hpread_psymtab_to_symtab;
+
+  return result;
+}
+
+
+/* Close off the current usage of PST.  
+   Returns PST or NULL if the partial symtab was empty and thrown away.
+
+   capping_symbol_offset  --Byte index in LNTT or GNTT of the
+   last symbol processed during the build
+   of the previous pst.
+
+   FIXME:  List variables and peculiarities of same.  */
+
+static struct partial_symtab *
+hpread_end_psymtab (pst, include_list, num_includes, capping_symbol_offset,
+		    capping_text, dependency_list, number_dependencies)
+     struct partial_symtab *pst;
+     char **include_list;
+     int num_includes;
+     int capping_symbol_offset;
+     CORE_ADDR capping_text;
+     struct partial_symtab **dependency_list;
+     int number_dependencies;
+{
+  int i;
+  struct objfile *objfile = pst->objfile;
+  int offset = ANOFFSET (pst->section_offsets, SECT_OFF_TEXT);
+
+#ifdef DUMPING
+  /* Turn on to see what kind of a psymtab we've built. */
+  static int dumping = 0;
+#endif
+
+  if (capping_symbol_offset != -1)
+    LDSYMLEN (pst) = capping_symbol_offset - LDSYMOFF (pst);
+  else
+    LDSYMLEN (pst) = 0;
+  pst->texthigh = capping_text + offset;
+
+  pst->n_global_syms =
+    objfile->global_psymbols.next - (objfile->global_psymbols.list + pst->globals_offset);
+  pst->n_static_syms =
+    objfile->static_psymbols.next - (objfile->static_psymbols.list + pst->statics_offset);
+
+#ifdef DUMPING
+  if (dumping)
+    {
+      printf ("\nPst %s, LDSYMOFF %x (%x), LDSYMLEN %x (%x), globals %d, statics %d\n",
+	      pst->filename,
+	      LDSYMOFF (pst),
+	      LDSYMOFF (pst) / sizeof (struct dntt_type_block),
+	      LDSYMLEN (pst),
+	      LDSYMLEN (pst) / sizeof (struct dntt_type_block),
+	      pst->n_global_syms, pst->n_static_syms);
+    }
+#endif
+
+  pst->number_of_dependencies = number_dependencies;
+  if (number_dependencies)
+    {
+      pst->dependencies = (struct partial_symtab **)
+	obstack_alloc (&objfile->psymbol_obstack,
+		       number_dependencies * sizeof (struct partial_symtab *));
+      memcpy (pst->dependencies, dependency_list,
+	      number_dependencies * sizeof (struct partial_symtab *));
+    }
+  else
+    pst->dependencies = 0;
+
+  for (i = 0; i < num_includes; i++)
+    {
+      struct partial_symtab *subpst =
+      allocate_psymtab (include_list[i], objfile);
+
+      subpst->section_offsets = pst->section_offsets;
+      subpst->read_symtab_private =
+	(char *) obstack_alloc (&objfile->psymbol_obstack,
+				sizeof (struct symloc));
+      LDSYMOFF (subpst) =
+	LDSYMLEN (subpst) =
+	subpst->textlow =
+	subpst->texthigh = 0;
+
+      /* We could save slight bits of space by only making one of these,
+         shared by the entire set of include files.  FIXME-someday.  */
+      subpst->dependencies = (struct partial_symtab **)
+	obstack_alloc (&objfile->psymbol_obstack,
+		       sizeof (struct partial_symtab *));
+      subpst->dependencies[0] = pst;
+      subpst->number_of_dependencies = 1;
+
+      subpst->globals_offset =
+	subpst->n_global_syms =
+	subpst->statics_offset =
+	subpst->n_static_syms = 0;
+
+      subpst->readin = 0;
+      subpst->symtab = 0;
+      subpst->read_symtab = pst->read_symtab;
+    }
+
+  sort_pst_symbols (pst);
+
+  /* If there is already a psymtab or symtab for a file of this name, remove it.
+     (If there is a symtab, more drastic things also happen.)
+     This happens in VxWorks.  */
+  free_named_symtabs (pst->filename);
+
+  if (num_includes == 0
+      && number_dependencies == 0
+      && pst->n_global_syms == 0
+      && pst->n_static_syms == 0)
+    {
+      /* Throw away this psymtab, it's empty.  We can't deallocate it, since
+         it is on the obstack, but we can forget to chain it on the list. 
+         Empty psymtabs happen as a result of header files which don't have
+         any symbols in them.  There can be a lot of them.  But this check
+         is wrong, in that a psymtab with N_SLINE entries but nothing else
+         is not empty, but we don't realize that.  Fixing that without slowing
+         things down might be tricky.
+         It's also wrong if we're using the quick look-up tables, as
+         we can get empty psymtabs from modules with no routines in
+         them. */
+
+      discard_psymtab (pst);
+
+      /* Indicate that psymtab was thrown away.  */
+      pst = (struct partial_symtab *) NULL;
+
+    }
+  return pst;
+}
+
+
+/* End of hp-psymtab-read.c */
+
+/* Set indentation to 4 spaces for Emacs; this file is
+   mostly non-GNU-ish in its style :-( */
+#if 0
+***Local Variables:
+***c - basic - offset:4
+*** End:
+#endif
+
+