1/* Read hp debug symbols and convert to internal format, for GDB.
2   Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
3   2002, 2003, 2004 Free Software Foundation, Inc.
4
5   This file is part of GDB.
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 2 of the License, or
10   (at your option) any later version.
11
12   This program is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with this program; if not, write to the Free Software
19   Foundation, Inc., 59 Temple Place - Suite 330,
20   Boston, MA 02111-1307, USA.
21
22   Written by the Center for Software Science at the University of Utah
23   and by Cygnus Support.  */
24
25#include "defs.h"
26#include "bfd.h"
27#include "gdb_string.h"
28#include "hp-symtab.h"
29#include "syms.h"
30#include "symtab.h"
31#include "symfile.h"
32#include "objfiles.h"
33#include "buildsym.h"
34#include "complaints.h"
35#include "gdb-stabs.h"
36#include "gdbtypes.h"
37#include "demangle.h"
38#include "somsolib.h"
39#include "gdb_assert.h"
40#include "hppa-tdep.h"
41
42/* Private information attached to an objfile which we use to find
43   and internalize the HP C debug symbols within that objfile.  */
44
45struct hpread_symfile_info
46  {
47    /* The contents of each of the debug sections (there are 4 of them).  */
48    char *gntt;
49    char *lntt;
50    char *slt;
51    char *vt;
52
53    /* We keep the size of the $VT$ section for range checking.  */
54    unsigned int vt_size;
55
56    /* Some routines still need to know the number of symbols in the
57       main debug sections ($LNTT$ and $GNTT$). */
58    unsigned int lntt_symcount;
59    unsigned int gntt_symcount;
60
61    /* To keep track of all the types we've processed.  */
62    struct type **dntt_type_vector;
63    int dntt_type_vector_length;
64
65    /* Keeps track of the beginning of a range of source lines.  */
66    sltpointer sl_index;
67
68    /* Some state variables we'll need.  */
69    int within_function;
70
71    /* Keep track of the current function's address.  We may need to look
72       up something based on this address.  */
73    unsigned int current_function_value;
74  };
75
76/* Accessor macros to get at the fields.  */
77#define HPUX_SYMFILE_INFO(o) \
78  ((struct hpread_symfile_info *)((o)->sym_private))
79#define GNTT(o)                 (HPUX_SYMFILE_INFO(o)->gntt)
80#define LNTT(o)                 (HPUX_SYMFILE_INFO(o)->lntt)
81#define SLT(o)                  (HPUX_SYMFILE_INFO(o)->slt)
82#define VT(o)                   (HPUX_SYMFILE_INFO(o)->vt)
83#define VT_SIZE(o)              (HPUX_SYMFILE_INFO(o)->vt_size)
84#define LNTT_SYMCOUNT(o)        (HPUX_SYMFILE_INFO(o)->lntt_symcount)
85#define GNTT_SYMCOUNT(o)        (HPUX_SYMFILE_INFO(o)->gntt_symcount)
86#define DNTT_TYPE_VECTOR(o)     (HPUX_SYMFILE_INFO(o)->dntt_type_vector)
87#define DNTT_TYPE_VECTOR_LENGTH(o) \
88  (HPUX_SYMFILE_INFO(o)->dntt_type_vector_length)
89#define SL_INDEX(o)             (HPUX_SYMFILE_INFO(o)->sl_index)
90#define WITHIN_FUNCTION(o)      (HPUX_SYMFILE_INFO(o)->within_function)
91#define CURRENT_FUNCTION_VALUE(o) (HPUX_SYMFILE_INFO(o)->current_function_value)
92
93
94/* We put a pointer to this structure in the read_symtab_private field
95   of the psymtab.  */
96
97struct symloc
98  {
99    /* The offset within the file symbol table of first local symbol for
100       this file.  */
101
102    int ldsymoff;
103
104    /* Length (in bytes) of the section of the symbol table devoted to
105       this file's symbols (actually, the section bracketed may contain
106       more than just this file's symbols).  If ldsymlen is 0, the only
107       reason for this thing's existence is the dependency list.
108       Nothing else will happen when it is read in.  */
109
110    int ldsymlen;
111  };
112
113#define LDSYMOFF(p) (((struct symloc *)((p)->read_symtab_private))->ldsymoff)
114#define LDSYMLEN(p) (((struct symloc *)((p)->read_symtab_private))->ldsymlen)
115#define SYMLOC(p) ((struct symloc *)((p)->read_symtab_private))
116
117/* Complaints about the symbols we have encountered.  */
118static void
119lbrac_unmatched_complaint (int arg1)
120{
121  complaint (&symfile_complaints, "unmatched N_LBRAC before symtab pos %d",
122	     arg1);
123}
124
125static void
126lbrac_mismatch_complaint (int arg1)
127{
128  complaint (&symfile_complaints,
129	     "N_LBRAC/N_RBRAC symbol mismatch at symtab pos %d", arg1);
130}
131
132/* To generate dumping code, uncomment this define.  The dumping
133   itself is controlled by routine-local statics called "dumping". */
134/* #define DUMPING         1 */
135
136/* To use the quick look-up tables, uncomment this define. */
137#define QUICK_LOOK_UP      1
138
139/* To call PXDB to process un-processed files, uncomment this define. */
140#define USE_PXDB           1
141
142/* Forward procedure declarations */
143
144/* Used in somread.c.  */
145void hpread_symfile_init (struct objfile *);
146
147void do_pxdb (bfd *);
148
149void hpread_build_psymtabs (struct objfile *, int);
150
151void hpread_symfile_finish (struct objfile *);
152
153static void set_namestring (union dnttentry *sym, char **namep,
154                            struct objfile *objfile);
155
156static union dnttentry *hpread_get_gntt (int, struct objfile *);
157
158static union dnttentry *hpread_get_lntt (int index, struct objfile *objfile);
159
160
161static unsigned long hpread_get_textlow (int, int, struct objfile *, int);
162
163static struct partial_symtab *hpread_start_psymtab
164  (struct objfile *, char *, CORE_ADDR, int,
165   struct partial_symbol **, struct partial_symbol **);
166
167static struct partial_symtab *hpread_end_psymtab
168  (struct partial_symtab *, char **, int, int, CORE_ADDR,
169   struct partial_symtab **, int);
170
171static unsigned long hpread_get_scope_start (sltpointer, struct objfile *);
172
173static unsigned long hpread_get_line (sltpointer, struct objfile *);
174
175static CORE_ADDR hpread_get_location (sltpointer, struct objfile *);
176
177static int hpread_has_name (enum dntt_entry_type kind);
178
179static void hpread_psymtab_to_symtab_1 (struct partial_symtab *);
180
181static void hpread_psymtab_to_symtab (struct partial_symtab *);
182
183static struct symtab *hpread_expand_symtab
184  (struct objfile *, int, int, CORE_ADDR, int,
185   struct section_offsets *, char *);
186
187static int hpread_type_translate (dnttpointer);
188
189static struct type **hpread_lookup_type (dnttpointer, struct objfile *);
190
191static struct type *hpread_alloc_type (dnttpointer, struct objfile *);
192
193static struct type *hpread_read_enum_type
194  (dnttpointer, union dnttentry *, struct objfile *);
195
196static struct type *hpread_read_function_type
197  (dnttpointer, union dnttentry *, struct objfile *, int);
198
199static struct type *hpread_read_doc_function_type
200  (dnttpointer, union dnttentry *, struct objfile *, int);
201
202static struct type *hpread_read_struct_type
203  (dnttpointer, union dnttentry *, struct objfile *);
204
205static struct type *hpread_get_nth_template_arg (struct objfile *, int);
206
207static struct type *hpread_read_templ_arg_type
208  (dnttpointer, union dnttentry *, struct objfile *, char *);
209
210static struct type *hpread_read_set_type
211  (dnttpointer, union dnttentry *, struct objfile *);
212
213static struct type *hpread_read_array_type
214  (dnttpointer, union dnttentry *dn_bufp, struct objfile *objfile);
215
216static struct type *hpread_read_subrange_type
217  (dnttpointer, union dnttentry *, struct objfile *);
218
219static struct type *hpread_type_lookup (dnttpointer, struct objfile *);
220
221static sltpointer hpread_record_lines
222  (struct subfile *, sltpointer, sltpointer, struct objfile *, CORE_ADDR);
223
224static void hpread_process_one_debug_symbol
225  (union dnttentry *, char *, struct section_offsets *,
226   struct objfile *, CORE_ADDR, int, char *, int, int *);
227
228static int hpread_get_scope_depth (union dnttentry *, struct objfile *, int);
229
230static void fix_static_member_physnames
231  (struct type *, char *, struct objfile *);
232
233static void fixup_class_method_type
234  (struct type *, struct type *, struct objfile *);
235
236static void hpread_adjust_bitoffsets (struct type *, int);
237
238static int hpread_adjust_stack_address (CORE_ADDR func_addr);
239
240static dnttpointer hpread_get_next_skip_over_anon_unions
241  (int, dnttpointer, union dnttentry **, struct objfile *);
242
243
244/* Static used to indicate a class type that requires a
245   fix-up of one of its method types */
246static struct type *fixup_class = NULL;
247
248/* Static used to indicate the method type that is to be
249   used to fix-up the type for fixup_class */
250static struct type *fixup_method = NULL;
251
252#ifdef USE_PXDB
253
254/* NOTE use of system files!  May not be portable. */
255
256#define PXDB_SVR4 "/opt/langtools/bin/pxdb"
257#define PXDB_BSD  "/usr/bin/pxdb"
258
259#include <stdlib.h>
260#include "gdb_string.h"
261
262/* check for the existence of a file, given its full pathname */
263static int
264file_exists (char *filename)
265{
266  if (filename)
267    return (access (filename, F_OK) == 0);
268  return 0;
269}
270
271
272/* Translate from the "hp_language" enumeration in hp-symtab.h
273   used in the debug info to gdb's generic enumeration in defs.h. */
274static enum language
275trans_lang (enum hp_language in_lang)
276{
277  if (in_lang == HP_LANGUAGE_C)
278    return language_c;
279
280  else if (in_lang == HP_LANGUAGE_CPLUSPLUS)
281    return language_cplus;
282
283  else if (in_lang == HP_LANGUAGE_FORTRAN)
284    return language_fortran;
285
286  else
287    return language_unknown;
288}
289
290static char main_string[] = "main";
291
292
293/* Given the native debug symbol SYM, set NAMEP to the name associated
294   with the debug symbol.  Note we may be called with a debug symbol which
295   has no associated name, in that case we return an empty string.  */
296
297static void
298set_namestring (union dnttentry *sym, char **namep, struct objfile *objfile)
299{
300  /* Note that we "know" that the name for any symbol is always in the same
301     place.  Hence we don't have to conditionalize on the symbol type.  */
302  if (! hpread_has_name (sym->dblock.kind))
303    *namep = "";
304  else if ((unsigned) sym->dsfile.name >= VT_SIZE (objfile))
305    {
306      complaint (&symfile_complaints, "bad string table offset in symbol %d",
307		 symnum);
308      *namep = "";
309    }
310  else
311    *namep = sym->dsfile.name + VT (objfile);
312}
313
314/* Call PXDB to process our file.
315
316   Approach copied from DDE's "dbgk_run_pxdb".  Note: we
317   don't check for BSD location of pxdb, nor for existence
318   of pxdb itself, etc.
319
320   NOTE: uses system function and string functions directly.
321
322   Return value: 1 if ok, 0 if not */
323static int
324hpread_call_pxdb (const char *file_name)
325{
326  char *p;
327  int status;
328  int retval;
329
330  if (file_exists (PXDB_SVR4))
331    {
332      p = xmalloc (strlen (PXDB_SVR4) + strlen (file_name) + 2);
333      strcpy (p, PXDB_SVR4);
334      strcat (p, " ");
335      strcat (p, file_name);
336
337      warning ("File not processed by pxdb--about to process now.\n");
338      status = system (p);
339
340      retval = (status == 0);
341    }
342  else
343    {
344      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);
345
346      retval = 0;
347    }
348  return retval;
349}				/* hpread_call_pxdb */
350
351
352/* Return 1 if the file turns out to need pre-processing
353   by PXDB, and we have thus called PXDB to do this processing
354   and the file therefore needs to be re-loaded.  Otherwise
355   return 0. */
356static int
357hpread_pxdb_needed (bfd *sym_bfd)
358{
359  asection *pinfo_section, *debug_section, *header_section;
360  unsigned int do_pxdb;
361  char *buf;
362  bfd_size_type header_section_size;
363
364  unsigned long tmp;
365  unsigned int pxdbed;
366
367  header_section = bfd_get_section_by_name (sym_bfd, "$HEADER$");
368  if (!header_section)
369    {
370      return 0;			/* No header at all, can't recover... */
371    }
372
373  debug_section = bfd_get_section_by_name (sym_bfd, "$DEBUG$");
374  pinfo_section = bfd_get_section_by_name (sym_bfd, "$PINFO$");
375
376  if (pinfo_section && !debug_section)
377    {
378      /* Debug info with DOC, has different header format.
379         this only happens if the file was pxdbed and compiled optimized
380         otherwise the PINFO section is not there. */
381      header_section_size = bfd_section_size (objfile->obfd, header_section);
382
383      if (header_section_size == (bfd_size_type) sizeof (DOC_info_PXDB_header))
384	{
385	  buf = alloca (sizeof (DOC_info_PXDB_header));
386	  memset (buf, 0, sizeof (DOC_info_PXDB_header));
387
388	  if (!bfd_get_section_contents (sym_bfd,
389					 header_section,
390					 buf, 0,
391					 header_section_size))
392	    error ("bfd_get_section_contents\n");
393
394	  tmp = bfd_get_32 (sym_bfd, (bfd_byte *) (buf + sizeof (int) * 4));
395	  pxdbed = (tmp >> 31) & 0x1;
396
397	  if (!pxdbed)
398	    error ("file debug header info invalid\n");
399	  do_pxdb = 0;
400	}
401
402      else
403	error ("invalid $HEADER$ size in executable \n");
404    }
405
406  else
407    {
408
409      /* this can be three different cases:
410         1. pxdbed and not doc
411         - DEBUG and HEADER sections are there
412         - header is PXDB_header type
413         - pxdbed flag is set to 1
414
415         2. not pxdbed and doc
416         - DEBUG and HEADER  sections are there
417         - header is DOC_info_header type
418         - pxdbed flag is set to 0
419
420         3. not pxdbed and not doc
421         - DEBUG and HEADER sections are there
422         - header is XDB_header type
423         - pxdbed flag is set to 0
424
425         NOTE: the pxdbed flag is meaningful also in the not
426         already pxdb processed version of the header,
427         because in case on non-already processed by pxdb files
428         that same bit in the header would be always zero.
429         Why? Because the bit is the leftmost bit of a word
430         which contains a 'length' which is always a positive value
431         so that bit is never set to 1 (otherwise it would be negative)
432
433         Given the above, we have two choices : either we ignore the
434         size of the header itself and just look at the pxdbed field,
435         or we check the size and then we (for safety and paranoia related
436         issues) check the bit.
437         The first solution is used by DDE, the second by PXDB itself.
438         I am using the second one here, because I already wrote it,
439         and it is the end of a long day.
440         Also, using the first approach would still involve size issues
441         because we need to read in the contents of the header section, and
442         give the correct amount of stuff we want to read to the
443         get_bfd_section_contents function.  */
444
445      /* decide which case depending on the size of the header section.
446         The size is as defined in hp-symtab.h  */
447
448      header_section_size = bfd_section_size (objfile->obfd, header_section);
449
450      if (header_section_size == (bfd_size_type) sizeof (PXDB_header))	/* pxdb and not doc */
451	{
452
453	  buf = alloca (sizeof (PXDB_header));
454	  memset (buf, 0, sizeof (PXDB_header));
455	  if (!bfd_get_section_contents (sym_bfd,
456					 header_section,
457					 buf, 0,
458					 header_section_size))
459	    error ("bfd_get_section_contents\n");
460
461	  tmp = bfd_get_32 (sym_bfd, (bfd_byte *) (buf + sizeof (int) * 3));
462	  pxdbed = (tmp >> 31) & 0x1;
463
464	  if (pxdbed)
465	    do_pxdb = 0;
466	  else
467	    error ("file debug header invalid\n");
468	}
469      else			/*not pxdbed and doc OR not pxdbed and non doc */
470	do_pxdb = 1;
471    }
472
473  if (do_pxdb)
474    {
475      return 1;
476    }
477  else
478    {
479      return 0;
480    }
481}				/* hpread_pxdb_needed */
482
483#endif
484
485/* Check whether the file needs to be preprocessed by pxdb.
486   If so, call pxdb. */
487
488void
489do_pxdb (bfd *sym_bfd)
490{
491  /* The following code is HP-specific.  The "right" way of
492     doing this is unknown, but we bet would involve a target-
493     specific pre-file-load check using a generic mechanism. */
494
495  /* This code will not be executed if the file is not in SOM
496     format (i.e. if compiled with gcc) */
497  if (hpread_pxdb_needed (sym_bfd))
498    {
499      /*This file has not been pre-processed. Preprocess now */
500
501      if (hpread_call_pxdb (sym_bfd->filename))
502	{
503	  /* The call above has changed the on-disk file,
504	     we can close the file anyway, because the
505	     symbols will be reread in when the target is run */
506	  bfd_close (sym_bfd);
507	}
508    }
509}
510
511
512
513#ifdef QUICK_LOOK_UP
514
515/* Code to handle quick lookup-tables follows. */
516
517
518/* Some useful macros */
519#define VALID_FILE(i)   ((i) < pxdb_header_p->fd_entries)
520#define VALID_MODULE(i) ((i) < pxdb_header_p->md_entries)
521#define VALID_PROC(i)   ((i) < pxdb_header_p->pd_entries)
522#define VALID_CLASS(i)  ((i) < pxdb_header_p->cd_entries)
523
524#define FILE_START(i)    (qFD[i].adrStart)
525#define MODULE_START(i) (qMD[i].adrStart)
526#define PROC_START(i)    (qPD[i].adrStart)
527
528#define FILE_END(i)   (qFD[i].adrEnd)
529#define MODULE_END(i) (qMD[i].adrEnd)
530#define PROC_END(i)   (qPD[i].adrEnd)
531
532#define FILE_ISYM(i)   (qFD[i].isym)
533#define MODULE_ISYM(i) (qMD[i].isym)
534#define PROC_ISYM(i)   (qPD[i].isym)
535
536#define VALID_CURR_FILE    (curr_fd < pxdb_header_p->fd_entries)
537#define VALID_CURR_MODULE  (curr_md < pxdb_header_p->md_entries)
538#define VALID_CURR_PROC    (curr_pd < pxdb_header_p->pd_entries)
539#define VALID_CURR_CLASS   (curr_cd < pxdb_header_p->cd_entries)
540
541#define CURR_FILE_START     (qFD[curr_fd].adrStart)
542#define CURR_MODULE_START   (qMD[curr_md].adrStart)
543#define CURR_PROC_START     (qPD[curr_pd].adrStart)
544
545#define CURR_FILE_END    (qFD[curr_fd].adrEnd)
546#define CURR_MODULE_END  (qMD[curr_md].adrEnd)
547#define CURR_PROC_END    (qPD[curr_pd].adrEnd)
548
549#define CURR_FILE_ISYM    (qFD[curr_fd].isym)
550#define CURR_MODULE_ISYM  (qMD[curr_md].isym)
551#define CURR_PROC_ISYM    (qPD[curr_pd].isym)
552
553#define TELL_OBJFILE                                      \
554            do {                                          \
555               if( !told_objfile ) {                      \
556                   told_objfile = 1;                      \
557                   warning ("\nIn object file \"%s\":\n", \
558                            objfile->name);               \
559               }                                          \
560            } while (0)
561
562
563
564/* Keeping track of the start/end symbol table (LNTT) indices of
565   psymtabs created so far */
566
567typedef struct
568{
569  int start;
570  int end;
571}
572pst_syms_struct;
573
574static pst_syms_struct *pst_syms_array = 0;
575
576static int pst_syms_count = 0;
577static int pst_syms_size = 0;
578
579/* used by the TELL_OBJFILE macro */
580static int told_objfile = 0;
581
582/* Set up psymtab symbol index stuff */
583static void
584init_pst_syms (void)
585{
586  pst_syms_count = 0;
587  pst_syms_size = 20;
588  pst_syms_array = (pst_syms_struct *) xmalloc (20 * sizeof (pst_syms_struct));
589}
590
591/* Clean up psymtab symbol index stuff */
592static void
593clear_pst_syms (void)
594{
595  pst_syms_count = 0;
596  pst_syms_size = 0;
597  xfree (pst_syms_array);
598  pst_syms_array = 0;
599}
600
601/* Add information about latest psymtab to symbol index table */
602static void
603record_pst_syms (int start_sym, int end_sym)
604{
605  if (++pst_syms_count > pst_syms_size)
606    {
607      pst_syms_array = (pst_syms_struct *) xrealloc (pst_syms_array,
608			      2 * pst_syms_size * sizeof (pst_syms_struct));
609      pst_syms_size *= 2;
610    }
611  pst_syms_array[pst_syms_count - 1].start = start_sym;
612  pst_syms_array[pst_syms_count - 1].end = end_sym;
613}
614
615/* Find a suitable symbol table index which can serve as the upper
616   bound of a psymtab that starts at INDEX
617
618   This scans backwards in the psymtab symbol index table to find a
619   "hole" in which the given index can fit.  This is a heuristic!!
620   We don't search the entire table to check for multiple holes,
621   we don't care about overlaps, etc.
622
623   Return 0 => not found */
624static int
625find_next_pst_start (int index)
626{
627  int i;
628
629  for (i = pst_syms_count - 1; i >= 0; i--)
630    if (pst_syms_array[i].end <= index)
631      return (i == pst_syms_count - 1) ? 0 : pst_syms_array[i + 1].start - 1;
632
633  if (pst_syms_array[0].start > index)
634    return pst_syms_array[0].start - 1;
635
636  return 0;
637}
638
639
640
641/* Utility functions to find the ending symbol index for a psymtab */
642
643/* Find the next file entry that begins beyond INDEX, and return
644   its starting symbol index - 1.
645   QFD is the file table, CURR_FD is the file entry from where to start,
646   PXDB_HEADER_P as in hpread_quick_traverse (to allow macros to work).
647
648   Return 0 => not found */
649static int
650find_next_file_isym (int index, quick_file_entry *qFD, int curr_fd,
651		     PXDB_header_ptr pxdb_header_p)
652{
653  while (VALID_CURR_FILE)
654    {
655      if (CURR_FILE_ISYM >= index)
656	return CURR_FILE_ISYM - 1;
657      curr_fd++;
658    }
659  return 0;
660}
661
662/* Find the next procedure entry that begins beyond INDEX, and return
663   its starting symbol index - 1.
664   QPD is the procedure table, CURR_PD is the proc entry from where to start,
665   PXDB_HEADER_P as in hpread_quick_traverse (to allow macros to work).
666
667   Return 0 => not found */
668static int
669find_next_proc_isym (int index, quick_procedure_entry *qPD, int curr_pd,
670		     PXDB_header_ptr pxdb_header_p)
671{
672  while (VALID_CURR_PROC)
673    {
674      if (CURR_PROC_ISYM >= index)
675	return CURR_PROC_ISYM - 1;
676      curr_pd++;
677    }
678  return 0;
679}
680
681/* Find the next module entry that begins beyond INDEX, and return
682   its starting symbol index - 1.
683   QMD is the module table, CURR_MD is the modue entry from where to start,
684   PXDB_HEADER_P as in hpread_quick_traverse (to allow macros to work).
685
686   Return 0 => not found */
687static int
688find_next_module_isym (int index, quick_module_entry *qMD, int curr_md,
689		       PXDB_header_ptr pxdb_header_p)
690{
691  while (VALID_CURR_MODULE)
692    {
693      if (CURR_MODULE_ISYM >= index)
694	return CURR_MODULE_ISYM - 1;
695      curr_md++;
696    }
697  return 0;
698}
699
700/* Scan and record partial symbols for all functions starting from index
701   pointed to by CURR_PD_P, and between code addresses START_ADR and END_ADR.
702   Other parameters are explained in comments below. */
703
704/* This used to be inline in hpread_quick_traverse, but now that we do
705   essentially the same thing for two different cases (modules and
706   module-less files), it's better organized in a separate routine,
707   although it does take lots of arguments.  pai/1997-10-08
708
709   CURR_PD_P is the pointer to the current proc index. QPD is the
710   procedure quick lookup table.  MAX_PROCS is the number of entries
711   in the proc. table.  START_ADR is the beginning of the code range
712   for the current psymtab.  end_adr is the end of the code range for
713   the current psymtab.  PST is the current psymtab.  VT_bits is
714   a pointer to the strings table of SOM debug space.  OBJFILE is
715   the current object file. */
716
717static int
718scan_procs (int *curr_pd_p, quick_procedure_entry *qPD, int max_procs,
719	    CORE_ADDR start_adr, CORE_ADDR end_adr, struct partial_symtab *pst,
720	    char *vt_bits, struct objfile *objfile)
721{
722  union dnttentry *dn_bufp;
723  int symbol_count = 0;		/* Total number of symbols in this psymtab */
724  int curr_pd = *curr_pd_p;	/* Convenience variable -- avoid dereferencing pointer all the time */
725
726#ifdef DUMPING
727  /* Turn this on for lots of debugging information in this routine */
728  static int dumping = 0;
729#endif
730
731#ifdef DUMPING
732  if (dumping)
733    {
734      printf ("Scan_procs called, addresses %x to %x, proc %x\n", start_adr, end_adr, curr_pd);
735    }
736#endif
737
738  while ((CURR_PROC_START <= end_adr) && (curr_pd < max_procs))
739    {
740
741      char *rtn_name;		/* mangled name */
742      char *rtn_dem_name;	/* qualified demangled name */
743      char *class_name;
744      int class;
745
746      if ((trans_lang ((enum hp_language) qPD[curr_pd].language) == language_cplus) &&
747	  vt_bits[(long) qPD[curr_pd].sbAlias])		/* not a null string */
748	{
749	  /* Get mangled name for the procedure, and demangle it */
750	  rtn_name = &vt_bits[(long) qPD[curr_pd].sbAlias];
751	  rtn_dem_name = cplus_demangle (rtn_name, DMGL_ANSI | DMGL_PARAMS);
752	}
753      else
754	{
755	  rtn_name = &vt_bits[(long) qPD[curr_pd].sbProc];
756	  rtn_dem_name = NULL;
757	}
758
759      /* Hack to get around HP C/C++ compilers' insistence on providing
760         "_MAIN_" as an alternate name for "main" */
761      if ((strcmp (rtn_name, "_MAIN_") == 0) &&
762	  (strcmp (&vt_bits[(long) qPD[curr_pd].sbProc], "main") == 0))
763	rtn_dem_name = rtn_name = main_string;
764
765#ifdef DUMPING
766      if (dumping)
767	{
768	  printf ("..add %s (demangled %s), index %x to this psymtab\n", rtn_name, rtn_dem_name, curr_pd);
769	}
770#endif
771
772      /* Check for module-spanning routines. */
773      if (CURR_PROC_END > end_adr)
774	{
775	  TELL_OBJFILE;
776	  warning ("Procedure \"%s\" [0x%x] spans file or module boundaries.", rtn_name, curr_pd);
777	}
778
779      /* Add this routine symbol to the list in the objfile.
780         Unfortunately we have to go to the LNTT to determine the
781         correct list to put it on. An alternative (which the
782         code used to do) would be to not check and always throw
783         it on the "static" list. But if we go that route, then
784         symbol_lookup() needs to be tweaked a bit to account
785         for the fact that the function might not be found on
786         the correct list in the psymtab. - RT */
787      dn_bufp = hpread_get_lntt (qPD[curr_pd].isym, objfile);
788      if (dn_bufp->dfunc.global)
789	add_psymbol_with_dem_name_to_list (rtn_name,
790					   strlen (rtn_name),
791					   rtn_dem_name,
792					   strlen (rtn_dem_name),
793					   VAR_DOMAIN,
794					   LOC_BLOCK,	/* "I am a routine"        */
795					   &objfile->global_psymbols,
796					   (qPD[curr_pd].adrStart +	/* Starting address of rtn */
797				 ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))),
798					   0,	/* core addr?? */
799		      trans_lang ((enum hp_language) qPD[curr_pd].language),
800					   objfile);
801      else
802	add_psymbol_with_dem_name_to_list (rtn_name,
803					   strlen (rtn_name),
804					   rtn_dem_name,
805					   strlen (rtn_dem_name),
806					   VAR_DOMAIN,
807					   LOC_BLOCK,	/* "I am a routine"        */
808					   &objfile->static_psymbols,
809					   (qPD[curr_pd].adrStart +	/* Starting address of rtn */
810				 ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))),
811					   0,	/* core addr?? */
812		      trans_lang ((enum hp_language) qPD[curr_pd].language),
813					   objfile);
814
815      symbol_count++;
816      *curr_pd_p = ++curr_pd;	/* bump up count & reflect in caller */
817    }				/* loop over procedures */
818
819#ifdef DUMPING
820  if (dumping)
821    {
822      if (symbol_count == 0)
823	printf ("Scan_procs: no symbols found!\n");
824    }
825#endif
826
827  return symbol_count;
828}
829
830
831/* Traverse the quick look-up tables, building a set of psymtabs.
832
833   This constructs a psymtab for modules and files in the quick lookup
834   tables.
835
836   Mostly, modules correspond to compilation units, so we try to
837   create psymtabs that correspond to modules; however, in some cases
838   a file can result in a compiled object which does not have a module
839   entry for it, so in such cases we create a psymtab for the file.  */
840
841static int
842hpread_quick_traverse (struct objfile *objfile, char *gntt_bits,
843		       char *vt_bits, PXDB_header_ptr pxdb_header_p)
844{
845  struct partial_symtab *pst;
846
847  char *addr;
848
849  quick_procedure_entry *qPD;
850  quick_file_entry *qFD;
851  quick_module_entry *qMD;
852  quick_class_entry *qCD;
853
854  int idx;
855  int i;
856  CORE_ADDR start_adr;		/* current psymtab's starting code addr   */
857  CORE_ADDR end_adr;		/* current psymtab's ending code addr     */
858  CORE_ADDR next_mod_adr;	/* next module's starting code addr    */
859  int curr_pd;			/* current procedure */
860  int curr_fd;			/* current file      */
861  int curr_md;			/* current module    */
862  int start_sym;		/* current psymtab's starting symbol index */
863  int end_sym;			/* current psymtab's ending symbol index   */
864  int max_LNTT_sym_index;
865  int syms_in_pst;
866  B_TYPE *class_entered;
867
868  struct partial_symbol **global_syms;	/* We'll be filling in the "global"   */
869  struct partial_symbol **static_syms;	/* and "static" tables in the objfile
870					   as we go, so we need a pair of
871					   current pointers. */
872
873#ifdef DUMPING
874  /* Turn this on for lots of debugging information in this routine.
875     You get a blow-by-blow account of quick lookup table reading */
876  static int dumping = 0;
877#endif
878
879  pst = (struct partial_symtab *) 0;
880
881  /* Clear out some globals */
882  init_pst_syms ();
883  told_objfile = 0;
884
885  /* Demangling style -- if EDG style already set, don't change it,
886     as HP style causes some problems with the KAI EDG compiler */
887  if (current_demangling_style != edg_demangling)
888    {
889      /* Otherwise, ensure that we are using HP style demangling */
890      set_demangling_style (HP_DEMANGLING_STYLE_STRING);
891    }
892
893  /* First we need to find the starting points of the quick
894     look-up tables in the GNTT. */
895
896  addr = gntt_bits;
897
898  qPD = (quick_procedure_entry_ptr) addr;
899  addr += pxdb_header_p->pd_entries * sizeof (quick_procedure_entry);
900
901#ifdef DUMPING
902  if (dumping)
903    {
904      printf ("\n Printing routines as we see them\n");
905      for (i = 0; VALID_PROC (i); i++)
906	{
907	  idx = (long) qPD[i].sbProc;
908	  printf ("%s %x..%x\n", &vt_bits[idx],
909		  (int) PROC_START (i),
910		  (int) PROC_END (i));
911	}
912    }
913#endif
914
915  qFD = (quick_file_entry_ptr) addr;
916  addr += pxdb_header_p->fd_entries * sizeof (quick_file_entry);
917
918#ifdef DUMPING
919  if (dumping)
920    {
921      printf ("\n Printing files as we see them\n");
922      for (i = 0; VALID_FILE (i); i++)
923	{
924	  idx = (long) qFD[i].sbFile;
925	  printf ("%s %x..%x\n", &vt_bits[idx],
926		  (int) FILE_START (i),
927		  (int) FILE_END (i));
928	}
929    }
930#endif
931
932  qMD = (quick_module_entry_ptr) addr;
933  addr += pxdb_header_p->md_entries * sizeof (quick_module_entry);
934
935#ifdef DUMPING
936  if (dumping)
937    {
938      printf ("\n Printing modules as we see them\n");
939      for (i = 0; i < pxdb_header_p->md_entries; i++)
940	{
941	  idx = (long) qMD[i].sbMod;
942	  printf ("%s\n", &vt_bits[idx]);
943	}
944    }
945#endif
946
947  qCD = (quick_class_entry_ptr) addr;
948  addr += pxdb_header_p->cd_entries * sizeof (quick_class_entry);
949
950#ifdef DUMPING
951  if (dumping)
952    {
953      printf ("\n Printing classes as we see them\n");
954      for (i = 0; VALID_CLASS (i); i++)
955	{
956	  idx = (long) qCD[i].sbClass;
957	  printf ("%s\n", &vt_bits[idx]);
958	}
959
960      printf ("\n Done with dump, on to build!\n");
961    }
962#endif
963
964  /* We need this index only while hp-symtab-read.c expects
965     a byte offset to the end of the LNTT entries for a given
966     psymtab.  Thus the need for it should go away someday.
967
968     When it goes away, then we won't have any need to load the
969     LNTT from the objfile at psymtab-time, and start-up will be
970     faster.  To make that work, we'll need some way to create
971     a null pst for the "globals" pseudo-module. */
972  max_LNTT_sym_index = LNTT_SYMCOUNT (objfile);
973
974  /* Scan the module descriptors and make a psymtab for each.
975
976     We know the MDs, FDs and the PDs are in order by starting
977     address.  We use that fact to traverse all three arrays in
978     parallel, knowing when the next PD is in a new file
979     and we need to create a new psymtab. */
980  curr_pd = 0;			/* Current procedure entry */
981  curr_fd = 0;			/* Current file entry */
982  curr_md = 0;			/* Current module entry */
983
984  start_adr = 0;		/* Current psymtab code range */
985  end_adr = 0;
986
987  start_sym = 0;		/* Current psymtab symbol range */
988  end_sym = 0;
989
990  syms_in_pst = 0;		/* Symbol count for psymtab */
991
992  /* Psts actually just have pointers into the objfile's
993     symbol table, not their own symbol tables. */
994  global_syms = objfile->global_psymbols.list;
995  static_syms = objfile->static_psymbols.list;
996
997
998  /* First skip over pseudo-entries with address 0.  These represent inlined
999     routines and abstract (uninstantiated) template routines.
1000     FIXME: These should be read in and available -- even if we can't set
1001     breakpoints, etc., there's some information that can be presented
1002     to the user. pai/1997-10-08  */
1003
1004  while (VALID_CURR_PROC && (CURR_PROC_START == 0))
1005    curr_pd++;
1006
1007  /* Loop over files, modules, and procedures in code address order. Each
1008     time we enter an iteration of this loop, curr_pd points to the first
1009     unprocessed procedure, curr_fd points to the first unprocessed file, and
1010     curr_md to the first unprocessed module.  Each iteration of this loop
1011     updates these as required -- any or all of them may be bumpd up
1012     each time around.  When we exit this loop, we are done with all files
1013     and modules in the tables -- there may still be some procedures, however.
1014
1015     Note: This code used to loop only over module entries, under the assumption
1016     that files can occur via inclusions and are thus unreliable, while a
1017     compiled object always corresponds to a module.  With CTTI in the HP aCC
1018     compiler, it turns out that compiled objects may have only files and no
1019     modules; so we have to loop over files and modules, creating psymtabs for
1020     either as appropriate.  Unfortunately there are some problems (notably:
1021     1. the lack of "SRC_FILE_END" entries in the LNTT, 2. the lack of pointers
1022     to the ending symbol indices of a module or a file) which make it quite hard
1023     to do this correctly.  Currently it uses a bunch of heuristics to start and
1024     end psymtabs; they seem to work well with most objects generated by aCC, but
1025     who knows when that will change...   */
1026
1027  while (VALID_CURR_FILE || VALID_CURR_MODULE)
1028    {
1029
1030      char *mod_name_string = NULL;
1031      char *full_name_string;
1032
1033      /* First check for modules like "version.c", which have no code
1034         in them but still have qMD entries.  They also have no qFD or
1035         qPD entries.  Their start address is -1 and their end address
1036         is 0.  */
1037      if (VALID_CURR_MODULE && (CURR_MODULE_START == -1) && (CURR_MODULE_END == 0))
1038	{
1039
1040	  mod_name_string = &vt_bits[(long) qMD[curr_md].sbMod];
1041
1042#ifdef DUMPING
1043	  if (dumping)
1044	    printf ("Module with data only %s\n", mod_name_string);
1045#endif
1046
1047	  /* We'll skip the rest (it makes error-checking easier), and
1048	     just make an empty pst.  Right now empty psts are not put
1049	     in the pst chain, so all this is for naught, but later it
1050	     might help.  */
1051
1052	  pst = hpread_start_psymtab (objfile,
1053				      mod_name_string,
1054				      CURR_MODULE_START,	/* Low text address: bogus! */
1055		       (CURR_MODULE_ISYM * sizeof (struct dntt_type_block)),
1056	  /* ldsymoff */
1057				      global_syms,
1058				      static_syms);
1059
1060	  pst = hpread_end_psymtab (pst,
1061				    NULL,	/* psymtab_include_list */
1062				    0,	/* includes_used        */
1063				  end_sym * sizeof (struct dntt_type_block),
1064	  /* byte index in LNTT of end
1065	     = capping symbol offset
1066	     = LDSYMOFF of nextfile */
1067				    0,	/* text high            */
1068				    NULL,	/* dependency_list      */
1069				    0);		/* dependencies_used    */
1070
1071	  global_syms = objfile->global_psymbols.next;
1072	  static_syms = objfile->static_psymbols.next;
1073
1074	  curr_md++;
1075	}
1076      else if (VALID_CURR_MODULE &&
1077	       ((CURR_MODULE_START == 0) || (CURR_MODULE_START == -1) ||
1078		(CURR_MODULE_END == 0) || (CURR_MODULE_END == -1)))
1079	{
1080	  TELL_OBJFILE;
1081	  warning ("Module \"%s\" [0x%s] has non-standard addresses.  It starts at 0x%s, ends at 0x%s, and will be skipped.",
1082		   mod_name_string, paddr_nz (curr_md), paddr_nz (start_adr), paddr_nz (end_adr));
1083	  /* On to next module */
1084	  curr_md++;
1085	}
1086      else
1087	{
1088	  /* First check if we are looking at a file with code in it
1089	     that does not overlap the current module's code range */
1090
1091	  if (VALID_CURR_FILE ? (VALID_CURR_MODULE ? (CURR_FILE_END < CURR_MODULE_START) : 1) : 0)
1092	    {
1093
1094	      /* Looking at file not corresponding to any module,
1095	         create a psymtab for it */
1096	      full_name_string = &vt_bits[(long) qFD[curr_fd].sbFile];
1097	      start_adr = CURR_FILE_START;
1098	      end_adr = CURR_FILE_END;
1099	      start_sym = CURR_FILE_ISYM;
1100
1101	      /* Check if there are any procedures not handled until now, that
1102	         begin before the start address of this file, and if so, adjust
1103	         this module's start address to include them.  This handles routines that
1104	         are in between file or module ranges for some reason (probably
1105	         indicates a compiler bug */
1106
1107	      if (CURR_PROC_START < start_adr)
1108		{
1109		  TELL_OBJFILE;
1110		  warning ("Found procedure \"%s\" [0x%x] that is not in any file or module.",
1111			   &vt_bits[(long) qPD[curr_pd].sbProc], curr_pd);
1112		  start_adr = CURR_PROC_START;
1113		  if (CURR_PROC_ISYM < start_sym)
1114		    start_sym = CURR_PROC_ISYM;
1115		}
1116
1117	      /* Sometimes (compiler bug -- COBOL) the module end address is higher
1118	         than the start address of the next module, so check for that and
1119	         adjust accordingly */
1120
1121	      if (VALID_FILE (curr_fd + 1) && (FILE_START (curr_fd + 1) <= end_adr))
1122		{
1123		  TELL_OBJFILE;
1124		  warning ("File \"%s\" [0x%x] has ending address after starting address of next file; adjusting ending address down.",
1125			   full_name_string, curr_fd);
1126		  end_adr = FILE_START (curr_fd + 1) - 1;	/* Is -4 (or -8 for 64-bit) better? */
1127		}
1128	      if (VALID_MODULE (curr_md) && (CURR_MODULE_START <= end_adr))
1129		{
1130		  TELL_OBJFILE;
1131		  warning ("File \"%s\" [0x%x] has ending address after starting address of next module; adjusting ending address down.",
1132			   full_name_string, curr_fd);
1133		  end_adr = CURR_MODULE_START - 1;	/* Is -4 (or -8 for 64-bit) better? */
1134		}
1135
1136
1137#ifdef DUMPING
1138	      if (dumping)
1139		{
1140		  printf ("Make new psymtab for file %s (%x to %x).\n",
1141			  full_name_string, start_adr, end_adr);
1142		}
1143#endif
1144	      /* Create the basic psymtab, connecting it in the list
1145	         for this objfile and pointing its symbol entries
1146	         to the current end of the symbol areas in the objfile.
1147
1148	         The "ldsymoff" parameter is the byte offset in the LNTT
1149	         of the first symbol in this file.  Some day we should
1150	         turn this into an index (fix in hp-symtab-read.c as well).
1151	         And it's not even the right byte offset, as we're using
1152	         the size of a union! FIXME!  */
1153	      pst = hpread_start_psymtab (objfile,
1154					  full_name_string,
1155					  start_adr,	/* Low text address */
1156			      (start_sym * sizeof (struct dntt_type_block)),
1157	      /* ldsymoff */
1158					  global_syms,
1159					  static_syms);
1160
1161	      /* Set up to only enter each class referenced in this module once.  */
1162	      class_entered = xmalloc (B_BYTES (pxdb_header_p->cd_entries));
1163	      B_CLRALL (class_entered, pxdb_header_p->cd_entries);
1164
1165	      /* Scan the procedure descriptors for procedures in the current
1166	         file, based on the starting addresses. */
1167
1168	      syms_in_pst = scan_procs (&curr_pd, qPD, pxdb_header_p->pd_entries,
1169					start_adr, end_adr, pst, vt_bits, objfile);
1170
1171	      /* Get ending symbol offset */
1172
1173	      end_sym = 0;
1174	      /* First check for starting index before previous psymtab */
1175	      if (pst_syms_count && start_sym < pst_syms_array[pst_syms_count - 1].end)
1176		{
1177		  end_sym = find_next_pst_start (start_sym);
1178		}
1179	      /* Look for next start index of a file or module, or procedure */
1180	      if (!end_sym)
1181		{
1182		  int next_file_isym = find_next_file_isym (start_sym, qFD, curr_fd + 1, pxdb_header_p);
1183		  int next_module_isym = find_next_module_isym (start_sym, qMD, curr_md, pxdb_header_p);
1184		  int next_proc_isym = find_next_proc_isym (start_sym, qPD, curr_pd, pxdb_header_p);
1185
1186		  if (next_file_isym && next_module_isym)
1187		    {
1188		      /* pick lower of next file or module start index */
1189		      end_sym = min (next_file_isym, next_module_isym);
1190		    }
1191		  else
1192		    {
1193		      /* one of them is zero, pick the other */
1194		      end_sym = max (next_file_isym, next_module_isym);
1195		    }
1196
1197		  /* As a precaution, check next procedure index too */
1198		  if (!end_sym)
1199		    end_sym = next_proc_isym;
1200		  else
1201		    end_sym = min (end_sym, next_proc_isym);
1202		}
1203
1204	      /* Couldn't find procedure, file, or module, use globals as default */
1205	      if (!end_sym)
1206		end_sym = pxdb_header_p->globals;
1207
1208#ifdef DUMPING
1209	      if (dumping)
1210		{
1211		  printf ("File psymtab indices: %x to %x\n", start_sym, end_sym);
1212		}
1213#endif
1214
1215	      pst = hpread_end_psymtab (pst,
1216					NULL,	/* psymtab_include_list */
1217					0,	/* includes_used        */
1218				  end_sym * sizeof (struct dntt_type_block),
1219	      /* byte index in LNTT of end
1220	         = capping symbol offset
1221	         = LDSYMOFF of nextfile */
1222					end_adr,	/* text high */
1223					NULL,	/* dependency_list */
1224					0);	/* dependencies_used */
1225
1226	      record_pst_syms (start_sym, end_sym);
1227
1228	      if (NULL == pst)
1229		warning ("No symbols in psymtab for file \"%s\" [0x%x].", full_name_string, curr_fd);
1230
1231#ifdef DUMPING
1232	      if (dumping)
1233		{
1234		  printf ("Made new psymtab for file %s (%x to %x), sym %x to %x.\n",
1235			  full_name_string, start_adr, end_adr, CURR_FILE_ISYM, end_sym);
1236		}
1237#endif
1238	      /* Prepare for the next psymtab. */
1239	      global_syms = objfile->global_psymbols.next;
1240	      static_syms = objfile->static_psymbols.next;
1241	      xfree (class_entered);
1242
1243	      curr_fd++;
1244	    }			/* Psymtab for file */
1245	  else
1246	    {
1247	      /* We have a module for which we create a psymtab */
1248
1249	      mod_name_string = &vt_bits[(long) qMD[curr_md].sbMod];
1250
1251	      /* We will include the code ranges of any files that happen to
1252	         overlap with this module */
1253
1254	      /* So, first pick the lower of the file's and module's start addresses */
1255	      start_adr = CURR_MODULE_START;
1256	      if (VALID_CURR_FILE)
1257		{
1258		  if (CURR_FILE_START < CURR_MODULE_START)
1259		    {
1260		      TELL_OBJFILE;
1261		      warning ("File \"%s\" [0x%x] crosses beginning of module \"%s\".",
1262			       &vt_bits[(long) qFD[curr_fd].sbFile],
1263			       curr_fd, mod_name_string);
1264
1265		      start_adr = CURR_FILE_START;
1266		    }
1267		}
1268
1269	      /* Also pick the lower of the file's and the module's start symbol indices */
1270	      start_sym = CURR_MODULE_ISYM;
1271	      if (VALID_CURR_FILE && (CURR_FILE_ISYM < CURR_MODULE_ISYM))
1272		start_sym = CURR_FILE_ISYM;
1273
1274	      /* For the end address, we scan through the files till we find one
1275	         that overlaps the current module but ends beyond it; if no such file exists we
1276	         simply use the module's start address.
1277	         (Note, if file entries themselves overlap
1278	         we take the longest overlapping extension beyond the end of the module...)
1279	         We assume that modules never overlap. */
1280
1281	      end_adr = CURR_MODULE_END;
1282
1283	      if (VALID_CURR_FILE)
1284		{
1285		  while (VALID_CURR_FILE && (CURR_FILE_START < end_adr))
1286		    {
1287
1288#ifdef DUMPING
1289		      if (dumping)
1290			printf ("Maybe skipping file %s which overlaps with module %s\n",
1291				&vt_bits[(long) qFD[curr_fd].sbFile], mod_name_string);
1292#endif
1293		      if (CURR_FILE_END > end_adr)
1294			{
1295			  TELL_OBJFILE;
1296			  warning ("File \"%s\" [0x%x] crosses end of module \"%s\".",
1297				   &vt_bits[(long) qFD[curr_fd].sbFile],
1298				   curr_fd, mod_name_string);
1299			  end_adr = CURR_FILE_END;
1300			}
1301		      curr_fd++;
1302		    }
1303		  curr_fd--;	/* back up after going too far */
1304		}
1305
1306	      /* Sometimes (compiler bug -- COBOL) the module end address is higher
1307	         than the start address of the next module, so check for that and
1308	         adjust accordingly */
1309
1310	      if (VALID_MODULE (curr_md + 1) && (MODULE_START (curr_md + 1) <= end_adr))
1311		{
1312		  TELL_OBJFILE;
1313		  warning ("Module \"%s\" [0x%x] has ending address after starting address of next module; adjusting ending address down.",
1314			   mod_name_string, curr_md);
1315		  end_adr = MODULE_START (curr_md + 1) - 1;	/* Is -4 (or -8 for 64-bit) better? */
1316		}
1317	      if (VALID_FILE (curr_fd + 1) && (FILE_START (curr_fd + 1) <= end_adr))
1318		{
1319		  TELL_OBJFILE;
1320		  warning ("Module \"%s\" [0x%x] has ending address after starting address of next file; adjusting ending address down.",
1321			   mod_name_string, curr_md);
1322		  end_adr = FILE_START (curr_fd + 1) - 1;	/* Is -4 (or -8 for 64-bit) better? */
1323		}
1324
1325	      /* Use one file to get the full name for the module.  This
1326	         situation can arise if there is executable code in a #include
1327	         file.  Each file with code in it gets a qFD.  Files which don't
1328	         contribute code don't get a qFD, even if they include files
1329	         which do, e.g.:
1330
1331	         body.c:                    rtn.h:
1332	         int x;                     int main() {
1333	         #include "rtn.h"               return x;
1334	         }
1335
1336	         There will a qFD for "rtn.h",and a qMD for "body.c",
1337	         but no qMD for "rtn.h" or qFD for "body.c"!
1338
1339	         We pick the name of the last file to overlap with this
1340	         module.  C convention is to put include files first.  In a
1341	         perfect world, we could check names and use the file whose full
1342	         path name ends with the module name. */
1343
1344	      if (VALID_CURR_FILE)
1345		full_name_string = &vt_bits[(long) qFD[curr_fd].sbFile];
1346	      else
1347		full_name_string = mod_name_string;
1348
1349	      /* Check if there are any procedures not handled until now, that
1350	         begin before the start address we have now, and if so, adjust
1351	         this psymtab's start address to include them.  This handles routines that
1352	         are in between file or module ranges for some reason (probably
1353	         indicates a compiler bug */
1354
1355	      if (CURR_PROC_START < start_adr)
1356		{
1357		  TELL_OBJFILE;
1358		  warning ("Found procedure \"%s\" [0x%x] that is not in any file or module.",
1359			   &vt_bits[(long) qPD[curr_pd].sbProc], curr_pd);
1360		  start_adr = CURR_PROC_START;
1361		  if (CURR_PROC_ISYM < start_sym)
1362		    start_sym = CURR_PROC_ISYM;
1363		}
1364
1365#ifdef DUMPING
1366	      if (dumping)
1367		{
1368		  printf ("Make new psymtab for module %s (%x to %x), using file %s\n",
1369		     mod_name_string, start_adr, end_adr, full_name_string);
1370		}
1371#endif
1372	      /* Create the basic psymtab, connecting it in the list
1373	         for this objfile and pointing its symbol entries
1374	         to the current end of the symbol areas in the objfile.
1375
1376	         The "ldsymoff" parameter is the byte offset in the LNTT
1377	         of the first symbol in this file.  Some day we should
1378	         turn this into an index (fix in hp-symtab-read.c as well).
1379	         And it's not even the right byte offset, as we're using
1380	         the size of a union! FIXME!  */
1381	      pst = hpread_start_psymtab (objfile,
1382					  full_name_string,
1383					  start_adr,	/* Low text address */
1384			      (start_sym * sizeof (struct dntt_type_block)),
1385	      /* ldsymoff */
1386					  global_syms,
1387					  static_syms);
1388
1389	      /* Set up to only enter each class referenced in this module once.  */
1390	      class_entered = xmalloc (B_BYTES (pxdb_header_p->cd_entries));
1391	      B_CLRALL (class_entered, pxdb_header_p->cd_entries);
1392
1393	      /* Scan the procedure descriptors for procedures in the current
1394	         module, based on the starting addresses. */
1395
1396	      syms_in_pst = scan_procs (&curr_pd, qPD, pxdb_header_p->pd_entries,
1397					start_adr, end_adr, pst, vt_bits, objfile);
1398
1399	      /* Get ending symbol offset */
1400
1401	      end_sym = 0;
1402	      /* First check for starting index before previous psymtab */
1403	      if (pst_syms_count && start_sym < pst_syms_array[pst_syms_count - 1].end)
1404		{
1405		  end_sym = find_next_pst_start (start_sym);
1406		}
1407	      /* Look for next start index of a file or module, or procedure */
1408	      if (!end_sym)
1409		{
1410		  int next_file_isym = find_next_file_isym (start_sym, qFD, curr_fd + 1, pxdb_header_p);
1411		  int next_module_isym = find_next_module_isym (start_sym, qMD, curr_md + 1, pxdb_header_p);
1412		  int next_proc_isym = find_next_proc_isym (start_sym, qPD, curr_pd, pxdb_header_p);
1413
1414		  if (next_file_isym && next_module_isym)
1415		    {
1416		      /* pick lower of next file or module start index */
1417		      end_sym = min (next_file_isym, next_module_isym);
1418		    }
1419		  else
1420		    {
1421		      /* one of them is zero, pick the other */
1422		      end_sym = max (next_file_isym, next_module_isym);
1423		    }
1424
1425		  /* As a precaution, check next procedure index too */
1426		  if (!end_sym)
1427		    end_sym = next_proc_isym;
1428		  else
1429		    end_sym = min (end_sym, next_proc_isym);
1430		}
1431
1432	      /* Couldn't find procedure, file, or module, use globals as default */
1433	      if (!end_sym)
1434		end_sym = pxdb_header_p->globals;
1435
1436#ifdef DUMPING
1437	      if (dumping)
1438		{
1439		  printf ("Module psymtab indices: %x to %x\n", start_sym, end_sym);
1440		}
1441#endif
1442
1443	      pst = hpread_end_psymtab (pst,
1444					NULL,	/* psymtab_include_list */
1445					0,	/* includes_used        */
1446				  end_sym * sizeof (struct dntt_type_block),
1447	      /* byte index in LNTT of end
1448	         = capping symbol offset
1449	         = LDSYMOFF of nextfile */
1450					end_adr,	/* text high */
1451					NULL,	/* dependency_list      */
1452					0);	/* dependencies_used    */
1453
1454	      record_pst_syms (start_sym, end_sym);
1455
1456	      if (NULL == pst)
1457		warning ("No symbols in psymtab for module \"%s\" [0x%x].", mod_name_string, curr_md);
1458
1459#ifdef DUMPING
1460	      if (dumping)
1461		{
1462		  printf ("Made new psymtab for module %s (%x to %x), sym %x to %x.\n",
1463			  mod_name_string, start_adr, end_adr, CURR_MODULE_ISYM, end_sym);
1464		}
1465#endif
1466
1467	      /* Prepare for the next psymtab. */
1468	      global_syms = objfile->global_psymbols.next;
1469	      static_syms = objfile->static_psymbols.next;
1470	      xfree (class_entered);
1471
1472	      curr_md++;
1473	      curr_fd++;
1474	    }			/* psymtab for module */
1475	}			/* psymtab for non-bogus file or module */
1476    }				/* End of while loop over all files & modules */
1477
1478  /* There may be some routines after all files and modules -- these will get
1479     inserted in a separate new module of their own */
1480  if (VALID_CURR_PROC)
1481    {
1482      start_adr = CURR_PROC_START;
1483      end_adr = qPD[pxdb_header_p->pd_entries - 1].adrEnd;
1484      TELL_OBJFILE;
1485      warning ("Found functions beyond end of all files and modules [0x%x].", curr_pd);
1486#ifdef DUMPING
1487      if (dumping)
1488	{
1489	  printf ("Orphan functions at end, PD %d and beyond (%x to %x)\n",
1490		  curr_pd, start_adr, end_adr);
1491	}
1492#endif
1493      pst = hpread_start_psymtab (objfile,
1494				  "orphans",
1495				  start_adr,	/* Low text address */
1496			 (CURR_PROC_ISYM * sizeof (struct dntt_type_block)),
1497      /* ldsymoff */
1498				  global_syms,
1499				  static_syms);
1500
1501      scan_procs (&curr_pd, qPD, pxdb_header_p->pd_entries,
1502		  start_adr, end_adr, pst, vt_bits, objfile);
1503
1504      pst = hpread_end_psymtab (pst,
1505				NULL,	/* psymtab_include_list */
1506				0,	/* includes_used */
1507		   pxdb_header_p->globals * sizeof (struct dntt_type_block),
1508      /* byte index in LNTT of end
1509         = capping symbol offset
1510         = LDSYMOFF of nextfile */
1511				end_adr,	/* text high  */
1512				NULL,	/* dependency_list */
1513				0);	/* dependencies_used */
1514    }
1515
1516
1517#ifdef NEVER_NEVER
1518  /* Now build psts for non-module things (in the tail of
1519     the LNTT, after the last END MODULE entry).
1520
1521     If null psts were kept on the chain, this would be
1522     a solution.  FIXME */
1523  pst = hpread_start_psymtab (objfile,
1524			      "globals",
1525			      0,
1526			      (pxdb_header_p->globals
1527			       * sizeof (struct dntt_type_block)),
1528			      objfile->global_psymbols.next,
1529			      objfile->static_psymbols.next);
1530  hpread_end_psymtab (pst,
1531		      NULL, 0,
1532		      (max_LNTT_sym_index * sizeof (struct dntt_type_block)),
1533		      0,
1534		      NULL, 0);
1535#endif
1536
1537  clear_pst_syms ();
1538
1539  return 1;
1540
1541}				/* End of hpread_quick_traverse. */
1542
1543
1544/* Get appropriate header, based on pxdb type.
1545   Return value: 1 if ok, 0 if not */
1546static int
1547hpread_get_header (struct objfile *objfile, PXDB_header_ptr pxdb_header_p)
1548{
1549  asection *pinfo_section, *debug_section, *header_section;
1550
1551#ifdef DUMPING
1552  /* Turn on for debugging information */
1553  static int dumping = 0;
1554#endif
1555
1556  header_section = bfd_get_section_by_name (objfile->obfd, "$HEADER$");
1557  if (!header_section)
1558    {
1559      /* We don't have either PINFO or DEBUG sections.  But
1560         stuff like "libc.sl" has no debug info.  There's no
1561         need to warn the user of this, as it may be ok. The
1562         caller will figure it out and issue any needed
1563         messages. */
1564#ifdef DUMPING
1565      if (dumping)
1566	printf ("==No debug info at all for %s.\n", objfile->name);
1567#endif
1568
1569      return 0;
1570    }
1571
1572  /* We would like either a $DEBUG$ or $PINFO$ section.
1573     Once we know which, we can understand the header
1574     data (which we have defined to suit the more common
1575     $DEBUG$ case). */
1576  debug_section = bfd_get_section_by_name (objfile->obfd, "$DEBUG$");
1577  pinfo_section = bfd_get_section_by_name (objfile->obfd, "$PINFO$");
1578  if (debug_section)
1579    {
1580      /* The expected case: normal pxdb header. */
1581      bfd_get_section_contents (objfile->obfd, header_section,
1582				pxdb_header_p, 0, sizeof (PXDB_header));
1583
1584      if (!pxdb_header_p->pxdbed)
1585	{
1586	  /* This shouldn't happen if we check in "symfile.c". */
1587	  return 0;
1588	}			/* DEBUG section */
1589    }
1590
1591  else if (pinfo_section)
1592    {
1593      /* The DOC case; we need to translate this into a
1594         regular header. */
1595      DOC_info_PXDB_header doc_header;
1596
1597#ifdef DUMPING
1598      if (dumping)
1599	{
1600	  printf ("==OOps, PINFO, let's try to handle this, %s.\n", objfile->name);
1601	}
1602#endif
1603
1604      bfd_get_section_contents (objfile->obfd,
1605				header_section,
1606				&doc_header, 0,
1607				sizeof (DOC_info_PXDB_header));
1608
1609      if (!doc_header.pxdbed)
1610	{
1611	  /* This shouldn't happen if we check in "symfile.c". */
1612	  warning ("File \"%s\" not processed by pxdb!", objfile->name);
1613	  return 0;
1614	}
1615
1616      /* Copy relevent fields to standard header passed in. */
1617      pxdb_header_p->pd_entries = doc_header.pd_entries;
1618      pxdb_header_p->fd_entries = doc_header.fd_entries;
1619      pxdb_header_p->md_entries = doc_header.md_entries;
1620      pxdb_header_p->pxdbed = doc_header.pxdbed;
1621      pxdb_header_p->bighdr = doc_header.bighdr;
1622      pxdb_header_p->sa_header = doc_header.sa_header;
1623      pxdb_header_p->inlined = doc_header.inlined;
1624      pxdb_header_p->globals = doc_header.globals;
1625      pxdb_header_p->time = doc_header.time;
1626      pxdb_header_p->pg_entries = doc_header.pg_entries;
1627      pxdb_header_p->functions = doc_header.functions;
1628      pxdb_header_p->files = doc_header.files;
1629      pxdb_header_p->cd_entries = doc_header.cd_entries;
1630      pxdb_header_p->aa_entries = doc_header.aa_entries;
1631      pxdb_header_p->oi_entries = doc_header.oi_entries;
1632      pxdb_header_p->version = doc_header.version;
1633    }				/* PINFO section */
1634
1635  else
1636    {
1637#ifdef DUMPING
1638      if (dumping)
1639	printf ("==No debug info at all for %s.\n", objfile->name);
1640#endif
1641
1642      return 0;
1643
1644    }
1645
1646  return 1;
1647}				/* End of hpread_get_header */
1648#endif /* QUICK_LOOK_UP */
1649
1650
1651/* Initialization for reading native HP C debug symbols from OBJFILE.
1652
1653   Its only purpose in life is to set up the symbol reader's private
1654   per-objfile data structures, and read in the raw contents of the debug
1655   sections (attaching pointers to the debug info into the private data
1656   structures).
1657
1658   Since BFD doesn't know how to read debug symbols in a format-independent
1659   way (and may never do so...), we have to do it ourselves.  Note we may
1660   be called on a file without native HP C debugging symbols.
1661
1662   FIXME, there should be a cleaner peephole into the BFD environment
1663   here. */
1664void
1665hpread_symfile_init (struct objfile *objfile)
1666{
1667  asection *vt_section, *slt_section, *lntt_section, *gntt_section;
1668
1669  /* Allocate struct to keep track of the symfile */
1670  objfile->sym_private =
1671    xmalloc (sizeof (struct hpread_symfile_info));
1672  memset (objfile->sym_private, 0, sizeof (struct hpread_symfile_info));
1673
1674  /* We haven't read in any types yet.  */
1675  DNTT_TYPE_VECTOR (objfile) = 0;
1676
1677  /* Read in data from the $GNTT$ subspace.  */
1678  gntt_section = bfd_get_section_by_name (objfile->obfd, "$GNTT$");
1679  if (!gntt_section)
1680    return;
1681
1682  GNTT (objfile)
1683    = obstack_alloc (&objfile->objfile_obstack,
1684		     bfd_section_size (objfile->obfd, gntt_section));
1685
1686  bfd_get_section_contents (objfile->obfd, gntt_section, GNTT (objfile),
1687			 0, bfd_section_size (objfile->obfd, gntt_section));
1688
1689  GNTT_SYMCOUNT (objfile)
1690    = bfd_section_size (objfile->obfd, gntt_section)
1691    / sizeof (struct dntt_type_block);
1692
1693  /* Read in data from the $LNTT$ subspace.   Also keep track of the number
1694     of LNTT symbols.
1695
1696     FIXME: this could be moved into the psymtab-to-symtab expansion
1697     code, and save startup time.  At the moment this data is
1698     still used, though.  We'd need a way to tell hp-symtab-read.c
1699     whether or not to load the LNTT. */
1700  lntt_section = bfd_get_section_by_name (objfile->obfd, "$LNTT$");
1701  if (!lntt_section)
1702    return;
1703
1704  LNTT (objfile)
1705    = obstack_alloc (&objfile->objfile_obstack,
1706		     bfd_section_size (objfile->obfd, lntt_section));
1707
1708  bfd_get_section_contents (objfile->obfd, lntt_section, LNTT (objfile),
1709			 0, bfd_section_size (objfile->obfd, lntt_section));
1710
1711  LNTT_SYMCOUNT (objfile)
1712    = bfd_section_size (objfile->obfd, lntt_section)
1713    / sizeof (struct dntt_type_block);
1714
1715  /* Read in data from the $SLT$ subspace.  $SLT$ contains information
1716     on source line numbers.  */
1717  slt_section = bfd_get_section_by_name (objfile->obfd, "$SLT$");
1718  if (!slt_section)
1719    return;
1720
1721  SLT (objfile) =
1722    obstack_alloc (&objfile->objfile_obstack,
1723		   bfd_section_size (objfile->obfd, slt_section));
1724
1725  bfd_get_section_contents (objfile->obfd, slt_section, SLT (objfile),
1726			  0, bfd_section_size (objfile->obfd, slt_section));
1727
1728  /* Read in data from the $VT$ subspace.  $VT$ contains things like
1729     names and constants.  Keep track of the number of symbols in the VT.  */
1730  vt_section = bfd_get_section_by_name (objfile->obfd, "$VT$");
1731  if (!vt_section)
1732    return;
1733
1734  VT_SIZE (objfile) = bfd_section_size (objfile->obfd, vt_section);
1735
1736  VT (objfile) =
1737    (char *) obstack_alloc (&objfile->objfile_obstack,
1738			    VT_SIZE (objfile));
1739
1740  bfd_get_section_contents (objfile->obfd, vt_section, VT (objfile),
1741			    0, VT_SIZE (objfile));
1742}
1743
1744/* Scan and build partial symbols for a symbol file.
1745
1746   The minimal symbol table (either SOM or HP a.out) has already been
1747   read in; all we need to do is setup partial symbols based on the
1748   native debugging information.
1749
1750   Note that the minimal table is produced by the linker, and has
1751   only global routines in it; the psymtab is based on compiler-
1752   generated debug information and has non-global
1753   routines in it as well as files and class information.
1754
1755   We assume hpread_symfile_init has been called to initialize the
1756   symbol reader's private data structures.
1757
1758   MAINLINE is true if we are reading the main symbol table (as
1759   opposed to a shared lib or dynamically loaded file). */
1760
1761void
1762hpread_build_psymtabs (struct objfile *objfile, int mainline)
1763{
1764
1765#ifdef DUMPING
1766  /* Turn this on to get debugging output. */
1767  static int dumping = 0;
1768#endif
1769
1770  char *namestring;
1771  int past_first_source_file = 0;
1772  struct cleanup *old_chain;
1773
1774  int hp_symnum, symcount, i;
1775  int scan_start = 0;
1776
1777  union dnttentry *dn_bufp;
1778  unsigned long valu;
1779  char *p;
1780  int texthigh = 0;
1781  int have_name = 0;
1782
1783  /* Current partial symtab */
1784  struct partial_symtab *pst;
1785
1786  /* List of current psymtab's include files */
1787  char **psymtab_include_list;
1788  int includes_allocated;
1789  int includes_used;
1790
1791  /* Index within current psymtab dependency list */
1792  struct partial_symtab **dependency_list;
1793  int dependencies_used, dependencies_allocated;
1794
1795  /* Just in case the stabs reader left turds lying around.  */
1796  free_pending_blocks ();
1797  make_cleanup (really_free_pendings, 0);
1798
1799  pst = (struct partial_symtab *) 0;
1800
1801  /* We shouldn't use alloca, instead use malloc/free.  Doing so avoids
1802     a number of problems with cross compilation and creating useless holes
1803     in the stack when we have to allocate new entries.  FIXME.  */
1804
1805  includes_allocated = 30;
1806  includes_used = 0;
1807  psymtab_include_list = (char **) alloca (includes_allocated *
1808					   sizeof (char *));
1809
1810  dependencies_allocated = 30;
1811  dependencies_used = 0;
1812  dependency_list =
1813    (struct partial_symtab **) alloca (dependencies_allocated *
1814				       sizeof (struct partial_symtab *));
1815
1816  old_chain = make_cleanup_free_objfile (objfile);
1817
1818  last_source_file = 0;
1819
1820#ifdef QUICK_LOOK_UP
1821  {
1822    /* Begin code for new-style loading of quick look-up tables. */
1823
1824    /* elz: this checks whether the file has beeen processed by pxdb.
1825       If not we would like to try to read the psymbols in
1826       anyway, but it turns out to be not so easy. So this could
1827       actually be commented out, but I leave it in, just in case
1828       we decide to add support for non-pxdb-ed stuff in the future. */
1829    PXDB_header pxdb_header;
1830    int found_modules_in_program;
1831
1832    if (hpread_get_header (objfile, &pxdb_header))
1833      {
1834	/* Build a minimal table.  No types, no global variables,
1835	   no include files.... */
1836#ifdef DUMPING
1837	if (dumping)
1838	  printf ("\nNew method for %s\n", objfile->name);
1839#endif
1840
1841	/* elz: quick_traverse returns true if it found
1842	   some modules in the main source file, other
1843	   than those in end.c
1844	   In C and C++, all the files have MODULES entries
1845	   in the LNTT, and the quick table traverse is all
1846	   based on finding these MODULES entries. Without
1847	   those it cannot work.
1848	   It happens that F77 programs don't have MODULES
1849	   so the quick traverse gets confused. F90 programs
1850	   have modules, and the quick method still works.
1851	   So, if modules (other than those in end.c) are
1852	   not found we give up on the quick table stuff,
1853	   and fall back on the slower method  */
1854	found_modules_in_program = hpread_quick_traverse (objfile,
1855							  GNTT (objfile),
1856							  VT (objfile),
1857							  &pxdb_header);
1858
1859	discard_cleanups (old_chain);
1860
1861	/* Set up to scan the global section of the LNTT.
1862
1863	   This field is not always correct: if there are
1864	   no globals, it will point to the last record in
1865	   the regular LNTT, which is usually an END MODULE.
1866
1867	   Since it might happen that there could be a file
1868	   with just one global record, there's no way to
1869	   tell other than by looking at the record, so that's
1870	   done below. */
1871	if (found_modules_in_program)
1872	  scan_start = pxdb_header.globals;
1873      }
1874#ifdef DUMPING
1875    else
1876      {
1877	if (dumping)
1878	  printf ("\nGoing on to old method for %s\n", objfile->name);
1879      }
1880#endif
1881  }
1882#endif /* QUICK_LOOK_UP */
1883
1884  /* Make two passes, one over the GNTT symbols, the other for the
1885     LNTT symbols.
1886
1887     JB comment: above isn't true--they only make one pass, over
1888     the LNTT.  */
1889  for (i = 0; i < 1; i++)
1890    {
1891      int within_function = 0;
1892
1893      if (i)
1894	symcount = GNTT_SYMCOUNT (objfile);
1895      else
1896	symcount = LNTT_SYMCOUNT (objfile);
1897
1898
1899      for (hp_symnum = scan_start; hp_symnum < symcount; hp_symnum++)
1900	{
1901	  QUIT;
1902	  if (i)
1903	    dn_bufp = hpread_get_gntt (hp_symnum, objfile);
1904	  else
1905	    dn_bufp = hpread_get_lntt (hp_symnum, objfile);
1906
1907	  if (dn_bufp->dblock.extension)
1908	    continue;
1909
1910	  /* Only handle things which are necessary for minimal symbols.
1911	     everything else is ignored.  */
1912	  switch (dn_bufp->dblock.kind)
1913	    {
1914	    case DNTT_TYPE_SRCFILE:
1915	      {
1916#ifdef QUICK_LOOK_UP
1917		if (scan_start == hp_symnum
1918		    && symcount == hp_symnum + 1)
1919		  {
1920		    /* If there are NO globals in an executable,
1921		       PXDB's index to the globals will point to
1922		       the last record in the file, which
1923		       could be this record. (this happened for F77 libraries)
1924		       ignore it and be done! */
1925		    continue;
1926		  }
1927#endif /* QUICK_LOOK_UP */
1928
1929		/* A source file of some kind.  Note this may simply
1930		   be an included file.  */
1931		set_namestring (dn_bufp, &namestring, objfile);
1932
1933		/* Check if this is the source file we are already working
1934		   with.  */
1935		if (pst && !strcmp (namestring, pst->filename))
1936		  continue;
1937
1938		/* Check if this is an include file, if so check if we have
1939		   already seen it.  Add it to the include list */
1940		p = strrchr (namestring, '.');
1941		if (!strcmp (p, ".h"))
1942		  {
1943		    int j, found;
1944
1945		    found = 0;
1946		    for (j = 0; j < includes_used; j++)
1947		      if (!strcmp (namestring, psymtab_include_list[j]))
1948			{
1949			  found = 1;
1950			  break;
1951			}
1952		    if (found)
1953		      continue;
1954
1955		    /* Add it to the list of includes seen so far and
1956		       allocate more include space if necessary.  */
1957		    psymtab_include_list[includes_used++] = namestring;
1958		    if (includes_used >= includes_allocated)
1959		      {
1960			char **orig = psymtab_include_list;
1961
1962			psymtab_include_list = (char **)
1963			  alloca ((includes_allocated *= 2) *
1964				  sizeof (char *));
1965			memcpy (psymtab_include_list, orig,
1966				includes_used * sizeof (char *));
1967		      }
1968		    continue;
1969		  }
1970
1971		if (pst)
1972		  {
1973		    if (!have_name)
1974		      {
1975			pst->filename = (char *)
1976			  obstack_alloc (&pst->objfile->objfile_obstack,
1977					 strlen (namestring) + 1);
1978			strcpy (pst->filename, namestring);
1979			have_name = 1;
1980			continue;
1981		      }
1982		    continue;
1983		  }
1984
1985		/* This is a bonafide new source file.
1986		   End the current partial symtab and start a new one.  */
1987
1988		if (pst && past_first_source_file)
1989		  {
1990		    hpread_end_psymtab (pst, psymtab_include_list,
1991					includes_used,
1992					(hp_symnum
1993					 * sizeof (struct dntt_type_block)),
1994					texthigh,
1995					dependency_list, dependencies_used);
1996		    pst = (struct partial_symtab *) 0;
1997		    includes_used = 0;
1998		    dependencies_used = 0;
1999		  }
2000		else
2001		  past_first_source_file = 1;
2002
2003		valu = hpread_get_textlow (i, hp_symnum, objfile, symcount);
2004		valu += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2005		pst = hpread_start_psymtab (objfile,
2006					    namestring, valu,
2007					    (hp_symnum
2008					 * sizeof (struct dntt_type_block)),
2009					    objfile->global_psymbols.next,
2010					    objfile->static_psymbols.next);
2011		texthigh = valu;
2012		have_name = 1;
2013		continue;
2014	      }
2015
2016	    case DNTT_TYPE_MODULE:
2017	      /* A source file.  It's still unclear to me what the
2018	         real difference between a DNTT_TYPE_SRCFILE and DNTT_TYPE_MODULE
2019	         is supposed to be.  */
2020
2021	      /* First end the previous psymtab */
2022	      if (pst)
2023		{
2024		  hpread_end_psymtab (pst, psymtab_include_list, includes_used,
2025				      ((hp_symnum - 1)
2026				       * sizeof (struct dntt_type_block)),
2027				      texthigh,
2028				      dependency_list, dependencies_used);
2029		  pst = (struct partial_symtab *) 0;
2030		  includes_used = 0;
2031		  dependencies_used = 0;
2032		  have_name = 0;
2033		}
2034
2035	      /* Now begin a new module and a new psymtab for it */
2036	      set_namestring (dn_bufp, &namestring, objfile);
2037	      valu = hpread_get_textlow (i, hp_symnum, objfile, symcount);
2038	      valu += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2039	      if (!pst)
2040		{
2041		  pst = hpread_start_psymtab (objfile,
2042					      namestring, valu,
2043					      (hp_symnum
2044					 * sizeof (struct dntt_type_block)),
2045					      objfile->global_psymbols.next,
2046					      objfile->static_psymbols.next);
2047		  texthigh = valu;
2048		  have_name = 0;
2049		}
2050	      continue;
2051
2052	    case DNTT_TYPE_FUNCTION:
2053	    case DNTT_TYPE_ENTRY:
2054	      /* The beginning of a function.  DNTT_TYPE_ENTRY may also denote
2055	         a secondary entry point.  */
2056	      valu = dn_bufp->dfunc.hiaddr + ANOFFSET (objfile->section_offsets,
2057						       SECT_OFF_TEXT (objfile));
2058	      if (valu > texthigh)
2059		texthigh = valu;
2060	      valu = dn_bufp->dfunc.lowaddr +
2061		ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2062	      set_namestring (dn_bufp, &namestring, objfile);
2063	      if (dn_bufp->dfunc.global)
2064		add_psymbol_to_list (namestring, strlen (namestring),
2065				     VAR_DOMAIN, LOC_BLOCK,
2066				     &objfile->global_psymbols, valu,
2067				     0, language_unknown, objfile);
2068	      else
2069		add_psymbol_to_list (namestring, strlen (namestring),
2070				     VAR_DOMAIN, LOC_BLOCK,
2071				     &objfile->static_psymbols, valu,
2072				     0, language_unknown, objfile);
2073	      within_function = 1;
2074	      continue;
2075
2076	    case DNTT_TYPE_DOC_FUNCTION:
2077	      valu = dn_bufp->ddocfunc.hiaddr + ANOFFSET (objfile->section_offsets,
2078							  SECT_OFF_TEXT (objfile));
2079	      if (valu > texthigh)
2080		texthigh = valu;
2081	      valu = dn_bufp->ddocfunc.lowaddr +
2082		ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2083	      set_namestring (dn_bufp, &namestring, objfile);
2084	      if (dn_bufp->ddocfunc.global)
2085		add_psymbol_to_list (namestring, strlen (namestring),
2086				     VAR_DOMAIN, LOC_BLOCK,
2087				     &objfile->global_psymbols, valu,
2088				     0, language_unknown, objfile);
2089	      else
2090		add_psymbol_to_list (namestring, strlen (namestring),
2091				     VAR_DOMAIN, LOC_BLOCK,
2092				     &objfile->static_psymbols, valu,
2093				     0, language_unknown, objfile);
2094	      within_function = 1;
2095	      continue;
2096
2097	    case DNTT_TYPE_BEGIN:
2098	    case DNTT_TYPE_END:
2099	      /* We don't check MODULE end here, because there can be
2100	         symbols beyond the module end which properly belong to the
2101	         current psymtab -- so we wait till the next MODULE start */
2102
2103
2104#ifdef QUICK_LOOK_UP
2105	      if (scan_start == hp_symnum
2106		  && symcount == hp_symnum + 1)
2107		{
2108		  /* If there are NO globals in an executable,
2109		     PXDB's index to the globals will point to
2110		     the last record in the file, which is
2111		     probably an END MODULE, i.e. this record.
2112		     ignore it and be done! */
2113		  continue;
2114		}
2115#endif /* QUICK_LOOK_UP */
2116
2117	      /* Scope block begin/end.  We only care about function
2118	         and file blocks right now.  */
2119
2120	      if ((dn_bufp->dend.endkind == DNTT_TYPE_FUNCTION) ||
2121		  (dn_bufp->dend.endkind == DNTT_TYPE_DOC_FUNCTION))
2122		within_function = 0;
2123	      continue;
2124
2125	    case DNTT_TYPE_SVAR:
2126	    case DNTT_TYPE_DVAR:
2127	    case DNTT_TYPE_TYPEDEF:
2128	    case DNTT_TYPE_TAGDEF:
2129	      {
2130		/* Variables, typedefs an the like.  */
2131		enum address_class storage;
2132		domain_enum domain;
2133
2134		/* Don't add locals to the partial symbol table.  */
2135		if (within_function
2136		    && (dn_bufp->dblock.kind == DNTT_TYPE_SVAR
2137			|| dn_bufp->dblock.kind == DNTT_TYPE_DVAR))
2138		  continue;
2139
2140		/* TAGDEFs go into the structure domain.  */
2141		if (dn_bufp->dblock.kind == DNTT_TYPE_TAGDEF)
2142		  domain = STRUCT_DOMAIN;
2143		else
2144		  domain = VAR_DOMAIN;
2145
2146		/* What kind of "storage" does this use?  */
2147		if (dn_bufp->dblock.kind == DNTT_TYPE_SVAR)
2148		  storage = LOC_STATIC;
2149		else if (dn_bufp->dblock.kind == DNTT_TYPE_DVAR
2150			 && dn_bufp->ddvar.regvar)
2151		  storage = LOC_REGISTER;
2152		else if (dn_bufp->dblock.kind == DNTT_TYPE_DVAR)
2153		  storage = LOC_LOCAL;
2154		else
2155		  storage = LOC_UNDEF;
2156
2157		set_namestring (dn_bufp, &namestring, objfile);
2158		if (!pst)
2159		  {
2160		    pst = hpread_start_psymtab (objfile,
2161						"globals", 0,
2162						(hp_symnum
2163					 * sizeof (struct dntt_type_block)),
2164					      objfile->global_psymbols.next,
2165					     objfile->static_psymbols.next);
2166		  }
2167
2168		/* Compute address of the data symbol */
2169		valu = dn_bufp->dsvar.location;
2170		/* Relocate in case it's in a shared library */
2171		if (storage == LOC_STATIC)
2172		  valu += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
2173
2174		/* Luckily, dvar, svar, typedef, and tagdef all
2175		   have their "global" bit in the same place, so it works
2176		   (though it's bad programming practice) to reference
2177		   "dsvar.global" even though we may be looking at
2178		   any of the above four types. */
2179		if (dn_bufp->dsvar.global)
2180		  {
2181		    add_psymbol_to_list (namestring, strlen (namestring),
2182					 domain, storage,
2183					 &objfile->global_psymbols,
2184					 valu,
2185					 0, language_unknown, objfile);
2186		  }
2187		else
2188		  {
2189		    add_psymbol_to_list (namestring, strlen (namestring),
2190					 domain, storage,
2191					 &objfile->static_psymbols,
2192					 valu,
2193					 0, language_unknown, objfile);
2194		  }
2195
2196		/* For TAGDEF's, the above code added the tagname to the
2197		   struct domain. This will cause tag "t" to be found
2198		   on a reference of the form "(struct t) x". But for
2199		   C++ classes, "t" will also be a typename, which we
2200		   want to find on a reference of the form "ptype t".
2201		   Therefore, we also add "t" to the var domain.
2202		   Do the same for enum's due to the way aCC generates
2203		   debug info for these (see more extended comment
2204		   in hp-symtab-read.c).
2205		   We do the same for templates, so that "ptype t"
2206		   where "t" is a template also works. */
2207		if (dn_bufp->dblock.kind == DNTT_TYPE_TAGDEF &&
2208		  dn_bufp->dtype.type.dnttp.index < LNTT_SYMCOUNT (objfile))
2209		  {
2210		    int global = dn_bufp->dtag.global;
2211		    /* Look ahead to see if it's a C++ class */
2212		    dn_bufp = hpread_get_lntt (dn_bufp->dtype.type.dnttp.index, objfile);
2213		    if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS ||
2214			dn_bufp->dblock.kind == DNTT_TYPE_ENUM ||
2215			dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE)
2216		      {
2217			if (global)
2218			  {
2219			    add_psymbol_to_list (namestring, strlen (namestring),
2220						 VAR_DOMAIN, storage,
2221						 &objfile->global_psymbols,
2222						 dn_bufp->dsvar.location,
2223					      0, language_unknown, objfile);
2224			  }
2225			else
2226			  {
2227			    add_psymbol_to_list (namestring, strlen (namestring),
2228						 VAR_DOMAIN, storage,
2229						 &objfile->static_psymbols,
2230						 dn_bufp->dsvar.location,
2231					      0, language_unknown, objfile);
2232			  }
2233		      }
2234		  }
2235	      }
2236	      continue;
2237
2238	    case DNTT_TYPE_MEMENUM:
2239	    case DNTT_TYPE_CONST:
2240	      /* Constants and members of enumerated types.  */
2241	      set_namestring (dn_bufp, &namestring, objfile);
2242	      if (!pst)
2243		{
2244		  pst = hpread_start_psymtab (objfile,
2245					      "globals", 0,
2246					      (hp_symnum
2247					 * sizeof (struct dntt_type_block)),
2248					      objfile->global_psymbols.next,
2249					      objfile->static_psymbols.next);
2250		}
2251	      if (dn_bufp->dconst.global)
2252		add_psymbol_to_list (namestring, strlen (namestring),
2253				     VAR_DOMAIN, LOC_CONST,
2254				     &objfile->global_psymbols, 0,
2255				     0, language_unknown, objfile);
2256	      else
2257		add_psymbol_to_list (namestring, strlen (namestring),
2258				     VAR_DOMAIN, LOC_CONST,
2259				     &objfile->static_psymbols, 0,
2260				     0, language_unknown, objfile);
2261	      continue;
2262	    default:
2263	      continue;
2264	    }
2265	}
2266    }
2267
2268  /* End any pending partial symbol table. */
2269  if (pst)
2270    {
2271      hpread_end_psymtab (pst, psymtab_include_list, includes_used,
2272			  hp_symnum * sizeof (struct dntt_type_block),
2273			  0, dependency_list, dependencies_used);
2274    }
2275
2276  discard_cleanups (old_chain);
2277}
2278
2279/* Perform any local cleanups required when we are done with a particular
2280   objfile.  I.E, we are in the process of discarding all symbol information
2281   for an objfile, freeing up all memory held for it, and unlinking the
2282   objfile struct from the global list of known objfiles. */
2283
2284void
2285hpread_symfile_finish (struct objfile *objfile)
2286{
2287  if (objfile->sym_private != NULL)
2288    {
2289      xfree (objfile->sym_private);
2290    }
2291}
2292
2293
2294/* The remaining functions are all for internal use only.  */
2295
2296/* Various small functions to get entries in the debug symbol sections.  */
2297
2298static union dnttentry *
2299hpread_get_lntt (int index, struct objfile *objfile)
2300{
2301  return (union dnttentry *)
2302    &(LNTT (objfile)[(index * sizeof (struct dntt_type_block))]);
2303}
2304
2305static union dnttentry *
2306hpread_get_gntt (int index, struct objfile *objfile)
2307{
2308  return (union dnttentry *)
2309    &(GNTT (objfile)[(index * sizeof (struct dntt_type_block))]);
2310}
2311
2312static union sltentry *
2313hpread_get_slt (int index, struct objfile *objfile)
2314{
2315  return (union sltentry *) &(SLT (objfile)[index * sizeof (union sltentry)]);
2316}
2317
2318/* Get the low address associated with some symbol (typically the start
2319   of a particular source file or module).  Since that information is not
2320   stored as part of the DNTT_TYPE_MODULE or DNTT_TYPE_SRCFILE symbol we
2321   must infer it from the existence of DNTT_TYPE_FUNCTION symbols.  */
2322
2323static unsigned long
2324hpread_get_textlow (int global, int index, struct objfile *objfile,
2325		    int symcount)
2326{
2327  union dnttentry *dn_bufp = NULL;
2328  struct minimal_symbol *msymbol;
2329
2330  /* Look for a DNTT_TYPE_FUNCTION symbol.  */
2331  if (index < symcount)		/* symcount is the number of symbols in */
2332    {				/*   the dbinfo, LNTT table */
2333      do
2334	{
2335	  if (global)
2336	    dn_bufp = hpread_get_gntt (index++, objfile);
2337	  else
2338	    dn_bufp = hpread_get_lntt (index++, objfile);
2339	}
2340      while (dn_bufp->dblock.kind != DNTT_TYPE_FUNCTION
2341	     && dn_bufp->dblock.kind != DNTT_TYPE_DOC_FUNCTION
2342	     && dn_bufp->dblock.kind != DNTT_TYPE_END
2343	     && index < symcount);
2344    }
2345
2346  /* NOTE: cagney/2003-03-29: If !(index < symcount), dn_bufp is left
2347     undefined and that means that the test below is using a garbage
2348     pointer from the stack.  */
2349  gdb_assert (dn_bufp != NULL);
2350
2351  /* Avoid going past a DNTT_TYPE_END when looking for a DNTT_TYPE_FUNCTION.  This
2352     might happen when a sourcefile has no functions.  */
2353  if (dn_bufp->dblock.kind == DNTT_TYPE_END)
2354    return 0;
2355
2356  /* Avoid going past the end of the LNTT file */
2357  if (index == symcount)
2358    return 0;
2359
2360  /* The minimal symbols are typically more accurate for some reason.  */
2361  if (dn_bufp->dblock.kind == DNTT_TYPE_FUNCTION)
2362    msymbol = lookup_minimal_symbol (dn_bufp->dfunc.name + VT (objfile), NULL,
2363				     objfile);
2364  else				/* must be a DNTT_TYPE_DOC_FUNCTION */
2365    msymbol = lookup_minimal_symbol (dn_bufp->ddocfunc.name + VT (objfile), NULL,
2366				     objfile);
2367
2368  if (msymbol)
2369    return SYMBOL_VALUE_ADDRESS (msymbol);
2370  else
2371    return dn_bufp->dfunc.lowaddr;
2372}
2373
2374/* Allocate and partially fill a partial symtab.  It will be
2375   completely filled at the end of the symbol list.
2376
2377   SYMFILE_NAME is the name of the symbol-file we are reading from, and ADDR
2378   is the address relative to which its symbols are (incremental) or 0
2379   (normal). */
2380
2381static struct partial_symtab *
2382hpread_start_psymtab (struct objfile *objfile, char *filename,
2383		      CORE_ADDR textlow, int ldsymoff,
2384		      struct partial_symbol **global_syms,
2385		      struct partial_symbol **static_syms)
2386{
2387  int offset = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2388  extern void hpread_psymtab_to_symtab ();
2389  struct partial_symtab *result =
2390  start_psymtab_common (objfile, objfile->section_offsets,
2391			filename, textlow, global_syms, static_syms);
2392
2393  result->textlow += offset;
2394  result->read_symtab_private = (char *)
2395    obstack_alloc (&objfile->objfile_obstack, sizeof (struct symloc));
2396  LDSYMOFF (result) = ldsymoff;
2397  result->read_symtab = hpread_psymtab_to_symtab;
2398
2399  return result;
2400}
2401
2402
2403/* Close off the current usage of PST.
2404   Returns PST or NULL if the partial symtab was empty and thrown away.
2405
2406   capping_symbol_offset  --Byte index in LNTT or GNTT of the
2407   last symbol processed during the build
2408   of the previous pst.
2409
2410   FIXME:  List variables and peculiarities of same.  */
2411
2412static struct partial_symtab *
2413hpread_end_psymtab (struct partial_symtab *pst, char **include_list,
2414		    int num_includes, int capping_symbol_offset,
2415		    CORE_ADDR capping_text,
2416		    struct partial_symtab **dependency_list,
2417		    int number_dependencies)
2418{
2419  int i;
2420  struct objfile *objfile = pst->objfile;
2421  int offset = ANOFFSET (pst->section_offsets, SECT_OFF_TEXT (objfile));
2422
2423#ifdef DUMPING
2424  /* Turn on to see what kind of a psymtab we've built. */
2425  static int dumping = 0;
2426#endif
2427
2428  if (capping_symbol_offset != -1)
2429    LDSYMLEN (pst) = capping_symbol_offset - LDSYMOFF (pst);
2430  else
2431    LDSYMLEN (pst) = 0;
2432  pst->texthigh = capping_text + offset;
2433
2434  pst->n_global_syms =
2435    objfile->global_psymbols.next - (objfile->global_psymbols.list + pst->globals_offset);
2436  pst->n_static_syms =
2437    objfile->static_psymbols.next - (objfile->static_psymbols.list + pst->statics_offset);
2438
2439#ifdef DUMPING
2440  if (dumping)
2441    {
2442      printf ("\nPst %s, LDSYMOFF %x (%x), LDSYMLEN %x (%x), globals %d, statics %d\n",
2443	      pst->filename,
2444	      LDSYMOFF (pst),
2445	      LDSYMOFF (pst) / sizeof (struct dntt_type_block),
2446	      LDSYMLEN (pst),
2447	      LDSYMLEN (pst) / sizeof (struct dntt_type_block),
2448	      pst->n_global_syms, pst->n_static_syms);
2449    }
2450#endif
2451
2452  pst->number_of_dependencies = number_dependencies;
2453  if (number_dependencies)
2454    {
2455      pst->dependencies = (struct partial_symtab **)
2456	obstack_alloc (&objfile->objfile_obstack,
2457		    number_dependencies * sizeof (struct partial_symtab *));
2458      memcpy (pst->dependencies, dependency_list,
2459	      number_dependencies * sizeof (struct partial_symtab *));
2460    }
2461  else
2462    pst->dependencies = 0;
2463
2464  for (i = 0; i < num_includes; i++)
2465    {
2466      struct partial_symtab *subpst =
2467      allocate_psymtab (include_list[i], objfile);
2468
2469      subpst->section_offsets = pst->section_offsets;
2470      subpst->read_symtab_private =
2471	(char *) obstack_alloc (&objfile->objfile_obstack,
2472				sizeof (struct symloc));
2473      LDSYMOFF (subpst) =
2474	LDSYMLEN (subpst) =
2475	subpst->textlow =
2476	subpst->texthigh = 0;
2477
2478      /* We could save slight bits of space by only making one of these,
2479         shared by the entire set of include files.  FIXME-someday.  */
2480      subpst->dependencies = (struct partial_symtab **)
2481	obstack_alloc (&objfile->objfile_obstack,
2482		       sizeof (struct partial_symtab *));
2483      subpst->dependencies[0] = pst;
2484      subpst->number_of_dependencies = 1;
2485
2486      subpst->globals_offset =
2487	subpst->n_global_syms =
2488	subpst->statics_offset =
2489	subpst->n_static_syms = 0;
2490
2491      subpst->readin = 0;
2492      subpst->symtab = 0;
2493      subpst->read_symtab = pst->read_symtab;
2494    }
2495
2496  sort_pst_symbols (pst);
2497
2498  /* If there is already a psymtab or symtab for a file of this name, remove it.
2499     (If there is a symtab, more drastic things also happen.)
2500     This happens in VxWorks.  */
2501  free_named_symtabs (pst->filename);
2502
2503  if (num_includes == 0
2504      && number_dependencies == 0
2505      && pst->n_global_syms == 0
2506      && pst->n_static_syms == 0)
2507    {
2508      /* Throw away this psymtab, it's empty.  We can't deallocate it, since
2509         it is on the obstack, but we can forget to chain it on the list.
2510         Empty psymtabs happen as a result of header files which don't have
2511         any symbols in them.  There can be a lot of them.  But this check
2512         is wrong, in that a psymtab with N_SLINE entries but nothing else
2513         is not empty, but we don't realize that.  Fixing that without slowing
2514         things down might be tricky.
2515         It's also wrong if we're using the quick look-up tables, as
2516         we can get empty psymtabs from modules with no routines in
2517         them. */
2518
2519      discard_psymtab (pst);
2520
2521      /* Indicate that psymtab was thrown away.  */
2522      pst = (struct partial_symtab *) NULL;
2523
2524    }
2525  return pst;
2526}
2527
2528
2529/* Get the nesting depth for the source line identified by INDEX.  */
2530
2531static unsigned long
2532hpread_get_scope_start (sltpointer index, struct objfile *objfile)
2533{
2534  union sltentry *sl_bufp;
2535
2536  sl_bufp = hpread_get_slt (index, objfile);
2537  return sl_bufp->sspec.backptr.dnttp.index;
2538}
2539
2540/* Get the source line number the the line identified by INDEX.  */
2541
2542static unsigned long
2543hpread_get_line (sltpointer index, struct objfile *objfile)
2544{
2545  union sltentry *sl_bufp;
2546
2547  sl_bufp = hpread_get_slt (index, objfile);
2548  return sl_bufp->snorm.line;
2549}
2550
2551/* Find the code address associated with a given sltpointer */
2552
2553static CORE_ADDR
2554hpread_get_location (sltpointer index, struct objfile *objfile)
2555{
2556  union sltentry *sl_bufp;
2557  int i;
2558
2559  /* code location of special sltentrys is determined from context */
2560  sl_bufp = hpread_get_slt (index, objfile);
2561
2562  if (sl_bufp->snorm.sltdesc == SLT_END)
2563    {
2564      /* find previous normal sltentry and get address */
2565      for (i = 0; ((sl_bufp->snorm.sltdesc != SLT_NORMAL) &&
2566		   (sl_bufp->snorm.sltdesc != SLT_NORMAL_OFFSET) &&
2567		   (sl_bufp->snorm.sltdesc != SLT_EXIT)); i++)
2568	sl_bufp = hpread_get_slt (index - i, objfile);
2569      if (sl_bufp->snorm.sltdesc == SLT_NORMAL_OFFSET)
2570	return sl_bufp->snormoff.address;
2571      else
2572	return sl_bufp->snorm.address;
2573    }
2574
2575  /* find next normal sltentry and get address */
2576  for (i = 0; ((sl_bufp->snorm.sltdesc != SLT_NORMAL) &&
2577	       (sl_bufp->snorm.sltdesc != SLT_NORMAL_OFFSET) &&
2578	       (sl_bufp->snorm.sltdesc != SLT_EXIT)); i++)
2579    sl_bufp = hpread_get_slt (index + i, objfile);
2580  if (sl_bufp->snorm.sltdesc == SLT_NORMAL_OFFSET)
2581    return sl_bufp->snormoff.address;
2582  else
2583    return sl_bufp->snorm.address;
2584}
2585
2586
2587/* Return 1 if an HP debug symbol of type KIND has a name associated with
2588 * it, else return 0. (This function is not currently used, but I'll
2589 * leave it here in case it proves useful later on. - RT).
2590 */
2591
2592static int
2593hpread_has_name (enum dntt_entry_type kind)
2594{
2595  switch (kind)
2596    {
2597    case DNTT_TYPE_SRCFILE:
2598    case DNTT_TYPE_MODULE:
2599    case DNTT_TYPE_FUNCTION:
2600    case DNTT_TYPE_DOC_FUNCTION:
2601    case DNTT_TYPE_ENTRY:
2602    case DNTT_TYPE_IMPORT:
2603    case DNTT_TYPE_LABEL:
2604    case DNTT_TYPE_FPARAM:
2605    case DNTT_TYPE_SVAR:
2606    case DNTT_TYPE_DVAR:
2607    case DNTT_TYPE_CONST:
2608    case DNTT_TYPE_TYPEDEF:
2609    case DNTT_TYPE_TAGDEF:
2610    case DNTT_TYPE_MEMENUM:
2611    case DNTT_TYPE_FIELD:
2612    case DNTT_TYPE_SA:
2613    case DNTT_TYPE_BLOCKDATA:
2614    case DNTT_TYPE_MEMFUNC:
2615    case DNTT_TYPE_DOC_MEMFUNC:
2616      return 1;
2617
2618    case DNTT_TYPE_BEGIN:
2619    case DNTT_TYPE_END:
2620    case DNTT_TYPE_POINTER:
2621    case DNTT_TYPE_ENUM:
2622    case DNTT_TYPE_SET:
2623    case DNTT_TYPE_ARRAY:
2624    case DNTT_TYPE_STRUCT:
2625    case DNTT_TYPE_UNION:
2626    case DNTT_TYPE_VARIANT:
2627    case DNTT_TYPE_FILE:
2628    case DNTT_TYPE_FUNCTYPE:
2629    case DNTT_TYPE_SUBRANGE:
2630    case DNTT_TYPE_WITH:
2631    case DNTT_TYPE_COMMON:
2632    case DNTT_TYPE_COBSTRUCT:
2633    case DNTT_TYPE_XREF:
2634    case DNTT_TYPE_MACRO:
2635    case DNTT_TYPE_CLASS_SCOPE:
2636    case DNTT_TYPE_REFERENCE:
2637    case DNTT_TYPE_PTRMEM:
2638    case DNTT_TYPE_PTRMEMFUNC:
2639    case DNTT_TYPE_CLASS:
2640    case DNTT_TYPE_GENFIELD:
2641    case DNTT_TYPE_VFUNC:
2642    case DNTT_TYPE_MEMACCESS:
2643    case DNTT_TYPE_INHERITANCE:
2644    case DNTT_TYPE_FRIEND_CLASS:
2645    case DNTT_TYPE_FRIEND_FUNC:
2646    case DNTT_TYPE_MODIFIER:
2647    case DNTT_TYPE_OBJECT_ID:
2648    case DNTT_TYPE_TEMPLATE:
2649    case DNTT_TYPE_TEMPLATE_ARG:
2650    case DNTT_TYPE_FUNC_TEMPLATE:
2651    case DNTT_TYPE_LINK:
2652      /* DNTT_TYPE_DYN_ARRAY_DESC ? */
2653      /* DNTT_TYPE_DESC_SUBRANGE ? */
2654      /* DNTT_TYPE_BEGIN_EXT ? */
2655      /* DNTT_TYPE_INLN ? */
2656      /* DNTT_TYPE_INLN_LIST ? */
2657      /* DNTT_TYPE_ALIAS ? */
2658    default:
2659      return 0;
2660    }
2661}
2662
2663/* Do the dirty work of reading in the full symbol from a partial symbol
2664   table.  */
2665
2666static void
2667hpread_psymtab_to_symtab_1 (struct partial_symtab *pst)
2668{
2669  struct cleanup *old_chain;
2670  int i;
2671
2672  /* Get out quick if passed junk.  */
2673  if (!pst)
2674    return;
2675
2676  /* Complain if we've already read in this symbol table.  */
2677  if (pst->readin)
2678    {
2679      fprintf_unfiltered (gdb_stderr, "Psymtab for %s already read in."
2680			  "  Shouldn't happen.\n",
2681			  pst->filename);
2682      return;
2683    }
2684
2685  /* Read in all partial symtabs on which this one is dependent */
2686  for (i = 0; i < pst->number_of_dependencies; i++)
2687    if (!pst->dependencies[i]->readin)
2688      {
2689	/* Inform about additional files that need to be read in.  */
2690	if (info_verbose)
2691	  {
2692	    fputs_filtered (" ", gdb_stdout);
2693	    wrap_here ("");
2694	    fputs_filtered ("and ", gdb_stdout);
2695	    wrap_here ("");
2696	    printf_filtered ("%s...", pst->dependencies[i]->filename);
2697	    wrap_here ("");	/* Flush output */
2698	    gdb_flush (gdb_stdout);
2699	  }
2700	hpread_psymtab_to_symtab_1 (pst->dependencies[i]);
2701      }
2702
2703  /* If it's real...  */
2704  if (LDSYMLEN (pst))
2705    {
2706      /* Init stuff necessary for reading in symbols */
2707      buildsym_init ();
2708      old_chain = make_cleanup (really_free_pendings, 0);
2709
2710      pst->symtab =
2711	hpread_expand_symtab (pst->objfile, LDSYMOFF (pst), LDSYMLEN (pst),
2712			      pst->textlow, pst->texthigh - pst->textlow,
2713			      pst->section_offsets, pst->filename);
2714
2715      do_cleanups (old_chain);
2716    }
2717
2718  pst->readin = 1;
2719}
2720
2721/* Read in all of the symbols for a given psymtab for real.
2722   Be verbose about it if the user wants that.  */
2723
2724static void
2725hpread_psymtab_to_symtab (struct partial_symtab *pst)
2726{
2727  /* Get out quick if given junk.  */
2728  if (!pst)
2729    return;
2730
2731  /* Sanity check.  */
2732  if (pst->readin)
2733    {
2734      fprintf_unfiltered (gdb_stderr, "Psymtab for %s already read in."
2735			  "  Shouldn't happen.\n",
2736			  pst->filename);
2737      return;
2738    }
2739
2740  /* elz: setting the flag to indicate that the code of the target
2741     was compiled using an HP compiler (aCC, cc)
2742     the processing_acc_compilation variable is declared in the
2743     file buildsym.h, the HP_COMPILED_TARGET is defined to be equal
2744     to 3 in the file tm_hppa.h */
2745
2746  processing_gcc_compilation = 0;
2747
2748  if (LDSYMLEN (pst) || pst->number_of_dependencies)
2749    {
2750      /* Print the message now, before reading the string table,
2751         to avoid disconcerting pauses.  */
2752      if (info_verbose)
2753	{
2754	  printf_filtered ("Reading in symbols for %s...", pst->filename);
2755	  gdb_flush (gdb_stdout);
2756	}
2757
2758      hpread_psymtab_to_symtab_1 (pst);
2759
2760      /* Match with global symbols.  This only needs to be done once,
2761         after all of the symtabs and dependencies have been read in.   */
2762      scan_file_globals (pst->objfile);
2763
2764      /* Finish up the debug error message.  */
2765      if (info_verbose)
2766	printf_filtered ("done.\n");
2767    }
2768}
2769
2770/* Read in a defined section of a specific object file's symbols.
2771
2772   DESC is the file descriptor for the file, positioned at the
2773   beginning of the symtab
2774   SYM_OFFSET is the offset within the file of
2775   the beginning of the symbols we want to read
2776   SYM_SIZE is the size of the symbol info to read in.
2777   TEXT_OFFSET is the beginning of the text segment we are reading symbols for
2778   TEXT_SIZE is the size of the text segment read in.
2779   SECTION_OFFSETS are the relocation offsets which get added to each symbol. */
2780
2781static struct symtab *
2782hpread_expand_symtab (struct objfile *objfile, int sym_offset, int sym_size,
2783		      CORE_ADDR text_offset, int text_size,
2784		      struct section_offsets *section_offsets, char *filename)
2785{
2786  char *namestring;
2787  union dnttentry *dn_bufp;
2788  unsigned max_symnum;
2789  int at_module_boundary = 0;
2790  /* 1 => at end, -1 => at beginning */
2791
2792  int sym_index = sym_offset / sizeof (struct dntt_type_block);
2793
2794  current_objfile = objfile;
2795  subfile_stack = 0;
2796
2797  last_source_file = 0;
2798
2799  /* Demangling style -- if EDG style already set, don't change it,
2800     as HP style causes some problems with the KAI EDG compiler */
2801  if (current_demangling_style != edg_demangling)
2802    {
2803      /* Otherwise, ensure that we are using HP style demangling */
2804      set_demangling_style (HP_DEMANGLING_STYLE_STRING);
2805    }
2806
2807  dn_bufp = hpread_get_lntt (sym_index, objfile);
2808  if (!((dn_bufp->dblock.kind == (unsigned char) DNTT_TYPE_SRCFILE) ||
2809	(dn_bufp->dblock.kind == (unsigned char) DNTT_TYPE_MODULE)))
2810    {
2811      start_symtab ("globals", NULL, 0);
2812      record_debugformat ("HP");
2813    }
2814
2815  /* The psymtab builder (hp-psymtab-read.c) is the one that
2816   * determined the "sym_size" argument (i.e. how many DNTT symbols
2817   * are in this symtab), which we use to compute "max_symnum"
2818   * (point in DNTT to which we read).
2819   *
2820   * Perhaps this should be changed so that
2821   * process_one_debug_symbol() "knows" when
2822   * to stop reading (based on reading from the MODULE to the matching
2823   * END), and take out this reliance on a #-syms being passed in...
2824   * (I'm worried about the reliability of this number). But I'll
2825   * leave it as-is, for now. - RT
2826   *
2827   * The change above has been made. I've left the "for" loop control
2828   * in to prepare for backing this out again. -JB
2829   */
2830  max_symnum = sym_size / sizeof (struct dntt_type_block);
2831  /* No reason to multiply on pst side and divide on sym side... FIXME */
2832
2833  /* Read in and process each debug symbol within the specified range.
2834   */
2835  for (symnum = 0;
2836       symnum < max_symnum;
2837       symnum++)
2838    {
2839      QUIT;			/* Allow this to be interruptable */
2840      dn_bufp = hpread_get_lntt (sym_index + symnum, objfile);
2841
2842      if (dn_bufp->dblock.extension)
2843	continue;
2844
2845      /* Yow!  We call set_namestring on things without names!  */
2846      set_namestring (dn_bufp, &namestring, objfile);
2847
2848      hpread_process_one_debug_symbol (dn_bufp, namestring, section_offsets,
2849				       objfile, text_offset, text_size,
2850				       filename, symnum + sym_index,
2851				       &at_module_boundary
2852	);
2853
2854      /* OLD COMMENTS: This routine is only called for psts.  All psts
2855       * correspond to MODULES.  If we ever do lazy-reading of globals
2856       * from the LNTT, then there will be a pst which ends when the
2857       * LNTT ends, and not at an END MODULE entry.  Then we'll have
2858       * to re-visit this break.
2859
2860       if( at_end_of_module )
2861       break;
2862
2863       */
2864
2865      /* We no longer break out of the loop when we reach the end of a
2866         module. The reason is that with CTTI, the compiler can generate
2867         function symbols (for template function instantiations) which are not
2868         in any module; typically they show up beyond a module's end, and
2869         before the next module's start.  We include them in the current
2870         module.  However, we still don't trust the MAX_SYMNUM value from
2871         the psymtab, so we break out if we enter a new module. */
2872
2873      if (at_module_boundary == -1)
2874	break;
2875    }
2876
2877  current_objfile = NULL;
2878  deprecated_hp_som_som_object_present = 1;	/* Indicate we've processed an HP SOM SOM file */
2879
2880  return end_symtab (text_offset + text_size, objfile, SECT_OFF_TEXT (objfile));
2881}
2882
2883
2884
2885
2886/* Convert basic types from HP debug format into GDB internal format.  */
2887
2888static int
2889hpread_type_translate (dnttpointer typep)
2890{
2891  if (!typep.dntti.immediate)
2892    {
2893      error ("error in hpread_type_translate\n.");
2894      return FT_VOID;
2895    }
2896
2897  switch (typep.dntti.type)
2898    {
2899    case HP_TYPE_BOOLEAN:
2900    case HP_TYPE_BOOLEAN_S300_COMPAT:
2901    case HP_TYPE_BOOLEAN_VAX_COMPAT:
2902      return FT_BOOLEAN;
2903    case HP_TYPE_CHAR:		/* C signed char, C++ plain char */
2904
2905    case HP_TYPE_WIDE_CHAR:
2906      return FT_CHAR;
2907    case HP_TYPE_INT:
2908      if (typep.dntti.bitlength <= 8)
2909	return FT_SIGNED_CHAR;	/* C++ signed char */
2910      if (typep.dntti.bitlength <= 16)
2911	return FT_SHORT;
2912      if (typep.dntti.bitlength <= 32)
2913	return FT_INTEGER;
2914      return FT_LONG_LONG;
2915    case HP_TYPE_LONG:
2916      if (typep.dntti.bitlength <= 8)
2917	return FT_SIGNED_CHAR;	/* C++ signed char. */
2918      return FT_LONG;
2919    case HP_TYPE_UNSIGNED_LONG:
2920      if (typep.dntti.bitlength <= 8)
2921	return FT_UNSIGNED_CHAR;	/* C/C++ unsigned char */
2922      if (typep.dntti.bitlength <= 16)
2923	return FT_UNSIGNED_SHORT;
2924      if (typep.dntti.bitlength <= 32)
2925	return FT_UNSIGNED_LONG;
2926      return FT_UNSIGNED_LONG_LONG;
2927    case HP_TYPE_UNSIGNED_INT:
2928      if (typep.dntti.bitlength <= 8)
2929	return FT_UNSIGNED_CHAR;
2930      if (typep.dntti.bitlength <= 16)
2931	return FT_UNSIGNED_SHORT;
2932      if (typep.dntti.bitlength <= 32)
2933	return FT_UNSIGNED_INTEGER;
2934      return FT_UNSIGNED_LONG_LONG;
2935    case HP_TYPE_REAL:
2936    case HP_TYPE_REAL_3000:
2937    case HP_TYPE_DOUBLE:
2938      if (typep.dntti.bitlength == 64)
2939	return FT_DBL_PREC_FLOAT;
2940      if (typep.dntti.bitlength == 128)
2941	return FT_EXT_PREC_FLOAT;
2942      return FT_FLOAT;
2943    case HP_TYPE_COMPLEX:
2944    case HP_TYPE_COMPLEXS3000:
2945      if (typep.dntti.bitlength == 128)
2946	return FT_DBL_PREC_COMPLEX;
2947      if (typep.dntti.bitlength == 192)
2948	return FT_EXT_PREC_COMPLEX;
2949      return FT_COMPLEX;
2950    case HP_TYPE_VOID:
2951      return FT_VOID;
2952    case HP_TYPE_STRING200:
2953    case HP_TYPE_LONGSTRING200:
2954    case HP_TYPE_FTN_STRING_SPEC:
2955    case HP_TYPE_MOD_STRING_SPEC:
2956    case HP_TYPE_MOD_STRING_3000:
2957    case HP_TYPE_FTN_STRING_S300_COMPAT:
2958    case HP_TYPE_FTN_STRING_VAX_COMPAT:
2959      return FT_STRING;
2960    case HP_TYPE_TEMPLATE_ARG:
2961      return FT_TEMPLATE_ARG;
2962    case HP_TYPE_TEXT:
2963    case HP_TYPE_FLABEL:
2964    case HP_TYPE_PACKED_DECIMAL:
2965    case HP_TYPE_ANYPOINTER:
2966    case HP_TYPE_GLOBAL_ANYPOINTER:
2967    case HP_TYPE_LOCAL_ANYPOINTER:
2968    default:
2969      warning ("hpread_type_translate: unhandled type code.\n");
2970      return FT_VOID;
2971    }
2972}
2973
2974/* Given a position in the DNTT, return a pointer to the
2975 * already-built "struct type" (if any), for the type defined
2976 * at that position.
2977 */
2978
2979static struct type **
2980hpread_lookup_type (dnttpointer hp_type, struct objfile *objfile)
2981{
2982  unsigned old_len;
2983  int index = hp_type.dnttp.index;
2984  int size_changed = 0;
2985
2986  /* The immediate flag indicates this doesn't actually point to
2987   * a type DNTT.
2988   */
2989  if (hp_type.dntti.immediate)
2990    return NULL;
2991
2992  /* For each objfile, we maintain a "type vector".
2993   * This an array of "struct type *"'s with one pointer per DNTT index.
2994   * Given a DNTT index, we look in this array to see if we have
2995   * already processed this DNTT and if it is a type definition.
2996   * If so, then we can locate a pointer to the already-built
2997   * "struct type", and not build it again.
2998   *
2999   * The need for this arises because our DNTT-walking code wanders
3000   * around. In particular, it will encounter the same type multiple
3001   * times (once for each object of that type). We don't want to
3002   * built multiple "struct type"'s for the same thing.
3003   *
3004   * Having said this, I should point out that this type-vector is
3005   * an expensive way to keep track of this. If most DNTT entries are
3006   * 3 words, the type-vector will be 1/3 the size of the DNTT itself.
3007   * Alternative solutions:
3008   * - Keep a compressed or hashed table. Less memory, but more expensive
3009   *   to search and update.
3010   * - (Suggested by JB): Overwrite the DNTT entry itself
3011   *   with the info. Create a new type code "ALREADY_BUILT", and modify
3012   *   the DNTT to have that type code and point to the already-built entry.
3013   * -RT
3014   */
3015
3016  if (index < LNTT_SYMCOUNT (objfile))
3017    {
3018      if (index >= DNTT_TYPE_VECTOR_LENGTH (objfile))
3019	{
3020	  old_len = DNTT_TYPE_VECTOR_LENGTH (objfile);
3021
3022	  /* See if we need to allocate a type-vector. */
3023	  if (old_len == 0)
3024	    {
3025	      DNTT_TYPE_VECTOR_LENGTH (objfile) = LNTT_SYMCOUNT (objfile) + GNTT_SYMCOUNT (objfile);
3026	      DNTT_TYPE_VECTOR (objfile) = (struct type **)
3027		xmalloc (DNTT_TYPE_VECTOR_LENGTH (objfile) * sizeof (struct type *));
3028	      memset (&DNTT_TYPE_VECTOR (objfile)[old_len], 0,
3029		      (DNTT_TYPE_VECTOR_LENGTH (objfile) - old_len) *
3030		      sizeof (struct type *));
3031	    }
3032
3033	  /* See if we need to resize type-vector. With my change to
3034	   * initially allocate a correct-size type-vector, this code
3035	   * should no longer trigger.
3036	   */
3037	  while (index >= DNTT_TYPE_VECTOR_LENGTH (objfile))
3038	    {
3039	      DNTT_TYPE_VECTOR_LENGTH (objfile) *= 2;
3040	      size_changed = 1;
3041	    }
3042	  if (size_changed)
3043	    {
3044	      DNTT_TYPE_VECTOR (objfile) = (struct type **)
3045		xrealloc ((char *) DNTT_TYPE_VECTOR (objfile),
3046		   (DNTT_TYPE_VECTOR_LENGTH (objfile) * sizeof (struct type *)));
3047
3048	      memset (&DNTT_TYPE_VECTOR (objfile)[old_len], 0,
3049		      (DNTT_TYPE_VECTOR_LENGTH (objfile) - old_len) *
3050		      sizeof (struct type *));
3051	    }
3052
3053	}
3054      return &DNTT_TYPE_VECTOR (objfile)[index];
3055    }
3056  else
3057    return NULL;
3058}
3059
3060/* Possibly allocate a GDB internal type so we can internalize HP_TYPE.
3061   Note we'll just return the address of a GDB internal type if we already
3062   have it lying around.  */
3063
3064static struct type *
3065hpread_alloc_type (dnttpointer hp_type, struct objfile *objfile)
3066{
3067  struct type **type_addr;
3068
3069  type_addr = hpread_lookup_type (hp_type, objfile);
3070  if (*type_addr == 0)
3071    {
3072      *type_addr = alloc_type (objfile);
3073
3074      /* A hack - if we really are a C++ class symbol, then this default
3075       * will get overriden later on.
3076       */
3077      TYPE_CPLUS_SPECIFIC (*type_addr)
3078	= (struct cplus_struct_type *) &cplus_struct_default;
3079    }
3080
3081  return *type_addr;
3082}
3083
3084/* Read a native enumerated type and return it in GDB internal form.  */
3085
3086static struct type *
3087hpread_read_enum_type (dnttpointer hp_type, union dnttentry *dn_bufp,
3088		       struct objfile *objfile)
3089{
3090  struct type *type;
3091  struct pending **symlist, *osyms, *syms;
3092  struct pending *local_list = NULL;
3093  int o_nsyms, nsyms = 0;
3094  dnttpointer mem;
3095  union dnttentry *memp;
3096  char *name;
3097  long n;
3098  struct symbol *sym;
3099
3100  /* Allocate a GDB type. If we've already read in this enum type,
3101   * it'll return the already built GDB type, so stop here.
3102   * (Note: I added this check, to conform with what's done for
3103   *  struct, union, class.
3104   *  I assume this is OK. - RT)
3105   */
3106  type = hpread_alloc_type (hp_type, objfile);
3107  if (TYPE_CODE (type) == TYPE_CODE_ENUM)
3108    return type;
3109
3110  /* HP C supports "sized enums", where a specifier such as "short" or
3111     "char" can be used to get enums of different sizes. So don't assume
3112     an enum is always 4 bytes long. pai/1997-08-21 */
3113  TYPE_LENGTH (type) = dn_bufp->denum.bitlength / 8;
3114
3115  symlist = &file_symbols;
3116  osyms = *symlist;
3117  o_nsyms = osyms ? osyms->nsyms : 0;
3118
3119  /* Get a name for each member and add it to our list of members.
3120   * The list of "mem" SOM records we are walking should all be
3121   * SOM type DNTT_TYPE_MEMENUM (not checked).
3122   */
3123  mem = dn_bufp->denum.firstmem;
3124  while (mem.word && mem.word != DNTTNIL)
3125    {
3126      memp = hpread_get_lntt (mem.dnttp.index, objfile);
3127
3128      name = VT (objfile) + memp->dmember.name;
3129      sym = (struct symbol *) obstack_alloc (&objfile->objfile_obstack,
3130					     sizeof (struct symbol));
3131      memset (sym, 0, sizeof (struct symbol));
3132      DEPRECATED_SYMBOL_NAME (sym) = obsavestring (name, strlen (name),
3133					&objfile->objfile_obstack);
3134      SYMBOL_CLASS (sym) = LOC_CONST;
3135      SYMBOL_DOMAIN (sym) = VAR_DOMAIN;
3136      SYMBOL_VALUE (sym) = memp->dmember.value;
3137      add_symbol_to_list (sym, symlist);
3138      nsyms++;
3139      mem = memp->dmember.nextmem;
3140    }
3141
3142  /* Now that we know more about the enum, fill in more info.  */
3143  TYPE_CODE (type) = TYPE_CODE_ENUM;
3144  TYPE_FLAGS (type) &= ~TYPE_FLAG_STUB;
3145  TYPE_NFIELDS (type) = nsyms;
3146  TYPE_FIELDS (type) = (struct field *)
3147    obstack_alloc (&objfile->objfile_obstack, sizeof (struct field) * nsyms);
3148
3149  /* Find the symbols for the members and put them into the type.
3150     The symbols can be found in the symlist that we put them on
3151     to cause them to be defined.  osyms contains the old value
3152     of that symlist; everything up to there was defined by us.
3153
3154     Note that we preserve the order of the enum constants, so
3155     that in something like "enum {FOO, LAST_THING=FOO}" we print
3156     FOO, not LAST_THING.  */
3157  for (syms = *symlist, n = 0; syms; syms = syms->next)
3158    {
3159      int j = 0;
3160      if (syms == osyms)
3161	j = o_nsyms;
3162      for (; j < syms->nsyms; j++, n++)
3163	{
3164	  struct symbol *xsym = syms->symbol[j];
3165	  SYMBOL_TYPE (xsym) = type;
3166	  TYPE_FIELD_NAME (type, n) = DEPRECATED_SYMBOL_NAME (xsym);
3167	  TYPE_FIELD_BITPOS (type, n) = SYMBOL_VALUE (xsym);
3168	  TYPE_FIELD_BITSIZE (type, n) = 0;
3169	  TYPE_FIELD_STATIC_KIND (type, n) = 0;
3170	}
3171      if (syms == osyms)
3172	break;
3173    }
3174
3175  return type;
3176}
3177
3178/* Read and internalize a native function debug symbol.  */
3179
3180static struct type *
3181hpread_read_function_type (dnttpointer hp_type, union dnttentry *dn_bufp,
3182			   struct objfile *objfile, int newblock)
3183{
3184  struct type *type, *type1;
3185  struct pending *syms;
3186  struct pending *local_list = NULL;
3187  int nsyms = 0;
3188  dnttpointer param;
3189  union dnttentry *paramp;
3190  char *name;
3191  long n;
3192  struct symbol *sym;
3193  int record_args = 1;
3194
3195  /* See if we've already read in this type.  */
3196  type = hpread_alloc_type (hp_type, objfile);
3197  if (TYPE_CODE (type) == TYPE_CODE_FUNC)
3198    {
3199      record_args = 0;		/* already read in, don't modify type */
3200    }
3201  else
3202    {
3203      /* Nope, so read it in and store it away.  */
3204      if (dn_bufp->dblock.kind == DNTT_TYPE_FUNCTION ||
3205	  dn_bufp->dblock.kind == DNTT_TYPE_MEMFUNC)
3206	type1 = lookup_function_type (hpread_type_lookup (dn_bufp->dfunc.retval,
3207							  objfile));
3208      else if (dn_bufp->dblock.kind == DNTT_TYPE_FUNCTYPE)
3209	type1 = lookup_function_type (hpread_type_lookup (dn_bufp->dfunctype.retval,
3210							  objfile));
3211      else			/* expect DNTT_TYPE_FUNC_TEMPLATE */
3212	type1 = lookup_function_type (hpread_type_lookup (dn_bufp->dfunc_template.retval,
3213							  objfile));
3214      replace_type (type, type1);
3215
3216      /* Mark it -- in the middle of processing */
3217      TYPE_FLAGS (type) |= TYPE_FLAG_INCOMPLETE;
3218    }
3219
3220  /* Now examine each parameter noting its type, location, and a
3221     wealth of other information.  */
3222  if (dn_bufp->dblock.kind == DNTT_TYPE_FUNCTION ||
3223      dn_bufp->dblock.kind == DNTT_TYPE_MEMFUNC)
3224    param = dn_bufp->dfunc.firstparam;
3225  else if (dn_bufp->dblock.kind == DNTT_TYPE_FUNCTYPE)
3226    param = dn_bufp->dfunctype.firstparam;
3227  else				/* expect DNTT_TYPE_FUNC_TEMPLATE */
3228    param = dn_bufp->dfunc_template.firstparam;
3229  while (param.word && param.word != DNTTNIL)
3230    {
3231      paramp = hpread_get_lntt (param.dnttp.index, objfile);
3232      nsyms++;
3233      param = paramp->dfparam.nextparam;
3234
3235      /* Get the name.  */
3236      name = VT (objfile) + paramp->dfparam.name;
3237      sym = (struct symbol *) obstack_alloc (&objfile->objfile_obstack,
3238					     sizeof (struct symbol));
3239      (void) memset (sym, 0, sizeof (struct symbol));
3240      DEPRECATED_SYMBOL_NAME (sym) = obsavestring (name, strlen (name),
3241					&objfile->objfile_obstack);
3242
3243      /* Figure out where it lives.  */
3244      if (paramp->dfparam.regparam)
3245	SYMBOL_CLASS (sym) = LOC_REGPARM;
3246      else if (paramp->dfparam.indirect)
3247	SYMBOL_CLASS (sym) = LOC_REF_ARG;
3248      else
3249	SYMBOL_CLASS (sym) = LOC_ARG;
3250      SYMBOL_DOMAIN (sym) = VAR_DOMAIN;
3251      if (paramp->dfparam.copyparam)
3252	{
3253	  SYMBOL_VALUE (sym) = paramp->dfparam.location;
3254	  SYMBOL_VALUE (sym)
3255	    += hpread_adjust_stack_address (CURRENT_FUNCTION_VALUE (objfile));
3256
3257	  /* This is likely a pass-by-invisible reference parameter,
3258	     Hack on the symbol class to make GDB happy.  */
3259	  /* ??rehrauer: This appears to be broken w/r/t to passing
3260	     C values of type float and struct.  Perhaps this ought
3261	     to be highighted as a special case, but for now, just
3262	     allowing these to be LOC_ARGs seems to work fine.
3263	   */
3264#if 0
3265	  SYMBOL_CLASS (sym) = LOC_REGPARM_ADDR;
3266#endif
3267	}
3268      else
3269	SYMBOL_VALUE (sym) = paramp->dfparam.location;
3270
3271      /* Get its type.  */
3272      SYMBOL_TYPE (sym) = hpread_type_lookup (paramp->dfparam.type, objfile);
3273      /* Add it to the symbol list.  */
3274      /* Note 1 (RT) At the moment, add_symbol_to_list() is also being
3275       * called on FPARAM symbols from the process_one_debug_symbol()
3276       * level... so parameters are getting added twice! (this shows
3277       * up in the symbol dump you get from "maint print symbols ...").
3278       * Note 2 (RT) I took out the processing of FPARAM from the
3279       * process_one_debug_symbol() level, so at the moment parameters are only
3280       * being processed here. This seems to have no ill effect.
3281       */
3282      /* Note 3 (pai/1997-08-11) I removed the add_symbol_to_list() which put
3283         each fparam on the local_symbols list from here.  Now we use the
3284         local_list to which fparams are added below, and set the param_symbols
3285         global to point to that at the end of this routine. */
3286      /* elz: I added this new list of symbols which is local to the function.
3287         this list is the one which is actually used to build the type for the
3288         function rather than the gloabal list pointed to by symlist.
3289         Using a global list to keep track of the parameters is wrong, because
3290         this function is called recursively if one parameter happend to be
3291         a function itself with more parameters in it. Adding parameters to the
3292         same global symbol list would not work!
3293         Actually it did work in case of cc compiled programs where you do
3294         not check the parameter lists of the arguments. */
3295      add_symbol_to_list (sym, &local_list);
3296
3297    }
3298
3299  /* If type was read in earlier, don't bother with modifying
3300     the type struct */
3301  if (!record_args)
3302    goto finish;
3303
3304  /* Note how many parameters we found.  */
3305  TYPE_NFIELDS (type) = nsyms;
3306  TYPE_FIELDS (type) = (struct field *)
3307    obstack_alloc (&objfile->objfile_obstack,
3308		   sizeof (struct field) * nsyms);
3309
3310  /* Find the symbols for the parameters and
3311     use them to fill parameter-type information into the function-type.
3312     The parameter symbols can be found in the local_list that we just put them on. */
3313  /* Note that we preserve the order of the parameters, so
3314     that in something like "enum {FOO, LAST_THING=FOO}" we print
3315     FOO, not LAST_THING.  */
3316
3317  /* get the parameters types from the local list not the global list
3318     so that the type can be correctly constructed for functions which
3319     have function as parameters */
3320  for (syms = local_list, n = 0; syms; syms = syms->next)
3321    {
3322      int j = 0;
3323      for (j = 0; j < syms->nsyms; j++, n++)
3324	{
3325	  struct symbol *xsym = syms->symbol[j];
3326	  TYPE_FIELD_NAME (type, n) = DEPRECATED_SYMBOL_NAME (xsym);
3327	  TYPE_FIELD_TYPE (type, n) = SYMBOL_TYPE (xsym);
3328	  TYPE_FIELD_ARTIFICIAL (type, n) = 0;
3329	  TYPE_FIELD_BITSIZE (type, n) = 0;
3330	  TYPE_FIELD_STATIC_KIND (type, n) = 0;
3331	}
3332    }
3333  /* Mark it as having been processed */
3334  TYPE_FLAGS (type) &= ~(TYPE_FLAG_INCOMPLETE);
3335
3336  /* Check whether we need to fix-up a class type with this function's type */
3337  if (fixup_class && (fixup_method == type))
3338    {
3339      fixup_class_method_type (fixup_class, fixup_method, objfile);
3340      fixup_class = NULL;
3341      fixup_method = NULL;
3342    }
3343
3344  /* Set the param list of this level of the context stack
3345     to our local list.  Do this only if this function was
3346     called for creating a new block, and not if it was called
3347     simply to get the function type. This prevents recursive
3348     invocations from trashing param_symbols. */
3349finish:
3350  if (newblock)
3351    param_symbols = local_list;
3352
3353  return type;
3354}
3355
3356
3357/* Read and internalize a native DOC function debug symbol.  */
3358/* This is almost identical to hpread_read_function_type(), except
3359 * for references to dn_bufp->ddocfunc instead of db_bufp->dfunc.
3360 * Since debug information for DOC functions is more likely to be
3361 * volatile, please leave it this way.
3362 */
3363static struct type *
3364hpread_read_doc_function_type (dnttpointer hp_type, union dnttentry *dn_bufp,
3365			       struct objfile *objfile, int newblock)
3366{
3367  struct pending *syms;
3368  struct pending *local_list = NULL;
3369  int nsyms = 0;
3370  struct type *type;
3371  dnttpointer param;
3372  union dnttentry *paramp;
3373  char *name;
3374  long n;
3375  struct symbol *sym;
3376  int record_args = 1;
3377
3378  /* See if we've already read in this type.  */
3379  type = hpread_alloc_type (hp_type, objfile);
3380  if (TYPE_CODE (type) == TYPE_CODE_FUNC)
3381    {
3382      record_args = 0;		/* already read in, don't modify type */
3383    }
3384  else
3385    {
3386      struct type *type1 = NULL;
3387      /* Nope, so read it in and store it away.  */
3388      if (dn_bufp->dblock.kind == DNTT_TYPE_DOC_FUNCTION ||
3389	  dn_bufp->dblock.kind == DNTT_TYPE_DOC_MEMFUNC)
3390	type1 = lookup_function_type (hpread_type_lookup (dn_bufp->ddocfunc.retval,
3391							  objfile));
3392      /* NOTE: cagney/2003-03-29: Oh, no not again.  TYPE1 is
3393         potentially left undefined here.  Assert it isn't and hope
3394         the assert never fails ...  */
3395      gdb_assert (type1 != NULL);
3396
3397      replace_type (type, type1);
3398
3399      /* Mark it -- in the middle of processing */
3400      TYPE_FLAGS (type) |= TYPE_FLAG_INCOMPLETE;
3401    }
3402
3403  /* Now examine each parameter noting its type, location, and a
3404     wealth of other information.  */
3405  if (dn_bufp->dblock.kind == DNTT_TYPE_DOC_FUNCTION ||
3406      dn_bufp->dblock.kind == DNTT_TYPE_DOC_MEMFUNC)
3407    param = dn_bufp->ddocfunc.firstparam;
3408  while (param.word && param.word != DNTTNIL)
3409    {
3410      paramp = hpread_get_lntt (param.dnttp.index, objfile);
3411      nsyms++;
3412      param = paramp->dfparam.nextparam;
3413
3414      /* Get the name.  */
3415      name = VT (objfile) + paramp->dfparam.name;
3416      sym = (struct symbol *) obstack_alloc (&objfile->objfile_obstack,
3417					     sizeof (struct symbol));
3418      (void) memset (sym, 0, sizeof (struct symbol));
3419      DEPRECATED_SYMBOL_NAME (sym) = name;
3420
3421      /* Figure out where it lives.  */
3422      if (paramp->dfparam.regparam)
3423	SYMBOL_CLASS (sym) = LOC_REGPARM;
3424      else if (paramp->dfparam.indirect)
3425	SYMBOL_CLASS (sym) = LOC_REF_ARG;
3426      else
3427	SYMBOL_CLASS (sym) = LOC_ARG;
3428      SYMBOL_DOMAIN (sym) = VAR_DOMAIN;
3429      if (paramp->dfparam.copyparam)
3430	{
3431	  SYMBOL_VALUE (sym) = paramp->dfparam.location;
3432	  SYMBOL_VALUE (sym)
3433	    += hpread_adjust_stack_address(CURRENT_FUNCTION_VALUE (objfile));
3434
3435	  /* This is likely a pass-by-invisible reference parameter,
3436	     Hack on the symbol class to make GDB happy.  */
3437	  /* ??rehrauer: This appears to be broken w/r/t to passing
3438	     C values of type float and struct.  Perhaps this ought
3439	     to be highighted as a special case, but for now, just
3440	     allowing these to be LOC_ARGs seems to work fine.
3441	   */
3442#if 0
3443	  SYMBOL_CLASS (sym) = LOC_REGPARM_ADDR;
3444#endif
3445	}
3446      else
3447	SYMBOL_VALUE (sym) = paramp->dfparam.location;
3448
3449      /* Get its type.  */
3450      SYMBOL_TYPE (sym) = hpread_type_lookup (paramp->dfparam.type, objfile);
3451      /* Add it to the symbol list.  */
3452      /* Note 1 (RT) At the moment, add_symbol_to_list() is also being
3453       * called on FPARAM symbols from the process_one_debug_symbol()
3454       * level... so parameters are getting added twice! (this shows
3455       * up in the symbol dump you get from "maint print symbols ...").
3456       * Note 2 (RT) I took out the processing of FPARAM from the
3457       * process_one_debug_symbol() level, so at the moment parameters are only
3458       * being processed here. This seems to have no ill effect.
3459       */
3460      /* Note 3 (pai/1997-08-11) I removed the add_symbol_to_list() which put
3461         each fparam on the local_symbols list from here.  Now we use the
3462         local_list to which fparams are added below, and set the param_symbols
3463         global to point to that at the end of this routine. */
3464
3465      /* elz: I added this new list of symbols which is local to the function.
3466         this list is the one which is actually used to build the type for the
3467         function rather than the gloabal list pointed to by symlist.
3468         Using a global list to keep track of the parameters is wrong, because
3469         this function is called recursively if one parameter happend to be
3470         a function itself with more parameters in it. Adding parameters to the
3471         same global symbol list would not work!
3472         Actually it did work in case of cc compiled programs where you do not check the
3473         parameter lists of the arguments.  */
3474      add_symbol_to_list (sym, &local_list);
3475    }
3476
3477  /* If type was read in earlier, don't bother with modifying
3478     the type struct */
3479  if (!record_args)
3480    goto finish;
3481
3482  /* Note how many parameters we found.  */
3483  TYPE_NFIELDS (type) = nsyms;
3484  TYPE_FIELDS (type) = (struct field *)
3485    obstack_alloc (&objfile->objfile_obstack,
3486		   sizeof (struct field) * nsyms);
3487
3488  /* Find the symbols for the parameters and
3489     use them to fill parameter-type information into the function-type.
3490     The parameter symbols can be found in the local_list that we just put them on. */
3491  /* Note that we preserve the order of the parameters, so
3492     that in something like "enum {FOO, LAST_THING=FOO}" we print
3493     FOO, not LAST_THING.  */
3494
3495  /* get the parameters types from the local list not the global list
3496     so that the type can be correctly constructed for functions which
3497     have function as parameters
3498   */
3499  for (syms = local_list, n = 0; syms; syms = syms->next)
3500    {
3501      int j = 0;
3502      for (j = 0; j < syms->nsyms; j++, n++)
3503	{
3504	  struct symbol *xsym = syms->symbol[j];
3505	  TYPE_FIELD_NAME (type, n) = DEPRECATED_SYMBOL_NAME (xsym);
3506	  TYPE_FIELD_TYPE (type, n) = SYMBOL_TYPE (xsym);
3507	  TYPE_FIELD_ARTIFICIAL (type, n) = 0;
3508	  TYPE_FIELD_BITSIZE (type, n) = 0;
3509	  TYPE_FIELD_STATIC_KIND (type, n) = 0;
3510	}
3511    }
3512
3513  /* Mark it as having been processed */
3514  TYPE_FLAGS (type) &= ~(TYPE_FLAG_INCOMPLETE);
3515
3516  /* Check whether we need to fix-up a class type with this function's type */
3517  if (fixup_class && (fixup_method == type))
3518    {
3519      fixup_class_method_type (fixup_class, fixup_method, objfile);
3520      fixup_class = NULL;
3521      fixup_method = NULL;
3522    }
3523
3524  /* Set the param list of this level of the context stack
3525     to our local list.  Do this only if this function was
3526     called for creating a new block, and not if it was called
3527     simply to get the function type. This prevents recursive
3528     invocations from trashing param_symbols. */
3529finish:
3530  if (newblock)
3531    param_symbols = local_list;
3532
3533  return type;
3534}
3535
3536
3537
3538/* A file-level variable which keeps track of the current-template
3539 * being processed. Set in hpread_read_struct_type() while processing
3540 * a template type. Referred to in hpread_get_nth_templ_arg().
3541 * Yes, this is a kludge, but it arises from the kludge that already
3542 * exists in symtab.h, namely the fact that they encode
3543 * "template argument n" with fundamental type FT_TEMPLATE_ARG and
3544 * bitlength n. This means that deep in processing fundamental types
3545 * I need to ask the question "what template am I in the middle of?".
3546 * The alternative to stuffing a global would be to pass an argument
3547 * down the chain of calls just for this purpose.
3548 *
3549 * There may be problems handling nested templates... tough.
3550 */
3551static struct type *current_template = NULL;
3552
3553/* Read in and internalize a structure definition.
3554 * This same routine is called for struct, union, and class types.
3555 * Also called for templates, since they build a very similar
3556 * type entry as for class types.
3557 */
3558
3559static struct type *
3560hpread_read_struct_type (dnttpointer hp_type, union dnttentry *dn_bufp,
3561			 struct objfile *objfile)
3562{
3563  /* The data members get linked together into a list of struct nextfield's */
3564  struct nextfield
3565    {
3566      struct nextfield *next;
3567      struct field field;
3568      unsigned char attributes;	/* store visibility and virtuality info */
3569#define ATTR_VIRTUAL 1
3570#define ATTR_PRIVATE 2
3571#define ATTR_PROTECT 3
3572    };
3573
3574
3575  /* The methods get linked together into a list of struct next_fn_field's */
3576  struct next_fn_field
3577    {
3578      struct next_fn_field *next;
3579      struct fn_fieldlist field;
3580      struct fn_field fn_field;
3581      int num_fn_fields;
3582    };
3583
3584  /* The template args get linked together into a list of struct next_template's */
3585  struct next_template
3586    {
3587      struct next_template *next;
3588      struct template_arg arg;
3589    };
3590
3591  /* The template instantiations get linked together into a list of these... */
3592  struct next_instantiation
3593    {
3594      struct next_instantiation *next;
3595      struct type *t;
3596    };
3597
3598  struct type *type;
3599  struct type *baseclass;
3600  struct type *memtype;
3601  struct nextfield *list = 0, *tmp_list = 0;
3602  struct next_fn_field *fn_list = 0;
3603  struct next_fn_field *fn_p;
3604  struct next_template *t_new, *t_list = 0;
3605  struct nextfield *new;
3606  struct next_fn_field *fn_new;
3607  struct next_instantiation *i_new, *i_list = 0;
3608  int n, nfields = 0, n_fn_fields = 0, n_fn_fields_total = 0;
3609  int n_base_classes = 0, n_templ_args = 0;
3610  int ninstantiations = 0;
3611  dnttpointer field, fn_field, parent;
3612  union dnttentry *fieldp, *fn_fieldp, *parentp;
3613  int i;
3614  int static_member = 0;
3615  int const_member = 0;
3616  int volatile_member = 0;
3617  unsigned long vtbl_offset;
3618  int need_bitvectors = 0;
3619  char *method_name = NULL;
3620  char *method_alias = NULL;
3621
3622
3623  /* Is it something we've already dealt with?  */
3624  type = hpread_alloc_type (hp_type, objfile);
3625  if ((TYPE_CODE (type) == TYPE_CODE_STRUCT) ||
3626      (TYPE_CODE (type) == TYPE_CODE_UNION) ||
3627      (TYPE_CODE (type) == TYPE_CODE_CLASS) ||
3628      (TYPE_CODE (type) == TYPE_CODE_TEMPLATE))
3629    return type;
3630
3631  /* Get the basic type correct.  */
3632  if (dn_bufp->dblock.kind == DNTT_TYPE_STRUCT)
3633    {
3634      TYPE_CODE (type) = TYPE_CODE_STRUCT;
3635      TYPE_LENGTH (type) = dn_bufp->dstruct.bitlength / 8;
3636    }
3637  else if (dn_bufp->dblock.kind == DNTT_TYPE_UNION)
3638    {
3639      TYPE_CODE (type) = TYPE_CODE_UNION;
3640      TYPE_LENGTH (type) = dn_bufp->dunion.bitlength / 8;
3641    }
3642  else if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS)
3643    {
3644      TYPE_CODE (type) = TYPE_CODE_CLASS;
3645      TYPE_LENGTH (type) = dn_bufp->dclass.bitlength / 8;
3646
3647      /* Overrides the TYPE_CPLUS_SPECIFIC(type) with allocated memory
3648       * rather than &cplus_struct_default.
3649       */
3650      allocate_cplus_struct_type (type);
3651
3652      /* Fill in declared-type.
3653       * (The C++ compiler will emit TYPE_CODE_CLASS
3654       * for all 3 of "class", "struct"
3655       * "union", and we have to look at the "class_decl" field if we
3656       * want to know how it was really declared)
3657       */
3658      /* (0==class, 1==union, 2==struct) */
3659      TYPE_DECLARED_TYPE (type) = dn_bufp->dclass.class_decl;
3660    }
3661  else if (dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE)
3662    {
3663      /* Get the basic type correct.  */
3664      TYPE_CODE (type) = TYPE_CODE_TEMPLATE;
3665      allocate_cplus_struct_type (type);
3666      TYPE_DECLARED_TYPE (type) = DECLARED_TYPE_TEMPLATE;
3667    }
3668  else
3669    return type;
3670
3671
3672  TYPE_FLAGS (type) &= ~TYPE_FLAG_STUB;
3673
3674  /* For classes, read the parent list.
3675   * Question (RT): Do we need to do this for templates also?
3676   */
3677  if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS)
3678    {
3679
3680      /* First read the parent-list (classes from which we derive fields) */
3681      parent = dn_bufp->dclass.parentlist;
3682      while (parent.word && parent.word != DNTTNIL)
3683	{
3684	  parentp = hpread_get_lntt (parent.dnttp.index, objfile);
3685
3686	  /* "parentp" should point to a DNTT_TYPE_INHERITANCE record */
3687
3688	  /* Get space to record the next field/data-member. */
3689	  new = (struct nextfield *) alloca (sizeof (struct nextfield));
3690	  memset (new, 0, sizeof (struct nextfield));
3691	  new->next = list;
3692	  list = new;
3693
3694	  FIELD_BITSIZE (list->field) = 0;
3695	  FIELD_STATIC_KIND (list->field) = 0;
3696
3697	  /* The "classname" field is actually a DNTT pointer to the base class */
3698	  baseclass = hpread_type_lookup (parentp->dinheritance.classname,
3699					  objfile);
3700	  FIELD_TYPE (list->field) = baseclass;
3701
3702	  list->field.name = type_name_no_tag (FIELD_TYPE (list->field));
3703
3704	  list->attributes = 0;
3705
3706	  /* Check for virtuality of base, and set the
3707	   * offset of the base subobject within the object.
3708	   * (Offset set to -1 for virtual bases (for now).)
3709	   */
3710	  if (parentp->dinheritance.Virtual)
3711	    {
3712	      B_SET (&(list->attributes), ATTR_VIRTUAL);
3713	      parentp->dinheritance.offset = -1;
3714	    }
3715	  else
3716	    FIELD_BITPOS (list->field) = parentp->dinheritance.offset;
3717
3718	  /* Check visibility */
3719	  switch (parentp->dinheritance.visibility)
3720	    {
3721	    case 1:
3722	      B_SET (&(list->attributes), ATTR_PROTECT);
3723	      break;
3724	    case 2:
3725	      B_SET (&(list->attributes), ATTR_PRIVATE);
3726	      break;
3727	    }
3728
3729	  n_base_classes++;
3730	  nfields++;
3731
3732	  parent = parentp->dinheritance.next;
3733	}
3734    }
3735
3736  /* For templates, read the template argument list.
3737   * This must be done before processing the member list, because
3738   * the member list may refer back to this. E.g.:
3739   *   template <class T1, class T2> class q2 {
3740   *     public:
3741   *     T1 a;
3742   *     T2 b;
3743   *   };
3744   * We need to read the argument list "T1", "T2" first.
3745   */
3746  if (dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE)
3747    {
3748      /* Kludge alert: This stuffs a global "current_template" which
3749       * is referred to by hpread_get_nth_templ_arg(). The global
3750       * is cleared at the end of this routine.
3751       */
3752      current_template = type;
3753
3754      /* Read in the argument list */
3755      field = dn_bufp->dtemplate.arglist;
3756      while (field.word && field.word != DNTTNIL)
3757	{
3758	  /* Get this template argument */
3759	  fieldp = hpread_get_lntt (field.dnttp.index, objfile);
3760	  if (fieldp->dblock.kind != DNTT_TYPE_TEMPLATE_ARG)
3761	    {
3762	      warning ("Invalid debug info: Template argument entry is of wrong kind");
3763	      break;
3764	    }
3765	  /* Bump the count */
3766	  n_templ_args++;
3767	  /* Allocate and fill in a struct next_template */
3768	  t_new = (struct next_template *) alloca (sizeof (struct next_template));
3769	  memset (t_new, 0, sizeof (struct next_template));
3770	  t_new->next = t_list;
3771	  t_list = t_new;
3772	  t_list->arg.name = VT (objfile) + fieldp->dtempl_arg.name;
3773	  t_list->arg.type = hpread_read_templ_arg_type (field, fieldp,
3774						 objfile, t_list->arg.name);
3775	  /* Walk to the next template argument */
3776	  field = fieldp->dtempl_arg.nextarg;
3777	}
3778    }
3779
3780  TYPE_NTEMPLATE_ARGS (type) = n_templ_args;
3781
3782  if (n_templ_args > 0)
3783    TYPE_TEMPLATE_ARGS (type) = (struct template_arg *)
3784      obstack_alloc (&objfile->objfile_obstack, sizeof (struct template_arg) * n_templ_args);
3785  for (n = n_templ_args; t_list; t_list = t_list->next)
3786    {
3787      n -= 1;
3788      TYPE_TEMPLATE_ARG (type, n) = t_list->arg;
3789    }
3790
3791  /* Next read in and internalize all the fields/members.  */
3792  if (dn_bufp->dblock.kind == DNTT_TYPE_STRUCT)
3793    field = dn_bufp->dstruct.firstfield;
3794  else if (dn_bufp->dblock.kind == DNTT_TYPE_UNION)
3795    field = dn_bufp->dunion.firstfield;
3796  else if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS)
3797    field = dn_bufp->dclass.memberlist;
3798  else if (dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE)
3799    field = dn_bufp->dtemplate.memberlist;
3800  else
3801    field.word = DNTTNIL;
3802
3803  while (field.word && field.word != DNTTNIL)
3804    {
3805      fieldp = hpread_get_lntt (field.dnttp.index, objfile);
3806
3807      /* At this point "fieldp" may point to either a DNTT_TYPE_FIELD
3808       * or a DNTT_TYPE_GENFIELD record.
3809       */
3810      vtbl_offset = 0;
3811      static_member = 0;
3812      const_member = 0;
3813      volatile_member = 0;
3814
3815      if (fieldp->dblock.kind == DNTT_TYPE_GENFIELD)
3816	{
3817
3818	  /* The type will be GENFIELD if the field is a method or
3819	   * a static member (or some other cases -- see below)
3820	   */
3821
3822	  /* Follow a link to get to the record for the field. */
3823	  fn_field = fieldp->dgenfield.field;
3824	  fn_fieldp = hpread_get_lntt (fn_field.dnttp.index, objfile);
3825
3826	  /* Virtual funcs are indicated by a VFUNC which points to the
3827	   * real entry
3828	   */
3829	  if (fn_fieldp->dblock.kind == DNTT_TYPE_VFUNC)
3830	    {
3831	      vtbl_offset = fn_fieldp->dvfunc.vtbl_offset;
3832	      fn_field = fn_fieldp->dvfunc.funcptr;
3833	      fn_fieldp = hpread_get_lntt (fn_field.dnttp.index, objfile);
3834	    }
3835
3836	  /* A function's entry may be preceded by a modifier which
3837	   * labels it static/constant/volatile.
3838	   */
3839	  if (fn_fieldp->dblock.kind == DNTT_TYPE_MODIFIER)
3840	    {
3841	      static_member = fn_fieldp->dmodifier.m_static;
3842	      const_member = fn_fieldp->dmodifier.m_const;
3843	      volatile_member = fn_fieldp->dmodifier.m_volatile;
3844	      fn_field = fn_fieldp->dmodifier.type;
3845	      fn_fieldp = hpread_get_lntt (fn_field.dnttp.index, objfile);
3846	    }
3847
3848	  /* Check whether we have a method */
3849	  if ((fn_fieldp->dblock.kind == DNTT_TYPE_MEMFUNC) ||
3850	      (fn_fieldp->dblock.kind == DNTT_TYPE_FUNCTION) ||
3851	      (fn_fieldp->dblock.kind == DNTT_TYPE_DOC_MEMFUNC) ||
3852	      (fn_fieldp->dblock.kind == DNTT_TYPE_DOC_FUNCTION))
3853	    {
3854	      /* Method found */
3855
3856	      short ix = 0;
3857
3858	      /* Look up function type of method */
3859	      memtype = hpread_type_lookup (fn_field, objfile);
3860
3861	      /* Methods can be seen before classes in the SOM records.
3862	         If we are processing this class because it's a parameter of a
3863	         method, at this point the method's type is actually incomplete;
3864	         we'll have to fix it up later; mark the class for this. */
3865
3866	      if (TYPE_INCOMPLETE (memtype))
3867		{
3868		  TYPE_FLAGS (type) |= TYPE_FLAG_INCOMPLETE;
3869		  if (fixup_class)
3870		    warning ("Two classes to fix up for method??  Type information may be incorrect for some classes.");
3871		  if (fixup_method)
3872		    warning ("Two methods to be fixed up at once?? Type information may be incorrect for some classes.");
3873		  fixup_class = type;	/* remember this class has to be fixed up */
3874		  fixup_method = memtype;	/* remember the method type to be used in fixup */
3875		}
3876
3877	      /* HP aCC generates operator names without the "operator" keyword, and
3878	         generates null strings as names for operators that are
3879	         user-defined type conversions to basic types (e.g. operator int ()).
3880	         So try to reconstruct name as best as possible. */
3881
3882	      method_name = (char *) (VT (objfile) + fn_fieldp->dfunc.name);
3883	      method_alias = (char *) (VT (objfile) + fn_fieldp->dfunc.alias);
3884
3885	      if (!method_name ||	/* no name */
3886		  !*method_name ||	/* or null name */
3887		  cplus_mangle_opname (method_name, DMGL_ANSI))		/* or name is an operator like "<" */
3888		{
3889		  char *tmp_name = cplus_demangle (method_alias, DMGL_ANSI);
3890		  char *op_string = strstr (tmp_name, "operator");
3891		  method_name = xmalloc (strlen (op_string) + 1);	/* don't overwrite VT! */
3892		  strcpy (method_name, op_string);
3893		}
3894
3895	      /* First check if a method of the same name has already been seen. */
3896	      fn_p = fn_list;
3897	      while (fn_p)
3898		{
3899		  if (DEPRECATED_STREQ (fn_p->field.name, method_name))
3900		    break;
3901		  fn_p = fn_p->next;
3902		}
3903
3904	      /* If no such method was found, allocate a new entry in the list */
3905	      if (!fn_p)
3906		{
3907		  /* Get space to record this member function */
3908		  /* Note: alloca used; this will disappear on routine exit */
3909		  fn_new = (struct next_fn_field *) alloca (sizeof (struct next_fn_field));
3910		  memset (fn_new, 0, sizeof (struct next_fn_field));
3911		  fn_new->next = fn_list;
3912		  fn_list = fn_new;
3913
3914		  /* Fill in the fields of the struct nextfield */
3915
3916		  /* Record the (unmangled) method name */
3917		  fn_list->field.name = method_name;
3918		  /* Initial space for overloaded methods */
3919		  /* Note: xmalloc is used; this will persist after this routine exits */
3920		  fn_list->field.fn_fields = (struct fn_field *) xmalloc (5 * (sizeof (struct fn_field)));
3921		  fn_list->field.length = 1;	/* Init # of overloaded instances */
3922		  fn_list->num_fn_fields = 5;	/* # of entries for which space allocated */
3923		  fn_p = fn_list;
3924		  ix = 0;	/* array index for fn_field */
3925		  /* Bump the total count of the distinctly named methods */
3926		  n_fn_fields++;
3927		}
3928	      else
3929		/* Another overloaded instance of an already seen method name */
3930		{
3931		  if (++(fn_p->field.length) > fn_p->num_fn_fields)
3932		    {
3933		      /* Increase space allocated for overloaded instances */
3934		      fn_p->field.fn_fields
3935			= (struct fn_field *) xrealloc (fn_p->field.fn_fields,
3936		      (fn_p->num_fn_fields + 5) * sizeof (struct fn_field));
3937		      fn_p->num_fn_fields += 5;
3938		    }
3939		  ix = fn_p->field.length - 1;	/* array index for fn_field */
3940		}
3941
3942	      /* "physname" is intended to be the name of this overloaded instance. */
3943	      if ((fn_fieldp->dfunc.language == HP_LANGUAGE_CPLUSPLUS) &&
3944		  method_alias &&
3945		  *method_alias)	/* not a null string */
3946		fn_p->field.fn_fields[ix].physname = method_alias;
3947	      else
3948		fn_p->field.fn_fields[ix].physname = method_name;
3949	      /* What's expected here is the function type */
3950	      /* But mark it as NULL if the method was incompletely processed
3951	         We'll fix this up later when the method is fully processed */
3952	      if (TYPE_INCOMPLETE (memtype))
3953		fn_p->field.fn_fields[ix].type = NULL;
3954	      else
3955		fn_p->field.fn_fields[ix].type = memtype;
3956
3957	      /* For virtual functions, fill in the voffset field with the
3958	       * virtual table offset. (This is just copied over from the
3959	       * SOM record; not sure if it is what GDB expects here...).
3960	       * But if the function is a static method, set it to 1.
3961	       *
3962	       * Note that we have to add 1 because 1 indicates a static
3963	       * method, and 0 indicates a non-static, non-virtual method */
3964
3965	      if (static_member)
3966		fn_p->field.fn_fields[ix].voffset = VOFFSET_STATIC;
3967	      else
3968		fn_p->field.fn_fields[ix].voffset = vtbl_offset ? vtbl_offset + 1 : 0;
3969
3970	      /* Also fill in the fcontext field with the current
3971	       * class. (The latter isn't quite right: should be the baseclass
3972	       * that defines the virtual function... Note we do have
3973	       * a variable "baseclass" that we could stuff into the fcontext
3974	       * field, but "baseclass" isn't necessarily right either,
3975	       * since the virtual function could have been defined more
3976	       * than one level up).
3977	       */
3978
3979	      if (vtbl_offset != 0)
3980		fn_p->field.fn_fields[ix].fcontext = type;
3981	      else
3982		fn_p->field.fn_fields[ix].fcontext = NULL;
3983
3984	      /* Other random fields pertaining to this method */
3985	      fn_p->field.fn_fields[ix].is_const = const_member;
3986	      fn_p->field.fn_fields[ix].is_volatile = volatile_member;	/* ?? */
3987	      switch (fieldp->dgenfield.visibility)
3988		{
3989		case 1:
3990		  fn_p->field.fn_fields[ix].is_protected = 1;
3991		  fn_p->field.fn_fields[ix].is_private = 0;
3992		  break;
3993		case 2:
3994		  fn_p->field.fn_fields[ix].is_protected = 0;
3995		  fn_p->field.fn_fields[ix].is_private = 1;
3996		  break;
3997		default:	/* public */
3998		  fn_p->field.fn_fields[ix].is_protected = 0;
3999		  fn_p->field.fn_fields[ix].is_private = 0;
4000		}
4001	      fn_p->field.fn_fields[ix].is_stub = 0;
4002
4003	      /* HP aCC emits both MEMFUNC and FUNCTION entries for a method;
4004	         if the class points to the FUNCTION, there is usually separate
4005	         code for the method; but if we have a MEMFUNC, the method has
4006	         been inlined (and there is usually no FUNCTION entry)
4007	         FIXME Not sure if this test is accurate. pai/1997-08-22 */
4008	      if ((fn_fieldp->dblock.kind == DNTT_TYPE_MEMFUNC) ||
4009		  (fn_fieldp->dblock.kind == DNTT_TYPE_DOC_MEMFUNC))
4010		fn_p->field.fn_fields[ix].is_inlined = 1;
4011	      else
4012		fn_p->field.fn_fields[ix].is_inlined = 0;
4013
4014	      fn_p->field.fn_fields[ix].dummy = 0;
4015
4016	      /* Bump the total count of the member functions */
4017	      n_fn_fields_total++;
4018
4019	    }
4020	  else if (fn_fieldp->dblock.kind == DNTT_TYPE_SVAR)
4021	    {
4022	      /* This case is for static data members of classes */
4023
4024	      /* pai:: FIXME -- check that "staticmem" bit is set */
4025
4026	      /* Get space to record this static member */
4027	      new = (struct nextfield *) alloca (sizeof (struct nextfield));
4028	      memset (new, 0, sizeof (struct nextfield));
4029	      new->next = list;
4030	      list = new;
4031
4032	      list->field.name = VT (objfile) + fn_fieldp->dsvar.name;
4033	      SET_FIELD_PHYSNAME (list->field, 0);	/* initialize to empty */
4034	      memtype = hpread_type_lookup (fn_fieldp->dsvar.type, objfile);
4035
4036	      FIELD_TYPE (list->field) = memtype;
4037	      list->attributes = 0;
4038	      switch (fieldp->dgenfield.visibility)
4039		{
4040		case 1:
4041		  B_SET (&(list->attributes), ATTR_PROTECT);
4042		  break;
4043		case 2:
4044		  B_SET (&(list->attributes), ATTR_PRIVATE);
4045		  break;
4046		}
4047	      nfields++;
4048	    }
4049
4050	  else if (fn_fieldp->dblock.kind == DNTT_TYPE_FIELD)
4051	    {
4052	      /* FIELDs follow GENFIELDs for fields of anonymous unions.
4053	         Code below is replicated from the case for FIELDs further
4054	         below, except that fieldp is replaced by fn_fieldp */
4055	      if (!fn_fieldp->dfield.a_union)
4056		warning ("Debug info inconsistent: FIELD of anonymous union doesn't have a_union bit set");
4057	      /* Get space to record the next field/data-member. */
4058	      new = (struct nextfield *) alloca (sizeof (struct nextfield));
4059	      memset (new, 0, sizeof (struct nextfield));
4060	      new->next = list;
4061	      list = new;
4062
4063	      list->field.name = VT (objfile) + fn_fieldp->dfield.name;
4064	      FIELD_BITPOS (list->field) = fn_fieldp->dfield.bitoffset;
4065	      if (fn_fieldp->dfield.bitlength % 8)
4066		list->field.bitsize = fn_fieldp->dfield.bitlength;
4067	      else
4068		list->field.bitsize = 0;
4069
4070	      memtype = hpread_type_lookup (fn_fieldp->dfield.type, objfile);
4071	      list->field.type = memtype;
4072	      list->attributes = 0;
4073	      switch (fn_fieldp->dfield.visibility)
4074		{
4075		case 1:
4076		  B_SET (&(list->attributes), ATTR_PROTECT);
4077		  break;
4078		case 2:
4079		  B_SET (&(list->attributes), ATTR_PRIVATE);
4080		  break;
4081		}
4082	      nfields++;
4083	    }
4084	  else if (fn_fieldp->dblock.kind == DNTT_TYPE_SVAR)
4085	    {
4086	      /* Field of anonymous union; union is not inside a class */
4087	      if (!fn_fieldp->dsvar.a_union)
4088		warning ("Debug info inconsistent: SVAR field in anonymous union doesn't have a_union bit set");
4089	      /* Get space to record the next field/data-member. */
4090	      new = (struct nextfield *) alloca (sizeof (struct nextfield));
4091	      memset (new, 0, sizeof (struct nextfield));
4092	      new->next = list;
4093	      list = new;
4094
4095	      list->field.name = VT (objfile) + fn_fieldp->dsvar.name;
4096	      FIELD_BITPOS (list->field) = 0;	/* FIXME is this always true? */
4097	      FIELD_BITSIZE (list->field) = 0;	/* use length from type */
4098	      FIELD_STATIC_KIND (list->field) = 0;
4099	      memtype = hpread_type_lookup (fn_fieldp->dsvar.type, objfile);
4100	      list->field.type = memtype;
4101	      list->attributes = 0;
4102	      /* No info to set visibility -- always public */
4103	      nfields++;
4104	    }
4105	  else if (fn_fieldp->dblock.kind == DNTT_TYPE_DVAR)
4106	    {
4107	      /* Field of anonymous union; union is not inside a class */
4108	      if (!fn_fieldp->ddvar.a_union)
4109		warning ("Debug info inconsistent: DVAR field in anonymous union doesn't have a_union bit set");
4110	      /* Get space to record the next field/data-member. */
4111	      new = (struct nextfield *) alloca (sizeof (struct nextfield));
4112	      memset (new, 0, sizeof (struct nextfield));
4113	      new->next = list;
4114	      list = new;
4115
4116	      list->field.name = VT (objfile) + fn_fieldp->ddvar.name;
4117	      FIELD_BITPOS (list->field) = 0;	/* FIXME is this always true? */
4118	      FIELD_BITSIZE (list->field) = 0;	/* use length from type */
4119	      FIELD_STATIC_KIND (list->field) = 0;
4120	      memtype = hpread_type_lookup (fn_fieldp->ddvar.type, objfile);
4121	      list->field.type = memtype;
4122	      list->attributes = 0;
4123	      /* No info to set visibility -- always public */
4124	      nfields++;
4125	    }
4126	  else
4127	    {			/* Not a method, nor a static data member, nor an anon union field */
4128
4129	      /* This case is for miscellaneous type entries (local enums,
4130	         local function templates, etc.) that can be present
4131	         inside a class. */
4132
4133	      /* Enums -- will be handled by other code that takes care
4134	         of DNTT_TYPE_ENUM; here we see only DNTT_TYPE_MEMENUM so
4135	         it's not clear we could have handled them here at all. */
4136	      /* FUNC_TEMPLATE: is handled by other code (?). */
4137	      /* MEMACCESS: modified access for inherited member. Not
4138	         sure what to do with this, ignoriing it at present. */
4139
4140	      /* What other entries can appear following a GENFIELD which
4141	         we do not handle above?  (MODIFIER, VFUNC handled above.) */
4142
4143	      if ((fn_fieldp->dblock.kind != DNTT_TYPE_MEMACCESS) &&
4144		  (fn_fieldp->dblock.kind != DNTT_TYPE_MEMENUM) &&
4145		  (fn_fieldp->dblock.kind != DNTT_TYPE_FUNC_TEMPLATE))
4146		warning ("Internal error: Unexpected debug record kind %d found following DNTT_GENFIELD",
4147			 fn_fieldp->dblock.kind);
4148	    }
4149	  /* walk to the next FIELD or GENFIELD */
4150	  field = fieldp->dgenfield.nextfield;
4151
4152	}
4153      else if (fieldp->dblock.kind == DNTT_TYPE_FIELD)
4154	{
4155
4156	  /* Ordinary structure/union/class field */
4157	  struct type *anon_union_type;
4158
4159	  /* Get space to record the next field/data-member. */
4160	  new = (struct nextfield *) alloca (sizeof (struct nextfield));
4161	  memset (new, 0, sizeof (struct nextfield));
4162	  new->next = list;
4163	  list = new;
4164
4165	  list->field.name = VT (objfile) + fieldp->dfield.name;
4166
4167
4168	  /* A FIELD by itself (without a GENFIELD) can also be a static
4169	     member.  Mark it as static with a physname of NULL.
4170	     fix_static_member_physnames will assign the physname later. */
4171	  if (fieldp->dfield.staticmem)
4172	    {
4173	      SET_FIELD_PHYSNAME (list->field, NULL);
4174	      FIELD_BITPOS (list->field) = 0;
4175	      FIELD_BITSIZE (list->field) = 0;
4176	    }
4177	  else
4178	    /* Non-static data member */
4179	    {
4180	      FIELD_STATIC_KIND (list->field) = 0;
4181	      FIELD_BITPOS (list->field) = fieldp->dfield.bitoffset;
4182	      if (fieldp->dfield.bitlength % 8)
4183		FIELD_BITSIZE (list->field) = fieldp->dfield.bitlength;
4184	      else
4185		FIELD_BITSIZE (list->field) = 0;
4186	    }
4187
4188	  memtype = hpread_type_lookup (fieldp->dfield.type, objfile);
4189	  FIELD_TYPE (list->field) = memtype;
4190	  list->attributes = 0;
4191	  switch (fieldp->dfield.visibility)
4192	    {
4193	    case 1:
4194	      B_SET (&(list->attributes), ATTR_PROTECT);
4195	      break;
4196	    case 2:
4197	      B_SET (&(list->attributes), ATTR_PRIVATE);
4198	      break;
4199	    }
4200	  nfields++;
4201
4202
4203	  /* Note 1: First, we have to check if the current field is an anonymous
4204	     union. If it is, then *its* fields are threaded along in the
4205	     nextfield chain. :-( This was supposed to help debuggers, but is
4206	     really just a nuisance since we deal with anonymous unions anyway by
4207	     checking that the name is null.  So anyway, we skip over the fields
4208	     of the anonymous union. pai/1997-08-22 */
4209	  /* Note 2: In addition, the bitoffsets for the fields of the anon union
4210	     are relative to the enclosing struct, *NOT* relative to the anon
4211	     union!  This is an even bigger nuisance -- we have to go in and munge
4212	     the anon union's type information appropriately. pai/1997-08-22 */
4213
4214	  /* Both tasks noted above are done by a separate function.  This takes us
4215	     to the next FIELD or GENFIELD, skipping anon unions, and recursively
4216	     processing intermediate types. */
4217	  field = hpread_get_next_skip_over_anon_unions (1, field, &fieldp, objfile);
4218
4219	}
4220      else
4221	{
4222	  /* neither field nor genfield ?? is this possible?? */
4223	  /* pai:: FIXME walk to the next -- how? */
4224	  warning ("Internal error: unexpected DNTT kind %d encountered as field of struct",
4225		   fieldp->dblock.kind);
4226	  warning ("Skipping remaining fields of struct");
4227	  break;		/* get out of loop of fields */
4228	}
4229    }
4230
4231  /* If it's a template, read in the instantiation list */
4232  if (dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE)
4233    {
4234      ninstantiations = 0;
4235      field = dn_bufp->dtemplate.expansions;
4236      while (field.word && field.word != DNTTNIL)
4237	{
4238	  fieldp = hpread_get_lntt (field.dnttp.index, objfile);
4239
4240	  /* The expansions or nextexp should point to a tagdef */
4241	  if (fieldp->dblock.kind != DNTT_TYPE_TAGDEF)
4242	    break;
4243
4244	  i_new = (struct next_instantiation *) alloca (sizeof (struct next_instantiation));
4245	  memset (i_new, 0, sizeof (struct next_instantiation));
4246	  i_new->next = i_list;
4247	  i_list = i_new;
4248	  i_list->t = hpread_type_lookup (field, objfile);
4249	  ninstantiations++;
4250
4251	  /* And the "type" field of that should point to a class */
4252	  field = fieldp->dtag.type;
4253	  fieldp = hpread_get_lntt (field.dnttp.index, objfile);
4254	  if (fieldp->dblock.kind != DNTT_TYPE_CLASS)
4255	    break;
4256
4257	  /* Get the next expansion */
4258	  field = fieldp->dclass.nextexp;
4259	}
4260    }
4261  TYPE_NINSTANTIATIONS (type) = ninstantiations;
4262  if (ninstantiations > 0)
4263    TYPE_INSTANTIATIONS (type) = (struct type **)
4264      obstack_alloc (&objfile->objfile_obstack, sizeof (struct type *) * ninstantiations);
4265  for (n = ninstantiations; i_list; i_list = i_list->next)
4266    {
4267      n -= 1;
4268      TYPE_INSTANTIATION (type, n) = i_list->t;
4269    }
4270
4271
4272  /* Copy the field-list to GDB's symbol table */
4273  TYPE_NFIELDS (type) = nfields;
4274  TYPE_N_BASECLASSES (type) = n_base_classes;
4275  TYPE_FIELDS (type) = (struct field *)
4276    obstack_alloc (&objfile->objfile_obstack, sizeof (struct field) * nfields);
4277  /* Copy the saved-up fields into the field vector.  */
4278  for (n = nfields, tmp_list = list; tmp_list; tmp_list = tmp_list->next)
4279    {
4280      n -= 1;
4281      TYPE_FIELD (type, n) = tmp_list->field;
4282    }
4283
4284  /* Copy the "function-field-list" (i.e., the list of member
4285   * functions in the class) to GDB's symbol table
4286   */
4287  TYPE_NFN_FIELDS (type) = n_fn_fields;
4288  TYPE_NFN_FIELDS_TOTAL (type) = n_fn_fields_total;
4289  TYPE_FN_FIELDLISTS (type) = (struct fn_fieldlist *)
4290    obstack_alloc (&objfile->objfile_obstack, sizeof (struct fn_fieldlist) * n_fn_fields);
4291  for (n = n_fn_fields; fn_list; fn_list = fn_list->next)
4292    {
4293      n -= 1;
4294      TYPE_FN_FIELDLIST (type, n) = fn_list->field;
4295    }
4296
4297  /* pai:: FIXME -- perhaps each bitvector should be created individually */
4298  for (n = nfields, tmp_list = list; tmp_list; tmp_list = tmp_list->next)
4299    {
4300      n -= 1;
4301      if (tmp_list->attributes)
4302	{
4303	  need_bitvectors = 1;
4304	  break;
4305	}
4306    }
4307
4308  if (need_bitvectors)
4309    {
4310      /* pai:: this step probably redundant */
4311      ALLOCATE_CPLUS_STRUCT_TYPE (type);
4312
4313      TYPE_FIELD_VIRTUAL_BITS (type) =
4314	(B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
4315      B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type), nfields);
4316
4317      TYPE_FIELD_PRIVATE_BITS (type) =
4318	(B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
4319      B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type), nfields);
4320
4321      TYPE_FIELD_PROTECTED_BITS (type) =
4322	(B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
4323      B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type), nfields);
4324
4325      /* this field vector isn't actually used with HP aCC */
4326      TYPE_FIELD_IGNORE_BITS (type) =
4327	(B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
4328      B_CLRALL (TYPE_FIELD_IGNORE_BITS (type), nfields);
4329
4330      while (nfields-- > 0)
4331	{
4332	  if (B_TST (&(list->attributes), ATTR_VIRTUAL))
4333	    SET_TYPE_FIELD_VIRTUAL (type, nfields);
4334	  if (B_TST (&(list->attributes), ATTR_PRIVATE))
4335	    SET_TYPE_FIELD_PRIVATE (type, nfields);
4336	  if (B_TST (&(list->attributes), ATTR_PROTECT))
4337	    SET_TYPE_FIELD_PROTECTED (type, nfields);
4338
4339	  list = list->next;
4340	}
4341    }
4342  else
4343    {
4344      TYPE_FIELD_VIRTUAL_BITS (type) = NULL;
4345      TYPE_FIELD_PROTECTED_BITS (type) = NULL;
4346      TYPE_FIELD_PRIVATE_BITS (type) = NULL;
4347    }
4348
4349  if (has_vtable (type))
4350    {
4351      /* Allocate space for class runtime information */
4352      TYPE_RUNTIME_PTR (type) = (struct runtime_info *) xmalloc (sizeof (struct runtime_info));
4353      /* Set flag for vtable */
4354      TYPE_VTABLE (type) = 1;
4355      /* The first non-virtual base class with a vtable. */
4356      TYPE_PRIMARY_BASE (type) = primary_base_class (type);
4357      /* The virtual base list. */
4358      TYPE_VIRTUAL_BASE_LIST (type) = virtual_base_list (type);
4359    }
4360  else
4361    TYPE_RUNTIME_PTR (type) = NULL;
4362
4363  /* If this is a local type (C++ - declared inside a function), record file name & line # */
4364  if (hpread_get_scope_depth (dn_bufp, objfile, 1 /* no need for real depth */ ))
4365    {
4366      TYPE_LOCALTYPE_PTR (type) = (struct local_type_info *) xmalloc (sizeof (struct local_type_info));
4367      TYPE_LOCALTYPE_FILE (type) = (char *) xmalloc (strlen (current_subfile->name) + 1);
4368      strcpy (TYPE_LOCALTYPE_FILE (type), current_subfile->name);
4369      if (current_subfile->line_vector && (current_subfile->line_vector->nitems > 0))
4370	TYPE_LOCALTYPE_LINE (type) = current_subfile->line_vector->item[current_subfile->line_vector->nitems - 1].line;
4371      else
4372	TYPE_LOCALTYPE_LINE (type) = 0;
4373    }
4374  else
4375    TYPE_LOCALTYPE_PTR (type) = NULL;
4376
4377  /* Clear the global saying what template we are in the middle of processing */
4378  current_template = NULL;
4379
4380  return type;
4381}
4382
4383/* Adjust the physnames for each static member of a struct
4384   or class type to be something like "A::x"; then various
4385   other pieces of code that do a lookup_symbol on the phyname
4386   work correctly.
4387   TYPE is a pointer to the struct/class type
4388   NAME is a char * (string) which is the class/struct name
4389   Void return */
4390
4391static void
4392fix_static_member_physnames (struct type *type, char *class_name,
4393			     struct objfile *objfile)
4394{
4395  int i;
4396
4397  /* We fix the member names only for classes or structs */
4398  if (TYPE_CODE (type) != TYPE_CODE_STRUCT)
4399    return;
4400
4401  for (i = 0; i < TYPE_NFIELDS (type); i++)
4402    if (TYPE_FIELD_STATIC (type, i))
4403      {
4404	if (TYPE_FIELD_STATIC_PHYSNAME (type, i))
4405	  return;		/* physnames are already set */
4406
4407	SET_FIELD_PHYSNAME (TYPE_FIELDS (type)[i],
4408			    obstack_alloc (&objfile->objfile_obstack,
4409	     strlen (class_name) + strlen (TYPE_FIELD_NAME (type, i)) + 3));
4410	strcpy (TYPE_FIELD_STATIC_PHYSNAME (type, i), class_name);
4411	strcat (TYPE_FIELD_STATIC_PHYSNAME (type, i), "::");
4412	strcat (TYPE_FIELD_STATIC_PHYSNAME (type, i), TYPE_FIELD_NAME (type, i));
4413      }
4414}
4415
4416/* Fix-up the type structure for a CLASS so that the type entry
4417 * for a method (previously marked with a null type in hpread_read_struct_type()
4418 * is set correctly to METHOD.
4419 * OBJFILE is as for other such functions.
4420 * Void return. */
4421
4422static void
4423fixup_class_method_type (struct type *class, struct type *method,
4424			 struct objfile *objfile)
4425{
4426  int i, j, k;
4427
4428  if (!class || !method || !objfile)
4429    return;
4430
4431  /* Only for types that have methods */
4432  if ((TYPE_CODE (class) != TYPE_CODE_CLASS) &&
4433      (TYPE_CODE (class) != TYPE_CODE_UNION))
4434    return;
4435
4436  /* Loop over all methods and find the one marked with a NULL type */
4437  for (i = 0; i < TYPE_NFN_FIELDS (class); i++)
4438    for (j = 0; j < TYPE_FN_FIELDLIST_LENGTH (class, i); j++)
4439      if (TYPE_FN_FIELD_TYPE (TYPE_FN_FIELDLIST1 (class, i), j) == NULL)
4440	{
4441	  /* Set the method type */
4442	  TYPE_FN_FIELD_TYPE (TYPE_FN_FIELDLIST1 (class, i), j) = method;
4443
4444	  /* Break out of both loops -- only one method to fix up in a class */
4445	  goto finish;
4446	}
4447
4448finish:
4449  TYPE_FLAGS (class) &= ~TYPE_FLAG_INCOMPLETE;
4450}
4451
4452
4453/* If we're in the middle of processing a template, get a pointer
4454 * to the Nth template argument.
4455 * An example may make this clearer:
4456 *   template <class T1, class T2> class q2 {
4457 *     public:
4458 *     T1 a;
4459 *     T2 b;
4460 *   };
4461 * The type for "a" will be "first template arg" and
4462 * the type for "b" will be "second template arg".
4463 * We need to look these up in order to fill in "a" and "b"'s type.
4464 * This is called from hpread_type_lookup().
4465 */
4466static struct type *
4467hpread_get_nth_template_arg (struct objfile *objfile, int n)
4468{
4469  if (current_template != NULL)
4470    return TYPE_TEMPLATE_ARG (current_template, n).type;
4471  else
4472    return lookup_fundamental_type (objfile, FT_TEMPLATE_ARG);
4473}
4474
4475/* Read in and internalize a TEMPL_ARG (template arg) symbol.  */
4476
4477static struct type *
4478hpread_read_templ_arg_type (dnttpointer hp_type, union dnttentry *dn_bufp,
4479			    struct objfile *objfile, char *name)
4480{
4481  struct type *type;
4482
4483  /* See if it's something we've already deal with.  */
4484  type = hpread_alloc_type (hp_type, objfile);
4485  if (TYPE_CODE (type) == TYPE_CODE_TEMPLATE_ARG)
4486    return type;
4487
4488  /* Nope.  Fill in the appropriate fields.  */
4489  TYPE_CODE (type) = TYPE_CODE_TEMPLATE_ARG;
4490  TYPE_LENGTH (type) = 0;
4491  TYPE_NFIELDS (type) = 0;
4492  TYPE_NAME (type) = name;
4493  return type;
4494}
4495
4496/* Read in and internalize a set debug symbol.  */
4497
4498static struct type *
4499hpread_read_set_type (dnttpointer hp_type, union dnttentry *dn_bufp,
4500		      struct objfile *objfile)
4501{
4502  struct type *type;
4503
4504  /* See if it's something we've already deal with.  */
4505  type = hpread_alloc_type (hp_type, objfile);
4506  if (TYPE_CODE (type) == TYPE_CODE_SET)
4507    return type;
4508
4509  /* Nope.  Fill in the appropriate fields.  */
4510  TYPE_CODE (type) = TYPE_CODE_SET;
4511  TYPE_LENGTH (type) = dn_bufp->dset.bitlength / 8;
4512  TYPE_NFIELDS (type) = 0;
4513  TYPE_TARGET_TYPE (type) = hpread_type_lookup (dn_bufp->dset.subtype,
4514						objfile);
4515  return type;
4516}
4517
4518/* Read in and internalize an array debug symbol.  */
4519
4520static struct type *
4521hpread_read_array_type (dnttpointer hp_type, union dnttentry *dn_bufp,
4522			struct objfile *objfile)
4523{
4524  struct type *type;
4525
4526  /* Allocate an array type symbol.
4527   * Why no check for already-read here, like in the other
4528   * hpread_read_xxx_type routines?  Because it kept us
4529   * from properly determining the size of the array!
4530   */
4531  type = hpread_alloc_type (hp_type, objfile);
4532
4533  TYPE_CODE (type) = TYPE_CODE_ARRAY;
4534
4535  /* Although the hp-symtab.h does not *require* this to be the case,
4536   * GDB is assuming that "arrayisbytes" and "elemisbytes" be consistent.
4537   * I.e., express both array-length and element-length in bits,
4538   * or express both array-length and element-length in bytes.
4539   */
4540  if (!((dn_bufp->darray.arrayisbytes && dn_bufp->darray.elemisbytes) ||
4541	(!dn_bufp->darray.arrayisbytes && !dn_bufp->darray.elemisbytes)))
4542    {
4543      warning ("error in hpread_array_type.\n");
4544      return NULL;
4545    }
4546  else if (dn_bufp->darray.arraylength == 0x7fffffff)
4547    {
4548      /* The HP debug format represents char foo[]; as an array with
4549       * length 0x7fffffff.  Internally GDB wants to represent this
4550       *  as an array of length zero.
4551       */
4552      TYPE_LENGTH (type) = 0;
4553    }
4554  else if (dn_bufp->darray.arrayisbytes)
4555    TYPE_LENGTH (type) = dn_bufp->darray.arraylength;
4556  else				/* arraylength is in bits */
4557    TYPE_LENGTH (type) = dn_bufp->darray.arraylength / 8;
4558
4559  TYPE_TARGET_TYPE (type) = hpread_type_lookup (dn_bufp->darray.elemtype,
4560						objfile);
4561
4562  /* The one "field" is used to store the subscript type */
4563  /* Since C and C++ multi-dimensional arrays are simply represented
4564   * as: array of array of ..., we only need one subscript-type
4565   * per array. This subscript type is typically a subrange of integer.
4566   * If this gets extended to support languages like Pascal, then
4567   * we need to fix this to represent multi-dimensional arrays properly.
4568   */
4569  TYPE_NFIELDS (type) = 1;
4570  TYPE_FIELDS (type) = (struct field *)
4571    obstack_alloc (&objfile->objfile_obstack, sizeof (struct field));
4572  TYPE_FIELD_TYPE (type, 0) = hpread_type_lookup (dn_bufp->darray.indextype,
4573						  objfile);
4574  return type;
4575}
4576
4577/* Read in and internalize a subrange debug symbol.  */
4578static struct type *
4579hpread_read_subrange_type (dnttpointer hp_type, union dnttentry *dn_bufp,
4580			   struct objfile *objfile)
4581{
4582  struct type *type;
4583
4584  /* Is it something we've already dealt with.  */
4585  type = hpread_alloc_type (hp_type, objfile);
4586  if (TYPE_CODE (type) == TYPE_CODE_RANGE)
4587    return type;
4588
4589  /* Nope, internalize it.  */
4590  TYPE_CODE (type) = TYPE_CODE_RANGE;
4591  TYPE_LENGTH (type) = dn_bufp->dsubr.bitlength / 8;
4592  TYPE_NFIELDS (type) = 2;
4593  TYPE_FIELDS (type)
4594    = (struct field *) obstack_alloc (&objfile->objfile_obstack,
4595				      2 * sizeof (struct field));
4596
4597  if (dn_bufp->dsubr.dyn_low)
4598    TYPE_FIELD_BITPOS (type, 0) = 0;
4599  else
4600    TYPE_FIELD_BITPOS (type, 0) = dn_bufp->dsubr.lowbound;
4601
4602  if (dn_bufp->dsubr.dyn_high)
4603    TYPE_FIELD_BITPOS (type, 1) = -1;
4604  else
4605    TYPE_FIELD_BITPOS (type, 1) = dn_bufp->dsubr.highbound;
4606  TYPE_TARGET_TYPE (type) = hpread_type_lookup (dn_bufp->dsubr.subtype,
4607						objfile);
4608  return type;
4609}
4610
4611/* struct type * hpread_type_lookup(hp_type, objfile)
4612 *   Arguments:
4613 *     hp_type: A pointer into the DNTT specifying what type we
4614 *              are about to "look up"., or else [for fundamental types
4615 *              like int, float, ...] an "immediate" structure describing
4616 *              the type.
4617 *     objfile: ?
4618 *   Return value: A pointer to a "struct type" (representation of a
4619 *                 type in GDB's internal symbol table - see gdbtypes.h)
4620 *   Routine description:
4621 *     There are a variety of places when scanning the DNTT when we
4622 *     need to interpret a "type" field. The simplest and most basic
4623 *     example is when we're processing the symbol table record
4624 *     for a data symbol (a SVAR or DVAR record). That has
4625 *     a "type" field specifying the type of the data symbol. That
4626 *     "type" field is either an "immediate" type specification (for the
4627 *     fundamental types) or a DNTT pointer (for more complicated types).
4628 *     For the more complicated types, we may or may not have already
4629 *     processed the pointed-to type. (Multiple data symbols can of course
4630 *     share the same type).
4631 *     The job of hpread_type_lookup() is to process this "type" field.
4632 *     Most of the real work is done in subroutines. Here we interpret
4633 *     the immediate flag. If not immediate, chase the DNTT pointer to
4634 *     find our way to the SOM record describing the type, switch on
4635 *     the SOM kind, and then call an appropriate subroutine depending
4636 *     on what kind of type we are constructing. (e.g., an array type,
4637 *     a struct/class type, etc).
4638 */
4639static struct type *
4640hpread_type_lookup (dnttpointer hp_type, struct objfile *objfile)
4641{
4642  union dnttentry *dn_bufp;
4643  struct type *tmp_type;
4644
4645  /* First see if it's a simple builtin type.  */
4646  if (hp_type.dntti.immediate)
4647    {
4648      /* If this is a template argument, the argument number is
4649       * encoded in the bitlength. All other cases, just return
4650       * GDB's representation of this fundamental type.
4651       */
4652      if (hp_type.dntti.type == HP_TYPE_TEMPLATE_ARG)
4653	return hpread_get_nth_template_arg (objfile, hp_type.dntti.bitlength);
4654      else
4655	return lookup_fundamental_type (objfile,
4656					hpread_type_translate (hp_type));
4657    }
4658
4659  /* Not a builtin type.  We'll have to read it in.  */
4660  if (hp_type.dnttp.index < LNTT_SYMCOUNT (objfile))
4661    dn_bufp = hpread_get_lntt (hp_type.dnttp.index, objfile);
4662  else
4663    /* This is a fancy way of returning NULL */
4664    return lookup_fundamental_type (objfile, FT_VOID);
4665
4666  switch (dn_bufp->dblock.kind)
4667    {
4668    case DNTT_TYPE_SRCFILE:
4669    case DNTT_TYPE_MODULE:
4670    case DNTT_TYPE_ENTRY:
4671    case DNTT_TYPE_BEGIN:
4672    case DNTT_TYPE_END:
4673    case DNTT_TYPE_IMPORT:
4674    case DNTT_TYPE_LABEL:
4675    case DNTT_TYPE_FPARAM:
4676    case DNTT_TYPE_SVAR:
4677    case DNTT_TYPE_DVAR:
4678    case DNTT_TYPE_CONST:
4679    case DNTT_TYPE_MEMENUM:
4680    case DNTT_TYPE_VARIANT:
4681    case DNTT_TYPE_FILE:
4682    case DNTT_TYPE_WITH:
4683    case DNTT_TYPE_COMMON:
4684    case DNTT_TYPE_COBSTRUCT:
4685    case DNTT_TYPE_XREF:
4686    case DNTT_TYPE_SA:
4687    case DNTT_TYPE_MACRO:
4688    case DNTT_TYPE_BLOCKDATA:
4689    case DNTT_TYPE_CLASS_SCOPE:
4690    case DNTT_TYPE_MEMACCESS:
4691    case DNTT_TYPE_INHERITANCE:
4692    case DNTT_TYPE_OBJECT_ID:
4693    case DNTT_TYPE_FRIEND_CLASS:
4694    case DNTT_TYPE_FRIEND_FUNC:
4695      /* These are not types - something went wrong.  */
4696      /* This is a fancy way of returning NULL */
4697      return lookup_fundamental_type (objfile, FT_VOID);
4698
4699    case DNTT_TYPE_FUNCTION:
4700      /* We wind up here when dealing with class member functions
4701       * (called from hpread_read_struct_type(), i.e. when processing
4702       * the class definition itself).
4703       */
4704      return hpread_read_function_type (hp_type, dn_bufp, objfile, 0);
4705
4706    case DNTT_TYPE_DOC_FUNCTION:
4707      return hpread_read_doc_function_type (hp_type, dn_bufp, objfile, 0);
4708
4709    case DNTT_TYPE_TYPEDEF:
4710      {
4711	/* A typedef - chase it down by making a recursive call */
4712	struct type *structtype = hpread_type_lookup (dn_bufp->dtype.type,
4713						      objfile);
4714
4715	/* The following came from the base hpread.c that we inherited.
4716	 * It is WRONG so I have commented it out. - RT
4717	 *...
4718
4719	 char *suffix;
4720	 suffix = VT (objfile) + dn_bufp->dtype.name;
4721	 TYPE_NAME (structtype) = suffix;
4722
4723	 * ... further explanation ....
4724	 *
4725	 * What we have here is a typedef pointing to a typedef.
4726	 * E.g.,
4727	 * typedef int foo;
4728	 * typedef foo fum;
4729	 *
4730	 * What we desire to build is (these are pictures
4731	 * of "struct type"'s):
4732	 *
4733	 *  +---------+     +----------+     +------------+
4734	 *  | typedef |     | typedef  |     | fund. type |
4735	 *  |     type| ->  |      type| ->  |            |
4736	 *  | "fum"   |     | "foo"    |     | "int"      |
4737	 *  +---------+     +----------+     +------------+
4738	 *
4739	 * What this commented-out code is doing is smashing the
4740	 * name of pointed-to-type to be the same as the pointed-from
4741	 * type. So we wind up with something like:
4742	 *
4743	 *  +---------+     +----------+     +------------+
4744	 *  | typedef |     | typedef  |     | fund. type |
4745	 *  |     type| ->  |      type| ->  |            |
4746	 *  | "fum"   |     | "fum"    |     | "fum"      |
4747	 *  +---------+     +----------+     +------------+
4748	 *
4749	 */
4750
4751	return structtype;
4752      }
4753
4754    case DNTT_TYPE_TAGDEF:
4755      {
4756	/* Just a little different from above.  We have to tack on
4757	 * an identifier of some kind (struct, union, enum, class, etc).
4758	 */
4759	struct type *structtype = hpread_type_lookup (dn_bufp->dtype.type,
4760						      objfile);
4761	char *prefix, *suffix;
4762	suffix = VT (objfile) + dn_bufp->dtype.name;
4763
4764	/* Lookup the next type in the list.  It should be a structure,
4765	 * union, class, enum, or template type.
4766	 * We will need to attach that to our name.
4767	 */
4768	if (dn_bufp->dtype.type.dnttp.index < LNTT_SYMCOUNT (objfile))
4769	  dn_bufp = hpread_get_lntt (dn_bufp->dtype.type.dnttp.index, objfile);
4770	else
4771	  {
4772	    complaint (&symfile_complaints, "error in hpread_type_lookup().");
4773	    return NULL;
4774	  }
4775
4776	if (dn_bufp->dblock.kind == DNTT_TYPE_STRUCT)
4777	  {
4778	    prefix = "struct ";
4779	  }
4780	else if (dn_bufp->dblock.kind == DNTT_TYPE_UNION)
4781	  {
4782	    prefix = "union ";
4783	  }
4784	else if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS)
4785	  {
4786	    /* Further field for CLASS saying how it was really declared */
4787	    /* 0==class, 1==union, 2==struct */
4788	    if (dn_bufp->dclass.class_decl == 0)
4789	      prefix = "class ";
4790	    else if (dn_bufp->dclass.class_decl == 1)
4791	      prefix = "union ";
4792	    else if (dn_bufp->dclass.class_decl == 2)
4793	      prefix = "struct ";
4794	    else
4795	      prefix = "";
4796	  }
4797	else if (dn_bufp->dblock.kind == DNTT_TYPE_ENUM)
4798	  {
4799	    prefix = "enum ";
4800	  }
4801	else if (dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE)
4802	  {
4803	    prefix = "template ";
4804	  }
4805	else
4806	  {
4807	    prefix = "";
4808	  }
4809
4810	/* Build the correct name.  */
4811	TYPE_NAME (structtype)
4812	  = (char *) obstack_alloc (&objfile->objfile_obstack,
4813				    strlen (prefix) + strlen (suffix) + 1);
4814	TYPE_NAME (structtype) = strcpy (TYPE_NAME (structtype), prefix);
4815	TYPE_NAME (structtype) = strcat (TYPE_NAME (structtype), suffix);
4816	TYPE_TAG_NAME (structtype) = suffix;
4817
4818	/* For classes/structs, we have to set the static member "physnames"
4819	   to point to strings like "Class::Member" */
4820	if (TYPE_CODE (structtype) == TYPE_CODE_STRUCT)
4821	  fix_static_member_physnames (structtype, suffix, objfile);
4822
4823	return structtype;
4824      }
4825
4826    case DNTT_TYPE_POINTER:
4827      /* Pointer type - call a routine in gdbtypes.c that constructs
4828       * the appropriate GDB type.
4829       */
4830      return make_pointer_type (
4831				 hpread_type_lookup (dn_bufp->dptr.pointsto,
4832						     objfile),
4833				 NULL);
4834
4835    case DNTT_TYPE_REFERENCE:
4836      /* C++ reference type - call a routine in gdbtypes.c that constructs
4837       * the appropriate GDB type.
4838       */
4839      return make_reference_type (
4840			   hpread_type_lookup (dn_bufp->dreference.pointsto,
4841					       objfile),
4842				   NULL);
4843
4844    case DNTT_TYPE_ENUM:
4845      return hpread_read_enum_type (hp_type, dn_bufp, objfile);
4846    case DNTT_TYPE_SET:
4847      return hpread_read_set_type (hp_type, dn_bufp, objfile);
4848    case DNTT_TYPE_SUBRANGE:
4849      return hpread_read_subrange_type (hp_type, dn_bufp, objfile);
4850    case DNTT_TYPE_ARRAY:
4851      return hpread_read_array_type (hp_type, dn_bufp, objfile);
4852    case DNTT_TYPE_STRUCT:
4853    case DNTT_TYPE_UNION:
4854      return hpread_read_struct_type (hp_type, dn_bufp, objfile);
4855    case DNTT_TYPE_FIELD:
4856      return hpread_type_lookup (dn_bufp->dfield.type, objfile);
4857
4858    case DNTT_TYPE_FUNCTYPE:
4859      /* Here we want to read the function SOMs and return a
4860       * type for it. We get here, for instance, when processing
4861       * pointer-to-function type.
4862       */
4863      return hpread_read_function_type (hp_type, dn_bufp, objfile, 0);
4864
4865    case DNTT_TYPE_PTRMEM:
4866      /* Declares a C++ pointer-to-data-member type.
4867       * The "pointsto" field defines the class,
4868       * while the "memtype" field defines the pointed-to-type.
4869       */
4870      {
4871	struct type *ptrmemtype;
4872	struct type *class_type;
4873	struct type *memtype;
4874	memtype = hpread_type_lookup (dn_bufp->dptrmem.memtype,
4875				      objfile),
4876	  class_type = hpread_type_lookup (dn_bufp->dptrmem.pointsto,
4877					   objfile),
4878	  ptrmemtype = alloc_type (objfile);
4879	smash_to_member_type (ptrmemtype, class_type, memtype);
4880	return make_pointer_type (ptrmemtype, NULL);
4881      }
4882      break;
4883
4884    case DNTT_TYPE_PTRMEMFUNC:
4885      /* Defines a C++ pointer-to-function-member type.
4886       * The "pointsto" field defines the class,
4887       * while the "memtype" field defines the pointed-to-type.
4888       */
4889      {
4890	struct type *ptrmemtype;
4891	struct type *class_type;
4892	struct type *functype;
4893	struct type *retvaltype;
4894	int nargs;
4895	int i;
4896	class_type = hpread_type_lookup (dn_bufp->dptrmem.pointsto,
4897					 objfile);
4898	functype = hpread_type_lookup (dn_bufp->dptrmem.memtype,
4899				       objfile);
4900	retvaltype = TYPE_TARGET_TYPE (functype);
4901	nargs = TYPE_NFIELDS (functype);
4902	ptrmemtype = alloc_type (objfile);
4903
4904	smash_to_method_type (ptrmemtype, class_type, retvaltype,
4905			      TYPE_FIELDS (functype),
4906			      TYPE_NFIELDS (functype),
4907			      0);
4908	return make_pointer_type (ptrmemtype, NULL);
4909      }
4910      break;
4911
4912    case DNTT_TYPE_CLASS:
4913      return hpread_read_struct_type (hp_type, dn_bufp, objfile);
4914
4915    case DNTT_TYPE_GENFIELD:
4916      /* Chase pointer from GENFIELD to FIELD, and make recursive
4917       * call on that.
4918       */
4919      return hpread_type_lookup (dn_bufp->dgenfield.field, objfile);
4920
4921    case DNTT_TYPE_VFUNC:
4922      /* C++ virtual function.
4923       * We get here in the course of processing a class type which
4924       * contains virtual functions. Just go through another level
4925       * of indirection to get to the pointed-to function SOM.
4926       */
4927      return hpread_type_lookup (dn_bufp->dvfunc.funcptr, objfile);
4928
4929    case DNTT_TYPE_MODIFIER:
4930      /* Check the modifiers and then just make a recursive call on
4931       * the "type" pointed to by the modifier DNTT.
4932       *
4933       * pai:: FIXME -- do we ever want to handle "m_duplicate" and
4934       * "m_void" modifiers?  Is static_flag really needed here?
4935       * (m_static used for methods of classes, elsewhere).
4936       */
4937      tmp_type = make_cv_type (dn_bufp->dmodifier.m_const,
4938			       dn_bufp->dmodifier.m_volatile,
4939		      hpread_type_lookup (dn_bufp->dmodifier.type, objfile),
4940			       0);
4941      return tmp_type;
4942
4943
4944    case DNTT_TYPE_MEMFUNC:
4945      /* Member function. Treat like a function.
4946       * I think we get here in the course of processing a
4947       * pointer-to-member-function type...
4948       */
4949      return hpread_read_function_type (hp_type, dn_bufp, objfile, 0);
4950
4951    case DNTT_TYPE_DOC_MEMFUNC:
4952      return hpread_read_doc_function_type (hp_type, dn_bufp, objfile, 0);
4953
4954    case DNTT_TYPE_TEMPLATE:
4955      /* Template - sort of the header for a template definition,
4956       * which like a class, points to a member list and also points
4957       * to a TEMPLATE_ARG list of type-arguments.
4958       */
4959      return hpread_read_struct_type (hp_type, dn_bufp, objfile);
4960
4961    case DNTT_TYPE_TEMPLATE_ARG:
4962      {
4963	char *name;
4964	/* The TEMPLATE record points to an argument list of
4965	 * TEMPLATE_ARG records, each of which describes one
4966	 * of the type-arguments.
4967	 */
4968	name = VT (objfile) + dn_bufp->dtempl_arg.name;
4969	return hpread_read_templ_arg_type (hp_type, dn_bufp, objfile, name);
4970      }
4971
4972    case DNTT_TYPE_FUNC_TEMPLATE:
4973      /* We wind up here when processing a TEMPLATE type,
4974       * if the template has member function(s).
4975       * Treat it like a FUNCTION.
4976       */
4977      return hpread_read_function_type (hp_type, dn_bufp, objfile, 0);
4978
4979    case DNTT_TYPE_LINK:
4980      /* The LINK record is used to link up templates with instantiations.
4981       * There is no type associated with the LINK record per se.
4982       */
4983      return lookup_fundamental_type (objfile, FT_VOID);
4984
4985      /* Also not yet handled... */
4986      /* case DNTT_TYPE_DYN_ARRAY_DESC: */
4987      /* case DNTT_TYPE_DESC_SUBRANGE: */
4988      /* case DNTT_TYPE_BEGIN_EXT: */
4989      /* case DNTT_TYPE_INLN: */
4990      /* case DNTT_TYPE_INLN_LIST: */
4991      /* case DNTT_TYPE_ALIAS: */
4992    default:
4993      /* A fancy way of returning NULL */
4994      return lookup_fundamental_type (objfile, FT_VOID);
4995    }
4996}
4997
4998static sltpointer
4999hpread_record_lines (struct subfile *subfile, sltpointer s_idx,
5000		     sltpointer e_idx, struct objfile *objfile,
5001		     CORE_ADDR offset)
5002{
5003  union sltentry *sl_bufp;
5004
5005  while (s_idx <= e_idx)
5006    {
5007      sl_bufp = hpread_get_slt (s_idx, objfile);
5008      /* Only record "normal" entries in the SLT.  */
5009      if (sl_bufp->snorm.sltdesc == SLT_NORMAL
5010	  || sl_bufp->snorm.sltdesc == SLT_EXIT)
5011	record_line (subfile, sl_bufp->snorm.line,
5012		     sl_bufp->snorm.address + offset);
5013      else if (sl_bufp->snorm.sltdesc == SLT_NORMAL_OFFSET)
5014	record_line (subfile, sl_bufp->snormoff.line,
5015		     sl_bufp->snormoff.address + offset);
5016      s_idx++;
5017    }
5018  return e_idx;
5019}
5020
5021/* Given a function "f" which is a member of a class, find
5022 * the classname that it is a member of. Used to construct
5023 * the name (e.g., "c::f") which GDB will put in the
5024 * "demangled name" field of the function's symbol.
5025 * Called from hpread_process_one_debug_symbol()
5026 * If "f" is not a member function, return NULL.
5027 */
5028static char *
5029class_of (struct type *functype)
5030{
5031  struct type *first_param_type;
5032  char *first_param_name;
5033  struct type *pointed_to_type;
5034  char *class_name;
5035
5036  /* Check that the function has a first argument "this",
5037   * and that "this" is a pointer to a class. If not,
5038   * functype is not a member function, so return NULL.
5039   */
5040  if (TYPE_NFIELDS (functype) == 0)
5041    return NULL;
5042  first_param_name = TYPE_FIELD_NAME (functype, 0);
5043  if (first_param_name == NULL)
5044    return NULL;		/* paranoia */
5045  if (strcmp (first_param_name, "this"))
5046    return NULL;
5047  first_param_type = TYPE_FIELD_TYPE (functype, 0);
5048  if (first_param_type == NULL)
5049    return NULL;		/* paranoia */
5050  if (TYPE_CODE (first_param_type) != TYPE_CODE_PTR)
5051    return NULL;
5052
5053  /* Get the thing that "this" points to, check that
5054   * it's a class, and get its class name.
5055   */
5056  pointed_to_type = TYPE_TARGET_TYPE (first_param_type);
5057  if (pointed_to_type == NULL)
5058    return NULL;		/* paranoia */
5059  if (TYPE_CODE (pointed_to_type) != TYPE_CODE_CLASS)
5060    return NULL;
5061  class_name = TYPE_NAME (pointed_to_type);
5062  if (class_name == NULL)
5063    return NULL;		/* paranoia */
5064
5065  /* The class name may be of the form "class c", in which case
5066   * we want to strip off the leading "class ".
5067   */
5068  if (strncmp (class_name, "class ", 6) == 0)
5069    class_name += 6;
5070
5071  return class_name;
5072}
5073
5074/* Internalize one native debug symbol.
5075 * Called in a loop from hpread_expand_symtab().
5076 * Arguments:
5077 *   dn_bufp:
5078 *   name:
5079 *   section_offsets:
5080 *   objfile:
5081 *   text_offset:
5082 *   text_size:
5083 *   filename:
5084 *   index:             Index of this symbol
5085 *   at_module_boundary_p Pointer to boolean flag to control caller's loop.
5086 */
5087
5088static void
5089hpread_process_one_debug_symbol (union dnttentry *dn_bufp, char *name,
5090				 struct section_offsets *section_offsets,
5091				 struct objfile *objfile, CORE_ADDR text_offset,
5092				 int text_size, char *filename, int index,
5093				 int *at_module_boundary_p)
5094{
5095  unsigned long desc;
5096  int type;
5097  CORE_ADDR valu;
5098  int offset = ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
5099  int data_offset = ANOFFSET (section_offsets, SECT_OFF_DATA (objfile));
5100  union dnttentry *dn_temp;
5101  dnttpointer hp_type;
5102  struct symbol *sym;
5103  struct context_stack *new;
5104  char *class_scope_name;
5105
5106  /* Allocate one GDB debug symbol and fill in some default values. */
5107  sym = (struct symbol *) obstack_alloc (&objfile->objfile_obstack,
5108					 sizeof (struct symbol));
5109  memset (sym, 0, sizeof (struct symbol));
5110  DEPRECATED_SYMBOL_NAME (sym) = obsavestring (name, strlen (name), &objfile->objfile_obstack);
5111  SYMBOL_LANGUAGE (sym) = language_auto;
5112  SYMBOL_DOMAIN (sym) = VAR_DOMAIN;
5113  SYMBOL_LINE (sym) = 0;
5114  SYMBOL_VALUE (sym) = 0;
5115  SYMBOL_CLASS (sym) = LOC_TYPEDEF;
5116
5117  /* Just a trick in case the SOM debug symbol is a type definition.
5118   * There are routines that are set up to build a GDB type symbol, given
5119   * a SOM dnttpointer. So we set up a dummy SOM dnttpointer "hp_type".
5120   * This allows us to call those same routines.
5121   */
5122  hp_type.dnttp.extension = 1;
5123  hp_type.dnttp.immediate = 0;
5124  hp_type.dnttp.global = 0;
5125  hp_type.dnttp.index = index;
5126
5127  /* This "type" is the type of SOM record.
5128   * Switch on SOM type.
5129   */
5130  type = dn_bufp->dblock.kind;
5131  switch (type)
5132    {
5133    case DNTT_TYPE_SRCFILE:
5134      /* This type of symbol indicates from which source file or
5135       * include file any following data comes. It may indicate:
5136       *
5137       * o   The start of an entirely new source file (and thus
5138       *     a new module)
5139       *
5140       * o   The start of a different source file due to #include
5141       *
5142       * o   The end of an include file and the return to the original
5143       *     file. Thus if "foo.c" includes "bar.h", we see first
5144       *     a SRCFILE for foo.c, then one for bar.h, and then one for
5145       *     foo.c again.
5146       *
5147       * If it indicates the start of a new module then we must
5148       * finish the symbol table of the previous module
5149       * (if any) and start accumulating a new symbol table.
5150       */
5151
5152      valu = text_offset;
5153      if (!last_source_file)
5154	{
5155	  /*
5156	   * A note on "last_source_file": this is a char* pointing
5157	   * to the actual file name.  "start_symtab" sets it,
5158	   * "end_symtab" clears it.
5159	   *
5160	   * So if "last_source_file" is NULL, then either this is
5161	   * the first record we are looking at, or a previous call
5162	   * to "end_symtab()" was made to close out the previous
5163	   * module.  Since we're now quitting the scan loop when we
5164	   * see a MODULE END record, we should never get here, except
5165	   * in the case that we're not using the quick look-up tables
5166	   * and have to use the old system as a fall-back.
5167	   */
5168	  start_symtab (name, NULL, valu);
5169	  record_debugformat ("HP");
5170	  SL_INDEX (objfile) = dn_bufp->dsfile.address;
5171	}
5172
5173      else
5174	{
5175	  /* Either a new include file, or a SRCFILE record
5176	   * saying we are back in the main source (or out of
5177	   * a nested include file) again.
5178	   */
5179	  SL_INDEX (objfile) = hpread_record_lines (current_subfile,
5180						    SL_INDEX (objfile),
5181						    dn_bufp->dsfile.address,
5182						    objfile, offset);
5183	}
5184
5185      /* A note on "start_subfile".  This routine will check
5186       * the name we pass it and look for an existing subfile
5187       * of that name.  There's thus only one sub-file for the
5188       * actual source (e.g. for "foo.c" in foo.c), despite the
5189       * fact that we'll see lots of SRCFILE entries for foo.c
5190       * inside foo.c.
5191       */
5192      start_subfile (name, NULL);
5193      break;
5194
5195    case DNTT_TYPE_MODULE:
5196      /*
5197       * We no longer ignore DNTT_TYPE_MODULE symbols.  The module
5198       * represents the meaningful semantic structure of a compilation
5199       * unit.  We expect to start the psymtab-to-symtab expansion
5200       * looking at a MODULE entry, and to end it at the corresponding
5201       * END MODULE entry.
5202       *
5203       *--Begin outdated comments
5204       *
5205       * This record signifies the start of a new source module
5206       * In C/C++ there is no explicit "module" construct in the language,
5207       * but each compilation unit is implicitly a module and they
5208       * do emit the DNTT_TYPE_MODULE records.
5209       * The end of the module is marked by a matching DNTT_TYPE_END record.
5210       *
5211       * The reason GDB gets away with ignoring the DNTT_TYPE_MODULE record
5212       * is it notices the DNTT_TYPE_END record for the previous
5213       * module (see comments under DNTT_TYPE_END case), and then treats
5214       * the next DNTT_TYPE_SRCFILE record as if it were the module-start record.
5215       * (i.e., it makes a start_symtab() call).
5216       * This scheme seems a little convoluted, but I'll leave it
5217       * alone on the principle "if it ain't broke don't fix
5218       * it". (RT).
5219       *
5220       *-- End outdated comments
5221       */
5222
5223      valu = text_offset;
5224      if (!last_source_file)
5225	{
5226	  /* Start of a new module. We know this because "last_source_file"
5227	   * is NULL, which can only happen the first time or if we just
5228	   * made a call to end_symtab() to close out the previous module.
5229	   */
5230	  start_symtab (name, NULL, valu);
5231	  SL_INDEX (objfile) = dn_bufp->dmodule.address;
5232	}
5233      else
5234	{
5235	  /* This really shouldn't happen if we're using the quick
5236	   * look-up tables, as it would mean we'd scanned past an
5237	   * END MODULE entry.  But if we're not using the tables,
5238	   * we started the module on the SRCFILE entry, so it's ok.
5239	   * For now, accept this.
5240	   */
5241	  /* warning( "Error expanding psymtab, missed module end, found entry for %s",
5242	   *           name );
5243	   */
5244	  *at_module_boundary_p = -1;
5245	}
5246
5247      start_subfile (name, NULL);
5248      break;
5249
5250    case DNTT_TYPE_FUNCTION:
5251    case DNTT_TYPE_ENTRY:
5252      /* A function or secondary entry point.  */
5253      valu = dn_bufp->dfunc.lowaddr + offset;
5254
5255      /* Record lines up to this point. */
5256      SL_INDEX (objfile) = hpread_record_lines (current_subfile,
5257						SL_INDEX (objfile),
5258						dn_bufp->dfunc.address,
5259						objfile, offset);
5260
5261      WITHIN_FUNCTION (objfile) = 1;
5262      CURRENT_FUNCTION_VALUE (objfile) = valu;
5263
5264      /* Stack must be empty now.  */
5265      if (context_stack_depth != 0)
5266	lbrac_unmatched_complaint (symnum);
5267      new = push_context (0, valu);
5268
5269      /* Built a type for the function. This includes processing
5270       * the symbol records for the function parameters.
5271       */
5272      SYMBOL_CLASS (sym) = LOC_BLOCK;
5273      SYMBOL_TYPE (sym) = hpread_read_function_type (hp_type, dn_bufp, objfile, 1);
5274
5275      /* All functions in C++ have prototypes.  For C we don't have enough
5276         information in the debug info.  */
5277      if (SYMBOL_LANGUAGE (sym) == language_cplus)
5278	TYPE_FLAGS (SYMBOL_TYPE (sym)) |= TYPE_FLAG_PROTOTYPED;
5279
5280      /* The "DEPRECATED_SYMBOL_NAME" field is expected to be the mangled name
5281       * (if any), which we get from the "alias" field of the SOM record
5282       * if that exists.
5283       */
5284      if ((dn_bufp->dfunc.language == HP_LANGUAGE_CPLUSPLUS) &&
5285	  dn_bufp->dfunc.alias &&	/* has an alias */
5286	  *(char *) (VT (objfile) + dn_bufp->dfunc.alias))	/* not a null string */
5287	DEPRECATED_SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->dfunc.alias;
5288      else
5289	DEPRECATED_SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->dfunc.name;
5290
5291      /* Special hack to get around HP compilers' insistence on
5292       * reporting "main" as "_MAIN_" for C/C++ */
5293      if ((strcmp (DEPRECATED_SYMBOL_NAME (sym), "_MAIN_") == 0) &&
5294	  (strcmp (VT (objfile) + dn_bufp->dfunc.name, "main") == 0))
5295	DEPRECATED_SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->dfunc.name;
5296
5297      /* The SYMBOL_CPLUS_DEMANGLED_NAME field is expected to
5298       * be the demangled name.
5299       */
5300      if (dn_bufp->dfunc.language == HP_LANGUAGE_CPLUSPLUS)
5301	{
5302	  /* SYMBOL_INIT_DEMANGLED_NAME is a macro which winds up
5303	   * calling the demangler in libiberty (cplus_demangle()) to
5304	   * do the job. This generally does the job, even though
5305	   * it's intended for the GNU compiler and not the aCC compiler
5306	   * Note that SYMBOL_INIT_DEMANGLED_NAME calls the
5307	   * demangler with arguments DMGL_PARAMS | DMGL_ANSI.
5308	   * Generally, we don't want params when we display
5309	   * a demangled name, but when I took out the DMGL_PARAMS,
5310	   * some things broke, so I'm leaving it in here, and
5311	   * working around the issue in stack.c. - RT
5312	   */
5313	  SYMBOL_INIT_DEMANGLED_NAME (sym, &objfile->objfile_obstack);
5314	  if ((DEPRECATED_SYMBOL_NAME (sym) == VT (objfile) + dn_bufp->dfunc.alias) &&
5315	      (!SYMBOL_CPLUS_DEMANGLED_NAME (sym)))
5316	    {
5317
5318	      /* Well, the symbol name is mangled, but the
5319	       * demangler in libiberty failed so the demangled
5320	       * field is still NULL. Try to
5321	       * do the job ourselves based on the "name" field
5322	       * in the SOM record. A complication here is that
5323	       * the name field contains only the function name
5324	       * (like "f"), whereas we want the class qualification
5325	       * (as in "c::f"). Try to reconstruct that.
5326	       */
5327	      char *basename;
5328	      char *classname;
5329	      char *dem_name;
5330	      basename = VT (objfile) + dn_bufp->dfunc.name;
5331	      classname = class_of (SYMBOL_TYPE (sym));
5332	      if (classname)
5333		{
5334		  dem_name = xmalloc (strlen (basename) + strlen (classname) + 3);
5335		  strcpy (dem_name, classname);
5336		  strcat (dem_name, "::");
5337		  strcat (dem_name, basename);
5338		  SYMBOL_CPLUS_DEMANGLED_NAME (sym) = dem_name;
5339		  SYMBOL_LANGUAGE (sym) = language_cplus;
5340		}
5341	    }
5342	}
5343
5344      /* Add the function symbol to the list of symbols in this blockvector */
5345      if (dn_bufp->dfunc.global)
5346	add_symbol_to_list (sym, &global_symbols);
5347      else
5348	add_symbol_to_list (sym, &file_symbols);
5349      new->name = sym;
5350
5351      /* Search forward to the next BEGIN and also read
5352       * in the line info up to that point.
5353       * Not sure why this is needed.
5354       * In HP FORTRAN this code is harmful since there
5355       * may not be a BEGIN after the FUNCTION.
5356       * So I made it C/C++ specific. - RT
5357       */
5358      if (dn_bufp->dfunc.language == HP_LANGUAGE_C ||
5359	  dn_bufp->dfunc.language == HP_LANGUAGE_CPLUSPLUS)
5360	{
5361	  while (dn_bufp->dblock.kind != DNTT_TYPE_BEGIN)
5362	    {
5363	      dn_bufp = hpread_get_lntt (++index, objfile);
5364	      if (dn_bufp->dblock.extension)
5365		continue;
5366	    }
5367	  SL_INDEX (objfile) = hpread_record_lines (current_subfile,
5368						    SL_INDEX (objfile),
5369						    dn_bufp->dbegin.address,
5370						    objfile, offset);
5371	  SYMBOL_LINE (sym) = hpread_get_line (dn_bufp->dbegin.address, objfile);
5372	}
5373      record_line (current_subfile, SYMBOL_LINE (sym), valu);
5374      break;
5375
5376    case DNTT_TYPE_DOC_FUNCTION:
5377      valu = dn_bufp->ddocfunc.lowaddr + offset;
5378
5379      /* Record lines up to this point. */
5380      SL_INDEX (objfile) = hpread_record_lines (current_subfile,
5381						SL_INDEX (objfile),
5382						dn_bufp->ddocfunc.address,
5383						objfile, offset);
5384
5385      WITHIN_FUNCTION (objfile) = 1;
5386      CURRENT_FUNCTION_VALUE (objfile) = valu;
5387      /* Stack must be empty now.  */
5388      if (context_stack_depth != 0)
5389	lbrac_unmatched_complaint (symnum);
5390      new = push_context (0, valu);
5391
5392      /* Built a type for the function. This includes processing
5393       * the symbol records for the function parameters.
5394       */
5395      SYMBOL_CLASS (sym) = LOC_BLOCK;
5396      SYMBOL_TYPE (sym) = hpread_read_doc_function_type (hp_type, dn_bufp, objfile, 1);
5397
5398      /* The "DEPRECATED_SYMBOL_NAME" field is expected to be the mangled name
5399       * (if any), which we get from the "alias" field of the SOM record
5400       * if that exists.
5401       */
5402      if ((dn_bufp->ddocfunc.language == HP_LANGUAGE_CPLUSPLUS) &&
5403	  dn_bufp->ddocfunc.alias &&	/* has an alias */
5404	  *(char *) (VT (objfile) + dn_bufp->ddocfunc.alias))	/* not a null string */
5405	DEPRECATED_SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->ddocfunc.alias;
5406      else
5407	DEPRECATED_SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->ddocfunc.name;
5408
5409      /* Special hack to get around HP compilers' insistence on
5410       * reporting "main" as "_MAIN_" for C/C++ */
5411      if ((strcmp (DEPRECATED_SYMBOL_NAME (sym), "_MAIN_") == 0) &&
5412	  (strcmp (VT (objfile) + dn_bufp->ddocfunc.name, "main") == 0))
5413	DEPRECATED_SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->ddocfunc.name;
5414
5415      if (dn_bufp->ddocfunc.language == HP_LANGUAGE_CPLUSPLUS)
5416	{
5417
5418	  /* SYMBOL_INIT_DEMANGLED_NAME is a macro which winds up
5419	   * calling the demangler in libiberty (cplus_demangle()) to
5420	   * do the job. This generally does the job, even though
5421	   * it's intended for the GNU compiler and not the aCC compiler
5422	   * Note that SYMBOL_INIT_DEMANGLED_NAME calls the
5423	   * demangler with arguments DMGL_PARAMS | DMGL_ANSI.
5424	   * Generally, we don't want params when we display
5425	   * a demangled name, but when I took out the DMGL_PARAMS,
5426	   * some things broke, so I'm leaving it in here, and
5427	   * working around the issue in stack.c. - RT
5428	   */
5429	  SYMBOL_INIT_DEMANGLED_NAME (sym, &objfile->objfile_obstack);
5430
5431	  if ((DEPRECATED_SYMBOL_NAME (sym) == VT (objfile) + dn_bufp->ddocfunc.alias) &&
5432	      (!SYMBOL_CPLUS_DEMANGLED_NAME (sym)))
5433	    {
5434
5435	      /* Well, the symbol name is mangled, but the
5436	       * demangler in libiberty failed so the demangled
5437	       * field is still NULL. Try to
5438	       * do the job ourselves based on the "name" field
5439	       * in the SOM record. A complication here is that
5440	       * the name field contains only the function name
5441	       * (like "f"), whereas we want the class qualification
5442	       * (as in "c::f"). Try to reconstruct that.
5443	       */
5444	      char *basename;
5445	      char *classname;
5446	      char *dem_name;
5447	      basename = VT (objfile) + dn_bufp->ddocfunc.name;
5448	      classname = class_of (SYMBOL_TYPE (sym));
5449	      if (classname)
5450		{
5451		  dem_name = xmalloc (strlen (basename) + strlen (classname) + 3);
5452		  strcpy (dem_name, classname);
5453		  strcat (dem_name, "::");
5454		  strcat (dem_name, basename);
5455		  SYMBOL_CPLUS_DEMANGLED_NAME (sym) = dem_name;
5456		  SYMBOL_LANGUAGE (sym) = language_cplus;
5457		}
5458	    }
5459	}
5460
5461      /* Add the function symbol to the list of symbols in this blockvector */
5462      if (dn_bufp->ddocfunc.global)
5463	add_symbol_to_list (sym, &global_symbols);
5464      else
5465	add_symbol_to_list (sym, &file_symbols);
5466      new->name = sym;
5467
5468      /* Search forward to the next BEGIN and also read
5469       * in the line info up to that point.
5470       * Not sure why this is needed.
5471       * In HP FORTRAN this code is harmful since there
5472       * may not be a BEGIN after the FUNCTION.
5473       * So I made it C/C++ specific. - RT
5474       */
5475      if (dn_bufp->ddocfunc.language == HP_LANGUAGE_C ||
5476	  dn_bufp->ddocfunc.language == HP_LANGUAGE_CPLUSPLUS)
5477	{
5478	  while (dn_bufp->dblock.kind != DNTT_TYPE_BEGIN)
5479	    {
5480	      dn_bufp = hpread_get_lntt (++index, objfile);
5481	      if (dn_bufp->dblock.extension)
5482		continue;
5483	    }
5484	  SL_INDEX (objfile) = hpread_record_lines (current_subfile,
5485						    SL_INDEX (objfile),
5486						    dn_bufp->dbegin.address,
5487						    objfile, offset);
5488	  SYMBOL_LINE (sym) = hpread_get_line (dn_bufp->dbegin.address, objfile);
5489	}
5490      record_line (current_subfile, SYMBOL_LINE (sym), valu);
5491      break;
5492
5493    case DNTT_TYPE_BEGIN:
5494      /* Begin a new scope. */
5495      if (context_stack_depth == 1 /* this means we're at function level */  &&
5496	  context_stack[0].name != NULL /* this means it's a function */  &&
5497	  context_stack[0].depth == 0	/* this means it's the first BEGIN
5498					   we've seen after the FUNCTION */
5499	)
5500	{
5501	  /* This is the first BEGIN after a FUNCTION.
5502	   * We ignore this one, since HP compilers always insert
5503	   * at least one BEGIN, i.e. it's:
5504	   *
5505	   *     FUNCTION
5506	   *     argument symbols
5507	   *     BEGIN
5508	   *     local symbols
5509	   *        (possibly nested BEGIN ... END's if there are inner { } blocks)
5510	   *     END
5511	   *     END
5512	   *
5513	   * By ignoring this first BEGIN, the local symbols get treated
5514	   * as belonging to the function scope, and "print func::local_sym"
5515	   * works (which is what we want).
5516	   */
5517
5518	  /* All we do here is increase the depth count associated with
5519	   * the FUNCTION entry in the context stack. This ensures that
5520	   * the next BEGIN we see (if any), representing a real nested { }
5521	   * block, will get processed.
5522	   */
5523
5524	  context_stack[0].depth++;
5525
5526	}
5527      else
5528	{
5529
5530	  /* Record lines up to this SLT pointer. */
5531	  SL_INDEX (objfile) = hpread_record_lines (current_subfile,
5532						    SL_INDEX (objfile),
5533						    dn_bufp->dbegin.address,
5534						    objfile, offset);
5535	  /* Calculate start address of new scope */
5536	  valu = hpread_get_location (dn_bufp->dbegin.address, objfile);
5537	  valu += offset;	/* Relocate for dynamic loading */
5538	  /* We use the scope start DNTT index as nesting depth identifier! */
5539	  desc = hpread_get_scope_start (dn_bufp->dbegin.address, objfile);
5540	  new = push_context (desc, valu);
5541	}
5542      break;
5543
5544    case DNTT_TYPE_END:
5545      /* End a scope.  */
5546
5547      /* Valid end kinds are:
5548       *  MODULE
5549       *  FUNCTION
5550       *  WITH
5551       *  COMMON
5552       *  BEGIN
5553       *  CLASS_SCOPE
5554       */
5555
5556      SL_INDEX (objfile) = hpread_record_lines (current_subfile,
5557						SL_INDEX (objfile),
5558						dn_bufp->dend.address,
5559						objfile, offset);
5560      switch (dn_bufp->dend.endkind)
5561	{
5562	case DNTT_TYPE_MODULE:
5563	  /* Ending a module ends the symbol table for that module.
5564	   * Calling end_symtab() has the side effect of clearing the
5565	   * last_source_file pointer, which in turn signals
5566	   * process_one_debug_symbol() to treat the next DNTT_TYPE_SRCFILE
5567	   * record as a module-begin.
5568	   */
5569	  valu = text_offset + text_size + offset;
5570
5571	  /* Tell our caller that we're done with expanding the
5572	   * debug information for a module.
5573	   */
5574	  *at_module_boundary_p = 1;
5575
5576	  /* Don't do this, as our caller will do it!
5577
5578	   *      (void) end_symtab (valu, objfile, 0);
5579	   */
5580	  break;
5581
5582	case DNTT_TYPE_FUNCTION:
5583	  /* Ending a function, well, ends the function's scope.  */
5584	  dn_temp = hpread_get_lntt (dn_bufp->dend.beginscope.dnttp.index,
5585				     objfile);
5586	  valu = dn_temp->dfunc.hiaddr + offset;
5587	  /* Insert func params into local list */
5588	  merge_symbol_lists (&param_symbols, &local_symbols);
5589	  new = pop_context ();
5590	  /* Make a block for the local symbols within.  */
5591	  finish_block (new->name, &local_symbols, new->old_blocks,
5592			new->start_addr, valu, objfile);
5593	  WITHIN_FUNCTION (objfile) = 0;	/* This may have to change for Pascal */
5594	  local_symbols = new->locals;
5595	  param_symbols = new->params;
5596	  break;
5597
5598	case DNTT_TYPE_BEGIN:
5599	  if (context_stack_depth == 1 &&
5600	      context_stack[0].name != NULL &&
5601	      context_stack[0].depth == 1)
5602	    {
5603	      /* This is the END corresponding to the
5604	       * BEGIN which we ignored - see DNTT_TYPE_BEGIN case above.
5605	       */
5606	      context_stack[0].depth--;
5607	    }
5608	  else
5609	    {
5610	      /* Ending a local scope.  */
5611	      valu = hpread_get_location (dn_bufp->dend.address, objfile);
5612	      /* Why in the hell is this needed?  */
5613	      valu += offset + 9;	/* Relocate for dynamic loading */
5614	      new = pop_context ();
5615	      desc = dn_bufp->dend.beginscope.dnttp.index;
5616	      if (desc != new->depth)
5617		lbrac_mismatch_complaint (symnum);
5618
5619	      /* Make a block for the local symbols within.  */
5620	      finish_block (new->name, &local_symbols, new->old_blocks,
5621			    new->start_addr, valu, objfile);
5622	      local_symbols = new->locals;
5623	      param_symbols = new->params;
5624	    }
5625	  break;
5626
5627	case DNTT_TYPE_WITH:
5628	  /* Since we ignore the DNTT_TYPE_WITH that starts the scope,
5629	   * we can ignore the DNTT_TYPE_END that ends it.
5630	   */
5631	  break;
5632
5633	case DNTT_TYPE_COMMON:
5634	  /* End a FORTRAN common block. We don't currently handle these */
5635	  complaint (&symfile_complaints,
5636		     "unhandled symbol in hp-symtab-read.c: DNTT_TYPE_COMMON/DNTT_TYPE_END.\n");
5637	  break;
5638
5639	case DNTT_TYPE_CLASS_SCOPE:
5640
5641	  /* pai: FIXME Not handling nested classes for now -- must
5642	     * maintain a stack */
5643	  class_scope_name = NULL;
5644
5645#if 0
5646	  /* End a class scope */
5647	  valu = hpread_get_location (dn_bufp->dend.address, objfile);
5648	  /* Why in the hell is this needed?  */
5649	  valu += offset + 9;	/* Relocate for dynamic loading */
5650	  new = pop_context ();
5651	  desc = dn_bufp->dend.beginscope.dnttp.index;
5652	  if (desc != new->depth)
5653	    lbrac_mismatch_complaint ((char *) symnum);
5654	  /* Make a block for the local symbols within.  */
5655	  finish_block (new->name, &local_symbols, new->old_blocks,
5656			new->start_addr, valu, objfile);
5657	  local_symbols = new->locals;
5658	  param_symbols = new->params;
5659#endif
5660	  break;
5661
5662	default:
5663	  complaint (&symfile_complaints,
5664		     "internal error in hp-symtab-read.c: Unexpected DNTT_TYPE_END kind.");
5665	  break;
5666	}
5667      break;
5668
5669      /* DNTT_TYPE_IMPORT is not handled */
5670
5671    case DNTT_TYPE_LABEL:
5672      SYMBOL_DOMAIN (sym) = LABEL_DOMAIN;
5673      break;
5674
5675    case DNTT_TYPE_FPARAM:
5676      /* Function parameters.  */
5677      /* Note 1: This code was present in the 4.16 sources, and then
5678         removed, because fparams are handled in
5679         hpread_read_function_type().  However, while fparam symbols
5680         are indeed handled twice, this code here cannot be removed
5681         because then they don't get added to the local symbol list of
5682         the function's code block, which leads to a failure to look
5683         up locals, "this"-relative member names, etc.  So I've put
5684         this code back in. pai/1997-07-21 */
5685      /* Note 2: To fix a defect, we stopped adding FPARAMS to local_symbols
5686         in hpread_read_function_type(), so FPARAMS had to be handled
5687         here.  I changed the location to be the appropriate argument
5688         kinds rather than LOC_LOCAL. pai/1997-08-08 */
5689      /* Note 3: Well, the fix in Note 2 above broke argument printing
5690         in traceback frames, and further it makes assumptions about the
5691         order of the FPARAM entries from HP compilers (cc and aCC in particular
5692         generate them in reverse orders -- fixing one breaks for the other).
5693         So I've added code in hpread_read_function_type() to add fparams
5694         to a param_symbols list for the current context level.  These are
5695         then merged into local_symbols when a function end is reached.
5696         pai/1997-08-11 */
5697
5698      break;			/* do nothing; handled in hpread_read_function_type() */
5699
5700#if 0				/* Old code */
5701      if (dn_bufp->dfparam.regparam)
5702	SYMBOL_CLASS (sym) = LOC_REGISTER;
5703      else if (dn_bufp->dfparam.indirect)
5704	SYMBOL_CLASS (sym) = LOC_REF_ARG;
5705      else
5706	SYMBOL_CLASS (sym) = LOC_ARG;
5707      SYMBOL_DOMAIN (sym) = VAR_DOMAIN;
5708      if (dn_bufp->dfparam.copyparam)
5709	{
5710	  SYMBOL_VALUE (sym) = dn_bufp->dfparam.location;
5711	  SYMBOL_VALUE (sym)
5712	    += hpread_adjust_stack_address (CURRENT_FUNCTION_VALUE (objfile));
5713	}
5714      else
5715	SYMBOL_VALUE (sym) = dn_bufp->dfparam.location;
5716      SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dfparam.type, objfile);
5717      add_symbol_to_list (sym, &fparam_symbols);
5718      break;
5719#endif
5720
5721    case DNTT_TYPE_SVAR:
5722      /* Static variables.  */
5723      SYMBOL_CLASS (sym) = LOC_STATIC;
5724
5725      /* Note: There is a case that arises with globals in shared
5726       * libraries where we need to set the address to LOC_INDIRECT.
5727       * This case is if you have a global "g" in one library, and
5728       * it is referenced "extern <type> g;" in another library.
5729       * If we're processing the symbols for the referencing library,
5730       * we'll see a global "g", but in this case the address given
5731       * in the symbol table contains a pointer to the real "g".
5732       * We use the storage class LOC_INDIRECT to indicate this. RT
5733       */
5734      if (is_in_import_list (DEPRECATED_SYMBOL_NAME (sym), objfile))
5735	SYMBOL_CLASS (sym) = LOC_INDIRECT;
5736
5737      SYMBOL_VALUE_ADDRESS (sym) = dn_bufp->dsvar.location + data_offset;
5738      SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dsvar.type, objfile);
5739
5740      if (dn_bufp->dsvar.global)
5741	add_symbol_to_list (sym, &global_symbols);
5742
5743      else if (WITHIN_FUNCTION (objfile))
5744	add_symbol_to_list (sym, &local_symbols);
5745
5746      else
5747	add_symbol_to_list (sym, &file_symbols);
5748
5749      if (dn_bufp->dsvar.thread_specific)
5750	{
5751	  /* Thread-local variable.
5752	   */
5753	  SYMBOL_CLASS (sym) = LOC_HP_THREAD_LOCAL_STATIC;
5754	  SYMBOL_BASEREG (sym) = HPPA_CR27_REGNUM;
5755
5756	  if (objfile->flags & OBJF_SHARED)
5757	    {
5758	      /*
5759	       * This variable is not only thread local but
5760	       * in a shared library.
5761	       *
5762	       * Alas, the shared lib structures are private
5763	       * to "somsolib.c".  But C lets us point to one.
5764	       */
5765	      struct so_list *so;
5766              struct hppa_objfile_private *priv;
5767
5768              priv = (struct hppa_objfile_private *)
5769	        objfile_data (objfile, hppa_objfile_priv_data);
5770	      if (priv == NULL)
5771		error ("Internal error in reading shared library information.");
5772
5773	      so = ((struct hppa_objfile_private *) priv)->so_info;
5774	      if (so == NULL)
5775		error ("Internal error in reading shared library information.");
5776
5777	      /* Thread-locals in shared libraries do NOT have the
5778	       * standard offset ("data_offset"), so we re-calculate
5779	       * where to look for this variable, using a call-back
5780	       * to interpret the private shared-library data.
5781	       */
5782	      SYMBOL_VALUE_ADDRESS (sym) = dn_bufp->dsvar.location +
5783		so_lib_thread_start_addr (so);
5784	    }
5785	}
5786      break;
5787
5788    case DNTT_TYPE_DVAR:
5789      /* Dynamic variables.  */
5790      if (dn_bufp->ddvar.regvar)
5791	SYMBOL_CLASS (sym) = LOC_REGISTER;
5792      else
5793	SYMBOL_CLASS (sym) = LOC_LOCAL;
5794
5795      SYMBOL_VALUE (sym) = dn_bufp->ddvar.location;
5796      SYMBOL_VALUE (sym)
5797	+= hpread_adjust_stack_address (CURRENT_FUNCTION_VALUE (objfile));
5798      SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->ddvar.type, objfile);
5799      if (dn_bufp->ddvar.global)
5800	add_symbol_to_list (sym, &global_symbols);
5801      else if (WITHIN_FUNCTION (objfile))
5802	add_symbol_to_list (sym, &local_symbols);
5803      else
5804	add_symbol_to_list (sym, &file_symbols);
5805      break;
5806
5807    case DNTT_TYPE_CONST:
5808      /* A constant (pascal?).  */
5809      SYMBOL_CLASS (sym) = LOC_CONST;
5810      SYMBOL_VALUE (sym) = dn_bufp->dconst.location;
5811      SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dconst.type, objfile);
5812      if (dn_bufp->dconst.global)
5813	add_symbol_to_list (sym, &global_symbols);
5814      else if (WITHIN_FUNCTION (objfile))
5815	add_symbol_to_list (sym, &local_symbols);
5816      else
5817	add_symbol_to_list (sym, &file_symbols);
5818      break;
5819
5820    case DNTT_TYPE_TYPEDEF:
5821      /* A typedef. We do want to process these, since a name is
5822       * added to the domain for the typedef'ed name.
5823       */
5824      SYMBOL_DOMAIN (sym) = VAR_DOMAIN;
5825      SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dtype.type, objfile);
5826      if (dn_bufp->dtype.global)
5827	add_symbol_to_list (sym, &global_symbols);
5828      else if (WITHIN_FUNCTION (objfile))
5829	add_symbol_to_list (sym, &local_symbols);
5830      else
5831	add_symbol_to_list (sym, &file_symbols);
5832      break;
5833
5834    case DNTT_TYPE_TAGDEF:
5835      {
5836	int global = dn_bufp->dtag.global;
5837	/* Structure, union, enum, template, or class tag definition */
5838	/* We do want to process these, since a name is
5839	 * added to the domain for the tag name (and if C++ class,
5840	 * for the typename also).
5841	 */
5842	SYMBOL_DOMAIN (sym) = STRUCT_DOMAIN;
5843
5844	/* The tag contains in its "type" field a pointer to the
5845	 * DNTT_TYPE_STRUCT, DNTT_TYPE_UNION, DNTT_TYPE_ENUM,
5846	 * DNTT_TYPE_CLASS or DNTT_TYPE_TEMPLATE
5847	 * record that actually defines the type.
5848	 */
5849	SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dtype.type, objfile);
5850	TYPE_NAME (sym->type) = DEPRECATED_SYMBOL_NAME (sym);
5851	TYPE_TAG_NAME (sym->type) = DEPRECATED_SYMBOL_NAME (sym);
5852	if (dn_bufp->dtag.global)
5853	  add_symbol_to_list (sym, &global_symbols);
5854	else if (WITHIN_FUNCTION (objfile))
5855	  add_symbol_to_list (sym, &local_symbols);
5856	else
5857	  add_symbol_to_list (sym, &file_symbols);
5858
5859	/* If this is a C++ class, then we additionally
5860	 * need to define a typedef for the
5861	 * class type. E.g., so that the name "c" becomes visible as
5862	 * a type name when the user says "class c { ... }".
5863	 * In order to figure this out, we need to chase down the "type"
5864	 * field to get to the DNTT_TYPE_CLASS record.
5865	 *
5866	 * We also add the typename for ENUM. Though this isn't
5867	 * strictly correct, it is necessary because of the debug info
5868	 * generated by the aCC compiler, in which we cannot
5869	 * distinguish between:
5870	 *   enum e { ... };
5871	 * and
5872	 *   typedef enum { ... } e;
5873	 * I.e., the compiler emits the same debug info for the above
5874	 * two cases, in both cases "e" appearing as a tagdef.
5875	 * Therefore go ahead and generate the typename so that
5876	 * "ptype e" will work in the above cases.
5877	 *
5878	 * We also add the typename for TEMPLATE, so as to allow "ptype t"
5879	 * when "t" is a template name.
5880	 */
5881	if (dn_bufp->dtype.type.dnttp.index < LNTT_SYMCOUNT (objfile))
5882	  dn_bufp = hpread_get_lntt (dn_bufp->dtag.type.dnttp.index, objfile);
5883	else
5884	  {
5885	    complaint (&symfile_complaints, "error processing class tagdef");
5886	    return;
5887	  }
5888	if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS ||
5889	    dn_bufp->dblock.kind == DNTT_TYPE_ENUM ||
5890	    dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE)
5891	  {
5892	    struct symbol *newsym;
5893
5894	    newsym = (struct symbol *) obstack_alloc (&objfile->objfile_obstack,
5895						    sizeof (struct symbol));
5896	    memset (newsym, 0, sizeof (struct symbol));
5897	    DEPRECATED_SYMBOL_NAME (newsym) = name;
5898	    SYMBOL_LANGUAGE (newsym) = language_auto;
5899	    SYMBOL_DOMAIN (newsym) = VAR_DOMAIN;
5900	    SYMBOL_LINE (newsym) = 0;
5901	    SYMBOL_VALUE (newsym) = 0;
5902	    SYMBOL_CLASS (newsym) = LOC_TYPEDEF;
5903	    SYMBOL_TYPE (newsym) = sym->type;
5904	    if (global)
5905	      add_symbol_to_list (newsym, &global_symbols);
5906	    else if (WITHIN_FUNCTION (objfile))
5907	      add_symbol_to_list (newsym, &local_symbols);
5908	    else
5909	      add_symbol_to_list (newsym, &file_symbols);
5910	  }
5911      }
5912      break;
5913
5914    case DNTT_TYPE_POINTER:
5915      /* Declares a pointer type. Should not be necessary to do anything
5916       * with the type at this level; these are processed
5917       * at the hpread_type_lookup() level.
5918       */
5919      break;
5920
5921    case DNTT_TYPE_ENUM:
5922      /* Declares an enum type. Should not be necessary to do anything
5923       * with the type at this level; these are processed
5924       * at the hpread_type_lookup() level.
5925       */
5926      break;
5927
5928    case DNTT_TYPE_MEMENUM:
5929      /* Member of enum */
5930      /* Ignored at this level, but hpread_read_enum_type() will take
5931       * care of walking the list of enumeration members.
5932       */
5933      break;
5934
5935    case DNTT_TYPE_SET:
5936      /* Declares a set type. Should not be necessary to do anything
5937       * with the type at this level; these are processed
5938       * at the hpread_type_lookup() level.
5939       */
5940      break;
5941
5942    case DNTT_TYPE_SUBRANGE:
5943      /* Declares a subrange type. Should not be necessary to do anything
5944       * with the type at this level; these are processed
5945       * at the hpread_type_lookup() level.
5946       */
5947      break;
5948
5949    case DNTT_TYPE_ARRAY:
5950      /* Declares an array type. Should not be necessary to do anything
5951       * with the type at this level; these are processed
5952       * at the hpread_type_lookup() level.
5953       */
5954      break;
5955
5956    case DNTT_TYPE_STRUCT:
5957    case DNTT_TYPE_UNION:
5958      /* Declares an struct/union type.
5959       * Should not be necessary to do anything
5960       * with the type at this level; these are processed
5961       * at the hpread_type_lookup() level.
5962       */
5963      break;
5964
5965    case DNTT_TYPE_FIELD:
5966      /* Structure/union/class field */
5967      /* Ignored at this level, but hpread_read_struct_type() will take
5968       * care of walking the list of structure/union/class members.
5969       */
5970      break;
5971
5972      /* DNTT_TYPE_VARIANT is not handled by GDB */
5973
5974      /* DNTT_TYPE_FILE is not handled by GDB */
5975
5976    case DNTT_TYPE_FUNCTYPE:
5977      /* Function type */
5978      /* Ignored at this level, handled within hpread_type_lookup() */
5979      break;
5980
5981    case DNTT_TYPE_WITH:
5982      /* This is emitted within methods to indicate "with <class>"
5983       * scoping rules (i.e., indicate that the class data members
5984       * are directly visible).
5985       * However, since GDB already infers this by looking at the
5986       * "this" argument, interpreting the DNTT_TYPE_WITH
5987       * symbol record is unnecessary.
5988       */
5989      break;
5990
5991    case DNTT_TYPE_COMMON:
5992      /* FORTRAN common. Not yet handled. */
5993      complaint (&symfile_complaints,
5994		 "unhandled symbol in hp-symtab-read.c: DNTT_TYPE_COMMON.");
5995      break;
5996
5997      /* DNTT_TYPE_COBSTRUCT is not handled by GDB.  */
5998      /* DNTT_TYPE_XREF is not handled by GDB.  */
5999      /* DNTT_TYPE_SA is not handled by GDB.  */
6000      /* DNTT_TYPE_MACRO is not handled by GDB */
6001
6002    case DNTT_TYPE_BLOCKDATA:
6003      /* Not sure what this is - part of FORTRAN support maybe?
6004       * Anyway, not yet handled.
6005       */
6006      complaint (&symfile_complaints,
6007		 "unhandled symbol in hp-symtab-read.c: DNTT_TYPE_BLOCKDATA.");
6008      break;
6009
6010    case DNTT_TYPE_CLASS_SCOPE:
6011
6012
6013
6014      /* The compiler brackets member functions with a CLASS_SCOPE/END
6015       * pair of records, presumably to put them in a different scope
6016       * from the module scope where they are normally defined.
6017       * E.g., in the situation:
6018       *   void f() { ... }
6019       *   void c::f() { ...}
6020       * The member function "c::f" will be bracketed by a CLASS_SCOPE/END.
6021       * This causes "break f" at the module level to pick the
6022       * the file-level function f(), not the member function
6023       * (which needs to be referenced via "break c::f").
6024       *
6025       * Here we record the class name to generate the demangled names of
6026       * member functions later.
6027       *
6028       * FIXME Not being used now for anything -- cplus_demangle seems
6029       * enough for getting the class-qualified names of functions. We
6030       * may need this for handling nested classes and types.  */
6031
6032      /* pai: FIXME Not handling nested classes for now -- need to
6033       * maintain a stack */
6034
6035      dn_temp = hpread_get_lntt (dn_bufp->dclass_scope.type.dnttp.index, objfile);
6036      if (dn_temp->dblock.kind == DNTT_TYPE_TAGDEF)
6037	class_scope_name = VT (objfile) + dn_temp->dtag.name;
6038      else
6039	class_scope_name = NULL;
6040
6041#if 0
6042
6043      /* Begin a new scope.  */
6044      SL_INDEX (objfile) = hpread_record_lines (current_subfile,
6045						SL_INDEX (objfile),
6046					      dn_bufp->dclass_scope.address,
6047						objfile, offset);
6048      valu = hpread_get_location (dn_bufp->dclass_scope.address, objfile);
6049      valu += offset;		/* Relocate for dynamic loading */
6050      desc = hpread_get_scope_start (dn_bufp->dclass_scope.address, objfile);
6051      /* We use the scope start DNTT index as the nesting depth identifier! */
6052      new = push_context (desc, valu);
6053#endif
6054      break;
6055
6056    case DNTT_TYPE_REFERENCE:
6057      /* Declares a C++ reference type. Should not be necessary to do anything
6058       * with the type at this level; these are processed
6059       * at the hpread_type_lookup() level.
6060       */
6061      break;
6062
6063    case DNTT_TYPE_PTRMEM:
6064      /* Declares a C++ pointer-to-data-member type. This does not
6065       * need to be handled at this level; being a type description it
6066       * is instead handled at the hpread_type_lookup() level.
6067       */
6068      break;
6069
6070    case DNTT_TYPE_PTRMEMFUNC:
6071      /* Declares a C++ pointer-to-function-member type. This does not
6072       * need to be handled at this level; being a type description it
6073       * is instead handled at the hpread_type_lookup() level.
6074       */
6075      break;
6076
6077    case DNTT_TYPE_CLASS:
6078      /* Declares a class type.
6079       * Should not be necessary to do anything
6080       * with the type at this level; these are processed
6081       * at the hpread_type_lookup() level.
6082       */
6083      break;
6084
6085    case DNTT_TYPE_GENFIELD:
6086      /* I believe this is used for class member functions */
6087      /* Ignored at this level, but hpread_read_struct_type() will take
6088       * care of walking the list of class members.
6089       */
6090      break;
6091
6092    case DNTT_TYPE_VFUNC:
6093      /* Virtual function */
6094      /* This does not have to be handled at this level; handled in
6095       * the course of processing class symbols.
6096       */
6097      break;
6098
6099    case DNTT_TYPE_MEMACCESS:
6100      /* DDE ignores this symbol table record.
6101       * It has something to do with "modified access" to class members.
6102       * I'll assume we can safely ignore it too.
6103       */
6104      break;
6105
6106    case DNTT_TYPE_INHERITANCE:
6107      /* These don't have to be handled here, since they are handled
6108       * within hpread_read_struct_type() in the process of constructing
6109       * a class type.
6110       */
6111      break;
6112
6113    case DNTT_TYPE_FRIEND_CLASS:
6114    case DNTT_TYPE_FRIEND_FUNC:
6115      /* These can safely be ignored, as GDB doesn't need this
6116       * info. DDE only uses it in "describe". We may later want
6117       * to extend GDB's "ptype" to give this info, but for now
6118       * it seems safe enough to ignore it.
6119       */
6120      break;
6121
6122    case DNTT_TYPE_MODIFIER:
6123      /* Intended to supply "modified access" to a type */
6124      /* From the way DDE handles this, it looks like it always
6125       * modifies a type. Therefore it is safe to ignore it at this
6126       * level, and handle it in hpread_type_lookup().
6127       */
6128      break;
6129
6130    case DNTT_TYPE_OBJECT_ID:
6131      /* Just ignore this - that's all DDE does */
6132      break;
6133
6134    case DNTT_TYPE_MEMFUNC:
6135      /* Member function */
6136      /* This does not have to be handled at this level; handled in
6137       * the course of processing class symbols.
6138       */
6139      break;
6140
6141    case DNTT_TYPE_DOC_MEMFUNC:
6142      /* Member function */
6143      /* This does not have to be handled at this level; handled in
6144       * the course of processing class symbols.
6145       */
6146      break;
6147
6148    case DNTT_TYPE_TEMPLATE:
6149      /* Template - sort of the header for a template definition,
6150       * which like a class, points to a member list and also points
6151       * to a TEMPLATE_ARG list of type-arguments.
6152       * We do not need to process TEMPLATE records at this level though.
6153       */
6154      break;
6155
6156    case DNTT_TYPE_TEMPLATE_ARG:
6157      /* The TEMPLATE record points to an argument list of
6158       * TEMPLATE_ARG records, each of which describes one
6159       * of the type-arguments.
6160       * We do not need to process TEMPLATE_ARG records at this level though.
6161       */
6162      break;
6163
6164    case DNTT_TYPE_FUNC_TEMPLATE:
6165      /* This will get emitted for member functions of templates.
6166       * But we don't need to process this record at this level though,
6167       * we will process it in the course of processing a TEMPLATE
6168       * record.
6169       */
6170      break;
6171
6172    case DNTT_TYPE_LINK:
6173      /* The LINK record is used to link up templates with instantiations. */
6174      /* It is not clear why this is needed, and furthermore aCC does
6175       * not appear to generate this, so I think we can safely ignore it. - RT
6176       */
6177      break;
6178
6179      /* DNTT_TYPE_DYN_ARRAY_DESC is not handled by GDB */
6180      /* DNTT_TYPE_DESC_SUBRANGE is not handled by GDB */
6181      /* DNTT_TYPE_BEGIN_EXT is not handled by GDB */
6182      /* DNTT_TYPE_INLN is not handled by GDB */
6183      /* DNTT_TYPE_INLN_LIST is not handled by GDB */
6184      /* DNTT_TYPE_ALIAS is not handled by GDB */
6185
6186    default:
6187      break;
6188    }
6189}
6190
6191/* Get nesting depth for a DNTT entry.
6192 * DN_BUFP points to a DNTT entry.
6193 * OBJFILE is the object file.
6194 * REPORT_NESTED is a flag; if 0, real nesting depth is
6195 * reported, if it is 1, the function simply returns a
6196 * non-zero value if the nesting depth is anything > 0.
6197 *
6198 * Return value is an integer.  0 => not a local type / name
6199 * positive return => type or name is local to some
6200 * block or function.
6201 */
6202
6203
6204/* elz: ATTENTION: FIXME: NOTE: WARNING!!!!
6205   this function now returns 0 right away. It was taking too much time
6206   at start up. Now, though, the local types are not handled correctly.
6207 */
6208
6209
6210static int
6211hpread_get_scope_depth (union dnttentry *dn_bufp, struct objfile *objfile,
6212			int report_nested)
6213{
6214  int index;
6215  union dnttentry *dn_tmp;
6216  short depth = 0;
6217/****************************/
6218  return 0;
6219/****************************/
6220
6221  index = (((char *) dn_bufp) - LNTT (objfile)) / (sizeof (struct dntt_type_block));
6222
6223  while (--index >= 0)
6224    {
6225      dn_tmp = hpread_get_lntt (index, objfile);
6226      switch (dn_tmp->dblock.kind)
6227	{
6228	case DNTT_TYPE_MODULE:
6229	  return depth;
6230	case DNTT_TYPE_END:
6231	  /* index is signed int; dnttp.index is 29-bit unsigned int! */
6232	  index = (int) dn_tmp->dend.beginscope.dnttp.index;
6233	  break;
6234	case DNTT_TYPE_BEGIN:
6235	case DNTT_TYPE_FUNCTION:
6236	case DNTT_TYPE_DOC_FUNCTION:
6237	case DNTT_TYPE_WITH:
6238	case DNTT_TYPE_COMMON:
6239	case DNTT_TYPE_CLASS_SCOPE:
6240	  depth++;
6241	  if (report_nested)
6242	    return 1;
6243	  break;
6244	default:
6245	  break;
6246	}
6247    }
6248  return depth;
6249}
6250
6251/* Adjust the bitoffsets for all fields of an anonymous union of
6252   type TYPE by negative BITS.  This handles HP aCC's hideous habit
6253   of giving members of anonymous unions bit offsets relative to the
6254   enclosing structure instead of relative to the union itself. */
6255
6256static void
6257hpread_adjust_bitoffsets (struct type *type, int bits)
6258{
6259  int i;
6260
6261  /* This is done only for unions; caller had better check that
6262     it is an anonymous one. */
6263  if (TYPE_CODE (type) != TYPE_CODE_UNION)
6264    return;
6265
6266  /* Adjust each field; since this is a union, there are no base
6267     classes. Also no static membes.  Also, no need for recursion as
6268     the members of this union if themeselves structs or unions, have
6269     the correct bitoffsets; if an anonymous union is a member of this
6270     anonymous union, the code in hpread_read_struct_type() will
6271     adjust for that. */
6272
6273  for (i = 0; i < TYPE_NFIELDS (type); i++)
6274    TYPE_FIELD_BITPOS (type, i) -= bits;
6275}
6276
6277/* Return the adjustment necessary to make for addresses on the stack
6278   as presented by hpread.c.
6279
6280   This is necessary because of the stack direction on the PA and the
6281   bizarre way in which someone (?) decided they wanted to handle
6282   frame pointerless code in GDB.  */
6283int
6284hpread_adjust_stack_address (CORE_ADDR func_addr)
6285{
6286  struct unwind_table_entry *u;
6287
6288  u = find_unwind_entry (func_addr);
6289  if (!u)
6290    return 0;
6291  else
6292    return u->Total_frame_size << 3;
6293}
6294
6295/* Because of quirks in HP compilers' treatment of anonymous unions inside
6296   classes, we have to chase through a chain of threaded FIELD entries.
6297   If we encounter an anonymous union in the chain, we must recursively skip over
6298   that too.
6299
6300   This function does a "next" in the chain of FIELD entries, but transparently
6301   skips over anonymous unions' fields (recursively).
6302
6303   Inputs are the number of times to do "next" at the top level, the dnttpointer
6304   (FIELD) and entry pointer (FIELDP) for the dntt record corresponding to it,
6305   and the ubiquitous objfile parameter. (Note: FIELDP is a **.)  Return value
6306   is a dnttpointer for the new field after all the skipped ones */
6307
6308static dnttpointer
6309hpread_get_next_skip_over_anon_unions (int skip_fields, dnttpointer field,
6310				       union dnttentry **fieldp,
6311				       struct objfile *objfile)
6312{
6313  struct type *anon_type;
6314  int i;
6315  int bitoffset;
6316  char *name;
6317
6318  for (i = 0; i < skip_fields; i++)
6319    {
6320      /* Get type of item we're looking at now; recursively processes the types
6321         of these intermediate items we skip over, so they aren't lost. */
6322      anon_type = hpread_type_lookup ((*fieldp)->dfield.type, objfile);
6323      anon_type = CHECK_TYPEDEF (anon_type);
6324      bitoffset = (*fieldp)->dfield.bitoffset;
6325      name = VT (objfile) + (*fieldp)->dfield.name;
6326      /* First skip over one item to avoid stack death on recursion */
6327      field = (*fieldp)->dfield.nextfield;
6328      *fieldp = hpread_get_lntt (field.dnttp.index, objfile);
6329      /* Do we have another anonymous union? If so, adjust the bitoffsets
6330         of its members and skip over its members. */
6331      if ((TYPE_CODE (anon_type) == TYPE_CODE_UNION) &&
6332	  (!name || DEPRECATED_STREQ (name, "")))
6333	{
6334	  hpread_adjust_bitoffsets (anon_type, bitoffset);
6335	  field = hpread_get_next_skip_over_anon_unions (TYPE_NFIELDS (anon_type), field, fieldp, objfile);
6336	}
6337    }
6338  return field;
6339}
6340