1 /* ieee.c -- Read and write IEEE-695 debugging information.
2    Copyright 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2006
3    Free Software Foundation, Inc.
4    Written by Ian Lance Taylor <ian@cygnus.com>.
5 
6    This file is part of GNU Binutils.
7 
8    This program is free software; you can redistribute it and/or modify
9    it under the terms of the GNU General Public License as published by
10    the Free Software Foundation; either version 2 of the License, or
11    (at your option) any later version.
12 
13    This program is distributed in the hope that it will be useful,
14    but WITHOUT ANY WARRANTY; without even the implied warranty of
15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16    GNU General Public License for more details.
17 
18    You should have received a copy of the GNU General Public License
19    along with this program; if not, write to the Free Software
20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
21    02110-1301, USA.  */
22 
23 /* This file reads and writes IEEE-695 debugging information.  */
24 
25 #include <stdio.h>
26 #include <assert.h>
27 
28 #include "bfd.h"
29 #include "ieee.h"
30 #include "bucomm.h"
31 #include "libiberty.h"
32 #include "debug.h"
33 #include "budbg.h"
34 #include "filenames.h"
35 
36 /* This structure holds an entry on the block stack.  */
37 
38 struct ieee_block
39 {
40   /* The kind of block.  */
41   int kind;
42   /* The source file name, for a BB5 block.  */
43   const char *filename;
44   /* The index of the function type, for a BB4 or BB6 block.  */
45   unsigned int fnindx;
46   /* TRUE if this function is being skipped.  */
47   bfd_boolean skip;
48 };
49 
50 /* This structure is the block stack.  */
51 
52 #define BLOCKSTACK_SIZE (16)
53 
54 struct ieee_blockstack
55 {
56   /* The stack pointer.  */
57   struct ieee_block *bsp;
58   /* The stack.  */
59   struct ieee_block stack[BLOCKSTACK_SIZE];
60 };
61 
62 /* This structure holds information for a variable.  */
63 
64 struct ieee_var
65 {
66   /* Start of name.  */
67   const char *name;
68   /* Length of name.  */
69   unsigned long namlen;
70   /* Type.  */
71   debug_type type;
72   /* Slot if we make an indirect type.  */
73   debug_type *pslot;
74   /* Kind of variable or function.  */
75   enum
76     {
77       IEEE_UNKNOWN,
78       IEEE_EXTERNAL,
79       IEEE_GLOBAL,
80       IEEE_STATIC,
81       IEEE_LOCAL,
82       IEEE_FUNCTION
83     } kind;
84 };
85 
86 /* This structure holds all the variables.  */
87 
88 struct ieee_vars
89 {
90   /* Number of slots allocated.  */
91   unsigned int alloc;
92   /* Variables.  */
93   struct ieee_var *vars;
94 };
95 
96 /* This structure holds information for a type.  We need this because
97    we don't want to represent bitfields as real types.  */
98 
99 struct ieee_type
100 {
101   /* Type.  */
102   debug_type type;
103   /* Slot if this is type is referenced before it is defined.  */
104   debug_type *pslot;
105   /* Slots for arguments if we make indirect types for them.  */
106   debug_type *arg_slots;
107   /* If this is a bitfield, this is the size in bits.  If this is not
108      a bitfield, this is zero.  */
109   unsigned long bitsize;
110 };
111 
112 /* This structure holds all the type information.  */
113 
114 struct ieee_types
115 {
116   /* Number of slots allocated.  */
117   unsigned int alloc;
118   /* Types.  */
119   struct ieee_type *types;
120   /* Builtin types.  */
121 #define BUILTIN_TYPE_COUNT (60)
122   debug_type builtins[BUILTIN_TYPE_COUNT];
123 };
124 
125 /* This structure holds a linked last of structs with their tag names,
126    so that we can convert them to C++ classes if necessary.  */
127 
128 struct ieee_tag
129 {
130   /* Next tag.  */
131   struct ieee_tag *next;
132   /* This tag name.  */
133   const char *name;
134   /* The type of the tag.  */
135   debug_type type;
136   /* The tagged type is an indirect type pointing at this slot.  */
137   debug_type slot;
138   /* This is an array of slots used when a field type is converted
139      into a indirect type, in case it needs to be later converted into
140      a reference type.  */
141   debug_type *fslots;
142 };
143 
144 /* This structure holds the information we pass around to the parsing
145    functions.  */
146 
147 struct ieee_info
148 {
149   /* The debugging handle.  */
150   void *dhandle;
151   /* The BFD.  */
152   bfd *abfd;
153   /* The start of the bytes to be parsed.  */
154   const bfd_byte *bytes;
155   /* The end of the bytes to be parsed.  */
156   const bfd_byte *pend;
157   /* The block stack.  */
158   struct ieee_blockstack blockstack;
159   /* Whether we have seen a BB1 or BB2.  */
160   bfd_boolean saw_filename;
161   /* The variables.  */
162   struct ieee_vars vars;
163   /* The global variables, after a global typedef block.  */
164   struct ieee_vars *global_vars;
165   /* The types.  */
166   struct ieee_types types;
167   /* The global types, after a global typedef block.  */
168   struct ieee_types *global_types;
169   /* The list of tagged structs.  */
170   struct ieee_tag *tags;
171 };
172 
173 /* Basic builtin types, not including the pointers.  */
174 
175 enum builtin_types
176 {
177   builtin_unknown = 0,
178   builtin_void = 1,
179   builtin_signed_char = 2,
180   builtin_unsigned_char = 3,
181   builtin_signed_short_int = 4,
182   builtin_unsigned_short_int = 5,
183   builtin_signed_long = 6,
184   builtin_unsigned_long = 7,
185   builtin_signed_long_long = 8,
186   builtin_unsigned_long_long = 9,
187   builtin_float = 10,
188   builtin_double = 11,
189   builtin_long_double = 12,
190   builtin_long_long_double = 13,
191   builtin_quoted_string = 14,
192   builtin_instruction_address = 15,
193   builtin_int = 16,
194   builtin_unsigned = 17,
195   builtin_unsigned_int = 18,
196   builtin_char = 19,
197   builtin_long = 20,
198   builtin_short = 21,
199   builtin_unsigned_short = 22,
200   builtin_short_int = 23,
201   builtin_signed_short = 24,
202   builtin_bcd_float = 25
203 };
204 
205 /* These are the values found in the derivation flags of a 'b'
206    component record of a 'T' type extension record in a C++ pmisc
207    record.  These are bitmasks.  */
208 
209 /* Set for a private base class, clear for a public base class.
210    Protected base classes are not supported.  */
211 #define BASEFLAGS_PRIVATE (0x1)
212 /* Set for a virtual base class.  */
213 #define BASEFLAGS_VIRTUAL (0x2)
214 /* Set for a friend class, clear for a base class.  */
215 #define BASEFLAGS_FRIEND (0x10)
216 
217 /* These are the values found in the specs flags of a 'd', 'm', or 'v'
218    component record of a 'T' type extension record in a C++ pmisc
219    record.  The same flags are used for a 'M' record in a C++ pmisc
220    record.  */
221 
222 /* The lower two bits hold visibility information.  */
223 #define CXXFLAGS_VISIBILITY (0x3)
224 /* This value in the lower two bits indicates a public member.  */
225 #define CXXFLAGS_VISIBILITY_PUBLIC (0x0)
226 /* This value in the lower two bits indicates a private member.  */
227 #define CXXFLAGS_VISIBILITY_PRIVATE (0x1)
228 /* This value in the lower two bits indicates a protected member.  */
229 #define CXXFLAGS_VISIBILITY_PROTECTED (0x2)
230 /* Set for a static member.  */
231 #define CXXFLAGS_STATIC (0x4)
232 /* Set for a virtual override.  */
233 #define CXXFLAGS_OVERRIDE (0x8)
234 /* Set for a friend function.  */
235 #define CXXFLAGS_FRIEND (0x10)
236 /* Set for a const function.  */
237 #define CXXFLAGS_CONST (0x20)
238 /* Set for a volatile function.  */
239 #define CXXFLAGS_VOLATILE (0x40)
240 /* Set for an overloaded function.  */
241 #define CXXFLAGS_OVERLOADED (0x80)
242 /* Set for an operator function.  */
243 #define CXXFLAGS_OPERATOR (0x100)
244 /* Set for a constructor or destructor.  */
245 #define CXXFLAGS_CTORDTOR (0x400)
246 /* Set for a constructor.  */
247 #define CXXFLAGS_CTOR (0x200)
248 /* Set for an inline function.  */
249 #define CXXFLAGS_INLINE (0x800)
250 
251 /* Local functions.  */
252 
253 static void ieee_error (struct ieee_info *, const bfd_byte *, const char *);
254 static void ieee_eof (struct ieee_info *);
255 static char *savestring (const char *, unsigned long);
256 static bfd_boolean ieee_read_number
257   (struct ieee_info *, const bfd_byte **, bfd_vma *);
258 static bfd_boolean ieee_read_optional_number
259   (struct ieee_info *, const bfd_byte **, bfd_vma *, bfd_boolean *);
260 static bfd_boolean ieee_read_id
261   (struct ieee_info *, const bfd_byte **, const char **, unsigned long *);
262 static bfd_boolean ieee_read_optional_id
263   (struct ieee_info *, const bfd_byte **, const char **, unsigned long *,
264    bfd_boolean *);
265 static bfd_boolean ieee_read_expression
266   (struct ieee_info *, const bfd_byte **, bfd_vma *);
267 static debug_type ieee_builtin_type
268   (struct ieee_info *, const bfd_byte *, unsigned int);
269 static bfd_boolean ieee_alloc_type
270   (struct ieee_info *, unsigned int, bfd_boolean);
271 static bfd_boolean ieee_read_type_index
272   (struct ieee_info *, const bfd_byte **, debug_type *);
273 static int ieee_regno_to_genreg (bfd *, int);
274 static int ieee_genreg_to_regno (bfd *, int);
275 static bfd_boolean parse_ieee_bb (struct ieee_info *, const bfd_byte **);
276 static bfd_boolean parse_ieee_be (struct ieee_info *, const bfd_byte **);
277 static bfd_boolean parse_ieee_nn (struct ieee_info *, const bfd_byte **);
278 static bfd_boolean parse_ieee_ty (struct ieee_info *, const bfd_byte **);
279 static bfd_boolean parse_ieee_atn (struct ieee_info *, const bfd_byte **);
280 static bfd_boolean ieee_read_cxx_misc
281   (struct ieee_info *, const bfd_byte **, unsigned long);
282 static bfd_boolean ieee_read_cxx_class
283   (struct ieee_info *, const bfd_byte **, unsigned long);
284 static bfd_boolean ieee_read_cxx_defaults
285   (struct ieee_info *, const bfd_byte **, unsigned long);
286 static bfd_boolean ieee_read_reference
287   (struct ieee_info *, const bfd_byte **);
288 static bfd_boolean ieee_require_asn
289   (struct ieee_info *, const bfd_byte **, bfd_vma *);
290 static bfd_boolean ieee_require_atn65
291   (struct ieee_info *, const bfd_byte **, const char **, unsigned long *);
292 
293 /* Report an error in the IEEE debugging information.  */
294 
295 static void
296 ieee_error (struct ieee_info *info, const bfd_byte *p, const char *s)
297 {
298   if (p != NULL)
299     fprintf (stderr, "%s: 0x%lx: %s (0x%x)\n", bfd_get_filename (info->abfd),
300 	     (unsigned long) (p - info->bytes), s, *p);
301   else
302     fprintf (stderr, "%s: %s\n", bfd_get_filename (info->abfd), s);
303 }
304 
305 /* Report an unexpected EOF in the IEEE debugging information.  */
306 
307 static void
308 ieee_eof (struct ieee_info *info)
309 {
310   ieee_error (info, (const bfd_byte *) NULL,
311 	      _("unexpected end of debugging information"));
312 }
313 
314 /* Save a string in memory.  */
315 
316 static char *
317 savestring (const char *start, unsigned long len)
318 {
319   char *ret;
320 
321   ret = (char *) xmalloc (len + 1);
322   memcpy (ret, start, len);
323   ret[len] = '\0';
324   return ret;
325 }
326 
327 /* Read a number which must be present in an IEEE file.  */
328 
329 static bfd_boolean
330 ieee_read_number (struct ieee_info *info, const bfd_byte **pp, bfd_vma *pv)
331 {
332   return ieee_read_optional_number (info, pp, pv, (bfd_boolean *) NULL);
333 }
334 
335 /* Read a number in an IEEE file.  If ppresent is not NULL, the number
336    need not be there.  */
337 
338 static bfd_boolean
339 ieee_read_optional_number (struct ieee_info *info, const bfd_byte **pp,
340 			   bfd_vma *pv, bfd_boolean *ppresent)
341 {
342   ieee_record_enum_type b;
343 
344   if (*pp >= info->pend)
345     {
346       if (ppresent != NULL)
347 	{
348 	  *ppresent = FALSE;
349 	  return TRUE;
350 	}
351       ieee_eof (info);
352       return FALSE;
353     }
354 
355   b = (ieee_record_enum_type) **pp;
356   ++*pp;
357 
358   if (b <= ieee_number_end_enum)
359     {
360       *pv = (bfd_vma) b;
361       if (ppresent != NULL)
362 	*ppresent = TRUE;
363       return TRUE;
364     }
365 
366   if (b >= ieee_number_repeat_start_enum && b <= ieee_number_repeat_end_enum)
367     {
368       unsigned int i;
369 
370       i = (int) b - (int) ieee_number_repeat_start_enum;
371       if (*pp + i - 1 >= info->pend)
372 	{
373 	  ieee_eof (info);
374 	  return FALSE;
375 	}
376 
377       *pv = 0;
378       for (; i > 0; i--)
379 	{
380 	  *pv <<= 8;
381 	  *pv += **pp;
382 	  ++*pp;
383 	}
384 
385       if (ppresent != NULL)
386 	*ppresent = TRUE;
387 
388       return TRUE;
389     }
390 
391   if (ppresent != NULL)
392     {
393       --*pp;
394       *ppresent = FALSE;
395       return TRUE;
396     }
397 
398   ieee_error (info, *pp - 1, _("invalid number"));
399   return FALSE;
400 }
401 
402 /* Read a required string from an IEEE file.  */
403 
404 static bfd_boolean
405 ieee_read_id (struct ieee_info *info, const bfd_byte **pp,
406 	      const char **pname, unsigned long *pnamlen)
407 {
408   return ieee_read_optional_id (info, pp, pname, pnamlen, (bfd_boolean *) NULL);
409 }
410 
411 /* Read a string from an IEEE file.  If ppresent is not NULL, the
412    string is optional.  */
413 
414 static bfd_boolean
415 ieee_read_optional_id (struct ieee_info *info, const bfd_byte **pp,
416 		       const char **pname, unsigned long *pnamlen,
417 		       bfd_boolean *ppresent)
418 {
419   bfd_byte b;
420   unsigned long len;
421 
422   if (*pp >= info->pend)
423     {
424       ieee_eof (info);
425       return FALSE;
426     }
427 
428   b = **pp;
429   ++*pp;
430 
431   if (b <= 0x7f)
432     len = b;
433   else if ((ieee_record_enum_type) b == ieee_extension_length_1_enum)
434     {
435       len = **pp;
436       ++*pp;
437     }
438   else if ((ieee_record_enum_type) b == ieee_extension_length_2_enum)
439     {
440       len = (**pp << 8) + (*pp)[1];
441       *pp += 2;
442     }
443   else
444     {
445       if (ppresent != NULL)
446 	{
447 	  --*pp;
448 	  *ppresent = FALSE;
449 	  return TRUE;
450 	}
451       ieee_error (info, *pp - 1, _("invalid string length"));
452       return FALSE;
453     }
454 
455   if ((unsigned long) (info->pend - *pp) < len)
456     {
457       ieee_eof (info);
458       return FALSE;
459     }
460 
461   *pname = (const char *) *pp;
462   *pnamlen = len;
463   *pp += len;
464 
465   if (ppresent != NULL)
466     *ppresent = TRUE;
467 
468   return TRUE;
469 }
470 
471 /* Read an expression from an IEEE file.  Since this code is only used
472    to parse debugging information, I haven't bothered to write a full
473    blown IEEE expression parser.  I've only thrown in the things I've
474    seen in debugging information.  This can be easily extended if
475    necessary.  */
476 
477 static bfd_boolean
478 ieee_read_expression (struct ieee_info *info, const bfd_byte **pp,
479 		      bfd_vma *pv)
480 {
481   const bfd_byte *expr_start;
482 #define EXPR_STACK_SIZE (10)
483   bfd_vma expr_stack[EXPR_STACK_SIZE];
484   bfd_vma *esp;
485 
486   expr_start = *pp;
487 
488   esp = expr_stack;
489 
490   while (1)
491     {
492       const bfd_byte *start;
493       bfd_vma val;
494       bfd_boolean present;
495       ieee_record_enum_type c;
496 
497       start = *pp;
498 
499       if (! ieee_read_optional_number (info, pp, &val, &present))
500 	return FALSE;
501 
502       if (present)
503 	{
504 	  if (esp - expr_stack >= EXPR_STACK_SIZE)
505 	    {
506 	      ieee_error (info, start, _("expression stack overflow"));
507 	      return FALSE;
508 	    }
509 	  *esp++ = val;
510 	  continue;
511 	}
512 
513       c = (ieee_record_enum_type) **pp;
514 
515       if (c >= ieee_module_beginning_enum)
516 	break;
517 
518       ++*pp;
519 
520       if (c == ieee_comma)
521 	break;
522 
523       switch (c)
524 	{
525 	default:
526 	  ieee_error (info, start, _("unsupported IEEE expression operator"));
527 	  break;
528 
529 	case ieee_variable_R_enum:
530 	  {
531 	    bfd_vma indx;
532 	    asection *s;
533 
534 	    if (! ieee_read_number (info, pp, &indx))
535 	      return FALSE;
536 	    for (s = info->abfd->sections; s != NULL; s = s->next)
537 	      if ((bfd_vma) s->target_index == indx)
538 		break;
539 	    if (s == NULL)
540 	      {
541 		ieee_error (info, start, _("unknown section"));
542 		return FALSE;
543 	      }
544 
545 	    if (esp - expr_stack >= EXPR_STACK_SIZE)
546 	      {
547 		ieee_error (info, start, _("expression stack overflow"));
548 		return FALSE;
549 	      }
550 
551 	    *esp++ = bfd_get_section_vma (info->abfd, s);
552 	  }
553 	  break;
554 
555 	case ieee_function_plus_enum:
556 	case ieee_function_minus_enum:
557 	  {
558 	    bfd_vma v1, v2;
559 
560 	    if (esp - expr_stack < 2)
561 	      {
562 		ieee_error (info, start, _("expression stack underflow"));
563 		return FALSE;
564 	      }
565 
566 	    v1 = *--esp;
567 	    v2 = *--esp;
568 	    *esp++ = v1 + v2;
569 	  }
570 	  break;
571 	}
572     }
573 
574   if (esp - 1 != expr_stack)
575     {
576       ieee_error (info, expr_start, _("expression stack mismatch"));
577       return FALSE;
578     }
579 
580   *pv = *--esp;
581 
582   return TRUE;
583 }
584 
585 /* Return an IEEE builtin type.  */
586 
587 static debug_type
588 ieee_builtin_type (struct ieee_info *info, const bfd_byte *p,
589 		   unsigned int indx)
590 {
591   void *dhandle;
592   debug_type type;
593   const char *name;
594 
595   if (indx < BUILTIN_TYPE_COUNT
596       && info->types.builtins[indx] != DEBUG_TYPE_NULL)
597     return info->types.builtins[indx];
598 
599   dhandle = info->dhandle;
600 
601   if (indx >= 32 && indx < 64)
602     {
603       type = debug_make_pointer_type (dhandle,
604 				      ieee_builtin_type (info, p, indx - 32));
605       assert (indx < BUILTIN_TYPE_COUNT);
606       info->types.builtins[indx] = type;
607       return type;
608     }
609 
610   switch ((enum builtin_types) indx)
611     {
612     default:
613       ieee_error (info, p, _("unknown builtin type"));
614       return NULL;
615 
616     case builtin_unknown:
617       type = debug_make_void_type (dhandle);
618       name = NULL;
619       break;
620 
621     case builtin_void:
622       type = debug_make_void_type (dhandle);
623       name = "void";
624       break;
625 
626     case builtin_signed_char:
627       type = debug_make_int_type (dhandle, 1, FALSE);
628       name = "signed char";
629       break;
630 
631     case builtin_unsigned_char:
632       type = debug_make_int_type (dhandle, 1, TRUE);
633       name = "unsigned char";
634       break;
635 
636     case builtin_signed_short_int:
637       type = debug_make_int_type (dhandle, 2, FALSE);
638       name = "signed short int";
639       break;
640 
641     case builtin_unsigned_short_int:
642       type = debug_make_int_type (dhandle, 2, TRUE);
643       name = "unsigned short int";
644       break;
645 
646     case builtin_signed_long:
647       type = debug_make_int_type (dhandle, 4, FALSE);
648       name = "signed long";
649       break;
650 
651     case builtin_unsigned_long:
652       type = debug_make_int_type (dhandle, 4, TRUE);
653       name = "unsigned long";
654       break;
655 
656     case builtin_signed_long_long:
657       type = debug_make_int_type (dhandle, 8, FALSE);
658       name = "signed long long";
659       break;
660 
661     case builtin_unsigned_long_long:
662       type = debug_make_int_type (dhandle, 8, TRUE);
663       name = "unsigned long long";
664       break;
665 
666     case builtin_float:
667       type = debug_make_float_type (dhandle, 4);
668       name = "float";
669       break;
670 
671     case builtin_double:
672       type = debug_make_float_type (dhandle, 8);
673       name = "double";
674       break;
675 
676     case builtin_long_double:
677       /* FIXME: The size for this type should depend upon the
678          processor.  */
679       type = debug_make_float_type (dhandle, 12);
680       name = "long double";
681       break;
682 
683     case builtin_long_long_double:
684       type = debug_make_float_type (dhandle, 16);
685       name = "long long double";
686       break;
687 
688     case builtin_quoted_string:
689       type = debug_make_array_type (dhandle,
690 				    ieee_builtin_type (info, p,
691 						       ((unsigned int)
692 							builtin_char)),
693 				    ieee_builtin_type (info, p,
694 						       ((unsigned int)
695 							builtin_int)),
696 				    0, -1, TRUE);
697       name = "QUOTED STRING";
698       break;
699 
700     case builtin_instruction_address:
701       /* FIXME: This should be a code address.  */
702       type = debug_make_int_type (dhandle, 4, TRUE);
703       name = "instruction address";
704       break;
705 
706     case builtin_int:
707       /* FIXME: The size for this type should depend upon the
708          processor.  */
709       type = debug_make_int_type (dhandle, 4, FALSE);
710       name = "int";
711       break;
712 
713     case builtin_unsigned:
714       /* FIXME: The size for this type should depend upon the
715          processor.  */
716       type = debug_make_int_type (dhandle, 4, TRUE);
717       name = "unsigned";
718       break;
719 
720     case builtin_unsigned_int:
721       /* FIXME: The size for this type should depend upon the
722          processor.  */
723       type = debug_make_int_type (dhandle, 4, TRUE);
724       name = "unsigned int";
725       break;
726 
727     case builtin_char:
728       type = debug_make_int_type (dhandle, 1, FALSE);
729       name = "char";
730       break;
731 
732     case builtin_long:
733       type = debug_make_int_type (dhandle, 4, FALSE);
734       name = "long";
735       break;
736 
737     case builtin_short:
738       type = debug_make_int_type (dhandle, 2, FALSE);
739       name = "short";
740       break;
741 
742     case builtin_unsigned_short:
743       type = debug_make_int_type (dhandle, 2, TRUE);
744       name = "unsigned short";
745       break;
746 
747     case builtin_short_int:
748       type = debug_make_int_type (dhandle, 2, FALSE);
749       name = "short int";
750       break;
751 
752     case builtin_signed_short:
753       type = debug_make_int_type (dhandle, 2, FALSE);
754       name = "signed short";
755       break;
756 
757     case builtin_bcd_float:
758       ieee_error (info, p, _("BCD float type not supported"));
759       return DEBUG_TYPE_NULL;
760     }
761 
762   if (name != NULL)
763     type = debug_name_type (dhandle, name, type);
764 
765   assert (indx < BUILTIN_TYPE_COUNT);
766 
767   info->types.builtins[indx] = type;
768 
769   return type;
770 }
771 
772 /* Allocate more space in the type table.  If ref is TRUE, this is a
773    reference to the type; if it is not already defined, we should set
774    up an indirect type.  */
775 
776 static bfd_boolean
777 ieee_alloc_type (struct ieee_info *info, unsigned int indx, bfd_boolean ref)
778 {
779   unsigned int nalloc;
780   register struct ieee_type *t;
781   struct ieee_type *tend;
782 
783   if (indx >= info->types.alloc)
784     {
785       nalloc = info->types.alloc;
786       if (nalloc == 0)
787 	nalloc = 4;
788       while (indx >= nalloc)
789 	nalloc *= 2;
790 
791       info->types.types = ((struct ieee_type *)
792 			   xrealloc (info->types.types,
793 				     nalloc * sizeof *info->types.types));
794 
795       memset (info->types.types + info->types.alloc, 0,
796 	      (nalloc - info->types.alloc) * sizeof *info->types.types);
797 
798       tend = info->types.types + nalloc;
799       for (t = info->types.types + info->types.alloc; t < tend; t++)
800 	t->type = DEBUG_TYPE_NULL;
801 
802       info->types.alloc = nalloc;
803     }
804 
805   if (ref)
806     {
807       t = info->types.types + indx;
808       if (t->type == NULL)
809 	{
810 	  t->pslot = (debug_type *) xmalloc (sizeof *t->pslot);
811 	  *t->pslot = DEBUG_TYPE_NULL;
812 	  t->type = debug_make_indirect_type (info->dhandle, t->pslot,
813 					      (const char *) NULL);
814 	  if (t->type == NULL)
815 	    return FALSE;
816 	}
817     }
818 
819   return TRUE;
820 }
821 
822 /* Read a type index and return the corresponding type.  */
823 
824 static bfd_boolean
825 ieee_read_type_index (struct ieee_info *info, const bfd_byte **pp,
826 		      debug_type *ptype)
827 {
828   const bfd_byte *start;
829   bfd_vma indx;
830 
831   start = *pp;
832 
833   if (! ieee_read_number (info, pp, &indx))
834     return FALSE;
835 
836   if (indx < 256)
837     {
838       *ptype = ieee_builtin_type (info, start, indx);
839       if (*ptype == NULL)
840 	return FALSE;
841       return TRUE;
842     }
843 
844   indx -= 256;
845   if (! ieee_alloc_type (info, indx, TRUE))
846     return FALSE;
847 
848   *ptype = info->types.types[indx].type;
849 
850   return TRUE;
851 }
852 
853 /* Parse IEEE debugging information for a file.  This is passed the
854    bytes which compose the Debug Information Part of an IEEE file.  */
855 
856 bfd_boolean
857 parse_ieee (void *dhandle, bfd *abfd, const bfd_byte *bytes, bfd_size_type len)
858 {
859   struct ieee_info info;
860   unsigned int i;
861   const bfd_byte *p, *pend;
862 
863   info.dhandle = dhandle;
864   info.abfd = abfd;
865   info.bytes = bytes;
866   info.pend = bytes + len;
867   info.blockstack.bsp = info.blockstack.stack;
868   info.saw_filename = FALSE;
869   info.vars.alloc = 0;
870   info.vars.vars = NULL;
871   info.global_vars = NULL;
872   info.types.alloc = 0;
873   info.types.types = NULL;
874   info.global_types = NULL;
875   info.tags = NULL;
876   for (i = 0; i < BUILTIN_TYPE_COUNT; i++)
877     info.types.builtins[i] = DEBUG_TYPE_NULL;
878 
879   p = bytes;
880   pend = info.pend;
881   while (p < pend)
882     {
883       const bfd_byte *record_start;
884       ieee_record_enum_type c;
885 
886       record_start = p;
887 
888       c = (ieee_record_enum_type) *p++;
889 
890       if (c == ieee_at_record_enum)
891 	c = (ieee_record_enum_type) (((unsigned int) c << 8) | *p++);
892 
893       if (c <= ieee_number_repeat_end_enum)
894 	{
895 	  ieee_error (&info, record_start, _("unexpected number"));
896 	  return FALSE;
897 	}
898 
899       switch (c)
900 	{
901 	default:
902 	  ieee_error (&info, record_start, _("unexpected record type"));
903 	  return FALSE;
904 
905 	case ieee_bb_record_enum:
906 	  if (! parse_ieee_bb (&info, &p))
907 	    return FALSE;
908 	  break;
909 
910 	case ieee_be_record_enum:
911 	  if (! parse_ieee_be (&info, &p))
912 	    return FALSE;
913 	  break;
914 
915 	case ieee_nn_record:
916 	  if (! parse_ieee_nn (&info, &p))
917 	    return FALSE;
918 	  break;
919 
920 	case ieee_ty_record_enum:
921 	  if (! parse_ieee_ty (&info, &p))
922 	    return FALSE;
923 	  break;
924 
925 	case ieee_atn_record_enum:
926 	  if (! parse_ieee_atn (&info, &p))
927 	    return FALSE;
928 	  break;
929 	}
930     }
931 
932   if (info.blockstack.bsp != info.blockstack.stack)
933     {
934       ieee_error (&info, (const bfd_byte *) NULL,
935 		  _("blocks left on stack at end"));
936       return FALSE;
937     }
938 
939   return TRUE;
940 }
941 
942 /* Handle an IEEE BB record.  */
943 
944 static bfd_boolean
945 parse_ieee_bb (struct ieee_info *info, const bfd_byte **pp)
946 {
947   const bfd_byte *block_start;
948   bfd_byte b;
949   bfd_vma size;
950   const char *name;
951   unsigned long namlen;
952   char *namcopy = NULL;
953   unsigned int fnindx;
954   bfd_boolean skip;
955 
956   block_start = *pp;
957 
958   b = **pp;
959   ++*pp;
960 
961   if (! ieee_read_number (info, pp, &size)
962       || ! ieee_read_id (info, pp, &name, &namlen))
963     return FALSE;
964 
965   fnindx = (unsigned int) -1;
966   skip = FALSE;
967 
968   switch (b)
969     {
970     case 1:
971       /* BB1: Type definitions local to a module.  */
972       namcopy = savestring (name, namlen);
973       if (namcopy == NULL)
974 	return FALSE;
975       if (! debug_set_filename (info->dhandle, namcopy))
976 	return FALSE;
977       info->saw_filename = TRUE;
978 
979       /* Discard any variables or types we may have seen before.  */
980       if (info->vars.vars != NULL)
981 	free (info->vars.vars);
982       info->vars.vars = NULL;
983       info->vars.alloc = 0;
984       if (info->types.types != NULL)
985 	free (info->types.types);
986       info->types.types = NULL;
987       info->types.alloc = 0;
988 
989       /* Initialize the types to the global types.  */
990       if (info->global_types != NULL)
991 	{
992 	  info->types.alloc = info->global_types->alloc;
993 	  info->types.types = ((struct ieee_type *)
994 			       xmalloc (info->types.alloc
995 					* sizeof (*info->types.types)));
996 	  memcpy (info->types.types, info->global_types->types,
997 		  info->types.alloc * sizeof (*info->types.types));
998 	}
999 
1000       break;
1001 
1002     case 2:
1003       /* BB2: Global type definitions.  The name is supposed to be
1004 	 empty, but we don't check.  */
1005       if (! debug_set_filename (info->dhandle, "*global*"))
1006 	return FALSE;
1007       info->saw_filename = TRUE;
1008       break;
1009 
1010     case 3:
1011       /* BB3: High level module block begin.  We don't have to do
1012 	 anything here.  The name is supposed to be the same as for
1013 	 the BB1, but we don't check.  */
1014       break;
1015 
1016     case 4:
1017       /* BB4: Global function.  */
1018       {
1019 	bfd_vma stackspace, typindx, offset;
1020 	debug_type return_type;
1021 
1022 	if (! ieee_read_number (info, pp, &stackspace)
1023 	    || ! ieee_read_number (info, pp, &typindx)
1024 	    || ! ieee_read_expression (info, pp, &offset))
1025 	  return FALSE;
1026 
1027 	/* We have no way to record the stack space.  FIXME.  */
1028 
1029 	if (typindx < 256)
1030 	  {
1031 	    return_type = ieee_builtin_type (info, block_start, typindx);
1032 	    if (return_type == DEBUG_TYPE_NULL)
1033 	      return FALSE;
1034 	  }
1035 	else
1036 	  {
1037 	    typindx -= 256;
1038 	    if (! ieee_alloc_type (info, typindx, TRUE))
1039 	      return FALSE;
1040 	    fnindx = typindx;
1041 	    return_type = info->types.types[typindx].type;
1042 	    if (debug_get_type_kind (info->dhandle, return_type)
1043 		== DEBUG_KIND_FUNCTION)
1044 	      return_type = debug_get_return_type (info->dhandle,
1045 						   return_type);
1046 	  }
1047 
1048 	namcopy = savestring (name, namlen);
1049 	if (namcopy == NULL)
1050 	  return FALSE;
1051 	if (! debug_record_function (info->dhandle, namcopy, return_type,
1052 				     TRUE, offset))
1053 	  return FALSE;
1054       }
1055       break;
1056 
1057     case 5:
1058       /* BB5: File name for source line numbers.  */
1059       {
1060 	unsigned int i;
1061 
1062 	/* We ignore the date and time.  FIXME.  */
1063 	for (i = 0; i < 6; i++)
1064 	  {
1065 	    bfd_vma ignore;
1066 	    bfd_boolean present;
1067 
1068 	    if (! ieee_read_optional_number (info, pp, &ignore, &present))
1069 	      return FALSE;
1070 	    if (! present)
1071 	      break;
1072 	  }
1073 
1074 	namcopy = savestring (name, namlen);
1075 	if (namcopy == NULL)
1076 	  return FALSE;
1077 	if (! debug_start_source (info->dhandle, namcopy))
1078 	  return FALSE;
1079       }
1080       break;
1081 
1082     case 6:
1083       /* BB6: Local function or block.  */
1084       {
1085 	bfd_vma stackspace, typindx, offset;
1086 
1087 	if (! ieee_read_number (info, pp, &stackspace)
1088 	    || ! ieee_read_number (info, pp, &typindx)
1089 	    || ! ieee_read_expression (info, pp, &offset))
1090 	  return FALSE;
1091 
1092 	/* We have no way to record the stack space.  FIXME.  */
1093 
1094 	if (namlen == 0)
1095 	  {
1096 	    if (! debug_start_block (info->dhandle, offset))
1097 	      return FALSE;
1098 	    /* Change b to indicate that this is a block
1099 	       rather than a function.  */
1100 	    b = 0x86;
1101 	  }
1102 	else
1103 	  {
1104 	    /* The MRI C++ compiler will output a fake function named
1105 	       __XRYCPP to hold C++ debugging information.  We skip
1106 	       that function.  This is not crucial, but it makes
1107 	       converting from IEEE to other debug formats work
1108 	       better.  */
1109 	    if (strncmp (name, "__XRYCPP", namlen) == 0)
1110 	      skip = TRUE;
1111 	    else
1112 	      {
1113 		debug_type return_type;
1114 
1115 		if (typindx < 256)
1116 		  {
1117 		    return_type = ieee_builtin_type (info, block_start,
1118 						     typindx);
1119 		    if (return_type == NULL)
1120 		      return FALSE;
1121 		  }
1122 		else
1123 		  {
1124 		    typindx -= 256;
1125 		    if (! ieee_alloc_type (info, typindx, TRUE))
1126 		      return FALSE;
1127 		    fnindx = typindx;
1128 		    return_type = info->types.types[typindx].type;
1129 		    if (debug_get_type_kind (info->dhandle, return_type)
1130 			== DEBUG_KIND_FUNCTION)
1131 		      return_type = debug_get_return_type (info->dhandle,
1132 							   return_type);
1133 		  }
1134 
1135 		namcopy = savestring (name, namlen);
1136 		if (namcopy == NULL)
1137 		  return FALSE;
1138 		if (! debug_record_function (info->dhandle, namcopy,
1139 					     return_type, FALSE, offset))
1140 		  return FALSE;
1141 	      }
1142 	  }
1143       }
1144       break;
1145 
1146     case 10:
1147       /* BB10: Assembler module scope.  In the normal case, we
1148 	 completely ignore all this information.  FIXME.  */
1149       {
1150 	const char *inam, *vstr;
1151 	unsigned long inamlen, vstrlen;
1152 	bfd_vma tool_type;
1153 	bfd_boolean present;
1154 	unsigned int i;
1155 
1156 	if (! info->saw_filename)
1157 	  {
1158 	    namcopy = savestring (name, namlen);
1159 	    if (namcopy == NULL)
1160 	      return FALSE;
1161 	    if (! debug_set_filename (info->dhandle, namcopy))
1162 	      return FALSE;
1163 	    info->saw_filename = TRUE;
1164 	  }
1165 
1166 	if (! ieee_read_id (info, pp, &inam, &inamlen)
1167 	    || ! ieee_read_number (info, pp, &tool_type)
1168 	    || ! ieee_read_optional_id (info, pp, &vstr, &vstrlen, &present))
1169 	  return FALSE;
1170 	for (i = 0; i < 6; i++)
1171 	  {
1172 	    bfd_vma ignore;
1173 
1174 	    if (! ieee_read_optional_number (info, pp, &ignore, &present))
1175 	      return FALSE;
1176 	    if (! present)
1177 	      break;
1178 	  }
1179       }
1180       break;
1181 
1182     case 11:
1183       /* BB11: Module section.  We completely ignore all this
1184 	 information.  FIXME.  */
1185       {
1186 	bfd_vma sectype, secindx, offset, map;
1187 	bfd_boolean present;
1188 
1189 	if (! ieee_read_number (info, pp, &sectype)
1190 	    || ! ieee_read_number (info, pp, &secindx)
1191 	    || ! ieee_read_expression (info, pp, &offset)
1192 	    || ! ieee_read_optional_number (info, pp, &map, &present))
1193 	  return FALSE;
1194       }
1195       break;
1196 
1197     default:
1198       ieee_error (info, block_start, _("unknown BB type"));
1199       return FALSE;
1200     }
1201 
1202 
1203   /* Push this block on the block stack.  */
1204 
1205   if (info->blockstack.bsp >= info->blockstack.stack + BLOCKSTACK_SIZE)
1206     {
1207       ieee_error (info, (const bfd_byte *) NULL, _("stack overflow"));
1208       return FALSE;
1209     }
1210 
1211   info->blockstack.bsp->kind = b;
1212   if (b == 5)
1213     info->blockstack.bsp->filename = namcopy;
1214   info->blockstack.bsp->fnindx = fnindx;
1215   info->blockstack.bsp->skip = skip;
1216   ++info->blockstack.bsp;
1217 
1218   return TRUE;
1219 }
1220 
1221 /* Handle an IEEE BE record.  */
1222 
1223 static bfd_boolean
1224 parse_ieee_be (struct ieee_info *info, const bfd_byte **pp)
1225 {
1226   bfd_vma offset;
1227 
1228   if (info->blockstack.bsp <= info->blockstack.stack)
1229     {
1230       ieee_error (info, *pp, _("stack underflow"));
1231       return FALSE;
1232     }
1233   --info->blockstack.bsp;
1234 
1235   switch (info->blockstack.bsp->kind)
1236     {
1237     case 2:
1238       /* When we end the global typedefs block, we copy out the
1239          contents of info->vars.  This is because the variable indices
1240          may be reused in the local blocks.  However, we need to
1241          preserve them so that we can locate a function returning a
1242          reference variable whose type is named in the global typedef
1243          block.  */
1244       info->global_vars = ((struct ieee_vars *)
1245 			   xmalloc (sizeof *info->global_vars));
1246       info->global_vars->alloc = info->vars.alloc;
1247       info->global_vars->vars = ((struct ieee_var *)
1248 				 xmalloc (info->vars.alloc
1249 					  * sizeof (*info->vars.vars)));
1250       memcpy (info->global_vars->vars, info->vars.vars,
1251 	      info->vars.alloc * sizeof (*info->vars.vars));
1252 
1253       /* We also copy out the non builtin parts of info->types, since
1254          the types are discarded when we start a new block.  */
1255       info->global_types = ((struct ieee_types *)
1256 			    xmalloc (sizeof *info->global_types));
1257       info->global_types->alloc = info->types.alloc;
1258       info->global_types->types = ((struct ieee_type *)
1259 				   xmalloc (info->types.alloc
1260 					    * sizeof (*info->types.types)));
1261       memcpy (info->global_types->types, info->types.types,
1262 	      info->types.alloc * sizeof (*info->types.types));
1263       memset (info->global_types->builtins, 0,
1264 	      sizeof (info->global_types->builtins));
1265 
1266       break;
1267 
1268     case 4:
1269     case 6:
1270       if (! ieee_read_expression (info, pp, &offset))
1271 	return FALSE;
1272       if (! info->blockstack.bsp->skip)
1273 	{
1274 	  if (! debug_end_function (info->dhandle, offset + 1))
1275 	    return FALSE;
1276 	}
1277       break;
1278 
1279     case 0x86:
1280       /* This is BE6 when BB6 started a block rather than a local
1281 	 function.  */
1282       if (! ieee_read_expression (info, pp, &offset))
1283 	return FALSE;
1284       if (! debug_end_block (info->dhandle, offset + 1))
1285 	return FALSE;
1286       break;
1287 
1288     case 5:
1289       /* When we end a BB5, we look up the stack for the last BB5, if
1290          there is one, so that we can call debug_start_source.  */
1291       if (info->blockstack.bsp > info->blockstack.stack)
1292 	{
1293 	  struct ieee_block *bl;
1294 
1295 	  bl = info->blockstack.bsp;
1296 	  do
1297 	    {
1298 	      --bl;
1299 	      if (bl->kind == 5)
1300 		{
1301 		  if (! debug_start_source (info->dhandle, bl->filename))
1302 		    return FALSE;
1303 		  break;
1304 		}
1305 	    }
1306 	  while (bl != info->blockstack.stack);
1307 	}
1308       break;
1309 
1310     case 11:
1311       if (! ieee_read_expression (info, pp, &offset))
1312 	return FALSE;
1313       /* We just ignore the module size.  FIXME.  */
1314       break;
1315 
1316     default:
1317       /* Other block types do not have any trailing information.  */
1318       break;
1319     }
1320 
1321   return TRUE;
1322 }
1323 
1324 /* Parse an NN record.  */
1325 
1326 static bfd_boolean
1327 parse_ieee_nn (struct ieee_info *info, const bfd_byte **pp)
1328 {
1329   const bfd_byte *nn_start;
1330   bfd_vma varindx;
1331   const char *name;
1332   unsigned long namlen;
1333 
1334   nn_start = *pp;
1335 
1336   if (! ieee_read_number (info, pp, &varindx)
1337       || ! ieee_read_id (info, pp, &name, &namlen))
1338     return FALSE;
1339 
1340   if (varindx < 32)
1341     {
1342       ieee_error (info, nn_start, _("illegal variable index"));
1343       return FALSE;
1344     }
1345   varindx -= 32;
1346 
1347   if (varindx >= info->vars.alloc)
1348     {
1349       unsigned int alloc;
1350 
1351       alloc = info->vars.alloc;
1352       if (alloc == 0)
1353 	alloc = 4;
1354       while (varindx >= alloc)
1355 	alloc *= 2;
1356       info->vars.vars = ((struct ieee_var *)
1357 			 xrealloc (info->vars.vars,
1358 				   alloc * sizeof *info->vars.vars));
1359       memset (info->vars.vars + info->vars.alloc, 0,
1360 	      (alloc - info->vars.alloc) * sizeof *info->vars.vars);
1361       info->vars.alloc = alloc;
1362     }
1363 
1364   info->vars.vars[varindx].name = name;
1365   info->vars.vars[varindx].namlen = namlen;
1366 
1367   return TRUE;
1368 }
1369 
1370 /* Parse a TY record.  */
1371 
1372 static bfd_boolean
1373 parse_ieee_ty (struct ieee_info *info, const bfd_byte **pp)
1374 {
1375   const bfd_byte *ty_start, *ty_var_start, *ty_code_start;
1376   bfd_vma typeindx, varindx, tc;
1377   void *dhandle;
1378   bfd_boolean tag, typdef;
1379   debug_type *arg_slots;
1380   unsigned long type_bitsize;
1381   debug_type type;
1382 
1383   ty_start = *pp;
1384 
1385   if (! ieee_read_number (info, pp, &typeindx))
1386     return FALSE;
1387 
1388   if (typeindx < 256)
1389     {
1390       ieee_error (info, ty_start, _("illegal type index"));
1391       return FALSE;
1392     }
1393 
1394   typeindx -= 256;
1395   if (! ieee_alloc_type (info, typeindx, FALSE))
1396     return FALSE;
1397 
1398   if (**pp != 0xce)
1399     {
1400       ieee_error (info, *pp, _("unknown TY code"));
1401       return FALSE;
1402     }
1403   ++*pp;
1404 
1405   ty_var_start = *pp;
1406 
1407   if (! ieee_read_number (info, pp, &varindx))
1408     return FALSE;
1409 
1410   if (varindx < 32)
1411     {
1412       ieee_error (info, ty_var_start, _("illegal variable index"));
1413       return FALSE;
1414     }
1415   varindx -= 32;
1416 
1417   if (varindx >= info->vars.alloc || info->vars.vars[varindx].name == NULL)
1418     {
1419       ieee_error (info, ty_var_start, _("undefined variable in TY"));
1420       return FALSE;
1421     }
1422 
1423   ty_code_start = *pp;
1424 
1425   if (! ieee_read_number (info, pp, &tc))
1426     return FALSE;
1427 
1428   dhandle = info->dhandle;
1429 
1430   tag = FALSE;
1431   typdef = FALSE;
1432   arg_slots = NULL;
1433   type_bitsize = 0;
1434   switch (tc)
1435     {
1436     default:
1437       ieee_error (info, ty_code_start, _("unknown TY code"));
1438       return FALSE;
1439 
1440     case '!':
1441       /* Unknown type, with size.  We treat it as int.  FIXME.  */
1442       {
1443 	bfd_vma size;
1444 
1445 	if (! ieee_read_number (info, pp, &size))
1446 	  return FALSE;
1447 	type = debug_make_int_type (dhandle, size, FALSE);
1448       }
1449       break;
1450 
1451     case 'A': /* Array.  */
1452     case 'a': /* FORTRAN array in column/row order.  FIXME: Not
1453 		 distinguished from normal array.  */
1454       {
1455 	debug_type ele_type;
1456 	bfd_vma lower, upper;
1457 
1458 	if (! ieee_read_type_index (info, pp, &ele_type)
1459 	    || ! ieee_read_number (info, pp, &lower)
1460 	    || ! ieee_read_number (info, pp, &upper))
1461 	  return FALSE;
1462 	type = debug_make_array_type (dhandle, ele_type,
1463 				      ieee_builtin_type (info, ty_code_start,
1464 							 ((unsigned int)
1465 							  builtin_int)),
1466 				      (bfd_signed_vma) lower,
1467 				      (bfd_signed_vma) upper,
1468 				      FALSE);
1469       }
1470       break;
1471 
1472     case 'E':
1473       /* Simple enumeration.  */
1474       {
1475 	bfd_vma size;
1476 	unsigned int alloc;
1477 	const char **names;
1478 	unsigned int c;
1479 	bfd_signed_vma *vals;
1480 	unsigned int i;
1481 
1482 	if (! ieee_read_number (info, pp, &size))
1483 	  return FALSE;
1484 	/* FIXME: we ignore the enumeration size.  */
1485 
1486 	alloc = 10;
1487 	names = (const char **) xmalloc (alloc * sizeof *names);
1488 	memset (names, 0, alloc * sizeof *names);
1489 	c = 0;
1490 	while (1)
1491 	  {
1492 	    const char *name;
1493 	    unsigned long namlen;
1494 	    bfd_boolean present;
1495 
1496 	    if (! ieee_read_optional_id (info, pp, &name, &namlen, &present))
1497 	      return FALSE;
1498 	    if (! present)
1499 	      break;
1500 
1501 	    if (c + 1 >= alloc)
1502 	      {
1503 		alloc += 10;
1504 		names = ((const char **)
1505 			 xrealloc (names, alloc * sizeof *names));
1506 	      }
1507 
1508 	    names[c] = savestring (name, namlen);
1509 	    if (names[c] == NULL)
1510 	      return FALSE;
1511 	    ++c;
1512 	  }
1513 
1514 	names[c] = NULL;
1515 
1516 	vals = (bfd_signed_vma *) xmalloc (c * sizeof *vals);
1517 	for (i = 0; i < c; i++)
1518 	  vals[i] = i;
1519 
1520 	type = debug_make_enum_type (dhandle, names, vals);
1521 	tag = TRUE;
1522       }
1523       break;
1524 
1525     case 'G':
1526       /* Struct with bit fields.  */
1527       {
1528 	bfd_vma size;
1529 	unsigned int alloc;
1530 	debug_field *fields;
1531 	unsigned int c;
1532 
1533 	if (! ieee_read_number (info, pp, &size))
1534 	  return FALSE;
1535 
1536 	alloc = 10;
1537 	fields = (debug_field *) xmalloc (alloc * sizeof *fields);
1538 	c = 0;
1539 	while (1)
1540 	  {
1541 	    const char *name;
1542 	    unsigned long namlen;
1543 	    bfd_boolean present;
1544 	    debug_type ftype;
1545 	    bfd_vma bitpos, bitsize;
1546 
1547 	    if (! ieee_read_optional_id (info, pp, &name, &namlen, &present))
1548 	      return FALSE;
1549 	    if (! present)
1550 	      break;
1551 	    if (! ieee_read_type_index (info, pp, &ftype)
1552 		|| ! ieee_read_number (info, pp, &bitpos)
1553 		|| ! ieee_read_number (info, pp, &bitsize))
1554 	      return FALSE;
1555 
1556 	    if (c + 1 >= alloc)
1557 	      {
1558 		alloc += 10;
1559 		fields = ((debug_field *)
1560 			  xrealloc (fields, alloc * sizeof *fields));
1561 	      }
1562 
1563 	    fields[c] = debug_make_field (dhandle, savestring (name, namlen),
1564 					  ftype, bitpos, bitsize,
1565 					  DEBUG_VISIBILITY_PUBLIC);
1566 	    if (fields[c] == NULL)
1567 	      return FALSE;
1568 	    ++c;
1569 	  }
1570 
1571 	fields[c] = NULL;
1572 
1573 	type = debug_make_struct_type (dhandle, TRUE, size, fields);
1574 	tag = TRUE;
1575       }
1576       break;
1577 
1578     case 'N':
1579       /* Enumeration.  */
1580       {
1581 	unsigned int alloc;
1582 	const char **names;
1583 	bfd_signed_vma *vals;
1584 	unsigned int c;
1585 
1586 	alloc = 10;
1587 	names = (const char **) xmalloc (alloc * sizeof *names);
1588 	vals = (bfd_signed_vma *) xmalloc (alloc * sizeof *names);
1589 	c = 0;
1590 	while (1)
1591 	  {
1592 	    const char *name;
1593 	    unsigned long namlen;
1594 	    bfd_boolean present;
1595 	    bfd_vma val;
1596 
1597 	    if (! ieee_read_optional_id (info, pp, &name, &namlen, &present))
1598 	      return FALSE;
1599 	    if (! present)
1600 	      break;
1601 	    if (! ieee_read_number (info, pp, &val))
1602 	      return FALSE;
1603 
1604 	    /* If the length of the name is zero, then the value is
1605                actually the size of the enum.  We ignore this
1606                information.  FIXME.  */
1607 	    if (namlen == 0)
1608 	      continue;
1609 
1610 	    if (c + 1 >= alloc)
1611 	      {
1612 		alloc += 10;
1613 		names = ((const char **)
1614 			 xrealloc (names, alloc * sizeof *names));
1615 		vals = ((bfd_signed_vma *)
1616 			xrealloc (vals, alloc * sizeof *vals));
1617 	      }
1618 
1619 	    names[c] = savestring (name, namlen);
1620 	    if (names[c] == NULL)
1621 	      return FALSE;
1622 	    vals[c] = (bfd_signed_vma) val;
1623 	    ++c;
1624 	  }
1625 
1626 	names[c] = NULL;
1627 
1628 	type = debug_make_enum_type (dhandle, names, vals);
1629 	tag = TRUE;
1630       }
1631       break;
1632 
1633     case 'O': /* Small pointer.  We don't distinguish small and large
1634 		 pointers.  FIXME.  */
1635     case 'P': /* Large pointer.  */
1636       {
1637 	debug_type t;
1638 
1639 	if (! ieee_read_type_index (info, pp, &t))
1640 	  return FALSE;
1641 	type = debug_make_pointer_type (dhandle, t);
1642       }
1643       break;
1644 
1645     case 'R':
1646       /* Range.  */
1647       {
1648 	bfd_vma low, high, signedp, size;
1649 
1650 	if (! ieee_read_number (info, pp, &low)
1651 	    || ! ieee_read_number (info, pp, &high)
1652 	    || ! ieee_read_number (info, pp, &signedp)
1653 	    || ! ieee_read_number (info, pp, &size))
1654 	  return FALSE;
1655 
1656 	type = debug_make_range_type (dhandle,
1657 				      debug_make_int_type (dhandle, size,
1658 							   ! signedp),
1659 				      (bfd_signed_vma) low,
1660 				      (bfd_signed_vma) high);
1661       }
1662       break;
1663 
1664     case 'S': /* Struct.  */
1665     case 'U': /* Union.  */
1666       {
1667 	bfd_vma size;
1668 	unsigned int alloc;
1669 	debug_field *fields;
1670 	unsigned int c;
1671 
1672 	if (! ieee_read_number (info, pp, &size))
1673 	  return FALSE;
1674 
1675 	alloc = 10;
1676 	fields = (debug_field *) xmalloc (alloc * sizeof *fields);
1677 	c = 0;
1678 	while (1)
1679 	  {
1680 	    const char *name;
1681 	    unsigned long namlen;
1682 	    bfd_boolean present;
1683 	    bfd_vma tindx;
1684 	    bfd_vma offset;
1685 	    debug_type ftype;
1686 	    bfd_vma bitsize;
1687 
1688 	    if (! ieee_read_optional_id (info, pp, &name, &namlen, &present))
1689 	      return FALSE;
1690 	    if (! present)
1691 	      break;
1692 	    if (! ieee_read_number (info, pp, &tindx)
1693 		|| ! ieee_read_number (info, pp, &offset))
1694 	      return FALSE;
1695 
1696 	    if (tindx < 256)
1697 	      {
1698 		ftype = ieee_builtin_type (info, ty_code_start, tindx);
1699 		bitsize = 0;
1700 		offset *= 8;
1701 	      }
1702 	    else
1703 	      {
1704 		struct ieee_type *t;
1705 
1706 		tindx -= 256;
1707 		if (! ieee_alloc_type (info, tindx, TRUE))
1708 		  return FALSE;
1709 		t = info->types.types + tindx;
1710 		ftype = t->type;
1711 		bitsize = t->bitsize;
1712 		if (bitsize == 0)
1713 		  offset *= 8;
1714 	      }
1715 
1716 	    if (c + 1 >= alloc)
1717 	      {
1718 		alloc += 10;
1719 		fields = ((debug_field *)
1720 			  xrealloc (fields, alloc * sizeof *fields));
1721 	      }
1722 
1723 	    fields[c] = debug_make_field (dhandle, savestring (name, namlen),
1724 					  ftype, offset, bitsize,
1725 					  DEBUG_VISIBILITY_PUBLIC);
1726 	    if (fields[c] == NULL)
1727 	      return FALSE;
1728 	    ++c;
1729 	  }
1730 
1731 	fields[c] = NULL;
1732 
1733 	type = debug_make_struct_type (dhandle, tc == 'S', size, fields);
1734 	tag = TRUE;
1735       }
1736       break;
1737 
1738     case 'T':
1739       /* Typedef.  */
1740       if (! ieee_read_type_index (info, pp, &type))
1741 	return FALSE;
1742       typdef = TRUE;
1743       break;
1744 
1745     case 'X':
1746       /* Procedure.  FIXME: This is an extern declaration, which we
1747          have no way of representing.  */
1748       {
1749 	bfd_vma attr;
1750 	debug_type rtype;
1751 	bfd_vma nargs;
1752 	bfd_boolean present;
1753 	struct ieee_var *pv;
1754 
1755 	/* FIXME: We ignore the attribute and the argument names.  */
1756 
1757 	if (! ieee_read_number (info, pp, &attr)
1758 	    || ! ieee_read_type_index (info, pp, &rtype)
1759 	    || ! ieee_read_number (info, pp, &nargs))
1760 	  return FALSE;
1761 	do
1762 	  {
1763 	    const char *name;
1764 	    unsigned long namlen;
1765 
1766 	    if (! ieee_read_optional_id (info, pp, &name, &namlen, &present))
1767 	      return FALSE;
1768 	  }
1769 	while (present);
1770 
1771 	pv = info->vars.vars + varindx;
1772 	pv->kind = IEEE_EXTERNAL;
1773 	if (pv->namlen > 0
1774 	    && debug_get_type_kind (dhandle, rtype) == DEBUG_KIND_POINTER)
1775 	  {
1776 	    /* Set up the return type as an indirect type pointing to
1777                the variable slot, so that we can change it to a
1778                reference later if appropriate.  */
1779 	    pv->pslot = (debug_type *) xmalloc (sizeof *pv->pslot);
1780 	    *pv->pslot = rtype;
1781 	    rtype = debug_make_indirect_type (dhandle, pv->pslot,
1782 					      (const char *) NULL);
1783 	  }
1784 
1785 	type = debug_make_function_type (dhandle, rtype, (debug_type *) NULL,
1786 					 FALSE);
1787       }
1788       break;
1789 
1790     case 'V':
1791       /* Void.  This is not documented, but the MRI compiler emits it.  */
1792       type = debug_make_void_type (dhandle);
1793       break;
1794 
1795     case 'Z':
1796       /* Array with 0 lower bound.  */
1797       {
1798 	debug_type etype;
1799 	bfd_vma high;
1800 
1801 	if (! ieee_read_type_index (info, pp, &etype)
1802 	    || ! ieee_read_number (info, pp, &high))
1803 	  return FALSE;
1804 
1805 	type = debug_make_array_type (dhandle, etype,
1806 				      ieee_builtin_type (info, ty_code_start,
1807 							 ((unsigned int)
1808 							  builtin_int)),
1809 				      0, (bfd_signed_vma) high, FALSE);
1810       }
1811       break;
1812 
1813     case 'c': /* Complex.  */
1814     case 'd': /* Double complex.  */
1815       {
1816 	const char *name;
1817 	unsigned long namlen;
1818 
1819 	/* FIXME: I don't know what the name means.  */
1820 
1821 	if (! ieee_read_id (info, pp, &name, &namlen))
1822 	  return FALSE;
1823 
1824 	type = debug_make_complex_type (dhandle, tc == 'c' ? 4 : 8);
1825       }
1826       break;
1827 
1828     case 'f':
1829       /* Pascal file name.  FIXME.  */
1830       ieee_error (info, ty_code_start, _("Pascal file name not supported"));
1831       return FALSE;
1832 
1833     case 'g':
1834       /* Bitfield type.  */
1835       {
1836 	bfd_vma signedp, bitsize, dummy;
1837 	const bfd_byte *hold;
1838 	bfd_boolean present;
1839 
1840 	if (! ieee_read_number (info, pp, &signedp)
1841 	    || ! ieee_read_number (info, pp, &bitsize))
1842 	  return FALSE;
1843 
1844 	/* I think the documentation says that there is a type index,
1845            but some actual files do not have one.  */
1846 	hold = *pp;
1847 	if (! ieee_read_optional_number (info, pp, &dummy, &present))
1848 	  return FALSE;
1849 	if (! present)
1850 	  {
1851 	    /* FIXME: This is just a guess.  */
1852 	    type = debug_make_int_type (dhandle, 4,
1853 					signedp ? FALSE : TRUE);
1854 	  }
1855 	else
1856 	  {
1857 	    *pp = hold;
1858 	    if (! ieee_read_type_index (info, pp, &type))
1859 	      return FALSE;
1860 	  }
1861 	type_bitsize = bitsize;
1862       }
1863       break;
1864 
1865     case 'n':
1866       /* Qualifier.  */
1867       {
1868 	bfd_vma kind;
1869 	debug_type t;
1870 
1871 	if (! ieee_read_number (info, pp, &kind)
1872 	    || ! ieee_read_type_index (info, pp, &t))
1873 	  return FALSE;
1874 
1875 	switch (kind)
1876 	  {
1877 	  default:
1878 	    ieee_error (info, ty_start, _("unsupported qualifier"));
1879 	    return FALSE;
1880 
1881 	  case 1:
1882 	    type = debug_make_const_type (dhandle, t);
1883 	    break;
1884 
1885 	  case 2:
1886 	    type = debug_make_volatile_type (dhandle, t);
1887 	    break;
1888 	  }
1889       }
1890       break;
1891 
1892     case 's':
1893       /* Set.  */
1894       {
1895 	bfd_vma size;
1896 	debug_type etype;
1897 
1898 	if (! ieee_read_number (info, pp, &size)
1899 	    || ! ieee_read_type_index (info, pp, &etype))
1900 	  return FALSE;
1901 
1902 	/* FIXME: We ignore the size.  */
1903 
1904 	type = debug_make_set_type (dhandle, etype, FALSE);
1905       }
1906       break;
1907 
1908     case 'x':
1909       /* Procedure with compiler dependencies.  */
1910       {
1911 	struct ieee_var *pv;
1912 	bfd_vma attr, frame_type, push_mask, nargs, level, father;
1913 	debug_type rtype;
1914 	debug_type *arg_types;
1915 	bfd_boolean varargs;
1916 	bfd_boolean present;
1917 
1918 	/* FIXME: We ignore some of this information.  */
1919 
1920 	pv = info->vars.vars + varindx;
1921 
1922 	if (! ieee_read_number (info, pp, &attr)
1923 	    || ! ieee_read_number (info, pp, &frame_type)
1924 	    || ! ieee_read_number (info, pp, &push_mask)
1925 	    || ! ieee_read_type_index (info, pp, &rtype)
1926 	    || ! ieee_read_number (info, pp, &nargs))
1927 	  return FALSE;
1928 	if (nargs == (bfd_vma) -1)
1929 	  {
1930 	    arg_types = NULL;
1931 	    varargs = FALSE;
1932 	  }
1933 	else
1934 	  {
1935 	    unsigned int i;
1936 
1937 	    arg_types = ((debug_type *)
1938 			 xmalloc ((nargs + 1) * sizeof *arg_types));
1939 	    for (i = 0; i < nargs; i++)
1940 	      if (! ieee_read_type_index (info, pp, arg_types + i))
1941 		return FALSE;
1942 
1943 	    /* If the last type is pointer to void, this is really a
1944                varargs function.  */
1945 	    varargs = FALSE;
1946 	    if (nargs > 0)
1947 	      {
1948 		debug_type last;
1949 
1950 		last = arg_types[nargs - 1];
1951 		if (debug_get_type_kind (dhandle, last) == DEBUG_KIND_POINTER
1952 		    && (debug_get_type_kind (dhandle,
1953 					     debug_get_target_type (dhandle,
1954 								    last))
1955 			== DEBUG_KIND_VOID))
1956 		  {
1957 		    --nargs;
1958 		    varargs = TRUE;
1959 		  }
1960 	      }
1961 
1962 	    /* If there are any pointer arguments, turn them into
1963                indirect types in case we later need to convert them to
1964                reference types.  */
1965 	    for (i = 0; i < nargs; i++)
1966 	      {
1967 		if (debug_get_type_kind (dhandle, arg_types[i])
1968 		    == DEBUG_KIND_POINTER)
1969 		  {
1970 		    if (arg_slots == NULL)
1971 		      {
1972 			arg_slots = ((debug_type *)
1973 				     xmalloc (nargs * sizeof *arg_slots));
1974 			memset (arg_slots, 0, nargs * sizeof *arg_slots);
1975 		      }
1976 		    arg_slots[i] = arg_types[i];
1977 		    arg_types[i] =
1978 		      debug_make_indirect_type (dhandle,
1979 						arg_slots + i,
1980 						(const char *) NULL);
1981 		  }
1982 	      }
1983 
1984 	    arg_types[nargs] = DEBUG_TYPE_NULL;
1985 	  }
1986 	if (! ieee_read_number (info, pp, &level)
1987 	    || ! ieee_read_optional_number (info, pp, &father, &present))
1988 	  return FALSE;
1989 
1990 	/* We can't distinguish between a global function and a static
1991            function.  */
1992 	pv->kind = IEEE_FUNCTION;
1993 
1994 	if (pv->namlen > 0
1995 	    && debug_get_type_kind (dhandle, rtype) == DEBUG_KIND_POINTER)
1996 	  {
1997 	    /* Set up the return type as an indirect type pointing to
1998                the variable slot, so that we can change it to a
1999                reference later if appropriate.  */
2000 	    pv->pslot = (debug_type *) xmalloc (sizeof *pv->pslot);
2001 	    *pv->pslot = rtype;
2002 	    rtype = debug_make_indirect_type (dhandle, pv->pslot,
2003 					      (const char *) NULL);
2004 	  }
2005 
2006 	type = debug_make_function_type (dhandle, rtype, arg_types, varargs);
2007       }
2008       break;
2009     }
2010 
2011   /* Record the type in the table.  */
2012 
2013   if (type == DEBUG_TYPE_NULL)
2014     return FALSE;
2015 
2016   info->vars.vars[varindx].type = type;
2017 
2018   if ((tag || typdef)
2019       && info->vars.vars[varindx].namlen > 0)
2020     {
2021       const char *name;
2022 
2023       name = savestring (info->vars.vars[varindx].name,
2024 			 info->vars.vars[varindx].namlen);
2025       if (typdef)
2026 	type = debug_name_type (dhandle, name, type);
2027       else if (tc == 'E' || tc == 'N')
2028 	type = debug_tag_type (dhandle, name, type);
2029       else
2030 	{
2031 	  struct ieee_tag *it;
2032 
2033 	  /* We must allocate all struct tags as indirect types, so
2034              that if we later see a definition of the tag as a C++
2035              record we can update the indirect slot and automatically
2036              change all the existing references.  */
2037 	  it = (struct ieee_tag *) xmalloc (sizeof *it);
2038 	  memset (it, 0, sizeof *it);
2039 	  it->next = info->tags;
2040 	  info->tags = it;
2041 	  it->name = name;
2042 	  it->slot = type;
2043 
2044 	  type = debug_make_indirect_type (dhandle, &it->slot, name);
2045 	  type = debug_tag_type (dhandle, name, type);
2046 
2047 	  it->type = type;
2048 	}
2049       if (type == NULL)
2050 	return FALSE;
2051     }
2052 
2053   info->types.types[typeindx].type = type;
2054   info->types.types[typeindx].arg_slots = arg_slots;
2055   info->types.types[typeindx].bitsize = type_bitsize;
2056 
2057   /* We may have already allocated type as an indirect type pointing
2058      to slot.  It does no harm to replace the indirect type with the
2059      real type.  Filling in slot as well handles the indirect types
2060      which are already hanging around.  */
2061   if (info->types.types[typeindx].pslot != NULL)
2062     *info->types.types[typeindx].pslot = type;
2063 
2064   return TRUE;
2065 }
2066 
2067 /* Parse an ATN record.  */
2068 
2069 static bfd_boolean
2070 parse_ieee_atn (struct ieee_info *info, const bfd_byte **pp)
2071 {
2072   const bfd_byte *atn_start, *atn_code_start;
2073   bfd_vma varindx;
2074   struct ieee_var *pvar;
2075   debug_type type;
2076   bfd_vma atn_code;
2077   void *dhandle;
2078   bfd_vma v, v2, v3, v4, v5;
2079   const char *name;
2080   unsigned long namlen;
2081   char *namcopy;
2082   bfd_boolean present;
2083   int blocktype;
2084 
2085   atn_start = *pp;
2086 
2087   if (! ieee_read_number (info, pp, &varindx)
2088       || ! ieee_read_type_index (info, pp, &type))
2089     return FALSE;
2090 
2091   atn_code_start = *pp;
2092 
2093   if (! ieee_read_number (info, pp, &atn_code))
2094     return FALSE;
2095 
2096   if (varindx == 0)
2097     {
2098       pvar = NULL;
2099       name = "";
2100       namlen = 0;
2101     }
2102   else if (varindx < 32)
2103     {
2104       /* The MRI compiler reportedly sometimes emits variable lifetime
2105          information for a register.  We just ignore it.  */
2106       if (atn_code == 9)
2107 	return ieee_read_number (info, pp, &v);
2108 
2109       ieee_error (info, atn_start, _("illegal variable index"));
2110       return FALSE;
2111     }
2112   else
2113     {
2114       varindx -= 32;
2115       if (varindx >= info->vars.alloc
2116 	  || info->vars.vars[varindx].name == NULL)
2117 	{
2118 	  /* The MRI compiler or linker sometimes omits the NN record
2119              for a pmisc record.  */
2120 	  if (atn_code == 62)
2121 	    {
2122 	      if (varindx >= info->vars.alloc)
2123 		{
2124 		  unsigned int alloc;
2125 
2126 		  alloc = info->vars.alloc;
2127 		  if (alloc == 0)
2128 		    alloc = 4;
2129 		  while (varindx >= alloc)
2130 		    alloc *= 2;
2131 		  info->vars.vars = ((struct ieee_var *)
2132 				     xrealloc (info->vars.vars,
2133 					       (alloc
2134 						* sizeof *info->vars.vars)));
2135 		  memset (info->vars.vars + info->vars.alloc, 0,
2136 			  ((alloc - info->vars.alloc)
2137 			   * sizeof *info->vars.vars));
2138 		  info->vars.alloc = alloc;
2139 		}
2140 
2141 	      pvar = info->vars.vars + varindx;
2142 	      pvar->name = "";
2143 	      pvar->namlen = 0;
2144 	    }
2145 	  else
2146 	    {
2147 	      ieee_error (info, atn_start, _("undefined variable in ATN"));
2148 	      return FALSE;
2149 	    }
2150 	}
2151 
2152       pvar = info->vars.vars + varindx;
2153 
2154       pvar->type = type;
2155 
2156       name = pvar->name;
2157       namlen = pvar->namlen;
2158     }
2159 
2160   dhandle = info->dhandle;
2161 
2162   /* If we are going to call debug_record_variable with a pointer
2163      type, change the type to an indirect type so that we can later
2164      change it to a reference type if we encounter a C++ pmisc 'R'
2165      record.  */
2166   if (pvar != NULL
2167       && type != DEBUG_TYPE_NULL
2168       && debug_get_type_kind (dhandle, type) == DEBUG_KIND_POINTER)
2169     {
2170       switch (atn_code)
2171 	{
2172 	case 1:
2173 	case 2:
2174 	case 3:
2175 	case 5:
2176 	case 8:
2177 	case 10:
2178 	  pvar->pslot = (debug_type *) xmalloc (sizeof *pvar->pslot);
2179 	  *pvar->pslot = type;
2180 	  type = debug_make_indirect_type (dhandle, pvar->pslot,
2181 					   (const char *) NULL);
2182 	  pvar->type = type;
2183 	  break;
2184 	}
2185     }
2186 
2187   switch (atn_code)
2188     {
2189     default:
2190       ieee_error (info, atn_code_start, _("unknown ATN type"));
2191       return FALSE;
2192 
2193     case 1:
2194       /* Automatic variable.  */
2195       if (! ieee_read_number (info, pp, &v))
2196 	return FALSE;
2197       namcopy = savestring (name, namlen);
2198       if (type == NULL)
2199 	type = debug_make_void_type (dhandle);
2200       if (pvar != NULL)
2201 	pvar->kind = IEEE_LOCAL;
2202       return debug_record_variable (dhandle, namcopy, type, DEBUG_LOCAL, v);
2203 
2204     case 2:
2205       /* Register variable.  */
2206       if (! ieee_read_number (info, pp, &v))
2207 	return FALSE;
2208       namcopy = savestring (name, namlen);
2209       if (type == NULL)
2210 	type = debug_make_void_type (dhandle);
2211       if (pvar != NULL)
2212 	pvar->kind = IEEE_LOCAL;
2213       return debug_record_variable (dhandle, namcopy, type, DEBUG_REGISTER,
2214 				    ieee_regno_to_genreg (info->abfd, v));
2215 
2216     case 3:
2217       /* Static variable.  */
2218       if (! ieee_require_asn (info, pp, &v))
2219 	return FALSE;
2220       namcopy = savestring (name, namlen);
2221       if (type == NULL)
2222 	type = debug_make_void_type (dhandle);
2223       if (info->blockstack.bsp <= info->blockstack.stack)
2224 	blocktype = 0;
2225       else
2226 	blocktype = info->blockstack.bsp[-1].kind;
2227       if (pvar != NULL)
2228 	{
2229 	  if (blocktype == 4 || blocktype == 6)
2230 	    pvar->kind = IEEE_LOCAL;
2231 	  else
2232 	    pvar->kind = IEEE_STATIC;
2233 	}
2234       return debug_record_variable (dhandle, namcopy, type,
2235 				    (blocktype == 4 || blocktype == 6
2236 				     ? DEBUG_LOCAL_STATIC
2237 				     : DEBUG_STATIC),
2238 				    v);
2239 
2240     case 4:
2241       /* External function.  We don't currently record these.  FIXME.  */
2242       if (pvar != NULL)
2243 	pvar->kind = IEEE_EXTERNAL;
2244       return TRUE;
2245 
2246     case 5:
2247       /* External variable.  We don't currently record these.  FIXME.  */
2248       if (pvar != NULL)
2249 	pvar->kind = IEEE_EXTERNAL;
2250       return TRUE;
2251 
2252     case 7:
2253       if (! ieee_read_number (info, pp, &v)
2254 	  || ! ieee_read_number (info, pp, &v2)
2255 	  || ! ieee_read_optional_number (info, pp, &v3, &present))
2256 	return FALSE;
2257       if (present)
2258 	{
2259 	  if (! ieee_read_optional_number (info, pp, &v4, &present))
2260 	    return FALSE;
2261 	}
2262 
2263       /* We just ignore the two optional fields in v3 and v4, since
2264          they are not defined.  */
2265 
2266       if (! ieee_require_asn (info, pp, &v3))
2267 	return FALSE;
2268 
2269       /* We have no way to record the column number.  FIXME.  */
2270 
2271       return debug_record_line (dhandle, v, v3);
2272 
2273     case 8:
2274       /* Global variable.  */
2275       if (! ieee_require_asn (info, pp, &v))
2276 	return FALSE;
2277       namcopy = savestring (name, namlen);
2278       if (type == NULL)
2279 	type = debug_make_void_type (dhandle);
2280       if (pvar != NULL)
2281 	pvar->kind = IEEE_GLOBAL;
2282       return debug_record_variable (dhandle, namcopy, type, DEBUG_GLOBAL, v);
2283 
2284     case 9:
2285       /* Variable lifetime information.  */
2286       if (! ieee_read_number (info, pp, &v))
2287 	return FALSE;
2288 
2289       /* We have no way to record this information.  FIXME.  */
2290       return TRUE;
2291 
2292     case 10:
2293       /* Locked register.  The spec says that there are two required
2294          fields, but at least on occasion the MRI compiler only emits
2295          one.  */
2296       if (! ieee_read_number (info, pp, &v)
2297 	  || ! ieee_read_optional_number (info, pp, &v2, &present))
2298 	return FALSE;
2299 
2300       /* I think this means a variable that is both in a register and
2301          a frame slot.  We ignore the frame slot.  FIXME.  */
2302 
2303       namcopy = savestring (name, namlen);
2304       if (type == NULL)
2305 	type = debug_make_void_type (dhandle);
2306       if (pvar != NULL)
2307 	pvar->kind = IEEE_LOCAL;
2308       return debug_record_variable (dhandle, namcopy, type, DEBUG_REGISTER, v);
2309 
2310     case 11:
2311       /* Reserved for FORTRAN common.  */
2312       ieee_error (info, atn_code_start, _("unsupported ATN11"));
2313 
2314       /* Return TRUE to keep going.  */
2315       return TRUE;
2316 
2317     case 12:
2318       /* Based variable.  */
2319       v3 = 0;
2320       v4 = 0x80;
2321       v5 = 0;
2322       if (! ieee_read_number (info, pp, &v)
2323 	  || ! ieee_read_number (info, pp, &v2)
2324 	  || ! ieee_read_optional_number (info, pp, &v3, &present))
2325 	return FALSE;
2326       if (present)
2327 	{
2328 	  if (! ieee_read_optional_number (info, pp, &v4, &present))
2329 	    return FALSE;
2330 	  if (present)
2331 	    {
2332 	      if (! ieee_read_optional_number (info, pp, &v5, &present))
2333 		return FALSE;
2334 	    }
2335 	}
2336 
2337       /* We have no way to record this information.  FIXME.  */
2338 
2339       ieee_error (info, atn_code_start, _("unsupported ATN12"));
2340 
2341       /* Return TRUE to keep going.  */
2342       return TRUE;
2343 
2344     case 16:
2345       /* Constant.  The description of this that I have is ambiguous,
2346          so I'm not going to try to implement it.  */
2347       if (! ieee_read_number (info, pp, &v)
2348 	  || ! ieee_read_optional_number (info, pp, &v2, &present))
2349 	return FALSE;
2350       if (present)
2351 	{
2352 	  if (! ieee_read_optional_number (info, pp, &v2, &present))
2353 	    return FALSE;
2354 	  if (present)
2355 	    {
2356 	      if (! ieee_read_optional_id (info, pp, &name, &namlen, &present))
2357 		return FALSE;
2358 	    }
2359 	}
2360 
2361       if ((ieee_record_enum_type) **pp == ieee_e2_first_byte_enum)
2362 	{
2363 	  if (! ieee_require_asn (info, pp, &v3))
2364 	    return FALSE;
2365 	}
2366 
2367       return TRUE;
2368 
2369     case 19:
2370       /* Static variable from assembler.  */
2371       v2 = 0;
2372       if (! ieee_read_number (info, pp, &v)
2373 	  || ! ieee_read_optional_number (info, pp, &v2, &present)
2374 	  || ! ieee_require_asn (info, pp, &v3))
2375 	return FALSE;
2376       namcopy = savestring (name, namlen);
2377       /* We don't really handle this correctly.  FIXME.  */
2378       return debug_record_variable (dhandle, namcopy,
2379 				    debug_make_void_type (dhandle),
2380 				    v2 != 0 ? DEBUG_GLOBAL : DEBUG_STATIC,
2381 				    v3);
2382 
2383     case 62:
2384       /* Procedure miscellaneous information.  */
2385     case 63:
2386       /* Variable miscellaneous information.  */
2387     case 64:
2388       /* Module miscellaneous information.  */
2389       if (! ieee_read_number (info, pp, &v)
2390 	  || ! ieee_read_number (info, pp, &v2)
2391 	  || ! ieee_read_optional_id (info, pp, &name, &namlen, &present))
2392 	return FALSE;
2393 
2394       if (atn_code == 62 && v == 80)
2395 	{
2396 	  if (present)
2397 	    {
2398 	      ieee_error (info, atn_code_start,
2399 			  _("unexpected string in C++ misc"));
2400 	      return FALSE;
2401 	    }
2402 	  return ieee_read_cxx_misc (info, pp, v2);
2403 	}
2404 
2405       /* We just ignore all of this stuff.  FIXME.  */
2406 
2407       for (; v2 > 0; --v2)
2408 	{
2409 	  switch ((ieee_record_enum_type) **pp)
2410 	    {
2411 	    default:
2412 	      ieee_error (info, *pp, _("bad misc record"));
2413 	      return FALSE;
2414 
2415 	    case ieee_at_record_enum:
2416 	      if (! ieee_require_atn65 (info, pp, &name, &namlen))
2417 		return FALSE;
2418 	      break;
2419 
2420 	    case ieee_e2_first_byte_enum:
2421 	      if (! ieee_require_asn (info, pp, &v3))
2422 		return FALSE;
2423 	      break;
2424 	    }
2425 	}
2426 
2427       return TRUE;
2428     }
2429 
2430   /*NOTREACHED*/
2431 }
2432 
2433 /* Handle C++ debugging miscellaneous records.  This is called for
2434    procedure miscellaneous records of type 80.  */
2435 
2436 static bfd_boolean
2437 ieee_read_cxx_misc (struct ieee_info *info, const bfd_byte **pp,
2438 		    unsigned long count)
2439 {
2440   const bfd_byte *start;
2441   bfd_vma category;
2442 
2443   start = *pp;
2444 
2445   /* Get the category of C++ misc record.  */
2446   if (! ieee_require_asn (info, pp, &category))
2447     return FALSE;
2448   --count;
2449 
2450   switch (category)
2451     {
2452     default:
2453       ieee_error (info, start, _("unrecognized C++ misc record"));
2454       return FALSE;
2455 
2456     case 'T':
2457       if (! ieee_read_cxx_class (info, pp, count))
2458 	return FALSE;
2459       break;
2460 
2461     case 'M':
2462       {
2463 	bfd_vma flags;
2464 	const char *name;
2465 	unsigned long namlen;
2466 
2467 	/* The IEEE spec indicates that the 'M' record only has a
2468            flags field.  The MRI compiler also emits the name of the
2469            function.  */
2470 
2471 	if (! ieee_require_asn (info, pp, &flags))
2472 	  return FALSE;
2473 	if (*pp < info->pend
2474 	    && (ieee_record_enum_type) **pp == ieee_at_record_enum)
2475 	  {
2476 	    if (! ieee_require_atn65 (info, pp, &name, &namlen))
2477 	      return FALSE;
2478 	  }
2479 
2480 	/* This is emitted for method functions, but I don't think we
2481            care very much.  It might help if it told us useful
2482            information like the class with which this function is
2483            associated, but it doesn't, so it isn't helpful.  */
2484       }
2485       break;
2486 
2487     case 'B':
2488       if (! ieee_read_cxx_defaults (info, pp, count))
2489 	return FALSE;
2490       break;
2491 
2492     case 'z':
2493       {
2494 	const char *name, *mangled, *class;
2495 	unsigned long namlen, mangledlen, classlen;
2496 	bfd_vma control;
2497 
2498 	/* Pointer to member.  */
2499 
2500 	if (! ieee_require_atn65 (info, pp, &name, &namlen)
2501 	    || ! ieee_require_atn65 (info, pp, &mangled, &mangledlen)
2502 	    || ! ieee_require_atn65 (info, pp, &class, &classlen)
2503 	    || ! ieee_require_asn (info, pp, &control))
2504 	  return FALSE;
2505 
2506 	/* FIXME: We should now track down name and change its type.  */
2507       }
2508       break;
2509 
2510     case 'R':
2511       if (! ieee_read_reference (info, pp))
2512 	return FALSE;
2513       break;
2514     }
2515 
2516   return TRUE;
2517 }
2518 
2519 /* Read a C++ class definition.  This is a pmisc type 80 record of
2520    category 'T'.  */
2521 
2522 static bfd_boolean
2523 ieee_read_cxx_class (struct ieee_info *info, const bfd_byte **pp,
2524 		     unsigned long count)
2525 {
2526   const bfd_byte *start;
2527   bfd_vma class;
2528   const char *tag;
2529   unsigned long taglen;
2530   struct ieee_tag *it;
2531   void *dhandle;
2532   debug_field *fields;
2533   unsigned int field_count, field_alloc;
2534   debug_baseclass *baseclasses;
2535   unsigned int baseclasses_count, baseclasses_alloc;
2536   const debug_field *structfields;
2537   struct ieee_method
2538     {
2539       const char *name;
2540       unsigned long namlen;
2541       debug_method_variant *variants;
2542       unsigned count;
2543       unsigned int alloc;
2544     } *methods;
2545   unsigned int methods_count, methods_alloc;
2546   debug_type vptrbase;
2547   bfd_boolean ownvptr;
2548   debug_method *dmethods;
2549 
2550   start = *pp;
2551 
2552   if (! ieee_require_asn (info, pp, &class))
2553     return FALSE;
2554   --count;
2555 
2556   if (! ieee_require_atn65 (info, pp, &tag, &taglen))
2557     return FALSE;
2558   --count;
2559 
2560   /* Find the C struct with this name.  */
2561   for (it = info->tags; it != NULL; it = it->next)
2562     if (it->name[0] == tag[0]
2563 	&& strncmp (it->name, tag, taglen) == 0
2564 	&& strlen (it->name) == taglen)
2565       break;
2566   if (it == NULL)
2567     {
2568       ieee_error (info, start, _("undefined C++ object"));
2569       return FALSE;
2570     }
2571 
2572   dhandle = info->dhandle;
2573 
2574   fields = NULL;
2575   field_count = 0;
2576   field_alloc = 0;
2577   baseclasses = NULL;
2578   baseclasses_count = 0;
2579   baseclasses_alloc = 0;
2580   methods = NULL;
2581   methods_count = 0;
2582   methods_alloc = 0;
2583   vptrbase = DEBUG_TYPE_NULL;
2584   ownvptr = FALSE;
2585 
2586   structfields = debug_get_fields (dhandle, it->type);
2587 
2588   while (count > 0)
2589     {
2590       bfd_vma id;
2591       const bfd_byte *spec_start;
2592 
2593       spec_start = *pp;
2594 
2595       if (! ieee_require_asn (info, pp, &id))
2596 	return FALSE;
2597       --count;
2598 
2599       switch (id)
2600 	{
2601 	default:
2602 	  ieee_error (info, spec_start, _("unrecognized C++ object spec"));
2603 	  return FALSE;
2604 
2605 	case 'b':
2606 	  {
2607 	    bfd_vma flags, cinline;
2608 	    const char *basename, *fieldname;
2609 	    unsigned long baselen, fieldlen;
2610 	    char *basecopy;
2611 	    debug_type basetype;
2612 	    bfd_vma bitpos;
2613 	    bfd_boolean virtualp;
2614 	    enum debug_visibility visibility;
2615 	    debug_baseclass baseclass;
2616 
2617 	    /* This represents a base or friend class.  */
2618 
2619 	    if (! ieee_require_asn (info, pp, &flags)
2620 		|| ! ieee_require_atn65 (info, pp, &basename, &baselen)
2621 		|| ! ieee_require_asn (info, pp, &cinline)
2622 		|| ! ieee_require_atn65 (info, pp, &fieldname, &fieldlen))
2623 	      return FALSE;
2624 	    count -= 4;
2625 
2626 	    /* We have no way of recording friend information, so we
2627                just ignore it.  */
2628 	    if ((flags & BASEFLAGS_FRIEND) != 0)
2629 	      break;
2630 
2631 	    /* I assume that either all of the members of the
2632                baseclass are included in the object, starting at the
2633                beginning of the object, or that none of them are
2634                included.  */
2635 
2636 	    if ((fieldlen == 0) == (cinline == 0))
2637 	      {
2638 		ieee_error (info, start, _("unsupported C++ object type"));
2639 		return FALSE;
2640 	      }
2641 
2642 	    basecopy = savestring (basename, baselen);
2643 	    basetype = debug_find_tagged_type (dhandle, basecopy,
2644 					       DEBUG_KIND_ILLEGAL);
2645 	    free (basecopy);
2646 	    if (basetype == DEBUG_TYPE_NULL)
2647 	      {
2648 		ieee_error (info, start, _("C++ base class not defined"));
2649 		return FALSE;
2650 	      }
2651 
2652 	    if (fieldlen == 0)
2653 	      bitpos = 0;
2654 	    else
2655 	      {
2656 		const debug_field *pf;
2657 
2658 		if (structfields == NULL)
2659 		  {
2660 		    ieee_error (info, start, _("C++ object has no fields"));
2661 		    return FALSE;
2662 		  }
2663 
2664 		for (pf = structfields; *pf != DEBUG_FIELD_NULL; pf++)
2665 		  {
2666 		    const char *fname;
2667 
2668 		    fname = debug_get_field_name (dhandle, *pf);
2669 		    if (fname == NULL)
2670 		      return FALSE;
2671 		    if (fname[0] == fieldname[0]
2672 			&& strncmp (fname, fieldname, fieldlen) == 0
2673 			&& strlen (fname) == fieldlen)
2674 		      break;
2675 		  }
2676 		if (*pf == DEBUG_FIELD_NULL)
2677 		  {
2678 		    ieee_error (info, start,
2679 				_("C++ base class not found in container"));
2680 		    return FALSE;
2681 		  }
2682 
2683 		bitpos = debug_get_field_bitpos (dhandle, *pf);
2684 	      }
2685 
2686 	    if ((flags & BASEFLAGS_VIRTUAL) != 0)
2687 	      virtualp = TRUE;
2688 	    else
2689 	      virtualp = FALSE;
2690 	    if ((flags & BASEFLAGS_PRIVATE) != 0)
2691 	      visibility = DEBUG_VISIBILITY_PRIVATE;
2692 	    else
2693 	      visibility = DEBUG_VISIBILITY_PUBLIC;
2694 
2695 	    baseclass = debug_make_baseclass (dhandle, basetype, bitpos,
2696 					      virtualp, visibility);
2697 	    if (baseclass == DEBUG_BASECLASS_NULL)
2698 	      return FALSE;
2699 
2700 	    if (baseclasses_count + 1 >= baseclasses_alloc)
2701 	      {
2702 		baseclasses_alloc += 10;
2703 		baseclasses = ((debug_baseclass *)
2704 			       xrealloc (baseclasses,
2705 					 (baseclasses_alloc
2706 					  * sizeof *baseclasses)));
2707 	      }
2708 
2709 	    baseclasses[baseclasses_count] = baseclass;
2710 	    ++baseclasses_count;
2711 	    baseclasses[baseclasses_count] = DEBUG_BASECLASS_NULL;
2712 	  }
2713 	  break;
2714 
2715 	case 'd':
2716 	  {
2717 	    bfd_vma flags;
2718 	    const char *fieldname, *mangledname;
2719 	    unsigned long fieldlen, mangledlen;
2720 	    char *fieldcopy;
2721 	    bfd_boolean staticp;
2722 	    debug_type ftype;
2723 	    const debug_field *pf = NULL;
2724 	    enum debug_visibility visibility;
2725 	    debug_field field;
2726 
2727 	    /* This represents a data member.  */
2728 
2729 	    if (! ieee_require_asn (info, pp, &flags)
2730 		|| ! ieee_require_atn65 (info, pp, &fieldname, &fieldlen)
2731 		|| ! ieee_require_atn65 (info, pp, &mangledname, &mangledlen))
2732 	      return FALSE;
2733 	    count -= 3;
2734 
2735 	    fieldcopy = savestring (fieldname, fieldlen);
2736 
2737 	    staticp = (flags & CXXFLAGS_STATIC) != 0 ? TRUE : FALSE;
2738 
2739 	    if (staticp)
2740 	      {
2741 		struct ieee_var *pv, *pvend;
2742 
2743 		/* See if we can find a definition for this variable.  */
2744 		pv = info->vars.vars;
2745 		pvend = pv + info->vars.alloc;
2746 		for (; pv < pvend; pv++)
2747 		  if (pv->namlen == mangledlen
2748 		      && strncmp (pv->name, mangledname, mangledlen) == 0)
2749 		    break;
2750 		if (pv < pvend)
2751 		  ftype = pv->type;
2752 		else
2753 		  {
2754 		    /* This can happen if the variable is never used.  */
2755 		    ftype = ieee_builtin_type (info, start,
2756 					       (unsigned int) builtin_void);
2757 		  }
2758 	      }
2759 	    else
2760 	      {
2761 		unsigned int findx;
2762 
2763 		if (structfields == NULL)
2764 		  {
2765 		    ieee_error (info, start, _("C++ object has no fields"));
2766 		    return FALSE;
2767 		  }
2768 
2769 		for (pf = structfields, findx = 0;
2770 		     *pf != DEBUG_FIELD_NULL;
2771 		     pf++, findx++)
2772 		  {
2773 		    const char *fname;
2774 
2775 		    fname = debug_get_field_name (dhandle, *pf);
2776 		    if (fname == NULL)
2777 		      return FALSE;
2778 		    if (fname[0] == mangledname[0]
2779 			&& strncmp (fname, mangledname, mangledlen) == 0
2780 			&& strlen (fname) == mangledlen)
2781 		      break;
2782 		  }
2783 		if (*pf == DEBUG_FIELD_NULL)
2784 		  {
2785 		    ieee_error (info, start,
2786 				_("C++ data member not found in container"));
2787 		    return FALSE;
2788 		  }
2789 
2790 		ftype = debug_get_field_type (dhandle, *pf);
2791 
2792 		if (debug_get_type_kind (dhandle, ftype) == DEBUG_KIND_POINTER)
2793 		  {
2794 		    /* We might need to convert this field into a
2795                        reference type later on, so make it an indirect
2796                        type.  */
2797 		    if (it->fslots == NULL)
2798 		      {
2799 			unsigned int fcnt;
2800 			const debug_field *pfcnt;
2801 
2802 			fcnt = 0;
2803 			for (pfcnt = structfields;
2804 			     *pfcnt != DEBUG_FIELD_NULL;
2805 			     pfcnt++)
2806 			  ++fcnt;
2807 			it->fslots = ((debug_type *)
2808 				      xmalloc (fcnt * sizeof *it->fslots));
2809 			memset (it->fslots, 0,
2810 				fcnt * sizeof *it->fslots);
2811 		      }
2812 
2813 		    if (ftype == DEBUG_TYPE_NULL)
2814 		      return FALSE;
2815 		    it->fslots[findx] = ftype;
2816 		    ftype = debug_make_indirect_type (dhandle,
2817 						      it->fslots + findx,
2818 						      (const char *) NULL);
2819 		  }
2820 	      }
2821 	    if (ftype == DEBUG_TYPE_NULL)
2822 	      return FALSE;
2823 
2824 	    switch (flags & CXXFLAGS_VISIBILITY)
2825 	      {
2826 	      default:
2827 		ieee_error (info, start, _("unknown C++ visibility"));
2828 		return FALSE;
2829 
2830 	      case CXXFLAGS_VISIBILITY_PUBLIC:
2831 		visibility = DEBUG_VISIBILITY_PUBLIC;
2832 		break;
2833 
2834 	      case CXXFLAGS_VISIBILITY_PRIVATE:
2835 		visibility = DEBUG_VISIBILITY_PRIVATE;
2836 		break;
2837 
2838 	      case CXXFLAGS_VISIBILITY_PROTECTED:
2839 		visibility = DEBUG_VISIBILITY_PROTECTED;
2840 		break;
2841 	      }
2842 
2843 	    if (staticp)
2844 	      {
2845 		char *mangledcopy;
2846 
2847 		mangledcopy = savestring (mangledname, mangledlen);
2848 
2849 		field = debug_make_static_member (dhandle, fieldcopy,
2850 						  ftype, mangledcopy,
2851 						  visibility);
2852 	      }
2853 	    else
2854 	      {
2855 		bfd_vma bitpos, bitsize;
2856 
2857 		bitpos = debug_get_field_bitpos (dhandle, *pf);
2858 		bitsize = debug_get_field_bitsize (dhandle, *pf);
2859 		if (bitpos == (bfd_vma) -1 || bitsize == (bfd_vma) -1)
2860 		  {
2861 		    ieee_error (info, start, _("bad C++ field bit pos or size"));
2862 		    return FALSE;
2863 		  }
2864 		field = debug_make_field (dhandle, fieldcopy, ftype, bitpos,
2865 					  bitsize, visibility);
2866 	      }
2867 
2868 	    if (field == DEBUG_FIELD_NULL)
2869 	      return FALSE;
2870 
2871 	    if (field_count + 1 >= field_alloc)
2872 	      {
2873 		field_alloc += 10;
2874 		fields = ((debug_field *)
2875 			  xrealloc (fields, field_alloc * sizeof *fields));
2876 	      }
2877 
2878 	    fields[field_count] = field;
2879 	    ++field_count;
2880 	    fields[field_count] = DEBUG_FIELD_NULL;
2881 	  }
2882 	  break;
2883 
2884 	case 'm':
2885 	case 'v':
2886 	  {
2887 	    bfd_vma flags, voffset, control;
2888 	    const char *name, *mangled;
2889 	    unsigned long namlen, mangledlen;
2890 	    struct ieee_var *pv, *pvend;
2891 	    debug_type type;
2892 	    enum debug_visibility visibility;
2893 	    bfd_boolean constp, volatilep;
2894 	    char *mangledcopy;
2895 	    debug_method_variant mv;
2896 	    struct ieee_method *meth;
2897 	    unsigned int im;
2898 
2899 	    if (! ieee_require_asn (info, pp, &flags)
2900 		|| ! ieee_require_atn65 (info, pp, &name, &namlen)
2901 		|| ! ieee_require_atn65 (info, pp, &mangled, &mangledlen))
2902 	      return FALSE;
2903 	    count -= 3;
2904 	    if (id != 'v')
2905 	      voffset = 0;
2906 	    else
2907 	      {
2908 		if (! ieee_require_asn (info, pp, &voffset))
2909 		  return FALSE;
2910 		--count;
2911 	      }
2912 	    if (! ieee_require_asn (info, pp, &control))
2913 	      return FALSE;
2914 	    --count;
2915 
2916 	    /* We just ignore the control information.  */
2917 
2918 	    /* We have no way to represent friend information, so we
2919                just ignore it.  */
2920 	    if ((flags & CXXFLAGS_FRIEND) != 0)
2921 	      break;
2922 
2923 	    /* We should already have seen a type for the function.  */
2924 	    pv = info->vars.vars;
2925 	    pvend = pv + info->vars.alloc;
2926 	    for (; pv < pvend; pv++)
2927 	      if (pv->namlen == mangledlen
2928 		  && strncmp (pv->name, mangled, mangledlen) == 0)
2929 		break;
2930 
2931 	    if (pv >= pvend)
2932 	      {
2933 		/* We won't have type information for this function if
2934 		   it is not included in this file.  We don't try to
2935 		   handle this case.  FIXME.  */
2936 		type = (debug_make_function_type
2937 			(dhandle,
2938 			 ieee_builtin_type (info, start,
2939 					    (unsigned int) builtin_void),
2940 			 (debug_type *) NULL,
2941 			 FALSE));
2942 	      }
2943 	    else
2944 	      {
2945 		debug_type return_type;
2946 		const debug_type *arg_types;
2947 		bfd_boolean varargs;
2948 
2949 		if (debug_get_type_kind (dhandle, pv->type)
2950 		    != DEBUG_KIND_FUNCTION)
2951 		  {
2952 		    ieee_error (info, start,
2953 				_("bad type for C++ method function"));
2954 		    return FALSE;
2955 		  }
2956 
2957 		return_type = debug_get_return_type (dhandle, pv->type);
2958 		arg_types = debug_get_parameter_types (dhandle, pv->type,
2959 						       &varargs);
2960 		if (return_type == DEBUG_TYPE_NULL || arg_types == NULL)
2961 		  {
2962 		    ieee_error (info, start,
2963 				_("no type information for C++ method function"));
2964 		    return FALSE;
2965 		  }
2966 
2967 		type = debug_make_method_type (dhandle, return_type, it->type,
2968 					       (debug_type *) arg_types,
2969 					       varargs);
2970 	      }
2971 	    if (type == DEBUG_TYPE_NULL)
2972 	      return FALSE;
2973 
2974 	    switch (flags & CXXFLAGS_VISIBILITY)
2975 	      {
2976 	      default:
2977 		ieee_error (info, start, _("unknown C++ visibility"));
2978 		return FALSE;
2979 
2980 	      case CXXFLAGS_VISIBILITY_PUBLIC:
2981 		visibility = DEBUG_VISIBILITY_PUBLIC;
2982 		break;
2983 
2984 	      case CXXFLAGS_VISIBILITY_PRIVATE:
2985 		visibility = DEBUG_VISIBILITY_PRIVATE;
2986 		break;
2987 
2988 	      case CXXFLAGS_VISIBILITY_PROTECTED:
2989 		visibility = DEBUG_VISIBILITY_PROTECTED;
2990 		break;
2991 	      }
2992 
2993 	    constp = (flags & CXXFLAGS_CONST) != 0 ? TRUE : FALSE;
2994 	    volatilep = (flags & CXXFLAGS_VOLATILE) != 0 ? TRUE : FALSE;
2995 
2996 	    mangledcopy = savestring (mangled, mangledlen);
2997 
2998 	    if ((flags & CXXFLAGS_STATIC) != 0)
2999 	      {
3000 		if (id == 'v')
3001 		  {
3002 		    ieee_error (info, start, _("C++ static virtual method"));
3003 		    return FALSE;
3004 		  }
3005 		mv = debug_make_static_method_variant (dhandle, mangledcopy,
3006 						       type, visibility,
3007 						       constp, volatilep);
3008 	      }
3009 	    else
3010 	      {
3011 		debug_type vcontext;
3012 
3013 		if (id != 'v')
3014 		  vcontext = DEBUG_TYPE_NULL;
3015 		else
3016 		  {
3017 		    /* FIXME: How can we calculate this correctly?  */
3018 		    vcontext = it->type;
3019 		  }
3020 		mv = debug_make_method_variant (dhandle, mangledcopy, type,
3021 						visibility, constp,
3022 						volatilep, voffset,
3023 						vcontext);
3024 	      }
3025 	    if (mv == DEBUG_METHOD_VARIANT_NULL)
3026 	      return FALSE;
3027 
3028 	    for (meth = methods, im = 0; im < methods_count; meth++, im++)
3029 	      if (meth->namlen == namlen
3030 		  && strncmp (meth->name, name, namlen) == 0)
3031 		break;
3032 	    if (im >= methods_count)
3033 	      {
3034 		if (methods_count >= methods_alloc)
3035 		  {
3036 		    methods_alloc += 10;
3037 		    methods = ((struct ieee_method *)
3038 			       xrealloc (methods,
3039 					 methods_alloc * sizeof *methods));
3040 		  }
3041 		methods[methods_count].name = name;
3042 		methods[methods_count].namlen = namlen;
3043 		methods[methods_count].variants = NULL;
3044 		methods[methods_count].count = 0;
3045 		methods[methods_count].alloc = 0;
3046 		meth = methods + methods_count;
3047 		++methods_count;
3048 	      }
3049 
3050 	    if (meth->count + 1 >= meth->alloc)
3051 	      {
3052 		meth->alloc += 10;
3053 		meth->variants = ((debug_method_variant *)
3054 				  xrealloc (meth->variants,
3055 					    (meth->alloc
3056 					     * sizeof *meth->variants)));
3057 	      }
3058 
3059 	    meth->variants[meth->count] = mv;
3060 	    ++meth->count;
3061 	    meth->variants[meth->count] = DEBUG_METHOD_VARIANT_NULL;
3062 	  }
3063 	  break;
3064 
3065 	case 'o':
3066 	  {
3067 	    bfd_vma spec;
3068 
3069 	    /* We have no way to store this information, so we just
3070 	       ignore it.  */
3071 	    if (! ieee_require_asn (info, pp, &spec))
3072 	      return FALSE;
3073 	    --count;
3074 	    if ((spec & 4) != 0)
3075 	      {
3076 		const char *filename;
3077 		unsigned long filenamlen;
3078 		bfd_vma lineno;
3079 
3080 		if (! ieee_require_atn65 (info, pp, &filename, &filenamlen)
3081 		    || ! ieee_require_asn (info, pp, &lineno))
3082 		  return FALSE;
3083 		count -= 2;
3084 	      }
3085 	    else if ((spec & 8) != 0)
3086 	      {
3087 		const char *mangled;
3088 		unsigned long mangledlen;
3089 
3090 		if (! ieee_require_atn65 (info, pp, &mangled, &mangledlen))
3091 		  return FALSE;
3092 		--count;
3093 	      }
3094 	    else
3095 	      {
3096 		ieee_error (info, start,
3097 			    _("unrecognized C++ object overhead spec"));
3098 		return FALSE;
3099 	      }
3100 	  }
3101 	  break;
3102 
3103 	case 'z':
3104 	  {
3105 	    const char *vname, *basename;
3106 	    unsigned long vnamelen, baselen;
3107 	    bfd_vma vsize, control;
3108 
3109 	    /* A virtual table pointer.  */
3110 
3111 	    if (! ieee_require_atn65 (info, pp, &vname, &vnamelen)
3112 		|| ! ieee_require_asn (info, pp, &vsize)
3113 		|| ! ieee_require_atn65 (info, pp, &basename, &baselen)
3114 		|| ! ieee_require_asn (info, pp, &control))
3115 	      return FALSE;
3116 	    count -= 4;
3117 
3118 	    /* We just ignore the control number.  We don't care what
3119 	       the virtual table name is.  We have no way to store the
3120 	       virtual table size, and I don't think we care anyhow.  */
3121 
3122 	    /* FIXME: We can't handle multiple virtual table pointers.  */
3123 
3124 	    if (baselen == 0)
3125 	      ownvptr = TRUE;
3126 	    else
3127 	      {
3128 		char *basecopy;
3129 
3130 		basecopy = savestring (basename, baselen);
3131 		vptrbase = debug_find_tagged_type (dhandle, basecopy,
3132 						   DEBUG_KIND_ILLEGAL);
3133 		free (basecopy);
3134 		if (vptrbase == DEBUG_TYPE_NULL)
3135 		  {
3136 		    ieee_error (info, start, _("undefined C++ vtable"));
3137 		    return FALSE;
3138 		  }
3139 	      }
3140 	  }
3141 	  break;
3142 	}
3143     }
3144 
3145   /* Now that we have seen all the method variants, we can call
3146      debug_make_method for each one.  */
3147 
3148   if (methods_count == 0)
3149     dmethods = NULL;
3150   else
3151     {
3152       unsigned int i;
3153 
3154       dmethods = ((debug_method *)
3155 		  xmalloc ((methods_count + 1) * sizeof *dmethods));
3156       for (i = 0; i < methods_count; i++)
3157 	{
3158 	  char *namcopy;
3159 
3160 	  namcopy = savestring (methods[i].name, methods[i].namlen);
3161 	  dmethods[i] = debug_make_method (dhandle, namcopy,
3162 					   methods[i].variants);
3163 	  if (dmethods[i] == DEBUG_METHOD_NULL)
3164 	    return FALSE;
3165 	}
3166       dmethods[i] = DEBUG_METHOD_NULL;
3167       free (methods);
3168     }
3169 
3170   /* The struct type was created as an indirect type pointing at
3171      it->slot.  We update it->slot to automatically update all
3172      references to this struct.  */
3173   it->slot = debug_make_object_type (dhandle,
3174 				     class != 'u',
3175 				     debug_get_type_size (dhandle,
3176 							  it->slot),
3177 				     fields, baseclasses, dmethods,
3178 				     vptrbase, ownvptr);
3179   if (it->slot == DEBUG_TYPE_NULL)
3180     return FALSE;
3181 
3182   return TRUE;
3183 }
3184 
3185 /* Read C++ default argument value and reference type information.  */
3186 
3187 static bfd_boolean
3188 ieee_read_cxx_defaults (struct ieee_info *info, const bfd_byte **pp,
3189 			unsigned long count)
3190 {
3191   const bfd_byte *start;
3192   const char *fnname;
3193   unsigned long fnlen;
3194   bfd_vma defcount;
3195 
3196   start = *pp;
3197 
3198   /* Giving the function name before the argument count is an addendum
3199      to the spec.  The function name is demangled, though, so this
3200      record must always refer to the current function.  */
3201 
3202   if (info->blockstack.bsp <= info->blockstack.stack
3203       || info->blockstack.bsp[-1].fnindx == (unsigned int) -1)
3204     {
3205       ieee_error (info, start, _("C++ default values not in a function"));
3206       return FALSE;
3207     }
3208 
3209   if (! ieee_require_atn65 (info, pp, &fnname, &fnlen)
3210       || ! ieee_require_asn (info, pp, &defcount))
3211     return FALSE;
3212   count -= 2;
3213 
3214   while (defcount-- > 0)
3215     {
3216       bfd_vma type, val;
3217       const char *strval;
3218       unsigned long strvallen;
3219 
3220       if (! ieee_require_asn (info, pp, &type))
3221 	return FALSE;
3222       --count;
3223 
3224       switch (type)
3225 	{
3226 	case 0:
3227 	case 4:
3228 	  break;
3229 
3230 	case 1:
3231 	case 2:
3232 	  if (! ieee_require_asn (info, pp, &val))
3233 	    return FALSE;
3234 	  --count;
3235 	  break;
3236 
3237 	case 3:
3238 	case 7:
3239 	  if (! ieee_require_atn65 (info, pp, &strval, &strvallen))
3240 	    return FALSE;
3241 	  --count;
3242 	  break;
3243 
3244 	default:
3245 	  ieee_error (info, start, _("unrecognized C++ default type"));
3246 	  return FALSE;
3247 	}
3248 
3249       /* We have no way to record the default argument values, so we
3250          just ignore them.  FIXME.  */
3251     }
3252 
3253   /* Any remaining arguments are indices of parameters that are really
3254      reference type.  */
3255   if (count > 0)
3256     {
3257       void *dhandle;
3258       debug_type *arg_slots;
3259 
3260       dhandle = info->dhandle;
3261       arg_slots = info->types.types[info->blockstack.bsp[-1].fnindx].arg_slots;
3262       while (count-- > 0)
3263 	{
3264 	  bfd_vma indx;
3265 	  debug_type target;
3266 
3267 	  if (! ieee_require_asn (info, pp, &indx))
3268 	    return FALSE;
3269 	  /* The index is 1 based.  */
3270 	  --indx;
3271 	  if (arg_slots == NULL
3272 	      || arg_slots[indx] == DEBUG_TYPE_NULL
3273 	      || (debug_get_type_kind (dhandle, arg_slots[indx])
3274 		  != DEBUG_KIND_POINTER))
3275 	    {
3276 	      ieee_error (info, start, _("reference parameter is not a pointer"));
3277 	      return FALSE;
3278 	    }
3279 
3280 	  target = debug_get_target_type (dhandle, arg_slots[indx]);
3281 	  arg_slots[indx] = debug_make_reference_type (dhandle, target);
3282 	  if (arg_slots[indx] == DEBUG_TYPE_NULL)
3283 	    return FALSE;
3284 	}
3285     }
3286 
3287   return TRUE;
3288 }
3289 
3290 /* Read a C++ reference definition.  */
3291 
3292 static bfd_boolean
3293 ieee_read_reference (struct ieee_info *info, const bfd_byte **pp)
3294 {
3295   const bfd_byte *start;
3296   bfd_vma flags;
3297   const char *class, *name;
3298   unsigned long classlen, namlen;
3299   debug_type *pslot;
3300   debug_type target;
3301 
3302   start = *pp;
3303 
3304   if (! ieee_require_asn (info, pp, &flags))
3305     return FALSE;
3306 
3307   /* Giving the class name before the member name is in an addendum to
3308      the spec.  */
3309   if (flags == 3)
3310     {
3311       if (! ieee_require_atn65 (info, pp, &class, &classlen))
3312 	return FALSE;
3313     }
3314 
3315   if (! ieee_require_atn65 (info, pp, &name, &namlen))
3316     return FALSE;
3317 
3318   pslot = NULL;
3319   if (flags != 3)
3320     {
3321       int pass;
3322 
3323       /* We search from the last variable indices to the first in
3324 	 hopes of finding local variables correctly.  We search the
3325 	 local variables on the first pass, and the global variables
3326 	 on the second.  FIXME: This probably won't work in all cases.
3327 	 On the other hand, I don't know what will.  */
3328       for (pass = 0; pass < 2; pass++)
3329 	{
3330 	  struct ieee_vars *vars;
3331 	  int i;
3332 	  struct ieee_var *pv = NULL;
3333 
3334 	  if (pass == 0)
3335 	    vars = &info->vars;
3336 	  else
3337 	    {
3338 	      vars = info->global_vars;
3339 	      if (vars == NULL)
3340 		break;
3341 	    }
3342 
3343 	  for (i = (int) vars->alloc - 1; i >= 0; i--)
3344 	    {
3345 	      bfd_boolean found;
3346 
3347 	      pv = vars->vars + i;
3348 
3349 	      if (pv->pslot == NULL
3350 		  || pv->namlen != namlen
3351 		  || strncmp (pv->name, name, namlen) != 0)
3352 		continue;
3353 
3354 	      found = FALSE;
3355 	      switch (flags)
3356 		{
3357 		default:
3358 		  ieee_error (info, start,
3359 			      _("unrecognized C++ reference type"));
3360 		  return FALSE;
3361 
3362 		case 0:
3363 		  /* Global variable or function.  */
3364 		  if (pv->kind == IEEE_GLOBAL
3365 		      || pv->kind == IEEE_EXTERNAL
3366 		      || pv->kind == IEEE_FUNCTION)
3367 		    found = TRUE;
3368 		  break;
3369 
3370 		case 1:
3371 		  /* Global static variable or function.  */
3372 		  if (pv->kind == IEEE_STATIC
3373 		      || pv->kind == IEEE_FUNCTION)
3374 		    found = TRUE;
3375 		  break;
3376 
3377 		case 2:
3378 		  /* Local variable.  */
3379 		  if (pv->kind == IEEE_LOCAL)
3380 		    found = TRUE;
3381 		  break;
3382 		}
3383 
3384 	      if (found)
3385 		break;
3386 	    }
3387 
3388 	  if (i >= 0)
3389 	    {
3390 	      pslot = pv->pslot;
3391 	      break;
3392 	    }
3393 	}
3394     }
3395   else
3396     {
3397       struct ieee_tag *it;
3398 
3399       for (it = info->tags; it != NULL; it = it->next)
3400 	{
3401 	  if (it->name[0] == class[0]
3402 	      && strncmp (it->name, class, classlen) == 0
3403 	      && strlen (it->name) == classlen)
3404 	    {
3405 	      if (it->fslots != NULL)
3406 		{
3407 		  const debug_field *pf;
3408 		  unsigned int findx;
3409 
3410 		  pf = debug_get_fields (info->dhandle, it->type);
3411 		  if (pf == NULL)
3412 		    {
3413 		      ieee_error (info, start,
3414 				  "C++ reference in class with no fields");
3415 		      return FALSE;
3416 		    }
3417 
3418 		  for (findx = 0; *pf != DEBUG_FIELD_NULL; pf++, findx++)
3419 		    {
3420 		      const char *fname;
3421 
3422 		      fname = debug_get_field_name (info->dhandle, *pf);
3423 		      if (fname == NULL)
3424 			return FALSE;
3425 		      if (strncmp (fname, name, namlen) == 0
3426 			  && strlen (fname) == namlen)
3427 			{
3428 			  pslot = it->fslots + findx;
3429 			  break;
3430 			}
3431 		    }
3432 		}
3433 
3434 	      break;
3435 	    }
3436 	}
3437     }
3438 
3439   if (pslot == NULL)
3440     {
3441       ieee_error (info, start, _("C++ reference not found"));
3442       return FALSE;
3443     }
3444 
3445   /* We allocated the type of the object as an indirect type pointing
3446      to *pslot, which we can now update to be a reference type.  */
3447   if (debug_get_type_kind (info->dhandle, *pslot) != DEBUG_KIND_POINTER)
3448     {
3449       ieee_error (info, start, _("C++ reference is not pointer"));
3450       return FALSE;
3451     }
3452 
3453   target = debug_get_target_type (info->dhandle, *pslot);
3454   *pslot = debug_make_reference_type (info->dhandle, target);
3455   if (*pslot == DEBUG_TYPE_NULL)
3456     return FALSE;
3457 
3458   return TRUE;
3459 }
3460 
3461 /* Require an ASN record.  */
3462 
3463 static bfd_boolean
3464 ieee_require_asn (struct ieee_info *info, const bfd_byte **pp, bfd_vma *pv)
3465 {
3466   const bfd_byte *start;
3467   ieee_record_enum_type c;
3468   bfd_vma varindx;
3469 
3470   start = *pp;
3471 
3472   c = (ieee_record_enum_type) **pp;
3473   if (c != ieee_e2_first_byte_enum)
3474     {
3475       ieee_error (info, start, _("missing required ASN"));
3476       return FALSE;
3477     }
3478   ++*pp;
3479 
3480   c = (ieee_record_enum_type) (((unsigned int) c << 8) | **pp);
3481   if (c != ieee_asn_record_enum)
3482     {
3483       ieee_error (info, start, _("missing required ASN"));
3484       return FALSE;
3485     }
3486   ++*pp;
3487 
3488   /* Just ignore the variable index.  */
3489   if (! ieee_read_number (info, pp, &varindx))
3490     return FALSE;
3491 
3492   return ieee_read_expression (info, pp, pv);
3493 }
3494 
3495 /* Require an ATN65 record.  */
3496 
3497 static bfd_boolean
3498 ieee_require_atn65 (struct ieee_info *info, const bfd_byte **pp,
3499 		    const char **pname, unsigned long *pnamlen)
3500 {
3501   const bfd_byte *start;
3502   ieee_record_enum_type c;
3503   bfd_vma name_indx, type_indx, atn_code;
3504 
3505   start = *pp;
3506 
3507   c = (ieee_record_enum_type) **pp;
3508   if (c != ieee_at_record_enum)
3509     {
3510       ieee_error (info, start, _("missing required ATN65"));
3511       return FALSE;
3512     }
3513   ++*pp;
3514 
3515   c = (ieee_record_enum_type) (((unsigned int) c << 8) | **pp);
3516   if (c != ieee_atn_record_enum)
3517     {
3518       ieee_error (info, start, _("missing required ATN65"));
3519       return FALSE;
3520     }
3521   ++*pp;
3522 
3523   if (! ieee_read_number (info, pp, &name_indx)
3524       || ! ieee_read_number (info, pp, &type_indx)
3525       || ! ieee_read_number (info, pp, &atn_code))
3526     return FALSE;
3527 
3528   /* Just ignore name_indx.  */
3529 
3530   if (type_indx != 0 || atn_code != 65)
3531     {
3532       ieee_error (info, start, _("bad ATN65 record"));
3533       return FALSE;
3534     }
3535 
3536   return ieee_read_id (info, pp, pname, pnamlen);
3537 }
3538 
3539 /* Convert a register number in IEEE debugging information into a
3540    generic register number.  */
3541 
3542 static int
3543 ieee_regno_to_genreg (bfd *abfd, int r)
3544 {
3545   switch (bfd_get_arch (abfd))
3546     {
3547     case bfd_arch_m68k:
3548       /* For some reasons stabs adds 2 to the floating point register
3549          numbers.  */
3550       if (r >= 16)
3551 	r += 2;
3552       break;
3553 
3554     case bfd_arch_i960:
3555       /* Stabs uses 0 to 15 for r0 to r15, 16 to 31 for g0 to g15, and
3556          32 to 35 for fp0 to fp3.  */
3557       --r;
3558       break;
3559 
3560     default:
3561       break;
3562     }
3563 
3564   return r;
3565 }
3566 
3567 /* Convert a generic register number to an IEEE specific one.  */
3568 
3569 static int
3570 ieee_genreg_to_regno (bfd *abfd, int r)
3571 {
3572   switch (bfd_get_arch (abfd))
3573     {
3574     case bfd_arch_m68k:
3575       /* For some reason stabs add 2 to the floating point register
3576          numbers.  */
3577       if (r >= 18)
3578 	r -= 2;
3579       break;
3580 
3581     case bfd_arch_i960:
3582       /* Stabs uses 0 to 15 for r0 to r15, 16 to 31 for g0 to g15, and
3583          32 to 35 for fp0 to fp3.  */
3584       ++r;
3585       break;
3586 
3587     default:
3588       break;
3589     }
3590 
3591   return r;
3592 }
3593 
3594 /* These routines build IEEE debugging information out of the generic
3595    debugging information.  */
3596 
3597 /* We build the IEEE debugging information byte by byte.  Rather than
3598    waste time copying data around, we use a linked list of buffers to
3599    hold the data.  */
3600 
3601 #define IEEE_BUFSIZE (490)
3602 
3603 struct ieee_buf
3604 {
3605   /* Next buffer.  */
3606   struct ieee_buf *next;
3607   /* Number of data bytes in this buffer.  */
3608   unsigned int c;
3609   /* Bytes.  */
3610   bfd_byte buf[IEEE_BUFSIZE];
3611 };
3612 
3613 /* A list of buffers.  */
3614 
3615 struct ieee_buflist
3616 {
3617   /* Head of list.  */
3618   struct ieee_buf *head;
3619   /* Tail--last buffer on list.  */
3620   struct ieee_buf *tail;
3621 };
3622 
3623 /* In order to generate the BB11 blocks required by the HP emulator,
3624    we keep track of ranges of addresses which correspond to a given
3625    compilation unit.  */
3626 
3627 struct ieee_range
3628 {
3629   /* Next range.  */
3630   struct ieee_range *next;
3631   /* Low address.  */
3632   bfd_vma low;
3633   /* High address.  */
3634   bfd_vma high;
3635 };
3636 
3637 /* This structure holds information for a class on the type stack.  */
3638 
3639 struct ieee_type_class
3640 {
3641   /* The name index in the debugging information.  */
3642   unsigned int indx;
3643   /* The pmisc records for the class.  */
3644   struct ieee_buflist pmiscbuf;
3645   /* The number of pmisc records.  */
3646   unsigned int pmisccount;
3647   /* The name of the class holding the virtual table, if not this
3648      class.  */
3649   const char *vclass;
3650   /* Whether this class holds its own virtual table.  */
3651   bfd_boolean ownvptr;
3652   /* The largest virtual table offset seen so far.  */
3653   bfd_vma voffset;
3654   /* The current method.  */
3655   const char *method;
3656   /* Additional pmisc records used to record fields of reference type.  */
3657   struct ieee_buflist refs;
3658 };
3659 
3660 /* This is how we store types for the writing routines.  Most types
3661    are simply represented by a type index.  */
3662 
3663 struct ieee_write_type
3664 {
3665   /* Type index.  */
3666   unsigned int indx;
3667   /* The size of the type, if known.  */
3668   unsigned int size;
3669   /* The name of the type, if any.  */
3670   const char *name;
3671   /* If this is a function or method type, we build the type here, and
3672      only add it to the output buffers if we need it.  */
3673   struct ieee_buflist fndef;
3674   /* If this is a struct, this is where the struct definition is
3675      built.  */
3676   struct ieee_buflist strdef;
3677   /* If this is a class, this is where the class information is built.  */
3678   struct ieee_type_class *classdef;
3679   /* Whether the type is unsigned.  */
3680   unsigned int unsignedp : 1;
3681   /* Whether this is a reference type.  */
3682   unsigned int referencep : 1;
3683   /* Whether this is in the local type block.  */
3684   unsigned int localp : 1;
3685   /* Whether this is a duplicate struct definition which we are
3686      ignoring.  */
3687   unsigned int ignorep : 1;
3688 };
3689 
3690 /* This is the type stack used by the debug writing routines.  FIXME:
3691    We could generate more efficient output if we remembered when we
3692    have output a particular type before.  */
3693 
3694 struct ieee_type_stack
3695 {
3696   /* Next entry on stack.  */
3697   struct ieee_type_stack *next;
3698   /* Type information.  */
3699   struct ieee_write_type type;
3700 };
3701 
3702 /* This is a list of associations between a name and some types.
3703    These are used for typedefs and tags.  */
3704 
3705 struct ieee_name_type
3706 {
3707   /* Next type for this name.  */
3708   struct ieee_name_type *next;
3709   /* ID number.  For a typedef, this is the index of the type to which
3710      this name is typedefed.  */
3711   unsigned int id;
3712   /* Type.  */
3713   struct ieee_write_type type;
3714   /* If this is a tag which has not yet been defined, this is the
3715      kind.  If the tag has been defined, this is DEBUG_KIND_ILLEGAL.  */
3716   enum debug_type_kind kind;
3717 };
3718 
3719 /* We use a hash table to associate names and types.  */
3720 
3721 struct ieee_name_type_hash_table
3722 {
3723   struct bfd_hash_table root;
3724 };
3725 
3726 struct ieee_name_type_hash_entry
3727 {
3728   struct bfd_hash_entry root;
3729   /* Information for this name.  */
3730   struct ieee_name_type *types;
3731 };
3732 
3733 /* This is a list of enums.  */
3734 
3735 struct ieee_defined_enum
3736 {
3737   /* Next enum.  */
3738   struct ieee_defined_enum *next;
3739   /* Type index.  */
3740   unsigned int indx;
3741   /* Whether this enum has been defined.  */
3742   bfd_boolean defined;
3743   /* Tag.  */
3744   const char *tag;
3745   /* Names.  */
3746   const char **names;
3747   /* Values.  */
3748   bfd_signed_vma *vals;
3749 };
3750 
3751 /* We keep a list of modified versions of types, so that we don't
3752    output them more than once.  */
3753 
3754 struct ieee_modified_type
3755 {
3756   /* Pointer to this type.  */
3757   unsigned int pointer;
3758   /* Function with unknown arguments returning this type.  */
3759   unsigned int function;
3760   /* Const version of this type.  */
3761   unsigned int const_qualified;
3762   /* Volatile version of this type.  */
3763   unsigned int volatile_qualified;
3764   /* List of arrays of this type of various bounds.  */
3765   struct ieee_modified_array_type *arrays;
3766 };
3767 
3768 /* A list of arrays bounds.  */
3769 
3770 struct ieee_modified_array_type
3771 {
3772   /* Next array bounds.  */
3773   struct ieee_modified_array_type *next;
3774   /* Type index with these bounds.  */
3775   unsigned int indx;
3776   /* Low bound.  */
3777   bfd_signed_vma low;
3778   /* High bound.  */
3779   bfd_signed_vma high;
3780 };
3781 
3782 /* This is a list of pending function parameter information.  We don't
3783    output them until we see the first block.  */
3784 
3785 struct ieee_pending_parm
3786 {
3787   /* Next pending parameter.  */
3788   struct ieee_pending_parm *next;
3789   /* Name.  */
3790   const char *name;
3791   /* Type index.  */
3792   unsigned int type;
3793   /* Whether the type is a reference.  */
3794   bfd_boolean referencep;
3795   /* Kind.  */
3796   enum debug_parm_kind kind;
3797   /* Value.  */
3798   bfd_vma val;
3799 };
3800 
3801 /* This is the handle passed down by debug_write.  */
3802 
3803 struct ieee_handle
3804 {
3805   /* BFD we are writing to.  */
3806   bfd *abfd;
3807   /* Whether we got an error in a subroutine called via traverse or
3808      map_over_sections.  */
3809   bfd_boolean error;
3810   /* Current data buffer list.  */
3811   struct ieee_buflist *current;
3812   /* Current data buffer.  */
3813   struct ieee_buf *curbuf;
3814   /* Filename of current compilation unit.  */
3815   const char *filename;
3816   /* Module name of current compilation unit.  */
3817   const char *modname;
3818   /* List of buffer for global types.  */
3819   struct ieee_buflist global_types;
3820   /* List of finished data buffers.  */
3821   struct ieee_buflist data;
3822   /* List of buffers for typedefs in the current compilation unit.  */
3823   struct ieee_buflist types;
3824   /* List of buffers for variables and functions in the current
3825      compilation unit.  */
3826   struct ieee_buflist vars;
3827   /* List of buffers for C++ class definitions in the current
3828      compilation unit.  */
3829   struct ieee_buflist cxx;
3830   /* List of buffers for line numbers in the current compilation unit.  */
3831   struct ieee_buflist linenos;
3832   /* Ranges for the current compilation unit.  */
3833   struct ieee_range *ranges;
3834   /* Ranges for all debugging information.  */
3835   struct ieee_range *global_ranges;
3836   /* Nested pending ranges.  */
3837   struct ieee_range *pending_ranges;
3838   /* Type stack.  */
3839   struct ieee_type_stack *type_stack;
3840   /* Next unallocated type index.  */
3841   unsigned int type_indx;
3842   /* Next unallocated name index.  */
3843   unsigned int name_indx;
3844   /* Typedefs.  */
3845   struct ieee_name_type_hash_table typedefs;
3846   /* Tags.  */
3847   struct ieee_name_type_hash_table tags;
3848   /* Enums.  */
3849   struct ieee_defined_enum *enums;
3850   /* Modified versions of types.  */
3851   struct ieee_modified_type *modified;
3852   /* Number of entries allocated in modified.  */
3853   unsigned int modified_alloc;
3854   /* 4 byte complex type.  */
3855   unsigned int complex_float_index;
3856   /* 8 byte complex type.  */
3857   unsigned int complex_double_index;
3858   /* The depth of block nesting.  This is 0 outside a function, and 1
3859      just after start_function is called.  */
3860   unsigned int block_depth;
3861   /* The name of the current function.  */
3862   const char *fnname;
3863   /* List of buffers for the type of the function we are currently
3864      writing out.  */
3865   struct ieee_buflist fntype;
3866   /* List of buffers for the parameters of the function we are
3867      currently writing out.  */
3868   struct ieee_buflist fnargs;
3869   /* Number of arguments written to fnargs.  */
3870   unsigned int fnargcount;
3871   /* Pending function parameters.  */
3872   struct ieee_pending_parm *pending_parms;
3873   /* Current line number filename.  */
3874   const char *lineno_filename;
3875   /* Line number name index.  */
3876   unsigned int lineno_name_indx;
3877   /* Filename of pending line number.  */
3878   const char *pending_lineno_filename;
3879   /* Pending line number.  */
3880   unsigned long pending_lineno;
3881   /* Address of pending line number.  */
3882   bfd_vma pending_lineno_addr;
3883   /* Highest address seen at end of procedure.  */
3884   bfd_vma highaddr;
3885 };
3886 
3887 static bfd_boolean ieee_init_buffer
3888   (struct ieee_handle *, struct ieee_buflist *);
3889 static bfd_boolean ieee_change_buffer
3890   (struct ieee_handle *, struct ieee_buflist *);
3891 static bfd_boolean ieee_append_buffer
3892   (struct ieee_handle *, struct ieee_buflist *, struct ieee_buflist *);
3893 static bfd_boolean ieee_real_write_byte (struct ieee_handle *, int);
3894 static bfd_boolean ieee_write_2bytes (struct ieee_handle *, int);
3895 static bfd_boolean ieee_write_number (struct ieee_handle *, bfd_vma);
3896 static bfd_boolean ieee_write_id (struct ieee_handle *, const char *);
3897 static bfd_boolean ieee_write_asn
3898   (struct ieee_handle *, unsigned int, bfd_vma);
3899 static bfd_boolean ieee_write_atn65
3900   (struct ieee_handle *, unsigned int, const char *);
3901 static bfd_boolean ieee_push_type
3902   (struct ieee_handle *, unsigned int, unsigned int, bfd_boolean,
3903    bfd_boolean);
3904 static unsigned int ieee_pop_type (struct ieee_handle *);
3905 static void ieee_pop_unused_type (struct ieee_handle *);
3906 static unsigned int ieee_pop_type_used (struct ieee_handle *, bfd_boolean);
3907 static bfd_boolean ieee_add_range
3908   (struct ieee_handle *, bfd_boolean, bfd_vma, bfd_vma);
3909 static bfd_boolean ieee_start_range (struct ieee_handle *, bfd_vma);
3910 static bfd_boolean ieee_end_range (struct ieee_handle *, bfd_vma);
3911 static bfd_boolean ieee_define_type
3912   (struct ieee_handle *, unsigned int, bfd_boolean, bfd_boolean);
3913 static bfd_boolean ieee_define_named_type
3914   (struct ieee_handle *, const char *, unsigned int, unsigned int,
3915    bfd_boolean, bfd_boolean, struct ieee_buflist *);
3916 static struct ieee_modified_type *ieee_get_modified_info
3917   (struct ieee_handle *, unsigned int);
3918 static struct bfd_hash_entry *ieee_name_type_newfunc
3919   (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
3920 static bfd_boolean ieee_write_undefined_tag
3921   (struct ieee_name_type_hash_entry *, void *);
3922 static bfd_boolean ieee_finish_compilation_unit (struct ieee_handle *);
3923 static void ieee_add_bb11_blocks (bfd *, asection *, void *);
3924 static bfd_boolean ieee_add_bb11
3925   (struct ieee_handle *, asection *, bfd_vma, bfd_vma);
3926 static bfd_boolean ieee_output_pending_parms (struct ieee_handle *);
3927 static unsigned int ieee_vis_to_flags (enum debug_visibility);
3928 static bfd_boolean ieee_class_method_var
3929   (struct ieee_handle *, const char *, enum debug_visibility, bfd_boolean,
3930    bfd_boolean, bfd_boolean, bfd_vma, bfd_boolean);
3931 
3932 static bfd_boolean ieee_start_compilation_unit (void *, const char *);
3933 static bfd_boolean ieee_start_source (void *, const char *);
3934 static bfd_boolean ieee_empty_type (void *);
3935 static bfd_boolean ieee_void_type (void *);
3936 static bfd_boolean ieee_int_type (void *, unsigned int, bfd_boolean);
3937 static bfd_boolean ieee_float_type (void *, unsigned int);
3938 static bfd_boolean ieee_complex_type (void *, unsigned int);
3939 static bfd_boolean ieee_bool_type (void *, unsigned int);
3940 static bfd_boolean ieee_enum_type
3941   (void *, const char *, const char **, bfd_signed_vma *);
3942 static bfd_boolean ieee_pointer_type (void *);
3943 static bfd_boolean ieee_function_type (void *, int, bfd_boolean);
3944 static bfd_boolean ieee_reference_type (void *);
3945 static bfd_boolean ieee_range_type (void *, bfd_signed_vma, bfd_signed_vma);
3946 static bfd_boolean ieee_array_type
3947   (void *, bfd_signed_vma, bfd_signed_vma, bfd_boolean);
3948 static bfd_boolean ieee_set_type (void *, bfd_boolean);
3949 static bfd_boolean ieee_offset_type (void *);
3950 static bfd_boolean ieee_method_type (void *, bfd_boolean, int, bfd_boolean);
3951 static bfd_boolean ieee_const_type (void *);
3952 static bfd_boolean ieee_volatile_type (void *);
3953 static bfd_boolean ieee_start_struct_type
3954   (void *, const char *, unsigned int, bfd_boolean, unsigned int);
3955 static bfd_boolean ieee_struct_field
3956   (void *, const char *, bfd_vma, bfd_vma, enum debug_visibility);
3957 static bfd_boolean ieee_end_struct_type (void *);
3958 static bfd_boolean ieee_start_class_type
3959   (void *, const char *, unsigned int, bfd_boolean, unsigned int, bfd_boolean,
3960    bfd_boolean);
3961 static bfd_boolean ieee_class_static_member
3962   (void *, const char *, const char *, enum debug_visibility);
3963 static bfd_boolean ieee_class_baseclass
3964   (void *, bfd_vma, bfd_boolean, enum debug_visibility);
3965 static bfd_boolean ieee_class_start_method (void *, const char *);
3966 static bfd_boolean ieee_class_method_variant
3967   (void *, const char *, enum debug_visibility, bfd_boolean, bfd_boolean,
3968    bfd_vma, bfd_boolean);
3969 static bfd_boolean ieee_class_static_method_variant
3970   (void *, const char *, enum debug_visibility, bfd_boolean, bfd_boolean);
3971 static bfd_boolean ieee_class_end_method (void *);
3972 static bfd_boolean ieee_end_class_type (void *);
3973 static bfd_boolean ieee_typedef_type (void *, const char *);
3974 static bfd_boolean ieee_tag_type
3975   (void *, const char *, unsigned int, enum debug_type_kind);
3976 static bfd_boolean ieee_typdef (void *, const char *);
3977 static bfd_boolean ieee_tag (void *, const char *);
3978 static bfd_boolean ieee_int_constant (void *, const char *, bfd_vma);
3979 static bfd_boolean ieee_float_constant (void *, const char *, double);
3980 static bfd_boolean ieee_typed_constant (void *, const char *, bfd_vma);
3981 static bfd_boolean ieee_variable
3982   (void *, const char *, enum debug_var_kind, bfd_vma);
3983 static bfd_boolean ieee_start_function (void *, const char *, bfd_boolean);
3984 static bfd_boolean ieee_function_parameter
3985   (void *, const char *, enum debug_parm_kind, bfd_vma);
3986 static bfd_boolean ieee_start_block (void *, bfd_vma);
3987 static bfd_boolean ieee_end_block (void *, bfd_vma);
3988 static bfd_boolean ieee_end_function (void *);
3989 static bfd_boolean ieee_lineno (void *, const char *, unsigned long, bfd_vma);
3990 
3991 static const struct debug_write_fns ieee_fns =
3992 {
3993   ieee_start_compilation_unit,
3994   ieee_start_source,
3995   ieee_empty_type,
3996   ieee_void_type,
3997   ieee_int_type,
3998   ieee_float_type,
3999   ieee_complex_type,
4000   ieee_bool_type,
4001   ieee_enum_type,
4002   ieee_pointer_type,
4003   ieee_function_type,
4004   ieee_reference_type,
4005   ieee_range_type,
4006   ieee_array_type,
4007   ieee_set_type,
4008   ieee_offset_type,
4009   ieee_method_type,
4010   ieee_const_type,
4011   ieee_volatile_type,
4012   ieee_start_struct_type,
4013   ieee_struct_field,
4014   ieee_end_struct_type,
4015   ieee_start_class_type,
4016   ieee_class_static_member,
4017   ieee_class_baseclass,
4018   ieee_class_start_method,
4019   ieee_class_method_variant,
4020   ieee_class_static_method_variant,
4021   ieee_class_end_method,
4022   ieee_end_class_type,
4023   ieee_typedef_type,
4024   ieee_tag_type,
4025   ieee_typdef,
4026   ieee_tag,
4027   ieee_int_constant,
4028   ieee_float_constant,
4029   ieee_typed_constant,
4030   ieee_variable,
4031   ieee_start_function,
4032   ieee_function_parameter,
4033   ieee_start_block,
4034   ieee_end_block,
4035   ieee_end_function,
4036   ieee_lineno
4037 };
4038 
4039 /* Initialize a buffer to be empty.  */
4040 
4041 static bfd_boolean
4042 ieee_init_buffer (struct ieee_handle *info ATTRIBUTE_UNUSED,
4043 		  struct ieee_buflist *buflist)
4044 {
4045   buflist->head = NULL;
4046   buflist->tail = NULL;
4047   return TRUE;
4048 }
4049 
4050 /* See whether a buffer list has any data.  */
4051 
4052 #define ieee_buffer_emptyp(buflist) ((buflist)->head == NULL)
4053 
4054 /* Change the current buffer to a specified buffer chain.  */
4055 
4056 static bfd_boolean
4057 ieee_change_buffer (struct ieee_handle *info, struct ieee_buflist *buflist)
4058 {
4059   if (buflist->head == NULL)
4060     {
4061       struct ieee_buf *buf;
4062 
4063       buf = (struct ieee_buf *) xmalloc (sizeof *buf);
4064       buf->next = NULL;
4065       buf->c = 0;
4066       buflist->head = buf;
4067       buflist->tail = buf;
4068     }
4069 
4070   info->current = buflist;
4071   info->curbuf = buflist->tail;
4072 
4073   return TRUE;
4074 }
4075 
4076 /* Append a buffer chain.  */
4077 
4078 static bfd_boolean
4079 ieee_append_buffer (struct ieee_handle *info ATTRIBUTE_UNUSED,
4080 		    struct ieee_buflist *mainbuf,
4081 		    struct ieee_buflist *newbuf)
4082 {
4083   if (newbuf->head != NULL)
4084     {
4085       if (mainbuf->head == NULL)
4086 	mainbuf->head = newbuf->head;
4087       else
4088 	mainbuf->tail->next = newbuf->head;
4089       mainbuf->tail = newbuf->tail;
4090     }
4091   return TRUE;
4092 }
4093 
4094 /* Write a byte into the buffer.  We use a macro for speed and a
4095    function for the complex cases.  */
4096 
4097 #define ieee_write_byte(info, b)				\
4098   ((info)->curbuf->c < IEEE_BUFSIZE				\
4099    ? ((info)->curbuf->buf[(info)->curbuf->c++] = (b), TRUE)	\
4100    : ieee_real_write_byte ((info), (b)))
4101 
4102 static bfd_boolean
4103 ieee_real_write_byte (struct ieee_handle *info, int b)
4104 {
4105   if (info->curbuf->c >= IEEE_BUFSIZE)
4106     {
4107       struct ieee_buf *n;
4108 
4109       n = (struct ieee_buf *) xmalloc (sizeof *n);
4110       n->next = NULL;
4111       n->c = 0;
4112       if (info->current->head == NULL)
4113 	info->current->head = n;
4114       else
4115 	info->current->tail->next = n;
4116       info->current->tail = n;
4117       info->curbuf = n;
4118     }
4119 
4120   info->curbuf->buf[info->curbuf->c] = b;
4121   ++info->curbuf->c;
4122 
4123   return TRUE;
4124 }
4125 
4126 /* Write out two bytes.  */
4127 
4128 static bfd_boolean
4129 ieee_write_2bytes (struct ieee_handle *info, int i)
4130 {
4131   return (ieee_write_byte (info, i >> 8)
4132 	  && ieee_write_byte (info, i & 0xff));
4133 }
4134 
4135 /* Write out an integer.  */
4136 
4137 static bfd_boolean
4138 ieee_write_number (struct ieee_handle *info, bfd_vma v)
4139 {
4140   bfd_vma t;
4141   bfd_byte ab[20];
4142   bfd_byte *p;
4143   unsigned int c;
4144 
4145   if (v <= (bfd_vma) ieee_number_end_enum)
4146     return ieee_write_byte (info, (int) v);
4147 
4148   t = v;
4149   p = ab + sizeof ab;
4150   while (t != 0)
4151     {
4152       *--p = t & 0xff;
4153       t >>= 8;
4154     }
4155   c = (ab + 20) - p;
4156 
4157   if (c > (unsigned int) (ieee_number_repeat_end_enum
4158 			  - ieee_number_repeat_start_enum))
4159     {
4160       fprintf (stderr, _("IEEE numeric overflow: 0x"));
4161       fprintf_vma (stderr, v);
4162       fprintf (stderr, "\n");
4163       return FALSE;
4164     }
4165 
4166   if (! ieee_write_byte (info, (int) ieee_number_repeat_start_enum + c))
4167     return FALSE;
4168   for (; c > 0; --c, ++p)
4169     {
4170       if (! ieee_write_byte (info, *p))
4171 	return FALSE;
4172     }
4173 
4174   return TRUE;
4175 }
4176 
4177 /* Write out a string.  */
4178 
4179 static bfd_boolean
4180 ieee_write_id (struct ieee_handle *info, const char *s)
4181 {
4182   unsigned int len;
4183 
4184   len = strlen (s);
4185   if (len <= 0x7f)
4186     {
4187       if (! ieee_write_byte (info, len))
4188 	return FALSE;
4189     }
4190   else if (len <= 0xff)
4191     {
4192       if (! ieee_write_byte (info, (int) ieee_extension_length_1_enum)
4193 	  || ! ieee_write_byte (info, len))
4194 	return FALSE;
4195     }
4196   else if (len <= 0xffff)
4197     {
4198       if (! ieee_write_byte (info, (int) ieee_extension_length_2_enum)
4199 	  || ! ieee_write_2bytes (info, len))
4200 	return FALSE;
4201     }
4202   else
4203     {
4204       fprintf (stderr, _("IEEE string length overflow: %u\n"), len);
4205       return FALSE;
4206     }
4207 
4208   for (; *s != '\0'; s++)
4209     if (! ieee_write_byte (info, *s))
4210       return FALSE;
4211 
4212   return TRUE;
4213 }
4214 
4215 /* Write out an ASN record.  */
4216 
4217 static bfd_boolean
4218 ieee_write_asn (struct ieee_handle *info, unsigned int indx, bfd_vma val)
4219 {
4220   return (ieee_write_2bytes (info, (int) ieee_asn_record_enum)
4221 	  && ieee_write_number (info, indx)
4222 	  && ieee_write_number (info, val));
4223 }
4224 
4225 /* Write out an ATN65 record.  */
4226 
4227 static bfd_boolean
4228 ieee_write_atn65 (struct ieee_handle *info, unsigned int indx, const char *s)
4229 {
4230   return (ieee_write_2bytes (info, (int) ieee_atn_record_enum)
4231 	  && ieee_write_number (info, indx)
4232 	  && ieee_write_number (info, 0)
4233 	  && ieee_write_number (info, 65)
4234 	  && ieee_write_id (info, s));
4235 }
4236 
4237 /* Push a type index onto the type stack.  */
4238 
4239 static bfd_boolean
4240 ieee_push_type (struct ieee_handle *info, unsigned int indx,
4241 		unsigned int size, bfd_boolean unsignedp, bfd_boolean localp)
4242 {
4243   struct ieee_type_stack *ts;
4244 
4245   ts = (struct ieee_type_stack *) xmalloc (sizeof *ts);
4246   memset (ts, 0, sizeof *ts);
4247 
4248   ts->type.indx = indx;
4249   ts->type.size = size;
4250   ts->type.unsignedp = unsignedp;
4251   ts->type.localp = localp;
4252 
4253   ts->next = info->type_stack;
4254   info->type_stack = ts;
4255 
4256   return TRUE;
4257 }
4258 
4259 /* Pop a type index off the type stack.  */
4260 
4261 static unsigned int
4262 ieee_pop_type (struct ieee_handle *info)
4263 {
4264   return ieee_pop_type_used (info, TRUE);
4265 }
4266 
4267 /* Pop an unused type index off the type stack.  */
4268 
4269 static void
4270 ieee_pop_unused_type (struct ieee_handle *info)
4271 {
4272   (void) ieee_pop_type_used (info, FALSE);
4273 }
4274 
4275 /* Pop a used or unused type index off the type stack.  */
4276 
4277 static unsigned int
4278 ieee_pop_type_used (struct ieee_handle *info, bfd_boolean used)
4279 {
4280   struct ieee_type_stack *ts;
4281   unsigned int ret;
4282 
4283   ts = info->type_stack;
4284   assert (ts != NULL);
4285 
4286   /* If this is a function type, and we need it, we need to append the
4287      actual definition to the typedef block now.  */
4288   if (used && ! ieee_buffer_emptyp (&ts->type.fndef))
4289     {
4290       struct ieee_buflist *buflist;
4291 
4292       if (ts->type.localp)
4293 	{
4294 	  /* Make sure we have started the types block.  */
4295 	  if (ieee_buffer_emptyp (&info->types))
4296 	    {
4297 	      if (! ieee_change_buffer (info, &info->types)
4298 		  || ! ieee_write_byte (info, (int) ieee_bb_record_enum)
4299 		  || ! ieee_write_byte (info, 1)
4300 		  || ! ieee_write_number (info, 0)
4301 		  || ! ieee_write_id (info, info->modname))
4302 		return FALSE;
4303 	    }
4304 	  buflist = &info->types;
4305 	}
4306       else
4307 	{
4308 	  /* Make sure we started the global type block.  */
4309 	  if (ieee_buffer_emptyp (&info->global_types))
4310 	    {
4311 	      if (! ieee_change_buffer (info, &info->global_types)
4312 		  || ! ieee_write_byte (info, (int) ieee_bb_record_enum)
4313 		  || ! ieee_write_byte (info, 2)
4314 		  || ! ieee_write_number (info, 0)
4315 		  || ! ieee_write_id (info, ""))
4316 		return FALSE;
4317 	    }
4318 	  buflist = &info->global_types;
4319 	}
4320 
4321       if (! ieee_append_buffer (info, buflist, &ts->type.fndef))
4322 	return FALSE;
4323     }
4324 
4325   ret = ts->type.indx;
4326   info->type_stack = ts->next;
4327   free (ts);
4328   return ret;
4329 }
4330 
4331 /* Add a range of bytes included in the current compilation unit.  */
4332 
4333 static bfd_boolean
4334 ieee_add_range (struct ieee_handle *info, bfd_boolean global, bfd_vma low,
4335 		bfd_vma high)
4336 {
4337   struct ieee_range **plist, *r, **pr;
4338 
4339   if (low == (bfd_vma) -1 || high == (bfd_vma) -1 || low == high)
4340     return TRUE;
4341 
4342   if (global)
4343     plist = &info->global_ranges;
4344   else
4345     plist = &info->ranges;
4346 
4347   for (r = *plist; r != NULL; r = r->next)
4348     {
4349       if (high >= r->low && low <= r->high)
4350 	{
4351 	  /* The new range overlaps r.  */
4352 	  if (low < r->low)
4353 	    r->low = low;
4354 	  if (high > r->high)
4355 	    r->high = high;
4356 	  pr = &r->next;
4357 	  while (*pr != NULL && (*pr)->low <= r->high)
4358 	    {
4359 	      struct ieee_range *n;
4360 
4361 	      if ((*pr)->high > r->high)
4362 		r->high = (*pr)->high;
4363 	      n = (*pr)->next;
4364 	      free (*pr);
4365 	      *pr = n;
4366 	    }
4367 	  return TRUE;
4368 	}
4369     }
4370 
4371   r = (struct ieee_range *) xmalloc (sizeof *r);
4372   memset (r, 0, sizeof *r);
4373 
4374   r->low = low;
4375   r->high = high;
4376 
4377   /* Store the ranges sorted by address.  */
4378   for (pr = plist; *pr != NULL; pr = &(*pr)->next)
4379     if ((*pr)->low > high)
4380       break;
4381   r->next = *pr;
4382   *pr = r;
4383 
4384   return TRUE;
4385 }
4386 
4387 /* Start a new range for which we only have the low address.  */
4388 
4389 static bfd_boolean
4390 ieee_start_range (struct ieee_handle *info, bfd_vma low)
4391 {
4392   struct ieee_range *r;
4393 
4394   r = (struct ieee_range *) xmalloc (sizeof *r);
4395   memset (r, 0, sizeof *r);
4396   r->low = low;
4397   r->next = info->pending_ranges;
4398   info->pending_ranges = r;
4399   return TRUE;
4400 }
4401 
4402 /* Finish a range started by ieee_start_range.  */
4403 
4404 static bfd_boolean
4405 ieee_end_range (struct ieee_handle *info, bfd_vma high)
4406 {
4407   struct ieee_range *r;
4408   bfd_vma low;
4409 
4410   assert (info->pending_ranges != NULL);
4411   r = info->pending_ranges;
4412   low = r->low;
4413   info->pending_ranges = r->next;
4414   free (r);
4415   return ieee_add_range (info, FALSE, low, high);
4416 }
4417 
4418 /* Start defining a type.  */
4419 
4420 static bfd_boolean
4421 ieee_define_type (struct ieee_handle *info, unsigned int size,
4422 		  bfd_boolean unsignedp, bfd_boolean localp)
4423 {
4424   return ieee_define_named_type (info, (const char *) NULL,
4425 				 (unsigned int) -1, size, unsignedp,
4426 				 localp, (struct ieee_buflist *) NULL);
4427 }
4428 
4429 /* Start defining a named type.  */
4430 
4431 static bfd_boolean
4432 ieee_define_named_type (struct ieee_handle *info, const char *name,
4433 			unsigned int indx, unsigned int size,
4434 			bfd_boolean unsignedp, bfd_boolean localp,
4435 			struct ieee_buflist *buflist)
4436 {
4437   unsigned int type_indx;
4438   unsigned int name_indx;
4439 
4440   if (indx != (unsigned int) -1)
4441     type_indx = indx;
4442   else
4443     {
4444       type_indx = info->type_indx;
4445       ++info->type_indx;
4446     }
4447 
4448   name_indx = info->name_indx;
4449   ++info->name_indx;
4450 
4451   if (name == NULL)
4452     name = "";
4453 
4454   /* If we were given a buffer, use it; otherwise, use either the
4455      local or the global type information, and make sure that the type
4456      block is started.  */
4457   if (buflist != NULL)
4458     {
4459       if (! ieee_change_buffer (info, buflist))
4460 	return FALSE;
4461     }
4462   else if (localp)
4463     {
4464       if (! ieee_buffer_emptyp (&info->types))
4465 	{
4466 	  if (! ieee_change_buffer (info, &info->types))
4467 	    return FALSE;
4468 	}
4469       else
4470 	{
4471 	  if (! ieee_change_buffer (info, &info->types)
4472 	      || ! ieee_write_byte (info, (int) ieee_bb_record_enum)
4473 	      || ! ieee_write_byte (info, 1)
4474 	      || ! ieee_write_number (info, 0)
4475 	      || ! ieee_write_id (info, info->modname))
4476 	    return FALSE;
4477 	}
4478     }
4479   else
4480     {
4481       if (! ieee_buffer_emptyp (&info->global_types))
4482 	{
4483 	  if (! ieee_change_buffer (info, &info->global_types))
4484 	    return FALSE;
4485 	}
4486       else
4487 	{
4488 	  if (! ieee_change_buffer (info, &info->global_types)
4489 	      || ! ieee_write_byte (info, (int) ieee_bb_record_enum)
4490 	      || ! ieee_write_byte (info, 2)
4491 	      || ! ieee_write_number (info, 0)
4492 	      || ! ieee_write_id (info, ""))
4493 	    return FALSE;
4494 	}
4495     }
4496 
4497   /* Push the new type on the type stack, write out an NN record, and
4498      write out the start of a TY record.  The caller will then finish
4499      the TY record.  */
4500   if (! ieee_push_type (info, type_indx, size, unsignedp, localp))
4501     return FALSE;
4502 
4503   return (ieee_write_byte (info, (int) ieee_nn_record)
4504 	  && ieee_write_number (info, name_indx)
4505 	  && ieee_write_id (info, name)
4506 	  && ieee_write_byte (info, (int) ieee_ty_record_enum)
4507 	  && ieee_write_number (info, type_indx)
4508 	  && ieee_write_byte (info, 0xce)
4509 	  && ieee_write_number (info, name_indx));
4510 }
4511 
4512 /* Get an entry to the list of modified versions of a type.  */
4513 
4514 static struct ieee_modified_type *
4515 ieee_get_modified_info (struct ieee_handle *info, unsigned int indx)
4516 {
4517   if (indx >= info->modified_alloc)
4518     {
4519       unsigned int nalloc;
4520 
4521       nalloc = info->modified_alloc;
4522       if (nalloc == 0)
4523 	nalloc = 16;
4524       while (indx >= nalloc)
4525 	nalloc *= 2;
4526       info->modified = ((struct ieee_modified_type *)
4527 			xrealloc (info->modified,
4528 				  nalloc * sizeof *info->modified));
4529       memset (info->modified + info->modified_alloc, 0,
4530 	      (nalloc - info->modified_alloc) * sizeof *info->modified);
4531       info->modified_alloc = nalloc;
4532     }
4533 
4534   return info->modified + indx;
4535 }
4536 
4537 /* Routines for the hash table mapping names to types.  */
4538 
4539 /* Initialize an entry in the hash table.  */
4540 
4541 static struct bfd_hash_entry *
4542 ieee_name_type_newfunc (struct bfd_hash_entry *entry,
4543 			struct bfd_hash_table *table, const char *string)
4544 {
4545   struct ieee_name_type_hash_entry *ret =
4546     (struct ieee_name_type_hash_entry *) entry;
4547 
4548   /* Allocate the structure if it has not already been allocated by a
4549      subclass.  */
4550   if (ret == NULL)
4551     ret = ((struct ieee_name_type_hash_entry *)
4552 	   bfd_hash_allocate (table, sizeof *ret));
4553   if (ret == NULL)
4554     return NULL;
4555 
4556   /* Call the allocation method of the superclass.  */
4557   ret = ((struct ieee_name_type_hash_entry *)
4558 	 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
4559   if (ret)
4560     {
4561       /* Set local fields.  */
4562       ret->types = NULL;
4563     }
4564 
4565   return (struct bfd_hash_entry *) ret;
4566 }
4567 
4568 /* Look up an entry in the hash table.  */
4569 
4570 #define ieee_name_type_hash_lookup(table, string, create, copy) \
4571   ((struct ieee_name_type_hash_entry *) \
4572    bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
4573 
4574 /* Traverse the hash table.  */
4575 
4576 #define ieee_name_type_hash_traverse(table, func, info)			\
4577   (bfd_hash_traverse							\
4578    (&(table)->root,							\
4579     (bfd_boolean (*) (struct bfd_hash_entry *, void *)) (func),		\
4580     (info)))
4581 
4582 /* The general routine to write out IEEE debugging information.  */
4583 
4584 bfd_boolean
4585 write_ieee_debugging_info (bfd *abfd, void *dhandle)
4586 {
4587   struct ieee_handle info;
4588   asection *s;
4589   const char *err;
4590   struct ieee_buf *b;
4591 
4592   memset (&info, 0, sizeof info);
4593   info.abfd = abfd;
4594   info.type_indx = 256;
4595   info.name_indx = 32;
4596 
4597   if (!bfd_hash_table_init (&info.typedefs.root, ieee_name_type_newfunc,
4598 			    sizeof (struct ieee_name_type_hash_entry))
4599       || !bfd_hash_table_init (&info.tags.root, ieee_name_type_newfunc,
4600 			       sizeof (struct ieee_name_type_hash_entry)))
4601     return FALSE;
4602 
4603   if (! ieee_init_buffer (&info, &info.global_types)
4604       || ! ieee_init_buffer (&info, &info.data)
4605       || ! ieee_init_buffer (&info, &info.types)
4606       || ! ieee_init_buffer (&info, &info.vars)
4607       || ! ieee_init_buffer (&info, &info.cxx)
4608       || ! ieee_init_buffer (&info, &info.linenos)
4609       || ! ieee_init_buffer (&info, &info.fntype)
4610       || ! ieee_init_buffer (&info, &info.fnargs))
4611     return FALSE;
4612 
4613   if (! debug_write (dhandle, &ieee_fns, (void *) &info))
4614     return FALSE;
4615 
4616   if (info.filename != NULL)
4617     {
4618       if (! ieee_finish_compilation_unit (&info))
4619 	return FALSE;
4620     }
4621 
4622   /* Put any undefined tags in the global typedef information.  */
4623   info.error = FALSE;
4624   ieee_name_type_hash_traverse (&info.tags,
4625 				ieee_write_undefined_tag,
4626 				(void *) &info);
4627   if (info.error)
4628     return FALSE;
4629 
4630   /* Prepend the global typedef information to the other data.  */
4631   if (! ieee_buffer_emptyp (&info.global_types))
4632     {
4633       /* The HP debugger seems to have a bug in which it ignores the
4634          last entry in the global types, so we add a dummy entry.  */
4635       if (! ieee_change_buffer (&info, &info.global_types)
4636 	  || ! ieee_write_byte (&info, (int) ieee_nn_record)
4637 	  || ! ieee_write_number (&info, info.name_indx)
4638 	  || ! ieee_write_id (&info, "")
4639 	  || ! ieee_write_byte (&info, (int) ieee_ty_record_enum)
4640 	  || ! ieee_write_number (&info, info.type_indx)
4641 	  || ! ieee_write_byte (&info, 0xce)
4642 	  || ! ieee_write_number (&info, info.name_indx)
4643 	  || ! ieee_write_number (&info, 'P')
4644 	  || ! ieee_write_number (&info, (int) builtin_void + 32)
4645 	  || ! ieee_write_byte (&info, (int) ieee_be_record_enum))
4646 	return FALSE;
4647 
4648       if (! ieee_append_buffer (&info, &info.global_types, &info.data))
4649 	return FALSE;
4650       info.data = info.global_types;
4651     }
4652 
4653   /* Make sure that we have declare BB11 blocks for each range in the
4654      file.  They are added to info->vars.  */
4655   info.error = FALSE;
4656   if (! ieee_init_buffer (&info, &info.vars))
4657     return FALSE;
4658   bfd_map_over_sections (abfd, ieee_add_bb11_blocks, (void *) &info);
4659   if (info.error)
4660     return FALSE;
4661   if (! ieee_buffer_emptyp (&info.vars))
4662     {
4663       if (! ieee_change_buffer (&info, &info.vars)
4664 	  || ! ieee_write_byte (&info, (int) ieee_be_record_enum))
4665 	return FALSE;
4666 
4667       if (! ieee_append_buffer (&info, &info.data, &info.vars))
4668 	return FALSE;
4669     }
4670 
4671   /* Now all the data is in info.data.  Write it out to the BFD.  We
4672      normally would need to worry about whether all the other sections
4673      are set up yet, but the IEEE backend will handle this particular
4674      case correctly regardless.  */
4675   if (ieee_buffer_emptyp (&info.data))
4676     {
4677       /* There is no debugging information.  */
4678       return TRUE;
4679     }
4680   err = NULL;
4681   s = bfd_make_section (abfd, ".debug");
4682   if (s == NULL)
4683     err = "bfd_make_section";
4684   if (err == NULL)
4685     {
4686       if (! bfd_set_section_flags (abfd, s, SEC_DEBUGGING | SEC_HAS_CONTENTS))
4687 	err = "bfd_set_section_flags";
4688     }
4689   if (err == NULL)
4690     {
4691       bfd_size_type size;
4692 
4693       size = 0;
4694       for (b = info.data.head; b != NULL; b = b->next)
4695 	size += b->c;
4696       if (! bfd_set_section_size (abfd, s, size))
4697 	err = "bfd_set_section_size";
4698     }
4699   if (err == NULL)
4700     {
4701       file_ptr offset;
4702 
4703       offset = 0;
4704       for (b = info.data.head; b != NULL; b = b->next)
4705 	{
4706 	  if (! bfd_set_section_contents (abfd, s, b->buf, offset, b->c))
4707 	    {
4708 	      err = "bfd_set_section_contents";
4709 	      break;
4710 	    }
4711 	  offset += b->c;
4712 	}
4713     }
4714 
4715   if (err != NULL)
4716     {
4717       fprintf (stderr, "%s: %s: %s\n", bfd_get_filename (abfd), err,
4718 	       bfd_errmsg (bfd_get_error ()));
4719       return FALSE;
4720     }
4721 
4722   bfd_hash_table_free (&info.typedefs.root);
4723   bfd_hash_table_free (&info.tags.root);
4724 
4725   return TRUE;
4726 }
4727 
4728 /* Write out information for an undefined tag.  This is called via
4729    ieee_name_type_hash_traverse.  */
4730 
4731 static bfd_boolean
4732 ieee_write_undefined_tag (struct ieee_name_type_hash_entry *h, void *p)
4733 {
4734   struct ieee_handle *info = (struct ieee_handle *) p;
4735   struct ieee_name_type *nt;
4736 
4737   for (nt = h->types; nt != NULL; nt = nt->next)
4738     {
4739       unsigned int name_indx;
4740       char code;
4741 
4742       if (nt->kind == DEBUG_KIND_ILLEGAL)
4743 	continue;
4744 
4745       if (ieee_buffer_emptyp (&info->global_types))
4746 	{
4747 	  if (! ieee_change_buffer (info, &info->global_types)
4748 	      || ! ieee_write_byte (info, (int) ieee_bb_record_enum)
4749 	      || ! ieee_write_byte (info, 2)
4750 	      || ! ieee_write_number (info, 0)
4751 	      || ! ieee_write_id (info, ""))
4752 	    {
4753 	      info->error = TRUE;
4754 	      return FALSE;
4755 	    }
4756 	}
4757       else
4758 	{
4759 	  if (! ieee_change_buffer (info, &info->global_types))
4760 	    {
4761 	      info->error = TRUE;
4762 	      return FALSE;
4763 	    }
4764 	}
4765 
4766       name_indx = info->name_indx;
4767       ++info->name_indx;
4768       if (! ieee_write_byte (info, (int) ieee_nn_record)
4769 	  || ! ieee_write_number (info, name_indx)
4770 	  || ! ieee_write_id (info, nt->type.name)
4771 	  || ! ieee_write_byte (info, (int) ieee_ty_record_enum)
4772 	  || ! ieee_write_number (info, nt->type.indx)
4773 	  || ! ieee_write_byte (info, 0xce)
4774 	  || ! ieee_write_number (info, name_indx))
4775 	{
4776 	  info->error = TRUE;
4777 	  return FALSE;
4778 	}
4779 
4780       switch (nt->kind)
4781 	{
4782 	default:
4783 	  abort ();
4784 	  info->error = TRUE;
4785 	  return FALSE;
4786 	case DEBUG_KIND_STRUCT:
4787 	case DEBUG_KIND_CLASS:
4788 	  code = 'S';
4789 	  break;
4790 	case DEBUG_KIND_UNION:
4791 	case DEBUG_KIND_UNION_CLASS:
4792 	  code = 'U';
4793 	  break;
4794 	case DEBUG_KIND_ENUM:
4795 	  code = 'E';
4796 	  break;
4797 	}
4798       if (! ieee_write_number (info, code)
4799 	  || ! ieee_write_number (info, 0))
4800 	{
4801 	  info->error = TRUE;
4802 	  return FALSE;
4803 	}
4804     }
4805 
4806   return TRUE;
4807 }
4808 
4809 /* Start writing out information for a compilation unit.  */
4810 
4811 static bfd_boolean
4812 ieee_start_compilation_unit (void *p, const char *filename)
4813 {
4814   struct ieee_handle *info = (struct ieee_handle *) p;
4815   const char *modname;
4816 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4817   const char *backslash;
4818 #endif
4819   char *c, *s;
4820   unsigned int nindx;
4821 
4822   if (info->filename != NULL)
4823     {
4824       if (! ieee_finish_compilation_unit (info))
4825 	return FALSE;
4826     }
4827 
4828   info->filename = filename;
4829   modname = strrchr (filename, '/');
4830 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4831   /* We could have a mixed forward/back slash case.  */
4832   backslash = strrchr (filename, '\\');
4833   if (modname == NULL || (backslash != NULL && backslash > modname))
4834     modname = backslash;
4835 #endif
4836 
4837   if (modname != NULL)
4838     ++modname;
4839 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4840   else if (filename[0] && filename[1] == ':')
4841     modname = filename + 2;
4842 #endif
4843   else
4844     modname = filename;
4845 
4846   c = xstrdup (modname);
4847   s = strrchr (c, '.');
4848   if (s != NULL)
4849     *s = '\0';
4850   info->modname = c;
4851 
4852   if (! ieee_init_buffer (info, &info->types)
4853       || ! ieee_init_buffer (info, &info->vars)
4854       || ! ieee_init_buffer (info, &info->cxx)
4855       || ! ieee_init_buffer (info, &info->linenos))
4856     return FALSE;
4857   info->ranges = NULL;
4858 
4859   /* Always include a BB1 and a BB3 block.  That is what the output of
4860      the MRI linker seems to look like.  */
4861   if (! ieee_change_buffer (info, &info->types)
4862       || ! ieee_write_byte (info, (int) ieee_bb_record_enum)
4863       || ! ieee_write_byte (info, 1)
4864       || ! ieee_write_number (info, 0)
4865       || ! ieee_write_id (info, info->modname))
4866     return FALSE;
4867 
4868   nindx = info->name_indx;
4869   ++info->name_indx;
4870   if (! ieee_change_buffer (info, &info->vars)
4871       || ! ieee_write_byte (info, (int) ieee_bb_record_enum)
4872       || ! ieee_write_byte (info, 3)
4873       || ! ieee_write_number (info, 0)
4874       || ! ieee_write_id (info, info->modname))
4875     return FALSE;
4876 
4877   return TRUE;
4878 }
4879 
4880 /* Finish up a compilation unit.  */
4881 
4882 static bfd_boolean
4883 ieee_finish_compilation_unit (struct ieee_handle *info)
4884 {
4885   struct ieee_range *r;
4886 
4887   if (! ieee_buffer_emptyp (&info->types))
4888     {
4889       if (! ieee_change_buffer (info, &info->types)
4890 	  || ! ieee_write_byte (info, (int) ieee_be_record_enum))
4891 	return FALSE;
4892     }
4893 
4894   if (! ieee_buffer_emptyp (&info->cxx))
4895     {
4896       /* Append any C++ information to the global function and
4897          variable information.  */
4898       assert (! ieee_buffer_emptyp (&info->vars));
4899       if (! ieee_change_buffer (info, &info->vars))
4900 	return FALSE;
4901 
4902       /* We put the pmisc records in a dummy procedure, just as the
4903          MRI compiler does.  */
4904       if (! ieee_write_byte (info, (int) ieee_bb_record_enum)
4905 	  || ! ieee_write_byte (info, 6)
4906 	  || ! ieee_write_number (info, 0)
4907 	  || ! ieee_write_id (info, "__XRYCPP")
4908 	  || ! ieee_write_number (info, 0)
4909 	  || ! ieee_write_number (info, 0)
4910 	  || ! ieee_write_number (info, info->highaddr - 1)
4911 	  || ! ieee_append_buffer (info, &info->vars, &info->cxx)
4912 	  || ! ieee_change_buffer (info, &info->vars)
4913 	  || ! ieee_write_byte (info, (int) ieee_be_record_enum)
4914 	  || ! ieee_write_number (info, info->highaddr - 1))
4915 	return FALSE;
4916     }
4917 
4918   if (! ieee_buffer_emptyp (&info->vars))
4919     {
4920       if (! ieee_change_buffer (info, &info->vars)
4921 	  || ! ieee_write_byte (info, (int) ieee_be_record_enum))
4922 	return FALSE;
4923     }
4924 
4925   if (info->pending_lineno_filename != NULL)
4926     {
4927       /* Force out the pending line number.  */
4928       if (! ieee_lineno ((void *) info, (const char *) NULL, 0, (bfd_vma) -1))
4929 	return FALSE;
4930     }
4931   if (! ieee_buffer_emptyp (&info->linenos))
4932     {
4933       if (! ieee_change_buffer (info, &info->linenos)
4934 	  || ! ieee_write_byte (info, (int) ieee_be_record_enum))
4935 	return FALSE;
4936       if (strcmp (info->filename, info->lineno_filename) != 0)
4937 	{
4938 	  /* We were not in the main file.  We just closed the
4939              included line number block, and now we must close the
4940              main line number block.  */
4941 	  if (! ieee_write_byte (info, (int) ieee_be_record_enum))
4942 	    return FALSE;
4943 	}
4944     }
4945 
4946   if (! ieee_append_buffer (info, &info->data, &info->types)
4947       || ! ieee_append_buffer (info, &info->data, &info->vars)
4948       || ! ieee_append_buffer (info, &info->data, &info->linenos))
4949     return FALSE;
4950 
4951   /* Build BB10/BB11 blocks based on the ranges we recorded.  */
4952   if (! ieee_change_buffer (info, &info->data))
4953     return FALSE;
4954 
4955   if (! ieee_write_byte (info, (int) ieee_bb_record_enum)
4956       || ! ieee_write_byte (info, 10)
4957       || ! ieee_write_number (info, 0)
4958       || ! ieee_write_id (info, info->modname)
4959       || ! ieee_write_id (info, "")
4960       || ! ieee_write_number (info, 0)
4961       || ! ieee_write_id (info, "GNU objcopy"))
4962     return FALSE;
4963 
4964   for (r = info->ranges; r != NULL; r = r->next)
4965     {
4966       bfd_vma low, high;
4967       asection *s;
4968       int kind;
4969 
4970       low = r->low;
4971       high = r->high;
4972 
4973       /* Find the section corresponding to this range.  */
4974       for (s = info->abfd->sections; s != NULL; s = s->next)
4975 	{
4976 	  if (bfd_get_section_vma (info->abfd, s) <= low
4977 	      && high <= (bfd_get_section_vma (info->abfd, s)
4978 			  + bfd_section_size (info->abfd, s)))
4979 	    break;
4980 	}
4981 
4982       if (s == NULL)
4983 	{
4984 	  /* Just ignore this range.  */
4985 	  continue;
4986 	}
4987 
4988       /* Coalesce ranges if it seems reasonable.  */
4989       while (r->next != NULL
4990 	     && high + 0x1000 >= r->next->low
4991 	     && (r->next->high
4992 		 <= (bfd_get_section_vma (info->abfd, s)
4993 		     + bfd_section_size (info->abfd, s))))
4994 	{
4995 	  r = r->next;
4996 	  high = r->high;
4997 	}
4998 
4999       if ((s->flags & SEC_CODE) != 0)
5000 	kind = 1;
5001       else if ((s->flags & SEC_READONLY) != 0)
5002 	kind = 3;
5003       else
5004 	kind = 2;
5005 
5006       if (! ieee_write_byte (info, (int) ieee_bb_record_enum)
5007 	  || ! ieee_write_byte (info, 11)
5008 	  || ! ieee_write_number (info, 0)
5009 	  || ! ieee_write_id (info, "")
5010 	  || ! ieee_write_number (info, kind)
5011 	  || ! ieee_write_number (info, s->index + IEEE_SECTION_NUMBER_BASE)
5012 	  || ! ieee_write_number (info, low)
5013 	  || ! ieee_write_byte (info, (int) ieee_be_record_enum)
5014 	  || ! ieee_write_number (info, high - low))
5015 	return FALSE;
5016 
5017       /* Add this range to the list of global ranges.  */
5018       if (! ieee_add_range (info, TRUE, low, high))
5019 	return FALSE;
5020     }
5021 
5022   if (! ieee_write_byte (info, (int) ieee_be_record_enum))
5023     return FALSE;
5024 
5025   return TRUE;
5026 }
5027 
5028 /* Add BB11 blocks describing each range that we have not already
5029    described.  */
5030 
5031 static void
5032 ieee_add_bb11_blocks (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *data)
5033 {
5034   struct ieee_handle *info = (struct ieee_handle *) data;
5035   bfd_vma low, high;
5036   struct ieee_range *r;
5037 
5038   low = bfd_get_section_vma (abfd, sec);
5039   high = low + bfd_section_size (abfd, sec);
5040 
5041   /* Find the first range at or after this section.  The ranges are
5042      sorted by address.  */
5043   for (r = info->global_ranges; r != NULL; r = r->next)
5044     if (r->high > low)
5045       break;
5046 
5047   while (low < high)
5048     {
5049       if (r == NULL || r->low >= high)
5050 	{
5051 	  if (! ieee_add_bb11 (info, sec, low, high))
5052 	    info->error = TRUE;
5053 	  return;
5054 	}
5055 
5056       if (low < r->low
5057 	  && r->low - low > 0x100)
5058 	{
5059 	  if (! ieee_add_bb11 (info, sec, low, r->low))
5060 	    {
5061 	      info->error = TRUE;
5062 	      return;
5063 	    }
5064 	}
5065       low = r->high;
5066 
5067       r = r->next;
5068     }
5069 }
5070 
5071 /* Add a single BB11 block for a range.  We add it to info->vars.  */
5072 
5073 static bfd_boolean
5074 ieee_add_bb11 (struct ieee_handle *info, asection *sec, bfd_vma low,
5075 	       bfd_vma high)
5076 {
5077   int kind;
5078 
5079   if (! ieee_buffer_emptyp (&info->vars))
5080     {
5081       if (! ieee_change_buffer (info, &info->vars))
5082 	return FALSE;
5083     }
5084   else
5085     {
5086       const char *filename, *modname;
5087 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5088       const char *backslash;
5089 #endif
5090       char *c, *s;
5091 
5092       /* Start the enclosing BB10 block.  */
5093       filename = bfd_get_filename (info->abfd);
5094       modname = strrchr (filename, '/');
5095 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5096       backslash = strrchr (filename, '\\');
5097       if (modname == NULL || (backslash != NULL && backslash > modname))
5098 	modname = backslash;
5099 #endif
5100 
5101       if (modname != NULL)
5102 	++modname;
5103 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5104       else if (filename[0] && filename[1] == ':')
5105 	modname = filename + 2;
5106 #endif
5107       else
5108 	modname = filename;
5109 
5110       c = xstrdup (modname);
5111       s = strrchr (c, '.');
5112       if (s != NULL)
5113 	*s = '\0';
5114 
5115       if (! ieee_change_buffer (info, &info->vars)
5116 	  || ! ieee_write_byte (info, (int) ieee_bb_record_enum)
5117 	  || ! ieee_write_byte (info, 10)
5118 	  || ! ieee_write_number (info, 0)
5119 	  || ! ieee_write_id (info, c)
5120 	  || ! ieee_write_id (info, "")
5121 	  || ! ieee_write_number (info, 0)
5122 	  || ! ieee_write_id (info, "GNU objcopy"))
5123 	return FALSE;
5124 
5125       free (c);
5126     }
5127 
5128   if ((sec->flags & SEC_CODE) != 0)
5129     kind = 1;
5130   else if ((sec->flags & SEC_READONLY) != 0)
5131     kind = 3;
5132   else
5133     kind = 2;
5134 
5135   if (! ieee_write_byte (info, (int) ieee_bb_record_enum)
5136       || ! ieee_write_byte (info, 11)
5137       || ! ieee_write_number (info, 0)
5138       || ! ieee_write_id (info, "")
5139       || ! ieee_write_number (info, kind)
5140       || ! ieee_write_number (info, sec->index + IEEE_SECTION_NUMBER_BASE)
5141       || ! ieee_write_number (info, low)
5142       || ! ieee_write_byte (info, (int) ieee_be_record_enum)
5143       || ! ieee_write_number (info, high - low))
5144     return FALSE;
5145 
5146   return TRUE;
5147 }
5148 
5149 /* Start recording information from a particular source file.  This is
5150    used to record which file defined which types, variables, etc.  It
5151    is not used for line numbers, since the lineno entry point passes
5152    down the file name anyhow.  IEEE debugging information doesn't seem
5153    to store this information anywhere.  */
5154 
5155 static bfd_boolean
5156 ieee_start_source (void *p ATTRIBUTE_UNUSED,
5157 		   const char *filename ATTRIBUTE_UNUSED)
5158 {
5159   return TRUE;
5160 }
5161 
5162 /* Make an empty type.  */
5163 
5164 static bfd_boolean
5165 ieee_empty_type (void *p)
5166 {
5167   struct ieee_handle *info = (struct ieee_handle *) p;
5168 
5169   return ieee_push_type (info, (int) builtin_unknown, 0, FALSE, FALSE);
5170 }
5171 
5172 /* Make a void type.  */
5173 
5174 static bfd_boolean
5175 ieee_void_type (void *p)
5176 {
5177   struct ieee_handle *info = (struct ieee_handle *) p;
5178 
5179   return ieee_push_type (info, (int) builtin_void, 0, FALSE, FALSE);
5180 }
5181 
5182 /* Make an integer type.  */
5183 
5184 static bfd_boolean
5185 ieee_int_type (void *p, unsigned int size, bfd_boolean unsignedp)
5186 {
5187   struct ieee_handle *info = (struct ieee_handle *) p;
5188   unsigned int indx;
5189 
5190   switch (size)
5191     {
5192     case 1:
5193       indx = (int) builtin_signed_char;
5194       break;
5195     case 2:
5196       indx = (int) builtin_signed_short_int;
5197       break;
5198     case 4:
5199       indx = (int) builtin_signed_long;
5200       break;
5201     case 8:
5202       indx = (int) builtin_signed_long_long;
5203       break;
5204     default:
5205       fprintf (stderr, _("IEEE unsupported integer type size %u\n"), size);
5206       return FALSE;
5207     }
5208 
5209   if (unsignedp)
5210     ++indx;
5211 
5212   return ieee_push_type (info, indx, size, unsignedp, FALSE);
5213 }
5214 
5215 /* Make a floating point type.  */
5216 
5217 static bfd_boolean
5218 ieee_float_type (void *p, unsigned int size)
5219 {
5220   struct ieee_handle *info = (struct ieee_handle *) p;
5221   unsigned int indx;
5222 
5223   switch (size)
5224     {
5225     case 4:
5226       indx = (int) builtin_float;
5227       break;
5228     case 8:
5229       indx = (int) builtin_double;
5230       break;
5231     case 12:
5232       /* FIXME: This size really depends upon the processor.  */
5233       indx = (int) builtin_long_double;
5234       break;
5235     case 16:
5236       indx = (int) builtin_long_long_double;
5237       break;
5238     default:
5239       fprintf (stderr, _("IEEE unsupported float type size %u\n"), size);
5240       return FALSE;
5241     }
5242 
5243   return ieee_push_type (info, indx, size, FALSE, FALSE);
5244 }
5245 
5246 /* Make a complex type.  */
5247 
5248 static bfd_boolean
5249 ieee_complex_type (void *p, unsigned int size)
5250 {
5251   struct ieee_handle *info = (struct ieee_handle *) p;
5252   char code;
5253 
5254   switch (size)
5255     {
5256     case 4:
5257       if (info->complex_float_index != 0)
5258 	return ieee_push_type (info, info->complex_float_index, size * 2,
5259 			       FALSE, FALSE);
5260       code = 'c';
5261       break;
5262     case 12:
5263     case 16:
5264       /* These cases can be output by gcc -gstabs.  Outputting the
5265          wrong type is better than crashing.  */
5266     case 8:
5267       if (info->complex_double_index != 0)
5268 	return ieee_push_type (info, info->complex_double_index, size * 2,
5269 			       FALSE, FALSE);
5270       code = 'd';
5271       break;
5272     default:
5273       fprintf (stderr, _("IEEE unsupported complex type size %u\n"), size);
5274       return FALSE;
5275     }
5276 
5277   /* FIXME: I don't know what the string is for.  */
5278   if (! ieee_define_type (info, size * 2, FALSE, FALSE)
5279       || ! ieee_write_number (info, code)
5280       || ! ieee_write_id (info, ""))
5281     return FALSE;
5282 
5283   if (size == 4)
5284     info->complex_float_index = info->type_stack->type.indx;
5285   else
5286     info->complex_double_index = info->type_stack->type.indx;
5287 
5288   return TRUE;
5289 }
5290 
5291 /* Make a boolean type.  IEEE doesn't support these, so we just make
5292    an integer type instead.  */
5293 
5294 static bfd_boolean
5295 ieee_bool_type (void *p, unsigned int size)
5296 {
5297   return ieee_int_type (p, size, TRUE);
5298 }
5299 
5300 /* Make an enumeration.  */
5301 
5302 static bfd_boolean
5303 ieee_enum_type (void *p, const char *tag, const char **names,
5304 		bfd_signed_vma *vals)
5305 {
5306   struct ieee_handle *info = (struct ieee_handle *) p;
5307   struct ieee_defined_enum *e;
5308   bfd_boolean localp, simple;
5309   unsigned int indx;
5310   int i = 0;
5311 
5312   localp = FALSE;
5313   indx = (unsigned int) -1;
5314   for (e = info->enums; e != NULL; e = e->next)
5315     {
5316       if (tag == NULL)
5317 	{
5318 	  if (e->tag != NULL)
5319 	    continue;
5320 	}
5321       else
5322 	{
5323 	  if (e->tag == NULL
5324 	      || tag[0] != e->tag[0]
5325 	      || strcmp (tag, e->tag) != 0)
5326 	    continue;
5327 	}
5328 
5329       if (! e->defined)
5330 	{
5331 	  /* This enum tag has been seen but not defined.  */
5332 	  indx = e->indx;
5333 	  break;
5334 	}
5335 
5336       if (names != NULL && e->names != NULL)
5337 	{
5338 	  for (i = 0; names[i] != NULL && e->names[i] != NULL; i++)
5339 	    {
5340 	      if (names[i][0] != e->names[i][0]
5341 		  || vals[i] != e->vals[i]
5342 		  || strcmp (names[i], e->names[i]) != 0)
5343 		break;
5344 	    }
5345 	}
5346 
5347       if ((names == NULL && e->names == NULL)
5348 	  || (names != NULL
5349 	      && e->names != NULL
5350 	      && names[i] == NULL
5351 	      && e->names[i] == NULL))
5352 	{
5353 	  /* We've seen this enum before.  */
5354 	  return ieee_push_type (info, e->indx, 0, TRUE, FALSE);
5355 	}
5356 
5357       if (tag != NULL)
5358 	{
5359 	  /* We've already seen an enum of the same name, so we must make
5360 	     sure to output this one locally.  */
5361 	  localp = TRUE;
5362 	  break;
5363 	}
5364     }
5365 
5366   /* If this is a simple enumeration, in which the values start at 0
5367      and always increment by 1, we can use type E.  Otherwise we must
5368      use type N.  */
5369 
5370   simple = TRUE;
5371   if (names != NULL)
5372     {
5373       for (i = 0; names[i] != NULL; i++)
5374 	{
5375 	  if (vals[i] != i)
5376 	    {
5377 	      simple = FALSE;
5378 	      break;
5379 	    }
5380 	}
5381     }
5382 
5383   if (! ieee_define_named_type (info, tag, indx, 0, TRUE, localp,
5384 				(struct ieee_buflist *) NULL)
5385       || ! ieee_write_number (info, simple ? 'E' : 'N'))
5386     return FALSE;
5387   if (simple)
5388     {
5389       /* FIXME: This is supposed to be the enumeration size, but we
5390          don't store that.  */
5391       if (! ieee_write_number (info, 4))
5392 	return FALSE;
5393     }
5394   if (names != NULL)
5395     {
5396       for (i = 0; names[i] != NULL; i++)
5397 	{
5398 	  if (! ieee_write_id (info, names[i]))
5399 	    return FALSE;
5400 	  if (! simple)
5401 	    {
5402 	      if (! ieee_write_number (info, vals[i]))
5403 		return FALSE;
5404 	    }
5405 	}
5406     }
5407 
5408   if (! localp)
5409     {
5410       if (indx == (unsigned int) -1)
5411 	{
5412 	  e = (struct ieee_defined_enum *) xmalloc (sizeof *e);
5413 	  memset (e, 0, sizeof *e);
5414 	  e->indx = info->type_stack->type.indx;
5415 	  e->tag = tag;
5416 
5417 	  e->next = info->enums;
5418 	  info->enums = e;
5419 	}
5420 
5421       e->names = names;
5422       e->vals = vals;
5423       e->defined = TRUE;
5424     }
5425 
5426   return TRUE;
5427 }
5428 
5429 /* Make a pointer type.  */
5430 
5431 static bfd_boolean
5432 ieee_pointer_type (void *p)
5433 {
5434   struct ieee_handle *info = (struct ieee_handle *) p;
5435   bfd_boolean localp;
5436   unsigned int indx;
5437   struct ieee_modified_type *m = NULL;
5438 
5439   localp = info->type_stack->type.localp;
5440   indx = ieee_pop_type (info);
5441 
5442   /* A pointer to a simple builtin type can be obtained by adding 32.
5443      FIXME: Will this be a short pointer, and will that matter?  */
5444   if (indx < 32)
5445     return ieee_push_type (info, indx + 32, 0, TRUE, FALSE);
5446 
5447   if (! localp)
5448     {
5449       m = ieee_get_modified_info (p, indx);
5450       if (m == NULL)
5451 	return FALSE;
5452 
5453       /* FIXME: The size should depend upon the architecture.  */
5454       if (m->pointer > 0)
5455 	return ieee_push_type (info, m->pointer, 4, TRUE, FALSE);
5456     }
5457 
5458   if (! ieee_define_type (info, 4, TRUE, localp)
5459       || ! ieee_write_number (info, 'P')
5460       || ! ieee_write_number (info, indx))
5461     return FALSE;
5462 
5463   if (! localp)
5464     m->pointer = info->type_stack->type.indx;
5465 
5466   return TRUE;
5467 }
5468 
5469 /* Make a function type.  This will be called for a method, but we
5470    don't want to actually add it to the type table in that case.  We
5471    handle this by defining the type in a private buffer, and only
5472    adding that buffer to the typedef block if we are going to use it.  */
5473 
5474 static bfd_boolean
5475 ieee_function_type (void *p, int argcount, bfd_boolean varargs)
5476 {
5477   struct ieee_handle *info = (struct ieee_handle *) p;
5478   bfd_boolean localp;
5479   unsigned int *args = NULL;
5480   int i;
5481   unsigned int retindx;
5482   struct ieee_buflist fndef;
5483   struct ieee_modified_type *m;
5484 
5485   localp = FALSE;
5486 
5487   if (argcount > 0)
5488     {
5489       args = (unsigned int *) xmalloc (argcount * sizeof *args);
5490       for (i = argcount - 1; i >= 0; i--)
5491 	{
5492 	  if (info->type_stack->type.localp)
5493 	    localp = TRUE;
5494 	  args[i] = ieee_pop_type (info);
5495 	}
5496     }
5497   else if (argcount < 0)
5498     varargs = FALSE;
5499 
5500   if (info->type_stack->type.localp)
5501     localp = TRUE;
5502   retindx = ieee_pop_type (info);
5503 
5504   m = NULL;
5505   if (argcount < 0 && ! localp)
5506     {
5507       m = ieee_get_modified_info (p, retindx);
5508       if (m == NULL)
5509 	return FALSE;
5510 
5511       if (m->function > 0)
5512 	return ieee_push_type (info, m->function, 0, TRUE, FALSE);
5513     }
5514 
5515   /* An attribute of 0x41 means that the frame and push mask are
5516      unknown.  */
5517   if (! ieee_init_buffer (info, &fndef)
5518       || ! ieee_define_named_type (info, (const char *) NULL,
5519 				   (unsigned int) -1, 0, TRUE, localp,
5520 				   &fndef)
5521       || ! ieee_write_number (info, 'x')
5522       || ! ieee_write_number (info, 0x41)
5523       || ! ieee_write_number (info, 0)
5524       || ! ieee_write_number (info, 0)
5525       || ! ieee_write_number (info, retindx)
5526       || ! ieee_write_number (info, (bfd_vma) argcount + (varargs ? 1 : 0)))
5527     return FALSE;
5528   if (argcount > 0)
5529     {
5530       for (i = 0; i < argcount; i++)
5531 	if (! ieee_write_number (info, args[i]))
5532 	  return FALSE;
5533       free (args);
5534     }
5535   if (varargs)
5536     {
5537       /* A varargs function is represented by writing out the last
5538          argument as type void *, although this makes little sense.  */
5539       if (! ieee_write_number (info, (bfd_vma) builtin_void + 32))
5540 	return FALSE;
5541     }
5542 
5543   if (! ieee_write_number (info, 0))
5544     return FALSE;
5545 
5546   /* We wrote the information into fndef, in case we don't need it.
5547      It will be appended to info->types by ieee_pop_type.  */
5548   info->type_stack->type.fndef = fndef;
5549 
5550   if (m != NULL)
5551     m->function = info->type_stack->type.indx;
5552 
5553   return TRUE;
5554 }
5555 
5556 /* Make a reference type.  */
5557 
5558 static bfd_boolean
5559 ieee_reference_type (void *p)
5560 {
5561   struct ieee_handle *info = (struct ieee_handle *) p;
5562 
5563   /* IEEE appears to record a normal pointer type, and then use a
5564      pmisc record to indicate that it is really a reference.  */
5565 
5566   if (! ieee_pointer_type (p))
5567     return FALSE;
5568   info->type_stack->type.referencep = TRUE;
5569   return TRUE;
5570 }
5571 
5572 /* Make a range type.  */
5573 
5574 static bfd_boolean
5575 ieee_range_type (void *p, bfd_signed_vma low, bfd_signed_vma high)
5576 {
5577   struct ieee_handle *info = (struct ieee_handle *) p;
5578   unsigned int size;
5579   bfd_boolean unsignedp, localp;
5580 
5581   size = info->type_stack->type.size;
5582   unsignedp = info->type_stack->type.unsignedp;
5583   localp = info->type_stack->type.localp;
5584   ieee_pop_unused_type (info);
5585   return (ieee_define_type (info, size, unsignedp, localp)
5586 	  && ieee_write_number (info, 'R')
5587 	  && ieee_write_number (info, (bfd_vma) low)
5588 	  && ieee_write_number (info, (bfd_vma) high)
5589 	  && ieee_write_number (info, unsignedp ? 0 : 1)
5590 	  && ieee_write_number (info, size));
5591 }
5592 
5593 /* Make an array type.  */
5594 
5595 static bfd_boolean
5596 ieee_array_type (void *p, bfd_signed_vma low, bfd_signed_vma high,
5597 		 bfd_boolean stringp ATTRIBUTE_UNUSED)
5598 {
5599   struct ieee_handle *info = (struct ieee_handle *) p;
5600   unsigned int eleindx;
5601   bfd_boolean localp;
5602   unsigned int size;
5603   struct ieee_modified_type *m = NULL;
5604   struct ieee_modified_array_type *a;
5605 
5606   /* IEEE does not store the range, so we just ignore it.  */
5607   ieee_pop_unused_type (info);
5608   localp = info->type_stack->type.localp;
5609   size = info->type_stack->type.size;
5610   eleindx = ieee_pop_type (info);
5611 
5612   /* If we don't know the range, treat the size as exactly one
5613      element.  */
5614   if (low < high)
5615     size *= (high - low) + 1;
5616 
5617   if (! localp)
5618     {
5619       m = ieee_get_modified_info (info, eleindx);
5620       if (m == NULL)
5621 	return FALSE;
5622 
5623       for (a = m->arrays; a != NULL; a = a->next)
5624 	{
5625 	  if (a->low == low && a->high == high)
5626 	    return ieee_push_type (info, a->indx, size, FALSE, FALSE);
5627 	}
5628     }
5629 
5630   if (! ieee_define_type (info, size, FALSE, localp)
5631       || ! ieee_write_number (info, low == 0 ? 'Z' : 'C')
5632       || ! ieee_write_number (info, eleindx))
5633     return FALSE;
5634   if (low != 0)
5635     {
5636       if (! ieee_write_number (info, low))
5637 	return FALSE;
5638     }
5639 
5640   if (! ieee_write_number (info, high + 1))
5641     return FALSE;
5642 
5643   if (! localp)
5644     {
5645       a = (struct ieee_modified_array_type *) xmalloc (sizeof *a);
5646       memset (a, 0, sizeof *a);
5647 
5648       a->indx = info->type_stack->type.indx;
5649       a->low = low;
5650       a->high = high;
5651 
5652       a->next = m->arrays;
5653       m->arrays = a;
5654     }
5655 
5656   return TRUE;
5657 }
5658 
5659 /* Make a set type.  */
5660 
5661 static bfd_boolean
5662 ieee_set_type (void *p, bfd_boolean bitstringp ATTRIBUTE_UNUSED)
5663 {
5664   struct ieee_handle *info = (struct ieee_handle *) p;
5665   bfd_boolean localp;
5666   unsigned int eleindx;
5667 
5668   localp = info->type_stack->type.localp;
5669   eleindx = ieee_pop_type (info);
5670 
5671   /* FIXME: We don't know the size, so we just use 4.  */
5672 
5673   return (ieee_define_type (info, 0, TRUE, localp)
5674 	  && ieee_write_number (info, 's')
5675 	  && ieee_write_number (info, 4)
5676 	  && ieee_write_number (info, eleindx));
5677 }
5678 
5679 /* Make an offset type.  */
5680 
5681 static bfd_boolean
5682 ieee_offset_type (void *p)
5683 {
5684   struct ieee_handle *info = (struct ieee_handle *) p;
5685   unsigned int targetindx, baseindx;
5686 
5687   targetindx = ieee_pop_type (info);
5688   baseindx = ieee_pop_type (info);
5689 
5690   /* FIXME: The MRI C++ compiler does not appear to generate any
5691      useful type information about an offset type.  It just records a
5692      pointer to member as an integer.  The MRI/HP IEEE spec does
5693      describe a pmisc record which can be used for a pointer to
5694      member.  Unfortunately, it does not describe the target type,
5695      which seems pretty important.  I'm going to punt this for now.  */
5696 
5697   return ieee_int_type (p, 4, TRUE);
5698 }
5699 
5700 /* Make a method type.  */
5701 
5702 static bfd_boolean
5703 ieee_method_type (void *p, bfd_boolean domain, int argcount,
5704 		  bfd_boolean varargs)
5705 {
5706   struct ieee_handle *info = (struct ieee_handle *) p;
5707 
5708   /* FIXME: The MRI/HP IEEE spec defines a pmisc record to use for a
5709      method, but the definition is incomplete.  We just output an 'x'
5710      type.  */
5711 
5712   if (domain)
5713     ieee_pop_unused_type (info);
5714 
5715   return ieee_function_type (p, argcount, varargs);
5716 }
5717 
5718 /* Make a const qualified type.  */
5719 
5720 static bfd_boolean
5721 ieee_const_type (void *p)
5722 {
5723   struct ieee_handle *info = (struct ieee_handle *) p;
5724   unsigned int size;
5725   bfd_boolean unsignedp, localp;
5726   unsigned int indx;
5727   struct ieee_modified_type *m = NULL;
5728 
5729   size = info->type_stack->type.size;
5730   unsignedp = info->type_stack->type.unsignedp;
5731   localp = info->type_stack->type.localp;
5732   indx = ieee_pop_type (info);
5733 
5734   if (! localp)
5735     {
5736       m = ieee_get_modified_info (info, indx);
5737       if (m == NULL)
5738 	return FALSE;
5739 
5740       if (m->const_qualified > 0)
5741 	return ieee_push_type (info, m->const_qualified, size, unsignedp,
5742 			       FALSE);
5743     }
5744 
5745   if (! ieee_define_type (info, size, unsignedp, localp)
5746       || ! ieee_write_number (info, 'n')
5747       || ! ieee_write_number (info, 1)
5748       || ! ieee_write_number (info, indx))
5749     return FALSE;
5750 
5751   if (! localp)
5752     m->const_qualified = info->type_stack->type.indx;
5753 
5754   return TRUE;
5755 }
5756 
5757 /* Make a volatile qualified type.  */
5758 
5759 static bfd_boolean
5760 ieee_volatile_type (void *p)
5761 {
5762   struct ieee_handle *info = (struct ieee_handle *) p;
5763   unsigned int size;
5764   bfd_boolean unsignedp, localp;
5765   unsigned int indx;
5766   struct ieee_modified_type *m = NULL;
5767 
5768   size = info->type_stack->type.size;
5769   unsignedp = info->type_stack->type.unsignedp;
5770   localp = info->type_stack->type.localp;
5771   indx = ieee_pop_type (info);
5772 
5773   if (! localp)
5774     {
5775       m = ieee_get_modified_info (info, indx);
5776       if (m == NULL)
5777 	return FALSE;
5778 
5779       if (m->volatile_qualified > 0)
5780 	return ieee_push_type (info, m->volatile_qualified, size, unsignedp,
5781 			       FALSE);
5782     }
5783 
5784   if (! ieee_define_type (info, size, unsignedp, localp)
5785       || ! ieee_write_number (info, 'n')
5786       || ! ieee_write_number (info, 2)
5787       || ! ieee_write_number (info, indx))
5788     return FALSE;
5789 
5790   if (! localp)
5791     m->volatile_qualified = info->type_stack->type.indx;
5792 
5793   return TRUE;
5794 }
5795 
5796 /* Convert an enum debug_visibility into a CXXFLAGS value.  */
5797 
5798 static unsigned int
5799 ieee_vis_to_flags (enum debug_visibility visibility)
5800 {
5801   switch (visibility)
5802     {
5803     default:
5804       abort ();
5805     case DEBUG_VISIBILITY_PUBLIC:
5806       return CXXFLAGS_VISIBILITY_PUBLIC;
5807     case DEBUG_VISIBILITY_PRIVATE:
5808       return CXXFLAGS_VISIBILITY_PRIVATE;
5809     case DEBUG_VISIBILITY_PROTECTED:
5810       return CXXFLAGS_VISIBILITY_PROTECTED;
5811     }
5812   /*NOTREACHED*/
5813 }
5814 
5815 /* Start defining a struct type.  We build it in the strdef field on
5816    the stack, to avoid confusing type definitions required by the
5817    fields with the struct type itself.  */
5818 
5819 static bfd_boolean
5820 ieee_start_struct_type (void *p, const char *tag, unsigned int id,
5821 			bfd_boolean structp, unsigned int size)
5822 {
5823   struct ieee_handle *info = (struct ieee_handle *) p;
5824   bfd_boolean localp, ignorep;
5825   bfd_boolean copy;
5826   char ab[20];
5827   const char *look;
5828   struct ieee_name_type_hash_entry *h;
5829   struct ieee_name_type *nt, *ntlook;
5830   struct ieee_buflist strdef;
5831 
5832   localp = FALSE;
5833   ignorep = FALSE;
5834 
5835   /* We need to create a tag for internal use even if we don't want
5836      one for external use.  This will let us refer to an anonymous
5837      struct.  */
5838   if (tag != NULL)
5839     {
5840       look = tag;
5841       copy = FALSE;
5842     }
5843   else
5844     {
5845       sprintf (ab, "__anon%u", id);
5846       look = ab;
5847       copy = TRUE;
5848     }
5849 
5850   /* If we already have references to the tag, we must use the
5851      existing type index.  */
5852   h = ieee_name_type_hash_lookup (&info->tags, look, TRUE, copy);
5853   if (h == NULL)
5854     return FALSE;
5855 
5856   nt = NULL;
5857   for (ntlook = h->types; ntlook != NULL; ntlook = ntlook->next)
5858     {
5859       if (ntlook->id == id)
5860 	nt = ntlook;
5861       else if (! ntlook->type.localp)
5862 	{
5863 	  /* We are creating a duplicate definition of a globally
5864 	     defined tag.  Force it to be local to avoid
5865 	     confusion.  */
5866 	  localp = TRUE;
5867 	}
5868     }
5869 
5870   if (nt != NULL)
5871     {
5872       assert (localp == nt->type.localp);
5873       if (nt->kind == DEBUG_KIND_ILLEGAL && ! localp)
5874 	{
5875 	  /* We've already seen a global definition of the type.
5876              Ignore this new definition.  */
5877 	  ignorep = TRUE;
5878 	}
5879     }
5880   else
5881     {
5882       nt = (struct ieee_name_type *) xmalloc (sizeof *nt);
5883       memset (nt, 0, sizeof *nt);
5884       nt->id = id;
5885       nt->type.name = h->root.string;
5886       nt->next = h->types;
5887       h->types = nt;
5888       nt->type.indx = info->type_indx;
5889       ++info->type_indx;
5890     }
5891 
5892   nt->kind = DEBUG_KIND_ILLEGAL;
5893 
5894   if (! ieee_init_buffer (info, &strdef)
5895       || ! ieee_define_named_type (info, tag, nt->type.indx, size, TRUE,
5896 				   localp, &strdef)
5897       || ! ieee_write_number (info, structp ? 'S' : 'U')
5898       || ! ieee_write_number (info, size))
5899     return FALSE;
5900 
5901   if (! ignorep)
5902     {
5903       const char *hold;
5904 
5905       /* We never want nt->type.name to be NULL.  We want the rest of
5906 	 the type to be the object set up on the type stack; it will
5907 	 have a NULL name if tag is NULL.  */
5908       hold = nt->type.name;
5909       nt->type = info->type_stack->type;
5910       nt->type.name = hold;
5911     }
5912 
5913   info->type_stack->type.name = tag;
5914   info->type_stack->type.strdef = strdef;
5915   info->type_stack->type.ignorep = ignorep;
5916 
5917   return TRUE;
5918 }
5919 
5920 /* Add a field to a struct.  */
5921 
5922 static bfd_boolean
5923 ieee_struct_field (void *p, const char *name, bfd_vma bitpos, bfd_vma bitsize,
5924 		   enum debug_visibility visibility)
5925 {
5926   struct ieee_handle *info = (struct ieee_handle *) p;
5927   unsigned int size;
5928   bfd_boolean unsignedp;
5929   bfd_boolean referencep;
5930   bfd_boolean localp;
5931   unsigned int indx;
5932   bfd_vma offset;
5933 
5934   assert (info->type_stack != NULL
5935 	  && info->type_stack->next != NULL
5936 	  && ! ieee_buffer_emptyp (&info->type_stack->next->type.strdef));
5937 
5938   /* If we are ignoring this struct definition, just pop and ignore
5939      the type.  */
5940   if (info->type_stack->next->type.ignorep)
5941     {
5942       ieee_pop_unused_type (info);
5943       return TRUE;
5944     }
5945 
5946   size = info->type_stack->type.size;
5947   unsignedp = info->type_stack->type.unsignedp;
5948   referencep = info->type_stack->type.referencep;
5949   localp = info->type_stack->type.localp;
5950   indx = ieee_pop_type (info);
5951 
5952   if (localp)
5953     info->type_stack->type.localp = TRUE;
5954 
5955   if (info->type_stack->type.classdef != NULL)
5956     {
5957       unsigned int flags;
5958       unsigned int nindx;
5959 
5960       /* This is a class.  We must add a description of this field to
5961          the class records we are building.  */
5962 
5963       flags = ieee_vis_to_flags (visibility);
5964       nindx = info->type_stack->type.classdef->indx;
5965       if (! ieee_change_buffer (info,
5966 				&info->type_stack->type.classdef->pmiscbuf)
5967 	  || ! ieee_write_asn (info, nindx, 'd')
5968 	  || ! ieee_write_asn (info, nindx, flags)
5969 	  || ! ieee_write_atn65 (info, nindx, name)
5970 	  || ! ieee_write_atn65 (info, nindx, name))
5971 	return FALSE;
5972       info->type_stack->type.classdef->pmisccount += 4;
5973 
5974       if (referencep)
5975 	{
5976 	  unsigned int nindx;
5977 
5978 	  /* We need to output a record recording that this field is
5979              really of reference type.  We put this on the refs field
5980              of classdef, so that it can be appended to the C++
5981              records after the class is defined.  */
5982 
5983 	  nindx = info->name_indx;
5984 	  ++info->name_indx;
5985 
5986 	  if (! ieee_change_buffer (info,
5987 				    &info->type_stack->type.classdef->refs)
5988 	      || ! ieee_write_byte (info, (int) ieee_nn_record)
5989 	      || ! ieee_write_number (info, nindx)
5990 	      || ! ieee_write_id (info, "")
5991 	      || ! ieee_write_2bytes (info, (int) ieee_atn_record_enum)
5992 	      || ! ieee_write_number (info, nindx)
5993 	      || ! ieee_write_number (info, 0)
5994 	      || ! ieee_write_number (info, 62)
5995 	      || ! ieee_write_number (info, 80)
5996 	      || ! ieee_write_number (info, 4)
5997 	      || ! ieee_write_asn (info, nindx, 'R')
5998 	      || ! ieee_write_asn (info, nindx, 3)
5999 	      || ! ieee_write_atn65 (info, nindx, info->type_stack->type.name)
6000 	      || ! ieee_write_atn65 (info, nindx, name))
6001 	    return FALSE;
6002 	}
6003     }
6004 
6005   /* If the bitsize doesn't match the expected size, we need to output
6006      a bitfield type.  */
6007   if (size == 0 || bitsize == 0 || bitsize == size * 8)
6008     offset = bitpos / 8;
6009   else
6010     {
6011       if (! ieee_define_type (info, 0, unsignedp,
6012 			      info->type_stack->type.localp)
6013 	  || ! ieee_write_number (info, 'g')
6014 	  || ! ieee_write_number (info, unsignedp ? 0 : 1)
6015 	  || ! ieee_write_number (info, bitsize)
6016 	  || ! ieee_write_number (info, indx))
6017 	return FALSE;
6018       indx = ieee_pop_type (info);
6019       offset = bitpos;
6020     }
6021 
6022   /* Switch to the struct we are building in order to output this
6023      field definition.  */
6024   return (ieee_change_buffer (info, &info->type_stack->type.strdef)
6025 	  && ieee_write_id (info, name)
6026 	  && ieee_write_number (info, indx)
6027 	  && ieee_write_number (info, offset));
6028 }
6029 
6030 /* Finish up a struct type.  */
6031 
6032 static bfd_boolean
6033 ieee_end_struct_type (void *p)
6034 {
6035   struct ieee_handle *info = (struct ieee_handle *) p;
6036   struct ieee_buflist *pb;
6037 
6038   assert (info->type_stack != NULL
6039 	  && ! ieee_buffer_emptyp (&info->type_stack->type.strdef));
6040 
6041   /* If we were ignoring this struct definition because it was a
6042      duplicate definition, just through away whatever bytes we have
6043      accumulated.  Leave the type on the stack.  */
6044   if (info->type_stack->type.ignorep)
6045     return TRUE;
6046 
6047   /* If this is not a duplicate definition of this tag, then localp
6048      will be FALSE, and we can put it in the global type block.
6049      FIXME: We should avoid outputting duplicate definitions which are
6050      the same.  */
6051   if (! info->type_stack->type.localp)
6052     {
6053       /* Make sure we have started the global type block.  */
6054       if (ieee_buffer_emptyp (&info->global_types))
6055 	{
6056 	  if (! ieee_change_buffer (info, &info->global_types)
6057 	      || ! ieee_write_byte (info, (int) ieee_bb_record_enum)
6058 	      || ! ieee_write_byte (info, 2)
6059 	      || ! ieee_write_number (info, 0)
6060 	      || ! ieee_write_id (info, ""))
6061 	    return FALSE;
6062 	}
6063       pb = &info->global_types;
6064     }
6065   else
6066     {
6067       /* Make sure we have started the types block.  */
6068       if (ieee_buffer_emptyp (&info->types))
6069 	{
6070 	  if (! ieee_change_buffer (info, &info->types)
6071 	      || ! ieee_write_byte (info, (int) ieee_bb_record_enum)
6072 	      || ! ieee_write_byte (info, 1)
6073 	      || ! ieee_write_number (info, 0)
6074 	      || ! ieee_write_id (info, info->modname))
6075 	    return FALSE;
6076 	}
6077       pb = &info->types;
6078     }
6079 
6080   /* Append the struct definition to the types.  */
6081   if (! ieee_append_buffer (info, pb, &info->type_stack->type.strdef)
6082       || ! ieee_init_buffer (info, &info->type_stack->type.strdef))
6083     return FALSE;
6084 
6085   /* Leave the struct on the type stack.  */
6086 
6087   return TRUE;
6088 }
6089 
6090 /* Start a class type.  */
6091 
6092 static bfd_boolean
6093 ieee_start_class_type (void *p, const char *tag, unsigned int id,
6094 		       bfd_boolean structp, unsigned int size,
6095 		       bfd_boolean vptr, bfd_boolean ownvptr)
6096 {
6097   struct ieee_handle *info = (struct ieee_handle *) p;
6098   const char *vclass;
6099   struct ieee_buflist pmiscbuf;
6100   unsigned int indx;
6101   struct ieee_type_class *classdef;
6102 
6103   /* A C++ class is output as a C++ struct along with a set of pmisc
6104      records describing the class.  */
6105 
6106   /* We need to have a name so that we can associate the struct and
6107      the class.  */
6108   if (tag == NULL)
6109     {
6110       char *t;
6111 
6112       t = (char *) xmalloc (20);
6113       sprintf (t, "__anon%u", id);
6114       tag = t;
6115     }
6116 
6117   /* We can't write out the virtual table information until we have
6118      finished the class, because we don't know the virtual table size.
6119      We get the size from the largest voffset we see.  */
6120   vclass = NULL;
6121   if (vptr && ! ownvptr)
6122     {
6123       vclass = info->type_stack->type.name;
6124       assert (vclass != NULL);
6125       /* We don't call ieee_pop_unused_type, since the class should
6126          get defined.  */
6127       (void) ieee_pop_type (info);
6128     }
6129 
6130   if (! ieee_start_struct_type (p, tag, id, structp, size))
6131     return FALSE;
6132 
6133   indx = info->name_indx;
6134   ++info->name_indx;
6135 
6136   /* We write out pmisc records into the classdef field.  We will
6137      write out the pmisc start after we know the number of records we
6138      need.  */
6139   if (! ieee_init_buffer (info, &pmiscbuf)
6140       || ! ieee_change_buffer (info, &pmiscbuf)
6141       || ! ieee_write_asn (info, indx, 'T')
6142       || ! ieee_write_asn (info, indx, structp ? 'o' : 'u')
6143       || ! ieee_write_atn65 (info, indx, tag))
6144     return FALSE;
6145 
6146   classdef = (struct ieee_type_class *) xmalloc (sizeof *classdef);
6147   memset (classdef, 0, sizeof *classdef);
6148 
6149   classdef->indx = indx;
6150   classdef->pmiscbuf = pmiscbuf;
6151   classdef->pmisccount = 3;
6152   classdef->vclass = vclass;
6153   classdef->ownvptr = ownvptr;
6154 
6155   info->type_stack->type.classdef = classdef;
6156 
6157   return TRUE;
6158 }
6159 
6160 /* Add a static member to a class.  */
6161 
6162 static bfd_boolean
6163 ieee_class_static_member (void *p, const char *name, const char *physname,
6164 			  enum debug_visibility visibility)
6165 {
6166   struct ieee_handle *info = (struct ieee_handle *) p;
6167   unsigned int flags;
6168   unsigned int nindx;
6169 
6170   /* We don't care about the type.  Hopefully there will be a call to
6171      ieee_variable declaring the physical name and the type, since
6172      that is where an IEEE consumer must get the type.  */
6173   ieee_pop_unused_type (info);
6174 
6175   assert (info->type_stack != NULL
6176 	  && info->type_stack->type.classdef != NULL);
6177 
6178   flags = ieee_vis_to_flags (visibility);
6179   flags |= CXXFLAGS_STATIC;
6180 
6181   nindx = info->type_stack->type.classdef->indx;
6182 
6183   if (! ieee_change_buffer (info, &info->type_stack->type.classdef->pmiscbuf)
6184       || ! ieee_write_asn (info, nindx, 'd')
6185       || ! ieee_write_asn (info, nindx, flags)
6186       || ! ieee_write_atn65 (info, nindx, name)
6187       || ! ieee_write_atn65 (info, nindx, physname))
6188     return FALSE;
6189   info->type_stack->type.classdef->pmisccount += 4;
6190 
6191   return TRUE;
6192 }
6193 
6194 /* Add a base class to a class.  */
6195 
6196 static bfd_boolean
6197 ieee_class_baseclass (void *p, bfd_vma bitpos, bfd_boolean virtual,
6198 		      enum debug_visibility visibility)
6199 {
6200   struct ieee_handle *info = (struct ieee_handle *) p;
6201   const char *bname;
6202   bfd_boolean localp;
6203   unsigned int bindx;
6204   char *fname;
6205   unsigned int flags;
6206   unsigned int nindx;
6207 
6208   assert (info->type_stack != NULL
6209 	  && info->type_stack->type.name != NULL
6210 	  && info->type_stack->next != NULL
6211 	  && info->type_stack->next->type.classdef != NULL
6212 	  && ! ieee_buffer_emptyp (&info->type_stack->next->type.strdef));
6213 
6214   bname = info->type_stack->type.name;
6215   localp = info->type_stack->type.localp;
6216   bindx = ieee_pop_type (info);
6217 
6218   /* We are currently defining both a struct and a class.  We must
6219      write out a field definition in the struct which holds the base
6220      class.  The stabs debugging reader will create a field named
6221      _vb$CLASS for a virtual base class, so we just use that.  FIXME:
6222      we should not depend upon a detail of stabs debugging.  */
6223   if (virtual)
6224     {
6225       fname = (char *) xmalloc (strlen (bname) + sizeof "_vb$");
6226       sprintf (fname, "_vb$%s", bname);
6227       flags = BASEFLAGS_VIRTUAL;
6228     }
6229   else
6230     {
6231       if (localp)
6232 	info->type_stack->type.localp = TRUE;
6233 
6234       fname = (char *) xmalloc (strlen (bname) + sizeof "_b$");
6235       sprintf (fname, "_b$%s", bname);
6236 
6237       if (! ieee_change_buffer (info, &info->type_stack->type.strdef)
6238 	  || ! ieee_write_id (info, fname)
6239 	  || ! ieee_write_number (info, bindx)
6240 	  || ! ieee_write_number (info, bitpos / 8))
6241 	return FALSE;
6242       flags = 0;
6243     }
6244 
6245   if (visibility == DEBUG_VISIBILITY_PRIVATE)
6246     flags |= BASEFLAGS_PRIVATE;
6247 
6248   nindx = info->type_stack->type.classdef->indx;
6249 
6250   if (! ieee_change_buffer (info, &info->type_stack->type.classdef->pmiscbuf)
6251       || ! ieee_write_asn (info, nindx, 'b')
6252       || ! ieee_write_asn (info, nindx, flags)
6253       || ! ieee_write_atn65 (info, nindx, bname)
6254       || ! ieee_write_asn (info, nindx, 0)
6255       || ! ieee_write_atn65 (info, nindx, fname))
6256     return FALSE;
6257   info->type_stack->type.classdef->pmisccount += 5;
6258 
6259   free (fname);
6260 
6261   return TRUE;
6262 }
6263 
6264 /* Start building a method for a class.  */
6265 
6266 static bfd_boolean
6267 ieee_class_start_method (void *p, const char *name)
6268 {
6269   struct ieee_handle *info = (struct ieee_handle *) p;
6270 
6271   assert (info->type_stack != NULL
6272 	  && info->type_stack->type.classdef != NULL
6273 	  && info->type_stack->type.classdef->method == NULL);
6274 
6275   info->type_stack->type.classdef->method = name;
6276 
6277   return TRUE;
6278 }
6279 
6280 /* Define a new method variant, either static or not.  */
6281 
6282 static bfd_boolean
6283 ieee_class_method_var (struct ieee_handle *info, const char *physname,
6284 		       enum debug_visibility visibility,
6285 		       bfd_boolean staticp, bfd_boolean constp,
6286 		       bfd_boolean volatilep, bfd_vma voffset,
6287 		       bfd_boolean context)
6288 {
6289   unsigned int flags;
6290   unsigned int nindx;
6291   bfd_boolean virtual;
6292 
6293   /* We don't need the type of the method.  An IEEE consumer which
6294      wants the type must track down the function by the physical name
6295      and get the type from that.  */
6296   ieee_pop_unused_type (info);
6297 
6298   /* We don't use the context.  FIXME: We probably ought to use it to
6299      adjust the voffset somehow, but I don't really know how.  */
6300   if (context)
6301     ieee_pop_unused_type (info);
6302 
6303   assert (info->type_stack != NULL
6304 	  && info->type_stack->type.classdef != NULL
6305 	  && info->type_stack->type.classdef->method != NULL);
6306 
6307   flags = ieee_vis_to_flags (visibility);
6308 
6309   /* FIXME: We never set CXXFLAGS_OVERRIDE, CXXFLAGS_OPERATOR,
6310      CXXFLAGS_CTORDTOR, CXXFLAGS_CTOR, or CXXFLAGS_INLINE.  */
6311 
6312   if (staticp)
6313     flags |= CXXFLAGS_STATIC;
6314   if (constp)
6315     flags |= CXXFLAGS_CONST;
6316   if (volatilep)
6317     flags |= CXXFLAGS_VOLATILE;
6318 
6319   nindx = info->type_stack->type.classdef->indx;
6320 
6321   virtual = context || voffset > 0;
6322 
6323   if (! ieee_change_buffer (info,
6324 			    &info->type_stack->type.classdef->pmiscbuf)
6325       || ! ieee_write_asn (info, nindx, virtual ? 'v' : 'm')
6326       || ! ieee_write_asn (info, nindx, flags)
6327       || ! ieee_write_atn65 (info, nindx,
6328 			     info->type_stack->type.classdef->method)
6329       || ! ieee_write_atn65 (info, nindx, physname))
6330     return FALSE;
6331 
6332   if (virtual)
6333     {
6334       if (voffset > info->type_stack->type.classdef->voffset)
6335 	info->type_stack->type.classdef->voffset = voffset;
6336       if (! ieee_write_asn (info, nindx, voffset))
6337 	return FALSE;
6338       ++info->type_stack->type.classdef->pmisccount;
6339     }
6340 
6341   if (! ieee_write_asn (info, nindx, 0))
6342     return FALSE;
6343 
6344   info->type_stack->type.classdef->pmisccount += 5;
6345 
6346   return TRUE;
6347 }
6348 
6349 /* Define a new method variant.  */
6350 
6351 static bfd_boolean
6352 ieee_class_method_variant (void *p, const char *physname,
6353 			   enum debug_visibility visibility,
6354 			   bfd_boolean constp, bfd_boolean volatilep,
6355 			   bfd_vma voffset, bfd_boolean context)
6356 {
6357   struct ieee_handle *info = (struct ieee_handle *) p;
6358 
6359   return ieee_class_method_var (info, physname, visibility, FALSE, constp,
6360 				volatilep, voffset, context);
6361 }
6362 
6363 /* Define a new static method variant.  */
6364 
6365 static bfd_boolean
6366 ieee_class_static_method_variant (void *p, const char *physname,
6367 				  enum debug_visibility visibility,
6368 				  bfd_boolean constp, bfd_boolean volatilep)
6369 {
6370   struct ieee_handle *info = (struct ieee_handle *) p;
6371 
6372   return ieee_class_method_var (info, physname, visibility, TRUE, constp,
6373 				volatilep, 0, FALSE);
6374 }
6375 
6376 /* Finish up a method.  */
6377 
6378 static bfd_boolean
6379 ieee_class_end_method (void *p)
6380 {
6381   struct ieee_handle *info = (struct ieee_handle *) p;
6382 
6383   assert (info->type_stack != NULL
6384 	  && info->type_stack->type.classdef != NULL
6385 	  && info->type_stack->type.classdef->method != NULL);
6386 
6387   info->type_stack->type.classdef->method = NULL;
6388 
6389   return TRUE;
6390 }
6391 
6392 /* Finish up a class.  */
6393 
6394 static bfd_boolean
6395 ieee_end_class_type (void *p)
6396 {
6397   struct ieee_handle *info = (struct ieee_handle *) p;
6398   unsigned int nindx;
6399 
6400   assert (info->type_stack != NULL
6401 	  && info->type_stack->type.classdef != NULL);
6402 
6403   /* If we were ignoring this class definition because it was a
6404      duplicate definition, just through away whatever bytes we have
6405      accumulated.  Leave the type on the stack.  */
6406   if (info->type_stack->type.ignorep)
6407     return TRUE;
6408 
6409   nindx = info->type_stack->type.classdef->indx;
6410 
6411   /* If we have a virtual table, we can write out the information now.  */
6412   if (info->type_stack->type.classdef->vclass != NULL
6413       || info->type_stack->type.classdef->ownvptr)
6414     {
6415       if (! ieee_change_buffer (info,
6416 				&info->type_stack->type.classdef->pmiscbuf)
6417 	  || ! ieee_write_asn (info, nindx, 'z')
6418 	  || ! ieee_write_atn65 (info, nindx, "")
6419 	  || ! ieee_write_asn (info, nindx,
6420 			       info->type_stack->type.classdef->voffset))
6421 	return FALSE;
6422       if (info->type_stack->type.classdef->ownvptr)
6423 	{
6424 	  if (! ieee_write_atn65 (info, nindx, ""))
6425 	    return FALSE;
6426 	}
6427       else
6428 	{
6429 	  if (! ieee_write_atn65 (info, nindx,
6430 				  info->type_stack->type.classdef->vclass))
6431 	    return FALSE;
6432 	}
6433       if (! ieee_write_asn (info, nindx, 0))
6434 	return FALSE;
6435       info->type_stack->type.classdef->pmisccount += 5;
6436     }
6437 
6438   /* Now that we know the number of pmisc records, we can write out
6439      the atn62 which starts the pmisc records, and append them to the
6440      C++ buffers.  */
6441 
6442   if (! ieee_change_buffer (info, &info->cxx)
6443       || ! ieee_write_byte (info, (int) ieee_nn_record)
6444       || ! ieee_write_number (info, nindx)
6445       || ! ieee_write_id (info, "")
6446       || ! ieee_write_2bytes (info, (int) ieee_atn_record_enum)
6447       || ! ieee_write_number (info, nindx)
6448       || ! ieee_write_number (info, 0)
6449       || ! ieee_write_number (info, 62)
6450       || ! ieee_write_number (info, 80)
6451       || ! ieee_write_number (info,
6452 			      info->type_stack->type.classdef->pmisccount))
6453     return FALSE;
6454 
6455   if (! ieee_append_buffer (info, &info->cxx,
6456 			    &info->type_stack->type.classdef->pmiscbuf))
6457     return FALSE;
6458   if (! ieee_buffer_emptyp (&info->type_stack->type.classdef->refs))
6459     {
6460       if (! ieee_append_buffer (info, &info->cxx,
6461 				&info->type_stack->type.classdef->refs))
6462 	return FALSE;
6463     }
6464 
6465   return ieee_end_struct_type (p);
6466 }
6467 
6468 /* Push a previously seen typedef onto the type stack.  */
6469 
6470 static bfd_boolean
6471 ieee_typedef_type (void *p, const char *name)
6472 {
6473   struct ieee_handle *info = (struct ieee_handle *) p;
6474   struct ieee_name_type_hash_entry *h;
6475   struct ieee_name_type *nt;
6476 
6477   h = ieee_name_type_hash_lookup (&info->typedefs, name, FALSE, FALSE);
6478 
6479   /* h should never be NULL, since that would imply that the generic
6480      debugging code has asked for a typedef which it has not yet
6481      defined.  */
6482   assert (h != NULL);
6483 
6484   /* We always use the most recently defined type for this name, which
6485      will be the first one on the list.  */
6486 
6487   nt = h->types;
6488   if (! ieee_push_type (info, nt->type.indx, nt->type.size,
6489 			nt->type.unsignedp, nt->type.localp))
6490     return FALSE;
6491 
6492   /* Copy over any other type information we may have.  */
6493   info->type_stack->type = nt->type;
6494 
6495   return TRUE;
6496 }
6497 
6498 /* Push a tagged type onto the type stack.  */
6499 
6500 static bfd_boolean
6501 ieee_tag_type (void *p, const char *name, unsigned int id,
6502 	       enum debug_type_kind kind)
6503 {
6504   struct ieee_handle *info = (struct ieee_handle *) p;
6505   bfd_boolean localp;
6506   bfd_boolean copy;
6507   char ab[20];
6508   struct ieee_name_type_hash_entry *h;
6509   struct ieee_name_type *nt;
6510 
6511   if (kind == DEBUG_KIND_ENUM)
6512     {
6513       struct ieee_defined_enum *e;
6514 
6515       if (name == NULL)
6516 	abort ();
6517       for (e = info->enums; e != NULL; e = e->next)
6518 	if (e->tag != NULL && strcmp (e->tag, name) == 0)
6519 	  return ieee_push_type (info, e->indx, 0, TRUE, FALSE);
6520 
6521       e = (struct ieee_defined_enum *) xmalloc (sizeof *e);
6522       memset (e, 0, sizeof *e);
6523 
6524       e->indx = info->type_indx;
6525       ++info->type_indx;
6526       e->tag = name;
6527       e->defined = FALSE;
6528 
6529       e->next = info->enums;
6530       info->enums = e;
6531 
6532       return ieee_push_type (info, e->indx, 0, TRUE, FALSE);
6533     }
6534 
6535   localp = FALSE;
6536 
6537   copy = FALSE;
6538   if (name == NULL)
6539     {
6540       sprintf (ab, "__anon%u", id);
6541       name = ab;
6542       copy = TRUE;
6543     }
6544 
6545   h = ieee_name_type_hash_lookup (&info->tags, name, TRUE, copy);
6546   if (h == NULL)
6547     return FALSE;
6548 
6549   for (nt = h->types; nt != NULL; nt = nt->next)
6550     {
6551       if (nt->id == id)
6552 	{
6553 	  if (! ieee_push_type (info, nt->type.indx, nt->type.size,
6554 				nt->type.unsignedp, nt->type.localp))
6555 	    return FALSE;
6556 	  /* Copy over any other type information we may have.  */
6557 	  info->type_stack->type = nt->type;
6558 	  return TRUE;
6559 	}
6560 
6561       if (! nt->type.localp)
6562 	{
6563 	  /* This is a duplicate of a global type, so it must be
6564              local.  */
6565 	  localp = TRUE;
6566 	}
6567     }
6568 
6569   nt = (struct ieee_name_type *) xmalloc (sizeof *nt);
6570   memset (nt, 0, sizeof *nt);
6571 
6572   nt->id = id;
6573   nt->type.name = h->root.string;
6574   nt->type.indx = info->type_indx;
6575   nt->type.localp = localp;
6576   ++info->type_indx;
6577   nt->kind = kind;
6578 
6579   nt->next = h->types;
6580   h->types = nt;
6581 
6582   if (! ieee_push_type (info, nt->type.indx, 0, FALSE, localp))
6583     return FALSE;
6584 
6585   info->type_stack->type.name = h->root.string;
6586 
6587   return TRUE;
6588 }
6589 
6590 /* Output a typedef.  */
6591 
6592 static bfd_boolean
6593 ieee_typdef (void *p, const char *name)
6594 {
6595   struct ieee_handle *info = (struct ieee_handle *) p;
6596   struct ieee_write_type type;
6597   unsigned int indx;
6598   bfd_boolean found;
6599   bfd_boolean localp;
6600   struct ieee_name_type_hash_entry *h;
6601   struct ieee_name_type *nt;
6602 
6603   type = info->type_stack->type;
6604   indx = type.indx;
6605 
6606   /* If this is a simple builtin type using a builtin name, we don't
6607      want to output the typedef itself.  We also want to change the
6608      type index to correspond to the name being used.  We recognize
6609      names used in stabs debugging output even if they don't exactly
6610      correspond to the names used for the IEEE builtin types.  */
6611   found = FALSE;
6612   if (indx <= (unsigned int) builtin_bcd_float)
6613     {
6614       switch ((enum builtin_types) indx)
6615 	{
6616 	default:
6617 	  break;
6618 
6619 	case builtin_void:
6620 	  if (strcmp (name, "void") == 0)
6621 	    found = TRUE;
6622 	  break;
6623 
6624 	case builtin_signed_char:
6625 	case builtin_char:
6626 	  if (strcmp (name, "signed char") == 0)
6627 	    {
6628 	      indx = (unsigned int) builtin_signed_char;
6629 	      found = TRUE;
6630 	    }
6631 	  else if (strcmp (name, "char") == 0)
6632 	    {
6633 	      indx = (unsigned int) builtin_char;
6634 	      found = TRUE;
6635 	    }
6636 	  break;
6637 
6638 	case builtin_unsigned_char:
6639 	  if (strcmp (name, "unsigned char") == 0)
6640 	    found = TRUE;
6641 	  break;
6642 
6643 	case builtin_signed_short_int:
6644 	case builtin_short:
6645 	case builtin_short_int:
6646 	case builtin_signed_short:
6647 	  if (strcmp (name, "signed short int") == 0)
6648 	    {
6649 	      indx = (unsigned int) builtin_signed_short_int;
6650 	      found = TRUE;
6651 	    }
6652 	  else if (strcmp (name, "short") == 0)
6653 	    {
6654 	      indx = (unsigned int) builtin_short;
6655 	      found = TRUE;
6656 	    }
6657 	  else if (strcmp (name, "short int") == 0)
6658 	    {
6659 	      indx = (unsigned int) builtin_short_int;
6660 	      found = TRUE;
6661 	    }
6662 	  else if (strcmp (name, "signed short") == 0)
6663 	    {
6664 	      indx = (unsigned int) builtin_signed_short;
6665 	      found = TRUE;
6666 	    }
6667 	  break;
6668 
6669 	case builtin_unsigned_short_int:
6670 	case builtin_unsigned_short:
6671 	  if (strcmp (name, "unsigned short int") == 0
6672 	      || strcmp (name, "short unsigned int") == 0)
6673 	    {
6674 	      indx = builtin_unsigned_short_int;
6675 	      found = TRUE;
6676 	    }
6677 	  else if (strcmp (name, "unsigned short") == 0)
6678 	    {
6679 	      indx = builtin_unsigned_short;
6680 	      found = TRUE;
6681 	    }
6682 	  break;
6683 
6684 	case builtin_signed_long:
6685 	case builtin_int: /* FIXME: Size depends upon architecture.  */
6686 	case builtin_long:
6687 	  if (strcmp (name, "signed long") == 0)
6688 	    {
6689 	      indx = builtin_signed_long;
6690 	      found = TRUE;
6691 	    }
6692 	  else if (strcmp (name, "int") == 0)
6693 	    {
6694 	      indx = builtin_int;
6695 	      found = TRUE;
6696 	    }
6697 	  else if (strcmp (name, "long") == 0
6698 		   || strcmp (name, "long int") == 0)
6699 	    {
6700 	      indx = builtin_long;
6701 	      found = TRUE;
6702 	    }
6703 	  break;
6704 
6705 	case builtin_unsigned_long:
6706 	case builtin_unsigned: /* FIXME: Size depends upon architecture.  */
6707 	case builtin_unsigned_int: /* FIXME: Like builtin_unsigned.  */
6708 	  if (strcmp (name, "unsigned long") == 0
6709 	      || strcmp (name, "long unsigned int") == 0)
6710 	    {
6711 	      indx = builtin_unsigned_long;
6712 	      found = TRUE;
6713 	    }
6714 	  else if (strcmp (name, "unsigned") == 0)
6715 	    {
6716 	      indx = builtin_unsigned;
6717 	      found = TRUE;
6718 	    }
6719 	  else if (strcmp (name, "unsigned int") == 0)
6720 	    {
6721 	      indx = builtin_unsigned_int;
6722 	      found = TRUE;
6723 	    }
6724 	  break;
6725 
6726 	case builtin_signed_long_long:
6727 	  if (strcmp (name, "signed long long") == 0
6728 	      || strcmp (name, "long long int") == 0)
6729 	    found = TRUE;
6730 	  break;
6731 
6732 	case builtin_unsigned_long_long:
6733 	  if (strcmp (name, "unsigned long long") == 0
6734 	      || strcmp (name, "long long unsigned int") == 0)
6735 	    found = TRUE;
6736 	  break;
6737 
6738 	case builtin_float:
6739 	  if (strcmp (name, "float") == 0)
6740 	    found = TRUE;
6741 	  break;
6742 
6743 	case builtin_double:
6744 	  if (strcmp (name, "double") == 0)
6745 	    found = TRUE;
6746 	  break;
6747 
6748 	case builtin_long_double:
6749 	  if (strcmp (name, "long double") == 0)
6750 	    found = TRUE;
6751 	  break;
6752 
6753 	case builtin_long_long_double:
6754 	  if (strcmp (name, "long long double") == 0)
6755 	    found = TRUE;
6756 	  break;
6757 	}
6758 
6759       if (found)
6760 	type.indx = indx;
6761     }
6762 
6763   h = ieee_name_type_hash_lookup (&info->typedefs, name, TRUE, FALSE);
6764   if (h == NULL)
6765     return FALSE;
6766 
6767   /* See if we have already defined this type with this name.  */
6768   localp = type.localp;
6769   for (nt = h->types; nt != NULL; nt = nt->next)
6770     {
6771       if (nt->id == indx)
6772 	{
6773 	  /* If this is a global definition, then we don't need to
6774 	     do anything here.  */
6775 	  if (! nt->type.localp)
6776 	    {
6777 	      ieee_pop_unused_type (info);
6778 	      return TRUE;
6779 	    }
6780 	}
6781       else
6782 	{
6783 	  /* This is a duplicate definition, so make this one local.  */
6784 	  localp = TRUE;
6785 	}
6786     }
6787 
6788   /* We need to add a new typedef for this type.  */
6789 
6790   nt = (struct ieee_name_type *) xmalloc (sizeof *nt);
6791   memset (nt, 0, sizeof *nt);
6792   nt->id = indx;
6793   nt->type = type;
6794   nt->type.name = name;
6795   nt->type.localp = localp;
6796   nt->kind = DEBUG_KIND_ILLEGAL;
6797 
6798   nt->next = h->types;
6799   h->types = nt;
6800 
6801   if (found)
6802     {
6803       /* This is one of the builtin typedefs, so we don't need to
6804          actually define it.  */
6805       ieee_pop_unused_type (info);
6806       return TRUE;
6807     }
6808 
6809   indx = ieee_pop_type (info);
6810 
6811   if (! ieee_define_named_type (info, name, (unsigned int) -1, type.size,
6812 				type.unsignedp,	localp,
6813 				(struct ieee_buflist *) NULL)
6814       || ! ieee_write_number (info, 'T')
6815       || ! ieee_write_number (info, indx))
6816     return FALSE;
6817 
6818   /* Remove the type we just added to the type stack.  This should not
6819      be ieee_pop_unused_type, since the type is used, we just don't
6820      need it now.  */
6821   (void) ieee_pop_type (info);
6822 
6823   return TRUE;
6824 }
6825 
6826 /* Output a tag for a type.  We don't have to do anything here.  */
6827 
6828 static bfd_boolean
6829 ieee_tag (void *p, const char *name ATTRIBUTE_UNUSED)
6830 {
6831   struct ieee_handle *info = (struct ieee_handle *) p;
6832 
6833   /* This should not be ieee_pop_unused_type, since we want the type
6834      to be defined.  */
6835   (void) ieee_pop_type (info);
6836   return TRUE;
6837 }
6838 
6839 /* Output an integer constant.  */
6840 
6841 static bfd_boolean
6842 ieee_int_constant (void *p ATTRIBUTE_UNUSED, const char *name ATTRIBUTE_UNUSED,
6843 		   bfd_vma val ATTRIBUTE_UNUSED)
6844 {
6845   /* FIXME.  */
6846   return TRUE;
6847 }
6848 
6849 /* Output a floating point constant.  */
6850 
6851 static bfd_boolean
6852 ieee_float_constant (void *p ATTRIBUTE_UNUSED,
6853 		     const char *name ATTRIBUTE_UNUSED,
6854 		     double val ATTRIBUTE_UNUSED)
6855 {
6856   /* FIXME.  */
6857   return TRUE;
6858 }
6859 
6860 /* Output a typed constant.  */
6861 
6862 static bfd_boolean
6863 ieee_typed_constant (void *p, const char *name ATTRIBUTE_UNUSED,
6864 		     bfd_vma val ATTRIBUTE_UNUSED)
6865 {
6866   struct ieee_handle *info = (struct ieee_handle *) p;
6867 
6868   /* FIXME.  */
6869   ieee_pop_unused_type (info);
6870   return TRUE;
6871 }
6872 
6873 /* Output a variable.  */
6874 
6875 static bfd_boolean
6876 ieee_variable (void *p, const char *name, enum debug_var_kind kind,
6877 	       bfd_vma val)
6878 {
6879   struct ieee_handle *info = (struct ieee_handle *) p;
6880   unsigned int name_indx;
6881   unsigned int size;
6882   bfd_boolean referencep;
6883   unsigned int type_indx;
6884   bfd_boolean asn;
6885   int refflag;
6886 
6887   size = info->type_stack->type.size;
6888   referencep = info->type_stack->type.referencep;
6889   type_indx = ieee_pop_type (info);
6890 
6891   assert (! ieee_buffer_emptyp (&info->vars));
6892   if (! ieee_change_buffer (info, &info->vars))
6893     return FALSE;
6894 
6895   name_indx = info->name_indx;
6896   ++info->name_indx;
6897 
6898   /* Write out an NN and an ATN record for this variable.  */
6899   if (! ieee_write_byte (info, (int) ieee_nn_record)
6900       || ! ieee_write_number (info, name_indx)
6901       || ! ieee_write_id (info, name)
6902       || ! ieee_write_2bytes (info, (int) ieee_atn_record_enum)
6903       || ! ieee_write_number (info, name_indx)
6904       || ! ieee_write_number (info, type_indx))
6905     return FALSE;
6906   switch (kind)
6907     {
6908     default:
6909       abort ();
6910       return FALSE;
6911     case DEBUG_GLOBAL:
6912       if (! ieee_write_number (info, 8)
6913 	  || ! ieee_add_range (info, FALSE, val, val + size))
6914 	return FALSE;
6915       refflag = 0;
6916       asn = TRUE;
6917       break;
6918     case DEBUG_STATIC:
6919       if (! ieee_write_number (info, 3)
6920 	  || ! ieee_add_range (info, FALSE, val, val + size))
6921 	return FALSE;
6922       refflag = 1;
6923       asn = TRUE;
6924       break;
6925     case DEBUG_LOCAL_STATIC:
6926       if (! ieee_write_number (info, 3)
6927 	  || ! ieee_add_range (info, FALSE, val, val + size))
6928 	return FALSE;
6929       refflag = 2;
6930       asn = TRUE;
6931       break;
6932     case DEBUG_LOCAL:
6933       if (! ieee_write_number (info, 1)
6934 	  || ! ieee_write_number (info, val))
6935 	return FALSE;
6936       refflag = 2;
6937       asn = FALSE;
6938       break;
6939     case DEBUG_REGISTER:
6940       if (! ieee_write_number (info, 2)
6941 	  || ! ieee_write_number (info,
6942 				  ieee_genreg_to_regno (info->abfd, val)))
6943 	return FALSE;
6944       refflag = 2;
6945       asn = FALSE;
6946       break;
6947     }
6948 
6949   if (asn)
6950     {
6951       if (! ieee_write_asn (info, name_indx, val))
6952 	return FALSE;
6953     }
6954 
6955   /* If this is really a reference type, then we just output it with
6956      pointer type, and must now output a C++ record indicating that it
6957      is really reference type.  */
6958   if (referencep)
6959     {
6960       unsigned int nindx;
6961 
6962       nindx = info->name_indx;
6963       ++info->name_indx;
6964 
6965       /* If this is a global variable, we want to output the misc
6966          record in the C++ misc record block.  Otherwise, we want to
6967          output it just after the variable definition, which is where
6968          the current buffer is.  */
6969       if (refflag != 2)
6970 	{
6971 	  if (! ieee_change_buffer (info, &info->cxx))
6972 	    return FALSE;
6973 	}
6974 
6975       if (! ieee_write_byte (info, (int) ieee_nn_record)
6976 	  || ! ieee_write_number (info, nindx)
6977 	  || ! ieee_write_id (info, "")
6978 	  || ! ieee_write_2bytes (info, (int) ieee_atn_record_enum)
6979 	  || ! ieee_write_number (info, nindx)
6980 	  || ! ieee_write_number (info, 0)
6981 	  || ! ieee_write_number (info, 62)
6982 	  || ! ieee_write_number (info, 80)
6983 	  || ! ieee_write_number (info, 3)
6984 	  || ! ieee_write_asn (info, nindx, 'R')
6985 	  || ! ieee_write_asn (info, nindx, refflag)
6986 	  || ! ieee_write_atn65 (info, nindx, name))
6987 	return FALSE;
6988     }
6989 
6990   return TRUE;
6991 }
6992 
6993 /* Start outputting information for a function.  */
6994 
6995 static bfd_boolean
6996 ieee_start_function (void *p, const char *name, bfd_boolean global)
6997 {
6998   struct ieee_handle *info = (struct ieee_handle *) p;
6999   bfd_boolean referencep;
7000   unsigned int retindx, typeindx;
7001 
7002   referencep = info->type_stack->type.referencep;
7003   retindx = ieee_pop_type (info);
7004 
7005   /* Besides recording a BB4 or BB6 block, we record the type of the
7006      function in the BB1 typedef block.  We can't write out the full
7007      type until we have seen all the parameters, so we accumulate it
7008      in info->fntype and info->fnargs.  */
7009   if (! ieee_buffer_emptyp (&info->fntype))
7010     {
7011       /* FIXME: This might happen someday if we support nested
7012          functions.  */
7013       abort ();
7014     }
7015 
7016   info->fnname = name;
7017 
7018   /* An attribute of 0x40 means that the push mask is unknown.  */
7019   if (! ieee_define_named_type (info, name, (unsigned int) -1, 0, FALSE, TRUE,
7020 				&info->fntype)
7021       || ! ieee_write_number (info, 'x')
7022       || ! ieee_write_number (info, 0x40)
7023       || ! ieee_write_number (info, 0)
7024       || ! ieee_write_number (info, 0)
7025       || ! ieee_write_number (info, retindx))
7026     return FALSE;
7027 
7028   typeindx = ieee_pop_type (info);
7029 
7030   if (! ieee_init_buffer (info, &info->fnargs))
7031     return FALSE;
7032   info->fnargcount = 0;
7033 
7034   /* If the function return value is actually a reference type, we
7035      must add a record indicating that.  */
7036   if (referencep)
7037     {
7038       unsigned int nindx;
7039 
7040       nindx = info->name_indx;
7041       ++info->name_indx;
7042       if (! ieee_change_buffer (info, &info->cxx)
7043 	  || ! ieee_write_byte (info, (int) ieee_nn_record)
7044 	  || ! ieee_write_number (info, nindx)
7045 	  || ! ieee_write_id (info, "")
7046 	  || ! ieee_write_2bytes (info, (int) ieee_atn_record_enum)
7047 	  || ! ieee_write_number (info, nindx)
7048 	  || ! ieee_write_number (info, 0)
7049 	  || ! ieee_write_number (info, 62)
7050 	  || ! ieee_write_number (info, 80)
7051 	  || ! ieee_write_number (info, 3)
7052 	  || ! ieee_write_asn (info, nindx, 'R')
7053 	  || ! ieee_write_asn (info, nindx, global ? 0 : 1)
7054 	  || ! ieee_write_atn65 (info, nindx, name))
7055 	return FALSE;
7056     }
7057 
7058   assert (! ieee_buffer_emptyp (&info->vars));
7059   if (! ieee_change_buffer (info, &info->vars))
7060     return FALSE;
7061 
7062   /* The address is written out as the first block.  */
7063 
7064   ++info->block_depth;
7065 
7066   return (ieee_write_byte (info, (int) ieee_bb_record_enum)
7067 	  && ieee_write_byte (info, global ? 4 : 6)
7068 	  && ieee_write_number (info, 0)
7069 	  && ieee_write_id (info, name)
7070 	  && ieee_write_number (info, 0)
7071 	  && ieee_write_number (info, typeindx));
7072 }
7073 
7074 /* Add a function parameter.  This will normally be called before the
7075    first block, so we postpone them until we see the block.  */
7076 
7077 static bfd_boolean
7078 ieee_function_parameter (void *p, const char *name, enum debug_parm_kind kind,
7079 			 bfd_vma val)
7080 {
7081   struct ieee_handle *info = (struct ieee_handle *) p;
7082   struct ieee_pending_parm *m, **pm;
7083 
7084   assert (info->block_depth == 1);
7085 
7086   m = (struct ieee_pending_parm *) xmalloc (sizeof *m);
7087   memset (m, 0, sizeof *m);
7088 
7089   m->next = NULL;
7090   m->name = name;
7091   m->referencep = info->type_stack->type.referencep;
7092   m->type = ieee_pop_type (info);
7093   m->kind = kind;
7094   m->val = val;
7095 
7096   for (pm = &info->pending_parms; *pm != NULL; pm = &(*pm)->next)
7097     ;
7098   *pm = m;
7099 
7100   /* Add the type to the fnargs list.  */
7101   if (! ieee_change_buffer (info, &info->fnargs)
7102       || ! ieee_write_number (info, m->type))
7103     return FALSE;
7104   ++info->fnargcount;
7105 
7106   return TRUE;
7107 }
7108 
7109 /* Output pending function parameters.  */
7110 
7111 static bfd_boolean
7112 ieee_output_pending_parms (struct ieee_handle *info)
7113 {
7114   struct ieee_pending_parm *m;
7115   unsigned int refcount;
7116 
7117   refcount = 0;
7118   for (m = info->pending_parms; m != NULL; m = m->next)
7119     {
7120       enum debug_var_kind vkind;
7121 
7122       switch (m->kind)
7123 	{
7124 	default:
7125 	  abort ();
7126 	  return FALSE;
7127 	case DEBUG_PARM_STACK:
7128 	case DEBUG_PARM_REFERENCE:
7129 	  vkind = DEBUG_LOCAL;
7130 	  break;
7131 	case DEBUG_PARM_REG:
7132 	case DEBUG_PARM_REF_REG:
7133 	  vkind = DEBUG_REGISTER;
7134 	  break;
7135 	}
7136 
7137       if (! ieee_push_type (info, m->type, 0, FALSE, FALSE))
7138 	return FALSE;
7139       info->type_stack->type.referencep = m->referencep;
7140       if (m->referencep)
7141 	++refcount;
7142       if (! ieee_variable ((void *) info, m->name, vkind, m->val))
7143 	return FALSE;
7144     }
7145 
7146   /* If there are any reference parameters, we need to output a
7147      miscellaneous record indicating them.  */
7148   if (refcount > 0)
7149     {
7150       unsigned int nindx, varindx;
7151 
7152       /* FIXME: The MRI compiler outputs the demangled function name
7153          here, but we are outputting the mangled name.  */
7154       nindx = info->name_indx;
7155       ++info->name_indx;
7156       if (! ieee_change_buffer (info, &info->vars)
7157 	  || ! ieee_write_byte (info, (int) ieee_nn_record)
7158 	  || ! ieee_write_number (info, nindx)
7159 	  || ! ieee_write_id (info, "")
7160 	  || ! ieee_write_2bytes (info, (int) ieee_atn_record_enum)
7161 	  || ! ieee_write_number (info, nindx)
7162 	  || ! ieee_write_number (info, 0)
7163 	  || ! ieee_write_number (info, 62)
7164 	  || ! ieee_write_number (info, 80)
7165 	  || ! ieee_write_number (info, refcount + 3)
7166 	  || ! ieee_write_asn (info, nindx, 'B')
7167 	  || ! ieee_write_atn65 (info, nindx, info->fnname)
7168 	  || ! ieee_write_asn (info, nindx, 0))
7169 	return FALSE;
7170       for (m = info->pending_parms, varindx = 1;
7171 	   m != NULL;
7172 	   m = m->next, varindx++)
7173 	{
7174 	  if (m->referencep)
7175 	    {
7176 	      if (! ieee_write_asn (info, nindx, varindx))
7177 		return FALSE;
7178 	    }
7179 	}
7180     }
7181 
7182   m = info->pending_parms;
7183   while (m != NULL)
7184     {
7185       struct ieee_pending_parm *next;
7186 
7187       next = m->next;
7188       free (m);
7189       m = next;
7190     }
7191 
7192   info->pending_parms = NULL;
7193 
7194   return TRUE;
7195 }
7196 
7197 /* Start a block.  If this is the first block, we output the address
7198    to finish the BB4 or BB6, and then output the function parameters.  */
7199 
7200 static bfd_boolean
7201 ieee_start_block (void *p, bfd_vma addr)
7202 {
7203   struct ieee_handle *info = (struct ieee_handle *) p;
7204 
7205   if (! ieee_change_buffer (info, &info->vars))
7206     return FALSE;
7207 
7208   if (info->block_depth == 1)
7209     {
7210       if (! ieee_write_number (info, addr)
7211 	  || ! ieee_output_pending_parms (info))
7212 	return FALSE;
7213     }
7214   else
7215     {
7216       if (! ieee_write_byte (info, (int) ieee_bb_record_enum)
7217 	  || ! ieee_write_byte (info, 6)
7218 	  || ! ieee_write_number (info, 0)
7219 	  || ! ieee_write_id (info, "")
7220 	  || ! ieee_write_number (info, 0)
7221 	  || ! ieee_write_number (info, 0)
7222 	  || ! ieee_write_number (info, addr))
7223 	return FALSE;
7224     }
7225 
7226   if (! ieee_start_range (info, addr))
7227     return FALSE;
7228 
7229   ++info->block_depth;
7230 
7231   return TRUE;
7232 }
7233 
7234 /* End a block.  */
7235 
7236 static bfd_boolean
7237 ieee_end_block (void *p, bfd_vma addr)
7238 {
7239   struct ieee_handle *info = (struct ieee_handle *) p;
7240 
7241   /* The address we are given is the end of the block, but IEEE seems
7242      to want to the address of the last byte in the block, so we
7243      subtract one.  */
7244   if (! ieee_change_buffer (info, &info->vars)
7245       || ! ieee_write_byte (info, (int) ieee_be_record_enum)
7246       || ! ieee_write_number (info, addr - 1))
7247     return FALSE;
7248 
7249   if (! ieee_end_range (info, addr))
7250     return FALSE;
7251 
7252   --info->block_depth;
7253 
7254   if (addr > info->highaddr)
7255     info->highaddr = addr;
7256 
7257   return TRUE;
7258 }
7259 
7260 /* End a function.  */
7261 
7262 static bfd_boolean
7263 ieee_end_function (void *p)
7264 {
7265   struct ieee_handle *info = (struct ieee_handle *) p;
7266 
7267   assert (info->block_depth == 1);
7268 
7269   --info->block_depth;
7270 
7271   /* Now we can finish up fntype, and add it to the typdef section.
7272      At this point, fntype is the 'x' type up to the argument count,
7273      and fnargs is the argument types.  We must add the argument
7274      count, and we must add the level.  FIXME: We don't record varargs
7275      functions correctly.  In fact, stabs debugging does not give us
7276      enough information to do so.  */
7277   if (! ieee_change_buffer (info, &info->fntype)
7278       || ! ieee_write_number (info, info->fnargcount)
7279       || ! ieee_change_buffer (info, &info->fnargs)
7280       || ! ieee_write_number (info, 0))
7281     return FALSE;
7282 
7283   /* Make sure the typdef block has been started.  */
7284   if (ieee_buffer_emptyp (&info->types))
7285     {
7286       if (! ieee_change_buffer (info, &info->types)
7287 	  || ! ieee_write_byte (info, (int) ieee_bb_record_enum)
7288 	  || ! ieee_write_byte (info, 1)
7289 	  || ! ieee_write_number (info, 0)
7290 	  || ! ieee_write_id (info, info->modname))
7291 	return FALSE;
7292     }
7293 
7294   if (! ieee_append_buffer (info, &info->types, &info->fntype)
7295       || ! ieee_append_buffer (info, &info->types, &info->fnargs))
7296     return FALSE;
7297 
7298   info->fnname = NULL;
7299   if (! ieee_init_buffer (info, &info->fntype)
7300       || ! ieee_init_buffer (info, &info->fnargs))
7301     return FALSE;
7302   info->fnargcount = 0;
7303 
7304   return TRUE;
7305 }
7306 
7307 /* Record line number information.  */
7308 
7309 static bfd_boolean
7310 ieee_lineno (void *p, const char *filename, unsigned long lineno, bfd_vma addr)
7311 {
7312   struct ieee_handle *info = (struct ieee_handle *) p;
7313 
7314   assert (info->filename != NULL);
7315 
7316   /* The HP simulator seems to get confused when more than one line is
7317      listed for the same address, at least if they are in different
7318      files.  We handle this by always listing the last line for a
7319      given address, since that seems to be the one that gdb uses.  */
7320   if (info->pending_lineno_filename != NULL
7321       && addr != info->pending_lineno_addr)
7322     {
7323       /* Make sure we have a line number block.  */
7324       if (! ieee_buffer_emptyp (&info->linenos))
7325 	{
7326 	  if (! ieee_change_buffer (info, &info->linenos))
7327 	    return FALSE;
7328 	}
7329       else
7330 	{
7331 	  info->lineno_name_indx = info->name_indx;
7332 	  ++info->name_indx;
7333 	  if (! ieee_change_buffer (info, &info->linenos)
7334 	      || ! ieee_write_byte (info, (int) ieee_bb_record_enum)
7335 	      || ! ieee_write_byte (info, 5)
7336 	      || ! ieee_write_number (info, 0)
7337 	      || ! ieee_write_id (info, info->filename)
7338 	      || ! ieee_write_byte (info, (int) ieee_nn_record)
7339 	      || ! ieee_write_number (info, info->lineno_name_indx)
7340 	      || ! ieee_write_id (info, ""))
7341 	    return FALSE;
7342 	  info->lineno_filename = info->filename;
7343 	}
7344 
7345       if (strcmp (info->pending_lineno_filename, info->lineno_filename) != 0)
7346 	{
7347 	  if (strcmp (info->filename, info->lineno_filename) != 0)
7348 	    {
7349 	      /* We were not in the main file.  Close the block for the
7350 		 included file.  */
7351 	      if (! ieee_write_byte (info, (int) ieee_be_record_enum))
7352 		return FALSE;
7353 	      if (strcmp (info->filename, info->pending_lineno_filename) == 0)
7354 		{
7355 		  /* We need a new NN record, and we aren't about to
7356 		     output one.  */
7357 		  info->lineno_name_indx = info->name_indx;
7358 		  ++info->name_indx;
7359 		  if (! ieee_write_byte (info, (int) ieee_nn_record)
7360 		      || ! ieee_write_number (info, info->lineno_name_indx)
7361 		      || ! ieee_write_id (info, ""))
7362 		    return FALSE;
7363 		}
7364 	    }
7365 	  if (strcmp (info->filename, info->pending_lineno_filename) != 0)
7366 	    {
7367 	      /* We are not changing to the main file.  Open a block for
7368 		 the new included file.  */
7369 	      info->lineno_name_indx = info->name_indx;
7370 	      ++info->name_indx;
7371 	      if (! ieee_write_byte (info, (int) ieee_bb_record_enum)
7372 		  || ! ieee_write_byte (info, 5)
7373 		  || ! ieee_write_number (info, 0)
7374 		  || ! ieee_write_id (info, info->pending_lineno_filename)
7375 		  || ! ieee_write_byte (info, (int) ieee_nn_record)
7376 		  || ! ieee_write_number (info, info->lineno_name_indx)
7377 		  || ! ieee_write_id (info, ""))
7378 		return FALSE;
7379 	    }
7380 	  info->lineno_filename = info->pending_lineno_filename;
7381 	}
7382 
7383       if (! ieee_write_2bytes (info, (int) ieee_atn_record_enum)
7384 	  || ! ieee_write_number (info, info->lineno_name_indx)
7385 	  || ! ieee_write_number (info, 0)
7386 	  || ! ieee_write_number (info, 7)
7387 	  || ! ieee_write_number (info, info->pending_lineno)
7388 	  || ! ieee_write_number (info, 0)
7389 	  || ! ieee_write_asn (info, info->lineno_name_indx,
7390 			       info->pending_lineno_addr))
7391 	return FALSE;
7392     }
7393 
7394   info->pending_lineno_filename = filename;
7395   info->pending_lineno = lineno;
7396   info->pending_lineno_addr = addr;
7397 
7398   return TRUE;
7399 }
7400