Fix -Werror -Wuninitialized warnings.
[deliverable/binutils-gdb.git] / gdb / hp-symtab-read.c
1 /* Read hp debug symbols and convert to internal format, for GDB.
2 Copyright 1993, 1996, 1998, 1999, 2000 Free Software Foundation, Inc.
3
4 This file is part of GDB.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA.
20
21 Written by the Center for Software Science at the University of Utah
22 and by Cygnus Support. */
23
24 /* Common include for hp-symtab-read.c and hp-psymtab-read.c.
25 * Note this has nested includes for a bunch of stuff.
26 */
27 #include "defs.h"
28 #include "symtab.h"
29 #include "gdbtypes.h"
30 #include "hpread.h"
31 #include "demangle.h"
32 #include "complaints.h"
33 \f
34
35
36
37 static struct complaint hpread_unhandled_end_common_complaint =
38 {
39 "unhandled symbol in hp-symtab-read.c: DNTT_TYPE_COMMON/DNTT_TYPE_END.\n", 0, 0
40 };
41
42 static struct complaint hpread_unhandled_type_complaint =
43 {
44 "hpread_type_translate: unhandled type code.", 0, 0
45 };
46
47 static struct complaint hpread_struct_complaint =
48 {
49 "hpread_read_struct_type: expected SVAR type...", 0, 0
50 };
51
52 static struct complaint hpread_array_complaint =
53 {
54 "error in hpread_array_type.", 0, 0
55 };
56
57 static struct complaint hpread_type_lookup_complaint =
58 {
59 "error in hpread_type_lookup().", 0, 0
60 };
61
62
63 static struct complaint hpread_unexpected_end_complaint =
64 {
65 "internal error in hp-symtab-read.c: Unexpected DNTT_TYPE_END kind.", 0, 0
66 };
67
68 static struct complaint hpread_tagdef_complaint =
69 {
70 "error processing class tagdef", 0, 0
71 };
72
73 static struct complaint hpread_unhandled_common_complaint =
74 {
75 "unhandled symbol in hp-symtab-read.c: DNTT_TYPE_COMMON.", 0, 0
76 };
77
78 static struct complaint hpread_unhandled_blockdata_complaint =
79 {
80 "unhandled symbol in hp-symtab-read.c: DNTT_TYPE_BLOCKDATA.", 0, 0
81 };
82
83
84 /* Forward procedure declarations */
85
86 static unsigned long hpread_get_scope_start (sltpointer, struct objfile *);
87
88 static unsigned long hpread_get_line (sltpointer, struct objfile *);
89
90 static CORE_ADDR hpread_get_location (sltpointer, struct objfile *);
91
92 static void hpread_psymtab_to_symtab_1 (struct partial_symtab *);
93
94 void hpread_psymtab_to_symtab (struct partial_symtab *);
95
96 static struct symtab *hpread_expand_symtab
97 (struct objfile *, int, int, CORE_ADDR, int,
98 struct section_offsets *, char *);
99
100 static int hpread_type_translate (dnttpointer);
101
102 static struct type **hpread_lookup_type (dnttpointer, struct objfile *);
103
104 static struct type *hpread_alloc_type (dnttpointer, struct objfile *);
105
106 static struct type *hpread_read_enum_type
107 (dnttpointer, union dnttentry *, struct objfile *);
108
109 static struct type *hpread_read_function_type
110 (dnttpointer, union dnttentry *, struct objfile *, int);
111
112 static struct type *hpread_read_doc_function_type
113 (dnttpointer, union dnttentry *, struct objfile *, int);
114
115 static struct type *hpread_read_struct_type
116 (dnttpointer, union dnttentry *, struct objfile *);
117
118 static struct type *hpread_get_nth_template_arg (struct objfile *, int);
119
120 static struct type *hpread_read_templ_arg_type
121 (dnttpointer, union dnttentry *, struct objfile *, char *);
122
123 static struct type *hpread_read_set_type
124 (dnttpointer, union dnttentry *, struct objfile *);
125
126 static struct type *hpread_read_array_type
127 (dnttpointer, union dnttentry *dn_bufp, struct objfile *objfile);
128
129 static struct type *hpread_read_subrange_type
130 (dnttpointer, union dnttentry *, struct objfile *);
131
132 static struct type *hpread_type_lookup (dnttpointer, struct objfile *);
133
134 static sltpointer hpread_record_lines
135 (struct subfile *, sltpointer, sltpointer, struct objfile *, CORE_ADDR);
136
137 static void hpread_process_one_debug_symbol
138 (union dnttentry *, char *, struct section_offsets *,
139 struct objfile *, CORE_ADDR, int, char *, int, int *);
140
141 static int hpread_get_scope_depth (union dnttentry *, struct objfile *, int);
142
143 static void fix_static_member_physnames
144 (struct type *, char *, struct objfile *);
145
146 static void fixup_class_method_type
147 (struct type *, struct type *, struct objfile *);
148
149 static void hpread_adjust_bitoffsets (struct type *, int);
150
151 static dnttpointer hpread_get_next_skip_over_anon_unions
152 (int, dnttpointer, union dnttentry **, struct objfile *);
153
154 /* Global to indicate presence of HP-compiled objects,
155 in particular, SOM executable file with SOM debug info
156 Defined in symtab.c, used in hppa-tdep.c. */
157 extern int hp_som_som_object_present;
158
159 /* Static used to indicate a class type that requires a
160 fix-up of one of its method types */
161 static struct type *fixup_class = NULL;
162
163 /* Static used to indicate the method type that is to be
164 used to fix-up the type for fixup_class */
165 static struct type *fixup_method = NULL;
166 \f
167
168
169 /* Get the nesting depth for the source line identified by INDEX. */
170
171 static unsigned long
172 hpread_get_scope_start (sltpointer index, struct objfile *objfile)
173 {
174 union sltentry *sl_bufp;
175
176 sl_bufp = hpread_get_slt (index, objfile);
177 return sl_bufp->sspec.backptr.dnttp.index;
178 }
179
180 /* Get the source line number the the line identified by INDEX. */
181
182 static unsigned long
183 hpread_get_line (sltpointer index, struct objfile *objfile)
184 {
185 union sltentry *sl_bufp;
186
187 sl_bufp = hpread_get_slt (index, objfile);
188 return sl_bufp->snorm.line;
189 }
190
191 /* Find the code address associated with a given sltpointer */
192
193 static CORE_ADDR
194 hpread_get_location (sltpointer index, struct objfile *objfile)
195 {
196 union sltentry *sl_bufp;
197 int i;
198
199 /* code location of special sltentrys is determined from context */
200 sl_bufp = hpread_get_slt (index, objfile);
201
202 if (sl_bufp->snorm.sltdesc == SLT_END)
203 {
204 /* find previous normal sltentry and get address */
205 for (i = 0; ((sl_bufp->snorm.sltdesc != SLT_NORMAL) &&
206 (sl_bufp->snorm.sltdesc != SLT_NORMAL_OFFSET) &&
207 (sl_bufp->snorm.sltdesc != SLT_EXIT)); i++)
208 sl_bufp = hpread_get_slt (index - i, objfile);
209 if (sl_bufp->snorm.sltdesc == SLT_NORMAL_OFFSET)
210 return sl_bufp->snormoff.address;
211 else
212 return sl_bufp->snorm.address;
213 }
214
215 /* find next normal sltentry and get address */
216 for (i = 0; ((sl_bufp->snorm.sltdesc != SLT_NORMAL) &&
217 (sl_bufp->snorm.sltdesc != SLT_NORMAL_OFFSET) &&
218 (sl_bufp->snorm.sltdesc != SLT_EXIT)); i++)
219 sl_bufp = hpread_get_slt (index + i, objfile);
220 if (sl_bufp->snorm.sltdesc == SLT_NORMAL_OFFSET)
221 return sl_bufp->snormoff.address;
222 else
223 return sl_bufp->snorm.address;
224 }
225 \f
226
227 /* Return 1 if an HP debug symbol of type KIND has a name associated with
228 * it, else return 0. (This function is not currently used, but I'll
229 * leave it here in case it proves useful later on. - RT).
230 */
231
232 int
233 hpread_has_name (enum dntt_entry_type kind)
234 {
235 switch (kind)
236 {
237 case DNTT_TYPE_SRCFILE:
238 case DNTT_TYPE_MODULE:
239 case DNTT_TYPE_FUNCTION:
240 case DNTT_TYPE_DOC_FUNCTION:
241 case DNTT_TYPE_ENTRY:
242 case DNTT_TYPE_IMPORT:
243 case DNTT_TYPE_LABEL:
244 case DNTT_TYPE_FPARAM:
245 case DNTT_TYPE_SVAR:
246 case DNTT_TYPE_DVAR:
247 case DNTT_TYPE_CONST:
248 case DNTT_TYPE_TYPEDEF:
249 case DNTT_TYPE_TAGDEF:
250 case DNTT_TYPE_MEMENUM:
251 case DNTT_TYPE_FIELD:
252 case DNTT_TYPE_SA:
253 case DNTT_TYPE_BLOCKDATA:
254 case DNTT_TYPE_MEMFUNC:
255 case DNTT_TYPE_DOC_MEMFUNC:
256 return 1;
257
258 case DNTT_TYPE_BEGIN:
259 case DNTT_TYPE_END:
260 case DNTT_TYPE_POINTER:
261 case DNTT_TYPE_ENUM:
262 case DNTT_TYPE_SET:
263 case DNTT_TYPE_ARRAY:
264 case DNTT_TYPE_STRUCT:
265 case DNTT_TYPE_UNION:
266 case DNTT_TYPE_VARIANT:
267 case DNTT_TYPE_FILE:
268 case DNTT_TYPE_FUNCTYPE:
269 case DNTT_TYPE_SUBRANGE:
270 case DNTT_TYPE_WITH:
271 case DNTT_TYPE_COMMON:
272 case DNTT_TYPE_COBSTRUCT:
273 case DNTT_TYPE_XREF:
274 case DNTT_TYPE_MACRO:
275 case DNTT_TYPE_CLASS_SCOPE:
276 case DNTT_TYPE_REFERENCE:
277 case DNTT_TYPE_PTRMEM:
278 case DNTT_TYPE_PTRMEMFUNC:
279 case DNTT_TYPE_CLASS:
280 case DNTT_TYPE_GENFIELD:
281 case DNTT_TYPE_VFUNC:
282 case DNTT_TYPE_MEMACCESS:
283 case DNTT_TYPE_INHERITANCE:
284 case DNTT_TYPE_FRIEND_CLASS:
285 case DNTT_TYPE_FRIEND_FUNC:
286 case DNTT_TYPE_MODIFIER:
287 case DNTT_TYPE_OBJECT_ID:
288 case DNTT_TYPE_TEMPLATE:
289 case DNTT_TYPE_TEMPLATE_ARG:
290 case DNTT_TYPE_FUNC_TEMPLATE:
291 case DNTT_TYPE_LINK:
292 /* DNTT_TYPE_DYN_ARRAY_DESC ? */
293 /* DNTT_TYPE_DESC_SUBRANGE ? */
294 /* DNTT_TYPE_BEGIN_EXT ? */
295 /* DNTT_TYPE_INLN ? */
296 /* DNTT_TYPE_INLN_LIST ? */
297 /* DNTT_TYPE_ALIAS ? */
298 default:
299 return 0;
300 }
301 }
302
303 /* Do the dirty work of reading in the full symbol from a partial symbol
304 table. */
305
306 static void
307 hpread_psymtab_to_symtab_1 (struct partial_symtab *pst)
308 {
309 struct cleanup *old_chain;
310 int i;
311
312 /* Get out quick if passed junk. */
313 if (!pst)
314 return;
315
316 /* Complain if we've already read in this symbol table. */
317 if (pst->readin)
318 {
319 fprintf (stderr, "Psymtab for %s already read in. Shouldn't happen.\n",
320 pst->filename);
321 return;
322 }
323
324 /* Read in all partial symtabs on which this one is dependent */
325 for (i = 0; i < pst->number_of_dependencies; i++)
326 if (!pst->dependencies[i]->readin)
327 {
328 /* Inform about additional files that need to be read in. */
329 if (info_verbose)
330 {
331 fputs_filtered (" ", gdb_stdout);
332 wrap_here ("");
333 fputs_filtered ("and ", gdb_stdout);
334 wrap_here ("");
335 printf_filtered ("%s...", pst->dependencies[i]->filename);
336 wrap_here (""); /* Flush output */
337 gdb_flush (gdb_stdout);
338 }
339 hpread_psymtab_to_symtab_1 (pst->dependencies[i]);
340 }
341
342 /* If it's real... */
343 if (LDSYMLEN (pst))
344 {
345 /* Init stuff necessary for reading in symbols */
346 buildsym_init ();
347 old_chain = make_cleanup (really_free_pendings, 0);
348
349 pst->symtab =
350 hpread_expand_symtab (pst->objfile, LDSYMOFF (pst), LDSYMLEN (pst),
351 pst->textlow, pst->texthigh - pst->textlow,
352 pst->section_offsets, pst->filename);
353 sort_symtab_syms (pst->symtab);
354
355 do_cleanups (old_chain);
356 }
357
358 pst->readin = 1;
359 }
360
361 /* Read in all of the symbols for a given psymtab for real.
362 Be verbose about it if the user wants that. */
363
364 void
365 hpread_psymtab_to_symtab (struct partial_symtab *pst)
366 {
367 /* Get out quick if given junk. */
368 if (!pst)
369 return;
370
371 /* Sanity check. */
372 if (pst->readin)
373 {
374 fprintf (stderr, "Psymtab for %s already read in. Shouldn't happen.\n",
375 pst->filename);
376 return;
377 }
378
379 /* elz: setting the flag to indicate that the code of the target
380 was compiled using an HP compiler (aCC, cc)
381 the processing_acc_compilation variable is declared in the
382 file buildsym.h, the HP_COMPILED_TARGET is defined to be equal
383 to 3 in the file tm_hppa.h */
384
385 processing_gcc_compilation = 0;
386
387 if (LDSYMLEN (pst) || pst->number_of_dependencies)
388 {
389 /* Print the message now, before reading the string table,
390 to avoid disconcerting pauses. */
391 if (info_verbose)
392 {
393 printf_filtered ("Reading in symbols for %s...", pst->filename);
394 gdb_flush (gdb_stdout);
395 }
396
397 hpread_psymtab_to_symtab_1 (pst);
398
399 /* Match with global symbols. This only needs to be done once,
400 after all of the symtabs and dependencies have been read in. */
401 scan_file_globals (pst->objfile);
402
403 /* Finish up the debug error message. */
404 if (info_verbose)
405 printf_filtered ("done.\n");
406 }
407 }
408
409 /* Read in a defined section of a specific object file's symbols.
410
411 DESC is the file descriptor for the file, positioned at the
412 beginning of the symtab
413 SYM_OFFSET is the offset within the file of
414 the beginning of the symbols we want to read
415 SYM_SIZE is the size of the symbol info to read in.
416 TEXT_OFFSET is the beginning of the text segment we are reading symbols for
417 TEXT_SIZE is the size of the text segment read in.
418 SECTION_OFFSETS are the relocation offsets which get added to each symbol. */
419
420 static struct symtab *
421 hpread_expand_symtab (struct objfile *objfile, int sym_offset, int sym_size,
422 CORE_ADDR text_offset, int text_size,
423 struct section_offsets *section_offsets, char *filename)
424 {
425 char *namestring;
426 union dnttentry *dn_bufp;
427 unsigned max_symnum;
428 int at_module_boundary = 0;
429 /* 1 => at end, -1 => at beginning */
430
431 int sym_index = sym_offset / sizeof (struct dntt_type_block);
432
433 current_objfile = objfile;
434 subfile_stack = 0;
435
436 last_source_file = 0;
437
438 /* Demangling style -- if EDG style already set, don't change it,
439 as HP style causes some problems with the KAI EDG compiler */
440 if (current_demangling_style != edg_demangling)
441 {
442 /* Otherwise, ensure that we are using HP style demangling */
443 set_demangling_style (HP_DEMANGLING_STYLE_STRING);
444 }
445
446 dn_bufp = hpread_get_lntt (sym_index, objfile);
447 if (!((dn_bufp->dblock.kind == (unsigned char) DNTT_TYPE_SRCFILE) ||
448 (dn_bufp->dblock.kind == (unsigned char) DNTT_TYPE_MODULE)))
449 {
450 start_symtab ("globals", NULL, 0);
451 record_debugformat ("HP");
452 }
453
454 /* The psymtab builder (hp-psymtab-read.c) is the one that
455 * determined the "sym_size" argument (i.e. how many DNTT symbols
456 * are in this symtab), which we use to compute "max_symnum"
457 * (point in DNTT to which we read).
458 *
459 * Perhaps this should be changed so that
460 * process_one_debug_symbol() "knows" when
461 * to stop reading (based on reading from the MODULE to the matching
462 * END), and take out this reliance on a #-syms being passed in...
463 * (I'm worried about the reliability of this number). But I'll
464 * leave it as-is, for now. - RT
465 *
466 * The change above has been made. I've left the "for" loop control
467 * in to prepare for backing this out again. -JB
468 */
469 max_symnum = sym_size / sizeof (struct dntt_type_block);
470 /* No reason to multiply on pst side and divide on sym side... FIXME */
471
472 /* Read in and process each debug symbol within the specified range.
473 */
474 for (symnum = 0;
475 symnum < max_symnum;
476 symnum++)
477 {
478 QUIT; /* Allow this to be interruptable */
479 dn_bufp = hpread_get_lntt (sym_index + symnum, objfile);
480
481 if (dn_bufp->dblock.extension)
482 continue;
483
484 /* Yow! We call SET_NAMESTRING on things without names! */
485 SET_NAMESTRING (dn_bufp, &namestring, objfile);
486
487 hpread_process_one_debug_symbol (dn_bufp, namestring, section_offsets,
488 objfile, text_offset, text_size,
489 filename, symnum + sym_index,
490 &at_module_boundary
491 );
492
493 /* OLD COMMENTS: This routine is only called for psts. All psts
494 * correspond to MODULES. If we ever do lazy-reading of globals
495 * from the LNTT, then there will be a pst which ends when the
496 * LNTT ends, and not at an END MODULE entry. Then we'll have
497 * to re-visit this break.
498
499 if( at_end_of_module )
500 break;
501
502 */
503
504 /* We no longer break out of the loop when we reach the end of a
505 module. The reason is that with CTTI, the compiler can generate
506 function symbols (for template function instantiations) which are not
507 in any module; typically they show up beyond a module's end, and
508 before the next module's start. We include them in the current
509 module. However, we still don't trust the MAX_SYMNUM value from
510 the psymtab, so we break out if we enter a new module. */
511
512 if (at_module_boundary == -1)
513 break;
514 }
515
516 current_objfile = NULL;
517 hp_som_som_object_present = 1; /* Indicate we've processed an HP SOM SOM file */
518
519 return end_symtab (text_offset + text_size, objfile, SECT_OFF_TEXT (objfile));
520 }
521 \f
522
523
524
525 /* Convert basic types from HP debug format into GDB internal format. */
526
527 static int
528 hpread_type_translate (dnttpointer typep)
529 {
530 if (!typep.dntti.immediate)
531 {
532 error ("error in hpread_type_translate\n.");
533 return;
534 }
535
536 switch (typep.dntti.type)
537 {
538 case HP_TYPE_BOOLEAN:
539 case HP_TYPE_BOOLEAN_S300_COMPAT:
540 case HP_TYPE_BOOLEAN_VAX_COMPAT:
541 return FT_BOOLEAN;
542 case HP_TYPE_CHAR: /* C signed char, C++ plain char */
543
544 case HP_TYPE_WIDE_CHAR:
545 return FT_CHAR;
546 case HP_TYPE_INT:
547 if (typep.dntti.bitlength <= 8)
548 return FT_SIGNED_CHAR; /* C++ signed char */
549 if (typep.dntti.bitlength <= 16)
550 return FT_SHORT;
551 if (typep.dntti.bitlength <= 32)
552 return FT_INTEGER;
553 return FT_LONG_LONG;
554 case HP_TYPE_LONG:
555 if (typep.dntti.bitlength <= 8)
556 return FT_SIGNED_CHAR; /* C++ signed char. */
557 return FT_LONG;
558 case HP_TYPE_UNSIGNED_LONG:
559 if (typep.dntti.bitlength <= 8)
560 return FT_UNSIGNED_CHAR; /* C/C++ unsigned char */
561 if (typep.dntti.bitlength <= 16)
562 return FT_UNSIGNED_SHORT;
563 if (typep.dntti.bitlength <= 32)
564 return FT_UNSIGNED_LONG;
565 return FT_UNSIGNED_LONG_LONG;
566 case HP_TYPE_UNSIGNED_INT:
567 if (typep.dntti.bitlength <= 8)
568 return FT_UNSIGNED_CHAR;
569 if (typep.dntti.bitlength <= 16)
570 return FT_UNSIGNED_SHORT;
571 if (typep.dntti.bitlength <= 32)
572 return FT_UNSIGNED_INTEGER;
573 return FT_UNSIGNED_LONG_LONG;
574 case HP_TYPE_REAL:
575 case HP_TYPE_REAL_3000:
576 case HP_TYPE_DOUBLE:
577 if (typep.dntti.bitlength == 64)
578 return FT_DBL_PREC_FLOAT;
579 if (typep.dntti.bitlength == 128)
580 return FT_EXT_PREC_FLOAT;
581 return FT_FLOAT;
582 case HP_TYPE_COMPLEX:
583 case HP_TYPE_COMPLEXS3000:
584 if (typep.dntti.bitlength == 128)
585 return FT_DBL_PREC_COMPLEX;
586 if (typep.dntti.bitlength == 192)
587 return FT_EXT_PREC_COMPLEX;
588 return FT_COMPLEX;
589 case HP_TYPE_VOID:
590 return FT_VOID;
591 case HP_TYPE_STRING200:
592 case HP_TYPE_LONGSTRING200:
593 case HP_TYPE_FTN_STRING_SPEC:
594 case HP_TYPE_MOD_STRING_SPEC:
595 case HP_TYPE_MOD_STRING_3000:
596 case HP_TYPE_FTN_STRING_S300_COMPAT:
597 case HP_TYPE_FTN_STRING_VAX_COMPAT:
598 return FT_STRING;
599 case HP_TYPE_TEMPLATE_ARG:
600 return FT_TEMPLATE_ARG;
601 case HP_TYPE_TEXT:
602 case HP_TYPE_FLABEL:
603 case HP_TYPE_PACKED_DECIMAL:
604 case HP_TYPE_ANYPOINTER:
605 case HP_TYPE_GLOBAL_ANYPOINTER:
606 case HP_TYPE_LOCAL_ANYPOINTER:
607 default:
608 warning ("hpread_type_translate: unhandled type code.\n");
609 return FT_VOID;
610 }
611 }
612
613 /* Given a position in the DNTT, return a pointer to the
614 * already-built "struct type" (if any), for the type defined
615 * at that position.
616 */
617
618 static struct type **
619 hpread_lookup_type (dnttpointer hp_type, struct objfile *objfile)
620 {
621 unsigned old_len;
622 int index = hp_type.dnttp.index;
623 int size_changed = 0;
624
625 /* The immediate flag indicates this doesn't actually point to
626 * a type DNTT.
627 */
628 if (hp_type.dntti.immediate)
629 return NULL;
630
631 /* For each objfile, we maintain a "type vector".
632 * This an array of "struct type *"'s with one pointer per DNTT index.
633 * Given a DNTT index, we look in this array to see if we have
634 * already processed this DNTT and if it is a type definition.
635 * If so, then we can locate a pointer to the already-built
636 * "struct type", and not build it again.
637 *
638 * The need for this arises because our DNTT-walking code wanders
639 * around. In particular, it will encounter the same type multiple
640 * times (once for each object of that type). We don't want to
641 * built multiple "struct type"'s for the same thing.
642 *
643 * Having said this, I should point out that this type-vector is
644 * an expensive way to keep track of this. If most DNTT entries are
645 * 3 words, the type-vector will be 1/3 the size of the DNTT itself.
646 * Alternative solutions:
647 * - Keep a compressed or hashed table. Less memory, but more expensive
648 * to search and update.
649 * - (Suggested by JB): Overwrite the DNTT entry itself
650 * with the info. Create a new type code "ALREADY_BUILT", and modify
651 * the DNTT to have that type code and point to the already-built entry.
652 * -RT
653 */
654
655 if (index < LNTT_SYMCOUNT (objfile))
656 {
657 if (index >= TYPE_VECTOR_LENGTH (objfile))
658 {
659 old_len = TYPE_VECTOR_LENGTH (objfile);
660
661 /* See if we need to allocate a type-vector. */
662 if (old_len == 0)
663 {
664 TYPE_VECTOR_LENGTH (objfile) = LNTT_SYMCOUNT (objfile) + GNTT_SYMCOUNT (objfile);
665 TYPE_VECTOR (objfile) = (struct type **)
666 xmmalloc (objfile->md, TYPE_VECTOR_LENGTH (objfile) * sizeof (struct type *));
667 memset (&TYPE_VECTOR (objfile)[old_len], 0,
668 (TYPE_VECTOR_LENGTH (objfile) - old_len) *
669 sizeof (struct type *));
670 }
671
672 /* See if we need to resize type-vector. With my change to
673 * initially allocate a correct-size type-vector, this code
674 * should no longer trigger.
675 */
676 while (index >= TYPE_VECTOR_LENGTH (objfile))
677 {
678 TYPE_VECTOR_LENGTH (objfile) *= 2;
679 size_changed = 1;
680 }
681 if (size_changed)
682 {
683 TYPE_VECTOR (objfile) = (struct type **)
684 xmrealloc (objfile->md,
685 (char *) TYPE_VECTOR (objfile),
686 (TYPE_VECTOR_LENGTH (objfile) * sizeof (struct type *)));
687
688 memset (&TYPE_VECTOR (objfile)[old_len], 0,
689 (TYPE_VECTOR_LENGTH (objfile) - old_len) *
690 sizeof (struct type *));
691 }
692
693 }
694 return &TYPE_VECTOR (objfile)[index];
695 }
696 else
697 return NULL;
698 }
699
700 /* Possibly allocate a GDB internal type so we can internalize HP_TYPE.
701 Note we'll just return the address of a GDB internal type if we already
702 have it lying around. */
703
704 static struct type *
705 hpread_alloc_type (dnttpointer hp_type, struct objfile *objfile)
706 {
707 struct type **type_addr;
708
709 type_addr = hpread_lookup_type (hp_type, objfile);
710 if (*type_addr == 0)
711 {
712 *type_addr = alloc_type (objfile);
713
714 /* A hack - if we really are a C++ class symbol, then this default
715 * will get overriden later on.
716 */
717 TYPE_CPLUS_SPECIFIC (*type_addr)
718 = (struct cplus_struct_type *) &cplus_struct_default;
719 }
720
721 return *type_addr;
722 }
723
724 /* Read a native enumerated type and return it in GDB internal form. */
725
726 static struct type *
727 hpread_read_enum_type (dnttpointer hp_type, union dnttentry *dn_bufp,
728 struct objfile *objfile)
729 {
730 struct type *type;
731 struct pending **symlist, *osyms, *syms;
732 struct pending *local_list = NULL;
733 int o_nsyms, nsyms = 0;
734 dnttpointer mem;
735 union dnttentry *memp;
736 char *name;
737 long n;
738 struct symbol *sym;
739
740 /* Allocate a GDB type. If we've already read in this enum type,
741 * it'll return the already built GDB type, so stop here.
742 * (Note: I added this check, to conform with what's done for
743 * struct, union, class.
744 * I assume this is OK. - RT)
745 */
746 type = hpread_alloc_type (hp_type, objfile);
747 if (TYPE_CODE (type) == TYPE_CODE_ENUM)
748 return type;
749
750 /* HP C supports "sized enums", where a specifier such as "short" or
751 "char" can be used to get enums of different sizes. So don't assume
752 an enum is always 4 bytes long. pai/1997-08-21 */
753 TYPE_LENGTH (type) = dn_bufp->denum.bitlength / 8;
754
755 symlist = &file_symbols;
756 osyms = *symlist;
757 o_nsyms = osyms ? osyms->nsyms : 0;
758
759 /* Get a name for each member and add it to our list of members.
760 * The list of "mem" SOM records we are walking should all be
761 * SOM type DNTT_TYPE_MEMENUM (not checked).
762 */
763 mem = dn_bufp->denum.firstmem;
764 while (mem.word && mem.word != DNTTNIL)
765 {
766 memp = hpread_get_lntt (mem.dnttp.index, objfile);
767
768 name = VT (objfile) + memp->dmember.name;
769 sym = (struct symbol *) obstack_alloc (&objfile->symbol_obstack,
770 sizeof (struct symbol));
771 memset (sym, 0, sizeof (struct symbol));
772 SYMBOL_NAME (sym) = obsavestring (name, strlen (name),
773 &objfile->symbol_obstack);
774 SYMBOL_CLASS (sym) = LOC_CONST;
775 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
776 SYMBOL_VALUE (sym) = memp->dmember.value;
777 add_symbol_to_list (sym, symlist);
778 nsyms++;
779 mem = memp->dmember.nextmem;
780 }
781
782 /* Now that we know more about the enum, fill in more info. */
783 TYPE_CODE (type) = TYPE_CODE_ENUM;
784 TYPE_FLAGS (type) &= ~TYPE_FLAG_STUB;
785 TYPE_NFIELDS (type) = nsyms;
786 TYPE_FIELDS (type) = (struct field *)
787 obstack_alloc (&objfile->type_obstack, sizeof (struct field) * nsyms);
788
789 /* Find the symbols for the members and put them into the type.
790 The symbols can be found in the symlist that we put them on
791 to cause them to be defined. osyms contains the old value
792 of that symlist; everything up to there was defined by us.
793
794 Note that we preserve the order of the enum constants, so
795 that in something like "enum {FOO, LAST_THING=FOO}" we print
796 FOO, not LAST_THING. */
797 for (syms = *symlist, n = 0; syms; syms = syms->next)
798 {
799 int j = 0;
800 if (syms == osyms)
801 j = o_nsyms;
802 for (; j < syms->nsyms; j++, n++)
803 {
804 struct symbol *xsym = syms->symbol[j];
805 SYMBOL_TYPE (xsym) = type;
806 TYPE_FIELD_NAME (type, n) = SYMBOL_NAME (xsym);
807 TYPE_FIELD_BITPOS (type, n) = SYMBOL_VALUE (xsym);
808 TYPE_FIELD_BITSIZE (type, n) = 0;
809 }
810 if (syms == osyms)
811 break;
812 }
813
814 return type;
815 }
816
817 /* Read and internalize a native function debug symbol. */
818
819 static struct type *
820 hpread_read_function_type (dnttpointer hp_type, union dnttentry *dn_bufp,
821 struct objfile *objfile, int newblock)
822 {
823 struct type *type, *type1;
824 struct pending *syms;
825 struct pending *local_list = NULL;
826 int nsyms = 0;
827 dnttpointer param;
828 union dnttentry *paramp;
829 char *name;
830 long n;
831 struct symbol *sym;
832 int record_args = 1;
833
834 /* See if we've already read in this type. */
835 type = hpread_alloc_type (hp_type, objfile);
836 if (TYPE_CODE (type) == TYPE_CODE_FUNC)
837 {
838 record_args = 0; /* already read in, don't modify type */
839 }
840 else
841 {
842 /* Nope, so read it in and store it away. */
843 if (dn_bufp->dblock.kind == DNTT_TYPE_FUNCTION ||
844 dn_bufp->dblock.kind == DNTT_TYPE_MEMFUNC)
845 type1 = lookup_function_type (hpread_type_lookup (dn_bufp->dfunc.retval,
846 objfile));
847 else if (dn_bufp->dblock.kind == DNTT_TYPE_FUNCTYPE)
848 type1 = lookup_function_type (hpread_type_lookup (dn_bufp->dfunctype.retval,
849 objfile));
850 else /* expect DNTT_TYPE_FUNC_TEMPLATE */
851 type1 = lookup_function_type (hpread_type_lookup (dn_bufp->dfunc_template.retval,
852 objfile));
853 memcpy ((char *) type, (char *) type1, sizeof (struct type));
854
855 /* Mark it -- in the middle of processing */
856 TYPE_FLAGS (type) |= TYPE_FLAG_INCOMPLETE;
857 }
858
859 /* Now examine each parameter noting its type, location, and a
860 wealth of other information. */
861 if (dn_bufp->dblock.kind == DNTT_TYPE_FUNCTION ||
862 dn_bufp->dblock.kind == DNTT_TYPE_MEMFUNC)
863 param = dn_bufp->dfunc.firstparam;
864 else if (dn_bufp->dblock.kind == DNTT_TYPE_FUNCTYPE)
865 param = dn_bufp->dfunctype.firstparam;
866 else /* expect DNTT_TYPE_FUNC_TEMPLATE */
867 param = dn_bufp->dfunc_template.firstparam;
868 while (param.word && param.word != DNTTNIL)
869 {
870 paramp = hpread_get_lntt (param.dnttp.index, objfile);
871 nsyms++;
872 param = paramp->dfparam.nextparam;
873
874 /* Get the name. */
875 name = VT (objfile) + paramp->dfparam.name;
876 sym = (struct symbol *) obstack_alloc (&objfile->symbol_obstack,
877 sizeof (struct symbol));
878 (void) memset (sym, 0, sizeof (struct symbol));
879 SYMBOL_NAME (sym) = obsavestring (name, strlen (name),
880 &objfile->symbol_obstack);
881
882 /* Figure out where it lives. */
883 if (paramp->dfparam.regparam)
884 SYMBOL_CLASS (sym) = LOC_REGPARM;
885 else if (paramp->dfparam.indirect)
886 SYMBOL_CLASS (sym) = LOC_REF_ARG;
887 else
888 SYMBOL_CLASS (sym) = LOC_ARG;
889 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
890 if (paramp->dfparam.copyparam)
891 {
892 SYMBOL_VALUE (sym) = paramp->dfparam.location;
893 #ifdef HPREAD_ADJUST_STACK_ADDRESS
894 SYMBOL_VALUE (sym)
895 += HPREAD_ADJUST_STACK_ADDRESS (CURRENT_FUNCTION_VALUE (objfile));
896 #endif
897 /* This is likely a pass-by-invisible reference parameter,
898 Hack on the symbol class to make GDB happy. */
899 /* ??rehrauer: This appears to be broken w/r/t to passing
900 C values of type float and struct. Perhaps this ought
901 to be highighted as a special case, but for now, just
902 allowing these to be LOC_ARGs seems to work fine.
903 */
904 #if 0
905 SYMBOL_CLASS (sym) = LOC_REGPARM_ADDR;
906 #endif
907 }
908 else
909 SYMBOL_VALUE (sym) = paramp->dfparam.location;
910
911 /* Get its type. */
912 SYMBOL_TYPE (sym) = hpread_type_lookup (paramp->dfparam.type, objfile);
913 /* Add it to the symbol list. */
914 /* Note 1 (RT) At the moment, add_symbol_to_list() is also being
915 * called on FPARAM symbols from the process_one_debug_symbol()
916 * level... so parameters are getting added twice! (this shows
917 * up in the symbol dump you get from "maint print symbols ...").
918 * Note 2 (RT) I took out the processing of FPARAM from the
919 * process_one_debug_symbol() level, so at the moment parameters are only
920 * being processed here. This seems to have no ill effect.
921 */
922 /* Note 3 (pai/1997-08-11) I removed the add_symbol_to_list() which put
923 each fparam on the local_symbols list from here. Now we use the
924 local_list to which fparams are added below, and set the param_symbols
925 global to point to that at the end of this routine. */
926 /* elz: I added this new list of symbols which is local to the function.
927 this list is the one which is actually used to build the type for the
928 function rather than the gloabal list pointed to by symlist.
929 Using a global list to keep track of the parameters is wrong, because
930 this function is called recursively if one parameter happend to be
931 a function itself with more parameters in it. Adding parameters to the
932 same global symbol list would not work!
933 Actually it did work in case of cc compiled programs where you do
934 not check the parameter lists of the arguments. */
935 add_symbol_to_list (sym, &local_list);
936
937 }
938
939 /* If type was read in earlier, don't bother with modifying
940 the type struct */
941 if (!record_args)
942 goto finish;
943
944 /* Note how many parameters we found. */
945 TYPE_NFIELDS (type) = nsyms;
946 TYPE_FIELDS (type) = (struct field *)
947 obstack_alloc (&objfile->type_obstack,
948 sizeof (struct field) * nsyms);
949
950 /* Find the symbols for the parameters and
951 use them to fill parameter-type information into the function-type.
952 The parameter symbols can be found in the local_list that we just put them on. */
953 /* Note that we preserve the order of the parameters, so
954 that in something like "enum {FOO, LAST_THING=FOO}" we print
955 FOO, not LAST_THING. */
956
957 /* get the parameters types from the local list not the global list
958 so that the type can be correctly constructed for functions which
959 have function as parameters */
960 for (syms = local_list, n = 0; syms; syms = syms->next)
961 {
962 int j = 0;
963 for (j = 0; j < syms->nsyms; j++, n++)
964 {
965 struct symbol *xsym = syms->symbol[j];
966 TYPE_FIELD_NAME (type, n) = SYMBOL_NAME (xsym);
967 TYPE_FIELD_TYPE (type, n) = SYMBOL_TYPE (xsym);
968 TYPE_FIELD_BITPOS (type, n) = n;
969 TYPE_FIELD_BITSIZE (type, n) = 0;
970 }
971 }
972 /* Mark it as having been processed */
973 TYPE_FLAGS (type) &= ~(TYPE_FLAG_INCOMPLETE);
974
975 /* Check whether we need to fix-up a class type with this function's type */
976 if (fixup_class && (fixup_method == type))
977 {
978 fixup_class_method_type (fixup_class, fixup_method, objfile);
979 fixup_class = NULL;
980 fixup_method = NULL;
981 }
982
983 /* Set the param list of this level of the context stack
984 to our local list. Do this only if this function was
985 called for creating a new block, and not if it was called
986 simply to get the function type. This prevents recursive
987 invocations from trashing param_symbols. */
988 finish:
989 if (newblock)
990 param_symbols = local_list;
991
992 return type;
993 }
994
995
996 /* Read and internalize a native DOC function debug symbol. */
997 /* This is almost identical to hpread_read_function_type(), except
998 * for references to dn_bufp->ddocfunc instead of db_bufp->dfunc.
999 * Since debug information for DOC functions is more likely to be
1000 * volatile, please leave it this way.
1001 */
1002 static struct type *
1003 hpread_read_doc_function_type (dnttpointer hp_type, union dnttentry *dn_bufp,
1004 struct objfile *objfile, int newblock)
1005 {
1006 struct type *type, *type1;
1007 struct pending *syms;
1008 struct pending *local_list = NULL;
1009 int nsyms = 0;
1010 dnttpointer param;
1011 union dnttentry *paramp;
1012 char *name;
1013 long n;
1014 struct symbol *sym;
1015 int record_args = 1;
1016
1017 /* See if we've already read in this type. */
1018 type = hpread_alloc_type (hp_type, objfile);
1019 if (TYPE_CODE (type) == TYPE_CODE_FUNC)
1020 {
1021 record_args = 0; /* already read in, don't modify type */
1022 }
1023 else
1024 {
1025 /* Nope, so read it in and store it away. */
1026 if (dn_bufp->dblock.kind == DNTT_TYPE_DOC_FUNCTION ||
1027 dn_bufp->dblock.kind == DNTT_TYPE_DOC_MEMFUNC)
1028 type1 = lookup_function_type (hpread_type_lookup (dn_bufp->ddocfunc.retval,
1029 objfile));
1030 memcpy ((char *) type, (char *) type1, sizeof (struct type));
1031
1032 /* Mark it -- in the middle of processing */
1033 TYPE_FLAGS (type) |= TYPE_FLAG_INCOMPLETE;
1034 }
1035
1036 /* Now examine each parameter noting its type, location, and a
1037 wealth of other information. */
1038 if (dn_bufp->dblock.kind == DNTT_TYPE_DOC_FUNCTION ||
1039 dn_bufp->dblock.kind == DNTT_TYPE_DOC_MEMFUNC)
1040 param = dn_bufp->ddocfunc.firstparam;
1041 while (param.word && param.word != DNTTNIL)
1042 {
1043 paramp = hpread_get_lntt (param.dnttp.index, objfile);
1044 nsyms++;
1045 param = paramp->dfparam.nextparam;
1046
1047 /* Get the name. */
1048 name = VT (objfile) + paramp->dfparam.name;
1049 sym = (struct symbol *) obstack_alloc (&objfile->symbol_obstack,
1050 sizeof (struct symbol));
1051 (void) memset (sym, 0, sizeof (struct symbol));
1052 SYMBOL_NAME (sym) = name;
1053
1054 /* Figure out where it lives. */
1055 if (paramp->dfparam.regparam)
1056 SYMBOL_CLASS (sym) = LOC_REGPARM;
1057 else if (paramp->dfparam.indirect)
1058 SYMBOL_CLASS (sym) = LOC_REF_ARG;
1059 else
1060 SYMBOL_CLASS (sym) = LOC_ARG;
1061 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
1062 if (paramp->dfparam.copyparam)
1063 {
1064 SYMBOL_VALUE (sym) = paramp->dfparam.location;
1065 #ifdef HPREAD_ADJUST_STACK_ADDRESS
1066 SYMBOL_VALUE (sym)
1067 += HPREAD_ADJUST_STACK_ADDRESS (CURRENT_FUNCTION_VALUE (objfile));
1068 #endif
1069 /* This is likely a pass-by-invisible reference parameter,
1070 Hack on the symbol class to make GDB happy. */
1071 /* ??rehrauer: This appears to be broken w/r/t to passing
1072 C values of type float and struct. Perhaps this ought
1073 to be highighted as a special case, but for now, just
1074 allowing these to be LOC_ARGs seems to work fine.
1075 */
1076 #if 0
1077 SYMBOL_CLASS (sym) = LOC_REGPARM_ADDR;
1078 #endif
1079 }
1080 else
1081 SYMBOL_VALUE (sym) = paramp->dfparam.location;
1082
1083 /* Get its type. */
1084 SYMBOL_TYPE (sym) = hpread_type_lookup (paramp->dfparam.type, objfile);
1085 /* Add it to the symbol list. */
1086 /* Note 1 (RT) At the moment, add_symbol_to_list() is also being
1087 * called on FPARAM symbols from the process_one_debug_symbol()
1088 * level... so parameters are getting added twice! (this shows
1089 * up in the symbol dump you get from "maint print symbols ...").
1090 * Note 2 (RT) I took out the processing of FPARAM from the
1091 * process_one_debug_symbol() level, so at the moment parameters are only
1092 * being processed here. This seems to have no ill effect.
1093 */
1094 /* Note 3 (pai/1997-08-11) I removed the add_symbol_to_list() which put
1095 each fparam on the local_symbols list from here. Now we use the
1096 local_list to which fparams are added below, and set the param_symbols
1097 global to point to that at the end of this routine. */
1098
1099 /* elz: I added this new list of symbols which is local to the function.
1100 this list is the one which is actually used to build the type for the
1101 function rather than the gloabal list pointed to by symlist.
1102 Using a global list to keep track of the parameters is wrong, because
1103 this function is called recursively if one parameter happend to be
1104 a function itself with more parameters in it. Adding parameters to the
1105 same global symbol list would not work!
1106 Actually it did work in case of cc compiled programs where you do not check the
1107 parameter lists of the arguments. */
1108 add_symbol_to_list (sym, &local_list);
1109 }
1110
1111 /* If type was read in earlier, don't bother with modifying
1112 the type struct */
1113 if (!record_args)
1114 goto finish;
1115
1116 /* Note how many parameters we found. */
1117 TYPE_NFIELDS (type) = nsyms;
1118 TYPE_FIELDS (type) = (struct field *)
1119 obstack_alloc (&objfile->type_obstack,
1120 sizeof (struct field) * nsyms);
1121
1122 /* Find the symbols for the parameters and
1123 use them to fill parameter-type information into the function-type.
1124 The parameter symbols can be found in the local_list that we just put them on. */
1125 /* Note that we preserve the order of the parameters, so
1126 that in something like "enum {FOO, LAST_THING=FOO}" we print
1127 FOO, not LAST_THING. */
1128
1129 /* get the parameters types from the local list not the global list
1130 so that the type can be correctly constructed for functions which
1131 have function as parameters
1132 */
1133 for (syms = local_list, n = 0; syms; syms = syms->next)
1134 {
1135 int j = 0;
1136 for (j = 0; j < syms->nsyms; j++, n++)
1137 {
1138 struct symbol *xsym = syms->symbol[j];
1139 TYPE_FIELD_NAME (type, n) = SYMBOL_NAME (xsym);
1140 TYPE_FIELD_TYPE (type, n) = SYMBOL_TYPE (xsym);
1141 TYPE_FIELD_BITPOS (type, n) = n;
1142 TYPE_FIELD_BITSIZE (type, n) = 0;
1143 }
1144 }
1145
1146 /* Mark it as having been processed */
1147 TYPE_FLAGS (type) &= ~(TYPE_FLAG_INCOMPLETE);
1148
1149 /* Check whether we need to fix-up a class type with this function's type */
1150 if (fixup_class && (fixup_method == type))
1151 {
1152 fixup_class_method_type (fixup_class, fixup_method, objfile);
1153 fixup_class = NULL;
1154 fixup_method = NULL;
1155 }
1156
1157 /* Set the param list of this level of the context stack
1158 to our local list. Do this only if this function was
1159 called for creating a new block, and not if it was called
1160 simply to get the function type. This prevents recursive
1161 invocations from trashing param_symbols. */
1162 finish:
1163 if (newblock)
1164 param_symbols = local_list;
1165
1166 return type;
1167 }
1168
1169
1170
1171 /* A file-level variable which keeps track of the current-template
1172 * being processed. Set in hpread_read_struct_type() while processing
1173 * a template type. Referred to in hpread_get_nth_templ_arg().
1174 * Yes, this is a kludge, but it arises from the kludge that already
1175 * exists in symtab.h, namely the fact that they encode
1176 * "template argument n" with fundamental type FT_TEMPLATE_ARG and
1177 * bitlength n. This means that deep in processing fundamental types
1178 * I need to ask the question "what template am I in the middle of?".
1179 * The alternative to stuffing a global would be to pass an argument
1180 * down the chain of calls just for this purpose.
1181 *
1182 * There may be problems handling nested templates... tough.
1183 */
1184 static struct type *current_template = NULL;
1185
1186 /* Read in and internalize a structure definition.
1187 * This same routine is called for struct, union, and class types.
1188 * Also called for templates, since they build a very similar
1189 * type entry as for class types.
1190 */
1191
1192 static struct type *
1193 hpread_read_struct_type (dnttpointer hp_type, union dnttentry *dn_bufp,
1194 struct objfile *objfile)
1195 {
1196 /* The data members get linked together into a list of struct nextfield's */
1197 struct nextfield
1198 {
1199 struct nextfield *next;
1200 struct field field;
1201 unsigned char attributes; /* store visibility and virtuality info */
1202 #define ATTR_VIRTUAL 1
1203 #define ATTR_PRIVATE 2
1204 #define ATTR_PROTECT 3
1205 };
1206
1207
1208 /* The methods get linked together into a list of struct next_fn_field's */
1209 struct next_fn_field
1210 {
1211 struct next_fn_field *next;
1212 struct fn_fieldlist field;
1213 struct fn_field fn_field;
1214 int num_fn_fields;
1215 };
1216
1217 /* The template args get linked together into a list of struct next_template's */
1218 struct next_template
1219 {
1220 struct next_template *next;
1221 struct template_arg arg;
1222 };
1223
1224 /* The template instantiations get linked together into a list of these... */
1225 struct next_instantiation
1226 {
1227 struct next_instantiation *next;
1228 struct type *t;
1229 };
1230
1231 struct type *type;
1232 struct type *baseclass;
1233 struct type *memtype;
1234 struct nextfield *list = 0, *tmp_list = 0;
1235 struct next_fn_field *fn_list = 0;
1236 struct next_fn_field *fn_p;
1237 struct next_template *t_new, *t_list = 0;
1238 struct nextfield *new;
1239 struct next_fn_field *fn_new;
1240 struct next_instantiation *i_new, *i_list = 0;
1241 int n, nfields = 0, n_fn_fields = 0, n_fn_fields_total = 0;
1242 int n_base_classes = 0, n_templ_args = 0;
1243 int ninstantiations = 0;
1244 dnttpointer field, fn_field, parent;
1245 union dnttentry *fieldp, *fn_fieldp, *parentp;
1246 int i;
1247 int static_member = 0;
1248 int const_member = 0;
1249 int volatile_member = 0;
1250 unsigned long vtbl_offset;
1251 int need_bitvectors = 0;
1252 char *method_name = NULL;
1253 char *method_alias = NULL;
1254
1255
1256 /* Is it something we've already dealt with? */
1257 type = hpread_alloc_type (hp_type, objfile);
1258 if ((TYPE_CODE (type) == TYPE_CODE_STRUCT) ||
1259 (TYPE_CODE (type) == TYPE_CODE_UNION) ||
1260 (TYPE_CODE (type) == TYPE_CODE_CLASS) ||
1261 (TYPE_CODE (type) == TYPE_CODE_TEMPLATE))
1262 return type;
1263
1264 /* Get the basic type correct. */
1265 if (dn_bufp->dblock.kind == DNTT_TYPE_STRUCT)
1266 {
1267 TYPE_CODE (type) = TYPE_CODE_STRUCT;
1268 TYPE_LENGTH (type) = dn_bufp->dstruct.bitlength / 8;
1269 }
1270 else if (dn_bufp->dblock.kind == DNTT_TYPE_UNION)
1271 {
1272 TYPE_CODE (type) = TYPE_CODE_UNION;
1273 TYPE_LENGTH (type) = dn_bufp->dunion.bitlength / 8;
1274 }
1275 else if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS)
1276 {
1277 TYPE_CODE (type) = TYPE_CODE_CLASS;
1278 TYPE_LENGTH (type) = dn_bufp->dclass.bitlength / 8;
1279
1280 /* Overrides the TYPE_CPLUS_SPECIFIC(type) with allocated memory
1281 * rather than &cplus_struct_default.
1282 */
1283 allocate_cplus_struct_type (type);
1284
1285 /* Fill in declared-type.
1286 * (The C++ compiler will emit TYPE_CODE_CLASS
1287 * for all 3 of "class", "struct"
1288 * "union", and we have to look at the "class_decl" field if we
1289 * want to know how it was really declared)
1290 */
1291 /* (0==class, 1==union, 2==struct) */
1292 TYPE_DECLARED_TYPE (type) = dn_bufp->dclass.class_decl;
1293 }
1294 else if (dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE)
1295 {
1296 /* Get the basic type correct. */
1297 TYPE_CODE (type) = TYPE_CODE_TEMPLATE;
1298 allocate_cplus_struct_type (type);
1299 TYPE_DECLARED_TYPE (type) = DECLARED_TYPE_TEMPLATE;
1300 }
1301 else
1302 return type;
1303
1304
1305 TYPE_FLAGS (type) &= ~TYPE_FLAG_STUB;
1306
1307 /* For classes, read the parent list.
1308 * Question (RT): Do we need to do this for templates also?
1309 */
1310 if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS)
1311 {
1312
1313 /* First read the parent-list (classes from which we derive fields) */
1314 parent = dn_bufp->dclass.parentlist;
1315 while (parent.word && parent.word != DNTTNIL)
1316 {
1317 parentp = hpread_get_lntt (parent.dnttp.index, objfile);
1318
1319 /* "parentp" should point to a DNTT_TYPE_INHERITANCE record */
1320
1321 /* Get space to record the next field/data-member. */
1322 new = (struct nextfield *) alloca (sizeof (struct nextfield));
1323 new->next = list;
1324 list = new;
1325
1326 FIELD_BITSIZE (list->field) = 0;
1327
1328 /* The "classname" field is actually a DNTT pointer to the base class */
1329 baseclass = hpread_type_lookup (parentp->dinheritance.classname,
1330 objfile);
1331 FIELD_TYPE (list->field) = baseclass;
1332
1333 list->field.name = type_name_no_tag (FIELD_TYPE (list->field));
1334
1335 list->attributes = 0;
1336
1337 /* Check for virtuality of base, and set the
1338 * offset of the base subobject within the object.
1339 * (Offset set to -1 for virtual bases (for now).)
1340 */
1341 if (parentp->dinheritance.Virtual)
1342 {
1343 B_SET (&(list->attributes), ATTR_VIRTUAL);
1344 parentp->dinheritance.offset = -1;
1345 }
1346 else
1347 FIELD_BITPOS (list->field) = parentp->dinheritance.offset;
1348
1349 /* Check visibility */
1350 switch (parentp->dinheritance.visibility)
1351 {
1352 case 1:
1353 B_SET (&(list->attributes), ATTR_PROTECT);
1354 break;
1355 case 2:
1356 B_SET (&(list->attributes), ATTR_PRIVATE);
1357 break;
1358 }
1359
1360 n_base_classes++;
1361 nfields++;
1362
1363 parent = parentp->dinheritance.next;
1364 }
1365 }
1366
1367 /* For templates, read the template argument list.
1368 * This must be done before processing the member list, because
1369 * the member list may refer back to this. E.g.:
1370 * template <class T1, class T2> class q2 {
1371 * public:
1372 * T1 a;
1373 * T2 b;
1374 * };
1375 * We need to read the argument list "T1", "T2" first.
1376 */
1377 if (dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE)
1378 {
1379 /* Kludge alert: This stuffs a global "current_template" which
1380 * is referred to by hpread_get_nth_templ_arg(). The global
1381 * is cleared at the end of this routine.
1382 */
1383 current_template = type;
1384
1385 /* Read in the argument list */
1386 field = dn_bufp->dtemplate.arglist;
1387 while (field.word && field.word != DNTTNIL)
1388 {
1389 /* Get this template argument */
1390 fieldp = hpread_get_lntt (field.dnttp.index, objfile);
1391 if (fieldp->dblock.kind != DNTT_TYPE_TEMPLATE_ARG)
1392 {
1393 warning ("Invalid debug info: Template argument entry is of wrong kind");
1394 break;
1395 }
1396 /* Bump the count */
1397 n_templ_args++;
1398 /* Allocate and fill in a struct next_template */
1399 t_new = (struct next_template *) alloca (sizeof (struct next_template));
1400 t_new->next = t_list;
1401 t_list = t_new;
1402 t_list->arg.name = VT (objfile) + fieldp->dtempl_arg.name;
1403 t_list->arg.type = hpread_read_templ_arg_type (field, fieldp,
1404 objfile, t_list->arg.name);
1405 /* Walk to the next template argument */
1406 field = fieldp->dtempl_arg.nextarg;
1407 }
1408 }
1409
1410 TYPE_NTEMPLATE_ARGS (type) = n_templ_args;
1411
1412 if (n_templ_args > 0)
1413 TYPE_TEMPLATE_ARGS (type) = (struct template_arg *)
1414 obstack_alloc (&objfile->type_obstack, sizeof (struct template_arg) * n_templ_args);
1415 for (n = n_templ_args; t_list; t_list = t_list->next)
1416 {
1417 n -= 1;
1418 TYPE_TEMPLATE_ARG (type, n) = t_list->arg;
1419 }
1420
1421 /* Next read in and internalize all the fields/members. */
1422 if (dn_bufp->dblock.kind == DNTT_TYPE_STRUCT)
1423 field = dn_bufp->dstruct.firstfield;
1424 else if (dn_bufp->dblock.kind == DNTT_TYPE_UNION)
1425 field = dn_bufp->dunion.firstfield;
1426 else if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS)
1427 field = dn_bufp->dclass.memberlist;
1428 else if (dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE)
1429 field = dn_bufp->dtemplate.memberlist;
1430 else
1431 field.word = DNTTNIL;
1432
1433 while (field.word && field.word != DNTTNIL)
1434 {
1435 fieldp = hpread_get_lntt (field.dnttp.index, objfile);
1436
1437 /* At this point "fieldp" may point to either a DNTT_TYPE_FIELD
1438 * or a DNTT_TYPE_GENFIELD record.
1439 */
1440 vtbl_offset = 0;
1441 static_member = 0;
1442 const_member = 0;
1443 volatile_member = 0;
1444
1445 if (fieldp->dblock.kind == DNTT_TYPE_GENFIELD)
1446 {
1447
1448 /* The type will be GENFIELD if the field is a method or
1449 * a static member (or some other cases -- see below)
1450 */
1451
1452 /* Follow a link to get to the record for the field. */
1453 fn_field = fieldp->dgenfield.field;
1454 fn_fieldp = hpread_get_lntt (fn_field.dnttp.index, objfile);
1455
1456 /* Virtual funcs are indicated by a VFUNC which points to the
1457 * real entry
1458 */
1459 if (fn_fieldp->dblock.kind == DNTT_TYPE_VFUNC)
1460 {
1461 vtbl_offset = fn_fieldp->dvfunc.vtbl_offset;
1462 fn_field = fn_fieldp->dvfunc.funcptr;
1463 fn_fieldp = hpread_get_lntt (fn_field.dnttp.index, objfile);
1464 }
1465
1466 /* A function's entry may be preceded by a modifier which
1467 * labels it static/constant/volatile.
1468 */
1469 if (fn_fieldp->dblock.kind == DNTT_TYPE_MODIFIER)
1470 {
1471 static_member = fn_fieldp->dmodifier.m_static;
1472 const_member = fn_fieldp->dmodifier.m_const;
1473 volatile_member = fn_fieldp->dmodifier.m_volatile;
1474 fn_field = fn_fieldp->dmodifier.type;
1475 fn_fieldp = hpread_get_lntt (fn_field.dnttp.index, objfile);
1476 }
1477
1478 /* Check whether we have a method */
1479 if ((fn_fieldp->dblock.kind == DNTT_TYPE_MEMFUNC) ||
1480 (fn_fieldp->dblock.kind == DNTT_TYPE_FUNCTION) ||
1481 (fn_fieldp->dblock.kind == DNTT_TYPE_DOC_MEMFUNC) ||
1482 (fn_fieldp->dblock.kind == DNTT_TYPE_DOC_FUNCTION))
1483 {
1484 /* Method found */
1485
1486 short ix = 0;
1487
1488 /* Look up function type of method */
1489 memtype = hpread_type_lookup (fn_field, objfile);
1490
1491 /* Methods can be seen before classes in the SOM records.
1492 If we are processing this class because it's a parameter of a
1493 method, at this point the method's type is actually incomplete;
1494 we'll have to fix it up later; mark the class for this. */
1495
1496 if (TYPE_INCOMPLETE (memtype))
1497 {
1498 TYPE_FLAGS (type) |= TYPE_FLAG_INCOMPLETE;
1499 if (fixup_class)
1500 warning ("Two classes to fix up for method?? Type information may be incorrect for some classes.");
1501 if (fixup_method)
1502 warning ("Two methods to be fixed up at once?? Type information may be incorrect for some classes.");
1503 fixup_class = type; /* remember this class has to be fixed up */
1504 fixup_method = memtype; /* remember the method type to be used in fixup */
1505 }
1506
1507 /* HP aCC generates operator names without the "operator" keyword, and
1508 generates null strings as names for operators that are
1509 user-defined type conversions to basic types (e.g. operator int ()).
1510 So try to reconstruct name as best as possible. */
1511
1512 method_name = (char *) (VT (objfile) + fn_fieldp->dfunc.name);
1513 method_alias = (char *) (VT (objfile) + fn_fieldp->dfunc.alias);
1514
1515 if (!method_name || /* no name */
1516 !*method_name || /* or null name */
1517 cplus_mangle_opname (method_name, DMGL_ANSI)) /* or name is an operator like "<" */
1518 {
1519 char *tmp_name = cplus_demangle (method_alias, DMGL_ANSI);
1520 char *op_string = strstr (tmp_name, "operator");
1521 method_name = xmalloc (strlen (op_string) + 1); /* don't overwrite VT! */
1522 strcpy (method_name, op_string);
1523 }
1524
1525 /* First check if a method of the same name has already been seen. */
1526 fn_p = fn_list;
1527 while (fn_p)
1528 {
1529 if (STREQ (fn_p->field.name, method_name))
1530 break;
1531 fn_p = fn_p->next;
1532 }
1533
1534 /* If no such method was found, allocate a new entry in the list */
1535 if (!fn_p)
1536 {
1537 /* Get space to record this member function */
1538 /* Note: alloca used; this will disappear on routine exit */
1539 fn_new = (struct next_fn_field *) alloca (sizeof (struct next_fn_field));
1540 fn_new->next = fn_list;
1541 fn_list = fn_new;
1542
1543 /* Fill in the fields of the struct nextfield */
1544
1545 /* Record the (unmangled) method name */
1546 fn_list->field.name = method_name;
1547 /* Initial space for overloaded methods */
1548 /* Note: xmalloc is used; this will persist after this routine exits */
1549 fn_list->field.fn_fields = (struct fn_field *) xmalloc (5 * (sizeof (struct fn_field)));
1550 fn_list->field.length = 1; /* Init # of overloaded instances */
1551 fn_list->num_fn_fields = 5; /* # of entries for which space allocated */
1552 fn_p = fn_list;
1553 ix = 0; /* array index for fn_field */
1554 /* Bump the total count of the distinctly named methods */
1555 n_fn_fields++;
1556 }
1557 else
1558 /* Another overloaded instance of an already seen method name */
1559 {
1560 if (++(fn_p->field.length) > fn_p->num_fn_fields)
1561 {
1562 /* Increase space allocated for overloaded instances */
1563 fn_p->field.fn_fields
1564 = (struct fn_field *) xrealloc (fn_p->field.fn_fields,
1565 (fn_p->num_fn_fields + 5) * sizeof (struct fn_field));
1566 fn_p->num_fn_fields += 5;
1567 }
1568 ix = fn_p->field.length - 1; /* array index for fn_field */
1569 }
1570
1571 /* "physname" is intended to be the name of this overloaded instance. */
1572 if ((fn_fieldp->dfunc.language == HP_LANGUAGE_CPLUSPLUS) &&
1573 method_alias &&
1574 *method_alias) /* not a null string */
1575 fn_p->field.fn_fields[ix].physname = method_alias;
1576 else
1577 fn_p->field.fn_fields[ix].physname = method_name;
1578 /* What's expected here is the function type */
1579 /* But mark it as NULL if the method was incompletely processed
1580 We'll fix this up later when the method is fully processed */
1581 if (TYPE_INCOMPLETE (memtype))
1582 {
1583 fn_p->field.fn_fields[ix].type = NULL;
1584 fn_p->field.fn_fields[ix].args = NULL;
1585 }
1586 else
1587 {
1588 fn_p->field.fn_fields[ix].type = memtype;
1589
1590 /* The argument list */
1591 fn_p->field.fn_fields[ix].type->type_specific.arg_types =
1592 (struct type **) obstack_alloc (&objfile->type_obstack,
1593 sizeof (struct type *) * (memtype->nfields + 1));
1594 for (i = 0; i < memtype->nfields; i++)
1595 fn_p->field.fn_fields[ix].type->type_specific.arg_types[i] = memtype->fields[i].type;
1596 /* void termination */
1597 fn_p->field.fn_fields[ix].type->type_specific.arg_types[memtype->nfields] = builtin_type_void;
1598
1599 /* pai: It's not clear why this args field has to be set. Perhaps
1600 * it should be eliminated entirely. */
1601 fn_p->field.fn_fields[ix].args =
1602 (struct type **) obstack_alloc (&objfile->type_obstack,
1603 sizeof (struct type *) * (memtype->nfields + 1));
1604 for (i = 0; i < memtype->nfields; i++)
1605 fn_p->field.fn_fields[ix].args[i] = memtype->fields[i].type;
1606 /* null-terminated, unlike arg_types above e */
1607 fn_p->field.fn_fields[ix].args[memtype->nfields] = NULL;
1608 }
1609 /* For virtual functions, fill in the voffset field with the
1610 * virtual table offset. (This is just copied over from the
1611 * SOM record; not sure if it is what GDB expects here...).
1612 * But if the function is a static method, set it to 1.
1613 *
1614 * Note that we have to add 1 because 1 indicates a static
1615 * method, and 0 indicates a non-static, non-virtual method */
1616
1617 if (static_member)
1618 fn_p->field.fn_fields[ix].voffset = VOFFSET_STATIC;
1619 else
1620 fn_p->field.fn_fields[ix].voffset = vtbl_offset ? vtbl_offset + 1 : 0;
1621
1622 /* Also fill in the fcontext field with the current
1623 * class. (The latter isn't quite right: should be the baseclass
1624 * that defines the virtual function... Note we do have
1625 * a variable "baseclass" that we could stuff into the fcontext
1626 * field, but "baseclass" isn't necessarily right either,
1627 * since the virtual function could have been defined more
1628 * than one level up).
1629 */
1630
1631 if (vtbl_offset != 0)
1632 fn_p->field.fn_fields[ix].fcontext = type;
1633 else
1634 fn_p->field.fn_fields[ix].fcontext = NULL;
1635
1636 /* Other random fields pertaining to this method */
1637 fn_p->field.fn_fields[ix].is_const = const_member;
1638 fn_p->field.fn_fields[ix].is_volatile = volatile_member; /* ?? */
1639 switch (fieldp->dgenfield.visibility)
1640 {
1641 case 1:
1642 fn_p->field.fn_fields[ix].is_protected = 1;
1643 fn_p->field.fn_fields[ix].is_private = 0;
1644 break;
1645 case 2:
1646 fn_p->field.fn_fields[ix].is_protected = 0;
1647 fn_p->field.fn_fields[ix].is_private = 1;
1648 break;
1649 default: /* public */
1650 fn_p->field.fn_fields[ix].is_protected = 0;
1651 fn_p->field.fn_fields[ix].is_private = 0;
1652 }
1653 fn_p->field.fn_fields[ix].is_stub = 0;
1654
1655 /* HP aCC emits both MEMFUNC and FUNCTION entries for a method;
1656 if the class points to the FUNCTION, there is usually separate
1657 code for the method; but if we have a MEMFUNC, the method has
1658 been inlined (and there is usually no FUNCTION entry)
1659 FIXME Not sure if this test is accurate. pai/1997-08-22 */
1660 if ((fn_fieldp->dblock.kind == DNTT_TYPE_MEMFUNC) ||
1661 (fn_fieldp->dblock.kind == DNTT_TYPE_DOC_MEMFUNC))
1662 fn_p->field.fn_fields[ix].is_inlined = 1;
1663 else
1664 fn_p->field.fn_fields[ix].is_inlined = 0;
1665
1666 fn_p->field.fn_fields[ix].dummy = 0;
1667
1668 /* Bump the total count of the member functions */
1669 n_fn_fields_total++;
1670
1671 }
1672 else if (fn_fieldp->dblock.kind == DNTT_TYPE_SVAR)
1673 {
1674 /* This case is for static data members of classes */
1675
1676 /* pai:: FIXME -- check that "staticmem" bit is set */
1677
1678 /* Get space to record this static member */
1679 new = (struct nextfield *) alloca (sizeof (struct nextfield));
1680 new->next = list;
1681 list = new;
1682
1683 list->field.name = VT (objfile) + fn_fieldp->dsvar.name;
1684 FIELD_BITSIZE (list->field) = -1; /* indicates static member */
1685 SET_FIELD_PHYSNAME (list->field, 0); /* initialize to empty */
1686 memtype = hpread_type_lookup (fn_fieldp->dsvar.type, objfile);
1687
1688 FIELD_TYPE (list->field) = memtype;
1689 list->attributes = 0;
1690 switch (fieldp->dgenfield.visibility)
1691 {
1692 case 1:
1693 B_SET (&(list->attributes), ATTR_PROTECT);
1694 break;
1695 case 2:
1696 B_SET (&(list->attributes), ATTR_PRIVATE);
1697 break;
1698 }
1699 nfields++;
1700 }
1701
1702 else if (fn_fieldp->dblock.kind == DNTT_TYPE_FIELD)
1703 {
1704 /* FIELDs follow GENFIELDs for fields of anonymous unions.
1705 Code below is replicated from the case for FIELDs further
1706 below, except that fieldp is replaced by fn_fieldp */
1707 if (!fn_fieldp->dfield.a_union)
1708 warning ("Debug info inconsistent: FIELD of anonymous union doesn't have a_union bit set");
1709 /* Get space to record the next field/data-member. */
1710 new = (struct nextfield *) alloca (sizeof (struct nextfield));
1711 new->next = list;
1712 list = new;
1713
1714 list->field.name = VT (objfile) + fn_fieldp->dfield.name;
1715 FIELD_BITPOS (list->field) = fn_fieldp->dfield.bitoffset;
1716 if (fn_fieldp->dfield.bitlength % 8)
1717 list->field.bitsize = fn_fieldp->dfield.bitlength;
1718 else
1719 list->field.bitsize = 0;
1720
1721 memtype = hpread_type_lookup (fn_fieldp->dfield.type, objfile);
1722 list->field.type = memtype;
1723 list->attributes = 0;
1724 switch (fn_fieldp->dfield.visibility)
1725 {
1726 case 1:
1727 B_SET (&(list->attributes), ATTR_PROTECT);
1728 break;
1729 case 2:
1730 B_SET (&(list->attributes), ATTR_PRIVATE);
1731 break;
1732 }
1733 nfields++;
1734 }
1735 else if (fn_fieldp->dblock.kind == DNTT_TYPE_SVAR)
1736 {
1737 /* Field of anonymous union; union is not inside a class */
1738 if (!fn_fieldp->dsvar.a_union)
1739 warning ("Debug info inconsistent: SVAR field in anonymous union doesn't have a_union bit set");
1740 /* Get space to record the next field/data-member. */
1741 new = (struct nextfield *) alloca (sizeof (struct nextfield));
1742 new->next = list;
1743 list = new;
1744
1745 list->field.name = VT (objfile) + fn_fieldp->dsvar.name;
1746 FIELD_BITPOS (list->field) = 0; /* FIXME is this always true? */
1747 FIELD_BITSIZE (list->field) = 0; /* use length from type */
1748 memtype = hpread_type_lookup (fn_fieldp->dsvar.type, objfile);
1749 list->field.type = memtype;
1750 list->attributes = 0;
1751 /* No info to set visibility -- always public */
1752 nfields++;
1753 }
1754 else if (fn_fieldp->dblock.kind == DNTT_TYPE_DVAR)
1755 {
1756 /* Field of anonymous union; union is not inside a class */
1757 if (!fn_fieldp->ddvar.a_union)
1758 warning ("Debug info inconsistent: DVAR field in anonymous union doesn't have a_union bit set");
1759 /* Get space to record the next field/data-member. */
1760 new = (struct nextfield *) alloca (sizeof (struct nextfield));
1761 new->next = list;
1762 list = new;
1763
1764 list->field.name = VT (objfile) + fn_fieldp->ddvar.name;
1765 FIELD_BITPOS (list->field) = 0; /* FIXME is this always true? */
1766 FIELD_BITSIZE (list->field) = 0; /* use length from type */
1767 memtype = hpread_type_lookup (fn_fieldp->ddvar.type, objfile);
1768 list->field.type = memtype;
1769 list->attributes = 0;
1770 /* No info to set visibility -- always public */
1771 nfields++;
1772 }
1773 else
1774 { /* Not a method, nor a static data member, nor an anon union field */
1775
1776 /* This case is for miscellaneous type entries (local enums,
1777 local function templates, etc.) that can be present
1778 inside a class. */
1779
1780 /* Enums -- will be handled by other code that takes care
1781 of DNTT_TYPE_ENUM; here we see only DNTT_TYPE_MEMENUM so
1782 it's not clear we could have handled them here at all. */
1783 /* FUNC_TEMPLATE: is handled by other code (??). */
1784 /* MEMACCESS: modified access for inherited member. Not
1785 sure what to do with this, ignoriing it at present. */
1786
1787 /* What other entries can appear following a GENFIELD which
1788 we do not handle above? (MODIFIER, VFUNC handled above.) */
1789
1790 if ((fn_fieldp->dblock.kind != DNTT_TYPE_MEMACCESS) &&
1791 (fn_fieldp->dblock.kind != DNTT_TYPE_MEMENUM) &&
1792 (fn_fieldp->dblock.kind != DNTT_TYPE_FUNC_TEMPLATE))
1793 warning ("Internal error: Unexpected debug record kind %d found following DNTT_GENFIELD",
1794 fn_fieldp->dblock.kind);
1795 }
1796 /* walk to the next FIELD or GENFIELD */
1797 field = fieldp->dgenfield.nextfield;
1798
1799 }
1800 else if (fieldp->dblock.kind == DNTT_TYPE_FIELD)
1801 {
1802
1803 /* Ordinary structure/union/class field */
1804 struct type *anon_union_type;
1805
1806 /* Get space to record the next field/data-member. */
1807 new = (struct nextfield *) alloca (sizeof (struct nextfield));
1808 new->next = list;
1809 list = new;
1810
1811 list->field.name = VT (objfile) + fieldp->dfield.name;
1812
1813
1814 /* A FIELD by itself (without a GENFIELD) can also be a static member */
1815 if (fieldp->dfield.staticmem)
1816 {
1817 FIELD_BITPOS (list->field) = -1;
1818 FIELD_BITSIZE (list->field) = 0;
1819 }
1820 else
1821 /* Non-static data member */
1822 {
1823 FIELD_BITPOS (list->field) = fieldp->dfield.bitoffset;
1824 if (fieldp->dfield.bitlength % 8)
1825 FIELD_BITSIZE (list->field) = fieldp->dfield.bitlength;
1826 else
1827 FIELD_BITSIZE (list->field) = 0;
1828 }
1829
1830 memtype = hpread_type_lookup (fieldp->dfield.type, objfile);
1831 FIELD_TYPE (list->field) = memtype;
1832 list->attributes = 0;
1833 switch (fieldp->dfield.visibility)
1834 {
1835 case 1:
1836 B_SET (&(list->attributes), ATTR_PROTECT);
1837 break;
1838 case 2:
1839 B_SET (&(list->attributes), ATTR_PRIVATE);
1840 break;
1841 }
1842 nfields++;
1843
1844
1845 /* Note 1: First, we have to check if the current field is an anonymous
1846 union. If it is, then *its* fields are threaded along in the
1847 nextfield chain. :-( This was supposed to help debuggers, but is
1848 really just a nuisance since we deal with anonymous unions anyway by
1849 checking that the name is null. So anyway, we skip over the fields
1850 of the anonymous union. pai/1997-08-22 */
1851 /* Note 2: In addition, the bitoffsets for the fields of the anon union
1852 are relative to the enclosing struct, *NOT* relative to the anon
1853 union! This is an even bigger nuisance -- we have to go in and munge
1854 the anon union's type information appropriately. pai/1997-08-22 */
1855
1856 /* Both tasks noted above are done by a separate function. This takes us
1857 to the next FIELD or GENFIELD, skipping anon unions, and recursively
1858 processing intermediate types. */
1859 field = hpread_get_next_skip_over_anon_unions (1, field, &fieldp, objfile);
1860
1861 }
1862 else
1863 {
1864 /* neither field nor genfield ?? is this possible?? */
1865 /* pai:: FIXME walk to the next -- how? */
1866 warning ("Internal error: unexpected DNTT kind %d encountered as field of struct");
1867 warning ("Skipping remaining fields of struct");
1868 break; /* get out of loop of fields */
1869 }
1870 }
1871
1872 /* If it's a template, read in the instantiation list */
1873 if (dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE)
1874 {
1875 ninstantiations = 0;
1876 field = dn_bufp->dtemplate.expansions;
1877 while (field.word && field.word != DNTTNIL)
1878 {
1879 fieldp = hpread_get_lntt (field.dnttp.index, objfile);
1880
1881 /* The expansions or nextexp should point to a tagdef */
1882 if (fieldp->dblock.kind != DNTT_TYPE_TAGDEF)
1883 break;
1884
1885 i_new = (struct next_instantiation *) alloca (sizeof (struct next_instantiation));
1886 i_new->next = i_list;
1887 i_list = i_new;
1888 i_list->t = hpread_type_lookup (field, objfile);
1889 ninstantiations++;
1890
1891 /* And the "type" field of that should point to a class */
1892 field = fieldp->dtag.type;
1893 fieldp = hpread_get_lntt (field.dnttp.index, objfile);
1894 if (fieldp->dblock.kind != DNTT_TYPE_CLASS)
1895 break;
1896
1897 /* Get the next expansion */
1898 field = fieldp->dclass.nextexp;
1899 }
1900 }
1901 TYPE_NINSTANTIATIONS (type) = ninstantiations;
1902 if (ninstantiations > 0)
1903 TYPE_INSTANTIATIONS (type) = (struct type **)
1904 obstack_alloc (&objfile->type_obstack, sizeof (struct type *) * ninstantiations);
1905 for (n = ninstantiations; i_list; i_list = i_list->next)
1906 {
1907 n -= 1;
1908 TYPE_INSTANTIATION (type, n) = i_list->t;
1909 }
1910
1911
1912 /* Copy the field-list to GDB's symbol table */
1913 TYPE_NFIELDS (type) = nfields;
1914 TYPE_N_BASECLASSES (type) = n_base_classes;
1915 TYPE_FIELDS (type) = (struct field *)
1916 obstack_alloc (&objfile->type_obstack, sizeof (struct field) * nfields);
1917 /* Copy the saved-up fields into the field vector. */
1918 for (n = nfields, tmp_list = list; tmp_list; tmp_list = tmp_list->next)
1919 {
1920 n -= 1;
1921 TYPE_FIELD (type, n) = tmp_list->field;
1922 }
1923
1924 /* Copy the "function-field-list" (i.e., the list of member
1925 * functions in the class) to GDB's symbol table
1926 */
1927 TYPE_NFN_FIELDS (type) = n_fn_fields;
1928 TYPE_NFN_FIELDS_TOTAL (type) = n_fn_fields_total;
1929 TYPE_FN_FIELDLISTS (type) = (struct fn_fieldlist *)
1930 obstack_alloc (&objfile->type_obstack, sizeof (struct fn_fieldlist) * n_fn_fields);
1931 for (n = n_fn_fields; fn_list; fn_list = fn_list->next)
1932 {
1933 n -= 1;
1934 TYPE_FN_FIELDLIST (type, n) = fn_list->field;
1935 }
1936
1937 /* pai:: FIXME -- perhaps each bitvector should be created individually */
1938 for (n = nfields, tmp_list = list; tmp_list; tmp_list = tmp_list->next)
1939 {
1940 n -= 1;
1941 if (tmp_list->attributes)
1942 {
1943 need_bitvectors = 1;
1944 break;
1945 }
1946 }
1947
1948 if (need_bitvectors)
1949 {
1950 /* pai:: this step probably redundant */
1951 ALLOCATE_CPLUS_STRUCT_TYPE (type);
1952
1953 TYPE_FIELD_VIRTUAL_BITS (type) =
1954 (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
1955 B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type), nfields);
1956
1957 TYPE_FIELD_PRIVATE_BITS (type) =
1958 (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
1959 B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type), nfields);
1960
1961 TYPE_FIELD_PROTECTED_BITS (type) =
1962 (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
1963 B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type), nfields);
1964
1965 /* this field vector isn't actually used with HP aCC */
1966 TYPE_FIELD_IGNORE_BITS (type) =
1967 (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
1968 B_CLRALL (TYPE_FIELD_IGNORE_BITS (type), nfields);
1969
1970 while (nfields-- > 0)
1971 {
1972 if (B_TST (&(list->attributes), ATTR_VIRTUAL))
1973 SET_TYPE_FIELD_VIRTUAL (type, nfields);
1974 if (B_TST (&(list->attributes), ATTR_PRIVATE))
1975 SET_TYPE_FIELD_PRIVATE (type, nfields);
1976 if (B_TST (&(list->attributes), ATTR_PROTECT))
1977 SET_TYPE_FIELD_PROTECTED (type, nfields);
1978
1979 list = list->next;
1980 }
1981 }
1982 else
1983 {
1984 TYPE_FIELD_VIRTUAL_BITS (type) = NULL;
1985 TYPE_FIELD_PROTECTED_BITS (type) = NULL;
1986 TYPE_FIELD_PRIVATE_BITS (type) = NULL;
1987 }
1988
1989 if (has_vtable (type))
1990 {
1991 /* Allocate space for class runtime information */
1992 TYPE_RUNTIME_PTR (type) = (struct runtime_info *) xmalloc (sizeof (struct runtime_info));
1993 /* Set flag for vtable */
1994 TYPE_VTABLE (type) = 1;
1995 /* The first non-virtual base class with a vtable. */
1996 TYPE_PRIMARY_BASE (type) = primary_base_class (type);
1997 /* The virtual base list. */
1998 TYPE_VIRTUAL_BASE_LIST (type) = virtual_base_list (type);
1999 }
2000 else
2001 TYPE_RUNTIME_PTR (type) = NULL;
2002
2003 /* If this is a local type (C++ - declared inside a function), record file name & line # */
2004 if (hpread_get_scope_depth (dn_bufp, objfile, 1 /* no need for real depth */ ))
2005 {
2006 TYPE_LOCALTYPE_PTR (type) = (struct local_type_info *) xmalloc (sizeof (struct local_type_info));
2007 TYPE_LOCALTYPE_FILE (type) = (char *) xmalloc (strlen (current_subfile->name) + 1);
2008 strcpy (TYPE_LOCALTYPE_FILE (type), current_subfile->name);
2009 if (current_subfile->line_vector && (current_subfile->line_vector->nitems > 0))
2010 TYPE_LOCALTYPE_LINE (type) = current_subfile->line_vector->item[current_subfile->line_vector->nitems - 1].line;
2011 else
2012 TYPE_LOCALTYPE_LINE (type) = 0;
2013 }
2014 else
2015 TYPE_LOCALTYPE_PTR (type) = NULL;
2016
2017 /* Clear the global saying what template we are in the middle of processing */
2018 current_template = NULL;
2019
2020 return type;
2021 }
2022
2023 /* Adjust the physnames for each static member of a struct
2024 or class type to be something like "A::x"; then various
2025 other pieces of code that do a lookup_symbol on the phyname
2026 work correctly.
2027 TYPE is a pointer to the struct/class type
2028 NAME is a char * (string) which is the class/struct name
2029 Void return */
2030
2031 static void
2032 fix_static_member_physnames (struct type *type, char *class_name,
2033 struct objfile *objfile)
2034 {
2035 int i;
2036
2037 /* We fix the member names only for classes or structs */
2038 if (TYPE_CODE (type) != TYPE_CODE_STRUCT)
2039 return;
2040
2041 for (i = 0; i < TYPE_NFIELDS (type); i++)
2042 if (TYPE_FIELD_STATIC (type, i))
2043 {
2044 if (TYPE_FIELD_STATIC_PHYSNAME (type, i))
2045 return; /* physnames are already set */
2046
2047 SET_FIELD_PHYSNAME (type->fields[i],
2048 obstack_alloc (&objfile->type_obstack,
2049 strlen (class_name) + strlen (TYPE_FIELD_NAME (type, i)) + 3));
2050 strcpy (TYPE_FIELD_STATIC_PHYSNAME (type, i), class_name);
2051 strcat (TYPE_FIELD_STATIC_PHYSNAME (type, i), "::");
2052 strcat (TYPE_FIELD_STATIC_PHYSNAME (type, i), TYPE_FIELD_NAME (type, i));
2053 }
2054 }
2055
2056 /* Fix-up the type structure for a CLASS so that the type entry
2057 * for a method (previously marked with a null type in hpread_read_struct_type()
2058 * is set correctly to METHOD.
2059 * OBJFILE is as for other such functions.
2060 * Void return. */
2061
2062 static void
2063 fixup_class_method_type (struct type *class, struct type *method,
2064 struct objfile *objfile)
2065 {
2066 int i, j, k;
2067
2068 if (!class || !method || !objfile)
2069 return;
2070
2071 /* Only for types that have methods */
2072 if ((TYPE_CODE (class) != TYPE_CODE_CLASS) &&
2073 (TYPE_CODE (class) != TYPE_CODE_UNION))
2074 return;
2075
2076 /* Loop over all methods and find the one marked with a NULL type */
2077 for (i = 0; i < TYPE_NFN_FIELDS (class); i++)
2078 for (j = 0; j < TYPE_FN_FIELDLIST_LENGTH (class, i); j++)
2079 if (TYPE_FN_FIELD_TYPE (TYPE_FN_FIELDLIST1 (class, i), j) == NULL)
2080 {
2081 /* Set the method type */
2082 TYPE_FN_FIELD_TYPE (TYPE_FN_FIELDLIST1 (class, i), j) = method;
2083 /* The argument list */
2084 (TYPE_FN_FIELD_TYPE (TYPE_FN_FIELDLIST1 (class, i), j))->type_specific.arg_types
2085 = (struct type **) obstack_alloc (&objfile->type_obstack,
2086 sizeof (struct type *) * (method->nfields + 1));
2087 for (k = 0; k < method->nfields; k++)
2088 (TYPE_FN_FIELD_TYPE (TYPE_FN_FIELDLIST1 (class, i), j))->type_specific.arg_types[k] = method->fields[k].type;
2089 /* void termination */
2090 (TYPE_FN_FIELD_TYPE (TYPE_FN_FIELDLIST1 (class, i), j))->type_specific.arg_types[method->nfields] = builtin_type_void;
2091
2092 /* pai: It's not clear why this args field has to be set. Perhaps
2093 * it should be eliminated entirely. */
2094 (TYPE_FN_FIELD (TYPE_FN_FIELDLIST1 (class, i), j)).args
2095 = (struct type **) obstack_alloc (&objfile->type_obstack,
2096 sizeof (struct type *) * (method->nfields + 1));
2097 for (k = 0; k < method->nfields; k++)
2098 (TYPE_FN_FIELD (TYPE_FN_FIELDLIST1 (class, i), j)).args[k] = method->fields[k].type;
2099 /* null-terminated, unlike arg_types above */
2100 (TYPE_FN_FIELD (TYPE_FN_FIELDLIST1 (class, i), j)).args[method->nfields] = NULL;
2101
2102 /* Break out of both loops -- only one method to fix up in a class */
2103 goto finish;
2104 }
2105
2106 finish:
2107 TYPE_FLAGS (class) &= ~TYPE_FLAG_INCOMPLETE;
2108 }
2109
2110
2111 /* If we're in the middle of processing a template, get a pointer
2112 * to the Nth template argument.
2113 * An example may make this clearer:
2114 * template <class T1, class T2> class q2 {
2115 * public:
2116 * T1 a;
2117 * T2 b;
2118 * };
2119 * The type for "a" will be "first template arg" and
2120 * the type for "b" will be "second template arg".
2121 * We need to look these up in order to fill in "a" and "b"'s type.
2122 * This is called from hpread_type_lookup().
2123 */
2124 static struct type *
2125 hpread_get_nth_template_arg (struct objfile *objfile, int n)
2126 {
2127 if (current_template != NULL)
2128 return TYPE_TEMPLATE_ARG (current_template, n).type;
2129 else
2130 return lookup_fundamental_type (objfile, FT_TEMPLATE_ARG);
2131 }
2132
2133 /* Read in and internalize a TEMPL_ARG (template arg) symbol. */
2134
2135 static struct type *
2136 hpread_read_templ_arg_type (dnttpointer hp_type, union dnttentry *dn_bufp,
2137 struct objfile *objfile, char *name)
2138 {
2139 struct type *type;
2140
2141 /* See if it's something we've already deal with. */
2142 type = hpread_alloc_type (hp_type, objfile);
2143 if (TYPE_CODE (type) == TYPE_CODE_TEMPLATE_ARG)
2144 return type;
2145
2146 /* Nope. Fill in the appropriate fields. */
2147 TYPE_CODE (type) = TYPE_CODE_TEMPLATE_ARG;
2148 TYPE_LENGTH (type) = 0;
2149 TYPE_NFIELDS (type) = 0;
2150 TYPE_NAME (type) = name;
2151 return type;
2152 }
2153
2154 /* Read in and internalize a set debug symbol. */
2155
2156 static struct type *
2157 hpread_read_set_type (dnttpointer hp_type, union dnttentry *dn_bufp,
2158 struct objfile *objfile)
2159 {
2160 struct type *type;
2161
2162 /* See if it's something we've already deal with. */
2163 type = hpread_alloc_type (hp_type, objfile);
2164 if (TYPE_CODE (type) == TYPE_CODE_SET)
2165 return type;
2166
2167 /* Nope. Fill in the appropriate fields. */
2168 TYPE_CODE (type) = TYPE_CODE_SET;
2169 TYPE_LENGTH (type) = dn_bufp->dset.bitlength / 8;
2170 TYPE_NFIELDS (type) = 0;
2171 TYPE_TARGET_TYPE (type) = hpread_type_lookup (dn_bufp->dset.subtype,
2172 objfile);
2173 return type;
2174 }
2175
2176 /* Read in and internalize an array debug symbol. */
2177
2178 static struct type *
2179 hpread_read_array_type (dnttpointer hp_type, union dnttentry *dn_bufp,
2180 struct objfile *objfile)
2181 {
2182 struct type *type;
2183
2184 /* Allocate an array type symbol.
2185 * Why no check for already-read here, like in the other
2186 * hpread_read_xxx_type routines? Because it kept us
2187 * from properly determining the size of the array!
2188 */
2189 type = hpread_alloc_type (hp_type, objfile);
2190
2191 TYPE_CODE (type) = TYPE_CODE_ARRAY;
2192
2193 /* Although the hp-symtab.h does not *require* this to be the case,
2194 * GDB is assuming that "arrayisbytes" and "elemisbytes" be consistent.
2195 * I.e., express both array-length and element-length in bits,
2196 * or express both array-length and element-length in bytes.
2197 */
2198 if (!((dn_bufp->darray.arrayisbytes && dn_bufp->darray.elemisbytes) ||
2199 (!dn_bufp->darray.arrayisbytes && !dn_bufp->darray.elemisbytes)))
2200 {
2201 warning ("error in hpread_array_type.\n");
2202 return;
2203 }
2204 else if (dn_bufp->darray.arraylength == 0x7fffffff)
2205 {
2206 /* The HP debug format represents char foo[]; as an array with
2207 * length 0x7fffffff. Internally GDB wants to represent this
2208 * as an array of length zero.
2209 */
2210 TYPE_LENGTH (type) = 0;
2211 }
2212 else if (dn_bufp->darray.arrayisbytes)
2213 TYPE_LENGTH (type) = dn_bufp->darray.arraylength;
2214 else /* arraylength is in bits */
2215 TYPE_LENGTH (type) = dn_bufp->darray.arraylength / 8;
2216
2217 TYPE_TARGET_TYPE (type) = hpread_type_lookup (dn_bufp->darray.elemtype,
2218 objfile);
2219
2220 /* The one "field" is used to store the subscript type */
2221 /* Since C and C++ multi-dimensional arrays are simply represented
2222 * as: array of array of ..., we only need one subscript-type
2223 * per array. This subscript type is typically a subrange of integer.
2224 * If this gets extended to support languages like Pascal, then
2225 * we need to fix this to represent multi-dimensional arrays properly.
2226 */
2227 TYPE_NFIELDS (type) = 1;
2228 TYPE_FIELDS (type) = (struct field *)
2229 obstack_alloc (&objfile->type_obstack, sizeof (struct field));
2230 TYPE_FIELD_TYPE (type, 0) = hpread_type_lookup (dn_bufp->darray.indextype,
2231 objfile);
2232 return type;
2233 }
2234
2235 /* Read in and internalize a subrange debug symbol. */
2236 static struct type *
2237 hpread_read_subrange_type (dnttpointer hp_type, union dnttentry *dn_bufp,
2238 struct objfile *objfile)
2239 {
2240 struct type *type;
2241
2242 /* Is it something we've already dealt with. */
2243 type = hpread_alloc_type (hp_type, objfile);
2244 if (TYPE_CODE (type) == TYPE_CODE_RANGE)
2245 return type;
2246
2247 /* Nope, internalize it. */
2248 TYPE_CODE (type) = TYPE_CODE_RANGE;
2249 TYPE_LENGTH (type) = dn_bufp->dsubr.bitlength / 8;
2250 TYPE_NFIELDS (type) = 2;
2251 TYPE_FIELDS (type)
2252 = (struct field *) obstack_alloc (&objfile->type_obstack,
2253 2 * sizeof (struct field));
2254
2255 if (dn_bufp->dsubr.dyn_low)
2256 TYPE_FIELD_BITPOS (type, 0) = 0;
2257 else
2258 TYPE_FIELD_BITPOS (type, 0) = dn_bufp->dsubr.lowbound;
2259
2260 if (dn_bufp->dsubr.dyn_high)
2261 TYPE_FIELD_BITPOS (type, 1) = -1;
2262 else
2263 TYPE_FIELD_BITPOS (type, 1) = dn_bufp->dsubr.highbound;
2264 TYPE_TARGET_TYPE (type) = hpread_type_lookup (dn_bufp->dsubr.subtype,
2265 objfile);
2266 return type;
2267 }
2268
2269 /* struct type * hpread_type_lookup(hp_type, objfile)
2270 * Arguments:
2271 * hp_type: A pointer into the DNTT specifying what type we
2272 * are about to "look up"., or else [for fundamental types
2273 * like int, float, ...] an "immediate" structure describing
2274 * the type.
2275 * objfile: ?
2276 * Return value: A pointer to a "struct type" (representation of a
2277 * type in GDB's internal symbol table - see gdbtypes.h)
2278 * Routine description:
2279 * There are a variety of places when scanning the DNTT when we
2280 * need to interpret a "type" field. The simplest and most basic
2281 * example is when we're processing the symbol table record
2282 * for a data symbol (a SVAR or DVAR record). That has
2283 * a "type" field specifying the type of the data symbol. That
2284 * "type" field is either an "immediate" type specification (for the
2285 * fundamental types) or a DNTT pointer (for more complicated types).
2286 * For the more complicated types, we may or may not have already
2287 * processed the pointed-to type. (Multiple data symbols can of course
2288 * share the same type).
2289 * The job of hpread_type_lookup() is to process this "type" field.
2290 * Most of the real work is done in subroutines. Here we interpret
2291 * the immediate flag. If not immediate, chase the DNTT pointer to
2292 * find our way to the SOM record describing the type, switch on
2293 * the SOM kind, and then call an appropriate subroutine depending
2294 * on what kind of type we are constructing. (e.g., an array type,
2295 * a struct/class type, etc).
2296 */
2297 static struct type *
2298 hpread_type_lookup (dnttpointer hp_type, struct objfile *objfile)
2299 {
2300 union dnttentry *dn_bufp;
2301 struct type *tmp_type;
2302
2303 /* First see if it's a simple builtin type. */
2304 if (hp_type.dntti.immediate)
2305 /* If this is a template argument, the argument number is
2306 * encoded in the bitlength. All other cases, just return
2307 * GDB's representation of this fundamental type.
2308 */
2309 if (hp_type.dntti.type == HP_TYPE_TEMPLATE_ARG)
2310 return hpread_get_nth_template_arg (objfile, hp_type.dntti.bitlength);
2311 else
2312 return lookup_fundamental_type (objfile, hpread_type_translate (hp_type));
2313
2314 /* Not a builtin type. We'll have to read it in. */
2315 if (hp_type.dnttp.index < LNTT_SYMCOUNT (objfile))
2316 dn_bufp = hpread_get_lntt (hp_type.dnttp.index, objfile);
2317 else
2318 /* This is a fancy way of returning NULL */
2319 return lookup_fundamental_type (objfile, FT_VOID);
2320
2321 switch (dn_bufp->dblock.kind)
2322 {
2323 case DNTT_TYPE_SRCFILE:
2324 case DNTT_TYPE_MODULE:
2325 case DNTT_TYPE_ENTRY:
2326 case DNTT_TYPE_BEGIN:
2327 case DNTT_TYPE_END:
2328 case DNTT_TYPE_IMPORT:
2329 case DNTT_TYPE_LABEL:
2330 case DNTT_TYPE_FPARAM:
2331 case DNTT_TYPE_SVAR:
2332 case DNTT_TYPE_DVAR:
2333 case DNTT_TYPE_CONST:
2334 case DNTT_TYPE_MEMENUM:
2335 case DNTT_TYPE_VARIANT:
2336 case DNTT_TYPE_FILE:
2337 case DNTT_TYPE_WITH:
2338 case DNTT_TYPE_COMMON:
2339 case DNTT_TYPE_COBSTRUCT:
2340 case DNTT_TYPE_XREF:
2341 case DNTT_TYPE_SA:
2342 case DNTT_TYPE_MACRO:
2343 case DNTT_TYPE_BLOCKDATA:
2344 case DNTT_TYPE_CLASS_SCOPE:
2345 case DNTT_TYPE_MEMACCESS:
2346 case DNTT_TYPE_INHERITANCE:
2347 case DNTT_TYPE_OBJECT_ID:
2348 case DNTT_TYPE_FRIEND_CLASS:
2349 case DNTT_TYPE_FRIEND_FUNC:
2350 /* These are not types - something went wrong. */
2351 /* This is a fancy way of returning NULL */
2352 return lookup_fundamental_type (objfile, FT_VOID);
2353
2354 case DNTT_TYPE_FUNCTION:
2355 /* We wind up here when dealing with class member functions
2356 * (called from hpread_read_struct_type(), i.e. when processing
2357 * the class definition itself).
2358 */
2359 return hpread_read_function_type (hp_type, dn_bufp, objfile, 0);
2360
2361 case DNTT_TYPE_DOC_FUNCTION:
2362 return hpread_read_doc_function_type (hp_type, dn_bufp, objfile, 0);
2363
2364 case DNTT_TYPE_TYPEDEF:
2365 {
2366 /* A typedef - chase it down by making a recursive call */
2367 struct type *structtype = hpread_type_lookup (dn_bufp->dtype.type,
2368 objfile);
2369
2370 /* The following came from the base hpread.c that we inherited.
2371 * It is WRONG so I have commented it out. - RT
2372 *...
2373
2374 char *suffix;
2375 suffix = VT (objfile) + dn_bufp->dtype.name;
2376 TYPE_NAME (structtype) = suffix;
2377
2378 * ... further explanation ....
2379 *
2380 * What we have here is a typedef pointing to a typedef.
2381 * E.g.,
2382 * typedef int foo;
2383 * typedef foo fum;
2384 *
2385 * What we desire to build is (these are pictures
2386 * of "struct type"'s):
2387 *
2388 * +---------+ +----------+ +------------+
2389 * | typedef | | typedef | | fund. type |
2390 * | type| -> | type| -> | |
2391 * | "fum" | | "foo" | | "int" |
2392 * +---------+ +----------+ +------------+
2393 *
2394 * What this commented-out code is doing is smashing the
2395 * name of pointed-to-type to be the same as the pointed-from
2396 * type. So we wind up with something like:
2397 *
2398 * +---------+ +----------+ +------------+
2399 * | typedef | | typedef | | fund. type |
2400 * | type| -> | type| -> | |
2401 * | "fum" | | "fum" | | "fum" |
2402 * +---------+ +----------+ +------------+
2403 *
2404 */
2405
2406 return structtype;
2407 }
2408
2409 case DNTT_TYPE_TAGDEF:
2410 {
2411 /* Just a little different from above. We have to tack on
2412 * an identifier of some kind (struct, union, enum, class, etc).
2413 */
2414 struct type *structtype = hpread_type_lookup (dn_bufp->dtype.type,
2415 objfile);
2416 char *prefix, *suffix;
2417 suffix = VT (objfile) + dn_bufp->dtype.name;
2418
2419 /* Lookup the next type in the list. It should be a structure,
2420 * union, class, enum, or template type.
2421 * We will need to attach that to our name.
2422 */
2423 if (dn_bufp->dtype.type.dnttp.index < LNTT_SYMCOUNT (objfile))
2424 dn_bufp = hpread_get_lntt (dn_bufp->dtype.type.dnttp.index, objfile);
2425 else
2426 {
2427 complain (&hpread_type_lookup_complaint);
2428 return;
2429 }
2430
2431 if (dn_bufp->dblock.kind == DNTT_TYPE_STRUCT)
2432 {
2433 prefix = "struct ";
2434 }
2435 else if (dn_bufp->dblock.kind == DNTT_TYPE_UNION)
2436 {
2437 prefix = "union ";
2438 }
2439 else if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS)
2440 {
2441 /* Further field for CLASS saying how it was really declared */
2442 /* 0==class, 1==union, 2==struct */
2443 if (dn_bufp->dclass.class_decl == 0)
2444 prefix = "class ";
2445 else if (dn_bufp->dclass.class_decl == 1)
2446 prefix = "union ";
2447 else if (dn_bufp->dclass.class_decl == 2)
2448 prefix = "struct ";
2449 else
2450 prefix = "";
2451 }
2452 else if (dn_bufp->dblock.kind == DNTT_TYPE_ENUM)
2453 {
2454 prefix = "enum ";
2455 }
2456 else if (dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE)
2457 {
2458 prefix = "template ";
2459 }
2460 else
2461 {
2462 prefix = "";
2463 }
2464
2465 /* Build the correct name. */
2466 structtype->name
2467 = (char *) obstack_alloc (&objfile->type_obstack,
2468 strlen (prefix) + strlen (suffix) + 1);
2469 TYPE_NAME (structtype) = strcpy (TYPE_NAME (structtype), prefix);
2470 TYPE_NAME (structtype) = strcat (TYPE_NAME (structtype), suffix);
2471 TYPE_TAG_NAME (structtype) = suffix;
2472
2473 /* For classes/structs, we have to set the static member "physnames"
2474 to point to strings like "Class::Member" */
2475 if (TYPE_CODE (structtype) == TYPE_CODE_STRUCT)
2476 fix_static_member_physnames (structtype, suffix, objfile);
2477
2478 return structtype;
2479 }
2480
2481 case DNTT_TYPE_POINTER:
2482 /* Pointer type - call a routine in gdbtypes.c that constructs
2483 * the appropriate GDB type.
2484 */
2485 return make_pointer_type (
2486 hpread_type_lookup (dn_bufp->dptr.pointsto,
2487 objfile),
2488 NULL);
2489
2490 case DNTT_TYPE_REFERENCE:
2491 /* C++ reference type - call a routine in gdbtypes.c that constructs
2492 * the appropriate GDB type.
2493 */
2494 return make_reference_type (
2495 hpread_type_lookup (dn_bufp->dreference.pointsto,
2496 objfile),
2497 NULL);
2498
2499 case DNTT_TYPE_ENUM:
2500 return hpread_read_enum_type (hp_type, dn_bufp, objfile);
2501 case DNTT_TYPE_SET:
2502 return hpread_read_set_type (hp_type, dn_bufp, objfile);
2503 case DNTT_TYPE_SUBRANGE:
2504 return hpread_read_subrange_type (hp_type, dn_bufp, objfile);
2505 case DNTT_TYPE_ARRAY:
2506 return hpread_read_array_type (hp_type, dn_bufp, objfile);
2507 case DNTT_TYPE_STRUCT:
2508 case DNTT_TYPE_UNION:
2509 return hpread_read_struct_type (hp_type, dn_bufp, objfile);
2510 case DNTT_TYPE_FIELD:
2511 return hpread_type_lookup (dn_bufp->dfield.type, objfile);
2512
2513 case DNTT_TYPE_FUNCTYPE:
2514 /* Here we want to read the function SOMs and return a
2515 * type for it. We get here, for instance, when processing
2516 * pointer-to-function type.
2517 */
2518 return hpread_read_function_type (hp_type, dn_bufp, objfile, 0);
2519
2520 case DNTT_TYPE_PTRMEM:
2521 /* Declares a C++ pointer-to-data-member type.
2522 * The "pointsto" field defines the class,
2523 * while the "memtype" field defines the pointed-to-type.
2524 */
2525 {
2526 struct type *ptrmemtype;
2527 struct type *class_type;
2528 struct type *memtype;
2529 memtype = hpread_type_lookup (dn_bufp->dptrmem.memtype,
2530 objfile),
2531 class_type = hpread_type_lookup (dn_bufp->dptrmem.pointsto,
2532 objfile),
2533 ptrmemtype = alloc_type (objfile);
2534 smash_to_member_type (ptrmemtype, class_type, memtype);
2535 return make_pointer_type (ptrmemtype, NULL);
2536 }
2537 break;
2538
2539 case DNTT_TYPE_PTRMEMFUNC:
2540 /* Defines a C++ pointer-to-function-member type.
2541 * The "pointsto" field defines the class,
2542 * while the "memtype" field defines the pointed-to-type.
2543 */
2544 {
2545 struct type *ptrmemtype;
2546 struct type *class_type;
2547 struct type *functype;
2548 struct type *retvaltype;
2549 int nargs;
2550 int i;
2551 struct type **args_type;
2552 class_type = hpread_type_lookup (dn_bufp->dptrmem.pointsto,
2553 objfile);
2554 functype = hpread_type_lookup (dn_bufp->dptrmem.memtype,
2555 objfile);
2556 retvaltype = TYPE_TARGET_TYPE (functype);
2557 nargs = TYPE_NFIELDS (functype);
2558 args_type = (struct type **) xmalloc ((nargs + 1) * sizeof (struct type *));
2559 for (i = 0; i < nargs; i++)
2560 {
2561 args_type[i] = TYPE_FIELD_TYPE (functype, i);
2562 }
2563 args_type[nargs] = NULL;
2564 ptrmemtype = alloc_type (objfile);
2565 smash_to_method_type (ptrmemtype, class_type, retvaltype, args_type);
2566 return make_pointer_type (ptrmemtype, NULL);
2567 }
2568 break;
2569
2570 case DNTT_TYPE_CLASS:
2571 return hpread_read_struct_type (hp_type, dn_bufp, objfile);
2572
2573 case DNTT_TYPE_GENFIELD:
2574 /* Chase pointer from GENFIELD to FIELD, and make recursive
2575 * call on that.
2576 */
2577 return hpread_type_lookup (dn_bufp->dgenfield.field, objfile);
2578
2579 case DNTT_TYPE_VFUNC:
2580 /* C++ virtual function.
2581 * We get here in the course of processing a class type which
2582 * contains virtual functions. Just go through another level
2583 * of indirection to get to the pointed-to function SOM.
2584 */
2585 return hpread_type_lookup (dn_bufp->dvfunc.funcptr, objfile);
2586
2587 case DNTT_TYPE_MODIFIER:
2588 /* Check the modifiers and then just make a recursive call on
2589 * the "type" pointed to by the modifier DNTT.
2590 *
2591 * pai:: FIXME -- do we ever want to handle "m_duplicate" and
2592 * "m_void" modifiers? Is static_flag really needed here?
2593 * (m_static used for methods of classes, elsewhere).
2594 */
2595 tmp_type = make_cv_type (dn_bufp->dmodifier.m_const,
2596 dn_bufp->dmodifier.m_volatile,
2597 hpread_type_lookup (dn_bufp->dmodifier.type, objfile),
2598 0);
2599 return tmp_type;
2600
2601
2602 case DNTT_TYPE_MEMFUNC:
2603 /* Member function. Treat like a function.
2604 * I think we get here in the course of processing a
2605 * pointer-to-member-function type...
2606 */
2607 return hpread_read_function_type (hp_type, dn_bufp, objfile, 0);
2608
2609 case DNTT_TYPE_DOC_MEMFUNC:
2610 return hpread_read_doc_function_type (hp_type, dn_bufp, objfile, 0);
2611
2612 case DNTT_TYPE_TEMPLATE:
2613 /* Template - sort of the header for a template definition,
2614 * which like a class, points to a member list and also points
2615 * to a TEMPLATE_ARG list of type-arguments.
2616 */
2617 return hpread_read_struct_type (hp_type, dn_bufp, objfile);
2618
2619 case DNTT_TYPE_TEMPLATE_ARG:
2620 {
2621 char *name;
2622 /* The TEMPLATE record points to an argument list of
2623 * TEMPLATE_ARG records, each of which describes one
2624 * of the type-arguments.
2625 */
2626 name = VT (objfile) + dn_bufp->dtempl_arg.name;
2627 return hpread_read_templ_arg_type (hp_type, dn_bufp, objfile, name);
2628 }
2629
2630 case DNTT_TYPE_FUNC_TEMPLATE:
2631 /* We wind up here when processing a TEMPLATE type,
2632 * if the template has member function(s).
2633 * Treat it like a FUNCTION.
2634 */
2635 return hpread_read_function_type (hp_type, dn_bufp, objfile, 0);
2636
2637 case DNTT_TYPE_LINK:
2638 /* The LINK record is used to link up templates with instantiations.
2639 * There is no type associated with the LINK record per se.
2640 */
2641 return lookup_fundamental_type (objfile, FT_VOID);
2642
2643 /* Also not yet handled... */
2644 /* case DNTT_TYPE_DYN_ARRAY_DESC: */
2645 /* case DNTT_TYPE_DESC_SUBRANGE: */
2646 /* case DNTT_TYPE_BEGIN_EXT: */
2647 /* case DNTT_TYPE_INLN: */
2648 /* case DNTT_TYPE_INLN_LIST: */
2649 /* case DNTT_TYPE_ALIAS: */
2650 default:
2651 /* A fancy way of returning NULL */
2652 return lookup_fundamental_type (objfile, FT_VOID);
2653 }
2654 }
2655
2656 static sltpointer
2657 hpread_record_lines (struct subfile *subfile, sltpointer s_idx,
2658 sltpointer e_idx, struct objfile *objfile,
2659 CORE_ADDR offset)
2660 {
2661 union sltentry *sl_bufp;
2662
2663 while (s_idx <= e_idx)
2664 {
2665 sl_bufp = hpread_get_slt (s_idx, objfile);
2666 /* Only record "normal" entries in the SLT. */
2667 if (sl_bufp->snorm.sltdesc == SLT_NORMAL
2668 || sl_bufp->snorm.sltdesc == SLT_EXIT)
2669 record_line (subfile, sl_bufp->snorm.line,
2670 sl_bufp->snorm.address + offset);
2671 else if (sl_bufp->snorm.sltdesc == SLT_NORMAL_OFFSET)
2672 record_line (subfile, sl_bufp->snormoff.line,
2673 sl_bufp->snormoff.address + offset);
2674 s_idx++;
2675 }
2676 return e_idx;
2677 }
2678
2679 /* Given a function "f" which is a member of a class, find
2680 * the classname that it is a member of. Used to construct
2681 * the name (e.g., "c::f") which GDB will put in the
2682 * "demangled name" field of the function's symbol.
2683 * Called from hpread_process_one_debug_symbol()
2684 * If "f" is not a member function, return NULL.
2685 */
2686 char *
2687 class_of (struct type *functype)
2688 {
2689 struct type *first_param_type;
2690 char *first_param_name;
2691 struct type *pointed_to_type;
2692 char *class_name;
2693
2694 /* Check that the function has a first argument "this",
2695 * and that "this" is a pointer to a class. If not,
2696 * functype is not a member function, so return NULL.
2697 */
2698 if (TYPE_NFIELDS (functype) == 0)
2699 return NULL;
2700 first_param_name = TYPE_FIELD_NAME (functype, 0);
2701 if (first_param_name == NULL)
2702 return NULL; /* paranoia */
2703 if (strcmp (first_param_name, "this"))
2704 return NULL;
2705 first_param_type = TYPE_FIELD_TYPE (functype, 0);
2706 if (first_param_type == NULL)
2707 return NULL; /* paranoia */
2708 if (TYPE_CODE (first_param_type) != TYPE_CODE_PTR)
2709 return NULL;
2710
2711 /* Get the thing that "this" points to, check that
2712 * it's a class, and get its class name.
2713 */
2714 pointed_to_type = TYPE_TARGET_TYPE (first_param_type);
2715 if (pointed_to_type == NULL)
2716 return NULL; /* paranoia */
2717 if (TYPE_CODE (pointed_to_type) != TYPE_CODE_CLASS)
2718 return NULL;
2719 class_name = TYPE_NAME (pointed_to_type);
2720 if (class_name == NULL)
2721 return NULL; /* paranoia */
2722
2723 /* The class name may be of the form "class c", in which case
2724 * we want to strip off the leading "class ".
2725 */
2726 if (strncmp (class_name, "class ", 6) == 0)
2727 class_name += 6;
2728
2729 return class_name;
2730 }
2731
2732 /* Internalize one native debug symbol.
2733 * Called in a loop from hpread_expand_symtab().
2734 * Arguments:
2735 * dn_bufp:
2736 * name:
2737 * section_offsets:
2738 * objfile:
2739 * text_offset:
2740 * text_size:
2741 * filename:
2742 * index: Index of this symbol
2743 * at_module_boundary_p Pointer to boolean flag to control caller's loop.
2744 */
2745
2746 static void
2747 hpread_process_one_debug_symbol (union dnttentry *dn_bufp, char *name,
2748 struct section_offsets *section_offsets,
2749 struct objfile *objfile, CORE_ADDR text_offset,
2750 int text_size, char *filename, int index,
2751 int *at_module_boundary_p)
2752 {
2753 unsigned long desc;
2754 int type;
2755 CORE_ADDR valu;
2756 int offset = ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
2757 int data_offset = ANOFFSET (section_offsets, SECT_OFF_DATA (objfile));
2758 union dnttentry *dn_temp;
2759 dnttpointer hp_type;
2760 struct symbol *sym;
2761 struct context_stack *new;
2762 char *class_scope_name;
2763
2764 /* Allocate one GDB debug symbol and fill in some default values. */
2765 sym = (struct symbol *) obstack_alloc (&objfile->symbol_obstack,
2766 sizeof (struct symbol));
2767 memset (sym, 0, sizeof (struct symbol));
2768 SYMBOL_NAME (sym) = obsavestring (name, strlen (name), &objfile->symbol_obstack);
2769 SYMBOL_LANGUAGE (sym) = language_auto;
2770 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
2771 SYMBOL_LINE (sym) = 0;
2772 SYMBOL_VALUE (sym) = 0;
2773 SYMBOL_CLASS (sym) = LOC_TYPEDEF;
2774
2775 /* Just a trick in case the SOM debug symbol is a type definition.
2776 * There are routines that are set up to build a GDB type symbol, given
2777 * a SOM dnttpointer. So we set up a dummy SOM dnttpointer "hp_type".
2778 * This allows us to call those same routines.
2779 */
2780 hp_type.dnttp.extension = 1;
2781 hp_type.dnttp.immediate = 0;
2782 hp_type.dnttp.global = 0;
2783 hp_type.dnttp.index = index;
2784
2785 /* This "type" is the type of SOM record.
2786 * Switch on SOM type.
2787 */
2788 type = dn_bufp->dblock.kind;
2789 switch (type)
2790 {
2791 case DNTT_TYPE_SRCFILE:
2792 /* This type of symbol indicates from which source file or
2793 * include file any following data comes. It may indicate:
2794 *
2795 * o The start of an entirely new source file (and thus
2796 * a new module)
2797 *
2798 * o The start of a different source file due to #include
2799 *
2800 * o The end of an include file and the return to the original
2801 * file. Thus if "foo.c" includes "bar.h", we see first
2802 * a SRCFILE for foo.c, then one for bar.h, and then one for
2803 * foo.c again.
2804 *
2805 * If it indicates the start of a new module then we must
2806 * finish the symbol table of the previous module
2807 * (if any) and start accumulating a new symbol table.
2808 */
2809
2810 valu = text_offset;
2811 if (!last_source_file)
2812 {
2813 /*
2814 * A note on "last_source_file": this is a char* pointing
2815 * to the actual file name. "start_symtab" sets it,
2816 * "end_symtab" clears it.
2817 *
2818 * So if "last_source_file" is NULL, then either this is
2819 * the first record we are looking at, or a previous call
2820 * to "end_symtab()" was made to close out the previous
2821 * module. Since we're now quitting the scan loop when we
2822 * see a MODULE END record, we should never get here, except
2823 * in the case that we're not using the quick look-up tables
2824 * and have to use the old system as a fall-back.
2825 */
2826 start_symtab (name, NULL, valu);
2827 record_debugformat ("HP");
2828 SL_INDEX (objfile) = dn_bufp->dsfile.address;
2829 }
2830
2831 else
2832 {
2833 /* Either a new include file, or a SRCFILE record
2834 * saying we are back in the main source (or out of
2835 * a nested include file) again.
2836 */
2837 SL_INDEX (objfile) = hpread_record_lines (current_subfile,
2838 SL_INDEX (objfile),
2839 dn_bufp->dsfile.address,
2840 objfile, offset);
2841 }
2842
2843 /* A note on "start_subfile". This routine will check
2844 * the name we pass it and look for an existing subfile
2845 * of that name. There's thus only one sub-file for the
2846 * actual source (e.g. for "foo.c" in foo.c), despite the
2847 * fact that we'll see lots of SRCFILE entries for foo.c
2848 * inside foo.c.
2849 */
2850 start_subfile (name, NULL);
2851 break;
2852
2853 case DNTT_TYPE_MODULE:
2854 /*
2855 * We no longer ignore DNTT_TYPE_MODULE symbols. The module
2856 * represents the meaningful semantic structure of a compilation
2857 * unit. We expect to start the psymtab-to-symtab expansion
2858 * looking at a MODULE entry, and to end it at the corresponding
2859 * END MODULE entry.
2860 *
2861 *--Begin outdated comments
2862 *
2863 * This record signifies the start of a new source module
2864 * In C/C++ there is no explicit "module" construct in the language,
2865 * but each compilation unit is implicitly a module and they
2866 * do emit the DNTT_TYPE_MODULE records.
2867 * The end of the module is marked by a matching DNTT_TYPE_END record.
2868 *
2869 * The reason GDB gets away with ignoring the DNTT_TYPE_MODULE record
2870 * is it notices the DNTT_TYPE_END record for the previous
2871 * module (see comments under DNTT_TYPE_END case), and then treats
2872 * the next DNTT_TYPE_SRCFILE record as if it were the module-start record.
2873 * (i.e., it makes a start_symtab() call).
2874 * This scheme seems a little convoluted, but I'll leave it
2875 * alone on the principle "if it ain't broke don't fix
2876 * it". (RT).
2877 *
2878 *-- End outdated comments
2879 */
2880
2881 valu = text_offset;
2882 if (!last_source_file)
2883 {
2884 /* Start of a new module. We know this because "last_source_file"
2885 * is NULL, which can only happen the first time or if we just
2886 * made a call to end_symtab() to close out the previous module.
2887 */
2888 start_symtab (name, NULL, valu);
2889 SL_INDEX (objfile) = dn_bufp->dmodule.address;
2890 }
2891 else
2892 {
2893 /* This really shouldn't happen if we're using the quick
2894 * look-up tables, as it would mean we'd scanned past an
2895 * END MODULE entry. But if we're not using the tables,
2896 * we started the module on the SRCFILE entry, so it's ok.
2897 * For now, accept this.
2898 */
2899 /* warning( "Error expanding psymtab, missed module end, found entry for %s",
2900 * name );
2901 */
2902 *at_module_boundary_p = -1;
2903 }
2904
2905 start_subfile (name, NULL);
2906 break;
2907
2908 case DNTT_TYPE_FUNCTION:
2909 case DNTT_TYPE_ENTRY:
2910 /* A function or secondary entry point. */
2911 valu = dn_bufp->dfunc.lowaddr + offset;
2912
2913 /* Record lines up to this point. */
2914 SL_INDEX (objfile) = hpread_record_lines (current_subfile,
2915 SL_INDEX (objfile),
2916 dn_bufp->dfunc.address,
2917 objfile, offset);
2918
2919 WITHIN_FUNCTION (objfile) = 1;
2920 CURRENT_FUNCTION_VALUE (objfile) = valu;
2921
2922 /* Stack must be empty now. */
2923 if (context_stack_depth != 0)
2924 complain (&lbrac_unmatched_complaint, (char *) symnum);
2925 new = push_context (0, valu);
2926
2927 /* Built a type for the function. This includes processing
2928 * the symbol records for the function parameters.
2929 */
2930 SYMBOL_CLASS (sym) = LOC_BLOCK;
2931 SYMBOL_TYPE (sym) = hpread_read_function_type (hp_type, dn_bufp, objfile, 1);
2932
2933 /* The "SYMBOL_NAME" field is expected to be the mangled name
2934 * (if any), which we get from the "alias" field of the SOM record
2935 * if that exists.
2936 */
2937 if ((dn_bufp->dfunc.language == HP_LANGUAGE_CPLUSPLUS) &&
2938 dn_bufp->dfunc.alias && /* has an alias */
2939 *(char *) (VT (objfile) + dn_bufp->dfunc.alias)) /* not a null string */
2940 SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->dfunc.alias;
2941 else
2942 SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->dfunc.name;
2943
2944 /* Special hack to get around HP compilers' insistence on
2945 * reporting "main" as "_MAIN_" for C/C++ */
2946 if ((strcmp (SYMBOL_NAME (sym), "_MAIN_") == 0) &&
2947 (strcmp (VT (objfile) + dn_bufp->dfunc.name, "main") == 0))
2948 SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->dfunc.name;
2949
2950 /* The SYMBOL_CPLUS_DEMANGLED_NAME field is expected to
2951 * be the demangled name.
2952 */
2953 if (dn_bufp->dfunc.language == HP_LANGUAGE_CPLUSPLUS)
2954 {
2955 /* SYMBOL_INIT_DEMANGLED_NAME is a macro which winds up
2956 * calling the demangler in libiberty (cplus_demangle()) to
2957 * do the job. This generally does the job, even though
2958 * it's intended for the GNU compiler and not the aCC compiler
2959 * Note that SYMBOL_INIT_DEMANGLED_NAME calls the
2960 * demangler with arguments DMGL_PARAMS | DMGL_ANSI.
2961 * Generally, we don't want params when we display
2962 * a demangled name, but when I took out the DMGL_PARAMS,
2963 * some things broke, so I'm leaving it in here, and
2964 * working around the issue in stack.c. - RT
2965 */
2966 SYMBOL_INIT_DEMANGLED_NAME (sym, &objfile->symbol_obstack);
2967 if ((SYMBOL_NAME (sym) == VT (objfile) + dn_bufp->dfunc.alias) &&
2968 (!SYMBOL_CPLUS_DEMANGLED_NAME (sym)))
2969 {
2970
2971 /* Well, the symbol name is mangled, but the
2972 * demangler in libiberty failed so the demangled
2973 * field is still NULL. Try to
2974 * do the job ourselves based on the "name" field
2975 * in the SOM record. A complication here is that
2976 * the name field contains only the function name
2977 * (like "f"), whereas we want the class qualification
2978 * (as in "c::f"). Try to reconstruct that.
2979 */
2980 char *basename;
2981 char *classname;
2982 char *dem_name;
2983 basename = VT (objfile) + dn_bufp->dfunc.name;
2984 classname = class_of (SYMBOL_TYPE (sym));
2985 if (classname)
2986 {
2987 dem_name = xmalloc (strlen (basename) + strlen (classname) + 3);
2988 strcpy (dem_name, classname);
2989 strcat (dem_name, "::");
2990 strcat (dem_name, basename);
2991 SYMBOL_CPLUS_DEMANGLED_NAME (sym) = dem_name;
2992 SYMBOL_LANGUAGE (sym) = language_cplus;
2993 }
2994 }
2995 }
2996
2997 /* Add the function symbol to the list of symbols in this blockvector */
2998 if (dn_bufp->dfunc.global)
2999 add_symbol_to_list (sym, &global_symbols);
3000 else
3001 add_symbol_to_list (sym, &file_symbols);
3002 new->name = sym;
3003
3004 /* Search forward to the next BEGIN and also read
3005 * in the line info up to that point.
3006 * Not sure why this is needed.
3007 * In HP FORTRAN this code is harmful since there
3008 * may not be a BEGIN after the FUNCTION.
3009 * So I made it C/C++ specific. - RT
3010 */
3011 if (dn_bufp->dfunc.language == HP_LANGUAGE_C ||
3012 dn_bufp->dfunc.language == HP_LANGUAGE_CPLUSPLUS)
3013 {
3014 while (dn_bufp->dblock.kind != DNTT_TYPE_BEGIN)
3015 {
3016 dn_bufp = hpread_get_lntt (++index, objfile);
3017 if (dn_bufp->dblock.extension)
3018 continue;
3019 }
3020 SL_INDEX (objfile) = hpread_record_lines (current_subfile,
3021 SL_INDEX (objfile),
3022 dn_bufp->dbegin.address,
3023 objfile, offset);
3024 SYMBOL_LINE (sym) = hpread_get_line (dn_bufp->dbegin.address, objfile);
3025 }
3026 record_line (current_subfile, SYMBOL_LINE (sym), valu);
3027 break;
3028
3029 case DNTT_TYPE_DOC_FUNCTION:
3030 valu = dn_bufp->ddocfunc.lowaddr + offset;
3031
3032 /* Record lines up to this point. */
3033 SL_INDEX (objfile) = hpread_record_lines (current_subfile,
3034 SL_INDEX (objfile),
3035 dn_bufp->ddocfunc.address,
3036 objfile, offset);
3037
3038 WITHIN_FUNCTION (objfile) = 1;
3039 CURRENT_FUNCTION_VALUE (objfile) = valu;
3040 /* Stack must be empty now. */
3041 if (context_stack_depth != 0)
3042 complain (&lbrac_unmatched_complaint, (char *) symnum);
3043 new = push_context (0, valu);
3044
3045 /* Built a type for the function. This includes processing
3046 * the symbol records for the function parameters.
3047 */
3048 SYMBOL_CLASS (sym) = LOC_BLOCK;
3049 SYMBOL_TYPE (sym) = hpread_read_doc_function_type (hp_type, dn_bufp, objfile, 1);
3050
3051 /* The "SYMBOL_NAME" field is expected to be the mangled name
3052 * (if any), which we get from the "alias" field of the SOM record
3053 * if that exists.
3054 */
3055 if ((dn_bufp->ddocfunc.language == HP_LANGUAGE_CPLUSPLUS) &&
3056 dn_bufp->ddocfunc.alias && /* has an alias */
3057 *(char *) (VT (objfile) + dn_bufp->ddocfunc.alias)) /* not a null string */
3058 SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->ddocfunc.alias;
3059 else
3060 SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->ddocfunc.name;
3061
3062 /* Special hack to get around HP compilers' insistence on
3063 * reporting "main" as "_MAIN_" for C/C++ */
3064 if ((strcmp (SYMBOL_NAME (sym), "_MAIN_") == 0) &&
3065 (strcmp (VT (objfile) + dn_bufp->ddocfunc.name, "main") == 0))
3066 SYMBOL_NAME (sym) = VT (objfile) + dn_bufp->ddocfunc.name;
3067
3068 if (dn_bufp->ddocfunc.language == HP_LANGUAGE_CPLUSPLUS)
3069 {
3070
3071 /* SYMBOL_INIT_DEMANGLED_NAME is a macro which winds up
3072 * calling the demangler in libiberty (cplus_demangle()) to
3073 * do the job. This generally does the job, even though
3074 * it's intended for the GNU compiler and not the aCC compiler
3075 * Note that SYMBOL_INIT_DEMANGLED_NAME calls the
3076 * demangler with arguments DMGL_PARAMS | DMGL_ANSI.
3077 * Generally, we don't want params when we display
3078 * a demangled name, but when I took out the DMGL_PARAMS,
3079 * some things broke, so I'm leaving it in here, and
3080 * working around the issue in stack.c. - RT
3081 */
3082 SYMBOL_INIT_DEMANGLED_NAME (sym, &objfile->symbol_obstack);
3083
3084 if ((SYMBOL_NAME (sym) == VT (objfile) + dn_bufp->ddocfunc.alias) &&
3085 (!SYMBOL_CPLUS_DEMANGLED_NAME (sym)))
3086 {
3087
3088 /* Well, the symbol name is mangled, but the
3089 * demangler in libiberty failed so the demangled
3090 * field is still NULL. Try to
3091 * do the job ourselves based on the "name" field
3092 * in the SOM record. A complication here is that
3093 * the name field contains only the function name
3094 * (like "f"), whereas we want the class qualification
3095 * (as in "c::f"). Try to reconstruct that.
3096 */
3097 char *basename;
3098 char *classname;
3099 char *dem_name;
3100 basename = VT (objfile) + dn_bufp->ddocfunc.name;
3101 classname = class_of (SYMBOL_TYPE (sym));
3102 if (classname)
3103 {
3104 dem_name = xmalloc (strlen (basename) + strlen (classname) + 3);
3105 strcpy (dem_name, classname);
3106 strcat (dem_name, "::");
3107 strcat (dem_name, basename);
3108 SYMBOL_CPLUS_DEMANGLED_NAME (sym) = dem_name;
3109 SYMBOL_LANGUAGE (sym) = language_cplus;
3110 }
3111 }
3112 }
3113
3114 /* Add the function symbol to the list of symbols in this blockvector */
3115 if (dn_bufp->ddocfunc.global)
3116 add_symbol_to_list (sym, &global_symbols);
3117 else
3118 add_symbol_to_list (sym, &file_symbols);
3119 new->name = sym;
3120
3121 /* Search forward to the next BEGIN and also read
3122 * in the line info up to that point.
3123 * Not sure why this is needed.
3124 * In HP FORTRAN this code is harmful since there
3125 * may not be a BEGIN after the FUNCTION.
3126 * So I made it C/C++ specific. - RT
3127 */
3128 if (dn_bufp->ddocfunc.language == HP_LANGUAGE_C ||
3129 dn_bufp->ddocfunc.language == HP_LANGUAGE_CPLUSPLUS)
3130 {
3131 while (dn_bufp->dblock.kind != DNTT_TYPE_BEGIN)
3132 {
3133 dn_bufp = hpread_get_lntt (++index, objfile);
3134 if (dn_bufp->dblock.extension)
3135 continue;
3136 }
3137 SL_INDEX (objfile) = hpread_record_lines (current_subfile,
3138 SL_INDEX (objfile),
3139 dn_bufp->dbegin.address,
3140 objfile, offset);
3141 SYMBOL_LINE (sym) = hpread_get_line (dn_bufp->dbegin.address, objfile);
3142 }
3143 record_line (current_subfile, SYMBOL_LINE (sym), valu);
3144 break;
3145
3146 case DNTT_TYPE_BEGIN:
3147 /* Begin a new scope. */
3148 if (context_stack_depth == 1 /* this means we're at function level */ &&
3149 context_stack[0].name != NULL /* this means it's a function */ &&
3150 context_stack[0].depth == 0 /* this means it's the first BEGIN
3151 we've seen after the FUNCTION */
3152 )
3153 {
3154 /* This is the first BEGIN after a FUNCTION.
3155 * We ignore this one, since HP compilers always insert
3156 * at least one BEGIN, i.e. it's:
3157 *
3158 * FUNCTION
3159 * argument symbols
3160 * BEGIN
3161 * local symbols
3162 * (possibly nested BEGIN ... END's if there are inner { } blocks)
3163 * END
3164 * END
3165 *
3166 * By ignoring this first BEGIN, the local symbols get treated
3167 * as belonging to the function scope, and "print func::local_sym"
3168 * works (which is what we want).
3169 */
3170
3171 /* All we do here is increase the depth count associated with
3172 * the FUNCTION entry in the context stack. This ensures that
3173 * the next BEGIN we see (if any), representing a real nested { }
3174 * block, will get processed.
3175 */
3176
3177 context_stack[0].depth++;
3178
3179 }
3180 else
3181 {
3182
3183 /* Record lines up to this SLT pointer. */
3184 SL_INDEX (objfile) = hpread_record_lines (current_subfile,
3185 SL_INDEX (objfile),
3186 dn_bufp->dbegin.address,
3187 objfile, offset);
3188 /* Calculate start address of new scope */
3189 valu = hpread_get_location (dn_bufp->dbegin.address, objfile);
3190 valu += offset; /* Relocate for dynamic loading */
3191 /* We use the scope start DNTT index as nesting depth identifier! */
3192 desc = hpread_get_scope_start (dn_bufp->dbegin.address, objfile);
3193 new = push_context (desc, valu);
3194 }
3195 break;
3196
3197 case DNTT_TYPE_END:
3198 /* End a scope. */
3199
3200 /* Valid end kinds are:
3201 * MODULE
3202 * FUNCTION
3203 * WITH
3204 * COMMON
3205 * BEGIN
3206 * CLASS_SCOPE
3207 */
3208
3209 SL_INDEX (objfile) = hpread_record_lines (current_subfile,
3210 SL_INDEX (objfile),
3211 dn_bufp->dend.address,
3212 objfile, offset);
3213 switch (dn_bufp->dend.endkind)
3214 {
3215 case DNTT_TYPE_MODULE:
3216 /* Ending a module ends the symbol table for that module.
3217 * Calling end_symtab() has the side effect of clearing the
3218 * last_source_file pointer, which in turn signals
3219 * process_one_debug_symbol() to treat the next DNTT_TYPE_SRCFILE
3220 * record as a module-begin.
3221 */
3222 valu = text_offset + text_size + offset;
3223
3224 /* Tell our caller that we're done with expanding the
3225 * debug information for a module.
3226 */
3227 *at_module_boundary_p = 1;
3228
3229 /* Don't do this, as our caller will do it!
3230
3231 * (void) end_symtab (valu, objfile, 0);
3232 */
3233 break;
3234
3235 case DNTT_TYPE_FUNCTION:
3236 /* Ending a function, well, ends the function's scope. */
3237 dn_temp = hpread_get_lntt (dn_bufp->dend.beginscope.dnttp.index,
3238 objfile);
3239 valu = dn_temp->dfunc.hiaddr + offset;
3240 /* Insert func params into local list */
3241 merge_symbol_lists (&param_symbols, &local_symbols);
3242 new = pop_context ();
3243 /* Make a block for the local symbols within. */
3244 finish_block (new->name, &local_symbols, new->old_blocks,
3245 new->start_addr, valu, objfile);
3246 WITHIN_FUNCTION (objfile) = 0; /* This may have to change for Pascal */
3247 local_symbols = new->locals;
3248 param_symbols = new->params;
3249 break;
3250
3251 case DNTT_TYPE_BEGIN:
3252 if (context_stack_depth == 1 &&
3253 context_stack[0].name != NULL &&
3254 context_stack[0].depth == 1)
3255 {
3256 /* This is the END corresponding to the
3257 * BEGIN which we ignored - see DNTT_TYPE_BEGIN case above.
3258 */
3259 context_stack[0].depth--;
3260 }
3261 else
3262 {
3263 /* Ending a local scope. */
3264 valu = hpread_get_location (dn_bufp->dend.address, objfile);
3265 /* Why in the hell is this needed? */
3266 valu += offset + 9; /* Relocate for dynamic loading */
3267 new = pop_context ();
3268 desc = dn_bufp->dend.beginscope.dnttp.index;
3269 if (desc != new->depth)
3270 complain (&lbrac_mismatch_complaint, (char *) symnum);
3271
3272 /* Make a block for the local symbols within. */
3273 finish_block (new->name, &local_symbols, new->old_blocks,
3274 new->start_addr, valu, objfile);
3275 local_symbols = new->locals;
3276 param_symbols = new->params;
3277 }
3278 break;
3279
3280 case DNTT_TYPE_WITH:
3281 /* Since we ignore the DNTT_TYPE_WITH that starts the scope,
3282 * we can ignore the DNTT_TYPE_END that ends it.
3283 */
3284 break;
3285
3286 case DNTT_TYPE_COMMON:
3287 /* End a FORTRAN common block. We don't currently handle these */
3288 complain (&hpread_unhandled_end_common_complaint);
3289 break;
3290
3291 case DNTT_TYPE_CLASS_SCOPE:
3292
3293 /* pai: FIXME Not handling nested classes for now -- must
3294 * maintain a stack */
3295 class_scope_name = NULL;
3296
3297 #if 0
3298 /* End a class scope */
3299 valu = hpread_get_location (dn_bufp->dend.address, objfile);
3300 /* Why in the hell is this needed? */
3301 valu += offset + 9; /* Relocate for dynamic loading */
3302 new = pop_context ();
3303 desc = dn_bufp->dend.beginscope.dnttp.index;
3304 if (desc != new->depth)
3305 complain (&lbrac_mismatch_complaint, (char *) symnum);
3306 /* Make a block for the local symbols within. */
3307 finish_block (new->name, &local_symbols, new->old_blocks,
3308 new->start_addr, valu, objfile);
3309 local_symbols = new->locals;
3310 param_symbols = new->params;
3311 #endif
3312 break;
3313
3314 default:
3315 complain (&hpread_unexpected_end_complaint);
3316 break;
3317 }
3318 break;
3319
3320 /* DNTT_TYPE_IMPORT is not handled */
3321
3322 case DNTT_TYPE_LABEL:
3323 SYMBOL_NAMESPACE (sym) = LABEL_NAMESPACE;
3324 break;
3325
3326 case DNTT_TYPE_FPARAM:
3327 /* Function parameters. */
3328 /* Note 1: This code was present in the 4.16 sources, and then
3329 removed, because fparams are handled in
3330 hpread_read_function_type(). However, while fparam symbols
3331 are indeed handled twice, this code here cannot be removed
3332 because then they don't get added to the local symbol list of
3333 the function's code block, which leads to a failure to look
3334 up locals, "this"-relative member names, etc. So I've put
3335 this code back in. pai/1997-07-21 */
3336 /* Note 2: To fix a defect, we stopped adding FPARAMS to local_symbols
3337 in hpread_read_function_type(), so FPARAMS had to be handled
3338 here. I changed the location to be the appropriate argument
3339 kinds rather than LOC_LOCAL. pai/1997-08-08 */
3340 /* Note 3: Well, the fix in Note 2 above broke argument printing
3341 in traceback frames, and further it makes assumptions about the
3342 order of the FPARAM entries from HP compilers (cc and aCC in particular
3343 generate them in reverse orders -- fixing one breaks for the other).
3344 So I've added code in hpread_read_function_type() to add fparams
3345 to a param_symbols list for the current context level. These are
3346 then merged into local_symbols when a function end is reached.
3347 pai/1997-08-11 */
3348
3349 break; /* do nothing; handled in hpread_read_function_type() */
3350
3351 #if 0 /* Old code */
3352 if (dn_bufp->dfparam.regparam)
3353 SYMBOL_CLASS (sym) = LOC_REGISTER;
3354 else if (dn_bufp->dfparam.indirect)
3355 SYMBOL_CLASS (sym) = LOC_REF_ARG;
3356 else
3357 SYMBOL_CLASS (sym) = LOC_ARG;
3358 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
3359 if (dn_bufp->dfparam.copyparam)
3360 {
3361 SYMBOL_VALUE (sym) = dn_bufp->dfparam.location;
3362 #ifdef HPREAD_ADJUST_STACK_ADDRESS
3363 SYMBOL_VALUE (sym)
3364 += HPREAD_ADJUST_STACK_ADDRESS (CURRENT_FUNCTION_VALUE (objfile));
3365 #endif
3366 }
3367 else
3368 SYMBOL_VALUE (sym) = dn_bufp->dfparam.location;
3369 SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dfparam.type, objfile);
3370 add_symbol_to_list (sym, &fparam_symbols);
3371 break;
3372 #endif
3373
3374 case DNTT_TYPE_SVAR:
3375 /* Static variables. */
3376 SYMBOL_CLASS (sym) = LOC_STATIC;
3377
3378 /* Note: There is a case that arises with globals in shared
3379 * libraries where we need to set the address to LOC_INDIRECT.
3380 * This case is if you have a global "g" in one library, and
3381 * it is referenced "extern <type> g;" in another library.
3382 * If we're processing the symbols for the referencing library,
3383 * we'll see a global "g", but in this case the address given
3384 * in the symbol table contains a pointer to the real "g".
3385 * We use the storage class LOC_INDIRECT to indicate this. RT
3386 */
3387 if (is_in_import_list (SYMBOL_NAME (sym), objfile))
3388 SYMBOL_CLASS (sym) = LOC_INDIRECT;
3389
3390 SYMBOL_VALUE_ADDRESS (sym) = dn_bufp->dsvar.location + data_offset;
3391 SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dsvar.type, objfile);
3392
3393 if (dn_bufp->dsvar.global)
3394 add_symbol_to_list (sym, &global_symbols);
3395
3396 else if (WITHIN_FUNCTION (objfile))
3397 add_symbol_to_list (sym, &local_symbols);
3398
3399 else
3400 add_symbol_to_list (sym, &file_symbols);
3401
3402 if (dn_bufp->dsvar.thread_specific)
3403 {
3404 /* Thread-local variable.
3405 */
3406 SYMBOL_CLASS (sym) = LOC_THREAD_LOCAL_STATIC;
3407 SYMBOL_BASEREG (sym) = CR27_REGNUM;
3408
3409 if (objfile->flags & OBJF_SHARED)
3410 {
3411 /*
3412 * This variable is not only thread local but
3413 * in a shared library.
3414 *
3415 * Alas, the shared lib structures are private
3416 * to "somsolib.c". But C lets us point to one.
3417 */
3418 struct so_list *so;
3419
3420 if (objfile->obj_private == NULL)
3421 error ("Internal error in reading shared library information.");
3422
3423 so = ((obj_private_data_t *) (objfile->obj_private))->so_info;
3424 if (so == NULL)
3425 error ("Internal error in reading shared library information.");
3426
3427 /* Thread-locals in shared libraries do NOT have the
3428 * standard offset ("data_offset"), so we re-calculate
3429 * where to look for this variable, using a call-back
3430 * to interpret the private shared-library data.
3431 */
3432 SYMBOL_VALUE_ADDRESS (sym) = dn_bufp->dsvar.location +
3433 so_lib_thread_start_addr (so);
3434 }
3435 }
3436 break;
3437
3438 case DNTT_TYPE_DVAR:
3439 /* Dynamic variables. */
3440 if (dn_bufp->ddvar.regvar)
3441 SYMBOL_CLASS (sym) = LOC_REGISTER;
3442 else
3443 SYMBOL_CLASS (sym) = LOC_LOCAL;
3444
3445 SYMBOL_VALUE (sym) = dn_bufp->ddvar.location;
3446 #ifdef HPREAD_ADJUST_STACK_ADDRESS
3447 SYMBOL_VALUE (sym)
3448 += HPREAD_ADJUST_STACK_ADDRESS (CURRENT_FUNCTION_VALUE (objfile));
3449 #endif
3450 SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->ddvar.type, objfile);
3451 if (dn_bufp->ddvar.global)
3452 add_symbol_to_list (sym, &global_symbols);
3453 else if (WITHIN_FUNCTION (objfile))
3454 add_symbol_to_list (sym, &local_symbols);
3455 else
3456 add_symbol_to_list (sym, &file_symbols);
3457 break;
3458
3459 case DNTT_TYPE_CONST:
3460 /* A constant (pascal?). */
3461 SYMBOL_CLASS (sym) = LOC_CONST;
3462 SYMBOL_VALUE (sym) = dn_bufp->dconst.location;
3463 SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dconst.type, objfile);
3464 if (dn_bufp->dconst.global)
3465 add_symbol_to_list (sym, &global_symbols);
3466 else if (WITHIN_FUNCTION (objfile))
3467 add_symbol_to_list (sym, &local_symbols);
3468 else
3469 add_symbol_to_list (sym, &file_symbols);
3470 break;
3471
3472 case DNTT_TYPE_TYPEDEF:
3473 /* A typedef. We do want to process these, since a name is
3474 * added to the namespace for the typedef'ed name.
3475 */
3476 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
3477 SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dtype.type, objfile);
3478 if (dn_bufp->dtype.global)
3479 add_symbol_to_list (sym, &global_symbols);
3480 else if (WITHIN_FUNCTION (objfile))
3481 add_symbol_to_list (sym, &local_symbols);
3482 else
3483 add_symbol_to_list (sym, &file_symbols);
3484 break;
3485
3486 case DNTT_TYPE_TAGDEF:
3487 {
3488 int global = dn_bufp->dtag.global;
3489 /* Structure, union, enum, template, or class tag definition */
3490 /* We do want to process these, since a name is
3491 * added to the namespace for the tag name (and if C++ class,
3492 * for the typename also).
3493 */
3494 SYMBOL_NAMESPACE (sym) = STRUCT_NAMESPACE;
3495
3496 /* The tag contains in its "type" field a pointer to the
3497 * DNTT_TYPE_STRUCT, DNTT_TYPE_UNION, DNTT_TYPE_ENUM,
3498 * DNTT_TYPE_CLASS or DNTT_TYPE_TEMPLATE
3499 * record that actually defines the type.
3500 */
3501 SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dtype.type, objfile);
3502 TYPE_NAME (sym->type) = SYMBOL_NAME (sym);
3503 TYPE_TAG_NAME (sym->type) = SYMBOL_NAME (sym);
3504 if (dn_bufp->dtag.global)
3505 add_symbol_to_list (sym, &global_symbols);
3506 else if (WITHIN_FUNCTION (objfile))
3507 add_symbol_to_list (sym, &local_symbols);
3508 else
3509 add_symbol_to_list (sym, &file_symbols);
3510
3511 /* If this is a C++ class, then we additionally
3512 * need to define a typedef for the
3513 * class type. E.g., so that the name "c" becomes visible as
3514 * a type name when the user says "class c { ... }".
3515 * In order to figure this out, we need to chase down the "type"
3516 * field to get to the DNTT_TYPE_CLASS record.
3517 *
3518 * We also add the typename for ENUM. Though this isn't
3519 * strictly correct, it is necessary because of the debug info
3520 * generated by the aCC compiler, in which we cannot
3521 * distinguish between:
3522 * enum e { ... };
3523 * and
3524 * typedef enum { ... } e;
3525 * I.e., the compiler emits the same debug info for the above
3526 * two cases, in both cases "e" appearing as a tagdef.
3527 * Therefore go ahead and generate the typename so that
3528 * "ptype e" will work in the above cases.
3529 *
3530 * We also add the typename for TEMPLATE, so as to allow "ptype t"
3531 * when "t" is a template name.
3532 */
3533 if (dn_bufp->dtype.type.dnttp.index < LNTT_SYMCOUNT (objfile))
3534 dn_bufp = hpread_get_lntt (dn_bufp->dtag.type.dnttp.index, objfile);
3535 else
3536 {
3537 complain (&hpread_tagdef_complaint);
3538 return;
3539 }
3540 if (dn_bufp->dblock.kind == DNTT_TYPE_CLASS ||
3541 dn_bufp->dblock.kind == DNTT_TYPE_ENUM ||
3542 dn_bufp->dblock.kind == DNTT_TYPE_TEMPLATE)
3543 {
3544 struct symbol *newsym;
3545
3546 newsym = (struct symbol *) obstack_alloc (&objfile->symbol_obstack,
3547 sizeof (struct symbol));
3548 memset (newsym, 0, sizeof (struct symbol));
3549 SYMBOL_NAME (newsym) = name;
3550 SYMBOL_LANGUAGE (newsym) = language_auto;
3551 SYMBOL_NAMESPACE (newsym) = VAR_NAMESPACE;
3552 SYMBOL_LINE (newsym) = 0;
3553 SYMBOL_VALUE (newsym) = 0;
3554 SYMBOL_CLASS (newsym) = LOC_TYPEDEF;
3555 SYMBOL_TYPE (newsym) = sym->type;
3556 if (global)
3557 add_symbol_to_list (newsym, &global_symbols);
3558 else if (WITHIN_FUNCTION (objfile))
3559 add_symbol_to_list (newsym, &local_symbols);
3560 else
3561 add_symbol_to_list (newsym, &file_symbols);
3562 }
3563 }
3564 break;
3565
3566 case DNTT_TYPE_POINTER:
3567 /* Declares a pointer type. Should not be necessary to do anything
3568 * with the type at this level; these are processed
3569 * at the hpread_type_lookup() level.
3570 */
3571 break;
3572
3573 case DNTT_TYPE_ENUM:
3574 /* Declares an enum type. Should not be necessary to do anything
3575 * with the type at this level; these are processed
3576 * at the hpread_type_lookup() level.
3577 */
3578 break;
3579
3580 case DNTT_TYPE_MEMENUM:
3581 /* Member of enum */
3582 /* Ignored at this level, but hpread_read_enum_type() will take
3583 * care of walking the list of enumeration members.
3584 */
3585 break;
3586
3587 case DNTT_TYPE_SET:
3588 /* Declares a set type. Should not be necessary to do anything
3589 * with the type at this level; these are processed
3590 * at the hpread_type_lookup() level.
3591 */
3592 break;
3593
3594 case DNTT_TYPE_SUBRANGE:
3595 /* Declares a subrange type. Should not be necessary to do anything
3596 * with the type at this level; these are processed
3597 * at the hpread_type_lookup() level.
3598 */
3599 break;
3600
3601 case DNTT_TYPE_ARRAY:
3602 /* Declares an array type. Should not be necessary to do anything
3603 * with the type at this level; these are processed
3604 * at the hpread_type_lookup() level.
3605 */
3606 break;
3607
3608 case DNTT_TYPE_STRUCT:
3609 case DNTT_TYPE_UNION:
3610 /* Declares an struct/union type.
3611 * Should not be necessary to do anything
3612 * with the type at this level; these are processed
3613 * at the hpread_type_lookup() level.
3614 */
3615 break;
3616
3617 case DNTT_TYPE_FIELD:
3618 /* Structure/union/class field */
3619 /* Ignored at this level, but hpread_read_struct_type() will take
3620 * care of walking the list of structure/union/class members.
3621 */
3622 break;
3623
3624 /* DNTT_TYPE_VARIANT is not handled by GDB */
3625
3626 /* DNTT_TYPE_FILE is not handled by GDB */
3627
3628 case DNTT_TYPE_FUNCTYPE:
3629 /* Function type */
3630 /* Ignored at this level, handled within hpread_type_lookup() */
3631 break;
3632
3633 case DNTT_TYPE_WITH:
3634 /* This is emitted within methods to indicate "with <class>"
3635 * scoping rules (i.e., indicate that the class data members
3636 * are directly visible).
3637 * However, since GDB already infers this by looking at the
3638 * "this" argument, interpreting the DNTT_TYPE_WITH
3639 * symbol record is unnecessary.
3640 */
3641 break;
3642
3643 case DNTT_TYPE_COMMON:
3644 /* FORTRAN common. Not yet handled. */
3645 complain (&hpread_unhandled_common_complaint);
3646 break;
3647
3648 /* DNTT_TYPE_COBSTRUCT is not handled by GDB. */
3649 /* DNTT_TYPE_XREF is not handled by GDB. */
3650 /* DNTT_TYPE_SA is not handled by GDB. */
3651 /* DNTT_TYPE_MACRO is not handled by GDB */
3652
3653 case DNTT_TYPE_BLOCKDATA:
3654 /* Not sure what this is - part of FORTRAN support maybe?
3655 * Anyway, not yet handled.
3656 */
3657 complain (&hpread_unhandled_blockdata_complaint);
3658 break;
3659
3660 case DNTT_TYPE_CLASS_SCOPE:
3661
3662
3663
3664 /* The compiler brackets member functions with a CLASS_SCOPE/END
3665 * pair of records, presumably to put them in a different scope
3666 * from the module scope where they are normally defined.
3667 * E.g., in the situation:
3668 * void f() { ... }
3669 * void c::f() { ...}
3670 * The member function "c::f" will be bracketed by a CLASS_SCOPE/END.
3671 * This causes "break f" at the module level to pick the
3672 * the file-level function f(), not the member function
3673 * (which needs to be referenced via "break c::f").
3674 *
3675 * Here we record the class name to generate the demangled names of
3676 * member functions later.
3677 *
3678 * FIXME Not being used now for anything -- cplus_demangle seems
3679 * enough for getting the class-qualified names of functions. We
3680 * may need this for handling nested classes and types. */
3681
3682 /* pai: FIXME Not handling nested classes for now -- need to
3683 * maintain a stack */
3684
3685 dn_temp = hpread_get_lntt (dn_bufp->dclass_scope.type.dnttp.index, objfile);
3686 if (dn_temp->dblock.kind == DNTT_TYPE_TAGDEF)
3687 class_scope_name = VT (objfile) + dn_temp->dtag.name;
3688 else
3689 class_scope_name = NULL;
3690
3691 #if 0
3692
3693 /* Begin a new scope. */
3694 SL_INDEX (objfile) = hpread_record_lines (current_subfile,
3695 SL_INDEX (objfile),
3696 dn_bufp->dclass_scope.address,
3697 objfile, offset);
3698 valu = hpread_get_location (dn_bufp->dclass_scope.address, objfile);
3699 valu += offset; /* Relocate for dynamic loading */
3700 desc = hpread_get_scope_start (dn_bufp->dclass_scope.address, objfile);
3701 /* We use the scope start DNTT index as the nesting depth identifier! */
3702 new = push_context (desc, valu);
3703 #endif
3704 break;
3705
3706 case DNTT_TYPE_REFERENCE:
3707 /* Declares a C++ reference type. Should not be necessary to do anything
3708 * with the type at this level; these are processed
3709 * at the hpread_type_lookup() level.
3710 */
3711 break;
3712
3713 case DNTT_TYPE_PTRMEM:
3714 /* Declares a C++ pointer-to-data-member type. This does not
3715 * need to be handled at this level; being a type description it
3716 * is instead handled at the hpread_type_lookup() level.
3717 */
3718 break;
3719
3720 case DNTT_TYPE_PTRMEMFUNC:
3721 /* Declares a C++ pointer-to-function-member type. This does not
3722 * need to be handled at this level; being a type description it
3723 * is instead handled at the hpread_type_lookup() level.
3724 */
3725 break;
3726
3727 case DNTT_TYPE_CLASS:
3728 /* Declares a class type.
3729 * Should not be necessary to do anything
3730 * with the type at this level; these are processed
3731 * at the hpread_type_lookup() level.
3732 */
3733 break;
3734
3735 case DNTT_TYPE_GENFIELD:
3736 /* I believe this is used for class member functions */
3737 /* Ignored at this level, but hpread_read_struct_type() will take
3738 * care of walking the list of class members.
3739 */
3740 break;
3741
3742 case DNTT_TYPE_VFUNC:
3743 /* Virtual function */
3744 /* This does not have to be handled at this level; handled in
3745 * the course of processing class symbols.
3746 */
3747 break;
3748
3749 case DNTT_TYPE_MEMACCESS:
3750 /* DDE ignores this symbol table record.
3751 * It has something to do with "modified access" to class members.
3752 * I'll assume we can safely ignore it too.
3753 */
3754 break;
3755
3756 case DNTT_TYPE_INHERITANCE:
3757 /* These don't have to be handled here, since they are handled
3758 * within hpread_read_struct_type() in the process of constructing
3759 * a class type.
3760 */
3761 break;
3762
3763 case DNTT_TYPE_FRIEND_CLASS:
3764 case DNTT_TYPE_FRIEND_FUNC:
3765 /* These can safely be ignored, as GDB doesn't need this
3766 * info. DDE only uses it in "describe". We may later want
3767 * to extend GDB's "ptype" to give this info, but for now
3768 * it seems safe enough to ignore it.
3769 */
3770 break;
3771
3772 case DNTT_TYPE_MODIFIER:
3773 /* Intended to supply "modified access" to a type */
3774 /* From the way DDE handles this, it looks like it always
3775 * modifies a type. Therefore it is safe to ignore it at this
3776 * level, and handle it in hpread_type_lookup().
3777 */
3778 break;
3779
3780 case DNTT_TYPE_OBJECT_ID:
3781 /* Just ignore this - that's all DDE does */
3782 break;
3783
3784 case DNTT_TYPE_MEMFUNC:
3785 /* Member function */
3786 /* This does not have to be handled at this level; handled in
3787 * the course of processing class symbols.
3788 */
3789 break;
3790
3791 case DNTT_TYPE_DOC_MEMFUNC:
3792 /* Member function */
3793 /* This does not have to be handled at this level; handled in
3794 * the course of processing class symbols.
3795 */
3796 break;
3797
3798 case DNTT_TYPE_TEMPLATE:
3799 /* Template - sort of the header for a template definition,
3800 * which like a class, points to a member list and also points
3801 * to a TEMPLATE_ARG list of type-arguments.
3802 * We do not need to process TEMPLATE records at this level though.
3803 */
3804 break;
3805
3806 case DNTT_TYPE_TEMPLATE_ARG:
3807 /* The TEMPLATE record points to an argument list of
3808 * TEMPLATE_ARG records, each of which describes one
3809 * of the type-arguments.
3810 * We do not need to process TEMPLATE_ARG records at this level though.
3811 */
3812 break;
3813
3814 case DNTT_TYPE_FUNC_TEMPLATE:
3815 /* This will get emitted for member functions of templates.
3816 * But we don't need to process this record at this level though,
3817 * we will process it in the course of processing a TEMPLATE
3818 * record.
3819 */
3820 break;
3821
3822 case DNTT_TYPE_LINK:
3823 /* The LINK record is used to link up templates with instantiations. */
3824 /* It is not clear why this is needed, and furthermore aCC does
3825 * not appear to generate this, so I think we can safely ignore it. - RT
3826 */
3827 break;
3828
3829 /* DNTT_TYPE_DYN_ARRAY_DESC is not handled by GDB */
3830 /* DNTT_TYPE_DESC_SUBRANGE is not handled by GDB */
3831 /* DNTT_TYPE_BEGIN_EXT is not handled by GDB */
3832 /* DNTT_TYPE_INLN is not handled by GDB */
3833 /* DNTT_TYPE_INLN_LIST is not handled by GDB */
3834 /* DNTT_TYPE_ALIAS is not handled by GDB */
3835
3836 default:
3837 break;
3838 }
3839 }
3840
3841 /* Get nesting depth for a DNTT entry.
3842 * DN_BUFP points to a DNTT entry.
3843 * OBJFILE is the object file.
3844 * REPORT_NESTED is a flag; if 0, real nesting depth is
3845 * reported, if it is 1, the function simply returns a
3846 * non-zero value if the nesting depth is anything > 0.
3847 *
3848 * Return value is an integer. 0 => not a local type / name
3849 * positive return => type or name is local to some
3850 * block or function.
3851 */
3852
3853
3854 /* elz: ATTENTION: FIXME: NOTE: WARNING!!!!
3855 this function now returns 0 right away. It was taking too much time
3856 at start up. Now, though, the local types are not handled correctly.
3857 */
3858
3859
3860 static int
3861 hpread_get_scope_depth (union dnttentry *dn_bufp, struct objfile *objfile,
3862 int report_nested)
3863 {
3864 register int index;
3865 register union dnttentry *dn_tmp;
3866 register short depth = 0;
3867 /****************************/
3868 return 0;
3869 /****************************/
3870
3871 index = (((char *) dn_bufp) - LNTT (objfile)) / (sizeof (struct dntt_type_block));
3872
3873 while (--index >= 0)
3874 {
3875 dn_tmp = hpread_get_lntt (index, objfile);
3876 switch (dn_tmp->dblock.kind)
3877 {
3878 case DNTT_TYPE_MODULE:
3879 return depth;
3880 case DNTT_TYPE_END:
3881 /* index is signed int; dnttp.index is 29-bit unsigned int! */
3882 index = (int) dn_tmp->dend.beginscope.dnttp.index;
3883 break;
3884 case DNTT_TYPE_BEGIN:
3885 case DNTT_TYPE_FUNCTION:
3886 case DNTT_TYPE_DOC_FUNCTION:
3887 case DNTT_TYPE_WITH:
3888 case DNTT_TYPE_COMMON:
3889 case DNTT_TYPE_CLASS_SCOPE:
3890 depth++;
3891 if (report_nested)
3892 return 1;
3893 break;
3894 default:
3895 break;
3896 }
3897 }
3898 return depth;
3899 }
3900
3901 /* Adjust the bitoffsets for all fields of an anonymous union of
3902 type TYPE by negative BITS. This handles HP aCC's hideous habit
3903 of giving members of anonymous unions bit offsets relative to the
3904 enclosing structure instead of relative to the union itself. */
3905
3906 static void
3907 hpread_adjust_bitoffsets (struct type *type, int bits)
3908 {
3909 register int i;
3910
3911 /* This is done only for unions; caller had better check that
3912 it is an anonymous one. */
3913 if (TYPE_CODE (type) != TYPE_CODE_UNION)
3914 return;
3915
3916 /* Adjust each field; since this is a union, there are no base
3917 classes. Also no static membes. Also, no need for recursion as
3918 the members of this union if themeselves structs or unions, have
3919 the correct bitoffsets; if an anonymous union is a member of this
3920 anonymous union, the code in hpread_read_struct_type() will
3921 adjust for that. */
3922
3923 for (i = 0; i < TYPE_NFIELDS (type); i++)
3924 TYPE_FIELD_BITPOS (type, i) -= bits;
3925 }
3926
3927 /* Because of quirks in HP compilers' treatment of anonymous unions inside
3928 classes, we have to chase through a chain of threaded FIELD entries.
3929 If we encounter an anonymous union in the chain, we must recursively skip over
3930 that too.
3931
3932 This function does a "next" in the chain of FIELD entries, but transparently
3933 skips over anonymous unions' fields (recursively).
3934
3935 Inputs are the number of times to do "next" at the top level, the dnttpointer
3936 (FIELD) and entry pointer (FIELDP) for the dntt record corresponding to it,
3937 and the ubiquitous objfile parameter. (Note: FIELDP is a **.) Return value
3938 is a dnttpointer for the new field after all the skipped ones */
3939
3940 static dnttpointer
3941 hpread_get_next_skip_over_anon_unions (int skip_fields, dnttpointer field,
3942 union dnttentry **fieldp,
3943 struct objfile *objfile)
3944 {
3945 struct type *anon_type;
3946 register int i;
3947 int bitoffset;
3948 char *name;
3949
3950 for (i = 0; i < skip_fields; i++)
3951 {
3952 /* Get type of item we're looking at now; recursively processes the types
3953 of these intermediate items we skip over, so they aren't lost. */
3954 anon_type = hpread_type_lookup ((*fieldp)->dfield.type, objfile);
3955 anon_type = CHECK_TYPEDEF (anon_type);
3956 bitoffset = (*fieldp)->dfield.bitoffset;
3957 name = VT (objfile) + (*fieldp)->dfield.name;
3958 /* First skip over one item to avoid stack death on recursion */
3959 field = (*fieldp)->dfield.nextfield;
3960 *fieldp = hpread_get_lntt (field.dnttp.index, objfile);
3961 /* Do we have another anonymous union? If so, adjust the bitoffsets
3962 of its members and skip over its members. */
3963 if ((TYPE_CODE (anon_type) == TYPE_CODE_UNION) &&
3964 (!name || STREQ (name, "")))
3965 {
3966 hpread_adjust_bitoffsets (anon_type, bitoffset);
3967 field = hpread_get_next_skip_over_anon_unions (TYPE_NFIELDS (anon_type), field, fieldp, objfile);
3968 }
3969 }
3970 return field;
3971 }
This page took 0.112145 seconds and 4 git commands to generate.