* sim-if.c (sim_stop): Update call to @cpu@_engine_stop.
[deliverable/binutils-gdb.git] / gdb / stabsread.c
CommitLineData
d07734e3 1/* Support routines for decoding "stabs" debugging information format.
a871ab92 2 Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998
d07734e3
FF
3 Free Software Foundation, Inc.
4
5This file is part of GDB.
6
7This program is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2 of the License, or
10(at your option) any later version.
11
12This program is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with this program; if not, write to the Free Software
6c9638b4 19Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
d07734e3
FF
20
21/* Support routines for reading and decoding debugging information in
22 the "stabs" format. This format is used with many systems that use
23 the a.out object file format, as well as some systems that use
24 COFF or ELF where the stabs data is placed in a special section.
25 Avoid placing any object file format specific code in this file. */
26
27#include "defs.h"
2b576293 28#include "gdb_string.h"
d07734e3
FF
29#include "bfd.h"
30#include "obstack.h"
31#include "symtab.h"
32#include "gdbtypes.h"
fe82872c 33#include "expression.h"
51b80b00 34#include "symfile.h"
d07734e3
FF
35#include "objfiles.h"
36#include "aout/stab_gnu.h" /* We always use GNU stabs, not native */
a66e8382
SG
37#include "libaout.h"
38#include "aout/aout64.h"
39#include "gdb-stabs.h"
d07734e3 40#include "buildsym.h"
51b80b00 41#include "complaints.h"
2e4964ad 42#include "demangle.h"
fe82872c 43#include "language.h"
d07734e3 44
9ddfb9eb
JK
45#include <ctype.h>
46
d07734e3
FF
47/* Ask stabsread.h to define the vars it normally declares `extern'. */
48#define EXTERN /**/
49#include "stabsread.h" /* Our own declarations */
50#undef EXTERN
51
e7177cc2
FF
52/* The routines that read and process a complete stabs for a C struct or
53 C++ class pass lists of data member fields and lists of member function
54 fields in an instance of a field_info structure, as defined below.
55 This is part of some reorganization of low level C++ support and is
56 expected to eventually go away... (FIXME) */
57
58struct field_info
59{
60 struct nextfield
61 {
62 struct nextfield *next;
1dfaef62
JK
63
64 /* This is the raw visibility from the stab. It is not checked
65 for being one of the visibilities we recognize, so code which
66 examines this field better be able to deal. */
e7177cc2 67 int visibility;
1dfaef62 68
e7177cc2
FF
69 struct field field;
70 } *list;
71 struct next_fnfieldlist
72 {
73 struct next_fnfieldlist *next;
74 struct fn_fieldlist fn_fieldlist;
75 } *fnlist;
76};
77
b607efe7
FF
78static void
79read_one_struct_field PARAMS ((struct field_info *, char **, char *,
80 struct type *, struct objfile *));
81
82static char *
cb74cc24 83get_substring PARAMS ((char **, int));
b607efe7 84
d07734e3
FF
85static struct type *
86dbx_alloc_type PARAMS ((int [2], struct objfile *));
87
ea753d03
JK
88static long read_huge_number PARAMS ((char **, int, int *));
89
2dd30c72 90static struct type *error_type PARAMS ((char **, struct objfile *));
d07734e3
FF
91
92static void
93patch_block_stabs PARAMS ((struct pending *, struct pending_stabs *,
94 struct objfile *));
95
96static void
97fix_common_block PARAMS ((struct symbol *, int));
98
ea753d03
JK
99static int
100read_type_number PARAMS ((char **, int *));
101
d07734e3
FF
102static struct type *
103read_range_type PARAMS ((char **, int [2], struct objfile *));
104
105static struct type *
106read_sun_builtin_type PARAMS ((char **, int [2], struct objfile *));
107
108static struct type *
109read_sun_floating_type PARAMS ((char **, int [2], struct objfile *));
110
111static struct type *
112read_enum_type PARAMS ((char **, struct type *, struct objfile *));
113
dd469789 114static struct type *
a387370d 115rs6000_builtin_type PARAMS ((int));
dd469789 116
e7177cc2
FF
117static int
118read_member_functions PARAMS ((struct field_info *, char **, struct type *,
119 struct objfile *));
120
121static int
122read_struct_fields PARAMS ((struct field_info *, char **, struct type *,
123 struct objfile *));
124
125static int
126read_baseclasses PARAMS ((struct field_info *, char **, struct type *,
127 struct objfile *));
128
129static int
130read_tilde_fields PARAMS ((struct field_info *, char **, struct type *,
131 struct objfile *));
132
133static int
134attach_fn_fields_to_type PARAMS ((struct field_info *, struct type *));
135
136static int
137attach_fields_to_type PARAMS ((struct field_info *, struct type *,
138 struct objfile *));
139
d07734e3
FF
140static struct type *
141read_struct_type PARAMS ((char **, struct type *, struct objfile *));
142
143static struct type *
144read_array_type PARAMS ((char **, struct type *, struct objfile *));
145
146static struct type **
147read_args PARAMS ((char **, int, struct objfile *));
148
ea753d03 149static int
e7177cc2
FF
150read_cpp_abbrev PARAMS ((struct field_info *, char **, struct type *,
151 struct objfile *));
152
00d93b6d
DP
153/* new functions added for cfront support */
154
00d93b6d
DP
155static int
156copy_cfront_struct_fields PARAMS ((struct field_info *, struct type *,
166d7e55 157 struct objfile *));
00d93b6d
DP
158
159static char *
160get_cfront_method_physname PARAMS ((char *));
161
162static int
163read_cfront_baseclasses PARAMS ((struct field_info *, char **,
166d7e55 164 struct type *, struct objfile *));
00d93b6d
DP
165
166static int
167read_cfront_static_fields PARAMS ((struct field_info *, char**,
166d7e55 168 struct type *, struct objfile *));
00d93b6d
DP
169static int
170read_cfront_member_functions PARAMS ((struct field_info *, char **,
166d7e55
DP
171 struct type *, struct objfile *));
172
00d93b6d
DP
173/* end new functions added for cfront support */
174
d719efc6
DP
175static void
176add_live_range PARAMS ((struct objfile *, struct symbol *,
177 CORE_ADDR, CORE_ADDR));
178
b84b9183 179static void
d719efc6
DP
180resolve_live_range PARAMS ((struct objfile *, struct symbol *, char *));
181
182static int
183process_reference PARAMS ((char **string));
184
185static CORE_ADDR
186ref_search_value PARAMS ((int refnum));
187
166d7e55
DP
188static void
189ref_init PARAMS ((void));
00d93b6d 190
b84b9183
JL
191static int
192resolve_symbol_reference PARAMS ((struct objfile *, struct symbol *, char *));
00d93b6d 193
d07734e3
FF
194static const char vptr_name[] = { '_','v','p','t','r',CPLUS_MARKER,'\0' };
195static const char vb_name[] = { '_','v','b',CPLUS_MARKER,'\0' };
196
197/* Define this as 1 if a pcc declaration of a char or short argument
198 gives the correct address. Otherwise assume pcc gives the
199 address of the corresponding int, which is not the same on a
200 big-endian machine. */
201
202#ifndef BELIEVE_PCC_PROMOTION
203#define BELIEVE_PCC_PROMOTION 0
204#endif
205
d07734e3
FF
206struct complaint invalid_cpp_abbrev_complaint =
207 {"invalid C++ abbreviation `%s'", 0, 0};
208
209struct complaint invalid_cpp_type_complaint =
210 {"C++ abbreviated type name unknown at symtab pos %d", 0, 0};
211
212struct complaint member_fn_complaint =
213 {"member function type missing, got '%c'", 0, 0};
214
215struct complaint const_vol_complaint =
216 {"const/volatile indicator missing, got '%c'", 0, 0};
217
218struct complaint error_type_complaint =
219 {"debug info mismatch between compiler and debugger", 0, 0};
220
221struct complaint invalid_member_complaint =
222 {"invalid (minimal) member type data format at symtab pos %d.", 0, 0};
223
224struct complaint range_type_base_complaint =
225 {"base type %d of range type is not defined", 0, 0};
226
227struct complaint reg_value_complaint =
0d14c7df 228 {"register number %d too large (max %d) in symbol %s", 0, 0};
d07734e3 229
2a021f21
JG
230struct complaint vtbl_notfound_complaint =
231 {"virtual function table pointer not found when defining class `%s'", 0, 0};
232
233struct complaint unrecognized_cplus_name_complaint =
234 {"Unknown C++ symbol name `%s'", 0, 0};
235
dd469789 236struct complaint rs6000_builtin_complaint =
a387370d 237 {"Unknown builtin type %d", 0, 0};
dd469789 238
02b40a19 239struct complaint unresolved_sym_chain_complaint =
b1027aa4 240 {"%s: common block `%s' from global_sym_chain unresolved", 0, 0};
02b40a19 241
e7177cc2
FF
242struct complaint stabs_general_complaint =
243 {"%s", 0, 0};
244
d07734e3
FF
245/* Make a list of forward references which haven't been defined. */
246
247static struct type **undef_types;
248static int undef_types_allocated;
249static int undef_types_length;
5e548861 250static struct symbol *current_symbol = NULL;
d07734e3 251
e7177cc2 252/* Check for and handle cretinous stabs symbol name continuation! */
2dd30c72 253#define STABS_CONTINUE(pp,objfile) \
e7177cc2 254 do { \
91a0575c 255 if (**(pp) == '\\' || (**(pp) == '?' && (*(pp))[1] == '\0')) \
2dd30c72 256 *(pp) = next_symbol_text (objfile); \
e7177cc2 257 } while (0)
d07734e3 258\f
25200748
JK
259/* FIXME: These probably should be our own types (like rs6000_builtin_type
260 has its own types) rather than builtin_type_*. */
261static struct type **os9k_type_vector[] = {
262 0,
263 &builtin_type_int,
264 &builtin_type_char,
265 &builtin_type_long,
266 &builtin_type_short,
267 &builtin_type_unsigned_char,
268 &builtin_type_unsigned_short,
269 &builtin_type_unsigned_long,
270 &builtin_type_unsigned_int,
271 &builtin_type_float,
272 &builtin_type_double,
273 &builtin_type_void,
274 &builtin_type_long_double
275};
276
277static void os9k_init_type_vector PARAMS ((struct type **));
278
279static void
280os9k_init_type_vector(tv)
281 struct type **tv;
282{
283 int i;
284 for (i=0; i<sizeof(os9k_type_vector)/sizeof(struct type **); i++)
285 tv[i] = (os9k_type_vector[i] == 0 ? 0 : *(os9k_type_vector[i]));
286}
287
d07734e3
FF
288/* Look up a dbx type-number pair. Return the address of the slot
289 where the type for that number-pair is stored.
290 The number-pair is in TYPENUMS.
291
292 This can be used for finding the type associated with that pair
293 or for associating a new type with the pair. */
294
295struct type **
296dbx_lookup_type (typenums)
297 int typenums[2];
298{
299 register int filenum = typenums[0];
300 register int index = typenums[1];
301 unsigned old_len;
302 register int real_filenum;
303 register struct header_file *f;
304 int f_orig_length;
305
306 if (filenum == -1) /* -1,-1 is for temporary types. */
307 return 0;
308
309 if (filenum < 0 || filenum >= n_this_object_header_files)
ea753d03
JK
310 {
311 static struct complaint msg = {"\
312Invalid symbol data: type number (%d,%d) out of range at symtab pos %d.",
313 0, 0};
314 complain (&msg, filenum, index, symnum);
315 goto error_return;
316 }
d07734e3
FF
317
318 if (filenum == 0)
319 {
a387370d
JG
320 if (index < 0)
321 {
322 /* Caller wants address of address of type. We think
323 that negative (rs6k builtin) types will never appear as
324 "lvalues", (nor should they), so we stuff the real type
325 pointer into a temp, and return its address. If referenced,
326 this will do the right thing. */
327 static struct type *temp_type;
328
329 temp_type = rs6000_builtin_type(index);
330 return &temp_type;
331 }
332
d07734e3
FF
333 /* Type is defined outside of header files.
334 Find it in this object file's type vector. */
335 if (index >= type_vector_length)
336 {
337 old_len = type_vector_length;
338 if (old_len == 0)
339 {
340 type_vector_length = INITIAL_TYPE_VECTOR_LENGTH;
341 type_vector = (struct type **)
6405302d 342 xmalloc (type_vector_length * sizeof (struct type *));
d07734e3
FF
343 }
344 while (index >= type_vector_length)
345 {
346 type_vector_length *= 2;
347 }
348 type_vector = (struct type **)
349 xrealloc ((char *) type_vector,
350 (type_vector_length * sizeof (struct type *)));
351 memset (&type_vector[old_len], 0,
352 (type_vector_length - old_len) * sizeof (struct type *));
25200748
JK
353
354 if (os9k_stabs)
355 /* Deal with OS9000 fundamental types. */
356 os9k_init_type_vector (type_vector);
d07734e3
FF
357 }
358 return (&type_vector[index]);
359 }
360 else
361 {
362 real_filenum = this_object_header_files[filenum];
363
7f8da359 364 if (real_filenum >= N_HEADER_FILES (current_objfile))
d07734e3 365 {
ea753d03
JK
366 struct type *temp_type;
367 struct type **temp_type_p;
368
369 warning ("GDB internal error: bad real_filenum");
370
371 error_return:
372 temp_type = init_type (TYPE_CODE_ERROR, 0, 0, NULL, NULL);
373 temp_type_p = (struct type **) xmalloc (sizeof (struct type *));
374 *temp_type_p = temp_type;
375 return temp_type_p;
d07734e3
FF
376 }
377
7f8da359 378 f = HEADER_FILES (current_objfile) + real_filenum;
d07734e3
FF
379
380 f_orig_length = f->length;
381 if (index >= f_orig_length)
382 {
383 while (index >= f->length)
384 {
385 f->length *= 2;
386 }
387 f->vector = (struct type **)
388 xrealloc ((char *) f->vector, f->length * sizeof (struct type *));
389 memset (&f->vector[f_orig_length], 0,
390 (f->length - f_orig_length) * sizeof (struct type *));
391 }
392 return (&f->vector[index]);
393 }
394}
395
396/* Make sure there is a type allocated for type numbers TYPENUMS
397 and return the type object.
398 This can create an empty (zeroed) type object.
399 TYPENUMS may be (-1, -1) to return a new type object that is not
400 put into the type vector, and so may not be referred to by number. */
401
402static struct type *
403dbx_alloc_type (typenums, objfile)
404 int typenums[2];
405 struct objfile *objfile;
406{
407 register struct type **type_addr;
408
409 if (typenums[0] == -1)
410 {
411 return (alloc_type (objfile));
412 }
413
414 type_addr = dbx_lookup_type (typenums);
415
416 /* If we are referring to a type not known at all yet,
417 allocate an empty type for it.
418 We will fill it in later if we find out how. */
419 if (*type_addr == 0)
420 {
421 *type_addr = alloc_type (objfile);
422 }
423
424 return (*type_addr);
425}
426
427/* for all the stabs in a given stab vector, build appropriate types
428 and fix their symbols in given symbol vector. */
429
430static void
431patch_block_stabs (symbols, stabs, objfile)
432 struct pending *symbols;
433 struct pending_stabs *stabs;
434 struct objfile *objfile;
435{
436 int ii;
437 char *name;
438 char *pp;
439 struct symbol *sym;
440
441 if (stabs)
442 {
443
444 /* for all the stab entries, find their corresponding symbols and
445 patch their types! */
446
447 for (ii = 0; ii < stabs->count; ++ii)
448 {
449 name = stabs->stab[ii];
450 pp = (char*) strchr (name, ':');
2fb58b98
KH
451 while (pp[1] == ':')
452 {
453 pp += 2;
454 pp = (char *)strchr(pp, ':');
455 }
d07734e3
FF
456 sym = find_symbol_in_list (symbols, name, pp-name);
457 if (!sym)
458 {
553e1862
JK
459 /* FIXME-maybe: it would be nice if we noticed whether
460 the variable was defined *anywhere*, not just whether
461 it is defined in this compilation unit. But neither
462 xlc or GCC seem to need such a definition, and until
463 we do psymtabs (so that the minimal symbols from all
464 compilation units are available now), I'm not sure
465 how to get the information. */
acdec954 466
0848ad1c
JK
467 /* On xcoff, if a global is defined and never referenced,
468 ld will remove it from the executable. There is then
469 a N_GSYM stab for it, but no regular (C_EXT) symbol. */
470 sym = (struct symbol *)
471 obstack_alloc (&objfile->symbol_obstack,
472 sizeof (struct symbol));
473
474 memset (sym, 0, sizeof (struct symbol));
475 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
476 SYMBOL_CLASS (sym) = LOC_OPTIMIZED_OUT;
477 SYMBOL_NAME (sym) =
ace4b8d7 478 obsavestring (name, pp - name, &objfile->symbol_obstack);
0848ad1c
JK
479 pp += 2;
480 if (*(pp-1) == 'F' || *(pp-1) == 'f')
481 {
482 /* I don't think the linker does this with functions,
483 so as far as I know this is never executed.
484 But it doesn't hurt to check. */
485 SYMBOL_TYPE (sym) =
486 lookup_function_type (read_type (&pp, objfile));
487 }
488 else
489 {
490 SYMBOL_TYPE (sym) = read_type (&pp, objfile);
491 }
492 add_symbol_to_list (sym, &global_symbols);
d07734e3
FF
493 }
494 else
495 {
496 pp += 2;
497 if (*(pp-1) == 'F' || *(pp-1) == 'f')
498 {
499 SYMBOL_TYPE (sym) =
500 lookup_function_type (read_type (&pp, objfile));
501 }
502 else
503 {
504 SYMBOL_TYPE (sym) = read_type (&pp, objfile);
505 }
506 }
507 }
508 }
509}
510
511\f
512/* Read a number by which a type is referred to in dbx data,
513 or perhaps read a pair (FILENUM, TYPENUM) in parentheses.
514 Just a single number N is equivalent to (0,N).
515 Return the two numbers by storing them in the vector TYPENUMS.
ea753d03 516 TYPENUMS will then be used as an argument to dbx_lookup_type.
d07734e3 517
ea753d03
JK
518 Returns 0 for success, -1 for error. */
519
520static int
d07734e3
FF
521read_type_number (pp, typenums)
522 register char **pp;
523 register int *typenums;
524{
ea753d03 525 int nbits;
d07734e3
FF
526 if (**pp == '(')
527 {
528 (*pp)++;
ea753d03
JK
529 typenums[0] = read_huge_number (pp, ',', &nbits);
530 if (nbits != 0) return -1;
531 typenums[1] = read_huge_number (pp, ')', &nbits);
532 if (nbits != 0) return -1;
d07734e3
FF
533 }
534 else
535 {
536 typenums[0] = 0;
ea753d03
JK
537 typenums[1] = read_huge_number (pp, 0, &nbits);
538 if (nbits != 0) return -1;
d07734e3 539 }
ea753d03 540 return 0;
d07734e3
FF
541}
542
543\f
28f851f9 544#if !defined (REG_STRUCT_HAS_ADDR)
84ad95c1 545#define REG_STRUCT_HAS_ADDR(gcc_p,type) 0
28f851f9
JK
546#endif
547
94f5a25f
DP
548#define VISIBILITY_PRIVATE '0' /* Stabs character for private field */
549#define VISIBILITY_PROTECTED '1' /* Stabs character for protected fld */
550#define VISIBILITY_PUBLIC '2' /* Stabs character for public field */
551#define VISIBILITY_IGNORE '9' /* Optimized out or zero length */
552
553#define CFRONT_VISIBILITY_PRIVATE '2' /* Stabs character for private field */
554#define CFRONT_VISIBILITY_PUBLIC '1' /* Stabs character for public field */
555
556/* This code added to support parsing of ARM/Cfront stabs strings */
557
cb74cc24
SS
558/* Get substring from string up to char c, advance string pointer past
559 suibstring. */
560
94f5a25f 561static char *
cb74cc24 562get_substring (p, c)
94f5a25f 563 char ** p;
cb74cc24 564 int c;
94f5a25f 565{
cb74cc24 566 char *str;
94f5a25f 567 str = *p;
cb74cc24 568 *p = strchr (*p, c);
94f5a25f
DP
569 if (*p)
570 {
571 **p = 0;
572 (*p)++;
573 }
574 else
575 str = 0;
576 return str;
577}
578
cb74cc24
SS
579/* Physname gets strcat'd onto sname in order to recreate the mangled
580 name (see funtion gdb_mangle_name in gdbtypes.c). For cfront, make
581 the physname look like that of g++ - take out the initial mangling
94f5a25f 582 eg: for sname="a" and fname="foo__1aFPFs_i" return "FPFs_i" */
cb74cc24 583
94f5a25f 584static char *
cb74cc24
SS
585get_cfront_method_physname (fname)
586 char *fname;
94f5a25f 587{
cb74cc24 588 int len = 0;
94f5a25f
DP
589 /* FIXME would like to make this generic for g++ too, but
590 that is already handled in read_member_funcctions */
591 char * p = fname;
592
593 /* search ahead to find the start of the mangled suffix */
594 if (*p == '_' && *(p+1)=='_') /* compiler generated; probably a ctor/dtor */
cb74cc24 595 p += 2;
d719efc6 596 while (p && (unsigned) ((p+1) - fname) < strlen (fname) && *(p+1) != '_')
cb74cc24
SS
597 p = strchr (p, '_');
598 if (!(p && *p == '_' && *(p+1) == '_'))
599 error ("Invalid mangled function name %s",fname);
600 p += 2; /* advance past '__' */
94f5a25f
DP
601
602 /* struct name length and name of type should come next; advance past it */
cb74cc24 603 while (isdigit (*p))
94f5a25f 604 {
cb74cc24 605 len = len * 10 + (*p - '0');
94f5a25f
DP
606 p++;
607 }
cb74cc24 608 p += len;
94f5a25f
DP
609
610 return p;
611}
612
613/* Read base classes within cfront class definition.
00d93b6d
DP
614 eg: A:ZcA;1@Bpub v2@Bvirpri;__ct__1AFv func__1AFv *sfunc__1AFv ;as__1A ;;
615 ^^^^^^^^^^^^^^^^^^
616
617 A:ZcA;;foopri__1AFv foopro__1AFv __ct__1AFv __ct__1AFRC1A foopub__1AFv ;;;
618 ^
619 */
cb74cc24 620
94f5a25f 621static int
cb74cc24 622read_cfront_baseclasses (fip, pp, type, objfile)
94f5a25f 623 struct field_info *fip;
cb74cc24 624 struct objfile *objfile;
94f5a25f 625 char ** pp;
cb74cc24 626 struct type *type;
94f5a25f 627{
94f5a25f
DP
628 static struct complaint msg_unknown = {"\
629 Unsupported token in stabs string %s.\n",
630 0, 0};
631 static struct complaint msg_notfound = {"\
632 Unable to find base type for %s.\n",
633 0, 0};
cb74cc24 634 int bnum = 0;
94f5a25f
DP
635 char * p;
636 int i;
637 struct nextfield *new;
638
cb74cc24 639 if (**pp == ';') /* no base classes; return */
94f5a25f 640 {
00d93b6d 641 ++(*pp);
3f550b59 642 return 1;
94f5a25f
DP
643 }
644
645 /* first count base classes so we can allocate space before parsing */
cb74cc24 646 for (p = *pp; p && *p && *p != ';'; p++)
94f5a25f 647 {
cb74cc24
SS
648 if (*p == ' ')
649 bnum++;
94f5a25f
DP
650 }
651 bnum++; /* add one more for last one */
652
653 /* now parse the base classes until we get to the start of the methods
00d93b6d
DP
654 (code extracted and munged from read_baseclasses) */
655 ALLOCATE_CPLUS_STRUCT_TYPE (type);
94f5a25f
DP
656 TYPE_N_BASECLASSES(type) = bnum;
657
658 /* allocate space */
659 {
660 int num_bytes = B_BYTES (TYPE_N_BASECLASSES (type));
661 char *pointer;
cb74cc24 662
94f5a25f
DP
663 pointer = (char *) TYPE_ALLOC (type, num_bytes);
664 TYPE_FIELD_VIRTUAL_BITS (type) = (B_TYPE *) pointer;
665 }
666 B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type), TYPE_N_BASECLASSES (type));
667
94f5a25f
DP
668 for (i = 0; i < TYPE_N_BASECLASSES (type); i++)
669 {
670 new = (struct nextfield *) xmalloc (sizeof (struct nextfield));
671 make_cleanup (free, new);
672 memset (new, 0, sizeof (struct nextfield));
673 new -> next = fip -> list;
674 fip -> list = new;
f7f37388 675 FIELD_BITSIZE (new->field) = 0; /* this should be an unpacked field! */
94f5a25f
DP
676
677 STABS_CONTINUE (pp, objfile);
678
679 /* virtual? eg: v2@Bvir */
680 if (**pp=='v')
681 {
682 SET_TYPE_FIELD_VIRTUAL (type, i);
683 ++(*pp);
684 }
685
686 /* access? eg: 2@Bvir */
687 /* Note: protected inheritance not supported in cfront */
688 switch (*(*pp)++)
689 {
690 case CFRONT_VISIBILITY_PRIVATE:
691 new -> visibility = VISIBILITY_PRIVATE;
692 break;
693 case CFRONT_VISIBILITY_PUBLIC:
694 new -> visibility = VISIBILITY_PUBLIC;
695 break;
696 default:
697 /* Bad visibility format. Complain and treat it as
698 public. */
699 {
700 static struct complaint msg = {
701 "Unknown visibility `%c' for baseclass", 0, 0};
702 complain (&msg, new -> visibility);
703 new -> visibility = VISIBILITY_PUBLIC;
704 }
705 }
706
707 /* "@" comes next - eg: @Bvir */
708 if (**pp!='@')
709 {
710 complain (&msg_unknown, *pp);
3f550b59 711 return 1;
94f5a25f
DP
712 }
713 ++(*pp);
714
715
716 /* Set the bit offset of the portion of the object corresponding
717 to this baseclass. Always zero in the absence of
718 multiple inheritance. */
719 /* Unable to read bit position from stabs;
720 Assuming no multiple inheritance for now FIXME! */
721 /* We may have read this in the structure definition;
722 now we should fixup the members to be the actual base classes */
f7f37388 723 FIELD_BITPOS (new->field) = 0;
94f5a25f
DP
724
725 /* Get the base class name and type */
726 {
727 char * bname; /* base class name */
728 struct symbol * bsym; /* base class */
729 char * p1, * p2;
d719efc6
DP
730 p1 = strchr (*pp,' ');
731 p2 = strchr (*pp,';');
94f5a25f 732 if (p1<p2)
d719efc6 733 bname = get_substring (pp,' ');
94f5a25f 734 else
d719efc6 735 bname = get_substring (pp,';');
94f5a25f
DP
736 if (!bname || !*bname)
737 {
738 complain (&msg_unknown, *pp);
3f550b59 739 return 1;
94f5a25f
DP
740 }
741 /* FIXME! attach base info to type */
742 bsym = lookup_symbol (bname, 0, STRUCT_NAMESPACE, 0, 0); /*demangled_name*/
743 if (bsym)
744 {
00d93b6d 745 new -> field.type = SYMBOL_TYPE(bsym);
94f5a25f
DP
746 new -> field.name = type_name_no_tag (new -> field.type);
747 }
748 else
749 {
750 complain (&msg_notfound, *pp);
3f550b59 751 return 1;
94f5a25f
DP
752 }
753 }
754
755 /* If more base classes to parse, loop again.
756 We ate the last ' ' or ';' in get_substring,
757 so on exit we will have skipped the trailing ';' */
758 /* if invalid, return 0; add code to detect - FIXME! */
759 }
760 return 1;
761}
762
00d93b6d
DP
763/* read cfront member functions.
764 pp points to string starting with list of functions
765 eg: A:ZcA;1@Bpub v2@Bvirpri;__ct__1AFv func__1AFv *sfunc__1AFv ;as__1A ;;
766 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
767 A:ZcA;;foopri__1AFv foopro__1AFv __ct__1AFv __ct__1AFRC1A foopub__1AFv ;;;
768 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
769*/
770
30b9d933 771static int
d719efc6 772read_cfront_member_functions (fip, pp, type, objfile)
94f5a25f
DP
773 struct field_info *fip;
774 char **pp;
775 struct type *type;
776 struct objfile *objfile;
d719efc6 777{
94f5a25f
DP
778 /* This code extracted from read_member_functions
779 so as to do the similar thing for our funcs */
780
781 int nfn_fields = 0;
782 int length = 0;
783 /* Total number of member functions defined in this class. If the class
784 defines two `f' functions, and one `g' function, then this will have
785 the value 3. */
786 int total_length = 0;
787 int i;
788 struct next_fnfield
789 {
790 struct next_fnfield *next;
791 struct fn_field fn_field;
792 } *sublist;
793 struct type *look_ahead_type;
794 struct next_fnfieldlist *new_fnlist;
795 struct next_fnfield *new_sublist;
796 char *main_fn_name;
797 char * fname;
d719efc6 798 struct symbol * ref_func = 0;
94f5a25f 799
d719efc6
DP
800 /* Process each list until we find the end of the member functions.
801 eg: p = "__ct__1AFv foo__1AFv ;;;" */
94f5a25f 802
94f5a25f 803 STABS_CONTINUE (pp, objfile); /* handle \\ */
d719efc6
DP
804
805 while (**pp != ';' && (fname = get_substring (pp, ' '), fname))
94f5a25f 806 {
d719efc6
DP
807 int is_static = 0;
808 int sublist_count = 0;
94f5a25f 809 char * pname;
d719efc6 810 if (fname[0] == '*') /* static member */
94f5a25f
DP
811 {
812 is_static=1;
813 sublist_count++;
814 fname++;
815 }
d719efc6 816 ref_func = lookup_symbol (fname, 0, VAR_NAMESPACE, 0, 0); /* demangled name */
94f5a25f
DP
817 if (!ref_func)
818 {
819 static struct complaint msg = {"\
820 Unable to find function symbol for %s\n",
821 0, 0};
822 complain (&msg, fname);
823 continue;
824 }
825 sublist = NULL;
826 look_ahead_type = NULL;
827 length = 0;
828
829 new_fnlist = (struct next_fnfieldlist *)
830 xmalloc (sizeof (struct next_fnfieldlist));
831 make_cleanup (free, new_fnlist);
832 memset (new_fnlist, 0, sizeof (struct next_fnfieldlist));
833
834 /* The following is code to work around cfront generated stabs.
835 The stabs contains full mangled name for each field.
836 We try to demangle the name and extract the field name out of it. */
837 {
838 char *dem, *dem_p, *dem_args;
839 int dem_len;
840 dem = cplus_demangle (fname, DMGL_ANSI | DMGL_PARAMS);
841 if (dem != NULL)
842 {
843 dem_p = strrchr (dem, ':');
d719efc6 844 if (dem_p != 0 && *(dem_p-1) == ':')
94f5a25f
DP
845 dem_p++;
846 /* get rid of args */
847 dem_args = strchr (dem_p, '(');
848 if (dem_args == NULL)
d719efc6
DP
849 dem_len = strlen (dem_p);
850 else
851 dem_len = dem_args - dem_p;
852 main_fn_name =
94f5a25f 853 obsavestring (dem_p, dem_len, &objfile -> type_obstack);
d719efc6
DP
854 }
855 else
856 {
857 main_fn_name =
858 obsavestring (fname, strlen (fname), &objfile -> type_obstack);
859 }
860 } /* end of code for cfront work around */
861
862 new_fnlist -> fn_fieldlist.name = main_fn_name;
94f5a25f 863
d719efc6
DP
864 /*-------------------------------------------------*/
865 /* Set up the sublists
866 Sublists are stuff like args, static, visibility, etc.
867 so in ARM, we have to set that info some other way.
868 Multiple sublists happen if overloading
869 eg: foo::26=##1;:;2A.;
870 In g++, we'd loop here thru all the sublists... */
871
872 new_sublist =
94f5a25f 873 (struct next_fnfield *) xmalloc (sizeof (struct next_fnfield));
d719efc6
DP
874 make_cleanup (free, new_sublist);
875 memset (new_sublist, 0, sizeof (struct next_fnfield));
94f5a25f 876
d719efc6
DP
877 /* eat 1; from :;2A.; */
878 new_sublist -> fn_field.type = SYMBOL_TYPE(ref_func); /* normally takes a read_type */
879 /* Make this type look like a method stub for gdb */
880 TYPE_FLAGS (new_sublist -> fn_field.type) |= TYPE_FLAG_STUB;
881 TYPE_CODE (new_sublist -> fn_field.type) = TYPE_CODE_METHOD;
882
883 /* If this is just a stub, then we don't have the real name here. */
884 if (TYPE_FLAGS (new_sublist -> fn_field.type) & TYPE_FLAG_STUB)
885 {
886 if (!TYPE_DOMAIN_TYPE (new_sublist -> fn_field.type))
887 TYPE_DOMAIN_TYPE (new_sublist -> fn_field.type) = type;
888 new_sublist -> fn_field.is_stub = 1;
889 }
890
891 /* physname used later in mangling; eg PFs_i,5 for foo__1aFPFs_i
892 physname gets strcat'd in order to recreate the onto mangled name */
893 pname = get_cfront_method_physname (fname);
894 new_sublist -> fn_field.physname = savestring (pname, strlen (pname));
895
94f5a25f 896
d719efc6
DP
897 /* Set this member function's visibility fields.
898 Unable to distinguish access from stabs definition!
899 Assuming public for now. FIXME!
900 (for private, set new_sublist->fn_field.is_private = 1,
901 for public, set new_sublist->fn_field.is_protected = 1) */
94f5a25f 902
d719efc6
DP
903 /* Unable to distinguish const/volatile from stabs definition!
904 Assuming normal for now. FIXME! */
3f550b59 905
d719efc6
DP
906 new_sublist -> fn_field.is_const = 0;
907 new_sublist -> fn_field.is_volatile = 0; /* volatile not implemented in cfront */
94f5a25f 908
d719efc6
DP
909 /* Set virtual/static function info
910 How to get vtable offsets ?
911 Assuming normal for now FIXME!!
912 For vtables, figure out from whence this virtual function came.
913 It may belong to virtual function table of
914 one of its baseclasses.
915 set:
916 new_sublist -> fn_field.voffset = vtable offset,
917 new_sublist -> fn_field.fcontext = look_ahead_type;
918 where look_ahead_type is type of baseclass */
919 if (is_static)
920 new_sublist -> fn_field.voffset = VOFFSET_STATIC;
921 else /* normal member function. */
922 new_sublist -> fn_field.voffset = 0;
923 new_sublist -> fn_field.fcontext = 0;
94f5a25f
DP
924
925
d719efc6
DP
926 /* Prepare new sublist */
927 new_sublist -> next = sublist;
928 sublist = new_sublist;
929 length++;
930
931 /* In g++, we loop thu sublists - now we set from functions. */
932 new_fnlist -> fn_fieldlist.fn_fields = (struct fn_field *)
933 obstack_alloc (&objfile -> type_obstack,
934 sizeof (struct fn_field) * length);
935 memset (new_fnlist -> fn_fieldlist.fn_fields, 0,
936 sizeof (struct fn_field) * length);
937 for (i = length; (i--, sublist); sublist = sublist -> next)
94f5a25f 938 {
d719efc6 939 new_fnlist -> fn_fieldlist.fn_fields[i] = sublist -> fn_field;
94f5a25f 940 }
d719efc6
DP
941
942 new_fnlist -> fn_fieldlist.length = length;
943 new_fnlist -> next = fip -> fnlist;
944 fip -> fnlist = new_fnlist;
945 nfn_fields++;
946 total_length += length;
947 STABS_CONTINUE (pp, objfile); /* handle \\ */
948 } /* end of loop */
94f5a25f 949
d719efc6
DP
950 if (nfn_fields)
951 {
952 /* type should already have space */
953 TYPE_FN_FIELDLISTS (type) = (struct fn_fieldlist *)
954 TYPE_ALLOC (type, sizeof (struct fn_fieldlist) * nfn_fields);
955 memset (TYPE_FN_FIELDLISTS (type), 0,
956 sizeof (struct fn_fieldlist) * nfn_fields);
957 TYPE_NFN_FIELDS (type) = nfn_fields;
958 TYPE_NFN_FIELDS_TOTAL (type) = total_length;
959 }
94f5a25f 960
d719efc6
DP
961 /* end of scope for reading member func */
962
963 /* eg: ";;" */
964
965 /* Skip trailing ';' and bump count of number of fields seen */
966 if (**pp == ';')
967 (*pp)++;
968 else
969 return 0;
94f5a25f
DP
970 return 1;
971}
972
973/* This routine fixes up partial cfront types that were created
974 while parsing the stabs. The main need for this function is
975 to add information such as methods to classes.
976 Examples of "p": "sA;;__ct__1AFv foo__1AFv ;;;" */
d719efc6
DP
977int
978resolve_cfront_continuation (objfile, sym, p)
94f5a25f
DP
979 struct objfile * objfile;
980 struct symbol * sym;
981 char * p;
982{
983 struct symbol * ref_sym=0;
984 char * sname;
985 /* snarfed from read_struct_type */
986 struct field_info fi;
94f5a25f
DP
987 struct type *type;
988 struct cleanup *back_to;
989
d719efc6 990 /* Need to make sure that fi isn't gunna conflict with struct
94f5a25f
DP
991 in case struct already had some fnfs */
992 fi.list = NULL;
993 fi.fnlist = NULL;
994 back_to = make_cleanup (null_cleanup, 0);
995
d719efc6 996 /* We only accept structs, classes and unions at the moment.
94f5a25f
DP
997 Other continuation types include t (typedef), r (long dbl), ...
998 We may want to add support for them as well;
999 right now they are handled by duplicating the symbol information
1000 into the type information (see define_symbol) */
1001 if (*p != 's' /* structs */
1002 && *p != 'c' /* class */
1003 && *p != 'u') /* union */
d719efc6 1004 return 0; /* only handle C++ types */
94f5a25f
DP
1005 p++;
1006
d719efc6 1007 /* Get symbol typs name and validate
94f5a25f 1008 eg: p = "A;;__ct__1AFv foo__1AFv ;;;" */
d719efc6
DP
1009 sname = get_substring (&p, ';');
1010 if (!sname || strcmp (sname, SYMBOL_NAME(sym)))
1011 error ("Internal error: base symbol type name does not match\n");
94f5a25f 1012
d719efc6
DP
1013 /* Find symbol's internal gdb reference using demangled_name.
1014 This is the real sym that we want;
94f5a25f 1015 sym was a temp hack to make debugger happy */
d719efc6 1016 ref_sym = lookup_symbol (SYMBOL_NAME(sym), 0, STRUCT_NAMESPACE, 0, 0);
94f5a25f
DP
1017 type = SYMBOL_TYPE(ref_sym);
1018
1019
1020 /* Now read the baseclasses, if any, read the regular C struct or C++
1021 class member fields, attach the fields to the type, read the C++
1022 member functions, attach them to the type, and then read any tilde
1023 field (baseclass specifier for the class holding the main vtable). */
1024
1025 if (!read_cfront_baseclasses (&fi, &p, type, objfile)
1026 /* g++ does this next, but cfront already did this:
1027 || !read_struct_fields (&fi, &p, type, objfile) */
00d93b6d 1028 || !copy_cfront_struct_fields (&fi, type, objfile)
94f5a25f 1029 || !read_cfront_member_functions (&fi, &p, type, objfile)
d719efc6 1030 || !read_cfront_static_fields (&fi, &p, type, objfile)
00d93b6d 1031 || !attach_fields_to_type (&fi, type, objfile)
94f5a25f
DP
1032 || !attach_fn_fields_to_type (&fi, type)
1033 /* g++ does this next, but cfront doesn't seem to have this:
1034 || !read_tilde_fields (&fi, &p, type, objfile) */
1035 )
1036 {
1037 type = error_type (&p, objfile);
1038 }
1039
1040 do_cleanups (back_to);
d719efc6 1041 return 0;
94f5a25f
DP
1042}
1043/* End of code added to support parsing of ARM/Cfront stabs strings */
1044
1045
b84b9183
JL
1046/* This routine fixes up symbol references/aliases to point to the original
1047 symbol definition. */
1048
1049static int
d719efc6 1050resolve_symbol_reference (objfile, sym, p)
b84b9183
JL
1051 struct objfile *objfile;
1052 struct symbol *sym;
1053 char *p;
d719efc6
DP
1054{
1055 int refnum;
b84b9183
JL
1056 struct symbol *ref_sym=0;
1057 struct alias_list *alias;
d719efc6 1058
b84b9183
JL
1059 /* If this is not a symbol reference return now. */
1060 if (*p != '#')
d719efc6
DP
1061 return 0;
1062
1063 /* Use "#<num>" as the name; we'll fix the name later.
1064 We stored the original symbol name as "#<id>=<name>"
1065 so we can now search for "#<id>" to resolving the reference.
1066 We'll fix the names later by removing the "#<id>" or "#<id>=" */
1067
1068 /*---------------------------------------------------------*/
1069 /* Get the reference id number, and
1070 advance p past the names so we can parse the rest.
1071 eg: id=2 for p : "2=", "2=z:r(0,1)" "2:r(0,1);l(#5,#6),l(#7,#4)" */
1072 /*---------------------------------------------------------*/
1073
1074 /* This gets reference name from string. sym may not have a name. */
b84b9183
JL
1075
1076 /* Get the reference number associated with the reference id in the
1077 gdb stab string. From that reference number, get the main/primary
1078 symbol for this alias. */
d719efc6
DP
1079 refnum = process_reference (&p);
1080 ref_sym = ref_search (refnum);
1081 if (!ref_sym)
1082 error ("error: symbol for reference not found.\n");
1083
b84b9183 1084
d719efc6
DP
1085 /* Parse the stab of the referencing symbol
1086 now that we have the referenced symbol.
1087 Add it as a new symbol and a link back to the referenced symbol.
1088 eg: p : "=", "=z:r(0,1)" ":r(0,1);l(#5,#6),l(#7,#4)" */
1089
1090
1091 /* If the stab symbol table and string contain:
1092 RSYM 0 5 00000000 868 #15=z:r(0,1)
1093 LBRAC 0 0 00000000 899 #5=
1094 SLINE 0 16 00000003 923 #6=
1095 Then the same symbols can be later referenced by:
1096 RSYM 0 5 00000000 927 #15:r(0,1);l(#5,#6)
1097 This is used in live range splitting to:
1098 1) specify that a symbol (#15) is actually just a new storage
1099 class for a symbol (#15=z) which was previously defined.
1100 2) specify that the beginning and ending ranges for a symbol
1101 (#15) are the values of the beginning (#5) and ending (#6)
1102 symbols. */
1103
1104 /* Read number as reference id.
1105 eg: p : "=", "=z:r(0,1)" ":r(0,1);l(#5,#6),l(#7,#4)" */
1106 /* FIXME! Might I want to use SYMBOL_CLASS (sym) = LOC_OPTIMIZED_OUT;
1107 in case of "l(0,0)"? */
1108
1109 /*--------------------------------------------------*/
1110 /* Add this symbol to the reference list. */
1111 /*--------------------------------------------------*/
b84b9183
JL
1112
1113 alias = (struct alias_list *) obstack_alloc (&objfile->type_obstack,
1114 sizeof (struct alias_list));
1115 if (!alias)
1116 error ("Unable to allocate alias list memory");
1117
1118 alias->next = 0;
1119 alias->sym = sym;
1120
1121 if (!SYMBOL_ALIASES (ref_sym))
1122 {
1123 SYMBOL_ALIASES (ref_sym) = alias;
1124 }
1125 else
1126 {
1127 struct alias_list *temp;
1128
1129 /* Get to the end of the list. */
1130 for (temp = SYMBOL_ALIASES (ref_sym);
1131 temp->next;
1132 temp = temp->next);
1133 ;
1134 temp->next = alias;
1135 }
d719efc6
DP
1136
1137 /* Want to fix up name so that other functions (eg. valops)
1138 will correctly print the name.
1139 Don't add_symbol_to_list so that lookup_symbol won't find it.
1140 nope... needed for fixups. */
1141 SYMBOL_NAME (sym) = SYMBOL_NAME (ref_sym);
1142
1143 /* Done! */
d719efc6
DP
1144 return 0;
1145}
1146
326ca4ee
JL
1147#define MAX_CHUNK_REFS 100
1148#define REF_CHUNK_SIZE \
1149 MAX_CHUNK_REFS * sizeof (struct ref_map_s)
1150#define REF_MAP_SIZE(ref_chunk) \
1151 ref_chunk * REF_CHUNK_SIZE
1152
d719efc6
DP
1153/* Structure for storing pointers to reference definitions for fast lookup
1154 during "process_later". */
d719efc6
DP
1155static struct ref_map_s
1156{
1157 char *stabs;
1158 CORE_ADDR value;
1159 struct symbol *sym;
326ca4ee
JL
1160} *ref_map;
1161
1162/* Ptr to free cell in chunk's linked list. */
1163static int ref_count = 0;
1164
1165/* Number of chunks malloced. */
1166static int ref_chunk = 0;
d719efc6
DP
1167
1168/* Initialize our list of references.
b84b9183 1169 This should be called before any symbol table is read. */
326ca4ee 1170
166d7e55
DP
1171static void
1172ref_init ()
d719efc6
DP
1173{
1174 ref_count = 0;
326ca4ee 1175 ref_chunk = 0;
d719efc6
DP
1176}
1177
1178/* Create array of pointers mapping refids to symbols and stab strings.
1179 Add pointers to reference definition symbols and/or their values as we
1180 find them, using their reference numbers as our index.
1181 These will be used later when we resolve references. */
b303e105
JL
1182void
1183ref_add (refnum, sym, stabs, value)
1184 int refnum;
1185 struct symbol *sym;
1186 char *stabs;
1187 CORE_ADDR value;
d719efc6
DP
1188{
1189 if (ref_count == 0)
1190 ref_init ();
1191 if (refnum >= ref_count)
1192 ref_count = refnum + 1;
326ca4ee
JL
1193 if (ref_count > ref_chunk * MAX_CHUNK_REFS)
1194 {
1195 int new_slots = ref_count - ref_chunk * MAX_CHUNK_REFS;
1196 int new_chunks = new_slots / MAX_CHUNK_REFS + 1;
74d6ac44
JM
1197 ref_map = (struct ref_map_s *)
1198 xrealloc (ref_map, REF_MAP_SIZE(ref_chunk + new_chunks));
326ca4ee
JL
1199 if (!ref_map)
1200 error ("no more free slots in chain\n");
1201 memset (ref_map + REF_MAP_SIZE(ref_chunk), 0, new_chunks * REF_CHUNK_SIZE);
1202 ref_chunk += new_chunks;
1203 }
d719efc6
DP
1204 ref_map[refnum].stabs = stabs;
1205 ref_map[refnum].sym = sym;
1206 ref_map[refnum].value = value;
1207}
1208
b84b9183 1209/* Return defined sym for the reference REFNUM. */
d719efc6 1210struct symbol *
b303e105
JL
1211ref_search (refnum)
1212 int refnum;
d719efc6
DP
1213{
1214 if (refnum < 0 || refnum > ref_count)
1215 return 0;
1216 return ref_map[refnum].sym;
1217}
1218
b84b9183
JL
1219/* Return value for the reference REFNUM. */
1220
166d7e55 1221static CORE_ADDR
b303e105
JL
1222ref_search_value (refnum)
1223 int refnum;
d719efc6
DP
1224{
1225 if (refnum < 0 || refnum > ref_count)
1226 return 0;
1227 return ref_map[refnum].value;
1228}
1229
b84b9183
JL
1230/* Parse a reference id in STRING and return the resulting
1231 reference number. Move STRING beyond the reference id. */
d719efc6
DP
1232
1233static int
b303e105
JL
1234process_reference (string)
1235 char **string;
d719efc6
DP
1236{
1237 char *p;
1238 int refnum = 0;
1239
1240 if (**string != '#')
1241 return 0;
1242
b84b9183
JL
1243 /* Advance beyond the initial '#'. */
1244 p = *string + 1;
1245
d719efc6 1246 /* Read number as reference id. */
d719efc6
DP
1247 while (*p && isdigit (*p))
1248 {
1249 refnum = refnum * 10 + *p - '0';
1250 p++;
1251 }
1252 *string = p;
1253 return refnum;
1254}
1255
b84b9183
JL
1256/* If STRING defines a reference, store away a pointer to the reference
1257 definition for later use. Return the reference number. */
1258
d719efc6 1259int
b303e105
JL
1260symbol_reference_defined (string)
1261 char **string;
d719efc6
DP
1262{
1263 char *p = *string;
1264 int refnum = 0;
1265
1266 refnum = process_reference (&p);
1267
1268 /* Defining symbols end in '=' */
1269 if (*p == '=')
1270 {
1271 /* Symbol is being defined here. */
d719efc6
DP
1272 *string = p + 1;
1273 return refnum;
1274 }
1275 else
1276 {
1277 /* Must be a reference. Either the symbol has already been defined,
1278 or this is a forward reference to it. */
d719efc6 1279 *string = p;
cdecdcc4 1280 return -1;
d719efc6
DP
1281 }
1282}
1283
d07734e3
FF
1284/* ARGSUSED */
1285struct symbol *
1286define_symbol (valu, string, desc, type, objfile)
cef4c2e7 1287 CORE_ADDR valu;
d07734e3
FF
1288 char *string;
1289 int desc;
1290 int type;
1291 struct objfile *objfile;
1292{
1293 register struct symbol *sym;
1294 char *p = (char *) strchr (string, ':');
1295 int deftype;
1296 int synonym = 0;
1297 register int i;
d07734e3
FF
1298
1299 /* We would like to eliminate nameless symbols, but keep their types.
1300 E.g. stab entry ":t10=*2" should produce a type 10, which is a pointer
94daba7f 1301 to type 2, but, should not create a symbol to address that type. Since
d07734e3
FF
1302 the symbol will be nameless, there is no way any user can refer to it. */
1303
1304 int nameless;
1305
1306 /* Ignore syms with empty names. */
1307 if (string[0] == 0)
1308 return 0;
1309
1310 /* Ignore old-style symbols from cc -go */
1311 if (p == 0)
1312 return 0;
1313
2fb58b98
KH
1314 while (p[1] == ':')
1315 {
1316 p += 2;
d719efc6 1317 p = strchr (p, ':');
2fb58b98
KH
1318 }
1319
d07734e3 1320 /* If a nameless stab entry, all we need is the type, not the symbol.
94daba7f
FF
1321 e.g. ":t10=*2" or a nameless enum like " :T16=ered:0,green:1,blue:2,;" */
1322 nameless = (p == string || ((string[0] == ' ') && (string[1] == ':')));
d07734e3 1323
5e548861 1324 current_symbol = sym = (struct symbol *)
d07734e3 1325 obstack_alloc (&objfile -> symbol_obstack, sizeof (struct symbol));
c02a37ea 1326 memset (sym, 0, sizeof (struct symbol));
d07734e3 1327
a66e8382
SG
1328 switch (type & N_TYPE)
1329 {
1330 case N_TEXT:
1331 SYMBOL_SECTION(sym) = SECT_OFF_TEXT;
1332 break;
1333 case N_DATA:
1334 SYMBOL_SECTION(sym) = SECT_OFF_DATA;
1335 break;
1336 case N_BSS:
1337 SYMBOL_SECTION(sym) = SECT_OFF_BSS;
1338 break;
1339 }
1340
d07734e3
FF
1341 if (processing_gcc_compilation)
1342 {
1343 /* GCC 2.x puts the line number in desc. SunOS apparently puts in the
1344 number of bytes occupied by a type or object, which we ignore. */
1345 SYMBOL_LINE(sym) = desc;
1346 }
1347 else
1348 {
1349 SYMBOL_LINE(sym) = 0; /* unknown */
1350 }
1351
81afee37 1352 if (is_cplus_marker (string[0]))
d07734e3
FF
1353 {
1354 /* Special GNU C++ names. */
1355 switch (string[1])
1356 {
1357 case 't':
1358 SYMBOL_NAME (sym) = obsavestring ("this", strlen ("this"),
1359 &objfile -> symbol_obstack);
1360 break;
1361
1362 case 'v': /* $vtbl_ptr_type */
1363 /* Was: SYMBOL_NAME (sym) = "vptr"; */
1364 goto normal;
1365
1366 case 'e':
1367 SYMBOL_NAME (sym) = obsavestring ("eh_throw", strlen ("eh_throw"),
1368 &objfile -> symbol_obstack);
1369 break;
1370
1371 case '_':
1372 /* This was an anonymous type that was never fixed up. */
1373 goto normal;
1374
b9e58503
PS
1375#ifdef STATIC_TRANSFORM_NAME
1376 case 'X':
1377 /* SunPRO (3.0 at least) static variable encoding. */
1378 goto normal;
1379#endif
1380
d07734e3 1381 default:
b646b438 1382 complain (&unrecognized_cplus_name_complaint, string);
2a021f21 1383 goto normal; /* Do *something* with it */
d07734e3
FF
1384 }
1385 }
d719efc6
DP
1386 else if (string[0] == '#')
1387 {
1388 /* Special GNU C extension for referencing symbols. */
1389 char *s;
1390 int refnum, nlen;
1391
b84b9183
JL
1392 /* If STRING defines a new reference id, then add it to the
1393 reference map. Else it must be referring to a previously
1394 defined symbol, so add it to the alias list of the previously
1395 defined symbol. */
d719efc6 1396 s = string;
cdecdcc4
JL
1397 refnum = symbol_reference_defined (&s);
1398 if (refnum >= 0)
b84b9183 1399 ref_add (refnum, sym, string, SYMBOL_VALUE (sym));
d719efc6 1400 else
b84b9183 1401 resolve_symbol_reference (objfile, sym, string);
d719efc6 1402
b84b9183
JL
1403 /* S..P contains the name of the symbol. We need to store
1404 the correct name into SYMBOL_NAME. */
d719efc6 1405 nlen = p - s;
cdecdcc4 1406 if (refnum >= 0)
b84b9183
JL
1407 {
1408 if (nlen > 0)
1409 {
1410 SYMBOL_NAME (sym) = (char *)
1411 obstack_alloc (&objfile -> symbol_obstack, nlen);
1412 strncpy (SYMBOL_NAME (sym), s, nlen);
1413 SYMBOL_NAME (sym)[nlen] = '\0';
1414 SYMBOL_INIT_DEMANGLED_NAME (sym, &objfile->symbol_obstack);
1415 }
1416 else
1417 /* FIXME! Want SYMBOL_NAME (sym) = 0;
1418 Get error if leave name 0. So give it something. */
1419 {
1420 nlen = p - string;
1421 SYMBOL_NAME (sym) = (char *)
1422 obstack_alloc (&objfile -> symbol_obstack, nlen);
1423 strncpy (SYMBOL_NAME (sym), string, nlen);
1424 SYMBOL_NAME (sym)[nlen] = '\0';
1425 SYMBOL_INIT_DEMANGLED_NAME (sym, &objfile->symbol_obstack);
1426 }
1427 }
1428 /* Advance STRING beyond the reference id. */
d719efc6
DP
1429 string = s;
1430 }
d07734e3
FF
1431 else
1432 {
1433 normal:
2e4964ad 1434 SYMBOL_LANGUAGE (sym) = current_subfile -> language;
d07734e3
FF
1435 SYMBOL_NAME (sym) = (char *)
1436 obstack_alloc (&objfile -> symbol_obstack, ((p - string) + 1));
ade40d31 1437 /* Open-coded memcpy--saves function call time. */
2e4964ad
FF
1438 /* FIXME: Does it really? Try replacing with simple strcpy and
1439 try it on an executable with a large symbol table. */
ade40d31
RP
1440 /* FIXME: considering that gcc can open code memcpy anyway, I
1441 doubt it. xoxorich. */
d07734e3
FF
1442 {
1443 register char *p1 = string;
1444 register char *p2 = SYMBOL_NAME (sym);
1445 while (p1 != p)
1446 {
1447 *p2++ = *p1++;
1448 }
1449 *p2++ = '\0';
1450 }
2e4964ad
FF
1451
1452 /* If this symbol is from a C++ compilation, then attempt to cache the
1453 demangled form for future reference. This is a typical time versus
1454 space tradeoff, that was decided in favor of time because it sped up
1455 C++ symbol lookups by a factor of about 20. */
1456
7532cf10 1457 SYMBOL_INIT_DEMANGLED_NAME (sym, &objfile->symbol_obstack);
d07734e3
FF
1458 }
1459 p++;
9b280a7f 1460
d07734e3 1461 /* Determine the type of name being defined. */
ea753d03
JK
1462#if 0
1463 /* Getting GDB to correctly skip the symbol on an undefined symbol
1464 descriptor and not ever dump core is a very dodgy proposition if
1465 we do things this way. I say the acorn RISC machine can just
1466 fix their compiler. */
d07734e3
FF
1467 /* The Acorn RISC machine's compiler can put out locals that don't
1468 start with "234=" or "(3,4)=", so assume anything other than the
1469 deftypes we know how to handle is a local. */
d07734e3 1470 if (!strchr ("cfFGpPrStTvVXCR", *p))
ea753d03
JK
1471#else
1472 if (isdigit (*p) || *p == '(' || *p == '-')
1473#endif
d07734e3
FF
1474 deftype = 'l';
1475 else
1476 deftype = *p++;
1477
59d69506 1478 switch (deftype)
d07734e3 1479 {
59d69506
JK
1480 case 'c':
1481 /* c is a special case, not followed by a type-number.
1482 SYMBOL:c=iVALUE for an integer constant symbol.
1483 SYMBOL:c=rVALUE for a floating constant symbol.
1484 SYMBOL:c=eTYPE,INTVALUE for an enum constant symbol.
1485 e.g. "b:c=e6,0" for "const b = blob1"
1486 (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */
ea753d03
JK
1487 if (*p != '=')
1488 {
1489 SYMBOL_CLASS (sym) = LOC_CONST;
2dd30c72 1490 SYMBOL_TYPE (sym) = error_type (&p, objfile);
ea753d03
JK
1491 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
1492 add_symbol_to_list (sym, &file_symbols);
1493 return sym;
1494 }
1495 ++p;
d07734e3
FF
1496 switch (*p++)
1497 {
1498 case 'r':
1499 {
1500 double d = atof (p);
1501 char *dbl_valu;
1502
bf5c0d64
JK
1503 /* FIXME-if-picky-about-floating-accuracy: Should be using
1504 target arithmetic to get the value. real.c in GCC
1505 probably has the necessary code. */
1506
f52bde21
JK
1507 /* FIXME: lookup_fundamental_type is a hack. We should be
1508 creating a type especially for the type of float constants.
bf5c0d64 1509 Problem is, what type should it be?
f52bde21
JK
1510
1511 Also, what should the name of this type be? Should we
1512 be using 'S' constants (see stabs.texinfo) instead? */
1513
d07734e3
FF
1514 SYMBOL_TYPE (sym) = lookup_fundamental_type (objfile,
1515 FT_DBL_PREC_FLOAT);
1516 dbl_valu = (char *)
bf5c0d64
JK
1517 obstack_alloc (&objfile -> symbol_obstack,
1518 TYPE_LENGTH (SYMBOL_TYPE (sym)));
73edb321 1519 store_floating (dbl_valu, TYPE_LENGTH (SYMBOL_TYPE (sym)), d);
d07734e3
FF
1520 SYMBOL_VALUE_BYTES (sym) = dbl_valu;
1521 SYMBOL_CLASS (sym) = LOC_CONST_BYTES;
1522 }
1523 break;
1524 case 'i':
1525 {
f52bde21
JK
1526 /* Defining integer constants this way is kind of silly,
1527 since 'e' constants allows the compiler to give not
1528 only the value, but the type as well. C has at least
1529 int, long, unsigned int, and long long as constant
1530 types; other languages probably should have at least
1531 unsigned as well as signed constants. */
1532
1533 /* We just need one int constant type for all objfiles.
1534 It doesn't depend on languages or anything (arguably its
1535 name should be a language-specific name for a type of
1536 that size, but I'm inclined to say that if the compiler
1537 wants a nice name for the type, it can use 'e'). */
1538 static struct type *int_const_type;
1539
1540 /* Yes, this is as long as a *host* int. That is because we
1541 use atoi. */
1542 if (int_const_type == NULL)
1543 int_const_type =
1544 init_type (TYPE_CODE_INT,
1545 sizeof (int) * HOST_CHAR_BIT / TARGET_CHAR_BIT, 0,
1546 "integer constant",
1547 (struct objfile *)NULL);
1548 SYMBOL_TYPE (sym) = int_const_type;
d07734e3
FF
1549 SYMBOL_VALUE (sym) = atoi (p);
1550 SYMBOL_CLASS (sym) = LOC_CONST;
1551 }
1552 break;
1553 case 'e':
f52bde21
JK
1554 /* SYMBOL:c=eTYPE,INTVALUE for a constant symbol whose value
1555 can be represented as integral.
d07734e3
FF
1556 e.g. "b:c=e6,0" for "const b = blob1"
1557 (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */
1558 {
d07734e3 1559 SYMBOL_CLASS (sym) = LOC_CONST;
f52bde21
JK
1560 SYMBOL_TYPE (sym) = read_type (&p, objfile);
1561
1562 if (*p != ',')
1563 {
2dd30c72 1564 SYMBOL_TYPE (sym) = error_type (&p, objfile);
f52bde21
JK
1565 break;
1566 }
1567 ++p;
1568
1569 /* If the value is too big to fit in an int (perhaps because
1570 it is unsigned), or something like that, we silently get
1571 a bogus value. The type and everything else about it is
1572 correct. Ideally, we should be using whatever we have
1573 available for parsing unsigned and long long values,
1574 however. */
1575 SYMBOL_VALUE (sym) = atoi (p);
d07734e3
FF
1576 }
1577 break;
1578 default:
ff580c7b 1579 {
ff580c7b 1580 SYMBOL_CLASS (sym) = LOC_CONST;
2dd30c72 1581 SYMBOL_TYPE (sym) = error_type (&p, objfile);
ff580c7b 1582 }
d07734e3
FF
1583 }
1584 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
1585 add_symbol_to_list (sym, &file_symbols);
1586 return sym;
d07734e3 1587
d07734e3
FF
1588 case 'C':
1589 /* The name of a caught exception. */
59d69506 1590 SYMBOL_TYPE (sym) = read_type (&p, objfile);
d07734e3
FF
1591 SYMBOL_CLASS (sym) = LOC_LABEL;
1592 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
1593 SYMBOL_VALUE_ADDRESS (sym) = valu;
1594 add_symbol_to_list (sym, &local_symbols);
1595 break;
1596
1597 case 'f':
1598 /* A static function definition. */
59d69506 1599 SYMBOL_TYPE (sym) = read_type (&p, objfile);
d07734e3
FF
1600 SYMBOL_CLASS (sym) = LOC_BLOCK;
1601 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
1602 add_symbol_to_list (sym, &file_symbols);
1603 /* fall into process_function_types. */
1604
1605 process_function_types:
1606 /* Function result types are described as the result type in stabs.
1607 We need to convert this to the function-returning-type-X type
1608 in GDB. E.g. "int" is converted to "function returning int". */
1609 if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_FUNC)
7c606261 1610 SYMBOL_TYPE (sym) = lookup_function_type (SYMBOL_TYPE (sym));
345bcdcc
JB
1611
1612 /* All functions in C++ have prototypes. */
1613 if (SYMBOL_LANGUAGE (sym) == language_cplus)
1614 TYPE_FLAGS (SYMBOL_TYPE (sym)) |= TYPE_FLAG_PROTOTYPED;
1615
d07734e3
FF
1616 /* fall into process_prototype_types */
1617
1618 process_prototype_types:
a871ab92 1619 /* Sun acc puts declared types of arguments here. */
345bcdcc
JB
1620 if (*p == ';')
1621 {
a871ab92
PS
1622 struct type *ftype = SYMBOL_TYPE (sym);
1623 int nsemi = 0;
1624 int nparams = 0;
1625 char *p1 = p;
1626
1627 /* Obtain a worst case guess for the number of arguments
1628 by counting the semicolons. */
1629 while (*p1)
1630 {
1631 if (*p1++ == ';')
1632 nsemi++;
1633 }
345bcdcc 1634
a871ab92
PS
1635 /* Allocate parameter information fields and fill them in. */
1636 TYPE_FIELDS (ftype) = (struct field *)
1637 TYPE_ALLOC (ftype, nsemi * sizeof (struct field));
1638 while (*p++ == ';')
1639 {
1640 struct type *ptype;
1641
1642 /* A type number of zero indicates the start of varargs.
1643 FIXME: GDB currently ignores vararg functions. */
1644 if (p[0] == '0' && p[1] == '\0')
1645 break;
1646 ptype = read_type (&p, objfile);
1647
1648 /* The Sun compilers mark integer arguments, which should
1649 be promoted to the width of the calling conventions, with
1650 a type which references itself. This type is turned into
1651 a TYPE_CODE_VOID type by read_type, and we have to turn
1652 it back into builtin_type_int here.
1653 FIXME: Do we need a new builtin_type_promoted_int_arg ? */
1654 if (TYPE_CODE (ptype) == TYPE_CODE_VOID)
1655 ptype = builtin_type_int;
1656 TYPE_FIELD_TYPE (ftype, nparams++) = ptype;
1657 }
1658 TYPE_NFIELDS (ftype) = nparams;
1659 TYPE_FLAGS (ftype) |= TYPE_FLAG_PROTOTYPED;
345bcdcc 1660 }
d07734e3
FF
1661 break;
1662
1663 case 'F':
1664 /* A global function definition. */
59d69506 1665 SYMBOL_TYPE (sym) = read_type (&p, objfile);
d07734e3
FF
1666 SYMBOL_CLASS (sym) = LOC_BLOCK;
1667 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
1668 add_symbol_to_list (sym, &global_symbols);
1669 goto process_function_types;
1670
1671 case 'G':
1672 /* For a class G (global) symbol, it appears that the
1673 value is not correct. It is necessary to search for the
1674 corresponding linker definition to find the value.
1675 These definitions appear at the end of the namelist. */
59d69506 1676 SYMBOL_TYPE (sym) = read_type (&p, objfile);
d07734e3
FF
1677 SYMBOL_CLASS (sym) = LOC_STATIC;
1678 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
d719efc6
DP
1679 /* Don't add symbol references to global_sym_chain.
1680 Symbol references don't have valid names and wont't match up with
1681 minimal symbols when the global_sym_chain is relocated.
1682 We'll fixup symbol references when we fixup the defining symbol. */
1683 if (SYMBOL_NAME (sym) && SYMBOL_NAME (sym)[0] != '#')
1684 {
1685 i = hashname (SYMBOL_NAME (sym));
1686 SYMBOL_VALUE_CHAIN (sym) = global_sym_chain[i];
1687 global_sym_chain[i] = sym;
1688 }
d07734e3
FF
1689 add_symbol_to_list (sym, &global_symbols);
1690 break;
1691
1692 /* This case is faked by a conditional above,
1693 when there is no code letter in the dbx data.
1694 Dbx data never actually contains 'l'. */
d9389f37 1695 case 's':
d07734e3 1696 case 'l':
59d69506 1697 SYMBOL_TYPE (sym) = read_type (&p, objfile);
d07734e3
FF
1698 SYMBOL_CLASS (sym) = LOC_LOCAL;
1699 SYMBOL_VALUE (sym) = valu;
1700 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
1701 add_symbol_to_list (sym, &local_symbols);
1702 break;
1703
1704 case 'p':
59d69506
JK
1705 if (*p == 'F')
1706 /* pF is a two-letter code that means a function parameter in Fortran.
1707 The type-number specifies the type of the return value.
1708 Translate it into a pointer-to-function type. */
1709 {
1710 p++;
1711 SYMBOL_TYPE (sym)
1712 = lookup_pointer_type
1713 (lookup_function_type (read_type (&p, objfile)));
1714 }
1715 else
1716 SYMBOL_TYPE (sym) = read_type (&p, objfile);
1717
d07734e3
FF
1718 /* Normally this is a parameter, a LOC_ARG. On the i960, it
1719 can also be a LOC_LOCAL_ARG depending on symbol type. */
1720#ifndef DBX_PARM_SYMBOL_CLASS
1721#define DBX_PARM_SYMBOL_CLASS(type) LOC_ARG
1722#endif
59d69506 1723
d07734e3
FF
1724 SYMBOL_CLASS (sym) = DBX_PARM_SYMBOL_CLASS (type);
1725 SYMBOL_VALUE (sym) = valu;
1726 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
d07734e3
FF
1727 add_symbol_to_list (sym, &local_symbols);
1728
b8176214
ILT
1729 if (TARGET_BYTE_ORDER != BIG_ENDIAN)
1730 {
1731 /* On little-endian machines, this crud is never necessary,
1732 and, if the extra bytes contain garbage, is harmful. */
1733 break;
1734 }
1735
d07734e3
FF
1736 /* If it's gcc-compiled, if it says `short', believe it. */
1737 if (processing_gcc_compilation || BELIEVE_PCC_PROMOTION)
1738 break;
1739
f52bde21
JK
1740#if !BELIEVE_PCC_PROMOTION
1741 {
1742 /* This is the signed type which arguments get promoted to. */
1743 static struct type *pcc_promotion_type;
1744 /* This is the unsigned type which arguments get promoted to. */
1745 static struct type *pcc_unsigned_promotion_type;
1746
1747 /* Call it "int" because this is mainly C lossage. */
1748 if (pcc_promotion_type == NULL)
1749 pcc_promotion_type =
1750 init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
1751 0, "int", NULL);
1752
1753 if (pcc_unsigned_promotion_type == NULL)
1754 pcc_unsigned_promotion_type =
1755 init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
1756 TYPE_FLAG_UNSIGNED, "unsigned int", NULL);
d07734e3 1757
f52bde21
JK
1758#if defined(BELIEVE_PCC_PROMOTION_TYPE)
1759 /* This macro is defined on machines (e.g. sparc) where
1760 we should believe the type of a PCC 'short' argument,
1761 but shouldn't believe the address (the address is
dcb38973 1762 the address of the corresponding int).
f52bde21
JK
1763
1764 My guess is that this correction, as opposed to changing
1765 the parameter to an 'int' (as done below, for PCC
1766 on most machines), is the right thing to do
1767 on all machines, but I don't want to risk breaking
1768 something that already works. On most PCC machines,
1769 the sparc problem doesn't come up because the calling
1770 function has to zero the top bytes (not knowing whether
1771 the called function wants an int or a short), so there
dcb38973 1772 is little practical difference between an int and a short
f52bde21
JK
1773 (except perhaps what happens when the GDB user types
1774 "print short_arg = 0x10000;").
1775
1776 Hacked for SunOS 4.1 by gnu@cygnus.com. In 4.1, the compiler
1777 actually produces the correct address (we don't need to fix it
1778 up). I made this code adapt so that it will offset the symbol
1779 if it was pointing at an int-aligned location and not
1780 otherwise. This way you can use the same gdb for 4.0.x and
1781 4.1 systems.
1782
1783 If the parameter is shorter than an int, and is integral
1784 (e.g. char, short, or unsigned equivalent), and is claimed to
1785 be passed on an integer boundary, don't believe it! Offset the
1786 parameter's address to the tail-end of that integer. */
1787
1788 if (TYPE_LENGTH (SYMBOL_TYPE (sym)) < TYPE_LENGTH (pcc_promotion_type)
1789 && TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_INT
1790 && 0 == SYMBOL_VALUE (sym) % TYPE_LENGTH (pcc_promotion_type))
1791 {
1792 SYMBOL_VALUE (sym) += TYPE_LENGTH (pcc_promotion_type)
1793 - TYPE_LENGTH (SYMBOL_TYPE (sym));
1794 }
1795 break;
1796
d07734e3
FF
1797#else /* no BELIEVE_PCC_PROMOTION_TYPE. */
1798
f52bde21
JK
1799 /* If PCC says a parameter is a short or a char,
1800 it is really an int. */
1801 if (TYPE_LENGTH (SYMBOL_TYPE (sym)) < TYPE_LENGTH (pcc_promotion_type)
1802 && TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_INT)
1803 {
1804 SYMBOL_TYPE (sym) =
1805 TYPE_UNSIGNED (SYMBOL_TYPE (sym))
1806 ? pcc_unsigned_promotion_type
1807 : pcc_promotion_type;
1808 }
1809 break;
d07734e3
FF
1810
1811#endif /* no BELIEVE_PCC_PROMOTION_TYPE. */
f52bde21
JK
1812 }
1813#endif /* !BELIEVE_PCC_PROMOTION. */
d07734e3
FF
1814
1815 case 'P':
a97a483c 1816 /* acc seems to use P to declare the prototypes of functions that
d07734e3
FF
1817 are referenced by this file. gdb is not prepared to deal
1818 with this extra information. FIXME, it ought to. */
1819 if (type == N_FUN)
59d69506 1820 {
a97a483c 1821 SYMBOL_TYPE (sym) = read_type (&p, objfile);
59d69506
JK
1822 goto process_prototype_types;
1823 }
f52bde21 1824 /*FALLTHROUGH*/
d07734e3 1825
f52bde21 1826 case 'R':
d07734e3 1827 /* Parameter which is in a register. */
59d69506 1828 SYMBOL_TYPE (sym) = read_type (&p, objfile);
d07734e3
FF
1829 SYMBOL_CLASS (sym) = LOC_REGPARM;
1830 SYMBOL_VALUE (sym) = STAB_REG_TO_REGNUM (valu);
1831 if (SYMBOL_VALUE (sym) >= NUM_REGS)
1832 {
0d14c7df
FF
1833 complain (&reg_value_complaint, SYMBOL_VALUE (sym), NUM_REGS,
1834 SYMBOL_SOURCE_NAME (sym));
d07734e3
FF
1835 SYMBOL_VALUE (sym) = SP_REGNUM; /* Known safe, though useless */
1836 }
1837 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
1838 add_symbol_to_list (sym, &local_symbols);
1839 break;
1840
d07734e3
FF
1841 case 'r':
1842 /* Register variable (either global or local). */
59d69506 1843 SYMBOL_TYPE (sym) = read_type (&p, objfile);
d07734e3
FF
1844 SYMBOL_CLASS (sym) = LOC_REGISTER;
1845 SYMBOL_VALUE (sym) = STAB_REG_TO_REGNUM (valu);
1846 if (SYMBOL_VALUE (sym) >= NUM_REGS)
1847 {
0d14c7df
FF
1848 complain (&reg_value_complaint, SYMBOL_VALUE (sym), NUM_REGS,
1849 SYMBOL_SOURCE_NAME (sym));
d07734e3
FF
1850 SYMBOL_VALUE (sym) = SP_REGNUM; /* Known safe, though useless */
1851 }
1852 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
4bfe9e81 1853 if (within_function)
5afa2040
JK
1854 {
1855 /* Sun cc uses a pair of symbols, one 'p' and one 'r' with the same
1856 name to represent an argument passed in a register.
1857 GCC uses 'P' for the same case. So if we find such a symbol pair
649694ea
JK
1858 we combine it into one 'P' symbol. For Sun cc we need to do this
1859 regardless of REG_STRUCT_HAS_ADDR, because the compiler puts out
1860 the 'p' symbol even if it never saves the argument onto the stack.
28f851f9 1861
649694ea 1862 On most machines, we want to preserve both symbols, so that
28f851f9 1863 we can still get information about what is going on with the
4bfe9e81
JK
1864 stack (VAX for computing args_printed, using stack slots instead
1865 of saved registers in backtraces, etc.).
1866
5afa2040 1867 Note that this code illegally combines
28f851f9 1868 main(argc) struct foo argc; { register struct foo argc; }
5afa2040
JK
1869 but this case is considered pathological and causes a warning
1870 from a decent compiler. */
28f851f9 1871
5afa2040 1872 if (local_symbols
4bfe9e81 1873 && local_symbols->nsyms > 0
649694ea 1874#ifndef USE_REGISTER_NOT_ARG
84ad95c1
JL
1875 && REG_STRUCT_HAS_ADDR (processing_gcc_compilation,
1876 SYMBOL_TYPE (sym))
4bfe9e81 1877 && (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT
1c486a2b
PB
1878 || TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_UNION
1879 || TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_SET
1880 || TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_BITSTRING)
649694ea
JK
1881#endif
1882 )
5afa2040
JK
1883 {
1884 struct symbol *prev_sym;
1885 prev_sym = local_symbols->symbol[local_symbols->nsyms - 1];
649694ea
JK
1886 if ((SYMBOL_CLASS (prev_sym) == LOC_REF_ARG
1887 || SYMBOL_CLASS (prev_sym) == LOC_ARG)
5afa2040
JK
1888 && STREQ (SYMBOL_NAME (prev_sym), SYMBOL_NAME(sym)))
1889 {
1890 SYMBOL_CLASS (prev_sym) = LOC_REGPARM;
fc81adb8
JK
1891 /* Use the type from the LOC_REGISTER; that is the type
1892 that is actually in that register. */
1893 SYMBOL_TYPE (prev_sym) = SYMBOL_TYPE (sym);
5afa2040
JK
1894 SYMBOL_VALUE (prev_sym) = SYMBOL_VALUE (sym);
1895 sym = prev_sym;
1896 break;
1897 }
1898 }
1899 add_symbol_to_list (sym, &local_symbols);
1900 }
d07734e3
FF
1901 else
1902 add_symbol_to_list (sym, &file_symbols);
1903 break;
1904
1905 case 'S':
1906 /* Static symbol at top level of file */
59d69506 1907 SYMBOL_TYPE (sym) = read_type (&p, objfile);
d07734e3
FF
1908 SYMBOL_CLASS (sym) = LOC_STATIC;
1909 SYMBOL_VALUE_ADDRESS (sym) = valu;
137a07e6 1910#ifdef STATIC_TRANSFORM_NAME
f0fce3b8 1911 if (IS_STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym)))
137a07e6
JK
1912 {
1913 struct minimal_symbol *msym;
1914 msym = lookup_minimal_symbol (SYMBOL_NAME (sym), NULL, objfile);
1915 if (msym != NULL)
1916 {
1917 SYMBOL_NAME (sym) = STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym));
1918 SYMBOL_VALUE_ADDRESS (sym) = SYMBOL_VALUE_ADDRESS (msym);
1919 }
1920 }
1921#endif
d07734e3
FF
1922 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
1923 add_symbol_to_list (sym, &file_symbols);
1924 break;
1925
1926 case 't':
59d69506
JK
1927 SYMBOL_TYPE (sym) = read_type (&p, objfile);
1928
d07734e3
FF
1929 /* For a nameless type, we don't want a create a symbol, thus we
1930 did not use `sym'. Return without further processing. */
1931 if (nameless) return NULL;
1932
1933 SYMBOL_CLASS (sym) = LOC_TYPEDEF;
1934 SYMBOL_VALUE (sym) = valu;
1935 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
1936 /* C++ vagaries: we may have a type which is derived from
59d69506
JK
1937 a base type which did not have its name defined when the
1938 derived class was output. We fill in the derived class's
1939 base part member's name here in that case. */
d07734e3 1940 if (TYPE_NAME (SYMBOL_TYPE (sym)) != NULL)
59d69506
JK
1941 if ((TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT
1942 || TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_UNION)
1943 && TYPE_N_BASECLASSES (SYMBOL_TYPE (sym)))
1944 {
1945 int j;
1946 for (j = TYPE_N_BASECLASSES (SYMBOL_TYPE (sym)) - 1; j >= 0; j--)
1947 if (TYPE_BASECLASS_NAME (SYMBOL_TYPE (sym), j) == 0)
1948 TYPE_BASECLASS_NAME (SYMBOL_TYPE (sym), j) =
1949 type_name_no_tag (TYPE_BASECLASS (SYMBOL_TYPE (sym), j));
1950 }
d07734e3 1951
f52bde21 1952 if (TYPE_NAME (SYMBOL_TYPE (sym)) == NULL)
59d69506 1953 {
36a2283d
PB
1954 /* gcc-2.6 or later (when using -fvtable-thunks)
1955 emits a unique named type for a vtable entry.
1956 Some gdb code depends on that specific name. */
1957 extern const char vtbl_ptr_name[];
1958
1959 if ((TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_PTR
1960 && strcmp (SYMBOL_NAME (sym), vtbl_ptr_name))
5af4f5f6 1961 || TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FUNC)
59d69506 1962 {
5af4f5f6
JK
1963 /* If we are giving a name to a type such as "pointer to
1964 foo" or "function returning foo", we better not set
1965 the TYPE_NAME. If the program contains "typedef char
1966 *caddr_t;", we don't want all variables of type char
1967 * to print as caddr_t. This is not just a
1968 consequence of GDB's type management; PCC and GCC (at
1969 least through version 2.4) both output variables of
1970 either type char * or caddr_t with the type number
1971 defined in the 't' symbol for caddr_t. If a future
1972 compiler cleans this up it GDB is not ready for it
1973 yet, but if it becomes ready we somehow need to
1974 disable this check (without breaking the PCC/GCC2.4
1975 case).
59d69506
JK
1976
1977 Sigh.
1978
1979 Fortunately, this check seems not to be necessary
5af4f5f6 1980 for anything except pointers or functions. */
59d69506
JK
1981 }
1982 else
1983 TYPE_NAME (SYMBOL_TYPE (sym)) = SYMBOL_NAME (sym);
1984 }
f52bde21 1985
d07734e3
FF
1986 add_symbol_to_list (sym, &file_symbols);
1987 break;
1988
1989 case 'T':
59d69506
JK
1990 /* Struct, union, or enum tag. For GNU C++, this can be be followed
1991 by 't' which means we are typedef'ing it as well. */
1992 synonym = *p == 't';
1993
1994 if (synonym)
5e548861 1995 p++;
91f87016
JL
1996 /* The semantics of C++ state that "struct foo { ... }" also defines
1997 a typedef for "foo". Unfortunately, cfront never makes the typedef
1998 when translating C++ into C. We make the typedef here so that
1999 "ptype foo" works as expected for cfront translated code. */
2000 else if (current_subfile->language == language_cplus)
5e548861 2001 synonym = 1;
59d69506
JK
2002
2003 SYMBOL_TYPE (sym) = read_type (&p, objfile);
2004
d07734e3
FF
2005 /* For a nameless type, we don't want a create a symbol, thus we
2006 did not use `sym'. Return without further processing. */
2007 if (nameless) return NULL;
2008
2009 SYMBOL_CLASS (sym) = LOC_TYPEDEF;
2010 SYMBOL_VALUE (sym) = valu;
2011 SYMBOL_NAMESPACE (sym) = STRUCT_NAMESPACE;
b2bebdb0
JK
2012 if (TYPE_TAG_NAME (SYMBOL_TYPE (sym)) == 0)
2013 TYPE_TAG_NAME (SYMBOL_TYPE (sym))
2014 = obconcat (&objfile -> type_obstack, "", "", SYMBOL_NAME (sym));
d07734e3
FF
2015 add_symbol_to_list (sym, &file_symbols);
2016
2017 if (synonym)
2018 {
2e4964ad 2019 /* Clone the sym and then modify it. */
d07734e3 2020 register struct symbol *typedef_sym = (struct symbol *)
dac9734e 2021 obstack_alloc (&objfile -> symbol_obstack, sizeof (struct symbol));
2e4964ad 2022 *typedef_sym = *sym;
d07734e3
FF
2023 SYMBOL_CLASS (typedef_sym) = LOC_TYPEDEF;
2024 SYMBOL_VALUE (typedef_sym) = valu;
2025 SYMBOL_NAMESPACE (typedef_sym) = VAR_NAMESPACE;
b2bebdb0
JK
2026 if (TYPE_NAME (SYMBOL_TYPE (sym)) == 0)
2027 TYPE_NAME (SYMBOL_TYPE (sym))
2028 = obconcat (&objfile -> type_obstack, "", "", SYMBOL_NAME (sym));
d07734e3
FF
2029 add_symbol_to_list (typedef_sym, &file_symbols);
2030 }
2031 break;
2032
2033 case 'V':
2034 /* Static symbol of local scope */
59d69506 2035 SYMBOL_TYPE (sym) = read_type (&p, objfile);
d07734e3
FF
2036 SYMBOL_CLASS (sym) = LOC_STATIC;
2037 SYMBOL_VALUE_ADDRESS (sym) = valu;
137a07e6 2038#ifdef STATIC_TRANSFORM_NAME
f0fce3b8 2039 if (IS_STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym)))
137a07e6
JK
2040 {
2041 struct minimal_symbol *msym;
2042 msym = lookup_minimal_symbol (SYMBOL_NAME (sym), NULL, objfile);
2043 if (msym != NULL)
2044 {
2045 SYMBOL_NAME (sym) = STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym));
2046 SYMBOL_VALUE_ADDRESS (sym) = SYMBOL_VALUE_ADDRESS (msym);
2047 }
2048 }
2049#endif
d07734e3 2050 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
25200748
JK
2051 if (os9k_stabs)
2052 add_symbol_to_list (sym, &global_symbols);
2053 else
2054 add_symbol_to_list (sym, &local_symbols);
d07734e3
FF
2055 break;
2056
2057 case 'v':
2058 /* Reference parameter */
59d69506 2059 SYMBOL_TYPE (sym) = read_type (&p, objfile);
d07734e3
FF
2060 SYMBOL_CLASS (sym) = LOC_REF_ARG;
2061 SYMBOL_VALUE (sym) = valu;
2062 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
2063 add_symbol_to_list (sym, &local_symbols);
2064 break;
2065
117a817d
JL
2066 case 'a':
2067 /* Reference parameter which is in a register. */
2068 SYMBOL_TYPE (sym) = read_type (&p, objfile);
2069 SYMBOL_CLASS (sym) = LOC_REGPARM_ADDR;
2070 SYMBOL_VALUE (sym) = STAB_REG_TO_REGNUM (valu);
2071 if (SYMBOL_VALUE (sym) >= NUM_REGS)
2072 {
0d14c7df
FF
2073 complain (&reg_value_complaint, SYMBOL_VALUE (sym), NUM_REGS,
2074 SYMBOL_SOURCE_NAME (sym));
117a817d
JL
2075 SYMBOL_VALUE (sym) = SP_REGNUM; /* Known safe, though useless */
2076 }
2077 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
2078 add_symbol_to_list (sym, &local_symbols);
2079 break;
2080
d07734e3
FF
2081 case 'X':
2082 /* This is used by Sun FORTRAN for "function result value".
2083 Sun claims ("dbx and dbxtool interfaces", 2nd ed)
2084 that Pascal uses it too, but when I tried it Pascal used
2085 "x:3" (local symbol) instead. */
59d69506 2086 SYMBOL_TYPE (sym) = read_type (&p, objfile);
d07734e3
FF
2087 SYMBOL_CLASS (sym) = LOC_LOCAL;
2088 SYMBOL_VALUE (sym) = valu;
2089 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
2090 add_symbol_to_list (sym, &local_symbols);
2091 break;
2092
d719efc6
DP
2093 /* New code added to support cfront stabs strings.
2094 Note: case 'P' already handled above */
94f5a25f
DP
2095 case 'Z':
2096 /* Cfront type continuation coming up!
d719efc6
DP
2097 Find the original definition and add to it.
2098 We'll have to do this for the typedef too,
2099 since we cloned the symbol to define a type in read_type.
2100 Stabs info examples:
2101 __1C :Ztl
2102 foo__1CFv :ZtF (first def foo__1CFv:F(0,3);(0,24))
2103 C:ZsC;;__ct__1CFv func1__1CFv func2__1CFv ... ;;;
2104 where C is the name of the class.
2105 Unfortunately, we can't lookup the original symbol yet 'cuz
2106 we haven't finished reading all the symbols.
2107 Instead, we save it for processing later */
2108 process_later (sym, p, resolve_cfront_continuation);
94f5a25f 2109 SYMBOL_TYPE (sym) = error_type (&p, objfile); /* FIXME! change later */
d719efc6
DP
2110 SYMBOL_CLASS (sym) = LOC_CONST;
2111 SYMBOL_VALUE (sym) = 0;
2112 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
2113 /* Don't add to list - we'll delete it later when
2114 we add the continuation to the real sym */
2115 return sym;
2116 /* End of new code added to support cfront stabs strings */
94f5a25f 2117
d07734e3 2118 default:
2dd30c72 2119 SYMBOL_TYPE (sym) = error_type (&p, objfile);
ea753d03
JK
2120 SYMBOL_CLASS (sym) = LOC_CONST;
2121 SYMBOL_VALUE (sym) = 0;
ea753d03
JK
2122 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
2123 add_symbol_to_list (sym, &file_symbols);
2124 break;
d07734e3 2125 }
5afa2040
JK
2126
2127 /* When passing structures to a function, some systems sometimes pass
1c486a2b 2128 the address in a register, not the structure itself. */
5afa2040 2129
19406903
PS
2130 if (REG_STRUCT_HAS_ADDR (processing_gcc_compilation, SYMBOL_TYPE (sym))
2131 && (SYMBOL_CLASS (sym) == LOC_REGPARM || SYMBOL_CLASS (sym) == LOC_ARG))
1c486a2b 2132 {
19406903
PS
2133 struct type *symbol_type = check_typedef (SYMBOL_TYPE (sym));
2134
2135 if ((TYPE_CODE (symbol_type) == TYPE_CODE_STRUCT)
2136 || (TYPE_CODE (symbol_type) == TYPE_CODE_UNION)
2137 || (TYPE_CODE (symbol_type) == TYPE_CODE_BITSTRING)
2138 || (TYPE_CODE (symbol_type) == TYPE_CODE_SET))
2139 {
2140 /* If REG_STRUCT_HAS_ADDR yields non-zero we have to convert
2141 LOC_REGPARM to LOC_REGPARM_ADDR for structures and unions. */
2142 if (SYMBOL_CLASS (sym) == LOC_REGPARM)
2143 SYMBOL_CLASS (sym) = LOC_REGPARM_ADDR;
2144 /* Likewise for converting LOC_ARG to LOC_REF_ARG (for the 7th
2145 and subsequent arguments on the sparc, for example). */
2146 else if (SYMBOL_CLASS (sym) == LOC_ARG)
2147 SYMBOL_CLASS (sym) = LOC_REF_ARG;
2148 }
1c486a2b 2149 }
f2613710 2150
b84b9183 2151 /* Is there more to parse? For example LRS/alias information? */
c298bd54 2152 while (*p && *p == ';')
d719efc6
DP
2153 {
2154 p++;
2155 if (*p && *p == 'l')
2156 {
2157 /* GNU extensions for live range splitting may be appended to
2158 the end of the stab string. eg. "l(#1,#2);l(#3,#5)" */
2159
b84b9183
JL
2160 /* Resolve the live range and add it to SYM's live range list. */
2161 resolve_live_range (objfile, sym, p);
d719efc6
DP
2162
2163 /* Find end of live range info. */
2164 p = strchr (p, ')');
2165 if (!*p || *p != ')')
2166 error ("Internal error: live range format not recognized.\n");
2167 p++;
2168 }
2169 }
d07734e3
FF
2170 return sym;
2171}
2172
b84b9183 2173/* Add the live range found in P to the symbol SYM in objfile OBJFILE. */
d719efc6 2174
b84b9183 2175static void
d719efc6
DP
2176resolve_live_range (objfile, sym, p)
2177 struct objfile * objfile;
2178 struct symbol *sym;
2179 char *p;
2180{
d719efc6
DP
2181 int refnum;
2182 CORE_ADDR start, end;
b84b9183
JL
2183
2184 /* Sanity check the beginning of the stabs string. */
d719efc6
DP
2185 if (!*p || *p != 'l')
2186 error ("Internal error: live range string.\n");
2187 p++;
2188
2189 if (!*p || *p != '(')
2190 error ("Internal error: live range string.\n");
2191 p++;
2192
b84b9183
JL
2193 /* Get starting value of range and advance P past the reference id.
2194
2195 ?!? In theory, the process_reference should never fail, but we should
2196 catch that case just in case the compiler scrogged the stabs. */
d719efc6
DP
2197 refnum = process_reference (&p);
2198 start = ref_search_value (refnum);
2199 if (!start)
2200 error ("Internal error: live range symbol not found.\n");
2201
2202 if (!*p || *p != ',')
2203 error ("Internal error: live range string.\n");
2204 p++;
2205
b84b9183
JL
2206 /* Get ending value of range and advance P past the reference id.
2207
2208 ?!? In theory, the process_reference should never fail, but we should
2209 catch that case just in case the compiler scrogged the stabs. */
d719efc6
DP
2210 refnum = process_reference (&p);
2211 end = ref_search_value (refnum);
2212 if (!end)
2213 error ("Internal error: live range symbol not found.\n");
2214
d719efc6
DP
2215 if (!*p || *p != ')')
2216 error ("Internal error: live range string.\n");
b84b9183
JL
2217
2218 /* Now that we know the bounds of the range, add it to the
2219 symbol. */
2220 add_live_range (objfile, sym, start, end);
d719efc6
DP
2221}
2222
b84b9183
JL
2223/* Add a new live range defined by START and END to the symbol SYM
2224 in objfile OBJFILE. */
2225
166d7e55 2226static void
d719efc6
DP
2227add_live_range (objfile, sym, start, end)
2228 struct objfile *objfile;
2229 struct symbol *sym;
2230 CORE_ADDR start, end;
2231{
b84b9183 2232 struct range_list *r, *rs;
d719efc6
DP
2233
2234 if (start >= end)
2235 error ("Internal error: end of live range follows start.\n");
2236
2237 /* Alloc new live range structure. */
b84b9183 2238 r = (struct range_list *)
d719efc6 2239 obstack_alloc (&objfile->type_obstack,
b84b9183 2240 sizeof (struct range_list));
d719efc6
DP
2241 r->start = start;
2242 r->end = end;
2243 r->next = 0;
2244
2245 /* Append this range to the symbol's range list. */
b84b9183 2246 if (!SYMBOL_RANGES (sym))
d719efc6 2247 {
b84b9183 2248 SYMBOL_RANGES (sym) = r;
d719efc6
DP
2249 }
2250 else
2251 {
2252 /* Get the last range for the symbol. */
b84b9183 2253 for (rs = SYMBOL_RANGES (sym); rs->next; rs = rs->next)
d719efc6
DP
2254 ;
2255 rs->next = r;
2256 }
2257}
2258
d07734e3
FF
2259\f
2260/* Skip rest of this symbol and return an error type.
2261
2262 General notes on error recovery: error_type always skips to the
2263 end of the symbol (modulo cretinous dbx symbol name continuation).
2264 Thus code like this:
2265
2266 if (*(*pp)++ != ';')
2dd30c72 2267 return error_type (pp, objfile);
d07734e3
FF
2268
2269 is wrong because if *pp starts out pointing at '\0' (typically as the
2270 result of an earlier error), it will be incremented to point to the
2271 start of the next symbol, which might produce strange results, at least
2272 if you run off the end of the string table. Instead use
2273
2274 if (**pp != ';')
2dd30c72 2275 return error_type (pp, objfile);
d07734e3
FF
2276 ++*pp;
2277
2278 or
2279
2280 if (**pp != ';')
2dd30c72 2281 foo = error_type (pp, objfile);
d07734e3
FF
2282 else
2283 ++*pp;
2284
2285 And in case it isn't obvious, the point of all this hair is so the compiler
2286 can define new types and new syntaxes, and old versions of the
2287 debugger will be able to read the new symbol tables. */
2288
ea753d03 2289static struct type *
2dd30c72 2290error_type (pp, objfile)
d07734e3 2291 char **pp;
2dd30c72 2292 struct objfile *objfile;
d07734e3 2293{
51b80b00 2294 complain (&error_type_complaint);
d07734e3
FF
2295 while (1)
2296 {
2297 /* Skip to end of symbol. */
2298 while (**pp != '\0')
e7177cc2
FF
2299 {
2300 (*pp)++;
2301 }
d07734e3
FF
2302
2303 /* Check for and handle cretinous dbx symbol name continuation! */
91a0575c 2304 if ((*pp)[-1] == '\\' || (*pp)[-1] == '?')
e7177cc2 2305 {
2dd30c72 2306 *pp = next_symbol_text (objfile);
e7177cc2 2307 }
d07734e3 2308 else
e7177cc2
FF
2309 {
2310 break;
2311 }
d07734e3 2312 }
e7177cc2 2313 return (builtin_type_error);
d07734e3
FF
2314}
2315
2316\f
59d69506
JK
2317/* Read type information or a type definition; return the type. Even
2318 though this routine accepts either type information or a type
2319 definition, the distinction is relevant--some parts of stabsread.c
2320 assume that type information starts with a digit, '-', or '(' in
2321 deciding whether to call read_type. */
d07734e3
FF
2322
2323struct type *
2324read_type (pp, objfile)
2325 register char **pp;
2326 struct objfile *objfile;
2327{
2328 register struct type *type = 0;
2329 struct type *type1;
2330 int typenums[2];
e7177cc2 2331 char type_descriptor;
d07734e3 2332
5ed0ccaf
JK
2333 /* Size in bits of type if specified by a type attribute, or -1 if
2334 there is no size attribute. */
2335 int type_size = -1;
2336
cba00921
PB
2337 /* Used to distinguish string and bitstring from char-array and set. */
2338 int is_string = 0;
2339
d07734e3
FF
2340 /* Read type number if present. The type number may be omitted.
2341 for instance in a two-dimensional array declared with type
2342 "ar1;1;10;ar1;1;10;4". */
2343 if ((**pp >= '0' && **pp <= '9')
4fc9d7c7
JK
2344 || **pp == '('
2345 || **pp == '-')
d07734e3 2346 {
ea753d03 2347 if (read_type_number (pp, typenums) != 0)
2dd30c72 2348 return error_type (pp, objfile);
d07734e3
FF
2349
2350 /* Type is not being defined here. Either it already exists,
2351 or this is a forward reference to it. dbx_alloc_type handles
2352 both cases. */
2353 if (**pp != '=')
2354 return dbx_alloc_type (typenums, objfile);
2355
2356 /* Type is being defined here. */
15b03b57
PB
2357 /* Skip the '='.
2358 Also skip the type descriptor - we get it below with (*pp)[-1]. */
2359 (*pp)+=2;
d07734e3
FF
2360 }
2361 else
2362 {
2363 /* 'typenums=' not present, type is anonymous. Read and return
2364 the definition, but don't put it in the type vector. */
2365 typenums[0] = typenums[1] = -1;
e7177cc2 2366 (*pp)++;
d07734e3
FF
2367 }
2368
15b03b57 2369 again:
e7177cc2
FF
2370 type_descriptor = (*pp)[-1];
2371 switch (type_descriptor)
d07734e3
FF
2372 {
2373 case 'x':
2374 {
2375 enum type_code code;
2376
2377 /* Used to index through file_symbols. */
2378 struct pending *ppt;
2379 int i;
2380
2381 /* Name including "struct", etc. */
2382 char *type_name;
2383
d07734e3 2384 {
279a3cfd 2385 char *from, *to, *p, *q1, *q2;
d07734e3
FF
2386
2387 /* Set the type code according to the following letter. */
2388 switch ((*pp)[0])
2389 {
2390 case 's':
2391 code = TYPE_CODE_STRUCT;
d07734e3
FF
2392 break;
2393 case 'u':
2394 code = TYPE_CODE_UNION;
d07734e3
FF
2395 break;
2396 case 'e':
2397 code = TYPE_CODE_ENUM;
d07734e3
FF
2398 break;
2399 default:
79cf7e1f
JK
2400 {
2401 /* Complain and keep going, so compilers can invent new
2402 cross-reference types. */
2403 static struct complaint msg =
2404 {"Unrecognized cross-reference type `%c'", 0, 0};
2405 complain (&msg, (*pp)[0]);
2406 code = TYPE_CODE_STRUCT;
2407 break;
2408 }
d07734e3 2409 }
2fb58b98 2410
d719efc6
DP
2411 q1 = strchr (*pp, '<');
2412 p = strchr (*pp, ':');
79cf7e1f 2413 if (p == NULL)
2dd30c72 2414 return error_type (pp, objfile);
f3cc5a0e 2415 if (q1 && p > q1 && p[1] == ':')
2fb58b98 2416 {
f3cc5a0e
PS
2417 int nesting_level = 0;
2418 for (q2 = q1; *q2; q2++)
2419 {
2420 if (*q2 == '<')
2421 nesting_level++;
2422 else if (*q2 == '>')
2423 nesting_level--;
2424 else if (*q2 == ':' && nesting_level == 0)
2425 break;
2426 }
2427 p = q2;
2428 if (*p != ':')
2429 return error_type (pp, objfile);
2fb58b98
KH
2430 }
2431 to = type_name =
2432 (char *)obstack_alloc (&objfile->type_obstack, p - *pp + 1);
d07734e3 2433
d07734e3
FF
2434 /* Copy the name. */
2435 from = *pp + 1;
2fb58b98
KH
2436 while (from < p)
2437 *to++ = *from++;
2438 *to = '\0';
d07734e3 2439
79cf7e1f
JK
2440 /* Set the pointer ahead of the name which we just read, and
2441 the colon. */
2442 *pp = from + 1;
d07734e3
FF
2443 }
2444
dda398c3
JK
2445 /* Now check to see whether the type has already been
2446 declared. This was written for arrays of cross-referenced
2447 types before we had TYPE_CODE_TARGET_STUBBED, so I'm pretty
2448 sure it is not necessary anymore. But it might be a good
2449 idea, to save a little memory. */
2450
d07734e3
FF
2451 for (ppt = file_symbols; ppt; ppt = ppt->next)
2452 for (i = 0; i < ppt->nsyms; i++)
2453 {
2454 struct symbol *sym = ppt->symbol[i];
2455
2456 if (SYMBOL_CLASS (sym) == LOC_TYPEDEF
2457 && SYMBOL_NAMESPACE (sym) == STRUCT_NAMESPACE
2458 && (TYPE_CODE (SYMBOL_TYPE (sym)) == code)
b2bebdb0 2459 && STREQ (SYMBOL_NAME (sym), type_name))
d07734e3
FF
2460 {
2461 obstack_free (&objfile -> type_obstack, type_name);
2462 type = SYMBOL_TYPE (sym);
2463 return type;
2464 }
2465 }
dda398c3 2466
d07734e3
FF
2467 /* Didn't find the type to which this refers, so we must
2468 be dealing with a forward reference. Allocate a type
2469 structure for it, and keep track of it so we can
2470 fill in the rest of the fields when we get the full
2471 type. */
2472 type = dbx_alloc_type (typenums, objfile);
2473 TYPE_CODE (type) = code;
b2bebdb0 2474 TYPE_TAG_NAME (type) = type_name;
d07734e3
FF
2475 INIT_CPLUS_SPECIFIC(type);
2476 TYPE_FLAGS (type) |= TYPE_FLAG_STUB;
2477
2478 add_undefined_type (type);
2479 return type;
2480 }
2481
2482 case '-': /* RS/6000 built-in type */
d07734e3
FF
2483 case '0':
2484 case '1':
2485 case '2':
2486 case '3':
2487 case '4':
2488 case '5':
2489 case '6':
2490 case '7':
2491 case '8':
2492 case '9':
2493 case '(':
15b03b57 2494 (*pp)--;
f52bde21 2495
15b03b57
PB
2496 /* We deal with something like t(1,2)=(3,4)=... which
2497 the Lucid compiler and recent gcc versions (post 2.7.3) use. */
5ed0ccaf 2498
15b03b57
PB
2499 /* Allocate and enter the typedef type first.
2500 This handles recursive types. */
2501 type = dbx_alloc_type (typenums, objfile);
2502 TYPE_CODE (type) = TYPE_CODE_TYPEDEF;
2503 { struct type *xtype = read_type (pp, objfile);
2504 if (type == xtype)
2505 {
2506 /* It's being defined as itself. That means it is "void". */
2507 TYPE_CODE (type) = TYPE_CODE_VOID;
2508 TYPE_LENGTH (type) = 1;
2509 }
2510 else if (type_size >= 0 || is_string)
2511 {
2512 *type = *xtype;
2513 TYPE_NAME (type) = NULL;
2514 TYPE_TAG_NAME (type) = NULL;
2515 }
4b404661
JK
2516 else
2517 {
15b03b57
PB
2518 TYPE_FLAGS (type) |= TYPE_FLAG_TARGET_STUB;
2519 TYPE_TARGET_TYPE (type) = xtype;
4b404661 2520 }
4b404661 2521 }
15b03b57 2522 break;
d07734e3
FF
2523
2524 /* In the following types, we must be sure to overwrite any existing
2525 type that the typenums refer to, rather than allocating a new one
2526 and making the typenums point to the new one. This is because there
2527 may already be pointers to the existing type (if it had been
2528 forward-referenced), and we must change it to a pointer, function,
2529 reference, or whatever, *in-place*. */
2530
2531 case '*':
2532 type1 = read_type (pp, objfile);
2533 type = make_pointer_type (type1, dbx_lookup_type (typenums));
2534 break;
2535
2536 case '&': /* Reference to another type */
2537 type1 = read_type (pp, objfile);
2538 type = make_reference_type (type1, dbx_lookup_type (typenums));
2539 break;
2540
2541 case 'f': /* Function returning another type */
25200748
JK
2542 if (os9k_stabs && **pp == '(')
2543 {
d5336fc5 2544 /* Function prototype; parse it.
25200748
JK
2545 We must conditionalize this on os9k_stabs because otherwise
2546 it could be confused with a Sun-style (1,3) typenumber
2547 (I think). */
d5336fc5 2548 struct type *t;
25200748 2549 ++*pp;
d5336fc5
KH
2550 while (**pp != ')')
2551 {
d719efc6 2552 t = read_type (pp, objfile);
d5336fc5
KH
2553 if (**pp == ',') ++*pp;
2554 }
25200748 2555 }
d07734e3
FF
2556 type1 = read_type (pp, objfile);
2557 type = make_function_type (type1, dbx_lookup_type (typenums));
2558 break;
2559
25200748
JK
2560 case 'k': /* Const qualifier on some type (Sun) */
2561 case 'c': /* Const qualifier on some type (OS9000) */
2562 /* Because 'c' means other things to AIX and 'k' is perfectly good,
2563 only accept 'c' in the os9k_stabs case. */
2564 if (type_descriptor == 'c' && !os9k_stabs)
2dd30c72 2565 return error_type (pp, objfile);
d07734e3
FF
2566 type = read_type (pp, objfile);
2567 /* FIXME! For now, we ignore const and volatile qualifiers. */
2568 break;
2569
25200748
JK
2570 case 'B': /* Volatile qual on some type (Sun) */
2571 case 'i': /* Volatile qual on some type (OS9000) */
2572 /* Because 'i' means other things to AIX and 'B' is perfectly good,
2573 only accept 'i' in the os9k_stabs case. */
2574 if (type_descriptor == 'i' && !os9k_stabs)
2dd30c72 2575 return error_type (pp, objfile);
d07734e3
FF
2576 type = read_type (pp, objfile);
2577 /* FIXME! For now, we ignore const and volatile qualifiers. */
2578 break;
2579
15b03b57
PB
2580 case '@':
2581 if (isdigit (**pp) || **pp == '(' || **pp == '-')
2582 { /* Member (class & variable) type */
2583 /* FIXME -- we should be doing smash_to_XXX types here. */
d07734e3 2584
15b03b57
PB
2585 struct type *domain = read_type (pp, objfile);
2586 struct type *memtype;
d07734e3 2587
15b03b57
PB
2588 if (**pp != ',')
2589 /* Invalid member type data format. */
2590 return error_type (pp, objfile);
2591 ++*pp;
2592
2593 memtype = read_type (pp, objfile);
2594 type = dbx_alloc_type (typenums, objfile);
2595 smash_to_member_type (type, domain, memtype);
2596 }
2597 else /* type attribute */
2598 {
2599 char *attr = *pp;
2600 /* Skip to the semicolon. */
2601 while (**pp != ';' && **pp != '\0')
2602 ++(*pp);
2603 if (**pp == '\0')
2604 return error_type (pp, objfile);
2605 else
2606 ++*pp; /* Skip the semicolon. */
2607
2608 switch (*attr)
2609 {
2610 case 's':
2611 type_size = atoi (attr + 1);
2612 if (type_size <= 0)
2613 type_size = -1;
2614 break;
2615
2616 case 'S':
2617 is_string = 1;
2618 break;
2619
2620 default:
2621 /* Ignore unrecognized type attributes, so future compilers
2622 can invent new ones. */
2623 break;
2624 }
2625 ++*pp;
2626 goto again;
2627 }
d07734e3
FF
2628 break;
2629
2630 case '#': /* Method (class & fn) type */
2631 if ((*pp)[0] == '#')
2632 {
2640f7e1 2633 /* We'll get the parameter types from the name. */
d07734e3
FF
2634 struct type *return_type;
2635
e7177cc2 2636 (*pp)++;
d07734e3
FF
2637 return_type = read_type (pp, objfile);
2638 if (*(*pp)++ != ';')
51b80b00 2639 complain (&invalid_member_complaint, symnum);
d07734e3
FF
2640 type = allocate_stub_method (return_type);
2641 if (typenums[0] != -1)
2642 *dbx_lookup_type (typenums) = type;
2643 }
2644 else
2645 {
2646 struct type *domain = read_type (pp, objfile);
2647 struct type *return_type;
2648 struct type **args;
2649
ea753d03
JK
2650 if (**pp != ',')
2651 /* Invalid member type data format. */
2dd30c72 2652 return error_type (pp, objfile);
ea753d03
JK
2653 else
2654 ++(*pp);
d07734e3
FF
2655
2656 return_type = read_type (pp, objfile);
2657 args = read_args (pp, ';', objfile);
2658 type = dbx_alloc_type (typenums, objfile);
2659 smash_to_method_type (type, domain, return_type, args);
2660 }
2661 break;
2662
2663 case 'r': /* Range type */
2664 type = read_range_type (pp, typenums, objfile);
2665 if (typenums[0] != -1)
2666 *dbx_lookup_type (typenums) = type;
2667 break;
2668
25200748
JK
2669 case 'b':
2670 if (os9k_stabs)
2671 /* Const and volatile qualified type. */
2672 type = read_type (pp, objfile);
2673 else
2674 {
2675 /* Sun ACC builtin int type */
2676 type = read_sun_builtin_type (pp, typenums, objfile);
2677 if (typenums[0] != -1)
2678 *dbx_lookup_type (typenums) = type;
2679 }
d07734e3
FF
2680 break;
2681
2682 case 'R': /* Sun ACC builtin float type */
2683 type = read_sun_floating_type (pp, typenums, objfile);
2684 if (typenums[0] != -1)
2685 *dbx_lookup_type (typenums) = type;
2686 break;
2687
2688 case 'e': /* Enumeration type */
2689 type = dbx_alloc_type (typenums, objfile);
2690 type = read_enum_type (pp, type, objfile);
ea753d03
JK
2691 if (typenums[0] != -1)
2692 *dbx_lookup_type (typenums) = type;
d07734e3
FF
2693 break;
2694
2695 case 's': /* Struct type */
d07734e3
FF
2696 case 'u': /* Union type */
2697 type = dbx_alloc_type (typenums, objfile);
e7177cc2
FF
2698 switch (type_descriptor)
2699 {
2700 case 's':
2701 TYPE_CODE (type) = TYPE_CODE_STRUCT;
2702 break;
2703 case 'u':
2704 TYPE_CODE (type) = TYPE_CODE_UNION;
2705 break;
2706 }
d07734e3 2707 type = read_struct_type (pp, type, objfile);
d07734e3
FF
2708 break;
2709
2710 case 'a': /* Array type */
2711 if (**pp != 'r')
2dd30c72 2712 return error_type (pp, objfile);
d07734e3
FF
2713 ++*pp;
2714
2715 type = dbx_alloc_type (typenums, objfile);
2716 type = read_array_type (pp, type, objfile);
cba00921
PB
2717 if (is_string)
2718 TYPE_CODE (type) = TYPE_CODE_STRING;
d07734e3
FF
2719 break;
2720
e909f287
PB
2721 case 'S':
2722 type1 = read_type (pp, objfile);
2723 type = create_set_type ((struct type*) NULL, type1);
cba00921
PB
2724 if (is_string)
2725 TYPE_CODE (type) = TYPE_CODE_BITSTRING;
e909f287
PB
2726 if (typenums[0] != -1)
2727 *dbx_lookup_type (typenums) = type;
2728 break;
2729
d07734e3
FF
2730 default:
2731 --*pp; /* Go back to the symbol in error */
2732 /* Particularly important if it was \0! */
2dd30c72 2733 return error_type (pp, objfile);
d07734e3
FF
2734 }
2735
2736 if (type == 0)
ea753d03
JK
2737 {
2738 warning ("GDB internal error, type is NULL in stabsread.c\n");
2dd30c72 2739 return error_type (pp, objfile);
ea753d03 2740 }
d07734e3 2741
5ed0ccaf
JK
2742 /* Size specified in a type attribute overrides any other size. */
2743 if (type_size != -1)
5a04f7d1 2744 TYPE_LENGTH (type) = (type_size + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT;
5ed0ccaf 2745
d07734e3
FF
2746 return type;
2747}
2748\f
dd469789
JG
2749/* RS/6000 xlc/dbx combination uses a set of builtin types, starting from -1.
2750 Return the proper type node for a given builtin type number. */
2751
2752static struct type *
a387370d 2753rs6000_builtin_type (typenum)
f52bde21 2754 int typenum;
dd469789 2755{
f52bde21 2756 /* We recognize types numbered from -NUMBER_RECOGNIZED to -1. */
8367c66b 2757#define NUMBER_RECOGNIZED 34
f52bde21
JK
2758 /* This includes an empty slot for type number -0. */
2759 static struct type *negative_types[NUMBER_RECOGNIZED + 1];
46c28185 2760 struct type *rettype = NULL;
f52bde21
JK
2761
2762 if (typenum >= 0 || typenum < -NUMBER_RECOGNIZED)
2763 {
2764 complain (&rs6000_builtin_complaint, typenum);
2765 return builtin_type_error;
2766 }
2767 if (negative_types[-typenum] != NULL)
2768 return negative_types[-typenum];
2769
2770#if TARGET_CHAR_BIT != 8
2771 #error This code wrong for TARGET_CHAR_BIT not 8
2772 /* These definitions all assume that TARGET_CHAR_BIT is 8. I think
2773 that if that ever becomes not true, the correct fix will be to
2774 make the size in the struct type to be in bits, not in units of
2775 TARGET_CHAR_BIT. */
2776#endif
2777
2778 switch (-typenum)
2779 {
2780 case 1:
2781 /* The size of this and all the other types are fixed, defined
2782 by the debugging format. If there is a type called "int" which
2783 is other than 32 bits, then it should use a new negative type
2784 number (or avoid negative type numbers for that case).
2785 See stabs.texinfo. */
2786 rettype = init_type (TYPE_CODE_INT, 4, 0, "int", NULL);
2787 break;
2788 case 2:
2789 rettype = init_type (TYPE_CODE_INT, 1, 0, "char", NULL);
2790 break;
2791 case 3:
2792 rettype = init_type (TYPE_CODE_INT, 2, 0, "short", NULL);
2793 break;
2794 case 4:
2795 rettype = init_type (TYPE_CODE_INT, 4, 0, "long", NULL);
2796 break;
2797 case 5:
2798 rettype = init_type (TYPE_CODE_INT, 1, TYPE_FLAG_UNSIGNED,
2799 "unsigned char", NULL);
2800 break;
2801 case 6:
2802 rettype = init_type (TYPE_CODE_INT, 1, 0, "signed char", NULL);
2803 break;
2804 case 7:
2805 rettype = init_type (TYPE_CODE_INT, 2, TYPE_FLAG_UNSIGNED,
2806 "unsigned short", NULL);
2807 break;
2808 case 8:
2809 rettype = init_type (TYPE_CODE_INT, 4, TYPE_FLAG_UNSIGNED,
2810 "unsigned int", NULL);
2811 break;
2812 case 9:
2813 rettype = init_type (TYPE_CODE_INT, 4, TYPE_FLAG_UNSIGNED,
2814 "unsigned", NULL);
2815 case 10:
2816 rettype = init_type (TYPE_CODE_INT, 4, TYPE_FLAG_UNSIGNED,
2817 "unsigned long", NULL);
2818 break;
2819 case 11:
2f3b7d8e 2820 rettype = init_type (TYPE_CODE_VOID, 1, 0, "void", NULL);
f52bde21
JK
2821 break;
2822 case 12:
2823 /* IEEE single precision (32 bit). */
2824 rettype = init_type (TYPE_CODE_FLT, 4, 0, "float", NULL);
2825 break;
2826 case 13:
2827 /* IEEE double precision (64 bit). */
2828 rettype = init_type (TYPE_CODE_FLT, 8, 0, "double", NULL);
2829 break;
2830 case 14:
2831 /* This is an IEEE double on the RS/6000, and different machines with
2832 different sizes for "long double" should use different negative
2833 type numbers. See stabs.texinfo. */
2834 rettype = init_type (TYPE_CODE_FLT, 8, 0, "long double", NULL);
2835 break;
2836 case 15:
2837 rettype = init_type (TYPE_CODE_INT, 4, 0, "integer", NULL);
2838 break;
2839 case 16:
c6038971
PB
2840 rettype = init_type (TYPE_CODE_BOOL, 4, TYPE_FLAG_UNSIGNED,
2841 "boolean", NULL);
f52bde21
JK
2842 break;
2843 case 17:
2844 rettype = init_type (TYPE_CODE_FLT, 4, 0, "short real", NULL);
2845 break;
2846 case 18:
2847 rettype = init_type (TYPE_CODE_FLT, 8, 0, "real", NULL);
2848 break;
2849 case 19:
2850 rettype = init_type (TYPE_CODE_ERROR, 0, 0, "stringptr", NULL);
2851 break;
2852 case 20:
2853 rettype = init_type (TYPE_CODE_CHAR, 1, TYPE_FLAG_UNSIGNED,
2854 "character", NULL);
2855 break;
2856 case 21:
230a3ab0 2857 rettype = init_type (TYPE_CODE_BOOL, 1, TYPE_FLAG_UNSIGNED,
f52bde21
JK
2858 "logical*1", NULL);
2859 break;
2860 case 22:
230a3ab0 2861 rettype = init_type (TYPE_CODE_BOOL, 2, TYPE_FLAG_UNSIGNED,
f52bde21
JK
2862 "logical*2", NULL);
2863 break;
2864 case 23:
230a3ab0 2865 rettype = init_type (TYPE_CODE_BOOL, 4, TYPE_FLAG_UNSIGNED,
f52bde21
JK
2866 "logical*4", NULL);
2867 break;
2868 case 24:
91ab5674 2869 rettype = init_type (TYPE_CODE_BOOL, 4, TYPE_FLAG_UNSIGNED,
f52bde21
JK
2870 "logical", NULL);
2871 break;
2872 case 25:
2873 /* Complex type consisting of two IEEE single precision values. */
2874 rettype = init_type (TYPE_CODE_ERROR, 8, 0, "complex", NULL);
2875 break;
2876 case 26:
2877 /* Complex type consisting of two IEEE double precision values. */
2878 rettype = init_type (TYPE_CODE_ERROR, 16, 0, "double complex", NULL);
2879 break;
2880 case 27:
2881 rettype = init_type (TYPE_CODE_INT, 1, 0, "integer*1", NULL);
2882 break;
2883 case 28:
2884 rettype = init_type (TYPE_CODE_INT, 2, 0, "integer*2", NULL);
2885 break;
2886 case 29:
2887 rettype = init_type (TYPE_CODE_INT, 4, 0, "integer*4", NULL);
2888 break;
2889 case 30:
2890 rettype = init_type (TYPE_CODE_CHAR, 2, 0, "wchar", NULL);
2891 break;
8367c66b
JK
2892 case 31:
2893 rettype = init_type (TYPE_CODE_INT, 8, 0, "long long", NULL);
2894 break;
2895 case 32:
2896 rettype = init_type (TYPE_CODE_INT, 8, TYPE_FLAG_UNSIGNED,
2897 "unsigned long long", NULL);
2898 break;
2899 case 33:
2900 rettype = init_type (TYPE_CODE_INT, 8, TYPE_FLAG_UNSIGNED,
2901 "logical*8", NULL);
2902 break;
2903 case 34:
2904 rettype = init_type (TYPE_CODE_INT, 8, 0, "integer*8", NULL);
2905 break;
f52bde21
JK
2906 }
2907 negative_types[-typenum] = rettype;
2908 return rettype;
dd469789
JG
2909}
2910\f
d07734e3
FF
2911/* This page contains subroutines of read_type. */
2912
e7177cc2
FF
2913/* Read member function stabs info for C++ classes. The form of each member
2914 function data is:
2915
2916 NAME :: TYPENUM[=type definition] ARGS : PHYSNAME ;
2917
2918 An example with two member functions is:
2919
2920 afunc1::20=##15;:i;2A.;afunc2::20:i;2A.;
2921
2922 For the case of overloaded operators, the format is op$::*.funcs, where
2923 $ is the CPLUS_MARKER (usually '$'), `*' holds the place for an operator
ea753d03
JK
2924 name (such as `+=') and `.' marks the end of the operator name.
2925
2926 Returns 1 for success, 0 for failure. */
e7177cc2
FF
2927
2928static int
2929read_member_functions (fip, pp, type, objfile)
2930 struct field_info *fip;
d07734e3 2931 char **pp;
e7177cc2 2932 struct type *type;
d07734e3
FF
2933 struct objfile *objfile;
2934{
e7177cc2
FF
2935 int nfn_fields = 0;
2936 int length = 0;
2937 /* Total number of member functions defined in this class. If the class
2938 defines two `f' functions, and one `g' function, then this will have
2939 the value 3. */
d07734e3 2940 int total_length = 0;
e7177cc2 2941 int i;
d07734e3
FF
2942 struct next_fnfield
2943 {
2944 struct next_fnfield *next;
2945 struct fn_field fn_field;
e7177cc2
FF
2946 } *sublist;
2947 struct type *look_ahead_type;
2948 struct next_fnfieldlist *new_fnlist;
2949 struct next_fnfield *new_sublist;
2950 char *main_fn_name;
d07734e3 2951 register char *p;
e7177cc2
FF
2952
2953 /* Process each list until we find something that is not a member function
2954 or find the end of the functions. */
d07734e3 2955
e7177cc2 2956 while (**pp != ';')
d07734e3 2957 {
e7177cc2
FF
2958 /* We should be positioned at the start of the function name.
2959 Scan forward to find the first ':' and if it is not the
2960 first of a "::" delimiter, then this is not a member function. */
2961 p = *pp;
2962 while (*p != ':')
2963 {
2964 p++;
2965 }
2966 if (p[1] != ':')
2967 {
2968 break;
2969 }
d07734e3 2970
e7177cc2
FF
2971 sublist = NULL;
2972 look_ahead_type = NULL;
2973 length = 0;
2974
2975 new_fnlist = (struct next_fnfieldlist *)
2976 xmalloc (sizeof (struct next_fnfieldlist));
2977 make_cleanup (free, new_fnlist);
2978 memset (new_fnlist, 0, sizeof (struct next_fnfieldlist));
2979
81afee37 2980 if ((*pp)[0] == 'o' && (*pp)[1] == 'p' && is_cplus_marker ((*pp)[2]))
d07734e3 2981 {
e7177cc2
FF
2982 /* This is a completely wierd case. In order to stuff in the
2983 names that might contain colons (the usual name delimiter),
2984 Mike Tiemann defined a different name format which is
2985 signalled if the identifier is "op$". In that case, the
2986 format is "op$::XXXX." where XXXX is the name. This is
2987 used for names like "+" or "=". YUUUUUUUK! FIXME! */
2988 /* This lets the user type "break operator+".
2989 We could just put in "+" as the name, but that wouldn't
2990 work for "*". */
2991 static char opname[32] = {'o', 'p', CPLUS_MARKER};
2992 char *o = opname + 3;
2993
2994 /* Skip past '::'. */
2995 *pp = p + 2;
d07734e3 2996
2dd30c72 2997 STABS_CONTINUE (pp, objfile);
e7177cc2
FF
2998 p = *pp;
2999 while (*p != '.')
d07734e3 3000 {
e7177cc2
FF
3001 *o++ = *p++;
3002 }
3003 main_fn_name = savestring (opname, o - opname);
3004 /* Skip past '.' */
3005 *pp = p + 1;
3006 }
3007 else
3008 {
3009 main_fn_name = savestring (*pp, p - *pp);
3010 /* Skip past '::'. */
3011 *pp = p + 2;
3012 }
3013 new_fnlist -> fn_fieldlist.name = main_fn_name;
3014
3015 do
3016 {
3017 new_sublist =
3018 (struct next_fnfield *) xmalloc (sizeof (struct next_fnfield));
3019 make_cleanup (free, new_sublist);
3020 memset (new_sublist, 0, sizeof (struct next_fnfield));
3021
3022 /* Check for and handle cretinous dbx symbol name continuation! */
3023 if (look_ahead_type == NULL)
3024 {
3025 /* Normal case. */
2dd30c72 3026 STABS_CONTINUE (pp, objfile);
e7177cc2
FF
3027
3028 new_sublist -> fn_field.type = read_type (pp, objfile);
3029 if (**pp != ':')
3030 {
3031 /* Invalid symtab info for member function. */
2a021f21 3032 return 0;
e7177cc2
FF
3033 }
3034 }
3035 else
3036 {
3037 /* g++ version 1 kludge */
3038 new_sublist -> fn_field.type = look_ahead_type;
3039 look_ahead_type = NULL;
3040 }
3041
3042 (*pp)++;
3043 p = *pp;
3044 while (*p != ';')
3045 {
3046 p++;
d07734e3 3047 }
e7177cc2
FF
3048
3049 /* If this is just a stub, then we don't have the real name here. */
d07734e3 3050
e7177cc2
FF
3051 if (TYPE_FLAGS (new_sublist -> fn_field.type) & TYPE_FLAG_STUB)
3052 {
39cb3d04
PS
3053 if (!TYPE_DOMAIN_TYPE (new_sublist -> fn_field.type))
3054 TYPE_DOMAIN_TYPE (new_sublist -> fn_field.type) = type;
e7177cc2
FF
3055 new_sublist -> fn_field.is_stub = 1;
3056 }
3057 new_sublist -> fn_field.physname = savestring (*pp, p - *pp);
3058 *pp = p + 1;
3059
3060 /* Set this member function's visibility fields. */
3061 switch (*(*pp)++)
3062 {
3063 case VISIBILITY_PRIVATE:
3064 new_sublist -> fn_field.is_private = 1;
3065 break;
3066 case VISIBILITY_PROTECTED:
3067 new_sublist -> fn_field.is_protected = 1;
3068 break;
3069 }
3070
2dd30c72 3071 STABS_CONTINUE (pp, objfile);
d07734e3
FF
3072 switch (**pp)
3073 {
e7177cc2
FF
3074 case 'A': /* Normal functions. */
3075 new_sublist -> fn_field.is_const = 0;
3076 new_sublist -> fn_field.is_volatile = 0;
3077 (*pp)++;
3078 break;
3079 case 'B': /* `const' member functions. */
3080 new_sublist -> fn_field.is_const = 1;
3081 new_sublist -> fn_field.is_volatile = 0;
3082 (*pp)++;
3083 break;
3084 case 'C': /* `volatile' member function. */
3085 new_sublist -> fn_field.is_const = 0;
3086 new_sublist -> fn_field.is_volatile = 1;
3087 (*pp)++;
3088 break;
3089 case 'D': /* `const volatile' member function. */
3090 new_sublist -> fn_field.is_const = 1;
3091 new_sublist -> fn_field.is_volatile = 1;
3092 (*pp)++;
3093 break;
3094 case '*': /* File compiled with g++ version 1 -- no info */
3095 case '?':
3096 case '.':
3097 break;
3098 default:
51b80b00 3099 complain (&const_vol_complaint, **pp);
e7177cc2 3100 break;
d07734e3 3101 }
e7177cc2
FF
3102
3103 switch (*(*pp)++)
3104 {
3105 case '*':
ea753d03
JK
3106 {
3107 int nbits;
e7177cc2
FF
3108 /* virtual member function, followed by index.
3109 The sign bit is set to distinguish pointers-to-methods
3110 from virtual function indicies. Since the array is
3111 in words, the quantity must be shifted left by 1
3112 on 16 bit machine, and by 2 on 32 bit machine, forcing
3113 the sign bit out, and usable as a valid index into
3114 the array. Remove the sign bit here. */
3115 new_sublist -> fn_field.voffset =
ea753d03
JK
3116 (0x7fffffff & read_huge_number (pp, ';', &nbits)) + 2;
3117 if (nbits != 0)
3118 return 0;
e7177cc2 3119
2dd30c72 3120 STABS_CONTINUE (pp, objfile);
e7177cc2
FF
3121 if (**pp == ';' || **pp == '\0')
3122 {
3123 /* Must be g++ version 1. */
3124 new_sublist -> fn_field.fcontext = 0;
3125 }
3126 else
3127 {
3128 /* Figure out from whence this virtual function came.
3129 It may belong to virtual function table of
3130 one of its baseclasses. */
3131 look_ahead_type = read_type (pp, objfile);
3132 if (**pp == ':')
3133 {
3134 /* g++ version 1 overloaded methods. */
3135 }
3136 else
3137 {
3138 new_sublist -> fn_field.fcontext = look_ahead_type;
3139 if (**pp != ';')
3140 {
2a021f21 3141 return 0;
e7177cc2
FF
3142 }
3143 else
3144 {
3145 ++*pp;
3146 }
3147 look_ahead_type = NULL;
3148 }
3149 }
3150 break;
ea753d03 3151 }
e7177cc2
FF
3152 case '?':
3153 /* static member function. */
3154 new_sublist -> fn_field.voffset = VOFFSET_STATIC;
3155 if (strncmp (new_sublist -> fn_field.physname,
3156 main_fn_name, strlen (main_fn_name)))
3157 {
3158 new_sublist -> fn_field.is_stub = 1;
3159 }
3160 break;
3161
3162 default:
3163 /* error */
51b80b00 3164 complain (&member_fn_complaint, (*pp)[-1]);
e7177cc2
FF
3165 /* Fall through into normal member function. */
3166
3167 case '.':
3168 /* normal member function. */
3169 new_sublist -> fn_field.voffset = 0;
3170 new_sublist -> fn_field.fcontext = 0;
3171 break;
3172 }
3173
3174 new_sublist -> next = sublist;
3175 sublist = new_sublist;
3176 length++;
2dd30c72 3177 STABS_CONTINUE (pp, objfile);
d07734e3 3178 }
e7177cc2
FF
3179 while (**pp != ';' && **pp != '\0');
3180
3181 (*pp)++;
3182
3183 new_fnlist -> fn_fieldlist.fn_fields = (struct fn_field *)
3184 obstack_alloc (&objfile -> type_obstack,
3185 sizeof (struct fn_field) * length);
3186 memset (new_fnlist -> fn_fieldlist.fn_fields, 0,
3187 sizeof (struct fn_field) * length);
3188 for (i = length; (i--, sublist); sublist = sublist -> next)
3189 {
3190 new_fnlist -> fn_fieldlist.fn_fields[i] = sublist -> fn_field;
3191 }
3192
3193 new_fnlist -> fn_fieldlist.length = length;
3194 new_fnlist -> next = fip -> fnlist;
3195 fip -> fnlist = new_fnlist;
3196 nfn_fields++;
3197 total_length += length;
2dd30c72 3198 STABS_CONTINUE (pp, objfile);
d07734e3
FF
3199 }
3200
e7177cc2
FF
3201 if (nfn_fields)
3202 {
3203 ALLOCATE_CPLUS_STRUCT_TYPE (type);
3204 TYPE_FN_FIELDLISTS (type) = (struct fn_fieldlist *)
3205 TYPE_ALLOC (type, sizeof (struct fn_fieldlist) * nfn_fields);
3206 memset (TYPE_FN_FIELDLISTS (type), 0,
3207 sizeof (struct fn_fieldlist) * nfn_fields);
3208 TYPE_NFN_FIELDS (type) = nfn_fields;
3209 TYPE_NFN_FIELDS_TOTAL (type) = total_length;
3210 }
d07734e3 3211
2a021f21 3212 return 1;
e7177cc2 3213}
d07734e3 3214
e7177cc2 3215/* Special GNU C++ name.
d07734e3 3216
ea753d03
JK
3217 Returns 1 for success, 0 for failure. "failure" means that we can't
3218 keep parsing and it's time for error_type(). */
3219
3220static int
e7177cc2
FF
3221read_cpp_abbrev (fip, pp, type, objfile)
3222 struct field_info *fip;
3223 char **pp;
3224 struct type *type;
3225 struct objfile *objfile;
3226{
3227 register char *p;
e7177cc2 3228 char *name;
2a021f21 3229 char cpp_abbrev;
e7177cc2 3230 struct type *context;
d07734e3 3231
e7177cc2
FF
3232 p = *pp;
3233 if (*++p == 'v')
d07734e3 3234 {
e7177cc2 3235 name = NULL;
2a021f21
JG
3236 cpp_abbrev = *++p;
3237
d07734e3
FF
3238 *pp = p + 1;
3239
e7177cc2
FF
3240 /* At this point, *pp points to something like "22:23=*22...",
3241 where the type number before the ':' is the "context" and
3242 everything after is a regular type definition. Lookup the
3243 type, find it's name, and construct the field name. */
3244
3245 context = read_type (pp, objfile);
2a021f21
JG
3246
3247 switch (cpp_abbrev)
d07734e3 3248 {
2a021f21
JG
3249 case 'f': /* $vf -- a virtual function table pointer */
3250 fip->list->field.name =
3251 obconcat (&objfile->type_obstack, vptr_name, "", "");
3252 break;
3253
3254 case 'b': /* $vb -- a virtual bsomethingorother */
3255 name = type_name_no_tag (context);
3256 if (name == NULL)
3257 {
3258 complain (&invalid_cpp_type_complaint, symnum);
3259 name = "FOO";
3260 }
3261 fip->list->field.name =
3262 obconcat (&objfile->type_obstack, vb_name, name, "");
3263 break;
3264
3265 default:
3266 complain (&invalid_cpp_abbrev_complaint, *pp);
3267 fip->list->field.name =
3268 obconcat (&objfile->type_obstack,
3269 "INVALID_CPLUSPLUS_ABBREV", "", "");
3270 break;
e7177cc2 3271 }
d07734e3 3272
e7177cc2
FF
3273 /* At this point, *pp points to the ':'. Skip it and read the
3274 field type. */
d07734e3 3275
e7177cc2
FF
3276 p = ++(*pp);
3277 if (p[-1] != ':')
3278 {
3279 complain (&invalid_cpp_abbrev_complaint, *pp);
ea753d03 3280 return 0;
e7177cc2 3281 }
2a021f21 3282 fip->list->field.type = read_type (pp, objfile);
ea753d03
JK
3283 if (**pp == ',')
3284 (*pp)++; /* Skip the comma. */
3285 else
3286 return 0;
3287
3288 {
3289 int nbits;
f7f37388 3290 FIELD_BITPOS (fip->list->field) = read_huge_number (pp, ';', &nbits);
ea753d03
JK
3291 if (nbits != 0)
3292 return 0;
3293 }
e7177cc2 3294 /* This field is unpacked. */
f7f37388 3295 FIELD_BITSIZE (fip->list->field) = 0;
2a021f21 3296 fip->list->visibility = VISIBILITY_PRIVATE;
e7177cc2 3297 }
e7177cc2
FF
3298 else
3299 {
3300 complain (&invalid_cpp_abbrev_complaint, *pp);
089dc220
JK
3301 /* We have no idea what syntax an unrecognized abbrev would have, so
3302 better return 0. If we returned 1, we would need to at least advance
3303 *pp to avoid an infinite loop. */
3304 return 0;
e7177cc2 3305 }
ea753d03 3306 return 1;
e7177cc2 3307}
d07734e3 3308
e7177cc2
FF
3309static void
3310read_one_struct_field (fip, pp, p, type, objfile)
3311 struct field_info *fip;
3312 char **pp;
3313 char *p;
3314 struct type *type;
3315 struct objfile *objfile;
3316{
aeca85c1
KH
3317 /* The following is code to work around cfront generated stabs.
3318 The stabs contains full mangled name for each field.
3319 We try to demangle the name and extract the field name out of it.
3320 */
771e0a5c 3321 if (ARM_DEMANGLING && current_subfile->language == language_cplus)
aeca85c1
KH
3322 {
3323 char save_p;
3324 char *dem, *dem_p;
3325 save_p = *p;
3326 *p = '\0';
3327 dem = cplus_demangle (*pp, DMGL_ANSI | DMGL_PARAMS);
3328 if (dem != NULL)
3329 {
3330 dem_p = strrchr (dem, ':');
3331 if (dem_p != 0 && *(dem_p-1)==':')
3332 dem_p++;
f7f37388 3333 FIELD_NAME (fip->list->field) =
d719efc6 3334 obsavestring (dem_p, strlen (dem_p), &objfile -> type_obstack);
aeca85c1
KH
3335 }
3336 else
3337 {
f7f37388 3338 FIELD_NAME (fip->list->field) =
aeca85c1
KH
3339 obsavestring (*pp, p - *pp, &objfile -> type_obstack);
3340 }
3341 *p = save_p;
3342 }
3343 /* end of code for cfront work around */
3344
3345 else
3346 fip -> list -> field.name =
e7177cc2
FF
3347 obsavestring (*pp, p - *pp, &objfile -> type_obstack);
3348 *pp = p + 1;
1dfaef62 3349
e7177cc2
FF
3350 /* This means we have a visibility for a field coming. */
3351 if (**pp == '/')
3352 {
3353 (*pp)++;
3354 fip -> list -> visibility = *(*pp)++;
e7177cc2
FF
3355 }
3356 else
3357 {
3358 /* normal dbx-style format, no explicit visibility */
3359 fip -> list -> visibility = VISIBILITY_PUBLIC;
3360 }
1dfaef62 3361
e7177cc2
FF
3362 fip -> list -> field.type = read_type (pp, objfile);
3363 if (**pp == ':')
3364 {
3365 p = ++(*pp);
d07734e3 3366#if 0
e7177cc2
FF
3367 /* Possible future hook for nested types. */
3368 if (**pp == '!')
d07734e3 3369 {
e7177cc2
FF
3370 fip -> list -> field.bitpos = (long)-2; /* nested type */
3371 p = ++(*pp);
d07734e3 3372 }
f7f37388 3373 else ...;
e7177cc2 3374#endif
e7177cc2
FF
3375 while (*p != ';')
3376 {
3377 p++;
3378 }
f7f37388
PB
3379 /* Static class member. */
3380 SET_FIELD_PHYSNAME (fip->list->field, savestring (*pp, p - *pp));
e7177cc2
FF
3381 *pp = p + 1;
3382 return;
3383 }
3384 else if (**pp != ',')
3385 {
3386 /* Bad structure-type format. */
3387 complain (&stabs_general_complaint, "bad structure-type format");
3388 return;
3389 }
ea753d03 3390
e7177cc2 3391 (*pp)++; /* Skip the comma. */
ea753d03
JK
3392
3393 {
3394 int nbits;
f7f37388 3395 FIELD_BITPOS (fip->list->field) = read_huge_number (pp, ',', &nbits);
ea753d03
JK
3396 if (nbits != 0)
3397 {
3398 complain (&stabs_general_complaint, "bad structure-type format");
3399 return;
3400 }
f7f37388 3401 FIELD_BITSIZE (fip->list->field) = read_huge_number (pp, ';', &nbits);
ea753d03
JK
3402 if (nbits != 0)
3403 {
3404 complain (&stabs_general_complaint, "bad structure-type format");
3405 return;
3406 }
3407 }
d4e68dec 3408
f7f37388
PB
3409 if (FIELD_BITPOS (fip->list->field) == 0
3410 && FIELD_BITSIZE (fip->list->field) == 0)
e7177cc2 3411 {
d4e68dec
JK
3412 /* This can happen in two cases: (1) at least for gcc 2.4.5 or so,
3413 it is a field which has been optimized out. The correct stab for
3414 this case is to use VISIBILITY_IGNORE, but that is a recent
3415 invention. (2) It is a 0-size array. For example
3416 union { int num; char str[0]; } foo. Printing "<no value>" for
3417 str in "p foo" is OK, since foo.str (and thus foo.str[3])
3418 will continue to work, and a 0-size array as a whole doesn't
3419 have any contents to print.
3420
3421 I suspect this probably could also happen with gcc -gstabs (not
3422 -gstabs+) for static fields, and perhaps other C++ extensions.
3423 Hopefully few people use -gstabs with gdb, since it is intended
3424 for dbx compatibility. */
3425
e7177cc2 3426 /* Ignore this field. */
024f65b1 3427 fip -> list-> visibility = VISIBILITY_IGNORE;
e7177cc2
FF
3428 }
3429 else
e7177cc2
FF
3430 {
3431 /* Detect an unpacked field and mark it as such.
3432 dbx gives a bit size for all fields.
3433 Note that forward refs cannot be packed,
3434 and treat enums as if they had the width of ints. */
1dfaef62 3435
f7f37388 3436 if (TYPE_CODE (FIELD_TYPE (fip->list->field)) != TYPE_CODE_INT
ce225290 3437 && TYPE_CODE (FIELD_TYPE (fip->list->field)) != TYPE_CODE_RANGE
f7f37388
PB
3438 && TYPE_CODE (FIELD_TYPE (fip->list->field)) != TYPE_CODE_BOOL
3439 && TYPE_CODE (FIELD_TYPE (fip->list->field)) != TYPE_CODE_ENUM)
d07734e3 3440 {
f7f37388 3441 FIELD_BITSIZE (fip->list->field) = 0;
e7177cc2 3442 }
f7f37388
PB
3443 if ((FIELD_BITSIZE (fip->list->field)
3444 == TARGET_CHAR_BIT * TYPE_LENGTH (FIELD_TYPE (fip->list->field))
3445 || (TYPE_CODE (FIELD_TYPE (fip->list->field)) == TYPE_CODE_ENUM
3446 && FIELD_BITSIZE (fip->list->field) == TARGET_INT_BIT )
e7177cc2
FF
3447 )
3448 &&
f7f37388 3449 FIELD_BITPOS (fip->list->field) % 8 == 0)
e7177cc2 3450 {
f7f37388 3451 FIELD_BITSIZE (fip->list->field) = 0;
d07734e3
FF
3452 }
3453 }
e7177cc2 3454}
d07734e3 3455
d07734e3 3456
e7177cc2 3457/* Read struct or class data fields. They have the form:
d07734e3 3458
e7177cc2 3459 NAME : [VISIBILITY] TYPENUM , BITPOS , BITSIZE ;
d07734e3 3460
e7177cc2
FF
3461 At the end, we see a semicolon instead of a field.
3462
3463 In C++, this may wind up being NAME:?TYPENUM:PHYSNAME; for
3464 a static field.
3465
3466 The optional VISIBILITY is one of:
3467
3468 '/0' (VISIBILITY_PRIVATE)
3469 '/1' (VISIBILITY_PROTECTED)
3470 '/2' (VISIBILITY_PUBLIC)
1dfaef62 3471 '/9' (VISIBILITY_IGNORE)
e7177cc2 3472
ea753d03
JK
3473 or nothing, for C style fields with public visibility.
3474
3475 Returns 1 for success, 0 for failure. */
d4e68dec 3476
e7177cc2
FF
3477static int
3478read_struct_fields (fip, pp, type, objfile)
3479 struct field_info *fip;
3480 char **pp;
3481 struct type *type;
3482 struct objfile *objfile;
3483{
3484 register char *p;
3485 struct nextfield *new;
3486
3487 /* We better set p right now, in case there are no fields at all... */
3488
3489 p = *pp;
3490
3491 /* Read each data member type until we find the terminating ';' at the end of
3492 the data member list, or break for some other reason such as finding the
3493 start of the member function list. */
3494
3495 while (**pp != ';')
d07734e3 3496 {
539dccd3 3497 if (os9k_stabs && **pp == ',') break;
2dd30c72 3498 STABS_CONTINUE (pp, objfile);
e7177cc2
FF
3499 /* Get space to record the next field's data. */
3500 new = (struct nextfield *) xmalloc (sizeof (struct nextfield));
3501 make_cleanup (free, new);
3502 memset (new, 0, sizeof (struct nextfield));
3503 new -> next = fip -> list;
3504 fip -> list = new;
d07734e3 3505
e7177cc2
FF
3506 /* Get the field name. */
3507 p = *pp;
f73fb0ce
JK
3508
3509 /* If is starts with CPLUS_MARKER it is a special abbreviation,
3510 unless the CPLUS_MARKER is followed by an underscore, in
3511 which case it is just the name of an anonymous type, which we
81afee37 3512 should handle like any other type name. */
f73fb0ce 3513
81afee37 3514 if (is_cplus_marker (p[0]) && p[1] != '_')
e7177cc2 3515 {
ea753d03
JK
3516 if (!read_cpp_abbrev (fip, pp, type, objfile))
3517 return 0;
e7177cc2
FF
3518 continue;
3519 }
d07734e3 3520
e7177cc2
FF
3521 /* Look for the ':' that separates the field name from the field
3522 values. Data members are delimited by a single ':', while member
3523 functions are delimited by a pair of ':'s. When we hit the member
3524 functions (if any), terminate scan loop and return. */
d07734e3 3525
ea753d03 3526 while (*p != ':' && *p != '\0')
e7177cc2
FF
3527 {
3528 p++;
3529 }
ea753d03
JK
3530 if (*p == '\0')
3531 return 0;
d07734e3 3532
e7177cc2
FF
3533 /* Check to see if we have hit the member functions yet. */
3534 if (p[1] == ':')
3535 {
3536 break;
3537 }
3538 read_one_struct_field (fip, pp, p, type, objfile);
3539 }
e9935d43 3540 if (p[0] == ':' && p[1] == ':')
d07734e3 3541 {
e7177cc2
FF
3542 /* chill the list of fields: the last entry (at the head) is a
3543 partially constructed entry which we now scrub. */
3544 fip -> list = fip -> list -> next;
d07734e3 3545 }
2a021f21 3546 return 1;
e7177cc2 3547}
d07734e3 3548
e7177cc2
FF
3549/* The stabs for C++ derived classes contain baseclass information which
3550 is marked by a '!' character after the total size. This function is
3551 called when we encounter the baseclass marker, and slurps up all the
3552 baseclass information.
3553
3554 Immediately following the '!' marker is the number of base classes that
3555 the class is derived from, followed by information for each base class.
3556 For each base class, there are two visibility specifiers, a bit offset
3557 to the base class information within the derived class, a reference to
3558 the type for the base class, and a terminating semicolon.
3559
3560 A typical example, with two base classes, would be "!2,020,19;0264,21;".
3561 ^^ ^ ^ ^ ^ ^ ^
3562 Baseclass information marker __________________|| | | | | | |
3563 Number of baseclasses __________________________| | | | | | |
3564 Visibility specifiers (2) ________________________| | | | | |
3565 Offset in bits from start of class _________________| | | | |
3566 Type number for base class ___________________________| | | |
3567 Visibility specifiers (2) _______________________________| | |
3568 Offset in bits from start of class ________________________| |
3569 Type number of base class ____________________________________|
ea753d03
JK
3570
3571 Return 1 for success, 0 for (error-type-inducing) failure. */
e7177cc2
FF
3572
3573static int
3574read_baseclasses (fip, pp, type, objfile)
3575 struct field_info *fip;
3576 char **pp;
3577 struct type *type;
3578 struct objfile *objfile;
3579{
3580 int i;
3581 struct nextfield *new;
d07734e3 3582
e7177cc2
FF
3583 if (**pp != '!')
3584 {
2a021f21 3585 return 1;
e7177cc2
FF
3586 }
3587 else
d07734e3 3588 {
e7177cc2
FF
3589 /* Skip the '!' baseclass information marker. */
3590 (*pp)++;
3591 }
d07734e3 3592
e7177cc2 3593 ALLOCATE_CPLUS_STRUCT_TYPE (type);
ea753d03
JK
3594 {
3595 int nbits;
3596 TYPE_N_BASECLASSES (type) = read_huge_number (pp, ',', &nbits);
3597 if (nbits != 0)
3598 return 0;
3599 }
d07734e3 3600
e7177cc2
FF
3601#if 0
3602 /* Some stupid compilers have trouble with the following, so break
3603 it up into simpler expressions. */
3604 TYPE_FIELD_VIRTUAL_BITS (type) = (B_TYPE *)
3605 TYPE_ALLOC (type, B_BYTES (TYPE_N_BASECLASSES (type)));
3606#else
3607 {
3608 int num_bytes = B_BYTES (TYPE_N_BASECLASSES (type));
3609 char *pointer;
d07734e3 3610
e7177cc2
FF
3611 pointer = (char *) TYPE_ALLOC (type, num_bytes);
3612 TYPE_FIELD_VIRTUAL_BITS (type) = (B_TYPE *) pointer;
3613 }
3614#endif /* 0 */
d07734e3 3615
e7177cc2 3616 B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type), TYPE_N_BASECLASSES (type));
d07734e3 3617
e7177cc2
FF
3618 for (i = 0; i < TYPE_N_BASECLASSES (type); i++)
3619 {
3620 new = (struct nextfield *) xmalloc (sizeof (struct nextfield));
3621 make_cleanup (free, new);
3622 memset (new, 0, sizeof (struct nextfield));
3623 new -> next = fip -> list;
3624 fip -> list = new;
f7f37388 3625 FIELD_BITSIZE (new->field) = 0; /* this should be an unpacked field! */
d07734e3 3626
2dd30c72 3627 STABS_CONTINUE (pp, objfile);
1dfaef62 3628 switch (**pp)
e7177cc2
FF
3629 {
3630 case '0':
3631 /* Nothing to do. */
3632 break;
3633 case '1':
3634 SET_TYPE_FIELD_VIRTUAL (type, i);
3635 break;
3636 default:
1dfaef62
JK
3637 /* Unknown character. Complain and treat it as non-virtual. */
3638 {
3639 static struct complaint msg = {
3640 "Unknown virtual character `%c' for baseclass", 0, 0};
3641 complain (&msg, **pp);
3642 }
e7177cc2 3643 }
1dfaef62 3644 ++(*pp);
d07734e3 3645
e7177cc2
FF
3646 new -> visibility = *(*pp)++;
3647 switch (new -> visibility)
3648 {
3649 case VISIBILITY_PRIVATE:
3650 case VISIBILITY_PROTECTED:
3651 case VISIBILITY_PUBLIC:
3652 break;
3653 default:
1dfaef62
JK
3654 /* Bad visibility format. Complain and treat it as
3655 public. */
3656 {
3657 static struct complaint msg = {
3658 "Unknown visibility `%c' for baseclass", 0, 0};
3659 complain (&msg, new -> visibility);
3660 new -> visibility = VISIBILITY_PUBLIC;
3661 }
e7177cc2 3662 }
d07734e3 3663
ea753d03
JK
3664 {
3665 int nbits;
3666
3667 /* The remaining value is the bit offset of the portion of the object
3668 corresponding to this baseclass. Always zero in the absence of
3669 multiple inheritance. */
d07734e3 3670
f7f37388 3671 FIELD_BITPOS (new->field) = read_huge_number (pp, ',', &nbits);
ea753d03
JK
3672 if (nbits != 0)
3673 return 0;
3674 }
d07734e3 3675
ea753d03
JK
3676 /* The last piece of baseclass information is the type of the
3677 base class. Read it, and remember it's type name as this
3678 field's name. */
d07734e3 3679
e7177cc2
FF
3680 new -> field.type = read_type (pp, objfile);
3681 new -> field.name = type_name_no_tag (new -> field.type);
d07734e3 3682
e7177cc2 3683 /* skip trailing ';' and bump count of number of fields seen */
ea753d03
JK
3684 if (**pp == ';')
3685 (*pp)++;
3686 else
3687 return 0;
d07734e3 3688 }
2a021f21 3689 return 1;
e7177cc2 3690}
d07734e3 3691
2a021f21
JG
3692/* The tail end of stabs for C++ classes that contain a virtual function
3693 pointer contains a tilde, a %, and a type number.
3694 The type number refers to the base class (possibly this class itself) which
3695 contains the vtable pointer for the current class.
3696
3697 This function is called when we have parsed all the method declarations,
3698 so we can look for the vptr base class info. */
3699
e7177cc2
FF
3700static int
3701read_tilde_fields (fip, pp, type, objfile)
3702 struct field_info *fip;
3703 char **pp;
3704 struct type *type;
3705 struct objfile *objfile;
3706{
3707 register char *p;
d07734e3 3708
2dd30c72 3709 STABS_CONTINUE (pp, objfile);
d07734e3 3710
e7177cc2
FF
3711 /* If we are positioned at a ';', then skip it. */
3712 if (**pp == ';')
d07734e3 3713 {
e7177cc2 3714 (*pp)++;
d07734e3
FF
3715 }
3716
d07734e3
FF
3717 if (**pp == '~')
3718 {
e7177cc2 3719 (*pp)++;
d07734e3
FF
3720
3721 if (**pp == '=' || **pp == '+' || **pp == '-')
3722 {
3723 /* Obsolete flags that used to indicate the presence
3724 of constructors and/or destructors. */
e7177cc2 3725 (*pp)++;
d07734e3
FF
3726 }
3727
3728 /* Read either a '%' or the final ';'. */
3729 if (*(*pp)++ == '%')
3730 {
2a021f21
JG
3731 /* The next number is the type number of the base class
3732 (possibly our own class) which supplies the vtable for
3733 this class. Parse it out, and search that class to find
3734 its vtable pointer, and install those into TYPE_VPTR_BASETYPE
3735 and TYPE_VPTR_FIELDNO. */
d07734e3
FF
3736
3737 struct type *t;
3738 int i;
3739
d07734e3
FF
3740 t = read_type (pp, objfile);
3741 p = (*pp)++;
3742 while (*p != '\0' && *p != ';')
e7177cc2
FF
3743 {
3744 p++;
3745 }
d07734e3 3746 if (*p == '\0')
e7177cc2
FF
3747 {
3748 /* Premature end of symbol. */
2a021f21 3749 return 0;
e7177cc2 3750 }
d07734e3
FF
3751
3752 TYPE_VPTR_BASETYPE (type) = t;
2a021f21 3753 if (type == t) /* Our own class provides vtbl ptr */
d07734e3 3754 {
2a021f21
JG
3755 for (i = TYPE_NFIELDS (t) - 1;
3756 i >= TYPE_N_BASECLASSES (t);
3757 --i)
d07734e3 3758 {
2a021f21
JG
3759 if (! strncmp (TYPE_FIELD_NAME (t, i), vptr_name,
3760 sizeof (vptr_name) - 1))
e7177cc2 3761 {
2a021f21
JG
3762 TYPE_VPTR_FIELDNO (type) = i;
3763 goto gotit;
e7177cc2
FF
3764 }
3765 }
2a021f21 3766 /* Virtual function table field not found. */
b646b438 3767 complain (&vtbl_notfound_complaint, TYPE_NAME (type));
2a021f21 3768 return 0;
d07734e3
FF
3769 }
3770 else
e7177cc2
FF
3771 {
3772 TYPE_VPTR_FIELDNO (type) = TYPE_VPTR_FIELDNO (t);
3773 }
d07734e3 3774
2a021f21 3775 gotit:
d07734e3
FF
3776 *pp = p + 1;
3777 }
3778 }
2a021f21 3779 return 1;
e7177cc2 3780}
d07734e3 3781
e7177cc2
FF
3782static int
3783attach_fn_fields_to_type (fip, type)
3784 struct field_info *fip;
3785 register struct type *type;
3786{
3787 register int n;
3788
e7177cc2
FF
3789 for (n = TYPE_NFN_FIELDS (type);
3790 fip -> fnlist != NULL;
3791 fip -> fnlist = fip -> fnlist -> next)
3792 {
3793 --n; /* Circumvent Sun3 compiler bug */
3794 TYPE_FN_FIELDLISTS (type)[n] = fip -> fnlist -> fn_fieldlist;
3795 }
2a021f21 3796 return 1;
e7177cc2
FF
3797}
3798
00d93b6d
DP
3799/* read cfront class static data.
3800 pp points to string starting with the list of static data
3801 eg: A:ZcA;1@Bpub v2@Bvirpri;__ct__1AFv func__1AFv *sfunc__1AFv ;as__1A ;;
3802 ^^^^^^^^
3803
3804 A:ZcA;;foopri__1AFv foopro__1AFv __ct__1AFv __ct__1AFRC1A foopub__1AFv ;;;
3805 ^
3806 */
3807
3808static int
d719efc6 3809read_cfront_static_fields (fip, pp, type, objfile)
00d93b6d
DP
3810 struct field_info *fip;
3811 char **pp;
3812 struct type *type;
3813 struct objfile *objfile;
3814{
00d93b6d
DP
3815 struct nextfield * new;
3816 struct type *stype;
3817 char * sname;
3818 struct symbol * ref_static=0;
3819
3820 if (**pp==';') /* no static data; return */
3821 {
3822 ++(*pp);
3f550b59 3823 return 1;
00d93b6d
DP
3824 }
3825
3826 /* Process each field in the list until we find the terminating ";" */
3827
3828 /* eg: p = "as__1A ;;;" */
3829 STABS_CONTINUE (pp, objfile); /* handle \\ */
d719efc6 3830 while (**pp!=';' && (sname = get_substring (pp, ' '), sname))
00d93b6d
DP
3831 {
3832 ref_static = lookup_symbol (sname, 0, VAR_NAMESPACE, 0, 0); /*demangled_name*/
3833 if (!ref_static)
3834 {
3835 static struct complaint msg = {"\
3836 Unable to find symbol for static data field %s\n",
3837 0, 0};
3838 complain (&msg, sname);
3839 continue;
3840 }
3841 stype = SYMBOL_TYPE(ref_static);
3842
3843 /* allocate a new fip */
3844 new = (struct nextfield *) xmalloc (sizeof (struct nextfield));
3845 make_cleanup (free, new);
3846 memset (new, 0, sizeof (struct nextfield));
3847 new -> next = fip -> list;
3848 fip -> list = new;
3849
3850 /* set visibility */
3851 /* FIXME! no way to tell visibility from stabs??? */
3852 new -> visibility = VISIBILITY_PUBLIC;
3853
3854 /* set field info into fip */
3855 fip -> list -> field.type = stype;
3856
3857 /* set bitpos & bitsize */
d719efc6 3858 SET_FIELD_PHYSNAME (fip->list->field, savestring (sname, strlen (sname)));
00d93b6d
DP
3859
3860 /* set name field */
3861 /* The following is code to work around cfront generated stabs.
3862 The stabs contains full mangled name for each field.
3863 We try to demangle the name and extract the field name out of it.
3864 */
3865 if (ARM_DEMANGLING)
3866 {
3867 char *dem, *dem_p;
3868 dem = cplus_demangle (sname, DMGL_ANSI | DMGL_PARAMS);
3869 if (dem != NULL)
3870 {
3871 dem_p = strrchr (dem, ':');
3872 if (dem_p != 0 && *(dem_p-1)==':')
3873 dem_p++;
3874 fip->list->field.name =
d719efc6 3875 obsavestring (dem_p, strlen (dem_p), &objfile -> type_obstack);
00d93b6d
DP
3876 }
3877 else
3878 {
3879 fip->list->field.name =
d719efc6 3880 obsavestring (sname, strlen (sname), &objfile -> type_obstack);
00d93b6d
DP
3881 }
3882 } /* end of code for cfront work around */
3883 } /* loop again for next static field */
3884 return 1;
3885}
3886
3887/* Copy structure fields to fip so attach_fields_to_type will work.
3888 type has already been created with the initial instance data fields.
3889 Now we want to be able to add the other members to the class,
3890 so we want to add them back to the fip and reattach them again
3891 once we have collected all the class members. */
3892
3893static int
d719efc6 3894copy_cfront_struct_fields (fip, type, objfile)
00d93b6d
DP
3895 struct field_info *fip;
3896 struct type *type;
3897 struct objfile *objfile;
3898{
3899 int nfields = TYPE_NFIELDS(type);
3900 int i;
3901 struct nextfield * new;
3902
3903 /* Copy the fields into the list of fips and reset the types
3904 to remove the old fields */
3905
3906 for (i=0; i<nfields; i++)
3907 {
3908 /* allocate a new fip */
3909 new = (struct nextfield *) xmalloc (sizeof (struct nextfield));
3910 make_cleanup (free, new);
3911 memset (new, 0, sizeof (struct nextfield));
3912 new -> next = fip -> list;
3913 fip -> list = new;
3914
3915 /* copy field info into fip */
3916 new -> field = TYPE_FIELD (type, i);
3917 /* set visibility */
3918 if (TYPE_FIELD_PROTECTED (type, i))
3919 new -> visibility = VISIBILITY_PROTECTED;
3920 else if (TYPE_FIELD_PRIVATE (type, i))
3921 new -> visibility = VISIBILITY_PRIVATE;
3922 else
3923 new -> visibility = VISIBILITY_PUBLIC;
3924 }
3925 /* Now delete the fields from the type since we will be
3926 allocing new space once we get the rest of the fields
3927 in attach_fields_to_type.
3928 The pointer TYPE_FIELDS(type) is left dangling but should
3929 be freed later by objstack_free */
3930 TYPE_FIELDS (type)=0;
3931 TYPE_NFIELDS (type) = 0;
3932
3933 return 1;
3934}
3935
e7177cc2
FF
3936/* Create the vector of fields, and record how big it is.
3937 We need this info to record proper virtual function table information
3938 for this class's virtual functions. */
3939
3940static int
3941attach_fields_to_type (fip, type, objfile)
3942 struct field_info *fip;
3943 register struct type *type;
3944 struct objfile *objfile;
3945{
3946 register int nfields = 0;
3947 register int non_public_fields = 0;
3948 register struct nextfield *scan;
3949
3950 /* Count up the number of fields that we have, as well as taking note of
3951 whether or not there are any non-public fields, which requires us to
3952 allocate and build the private_field_bits and protected_field_bits
3953 bitfields. */
3954
3955 for (scan = fip -> list; scan != NULL; scan = scan -> next)
3956 {
3957 nfields++;
3958 if (scan -> visibility != VISIBILITY_PUBLIC)
3959 {
3960 non_public_fields++;
3961 }
3962 }
3963
3964 /* Now we know how many fields there are, and whether or not there are any
3965 non-public fields. Record the field count, allocate space for the
3966 array of fields, and create blank visibility bitfields if necessary. */
3967
3968 TYPE_NFIELDS (type) = nfields;
3969 TYPE_FIELDS (type) = (struct field *)
3970 TYPE_ALLOC (type, sizeof (struct field) * nfields);
3971 memset (TYPE_FIELDS (type), 0, sizeof (struct field) * nfields);
3972
3973 if (non_public_fields)
3974 {
3975 ALLOCATE_CPLUS_STRUCT_TYPE (type);
3976
3977 TYPE_FIELD_PRIVATE_BITS (type) =
3978 (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
3979 B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type), nfields);
3980
3981 TYPE_FIELD_PROTECTED_BITS (type) =
3982 (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
3983 B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type), nfields);
024f65b1
KH
3984
3985 TYPE_FIELD_IGNORE_BITS (type) =
3986 (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
3987 B_CLRALL (TYPE_FIELD_IGNORE_BITS (type), nfields);
e7177cc2
FF
3988 }
3989
3990 /* Copy the saved-up fields into the field vector. Start from the head
3991 of the list, adding to the tail of the field array, so that they end
3992 up in the same order in the array in which they were added to the list. */
3993
3994 while (nfields-- > 0)
3995 {
3996 TYPE_FIELD (type, nfields) = fip -> list -> field;
3997 switch (fip -> list -> visibility)
3998 {
3999 case VISIBILITY_PRIVATE:
4000 SET_TYPE_FIELD_PRIVATE (type, nfields);
4001 break;
4002
4003 case VISIBILITY_PROTECTED:
4004 SET_TYPE_FIELD_PROTECTED (type, nfields);
4005 break;
4006
024f65b1
KH
4007 case VISIBILITY_IGNORE:
4008 SET_TYPE_FIELD_IGNORE (type, nfields);
1dfaef62 4009 break;
024f65b1 4010
e7177cc2
FF
4011 case VISIBILITY_PUBLIC:
4012 break;
4013
4014 default:
1dfaef62
JK
4015 /* Unknown visibility. Complain and treat it as public. */
4016 {
4017 static struct complaint msg = {
4018 "Unknown visibility `%c' for field", 0, 0};
4019 complain (&msg, fip -> list -> visibility);
4020 }
e7177cc2
FF
4021 break;
4022 }
4023 fip -> list = fip -> list -> next;
4024 }
2a021f21 4025 return 1;
e7177cc2
FF
4026}
4027
4028/* Read the description of a structure (or union type) and return an object
4029 describing the type.
4030
4031 PP points to a character pointer that points to the next unconsumed token
4032 in the the stabs string. For example, given stabs "A:T4=s4a:1,0,32;;",
4033 *PP will point to "4a:1,0,32;;".
4034
4035 TYPE points to an incomplete type that needs to be filled in.
4036
4037 OBJFILE points to the current objfile from which the stabs information is
4038 being read. (Note that it is redundant in that TYPE also contains a pointer
4039 to this same objfile, so it might be a good idea to eliminate it. FIXME).
4040 */
4041
4042static struct type *
4043read_struct_type (pp, type, objfile)
4044 char **pp;
4045 struct type *type;
4046 struct objfile *objfile;
4047{
4048 struct cleanup *back_to;
4049 struct field_info fi;
4050
4051 fi.list = NULL;
4052 fi.fnlist = NULL;
4053
4054 back_to = make_cleanup (null_cleanup, 0);
4055
4056 INIT_CPLUS_SPECIFIC (type);
4057 TYPE_FLAGS (type) &= ~TYPE_FLAG_STUB;
4058
4059 /* First comes the total size in bytes. */
4060
ea753d03
JK
4061 {
4062 int nbits;
4063 TYPE_LENGTH (type) = read_huge_number (pp, 0, &nbits);
4064 if (nbits != 0)
2dd30c72 4065 return error_type (pp, objfile);
ea753d03 4066 }
e7177cc2
FF
4067
4068 /* Now read the baseclasses, if any, read the regular C struct or C++
4069 class member fields, attach the fields to the type, read the C++
4070 member functions, attach them to the type, and then read any tilde
dd469789
JG
4071 field (baseclass specifier for the class holding the main vtable). */
4072
8a177da6
PB
4073 if (!read_baseclasses (&fi, pp, type, objfile)
4074 || !read_struct_fields (&fi, pp, type, objfile)
4075 || !attach_fields_to_type (&fi, type, objfile)
4076 || !read_member_functions (&fi, pp, type, objfile)
4077 || !attach_fn_fields_to_type (&fi, type)
4078 || !read_tilde_fields (&fi, pp, type, objfile))
e7177cc2 4079 {
34cfa2da 4080 type = error_type (pp, objfile);
e7177cc2
FF
4081 }
4082
4083 do_cleanups (back_to);
4084 return (type);
d07734e3
FF
4085}
4086
4087/* Read a definition of an array type,
4088 and create and return a suitable type object.
4089 Also creates a range type which represents the bounds of that
4090 array. */
4091
4092static struct type *
4093read_array_type (pp, type, objfile)
4094 register char **pp;
4095 register struct type *type;
4096 struct objfile *objfile;
4097{
4098 struct type *index_type, *element_type, *range_type;
4099 int lower, upper;
4100 int adjustable = 0;
ea753d03 4101 int nbits;
d07734e3
FF
4102
4103 /* Format of an array type:
25200748
JK
4104 "ar<index type>;lower;upper;<array_contents_type>".
4105 OS9000: "arlower,upper;<array_contents_type>".
d07734e3
FF
4106
4107 Fortran adjustable arrays use Adigits or Tdigits for lower or upper;
4108 for these, produce a type like float[][]. */
4109
25200748
JK
4110 if (os9k_stabs)
4111 index_type = builtin_type_int;
4112 else
4113 {
4114 index_type = read_type (pp, objfile);
4115 if (**pp != ';')
4116 /* Improper format of array type decl. */
2dd30c72 4117 return error_type (pp, objfile);
25200748
JK
4118 ++*pp;
4119 }
d07734e3 4120
11b959da 4121 if (!(**pp >= '0' && **pp <= '9') && **pp != '-')
d07734e3 4122 {
e7177cc2 4123 (*pp)++;
d07734e3
FF
4124 adjustable = 1;
4125 }
25200748 4126 lower = read_huge_number (pp, os9k_stabs ? ',' : ';', &nbits);
ea753d03 4127 if (nbits != 0)
2dd30c72 4128 return error_type (pp, objfile);
d07734e3 4129
11b959da 4130 if (!(**pp >= '0' && **pp <= '9') && **pp != '-')
d07734e3 4131 {
e7177cc2 4132 (*pp)++;
d07734e3
FF
4133 adjustable = 1;
4134 }
ea753d03
JK
4135 upper = read_huge_number (pp, ';', &nbits);
4136 if (nbits != 0)
2dd30c72 4137 return error_type (pp, objfile);
d07734e3
FF
4138
4139 element_type = read_type (pp, objfile);
4140
4141 if (adjustable)
4142 {
4143 lower = 0;
4144 upper = -1;
4145 }
4146
a8a69e63
FF
4147 range_type =
4148 create_range_type ((struct type *) NULL, index_type, lower, upper);
4149 type = create_array_type (type, element_type, range_type);
d07734e3 4150
d07734e3
FF
4151 return type;
4152}
4153
4154
4155/* Read a definition of an enumeration type,
4156 and create and return a suitable type object.
4157 Also defines the symbols that represent the values of the type. */
4158
4159static struct type *
4160read_enum_type (pp, type, objfile)
4161 register char **pp;
4162 register struct type *type;
4163 struct objfile *objfile;
4164{
4165 register char *p;
4166 char *name;
4167 register long n;
4168 register struct symbol *sym;
4169 int nsyms = 0;
4170 struct pending **symlist;
4171 struct pending *osyms, *syms;
4172 int o_nsyms;
25200748 4173 int nbits;
080868b4 4174 int unsigned_enum = 1;
d07734e3
FF
4175
4176#if 0
4177 /* FIXME! The stabs produced by Sun CC merrily define things that ought
4178 to be file-scope, between N_FN entries, using N_LSYM. What's a mother
4179 to do? For now, force all enum values to file scope. */
4180 if (within_function)
4181 symlist = &local_symbols;
4182 else
4183#endif
4184 symlist = &file_symbols;
4185 osyms = *symlist;
4186 o_nsyms = osyms ? osyms->nsyms : 0;
4187
25200748
JK
4188 if (os9k_stabs)
4189 {
4190 /* Size. Perhaps this does not have to be conditionalized on
4191 os9k_stabs (assuming the name of an enum constant can't start
4192 with a digit). */
4193 read_huge_number (pp, 0, &nbits);
4194 if (nbits != 0)
2dd30c72 4195 return error_type (pp, objfile);
25200748
JK
4196 }
4197
65eaea27
JL
4198 /* The aix4 compiler emits an extra field before the enum members;
4199 my guess is it's a type of some sort. Just ignore it. */
4200 if (**pp == '-')
4201 {
4202 /* Skip over the type. */
4203 while (**pp != ':')
4204 (*pp)++;
4205
4206 /* Skip over the colon. */
4207 (*pp)++;
4208 }
4209
d07734e3
FF
4210 /* Read the value-names and their values.
4211 The input syntax is NAME:VALUE,NAME:VALUE, and so on.
4212 A semicolon or comma instead of a NAME means the end. */
4213 while (**pp && **pp != ';' && **pp != ',')
4214 {
2dd30c72 4215 STABS_CONTINUE (pp, objfile);
d07734e3
FF
4216 p = *pp;
4217 while (*p != ':') p++;
4218 name = obsavestring (*pp, p - *pp, &objfile -> symbol_obstack);
4219 *pp = p + 1;
ea753d03
JK
4220 n = read_huge_number (pp, ',', &nbits);
4221 if (nbits != 0)
2dd30c72 4222 return error_type (pp, objfile);
d07734e3 4223
c02a37ea
FF
4224 sym = (struct symbol *)
4225 obstack_alloc (&objfile -> symbol_obstack, sizeof (struct symbol));
d07734e3
FF
4226 memset (sym, 0, sizeof (struct symbol));
4227 SYMBOL_NAME (sym) = name;
2e4964ad 4228 SYMBOL_LANGUAGE (sym) = current_subfile -> language;
d07734e3
FF
4229 SYMBOL_CLASS (sym) = LOC_CONST;
4230 SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
4231 SYMBOL_VALUE (sym) = n;
080868b4
PS
4232 if (n < 0)
4233 unsigned_enum = 0;
d07734e3
FF
4234 add_symbol_to_list (sym, symlist);
4235 nsyms++;
4236 }
4237
4238 if (**pp == ';')
4239 (*pp)++; /* Skip the semicolon. */
4240
4241 /* Now fill in the fields of the type-structure. */
4242
eaba7fae 4243 TYPE_LENGTH (type) = TARGET_INT_BIT / HOST_CHAR_BIT;
d07734e3
FF
4244 TYPE_CODE (type) = TYPE_CODE_ENUM;
4245 TYPE_FLAGS (type) &= ~TYPE_FLAG_STUB;
080868b4
PS
4246 if (unsigned_enum)
4247 TYPE_FLAGS (type) |= TYPE_FLAG_UNSIGNED;
d07734e3
FF
4248 TYPE_NFIELDS (type) = nsyms;
4249 TYPE_FIELDS (type) = (struct field *)
dac9734e 4250 TYPE_ALLOC (type, sizeof (struct field) * nsyms);
c02a37ea 4251 memset (TYPE_FIELDS (type), 0, sizeof (struct field) * nsyms);
d07734e3
FF
4252
4253 /* Find the symbols for the values and put them into the type.
4254 The symbols can be found in the symlist that we put them on
4255 to cause them to be defined. osyms contains the old value
4256 of that symlist; everything up to there was defined by us. */
4257 /* Note that we preserve the order of the enum constants, so
4258 that in something like "enum {FOO, LAST_THING=FOO}" we print
4259 FOO, not LAST_THING. */
4260
b6a40d0c 4261 for (syms = *symlist, n = nsyms - 1; syms; syms = syms->next)
d07734e3 4262 {
0f8631fb
PB
4263 int last = syms == osyms ? o_nsyms : 0;
4264 int j = syms->nsyms;
4265 for (; --j >= last; --n)
d07734e3
FF
4266 {
4267 struct symbol *xsym = syms->symbol[j];
4268 SYMBOL_TYPE (xsym) = type;
4269 TYPE_FIELD_NAME (type, n) = SYMBOL_NAME (xsym);
d07734e3
FF
4270 TYPE_FIELD_BITPOS (type, n) = SYMBOL_VALUE (xsym);
4271 TYPE_FIELD_BITSIZE (type, n) = 0;
4272 }
4273 if (syms == osyms)
4274 break;
4275 }
4276
d07734e3
FF
4277 return type;
4278}
4279
4280/* Sun's ACC uses a somewhat saner method for specifying the builtin
4281 typedefs in every file (for int, long, etc):
4282
4283 type = b <signed> <width>; <offset>; <nbits>
4284 signed = u or s. Possible c in addition to u or s (for char?).
4285 offset = offset from high order bit to start bit of type.
4286 width is # bytes in object of this type, nbits is # bits in type.
4287
4288 The width/offset stuff appears to be for small objects stored in
4289 larger ones (e.g. `shorts' in `int' registers). We ignore it for now,
4290 FIXME. */
4291
4292static struct type *
4293read_sun_builtin_type (pp, typenums, objfile)
4294 char **pp;
4295 int typenums[2];
4296 struct objfile *objfile;
4297{
ea753d03 4298 int type_bits;
d07734e3
FF
4299 int nbits;
4300 int signed_type;
4301
4302 switch (**pp)
4303 {
4304 case 's':
4305 signed_type = 1;
4306 break;
4307 case 'u':
4308 signed_type = 0;
4309 break;
4310 default:
2dd30c72 4311 return error_type (pp, objfile);
d07734e3
FF
4312 }
4313 (*pp)++;
4314
4315 /* For some odd reason, all forms of char put a c here. This is strange
4316 because no other type has this honor. We can safely ignore this because
4317 we actually determine 'char'acterness by the number of bits specified in
4318 the descriptor. */
4319
4320 if (**pp == 'c')
4321 (*pp)++;
4322
4323 /* The first number appears to be the number of bytes occupied
4324 by this type, except that unsigned short is 4 instead of 2.
4325 Since this information is redundant with the third number,
4326 we will ignore it. */
ea753d03
JK
4327 read_huge_number (pp, ';', &nbits);
4328 if (nbits != 0)
2dd30c72 4329 return error_type (pp, objfile);
d07734e3
FF
4330
4331 /* The second number is always 0, so ignore it too. */
ea753d03
JK
4332 read_huge_number (pp, ';', &nbits);
4333 if (nbits != 0)
2dd30c72 4334 return error_type (pp, objfile);
d07734e3
FF
4335
4336 /* The third number is the number of bits for this type. */
ea753d03
JK
4337 type_bits = read_huge_number (pp, 0, &nbits);
4338 if (nbits != 0)
2dd30c72 4339 return error_type (pp, objfile);
159ada02
JK
4340 /* The type *should* end with a semicolon. If it are embedded
4341 in a larger type the semicolon may be the only way to know where
4342 the type ends. If this type is at the end of the stabstring we
4343 can deal with the omitted semicolon (but we don't have to like
4344 it). Don't bother to complain(), Sun's compiler omits the semicolon
4345 for "void". */
4346 if (**pp == ';')
4347 ++(*pp);
d07734e3 4348
2f3b7d8e
JK
4349 if (type_bits == 0)
4350 return init_type (TYPE_CODE_VOID, 1,
4351 signed_type ? 0 : TYPE_FLAG_UNSIGNED, (char *)NULL,
4352 objfile);
4353 else
4354 return init_type (TYPE_CODE_INT,
4355 type_bits / TARGET_CHAR_BIT,
4356 signed_type ? 0 : TYPE_FLAG_UNSIGNED, (char *)NULL,
4357 objfile);
d07734e3
FF
4358}
4359
4360static struct type *
4361read_sun_floating_type (pp, typenums, objfile)
4362 char **pp;
4363 int typenums[2];
4364 struct objfile *objfile;
4365{
ea753d03 4366 int nbits;
f52bde21 4367 int details;
d07734e3
FF
4368 int nbytes;
4369
4370 /* The first number has more details about the type, for example
f52bde21 4371 FN_COMPLEX. */
ea753d03
JK
4372 details = read_huge_number (pp, ';', &nbits);
4373 if (nbits != 0)
2dd30c72 4374 return error_type (pp, objfile);
d07734e3
FF
4375
4376 /* The second number is the number of bytes occupied by this type */
ea753d03
JK
4377 nbytes = read_huge_number (pp, ';', &nbits);
4378 if (nbits != 0)
2dd30c72 4379 return error_type (pp, objfile);
d07734e3 4380
ea753d03 4381 if (details == NF_COMPLEX || details == NF_COMPLEX16
f52bde21
JK
4382 || details == NF_COMPLEX32)
4383 /* This is a type we can't handle, but we do know the size.
4384 We also will be able to give it a name. */
4385 return init_type (TYPE_CODE_ERROR, nbytes, 0, NULL, objfile);
d07734e3 4386
f52bde21 4387 return init_type (TYPE_CODE_FLT, nbytes, 0, NULL, objfile);
d07734e3
FF
4388}
4389
4390/* Read a number from the string pointed to by *PP.
4391 The value of *PP is advanced over the number.
4392 If END is nonzero, the character that ends the
4393 number must match END, or an error happens;
4394 and that character is skipped if it does match.
4395 If END is zero, *PP is left pointing to that character.
4396
ea753d03
JK
4397 If the number fits in a long, set *BITS to 0 and return the value.
4398 If not, set *BITS to be the number of bits in the number and return 0.
d07734e3 4399
ea753d03 4400 If encounter garbage, set *BITS to -1 and return 0. */
d07734e3 4401
ea753d03
JK
4402static long
4403read_huge_number (pp, end, bits)
d07734e3
FF
4404 char **pp;
4405 int end;
d07734e3
FF
4406 int *bits;
4407{
4408 char *p = *pp;
4409 int sign = 1;
4410 long n = 0;
4411 int radix = 10;
4412 char overflow = 0;
4413 int nbits = 0;
4414 int c;
4415 long upper_limit;
4416
4417 if (*p == '-')
4418 {
4419 sign = -1;
4420 p++;
4421 }
4422
4423 /* Leading zero means octal. GCC uses this to output values larger
4424 than an int (because that would be hard in decimal). */
4425 if (*p == '0')
4426 {
4427 radix = 8;
4428 p++;
4429 }
4430
8dbe58d8
KH
4431 if (os9k_stabs)
4432 upper_limit = ULONG_MAX / radix;
4433 else
4434 upper_limit = LONG_MAX / radix;
4435
574a2a49 4436 while ((c = *p++) >= '0' && c < ('0' + radix))
d07734e3
FF
4437 {
4438 if (n <= upper_limit)
4439 {
4440 n *= radix;
4441 n += c - '0'; /* FIXME this overflows anyway */
4442 }
4443 else
4444 overflow = 1;
4445
4446 /* This depends on large values being output in octal, which is
4447 what GCC does. */
4448 if (radix == 8)
4449 {
4450 if (nbits == 0)
4451 {
4452 if (c == '0')
4453 /* Ignore leading zeroes. */
4454 ;
4455 else if (c == '1')
4456 nbits = 1;
4457 else if (c == '2' || c == '3')
4458 nbits = 2;
4459 else
4460 nbits = 3;
4461 }
4462 else
4463 nbits += 3;
4464 }
4465 }
4466 if (end)
4467 {
4468 if (c && c != end)
4469 {
4470 if (bits != NULL)
4471 *bits = -1;
996ccb30 4472 return 0;
d07734e3
FF
4473 }
4474 }
4475 else
4476 --p;
4477
4478 *pp = p;
4479 if (overflow)
4480 {
4481 if (nbits == 0)
4482 {
4483 /* Large decimal constants are an error (because it is hard to
4484 count how many bits are in them). */
4485 if (bits != NULL)
4486 *bits = -1;
996ccb30 4487 return 0;
d07734e3
FF
4488 }
4489
4490 /* -0x7f is the same as 0x80. So deal with it by adding one to
4491 the number of bits. */
4492 if (sign == -1)
4493 ++nbits;
4494 if (bits)
4495 *bits = nbits;
4496 }
4497 else
4498 {
d07734e3
FF
4499 if (bits)
4500 *bits = 0;
ea753d03 4501 return n * sign;
d07734e3 4502 }
ea753d03
JK
4503 /* It's *BITS which has the interesting information. */
4504 return 0;
d07734e3
FF
4505}
4506
4507static struct type *
4508read_range_type (pp, typenums, objfile)
4509 char **pp;
4510 int typenums[2];
4511 struct objfile *objfile;
4512{
e55a5796 4513 char *orig_pp = *pp;
d07734e3
FF
4514 int rangenums[2];
4515 long n2, n3;
4516 int n2bits, n3bits;
4517 int self_subrange;
4518 struct type *result_type;
e55a5796 4519 struct type *index_type = NULL;
d07734e3
FF
4520
4521 /* First comes a type we are a subrange of.
4522 In C it is usually 0, 1 or the type being defined. */
ea753d03 4523 if (read_type_number (pp, rangenums) != 0)
2dd30c72 4524 return error_type (pp, objfile);
d07734e3
FF
4525 self_subrange = (rangenums[0] == typenums[0] &&
4526 rangenums[1] == typenums[1]);
4527
e55a5796
PB
4528 if (**pp == '=')
4529 {
4530 *pp = orig_pp;
4531 index_type = read_type (pp, objfile);
4532 }
4533
d07734e3
FF
4534 /* A semicolon should now follow; skip it. */
4535 if (**pp == ';')
4536 (*pp)++;
4537
4538 /* The remaining two operands are usually lower and upper bounds
4539 of the range. But in some special cases they mean something else. */
ea753d03
JK
4540 n2 = read_huge_number (pp, ';', &n2bits);
4541 n3 = read_huge_number (pp, ';', &n3bits);
d07734e3
FF
4542
4543 if (n2bits == -1 || n3bits == -1)
2dd30c72 4544 return error_type (pp, objfile);
e55a5796
PB
4545
4546 if (index_type)
4547 goto handle_true_range;
4548
d07734e3
FF
4549 /* If limits are huge, must be large integral type. */
4550 if (n2bits != 0 || n3bits != 0)
4551 {
4552 char got_signed = 0;
4553 char got_unsigned = 0;
4554 /* Number of bits in the type. */
46c28185 4555 int nbits = 0;
d07734e3
FF
4556
4557 /* Range from 0 to <large number> is an unsigned large integral type. */
4558 if ((n2bits == 0 && n2 == 0) && n3bits != 0)
4559 {
4560 got_unsigned = 1;
4561 nbits = n3bits;
4562 }
4563 /* Range from <large number> to <large number>-1 is a large signed
cef4c2e7
PS
4564 integral type. Take care of the case where <large number> doesn't
4565 fit in a long but <large number>-1 does. */
4566 else if ((n2bits != 0 && n3bits != 0 && n2bits == n3bits + 1)
4567 || (n2bits != 0 && n3bits == 0
4568 && (n2bits == sizeof (long) * HOST_CHAR_BIT)
4569 && n3 == LONG_MAX))
d07734e3
FF
4570 {
4571 got_signed = 1;
4572 nbits = n2bits;
4573 }
4574
d07734e3
FF
4575 if (got_signed || got_unsigned)
4576 {
f52bde21
JK
4577 return init_type (TYPE_CODE_INT, nbits / TARGET_CHAR_BIT,
4578 got_unsigned ? TYPE_FLAG_UNSIGNED : 0, NULL,
4579 objfile);
d07734e3
FF
4580 }
4581 else
2dd30c72 4582 return error_type (pp, objfile);
d07734e3
FF
4583 }
4584
4585 /* A type defined as a subrange of itself, with bounds both 0, is void. */
4586 if (self_subrange && n2 == 0 && n3 == 0)
2f3b7d8e 4587 return init_type (TYPE_CODE_VOID, 1, 0, NULL, objfile);
d07734e3 4588
5e548861 4589 /* If n3 is zero and n2 is positive, we want a floating type,
d07734e3
FF
4590 and n2 is the width in bytes.
4591
4592 Fortran programs appear to use this for complex types also,
4593 and they give no way to distinguish between double and single-complex!
f52bde21
JK
4594
4595 GDB does not have complex types.
4596
4597 Just return the complex as a float of that size. It won't work right
ebccb10b 4598 for the complex values, but at least it makes the file loadable. */
d07734e3
FF
4599
4600 if (n3 == 0 && n2 > 0)
4601 {
f52bde21 4602 return init_type (TYPE_CODE_FLT, n2, 0, NULL, objfile);
d07734e3
FF
4603 }
4604
4605 /* If the upper bound is -1, it must really be an unsigned int. */
4606
4607 else if (n2 == 0 && n3 == -1)
4608 {
f52bde21 4609 /* It is unsigned int or unsigned long. */
78934ba8
JK
4610 /* GCC 2.3.3 uses this for long long too, but that is just a GDB 3.5
4611 compatibility hack. */
f52bde21
JK
4612 return init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
4613 TYPE_FLAG_UNSIGNED, NULL, objfile);
d07734e3
FF
4614 }
4615
4616 /* Special case: char is defined (Who knows why) as a subrange of
4617 itself with range 0-127. */
4618 else if (self_subrange && n2 == 0 && n3 == 127)
f52bde21
JK
4619 return init_type (TYPE_CODE_INT, 1, 0, NULL, objfile);
4620
5e548861 4621 else if (current_symbol && SYMBOL_LANGUAGE (current_symbol) == language_chill
ec49fc98 4622 && !self_subrange)
5e548861
PB
4623 goto handle_true_range;
4624
f52bde21
JK
4625 /* We used to do this only for subrange of self or subrange of int. */
4626 else if (n2 == 0)
4627 {
4628 if (n3 < 0)
4629 /* n3 actually gives the size. */
4630 return init_type (TYPE_CODE_INT, - n3, TYPE_FLAG_UNSIGNED,
4631 NULL, objfile);
4632 if (n3 == 0xff)
4633 return init_type (TYPE_CODE_INT, 1, TYPE_FLAG_UNSIGNED, NULL, objfile);
4634 if (n3 == 0xffff)
4635 return init_type (TYPE_CODE_INT, 2, TYPE_FLAG_UNSIGNED, NULL, objfile);
4636
4637 /* -1 is used for the upper bound of (4 byte) "unsigned int" and
4638 "unsigned long", and we already checked for that,
4639 so don't need to test for it here. */
4640 }
4641 /* I think this is for Convex "long long". Since I don't know whether
4642 Convex sets self_subrange, I also accept that particular size regardless
4643 of self_subrange. */
4644 else if (n3 == 0 && n2 < 0
4645 && (self_subrange
4646 || n2 == - TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT))
4647 return init_type (TYPE_CODE_INT, - n2, 0, NULL, objfile);
d07734e3
FF
4648 else if (n2 == -n3 -1)
4649 {
f52bde21
JK
4650 if (n3 == 0x7f)
4651 return init_type (TYPE_CODE_INT, 1, 0, NULL, objfile);
4652 if (n3 == 0x7fff)
4653 return init_type (TYPE_CODE_INT, 2, 0, NULL, objfile);
4654 if (n3 == 0x7fffffff)
4655 return init_type (TYPE_CODE_INT, 4, 0, NULL, objfile);
d07734e3
FF
4656 }
4657
4658 /* We have a real range type on our hands. Allocate space and
4659 return a real pointer. */
e55a5796 4660 handle_true_range:
d07734e3 4661
d07734e3 4662 if (self_subrange)
ec49fc98
PB
4663 index_type = builtin_type_int;
4664 else
4665 index_type = *dbx_lookup_type (rangenums);
a8a69e63
FF
4666 if (index_type == NULL)
4667 {
f52bde21
JK
4668 /* Does this actually ever happen? Is that why we are worrying
4669 about dealing with it rather than just calling error_type? */
4670
4671 static struct type *range_type_index;
4672
a8a69e63 4673 complain (&range_type_base_complaint, rangenums[1]);
f52bde21
JK
4674 if (range_type_index == NULL)
4675 range_type_index =
4676 init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
4677 0, "range type index type", NULL);
4678 index_type = range_type_index;
a8a69e63 4679 }
d07734e3 4680
a8a69e63
FF
4681 result_type = create_range_type ((struct type *) NULL, index_type, n2, n3);
4682 return (result_type);
d07734e3
FF
4683}
4684
d07734e3
FF
4685/* Read in an argument list. This is a list of types, separated by commas
4686 and terminated with END. Return the list of types read in, or (struct type
4687 **)-1 if there is an error. */
4688
4689static struct type **
4690read_args (pp, end, objfile)
4691 char **pp;
4692 int end;
4693 struct objfile *objfile;
4694{
4695 /* FIXME! Remove this arbitrary limit! */
4696 struct type *types[1024], **rval; /* allow for fns of 1023 parameters */
4697 int n = 0;
4698
4699 while (**pp != end)
4700 {
4701 if (**pp != ',')
4702 /* Invalid argument list: no ','. */
4703 return (struct type **)-1;
e7177cc2 4704 (*pp)++;
2dd30c72 4705 STABS_CONTINUE (pp, objfile);
d07734e3
FF
4706 types[n++] = read_type (pp, objfile);
4707 }
e7177cc2 4708 (*pp)++; /* get past `end' (the ':' character) */
d07734e3
FF
4709
4710 if (n == 1)
4711 {
4712 rval = (struct type **) xmalloc (2 * sizeof (struct type *));
4713 }
4714 else if (TYPE_CODE (types[n-1]) != TYPE_CODE_VOID)
4715 {
4716 rval = (struct type **) xmalloc ((n + 1) * sizeof (struct type *));
4717 memset (rval + n, 0, sizeof (struct type *));
4718 }
4719 else
4720 {
4721 rval = (struct type **) xmalloc (n * sizeof (struct type *));
4722 }
4723 memcpy (rval, types, n * sizeof (struct type *));
4724 return rval;
4725}
9438d642
JK
4726\f
4727/* Common block handling. */
4728
4729/* List of symbols declared since the last BCOMM. This list is a tail
4730 of local_symbols. When ECOMM is seen, the symbols on the list
4731 are noted so their proper addresses can be filled in later,
4732 using the common block base address gotten from the assembler
4733 stabs. */
4734
4735static struct pending *common_block;
4736static int common_block_i;
4737
4738/* Name of the current common block. We get it from the BCOMM instead of the
4739 ECOMM to match IBM documentation (even though IBM puts the name both places
4740 like everyone else). */
4741static char *common_block_name;
4742
4743/* Process a N_BCOMM symbol. The storage for NAME is not guaranteed
4744 to remain after this function returns. */
4745
4746void
4747common_block_start (name, objfile)
4748 char *name;
4749 struct objfile *objfile;
4750{
4751 if (common_block_name != NULL)
4752 {
4753 static struct complaint msg = {
4754 "Invalid symbol data: common block within common block",
4755 0, 0};
4756 complain (&msg);
4757 }
4758 common_block = local_symbols;
4759 common_block_i = local_symbols ? local_symbols->nsyms : 0;
4760 common_block_name = obsavestring (name, strlen (name),
4761 &objfile -> symbol_obstack);
4762}
4763
4764/* Process a N_ECOMM symbol. */
4765
4766void
4767common_block_end (objfile)
4768 struct objfile *objfile;
4769{
4770 /* Symbols declared since the BCOMM are to have the common block
4771 start address added in when we know it. common_block and
4772 common_block_i point to the first symbol after the BCOMM in
4773 the local_symbols list; copy the list and hang it off the
4774 symbol for the common block name for later fixup. */
4775 int i;
4776 struct symbol *sym;
4777 struct pending *new = 0;
4778 struct pending *next;
4779 int j;
4780
4781 if (common_block_name == NULL)
4782 {
4783 static struct complaint msg = {"ECOMM symbol unmatched by BCOMM", 0, 0};
4784 complain (&msg);
4785 return;
4786 }
4787
4788 sym = (struct symbol *)
4789 obstack_alloc (&objfile -> symbol_obstack, sizeof (struct symbol));
4790 memset (sym, 0, sizeof (struct symbol));
ace4b8d7 4791 /* Note: common_block_name already saved on symbol_obstack */
9438d642
JK
4792 SYMBOL_NAME (sym) = common_block_name;
4793 SYMBOL_CLASS (sym) = LOC_BLOCK;
4794
4795 /* Now we copy all the symbols which have been defined since the BCOMM. */
4796
4797 /* Copy all the struct pendings before common_block. */
4798 for (next = local_symbols;
4799 next != NULL && next != common_block;
4800 next = next->next)
4801 {
4802 for (j = 0; j < next->nsyms; j++)
4803 add_symbol_to_list (next->symbol[j], &new);
4804 }
4805
4806 /* Copy however much of COMMON_BLOCK we need. If COMMON_BLOCK is
4807 NULL, it means copy all the local symbols (which we already did
4808 above). */
4809
4810 if (common_block != NULL)
4811 for (j = common_block_i; j < common_block->nsyms; j++)
4812 add_symbol_to_list (common_block->symbol[j], &new);
4813
fddb9bda 4814 SYMBOL_TYPE (sym) = (struct type *) new;
9438d642
JK
4815
4816 /* Should we be putting local_symbols back to what it was?
4817 Does it matter? */
4818
4819 i = hashname (SYMBOL_NAME (sym));
4820 SYMBOL_VALUE_CHAIN (sym) = global_sym_chain[i];
4821 global_sym_chain[i] = sym;
4822 common_block_name = NULL;
4823}
d07734e3
FF
4824
4825/* Add a common block's start address to the offset of each symbol
4826 declared to be in it (by being between a BCOMM/ECOMM pair that uses
4827 the common block name). */
4828
4829static void
4830fix_common_block (sym, valu)
4831 struct symbol *sym;
4832 int valu;
4833{
fddb9bda 4834 struct pending *next = (struct pending *) SYMBOL_TYPE (sym);
d07734e3
FF
4835 for ( ; next; next = next->next)
4836 {
4837 register int j;
4838 for (j = next->nsyms - 1; j >= 0; j--)
4839 SYMBOL_VALUE_ADDRESS (next->symbol[j]) += valu;
4840 }
4841}
4842
4843
4844\f
4845/* What about types defined as forward references inside of a small lexical
4846 scope? */
4847/* Add a type to the list of undefined types to be checked through
4848 once this file has been read in. */
4849
4850void
4851add_undefined_type (type)
4852 struct type *type;
4853{
4854 if (undef_types_length == undef_types_allocated)
4855 {
4856 undef_types_allocated *= 2;
4857 undef_types = (struct type **)
4858 xrealloc ((char *) undef_types,
4859 undef_types_allocated * sizeof (struct type *));
4860 }
4861 undef_types[undef_types_length++] = type;
4862}
4863
4864/* Go through each undefined type, see if it's still undefined, and fix it
4865 up if possible. We have two kinds of undefined types:
4866
4867 TYPE_CODE_ARRAY: Array whose target type wasn't defined yet.
4868 Fix: update array length using the element bounds
4869 and the target type's length.
4870 TYPE_CODE_STRUCT, TYPE_CODE_UNION: Structure whose fields were not
4871 yet defined at the time a pointer to it was made.
4872 Fix: Do a full lookup on the struct/union tag. */
4873void
4874cleanup_undefined_types ()
4875{
4876 struct type **type;
4877
4878 for (type = undef_types; type < undef_types + undef_types_length; type++)
4879 {
4880 switch (TYPE_CODE (*type))
4881 {
4882
4883 case TYPE_CODE_STRUCT:
4884 case TYPE_CODE_UNION:
4885 case TYPE_CODE_ENUM:
4886 {
dda398c3 4887 /* Check if it has been defined since. Need to do this here
5e548861 4888 as well as in check_typedef to deal with the (legitimate in
dda398c3
JK
4889 C though not C++) case of several types with the same name
4890 in different source files. */
d07734e3
FF
4891 if (TYPE_FLAGS (*type) & TYPE_FLAG_STUB)
4892 {
4893 struct pending *ppt;
4894 int i;
4895 /* Name of the type, without "struct" or "union" */
b2bebdb0 4896 char *typename = TYPE_TAG_NAME (*type);
d07734e3 4897
ea753d03
JK
4898 if (typename == NULL)
4899 {
4900 static struct complaint msg = {"need a type name", 0, 0};
4901 complain (&msg);
4902 break;
4903 }
d07734e3
FF
4904 for (ppt = file_symbols; ppt; ppt = ppt->next)
4905 {
4906 for (i = 0; i < ppt->nsyms; i++)
4907 {
4908 struct symbol *sym = ppt->symbol[i];
4909
4910 if (SYMBOL_CLASS (sym) == LOC_TYPEDEF
4911 && SYMBOL_NAMESPACE (sym) == STRUCT_NAMESPACE
4912 && (TYPE_CODE (SYMBOL_TYPE (sym)) ==
4913 TYPE_CODE (*type))
2e4964ad 4914 && STREQ (SYMBOL_NAME (sym), typename))
d07734e3
FF
4915 {
4916 memcpy (*type, SYMBOL_TYPE (sym),
4917 sizeof (struct type));
4918 }
4919 }
4920 }
4921 }
4922 }
4923 break;
4924
ea753d03 4925 default:
ea753d03
JK
4926 {
4927 static struct complaint msg = {"\
4928GDB internal error. cleanup_undefined_types with bad type %d.", 0, 0};
4929 complain (&msg, TYPE_CODE (*type));
4930 }
d07734e3
FF
4931 break;
4932 }
4933 }
dda398c3 4934
d07734e3
FF
4935 undef_types_length = 0;
4936}
4937
4938/* Scan through all of the global symbols defined in the object file,
4939 assigning values to the debugging symbols that need to be assigned
b1027aa4 4940 to. Get these symbols from the minimal symbol table. */
d07734e3 4941
b1027aa4
PS
4942void
4943scan_file_globals (objfile)
d07734e3
FF
4944 struct objfile *objfile;
4945{
4946 int hash;
4947 struct minimal_symbol *msymbol;
d719efc6 4948 struct symbol *sym, *prev, *rsym;
73b8e6a9 4949 struct objfile *resolve_objfile;
d07734e3 4950
73b8e6a9
PS
4951 /* SVR4 based linkers copy referenced global symbols from shared
4952 libraries to the main executable.
4953 If we are scanning the symbols for a shared library, try to resolve
4954 them from the minimal symbols of the main executable first. */
d07734e3 4955
73b8e6a9
PS
4956 if (symfile_objfile && objfile != symfile_objfile)
4957 resolve_objfile = symfile_objfile;
4958 else
4959 resolve_objfile = objfile;
d07734e3 4960
73b8e6a9
PS
4961 while (1)
4962 {
4963 /* Avoid expensive loop through all minimal symbols if there are
4964 no unresolved symbols. */
4965 for (hash = 0; hash < HASHSIZE; hash++)
f3806e3b 4966 {
73b8e6a9
PS
4967 if (global_sym_chain[hash])
4968 break;
f3806e3b 4969 }
73b8e6a9
PS
4970 if (hash >= HASHSIZE)
4971 return;
f3806e3b 4972
73b8e6a9
PS
4973 for (msymbol = resolve_objfile -> msymbols;
4974 msymbol && SYMBOL_NAME (msymbol) != NULL;
4975 msymbol++)
4976 {
4977 QUIT;
d07734e3 4978
73b8e6a9
PS
4979 /* Skip static symbols. */
4980 switch (MSYMBOL_TYPE (msymbol))
4981 {
4982 case mst_file_text:
4983 case mst_file_data:
4984 case mst_file_bss:
4985 continue;
4986 default:
4987 break;
4988 }
d07734e3 4989
73b8e6a9 4990 prev = NULL;
d07734e3 4991
73b8e6a9
PS
4992 /* Get the hash index and check all the symbols
4993 under that hash index. */
4994
4995 hash = hashname (SYMBOL_NAME (msymbol));
4996
4997 for (sym = global_sym_chain[hash]; sym;)
d07734e3 4998 {
73b8e6a9
PS
4999 if (SYMBOL_NAME (msymbol)[0] == SYMBOL_NAME (sym)[0] &&
5000 STREQ(SYMBOL_NAME (msymbol) + 1, SYMBOL_NAME (sym) + 1))
d07734e3 5001 {
b84b9183
JL
5002
5003 struct alias_list *aliases;
5004
73b8e6a9
PS
5005 /* Splice this symbol out of the hash chain and
5006 assign the value we have to it. */
5007 if (prev)
5008 {
5009 SYMBOL_VALUE_CHAIN (prev) = SYMBOL_VALUE_CHAIN (sym);
5010 }
5011 else
5012 {
5013 global_sym_chain[hash] = SYMBOL_VALUE_CHAIN (sym);
5014 }
5015
5016 /* Check to see whether we need to fix up a common block. */
5017 /* Note: this code might be executed several times for
5018 the same symbol if there are multiple references. */
d07734e3 5019
d719efc6
DP
5020 /* If symbol has aliases, do minimal symbol fixups for each.
5021 These live aliases/references weren't added to
5022 global_sym_chain hash but may also need to be fixed up. */
5023 /* FIXME: Maybe should have added aliases to the global chain, resolved symbol name, then treated aliases as normal
5024 symbols? Still, we wouldn't want to add_to_list. */
5025 /* Now do the same for each alias of this symbol */
b84b9183
JL
5026 rsym = sym;
5027 aliases = SYMBOL_ALIASES (sym);
5028 while (rsym)
73b8e6a9 5029 {
d719efc6 5030 if (SYMBOL_CLASS (rsym) == LOC_BLOCK)
b84b9183
JL
5031 {
5032 fix_common_block (rsym,
5033 SYMBOL_VALUE_ADDRESS (msymbol));
5034 }
d719efc6 5035 else
b84b9183
JL
5036 {
5037 SYMBOL_VALUE_ADDRESS (rsym)
d719efc6 5038 = SYMBOL_VALUE_ADDRESS (msymbol);
b84b9183 5039 }
d719efc6 5040 SYMBOL_SECTION (rsym) = SYMBOL_SECTION (msymbol);
b84b9183
JL
5041 if (aliases)
5042 {
5043 rsym = aliases->sym;
5044 aliases = aliases->next;
5045 }
5046 else
5047 rsym = NULL;
73b8e6a9 5048 }
b84b9183 5049
73b8e6a9
PS
5050
5051 if (prev)
5052 {
5053 sym = SYMBOL_VALUE_CHAIN (prev);
5054 }
5055 else
5056 {
5057 sym = global_sym_chain[hash];
5058 }
d07734e3
FF
5059 }
5060 else
5061 {
73b8e6a9
PS
5062 prev = sym;
5063 sym = SYMBOL_VALUE_CHAIN (sym);
d07734e3
FF
5064 }
5065 }
d07734e3 5066 }
73b8e6a9
PS
5067 if (resolve_objfile == objfile)
5068 break;
5069 resolve_objfile = objfile;
d07734e3 5070 }
02b40a19 5071
b1027aa4
PS
5072 /* Change the storage class of any remaining unresolved globals to
5073 LOC_UNRESOLVED and remove them from the chain. */
02b40a19
PS
5074 for (hash = 0; hash < HASHSIZE; hash++)
5075 {
5076 sym = global_sym_chain[hash];
5077 while (sym)
5078 {
b1027aa4
PS
5079 prev = sym;
5080 sym = SYMBOL_VALUE_CHAIN (sym);
02b40a19
PS
5081
5082 /* Change the symbol address from the misleading chain value
5083 to address zero. */
02b40a19 5084 SYMBOL_VALUE_ADDRESS (prev) = 0;
b1027aa4
PS
5085
5086 /* Complain about unresolved common block symbols. */
5087 if (SYMBOL_CLASS (prev) == LOC_STATIC)
5088 SYMBOL_CLASS (prev) = LOC_UNRESOLVED;
5089 else
5090 complain (&unresolved_sym_chain_complaint,
73b8e6a9 5091 objfile -> name, SYMBOL_NAME (prev));
02b40a19
PS
5092 }
5093 }
5094 memset (global_sym_chain, 0, sizeof (global_sym_chain));
d07734e3
FF
5095}
5096
5097/* Initialize anything that needs initializing when starting to read
5098 a fresh piece of a symbol file, e.g. reading in the stuff corresponding
5099 to a psymtab. */
5100
5101void
5102stabsread_init ()
5103{
5104}
5105
5106/* Initialize anything that needs initializing when a completely new
5107 symbol file is specified (not just adding some symbols from another
5108 file, e.g. a shared library). */
5109
5110void
5111stabsread_new_init ()
5112{
5113 /* Empty the hash table of global syms looking for values. */
5114 memset (global_sym_chain, 0, sizeof (global_sym_chain));
5115}
5116
5117/* Initialize anything that needs initializing at the same time as
5118 start_symtab() is called. */
5119
5120void start_stabs ()
5121{
5122 global_stabs = NULL; /* AIX COFF */
5123 /* Leave FILENUM of 0 free for builtin types and this file's types. */
5124 n_this_object_header_files = 1;
5125 type_vector_length = 0;
5126 type_vector = (struct type **) 0;
9438d642
JK
5127
5128 /* FIXME: If common_block_name is not already NULL, we should complain(). */
5129 common_block_name = NULL;
25200748
JK
5130
5131 os9k_stabs = 0;
d07734e3
FF
5132}
5133
5134/* Call after end_symtab() */
5135
5136void end_stabs ()
5137{
5138 if (type_vector)
5139 {
5140 free ((char *) type_vector);
5141 }
5142 type_vector = 0;
5143 type_vector_length = 0;
5144 previous_stab_code = 0;
5145}
5146
5147void
5148finish_global_stabs (objfile)
d07734e3
FF
5149 struct objfile *objfile;
5150{
5151 if (global_stabs)
5152 {
5153 patch_block_stabs (global_symbols, global_stabs, objfile);
5154 free ((PTR) global_stabs);
5155 global_stabs = NULL;
5156 }
5157}
5158
5159/* Initializer for this module */
5160
5161void
5162_initialize_stabsread ()
5163{
5164 undef_types_allocated = 20;
5165 undef_types_length = 0;
5166 undef_types = (struct type **)
5167 xmalloc (undef_types_allocated * sizeof (struct type *));
5168}
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