Commit | Line | Data |
---|---|---|
d07734e3 | 1 | /* Support routines for decoding "stabs" debugging information format. |
02b40a19 | 2 | Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995 |
d07734e3 FF |
3 | Free Software Foundation, Inc. |
4 | ||
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
6c9638b4 | 19 | Foundation, 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 | ||
58 | struct 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 | ||
d07734e3 FF |
78 | static struct type * |
79 | dbx_alloc_type PARAMS ((int [2], struct objfile *)); | |
80 | ||
ea753d03 JK |
81 | static long read_huge_number PARAMS ((char **, int, int *)); |
82 | ||
2dd30c72 | 83 | static struct type *error_type PARAMS ((char **, struct objfile *)); |
d07734e3 FF |
84 | |
85 | static void | |
86 | patch_block_stabs PARAMS ((struct pending *, struct pending_stabs *, | |
87 | struct objfile *)); | |
88 | ||
89 | static void | |
90 | fix_common_block PARAMS ((struct symbol *, int)); | |
91 | ||
ea753d03 JK |
92 | static int |
93 | read_type_number PARAMS ((char **, int *)); | |
94 | ||
d07734e3 FF |
95 | static struct type * |
96 | read_range_type PARAMS ((char **, int [2], struct objfile *)); | |
97 | ||
98 | static struct type * | |
99 | read_sun_builtin_type PARAMS ((char **, int [2], struct objfile *)); | |
100 | ||
101 | static struct type * | |
102 | read_sun_floating_type PARAMS ((char **, int [2], struct objfile *)); | |
103 | ||
104 | static struct type * | |
105 | read_enum_type PARAMS ((char **, struct type *, struct objfile *)); | |
106 | ||
dd469789 | 107 | static struct type * |
a387370d | 108 | rs6000_builtin_type PARAMS ((int)); |
dd469789 | 109 | |
e7177cc2 FF |
110 | static int |
111 | read_member_functions PARAMS ((struct field_info *, char **, struct type *, | |
112 | struct objfile *)); | |
113 | ||
114 | static int | |
115 | read_struct_fields PARAMS ((struct field_info *, char **, struct type *, | |
116 | struct objfile *)); | |
117 | ||
118 | static int | |
119 | read_baseclasses PARAMS ((struct field_info *, char **, struct type *, | |
120 | struct objfile *)); | |
121 | ||
122 | static int | |
123 | read_tilde_fields PARAMS ((struct field_info *, char **, struct type *, | |
124 | struct objfile *)); | |
125 | ||
126 | static int | |
127 | attach_fn_fields_to_type PARAMS ((struct field_info *, struct type *)); | |
128 | ||
129 | static int | |
130 | attach_fields_to_type PARAMS ((struct field_info *, struct type *, | |
131 | struct objfile *)); | |
132 | ||
d07734e3 FF |
133 | static struct type * |
134 | read_struct_type PARAMS ((char **, struct type *, struct objfile *)); | |
135 | ||
136 | static struct type * | |
137 | read_array_type PARAMS ((char **, struct type *, struct objfile *)); | |
138 | ||
139 | static struct type ** | |
140 | read_args PARAMS ((char **, int, struct objfile *)); | |
141 | ||
ea753d03 | 142 | static int |
e7177cc2 FF |
143 | read_cpp_abbrev PARAMS ((struct field_info *, char **, struct type *, |
144 | struct objfile *)); | |
145 | ||
d07734e3 FF |
146 | static const char vptr_name[] = { '_','v','p','t','r',CPLUS_MARKER,'\0' }; |
147 | static const char vb_name[] = { '_','v','b',CPLUS_MARKER,'\0' }; | |
148 | ||
149 | /* Define this as 1 if a pcc declaration of a char or short argument | |
150 | gives the correct address. Otherwise assume pcc gives the | |
151 | address of the corresponding int, which is not the same on a | |
152 | big-endian machine. */ | |
153 | ||
154 | #ifndef BELIEVE_PCC_PROMOTION | |
155 | #define BELIEVE_PCC_PROMOTION 0 | |
156 | #endif | |
157 | ||
d07734e3 FF |
158 | struct complaint invalid_cpp_abbrev_complaint = |
159 | {"invalid C++ abbreviation `%s'", 0, 0}; | |
160 | ||
161 | struct complaint invalid_cpp_type_complaint = | |
162 | {"C++ abbreviated type name unknown at symtab pos %d", 0, 0}; | |
163 | ||
164 | struct complaint member_fn_complaint = | |
165 | {"member function type missing, got '%c'", 0, 0}; | |
166 | ||
167 | struct complaint const_vol_complaint = | |
168 | {"const/volatile indicator missing, got '%c'", 0, 0}; | |
169 | ||
170 | struct complaint error_type_complaint = | |
171 | {"debug info mismatch between compiler and debugger", 0, 0}; | |
172 | ||
173 | struct complaint invalid_member_complaint = | |
174 | {"invalid (minimal) member type data format at symtab pos %d.", 0, 0}; | |
175 | ||
176 | struct complaint range_type_base_complaint = | |
177 | {"base type %d of range type is not defined", 0, 0}; | |
178 | ||
179 | struct complaint reg_value_complaint = | |
180 | {"register number too large in symbol %s", 0, 0}; | |
181 | ||
2a021f21 JG |
182 | struct complaint vtbl_notfound_complaint = |
183 | {"virtual function table pointer not found when defining class `%s'", 0, 0}; | |
184 | ||
185 | struct complaint unrecognized_cplus_name_complaint = | |
186 | {"Unknown C++ symbol name `%s'", 0, 0}; | |
187 | ||
dd469789 | 188 | struct complaint rs6000_builtin_complaint = |
a387370d | 189 | {"Unknown builtin type %d", 0, 0}; |
dd469789 | 190 | |
02b40a19 | 191 | struct complaint unresolved_sym_chain_complaint = |
b1027aa4 | 192 | {"%s: common block `%s' from global_sym_chain unresolved", 0, 0}; |
02b40a19 | 193 | |
e7177cc2 FF |
194 | struct complaint stabs_general_complaint = |
195 | {"%s", 0, 0}; | |
196 | ||
d07734e3 FF |
197 | /* Make a list of forward references which haven't been defined. */ |
198 | ||
199 | static struct type **undef_types; | |
200 | static int undef_types_allocated; | |
201 | static int undef_types_length; | |
5e548861 | 202 | static struct symbol *current_symbol = NULL; |
d07734e3 | 203 | |
e7177cc2 | 204 | /* Check for and handle cretinous stabs symbol name continuation! */ |
2dd30c72 | 205 | #define STABS_CONTINUE(pp,objfile) \ |
e7177cc2 | 206 | do { \ |
91a0575c | 207 | if (**(pp) == '\\' || (**(pp) == '?' && (*(pp))[1] == '\0')) \ |
2dd30c72 | 208 | *(pp) = next_symbol_text (objfile); \ |
e7177cc2 | 209 | } while (0) |
d07734e3 | 210 | \f |
25200748 JK |
211 | /* FIXME: These probably should be our own types (like rs6000_builtin_type |
212 | has its own types) rather than builtin_type_*. */ | |
213 | static struct type **os9k_type_vector[] = { | |
214 | 0, | |
215 | &builtin_type_int, | |
216 | &builtin_type_char, | |
217 | &builtin_type_long, | |
218 | &builtin_type_short, | |
219 | &builtin_type_unsigned_char, | |
220 | &builtin_type_unsigned_short, | |
221 | &builtin_type_unsigned_long, | |
222 | &builtin_type_unsigned_int, | |
223 | &builtin_type_float, | |
224 | &builtin_type_double, | |
225 | &builtin_type_void, | |
226 | &builtin_type_long_double | |
227 | }; | |
228 | ||
229 | static void os9k_init_type_vector PARAMS ((struct type **)); | |
230 | ||
231 | static void | |
232 | os9k_init_type_vector(tv) | |
233 | struct type **tv; | |
234 | { | |
235 | int i; | |
236 | for (i=0; i<sizeof(os9k_type_vector)/sizeof(struct type **); i++) | |
237 | tv[i] = (os9k_type_vector[i] == 0 ? 0 : *(os9k_type_vector[i])); | |
238 | } | |
239 | ||
d07734e3 FF |
240 | /* Look up a dbx type-number pair. Return the address of the slot |
241 | where the type for that number-pair is stored. | |
242 | The number-pair is in TYPENUMS. | |
243 | ||
244 | This can be used for finding the type associated with that pair | |
245 | or for associating a new type with the pair. */ | |
246 | ||
247 | struct type ** | |
248 | dbx_lookup_type (typenums) | |
249 | int typenums[2]; | |
250 | { | |
251 | register int filenum = typenums[0]; | |
252 | register int index = typenums[1]; | |
253 | unsigned old_len; | |
254 | register int real_filenum; | |
255 | register struct header_file *f; | |
256 | int f_orig_length; | |
257 | ||
258 | if (filenum == -1) /* -1,-1 is for temporary types. */ | |
259 | return 0; | |
260 | ||
261 | if (filenum < 0 || filenum >= n_this_object_header_files) | |
ea753d03 JK |
262 | { |
263 | static struct complaint msg = {"\ | |
264 | Invalid symbol data: type number (%d,%d) out of range at symtab pos %d.", | |
265 | 0, 0}; | |
266 | complain (&msg, filenum, index, symnum); | |
267 | goto error_return; | |
268 | } | |
d07734e3 FF |
269 | |
270 | if (filenum == 0) | |
271 | { | |
a387370d JG |
272 | if (index < 0) |
273 | { | |
274 | /* Caller wants address of address of type. We think | |
275 | that negative (rs6k builtin) types will never appear as | |
276 | "lvalues", (nor should they), so we stuff the real type | |
277 | pointer into a temp, and return its address. If referenced, | |
278 | this will do the right thing. */ | |
279 | static struct type *temp_type; | |
280 | ||
281 | temp_type = rs6000_builtin_type(index); | |
282 | return &temp_type; | |
283 | } | |
284 | ||
d07734e3 FF |
285 | /* Type is defined outside of header files. |
286 | Find it in this object file's type vector. */ | |
287 | if (index >= type_vector_length) | |
288 | { | |
289 | old_len = type_vector_length; | |
290 | if (old_len == 0) | |
291 | { | |
292 | type_vector_length = INITIAL_TYPE_VECTOR_LENGTH; | |
293 | type_vector = (struct type **) | |
294 | malloc (type_vector_length * sizeof (struct type *)); | |
295 | } | |
296 | while (index >= type_vector_length) | |
297 | { | |
298 | type_vector_length *= 2; | |
299 | } | |
300 | type_vector = (struct type **) | |
301 | xrealloc ((char *) type_vector, | |
302 | (type_vector_length * sizeof (struct type *))); | |
303 | memset (&type_vector[old_len], 0, | |
304 | (type_vector_length - old_len) * sizeof (struct type *)); | |
25200748 JK |
305 | |
306 | if (os9k_stabs) | |
307 | /* Deal with OS9000 fundamental types. */ | |
308 | os9k_init_type_vector (type_vector); | |
d07734e3 FF |
309 | } |
310 | return (&type_vector[index]); | |
311 | } | |
312 | else | |
313 | { | |
314 | real_filenum = this_object_header_files[filenum]; | |
315 | ||
316 | if (real_filenum >= n_header_files) | |
317 | { | |
ea753d03 JK |
318 | struct type *temp_type; |
319 | struct type **temp_type_p; | |
320 | ||
321 | warning ("GDB internal error: bad real_filenum"); | |
322 | ||
323 | error_return: | |
324 | temp_type = init_type (TYPE_CODE_ERROR, 0, 0, NULL, NULL); | |
325 | temp_type_p = (struct type **) xmalloc (sizeof (struct type *)); | |
326 | *temp_type_p = temp_type; | |
327 | return temp_type_p; | |
d07734e3 FF |
328 | } |
329 | ||
330 | f = &header_files[real_filenum]; | |
331 | ||
332 | f_orig_length = f->length; | |
333 | if (index >= f_orig_length) | |
334 | { | |
335 | while (index >= f->length) | |
336 | { | |
337 | f->length *= 2; | |
338 | } | |
339 | f->vector = (struct type **) | |
340 | xrealloc ((char *) f->vector, f->length * sizeof (struct type *)); | |
341 | memset (&f->vector[f_orig_length], 0, | |
342 | (f->length - f_orig_length) * sizeof (struct type *)); | |
343 | } | |
344 | return (&f->vector[index]); | |
345 | } | |
346 | } | |
347 | ||
348 | /* Make sure there is a type allocated for type numbers TYPENUMS | |
349 | and return the type object. | |
350 | This can create an empty (zeroed) type object. | |
351 | TYPENUMS may be (-1, -1) to return a new type object that is not | |
352 | put into the type vector, and so may not be referred to by number. */ | |
353 | ||
354 | static struct type * | |
355 | dbx_alloc_type (typenums, objfile) | |
356 | int typenums[2]; | |
357 | struct objfile *objfile; | |
358 | { | |
359 | register struct type **type_addr; | |
360 | ||
361 | if (typenums[0] == -1) | |
362 | { | |
363 | return (alloc_type (objfile)); | |
364 | } | |
365 | ||
366 | type_addr = dbx_lookup_type (typenums); | |
367 | ||
368 | /* If we are referring to a type not known at all yet, | |
369 | allocate an empty type for it. | |
370 | We will fill it in later if we find out how. */ | |
371 | if (*type_addr == 0) | |
372 | { | |
373 | *type_addr = alloc_type (objfile); | |
374 | } | |
375 | ||
376 | return (*type_addr); | |
377 | } | |
378 | ||
379 | /* for all the stabs in a given stab vector, build appropriate types | |
380 | and fix their symbols in given symbol vector. */ | |
381 | ||
382 | static void | |
383 | patch_block_stabs (symbols, stabs, objfile) | |
384 | struct pending *symbols; | |
385 | struct pending_stabs *stabs; | |
386 | struct objfile *objfile; | |
387 | { | |
388 | int ii; | |
389 | char *name; | |
390 | char *pp; | |
391 | struct symbol *sym; | |
392 | ||
393 | if (stabs) | |
394 | { | |
395 | ||
396 | /* for all the stab entries, find their corresponding symbols and | |
397 | patch their types! */ | |
398 | ||
399 | for (ii = 0; ii < stabs->count; ++ii) | |
400 | { | |
401 | name = stabs->stab[ii]; | |
402 | pp = (char*) strchr (name, ':'); | |
2fb58b98 KH |
403 | while (pp[1] == ':') |
404 | { | |
405 | pp += 2; | |
406 | pp = (char *)strchr(pp, ':'); | |
407 | } | |
d07734e3 FF |
408 | sym = find_symbol_in_list (symbols, name, pp-name); |
409 | if (!sym) | |
410 | { | |
553e1862 JK |
411 | /* FIXME-maybe: it would be nice if we noticed whether |
412 | the variable was defined *anywhere*, not just whether | |
413 | it is defined in this compilation unit. But neither | |
414 | xlc or GCC seem to need such a definition, and until | |
415 | we do psymtabs (so that the minimal symbols from all | |
416 | compilation units are available now), I'm not sure | |
417 | how to get the information. */ | |
acdec954 | 418 | |
0848ad1c JK |
419 | /* On xcoff, if a global is defined and never referenced, |
420 | ld will remove it from the executable. There is then | |
421 | a N_GSYM stab for it, but no regular (C_EXT) symbol. */ | |
422 | sym = (struct symbol *) | |
423 | obstack_alloc (&objfile->symbol_obstack, | |
424 | sizeof (struct symbol)); | |
425 | ||
426 | memset (sym, 0, sizeof (struct symbol)); | |
427 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
428 | SYMBOL_CLASS (sym) = LOC_OPTIMIZED_OUT; | |
429 | SYMBOL_NAME (sym) = | |
430 | obstack_copy0 (&objfile->symbol_obstack, name, pp - name); | |
431 | pp += 2; | |
432 | if (*(pp-1) == 'F' || *(pp-1) == 'f') | |
433 | { | |
434 | /* I don't think the linker does this with functions, | |
435 | so as far as I know this is never executed. | |
436 | But it doesn't hurt to check. */ | |
437 | SYMBOL_TYPE (sym) = | |
438 | lookup_function_type (read_type (&pp, objfile)); | |
439 | } | |
440 | else | |
441 | { | |
442 | SYMBOL_TYPE (sym) = read_type (&pp, objfile); | |
443 | } | |
444 | add_symbol_to_list (sym, &global_symbols); | |
d07734e3 FF |
445 | } |
446 | else | |
447 | { | |
448 | pp += 2; | |
449 | if (*(pp-1) == 'F' || *(pp-1) == 'f') | |
450 | { | |
451 | SYMBOL_TYPE (sym) = | |
452 | lookup_function_type (read_type (&pp, objfile)); | |
453 | } | |
454 | else | |
455 | { | |
456 | SYMBOL_TYPE (sym) = read_type (&pp, objfile); | |
457 | } | |
458 | } | |
459 | } | |
460 | } | |
461 | } | |
462 | ||
463 | \f | |
464 | /* Read a number by which a type is referred to in dbx data, | |
465 | or perhaps read a pair (FILENUM, TYPENUM) in parentheses. | |
466 | Just a single number N is equivalent to (0,N). | |
467 | Return the two numbers by storing them in the vector TYPENUMS. | |
ea753d03 | 468 | TYPENUMS will then be used as an argument to dbx_lookup_type. |
d07734e3 | 469 | |
ea753d03 JK |
470 | Returns 0 for success, -1 for error. */ |
471 | ||
472 | static int | |
d07734e3 FF |
473 | read_type_number (pp, typenums) |
474 | register char **pp; | |
475 | register int *typenums; | |
476 | { | |
ea753d03 | 477 | int nbits; |
d07734e3 FF |
478 | if (**pp == '(') |
479 | { | |
480 | (*pp)++; | |
ea753d03 JK |
481 | typenums[0] = read_huge_number (pp, ',', &nbits); |
482 | if (nbits != 0) return -1; | |
483 | typenums[1] = read_huge_number (pp, ')', &nbits); | |
484 | if (nbits != 0) return -1; | |
d07734e3 FF |
485 | } |
486 | else | |
487 | { | |
488 | typenums[0] = 0; | |
ea753d03 JK |
489 | typenums[1] = read_huge_number (pp, 0, &nbits); |
490 | if (nbits != 0) return -1; | |
d07734e3 | 491 | } |
ea753d03 | 492 | return 0; |
d07734e3 FF |
493 | } |
494 | ||
495 | \f | |
28f851f9 | 496 | #if !defined (REG_STRUCT_HAS_ADDR) |
84ad95c1 | 497 | #define REG_STRUCT_HAS_ADDR(gcc_p,type) 0 |
28f851f9 JK |
498 | #endif |
499 | ||
d07734e3 FF |
500 | /* ARGSUSED */ |
501 | struct symbol * | |
502 | define_symbol (valu, string, desc, type, objfile) | |
cef4c2e7 | 503 | CORE_ADDR valu; |
d07734e3 FF |
504 | char *string; |
505 | int desc; | |
506 | int type; | |
507 | struct objfile *objfile; | |
508 | { | |
509 | register struct symbol *sym; | |
510 | char *p = (char *) strchr (string, ':'); | |
511 | int deftype; | |
512 | int synonym = 0; | |
513 | register int i; | |
d07734e3 FF |
514 | |
515 | /* We would like to eliminate nameless symbols, but keep their types. | |
516 | E.g. stab entry ":t10=*2" should produce a type 10, which is a pointer | |
94daba7f | 517 | to type 2, but, should not create a symbol to address that type. Since |
d07734e3 FF |
518 | the symbol will be nameless, there is no way any user can refer to it. */ |
519 | ||
520 | int nameless; | |
521 | ||
522 | /* Ignore syms with empty names. */ | |
523 | if (string[0] == 0) | |
524 | return 0; | |
525 | ||
526 | /* Ignore old-style symbols from cc -go */ | |
527 | if (p == 0) | |
528 | return 0; | |
529 | ||
2fb58b98 KH |
530 | while (p[1] == ':') |
531 | { | |
532 | p += 2; | |
533 | p = strchr(p, ':'); | |
534 | } | |
535 | ||
d07734e3 | 536 | /* If a nameless stab entry, all we need is the type, not the symbol. |
94daba7f FF |
537 | e.g. ":t10=*2" or a nameless enum like " :T16=ered:0,green:1,blue:2,;" */ |
538 | nameless = (p == string || ((string[0] == ' ') && (string[1] == ':'))); | |
d07734e3 | 539 | |
5e548861 | 540 | current_symbol = sym = (struct symbol *) |
d07734e3 | 541 | obstack_alloc (&objfile -> symbol_obstack, sizeof (struct symbol)); |
c02a37ea | 542 | memset (sym, 0, sizeof (struct symbol)); |
d07734e3 | 543 | |
a66e8382 SG |
544 | switch (type & N_TYPE) |
545 | { | |
546 | case N_TEXT: | |
547 | SYMBOL_SECTION(sym) = SECT_OFF_TEXT; | |
548 | break; | |
549 | case N_DATA: | |
550 | SYMBOL_SECTION(sym) = SECT_OFF_DATA; | |
551 | break; | |
552 | case N_BSS: | |
553 | SYMBOL_SECTION(sym) = SECT_OFF_BSS; | |
554 | break; | |
555 | } | |
556 | ||
d07734e3 FF |
557 | if (processing_gcc_compilation) |
558 | { | |
559 | /* GCC 2.x puts the line number in desc. SunOS apparently puts in the | |
560 | number of bytes occupied by a type or object, which we ignore. */ | |
561 | SYMBOL_LINE(sym) = desc; | |
562 | } | |
563 | else | |
564 | { | |
565 | SYMBOL_LINE(sym) = 0; /* unknown */ | |
566 | } | |
567 | ||
568 | if (string[0] == CPLUS_MARKER) | |
569 | { | |
570 | /* Special GNU C++ names. */ | |
571 | switch (string[1]) | |
572 | { | |
573 | case 't': | |
574 | SYMBOL_NAME (sym) = obsavestring ("this", strlen ("this"), | |
575 | &objfile -> symbol_obstack); | |
576 | break; | |
577 | ||
578 | case 'v': /* $vtbl_ptr_type */ | |
579 | /* Was: SYMBOL_NAME (sym) = "vptr"; */ | |
580 | goto normal; | |
581 | ||
582 | case 'e': | |
583 | SYMBOL_NAME (sym) = obsavestring ("eh_throw", strlen ("eh_throw"), | |
584 | &objfile -> symbol_obstack); | |
585 | break; | |
586 | ||
587 | case '_': | |
588 | /* This was an anonymous type that was never fixed up. */ | |
589 | goto normal; | |
590 | ||
b9e58503 PS |
591 | #ifdef STATIC_TRANSFORM_NAME |
592 | case 'X': | |
593 | /* SunPRO (3.0 at least) static variable encoding. */ | |
594 | goto normal; | |
595 | #endif | |
596 | ||
d07734e3 | 597 | default: |
b646b438 | 598 | complain (&unrecognized_cplus_name_complaint, string); |
2a021f21 | 599 | goto normal; /* Do *something* with it */ |
d07734e3 FF |
600 | } |
601 | } | |
602 | else | |
603 | { | |
604 | normal: | |
2e4964ad | 605 | SYMBOL_LANGUAGE (sym) = current_subfile -> language; |
d07734e3 FF |
606 | SYMBOL_NAME (sym) = (char *) |
607 | obstack_alloc (&objfile -> symbol_obstack, ((p - string) + 1)); | |
ade40d31 | 608 | /* Open-coded memcpy--saves function call time. */ |
2e4964ad FF |
609 | /* FIXME: Does it really? Try replacing with simple strcpy and |
610 | try it on an executable with a large symbol table. */ | |
ade40d31 RP |
611 | /* FIXME: considering that gcc can open code memcpy anyway, I |
612 | doubt it. xoxorich. */ | |
d07734e3 FF |
613 | { |
614 | register char *p1 = string; | |
615 | register char *p2 = SYMBOL_NAME (sym); | |
616 | while (p1 != p) | |
617 | { | |
618 | *p2++ = *p1++; | |
619 | } | |
620 | *p2++ = '\0'; | |
621 | } | |
2e4964ad FF |
622 | |
623 | /* If this symbol is from a C++ compilation, then attempt to cache the | |
624 | demangled form for future reference. This is a typical time versus | |
625 | space tradeoff, that was decided in favor of time because it sped up | |
626 | C++ symbol lookups by a factor of about 20. */ | |
627 | ||
7532cf10 | 628 | SYMBOL_INIT_DEMANGLED_NAME (sym, &objfile->symbol_obstack); |
d07734e3 FF |
629 | } |
630 | p++; | |
9b280a7f | 631 | |
d07734e3 | 632 | /* Determine the type of name being defined. */ |
ea753d03 JK |
633 | #if 0 |
634 | /* Getting GDB to correctly skip the symbol on an undefined symbol | |
635 | descriptor and not ever dump core is a very dodgy proposition if | |
636 | we do things this way. I say the acorn RISC machine can just | |
637 | fix their compiler. */ | |
d07734e3 FF |
638 | /* The Acorn RISC machine's compiler can put out locals that don't |
639 | start with "234=" or "(3,4)=", so assume anything other than the | |
640 | deftypes we know how to handle is a local. */ | |
d07734e3 | 641 | if (!strchr ("cfFGpPrStTvVXCR", *p)) |
ea753d03 JK |
642 | #else |
643 | if (isdigit (*p) || *p == '(' || *p == '-') | |
644 | #endif | |
d07734e3 FF |
645 | deftype = 'l'; |
646 | else | |
647 | deftype = *p++; | |
648 | ||
59d69506 | 649 | switch (deftype) |
d07734e3 | 650 | { |
59d69506 JK |
651 | case 'c': |
652 | /* c is a special case, not followed by a type-number. | |
653 | SYMBOL:c=iVALUE for an integer constant symbol. | |
654 | SYMBOL:c=rVALUE for a floating constant symbol. | |
655 | SYMBOL:c=eTYPE,INTVALUE for an enum constant symbol. | |
656 | e.g. "b:c=e6,0" for "const b = blob1" | |
657 | (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */ | |
ea753d03 JK |
658 | if (*p != '=') |
659 | { | |
660 | SYMBOL_CLASS (sym) = LOC_CONST; | |
2dd30c72 | 661 | SYMBOL_TYPE (sym) = error_type (&p, objfile); |
ea753d03 JK |
662 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; |
663 | add_symbol_to_list (sym, &file_symbols); | |
664 | return sym; | |
665 | } | |
666 | ++p; | |
d07734e3 FF |
667 | switch (*p++) |
668 | { | |
669 | case 'r': | |
670 | { | |
671 | double d = atof (p); | |
672 | char *dbl_valu; | |
673 | ||
bf5c0d64 JK |
674 | /* FIXME-if-picky-about-floating-accuracy: Should be using |
675 | target arithmetic to get the value. real.c in GCC | |
676 | probably has the necessary code. */ | |
677 | ||
f52bde21 JK |
678 | /* FIXME: lookup_fundamental_type is a hack. We should be |
679 | creating a type especially for the type of float constants. | |
bf5c0d64 | 680 | Problem is, what type should it be? |
f52bde21 JK |
681 | |
682 | Also, what should the name of this type be? Should we | |
683 | be using 'S' constants (see stabs.texinfo) instead? */ | |
684 | ||
d07734e3 FF |
685 | SYMBOL_TYPE (sym) = lookup_fundamental_type (objfile, |
686 | FT_DBL_PREC_FLOAT); | |
687 | dbl_valu = (char *) | |
bf5c0d64 JK |
688 | obstack_alloc (&objfile -> symbol_obstack, |
689 | TYPE_LENGTH (SYMBOL_TYPE (sym))); | |
73edb321 | 690 | store_floating (dbl_valu, TYPE_LENGTH (SYMBOL_TYPE (sym)), d); |
d07734e3 FF |
691 | SYMBOL_VALUE_BYTES (sym) = dbl_valu; |
692 | SYMBOL_CLASS (sym) = LOC_CONST_BYTES; | |
693 | } | |
694 | break; | |
695 | case 'i': | |
696 | { | |
f52bde21 JK |
697 | /* Defining integer constants this way is kind of silly, |
698 | since 'e' constants allows the compiler to give not | |
699 | only the value, but the type as well. C has at least | |
700 | int, long, unsigned int, and long long as constant | |
701 | types; other languages probably should have at least | |
702 | unsigned as well as signed constants. */ | |
703 | ||
704 | /* We just need one int constant type for all objfiles. | |
705 | It doesn't depend on languages or anything (arguably its | |
706 | name should be a language-specific name for a type of | |
707 | that size, but I'm inclined to say that if the compiler | |
708 | wants a nice name for the type, it can use 'e'). */ | |
709 | static struct type *int_const_type; | |
710 | ||
711 | /* Yes, this is as long as a *host* int. That is because we | |
712 | use atoi. */ | |
713 | if (int_const_type == NULL) | |
714 | int_const_type = | |
715 | init_type (TYPE_CODE_INT, | |
716 | sizeof (int) * HOST_CHAR_BIT / TARGET_CHAR_BIT, 0, | |
717 | "integer constant", | |
718 | (struct objfile *)NULL); | |
719 | SYMBOL_TYPE (sym) = int_const_type; | |
d07734e3 FF |
720 | SYMBOL_VALUE (sym) = atoi (p); |
721 | SYMBOL_CLASS (sym) = LOC_CONST; | |
722 | } | |
723 | break; | |
724 | case 'e': | |
f52bde21 JK |
725 | /* SYMBOL:c=eTYPE,INTVALUE for a constant symbol whose value |
726 | can be represented as integral. | |
d07734e3 FF |
727 | e.g. "b:c=e6,0" for "const b = blob1" |
728 | (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */ | |
729 | { | |
d07734e3 | 730 | SYMBOL_CLASS (sym) = LOC_CONST; |
f52bde21 JK |
731 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
732 | ||
733 | if (*p != ',') | |
734 | { | |
2dd30c72 | 735 | SYMBOL_TYPE (sym) = error_type (&p, objfile); |
f52bde21 JK |
736 | break; |
737 | } | |
738 | ++p; | |
739 | ||
740 | /* If the value is too big to fit in an int (perhaps because | |
741 | it is unsigned), or something like that, we silently get | |
742 | a bogus value. The type and everything else about it is | |
743 | correct. Ideally, we should be using whatever we have | |
744 | available for parsing unsigned and long long values, | |
745 | however. */ | |
746 | SYMBOL_VALUE (sym) = atoi (p); | |
d07734e3 FF |
747 | } |
748 | break; | |
749 | default: | |
ff580c7b | 750 | { |
ff580c7b | 751 | SYMBOL_CLASS (sym) = LOC_CONST; |
2dd30c72 | 752 | SYMBOL_TYPE (sym) = error_type (&p, objfile); |
ff580c7b | 753 | } |
d07734e3 FF |
754 | } |
755 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
756 | add_symbol_to_list (sym, &file_symbols); | |
757 | return sym; | |
d07734e3 | 758 | |
d07734e3 FF |
759 | case 'C': |
760 | /* The name of a caught exception. */ | |
59d69506 | 761 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
d07734e3 FF |
762 | SYMBOL_CLASS (sym) = LOC_LABEL; |
763 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
764 | SYMBOL_VALUE_ADDRESS (sym) = valu; | |
765 | add_symbol_to_list (sym, &local_symbols); | |
766 | break; | |
767 | ||
768 | case 'f': | |
769 | /* A static function definition. */ | |
59d69506 | 770 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
d07734e3 FF |
771 | SYMBOL_CLASS (sym) = LOC_BLOCK; |
772 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
773 | add_symbol_to_list (sym, &file_symbols); | |
774 | /* fall into process_function_types. */ | |
775 | ||
776 | process_function_types: | |
777 | /* Function result types are described as the result type in stabs. | |
778 | We need to convert this to the function-returning-type-X type | |
779 | in GDB. E.g. "int" is converted to "function returning int". */ | |
780 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_FUNC) | |
7c606261 | 781 | SYMBOL_TYPE (sym) = lookup_function_type (SYMBOL_TYPE (sym)); |
d07734e3 FF |
782 | /* fall into process_prototype_types */ |
783 | ||
784 | process_prototype_types: | |
785 | /* Sun acc puts declared types of arguments here. We don't care | |
786 | about their actual types (FIXME -- we should remember the whole | |
787 | function prototype), but the list may define some new types | |
788 | that we have to remember, so we must scan it now. */ | |
789 | while (*p == ';') { | |
790 | p++; | |
791 | read_type (&p, objfile); | |
792 | } | |
793 | break; | |
794 | ||
795 | case 'F': | |
796 | /* A global function definition. */ | |
59d69506 | 797 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
d07734e3 FF |
798 | SYMBOL_CLASS (sym) = LOC_BLOCK; |
799 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
800 | add_symbol_to_list (sym, &global_symbols); | |
801 | goto process_function_types; | |
802 | ||
803 | case 'G': | |
804 | /* For a class G (global) symbol, it appears that the | |
805 | value is not correct. It is necessary to search for the | |
806 | corresponding linker definition to find the value. | |
807 | These definitions appear at the end of the namelist. */ | |
59d69506 | 808 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
d07734e3 FF |
809 | i = hashname (SYMBOL_NAME (sym)); |
810 | SYMBOL_VALUE_CHAIN (sym) = global_sym_chain[i]; | |
811 | global_sym_chain[i] = sym; | |
812 | SYMBOL_CLASS (sym) = LOC_STATIC; | |
813 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
814 | add_symbol_to_list (sym, &global_symbols); | |
815 | break; | |
816 | ||
817 | /* This case is faked by a conditional above, | |
818 | when there is no code letter in the dbx data. | |
819 | Dbx data never actually contains 'l'. */ | |
d9389f37 | 820 | case 's': |
d07734e3 | 821 | case 'l': |
59d69506 | 822 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
d07734e3 FF |
823 | SYMBOL_CLASS (sym) = LOC_LOCAL; |
824 | SYMBOL_VALUE (sym) = valu; | |
825 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
826 | add_symbol_to_list (sym, &local_symbols); | |
827 | break; | |
828 | ||
829 | case 'p': | |
59d69506 JK |
830 | if (*p == 'F') |
831 | /* pF is a two-letter code that means a function parameter in Fortran. | |
832 | The type-number specifies the type of the return value. | |
833 | Translate it into a pointer-to-function type. */ | |
834 | { | |
835 | p++; | |
836 | SYMBOL_TYPE (sym) | |
837 | = lookup_pointer_type | |
838 | (lookup_function_type (read_type (&p, objfile))); | |
839 | } | |
840 | else | |
841 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
842 | ||
d07734e3 FF |
843 | /* Normally this is a parameter, a LOC_ARG. On the i960, it |
844 | can also be a LOC_LOCAL_ARG depending on symbol type. */ | |
845 | #ifndef DBX_PARM_SYMBOL_CLASS | |
846 | #define DBX_PARM_SYMBOL_CLASS(type) LOC_ARG | |
847 | #endif | |
59d69506 | 848 | |
d07734e3 FF |
849 | SYMBOL_CLASS (sym) = DBX_PARM_SYMBOL_CLASS (type); |
850 | SYMBOL_VALUE (sym) = valu; | |
851 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
d07734e3 FF |
852 | add_symbol_to_list (sym, &local_symbols); |
853 | ||
b8176214 ILT |
854 | if (TARGET_BYTE_ORDER != BIG_ENDIAN) |
855 | { | |
856 | /* On little-endian machines, this crud is never necessary, | |
857 | and, if the extra bytes contain garbage, is harmful. */ | |
858 | break; | |
859 | } | |
860 | ||
d07734e3 FF |
861 | /* If it's gcc-compiled, if it says `short', believe it. */ |
862 | if (processing_gcc_compilation || BELIEVE_PCC_PROMOTION) | |
863 | break; | |
864 | ||
f52bde21 JK |
865 | #if !BELIEVE_PCC_PROMOTION |
866 | { | |
867 | /* This is the signed type which arguments get promoted to. */ | |
868 | static struct type *pcc_promotion_type; | |
869 | /* This is the unsigned type which arguments get promoted to. */ | |
870 | static struct type *pcc_unsigned_promotion_type; | |
871 | ||
872 | /* Call it "int" because this is mainly C lossage. */ | |
873 | if (pcc_promotion_type == NULL) | |
874 | pcc_promotion_type = | |
875 | init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, | |
876 | 0, "int", NULL); | |
877 | ||
878 | if (pcc_unsigned_promotion_type == NULL) | |
879 | pcc_unsigned_promotion_type = | |
880 | init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, | |
881 | TYPE_FLAG_UNSIGNED, "unsigned int", NULL); | |
d07734e3 | 882 | |
f52bde21 JK |
883 | #if defined(BELIEVE_PCC_PROMOTION_TYPE) |
884 | /* This macro is defined on machines (e.g. sparc) where | |
885 | we should believe the type of a PCC 'short' argument, | |
886 | but shouldn't believe the address (the address is | |
dcb38973 | 887 | the address of the corresponding int). |
f52bde21 JK |
888 | |
889 | My guess is that this correction, as opposed to changing | |
890 | the parameter to an 'int' (as done below, for PCC | |
891 | on most machines), is the right thing to do | |
892 | on all machines, but I don't want to risk breaking | |
893 | something that already works. On most PCC machines, | |
894 | the sparc problem doesn't come up because the calling | |
895 | function has to zero the top bytes (not knowing whether | |
896 | the called function wants an int or a short), so there | |
dcb38973 | 897 | is little practical difference between an int and a short |
f52bde21 JK |
898 | (except perhaps what happens when the GDB user types |
899 | "print short_arg = 0x10000;"). | |
900 | ||
901 | Hacked for SunOS 4.1 by gnu@cygnus.com. In 4.1, the compiler | |
902 | actually produces the correct address (we don't need to fix it | |
903 | up). I made this code adapt so that it will offset the symbol | |
904 | if it was pointing at an int-aligned location and not | |
905 | otherwise. This way you can use the same gdb for 4.0.x and | |
906 | 4.1 systems. | |
907 | ||
908 | If the parameter is shorter than an int, and is integral | |
909 | (e.g. char, short, or unsigned equivalent), and is claimed to | |
910 | be passed on an integer boundary, don't believe it! Offset the | |
911 | parameter's address to the tail-end of that integer. */ | |
912 | ||
913 | if (TYPE_LENGTH (SYMBOL_TYPE (sym)) < TYPE_LENGTH (pcc_promotion_type) | |
914 | && TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_INT | |
915 | && 0 == SYMBOL_VALUE (sym) % TYPE_LENGTH (pcc_promotion_type)) | |
916 | { | |
917 | SYMBOL_VALUE (sym) += TYPE_LENGTH (pcc_promotion_type) | |
918 | - TYPE_LENGTH (SYMBOL_TYPE (sym)); | |
919 | } | |
920 | break; | |
921 | ||
d07734e3 FF |
922 | #else /* no BELIEVE_PCC_PROMOTION_TYPE. */ |
923 | ||
f52bde21 JK |
924 | /* If PCC says a parameter is a short or a char, |
925 | it is really an int. */ | |
926 | if (TYPE_LENGTH (SYMBOL_TYPE (sym)) < TYPE_LENGTH (pcc_promotion_type) | |
927 | && TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_INT) | |
928 | { | |
929 | SYMBOL_TYPE (sym) = | |
930 | TYPE_UNSIGNED (SYMBOL_TYPE (sym)) | |
931 | ? pcc_unsigned_promotion_type | |
932 | : pcc_promotion_type; | |
933 | } | |
934 | break; | |
d07734e3 FF |
935 | |
936 | #endif /* no BELIEVE_PCC_PROMOTION_TYPE. */ | |
f52bde21 JK |
937 | } |
938 | #endif /* !BELIEVE_PCC_PROMOTION. */ | |
d07734e3 FF |
939 | |
940 | case 'P': | |
941 | /* acc seems to use P to delare the prototypes of functions that | |
942 | are referenced by this file. gdb is not prepared to deal | |
943 | with this extra information. FIXME, it ought to. */ | |
944 | if (type == N_FUN) | |
59d69506 JK |
945 | { |
946 | read_type (&p, objfile); | |
947 | goto process_prototype_types; | |
948 | } | |
f52bde21 | 949 | /*FALLTHROUGH*/ |
d07734e3 | 950 | |
f52bde21 | 951 | case 'R': |
d07734e3 | 952 | /* Parameter which is in a register. */ |
59d69506 | 953 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
d07734e3 FF |
954 | SYMBOL_CLASS (sym) = LOC_REGPARM; |
955 | SYMBOL_VALUE (sym) = STAB_REG_TO_REGNUM (valu); | |
956 | if (SYMBOL_VALUE (sym) >= NUM_REGS) | |
957 | { | |
2e4964ad | 958 | complain (®_value_complaint, SYMBOL_SOURCE_NAME (sym)); |
d07734e3 FF |
959 | SYMBOL_VALUE (sym) = SP_REGNUM; /* Known safe, though useless */ |
960 | } | |
961 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
962 | add_symbol_to_list (sym, &local_symbols); | |
963 | break; | |
964 | ||
d07734e3 FF |
965 | case 'r': |
966 | /* Register variable (either global or local). */ | |
59d69506 | 967 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
d07734e3 FF |
968 | SYMBOL_CLASS (sym) = LOC_REGISTER; |
969 | SYMBOL_VALUE (sym) = STAB_REG_TO_REGNUM (valu); | |
970 | if (SYMBOL_VALUE (sym) >= NUM_REGS) | |
971 | { | |
2e4964ad | 972 | complain (®_value_complaint, SYMBOL_SOURCE_NAME (sym)); |
d07734e3 FF |
973 | SYMBOL_VALUE (sym) = SP_REGNUM; /* Known safe, though useless */ |
974 | } | |
975 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
4bfe9e81 | 976 | if (within_function) |
5afa2040 JK |
977 | { |
978 | /* Sun cc uses a pair of symbols, one 'p' and one 'r' with the same | |
979 | name to represent an argument passed in a register. | |
980 | GCC uses 'P' for the same case. So if we find such a symbol pair | |
649694ea JK |
981 | we combine it into one 'P' symbol. For Sun cc we need to do this |
982 | regardless of REG_STRUCT_HAS_ADDR, because the compiler puts out | |
983 | the 'p' symbol even if it never saves the argument onto the stack. | |
28f851f9 | 984 | |
649694ea | 985 | On most machines, we want to preserve both symbols, so that |
28f851f9 | 986 | we can still get information about what is going on with the |
4bfe9e81 JK |
987 | stack (VAX for computing args_printed, using stack slots instead |
988 | of saved registers in backtraces, etc.). | |
989 | ||
5afa2040 | 990 | Note that this code illegally combines |
28f851f9 | 991 | main(argc) struct foo argc; { register struct foo argc; } |
5afa2040 JK |
992 | but this case is considered pathological and causes a warning |
993 | from a decent compiler. */ | |
28f851f9 | 994 | |
5afa2040 | 995 | if (local_symbols |
4bfe9e81 | 996 | && local_symbols->nsyms > 0 |
649694ea | 997 | #ifndef USE_REGISTER_NOT_ARG |
84ad95c1 JL |
998 | && REG_STRUCT_HAS_ADDR (processing_gcc_compilation, |
999 | SYMBOL_TYPE (sym)) | |
4bfe9e81 | 1000 | && (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT |
649694ea JK |
1001 | || TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_UNION) |
1002 | #endif | |
1003 | ) | |
5afa2040 JK |
1004 | { |
1005 | struct symbol *prev_sym; | |
1006 | prev_sym = local_symbols->symbol[local_symbols->nsyms - 1]; | |
649694ea JK |
1007 | if ((SYMBOL_CLASS (prev_sym) == LOC_REF_ARG |
1008 | || SYMBOL_CLASS (prev_sym) == LOC_ARG) | |
5afa2040 JK |
1009 | && STREQ (SYMBOL_NAME (prev_sym), SYMBOL_NAME(sym))) |
1010 | { | |
1011 | SYMBOL_CLASS (prev_sym) = LOC_REGPARM; | |
fc81adb8 JK |
1012 | /* Use the type from the LOC_REGISTER; that is the type |
1013 | that is actually in that register. */ | |
1014 | SYMBOL_TYPE (prev_sym) = SYMBOL_TYPE (sym); | |
5afa2040 JK |
1015 | SYMBOL_VALUE (prev_sym) = SYMBOL_VALUE (sym); |
1016 | sym = prev_sym; | |
1017 | break; | |
1018 | } | |
1019 | } | |
1020 | add_symbol_to_list (sym, &local_symbols); | |
1021 | } | |
d07734e3 FF |
1022 | else |
1023 | add_symbol_to_list (sym, &file_symbols); | |
1024 | break; | |
1025 | ||
1026 | case 'S': | |
1027 | /* Static symbol at top level of file */ | |
59d69506 | 1028 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
d07734e3 FF |
1029 | SYMBOL_CLASS (sym) = LOC_STATIC; |
1030 | SYMBOL_VALUE_ADDRESS (sym) = valu; | |
137a07e6 JK |
1031 | #ifdef STATIC_TRANSFORM_NAME |
1032 | if (SYMBOL_NAME (sym)[0] == '$') | |
1033 | { | |
1034 | struct minimal_symbol *msym; | |
1035 | msym = lookup_minimal_symbol (SYMBOL_NAME (sym), NULL, objfile); | |
1036 | if (msym != NULL) | |
1037 | { | |
1038 | SYMBOL_NAME (sym) = STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym)); | |
1039 | SYMBOL_VALUE_ADDRESS (sym) = SYMBOL_VALUE_ADDRESS (msym); | |
1040 | } | |
1041 | } | |
1042 | #endif | |
d07734e3 FF |
1043 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; |
1044 | add_symbol_to_list (sym, &file_symbols); | |
1045 | break; | |
1046 | ||
1047 | case 't': | |
59d69506 JK |
1048 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
1049 | ||
d07734e3 FF |
1050 | /* For a nameless type, we don't want a create a symbol, thus we |
1051 | did not use `sym'. Return without further processing. */ | |
1052 | if (nameless) return NULL; | |
1053 | ||
1054 | SYMBOL_CLASS (sym) = LOC_TYPEDEF; | |
1055 | SYMBOL_VALUE (sym) = valu; | |
1056 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
1057 | /* C++ vagaries: we may have a type which is derived from | |
59d69506 JK |
1058 | a base type which did not have its name defined when the |
1059 | derived class was output. We fill in the derived class's | |
1060 | base part member's name here in that case. */ | |
d07734e3 | 1061 | if (TYPE_NAME (SYMBOL_TYPE (sym)) != NULL) |
59d69506 JK |
1062 | if ((TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT |
1063 | || TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_UNION) | |
1064 | && TYPE_N_BASECLASSES (SYMBOL_TYPE (sym))) | |
1065 | { | |
1066 | int j; | |
1067 | for (j = TYPE_N_BASECLASSES (SYMBOL_TYPE (sym)) - 1; j >= 0; j--) | |
1068 | if (TYPE_BASECLASS_NAME (SYMBOL_TYPE (sym), j) == 0) | |
1069 | TYPE_BASECLASS_NAME (SYMBOL_TYPE (sym), j) = | |
1070 | type_name_no_tag (TYPE_BASECLASS (SYMBOL_TYPE (sym), j)); | |
1071 | } | |
d07734e3 | 1072 | |
f52bde21 | 1073 | if (TYPE_NAME (SYMBOL_TYPE (sym)) == NULL) |
59d69506 | 1074 | { |
36a2283d PB |
1075 | /* gcc-2.6 or later (when using -fvtable-thunks) |
1076 | emits a unique named type for a vtable entry. | |
1077 | Some gdb code depends on that specific name. */ | |
1078 | extern const char vtbl_ptr_name[]; | |
1079 | ||
1080 | if ((TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_PTR | |
1081 | && strcmp (SYMBOL_NAME (sym), vtbl_ptr_name)) | |
5af4f5f6 | 1082 | || TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FUNC) |
59d69506 | 1083 | { |
5af4f5f6 JK |
1084 | /* If we are giving a name to a type such as "pointer to |
1085 | foo" or "function returning foo", we better not set | |
1086 | the TYPE_NAME. If the program contains "typedef char | |
1087 | *caddr_t;", we don't want all variables of type char | |
1088 | * to print as caddr_t. This is not just a | |
1089 | consequence of GDB's type management; PCC and GCC (at | |
1090 | least through version 2.4) both output variables of | |
1091 | either type char * or caddr_t with the type number | |
1092 | defined in the 't' symbol for caddr_t. If a future | |
1093 | compiler cleans this up it GDB is not ready for it | |
1094 | yet, but if it becomes ready we somehow need to | |
1095 | disable this check (without breaking the PCC/GCC2.4 | |
1096 | case). | |
59d69506 JK |
1097 | |
1098 | Sigh. | |
1099 | ||
1100 | Fortunately, this check seems not to be necessary | |
5af4f5f6 | 1101 | for anything except pointers or functions. */ |
59d69506 JK |
1102 | } |
1103 | else | |
1104 | TYPE_NAME (SYMBOL_TYPE (sym)) = SYMBOL_NAME (sym); | |
1105 | } | |
f52bde21 | 1106 | |
d07734e3 FF |
1107 | add_symbol_to_list (sym, &file_symbols); |
1108 | break; | |
1109 | ||
1110 | case 'T': | |
59d69506 JK |
1111 | /* Struct, union, or enum tag. For GNU C++, this can be be followed |
1112 | by 't' which means we are typedef'ing it as well. */ | |
1113 | synonym = *p == 't'; | |
1114 | ||
1115 | if (synonym) | |
5e548861 | 1116 | p++; |
91f87016 JL |
1117 | /* The semantics of C++ state that "struct foo { ... }" also defines |
1118 | a typedef for "foo". Unfortunately, cfront never makes the typedef | |
1119 | when translating C++ into C. We make the typedef here so that | |
1120 | "ptype foo" works as expected for cfront translated code. */ | |
1121 | else if (current_subfile->language == language_cplus) | |
5e548861 | 1122 | synonym = 1; |
59d69506 JK |
1123 | |
1124 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
1125 | ||
d07734e3 FF |
1126 | /* For a nameless type, we don't want a create a symbol, thus we |
1127 | did not use `sym'. Return without further processing. */ | |
1128 | if (nameless) return NULL; | |
1129 | ||
1130 | SYMBOL_CLASS (sym) = LOC_TYPEDEF; | |
1131 | SYMBOL_VALUE (sym) = valu; | |
1132 | SYMBOL_NAMESPACE (sym) = STRUCT_NAMESPACE; | |
b2bebdb0 JK |
1133 | if (TYPE_TAG_NAME (SYMBOL_TYPE (sym)) == 0) |
1134 | TYPE_TAG_NAME (SYMBOL_TYPE (sym)) | |
1135 | = obconcat (&objfile -> type_obstack, "", "", SYMBOL_NAME (sym)); | |
d07734e3 FF |
1136 | add_symbol_to_list (sym, &file_symbols); |
1137 | ||
1138 | if (synonym) | |
1139 | { | |
2e4964ad | 1140 | /* Clone the sym and then modify it. */ |
d07734e3 | 1141 | register struct symbol *typedef_sym = (struct symbol *) |
dac9734e | 1142 | obstack_alloc (&objfile -> symbol_obstack, sizeof (struct symbol)); |
2e4964ad | 1143 | *typedef_sym = *sym; |
d07734e3 FF |
1144 | SYMBOL_CLASS (typedef_sym) = LOC_TYPEDEF; |
1145 | SYMBOL_VALUE (typedef_sym) = valu; | |
1146 | SYMBOL_NAMESPACE (typedef_sym) = VAR_NAMESPACE; | |
b2bebdb0 JK |
1147 | if (TYPE_NAME (SYMBOL_TYPE (sym)) == 0) |
1148 | TYPE_NAME (SYMBOL_TYPE (sym)) | |
1149 | = obconcat (&objfile -> type_obstack, "", "", SYMBOL_NAME (sym)); | |
d07734e3 FF |
1150 | add_symbol_to_list (typedef_sym, &file_symbols); |
1151 | } | |
1152 | break; | |
1153 | ||
1154 | case 'V': | |
1155 | /* Static symbol of local scope */ | |
59d69506 | 1156 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
d07734e3 FF |
1157 | SYMBOL_CLASS (sym) = LOC_STATIC; |
1158 | SYMBOL_VALUE_ADDRESS (sym) = valu; | |
137a07e6 JK |
1159 | #ifdef STATIC_TRANSFORM_NAME |
1160 | if (SYMBOL_NAME (sym)[0] == '$') | |
1161 | { | |
1162 | struct minimal_symbol *msym; | |
1163 | msym = lookup_minimal_symbol (SYMBOL_NAME (sym), NULL, objfile); | |
1164 | if (msym != NULL) | |
1165 | { | |
1166 | SYMBOL_NAME (sym) = STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym)); | |
1167 | SYMBOL_VALUE_ADDRESS (sym) = SYMBOL_VALUE_ADDRESS (msym); | |
1168 | } | |
1169 | } | |
1170 | #endif | |
d07734e3 | 1171 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; |
25200748 JK |
1172 | if (os9k_stabs) |
1173 | add_symbol_to_list (sym, &global_symbols); | |
1174 | else | |
1175 | add_symbol_to_list (sym, &local_symbols); | |
d07734e3 FF |
1176 | break; |
1177 | ||
1178 | case 'v': | |
1179 | /* Reference parameter */ | |
59d69506 | 1180 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
d07734e3 FF |
1181 | SYMBOL_CLASS (sym) = LOC_REF_ARG; |
1182 | SYMBOL_VALUE (sym) = valu; | |
1183 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
1184 | add_symbol_to_list (sym, &local_symbols); | |
1185 | break; | |
1186 | ||
117a817d JL |
1187 | case 'a': |
1188 | /* Reference parameter which is in a register. */ | |
1189 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
1190 | SYMBOL_CLASS (sym) = LOC_REGPARM_ADDR; | |
1191 | SYMBOL_VALUE (sym) = STAB_REG_TO_REGNUM (valu); | |
1192 | if (SYMBOL_VALUE (sym) >= NUM_REGS) | |
1193 | { | |
1194 | complain (®_value_complaint, SYMBOL_SOURCE_NAME (sym)); | |
1195 | SYMBOL_VALUE (sym) = SP_REGNUM; /* Known safe, though useless */ | |
1196 | } | |
1197 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
1198 | add_symbol_to_list (sym, &local_symbols); | |
1199 | break; | |
1200 | ||
d07734e3 FF |
1201 | case 'X': |
1202 | /* This is used by Sun FORTRAN for "function result value". | |
1203 | Sun claims ("dbx and dbxtool interfaces", 2nd ed) | |
1204 | that Pascal uses it too, but when I tried it Pascal used | |
1205 | "x:3" (local symbol) instead. */ | |
59d69506 | 1206 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
d07734e3 FF |
1207 | SYMBOL_CLASS (sym) = LOC_LOCAL; |
1208 | SYMBOL_VALUE (sym) = valu; | |
1209 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
1210 | add_symbol_to_list (sym, &local_symbols); | |
1211 | break; | |
1212 | ||
1213 | default: | |
2dd30c72 | 1214 | SYMBOL_TYPE (sym) = error_type (&p, objfile); |
ea753d03 JK |
1215 | SYMBOL_CLASS (sym) = LOC_CONST; |
1216 | SYMBOL_VALUE (sym) = 0; | |
ea753d03 JK |
1217 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; |
1218 | add_symbol_to_list (sym, &file_symbols); | |
1219 | break; | |
d07734e3 | 1220 | } |
5afa2040 JK |
1221 | |
1222 | /* When passing structures to a function, some systems sometimes pass | |
1223 | the address in a register, not the structure itself. | |
1224 | ||
1225 | If REG_STRUCT_HAS_ADDR yields non-zero we have to convert LOC_REGPARM | |
1226 | to LOC_REGPARM_ADDR for structures and unions. */ | |
1227 | ||
5afa2040 | 1228 | if (SYMBOL_CLASS (sym) == LOC_REGPARM |
84ad95c1 JL |
1229 | && REG_STRUCT_HAS_ADDR (processing_gcc_compilation, |
1230 | SYMBOL_TYPE (sym)) | |
28f851f9 | 1231 | && ((TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT) |
5afa2040 JK |
1232 | || (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_UNION))) |
1233 | SYMBOL_CLASS (sym) = LOC_REGPARM_ADDR; | |
1234 | ||
f2613710 JK |
1235 | /* Likewise for converting LOC_ARG to LOC_REF_ARG (for the 7th and |
1236 | subsequent arguments on the sparc, for example). */ | |
1237 | if (SYMBOL_CLASS (sym) == LOC_ARG | |
84ad95c1 JL |
1238 | && REG_STRUCT_HAS_ADDR (processing_gcc_compilation, |
1239 | SYMBOL_TYPE (sym)) | |
f2613710 JK |
1240 | && ((TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT) |
1241 | || (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_UNION))) | |
1242 | SYMBOL_CLASS (sym) = LOC_REF_ARG; | |
1243 | ||
d07734e3 FF |
1244 | return sym; |
1245 | } | |
1246 | ||
1247 | \f | |
1248 | /* Skip rest of this symbol and return an error type. | |
1249 | ||
1250 | General notes on error recovery: error_type always skips to the | |
1251 | end of the symbol (modulo cretinous dbx symbol name continuation). | |
1252 | Thus code like this: | |
1253 | ||
1254 | if (*(*pp)++ != ';') | |
2dd30c72 | 1255 | return error_type (pp, objfile); |
d07734e3 FF |
1256 | |
1257 | is wrong because if *pp starts out pointing at '\0' (typically as the | |
1258 | result of an earlier error), it will be incremented to point to the | |
1259 | start of the next symbol, which might produce strange results, at least | |
1260 | if you run off the end of the string table. Instead use | |
1261 | ||
1262 | if (**pp != ';') | |
2dd30c72 | 1263 | return error_type (pp, objfile); |
d07734e3 FF |
1264 | ++*pp; |
1265 | ||
1266 | or | |
1267 | ||
1268 | if (**pp != ';') | |
2dd30c72 | 1269 | foo = error_type (pp, objfile); |
d07734e3 FF |
1270 | else |
1271 | ++*pp; | |
1272 | ||
1273 | And in case it isn't obvious, the point of all this hair is so the compiler | |
1274 | can define new types and new syntaxes, and old versions of the | |
1275 | debugger will be able to read the new symbol tables. */ | |
1276 | ||
ea753d03 | 1277 | static struct type * |
2dd30c72 | 1278 | error_type (pp, objfile) |
d07734e3 | 1279 | char **pp; |
2dd30c72 | 1280 | struct objfile *objfile; |
d07734e3 | 1281 | { |
51b80b00 | 1282 | complain (&error_type_complaint); |
d07734e3 FF |
1283 | while (1) |
1284 | { | |
1285 | /* Skip to end of symbol. */ | |
1286 | while (**pp != '\0') | |
e7177cc2 FF |
1287 | { |
1288 | (*pp)++; | |
1289 | } | |
d07734e3 FF |
1290 | |
1291 | /* Check for and handle cretinous dbx symbol name continuation! */ | |
91a0575c | 1292 | if ((*pp)[-1] == '\\' || (*pp)[-1] == '?') |
e7177cc2 | 1293 | { |
2dd30c72 | 1294 | *pp = next_symbol_text (objfile); |
e7177cc2 | 1295 | } |
d07734e3 | 1296 | else |
e7177cc2 FF |
1297 | { |
1298 | break; | |
1299 | } | |
d07734e3 | 1300 | } |
e7177cc2 | 1301 | return (builtin_type_error); |
d07734e3 FF |
1302 | } |
1303 | ||
1304 | \f | |
59d69506 JK |
1305 | /* Read type information or a type definition; return the type. Even |
1306 | though this routine accepts either type information or a type | |
1307 | definition, the distinction is relevant--some parts of stabsread.c | |
1308 | assume that type information starts with a digit, '-', or '(' in | |
1309 | deciding whether to call read_type. */ | |
d07734e3 FF |
1310 | |
1311 | struct type * | |
1312 | read_type (pp, objfile) | |
1313 | register char **pp; | |
1314 | struct objfile *objfile; | |
1315 | { | |
1316 | register struct type *type = 0; | |
1317 | struct type *type1; | |
1318 | int typenums[2]; | |
1319 | int xtypenums[2]; | |
e7177cc2 | 1320 | char type_descriptor; |
d07734e3 | 1321 | |
5ed0ccaf JK |
1322 | /* Size in bits of type if specified by a type attribute, or -1 if |
1323 | there is no size attribute. */ | |
1324 | int type_size = -1; | |
1325 | ||
cba00921 PB |
1326 | /* Used to distinguish string and bitstring from char-array and set. */ |
1327 | int is_string = 0; | |
1328 | ||
d07734e3 FF |
1329 | /* Read type number if present. The type number may be omitted. |
1330 | for instance in a two-dimensional array declared with type | |
1331 | "ar1;1;10;ar1;1;10;4". */ | |
1332 | if ((**pp >= '0' && **pp <= '9') | |
4fc9d7c7 JK |
1333 | || **pp == '(' |
1334 | || **pp == '-') | |
d07734e3 | 1335 | { |
ea753d03 | 1336 | if (read_type_number (pp, typenums) != 0) |
2dd30c72 | 1337 | return error_type (pp, objfile); |
d07734e3 FF |
1338 | |
1339 | /* Type is not being defined here. Either it already exists, | |
1340 | or this is a forward reference to it. dbx_alloc_type handles | |
1341 | both cases. */ | |
1342 | if (**pp != '=') | |
1343 | return dbx_alloc_type (typenums, objfile); | |
1344 | ||
1345 | /* Type is being defined here. */ | |
36bcda79 JK |
1346 | /* Skip the '='. */ |
1347 | ++(*pp); | |
d07734e3 | 1348 | |
36bcda79 JK |
1349 | while (**pp == '@') |
1350 | { | |
1351 | char *p = *pp + 1; | |
1352 | /* It might be a type attribute or a member type. */ | |
1353 | if (isdigit (*p) || *p == '(' || *p == '-') | |
1354 | /* Member type. */ | |
1355 | break; | |
1356 | else | |
1357 | { | |
5ed0ccaf JK |
1358 | /* Type attributes. */ |
1359 | char *attr = p; | |
1360 | ||
1361 | /* Skip to the semicolon. */ | |
36bcda79 JK |
1362 | while (*p != ';' && *p != '\0') |
1363 | ++p; | |
1364 | *pp = p; | |
1365 | if (*p == '\0') | |
2dd30c72 | 1366 | return error_type (pp, objfile); |
36bcda79 JK |
1367 | else |
1368 | /* Skip the semicolon. */ | |
1369 | ++*pp; | |
5ed0ccaf JK |
1370 | |
1371 | switch (*attr) | |
1372 | { | |
1373 | case 's': | |
1374 | type_size = atoi (attr + 1); | |
1375 | if (type_size <= 0) | |
1376 | type_size = -1; | |
1377 | break; | |
7677d4fd | 1378 | |
cba00921 PB |
1379 | case 'S': |
1380 | is_string = 1; | |
7677d4fd JK |
1381 | break; |
1382 | ||
5ed0ccaf JK |
1383 | default: |
1384 | /* Ignore unrecognized type attributes, so future compilers | |
1385 | can invent new ones. */ | |
1386 | break; | |
1387 | } | |
36bcda79 JK |
1388 | } |
1389 | } | |
1390 | /* Skip the type descriptor, we get it below with (*pp)[-1]. */ | |
1391 | ++(*pp); | |
d07734e3 FF |
1392 | } |
1393 | else | |
1394 | { | |
1395 | /* 'typenums=' not present, type is anonymous. Read and return | |
1396 | the definition, but don't put it in the type vector. */ | |
1397 | typenums[0] = typenums[1] = -1; | |
e7177cc2 | 1398 | (*pp)++; |
d07734e3 FF |
1399 | } |
1400 | ||
e7177cc2 FF |
1401 | type_descriptor = (*pp)[-1]; |
1402 | switch (type_descriptor) | |
d07734e3 FF |
1403 | { |
1404 | case 'x': | |
1405 | { | |
1406 | enum type_code code; | |
1407 | ||
1408 | /* Used to index through file_symbols. */ | |
1409 | struct pending *ppt; | |
1410 | int i; | |
1411 | ||
1412 | /* Name including "struct", etc. */ | |
1413 | char *type_name; | |
1414 | ||
d07734e3 | 1415 | { |
279a3cfd | 1416 | char *from, *to, *p, *q1, *q2; |
d07734e3 FF |
1417 | |
1418 | /* Set the type code according to the following letter. */ | |
1419 | switch ((*pp)[0]) | |
1420 | { | |
1421 | case 's': | |
1422 | code = TYPE_CODE_STRUCT; | |
d07734e3 FF |
1423 | break; |
1424 | case 'u': | |
1425 | code = TYPE_CODE_UNION; | |
d07734e3 FF |
1426 | break; |
1427 | case 'e': | |
1428 | code = TYPE_CODE_ENUM; | |
d07734e3 FF |
1429 | break; |
1430 | default: | |
79cf7e1f JK |
1431 | { |
1432 | /* Complain and keep going, so compilers can invent new | |
1433 | cross-reference types. */ | |
1434 | static struct complaint msg = | |
1435 | {"Unrecognized cross-reference type `%c'", 0, 0}; | |
1436 | complain (&msg, (*pp)[0]); | |
1437 | code = TYPE_CODE_STRUCT; | |
1438 | break; | |
1439 | } | |
d07734e3 | 1440 | } |
2fb58b98 | 1441 | |
279a3cfd | 1442 | q1 = strchr(*pp, '<'); |
2fb58b98 | 1443 | p = strchr(*pp, ':'); |
79cf7e1f | 1444 | if (p == NULL) |
2dd30c72 | 1445 | return error_type (pp, objfile); |
279a3cfd | 1446 | while (q1 && p > q1 && p[1] == ':') |
2fb58b98 | 1447 | { |
279a3cfd KH |
1448 | q2 = strchr(q1, '>'); |
1449 | if (!q2 || q2 < p) | |
1450 | break; | |
2fb58b98 KH |
1451 | p += 2; |
1452 | p = strchr(p, ':'); | |
79cf7e1f | 1453 | if (p == NULL) |
2dd30c72 | 1454 | return error_type (pp, objfile); |
2fb58b98 KH |
1455 | } |
1456 | to = type_name = | |
1457 | (char *)obstack_alloc (&objfile->type_obstack, p - *pp + 1); | |
d07734e3 | 1458 | |
d07734e3 FF |
1459 | /* Copy the name. */ |
1460 | from = *pp + 1; | |
2fb58b98 KH |
1461 | while (from < p) |
1462 | *to++ = *from++; | |
1463 | *to = '\0'; | |
d07734e3 | 1464 | |
79cf7e1f JK |
1465 | /* Set the pointer ahead of the name which we just read, and |
1466 | the colon. */ | |
1467 | *pp = from + 1; | |
d07734e3 FF |
1468 | } |
1469 | ||
dda398c3 JK |
1470 | /* Now check to see whether the type has already been |
1471 | declared. This was written for arrays of cross-referenced | |
1472 | types before we had TYPE_CODE_TARGET_STUBBED, so I'm pretty | |
1473 | sure it is not necessary anymore. But it might be a good | |
1474 | idea, to save a little memory. */ | |
1475 | ||
d07734e3 FF |
1476 | for (ppt = file_symbols; ppt; ppt = ppt->next) |
1477 | for (i = 0; i < ppt->nsyms; i++) | |
1478 | { | |
1479 | struct symbol *sym = ppt->symbol[i]; | |
1480 | ||
1481 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF | |
1482 | && SYMBOL_NAMESPACE (sym) == STRUCT_NAMESPACE | |
1483 | && (TYPE_CODE (SYMBOL_TYPE (sym)) == code) | |
b2bebdb0 | 1484 | && STREQ (SYMBOL_NAME (sym), type_name)) |
d07734e3 FF |
1485 | { |
1486 | obstack_free (&objfile -> type_obstack, type_name); | |
1487 | type = SYMBOL_TYPE (sym); | |
1488 | return type; | |
1489 | } | |
1490 | } | |
dda398c3 | 1491 | |
d07734e3 FF |
1492 | /* Didn't find the type to which this refers, so we must |
1493 | be dealing with a forward reference. Allocate a type | |
1494 | structure for it, and keep track of it so we can | |
1495 | fill in the rest of the fields when we get the full | |
1496 | type. */ | |
1497 | type = dbx_alloc_type (typenums, objfile); | |
1498 | TYPE_CODE (type) = code; | |
b2bebdb0 | 1499 | TYPE_TAG_NAME (type) = type_name; |
d07734e3 FF |
1500 | INIT_CPLUS_SPECIFIC(type); |
1501 | TYPE_FLAGS (type) |= TYPE_FLAG_STUB; | |
1502 | ||
1503 | add_undefined_type (type); | |
1504 | return type; | |
1505 | } | |
1506 | ||
1507 | case '-': /* RS/6000 built-in type */ | |
d07734e3 FF |
1508 | case '0': |
1509 | case '1': | |
1510 | case '2': | |
1511 | case '3': | |
1512 | case '4': | |
1513 | case '5': | |
1514 | case '6': | |
1515 | case '7': | |
1516 | case '8': | |
1517 | case '9': | |
1518 | case '(': | |
f52bde21 | 1519 | |
4b404661 JK |
1520 | { |
1521 | char *pp_saved; | |
5ed0ccaf | 1522 | |
4b404661 JK |
1523 | (*pp)--; |
1524 | pp_saved = *pp; | |
5ed0ccaf | 1525 | |
4b404661 JK |
1526 | /* Peek ahead at the number to detect void. */ |
1527 | if (read_type_number (pp, xtypenums) != 0) | |
2dd30c72 | 1528 | return error_type (pp, objfile); |
5ed0ccaf | 1529 | |
4b404661 JK |
1530 | if (typenums[0] == xtypenums[0] && typenums[1] == xtypenums[1]) |
1531 | /* It's being defined as itself. That means it is "void". */ | |
2f3b7d8e | 1532 | type = init_type (TYPE_CODE_VOID, 1, 0, NULL, objfile); |
4b404661 JK |
1533 | else |
1534 | { | |
1535 | struct type *xtype; | |
1536 | ||
1537 | /* Go back to the number and have read_type get it. This means | |
1538 | that we can deal with something like t(1,2)=(3,4)=... which | |
1539 | the Lucid compiler uses. */ | |
1540 | *pp = pp_saved; | |
1541 | xtype = read_type (pp, objfile); | |
1542 | ||
1543 | /* The type is being defined to another type. So we copy the type. | |
1544 | This loses if we copy a C++ class and so we lose track of how | |
1545 | the names are mangled (but g++ doesn't output stabs like this | |
1546 | now anyway). */ | |
1547 | ||
1548 | type = alloc_type (objfile); | |
5e548861 PB |
1549 | if (SYMBOL_LINE (current_symbol) == 0) |
1550 | { | |
1551 | *type = *xtype; | |
1552 | /* The idea behind clearing the names is that the only purpose | |
1553 | for defining a type to another type is so that the name of | |
1554 | one can be different. So we probably don't need to worry | |
1555 | much about the case where the compiler doesn't give a name | |
1556 | to the new type. */ | |
1557 | TYPE_NAME (type) = NULL; | |
1558 | TYPE_TAG_NAME (type) = NULL; | |
1559 | } | |
1560 | else | |
1561 | { | |
1562 | TYPE_CODE (type) = TYPE_CODE_TYPEDEF; | |
1563 | TYPE_FLAGS (type) |= TYPE_FLAG_TARGET_STUB; | |
1564 | TYPE_TARGET_TYPE (type) = xtype; | |
1565 | } | |
4b404661 JK |
1566 | } |
1567 | if (typenums[0] != -1) | |
1568 | *dbx_lookup_type (typenums) = type; | |
1569 | break; | |
1570 | } | |
d07734e3 FF |
1571 | |
1572 | /* In the following types, we must be sure to overwrite any existing | |
1573 | type that the typenums refer to, rather than allocating a new one | |
1574 | and making the typenums point to the new one. This is because there | |
1575 | may already be pointers to the existing type (if it had been | |
1576 | forward-referenced), and we must change it to a pointer, function, | |
1577 | reference, or whatever, *in-place*. */ | |
1578 | ||
1579 | case '*': | |
1580 | type1 = read_type (pp, objfile); | |
1581 | type = make_pointer_type (type1, dbx_lookup_type (typenums)); | |
1582 | break; | |
1583 | ||
1584 | case '&': /* Reference to another type */ | |
1585 | type1 = read_type (pp, objfile); | |
1586 | type = make_reference_type (type1, dbx_lookup_type (typenums)); | |
1587 | break; | |
1588 | ||
1589 | case 'f': /* Function returning another type */ | |
25200748 JK |
1590 | if (os9k_stabs && **pp == '(') |
1591 | { | |
d5336fc5 | 1592 | /* Function prototype; parse it. |
25200748 JK |
1593 | We must conditionalize this on os9k_stabs because otherwise |
1594 | it could be confused with a Sun-style (1,3) typenumber | |
1595 | (I think). */ | |
d5336fc5 | 1596 | struct type *t; |
25200748 | 1597 | ++*pp; |
d5336fc5 KH |
1598 | while (**pp != ')') |
1599 | { | |
0a2e98a9 | 1600 | t = read_type(pp, objfile); |
d5336fc5 KH |
1601 | if (**pp == ',') ++*pp; |
1602 | } | |
25200748 | 1603 | } |
d07734e3 FF |
1604 | type1 = read_type (pp, objfile); |
1605 | type = make_function_type (type1, dbx_lookup_type (typenums)); | |
1606 | break; | |
1607 | ||
25200748 JK |
1608 | case 'k': /* Const qualifier on some type (Sun) */ |
1609 | case 'c': /* Const qualifier on some type (OS9000) */ | |
1610 | /* Because 'c' means other things to AIX and 'k' is perfectly good, | |
1611 | only accept 'c' in the os9k_stabs case. */ | |
1612 | if (type_descriptor == 'c' && !os9k_stabs) | |
2dd30c72 | 1613 | return error_type (pp, objfile); |
d07734e3 FF |
1614 | type = read_type (pp, objfile); |
1615 | /* FIXME! For now, we ignore const and volatile qualifiers. */ | |
1616 | break; | |
1617 | ||
25200748 JK |
1618 | case 'B': /* Volatile qual on some type (Sun) */ |
1619 | case 'i': /* Volatile qual on some type (OS9000) */ | |
1620 | /* Because 'i' means other things to AIX and 'B' is perfectly good, | |
1621 | only accept 'i' in the os9k_stabs case. */ | |
1622 | if (type_descriptor == 'i' && !os9k_stabs) | |
2dd30c72 | 1623 | return error_type (pp, objfile); |
d07734e3 FF |
1624 | type = read_type (pp, objfile); |
1625 | /* FIXME! For now, we ignore const and volatile qualifiers. */ | |
1626 | break; | |
1627 | ||
1628 | /* FIXME -- we should be doing smash_to_XXX types here. */ | |
1629 | case '@': /* Member (class & variable) type */ | |
1630 | { | |
1631 | struct type *domain = read_type (pp, objfile); | |
1632 | struct type *memtype; | |
1633 | ||
1634 | if (**pp != ',') | |
1635 | /* Invalid member type data format. */ | |
2dd30c72 | 1636 | return error_type (pp, objfile); |
d07734e3 FF |
1637 | ++*pp; |
1638 | ||
1639 | memtype = read_type (pp, objfile); | |
1640 | type = dbx_alloc_type (typenums, objfile); | |
1641 | smash_to_member_type (type, domain, memtype); | |
1642 | } | |
1643 | break; | |
1644 | ||
1645 | case '#': /* Method (class & fn) type */ | |
1646 | if ((*pp)[0] == '#') | |
1647 | { | |
2640f7e1 | 1648 | /* We'll get the parameter types from the name. */ |
d07734e3 FF |
1649 | struct type *return_type; |
1650 | ||
e7177cc2 | 1651 | (*pp)++; |
d07734e3 FF |
1652 | return_type = read_type (pp, objfile); |
1653 | if (*(*pp)++ != ';') | |
51b80b00 | 1654 | complain (&invalid_member_complaint, symnum); |
d07734e3 FF |
1655 | type = allocate_stub_method (return_type); |
1656 | if (typenums[0] != -1) | |
1657 | *dbx_lookup_type (typenums) = type; | |
1658 | } | |
1659 | else | |
1660 | { | |
1661 | struct type *domain = read_type (pp, objfile); | |
1662 | struct type *return_type; | |
1663 | struct type **args; | |
1664 | ||
ea753d03 JK |
1665 | if (**pp != ',') |
1666 | /* Invalid member type data format. */ | |
2dd30c72 | 1667 | return error_type (pp, objfile); |
ea753d03 JK |
1668 | else |
1669 | ++(*pp); | |
d07734e3 FF |
1670 | |
1671 | return_type = read_type (pp, objfile); | |
1672 | args = read_args (pp, ';', objfile); | |
1673 | type = dbx_alloc_type (typenums, objfile); | |
1674 | smash_to_method_type (type, domain, return_type, args); | |
1675 | } | |
1676 | break; | |
1677 | ||
1678 | case 'r': /* Range type */ | |
1679 | type = read_range_type (pp, typenums, objfile); | |
1680 | if (typenums[0] != -1) | |
1681 | *dbx_lookup_type (typenums) = type; | |
1682 | break; | |
1683 | ||
25200748 JK |
1684 | case 'b': |
1685 | if (os9k_stabs) | |
1686 | /* Const and volatile qualified type. */ | |
1687 | type = read_type (pp, objfile); | |
1688 | else | |
1689 | { | |
1690 | /* Sun ACC builtin int type */ | |
1691 | type = read_sun_builtin_type (pp, typenums, objfile); | |
1692 | if (typenums[0] != -1) | |
1693 | *dbx_lookup_type (typenums) = type; | |
1694 | } | |
d07734e3 FF |
1695 | break; |
1696 | ||
1697 | case 'R': /* Sun ACC builtin float type */ | |
1698 | type = read_sun_floating_type (pp, typenums, objfile); | |
1699 | if (typenums[0] != -1) | |
1700 | *dbx_lookup_type (typenums) = type; | |
1701 | break; | |
1702 | ||
1703 | case 'e': /* Enumeration type */ | |
1704 | type = dbx_alloc_type (typenums, objfile); | |
1705 | type = read_enum_type (pp, type, objfile); | |
ea753d03 JK |
1706 | if (typenums[0] != -1) |
1707 | *dbx_lookup_type (typenums) = type; | |
d07734e3 FF |
1708 | break; |
1709 | ||
1710 | case 's': /* Struct type */ | |
d07734e3 FF |
1711 | case 'u': /* Union type */ |
1712 | type = dbx_alloc_type (typenums, objfile); | |
e7177cc2 FF |
1713 | switch (type_descriptor) |
1714 | { | |
1715 | case 's': | |
1716 | TYPE_CODE (type) = TYPE_CODE_STRUCT; | |
1717 | break; | |
1718 | case 'u': | |
1719 | TYPE_CODE (type) = TYPE_CODE_UNION; | |
1720 | break; | |
1721 | } | |
d07734e3 | 1722 | type = read_struct_type (pp, type, objfile); |
d07734e3 FF |
1723 | break; |
1724 | ||
1725 | case 'a': /* Array type */ | |
1726 | if (**pp != 'r') | |
2dd30c72 | 1727 | return error_type (pp, objfile); |
d07734e3 FF |
1728 | ++*pp; |
1729 | ||
1730 | type = dbx_alloc_type (typenums, objfile); | |
1731 | type = read_array_type (pp, type, objfile); | |
cba00921 PB |
1732 | if (is_string) |
1733 | TYPE_CODE (type) = TYPE_CODE_STRING; | |
d07734e3 FF |
1734 | break; |
1735 | ||
e909f287 PB |
1736 | case 'S': |
1737 | type1 = read_type (pp, objfile); | |
1738 | type = create_set_type ((struct type*) NULL, type1); | |
cba00921 PB |
1739 | if (is_string) |
1740 | TYPE_CODE (type) = TYPE_CODE_BITSTRING; | |
e909f287 PB |
1741 | if (typenums[0] != -1) |
1742 | *dbx_lookup_type (typenums) = type; | |
1743 | break; | |
1744 | ||
d07734e3 FF |
1745 | default: |
1746 | --*pp; /* Go back to the symbol in error */ | |
1747 | /* Particularly important if it was \0! */ | |
2dd30c72 | 1748 | return error_type (pp, objfile); |
d07734e3 FF |
1749 | } |
1750 | ||
1751 | if (type == 0) | |
ea753d03 JK |
1752 | { |
1753 | warning ("GDB internal error, type is NULL in stabsread.c\n"); | |
2dd30c72 | 1754 | return error_type (pp, objfile); |
ea753d03 | 1755 | } |
d07734e3 | 1756 | |
5ed0ccaf JK |
1757 | /* Size specified in a type attribute overrides any other size. */ |
1758 | if (type_size != -1) | |
5a04f7d1 | 1759 | TYPE_LENGTH (type) = (type_size + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; |
5ed0ccaf | 1760 | |
d07734e3 FF |
1761 | return type; |
1762 | } | |
1763 | \f | |
dd469789 JG |
1764 | /* RS/6000 xlc/dbx combination uses a set of builtin types, starting from -1. |
1765 | Return the proper type node for a given builtin type number. */ | |
1766 | ||
1767 | static struct type * | |
a387370d | 1768 | rs6000_builtin_type (typenum) |
f52bde21 | 1769 | int typenum; |
dd469789 | 1770 | { |
f52bde21 | 1771 | /* We recognize types numbered from -NUMBER_RECOGNIZED to -1. */ |
8367c66b | 1772 | #define NUMBER_RECOGNIZED 34 |
f52bde21 JK |
1773 | /* This includes an empty slot for type number -0. */ |
1774 | static struct type *negative_types[NUMBER_RECOGNIZED + 1]; | |
46c28185 | 1775 | struct type *rettype = NULL; |
f52bde21 JK |
1776 | |
1777 | if (typenum >= 0 || typenum < -NUMBER_RECOGNIZED) | |
1778 | { | |
1779 | complain (&rs6000_builtin_complaint, typenum); | |
1780 | return builtin_type_error; | |
1781 | } | |
1782 | if (negative_types[-typenum] != NULL) | |
1783 | return negative_types[-typenum]; | |
1784 | ||
1785 | #if TARGET_CHAR_BIT != 8 | |
1786 | #error This code wrong for TARGET_CHAR_BIT not 8 | |
1787 | /* These definitions all assume that TARGET_CHAR_BIT is 8. I think | |
1788 | that if that ever becomes not true, the correct fix will be to | |
1789 | make the size in the struct type to be in bits, not in units of | |
1790 | TARGET_CHAR_BIT. */ | |
1791 | #endif | |
1792 | ||
1793 | switch (-typenum) | |
1794 | { | |
1795 | case 1: | |
1796 | /* The size of this and all the other types are fixed, defined | |
1797 | by the debugging format. If there is a type called "int" which | |
1798 | is other than 32 bits, then it should use a new negative type | |
1799 | number (or avoid negative type numbers for that case). | |
1800 | See stabs.texinfo. */ | |
1801 | rettype = init_type (TYPE_CODE_INT, 4, 0, "int", NULL); | |
1802 | break; | |
1803 | case 2: | |
1804 | rettype = init_type (TYPE_CODE_INT, 1, 0, "char", NULL); | |
1805 | break; | |
1806 | case 3: | |
1807 | rettype = init_type (TYPE_CODE_INT, 2, 0, "short", NULL); | |
1808 | break; | |
1809 | case 4: | |
1810 | rettype = init_type (TYPE_CODE_INT, 4, 0, "long", NULL); | |
1811 | break; | |
1812 | case 5: | |
1813 | rettype = init_type (TYPE_CODE_INT, 1, TYPE_FLAG_UNSIGNED, | |
1814 | "unsigned char", NULL); | |
1815 | break; | |
1816 | case 6: | |
1817 | rettype = init_type (TYPE_CODE_INT, 1, 0, "signed char", NULL); | |
1818 | break; | |
1819 | case 7: | |
1820 | rettype = init_type (TYPE_CODE_INT, 2, TYPE_FLAG_UNSIGNED, | |
1821 | "unsigned short", NULL); | |
1822 | break; | |
1823 | case 8: | |
1824 | rettype = init_type (TYPE_CODE_INT, 4, TYPE_FLAG_UNSIGNED, | |
1825 | "unsigned int", NULL); | |
1826 | break; | |
1827 | case 9: | |
1828 | rettype = init_type (TYPE_CODE_INT, 4, TYPE_FLAG_UNSIGNED, | |
1829 | "unsigned", NULL); | |
1830 | case 10: | |
1831 | rettype = init_type (TYPE_CODE_INT, 4, TYPE_FLAG_UNSIGNED, | |
1832 | "unsigned long", NULL); | |
1833 | break; | |
1834 | case 11: | |
2f3b7d8e | 1835 | rettype = init_type (TYPE_CODE_VOID, 1, 0, "void", NULL); |
f52bde21 JK |
1836 | break; |
1837 | case 12: | |
1838 | /* IEEE single precision (32 bit). */ | |
1839 | rettype = init_type (TYPE_CODE_FLT, 4, 0, "float", NULL); | |
1840 | break; | |
1841 | case 13: | |
1842 | /* IEEE double precision (64 bit). */ | |
1843 | rettype = init_type (TYPE_CODE_FLT, 8, 0, "double", NULL); | |
1844 | break; | |
1845 | case 14: | |
1846 | /* This is an IEEE double on the RS/6000, and different machines with | |
1847 | different sizes for "long double" should use different negative | |
1848 | type numbers. See stabs.texinfo. */ | |
1849 | rettype = init_type (TYPE_CODE_FLT, 8, 0, "long double", NULL); | |
1850 | break; | |
1851 | case 15: | |
1852 | rettype = init_type (TYPE_CODE_INT, 4, 0, "integer", NULL); | |
1853 | break; | |
1854 | case 16: | |
7e71985c | 1855 | rettype = init_type (TYPE_CODE_BOOL, 4, 0, "boolean", NULL); |
f52bde21 JK |
1856 | break; |
1857 | case 17: | |
1858 | rettype = init_type (TYPE_CODE_FLT, 4, 0, "short real", NULL); | |
1859 | break; | |
1860 | case 18: | |
1861 | rettype = init_type (TYPE_CODE_FLT, 8, 0, "real", NULL); | |
1862 | break; | |
1863 | case 19: | |
1864 | rettype = init_type (TYPE_CODE_ERROR, 0, 0, "stringptr", NULL); | |
1865 | break; | |
1866 | case 20: | |
1867 | rettype = init_type (TYPE_CODE_CHAR, 1, TYPE_FLAG_UNSIGNED, | |
1868 | "character", NULL); | |
1869 | break; | |
1870 | case 21: | |
230a3ab0 | 1871 | rettype = init_type (TYPE_CODE_BOOL, 1, TYPE_FLAG_UNSIGNED, |
f52bde21 JK |
1872 | "logical*1", NULL); |
1873 | break; | |
1874 | case 22: | |
230a3ab0 | 1875 | rettype = init_type (TYPE_CODE_BOOL, 2, TYPE_FLAG_UNSIGNED, |
f52bde21 JK |
1876 | "logical*2", NULL); |
1877 | break; | |
1878 | case 23: | |
230a3ab0 | 1879 | rettype = init_type (TYPE_CODE_BOOL, 4, TYPE_FLAG_UNSIGNED, |
f52bde21 JK |
1880 | "logical*4", NULL); |
1881 | break; | |
1882 | case 24: | |
91ab5674 | 1883 | rettype = init_type (TYPE_CODE_BOOL, 4, TYPE_FLAG_UNSIGNED, |
f52bde21 JK |
1884 | "logical", NULL); |
1885 | break; | |
1886 | case 25: | |
1887 | /* Complex type consisting of two IEEE single precision values. */ | |
1888 | rettype = init_type (TYPE_CODE_ERROR, 8, 0, "complex", NULL); | |
1889 | break; | |
1890 | case 26: | |
1891 | /* Complex type consisting of two IEEE double precision values. */ | |
1892 | rettype = init_type (TYPE_CODE_ERROR, 16, 0, "double complex", NULL); | |
1893 | break; | |
1894 | case 27: | |
1895 | rettype = init_type (TYPE_CODE_INT, 1, 0, "integer*1", NULL); | |
1896 | break; | |
1897 | case 28: | |
1898 | rettype = init_type (TYPE_CODE_INT, 2, 0, "integer*2", NULL); | |
1899 | break; | |
1900 | case 29: | |
1901 | rettype = init_type (TYPE_CODE_INT, 4, 0, "integer*4", NULL); | |
1902 | break; | |
1903 | case 30: | |
1904 | rettype = init_type (TYPE_CODE_CHAR, 2, 0, "wchar", NULL); | |
1905 | break; | |
8367c66b JK |
1906 | case 31: |
1907 | rettype = init_type (TYPE_CODE_INT, 8, 0, "long long", NULL); | |
1908 | break; | |
1909 | case 32: | |
1910 | rettype = init_type (TYPE_CODE_INT, 8, TYPE_FLAG_UNSIGNED, | |
1911 | "unsigned long long", NULL); | |
1912 | break; | |
1913 | case 33: | |
1914 | rettype = init_type (TYPE_CODE_INT, 8, TYPE_FLAG_UNSIGNED, | |
1915 | "logical*8", NULL); | |
1916 | break; | |
1917 | case 34: | |
1918 | rettype = init_type (TYPE_CODE_INT, 8, 0, "integer*8", NULL); | |
1919 | break; | |
f52bde21 JK |
1920 | } |
1921 | negative_types[-typenum] = rettype; | |
1922 | return rettype; | |
dd469789 JG |
1923 | } |
1924 | \f | |
d07734e3 FF |
1925 | /* This page contains subroutines of read_type. */ |
1926 | ||
e7177cc2 FF |
1927 | #define VISIBILITY_PRIVATE '0' /* Stabs character for private field */ |
1928 | #define VISIBILITY_PROTECTED '1' /* Stabs character for protected fld */ | |
1929 | #define VISIBILITY_PUBLIC '2' /* Stabs character for public field */ | |
1dfaef62 | 1930 | #define VISIBILITY_IGNORE '9' /* Optimized out or zero length */ |
d07734e3 | 1931 | |
e7177cc2 FF |
1932 | /* Read member function stabs info for C++ classes. The form of each member |
1933 | function data is: | |
1934 | ||
1935 | NAME :: TYPENUM[=type definition] ARGS : PHYSNAME ; | |
1936 | ||
1937 | An example with two member functions is: | |
1938 | ||
1939 | afunc1::20=##15;:i;2A.;afunc2::20:i;2A.; | |
1940 | ||
1941 | For the case of overloaded operators, the format is op$::*.funcs, where | |
1942 | $ is the CPLUS_MARKER (usually '$'), `*' holds the place for an operator | |
ea753d03 JK |
1943 | name (such as `+=') and `.' marks the end of the operator name. |
1944 | ||
1945 | Returns 1 for success, 0 for failure. */ | |
e7177cc2 FF |
1946 | |
1947 | static int | |
1948 | read_member_functions (fip, pp, type, objfile) | |
1949 | struct field_info *fip; | |
d07734e3 | 1950 | char **pp; |
e7177cc2 | 1951 | struct type *type; |
d07734e3 FF |
1952 | struct objfile *objfile; |
1953 | { | |
e7177cc2 FF |
1954 | int nfn_fields = 0; |
1955 | int length = 0; | |
1956 | /* Total number of member functions defined in this class. If the class | |
1957 | defines two `f' functions, and one `g' function, then this will have | |
1958 | the value 3. */ | |
d07734e3 | 1959 | int total_length = 0; |
e7177cc2 | 1960 | int i; |
d07734e3 FF |
1961 | struct next_fnfield |
1962 | { | |
1963 | struct next_fnfield *next; | |
1964 | struct fn_field fn_field; | |
e7177cc2 FF |
1965 | } *sublist; |
1966 | struct type *look_ahead_type; | |
1967 | struct next_fnfieldlist *new_fnlist; | |
1968 | struct next_fnfield *new_sublist; | |
1969 | char *main_fn_name; | |
d07734e3 | 1970 | register char *p; |
e7177cc2 FF |
1971 | |
1972 | /* Process each list until we find something that is not a member function | |
1973 | or find the end of the functions. */ | |
d07734e3 | 1974 | |
e7177cc2 | 1975 | while (**pp != ';') |
d07734e3 | 1976 | { |
e7177cc2 FF |
1977 | /* We should be positioned at the start of the function name. |
1978 | Scan forward to find the first ':' and if it is not the | |
1979 | first of a "::" delimiter, then this is not a member function. */ | |
1980 | p = *pp; | |
1981 | while (*p != ':') | |
1982 | { | |
1983 | p++; | |
1984 | } | |
1985 | if (p[1] != ':') | |
1986 | { | |
1987 | break; | |
1988 | } | |
d07734e3 | 1989 | |
e7177cc2 FF |
1990 | sublist = NULL; |
1991 | look_ahead_type = NULL; | |
1992 | length = 0; | |
1993 | ||
1994 | new_fnlist = (struct next_fnfieldlist *) | |
1995 | xmalloc (sizeof (struct next_fnfieldlist)); | |
1996 | make_cleanup (free, new_fnlist); | |
1997 | memset (new_fnlist, 0, sizeof (struct next_fnfieldlist)); | |
1998 | ||
1999 | if ((*pp)[0] == 'o' && (*pp)[1] == 'p' && (*pp)[2] == CPLUS_MARKER) | |
d07734e3 | 2000 | { |
e7177cc2 FF |
2001 | /* This is a completely wierd case. In order to stuff in the |
2002 | names that might contain colons (the usual name delimiter), | |
2003 | Mike Tiemann defined a different name format which is | |
2004 | signalled if the identifier is "op$". In that case, the | |
2005 | format is "op$::XXXX." where XXXX is the name. This is | |
2006 | used for names like "+" or "=". YUUUUUUUK! FIXME! */ | |
2007 | /* This lets the user type "break operator+". | |
2008 | We could just put in "+" as the name, but that wouldn't | |
2009 | work for "*". */ | |
2010 | static char opname[32] = {'o', 'p', CPLUS_MARKER}; | |
2011 | char *o = opname + 3; | |
2012 | ||
2013 | /* Skip past '::'. */ | |
2014 | *pp = p + 2; | |
d07734e3 | 2015 | |
2dd30c72 | 2016 | STABS_CONTINUE (pp, objfile); |
e7177cc2 FF |
2017 | p = *pp; |
2018 | while (*p != '.') | |
d07734e3 | 2019 | { |
e7177cc2 FF |
2020 | *o++ = *p++; |
2021 | } | |
2022 | main_fn_name = savestring (opname, o - opname); | |
2023 | /* Skip past '.' */ | |
2024 | *pp = p + 1; | |
2025 | } | |
2026 | else | |
2027 | { | |
2028 | main_fn_name = savestring (*pp, p - *pp); | |
2029 | /* Skip past '::'. */ | |
2030 | *pp = p + 2; | |
2031 | } | |
2032 | new_fnlist -> fn_fieldlist.name = main_fn_name; | |
2033 | ||
2034 | do | |
2035 | { | |
2036 | new_sublist = | |
2037 | (struct next_fnfield *) xmalloc (sizeof (struct next_fnfield)); | |
2038 | make_cleanup (free, new_sublist); | |
2039 | memset (new_sublist, 0, sizeof (struct next_fnfield)); | |
2040 | ||
2041 | /* Check for and handle cretinous dbx symbol name continuation! */ | |
2042 | if (look_ahead_type == NULL) | |
2043 | { | |
2044 | /* Normal case. */ | |
2dd30c72 | 2045 | STABS_CONTINUE (pp, objfile); |
e7177cc2 FF |
2046 | |
2047 | new_sublist -> fn_field.type = read_type (pp, objfile); | |
2048 | if (**pp != ':') | |
2049 | { | |
2050 | /* Invalid symtab info for member function. */ | |
2a021f21 | 2051 | return 0; |
e7177cc2 FF |
2052 | } |
2053 | } | |
2054 | else | |
2055 | { | |
2056 | /* g++ version 1 kludge */ | |
2057 | new_sublist -> fn_field.type = look_ahead_type; | |
2058 | look_ahead_type = NULL; | |
2059 | } | |
2060 | ||
2061 | (*pp)++; | |
2062 | p = *pp; | |
2063 | while (*p != ';') | |
2064 | { | |
2065 | p++; | |
d07734e3 | 2066 | } |
e7177cc2 FF |
2067 | |
2068 | /* If this is just a stub, then we don't have the real name here. */ | |
d07734e3 | 2069 | |
e7177cc2 FF |
2070 | if (TYPE_FLAGS (new_sublist -> fn_field.type) & TYPE_FLAG_STUB) |
2071 | { | |
39cb3d04 PS |
2072 | if (!TYPE_DOMAIN_TYPE (new_sublist -> fn_field.type)) |
2073 | TYPE_DOMAIN_TYPE (new_sublist -> fn_field.type) = type; | |
e7177cc2 FF |
2074 | new_sublist -> fn_field.is_stub = 1; |
2075 | } | |
2076 | new_sublist -> fn_field.physname = savestring (*pp, p - *pp); | |
2077 | *pp = p + 1; | |
2078 | ||
2079 | /* Set this member function's visibility fields. */ | |
2080 | switch (*(*pp)++) | |
2081 | { | |
2082 | case VISIBILITY_PRIVATE: | |
2083 | new_sublist -> fn_field.is_private = 1; | |
2084 | break; | |
2085 | case VISIBILITY_PROTECTED: | |
2086 | new_sublist -> fn_field.is_protected = 1; | |
2087 | break; | |
2088 | } | |
2089 | ||
2dd30c72 | 2090 | STABS_CONTINUE (pp, objfile); |
d07734e3 FF |
2091 | switch (**pp) |
2092 | { | |
e7177cc2 FF |
2093 | case 'A': /* Normal functions. */ |
2094 | new_sublist -> fn_field.is_const = 0; | |
2095 | new_sublist -> fn_field.is_volatile = 0; | |
2096 | (*pp)++; | |
2097 | break; | |
2098 | case 'B': /* `const' member functions. */ | |
2099 | new_sublist -> fn_field.is_const = 1; | |
2100 | new_sublist -> fn_field.is_volatile = 0; | |
2101 | (*pp)++; | |
2102 | break; | |
2103 | case 'C': /* `volatile' member function. */ | |
2104 | new_sublist -> fn_field.is_const = 0; | |
2105 | new_sublist -> fn_field.is_volatile = 1; | |
2106 | (*pp)++; | |
2107 | break; | |
2108 | case 'D': /* `const volatile' member function. */ | |
2109 | new_sublist -> fn_field.is_const = 1; | |
2110 | new_sublist -> fn_field.is_volatile = 1; | |
2111 | (*pp)++; | |
2112 | break; | |
2113 | case '*': /* File compiled with g++ version 1 -- no info */ | |
2114 | case '?': | |
2115 | case '.': | |
2116 | break; | |
2117 | default: | |
51b80b00 | 2118 | complain (&const_vol_complaint, **pp); |
e7177cc2 | 2119 | break; |
d07734e3 | 2120 | } |
e7177cc2 FF |
2121 | |
2122 | switch (*(*pp)++) | |
2123 | { | |
2124 | case '*': | |
ea753d03 JK |
2125 | { |
2126 | int nbits; | |
e7177cc2 FF |
2127 | /* virtual member function, followed by index. |
2128 | The sign bit is set to distinguish pointers-to-methods | |
2129 | from virtual function indicies. Since the array is | |
2130 | in words, the quantity must be shifted left by 1 | |
2131 | on 16 bit machine, and by 2 on 32 bit machine, forcing | |
2132 | the sign bit out, and usable as a valid index into | |
2133 | the array. Remove the sign bit here. */ | |
2134 | new_sublist -> fn_field.voffset = | |
ea753d03 JK |
2135 | (0x7fffffff & read_huge_number (pp, ';', &nbits)) + 2; |
2136 | if (nbits != 0) | |
2137 | return 0; | |
e7177cc2 | 2138 | |
2dd30c72 | 2139 | STABS_CONTINUE (pp, objfile); |
e7177cc2 FF |
2140 | if (**pp == ';' || **pp == '\0') |
2141 | { | |
2142 | /* Must be g++ version 1. */ | |
2143 | new_sublist -> fn_field.fcontext = 0; | |
2144 | } | |
2145 | else | |
2146 | { | |
2147 | /* Figure out from whence this virtual function came. | |
2148 | It may belong to virtual function table of | |
2149 | one of its baseclasses. */ | |
2150 | look_ahead_type = read_type (pp, objfile); | |
2151 | if (**pp == ':') | |
2152 | { | |
2153 | /* g++ version 1 overloaded methods. */ | |
2154 | } | |
2155 | else | |
2156 | { | |
2157 | new_sublist -> fn_field.fcontext = look_ahead_type; | |
2158 | if (**pp != ';') | |
2159 | { | |
2a021f21 | 2160 | return 0; |
e7177cc2 FF |
2161 | } |
2162 | else | |
2163 | { | |
2164 | ++*pp; | |
2165 | } | |
2166 | look_ahead_type = NULL; | |
2167 | } | |
2168 | } | |
2169 | break; | |
ea753d03 | 2170 | } |
e7177cc2 FF |
2171 | case '?': |
2172 | /* static member function. */ | |
2173 | new_sublist -> fn_field.voffset = VOFFSET_STATIC; | |
2174 | if (strncmp (new_sublist -> fn_field.physname, | |
2175 | main_fn_name, strlen (main_fn_name))) | |
2176 | { | |
2177 | new_sublist -> fn_field.is_stub = 1; | |
2178 | } | |
2179 | break; | |
2180 | ||
2181 | default: | |
2182 | /* error */ | |
51b80b00 | 2183 | complain (&member_fn_complaint, (*pp)[-1]); |
e7177cc2 FF |
2184 | /* Fall through into normal member function. */ |
2185 | ||
2186 | case '.': | |
2187 | /* normal member function. */ | |
2188 | new_sublist -> fn_field.voffset = 0; | |
2189 | new_sublist -> fn_field.fcontext = 0; | |
2190 | break; | |
2191 | } | |
2192 | ||
2193 | new_sublist -> next = sublist; | |
2194 | sublist = new_sublist; | |
2195 | length++; | |
2dd30c72 | 2196 | STABS_CONTINUE (pp, objfile); |
d07734e3 | 2197 | } |
e7177cc2 FF |
2198 | while (**pp != ';' && **pp != '\0'); |
2199 | ||
2200 | (*pp)++; | |
2201 | ||
2202 | new_fnlist -> fn_fieldlist.fn_fields = (struct fn_field *) | |
2203 | obstack_alloc (&objfile -> type_obstack, | |
2204 | sizeof (struct fn_field) * length); | |
2205 | memset (new_fnlist -> fn_fieldlist.fn_fields, 0, | |
2206 | sizeof (struct fn_field) * length); | |
2207 | for (i = length; (i--, sublist); sublist = sublist -> next) | |
2208 | { | |
2209 | new_fnlist -> fn_fieldlist.fn_fields[i] = sublist -> fn_field; | |
2210 | } | |
2211 | ||
2212 | new_fnlist -> fn_fieldlist.length = length; | |
2213 | new_fnlist -> next = fip -> fnlist; | |
2214 | fip -> fnlist = new_fnlist; | |
2215 | nfn_fields++; | |
2216 | total_length += length; | |
2dd30c72 | 2217 | STABS_CONTINUE (pp, objfile); |
d07734e3 FF |
2218 | } |
2219 | ||
e7177cc2 FF |
2220 | if (nfn_fields) |
2221 | { | |
2222 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
2223 | TYPE_FN_FIELDLISTS (type) = (struct fn_fieldlist *) | |
2224 | TYPE_ALLOC (type, sizeof (struct fn_fieldlist) * nfn_fields); | |
2225 | memset (TYPE_FN_FIELDLISTS (type), 0, | |
2226 | sizeof (struct fn_fieldlist) * nfn_fields); | |
2227 | TYPE_NFN_FIELDS (type) = nfn_fields; | |
2228 | TYPE_NFN_FIELDS_TOTAL (type) = total_length; | |
2229 | } | |
d07734e3 | 2230 | |
2a021f21 | 2231 | return 1; |
e7177cc2 | 2232 | } |
d07734e3 | 2233 | |
e7177cc2 | 2234 | /* Special GNU C++ name. |
d07734e3 | 2235 | |
ea753d03 JK |
2236 | Returns 1 for success, 0 for failure. "failure" means that we can't |
2237 | keep parsing and it's time for error_type(). */ | |
2238 | ||
2239 | static int | |
e7177cc2 FF |
2240 | read_cpp_abbrev (fip, pp, type, objfile) |
2241 | struct field_info *fip; | |
2242 | char **pp; | |
2243 | struct type *type; | |
2244 | struct objfile *objfile; | |
2245 | { | |
2246 | register char *p; | |
e7177cc2 | 2247 | char *name; |
2a021f21 | 2248 | char cpp_abbrev; |
e7177cc2 | 2249 | struct type *context; |
d07734e3 | 2250 | |
e7177cc2 FF |
2251 | p = *pp; |
2252 | if (*++p == 'v') | |
d07734e3 | 2253 | { |
e7177cc2 | 2254 | name = NULL; |
2a021f21 JG |
2255 | cpp_abbrev = *++p; |
2256 | ||
d07734e3 FF |
2257 | *pp = p + 1; |
2258 | ||
e7177cc2 FF |
2259 | /* At this point, *pp points to something like "22:23=*22...", |
2260 | where the type number before the ':' is the "context" and | |
2261 | everything after is a regular type definition. Lookup the | |
2262 | type, find it's name, and construct the field name. */ | |
2263 | ||
2264 | context = read_type (pp, objfile); | |
2a021f21 JG |
2265 | |
2266 | switch (cpp_abbrev) | |
d07734e3 | 2267 | { |
2a021f21 JG |
2268 | case 'f': /* $vf -- a virtual function table pointer */ |
2269 | fip->list->field.name = | |
2270 | obconcat (&objfile->type_obstack, vptr_name, "", ""); | |
2271 | break; | |
2272 | ||
2273 | case 'b': /* $vb -- a virtual bsomethingorother */ | |
2274 | name = type_name_no_tag (context); | |
2275 | if (name == NULL) | |
2276 | { | |
2277 | complain (&invalid_cpp_type_complaint, symnum); | |
2278 | name = "FOO"; | |
2279 | } | |
2280 | fip->list->field.name = | |
2281 | obconcat (&objfile->type_obstack, vb_name, name, ""); | |
2282 | break; | |
2283 | ||
2284 | default: | |
2285 | complain (&invalid_cpp_abbrev_complaint, *pp); | |
2286 | fip->list->field.name = | |
2287 | obconcat (&objfile->type_obstack, | |
2288 | "INVALID_CPLUSPLUS_ABBREV", "", ""); | |
2289 | break; | |
e7177cc2 | 2290 | } |
d07734e3 | 2291 | |
e7177cc2 FF |
2292 | /* At this point, *pp points to the ':'. Skip it and read the |
2293 | field type. */ | |
d07734e3 | 2294 | |
e7177cc2 FF |
2295 | p = ++(*pp); |
2296 | if (p[-1] != ':') | |
2297 | { | |
2298 | complain (&invalid_cpp_abbrev_complaint, *pp); | |
ea753d03 | 2299 | return 0; |
e7177cc2 | 2300 | } |
2a021f21 | 2301 | fip->list->field.type = read_type (pp, objfile); |
ea753d03 JK |
2302 | if (**pp == ',') |
2303 | (*pp)++; /* Skip the comma. */ | |
2304 | else | |
2305 | return 0; | |
2306 | ||
2307 | { | |
2308 | int nbits; | |
2309 | fip->list->field.bitpos = read_huge_number (pp, ';', &nbits); | |
2310 | if (nbits != 0) | |
2311 | return 0; | |
2312 | } | |
e7177cc2 | 2313 | /* This field is unpacked. */ |
2a021f21 JG |
2314 | fip->list->field.bitsize = 0; |
2315 | fip->list->visibility = VISIBILITY_PRIVATE; | |
e7177cc2 | 2316 | } |
e7177cc2 FF |
2317 | else |
2318 | { | |
2319 | complain (&invalid_cpp_abbrev_complaint, *pp); | |
089dc220 JK |
2320 | /* We have no idea what syntax an unrecognized abbrev would have, so |
2321 | better return 0. If we returned 1, we would need to at least advance | |
2322 | *pp to avoid an infinite loop. */ | |
2323 | return 0; | |
e7177cc2 | 2324 | } |
ea753d03 | 2325 | return 1; |
e7177cc2 | 2326 | } |
d07734e3 | 2327 | |
e7177cc2 FF |
2328 | static void |
2329 | read_one_struct_field (fip, pp, p, type, objfile) | |
2330 | struct field_info *fip; | |
2331 | char **pp; | |
2332 | char *p; | |
2333 | struct type *type; | |
2334 | struct objfile *objfile; | |
2335 | { | |
aeca85c1 KH |
2336 | /* The following is code to work around cfront generated stabs. |
2337 | The stabs contains full mangled name for each field. | |
2338 | We try to demangle the name and extract the field name out of it. | |
2339 | */ | |
771e0a5c | 2340 | if (ARM_DEMANGLING && current_subfile->language == language_cplus) |
aeca85c1 KH |
2341 | { |
2342 | char save_p; | |
2343 | char *dem, *dem_p; | |
2344 | save_p = *p; | |
2345 | *p = '\0'; | |
2346 | dem = cplus_demangle (*pp, DMGL_ANSI | DMGL_PARAMS); | |
2347 | if (dem != NULL) | |
2348 | { | |
2349 | dem_p = strrchr (dem, ':'); | |
2350 | if (dem_p != 0 && *(dem_p-1)==':') | |
2351 | dem_p++; | |
2352 | fip->list->field.name = | |
2353 | obsavestring (dem_p, strlen(dem_p), &objfile -> type_obstack); | |
2354 | } | |
2355 | else | |
2356 | { | |
2357 | fip->list->field.name = | |
2358 | obsavestring (*pp, p - *pp, &objfile -> type_obstack); | |
2359 | } | |
2360 | *p = save_p; | |
2361 | } | |
2362 | /* end of code for cfront work around */ | |
2363 | ||
2364 | else | |
2365 | fip -> list -> field.name = | |
e7177cc2 FF |
2366 | obsavestring (*pp, p - *pp, &objfile -> type_obstack); |
2367 | *pp = p + 1; | |
1dfaef62 | 2368 | |
e7177cc2 FF |
2369 | /* This means we have a visibility for a field coming. */ |
2370 | if (**pp == '/') | |
2371 | { | |
2372 | (*pp)++; | |
2373 | fip -> list -> visibility = *(*pp)++; | |
e7177cc2 FF |
2374 | } |
2375 | else | |
2376 | { | |
2377 | /* normal dbx-style format, no explicit visibility */ | |
2378 | fip -> list -> visibility = VISIBILITY_PUBLIC; | |
2379 | } | |
1dfaef62 | 2380 | |
e7177cc2 FF |
2381 | fip -> list -> field.type = read_type (pp, objfile); |
2382 | if (**pp == ':') | |
2383 | { | |
2384 | p = ++(*pp); | |
d07734e3 | 2385 | #if 0 |
e7177cc2 FF |
2386 | /* Possible future hook for nested types. */ |
2387 | if (**pp == '!') | |
d07734e3 | 2388 | { |
e7177cc2 FF |
2389 | fip -> list -> field.bitpos = (long)-2; /* nested type */ |
2390 | p = ++(*pp); | |
d07734e3 FF |
2391 | } |
2392 | else | |
e7177cc2 FF |
2393 | #endif |
2394 | { | |
2395 | /* Static class member. */ | |
2396 | fip -> list -> field.bitpos = (long) -1; | |
2397 | } | |
2398 | while (*p != ';') | |
2399 | { | |
2400 | p++; | |
2401 | } | |
2402 | fip -> list -> field.bitsize = (long) savestring (*pp, p - *pp); | |
2403 | *pp = p + 1; | |
2404 | return; | |
2405 | } | |
2406 | else if (**pp != ',') | |
2407 | { | |
2408 | /* Bad structure-type format. */ | |
2409 | complain (&stabs_general_complaint, "bad structure-type format"); | |
2410 | return; | |
2411 | } | |
ea753d03 | 2412 | |
e7177cc2 | 2413 | (*pp)++; /* Skip the comma. */ |
ea753d03 JK |
2414 | |
2415 | { | |
2416 | int nbits; | |
2417 | fip -> list -> field.bitpos = read_huge_number (pp, ',', &nbits); | |
2418 | if (nbits != 0) | |
2419 | { | |
2420 | complain (&stabs_general_complaint, "bad structure-type format"); | |
2421 | return; | |
2422 | } | |
2423 | fip -> list -> field.bitsize = read_huge_number (pp, ';', &nbits); | |
2424 | if (nbits != 0) | |
2425 | { | |
2426 | complain (&stabs_general_complaint, "bad structure-type format"); | |
2427 | return; | |
2428 | } | |
2429 | } | |
d4e68dec | 2430 | |
e7177cc2 FF |
2431 | if (fip -> list -> field.bitpos == 0 && fip -> list -> field.bitsize == 0) |
2432 | { | |
d4e68dec JK |
2433 | /* This can happen in two cases: (1) at least for gcc 2.4.5 or so, |
2434 | it is a field which has been optimized out. The correct stab for | |
2435 | this case is to use VISIBILITY_IGNORE, but that is a recent | |
2436 | invention. (2) It is a 0-size array. For example | |
2437 | union { int num; char str[0]; } foo. Printing "<no value>" for | |
2438 | str in "p foo" is OK, since foo.str (and thus foo.str[3]) | |
2439 | will continue to work, and a 0-size array as a whole doesn't | |
2440 | have any contents to print. | |
2441 | ||
2442 | I suspect this probably could also happen with gcc -gstabs (not | |
2443 | -gstabs+) for static fields, and perhaps other C++ extensions. | |
2444 | Hopefully few people use -gstabs with gdb, since it is intended | |
2445 | for dbx compatibility. */ | |
2446 | ||
e7177cc2 | 2447 | /* Ignore this field. */ |
024f65b1 | 2448 | fip -> list-> visibility = VISIBILITY_IGNORE; |
e7177cc2 FF |
2449 | } |
2450 | else | |
e7177cc2 FF |
2451 | { |
2452 | /* Detect an unpacked field and mark it as such. | |
2453 | dbx gives a bit size for all fields. | |
2454 | Note that forward refs cannot be packed, | |
2455 | and treat enums as if they had the width of ints. */ | |
1dfaef62 | 2456 | |
e7177cc2 FF |
2457 | if (TYPE_CODE (fip -> list -> field.type) != TYPE_CODE_INT |
2458 | && TYPE_CODE (fip -> list -> field.type) != TYPE_CODE_ENUM) | |
d07734e3 | 2459 | { |
e7177cc2 FF |
2460 | fip -> list -> field.bitsize = 0; |
2461 | } | |
2462 | if ((fip -> list -> field.bitsize | |
f52bde21 | 2463 | == TARGET_CHAR_BIT * TYPE_LENGTH (fip -> list -> field.type) |
e7177cc2 FF |
2464 | || (TYPE_CODE (fip -> list -> field.type) == TYPE_CODE_ENUM |
2465 | && (fip -> list -> field.bitsize | |
f52bde21 | 2466 | == TARGET_INT_BIT) |
d07734e3 | 2467 | ) |
e7177cc2 FF |
2468 | ) |
2469 | && | |
2470 | fip -> list -> field.bitpos % 8 == 0) | |
2471 | { | |
2472 | fip -> list -> field.bitsize = 0; | |
d07734e3 FF |
2473 | } |
2474 | } | |
e7177cc2 | 2475 | } |
d07734e3 | 2476 | |
d07734e3 | 2477 | |
e7177cc2 | 2478 | /* Read struct or class data fields. They have the form: |
d07734e3 | 2479 | |
e7177cc2 | 2480 | NAME : [VISIBILITY] TYPENUM , BITPOS , BITSIZE ; |
d07734e3 | 2481 | |
e7177cc2 FF |
2482 | At the end, we see a semicolon instead of a field. |
2483 | ||
2484 | In C++, this may wind up being NAME:?TYPENUM:PHYSNAME; for | |
2485 | a static field. | |
2486 | ||
2487 | The optional VISIBILITY is one of: | |
2488 | ||
2489 | '/0' (VISIBILITY_PRIVATE) | |
2490 | '/1' (VISIBILITY_PROTECTED) | |
2491 | '/2' (VISIBILITY_PUBLIC) | |
1dfaef62 | 2492 | '/9' (VISIBILITY_IGNORE) |
e7177cc2 | 2493 | |
ea753d03 JK |
2494 | or nothing, for C style fields with public visibility. |
2495 | ||
2496 | Returns 1 for success, 0 for failure. */ | |
d4e68dec | 2497 | |
e7177cc2 FF |
2498 | static int |
2499 | read_struct_fields (fip, pp, type, objfile) | |
2500 | struct field_info *fip; | |
2501 | char **pp; | |
2502 | struct type *type; | |
2503 | struct objfile *objfile; | |
2504 | { | |
2505 | register char *p; | |
2506 | struct nextfield *new; | |
2507 | ||
2508 | /* We better set p right now, in case there are no fields at all... */ | |
2509 | ||
2510 | p = *pp; | |
2511 | ||
2512 | /* Read each data member type until we find the terminating ';' at the end of | |
2513 | the data member list, or break for some other reason such as finding the | |
2514 | start of the member function list. */ | |
2515 | ||
2516 | while (**pp != ';') | |
d07734e3 | 2517 | { |
539dccd3 | 2518 | if (os9k_stabs && **pp == ',') break; |
2dd30c72 | 2519 | STABS_CONTINUE (pp, objfile); |
e7177cc2 FF |
2520 | /* Get space to record the next field's data. */ |
2521 | new = (struct nextfield *) xmalloc (sizeof (struct nextfield)); | |
2522 | make_cleanup (free, new); | |
2523 | memset (new, 0, sizeof (struct nextfield)); | |
2524 | new -> next = fip -> list; | |
2525 | fip -> list = new; | |
d07734e3 | 2526 | |
e7177cc2 FF |
2527 | /* Get the field name. */ |
2528 | p = *pp; | |
f73fb0ce JK |
2529 | |
2530 | /* If is starts with CPLUS_MARKER it is a special abbreviation, | |
2531 | unless the CPLUS_MARKER is followed by an underscore, in | |
2532 | which case it is just the name of an anonymous type, which we | |
2533 | should handle like any other type name. We accept either '$' | |
2534 | or '.', because a field name can never contain one of these | |
2535 | characters except as a CPLUS_MARKER (we probably should be | |
2536 | doing that in most parts of GDB). */ | |
2537 | ||
2538 | if ((*p == '$' || *p == '.') && p[1] != '_') | |
e7177cc2 | 2539 | { |
ea753d03 JK |
2540 | if (!read_cpp_abbrev (fip, pp, type, objfile)) |
2541 | return 0; | |
e7177cc2 FF |
2542 | continue; |
2543 | } | |
d07734e3 | 2544 | |
e7177cc2 FF |
2545 | /* Look for the ':' that separates the field name from the field |
2546 | values. Data members are delimited by a single ':', while member | |
2547 | functions are delimited by a pair of ':'s. When we hit the member | |
2548 | functions (if any), terminate scan loop and return. */ | |
d07734e3 | 2549 | |
ea753d03 | 2550 | while (*p != ':' && *p != '\0') |
e7177cc2 FF |
2551 | { |
2552 | p++; | |
2553 | } | |
ea753d03 JK |
2554 | if (*p == '\0') |
2555 | return 0; | |
d07734e3 | 2556 | |
e7177cc2 FF |
2557 | /* Check to see if we have hit the member functions yet. */ |
2558 | if (p[1] == ':') | |
2559 | { | |
2560 | break; | |
2561 | } | |
2562 | read_one_struct_field (fip, pp, p, type, objfile); | |
2563 | } | |
e9935d43 | 2564 | if (p[0] == ':' && p[1] == ':') |
d07734e3 | 2565 | { |
e7177cc2 FF |
2566 | /* chill the list of fields: the last entry (at the head) is a |
2567 | partially constructed entry which we now scrub. */ | |
2568 | fip -> list = fip -> list -> next; | |
d07734e3 | 2569 | } |
2a021f21 | 2570 | return 1; |
e7177cc2 | 2571 | } |
d07734e3 | 2572 | |
e7177cc2 FF |
2573 | /* The stabs for C++ derived classes contain baseclass information which |
2574 | is marked by a '!' character after the total size. This function is | |
2575 | called when we encounter the baseclass marker, and slurps up all the | |
2576 | baseclass information. | |
2577 | ||
2578 | Immediately following the '!' marker is the number of base classes that | |
2579 | the class is derived from, followed by information for each base class. | |
2580 | For each base class, there are two visibility specifiers, a bit offset | |
2581 | to the base class information within the derived class, a reference to | |
2582 | the type for the base class, and a terminating semicolon. | |
2583 | ||
2584 | A typical example, with two base classes, would be "!2,020,19;0264,21;". | |
2585 | ^^ ^ ^ ^ ^ ^ ^ | |
2586 | Baseclass information marker __________________|| | | | | | | | |
2587 | Number of baseclasses __________________________| | | | | | | | |
2588 | Visibility specifiers (2) ________________________| | | | | | | |
2589 | Offset in bits from start of class _________________| | | | | | |
2590 | Type number for base class ___________________________| | | | | |
2591 | Visibility specifiers (2) _______________________________| | | | |
2592 | Offset in bits from start of class ________________________| | | |
2593 | Type number of base class ____________________________________| | |
ea753d03 JK |
2594 | |
2595 | Return 1 for success, 0 for (error-type-inducing) failure. */ | |
e7177cc2 FF |
2596 | |
2597 | static int | |
2598 | read_baseclasses (fip, pp, type, objfile) | |
2599 | struct field_info *fip; | |
2600 | char **pp; | |
2601 | struct type *type; | |
2602 | struct objfile *objfile; | |
2603 | { | |
2604 | int i; | |
2605 | struct nextfield *new; | |
d07734e3 | 2606 | |
e7177cc2 FF |
2607 | if (**pp != '!') |
2608 | { | |
2a021f21 | 2609 | return 1; |
e7177cc2 FF |
2610 | } |
2611 | else | |
d07734e3 | 2612 | { |
e7177cc2 FF |
2613 | /* Skip the '!' baseclass information marker. */ |
2614 | (*pp)++; | |
2615 | } | |
d07734e3 | 2616 | |
e7177cc2 | 2617 | ALLOCATE_CPLUS_STRUCT_TYPE (type); |
ea753d03 JK |
2618 | { |
2619 | int nbits; | |
2620 | TYPE_N_BASECLASSES (type) = read_huge_number (pp, ',', &nbits); | |
2621 | if (nbits != 0) | |
2622 | return 0; | |
2623 | } | |
d07734e3 | 2624 | |
e7177cc2 FF |
2625 | #if 0 |
2626 | /* Some stupid compilers have trouble with the following, so break | |
2627 | it up into simpler expressions. */ | |
2628 | TYPE_FIELD_VIRTUAL_BITS (type) = (B_TYPE *) | |
2629 | TYPE_ALLOC (type, B_BYTES (TYPE_N_BASECLASSES (type))); | |
2630 | #else | |
2631 | { | |
2632 | int num_bytes = B_BYTES (TYPE_N_BASECLASSES (type)); | |
2633 | char *pointer; | |
d07734e3 | 2634 | |
e7177cc2 FF |
2635 | pointer = (char *) TYPE_ALLOC (type, num_bytes); |
2636 | TYPE_FIELD_VIRTUAL_BITS (type) = (B_TYPE *) pointer; | |
2637 | } | |
2638 | #endif /* 0 */ | |
d07734e3 | 2639 | |
e7177cc2 | 2640 | B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type), TYPE_N_BASECLASSES (type)); |
d07734e3 | 2641 | |
e7177cc2 FF |
2642 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
2643 | { | |
2644 | new = (struct nextfield *) xmalloc (sizeof (struct nextfield)); | |
2645 | make_cleanup (free, new); | |
2646 | memset (new, 0, sizeof (struct nextfield)); | |
2647 | new -> next = fip -> list; | |
2648 | fip -> list = new; | |
2649 | new -> field.bitsize = 0; /* this should be an unpacked field! */ | |
d07734e3 | 2650 | |
2dd30c72 | 2651 | STABS_CONTINUE (pp, objfile); |
1dfaef62 | 2652 | switch (**pp) |
e7177cc2 FF |
2653 | { |
2654 | case '0': | |
2655 | /* Nothing to do. */ | |
2656 | break; | |
2657 | case '1': | |
2658 | SET_TYPE_FIELD_VIRTUAL (type, i); | |
2659 | break; | |
2660 | default: | |
1dfaef62 JK |
2661 | /* Unknown character. Complain and treat it as non-virtual. */ |
2662 | { | |
2663 | static struct complaint msg = { | |
2664 | "Unknown virtual character `%c' for baseclass", 0, 0}; | |
2665 | complain (&msg, **pp); | |
2666 | } | |
e7177cc2 | 2667 | } |
1dfaef62 | 2668 | ++(*pp); |
d07734e3 | 2669 | |
e7177cc2 FF |
2670 | new -> visibility = *(*pp)++; |
2671 | switch (new -> visibility) | |
2672 | { | |
2673 | case VISIBILITY_PRIVATE: | |
2674 | case VISIBILITY_PROTECTED: | |
2675 | case VISIBILITY_PUBLIC: | |
2676 | break; | |
2677 | default: | |
1dfaef62 JK |
2678 | /* Bad visibility format. Complain and treat it as |
2679 | public. */ | |
2680 | { | |
2681 | static struct complaint msg = { | |
2682 | "Unknown visibility `%c' for baseclass", 0, 0}; | |
2683 | complain (&msg, new -> visibility); | |
2684 | new -> visibility = VISIBILITY_PUBLIC; | |
2685 | } | |
e7177cc2 | 2686 | } |
d07734e3 | 2687 | |
ea753d03 JK |
2688 | { |
2689 | int nbits; | |
2690 | ||
2691 | /* The remaining value is the bit offset of the portion of the object | |
2692 | corresponding to this baseclass. Always zero in the absence of | |
2693 | multiple inheritance. */ | |
d07734e3 | 2694 | |
ea753d03 JK |
2695 | new -> field.bitpos = read_huge_number (pp, ',', &nbits); |
2696 | if (nbits != 0) | |
2697 | return 0; | |
2698 | } | |
d07734e3 | 2699 | |
ea753d03 JK |
2700 | /* The last piece of baseclass information is the type of the |
2701 | base class. Read it, and remember it's type name as this | |
2702 | field's name. */ | |
d07734e3 | 2703 | |
e7177cc2 FF |
2704 | new -> field.type = read_type (pp, objfile); |
2705 | new -> field.name = type_name_no_tag (new -> field.type); | |
d07734e3 | 2706 | |
e7177cc2 | 2707 | /* skip trailing ';' and bump count of number of fields seen */ |
ea753d03 JK |
2708 | if (**pp == ';') |
2709 | (*pp)++; | |
2710 | else | |
2711 | return 0; | |
d07734e3 | 2712 | } |
2a021f21 | 2713 | return 1; |
e7177cc2 | 2714 | } |
d07734e3 | 2715 | |
2a021f21 JG |
2716 | /* The tail end of stabs for C++ classes that contain a virtual function |
2717 | pointer contains a tilde, a %, and a type number. | |
2718 | The type number refers to the base class (possibly this class itself) which | |
2719 | contains the vtable pointer for the current class. | |
2720 | ||
2721 | This function is called when we have parsed all the method declarations, | |
2722 | so we can look for the vptr base class info. */ | |
2723 | ||
e7177cc2 FF |
2724 | static int |
2725 | read_tilde_fields (fip, pp, type, objfile) | |
2726 | struct field_info *fip; | |
2727 | char **pp; | |
2728 | struct type *type; | |
2729 | struct objfile *objfile; | |
2730 | { | |
2731 | register char *p; | |
d07734e3 | 2732 | |
2dd30c72 | 2733 | STABS_CONTINUE (pp, objfile); |
d07734e3 | 2734 | |
e7177cc2 FF |
2735 | /* If we are positioned at a ';', then skip it. */ |
2736 | if (**pp == ';') | |
d07734e3 | 2737 | { |
e7177cc2 | 2738 | (*pp)++; |
d07734e3 FF |
2739 | } |
2740 | ||
d07734e3 FF |
2741 | if (**pp == '~') |
2742 | { | |
e7177cc2 | 2743 | (*pp)++; |
d07734e3 FF |
2744 | |
2745 | if (**pp == '=' || **pp == '+' || **pp == '-') | |
2746 | { | |
2747 | /* Obsolete flags that used to indicate the presence | |
2748 | of constructors and/or destructors. */ | |
e7177cc2 | 2749 | (*pp)++; |
d07734e3 FF |
2750 | } |
2751 | ||
2752 | /* Read either a '%' or the final ';'. */ | |
2753 | if (*(*pp)++ == '%') | |
2754 | { | |
2a021f21 JG |
2755 | /* The next number is the type number of the base class |
2756 | (possibly our own class) which supplies the vtable for | |
2757 | this class. Parse it out, and search that class to find | |
2758 | its vtable pointer, and install those into TYPE_VPTR_BASETYPE | |
2759 | and TYPE_VPTR_FIELDNO. */ | |
d07734e3 FF |
2760 | |
2761 | struct type *t; | |
2762 | int i; | |
2763 | ||
d07734e3 FF |
2764 | t = read_type (pp, objfile); |
2765 | p = (*pp)++; | |
2766 | while (*p != '\0' && *p != ';') | |
e7177cc2 FF |
2767 | { |
2768 | p++; | |
2769 | } | |
d07734e3 | 2770 | if (*p == '\0') |
e7177cc2 FF |
2771 | { |
2772 | /* Premature end of symbol. */ | |
2a021f21 | 2773 | return 0; |
e7177cc2 | 2774 | } |
d07734e3 FF |
2775 | |
2776 | TYPE_VPTR_BASETYPE (type) = t; | |
2a021f21 | 2777 | if (type == t) /* Our own class provides vtbl ptr */ |
d07734e3 | 2778 | { |
2a021f21 JG |
2779 | for (i = TYPE_NFIELDS (t) - 1; |
2780 | i >= TYPE_N_BASECLASSES (t); | |
2781 | --i) | |
d07734e3 | 2782 | { |
2a021f21 JG |
2783 | if (! strncmp (TYPE_FIELD_NAME (t, i), vptr_name, |
2784 | sizeof (vptr_name) - 1)) | |
e7177cc2 | 2785 | { |
2a021f21 JG |
2786 | TYPE_VPTR_FIELDNO (type) = i; |
2787 | goto gotit; | |
e7177cc2 FF |
2788 | } |
2789 | } | |
2a021f21 | 2790 | /* Virtual function table field not found. */ |
b646b438 | 2791 | complain (&vtbl_notfound_complaint, TYPE_NAME (type)); |
2a021f21 | 2792 | return 0; |
d07734e3 FF |
2793 | } |
2794 | else | |
e7177cc2 FF |
2795 | { |
2796 | TYPE_VPTR_FIELDNO (type) = TYPE_VPTR_FIELDNO (t); | |
2797 | } | |
d07734e3 | 2798 | |
2a021f21 | 2799 | gotit: |
d07734e3 FF |
2800 | *pp = p + 1; |
2801 | } | |
2802 | } | |
2a021f21 | 2803 | return 1; |
e7177cc2 | 2804 | } |
d07734e3 | 2805 | |
e7177cc2 FF |
2806 | static int |
2807 | attach_fn_fields_to_type (fip, type) | |
2808 | struct field_info *fip; | |
2809 | register struct type *type; | |
2810 | { | |
2811 | register int n; | |
2812 | ||
e7177cc2 FF |
2813 | for (n = TYPE_NFN_FIELDS (type); |
2814 | fip -> fnlist != NULL; | |
2815 | fip -> fnlist = fip -> fnlist -> next) | |
2816 | { | |
2817 | --n; /* Circumvent Sun3 compiler bug */ | |
2818 | TYPE_FN_FIELDLISTS (type)[n] = fip -> fnlist -> fn_fieldlist; | |
2819 | } | |
2a021f21 | 2820 | return 1; |
e7177cc2 FF |
2821 | } |
2822 | ||
2823 | /* Create the vector of fields, and record how big it is. | |
2824 | We need this info to record proper virtual function table information | |
2825 | for this class's virtual functions. */ | |
2826 | ||
2827 | static int | |
2828 | attach_fields_to_type (fip, type, objfile) | |
2829 | struct field_info *fip; | |
2830 | register struct type *type; | |
2831 | struct objfile *objfile; | |
2832 | { | |
2833 | register int nfields = 0; | |
2834 | register int non_public_fields = 0; | |
2835 | register struct nextfield *scan; | |
2836 | ||
2837 | /* Count up the number of fields that we have, as well as taking note of | |
2838 | whether or not there are any non-public fields, which requires us to | |
2839 | allocate and build the private_field_bits and protected_field_bits | |
2840 | bitfields. */ | |
2841 | ||
2842 | for (scan = fip -> list; scan != NULL; scan = scan -> next) | |
2843 | { | |
2844 | nfields++; | |
2845 | if (scan -> visibility != VISIBILITY_PUBLIC) | |
2846 | { | |
2847 | non_public_fields++; | |
2848 | } | |
2849 | } | |
2850 | ||
2851 | /* Now we know how many fields there are, and whether or not there are any | |
2852 | non-public fields. Record the field count, allocate space for the | |
2853 | array of fields, and create blank visibility bitfields if necessary. */ | |
2854 | ||
2855 | TYPE_NFIELDS (type) = nfields; | |
2856 | TYPE_FIELDS (type) = (struct field *) | |
2857 | TYPE_ALLOC (type, sizeof (struct field) * nfields); | |
2858 | memset (TYPE_FIELDS (type), 0, sizeof (struct field) * nfields); | |
2859 | ||
2860 | if (non_public_fields) | |
2861 | { | |
2862 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
2863 | ||
2864 | TYPE_FIELD_PRIVATE_BITS (type) = | |
2865 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); | |
2866 | B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type), nfields); | |
2867 | ||
2868 | TYPE_FIELD_PROTECTED_BITS (type) = | |
2869 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); | |
2870 | B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type), nfields); | |
024f65b1 KH |
2871 | |
2872 | TYPE_FIELD_IGNORE_BITS (type) = | |
2873 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); | |
2874 | B_CLRALL (TYPE_FIELD_IGNORE_BITS (type), nfields); | |
e7177cc2 FF |
2875 | } |
2876 | ||
2877 | /* Copy the saved-up fields into the field vector. Start from the head | |
2878 | of the list, adding to the tail of the field array, so that they end | |
2879 | up in the same order in the array in which they were added to the list. */ | |
2880 | ||
2881 | while (nfields-- > 0) | |
2882 | { | |
2883 | TYPE_FIELD (type, nfields) = fip -> list -> field; | |
2884 | switch (fip -> list -> visibility) | |
2885 | { | |
2886 | case VISIBILITY_PRIVATE: | |
2887 | SET_TYPE_FIELD_PRIVATE (type, nfields); | |
2888 | break; | |
2889 | ||
2890 | case VISIBILITY_PROTECTED: | |
2891 | SET_TYPE_FIELD_PROTECTED (type, nfields); | |
2892 | break; | |
2893 | ||
024f65b1 KH |
2894 | case VISIBILITY_IGNORE: |
2895 | SET_TYPE_FIELD_IGNORE (type, nfields); | |
1dfaef62 | 2896 | break; |
024f65b1 | 2897 | |
e7177cc2 FF |
2898 | case VISIBILITY_PUBLIC: |
2899 | break; | |
2900 | ||
2901 | default: | |
1dfaef62 JK |
2902 | /* Unknown visibility. Complain and treat it as public. */ |
2903 | { | |
2904 | static struct complaint msg = { | |
2905 | "Unknown visibility `%c' for field", 0, 0}; | |
2906 | complain (&msg, fip -> list -> visibility); | |
2907 | } | |
e7177cc2 FF |
2908 | break; |
2909 | } | |
2910 | fip -> list = fip -> list -> next; | |
2911 | } | |
2a021f21 | 2912 | return 1; |
e7177cc2 FF |
2913 | } |
2914 | ||
2915 | /* Read the description of a structure (or union type) and return an object | |
2916 | describing the type. | |
2917 | ||
2918 | PP points to a character pointer that points to the next unconsumed token | |
2919 | in the the stabs string. For example, given stabs "A:T4=s4a:1,0,32;;", | |
2920 | *PP will point to "4a:1,0,32;;". | |
2921 | ||
2922 | TYPE points to an incomplete type that needs to be filled in. | |
2923 | ||
2924 | OBJFILE points to the current objfile from which the stabs information is | |
2925 | being read. (Note that it is redundant in that TYPE also contains a pointer | |
2926 | to this same objfile, so it might be a good idea to eliminate it. FIXME). | |
2927 | */ | |
2928 | ||
2929 | static struct type * | |
2930 | read_struct_type (pp, type, objfile) | |
2931 | char **pp; | |
2932 | struct type *type; | |
2933 | struct objfile *objfile; | |
2934 | { | |
2935 | struct cleanup *back_to; | |
2936 | struct field_info fi; | |
2937 | ||
2938 | fi.list = NULL; | |
2939 | fi.fnlist = NULL; | |
2940 | ||
2941 | back_to = make_cleanup (null_cleanup, 0); | |
2942 | ||
2943 | INIT_CPLUS_SPECIFIC (type); | |
2944 | TYPE_FLAGS (type) &= ~TYPE_FLAG_STUB; | |
2945 | ||
2946 | /* First comes the total size in bytes. */ | |
2947 | ||
ea753d03 JK |
2948 | { |
2949 | int nbits; | |
2950 | TYPE_LENGTH (type) = read_huge_number (pp, 0, &nbits); | |
2951 | if (nbits != 0) | |
2dd30c72 | 2952 | return error_type (pp, objfile); |
ea753d03 | 2953 | } |
e7177cc2 FF |
2954 | |
2955 | /* Now read the baseclasses, if any, read the regular C struct or C++ | |
2956 | class member fields, attach the fields to the type, read the C++ | |
2957 | member functions, attach them to the type, and then read any tilde | |
dd469789 JG |
2958 | field (baseclass specifier for the class holding the main vtable). */ |
2959 | ||
8a177da6 PB |
2960 | if (!read_baseclasses (&fi, pp, type, objfile) |
2961 | || !read_struct_fields (&fi, pp, type, objfile) | |
2962 | || !attach_fields_to_type (&fi, type, objfile) | |
2963 | || !read_member_functions (&fi, pp, type, objfile) | |
2964 | || !attach_fn_fields_to_type (&fi, type) | |
2965 | || !read_tilde_fields (&fi, pp, type, objfile)) | |
e7177cc2 FF |
2966 | { |
2967 | do_cleanups (back_to); | |
2dd30c72 | 2968 | return (error_type (pp, objfile)); |
e7177cc2 FF |
2969 | } |
2970 | ||
2971 | do_cleanups (back_to); | |
2972 | return (type); | |
d07734e3 FF |
2973 | } |
2974 | ||
2975 | /* Read a definition of an array type, | |
2976 | and create and return a suitable type object. | |
2977 | Also creates a range type which represents the bounds of that | |
2978 | array. */ | |
2979 | ||
2980 | static struct type * | |
2981 | read_array_type (pp, type, objfile) | |
2982 | register char **pp; | |
2983 | register struct type *type; | |
2984 | struct objfile *objfile; | |
2985 | { | |
2986 | struct type *index_type, *element_type, *range_type; | |
2987 | int lower, upper; | |
2988 | int adjustable = 0; | |
ea753d03 | 2989 | int nbits; |
d07734e3 FF |
2990 | |
2991 | /* Format of an array type: | |
25200748 JK |
2992 | "ar<index type>;lower;upper;<array_contents_type>". |
2993 | OS9000: "arlower,upper;<array_contents_type>". | |
d07734e3 FF |
2994 | |
2995 | Fortran adjustable arrays use Adigits or Tdigits for lower or upper; | |
2996 | for these, produce a type like float[][]. */ | |
2997 | ||
25200748 JK |
2998 | if (os9k_stabs) |
2999 | index_type = builtin_type_int; | |
3000 | else | |
3001 | { | |
3002 | index_type = read_type (pp, objfile); | |
3003 | if (**pp != ';') | |
3004 | /* Improper format of array type decl. */ | |
2dd30c72 | 3005 | return error_type (pp, objfile); |
25200748 JK |
3006 | ++*pp; |
3007 | } | |
d07734e3 | 3008 | |
11b959da | 3009 | if (!(**pp >= '0' && **pp <= '9') && **pp != '-') |
d07734e3 | 3010 | { |
e7177cc2 | 3011 | (*pp)++; |
d07734e3 FF |
3012 | adjustable = 1; |
3013 | } | |
25200748 | 3014 | lower = read_huge_number (pp, os9k_stabs ? ',' : ';', &nbits); |
ea753d03 | 3015 | if (nbits != 0) |
2dd30c72 | 3016 | return error_type (pp, objfile); |
d07734e3 | 3017 | |
11b959da | 3018 | if (!(**pp >= '0' && **pp <= '9') && **pp != '-') |
d07734e3 | 3019 | { |
e7177cc2 | 3020 | (*pp)++; |
d07734e3 FF |
3021 | adjustable = 1; |
3022 | } | |
ea753d03 JK |
3023 | upper = read_huge_number (pp, ';', &nbits); |
3024 | if (nbits != 0) | |
2dd30c72 | 3025 | return error_type (pp, objfile); |
d07734e3 FF |
3026 | |
3027 | element_type = read_type (pp, objfile); | |
3028 | ||
3029 | if (adjustable) | |
3030 | { | |
3031 | lower = 0; | |
3032 | upper = -1; | |
3033 | } | |
3034 | ||
a8a69e63 FF |
3035 | range_type = |
3036 | create_range_type ((struct type *) NULL, index_type, lower, upper); | |
3037 | type = create_array_type (type, element_type, range_type); | |
d07734e3 | 3038 | |
d07734e3 FF |
3039 | return type; |
3040 | } | |
3041 | ||
3042 | ||
3043 | /* Read a definition of an enumeration type, | |
3044 | and create and return a suitable type object. | |
3045 | Also defines the symbols that represent the values of the type. */ | |
3046 | ||
3047 | static struct type * | |
3048 | read_enum_type (pp, type, objfile) | |
3049 | register char **pp; | |
3050 | register struct type *type; | |
3051 | struct objfile *objfile; | |
3052 | { | |
3053 | register char *p; | |
3054 | char *name; | |
3055 | register long n; | |
3056 | register struct symbol *sym; | |
3057 | int nsyms = 0; | |
3058 | struct pending **symlist; | |
3059 | struct pending *osyms, *syms; | |
3060 | int o_nsyms; | |
25200748 | 3061 | int nbits; |
080868b4 | 3062 | int unsigned_enum = 1; |
d07734e3 FF |
3063 | |
3064 | #if 0 | |
3065 | /* FIXME! The stabs produced by Sun CC merrily define things that ought | |
3066 | to be file-scope, between N_FN entries, using N_LSYM. What's a mother | |
3067 | to do? For now, force all enum values to file scope. */ | |
3068 | if (within_function) | |
3069 | symlist = &local_symbols; | |
3070 | else | |
3071 | #endif | |
3072 | symlist = &file_symbols; | |
3073 | osyms = *symlist; | |
3074 | o_nsyms = osyms ? osyms->nsyms : 0; | |
3075 | ||
25200748 JK |
3076 | if (os9k_stabs) |
3077 | { | |
3078 | /* Size. Perhaps this does not have to be conditionalized on | |
3079 | os9k_stabs (assuming the name of an enum constant can't start | |
3080 | with a digit). */ | |
3081 | read_huge_number (pp, 0, &nbits); | |
3082 | if (nbits != 0) | |
2dd30c72 | 3083 | return error_type (pp, objfile); |
25200748 JK |
3084 | } |
3085 | ||
65eaea27 JL |
3086 | /* The aix4 compiler emits an extra field before the enum members; |
3087 | my guess is it's a type of some sort. Just ignore it. */ | |
3088 | if (**pp == '-') | |
3089 | { | |
3090 | /* Skip over the type. */ | |
3091 | while (**pp != ':') | |
3092 | (*pp)++; | |
3093 | ||
3094 | /* Skip over the colon. */ | |
3095 | (*pp)++; | |
3096 | } | |
3097 | ||
d07734e3 FF |
3098 | /* Read the value-names and their values. |
3099 | The input syntax is NAME:VALUE,NAME:VALUE, and so on. | |
3100 | A semicolon or comma instead of a NAME means the end. */ | |
3101 | while (**pp && **pp != ';' && **pp != ',') | |
3102 | { | |
2dd30c72 | 3103 | STABS_CONTINUE (pp, objfile); |
d07734e3 FF |
3104 | p = *pp; |
3105 | while (*p != ':') p++; | |
3106 | name = obsavestring (*pp, p - *pp, &objfile -> symbol_obstack); | |
3107 | *pp = p + 1; | |
ea753d03 JK |
3108 | n = read_huge_number (pp, ',', &nbits); |
3109 | if (nbits != 0) | |
2dd30c72 | 3110 | return error_type (pp, objfile); |
d07734e3 | 3111 | |
c02a37ea FF |
3112 | sym = (struct symbol *) |
3113 | obstack_alloc (&objfile -> symbol_obstack, sizeof (struct symbol)); | |
d07734e3 FF |
3114 | memset (sym, 0, sizeof (struct symbol)); |
3115 | SYMBOL_NAME (sym) = name; | |
2e4964ad | 3116 | SYMBOL_LANGUAGE (sym) = current_subfile -> language; |
d07734e3 FF |
3117 | SYMBOL_CLASS (sym) = LOC_CONST; |
3118 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
3119 | SYMBOL_VALUE (sym) = n; | |
080868b4 PS |
3120 | if (n < 0) |
3121 | unsigned_enum = 0; | |
d07734e3 FF |
3122 | add_symbol_to_list (sym, symlist); |
3123 | nsyms++; | |
3124 | } | |
3125 | ||
3126 | if (**pp == ';') | |
3127 | (*pp)++; /* Skip the semicolon. */ | |
3128 | ||
3129 | /* Now fill in the fields of the type-structure. */ | |
3130 | ||
eaba7fae | 3131 | TYPE_LENGTH (type) = TARGET_INT_BIT / HOST_CHAR_BIT; |
d07734e3 FF |
3132 | TYPE_CODE (type) = TYPE_CODE_ENUM; |
3133 | TYPE_FLAGS (type) &= ~TYPE_FLAG_STUB; | |
080868b4 PS |
3134 | if (unsigned_enum) |
3135 | TYPE_FLAGS (type) |= TYPE_FLAG_UNSIGNED; | |
d07734e3 FF |
3136 | TYPE_NFIELDS (type) = nsyms; |
3137 | TYPE_FIELDS (type) = (struct field *) | |
dac9734e | 3138 | TYPE_ALLOC (type, sizeof (struct field) * nsyms); |
c02a37ea | 3139 | memset (TYPE_FIELDS (type), 0, sizeof (struct field) * nsyms); |
d07734e3 FF |
3140 | |
3141 | /* Find the symbols for the values and put them into the type. | |
3142 | The symbols can be found in the symlist that we put them on | |
3143 | to cause them to be defined. osyms contains the old value | |
3144 | of that symlist; everything up to there was defined by us. */ | |
3145 | /* Note that we preserve the order of the enum constants, so | |
3146 | that in something like "enum {FOO, LAST_THING=FOO}" we print | |
3147 | FOO, not LAST_THING. */ | |
3148 | ||
b6a40d0c | 3149 | for (syms = *symlist, n = nsyms - 1; syms; syms = syms->next) |
d07734e3 | 3150 | { |
0f8631fb PB |
3151 | int last = syms == osyms ? o_nsyms : 0; |
3152 | int j = syms->nsyms; | |
3153 | for (; --j >= last; --n) | |
d07734e3 FF |
3154 | { |
3155 | struct symbol *xsym = syms->symbol[j]; | |
3156 | SYMBOL_TYPE (xsym) = type; | |
3157 | TYPE_FIELD_NAME (type, n) = SYMBOL_NAME (xsym); | |
3158 | TYPE_FIELD_VALUE (type, n) = 0; | |
3159 | TYPE_FIELD_BITPOS (type, n) = SYMBOL_VALUE (xsym); | |
3160 | TYPE_FIELD_BITSIZE (type, n) = 0; | |
3161 | } | |
3162 | if (syms == osyms) | |
3163 | break; | |
3164 | } | |
3165 | ||
d07734e3 FF |
3166 | return type; |
3167 | } | |
3168 | ||
3169 | /* Sun's ACC uses a somewhat saner method for specifying the builtin | |
3170 | typedefs in every file (for int, long, etc): | |
3171 | ||
3172 | type = b <signed> <width>; <offset>; <nbits> | |
3173 | signed = u or s. Possible c in addition to u or s (for char?). | |
3174 | offset = offset from high order bit to start bit of type. | |
3175 | width is # bytes in object of this type, nbits is # bits in type. | |
3176 | ||
3177 | The width/offset stuff appears to be for small objects stored in | |
3178 | larger ones (e.g. `shorts' in `int' registers). We ignore it for now, | |
3179 | FIXME. */ | |
3180 | ||
3181 | static struct type * | |
3182 | read_sun_builtin_type (pp, typenums, objfile) | |
3183 | char **pp; | |
3184 | int typenums[2]; | |
3185 | struct objfile *objfile; | |
3186 | { | |
ea753d03 | 3187 | int type_bits; |
d07734e3 FF |
3188 | int nbits; |
3189 | int signed_type; | |
3190 | ||
3191 | switch (**pp) | |
3192 | { | |
3193 | case 's': | |
3194 | signed_type = 1; | |
3195 | break; | |
3196 | case 'u': | |
3197 | signed_type = 0; | |
3198 | break; | |
3199 | default: | |
2dd30c72 | 3200 | return error_type (pp, objfile); |
d07734e3 FF |
3201 | } |
3202 | (*pp)++; | |
3203 | ||
3204 | /* For some odd reason, all forms of char put a c here. This is strange | |
3205 | because no other type has this honor. We can safely ignore this because | |
3206 | we actually determine 'char'acterness by the number of bits specified in | |
3207 | the descriptor. */ | |
3208 | ||
3209 | if (**pp == 'c') | |
3210 | (*pp)++; | |
3211 | ||
3212 | /* The first number appears to be the number of bytes occupied | |
3213 | by this type, except that unsigned short is 4 instead of 2. | |
3214 | Since this information is redundant with the third number, | |
3215 | we will ignore it. */ | |
ea753d03 JK |
3216 | read_huge_number (pp, ';', &nbits); |
3217 | if (nbits != 0) | |
2dd30c72 | 3218 | return error_type (pp, objfile); |
d07734e3 FF |
3219 | |
3220 | /* The second number is always 0, so ignore it too. */ | |
ea753d03 JK |
3221 | read_huge_number (pp, ';', &nbits); |
3222 | if (nbits != 0) | |
2dd30c72 | 3223 | return error_type (pp, objfile); |
d07734e3 FF |
3224 | |
3225 | /* The third number is the number of bits for this type. */ | |
ea753d03 JK |
3226 | type_bits = read_huge_number (pp, 0, &nbits); |
3227 | if (nbits != 0) | |
2dd30c72 | 3228 | return error_type (pp, objfile); |
159ada02 JK |
3229 | /* The type *should* end with a semicolon. If it are embedded |
3230 | in a larger type the semicolon may be the only way to know where | |
3231 | the type ends. If this type is at the end of the stabstring we | |
3232 | can deal with the omitted semicolon (but we don't have to like | |
3233 | it). Don't bother to complain(), Sun's compiler omits the semicolon | |
3234 | for "void". */ | |
3235 | if (**pp == ';') | |
3236 | ++(*pp); | |
d07734e3 | 3237 | |
2f3b7d8e JK |
3238 | if (type_bits == 0) |
3239 | return init_type (TYPE_CODE_VOID, 1, | |
3240 | signed_type ? 0 : TYPE_FLAG_UNSIGNED, (char *)NULL, | |
3241 | objfile); | |
3242 | else | |
3243 | return init_type (TYPE_CODE_INT, | |
3244 | type_bits / TARGET_CHAR_BIT, | |
3245 | signed_type ? 0 : TYPE_FLAG_UNSIGNED, (char *)NULL, | |
3246 | objfile); | |
d07734e3 FF |
3247 | } |
3248 | ||
3249 | static struct type * | |
3250 | read_sun_floating_type (pp, typenums, objfile) | |
3251 | char **pp; | |
3252 | int typenums[2]; | |
3253 | struct objfile *objfile; | |
3254 | { | |
ea753d03 | 3255 | int nbits; |
f52bde21 | 3256 | int details; |
d07734e3 FF |
3257 | int nbytes; |
3258 | ||
3259 | /* The first number has more details about the type, for example | |
f52bde21 | 3260 | FN_COMPLEX. */ |
ea753d03 JK |
3261 | details = read_huge_number (pp, ';', &nbits); |
3262 | if (nbits != 0) | |
2dd30c72 | 3263 | return error_type (pp, objfile); |
d07734e3 FF |
3264 | |
3265 | /* The second number is the number of bytes occupied by this type */ | |
ea753d03 JK |
3266 | nbytes = read_huge_number (pp, ';', &nbits); |
3267 | if (nbits != 0) | |
2dd30c72 | 3268 | return error_type (pp, objfile); |
d07734e3 | 3269 | |
ea753d03 | 3270 | if (details == NF_COMPLEX || details == NF_COMPLEX16 |
f52bde21 JK |
3271 | || details == NF_COMPLEX32) |
3272 | /* This is a type we can't handle, but we do know the size. | |
3273 | We also will be able to give it a name. */ | |
3274 | return init_type (TYPE_CODE_ERROR, nbytes, 0, NULL, objfile); | |
d07734e3 | 3275 | |
f52bde21 | 3276 | return init_type (TYPE_CODE_FLT, nbytes, 0, NULL, objfile); |
d07734e3 FF |
3277 | } |
3278 | ||
3279 | /* Read a number from the string pointed to by *PP. | |
3280 | The value of *PP is advanced over the number. | |
3281 | If END is nonzero, the character that ends the | |
3282 | number must match END, or an error happens; | |
3283 | and that character is skipped if it does match. | |
3284 | If END is zero, *PP is left pointing to that character. | |
3285 | ||
ea753d03 JK |
3286 | If the number fits in a long, set *BITS to 0 and return the value. |
3287 | If not, set *BITS to be the number of bits in the number and return 0. | |
d07734e3 | 3288 | |
ea753d03 | 3289 | If encounter garbage, set *BITS to -1 and return 0. */ |
d07734e3 | 3290 | |
ea753d03 JK |
3291 | static long |
3292 | read_huge_number (pp, end, bits) | |
d07734e3 FF |
3293 | char **pp; |
3294 | int end; | |
d07734e3 FF |
3295 | int *bits; |
3296 | { | |
3297 | char *p = *pp; | |
3298 | int sign = 1; | |
3299 | long n = 0; | |
3300 | int radix = 10; | |
3301 | char overflow = 0; | |
3302 | int nbits = 0; | |
3303 | int c; | |
3304 | long upper_limit; | |
3305 | ||
3306 | if (*p == '-') | |
3307 | { | |
3308 | sign = -1; | |
3309 | p++; | |
3310 | } | |
3311 | ||
3312 | /* Leading zero means octal. GCC uses this to output values larger | |
3313 | than an int (because that would be hard in decimal). */ | |
3314 | if (*p == '0') | |
3315 | { | |
3316 | radix = 8; | |
3317 | p++; | |
3318 | } | |
3319 | ||
8dbe58d8 KH |
3320 | if (os9k_stabs) |
3321 | upper_limit = ULONG_MAX / radix; | |
3322 | else | |
3323 | upper_limit = LONG_MAX / radix; | |
3324 | ||
574a2a49 | 3325 | while ((c = *p++) >= '0' && c < ('0' + radix)) |
d07734e3 FF |
3326 | { |
3327 | if (n <= upper_limit) | |
3328 | { | |
3329 | n *= radix; | |
3330 | n += c - '0'; /* FIXME this overflows anyway */ | |
3331 | } | |
3332 | else | |
3333 | overflow = 1; | |
3334 | ||
3335 | /* This depends on large values being output in octal, which is | |
3336 | what GCC does. */ | |
3337 | if (radix == 8) | |
3338 | { | |
3339 | if (nbits == 0) | |
3340 | { | |
3341 | if (c == '0') | |
3342 | /* Ignore leading zeroes. */ | |
3343 | ; | |
3344 | else if (c == '1') | |
3345 | nbits = 1; | |
3346 | else if (c == '2' || c == '3') | |
3347 | nbits = 2; | |
3348 | else | |
3349 | nbits = 3; | |
3350 | } | |
3351 | else | |
3352 | nbits += 3; | |
3353 | } | |
3354 | } | |
3355 | if (end) | |
3356 | { | |
3357 | if (c && c != end) | |
3358 | { | |
3359 | if (bits != NULL) | |
3360 | *bits = -1; | |
996ccb30 | 3361 | return 0; |
d07734e3 FF |
3362 | } |
3363 | } | |
3364 | else | |
3365 | --p; | |
3366 | ||
3367 | *pp = p; | |
3368 | if (overflow) | |
3369 | { | |
3370 | if (nbits == 0) | |
3371 | { | |
3372 | /* Large decimal constants are an error (because it is hard to | |
3373 | count how many bits are in them). */ | |
3374 | if (bits != NULL) | |
3375 | *bits = -1; | |
996ccb30 | 3376 | return 0; |
d07734e3 FF |
3377 | } |
3378 | ||
3379 | /* -0x7f is the same as 0x80. So deal with it by adding one to | |
3380 | the number of bits. */ | |
3381 | if (sign == -1) | |
3382 | ++nbits; | |
3383 | if (bits) | |
3384 | *bits = nbits; | |
3385 | } | |
3386 | else | |
3387 | { | |
d07734e3 FF |
3388 | if (bits) |
3389 | *bits = 0; | |
ea753d03 | 3390 | return n * sign; |
d07734e3 | 3391 | } |
ea753d03 JK |
3392 | /* It's *BITS which has the interesting information. */ |
3393 | return 0; | |
d07734e3 FF |
3394 | } |
3395 | ||
3396 | static struct type * | |
3397 | read_range_type (pp, typenums, objfile) | |
3398 | char **pp; | |
3399 | int typenums[2]; | |
3400 | struct objfile *objfile; | |
3401 | { | |
e55a5796 | 3402 | char *orig_pp = *pp; |
d07734e3 FF |
3403 | int rangenums[2]; |
3404 | long n2, n3; | |
3405 | int n2bits, n3bits; | |
3406 | int self_subrange; | |
3407 | struct type *result_type; | |
e55a5796 | 3408 | struct type *index_type = NULL; |
d07734e3 FF |
3409 | |
3410 | /* First comes a type we are a subrange of. | |
3411 | In C it is usually 0, 1 or the type being defined. */ | |
ea753d03 | 3412 | if (read_type_number (pp, rangenums) != 0) |
2dd30c72 | 3413 | return error_type (pp, objfile); |
d07734e3 FF |
3414 | self_subrange = (rangenums[0] == typenums[0] && |
3415 | rangenums[1] == typenums[1]); | |
3416 | ||
e55a5796 PB |
3417 | if (**pp == '=') |
3418 | { | |
3419 | *pp = orig_pp; | |
3420 | index_type = read_type (pp, objfile); | |
3421 | } | |
3422 | ||
d07734e3 FF |
3423 | /* A semicolon should now follow; skip it. */ |
3424 | if (**pp == ';') | |
3425 | (*pp)++; | |
3426 | ||
3427 | /* The remaining two operands are usually lower and upper bounds | |
3428 | of the range. But in some special cases they mean something else. */ | |
ea753d03 JK |
3429 | n2 = read_huge_number (pp, ';', &n2bits); |
3430 | n3 = read_huge_number (pp, ';', &n3bits); | |
d07734e3 FF |
3431 | |
3432 | if (n2bits == -1 || n3bits == -1) | |
2dd30c72 | 3433 | return error_type (pp, objfile); |
e55a5796 PB |
3434 | |
3435 | if (index_type) | |
3436 | goto handle_true_range; | |
3437 | ||
d07734e3 FF |
3438 | /* If limits are huge, must be large integral type. */ |
3439 | if (n2bits != 0 || n3bits != 0) | |
3440 | { | |
3441 | char got_signed = 0; | |
3442 | char got_unsigned = 0; | |
3443 | /* Number of bits in the type. */ | |
46c28185 | 3444 | int nbits = 0; |
d07734e3 FF |
3445 | |
3446 | /* Range from 0 to <large number> is an unsigned large integral type. */ | |
3447 | if ((n2bits == 0 && n2 == 0) && n3bits != 0) | |
3448 | { | |
3449 | got_unsigned = 1; | |
3450 | nbits = n3bits; | |
3451 | } | |
3452 | /* Range from <large number> to <large number>-1 is a large signed | |
cef4c2e7 PS |
3453 | integral type. Take care of the case where <large number> doesn't |
3454 | fit in a long but <large number>-1 does. */ | |
3455 | else if ((n2bits != 0 && n3bits != 0 && n2bits == n3bits + 1) | |
3456 | || (n2bits != 0 && n3bits == 0 | |
3457 | && (n2bits == sizeof (long) * HOST_CHAR_BIT) | |
3458 | && n3 == LONG_MAX)) | |
d07734e3 FF |
3459 | { |
3460 | got_signed = 1; | |
3461 | nbits = n2bits; | |
3462 | } | |
3463 | ||
d07734e3 FF |
3464 | if (got_signed || got_unsigned) |
3465 | { | |
f52bde21 JK |
3466 | return init_type (TYPE_CODE_INT, nbits / TARGET_CHAR_BIT, |
3467 | got_unsigned ? TYPE_FLAG_UNSIGNED : 0, NULL, | |
3468 | objfile); | |
d07734e3 FF |
3469 | } |
3470 | else | |
2dd30c72 | 3471 | return error_type (pp, objfile); |
d07734e3 FF |
3472 | } |
3473 | ||
3474 | /* A type defined as a subrange of itself, with bounds both 0, is void. */ | |
3475 | if (self_subrange && n2 == 0 && n3 == 0) | |
2f3b7d8e | 3476 | return init_type (TYPE_CODE_VOID, 1, 0, NULL, objfile); |
d07734e3 | 3477 | |
5e548861 | 3478 | /* If n3 is zero and n2 is positive, we want a floating type, |
d07734e3 FF |
3479 | and n2 is the width in bytes. |
3480 | ||
3481 | Fortran programs appear to use this for complex types also, | |
3482 | and they give no way to distinguish between double and single-complex! | |
f52bde21 JK |
3483 | |
3484 | GDB does not have complex types. | |
3485 | ||
3486 | Just return the complex as a float of that size. It won't work right | |
ebccb10b | 3487 | for the complex values, but at least it makes the file loadable. */ |
d07734e3 FF |
3488 | |
3489 | if (n3 == 0 && n2 > 0) | |
3490 | { | |
f52bde21 | 3491 | return init_type (TYPE_CODE_FLT, n2, 0, NULL, objfile); |
d07734e3 FF |
3492 | } |
3493 | ||
3494 | /* If the upper bound is -1, it must really be an unsigned int. */ | |
3495 | ||
3496 | else if (n2 == 0 && n3 == -1) | |
3497 | { | |
f52bde21 | 3498 | /* It is unsigned int or unsigned long. */ |
78934ba8 JK |
3499 | /* GCC 2.3.3 uses this for long long too, but that is just a GDB 3.5 |
3500 | compatibility hack. */ | |
f52bde21 JK |
3501 | return init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, |
3502 | TYPE_FLAG_UNSIGNED, NULL, objfile); | |
d07734e3 FF |
3503 | } |
3504 | ||
3505 | /* Special case: char is defined (Who knows why) as a subrange of | |
3506 | itself with range 0-127. */ | |
3507 | else if (self_subrange && n2 == 0 && n3 == 127) | |
f52bde21 JK |
3508 | return init_type (TYPE_CODE_INT, 1, 0, NULL, objfile); |
3509 | ||
5e548861 PB |
3510 | else if (current_symbol && SYMBOL_LANGUAGE (current_symbol) == language_chill |
3511 | && SYMBOL_LINE (current_symbol) > 0) | |
3512 | goto handle_true_range; | |
3513 | ||
f52bde21 JK |
3514 | /* We used to do this only for subrange of self or subrange of int. */ |
3515 | else if (n2 == 0) | |
3516 | { | |
3517 | if (n3 < 0) | |
3518 | /* n3 actually gives the size. */ | |
3519 | return init_type (TYPE_CODE_INT, - n3, TYPE_FLAG_UNSIGNED, | |
3520 | NULL, objfile); | |
3521 | if (n3 == 0xff) | |
3522 | return init_type (TYPE_CODE_INT, 1, TYPE_FLAG_UNSIGNED, NULL, objfile); | |
3523 | if (n3 == 0xffff) | |
3524 | return init_type (TYPE_CODE_INT, 2, TYPE_FLAG_UNSIGNED, NULL, objfile); | |
3525 | ||
3526 | /* -1 is used for the upper bound of (4 byte) "unsigned int" and | |
3527 | "unsigned long", and we already checked for that, | |
3528 | so don't need to test for it here. */ | |
3529 | } | |
3530 | /* I think this is for Convex "long long". Since I don't know whether | |
3531 | Convex sets self_subrange, I also accept that particular size regardless | |
3532 | of self_subrange. */ | |
3533 | else if (n3 == 0 && n2 < 0 | |
3534 | && (self_subrange | |
3535 | || n2 == - TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT)) | |
3536 | return init_type (TYPE_CODE_INT, - n2, 0, NULL, objfile); | |
d07734e3 FF |
3537 | else if (n2 == -n3 -1) |
3538 | { | |
f52bde21 JK |
3539 | if (n3 == 0x7f) |
3540 | return init_type (TYPE_CODE_INT, 1, 0, NULL, objfile); | |
3541 | if (n3 == 0x7fff) | |
3542 | return init_type (TYPE_CODE_INT, 2, 0, NULL, objfile); | |
3543 | if (n3 == 0x7fffffff) | |
3544 | return init_type (TYPE_CODE_INT, 4, 0, NULL, objfile); | |
d07734e3 FF |
3545 | } |
3546 | ||
3547 | /* We have a real range type on our hands. Allocate space and | |
3548 | return a real pointer. */ | |
e55a5796 | 3549 | handle_true_range: |
d07734e3 FF |
3550 | |
3551 | /* At this point I don't have the faintest idea how to deal with | |
3552 | a self_subrange type; I'm going to assume that this is used | |
3553 | as an idiom, and that all of them are special cases. So . . . */ | |
3554 | if (self_subrange) | |
2dd30c72 | 3555 | return error_type (pp, objfile); |
d07734e3 | 3556 | |
a8a69e63 FF |
3557 | index_type = *dbx_lookup_type (rangenums); |
3558 | if (index_type == NULL) | |
3559 | { | |
f52bde21 JK |
3560 | /* Does this actually ever happen? Is that why we are worrying |
3561 | about dealing with it rather than just calling error_type? */ | |
3562 | ||
3563 | static struct type *range_type_index; | |
3564 | ||
a8a69e63 | 3565 | complain (&range_type_base_complaint, rangenums[1]); |
f52bde21 JK |
3566 | if (range_type_index == NULL) |
3567 | range_type_index = | |
3568 | init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, | |
3569 | 0, "range type index type", NULL); | |
3570 | index_type = range_type_index; | |
a8a69e63 | 3571 | } |
d07734e3 | 3572 | |
a8a69e63 FF |
3573 | result_type = create_range_type ((struct type *) NULL, index_type, n2, n3); |
3574 | return (result_type); | |
d07734e3 FF |
3575 | } |
3576 | ||
d07734e3 FF |
3577 | /* Read in an argument list. This is a list of types, separated by commas |
3578 | and terminated with END. Return the list of types read in, or (struct type | |
3579 | **)-1 if there is an error. */ | |
3580 | ||
3581 | static struct type ** | |
3582 | read_args (pp, end, objfile) | |
3583 | char **pp; | |
3584 | int end; | |
3585 | struct objfile *objfile; | |
3586 | { | |
3587 | /* FIXME! Remove this arbitrary limit! */ | |
3588 | struct type *types[1024], **rval; /* allow for fns of 1023 parameters */ | |
3589 | int n = 0; | |
3590 | ||
3591 | while (**pp != end) | |
3592 | { | |
3593 | if (**pp != ',') | |
3594 | /* Invalid argument list: no ','. */ | |
3595 | return (struct type **)-1; | |
e7177cc2 | 3596 | (*pp)++; |
2dd30c72 | 3597 | STABS_CONTINUE (pp, objfile); |
d07734e3 FF |
3598 | types[n++] = read_type (pp, objfile); |
3599 | } | |
e7177cc2 | 3600 | (*pp)++; /* get past `end' (the ':' character) */ |
d07734e3 FF |
3601 | |
3602 | if (n == 1) | |
3603 | { | |
3604 | rval = (struct type **) xmalloc (2 * sizeof (struct type *)); | |
3605 | } | |
3606 | else if (TYPE_CODE (types[n-1]) != TYPE_CODE_VOID) | |
3607 | { | |
3608 | rval = (struct type **) xmalloc ((n + 1) * sizeof (struct type *)); | |
3609 | memset (rval + n, 0, sizeof (struct type *)); | |
3610 | } | |
3611 | else | |
3612 | { | |
3613 | rval = (struct type **) xmalloc (n * sizeof (struct type *)); | |
3614 | } | |
3615 | memcpy (rval, types, n * sizeof (struct type *)); | |
3616 | return rval; | |
3617 | } | |
9438d642 JK |
3618 | \f |
3619 | /* Common block handling. */ | |
3620 | ||
3621 | /* List of symbols declared since the last BCOMM. This list is a tail | |
3622 | of local_symbols. When ECOMM is seen, the symbols on the list | |
3623 | are noted so their proper addresses can be filled in later, | |
3624 | using the common block base address gotten from the assembler | |
3625 | stabs. */ | |
3626 | ||
3627 | static struct pending *common_block; | |
3628 | static int common_block_i; | |
3629 | ||
3630 | /* Name of the current common block. We get it from the BCOMM instead of the | |
3631 | ECOMM to match IBM documentation (even though IBM puts the name both places | |
3632 | like everyone else). */ | |
3633 | static char *common_block_name; | |
3634 | ||
3635 | /* Process a N_BCOMM symbol. The storage for NAME is not guaranteed | |
3636 | to remain after this function returns. */ | |
3637 | ||
3638 | void | |
3639 | common_block_start (name, objfile) | |
3640 | char *name; | |
3641 | struct objfile *objfile; | |
3642 | { | |
3643 | if (common_block_name != NULL) | |
3644 | { | |
3645 | static struct complaint msg = { | |
3646 | "Invalid symbol data: common block within common block", | |
3647 | 0, 0}; | |
3648 | complain (&msg); | |
3649 | } | |
3650 | common_block = local_symbols; | |
3651 | common_block_i = local_symbols ? local_symbols->nsyms : 0; | |
3652 | common_block_name = obsavestring (name, strlen (name), | |
3653 | &objfile -> symbol_obstack); | |
3654 | } | |
3655 | ||
3656 | /* Process a N_ECOMM symbol. */ | |
3657 | ||
3658 | void | |
3659 | common_block_end (objfile) | |
3660 | struct objfile *objfile; | |
3661 | { | |
3662 | /* Symbols declared since the BCOMM are to have the common block | |
3663 | start address added in when we know it. common_block and | |
3664 | common_block_i point to the first symbol after the BCOMM in | |
3665 | the local_symbols list; copy the list and hang it off the | |
3666 | symbol for the common block name for later fixup. */ | |
3667 | int i; | |
3668 | struct symbol *sym; | |
3669 | struct pending *new = 0; | |
3670 | struct pending *next; | |
3671 | int j; | |
3672 | ||
3673 | if (common_block_name == NULL) | |
3674 | { | |
3675 | static struct complaint msg = {"ECOMM symbol unmatched by BCOMM", 0, 0}; | |
3676 | complain (&msg); | |
3677 | return; | |
3678 | } | |
3679 | ||
3680 | sym = (struct symbol *) | |
3681 | obstack_alloc (&objfile -> symbol_obstack, sizeof (struct symbol)); | |
3682 | memset (sym, 0, sizeof (struct symbol)); | |
3683 | SYMBOL_NAME (sym) = common_block_name; | |
3684 | SYMBOL_CLASS (sym) = LOC_BLOCK; | |
3685 | ||
3686 | /* Now we copy all the symbols which have been defined since the BCOMM. */ | |
3687 | ||
3688 | /* Copy all the struct pendings before common_block. */ | |
3689 | for (next = local_symbols; | |
3690 | next != NULL && next != common_block; | |
3691 | next = next->next) | |
3692 | { | |
3693 | for (j = 0; j < next->nsyms; j++) | |
3694 | add_symbol_to_list (next->symbol[j], &new); | |
3695 | } | |
3696 | ||
3697 | /* Copy however much of COMMON_BLOCK we need. If COMMON_BLOCK is | |
3698 | NULL, it means copy all the local symbols (which we already did | |
3699 | above). */ | |
3700 | ||
3701 | if (common_block != NULL) | |
3702 | for (j = common_block_i; j < common_block->nsyms; j++) | |
3703 | add_symbol_to_list (common_block->symbol[j], &new); | |
3704 | ||
fddb9bda | 3705 | SYMBOL_TYPE (sym) = (struct type *) new; |
9438d642 JK |
3706 | |
3707 | /* Should we be putting local_symbols back to what it was? | |
3708 | Does it matter? */ | |
3709 | ||
3710 | i = hashname (SYMBOL_NAME (sym)); | |
3711 | SYMBOL_VALUE_CHAIN (sym) = global_sym_chain[i]; | |
3712 | global_sym_chain[i] = sym; | |
3713 | common_block_name = NULL; | |
3714 | } | |
d07734e3 FF |
3715 | |
3716 | /* Add a common block's start address to the offset of each symbol | |
3717 | declared to be in it (by being between a BCOMM/ECOMM pair that uses | |
3718 | the common block name). */ | |
3719 | ||
3720 | static void | |
3721 | fix_common_block (sym, valu) | |
3722 | struct symbol *sym; | |
3723 | int valu; | |
3724 | { | |
fddb9bda | 3725 | struct pending *next = (struct pending *) SYMBOL_TYPE (sym); |
d07734e3 FF |
3726 | for ( ; next; next = next->next) |
3727 | { | |
3728 | register int j; | |
3729 | for (j = next->nsyms - 1; j >= 0; j--) | |
3730 | SYMBOL_VALUE_ADDRESS (next->symbol[j]) += valu; | |
3731 | } | |
3732 | } | |
3733 | ||
3734 | ||
3735 | \f | |
3736 | /* What about types defined as forward references inside of a small lexical | |
3737 | scope? */ | |
3738 | /* Add a type to the list of undefined types to be checked through | |
3739 | once this file has been read in. */ | |
3740 | ||
3741 | void | |
3742 | add_undefined_type (type) | |
3743 | struct type *type; | |
3744 | { | |
3745 | if (undef_types_length == undef_types_allocated) | |
3746 | { | |
3747 | undef_types_allocated *= 2; | |
3748 | undef_types = (struct type **) | |
3749 | xrealloc ((char *) undef_types, | |
3750 | undef_types_allocated * sizeof (struct type *)); | |
3751 | } | |
3752 | undef_types[undef_types_length++] = type; | |
3753 | } | |
3754 | ||
3755 | /* Go through each undefined type, see if it's still undefined, and fix it | |
3756 | up if possible. We have two kinds of undefined types: | |
3757 | ||
3758 | TYPE_CODE_ARRAY: Array whose target type wasn't defined yet. | |
3759 | Fix: update array length using the element bounds | |
3760 | and the target type's length. | |
3761 | TYPE_CODE_STRUCT, TYPE_CODE_UNION: Structure whose fields were not | |
3762 | yet defined at the time a pointer to it was made. | |
3763 | Fix: Do a full lookup on the struct/union tag. */ | |
3764 | void | |
3765 | cleanup_undefined_types () | |
3766 | { | |
3767 | struct type **type; | |
3768 | ||
3769 | for (type = undef_types; type < undef_types + undef_types_length; type++) | |
3770 | { | |
3771 | switch (TYPE_CODE (*type)) | |
3772 | { | |
3773 | ||
3774 | case TYPE_CODE_STRUCT: | |
3775 | case TYPE_CODE_UNION: | |
3776 | case TYPE_CODE_ENUM: | |
3777 | { | |
dda398c3 | 3778 | /* Check if it has been defined since. Need to do this here |
5e548861 | 3779 | as well as in check_typedef to deal with the (legitimate in |
dda398c3 JK |
3780 | C though not C++) case of several types with the same name |
3781 | in different source files. */ | |
d07734e3 FF |
3782 | if (TYPE_FLAGS (*type) & TYPE_FLAG_STUB) |
3783 | { | |
3784 | struct pending *ppt; | |
3785 | int i; | |
3786 | /* Name of the type, without "struct" or "union" */ | |
b2bebdb0 | 3787 | char *typename = TYPE_TAG_NAME (*type); |
d07734e3 | 3788 | |
ea753d03 JK |
3789 | if (typename == NULL) |
3790 | { | |
3791 | static struct complaint msg = {"need a type name", 0, 0}; | |
3792 | complain (&msg); | |
3793 | break; | |
3794 | } | |
d07734e3 FF |
3795 | for (ppt = file_symbols; ppt; ppt = ppt->next) |
3796 | { | |
3797 | for (i = 0; i < ppt->nsyms; i++) | |
3798 | { | |
3799 | struct symbol *sym = ppt->symbol[i]; | |
3800 | ||
3801 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF | |
3802 | && SYMBOL_NAMESPACE (sym) == STRUCT_NAMESPACE | |
3803 | && (TYPE_CODE (SYMBOL_TYPE (sym)) == | |
3804 | TYPE_CODE (*type)) | |
2e4964ad | 3805 | && STREQ (SYMBOL_NAME (sym), typename)) |
d07734e3 FF |
3806 | { |
3807 | memcpy (*type, SYMBOL_TYPE (sym), | |
3808 | sizeof (struct type)); | |
3809 | } | |
3810 | } | |
3811 | } | |
3812 | } | |
3813 | } | |
3814 | break; | |
3815 | ||
ea753d03 JK |
3816 | default: |
3817 | badtype: | |
3818 | { | |
3819 | static struct complaint msg = {"\ | |
3820 | GDB internal error. cleanup_undefined_types with bad type %d.", 0, 0}; | |
3821 | complain (&msg, TYPE_CODE (*type)); | |
3822 | } | |
d07734e3 FF |
3823 | break; |
3824 | } | |
3825 | } | |
dda398c3 | 3826 | |
d07734e3 FF |
3827 | undef_types_length = 0; |
3828 | } | |
3829 | ||
3830 | /* Scan through all of the global symbols defined in the object file, | |
3831 | assigning values to the debugging symbols that need to be assigned | |
b1027aa4 | 3832 | to. Get these symbols from the minimal symbol table. */ |
d07734e3 | 3833 | |
b1027aa4 PS |
3834 | void |
3835 | scan_file_globals (objfile) | |
d07734e3 FF |
3836 | struct objfile *objfile; |
3837 | { | |
3838 | int hash; | |
3839 | struct minimal_symbol *msymbol; | |
3840 | struct symbol *sym, *prev; | |
3841 | ||
02b40a19 PS |
3842 | /* Avoid expensive loop through all minimal symbols if there are |
3843 | no unresolved symbols. */ | |
3844 | for (hash = 0; hash < HASHSIZE; hash++) | |
3845 | { | |
3846 | if (global_sym_chain[hash]) | |
3847 | break; | |
3848 | } | |
3849 | if (hash >= HASHSIZE) | |
b1027aa4 | 3850 | return; |
d07734e3 | 3851 | |
b1027aa4 PS |
3852 | for (msymbol = objfile -> msymbols; |
3853 | msymbol && SYMBOL_NAME (msymbol) != NULL; | |
3854 | msymbol++) | |
d07734e3 FF |
3855 | { |
3856 | QUIT; | |
3857 | ||
f3806e3b PS |
3858 | /* Skip static symbols. */ |
3859 | switch (MSYMBOL_TYPE (msymbol)) | |
3860 | { | |
3861 | case mst_file_text: | |
3862 | case mst_file_data: | |
3863 | case mst_file_bss: | |
3864 | continue; | |
9ed8604f PS |
3865 | default: |
3866 | break; | |
f3806e3b PS |
3867 | } |
3868 | ||
d07734e3 FF |
3869 | prev = NULL; |
3870 | ||
3871 | /* Get the hash index and check all the symbols | |
3872 | under that hash index. */ | |
3873 | ||
2e4964ad | 3874 | hash = hashname (SYMBOL_NAME (msymbol)); |
d07734e3 FF |
3875 | |
3876 | for (sym = global_sym_chain[hash]; sym;) | |
3877 | { | |
2e4964ad FF |
3878 | if (SYMBOL_NAME (msymbol)[0] == SYMBOL_NAME (sym)[0] && |
3879 | STREQ(SYMBOL_NAME (msymbol) + 1, SYMBOL_NAME (sym) + 1)) | |
d07734e3 FF |
3880 | { |
3881 | /* Splice this symbol out of the hash chain and | |
3882 | assign the value we have to it. */ | |
3883 | if (prev) | |
3884 | { | |
3885 | SYMBOL_VALUE_CHAIN (prev) = SYMBOL_VALUE_CHAIN (sym); | |
3886 | } | |
3887 | else | |
3888 | { | |
3889 | global_sym_chain[hash] = SYMBOL_VALUE_CHAIN (sym); | |
3890 | } | |
3891 | ||
3892 | /* Check to see whether we need to fix up a common block. */ | |
3893 | /* Note: this code might be executed several times for | |
3894 | the same symbol if there are multiple references. */ | |
3895 | ||
3896 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) | |
3897 | { | |
2e4964ad | 3898 | fix_common_block (sym, SYMBOL_VALUE_ADDRESS (msymbol)); |
d07734e3 FF |
3899 | } |
3900 | else | |
3901 | { | |
2e4964ad | 3902 | SYMBOL_VALUE_ADDRESS (sym) = SYMBOL_VALUE_ADDRESS (msymbol); |
d07734e3 | 3903 | } |
a66e8382 SG |
3904 | |
3905 | SYMBOL_SECTION (sym) = SYMBOL_SECTION (msymbol); | |
d07734e3 FF |
3906 | |
3907 | if (prev) | |
3908 | { | |
3909 | sym = SYMBOL_VALUE_CHAIN (prev); | |
3910 | } | |
3911 | else | |
3912 | { | |
3913 | sym = global_sym_chain[hash]; | |
3914 | } | |
3915 | } | |
3916 | else | |
3917 | { | |
3918 | prev = sym; | |
3919 | sym = SYMBOL_VALUE_CHAIN (sym); | |
3920 | } | |
3921 | } | |
3922 | } | |
02b40a19 | 3923 | |
b1027aa4 PS |
3924 | /* Change the storage class of any remaining unresolved globals to |
3925 | LOC_UNRESOLVED and remove them from the chain. */ | |
02b40a19 PS |
3926 | for (hash = 0; hash < HASHSIZE; hash++) |
3927 | { | |
3928 | sym = global_sym_chain[hash]; | |
3929 | while (sym) | |
3930 | { | |
b1027aa4 PS |
3931 | prev = sym; |
3932 | sym = SYMBOL_VALUE_CHAIN (sym); | |
02b40a19 PS |
3933 | |
3934 | /* Change the symbol address from the misleading chain value | |
3935 | to address zero. */ | |
02b40a19 | 3936 | SYMBOL_VALUE_ADDRESS (prev) = 0; |
b1027aa4 PS |
3937 | |
3938 | /* Complain about unresolved common block symbols. */ | |
3939 | if (SYMBOL_CLASS (prev) == LOC_STATIC) | |
3940 | SYMBOL_CLASS (prev) = LOC_UNRESOLVED; | |
3941 | else | |
3942 | complain (&unresolved_sym_chain_complaint, | |
3943 | objfile->name, SYMBOL_NAME (prev)); | |
02b40a19 PS |
3944 | } |
3945 | } | |
3946 | memset (global_sym_chain, 0, sizeof (global_sym_chain)); | |
d07734e3 FF |
3947 | } |
3948 | ||
3949 | /* Initialize anything that needs initializing when starting to read | |
3950 | a fresh piece of a symbol file, e.g. reading in the stuff corresponding | |
3951 | to a psymtab. */ | |
3952 | ||
3953 | void | |
3954 | stabsread_init () | |
3955 | { | |
3956 | } | |
3957 | ||
3958 | /* Initialize anything that needs initializing when a completely new | |
3959 | symbol file is specified (not just adding some symbols from another | |
3960 | file, e.g. a shared library). */ | |
3961 | ||
3962 | void | |
3963 | stabsread_new_init () | |
3964 | { | |
3965 | /* Empty the hash table of global syms looking for values. */ | |
3966 | memset (global_sym_chain, 0, sizeof (global_sym_chain)); | |
3967 | } | |
3968 | ||
3969 | /* Initialize anything that needs initializing at the same time as | |
3970 | start_symtab() is called. */ | |
3971 | ||
3972 | void start_stabs () | |
3973 | { | |
3974 | global_stabs = NULL; /* AIX COFF */ | |
3975 | /* Leave FILENUM of 0 free for builtin types and this file's types. */ | |
3976 | n_this_object_header_files = 1; | |
3977 | type_vector_length = 0; | |
3978 | type_vector = (struct type **) 0; | |
9438d642 JK |
3979 | |
3980 | /* FIXME: If common_block_name is not already NULL, we should complain(). */ | |
3981 | common_block_name = NULL; | |
25200748 JK |
3982 | |
3983 | os9k_stabs = 0; | |
d07734e3 FF |
3984 | } |
3985 | ||
3986 | /* Call after end_symtab() */ | |
3987 | ||
3988 | void end_stabs () | |
3989 | { | |
3990 | if (type_vector) | |
3991 | { | |
3992 | free ((char *) type_vector); | |
3993 | } | |
3994 | type_vector = 0; | |
3995 | type_vector_length = 0; | |
3996 | previous_stab_code = 0; | |
3997 | } | |
3998 | ||
3999 | void | |
4000 | finish_global_stabs (objfile) | |
d07734e3 FF |
4001 | struct objfile *objfile; |
4002 | { | |
4003 | if (global_stabs) | |
4004 | { | |
4005 | patch_block_stabs (global_symbols, global_stabs, objfile); | |
4006 | free ((PTR) global_stabs); | |
4007 | global_stabs = NULL; | |
4008 | } | |
4009 | } | |
4010 | ||
4011 | /* Initializer for this module */ | |
4012 | ||
4013 | void | |
4014 | _initialize_stabsread () | |
4015 | { | |
4016 | undef_types_allocated = 20; | |
4017 | undef_types_length = 0; | |
4018 | undef_types = (struct type **) | |
4019 | xmalloc (undef_types_allocated * sizeof (struct type *)); | |
4020 | } |