Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Support routines for decoding "stabs" debugging information format. |
cf5b2f1b | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
9b254dd1 DJ |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
5 | 2008 Free Software Foundation, Inc. | |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | /* Support routines for reading and decoding debugging information in | |
23 | the "stabs" format. This format is used with many systems that use | |
24 | the a.out object file format, as well as some systems that use | |
25 | COFF or ELF where the stabs data is placed in a special section. | |
26 | Avoid placing any object file format specific code in this file. */ | |
27 | ||
28 | #include "defs.h" | |
29 | #include "gdb_string.h" | |
30 | #include "bfd.h" | |
04ea0df1 | 31 | #include "gdb_obstack.h" |
c906108c SS |
32 | #include "symtab.h" |
33 | #include "gdbtypes.h" | |
34 | #include "expression.h" | |
35 | #include "symfile.h" | |
36 | #include "objfiles.h" | |
37 | #include "aout/stab_gnu.h" /* We always use GNU stabs, not native */ | |
38 | #include "libaout.h" | |
39 | #include "aout/aout64.h" | |
40 | #include "gdb-stabs.h" | |
41 | #include "buildsym.h" | |
42 | #include "complaints.h" | |
43 | #include "demangle.h" | |
44 | #include "language.h" | |
d16aafd8 | 45 | #include "doublest.h" |
de17c821 DJ |
46 | #include "cp-abi.h" |
47 | #include "cp-support.h" | |
8fb822e0 | 48 | #include "gdb_assert.h" |
c906108c SS |
49 | |
50 | #include <ctype.h> | |
51 | ||
52 | /* Ask stabsread.h to define the vars it normally declares `extern'. */ | |
c5aa993b JM |
53 | #define EXTERN |
54 | /**/ | |
c906108c SS |
55 | #include "stabsread.h" /* Our own declarations */ |
56 | #undef EXTERN | |
57 | ||
a14ed312 | 58 | extern void _initialize_stabsread (void); |
392a587b | 59 | |
c906108c SS |
60 | /* The routines that read and process a complete stabs for a C struct or |
61 | C++ class pass lists of data member fields and lists of member function | |
62 | fields in an instance of a field_info structure, as defined below. | |
63 | This is part of some reorganization of low level C++ support and is | |
64 | expected to eventually go away... (FIXME) */ | |
65 | ||
66 | struct field_info | |
c5aa993b JM |
67 | { |
68 | struct nextfield | |
69 | { | |
70 | struct nextfield *next; | |
c906108c | 71 | |
c5aa993b JM |
72 | /* This is the raw visibility from the stab. It is not checked |
73 | for being one of the visibilities we recognize, so code which | |
74 | examines this field better be able to deal. */ | |
75 | int visibility; | |
c906108c | 76 | |
c5aa993b JM |
77 | struct field field; |
78 | } | |
79 | *list; | |
80 | struct next_fnfieldlist | |
81 | { | |
82 | struct next_fnfieldlist *next; | |
83 | struct fn_fieldlist fn_fieldlist; | |
84 | } | |
85 | *fnlist; | |
86 | }; | |
c906108c SS |
87 | |
88 | static void | |
a14ed312 KB |
89 | read_one_struct_field (struct field_info *, char **, char *, |
90 | struct type *, struct objfile *); | |
c906108c | 91 | |
a14ed312 | 92 | static struct type *dbx_alloc_type (int[2], struct objfile *); |
c906108c | 93 | |
94e10a22 | 94 | static long read_huge_number (char **, int, int *, int); |
c906108c | 95 | |
a14ed312 | 96 | static struct type *error_type (char **, struct objfile *); |
c906108c SS |
97 | |
98 | static void | |
a14ed312 KB |
99 | patch_block_stabs (struct pending *, struct pending_stabs *, |
100 | struct objfile *); | |
c906108c | 101 | |
a14ed312 | 102 | static void fix_common_block (struct symbol *, int); |
c906108c | 103 | |
a14ed312 | 104 | static int read_type_number (char **, int *); |
c906108c | 105 | |
a7a48797 EZ |
106 | static struct type *read_type (char **, struct objfile *); |
107 | ||
94e10a22 | 108 | static struct type *read_range_type (char **, int[2], int, struct objfile *); |
c906108c | 109 | |
a14ed312 | 110 | static struct type *read_sun_builtin_type (char **, int[2], struct objfile *); |
c906108c | 111 | |
a14ed312 KB |
112 | static struct type *read_sun_floating_type (char **, int[2], |
113 | struct objfile *); | |
c906108c | 114 | |
a14ed312 | 115 | static struct type *read_enum_type (char **, struct type *, struct objfile *); |
c906108c | 116 | |
a14ed312 | 117 | static struct type *rs6000_builtin_type (int); |
c906108c SS |
118 | |
119 | static int | |
a14ed312 KB |
120 | read_member_functions (struct field_info *, char **, struct type *, |
121 | struct objfile *); | |
c906108c SS |
122 | |
123 | static int | |
a14ed312 KB |
124 | read_struct_fields (struct field_info *, char **, struct type *, |
125 | struct objfile *); | |
c906108c SS |
126 | |
127 | static int | |
a14ed312 KB |
128 | read_baseclasses (struct field_info *, char **, struct type *, |
129 | struct objfile *); | |
c906108c SS |
130 | |
131 | static int | |
a14ed312 KB |
132 | read_tilde_fields (struct field_info *, char **, struct type *, |
133 | struct objfile *); | |
c906108c | 134 | |
a14ed312 | 135 | static int attach_fn_fields_to_type (struct field_info *, struct type *); |
c906108c | 136 | |
570b8f7c AC |
137 | static int attach_fields_to_type (struct field_info *, struct type *, |
138 | struct objfile *); | |
c906108c | 139 | |
a14ed312 | 140 | static struct type *read_struct_type (char **, struct type *, |
2ae1c2d2 | 141 | enum type_code, |
a14ed312 | 142 | struct objfile *); |
c906108c | 143 | |
a14ed312 KB |
144 | static struct type *read_array_type (char **, struct type *, |
145 | struct objfile *); | |
c906108c | 146 | |
ad2f7632 | 147 | static struct field *read_args (char **, int, struct objfile *, int *, int *); |
c906108c | 148 | |
bf362611 | 149 | static void add_undefined_type (struct type *, int[2]); |
a7a48797 | 150 | |
c906108c | 151 | static int |
a14ed312 KB |
152 | read_cpp_abbrev (struct field_info *, char **, struct type *, |
153 | struct objfile *); | |
c906108c | 154 | |
7e1d63ec AF |
155 | static char *find_name_end (char *name); |
156 | ||
a14ed312 | 157 | static int process_reference (char **string); |
c906108c | 158 | |
a14ed312 | 159 | void stabsread_clear_cache (void); |
7be570e7 | 160 | |
8343f86c DJ |
161 | static const char vptr_name[] = "_vptr$"; |
162 | static const char vb_name[] = "_vb$"; | |
c906108c | 163 | |
23136709 KB |
164 | static void |
165 | invalid_cpp_abbrev_complaint (const char *arg1) | |
166 | { | |
e2e0b3e5 | 167 | complaint (&symfile_complaints, _("invalid C++ abbreviation `%s'"), arg1); |
23136709 | 168 | } |
c906108c | 169 | |
23136709 | 170 | static void |
49b0b195 | 171 | reg_value_complaint (int regnum, int num_regs, const char *sym) |
23136709 KB |
172 | { |
173 | complaint (&symfile_complaints, | |
e2e0b3e5 | 174 | _("register number %d too large (max %d) in symbol %s"), |
49b0b195 | 175 | regnum, num_regs - 1, sym); |
23136709 | 176 | } |
c906108c | 177 | |
23136709 KB |
178 | static void |
179 | stabs_general_complaint (const char *arg1) | |
180 | { | |
181 | complaint (&symfile_complaints, "%s", arg1); | |
182 | } | |
c906108c | 183 | |
c906108c SS |
184 | /* Make a list of forward references which haven't been defined. */ |
185 | ||
186 | static struct type **undef_types; | |
187 | static int undef_types_allocated; | |
188 | static int undef_types_length; | |
189 | static struct symbol *current_symbol = NULL; | |
190 | ||
bf362611 JB |
191 | /* Make a list of nameless types that are undefined. |
192 | This happens when another type is referenced by its number | |
193 | before this type is actually defined. For instance "t(0,1)=k(0,2)" | |
194 | and type (0,2) is defined only later. */ | |
195 | ||
196 | struct nat | |
197 | { | |
198 | int typenums[2]; | |
199 | struct type *type; | |
200 | }; | |
201 | static struct nat *noname_undefs; | |
202 | static int noname_undefs_allocated; | |
203 | static int noname_undefs_length; | |
204 | ||
c906108c SS |
205 | /* Check for and handle cretinous stabs symbol name continuation! */ |
206 | #define STABS_CONTINUE(pp,objfile) \ | |
207 | do { \ | |
208 | if (**(pp) == '\\' || (**(pp) == '?' && (*(pp))[1] == '\0')) \ | |
209 | *(pp) = next_symbol_text (objfile); \ | |
210 | } while (0) | |
211 | \f | |
c906108c SS |
212 | |
213 | /* Look up a dbx type-number pair. Return the address of the slot | |
214 | where the type for that number-pair is stored. | |
215 | The number-pair is in TYPENUMS. | |
216 | ||
217 | This can be used for finding the type associated with that pair | |
218 | or for associating a new type with the pair. */ | |
219 | ||
a7a48797 | 220 | static struct type ** |
35a2f538 | 221 | dbx_lookup_type (int typenums[2]) |
c906108c | 222 | { |
52f0bd74 AC |
223 | int filenum = typenums[0]; |
224 | int index = typenums[1]; | |
c906108c | 225 | unsigned old_len; |
52f0bd74 AC |
226 | int real_filenum; |
227 | struct header_file *f; | |
c906108c SS |
228 | int f_orig_length; |
229 | ||
230 | if (filenum == -1) /* -1,-1 is for temporary types. */ | |
231 | return 0; | |
232 | ||
233 | if (filenum < 0 || filenum >= n_this_object_header_files) | |
234 | { | |
23136709 | 235 | complaint (&symfile_complaints, |
e2e0b3e5 | 236 | _("Invalid symbol data: type number (%d,%d) out of range at symtab pos %d."), |
23136709 | 237 | filenum, index, symnum); |
c906108c SS |
238 | goto error_return; |
239 | } | |
240 | ||
241 | if (filenum == 0) | |
242 | { | |
243 | if (index < 0) | |
244 | { | |
245 | /* Caller wants address of address of type. We think | |
246 | that negative (rs6k builtin) types will never appear as | |
247 | "lvalues", (nor should they), so we stuff the real type | |
248 | pointer into a temp, and return its address. If referenced, | |
249 | this will do the right thing. */ | |
250 | static struct type *temp_type; | |
251 | ||
c5aa993b | 252 | temp_type = rs6000_builtin_type (index); |
c906108c SS |
253 | return &temp_type; |
254 | } | |
255 | ||
256 | /* Type is defined outside of header files. | |
c5aa993b | 257 | Find it in this object file's type vector. */ |
c906108c SS |
258 | if (index >= type_vector_length) |
259 | { | |
260 | old_len = type_vector_length; | |
261 | if (old_len == 0) | |
262 | { | |
263 | type_vector_length = INITIAL_TYPE_VECTOR_LENGTH; | |
264 | type_vector = (struct type **) | |
265 | xmalloc (type_vector_length * sizeof (struct type *)); | |
266 | } | |
267 | while (index >= type_vector_length) | |
268 | { | |
269 | type_vector_length *= 2; | |
270 | } | |
271 | type_vector = (struct type **) | |
272 | xrealloc ((char *) type_vector, | |
273 | (type_vector_length * sizeof (struct type *))); | |
274 | memset (&type_vector[old_len], 0, | |
275 | (type_vector_length - old_len) * sizeof (struct type *)); | |
c906108c SS |
276 | } |
277 | return (&type_vector[index]); | |
278 | } | |
279 | else | |
280 | { | |
281 | real_filenum = this_object_header_files[filenum]; | |
282 | ||
283 | if (real_filenum >= N_HEADER_FILES (current_objfile)) | |
284 | { | |
31e9f6b6 | 285 | static struct type **temp_type_p; |
c906108c | 286 | |
8a3fe4f8 | 287 | warning (_("GDB internal error: bad real_filenum")); |
c906108c SS |
288 | |
289 | error_return: | |
31e9f6b6 | 290 | temp_type_p = &builtin_type_error; |
c906108c SS |
291 | return temp_type_p; |
292 | } | |
293 | ||
294 | f = HEADER_FILES (current_objfile) + real_filenum; | |
295 | ||
296 | f_orig_length = f->length; | |
297 | if (index >= f_orig_length) | |
298 | { | |
299 | while (index >= f->length) | |
300 | { | |
301 | f->length *= 2; | |
302 | } | |
303 | f->vector = (struct type **) | |
304 | xrealloc ((char *) f->vector, f->length * sizeof (struct type *)); | |
305 | memset (&f->vector[f_orig_length], 0, | |
306 | (f->length - f_orig_length) * sizeof (struct type *)); | |
307 | } | |
308 | return (&f->vector[index]); | |
309 | } | |
310 | } | |
311 | ||
312 | /* Make sure there is a type allocated for type numbers TYPENUMS | |
313 | and return the type object. | |
314 | This can create an empty (zeroed) type object. | |
315 | TYPENUMS may be (-1, -1) to return a new type object that is not | |
316 | put into the type vector, and so may not be referred to by number. */ | |
317 | ||
318 | static struct type * | |
35a2f538 | 319 | dbx_alloc_type (int typenums[2], struct objfile *objfile) |
c906108c | 320 | { |
52f0bd74 | 321 | struct type **type_addr; |
c906108c SS |
322 | |
323 | if (typenums[0] == -1) | |
324 | { | |
325 | return (alloc_type (objfile)); | |
326 | } | |
327 | ||
328 | type_addr = dbx_lookup_type (typenums); | |
329 | ||
330 | /* If we are referring to a type not known at all yet, | |
331 | allocate an empty type for it. | |
332 | We will fill it in later if we find out how. */ | |
333 | if (*type_addr == 0) | |
334 | { | |
335 | *type_addr = alloc_type (objfile); | |
336 | } | |
337 | ||
338 | return (*type_addr); | |
339 | } | |
340 | ||
341 | /* for all the stabs in a given stab vector, build appropriate types | |
342 | and fix their symbols in given symbol vector. */ | |
343 | ||
344 | static void | |
fba45db2 KB |
345 | patch_block_stabs (struct pending *symbols, struct pending_stabs *stabs, |
346 | struct objfile *objfile) | |
c906108c SS |
347 | { |
348 | int ii; | |
349 | char *name; | |
350 | char *pp; | |
351 | struct symbol *sym; | |
352 | ||
353 | if (stabs) | |
354 | { | |
c5aa993b | 355 | |
c906108c | 356 | /* for all the stab entries, find their corresponding symbols and |
c5aa993b JM |
357 | patch their types! */ |
358 | ||
c906108c SS |
359 | for (ii = 0; ii < stabs->count; ++ii) |
360 | { | |
361 | name = stabs->stab[ii]; | |
c5aa993b | 362 | pp = (char *) strchr (name, ':'); |
8fb822e0 | 363 | gdb_assert (pp); /* Must find a ':' or game's over. */ |
c906108c SS |
364 | while (pp[1] == ':') |
365 | { | |
c5aa993b JM |
366 | pp += 2; |
367 | pp = (char *) strchr (pp, ':'); | |
c906108c | 368 | } |
c5aa993b | 369 | sym = find_symbol_in_list (symbols, name, pp - name); |
c906108c SS |
370 | if (!sym) |
371 | { | |
372 | /* FIXME-maybe: it would be nice if we noticed whether | |
c5aa993b JM |
373 | the variable was defined *anywhere*, not just whether |
374 | it is defined in this compilation unit. But neither | |
375 | xlc or GCC seem to need such a definition, and until | |
376 | we do psymtabs (so that the minimal symbols from all | |
377 | compilation units are available now), I'm not sure | |
378 | how to get the information. */ | |
c906108c SS |
379 | |
380 | /* On xcoff, if a global is defined and never referenced, | |
c5aa993b JM |
381 | ld will remove it from the executable. There is then |
382 | a N_GSYM stab for it, but no regular (C_EXT) symbol. */ | |
c906108c | 383 | sym = (struct symbol *) |
4a146b47 | 384 | obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
385 | sizeof (struct symbol)); |
386 | ||
387 | memset (sym, 0, sizeof (struct symbol)); | |
176620f1 | 388 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c | 389 | SYMBOL_CLASS (sym) = LOC_OPTIMIZED_OUT; |
3567439c DJ |
390 | SYMBOL_SET_LINKAGE_NAME |
391 | (sym, obsavestring (name, pp - name, | |
392 | &objfile->objfile_obstack)); | |
c906108c | 393 | pp += 2; |
c5aa993b | 394 | if (*(pp - 1) == 'F' || *(pp - 1) == 'f') |
c906108c SS |
395 | { |
396 | /* I don't think the linker does this with functions, | |
397 | so as far as I know this is never executed. | |
398 | But it doesn't hurt to check. */ | |
399 | SYMBOL_TYPE (sym) = | |
400 | lookup_function_type (read_type (&pp, objfile)); | |
401 | } | |
402 | else | |
403 | { | |
404 | SYMBOL_TYPE (sym) = read_type (&pp, objfile); | |
405 | } | |
406 | add_symbol_to_list (sym, &global_symbols); | |
407 | } | |
408 | else | |
409 | { | |
410 | pp += 2; | |
c5aa993b | 411 | if (*(pp - 1) == 'F' || *(pp - 1) == 'f') |
c906108c SS |
412 | { |
413 | SYMBOL_TYPE (sym) = | |
414 | lookup_function_type (read_type (&pp, objfile)); | |
415 | } | |
416 | else | |
417 | { | |
418 | SYMBOL_TYPE (sym) = read_type (&pp, objfile); | |
419 | } | |
420 | } | |
421 | } | |
422 | } | |
423 | } | |
c906108c | 424 | \f |
c5aa993b | 425 | |
c906108c SS |
426 | /* Read a number by which a type is referred to in dbx data, |
427 | or perhaps read a pair (FILENUM, TYPENUM) in parentheses. | |
428 | Just a single number N is equivalent to (0,N). | |
429 | Return the two numbers by storing them in the vector TYPENUMS. | |
430 | TYPENUMS will then be used as an argument to dbx_lookup_type. | |
431 | ||
432 | Returns 0 for success, -1 for error. */ | |
433 | ||
434 | static int | |
aa1ee363 | 435 | read_type_number (char **pp, int *typenums) |
c906108c SS |
436 | { |
437 | int nbits; | |
438 | if (**pp == '(') | |
439 | { | |
440 | (*pp)++; | |
94e10a22 | 441 | typenums[0] = read_huge_number (pp, ',', &nbits, 0); |
c5aa993b JM |
442 | if (nbits != 0) |
443 | return -1; | |
94e10a22 | 444 | typenums[1] = read_huge_number (pp, ')', &nbits, 0); |
c5aa993b JM |
445 | if (nbits != 0) |
446 | return -1; | |
c906108c SS |
447 | } |
448 | else | |
449 | { | |
450 | typenums[0] = 0; | |
94e10a22 | 451 | typenums[1] = read_huge_number (pp, 0, &nbits, 0); |
c5aa993b JM |
452 | if (nbits != 0) |
453 | return -1; | |
c906108c SS |
454 | } |
455 | return 0; | |
456 | } | |
c906108c | 457 | \f |
c5aa993b | 458 | |
c906108c SS |
459 | #define VISIBILITY_PRIVATE '0' /* Stabs character for private field */ |
460 | #define VISIBILITY_PROTECTED '1' /* Stabs character for protected fld */ | |
461 | #define VISIBILITY_PUBLIC '2' /* Stabs character for public field */ | |
462 | #define VISIBILITY_IGNORE '9' /* Optimized out or zero length */ | |
463 | ||
c906108c SS |
464 | /* Structure for storing pointers to reference definitions for fast lookup |
465 | during "process_later". */ | |
466 | ||
467 | struct ref_map | |
468 | { | |
469 | char *stabs; | |
470 | CORE_ADDR value; | |
471 | struct symbol *sym; | |
472 | }; | |
473 | ||
474 | #define MAX_CHUNK_REFS 100 | |
475 | #define REF_CHUNK_SIZE (MAX_CHUNK_REFS * sizeof (struct ref_map)) | |
476 | #define REF_MAP_SIZE(ref_chunk) ((ref_chunk) * REF_CHUNK_SIZE) | |
477 | ||
c5aa993b | 478 | static struct ref_map *ref_map; |
c906108c SS |
479 | |
480 | /* Ptr to free cell in chunk's linked list. */ | |
c5aa993b | 481 | static int ref_count = 0; |
c906108c SS |
482 | |
483 | /* Number of chunks malloced. */ | |
484 | static int ref_chunk = 0; | |
485 | ||
7be570e7 JM |
486 | /* This file maintains a cache of stabs aliases found in the symbol |
487 | table. If the symbol table changes, this cache must be cleared | |
488 | or we are left holding onto data in invalid obstacks. */ | |
489 | void | |
fba45db2 | 490 | stabsread_clear_cache (void) |
7be570e7 JM |
491 | { |
492 | ref_count = 0; | |
493 | ref_chunk = 0; | |
494 | } | |
495 | ||
c906108c SS |
496 | /* Create array of pointers mapping refids to symbols and stab strings. |
497 | Add pointers to reference definition symbols and/or their values as we | |
498 | find them, using their reference numbers as our index. | |
499 | These will be used later when we resolve references. */ | |
500 | void | |
fba45db2 | 501 | ref_add (int refnum, struct symbol *sym, char *stabs, CORE_ADDR value) |
c906108c SS |
502 | { |
503 | if (ref_count == 0) | |
504 | ref_chunk = 0; | |
505 | if (refnum >= ref_count) | |
506 | ref_count = refnum + 1; | |
507 | if (ref_count > ref_chunk * MAX_CHUNK_REFS) | |
508 | { | |
c5aa993b | 509 | int new_slots = ref_count - ref_chunk * MAX_CHUNK_REFS; |
c906108c SS |
510 | int new_chunks = new_slots / MAX_CHUNK_REFS + 1; |
511 | ref_map = (struct ref_map *) | |
512 | xrealloc (ref_map, REF_MAP_SIZE (ref_chunk + new_chunks)); | |
513 | memset (ref_map + ref_chunk * MAX_CHUNK_REFS, 0, new_chunks * REF_CHUNK_SIZE); | |
514 | ref_chunk += new_chunks; | |
515 | } | |
516 | ref_map[refnum].stabs = stabs; | |
517 | ref_map[refnum].sym = sym; | |
518 | ref_map[refnum].value = value; | |
519 | } | |
520 | ||
521 | /* Return defined sym for the reference REFNUM. */ | |
522 | struct symbol * | |
fba45db2 | 523 | ref_search (int refnum) |
c906108c SS |
524 | { |
525 | if (refnum < 0 || refnum > ref_count) | |
526 | return 0; | |
527 | return ref_map[refnum].sym; | |
528 | } | |
529 | ||
c906108c SS |
530 | /* Parse a reference id in STRING and return the resulting |
531 | reference number. Move STRING beyond the reference id. */ | |
532 | ||
c5aa993b | 533 | static int |
fba45db2 | 534 | process_reference (char **string) |
c906108c SS |
535 | { |
536 | char *p; | |
537 | int refnum = 0; | |
538 | ||
c5aa993b JM |
539 | if (**string != '#') |
540 | return 0; | |
541 | ||
c906108c SS |
542 | /* Advance beyond the initial '#'. */ |
543 | p = *string + 1; | |
544 | ||
545 | /* Read number as reference id. */ | |
546 | while (*p && isdigit (*p)) | |
547 | { | |
548 | refnum = refnum * 10 + *p - '0'; | |
549 | p++; | |
550 | } | |
551 | *string = p; | |
552 | return refnum; | |
553 | } | |
554 | ||
555 | /* If STRING defines a reference, store away a pointer to the reference | |
556 | definition for later use. Return the reference number. */ | |
557 | ||
558 | int | |
fba45db2 | 559 | symbol_reference_defined (char **string) |
c906108c SS |
560 | { |
561 | char *p = *string; | |
562 | int refnum = 0; | |
563 | ||
564 | refnum = process_reference (&p); | |
565 | ||
566 | /* Defining symbols end in '=' */ | |
c5aa993b | 567 | if (*p == '=') |
c906108c | 568 | { |
c5aa993b | 569 | /* Symbol is being defined here. */ |
c906108c SS |
570 | *string = p + 1; |
571 | return refnum; | |
572 | } | |
573 | else | |
574 | { | |
575 | /* Must be a reference. Either the symbol has already been defined, | |
576 | or this is a forward reference to it. */ | |
577 | *string = p; | |
578 | return -1; | |
579 | } | |
580 | } | |
581 | ||
c906108c | 582 | struct symbol * |
fba45db2 KB |
583 | define_symbol (CORE_ADDR valu, char *string, int desc, int type, |
584 | struct objfile *objfile) | |
c906108c | 585 | { |
5e2b427d | 586 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
52f0bd74 | 587 | struct symbol *sym; |
7e1d63ec | 588 | char *p = (char *) find_name_end (string); |
c906108c SS |
589 | int deftype; |
590 | int synonym = 0; | |
52f0bd74 | 591 | int i; |
c906108c SS |
592 | |
593 | /* We would like to eliminate nameless symbols, but keep their types. | |
594 | E.g. stab entry ":t10=*2" should produce a type 10, which is a pointer | |
595 | to type 2, but, should not create a symbol to address that type. Since | |
596 | the symbol will be nameless, there is no way any user can refer to it. */ | |
597 | ||
598 | int nameless; | |
599 | ||
600 | /* Ignore syms with empty names. */ | |
601 | if (string[0] == 0) | |
602 | return 0; | |
603 | ||
604 | /* Ignore old-style symbols from cc -go */ | |
605 | if (p == 0) | |
606 | return 0; | |
607 | ||
608 | while (p[1] == ':') | |
609 | { | |
c5aa993b JM |
610 | p += 2; |
611 | p = strchr (p, ':'); | |
c906108c SS |
612 | } |
613 | ||
614 | /* If a nameless stab entry, all we need is the type, not the symbol. | |
615 | e.g. ":t10=*2" or a nameless enum like " :T16=ered:0,green:1,blue:2,;" */ | |
616 | nameless = (p == string || ((string[0] == ' ') && (string[1] == ':'))); | |
617 | ||
c5aa993b | 618 | current_symbol = sym = (struct symbol *) |
4a146b47 | 619 | obstack_alloc (&objfile->objfile_obstack, sizeof (struct symbol)); |
c906108c SS |
620 | memset (sym, 0, sizeof (struct symbol)); |
621 | ||
622 | switch (type & N_TYPE) | |
623 | { | |
624 | case N_TEXT: | |
b8fbeb18 | 625 | SYMBOL_SECTION (sym) = SECT_OFF_TEXT (objfile); |
c906108c SS |
626 | break; |
627 | case N_DATA: | |
b8fbeb18 | 628 | SYMBOL_SECTION (sym) = SECT_OFF_DATA (objfile); |
c906108c SS |
629 | break; |
630 | case N_BSS: | |
b8fbeb18 | 631 | SYMBOL_SECTION (sym) = SECT_OFF_BSS (objfile); |
c906108c SS |
632 | break; |
633 | } | |
634 | ||
635 | if (processing_gcc_compilation) | |
636 | { | |
637 | /* GCC 2.x puts the line number in desc. SunOS apparently puts in the | |
c5aa993b JM |
638 | number of bytes occupied by a type or object, which we ignore. */ |
639 | SYMBOL_LINE (sym) = desc; | |
c906108c SS |
640 | } |
641 | else | |
642 | { | |
c5aa993b | 643 | SYMBOL_LINE (sym) = 0; /* unknown */ |
c906108c SS |
644 | } |
645 | ||
646 | if (is_cplus_marker (string[0])) | |
647 | { | |
648 | /* Special GNU C++ names. */ | |
649 | switch (string[1]) | |
650 | { | |
c5aa993b | 651 | case 't': |
3567439c DJ |
652 | SYMBOL_SET_LINKAGE_NAME |
653 | (sym, obsavestring ("this", strlen ("this"), | |
654 | &objfile->objfile_obstack)); | |
c5aa993b | 655 | break; |
c906108c | 656 | |
c5aa993b | 657 | case 'v': /* $vtbl_ptr_type */ |
c5aa993b | 658 | goto normal; |
c906108c | 659 | |
c5aa993b | 660 | case 'e': |
3567439c DJ |
661 | SYMBOL_SET_LINKAGE_NAME |
662 | (sym, obsavestring ("eh_throw", strlen ("eh_throw"), | |
663 | &objfile->objfile_obstack)); | |
c5aa993b | 664 | break; |
c906108c | 665 | |
c5aa993b JM |
666 | case '_': |
667 | /* This was an anonymous type that was never fixed up. */ | |
668 | goto normal; | |
c906108c | 669 | |
c5aa993b JM |
670 | case 'X': |
671 | /* SunPRO (3.0 at least) static variable encoding. */ | |
5e2b427d | 672 | if (gdbarch_static_transform_name_p (gdbarch)) |
149ad273 UW |
673 | goto normal; |
674 | /* ... fall through ... */ | |
c906108c | 675 | |
c5aa993b | 676 | default: |
e2e0b3e5 | 677 | complaint (&symfile_complaints, _("Unknown C++ symbol name `%s'"), |
23136709 | 678 | string); |
c5aa993b | 679 | goto normal; /* Do *something* with it */ |
c906108c SS |
680 | } |
681 | } | |
c906108c SS |
682 | else |
683 | { | |
684 | normal: | |
c5aa993b | 685 | SYMBOL_LANGUAGE (sym) = current_subfile->language; |
2de7ced7 | 686 | SYMBOL_SET_NAMES (sym, string, p - string, objfile); |
df8a16a1 DJ |
687 | if (SYMBOL_LANGUAGE (sym) == language_cplus) |
688 | cp_scan_for_anonymous_namespaces (sym); | |
c906108c SS |
689 | } |
690 | p++; | |
691 | ||
692 | /* Determine the type of name being defined. */ | |
693 | #if 0 | |
694 | /* Getting GDB to correctly skip the symbol on an undefined symbol | |
695 | descriptor and not ever dump core is a very dodgy proposition if | |
696 | we do things this way. I say the acorn RISC machine can just | |
697 | fix their compiler. */ | |
698 | /* The Acorn RISC machine's compiler can put out locals that don't | |
699 | start with "234=" or "(3,4)=", so assume anything other than the | |
700 | deftypes we know how to handle is a local. */ | |
701 | if (!strchr ("cfFGpPrStTvVXCR", *p)) | |
702 | #else | |
703 | if (isdigit (*p) || *p == '(' || *p == '-') | |
704 | #endif | |
705 | deftype = 'l'; | |
706 | else | |
707 | deftype = *p++; | |
708 | ||
709 | switch (deftype) | |
710 | { | |
711 | case 'c': | |
712 | /* c is a special case, not followed by a type-number. | |
c5aa993b JM |
713 | SYMBOL:c=iVALUE for an integer constant symbol. |
714 | SYMBOL:c=rVALUE for a floating constant symbol. | |
715 | SYMBOL:c=eTYPE,INTVALUE for an enum constant symbol. | |
716 | e.g. "b:c=e6,0" for "const b = blob1" | |
717 | (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */ | |
c906108c SS |
718 | if (*p != '=') |
719 | { | |
720 | SYMBOL_CLASS (sym) = LOC_CONST; | |
721 | SYMBOL_TYPE (sym) = error_type (&p, objfile); | |
176620f1 | 722 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
723 | add_symbol_to_list (sym, &file_symbols); |
724 | return sym; | |
725 | } | |
726 | ++p; | |
727 | switch (*p++) | |
728 | { | |
729 | case 'r': | |
730 | { | |
731 | double d = atof (p); | |
4e38b386 | 732 | gdb_byte *dbl_valu; |
6ccb9162 | 733 | struct type *dbl_type; |
c906108c SS |
734 | |
735 | /* FIXME-if-picky-about-floating-accuracy: Should be using | |
736 | target arithmetic to get the value. real.c in GCC | |
737 | probably has the necessary code. */ | |
738 | ||
5e2b427d | 739 | dbl_type = builtin_type (gdbarch)->builtin_double; |
4e38b386 | 740 | dbl_valu = |
4a146b47 | 741 | obstack_alloc (&objfile->objfile_obstack, |
6ccb9162 UW |
742 | TYPE_LENGTH (dbl_type)); |
743 | store_typed_floating (dbl_valu, dbl_type, d); | |
744 | ||
745 | SYMBOL_TYPE (sym) = dbl_type; | |
c906108c SS |
746 | SYMBOL_VALUE_BYTES (sym) = dbl_valu; |
747 | SYMBOL_CLASS (sym) = LOC_CONST_BYTES; | |
748 | } | |
749 | break; | |
750 | case 'i': | |
751 | { | |
752 | /* Defining integer constants this way is kind of silly, | |
753 | since 'e' constants allows the compiler to give not | |
754 | only the value, but the type as well. C has at least | |
755 | int, long, unsigned int, and long long as constant | |
756 | types; other languages probably should have at least | |
757 | unsigned as well as signed constants. */ | |
758 | ||
5e2b427d | 759 | SYMBOL_TYPE (sym) = builtin_type (gdbarch)->builtin_long; |
c906108c SS |
760 | SYMBOL_VALUE (sym) = atoi (p); |
761 | SYMBOL_CLASS (sym) = LOC_CONST; | |
762 | } | |
763 | break; | |
764 | case 'e': | |
765 | /* SYMBOL:c=eTYPE,INTVALUE for a constant symbol whose value | |
766 | can be represented as integral. | |
767 | e.g. "b:c=e6,0" for "const b = blob1" | |
768 | (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */ | |
769 | { | |
770 | SYMBOL_CLASS (sym) = LOC_CONST; | |
771 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
772 | ||
773 | if (*p != ',') | |
774 | { | |
775 | SYMBOL_TYPE (sym) = error_type (&p, objfile); | |
776 | break; | |
777 | } | |
778 | ++p; | |
779 | ||
780 | /* If the value is too big to fit in an int (perhaps because | |
781 | it is unsigned), or something like that, we silently get | |
782 | a bogus value. The type and everything else about it is | |
783 | correct. Ideally, we should be using whatever we have | |
784 | available for parsing unsigned and long long values, | |
785 | however. */ | |
786 | SYMBOL_VALUE (sym) = atoi (p); | |
787 | } | |
788 | break; | |
789 | default: | |
790 | { | |
791 | SYMBOL_CLASS (sym) = LOC_CONST; | |
792 | SYMBOL_TYPE (sym) = error_type (&p, objfile); | |
793 | } | |
794 | } | |
176620f1 | 795 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
796 | add_symbol_to_list (sym, &file_symbols); |
797 | return sym; | |
798 | ||
799 | case 'C': | |
800 | /* The name of a caught exception. */ | |
801 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
802 | SYMBOL_CLASS (sym) = LOC_LABEL; | |
176620f1 | 803 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
804 | SYMBOL_VALUE_ADDRESS (sym) = valu; |
805 | add_symbol_to_list (sym, &local_symbols); | |
806 | break; | |
807 | ||
808 | case 'f': | |
809 | /* A static function definition. */ | |
810 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
811 | SYMBOL_CLASS (sym) = LOC_BLOCK; | |
176620f1 | 812 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
813 | add_symbol_to_list (sym, &file_symbols); |
814 | /* fall into process_function_types. */ | |
815 | ||
816 | process_function_types: | |
817 | /* Function result types are described as the result type in stabs. | |
c5aa993b JM |
818 | We need to convert this to the function-returning-type-X type |
819 | in GDB. E.g. "int" is converted to "function returning int". */ | |
c906108c SS |
820 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_FUNC) |
821 | SYMBOL_TYPE (sym) = lookup_function_type (SYMBOL_TYPE (sym)); | |
822 | ||
1e698235 DJ |
823 | /* All functions in C++ have prototypes. Stabs does not offer an |
824 | explicit way to identify prototyped or unprototyped functions, | |
825 | but both GCC and Sun CC emit stabs for the "call-as" type rather | |
826 | than the "declared-as" type for unprototyped functions, so | |
827 | we treat all functions as if they were prototyped. This is used | |
828 | primarily for promotion when calling the function from GDB. */ | |
876cecd0 | 829 | TYPE_PROTOTYPED (SYMBOL_TYPE (sym)) = 1; |
c906108c SS |
830 | |
831 | /* fall into process_prototype_types */ | |
832 | ||
833 | process_prototype_types: | |
834 | /* Sun acc puts declared types of arguments here. */ | |
835 | if (*p == ';') | |
836 | { | |
837 | struct type *ftype = SYMBOL_TYPE (sym); | |
838 | int nsemi = 0; | |
839 | int nparams = 0; | |
840 | char *p1 = p; | |
841 | ||
842 | /* Obtain a worst case guess for the number of arguments | |
843 | by counting the semicolons. */ | |
844 | while (*p1) | |
845 | { | |
846 | if (*p1++ == ';') | |
847 | nsemi++; | |
848 | } | |
849 | ||
850 | /* Allocate parameter information fields and fill them in. */ | |
851 | TYPE_FIELDS (ftype) = (struct field *) | |
852 | TYPE_ALLOC (ftype, nsemi * sizeof (struct field)); | |
853 | while (*p++ == ';') | |
854 | { | |
855 | struct type *ptype; | |
856 | ||
857 | /* A type number of zero indicates the start of varargs. | |
c5aa993b | 858 | FIXME: GDB currently ignores vararg functions. */ |
c906108c SS |
859 | if (p[0] == '0' && p[1] == '\0') |
860 | break; | |
861 | ptype = read_type (&p, objfile); | |
862 | ||
863 | /* The Sun compilers mark integer arguments, which should | |
c5aa993b JM |
864 | be promoted to the width of the calling conventions, with |
865 | a type which references itself. This type is turned into | |
866 | a TYPE_CODE_VOID type by read_type, and we have to turn | |
5e2b427d UW |
867 | it back into builtin_int here. |
868 | FIXME: Do we need a new builtin_promoted_int_arg ? */ | |
c906108c | 869 | if (TYPE_CODE (ptype) == TYPE_CODE_VOID) |
5e2b427d | 870 | ptype = builtin_type (gdbarch)->builtin_int; |
8176bb6d DJ |
871 | TYPE_FIELD_TYPE (ftype, nparams) = ptype; |
872 | TYPE_FIELD_ARTIFICIAL (ftype, nparams++) = 0; | |
c906108c SS |
873 | } |
874 | TYPE_NFIELDS (ftype) = nparams; | |
876cecd0 | 875 | TYPE_PROTOTYPED (ftype) = 1; |
c906108c SS |
876 | } |
877 | break; | |
878 | ||
879 | case 'F': | |
880 | /* A global function definition. */ | |
881 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
882 | SYMBOL_CLASS (sym) = LOC_BLOCK; | |
176620f1 | 883 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
884 | add_symbol_to_list (sym, &global_symbols); |
885 | goto process_function_types; | |
886 | ||
887 | case 'G': | |
888 | /* For a class G (global) symbol, it appears that the | |
c5aa993b JM |
889 | value is not correct. It is necessary to search for the |
890 | corresponding linker definition to find the value. | |
891 | These definitions appear at the end of the namelist. */ | |
c906108c SS |
892 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
893 | SYMBOL_CLASS (sym) = LOC_STATIC; | |
176620f1 | 894 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c | 895 | /* Don't add symbol references to global_sym_chain. |
c5aa993b JM |
896 | Symbol references don't have valid names and wont't match up with |
897 | minimal symbols when the global_sym_chain is relocated. | |
898 | We'll fixup symbol references when we fixup the defining symbol. */ | |
3567439c | 899 | if (SYMBOL_LINKAGE_NAME (sym) && SYMBOL_LINKAGE_NAME (sym)[0] != '#') |
c906108c | 900 | { |
3567439c | 901 | i = hashname (SYMBOL_LINKAGE_NAME (sym)); |
c5aa993b JM |
902 | SYMBOL_VALUE_CHAIN (sym) = global_sym_chain[i]; |
903 | global_sym_chain[i] = sym; | |
c906108c SS |
904 | } |
905 | add_symbol_to_list (sym, &global_symbols); | |
906 | break; | |
907 | ||
908 | /* This case is faked by a conditional above, | |
c5aa993b JM |
909 | when there is no code letter in the dbx data. |
910 | Dbx data never actually contains 'l'. */ | |
c906108c SS |
911 | case 's': |
912 | case 'l': | |
913 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
914 | SYMBOL_CLASS (sym) = LOC_LOCAL; | |
915 | SYMBOL_VALUE (sym) = valu; | |
176620f1 | 916 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
917 | add_symbol_to_list (sym, &local_symbols); |
918 | break; | |
919 | ||
920 | case 'p': | |
921 | if (*p == 'F') | |
922 | /* pF is a two-letter code that means a function parameter in Fortran. | |
923 | The type-number specifies the type of the return value. | |
924 | Translate it into a pointer-to-function type. */ | |
925 | { | |
926 | p++; | |
927 | SYMBOL_TYPE (sym) | |
928 | = lookup_pointer_type | |
c5aa993b | 929 | (lookup_function_type (read_type (&p, objfile))); |
c906108c SS |
930 | } |
931 | else | |
932 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
933 | ||
7ca9f392 | 934 | SYMBOL_CLASS (sym) = LOC_ARG; |
c906108c | 935 | SYMBOL_VALUE (sym) = valu; |
176620f1 | 936 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
2a2d4dc3 | 937 | SYMBOL_IS_ARGUMENT (sym) = 1; |
c906108c SS |
938 | add_symbol_to_list (sym, &local_symbols); |
939 | ||
5e2b427d | 940 | if (gdbarch_byte_order (gdbarch) != BFD_ENDIAN_BIG) |
c906108c SS |
941 | { |
942 | /* On little-endian machines, this crud is never necessary, | |
943 | and, if the extra bytes contain garbage, is harmful. */ | |
944 | break; | |
945 | } | |
946 | ||
947 | /* If it's gcc-compiled, if it says `short', believe it. */ | |
f73e88f9 | 948 | if (processing_gcc_compilation |
5e2b427d | 949 | || gdbarch_believe_pcc_promotion (gdbarch)) |
c906108c SS |
950 | break; |
951 | ||
5e2b427d | 952 | if (!gdbarch_believe_pcc_promotion (gdbarch)) |
7a292a7a | 953 | { |
8ee56bcf AC |
954 | /* If PCC says a parameter is a short or a char, it is |
955 | really an int. */ | |
5e2b427d UW |
956 | if (TYPE_LENGTH (SYMBOL_TYPE (sym)) |
957 | < gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT | |
8ee56bcf | 958 | && TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_INT) |
7a292a7a | 959 | { |
8ee56bcf AC |
960 | SYMBOL_TYPE (sym) = |
961 | TYPE_UNSIGNED (SYMBOL_TYPE (sym)) | |
5e2b427d UW |
962 | ? builtin_type (gdbarch)->builtin_unsigned_int |
963 | : builtin_type (gdbarch)->builtin_int; | |
7a292a7a | 964 | } |
8ee56bcf | 965 | break; |
7a292a7a | 966 | } |
c906108c SS |
967 | |
968 | case 'P': | |
969 | /* acc seems to use P to declare the prototypes of functions that | |
970 | are referenced by this file. gdb is not prepared to deal | |
971 | with this extra information. FIXME, it ought to. */ | |
972 | if (type == N_FUN) | |
973 | { | |
974 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
975 | goto process_prototype_types; | |
976 | } | |
c5aa993b | 977 | /*FALLTHROUGH */ |
c906108c SS |
978 | |
979 | case 'R': | |
980 | /* Parameter which is in a register. */ | |
981 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
2a2d4dc3 AS |
982 | SYMBOL_CLASS (sym) = LOC_REGISTER; |
983 | SYMBOL_IS_ARGUMENT (sym) = 1; | |
055d23b8 | 984 | SYMBOL_VALUE (sym) = gdbarch_stab_reg_to_regnum (current_gdbarch, valu); |
f57d151a UW |
985 | if (SYMBOL_VALUE (sym) >= gdbarch_num_regs (current_gdbarch) |
986 | + gdbarch_num_pseudo_regs (current_gdbarch)) | |
c906108c | 987 | { |
23136709 | 988 | reg_value_complaint (SYMBOL_VALUE (sym), |
f57d151a UW |
989 | gdbarch_num_regs (current_gdbarch) |
990 | + gdbarch_num_pseudo_regs (current_gdbarch), | |
de5ad195 | 991 | SYMBOL_PRINT_NAME (sym)); |
3e8c568d UW |
992 | SYMBOL_VALUE (sym) = gdbarch_sp_regnum (current_gdbarch); |
993 | /* Known safe, though useless */ | |
c906108c | 994 | } |
176620f1 | 995 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
996 | add_symbol_to_list (sym, &local_symbols); |
997 | break; | |
998 | ||
999 | case 'r': | |
1000 | /* Register variable (either global or local). */ | |
1001 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
1002 | SYMBOL_CLASS (sym) = LOC_REGISTER; | |
055d23b8 | 1003 | SYMBOL_VALUE (sym) = gdbarch_stab_reg_to_regnum (current_gdbarch, valu); |
f57d151a UW |
1004 | if (SYMBOL_VALUE (sym) >= gdbarch_num_regs (current_gdbarch) |
1005 | + gdbarch_num_pseudo_regs (current_gdbarch)) | |
c906108c | 1006 | { |
23136709 | 1007 | reg_value_complaint (SYMBOL_VALUE (sym), |
f57d151a UW |
1008 | gdbarch_num_regs (current_gdbarch) |
1009 | + gdbarch_num_pseudo_regs (current_gdbarch), | |
de5ad195 | 1010 | SYMBOL_PRINT_NAME (sym)); |
3e8c568d UW |
1011 | SYMBOL_VALUE (sym) = gdbarch_sp_regnum (current_gdbarch); |
1012 | /* Known safe, though useless */ | |
c906108c | 1013 | } |
176620f1 | 1014 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
1015 | if (within_function) |
1016 | { | |
192cb3d4 MK |
1017 | /* Sun cc uses a pair of symbols, one 'p' and one 'r', with |
1018 | the same name to represent an argument passed in a | |
1019 | register. GCC uses 'P' for the same case. So if we find | |
1020 | such a symbol pair we combine it into one 'P' symbol. | |
1021 | For Sun cc we need to do this regardless of | |
1022 | stabs_argument_has_addr, because the compiler puts out | |
1023 | the 'p' symbol even if it never saves the argument onto | |
1024 | the stack. | |
1025 | ||
1026 | On most machines, we want to preserve both symbols, so | |
1027 | that we can still get information about what is going on | |
1028 | with the stack (VAX for computing args_printed, using | |
1029 | stack slots instead of saved registers in backtraces, | |
1030 | etc.). | |
c906108c SS |
1031 | |
1032 | Note that this code illegally combines | |
c5aa993b | 1033 | main(argc) struct foo argc; { register struct foo argc; } |
c906108c SS |
1034 | but this case is considered pathological and causes a warning |
1035 | from a decent compiler. */ | |
1036 | ||
1037 | if (local_symbols | |
1038 | && local_symbols->nsyms > 0 | |
5e2b427d | 1039 | && gdbarch_stabs_argument_has_addr (gdbarch, SYMBOL_TYPE (sym))) |
c906108c SS |
1040 | { |
1041 | struct symbol *prev_sym; | |
1042 | prev_sym = local_symbols->symbol[local_symbols->nsyms - 1]; | |
1043 | if ((SYMBOL_CLASS (prev_sym) == LOC_REF_ARG | |
1044 | || SYMBOL_CLASS (prev_sym) == LOC_ARG) | |
3567439c DJ |
1045 | && strcmp (SYMBOL_LINKAGE_NAME (prev_sym), |
1046 | SYMBOL_LINKAGE_NAME (sym)) == 0) | |
c906108c | 1047 | { |
2a2d4dc3 | 1048 | SYMBOL_CLASS (prev_sym) = LOC_REGISTER; |
c906108c SS |
1049 | /* Use the type from the LOC_REGISTER; that is the type |
1050 | that is actually in that register. */ | |
1051 | SYMBOL_TYPE (prev_sym) = SYMBOL_TYPE (sym); | |
1052 | SYMBOL_VALUE (prev_sym) = SYMBOL_VALUE (sym); | |
1053 | sym = prev_sym; | |
1054 | break; | |
1055 | } | |
1056 | } | |
c5aa993b | 1057 | add_symbol_to_list (sym, &local_symbols); |
c906108c SS |
1058 | } |
1059 | else | |
c5aa993b | 1060 | add_symbol_to_list (sym, &file_symbols); |
c906108c SS |
1061 | break; |
1062 | ||
1063 | case 'S': | |
1064 | /* Static symbol at top level of file */ | |
1065 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
1066 | SYMBOL_CLASS (sym) = LOC_STATIC; | |
1067 | SYMBOL_VALUE_ADDRESS (sym) = valu; | |
5e2b427d UW |
1068 | if (gdbarch_static_transform_name_p (gdbarch) |
1069 | && gdbarch_static_transform_name (gdbarch, | |
3567439c DJ |
1070 | SYMBOL_LINKAGE_NAME (sym)) |
1071 | != SYMBOL_LINKAGE_NAME (sym)) | |
c5aa993b JM |
1072 | { |
1073 | struct minimal_symbol *msym; | |
3567439c | 1074 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), NULL, objfile); |
c5aa993b JM |
1075 | if (msym != NULL) |
1076 | { | |
3567439c DJ |
1077 | char *new_name = gdbarch_static_transform_name |
1078 | (gdbarch, SYMBOL_LINKAGE_NAME (sym)); | |
1079 | SYMBOL_SET_LINKAGE_NAME (sym, new_name); | |
c5aa993b JM |
1080 | SYMBOL_VALUE_ADDRESS (sym) = SYMBOL_VALUE_ADDRESS (msym); |
1081 | } | |
1082 | } | |
176620f1 | 1083 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
1084 | add_symbol_to_list (sym, &file_symbols); |
1085 | break; | |
1086 | ||
1087 | case 't': | |
52eea4ce JB |
1088 | /* In Ada, there is no distinction between typedef and non-typedef; |
1089 | any type declaration implicitly has the equivalent of a typedef, | |
1090 | and thus 't' is in fact equivalent to 'Tt'. | |
1091 | ||
1092 | Therefore, for Ada units, we check the character immediately | |
1093 | before the 't', and if we do not find a 'T', then make sure to | |
1094 | create the associated symbol in the STRUCT_DOMAIN ('t' definitions | |
1095 | will be stored in the VAR_DOMAIN). If the symbol was indeed | |
1096 | defined as 'Tt' then the STRUCT_DOMAIN symbol will be created | |
1097 | elsewhere, so we don't need to take care of that. | |
1098 | ||
1099 | This is important to do, because of forward references: | |
1100 | The cleanup of undefined types stored in undef_types only uses | |
1101 | STRUCT_DOMAIN symbols to perform the replacement. */ | |
1102 | synonym = (SYMBOL_LANGUAGE (sym) == language_ada && p[-2] != 'T'); | |
1103 | ||
e2cd42dd | 1104 | /* Typedef */ |
c906108c SS |
1105 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
1106 | ||
1107 | /* For a nameless type, we don't want a create a symbol, thus we | |
c5aa993b JM |
1108 | did not use `sym'. Return without further processing. */ |
1109 | if (nameless) | |
1110 | return NULL; | |
c906108c SS |
1111 | |
1112 | SYMBOL_CLASS (sym) = LOC_TYPEDEF; | |
1113 | SYMBOL_VALUE (sym) = valu; | |
176620f1 | 1114 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c | 1115 | /* C++ vagaries: we may have a type which is derived from |
c5aa993b JM |
1116 | a base type which did not have its name defined when the |
1117 | derived class was output. We fill in the derived class's | |
1118 | base part member's name here in that case. */ | |
c906108c SS |
1119 | if (TYPE_NAME (SYMBOL_TYPE (sym)) != NULL) |
1120 | if ((TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT | |
1121 | || TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_UNION) | |
1122 | && TYPE_N_BASECLASSES (SYMBOL_TYPE (sym))) | |
1123 | { | |
1124 | int j; | |
1125 | for (j = TYPE_N_BASECLASSES (SYMBOL_TYPE (sym)) - 1; j >= 0; j--) | |
1126 | if (TYPE_BASECLASS_NAME (SYMBOL_TYPE (sym), j) == 0) | |
1127 | TYPE_BASECLASS_NAME (SYMBOL_TYPE (sym), j) = | |
1128 | type_name_no_tag (TYPE_BASECLASS (SYMBOL_TYPE (sym), j)); | |
1129 | } | |
1130 | ||
1131 | if (TYPE_NAME (SYMBOL_TYPE (sym)) == NULL) | |
1132 | { | |
1133 | /* gcc-2.6 or later (when using -fvtable-thunks) | |
1134 | emits a unique named type for a vtable entry. | |
1135 | Some gdb code depends on that specific name. */ | |
1136 | extern const char vtbl_ptr_name[]; | |
1137 | ||
1138 | if ((TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_PTR | |
3567439c | 1139 | && strcmp (SYMBOL_LINKAGE_NAME (sym), vtbl_ptr_name)) |
c906108c SS |
1140 | || TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FUNC) |
1141 | { | |
1142 | /* If we are giving a name to a type such as "pointer to | |
c5aa993b JM |
1143 | foo" or "function returning foo", we better not set |
1144 | the TYPE_NAME. If the program contains "typedef char | |
1145 | *caddr_t;", we don't want all variables of type char | |
1146 | * to print as caddr_t. This is not just a | |
1147 | consequence of GDB's type management; PCC and GCC (at | |
1148 | least through version 2.4) both output variables of | |
1149 | either type char * or caddr_t with the type number | |
1150 | defined in the 't' symbol for caddr_t. If a future | |
1151 | compiler cleans this up it GDB is not ready for it | |
1152 | yet, but if it becomes ready we somehow need to | |
1153 | disable this check (without breaking the PCC/GCC2.4 | |
1154 | case). | |
1155 | ||
1156 | Sigh. | |
1157 | ||
1158 | Fortunately, this check seems not to be necessary | |
1159 | for anything except pointers or functions. */ | |
49d97c60 EZ |
1160 | /* ezannoni: 2000-10-26. This seems to apply for |
1161 | versions of gcc older than 2.8. This was the original | |
1162 | problem: with the following code gdb would tell that | |
1163 | the type for name1 is caddr_t, and func is char() | |
1164 | typedef char *caddr_t; | |
1165 | char *name2; | |
1166 | struct x | |
1167 | { | |
1168 | char *name1; | |
1169 | } xx; | |
1170 | char *func() | |
1171 | { | |
1172 | } | |
1173 | main () {} | |
1174 | */ | |
1175 | ||
1176 | /* Pascal accepts names for pointer types. */ | |
1177 | if (current_subfile->language == language_pascal) | |
1178 | { | |
3567439c | 1179 | TYPE_NAME (SYMBOL_TYPE (sym)) = SYMBOL_LINKAGE_NAME (sym); |
49d97c60 | 1180 | } |
c906108c SS |
1181 | } |
1182 | else | |
3567439c | 1183 | TYPE_NAME (SYMBOL_TYPE (sym)) = SYMBOL_LINKAGE_NAME (sym); |
c906108c SS |
1184 | } |
1185 | ||
1186 | add_symbol_to_list (sym, &file_symbols); | |
52eea4ce JB |
1187 | |
1188 | if (synonym) | |
1189 | { | |
1190 | /* Create the STRUCT_DOMAIN clone. */ | |
1191 | struct symbol *struct_sym = (struct symbol *) | |
1192 | obstack_alloc (&objfile->objfile_obstack, sizeof (struct symbol)); | |
1193 | ||
1194 | *struct_sym = *sym; | |
1195 | SYMBOL_CLASS (struct_sym) = LOC_TYPEDEF; | |
1196 | SYMBOL_VALUE (struct_sym) = valu; | |
1197 | SYMBOL_DOMAIN (struct_sym) = STRUCT_DOMAIN; | |
1198 | if (TYPE_NAME (SYMBOL_TYPE (sym)) == 0) | |
1199 | TYPE_NAME (SYMBOL_TYPE (sym)) | |
1200 | = obconcat (&objfile->objfile_obstack, "", "", | |
3567439c | 1201 | SYMBOL_LINKAGE_NAME (sym)); |
52eea4ce JB |
1202 | add_symbol_to_list (struct_sym, &file_symbols); |
1203 | } | |
1204 | ||
c906108c SS |
1205 | break; |
1206 | ||
1207 | case 'T': | |
1208 | /* Struct, union, or enum tag. For GNU C++, this can be be followed | |
c5aa993b | 1209 | by 't' which means we are typedef'ing it as well. */ |
c906108c SS |
1210 | synonym = *p == 't'; |
1211 | ||
1212 | if (synonym) | |
1213 | p++; | |
c906108c SS |
1214 | |
1215 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
25caa7a8 | 1216 | |
c906108c | 1217 | /* For a nameless type, we don't want a create a symbol, thus we |
c5aa993b JM |
1218 | did not use `sym'. Return without further processing. */ |
1219 | if (nameless) | |
1220 | return NULL; | |
c906108c SS |
1221 | |
1222 | SYMBOL_CLASS (sym) = LOC_TYPEDEF; | |
1223 | SYMBOL_VALUE (sym) = valu; | |
176620f1 | 1224 | SYMBOL_DOMAIN (sym) = STRUCT_DOMAIN; |
c906108c SS |
1225 | if (TYPE_TAG_NAME (SYMBOL_TYPE (sym)) == 0) |
1226 | TYPE_TAG_NAME (SYMBOL_TYPE (sym)) | |
3567439c DJ |
1227 | = obconcat (&objfile->objfile_obstack, "", "", |
1228 | SYMBOL_LINKAGE_NAME (sym)); | |
c906108c SS |
1229 | add_symbol_to_list (sym, &file_symbols); |
1230 | ||
1231 | if (synonym) | |
1232 | { | |
1233 | /* Clone the sym and then modify it. */ | |
aa1ee363 | 1234 | struct symbol *typedef_sym = (struct symbol *) |
4a146b47 | 1235 | obstack_alloc (&objfile->objfile_obstack, sizeof (struct symbol)); |
c906108c SS |
1236 | *typedef_sym = *sym; |
1237 | SYMBOL_CLASS (typedef_sym) = LOC_TYPEDEF; | |
1238 | SYMBOL_VALUE (typedef_sym) = valu; | |
176620f1 | 1239 | SYMBOL_DOMAIN (typedef_sym) = VAR_DOMAIN; |
c906108c SS |
1240 | if (TYPE_NAME (SYMBOL_TYPE (sym)) == 0) |
1241 | TYPE_NAME (SYMBOL_TYPE (sym)) | |
3567439c DJ |
1242 | = obconcat (&objfile->objfile_obstack, "", "", |
1243 | SYMBOL_LINKAGE_NAME (sym)); | |
c906108c SS |
1244 | add_symbol_to_list (typedef_sym, &file_symbols); |
1245 | } | |
1246 | break; | |
1247 | ||
1248 | case 'V': | |
1249 | /* Static symbol of local scope */ | |
1250 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
1251 | SYMBOL_CLASS (sym) = LOC_STATIC; | |
1252 | SYMBOL_VALUE_ADDRESS (sym) = valu; | |
5e2b427d UW |
1253 | if (gdbarch_static_transform_name_p (gdbarch) |
1254 | && gdbarch_static_transform_name (gdbarch, | |
3567439c DJ |
1255 | SYMBOL_LINKAGE_NAME (sym)) |
1256 | != SYMBOL_LINKAGE_NAME (sym)) | |
c5aa993b JM |
1257 | { |
1258 | struct minimal_symbol *msym; | |
3567439c | 1259 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), NULL, objfile); |
c5aa993b JM |
1260 | if (msym != NULL) |
1261 | { | |
3567439c DJ |
1262 | char *new_name = gdbarch_static_transform_name |
1263 | (gdbarch, SYMBOL_LINKAGE_NAME (sym)); | |
1264 | SYMBOL_SET_LINKAGE_NAME (sym, new_name); | |
c5aa993b JM |
1265 | SYMBOL_VALUE_ADDRESS (sym) = SYMBOL_VALUE_ADDRESS (msym); |
1266 | } | |
1267 | } | |
176620f1 | 1268 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
1269 | add_symbol_to_list (sym, &local_symbols); |
1270 | break; | |
1271 | ||
1272 | case 'v': | |
1273 | /* Reference parameter */ | |
1274 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
1275 | SYMBOL_CLASS (sym) = LOC_REF_ARG; | |
2a2d4dc3 | 1276 | SYMBOL_IS_ARGUMENT (sym) = 1; |
c906108c | 1277 | SYMBOL_VALUE (sym) = valu; |
176620f1 | 1278 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
1279 | add_symbol_to_list (sym, &local_symbols); |
1280 | break; | |
1281 | ||
1282 | case 'a': | |
1283 | /* Reference parameter which is in a register. */ | |
1284 | SYMBOL_TYPE (sym) = read_type (&p, objfile); | |
1285 | SYMBOL_CLASS (sym) = LOC_REGPARM_ADDR; | |
2a2d4dc3 | 1286 | SYMBOL_IS_ARGUMENT (sym) = 1; |
055d23b8 | 1287 | SYMBOL_VALUE (sym) = gdbarch_stab_reg_to_regnum (current_gdbarch, valu); |
f57d151a UW |
1288 | if (SYMBOL_VALUE (sym) >= gdbarch_num_regs (current_gdbarch) |
1289 | + gdbarch_num_pseudo_regs (current_gdbarch)) | |
c906108c | 1290 | { |
23136709 | 1291 | reg_value_complaint (SYMBOL_VALUE (sym), |
f57d151a UW |
1292 | gdbarch_num_regs (current_gdbarch) |
1293 | + gdbarch_num_pseudo_regs (current_gdbarch), | |
de5ad195 | 1294 | SYMBOL_PRINT_NAME (sym)); |
3e8c568d UW |
1295 | SYMBOL_VALUE (sym) = gdbarch_sp_regnum (current_gdbarch); |
1296 | /* Known safe, though useless */ | |
c906108c | 1297 | } |
176620f1 | 1298 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
1299 | add_symbol_to_list (sym, &local_symbols); |
1300 | break; | |
1301 | ||
1302 | case 'X': | |
1303 | /* This is used by Sun FORTRAN for "function result value". | |
c5aa993b JM |
1304 | Sun claims ("dbx and dbxtool interfaces", 2nd ed) |
1305 | that Pascal uses it too, but when I tried it Pascal used | |
1306 | "x:3" (local symbol) instead. */ | |
c906108c SS |
1307 | SYMBOL_TYPE (sym) = read_type (&p, objfile); |
1308 | SYMBOL_CLASS (sym) = LOC_LOCAL; | |
1309 | SYMBOL_VALUE (sym) = valu; | |
176620f1 | 1310 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
1311 | add_symbol_to_list (sym, &local_symbols); |
1312 | break; | |
c906108c SS |
1313 | |
1314 | default: | |
1315 | SYMBOL_TYPE (sym) = error_type (&p, objfile); | |
1316 | SYMBOL_CLASS (sym) = LOC_CONST; | |
1317 | SYMBOL_VALUE (sym) = 0; | |
176620f1 | 1318 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
1319 | add_symbol_to_list (sym, &file_symbols); |
1320 | break; | |
1321 | } | |
1322 | ||
192cb3d4 MK |
1323 | /* Some systems pass variables of certain types by reference instead |
1324 | of by value, i.e. they will pass the address of a structure (in a | |
1325 | register or on the stack) instead of the structure itself. */ | |
c906108c | 1326 | |
5e2b427d | 1327 | if (gdbarch_stabs_argument_has_addr (gdbarch, SYMBOL_TYPE (sym)) |
2a2d4dc3 | 1328 | && SYMBOL_IS_ARGUMENT (sym)) |
c906108c | 1329 | { |
2a2d4dc3 | 1330 | /* We have to convert LOC_REGISTER to LOC_REGPARM_ADDR (for |
192cb3d4 | 1331 | variables passed in a register). */ |
2a2d4dc3 | 1332 | if (SYMBOL_CLASS (sym) == LOC_REGISTER) |
192cb3d4 MK |
1333 | SYMBOL_CLASS (sym) = LOC_REGPARM_ADDR; |
1334 | /* Likewise for converting LOC_ARG to LOC_REF_ARG (for the 7th | |
1335 | and subsequent arguments on SPARC, for example). */ | |
1336 | else if (SYMBOL_CLASS (sym) == LOC_ARG) | |
1337 | SYMBOL_CLASS (sym) = LOC_REF_ARG; | |
c906108c SS |
1338 | } |
1339 | ||
c906108c SS |
1340 | return sym; |
1341 | } | |
1342 | ||
c906108c SS |
1343 | /* Skip rest of this symbol and return an error type. |
1344 | ||
1345 | General notes on error recovery: error_type always skips to the | |
1346 | end of the symbol (modulo cretinous dbx symbol name continuation). | |
1347 | Thus code like this: | |
1348 | ||
1349 | if (*(*pp)++ != ';') | |
c5aa993b | 1350 | return error_type (pp, objfile); |
c906108c SS |
1351 | |
1352 | is wrong because if *pp starts out pointing at '\0' (typically as the | |
1353 | result of an earlier error), it will be incremented to point to the | |
1354 | start of the next symbol, which might produce strange results, at least | |
1355 | if you run off the end of the string table. Instead use | |
1356 | ||
1357 | if (**pp != ';') | |
c5aa993b | 1358 | return error_type (pp, objfile); |
c906108c SS |
1359 | ++*pp; |
1360 | ||
1361 | or | |
1362 | ||
1363 | if (**pp != ';') | |
c5aa993b | 1364 | foo = error_type (pp, objfile); |
c906108c | 1365 | else |
c5aa993b | 1366 | ++*pp; |
c906108c SS |
1367 | |
1368 | And in case it isn't obvious, the point of all this hair is so the compiler | |
1369 | can define new types and new syntaxes, and old versions of the | |
1370 | debugger will be able to read the new symbol tables. */ | |
1371 | ||
1372 | static struct type * | |
fba45db2 | 1373 | error_type (char **pp, struct objfile *objfile) |
c906108c | 1374 | { |
e2e0b3e5 | 1375 | complaint (&symfile_complaints, _("couldn't parse type; debugger out of date?")); |
c906108c SS |
1376 | while (1) |
1377 | { | |
1378 | /* Skip to end of symbol. */ | |
1379 | while (**pp != '\0') | |
1380 | { | |
1381 | (*pp)++; | |
1382 | } | |
1383 | ||
1384 | /* Check for and handle cretinous dbx symbol name continuation! */ | |
1385 | if ((*pp)[-1] == '\\' || (*pp)[-1] == '?') | |
1386 | { | |
1387 | *pp = next_symbol_text (objfile); | |
1388 | } | |
1389 | else | |
1390 | { | |
1391 | break; | |
1392 | } | |
1393 | } | |
1394 | return (builtin_type_error); | |
1395 | } | |
c906108c | 1396 | \f |
c5aa993b | 1397 | |
c906108c SS |
1398 | /* Read type information or a type definition; return the type. Even |
1399 | though this routine accepts either type information or a type | |
1400 | definition, the distinction is relevant--some parts of stabsread.c | |
1401 | assume that type information starts with a digit, '-', or '(' in | |
1402 | deciding whether to call read_type. */ | |
1403 | ||
a7a48797 | 1404 | static struct type * |
aa1ee363 | 1405 | read_type (char **pp, struct objfile *objfile) |
c906108c | 1406 | { |
52f0bd74 | 1407 | struct type *type = 0; |
c906108c SS |
1408 | struct type *type1; |
1409 | int typenums[2]; | |
1410 | char type_descriptor; | |
1411 | ||
1412 | /* Size in bits of type if specified by a type attribute, or -1 if | |
1413 | there is no size attribute. */ | |
1414 | int type_size = -1; | |
1415 | ||
1416 | /* Used to distinguish string and bitstring from char-array and set. */ | |
1417 | int is_string = 0; | |
1418 | ||
e2cd42dd MS |
1419 | /* Used to distinguish vector from array. */ |
1420 | int is_vector = 0; | |
1421 | ||
c906108c SS |
1422 | /* Read type number if present. The type number may be omitted. |
1423 | for instance in a two-dimensional array declared with type | |
1424 | "ar1;1;10;ar1;1;10;4". */ | |
1425 | if ((**pp >= '0' && **pp <= '9') | |
1426 | || **pp == '(' | |
1427 | || **pp == '-') | |
1428 | { | |
1429 | if (read_type_number (pp, typenums) != 0) | |
1430 | return error_type (pp, objfile); | |
c5aa993b | 1431 | |
c906108c | 1432 | if (**pp != '=') |
8cfe231d JB |
1433 | { |
1434 | /* Type is not being defined here. Either it already | |
1435 | exists, or this is a forward reference to it. | |
1436 | dbx_alloc_type handles both cases. */ | |
1437 | type = dbx_alloc_type (typenums, objfile); | |
1438 | ||
1439 | /* If this is a forward reference, arrange to complain if it | |
1440 | doesn't get patched up by the time we're done | |
1441 | reading. */ | |
1442 | if (TYPE_CODE (type) == TYPE_CODE_UNDEF) | |
bf362611 | 1443 | add_undefined_type (type, typenums); |
8cfe231d JB |
1444 | |
1445 | return type; | |
1446 | } | |
c906108c SS |
1447 | |
1448 | /* Type is being defined here. */ | |
1449 | /* Skip the '='. | |
c5aa993b JM |
1450 | Also skip the type descriptor - we get it below with (*pp)[-1]. */ |
1451 | (*pp) += 2; | |
c906108c SS |
1452 | } |
1453 | else | |
1454 | { | |
1455 | /* 'typenums=' not present, type is anonymous. Read and return | |
c5aa993b | 1456 | the definition, but don't put it in the type vector. */ |
c906108c SS |
1457 | typenums[0] = typenums[1] = -1; |
1458 | (*pp)++; | |
1459 | } | |
1460 | ||
c5aa993b | 1461 | again: |
c906108c SS |
1462 | type_descriptor = (*pp)[-1]; |
1463 | switch (type_descriptor) | |
1464 | { | |
1465 | case 'x': | |
1466 | { | |
1467 | enum type_code code; | |
1468 | ||
1469 | /* Used to index through file_symbols. */ | |
1470 | struct pending *ppt; | |
1471 | int i; | |
c5aa993b | 1472 | |
c906108c SS |
1473 | /* Name including "struct", etc. */ |
1474 | char *type_name; | |
c5aa993b | 1475 | |
c906108c SS |
1476 | { |
1477 | char *from, *to, *p, *q1, *q2; | |
c5aa993b | 1478 | |
c906108c SS |
1479 | /* Set the type code according to the following letter. */ |
1480 | switch ((*pp)[0]) | |
1481 | { | |
1482 | case 's': | |
1483 | code = TYPE_CODE_STRUCT; | |
1484 | break; | |
1485 | case 'u': | |
1486 | code = TYPE_CODE_UNION; | |
1487 | break; | |
1488 | case 'e': | |
1489 | code = TYPE_CODE_ENUM; | |
1490 | break; | |
1491 | default: | |
1492 | { | |
1493 | /* Complain and keep going, so compilers can invent new | |
1494 | cross-reference types. */ | |
23136709 | 1495 | complaint (&symfile_complaints, |
e2e0b3e5 | 1496 | _("Unrecognized cross-reference type `%c'"), (*pp)[0]); |
c906108c SS |
1497 | code = TYPE_CODE_STRUCT; |
1498 | break; | |
1499 | } | |
1500 | } | |
c5aa993b | 1501 | |
c906108c SS |
1502 | q1 = strchr (*pp, '<'); |
1503 | p = strchr (*pp, ':'); | |
1504 | if (p == NULL) | |
1505 | return error_type (pp, objfile); | |
1506 | if (q1 && p > q1 && p[1] == ':') | |
1507 | { | |
1508 | int nesting_level = 0; | |
1509 | for (q2 = q1; *q2; q2++) | |
1510 | { | |
1511 | if (*q2 == '<') | |
1512 | nesting_level++; | |
1513 | else if (*q2 == '>') | |
1514 | nesting_level--; | |
1515 | else if (*q2 == ':' && nesting_level == 0) | |
1516 | break; | |
1517 | } | |
1518 | p = q2; | |
1519 | if (*p != ':') | |
1520 | return error_type (pp, objfile); | |
1521 | } | |
c5aa993b | 1522 | to = type_name = |
b99607ea | 1523 | (char *) obstack_alloc (&objfile->objfile_obstack, p - *pp + 1); |
c5aa993b | 1524 | |
c906108c SS |
1525 | /* Copy the name. */ |
1526 | from = *pp + 1; | |
c5aa993b | 1527 | while (from < p) |
c906108c SS |
1528 | *to++ = *from++; |
1529 | *to = '\0'; | |
c5aa993b | 1530 | |
c906108c SS |
1531 | /* Set the pointer ahead of the name which we just read, and |
1532 | the colon. */ | |
1533 | *pp = from + 1; | |
1534 | } | |
1535 | ||
149d821b JB |
1536 | /* If this type has already been declared, then reuse the same |
1537 | type, rather than allocating a new one. This saves some | |
1538 | memory. */ | |
c906108c SS |
1539 | |
1540 | for (ppt = file_symbols; ppt; ppt = ppt->next) | |
1541 | for (i = 0; i < ppt->nsyms; i++) | |
1542 | { | |
1543 | struct symbol *sym = ppt->symbol[i]; | |
1544 | ||
1545 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF | |
176620f1 | 1546 | && SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN |
c906108c | 1547 | && (TYPE_CODE (SYMBOL_TYPE (sym)) == code) |
3567439c | 1548 | && strcmp (SYMBOL_LINKAGE_NAME (sym), type_name) == 0) |
c906108c | 1549 | { |
b99607ea | 1550 | obstack_free (&objfile->objfile_obstack, type_name); |
c906108c | 1551 | type = SYMBOL_TYPE (sym); |
149d821b JB |
1552 | if (typenums[0] != -1) |
1553 | *dbx_lookup_type (typenums) = type; | |
c906108c SS |
1554 | return type; |
1555 | } | |
1556 | } | |
1557 | ||
1558 | /* Didn't find the type to which this refers, so we must | |
1559 | be dealing with a forward reference. Allocate a type | |
1560 | structure for it, and keep track of it so we can | |
1561 | fill in the rest of the fields when we get the full | |
1562 | type. */ | |
1563 | type = dbx_alloc_type (typenums, objfile); | |
1564 | TYPE_CODE (type) = code; | |
1565 | TYPE_TAG_NAME (type) = type_name; | |
c5aa993b | 1566 | INIT_CPLUS_SPECIFIC (type); |
876cecd0 | 1567 | TYPE_STUB (type) = 1; |
c906108c | 1568 | |
bf362611 | 1569 | add_undefined_type (type, typenums); |
c906108c SS |
1570 | return type; |
1571 | } | |
1572 | ||
c5aa993b | 1573 | case '-': /* RS/6000 built-in type */ |
c906108c SS |
1574 | case '0': |
1575 | case '1': | |
1576 | case '2': | |
1577 | case '3': | |
1578 | case '4': | |
1579 | case '5': | |
1580 | case '6': | |
1581 | case '7': | |
1582 | case '8': | |
1583 | case '9': | |
1584 | case '(': | |
1585 | (*pp)--; | |
1586 | ||
1587 | /* We deal with something like t(1,2)=(3,4)=... which | |
c5aa993b | 1588 | the Lucid compiler and recent gcc versions (post 2.7.3) use. */ |
c906108c SS |
1589 | |
1590 | /* Allocate and enter the typedef type first. | |
c5aa993b | 1591 | This handles recursive types. */ |
c906108c SS |
1592 | type = dbx_alloc_type (typenums, objfile); |
1593 | TYPE_CODE (type) = TYPE_CODE_TYPEDEF; | |
c5aa993b JM |
1594 | { |
1595 | struct type *xtype = read_type (pp, objfile); | |
c906108c SS |
1596 | if (type == xtype) |
1597 | { | |
1598 | /* It's being defined as itself. That means it is "void". */ | |
1599 | TYPE_CODE (type) = TYPE_CODE_VOID; | |
1600 | TYPE_LENGTH (type) = 1; | |
1601 | } | |
1602 | else if (type_size >= 0 || is_string) | |
1603 | { | |
dd6bda65 DJ |
1604 | /* This is the absolute wrong way to construct types. Every |
1605 | other debug format has found a way around this problem and | |
1606 | the related problems with unnecessarily stubbed types; | |
1607 | someone motivated should attempt to clean up the issue | |
1608 | here as well. Once a type pointed to has been created it | |
13a393b0 JB |
1609 | should not be modified. |
1610 | ||
1611 | Well, it's not *absolutely* wrong. Constructing recursive | |
1612 | types (trees, linked lists) necessarily entails modifying | |
1613 | types after creating them. Constructing any loop structure | |
1614 | entails side effects. The Dwarf 2 reader does handle this | |
1615 | more gracefully (it never constructs more than once | |
1616 | instance of a type object, so it doesn't have to copy type | |
1617 | objects wholesale), but it still mutates type objects after | |
1618 | other folks have references to them. | |
1619 | ||
1620 | Keep in mind that this circularity/mutation issue shows up | |
1621 | at the source language level, too: C's "incomplete types", | |
1622 | for example. So the proper cleanup, I think, would be to | |
1623 | limit GDB's type smashing to match exactly those required | |
1624 | by the source language. So GDB could have a | |
1625 | "complete_this_type" function, but never create unnecessary | |
1626 | copies of a type otherwise. */ | |
dd6bda65 | 1627 | replace_type (type, xtype); |
c906108c SS |
1628 | TYPE_NAME (type) = NULL; |
1629 | TYPE_TAG_NAME (type) = NULL; | |
1630 | } | |
1631 | else | |
1632 | { | |
876cecd0 | 1633 | TYPE_TARGET_STUB (type) = 1; |
c906108c SS |
1634 | TYPE_TARGET_TYPE (type) = xtype; |
1635 | } | |
1636 | } | |
1637 | break; | |
1638 | ||
c5aa993b JM |
1639 | /* In the following types, we must be sure to overwrite any existing |
1640 | type that the typenums refer to, rather than allocating a new one | |
1641 | and making the typenums point to the new one. This is because there | |
1642 | may already be pointers to the existing type (if it had been | |
1643 | forward-referenced), and we must change it to a pointer, function, | |
1644 | reference, or whatever, *in-place*. */ | |
c906108c | 1645 | |
e2cd42dd | 1646 | case '*': /* Pointer to another type */ |
c906108c SS |
1647 | type1 = read_type (pp, objfile); |
1648 | type = make_pointer_type (type1, dbx_lookup_type (typenums)); | |
1649 | break; | |
1650 | ||
c5aa993b | 1651 | case '&': /* Reference to another type */ |
c906108c SS |
1652 | type1 = read_type (pp, objfile); |
1653 | type = make_reference_type (type1, dbx_lookup_type (typenums)); | |
1654 | break; | |
1655 | ||
c5aa993b | 1656 | case 'f': /* Function returning another type */ |
c906108c SS |
1657 | type1 = read_type (pp, objfile); |
1658 | type = make_function_type (type1, dbx_lookup_type (typenums)); | |
1659 | break; | |
1660 | ||
da966255 JB |
1661 | case 'g': /* Prototyped function. (Sun) */ |
1662 | { | |
1663 | /* Unresolved questions: | |
1664 | ||
1665 | - According to Sun's ``STABS Interface Manual'', for 'f' | |
1666 | and 'F' symbol descriptors, a `0' in the argument type list | |
1667 | indicates a varargs function. But it doesn't say how 'g' | |
1668 | type descriptors represent that info. Someone with access | |
1669 | to Sun's toolchain should try it out. | |
1670 | ||
1671 | - According to the comment in define_symbol (search for | |
1672 | `process_prototype_types:'), Sun emits integer arguments as | |
1673 | types which ref themselves --- like `void' types. Do we | |
1674 | have to deal with that here, too? Again, someone with | |
1675 | access to Sun's toolchain should try it out and let us | |
1676 | know. */ | |
1677 | ||
1678 | const char *type_start = (*pp) - 1; | |
1679 | struct type *return_type = read_type (pp, objfile); | |
1680 | struct type *func_type | |
1681 | = make_function_type (return_type, dbx_lookup_type (typenums)); | |
1682 | struct type_list { | |
1683 | struct type *type; | |
1684 | struct type_list *next; | |
1685 | } *arg_types = 0; | |
1686 | int num_args = 0; | |
1687 | ||
1688 | while (**pp && **pp != '#') | |
1689 | { | |
1690 | struct type *arg_type = read_type (pp, objfile); | |
1691 | struct type_list *new = alloca (sizeof (*new)); | |
1692 | new->type = arg_type; | |
1693 | new->next = arg_types; | |
1694 | arg_types = new; | |
1695 | num_args++; | |
1696 | } | |
1697 | if (**pp == '#') | |
1698 | ++*pp; | |
1699 | else | |
1700 | { | |
23136709 | 1701 | complaint (&symfile_complaints, |
e2e0b3e5 | 1702 | _("Prototyped function type didn't end arguments with `#':\n%s"), |
23136709 | 1703 | type_start); |
da966255 JB |
1704 | } |
1705 | ||
1706 | /* If there is just one argument whose type is `void', then | |
1707 | that's just an empty argument list. */ | |
1708 | if (arg_types | |
1709 | && ! arg_types->next | |
1710 | && TYPE_CODE (arg_types->type) == TYPE_CODE_VOID) | |
1711 | num_args = 0; | |
1712 | ||
1713 | TYPE_FIELDS (func_type) | |
1714 | = (struct field *) TYPE_ALLOC (func_type, | |
1715 | num_args * sizeof (struct field)); | |
1716 | memset (TYPE_FIELDS (func_type), 0, num_args * sizeof (struct field)); | |
1717 | { | |
1718 | int i; | |
1719 | struct type_list *t; | |
1720 | ||
1721 | /* We stuck each argument type onto the front of the list | |
1722 | when we read it, so the list is reversed. Build the | |
1723 | fields array right-to-left. */ | |
1724 | for (t = arg_types, i = num_args - 1; t; t = t->next, i--) | |
1725 | TYPE_FIELD_TYPE (func_type, i) = t->type; | |
1726 | } | |
1727 | TYPE_NFIELDS (func_type) = num_args; | |
876cecd0 | 1728 | TYPE_PROTOTYPED (func_type) = 1; |
da966255 JB |
1729 | |
1730 | type = func_type; | |
1731 | break; | |
1732 | } | |
1733 | ||
c5aa993b | 1734 | case 'k': /* Const qualifier on some type (Sun) */ |
c906108c | 1735 | type = read_type (pp, objfile); |
d7242108 DJ |
1736 | type = make_cv_type (1, TYPE_VOLATILE (type), type, |
1737 | dbx_lookup_type (typenums)); | |
c906108c SS |
1738 | break; |
1739 | ||
c5aa993b | 1740 | case 'B': /* Volatile qual on some type (Sun) */ |
c906108c | 1741 | type = read_type (pp, objfile); |
d7242108 DJ |
1742 | type = make_cv_type (TYPE_CONST (type), 1, type, |
1743 | dbx_lookup_type (typenums)); | |
c906108c SS |
1744 | break; |
1745 | ||
1746 | case '@': | |
c5aa993b JM |
1747 | if (isdigit (**pp) || **pp == '(' || **pp == '-') |
1748 | { /* Member (class & variable) type */ | |
c906108c SS |
1749 | /* FIXME -- we should be doing smash_to_XXX types here. */ |
1750 | ||
1751 | struct type *domain = read_type (pp, objfile); | |
1752 | struct type *memtype; | |
1753 | ||
1754 | if (**pp != ',') | |
1755 | /* Invalid member type data format. */ | |
1756 | return error_type (pp, objfile); | |
1757 | ++*pp; | |
1758 | ||
1759 | memtype = read_type (pp, objfile); | |
1760 | type = dbx_alloc_type (typenums, objfile); | |
0d5de010 | 1761 | smash_to_memberptr_type (type, domain, memtype); |
c906108c | 1762 | } |
c5aa993b JM |
1763 | else |
1764 | /* type attribute */ | |
c906108c SS |
1765 | { |
1766 | char *attr = *pp; | |
1767 | /* Skip to the semicolon. */ | |
1768 | while (**pp != ';' && **pp != '\0') | |
1769 | ++(*pp); | |
1770 | if (**pp == '\0') | |
1771 | return error_type (pp, objfile); | |
1772 | else | |
c5aa993b | 1773 | ++ * pp; /* Skip the semicolon. */ |
c906108c SS |
1774 | |
1775 | switch (*attr) | |
1776 | { | |
e2cd42dd | 1777 | case 's': /* Size attribute */ |
c906108c SS |
1778 | type_size = atoi (attr + 1); |
1779 | if (type_size <= 0) | |
1780 | type_size = -1; | |
1781 | break; | |
1782 | ||
e2cd42dd MS |
1783 | case 'S': /* String attribute */ |
1784 | /* FIXME: check to see if following type is array? */ | |
c906108c SS |
1785 | is_string = 1; |
1786 | break; | |
1787 | ||
e2cd42dd MS |
1788 | case 'V': /* Vector attribute */ |
1789 | /* FIXME: check to see if following type is array? */ | |
1790 | is_vector = 1; | |
1791 | break; | |
1792 | ||
c906108c SS |
1793 | default: |
1794 | /* Ignore unrecognized type attributes, so future compilers | |
c5aa993b | 1795 | can invent new ones. */ |
c906108c SS |
1796 | break; |
1797 | } | |
1798 | ++*pp; | |
1799 | goto again; | |
1800 | } | |
1801 | break; | |
1802 | ||
c5aa993b | 1803 | case '#': /* Method (class & fn) type */ |
c906108c SS |
1804 | if ((*pp)[0] == '#') |
1805 | { | |
1806 | /* We'll get the parameter types from the name. */ | |
1807 | struct type *return_type; | |
1808 | ||
1809 | (*pp)++; | |
1810 | return_type = read_type (pp, objfile); | |
1811 | if (*(*pp)++ != ';') | |
23136709 | 1812 | complaint (&symfile_complaints, |
e2e0b3e5 | 1813 | _("invalid (minimal) member type data format at symtab pos %d."), |
23136709 | 1814 | symnum); |
c906108c SS |
1815 | type = allocate_stub_method (return_type); |
1816 | if (typenums[0] != -1) | |
1817 | *dbx_lookup_type (typenums) = type; | |
1818 | } | |
1819 | else | |
1820 | { | |
1821 | struct type *domain = read_type (pp, objfile); | |
1822 | struct type *return_type; | |
ad2f7632 DJ |
1823 | struct field *args; |
1824 | int nargs, varargs; | |
c906108c SS |
1825 | |
1826 | if (**pp != ',') | |
1827 | /* Invalid member type data format. */ | |
1828 | return error_type (pp, objfile); | |
1829 | else | |
1830 | ++(*pp); | |
1831 | ||
1832 | return_type = read_type (pp, objfile); | |
ad2f7632 | 1833 | args = read_args (pp, ';', objfile, &nargs, &varargs); |
0a029df5 DJ |
1834 | if (args == NULL) |
1835 | return error_type (pp, objfile); | |
c906108c | 1836 | type = dbx_alloc_type (typenums, objfile); |
ad2f7632 DJ |
1837 | smash_to_method_type (type, domain, return_type, args, |
1838 | nargs, varargs); | |
c906108c SS |
1839 | } |
1840 | break; | |
1841 | ||
c5aa993b | 1842 | case 'r': /* Range type */ |
94e10a22 | 1843 | type = read_range_type (pp, typenums, type_size, objfile); |
c906108c SS |
1844 | if (typenums[0] != -1) |
1845 | *dbx_lookup_type (typenums) = type; | |
1846 | break; | |
1847 | ||
1848 | case 'b': | |
c906108c SS |
1849 | { |
1850 | /* Sun ACC builtin int type */ | |
1851 | type = read_sun_builtin_type (pp, typenums, objfile); | |
1852 | if (typenums[0] != -1) | |
1853 | *dbx_lookup_type (typenums) = type; | |
1854 | } | |
1855 | break; | |
1856 | ||
c5aa993b | 1857 | case 'R': /* Sun ACC builtin float type */ |
c906108c SS |
1858 | type = read_sun_floating_type (pp, typenums, objfile); |
1859 | if (typenums[0] != -1) | |
1860 | *dbx_lookup_type (typenums) = type; | |
1861 | break; | |
c5aa993b JM |
1862 | |
1863 | case 'e': /* Enumeration type */ | |
c906108c SS |
1864 | type = dbx_alloc_type (typenums, objfile); |
1865 | type = read_enum_type (pp, type, objfile); | |
1866 | if (typenums[0] != -1) | |
1867 | *dbx_lookup_type (typenums) = type; | |
1868 | break; | |
1869 | ||
c5aa993b JM |
1870 | case 's': /* Struct type */ |
1871 | case 'u': /* Union type */ | |
2ae1c2d2 JB |
1872 | { |
1873 | enum type_code type_code = TYPE_CODE_UNDEF; | |
1874 | type = dbx_alloc_type (typenums, objfile); | |
1875 | switch (type_descriptor) | |
1876 | { | |
1877 | case 's': | |
1878 | type_code = TYPE_CODE_STRUCT; | |
1879 | break; | |
1880 | case 'u': | |
1881 | type_code = TYPE_CODE_UNION; | |
1882 | break; | |
1883 | } | |
1884 | type = read_struct_type (pp, type, type_code, objfile); | |
1885 | break; | |
1886 | } | |
c906108c | 1887 | |
c5aa993b | 1888 | case 'a': /* Array type */ |
c906108c SS |
1889 | if (**pp != 'r') |
1890 | return error_type (pp, objfile); | |
1891 | ++*pp; | |
c5aa993b | 1892 | |
c906108c SS |
1893 | type = dbx_alloc_type (typenums, objfile); |
1894 | type = read_array_type (pp, type, objfile); | |
1895 | if (is_string) | |
1896 | TYPE_CODE (type) = TYPE_CODE_STRING; | |
e2cd42dd | 1897 | if (is_vector) |
ea37ba09 | 1898 | make_vector_type (type); |
c906108c SS |
1899 | break; |
1900 | ||
e2cd42dd | 1901 | case 'S': /* Set or bitstring type */ |
c906108c | 1902 | type1 = read_type (pp, objfile); |
c5aa993b | 1903 | type = create_set_type ((struct type *) NULL, type1); |
c906108c SS |
1904 | if (is_string) |
1905 | TYPE_CODE (type) = TYPE_CODE_BITSTRING; | |
1906 | if (typenums[0] != -1) | |
1907 | *dbx_lookup_type (typenums) = type; | |
1908 | break; | |
1909 | ||
1910 | default: | |
1911 | --*pp; /* Go back to the symbol in error */ | |
c5aa993b | 1912 | /* Particularly important if it was \0! */ |
c906108c SS |
1913 | return error_type (pp, objfile); |
1914 | } | |
1915 | ||
1916 | if (type == 0) | |
1917 | { | |
8a3fe4f8 | 1918 | warning (_("GDB internal error, type is NULL in stabsread.c.")); |
c906108c SS |
1919 | return error_type (pp, objfile); |
1920 | } | |
1921 | ||
1922 | /* Size specified in a type attribute overrides any other size. */ | |
1923 | if (type_size != -1) | |
1924 | TYPE_LENGTH (type) = (type_size + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
1925 | ||
1926 | return type; | |
1927 | } | |
1928 | \f | |
1929 | /* RS/6000 xlc/dbx combination uses a set of builtin types, starting from -1. | |
1930 | Return the proper type node for a given builtin type number. */ | |
1931 | ||
1932 | static struct type * | |
fba45db2 | 1933 | rs6000_builtin_type (int typenum) |
c906108c SS |
1934 | { |
1935 | /* We recognize types numbered from -NUMBER_RECOGNIZED to -1. */ | |
1936 | #define NUMBER_RECOGNIZED 34 | |
1937 | /* This includes an empty slot for type number -0. */ | |
1938 | static struct type *negative_types[NUMBER_RECOGNIZED + 1]; | |
1939 | struct type *rettype = NULL; | |
1940 | ||
1941 | if (typenum >= 0 || typenum < -NUMBER_RECOGNIZED) | |
1942 | { | |
e2e0b3e5 | 1943 | complaint (&symfile_complaints, _("Unknown builtin type %d"), typenum); |
c906108c SS |
1944 | return builtin_type_error; |
1945 | } | |
1946 | if (negative_types[-typenum] != NULL) | |
1947 | return negative_types[-typenum]; | |
1948 | ||
1949 | #if TARGET_CHAR_BIT != 8 | |
c5aa993b | 1950 | #error This code wrong for TARGET_CHAR_BIT not 8 |
c906108c SS |
1951 | /* These definitions all assume that TARGET_CHAR_BIT is 8. I think |
1952 | that if that ever becomes not true, the correct fix will be to | |
1953 | make the size in the struct type to be in bits, not in units of | |
1954 | TARGET_CHAR_BIT. */ | |
1955 | #endif | |
1956 | ||
1957 | switch (-typenum) | |
1958 | { | |
1959 | case 1: | |
1960 | /* The size of this and all the other types are fixed, defined | |
c5aa993b JM |
1961 | by the debugging format. If there is a type called "int" which |
1962 | is other than 32 bits, then it should use a new negative type | |
1963 | number (or avoid negative type numbers for that case). | |
1964 | See stabs.texinfo. */ | |
c906108c SS |
1965 | rettype = init_type (TYPE_CODE_INT, 4, 0, "int", NULL); |
1966 | break; | |
1967 | case 2: | |
1968 | rettype = init_type (TYPE_CODE_INT, 1, 0, "char", NULL); | |
1969 | break; | |
1970 | case 3: | |
1971 | rettype = init_type (TYPE_CODE_INT, 2, 0, "short", NULL); | |
1972 | break; | |
1973 | case 4: | |
1974 | rettype = init_type (TYPE_CODE_INT, 4, 0, "long", NULL); | |
1975 | break; | |
1976 | case 5: | |
1977 | rettype = init_type (TYPE_CODE_INT, 1, TYPE_FLAG_UNSIGNED, | |
1978 | "unsigned char", NULL); | |
1979 | break; | |
1980 | case 6: | |
1981 | rettype = init_type (TYPE_CODE_INT, 1, 0, "signed char", NULL); | |
1982 | break; | |
1983 | case 7: | |
1984 | rettype = init_type (TYPE_CODE_INT, 2, TYPE_FLAG_UNSIGNED, | |
1985 | "unsigned short", NULL); | |
1986 | break; | |
1987 | case 8: | |
1988 | rettype = init_type (TYPE_CODE_INT, 4, TYPE_FLAG_UNSIGNED, | |
1989 | "unsigned int", NULL); | |
1990 | break; | |
1991 | case 9: | |
1992 | rettype = init_type (TYPE_CODE_INT, 4, TYPE_FLAG_UNSIGNED, | |
1993 | "unsigned", NULL); | |
1994 | case 10: | |
1995 | rettype = init_type (TYPE_CODE_INT, 4, TYPE_FLAG_UNSIGNED, | |
1996 | "unsigned long", NULL); | |
1997 | break; | |
1998 | case 11: | |
1999 | rettype = init_type (TYPE_CODE_VOID, 1, 0, "void", NULL); | |
2000 | break; | |
2001 | case 12: | |
2002 | /* IEEE single precision (32 bit). */ | |
2003 | rettype = init_type (TYPE_CODE_FLT, 4, 0, "float", NULL); | |
2004 | break; | |
2005 | case 13: | |
2006 | /* IEEE double precision (64 bit). */ | |
2007 | rettype = init_type (TYPE_CODE_FLT, 8, 0, "double", NULL); | |
2008 | break; | |
2009 | case 14: | |
2010 | /* This is an IEEE double on the RS/6000, and different machines with | |
c5aa993b JM |
2011 | different sizes for "long double" should use different negative |
2012 | type numbers. See stabs.texinfo. */ | |
c906108c SS |
2013 | rettype = init_type (TYPE_CODE_FLT, 8, 0, "long double", NULL); |
2014 | break; | |
2015 | case 15: | |
2016 | rettype = init_type (TYPE_CODE_INT, 4, 0, "integer", NULL); | |
2017 | break; | |
2018 | case 16: | |
2019 | rettype = init_type (TYPE_CODE_BOOL, 4, TYPE_FLAG_UNSIGNED, | |
2020 | "boolean", NULL); | |
2021 | break; | |
2022 | case 17: | |
2023 | rettype = init_type (TYPE_CODE_FLT, 4, 0, "short real", NULL); | |
2024 | break; | |
2025 | case 18: | |
2026 | rettype = init_type (TYPE_CODE_FLT, 8, 0, "real", NULL); | |
2027 | break; | |
2028 | case 19: | |
2029 | rettype = init_type (TYPE_CODE_ERROR, 0, 0, "stringptr", NULL); | |
2030 | break; | |
2031 | case 20: | |
2032 | rettype = init_type (TYPE_CODE_CHAR, 1, TYPE_FLAG_UNSIGNED, | |
2033 | "character", NULL); | |
2034 | break; | |
2035 | case 21: | |
2036 | rettype = init_type (TYPE_CODE_BOOL, 1, TYPE_FLAG_UNSIGNED, | |
2037 | "logical*1", NULL); | |
2038 | break; | |
2039 | case 22: | |
2040 | rettype = init_type (TYPE_CODE_BOOL, 2, TYPE_FLAG_UNSIGNED, | |
2041 | "logical*2", NULL); | |
2042 | break; | |
2043 | case 23: | |
2044 | rettype = init_type (TYPE_CODE_BOOL, 4, TYPE_FLAG_UNSIGNED, | |
2045 | "logical*4", NULL); | |
2046 | break; | |
2047 | case 24: | |
2048 | rettype = init_type (TYPE_CODE_BOOL, 4, TYPE_FLAG_UNSIGNED, | |
2049 | "logical", NULL); | |
2050 | break; | |
2051 | case 25: | |
2052 | /* Complex type consisting of two IEEE single precision values. */ | |
2053 | rettype = init_type (TYPE_CODE_COMPLEX, 8, 0, "complex", NULL); | |
f65ca430 DJ |
2054 | TYPE_TARGET_TYPE (rettype) = init_type (TYPE_CODE_FLT, 4, 0, "float", |
2055 | NULL); | |
c906108c SS |
2056 | break; |
2057 | case 26: | |
2058 | /* Complex type consisting of two IEEE double precision values. */ | |
2059 | rettype = init_type (TYPE_CODE_COMPLEX, 16, 0, "double complex", NULL); | |
f65ca430 DJ |
2060 | TYPE_TARGET_TYPE (rettype) = init_type (TYPE_CODE_FLT, 8, 0, "double", |
2061 | NULL); | |
c906108c SS |
2062 | break; |
2063 | case 27: | |
2064 | rettype = init_type (TYPE_CODE_INT, 1, 0, "integer*1", NULL); | |
2065 | break; | |
2066 | case 28: | |
2067 | rettype = init_type (TYPE_CODE_INT, 2, 0, "integer*2", NULL); | |
2068 | break; | |
2069 | case 29: | |
2070 | rettype = init_type (TYPE_CODE_INT, 4, 0, "integer*4", NULL); | |
2071 | break; | |
2072 | case 30: | |
2073 | rettype = init_type (TYPE_CODE_CHAR, 2, 0, "wchar", NULL); | |
2074 | break; | |
2075 | case 31: | |
2076 | rettype = init_type (TYPE_CODE_INT, 8, 0, "long long", NULL); | |
2077 | break; | |
2078 | case 32: | |
2079 | rettype = init_type (TYPE_CODE_INT, 8, TYPE_FLAG_UNSIGNED, | |
2080 | "unsigned long long", NULL); | |
2081 | break; | |
2082 | case 33: | |
2083 | rettype = init_type (TYPE_CODE_INT, 8, TYPE_FLAG_UNSIGNED, | |
2084 | "logical*8", NULL); | |
2085 | break; | |
2086 | case 34: | |
2087 | rettype = init_type (TYPE_CODE_INT, 8, 0, "integer*8", NULL); | |
2088 | break; | |
2089 | } | |
2090 | negative_types[-typenum] = rettype; | |
2091 | return rettype; | |
2092 | } | |
2093 | \f | |
2094 | /* This page contains subroutines of read_type. */ | |
2095 | ||
de17c821 DJ |
2096 | /* Replace *OLD_NAME with the method name portion of PHYSNAME. */ |
2097 | ||
2098 | static void | |
2099 | update_method_name_from_physname (char **old_name, char *physname) | |
2100 | { | |
2101 | char *method_name; | |
2102 | ||
2103 | method_name = method_name_from_physname (physname); | |
2104 | ||
2105 | if (method_name == NULL) | |
c263362b DJ |
2106 | { |
2107 | complaint (&symfile_complaints, | |
e2e0b3e5 | 2108 | _("Method has bad physname %s\n"), physname); |
c263362b DJ |
2109 | return; |
2110 | } | |
de17c821 DJ |
2111 | |
2112 | if (strcmp (*old_name, method_name) != 0) | |
2113 | { | |
2114 | xfree (*old_name); | |
2115 | *old_name = method_name; | |
2116 | } | |
2117 | else | |
2118 | xfree (method_name); | |
2119 | } | |
2120 | ||
c906108c SS |
2121 | /* Read member function stabs info for C++ classes. The form of each member |
2122 | function data is: | |
2123 | ||
c5aa993b | 2124 | NAME :: TYPENUM[=type definition] ARGS : PHYSNAME ; |
c906108c SS |
2125 | |
2126 | An example with two member functions is: | |
2127 | ||
c5aa993b | 2128 | afunc1::20=##15;:i;2A.;afunc2::20:i;2A.; |
c906108c SS |
2129 | |
2130 | For the case of overloaded operators, the format is op$::*.funcs, where | |
2131 | $ is the CPLUS_MARKER (usually '$'), `*' holds the place for an operator | |
2132 | name (such as `+=') and `.' marks the end of the operator name. | |
2133 | ||
2134 | Returns 1 for success, 0 for failure. */ | |
2135 | ||
2136 | static int | |
fba45db2 KB |
2137 | read_member_functions (struct field_info *fip, char **pp, struct type *type, |
2138 | struct objfile *objfile) | |
c906108c SS |
2139 | { |
2140 | int nfn_fields = 0; | |
2141 | int length = 0; | |
2142 | /* Total number of member functions defined in this class. If the class | |
2143 | defines two `f' functions, and one `g' function, then this will have | |
2144 | the value 3. */ | |
2145 | int total_length = 0; | |
2146 | int i; | |
2147 | struct next_fnfield | |
2148 | { | |
2149 | struct next_fnfield *next; | |
2150 | struct fn_field fn_field; | |
c5aa993b JM |
2151 | } |
2152 | *sublist; | |
c906108c SS |
2153 | struct type *look_ahead_type; |
2154 | struct next_fnfieldlist *new_fnlist; | |
2155 | struct next_fnfield *new_sublist; | |
2156 | char *main_fn_name; | |
52f0bd74 | 2157 | char *p; |
c5aa993b | 2158 | |
c906108c SS |
2159 | /* Process each list until we find something that is not a member function |
2160 | or find the end of the functions. */ | |
2161 | ||
2162 | while (**pp != ';') | |
2163 | { | |
2164 | /* We should be positioned at the start of the function name. | |
c5aa993b JM |
2165 | Scan forward to find the first ':' and if it is not the |
2166 | first of a "::" delimiter, then this is not a member function. */ | |
c906108c SS |
2167 | p = *pp; |
2168 | while (*p != ':') | |
2169 | { | |
2170 | p++; | |
2171 | } | |
2172 | if (p[1] != ':') | |
2173 | { | |
2174 | break; | |
2175 | } | |
2176 | ||
2177 | sublist = NULL; | |
2178 | look_ahead_type = NULL; | |
2179 | length = 0; | |
c5aa993b | 2180 | |
c906108c SS |
2181 | new_fnlist = (struct next_fnfieldlist *) |
2182 | xmalloc (sizeof (struct next_fnfieldlist)); | |
b8c9b27d | 2183 | make_cleanup (xfree, new_fnlist); |
c906108c | 2184 | memset (new_fnlist, 0, sizeof (struct next_fnfieldlist)); |
c5aa993b | 2185 | |
c906108c SS |
2186 | if ((*pp)[0] == 'o' && (*pp)[1] == 'p' && is_cplus_marker ((*pp)[2])) |
2187 | { | |
2188 | /* This is a completely wierd case. In order to stuff in the | |
2189 | names that might contain colons (the usual name delimiter), | |
2190 | Mike Tiemann defined a different name format which is | |
2191 | signalled if the identifier is "op$". In that case, the | |
2192 | format is "op$::XXXX." where XXXX is the name. This is | |
2193 | used for names like "+" or "=". YUUUUUUUK! FIXME! */ | |
2194 | /* This lets the user type "break operator+". | |
2195 | We could just put in "+" as the name, but that wouldn't | |
2196 | work for "*". */ | |
8343f86c | 2197 | static char opname[32] = "op$"; |
c906108c | 2198 | char *o = opname + 3; |
c5aa993b | 2199 | |
c906108c SS |
2200 | /* Skip past '::'. */ |
2201 | *pp = p + 2; | |
2202 | ||
2203 | STABS_CONTINUE (pp, objfile); | |
2204 | p = *pp; | |
2205 | while (*p != '.') | |
2206 | { | |
2207 | *o++ = *p++; | |
2208 | } | |
2209 | main_fn_name = savestring (opname, o - opname); | |
2210 | /* Skip past '.' */ | |
2211 | *pp = p + 1; | |
2212 | } | |
2213 | else | |
2214 | { | |
2215 | main_fn_name = savestring (*pp, p - *pp); | |
2216 | /* Skip past '::'. */ | |
2217 | *pp = p + 2; | |
2218 | } | |
c5aa993b JM |
2219 | new_fnlist->fn_fieldlist.name = main_fn_name; |
2220 | ||
c906108c SS |
2221 | do |
2222 | { | |
2223 | new_sublist = | |
2224 | (struct next_fnfield *) xmalloc (sizeof (struct next_fnfield)); | |
b8c9b27d | 2225 | make_cleanup (xfree, new_sublist); |
c906108c | 2226 | memset (new_sublist, 0, sizeof (struct next_fnfield)); |
c5aa993b | 2227 | |
c906108c SS |
2228 | /* Check for and handle cretinous dbx symbol name continuation! */ |
2229 | if (look_ahead_type == NULL) | |
2230 | { | |
2231 | /* Normal case. */ | |
2232 | STABS_CONTINUE (pp, objfile); | |
c5aa993b JM |
2233 | |
2234 | new_sublist->fn_field.type = read_type (pp, objfile); | |
c906108c SS |
2235 | if (**pp != ':') |
2236 | { | |
2237 | /* Invalid symtab info for member function. */ | |
2238 | return 0; | |
2239 | } | |
2240 | } | |
2241 | else | |
2242 | { | |
2243 | /* g++ version 1 kludge */ | |
c5aa993b | 2244 | new_sublist->fn_field.type = look_ahead_type; |
c906108c SS |
2245 | look_ahead_type = NULL; |
2246 | } | |
c5aa993b | 2247 | |
c906108c SS |
2248 | (*pp)++; |
2249 | p = *pp; | |
2250 | while (*p != ';') | |
2251 | { | |
2252 | p++; | |
2253 | } | |
c5aa993b | 2254 | |
c906108c SS |
2255 | /* If this is just a stub, then we don't have the real name here. */ |
2256 | ||
74a9bb82 | 2257 | if (TYPE_STUB (new_sublist->fn_field.type)) |
c906108c | 2258 | { |
c5aa993b JM |
2259 | if (!TYPE_DOMAIN_TYPE (new_sublist->fn_field.type)) |
2260 | TYPE_DOMAIN_TYPE (new_sublist->fn_field.type) = type; | |
2261 | new_sublist->fn_field.is_stub = 1; | |
c906108c | 2262 | } |
c5aa993b | 2263 | new_sublist->fn_field.physname = savestring (*pp, p - *pp); |
c906108c | 2264 | *pp = p + 1; |
c5aa993b | 2265 | |
c906108c SS |
2266 | /* Set this member function's visibility fields. */ |
2267 | switch (*(*pp)++) | |
2268 | { | |
c5aa993b JM |
2269 | case VISIBILITY_PRIVATE: |
2270 | new_sublist->fn_field.is_private = 1; | |
2271 | break; | |
2272 | case VISIBILITY_PROTECTED: | |
2273 | new_sublist->fn_field.is_protected = 1; | |
2274 | break; | |
c906108c | 2275 | } |
c5aa993b | 2276 | |
c906108c SS |
2277 | STABS_CONTINUE (pp, objfile); |
2278 | switch (**pp) | |
2279 | { | |
c5aa993b JM |
2280 | case 'A': /* Normal functions. */ |
2281 | new_sublist->fn_field.is_const = 0; | |
2282 | new_sublist->fn_field.is_volatile = 0; | |
2283 | (*pp)++; | |
2284 | break; | |
2285 | case 'B': /* `const' member functions. */ | |
2286 | new_sublist->fn_field.is_const = 1; | |
2287 | new_sublist->fn_field.is_volatile = 0; | |
2288 | (*pp)++; | |
2289 | break; | |
2290 | case 'C': /* `volatile' member function. */ | |
2291 | new_sublist->fn_field.is_const = 0; | |
2292 | new_sublist->fn_field.is_volatile = 1; | |
2293 | (*pp)++; | |
2294 | break; | |
2295 | case 'D': /* `const volatile' member function. */ | |
2296 | new_sublist->fn_field.is_const = 1; | |
2297 | new_sublist->fn_field.is_volatile = 1; | |
2298 | (*pp)++; | |
2299 | break; | |
2300 | case '*': /* File compiled with g++ version 1 -- no info */ | |
2301 | case '?': | |
2302 | case '.': | |
2303 | break; | |
2304 | default: | |
23136709 | 2305 | complaint (&symfile_complaints, |
e2e0b3e5 | 2306 | _("const/volatile indicator missing, got '%c'"), **pp); |
c5aa993b | 2307 | break; |
c906108c | 2308 | } |
c5aa993b | 2309 | |
c906108c SS |
2310 | switch (*(*pp)++) |
2311 | { | |
c5aa993b | 2312 | case '*': |
c906108c SS |
2313 | { |
2314 | int nbits; | |
c5aa993b | 2315 | /* virtual member function, followed by index. |
c906108c SS |
2316 | The sign bit is set to distinguish pointers-to-methods |
2317 | from virtual function indicies. Since the array is | |
2318 | in words, the quantity must be shifted left by 1 | |
2319 | on 16 bit machine, and by 2 on 32 bit machine, forcing | |
2320 | the sign bit out, and usable as a valid index into | |
2321 | the array. Remove the sign bit here. */ | |
c5aa993b | 2322 | new_sublist->fn_field.voffset = |
94e10a22 | 2323 | (0x7fffffff & read_huge_number (pp, ';', &nbits, 0)) + 2; |
c906108c SS |
2324 | if (nbits != 0) |
2325 | return 0; | |
c5aa993b | 2326 | |
c906108c SS |
2327 | STABS_CONTINUE (pp, objfile); |
2328 | if (**pp == ';' || **pp == '\0') | |
2329 | { | |
2330 | /* Must be g++ version 1. */ | |
c5aa993b | 2331 | new_sublist->fn_field.fcontext = 0; |
c906108c SS |
2332 | } |
2333 | else | |
2334 | { | |
2335 | /* Figure out from whence this virtual function came. | |
2336 | It may belong to virtual function table of | |
2337 | one of its baseclasses. */ | |
2338 | look_ahead_type = read_type (pp, objfile); | |
2339 | if (**pp == ':') | |
2340 | { | |
2341 | /* g++ version 1 overloaded methods. */ | |
2342 | } | |
2343 | else | |
2344 | { | |
c5aa993b | 2345 | new_sublist->fn_field.fcontext = look_ahead_type; |
c906108c SS |
2346 | if (**pp != ';') |
2347 | { | |
2348 | return 0; | |
2349 | } | |
2350 | else | |
2351 | { | |
2352 | ++*pp; | |
2353 | } | |
2354 | look_ahead_type = NULL; | |
2355 | } | |
2356 | } | |
2357 | break; | |
2358 | } | |
c5aa993b JM |
2359 | case '?': |
2360 | /* static member function. */ | |
4ea09c10 PS |
2361 | { |
2362 | int slen = strlen (main_fn_name); | |
2363 | ||
2364 | new_sublist->fn_field.voffset = VOFFSET_STATIC; | |
2365 | ||
2366 | /* For static member functions, we can't tell if they | |
2367 | are stubbed, as they are put out as functions, and not as | |
2368 | methods. | |
2369 | GCC v2 emits the fully mangled name if | |
2370 | dbxout.c:flag_minimal_debug is not set, so we have to | |
2371 | detect a fully mangled physname here and set is_stub | |
2372 | accordingly. Fully mangled physnames in v2 start with | |
2373 | the member function name, followed by two underscores. | |
2374 | GCC v3 currently always emits stubbed member functions, | |
2375 | but with fully mangled physnames, which start with _Z. */ | |
2376 | if (!(strncmp (new_sublist->fn_field.physname, | |
2377 | main_fn_name, slen) == 0 | |
2378 | && new_sublist->fn_field.physname[slen] == '_' | |
2379 | && new_sublist->fn_field.physname[slen + 1] == '_')) | |
2380 | { | |
2381 | new_sublist->fn_field.is_stub = 1; | |
2382 | } | |
2383 | break; | |
2384 | } | |
c5aa993b JM |
2385 | |
2386 | default: | |
2387 | /* error */ | |
23136709 | 2388 | complaint (&symfile_complaints, |
e2e0b3e5 | 2389 | _("member function type missing, got '%c'"), (*pp)[-1]); |
c5aa993b JM |
2390 | /* Fall through into normal member function. */ |
2391 | ||
2392 | case '.': | |
2393 | /* normal member function. */ | |
2394 | new_sublist->fn_field.voffset = 0; | |
2395 | new_sublist->fn_field.fcontext = 0; | |
2396 | break; | |
c906108c | 2397 | } |
c5aa993b JM |
2398 | |
2399 | new_sublist->next = sublist; | |
c906108c SS |
2400 | sublist = new_sublist; |
2401 | length++; | |
2402 | STABS_CONTINUE (pp, objfile); | |
2403 | } | |
2404 | while (**pp != ';' && **pp != '\0'); | |
c5aa993b | 2405 | |
c906108c | 2406 | (*pp)++; |
0c867556 | 2407 | STABS_CONTINUE (pp, objfile); |
c5aa993b | 2408 | |
0c867556 PS |
2409 | /* Skip GCC 3.X member functions which are duplicates of the callable |
2410 | constructor/destructor. */ | |
2411 | if (strcmp (main_fn_name, "__base_ctor") == 0 | |
2412 | || strcmp (main_fn_name, "__base_dtor") == 0 | |
2413 | || strcmp (main_fn_name, "__deleting_dtor") == 0) | |
c906108c | 2414 | { |
0c867556 | 2415 | xfree (main_fn_name); |
c906108c | 2416 | } |
0c867556 PS |
2417 | else |
2418 | { | |
de17c821 DJ |
2419 | int has_stub = 0; |
2420 | int has_destructor = 0, has_other = 0; | |
2421 | int is_v3 = 0; | |
2422 | struct next_fnfield *tmp_sublist; | |
2423 | ||
2424 | /* Various versions of GCC emit various mostly-useless | |
2425 | strings in the name field for special member functions. | |
2426 | ||
2427 | For stub methods, we need to defer correcting the name | |
2428 | until we are ready to unstub the method, because the current | |
2429 | name string is used by gdb_mangle_name. The only stub methods | |
2430 | of concern here are GNU v2 operators; other methods have their | |
2431 | names correct (see caveat below). | |
2432 | ||
2433 | For non-stub methods, in GNU v3, we have a complete physname. | |
2434 | Therefore we can safely correct the name now. This primarily | |
2435 | affects constructors and destructors, whose name will be | |
2436 | __comp_ctor or __comp_dtor instead of Foo or ~Foo. Cast | |
2437 | operators will also have incorrect names; for instance, | |
2438 | "operator int" will be named "operator i" (i.e. the type is | |
2439 | mangled). | |
2440 | ||
2441 | For non-stub methods in GNU v2, we have no easy way to | |
2442 | know if we have a complete physname or not. For most | |
2443 | methods the result depends on the platform (if CPLUS_MARKER | |
2444 | can be `$' or `.', it will use minimal debug information, or | |
2445 | otherwise the full physname will be included). | |
2446 | ||
2447 | Rather than dealing with this, we take a different approach. | |
2448 | For v3 mangled names, we can use the full physname; for v2, | |
2449 | we use cplus_demangle_opname (which is actually v2 specific), | |
2450 | because the only interesting names are all operators - once again | |
2451 | barring the caveat below. Skip this process if any method in the | |
2452 | group is a stub, to prevent our fouling up the workings of | |
2453 | gdb_mangle_name. | |
2454 | ||
2455 | The caveat: GCC 2.95.x (and earlier?) put constructors and | |
2456 | destructors in the same method group. We need to split this | |
2457 | into two groups, because they should have different names. | |
2458 | So for each method group we check whether it contains both | |
2459 | routines whose physname appears to be a destructor (the physnames | |
2460 | for and destructors are always provided, due to quirks in v2 | |
2461 | mangling) and routines whose physname does not appear to be a | |
2462 | destructor. If so then we break up the list into two halves. | |
2463 | Even if the constructors and destructors aren't in the same group | |
2464 | the destructor will still lack the leading tilde, so that also | |
2465 | needs to be fixed. | |
2466 | ||
2467 | So, to summarize what we expect and handle here: | |
2468 | ||
2469 | Given Given Real Real Action | |
2470 | method name physname physname method name | |
2471 | ||
2472 | __opi [none] __opi__3Foo operator int opname | |
2473 | [now or later] | |
2474 | Foo _._3Foo _._3Foo ~Foo separate and | |
2475 | rename | |
2476 | operator i _ZN3FoocviEv _ZN3FoocviEv operator int demangle | |
2477 | __comp_ctor _ZN3FooC1ERKS_ _ZN3FooC1ERKS_ Foo demangle | |
2478 | */ | |
2479 | ||
2480 | tmp_sublist = sublist; | |
2481 | while (tmp_sublist != NULL) | |
2482 | { | |
2483 | if (tmp_sublist->fn_field.is_stub) | |
2484 | has_stub = 1; | |
2485 | if (tmp_sublist->fn_field.physname[0] == '_' | |
2486 | && tmp_sublist->fn_field.physname[1] == 'Z') | |
2487 | is_v3 = 1; | |
2488 | ||
2489 | if (is_destructor_name (tmp_sublist->fn_field.physname)) | |
2490 | has_destructor++; | |
2491 | else | |
2492 | has_other++; | |
2493 | ||
2494 | tmp_sublist = tmp_sublist->next; | |
2495 | } | |
2496 | ||
2497 | if (has_destructor && has_other) | |
2498 | { | |
2499 | struct next_fnfieldlist *destr_fnlist; | |
2500 | struct next_fnfield *last_sublist; | |
2501 | ||
2502 | /* Create a new fn_fieldlist for the destructors. */ | |
2503 | ||
2504 | destr_fnlist = (struct next_fnfieldlist *) | |
2505 | xmalloc (sizeof (struct next_fnfieldlist)); | |
2506 | make_cleanup (xfree, destr_fnlist); | |
2507 | memset (destr_fnlist, 0, sizeof (struct next_fnfieldlist)); | |
2508 | destr_fnlist->fn_fieldlist.name | |
b99607ea | 2509 | = obconcat (&objfile->objfile_obstack, "", "~", |
de17c821 DJ |
2510 | new_fnlist->fn_fieldlist.name); |
2511 | ||
2512 | destr_fnlist->fn_fieldlist.fn_fields = (struct fn_field *) | |
b99607ea | 2513 | obstack_alloc (&objfile->objfile_obstack, |
de17c821 DJ |
2514 | sizeof (struct fn_field) * has_destructor); |
2515 | memset (destr_fnlist->fn_fieldlist.fn_fields, 0, | |
2516 | sizeof (struct fn_field) * has_destructor); | |
2517 | tmp_sublist = sublist; | |
2518 | last_sublist = NULL; | |
2519 | i = 0; | |
2520 | while (tmp_sublist != NULL) | |
2521 | { | |
2522 | if (!is_destructor_name (tmp_sublist->fn_field.physname)) | |
2523 | { | |
2524 | tmp_sublist = tmp_sublist->next; | |
2525 | continue; | |
2526 | } | |
2527 | ||
2528 | destr_fnlist->fn_fieldlist.fn_fields[i++] | |
2529 | = tmp_sublist->fn_field; | |
2530 | if (last_sublist) | |
2531 | last_sublist->next = tmp_sublist->next; | |
2532 | else | |
2533 | sublist = tmp_sublist->next; | |
2534 | last_sublist = tmp_sublist; | |
2535 | tmp_sublist = tmp_sublist->next; | |
2536 | } | |
2537 | ||
2538 | destr_fnlist->fn_fieldlist.length = has_destructor; | |
2539 | destr_fnlist->next = fip->fnlist; | |
2540 | fip->fnlist = destr_fnlist; | |
2541 | nfn_fields++; | |
2542 | total_length += has_destructor; | |
2543 | length -= has_destructor; | |
2544 | } | |
2545 | else if (is_v3) | |
2546 | { | |
2547 | /* v3 mangling prevents the use of abbreviated physnames, | |
2548 | so we can do this here. There are stubbed methods in v3 | |
2549 | only: | |
2550 | - in -gstabs instead of -gstabs+ | |
2551 | - or for static methods, which are output as a function type | |
2552 | instead of a method type. */ | |
2553 | ||
2554 | update_method_name_from_physname (&new_fnlist->fn_fieldlist.name, | |
2555 | sublist->fn_field.physname); | |
2556 | } | |
2557 | else if (has_destructor && new_fnlist->fn_fieldlist.name[0] != '~') | |
2558 | { | |
1754f103 MK |
2559 | new_fnlist->fn_fieldlist.name = |
2560 | concat ("~", main_fn_name, (char *)NULL); | |
de17c821 DJ |
2561 | xfree (main_fn_name); |
2562 | } | |
2563 | else if (!has_stub) | |
2564 | { | |
2565 | char dem_opname[256]; | |
2566 | int ret; | |
2567 | ret = cplus_demangle_opname (new_fnlist->fn_fieldlist.name, | |
2568 | dem_opname, DMGL_ANSI); | |
2569 | if (!ret) | |
2570 | ret = cplus_demangle_opname (new_fnlist->fn_fieldlist.name, | |
2571 | dem_opname, 0); | |
2572 | if (ret) | |
2573 | new_fnlist->fn_fieldlist.name | |
2574 | = obsavestring (dem_opname, strlen (dem_opname), | |
b99607ea | 2575 | &objfile->objfile_obstack); |
de17c821 DJ |
2576 | } |
2577 | ||
0c867556 | 2578 | new_fnlist->fn_fieldlist.fn_fields = (struct fn_field *) |
b99607ea | 2579 | obstack_alloc (&objfile->objfile_obstack, |
0c867556 PS |
2580 | sizeof (struct fn_field) * length); |
2581 | memset (new_fnlist->fn_fieldlist.fn_fields, 0, | |
2582 | sizeof (struct fn_field) * length); | |
2583 | for (i = length; (i--, sublist); sublist = sublist->next) | |
2584 | { | |
2585 | new_fnlist->fn_fieldlist.fn_fields[i] = sublist->fn_field; | |
2586 | } | |
c5aa993b | 2587 | |
0c867556 PS |
2588 | new_fnlist->fn_fieldlist.length = length; |
2589 | new_fnlist->next = fip->fnlist; | |
2590 | fip->fnlist = new_fnlist; | |
2591 | nfn_fields++; | |
2592 | total_length += length; | |
2593 | } | |
c906108c SS |
2594 | } |
2595 | ||
2596 | if (nfn_fields) | |
2597 | { | |
2598 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
2599 | TYPE_FN_FIELDLISTS (type) = (struct fn_fieldlist *) | |
2600 | TYPE_ALLOC (type, sizeof (struct fn_fieldlist) * nfn_fields); | |
2601 | memset (TYPE_FN_FIELDLISTS (type), 0, | |
2602 | sizeof (struct fn_fieldlist) * nfn_fields); | |
2603 | TYPE_NFN_FIELDS (type) = nfn_fields; | |
2604 | TYPE_NFN_FIELDS_TOTAL (type) = total_length; | |
2605 | } | |
2606 | ||
2607 | return 1; | |
2608 | } | |
2609 | ||
2610 | /* Special GNU C++ name. | |
2611 | ||
2612 | Returns 1 for success, 0 for failure. "failure" means that we can't | |
2613 | keep parsing and it's time for error_type(). */ | |
2614 | ||
2615 | static int | |
fba45db2 KB |
2616 | read_cpp_abbrev (struct field_info *fip, char **pp, struct type *type, |
2617 | struct objfile *objfile) | |
c906108c | 2618 | { |
52f0bd74 | 2619 | char *p; |
c906108c SS |
2620 | char *name; |
2621 | char cpp_abbrev; | |
2622 | struct type *context; | |
2623 | ||
2624 | p = *pp; | |
2625 | if (*++p == 'v') | |
2626 | { | |
2627 | name = NULL; | |
2628 | cpp_abbrev = *++p; | |
2629 | ||
2630 | *pp = p + 1; | |
2631 | ||
2632 | /* At this point, *pp points to something like "22:23=*22...", | |
c5aa993b JM |
2633 | where the type number before the ':' is the "context" and |
2634 | everything after is a regular type definition. Lookup the | |
2635 | type, find it's name, and construct the field name. */ | |
c906108c SS |
2636 | |
2637 | context = read_type (pp, objfile); | |
2638 | ||
2639 | switch (cpp_abbrev) | |
2640 | { | |
c5aa993b | 2641 | case 'f': /* $vf -- a virtual function table pointer */ |
c2bd2ed9 JB |
2642 | name = type_name_no_tag (context); |
2643 | if (name == NULL) | |
2644 | { | |
2645 | name = ""; | |
2646 | } | |
c5aa993b | 2647 | fip->list->field.name = |
b99607ea | 2648 | obconcat (&objfile->objfile_obstack, vptr_name, name, ""); |
c5aa993b | 2649 | break; |
c906108c | 2650 | |
c5aa993b JM |
2651 | case 'b': /* $vb -- a virtual bsomethingorother */ |
2652 | name = type_name_no_tag (context); | |
2653 | if (name == NULL) | |
2654 | { | |
23136709 | 2655 | complaint (&symfile_complaints, |
e2e0b3e5 | 2656 | _("C++ abbreviated type name unknown at symtab pos %d"), |
23136709 | 2657 | symnum); |
c5aa993b JM |
2658 | name = "FOO"; |
2659 | } | |
2660 | fip->list->field.name = | |
b99607ea | 2661 | obconcat (&objfile->objfile_obstack, vb_name, name, ""); |
c5aa993b | 2662 | break; |
c906108c | 2663 | |
c5aa993b | 2664 | default: |
23136709 | 2665 | invalid_cpp_abbrev_complaint (*pp); |
c5aa993b | 2666 | fip->list->field.name = |
b99607ea | 2667 | obconcat (&objfile->objfile_obstack, |
c5aa993b JM |
2668 | "INVALID_CPLUSPLUS_ABBREV", "", ""); |
2669 | break; | |
c906108c SS |
2670 | } |
2671 | ||
2672 | /* At this point, *pp points to the ':'. Skip it and read the | |
c5aa993b | 2673 | field type. */ |
c906108c SS |
2674 | |
2675 | p = ++(*pp); | |
2676 | if (p[-1] != ':') | |
2677 | { | |
23136709 | 2678 | invalid_cpp_abbrev_complaint (*pp); |
c906108c SS |
2679 | return 0; |
2680 | } | |
2681 | fip->list->field.type = read_type (pp, objfile); | |
2682 | if (**pp == ',') | |
c5aa993b | 2683 | (*pp)++; /* Skip the comma. */ |
c906108c SS |
2684 | else |
2685 | return 0; | |
2686 | ||
2687 | { | |
2688 | int nbits; | |
94e10a22 JG |
2689 | FIELD_BITPOS (fip->list->field) = read_huge_number (pp, ';', &nbits, |
2690 | 0); | |
c906108c SS |
2691 | if (nbits != 0) |
2692 | return 0; | |
2693 | } | |
2694 | /* This field is unpacked. */ | |
2695 | FIELD_BITSIZE (fip->list->field) = 0; | |
2696 | fip->list->visibility = VISIBILITY_PRIVATE; | |
2697 | } | |
2698 | else | |
2699 | { | |
23136709 | 2700 | invalid_cpp_abbrev_complaint (*pp); |
c906108c | 2701 | /* We have no idea what syntax an unrecognized abbrev would have, so |
c5aa993b JM |
2702 | better return 0. If we returned 1, we would need to at least advance |
2703 | *pp to avoid an infinite loop. */ | |
c906108c SS |
2704 | return 0; |
2705 | } | |
2706 | return 1; | |
2707 | } | |
2708 | ||
2709 | static void | |
fba45db2 KB |
2710 | read_one_struct_field (struct field_info *fip, char **pp, char *p, |
2711 | struct type *type, struct objfile *objfile) | |
c906108c | 2712 | { |
5e2b427d UW |
2713 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
2714 | ||
41989fcd | 2715 | fip->list->field.name = |
b99607ea | 2716 | obsavestring (*pp, p - *pp, &objfile->objfile_obstack); |
c906108c SS |
2717 | *pp = p + 1; |
2718 | ||
2719 | /* This means we have a visibility for a field coming. */ | |
2720 | if (**pp == '/') | |
2721 | { | |
2722 | (*pp)++; | |
c5aa993b | 2723 | fip->list->visibility = *(*pp)++; |
c906108c SS |
2724 | } |
2725 | else | |
2726 | { | |
2727 | /* normal dbx-style format, no explicit visibility */ | |
c5aa993b | 2728 | fip->list->visibility = VISIBILITY_PUBLIC; |
c906108c SS |
2729 | } |
2730 | ||
c5aa993b | 2731 | fip->list->field.type = read_type (pp, objfile); |
c906108c SS |
2732 | if (**pp == ':') |
2733 | { | |
2734 | p = ++(*pp); | |
2735 | #if 0 | |
2736 | /* Possible future hook for nested types. */ | |
2737 | if (**pp == '!') | |
2738 | { | |
c5aa993b | 2739 | fip->list->field.bitpos = (long) -2; /* nested type */ |
c906108c SS |
2740 | p = ++(*pp); |
2741 | } | |
c5aa993b JM |
2742 | else |
2743 | ...; | |
c906108c | 2744 | #endif |
c5aa993b | 2745 | while (*p != ';') |
c906108c SS |
2746 | { |
2747 | p++; | |
2748 | } | |
2749 | /* Static class member. */ | |
2750 | SET_FIELD_PHYSNAME (fip->list->field, savestring (*pp, p - *pp)); | |
2751 | *pp = p + 1; | |
2752 | return; | |
2753 | } | |
2754 | else if (**pp != ',') | |
2755 | { | |
2756 | /* Bad structure-type format. */ | |
23136709 | 2757 | stabs_general_complaint ("bad structure-type format"); |
c906108c SS |
2758 | return; |
2759 | } | |
2760 | ||
2761 | (*pp)++; /* Skip the comma. */ | |
2762 | ||
2763 | { | |
2764 | int nbits; | |
94e10a22 | 2765 | FIELD_BITPOS (fip->list->field) = read_huge_number (pp, ',', &nbits, 0); |
c906108c SS |
2766 | if (nbits != 0) |
2767 | { | |
23136709 | 2768 | stabs_general_complaint ("bad structure-type format"); |
c906108c SS |
2769 | return; |
2770 | } | |
94e10a22 | 2771 | FIELD_BITSIZE (fip->list->field) = read_huge_number (pp, ';', &nbits, 0); |
c906108c SS |
2772 | if (nbits != 0) |
2773 | { | |
23136709 | 2774 | stabs_general_complaint ("bad structure-type format"); |
c906108c SS |
2775 | return; |
2776 | } | |
2777 | } | |
2778 | ||
2779 | if (FIELD_BITPOS (fip->list->field) == 0 | |
2780 | && FIELD_BITSIZE (fip->list->field) == 0) | |
2781 | { | |
2782 | /* This can happen in two cases: (1) at least for gcc 2.4.5 or so, | |
c5aa993b JM |
2783 | it is a field which has been optimized out. The correct stab for |
2784 | this case is to use VISIBILITY_IGNORE, but that is a recent | |
2785 | invention. (2) It is a 0-size array. For example | |
e2e0b3e5 | 2786 | union { int num; char str[0]; } foo. Printing _("<no value>" for |
c5aa993b JM |
2787 | str in "p foo" is OK, since foo.str (and thus foo.str[3]) |
2788 | will continue to work, and a 0-size array as a whole doesn't | |
2789 | have any contents to print. | |
2790 | ||
2791 | I suspect this probably could also happen with gcc -gstabs (not | |
2792 | -gstabs+) for static fields, and perhaps other C++ extensions. | |
2793 | Hopefully few people use -gstabs with gdb, since it is intended | |
2794 | for dbx compatibility. */ | |
c906108c SS |
2795 | |
2796 | /* Ignore this field. */ | |
c5aa993b | 2797 | fip->list->visibility = VISIBILITY_IGNORE; |
c906108c SS |
2798 | } |
2799 | else | |
2800 | { | |
2801 | /* Detect an unpacked field and mark it as such. | |
c5aa993b JM |
2802 | dbx gives a bit size for all fields. |
2803 | Note that forward refs cannot be packed, | |
2804 | and treat enums as if they had the width of ints. */ | |
c906108c SS |
2805 | |
2806 | struct type *field_type = check_typedef (FIELD_TYPE (fip->list->field)); | |
2807 | ||
2808 | if (TYPE_CODE (field_type) != TYPE_CODE_INT | |
2809 | && TYPE_CODE (field_type) != TYPE_CODE_RANGE | |
2810 | && TYPE_CODE (field_type) != TYPE_CODE_BOOL | |
2811 | && TYPE_CODE (field_type) != TYPE_CODE_ENUM) | |
2812 | { | |
2813 | FIELD_BITSIZE (fip->list->field) = 0; | |
2814 | } | |
c5aa993b | 2815 | if ((FIELD_BITSIZE (fip->list->field) |
c906108c SS |
2816 | == TARGET_CHAR_BIT * TYPE_LENGTH (field_type) |
2817 | || (TYPE_CODE (field_type) == TYPE_CODE_ENUM | |
9a76efb6 | 2818 | && FIELD_BITSIZE (fip->list->field) |
5e2b427d | 2819 | == gdbarch_int_bit (gdbarch)) |
c5aa993b | 2820 | ) |
c906108c SS |
2821 | && |
2822 | FIELD_BITPOS (fip->list->field) % 8 == 0) | |
2823 | { | |
2824 | FIELD_BITSIZE (fip->list->field) = 0; | |
2825 | } | |
2826 | } | |
2827 | } | |
2828 | ||
2829 | ||
2830 | /* Read struct or class data fields. They have the form: | |
2831 | ||
c5aa993b | 2832 | NAME : [VISIBILITY] TYPENUM , BITPOS , BITSIZE ; |
c906108c SS |
2833 | |
2834 | At the end, we see a semicolon instead of a field. | |
2835 | ||
2836 | In C++, this may wind up being NAME:?TYPENUM:PHYSNAME; for | |
2837 | a static field. | |
2838 | ||
2839 | The optional VISIBILITY is one of: | |
2840 | ||
c5aa993b JM |
2841 | '/0' (VISIBILITY_PRIVATE) |
2842 | '/1' (VISIBILITY_PROTECTED) | |
2843 | '/2' (VISIBILITY_PUBLIC) | |
2844 | '/9' (VISIBILITY_IGNORE) | |
c906108c SS |
2845 | |
2846 | or nothing, for C style fields with public visibility. | |
2847 | ||
2848 | Returns 1 for success, 0 for failure. */ | |
2849 | ||
2850 | static int | |
fba45db2 KB |
2851 | read_struct_fields (struct field_info *fip, char **pp, struct type *type, |
2852 | struct objfile *objfile) | |
c906108c | 2853 | { |
52f0bd74 | 2854 | char *p; |
c906108c SS |
2855 | struct nextfield *new; |
2856 | ||
2857 | /* We better set p right now, in case there are no fields at all... */ | |
2858 | ||
2859 | p = *pp; | |
2860 | ||
2861 | /* Read each data member type until we find the terminating ';' at the end of | |
2862 | the data member list, or break for some other reason such as finding the | |
2863 | start of the member function list. */ | |
fedbd091 EZ |
2864 | /* Stab string for structure/union does not end with two ';' in |
2865 | SUN C compiler 5.3 i.e. F6U2, hence check for end of string. */ | |
c906108c | 2866 | |
fedbd091 | 2867 | while (**pp != ';' && **pp != '\0') |
c906108c | 2868 | { |
c906108c SS |
2869 | STABS_CONTINUE (pp, objfile); |
2870 | /* Get space to record the next field's data. */ | |
2871 | new = (struct nextfield *) xmalloc (sizeof (struct nextfield)); | |
b8c9b27d | 2872 | make_cleanup (xfree, new); |
c906108c | 2873 | memset (new, 0, sizeof (struct nextfield)); |
c5aa993b JM |
2874 | new->next = fip->list; |
2875 | fip->list = new; | |
c906108c SS |
2876 | |
2877 | /* Get the field name. */ | |
2878 | p = *pp; | |
2879 | ||
2880 | /* If is starts with CPLUS_MARKER it is a special abbreviation, | |
c5aa993b JM |
2881 | unless the CPLUS_MARKER is followed by an underscore, in |
2882 | which case it is just the name of an anonymous type, which we | |
2883 | should handle like any other type name. */ | |
c906108c SS |
2884 | |
2885 | if (is_cplus_marker (p[0]) && p[1] != '_') | |
2886 | { | |
2887 | if (!read_cpp_abbrev (fip, pp, type, objfile)) | |
2888 | return 0; | |
2889 | continue; | |
2890 | } | |
2891 | ||
2892 | /* Look for the ':' that separates the field name from the field | |
c5aa993b JM |
2893 | values. Data members are delimited by a single ':', while member |
2894 | functions are delimited by a pair of ':'s. When we hit the member | |
2895 | functions (if any), terminate scan loop and return. */ | |
c906108c | 2896 | |
c5aa993b | 2897 | while (*p != ':' && *p != '\0') |
c906108c SS |
2898 | { |
2899 | p++; | |
2900 | } | |
2901 | if (*p == '\0') | |
2902 | return 0; | |
2903 | ||
2904 | /* Check to see if we have hit the member functions yet. */ | |
2905 | if (p[1] == ':') | |
2906 | { | |
2907 | break; | |
2908 | } | |
2909 | read_one_struct_field (fip, pp, p, type, objfile); | |
2910 | } | |
2911 | if (p[0] == ':' && p[1] == ':') | |
2912 | { | |
1b831c93 AC |
2913 | /* (the deleted) chill the list of fields: the last entry (at |
2914 | the head) is a partially constructed entry which we now | |
2915 | scrub. */ | |
c5aa993b | 2916 | fip->list = fip->list->next; |
c906108c SS |
2917 | } |
2918 | return 1; | |
2919 | } | |
9846de1b | 2920 | /* *INDENT-OFF* */ |
c906108c SS |
2921 | /* The stabs for C++ derived classes contain baseclass information which |
2922 | is marked by a '!' character after the total size. This function is | |
2923 | called when we encounter the baseclass marker, and slurps up all the | |
2924 | baseclass information. | |
2925 | ||
2926 | Immediately following the '!' marker is the number of base classes that | |
2927 | the class is derived from, followed by information for each base class. | |
2928 | For each base class, there are two visibility specifiers, a bit offset | |
2929 | to the base class information within the derived class, a reference to | |
2930 | the type for the base class, and a terminating semicolon. | |
2931 | ||
2932 | A typical example, with two base classes, would be "!2,020,19;0264,21;". | |
2933 | ^^ ^ ^ ^ ^ ^ ^ | |
2934 | Baseclass information marker __________________|| | | | | | | | |
2935 | Number of baseclasses __________________________| | | | | | | | |
2936 | Visibility specifiers (2) ________________________| | | | | | | |
2937 | Offset in bits from start of class _________________| | | | | | |
2938 | Type number for base class ___________________________| | | | | |
2939 | Visibility specifiers (2) _______________________________| | | | |
2940 | Offset in bits from start of class ________________________| | | |
2941 | Type number of base class ____________________________________| | |
2942 | ||
2943 | Return 1 for success, 0 for (error-type-inducing) failure. */ | |
9846de1b | 2944 | /* *INDENT-ON* */ |
c906108c | 2945 | |
c5aa993b JM |
2946 | |
2947 | ||
c906108c | 2948 | static int |
fba45db2 KB |
2949 | read_baseclasses (struct field_info *fip, char **pp, struct type *type, |
2950 | struct objfile *objfile) | |
c906108c SS |
2951 | { |
2952 | int i; | |
2953 | struct nextfield *new; | |
2954 | ||
2955 | if (**pp != '!') | |
2956 | { | |
2957 | return 1; | |
2958 | } | |
2959 | else | |
2960 | { | |
2961 | /* Skip the '!' baseclass information marker. */ | |
2962 | (*pp)++; | |
2963 | } | |
2964 | ||
2965 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
2966 | { | |
2967 | int nbits; | |
94e10a22 | 2968 | TYPE_N_BASECLASSES (type) = read_huge_number (pp, ',', &nbits, 0); |
c906108c SS |
2969 | if (nbits != 0) |
2970 | return 0; | |
2971 | } | |
2972 | ||
2973 | #if 0 | |
2974 | /* Some stupid compilers have trouble with the following, so break | |
2975 | it up into simpler expressions. */ | |
2976 | TYPE_FIELD_VIRTUAL_BITS (type) = (B_TYPE *) | |
2977 | TYPE_ALLOC (type, B_BYTES (TYPE_N_BASECLASSES (type))); | |
2978 | #else | |
2979 | { | |
2980 | int num_bytes = B_BYTES (TYPE_N_BASECLASSES (type)); | |
2981 | char *pointer; | |
2982 | ||
2983 | pointer = (char *) TYPE_ALLOC (type, num_bytes); | |
2984 | TYPE_FIELD_VIRTUAL_BITS (type) = (B_TYPE *) pointer; | |
2985 | } | |
2986 | #endif /* 0 */ | |
2987 | ||
2988 | B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type), TYPE_N_BASECLASSES (type)); | |
2989 | ||
2990 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) | |
2991 | { | |
2992 | new = (struct nextfield *) xmalloc (sizeof (struct nextfield)); | |
b8c9b27d | 2993 | make_cleanup (xfree, new); |
c906108c | 2994 | memset (new, 0, sizeof (struct nextfield)); |
c5aa993b JM |
2995 | new->next = fip->list; |
2996 | fip->list = new; | |
c906108c SS |
2997 | FIELD_BITSIZE (new->field) = 0; /* this should be an unpacked field! */ |
2998 | ||
2999 | STABS_CONTINUE (pp, objfile); | |
3000 | switch (**pp) | |
3001 | { | |
c5aa993b JM |
3002 | case '0': |
3003 | /* Nothing to do. */ | |
3004 | break; | |
3005 | case '1': | |
3006 | SET_TYPE_FIELD_VIRTUAL (type, i); | |
3007 | break; | |
3008 | default: | |
3009 | /* Unknown character. Complain and treat it as non-virtual. */ | |
3010 | { | |
23136709 | 3011 | complaint (&symfile_complaints, |
e2e0b3e5 | 3012 | _("Unknown virtual character `%c' for baseclass"), **pp); |
c5aa993b | 3013 | } |
c906108c SS |
3014 | } |
3015 | ++(*pp); | |
3016 | ||
c5aa993b JM |
3017 | new->visibility = *(*pp)++; |
3018 | switch (new->visibility) | |
c906108c | 3019 | { |
c5aa993b JM |
3020 | case VISIBILITY_PRIVATE: |
3021 | case VISIBILITY_PROTECTED: | |
3022 | case VISIBILITY_PUBLIC: | |
3023 | break; | |
3024 | default: | |
3025 | /* Bad visibility format. Complain and treat it as | |
3026 | public. */ | |
3027 | { | |
23136709 | 3028 | complaint (&symfile_complaints, |
e2e0b3e5 | 3029 | _("Unknown visibility `%c' for baseclass"), |
23136709 | 3030 | new->visibility); |
c5aa993b JM |
3031 | new->visibility = VISIBILITY_PUBLIC; |
3032 | } | |
c906108c SS |
3033 | } |
3034 | ||
3035 | { | |
3036 | int nbits; | |
c5aa993b | 3037 | |
c906108c SS |
3038 | /* The remaining value is the bit offset of the portion of the object |
3039 | corresponding to this baseclass. Always zero in the absence of | |
3040 | multiple inheritance. */ | |
3041 | ||
94e10a22 | 3042 | FIELD_BITPOS (new->field) = read_huge_number (pp, ',', &nbits, 0); |
c906108c SS |
3043 | if (nbits != 0) |
3044 | return 0; | |
3045 | } | |
3046 | ||
3047 | /* The last piece of baseclass information is the type of the | |
c5aa993b JM |
3048 | base class. Read it, and remember it's type name as this |
3049 | field's name. */ | |
c906108c | 3050 | |
c5aa993b JM |
3051 | new->field.type = read_type (pp, objfile); |
3052 | new->field.name = type_name_no_tag (new->field.type); | |
c906108c SS |
3053 | |
3054 | /* skip trailing ';' and bump count of number of fields seen */ | |
3055 | if (**pp == ';') | |
3056 | (*pp)++; | |
3057 | else | |
3058 | return 0; | |
3059 | } | |
3060 | return 1; | |
3061 | } | |
3062 | ||
3063 | /* The tail end of stabs for C++ classes that contain a virtual function | |
3064 | pointer contains a tilde, a %, and a type number. | |
3065 | The type number refers to the base class (possibly this class itself) which | |
3066 | contains the vtable pointer for the current class. | |
3067 | ||
3068 | This function is called when we have parsed all the method declarations, | |
3069 | so we can look for the vptr base class info. */ | |
3070 | ||
3071 | static int | |
fba45db2 KB |
3072 | read_tilde_fields (struct field_info *fip, char **pp, struct type *type, |
3073 | struct objfile *objfile) | |
c906108c | 3074 | { |
52f0bd74 | 3075 | char *p; |
c906108c SS |
3076 | |
3077 | STABS_CONTINUE (pp, objfile); | |
3078 | ||
3079 | /* If we are positioned at a ';', then skip it. */ | |
3080 | if (**pp == ';') | |
3081 | { | |
3082 | (*pp)++; | |
3083 | } | |
3084 | ||
3085 | if (**pp == '~') | |
3086 | { | |
3087 | (*pp)++; | |
3088 | ||
3089 | if (**pp == '=' || **pp == '+' || **pp == '-') | |
3090 | { | |
3091 | /* Obsolete flags that used to indicate the presence | |
3092 | of constructors and/or destructors. */ | |
3093 | (*pp)++; | |
3094 | } | |
3095 | ||
3096 | /* Read either a '%' or the final ';'. */ | |
3097 | if (*(*pp)++ == '%') | |
3098 | { | |
3099 | /* The next number is the type number of the base class | |
3100 | (possibly our own class) which supplies the vtable for | |
3101 | this class. Parse it out, and search that class to find | |
3102 | its vtable pointer, and install those into TYPE_VPTR_BASETYPE | |
3103 | and TYPE_VPTR_FIELDNO. */ | |
3104 | ||
3105 | struct type *t; | |
3106 | int i; | |
3107 | ||
3108 | t = read_type (pp, objfile); | |
3109 | p = (*pp)++; | |
3110 | while (*p != '\0' && *p != ';') | |
3111 | { | |
3112 | p++; | |
3113 | } | |
3114 | if (*p == '\0') | |
3115 | { | |
3116 | /* Premature end of symbol. */ | |
3117 | return 0; | |
3118 | } | |
c5aa993b | 3119 | |
c906108c | 3120 | TYPE_VPTR_BASETYPE (type) = t; |
c5aa993b | 3121 | if (type == t) /* Our own class provides vtbl ptr */ |
c906108c SS |
3122 | { |
3123 | for (i = TYPE_NFIELDS (t) - 1; | |
3124 | i >= TYPE_N_BASECLASSES (t); | |
3125 | --i) | |
3126 | { | |
8343f86c DJ |
3127 | char *name = TYPE_FIELD_NAME (t, i); |
3128 | if (!strncmp (name, vptr_name, sizeof (vptr_name) - 2) | |
74451869 | 3129 | && is_cplus_marker (name[sizeof (vptr_name) - 2])) |
c906108c SS |
3130 | { |
3131 | TYPE_VPTR_FIELDNO (type) = i; | |
3132 | goto gotit; | |
3133 | } | |
3134 | } | |
3135 | /* Virtual function table field not found. */ | |
23136709 | 3136 | complaint (&symfile_complaints, |
e2e0b3e5 | 3137 | _("virtual function table pointer not found when defining class `%s'"), |
23136709 | 3138 | TYPE_NAME (type)); |
c906108c SS |
3139 | return 0; |
3140 | } | |
3141 | else | |
3142 | { | |
3143 | TYPE_VPTR_FIELDNO (type) = TYPE_VPTR_FIELDNO (t); | |
3144 | } | |
3145 | ||
c5aa993b | 3146 | gotit: |
c906108c SS |
3147 | *pp = p + 1; |
3148 | } | |
3149 | } | |
3150 | return 1; | |
3151 | } | |
3152 | ||
3153 | static int | |
aa1ee363 | 3154 | attach_fn_fields_to_type (struct field_info *fip, struct type *type) |
c906108c | 3155 | { |
52f0bd74 | 3156 | int n; |
c906108c SS |
3157 | |
3158 | for (n = TYPE_NFN_FIELDS (type); | |
c5aa993b JM |
3159 | fip->fnlist != NULL; |
3160 | fip->fnlist = fip->fnlist->next) | |
c906108c | 3161 | { |
c5aa993b JM |
3162 | --n; /* Circumvent Sun3 compiler bug */ |
3163 | TYPE_FN_FIELDLISTS (type)[n] = fip->fnlist->fn_fieldlist; | |
c906108c SS |
3164 | } |
3165 | return 1; | |
3166 | } | |
3167 | ||
c906108c SS |
3168 | /* Create the vector of fields, and record how big it is. |
3169 | We need this info to record proper virtual function table information | |
3170 | for this class's virtual functions. */ | |
3171 | ||
3172 | static int | |
aa1ee363 | 3173 | attach_fields_to_type (struct field_info *fip, struct type *type, |
fba45db2 | 3174 | struct objfile *objfile) |
c906108c | 3175 | { |
52f0bd74 AC |
3176 | int nfields = 0; |
3177 | int non_public_fields = 0; | |
3178 | struct nextfield *scan; | |
c906108c SS |
3179 | |
3180 | /* Count up the number of fields that we have, as well as taking note of | |
3181 | whether or not there are any non-public fields, which requires us to | |
3182 | allocate and build the private_field_bits and protected_field_bits | |
3183 | bitfields. */ | |
3184 | ||
c5aa993b | 3185 | for (scan = fip->list; scan != NULL; scan = scan->next) |
c906108c SS |
3186 | { |
3187 | nfields++; | |
c5aa993b | 3188 | if (scan->visibility != VISIBILITY_PUBLIC) |
c906108c SS |
3189 | { |
3190 | non_public_fields++; | |
3191 | } | |
3192 | } | |
3193 | ||
3194 | /* Now we know how many fields there are, and whether or not there are any | |
3195 | non-public fields. Record the field count, allocate space for the | |
3196 | array of fields, and create blank visibility bitfields if necessary. */ | |
3197 | ||
3198 | TYPE_NFIELDS (type) = nfields; | |
3199 | TYPE_FIELDS (type) = (struct field *) | |
3200 | TYPE_ALLOC (type, sizeof (struct field) * nfields); | |
3201 | memset (TYPE_FIELDS (type), 0, sizeof (struct field) * nfields); | |
3202 | ||
3203 | if (non_public_fields) | |
3204 | { | |
3205 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
3206 | ||
3207 | TYPE_FIELD_PRIVATE_BITS (type) = | |
3208 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); | |
3209 | B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type), nfields); | |
3210 | ||
3211 | TYPE_FIELD_PROTECTED_BITS (type) = | |
3212 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); | |
3213 | B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type), nfields); | |
3214 | ||
3215 | TYPE_FIELD_IGNORE_BITS (type) = | |
3216 | (B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields)); | |
3217 | B_CLRALL (TYPE_FIELD_IGNORE_BITS (type), nfields); | |
3218 | } | |
3219 | ||
3220 | /* Copy the saved-up fields into the field vector. Start from the head | |
3221 | of the list, adding to the tail of the field array, so that they end | |
3222 | up in the same order in the array in which they were added to the list. */ | |
3223 | ||
3224 | while (nfields-- > 0) | |
3225 | { | |
c5aa993b JM |
3226 | TYPE_FIELD (type, nfields) = fip->list->field; |
3227 | switch (fip->list->visibility) | |
c906108c | 3228 | { |
c5aa993b JM |
3229 | case VISIBILITY_PRIVATE: |
3230 | SET_TYPE_FIELD_PRIVATE (type, nfields); | |
3231 | break; | |
c906108c | 3232 | |
c5aa993b JM |
3233 | case VISIBILITY_PROTECTED: |
3234 | SET_TYPE_FIELD_PROTECTED (type, nfields); | |
3235 | break; | |
c906108c | 3236 | |
c5aa993b JM |
3237 | case VISIBILITY_IGNORE: |
3238 | SET_TYPE_FIELD_IGNORE (type, nfields); | |
3239 | break; | |
c906108c | 3240 | |
c5aa993b JM |
3241 | case VISIBILITY_PUBLIC: |
3242 | break; | |
c906108c | 3243 | |
c5aa993b JM |
3244 | default: |
3245 | /* Unknown visibility. Complain and treat it as public. */ | |
3246 | { | |
e2e0b3e5 | 3247 | complaint (&symfile_complaints, _("Unknown visibility `%c' for field"), |
23136709 | 3248 | fip->list->visibility); |
c5aa993b JM |
3249 | } |
3250 | break; | |
c906108c | 3251 | } |
c5aa993b | 3252 | fip->list = fip->list->next; |
c906108c SS |
3253 | } |
3254 | return 1; | |
3255 | } | |
3256 | ||
2ae1c2d2 | 3257 | |
2ae1c2d2 JB |
3258 | /* Complain that the compiler has emitted more than one definition for the |
3259 | structure type TYPE. */ | |
3260 | static void | |
3261 | complain_about_struct_wipeout (struct type *type) | |
3262 | { | |
3263 | char *name = ""; | |
3264 | char *kind = ""; | |
3265 | ||
3266 | if (TYPE_TAG_NAME (type)) | |
3267 | { | |
3268 | name = TYPE_TAG_NAME (type); | |
3269 | switch (TYPE_CODE (type)) | |
3270 | { | |
3271 | case TYPE_CODE_STRUCT: kind = "struct "; break; | |
3272 | case TYPE_CODE_UNION: kind = "union "; break; | |
3273 | case TYPE_CODE_ENUM: kind = "enum "; break; | |
3274 | default: kind = ""; | |
3275 | } | |
3276 | } | |
3277 | else if (TYPE_NAME (type)) | |
3278 | { | |
3279 | name = TYPE_NAME (type); | |
3280 | kind = ""; | |
3281 | } | |
3282 | else | |
3283 | { | |
3284 | name = "<unknown>"; | |
3285 | kind = ""; | |
3286 | } | |
3287 | ||
23136709 | 3288 | complaint (&symfile_complaints, |
e2e0b3e5 | 3289 | _("struct/union type gets multiply defined: %s%s"), kind, name); |
2ae1c2d2 JB |
3290 | } |
3291 | ||
3292 | ||
c906108c SS |
3293 | /* Read the description of a structure (or union type) and return an object |
3294 | describing the type. | |
3295 | ||
3296 | PP points to a character pointer that points to the next unconsumed token | |
3297 | in the the stabs string. For example, given stabs "A:T4=s4a:1,0,32;;", | |
3298 | *PP will point to "4a:1,0,32;;". | |
3299 | ||
3300 | TYPE points to an incomplete type that needs to be filled in. | |
3301 | ||
3302 | OBJFILE points to the current objfile from which the stabs information is | |
3303 | being read. (Note that it is redundant in that TYPE also contains a pointer | |
3304 | to this same objfile, so it might be a good idea to eliminate it. FIXME). | |
c5aa993b | 3305 | */ |
c906108c SS |
3306 | |
3307 | static struct type * | |
2ae1c2d2 JB |
3308 | read_struct_type (char **pp, struct type *type, enum type_code type_code, |
3309 | struct objfile *objfile) | |
c906108c SS |
3310 | { |
3311 | struct cleanup *back_to; | |
3312 | struct field_info fi; | |
3313 | ||
3314 | fi.list = NULL; | |
3315 | fi.fnlist = NULL; | |
3316 | ||
2ae1c2d2 JB |
3317 | /* When describing struct/union/class types in stabs, G++ always drops |
3318 | all qualifications from the name. So if you've got: | |
3319 | struct A { ... struct B { ... }; ... }; | |
3320 | then G++ will emit stabs for `struct A::B' that call it simply | |
3321 | `struct B'. Obviously, if you've got a real top-level definition for | |
3322 | `struct B', or other nested definitions, this is going to cause | |
3323 | problems. | |
3324 | ||
3325 | Obviously, GDB can't fix this by itself, but it can at least avoid | |
3326 | scribbling on existing structure type objects when new definitions | |
3327 | appear. */ | |
3328 | if (! (TYPE_CODE (type) == TYPE_CODE_UNDEF | |
3329 | || TYPE_STUB (type))) | |
3330 | { | |
3331 | complain_about_struct_wipeout (type); | |
3332 | ||
3333 | /* It's probably best to return the type unchanged. */ | |
3334 | return type; | |
3335 | } | |
3336 | ||
c906108c SS |
3337 | back_to = make_cleanup (null_cleanup, 0); |
3338 | ||
3339 | INIT_CPLUS_SPECIFIC (type); | |
2ae1c2d2 | 3340 | TYPE_CODE (type) = type_code; |
876cecd0 | 3341 | TYPE_STUB (type) = 0; |
c906108c SS |
3342 | |
3343 | /* First comes the total size in bytes. */ | |
3344 | ||
3345 | { | |
3346 | int nbits; | |
94e10a22 | 3347 | TYPE_LENGTH (type) = read_huge_number (pp, 0, &nbits, 0); |
c906108c SS |
3348 | if (nbits != 0) |
3349 | return error_type (pp, objfile); | |
3350 | } | |
3351 | ||
3352 | /* Now read the baseclasses, if any, read the regular C struct or C++ | |
3353 | class member fields, attach the fields to the type, read the C++ | |
3354 | member functions, attach them to the type, and then read any tilde | |
3355 | field (baseclass specifier for the class holding the main vtable). */ | |
3356 | ||
3357 | if (!read_baseclasses (&fi, pp, type, objfile) | |
3358 | || !read_struct_fields (&fi, pp, type, objfile) | |
3359 | || !attach_fields_to_type (&fi, type, objfile) | |
3360 | || !read_member_functions (&fi, pp, type, objfile) | |
3361 | || !attach_fn_fields_to_type (&fi, type) | |
3362 | || !read_tilde_fields (&fi, pp, type, objfile)) | |
3363 | { | |
3364 | type = error_type (pp, objfile); | |
3365 | } | |
3366 | ||
3367 | do_cleanups (back_to); | |
3368 | return (type); | |
3369 | } | |
3370 | ||
3371 | /* Read a definition of an array type, | |
3372 | and create and return a suitable type object. | |
3373 | Also creates a range type which represents the bounds of that | |
3374 | array. */ | |
3375 | ||
3376 | static struct type * | |
aa1ee363 | 3377 | read_array_type (char **pp, struct type *type, |
fba45db2 | 3378 | struct objfile *objfile) |
c906108c SS |
3379 | { |
3380 | struct type *index_type, *element_type, *range_type; | |
3381 | int lower, upper; | |
3382 | int adjustable = 0; | |
3383 | int nbits; | |
3384 | ||
3385 | /* Format of an array type: | |
3386 | "ar<index type>;lower;upper;<array_contents_type>". | |
3387 | OS9000: "arlower,upper;<array_contents_type>". | |
3388 | ||
3389 | Fortran adjustable arrays use Adigits or Tdigits for lower or upper; | |
3390 | for these, produce a type like float[][]. */ | |
3391 | ||
c906108c SS |
3392 | { |
3393 | index_type = read_type (pp, objfile); | |
3394 | if (**pp != ';') | |
3395 | /* Improper format of array type decl. */ | |
3396 | return error_type (pp, objfile); | |
3397 | ++*pp; | |
3398 | } | |
3399 | ||
3400 | if (!(**pp >= '0' && **pp <= '9') && **pp != '-') | |
3401 | { | |
3402 | (*pp)++; | |
3403 | adjustable = 1; | |
3404 | } | |
94e10a22 | 3405 | lower = read_huge_number (pp, ';', &nbits, 0); |
cdecafbe | 3406 | |
c906108c SS |
3407 | if (nbits != 0) |
3408 | return error_type (pp, objfile); | |
3409 | ||
3410 | if (!(**pp >= '0' && **pp <= '9') && **pp != '-') | |
3411 | { | |
3412 | (*pp)++; | |
3413 | adjustable = 1; | |
3414 | } | |
94e10a22 | 3415 | upper = read_huge_number (pp, ';', &nbits, 0); |
c906108c SS |
3416 | if (nbits != 0) |
3417 | return error_type (pp, objfile); | |
c5aa993b | 3418 | |
c906108c SS |
3419 | element_type = read_type (pp, objfile); |
3420 | ||
3421 | if (adjustable) | |
3422 | { | |
3423 | lower = 0; | |
3424 | upper = -1; | |
3425 | } | |
3426 | ||
3427 | range_type = | |
3428 | create_range_type ((struct type *) NULL, index_type, lower, upper); | |
3429 | type = create_array_type (type, element_type, range_type); | |
3430 | ||
3431 | return type; | |
3432 | } | |
3433 | ||
3434 | ||
3435 | /* Read a definition of an enumeration type, | |
3436 | and create and return a suitable type object. | |
3437 | Also defines the symbols that represent the values of the type. */ | |
3438 | ||
3439 | static struct type * | |
aa1ee363 | 3440 | read_enum_type (char **pp, struct type *type, |
fba45db2 | 3441 | struct objfile *objfile) |
c906108c | 3442 | { |
5e2b427d | 3443 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
52f0bd74 | 3444 | char *p; |
c906108c | 3445 | char *name; |
52f0bd74 AC |
3446 | long n; |
3447 | struct symbol *sym; | |
c906108c SS |
3448 | int nsyms = 0; |
3449 | struct pending **symlist; | |
3450 | struct pending *osyms, *syms; | |
3451 | int o_nsyms; | |
3452 | int nbits; | |
3453 | int unsigned_enum = 1; | |
3454 | ||
3455 | #if 0 | |
3456 | /* FIXME! The stabs produced by Sun CC merrily define things that ought | |
3457 | to be file-scope, between N_FN entries, using N_LSYM. What's a mother | |
3458 | to do? For now, force all enum values to file scope. */ | |
3459 | if (within_function) | |
3460 | symlist = &local_symbols; | |
3461 | else | |
3462 | #endif | |
3463 | symlist = &file_symbols; | |
3464 | osyms = *symlist; | |
3465 | o_nsyms = osyms ? osyms->nsyms : 0; | |
3466 | ||
c906108c SS |
3467 | /* The aix4 compiler emits an extra field before the enum members; |
3468 | my guess is it's a type of some sort. Just ignore it. */ | |
3469 | if (**pp == '-') | |
3470 | { | |
3471 | /* Skip over the type. */ | |
3472 | while (**pp != ':') | |
c5aa993b | 3473 | (*pp)++; |
c906108c SS |
3474 | |
3475 | /* Skip over the colon. */ | |
3476 | (*pp)++; | |
3477 | } | |
3478 | ||
3479 | /* Read the value-names and their values. | |
3480 | The input syntax is NAME:VALUE,NAME:VALUE, and so on. | |
3481 | A semicolon or comma instead of a NAME means the end. */ | |
3482 | while (**pp && **pp != ';' && **pp != ',') | |
3483 | { | |
3484 | STABS_CONTINUE (pp, objfile); | |
3485 | p = *pp; | |
c5aa993b JM |
3486 | while (*p != ':') |
3487 | p++; | |
4a146b47 | 3488 | name = obsavestring (*pp, p - *pp, &objfile->objfile_obstack); |
c906108c | 3489 | *pp = p + 1; |
94e10a22 | 3490 | n = read_huge_number (pp, ',', &nbits, 0); |
c906108c SS |
3491 | if (nbits != 0) |
3492 | return error_type (pp, objfile); | |
3493 | ||
3494 | sym = (struct symbol *) | |
4a146b47 | 3495 | obstack_alloc (&objfile->objfile_obstack, sizeof (struct symbol)); |
c906108c | 3496 | memset (sym, 0, sizeof (struct symbol)); |
3567439c | 3497 | SYMBOL_SET_LINKAGE_NAME (sym, name); |
c5aa993b | 3498 | SYMBOL_LANGUAGE (sym) = current_subfile->language; |
c906108c | 3499 | SYMBOL_CLASS (sym) = LOC_CONST; |
176620f1 | 3500 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
3501 | SYMBOL_VALUE (sym) = n; |
3502 | if (n < 0) | |
3503 | unsigned_enum = 0; | |
3504 | add_symbol_to_list (sym, symlist); | |
3505 | nsyms++; | |
3506 | } | |
3507 | ||
3508 | if (**pp == ';') | |
3509 | (*pp)++; /* Skip the semicolon. */ | |
3510 | ||
3511 | /* Now fill in the fields of the type-structure. */ | |
3512 | ||
5e2b427d | 3513 | TYPE_LENGTH (type) = gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT; |
c906108c | 3514 | TYPE_CODE (type) = TYPE_CODE_ENUM; |
876cecd0 | 3515 | TYPE_STUB (type) = 0; |
c906108c | 3516 | if (unsigned_enum) |
876cecd0 | 3517 | TYPE_UNSIGNED (type) = 1; |
c906108c SS |
3518 | TYPE_NFIELDS (type) = nsyms; |
3519 | TYPE_FIELDS (type) = (struct field *) | |
3520 | TYPE_ALLOC (type, sizeof (struct field) * nsyms); | |
3521 | memset (TYPE_FIELDS (type), 0, sizeof (struct field) * nsyms); | |
3522 | ||
3523 | /* Find the symbols for the values and put them into the type. | |
3524 | The symbols can be found in the symlist that we put them on | |
3525 | to cause them to be defined. osyms contains the old value | |
3526 | of that symlist; everything up to there was defined by us. */ | |
3527 | /* Note that we preserve the order of the enum constants, so | |
3528 | that in something like "enum {FOO, LAST_THING=FOO}" we print | |
3529 | FOO, not LAST_THING. */ | |
3530 | ||
3531 | for (syms = *symlist, n = nsyms - 1; syms; syms = syms->next) | |
3532 | { | |
3533 | int last = syms == osyms ? o_nsyms : 0; | |
3534 | int j = syms->nsyms; | |
3535 | for (; --j >= last; --n) | |
3536 | { | |
3537 | struct symbol *xsym = syms->symbol[j]; | |
3538 | SYMBOL_TYPE (xsym) = type; | |
3567439c | 3539 | TYPE_FIELD_NAME (type, n) = SYMBOL_LINKAGE_NAME (xsym); |
c906108c SS |
3540 | TYPE_FIELD_BITPOS (type, n) = SYMBOL_VALUE (xsym); |
3541 | TYPE_FIELD_BITSIZE (type, n) = 0; | |
3542 | } | |
3543 | if (syms == osyms) | |
3544 | break; | |
3545 | } | |
3546 | ||
3547 | return type; | |
3548 | } | |
3549 | ||
3550 | /* Sun's ACC uses a somewhat saner method for specifying the builtin | |
3551 | typedefs in every file (for int, long, etc): | |
3552 | ||
c5aa993b JM |
3553 | type = b <signed> <width> <format type>; <offset>; <nbits> |
3554 | signed = u or s. | |
3555 | optional format type = c or b for char or boolean. | |
3556 | offset = offset from high order bit to start bit of type. | |
3557 | width is # bytes in object of this type, nbits is # bits in type. | |
c906108c SS |
3558 | |
3559 | The width/offset stuff appears to be for small objects stored in | |
3560 | larger ones (e.g. `shorts' in `int' registers). We ignore it for now, | |
3561 | FIXME. */ | |
3562 | ||
3563 | static struct type * | |
35a2f538 | 3564 | read_sun_builtin_type (char **pp, int typenums[2], struct objfile *objfile) |
c906108c SS |
3565 | { |
3566 | int type_bits; | |
3567 | int nbits; | |
3568 | int signed_type; | |
3569 | enum type_code code = TYPE_CODE_INT; | |
3570 | ||
3571 | switch (**pp) | |
3572 | { | |
c5aa993b JM |
3573 | case 's': |
3574 | signed_type = 1; | |
3575 | break; | |
3576 | case 'u': | |
3577 | signed_type = 0; | |
3578 | break; | |
3579 | default: | |
3580 | return error_type (pp, objfile); | |
c906108c SS |
3581 | } |
3582 | (*pp)++; | |
3583 | ||
3584 | /* For some odd reason, all forms of char put a c here. This is strange | |
3585 | because no other type has this honor. We can safely ignore this because | |
3586 | we actually determine 'char'acterness by the number of bits specified in | |
3587 | the descriptor. | |
3588 | Boolean forms, e.g Fortran logical*X, put a b here. */ | |
3589 | ||
3590 | if (**pp == 'c') | |
3591 | (*pp)++; | |
3592 | else if (**pp == 'b') | |
3593 | { | |
3594 | code = TYPE_CODE_BOOL; | |
3595 | (*pp)++; | |
3596 | } | |
3597 | ||
3598 | /* The first number appears to be the number of bytes occupied | |
3599 | by this type, except that unsigned short is 4 instead of 2. | |
3600 | Since this information is redundant with the third number, | |
3601 | we will ignore it. */ | |
94e10a22 | 3602 | read_huge_number (pp, ';', &nbits, 0); |
c906108c SS |
3603 | if (nbits != 0) |
3604 | return error_type (pp, objfile); | |
3605 | ||
3606 | /* The second number is always 0, so ignore it too. */ | |
94e10a22 | 3607 | read_huge_number (pp, ';', &nbits, 0); |
c906108c SS |
3608 | if (nbits != 0) |
3609 | return error_type (pp, objfile); | |
3610 | ||
3611 | /* The third number is the number of bits for this type. */ | |
94e10a22 | 3612 | type_bits = read_huge_number (pp, 0, &nbits, 0); |
c906108c SS |
3613 | if (nbits != 0) |
3614 | return error_type (pp, objfile); | |
3615 | /* The type *should* end with a semicolon. If it are embedded | |
3616 | in a larger type the semicolon may be the only way to know where | |
3617 | the type ends. If this type is at the end of the stabstring we | |
3618 | can deal with the omitted semicolon (but we don't have to like | |
3619 | it). Don't bother to complain(), Sun's compiler omits the semicolon | |
3620 | for "void". */ | |
3621 | if (**pp == ';') | |
3622 | ++(*pp); | |
3623 | ||
3624 | if (type_bits == 0) | |
3625 | return init_type (TYPE_CODE_VOID, 1, | |
c5aa993b | 3626 | signed_type ? 0 : TYPE_FLAG_UNSIGNED, (char *) NULL, |
c906108c SS |
3627 | objfile); |
3628 | else | |
3629 | return init_type (code, | |
3630 | type_bits / TARGET_CHAR_BIT, | |
c5aa993b | 3631 | signed_type ? 0 : TYPE_FLAG_UNSIGNED, (char *) NULL, |
c906108c SS |
3632 | objfile); |
3633 | } | |
3634 | ||
3635 | static struct type * | |
35a2f538 | 3636 | read_sun_floating_type (char **pp, int typenums[2], struct objfile *objfile) |
c906108c SS |
3637 | { |
3638 | int nbits; | |
3639 | int details; | |
3640 | int nbytes; | |
f65ca430 | 3641 | struct type *rettype; |
c906108c SS |
3642 | |
3643 | /* The first number has more details about the type, for example | |
3644 | FN_COMPLEX. */ | |
94e10a22 | 3645 | details = read_huge_number (pp, ';', &nbits, 0); |
c906108c SS |
3646 | if (nbits != 0) |
3647 | return error_type (pp, objfile); | |
3648 | ||
3649 | /* The second number is the number of bytes occupied by this type */ | |
94e10a22 | 3650 | nbytes = read_huge_number (pp, ';', &nbits, 0); |
c906108c SS |
3651 | if (nbits != 0) |
3652 | return error_type (pp, objfile); | |
3653 | ||
3654 | if (details == NF_COMPLEX || details == NF_COMPLEX16 | |
3655 | || details == NF_COMPLEX32) | |
f65ca430 DJ |
3656 | { |
3657 | rettype = init_type (TYPE_CODE_COMPLEX, nbytes, 0, NULL, objfile); | |
3658 | TYPE_TARGET_TYPE (rettype) | |
3659 | = init_type (TYPE_CODE_FLT, nbytes / 2, 0, NULL, objfile); | |
3660 | return rettype; | |
3661 | } | |
c906108c SS |
3662 | |
3663 | return init_type (TYPE_CODE_FLT, nbytes, 0, NULL, objfile); | |
3664 | } | |
3665 | ||
3666 | /* Read a number from the string pointed to by *PP. | |
3667 | The value of *PP is advanced over the number. | |
3668 | If END is nonzero, the character that ends the | |
3669 | number must match END, or an error happens; | |
3670 | and that character is skipped if it does match. | |
3671 | If END is zero, *PP is left pointing to that character. | |
3672 | ||
94e10a22 JG |
3673 | If TWOS_COMPLEMENT_BITS is set to a strictly positive value and if |
3674 | the number is represented in an octal representation, assume that | |
3675 | it is represented in a 2's complement representation with a size of | |
3676 | TWOS_COMPLEMENT_BITS. | |
3677 | ||
c906108c SS |
3678 | If the number fits in a long, set *BITS to 0 and return the value. |
3679 | If not, set *BITS to be the number of bits in the number and return 0. | |
3680 | ||
3681 | If encounter garbage, set *BITS to -1 and return 0. */ | |
3682 | ||
c2d11a7d | 3683 | static long |
94e10a22 | 3684 | read_huge_number (char **pp, int end, int *bits, int twos_complement_bits) |
c906108c SS |
3685 | { |
3686 | char *p = *pp; | |
3687 | int sign = 1; | |
51e9e0d4 | 3688 | int sign_bit = 0; |
c2d11a7d | 3689 | long n = 0; |
c906108c SS |
3690 | int radix = 10; |
3691 | char overflow = 0; | |
3692 | int nbits = 0; | |
3693 | int c; | |
c2d11a7d | 3694 | long upper_limit; |
a2699720 | 3695 | int twos_complement_representation = 0; |
c5aa993b | 3696 | |
c906108c SS |
3697 | if (*p == '-') |
3698 | { | |
3699 | sign = -1; | |
3700 | p++; | |
3701 | } | |
3702 | ||
3703 | /* Leading zero means octal. GCC uses this to output values larger | |
3704 | than an int (because that would be hard in decimal). */ | |
3705 | if (*p == '0') | |
3706 | { | |
3707 | radix = 8; | |
3708 | p++; | |
3709 | } | |
3710 | ||
a2699720 PA |
3711 | /* Skip extra zeros. */ |
3712 | while (*p == '0') | |
3713 | p++; | |
3714 | ||
3715 | if (sign > 0 && radix == 8 && twos_complement_bits > 0) | |
3716 | { | |
3717 | /* Octal, possibly signed. Check if we have enough chars for a | |
3718 | negative number. */ | |
3719 | ||
3720 | size_t len; | |
3721 | char *p1 = p; | |
3722 | while ((c = *p1) >= '0' && c < '8') | |
3723 | p1++; | |
3724 | ||
3725 | len = p1 - p; | |
3726 | if (len > twos_complement_bits / 3 | |
3727 | || (twos_complement_bits % 3 == 0 && len == twos_complement_bits / 3)) | |
3728 | { | |
3729 | /* Ok, we have enough characters for a signed value, check | |
3730 | for signness by testing if the sign bit is set. */ | |
3731 | sign_bit = (twos_complement_bits % 3 + 2) % 3; | |
3732 | c = *p - '0'; | |
3733 | if (c & (1 << sign_bit)) | |
3734 | { | |
3735 | /* Definitely signed. */ | |
3736 | twos_complement_representation = 1; | |
3737 | sign = -1; | |
3738 | } | |
3739 | } | |
3740 | } | |
3741 | ||
1b831c93 | 3742 | upper_limit = LONG_MAX / radix; |
c906108c SS |
3743 | |
3744 | while ((c = *p++) >= '0' && c < ('0' + radix)) | |
3745 | { | |
3746 | if (n <= upper_limit) | |
94e10a22 JG |
3747 | { |
3748 | if (twos_complement_representation) | |
3749 | { | |
a2699720 PA |
3750 | /* Octal, signed, twos complement representation. In |
3751 | this case, n is the corresponding absolute value. */ | |
3752 | if (n == 0) | |
3753 | { | |
3754 | long sn = c - '0' - ((2 * (c - '0')) | (2 << sign_bit)); | |
3755 | n = -sn; | |
3756 | } | |
94e10a22 JG |
3757 | else |
3758 | { | |
a2699720 PA |
3759 | n *= radix; |
3760 | n -= c - '0'; | |
94e10a22 | 3761 | } |
94e10a22 JG |
3762 | } |
3763 | else | |
3764 | { | |
3765 | /* unsigned representation */ | |
3766 | n *= radix; | |
3767 | n += c - '0'; /* FIXME this overflows anyway */ | |
3768 | } | |
3769 | } | |
c906108c | 3770 | else |
94e10a22 | 3771 | overflow = 1; |
c5aa993b | 3772 | |
c906108c | 3773 | /* This depends on large values being output in octal, which is |
c5aa993b | 3774 | what GCC does. */ |
c906108c SS |
3775 | if (radix == 8) |
3776 | { | |
3777 | if (nbits == 0) | |
3778 | { | |
3779 | if (c == '0') | |
3780 | /* Ignore leading zeroes. */ | |
3781 | ; | |
3782 | else if (c == '1') | |
3783 | nbits = 1; | |
3784 | else if (c == '2' || c == '3') | |
3785 | nbits = 2; | |
3786 | else | |
3787 | nbits = 3; | |
3788 | } | |
3789 | else | |
3790 | nbits += 3; | |
3791 | } | |
3792 | } | |
3793 | if (end) | |
3794 | { | |
3795 | if (c && c != end) | |
3796 | { | |
3797 | if (bits != NULL) | |
3798 | *bits = -1; | |
3799 | return 0; | |
3800 | } | |
3801 | } | |
3802 | else | |
3803 | --p; | |
3804 | ||
a2699720 PA |
3805 | if (radix == 8 && twos_complement_bits > 0 && nbits > twos_complement_bits) |
3806 | { | |
3807 | /* We were supposed to parse a number with maximum | |
3808 | TWOS_COMPLEMENT_BITS bits, but something went wrong. */ | |
3809 | if (bits != NULL) | |
3810 | *bits = -1; | |
3811 | return 0; | |
3812 | } | |
3813 | ||
c906108c SS |
3814 | *pp = p; |
3815 | if (overflow) | |
3816 | { | |
3817 | if (nbits == 0) | |
3818 | { | |
3819 | /* Large decimal constants are an error (because it is hard to | |
3820 | count how many bits are in them). */ | |
3821 | if (bits != NULL) | |
3822 | *bits = -1; | |
3823 | return 0; | |
3824 | } | |
c5aa993b | 3825 | |
c906108c | 3826 | /* -0x7f is the same as 0x80. So deal with it by adding one to |
a2699720 PA |
3827 | the number of bits. Two's complement represention octals |
3828 | can't have a '-' in front. */ | |
3829 | if (sign == -1 && !twos_complement_representation) | |
c906108c SS |
3830 | ++nbits; |
3831 | if (bits) | |
3832 | *bits = nbits; | |
3833 | } | |
3834 | else | |
3835 | { | |
3836 | if (bits) | |
3837 | *bits = 0; | |
a2699720 | 3838 | return n * sign; |
c906108c SS |
3839 | } |
3840 | /* It's *BITS which has the interesting information. */ | |
3841 | return 0; | |
3842 | } | |
3843 | ||
3844 | static struct type * | |
94e10a22 JG |
3845 | read_range_type (char **pp, int typenums[2], int type_size, |
3846 | struct objfile *objfile) | |
c906108c | 3847 | { |
5e2b427d | 3848 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
c906108c SS |
3849 | char *orig_pp = *pp; |
3850 | int rangenums[2]; | |
c2d11a7d | 3851 | long n2, n3; |
c906108c SS |
3852 | int n2bits, n3bits; |
3853 | int self_subrange; | |
3854 | struct type *result_type; | |
3855 | struct type *index_type = NULL; | |
3856 | ||
3857 | /* First comes a type we are a subrange of. | |
3858 | In C it is usually 0, 1 or the type being defined. */ | |
3859 | if (read_type_number (pp, rangenums) != 0) | |
3860 | return error_type (pp, objfile); | |
3861 | self_subrange = (rangenums[0] == typenums[0] && | |
3862 | rangenums[1] == typenums[1]); | |
3863 | ||
3864 | if (**pp == '=') | |
3865 | { | |
3866 | *pp = orig_pp; | |
3867 | index_type = read_type (pp, objfile); | |
3868 | } | |
3869 | ||
3870 | /* A semicolon should now follow; skip it. */ | |
3871 | if (**pp == ';') | |
3872 | (*pp)++; | |
3873 | ||
3874 | /* The remaining two operands are usually lower and upper bounds | |
3875 | of the range. But in some special cases they mean something else. */ | |
94e10a22 JG |
3876 | n2 = read_huge_number (pp, ';', &n2bits, type_size); |
3877 | n3 = read_huge_number (pp, ';', &n3bits, type_size); | |
c906108c SS |
3878 | |
3879 | if (n2bits == -1 || n3bits == -1) | |
3880 | return error_type (pp, objfile); | |
3881 | ||
3882 | if (index_type) | |
3883 | goto handle_true_range; | |
3884 | ||
3885 | /* If limits are huge, must be large integral type. */ | |
3886 | if (n2bits != 0 || n3bits != 0) | |
3887 | { | |
3888 | char got_signed = 0; | |
3889 | char got_unsigned = 0; | |
3890 | /* Number of bits in the type. */ | |
3891 | int nbits = 0; | |
3892 | ||
94e10a22 JG |
3893 | /* If a type size attribute has been specified, the bounds of |
3894 | the range should fit in this size. If the lower bounds needs | |
3895 | more bits than the upper bound, then the type is signed. */ | |
3896 | if (n2bits <= type_size && n3bits <= type_size) | |
3897 | { | |
3898 | if (n2bits == type_size && n2bits > n3bits) | |
3899 | got_signed = 1; | |
3900 | else | |
3901 | got_unsigned = 1; | |
3902 | nbits = type_size; | |
3903 | } | |
c906108c | 3904 | /* Range from 0 to <large number> is an unsigned large integral type. */ |
94e10a22 | 3905 | else if ((n2bits == 0 && n2 == 0) && n3bits != 0) |
c906108c SS |
3906 | { |
3907 | got_unsigned = 1; | |
3908 | nbits = n3bits; | |
3909 | } | |
3910 | /* Range from <large number> to <large number>-1 is a large signed | |
c5aa993b JM |
3911 | integral type. Take care of the case where <large number> doesn't |
3912 | fit in a long but <large number>-1 does. */ | |
c906108c SS |
3913 | else if ((n2bits != 0 && n3bits != 0 && n2bits == n3bits + 1) |
3914 | || (n2bits != 0 && n3bits == 0 | |
c2d11a7d JM |
3915 | && (n2bits == sizeof (long) * HOST_CHAR_BIT) |
3916 | && n3 == LONG_MAX)) | |
c906108c SS |
3917 | { |
3918 | got_signed = 1; | |
3919 | nbits = n2bits; | |
3920 | } | |
3921 | ||
3922 | if (got_signed || got_unsigned) | |
3923 | { | |
3924 | return init_type (TYPE_CODE_INT, nbits / TARGET_CHAR_BIT, | |
3925 | got_unsigned ? TYPE_FLAG_UNSIGNED : 0, NULL, | |
3926 | objfile); | |
3927 | } | |
3928 | else | |
3929 | return error_type (pp, objfile); | |
3930 | } | |
3931 | ||
3932 | /* A type defined as a subrange of itself, with bounds both 0, is void. */ | |
3933 | if (self_subrange && n2 == 0 && n3 == 0) | |
3934 | return init_type (TYPE_CODE_VOID, 1, 0, NULL, objfile); | |
3935 | ||
3936 | /* If n3 is zero and n2 is positive, we want a floating type, and n2 | |
3937 | is the width in bytes. | |
3938 | ||
3939 | Fortran programs appear to use this for complex types also. To | |
3940 | distinguish between floats and complex, g77 (and others?) seem | |
3941 | to use self-subranges for the complexes, and subranges of int for | |
3942 | the floats. | |
3943 | ||
3944 | Also note that for complexes, g77 sets n2 to the size of one of | |
3945 | the member floats, not the whole complex beast. My guess is that | |
3946 | this was to work well with pre-COMPLEX versions of gdb. */ | |
3947 | ||
3948 | if (n3 == 0 && n2 > 0) | |
3949 | { | |
1300f5dd JB |
3950 | struct type *float_type |
3951 | = init_type (TYPE_CODE_FLT, n2, 0, NULL, objfile); | |
3952 | ||
c906108c SS |
3953 | if (self_subrange) |
3954 | { | |
1300f5dd JB |
3955 | struct type *complex_type = |
3956 | init_type (TYPE_CODE_COMPLEX, 2 * n2, 0, NULL, objfile); | |
3957 | TYPE_TARGET_TYPE (complex_type) = float_type; | |
3958 | return complex_type; | |
c906108c SS |
3959 | } |
3960 | else | |
1300f5dd | 3961 | return float_type; |
c906108c SS |
3962 | } |
3963 | ||
a2699720 | 3964 | /* If the upper bound is -1, it must really be an unsigned integral. */ |
c906108c SS |
3965 | |
3966 | else if (n2 == 0 && n3 == -1) | |
3967 | { | |
a2699720 PA |
3968 | int bits = type_size; |
3969 | if (bits <= 0) | |
3970 | { | |
3971 | /* We don't know its size. It is unsigned int or unsigned | |
3972 | long. GCC 2.3.3 uses this for long long too, but that is | |
3973 | just a GDB 3.5 compatibility hack. */ | |
5e2b427d | 3974 | bits = gdbarch_int_bit (gdbarch); |
a2699720 PA |
3975 | } |
3976 | ||
3977 | return init_type (TYPE_CODE_INT, bits / TARGET_CHAR_BIT, | |
c906108c SS |
3978 | TYPE_FLAG_UNSIGNED, NULL, objfile); |
3979 | } | |
3980 | ||
3981 | /* Special case: char is defined (Who knows why) as a subrange of | |
3982 | itself with range 0-127. */ | |
3983 | else if (self_subrange && n2 == 0 && n3 == 127) | |
973ccf8b | 3984 | return init_type (TYPE_CODE_INT, 1, TYPE_FLAG_NOSIGN, NULL, objfile); |
c906108c | 3985 | |
c906108c SS |
3986 | /* We used to do this only for subrange of self or subrange of int. */ |
3987 | else if (n2 == 0) | |
3988 | { | |
a0b3c4fd JM |
3989 | /* -1 is used for the upper bound of (4 byte) "unsigned int" and |
3990 | "unsigned long", and we already checked for that, | |
3991 | so don't need to test for it here. */ | |
3992 | ||
c906108c SS |
3993 | if (n3 < 0) |
3994 | /* n3 actually gives the size. */ | |
c5aa993b | 3995 | return init_type (TYPE_CODE_INT, -n3, TYPE_FLAG_UNSIGNED, |
c906108c | 3996 | NULL, objfile); |
c906108c | 3997 | |
7be570e7 | 3998 | /* Is n3 == 2**(8n)-1 for some integer n? Then it's an |
a0b3c4fd JM |
3999 | unsigned n-byte integer. But do require n to be a power of |
4000 | two; we don't want 3- and 5-byte integers flying around. */ | |
4001 | { | |
4002 | int bytes; | |
4003 | unsigned long bits; | |
4004 | ||
4005 | bits = n3; | |
4006 | for (bytes = 0; (bits & 0xff) == 0xff; bytes++) | |
4007 | bits >>= 8; | |
4008 | if (bits == 0 | |
4009 | && ((bytes - 1) & bytes) == 0) /* "bytes is a power of two" */ | |
4010 | return init_type (TYPE_CODE_INT, bytes, TYPE_FLAG_UNSIGNED, NULL, | |
4011 | objfile); | |
4012 | } | |
c906108c SS |
4013 | } |
4014 | /* I think this is for Convex "long long". Since I don't know whether | |
4015 | Convex sets self_subrange, I also accept that particular size regardless | |
4016 | of self_subrange. */ | |
4017 | else if (n3 == 0 && n2 < 0 | |
4018 | && (self_subrange | |
9a76efb6 | 4019 | || n2 == -gdbarch_long_long_bit |
5e2b427d | 4020 | (gdbarch) / TARGET_CHAR_BIT)) |
c5aa993b JM |
4021 | return init_type (TYPE_CODE_INT, -n2, 0, NULL, objfile); |
4022 | else if (n2 == -n3 - 1) | |
c906108c SS |
4023 | { |
4024 | if (n3 == 0x7f) | |
4025 | return init_type (TYPE_CODE_INT, 1, 0, NULL, objfile); | |
4026 | if (n3 == 0x7fff) | |
4027 | return init_type (TYPE_CODE_INT, 2, 0, NULL, objfile); | |
4028 | if (n3 == 0x7fffffff) | |
4029 | return init_type (TYPE_CODE_INT, 4, 0, NULL, objfile); | |
4030 | } | |
4031 | ||
4032 | /* We have a real range type on our hands. Allocate space and | |
4033 | return a real pointer. */ | |
c5aa993b | 4034 | handle_true_range: |
c906108c SS |
4035 | |
4036 | if (self_subrange) | |
5e2b427d | 4037 | index_type = builtin_type (gdbarch)->builtin_int; |
c906108c SS |
4038 | else |
4039 | index_type = *dbx_lookup_type (rangenums); | |
4040 | if (index_type == NULL) | |
4041 | { | |
4042 | /* Does this actually ever happen? Is that why we are worrying | |
4043 | about dealing with it rather than just calling error_type? */ | |
4044 | ||
23136709 | 4045 | complaint (&symfile_complaints, |
e2e0b3e5 | 4046 | _("base type %d of range type is not defined"), rangenums[1]); |
5e2b427d UW |
4047 | |
4048 | index_type = builtin_type (gdbarch)->builtin_int; | |
c906108c SS |
4049 | } |
4050 | ||
4051 | result_type = create_range_type ((struct type *) NULL, index_type, n2, n3); | |
4052 | return (result_type); | |
4053 | } | |
4054 | ||
4055 | /* Read in an argument list. This is a list of types, separated by commas | |
0a029df5 DJ |
4056 | and terminated with END. Return the list of types read in, or NULL |
4057 | if there is an error. */ | |
c906108c | 4058 | |
ad2f7632 DJ |
4059 | static struct field * |
4060 | read_args (char **pp, int end, struct objfile *objfile, int *nargsp, | |
4061 | int *varargsp) | |
c906108c SS |
4062 | { |
4063 | /* FIXME! Remove this arbitrary limit! */ | |
ad2f7632 DJ |
4064 | struct type *types[1024]; /* allow for fns of 1023 parameters */ |
4065 | int n = 0, i; | |
4066 | struct field *rval; | |
c906108c SS |
4067 | |
4068 | while (**pp != end) | |
4069 | { | |
4070 | if (**pp != ',') | |
4071 | /* Invalid argument list: no ','. */ | |
0a029df5 | 4072 | return NULL; |
c906108c SS |
4073 | (*pp)++; |
4074 | STABS_CONTINUE (pp, objfile); | |
4075 | types[n++] = read_type (pp, objfile); | |
4076 | } | |
4077 | (*pp)++; /* get past `end' (the ':' character) */ | |
4078 | ||
ad2f7632 DJ |
4079 | if (TYPE_CODE (types[n - 1]) != TYPE_CODE_VOID) |
4080 | *varargsp = 1; | |
c906108c SS |
4081 | else |
4082 | { | |
ad2f7632 DJ |
4083 | n--; |
4084 | *varargsp = 0; | |
c906108c | 4085 | } |
ad2f7632 DJ |
4086 | |
4087 | rval = (struct field *) xmalloc (n * sizeof (struct field)); | |
4088 | memset (rval, 0, n * sizeof (struct field)); | |
4089 | for (i = 0; i < n; i++) | |
4090 | rval[i].type = types[i]; | |
4091 | *nargsp = n; | |
c906108c SS |
4092 | return rval; |
4093 | } | |
4094 | \f | |
4095 | /* Common block handling. */ | |
4096 | ||
4097 | /* List of symbols declared since the last BCOMM. This list is a tail | |
4098 | of local_symbols. When ECOMM is seen, the symbols on the list | |
4099 | are noted so their proper addresses can be filled in later, | |
4100 | using the common block base address gotten from the assembler | |
4101 | stabs. */ | |
4102 | ||
4103 | static struct pending *common_block; | |
4104 | static int common_block_i; | |
4105 | ||
4106 | /* Name of the current common block. We get it from the BCOMM instead of the | |
4107 | ECOMM to match IBM documentation (even though IBM puts the name both places | |
4108 | like everyone else). */ | |
4109 | static char *common_block_name; | |
4110 | ||
4111 | /* Process a N_BCOMM symbol. The storage for NAME is not guaranteed | |
4112 | to remain after this function returns. */ | |
4113 | ||
4114 | void | |
fba45db2 | 4115 | common_block_start (char *name, struct objfile *objfile) |
c906108c SS |
4116 | { |
4117 | if (common_block_name != NULL) | |
4118 | { | |
23136709 | 4119 | complaint (&symfile_complaints, |
e2e0b3e5 | 4120 | _("Invalid symbol data: common block within common block")); |
c906108c SS |
4121 | } |
4122 | common_block = local_symbols; | |
4123 | common_block_i = local_symbols ? local_symbols->nsyms : 0; | |
4124 | common_block_name = obsavestring (name, strlen (name), | |
4a146b47 | 4125 | &objfile->objfile_obstack); |
c906108c SS |
4126 | } |
4127 | ||
4128 | /* Process a N_ECOMM symbol. */ | |
4129 | ||
4130 | void | |
fba45db2 | 4131 | common_block_end (struct objfile *objfile) |
c906108c SS |
4132 | { |
4133 | /* Symbols declared since the BCOMM are to have the common block | |
4134 | start address added in when we know it. common_block and | |
4135 | common_block_i point to the first symbol after the BCOMM in | |
4136 | the local_symbols list; copy the list and hang it off the | |
4137 | symbol for the common block name for later fixup. */ | |
4138 | int i; | |
4139 | struct symbol *sym; | |
4140 | struct pending *new = 0; | |
4141 | struct pending *next; | |
4142 | int j; | |
4143 | ||
4144 | if (common_block_name == NULL) | |
4145 | { | |
e2e0b3e5 | 4146 | complaint (&symfile_complaints, _("ECOMM symbol unmatched by BCOMM")); |
c906108c SS |
4147 | return; |
4148 | } | |
4149 | ||
c5aa993b | 4150 | sym = (struct symbol *) |
4a146b47 | 4151 | obstack_alloc (&objfile->objfile_obstack, sizeof (struct symbol)); |
c906108c | 4152 | memset (sym, 0, sizeof (struct symbol)); |
4a146b47 | 4153 | /* Note: common_block_name already saved on objfile_obstack */ |
3567439c | 4154 | SYMBOL_SET_LINKAGE_NAME (sym, common_block_name); |
c906108c SS |
4155 | SYMBOL_CLASS (sym) = LOC_BLOCK; |
4156 | ||
4157 | /* Now we copy all the symbols which have been defined since the BCOMM. */ | |
4158 | ||
4159 | /* Copy all the struct pendings before common_block. */ | |
4160 | for (next = local_symbols; | |
4161 | next != NULL && next != common_block; | |
4162 | next = next->next) | |
4163 | { | |
4164 | for (j = 0; j < next->nsyms; j++) | |
4165 | add_symbol_to_list (next->symbol[j], &new); | |
4166 | } | |
4167 | ||
4168 | /* Copy however much of COMMON_BLOCK we need. If COMMON_BLOCK is | |
4169 | NULL, it means copy all the local symbols (which we already did | |
4170 | above). */ | |
4171 | ||
4172 | if (common_block != NULL) | |
4173 | for (j = common_block_i; j < common_block->nsyms; j++) | |
4174 | add_symbol_to_list (common_block->symbol[j], &new); | |
4175 | ||
4176 | SYMBOL_TYPE (sym) = (struct type *) new; | |
4177 | ||
4178 | /* Should we be putting local_symbols back to what it was? | |
4179 | Does it matter? */ | |
4180 | ||
3567439c | 4181 | i = hashname (SYMBOL_LINKAGE_NAME (sym)); |
c906108c SS |
4182 | SYMBOL_VALUE_CHAIN (sym) = global_sym_chain[i]; |
4183 | global_sym_chain[i] = sym; | |
4184 | common_block_name = NULL; | |
4185 | } | |
4186 | ||
4187 | /* Add a common block's start address to the offset of each symbol | |
4188 | declared to be in it (by being between a BCOMM/ECOMM pair that uses | |
4189 | the common block name). */ | |
4190 | ||
4191 | static void | |
fba45db2 | 4192 | fix_common_block (struct symbol *sym, int valu) |
c906108c SS |
4193 | { |
4194 | struct pending *next = (struct pending *) SYMBOL_TYPE (sym); | |
c5aa993b | 4195 | for (; next; next = next->next) |
c906108c | 4196 | { |
aa1ee363 | 4197 | int j; |
c906108c SS |
4198 | for (j = next->nsyms - 1; j >= 0; j--) |
4199 | SYMBOL_VALUE_ADDRESS (next->symbol[j]) += valu; | |
4200 | } | |
4201 | } | |
c5aa993b | 4202 | \f |
c906108c SS |
4203 | |
4204 | ||
bf362611 JB |
4205 | /* Add {TYPE, TYPENUMS} to the NONAME_UNDEFS vector. |
4206 | See add_undefined_type for more details. */ | |
c906108c | 4207 | |
a7a48797 | 4208 | static void |
bf362611 JB |
4209 | add_undefined_type_noname (struct type *type, int typenums[2]) |
4210 | { | |
4211 | struct nat nat; | |
4212 | ||
4213 | nat.typenums[0] = typenums [0]; | |
4214 | nat.typenums[1] = typenums [1]; | |
4215 | nat.type = type; | |
4216 | ||
4217 | if (noname_undefs_length == noname_undefs_allocated) | |
4218 | { | |
4219 | noname_undefs_allocated *= 2; | |
4220 | noname_undefs = (struct nat *) | |
4221 | xrealloc ((char *) noname_undefs, | |
4222 | noname_undefs_allocated * sizeof (struct nat)); | |
4223 | } | |
4224 | noname_undefs[noname_undefs_length++] = nat; | |
4225 | } | |
4226 | ||
4227 | /* Add TYPE to the UNDEF_TYPES vector. | |
4228 | See add_undefined_type for more details. */ | |
4229 | ||
4230 | static void | |
4231 | add_undefined_type_1 (struct type *type) | |
c906108c SS |
4232 | { |
4233 | if (undef_types_length == undef_types_allocated) | |
4234 | { | |
4235 | undef_types_allocated *= 2; | |
4236 | undef_types = (struct type **) | |
4237 | xrealloc ((char *) undef_types, | |
4238 | undef_types_allocated * sizeof (struct type *)); | |
4239 | } | |
4240 | undef_types[undef_types_length++] = type; | |
4241 | } | |
4242 | ||
bf362611 JB |
4243 | /* What about types defined as forward references inside of a small lexical |
4244 | scope? */ | |
4245 | /* Add a type to the list of undefined types to be checked through | |
4246 | once this file has been read in. | |
4247 | ||
4248 | In practice, we actually maintain two such lists: The first list | |
4249 | (UNDEF_TYPES) is used for types whose name has been provided, and | |
4250 | concerns forward references (eg 'xs' or 'xu' forward references); | |
4251 | the second list (NONAME_UNDEFS) is used for types whose name is | |
4252 | unknown at creation time, because they were referenced through | |
4253 | their type number before the actual type was declared. | |
4254 | This function actually adds the given type to the proper list. */ | |
4255 | ||
4256 | static void | |
4257 | add_undefined_type (struct type *type, int typenums[2]) | |
4258 | { | |
4259 | if (TYPE_TAG_NAME (type) == NULL) | |
4260 | add_undefined_type_noname (type, typenums); | |
4261 | else | |
4262 | add_undefined_type_1 (type); | |
4263 | } | |
4264 | ||
4265 | /* Try to fix all undefined types pushed on the UNDEF_TYPES vector. */ | |
4266 | ||
4267 | void | |
4268 | cleanup_undefined_types_noname (void) | |
4269 | { | |
4270 | int i; | |
4271 | ||
4272 | for (i = 0; i < noname_undefs_length; i++) | |
4273 | { | |
4274 | struct nat nat = noname_undefs[i]; | |
4275 | struct type **type; | |
4276 | ||
4277 | type = dbx_lookup_type (nat.typenums); | |
4278 | if (nat.type != *type && TYPE_CODE (*type) != TYPE_CODE_UNDEF) | |
56953f80 JB |
4279 | { |
4280 | /* The instance flags of the undefined type are still unset, | |
4281 | and needs to be copied over from the reference type. | |
4282 | Since replace_type expects them to be identical, we need | |
4283 | to set these flags manually before hand. */ | |
4284 | TYPE_INSTANCE_FLAGS (nat.type) = TYPE_INSTANCE_FLAGS (*type); | |
4285 | replace_type (nat.type, *type); | |
4286 | } | |
bf362611 JB |
4287 | } |
4288 | ||
4289 | noname_undefs_length = 0; | |
4290 | } | |
4291 | ||
c906108c SS |
4292 | /* Go through each undefined type, see if it's still undefined, and fix it |
4293 | up if possible. We have two kinds of undefined types: | |
4294 | ||
4295 | TYPE_CODE_ARRAY: Array whose target type wasn't defined yet. | |
c5aa993b JM |
4296 | Fix: update array length using the element bounds |
4297 | and the target type's length. | |
c906108c | 4298 | TYPE_CODE_STRUCT, TYPE_CODE_UNION: Structure whose fields were not |
c5aa993b JM |
4299 | yet defined at the time a pointer to it was made. |
4300 | Fix: Do a full lookup on the struct/union tag. */ | |
bf362611 | 4301 | |
c906108c | 4302 | void |
bf362611 | 4303 | cleanup_undefined_types_1 (void) |
c906108c SS |
4304 | { |
4305 | struct type **type; | |
4306 | ||
9e386756 JB |
4307 | /* Iterate over every undefined type, and look for a symbol whose type |
4308 | matches our undefined type. The symbol matches if: | |
4309 | 1. It is a typedef in the STRUCT domain; | |
4310 | 2. It has the same name, and same type code; | |
4311 | 3. The instance flags are identical. | |
4312 | ||
4313 | It is important to check the instance flags, because we have seen | |
4314 | examples where the debug info contained definitions such as: | |
4315 | ||
4316 | "foo_t:t30=B31=xefoo_t:" | |
4317 | ||
4318 | In this case, we have created an undefined type named "foo_t" whose | |
4319 | instance flags is null (when processing "xefoo_t"), and then created | |
4320 | another type with the same name, but with different instance flags | |
4321 | ('B' means volatile). I think that the definition above is wrong, | |
4322 | since the same type cannot be volatile and non-volatile at the same | |
4323 | time, but we need to be able to cope with it when it happens. The | |
4324 | approach taken here is to treat these two types as different. */ | |
4325 | ||
c906108c SS |
4326 | for (type = undef_types; type < undef_types + undef_types_length; type++) |
4327 | { | |
4328 | switch (TYPE_CODE (*type)) | |
4329 | { | |
4330 | ||
c5aa993b JM |
4331 | case TYPE_CODE_STRUCT: |
4332 | case TYPE_CODE_UNION: | |
4333 | case TYPE_CODE_ENUM: | |
c906108c SS |
4334 | { |
4335 | /* Check if it has been defined since. Need to do this here | |
4336 | as well as in check_typedef to deal with the (legitimate in | |
4337 | C though not C++) case of several types with the same name | |
4338 | in different source files. */ | |
74a9bb82 | 4339 | if (TYPE_STUB (*type)) |
c906108c SS |
4340 | { |
4341 | struct pending *ppt; | |
4342 | int i; | |
4343 | /* Name of the type, without "struct" or "union" */ | |
4344 | char *typename = TYPE_TAG_NAME (*type); | |
4345 | ||
4346 | if (typename == NULL) | |
4347 | { | |
e2e0b3e5 | 4348 | complaint (&symfile_complaints, _("need a type name")); |
c906108c SS |
4349 | break; |
4350 | } | |
4351 | for (ppt = file_symbols; ppt; ppt = ppt->next) | |
4352 | { | |
4353 | for (i = 0; i < ppt->nsyms; i++) | |
4354 | { | |
4355 | struct symbol *sym = ppt->symbol[i]; | |
c5aa993b | 4356 | |
c906108c | 4357 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF |
176620f1 | 4358 | && SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN |
c906108c SS |
4359 | && (TYPE_CODE (SYMBOL_TYPE (sym)) == |
4360 | TYPE_CODE (*type)) | |
9e386756 JB |
4361 | && (TYPE_INSTANCE_FLAGS (*type) == |
4362 | TYPE_INSTANCE_FLAGS (SYMBOL_TYPE (sym))) | |
3567439c | 4363 | && strcmp (SYMBOL_LINKAGE_NAME (sym), |
9e386756 | 4364 | typename) == 0) |
13a393b0 | 4365 | replace_type (*type, SYMBOL_TYPE (sym)); |
c906108c SS |
4366 | } |
4367 | } | |
4368 | } | |
4369 | } | |
4370 | break; | |
4371 | ||
4372 | default: | |
4373 | { | |
23136709 | 4374 | complaint (&symfile_complaints, |
e2e0b3e5 AC |
4375 | _("forward-referenced types left unresolved, " |
4376 | "type code %d."), | |
23136709 | 4377 | TYPE_CODE (*type)); |
c906108c SS |
4378 | } |
4379 | break; | |
4380 | } | |
4381 | } | |
4382 | ||
4383 | undef_types_length = 0; | |
4384 | } | |
4385 | ||
bf362611 JB |
4386 | /* Try to fix all the undefined types we ecountered while processing |
4387 | this unit. */ | |
4388 | ||
4389 | void | |
4390 | cleanup_undefined_types (void) | |
4391 | { | |
4392 | cleanup_undefined_types_1 (); | |
4393 | cleanup_undefined_types_noname (); | |
4394 | } | |
4395 | ||
c906108c SS |
4396 | /* Scan through all of the global symbols defined in the object file, |
4397 | assigning values to the debugging symbols that need to be assigned | |
4398 | to. Get these symbols from the minimal symbol table. */ | |
4399 | ||
4400 | void | |
fba45db2 | 4401 | scan_file_globals (struct objfile *objfile) |
c906108c SS |
4402 | { |
4403 | int hash; | |
4404 | struct minimal_symbol *msymbol; | |
507836c0 | 4405 | struct symbol *sym, *prev; |
c906108c SS |
4406 | struct objfile *resolve_objfile; |
4407 | ||
4408 | /* SVR4 based linkers copy referenced global symbols from shared | |
4409 | libraries to the main executable. | |
4410 | If we are scanning the symbols for a shared library, try to resolve | |
4411 | them from the minimal symbols of the main executable first. */ | |
4412 | ||
4413 | if (symfile_objfile && objfile != symfile_objfile) | |
4414 | resolve_objfile = symfile_objfile; | |
4415 | else | |
4416 | resolve_objfile = objfile; | |
4417 | ||
4418 | while (1) | |
4419 | { | |
4420 | /* Avoid expensive loop through all minimal symbols if there are | |
c5aa993b | 4421 | no unresolved symbols. */ |
c906108c SS |
4422 | for (hash = 0; hash < HASHSIZE; hash++) |
4423 | { | |
4424 | if (global_sym_chain[hash]) | |
4425 | break; | |
4426 | } | |
4427 | if (hash >= HASHSIZE) | |
4428 | return; | |
4429 | ||
3567439c | 4430 | ALL_OBJFILE_MSYMBOLS (resolve_objfile, msymbol) |
c906108c SS |
4431 | { |
4432 | QUIT; | |
4433 | ||
4434 | /* Skip static symbols. */ | |
4435 | switch (MSYMBOL_TYPE (msymbol)) | |
4436 | { | |
4437 | case mst_file_text: | |
4438 | case mst_file_data: | |
4439 | case mst_file_bss: | |
4440 | continue; | |
4441 | default: | |
4442 | break; | |
4443 | } | |
4444 | ||
4445 | prev = NULL; | |
4446 | ||
4447 | /* Get the hash index and check all the symbols | |
4448 | under that hash index. */ | |
4449 | ||
3567439c | 4450 | hash = hashname (SYMBOL_LINKAGE_NAME (msymbol)); |
c906108c SS |
4451 | |
4452 | for (sym = global_sym_chain[hash]; sym;) | |
4453 | { | |
3567439c DJ |
4454 | if (strcmp (SYMBOL_LINKAGE_NAME (msymbol), |
4455 | SYMBOL_LINKAGE_NAME (sym)) == 0) | |
c906108c | 4456 | { |
c906108c SS |
4457 | /* Splice this symbol out of the hash chain and |
4458 | assign the value we have to it. */ | |
4459 | if (prev) | |
4460 | { | |
4461 | SYMBOL_VALUE_CHAIN (prev) = SYMBOL_VALUE_CHAIN (sym); | |
4462 | } | |
4463 | else | |
4464 | { | |
4465 | global_sym_chain[hash] = SYMBOL_VALUE_CHAIN (sym); | |
4466 | } | |
c5aa993b | 4467 | |
c906108c SS |
4468 | /* Check to see whether we need to fix up a common block. */ |
4469 | /* Note: this code might be executed several times for | |
4470 | the same symbol if there are multiple references. */ | |
507836c0 | 4471 | if (sym) |
c906108c | 4472 | { |
507836c0 | 4473 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) |
c906108c | 4474 | { |
507836c0 | 4475 | fix_common_block (sym, |
c906108c SS |
4476 | SYMBOL_VALUE_ADDRESS (msymbol)); |
4477 | } | |
4478 | else | |
4479 | { | |
507836c0 | 4480 | SYMBOL_VALUE_ADDRESS (sym) |
c906108c SS |
4481 | = SYMBOL_VALUE_ADDRESS (msymbol); |
4482 | } | |
507836c0 | 4483 | SYMBOL_SECTION (sym) = SYMBOL_SECTION (msymbol); |
c906108c SS |
4484 | } |
4485 | ||
c906108c SS |
4486 | if (prev) |
4487 | { | |
4488 | sym = SYMBOL_VALUE_CHAIN (prev); | |
4489 | } | |
4490 | else | |
4491 | { | |
4492 | sym = global_sym_chain[hash]; | |
4493 | } | |
4494 | } | |
4495 | else | |
4496 | { | |
4497 | prev = sym; | |
4498 | sym = SYMBOL_VALUE_CHAIN (sym); | |
4499 | } | |
4500 | } | |
4501 | } | |
4502 | if (resolve_objfile == objfile) | |
4503 | break; | |
4504 | resolve_objfile = objfile; | |
4505 | } | |
4506 | ||
4507 | /* Change the storage class of any remaining unresolved globals to | |
4508 | LOC_UNRESOLVED and remove them from the chain. */ | |
4509 | for (hash = 0; hash < HASHSIZE; hash++) | |
4510 | { | |
4511 | sym = global_sym_chain[hash]; | |
4512 | while (sym) | |
4513 | { | |
4514 | prev = sym; | |
4515 | sym = SYMBOL_VALUE_CHAIN (sym); | |
4516 | ||
4517 | /* Change the symbol address from the misleading chain value | |
4518 | to address zero. */ | |
4519 | SYMBOL_VALUE_ADDRESS (prev) = 0; | |
4520 | ||
4521 | /* Complain about unresolved common block symbols. */ | |
4522 | if (SYMBOL_CLASS (prev) == LOC_STATIC) | |
4523 | SYMBOL_CLASS (prev) = LOC_UNRESOLVED; | |
4524 | else | |
23136709 | 4525 | complaint (&symfile_complaints, |
e2e0b3e5 | 4526 | _("%s: common block `%s' from global_sym_chain unresolved"), |
3567439c | 4527 | objfile->name, SYMBOL_PRINT_NAME (prev)); |
c906108c SS |
4528 | } |
4529 | } | |
4530 | memset (global_sym_chain, 0, sizeof (global_sym_chain)); | |
4531 | } | |
4532 | ||
4533 | /* Initialize anything that needs initializing when starting to read | |
4534 | a fresh piece of a symbol file, e.g. reading in the stuff corresponding | |
4535 | to a psymtab. */ | |
4536 | ||
4537 | void | |
fba45db2 | 4538 | stabsread_init (void) |
c906108c SS |
4539 | { |
4540 | } | |
4541 | ||
4542 | /* Initialize anything that needs initializing when a completely new | |
4543 | symbol file is specified (not just adding some symbols from another | |
4544 | file, e.g. a shared library). */ | |
4545 | ||
4546 | void | |
fba45db2 | 4547 | stabsread_new_init (void) |
c906108c SS |
4548 | { |
4549 | /* Empty the hash table of global syms looking for values. */ | |
4550 | memset (global_sym_chain, 0, sizeof (global_sym_chain)); | |
4551 | } | |
4552 | ||
4553 | /* Initialize anything that needs initializing at the same time as | |
4554 | start_symtab() is called. */ | |
4555 | ||
c5aa993b | 4556 | void |
fba45db2 | 4557 | start_stabs (void) |
c906108c SS |
4558 | { |
4559 | global_stabs = NULL; /* AIX COFF */ | |
4560 | /* Leave FILENUM of 0 free for builtin types and this file's types. */ | |
4561 | n_this_object_header_files = 1; | |
4562 | type_vector_length = 0; | |
4563 | type_vector = (struct type **) 0; | |
4564 | ||
4565 | /* FIXME: If common_block_name is not already NULL, we should complain(). */ | |
4566 | common_block_name = NULL; | |
c906108c SS |
4567 | } |
4568 | ||
4569 | /* Call after end_symtab() */ | |
4570 | ||
c5aa993b | 4571 | void |
fba45db2 | 4572 | end_stabs (void) |
c906108c SS |
4573 | { |
4574 | if (type_vector) | |
4575 | { | |
b8c9b27d | 4576 | xfree (type_vector); |
c906108c SS |
4577 | } |
4578 | type_vector = 0; | |
4579 | type_vector_length = 0; | |
4580 | previous_stab_code = 0; | |
4581 | } | |
4582 | ||
4583 | void | |
fba45db2 | 4584 | finish_global_stabs (struct objfile *objfile) |
c906108c SS |
4585 | { |
4586 | if (global_stabs) | |
4587 | { | |
4588 | patch_block_stabs (global_symbols, global_stabs, objfile); | |
b8c9b27d | 4589 | xfree (global_stabs); |
c906108c SS |
4590 | global_stabs = NULL; |
4591 | } | |
4592 | } | |
4593 | ||
7e1d63ec AF |
4594 | /* Find the end of the name, delimited by a ':', but don't match |
4595 | ObjC symbols which look like -[Foo bar::]:bla. */ | |
4596 | static char * | |
4597 | find_name_end (char *name) | |
4598 | { | |
4599 | char *s = name; | |
4600 | if (s[0] == '-' || *s == '+') | |
4601 | { | |
4602 | /* Must be an ObjC method symbol. */ | |
4603 | if (s[1] != '[') | |
4604 | { | |
8a3fe4f8 | 4605 | error (_("invalid symbol name \"%s\""), name); |
7e1d63ec AF |
4606 | } |
4607 | s = strchr (s, ']'); | |
4608 | if (s == NULL) | |
4609 | { | |
8a3fe4f8 | 4610 | error (_("invalid symbol name \"%s\""), name); |
7e1d63ec AF |
4611 | } |
4612 | return strchr (s, ':'); | |
4613 | } | |
4614 | else | |
4615 | { | |
4616 | return strchr (s, ':'); | |
4617 | } | |
4618 | } | |
4619 | ||
c906108c SS |
4620 | /* Initializer for this module */ |
4621 | ||
4622 | void | |
fba45db2 | 4623 | _initialize_stabsread (void) |
c906108c SS |
4624 | { |
4625 | undef_types_allocated = 20; | |
4626 | undef_types_length = 0; | |
4627 | undef_types = (struct type **) | |
4628 | xmalloc (undef_types_allocated * sizeof (struct type *)); | |
bf362611 JB |
4629 | |
4630 | noname_undefs_allocated = 20; | |
4631 | noname_undefs_length = 0; | |
4632 | noname_undefs = (struct nat *) | |
4633 | xmalloc (noname_undefs_allocated * sizeof (struct nat)); | |
c906108c | 4634 | } |