Commit | Line | Data |
---|---|---|
d2e6263c | 1 | /* Objective-C language support routines for GDB, the GNU debugger. |
b81654f1 | 2 | |
b811d2c2 | 3 | Copyright (C) 2002-2020 Free Software Foundation, Inc. |
b81654f1 | 4 | |
437666f8 AC |
5 | Contributed by Apple Computer, Inc. |
6 | Written by Michael Snyder. | |
b81654f1 | 7 | |
437666f8 | 8 | This file is part of GDB. |
b81654f1 | 9 | |
437666f8 AC |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 12 | the Free Software Foundation; either version 3 of the License, or |
437666f8 AC |
13 | (at your option) any later version. |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
b81654f1 MS |
22 | |
23 | #include "defs.h" | |
24 | #include "symtab.h" | |
25 | #include "gdbtypes.h" | |
26 | #include "expression.h" | |
27 | #include "parser-defs.h" | |
28 | #include "language.h" | |
a53b64ea | 29 | #include "varobj.h" |
d2e6263c | 30 | #include "c-lang.h" |
b81654f1 MS |
31 | #include "objc-lang.h" |
32 | #include "complaints.h" | |
33 | #include "value.h" | |
34 | #include "symfile.h" | |
35 | #include "objfiles.h" | |
55f6301a | 36 | #include "target.h" |
b81654f1 MS |
37 | #include "gdbcore.h" |
38 | #include "gdbcmd.h" | |
39 | #include "frame.h" | |
40 | #include "gdb_regex.h" | |
41 | #include "regcache.h" | |
fe898f56 | 42 | #include "block.h" |
04714b91 | 43 | #include "infcall.h" |
4e45ca2e | 44 | #include "valprint.h" |
529480d0 | 45 | #include "cli/cli-utils.h" |
b81654f1 MS |
46 | |
47 | #include <ctype.h> | |
9b2f8581 | 48 | #include <algorithm> |
b81654f1 MS |
49 | |
50 | struct objc_object { | |
51 | CORE_ADDR isa; | |
52 | }; | |
53 | ||
54 | struct objc_class { | |
55 | CORE_ADDR isa; | |
56 | CORE_ADDR super_class; | |
57 | CORE_ADDR name; | |
58 | long version; | |
59 | long info; | |
60 | long instance_size; | |
61 | CORE_ADDR ivars; | |
62 | CORE_ADDR methods; | |
63 | CORE_ADDR cache; | |
64 | CORE_ADDR protocols; | |
65 | }; | |
66 | ||
67 | struct objc_super { | |
68 | CORE_ADDR receiver; | |
fe978cb0 | 69 | CORE_ADDR theclass; |
b81654f1 MS |
70 | }; |
71 | ||
72 | struct objc_method { | |
73 | CORE_ADDR name; | |
74 | CORE_ADDR types; | |
75 | CORE_ADDR imp; | |
76 | }; | |
77 | ||
4c58e337 | 78 | static const struct objfile_key<unsigned int> objc_objfile_data; |
57a9e6af | 79 | |
d2e6263c MS |
80 | /* Lookup a structure type named "struct NAME", visible in lexical |
81 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
82 | suitably defined. */ | |
b81654f1 MS |
83 | |
84 | struct symbol * | |
a121b7c1 | 85 | lookup_struct_typedef (const char *name, const struct block *block, int noerr) |
b81654f1 | 86 | { |
f86f5ca3 | 87 | struct symbol *sym; |
b81654f1 | 88 | |
d12307c1 | 89 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
b81654f1 MS |
90 | |
91 | if (sym == NULL) | |
92 | { | |
93 | if (noerr) | |
94 | return 0; | |
95 | else | |
8a3fe4f8 | 96 | error (_("No struct type named %s."), name); |
b81654f1 | 97 | } |
78134374 | 98 | if (SYMBOL_TYPE (sym)->code () != TYPE_CODE_STRUCT) |
b81654f1 MS |
99 | { |
100 | if (noerr) | |
101 | return 0; | |
102 | else | |
8a3fe4f8 | 103 | error (_("This context has class, union or enum %s, not a struct."), |
d2e6263c | 104 | name); |
b81654f1 MS |
105 | } |
106 | return sym; | |
107 | } | |
108 | ||
109 | CORE_ADDR | |
a121b7c1 | 110 | lookup_objc_class (struct gdbarch *gdbarch, const char *classname) |
b81654f1 | 111 | { |
3b7538c0 | 112 | struct type *char_type = builtin_type (gdbarch)->builtin_char; |
b81654f1 MS |
113 | struct value * function, *classval; |
114 | ||
55f6301a | 115 | if (! target_has_execution ()) |
b81654f1 | 116 | { |
d2e6263c | 117 | /* Can't call into inferior to lookup class. */ |
b81654f1 MS |
118 | return 0; |
119 | } | |
120 | ||
3b7344d5 | 121 | if (lookup_minimal_symbol("objc_lookUpClass", 0, 0).minsym) |
3e3b026f | 122 | function = find_function_in_inferior("objc_lookUpClass", NULL); |
3b7344d5 | 123 | else if (lookup_minimal_symbol ("objc_lookup_class", 0, 0).minsym) |
3e3b026f | 124 | function = find_function_in_inferior("objc_lookup_class", NULL); |
b81654f1 MS |
125 | else |
126 | { | |
b98664d3 | 127 | complaint (_("no way to lookup Objective-C classes")); |
b81654f1 MS |
128 | return 0; |
129 | } | |
130 | ||
3b7538c0 | 131 | classval = value_string (classname, strlen (classname) + 1, char_type); |
b81654f1 | 132 | classval = value_coerce_array (classval); |
7022349d PA |
133 | return (CORE_ADDR) value_as_long (call_function_by_hand (function, |
134 | NULL, | |
e71585ff | 135 | classval)); |
b81654f1 MS |
136 | } |
137 | ||
c253954e | 138 | CORE_ADDR |
a121b7c1 | 139 | lookup_child_selector (struct gdbarch *gdbarch, const char *selname) |
b81654f1 | 140 | { |
3b7538c0 | 141 | struct type *char_type = builtin_type (gdbarch)->builtin_char; |
b81654f1 MS |
142 | struct value * function, *selstring; |
143 | ||
55f6301a | 144 | if (! target_has_execution ()) |
b81654f1 | 145 | { |
d2e6263c | 146 | /* Can't call into inferior to lookup selector. */ |
b81654f1 MS |
147 | return 0; |
148 | } | |
149 | ||
3b7344d5 | 150 | if (lookup_minimal_symbol("sel_getUid", 0, 0).minsym) |
3e3b026f | 151 | function = find_function_in_inferior("sel_getUid", NULL); |
3b7344d5 | 152 | else if (lookup_minimal_symbol ("sel_get_any_uid", 0, 0).minsym) |
3e3b026f | 153 | function = find_function_in_inferior("sel_get_any_uid", NULL); |
b81654f1 MS |
154 | else |
155 | { | |
b98664d3 | 156 | complaint (_("no way to lookup Objective-C selectors")); |
b81654f1 MS |
157 | return 0; |
158 | } | |
159 | ||
d2e6263c | 160 | selstring = value_coerce_array (value_string (selname, |
0df8b418 MS |
161 | strlen (selname) + 1, |
162 | char_type)); | |
e71585ff | 163 | return value_as_long (call_function_by_hand (function, NULL, selstring)); |
b81654f1 MS |
164 | } |
165 | ||
166 | struct value * | |
3b7538c0 | 167 | value_nsstring (struct gdbarch *gdbarch, char *ptr, int len) |
b81654f1 | 168 | { |
3b7538c0 | 169 | struct type *char_type = builtin_type (gdbarch)->builtin_char; |
b81654f1 MS |
170 | struct value *stringValue[3]; |
171 | struct value *function, *nsstringValue; | |
172 | struct symbol *sym; | |
173 | struct type *type; | |
174 | ||
55f6301a | 175 | if (!target_has_execution ()) |
d2e6263c | 176 | return 0; /* Can't call into inferior to create NSString. */ |
b81654f1 | 177 | |
3b7538c0 | 178 | stringValue[2] = value_string(ptr, len, char_type); |
b81654f1 | 179 | stringValue[2] = value_coerce_array(stringValue[2]); |
d2e6263c | 180 | /* _NSNewStringFromCString replaces "istr" after Lantern2A. */ |
3b7344d5 | 181 | if (lookup_minimal_symbol("_NSNewStringFromCString", 0, 0).minsym) |
b81654f1 | 182 | { |
3b7538c0 | 183 | function = find_function_in_inferior("_NSNewStringFromCString", NULL); |
e71585ff | 184 | nsstringValue = call_function_by_hand(function, NULL, stringValue[2]); |
b81654f1 | 185 | } |
3b7344d5 | 186 | else if (lookup_minimal_symbol("istr", 0, 0).minsym) |
b81654f1 | 187 | { |
3b7538c0 | 188 | function = find_function_in_inferior("istr", NULL); |
e71585ff | 189 | nsstringValue = call_function_by_hand(function, NULL, stringValue[2]); |
b81654f1 | 190 | } |
3b7344d5 | 191 | else if (lookup_minimal_symbol("+[NSString stringWithCString:]", 0, 0).minsym) |
b81654f1 | 192 | { |
3e3b026f | 193 | function |
3b7538c0 UW |
194 | = find_function_in_inferior("+[NSString stringWithCString:]", NULL); |
195 | type = builtin_type (gdbarch)->builtin_long; | |
3e3b026f | 196 | |
b81654f1 | 197 | stringValue[0] = value_from_longest |
3b7538c0 | 198 | (type, lookup_objc_class (gdbarch, "NSString")); |
b81654f1 | 199 | stringValue[1] = value_from_longest |
3b7538c0 | 200 | (type, lookup_child_selector (gdbarch, "stringWithCString:")); |
e71585ff | 201 | nsstringValue = call_function_by_hand(function, NULL, stringValue); |
b81654f1 MS |
202 | } |
203 | else | |
8a3fe4f8 | 204 | error (_("NSString: internal error -- no way to create new NSString")); |
b81654f1 | 205 | |
3e3b026f UW |
206 | sym = lookup_struct_typedef("NSString", 0, 1); |
207 | if (sym == NULL) | |
208 | sym = lookup_struct_typedef("NXString", 0, 1); | |
209 | if (sym == NULL) | |
210 | type = builtin_type (gdbarch)->builtin_data_ptr; | |
211 | else | |
212 | type = lookup_pointer_type(SYMBOL_TYPE (sym)); | |
213 | ||
04624583 | 214 | deprecated_set_value_type (nsstringValue, type); |
b81654f1 MS |
215 | return nsstringValue; |
216 | } | |
217 | ||
d2e6263c | 218 | /* Objective-C name demangling. */ |
b81654f1 MS |
219 | |
220 | char * | |
9a3d7dfd | 221 | objc_demangle (const char *mangled, int options) |
b81654f1 MS |
222 | { |
223 | char *demangled, *cp; | |
224 | ||
225 | if (mangled[0] == '_' && | |
226 | (mangled[1] == 'i' || mangled[1] == 'c') && | |
227 | mangled[2] == '_') | |
228 | { | |
224c3ddb | 229 | cp = demangled = (char *) xmalloc (strlen (mangled) + 2); |
b81654f1 MS |
230 | |
231 | if (mangled[1] == 'i') | |
232 | *cp++ = '-'; /* for instance method */ | |
233 | else | |
234 | *cp++ = '+'; /* for class method */ | |
235 | ||
236 | *cp++ = '['; /* opening left brace */ | |
0df8b418 | 237 | strcpy(cp, mangled+3); /* Tack on the rest of the mangled name. */ |
b81654f1 MS |
238 | |
239 | while (*cp && *cp == '_') | |
0df8b418 MS |
240 | cp++; /* Skip any initial underbars in class |
241 | name. */ | |
b81654f1 | 242 | |
7248f48e | 243 | cp = strchr(cp, '_'); |
0df8b418 | 244 | if (!cp) /* Find first non-initial underbar. */ |
b81654f1 | 245 | { |
7248f48e | 246 | xfree(demangled); /* not mangled name */ |
b81654f1 MS |
247 | return NULL; |
248 | } | |
0df8b418 | 249 | if (cp[1] == '_') /* Easy case: no category name. */ |
5cc80db3 | 250 | { |
0df8b418 | 251 | *cp++ = ' '; /* Replace two '_' with one ' '. */ |
5cc80db3 MS |
252 | strcpy(cp, mangled + (cp - demangled) + 2); |
253 | } | |
254 | else | |
255 | { | |
0df8b418 | 256 | *cp++ = '('; /* Less easy case: category name. */ |
5cc80db3 MS |
257 | cp = strchr(cp, '_'); |
258 | if (!cp) | |
259 | { | |
260 | xfree(demangled); /* not mangled name */ | |
261 | return NULL; | |
262 | } | |
263 | *cp++ = ')'; | |
0df8b418 MS |
264 | *cp++ = ' '; /* Overwriting 1st char of method name... */ |
265 | strcpy(cp, mangled + (cp - demangled)); /* Get it back. */ | |
5cc80db3 | 266 | } |
b81654f1 MS |
267 | |
268 | while (*cp && *cp == '_') | |
0df8b418 MS |
269 | cp++; /* Skip any initial underbars in |
270 | method name. */ | |
b81654f1 MS |
271 | |
272 | for (; *cp; cp++) | |
273 | if (*cp == '_') | |
0df8b418 | 274 | *cp = ':'; /* Replace remaining '_' with ':'. */ |
b81654f1 MS |
275 | |
276 | *cp++ = ']'; /* closing right brace */ | |
277 | *cp++ = 0; /* string terminator */ | |
278 | return demangled; | |
279 | } | |
280 | else | |
d2e6263c | 281 | return NULL; /* Not an objc mangled name. */ |
b81654f1 MS |
282 | } |
283 | ||
b81654f1 MS |
284 | |
285 | /* Table mapping opcodes into strings for printing operators | |
286 | and precedences of the operators. */ | |
287 | ||
288 | static const struct op_print objc_op_print_tab[] = | |
289 | { | |
290 | {",", BINOP_COMMA, PREC_COMMA, 0}, | |
291 | {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, | |
292 | {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, | |
293 | {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, | |
294 | {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0}, | |
295 | {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0}, | |
296 | {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0}, | |
297 | {"==", BINOP_EQUAL, PREC_EQUAL, 0}, | |
298 | {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0}, | |
299 | {"<=", BINOP_LEQ, PREC_ORDER, 0}, | |
300 | {">=", BINOP_GEQ, PREC_ORDER, 0}, | |
301 | {">", BINOP_GTR, PREC_ORDER, 0}, | |
302 | {"<", BINOP_LESS, PREC_ORDER, 0}, | |
303 | {">>", BINOP_RSH, PREC_SHIFT, 0}, | |
304 | {"<<", BINOP_LSH, PREC_SHIFT, 0}, | |
305 | {"+", BINOP_ADD, PREC_ADD, 0}, | |
306 | {"-", BINOP_SUB, PREC_ADD, 0}, | |
307 | {"*", BINOP_MUL, PREC_MUL, 0}, | |
308 | {"/", BINOP_DIV, PREC_MUL, 0}, | |
309 | {"%", BINOP_REM, PREC_MUL, 0}, | |
310 | {"@", BINOP_REPEAT, PREC_REPEAT, 0}, | |
311 | {"-", UNOP_NEG, PREC_PREFIX, 0}, | |
312 | {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, | |
313 | {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0}, | |
314 | {"*", UNOP_IND, PREC_PREFIX, 0}, | |
315 | {"&", UNOP_ADDR, PREC_PREFIX, 0}, | |
316 | {"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0}, | |
317 | {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0}, | |
318 | {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0}, | |
e8f3fcdd | 319 | {NULL, OP_NULL, PREC_NULL, 0} |
b81654f1 MS |
320 | }; |
321 | ||
0874fd07 AB |
322 | /* Class representing the Objective-C language. */ |
323 | ||
324 | class objc_language : public language_defn | |
325 | { | |
326 | public: | |
327 | objc_language () | |
0e25e767 | 328 | : language_defn (language_objc) |
0874fd07 | 329 | { /* Nothing. */ } |
1fb314aa | 330 | |
6f7664a9 AB |
331 | /* See language.h. */ |
332 | ||
333 | const char *name () const override | |
334 | { return "objective-c"; } | |
335 | ||
336 | /* See language.h. */ | |
337 | ||
338 | const char *natural_name () const override | |
339 | { return "Objective-C"; } | |
340 | ||
e171d6f1 AB |
341 | /* See language.h. */ |
342 | ||
343 | const std::vector<const char *> &filename_extensions () const override | |
344 | { | |
345 | static const std::vector<const char *> extensions = { ".m" }; | |
346 | return extensions; | |
347 | } | |
348 | ||
1fb314aa AB |
349 | /* See language.h. */ |
350 | void language_arch_info (struct gdbarch *gdbarch, | |
351 | struct language_arch_info *lai) const override | |
352 | { | |
353 | c_language_arch_info (gdbarch, lai); | |
354 | } | |
6f827019 AB |
355 | |
356 | /* See language.h. */ | |
357 | bool sniff_from_mangled_name (const char *mangled, | |
358 | char **demangled) const override | |
359 | { | |
360 | *demangled = objc_demangle (mangled, 0); | |
361 | return *demangled != NULL; | |
362 | } | |
fbfb0a46 AB |
363 | |
364 | /* See language.h. */ | |
365 | ||
0a50df5d AB |
366 | char *demangle (const char *mangled, int options) const override |
367 | { | |
368 | return objc_demangle (mangled, options); | |
369 | } | |
370 | ||
371 | /* See language.h. */ | |
372 | ||
fbfb0a46 AB |
373 | void print_type (struct type *type, const char *varstring, |
374 | struct ui_file *stream, int show, int level, | |
375 | const struct type_print_options *flags) const override | |
376 | { | |
377 | c_print_type (type, varstring, stream, show, level, flags); | |
378 | } | |
f6eee2d0 AB |
379 | |
380 | /* See language.h. */ | |
381 | ||
382 | CORE_ADDR skip_trampoline (struct frame_info *frame, | |
383 | CORE_ADDR stop_pc) const override | |
384 | { | |
385 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
386 | CORE_ADDR real_stop_pc; | |
387 | CORE_ADDR method_stop_pc; | |
388 | ||
389 | /* Determine if we are currently in the Objective-C dispatch function. | |
390 | If so, get the address of the method function that the dispatcher | |
391 | would call and use that as the function to step into instead. Also | |
392 | skip over the trampoline for the function (if any). This is better | |
393 | for the user since they are only interested in stepping into the | |
394 | method function anyway. */ | |
395 | ||
396 | real_stop_pc = gdbarch_skip_trampoline_code (gdbarch, frame, stop_pc); | |
397 | ||
398 | if (real_stop_pc != 0) | |
399 | find_objc_msgcall (real_stop_pc, &method_stop_pc); | |
400 | else | |
401 | find_objc_msgcall (stop_pc, &method_stop_pc); | |
402 | ||
403 | if (method_stop_pc) | |
404 | { | |
405 | real_stop_pc = gdbarch_skip_trampoline_code | |
406 | (gdbarch, frame, method_stop_pc); | |
407 | if (real_stop_pc == 0) | |
408 | real_stop_pc = method_stop_pc; | |
409 | } | |
410 | ||
411 | return real_stop_pc; | |
412 | } | |
5bae7c4e AB |
413 | |
414 | /* See language.h. */ | |
415 | ||
416 | const char *name_of_this () const override | |
417 | { return "self"; } | |
1ac14a04 AB |
418 | |
419 | /* See language.h. */ | |
420 | ||
421 | enum macro_expansion macro_expansion () const override | |
422 | { return macro_expansion_c; } | |
b7c6e27d AB |
423 | |
424 | /* See language.h. */ | |
425 | ||
426 | const struct op_print *opcode_print_table () const override | |
427 | { return c_op_print_tab; } | |
0874fd07 AB |
428 | }; |
429 | ||
430 | /* Single instance of the class representing the Objective-C language. */ | |
431 | ||
432 | static objc_language objc_language_defn; | |
433 | ||
b81654f1 MS |
434 | /* |
435 | * ObjC: | |
0df8b418 | 436 | * Following functions help construct Objective-C message calls. |
b81654f1 MS |
437 | */ |
438 | ||
d2e6263c | 439 | struct selname /* For parsing Objective-C. */ |
b81654f1 MS |
440 | { |
441 | struct selname *next; | |
442 | char *msglist_sel; | |
443 | int msglist_len; | |
444 | }; | |
445 | ||
446 | static int msglist_len; | |
447 | static struct selname *selname_chain; | |
448 | static char *msglist_sel; | |
449 | ||
450 | void | |
451 | start_msglist(void) | |
452 | { | |
8d749320 | 453 | struct selname *newobj = XNEW (struct selname); |
b81654f1 | 454 | |
fe978cb0 PA |
455 | newobj->next = selname_chain; |
456 | newobj->msglist_len = msglist_len; | |
457 | newobj->msglist_sel = msglist_sel; | |
b81654f1 MS |
458 | msglist_len = 0; |
459 | msglist_sel = (char *)xmalloc(1); | |
460 | *msglist_sel = 0; | |
fe978cb0 | 461 | selname_chain = newobj; |
b81654f1 MS |
462 | } |
463 | ||
464 | void | |
465 | add_msglist(struct stoken *str, int addcolon) | |
466 | { | |
d7561cbb KS |
467 | char *s; |
468 | const char *p; | |
b81654f1 MS |
469 | int len, plen; |
470 | ||
5cc80db3 MS |
471 | if (str == 0) /* Unnamed arg, or... */ |
472 | { | |
473 | if (addcolon == 0) /* variable number of args. */ | |
474 | { | |
475 | msglist_len++; | |
476 | return; | |
477 | } | |
478 | p = ""; | |
479 | plen = 0; | |
480 | } | |
481 | else | |
482 | { | |
483 | p = str->ptr; | |
484 | plen = str->length; | |
b81654f1 | 485 | } |
b81654f1 MS |
486 | len = plen + strlen(msglist_sel) + 2; |
487 | s = (char *)xmalloc(len); | |
488 | strcpy(s, msglist_sel); | |
489 | strncat(s, p, plen); | |
7248f48e | 490 | xfree(msglist_sel); |
b81654f1 | 491 | msglist_sel = s; |
5cc80db3 MS |
492 | if (addcolon) |
493 | { | |
494 | s[len-2] = ':'; | |
495 | s[len-1] = 0; | |
496 | msglist_len++; | |
497 | } | |
498 | else | |
b81654f1 MS |
499 | s[len-2] = '\0'; |
500 | } | |
501 | ||
502 | int | |
410a0ff2 | 503 | end_msglist (struct parser_state *ps) |
b81654f1 | 504 | { |
f86f5ca3 PH |
505 | int val = msglist_len; |
506 | struct selname *sel = selname_chain; | |
507 | char *p = msglist_sel; | |
c253954e | 508 | CORE_ADDR selid; |
b81654f1 MS |
509 | |
510 | selname_chain = sel->next; | |
511 | msglist_len = sel->msglist_len; | |
512 | msglist_sel = sel->msglist_sel; | |
fa9f5be6 | 513 | selid = lookup_child_selector (ps->gdbarch (), p); |
b81654f1 | 514 | if (!selid) |
8a3fe4f8 | 515 | error (_("Can't find selector \"%s\""), p); |
410a0ff2 | 516 | write_exp_elt_longcst (ps, selid); |
7248f48e | 517 | xfree(p); |
410a0ff2 | 518 | write_exp_elt_longcst (ps, val); /* Number of args */ |
7248f48e | 519 | xfree(sel); |
b81654f1 MS |
520 | |
521 | return val; | |
522 | } | |
523 | ||
524 | /* | |
0d5cff50 | 525 | * Function: specialcmp (const char *a, const char *b) |
b81654f1 MS |
526 | * |
527 | * Special strcmp: treats ']' and ' ' as end-of-string. | |
d2e6263c | 528 | * Used for qsorting lists of objc methods (either by class or selector). |
b81654f1 MS |
529 | */ |
530 | ||
b9362cc7 | 531 | static int |
0d5cff50 | 532 | specialcmp (const char *a, const char *b) |
b81654f1 MS |
533 | { |
534 | while (*a && *a != ' ' && *a != ']' && *b && *b != ' ' && *b != ']') | |
535 | { | |
536 | if (*a != *b) | |
537 | return *a - *b; | |
538 | a++, b++; | |
539 | } | |
540 | if (*a && *a != ' ' && *a != ']') | |
0df8b418 | 541 | return 1; /* a is longer therefore greater. */ |
b81654f1 | 542 | if (*b && *b != ' ' && *b != ']') |
0df8b418 MS |
543 | return -1; /* a is shorter therefore lesser. */ |
544 | return 0; /* a and b are identical. */ | |
b81654f1 MS |
545 | } |
546 | ||
547 | /* | |
36e53c63 | 548 | * Function: compare_selectors (const void *, const void *) |
b81654f1 | 549 | * |
d2e6263c MS |
550 | * Comparison function for use with qsort. Arguments are symbols or |
551 | * msymbols Compares selector part of objc method name alphabetically. | |
b81654f1 MS |
552 | */ |
553 | ||
554 | static int | |
36e53c63 | 555 | compare_selectors (const void *a, const void *b) |
b81654f1 | 556 | { |
0d5cff50 | 557 | const char *aname, *bname; |
b81654f1 | 558 | |
987012b8 CB |
559 | aname = (*(struct symbol **) a)->print_name (); |
560 | bname = (*(struct symbol **) b)->print_name (); | |
7248f48e | 561 | if (aname == NULL || bname == NULL) |
8a3fe4f8 | 562 | error (_("internal: compare_selectors(1)")); |
b81654f1 | 563 | |
7248f48e AF |
564 | aname = strchr(aname, ' '); |
565 | bname = strchr(bname, ' '); | |
566 | if (aname == NULL || bname == NULL) | |
8a3fe4f8 | 567 | error (_("internal: compare_selectors(2)")); |
b81654f1 MS |
568 | |
569 | return specialcmp (aname+1, bname+1); | |
570 | } | |
571 | ||
572 | /* | |
573 | * Function: selectors_info (regexp, from_tty) | |
574 | * | |
d2e6263c MS |
575 | * Implements the "Info selectors" command. Takes an optional regexp |
576 | * arg. Lists all objective c selectors that match the regexp. Works | |
577 | * by grepping thru all symbols for objective c methods. Output list | |
578 | * is sorted and uniqued. | |
b81654f1 MS |
579 | */ |
580 | ||
581 | static void | |
1d12d88f | 582 | info_selectors_command (const char *regexp, int from_tty) |
b81654f1 | 583 | { |
0d5cff50 | 584 | const char *name; |
b81654f1 MS |
585 | char *val; |
586 | int matches = 0; | |
587 | int maxlen = 0; | |
588 | int ix; | |
589 | char myregexp[2048]; | |
590 | char asel[256]; | |
591 | struct symbol **sym_arr; | |
592 | int plusminus = 0; | |
593 | ||
594 | if (regexp == NULL) | |
d2e6263c | 595 | strcpy(myregexp, ".*]"); /* Null input, match all objc methods. */ |
b81654f1 MS |
596 | else |
597 | { | |
d2e6263c MS |
598 | if (*regexp == '+' || *regexp == '-') |
599 | { /* User wants only class methods or only instance methods. */ | |
b81654f1 MS |
600 | plusminus = *regexp++; |
601 | while (*regexp == ' ' || *regexp == '\t') | |
602 | regexp++; | |
603 | } | |
604 | if (*regexp == '\0') | |
605 | strcpy(myregexp, ".*]"); | |
606 | else | |
607 | { | |
a9dc8dcc | 608 | /* Allow a few extra bytes because of the strcat below. */ |
28288541 | 609 | if (sizeof (myregexp) < strlen (regexp) + 4) |
20937029 JK |
610 | error (_("Regexp is too long: %s"), regexp); |
611 | strcpy(myregexp, regexp); | |
b81654f1 MS |
612 | if (myregexp[strlen(myregexp) - 1] == '$') /* end of selector */ |
613 | myregexp[strlen(myregexp) - 1] = ']'; /* end of method name */ | |
614 | else | |
615 | strcat(myregexp, ".*]"); | |
616 | } | |
617 | } | |
618 | ||
619 | if (regexp != NULL) | |
5e488a7b AC |
620 | { |
621 | val = re_comp (myregexp); | |
622 | if (val != 0) | |
8a3fe4f8 | 623 | error (_("Invalid regexp (%s): %s"), val, regexp); |
5e488a7b | 624 | } |
b81654f1 | 625 | |
d2e6263c | 626 | /* First time thru is JUST to get max length and count. */ |
2030c079 | 627 | for (objfile *objfile : current_program_space->objfiles ()) |
b81654f1 | 628 | { |
7932255d | 629 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
b81654f1 | 630 | { |
5325b9bf | 631 | QUIT; |
c9d95fa3 | 632 | name = msymbol->natural_name (); |
5325b9bf TT |
633 | if (name |
634 | && (name[0] == '-' || name[0] == '+') | |
635 | && name[1] == '[') /* Got a method name. */ | |
50412521 | 636 | { |
5325b9bf TT |
637 | /* Filter for class/instance methods. */ |
638 | if (plusminus && name[0] != plusminus) | |
639 | continue; | |
640 | /* Find selector part. */ | |
641 | name = (char *) strchr (name+2, ' '); | |
642 | if (name == NULL) | |
643 | { | |
644 | complaint (_("Bad method name '%s'"), | |
c9d95fa3 | 645 | msymbol->natural_name ()); |
5325b9bf TT |
646 | continue; |
647 | } | |
648 | if (regexp == NULL || re_exec(++name) != 0) | |
649 | { | |
650 | const char *mystart = name; | |
651 | const char *myend = strchr (mystart, ']'); | |
b81654f1 | 652 | |
5325b9bf TT |
653 | if (myend && (myend - mystart > maxlen)) |
654 | maxlen = myend - mystart; /* Get longest selector. */ | |
655 | matches++; | |
656 | } | |
b81654f1 MS |
657 | } |
658 | } | |
659 | } | |
660 | if (matches) | |
661 | { | |
a3f17187 | 662 | printf_filtered (_("Selectors matching \"%s\":\n\n"), |
b81654f1 MS |
663 | regexp ? regexp : "*"); |
664 | ||
8d749320 | 665 | sym_arr = XALLOCAVEC (struct symbol *, matches); |
b81654f1 | 666 | matches = 0; |
2030c079 | 667 | for (objfile *objfile : current_program_space->objfiles ()) |
b81654f1 | 668 | { |
7932255d | 669 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
b81654f1 | 670 | { |
5325b9bf | 671 | QUIT; |
c9d95fa3 | 672 | name = msymbol->natural_name (); |
5325b9bf TT |
673 | if (name && |
674 | (name[0] == '-' || name[0] == '+') && | |
675 | name[1] == '[') /* Got a method name. */ | |
676 | { | |
677 | /* Filter for class/instance methods. */ | |
678 | if (plusminus && name[0] != plusminus) | |
679 | continue; | |
680 | /* Find selector part. */ | |
681 | name = (char *) strchr(name+2, ' '); | |
682 | if (regexp == NULL || re_exec(++name) != 0) | |
683 | sym_arr[matches++] = (struct symbol *) msymbol; | |
684 | } | |
b81654f1 MS |
685 | } |
686 | } | |
687 | ||
688 | qsort (sym_arr, matches, sizeof (struct minimal_symbol *), | |
689 | compare_selectors); | |
d2e6263c MS |
690 | /* Prevent compare on first iteration. */ |
691 | asel[0] = 0; | |
692 | for (ix = 0; ix < matches; ix++) /* Now do the output. */ | |
b81654f1 MS |
693 | { |
694 | char *p = asel; | |
695 | ||
696 | QUIT; | |
987012b8 | 697 | name = sym_arr[ix]->natural_name (); |
b81654f1 MS |
698 | name = strchr (name, ' ') + 1; |
699 | if (p[0] && specialcmp(name, p) == 0) | |
d2e6263c | 700 | continue; /* Seen this one already (not unique). */ |
b81654f1 | 701 | |
d2e6263c MS |
702 | /* Copy selector part. */ |
703 | while (*name && *name != ']') | |
b81654f1 MS |
704 | *p++ = *name++; |
705 | *p++ = '\0'; | |
d2e6263c MS |
706 | /* Print in columns. */ |
707 | puts_filtered_tabular(asel, maxlen + 1, 0); | |
b81654f1 MS |
708 | } |
709 | begin_line(); | |
710 | } | |
711 | else | |
0df8b418 MS |
712 | printf_filtered (_("No selectors matching \"%s\"\n"), |
713 | regexp ? regexp : "*"); | |
b81654f1 MS |
714 | } |
715 | ||
716 | /* | |
36e53c63 | 717 | * Function: compare_classes (const void *, const void *) |
b81654f1 | 718 | * |
d2e6263c MS |
719 | * Comparison function for use with qsort. Arguments are symbols or |
720 | * msymbols Compares class part of objc method name alphabetically. | |
b81654f1 MS |
721 | */ |
722 | ||
723 | static int | |
36e53c63 | 724 | compare_classes (const void *a, const void *b) |
b81654f1 | 725 | { |
0d5cff50 | 726 | const char *aname, *bname; |
b81654f1 | 727 | |
987012b8 CB |
728 | aname = (*(struct symbol **) a)->print_name (); |
729 | bname = (*(struct symbol **) b)->print_name (); | |
7248f48e | 730 | if (aname == NULL || bname == NULL) |
8a3fe4f8 | 731 | error (_("internal: compare_classes(1)")); |
b81654f1 MS |
732 | |
733 | return specialcmp (aname+1, bname+1); | |
734 | } | |
735 | ||
736 | /* | |
737 | * Function: classes_info(regexp, from_tty) | |
738 | * | |
739 | * Implements the "info classes" command for objective c classes. | |
740 | * Lists all objective c classes that match the optional regexp. | |
d2e6263c MS |
741 | * Works by grepping thru the list of objective c methods. List will |
742 | * be sorted and uniqued (since one class may have many methods). | |
743 | * BUGS: will not list a class that has no methods. | |
b81654f1 MS |
744 | */ |
745 | ||
746 | static void | |
1d12d88f | 747 | info_classes_command (const char *regexp, int from_tty) |
b81654f1 | 748 | { |
0d5cff50 | 749 | const char *name; |
b81654f1 MS |
750 | char *val; |
751 | int matches = 0; | |
752 | int maxlen = 0; | |
753 | int ix; | |
754 | char myregexp[2048]; | |
755 | char aclass[256]; | |
756 | struct symbol **sym_arr; | |
757 | ||
758 | if (regexp == NULL) | |
d2e6263c | 759 | strcpy(myregexp, ".* "); /* Null input: match all objc classes. */ |
b81654f1 MS |
760 | else |
761 | { | |
a9dc8dcc | 762 | /* Allow a few extra bytes because of the strcat below. */ |
28288541 MS |
763 | if (sizeof (myregexp) < strlen (regexp) + 4) |
764 | error (_("Regexp is too long: %s"), regexp); | |
b81654f1 MS |
765 | strcpy(myregexp, regexp); |
766 | if (myregexp[strlen(myregexp) - 1] == '$') | |
d2e6263c | 767 | /* In the method name, the end of the class name is marked by ' '. */ |
b81654f1 MS |
768 | myregexp[strlen(myregexp) - 1] = ' '; |
769 | else | |
770 | strcat(myregexp, ".* "); | |
771 | } | |
772 | ||
773 | if (regexp != NULL) | |
5e488a7b AC |
774 | { |
775 | val = re_comp (myregexp); | |
776 | if (val != 0) | |
8a3fe4f8 | 777 | error (_("Invalid regexp (%s): %s"), val, regexp); |
5e488a7b | 778 | } |
b81654f1 | 779 | |
d2e6263c | 780 | /* First time thru is JUST to get max length and count. */ |
2030c079 | 781 | for (objfile *objfile : current_program_space->objfiles ()) |
b81654f1 | 782 | { |
7932255d | 783 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
784 | { |
785 | QUIT; | |
c9d95fa3 | 786 | name = msymbol->natural_name (); |
5325b9bf TT |
787 | if (name && |
788 | (name[0] == '-' || name[0] == '+') && | |
789 | name[1] == '[') /* Got a method name. */ | |
790 | if (regexp == NULL || re_exec(name+2) != 0) | |
791 | { | |
792 | /* Compute length of classname part. */ | |
793 | const char *mystart = name + 2; | |
794 | const char *myend = strchr (mystart, ' '); | |
b81654f1 | 795 | |
5325b9bf TT |
796 | if (myend && (myend - mystart > maxlen)) |
797 | maxlen = myend - mystart; | |
798 | matches++; | |
799 | } | |
800 | } | |
b81654f1 MS |
801 | } |
802 | if (matches) | |
803 | { | |
a3f17187 | 804 | printf_filtered (_("Classes matching \"%s\":\n\n"), |
b81654f1 | 805 | regexp ? regexp : "*"); |
8d749320 | 806 | sym_arr = XALLOCAVEC (struct symbol *, matches); |
b81654f1 | 807 | matches = 0; |
2030c079 | 808 | for (objfile *objfile : current_program_space->objfiles ()) |
b81654f1 | 809 | { |
7932255d | 810 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
811 | { |
812 | QUIT; | |
c9d95fa3 | 813 | name = msymbol->natural_name (); |
5325b9bf TT |
814 | if (name && |
815 | (name[0] == '-' || name[0] == '+') && | |
816 | name[1] == '[') /* Got a method name. */ | |
817 | if (regexp == NULL || re_exec(name+2) != 0) | |
818 | sym_arr[matches++] = (struct symbol *) msymbol; | |
819 | } | |
b81654f1 MS |
820 | } |
821 | ||
822 | qsort (sym_arr, matches, sizeof (struct minimal_symbol *), | |
823 | compare_classes); | |
d2e6263c MS |
824 | /* Prevent compare on first iteration. */ |
825 | aclass[0] = 0; | |
826 | for (ix = 0; ix < matches; ix++) /* Now do the output. */ | |
b81654f1 MS |
827 | { |
828 | char *p = aclass; | |
829 | ||
830 | QUIT; | |
987012b8 | 831 | name = sym_arr[ix]->natural_name (); |
b81654f1 MS |
832 | name += 2; |
833 | if (p[0] && specialcmp(name, p) == 0) | |
d2e6263c | 834 | continue; /* Seen this one already (not unique). */ |
b81654f1 | 835 | |
d2e6263c MS |
836 | /* Copy class part of method name. */ |
837 | while (*name && *name != ' ') | |
b81654f1 MS |
838 | *p++ = *name++; |
839 | *p++ = '\0'; | |
d2e6263c MS |
840 | /* Print in columns. */ |
841 | puts_filtered_tabular(aclass, maxlen + 1, 0); | |
b81654f1 MS |
842 | } |
843 | begin_line(); | |
844 | } | |
845 | else | |
a3f17187 | 846 | printf_filtered (_("No classes matching \"%s\"\n"), regexp ? regexp : "*"); |
b81654f1 MS |
847 | } |
848 | ||
f8eba3c6 | 849 | static char * |
b81654f1 MS |
850 | parse_selector (char *method, char **selector) |
851 | { | |
852 | char *s1 = NULL; | |
853 | char *s2 = NULL; | |
854 | int found_quote = 0; | |
855 | ||
856 | char *nselector = NULL; | |
857 | ||
e8f3fcdd | 858 | gdb_assert (selector != NULL); |
b81654f1 MS |
859 | |
860 | s1 = method; | |
861 | ||
529480d0 | 862 | s1 = skip_spaces (s1); |
b81654f1 MS |
863 | if (*s1 == '\'') |
864 | { | |
865 | found_quote = 1; | |
866 | s1++; | |
867 | } | |
529480d0 | 868 | s1 = skip_spaces (s1); |
b81654f1 MS |
869 | |
870 | nselector = s1; | |
871 | s2 = s1; | |
872 | ||
5cc80db3 MS |
873 | for (;;) |
874 | { | |
875 | if (isalnum (*s2) || (*s2 == '_') || (*s2 == ':')) | |
876 | *s1++ = *s2; | |
877 | else if (isspace (*s2)) | |
878 | ; | |
879 | else if ((*s2 == '\0') || (*s2 == '\'')) | |
880 | break; | |
881 | else | |
882 | return NULL; | |
883 | s2++; | |
884 | } | |
b81654f1 MS |
885 | *s1++ = '\0'; |
886 | ||
529480d0 | 887 | s2 = skip_spaces (s2); |
b81654f1 MS |
888 | if (found_quote) |
889 | { | |
890 | if (*s2 == '\'') | |
891 | s2++; | |
529480d0 | 892 | s2 = skip_spaces (s2); |
b81654f1 MS |
893 | } |
894 | ||
895 | if (selector != NULL) | |
896 | *selector = nselector; | |
897 | ||
898 | return s2; | |
899 | } | |
900 | ||
f8eba3c6 | 901 | static char * |
fe978cb0 | 902 | parse_method (char *method, char *type, char **theclass, |
d2e6263c | 903 | char **category, char **selector) |
b81654f1 MS |
904 | { |
905 | char *s1 = NULL; | |
906 | char *s2 = NULL; | |
907 | int found_quote = 0; | |
908 | ||
909 | char ntype = '\0'; | |
910 | char *nclass = NULL; | |
911 | char *ncategory = NULL; | |
912 | char *nselector = NULL; | |
913 | ||
e8f3fcdd | 914 | gdb_assert (type != NULL); |
fe978cb0 | 915 | gdb_assert (theclass != NULL); |
e8f3fcdd AC |
916 | gdb_assert (category != NULL); |
917 | gdb_assert (selector != NULL); | |
b81654f1 MS |
918 | |
919 | s1 = method; | |
920 | ||
529480d0 | 921 | s1 = skip_spaces (s1); |
b81654f1 MS |
922 | if (*s1 == '\'') |
923 | { | |
924 | found_quote = 1; | |
925 | s1++; | |
926 | } | |
529480d0 | 927 | s1 = skip_spaces (s1); |
b81654f1 MS |
928 | |
929 | if ((s1[0] == '+') || (s1[0] == '-')) | |
930 | ntype = *s1++; | |
931 | ||
529480d0 | 932 | s1 = skip_spaces (s1); |
b81654f1 MS |
933 | |
934 | if (*s1 != '[') | |
935 | return NULL; | |
936 | s1++; | |
937 | ||
938 | nclass = s1; | |
939 | while (isalnum (*s1) || (*s1 == '_')) | |
940 | s1++; | |
941 | ||
942 | s2 = s1; | |
529480d0 | 943 | s2 = skip_spaces (s2); |
b81654f1 MS |
944 | |
945 | if (*s2 == '(') | |
946 | { | |
947 | s2++; | |
529480d0 | 948 | s2 = skip_spaces (s2); |
b81654f1 MS |
949 | ncategory = s2; |
950 | while (isalnum (*s2) || (*s2 == '_')) | |
951 | s2++; | |
952 | *s2++ = '\0'; | |
953 | } | |
954 | ||
d2e6263c | 955 | /* Truncate the class name now that we're not using the open paren. */ |
b81654f1 MS |
956 | *s1++ = '\0'; |
957 | ||
958 | nselector = s2; | |
959 | s1 = s2; | |
960 | ||
5cc80db3 MS |
961 | for (;;) |
962 | { | |
963 | if (isalnum (*s2) || (*s2 == '_') || (*s2 == ':')) | |
964 | *s1++ = *s2; | |
965 | else if (isspace (*s2)) | |
966 | ; | |
967 | else if (*s2 == ']') | |
968 | break; | |
969 | else | |
970 | return NULL; | |
971 | s2++; | |
972 | } | |
b81654f1 MS |
973 | *s1++ = '\0'; |
974 | s2++; | |
975 | ||
529480d0 | 976 | s2 = skip_spaces (s2); |
b81654f1 MS |
977 | if (found_quote) |
978 | { | |
979 | if (*s2 != '\'') | |
980 | return NULL; | |
981 | s2++; | |
529480d0 | 982 | s2 = skip_spaces (s2); |
b81654f1 MS |
983 | } |
984 | ||
985 | if (type != NULL) | |
986 | *type = ntype; | |
fe978cb0 PA |
987 | if (theclass != NULL) |
988 | *theclass = nclass; | |
b81654f1 MS |
989 | if (category != NULL) |
990 | *category = ncategory; | |
991 | if (selector != NULL) | |
992 | *selector = nselector; | |
993 | ||
994 | return s2; | |
995 | } | |
996 | ||
2f9a90b4 | 997 | static void |
fe978cb0 | 998 | find_methods (char type, const char *theclass, const char *category, |
f8eba3c6 | 999 | const char *selector, |
9b2f8581 | 1000 | std::vector<const char *> *symbol_names) |
b81654f1 | 1001 | { |
0d5cff50 | 1002 | const char *symname = NULL; |
b81654f1 MS |
1003 | |
1004 | char ntype = '\0'; | |
1005 | char *nclass = NULL; | |
1006 | char *ncategory = NULL; | |
1007 | char *nselector = NULL; | |
1008 | ||
b81654f1 MS |
1009 | static char *tmp = NULL; |
1010 | static unsigned int tmplen = 0; | |
1011 | ||
f8eba3c6 | 1012 | gdb_assert (symbol_names != NULL); |
b81654f1 | 1013 | |
2030c079 | 1014 | for (objfile *objfile : current_program_space->objfiles ()) |
b81654f1 | 1015 | { |
57a9e6af | 1016 | unsigned int *objc_csym; |
b81654f1 | 1017 | |
57a9e6af PP |
1018 | /* The objfile_csym variable counts the number of ObjC methods |
1019 | that this objfile defines. We save that count as a private | |
1020 | objfile data. If we have already determined that this objfile | |
1021 | provides no ObjC methods, we can skip it entirely. */ | |
b81654f1 | 1022 | |
57a9e6af | 1023 | unsigned int objfile_csym = 0; |
b81654f1 | 1024 | |
4c58e337 | 1025 | objc_csym = objc_objfile_data.get (objfile); |
57a9e6af PP |
1026 | if (objc_csym != NULL && *objc_csym == 0) |
1027 | /* There are no ObjC symbols in this objfile. Skip it entirely. */ | |
b81654f1 MS |
1028 | continue; |
1029 | ||
7932255d | 1030 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
b81654f1 | 1031 | { |
57a9e6af | 1032 | QUIT; |
b81654f1 | 1033 | |
0c4b2e63 MF |
1034 | /* Check the symbol name first as this can be done entirely without |
1035 | sending any query to the target. */ | |
c9d95fa3 | 1036 | symname = msymbol->natural_name (); |
0c4b2e63 MF |
1037 | if (symname == NULL) |
1038 | continue; | |
1039 | ||
1040 | if ((symname[0] != '-' && symname[0] != '+') || (symname[1] != '[')) | |
1041 | /* Not a method name. */ | |
1042 | continue; | |
1043 | ||
8dfd1e6d KS |
1044 | objfile_csym++; |
1045 | ||
0c4b2e63 | 1046 | /* Now that thinks are a bit sane, clean up the symname. */ |
57a9e6af PP |
1047 | while ((strlen (symname) + 1) >= tmplen) |
1048 | { | |
1049 | tmplen = (tmplen == 0) ? 1024 : tmplen * 2; | |
224c3ddb | 1050 | tmp = (char *) xrealloc (tmp, tmplen); |
57a9e6af PP |
1051 | } |
1052 | strcpy (tmp, symname); | |
b81654f1 | 1053 | |
0df8b418 MS |
1054 | if (parse_method (tmp, &ntype, &nclass, |
1055 | &ncategory, &nselector) == NULL) | |
57a9e6af | 1056 | continue; |
b81654f1 | 1057 | |
57a9e6af PP |
1058 | if ((type != '\0') && (ntype != type)) |
1059 | continue; | |
b81654f1 | 1060 | |
fe978cb0 PA |
1061 | if ((theclass != NULL) |
1062 | && ((nclass == NULL) || (strcmp (theclass, nclass) != 0))) | |
57a9e6af PP |
1063 | continue; |
1064 | ||
1065 | if ((category != NULL) && | |
1066 | ((ncategory == NULL) || (strcmp (category, ncategory) != 0))) | |
1067 | continue; | |
b81654f1 | 1068 | |
57a9e6af PP |
1069 | if ((selector != NULL) && |
1070 | ((nselector == NULL) || (strcmp (selector, nselector) != 0))) | |
1071 | continue; | |
1072 | ||
9b2f8581 | 1073 | symbol_names->push_back (symname); |
57a9e6af | 1074 | } |
f8eba3c6 | 1075 | |
57a9e6af | 1076 | if (objc_csym == NULL) |
4c58e337 | 1077 | objc_csym = objc_objfile_data.emplace (objfile, objfile_csym); |
57a9e6af PP |
1078 | else |
1079 | /* Count of ObjC methods in this objfile should be constant. */ | |
1080 | gdb_assert (*objc_csym == objfile_csym); | |
b81654f1 | 1081 | } |
f8eba3c6 | 1082 | } |
b81654f1 | 1083 | |
791b7405 | 1084 | /* Uniquify a vector of strings. */ |
f8eba3c6 TT |
1085 | |
1086 | static void | |
9b2f8581 | 1087 | uniquify_strings (std::vector<const char *> *strings) |
f8eba3c6 | 1088 | { |
9b2f8581 | 1089 | if (strings->empty ()) |
ee7615e1 AA |
1090 | return; |
1091 | ||
9b2f8581 TT |
1092 | std::sort (strings->begin (), strings->end (), compare_cstrings); |
1093 | strings->erase (std::unique (strings->begin (), strings->end (), streq), | |
1094 | strings->end ()); | |
b81654f1 MS |
1095 | } |
1096 | ||
f8eba3c6 | 1097 | /* |
d7561cbb | 1098 | * Function: find_imps (const char *selector, struct symbol **sym_arr) |
f8eba3c6 TT |
1099 | * |
1100 | * Input: a string representing a selector | |
1101 | * a pointer to an array of symbol pointers | |
1102 | * possibly a pointer to a symbol found by the caller. | |
1103 | * | |
1104 | * Output: number of methods that implement that selector. Side | |
1105 | * effects: The array of symbol pointers is filled with matching syms. | |
1106 | * | |
1107 | * By analogy with function "find_methods" (symtab.c), builds a list | |
1108 | * of symbols matching the ambiguous input, so that "decode_line_2" | |
1109 | * (symtab.c) can list them and ask the user to choose one or more. | |
1110 | * In this case the matches are objective c methods | |
1111 | * ("implementations") matching an objective c selector. | |
1112 | * | |
1113 | * Note that it is possible for a normal (c-style) function to have | |
1114 | * the same name as an objective c selector. To prevent the selector | |
1115 | * from eclipsing the function, we allow the caller (decode_line_1) to | |
1116 | * search for such a function first, and if it finds one, pass it in | |
1117 | * to us. We will then integrate it into the list. We also search | |
1118 | * for one here, among the minsyms. | |
1119 | * | |
1120 | * NOTE: if NUM_DEBUGGABLE is non-zero, the sym_arr will be divided | |
1121 | * into two parts: debuggable (struct symbol) syms, and | |
1122 | * non_debuggable (struct minimal_symbol) syms. The debuggable | |
1123 | * ones will come first, before NUM_DEBUGGABLE (which will thus | |
1124 | * be the index of the first non-debuggable one). | |
1125 | */ | |
1126 | ||
d7561cbb | 1127 | const char * |
9b2f8581 | 1128 | find_imps (const char *method, std::vector<const char *> *symbol_names) |
b81654f1 MS |
1129 | { |
1130 | char type = '\0'; | |
fe978cb0 | 1131 | char *theclass = NULL; |
b81654f1 MS |
1132 | char *category = NULL; |
1133 | char *selector = NULL; | |
1134 | ||
b81654f1 MS |
1135 | char *buf = NULL; |
1136 | char *tmp = NULL; | |
1137 | ||
f8eba3c6 | 1138 | int selector_case = 0; |
b81654f1 | 1139 | |
f8eba3c6 | 1140 | gdb_assert (symbol_names != NULL); |
b81654f1 MS |
1141 | |
1142 | buf = (char *) alloca (strlen (method) + 1); | |
1143 | strcpy (buf, method); | |
fe978cb0 | 1144 | tmp = parse_method (buf, &type, &theclass, &category, &selector); |
b81654f1 | 1145 | |
5cc80db3 MS |
1146 | if (tmp == NULL) |
1147 | { | |
5cc80db3 MS |
1148 | strcpy (buf, method); |
1149 | tmp = parse_selector (buf, &selector); | |
b81654f1 | 1150 | |
5cc80db3 MS |
1151 | if (tmp == NULL) |
1152 | return NULL; | |
1153 | ||
f8eba3c6 | 1154 | selector_case = 1; |
5cc80db3 | 1155 | } |
b81654f1 | 1156 | |
fe978cb0 | 1157 | find_methods (type, theclass, category, selector, symbol_names); |
b81654f1 | 1158 | |
f8eba3c6 TT |
1159 | /* If we hit the "selector" case, and we found some methods, then |
1160 | add the selector itself as a symbol, if it exists. */ | |
9b2f8581 | 1161 | if (selector_case && !symbol_names->empty ()) |
b81654f1 | 1162 | { |
d12307c1 PMR |
1163 | struct symbol *sym = lookup_symbol (selector, NULL, VAR_DOMAIN, |
1164 | 0).symbol; | |
f8eba3c6 TT |
1165 | |
1166 | if (sym != NULL) | |
987012b8 | 1167 | symbol_names->push_back (sym->natural_name ()); |
f8eba3c6 | 1168 | else |
b81654f1 | 1169 | { |
3b7344d5 TT |
1170 | struct bound_minimal_symbol msym |
1171 | = lookup_minimal_symbol (selector, 0, 0); | |
f8eba3c6 | 1172 | |
3b7344d5 | 1173 | if (msym.minsym != NULL) |
c9d95fa3 | 1174 | symbol_names->push_back (msym.minsym->natural_name ()); |
b81654f1 MS |
1175 | } |
1176 | } | |
1177 | ||
f8eba3c6 | 1178 | uniquify_strings (symbol_names); |
b81654f1 MS |
1179 | |
1180 | return method + (tmp - buf); | |
1181 | } | |
1182 | ||
b9362cc7 | 1183 | static void |
0b39b52e | 1184 | print_object_command (const char *args, int from_tty) |
b81654f1 MS |
1185 | { |
1186 | struct value *object, *function, *description; | |
36e53c63 | 1187 | CORE_ADDR string_addr, object_addr; |
b81654f1 | 1188 | int i = 0; |
22a44745 | 1189 | gdb_byte c = 0; |
b81654f1 MS |
1190 | |
1191 | if (!args || !*args) | |
d2e6263c MS |
1192 | error ( |
1193 | "The 'print-object' command requires an argument (an Objective-C object)"); | |
b81654f1 MS |
1194 | |
1195 | { | |
4d01a485 | 1196 | expression_up expr = parse_expression (args); |
b81654f1 MS |
1197 | int pc = 0; |
1198 | ||
4b27a620 | 1199 | object = evaluate_subexp (builtin_type (expr->gdbarch)->builtin_data_ptr, |
4d01a485 | 1200 | expr.get (), &pc, EVAL_NORMAL); |
b81654f1 MS |
1201 | } |
1202 | ||
36e53c63 AF |
1203 | /* Validate the address for sanity. */ |
1204 | object_addr = value_as_long (object); | |
1205 | read_memory (object_addr, &c, 1); | |
1206 | ||
3e3b026f | 1207 | function = find_function_in_inferior ("_NSPrintForDebugger", NULL); |
36e53c63 | 1208 | if (function == NULL) |
8a3fe4f8 | 1209 | error (_("Unable to locate _NSPrintForDebugger in child process")); |
b81654f1 | 1210 | |
e71585ff | 1211 | description = call_function_by_hand (function, NULL, object); |
b81654f1 | 1212 | |
7248f48e AF |
1213 | string_addr = value_as_long (description); |
1214 | if (string_addr == 0) | |
8a3fe4f8 | 1215 | error (_("object returns null description")); |
b81654f1 MS |
1216 | |
1217 | read_memory (string_addr + i++, &c, 1); | |
22a44745 | 1218 | if (c != 0) |
b81654f1 | 1219 | do |
d2e6263c | 1220 | { /* Read and print characters up to EOS. */ |
b81654f1 MS |
1221 | QUIT; |
1222 | printf_filtered ("%c", c); | |
1223 | read_memory (string_addr + i++, &c, 1); | |
1224 | } while (c != 0); | |
1225 | else | |
a3f17187 | 1226 | printf_filtered(_("<object returns empty description>")); |
b81654f1 MS |
1227 | printf_filtered ("\n"); |
1228 | } | |
1229 | ||
d2e6263c MS |
1230 | /* The data structure 'methcalls' is used to detect method calls (thru |
1231 | * ObjC runtime lib functions objc_msgSend, objc_msgSendSuper, etc.), | |
0df8b418 | 1232 | * and ultimately find the method being called. |
b81654f1 MS |
1233 | */ |
1234 | ||
1235 | struct objc_methcall { | |
a121b7c1 | 1236 | const char *name; |
d2e6263c | 1237 | /* Return instance method to be called. */ |
36e53c63 | 1238 | int (*stop_at) (CORE_ADDR, CORE_ADDR *); |
d2e6263c MS |
1239 | /* Start of pc range corresponding to method invocation. */ |
1240 | CORE_ADDR begin; | |
1241 | /* End of pc range corresponding to method invocation. */ | |
1242 | CORE_ADDR end; | |
b81654f1 MS |
1243 | }; |
1244 | ||
d2e6263c MS |
1245 | static int resolve_msgsend (CORE_ADDR pc, CORE_ADDR *new_pc); |
1246 | static int resolve_msgsend_stret (CORE_ADDR pc, CORE_ADDR *new_pc); | |
1247 | static int resolve_msgsend_super (CORE_ADDR pc, CORE_ADDR *new_pc); | |
1248 | static int resolve_msgsend_super_stret (CORE_ADDR pc, CORE_ADDR *new_pc); | |
b81654f1 MS |
1249 | |
1250 | static struct objc_methcall methcalls[] = { | |
1251 | { "_objc_msgSend", resolve_msgsend, 0, 0}, | |
1252 | { "_objc_msgSend_stret", resolve_msgsend_stret, 0, 0}, | |
1253 | { "_objc_msgSendSuper", resolve_msgsend_super, 0, 0}, | |
1254 | { "_objc_msgSendSuper_stret", resolve_msgsend_super_stret, 0, 0}, | |
1255 | { "_objc_getClass", NULL, 0, 0}, | |
1256 | { "_objc_getMetaClass", NULL, 0, 0} | |
1257 | }; | |
1258 | ||
1259 | #define nmethcalls (sizeof (methcalls) / sizeof (methcalls[0])) | |
1260 | ||
d2e6263c MS |
1261 | /* The following function, "find_objc_msgsend", fills in the data |
1262 | * structure "objc_msgs" by finding the addresses of each of the | |
1263 | * (currently four) functions that it holds (of which objc_msgSend is | |
1264 | * the first). This must be called each time symbols are loaded, in | |
0df8b418 | 1265 | * case the functions have moved for some reason. |
b81654f1 MS |
1266 | */ |
1267 | ||
b9362cc7 | 1268 | static void |
b81654f1 MS |
1269 | find_objc_msgsend (void) |
1270 | { | |
1271 | unsigned int i; | |
b81654f1 | 1272 | |
5cc80db3 MS |
1273 | for (i = 0; i < nmethcalls; i++) |
1274 | { | |
50e65b17 | 1275 | struct bound_minimal_symbol func; |
b81654f1 | 1276 | |
5cc80db3 | 1277 | /* Try both with and without underscore. */ |
50e65b17 TT |
1278 | func = lookup_bound_minimal_symbol (methcalls[i].name); |
1279 | if ((func.minsym == NULL) && (methcalls[i].name[0] == '_')) | |
5cc80db3 | 1280 | { |
50e65b17 | 1281 | func = lookup_bound_minimal_symbol (methcalls[i].name + 1); |
5cc80db3 | 1282 | } |
50e65b17 | 1283 | if (func.minsym == NULL) |
5cc80db3 MS |
1284 | { |
1285 | methcalls[i].begin = 0; | |
1286 | methcalls[i].end = 0; | |
1287 | continue; | |
1288 | } | |
1289 | ||
77e371c0 | 1290 | methcalls[i].begin = BMSYMBOL_VALUE_ADDRESS (func); |
50e65b17 | 1291 | methcalls[i].end = minimal_symbol_upper_bound (func); |
b81654f1 | 1292 | } |
b81654f1 MS |
1293 | } |
1294 | ||
1295 | /* find_objc_msgcall (replaces pc_off_limits) | |
1296 | * | |
d2e6263c MS |
1297 | * ALL that this function now does is to determine whether the input |
1298 | * address ("pc") is the address of one of the Objective-C message | |
b81654f1 MS |
1299 | * dispatch functions (mainly objc_msgSend or objc_msgSendSuper), and |
1300 | * if so, it returns the address of the method that will be called. | |
1301 | * | |
1302 | * The old function "pc_off_limits" used to do a lot of other things | |
d2e6263c | 1303 | * in addition, such as detecting shared library jump stubs and |
b81654f1 | 1304 | * returning the address of the shlib function that would be called. |
e76f05fa | 1305 | * That functionality has been moved into the gdbarch_skip_trampoline_code and |
d2e6263c | 1306 | * IN_SOLIB_TRAMPOLINE macros, which are resolved in the target- |
0df8b418 | 1307 | * dependent modules. |
b81654f1 MS |
1308 | */ |
1309 | ||
b9362cc7 | 1310 | static int |
36e53c63 | 1311 | find_objc_msgcall_submethod (int (*f) (CORE_ADDR, CORE_ADDR *), |
d2e6263c MS |
1312 | CORE_ADDR pc, |
1313 | CORE_ADDR *new_pc) | |
b81654f1 | 1314 | { |
a70b8144 | 1315 | try |
bf469271 PA |
1316 | { |
1317 | if (f (pc, new_pc) == 0) | |
1318 | return 1; | |
1319 | } | |
230d2906 | 1320 | catch (const gdb_exception &ex) |
bf469271 PA |
1321 | { |
1322 | exception_fprintf (gdb_stderr, ex, | |
1323 | "Unable to determine target of " | |
1324 | "Objective-C method call (ignoring):\n"); | |
1325 | } | |
bf469271 PA |
1326 | |
1327 | return 0; | |
b81654f1 MS |
1328 | } |
1329 | ||
1330 | int | |
1331 | find_objc_msgcall (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1332 | { | |
1333 | unsigned int i; | |
1334 | ||
1335 | find_objc_msgsend (); | |
5e488a7b AC |
1336 | if (new_pc != NULL) |
1337 | { | |
1338 | *new_pc = 0; | |
1339 | } | |
b81654f1 | 1340 | |
d2e6263c MS |
1341 | for (i = 0; i < nmethcalls; i++) |
1342 | if ((pc >= methcalls[i].begin) && (pc < methcalls[i].end)) | |
1343 | { | |
1344 | if (methcalls[i].stop_at != NULL) | |
1345 | return find_objc_msgcall_submethod (methcalls[i].stop_at, | |
1346 | pc, new_pc); | |
1347 | else | |
1348 | return 0; | |
b81654f1 | 1349 | } |
d2e6263c | 1350 | |
b81654f1 MS |
1351 | return 0; |
1352 | } | |
1353 | ||
6c265988 | 1354 | void _initialize_objc_language (); |
b81654f1 | 1355 | void |
6c265988 | 1356 | _initialize_objc_language () |
b81654f1 | 1357 | { |
11db9430 | 1358 | add_info ("selectors", info_selectors_command, |
1bedd215 | 1359 | _("All Objective-C selectors, or those matching REGEXP.")); |
11db9430 | 1360 | add_info ("classes", info_classes_command, |
1bedd215 | 1361 | _("All Objective-C classes, or those matching REGEXP.")); |
b81654f1 | 1362 | add_com ("print-object", class_vars, print_object_command, |
1bedd215 | 1363 | _("Ask an Objective-C object to print itself.")); |
b81654f1 MS |
1364 | add_com_alias ("po", "print-object", class_vars, 1); |
1365 | } | |
1366 | ||
b81654f1 | 1367 | static void |
e17a4113 UW |
1368 | read_objc_method (struct gdbarch *gdbarch, CORE_ADDR addr, |
1369 | struct objc_method *method) | |
b81654f1 | 1370 | { |
e17a4113 | 1371 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1372 | |
e17a4113 UW |
1373 | method->name = read_memory_unsigned_integer (addr + 0, 4, byte_order); |
1374 | method->types = read_memory_unsigned_integer (addr + 4, 4, byte_order); | |
1375 | method->imp = read_memory_unsigned_integer (addr + 8, 4, byte_order); | |
b81654f1 MS |
1376 | } |
1377 | ||
e17a4113 UW |
1378 | static unsigned long |
1379 | read_objc_methlist_nmethods (struct gdbarch *gdbarch, CORE_ADDR addr) | |
b81654f1 | 1380 | { |
e17a4113 | 1381 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1382 | |
e17a4113 | 1383 | return read_memory_unsigned_integer (addr + 4, 4, byte_order); |
b81654f1 MS |
1384 | } |
1385 | ||
1386 | static void | |
e17a4113 UW |
1387 | read_objc_methlist_method (struct gdbarch *gdbarch, CORE_ADDR addr, |
1388 | unsigned long num, struct objc_method *method) | |
b81654f1 | 1389 | { |
e17a4113 UW |
1390 | gdb_assert (num < read_objc_methlist_nmethods (gdbarch, addr)); |
1391 | read_objc_method (gdbarch, addr + 8 + (12 * num), method); | |
b81654f1 MS |
1392 | } |
1393 | ||
1394 | static void | |
e17a4113 UW |
1395 | read_objc_object (struct gdbarch *gdbarch, CORE_ADDR addr, |
1396 | struct objc_object *object) | |
b81654f1 | 1397 | { |
e17a4113 | 1398 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1399 | |
e17a4113 | 1400 | object->isa = read_memory_unsigned_integer (addr, 4, byte_order); |
b81654f1 MS |
1401 | } |
1402 | ||
1403 | static void | |
e17a4113 UW |
1404 | read_objc_super (struct gdbarch *gdbarch, CORE_ADDR addr, |
1405 | struct objc_super *super) | |
b81654f1 | 1406 | { |
e17a4113 | 1407 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1408 | |
e17a4113 | 1409 | super->receiver = read_memory_unsigned_integer (addr, 4, byte_order); |
fe978cb0 | 1410 | super->theclass = read_memory_unsigned_integer (addr + 4, 4, byte_order); |
b81654f1 MS |
1411 | }; |
1412 | ||
1413 | static void | |
e17a4113 | 1414 | read_objc_class (struct gdbarch *gdbarch, CORE_ADDR addr, |
fe978cb0 | 1415 | struct objc_class *theclass) |
b81654f1 | 1416 | { |
e17a4113 | 1417 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1418 | |
fe978cb0 PA |
1419 | theclass->isa = read_memory_unsigned_integer (addr, 4, byte_order); |
1420 | theclass->super_class = read_memory_unsigned_integer (addr + 4, 4, byte_order); | |
1421 | theclass->name = read_memory_unsigned_integer (addr + 8, 4, byte_order); | |
1422 | theclass->version = read_memory_unsigned_integer (addr + 12, 4, byte_order); | |
1423 | theclass->info = read_memory_unsigned_integer (addr + 16, 4, byte_order); | |
1424 | theclass->instance_size = read_memory_unsigned_integer (addr + 18, 4, | |
0df8b418 | 1425 | byte_order); |
fe978cb0 PA |
1426 | theclass->ivars = read_memory_unsigned_integer (addr + 24, 4, byte_order); |
1427 | theclass->methods = read_memory_unsigned_integer (addr + 28, 4, byte_order); | |
1428 | theclass->cache = read_memory_unsigned_integer (addr + 32, 4, byte_order); | |
1429 | theclass->protocols = read_memory_unsigned_integer (addr + 36, 4, byte_order); | |
b81654f1 MS |
1430 | } |
1431 | ||
b9362cc7 | 1432 | static CORE_ADDR |
e17a4113 | 1433 | find_implementation_from_class (struct gdbarch *gdbarch, |
fe978cb0 | 1434 | CORE_ADDR theclass, CORE_ADDR sel) |
b81654f1 | 1435 | { |
e17a4113 | 1436 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
fe978cb0 | 1437 | CORE_ADDR subclass = theclass; |
b81654f1 | 1438 | |
d2e6263c MS |
1439 | while (subclass != 0) |
1440 | { | |
b81654f1 | 1441 | |
d2e6263c MS |
1442 | struct objc_class class_str; |
1443 | unsigned mlistnum = 0; | |
b81654f1 | 1444 | |
e17a4113 | 1445 | read_objc_class (gdbarch, subclass, &class_str); |
b81654f1 | 1446 | |
d2e6263c MS |
1447 | for (;;) |
1448 | { | |
1449 | CORE_ADDR mlist; | |
1450 | unsigned long nmethods; | |
1451 | unsigned long i; | |
b81654f1 | 1452 | |
d2e6263c | 1453 | mlist = read_memory_unsigned_integer (class_str.methods + |
e17a4113 UW |
1454 | (4 * mlistnum), |
1455 | 4, byte_order); | |
d2e6263c MS |
1456 | if (mlist == 0) |
1457 | break; | |
b81654f1 | 1458 | |
e17a4113 | 1459 | nmethods = read_objc_methlist_nmethods (gdbarch, mlist); |
b81654f1 | 1460 | |
d2e6263c MS |
1461 | for (i = 0; i < nmethods; i++) |
1462 | { | |
1463 | struct objc_method meth_str; | |
b81654f1 | 1464 | |
5cc80db3 | 1465 | read_objc_methlist_method (gdbarch, mlist, i, &meth_str); |
b81654f1 | 1466 | |
d2e6263c | 1467 | if (meth_str.name == sel) |
1abf022c | 1468 | /* FIXME: hppa arch was doing a pointer dereference |
0df8b418 | 1469 | here. There needs to be a better way to do that. */ |
1abf022c | 1470 | return meth_str.imp; |
d2e6263c MS |
1471 | } |
1472 | mlistnum++; | |
b81654f1 | 1473 | } |
d2e6263c | 1474 | subclass = class_str.super_class; |
b81654f1 | 1475 | } |
b81654f1 MS |
1476 | |
1477 | return 0; | |
1478 | } | |
1479 | ||
b9362cc7 | 1480 | static CORE_ADDR |
e17a4113 UW |
1481 | find_implementation (struct gdbarch *gdbarch, |
1482 | CORE_ADDR object, CORE_ADDR sel) | |
b81654f1 MS |
1483 | { |
1484 | struct objc_object ostr; | |
1485 | ||
d2e6263c MS |
1486 | if (object == 0) |
1487 | return 0; | |
e17a4113 | 1488 | read_objc_object (gdbarch, object, &ostr); |
d2e6263c MS |
1489 | if (ostr.isa == 0) |
1490 | return 0; | |
b81654f1 | 1491 | |
e17a4113 | 1492 | return find_implementation_from_class (gdbarch, ostr.isa, sel); |
b81654f1 MS |
1493 | } |
1494 | ||
1495 | static int | |
1496 | resolve_msgsend (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1497 | { | |
5ed92fa8 UW |
1498 | struct frame_info *frame = get_current_frame (); |
1499 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1500 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1501 | ||
b81654f1 MS |
1502 | CORE_ADDR object; |
1503 | CORE_ADDR sel; | |
1504 | CORE_ADDR res; | |
1505 | ||
5ed92fa8 UW |
1506 | object = gdbarch_fetch_pointer_argument (gdbarch, frame, 0, ptr_type); |
1507 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); | |
b81654f1 | 1508 | |
e17a4113 | 1509 | res = find_implementation (gdbarch, object, sel); |
d2e6263c MS |
1510 | if (new_pc != 0) |
1511 | *new_pc = res; | |
1512 | if (res == 0) | |
1513 | return 1; | |
b81654f1 MS |
1514 | return 0; |
1515 | } | |
1516 | ||
1517 | static int | |
1518 | resolve_msgsend_stret (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1519 | { | |
5ed92fa8 UW |
1520 | struct frame_info *frame = get_current_frame (); |
1521 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1522 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1523 | ||
b81654f1 MS |
1524 | CORE_ADDR object; |
1525 | CORE_ADDR sel; | |
1526 | CORE_ADDR res; | |
1527 | ||
5ed92fa8 UW |
1528 | object = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); |
1529 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 2, ptr_type); | |
b81654f1 | 1530 | |
e17a4113 | 1531 | res = find_implementation (gdbarch, object, sel); |
d2e6263c MS |
1532 | if (new_pc != 0) |
1533 | *new_pc = res; | |
1534 | if (res == 0) | |
1535 | return 1; | |
b81654f1 MS |
1536 | return 0; |
1537 | } | |
1538 | ||
1539 | static int | |
1540 | resolve_msgsend_super (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1541 | { | |
5ed92fa8 UW |
1542 | struct frame_info *frame = get_current_frame (); |
1543 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1544 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1545 | ||
b81654f1 MS |
1546 | struct objc_super sstr; |
1547 | ||
1548 | CORE_ADDR super; | |
1549 | CORE_ADDR sel; | |
1550 | CORE_ADDR res; | |
1551 | ||
5ed92fa8 UW |
1552 | super = gdbarch_fetch_pointer_argument (gdbarch, frame, 0, ptr_type); |
1553 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); | |
b81654f1 | 1554 | |
e17a4113 | 1555 | read_objc_super (gdbarch, super, &sstr); |
fe978cb0 | 1556 | if (sstr.theclass == 0) |
d2e6263c | 1557 | return 0; |
b81654f1 | 1558 | |
fe978cb0 | 1559 | res = find_implementation_from_class (gdbarch, sstr.theclass, sel); |
d2e6263c MS |
1560 | if (new_pc != 0) |
1561 | *new_pc = res; | |
1562 | if (res == 0) | |
1563 | return 1; | |
b81654f1 MS |
1564 | return 0; |
1565 | } | |
1566 | ||
1567 | static int | |
1568 | resolve_msgsend_super_stret (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1569 | { | |
5ed92fa8 UW |
1570 | struct frame_info *frame = get_current_frame (); |
1571 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1572 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1573 | ||
b81654f1 MS |
1574 | struct objc_super sstr; |
1575 | ||
1576 | CORE_ADDR super; | |
1577 | CORE_ADDR sel; | |
1578 | CORE_ADDR res; | |
1579 | ||
5ed92fa8 UW |
1580 | super = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); |
1581 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 2, ptr_type); | |
b81654f1 | 1582 | |
e17a4113 | 1583 | read_objc_super (gdbarch, super, &sstr); |
fe978cb0 | 1584 | if (sstr.theclass == 0) |
d2e6263c | 1585 | return 0; |
b81654f1 | 1586 | |
fe978cb0 | 1587 | res = find_implementation_from_class (gdbarch, sstr.theclass, sel); |
d2e6263c MS |
1588 | if (new_pc != 0) |
1589 | *new_pc = res; | |
1590 | if (res == 0) | |
1591 | return 1; | |
b81654f1 MS |
1592 | return 0; |
1593 | } |