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d2e6263c | 1 | /* Objective-C language support routines for GDB, the GNU debugger. |
b81654f1 | 2 | |
42a4f53d | 3 | Copyright (C) 2002-2019 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" | |
b81654f1 MS |
36 | #include "target.h" /* for target_has_execution */ |
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 | ||
57a9e6af PP |
78 | static const struct objfile_data *objc_objfile_data; |
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 MS |
97 | } |
98 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
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 | ||
115 | if (! target_has_execution) | |
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 | ||
144 | if (! target_has_execution) | |
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 | ||
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 | ||
8b302db8 TT |
284 | /* la_sniff_from_mangled_name for ObjC. */ |
285 | ||
286 | static int | |
287 | objc_sniff_from_mangled_name (const char *mangled, char **demangled) | |
288 | { | |
289 | *demangled = objc_demangle (mangled, 0); | |
290 | return *demangled != NULL; | |
291 | } | |
292 | ||
f636b87d AF |
293 | /* Determine if we are currently in the Objective-C dispatch function. |
294 | If so, get the address of the method function that the dispatcher | |
0df8b418 | 295 | would call and use that as the function to step into instead. Also |
f636b87d AF |
296 | skip over the trampoline for the function (if any). This is better |
297 | for the user since they are only interested in stepping into the | |
298 | method function anyway. */ | |
299 | static CORE_ADDR | |
52f729a7 | 300 | objc_skip_trampoline (struct frame_info *frame, CORE_ADDR stop_pc) |
f636b87d | 301 | { |
d80b854b | 302 | struct gdbarch *gdbarch = get_frame_arch (frame); |
f636b87d AF |
303 | CORE_ADDR real_stop_pc; |
304 | CORE_ADDR method_stop_pc; | |
305 | ||
d80b854b | 306 | real_stop_pc = gdbarch_skip_trampoline_code (gdbarch, frame, stop_pc); |
f636b87d AF |
307 | |
308 | if (real_stop_pc != 0) | |
309 | find_objc_msgcall (real_stop_pc, &method_stop_pc); | |
310 | else | |
311 | find_objc_msgcall (stop_pc, &method_stop_pc); | |
312 | ||
313 | if (method_stop_pc) | |
314 | { | |
e76f05fa | 315 | real_stop_pc = gdbarch_skip_trampoline_code |
d80b854b | 316 | (gdbarch, frame, method_stop_pc); |
f636b87d AF |
317 | if (real_stop_pc == 0) |
318 | real_stop_pc = method_stop_pc; | |
319 | } | |
320 | ||
321 | return real_stop_pc; | |
322 | } | |
323 | ||
b81654f1 MS |
324 | |
325 | /* Table mapping opcodes into strings for printing operators | |
326 | and precedences of the operators. */ | |
327 | ||
328 | static const struct op_print objc_op_print_tab[] = | |
329 | { | |
330 | {",", BINOP_COMMA, PREC_COMMA, 0}, | |
331 | {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, | |
332 | {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, | |
333 | {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, | |
334 | {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0}, | |
335 | {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0}, | |
336 | {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0}, | |
337 | {"==", BINOP_EQUAL, PREC_EQUAL, 0}, | |
338 | {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0}, | |
339 | {"<=", BINOP_LEQ, PREC_ORDER, 0}, | |
340 | {">=", BINOP_GEQ, PREC_ORDER, 0}, | |
341 | {">", BINOP_GTR, PREC_ORDER, 0}, | |
342 | {"<", BINOP_LESS, PREC_ORDER, 0}, | |
343 | {">>", BINOP_RSH, PREC_SHIFT, 0}, | |
344 | {"<<", BINOP_LSH, PREC_SHIFT, 0}, | |
345 | {"+", BINOP_ADD, PREC_ADD, 0}, | |
346 | {"-", BINOP_SUB, PREC_ADD, 0}, | |
347 | {"*", BINOP_MUL, PREC_MUL, 0}, | |
348 | {"/", BINOP_DIV, PREC_MUL, 0}, | |
349 | {"%", BINOP_REM, PREC_MUL, 0}, | |
350 | {"@", BINOP_REPEAT, PREC_REPEAT, 0}, | |
351 | {"-", UNOP_NEG, PREC_PREFIX, 0}, | |
352 | {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, | |
353 | {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0}, | |
354 | {"*", UNOP_IND, PREC_PREFIX, 0}, | |
355 | {"&", UNOP_ADDR, PREC_PREFIX, 0}, | |
356 | {"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0}, | |
357 | {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0}, | |
358 | {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0}, | |
e8f3fcdd | 359 | {NULL, OP_NULL, PREC_NULL, 0} |
b81654f1 MS |
360 | }; |
361 | ||
56618e20 TT |
362 | static const char *objc_extensions[] = |
363 | { | |
364 | ".m", NULL | |
365 | }; | |
366 | ||
47e77640 | 367 | extern const struct language_defn objc_language_defn = { |
d2e6263c | 368 | "objective-c", /* Language name */ |
6abde28f | 369 | "Objective-C", |
b81654f1 | 370 | language_objc, |
b81654f1 | 371 | range_check_off, |
b81654f1 | 372 | case_sensitive_on, |
7ca2d3a3 | 373 | array_row_major, |
9a044a89 | 374 | macro_expansion_c, |
56618e20 | 375 | objc_extensions, |
5f9769d1 | 376 | &exp_descriptor_standard, |
f2e8016f | 377 | c_parse, |
e85c3284 | 378 | null_post_parser, |
8a808554 TT |
379 | c_printchar, /* Print a character constant */ |
380 | c_printstr, /* Function to print string constant */ | |
381 | c_emit_char, | |
b81654f1 | 382 | c_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 383 | c_print_typedef, /* Print a typedef using appropriate syntax */ |
b81654f1 MS |
384 | c_val_print, /* Print a value using appropriate syntax */ |
385 | c_value_print, /* Print a top-level value */ | |
a5ee536b | 386 | default_read_var_value, /* la_read_var_value */ |
f636b87d | 387 | objc_skip_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 388 | "self", /* name_of_this */ |
59cc4834 | 389 | false, /* la_store_sym_names_in_linkage_form_p */ |
5f9a71c3 | 390 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 391 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 392 | objc_demangle, /* Language specific symbol demangler */ |
8b302db8 | 393 | objc_sniff_from_mangled_name, |
0df8b418 MS |
394 | NULL, /* Language specific |
395 | class_name_from_physname */ | |
d2e6263c MS |
396 | objc_op_print_tab, /* Expression operators for printing */ |
397 | 1, /* C-style arrays */ | |
b81654f1 | 398 | 0, /* String lower bound */ |
6084f43a | 399 | default_word_break_characters, |
eb3ff9a5 | 400 | default_collect_symbol_completion_matches, |
cad351d1 | 401 | c_language_arch_info, |
e79af960 | 402 | default_print_array_index, |
41f1b697 | 403 | default_pass_by_reference, |
ae6a3a4c | 404 | default_get_string, |
43cc5389 | 405 | c_watch_location_expression, |
b5ec771e | 406 | NULL, /* la_get_symbol_name_matcher */ |
f8eba3c6 | 407 | iterate_over_symbols, |
5ffa0793 | 408 | default_search_name_hash, |
a53b64ea | 409 | &default_varobj_ops, |
bb2ec1b3 TT |
410 | NULL, |
411 | NULL, | |
b81654f1 MS |
412 | LANG_MAGIC |
413 | }; | |
414 | ||
415 | /* | |
416 | * ObjC: | |
0df8b418 | 417 | * Following functions help construct Objective-C message calls. |
b81654f1 MS |
418 | */ |
419 | ||
d2e6263c | 420 | struct selname /* For parsing Objective-C. */ |
b81654f1 MS |
421 | { |
422 | struct selname *next; | |
423 | char *msglist_sel; | |
424 | int msglist_len; | |
425 | }; | |
426 | ||
427 | static int msglist_len; | |
428 | static struct selname *selname_chain; | |
429 | static char *msglist_sel; | |
430 | ||
431 | void | |
432 | start_msglist(void) | |
433 | { | |
8d749320 | 434 | struct selname *newobj = XNEW (struct selname); |
b81654f1 | 435 | |
fe978cb0 PA |
436 | newobj->next = selname_chain; |
437 | newobj->msglist_len = msglist_len; | |
438 | newobj->msglist_sel = msglist_sel; | |
b81654f1 MS |
439 | msglist_len = 0; |
440 | msglist_sel = (char *)xmalloc(1); | |
441 | *msglist_sel = 0; | |
fe978cb0 | 442 | selname_chain = newobj; |
b81654f1 MS |
443 | } |
444 | ||
445 | void | |
446 | add_msglist(struct stoken *str, int addcolon) | |
447 | { | |
d7561cbb KS |
448 | char *s; |
449 | const char *p; | |
b81654f1 MS |
450 | int len, plen; |
451 | ||
5cc80db3 MS |
452 | if (str == 0) /* Unnamed arg, or... */ |
453 | { | |
454 | if (addcolon == 0) /* variable number of args. */ | |
455 | { | |
456 | msglist_len++; | |
457 | return; | |
458 | } | |
459 | p = ""; | |
460 | plen = 0; | |
461 | } | |
462 | else | |
463 | { | |
464 | p = str->ptr; | |
465 | plen = str->length; | |
b81654f1 | 466 | } |
b81654f1 MS |
467 | len = plen + strlen(msglist_sel) + 2; |
468 | s = (char *)xmalloc(len); | |
469 | strcpy(s, msglist_sel); | |
470 | strncat(s, p, plen); | |
7248f48e | 471 | xfree(msglist_sel); |
b81654f1 | 472 | msglist_sel = s; |
5cc80db3 MS |
473 | if (addcolon) |
474 | { | |
475 | s[len-2] = ':'; | |
476 | s[len-1] = 0; | |
477 | msglist_len++; | |
478 | } | |
479 | else | |
b81654f1 MS |
480 | s[len-2] = '\0'; |
481 | } | |
482 | ||
483 | int | |
410a0ff2 | 484 | end_msglist (struct parser_state *ps) |
b81654f1 | 485 | { |
f86f5ca3 PH |
486 | int val = msglist_len; |
487 | struct selname *sel = selname_chain; | |
488 | char *p = msglist_sel; | |
c253954e | 489 | CORE_ADDR selid; |
b81654f1 MS |
490 | |
491 | selname_chain = sel->next; | |
492 | msglist_len = sel->msglist_len; | |
493 | msglist_sel = sel->msglist_sel; | |
410a0ff2 | 494 | selid = lookup_child_selector (parse_gdbarch (ps), p); |
b81654f1 | 495 | if (!selid) |
8a3fe4f8 | 496 | error (_("Can't find selector \"%s\""), p); |
410a0ff2 | 497 | write_exp_elt_longcst (ps, selid); |
7248f48e | 498 | xfree(p); |
410a0ff2 | 499 | write_exp_elt_longcst (ps, val); /* Number of args */ |
7248f48e | 500 | xfree(sel); |
b81654f1 MS |
501 | |
502 | return val; | |
503 | } | |
504 | ||
505 | /* | |
0d5cff50 | 506 | * Function: specialcmp (const char *a, const char *b) |
b81654f1 MS |
507 | * |
508 | * Special strcmp: treats ']' and ' ' as end-of-string. | |
d2e6263c | 509 | * Used for qsorting lists of objc methods (either by class or selector). |
b81654f1 MS |
510 | */ |
511 | ||
b9362cc7 | 512 | static int |
0d5cff50 | 513 | specialcmp (const char *a, const char *b) |
b81654f1 MS |
514 | { |
515 | while (*a && *a != ' ' && *a != ']' && *b && *b != ' ' && *b != ']') | |
516 | { | |
517 | if (*a != *b) | |
518 | return *a - *b; | |
519 | a++, b++; | |
520 | } | |
521 | if (*a && *a != ' ' && *a != ']') | |
0df8b418 | 522 | return 1; /* a is longer therefore greater. */ |
b81654f1 | 523 | if (*b && *b != ' ' && *b != ']') |
0df8b418 MS |
524 | return -1; /* a is shorter therefore lesser. */ |
525 | return 0; /* a and b are identical. */ | |
b81654f1 MS |
526 | } |
527 | ||
528 | /* | |
36e53c63 | 529 | * Function: compare_selectors (const void *, const void *) |
b81654f1 | 530 | * |
d2e6263c MS |
531 | * Comparison function for use with qsort. Arguments are symbols or |
532 | * msymbols Compares selector part of objc method name alphabetically. | |
b81654f1 MS |
533 | */ |
534 | ||
535 | static int | |
36e53c63 | 536 | compare_selectors (const void *a, const void *b) |
b81654f1 | 537 | { |
0d5cff50 | 538 | const char *aname, *bname; |
b81654f1 | 539 | |
de5ad195 DC |
540 | aname = SYMBOL_PRINT_NAME (*(struct symbol **) a); |
541 | bname = SYMBOL_PRINT_NAME (*(struct symbol **) b); | |
7248f48e | 542 | if (aname == NULL || bname == NULL) |
8a3fe4f8 | 543 | error (_("internal: compare_selectors(1)")); |
b81654f1 | 544 | |
7248f48e AF |
545 | aname = strchr(aname, ' '); |
546 | bname = strchr(bname, ' '); | |
547 | if (aname == NULL || bname == NULL) | |
8a3fe4f8 | 548 | error (_("internal: compare_selectors(2)")); |
b81654f1 MS |
549 | |
550 | return specialcmp (aname+1, bname+1); | |
551 | } | |
552 | ||
553 | /* | |
554 | * Function: selectors_info (regexp, from_tty) | |
555 | * | |
d2e6263c MS |
556 | * Implements the "Info selectors" command. Takes an optional regexp |
557 | * arg. Lists all objective c selectors that match the regexp. Works | |
558 | * by grepping thru all symbols for objective c methods. Output list | |
559 | * is sorted and uniqued. | |
b81654f1 MS |
560 | */ |
561 | ||
562 | static void | |
1d12d88f | 563 | info_selectors_command (const char *regexp, int from_tty) |
b81654f1 MS |
564 | { |
565 | struct objfile *objfile; | |
566 | struct minimal_symbol *msymbol; | |
0d5cff50 | 567 | const char *name; |
b81654f1 MS |
568 | char *val; |
569 | int matches = 0; | |
570 | int maxlen = 0; | |
571 | int ix; | |
572 | char myregexp[2048]; | |
573 | char asel[256]; | |
574 | struct symbol **sym_arr; | |
575 | int plusminus = 0; | |
576 | ||
577 | if (regexp == NULL) | |
d2e6263c | 578 | strcpy(myregexp, ".*]"); /* Null input, match all objc methods. */ |
b81654f1 MS |
579 | else |
580 | { | |
d2e6263c MS |
581 | if (*regexp == '+' || *regexp == '-') |
582 | { /* User wants only class methods or only instance methods. */ | |
b81654f1 MS |
583 | plusminus = *regexp++; |
584 | while (*regexp == ' ' || *regexp == '\t') | |
585 | regexp++; | |
586 | } | |
587 | if (*regexp == '\0') | |
588 | strcpy(myregexp, ".*]"); | |
589 | else | |
590 | { | |
a9dc8dcc | 591 | /* Allow a few extra bytes because of the strcat below. */ |
28288541 | 592 | if (sizeof (myregexp) < strlen (regexp) + 4) |
20937029 JK |
593 | error (_("Regexp is too long: %s"), regexp); |
594 | strcpy(myregexp, regexp); | |
b81654f1 MS |
595 | if (myregexp[strlen(myregexp) - 1] == '$') /* end of selector */ |
596 | myregexp[strlen(myregexp) - 1] = ']'; /* end of method name */ | |
597 | else | |
598 | strcat(myregexp, ".*]"); | |
599 | } | |
600 | } | |
601 | ||
602 | if (regexp != NULL) | |
5e488a7b AC |
603 | { |
604 | val = re_comp (myregexp); | |
605 | if (val != 0) | |
8a3fe4f8 | 606 | error (_("Invalid regexp (%s): %s"), val, regexp); |
5e488a7b | 607 | } |
b81654f1 | 608 | |
d2e6263c | 609 | /* First time thru is JUST to get max length and count. */ |
b81654f1 MS |
610 | ALL_MSYMBOLS (objfile, msymbol) |
611 | { | |
612 | QUIT; | |
efd66ac6 | 613 | name = MSYMBOL_NATURAL_NAME (msymbol); |
3e6ef9e4 JB |
614 | if (name |
615 | && (name[0] == '-' || name[0] == '+') | |
616 | && name[1] == '[') /* Got a method name. */ | |
b81654f1 | 617 | { |
d2e6263c | 618 | /* Filter for class/instance methods. */ |
b81654f1 | 619 | if (plusminus && name[0] != plusminus) |
d2e6263c MS |
620 | continue; |
621 | /* Find selector part. */ | |
3e6ef9e4 | 622 | name = (char *) strchr (name+2, ' '); |
50412521 MS |
623 | if (name == NULL) |
624 | { | |
b98664d3 | 625 | complaint (_("Bad method name '%s'"), |
efd66ac6 | 626 | MSYMBOL_NATURAL_NAME (msymbol)); |
50412521 MS |
627 | continue; |
628 | } | |
b81654f1 MS |
629 | if (regexp == NULL || re_exec(++name) != 0) |
630 | { | |
0d5cff50 DE |
631 | const char *mystart = name; |
632 | const char *myend = strchr (mystart, ']'); | |
b81654f1 MS |
633 | |
634 | if (myend && (myend - mystart > maxlen)) | |
d2e6263c | 635 | maxlen = myend - mystart; /* Get longest selector. */ |
b81654f1 MS |
636 | matches++; |
637 | } | |
638 | } | |
639 | } | |
640 | if (matches) | |
641 | { | |
a3f17187 | 642 | printf_filtered (_("Selectors matching \"%s\":\n\n"), |
b81654f1 MS |
643 | regexp ? regexp : "*"); |
644 | ||
8d749320 | 645 | sym_arr = XALLOCAVEC (struct symbol *, matches); |
b81654f1 MS |
646 | matches = 0; |
647 | ALL_MSYMBOLS (objfile, msymbol) | |
648 | { | |
649 | QUIT; | |
efd66ac6 | 650 | name = MSYMBOL_NATURAL_NAME (msymbol); |
b81654f1 MS |
651 | if (name && |
652 | (name[0] == '-' || name[0] == '+') && | |
d2e6263c | 653 | name[1] == '[') /* Got a method name. */ |
b81654f1 | 654 | { |
d2e6263c | 655 | /* Filter for class/instance methods. */ |
b81654f1 | 656 | if (plusminus && name[0] != plusminus) |
d2e6263c MS |
657 | continue; |
658 | /* Find selector part. */ | |
659 | name = (char *) strchr(name+2, ' '); | |
b81654f1 MS |
660 | if (regexp == NULL || re_exec(++name) != 0) |
661 | sym_arr[matches++] = (struct symbol *) msymbol; | |
662 | } | |
663 | } | |
664 | ||
665 | qsort (sym_arr, matches, sizeof (struct minimal_symbol *), | |
666 | compare_selectors); | |
d2e6263c MS |
667 | /* Prevent compare on first iteration. */ |
668 | asel[0] = 0; | |
669 | for (ix = 0; ix < matches; ix++) /* Now do the output. */ | |
b81654f1 MS |
670 | { |
671 | char *p = asel; | |
672 | ||
673 | QUIT; | |
36018d2e | 674 | name = SYMBOL_NATURAL_NAME (sym_arr[ix]); |
b81654f1 MS |
675 | name = strchr (name, ' ') + 1; |
676 | if (p[0] && specialcmp(name, p) == 0) | |
d2e6263c | 677 | continue; /* Seen this one already (not unique). */ |
b81654f1 | 678 | |
d2e6263c MS |
679 | /* Copy selector part. */ |
680 | while (*name && *name != ']') | |
b81654f1 MS |
681 | *p++ = *name++; |
682 | *p++ = '\0'; | |
d2e6263c MS |
683 | /* Print in columns. */ |
684 | puts_filtered_tabular(asel, maxlen + 1, 0); | |
b81654f1 MS |
685 | } |
686 | begin_line(); | |
687 | } | |
688 | else | |
0df8b418 MS |
689 | printf_filtered (_("No selectors matching \"%s\"\n"), |
690 | regexp ? regexp : "*"); | |
b81654f1 MS |
691 | } |
692 | ||
693 | /* | |
36e53c63 | 694 | * Function: compare_classes (const void *, const void *) |
b81654f1 | 695 | * |
d2e6263c MS |
696 | * Comparison function for use with qsort. Arguments are symbols or |
697 | * msymbols Compares class part of objc method name alphabetically. | |
b81654f1 MS |
698 | */ |
699 | ||
700 | static int | |
36e53c63 | 701 | compare_classes (const void *a, const void *b) |
b81654f1 | 702 | { |
0d5cff50 | 703 | const char *aname, *bname; |
b81654f1 | 704 | |
de5ad195 DC |
705 | aname = SYMBOL_PRINT_NAME (*(struct symbol **) a); |
706 | bname = SYMBOL_PRINT_NAME (*(struct symbol **) b); | |
7248f48e | 707 | if (aname == NULL || bname == NULL) |
8a3fe4f8 | 708 | error (_("internal: compare_classes(1)")); |
b81654f1 MS |
709 | |
710 | return specialcmp (aname+1, bname+1); | |
711 | } | |
712 | ||
713 | /* | |
714 | * Function: classes_info(regexp, from_tty) | |
715 | * | |
716 | * Implements the "info classes" command for objective c classes. | |
717 | * Lists all objective c classes that match the optional regexp. | |
d2e6263c MS |
718 | * Works by grepping thru the list of objective c methods. List will |
719 | * be sorted and uniqued (since one class may have many methods). | |
720 | * BUGS: will not list a class that has no methods. | |
b81654f1 MS |
721 | */ |
722 | ||
723 | static void | |
1d12d88f | 724 | info_classes_command (const char *regexp, int from_tty) |
b81654f1 MS |
725 | { |
726 | struct objfile *objfile; | |
727 | struct minimal_symbol *msymbol; | |
0d5cff50 | 728 | const char *name; |
b81654f1 MS |
729 | char *val; |
730 | int matches = 0; | |
731 | int maxlen = 0; | |
732 | int ix; | |
733 | char myregexp[2048]; | |
734 | char aclass[256]; | |
735 | struct symbol **sym_arr; | |
736 | ||
737 | if (regexp == NULL) | |
d2e6263c | 738 | strcpy(myregexp, ".* "); /* Null input: match all objc classes. */ |
b81654f1 MS |
739 | else |
740 | { | |
a9dc8dcc | 741 | /* Allow a few extra bytes because of the strcat below. */ |
28288541 MS |
742 | if (sizeof (myregexp) < strlen (regexp) + 4) |
743 | error (_("Regexp is too long: %s"), regexp); | |
b81654f1 MS |
744 | strcpy(myregexp, regexp); |
745 | if (myregexp[strlen(myregexp) - 1] == '$') | |
d2e6263c | 746 | /* In the method name, the end of the class name is marked by ' '. */ |
b81654f1 MS |
747 | myregexp[strlen(myregexp) - 1] = ' '; |
748 | else | |
749 | strcat(myregexp, ".* "); | |
750 | } | |
751 | ||
752 | if (regexp != NULL) | |
5e488a7b AC |
753 | { |
754 | val = re_comp (myregexp); | |
755 | if (val != 0) | |
8a3fe4f8 | 756 | error (_("Invalid regexp (%s): %s"), val, regexp); |
5e488a7b | 757 | } |
b81654f1 | 758 | |
d2e6263c | 759 | /* First time thru is JUST to get max length and count. */ |
b81654f1 MS |
760 | ALL_MSYMBOLS (objfile, msymbol) |
761 | { | |
762 | QUIT; | |
efd66ac6 | 763 | name = MSYMBOL_NATURAL_NAME (msymbol); |
b81654f1 MS |
764 | if (name && |
765 | (name[0] == '-' || name[0] == '+') && | |
d2e6263c | 766 | name[1] == '[') /* Got a method name. */ |
b81654f1 MS |
767 | if (regexp == NULL || re_exec(name+2) != 0) |
768 | { | |
d2e6263c | 769 | /* Compute length of classname part. */ |
0d5cff50 DE |
770 | const char *mystart = name + 2; |
771 | const char *myend = strchr (mystart, ' '); | |
b81654f1 MS |
772 | |
773 | if (myend && (myend - mystart > maxlen)) | |
774 | maxlen = myend - mystart; | |
775 | matches++; | |
776 | } | |
777 | } | |
778 | if (matches) | |
779 | { | |
a3f17187 | 780 | printf_filtered (_("Classes matching \"%s\":\n\n"), |
b81654f1 | 781 | regexp ? regexp : "*"); |
8d749320 | 782 | sym_arr = XALLOCAVEC (struct symbol *, matches); |
b81654f1 MS |
783 | matches = 0; |
784 | ALL_MSYMBOLS (objfile, msymbol) | |
785 | { | |
786 | QUIT; | |
efd66ac6 | 787 | name = MSYMBOL_NATURAL_NAME (msymbol); |
b81654f1 MS |
788 | if (name && |
789 | (name[0] == '-' || name[0] == '+') && | |
d2e6263c | 790 | name[1] == '[') /* Got a method name. */ |
b81654f1 MS |
791 | if (regexp == NULL || re_exec(name+2) != 0) |
792 | sym_arr[matches++] = (struct symbol *) msymbol; | |
793 | } | |
794 | ||
795 | qsort (sym_arr, matches, sizeof (struct minimal_symbol *), | |
796 | compare_classes); | |
d2e6263c MS |
797 | /* Prevent compare on first iteration. */ |
798 | aclass[0] = 0; | |
799 | for (ix = 0; ix < matches; ix++) /* Now do the output. */ | |
b81654f1 MS |
800 | { |
801 | char *p = aclass; | |
802 | ||
803 | QUIT; | |
36018d2e | 804 | name = SYMBOL_NATURAL_NAME (sym_arr[ix]); |
b81654f1 MS |
805 | name += 2; |
806 | if (p[0] && specialcmp(name, p) == 0) | |
d2e6263c | 807 | continue; /* Seen this one already (not unique). */ |
b81654f1 | 808 | |
d2e6263c MS |
809 | /* Copy class part of method name. */ |
810 | while (*name && *name != ' ') | |
b81654f1 MS |
811 | *p++ = *name++; |
812 | *p++ = '\0'; | |
d2e6263c MS |
813 | /* Print in columns. */ |
814 | puts_filtered_tabular(aclass, maxlen + 1, 0); | |
b81654f1 MS |
815 | } |
816 | begin_line(); | |
817 | } | |
818 | else | |
a3f17187 | 819 | printf_filtered (_("No classes matching \"%s\"\n"), regexp ? regexp : "*"); |
b81654f1 MS |
820 | } |
821 | ||
f8eba3c6 | 822 | static char * |
b81654f1 MS |
823 | parse_selector (char *method, char **selector) |
824 | { | |
825 | char *s1 = NULL; | |
826 | char *s2 = NULL; | |
827 | int found_quote = 0; | |
828 | ||
829 | char *nselector = NULL; | |
830 | ||
e8f3fcdd | 831 | gdb_assert (selector != NULL); |
b81654f1 MS |
832 | |
833 | s1 = method; | |
834 | ||
529480d0 | 835 | s1 = skip_spaces (s1); |
b81654f1 MS |
836 | if (*s1 == '\'') |
837 | { | |
838 | found_quote = 1; | |
839 | s1++; | |
840 | } | |
529480d0 | 841 | s1 = skip_spaces (s1); |
b81654f1 MS |
842 | |
843 | nselector = s1; | |
844 | s2 = s1; | |
845 | ||
5cc80db3 MS |
846 | for (;;) |
847 | { | |
848 | if (isalnum (*s2) || (*s2 == '_') || (*s2 == ':')) | |
849 | *s1++ = *s2; | |
850 | else if (isspace (*s2)) | |
851 | ; | |
852 | else if ((*s2 == '\0') || (*s2 == '\'')) | |
853 | break; | |
854 | else | |
855 | return NULL; | |
856 | s2++; | |
857 | } | |
b81654f1 MS |
858 | *s1++ = '\0'; |
859 | ||
529480d0 | 860 | s2 = skip_spaces (s2); |
b81654f1 MS |
861 | if (found_quote) |
862 | { | |
863 | if (*s2 == '\'') | |
864 | s2++; | |
529480d0 | 865 | s2 = skip_spaces (s2); |
b81654f1 MS |
866 | } |
867 | ||
868 | if (selector != NULL) | |
869 | *selector = nselector; | |
870 | ||
871 | return s2; | |
872 | } | |
873 | ||
f8eba3c6 | 874 | static char * |
fe978cb0 | 875 | parse_method (char *method, char *type, char **theclass, |
d2e6263c | 876 | char **category, char **selector) |
b81654f1 MS |
877 | { |
878 | char *s1 = NULL; | |
879 | char *s2 = NULL; | |
880 | int found_quote = 0; | |
881 | ||
882 | char ntype = '\0'; | |
883 | char *nclass = NULL; | |
884 | char *ncategory = NULL; | |
885 | char *nselector = NULL; | |
886 | ||
e8f3fcdd | 887 | gdb_assert (type != NULL); |
fe978cb0 | 888 | gdb_assert (theclass != NULL); |
e8f3fcdd AC |
889 | gdb_assert (category != NULL); |
890 | gdb_assert (selector != NULL); | |
b81654f1 MS |
891 | |
892 | s1 = method; | |
893 | ||
529480d0 | 894 | s1 = skip_spaces (s1); |
b81654f1 MS |
895 | if (*s1 == '\'') |
896 | { | |
897 | found_quote = 1; | |
898 | s1++; | |
899 | } | |
529480d0 | 900 | s1 = skip_spaces (s1); |
b81654f1 MS |
901 | |
902 | if ((s1[0] == '+') || (s1[0] == '-')) | |
903 | ntype = *s1++; | |
904 | ||
529480d0 | 905 | s1 = skip_spaces (s1); |
b81654f1 MS |
906 | |
907 | if (*s1 != '[') | |
908 | return NULL; | |
909 | s1++; | |
910 | ||
911 | nclass = s1; | |
912 | while (isalnum (*s1) || (*s1 == '_')) | |
913 | s1++; | |
914 | ||
915 | s2 = s1; | |
529480d0 | 916 | s2 = skip_spaces (s2); |
b81654f1 MS |
917 | |
918 | if (*s2 == '(') | |
919 | { | |
920 | s2++; | |
529480d0 | 921 | s2 = skip_spaces (s2); |
b81654f1 MS |
922 | ncategory = s2; |
923 | while (isalnum (*s2) || (*s2 == '_')) | |
924 | s2++; | |
925 | *s2++ = '\0'; | |
926 | } | |
927 | ||
d2e6263c | 928 | /* Truncate the class name now that we're not using the open paren. */ |
b81654f1 MS |
929 | *s1++ = '\0'; |
930 | ||
931 | nselector = s2; | |
932 | s1 = s2; | |
933 | ||
5cc80db3 MS |
934 | for (;;) |
935 | { | |
936 | if (isalnum (*s2) || (*s2 == '_') || (*s2 == ':')) | |
937 | *s1++ = *s2; | |
938 | else if (isspace (*s2)) | |
939 | ; | |
940 | else if (*s2 == ']') | |
941 | break; | |
942 | else | |
943 | return NULL; | |
944 | s2++; | |
945 | } | |
b81654f1 MS |
946 | *s1++ = '\0'; |
947 | s2++; | |
948 | ||
529480d0 | 949 | s2 = skip_spaces (s2); |
b81654f1 MS |
950 | if (found_quote) |
951 | { | |
952 | if (*s2 != '\'') | |
953 | return NULL; | |
954 | s2++; | |
529480d0 | 955 | s2 = skip_spaces (s2); |
b81654f1 MS |
956 | } |
957 | ||
958 | if (type != NULL) | |
959 | *type = ntype; | |
fe978cb0 PA |
960 | if (theclass != NULL) |
961 | *theclass = nclass; | |
b81654f1 MS |
962 | if (category != NULL) |
963 | *category = ncategory; | |
964 | if (selector != NULL) | |
965 | *selector = nselector; | |
966 | ||
967 | return s2; | |
968 | } | |
969 | ||
2f9a90b4 | 970 | static void |
fe978cb0 | 971 | find_methods (char type, const char *theclass, const char *category, |
f8eba3c6 | 972 | const char *selector, |
9b2f8581 | 973 | std::vector<const char *> *symbol_names) |
b81654f1 | 974 | { |
0d5cff50 | 975 | const char *symname = NULL; |
b81654f1 MS |
976 | |
977 | char ntype = '\0'; | |
978 | char *nclass = NULL; | |
979 | char *ncategory = NULL; | |
980 | char *nselector = NULL; | |
981 | ||
b81654f1 MS |
982 | static char *tmp = NULL; |
983 | static unsigned int tmplen = 0; | |
984 | ||
f8eba3c6 | 985 | gdb_assert (symbol_names != NULL); |
b81654f1 | 986 | |
aed57c53 | 987 | for (objfile *objfile : all_objfiles (current_program_space)) |
b81654f1 | 988 | { |
57a9e6af | 989 | unsigned int *objc_csym; |
f8eba3c6 | 990 | struct minimal_symbol *msymbol = NULL; |
b81654f1 | 991 | |
57a9e6af PP |
992 | /* The objfile_csym variable counts the number of ObjC methods |
993 | that this objfile defines. We save that count as a private | |
994 | objfile data. If we have already determined that this objfile | |
995 | provides no ObjC methods, we can skip it entirely. */ | |
b81654f1 | 996 | |
57a9e6af | 997 | unsigned int objfile_csym = 0; |
b81654f1 | 998 | |
19ba03f4 | 999 | objc_csym = (unsigned int *) objfile_data (objfile, objc_objfile_data); |
57a9e6af PP |
1000 | if (objc_csym != NULL && *objc_csym == 0) |
1001 | /* There are no ObjC symbols in this objfile. Skip it entirely. */ | |
b81654f1 MS |
1002 | continue; |
1003 | ||
57a9e6af | 1004 | ALL_OBJFILE_MSYMBOLS (objfile, msymbol) |
b81654f1 | 1005 | { |
57a9e6af | 1006 | QUIT; |
b81654f1 | 1007 | |
0c4b2e63 MF |
1008 | /* Check the symbol name first as this can be done entirely without |
1009 | sending any query to the target. */ | |
efd66ac6 | 1010 | symname = MSYMBOL_NATURAL_NAME (msymbol); |
0c4b2e63 MF |
1011 | if (symname == NULL) |
1012 | continue; | |
1013 | ||
1014 | if ((symname[0] != '-' && symname[0] != '+') || (symname[1] != '[')) | |
1015 | /* Not a method name. */ | |
1016 | continue; | |
1017 | ||
8dfd1e6d KS |
1018 | objfile_csym++; |
1019 | ||
0c4b2e63 | 1020 | /* Now that thinks are a bit sane, clean up the symname. */ |
57a9e6af PP |
1021 | while ((strlen (symname) + 1) >= tmplen) |
1022 | { | |
1023 | tmplen = (tmplen == 0) ? 1024 : tmplen * 2; | |
224c3ddb | 1024 | tmp = (char *) xrealloc (tmp, tmplen); |
57a9e6af PP |
1025 | } |
1026 | strcpy (tmp, symname); | |
b81654f1 | 1027 | |
0df8b418 MS |
1028 | if (parse_method (tmp, &ntype, &nclass, |
1029 | &ncategory, &nselector) == NULL) | |
57a9e6af | 1030 | continue; |
b81654f1 | 1031 | |
57a9e6af PP |
1032 | if ((type != '\0') && (ntype != type)) |
1033 | continue; | |
b81654f1 | 1034 | |
fe978cb0 PA |
1035 | if ((theclass != NULL) |
1036 | && ((nclass == NULL) || (strcmp (theclass, nclass) != 0))) | |
57a9e6af PP |
1037 | continue; |
1038 | ||
1039 | if ((category != NULL) && | |
1040 | ((ncategory == NULL) || (strcmp (category, ncategory) != 0))) | |
1041 | continue; | |
b81654f1 | 1042 | |
57a9e6af PP |
1043 | if ((selector != NULL) && |
1044 | ((nselector == NULL) || (strcmp (selector, nselector) != 0))) | |
1045 | continue; | |
1046 | ||
9b2f8581 | 1047 | symbol_names->push_back (symname); |
57a9e6af | 1048 | } |
f8eba3c6 | 1049 | |
57a9e6af | 1050 | if (objc_csym == NULL) |
b81654f1 | 1051 | { |
8d749320 | 1052 | objc_csym = XOBNEW (&objfile->objfile_obstack, unsigned int); |
57a9e6af PP |
1053 | *objc_csym = objfile_csym; |
1054 | set_objfile_data (objfile, objc_objfile_data, objc_csym); | |
b81654f1 | 1055 | } |
57a9e6af PP |
1056 | else |
1057 | /* Count of ObjC methods in this objfile should be constant. */ | |
1058 | gdb_assert (*objc_csym == objfile_csym); | |
b81654f1 | 1059 | } |
f8eba3c6 | 1060 | } |
b81654f1 | 1061 | |
f8eba3c6 TT |
1062 | /* Uniquify a VEC of strings. */ |
1063 | ||
1064 | static void | |
9b2f8581 | 1065 | uniquify_strings (std::vector<const char *> *strings) |
f8eba3c6 | 1066 | { |
9b2f8581 | 1067 | if (strings->empty ()) |
ee7615e1 AA |
1068 | return; |
1069 | ||
9b2f8581 TT |
1070 | std::sort (strings->begin (), strings->end (), compare_cstrings); |
1071 | strings->erase (std::unique (strings->begin (), strings->end (), streq), | |
1072 | strings->end ()); | |
b81654f1 MS |
1073 | } |
1074 | ||
f8eba3c6 | 1075 | /* |
d7561cbb | 1076 | * Function: find_imps (const char *selector, struct symbol **sym_arr) |
f8eba3c6 TT |
1077 | * |
1078 | * Input: a string representing a selector | |
1079 | * a pointer to an array of symbol pointers | |
1080 | * possibly a pointer to a symbol found by the caller. | |
1081 | * | |
1082 | * Output: number of methods that implement that selector. Side | |
1083 | * effects: The array of symbol pointers is filled with matching syms. | |
1084 | * | |
1085 | * By analogy with function "find_methods" (symtab.c), builds a list | |
1086 | * of symbols matching the ambiguous input, so that "decode_line_2" | |
1087 | * (symtab.c) can list them and ask the user to choose one or more. | |
1088 | * In this case the matches are objective c methods | |
1089 | * ("implementations") matching an objective c selector. | |
1090 | * | |
1091 | * Note that it is possible for a normal (c-style) function to have | |
1092 | * the same name as an objective c selector. To prevent the selector | |
1093 | * from eclipsing the function, we allow the caller (decode_line_1) to | |
1094 | * search for such a function first, and if it finds one, pass it in | |
1095 | * to us. We will then integrate it into the list. We also search | |
1096 | * for one here, among the minsyms. | |
1097 | * | |
1098 | * NOTE: if NUM_DEBUGGABLE is non-zero, the sym_arr will be divided | |
1099 | * into two parts: debuggable (struct symbol) syms, and | |
1100 | * non_debuggable (struct minimal_symbol) syms. The debuggable | |
1101 | * ones will come first, before NUM_DEBUGGABLE (which will thus | |
1102 | * be the index of the first non-debuggable one). | |
1103 | */ | |
1104 | ||
d7561cbb | 1105 | const char * |
9b2f8581 | 1106 | find_imps (const char *method, std::vector<const char *> *symbol_names) |
b81654f1 MS |
1107 | { |
1108 | char type = '\0'; | |
fe978cb0 | 1109 | char *theclass = NULL; |
b81654f1 MS |
1110 | char *category = NULL; |
1111 | char *selector = NULL; | |
1112 | ||
b81654f1 MS |
1113 | char *buf = NULL; |
1114 | char *tmp = NULL; | |
1115 | ||
f8eba3c6 | 1116 | int selector_case = 0; |
b81654f1 | 1117 | |
f8eba3c6 | 1118 | gdb_assert (symbol_names != NULL); |
b81654f1 MS |
1119 | |
1120 | buf = (char *) alloca (strlen (method) + 1); | |
1121 | strcpy (buf, method); | |
fe978cb0 | 1122 | tmp = parse_method (buf, &type, &theclass, &category, &selector); |
b81654f1 | 1123 | |
5cc80db3 MS |
1124 | if (tmp == NULL) |
1125 | { | |
5cc80db3 MS |
1126 | strcpy (buf, method); |
1127 | tmp = parse_selector (buf, &selector); | |
b81654f1 | 1128 | |
5cc80db3 MS |
1129 | if (tmp == NULL) |
1130 | return NULL; | |
1131 | ||
f8eba3c6 | 1132 | selector_case = 1; |
5cc80db3 | 1133 | } |
b81654f1 | 1134 | |
fe978cb0 | 1135 | find_methods (type, theclass, category, selector, symbol_names); |
b81654f1 | 1136 | |
f8eba3c6 TT |
1137 | /* If we hit the "selector" case, and we found some methods, then |
1138 | add the selector itself as a symbol, if it exists. */ | |
9b2f8581 | 1139 | if (selector_case && !symbol_names->empty ()) |
b81654f1 | 1140 | { |
d12307c1 PMR |
1141 | struct symbol *sym = lookup_symbol (selector, NULL, VAR_DOMAIN, |
1142 | 0).symbol; | |
f8eba3c6 TT |
1143 | |
1144 | if (sym != NULL) | |
9b2f8581 | 1145 | symbol_names->push_back (SYMBOL_NATURAL_NAME (sym)); |
f8eba3c6 | 1146 | else |
b81654f1 | 1147 | { |
3b7344d5 TT |
1148 | struct bound_minimal_symbol msym |
1149 | = lookup_minimal_symbol (selector, 0, 0); | |
f8eba3c6 | 1150 | |
3b7344d5 | 1151 | if (msym.minsym != NULL) |
9b2f8581 | 1152 | symbol_names->push_back (MSYMBOL_NATURAL_NAME (msym.minsym)); |
b81654f1 MS |
1153 | } |
1154 | } | |
1155 | ||
f8eba3c6 | 1156 | uniquify_strings (symbol_names); |
b81654f1 MS |
1157 | |
1158 | return method + (tmp - buf); | |
1159 | } | |
1160 | ||
b9362cc7 | 1161 | static void |
0b39b52e | 1162 | print_object_command (const char *args, int from_tty) |
b81654f1 MS |
1163 | { |
1164 | struct value *object, *function, *description; | |
36e53c63 | 1165 | CORE_ADDR string_addr, object_addr; |
b81654f1 | 1166 | int i = 0; |
22a44745 | 1167 | gdb_byte c = 0; |
b81654f1 MS |
1168 | |
1169 | if (!args || !*args) | |
d2e6263c MS |
1170 | error ( |
1171 | "The 'print-object' command requires an argument (an Objective-C object)"); | |
b81654f1 MS |
1172 | |
1173 | { | |
4d01a485 | 1174 | expression_up expr = parse_expression (args); |
b81654f1 MS |
1175 | int pc = 0; |
1176 | ||
4b27a620 | 1177 | object = evaluate_subexp (builtin_type (expr->gdbarch)->builtin_data_ptr, |
4d01a485 | 1178 | expr.get (), &pc, EVAL_NORMAL); |
b81654f1 MS |
1179 | } |
1180 | ||
36e53c63 AF |
1181 | /* Validate the address for sanity. */ |
1182 | object_addr = value_as_long (object); | |
1183 | read_memory (object_addr, &c, 1); | |
1184 | ||
3e3b026f | 1185 | function = find_function_in_inferior ("_NSPrintForDebugger", NULL); |
36e53c63 | 1186 | if (function == NULL) |
8a3fe4f8 | 1187 | error (_("Unable to locate _NSPrintForDebugger in child process")); |
b81654f1 | 1188 | |
e71585ff | 1189 | description = call_function_by_hand (function, NULL, object); |
b81654f1 | 1190 | |
7248f48e AF |
1191 | string_addr = value_as_long (description); |
1192 | if (string_addr == 0) | |
8a3fe4f8 | 1193 | error (_("object returns null description")); |
b81654f1 MS |
1194 | |
1195 | read_memory (string_addr + i++, &c, 1); | |
22a44745 | 1196 | if (c != 0) |
b81654f1 | 1197 | do |
d2e6263c | 1198 | { /* Read and print characters up to EOS. */ |
b81654f1 MS |
1199 | QUIT; |
1200 | printf_filtered ("%c", c); | |
1201 | read_memory (string_addr + i++, &c, 1); | |
1202 | } while (c != 0); | |
1203 | else | |
a3f17187 | 1204 | printf_filtered(_("<object returns empty description>")); |
b81654f1 MS |
1205 | printf_filtered ("\n"); |
1206 | } | |
1207 | ||
d2e6263c MS |
1208 | /* The data structure 'methcalls' is used to detect method calls (thru |
1209 | * ObjC runtime lib functions objc_msgSend, objc_msgSendSuper, etc.), | |
0df8b418 | 1210 | * and ultimately find the method being called. |
b81654f1 MS |
1211 | */ |
1212 | ||
1213 | struct objc_methcall { | |
a121b7c1 | 1214 | const char *name; |
d2e6263c | 1215 | /* Return instance method to be called. */ |
36e53c63 | 1216 | int (*stop_at) (CORE_ADDR, CORE_ADDR *); |
d2e6263c MS |
1217 | /* Start of pc range corresponding to method invocation. */ |
1218 | CORE_ADDR begin; | |
1219 | /* End of pc range corresponding to method invocation. */ | |
1220 | CORE_ADDR end; | |
b81654f1 MS |
1221 | }; |
1222 | ||
d2e6263c MS |
1223 | static int resolve_msgsend (CORE_ADDR pc, CORE_ADDR *new_pc); |
1224 | static int resolve_msgsend_stret (CORE_ADDR pc, CORE_ADDR *new_pc); | |
1225 | static int resolve_msgsend_super (CORE_ADDR pc, CORE_ADDR *new_pc); | |
1226 | static int resolve_msgsend_super_stret (CORE_ADDR pc, CORE_ADDR *new_pc); | |
b81654f1 MS |
1227 | |
1228 | static struct objc_methcall methcalls[] = { | |
1229 | { "_objc_msgSend", resolve_msgsend, 0, 0}, | |
1230 | { "_objc_msgSend_stret", resolve_msgsend_stret, 0, 0}, | |
1231 | { "_objc_msgSendSuper", resolve_msgsend_super, 0, 0}, | |
1232 | { "_objc_msgSendSuper_stret", resolve_msgsend_super_stret, 0, 0}, | |
1233 | { "_objc_getClass", NULL, 0, 0}, | |
1234 | { "_objc_getMetaClass", NULL, 0, 0} | |
1235 | }; | |
1236 | ||
1237 | #define nmethcalls (sizeof (methcalls) / sizeof (methcalls[0])) | |
1238 | ||
d2e6263c MS |
1239 | /* The following function, "find_objc_msgsend", fills in the data |
1240 | * structure "objc_msgs" by finding the addresses of each of the | |
1241 | * (currently four) functions that it holds (of which objc_msgSend is | |
1242 | * the first). This must be called each time symbols are loaded, in | |
0df8b418 | 1243 | * case the functions have moved for some reason. |
b81654f1 MS |
1244 | */ |
1245 | ||
b9362cc7 | 1246 | static void |
b81654f1 MS |
1247 | find_objc_msgsend (void) |
1248 | { | |
1249 | unsigned int i; | |
b81654f1 | 1250 | |
5cc80db3 MS |
1251 | for (i = 0; i < nmethcalls; i++) |
1252 | { | |
50e65b17 | 1253 | struct bound_minimal_symbol func; |
b81654f1 | 1254 | |
5cc80db3 | 1255 | /* Try both with and without underscore. */ |
50e65b17 TT |
1256 | func = lookup_bound_minimal_symbol (methcalls[i].name); |
1257 | if ((func.minsym == NULL) && (methcalls[i].name[0] == '_')) | |
5cc80db3 | 1258 | { |
50e65b17 | 1259 | func = lookup_bound_minimal_symbol (methcalls[i].name + 1); |
5cc80db3 | 1260 | } |
50e65b17 | 1261 | if (func.minsym == NULL) |
5cc80db3 MS |
1262 | { |
1263 | methcalls[i].begin = 0; | |
1264 | methcalls[i].end = 0; | |
1265 | continue; | |
1266 | } | |
1267 | ||
77e371c0 | 1268 | methcalls[i].begin = BMSYMBOL_VALUE_ADDRESS (func); |
50e65b17 | 1269 | methcalls[i].end = minimal_symbol_upper_bound (func); |
b81654f1 | 1270 | } |
b81654f1 MS |
1271 | } |
1272 | ||
1273 | /* find_objc_msgcall (replaces pc_off_limits) | |
1274 | * | |
d2e6263c MS |
1275 | * ALL that this function now does is to determine whether the input |
1276 | * address ("pc") is the address of one of the Objective-C message | |
b81654f1 MS |
1277 | * dispatch functions (mainly objc_msgSend or objc_msgSendSuper), and |
1278 | * if so, it returns the address of the method that will be called. | |
1279 | * | |
1280 | * The old function "pc_off_limits" used to do a lot of other things | |
d2e6263c | 1281 | * in addition, such as detecting shared library jump stubs and |
b81654f1 | 1282 | * returning the address of the shlib function that would be called. |
e76f05fa | 1283 | * That functionality has been moved into the gdbarch_skip_trampoline_code and |
d2e6263c | 1284 | * IN_SOLIB_TRAMPOLINE macros, which are resolved in the target- |
0df8b418 | 1285 | * dependent modules. |
b81654f1 MS |
1286 | */ |
1287 | ||
b9362cc7 | 1288 | static int |
36e53c63 | 1289 | find_objc_msgcall_submethod (int (*f) (CORE_ADDR, CORE_ADDR *), |
d2e6263c MS |
1290 | CORE_ADDR pc, |
1291 | CORE_ADDR *new_pc) | |
b81654f1 | 1292 | { |
bf469271 PA |
1293 | TRY |
1294 | { | |
1295 | if (f (pc, new_pc) == 0) | |
1296 | return 1; | |
1297 | } | |
1298 | CATCH (ex, RETURN_MASK_ALL) | |
1299 | { | |
1300 | exception_fprintf (gdb_stderr, ex, | |
1301 | "Unable to determine target of " | |
1302 | "Objective-C method call (ignoring):\n"); | |
1303 | } | |
1304 | END_CATCH | |
1305 | ||
1306 | return 0; | |
b81654f1 MS |
1307 | } |
1308 | ||
1309 | int | |
1310 | find_objc_msgcall (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1311 | { | |
1312 | unsigned int i; | |
1313 | ||
1314 | find_objc_msgsend (); | |
5e488a7b AC |
1315 | if (new_pc != NULL) |
1316 | { | |
1317 | *new_pc = 0; | |
1318 | } | |
b81654f1 | 1319 | |
d2e6263c MS |
1320 | for (i = 0; i < nmethcalls; i++) |
1321 | if ((pc >= methcalls[i].begin) && (pc < methcalls[i].end)) | |
1322 | { | |
1323 | if (methcalls[i].stop_at != NULL) | |
1324 | return find_objc_msgcall_submethod (methcalls[i].stop_at, | |
1325 | pc, new_pc); | |
1326 | else | |
1327 | return 0; | |
b81654f1 | 1328 | } |
d2e6263c | 1329 | |
b81654f1 MS |
1330 | return 0; |
1331 | } | |
1332 | ||
1333 | void | |
1334 | _initialize_objc_language (void) | |
1335 | { | |
11db9430 | 1336 | add_info ("selectors", info_selectors_command, |
1bedd215 | 1337 | _("All Objective-C selectors, or those matching REGEXP.")); |
11db9430 | 1338 | add_info ("classes", info_classes_command, |
1bedd215 | 1339 | _("All Objective-C classes, or those matching REGEXP.")); |
b81654f1 | 1340 | add_com ("print-object", class_vars, print_object_command, |
1bedd215 | 1341 | _("Ask an Objective-C object to print itself.")); |
b81654f1 MS |
1342 | add_com_alias ("po", "print-object", class_vars, 1); |
1343 | } | |
1344 | ||
b81654f1 | 1345 | static void |
e17a4113 UW |
1346 | read_objc_method (struct gdbarch *gdbarch, CORE_ADDR addr, |
1347 | struct objc_method *method) | |
b81654f1 | 1348 | { |
e17a4113 | 1349 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1350 | |
e17a4113 UW |
1351 | method->name = read_memory_unsigned_integer (addr + 0, 4, byte_order); |
1352 | method->types = read_memory_unsigned_integer (addr + 4, 4, byte_order); | |
1353 | method->imp = read_memory_unsigned_integer (addr + 8, 4, byte_order); | |
b81654f1 MS |
1354 | } |
1355 | ||
e17a4113 UW |
1356 | static unsigned long |
1357 | read_objc_methlist_nmethods (struct gdbarch *gdbarch, CORE_ADDR addr) | |
b81654f1 | 1358 | { |
e17a4113 | 1359 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1360 | |
e17a4113 | 1361 | return read_memory_unsigned_integer (addr + 4, 4, byte_order); |
b81654f1 MS |
1362 | } |
1363 | ||
1364 | static void | |
e17a4113 UW |
1365 | read_objc_methlist_method (struct gdbarch *gdbarch, CORE_ADDR addr, |
1366 | unsigned long num, struct objc_method *method) | |
b81654f1 | 1367 | { |
e17a4113 UW |
1368 | gdb_assert (num < read_objc_methlist_nmethods (gdbarch, addr)); |
1369 | read_objc_method (gdbarch, addr + 8 + (12 * num), method); | |
b81654f1 MS |
1370 | } |
1371 | ||
1372 | static void | |
e17a4113 UW |
1373 | read_objc_object (struct gdbarch *gdbarch, CORE_ADDR addr, |
1374 | struct objc_object *object) | |
b81654f1 | 1375 | { |
e17a4113 | 1376 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1377 | |
e17a4113 | 1378 | object->isa = read_memory_unsigned_integer (addr, 4, byte_order); |
b81654f1 MS |
1379 | } |
1380 | ||
1381 | static void | |
e17a4113 UW |
1382 | read_objc_super (struct gdbarch *gdbarch, CORE_ADDR addr, |
1383 | struct objc_super *super) | |
b81654f1 | 1384 | { |
e17a4113 | 1385 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1386 | |
e17a4113 | 1387 | super->receiver = read_memory_unsigned_integer (addr, 4, byte_order); |
fe978cb0 | 1388 | super->theclass = read_memory_unsigned_integer (addr + 4, 4, byte_order); |
b81654f1 MS |
1389 | }; |
1390 | ||
1391 | static void | |
e17a4113 | 1392 | read_objc_class (struct gdbarch *gdbarch, CORE_ADDR addr, |
fe978cb0 | 1393 | struct objc_class *theclass) |
b81654f1 | 1394 | { |
e17a4113 | 1395 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1396 | |
fe978cb0 PA |
1397 | theclass->isa = read_memory_unsigned_integer (addr, 4, byte_order); |
1398 | theclass->super_class = read_memory_unsigned_integer (addr + 4, 4, byte_order); | |
1399 | theclass->name = read_memory_unsigned_integer (addr + 8, 4, byte_order); | |
1400 | theclass->version = read_memory_unsigned_integer (addr + 12, 4, byte_order); | |
1401 | theclass->info = read_memory_unsigned_integer (addr + 16, 4, byte_order); | |
1402 | theclass->instance_size = read_memory_unsigned_integer (addr + 18, 4, | |
0df8b418 | 1403 | byte_order); |
fe978cb0 PA |
1404 | theclass->ivars = read_memory_unsigned_integer (addr + 24, 4, byte_order); |
1405 | theclass->methods = read_memory_unsigned_integer (addr + 28, 4, byte_order); | |
1406 | theclass->cache = read_memory_unsigned_integer (addr + 32, 4, byte_order); | |
1407 | theclass->protocols = read_memory_unsigned_integer (addr + 36, 4, byte_order); | |
b81654f1 MS |
1408 | } |
1409 | ||
b9362cc7 | 1410 | static CORE_ADDR |
e17a4113 | 1411 | find_implementation_from_class (struct gdbarch *gdbarch, |
fe978cb0 | 1412 | CORE_ADDR theclass, CORE_ADDR sel) |
b81654f1 | 1413 | { |
e17a4113 | 1414 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
fe978cb0 | 1415 | CORE_ADDR subclass = theclass; |
b81654f1 | 1416 | |
d2e6263c MS |
1417 | while (subclass != 0) |
1418 | { | |
b81654f1 | 1419 | |
d2e6263c MS |
1420 | struct objc_class class_str; |
1421 | unsigned mlistnum = 0; | |
b81654f1 | 1422 | |
e17a4113 | 1423 | read_objc_class (gdbarch, subclass, &class_str); |
b81654f1 | 1424 | |
d2e6263c MS |
1425 | for (;;) |
1426 | { | |
1427 | CORE_ADDR mlist; | |
1428 | unsigned long nmethods; | |
1429 | unsigned long i; | |
b81654f1 | 1430 | |
d2e6263c | 1431 | mlist = read_memory_unsigned_integer (class_str.methods + |
e17a4113 UW |
1432 | (4 * mlistnum), |
1433 | 4, byte_order); | |
d2e6263c MS |
1434 | if (mlist == 0) |
1435 | break; | |
b81654f1 | 1436 | |
e17a4113 | 1437 | nmethods = read_objc_methlist_nmethods (gdbarch, mlist); |
b81654f1 | 1438 | |
d2e6263c MS |
1439 | for (i = 0; i < nmethods; i++) |
1440 | { | |
1441 | struct objc_method meth_str; | |
b81654f1 | 1442 | |
5cc80db3 | 1443 | read_objc_methlist_method (gdbarch, mlist, i, &meth_str); |
b81654f1 | 1444 | |
d2e6263c | 1445 | if (meth_str.name == sel) |
1abf022c | 1446 | /* FIXME: hppa arch was doing a pointer dereference |
0df8b418 | 1447 | here. There needs to be a better way to do that. */ |
1abf022c | 1448 | return meth_str.imp; |
d2e6263c MS |
1449 | } |
1450 | mlistnum++; | |
b81654f1 | 1451 | } |
d2e6263c | 1452 | subclass = class_str.super_class; |
b81654f1 | 1453 | } |
b81654f1 MS |
1454 | |
1455 | return 0; | |
1456 | } | |
1457 | ||
b9362cc7 | 1458 | static CORE_ADDR |
e17a4113 UW |
1459 | find_implementation (struct gdbarch *gdbarch, |
1460 | CORE_ADDR object, CORE_ADDR sel) | |
b81654f1 MS |
1461 | { |
1462 | struct objc_object ostr; | |
1463 | ||
d2e6263c MS |
1464 | if (object == 0) |
1465 | return 0; | |
e17a4113 | 1466 | read_objc_object (gdbarch, object, &ostr); |
d2e6263c MS |
1467 | if (ostr.isa == 0) |
1468 | return 0; | |
b81654f1 | 1469 | |
e17a4113 | 1470 | return find_implementation_from_class (gdbarch, ostr.isa, sel); |
b81654f1 MS |
1471 | } |
1472 | ||
1473 | static int | |
1474 | resolve_msgsend (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1475 | { | |
5ed92fa8 UW |
1476 | struct frame_info *frame = get_current_frame (); |
1477 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1478 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1479 | ||
b81654f1 MS |
1480 | CORE_ADDR object; |
1481 | CORE_ADDR sel; | |
1482 | CORE_ADDR res; | |
1483 | ||
5ed92fa8 UW |
1484 | object = gdbarch_fetch_pointer_argument (gdbarch, frame, 0, ptr_type); |
1485 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); | |
b81654f1 | 1486 | |
e17a4113 | 1487 | res = find_implementation (gdbarch, object, sel); |
d2e6263c MS |
1488 | if (new_pc != 0) |
1489 | *new_pc = res; | |
1490 | if (res == 0) | |
1491 | return 1; | |
b81654f1 MS |
1492 | return 0; |
1493 | } | |
1494 | ||
1495 | static int | |
1496 | resolve_msgsend_stret (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, 1, ptr_type); |
1507 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 2, 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_super (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 | struct objc_super sstr; |
1525 | ||
1526 | CORE_ADDR super; | |
1527 | CORE_ADDR sel; | |
1528 | CORE_ADDR res; | |
1529 | ||
5ed92fa8 UW |
1530 | super = gdbarch_fetch_pointer_argument (gdbarch, frame, 0, ptr_type); |
1531 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); | |
b81654f1 | 1532 | |
e17a4113 | 1533 | read_objc_super (gdbarch, super, &sstr); |
fe978cb0 | 1534 | if (sstr.theclass == 0) |
d2e6263c | 1535 | return 0; |
b81654f1 | 1536 | |
fe978cb0 | 1537 | res = find_implementation_from_class (gdbarch, sstr.theclass, sel); |
d2e6263c MS |
1538 | if (new_pc != 0) |
1539 | *new_pc = res; | |
1540 | if (res == 0) | |
1541 | return 1; | |
b81654f1 MS |
1542 | return 0; |
1543 | } | |
1544 | ||
1545 | static int | |
1546 | resolve_msgsend_super_stret (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1547 | { | |
5ed92fa8 UW |
1548 | struct frame_info *frame = get_current_frame (); |
1549 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1550 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1551 | ||
b81654f1 MS |
1552 | struct objc_super sstr; |
1553 | ||
1554 | CORE_ADDR super; | |
1555 | CORE_ADDR sel; | |
1556 | CORE_ADDR res; | |
1557 | ||
5ed92fa8 UW |
1558 | super = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); |
1559 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 2, ptr_type); | |
b81654f1 | 1560 | |
e17a4113 | 1561 | read_objc_super (gdbarch, super, &sstr); |
fe978cb0 | 1562 | if (sstr.theclass == 0) |
d2e6263c | 1563 | return 0; |
b81654f1 | 1564 | |
fe978cb0 | 1565 | res = find_implementation_from_class (gdbarch, sstr.theclass, sel); |
d2e6263c MS |
1566 | if (new_pc != 0) |
1567 | *new_pc = res; | |
1568 | if (res == 0) | |
1569 | return 1; | |
b81654f1 MS |
1570 | return 0; |
1571 | } | |
57a9e6af PP |
1572 | |
1573 | void | |
1574 | _initialize_objc_lang (void) | |
1575 | { | |
1576 | objc_objfile_data = register_objfile_data (); | |
1577 | } |