Commit | Line | Data |
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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" | |
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 | ||
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 | ||
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 | ||
f636b87d AF |
284 | /* Determine if we are currently in the Objective-C dispatch function. |
285 | If so, get the address of the method function that the dispatcher | |
0df8b418 | 286 | would call and use that as the function to step into instead. Also |
f636b87d AF |
287 | skip over the trampoline for the function (if any). This is better |
288 | for the user since they are only interested in stepping into the | |
289 | method function anyway. */ | |
290 | static CORE_ADDR | |
52f729a7 | 291 | objc_skip_trampoline (struct frame_info *frame, CORE_ADDR stop_pc) |
f636b87d | 292 | { |
d80b854b | 293 | struct gdbarch *gdbarch = get_frame_arch (frame); |
f636b87d AF |
294 | CORE_ADDR real_stop_pc; |
295 | CORE_ADDR method_stop_pc; | |
296 | ||
d80b854b | 297 | real_stop_pc = gdbarch_skip_trampoline_code (gdbarch, frame, stop_pc); |
f636b87d AF |
298 | |
299 | if (real_stop_pc != 0) | |
300 | find_objc_msgcall (real_stop_pc, &method_stop_pc); | |
301 | else | |
302 | find_objc_msgcall (stop_pc, &method_stop_pc); | |
303 | ||
304 | if (method_stop_pc) | |
305 | { | |
e76f05fa | 306 | real_stop_pc = gdbarch_skip_trampoline_code |
d80b854b | 307 | (gdbarch, frame, method_stop_pc); |
f636b87d AF |
308 | if (real_stop_pc == 0) |
309 | real_stop_pc = method_stop_pc; | |
310 | } | |
311 | ||
312 | return real_stop_pc; | |
313 | } | |
314 | ||
b81654f1 MS |
315 | |
316 | /* Table mapping opcodes into strings for printing operators | |
317 | and precedences of the operators. */ | |
318 | ||
319 | static const struct op_print objc_op_print_tab[] = | |
320 | { | |
321 | {",", BINOP_COMMA, PREC_COMMA, 0}, | |
322 | {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, | |
323 | {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, | |
324 | {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, | |
325 | {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0}, | |
326 | {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0}, | |
327 | {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0}, | |
328 | {"==", BINOP_EQUAL, PREC_EQUAL, 0}, | |
329 | {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0}, | |
330 | {"<=", BINOP_LEQ, PREC_ORDER, 0}, | |
331 | {">=", BINOP_GEQ, PREC_ORDER, 0}, | |
332 | {">", BINOP_GTR, PREC_ORDER, 0}, | |
333 | {"<", BINOP_LESS, PREC_ORDER, 0}, | |
334 | {">>", BINOP_RSH, PREC_SHIFT, 0}, | |
335 | {"<<", BINOP_LSH, PREC_SHIFT, 0}, | |
336 | {"+", BINOP_ADD, PREC_ADD, 0}, | |
337 | {"-", BINOP_SUB, PREC_ADD, 0}, | |
338 | {"*", BINOP_MUL, PREC_MUL, 0}, | |
339 | {"/", BINOP_DIV, PREC_MUL, 0}, | |
340 | {"%", BINOP_REM, PREC_MUL, 0}, | |
341 | {"@", BINOP_REPEAT, PREC_REPEAT, 0}, | |
342 | {"-", UNOP_NEG, PREC_PREFIX, 0}, | |
343 | {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, | |
344 | {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0}, | |
345 | {"*", UNOP_IND, PREC_PREFIX, 0}, | |
346 | {"&", UNOP_ADDR, PREC_PREFIX, 0}, | |
347 | {"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0}, | |
348 | {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0}, | |
349 | {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0}, | |
e8f3fcdd | 350 | {NULL, OP_NULL, PREC_NULL, 0} |
b81654f1 MS |
351 | }; |
352 | ||
56618e20 TT |
353 | static const char *objc_extensions[] = |
354 | { | |
355 | ".m", NULL | |
356 | }; | |
357 | ||
0874fd07 AB |
358 | /* Constant data representing the Objective-C language. */ |
359 | ||
360 | extern const struct language_data objc_language_data = | |
361 | { | |
d2e6263c | 362 | "objective-c", /* Language name */ |
6abde28f | 363 | "Objective-C", |
b81654f1 | 364 | language_objc, |
b81654f1 | 365 | range_check_off, |
b81654f1 | 366 | case_sensitive_on, |
7ca2d3a3 | 367 | array_row_major, |
9a044a89 | 368 | macro_expansion_c, |
56618e20 | 369 | objc_extensions, |
5f9769d1 | 370 | &exp_descriptor_standard, |
f2e8016f | 371 | c_parse, |
e85c3284 | 372 | null_post_parser, |
8a808554 TT |
373 | c_printchar, /* Print a character constant */ |
374 | c_printstr, /* Function to print string constant */ | |
375 | c_emit_char, | |
5c6ce71d | 376 | c_print_typedef, /* Print a typedef using appropriate syntax */ |
62182190 | 377 | c_value_print_inner, /* la_value_print_inner */ |
b81654f1 | 378 | c_value_print, /* Print a top-level value */ |
f636b87d | 379 | objc_skip_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 380 | "self", /* name_of_this */ |
59cc4834 | 381 | false, /* la_store_sym_names_in_linkage_form_p */ |
5f9a71c3 | 382 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
0df8b418 MS |
383 | NULL, /* Language specific |
384 | class_name_from_physname */ | |
d2e6263c MS |
385 | objc_op_print_tab, /* Expression operators for printing */ |
386 | 1, /* C-style arrays */ | |
b81654f1 | 387 | 0, /* String lower bound */ |
6084f43a | 388 | default_word_break_characters, |
eb3ff9a5 | 389 | default_collect_symbol_completion_matches, |
43cc5389 | 390 | c_watch_location_expression, |
b5ec771e | 391 | NULL, /* la_get_symbol_name_matcher */ |
a53b64ea | 392 | &default_varobj_ops, |
bb2ec1b3 | 393 | NULL, |
4be290b2 | 394 | c_is_string_type_p, |
721b08c6 | 395 | "{...}" /* la_struct_too_deep_ellipsis */ |
b81654f1 MS |
396 | }; |
397 | ||
0874fd07 AB |
398 | /* Class representing the Objective-C language. */ |
399 | ||
400 | class objc_language : public language_defn | |
401 | { | |
402 | public: | |
403 | objc_language () | |
404 | : language_defn (language_objc, objc_language_data) | |
405 | { /* Nothing. */ } | |
1fb314aa AB |
406 | |
407 | /* See language.h. */ | |
408 | void language_arch_info (struct gdbarch *gdbarch, | |
409 | struct language_arch_info *lai) const override | |
410 | { | |
411 | c_language_arch_info (gdbarch, lai); | |
412 | } | |
6f827019 AB |
413 | |
414 | /* See language.h. */ | |
415 | bool sniff_from_mangled_name (const char *mangled, | |
416 | char **demangled) const override | |
417 | { | |
418 | *demangled = objc_demangle (mangled, 0); | |
419 | return *demangled != NULL; | |
420 | } | |
fbfb0a46 AB |
421 | |
422 | /* See language.h. */ | |
423 | ||
0a50df5d AB |
424 | char *demangle (const char *mangled, int options) const override |
425 | { | |
426 | return objc_demangle (mangled, options); | |
427 | } | |
428 | ||
429 | /* See language.h. */ | |
430 | ||
fbfb0a46 AB |
431 | void print_type (struct type *type, const char *varstring, |
432 | struct ui_file *stream, int show, int level, | |
433 | const struct type_print_options *flags) const override | |
434 | { | |
435 | c_print_type (type, varstring, stream, show, level, flags); | |
436 | } | |
0874fd07 AB |
437 | }; |
438 | ||
439 | /* Single instance of the class representing the Objective-C language. */ | |
440 | ||
441 | static objc_language objc_language_defn; | |
442 | ||
b81654f1 MS |
443 | /* |
444 | * ObjC: | |
0df8b418 | 445 | * Following functions help construct Objective-C message calls. |
b81654f1 MS |
446 | */ |
447 | ||
d2e6263c | 448 | struct selname /* For parsing Objective-C. */ |
b81654f1 MS |
449 | { |
450 | struct selname *next; | |
451 | char *msglist_sel; | |
452 | int msglist_len; | |
453 | }; | |
454 | ||
455 | static int msglist_len; | |
456 | static struct selname *selname_chain; | |
457 | static char *msglist_sel; | |
458 | ||
459 | void | |
460 | start_msglist(void) | |
461 | { | |
8d749320 | 462 | struct selname *newobj = XNEW (struct selname); |
b81654f1 | 463 | |
fe978cb0 PA |
464 | newobj->next = selname_chain; |
465 | newobj->msglist_len = msglist_len; | |
466 | newobj->msglist_sel = msglist_sel; | |
b81654f1 MS |
467 | msglist_len = 0; |
468 | msglist_sel = (char *)xmalloc(1); | |
469 | *msglist_sel = 0; | |
fe978cb0 | 470 | selname_chain = newobj; |
b81654f1 MS |
471 | } |
472 | ||
473 | void | |
474 | add_msglist(struct stoken *str, int addcolon) | |
475 | { | |
d7561cbb KS |
476 | char *s; |
477 | const char *p; | |
b81654f1 MS |
478 | int len, plen; |
479 | ||
5cc80db3 MS |
480 | if (str == 0) /* Unnamed arg, or... */ |
481 | { | |
482 | if (addcolon == 0) /* variable number of args. */ | |
483 | { | |
484 | msglist_len++; | |
485 | return; | |
486 | } | |
487 | p = ""; | |
488 | plen = 0; | |
489 | } | |
490 | else | |
491 | { | |
492 | p = str->ptr; | |
493 | plen = str->length; | |
b81654f1 | 494 | } |
b81654f1 MS |
495 | len = plen + strlen(msglist_sel) + 2; |
496 | s = (char *)xmalloc(len); | |
497 | strcpy(s, msglist_sel); | |
498 | strncat(s, p, plen); | |
7248f48e | 499 | xfree(msglist_sel); |
b81654f1 | 500 | msglist_sel = s; |
5cc80db3 MS |
501 | if (addcolon) |
502 | { | |
503 | s[len-2] = ':'; | |
504 | s[len-1] = 0; | |
505 | msglist_len++; | |
506 | } | |
507 | else | |
b81654f1 MS |
508 | s[len-2] = '\0'; |
509 | } | |
510 | ||
511 | int | |
410a0ff2 | 512 | end_msglist (struct parser_state *ps) |
b81654f1 | 513 | { |
f86f5ca3 PH |
514 | int val = msglist_len; |
515 | struct selname *sel = selname_chain; | |
516 | char *p = msglist_sel; | |
c253954e | 517 | CORE_ADDR selid; |
b81654f1 MS |
518 | |
519 | selname_chain = sel->next; | |
520 | msglist_len = sel->msglist_len; | |
521 | msglist_sel = sel->msglist_sel; | |
fa9f5be6 | 522 | selid = lookup_child_selector (ps->gdbarch (), p); |
b81654f1 | 523 | if (!selid) |
8a3fe4f8 | 524 | error (_("Can't find selector \"%s\""), p); |
410a0ff2 | 525 | write_exp_elt_longcst (ps, selid); |
7248f48e | 526 | xfree(p); |
410a0ff2 | 527 | write_exp_elt_longcst (ps, val); /* Number of args */ |
7248f48e | 528 | xfree(sel); |
b81654f1 MS |
529 | |
530 | return val; | |
531 | } | |
532 | ||
533 | /* | |
0d5cff50 | 534 | * Function: specialcmp (const char *a, const char *b) |
b81654f1 MS |
535 | * |
536 | * Special strcmp: treats ']' and ' ' as end-of-string. | |
d2e6263c | 537 | * Used for qsorting lists of objc methods (either by class or selector). |
b81654f1 MS |
538 | */ |
539 | ||
b9362cc7 | 540 | static int |
0d5cff50 | 541 | specialcmp (const char *a, const char *b) |
b81654f1 MS |
542 | { |
543 | while (*a && *a != ' ' && *a != ']' && *b && *b != ' ' && *b != ']') | |
544 | { | |
545 | if (*a != *b) | |
546 | return *a - *b; | |
547 | a++, b++; | |
548 | } | |
549 | if (*a && *a != ' ' && *a != ']') | |
0df8b418 | 550 | return 1; /* a is longer therefore greater. */ |
b81654f1 | 551 | if (*b && *b != ' ' && *b != ']') |
0df8b418 MS |
552 | return -1; /* a is shorter therefore lesser. */ |
553 | return 0; /* a and b are identical. */ | |
b81654f1 MS |
554 | } |
555 | ||
556 | /* | |
36e53c63 | 557 | * Function: compare_selectors (const void *, const void *) |
b81654f1 | 558 | * |
d2e6263c MS |
559 | * Comparison function for use with qsort. Arguments are symbols or |
560 | * msymbols Compares selector part of objc method name alphabetically. | |
b81654f1 MS |
561 | */ |
562 | ||
563 | static int | |
36e53c63 | 564 | compare_selectors (const void *a, const void *b) |
b81654f1 | 565 | { |
0d5cff50 | 566 | const char *aname, *bname; |
b81654f1 | 567 | |
987012b8 CB |
568 | aname = (*(struct symbol **) a)->print_name (); |
569 | bname = (*(struct symbol **) b)->print_name (); | |
7248f48e | 570 | if (aname == NULL || bname == NULL) |
8a3fe4f8 | 571 | error (_("internal: compare_selectors(1)")); |
b81654f1 | 572 | |
7248f48e AF |
573 | aname = strchr(aname, ' '); |
574 | bname = strchr(bname, ' '); | |
575 | if (aname == NULL || bname == NULL) | |
8a3fe4f8 | 576 | error (_("internal: compare_selectors(2)")); |
b81654f1 MS |
577 | |
578 | return specialcmp (aname+1, bname+1); | |
579 | } | |
580 | ||
581 | /* | |
582 | * Function: selectors_info (regexp, from_tty) | |
583 | * | |
d2e6263c MS |
584 | * Implements the "Info selectors" command. Takes an optional regexp |
585 | * arg. Lists all objective c selectors that match the regexp. Works | |
586 | * by grepping thru all symbols for objective c methods. Output list | |
587 | * is sorted and uniqued. | |
b81654f1 MS |
588 | */ |
589 | ||
590 | static void | |
1d12d88f | 591 | info_selectors_command (const char *regexp, int from_tty) |
b81654f1 | 592 | { |
0d5cff50 | 593 | const char *name; |
b81654f1 MS |
594 | char *val; |
595 | int matches = 0; | |
596 | int maxlen = 0; | |
597 | int ix; | |
598 | char myregexp[2048]; | |
599 | char asel[256]; | |
600 | struct symbol **sym_arr; | |
601 | int plusminus = 0; | |
602 | ||
603 | if (regexp == NULL) | |
d2e6263c | 604 | strcpy(myregexp, ".*]"); /* Null input, match all objc methods. */ |
b81654f1 MS |
605 | else |
606 | { | |
d2e6263c MS |
607 | if (*regexp == '+' || *regexp == '-') |
608 | { /* User wants only class methods or only instance methods. */ | |
b81654f1 MS |
609 | plusminus = *regexp++; |
610 | while (*regexp == ' ' || *regexp == '\t') | |
611 | regexp++; | |
612 | } | |
613 | if (*regexp == '\0') | |
614 | strcpy(myregexp, ".*]"); | |
615 | else | |
616 | { | |
a9dc8dcc | 617 | /* Allow a few extra bytes because of the strcat below. */ |
28288541 | 618 | if (sizeof (myregexp) < strlen (regexp) + 4) |
20937029 JK |
619 | error (_("Regexp is too long: %s"), regexp); |
620 | strcpy(myregexp, regexp); | |
b81654f1 MS |
621 | if (myregexp[strlen(myregexp) - 1] == '$') /* end of selector */ |
622 | myregexp[strlen(myregexp) - 1] = ']'; /* end of method name */ | |
623 | else | |
624 | strcat(myregexp, ".*]"); | |
625 | } | |
626 | } | |
627 | ||
628 | if (regexp != NULL) | |
5e488a7b AC |
629 | { |
630 | val = re_comp (myregexp); | |
631 | if (val != 0) | |
8a3fe4f8 | 632 | error (_("Invalid regexp (%s): %s"), val, regexp); |
5e488a7b | 633 | } |
b81654f1 | 634 | |
d2e6263c | 635 | /* First time thru is JUST to get max length and count. */ |
2030c079 | 636 | for (objfile *objfile : current_program_space->objfiles ()) |
b81654f1 | 637 | { |
7932255d | 638 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
b81654f1 | 639 | { |
5325b9bf | 640 | QUIT; |
c9d95fa3 | 641 | name = msymbol->natural_name (); |
5325b9bf TT |
642 | if (name |
643 | && (name[0] == '-' || name[0] == '+') | |
644 | && name[1] == '[') /* Got a method name. */ | |
50412521 | 645 | { |
5325b9bf TT |
646 | /* Filter for class/instance methods. */ |
647 | if (plusminus && name[0] != plusminus) | |
648 | continue; | |
649 | /* Find selector part. */ | |
650 | name = (char *) strchr (name+2, ' '); | |
651 | if (name == NULL) | |
652 | { | |
653 | complaint (_("Bad method name '%s'"), | |
c9d95fa3 | 654 | msymbol->natural_name ()); |
5325b9bf TT |
655 | continue; |
656 | } | |
657 | if (regexp == NULL || re_exec(++name) != 0) | |
658 | { | |
659 | const char *mystart = name; | |
660 | const char *myend = strchr (mystart, ']'); | |
b81654f1 | 661 | |
5325b9bf TT |
662 | if (myend && (myend - mystart > maxlen)) |
663 | maxlen = myend - mystart; /* Get longest selector. */ | |
664 | matches++; | |
665 | } | |
b81654f1 MS |
666 | } |
667 | } | |
668 | } | |
669 | if (matches) | |
670 | { | |
a3f17187 | 671 | printf_filtered (_("Selectors matching \"%s\":\n\n"), |
b81654f1 MS |
672 | regexp ? regexp : "*"); |
673 | ||
8d749320 | 674 | sym_arr = XALLOCAVEC (struct symbol *, matches); |
b81654f1 | 675 | matches = 0; |
2030c079 | 676 | for (objfile *objfile : current_program_space->objfiles ()) |
b81654f1 | 677 | { |
7932255d | 678 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
b81654f1 | 679 | { |
5325b9bf | 680 | QUIT; |
c9d95fa3 | 681 | name = msymbol->natural_name (); |
5325b9bf TT |
682 | if (name && |
683 | (name[0] == '-' || name[0] == '+') && | |
684 | name[1] == '[') /* Got a method name. */ | |
685 | { | |
686 | /* Filter for class/instance methods. */ | |
687 | if (plusminus && name[0] != plusminus) | |
688 | continue; | |
689 | /* Find selector part. */ | |
690 | name = (char *) strchr(name+2, ' '); | |
691 | if (regexp == NULL || re_exec(++name) != 0) | |
692 | sym_arr[matches++] = (struct symbol *) msymbol; | |
693 | } | |
b81654f1 MS |
694 | } |
695 | } | |
696 | ||
697 | qsort (sym_arr, matches, sizeof (struct minimal_symbol *), | |
698 | compare_selectors); | |
d2e6263c MS |
699 | /* Prevent compare on first iteration. */ |
700 | asel[0] = 0; | |
701 | for (ix = 0; ix < matches; ix++) /* Now do the output. */ | |
b81654f1 MS |
702 | { |
703 | char *p = asel; | |
704 | ||
705 | QUIT; | |
987012b8 | 706 | name = sym_arr[ix]->natural_name (); |
b81654f1 MS |
707 | name = strchr (name, ' ') + 1; |
708 | if (p[0] && specialcmp(name, p) == 0) | |
d2e6263c | 709 | continue; /* Seen this one already (not unique). */ |
b81654f1 | 710 | |
d2e6263c MS |
711 | /* Copy selector part. */ |
712 | while (*name && *name != ']') | |
b81654f1 MS |
713 | *p++ = *name++; |
714 | *p++ = '\0'; | |
d2e6263c MS |
715 | /* Print in columns. */ |
716 | puts_filtered_tabular(asel, maxlen + 1, 0); | |
b81654f1 MS |
717 | } |
718 | begin_line(); | |
719 | } | |
720 | else | |
0df8b418 MS |
721 | printf_filtered (_("No selectors matching \"%s\"\n"), |
722 | regexp ? regexp : "*"); | |
b81654f1 MS |
723 | } |
724 | ||
725 | /* | |
36e53c63 | 726 | * Function: compare_classes (const void *, const void *) |
b81654f1 | 727 | * |
d2e6263c MS |
728 | * Comparison function for use with qsort. Arguments are symbols or |
729 | * msymbols Compares class part of objc method name alphabetically. | |
b81654f1 MS |
730 | */ |
731 | ||
732 | static int | |
36e53c63 | 733 | compare_classes (const void *a, const void *b) |
b81654f1 | 734 | { |
0d5cff50 | 735 | const char *aname, *bname; |
b81654f1 | 736 | |
987012b8 CB |
737 | aname = (*(struct symbol **) a)->print_name (); |
738 | bname = (*(struct symbol **) b)->print_name (); | |
7248f48e | 739 | if (aname == NULL || bname == NULL) |
8a3fe4f8 | 740 | error (_("internal: compare_classes(1)")); |
b81654f1 MS |
741 | |
742 | return specialcmp (aname+1, bname+1); | |
743 | } | |
744 | ||
745 | /* | |
746 | * Function: classes_info(regexp, from_tty) | |
747 | * | |
748 | * Implements the "info classes" command for objective c classes. | |
749 | * Lists all objective c classes that match the optional regexp. | |
d2e6263c MS |
750 | * Works by grepping thru the list of objective c methods. List will |
751 | * be sorted and uniqued (since one class may have many methods). | |
752 | * BUGS: will not list a class that has no methods. | |
b81654f1 MS |
753 | */ |
754 | ||
755 | static void | |
1d12d88f | 756 | info_classes_command (const char *regexp, int from_tty) |
b81654f1 | 757 | { |
0d5cff50 | 758 | const char *name; |
b81654f1 MS |
759 | char *val; |
760 | int matches = 0; | |
761 | int maxlen = 0; | |
762 | int ix; | |
763 | char myregexp[2048]; | |
764 | char aclass[256]; | |
765 | struct symbol **sym_arr; | |
766 | ||
767 | if (regexp == NULL) | |
d2e6263c | 768 | strcpy(myregexp, ".* "); /* Null input: match all objc classes. */ |
b81654f1 MS |
769 | else |
770 | { | |
a9dc8dcc | 771 | /* Allow a few extra bytes because of the strcat below. */ |
28288541 MS |
772 | if (sizeof (myregexp) < strlen (regexp) + 4) |
773 | error (_("Regexp is too long: %s"), regexp); | |
b81654f1 MS |
774 | strcpy(myregexp, regexp); |
775 | if (myregexp[strlen(myregexp) - 1] == '$') | |
d2e6263c | 776 | /* In the method name, the end of the class name is marked by ' '. */ |
b81654f1 MS |
777 | myregexp[strlen(myregexp) - 1] = ' '; |
778 | else | |
779 | strcat(myregexp, ".* "); | |
780 | } | |
781 | ||
782 | if (regexp != NULL) | |
5e488a7b AC |
783 | { |
784 | val = re_comp (myregexp); | |
785 | if (val != 0) | |
8a3fe4f8 | 786 | error (_("Invalid regexp (%s): %s"), val, regexp); |
5e488a7b | 787 | } |
b81654f1 | 788 | |
d2e6263c | 789 | /* First time thru is JUST to get max length and count. */ |
2030c079 | 790 | for (objfile *objfile : current_program_space->objfiles ()) |
b81654f1 | 791 | { |
7932255d | 792 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
793 | { |
794 | QUIT; | |
c9d95fa3 | 795 | name = msymbol->natural_name (); |
5325b9bf TT |
796 | if (name && |
797 | (name[0] == '-' || name[0] == '+') && | |
798 | name[1] == '[') /* Got a method name. */ | |
799 | if (regexp == NULL || re_exec(name+2) != 0) | |
800 | { | |
801 | /* Compute length of classname part. */ | |
802 | const char *mystart = name + 2; | |
803 | const char *myend = strchr (mystart, ' '); | |
b81654f1 | 804 | |
5325b9bf TT |
805 | if (myend && (myend - mystart > maxlen)) |
806 | maxlen = myend - mystart; | |
807 | matches++; | |
808 | } | |
809 | } | |
b81654f1 MS |
810 | } |
811 | if (matches) | |
812 | { | |
a3f17187 | 813 | printf_filtered (_("Classes matching \"%s\":\n\n"), |
b81654f1 | 814 | regexp ? regexp : "*"); |
8d749320 | 815 | sym_arr = XALLOCAVEC (struct symbol *, matches); |
b81654f1 | 816 | matches = 0; |
2030c079 | 817 | for (objfile *objfile : current_program_space->objfiles ()) |
b81654f1 | 818 | { |
7932255d | 819 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
820 | { |
821 | QUIT; | |
c9d95fa3 | 822 | name = msymbol->natural_name (); |
5325b9bf TT |
823 | if (name && |
824 | (name[0] == '-' || name[0] == '+') && | |
825 | name[1] == '[') /* Got a method name. */ | |
826 | if (regexp == NULL || re_exec(name+2) != 0) | |
827 | sym_arr[matches++] = (struct symbol *) msymbol; | |
828 | } | |
b81654f1 MS |
829 | } |
830 | ||
831 | qsort (sym_arr, matches, sizeof (struct minimal_symbol *), | |
832 | compare_classes); | |
d2e6263c MS |
833 | /* Prevent compare on first iteration. */ |
834 | aclass[0] = 0; | |
835 | for (ix = 0; ix < matches; ix++) /* Now do the output. */ | |
b81654f1 MS |
836 | { |
837 | char *p = aclass; | |
838 | ||
839 | QUIT; | |
987012b8 | 840 | name = sym_arr[ix]->natural_name (); |
b81654f1 MS |
841 | name += 2; |
842 | if (p[0] && specialcmp(name, p) == 0) | |
d2e6263c | 843 | continue; /* Seen this one already (not unique). */ |
b81654f1 | 844 | |
d2e6263c MS |
845 | /* Copy class part of method name. */ |
846 | while (*name && *name != ' ') | |
b81654f1 MS |
847 | *p++ = *name++; |
848 | *p++ = '\0'; | |
d2e6263c MS |
849 | /* Print in columns. */ |
850 | puts_filtered_tabular(aclass, maxlen + 1, 0); | |
b81654f1 MS |
851 | } |
852 | begin_line(); | |
853 | } | |
854 | else | |
a3f17187 | 855 | printf_filtered (_("No classes matching \"%s\"\n"), regexp ? regexp : "*"); |
b81654f1 MS |
856 | } |
857 | ||
f8eba3c6 | 858 | static char * |
b81654f1 MS |
859 | parse_selector (char *method, char **selector) |
860 | { | |
861 | char *s1 = NULL; | |
862 | char *s2 = NULL; | |
863 | int found_quote = 0; | |
864 | ||
865 | char *nselector = NULL; | |
866 | ||
e8f3fcdd | 867 | gdb_assert (selector != NULL); |
b81654f1 MS |
868 | |
869 | s1 = method; | |
870 | ||
529480d0 | 871 | s1 = skip_spaces (s1); |
b81654f1 MS |
872 | if (*s1 == '\'') |
873 | { | |
874 | found_quote = 1; | |
875 | s1++; | |
876 | } | |
529480d0 | 877 | s1 = skip_spaces (s1); |
b81654f1 MS |
878 | |
879 | nselector = s1; | |
880 | s2 = s1; | |
881 | ||
5cc80db3 MS |
882 | for (;;) |
883 | { | |
884 | if (isalnum (*s2) || (*s2 == '_') || (*s2 == ':')) | |
885 | *s1++ = *s2; | |
886 | else if (isspace (*s2)) | |
887 | ; | |
888 | else if ((*s2 == '\0') || (*s2 == '\'')) | |
889 | break; | |
890 | else | |
891 | return NULL; | |
892 | s2++; | |
893 | } | |
b81654f1 MS |
894 | *s1++ = '\0'; |
895 | ||
529480d0 | 896 | s2 = skip_spaces (s2); |
b81654f1 MS |
897 | if (found_quote) |
898 | { | |
899 | if (*s2 == '\'') | |
900 | s2++; | |
529480d0 | 901 | s2 = skip_spaces (s2); |
b81654f1 MS |
902 | } |
903 | ||
904 | if (selector != NULL) | |
905 | *selector = nselector; | |
906 | ||
907 | return s2; | |
908 | } | |
909 | ||
f8eba3c6 | 910 | static char * |
fe978cb0 | 911 | parse_method (char *method, char *type, char **theclass, |
d2e6263c | 912 | char **category, char **selector) |
b81654f1 MS |
913 | { |
914 | char *s1 = NULL; | |
915 | char *s2 = NULL; | |
916 | int found_quote = 0; | |
917 | ||
918 | char ntype = '\0'; | |
919 | char *nclass = NULL; | |
920 | char *ncategory = NULL; | |
921 | char *nselector = NULL; | |
922 | ||
e8f3fcdd | 923 | gdb_assert (type != NULL); |
fe978cb0 | 924 | gdb_assert (theclass != NULL); |
e8f3fcdd AC |
925 | gdb_assert (category != NULL); |
926 | gdb_assert (selector != NULL); | |
b81654f1 MS |
927 | |
928 | s1 = method; | |
929 | ||
529480d0 | 930 | s1 = skip_spaces (s1); |
b81654f1 MS |
931 | if (*s1 == '\'') |
932 | { | |
933 | found_quote = 1; | |
934 | s1++; | |
935 | } | |
529480d0 | 936 | s1 = skip_spaces (s1); |
b81654f1 MS |
937 | |
938 | if ((s1[0] == '+') || (s1[0] == '-')) | |
939 | ntype = *s1++; | |
940 | ||
529480d0 | 941 | s1 = skip_spaces (s1); |
b81654f1 MS |
942 | |
943 | if (*s1 != '[') | |
944 | return NULL; | |
945 | s1++; | |
946 | ||
947 | nclass = s1; | |
948 | while (isalnum (*s1) || (*s1 == '_')) | |
949 | s1++; | |
950 | ||
951 | s2 = s1; | |
529480d0 | 952 | s2 = skip_spaces (s2); |
b81654f1 MS |
953 | |
954 | if (*s2 == '(') | |
955 | { | |
956 | s2++; | |
529480d0 | 957 | s2 = skip_spaces (s2); |
b81654f1 MS |
958 | ncategory = s2; |
959 | while (isalnum (*s2) || (*s2 == '_')) | |
960 | s2++; | |
961 | *s2++ = '\0'; | |
962 | } | |
963 | ||
d2e6263c | 964 | /* Truncate the class name now that we're not using the open paren. */ |
b81654f1 MS |
965 | *s1++ = '\0'; |
966 | ||
967 | nselector = s2; | |
968 | s1 = s2; | |
969 | ||
5cc80db3 MS |
970 | for (;;) |
971 | { | |
972 | if (isalnum (*s2) || (*s2 == '_') || (*s2 == ':')) | |
973 | *s1++ = *s2; | |
974 | else if (isspace (*s2)) | |
975 | ; | |
976 | else if (*s2 == ']') | |
977 | break; | |
978 | else | |
979 | return NULL; | |
980 | s2++; | |
981 | } | |
b81654f1 MS |
982 | *s1++ = '\0'; |
983 | s2++; | |
984 | ||
529480d0 | 985 | s2 = skip_spaces (s2); |
b81654f1 MS |
986 | if (found_quote) |
987 | { | |
988 | if (*s2 != '\'') | |
989 | return NULL; | |
990 | s2++; | |
529480d0 | 991 | s2 = skip_spaces (s2); |
b81654f1 MS |
992 | } |
993 | ||
994 | if (type != NULL) | |
995 | *type = ntype; | |
fe978cb0 PA |
996 | if (theclass != NULL) |
997 | *theclass = nclass; | |
b81654f1 MS |
998 | if (category != NULL) |
999 | *category = ncategory; | |
1000 | if (selector != NULL) | |
1001 | *selector = nselector; | |
1002 | ||
1003 | return s2; | |
1004 | } | |
1005 | ||
2f9a90b4 | 1006 | static void |
fe978cb0 | 1007 | find_methods (char type, const char *theclass, const char *category, |
f8eba3c6 | 1008 | const char *selector, |
9b2f8581 | 1009 | std::vector<const char *> *symbol_names) |
b81654f1 | 1010 | { |
0d5cff50 | 1011 | const char *symname = NULL; |
b81654f1 MS |
1012 | |
1013 | char ntype = '\0'; | |
1014 | char *nclass = NULL; | |
1015 | char *ncategory = NULL; | |
1016 | char *nselector = NULL; | |
1017 | ||
b81654f1 MS |
1018 | static char *tmp = NULL; |
1019 | static unsigned int tmplen = 0; | |
1020 | ||
f8eba3c6 | 1021 | gdb_assert (symbol_names != NULL); |
b81654f1 | 1022 | |
2030c079 | 1023 | for (objfile *objfile : current_program_space->objfiles ()) |
b81654f1 | 1024 | { |
57a9e6af | 1025 | unsigned int *objc_csym; |
b81654f1 | 1026 | |
57a9e6af PP |
1027 | /* The objfile_csym variable counts the number of ObjC methods |
1028 | that this objfile defines. We save that count as a private | |
1029 | objfile data. If we have already determined that this objfile | |
1030 | provides no ObjC methods, we can skip it entirely. */ | |
b81654f1 | 1031 | |
57a9e6af | 1032 | unsigned int objfile_csym = 0; |
b81654f1 | 1033 | |
4c58e337 | 1034 | objc_csym = objc_objfile_data.get (objfile); |
57a9e6af PP |
1035 | if (objc_csym != NULL && *objc_csym == 0) |
1036 | /* There are no ObjC symbols in this objfile. Skip it entirely. */ | |
b81654f1 MS |
1037 | continue; |
1038 | ||
7932255d | 1039 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
b81654f1 | 1040 | { |
57a9e6af | 1041 | QUIT; |
b81654f1 | 1042 | |
0c4b2e63 MF |
1043 | /* Check the symbol name first as this can be done entirely without |
1044 | sending any query to the target. */ | |
c9d95fa3 | 1045 | symname = msymbol->natural_name (); |
0c4b2e63 MF |
1046 | if (symname == NULL) |
1047 | continue; | |
1048 | ||
1049 | if ((symname[0] != '-' && symname[0] != '+') || (symname[1] != '[')) | |
1050 | /* Not a method name. */ | |
1051 | continue; | |
1052 | ||
8dfd1e6d KS |
1053 | objfile_csym++; |
1054 | ||
0c4b2e63 | 1055 | /* Now that thinks are a bit sane, clean up the symname. */ |
57a9e6af PP |
1056 | while ((strlen (symname) + 1) >= tmplen) |
1057 | { | |
1058 | tmplen = (tmplen == 0) ? 1024 : tmplen * 2; | |
224c3ddb | 1059 | tmp = (char *) xrealloc (tmp, tmplen); |
57a9e6af PP |
1060 | } |
1061 | strcpy (tmp, symname); | |
b81654f1 | 1062 | |
0df8b418 MS |
1063 | if (parse_method (tmp, &ntype, &nclass, |
1064 | &ncategory, &nselector) == NULL) | |
57a9e6af | 1065 | continue; |
b81654f1 | 1066 | |
57a9e6af PP |
1067 | if ((type != '\0') && (ntype != type)) |
1068 | continue; | |
b81654f1 | 1069 | |
fe978cb0 PA |
1070 | if ((theclass != NULL) |
1071 | && ((nclass == NULL) || (strcmp (theclass, nclass) != 0))) | |
57a9e6af PP |
1072 | continue; |
1073 | ||
1074 | if ((category != NULL) && | |
1075 | ((ncategory == NULL) || (strcmp (category, ncategory) != 0))) | |
1076 | continue; | |
b81654f1 | 1077 | |
57a9e6af PP |
1078 | if ((selector != NULL) && |
1079 | ((nselector == NULL) || (strcmp (selector, nselector) != 0))) | |
1080 | continue; | |
1081 | ||
9b2f8581 | 1082 | symbol_names->push_back (symname); |
57a9e6af | 1083 | } |
f8eba3c6 | 1084 | |
57a9e6af | 1085 | if (objc_csym == NULL) |
4c58e337 | 1086 | objc_csym = objc_objfile_data.emplace (objfile, objfile_csym); |
57a9e6af PP |
1087 | else |
1088 | /* Count of ObjC methods in this objfile should be constant. */ | |
1089 | gdb_assert (*objc_csym == objfile_csym); | |
b81654f1 | 1090 | } |
f8eba3c6 | 1091 | } |
b81654f1 | 1092 | |
791b7405 | 1093 | /* Uniquify a vector of strings. */ |
f8eba3c6 TT |
1094 | |
1095 | static void | |
9b2f8581 | 1096 | uniquify_strings (std::vector<const char *> *strings) |
f8eba3c6 | 1097 | { |
9b2f8581 | 1098 | if (strings->empty ()) |
ee7615e1 AA |
1099 | return; |
1100 | ||
9b2f8581 TT |
1101 | std::sort (strings->begin (), strings->end (), compare_cstrings); |
1102 | strings->erase (std::unique (strings->begin (), strings->end (), streq), | |
1103 | strings->end ()); | |
b81654f1 MS |
1104 | } |
1105 | ||
f8eba3c6 | 1106 | /* |
d7561cbb | 1107 | * Function: find_imps (const char *selector, struct symbol **sym_arr) |
f8eba3c6 TT |
1108 | * |
1109 | * Input: a string representing a selector | |
1110 | * a pointer to an array of symbol pointers | |
1111 | * possibly a pointer to a symbol found by the caller. | |
1112 | * | |
1113 | * Output: number of methods that implement that selector. Side | |
1114 | * effects: The array of symbol pointers is filled with matching syms. | |
1115 | * | |
1116 | * By analogy with function "find_methods" (symtab.c), builds a list | |
1117 | * of symbols matching the ambiguous input, so that "decode_line_2" | |
1118 | * (symtab.c) can list them and ask the user to choose one or more. | |
1119 | * In this case the matches are objective c methods | |
1120 | * ("implementations") matching an objective c selector. | |
1121 | * | |
1122 | * Note that it is possible for a normal (c-style) function to have | |
1123 | * the same name as an objective c selector. To prevent the selector | |
1124 | * from eclipsing the function, we allow the caller (decode_line_1) to | |
1125 | * search for such a function first, and if it finds one, pass it in | |
1126 | * to us. We will then integrate it into the list. We also search | |
1127 | * for one here, among the minsyms. | |
1128 | * | |
1129 | * NOTE: if NUM_DEBUGGABLE is non-zero, the sym_arr will be divided | |
1130 | * into two parts: debuggable (struct symbol) syms, and | |
1131 | * non_debuggable (struct minimal_symbol) syms. The debuggable | |
1132 | * ones will come first, before NUM_DEBUGGABLE (which will thus | |
1133 | * be the index of the first non-debuggable one). | |
1134 | */ | |
1135 | ||
d7561cbb | 1136 | const char * |
9b2f8581 | 1137 | find_imps (const char *method, std::vector<const char *> *symbol_names) |
b81654f1 MS |
1138 | { |
1139 | char type = '\0'; | |
fe978cb0 | 1140 | char *theclass = NULL; |
b81654f1 MS |
1141 | char *category = NULL; |
1142 | char *selector = NULL; | |
1143 | ||
b81654f1 MS |
1144 | char *buf = NULL; |
1145 | char *tmp = NULL; | |
1146 | ||
f8eba3c6 | 1147 | int selector_case = 0; |
b81654f1 | 1148 | |
f8eba3c6 | 1149 | gdb_assert (symbol_names != NULL); |
b81654f1 MS |
1150 | |
1151 | buf = (char *) alloca (strlen (method) + 1); | |
1152 | strcpy (buf, method); | |
fe978cb0 | 1153 | tmp = parse_method (buf, &type, &theclass, &category, &selector); |
b81654f1 | 1154 | |
5cc80db3 MS |
1155 | if (tmp == NULL) |
1156 | { | |
5cc80db3 MS |
1157 | strcpy (buf, method); |
1158 | tmp = parse_selector (buf, &selector); | |
b81654f1 | 1159 | |
5cc80db3 MS |
1160 | if (tmp == NULL) |
1161 | return NULL; | |
1162 | ||
f8eba3c6 | 1163 | selector_case = 1; |
5cc80db3 | 1164 | } |
b81654f1 | 1165 | |
fe978cb0 | 1166 | find_methods (type, theclass, category, selector, symbol_names); |
b81654f1 | 1167 | |
f8eba3c6 TT |
1168 | /* If we hit the "selector" case, and we found some methods, then |
1169 | add the selector itself as a symbol, if it exists. */ | |
9b2f8581 | 1170 | if (selector_case && !symbol_names->empty ()) |
b81654f1 | 1171 | { |
d12307c1 PMR |
1172 | struct symbol *sym = lookup_symbol (selector, NULL, VAR_DOMAIN, |
1173 | 0).symbol; | |
f8eba3c6 TT |
1174 | |
1175 | if (sym != NULL) | |
987012b8 | 1176 | symbol_names->push_back (sym->natural_name ()); |
f8eba3c6 | 1177 | else |
b81654f1 | 1178 | { |
3b7344d5 TT |
1179 | struct bound_minimal_symbol msym |
1180 | = lookup_minimal_symbol (selector, 0, 0); | |
f8eba3c6 | 1181 | |
3b7344d5 | 1182 | if (msym.minsym != NULL) |
c9d95fa3 | 1183 | symbol_names->push_back (msym.minsym->natural_name ()); |
b81654f1 MS |
1184 | } |
1185 | } | |
1186 | ||
f8eba3c6 | 1187 | uniquify_strings (symbol_names); |
b81654f1 MS |
1188 | |
1189 | return method + (tmp - buf); | |
1190 | } | |
1191 | ||
b9362cc7 | 1192 | static void |
0b39b52e | 1193 | print_object_command (const char *args, int from_tty) |
b81654f1 MS |
1194 | { |
1195 | struct value *object, *function, *description; | |
36e53c63 | 1196 | CORE_ADDR string_addr, object_addr; |
b81654f1 | 1197 | int i = 0; |
22a44745 | 1198 | gdb_byte c = 0; |
b81654f1 MS |
1199 | |
1200 | if (!args || !*args) | |
d2e6263c MS |
1201 | error ( |
1202 | "The 'print-object' command requires an argument (an Objective-C object)"); | |
b81654f1 MS |
1203 | |
1204 | { | |
4d01a485 | 1205 | expression_up expr = parse_expression (args); |
b81654f1 MS |
1206 | int pc = 0; |
1207 | ||
4b27a620 | 1208 | object = evaluate_subexp (builtin_type (expr->gdbarch)->builtin_data_ptr, |
4d01a485 | 1209 | expr.get (), &pc, EVAL_NORMAL); |
b81654f1 MS |
1210 | } |
1211 | ||
36e53c63 AF |
1212 | /* Validate the address for sanity. */ |
1213 | object_addr = value_as_long (object); | |
1214 | read_memory (object_addr, &c, 1); | |
1215 | ||
3e3b026f | 1216 | function = find_function_in_inferior ("_NSPrintForDebugger", NULL); |
36e53c63 | 1217 | if (function == NULL) |
8a3fe4f8 | 1218 | error (_("Unable to locate _NSPrintForDebugger in child process")); |
b81654f1 | 1219 | |
e71585ff | 1220 | description = call_function_by_hand (function, NULL, object); |
b81654f1 | 1221 | |
7248f48e AF |
1222 | string_addr = value_as_long (description); |
1223 | if (string_addr == 0) | |
8a3fe4f8 | 1224 | error (_("object returns null description")); |
b81654f1 MS |
1225 | |
1226 | read_memory (string_addr + i++, &c, 1); | |
22a44745 | 1227 | if (c != 0) |
b81654f1 | 1228 | do |
d2e6263c | 1229 | { /* Read and print characters up to EOS. */ |
b81654f1 MS |
1230 | QUIT; |
1231 | printf_filtered ("%c", c); | |
1232 | read_memory (string_addr + i++, &c, 1); | |
1233 | } while (c != 0); | |
1234 | else | |
a3f17187 | 1235 | printf_filtered(_("<object returns empty description>")); |
b81654f1 MS |
1236 | printf_filtered ("\n"); |
1237 | } | |
1238 | ||
d2e6263c MS |
1239 | /* The data structure 'methcalls' is used to detect method calls (thru |
1240 | * ObjC runtime lib functions objc_msgSend, objc_msgSendSuper, etc.), | |
0df8b418 | 1241 | * and ultimately find the method being called. |
b81654f1 MS |
1242 | */ |
1243 | ||
1244 | struct objc_methcall { | |
a121b7c1 | 1245 | const char *name; |
d2e6263c | 1246 | /* Return instance method to be called. */ |
36e53c63 | 1247 | int (*stop_at) (CORE_ADDR, CORE_ADDR *); |
d2e6263c MS |
1248 | /* Start of pc range corresponding to method invocation. */ |
1249 | CORE_ADDR begin; | |
1250 | /* End of pc range corresponding to method invocation. */ | |
1251 | CORE_ADDR end; | |
b81654f1 MS |
1252 | }; |
1253 | ||
d2e6263c MS |
1254 | static int resolve_msgsend (CORE_ADDR pc, CORE_ADDR *new_pc); |
1255 | static int resolve_msgsend_stret (CORE_ADDR pc, CORE_ADDR *new_pc); | |
1256 | static int resolve_msgsend_super (CORE_ADDR pc, CORE_ADDR *new_pc); | |
1257 | static int resolve_msgsend_super_stret (CORE_ADDR pc, CORE_ADDR *new_pc); | |
b81654f1 MS |
1258 | |
1259 | static struct objc_methcall methcalls[] = { | |
1260 | { "_objc_msgSend", resolve_msgsend, 0, 0}, | |
1261 | { "_objc_msgSend_stret", resolve_msgsend_stret, 0, 0}, | |
1262 | { "_objc_msgSendSuper", resolve_msgsend_super, 0, 0}, | |
1263 | { "_objc_msgSendSuper_stret", resolve_msgsend_super_stret, 0, 0}, | |
1264 | { "_objc_getClass", NULL, 0, 0}, | |
1265 | { "_objc_getMetaClass", NULL, 0, 0} | |
1266 | }; | |
1267 | ||
1268 | #define nmethcalls (sizeof (methcalls) / sizeof (methcalls[0])) | |
1269 | ||
d2e6263c MS |
1270 | /* The following function, "find_objc_msgsend", fills in the data |
1271 | * structure "objc_msgs" by finding the addresses of each of the | |
1272 | * (currently four) functions that it holds (of which objc_msgSend is | |
1273 | * the first). This must be called each time symbols are loaded, in | |
0df8b418 | 1274 | * case the functions have moved for some reason. |
b81654f1 MS |
1275 | */ |
1276 | ||
b9362cc7 | 1277 | static void |
b81654f1 MS |
1278 | find_objc_msgsend (void) |
1279 | { | |
1280 | unsigned int i; | |
b81654f1 | 1281 | |
5cc80db3 MS |
1282 | for (i = 0; i < nmethcalls; i++) |
1283 | { | |
50e65b17 | 1284 | struct bound_minimal_symbol func; |
b81654f1 | 1285 | |
5cc80db3 | 1286 | /* Try both with and without underscore. */ |
50e65b17 TT |
1287 | func = lookup_bound_minimal_symbol (methcalls[i].name); |
1288 | if ((func.minsym == NULL) && (methcalls[i].name[0] == '_')) | |
5cc80db3 | 1289 | { |
50e65b17 | 1290 | func = lookup_bound_minimal_symbol (methcalls[i].name + 1); |
5cc80db3 | 1291 | } |
50e65b17 | 1292 | if (func.minsym == NULL) |
5cc80db3 MS |
1293 | { |
1294 | methcalls[i].begin = 0; | |
1295 | methcalls[i].end = 0; | |
1296 | continue; | |
1297 | } | |
1298 | ||
77e371c0 | 1299 | methcalls[i].begin = BMSYMBOL_VALUE_ADDRESS (func); |
50e65b17 | 1300 | methcalls[i].end = minimal_symbol_upper_bound (func); |
b81654f1 | 1301 | } |
b81654f1 MS |
1302 | } |
1303 | ||
1304 | /* find_objc_msgcall (replaces pc_off_limits) | |
1305 | * | |
d2e6263c MS |
1306 | * ALL that this function now does is to determine whether the input |
1307 | * address ("pc") is the address of one of the Objective-C message | |
b81654f1 MS |
1308 | * dispatch functions (mainly objc_msgSend or objc_msgSendSuper), and |
1309 | * if so, it returns the address of the method that will be called. | |
1310 | * | |
1311 | * The old function "pc_off_limits" used to do a lot of other things | |
d2e6263c | 1312 | * in addition, such as detecting shared library jump stubs and |
b81654f1 | 1313 | * returning the address of the shlib function that would be called. |
e76f05fa | 1314 | * That functionality has been moved into the gdbarch_skip_trampoline_code and |
d2e6263c | 1315 | * IN_SOLIB_TRAMPOLINE macros, which are resolved in the target- |
0df8b418 | 1316 | * dependent modules. |
b81654f1 MS |
1317 | */ |
1318 | ||
b9362cc7 | 1319 | static int |
36e53c63 | 1320 | find_objc_msgcall_submethod (int (*f) (CORE_ADDR, CORE_ADDR *), |
d2e6263c MS |
1321 | CORE_ADDR pc, |
1322 | CORE_ADDR *new_pc) | |
b81654f1 | 1323 | { |
a70b8144 | 1324 | try |
bf469271 PA |
1325 | { |
1326 | if (f (pc, new_pc) == 0) | |
1327 | return 1; | |
1328 | } | |
230d2906 | 1329 | catch (const gdb_exception &ex) |
bf469271 PA |
1330 | { |
1331 | exception_fprintf (gdb_stderr, ex, | |
1332 | "Unable to determine target of " | |
1333 | "Objective-C method call (ignoring):\n"); | |
1334 | } | |
bf469271 PA |
1335 | |
1336 | return 0; | |
b81654f1 MS |
1337 | } |
1338 | ||
1339 | int | |
1340 | find_objc_msgcall (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1341 | { | |
1342 | unsigned int i; | |
1343 | ||
1344 | find_objc_msgsend (); | |
5e488a7b AC |
1345 | if (new_pc != NULL) |
1346 | { | |
1347 | *new_pc = 0; | |
1348 | } | |
b81654f1 | 1349 | |
d2e6263c MS |
1350 | for (i = 0; i < nmethcalls; i++) |
1351 | if ((pc >= methcalls[i].begin) && (pc < methcalls[i].end)) | |
1352 | { | |
1353 | if (methcalls[i].stop_at != NULL) | |
1354 | return find_objc_msgcall_submethod (methcalls[i].stop_at, | |
1355 | pc, new_pc); | |
1356 | else | |
1357 | return 0; | |
b81654f1 | 1358 | } |
d2e6263c | 1359 | |
b81654f1 MS |
1360 | return 0; |
1361 | } | |
1362 | ||
6c265988 | 1363 | void _initialize_objc_language (); |
b81654f1 | 1364 | void |
6c265988 | 1365 | _initialize_objc_language () |
b81654f1 | 1366 | { |
11db9430 | 1367 | add_info ("selectors", info_selectors_command, |
1bedd215 | 1368 | _("All Objective-C selectors, or those matching REGEXP.")); |
11db9430 | 1369 | add_info ("classes", info_classes_command, |
1bedd215 | 1370 | _("All Objective-C classes, or those matching REGEXP.")); |
b81654f1 | 1371 | add_com ("print-object", class_vars, print_object_command, |
1bedd215 | 1372 | _("Ask an Objective-C object to print itself.")); |
b81654f1 MS |
1373 | add_com_alias ("po", "print-object", class_vars, 1); |
1374 | } | |
1375 | ||
b81654f1 | 1376 | static void |
e17a4113 UW |
1377 | read_objc_method (struct gdbarch *gdbarch, CORE_ADDR addr, |
1378 | struct objc_method *method) | |
b81654f1 | 1379 | { |
e17a4113 | 1380 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1381 | |
e17a4113 UW |
1382 | method->name = read_memory_unsigned_integer (addr + 0, 4, byte_order); |
1383 | method->types = read_memory_unsigned_integer (addr + 4, 4, byte_order); | |
1384 | method->imp = read_memory_unsigned_integer (addr + 8, 4, byte_order); | |
b81654f1 MS |
1385 | } |
1386 | ||
e17a4113 UW |
1387 | static unsigned long |
1388 | read_objc_methlist_nmethods (struct gdbarch *gdbarch, CORE_ADDR addr) | |
b81654f1 | 1389 | { |
e17a4113 | 1390 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1391 | |
e17a4113 | 1392 | return read_memory_unsigned_integer (addr + 4, 4, byte_order); |
b81654f1 MS |
1393 | } |
1394 | ||
1395 | static void | |
e17a4113 UW |
1396 | read_objc_methlist_method (struct gdbarch *gdbarch, CORE_ADDR addr, |
1397 | unsigned long num, struct objc_method *method) | |
b81654f1 | 1398 | { |
e17a4113 UW |
1399 | gdb_assert (num < read_objc_methlist_nmethods (gdbarch, addr)); |
1400 | read_objc_method (gdbarch, addr + 8 + (12 * num), method); | |
b81654f1 MS |
1401 | } |
1402 | ||
1403 | static void | |
e17a4113 UW |
1404 | read_objc_object (struct gdbarch *gdbarch, CORE_ADDR addr, |
1405 | struct objc_object *object) | |
b81654f1 | 1406 | { |
e17a4113 | 1407 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1408 | |
e17a4113 | 1409 | object->isa = read_memory_unsigned_integer (addr, 4, byte_order); |
b81654f1 MS |
1410 | } |
1411 | ||
1412 | static void | |
e17a4113 UW |
1413 | read_objc_super (struct gdbarch *gdbarch, CORE_ADDR addr, |
1414 | struct objc_super *super) | |
b81654f1 | 1415 | { |
e17a4113 | 1416 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1417 | |
e17a4113 | 1418 | super->receiver = read_memory_unsigned_integer (addr, 4, byte_order); |
fe978cb0 | 1419 | super->theclass = read_memory_unsigned_integer (addr + 4, 4, byte_order); |
b81654f1 MS |
1420 | }; |
1421 | ||
1422 | static void | |
e17a4113 | 1423 | read_objc_class (struct gdbarch *gdbarch, CORE_ADDR addr, |
fe978cb0 | 1424 | struct objc_class *theclass) |
b81654f1 | 1425 | { |
e17a4113 | 1426 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1427 | |
fe978cb0 PA |
1428 | theclass->isa = read_memory_unsigned_integer (addr, 4, byte_order); |
1429 | theclass->super_class = read_memory_unsigned_integer (addr + 4, 4, byte_order); | |
1430 | theclass->name = read_memory_unsigned_integer (addr + 8, 4, byte_order); | |
1431 | theclass->version = read_memory_unsigned_integer (addr + 12, 4, byte_order); | |
1432 | theclass->info = read_memory_unsigned_integer (addr + 16, 4, byte_order); | |
1433 | theclass->instance_size = read_memory_unsigned_integer (addr + 18, 4, | |
0df8b418 | 1434 | byte_order); |
fe978cb0 PA |
1435 | theclass->ivars = read_memory_unsigned_integer (addr + 24, 4, byte_order); |
1436 | theclass->methods = read_memory_unsigned_integer (addr + 28, 4, byte_order); | |
1437 | theclass->cache = read_memory_unsigned_integer (addr + 32, 4, byte_order); | |
1438 | theclass->protocols = read_memory_unsigned_integer (addr + 36, 4, byte_order); | |
b81654f1 MS |
1439 | } |
1440 | ||
b9362cc7 | 1441 | static CORE_ADDR |
e17a4113 | 1442 | find_implementation_from_class (struct gdbarch *gdbarch, |
fe978cb0 | 1443 | CORE_ADDR theclass, CORE_ADDR sel) |
b81654f1 | 1444 | { |
e17a4113 | 1445 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
fe978cb0 | 1446 | CORE_ADDR subclass = theclass; |
b81654f1 | 1447 | |
d2e6263c MS |
1448 | while (subclass != 0) |
1449 | { | |
b81654f1 | 1450 | |
d2e6263c MS |
1451 | struct objc_class class_str; |
1452 | unsigned mlistnum = 0; | |
b81654f1 | 1453 | |
e17a4113 | 1454 | read_objc_class (gdbarch, subclass, &class_str); |
b81654f1 | 1455 | |
d2e6263c MS |
1456 | for (;;) |
1457 | { | |
1458 | CORE_ADDR mlist; | |
1459 | unsigned long nmethods; | |
1460 | unsigned long i; | |
b81654f1 | 1461 | |
d2e6263c | 1462 | mlist = read_memory_unsigned_integer (class_str.methods + |
e17a4113 UW |
1463 | (4 * mlistnum), |
1464 | 4, byte_order); | |
d2e6263c MS |
1465 | if (mlist == 0) |
1466 | break; | |
b81654f1 | 1467 | |
e17a4113 | 1468 | nmethods = read_objc_methlist_nmethods (gdbarch, mlist); |
b81654f1 | 1469 | |
d2e6263c MS |
1470 | for (i = 0; i < nmethods; i++) |
1471 | { | |
1472 | struct objc_method meth_str; | |
b81654f1 | 1473 | |
5cc80db3 | 1474 | read_objc_methlist_method (gdbarch, mlist, i, &meth_str); |
b81654f1 | 1475 | |
d2e6263c | 1476 | if (meth_str.name == sel) |
1abf022c | 1477 | /* FIXME: hppa arch was doing a pointer dereference |
0df8b418 | 1478 | here. There needs to be a better way to do that. */ |
1abf022c | 1479 | return meth_str.imp; |
d2e6263c MS |
1480 | } |
1481 | mlistnum++; | |
b81654f1 | 1482 | } |
d2e6263c | 1483 | subclass = class_str.super_class; |
b81654f1 | 1484 | } |
b81654f1 MS |
1485 | |
1486 | return 0; | |
1487 | } | |
1488 | ||
b9362cc7 | 1489 | static CORE_ADDR |
e17a4113 UW |
1490 | find_implementation (struct gdbarch *gdbarch, |
1491 | CORE_ADDR object, CORE_ADDR sel) | |
b81654f1 MS |
1492 | { |
1493 | struct objc_object ostr; | |
1494 | ||
d2e6263c MS |
1495 | if (object == 0) |
1496 | return 0; | |
e17a4113 | 1497 | read_objc_object (gdbarch, object, &ostr); |
d2e6263c MS |
1498 | if (ostr.isa == 0) |
1499 | return 0; | |
b81654f1 | 1500 | |
e17a4113 | 1501 | return find_implementation_from_class (gdbarch, ostr.isa, sel); |
b81654f1 MS |
1502 | } |
1503 | ||
1504 | static int | |
1505 | resolve_msgsend (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1506 | { | |
5ed92fa8 UW |
1507 | struct frame_info *frame = get_current_frame (); |
1508 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1509 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1510 | ||
b81654f1 MS |
1511 | CORE_ADDR object; |
1512 | CORE_ADDR sel; | |
1513 | CORE_ADDR res; | |
1514 | ||
5ed92fa8 UW |
1515 | object = gdbarch_fetch_pointer_argument (gdbarch, frame, 0, ptr_type); |
1516 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); | |
b81654f1 | 1517 | |
e17a4113 | 1518 | res = find_implementation (gdbarch, object, sel); |
d2e6263c MS |
1519 | if (new_pc != 0) |
1520 | *new_pc = res; | |
1521 | if (res == 0) | |
1522 | return 1; | |
b81654f1 MS |
1523 | return 0; |
1524 | } | |
1525 | ||
1526 | static int | |
1527 | resolve_msgsend_stret (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1528 | { | |
5ed92fa8 UW |
1529 | struct frame_info *frame = get_current_frame (); |
1530 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1531 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1532 | ||
b81654f1 MS |
1533 | CORE_ADDR object; |
1534 | CORE_ADDR sel; | |
1535 | CORE_ADDR res; | |
1536 | ||
5ed92fa8 UW |
1537 | object = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); |
1538 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 2, ptr_type); | |
b81654f1 | 1539 | |
e17a4113 | 1540 | res = find_implementation (gdbarch, object, sel); |
d2e6263c MS |
1541 | if (new_pc != 0) |
1542 | *new_pc = res; | |
1543 | if (res == 0) | |
1544 | return 1; | |
b81654f1 MS |
1545 | return 0; |
1546 | } | |
1547 | ||
1548 | static int | |
1549 | resolve_msgsend_super (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1550 | { | |
5ed92fa8 UW |
1551 | struct frame_info *frame = get_current_frame (); |
1552 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1553 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1554 | ||
b81654f1 MS |
1555 | struct objc_super sstr; |
1556 | ||
1557 | CORE_ADDR super; | |
1558 | CORE_ADDR sel; | |
1559 | CORE_ADDR res; | |
1560 | ||
5ed92fa8 UW |
1561 | super = gdbarch_fetch_pointer_argument (gdbarch, frame, 0, ptr_type); |
1562 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); | |
b81654f1 | 1563 | |
e17a4113 | 1564 | read_objc_super (gdbarch, super, &sstr); |
fe978cb0 | 1565 | if (sstr.theclass == 0) |
d2e6263c | 1566 | return 0; |
b81654f1 | 1567 | |
fe978cb0 | 1568 | res = find_implementation_from_class (gdbarch, sstr.theclass, sel); |
d2e6263c MS |
1569 | if (new_pc != 0) |
1570 | *new_pc = res; | |
1571 | if (res == 0) | |
1572 | return 1; | |
b81654f1 MS |
1573 | return 0; |
1574 | } | |
1575 | ||
1576 | static int | |
1577 | resolve_msgsend_super_stret (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1578 | { | |
5ed92fa8 UW |
1579 | struct frame_info *frame = get_current_frame (); |
1580 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1581 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1582 | ||
b81654f1 MS |
1583 | struct objc_super sstr; |
1584 | ||
1585 | CORE_ADDR super; | |
1586 | CORE_ADDR sel; | |
1587 | CORE_ADDR res; | |
1588 | ||
5ed92fa8 UW |
1589 | super = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); |
1590 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 2, ptr_type); | |
b81654f1 | 1591 | |
e17a4113 | 1592 | read_objc_super (gdbarch, super, &sstr); |
fe978cb0 | 1593 | if (sstr.theclass == 0) |
d2e6263c | 1594 | return 0; |
b81654f1 | 1595 | |
fe978cb0 | 1596 | res = find_implementation_from_class (gdbarch, sstr.theclass, sel); |
d2e6263c MS |
1597 | if (new_pc != 0) |
1598 | *new_pc = res; | |
1599 | if (res == 0) | |
1600 | return 1; | |
b81654f1 MS |
1601 | return 0; |
1602 | } |