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d2e6263c | 1 | /* Objective-C language support routines for GDB, the GNU debugger. |
b81654f1 | 2 | |
e2882c85 | 3 | Copyright (C) 2002-2018 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, | |
b81654f1 MS |
135 | 1, &classval)); |
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)); | |
7022349d | 163 | return value_as_long (call_function_by_hand (function, NULL, 1, &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); |
7022349d PA |
184 | nsstringValue = call_function_by_hand(function, |
185 | NULL, 1, &stringValue[2]); | |
b81654f1 | 186 | } |
3b7344d5 | 187 | else if (lookup_minimal_symbol("istr", 0, 0).minsym) |
b81654f1 | 188 | { |
3b7538c0 | 189 | function = find_function_in_inferior("istr", NULL); |
7022349d | 190 | nsstringValue = call_function_by_hand(function, NULL, 1, &stringValue[2]); |
b81654f1 | 191 | } |
3b7344d5 | 192 | else if (lookup_minimal_symbol("+[NSString stringWithCString:]", 0, 0).minsym) |
b81654f1 | 193 | { |
3e3b026f | 194 | function |
3b7538c0 UW |
195 | = find_function_in_inferior("+[NSString stringWithCString:]", NULL); |
196 | type = builtin_type (gdbarch)->builtin_long; | |
3e3b026f | 197 | |
b81654f1 | 198 | stringValue[0] = value_from_longest |
3b7538c0 | 199 | (type, lookup_objc_class (gdbarch, "NSString")); |
b81654f1 | 200 | stringValue[1] = value_from_longest |
3b7538c0 | 201 | (type, lookup_child_selector (gdbarch, "stringWithCString:")); |
7022349d | 202 | nsstringValue = call_function_by_hand(function, NULL, 3, &stringValue[0]); |
b81654f1 MS |
203 | } |
204 | else | |
8a3fe4f8 | 205 | error (_("NSString: internal error -- no way to create new NSString")); |
b81654f1 | 206 | |
3e3b026f UW |
207 | sym = lookup_struct_typedef("NSString", 0, 1); |
208 | if (sym == NULL) | |
209 | sym = lookup_struct_typedef("NXString", 0, 1); | |
210 | if (sym == NULL) | |
211 | type = builtin_type (gdbarch)->builtin_data_ptr; | |
212 | else | |
213 | type = lookup_pointer_type(SYMBOL_TYPE (sym)); | |
214 | ||
04624583 | 215 | deprecated_set_value_type (nsstringValue, type); |
b81654f1 MS |
216 | return nsstringValue; |
217 | } | |
218 | ||
d2e6263c | 219 | /* Objective-C name demangling. */ |
b81654f1 MS |
220 | |
221 | char * | |
9a3d7dfd | 222 | objc_demangle (const char *mangled, int options) |
b81654f1 MS |
223 | { |
224 | char *demangled, *cp; | |
225 | ||
226 | if (mangled[0] == '_' && | |
227 | (mangled[1] == 'i' || mangled[1] == 'c') && | |
228 | mangled[2] == '_') | |
229 | { | |
224c3ddb | 230 | cp = demangled = (char *) xmalloc (strlen (mangled) + 2); |
b81654f1 MS |
231 | |
232 | if (mangled[1] == 'i') | |
233 | *cp++ = '-'; /* for instance method */ | |
234 | else | |
235 | *cp++ = '+'; /* for class method */ | |
236 | ||
237 | *cp++ = '['; /* opening left brace */ | |
0df8b418 | 238 | strcpy(cp, mangled+3); /* Tack on the rest of the mangled name. */ |
b81654f1 MS |
239 | |
240 | while (*cp && *cp == '_') | |
0df8b418 MS |
241 | cp++; /* Skip any initial underbars in class |
242 | name. */ | |
b81654f1 | 243 | |
7248f48e | 244 | cp = strchr(cp, '_'); |
0df8b418 | 245 | if (!cp) /* Find first non-initial underbar. */ |
b81654f1 | 246 | { |
7248f48e | 247 | xfree(demangled); /* not mangled name */ |
b81654f1 MS |
248 | return NULL; |
249 | } | |
0df8b418 | 250 | if (cp[1] == '_') /* Easy case: no category name. */ |
5cc80db3 | 251 | { |
0df8b418 | 252 | *cp++ = ' '; /* Replace two '_' with one ' '. */ |
5cc80db3 MS |
253 | strcpy(cp, mangled + (cp - demangled) + 2); |
254 | } | |
255 | else | |
256 | { | |
0df8b418 | 257 | *cp++ = '('; /* Less easy case: category name. */ |
5cc80db3 MS |
258 | cp = strchr(cp, '_'); |
259 | if (!cp) | |
260 | { | |
261 | xfree(demangled); /* not mangled name */ | |
262 | return NULL; | |
263 | } | |
264 | *cp++ = ')'; | |
0df8b418 MS |
265 | *cp++ = ' '; /* Overwriting 1st char of method name... */ |
266 | strcpy(cp, mangled + (cp - demangled)); /* Get it back. */ | |
5cc80db3 | 267 | } |
b81654f1 MS |
268 | |
269 | while (*cp && *cp == '_') | |
0df8b418 MS |
270 | cp++; /* Skip any initial underbars in |
271 | method name. */ | |
b81654f1 MS |
272 | |
273 | for (; *cp; cp++) | |
274 | if (*cp == '_') | |
0df8b418 | 275 | *cp = ':'; /* Replace remaining '_' with ':'. */ |
b81654f1 MS |
276 | |
277 | *cp++ = ']'; /* closing right brace */ | |
278 | *cp++ = 0; /* string terminator */ | |
279 | return demangled; | |
280 | } | |
281 | else | |
d2e6263c | 282 | return NULL; /* Not an objc mangled name. */ |
b81654f1 MS |
283 | } |
284 | ||
8b302db8 TT |
285 | /* la_sniff_from_mangled_name for ObjC. */ |
286 | ||
287 | static int | |
288 | objc_sniff_from_mangled_name (const char *mangled, char **demangled) | |
289 | { | |
290 | *demangled = objc_demangle (mangled, 0); | |
291 | return *demangled != NULL; | |
292 | } | |
293 | ||
f636b87d AF |
294 | /* Determine if we are currently in the Objective-C dispatch function. |
295 | If so, get the address of the method function that the dispatcher | |
0df8b418 | 296 | would call and use that as the function to step into instead. Also |
f636b87d AF |
297 | skip over the trampoline for the function (if any). This is better |
298 | for the user since they are only interested in stepping into the | |
299 | method function anyway. */ | |
300 | static CORE_ADDR | |
52f729a7 | 301 | objc_skip_trampoline (struct frame_info *frame, CORE_ADDR stop_pc) |
f636b87d | 302 | { |
d80b854b | 303 | struct gdbarch *gdbarch = get_frame_arch (frame); |
f636b87d AF |
304 | CORE_ADDR real_stop_pc; |
305 | CORE_ADDR method_stop_pc; | |
306 | ||
d80b854b | 307 | real_stop_pc = gdbarch_skip_trampoline_code (gdbarch, frame, stop_pc); |
f636b87d AF |
308 | |
309 | if (real_stop_pc != 0) | |
310 | find_objc_msgcall (real_stop_pc, &method_stop_pc); | |
311 | else | |
312 | find_objc_msgcall (stop_pc, &method_stop_pc); | |
313 | ||
314 | if (method_stop_pc) | |
315 | { | |
e76f05fa | 316 | real_stop_pc = gdbarch_skip_trampoline_code |
d80b854b | 317 | (gdbarch, frame, method_stop_pc); |
f636b87d AF |
318 | if (real_stop_pc == 0) |
319 | real_stop_pc = method_stop_pc; | |
320 | } | |
321 | ||
322 | return real_stop_pc; | |
323 | } | |
324 | ||
b81654f1 MS |
325 | |
326 | /* Table mapping opcodes into strings for printing operators | |
327 | and precedences of the operators. */ | |
328 | ||
329 | static const struct op_print objc_op_print_tab[] = | |
330 | { | |
331 | {",", BINOP_COMMA, PREC_COMMA, 0}, | |
332 | {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, | |
333 | {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, | |
334 | {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, | |
335 | {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0}, | |
336 | {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0}, | |
337 | {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0}, | |
338 | {"==", BINOP_EQUAL, PREC_EQUAL, 0}, | |
339 | {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0}, | |
340 | {"<=", BINOP_LEQ, PREC_ORDER, 0}, | |
341 | {">=", BINOP_GEQ, PREC_ORDER, 0}, | |
342 | {">", BINOP_GTR, PREC_ORDER, 0}, | |
343 | {"<", BINOP_LESS, PREC_ORDER, 0}, | |
344 | {">>", BINOP_RSH, PREC_SHIFT, 0}, | |
345 | {"<<", BINOP_LSH, PREC_SHIFT, 0}, | |
346 | {"+", BINOP_ADD, PREC_ADD, 0}, | |
347 | {"-", BINOP_SUB, PREC_ADD, 0}, | |
348 | {"*", BINOP_MUL, PREC_MUL, 0}, | |
349 | {"/", BINOP_DIV, PREC_MUL, 0}, | |
350 | {"%", BINOP_REM, PREC_MUL, 0}, | |
351 | {"@", BINOP_REPEAT, PREC_REPEAT, 0}, | |
352 | {"-", UNOP_NEG, PREC_PREFIX, 0}, | |
353 | {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, | |
354 | {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0}, | |
355 | {"*", UNOP_IND, PREC_PREFIX, 0}, | |
356 | {"&", UNOP_ADDR, PREC_PREFIX, 0}, | |
357 | {"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0}, | |
358 | {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0}, | |
359 | {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0}, | |
e8f3fcdd | 360 | {NULL, OP_NULL, PREC_NULL, 0} |
b81654f1 MS |
361 | }; |
362 | ||
56618e20 TT |
363 | static const char *objc_extensions[] = |
364 | { | |
365 | ".m", NULL | |
366 | }; | |
367 | ||
47e77640 | 368 | extern const struct language_defn objc_language_defn = { |
d2e6263c | 369 | "objective-c", /* Language name */ |
6abde28f | 370 | "Objective-C", |
b81654f1 | 371 | language_objc, |
b81654f1 | 372 | range_check_off, |
b81654f1 | 373 | case_sensitive_on, |
7ca2d3a3 | 374 | array_row_major, |
9a044a89 | 375 | macro_expansion_c, |
56618e20 | 376 | objc_extensions, |
5f9769d1 | 377 | &exp_descriptor_standard, |
f2e8016f | 378 | c_parse, |
b3f11165 | 379 | c_yyerror, |
e85c3284 | 380 | null_post_parser, |
8a808554 TT |
381 | c_printchar, /* Print a character constant */ |
382 | c_printstr, /* Function to print string constant */ | |
383 | c_emit_char, | |
b81654f1 | 384 | c_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 385 | c_print_typedef, /* Print a typedef using appropriate syntax */ |
b81654f1 MS |
386 | c_val_print, /* Print a value using appropriate syntax */ |
387 | c_value_print, /* Print a top-level value */ | |
a5ee536b | 388 | default_read_var_value, /* la_read_var_value */ |
f636b87d | 389 | objc_skip_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 390 | "self", /* name_of_this */ |
59cc4834 | 391 | false, /* la_store_sym_names_in_linkage_form_p */ |
5f9a71c3 | 392 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 393 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 394 | objc_demangle, /* Language specific symbol demangler */ |
8b302db8 | 395 | objc_sniff_from_mangled_name, |
0df8b418 MS |
396 | NULL, /* Language specific |
397 | class_name_from_physname */ | |
d2e6263c MS |
398 | objc_op_print_tab, /* Expression operators for printing */ |
399 | 1, /* C-style arrays */ | |
b81654f1 | 400 | 0, /* String lower bound */ |
6084f43a | 401 | default_word_break_characters, |
eb3ff9a5 | 402 | default_collect_symbol_completion_matches, |
cad351d1 | 403 | c_language_arch_info, |
e79af960 | 404 | default_print_array_index, |
41f1b697 | 405 | default_pass_by_reference, |
ae6a3a4c | 406 | default_get_string, |
43cc5389 | 407 | c_watch_location_expression, |
b5ec771e | 408 | NULL, /* la_get_symbol_name_matcher */ |
f8eba3c6 | 409 | iterate_over_symbols, |
5ffa0793 | 410 | default_search_name_hash, |
a53b64ea | 411 | &default_varobj_ops, |
bb2ec1b3 TT |
412 | NULL, |
413 | NULL, | |
b81654f1 MS |
414 | LANG_MAGIC |
415 | }; | |
416 | ||
417 | /* | |
418 | * ObjC: | |
0df8b418 | 419 | * Following functions help construct Objective-C message calls. |
b81654f1 MS |
420 | */ |
421 | ||
d2e6263c | 422 | struct selname /* For parsing Objective-C. */ |
b81654f1 MS |
423 | { |
424 | struct selname *next; | |
425 | char *msglist_sel; | |
426 | int msglist_len; | |
427 | }; | |
428 | ||
429 | static int msglist_len; | |
430 | static struct selname *selname_chain; | |
431 | static char *msglist_sel; | |
432 | ||
433 | void | |
434 | start_msglist(void) | |
435 | { | |
8d749320 | 436 | struct selname *newobj = XNEW (struct selname); |
b81654f1 | 437 | |
fe978cb0 PA |
438 | newobj->next = selname_chain; |
439 | newobj->msglist_len = msglist_len; | |
440 | newobj->msglist_sel = msglist_sel; | |
b81654f1 MS |
441 | msglist_len = 0; |
442 | msglist_sel = (char *)xmalloc(1); | |
443 | *msglist_sel = 0; | |
fe978cb0 | 444 | selname_chain = newobj; |
b81654f1 MS |
445 | } |
446 | ||
447 | void | |
448 | add_msglist(struct stoken *str, int addcolon) | |
449 | { | |
d7561cbb KS |
450 | char *s; |
451 | const char *p; | |
b81654f1 MS |
452 | int len, plen; |
453 | ||
5cc80db3 MS |
454 | if (str == 0) /* Unnamed arg, or... */ |
455 | { | |
456 | if (addcolon == 0) /* variable number of args. */ | |
457 | { | |
458 | msglist_len++; | |
459 | return; | |
460 | } | |
461 | p = ""; | |
462 | plen = 0; | |
463 | } | |
464 | else | |
465 | { | |
466 | p = str->ptr; | |
467 | plen = str->length; | |
b81654f1 | 468 | } |
b81654f1 MS |
469 | len = plen + strlen(msglist_sel) + 2; |
470 | s = (char *)xmalloc(len); | |
471 | strcpy(s, msglist_sel); | |
472 | strncat(s, p, plen); | |
7248f48e | 473 | xfree(msglist_sel); |
b81654f1 | 474 | msglist_sel = s; |
5cc80db3 MS |
475 | if (addcolon) |
476 | { | |
477 | s[len-2] = ':'; | |
478 | s[len-1] = 0; | |
479 | msglist_len++; | |
480 | } | |
481 | else | |
b81654f1 MS |
482 | s[len-2] = '\0'; |
483 | } | |
484 | ||
485 | int | |
410a0ff2 | 486 | end_msglist (struct parser_state *ps) |
b81654f1 | 487 | { |
f86f5ca3 PH |
488 | int val = msglist_len; |
489 | struct selname *sel = selname_chain; | |
490 | char *p = msglist_sel; | |
c253954e | 491 | CORE_ADDR selid; |
b81654f1 MS |
492 | |
493 | selname_chain = sel->next; | |
494 | msglist_len = sel->msglist_len; | |
495 | msglist_sel = sel->msglist_sel; | |
410a0ff2 | 496 | selid = lookup_child_selector (parse_gdbarch (ps), p); |
b81654f1 | 497 | if (!selid) |
8a3fe4f8 | 498 | error (_("Can't find selector \"%s\""), p); |
410a0ff2 | 499 | write_exp_elt_longcst (ps, selid); |
7248f48e | 500 | xfree(p); |
410a0ff2 | 501 | write_exp_elt_longcst (ps, val); /* Number of args */ |
7248f48e | 502 | xfree(sel); |
b81654f1 MS |
503 | |
504 | return val; | |
505 | } | |
506 | ||
507 | /* | |
0d5cff50 | 508 | * Function: specialcmp (const char *a, const char *b) |
b81654f1 MS |
509 | * |
510 | * Special strcmp: treats ']' and ' ' as end-of-string. | |
d2e6263c | 511 | * Used for qsorting lists of objc methods (either by class or selector). |
b81654f1 MS |
512 | */ |
513 | ||
b9362cc7 | 514 | static int |
0d5cff50 | 515 | specialcmp (const char *a, const char *b) |
b81654f1 MS |
516 | { |
517 | while (*a && *a != ' ' && *a != ']' && *b && *b != ' ' && *b != ']') | |
518 | { | |
519 | if (*a != *b) | |
520 | return *a - *b; | |
521 | a++, b++; | |
522 | } | |
523 | if (*a && *a != ' ' && *a != ']') | |
0df8b418 | 524 | return 1; /* a is longer therefore greater. */ |
b81654f1 | 525 | if (*b && *b != ' ' && *b != ']') |
0df8b418 MS |
526 | return -1; /* a is shorter therefore lesser. */ |
527 | return 0; /* a and b are identical. */ | |
b81654f1 MS |
528 | } |
529 | ||
530 | /* | |
36e53c63 | 531 | * Function: compare_selectors (const void *, const void *) |
b81654f1 | 532 | * |
d2e6263c MS |
533 | * Comparison function for use with qsort. Arguments are symbols or |
534 | * msymbols Compares selector part of objc method name alphabetically. | |
b81654f1 MS |
535 | */ |
536 | ||
537 | static int | |
36e53c63 | 538 | compare_selectors (const void *a, const void *b) |
b81654f1 | 539 | { |
0d5cff50 | 540 | const char *aname, *bname; |
b81654f1 | 541 | |
de5ad195 DC |
542 | aname = SYMBOL_PRINT_NAME (*(struct symbol **) a); |
543 | bname = SYMBOL_PRINT_NAME (*(struct symbol **) b); | |
7248f48e | 544 | if (aname == NULL || bname == NULL) |
8a3fe4f8 | 545 | error (_("internal: compare_selectors(1)")); |
b81654f1 | 546 | |
7248f48e AF |
547 | aname = strchr(aname, ' '); |
548 | bname = strchr(bname, ' '); | |
549 | if (aname == NULL || bname == NULL) | |
8a3fe4f8 | 550 | error (_("internal: compare_selectors(2)")); |
b81654f1 MS |
551 | |
552 | return specialcmp (aname+1, bname+1); | |
553 | } | |
554 | ||
555 | /* | |
556 | * Function: selectors_info (regexp, from_tty) | |
557 | * | |
d2e6263c MS |
558 | * Implements the "Info selectors" command. Takes an optional regexp |
559 | * arg. Lists all objective c selectors that match the regexp. Works | |
560 | * by grepping thru all symbols for objective c methods. Output list | |
561 | * is sorted and uniqued. | |
b81654f1 MS |
562 | */ |
563 | ||
564 | static void | |
1d12d88f | 565 | info_selectors_command (const char *regexp, int from_tty) |
b81654f1 MS |
566 | { |
567 | struct objfile *objfile; | |
568 | struct minimal_symbol *msymbol; | |
0d5cff50 | 569 | const char *name; |
b81654f1 MS |
570 | char *val; |
571 | int matches = 0; | |
572 | int maxlen = 0; | |
573 | int ix; | |
574 | char myregexp[2048]; | |
575 | char asel[256]; | |
576 | struct symbol **sym_arr; | |
577 | int plusminus = 0; | |
578 | ||
579 | if (regexp == NULL) | |
d2e6263c | 580 | strcpy(myregexp, ".*]"); /* Null input, match all objc methods. */ |
b81654f1 MS |
581 | else |
582 | { | |
d2e6263c MS |
583 | if (*regexp == '+' || *regexp == '-') |
584 | { /* User wants only class methods or only instance methods. */ | |
b81654f1 MS |
585 | plusminus = *regexp++; |
586 | while (*regexp == ' ' || *regexp == '\t') | |
587 | regexp++; | |
588 | } | |
589 | if (*regexp == '\0') | |
590 | strcpy(myregexp, ".*]"); | |
591 | else | |
592 | { | |
a9dc8dcc | 593 | /* Allow a few extra bytes because of the strcat below. */ |
28288541 | 594 | if (sizeof (myregexp) < strlen (regexp) + 4) |
20937029 JK |
595 | error (_("Regexp is too long: %s"), regexp); |
596 | strcpy(myregexp, regexp); | |
b81654f1 MS |
597 | if (myregexp[strlen(myregexp) - 1] == '$') /* end of selector */ |
598 | myregexp[strlen(myregexp) - 1] = ']'; /* end of method name */ | |
599 | else | |
600 | strcat(myregexp, ".*]"); | |
601 | } | |
602 | } | |
603 | ||
604 | if (regexp != NULL) | |
5e488a7b AC |
605 | { |
606 | val = re_comp (myregexp); | |
607 | if (val != 0) | |
8a3fe4f8 | 608 | error (_("Invalid regexp (%s): %s"), val, regexp); |
5e488a7b | 609 | } |
b81654f1 | 610 | |
d2e6263c | 611 | /* First time thru is JUST to get max length and count. */ |
b81654f1 MS |
612 | ALL_MSYMBOLS (objfile, msymbol) |
613 | { | |
614 | QUIT; | |
efd66ac6 | 615 | name = MSYMBOL_NATURAL_NAME (msymbol); |
3e6ef9e4 JB |
616 | if (name |
617 | && (name[0] == '-' || name[0] == '+') | |
618 | && name[1] == '[') /* Got a method name. */ | |
b81654f1 | 619 | { |
d2e6263c | 620 | /* Filter for class/instance methods. */ |
b81654f1 | 621 | if (plusminus && name[0] != plusminus) |
d2e6263c MS |
622 | continue; |
623 | /* Find selector part. */ | |
3e6ef9e4 | 624 | name = (char *) strchr (name+2, ' '); |
50412521 MS |
625 | if (name == NULL) |
626 | { | |
b98664d3 | 627 | complaint (_("Bad method name '%s'"), |
efd66ac6 | 628 | MSYMBOL_NATURAL_NAME (msymbol)); |
50412521 MS |
629 | continue; |
630 | } | |
b81654f1 MS |
631 | if (regexp == NULL || re_exec(++name) != 0) |
632 | { | |
0d5cff50 DE |
633 | const char *mystart = name; |
634 | const char *myend = strchr (mystart, ']'); | |
b81654f1 MS |
635 | |
636 | if (myend && (myend - mystart > maxlen)) | |
d2e6263c | 637 | maxlen = myend - mystart; /* Get longest selector. */ |
b81654f1 MS |
638 | matches++; |
639 | } | |
640 | } | |
641 | } | |
642 | if (matches) | |
643 | { | |
a3f17187 | 644 | printf_filtered (_("Selectors matching \"%s\":\n\n"), |
b81654f1 MS |
645 | regexp ? regexp : "*"); |
646 | ||
8d749320 | 647 | sym_arr = XALLOCAVEC (struct symbol *, matches); |
b81654f1 MS |
648 | matches = 0; |
649 | ALL_MSYMBOLS (objfile, msymbol) | |
650 | { | |
651 | QUIT; | |
efd66ac6 | 652 | name = MSYMBOL_NATURAL_NAME (msymbol); |
b81654f1 MS |
653 | if (name && |
654 | (name[0] == '-' || name[0] == '+') && | |
d2e6263c | 655 | name[1] == '[') /* Got a method name. */ |
b81654f1 | 656 | { |
d2e6263c | 657 | /* Filter for class/instance methods. */ |
b81654f1 | 658 | if (plusminus && name[0] != plusminus) |
d2e6263c MS |
659 | continue; |
660 | /* Find selector part. */ | |
661 | name = (char *) strchr(name+2, ' '); | |
b81654f1 MS |
662 | if (regexp == NULL || re_exec(++name) != 0) |
663 | sym_arr[matches++] = (struct symbol *) msymbol; | |
664 | } | |
665 | } | |
666 | ||
667 | qsort (sym_arr, matches, sizeof (struct minimal_symbol *), | |
668 | compare_selectors); | |
d2e6263c MS |
669 | /* Prevent compare on first iteration. */ |
670 | asel[0] = 0; | |
671 | for (ix = 0; ix < matches; ix++) /* Now do the output. */ | |
b81654f1 MS |
672 | { |
673 | char *p = asel; | |
674 | ||
675 | QUIT; | |
36018d2e | 676 | name = SYMBOL_NATURAL_NAME (sym_arr[ix]); |
b81654f1 MS |
677 | name = strchr (name, ' ') + 1; |
678 | if (p[0] && specialcmp(name, p) == 0) | |
d2e6263c | 679 | continue; /* Seen this one already (not unique). */ |
b81654f1 | 680 | |
d2e6263c MS |
681 | /* Copy selector part. */ |
682 | while (*name && *name != ']') | |
b81654f1 MS |
683 | *p++ = *name++; |
684 | *p++ = '\0'; | |
d2e6263c MS |
685 | /* Print in columns. */ |
686 | puts_filtered_tabular(asel, maxlen + 1, 0); | |
b81654f1 MS |
687 | } |
688 | begin_line(); | |
689 | } | |
690 | else | |
0df8b418 MS |
691 | printf_filtered (_("No selectors matching \"%s\"\n"), |
692 | regexp ? regexp : "*"); | |
b81654f1 MS |
693 | } |
694 | ||
695 | /* | |
36e53c63 | 696 | * Function: compare_classes (const void *, const void *) |
b81654f1 | 697 | * |
d2e6263c MS |
698 | * Comparison function for use with qsort. Arguments are symbols or |
699 | * msymbols Compares class part of objc method name alphabetically. | |
b81654f1 MS |
700 | */ |
701 | ||
702 | static int | |
36e53c63 | 703 | compare_classes (const void *a, const void *b) |
b81654f1 | 704 | { |
0d5cff50 | 705 | const char *aname, *bname; |
b81654f1 | 706 | |
de5ad195 DC |
707 | aname = SYMBOL_PRINT_NAME (*(struct symbol **) a); |
708 | bname = SYMBOL_PRINT_NAME (*(struct symbol **) b); | |
7248f48e | 709 | if (aname == NULL || bname == NULL) |
8a3fe4f8 | 710 | error (_("internal: compare_classes(1)")); |
b81654f1 MS |
711 | |
712 | return specialcmp (aname+1, bname+1); | |
713 | } | |
714 | ||
715 | /* | |
716 | * Function: classes_info(regexp, from_tty) | |
717 | * | |
718 | * Implements the "info classes" command for objective c classes. | |
719 | * Lists all objective c classes that match the optional regexp. | |
d2e6263c MS |
720 | * Works by grepping thru the list of objective c methods. List will |
721 | * be sorted and uniqued (since one class may have many methods). | |
722 | * BUGS: will not list a class that has no methods. | |
b81654f1 MS |
723 | */ |
724 | ||
725 | static void | |
1d12d88f | 726 | info_classes_command (const char *regexp, int from_tty) |
b81654f1 MS |
727 | { |
728 | struct objfile *objfile; | |
729 | struct minimal_symbol *msymbol; | |
0d5cff50 | 730 | const char *name; |
b81654f1 MS |
731 | char *val; |
732 | int matches = 0; | |
733 | int maxlen = 0; | |
734 | int ix; | |
735 | char myregexp[2048]; | |
736 | char aclass[256]; | |
737 | struct symbol **sym_arr; | |
738 | ||
739 | if (regexp == NULL) | |
d2e6263c | 740 | strcpy(myregexp, ".* "); /* Null input: match all objc classes. */ |
b81654f1 MS |
741 | else |
742 | { | |
a9dc8dcc | 743 | /* Allow a few extra bytes because of the strcat below. */ |
28288541 MS |
744 | if (sizeof (myregexp) < strlen (regexp) + 4) |
745 | error (_("Regexp is too long: %s"), regexp); | |
b81654f1 MS |
746 | strcpy(myregexp, regexp); |
747 | if (myregexp[strlen(myregexp) - 1] == '$') | |
d2e6263c | 748 | /* In the method name, the end of the class name is marked by ' '. */ |
b81654f1 MS |
749 | myregexp[strlen(myregexp) - 1] = ' '; |
750 | else | |
751 | strcat(myregexp, ".* "); | |
752 | } | |
753 | ||
754 | if (regexp != NULL) | |
5e488a7b AC |
755 | { |
756 | val = re_comp (myregexp); | |
757 | if (val != 0) | |
8a3fe4f8 | 758 | error (_("Invalid regexp (%s): %s"), val, regexp); |
5e488a7b | 759 | } |
b81654f1 | 760 | |
d2e6263c | 761 | /* First time thru is JUST to get max length and count. */ |
b81654f1 MS |
762 | ALL_MSYMBOLS (objfile, msymbol) |
763 | { | |
764 | QUIT; | |
efd66ac6 | 765 | name = MSYMBOL_NATURAL_NAME (msymbol); |
b81654f1 MS |
766 | if (name && |
767 | (name[0] == '-' || name[0] == '+') && | |
d2e6263c | 768 | name[1] == '[') /* Got a method name. */ |
b81654f1 MS |
769 | if (regexp == NULL || re_exec(name+2) != 0) |
770 | { | |
d2e6263c | 771 | /* Compute length of classname part. */ |
0d5cff50 DE |
772 | const char *mystart = name + 2; |
773 | const char *myend = strchr (mystart, ' '); | |
b81654f1 MS |
774 | |
775 | if (myend && (myend - mystart > maxlen)) | |
776 | maxlen = myend - mystart; | |
777 | matches++; | |
778 | } | |
779 | } | |
780 | if (matches) | |
781 | { | |
a3f17187 | 782 | printf_filtered (_("Classes matching \"%s\":\n\n"), |
b81654f1 | 783 | regexp ? regexp : "*"); |
8d749320 | 784 | sym_arr = XALLOCAVEC (struct symbol *, matches); |
b81654f1 MS |
785 | matches = 0; |
786 | ALL_MSYMBOLS (objfile, msymbol) | |
787 | { | |
788 | QUIT; | |
efd66ac6 | 789 | name = MSYMBOL_NATURAL_NAME (msymbol); |
b81654f1 MS |
790 | if (name && |
791 | (name[0] == '-' || name[0] == '+') && | |
d2e6263c | 792 | name[1] == '[') /* Got a method name. */ |
b81654f1 MS |
793 | if (regexp == NULL || re_exec(name+2) != 0) |
794 | sym_arr[matches++] = (struct symbol *) msymbol; | |
795 | } | |
796 | ||
797 | qsort (sym_arr, matches, sizeof (struct minimal_symbol *), | |
798 | compare_classes); | |
d2e6263c MS |
799 | /* Prevent compare on first iteration. */ |
800 | aclass[0] = 0; | |
801 | for (ix = 0; ix < matches; ix++) /* Now do the output. */ | |
b81654f1 MS |
802 | { |
803 | char *p = aclass; | |
804 | ||
805 | QUIT; | |
36018d2e | 806 | name = SYMBOL_NATURAL_NAME (sym_arr[ix]); |
b81654f1 MS |
807 | name += 2; |
808 | if (p[0] && specialcmp(name, p) == 0) | |
d2e6263c | 809 | continue; /* Seen this one already (not unique). */ |
b81654f1 | 810 | |
d2e6263c MS |
811 | /* Copy class part of method name. */ |
812 | while (*name && *name != ' ') | |
b81654f1 MS |
813 | *p++ = *name++; |
814 | *p++ = '\0'; | |
d2e6263c MS |
815 | /* Print in columns. */ |
816 | puts_filtered_tabular(aclass, maxlen + 1, 0); | |
b81654f1 MS |
817 | } |
818 | begin_line(); | |
819 | } | |
820 | else | |
a3f17187 | 821 | printf_filtered (_("No classes matching \"%s\"\n"), regexp ? regexp : "*"); |
b81654f1 MS |
822 | } |
823 | ||
f8eba3c6 | 824 | static char * |
b81654f1 MS |
825 | parse_selector (char *method, char **selector) |
826 | { | |
827 | char *s1 = NULL; | |
828 | char *s2 = NULL; | |
829 | int found_quote = 0; | |
830 | ||
831 | char *nselector = NULL; | |
832 | ||
e8f3fcdd | 833 | gdb_assert (selector != NULL); |
b81654f1 MS |
834 | |
835 | s1 = method; | |
836 | ||
529480d0 | 837 | s1 = skip_spaces (s1); |
b81654f1 MS |
838 | if (*s1 == '\'') |
839 | { | |
840 | found_quote = 1; | |
841 | s1++; | |
842 | } | |
529480d0 | 843 | s1 = skip_spaces (s1); |
b81654f1 MS |
844 | |
845 | nselector = s1; | |
846 | s2 = s1; | |
847 | ||
5cc80db3 MS |
848 | for (;;) |
849 | { | |
850 | if (isalnum (*s2) || (*s2 == '_') || (*s2 == ':')) | |
851 | *s1++ = *s2; | |
852 | else if (isspace (*s2)) | |
853 | ; | |
854 | else if ((*s2 == '\0') || (*s2 == '\'')) | |
855 | break; | |
856 | else | |
857 | return NULL; | |
858 | s2++; | |
859 | } | |
b81654f1 MS |
860 | *s1++ = '\0'; |
861 | ||
529480d0 | 862 | s2 = skip_spaces (s2); |
b81654f1 MS |
863 | if (found_quote) |
864 | { | |
865 | if (*s2 == '\'') | |
866 | s2++; | |
529480d0 | 867 | s2 = skip_spaces (s2); |
b81654f1 MS |
868 | } |
869 | ||
870 | if (selector != NULL) | |
871 | *selector = nselector; | |
872 | ||
873 | return s2; | |
874 | } | |
875 | ||
f8eba3c6 | 876 | static char * |
fe978cb0 | 877 | parse_method (char *method, char *type, char **theclass, |
d2e6263c | 878 | char **category, char **selector) |
b81654f1 MS |
879 | { |
880 | char *s1 = NULL; | |
881 | char *s2 = NULL; | |
882 | int found_quote = 0; | |
883 | ||
884 | char ntype = '\0'; | |
885 | char *nclass = NULL; | |
886 | char *ncategory = NULL; | |
887 | char *nselector = NULL; | |
888 | ||
e8f3fcdd | 889 | gdb_assert (type != NULL); |
fe978cb0 | 890 | gdb_assert (theclass != NULL); |
e8f3fcdd AC |
891 | gdb_assert (category != NULL); |
892 | gdb_assert (selector != NULL); | |
b81654f1 MS |
893 | |
894 | s1 = method; | |
895 | ||
529480d0 | 896 | s1 = skip_spaces (s1); |
b81654f1 MS |
897 | if (*s1 == '\'') |
898 | { | |
899 | found_quote = 1; | |
900 | s1++; | |
901 | } | |
529480d0 | 902 | s1 = skip_spaces (s1); |
b81654f1 MS |
903 | |
904 | if ((s1[0] == '+') || (s1[0] == '-')) | |
905 | ntype = *s1++; | |
906 | ||
529480d0 | 907 | s1 = skip_spaces (s1); |
b81654f1 MS |
908 | |
909 | if (*s1 != '[') | |
910 | return NULL; | |
911 | s1++; | |
912 | ||
913 | nclass = s1; | |
914 | while (isalnum (*s1) || (*s1 == '_')) | |
915 | s1++; | |
916 | ||
917 | s2 = s1; | |
529480d0 | 918 | s2 = skip_spaces (s2); |
b81654f1 MS |
919 | |
920 | if (*s2 == '(') | |
921 | { | |
922 | s2++; | |
529480d0 | 923 | s2 = skip_spaces (s2); |
b81654f1 MS |
924 | ncategory = s2; |
925 | while (isalnum (*s2) || (*s2 == '_')) | |
926 | s2++; | |
927 | *s2++ = '\0'; | |
928 | } | |
929 | ||
d2e6263c | 930 | /* Truncate the class name now that we're not using the open paren. */ |
b81654f1 MS |
931 | *s1++ = '\0'; |
932 | ||
933 | nselector = s2; | |
934 | s1 = s2; | |
935 | ||
5cc80db3 MS |
936 | for (;;) |
937 | { | |
938 | if (isalnum (*s2) || (*s2 == '_') || (*s2 == ':')) | |
939 | *s1++ = *s2; | |
940 | else if (isspace (*s2)) | |
941 | ; | |
942 | else if (*s2 == ']') | |
943 | break; | |
944 | else | |
945 | return NULL; | |
946 | s2++; | |
947 | } | |
b81654f1 MS |
948 | *s1++ = '\0'; |
949 | s2++; | |
950 | ||
529480d0 | 951 | s2 = skip_spaces (s2); |
b81654f1 MS |
952 | if (found_quote) |
953 | { | |
954 | if (*s2 != '\'') | |
955 | return NULL; | |
956 | s2++; | |
529480d0 | 957 | s2 = skip_spaces (s2); |
b81654f1 MS |
958 | } |
959 | ||
960 | if (type != NULL) | |
961 | *type = ntype; | |
fe978cb0 PA |
962 | if (theclass != NULL) |
963 | *theclass = nclass; | |
b81654f1 MS |
964 | if (category != NULL) |
965 | *category = ncategory; | |
966 | if (selector != NULL) | |
967 | *selector = nselector; | |
968 | ||
969 | return s2; | |
970 | } | |
971 | ||
2f9a90b4 | 972 | static void |
fe978cb0 | 973 | find_methods (char type, const char *theclass, const char *category, |
f8eba3c6 | 974 | const char *selector, |
9b2f8581 | 975 | std::vector<const char *> *symbol_names) |
b81654f1 MS |
976 | { |
977 | struct objfile *objfile = NULL; | |
b81654f1 | 978 | |
0d5cff50 | 979 | const char *symname = NULL; |
b81654f1 MS |
980 | |
981 | char ntype = '\0'; | |
982 | char *nclass = NULL; | |
983 | char *ncategory = NULL; | |
984 | char *nselector = NULL; | |
985 | ||
b81654f1 MS |
986 | static char *tmp = NULL; |
987 | static unsigned int tmplen = 0; | |
988 | ||
f8eba3c6 | 989 | gdb_assert (symbol_names != NULL); |
b81654f1 | 990 | |
57a9e6af | 991 | ALL_OBJFILES (objfile) |
b81654f1 | 992 | { |
57a9e6af | 993 | unsigned int *objc_csym; |
f8eba3c6 | 994 | struct minimal_symbol *msymbol = NULL; |
b81654f1 | 995 | |
57a9e6af PP |
996 | /* The objfile_csym variable counts the number of ObjC methods |
997 | that this objfile defines. We save that count as a private | |
998 | objfile data. If we have already determined that this objfile | |
999 | provides no ObjC methods, we can skip it entirely. */ | |
b81654f1 | 1000 | |
57a9e6af | 1001 | unsigned int objfile_csym = 0; |
b81654f1 | 1002 | |
19ba03f4 | 1003 | objc_csym = (unsigned int *) objfile_data (objfile, objc_objfile_data); |
57a9e6af PP |
1004 | if (objc_csym != NULL && *objc_csym == 0) |
1005 | /* There are no ObjC symbols in this objfile. Skip it entirely. */ | |
b81654f1 MS |
1006 | continue; |
1007 | ||
57a9e6af | 1008 | ALL_OBJFILE_MSYMBOLS (objfile, msymbol) |
b81654f1 | 1009 | { |
57a9e6af | 1010 | QUIT; |
b81654f1 | 1011 | |
0c4b2e63 MF |
1012 | /* Check the symbol name first as this can be done entirely without |
1013 | sending any query to the target. */ | |
efd66ac6 | 1014 | symname = MSYMBOL_NATURAL_NAME (msymbol); |
0c4b2e63 MF |
1015 | if (symname == NULL) |
1016 | continue; | |
1017 | ||
1018 | if ((symname[0] != '-' && symname[0] != '+') || (symname[1] != '[')) | |
1019 | /* Not a method name. */ | |
1020 | continue; | |
1021 | ||
8dfd1e6d KS |
1022 | objfile_csym++; |
1023 | ||
0c4b2e63 | 1024 | /* Now that thinks are a bit sane, clean up the symname. */ |
57a9e6af PP |
1025 | while ((strlen (symname) + 1) >= tmplen) |
1026 | { | |
1027 | tmplen = (tmplen == 0) ? 1024 : tmplen * 2; | |
224c3ddb | 1028 | tmp = (char *) xrealloc (tmp, tmplen); |
57a9e6af PP |
1029 | } |
1030 | strcpy (tmp, symname); | |
b81654f1 | 1031 | |
0df8b418 MS |
1032 | if (parse_method (tmp, &ntype, &nclass, |
1033 | &ncategory, &nselector) == NULL) | |
57a9e6af | 1034 | continue; |
b81654f1 | 1035 | |
57a9e6af PP |
1036 | if ((type != '\0') && (ntype != type)) |
1037 | continue; | |
b81654f1 | 1038 | |
fe978cb0 PA |
1039 | if ((theclass != NULL) |
1040 | && ((nclass == NULL) || (strcmp (theclass, nclass) != 0))) | |
57a9e6af PP |
1041 | continue; |
1042 | ||
1043 | if ((category != NULL) && | |
1044 | ((ncategory == NULL) || (strcmp (category, ncategory) != 0))) | |
1045 | continue; | |
b81654f1 | 1046 | |
57a9e6af PP |
1047 | if ((selector != NULL) && |
1048 | ((nselector == NULL) || (strcmp (selector, nselector) != 0))) | |
1049 | continue; | |
1050 | ||
9b2f8581 | 1051 | symbol_names->push_back (symname); |
57a9e6af | 1052 | } |
f8eba3c6 | 1053 | |
57a9e6af | 1054 | if (objc_csym == NULL) |
b81654f1 | 1055 | { |
8d749320 | 1056 | objc_csym = XOBNEW (&objfile->objfile_obstack, unsigned int); |
57a9e6af PP |
1057 | *objc_csym = objfile_csym; |
1058 | set_objfile_data (objfile, objc_objfile_data, objc_csym); | |
b81654f1 | 1059 | } |
57a9e6af PP |
1060 | else |
1061 | /* Count of ObjC methods in this objfile should be constant. */ | |
1062 | gdb_assert (*objc_csym == objfile_csym); | |
b81654f1 | 1063 | } |
f8eba3c6 | 1064 | } |
b81654f1 | 1065 | |
f8eba3c6 TT |
1066 | /* Uniquify a VEC of strings. */ |
1067 | ||
1068 | static void | |
9b2f8581 | 1069 | uniquify_strings (std::vector<const char *> *strings) |
f8eba3c6 | 1070 | { |
9b2f8581 | 1071 | if (strings->empty ()) |
ee7615e1 AA |
1072 | return; |
1073 | ||
9b2f8581 TT |
1074 | std::sort (strings->begin (), strings->end (), compare_cstrings); |
1075 | strings->erase (std::unique (strings->begin (), strings->end (), streq), | |
1076 | strings->end ()); | |
b81654f1 MS |
1077 | } |
1078 | ||
f8eba3c6 | 1079 | /* |
d7561cbb | 1080 | * Function: find_imps (const char *selector, struct symbol **sym_arr) |
f8eba3c6 TT |
1081 | * |
1082 | * Input: a string representing a selector | |
1083 | * a pointer to an array of symbol pointers | |
1084 | * possibly a pointer to a symbol found by the caller. | |
1085 | * | |
1086 | * Output: number of methods that implement that selector. Side | |
1087 | * effects: The array of symbol pointers is filled with matching syms. | |
1088 | * | |
1089 | * By analogy with function "find_methods" (symtab.c), builds a list | |
1090 | * of symbols matching the ambiguous input, so that "decode_line_2" | |
1091 | * (symtab.c) can list them and ask the user to choose one or more. | |
1092 | * In this case the matches are objective c methods | |
1093 | * ("implementations") matching an objective c selector. | |
1094 | * | |
1095 | * Note that it is possible for a normal (c-style) function to have | |
1096 | * the same name as an objective c selector. To prevent the selector | |
1097 | * from eclipsing the function, we allow the caller (decode_line_1) to | |
1098 | * search for such a function first, and if it finds one, pass it in | |
1099 | * to us. We will then integrate it into the list. We also search | |
1100 | * for one here, among the minsyms. | |
1101 | * | |
1102 | * NOTE: if NUM_DEBUGGABLE is non-zero, the sym_arr will be divided | |
1103 | * into two parts: debuggable (struct symbol) syms, and | |
1104 | * non_debuggable (struct minimal_symbol) syms. The debuggable | |
1105 | * ones will come first, before NUM_DEBUGGABLE (which will thus | |
1106 | * be the index of the first non-debuggable one). | |
1107 | */ | |
1108 | ||
d7561cbb | 1109 | const char * |
9b2f8581 | 1110 | find_imps (const char *method, std::vector<const char *> *symbol_names) |
b81654f1 MS |
1111 | { |
1112 | char type = '\0'; | |
fe978cb0 | 1113 | char *theclass = NULL; |
b81654f1 MS |
1114 | char *category = NULL; |
1115 | char *selector = NULL; | |
1116 | ||
b81654f1 MS |
1117 | char *buf = NULL; |
1118 | char *tmp = NULL; | |
1119 | ||
f8eba3c6 | 1120 | int selector_case = 0; |
b81654f1 | 1121 | |
f8eba3c6 | 1122 | gdb_assert (symbol_names != NULL); |
b81654f1 MS |
1123 | |
1124 | buf = (char *) alloca (strlen (method) + 1); | |
1125 | strcpy (buf, method); | |
fe978cb0 | 1126 | tmp = parse_method (buf, &type, &theclass, &category, &selector); |
b81654f1 | 1127 | |
5cc80db3 MS |
1128 | if (tmp == NULL) |
1129 | { | |
5cc80db3 MS |
1130 | strcpy (buf, method); |
1131 | tmp = parse_selector (buf, &selector); | |
b81654f1 | 1132 | |
5cc80db3 MS |
1133 | if (tmp == NULL) |
1134 | return NULL; | |
1135 | ||
f8eba3c6 | 1136 | selector_case = 1; |
5cc80db3 | 1137 | } |
b81654f1 | 1138 | |
fe978cb0 | 1139 | find_methods (type, theclass, category, selector, symbol_names); |
b81654f1 | 1140 | |
f8eba3c6 TT |
1141 | /* If we hit the "selector" case, and we found some methods, then |
1142 | add the selector itself as a symbol, if it exists. */ | |
9b2f8581 | 1143 | if (selector_case && !symbol_names->empty ()) |
b81654f1 | 1144 | { |
d12307c1 PMR |
1145 | struct symbol *sym = lookup_symbol (selector, NULL, VAR_DOMAIN, |
1146 | 0).symbol; | |
f8eba3c6 TT |
1147 | |
1148 | if (sym != NULL) | |
9b2f8581 | 1149 | symbol_names->push_back (SYMBOL_NATURAL_NAME (sym)); |
f8eba3c6 | 1150 | else |
b81654f1 | 1151 | { |
3b7344d5 TT |
1152 | struct bound_minimal_symbol msym |
1153 | = lookup_minimal_symbol (selector, 0, 0); | |
f8eba3c6 | 1154 | |
3b7344d5 | 1155 | if (msym.minsym != NULL) |
9b2f8581 | 1156 | symbol_names->push_back (MSYMBOL_NATURAL_NAME (msym.minsym)); |
b81654f1 MS |
1157 | } |
1158 | } | |
1159 | ||
f8eba3c6 | 1160 | uniquify_strings (symbol_names); |
b81654f1 MS |
1161 | |
1162 | return method + (tmp - buf); | |
1163 | } | |
1164 | ||
b9362cc7 | 1165 | static void |
0b39b52e | 1166 | print_object_command (const char *args, int from_tty) |
b81654f1 MS |
1167 | { |
1168 | struct value *object, *function, *description; | |
36e53c63 | 1169 | CORE_ADDR string_addr, object_addr; |
b81654f1 | 1170 | int i = 0; |
22a44745 | 1171 | gdb_byte c = 0; |
b81654f1 MS |
1172 | |
1173 | if (!args || !*args) | |
d2e6263c MS |
1174 | error ( |
1175 | "The 'print-object' command requires an argument (an Objective-C object)"); | |
b81654f1 MS |
1176 | |
1177 | { | |
4d01a485 | 1178 | expression_up expr = parse_expression (args); |
b81654f1 MS |
1179 | int pc = 0; |
1180 | ||
4b27a620 | 1181 | object = evaluate_subexp (builtin_type (expr->gdbarch)->builtin_data_ptr, |
4d01a485 | 1182 | expr.get (), &pc, EVAL_NORMAL); |
b81654f1 MS |
1183 | } |
1184 | ||
36e53c63 AF |
1185 | /* Validate the address for sanity. */ |
1186 | object_addr = value_as_long (object); | |
1187 | read_memory (object_addr, &c, 1); | |
1188 | ||
3e3b026f | 1189 | function = find_function_in_inferior ("_NSPrintForDebugger", NULL); |
36e53c63 | 1190 | if (function == NULL) |
8a3fe4f8 | 1191 | error (_("Unable to locate _NSPrintForDebugger in child process")); |
b81654f1 | 1192 | |
7022349d | 1193 | description = call_function_by_hand (function, NULL, 1, &object); |
b81654f1 | 1194 | |
7248f48e AF |
1195 | string_addr = value_as_long (description); |
1196 | if (string_addr == 0) | |
8a3fe4f8 | 1197 | error (_("object returns null description")); |
b81654f1 MS |
1198 | |
1199 | read_memory (string_addr + i++, &c, 1); | |
22a44745 | 1200 | if (c != 0) |
b81654f1 | 1201 | do |
d2e6263c | 1202 | { /* Read and print characters up to EOS. */ |
b81654f1 MS |
1203 | QUIT; |
1204 | printf_filtered ("%c", c); | |
1205 | read_memory (string_addr + i++, &c, 1); | |
1206 | } while (c != 0); | |
1207 | else | |
a3f17187 | 1208 | printf_filtered(_("<object returns empty description>")); |
b81654f1 MS |
1209 | printf_filtered ("\n"); |
1210 | } | |
1211 | ||
d2e6263c MS |
1212 | /* The data structure 'methcalls' is used to detect method calls (thru |
1213 | * ObjC runtime lib functions objc_msgSend, objc_msgSendSuper, etc.), | |
0df8b418 | 1214 | * and ultimately find the method being called. |
b81654f1 MS |
1215 | */ |
1216 | ||
1217 | struct objc_methcall { | |
a121b7c1 | 1218 | const char *name; |
d2e6263c | 1219 | /* Return instance method to be called. */ |
36e53c63 | 1220 | int (*stop_at) (CORE_ADDR, CORE_ADDR *); |
d2e6263c MS |
1221 | /* Start of pc range corresponding to method invocation. */ |
1222 | CORE_ADDR begin; | |
1223 | /* End of pc range corresponding to method invocation. */ | |
1224 | CORE_ADDR end; | |
b81654f1 MS |
1225 | }; |
1226 | ||
d2e6263c MS |
1227 | static int resolve_msgsend (CORE_ADDR pc, CORE_ADDR *new_pc); |
1228 | static int resolve_msgsend_stret (CORE_ADDR pc, CORE_ADDR *new_pc); | |
1229 | static int resolve_msgsend_super (CORE_ADDR pc, CORE_ADDR *new_pc); | |
1230 | static int resolve_msgsend_super_stret (CORE_ADDR pc, CORE_ADDR *new_pc); | |
b81654f1 MS |
1231 | |
1232 | static struct objc_methcall methcalls[] = { | |
1233 | { "_objc_msgSend", resolve_msgsend, 0, 0}, | |
1234 | { "_objc_msgSend_stret", resolve_msgsend_stret, 0, 0}, | |
1235 | { "_objc_msgSendSuper", resolve_msgsend_super, 0, 0}, | |
1236 | { "_objc_msgSendSuper_stret", resolve_msgsend_super_stret, 0, 0}, | |
1237 | { "_objc_getClass", NULL, 0, 0}, | |
1238 | { "_objc_getMetaClass", NULL, 0, 0} | |
1239 | }; | |
1240 | ||
1241 | #define nmethcalls (sizeof (methcalls) / sizeof (methcalls[0])) | |
1242 | ||
d2e6263c MS |
1243 | /* The following function, "find_objc_msgsend", fills in the data |
1244 | * structure "objc_msgs" by finding the addresses of each of the | |
1245 | * (currently four) functions that it holds (of which objc_msgSend is | |
1246 | * the first). This must be called each time symbols are loaded, in | |
0df8b418 | 1247 | * case the functions have moved for some reason. |
b81654f1 MS |
1248 | */ |
1249 | ||
b9362cc7 | 1250 | static void |
b81654f1 MS |
1251 | find_objc_msgsend (void) |
1252 | { | |
1253 | unsigned int i; | |
b81654f1 | 1254 | |
5cc80db3 MS |
1255 | for (i = 0; i < nmethcalls; i++) |
1256 | { | |
50e65b17 | 1257 | struct bound_minimal_symbol func; |
b81654f1 | 1258 | |
5cc80db3 | 1259 | /* Try both with and without underscore. */ |
50e65b17 TT |
1260 | func = lookup_bound_minimal_symbol (methcalls[i].name); |
1261 | if ((func.minsym == NULL) && (methcalls[i].name[0] == '_')) | |
5cc80db3 | 1262 | { |
50e65b17 | 1263 | func = lookup_bound_minimal_symbol (methcalls[i].name + 1); |
5cc80db3 | 1264 | } |
50e65b17 | 1265 | if (func.minsym == NULL) |
5cc80db3 MS |
1266 | { |
1267 | methcalls[i].begin = 0; | |
1268 | methcalls[i].end = 0; | |
1269 | continue; | |
1270 | } | |
1271 | ||
77e371c0 | 1272 | methcalls[i].begin = BMSYMBOL_VALUE_ADDRESS (func); |
50e65b17 | 1273 | methcalls[i].end = minimal_symbol_upper_bound (func); |
b81654f1 | 1274 | } |
b81654f1 MS |
1275 | } |
1276 | ||
1277 | /* find_objc_msgcall (replaces pc_off_limits) | |
1278 | * | |
d2e6263c MS |
1279 | * ALL that this function now does is to determine whether the input |
1280 | * address ("pc") is the address of one of the Objective-C message | |
b81654f1 MS |
1281 | * dispatch functions (mainly objc_msgSend or objc_msgSendSuper), and |
1282 | * if so, it returns the address of the method that will be called. | |
1283 | * | |
1284 | * The old function "pc_off_limits" used to do a lot of other things | |
d2e6263c | 1285 | * in addition, such as detecting shared library jump stubs and |
b81654f1 | 1286 | * returning the address of the shlib function that would be called. |
e76f05fa | 1287 | * That functionality has been moved into the gdbarch_skip_trampoline_code and |
d2e6263c | 1288 | * IN_SOLIB_TRAMPOLINE macros, which are resolved in the target- |
0df8b418 | 1289 | * dependent modules. |
b81654f1 MS |
1290 | */ |
1291 | ||
b9362cc7 | 1292 | static int |
36e53c63 | 1293 | find_objc_msgcall_submethod (int (*f) (CORE_ADDR, CORE_ADDR *), |
d2e6263c MS |
1294 | CORE_ADDR pc, |
1295 | CORE_ADDR *new_pc) | |
b81654f1 | 1296 | { |
bf469271 PA |
1297 | TRY |
1298 | { | |
1299 | if (f (pc, new_pc) == 0) | |
1300 | return 1; | |
1301 | } | |
1302 | CATCH (ex, RETURN_MASK_ALL) | |
1303 | { | |
1304 | exception_fprintf (gdb_stderr, ex, | |
1305 | "Unable to determine target of " | |
1306 | "Objective-C method call (ignoring):\n"); | |
1307 | } | |
1308 | END_CATCH | |
1309 | ||
1310 | return 0; | |
b81654f1 MS |
1311 | } |
1312 | ||
1313 | int | |
1314 | find_objc_msgcall (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1315 | { | |
1316 | unsigned int i; | |
1317 | ||
1318 | find_objc_msgsend (); | |
5e488a7b AC |
1319 | if (new_pc != NULL) |
1320 | { | |
1321 | *new_pc = 0; | |
1322 | } | |
b81654f1 | 1323 | |
d2e6263c MS |
1324 | for (i = 0; i < nmethcalls; i++) |
1325 | if ((pc >= methcalls[i].begin) && (pc < methcalls[i].end)) | |
1326 | { | |
1327 | if (methcalls[i].stop_at != NULL) | |
1328 | return find_objc_msgcall_submethod (methcalls[i].stop_at, | |
1329 | pc, new_pc); | |
1330 | else | |
1331 | return 0; | |
b81654f1 | 1332 | } |
d2e6263c | 1333 | |
b81654f1 MS |
1334 | return 0; |
1335 | } | |
1336 | ||
1337 | void | |
1338 | _initialize_objc_language (void) | |
1339 | { | |
11db9430 | 1340 | add_info ("selectors", info_selectors_command, |
1bedd215 | 1341 | _("All Objective-C selectors, or those matching REGEXP.")); |
11db9430 | 1342 | add_info ("classes", info_classes_command, |
1bedd215 | 1343 | _("All Objective-C classes, or those matching REGEXP.")); |
b81654f1 | 1344 | add_com ("print-object", class_vars, print_object_command, |
1bedd215 | 1345 | _("Ask an Objective-C object to print itself.")); |
b81654f1 MS |
1346 | add_com_alias ("po", "print-object", class_vars, 1); |
1347 | } | |
1348 | ||
b81654f1 | 1349 | static void |
e17a4113 UW |
1350 | read_objc_method (struct gdbarch *gdbarch, CORE_ADDR addr, |
1351 | struct objc_method *method) | |
b81654f1 | 1352 | { |
e17a4113 | 1353 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1354 | |
e17a4113 UW |
1355 | method->name = read_memory_unsigned_integer (addr + 0, 4, byte_order); |
1356 | method->types = read_memory_unsigned_integer (addr + 4, 4, byte_order); | |
1357 | method->imp = read_memory_unsigned_integer (addr + 8, 4, byte_order); | |
b81654f1 MS |
1358 | } |
1359 | ||
e17a4113 UW |
1360 | static unsigned long |
1361 | read_objc_methlist_nmethods (struct gdbarch *gdbarch, CORE_ADDR addr) | |
b81654f1 | 1362 | { |
e17a4113 | 1363 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1364 | |
e17a4113 | 1365 | return read_memory_unsigned_integer (addr + 4, 4, byte_order); |
b81654f1 MS |
1366 | } |
1367 | ||
1368 | static void | |
e17a4113 UW |
1369 | read_objc_methlist_method (struct gdbarch *gdbarch, CORE_ADDR addr, |
1370 | unsigned long num, struct objc_method *method) | |
b81654f1 | 1371 | { |
e17a4113 UW |
1372 | gdb_assert (num < read_objc_methlist_nmethods (gdbarch, addr)); |
1373 | read_objc_method (gdbarch, addr + 8 + (12 * num), method); | |
b81654f1 MS |
1374 | } |
1375 | ||
1376 | static void | |
e17a4113 UW |
1377 | read_objc_object (struct gdbarch *gdbarch, CORE_ADDR addr, |
1378 | struct objc_object *object) | |
b81654f1 | 1379 | { |
e17a4113 | 1380 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1381 | |
e17a4113 | 1382 | object->isa = read_memory_unsigned_integer (addr, 4, byte_order); |
b81654f1 MS |
1383 | } |
1384 | ||
1385 | static void | |
e17a4113 UW |
1386 | read_objc_super (struct gdbarch *gdbarch, CORE_ADDR addr, |
1387 | struct objc_super *super) | |
b81654f1 | 1388 | { |
e17a4113 | 1389 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1390 | |
e17a4113 | 1391 | super->receiver = read_memory_unsigned_integer (addr, 4, byte_order); |
fe978cb0 | 1392 | super->theclass = read_memory_unsigned_integer (addr + 4, 4, byte_order); |
b81654f1 MS |
1393 | }; |
1394 | ||
1395 | static void | |
e17a4113 | 1396 | read_objc_class (struct gdbarch *gdbarch, CORE_ADDR addr, |
fe978cb0 | 1397 | struct objc_class *theclass) |
b81654f1 | 1398 | { |
e17a4113 | 1399 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1400 | |
fe978cb0 PA |
1401 | theclass->isa = read_memory_unsigned_integer (addr, 4, byte_order); |
1402 | theclass->super_class = read_memory_unsigned_integer (addr + 4, 4, byte_order); | |
1403 | theclass->name = read_memory_unsigned_integer (addr + 8, 4, byte_order); | |
1404 | theclass->version = read_memory_unsigned_integer (addr + 12, 4, byte_order); | |
1405 | theclass->info = read_memory_unsigned_integer (addr + 16, 4, byte_order); | |
1406 | theclass->instance_size = read_memory_unsigned_integer (addr + 18, 4, | |
0df8b418 | 1407 | byte_order); |
fe978cb0 PA |
1408 | theclass->ivars = read_memory_unsigned_integer (addr + 24, 4, byte_order); |
1409 | theclass->methods = read_memory_unsigned_integer (addr + 28, 4, byte_order); | |
1410 | theclass->cache = read_memory_unsigned_integer (addr + 32, 4, byte_order); | |
1411 | theclass->protocols = read_memory_unsigned_integer (addr + 36, 4, byte_order); | |
b81654f1 MS |
1412 | } |
1413 | ||
b9362cc7 | 1414 | static CORE_ADDR |
e17a4113 | 1415 | find_implementation_from_class (struct gdbarch *gdbarch, |
fe978cb0 | 1416 | CORE_ADDR theclass, CORE_ADDR sel) |
b81654f1 | 1417 | { |
e17a4113 | 1418 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
fe978cb0 | 1419 | CORE_ADDR subclass = theclass; |
b81654f1 | 1420 | |
d2e6263c MS |
1421 | while (subclass != 0) |
1422 | { | |
b81654f1 | 1423 | |
d2e6263c MS |
1424 | struct objc_class class_str; |
1425 | unsigned mlistnum = 0; | |
b81654f1 | 1426 | |
e17a4113 | 1427 | read_objc_class (gdbarch, subclass, &class_str); |
b81654f1 | 1428 | |
d2e6263c MS |
1429 | for (;;) |
1430 | { | |
1431 | CORE_ADDR mlist; | |
1432 | unsigned long nmethods; | |
1433 | unsigned long i; | |
b81654f1 | 1434 | |
d2e6263c | 1435 | mlist = read_memory_unsigned_integer (class_str.methods + |
e17a4113 UW |
1436 | (4 * mlistnum), |
1437 | 4, byte_order); | |
d2e6263c MS |
1438 | if (mlist == 0) |
1439 | break; | |
b81654f1 | 1440 | |
e17a4113 | 1441 | nmethods = read_objc_methlist_nmethods (gdbarch, mlist); |
b81654f1 | 1442 | |
d2e6263c MS |
1443 | for (i = 0; i < nmethods; i++) |
1444 | { | |
1445 | struct objc_method meth_str; | |
b81654f1 | 1446 | |
5cc80db3 | 1447 | read_objc_methlist_method (gdbarch, mlist, i, &meth_str); |
b81654f1 | 1448 | |
d2e6263c | 1449 | if (meth_str.name == sel) |
1abf022c | 1450 | /* FIXME: hppa arch was doing a pointer dereference |
0df8b418 | 1451 | here. There needs to be a better way to do that. */ |
1abf022c | 1452 | return meth_str.imp; |
d2e6263c MS |
1453 | } |
1454 | mlistnum++; | |
b81654f1 | 1455 | } |
d2e6263c | 1456 | subclass = class_str.super_class; |
b81654f1 | 1457 | } |
b81654f1 MS |
1458 | |
1459 | return 0; | |
1460 | } | |
1461 | ||
b9362cc7 | 1462 | static CORE_ADDR |
e17a4113 UW |
1463 | find_implementation (struct gdbarch *gdbarch, |
1464 | CORE_ADDR object, CORE_ADDR sel) | |
b81654f1 MS |
1465 | { |
1466 | struct objc_object ostr; | |
1467 | ||
d2e6263c MS |
1468 | if (object == 0) |
1469 | return 0; | |
e17a4113 | 1470 | read_objc_object (gdbarch, object, &ostr); |
d2e6263c MS |
1471 | if (ostr.isa == 0) |
1472 | return 0; | |
b81654f1 | 1473 | |
e17a4113 | 1474 | return find_implementation_from_class (gdbarch, ostr.isa, sel); |
b81654f1 MS |
1475 | } |
1476 | ||
1477 | static int | |
1478 | resolve_msgsend (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1479 | { | |
5ed92fa8 UW |
1480 | struct frame_info *frame = get_current_frame (); |
1481 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1482 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1483 | ||
b81654f1 MS |
1484 | CORE_ADDR object; |
1485 | CORE_ADDR sel; | |
1486 | CORE_ADDR res; | |
1487 | ||
5ed92fa8 UW |
1488 | object = gdbarch_fetch_pointer_argument (gdbarch, frame, 0, ptr_type); |
1489 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); | |
b81654f1 | 1490 | |
e17a4113 | 1491 | res = find_implementation (gdbarch, object, sel); |
d2e6263c MS |
1492 | if (new_pc != 0) |
1493 | *new_pc = res; | |
1494 | if (res == 0) | |
1495 | return 1; | |
b81654f1 MS |
1496 | return 0; |
1497 | } | |
1498 | ||
1499 | static int | |
1500 | resolve_msgsend_stret (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1501 | { | |
5ed92fa8 UW |
1502 | struct frame_info *frame = get_current_frame (); |
1503 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1504 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1505 | ||
b81654f1 MS |
1506 | CORE_ADDR object; |
1507 | CORE_ADDR sel; | |
1508 | CORE_ADDR res; | |
1509 | ||
5ed92fa8 UW |
1510 | object = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); |
1511 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 2, ptr_type); | |
b81654f1 | 1512 | |
e17a4113 | 1513 | res = find_implementation (gdbarch, object, sel); |
d2e6263c MS |
1514 | if (new_pc != 0) |
1515 | *new_pc = res; | |
1516 | if (res == 0) | |
1517 | return 1; | |
b81654f1 MS |
1518 | return 0; |
1519 | } | |
1520 | ||
1521 | static int | |
1522 | resolve_msgsend_super (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1523 | { | |
5ed92fa8 UW |
1524 | struct frame_info *frame = get_current_frame (); |
1525 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1526 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1527 | ||
b81654f1 MS |
1528 | struct objc_super sstr; |
1529 | ||
1530 | CORE_ADDR super; | |
1531 | CORE_ADDR sel; | |
1532 | CORE_ADDR res; | |
1533 | ||
5ed92fa8 UW |
1534 | super = gdbarch_fetch_pointer_argument (gdbarch, frame, 0, ptr_type); |
1535 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); | |
b81654f1 | 1536 | |
e17a4113 | 1537 | read_objc_super (gdbarch, super, &sstr); |
fe978cb0 | 1538 | if (sstr.theclass == 0) |
d2e6263c | 1539 | return 0; |
b81654f1 | 1540 | |
fe978cb0 | 1541 | res = find_implementation_from_class (gdbarch, sstr.theclass, sel); |
d2e6263c MS |
1542 | if (new_pc != 0) |
1543 | *new_pc = res; | |
1544 | if (res == 0) | |
1545 | return 1; | |
b81654f1 MS |
1546 | return 0; |
1547 | } | |
1548 | ||
1549 | static int | |
1550 | resolve_msgsend_super_stret (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1551 | { | |
5ed92fa8 UW |
1552 | struct frame_info *frame = get_current_frame (); |
1553 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1554 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1555 | ||
b81654f1 MS |
1556 | struct objc_super sstr; |
1557 | ||
1558 | CORE_ADDR super; | |
1559 | CORE_ADDR sel; | |
1560 | CORE_ADDR res; | |
1561 | ||
5ed92fa8 UW |
1562 | super = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); |
1563 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 2, ptr_type); | |
b81654f1 | 1564 | |
e17a4113 | 1565 | read_objc_super (gdbarch, super, &sstr); |
fe978cb0 | 1566 | if (sstr.theclass == 0) |
d2e6263c | 1567 | return 0; |
b81654f1 | 1568 | |
fe978cb0 | 1569 | res = find_implementation_from_class (gdbarch, sstr.theclass, sel); |
d2e6263c MS |
1570 | if (new_pc != 0) |
1571 | *new_pc = res; | |
1572 | if (res == 0) | |
1573 | return 1; | |
b81654f1 MS |
1574 | return 0; |
1575 | } | |
57a9e6af PP |
1576 | |
1577 | void | |
1578 | _initialize_objc_lang (void) | |
1579 | { | |
1580 | objc_objfile_data = register_objfile_data (); | |
1581 | } |