Commit | Line | Data |
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d2e6263c | 1 | /* Objective-C language support routines for GDB, the GNU debugger. |
b81654f1 | 2 | |
28e7fd62 | 3 | Copyright (C) 2002-2013 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" | |
d2e6263c | 29 | #include "c-lang.h" |
b81654f1 | 30 | #include "objc-lang.h" |
60250e8b | 31 | #include "exceptions.h" |
b81654f1 MS |
32 | #include "complaints.h" |
33 | #include "value.h" | |
34 | #include "symfile.h" | |
35 | #include "objfiles.h" | |
7248f48e | 36 | #include "gdb_string.h" /* for strchr */ |
b81654f1 MS |
37 | #include "target.h" /* for target_has_execution */ |
38 | #include "gdbcore.h" | |
39 | #include "gdbcmd.h" | |
40 | #include "frame.h" | |
41 | #include "gdb_regex.h" | |
42 | #include "regcache.h" | |
fe898f56 | 43 | #include "block.h" |
04714b91 | 44 | #include "infcall.h" |
4e45ca2e | 45 | #include "valprint.h" |
e8f3fcdd | 46 | #include "gdb_assert.h" |
529480d0 | 47 | #include "cli/cli-utils.h" |
b81654f1 MS |
48 | |
49 | #include <ctype.h> | |
50 | ||
51 | struct objc_object { | |
52 | CORE_ADDR isa; | |
53 | }; | |
54 | ||
55 | struct objc_class { | |
56 | CORE_ADDR isa; | |
57 | CORE_ADDR super_class; | |
58 | CORE_ADDR name; | |
59 | long version; | |
60 | long info; | |
61 | long instance_size; | |
62 | CORE_ADDR ivars; | |
63 | CORE_ADDR methods; | |
64 | CORE_ADDR cache; | |
65 | CORE_ADDR protocols; | |
66 | }; | |
67 | ||
68 | struct objc_super { | |
69 | CORE_ADDR receiver; | |
70 | CORE_ADDR class; | |
71 | }; | |
72 | ||
73 | struct objc_method { | |
74 | CORE_ADDR name; | |
75 | CORE_ADDR types; | |
76 | CORE_ADDR imp; | |
77 | }; | |
78 | ||
57a9e6af PP |
79 | static const struct objfile_data *objc_objfile_data; |
80 | ||
d2e6263c MS |
81 | /* Lookup a structure type named "struct NAME", visible in lexical |
82 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
83 | suitably defined. */ | |
b81654f1 MS |
84 | |
85 | struct symbol * | |
270140bd | 86 | lookup_struct_typedef (char *name, const struct block *block, int noerr) |
b81654f1 | 87 | { |
f86f5ca3 | 88 | struct symbol *sym; |
b81654f1 | 89 | |
2570f2b7 | 90 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
b81654f1 MS |
91 | |
92 | if (sym == NULL) | |
93 | { | |
94 | if (noerr) | |
95 | return 0; | |
96 | else | |
8a3fe4f8 | 97 | error (_("No struct type named %s."), name); |
b81654f1 MS |
98 | } |
99 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
100 | { | |
101 | if (noerr) | |
102 | return 0; | |
103 | else | |
8a3fe4f8 | 104 | error (_("This context has class, union or enum %s, not a struct."), |
d2e6263c | 105 | name); |
b81654f1 MS |
106 | } |
107 | return sym; | |
108 | } | |
109 | ||
110 | CORE_ADDR | |
3b7538c0 | 111 | lookup_objc_class (struct gdbarch *gdbarch, char *classname) |
b81654f1 | 112 | { |
3b7538c0 | 113 | struct type *char_type = builtin_type (gdbarch)->builtin_char; |
b81654f1 MS |
114 | struct value * function, *classval; |
115 | ||
116 | if (! target_has_execution) | |
117 | { | |
d2e6263c | 118 | /* Can't call into inferior to lookup class. */ |
b81654f1 MS |
119 | return 0; |
120 | } | |
121 | ||
122 | if (lookup_minimal_symbol("objc_lookUpClass", 0, 0)) | |
3e3b026f | 123 | function = find_function_in_inferior("objc_lookUpClass", NULL); |
b81654f1 | 124 | else if (lookup_minimal_symbol ("objc_lookup_class", 0, 0)) |
3e3b026f | 125 | function = find_function_in_inferior("objc_lookup_class", NULL); |
b81654f1 MS |
126 | else |
127 | { | |
0df8b418 MS |
128 | complaint (&symfile_complaints, |
129 | _("no way to lookup Objective-C classes")); | |
b81654f1 MS |
130 | return 0; |
131 | } | |
132 | ||
3b7538c0 | 133 | classval = value_string (classname, strlen (classname) + 1, char_type); |
b81654f1 MS |
134 | classval = value_coerce_array (classval); |
135 | return (CORE_ADDR) value_as_long (call_function_by_hand (function, | |
136 | 1, &classval)); | |
137 | } | |
138 | ||
c253954e | 139 | CORE_ADDR |
3b7538c0 | 140 | lookup_child_selector (struct gdbarch *gdbarch, char *selname) |
b81654f1 | 141 | { |
3b7538c0 | 142 | struct type *char_type = builtin_type (gdbarch)->builtin_char; |
b81654f1 MS |
143 | struct value * function, *selstring; |
144 | ||
145 | if (! target_has_execution) | |
146 | { | |
d2e6263c | 147 | /* Can't call into inferior to lookup selector. */ |
b81654f1 MS |
148 | return 0; |
149 | } | |
150 | ||
151 | if (lookup_minimal_symbol("sel_getUid", 0, 0)) | |
3e3b026f | 152 | function = find_function_in_inferior("sel_getUid", NULL); |
b81654f1 | 153 | else if (lookup_minimal_symbol ("sel_get_any_uid", 0, 0)) |
3e3b026f | 154 | function = find_function_in_inferior("sel_get_any_uid", NULL); |
b81654f1 MS |
155 | else |
156 | { | |
0df8b418 MS |
157 | complaint (&symfile_complaints, |
158 | _("no way to lookup Objective-C selectors")); | |
b81654f1 MS |
159 | return 0; |
160 | } | |
161 | ||
d2e6263c | 162 | selstring = value_coerce_array (value_string (selname, |
0df8b418 MS |
163 | strlen (selname) + 1, |
164 | char_type)); | |
b81654f1 MS |
165 | return value_as_long (call_function_by_hand (function, 1, &selstring)); |
166 | } | |
167 | ||
168 | struct value * | |
3b7538c0 | 169 | value_nsstring (struct gdbarch *gdbarch, char *ptr, int len) |
b81654f1 | 170 | { |
3b7538c0 | 171 | struct type *char_type = builtin_type (gdbarch)->builtin_char; |
b81654f1 MS |
172 | struct value *stringValue[3]; |
173 | struct value *function, *nsstringValue; | |
174 | struct symbol *sym; | |
175 | struct type *type; | |
176 | ||
177 | if (!target_has_execution) | |
d2e6263c | 178 | return 0; /* Can't call into inferior to create NSString. */ |
b81654f1 | 179 | |
3b7538c0 | 180 | stringValue[2] = value_string(ptr, len, char_type); |
b81654f1 | 181 | stringValue[2] = value_coerce_array(stringValue[2]); |
d2e6263c | 182 | /* _NSNewStringFromCString replaces "istr" after Lantern2A. */ |
b81654f1 MS |
183 | if (lookup_minimal_symbol("_NSNewStringFromCString", 0, 0)) |
184 | { | |
3b7538c0 | 185 | function = find_function_in_inferior("_NSNewStringFromCString", NULL); |
b81654f1 MS |
186 | nsstringValue = call_function_by_hand(function, 1, &stringValue[2]); |
187 | } | |
188 | else if (lookup_minimal_symbol("istr", 0, 0)) | |
189 | { | |
3b7538c0 | 190 | function = find_function_in_inferior("istr", NULL); |
b81654f1 MS |
191 | nsstringValue = call_function_by_hand(function, 1, &stringValue[2]); |
192 | } | |
193 | else if (lookup_minimal_symbol("+[NSString stringWithCString:]", 0, 0)) | |
194 | { | |
3e3b026f | 195 | function |
3b7538c0 UW |
196 | = find_function_in_inferior("+[NSString stringWithCString:]", NULL); |
197 | type = builtin_type (gdbarch)->builtin_long; | |
3e3b026f | 198 | |
b81654f1 | 199 | stringValue[0] = value_from_longest |
3b7538c0 | 200 | (type, lookup_objc_class (gdbarch, "NSString")); |
b81654f1 | 201 | stringValue[1] = value_from_longest |
3b7538c0 | 202 | (type, lookup_child_selector (gdbarch, "stringWithCString:")); |
b81654f1 MS |
203 | nsstringValue = call_function_by_hand(function, 3, &stringValue[0]); |
204 | } | |
205 | else | |
8a3fe4f8 | 206 | error (_("NSString: internal error -- no way to create new NSString")); |
b81654f1 | 207 | |
3e3b026f UW |
208 | sym = lookup_struct_typedef("NSString", 0, 1); |
209 | if (sym == NULL) | |
210 | sym = lookup_struct_typedef("NXString", 0, 1); | |
211 | if (sym == NULL) | |
212 | type = builtin_type (gdbarch)->builtin_data_ptr; | |
213 | else | |
214 | type = lookup_pointer_type(SYMBOL_TYPE (sym)); | |
215 | ||
04624583 | 216 | deprecated_set_value_type (nsstringValue, type); |
b81654f1 MS |
217 | return nsstringValue; |
218 | } | |
219 | ||
d2e6263c | 220 | /* Objective-C name demangling. */ |
b81654f1 MS |
221 | |
222 | char * | |
9a3d7dfd | 223 | objc_demangle (const char *mangled, int options) |
b81654f1 MS |
224 | { |
225 | char *demangled, *cp; | |
226 | ||
227 | if (mangled[0] == '_' && | |
228 | (mangled[1] == 'i' || mangled[1] == 'c') && | |
229 | mangled[2] == '_') | |
230 | { | |
231 | cp = demangled = xmalloc(strlen(mangled) + 2); | |
232 | ||
233 | if (mangled[1] == 'i') | |
234 | *cp++ = '-'; /* for instance method */ | |
235 | else | |
236 | *cp++ = '+'; /* for class method */ | |
237 | ||
238 | *cp++ = '['; /* opening left brace */ | |
0df8b418 | 239 | strcpy(cp, mangled+3); /* Tack on the rest of the mangled name. */ |
b81654f1 MS |
240 | |
241 | while (*cp && *cp == '_') | |
0df8b418 MS |
242 | cp++; /* Skip any initial underbars in class |
243 | name. */ | |
b81654f1 | 244 | |
7248f48e | 245 | cp = strchr(cp, '_'); |
0df8b418 | 246 | if (!cp) /* Find first non-initial underbar. */ |
b81654f1 | 247 | { |
7248f48e | 248 | xfree(demangled); /* not mangled name */ |
b81654f1 MS |
249 | return NULL; |
250 | } | |
0df8b418 | 251 | if (cp[1] == '_') /* Easy case: no category name. */ |
5cc80db3 | 252 | { |
0df8b418 | 253 | *cp++ = ' '; /* Replace two '_' with one ' '. */ |
5cc80db3 MS |
254 | strcpy(cp, mangled + (cp - demangled) + 2); |
255 | } | |
256 | else | |
257 | { | |
0df8b418 | 258 | *cp++ = '('; /* Less easy case: category name. */ |
5cc80db3 MS |
259 | cp = strchr(cp, '_'); |
260 | if (!cp) | |
261 | { | |
262 | xfree(demangled); /* not mangled name */ | |
263 | return NULL; | |
264 | } | |
265 | *cp++ = ')'; | |
0df8b418 MS |
266 | *cp++ = ' '; /* Overwriting 1st char of method name... */ |
267 | strcpy(cp, mangled + (cp - demangled)); /* Get it back. */ | |
5cc80db3 | 268 | } |
b81654f1 MS |
269 | |
270 | while (*cp && *cp == '_') | |
0df8b418 MS |
271 | cp++; /* Skip any initial underbars in |
272 | method name. */ | |
b81654f1 MS |
273 | |
274 | for (; *cp; cp++) | |
275 | if (*cp == '_') | |
0df8b418 | 276 | *cp = ':'; /* Replace remaining '_' with ':'. */ |
b81654f1 MS |
277 | |
278 | *cp++ = ']'; /* closing right brace */ | |
279 | *cp++ = 0; /* string terminator */ | |
280 | return demangled; | |
281 | } | |
282 | else | |
d2e6263c | 283 | return NULL; /* Not an objc mangled name. */ |
b81654f1 MS |
284 | } |
285 | ||
f636b87d AF |
286 | /* Determine if we are currently in the Objective-C dispatch function. |
287 | If so, get the address of the method function that the dispatcher | |
0df8b418 | 288 | would call and use that as the function to step into instead. Also |
f636b87d AF |
289 | skip over the trampoline for the function (if any). This is better |
290 | for the user since they are only interested in stepping into the | |
291 | method function anyway. */ | |
292 | static CORE_ADDR | |
52f729a7 | 293 | objc_skip_trampoline (struct frame_info *frame, CORE_ADDR stop_pc) |
f636b87d | 294 | { |
d80b854b | 295 | struct gdbarch *gdbarch = get_frame_arch (frame); |
f636b87d AF |
296 | CORE_ADDR real_stop_pc; |
297 | CORE_ADDR method_stop_pc; | |
298 | ||
d80b854b | 299 | real_stop_pc = gdbarch_skip_trampoline_code (gdbarch, frame, stop_pc); |
f636b87d AF |
300 | |
301 | if (real_stop_pc != 0) | |
302 | find_objc_msgcall (real_stop_pc, &method_stop_pc); | |
303 | else | |
304 | find_objc_msgcall (stop_pc, &method_stop_pc); | |
305 | ||
306 | if (method_stop_pc) | |
307 | { | |
e76f05fa | 308 | real_stop_pc = gdbarch_skip_trampoline_code |
d80b854b | 309 | (gdbarch, frame, method_stop_pc); |
f636b87d AF |
310 | if (real_stop_pc == 0) |
311 | real_stop_pc = method_stop_pc; | |
312 | } | |
313 | ||
314 | return real_stop_pc; | |
315 | } | |
316 | ||
b81654f1 MS |
317 | |
318 | /* Table mapping opcodes into strings for printing operators | |
319 | and precedences of the operators. */ | |
320 | ||
321 | static const struct op_print objc_op_print_tab[] = | |
322 | { | |
323 | {",", BINOP_COMMA, PREC_COMMA, 0}, | |
324 | {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, | |
325 | {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, | |
326 | {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, | |
327 | {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0}, | |
328 | {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0}, | |
329 | {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0}, | |
330 | {"==", BINOP_EQUAL, PREC_EQUAL, 0}, | |
331 | {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0}, | |
332 | {"<=", BINOP_LEQ, PREC_ORDER, 0}, | |
333 | {">=", BINOP_GEQ, PREC_ORDER, 0}, | |
334 | {">", BINOP_GTR, PREC_ORDER, 0}, | |
335 | {"<", BINOP_LESS, PREC_ORDER, 0}, | |
336 | {">>", BINOP_RSH, PREC_SHIFT, 0}, | |
337 | {"<<", BINOP_LSH, PREC_SHIFT, 0}, | |
338 | {"+", BINOP_ADD, PREC_ADD, 0}, | |
339 | {"-", BINOP_SUB, PREC_ADD, 0}, | |
340 | {"*", BINOP_MUL, PREC_MUL, 0}, | |
341 | {"/", BINOP_DIV, PREC_MUL, 0}, | |
342 | {"%", BINOP_REM, PREC_MUL, 0}, | |
343 | {"@", BINOP_REPEAT, PREC_REPEAT, 0}, | |
344 | {"-", UNOP_NEG, PREC_PREFIX, 0}, | |
345 | {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, | |
346 | {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0}, | |
347 | {"*", UNOP_IND, PREC_PREFIX, 0}, | |
348 | {"&", UNOP_ADDR, PREC_PREFIX, 0}, | |
349 | {"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0}, | |
350 | {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0}, | |
351 | {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0}, | |
e8f3fcdd | 352 | {NULL, OP_NULL, PREC_NULL, 0} |
b81654f1 MS |
353 | }; |
354 | ||
b81654f1 | 355 | const struct language_defn objc_language_defn = { |
d2e6263c | 356 | "objective-c", /* Language name */ |
b81654f1 | 357 | language_objc, |
b81654f1 | 358 | range_check_off, |
b81654f1 | 359 | case_sensitive_on, |
7ca2d3a3 | 360 | array_row_major, |
9a044a89 | 361 | macro_expansion_c, |
5f9769d1 | 362 | &exp_descriptor_standard, |
f2e8016f TT |
363 | c_parse, |
364 | c_error, | |
e85c3284 | 365 | null_post_parser, |
8a808554 TT |
366 | c_printchar, /* Print a character constant */ |
367 | c_printstr, /* Function to print string constant */ | |
368 | c_emit_char, | |
b81654f1 | 369 | c_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 370 | c_print_typedef, /* Print a typedef using appropriate syntax */ |
b81654f1 MS |
371 | c_val_print, /* Print a value using appropriate syntax */ |
372 | c_value_print, /* Print a top-level value */ | |
a5ee536b | 373 | default_read_var_value, /* la_read_var_value */ |
f636b87d | 374 | objc_skip_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 375 | "self", /* name_of_this */ |
5f9a71c3 | 376 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 377 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 378 | objc_demangle, /* Language specific symbol demangler */ |
0df8b418 MS |
379 | NULL, /* Language specific |
380 | class_name_from_physname */ | |
d2e6263c MS |
381 | objc_op_print_tab, /* Expression operators for printing */ |
382 | 1, /* C-style arrays */ | |
b81654f1 | 383 | 0, /* String lower bound */ |
6084f43a | 384 | default_word_break_characters, |
41d27058 | 385 | default_make_symbol_completion_list, |
cad351d1 | 386 | c_language_arch_info, |
e79af960 | 387 | default_print_array_index, |
41f1b697 | 388 | default_pass_by_reference, |
ae6a3a4c | 389 | default_get_string, |
1a119f36 | 390 | NULL, /* la_get_symbol_name_cmp */ |
f8eba3c6 | 391 | iterate_over_symbols, |
b81654f1 MS |
392 | LANG_MAGIC |
393 | }; | |
394 | ||
395 | /* | |
396 | * ObjC: | |
0df8b418 | 397 | * Following functions help construct Objective-C message calls. |
b81654f1 MS |
398 | */ |
399 | ||
d2e6263c | 400 | struct selname /* For parsing Objective-C. */ |
b81654f1 MS |
401 | { |
402 | struct selname *next; | |
403 | char *msglist_sel; | |
404 | int msglist_len; | |
405 | }; | |
406 | ||
407 | static int msglist_len; | |
408 | static struct selname *selname_chain; | |
409 | static char *msglist_sel; | |
410 | ||
411 | void | |
412 | start_msglist(void) | |
413 | { | |
f86f5ca3 | 414 | struct selname *new = |
b81654f1 MS |
415 | (struct selname *) xmalloc (sizeof (struct selname)); |
416 | ||
417 | new->next = selname_chain; | |
418 | new->msglist_len = msglist_len; | |
419 | new->msglist_sel = msglist_sel; | |
420 | msglist_len = 0; | |
421 | msglist_sel = (char *)xmalloc(1); | |
422 | *msglist_sel = 0; | |
423 | selname_chain = new; | |
424 | } | |
425 | ||
426 | void | |
427 | add_msglist(struct stoken *str, int addcolon) | |
428 | { | |
429 | char *s, *p; | |
430 | int len, plen; | |
431 | ||
5cc80db3 MS |
432 | if (str == 0) /* Unnamed arg, or... */ |
433 | { | |
434 | if (addcolon == 0) /* variable number of args. */ | |
435 | { | |
436 | msglist_len++; | |
437 | return; | |
438 | } | |
439 | p = ""; | |
440 | plen = 0; | |
441 | } | |
442 | else | |
443 | { | |
444 | p = str->ptr; | |
445 | plen = str->length; | |
b81654f1 | 446 | } |
b81654f1 MS |
447 | len = plen + strlen(msglist_sel) + 2; |
448 | s = (char *)xmalloc(len); | |
449 | strcpy(s, msglist_sel); | |
450 | strncat(s, p, plen); | |
7248f48e | 451 | xfree(msglist_sel); |
b81654f1 | 452 | msglist_sel = s; |
5cc80db3 MS |
453 | if (addcolon) |
454 | { | |
455 | s[len-2] = ':'; | |
456 | s[len-1] = 0; | |
457 | msglist_len++; | |
458 | } | |
459 | else | |
b81654f1 MS |
460 | s[len-2] = '\0'; |
461 | } | |
462 | ||
463 | int | |
464 | end_msglist(void) | |
465 | { | |
f86f5ca3 PH |
466 | int val = msglist_len; |
467 | struct selname *sel = selname_chain; | |
468 | char *p = msglist_sel; | |
c253954e | 469 | CORE_ADDR selid; |
b81654f1 MS |
470 | |
471 | selname_chain = sel->next; | |
472 | msglist_len = sel->msglist_len; | |
473 | msglist_sel = sel->msglist_sel; | |
3b7538c0 | 474 | selid = lookup_child_selector (parse_gdbarch, p); |
b81654f1 | 475 | if (!selid) |
8a3fe4f8 | 476 | error (_("Can't find selector \"%s\""), p); |
b81654f1 | 477 | write_exp_elt_longcst (selid); |
7248f48e | 478 | xfree(p); |
d2e6263c | 479 | write_exp_elt_longcst (val); /* Number of args */ |
7248f48e | 480 | xfree(sel); |
b81654f1 MS |
481 | |
482 | return val; | |
483 | } | |
484 | ||
485 | /* | |
0d5cff50 | 486 | * Function: specialcmp (const char *a, const char *b) |
b81654f1 MS |
487 | * |
488 | * Special strcmp: treats ']' and ' ' as end-of-string. | |
d2e6263c | 489 | * Used for qsorting lists of objc methods (either by class or selector). |
b81654f1 MS |
490 | */ |
491 | ||
b9362cc7 | 492 | static int |
0d5cff50 | 493 | specialcmp (const char *a, const char *b) |
b81654f1 MS |
494 | { |
495 | while (*a && *a != ' ' && *a != ']' && *b && *b != ' ' && *b != ']') | |
496 | { | |
497 | if (*a != *b) | |
498 | return *a - *b; | |
499 | a++, b++; | |
500 | } | |
501 | if (*a && *a != ' ' && *a != ']') | |
0df8b418 | 502 | return 1; /* a is longer therefore greater. */ |
b81654f1 | 503 | if (*b && *b != ' ' && *b != ']') |
0df8b418 MS |
504 | return -1; /* a is shorter therefore lesser. */ |
505 | return 0; /* a and b are identical. */ | |
b81654f1 MS |
506 | } |
507 | ||
508 | /* | |
36e53c63 | 509 | * Function: compare_selectors (const void *, const void *) |
b81654f1 | 510 | * |
d2e6263c MS |
511 | * Comparison function for use with qsort. Arguments are symbols or |
512 | * msymbols Compares selector part of objc method name alphabetically. | |
b81654f1 MS |
513 | */ |
514 | ||
515 | static int | |
36e53c63 | 516 | compare_selectors (const void *a, const void *b) |
b81654f1 | 517 | { |
0d5cff50 | 518 | const char *aname, *bname; |
b81654f1 | 519 | |
de5ad195 DC |
520 | aname = SYMBOL_PRINT_NAME (*(struct symbol **) a); |
521 | bname = SYMBOL_PRINT_NAME (*(struct symbol **) b); | |
7248f48e | 522 | if (aname == NULL || bname == NULL) |
8a3fe4f8 | 523 | error (_("internal: compare_selectors(1)")); |
b81654f1 | 524 | |
7248f48e AF |
525 | aname = strchr(aname, ' '); |
526 | bname = strchr(bname, ' '); | |
527 | if (aname == NULL || bname == NULL) | |
8a3fe4f8 | 528 | error (_("internal: compare_selectors(2)")); |
b81654f1 MS |
529 | |
530 | return specialcmp (aname+1, bname+1); | |
531 | } | |
532 | ||
533 | /* | |
534 | * Function: selectors_info (regexp, from_tty) | |
535 | * | |
d2e6263c MS |
536 | * Implements the "Info selectors" command. Takes an optional regexp |
537 | * arg. Lists all objective c selectors that match the regexp. Works | |
538 | * by grepping thru all symbols for objective c methods. Output list | |
539 | * is sorted and uniqued. | |
b81654f1 MS |
540 | */ |
541 | ||
542 | static void | |
543 | selectors_info (char *regexp, int from_tty) | |
544 | { | |
545 | struct objfile *objfile; | |
546 | struct minimal_symbol *msymbol; | |
0d5cff50 | 547 | const char *name; |
b81654f1 MS |
548 | char *val; |
549 | int matches = 0; | |
550 | int maxlen = 0; | |
551 | int ix; | |
552 | char myregexp[2048]; | |
553 | char asel[256]; | |
554 | struct symbol **sym_arr; | |
555 | int plusminus = 0; | |
556 | ||
557 | if (regexp == NULL) | |
d2e6263c | 558 | strcpy(myregexp, ".*]"); /* Null input, match all objc methods. */ |
b81654f1 MS |
559 | else |
560 | { | |
d2e6263c MS |
561 | if (*regexp == '+' || *regexp == '-') |
562 | { /* User wants only class methods or only instance methods. */ | |
b81654f1 MS |
563 | plusminus = *regexp++; |
564 | while (*regexp == ' ' || *regexp == '\t') | |
565 | regexp++; | |
566 | } | |
567 | if (*regexp == '\0') | |
568 | strcpy(myregexp, ".*]"); | |
569 | else | |
570 | { | |
a9dc8dcc | 571 | /* Allow a few extra bytes because of the strcat below. */ |
28288541 | 572 | if (sizeof (myregexp) < strlen (regexp) + 4) |
20937029 JK |
573 | error (_("Regexp is too long: %s"), regexp); |
574 | strcpy(myregexp, regexp); | |
b81654f1 MS |
575 | if (myregexp[strlen(myregexp) - 1] == '$') /* end of selector */ |
576 | myregexp[strlen(myregexp) - 1] = ']'; /* end of method name */ | |
577 | else | |
578 | strcat(myregexp, ".*]"); | |
579 | } | |
580 | } | |
581 | ||
582 | if (regexp != NULL) | |
5e488a7b AC |
583 | { |
584 | val = re_comp (myregexp); | |
585 | if (val != 0) | |
8a3fe4f8 | 586 | error (_("Invalid regexp (%s): %s"), val, regexp); |
5e488a7b | 587 | } |
b81654f1 | 588 | |
d2e6263c | 589 | /* First time thru is JUST to get max length and count. */ |
b81654f1 MS |
590 | ALL_MSYMBOLS (objfile, msymbol) |
591 | { | |
592 | QUIT; | |
36018d2e | 593 | name = SYMBOL_NATURAL_NAME (msymbol); |
3e6ef9e4 JB |
594 | if (name |
595 | && (name[0] == '-' || name[0] == '+') | |
596 | && name[1] == '[') /* Got a method name. */ | |
b81654f1 | 597 | { |
d2e6263c | 598 | /* Filter for class/instance methods. */ |
b81654f1 | 599 | if (plusminus && name[0] != plusminus) |
d2e6263c MS |
600 | continue; |
601 | /* Find selector part. */ | |
3e6ef9e4 | 602 | name = (char *) strchr (name+2, ' '); |
50412521 MS |
603 | if (name == NULL) |
604 | { | |
605 | complaint (&symfile_complaints, | |
606 | _("Bad method name '%s'"), | |
607 | SYMBOL_NATURAL_NAME (msymbol)); | |
608 | continue; | |
609 | } | |
b81654f1 MS |
610 | if (regexp == NULL || re_exec(++name) != 0) |
611 | { | |
0d5cff50 DE |
612 | const char *mystart = name; |
613 | const char *myend = strchr (mystart, ']'); | |
b81654f1 MS |
614 | |
615 | if (myend && (myend - mystart > maxlen)) | |
d2e6263c | 616 | maxlen = myend - mystart; /* Get longest selector. */ |
b81654f1 MS |
617 | matches++; |
618 | } | |
619 | } | |
620 | } | |
621 | if (matches) | |
622 | { | |
a3f17187 | 623 | printf_filtered (_("Selectors matching \"%s\":\n\n"), |
b81654f1 MS |
624 | regexp ? regexp : "*"); |
625 | ||
626 | sym_arr = alloca (matches * sizeof (struct symbol *)); | |
627 | matches = 0; | |
628 | ALL_MSYMBOLS (objfile, msymbol) | |
629 | { | |
630 | QUIT; | |
36018d2e | 631 | name = SYMBOL_NATURAL_NAME (msymbol); |
b81654f1 MS |
632 | if (name && |
633 | (name[0] == '-' || name[0] == '+') && | |
d2e6263c | 634 | name[1] == '[') /* Got a method name. */ |
b81654f1 | 635 | { |
d2e6263c | 636 | /* Filter for class/instance methods. */ |
b81654f1 | 637 | if (plusminus && name[0] != plusminus) |
d2e6263c MS |
638 | continue; |
639 | /* Find selector part. */ | |
640 | name = (char *) strchr(name+2, ' '); | |
b81654f1 MS |
641 | if (regexp == NULL || re_exec(++name) != 0) |
642 | sym_arr[matches++] = (struct symbol *) msymbol; | |
643 | } | |
644 | } | |
645 | ||
646 | qsort (sym_arr, matches, sizeof (struct minimal_symbol *), | |
647 | compare_selectors); | |
d2e6263c MS |
648 | /* Prevent compare on first iteration. */ |
649 | asel[0] = 0; | |
650 | for (ix = 0; ix < matches; ix++) /* Now do the output. */ | |
b81654f1 MS |
651 | { |
652 | char *p = asel; | |
653 | ||
654 | QUIT; | |
36018d2e | 655 | name = SYMBOL_NATURAL_NAME (sym_arr[ix]); |
b81654f1 MS |
656 | name = strchr (name, ' ') + 1; |
657 | if (p[0] && specialcmp(name, p) == 0) | |
d2e6263c | 658 | continue; /* Seen this one already (not unique). */ |
b81654f1 | 659 | |
d2e6263c MS |
660 | /* Copy selector part. */ |
661 | while (*name && *name != ']') | |
b81654f1 MS |
662 | *p++ = *name++; |
663 | *p++ = '\0'; | |
d2e6263c MS |
664 | /* Print in columns. */ |
665 | puts_filtered_tabular(asel, maxlen + 1, 0); | |
b81654f1 MS |
666 | } |
667 | begin_line(); | |
668 | } | |
669 | else | |
0df8b418 MS |
670 | printf_filtered (_("No selectors matching \"%s\"\n"), |
671 | regexp ? regexp : "*"); | |
b81654f1 MS |
672 | } |
673 | ||
674 | /* | |
36e53c63 | 675 | * Function: compare_classes (const void *, const void *) |
b81654f1 | 676 | * |
d2e6263c MS |
677 | * Comparison function for use with qsort. Arguments are symbols or |
678 | * msymbols Compares class part of objc method name alphabetically. | |
b81654f1 MS |
679 | */ |
680 | ||
681 | static int | |
36e53c63 | 682 | compare_classes (const void *a, const void *b) |
b81654f1 | 683 | { |
0d5cff50 | 684 | const char *aname, *bname; |
b81654f1 | 685 | |
de5ad195 DC |
686 | aname = SYMBOL_PRINT_NAME (*(struct symbol **) a); |
687 | bname = SYMBOL_PRINT_NAME (*(struct symbol **) b); | |
7248f48e | 688 | if (aname == NULL || bname == NULL) |
8a3fe4f8 | 689 | error (_("internal: compare_classes(1)")); |
b81654f1 MS |
690 | |
691 | return specialcmp (aname+1, bname+1); | |
692 | } | |
693 | ||
694 | /* | |
695 | * Function: classes_info(regexp, from_tty) | |
696 | * | |
697 | * Implements the "info classes" command for objective c classes. | |
698 | * Lists all objective c classes that match the optional regexp. | |
d2e6263c MS |
699 | * Works by grepping thru the list of objective c methods. List will |
700 | * be sorted and uniqued (since one class may have many methods). | |
701 | * BUGS: will not list a class that has no methods. | |
b81654f1 MS |
702 | */ |
703 | ||
704 | static void | |
705 | classes_info (char *regexp, int from_tty) | |
706 | { | |
707 | struct objfile *objfile; | |
708 | struct minimal_symbol *msymbol; | |
0d5cff50 | 709 | const char *name; |
b81654f1 MS |
710 | char *val; |
711 | int matches = 0; | |
712 | int maxlen = 0; | |
713 | int ix; | |
714 | char myregexp[2048]; | |
715 | char aclass[256]; | |
716 | struct symbol **sym_arr; | |
717 | ||
718 | if (regexp == NULL) | |
d2e6263c | 719 | strcpy(myregexp, ".* "); /* Null input: match all objc classes. */ |
b81654f1 MS |
720 | else |
721 | { | |
a9dc8dcc | 722 | /* Allow a few extra bytes because of the strcat below. */ |
28288541 MS |
723 | if (sizeof (myregexp) < strlen (regexp) + 4) |
724 | error (_("Regexp is too long: %s"), regexp); | |
b81654f1 MS |
725 | strcpy(myregexp, regexp); |
726 | if (myregexp[strlen(myregexp) - 1] == '$') | |
d2e6263c | 727 | /* In the method name, the end of the class name is marked by ' '. */ |
b81654f1 MS |
728 | myregexp[strlen(myregexp) - 1] = ' '; |
729 | else | |
730 | strcat(myregexp, ".* "); | |
731 | } | |
732 | ||
733 | if (regexp != NULL) | |
5e488a7b AC |
734 | { |
735 | val = re_comp (myregexp); | |
736 | if (val != 0) | |
8a3fe4f8 | 737 | error (_("Invalid regexp (%s): %s"), val, regexp); |
5e488a7b | 738 | } |
b81654f1 | 739 | |
d2e6263c | 740 | /* First time thru is JUST to get max length and count. */ |
b81654f1 MS |
741 | ALL_MSYMBOLS (objfile, msymbol) |
742 | { | |
743 | QUIT; | |
36018d2e | 744 | name = SYMBOL_NATURAL_NAME (msymbol); |
b81654f1 MS |
745 | if (name && |
746 | (name[0] == '-' || name[0] == '+') && | |
d2e6263c | 747 | name[1] == '[') /* Got a method name. */ |
b81654f1 MS |
748 | if (regexp == NULL || re_exec(name+2) != 0) |
749 | { | |
d2e6263c | 750 | /* Compute length of classname part. */ |
0d5cff50 DE |
751 | const char *mystart = name + 2; |
752 | const char *myend = strchr (mystart, ' '); | |
b81654f1 MS |
753 | |
754 | if (myend && (myend - mystart > maxlen)) | |
755 | maxlen = myend - mystart; | |
756 | matches++; | |
757 | } | |
758 | } | |
759 | if (matches) | |
760 | { | |
a3f17187 | 761 | printf_filtered (_("Classes matching \"%s\":\n\n"), |
b81654f1 MS |
762 | regexp ? regexp : "*"); |
763 | sym_arr = alloca (matches * sizeof (struct symbol *)); | |
764 | matches = 0; | |
765 | ALL_MSYMBOLS (objfile, msymbol) | |
766 | { | |
767 | QUIT; | |
36018d2e | 768 | name = SYMBOL_NATURAL_NAME (msymbol); |
b81654f1 MS |
769 | if (name && |
770 | (name[0] == '-' || name[0] == '+') && | |
d2e6263c | 771 | name[1] == '[') /* Got a method name. */ |
b81654f1 MS |
772 | if (regexp == NULL || re_exec(name+2) != 0) |
773 | sym_arr[matches++] = (struct symbol *) msymbol; | |
774 | } | |
775 | ||
776 | qsort (sym_arr, matches, sizeof (struct minimal_symbol *), | |
777 | compare_classes); | |
d2e6263c MS |
778 | /* Prevent compare on first iteration. */ |
779 | aclass[0] = 0; | |
780 | for (ix = 0; ix < matches; ix++) /* Now do the output. */ | |
b81654f1 MS |
781 | { |
782 | char *p = aclass; | |
783 | ||
784 | QUIT; | |
36018d2e | 785 | name = SYMBOL_NATURAL_NAME (sym_arr[ix]); |
b81654f1 MS |
786 | name += 2; |
787 | if (p[0] && specialcmp(name, p) == 0) | |
d2e6263c | 788 | continue; /* Seen this one already (not unique). */ |
b81654f1 | 789 | |
d2e6263c MS |
790 | /* Copy class part of method name. */ |
791 | while (*name && *name != ' ') | |
b81654f1 MS |
792 | *p++ = *name++; |
793 | *p++ = '\0'; | |
d2e6263c MS |
794 | /* Print in columns. */ |
795 | puts_filtered_tabular(aclass, maxlen + 1, 0); | |
b81654f1 MS |
796 | } |
797 | begin_line(); | |
798 | } | |
799 | else | |
a3f17187 | 800 | printf_filtered (_("No classes matching \"%s\"\n"), regexp ? regexp : "*"); |
b81654f1 MS |
801 | } |
802 | ||
f8eba3c6 | 803 | static char * |
b81654f1 MS |
804 | parse_selector (char *method, char **selector) |
805 | { | |
806 | char *s1 = NULL; | |
807 | char *s2 = NULL; | |
808 | int found_quote = 0; | |
809 | ||
810 | char *nselector = NULL; | |
811 | ||
e8f3fcdd | 812 | gdb_assert (selector != NULL); |
b81654f1 MS |
813 | |
814 | s1 = method; | |
815 | ||
529480d0 | 816 | s1 = skip_spaces (s1); |
b81654f1 MS |
817 | if (*s1 == '\'') |
818 | { | |
819 | found_quote = 1; | |
820 | s1++; | |
821 | } | |
529480d0 | 822 | s1 = skip_spaces (s1); |
b81654f1 MS |
823 | |
824 | nselector = s1; | |
825 | s2 = s1; | |
826 | ||
5cc80db3 MS |
827 | for (;;) |
828 | { | |
829 | if (isalnum (*s2) || (*s2 == '_') || (*s2 == ':')) | |
830 | *s1++ = *s2; | |
831 | else if (isspace (*s2)) | |
832 | ; | |
833 | else if ((*s2 == '\0') || (*s2 == '\'')) | |
834 | break; | |
835 | else | |
836 | return NULL; | |
837 | s2++; | |
838 | } | |
b81654f1 MS |
839 | *s1++ = '\0'; |
840 | ||
529480d0 | 841 | s2 = skip_spaces (s2); |
b81654f1 MS |
842 | if (found_quote) |
843 | { | |
844 | if (*s2 == '\'') | |
845 | s2++; | |
529480d0 | 846 | s2 = skip_spaces (s2); |
b81654f1 MS |
847 | } |
848 | ||
849 | if (selector != NULL) | |
850 | *selector = nselector; | |
851 | ||
852 | return s2; | |
853 | } | |
854 | ||
f8eba3c6 | 855 | static char * |
d2e6263c MS |
856 | parse_method (char *method, char *type, char **class, |
857 | char **category, char **selector) | |
b81654f1 MS |
858 | { |
859 | char *s1 = NULL; | |
860 | char *s2 = NULL; | |
861 | int found_quote = 0; | |
862 | ||
863 | char ntype = '\0'; | |
864 | char *nclass = NULL; | |
865 | char *ncategory = NULL; | |
866 | char *nselector = NULL; | |
867 | ||
e8f3fcdd AC |
868 | gdb_assert (type != NULL); |
869 | gdb_assert (class != NULL); | |
870 | gdb_assert (category != NULL); | |
871 | gdb_assert (selector != NULL); | |
b81654f1 MS |
872 | |
873 | s1 = method; | |
874 | ||
529480d0 | 875 | s1 = skip_spaces (s1); |
b81654f1 MS |
876 | if (*s1 == '\'') |
877 | { | |
878 | found_quote = 1; | |
879 | s1++; | |
880 | } | |
529480d0 | 881 | s1 = skip_spaces (s1); |
b81654f1 MS |
882 | |
883 | if ((s1[0] == '+') || (s1[0] == '-')) | |
884 | ntype = *s1++; | |
885 | ||
529480d0 | 886 | s1 = skip_spaces (s1); |
b81654f1 MS |
887 | |
888 | if (*s1 != '[') | |
889 | return NULL; | |
890 | s1++; | |
891 | ||
892 | nclass = s1; | |
893 | while (isalnum (*s1) || (*s1 == '_')) | |
894 | s1++; | |
895 | ||
896 | s2 = s1; | |
529480d0 | 897 | s2 = skip_spaces (s2); |
b81654f1 MS |
898 | |
899 | if (*s2 == '(') | |
900 | { | |
901 | s2++; | |
529480d0 | 902 | s2 = skip_spaces (s2); |
b81654f1 MS |
903 | ncategory = s2; |
904 | while (isalnum (*s2) || (*s2 == '_')) | |
905 | s2++; | |
906 | *s2++ = '\0'; | |
907 | } | |
908 | ||
d2e6263c | 909 | /* Truncate the class name now that we're not using the open paren. */ |
b81654f1 MS |
910 | *s1++ = '\0'; |
911 | ||
912 | nselector = s2; | |
913 | s1 = s2; | |
914 | ||
5cc80db3 MS |
915 | for (;;) |
916 | { | |
917 | if (isalnum (*s2) || (*s2 == '_') || (*s2 == ':')) | |
918 | *s1++ = *s2; | |
919 | else if (isspace (*s2)) | |
920 | ; | |
921 | else if (*s2 == ']') | |
922 | break; | |
923 | else | |
924 | return NULL; | |
925 | s2++; | |
926 | } | |
b81654f1 MS |
927 | *s1++ = '\0'; |
928 | s2++; | |
929 | ||
529480d0 | 930 | s2 = skip_spaces (s2); |
b81654f1 MS |
931 | if (found_quote) |
932 | { | |
933 | if (*s2 != '\'') | |
934 | return NULL; | |
935 | s2++; | |
529480d0 | 936 | s2 = skip_spaces (s2); |
b81654f1 MS |
937 | } |
938 | ||
939 | if (type != NULL) | |
940 | *type = ntype; | |
941 | if (class != NULL) | |
942 | *class = nclass; | |
943 | if (category != NULL) | |
944 | *category = ncategory; | |
945 | if (selector != NULL) | |
946 | *selector = nselector; | |
947 | ||
948 | return s2; | |
949 | } | |
950 | ||
2f9a90b4 | 951 | static void |
f8eba3c6 TT |
952 | find_methods (char type, const char *class, const char *category, |
953 | const char *selector, | |
954 | VEC (const_char_ptr) **symbol_names) | |
b81654f1 MS |
955 | { |
956 | struct objfile *objfile = NULL; | |
b81654f1 | 957 | |
0d5cff50 | 958 | const char *symname = NULL; |
b81654f1 MS |
959 | |
960 | char ntype = '\0'; | |
961 | char *nclass = NULL; | |
962 | char *ncategory = NULL; | |
963 | char *nselector = NULL; | |
964 | ||
b81654f1 MS |
965 | static char *tmp = NULL; |
966 | static unsigned int tmplen = 0; | |
967 | ||
f8eba3c6 | 968 | gdb_assert (symbol_names != NULL); |
b81654f1 | 969 | |
57a9e6af | 970 | ALL_OBJFILES (objfile) |
b81654f1 | 971 | { |
57a9e6af | 972 | unsigned int *objc_csym; |
f8eba3c6 | 973 | struct minimal_symbol *msymbol = NULL; |
b81654f1 | 974 | |
57a9e6af PP |
975 | /* The objfile_csym variable counts the number of ObjC methods |
976 | that this objfile defines. We save that count as a private | |
977 | objfile data. If we have already determined that this objfile | |
978 | provides no ObjC methods, we can skip it entirely. */ | |
b81654f1 | 979 | |
57a9e6af | 980 | unsigned int objfile_csym = 0; |
b81654f1 | 981 | |
57a9e6af PP |
982 | objc_csym = objfile_data (objfile, objc_objfile_data); |
983 | if (objc_csym != NULL && *objc_csym == 0) | |
984 | /* There are no ObjC symbols in this objfile. Skip it entirely. */ | |
b81654f1 MS |
985 | continue; |
986 | ||
57a9e6af | 987 | ALL_OBJFILE_MSYMBOLS (objfile, msymbol) |
b81654f1 | 988 | { |
57a9e6af | 989 | QUIT; |
b81654f1 | 990 | |
0c4b2e63 MF |
991 | /* Check the symbol name first as this can be done entirely without |
992 | sending any query to the target. */ | |
993 | symname = SYMBOL_NATURAL_NAME (msymbol); | |
994 | if (symname == NULL) | |
995 | continue; | |
996 | ||
997 | if ((symname[0] != '-' && symname[0] != '+') || (symname[1] != '[')) | |
998 | /* Not a method name. */ | |
999 | continue; | |
1000 | ||
8dfd1e6d KS |
1001 | objfile_csym++; |
1002 | ||
0c4b2e63 | 1003 | /* Now that thinks are a bit sane, clean up the symname. */ |
57a9e6af PP |
1004 | while ((strlen (symname) + 1) >= tmplen) |
1005 | { | |
1006 | tmplen = (tmplen == 0) ? 1024 : tmplen * 2; | |
1007 | tmp = xrealloc (tmp, tmplen); | |
1008 | } | |
1009 | strcpy (tmp, symname); | |
b81654f1 | 1010 | |
0df8b418 MS |
1011 | if (parse_method (tmp, &ntype, &nclass, |
1012 | &ncategory, &nselector) == NULL) | |
57a9e6af | 1013 | continue; |
b81654f1 | 1014 | |
57a9e6af PP |
1015 | if ((type != '\0') && (ntype != type)) |
1016 | continue; | |
b81654f1 | 1017 | |
57a9e6af PP |
1018 | if ((class != NULL) |
1019 | && ((nclass == NULL) || (strcmp (class, nclass) != 0))) | |
1020 | continue; | |
1021 | ||
1022 | if ((category != NULL) && | |
1023 | ((ncategory == NULL) || (strcmp (category, ncategory) != 0))) | |
1024 | continue; | |
b81654f1 | 1025 | |
57a9e6af PP |
1026 | if ((selector != NULL) && |
1027 | ((nselector == NULL) || (strcmp (selector, nselector) != 0))) | |
1028 | continue; | |
1029 | ||
f8eba3c6 | 1030 | VEC_safe_push (const_char_ptr, *symbol_names, symname); |
57a9e6af | 1031 | } |
f8eba3c6 | 1032 | |
57a9e6af | 1033 | if (objc_csym == NULL) |
b81654f1 | 1034 | { |
6342b74a PP |
1035 | objc_csym = obstack_alloc (&objfile->objfile_obstack, |
1036 | sizeof (*objc_csym)); | |
57a9e6af PP |
1037 | *objc_csym = objfile_csym; |
1038 | set_objfile_data (objfile, objc_objfile_data, objc_csym); | |
b81654f1 | 1039 | } |
57a9e6af PP |
1040 | else |
1041 | /* Count of ObjC methods in this objfile should be constant. */ | |
1042 | gdb_assert (*objc_csym == objfile_csym); | |
b81654f1 | 1043 | } |
f8eba3c6 | 1044 | } |
b81654f1 | 1045 | |
f8eba3c6 TT |
1046 | /* Uniquify a VEC of strings. */ |
1047 | ||
1048 | static void | |
1049 | uniquify_strings (VEC (const_char_ptr) **strings) | |
1050 | { | |
1051 | int ix; | |
1052 | const char *elem, *last = NULL; | |
1053 | int out; | |
1054 | ||
1055 | qsort (VEC_address (const_char_ptr, *strings), | |
1056 | VEC_length (const_char_ptr, *strings), | |
1057 | sizeof (const_char_ptr), | |
1058 | compare_strings); | |
1059 | out = 0; | |
1060 | for (ix = 0; VEC_iterate (const_char_ptr, *strings, ix, elem); ++ix) | |
1061 | { | |
1062 | if (last == NULL || strcmp (last, elem) != 0) | |
1063 | { | |
1064 | /* Keep ELEM. */ | |
1065 | VEC_replace (const_char_ptr, *strings, out, elem); | |
1066 | ++out; | |
1067 | } | |
1068 | last = elem; | |
1069 | } | |
1070 | VEC_truncate (const_char_ptr, *strings, out); | |
b81654f1 MS |
1071 | } |
1072 | ||
f8eba3c6 TT |
1073 | /* |
1074 | * Function: find_imps (char *selector, struct symbol **sym_arr) | |
1075 | * | |
1076 | * Input: a string representing a selector | |
1077 | * a pointer to an array of symbol pointers | |
1078 | * possibly a pointer to a symbol found by the caller. | |
1079 | * | |
1080 | * Output: number of methods that implement that selector. Side | |
1081 | * effects: The array of symbol pointers is filled with matching syms. | |
1082 | * | |
1083 | * By analogy with function "find_methods" (symtab.c), builds a list | |
1084 | * of symbols matching the ambiguous input, so that "decode_line_2" | |
1085 | * (symtab.c) can list them and ask the user to choose one or more. | |
1086 | * In this case the matches are objective c methods | |
1087 | * ("implementations") matching an objective c selector. | |
1088 | * | |
1089 | * Note that it is possible for a normal (c-style) function to have | |
1090 | * the same name as an objective c selector. To prevent the selector | |
1091 | * from eclipsing the function, we allow the caller (decode_line_1) to | |
1092 | * search for such a function first, and if it finds one, pass it in | |
1093 | * to us. We will then integrate it into the list. We also search | |
1094 | * for one here, among the minsyms. | |
1095 | * | |
1096 | * NOTE: if NUM_DEBUGGABLE is non-zero, the sym_arr will be divided | |
1097 | * into two parts: debuggable (struct symbol) syms, and | |
1098 | * non_debuggable (struct minimal_symbol) syms. The debuggable | |
1099 | * ones will come first, before NUM_DEBUGGABLE (which will thus | |
1100 | * be the index of the first non-debuggable one). | |
1101 | */ | |
1102 | ||
1103 | char * | |
1104 | find_imps (char *method, VEC (const_char_ptr) **symbol_names) | |
b81654f1 MS |
1105 | { |
1106 | char type = '\0'; | |
1107 | char *class = NULL; | |
1108 | char *category = NULL; | |
1109 | char *selector = NULL; | |
1110 | ||
b81654f1 MS |
1111 | char *buf = NULL; |
1112 | char *tmp = NULL; | |
1113 | ||
f8eba3c6 | 1114 | int selector_case = 0; |
b81654f1 | 1115 | |
f8eba3c6 | 1116 | gdb_assert (symbol_names != NULL); |
b81654f1 MS |
1117 | |
1118 | buf = (char *) alloca (strlen (method) + 1); | |
1119 | strcpy (buf, method); | |
1120 | tmp = parse_method (buf, &type, &class, &category, &selector); | |
1121 | ||
5cc80db3 MS |
1122 | if (tmp == NULL) |
1123 | { | |
5cc80db3 MS |
1124 | strcpy (buf, method); |
1125 | tmp = parse_selector (buf, &selector); | |
b81654f1 | 1126 | |
5cc80db3 MS |
1127 | if (tmp == NULL) |
1128 | return NULL; | |
1129 | ||
f8eba3c6 | 1130 | selector_case = 1; |
5cc80db3 | 1131 | } |
b81654f1 | 1132 | |
f8eba3c6 | 1133 | find_methods (type, class, category, selector, symbol_names); |
b81654f1 | 1134 | |
f8eba3c6 TT |
1135 | /* If we hit the "selector" case, and we found some methods, then |
1136 | add the selector itself as a symbol, if it exists. */ | |
1137 | if (selector_case && !VEC_empty (const_char_ptr, *symbol_names)) | |
b81654f1 | 1138 | { |
f8eba3c6 TT |
1139 | struct symbol *sym = lookup_symbol (selector, NULL, VAR_DOMAIN, 0); |
1140 | ||
1141 | if (sym != NULL) | |
1142 | VEC_safe_push (const_char_ptr, *symbol_names, | |
1143 | SYMBOL_NATURAL_NAME (sym)); | |
1144 | else | |
b81654f1 | 1145 | { |
f8eba3c6 TT |
1146 | struct minimal_symbol *msym = lookup_minimal_symbol (selector, 0, 0); |
1147 | ||
1148 | if (msym != NULL) | |
1149 | VEC_safe_push (const_char_ptr, *symbol_names, | |
1150 | SYMBOL_NATURAL_NAME (msym)); | |
b81654f1 MS |
1151 | } |
1152 | } | |
1153 | ||
f8eba3c6 | 1154 | uniquify_strings (symbol_names); |
b81654f1 MS |
1155 | |
1156 | return method + (tmp - buf); | |
1157 | } | |
1158 | ||
b9362cc7 | 1159 | static void |
b81654f1 MS |
1160 | print_object_command (char *args, int from_tty) |
1161 | { | |
1162 | struct value *object, *function, *description; | |
36e53c63 | 1163 | CORE_ADDR string_addr, object_addr; |
b81654f1 | 1164 | int i = 0; |
22a44745 | 1165 | gdb_byte c = 0; |
b81654f1 MS |
1166 | |
1167 | if (!args || !*args) | |
d2e6263c MS |
1168 | error ( |
1169 | "The 'print-object' command requires an argument (an Objective-C object)"); | |
b81654f1 MS |
1170 | |
1171 | { | |
1172 | struct expression *expr = parse_expression (args); | |
f86f5ca3 | 1173 | struct cleanup *old_chain = |
d2e6263c | 1174 | make_cleanup (free_current_contents, &expr); |
b81654f1 MS |
1175 | int pc = 0; |
1176 | ||
4b27a620 JB |
1177 | object = evaluate_subexp (builtin_type (expr->gdbarch)->builtin_data_ptr, |
1178 | expr, &pc, EVAL_NORMAL); | |
b81654f1 MS |
1179 | do_cleanups (old_chain); |
1180 | } | |
1181 | ||
36e53c63 AF |
1182 | /* Validate the address for sanity. */ |
1183 | object_addr = value_as_long (object); | |
1184 | read_memory (object_addr, &c, 1); | |
1185 | ||
3e3b026f | 1186 | function = find_function_in_inferior ("_NSPrintForDebugger", NULL); |
36e53c63 | 1187 | if (function == NULL) |
8a3fe4f8 | 1188 | error (_("Unable to locate _NSPrintForDebugger in child process")); |
b81654f1 MS |
1189 | |
1190 | description = call_function_by_hand (function, 1, &object); | |
1191 | ||
7248f48e AF |
1192 | string_addr = value_as_long (description); |
1193 | if (string_addr == 0) | |
8a3fe4f8 | 1194 | error (_("object returns null description")); |
b81654f1 MS |
1195 | |
1196 | read_memory (string_addr + i++, &c, 1); | |
22a44745 | 1197 | if (c != 0) |
b81654f1 | 1198 | do |
d2e6263c | 1199 | { /* Read and print characters up to EOS. */ |
b81654f1 MS |
1200 | QUIT; |
1201 | printf_filtered ("%c", c); | |
1202 | read_memory (string_addr + i++, &c, 1); | |
1203 | } while (c != 0); | |
1204 | else | |
a3f17187 | 1205 | printf_filtered(_("<object returns empty description>")); |
b81654f1 MS |
1206 | printf_filtered ("\n"); |
1207 | } | |
1208 | ||
d2e6263c MS |
1209 | /* The data structure 'methcalls' is used to detect method calls (thru |
1210 | * ObjC runtime lib functions objc_msgSend, objc_msgSendSuper, etc.), | |
0df8b418 | 1211 | * and ultimately find the method being called. |
b81654f1 MS |
1212 | */ |
1213 | ||
1214 | struct objc_methcall { | |
1215 | char *name; | |
d2e6263c | 1216 | /* Return instance method to be called. */ |
36e53c63 | 1217 | int (*stop_at) (CORE_ADDR, CORE_ADDR *); |
d2e6263c MS |
1218 | /* Start of pc range corresponding to method invocation. */ |
1219 | CORE_ADDR begin; | |
1220 | /* End of pc range corresponding to method invocation. */ | |
1221 | CORE_ADDR end; | |
b81654f1 MS |
1222 | }; |
1223 | ||
d2e6263c MS |
1224 | static int resolve_msgsend (CORE_ADDR pc, CORE_ADDR *new_pc); |
1225 | static int resolve_msgsend_stret (CORE_ADDR pc, CORE_ADDR *new_pc); | |
1226 | static int resolve_msgsend_super (CORE_ADDR pc, CORE_ADDR *new_pc); | |
1227 | static int resolve_msgsend_super_stret (CORE_ADDR pc, CORE_ADDR *new_pc); | |
b81654f1 MS |
1228 | |
1229 | static struct objc_methcall methcalls[] = { | |
1230 | { "_objc_msgSend", resolve_msgsend, 0, 0}, | |
1231 | { "_objc_msgSend_stret", resolve_msgsend_stret, 0, 0}, | |
1232 | { "_objc_msgSendSuper", resolve_msgsend_super, 0, 0}, | |
1233 | { "_objc_msgSendSuper_stret", resolve_msgsend_super_stret, 0, 0}, | |
1234 | { "_objc_getClass", NULL, 0, 0}, | |
1235 | { "_objc_getMetaClass", NULL, 0, 0} | |
1236 | }; | |
1237 | ||
1238 | #define nmethcalls (sizeof (methcalls) / sizeof (methcalls[0])) | |
1239 | ||
d2e6263c MS |
1240 | /* The following function, "find_objc_msgsend", fills in the data |
1241 | * structure "objc_msgs" by finding the addresses of each of the | |
1242 | * (currently four) functions that it holds (of which objc_msgSend is | |
1243 | * the first). This must be called each time symbols are loaded, in | |
0df8b418 | 1244 | * case the functions have moved for some reason. |
b81654f1 MS |
1245 | */ |
1246 | ||
b9362cc7 | 1247 | static void |
b81654f1 MS |
1248 | find_objc_msgsend (void) |
1249 | { | |
1250 | unsigned int i; | |
b81654f1 | 1251 | |
5cc80db3 MS |
1252 | for (i = 0; i < nmethcalls; i++) |
1253 | { | |
1254 | struct minimal_symbol *func; | |
b81654f1 | 1255 | |
5cc80db3 MS |
1256 | /* Try both with and without underscore. */ |
1257 | func = lookup_minimal_symbol (methcalls[i].name, NULL, NULL); | |
1258 | if ((func == NULL) && (methcalls[i].name[0] == '_')) | |
1259 | { | |
1260 | func = lookup_minimal_symbol (methcalls[i].name + 1, NULL, NULL); | |
1261 | } | |
1262 | if (func == NULL) | |
1263 | { | |
1264 | methcalls[i].begin = 0; | |
1265 | methcalls[i].end = 0; | |
1266 | continue; | |
1267 | } | |
1268 | ||
1269 | methcalls[i].begin = SYMBOL_VALUE_ADDRESS (func); | |
1270 | do { | |
1271 | methcalls[i].end = SYMBOL_VALUE_ADDRESS (++func); | |
1272 | } while (methcalls[i].begin == methcalls[i].end); | |
b81654f1 | 1273 | } |
b81654f1 MS |
1274 | } |
1275 | ||
1276 | /* find_objc_msgcall (replaces pc_off_limits) | |
1277 | * | |
d2e6263c MS |
1278 | * ALL that this function now does is to determine whether the input |
1279 | * address ("pc") is the address of one of the Objective-C message | |
b81654f1 MS |
1280 | * dispatch functions (mainly objc_msgSend or objc_msgSendSuper), and |
1281 | * if so, it returns the address of the method that will be called. | |
1282 | * | |
1283 | * The old function "pc_off_limits" used to do a lot of other things | |
d2e6263c | 1284 | * in addition, such as detecting shared library jump stubs and |
b81654f1 | 1285 | * returning the address of the shlib function that would be called. |
e76f05fa | 1286 | * That functionality has been moved into the gdbarch_skip_trampoline_code and |
d2e6263c | 1287 | * IN_SOLIB_TRAMPOLINE macros, which are resolved in the target- |
0df8b418 | 1288 | * dependent modules. |
b81654f1 MS |
1289 | */ |
1290 | ||
1291 | struct objc_submethod_helper_data { | |
36e53c63 | 1292 | int (*f) (CORE_ADDR, CORE_ADDR *); |
b81654f1 MS |
1293 | CORE_ADDR pc; |
1294 | CORE_ADDR *new_pc; | |
1295 | }; | |
1296 | ||
b9362cc7 | 1297 | static int |
7248f48e | 1298 | find_objc_msgcall_submethod_helper (void * arg) |
b81654f1 | 1299 | { |
d2e6263c MS |
1300 | struct objc_submethod_helper_data *s = |
1301 | (struct objc_submethod_helper_data *) arg; | |
1302 | ||
1303 | if (s->f (s->pc, s->new_pc) == 0) | |
b81654f1 | 1304 | return 1; |
d2e6263c | 1305 | else |
b81654f1 | 1306 | return 0; |
b81654f1 MS |
1307 | } |
1308 | ||
b9362cc7 | 1309 | static int |
36e53c63 | 1310 | find_objc_msgcall_submethod (int (*f) (CORE_ADDR, CORE_ADDR *), |
d2e6263c MS |
1311 | CORE_ADDR pc, |
1312 | CORE_ADDR *new_pc) | |
b81654f1 MS |
1313 | { |
1314 | struct objc_submethod_helper_data s; | |
1315 | ||
1316 | s.f = f; | |
1317 | s.pc = pc; | |
1318 | s.new_pc = new_pc; | |
1319 | ||
1320 | if (catch_errors (find_objc_msgcall_submethod_helper, | |
7248f48e | 1321 | (void *) &s, |
0df8b418 MS |
1322 | "Unable to determine target of " |
1323 | "Objective-C method call (ignoring):\n", | |
d2e6263c | 1324 | RETURN_MASK_ALL) == 0) |
b81654f1 | 1325 | return 1; |
d2e6263c | 1326 | else |
b81654f1 | 1327 | return 0; |
b81654f1 MS |
1328 | } |
1329 | ||
1330 | int | |
1331 | find_objc_msgcall (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1332 | { | |
1333 | unsigned int i; | |
1334 | ||
1335 | find_objc_msgsend (); | |
5e488a7b AC |
1336 | if (new_pc != NULL) |
1337 | { | |
1338 | *new_pc = 0; | |
1339 | } | |
b81654f1 | 1340 | |
d2e6263c MS |
1341 | for (i = 0; i < nmethcalls; i++) |
1342 | if ((pc >= methcalls[i].begin) && (pc < methcalls[i].end)) | |
1343 | { | |
1344 | if (methcalls[i].stop_at != NULL) | |
1345 | return find_objc_msgcall_submethod (methcalls[i].stop_at, | |
1346 | pc, new_pc); | |
1347 | else | |
1348 | return 0; | |
b81654f1 | 1349 | } |
d2e6263c | 1350 | |
b81654f1 MS |
1351 | return 0; |
1352 | } | |
1353 | ||
0df8b418 MS |
1354 | /* -Wmissing-prototypes */ |
1355 | extern initialize_file_ftype _initialize_objc_language; | |
b9362cc7 | 1356 | |
b81654f1 MS |
1357 | void |
1358 | _initialize_objc_language (void) | |
1359 | { | |
1360 | add_language (&objc_language_defn); | |
d2e6263c | 1361 | add_info ("selectors", selectors_info, /* INFO SELECTORS command. */ |
1bedd215 | 1362 | _("All Objective-C selectors, or those matching REGEXP.")); |
d2e6263c | 1363 | add_info ("classes", classes_info, /* INFO CLASSES command. */ |
1bedd215 | 1364 | _("All Objective-C classes, or those matching REGEXP.")); |
b81654f1 | 1365 | add_com ("print-object", class_vars, print_object_command, |
1bedd215 | 1366 | _("Ask an Objective-C object to print itself.")); |
b81654f1 MS |
1367 | add_com_alias ("po", "print-object", class_vars, 1); |
1368 | } | |
1369 | ||
b81654f1 | 1370 | static void |
e17a4113 UW |
1371 | read_objc_method (struct gdbarch *gdbarch, CORE_ADDR addr, |
1372 | struct objc_method *method) | |
b81654f1 | 1373 | { |
e17a4113 | 1374 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1375 | |
e17a4113 UW |
1376 | method->name = read_memory_unsigned_integer (addr + 0, 4, byte_order); |
1377 | method->types = read_memory_unsigned_integer (addr + 4, 4, byte_order); | |
1378 | method->imp = read_memory_unsigned_integer (addr + 8, 4, byte_order); | |
b81654f1 MS |
1379 | } |
1380 | ||
e17a4113 UW |
1381 | static unsigned long |
1382 | read_objc_methlist_nmethods (struct gdbarch *gdbarch, CORE_ADDR addr) | |
b81654f1 | 1383 | { |
e17a4113 | 1384 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1385 | |
e17a4113 | 1386 | return read_memory_unsigned_integer (addr + 4, 4, byte_order); |
b81654f1 MS |
1387 | } |
1388 | ||
1389 | static void | |
e17a4113 UW |
1390 | read_objc_methlist_method (struct gdbarch *gdbarch, CORE_ADDR addr, |
1391 | unsigned long num, struct objc_method *method) | |
b81654f1 | 1392 | { |
e17a4113 UW |
1393 | gdb_assert (num < read_objc_methlist_nmethods (gdbarch, addr)); |
1394 | read_objc_method (gdbarch, addr + 8 + (12 * num), method); | |
b81654f1 MS |
1395 | } |
1396 | ||
1397 | static void | |
e17a4113 UW |
1398 | read_objc_object (struct gdbarch *gdbarch, CORE_ADDR addr, |
1399 | struct objc_object *object) | |
b81654f1 | 1400 | { |
e17a4113 | 1401 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1402 | |
e17a4113 | 1403 | object->isa = read_memory_unsigned_integer (addr, 4, byte_order); |
b81654f1 MS |
1404 | } |
1405 | ||
1406 | static void | |
e17a4113 UW |
1407 | read_objc_super (struct gdbarch *gdbarch, CORE_ADDR addr, |
1408 | struct objc_super *super) | |
b81654f1 | 1409 | { |
e17a4113 | 1410 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1411 | |
e17a4113 UW |
1412 | super->receiver = read_memory_unsigned_integer (addr, 4, byte_order); |
1413 | super->class = read_memory_unsigned_integer (addr + 4, 4, byte_order); | |
b81654f1 MS |
1414 | }; |
1415 | ||
1416 | static void | |
e17a4113 UW |
1417 | read_objc_class (struct gdbarch *gdbarch, CORE_ADDR addr, |
1418 | struct objc_class *class) | |
b81654f1 | 1419 | { |
e17a4113 | 1420 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
5cc80db3 | 1421 | |
e17a4113 UW |
1422 | class->isa = read_memory_unsigned_integer (addr, 4, byte_order); |
1423 | class->super_class = read_memory_unsigned_integer (addr + 4, 4, byte_order); | |
1424 | class->name = read_memory_unsigned_integer (addr + 8, 4, byte_order); | |
1425 | class->version = read_memory_unsigned_integer (addr + 12, 4, byte_order); | |
1426 | class->info = read_memory_unsigned_integer (addr + 16, 4, byte_order); | |
0df8b418 MS |
1427 | class->instance_size = read_memory_unsigned_integer (addr + 18, 4, |
1428 | byte_order); | |
e17a4113 UW |
1429 | class->ivars = read_memory_unsigned_integer (addr + 24, 4, byte_order); |
1430 | class->methods = read_memory_unsigned_integer (addr + 28, 4, byte_order); | |
1431 | class->cache = read_memory_unsigned_integer (addr + 32, 4, byte_order); | |
1432 | class->protocols = read_memory_unsigned_integer (addr + 36, 4, byte_order); | |
b81654f1 MS |
1433 | } |
1434 | ||
b9362cc7 | 1435 | static CORE_ADDR |
e17a4113 UW |
1436 | find_implementation_from_class (struct gdbarch *gdbarch, |
1437 | CORE_ADDR class, CORE_ADDR sel) | |
b81654f1 | 1438 | { |
e17a4113 | 1439 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
b81654f1 MS |
1440 | CORE_ADDR subclass = class; |
1441 | ||
d2e6263c MS |
1442 | while (subclass != 0) |
1443 | { | |
b81654f1 | 1444 | |
d2e6263c MS |
1445 | struct objc_class class_str; |
1446 | unsigned mlistnum = 0; | |
b81654f1 | 1447 | |
e17a4113 | 1448 | read_objc_class (gdbarch, subclass, &class_str); |
b81654f1 | 1449 | |
d2e6263c MS |
1450 | for (;;) |
1451 | { | |
1452 | CORE_ADDR mlist; | |
1453 | unsigned long nmethods; | |
1454 | unsigned long i; | |
b81654f1 | 1455 | |
d2e6263c | 1456 | mlist = read_memory_unsigned_integer (class_str.methods + |
e17a4113 UW |
1457 | (4 * mlistnum), |
1458 | 4, byte_order); | |
d2e6263c MS |
1459 | if (mlist == 0) |
1460 | break; | |
b81654f1 | 1461 | |
e17a4113 | 1462 | nmethods = read_objc_methlist_nmethods (gdbarch, mlist); |
b81654f1 | 1463 | |
d2e6263c MS |
1464 | for (i = 0; i < nmethods; i++) |
1465 | { | |
1466 | struct objc_method meth_str; | |
b81654f1 | 1467 | |
5cc80db3 | 1468 | read_objc_methlist_method (gdbarch, mlist, i, &meth_str); |
b81654f1 | 1469 | #if 0 |
d2e6263c MS |
1470 | fprintf (stderr, |
1471 | "checking method 0x%lx against selector 0x%lx\n", | |
1472 | meth_str.name, sel); | |
b81654f1 MS |
1473 | #endif |
1474 | ||
d2e6263c | 1475 | if (meth_str.name == sel) |
1abf022c | 1476 | /* FIXME: hppa arch was doing a pointer dereference |
0df8b418 | 1477 | here. There needs to be a better way to do that. */ |
1abf022c | 1478 | return meth_str.imp; |
d2e6263c MS |
1479 | } |
1480 | mlistnum++; | |
b81654f1 | 1481 | } |
d2e6263c | 1482 | subclass = class_str.super_class; |
b81654f1 | 1483 | } |
b81654f1 MS |
1484 | |
1485 | return 0; | |
1486 | } | |
1487 | ||
b9362cc7 | 1488 | static CORE_ADDR |
e17a4113 UW |
1489 | find_implementation (struct gdbarch *gdbarch, |
1490 | CORE_ADDR object, CORE_ADDR sel) | |
b81654f1 MS |
1491 | { |
1492 | struct objc_object ostr; | |
1493 | ||
d2e6263c MS |
1494 | if (object == 0) |
1495 | return 0; | |
e17a4113 | 1496 | read_objc_object (gdbarch, object, &ostr); |
d2e6263c MS |
1497 | if (ostr.isa == 0) |
1498 | return 0; | |
b81654f1 | 1499 | |
e17a4113 | 1500 | return find_implementation_from_class (gdbarch, ostr.isa, sel); |
b81654f1 MS |
1501 | } |
1502 | ||
1503 | static int | |
1504 | resolve_msgsend (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1505 | { | |
5ed92fa8 UW |
1506 | struct frame_info *frame = get_current_frame (); |
1507 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1508 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1509 | ||
b81654f1 MS |
1510 | CORE_ADDR object; |
1511 | CORE_ADDR sel; | |
1512 | CORE_ADDR res; | |
1513 | ||
5ed92fa8 UW |
1514 | object = gdbarch_fetch_pointer_argument (gdbarch, frame, 0, ptr_type); |
1515 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); | |
b81654f1 | 1516 | |
e17a4113 | 1517 | res = find_implementation (gdbarch, object, sel); |
d2e6263c MS |
1518 | if (new_pc != 0) |
1519 | *new_pc = res; | |
1520 | if (res == 0) | |
1521 | return 1; | |
b81654f1 MS |
1522 | return 0; |
1523 | } | |
1524 | ||
1525 | static int | |
1526 | resolve_msgsend_stret (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1527 | { | |
5ed92fa8 UW |
1528 | struct frame_info *frame = get_current_frame (); |
1529 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1530 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1531 | ||
b81654f1 MS |
1532 | CORE_ADDR object; |
1533 | CORE_ADDR sel; | |
1534 | CORE_ADDR res; | |
1535 | ||
5ed92fa8 UW |
1536 | object = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); |
1537 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 2, ptr_type); | |
b81654f1 | 1538 | |
e17a4113 | 1539 | res = find_implementation (gdbarch, object, sel); |
d2e6263c MS |
1540 | if (new_pc != 0) |
1541 | *new_pc = res; | |
1542 | if (res == 0) | |
1543 | return 1; | |
b81654f1 MS |
1544 | return 0; |
1545 | } | |
1546 | ||
1547 | static int | |
1548 | resolve_msgsend_super (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1549 | { | |
5ed92fa8 UW |
1550 | struct frame_info *frame = get_current_frame (); |
1551 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1552 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1553 | ||
b81654f1 MS |
1554 | struct objc_super sstr; |
1555 | ||
1556 | CORE_ADDR super; | |
1557 | CORE_ADDR sel; | |
1558 | CORE_ADDR res; | |
1559 | ||
5ed92fa8 UW |
1560 | super = gdbarch_fetch_pointer_argument (gdbarch, frame, 0, ptr_type); |
1561 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); | |
b81654f1 | 1562 | |
e17a4113 | 1563 | read_objc_super (gdbarch, super, &sstr); |
d2e6263c MS |
1564 | if (sstr.class == 0) |
1565 | return 0; | |
b81654f1 | 1566 | |
e17a4113 | 1567 | res = find_implementation_from_class (gdbarch, sstr.class, sel); |
d2e6263c MS |
1568 | if (new_pc != 0) |
1569 | *new_pc = res; | |
1570 | if (res == 0) | |
1571 | return 1; | |
b81654f1 MS |
1572 | return 0; |
1573 | } | |
1574 | ||
1575 | static int | |
1576 | resolve_msgsend_super_stret (CORE_ADDR pc, CORE_ADDR *new_pc) | |
1577 | { | |
5ed92fa8 UW |
1578 | struct frame_info *frame = get_current_frame (); |
1579 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1580 | struct type *ptr_type = builtin_type (gdbarch)->builtin_func_ptr; | |
1581 | ||
b81654f1 MS |
1582 | struct objc_super sstr; |
1583 | ||
1584 | CORE_ADDR super; | |
1585 | CORE_ADDR sel; | |
1586 | CORE_ADDR res; | |
1587 | ||
5ed92fa8 UW |
1588 | super = gdbarch_fetch_pointer_argument (gdbarch, frame, 1, ptr_type); |
1589 | sel = gdbarch_fetch_pointer_argument (gdbarch, frame, 2, ptr_type); | |
b81654f1 | 1590 | |
e17a4113 | 1591 | read_objc_super (gdbarch, super, &sstr); |
d2e6263c MS |
1592 | if (sstr.class == 0) |
1593 | return 0; | |
b81654f1 | 1594 | |
e17a4113 | 1595 | res = find_implementation_from_class (gdbarch, sstr.class, sel); |
d2e6263c MS |
1596 | if (new_pc != 0) |
1597 | *new_pc = res; | |
1598 | if (res == 0) | |
1599 | return 1; | |
b81654f1 MS |
1600 | return 0; |
1601 | } | |
57a9e6af | 1602 | |
70221824 PA |
1603 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
1604 | extern initialize_file_ftype _initialize_objc_lang; | |
1605 | ||
57a9e6af PP |
1606 | void |
1607 | _initialize_objc_lang (void) | |
1608 | { | |
1609 | objc_objfile_data = register_objfile_data (); | |
1610 | } |