1 /* Objective-C language support routines for GDB, the GNU debugger.
3 Copyright 2002, 2003 Free Software Foundation, Inc.
5 Contributed by Apple Computer, Inc.
6 Written by Michael Snyder.
8 This file is part of GDB.
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
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
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.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place - Suite 330,
23 Boston, MA 02111-1307, USA. */
28 #include "expression.h"
29 #include "parser-defs.h"
32 #include "objc-lang.h"
33 #include "complaints.h"
37 #include "gdb_string.h" /* for strchr */
38 #include "target.h" /* for target_has_execution */
42 #include "gdb_regex.h"
47 #include "gdb_assert.h"
57 CORE_ADDR super_class
;
79 /* Lookup a structure type named "struct NAME", visible in lexical
80 block BLOCK. If NOERR is nonzero, return zero if NAME is not
84 lookup_struct_typedef (char *name
, struct block
*block
, int noerr
)
88 sym
= lookup_symbol (name
, block
, STRUCT_DOMAIN
, 0,
89 (struct symtab
**) NULL
);
96 error ("No struct type named %s.", name
);
98 if (TYPE_CODE (SYMBOL_TYPE (sym
)) != TYPE_CODE_STRUCT
)
103 error ("This context has class, union or enum %s, not a struct.",
110 lookup_objc_class (char *classname
)
112 struct value
* function
, *classval
;
114 if (! target_has_execution
)
116 /* Can't call into inferior to lookup class. */
120 if (lookup_minimal_symbol("objc_lookUpClass", 0, 0))
121 function
= find_function_in_inferior("objc_lookUpClass");
122 else if (lookup_minimal_symbol ("objc_lookup_class", 0, 0))
123 function
= find_function_in_inferior("objc_lookup_class");
126 complaint (&symfile_complaints
, "no way to lookup Objective-C classes");
130 classval
= value_string (classname
, strlen (classname
) + 1);
131 classval
= value_coerce_array (classval
);
132 return (CORE_ADDR
) value_as_long (call_function_by_hand (function
,
137 lookup_child_selector (char *selname
)
139 struct value
* function
, *selstring
;
141 if (! target_has_execution
)
143 /* Can't call into inferior to lookup selector. */
147 if (lookup_minimal_symbol("sel_getUid", 0, 0))
148 function
= find_function_in_inferior("sel_getUid");
149 else if (lookup_minimal_symbol ("sel_get_any_uid", 0, 0))
150 function
= find_function_in_inferior("sel_get_any_uid");
153 complaint (&symfile_complaints
, "no way to lookup Objective-C selectors");
157 selstring
= value_coerce_array (value_string (selname
,
158 strlen (selname
) + 1));
159 return value_as_long (call_function_by_hand (function
, 1, &selstring
));
163 value_nsstring (char *ptr
, int len
)
165 struct value
*stringValue
[3];
166 struct value
*function
, *nsstringValue
;
170 if (!target_has_execution
)
171 return 0; /* Can't call into inferior to create NSString. */
173 sym
= lookup_struct_typedef("NSString", 0, 1);
175 sym
= lookup_struct_typedef("NXString", 0, 1);
177 type
= lookup_pointer_type(builtin_type_void
);
179 type
= lookup_pointer_type(SYMBOL_TYPE (sym
));
181 stringValue
[2] = value_string(ptr
, len
);
182 stringValue
[2] = value_coerce_array(stringValue
[2]);
183 /* _NSNewStringFromCString replaces "istr" after Lantern2A. */
184 if (lookup_minimal_symbol("_NSNewStringFromCString", 0, 0))
186 function
= find_function_in_inferior("_NSNewStringFromCString");
187 nsstringValue
= call_function_by_hand(function
, 1, &stringValue
[2]);
189 else if (lookup_minimal_symbol("istr", 0, 0))
191 function
= find_function_in_inferior("istr");
192 nsstringValue
= call_function_by_hand(function
, 1, &stringValue
[2]);
194 else if (lookup_minimal_symbol("+[NSString stringWithCString:]", 0, 0))
196 function
= find_function_in_inferior("+[NSString stringWithCString:]");
197 stringValue
[0] = value_from_longest
198 (builtin_type_long
, lookup_objc_class ("NSString"));
199 stringValue
[1] = value_from_longest
200 (builtin_type_long
, lookup_child_selector ("stringWithCString:"));
201 nsstringValue
= call_function_by_hand(function
, 3, &stringValue
[0]);
204 error ("NSString: internal error -- no way to create new NSString");
206 VALUE_TYPE(nsstringValue
) = type
;
207 return nsstringValue
;
210 /* Objective-C name demangling. */
213 objc_demangle (const char *mangled
, int options
)
215 char *demangled
, *cp
;
217 if (mangled
[0] == '_' &&
218 (mangled
[1] == 'i' || mangled
[1] == 'c') &&
221 cp
= demangled
= xmalloc(strlen(mangled
) + 2);
223 if (mangled
[1] == 'i')
224 *cp
++ = '-'; /* for instance method */
226 *cp
++ = '+'; /* for class method */
228 *cp
++ = '['; /* opening left brace */
229 strcpy(cp
, mangled
+3); /* tack on the rest of the mangled name */
231 while (*cp
&& *cp
== '_')
232 cp
++; /* skip any initial underbars in class name */
234 cp
= strchr(cp
, '_');
235 if (!cp
) /* find first non-initial underbar */
237 xfree(demangled
); /* not mangled name */
240 if (cp
[1] == '_') { /* easy case: no category name */
241 *cp
++ = ' '; /* replace two '_' with one ' ' */
242 strcpy(cp
, mangled
+ (cp
- demangled
) + 2);
245 *cp
++ = '('; /* less easy case: category name */
246 cp
= strchr(cp
, '_');
249 xfree(demangled
); /* not mangled name */
253 *cp
++ = ' '; /* overwriting 1st char of method name... */
254 strcpy(cp
, mangled
+ (cp
- demangled
)); /* get it back */
257 while (*cp
&& *cp
== '_')
258 cp
++; /* skip any initial underbars in method name */
262 *cp
= ':'; /* replace remaining '_' with ':' */
264 *cp
++ = ']'; /* closing right brace */
265 *cp
++ = 0; /* string terminator */
269 return NULL
; /* Not an objc mangled name. */
272 /* Print the character C on STREAM as part of the contents of a
273 literal string whose delimiter is QUOTER. Note that that format
274 for printing characters and strings is language specific. */
277 objc_emit_char (int c
, struct ui_file
*stream
, int quoter
)
280 c
&= 0xFF; /* Avoid sign bit follies. */
282 if (PRINT_LITERAL_FORM (c
))
284 if (c
== '\\' || c
== quoter
)
286 fputs_filtered ("\\", stream
);
288 fprintf_filtered (stream
, "%c", c
);
295 fputs_filtered ("\\n", stream
);
298 fputs_filtered ("\\b", stream
);
301 fputs_filtered ("\\t", stream
);
304 fputs_filtered ("\\f", stream
);
307 fputs_filtered ("\\r", stream
);
310 fputs_filtered ("\\e", stream
);
313 fputs_filtered ("\\a", stream
);
316 fprintf_filtered (stream
, "\\%.3o", (unsigned int) c
);
323 objc_printchar (int c
, struct ui_file
*stream
)
325 fputs_filtered ("'", stream
);
326 objc_emit_char (c
, stream
, '\'');
327 fputs_filtered ("'", stream
);
330 /* Print the character string STRING, printing at most LENGTH
331 characters. Printing stops early if the number hits print_max;
332 repeat counts are printed as appropriate. Print ellipses at the
333 end if we had to stop before printing LENGTH characters, or if
337 objc_printstr (struct ui_file
*stream
, char *string
,
338 unsigned int length
, int width
, int force_ellipses
)
341 unsigned int things_printed
= 0;
345 /* If the string was not truncated due to `set print elements', and
346 the last byte of it is a null, we don't print that, in
347 traditional C style. */
348 if ((!force_ellipses
) && length
> 0 && string
[length
-1] == '\0')
353 fputs_filtered ("\"\"", stream
);
357 for (i
= 0; i
< length
&& things_printed
< print_max
; ++i
)
359 /* Position of the character we are examining to see whether it
362 /* Number of repetitions we have detected so far. */
369 fputs_filtered (", ", stream
);
375 while (rep1
< length
&& string
[rep1
] == string
[i
])
381 if (reps
> repeat_count_threshold
)
386 fputs_filtered ("\\\", ", stream
);
388 fputs_filtered ("\", ", stream
);
391 objc_printchar (string
[i
], stream
);
392 fprintf_filtered (stream
, " <repeats %u times>", reps
);
394 things_printed
+= repeat_count_threshold
;
402 fputs_filtered ("\\\"", stream
);
404 fputs_filtered ("\"", stream
);
407 objc_emit_char (string
[i
], stream
, '"');
412 /* Terminate the quotes if necessary. */
416 fputs_filtered ("\\\"", stream
);
418 fputs_filtered ("\"", stream
);
421 if (force_ellipses
|| i
< length
)
422 fputs_filtered ("...", stream
);
425 /* Create a fundamental C type using default reasonable for the
428 Some object/debugging file formats (DWARF version 1, COFF, etc) do
429 not define fundamental types such as "int" or "double". Others
430 (stabs or DWARF version 2, etc) do define fundamental types. For
431 the formats which don't provide fundamental types, gdb can create
432 such types using this function.
434 FIXME: Some compilers distinguish explicitly signed integral types
435 (signed short, signed int, signed long) from "regular" integral
436 types (short, int, long) in the debugging information. There is
437 some disagreement as to how useful this feature is. In particular,
438 gcc does not support this. Also, only some debugging formats allow
439 the distinction to be passed on to a debugger. For now, we always
440 just use "short", "int", or "long" as the type name, for both the
441 implicit and explicitly signed types. This also makes life easier
442 for the gdb test suite since we don't have to account for the
443 differences in output depending upon what the compiler and
444 debugging format support. We will probably have to re-examine the
445 issue when gdb starts taking it's fundamental type information
446 directly from the debugging information supplied by the compiler.
450 objc_create_fundamental_type (struct objfile
*objfile
, int typeid)
452 struct type
*type
= NULL
;
457 /* FIXME: For now, if we are asked to produce a type not in
458 this language, create the equivalent of a C integer type
459 with the name "<?type?>". When all the dust settles from
460 the type reconstruction work, this should probably become
462 type
= init_type (TYPE_CODE_INT
,
463 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
464 0, "<?type?>", objfile
);
465 warning ("internal error: no C/C++ fundamental type %d", typeid);
468 type
= init_type (TYPE_CODE_VOID
,
469 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
473 type
= init_type (TYPE_CODE_INT
,
474 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
478 type
= init_type (TYPE_CODE_INT
,
479 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
480 0, "signed char", objfile
);
482 case FT_UNSIGNED_CHAR
:
483 type
= init_type (TYPE_CODE_INT
,
484 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
485 TYPE_FLAG_UNSIGNED
, "unsigned char", objfile
);
488 type
= init_type (TYPE_CODE_INT
,
489 TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
490 0, "short", objfile
);
492 case FT_SIGNED_SHORT
:
493 type
= init_type (TYPE_CODE_INT
,
494 TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
495 0, "short", objfile
); /* FIXME-fnf */
497 case FT_UNSIGNED_SHORT
:
498 type
= init_type (TYPE_CODE_INT
,
499 TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
500 TYPE_FLAG_UNSIGNED
, "unsigned short", objfile
);
503 type
= init_type (TYPE_CODE_INT
,
504 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
507 case FT_SIGNED_INTEGER
:
508 type
= init_type (TYPE_CODE_INT
,
509 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
510 0, "int", objfile
); /* FIXME -fnf */
512 case FT_UNSIGNED_INTEGER
:
513 type
= init_type (TYPE_CODE_INT
,
514 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
515 TYPE_FLAG_UNSIGNED
, "unsigned int", objfile
);
518 type
= init_type (TYPE_CODE_INT
,
519 TARGET_LONG_BIT
/ TARGET_CHAR_BIT
,
523 type
= init_type (TYPE_CODE_INT
,
524 TARGET_LONG_BIT
/ TARGET_CHAR_BIT
,
525 0, "long", objfile
); /* FIXME -fnf */
527 case FT_UNSIGNED_LONG
:
528 type
= init_type (TYPE_CODE_INT
,
529 TARGET_LONG_BIT
/ TARGET_CHAR_BIT
,
530 TYPE_FLAG_UNSIGNED
, "unsigned long", objfile
);
533 type
= init_type (TYPE_CODE_INT
,
534 TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
,
535 0, "long long", objfile
);
537 case FT_SIGNED_LONG_LONG
:
538 type
= init_type (TYPE_CODE_INT
,
539 TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
,
540 0, "signed long long", objfile
);
542 case FT_UNSIGNED_LONG_LONG
:
543 type
= init_type (TYPE_CODE_INT
,
544 TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
,
545 TYPE_FLAG_UNSIGNED
, "unsigned long long", objfile
);
548 type
= init_type (TYPE_CODE_FLT
,
549 TARGET_FLOAT_BIT
/ TARGET_CHAR_BIT
,
550 0, "float", objfile
);
552 case FT_DBL_PREC_FLOAT
:
553 type
= init_type (TYPE_CODE_FLT
,
554 TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
555 0, "double", objfile
);
557 case FT_EXT_PREC_FLOAT
:
558 type
= init_type (TYPE_CODE_FLT
,
559 TARGET_LONG_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
560 0, "long double", objfile
);
566 /* Determine if we are currently in the Objective-C dispatch function.
567 If so, get the address of the method function that the dispatcher
568 would call and use that as the function to step into instead. Also
569 skip over the trampoline for the function (if any). This is better
570 for the user since they are only interested in stepping into the
571 method function anyway. */
573 objc_skip_trampoline (CORE_ADDR stop_pc
)
575 CORE_ADDR real_stop_pc
;
576 CORE_ADDR method_stop_pc
;
578 real_stop_pc
= SKIP_TRAMPOLINE_CODE (stop_pc
);
580 if (real_stop_pc
!= 0)
581 find_objc_msgcall (real_stop_pc
, &method_stop_pc
);
583 find_objc_msgcall (stop_pc
, &method_stop_pc
);
587 real_stop_pc
= SKIP_TRAMPOLINE_CODE (method_stop_pc
);
588 if (real_stop_pc
== 0)
589 real_stop_pc
= method_stop_pc
;
596 /* Table mapping opcodes into strings for printing operators
597 and precedences of the operators. */
599 static const struct op_print objc_op_print_tab
[] =
601 {",", BINOP_COMMA
, PREC_COMMA
, 0},
602 {"=", BINOP_ASSIGN
, PREC_ASSIGN
, 1},
603 {"||", BINOP_LOGICAL_OR
, PREC_LOGICAL_OR
, 0},
604 {"&&", BINOP_LOGICAL_AND
, PREC_LOGICAL_AND
, 0},
605 {"|", BINOP_BITWISE_IOR
, PREC_BITWISE_IOR
, 0},
606 {"^", BINOP_BITWISE_XOR
, PREC_BITWISE_XOR
, 0},
607 {"&", BINOP_BITWISE_AND
, PREC_BITWISE_AND
, 0},
608 {"==", BINOP_EQUAL
, PREC_EQUAL
, 0},
609 {"!=", BINOP_NOTEQUAL
, PREC_EQUAL
, 0},
610 {"<=", BINOP_LEQ
, PREC_ORDER
, 0},
611 {">=", BINOP_GEQ
, PREC_ORDER
, 0},
612 {">", BINOP_GTR
, PREC_ORDER
, 0},
613 {"<", BINOP_LESS
, PREC_ORDER
, 0},
614 {">>", BINOP_RSH
, PREC_SHIFT
, 0},
615 {"<<", BINOP_LSH
, PREC_SHIFT
, 0},
616 {"+", BINOP_ADD
, PREC_ADD
, 0},
617 {"-", BINOP_SUB
, PREC_ADD
, 0},
618 {"*", BINOP_MUL
, PREC_MUL
, 0},
619 {"/", BINOP_DIV
, PREC_MUL
, 0},
620 {"%", BINOP_REM
, PREC_MUL
, 0},
621 {"@", BINOP_REPEAT
, PREC_REPEAT
, 0},
622 {"-", UNOP_NEG
, PREC_PREFIX
, 0},
623 {"!", UNOP_LOGICAL_NOT
, PREC_PREFIX
, 0},
624 {"~", UNOP_COMPLEMENT
, PREC_PREFIX
, 0},
625 {"*", UNOP_IND
, PREC_PREFIX
, 0},
626 {"&", UNOP_ADDR
, PREC_PREFIX
, 0},
627 {"sizeof ", UNOP_SIZEOF
, PREC_PREFIX
, 0},
628 {"++", UNOP_PREINCREMENT
, PREC_PREFIX
, 0},
629 {"--", UNOP_PREDECREMENT
, PREC_PREFIX
, 0},
630 {NULL
, OP_NULL
, PREC_NULL
, 0}
633 struct type
** const (objc_builtin_types
[]) =
640 &builtin_type_double
,
642 &builtin_type_long_long
,
643 &builtin_type_signed_char
,
644 &builtin_type_unsigned_char
,
645 &builtin_type_unsigned_short
,
646 &builtin_type_unsigned_int
,
647 &builtin_type_unsigned_long
,
648 &builtin_type_unsigned_long_long
,
649 &builtin_type_long_double
,
650 &builtin_type_complex
,
651 &builtin_type_double_complex
,
655 const struct language_defn objc_language_defn
= {
656 "objective-c", /* Language name */
662 &exp_descriptor_standard
,
665 objc_printchar
, /* Print a character constant */
666 objc_printstr
, /* Function to print string constant */
668 objc_create_fundamental_type
, /* Create fundamental type in this language */
669 c_print_type
, /* Print a type using appropriate syntax */
670 c_val_print
, /* Print a value using appropriate syntax */
671 c_value_print
, /* Print a top-level value */
672 objc_skip_trampoline
, /* Language specific skip_trampoline */
673 value_of_this
, /* value_of_this */
674 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
675 objc_demangle
, /* Language specific symbol demangler */
676 {"", "", "", ""}, /* Binary format info */
677 {"0%lo", "0", "o", ""}, /* Octal format info */
678 {"%ld", "", "d", ""}, /* Decimal format info */
679 {"0x%lx", "0x", "x", ""}, /* Hex format info */
680 objc_op_print_tab
, /* Expression operators for printing */
681 1, /* C-style arrays */
682 0, /* String lower bound */
683 &builtin_type_char
, /* Type of string elements */
684 default_word_break_characters
,
690 * Following functions help construct Objective-C message calls
693 struct selname
/* For parsing Objective-C. */
695 struct selname
*next
;
700 static int msglist_len
;
701 static struct selname
*selname_chain
;
702 static char *msglist_sel
;
707 struct selname
*new =
708 (struct selname
*) xmalloc (sizeof (struct selname
));
710 new->next
= selname_chain
;
711 new->msglist_len
= msglist_len
;
712 new->msglist_sel
= msglist_sel
;
714 msglist_sel
= (char *)xmalloc(1);
720 add_msglist(struct stoken
*str
, int addcolon
)
725 if (str
== 0) { /* Unnamed arg, or... */
726 if (addcolon
== 0) { /* variable number of args. */
736 len
= plen
+ strlen(msglist_sel
) + 2;
737 s
= (char *)xmalloc(len
);
738 strcpy(s
, msglist_sel
);
753 int val
= msglist_len
;
754 struct selname
*sel
= selname_chain
;
755 char *p
= msglist_sel
;
758 selname_chain
= sel
->next
;
759 msglist_len
= sel
->msglist_len
;
760 msglist_sel
= sel
->msglist_sel
;
761 selid
= lookup_child_selector(p
);
763 error("Can't find selector \"%s\"", p
);
764 write_exp_elt_longcst (selid
);
766 write_exp_elt_longcst (val
); /* Number of args */
773 * Function: specialcmp (char *a, char *b)
775 * Special strcmp: treats ']' and ' ' as end-of-string.
776 * Used for qsorting lists of objc methods (either by class or selector).
780 specialcmp (char *a
, char *b
)
782 while (*a
&& *a
!= ' ' && *a
!= ']' && *b
&& *b
!= ' ' && *b
!= ']')
788 if (*a
&& *a
!= ' ' && *a
!= ']')
789 return 1; /* a is longer therefore greater */
790 if (*b
&& *b
!= ' ' && *b
!= ']')
791 return -1; /* a is shorter therefore lesser */
792 return 0; /* a and b are identical */
796 * Function: compare_selectors (const void *, const void *)
798 * Comparison function for use with qsort. Arguments are symbols or
799 * msymbols Compares selector part of objc method name alphabetically.
803 compare_selectors (const void *a
, const void *b
)
807 aname
= SYMBOL_PRINT_NAME (*(struct symbol
**) a
);
808 bname
= SYMBOL_PRINT_NAME (*(struct symbol
**) b
);
809 if (aname
== NULL
|| bname
== NULL
)
810 error ("internal: compare_selectors(1)");
812 aname
= strchr(aname
, ' ');
813 bname
= strchr(bname
, ' ');
814 if (aname
== NULL
|| bname
== NULL
)
815 error ("internal: compare_selectors(2)");
817 return specialcmp (aname
+1, bname
+1);
821 * Function: selectors_info (regexp, from_tty)
823 * Implements the "Info selectors" command. Takes an optional regexp
824 * arg. Lists all objective c selectors that match the regexp. Works
825 * by grepping thru all symbols for objective c methods. Output list
826 * is sorted and uniqued.
830 selectors_info (char *regexp
, int from_tty
)
832 struct objfile
*objfile
;
833 struct minimal_symbol
*msymbol
;
841 struct symbol
**sym_arr
;
845 strcpy(myregexp
, ".*]"); /* Null input, match all objc methods. */
848 if (*regexp
== '+' || *regexp
== '-')
849 { /* User wants only class methods or only instance methods. */
850 plusminus
= *regexp
++;
851 while (*regexp
== ' ' || *regexp
== '\t')
855 strcpy(myregexp
, ".*]");
858 strcpy(myregexp
, regexp
);
859 if (myregexp
[strlen(myregexp
) - 1] == '$') /* end of selector */
860 myregexp
[strlen(myregexp
) - 1] = ']'; /* end of method name */
862 strcat(myregexp
, ".*]");
868 val
= re_comp (myregexp
);
870 error ("Invalid regexp (%s): %s", val
, regexp
);
873 /* First time thru is JUST to get max length and count. */
874 ALL_MSYMBOLS (objfile
, msymbol
)
877 name
= SYMBOL_NATURAL_NAME (msymbol
);
879 (name
[0] == '-' || name
[0] == '+') &&
880 name
[1] == '[') /* Got a method name. */
882 /* Filter for class/instance methods. */
883 if (plusminus
&& name
[0] != plusminus
)
885 /* Find selector part. */
886 name
= (char *) strchr(name
+2, ' ');
887 if (regexp
== NULL
|| re_exec(++name
) != 0)
889 char *mystart
= name
;
890 char *myend
= (char *) strchr(mystart
, ']');
892 if (myend
&& (myend
- mystart
> maxlen
))
893 maxlen
= myend
- mystart
; /* Get longest selector. */
900 printf_filtered ("Selectors matching \"%s\":\n\n",
901 regexp
? regexp
: "*");
903 sym_arr
= alloca (matches
* sizeof (struct symbol
*));
905 ALL_MSYMBOLS (objfile
, msymbol
)
908 name
= SYMBOL_NATURAL_NAME (msymbol
);
910 (name
[0] == '-' || name
[0] == '+') &&
911 name
[1] == '[') /* Got a method name. */
913 /* Filter for class/instance methods. */
914 if (plusminus
&& name
[0] != plusminus
)
916 /* Find selector part. */
917 name
= (char *) strchr(name
+2, ' ');
918 if (regexp
== NULL
|| re_exec(++name
) != 0)
919 sym_arr
[matches
++] = (struct symbol
*) msymbol
;
923 qsort (sym_arr
, matches
, sizeof (struct minimal_symbol
*),
925 /* Prevent compare on first iteration. */
927 for (ix
= 0; ix
< matches
; ix
++) /* Now do the output. */
932 name
= SYMBOL_NATURAL_NAME (sym_arr
[ix
]);
933 name
= strchr (name
, ' ') + 1;
934 if (p
[0] && specialcmp(name
, p
) == 0)
935 continue; /* Seen this one already (not unique). */
937 /* Copy selector part. */
938 while (*name
&& *name
!= ']')
941 /* Print in columns. */
942 puts_filtered_tabular(asel
, maxlen
+ 1, 0);
947 printf_filtered ("No selectors matching \"%s\"\n", regexp
? regexp
: "*");
951 * Function: compare_classes (const void *, const void *)
953 * Comparison function for use with qsort. Arguments are symbols or
954 * msymbols Compares class part of objc method name alphabetically.
958 compare_classes (const void *a
, const void *b
)
962 aname
= SYMBOL_PRINT_NAME (*(struct symbol
**) a
);
963 bname
= SYMBOL_PRINT_NAME (*(struct symbol
**) b
);
964 if (aname
== NULL
|| bname
== NULL
)
965 error ("internal: compare_classes(1)");
967 return specialcmp (aname
+1, bname
+1);
971 * Function: classes_info(regexp, from_tty)
973 * Implements the "info classes" command for objective c classes.
974 * Lists all objective c classes that match the optional regexp.
975 * Works by grepping thru the list of objective c methods. List will
976 * be sorted and uniqued (since one class may have many methods).
977 * BUGS: will not list a class that has no methods.
981 classes_info (char *regexp
, int from_tty
)
983 struct objfile
*objfile
;
984 struct minimal_symbol
*msymbol
;
992 struct symbol
**sym_arr
;
995 strcpy(myregexp
, ".* "); /* Null input: match all objc classes. */
998 strcpy(myregexp
, regexp
);
999 if (myregexp
[strlen(myregexp
) - 1] == '$')
1000 /* In the method name, the end of the class name is marked by ' '. */
1001 myregexp
[strlen(myregexp
) - 1] = ' ';
1003 strcat(myregexp
, ".* ");
1008 val
= re_comp (myregexp
);
1010 error ("Invalid regexp (%s): %s", val
, regexp
);
1013 /* First time thru is JUST to get max length and count. */
1014 ALL_MSYMBOLS (objfile
, msymbol
)
1017 name
= SYMBOL_NATURAL_NAME (msymbol
);
1019 (name
[0] == '-' || name
[0] == '+') &&
1020 name
[1] == '[') /* Got a method name. */
1021 if (regexp
== NULL
|| re_exec(name
+2) != 0)
1023 /* Compute length of classname part. */
1024 char *mystart
= name
+ 2;
1025 char *myend
= (char *) strchr(mystart
, ' ');
1027 if (myend
&& (myend
- mystart
> maxlen
))
1028 maxlen
= myend
- mystart
;
1034 printf_filtered ("Classes matching \"%s\":\n\n",
1035 regexp
? regexp
: "*");
1036 sym_arr
= alloca (matches
* sizeof (struct symbol
*));
1038 ALL_MSYMBOLS (objfile
, msymbol
)
1041 name
= SYMBOL_NATURAL_NAME (msymbol
);
1043 (name
[0] == '-' || name
[0] == '+') &&
1044 name
[1] == '[') /* Got a method name. */
1045 if (regexp
== NULL
|| re_exec(name
+2) != 0)
1046 sym_arr
[matches
++] = (struct symbol
*) msymbol
;
1049 qsort (sym_arr
, matches
, sizeof (struct minimal_symbol
*),
1051 /* Prevent compare on first iteration. */
1053 for (ix
= 0; ix
< matches
; ix
++) /* Now do the output. */
1058 name
= SYMBOL_NATURAL_NAME (sym_arr
[ix
]);
1060 if (p
[0] && specialcmp(name
, p
) == 0)
1061 continue; /* Seen this one already (not unique). */
1063 /* Copy class part of method name. */
1064 while (*name
&& *name
!= ' ')
1067 /* Print in columns. */
1068 puts_filtered_tabular(aclass
, maxlen
+ 1, 0);
1073 printf_filtered ("No classes matching \"%s\"\n", regexp
? regexp
: "*");
1077 * Function: find_imps (char *selector, struct symbol **sym_arr)
1079 * Input: a string representing a selector
1080 * a pointer to an array of symbol pointers
1081 * possibly a pointer to a symbol found by the caller.
1083 * Output: number of methods that implement that selector. Side
1084 * effects: The array of symbol pointers is filled with matching syms.
1086 * By analogy with function "find_methods" (symtab.c), builds a list
1087 * of symbols matching the ambiguous input, so that "decode_line_2"
1088 * (symtab.c) can list them and ask the user to choose one or more.
1089 * In this case the matches are objective c methods
1090 * ("implementations") matching an objective c selector.
1092 * Note that it is possible for a normal (c-style) function to have
1093 * the same name as an objective c selector. To prevent the selector
1094 * from eclipsing the function, we allow the caller (decode_line_1) to
1095 * search for such a function first, and if it finds one, pass it in
1096 * to us. We will then integrate it into the list. We also search
1097 * for one here, among the minsyms.
1099 * NOTE: if NUM_DEBUGGABLE is non-zero, the sym_arr will be divided
1100 * into two parts: debuggable (struct symbol) syms, and
1101 * non_debuggable (struct minimal_symbol) syms. The debuggable
1102 * ones will come first, before NUM_DEBUGGABLE (which will thus
1103 * be the index of the first non-debuggable one).
1107 * Function: total_number_of_imps (char *selector);
1109 * Input: a string representing a selector
1110 * Output: number of methods that implement that selector.
1112 * By analogy with function "total_number_of_methods", this allows
1113 * decode_line_1 (symtab.c) to detect if there are objective c methods
1114 * matching the input, and to allocate an array of pointers to them
1115 * which can be manipulated by "decode_line_2" (also in symtab.c).
1119 parse_selector (char *method
, char **selector
)
1123 int found_quote
= 0;
1125 char *nselector
= NULL
;
1127 gdb_assert (selector
!= NULL
);
1131 while (isspace (*s1
))
1138 while (isspace (*s1
))
1145 if (isalnum (*s2
) || (*s2
== '_') || (*s2
== ':'))
1147 else if (isspace (*s2
))
1149 else if ((*s2
== '\0') || (*s2
== '\''))
1157 while (isspace (*s2
))
1163 while (isspace (*s2
))
1167 if (selector
!= NULL
)
1168 *selector
= nselector
;
1174 parse_method (char *method
, char *type
, char **class,
1175 char **category
, char **selector
)
1179 int found_quote
= 0;
1182 char *nclass
= NULL
;
1183 char *ncategory
= NULL
;
1184 char *nselector
= NULL
;
1186 gdb_assert (type
!= NULL
);
1187 gdb_assert (class != NULL
);
1188 gdb_assert (category
!= NULL
);
1189 gdb_assert (selector
!= NULL
);
1193 while (isspace (*s1
))
1200 while (isspace (*s1
))
1203 if ((s1
[0] == '+') || (s1
[0] == '-'))
1206 while (isspace (*s1
))
1214 while (isalnum (*s1
) || (*s1
== '_'))
1218 while (isspace (*s2
))
1224 while (isspace (*s2
))
1227 while (isalnum (*s2
) || (*s2
== '_'))
1232 /* Truncate the class name now that we're not using the open paren. */
1239 if (isalnum (*s2
) || (*s2
== '_') || (*s2
== ':'))
1241 else if (isspace (*s2
))
1243 else if (*s2
== ']')
1252 while (isspace (*s2
))
1259 while (isspace (*s2
))
1267 if (category
!= NULL
)
1268 *category
= ncategory
;
1269 if (selector
!= NULL
)
1270 *selector
= nselector
;
1276 find_methods (struct symtab
*symtab
, char type
,
1277 const char *class, const char *category
,
1278 const char *selector
, struct symbol
**syms
,
1279 unsigned int *nsym
, unsigned int *ndebug
)
1281 struct objfile
*objfile
= NULL
;
1282 struct minimal_symbol
*msymbol
= NULL
;
1283 struct block
*block
= NULL
;
1284 struct symbol
*sym
= NULL
;
1286 char *symname
= NULL
;
1289 char *nclass
= NULL
;
1290 char *ncategory
= NULL
;
1291 char *nselector
= NULL
;
1293 unsigned int csym
= 0;
1294 unsigned int cdebug
= 0;
1296 static char *tmp
= NULL
;
1297 static unsigned int tmplen
= 0;
1299 gdb_assert (nsym
!= NULL
);
1300 gdb_assert (ndebug
!= NULL
);
1303 block
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab
), STATIC_BLOCK
);
1305 ALL_MSYMBOLS (objfile
, msymbol
)
1309 if ((msymbol
->type
!= mst_text
) && (msymbol
->type
!= mst_file_text
))
1310 /* Not a function or method. */
1314 if ((SYMBOL_VALUE_ADDRESS (msymbol
) < BLOCK_START (block
)) ||
1315 (SYMBOL_VALUE_ADDRESS (msymbol
) >= BLOCK_END (block
)))
1316 /* Not in the specified symtab. */
1319 symname
= SYMBOL_NATURAL_NAME (msymbol
);
1320 if (symname
== NULL
)
1323 if ((symname
[0] != '-' && symname
[0] != '+') || (symname
[1] != '['))
1324 /* Not a method name. */
1327 while ((strlen (symname
) + 1) >= tmplen
)
1329 tmplen
= (tmplen
== 0) ? 1024 : tmplen
* 2;
1330 tmp
= xrealloc (tmp
, tmplen
);
1332 strcpy (tmp
, symname
);
1334 if (parse_method (tmp
, &ntype
, &nclass
, &ncategory
, &nselector
) == NULL
)
1337 if ((type
!= '\0') && (ntype
!= type
))
1341 && ((nclass
== NULL
) || (strcmp (class, nclass
) != 0)))
1344 if ((category
!= NULL
) &&
1345 ((ncategory
== NULL
) || (strcmp (category
, ncategory
) != 0)))
1348 if ((selector
!= NULL
) &&
1349 ((nselector
== NULL
) || (strcmp (selector
, nselector
) != 0)))
1352 sym
= find_pc_function (SYMBOL_VALUE_ADDRESS (msymbol
));
1355 const char *newsymname
= SYMBOL_NATURAL_NAME (sym
);
1357 if (strcmp (symname
, newsymname
) == 0)
1359 /* Found a high-level method sym: swap it into the
1360 lower part of sym_arr (below num_debuggable). */
1363 syms
[csym
] = syms
[cdebug
];
1372 "debugging symbol \"%s\" does not match minimal symbol (\"%s\"); ignoring",
1373 newsymname
, symname
);
1375 syms
[csym
] = (struct symbol
*) msymbol
;
1381 /* Found a non-debuggable method symbol. */
1383 syms
[csym
] = (struct symbol
*) msymbol
;
1394 char *find_imps (struct symtab
*symtab
, struct block
*block
,
1395 char *method
, struct symbol
**syms
,
1396 unsigned int *nsym
, unsigned int *ndebug
)
1400 char *category
= NULL
;
1401 char *selector
= NULL
;
1403 unsigned int csym
= 0;
1404 unsigned int cdebug
= 0;
1406 unsigned int ncsym
= 0;
1407 unsigned int ncdebug
= 0;
1412 gdb_assert (nsym
!= NULL
);
1413 gdb_assert (ndebug
!= NULL
);
1420 buf
= (char *) alloca (strlen (method
) + 1);
1421 strcpy (buf
, method
);
1422 tmp
= parse_method (buf
, &type
, &class, &category
, &selector
);
1426 struct symbol
*sym
= NULL
;
1427 struct minimal_symbol
*msym
= NULL
;
1429 strcpy (buf
, method
);
1430 tmp
= parse_selector (buf
, &selector
);
1435 sym
= lookup_symbol (selector
, block
, VAR_DOMAIN
, 0, NULL
);
1445 msym
= lookup_minimal_symbol (selector
, 0, 0);
1450 syms
[csym
] = (struct symbol
*)msym
;
1456 find_methods (symtab
, type
, class, category
, selector
,
1457 syms
+ csym
, &ncsym
, &ncdebug
);
1459 find_methods (symtab
, type
, class, category
, selector
,
1460 NULL
, &ncsym
, &ncdebug
);
1462 /* If we didn't find any methods, just return. */
1463 if (ncsym
== 0 && ncdebug
== 0)
1466 /* Take debug symbols from the second batch of symbols and swap them
1467 * with debug symbols from the first batch. Repeat until either the
1468 * second section is out of debug symbols or the first section is
1469 * full of debug symbols. Either way we have all debug symbols
1470 * packed to the beginning of the buffer.
1475 while ((cdebug
< csym
) && (ncdebug
> 0))
1477 struct symbol
*s
= NULL
;
1478 /* First non-debugging symbol. */
1479 unsigned int i
= cdebug
;
1480 /* Last of second batch of debug symbols. */
1481 unsigned int j
= csym
+ ncdebug
- 1;
1487 /* We've moved a symbol from the second debug section to the
1503 return method
+ (tmp
- buf
);
1507 /* Sort debuggable symbols. */
1509 qsort (syms
, cdebug
, sizeof (struct minimal_symbol
*),
1512 /* Sort minimal_symbols. */
1513 if ((csym
- cdebug
) > 1)
1514 qsort (&syms
[cdebug
], csym
- cdebug
,
1515 sizeof (struct minimal_symbol
*), compare_classes
);
1517 /* Terminate the sym_arr list. */
1520 return method
+ (tmp
- buf
);
1524 print_object_command (char *args
, int from_tty
)
1526 struct value
*object
, *function
, *description
;
1527 CORE_ADDR string_addr
, object_addr
;
1531 if (!args
|| !*args
)
1533 "The 'print-object' command requires an argument (an Objective-C object)");
1536 struct expression
*expr
= parse_expression (args
);
1537 struct cleanup
*old_chain
=
1538 make_cleanup (free_current_contents
, &expr
);
1541 object
= expr
->language_defn
->la_exp_desc
->evaluate_exp
1542 (builtin_type_void_data_ptr
, expr
, &pc
, EVAL_NORMAL
);
1543 do_cleanups (old_chain
);
1546 /* Validate the address for sanity. */
1547 object_addr
= value_as_long (object
);
1548 read_memory (object_addr
, &c
, 1);
1550 function
= find_function_in_inferior ("_NSPrintForDebugger");
1551 if (function
== NULL
)
1552 error ("Unable to locate _NSPrintForDebugger in child process");
1554 description
= call_function_by_hand (function
, 1, &object
);
1556 string_addr
= value_as_long (description
);
1557 if (string_addr
== 0)
1558 error ("object returns null description");
1560 read_memory (string_addr
+ i
++, &c
, 1);
1563 { /* Read and print characters up to EOS. */
1565 printf_filtered ("%c", c
);
1566 read_memory (string_addr
+ i
++, &c
, 1);
1569 printf_filtered("<object returns empty description>");
1570 printf_filtered ("\n");
1573 /* The data structure 'methcalls' is used to detect method calls (thru
1574 * ObjC runtime lib functions objc_msgSend, objc_msgSendSuper, etc.),
1575 * and ultimately find the method being called.
1578 struct objc_methcall
{
1580 /* Return instance method to be called. */
1581 int (*stop_at
) (CORE_ADDR
, CORE_ADDR
*);
1582 /* Start of pc range corresponding to method invocation. */
1584 /* End of pc range corresponding to method invocation. */
1588 static int resolve_msgsend (CORE_ADDR pc
, CORE_ADDR
*new_pc
);
1589 static int resolve_msgsend_stret (CORE_ADDR pc
, CORE_ADDR
*new_pc
);
1590 static int resolve_msgsend_super (CORE_ADDR pc
, CORE_ADDR
*new_pc
);
1591 static int resolve_msgsend_super_stret (CORE_ADDR pc
, CORE_ADDR
*new_pc
);
1593 static struct objc_methcall methcalls
[] = {
1594 { "_objc_msgSend", resolve_msgsend
, 0, 0},
1595 { "_objc_msgSend_stret", resolve_msgsend_stret
, 0, 0},
1596 { "_objc_msgSendSuper", resolve_msgsend_super
, 0, 0},
1597 { "_objc_msgSendSuper_stret", resolve_msgsend_super_stret
, 0, 0},
1598 { "_objc_getClass", NULL
, 0, 0},
1599 { "_objc_getMetaClass", NULL
, 0, 0}
1602 #define nmethcalls (sizeof (methcalls) / sizeof (methcalls[0]))
1604 /* The following function, "find_objc_msgsend", fills in the data
1605 * structure "objc_msgs" by finding the addresses of each of the
1606 * (currently four) functions that it holds (of which objc_msgSend is
1607 * the first). This must be called each time symbols are loaded, in
1608 * case the functions have moved for some reason.
1612 find_objc_msgsend (void)
1615 for (i
= 0; i
< nmethcalls
; i
++) {
1617 struct minimal_symbol
*func
;
1619 /* Try both with and without underscore. */
1620 func
= lookup_minimal_symbol (methcalls
[i
].name
, NULL
, NULL
);
1621 if ((func
== NULL
) && (methcalls
[i
].name
[0] == '_')) {
1622 func
= lookup_minimal_symbol (methcalls
[i
].name
+ 1, NULL
, NULL
);
1625 methcalls
[i
].begin
= 0;
1626 methcalls
[i
].end
= 0;
1630 methcalls
[i
].begin
= SYMBOL_VALUE_ADDRESS (func
);
1632 methcalls
[i
].end
= SYMBOL_VALUE_ADDRESS (++func
);
1633 } while (methcalls
[i
].begin
== methcalls
[i
].end
);
1637 /* find_objc_msgcall (replaces pc_off_limits)
1639 * ALL that this function now does is to determine whether the input
1640 * address ("pc") is the address of one of the Objective-C message
1641 * dispatch functions (mainly objc_msgSend or objc_msgSendSuper), and
1642 * if so, it returns the address of the method that will be called.
1644 * The old function "pc_off_limits" used to do a lot of other things
1645 * in addition, such as detecting shared library jump stubs and
1646 * returning the address of the shlib function that would be called.
1647 * That functionality has been moved into the SKIP_TRAMPOLINE_CODE and
1648 * IN_SOLIB_TRAMPOLINE macros, which are resolved in the target-
1649 * dependent modules.
1652 struct objc_submethod_helper_data
{
1653 int (*f
) (CORE_ADDR
, CORE_ADDR
*);
1659 find_objc_msgcall_submethod_helper (void * arg
)
1661 struct objc_submethod_helper_data
*s
=
1662 (struct objc_submethod_helper_data
*) arg
;
1664 if (s
->f (s
->pc
, s
->new_pc
) == 0)
1671 find_objc_msgcall_submethod (int (*f
) (CORE_ADDR
, CORE_ADDR
*),
1675 struct objc_submethod_helper_data s
;
1681 if (catch_errors (find_objc_msgcall_submethod_helper
,
1683 "Unable to determine target of Objective-C method call (ignoring):\n",
1684 RETURN_MASK_ALL
) == 0)
1691 find_objc_msgcall (CORE_ADDR pc
, CORE_ADDR
*new_pc
)
1695 find_objc_msgsend ();
1701 for (i
= 0; i
< nmethcalls
; i
++)
1702 if ((pc
>= methcalls
[i
].begin
) && (pc
< methcalls
[i
].end
))
1704 if (methcalls
[i
].stop_at
!= NULL
)
1705 return find_objc_msgcall_submethod (methcalls
[i
].stop_at
,
1714 extern initialize_file_ftype _initialize_objc_language
; /* -Wmissing-prototypes */
1717 _initialize_objc_language (void)
1719 add_language (&objc_language_defn
);
1720 add_info ("selectors", selectors_info
, /* INFO SELECTORS command. */
1721 "All Objective-C selectors, or those matching REGEXP.");
1722 add_info ("classes", classes_info
, /* INFO CLASSES command. */
1723 "All Objective-C classes, or those matching REGEXP.");
1724 add_com ("print-object", class_vars
, print_object_command
,
1725 "Ask an Objective-C object to print itself.");
1726 add_com_alias ("po", "print-object", class_vars
, 1);
1730 read_objc_method (CORE_ADDR addr
, struct objc_method
*method
)
1732 method
->name
= read_memory_unsigned_integer (addr
+ 0, 4);
1733 method
->types
= read_memory_unsigned_integer (addr
+ 4, 4);
1734 method
->imp
= read_memory_unsigned_integer (addr
+ 8, 4);
1738 unsigned long read_objc_methlist_nmethods (CORE_ADDR addr
)
1740 return read_memory_unsigned_integer (addr
+ 4, 4);
1744 read_objc_methlist_method (CORE_ADDR addr
, unsigned long num
,
1745 struct objc_method
*method
)
1747 gdb_assert (num
< read_objc_methlist_nmethods (addr
));
1748 read_objc_method (addr
+ 8 + (12 * num
), method
);
1752 read_objc_object (CORE_ADDR addr
, struct objc_object
*object
)
1754 object
->isa
= read_memory_unsigned_integer (addr
, 4);
1758 read_objc_super (CORE_ADDR addr
, struct objc_super
*super
)
1760 super
->receiver
= read_memory_unsigned_integer (addr
, 4);
1761 super
->class = read_memory_unsigned_integer (addr
+ 4, 4);
1765 read_objc_class (CORE_ADDR addr
, struct objc_class
*class)
1767 class->isa
= read_memory_unsigned_integer (addr
, 4);
1768 class->super_class
= read_memory_unsigned_integer (addr
+ 4, 4);
1769 class->name
= read_memory_unsigned_integer (addr
+ 8, 4);
1770 class->version
= read_memory_unsigned_integer (addr
+ 12, 4);
1771 class->info
= read_memory_unsigned_integer (addr
+ 16, 4);
1772 class->instance_size
= read_memory_unsigned_integer (addr
+ 18, 4);
1773 class->ivars
= read_memory_unsigned_integer (addr
+ 24, 4);
1774 class->methods
= read_memory_unsigned_integer (addr
+ 28, 4);
1775 class->cache
= read_memory_unsigned_integer (addr
+ 32, 4);
1776 class->protocols
= read_memory_unsigned_integer (addr
+ 36, 4);
1780 find_implementation_from_class (CORE_ADDR
class, CORE_ADDR sel
)
1782 CORE_ADDR subclass
= class;
1784 while (subclass
!= 0)
1787 struct objc_class class_str
;
1788 unsigned mlistnum
= 0;
1790 read_objc_class (subclass
, &class_str
);
1795 unsigned long nmethods
;
1798 mlist
= read_memory_unsigned_integer (class_str
.methods
+
1803 nmethods
= read_objc_methlist_nmethods (mlist
);
1805 for (i
= 0; i
< nmethods
; i
++)
1807 struct objc_method meth_str
;
1808 read_objc_methlist_method (mlist
, i
, &meth_str
);
1812 "checking method 0x%lx against selector 0x%lx\n",
1813 meth_str
.name
, sel
);
1816 if (meth_str
.name
== sel
)
1817 /* FIXME: hppa arch was doing a pointer dereference
1818 here. There needs to be a better way to do that. */
1819 return meth_str
.imp
;
1823 subclass
= class_str
.super_class
;
1830 find_implementation (CORE_ADDR object
, CORE_ADDR sel
)
1832 struct objc_object ostr
;
1836 read_objc_object (object
, &ostr
);
1840 return find_implementation_from_class (ostr
.isa
, sel
);
1843 #define OBJC_FETCH_POINTER_ARGUMENT(argi) \
1844 FETCH_POINTER_ARGUMENT (get_current_frame (), argi, builtin_type_void_func_ptr)
1847 resolve_msgsend (CORE_ADDR pc
, CORE_ADDR
*new_pc
)
1853 object
= OBJC_FETCH_POINTER_ARGUMENT (0);
1854 sel
= OBJC_FETCH_POINTER_ARGUMENT (1);
1856 res
= find_implementation (object
, sel
);
1865 resolve_msgsend_stret (CORE_ADDR pc
, CORE_ADDR
*new_pc
)
1871 object
= OBJC_FETCH_POINTER_ARGUMENT (1);
1872 sel
= OBJC_FETCH_POINTER_ARGUMENT (2);
1874 res
= find_implementation (object
, sel
);
1883 resolve_msgsend_super (CORE_ADDR pc
, CORE_ADDR
*new_pc
)
1885 struct objc_super sstr
;
1891 super
= OBJC_FETCH_POINTER_ARGUMENT (0);
1892 sel
= OBJC_FETCH_POINTER_ARGUMENT (1);
1894 read_objc_super (super
, &sstr
);
1895 if (sstr
.class == 0)
1898 res
= find_implementation_from_class (sstr
.class, sel
);
1907 resolve_msgsend_super_stret (CORE_ADDR pc
, CORE_ADDR
*new_pc
)
1909 struct objc_super sstr
;
1915 super
= OBJC_FETCH_POINTER_ARGUMENT (1);
1916 sel
= OBJC_FETCH_POINTER_ARGUMENT (2);
1918 read_objc_super (super
, &sstr
);
1919 if (sstr
.class == 0)
1922 res
= find_implementation_from_class (sstr
.class, sel
);