1 /* Objective-C language support routines for GDB, the GNU debugger.
3 Copyright (C) 2002, 2003, 2004, 2005, 2007 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., 51 Franklin Street, Fifth Floor,
23 Boston, MA 02110-1301, USA. */
28 #include "expression.h"
29 #include "parser-defs.h"
32 #include "objc-lang.h"
33 #include "exceptions.h"
34 #include "complaints.h"
38 #include "gdb_string.h" /* for strchr */
39 #include "target.h" /* for target_has_execution */
43 #include "gdb_regex.h"
48 #include "gdb_assert.h"
58 CORE_ADDR super_class
;
80 /* Lookup a structure type named "struct NAME", visible in lexical
81 block BLOCK. If NOERR is nonzero, return zero if NAME is not
85 lookup_struct_typedef (char *name
, struct block
*block
, int noerr
)
89 sym
= lookup_symbol (name
, block
, STRUCT_DOMAIN
, 0,
90 (struct symtab
**) NULL
);
97 error (_("No struct type named %s."), name
);
99 if (TYPE_CODE (SYMBOL_TYPE (sym
)) != TYPE_CODE_STRUCT
)
104 error (_("This context has class, union or enum %s, not a struct."),
111 lookup_objc_class (char *classname
)
113 struct value
* function
, *classval
;
115 if (! target_has_execution
)
117 /* Can't call into inferior to lookup class. */
121 if (lookup_minimal_symbol("objc_lookUpClass", 0, 0))
122 function
= find_function_in_inferior("objc_lookUpClass");
123 else if (lookup_minimal_symbol ("objc_lookup_class", 0, 0))
124 function
= find_function_in_inferior("objc_lookup_class");
127 complaint (&symfile_complaints
, _("no way to lookup Objective-C classes"));
131 classval
= value_string (classname
, strlen (classname
) + 1);
132 classval
= value_coerce_array (classval
);
133 return (CORE_ADDR
) value_as_long (call_function_by_hand (function
,
138 lookup_child_selector (char *selname
)
140 struct value
* function
, *selstring
;
142 if (! target_has_execution
)
144 /* Can't call into inferior to lookup selector. */
148 if (lookup_minimal_symbol("sel_getUid", 0, 0))
149 function
= find_function_in_inferior("sel_getUid");
150 else if (lookup_minimal_symbol ("sel_get_any_uid", 0, 0))
151 function
= find_function_in_inferior("sel_get_any_uid");
154 complaint (&symfile_complaints
, _("no way to lookup Objective-C selectors"));
158 selstring
= value_coerce_array (value_string (selname
,
159 strlen (selname
) + 1));
160 return value_as_long (call_function_by_hand (function
, 1, &selstring
));
164 value_nsstring (char *ptr
, int len
)
166 struct value
*stringValue
[3];
167 struct value
*function
, *nsstringValue
;
171 if (!target_has_execution
)
172 return 0; /* Can't call into inferior to create NSString. */
174 sym
= lookup_struct_typedef("NSString", 0, 1);
176 sym
= lookup_struct_typedef("NXString", 0, 1);
178 type
= lookup_pointer_type(builtin_type_void
);
180 type
= lookup_pointer_type(SYMBOL_TYPE (sym
));
182 stringValue
[2] = value_string(ptr
, len
);
183 stringValue
[2] = value_coerce_array(stringValue
[2]);
184 /* _NSNewStringFromCString replaces "istr" after Lantern2A. */
185 if (lookup_minimal_symbol("_NSNewStringFromCString", 0, 0))
187 function
= find_function_in_inferior("_NSNewStringFromCString");
188 nsstringValue
= call_function_by_hand(function
, 1, &stringValue
[2]);
190 else if (lookup_minimal_symbol("istr", 0, 0))
192 function
= find_function_in_inferior("istr");
193 nsstringValue
= call_function_by_hand(function
, 1, &stringValue
[2]);
195 else if (lookup_minimal_symbol("+[NSString stringWithCString:]", 0, 0))
197 function
= find_function_in_inferior("+[NSString stringWithCString:]");
198 stringValue
[0] = value_from_longest
199 (builtin_type_long
, lookup_objc_class ("NSString"));
200 stringValue
[1] = value_from_longest
201 (builtin_type_long
, lookup_child_selector ("stringWithCString:"));
202 nsstringValue
= call_function_by_hand(function
, 3, &stringValue
[0]);
205 error (_("NSString: internal error -- no way to create new NSString"));
207 deprecated_set_value_type (nsstringValue
, type
);
208 return nsstringValue
;
211 /* Objective-C name demangling. */
214 objc_demangle (const char *mangled
, int options
)
216 char *demangled
, *cp
;
218 if (mangled
[0] == '_' &&
219 (mangled
[1] == 'i' || mangled
[1] == 'c') &&
222 cp
= demangled
= xmalloc(strlen(mangled
) + 2);
224 if (mangled
[1] == 'i')
225 *cp
++ = '-'; /* for instance method */
227 *cp
++ = '+'; /* for class method */
229 *cp
++ = '['; /* opening left brace */
230 strcpy(cp
, mangled
+3); /* tack on the rest of the mangled name */
232 while (*cp
&& *cp
== '_')
233 cp
++; /* skip any initial underbars in class name */
235 cp
= strchr(cp
, '_');
236 if (!cp
) /* find first non-initial underbar */
238 xfree(demangled
); /* not mangled name */
241 if (cp
[1] == '_') { /* easy case: no category name */
242 *cp
++ = ' '; /* replace two '_' with one ' ' */
243 strcpy(cp
, mangled
+ (cp
- demangled
) + 2);
246 *cp
++ = '('; /* less easy case: category name */
247 cp
= strchr(cp
, '_');
250 xfree(demangled
); /* not mangled name */
254 *cp
++ = ' '; /* overwriting 1st char of method name... */
255 strcpy(cp
, mangled
+ (cp
- demangled
)); /* get it back */
258 while (*cp
&& *cp
== '_')
259 cp
++; /* skip any initial underbars in method name */
263 *cp
= ':'; /* replace remaining '_' with ':' */
265 *cp
++ = ']'; /* closing right brace */
266 *cp
++ = 0; /* string terminator */
270 return NULL
; /* Not an objc mangled name. */
273 /* Print the character C on STREAM as part of the contents of a
274 literal string whose delimiter is QUOTER. Note that that format
275 for printing characters and strings is language specific. */
278 objc_emit_char (int c
, struct ui_file
*stream
, int quoter
)
281 c
&= 0xFF; /* Avoid sign bit follies. */
283 if (PRINT_LITERAL_FORM (c
))
285 if (c
== '\\' || c
== quoter
)
287 fputs_filtered ("\\", stream
);
289 fprintf_filtered (stream
, "%c", c
);
296 fputs_filtered ("\\n", stream
);
299 fputs_filtered ("\\b", stream
);
302 fputs_filtered ("\\t", stream
);
305 fputs_filtered ("\\f", stream
);
308 fputs_filtered ("\\r", stream
);
311 fputs_filtered ("\\e", stream
);
314 fputs_filtered ("\\a", stream
);
317 fprintf_filtered (stream
, "\\%.3o", (unsigned int) c
);
324 objc_printchar (int c
, struct ui_file
*stream
)
326 fputs_filtered ("'", stream
);
327 objc_emit_char (c
, stream
, '\'');
328 fputs_filtered ("'", stream
);
331 /* Print the character string STRING, printing at most LENGTH
332 characters. Printing stops early if the number hits print_max;
333 repeat counts are printed as appropriate. Print ellipses at the
334 end if we had to stop before printing LENGTH characters, or if
338 objc_printstr (struct ui_file
*stream
, const gdb_byte
*string
,
339 unsigned int length
, int width
, int force_ellipses
)
342 unsigned int things_printed
= 0;
346 /* If the string was not truncated due to `set print elements', and
347 the last byte of it is a null, we don't print that, in
348 traditional C style. */
349 if ((!force_ellipses
) && length
> 0 && string
[length
-1] == '\0')
354 fputs_filtered ("\"\"", stream
);
358 for (i
= 0; i
< length
&& things_printed
< print_max
; ++i
)
360 /* Position of the character we are examining to see whether it
363 /* Number of repetitions we have detected so far. */
370 fputs_filtered (", ", stream
);
376 while (rep1
< length
&& string
[rep1
] == string
[i
])
382 if (reps
> repeat_count_threshold
)
387 fputs_filtered ("\\\", ", stream
);
389 fputs_filtered ("\", ", stream
);
392 objc_printchar (string
[i
], stream
);
393 fprintf_filtered (stream
, " <repeats %u times>", reps
);
395 things_printed
+= repeat_count_threshold
;
403 fputs_filtered ("\\\"", stream
);
405 fputs_filtered ("\"", stream
);
408 objc_emit_char (string
[i
], stream
, '"');
413 /* Terminate the quotes if necessary. */
417 fputs_filtered ("\\\"", stream
);
419 fputs_filtered ("\"", stream
);
422 if (force_ellipses
|| i
< length
)
423 fputs_filtered ("...", stream
);
426 /* Create a fundamental C type using default reasonable for the
429 Some object/debugging file formats (DWARF version 1, COFF, etc) do
430 not define fundamental types such as "int" or "double". Others
431 (stabs or DWARF version 2, etc) do define fundamental types. For
432 the formats which don't provide fundamental types, gdb can create
433 such types using this function.
435 FIXME: Some compilers distinguish explicitly signed integral types
436 (signed short, signed int, signed long) from "regular" integral
437 types (short, int, long) in the debugging information. There is
438 some disagreement as to how useful this feature is. In particular,
439 gcc does not support this. Also, only some debugging formats allow
440 the distinction to be passed on to a debugger. For now, we always
441 just use "short", "int", or "long" as the type name, for both the
442 implicit and explicitly signed types. This also makes life easier
443 for the gdb test suite since we don't have to account for the
444 differences in output depending upon what the compiler and
445 debugging format support. We will probably have to re-examine the
446 issue when gdb starts taking it's fundamental type information
447 directly from the debugging information supplied by the compiler.
451 objc_create_fundamental_type (struct objfile
*objfile
, int typeid)
453 struct type
*type
= NULL
;
458 /* FIXME: For now, if we are asked to produce a type not in
459 this language, create the equivalent of a C integer type
460 with the name "<?type?>". When all the dust settles from
461 the type reconstruction work, this should probably become
463 type
= init_type (TYPE_CODE_INT
,
464 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
465 0, "<?type?>", objfile
);
466 warning (_("internal error: no C/C++ fundamental type %d"), typeid);
469 type
= init_type (TYPE_CODE_VOID
,
470 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
474 type
= init_type (TYPE_CODE_INT
,
475 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
479 type
= init_type (TYPE_CODE_INT
,
480 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
481 0, "signed char", objfile
);
483 case FT_UNSIGNED_CHAR
:
484 type
= init_type (TYPE_CODE_INT
,
485 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
486 TYPE_FLAG_UNSIGNED
, "unsigned char", objfile
);
489 type
= init_type (TYPE_CODE_INT
,
490 TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
491 0, "short", objfile
);
493 case FT_SIGNED_SHORT
:
494 type
= init_type (TYPE_CODE_INT
,
495 TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
496 0, "short", objfile
); /* FIXME-fnf */
498 case FT_UNSIGNED_SHORT
:
499 type
= init_type (TYPE_CODE_INT
,
500 TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
501 TYPE_FLAG_UNSIGNED
, "unsigned short", objfile
);
504 type
= init_type (TYPE_CODE_INT
,
505 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
508 case FT_SIGNED_INTEGER
:
509 type
= init_type (TYPE_CODE_INT
,
510 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
511 0, "int", objfile
); /* FIXME -fnf */
513 case FT_UNSIGNED_INTEGER
:
514 type
= init_type (TYPE_CODE_INT
,
515 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
516 TYPE_FLAG_UNSIGNED
, "unsigned int", objfile
);
519 type
= init_type (TYPE_CODE_INT
,
520 TARGET_LONG_BIT
/ TARGET_CHAR_BIT
,
524 type
= init_type (TYPE_CODE_INT
,
525 TARGET_LONG_BIT
/ TARGET_CHAR_BIT
,
526 0, "long", objfile
); /* FIXME -fnf */
528 case FT_UNSIGNED_LONG
:
529 type
= init_type (TYPE_CODE_INT
,
530 TARGET_LONG_BIT
/ TARGET_CHAR_BIT
,
531 TYPE_FLAG_UNSIGNED
, "unsigned long", objfile
);
534 type
= init_type (TYPE_CODE_INT
,
535 TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
,
536 0, "long long", objfile
);
538 case FT_SIGNED_LONG_LONG
:
539 type
= init_type (TYPE_CODE_INT
,
540 TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
,
541 0, "signed long long", objfile
);
543 case FT_UNSIGNED_LONG_LONG
:
544 type
= init_type (TYPE_CODE_INT
,
545 TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
,
546 TYPE_FLAG_UNSIGNED
, "unsigned long long", objfile
);
549 type
= init_type (TYPE_CODE_FLT
,
550 TARGET_FLOAT_BIT
/ TARGET_CHAR_BIT
,
551 0, "float", objfile
);
553 case FT_DBL_PREC_FLOAT
:
554 type
= init_type (TYPE_CODE_FLT
,
555 TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
556 0, "double", objfile
);
558 case FT_EXT_PREC_FLOAT
:
559 type
= init_type (TYPE_CODE_FLT
,
560 TARGET_LONG_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
561 0, "long double", objfile
);
567 /* Determine if we are currently in the Objective-C dispatch function.
568 If so, get the address of the method function that the dispatcher
569 would call and use that as the function to step into instead. Also
570 skip over the trampoline for the function (if any). This is better
571 for the user since they are only interested in stepping into the
572 method function anyway. */
574 objc_skip_trampoline (CORE_ADDR stop_pc
)
576 CORE_ADDR real_stop_pc
;
577 CORE_ADDR method_stop_pc
;
579 real_stop_pc
= gdbarch_skip_trampoline_code (current_gdbarch
, stop_pc
);
581 if (real_stop_pc
!= 0)
582 find_objc_msgcall (real_stop_pc
, &method_stop_pc
);
584 find_objc_msgcall (stop_pc
, &method_stop_pc
);
588 real_stop_pc
= gdbarch_skip_trampoline_code
589 (current_gdbarch
, method_stop_pc
);
590 if (real_stop_pc
== 0)
591 real_stop_pc
= method_stop_pc
;
598 /* Table mapping opcodes into strings for printing operators
599 and precedences of the operators. */
601 static const struct op_print objc_op_print_tab
[] =
603 {",", BINOP_COMMA
, PREC_COMMA
, 0},
604 {"=", BINOP_ASSIGN
, PREC_ASSIGN
, 1},
605 {"||", BINOP_LOGICAL_OR
, PREC_LOGICAL_OR
, 0},
606 {"&&", BINOP_LOGICAL_AND
, PREC_LOGICAL_AND
, 0},
607 {"|", BINOP_BITWISE_IOR
, PREC_BITWISE_IOR
, 0},
608 {"^", BINOP_BITWISE_XOR
, PREC_BITWISE_XOR
, 0},
609 {"&", BINOP_BITWISE_AND
, PREC_BITWISE_AND
, 0},
610 {"==", BINOP_EQUAL
, PREC_EQUAL
, 0},
611 {"!=", BINOP_NOTEQUAL
, PREC_EQUAL
, 0},
612 {"<=", BINOP_LEQ
, PREC_ORDER
, 0},
613 {">=", BINOP_GEQ
, PREC_ORDER
, 0},
614 {">", BINOP_GTR
, PREC_ORDER
, 0},
615 {"<", BINOP_LESS
, PREC_ORDER
, 0},
616 {">>", BINOP_RSH
, PREC_SHIFT
, 0},
617 {"<<", BINOP_LSH
, PREC_SHIFT
, 0},
618 {"+", BINOP_ADD
, PREC_ADD
, 0},
619 {"-", BINOP_SUB
, PREC_ADD
, 0},
620 {"*", BINOP_MUL
, PREC_MUL
, 0},
621 {"/", BINOP_DIV
, PREC_MUL
, 0},
622 {"%", BINOP_REM
, PREC_MUL
, 0},
623 {"@", BINOP_REPEAT
, PREC_REPEAT
, 0},
624 {"-", UNOP_NEG
, PREC_PREFIX
, 0},
625 {"!", UNOP_LOGICAL_NOT
, PREC_PREFIX
, 0},
626 {"~", UNOP_COMPLEMENT
, PREC_PREFIX
, 0},
627 {"*", UNOP_IND
, PREC_PREFIX
, 0},
628 {"&", UNOP_ADDR
, PREC_PREFIX
, 0},
629 {"sizeof ", UNOP_SIZEOF
, PREC_PREFIX
, 0},
630 {"++", UNOP_PREINCREMENT
, PREC_PREFIX
, 0},
631 {"--", UNOP_PREDECREMENT
, PREC_PREFIX
, 0},
632 {NULL
, OP_NULL
, PREC_NULL
, 0}
635 struct type
** const (objc_builtin_types
[]) =
642 &builtin_type_double
,
644 &builtin_type_long_long
,
645 &builtin_type_signed_char
,
646 &builtin_type_unsigned_char
,
647 &builtin_type_unsigned_short
,
648 &builtin_type_unsigned_int
,
649 &builtin_type_unsigned_long
,
650 &builtin_type_unsigned_long_long
,
651 &builtin_type_long_double
,
652 &builtin_type_complex
,
653 &builtin_type_double_complex
,
657 const struct language_defn objc_language_defn
= {
658 "objective-c", /* Language name */
665 &exp_descriptor_standard
,
669 objc_printchar
, /* Print a character constant */
670 objc_printstr
, /* Function to print string constant */
672 objc_create_fundamental_type
, /* Create fundamental type in this language */
673 c_print_type
, /* Print a type using appropriate syntax */
674 c_val_print
, /* Print a value using appropriate syntax */
675 c_value_print
, /* Print a top-level value */
676 objc_skip_trampoline
, /* Language specific skip_trampoline */
677 value_of_this
, /* value_of_this */
678 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
679 basic_lookup_transparent_type
,/* lookup_transparent_type */
680 objc_demangle
, /* Language specific symbol demangler */
681 NULL
, /* Language specific class_name_from_physname */
682 objc_op_print_tab
, /* Expression operators for printing */
683 1, /* C-style arrays */
684 0, /* String lower bound */
685 &builtin_type_char
, /* Type of string elements */
686 default_word_break_characters
,
687 NULL
, /* FIXME: la_language_arch_info. */
688 default_print_array_index
,
694 * Following functions help construct Objective-C message calls
697 struct selname
/* For parsing Objective-C. */
699 struct selname
*next
;
704 static int msglist_len
;
705 static struct selname
*selname_chain
;
706 static char *msglist_sel
;
711 struct selname
*new =
712 (struct selname
*) xmalloc (sizeof (struct selname
));
714 new->next
= selname_chain
;
715 new->msglist_len
= msglist_len
;
716 new->msglist_sel
= msglist_sel
;
718 msglist_sel
= (char *)xmalloc(1);
724 add_msglist(struct stoken
*str
, int addcolon
)
729 if (str
== 0) { /* Unnamed arg, or... */
730 if (addcolon
== 0) { /* variable number of args. */
740 len
= plen
+ strlen(msglist_sel
) + 2;
741 s
= (char *)xmalloc(len
);
742 strcpy(s
, msglist_sel
);
757 int val
= msglist_len
;
758 struct selname
*sel
= selname_chain
;
759 char *p
= msglist_sel
;
762 selname_chain
= sel
->next
;
763 msglist_len
= sel
->msglist_len
;
764 msglist_sel
= sel
->msglist_sel
;
765 selid
= lookup_child_selector(p
);
767 error (_("Can't find selector \"%s\""), p
);
768 write_exp_elt_longcst (selid
);
770 write_exp_elt_longcst (val
); /* Number of args */
777 * Function: specialcmp (char *a, char *b)
779 * Special strcmp: treats ']' and ' ' as end-of-string.
780 * Used for qsorting lists of objc methods (either by class or selector).
784 specialcmp (char *a
, char *b
)
786 while (*a
&& *a
!= ' ' && *a
!= ']' && *b
&& *b
!= ' ' && *b
!= ']')
792 if (*a
&& *a
!= ' ' && *a
!= ']')
793 return 1; /* a is longer therefore greater */
794 if (*b
&& *b
!= ' ' && *b
!= ']')
795 return -1; /* a is shorter therefore lesser */
796 return 0; /* a and b are identical */
800 * Function: compare_selectors (const void *, const void *)
802 * Comparison function for use with qsort. Arguments are symbols or
803 * msymbols Compares selector part of objc method name alphabetically.
807 compare_selectors (const void *a
, const void *b
)
811 aname
= SYMBOL_PRINT_NAME (*(struct symbol
**) a
);
812 bname
= SYMBOL_PRINT_NAME (*(struct symbol
**) b
);
813 if (aname
== NULL
|| bname
== NULL
)
814 error (_("internal: compare_selectors(1)"));
816 aname
= strchr(aname
, ' ');
817 bname
= strchr(bname
, ' ');
818 if (aname
== NULL
|| bname
== NULL
)
819 error (_("internal: compare_selectors(2)"));
821 return specialcmp (aname
+1, bname
+1);
825 * Function: selectors_info (regexp, from_tty)
827 * Implements the "Info selectors" command. Takes an optional regexp
828 * arg. Lists all objective c selectors that match the regexp. Works
829 * by grepping thru all symbols for objective c methods. Output list
830 * is sorted and uniqued.
834 selectors_info (char *regexp
, int from_tty
)
836 struct objfile
*objfile
;
837 struct minimal_symbol
*msymbol
;
845 struct symbol
**sym_arr
;
849 strcpy(myregexp
, ".*]"); /* Null input, match all objc methods. */
852 if (*regexp
== '+' || *regexp
== '-')
853 { /* User wants only class methods or only instance methods. */
854 plusminus
= *regexp
++;
855 while (*regexp
== ' ' || *regexp
== '\t')
859 strcpy(myregexp
, ".*]");
862 strcpy(myregexp
, regexp
);
863 if (myregexp
[strlen(myregexp
) - 1] == '$') /* end of selector */
864 myregexp
[strlen(myregexp
) - 1] = ']'; /* end of method name */
866 strcat(myregexp
, ".*]");
872 val
= re_comp (myregexp
);
874 error (_("Invalid regexp (%s): %s"), val
, regexp
);
877 /* First time thru is JUST to get max length and count. */
878 ALL_MSYMBOLS (objfile
, msymbol
)
881 name
= SYMBOL_NATURAL_NAME (msymbol
);
883 (name
[0] == '-' || name
[0] == '+') &&
884 name
[1] == '[') /* Got a method name. */
886 /* Filter for class/instance methods. */
887 if (plusminus
&& name
[0] != plusminus
)
889 /* Find selector part. */
890 name
= (char *) strchr(name
+2, ' ');
891 if (regexp
== NULL
|| re_exec(++name
) != 0)
893 char *mystart
= name
;
894 char *myend
= (char *) strchr(mystart
, ']');
896 if (myend
&& (myend
- mystart
> maxlen
))
897 maxlen
= myend
- mystart
; /* Get longest selector. */
904 printf_filtered (_("Selectors matching \"%s\":\n\n"),
905 regexp
? regexp
: "*");
907 sym_arr
= alloca (matches
* sizeof (struct symbol
*));
909 ALL_MSYMBOLS (objfile
, msymbol
)
912 name
= SYMBOL_NATURAL_NAME (msymbol
);
914 (name
[0] == '-' || name
[0] == '+') &&
915 name
[1] == '[') /* Got a method name. */
917 /* Filter for class/instance methods. */
918 if (plusminus
&& name
[0] != plusminus
)
920 /* Find selector part. */
921 name
= (char *) strchr(name
+2, ' ');
922 if (regexp
== NULL
|| re_exec(++name
) != 0)
923 sym_arr
[matches
++] = (struct symbol
*) msymbol
;
927 qsort (sym_arr
, matches
, sizeof (struct minimal_symbol
*),
929 /* Prevent compare on first iteration. */
931 for (ix
= 0; ix
< matches
; ix
++) /* Now do the output. */
936 name
= SYMBOL_NATURAL_NAME (sym_arr
[ix
]);
937 name
= strchr (name
, ' ') + 1;
938 if (p
[0] && specialcmp(name
, p
) == 0)
939 continue; /* Seen this one already (not unique). */
941 /* Copy selector part. */
942 while (*name
&& *name
!= ']')
945 /* Print in columns. */
946 puts_filtered_tabular(asel
, maxlen
+ 1, 0);
951 printf_filtered (_("No selectors matching \"%s\"\n"), regexp
? regexp
: "*");
955 * Function: compare_classes (const void *, const void *)
957 * Comparison function for use with qsort. Arguments are symbols or
958 * msymbols Compares class part of objc method name alphabetically.
962 compare_classes (const void *a
, const void *b
)
966 aname
= SYMBOL_PRINT_NAME (*(struct symbol
**) a
);
967 bname
= SYMBOL_PRINT_NAME (*(struct symbol
**) b
);
968 if (aname
== NULL
|| bname
== NULL
)
969 error (_("internal: compare_classes(1)"));
971 return specialcmp (aname
+1, bname
+1);
975 * Function: classes_info(regexp, from_tty)
977 * Implements the "info classes" command for objective c classes.
978 * Lists all objective c classes that match the optional regexp.
979 * Works by grepping thru the list of objective c methods. List will
980 * be sorted and uniqued (since one class may have many methods).
981 * BUGS: will not list a class that has no methods.
985 classes_info (char *regexp
, int from_tty
)
987 struct objfile
*objfile
;
988 struct minimal_symbol
*msymbol
;
996 struct symbol
**sym_arr
;
999 strcpy(myregexp
, ".* "); /* Null input: match all objc classes. */
1002 strcpy(myregexp
, regexp
);
1003 if (myregexp
[strlen(myregexp
) - 1] == '$')
1004 /* In the method name, the end of the class name is marked by ' '. */
1005 myregexp
[strlen(myregexp
) - 1] = ' ';
1007 strcat(myregexp
, ".* ");
1012 val
= re_comp (myregexp
);
1014 error (_("Invalid regexp (%s): %s"), val
, regexp
);
1017 /* First time thru is JUST to get max length and count. */
1018 ALL_MSYMBOLS (objfile
, msymbol
)
1021 name
= SYMBOL_NATURAL_NAME (msymbol
);
1023 (name
[0] == '-' || name
[0] == '+') &&
1024 name
[1] == '[') /* Got a method name. */
1025 if (regexp
== NULL
|| re_exec(name
+2) != 0)
1027 /* Compute length of classname part. */
1028 char *mystart
= name
+ 2;
1029 char *myend
= (char *) strchr(mystart
, ' ');
1031 if (myend
&& (myend
- mystart
> maxlen
))
1032 maxlen
= myend
- mystart
;
1038 printf_filtered (_("Classes matching \"%s\":\n\n"),
1039 regexp
? regexp
: "*");
1040 sym_arr
= alloca (matches
* sizeof (struct symbol
*));
1042 ALL_MSYMBOLS (objfile
, msymbol
)
1045 name
= SYMBOL_NATURAL_NAME (msymbol
);
1047 (name
[0] == '-' || name
[0] == '+') &&
1048 name
[1] == '[') /* Got a method name. */
1049 if (regexp
== NULL
|| re_exec(name
+2) != 0)
1050 sym_arr
[matches
++] = (struct symbol
*) msymbol
;
1053 qsort (sym_arr
, matches
, sizeof (struct minimal_symbol
*),
1055 /* Prevent compare on first iteration. */
1057 for (ix
= 0; ix
< matches
; ix
++) /* Now do the output. */
1062 name
= SYMBOL_NATURAL_NAME (sym_arr
[ix
]);
1064 if (p
[0] && specialcmp(name
, p
) == 0)
1065 continue; /* Seen this one already (not unique). */
1067 /* Copy class part of method name. */
1068 while (*name
&& *name
!= ' ')
1071 /* Print in columns. */
1072 puts_filtered_tabular(aclass
, maxlen
+ 1, 0);
1077 printf_filtered (_("No classes matching \"%s\"\n"), regexp
? regexp
: "*");
1081 * Function: find_imps (char *selector, struct symbol **sym_arr)
1083 * Input: a string representing a selector
1084 * a pointer to an array of symbol pointers
1085 * possibly a pointer to a symbol found by the caller.
1087 * Output: number of methods that implement that selector. Side
1088 * effects: The array of symbol pointers is filled with matching syms.
1090 * By analogy with function "find_methods" (symtab.c), builds a list
1091 * of symbols matching the ambiguous input, so that "decode_line_2"
1092 * (symtab.c) can list them and ask the user to choose one or more.
1093 * In this case the matches are objective c methods
1094 * ("implementations") matching an objective c selector.
1096 * Note that it is possible for a normal (c-style) function to have
1097 * the same name as an objective c selector. To prevent the selector
1098 * from eclipsing the function, we allow the caller (decode_line_1) to
1099 * search for such a function first, and if it finds one, pass it in
1100 * to us. We will then integrate it into the list. We also search
1101 * for one here, among the minsyms.
1103 * NOTE: if NUM_DEBUGGABLE is non-zero, the sym_arr will be divided
1104 * into two parts: debuggable (struct symbol) syms, and
1105 * non_debuggable (struct minimal_symbol) syms. The debuggable
1106 * ones will come first, before NUM_DEBUGGABLE (which will thus
1107 * be the index of the first non-debuggable one).
1111 * Function: total_number_of_imps (char *selector);
1113 * Input: a string representing a selector
1114 * Output: number of methods that implement that selector.
1116 * By analogy with function "total_number_of_methods", this allows
1117 * decode_line_1 (symtab.c) to detect if there are objective c methods
1118 * matching the input, and to allocate an array of pointers to them
1119 * which can be manipulated by "decode_line_2" (also in symtab.c).
1123 parse_selector (char *method
, char **selector
)
1127 int found_quote
= 0;
1129 char *nselector
= NULL
;
1131 gdb_assert (selector
!= NULL
);
1135 while (isspace (*s1
))
1142 while (isspace (*s1
))
1149 if (isalnum (*s2
) || (*s2
== '_') || (*s2
== ':'))
1151 else if (isspace (*s2
))
1153 else if ((*s2
== '\0') || (*s2
== '\''))
1161 while (isspace (*s2
))
1167 while (isspace (*s2
))
1171 if (selector
!= NULL
)
1172 *selector
= nselector
;
1178 parse_method (char *method
, char *type
, char **class,
1179 char **category
, char **selector
)
1183 int found_quote
= 0;
1186 char *nclass
= NULL
;
1187 char *ncategory
= NULL
;
1188 char *nselector
= NULL
;
1190 gdb_assert (type
!= NULL
);
1191 gdb_assert (class != NULL
);
1192 gdb_assert (category
!= NULL
);
1193 gdb_assert (selector
!= NULL
);
1197 while (isspace (*s1
))
1204 while (isspace (*s1
))
1207 if ((s1
[0] == '+') || (s1
[0] == '-'))
1210 while (isspace (*s1
))
1218 while (isalnum (*s1
) || (*s1
== '_'))
1222 while (isspace (*s2
))
1228 while (isspace (*s2
))
1231 while (isalnum (*s2
) || (*s2
== '_'))
1236 /* Truncate the class name now that we're not using the open paren. */
1243 if (isalnum (*s2
) || (*s2
== '_') || (*s2
== ':'))
1245 else if (isspace (*s2
))
1247 else if (*s2
== ']')
1256 while (isspace (*s2
))
1263 while (isspace (*s2
))
1271 if (category
!= NULL
)
1272 *category
= ncategory
;
1273 if (selector
!= NULL
)
1274 *selector
= nselector
;
1280 find_methods (struct symtab
*symtab
, char type
,
1281 const char *class, const char *category
,
1282 const char *selector
, struct symbol
**syms
,
1283 unsigned int *nsym
, unsigned int *ndebug
)
1285 struct objfile
*objfile
= NULL
;
1286 struct minimal_symbol
*msymbol
= NULL
;
1287 struct block
*block
= NULL
;
1288 struct symbol
*sym
= NULL
;
1290 char *symname
= NULL
;
1293 char *nclass
= NULL
;
1294 char *ncategory
= NULL
;
1295 char *nselector
= NULL
;
1297 unsigned int csym
= 0;
1298 unsigned int cdebug
= 0;
1300 static char *tmp
= NULL
;
1301 static unsigned int tmplen
= 0;
1303 gdb_assert (nsym
!= NULL
);
1304 gdb_assert (ndebug
!= NULL
);
1307 block
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab
), STATIC_BLOCK
);
1309 ALL_MSYMBOLS (objfile
, msymbol
)
1313 if ((msymbol
->type
!= mst_text
) && (msymbol
->type
!= mst_file_text
))
1314 /* Not a function or method. */
1318 if ((SYMBOL_VALUE_ADDRESS (msymbol
) < BLOCK_START (block
)) ||
1319 (SYMBOL_VALUE_ADDRESS (msymbol
) >= BLOCK_END (block
)))
1320 /* Not in the specified symtab. */
1323 symname
= SYMBOL_NATURAL_NAME (msymbol
);
1324 if (symname
== NULL
)
1327 if ((symname
[0] != '-' && symname
[0] != '+') || (symname
[1] != '['))
1328 /* Not a method name. */
1331 while ((strlen (symname
) + 1) >= tmplen
)
1333 tmplen
= (tmplen
== 0) ? 1024 : tmplen
* 2;
1334 tmp
= xrealloc (tmp
, tmplen
);
1336 strcpy (tmp
, symname
);
1338 if (parse_method (tmp
, &ntype
, &nclass
, &ncategory
, &nselector
) == NULL
)
1341 if ((type
!= '\0') && (ntype
!= type
))
1345 && ((nclass
== NULL
) || (strcmp (class, nclass
) != 0)))
1348 if ((category
!= NULL
) &&
1349 ((ncategory
== NULL
) || (strcmp (category
, ncategory
) != 0)))
1352 if ((selector
!= NULL
) &&
1353 ((nselector
== NULL
) || (strcmp (selector
, nselector
) != 0)))
1356 sym
= find_pc_function (SYMBOL_VALUE_ADDRESS (msymbol
));
1359 const char *newsymname
= SYMBOL_NATURAL_NAME (sym
);
1361 if (strcmp (symname
, newsymname
) == 0)
1363 /* Found a high-level method sym: swap it into the
1364 lower part of sym_arr (below num_debuggable). */
1367 syms
[csym
] = syms
[cdebug
];
1376 "debugging symbol \"%s\" does not match minimal symbol (\"%s\"); ignoring",
1377 newsymname
, symname
);
1379 syms
[csym
] = (struct symbol
*) msymbol
;
1385 /* Found a non-debuggable method symbol. */
1387 syms
[csym
] = (struct symbol
*) msymbol
;
1398 char *find_imps (struct symtab
*symtab
, struct block
*block
,
1399 char *method
, struct symbol
**syms
,
1400 unsigned int *nsym
, unsigned int *ndebug
)
1404 char *category
= NULL
;
1405 char *selector
= NULL
;
1407 unsigned int csym
= 0;
1408 unsigned int cdebug
= 0;
1410 unsigned int ncsym
= 0;
1411 unsigned int ncdebug
= 0;
1416 gdb_assert (nsym
!= NULL
);
1417 gdb_assert (ndebug
!= NULL
);
1424 buf
= (char *) alloca (strlen (method
) + 1);
1425 strcpy (buf
, method
);
1426 tmp
= parse_method (buf
, &type
, &class, &category
, &selector
);
1430 struct symbol
*sym
= NULL
;
1431 struct minimal_symbol
*msym
= NULL
;
1433 strcpy (buf
, method
);
1434 tmp
= parse_selector (buf
, &selector
);
1439 sym
= lookup_symbol (selector
, block
, VAR_DOMAIN
, 0, NULL
);
1449 msym
= lookup_minimal_symbol (selector
, 0, 0);
1454 syms
[csym
] = (struct symbol
*)msym
;
1460 find_methods (symtab
, type
, class, category
, selector
,
1461 syms
+ csym
, &ncsym
, &ncdebug
);
1463 find_methods (symtab
, type
, class, category
, selector
,
1464 NULL
, &ncsym
, &ncdebug
);
1466 /* If we didn't find any methods, just return. */
1467 if (ncsym
== 0 && ncdebug
== 0)
1470 /* Take debug symbols from the second batch of symbols and swap them
1471 * with debug symbols from the first batch. Repeat until either the
1472 * second section is out of debug symbols or the first section is
1473 * full of debug symbols. Either way we have all debug symbols
1474 * packed to the beginning of the buffer.
1479 while ((cdebug
< csym
) && (ncdebug
> 0))
1481 struct symbol
*s
= NULL
;
1482 /* First non-debugging symbol. */
1483 unsigned int i
= cdebug
;
1484 /* Last of second batch of debug symbols. */
1485 unsigned int j
= csym
+ ncdebug
- 1;
1491 /* We've moved a symbol from the second debug section to the
1507 return method
+ (tmp
- buf
);
1511 /* Sort debuggable symbols. */
1513 qsort (syms
, cdebug
, sizeof (struct minimal_symbol
*),
1516 /* Sort minimal_symbols. */
1517 if ((csym
- cdebug
) > 1)
1518 qsort (&syms
[cdebug
], csym
- cdebug
,
1519 sizeof (struct minimal_symbol
*), compare_classes
);
1521 /* Terminate the sym_arr list. */
1524 return method
+ (tmp
- buf
);
1528 print_object_command (char *args
, int from_tty
)
1530 struct value
*object
, *function
, *description
;
1531 CORE_ADDR string_addr
, object_addr
;
1535 if (!args
|| !*args
)
1537 "The 'print-object' command requires an argument (an Objective-C object)");
1540 struct expression
*expr
= parse_expression (args
);
1541 struct cleanup
*old_chain
=
1542 make_cleanup (free_current_contents
, &expr
);
1545 object
= expr
->language_defn
->la_exp_desc
->evaluate_exp
1546 (builtin_type_void_data_ptr
, expr
, &pc
, EVAL_NORMAL
);
1547 do_cleanups (old_chain
);
1550 /* Validate the address for sanity. */
1551 object_addr
= value_as_long (object
);
1552 read_memory (object_addr
, &c
, 1);
1554 function
= find_function_in_inferior ("_NSPrintForDebugger");
1555 if (function
== NULL
)
1556 error (_("Unable to locate _NSPrintForDebugger in child process"));
1558 description
= call_function_by_hand (function
, 1, &object
);
1560 string_addr
= value_as_long (description
);
1561 if (string_addr
== 0)
1562 error (_("object returns null description"));
1564 read_memory (string_addr
+ i
++, &c
, 1);
1567 { /* Read and print characters up to EOS. */
1569 printf_filtered ("%c", c
);
1570 read_memory (string_addr
+ i
++, &c
, 1);
1573 printf_filtered(_("<object returns empty description>"));
1574 printf_filtered ("\n");
1577 /* The data structure 'methcalls' is used to detect method calls (thru
1578 * ObjC runtime lib functions objc_msgSend, objc_msgSendSuper, etc.),
1579 * and ultimately find the method being called.
1582 struct objc_methcall
{
1584 /* Return instance method to be called. */
1585 int (*stop_at
) (CORE_ADDR
, CORE_ADDR
*);
1586 /* Start of pc range corresponding to method invocation. */
1588 /* End of pc range corresponding to method invocation. */
1592 static int resolve_msgsend (CORE_ADDR pc
, CORE_ADDR
*new_pc
);
1593 static int resolve_msgsend_stret (CORE_ADDR pc
, CORE_ADDR
*new_pc
);
1594 static int resolve_msgsend_super (CORE_ADDR pc
, CORE_ADDR
*new_pc
);
1595 static int resolve_msgsend_super_stret (CORE_ADDR pc
, CORE_ADDR
*new_pc
);
1597 static struct objc_methcall methcalls
[] = {
1598 { "_objc_msgSend", resolve_msgsend
, 0, 0},
1599 { "_objc_msgSend_stret", resolve_msgsend_stret
, 0, 0},
1600 { "_objc_msgSendSuper", resolve_msgsend_super
, 0, 0},
1601 { "_objc_msgSendSuper_stret", resolve_msgsend_super_stret
, 0, 0},
1602 { "_objc_getClass", NULL
, 0, 0},
1603 { "_objc_getMetaClass", NULL
, 0, 0}
1606 #define nmethcalls (sizeof (methcalls) / sizeof (methcalls[0]))
1608 /* The following function, "find_objc_msgsend", fills in the data
1609 * structure "objc_msgs" by finding the addresses of each of the
1610 * (currently four) functions that it holds (of which objc_msgSend is
1611 * the first). This must be called each time symbols are loaded, in
1612 * case the functions have moved for some reason.
1616 find_objc_msgsend (void)
1619 for (i
= 0; i
< nmethcalls
; i
++) {
1621 struct minimal_symbol
*func
;
1623 /* Try both with and without underscore. */
1624 func
= lookup_minimal_symbol (methcalls
[i
].name
, NULL
, NULL
);
1625 if ((func
== NULL
) && (methcalls
[i
].name
[0] == '_')) {
1626 func
= lookup_minimal_symbol (methcalls
[i
].name
+ 1, NULL
, NULL
);
1629 methcalls
[i
].begin
= 0;
1630 methcalls
[i
].end
= 0;
1634 methcalls
[i
].begin
= SYMBOL_VALUE_ADDRESS (func
);
1636 methcalls
[i
].end
= SYMBOL_VALUE_ADDRESS (++func
);
1637 } while (methcalls
[i
].begin
== methcalls
[i
].end
);
1641 /* find_objc_msgcall (replaces pc_off_limits)
1643 * ALL that this function now does is to determine whether the input
1644 * address ("pc") is the address of one of the Objective-C message
1645 * dispatch functions (mainly objc_msgSend or objc_msgSendSuper), and
1646 * if so, it returns the address of the method that will be called.
1648 * The old function "pc_off_limits" used to do a lot of other things
1649 * in addition, such as detecting shared library jump stubs and
1650 * returning the address of the shlib function that would be called.
1651 * That functionality has been moved into the gdbarch_skip_trampoline_code and
1652 * IN_SOLIB_TRAMPOLINE macros, which are resolved in the target-
1653 * dependent modules.
1656 struct objc_submethod_helper_data
{
1657 int (*f
) (CORE_ADDR
, CORE_ADDR
*);
1663 find_objc_msgcall_submethod_helper (void * arg
)
1665 struct objc_submethod_helper_data
*s
=
1666 (struct objc_submethod_helper_data
*) arg
;
1668 if (s
->f (s
->pc
, s
->new_pc
) == 0)
1675 find_objc_msgcall_submethod (int (*f
) (CORE_ADDR
, CORE_ADDR
*),
1679 struct objc_submethod_helper_data s
;
1685 if (catch_errors (find_objc_msgcall_submethod_helper
,
1687 "Unable to determine target of Objective-C method call (ignoring):\n",
1688 RETURN_MASK_ALL
) == 0)
1695 find_objc_msgcall (CORE_ADDR pc
, CORE_ADDR
*new_pc
)
1699 find_objc_msgsend ();
1705 for (i
= 0; i
< nmethcalls
; i
++)
1706 if ((pc
>= methcalls
[i
].begin
) && (pc
< methcalls
[i
].end
))
1708 if (methcalls
[i
].stop_at
!= NULL
)
1709 return find_objc_msgcall_submethod (methcalls
[i
].stop_at
,
1718 extern initialize_file_ftype _initialize_objc_language
; /* -Wmissing-prototypes */
1721 _initialize_objc_language (void)
1723 add_language (&objc_language_defn
);
1724 add_info ("selectors", selectors_info
, /* INFO SELECTORS command. */
1725 _("All Objective-C selectors, or those matching REGEXP."));
1726 add_info ("classes", classes_info
, /* INFO CLASSES command. */
1727 _("All Objective-C classes, or those matching REGEXP."));
1728 add_com ("print-object", class_vars
, print_object_command
,
1729 _("Ask an Objective-C object to print itself."));
1730 add_com_alias ("po", "print-object", class_vars
, 1);
1734 read_objc_method (CORE_ADDR addr
, struct objc_method
*method
)
1736 method
->name
= read_memory_unsigned_integer (addr
+ 0, 4);
1737 method
->types
= read_memory_unsigned_integer (addr
+ 4, 4);
1738 method
->imp
= read_memory_unsigned_integer (addr
+ 8, 4);
1742 unsigned long read_objc_methlist_nmethods (CORE_ADDR addr
)
1744 return read_memory_unsigned_integer (addr
+ 4, 4);
1748 read_objc_methlist_method (CORE_ADDR addr
, unsigned long num
,
1749 struct objc_method
*method
)
1751 gdb_assert (num
< read_objc_methlist_nmethods (addr
));
1752 read_objc_method (addr
+ 8 + (12 * num
), method
);
1756 read_objc_object (CORE_ADDR addr
, struct objc_object
*object
)
1758 object
->isa
= read_memory_unsigned_integer (addr
, 4);
1762 read_objc_super (CORE_ADDR addr
, struct objc_super
*super
)
1764 super
->receiver
= read_memory_unsigned_integer (addr
, 4);
1765 super
->class = read_memory_unsigned_integer (addr
+ 4, 4);
1769 read_objc_class (CORE_ADDR addr
, struct objc_class
*class)
1771 class->isa
= read_memory_unsigned_integer (addr
, 4);
1772 class->super_class
= read_memory_unsigned_integer (addr
+ 4, 4);
1773 class->name
= read_memory_unsigned_integer (addr
+ 8, 4);
1774 class->version
= read_memory_unsigned_integer (addr
+ 12, 4);
1775 class->info
= read_memory_unsigned_integer (addr
+ 16, 4);
1776 class->instance_size
= read_memory_unsigned_integer (addr
+ 18, 4);
1777 class->ivars
= read_memory_unsigned_integer (addr
+ 24, 4);
1778 class->methods
= read_memory_unsigned_integer (addr
+ 28, 4);
1779 class->cache
= read_memory_unsigned_integer (addr
+ 32, 4);
1780 class->protocols
= read_memory_unsigned_integer (addr
+ 36, 4);
1784 find_implementation_from_class (CORE_ADDR
class, CORE_ADDR sel
)
1786 CORE_ADDR subclass
= class;
1788 while (subclass
!= 0)
1791 struct objc_class class_str
;
1792 unsigned mlistnum
= 0;
1794 read_objc_class (subclass
, &class_str
);
1799 unsigned long nmethods
;
1802 mlist
= read_memory_unsigned_integer (class_str
.methods
+
1807 nmethods
= read_objc_methlist_nmethods (mlist
);
1809 for (i
= 0; i
< nmethods
; i
++)
1811 struct objc_method meth_str
;
1812 read_objc_methlist_method (mlist
, i
, &meth_str
);
1816 "checking method 0x%lx against selector 0x%lx\n",
1817 meth_str
.name
, sel
);
1820 if (meth_str
.name
== sel
)
1821 /* FIXME: hppa arch was doing a pointer dereference
1822 here. There needs to be a better way to do that. */
1823 return meth_str
.imp
;
1827 subclass
= class_str
.super_class
;
1834 find_implementation (CORE_ADDR object
, CORE_ADDR sel
)
1836 struct objc_object ostr
;
1840 read_objc_object (object
, &ostr
);
1844 return find_implementation_from_class (ostr
.isa
, sel
);
1847 #define OBJC_FETCH_POINTER_ARGUMENT(argi) \
1848 gdbarch_fetch_pointer_argument (current_gdbarch, get_current_frame (), \
1849 argi, builtin_type_void_func_ptr)
1852 resolve_msgsend (CORE_ADDR pc
, CORE_ADDR
*new_pc
)
1858 object
= OBJC_FETCH_POINTER_ARGUMENT (0);
1859 sel
= OBJC_FETCH_POINTER_ARGUMENT (1);
1861 res
= find_implementation (object
, sel
);
1870 resolve_msgsend_stret (CORE_ADDR pc
, CORE_ADDR
*new_pc
)
1876 object
= OBJC_FETCH_POINTER_ARGUMENT (1);
1877 sel
= OBJC_FETCH_POINTER_ARGUMENT (2);
1879 res
= find_implementation (object
, sel
);
1888 resolve_msgsend_super (CORE_ADDR pc
, CORE_ADDR
*new_pc
)
1890 struct objc_super sstr
;
1896 super
= OBJC_FETCH_POINTER_ARGUMENT (0);
1897 sel
= OBJC_FETCH_POINTER_ARGUMENT (1);
1899 read_objc_super (super
, &sstr
);
1900 if (sstr
.class == 0)
1903 res
= find_implementation_from_class (sstr
.class, sel
);
1912 resolve_msgsend_super_stret (CORE_ADDR pc
, CORE_ADDR
*new_pc
)
1914 struct objc_super sstr
;
1920 super
= OBJC_FETCH_POINTER_ARGUMENT (1);
1921 sel
= OBJC_FETCH_POINTER_ARGUMENT (2);
1923 read_objc_super (super
, &sstr
);
1924 if (sstr
.class == 0)
1927 res
= find_implementation_from_class (sstr
.class, sel
);