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 gdbarch_int_bit (current_gdbarch
) / 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 gdbarch_short_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
491 0, "short", objfile
);
493 case FT_SIGNED_SHORT
:
494 type
= init_type (TYPE_CODE_INT
,
495 gdbarch_short_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
496 0, "short", objfile
); /* FIXME-fnf */
498 case FT_UNSIGNED_SHORT
:
499 type
= init_type (TYPE_CODE_INT
,
500 gdbarch_short_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
501 TYPE_FLAG_UNSIGNED
, "unsigned short", objfile
);
504 type
= init_type (TYPE_CODE_INT
,
505 gdbarch_int_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
508 case FT_SIGNED_INTEGER
:
509 type
= init_type (TYPE_CODE_INT
,
510 gdbarch_int_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
511 0, "int", objfile
); /* FIXME -fnf */
513 case FT_UNSIGNED_INTEGER
:
514 type
= init_type (TYPE_CODE_INT
,
515 gdbarch_int_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
516 TYPE_FLAG_UNSIGNED
, "unsigned int", objfile
);
519 type
= init_type (TYPE_CODE_INT
,
520 gdbarch_long_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
524 type
= init_type (TYPE_CODE_INT
,
525 gdbarch_long_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
526 0, "long", objfile
); /* FIXME -fnf */
528 case FT_UNSIGNED_LONG
:
529 type
= init_type (TYPE_CODE_INT
,
530 gdbarch_long_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
531 TYPE_FLAG_UNSIGNED
, "unsigned long", objfile
);
534 type
= init_type (TYPE_CODE_INT
,
535 gdbarch_long_long_bit (current_gdbarch
)
537 0, "long long", objfile
);
539 case FT_SIGNED_LONG_LONG
:
540 type
= init_type (TYPE_CODE_INT
,
541 gdbarch_long_long_bit (current_gdbarch
)
543 0, "signed long long", objfile
);
545 case FT_UNSIGNED_LONG_LONG
:
546 type
= init_type (TYPE_CODE_INT
,
547 gdbarch_long_long_bit (current_gdbarch
)
549 TYPE_FLAG_UNSIGNED
, "unsigned long long", objfile
);
552 type
= init_type (TYPE_CODE_FLT
,
553 gdbarch_float_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
554 0, "float", objfile
);
556 case FT_DBL_PREC_FLOAT
:
557 type
= init_type (TYPE_CODE_FLT
,
558 gdbarch_double_bit (current_gdbarch
)
560 0, "double", objfile
);
562 case FT_EXT_PREC_FLOAT
:
563 type
= init_type (TYPE_CODE_FLT
,
564 gdbarch_long_double_bit (current_gdbarch
)
566 0, "long double", objfile
);
572 /* Determine if we are currently in the Objective-C dispatch function.
573 If so, get the address of the method function that the dispatcher
574 would call and use that as the function to step into instead. Also
575 skip over the trampoline for the function (if any). This is better
576 for the user since they are only interested in stepping into the
577 method function anyway. */
579 objc_skip_trampoline (struct frame_info
*frame
, CORE_ADDR stop_pc
)
581 CORE_ADDR real_stop_pc
;
582 CORE_ADDR method_stop_pc
;
584 real_stop_pc
= gdbarch_skip_trampoline_code
585 (current_gdbarch
, frame
, stop_pc
);
587 if (real_stop_pc
!= 0)
588 find_objc_msgcall (real_stop_pc
, &method_stop_pc
);
590 find_objc_msgcall (stop_pc
, &method_stop_pc
);
594 real_stop_pc
= gdbarch_skip_trampoline_code
595 (current_gdbarch
, frame
, method_stop_pc
);
596 if (real_stop_pc
== 0)
597 real_stop_pc
= method_stop_pc
;
604 /* Table mapping opcodes into strings for printing operators
605 and precedences of the operators. */
607 static const struct op_print objc_op_print_tab
[] =
609 {",", BINOP_COMMA
, PREC_COMMA
, 0},
610 {"=", BINOP_ASSIGN
, PREC_ASSIGN
, 1},
611 {"||", BINOP_LOGICAL_OR
, PREC_LOGICAL_OR
, 0},
612 {"&&", BINOP_LOGICAL_AND
, PREC_LOGICAL_AND
, 0},
613 {"|", BINOP_BITWISE_IOR
, PREC_BITWISE_IOR
, 0},
614 {"^", BINOP_BITWISE_XOR
, PREC_BITWISE_XOR
, 0},
615 {"&", BINOP_BITWISE_AND
, PREC_BITWISE_AND
, 0},
616 {"==", BINOP_EQUAL
, PREC_EQUAL
, 0},
617 {"!=", BINOP_NOTEQUAL
, PREC_EQUAL
, 0},
618 {"<=", BINOP_LEQ
, PREC_ORDER
, 0},
619 {">=", BINOP_GEQ
, PREC_ORDER
, 0},
620 {">", BINOP_GTR
, PREC_ORDER
, 0},
621 {"<", BINOP_LESS
, PREC_ORDER
, 0},
622 {">>", BINOP_RSH
, PREC_SHIFT
, 0},
623 {"<<", BINOP_LSH
, PREC_SHIFT
, 0},
624 {"+", BINOP_ADD
, PREC_ADD
, 0},
625 {"-", BINOP_SUB
, PREC_ADD
, 0},
626 {"*", BINOP_MUL
, PREC_MUL
, 0},
627 {"/", BINOP_DIV
, PREC_MUL
, 0},
628 {"%", BINOP_REM
, PREC_MUL
, 0},
629 {"@", BINOP_REPEAT
, PREC_REPEAT
, 0},
630 {"-", UNOP_NEG
, PREC_PREFIX
, 0},
631 {"!", UNOP_LOGICAL_NOT
, PREC_PREFIX
, 0},
632 {"~", UNOP_COMPLEMENT
, PREC_PREFIX
, 0},
633 {"*", UNOP_IND
, PREC_PREFIX
, 0},
634 {"&", UNOP_ADDR
, PREC_PREFIX
, 0},
635 {"sizeof ", UNOP_SIZEOF
, PREC_PREFIX
, 0},
636 {"++", UNOP_PREINCREMENT
, PREC_PREFIX
, 0},
637 {"--", UNOP_PREDECREMENT
, PREC_PREFIX
, 0},
638 {NULL
, OP_NULL
, PREC_NULL
, 0}
641 const struct language_defn objc_language_defn
= {
642 "objective-c", /* Language name */
649 &exp_descriptor_standard
,
653 objc_printchar
, /* Print a character constant */
654 objc_printstr
, /* Function to print string constant */
656 objc_create_fundamental_type
, /* Create fundamental type in this language */
657 c_print_type
, /* Print a type using appropriate syntax */
658 c_val_print
, /* Print a value using appropriate syntax */
659 c_value_print
, /* Print a top-level value */
660 objc_skip_trampoline
, /* Language specific skip_trampoline */
661 value_of_this
, /* value_of_this */
662 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
663 basic_lookup_transparent_type
,/* lookup_transparent_type */
664 objc_demangle
, /* Language specific symbol demangler */
665 NULL
, /* Language specific class_name_from_physname */
666 objc_op_print_tab
, /* Expression operators for printing */
667 1, /* C-style arrays */
668 0, /* String lower bound */
670 default_word_break_characters
,
671 c_language_arch_info
,
672 default_print_array_index
,
678 * Following functions help construct Objective-C message calls
681 struct selname
/* For parsing Objective-C. */
683 struct selname
*next
;
688 static int msglist_len
;
689 static struct selname
*selname_chain
;
690 static char *msglist_sel
;
695 struct selname
*new =
696 (struct selname
*) xmalloc (sizeof (struct selname
));
698 new->next
= selname_chain
;
699 new->msglist_len
= msglist_len
;
700 new->msglist_sel
= msglist_sel
;
702 msglist_sel
= (char *)xmalloc(1);
708 add_msglist(struct stoken
*str
, int addcolon
)
713 if (str
== 0) { /* Unnamed arg, or... */
714 if (addcolon
== 0) { /* variable number of args. */
724 len
= plen
+ strlen(msglist_sel
) + 2;
725 s
= (char *)xmalloc(len
);
726 strcpy(s
, msglist_sel
);
741 int val
= msglist_len
;
742 struct selname
*sel
= selname_chain
;
743 char *p
= msglist_sel
;
746 selname_chain
= sel
->next
;
747 msglist_len
= sel
->msglist_len
;
748 msglist_sel
= sel
->msglist_sel
;
749 selid
= lookup_child_selector(p
);
751 error (_("Can't find selector \"%s\""), p
);
752 write_exp_elt_longcst (selid
);
754 write_exp_elt_longcst (val
); /* Number of args */
761 * Function: specialcmp (char *a, char *b)
763 * Special strcmp: treats ']' and ' ' as end-of-string.
764 * Used for qsorting lists of objc methods (either by class or selector).
768 specialcmp (char *a
, char *b
)
770 while (*a
&& *a
!= ' ' && *a
!= ']' && *b
&& *b
!= ' ' && *b
!= ']')
776 if (*a
&& *a
!= ' ' && *a
!= ']')
777 return 1; /* a is longer therefore greater */
778 if (*b
&& *b
!= ' ' && *b
!= ']')
779 return -1; /* a is shorter therefore lesser */
780 return 0; /* a and b are identical */
784 * Function: compare_selectors (const void *, const void *)
786 * Comparison function for use with qsort. Arguments are symbols or
787 * msymbols Compares selector part of objc method name alphabetically.
791 compare_selectors (const void *a
, const void *b
)
795 aname
= SYMBOL_PRINT_NAME (*(struct symbol
**) a
);
796 bname
= SYMBOL_PRINT_NAME (*(struct symbol
**) b
);
797 if (aname
== NULL
|| bname
== NULL
)
798 error (_("internal: compare_selectors(1)"));
800 aname
= strchr(aname
, ' ');
801 bname
= strchr(bname
, ' ');
802 if (aname
== NULL
|| bname
== NULL
)
803 error (_("internal: compare_selectors(2)"));
805 return specialcmp (aname
+1, bname
+1);
809 * Function: selectors_info (regexp, from_tty)
811 * Implements the "Info selectors" command. Takes an optional regexp
812 * arg. Lists all objective c selectors that match the regexp. Works
813 * by grepping thru all symbols for objective c methods. Output list
814 * is sorted and uniqued.
818 selectors_info (char *regexp
, int from_tty
)
820 struct objfile
*objfile
;
821 struct minimal_symbol
*msymbol
;
829 struct symbol
**sym_arr
;
833 strcpy(myregexp
, ".*]"); /* Null input, match all objc methods. */
836 if (*regexp
== '+' || *regexp
== '-')
837 { /* User wants only class methods or only instance methods. */
838 plusminus
= *regexp
++;
839 while (*regexp
== ' ' || *regexp
== '\t')
843 strcpy(myregexp
, ".*]");
846 strcpy(myregexp
, regexp
);
847 if (myregexp
[strlen(myregexp
) - 1] == '$') /* end of selector */
848 myregexp
[strlen(myregexp
) - 1] = ']'; /* end of method name */
850 strcat(myregexp
, ".*]");
856 val
= re_comp (myregexp
);
858 error (_("Invalid regexp (%s): %s"), val
, regexp
);
861 /* First time thru is JUST to get max length and count. */
862 ALL_MSYMBOLS (objfile
, msymbol
)
865 name
= SYMBOL_NATURAL_NAME (msymbol
);
867 (name
[0] == '-' || name
[0] == '+') &&
868 name
[1] == '[') /* Got a method name. */
870 /* Filter for class/instance methods. */
871 if (plusminus
&& name
[0] != plusminus
)
873 /* Find selector part. */
874 name
= (char *) strchr(name
+2, ' ');
875 if (regexp
== NULL
|| re_exec(++name
) != 0)
877 char *mystart
= name
;
878 char *myend
= (char *) strchr(mystart
, ']');
880 if (myend
&& (myend
- mystart
> maxlen
))
881 maxlen
= myend
- mystart
; /* Get longest selector. */
888 printf_filtered (_("Selectors matching \"%s\":\n\n"),
889 regexp
? regexp
: "*");
891 sym_arr
= alloca (matches
* sizeof (struct symbol
*));
893 ALL_MSYMBOLS (objfile
, msymbol
)
896 name
= SYMBOL_NATURAL_NAME (msymbol
);
898 (name
[0] == '-' || name
[0] == '+') &&
899 name
[1] == '[') /* Got a method name. */
901 /* Filter for class/instance methods. */
902 if (plusminus
&& name
[0] != plusminus
)
904 /* Find selector part. */
905 name
= (char *) strchr(name
+2, ' ');
906 if (regexp
== NULL
|| re_exec(++name
) != 0)
907 sym_arr
[matches
++] = (struct symbol
*) msymbol
;
911 qsort (sym_arr
, matches
, sizeof (struct minimal_symbol
*),
913 /* Prevent compare on first iteration. */
915 for (ix
= 0; ix
< matches
; ix
++) /* Now do the output. */
920 name
= SYMBOL_NATURAL_NAME (sym_arr
[ix
]);
921 name
= strchr (name
, ' ') + 1;
922 if (p
[0] && specialcmp(name
, p
) == 0)
923 continue; /* Seen this one already (not unique). */
925 /* Copy selector part. */
926 while (*name
&& *name
!= ']')
929 /* Print in columns. */
930 puts_filtered_tabular(asel
, maxlen
+ 1, 0);
935 printf_filtered (_("No selectors matching \"%s\"\n"), regexp
? regexp
: "*");
939 * Function: compare_classes (const void *, const void *)
941 * Comparison function for use with qsort. Arguments are symbols or
942 * msymbols Compares class part of objc method name alphabetically.
946 compare_classes (const void *a
, const void *b
)
950 aname
= SYMBOL_PRINT_NAME (*(struct symbol
**) a
);
951 bname
= SYMBOL_PRINT_NAME (*(struct symbol
**) b
);
952 if (aname
== NULL
|| bname
== NULL
)
953 error (_("internal: compare_classes(1)"));
955 return specialcmp (aname
+1, bname
+1);
959 * Function: classes_info(regexp, from_tty)
961 * Implements the "info classes" command for objective c classes.
962 * Lists all objective c classes that match the optional regexp.
963 * Works by grepping thru the list of objective c methods. List will
964 * be sorted and uniqued (since one class may have many methods).
965 * BUGS: will not list a class that has no methods.
969 classes_info (char *regexp
, int from_tty
)
971 struct objfile
*objfile
;
972 struct minimal_symbol
*msymbol
;
980 struct symbol
**sym_arr
;
983 strcpy(myregexp
, ".* "); /* Null input: match all objc classes. */
986 strcpy(myregexp
, regexp
);
987 if (myregexp
[strlen(myregexp
) - 1] == '$')
988 /* In the method name, the end of the class name is marked by ' '. */
989 myregexp
[strlen(myregexp
) - 1] = ' ';
991 strcat(myregexp
, ".* ");
996 val
= re_comp (myregexp
);
998 error (_("Invalid regexp (%s): %s"), val
, regexp
);
1001 /* First time thru is JUST to get max length and count. */
1002 ALL_MSYMBOLS (objfile
, msymbol
)
1005 name
= SYMBOL_NATURAL_NAME (msymbol
);
1007 (name
[0] == '-' || name
[0] == '+') &&
1008 name
[1] == '[') /* Got a method name. */
1009 if (regexp
== NULL
|| re_exec(name
+2) != 0)
1011 /* Compute length of classname part. */
1012 char *mystart
= name
+ 2;
1013 char *myend
= (char *) strchr(mystart
, ' ');
1015 if (myend
&& (myend
- mystart
> maxlen
))
1016 maxlen
= myend
- mystart
;
1022 printf_filtered (_("Classes matching \"%s\":\n\n"),
1023 regexp
? regexp
: "*");
1024 sym_arr
= alloca (matches
* sizeof (struct symbol
*));
1026 ALL_MSYMBOLS (objfile
, msymbol
)
1029 name
= SYMBOL_NATURAL_NAME (msymbol
);
1031 (name
[0] == '-' || name
[0] == '+') &&
1032 name
[1] == '[') /* Got a method name. */
1033 if (regexp
== NULL
|| re_exec(name
+2) != 0)
1034 sym_arr
[matches
++] = (struct symbol
*) msymbol
;
1037 qsort (sym_arr
, matches
, sizeof (struct minimal_symbol
*),
1039 /* Prevent compare on first iteration. */
1041 for (ix
= 0; ix
< matches
; ix
++) /* Now do the output. */
1046 name
= SYMBOL_NATURAL_NAME (sym_arr
[ix
]);
1048 if (p
[0] && specialcmp(name
, p
) == 0)
1049 continue; /* Seen this one already (not unique). */
1051 /* Copy class part of method name. */
1052 while (*name
&& *name
!= ' ')
1055 /* Print in columns. */
1056 puts_filtered_tabular(aclass
, maxlen
+ 1, 0);
1061 printf_filtered (_("No classes matching \"%s\"\n"), regexp
? regexp
: "*");
1065 * Function: find_imps (char *selector, struct symbol **sym_arr)
1067 * Input: a string representing a selector
1068 * a pointer to an array of symbol pointers
1069 * possibly a pointer to a symbol found by the caller.
1071 * Output: number of methods that implement that selector. Side
1072 * effects: The array of symbol pointers is filled with matching syms.
1074 * By analogy with function "find_methods" (symtab.c), builds a list
1075 * of symbols matching the ambiguous input, so that "decode_line_2"
1076 * (symtab.c) can list them and ask the user to choose one or more.
1077 * In this case the matches are objective c methods
1078 * ("implementations") matching an objective c selector.
1080 * Note that it is possible for a normal (c-style) function to have
1081 * the same name as an objective c selector. To prevent the selector
1082 * from eclipsing the function, we allow the caller (decode_line_1) to
1083 * search for such a function first, and if it finds one, pass it in
1084 * to us. We will then integrate it into the list. We also search
1085 * for one here, among the minsyms.
1087 * NOTE: if NUM_DEBUGGABLE is non-zero, the sym_arr will be divided
1088 * into two parts: debuggable (struct symbol) syms, and
1089 * non_debuggable (struct minimal_symbol) syms. The debuggable
1090 * ones will come first, before NUM_DEBUGGABLE (which will thus
1091 * be the index of the first non-debuggable one).
1095 * Function: total_number_of_imps (char *selector);
1097 * Input: a string representing a selector
1098 * Output: number of methods that implement that selector.
1100 * By analogy with function "total_number_of_methods", this allows
1101 * decode_line_1 (symtab.c) to detect if there are objective c methods
1102 * matching the input, and to allocate an array of pointers to them
1103 * which can be manipulated by "decode_line_2" (also in symtab.c).
1107 parse_selector (char *method
, char **selector
)
1111 int found_quote
= 0;
1113 char *nselector
= NULL
;
1115 gdb_assert (selector
!= NULL
);
1119 while (isspace (*s1
))
1126 while (isspace (*s1
))
1133 if (isalnum (*s2
) || (*s2
== '_') || (*s2
== ':'))
1135 else if (isspace (*s2
))
1137 else if ((*s2
== '\0') || (*s2
== '\''))
1145 while (isspace (*s2
))
1151 while (isspace (*s2
))
1155 if (selector
!= NULL
)
1156 *selector
= nselector
;
1162 parse_method (char *method
, char *type
, char **class,
1163 char **category
, char **selector
)
1167 int found_quote
= 0;
1170 char *nclass
= NULL
;
1171 char *ncategory
= NULL
;
1172 char *nselector
= NULL
;
1174 gdb_assert (type
!= NULL
);
1175 gdb_assert (class != NULL
);
1176 gdb_assert (category
!= NULL
);
1177 gdb_assert (selector
!= NULL
);
1181 while (isspace (*s1
))
1188 while (isspace (*s1
))
1191 if ((s1
[0] == '+') || (s1
[0] == '-'))
1194 while (isspace (*s1
))
1202 while (isalnum (*s1
) || (*s1
== '_'))
1206 while (isspace (*s2
))
1212 while (isspace (*s2
))
1215 while (isalnum (*s2
) || (*s2
== '_'))
1220 /* Truncate the class name now that we're not using the open paren. */
1227 if (isalnum (*s2
) || (*s2
== '_') || (*s2
== ':'))
1229 else if (isspace (*s2
))
1231 else if (*s2
== ']')
1240 while (isspace (*s2
))
1247 while (isspace (*s2
))
1255 if (category
!= NULL
)
1256 *category
= ncategory
;
1257 if (selector
!= NULL
)
1258 *selector
= nselector
;
1264 find_methods (struct symtab
*symtab
, char type
,
1265 const char *class, const char *category
,
1266 const char *selector
, struct symbol
**syms
,
1267 unsigned int *nsym
, unsigned int *ndebug
)
1269 struct objfile
*objfile
= NULL
;
1270 struct minimal_symbol
*msymbol
= NULL
;
1271 struct block
*block
= NULL
;
1272 struct symbol
*sym
= NULL
;
1274 char *symname
= NULL
;
1277 char *nclass
= NULL
;
1278 char *ncategory
= NULL
;
1279 char *nselector
= NULL
;
1281 unsigned int csym
= 0;
1282 unsigned int cdebug
= 0;
1284 static char *tmp
= NULL
;
1285 static unsigned int tmplen
= 0;
1287 gdb_assert (nsym
!= NULL
);
1288 gdb_assert (ndebug
!= NULL
);
1291 block
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab
), STATIC_BLOCK
);
1293 ALL_MSYMBOLS (objfile
, msymbol
)
1297 if ((msymbol
->type
!= mst_text
) && (msymbol
->type
!= mst_file_text
))
1298 /* Not a function or method. */
1302 if ((SYMBOL_VALUE_ADDRESS (msymbol
) < BLOCK_START (block
)) ||
1303 (SYMBOL_VALUE_ADDRESS (msymbol
) >= BLOCK_END (block
)))
1304 /* Not in the specified symtab. */
1307 symname
= SYMBOL_NATURAL_NAME (msymbol
);
1308 if (symname
== NULL
)
1311 if ((symname
[0] != '-' && symname
[0] != '+') || (symname
[1] != '['))
1312 /* Not a method name. */
1315 while ((strlen (symname
) + 1) >= tmplen
)
1317 tmplen
= (tmplen
== 0) ? 1024 : tmplen
* 2;
1318 tmp
= xrealloc (tmp
, tmplen
);
1320 strcpy (tmp
, symname
);
1322 if (parse_method (tmp
, &ntype
, &nclass
, &ncategory
, &nselector
) == NULL
)
1325 if ((type
!= '\0') && (ntype
!= type
))
1329 && ((nclass
== NULL
) || (strcmp (class, nclass
) != 0)))
1332 if ((category
!= NULL
) &&
1333 ((ncategory
== NULL
) || (strcmp (category
, ncategory
) != 0)))
1336 if ((selector
!= NULL
) &&
1337 ((nselector
== NULL
) || (strcmp (selector
, nselector
) != 0)))
1340 sym
= find_pc_function (SYMBOL_VALUE_ADDRESS (msymbol
));
1343 const char *newsymname
= SYMBOL_NATURAL_NAME (sym
);
1345 if (strcmp (symname
, newsymname
) == 0)
1347 /* Found a high-level method sym: swap it into the
1348 lower part of sym_arr (below num_debuggable). */
1351 syms
[csym
] = syms
[cdebug
];
1360 "debugging symbol \"%s\" does not match minimal symbol (\"%s\"); ignoring",
1361 newsymname
, symname
);
1363 syms
[csym
] = (struct symbol
*) msymbol
;
1369 /* Found a non-debuggable method symbol. */
1371 syms
[csym
] = (struct symbol
*) msymbol
;
1382 char *find_imps (struct symtab
*symtab
, struct block
*block
,
1383 char *method
, struct symbol
**syms
,
1384 unsigned int *nsym
, unsigned int *ndebug
)
1388 char *category
= NULL
;
1389 char *selector
= NULL
;
1391 unsigned int csym
= 0;
1392 unsigned int cdebug
= 0;
1394 unsigned int ncsym
= 0;
1395 unsigned int ncdebug
= 0;
1400 gdb_assert (nsym
!= NULL
);
1401 gdb_assert (ndebug
!= NULL
);
1408 buf
= (char *) alloca (strlen (method
) + 1);
1409 strcpy (buf
, method
);
1410 tmp
= parse_method (buf
, &type
, &class, &category
, &selector
);
1414 struct symbol
*sym
= NULL
;
1415 struct minimal_symbol
*msym
= NULL
;
1417 strcpy (buf
, method
);
1418 tmp
= parse_selector (buf
, &selector
);
1423 sym
= lookup_symbol (selector
, block
, VAR_DOMAIN
, 0, NULL
);
1433 msym
= lookup_minimal_symbol (selector
, 0, 0);
1438 syms
[csym
] = (struct symbol
*)msym
;
1444 find_methods (symtab
, type
, class, category
, selector
,
1445 syms
+ csym
, &ncsym
, &ncdebug
);
1447 find_methods (symtab
, type
, class, category
, selector
,
1448 NULL
, &ncsym
, &ncdebug
);
1450 /* If we didn't find any methods, just return. */
1451 if (ncsym
== 0 && ncdebug
== 0)
1454 /* Take debug symbols from the second batch of symbols and swap them
1455 * with debug symbols from the first batch. Repeat until either the
1456 * second section is out of debug symbols or the first section is
1457 * full of debug symbols. Either way we have all debug symbols
1458 * packed to the beginning of the buffer.
1463 while ((cdebug
< csym
) && (ncdebug
> 0))
1465 struct symbol
*s
= NULL
;
1466 /* First non-debugging symbol. */
1467 unsigned int i
= cdebug
;
1468 /* Last of second batch of debug symbols. */
1469 unsigned int j
= csym
+ ncdebug
- 1;
1475 /* We've moved a symbol from the second debug section to the
1491 return method
+ (tmp
- buf
);
1495 /* Sort debuggable symbols. */
1497 qsort (syms
, cdebug
, sizeof (struct minimal_symbol
*),
1500 /* Sort minimal_symbols. */
1501 if ((csym
- cdebug
) > 1)
1502 qsort (&syms
[cdebug
], csym
- cdebug
,
1503 sizeof (struct minimal_symbol
*), compare_classes
);
1505 /* Terminate the sym_arr list. */
1508 return method
+ (tmp
- buf
);
1512 print_object_command (char *args
, int from_tty
)
1514 struct value
*object
, *function
, *description
;
1515 CORE_ADDR string_addr
, object_addr
;
1519 if (!args
|| !*args
)
1521 "The 'print-object' command requires an argument (an Objective-C object)");
1524 struct expression
*expr
= parse_expression (args
);
1525 struct cleanup
*old_chain
=
1526 make_cleanup (free_current_contents
, &expr
);
1529 object
= expr
->language_defn
->la_exp_desc
->evaluate_exp
1530 (builtin_type_void_data_ptr
, expr
, &pc
, EVAL_NORMAL
);
1531 do_cleanups (old_chain
);
1534 /* Validate the address for sanity. */
1535 object_addr
= value_as_long (object
);
1536 read_memory (object_addr
, &c
, 1);
1538 function
= find_function_in_inferior ("_NSPrintForDebugger");
1539 if (function
== NULL
)
1540 error (_("Unable to locate _NSPrintForDebugger in child process"));
1542 description
= call_function_by_hand (function
, 1, &object
);
1544 string_addr
= value_as_long (description
);
1545 if (string_addr
== 0)
1546 error (_("object returns null description"));
1548 read_memory (string_addr
+ i
++, &c
, 1);
1551 { /* Read and print characters up to EOS. */
1553 printf_filtered ("%c", c
);
1554 read_memory (string_addr
+ i
++, &c
, 1);
1557 printf_filtered(_("<object returns empty description>"));
1558 printf_filtered ("\n");
1561 /* The data structure 'methcalls' is used to detect method calls (thru
1562 * ObjC runtime lib functions objc_msgSend, objc_msgSendSuper, etc.),
1563 * and ultimately find the method being called.
1566 struct objc_methcall
{
1568 /* Return instance method to be called. */
1569 int (*stop_at
) (CORE_ADDR
, CORE_ADDR
*);
1570 /* Start of pc range corresponding to method invocation. */
1572 /* End of pc range corresponding to method invocation. */
1576 static int resolve_msgsend (CORE_ADDR pc
, CORE_ADDR
*new_pc
);
1577 static int resolve_msgsend_stret (CORE_ADDR pc
, CORE_ADDR
*new_pc
);
1578 static int resolve_msgsend_super (CORE_ADDR pc
, CORE_ADDR
*new_pc
);
1579 static int resolve_msgsend_super_stret (CORE_ADDR pc
, CORE_ADDR
*new_pc
);
1581 static struct objc_methcall methcalls
[] = {
1582 { "_objc_msgSend", resolve_msgsend
, 0, 0},
1583 { "_objc_msgSend_stret", resolve_msgsend_stret
, 0, 0},
1584 { "_objc_msgSendSuper", resolve_msgsend_super
, 0, 0},
1585 { "_objc_msgSendSuper_stret", resolve_msgsend_super_stret
, 0, 0},
1586 { "_objc_getClass", NULL
, 0, 0},
1587 { "_objc_getMetaClass", NULL
, 0, 0}
1590 #define nmethcalls (sizeof (methcalls) / sizeof (methcalls[0]))
1592 /* The following function, "find_objc_msgsend", fills in the data
1593 * structure "objc_msgs" by finding the addresses of each of the
1594 * (currently four) functions that it holds (of which objc_msgSend is
1595 * the first). This must be called each time symbols are loaded, in
1596 * case the functions have moved for some reason.
1600 find_objc_msgsend (void)
1603 for (i
= 0; i
< nmethcalls
; i
++) {
1605 struct minimal_symbol
*func
;
1607 /* Try both with and without underscore. */
1608 func
= lookup_minimal_symbol (methcalls
[i
].name
, NULL
, NULL
);
1609 if ((func
== NULL
) && (methcalls
[i
].name
[0] == '_')) {
1610 func
= lookup_minimal_symbol (methcalls
[i
].name
+ 1, NULL
, NULL
);
1613 methcalls
[i
].begin
= 0;
1614 methcalls
[i
].end
= 0;
1618 methcalls
[i
].begin
= SYMBOL_VALUE_ADDRESS (func
);
1620 methcalls
[i
].end
= SYMBOL_VALUE_ADDRESS (++func
);
1621 } while (methcalls
[i
].begin
== methcalls
[i
].end
);
1625 /* find_objc_msgcall (replaces pc_off_limits)
1627 * ALL that this function now does is to determine whether the input
1628 * address ("pc") is the address of one of the Objective-C message
1629 * dispatch functions (mainly objc_msgSend or objc_msgSendSuper), and
1630 * if so, it returns the address of the method that will be called.
1632 * The old function "pc_off_limits" used to do a lot of other things
1633 * in addition, such as detecting shared library jump stubs and
1634 * returning the address of the shlib function that would be called.
1635 * That functionality has been moved into the gdbarch_skip_trampoline_code and
1636 * IN_SOLIB_TRAMPOLINE macros, which are resolved in the target-
1637 * dependent modules.
1640 struct objc_submethod_helper_data
{
1641 int (*f
) (CORE_ADDR
, CORE_ADDR
*);
1647 find_objc_msgcall_submethod_helper (void * arg
)
1649 struct objc_submethod_helper_data
*s
=
1650 (struct objc_submethod_helper_data
*) arg
;
1652 if (s
->f (s
->pc
, s
->new_pc
) == 0)
1659 find_objc_msgcall_submethod (int (*f
) (CORE_ADDR
, CORE_ADDR
*),
1663 struct objc_submethod_helper_data s
;
1669 if (catch_errors (find_objc_msgcall_submethod_helper
,
1671 "Unable to determine target of Objective-C method call (ignoring):\n",
1672 RETURN_MASK_ALL
) == 0)
1679 find_objc_msgcall (CORE_ADDR pc
, CORE_ADDR
*new_pc
)
1683 find_objc_msgsend ();
1689 for (i
= 0; i
< nmethcalls
; i
++)
1690 if ((pc
>= methcalls
[i
].begin
) && (pc
< methcalls
[i
].end
))
1692 if (methcalls
[i
].stop_at
!= NULL
)
1693 return find_objc_msgcall_submethod (methcalls
[i
].stop_at
,
1702 extern initialize_file_ftype _initialize_objc_language
; /* -Wmissing-prototypes */
1705 _initialize_objc_language (void)
1707 add_language (&objc_language_defn
);
1708 add_info ("selectors", selectors_info
, /* INFO SELECTORS command. */
1709 _("All Objective-C selectors, or those matching REGEXP."));
1710 add_info ("classes", classes_info
, /* INFO CLASSES command. */
1711 _("All Objective-C classes, or those matching REGEXP."));
1712 add_com ("print-object", class_vars
, print_object_command
,
1713 _("Ask an Objective-C object to print itself."));
1714 add_com_alias ("po", "print-object", class_vars
, 1);
1718 read_objc_method (CORE_ADDR addr
, struct objc_method
*method
)
1720 method
->name
= read_memory_unsigned_integer (addr
+ 0, 4);
1721 method
->types
= read_memory_unsigned_integer (addr
+ 4, 4);
1722 method
->imp
= read_memory_unsigned_integer (addr
+ 8, 4);
1726 unsigned long read_objc_methlist_nmethods (CORE_ADDR addr
)
1728 return read_memory_unsigned_integer (addr
+ 4, 4);
1732 read_objc_methlist_method (CORE_ADDR addr
, unsigned long num
,
1733 struct objc_method
*method
)
1735 gdb_assert (num
< read_objc_methlist_nmethods (addr
));
1736 read_objc_method (addr
+ 8 + (12 * num
), method
);
1740 read_objc_object (CORE_ADDR addr
, struct objc_object
*object
)
1742 object
->isa
= read_memory_unsigned_integer (addr
, 4);
1746 read_objc_super (CORE_ADDR addr
, struct objc_super
*super
)
1748 super
->receiver
= read_memory_unsigned_integer (addr
, 4);
1749 super
->class = read_memory_unsigned_integer (addr
+ 4, 4);
1753 read_objc_class (CORE_ADDR addr
, struct objc_class
*class)
1755 class->isa
= read_memory_unsigned_integer (addr
, 4);
1756 class->super_class
= read_memory_unsigned_integer (addr
+ 4, 4);
1757 class->name
= read_memory_unsigned_integer (addr
+ 8, 4);
1758 class->version
= read_memory_unsigned_integer (addr
+ 12, 4);
1759 class->info
= read_memory_unsigned_integer (addr
+ 16, 4);
1760 class->instance_size
= read_memory_unsigned_integer (addr
+ 18, 4);
1761 class->ivars
= read_memory_unsigned_integer (addr
+ 24, 4);
1762 class->methods
= read_memory_unsigned_integer (addr
+ 28, 4);
1763 class->cache
= read_memory_unsigned_integer (addr
+ 32, 4);
1764 class->protocols
= read_memory_unsigned_integer (addr
+ 36, 4);
1768 find_implementation_from_class (CORE_ADDR
class, CORE_ADDR sel
)
1770 CORE_ADDR subclass
= class;
1772 while (subclass
!= 0)
1775 struct objc_class class_str
;
1776 unsigned mlistnum
= 0;
1778 read_objc_class (subclass
, &class_str
);
1783 unsigned long nmethods
;
1786 mlist
= read_memory_unsigned_integer (class_str
.methods
+
1791 nmethods
= read_objc_methlist_nmethods (mlist
);
1793 for (i
= 0; i
< nmethods
; i
++)
1795 struct objc_method meth_str
;
1796 read_objc_methlist_method (mlist
, i
, &meth_str
);
1800 "checking method 0x%lx against selector 0x%lx\n",
1801 meth_str
.name
, sel
);
1804 if (meth_str
.name
== sel
)
1805 /* FIXME: hppa arch was doing a pointer dereference
1806 here. There needs to be a better way to do that. */
1807 return meth_str
.imp
;
1811 subclass
= class_str
.super_class
;
1818 find_implementation (CORE_ADDR object
, CORE_ADDR sel
)
1820 struct objc_object ostr
;
1824 read_objc_object (object
, &ostr
);
1828 return find_implementation_from_class (ostr
.isa
, sel
);
1831 #define OBJC_FETCH_POINTER_ARGUMENT(argi) \
1832 gdbarch_fetch_pointer_argument (current_gdbarch, get_current_frame (), \
1833 argi, builtin_type_void_func_ptr)
1836 resolve_msgsend (CORE_ADDR pc
, CORE_ADDR
*new_pc
)
1842 object
= OBJC_FETCH_POINTER_ARGUMENT (0);
1843 sel
= OBJC_FETCH_POINTER_ARGUMENT (1);
1845 res
= find_implementation (object
, sel
);
1854 resolve_msgsend_stret (CORE_ADDR pc
, CORE_ADDR
*new_pc
)
1860 object
= OBJC_FETCH_POINTER_ARGUMENT (1);
1861 sel
= OBJC_FETCH_POINTER_ARGUMENT (2);
1863 res
= find_implementation (object
, sel
);
1872 resolve_msgsend_super (CORE_ADDR pc
, CORE_ADDR
*new_pc
)
1874 struct objc_super sstr
;
1880 super
= OBJC_FETCH_POINTER_ARGUMENT (0);
1881 sel
= OBJC_FETCH_POINTER_ARGUMENT (1);
1883 read_objc_super (super
, &sstr
);
1884 if (sstr
.class == 0)
1887 res
= find_implementation_from_class (sstr
.class, sel
);
1896 resolve_msgsend_super_stret (CORE_ADDR pc
, CORE_ADDR
*new_pc
)
1898 struct objc_super sstr
;
1904 super
= OBJC_FETCH_POINTER_ARGUMENT (1);
1905 sel
= OBJC_FETCH_POINTER_ARGUMENT (2);
1907 read_objc_super (super
, &sstr
);
1908 if (sstr
.class == 0)
1911 res
= find_implementation_from_class (sstr
.class, sel
);