1 /* Java language support routines for GDB, the GNU debugger.
2 Copyright 1997, 1998 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
23 #include "expression.h"
24 #include "parser-defs.h"
30 #include "gdb_string.h"
37 struct type
*java_int_type
;
38 struct type
*java_byte_type
;
39 struct type
*java_short_type
;
40 struct type
*java_long_type
;
41 struct type
*java_boolean_type
;
42 struct type
*java_char_type
;
43 struct type
*java_float_type
;
44 struct type
*java_double_type
;
45 struct type
*java_void_type
;
47 static void java_emit_char
PARAMS ((int c
, GDB_FILE
*stream
, int quoter
));
49 /* This objfile contains symtabs that have been dynamically created
50 to record dynamically loaded Java classes and dynamically
51 compiled java methods. */
53 static struct objfile
*dynamics_objfile
= NULL
;
55 static struct type
*java_link_class_type
PARAMS ((struct type
*, value_ptr
));
57 static struct objfile
*
58 get_dynamics_objfile ()
60 if (dynamics_objfile
== NULL
)
63 /* CHECK WITH STU -- edie. Params 3 and 4 are USER_LOADED and IS_SOLIB.
64 USER_LOADED - used by run_command to remove old objfile entries which
66 IS_SOLIB - 1 if the object file is a shared library */
68 dynamics_objfile
= allocate_objfile (NULL
, 0, 0, 0);
70 return dynamics_objfile
;
74 /* symtab contains classes read from the inferior. */
76 static struct symtab
*class_symtab
= NULL
;
78 /* Maximum number of class in class_symtab before relocation is needed. */
80 static int class_symtab_space
;
83 get_java_class_symtab ()
85 if (class_symtab
== NULL
)
87 struct objfile
*objfile
= get_dynamics_objfile();
88 struct blockvector
*bv
;
90 class_symtab
= allocate_symtab ("<java-classes>", objfile
);
91 class_symtab
->language
= language_java
;
92 bv
= (struct blockvector
*)
93 obstack_alloc (&objfile
->symbol_obstack
, sizeof (struct blockvector
));
94 BLOCKVECTOR_NBLOCKS (bv
) = 1;
95 BLOCKVECTOR (class_symtab
) = bv
;
97 /* Allocate dummy STATIC_BLOCK. */
99 obstack_alloc (&objfile
->symbol_obstack
, sizeof (struct block
));
100 BLOCK_NSYMS (bl
) = 0;
101 BLOCK_START (bl
) = 0;
103 BLOCK_FUNCTION (bl
) = NULL
;
104 BLOCK_SUPERBLOCK (bl
) = NULL
;
105 BLOCK_GCC_COMPILED (bl
) = 0;
106 BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
) = bl
;
108 /* Allocate GLOBAL_BLOCK. This has to be relocatable. */
109 class_symtab_space
= 128;
110 bl
= (struct block
*)
111 mmalloc (objfile
->md
,
112 sizeof (struct block
)
113 + ((class_symtab_space
- 1) * sizeof (struct symbol
*)));
114 *bl
= *BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
115 BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
) = bl
;
116 class_symtab
->free_ptr
= (char *) bl
;
122 add_class_symtab_symbol (sym
)
125 struct symtab
*symtab
= get_java_class_symtab ();
126 struct blockvector
*bv
= BLOCKVECTOR (symtab
);
127 struct block
*bl
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
128 if (BLOCK_NSYMS (bl
) >= class_symtab_space
)
130 /* Need to re-allocate. */
131 class_symtab_space
*= 2;
132 bl
= (struct block
*)
133 mrealloc (symtab
->objfile
->md
, bl
,
134 sizeof (struct block
)
135 + ((class_symtab_space
- 1) * sizeof (struct symbol
*)));
136 class_symtab
->free_ptr
= (char *) bl
;
137 BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
) = bl
;
140 BLOCK_SYM (bl
, BLOCK_NSYMS (bl
)) = sym
;
141 BLOCK_NSYMS (bl
) = BLOCK_NSYMS (bl
) + 1;
145 add_class_symbol (type
, addr
)
150 sym
= (struct symbol
*)
151 obstack_alloc (&dynamics_objfile
->symbol_obstack
, sizeof (struct symbol
));
152 memset (sym
, 0, sizeof (struct symbol
));
153 SYMBOL_LANGUAGE (sym
) = language_java
;
154 SYMBOL_NAME (sym
) = TYPE_TAG_NAME (type
);
155 SYMBOL_CLASS (sym
) = LOC_TYPEDEF
;
156 /* SYMBOL_VALUE (sym) = valu;*/
157 SYMBOL_TYPE (sym
) = type
;
158 SYMBOL_NAMESPACE (sym
) = STRUCT_NAMESPACE
;
159 SYMBOL_VALUE_ADDRESS (sym
) = addr
;
165 java_lookup_class (name
)
169 sym
= lookup_symbol (name
, expression_context_block
, STRUCT_NAMESPACE
,
170 (int *) 0, (struct symtab
**) NULL
);
172 return SYMBOL_TYPE (sym
);
175 if (called from parser
)
177 call
lookup_class (or similar
) in inferior
;
180 addr
= found in inferior
;
185 type
= alloc_type (objfile
);
186 TYPE_CODE (type
) = TYPE_CODE_STRUCT
;
187 INIT_CPLUS_SPECIFIC (type
);
188 TYPE_TAG_NAME (type
) = obsavestring (name
, strlen(name
), &objfile
->type_obstack
);
189 TYPE_FLAGS (type
) |= TYPE_FLAG_STUB
;
193 /* FIXME - should search inferior's symbol table. */
198 /* Return a nul-terminated string (allocated on OBSTACK) for
199 a name given by NAME (which has type Utf8Const*). */
202 get_java_utf8_name (obstack
, name
)
203 struct obstack
*obstack
;
207 value_ptr temp
= name
;
210 temp
= value_struct_elt (&temp
, NULL
, "length", NULL
, "structure");
211 name_length
= (int) value_as_long (temp
);
212 data_addr
= VALUE_ADDRESS (temp
) + VALUE_OFFSET (temp
)
213 + TYPE_LENGTH (VALUE_TYPE (temp
));
214 chrs
= obstack_alloc (obstack
, name_length
+1);
215 chrs
[name_length
] = '\0';
216 read_memory_section (data_addr
, chrs
, name_length
, NULL
);
221 java_class_from_object (obj_val
)
224 /* This is all rather inefficient, since the offsets of dtable and
225 class are fixed. FIXME */
226 value_ptr dtable_val
;
228 if (TYPE_CODE (VALUE_TYPE (obj_val
)) == TYPE_CODE_PTR
229 && TYPE_LENGTH (TYPE_TARGET_TYPE (VALUE_TYPE (obj_val
))) == 0)
232 sym
= lookup_symbol ("Hjava_lang_Object", NULL
, STRUCT_NAMESPACE
,
233 (int *) 0, (struct symtab
**) NULL
);
235 obj_val
= value_at (VALUE_TYPE (sym
),
236 value_as_pointer (obj_val
), NULL
);
239 dtable_val
= value_struct_elt (&obj_val
, NULL
, "dtable", NULL
, "structure");
240 return value_struct_elt (&dtable_val
, NULL
, "class", NULL
, "structure");
243 /* Check if CLASS_IS_PRIMITIVE(value of clas): */
245 java_class_is_primitive (clas
)
248 value_ptr dtable
= value_struct_elt (&clas
, NULL
, "dtable", NULL
, "struct");
249 CORE_ADDR i
= value_as_pointer (dtable
);
250 return (int) (i
& 0x7fffffff) == (int) 0x7fffffff;
253 /* Read a Kaffe Class object, and generated a gdb (TYPE_CODE_STRUCT) type. */
256 type_from_class (clas
)
262 struct objfile
*objfile
;
270 type
= check_typedef (VALUE_TYPE (clas
));
271 if (TYPE_CODE (type
) == TYPE_CODE_PTR
)
273 if (value_logical_not (clas
))
275 clas
= value_ind (clas
);
277 addr
= VALUE_ADDRESS (clas
) + VALUE_OFFSET (clas
);
280 get_java_class_symtab ();
281 bl
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (class_symtab
), GLOBAL_BLOCK
);
282 for (i
= BLOCK_NSYMS (bl
); --i
>= 0; )
284 struct symbol
*sym
= BLOCK_SYM (bl
, i
);
285 if (SYMBOL_VALUE_ADDRESS (sym
) == addr
)
286 return SYMBOL_TYPE (sym
);
290 objfile
= get_dynamics_objfile();
291 if (java_class_is_primitive (clas
))
295 sig
= value_struct_elt (&temp
, NULL
, "msize", NULL
, "structure");
296 return java_primitive_type (value_as_long (sig
));
299 /* Get Class name. */
300 /* if clasloader non-null, prepend loader address. FIXME */
302 utf8_name
= value_struct_elt (&temp
, NULL
, "name", NULL
, "structure");
303 name
= get_java_utf8_name (&objfile
->type_obstack
, utf8_name
);
304 for (nptr
= name
; *nptr
!= 0; nptr
++)
310 type
= java_lookup_class (name
);
314 type
= alloc_type (objfile
);
315 TYPE_CODE (type
) = TYPE_CODE_STRUCT
;
316 INIT_CPLUS_SPECIFIC (type
);
322 /* Set array element type. */
323 temp
= value_struct_elt (&temp
, NULL
, "methods", NULL
, "structure");
324 VALUE_TYPE (temp
) = lookup_pointer_type (VALUE_TYPE (clas
));
325 TYPE_TARGET_TYPE (type
) = type_from_class (temp
);
328 ALLOCATE_CPLUS_STRUCT_TYPE (type
);
329 TYPE_TAG_NAME (type
) = name
;
331 add_class_symtab_symbol (add_class_symbol (type
, addr
));
332 return java_link_class_type (type
, clas
);
335 /* Fill in class TYPE with data from the CLAS value. */
338 java_link_class_type (type
, clas
)
343 char *unqualified_name
;
344 char *name
= TYPE_TAG_NAME (type
);
345 int ninterfaces
, nfields
, nmethods
;
346 int type_is_object
= 0;
347 struct fn_field
*fn_fields
;
348 struct fn_fieldlist
*fn_fieldlists
;
349 value_ptr fields
, field
, method
, methods
;
351 struct objfile
*objfile
= get_dynamics_objfile();
354 unqualified_name
= strrchr (name
, '.');
355 if (unqualified_name
== NULL
)
356 unqualified_name
= name
;
359 temp
= value_struct_elt (&temp
, NULL
, "superclass", NULL
, "structure");
360 if (name
!= NULL
&& strcmp (name
, "java.lang.Object") == 0)
362 tsuper
= get_java_object_type ();
363 if (tsuper
&& TYPE_CODE (tsuper
) == TYPE_CODE_PTR
)
364 tsuper
= TYPE_TARGET_TYPE (tsuper
);
368 tsuper
= type_from_class (temp
);
374 ninterfaces
= value_as_long (value_struct_elt (&temp
, NULL
, "interface_len", NULL
, "structure"));
376 TYPE_N_BASECLASSES (type
) = (tsuper
== NULL
? 0 : 1) + ninterfaces
;
378 nfields
= value_as_long (value_struct_elt (&temp
, NULL
, "nfields", NULL
, "structure"));
379 nfields
+= TYPE_N_BASECLASSES (type
);
380 nfields
++; /* Add one for dummy "class" field. */
381 TYPE_NFIELDS (type
) = nfields
;
382 TYPE_FIELDS (type
) = (struct field
*)
383 TYPE_ALLOC (type
, sizeof (struct field
) * nfields
);
385 memset (TYPE_FIELDS (type
), 0, sizeof (struct field
) * nfields
);
387 TYPE_FIELD_PRIVATE_BITS (type
) =
388 (B_TYPE
*) TYPE_ALLOC (type
, B_BYTES (nfields
));
389 B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type
), nfields
);
391 TYPE_FIELD_PROTECTED_BITS (type
) =
392 (B_TYPE
*) TYPE_ALLOC (type
, B_BYTES (nfields
));
393 B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type
), nfields
);
395 TYPE_FIELD_IGNORE_BITS (type
) =
396 (B_TYPE
*) TYPE_ALLOC (type
, B_BYTES (nfields
));
397 B_CLRALL (TYPE_FIELD_IGNORE_BITS (type
), nfields
);
399 TYPE_FIELD_VIRTUAL_BITS (type
) = (B_TYPE
*)
400 TYPE_ALLOC (type
, B_BYTES (TYPE_N_BASECLASSES (type
)));
401 B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type
), TYPE_N_BASECLASSES (type
));
405 TYPE_BASECLASS (type
, 0) = tsuper
;
407 SET_TYPE_FIELD_PRIVATE (type
, 0);
411 if (name
[0] == '[' && tsuper
!= NULL
)
413 TYPE_LENGTH (type
) = TYPE_LENGTH (tsuper
) + 4; /* size with "length" */
418 temp
= value_struct_elt (&temp
, NULL
, "bfsize", NULL
, "structure");
419 TYPE_LENGTH (type
) = value_as_long (temp
);
423 nfields
--; /* First set up dummy "class" field. */
424 SET_FIELD_PHYSADDR (TYPE_FIELD (type
, nfields
),
425 VALUE_ADDRESS (clas
) + VALUE_OFFSET (clas
));
426 TYPE_FIELD_NAME (type
, nfields
) = "class";
427 TYPE_FIELD_TYPE (type
, nfields
) = VALUE_TYPE (clas
);
428 SET_TYPE_FIELD_PRIVATE (type
, nfields
);
430 for (i
= TYPE_N_BASECLASSES (type
); i
< nfields
; i
++)
437 fields
= value_struct_elt (&temp
, NULL
, "fields", NULL
, "structure");
438 field
= value_ind (fields
);
441 { /* Re-use field value for next field. */
442 VALUE_ADDRESS (field
) += TYPE_LENGTH (VALUE_TYPE (field
));
443 VALUE_LAZY (field
) = 1;
446 temp
= value_struct_elt (&temp
, NULL
, "name", NULL
, "structure");
447 TYPE_FIELD_NAME (type
, i
) =
448 get_java_utf8_name (&objfile
->type_obstack
, temp
);
450 accflags
= value_as_long (value_struct_elt (&temp
, NULL
, "accflags",
453 temp
= value_struct_elt (&temp
, NULL
, "info", NULL
, "structure");
454 boffset
= value_as_long (value_struct_elt (&temp
, NULL
, "boffset",
456 if (accflags
& 0x0001) /* public access */
460 if (accflags
& 0x0002) /* private access */
462 SET_TYPE_FIELD_PRIVATE (type
, i
);
464 if (accflags
& 0x0004) /* protected access */
466 SET_TYPE_FIELD_PROTECTED (type
, i
);
468 if (accflags
& 0x0008) /* ACC_STATIC */
469 SET_FIELD_PHYSADDR(TYPE_FIELD(type
, i
), boffset
);
471 TYPE_FIELD_BITPOS (type
, i
) = 8 * boffset
;
472 if (accflags
& 0x8000) /* FIELD_UNRESOLVED_FLAG */
474 TYPE_FIELD_TYPE (type
, i
) = get_java_object_type (); /* FIXME */
480 temp
= value_struct_elt (&temp
, NULL
, "type", NULL
, "structure");
481 ftype
= type_from_class (temp
);
482 if (TYPE_CODE (ftype
) == TYPE_CODE_STRUCT
)
483 ftype
= lookup_pointer_type (ftype
);
484 TYPE_FIELD_TYPE (type
, i
) = ftype
;
489 nmethods
= value_as_long (value_struct_elt (&temp
, NULL
, "nmethods",
491 TYPE_NFN_FIELDS_TOTAL (type
) = nmethods
;
492 j
= nmethods
* sizeof (struct fn_field
);
493 fn_fields
= (struct fn_field
*)
494 obstack_alloc (&dynamics_objfile
->symbol_obstack
, j
);
495 memset (fn_fields
, 0, j
);
496 fn_fieldlists
= (struct fn_fieldlist
*)
497 alloca (nmethods
* sizeof (struct fn_fieldlist
));
500 for (i
= 0; i
< nmethods
; i
++)
507 methods
= value_struct_elt (&temp
, NULL
, "methods", NULL
, "structure");
508 method
= value_ind (methods
);
511 { /* Re-use method value for next method. */
512 VALUE_ADDRESS (method
) += TYPE_LENGTH (VALUE_TYPE (method
));
513 VALUE_LAZY (method
) = 1;
516 /* Get method name. */
518 temp
= value_struct_elt (&temp
, NULL
, "name", NULL
, "structure");
519 mname
= get_java_utf8_name (&objfile
->type_obstack
, temp
);
520 if (strcmp (mname
, "<init>") == 0)
521 mname
= unqualified_name
;
523 /* Check for an existing method with the same name.
524 * This makes building the fn_fieldslists an O(nmethods**2)
525 * operation. That could be using hashing, but I doubt it
526 * is worth it. Note that we do maintain the order of methods
527 * in the inferior's Method table (as long as that is grouped
528 * by method name), which I think is desirable. --PB */
529 for (k
= 0, j
= TYPE_NFN_FIELDS (type
); ; )
532 { /* No match - new method name. */
533 j
= TYPE_NFN_FIELDS(type
)++;
534 fn_fieldlists
[j
].name
= mname
;
535 fn_fieldlists
[j
].length
= 1;
536 fn_fieldlists
[j
].fn_fields
= &fn_fields
[i
];
540 if (strcmp (mname
, fn_fieldlists
[j
].name
) == 0)
541 { /* Found an existing method with the same name. */
543 if (mname
!= unqualified_name
)
544 obstack_free (&objfile
->type_obstack
, mname
);
545 mname
= fn_fieldlists
[j
].name
;
546 fn_fieldlists
[j
].length
++;
547 k
= i
- k
; /* Index of new slot. */
548 /* Shift intervening fn_fields (between k and i) down. */
549 for (l
= i
; l
> k
; l
--) fn_fields
[l
] = fn_fields
[l
-1];
550 for (l
= TYPE_NFN_FIELDS (type
); --l
> j
; )
551 fn_fieldlists
[l
].fn_fields
++;
554 k
+= fn_fieldlists
[j
].length
;
556 fn_fields
[k
].physname
= "";
557 fn_fields
[k
].is_stub
= 1;
558 fn_fields
[k
].type
= make_function_type (java_void_type
, NULL
); /* FIXME*/
559 TYPE_CODE (fn_fields
[k
].type
) = TYPE_CODE_METHOD
;
562 j
= TYPE_NFN_FIELDS(type
) * sizeof (struct fn_fieldlist
);
563 TYPE_FN_FIELDLISTS (type
) = (struct fn_fieldlist
*)
564 obstack_alloc (&dynamics_objfile
->symbol_obstack
, j
);
565 memcpy (TYPE_FN_FIELDLISTS (type
), fn_fieldlists
, j
);
570 static struct type
*java_object_type
;
573 get_java_object_type ()
575 return java_object_type
;
579 is_object_type (type
)
582 CHECK_TYPEDEF (type
);
583 if (TYPE_CODE (type
) == TYPE_CODE_PTR
)
585 struct type
*ttype
= check_typedef (TYPE_TARGET_TYPE (type
));
587 if (TYPE_CODE (ttype
) != TYPE_CODE_STRUCT
)
589 while (TYPE_N_BASECLASSES (ttype
) > 0)
590 ttype
= TYPE_BASECLASS (ttype
, 0);
591 name
= TYPE_TAG_NAME (ttype
);
592 if (name
!= NULL
&& strcmp (name
, "java.lang.Object") == 0)
594 name
= TYPE_NFIELDS (ttype
) > 0 ? TYPE_FIELD_NAME (ttype
, 0) : (char*)0;
595 if (name
!= NULL
&& strcmp (name
, "dtable") == 0)
597 if (java_object_type
== NULL
)
598 java_object_type
= type
;
606 java_primitive_type (signature
)
611 case 'B': return java_byte_type
;
612 case 'S': return java_short_type
;
613 case 'I': return java_int_type
;
614 case 'J': return java_long_type
;
615 case 'Z': return java_boolean_type
;
616 case 'C': return java_char_type
;
617 case 'F': return java_float_type
;
618 case 'D': return java_double_type
;
619 case 'V': return java_void_type
;
621 error ("unknown signature '%c' for primitive type", (char) signature
);
624 /* Return the demangled name of the Java type signature string SIGNATURE,
625 as a freshly allocated copy. */
628 java_demangle_type_signature (signature
)
635 while (*signature
== '[')
640 switch (signature
[0])
643 /* Substract 2 for 'L' and ';', but add 1 for final nul. */
644 result
= xmalloc (strlen (signature
) - 1 + 2 * array
);
647 for ( ; *signature
!= ';' && *signature
!= '\0'; signature
++)
649 if (*signature
== '/')
656 ptr
= TYPE_NAME (java_primitive_type (signature
[0]));
658 result
= xmalloc (i
+ 1 + 2 * array
);
659 strcpy (result
, ptr
);
673 java_lookup_type (signature
)
676 switch (signature
[0])
680 error ("java_lookup_type not fully inmplemented");
682 return java_primitive_type (signature
[0]);
686 /* Return the type of TYPE followed by DIMS pairs of [ ].
687 If DIMS == 0, TYPE is returned. */
690 java_array_type (type
, dims
)
694 struct type
*range_type
;
698 range_type
= create_range_type (NULL
, builtin_type_int
, 0, 0);
700 type
= create_array_type (NULL
, type
, range_type
);
706 /* Create a Java string in the inferior from a (Utf8) literal. */
709 java_value_string (ptr
, len
)
713 error ("not implemented - java_value_string"); /* FIXME */
716 /* Print the character C on STREAM as part of the contents of a literal
717 string whose delimiter is QUOTER. Note that that format for printing
718 characters and strings is language specific. */
721 java_emit_char (c
, stream
, quoter
)
730 fprintf_filtered (stream
, "\\%c", c
);
733 fputs_filtered ("\\b", stream
);
736 fputs_filtered ("\\t", stream
);
739 fputs_filtered ("\\n", stream
);
742 fputs_filtered ("\\f", stream
);
745 fputs_filtered ("\\r", stream
);
749 fputc_filtered (c
, stream
);
751 fprintf_filtered (stream
, "\\u%.4x", (unsigned int) c
);
757 evaluate_subexp_java (expect_type
, exp
, pos
, noside
)
758 struct type
*expect_type
;
759 register struct expression
*exp
;
766 enum exp_opcode op
= exp
->elts
[*pos
].opcode
;
767 value_ptr arg1
, arg2
;
772 if (noside
== EVAL_SKIP
)
775 arg1
= evaluate_subexp_standard (expect_type
, exp
, pos
, EVAL_NORMAL
);
776 if (is_object_type (VALUE_TYPE (arg1
)))
778 struct type
*type
= type_from_class (java_class_from_object (arg1
));
779 arg1
= value_cast (lookup_pointer_type (type
), arg1
);
781 if (noside
== EVAL_SKIP
)
783 return value_ind (arg1
);
785 case BINOP_SUBSCRIPT
:
787 arg1
= evaluate_subexp_with_coercion (exp
, pos
, noside
);
788 arg2
= evaluate_subexp_with_coercion (exp
, pos
, noside
);
789 if (noside
== EVAL_SKIP
)
791 /* If the user attempts to subscript something that is not an
792 array or pointer type (like a plain int variable for example),
793 then report this as an error. */
796 type
= check_typedef (VALUE_TYPE (arg1
));
797 name
= TYPE_NAME (type
);
798 if (TYPE_CODE (type
) == TYPE_CODE_PTR
)
800 type
= check_typedef (TYPE_TARGET_TYPE (type
));
801 if (TYPE_CODE (type
) == TYPE_CODE_STRUCT
802 && TYPE_TAG_NAME (type
) != NULL
803 && TYPE_TAG_NAME (type
)[0] == '[')
807 struct type
*el_type
;
810 value_ptr clas
= java_class_from_object(arg1
);
811 value_ptr temp
= clas
;
812 /* Get CLASS_ELEMENT_TYPE of the array type. */
813 temp
= value_struct_elt (&temp
, NULL
, "methods",
815 VALUE_TYPE (temp
) = VALUE_TYPE (clas
);
816 el_type
= type_from_class (temp
);
817 if (TYPE_CODE (el_type
) == TYPE_CODE_STRUCT
)
818 el_type
= lookup_pointer_type (el_type
);
820 if (noside
== EVAL_AVOID_SIDE_EFFECTS
)
821 return value_zero (el_type
, VALUE_LVAL (arg1
));
822 address
= value_as_pointer (arg1
);
823 address
+= JAVA_OBJECT_SIZE
;
824 read_memory (address
, buf4
, 4);
825 length
= (long) extract_signed_integer (buf4
, 4);
826 index
= (long) value_as_long (arg2
);
827 if (index
>= length
|| index
< 0)
828 error ("array index (%ld) out of bounds (length: %ld)",
830 address
= (address
+ 4) + index
* TYPE_LENGTH (el_type
);
831 return value_at (el_type
, address
, NULL
);
834 else if (TYPE_CODE (type
) == TYPE_CODE_ARRAY
)
836 if (noside
== EVAL_AVOID_SIDE_EFFECTS
)
837 return value_zero (TYPE_TARGET_TYPE (type
), VALUE_LVAL (arg1
));
839 return value_subscript (arg1
, arg2
);
842 name
== TYPE_TAG_NAME (type
);
844 error ("cannot subscript something of type `%s'", name
);
846 error ("cannot subscript requested type");
850 i
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
851 (*pos
) += 3 + BYTES_TO_EXP_ELEM (i
+ 1);
852 if (noside
== EVAL_SKIP
)
854 return java_value_string (&exp
->elts
[pc
+ 2].string
, i
);
856 case STRUCTOP_STRUCT
:
857 arg1
= evaluate_subexp_standard (expect_type
, exp
, pos
, noside
);
858 /* Convert object field (such as TYPE.class) to reference. */
859 if (TYPE_CODE (VALUE_TYPE (arg1
)) == TYPE_CODE_STRUCT
)
860 arg1
= value_addr (arg1
);
866 return evaluate_subexp_standard (expect_type
, exp
, pos
, noside
);
868 return value_from_longest (builtin_type_long
, (LONGEST
) 1);
872 java_create_fundamental_type (objfile
, typeid)
873 struct objfile
*objfile
;
878 case FT_VOID
: return java_void_type
;
879 case FT_BOOLEAN
: return java_boolean_type
;
880 case FT_CHAR
: return java_char_type
;
881 case FT_FLOAT
: return java_float_type
;
882 case FT_DBL_PREC_FLOAT
: return java_double_type
;
883 case FT_BYTE
: case FT_SIGNED_CHAR
: return java_byte_type
;
884 case FT_SHORT
: case FT_SIGNED_SHORT
: return java_short_type
;
885 case FT_INTEGER
: case FT_SIGNED_INTEGER
: return java_int_type
;
886 case FT_LONG
: case FT_SIGNED_LONG
: return java_long_type
;
888 return c_create_fundamental_type (objfile
, typeid);
891 /* Table mapping opcodes into strings for printing operators
892 and precedences of the operators. */
894 const struct op_print java_op_print_tab
[] =
896 {",", BINOP_COMMA
, PREC_COMMA
, 0},
897 {"=", BINOP_ASSIGN
, PREC_ASSIGN
, 1},
898 {"||", BINOP_LOGICAL_OR
, PREC_LOGICAL_OR
, 0},
899 {"&&", BINOP_LOGICAL_AND
, PREC_LOGICAL_AND
, 0},
900 {"|", BINOP_BITWISE_IOR
, PREC_BITWISE_IOR
, 0},
901 {"^", BINOP_BITWISE_XOR
, PREC_BITWISE_XOR
, 0},
902 {"&", BINOP_BITWISE_AND
, PREC_BITWISE_AND
, 0},
903 {"==", BINOP_EQUAL
, PREC_EQUAL
, 0},
904 {"!=", BINOP_NOTEQUAL
, PREC_EQUAL
, 0},
905 {"<=", BINOP_LEQ
, PREC_ORDER
, 0},
906 {">=", BINOP_GEQ
, PREC_ORDER
, 0},
907 {">", BINOP_GTR
, PREC_ORDER
, 0},
908 {"<", BINOP_LESS
, PREC_ORDER
, 0},
909 {">>", BINOP_RSH
, PREC_SHIFT
, 0},
910 {"<<", BINOP_LSH
, PREC_SHIFT
, 0},
912 {">>>", BINOP_
???, PREC_SHIFT
, 0},
914 {"+", BINOP_ADD
, PREC_ADD
, 0},
915 {"-", BINOP_SUB
, PREC_ADD
, 0},
916 {"*", BINOP_MUL
, PREC_MUL
, 0},
917 {"/", BINOP_DIV
, PREC_MUL
, 0},
918 {"%", BINOP_REM
, PREC_MUL
, 0},
919 {"-", UNOP_NEG
, PREC_PREFIX
, 0},
920 {"!", UNOP_LOGICAL_NOT
, PREC_PREFIX
, 0},
921 {"~", UNOP_COMPLEMENT
, PREC_PREFIX
, 0},
922 {"*", UNOP_IND
, PREC_PREFIX
, 0},
924 {"instanceof", ???, ???, 0},
926 {"++", UNOP_PREINCREMENT
, PREC_PREFIX
, 0},
927 {"--", UNOP_PREDECREMENT
, PREC_PREFIX
, 0},
931 const struct language_defn java_language_defn
= {
932 "java", /* Language name */
939 evaluate_subexp_java
,
940 c_printchar
, /* Print a character constant */
941 c_printstr
, /* Function to print string constant */
942 java_emit_char
, /* Function to print a single character */
943 java_create_fundamental_type
, /* Create fundamental type in this language */
944 java_print_type
, /* Print a type using appropriate syntax */
945 java_val_print
, /* Print a value using appropriate syntax */
946 java_value_print
, /* Print a top-level value */
947 {"", "", "", ""}, /* Binary format info */
948 {"0%lo", "0", "o", ""}, /* Octal format info */
949 {"%ld", "", "d", ""}, /* Decimal format info */
950 {"0x%lx", "0x", "x", ""}, /* Hex format info */
951 java_op_print_tab
, /* expression operators for printing */
952 0, /* not c-style arrays */
953 0, /* String lower bound */
954 &builtin_type_char
, /* Type of string elements */
959 _initialize_java_language ()
962 java_int_type
= init_type (TYPE_CODE_INT
, 4, 0, "int", NULL
);
963 java_short_type
= init_type (TYPE_CODE_INT
, 2, 0, "short", NULL
);
964 java_long_type
= init_type (TYPE_CODE_INT
, 8, 0, "long", NULL
);
965 java_byte_type
= init_type (TYPE_CODE_INT
, 1, 0, "byte", NULL
);
966 java_boolean_type
= init_type (TYPE_CODE_BOOL
, 1, 0, "boolean", NULL
);
967 java_char_type
= init_type (TYPE_CODE_CHAR
, 2, 0, "char", NULL
);
968 java_float_type
= init_type (TYPE_CODE_FLT
, 4, 0, "float", NULL
);
969 java_double_type
= init_type (TYPE_CODE_FLT
, 8, 0, "double", NULL
);
970 java_void_type
= init_type (TYPE_CODE_VOID
, 1, 0, "void", NULL
);
972 add_language (&java_language_defn
);
975 /* Cleanup code that should be run on every "run".
976 We should use make_run_cleanup to have this be called.
977 But will that mess up values in value histry? FIXME */
979 void java_rerun_cleanup ()
981 if (class_symtab
!= NULL
)
983 free_symtab (class_symtab
); /* ??? */
986 if (dynamics_objfile
!= NULL
)
988 free_objfile (dynamics_objfile
);
989 dynamics_objfile
= NULL
;
992 java_object_type
= NULL
;