1 /* Java language support routines for GDB, the GNU debugger.
2 Copyright 1997 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 struct type
*java_object_type
;
49 /* This objfile contains symtabs that have been dynamically created
50 to record dynamically loaded Java classes and dynamically
51 compiled java methods. */
52 struct objfile
*dynamics_objfile
= NULL
;
54 struct type
*java_link_class_type
PARAMS((struct type
*, value_ptr
));
57 get_dynamics_objfile ()
59 if (dynamics_objfile
== NULL
)
61 dynamics_objfile
= allocate_objfile (NULL
, 0);
63 return dynamics_objfile
;
67 /* symtab contains classes read from the inferior. */
69 static struct symtab
*class_symtab
= NULL
;
71 /* Maximum number of class in class_symtab before relocation is needed. */
73 static int class_symtab_space
;
76 get_java_class_symtab ()
78 if (class_symtab
== NULL
)
80 struct objfile
*objfile
= get_dynamics_objfile();
81 struct blockvector
*bv
;
83 class_symtab
= allocate_symtab ("<java-classes>", objfile
);
84 class_symtab
->language
= language_java
;
85 bv
= (struct blockvector
*)
86 obstack_alloc (&objfile
->symbol_obstack
, sizeof (struct blockvector
));
87 BLOCKVECTOR_NBLOCKS (bv
) = 1;
88 BLOCKVECTOR (class_symtab
) = bv
;
90 /* Allocate dummy STATIC_BLOCK. */
92 obstack_alloc (&objfile
->symbol_obstack
, sizeof (struct block
));
96 BLOCK_FUNCTION (bl
) = NULL
;
97 BLOCK_SUPERBLOCK (bl
) = NULL
;
98 BLOCK_GCC_COMPILED (bl
) = 0;
99 BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
) = bl
;
101 /* Allocate GLOBAL_BLOCK. This has to be relocatable. */
102 class_symtab_space
= 128;
103 bl
= (struct block
*)
104 mmalloc (objfile
->md
,
105 sizeof (struct block
)
106 + ((class_symtab_space
- 1) * sizeof (struct symbol
*)));
107 *bl
= *BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
108 BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
) = bl
;
109 class_symtab
->free_ptr
= (char *) bl
;
115 add_class_symtab_symbol (sym
)
118 struct symtab
*symtab
= get_java_class_symtab ();
119 struct blockvector
*bv
= BLOCKVECTOR (symtab
);
120 struct block
*bl
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
121 if (BLOCK_NSYMS (bl
) >= class_symtab_space
)
123 /* Need to re-allocate. */
124 class_symtab_space
*= 2;
125 bl
= (struct block
*)
126 mrealloc (symtab
->objfile
->md
, bl
,
127 sizeof (struct block
)
128 + ((class_symtab_space
- 1) * sizeof (struct symbol
*)));
129 class_symtab
->free_ptr
= (char *) bl
;
130 BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
) = bl
;
133 BLOCK_SYM (bl
, BLOCK_NSYMS (bl
)) = sym
;
134 BLOCK_NSYMS (bl
) = BLOCK_NSYMS (bl
) + 1;
138 add_class_symbol (type
, addr
)
143 sym
= (struct symbol
*)
144 obstack_alloc (&dynamics_objfile
->symbol_obstack
, sizeof (struct symbol
));
145 memset (sym
, 0, sizeof (struct symbol
));
146 SYMBOL_LANGUAGE (sym
) = language_java
;
147 SYMBOL_NAME (sym
) = TYPE_TAG_NAME (type
);
148 SYMBOL_CLASS (sym
) = LOC_TYPEDEF
;
149 /* SYMBOL_VALUE (sym) = valu;*/
150 SYMBOL_TYPE (sym
) = type
;
151 SYMBOL_NAMESPACE (sym
) = STRUCT_NAMESPACE
;
152 SYMBOL_VALUE_ADDRESS (sym
) = addr
;
158 java_lookup_class (name
)
162 sym
= lookup_symbol (name
, expression_context_block
, STRUCT_NAMESPACE
,
163 (int *) 0, (struct symtab
**) NULL
);
165 return SYMBOL_TYPE (sym
);
168 if (called from parser
)
170 call
lookup_class (or similar
) in inferior
;
173 addr
= found in inferior
;
178 type
= alloc_type (objfile
);
179 TYPE_CODE (type
) = TYPE_CODE_STRUCT
;
180 INIT_CPLUS_SPECIFIC (type
);
181 TYPE_TAG_NAME (type
) = obsavestring (name
, strlen(name
), &objfile
->type_obstack
);
182 TYPE_FLAGS (type
) |= TYPE_FLAG_STUB
;
186 /* FIXME - should search inferior's symbol table. */
191 /* Return a nul-terminated string (allocated on OBSTACK) for
192 a name given by NAME (which has type Utf8Const*). */
195 get_java_utf8_name (obstack
, name
)
196 struct obstack
*obstack
;
200 value_ptr temp
= name
;
203 temp
= value_struct_elt (&temp
, NULL
, "length", NULL
, "structure");
204 name_length
= (int) value_as_long (temp
);
205 data_addr
= VALUE_ADDRESS (temp
) + VALUE_OFFSET (temp
)
206 + TYPE_LENGTH (VALUE_TYPE (temp
));
207 chrs
= obstack_alloc (obstack
, name_length
+1);
208 chrs
[name_length
] = '\0';
209 read_memory_section (data_addr
, chrs
, name_length
, NULL
);
214 java_class_from_object (obj_val
)
217 /* This is all rather inefficient, since the offsets of dtable and
218 class are fixed. FIXME */
219 value_ptr dtable_val
;
221 if (TYPE_CODE (VALUE_TYPE (obj_val
)) == TYPE_CODE_PTR
222 && TYPE_LENGTH (TYPE_TARGET_TYPE (VALUE_TYPE (obj_val
))) == 0)
225 sym
= lookup_symbol ("Hjava_lang_Object", NULL
, STRUCT_NAMESPACE
,
226 (int *) 0, (struct symtab
**) NULL
);
228 obj_val
= value_at (VALUE_TYPE (sym
),
229 value_as_pointer (obj_val
), NULL
);
232 dtable_val
= value_struct_elt (&obj_val
, NULL
, "dtable", NULL
, "structure");
233 return value_struct_elt (&dtable_val
, NULL
, "class", NULL
, "structure");
236 /* Check if CLASS_IS_PRIMITIVE(value of clas): */
238 java_class_is_primitive (clas
)
241 value_ptr dtable
= value_struct_elt (&clas
, NULL
, "dtable", NULL
, "struct");
242 CORE_ADDR i
= value_as_pointer (dtable
);
243 return (int) (i
& 0x7fffffff) == (int) 0x7fffffff;
246 /* Read a Kaffe Class object, and generated a gdb (TYPE_CODE_STRUCT) type. */
249 type_from_class (clas
)
255 struct objfile
*objfile
;
263 type
= check_typedef (VALUE_TYPE (clas
));
264 if (TYPE_CODE (type
) == TYPE_CODE_PTR
)
266 if (value_logical_not (clas
))
268 clas
= value_ind (clas
);
270 addr
= VALUE_ADDRESS (clas
) + VALUE_OFFSET (clas
);
273 get_java_class_symtab ();
274 bl
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (class_symtab
), GLOBAL_BLOCK
);
275 for (i
= BLOCK_NSYMS (bl
); --i
>= 0; )
277 struct symbol
*sym
= BLOCK_SYM (bl
, i
);
278 if (SYMBOL_VALUE_ADDRESS (sym
) == addr
)
279 return SYMBOL_TYPE (sym
);
283 objfile
= get_dynamics_objfile();
284 if (java_class_is_primitive (clas
))
288 sig
= value_struct_elt (&temp
, NULL
, "msize", NULL
, "structure");
289 return java_primitive_type (value_as_long (sig
));
292 /* Get Class name. */
293 /* if clasloader non-null, prepend loader address. FIXME */
295 utf8_name
= value_struct_elt (&temp
, NULL
, "name", NULL
, "structure");
296 name
= get_java_utf8_name (&objfile
->type_obstack
, utf8_name
);
297 for (nptr
= name
; *nptr
!= 0; nptr
++)
303 type
= java_lookup_class (name
);
307 type
= alloc_type (objfile
);
308 TYPE_CODE (type
) = TYPE_CODE_STRUCT
;
309 INIT_CPLUS_SPECIFIC (type
);
315 /* Set array element type. */
316 temp
= value_struct_elt (&temp
, NULL
, "methods", NULL
, "structure");
317 VALUE_TYPE (temp
) = lookup_pointer_type (VALUE_TYPE (clas
));
318 TYPE_TARGET_TYPE (type
) = type_from_class (temp
);
321 ALLOCATE_CPLUS_STRUCT_TYPE (type
);
322 TYPE_TAG_NAME (type
) = name
;
324 add_class_symtab_symbol (add_class_symbol (type
, addr
));
325 return java_link_class_type (type
, clas
);
328 /* Fill in class TYPE with data from the CLAS value. */
331 java_link_class_type (type
, clas
)
336 char *unqualified_name
;
337 char *name
= TYPE_TAG_NAME (type
);
338 int ninterfaces
, nfields
, nmethods
;
339 int type_is_object
= 0;
340 struct fn_field
*fn_fields
;
341 struct fn_fieldlist
*fn_fieldlists
;
342 value_ptr fields
, field
, method
, methods
;
344 struct objfile
*objfile
= get_dynamics_objfile();
347 unqualified_name
= strrchr (name
, '.');
348 if (unqualified_name
== NULL
)
349 unqualified_name
= name
;
352 temp
= value_struct_elt (&temp
, NULL
, "superclass", NULL
, "structure");
353 if (name
!= NULL
&& strcmp (name
, "java.lang.Object") == 0)
355 tsuper
= get_java_object_type ();
356 if (tsuper
&& TYPE_CODE (tsuper
) == TYPE_CODE_PTR
)
357 tsuper
= TYPE_TARGET_TYPE (tsuper
);
361 tsuper
= type_from_class (temp
);
367 ninterfaces
= value_as_long (value_struct_elt (&temp
, NULL
, "interface_len", NULL
, "structure"));
369 TYPE_N_BASECLASSES (type
) = (tsuper
== NULL
? 0 : 1) + ninterfaces
;
371 nfields
= value_as_long (value_struct_elt (&temp
, NULL
, "nfields", NULL
, "structure"));
372 nfields
+= TYPE_N_BASECLASSES (type
);
373 nfields
++; /* Add one for dummy "class" field. */
374 TYPE_NFIELDS (type
) = nfields
;
375 TYPE_FIELDS (type
) = (struct field
*)
376 TYPE_ALLOC (type
, sizeof (struct field
) * nfields
);
378 memset (TYPE_FIELDS (type
), 0, sizeof (struct field
) * nfields
);
380 TYPE_FIELD_PRIVATE_BITS (type
) =
381 (B_TYPE
*) TYPE_ALLOC (type
, B_BYTES (nfields
));
382 B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type
), nfields
);
384 TYPE_FIELD_PROTECTED_BITS (type
) =
385 (B_TYPE
*) TYPE_ALLOC (type
, B_BYTES (nfields
));
386 B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type
), nfields
);
388 TYPE_FIELD_IGNORE_BITS (type
) =
389 (B_TYPE
*) TYPE_ALLOC (type
, B_BYTES (nfields
));
390 B_CLRALL (TYPE_FIELD_IGNORE_BITS (type
), nfields
);
392 TYPE_FIELD_VIRTUAL_BITS (type
) = (B_TYPE
*)
393 TYPE_ALLOC (type
, B_BYTES (TYPE_N_BASECLASSES (type
)));
394 B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type
), TYPE_N_BASECLASSES (type
));
398 TYPE_BASECLASS (type
, 0) = tsuper
;
400 SET_TYPE_FIELD_PRIVATE (type
, 0);
404 if (name
[0] == '[' && tsuper
!= NULL
)
406 TYPE_LENGTH (type
) = TYPE_LENGTH (tsuper
) + 4; /* size with "length" */
411 temp
= value_struct_elt (&temp
, NULL
, "bfsize", NULL
, "structure");
412 TYPE_LENGTH (type
) = value_as_long (temp
);
416 nfields
--; /* First set up dummy "class" field. */
417 SET_FIELD_PHYSADDR (TYPE_FIELD (type
, nfields
),
418 VALUE_ADDRESS (clas
) + VALUE_OFFSET (clas
));
419 TYPE_FIELD_NAME (type
, nfields
) = "class";
420 TYPE_FIELD_TYPE (type
, nfields
) = VALUE_TYPE (clas
);
421 SET_TYPE_FIELD_PRIVATE (type
, nfields
);
423 for (i
= TYPE_N_BASECLASSES (type
); i
< nfields
; i
++)
430 fields
= value_struct_elt (&temp
, NULL
, "fields", NULL
, "structure");
431 field
= value_ind (fields
);
434 { /* Re-use field value for next field. */
435 VALUE_ADDRESS (field
) += TYPE_LENGTH (VALUE_TYPE (field
));
436 VALUE_LAZY (field
) = 1;
439 temp
= value_struct_elt (&temp
, NULL
, "name", NULL
, "structure");
440 TYPE_FIELD_NAME (type
, i
) =
441 get_java_utf8_name (&objfile
->type_obstack
, temp
);
443 accflags
= value_as_long (value_struct_elt (&temp
, NULL
, "accflags",
446 temp
= value_struct_elt (&temp
, NULL
, "info", NULL
, "structure");
447 boffset
= value_as_long (value_struct_elt (&temp
, NULL
, "boffset",
449 if (accflags
& 0x0001) /* public access */
453 if (accflags
& 0x0002) /* private access */
455 SET_TYPE_FIELD_PRIVATE (type
, i
);
457 if (accflags
& 0x0004) /* protected access */
459 SET_TYPE_FIELD_PROTECTED (type
, i
);
461 if (accflags
& 0x0008) /* ACC_STATIC */
462 SET_FIELD_PHYSADDR(TYPE_FIELD(type
, i
), boffset
);
464 TYPE_FIELD_BITPOS (type
, i
) = 8 * boffset
;
465 if (accflags
& 0x8000) /* FIELD_UNRESOLVED_FLAG */
467 TYPE_FIELD_TYPE (type
, i
) = get_java_object_type (); /* FIXME */
473 temp
= value_struct_elt (&temp
, NULL
, "type", NULL
, "structure");
474 ftype
= type_from_class (temp
);
475 if (TYPE_CODE (ftype
) == TYPE_CODE_STRUCT
)
476 ftype
= lookup_pointer_type (ftype
);
477 TYPE_FIELD_TYPE (type
, i
) = ftype
;
482 nmethods
= value_as_long (value_struct_elt (&temp
, NULL
, "nmethods",
484 TYPE_NFN_FIELDS_TOTAL (type
) = nmethods
;
485 j
= nmethods
* sizeof (struct fn_field
);
486 fn_fields
= (struct fn_field
*)
487 obstack_alloc (&dynamics_objfile
->symbol_obstack
, j
);
488 memset (fn_fields
, 0, j
);
489 fn_fieldlists
= (struct fn_fieldlist
*)
490 alloca (nmethods
* sizeof (struct fn_fieldlist
));
493 for (i
= 0; i
< nmethods
; i
++)
500 methods
= value_struct_elt (&temp
, NULL
, "methods", NULL
, "structure");
501 method
= value_ind (methods
);
504 { /* Re-use method value for next method. */
505 VALUE_ADDRESS (method
) += TYPE_LENGTH (VALUE_TYPE (method
));
506 VALUE_LAZY (method
) = 1;
509 /* Get method name. */
511 temp
= value_struct_elt (&temp
, NULL
, "name", NULL
, "structure");
512 mname
= get_java_utf8_name (&objfile
->type_obstack
, temp
);
513 if (strcmp (mname
, "<init>") == 0)
514 mname
= unqualified_name
;
516 /* Check for an existing method with the same name.
517 * This makes building the fn_fieldslists an O(nmethods**2)
518 * operation. That could be using hashing, but I doubt it
519 * is worth it. Note that we do maintain the order of methods
520 * in the inferior's Method table (as long as that is grouped
521 * by method name), which I think is desirable. --PB */
522 for (k
= 0, j
= TYPE_NFN_FIELDS (type
); ; )
525 { /* No match - new method name. */
526 j
= TYPE_NFN_FIELDS(type
)++;
527 fn_fieldlists
[j
].name
= mname
;
528 fn_fieldlists
[j
].length
= 1;
529 fn_fieldlists
[j
].fn_fields
= &fn_fields
[i
];
533 if (strcmp (mname
, fn_fieldlists
[j
].name
) == 0)
534 { /* Found an existing method with the same name. */
536 if (mname
!= unqualified_name
)
537 obstack_free (&objfile
->type_obstack
, mname
);
538 mname
= fn_fieldlists
[j
].name
;
539 fn_fieldlists
[j
].length
++;
540 k
= i
- k
; /* Index of new slot. */
541 /* Shift intervening fn_fields (between k and i) down. */
542 for (l
= i
; l
> k
; l
--) fn_fields
[l
] = fn_fields
[l
-1];
543 for (l
= TYPE_NFN_FIELDS (type
); --l
> j
; )
544 fn_fieldlists
[l
].fn_fields
++;
547 k
+= fn_fieldlists
[j
].length
;
549 fn_fields
[k
].physname
= "";
550 fn_fields
[k
].is_stub
= 1;
551 fn_fields
[k
].type
= make_function_type (java_void_type
, NULL
); /* FIXME*/
552 TYPE_CODE (fn_fields
[k
].type
) = TYPE_CODE_METHOD
;
555 j
= TYPE_NFN_FIELDS(type
) * sizeof (struct fn_fieldlist
);
556 TYPE_FN_FIELDLISTS (type
) = (struct fn_fieldlist
*)
557 obstack_alloc (&dynamics_objfile
->symbol_obstack
, j
);
558 memcpy (TYPE_FN_FIELDLISTS (type
), fn_fieldlists
, j
);
564 get_java_object_type ()
566 return java_object_type
;
570 is_object_type (type
)
573 CHECK_TYPEDEF (type
);
574 if (TYPE_CODE (type
) == TYPE_CODE_PTR
)
576 struct type
*ttype
= check_typedef (TYPE_TARGET_TYPE (type
));
578 if (TYPE_CODE (ttype
) != TYPE_CODE_STRUCT
)
580 while (TYPE_N_BASECLASSES (ttype
) > 0)
581 ttype
= TYPE_BASECLASS (ttype
, 0);
582 name
= TYPE_TAG_NAME (ttype
);
583 if (name
!= NULL
&& strcmp (name
, "java.lang.Object") == 0)
585 name
= TYPE_NFIELDS (ttype
) > 0 ? TYPE_FIELD_NAME (ttype
, 0) : (char*)0;
586 if (name
!= NULL
&& strcmp (name
, "dtable") == 0)
588 if (java_object_type
== NULL
)
589 java_object_type
= type
;
597 java_primitive_type (signature
)
602 case 'B': return java_byte_type
;
603 case 'S': return java_short_type
;
604 case 'I': return java_int_type
;
605 case 'J': return java_long_type
;
606 case 'Z': return java_boolean_type
;
607 case 'C': return java_char_type
;
608 case 'F': return java_float_type
;
609 case 'D': return java_double_type
;
610 case 'V': return java_void_type
;
612 error ("unknown signature '%c' for primitive type", (char) signature
);
615 /* Return the demangled name of the Java type signature string SIGNATURE,
616 as a freshly allocated copy. */
619 java_demangle_type_signature (signature
)
626 while (*signature
== '[')
631 switch (signature
[0])
634 /* Substract 2 for 'L' and ';', but add 1 for final nul. */
635 result
= xmalloc (strlen (signature
) - 1 + 2 * array
);
638 for ( ; *signature
!= ';' && *signature
!= '\0'; signature
++)
640 if (*signature
== '/')
647 ptr
= TYPE_NAME (java_primitive_type (signature
[0]));
649 result
= xmalloc (i
+ 1 + 2 * array
);
650 strcpy (result
, ptr
);
664 java_lookup_type (signature
)
667 switch (signature
[0])
671 error ("java_lookup_type not fully inmplemented");
673 return java_primitive_type (signature
[0]);
677 /* Return the type of TYPE followed by DIMS pairs of [ ].
678 If DIMS == 0, TYPE is returned. */
681 java_array_type (type
, dims
)
685 struct type
*range_type
;
689 range_type
= create_range_type (NULL
, builtin_type_int
, 0, 0);
691 type
= create_array_type (NULL
, type
, range_type
);
697 /* Create a Java string in the inferior from a (Utf8) literal. */
700 java_value_string (ptr
, len
)
704 error ("not implemented - java_value_string"); /* FIXME */
707 static void java_printchar
PARAMS ((int c
, GDB_FILE
*stream
));
710 java_printchar (c
, stream
)
714 fputc_filtered ('\'', stream
);
720 fprintf_filtered (stream
, "\\%c", c
);
723 fputs_filtered ("\\b", stream
);
726 fputs_filtered ("\\t", stream
);
729 fputs_filtered ("\\n", stream
);
732 fputs_filtered ("\\f", stream
);
735 fputs_filtered ("\\r", stream
);
739 fputc_filtered (c
, stream
);
741 fprintf_filtered (stream
, "\\u%.4x", (unsigned int) c
);
745 fputc_filtered ('\'', stream
);
749 evaluate_subexp_java (expect_type
, exp
, pos
, noside
)
750 struct type
*expect_type
;
751 register struct expression
*exp
;
758 enum exp_opcode op
= exp
->elts
[*pos
].opcode
;
759 value_ptr arg1
, arg2
;
764 if (noside
== EVAL_SKIP
)
767 arg1
= evaluate_subexp_standard (expect_type
, exp
, pos
, EVAL_NORMAL
);
768 if (is_object_type (VALUE_TYPE (arg1
)))
770 struct type
*type
= type_from_class (java_class_from_object (arg1
));
771 arg1
= value_cast (lookup_pointer_type (type
), arg1
);
773 if (noside
== EVAL_SKIP
)
775 return value_ind (arg1
);
777 case BINOP_SUBSCRIPT
:
779 arg1
= evaluate_subexp_with_coercion (exp
, pos
, noside
);
780 arg2
= evaluate_subexp_with_coercion (exp
, pos
, noside
);
781 if (noside
== EVAL_SKIP
)
783 /* If the user attempts to subscript something that is not an
784 array or pointer type (like a plain int variable for example),
785 then report this as an error. */
788 type
= check_typedef (VALUE_TYPE (arg1
));
789 name
= TYPE_NAME (type
);
790 if (TYPE_CODE (type
) == TYPE_CODE_PTR
)
792 type
= check_typedef (TYPE_TARGET_TYPE (type
));
793 if (TYPE_CODE (type
) == TYPE_CODE_STRUCT
794 && TYPE_TAG_NAME (type
) != NULL
795 && TYPE_TAG_NAME (type
)[0] == '[')
799 struct type
*el_type
;
802 value_ptr clas
= java_class_from_object(arg1
);
803 value_ptr temp
= clas
;
804 /* Get CLASS_ELEMENT_TYPE of the array type. */
805 temp
= value_struct_elt (&temp
, NULL
, "methods",
807 VALUE_TYPE (temp
) = VALUE_TYPE (clas
);
808 el_type
= type_from_class (temp
);
809 if (TYPE_CODE (el_type
) == TYPE_CODE_STRUCT
)
810 el_type
= lookup_pointer_type (el_type
);
812 if (noside
== EVAL_AVOID_SIDE_EFFECTS
)
813 return value_zero (el_type
, VALUE_LVAL (arg1
));
814 address
= value_as_pointer (arg1
);
815 address
+= JAVA_OBJECT_SIZE
;
816 read_memory (address
, buf4
, 4);
817 length
= (long) extract_signed_integer (buf4
, 4);
818 index
= (long) value_as_long (arg2
);
819 if (index
>= length
|| index
< 0)
820 error ("array index (%ld) out of bounds (length: %ld)",
822 address
= (address
+ 4) + index
* TYPE_LENGTH (el_type
);
823 return value_at (el_type
, address
, NULL
);
826 else if (TYPE_CODE (type
) == TYPE_CODE_ARRAY
)
828 if (noside
== EVAL_AVOID_SIDE_EFFECTS
)
829 return value_zero (TYPE_TARGET_TYPE (type
), VALUE_LVAL (arg1
));
831 return value_subscript (arg1
, arg2
);
834 name
== TYPE_TAG_NAME (type
);
836 error ("cannot subscript something of type `%s'", name
);
838 error ("cannot subscript requested type");
842 i
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
843 (*pos
) += 3 + BYTES_TO_EXP_ELEM (i
+ 1);
844 if (noside
== EVAL_SKIP
)
846 return java_value_string (&exp
->elts
[pc
+ 2].string
, i
);
848 case STRUCTOP_STRUCT
:
849 arg1
= evaluate_subexp_standard (expect_type
, exp
, pos
, noside
);
850 /* Convert object field (such as TYPE.class) to reference. */
851 if (TYPE_CODE (VALUE_TYPE (arg1
)) == TYPE_CODE_STRUCT
)
852 arg1
= value_addr (arg1
);
858 return evaluate_subexp_standard (expect_type
, exp
, pos
, noside
);
860 return value_from_longest (builtin_type_long
, (LONGEST
) 1);
864 java_create_fundamental_type (objfile
, typeid)
865 struct objfile
*objfile
;
870 case FT_VOID
: return java_void_type
;
871 case FT_BOOLEAN
: return java_boolean_type
;
872 case FT_CHAR
: return java_char_type
;
873 case FT_FLOAT
: return java_float_type
;
874 case FT_DBL_PREC_FLOAT
: return java_double_type
;
875 case FT_BYTE
: case FT_SIGNED_CHAR
: return java_byte_type
;
876 case FT_SHORT
: case FT_SIGNED_SHORT
: return java_short_type
;
877 case FT_INTEGER
: case FT_SIGNED_INTEGER
: return java_int_type
;
878 case FT_LONG
: case FT_SIGNED_LONG
: return java_long_type
;
880 return c_create_fundamental_type (objfile
, typeid);
883 /* Table mapping opcodes into strings for printing operators
884 and precedences of the operators. */
886 const struct op_print java_op_print_tab
[] =
888 {",", BINOP_COMMA
, PREC_COMMA
, 0},
889 {"=", BINOP_ASSIGN
, PREC_ASSIGN
, 1},
890 {"||", BINOP_LOGICAL_OR
, PREC_LOGICAL_OR
, 0},
891 {"&&", BINOP_LOGICAL_AND
, PREC_LOGICAL_AND
, 0},
892 {"|", BINOP_BITWISE_IOR
, PREC_BITWISE_IOR
, 0},
893 {"^", BINOP_BITWISE_XOR
, PREC_BITWISE_XOR
, 0},
894 {"&", BINOP_BITWISE_AND
, PREC_BITWISE_AND
, 0},
895 {"==", BINOP_EQUAL
, PREC_EQUAL
, 0},
896 {"!=", BINOP_NOTEQUAL
, PREC_EQUAL
, 0},
897 {"<=", BINOP_LEQ
, PREC_ORDER
, 0},
898 {">=", BINOP_GEQ
, PREC_ORDER
, 0},
899 {">", BINOP_GTR
, PREC_ORDER
, 0},
900 {"<", BINOP_LESS
, PREC_ORDER
, 0},
901 {">>", BINOP_RSH
, PREC_SHIFT
, 0},
902 {"<<", BINOP_LSH
, PREC_SHIFT
, 0},
904 {">>>", BINOP_
???, PREC_SHIFT
, 0},
906 {"+", BINOP_ADD
, PREC_ADD
, 0},
907 {"-", BINOP_SUB
, PREC_ADD
, 0},
908 {"*", BINOP_MUL
, PREC_MUL
, 0},
909 {"/", BINOP_DIV
, PREC_MUL
, 0},
910 {"%", BINOP_REM
, PREC_MUL
, 0},
911 {"-", UNOP_NEG
, PREC_PREFIX
, 0},
912 {"!", UNOP_LOGICAL_NOT
, PREC_PREFIX
, 0},
913 {"~", UNOP_COMPLEMENT
, PREC_PREFIX
, 0},
914 {"*", UNOP_IND
, PREC_PREFIX
, 0},
916 {"instanceof", ???, ???, 0},
918 {"++", UNOP_PREINCREMENT
, PREC_PREFIX
, 0},
919 {"--", UNOP_PREDECREMENT
, PREC_PREFIX
, 0},
923 const struct language_defn java_language_defn
= {
924 "java", /* Language name */
931 evaluate_subexp_java
,
932 java_printchar
, /* Print a character constant */
933 c_printstr
, /* Function to print string constant */
934 java_create_fundamental_type
, /* Create fundamental type in this language */
935 java_print_type
, /* Print a type using appropriate syntax */
936 java_val_print
, /* Print a value using appropriate syntax */
937 java_value_print
, /* Print a top-level value */
938 {"", "", "", ""}, /* Binary format info */
939 {"0%lo", "0", "o", ""}, /* Octal format info */
940 {"%ld", "", "d", ""}, /* Decimal format info */
941 {"0x%lx", "0x", "x", ""}, /* Hex format info */
942 java_op_print_tab
, /* expression operators for printing */
943 0, /* not c-style arrays */
944 0, /* String lower bound */
945 &builtin_type_char
, /* Type of string elements */
950 _initialize_java_language ()
953 java_int_type
= init_type (TYPE_CODE_INT
, 4, 0, "int", NULL
);
954 java_short_type
= init_type (TYPE_CODE_INT
, 2, 0, "short", NULL
);
955 java_long_type
= init_type (TYPE_CODE_INT
, 8, 0, "long", NULL
);
956 java_byte_type
= init_type (TYPE_CODE_INT
, 1, 0, "byte", NULL
);
957 java_boolean_type
= init_type (TYPE_CODE_BOOL
, 1, 0, "boolean", NULL
);
958 java_char_type
= init_type (TYPE_CODE_CHAR
, 2, 0, "char", NULL
);
959 java_float_type
= init_type (TYPE_CODE_FLT
, 4, 0, "float", NULL
);
960 java_double_type
= init_type (TYPE_CODE_FLT
, 8, 0, "double", NULL
);
961 java_void_type
= init_type (TYPE_CODE_VOID
, 1, 0, "void", NULL
);
963 add_language (&java_language_defn
);
966 /* Cleanup code that should be run on every "run".
967 We should use make_run_cleanup to have this be called.
968 But will that mess up values in value histry? FIXME */
970 void java_rerun_cleanup ()
972 if (class_symtab
!= NULL
)
974 free_symtab (class_symtab
); /* ??? */
977 if (dynamics_objfile
!= NULL
)
979 free_objfile (dynamics_objfile
);
980 dynamics_objfile
= NULL
;
983 java_object_type
= NULL
;