1 /* src/vm/global.h - global definitions
3 Copyright (C) 1996-2005, 2007, 2006 R. Grafl, A. Krall, C. Kruegel,
4 C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
5 E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
6 J. Wenninger, Institut f. Computersprachen - TU Wien
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 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, Boston, MA
25 $Id: global.h 8343 2007-08-17 21:39:32Z michi $
37 /* additional data types ******************************************************/
39 typedef void *voidptr; /* generic pointer */
40 typedef void (*functionptr) (void); /* generic function pointer */
41 typedef u1* methodptr;
43 typedef unsigned int bool; /* boolean data type */
49 #if defined(ENABLE_SSA)
50 /* immediate to get an addidional target Local Var Index */
51 /* for IINC in Combination with SSA */
58 /* immediate data union */
68 #if defined(ENABLE_SSA)
74 /* alignment macros ***********************************************************/
76 #define ALIGN_EVEN(a) ((a) = (((a) + 1) & ~1))
77 #define ALIGN_ODD(a) ((a) = (a) | 1 )
79 #define ALIGN_2(a) ALIGN_EVEN(a)
82 /* forward typedefs ***********************************************************/
84 typedef struct java_object_t java_object_t;
85 typedef struct java_objectarray_t java_objectarray_t;
88 #define MAX_ALIGN 8 /* most generic alignment for JavaVM values */
91 /* basic data types ***********************************************************/
93 /* The JavaVM types must numbered in the same order as the ICMD_Ixxx
94 to ICMD_Axxx instructions (LOAD and STORE). All other types can be
95 numbered arbitrarily. */
103 #define TYPE_RET 8 /* must not share bits with TYPE_FLT or TYPE_LNG */
108 #define IS_INT_LNG_TYPE(a) (!((a) & TYPE_FLT))
109 #define IS_FLT_DBL_TYPE(a) ((a) & TYPE_FLT)
110 #define IS_2_WORD_TYPE(a) ((a) & TYPE_LNG)
112 #define IS_INT_TYPE(a) ((a) == TYPE_INT)
113 #define IS_LNG_TYPE(a) ((a) == TYPE_LNG)
114 #define IS_FLT_TYPE(a) ((a) == TYPE_FLT)
115 #define IS_DBL_TYPE(a) ((a) == TYPE_DBL)
116 #define IS_ADR_TYPE(a) ((a) == TYPE_ADR)
118 #define IS_VOID_TYPE(a) ((a) == TYPE_VOID)
121 /* some Java related defines **************************************************/
123 #define JAVA_VERSION "1.5.0" /* this version is supported by CACAO */
124 #define CLASS_VERSION "50.0"
127 /* Java class file constants **************************************************/
129 #define MAGIC 0xCAFEBABE
130 #define MAJOR_VERSION 50
131 #define MINOR_VERSION 0
134 /* Constant pool tags *********************************************************/
136 #define CONSTANT_Class 7
137 #define CONSTANT_Fieldref 9
138 #define CONSTANT_Methodref 10
139 #define CONSTANT_InterfaceMethodref 11
140 #define CONSTANT_String 8
141 #define CONSTANT_Integer 3
142 #define CONSTANT_Float 4
143 #define CONSTANT_Long 5
144 #define CONSTANT_Double 6
145 #define CONSTANT_NameAndType 12
146 #define CONSTANT_Utf8 1
148 #define CONSTANT_UNUSED 0
151 /* Class/Field/Method access and property flags *******************************/
153 #define ACC_UNDEF -1 /* used internally */
154 #define ACC_NONE 0 /* used internally */
156 #define ACC_PUBLIC 0x0001
157 #define ACC_PRIVATE 0x0002
158 #define ACC_PROTECTED 0x0004
159 #define ACC_STATIC 0x0008
160 #define ACC_FINAL 0x0010
161 #define ACC_SUPER 0x0020
162 #define ACC_SYNCHRONIZED 0x0020
163 #define ACC_VOLATILE 0x0040
164 #define ACC_BRIDGE 0x0040
165 #define ACC_TRANSIENT 0x0080
166 #define ACC_VARARGS 0x0080
167 #define ACC_NATIVE 0x0100
168 #define ACC_INTERFACE 0x0200
169 #define ACC_ABSTRACT 0x0400
170 #define ACC_STRICT 0x0800
171 #define ACC_SYNTHETIC 0x1000
172 #define ACC_ANNOTATION 0x2000
173 #define ACC_ENUM 0x4000
174 #define ACC_MIRANDA 0x8000
176 /* special flags used in classinfo ********************************************/
178 #define ACC_CLASS_REFLECT_MASK 0x0000ffff/* flags reported by reflection */
180 #define ACC_CLASS_PRIMITIVE 0x00010000
181 #define ACC_CLASS_MEMBER 0x00020000
182 #define ACC_CLASS_ANONYMOUS 0x00040000
184 #define ACC_CLASS_HAS_POINTERS 0x00080000/* instance contains pointers */
186 #define ACC_CLASS_REFERENCE_MASK 0x00700000
187 #define ACC_CLASS_REFERENCE_SOFT 0x00100000
188 #define ACC_CLASS_REFERENCE_WEAK 0x00200000
189 #define ACC_CLASS_REFERENCE_PHANTOM 0x00400000
192 /* special flags used in methodinfo *******************************************/
194 #define ACC_METHOD_BUILTIN 0x00010000 /* use for descriptor parsing */
195 #define ACC_METHOD_IMPLEMENTED 0x00020000 /* there is an implementation */
196 #define ACC_METHOD_MONOMORPHIC 0x00040000 /* currently monomorphic method */
199 /* data structures of the runtime system **************************************/
201 /* java_object_t ***************************************************************
203 All objects (and arrays) which resides on the heap need the
204 following header at the beginning of the data structure.
206 TODO: Include detailed description from the Wiki (ObjectHeader) here.
208 *******************************************************************************/
210 #define HDRFLAG_FLC 0x01
211 #define HDRFLAG_MARK1 0x02
212 #define HDRFLAG_MARK2 0x04
213 #define HDRFLAG_UNCOLLECTABLE 0x08
214 #define HDRFLAG_HASH_TAKEN 0x10
215 #define HDRFLAG_HASH_ATTACHED 0x20
216 #define HDRFLAG_REFERENCING 0x40
218 struct java_object_t { /* header for all objects */
219 struct _vftbl *vftbl; /* pointer to virtual function table */
220 #if defined(ENABLE_THREADS)
221 struct lock_record_t *monitorPtr;
223 #if defined(ENABLE_THREADS) || defined(ENABLE_GC_CACAO)
224 ptrint hdrflags; /* word containing the FLC and GC bits */
229 /* arrays **********************************************************************
231 All arrays are objects (they need the object header with a pointer
232 to a vftbl (array class table). There is one class for each array
233 type. The array type is described by an arraydescriptor struct
234 which is referenced by the vftbl.
237 typedef struct java_array_t { /* header for all arrays */
238 java_object_t objheader; /* object header */
239 s4 size; /* array size */
244 /* structs for all kinds of arrays ********************************************/
246 /* booleanarray and bytearray need identical memory layout (access methods
247 use the same machine code */
249 typedef struct java_booleanarray_t {
252 } java_booleanarray_t;
254 typedef struct java_bytearray_t {
259 typedef struct java_chararray_t {
264 typedef struct java_shortarray_t {
269 typedef struct java_intarray_t {
274 typedef struct java_longarray_t {
279 typedef struct java_floatarray_t {
284 typedef struct java_doublearray_t {
287 } java_doublearray_t;
289 /* objectarray and arrayarray need identical memory layout (access methods
290 use the same machine code */
292 struct java_objectarray_t {
294 java_object_t *data[1];
298 /* java_handle_t ***************************************************************
302 *******************************************************************************/
304 #if defined(ENABLE_GC_CACAO)
305 typedef struct java_handle_t {
306 java_object_t *heap_object;
309 typedef struct java_handle_objectarray_t { java_objectarray_t *heap_object; } java_handle_objectarray_t;
310 typedef struct java_handle_booleanarray_t { java_booleanarray_t *heap_object; } java_handle_booleanarray_t;
311 typedef struct java_handle_bytearray_t { java_bytearray_t *heap_object; } java_handle_bytearray_t;
312 typedef struct java_handle_chararray_t { java_chararray_t *heap_object; } java_handle_chararray_t;
313 typedef struct java_handle_shortarray_t { java_shortarray_t *heap_object; } java_handle_shortarray_t;
314 typedef struct java_handle_intarray_t { java_intarray_t *heap_object; } java_handle_intarray_t;
315 typedef struct java_handle_longarray_t { java_longarray_t *heap_object; } java_handle_longarray_t;
316 typedef struct java_handle_floatarray_t { java_floatarray_t *heap_object; } java_handle_floatarray_t;
317 typedef struct java_handle_doublearray_t { java_doublearray_t *heap_object; } java_handle_doublearray_t;
319 typedef java_object_t java_handle_t;
320 typedef java_objectarray_t java_handle_objectarray_t;
321 typedef java_booleanarray_t java_handle_booleanarray_t;
322 typedef java_bytearray_t java_handle_bytearray_t;
323 typedef java_chararray_t java_handle_chararray_t;
324 typedef java_shortarray_t java_handle_shortarray_t;
325 typedef java_intarray_t java_handle_intarray_t;
326 typedef java_longarray_t java_handle_longarray_t;
327 typedef java_floatarray_t java_handle_floatarray_t;
328 typedef java_doublearray_t java_handle_doublearray_t;
332 /* global constants related to the verifier ***********************************/
334 /* The verifier needs additional variables in the variable array. Since these */
335 /* must be reserved and set by parse.c and stack.c, we define these numbers */
336 /* here to avoid mysterious hard-coded constants. */
337 /* stack.c needs an extra variable if the verifier is disabled. */
339 #if defined(ENABLE_VERIFIER)
340 # define VERIFIER_EXTRA_LOCALS 1
341 # define VERIFIER_EXTRA_VARS 1
342 # define STACK_EXTRA_VARS 0
344 # define VERIFIER_EXTRA_LOCALS 0
345 # define VERIFIER_EXTRA_VARS 0
346 # define STACK_EXTRA_VARS 1
349 #endif /* _GLOBAL_H */
353 * These are local overrides for various environment variables in Emacs.
354 * Please do not remove this and leave it at the end of the file, where
355 * Emacs will automagically detect them.
356 * ---------------------------------------------------------------------
359 * indent-tabs-mode: t
363 * vim:noexpandtab:sw=4:ts=4: