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
35 /* additional data types ******************************************************/
37 typedef void *voidptr; /* generic pointer */
38 typedef void (*functionptr) (void); /* generic function pointer */
39 typedef u1* methodptr;
41 typedef unsigned int bool; /* boolean data type */
47 #if defined(ENABLE_SSA)
48 /* immediate to get an addidional target Local Var Index */
49 /* for IINC in Combination with SSA */
56 /* immediate data union */
66 #if defined(ENABLE_SSA)
72 /* alignment macros ***********************************************************/
74 #define ALIGN_EVEN(a) ((a) = (((a) + 1) & ~1))
75 #define ALIGN_ODD(a) ((a) = (a) | 1 )
77 #define ALIGN_2(a) ALIGN_EVEN(a)
80 /* forward typedefs ***********************************************************/
82 typedef struct java_object_t java_object_t;
83 typedef struct java_objectarray_t java_objectarray_t;
86 #define MAX_ALIGN 8 /* most generic alignment for JavaVM values */
89 /* basic data types ***********************************************************/
91 /* The JavaVM types must numbered in the same order as the ICMD_Ixxx
92 to ICMD_Axxx instructions (LOAD and STORE). All other types can be
93 numbered arbitrarily. */
101 #define TYPE_RET 8 /* must not share bits with TYPE_FLT or TYPE_LNG */
106 #define IS_INT_LNG_TYPE(a) (!((a) & TYPE_FLT))
107 #define IS_FLT_DBL_TYPE(a) ((a) & TYPE_FLT)
108 #define IS_2_WORD_TYPE(a) ((a) & TYPE_LNG)
110 #define IS_INT_TYPE(a) ((a) == TYPE_INT)
111 #define IS_LNG_TYPE(a) ((a) == TYPE_LNG)
112 #define IS_FLT_TYPE(a) ((a) == TYPE_FLT)
113 #define IS_DBL_TYPE(a) ((a) == TYPE_DBL)
114 #define IS_ADR_TYPE(a) ((a) == TYPE_ADR)
116 #define IS_VOID_TYPE(a) ((a) == TYPE_VOID)
119 /* some Java related defines **************************************************/
121 #define JAVA_VERSION "1.5.0" /* this version is supported by CACAO */
122 #define CLASS_VERSION "50.0"
125 /* Java class file constants **************************************************/
127 #define MAGIC 0xCAFEBABE
128 #define MAJOR_VERSION 50
129 #define MINOR_VERSION 0
132 /* Constant pool tags *********************************************************/
134 #define CONSTANT_Class 7
135 #define CONSTANT_Fieldref 9
136 #define CONSTANT_Methodref 10
137 #define CONSTANT_InterfaceMethodref 11
138 #define CONSTANT_String 8
139 #define CONSTANT_Integer 3
140 #define CONSTANT_Float 4
141 #define CONSTANT_Long 5
142 #define CONSTANT_Double 6
143 #define CONSTANT_NameAndType 12
144 #define CONSTANT_Utf8 1
146 #define CONSTANT_UNUSED 0
149 /* Class/Field/Method access and property flags *******************************/
151 #define ACC_UNDEF -1 /* used internally */
152 #define ACC_NONE 0 /* used internally */
154 #define ACC_PUBLIC 0x0001
155 #define ACC_PRIVATE 0x0002
156 #define ACC_PROTECTED 0x0004
157 #define ACC_STATIC 0x0008
158 #define ACC_FINAL 0x0010
159 #define ACC_SUPER 0x0020
160 #define ACC_SYNCHRONIZED 0x0020
161 #define ACC_VOLATILE 0x0040
162 #define ACC_BRIDGE 0x0040
163 #define ACC_TRANSIENT 0x0080
164 #define ACC_VARARGS 0x0080
165 #define ACC_NATIVE 0x0100
166 #define ACC_INTERFACE 0x0200
167 #define ACC_ABSTRACT 0x0400
168 #define ACC_STRICT 0x0800
169 #define ACC_SYNTHETIC 0x1000
170 #define ACC_ANNOTATION 0x2000
171 #define ACC_ENUM 0x4000
172 #define ACC_MIRANDA 0x8000
174 /* special flags used in classinfo ********************************************/
176 #define ACC_CLASS_REFLECT_MASK 0x0000ffff/* flags reported by reflection */
178 #define ACC_CLASS_PRIMITIVE 0x00010000
179 #define ACC_CLASS_MEMBER 0x00020000
180 #define ACC_CLASS_ANONYMOUS 0x00040000
182 #define ACC_CLASS_HAS_POINTERS 0x00080000/* instance contains pointers */
184 #define ACC_CLASS_REFERENCE_MASK 0x00700000
185 #define ACC_CLASS_REFERENCE_SOFT 0x00100000
186 #define ACC_CLASS_REFERENCE_WEAK 0x00200000
187 #define ACC_CLASS_REFERENCE_PHANTOM 0x00400000
190 /* special flags used in methodinfo *******************************************/
192 #define ACC_METHOD_BUILTIN 0x00010000 /* use for descriptor parsing */
193 #define ACC_METHOD_IMPLEMENTED 0x00020000 /* there is an implementation */
194 #define ACC_METHOD_MONOMORPHIC 0x00040000 /* currently monomorphic method */
197 /* data structures of the runtime system **************************************/
199 /* java_object_t ***************************************************************
201 All objects (and arrays) which resides on the heap need the
202 following header at the beginning of the data structure.
204 TODO: Include detailed description from the Wiki (ObjectHeader) here.
206 *******************************************************************************/
208 #define HDRFLAG_FLC 0x01
210 struct java_object_t { /* header for all objects */
211 struct _vftbl *vftbl; /* pointer to virtual function table */
212 #if defined(ENABLE_THREADS)
213 struct lock_record_t *monitorPtr;
215 #if defined(ENABLE_THREADS) || defined(ENABLE_GC_CACAO)
216 ptrint hdrflags; /* word containing the FLC and GC bits */
221 /* arrays **********************************************************************
223 All arrays are objects (they need the object header with a pointer
224 to a vftbl (array class table). There is one class for each array
225 type. The array type is described by an arraydescriptor struct
226 which is referenced by the vftbl.
229 typedef struct java_array_t { /* header for all arrays */
230 java_object_t objheader; /* object header */
231 s4 size; /* array size */
236 /* structs for all kinds of arrays ********************************************/
238 /* booleanarray and bytearray need identical memory layout (access methods
239 use the same machine code */
241 typedef struct java_booleanarray_t {
244 } java_booleanarray_t;
246 typedef struct java_bytearray_t {
251 typedef struct java_chararray_t {
256 typedef struct java_shortarray_t {
261 typedef struct java_intarray_t {
266 typedef struct java_longarray_t {
271 typedef struct java_floatarray_t {
276 typedef struct java_doublearray_t {
279 } java_doublearray_t;
281 /* objectarray and arrayarray need identical memory layout (access methods
282 use the same machine code */
284 struct java_objectarray_t {
286 java_object_t *data[1];
290 /* java_handle_t ***************************************************************
294 *******************************************************************************/
297 typedef struct java_handle_t {
298 java_object_t *heap_object;
302 java_object_t object;
306 typedef java_object_t java_handle_t;
307 typedef java_objectarray_t java_handle_objectarray_t;
308 typedef java_booleanarray_t java_handle_booleanarray_t;
309 typedef java_bytearray_t java_handle_bytearray_t;
310 typedef java_chararray_t java_handle_chararray_t;
311 typedef java_shortarray_t java_handle_shortarray_t;
312 typedef java_intarray_t java_handle_intarray_t;
313 typedef java_longarray_t java_handle_longarray_t;
314 typedef java_floatarray_t java_handle_floatarray_t;
315 typedef java_doublearray_t java_handle_doublearray_t;
319 /* global constants related to the verifier ***********************************/
321 /* The verifier needs additional variables in the variable array. Since these */
322 /* must be reserved and set by parse.c and stack.c, we define these numbers */
323 /* here to avoid mysterious hard-coded constants. */
324 /* stack.c needs an extra variable if the verifier is disabled. */
326 #if defined(ENABLE_VERIFIER)
327 # define VERIFIER_EXTRA_LOCALS 1
328 # define VERIFIER_EXTRA_VARS 1
329 # define STACK_EXTRA_VARS 0
331 # define VERIFIER_EXTRA_LOCALS 0
332 # define VERIFIER_EXTRA_VARS 0
333 # define STACK_EXTRA_VARS 1
336 #endif /* _GLOBAL_H */
340 * These are local overrides for various environment variables in Emacs.
341 * Please do not remove this and leave it at the end of the file, where
342 * Emacs will automagically detect them.
343 * ---------------------------------------------------------------------
346 * indent-tabs-mode: t
350 * vim:noexpandtab:sw=4:ts=4: