1 /* src/vm/global.h - global definitions
3 Copyright (C) 1996-2005, 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 Contact: cacao@cacaojvm.org
27 Authors: Reinhard Grafl
36 $Id: global.h 5658 2006-10-04 10:10:01Z twisti $
48 /* additional data types ******************************************************/
50 typedef void *voidptr; /* generic pointer */
51 typedef void (*functionptr) (void); /* generic function pointer */
52 typedef u1* methodptr;
54 typedef unsigned int bool; /* boolean data type */
60 #if defined(ENABLE_SSA)
61 /* immediate to get an addidional target Local Var Index */
62 /* for IINC in Combination with SSA */
69 /* immediate data union */
79 #if defined(ENABLE_SSA)
85 /* forward typedefs ***********************************************************/
87 typedef struct java_objectheader java_objectheader;
88 typedef struct java_objectarray java_objectarray;
91 #define MAX_ALIGN 8 /* most generic alignment for JavaVM values */
94 /* basic data types ***********************************************************/
96 /* The JavaVM types must numbered in the same order as the ICMD_Ixxx
97 to ICMD_Axxx instructions (LOAD and STORE). All other types can be
98 numbered arbitrarily. */
106 #define TYPE_RET 8 /* must not share bits with TYPE_FLT or TYPE_LNG */
111 #define IS_INT_LNG_TYPE(a) (!((a) & TYPE_FLT))
112 #define IS_FLT_DBL_TYPE(a) ((a) & TYPE_FLT)
113 #define IS_2_WORD_TYPE(a) ((a) & TYPE_LNG)
115 #define IS_INT_TYPE(a) ((a) == TYPE_INT)
116 #define IS_LNG_TYPE(a) ((a) == TYPE_LNG)
117 #define IS_FLT_TYPE(a) ((a) == TYPE_FLT)
118 #define IS_DBL_TYPE(a) ((a) == TYPE_DBL)
119 #define IS_ADR_TYPE(a) ((a) == TYPE_ADR)
121 #define IS_VOID_TYPE(a) ((a) == TYPE_VOID)
124 /* primitive data types *******************************************************/
126 /* These values are used in parsed descriptors and in some other
127 places were the different types handled internally as TYPE_INT have
128 to be distinguished. */
130 #define PRIMITIVETYPE_COUNT 11 /* number of primitive types (+ dummies) */
132 /* CAUTION: Don't change the numerical values! These constants are
133 used as indices into the primitive type table. */
135 #define PRIMITIVETYPE_INT TYPE_INT
136 #define PRIMITIVETYPE_LONG TYPE_LNG
137 #define PRIMITIVETYPE_FLOAT TYPE_FLT
138 #define PRIMITIVETYPE_DOUBLE TYPE_DBL
139 #define PRIMITIVETYPE_DUMMY1 TYPE_ADR /* not used! */
140 #define PRIMITIVETYPE_BYTE 5
141 #define PRIMITIVETYPE_CHAR 6
142 #define PRIMITIVETYPE_SHORT 7
143 #define PRIMITIVETYPE_BOOLEAN 8
144 #define PRIMITIVETYPE_DUMMY2 9 /* not used! */
145 #define PRIMITIVETYPE_VOID TYPE_VOID
147 /* some Java related defines **************************************************/
149 #define JAVA_VERSION "1.4.2" /* this version is supported by CACAO */
150 #define CLASS_VERSION "49.0"
153 /* Java class file constants **************************************************/
155 #define MAGIC 0xCAFEBABE
156 #define MAJOR_VERSION 49
157 #define MINOR_VERSION 0
160 /* Constant pool tags *********************************************************/
162 #define CONSTANT_Class 7
163 #define CONSTANT_Fieldref 9
164 #define CONSTANT_Methodref 10
165 #define CONSTANT_InterfaceMethodref 11
166 #define CONSTANT_String 8
167 #define CONSTANT_Integer 3
168 #define CONSTANT_Float 4
169 #define CONSTANT_Long 5
170 #define CONSTANT_Double 6
171 #define CONSTANT_NameAndType 12
172 #define CONSTANT_Utf8 1
174 #define CONSTANT_UNUSED 0
177 /* Class/Field/Method access and property flags *******************************/
179 #define ACC_UNDEF -1 /* used internally */
180 #define ACC_NONE 0 /* used internally */
182 #define ACC_PUBLIC 0x0001
183 #define ACC_PRIVATE 0x0002
184 #define ACC_PROTECTED 0x0004
185 #define ACC_STATIC 0x0008
186 #define ACC_FINAL 0x0010
187 #define ACC_SUPER 0x0020
188 #define ACC_SYNCHRONIZED 0x0020
189 #define ACC_VOLATILE 0x0040
190 #define ACC_BRIDGE 0x0040
191 #define ACC_TRANSIENT 0x0080
192 #define ACC_VARARGS 0x0080
193 #define ACC_NATIVE 0x0100
194 #define ACC_INTERFACE 0x0200
195 #define ACC_ABSTRACT 0x0400
196 #define ACC_STRICT 0x0800
197 #define ACC_SYNTHETIC 0x1000
198 #define ACC_ANNOTATION 0x2000
199 #define ACC_ENUM 0x4000
200 #define ACC_MIRANDA 0x8000
202 /* special flags used in classinfo ********************************************/
204 #define ACC_CLASS_REFLECT_MASK 0x0000ffff /* flags reported by reflection */
205 #define ACC_CLASS_HAS_POINTERS 0x00010000 /* instance contains pointers */
208 /* data structures of the runtime system **************************************/
210 /* java_objectheader ***********************************************************
212 All objects (and arrays) which resides on the heap need the
213 following header at the beginning of the data structure.
215 *******************************************************************************/
217 struct java_objectheader { /* header for all objects */
218 struct _vftbl *vftbl; /* pointer to virtual function table */
219 #if defined(ENABLE_THREADS)
220 struct lock_record_t *monitorPtr;
221 ptrint flcword; /* word containing the FLC bit */
226 /* arrays **********************************************************************
228 All arrays are objects (they need the object header with a pointer
229 to a vftbl (array class table). There is one class for each array
230 type. The array type is described by an arraydescriptor struct
231 which is referenced by the vftbl.
234 /* CAUTION: Don't change the numerical values! These constants (with
235 * the exception of ARRAYTYPE_OBJECT) are used as indices in the
236 * primitive type table.
238 #define ARRAYTYPE_INT PRIMITIVETYPE_INT
239 #define ARRAYTYPE_LONG PRIMITIVETYPE_LONG
240 #define ARRAYTYPE_FLOAT PRIMITIVETYPE_FLOAT
241 #define ARRAYTYPE_DOUBLE PRIMITIVETYPE_DOUBLE
242 #define ARRAYTYPE_BYTE PRIMITIVETYPE_BYTE
243 #define ARRAYTYPE_CHAR PRIMITIVETYPE_CHAR
244 #define ARRAYTYPE_SHORT PRIMITIVETYPE_SHORT
245 #define ARRAYTYPE_BOOLEAN PRIMITIVETYPE_BOOLEAN
246 #define ARRAYTYPE_OBJECT PRIMITIVETYPE_VOID /* don't use as index! */
248 typedef struct java_arrayheader { /* header for all arrays */
249 java_objectheader objheader; /* object header */
250 s4 size; /* array size */
255 /* structs for all kinds of arrays ********************************************/
257 /* booleanarray and bytearray need identical memory layout (access methods
258 use the same machine code */
260 typedef struct java_booleanarray {
261 java_arrayheader header;
265 typedef struct java_bytearray {
266 java_arrayheader header;
270 typedef struct java_chararray {
271 java_arrayheader header;
275 typedef struct java_shortarray {
276 java_arrayheader header;
280 typedef struct java_intarray {
281 java_arrayheader header;
285 typedef struct java_longarray {
286 java_arrayheader header;
290 typedef struct java_floatarray {
291 java_arrayheader header;
295 typedef struct java_doublearray {
296 java_arrayheader header;
300 /* objectarray and arrayarray need identical memory layout (access methods
301 use the same machine code */
303 struct java_objectarray {
304 java_arrayheader header;
305 java_objectheader *data[1];
309 /* Synchronization ************************************************************/
311 #if defined(ENABLE_THREADS)
312 void compiler_lock();
313 void compiler_unlock();
317 /* global constants related to the verifier ***********************************/
319 /* The verifier needs additional variables in the variable array. Since these */
320 /* must be reserved and set by parse.c and stack.c, we define these numbers */
321 /* here to avoid mysterious hard-coded constants. */
323 #if defined(ENABLE_VERIFIER)
324 # define VERIFIER_EXTRA_LOCALS 1
325 # define VERIFIER_EXTRA_VARS 1
327 # define VERIFIER_EXTRA_LOCALS 0
328 # define VERIFIER_EXTRA_VARS 0
331 #endif /* _GLOBAL_H */
335 * These are local overrides for various environment variables in Emacs.
336 * Please do not remove this and leave it at the end of the file, where
337 * Emacs will automagically detect them.
338 * ---------------------------------------------------------------------
341 * indent-tabs-mode: t
345 * vim:noexpandtab:sw=4:ts=4: