/* src/vm/global.h - global definitions
- Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
+ Copyright (C) 1996-2005, 2007, 2006 R. Grafl, A. Krall, C. Kruegel,
C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
J. Wenninger, Institut f. Computersprachen - TU Wien
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- Contact: cacao@cacaojvm.org
-
- Authors: Reinhard Grafl
- Andreas Krall
- Mark Probst
- Philipp Tomsich
- Edwin Steiner
- Joseph Wenninger
- Christian Thalinger
-
- $Id: global.h 7387 2007-02-21 23:26:24Z twisti $
-
*/
} imm_union;
+/* alignment macros ***********************************************************/
+
+#define ALIGN_EVEN(a) ((a) = (((a) + 1) & ~1))
+#define ALIGN_ODD(a) ((a) = (a) | 1 )
+
+#define ALIGN_2(a) ALIGN_EVEN(a)
+
+
/* forward typedefs ***********************************************************/
-typedef struct java_objectheader java_objectheader;
-typedef struct java_objectarray java_objectarray;
+typedef struct java_object_t java_object_t;
+typedef struct java_objectarray_t java_objectarray_t;
#define MAX_ALIGN 8 /* most generic alignment for JavaVM values */
#define IS_VOID_TYPE(a) ((a) == TYPE_VOID)
-/* primitive data types *******************************************************/
-
-/* These values are used in parsed descriptors and in some other
- places were the different types handled internally as TYPE_INT have
- to be distinguished. */
-
-#define PRIMITIVETYPE_COUNT 11 /* number of primitive types (+ dummies) */
-
-/* CAUTION: Don't change the numerical values! These constants are
- used as indices into the primitive type table. */
-
-#define PRIMITIVETYPE_INT TYPE_INT
-#define PRIMITIVETYPE_LONG TYPE_LNG
-#define PRIMITIVETYPE_FLOAT TYPE_FLT
-#define PRIMITIVETYPE_DOUBLE TYPE_DBL
-#define PRIMITIVETYPE_DUMMY1 TYPE_ADR /* not used! */
-#define PRIMITIVETYPE_BYTE 5
-#define PRIMITIVETYPE_CHAR 6
-#define PRIMITIVETYPE_SHORT 7
-#define PRIMITIVETYPE_BOOLEAN 8
-#define PRIMITIVETYPE_DUMMY2 9 /* not used! */
-#define PRIMITIVETYPE_VOID TYPE_VOID
-
/* some Java related defines **************************************************/
#define JAVA_VERSION "1.5.0" /* this version is supported by CACAO */
#define ACC_CLASS_REFLECT_MASK 0x0000ffff/* flags reported by reflection */
-#define ACC_CLASS_HAS_POINTERS 0x00010000/* instance contains pointers */
-#define ACC_CLASS_SOFT_REFERENCE 0x00020000
-#define ACC_CLASS_WEAK_REFERENCE 0x00040000
-#define ACC_CLASS_PHANTOM_REFERENCE 0x00080000
+#define ACC_CLASS_PRIMITIVE 0x00010000
+#define ACC_CLASS_MEMBER 0x00020000
+#define ACC_CLASS_ANONYMOUS 0x00040000
+
+#define ACC_CLASS_HAS_POINTERS 0x00080000/* instance contains pointers */
+
+#define ACC_CLASS_REFERENCE_MASK 0x00700000
+#define ACC_CLASS_REFERENCE_SOFT 0x00100000
+#define ACC_CLASS_REFERENCE_WEAK 0x00200000
+#define ACC_CLASS_REFERENCE_PHANTOM 0x00400000
/* special flags used in methodinfo *******************************************/
-#define ACC_METHOD_IMPLEMENTED 0x00010000 /* there is an implementation */
-#define ACC_METHOD_MONOMORPHIC 0x00020000 /* currently monomorphic method */
+#define ACC_METHOD_BUILTIN 0x00010000 /* use for descriptor parsing */
+#define ACC_METHOD_IMPLEMENTED 0x00020000 /* there is an implementation */
+#define ACC_METHOD_MONOMORPHIC 0x00040000 /* currently monomorphic method */
/* data structures of the runtime system **************************************/
-/* java_objectheader ***********************************************************
+/* java_object_t ***************************************************************
All objects (and arrays) which resides on the heap need the
following header at the beginning of the data structure.
#define HDRFLAG_FLC 0x01
-struct java_objectheader { /* header for all objects */
+struct java_object_t { /* header for all objects */
struct _vftbl *vftbl; /* pointer to virtual function table */
#if defined(ENABLE_THREADS)
struct lock_record_t *monitorPtr;
which is referenced by the vftbl.
*/
-/* CAUTION: Don't change the numerical values! These constants (with
- * the exception of ARRAYTYPE_OBJECT) are used as indices in the
- * primitive type table.
- */
-#define ARRAYTYPE_INT PRIMITIVETYPE_INT
-#define ARRAYTYPE_LONG PRIMITIVETYPE_LONG
-#define ARRAYTYPE_FLOAT PRIMITIVETYPE_FLOAT
-#define ARRAYTYPE_DOUBLE PRIMITIVETYPE_DOUBLE
-#define ARRAYTYPE_BYTE PRIMITIVETYPE_BYTE
-#define ARRAYTYPE_CHAR PRIMITIVETYPE_CHAR
-#define ARRAYTYPE_SHORT PRIMITIVETYPE_SHORT
-#define ARRAYTYPE_BOOLEAN PRIMITIVETYPE_BOOLEAN
-#define ARRAYTYPE_OBJECT PRIMITIVETYPE_VOID /* don't use as index! */
-
-typedef struct java_arrayheader { /* header for all arrays */
- java_objectheader objheader; /* object header */
+typedef struct java_array_t { /* header for all arrays */
+ java_object_t objheader; /* object header */
s4 size; /* array size */
-} java_arrayheader;
+} java_array_t;
/* booleanarray and bytearray need identical memory layout (access methods
use the same machine code */
-typedef struct java_booleanarray {
- java_arrayheader header;
+typedef struct java_booleanarray_t {
+ java_array_t header;
u1 data[1];
-} java_booleanarray;
+} java_booleanarray_t;
-typedef struct java_bytearray {
- java_arrayheader header;
+typedef struct java_bytearray_t {
+ java_array_t header;
s1 data[1];
-} java_bytearray;
+} java_bytearray_t;
-typedef struct java_chararray {
- java_arrayheader header;
+typedef struct java_chararray_t {
+ java_array_t header;
u2 data[1];
-} java_chararray;
+} java_chararray_t;
-typedef struct java_shortarray {
- java_arrayheader header;
+typedef struct java_shortarray_t {
+ java_array_t header;
s2 data[1];
-} java_shortarray;
+} java_shortarray_t;
-typedef struct java_intarray {
- java_arrayheader header;
+typedef struct java_intarray_t {
+ java_array_t header;
s4 data[1];
-} java_intarray;
+} java_intarray_t;
-typedef struct java_longarray {
- java_arrayheader header;
+typedef struct java_longarray_t {
+ java_array_t header;
s8 data[1];
-} java_longarray;
+} java_longarray_t;
-typedef struct java_floatarray {
- java_arrayheader header;
+typedef struct java_floatarray_t {
+ java_array_t header;
float data[1];
-} java_floatarray;
+} java_floatarray_t;
-typedef struct java_doublearray {
- java_arrayheader header;
+typedef struct java_doublearray_t {
+ java_array_t header;
double data[1];
-} java_doublearray;
+} java_doublearray_t;
/* objectarray and arrayarray need identical memory layout (access methods
use the same machine code */
-struct java_objectarray {
- java_arrayheader header;
- java_objectheader *data[1];
+struct java_objectarray_t {
+ java_array_t header;
+ java_object_t *data[1];
};
-/* Synchronization ************************************************************/
+/* java_handle_t ***************************************************************
-#if defined(ENABLE_THREADS)
-void compiler_lock();
-void compiler_unlock();
+ TODO: document me!
+
+*******************************************************************************/
+
+#if 0
+typedef struct java_handle_t {
+ java_object_t *heap_object;
+} java_handle_t;
+#elseif 0
+typedef union {
+ java_object_t object;
+ java_array_t array;
+} java_handle_t;
+#else
+typedef java_object_t java_handle_t;
+typedef java_objectarray_t java_handle_objectarray_t;
+typedef java_booleanarray_t java_handle_booleanarray_t;
+typedef java_bytearray_t java_handle_bytearray_t;
+typedef java_chararray_t java_handle_chararray_t;
+typedef java_shortarray_t java_handle_shortarray_t;
+typedef java_intarray_t java_handle_intarray_t;
+typedef java_longarray_t java_handle_longarray_t;
+typedef java_floatarray_t java_handle_floatarray_t;
+typedef java_doublearray_t java_handle_doublearray_t;
#endif
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