/* 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
-
- Changes: Mark Probst
- Philipp Tomsich
- Edwin Steiner
- Joseph Wenninger
- Christian Thalinger
-
- $Id: global.h 4937 2006-05-18 14:33:32Z edwin $
-
*/
#define _GLOBAL_H
#include "config.h"
+
+#include <stdint.h>
+
#include "vm/types.h"
typedef void (*functionptr) (void); /* generic function pointer */
typedef u1* methodptr;
-typedef int bool; /* boolean data type */
+typedef unsigned int bool; /* boolean data type */
-#define true 1
-#define false 0
+#define true 1
+#define false 0
+#if defined(ENABLE_SSA)
+/* immediate to get an addidional target Local Var Index */
+/* for IINC in Combination with SSA */
+struct imm {
+ s4 i;
+ s4 op1_t;
+};
+#endif
+
/* immediate data union */
typedef union {
void *a;
functionptr fp;
u1 b[8];
+#if defined(ENABLE_SSA)
+ struct imm _i;
+#endif
} imm_union;
-/* forward typedefs ***********************************************************/
+/* alignment macros ***********************************************************/
-typedef struct java_objectheader java_objectheader;
-typedef struct java_objectarray java_objectarray;
+#define ALIGN_EVEN(a) ((a) = (((a) + 1) & ~1))
+#define ALIGN_ODD(a) ((a) = (a) | 1 )
+#define ALIGN_2(a) ALIGN_EVEN(a)
-/* define some CACAO paths ****************************************************/
-#if defined(ENABLE_ZLIB)
-# define CACAO_VM_ZIP_PATH CACAO_PREFIX "/share/cacao/" VM_ZIP_STRING
-#else
-# define CACAO_VM_ZIP_PATH CACAO_PREFIX "/share/cacao/"
-#endif
+/* forward typedefs ***********************************************************/
-#define CLASSPATH_GLIBJ_ZIP_PATH CLASSPATH_PREFIX "/share/classpath/" GLIBJ_ZIP_STRING
-#define CLASSPATH_LIBRARY_PATH CLASSPATH_LIBDIR "/classpath"
+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 */
/* basic data types ***********************************************************/
-/* CAUTION: jit/jit.h relies on these numerical values! */
-#define TYPE_INT 0 /* the JavaVM types must numbered in the */
-#define TYPE_LONG 1 /* same order as the ICMD_Ixxx to ICMD_Axxx */
-#define TYPE_FLOAT 2 /* instructions (LOAD and STORE) */
-#define TYPE_DOUBLE 3 /* integer, long, float, double, address */
-#define TYPE_ADDRESS 4 /* all other types can be numbered arbitrarly */
+/* The JavaVM types must numbered in the same order as the ICMD_Ixxx
+ to ICMD_Axxx instructions (LOAD and STORE). All other types can be
+ numbered arbitrarily. */
+
+#define TYPE_INT 0
+#define TYPE_LNG 1
+#define TYPE_FLT 2
+#define TYPE_DBL 3
+#define TYPE_ADR 4
+
+#define TYPE_RET 8 /* must not share bits with TYPE_FLT or TYPE_LNG */
#define TYPE_VOID 10
-/* 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 IS_INT_LNG_TYPE(a) (!((a) & TYPE_FLT))
+#define IS_FLT_DBL_TYPE(a) ((a) & TYPE_FLT)
+#define IS_2_WORD_TYPE(a) ((a) & TYPE_LNG)
-#define PRIMITIVETYPE_COUNT 11 /* number of primitive types (+ dummies) */
+#define IS_INT_TYPE(a) ((a) == TYPE_INT)
+#define IS_LNG_TYPE(a) ((a) == TYPE_LNG)
+#define IS_FLT_TYPE(a) ((a) == TYPE_FLT)
+#define IS_DBL_TYPE(a) ((a) == TYPE_DBL)
+#define IS_ADR_TYPE(a) ((a) == TYPE_ADR)
-/* CAUTION: Don't change the numerical values! These constants are
- used as indices into the primitive type table. */
+#define IS_VOID_TYPE(a) ((a) == TYPE_VOID)
-#define PRIMITIVETYPE_INT TYPE_INT
-#define PRIMITIVETYPE_LONG TYPE_LONG
-#define PRIMITIVETYPE_FLOAT TYPE_FLOAT
-#define PRIMITIVETYPE_DOUBLE TYPE_DOUBLE
-#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 "1.4.2" /* this version is supported by CACAO */
-#define CLASS_VERSION "49.0"
+#define JAVA_VERSION "1.5.0" /* this version is supported by CACAO */
+#define CLASS_VERSION "50.0"
/* Java class file constants **************************************************/
#define MAGIC 0xCAFEBABE
-#define MAJOR_VERSION 49
+#define MAJOR_VERSION 50
#define MINOR_VERSION 0
/* special flags used in classinfo ********************************************/
-#define ACC_CLASS_REFLECT_MASK 0x0000ffff /* flags reported by reflection */
-#define ACC_CLASS_HAS_POINTERS 0x00010000 /* instance contains pointers */
+#define ACC_CLASS_REFLECT_MASK 0x0000ffff/* flags reported by reflection */
+
+#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_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.
+ TODO: Include detailed description from the Wiki (ObjectHeader) here.
+
*******************************************************************************/
-struct java_objectheader { /* header for all objects */
- struct _vftbl *vftbl; /* pointer to virtual function table */
+#define HDRFLAG_FLC 0x01
+#define HDRFLAG_MARK1 0x02
+#define HDRFLAG_MARK2 0x04
+#define HDRFLAG_UNCOLLECTABLE 0x08
+#define HDRFLAG_HASH_TAKEN 0x10
+#define HDRFLAG_HASH_ATTACHED 0x20
+#define HDRFLAG_REFERENCING 0x40
+
+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;
- ptrint flcword; /* word containing the FLC bit */
+ uintptr_t lockword;
+#endif
+#if defined(ENABLE_THREADS) || defined(ENABLE_GC_CACAO)
+ uintptr_t hdrflags; /* word containing the FLC and GC bits */
#endif
};
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 defined(ENABLE_HANDLES)
+typedef struct java_handle_t {
+ java_object_t *heap_object;
+} java_handle_t;
+
+typedef struct java_handle_objectarray_t { java_objectarray_t *heap_object; } java_handle_objectarray_t;
+typedef struct java_handle_booleanarray_t { java_booleanarray_t *heap_object; } java_handle_booleanarray_t;
+typedef struct java_handle_bytearray_t { java_bytearray_t *heap_object; } java_handle_bytearray_t;
+typedef struct java_handle_chararray_t { java_chararray_t *heap_object; } java_handle_chararray_t;
+typedef struct java_handle_shortarray_t { java_shortarray_t *heap_object; } java_handle_shortarray_t;
+typedef struct java_handle_intarray_t { java_intarray_t *heap_object; } java_handle_intarray_t;
+typedef struct java_handle_longarray_t { java_longarray_t *heap_object; } java_handle_longarray_t;
+typedef struct java_handle_floatarray_t { java_floatarray_t *heap_object; } java_handle_floatarray_t;
+typedef struct java_handle_doublearray_t { java_doublearray_t *heap_object; } java_handle_doublearray_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
+
+
+/* global constants related to the verifier ***********************************/
+
+/* The verifier needs additional variables in the variable array. Since these */
+/* must be reserved and set by parse.c and stack.c, we define these numbers */
+/* here to avoid mysterious hard-coded constants. */
+/* stack.c needs an extra variable if the verifier is disabled. */
+
+#if defined(ENABLE_VERIFIER)
+# define VERIFIER_EXTRA_LOCALS 1
+# define VERIFIER_EXTRA_VARS 1
+# define STACK_EXTRA_VARS 0
+#else
+# define VERIFIER_EXTRA_LOCALS 0
+# define VERIFIER_EXTRA_VARS 0
+# define STACK_EXTRA_VARS 1
#endif
#endif /* _GLOBAL_H */
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