1 /* global.h - global definitions
3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
4 R. Grafl, A. Krall, C. Kruegel, C. Oates, R. Obermaisser,
5 M. Probst, S. Ring, E. Steiner, C. Thalinger, D. Thuernbeck,
6 P. Tomsich, J. Wenninger
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., 59 Temple Place - Suite 330, Boston, MA
25 Contact: cacao@complang.tuwien.ac.at
27 Authors: Reinhard Grafl
34 $Id: global.h 930 2004-03-02 21:18:23Z jowenn $
46 #include "toolbox/list.h"
48 #if defined(USE_THREADS) && defined(NATIVE_THREADS)
52 #define STATISTICS /* if enabled collects program statistics */
55 * SIZE_FROM_CLASSINFO toggles between the bitmap_based and the new method
56 * of determining the sizes of objects on the heap.
58 #define SIZE_FROM_CLASSINFO
61 * CACAO_TYPECHECK activates typechecking (part of bytecode verification)
63 #define CACAO_TYPECHECK
66 * TYPECHECK_STACK_COMPCAT activates full checking of computational
67 * categories for stack manipulations (POP,POP2,SWAP,DUP,DUP2,DUP_X1,
68 * DUP2_X1,DUP_X2,DUP2_X2).
70 /* #define TYPECHECK_STACK_COMPCAT */
73 * Macros for configuration of the typechecking code
75 * TYPECHECK_STATISTICS activates gathering statistical information.
76 * TYPEINFO_DEBUG activates debug checks and debug helpers in typeinfo.c
77 * TYPECHECK_DEBUG activates debug checks in typecheck.c
78 * TYPEINFO_DEBUG_TEST activates the typeinfo test at startup.
79 * TYPECHECK_VERBOSE_IMPORTANT activates important debug messages
80 * TYPECHECK_VERBOSE activates all debug messages
82 #ifdef CACAO_TYPECHECK
83 /*#define TYPECHECK_STATISTICS*/
84 /*#define TYPEINFO_DEBUG*/
85 /*#define TYPECHECK_DEBUG*/
86 /*#define TYPEINFO_DEBUG_TEST*/
87 /*#define TYPECHECK_VERBOSE*/
88 /*#define TYPECHECK_VERBOSE_IMPORTANT*/
89 #if defined(TYPECHECK_VERBOSE) || defined(TYPECHECK_VERBOSE_IMPORTANT)
90 #define TYPECHECK_VERBOSE_OPT
95 /* additional data types ******************************************************/
97 typedef void *voidptr; /* generic pointer */
99 typedef int bool; /* boolean data type */
105 /* immediate data union */
117 #define PRIMITIVETYPE_COUNT 9 /* number of primitive types */
119 /* CAUTION: Don't change the numerical values! These constants are
120 * used as indices into the primitive type table.
122 #define PRIMITIVETYPE_INT 0
123 #define PRIMITIVETYPE_LONG 1
124 #define PRIMITIVETYPE_FLOAT 2
125 #define PRIMITIVETYPE_DOUBLE 3
126 #define PRIMITIVETYPE_BYTE 4
127 #define PRIMITIVETYPE_CHAR 5
128 #define PRIMITIVETYPE_SHORT 6
129 #define PRIMITIVETYPE_BOOLEAN 7
130 #define PRIMITIVETYPE_VOID 8
132 typedef void (*functionptr) (); /* generic function pointer */
135 #define MAX_ALIGN 8 /* most generic alignment for JavaVM values */
137 /* shutdown function **********************************************************/
139 void cacao_shutdown(s4 status);
142 /* basic data types ***********************************************************/
144 /* CAUTION: jit/jit.h relies on these numerical values! */
145 #define TYPE_INT 0 /* the JavaVM types must numbered in the */
146 #define TYPE_LONG 1 /* same order as the ICMD_Ixxx to ICMD_Axxx */
147 #define TYPE_FLOAT 2 /* instructions (LOAD and STORE) */
148 #define TYPE_DOUBLE 3 /* integer, long, float, double, address */
149 #define TYPE_ADDRESS 4 /* all other types can be numbered arbitrarly */
154 /* Java class file constants **************************************************/
156 #define MAGIC 0xcafebabe
157 #define MINOR_VERSION 3
158 #define MAJOR_VERSION 45
160 #define CONSTANT_Class 7
161 #define CONSTANT_Fieldref 9
162 #define CONSTANT_Methodref 10
163 #define CONSTANT_InterfaceMethodref 11
164 #define CONSTANT_String 8
165 #define CONSTANT_Integer 3
166 #define CONSTANT_Float 4
167 #define CONSTANT_Long 5
168 #define CONSTANT_Double 6
169 #define CONSTANT_NameAndType 12
170 #define CONSTANT_Utf8 1
172 #define CONSTANT_UNUSED 0
174 #define ACC_PUBLIC 0x0001
175 #define ACC_PRIVATE 0x0002
176 #define ACC_PROTECTED 0x0004
177 #define ACC_STATIC 0x0008
178 #define ACC_FINAL 0x0010
179 #define ACC_SUPER 0x0020
180 #define ACC_SYNCHRONIZED 0x0020
181 #define ACC_VOLATILE 0x0040
182 #define ACC_TRANSIENT 0x0080
183 #define ACC_NATIVE 0x0100
184 #define ACC_INTERFACE 0x0200
185 #define ACC_ABSTRACT 0x0400
186 #define ACC_STRICT 0x0800
188 /* resolve typedef cycles *****************************************************/
190 typedef struct utf utf;
191 typedef struct literalstring literalstring;
192 typedef struct java_objectheader java_objectheader;
193 typedef struct classinfo classinfo;
194 typedef struct vftbl vftbl;
195 typedef u1* methodptr;
196 typedef struct fieldinfo fieldinfo;
197 typedef struct methodinfo methodinfo;
198 typedef struct arraydescriptor arraydescriptor;
201 /* constant pool entries *******************************************************
203 All constant pool entries need a data structure which contain the entrys
204 value. In some cases this structure exist already, in the remaining cases
205 this structure must be generated:
207 kind structure generated?
208 ----------------------------------------------------------------------
209 CONSTANT_Class classinfo no
210 CONSTANT_Fieldref constant_FMIref yes
211 CONSTANT_Methodref constant_FMIref yes
212 CONSTANT_InterfaceMethodref constant_FMIref yes
213 CONSTANT_String unicode no
214 CONSTANT_Integer constant_integer yes
215 CONSTANT_Float constant_float yes
216 CONSTANT_Long constant_long yes
217 CONSTANT_Double constant_double yes
218 CONSTANT_NameAndType constant_nameandtype yes
219 CONSTANT_Utf8 unicode no
222 *******************************************************************************/
224 /* data structures for hashtables ********************************************
227 All utf-symbols, javastrings and classes are stored in global hashtables,
228 so every symbol exists only once. Equal symbols have identical pointers.
229 The functions for adding hashtable elements search the table for the
230 element with the specified name/text and return it on success. Otherwise a
231 new hashtable element is created.
233 The hashtables use external linking for handling collisions. The hashtable
234 structure contains a pointer <ptr> to the array of hashtable slots. The
235 number of hashtable slots and therefore the size of this array is specified
236 by the element <size> of hashtable structure. <entries> contains the number
237 of all hashtable elements stored in the table, including those in the
239 The hashtable element structures (utf, literalstring, classinfo) contain
240 both a pointer to the next hashtable element as a link for the external hash
241 chain and the key of the element. The key is computed from the text of
242 the string or the classname by using up to 8 characters.
244 If the number of entries in the hashtable exceeds twice the size of the
245 hashtableslot-array it is supposed that the average length of the
246 external chains has reached a value beyond 2. Therefore the functions for
247 adding hashtable elements (utf_new, class_new, literalstring_new) double
248 the hashtableslot-array. In this restructuring process all elements have
249 to be inserted into the new hashtable and new external chains must be built.
252 example for the layout of a hashtable:
254 hashtable.ptr--> +-------------------+
258 +-------------------+ +-------------------+ +-------------------+
259 | hashtable element |-->| hashtable element |-->| hashtable element |-->NULL
260 +-------------------+ +-------------------+ +-------------------+
261 | hashtable element |
262 +-------------------+ +-------------------+
263 | hashtable element |-->| hashtable element |-->NULL
264 +-------------------+ +-------------------+
265 | hashtable element |-->NULL
266 +-------------------+
270 +-------------------+
275 /* data structure for utf8 symbols ********************************************/
278 utf *hashlink; /* link for external hash chain */
279 int blength; /* text length in bytes */
280 char *text; /* pointer to text */
284 /* data structure of internal javastrings stored in global hashtable **********/
286 struct literalstring {
287 literalstring *hashlink; /* link for external hash chain */
288 java_objectheader *string;
292 /* data structure for storing information needed for a stacktrace across native functions*/
293 struct native_stackframeinfo {
294 void *returnFromNative;
295 void *addrReturnFromNative;
297 struct native_stackframeinfo *next;
298 struct native_stackframeinfo *prev;
301 typedef struct native_stackframeinfo native_stackframeinfo;
303 /* data structure for calls from c code to java methods */
305 struct jni_callblock {
310 typedef struct jni_callblock jni_callblock;
313 /* data structure for accessing hashtables ************************************/
317 u4 entries; /* number of entries in the table */
318 void **ptr; /* pointer to hashtable */
322 /* data structures of remaining constant pool entries *************************/
324 typedef struct { /* Fieldref, Methodref and InterfaceMethodref */
325 classinfo *class; /* class containing this field/method/interface */
326 utf *name; /* field/method/interface name */
327 utf *descriptor; /* field/method/interface type descriptor string */
331 typedef struct { /* Integer */
336 typedef struct { /* Float */
341 typedef struct { /* Long */
346 typedef struct { /* Double */
351 typedef struct { /* NameAndType (Field or Method) */
352 utf *name; /* field/method name */
353 utf *descriptor; /* field/method type descriptor string */
354 } constant_nameandtype;
357 /* data structures of the runtime system **************************************/
359 /* objects *********************************************************************
361 All objects (and arrays) which resides on the heap need the following
362 header at the beginning of the data structure.
365 struct java_objectheader { /* header for all objects */
366 vftbl *vftbl; /* pointer to virtual function table */
371 /* arrays **********************************************************************
373 All arrays are objects (they need the object header with a pointer
374 to a vftbl (array class table). There is one class for each array
375 type. The array type is described by an arraydescriptor struct
376 which is referenced by the vftbl.
379 /* CAUTION: Don't change the numerical values! These constants (with
380 * the exception of ARRAYTYPE_OBJECT) are used as indices in the
381 * primitive type table.
383 #define ARRAYTYPE_INT PRIMITIVETYPE_INT
384 #define ARRAYTYPE_LONG PRIMITIVETYPE_LONG
385 #define ARRAYTYPE_FLOAT PRIMITIVETYPE_FLOAT
386 #define ARRAYTYPE_DOUBLE PRIMITIVETYPE_DOUBLE
387 #define ARRAYTYPE_BYTE PRIMITIVETYPE_BYTE
388 #define ARRAYTYPE_CHAR PRIMITIVETYPE_CHAR
389 #define ARRAYTYPE_SHORT PRIMITIVETYPE_SHORT
390 #define ARRAYTYPE_BOOLEAN PRIMITIVETYPE_BOOLEAN
391 #define ARRAYTYPE_OBJECT PRIMITIVETYPE_VOID /* don't use as index! */
393 typedef struct java_arrayheader { /* header for all arrays */
394 java_objectheader objheader; /* object header */
395 s4 size; /* array size */
396 #ifdef SIZE_FROM_CLASSINFO
397 s4 alignedsize; /* phil */
403 /* structs for all kinds of arrays ********************************************/
405 typedef struct java_chararray {
406 java_arrayheader header;
410 typedef struct java_floatheader {
411 java_arrayheader header;
415 typedef struct java_doublearray {
416 java_arrayheader header;
420 /* booleanarray and bytearray need identical memory layout (access methods
421 use the same machine code */
423 typedef struct java_booleanarray {
424 java_arrayheader header;
428 typedef struct java_bytearray {
429 java_arrayheader header;
433 typedef struct java_shortarray {
434 java_arrayheader header;
438 typedef struct java_intarray {
439 java_arrayheader header;
443 typedef struct java_longarray {
444 java_arrayheader header;
448 /* objectarray and arrayarray need identical memory layout (access methods
449 use the same machine code */
451 typedef struct java_objectarray {
452 java_arrayheader header;
453 java_objectheader *data[1];
457 /* structure for primitive classes ********************************************/
459 typedef struct primitivetypeinfo {
460 classinfo *class_wrap; /* class for wrapping primitive type */
461 classinfo *class_primitive; /* primitive class */
462 char *wrapname; /* name of class for wrapping */
463 char typesig; /* one character type signature */
464 char *name; /* name of primitive class */
465 char *arrayname; /* name of primitive array class */
466 classinfo *arrayclass; /* primitive array class */
467 vftbl *arrayvftbl; /* vftbl of primitive array class */
471 /* field, method and class structures *****************************************/
474 typedef struct xtafldinfo {
476 classinfo *fldClassType;
477 classSet *XTAclassSet; /* field class type set */
481 /* fieldinfo ******************************************************************/
483 struct fieldinfo { /* field of a class */
484 s4 flags; /* ACC flags */
485 s4 type; /* basic data type */
486 utf *name; /* name of field */
487 utf *descriptor; /* JavaVM descriptor string of field */
489 s4 offset; /* offset from start of object (instance variables) */
491 imm_union value; /* storage for static values (class variables) */
493 classinfo *class; /* needed by typechecker. Could be optimized */
494 /* away by using constant_FMIref instead of */
495 /* fieldinfo throughout the compiler. */
503 /* exceptiontable *************************************************************/
505 typedef struct xtable { /* exceptiontable entry in a method */
506 s4 startpc; /* start pc of guarded area (inclusive) */
507 struct basicblock *start;
509 s4 endpc; /* end pc of guarded area (exklusive) */
510 struct basicblock *end;
512 s4 handlerpc; /* pc of exception handler */
513 struct basicblock *handler;
515 classinfo *catchtype; /* catchtype of exception (NULL == catchall) */
516 struct xtable *next; /* used to build a list of exception when */
517 /* loops are copied */
518 struct xtable *down; /* instead of the old array, a list is used */
522 typedef struct exceptiontable { /* exceptiontable entry in a method */
523 s4 startpc; /* start pc of guarded area (inclusive) */
524 s4 endpc; /* end pc of guarded area (exklusive) */
525 s4 handlerpc; /* pc of exception handler */
526 classinfo *catchtype; /* catchtype of exception (NULL == catchall) */
530 /* methodinfo static info ****************************************************/
531 typedef struct xtainfo {
532 s4 XTAmethodUsed; /* XTA if used in callgraph - not used /used */
533 classSet *XTAclassSet; /* method class type set */
534 /*classSet *PartClassSet */ /* method class type set */
536 classSetNode *paramClassSet; /* cone set of methods parameters */
538 methSet *calls; /* methods this method calls */
539 methSet *calledBy; /* methods that call this method */
540 methSet *marked; //not in Dez /* methods that marked by this method */
542 fldSet *fldsUsed; /* fields used by this method */
543 /*methSetNode *interfaceCalls*/ /* methods this method calls as interface */
544 bool chgdSinceLastParse; /* Changed since last parse ? */
548 /* methodinfo *****************************************************************/
550 struct methodinfo { /* method structure */
551 s4 flags; /* ACC flags */
552 utf *name; /* name of method */
553 utf *descriptor; /* JavaVM descriptor string of method */
554 s4 returntype; /* only temporary valid, return type */
555 classinfo *returnclass; /* pointer to classinfo for the rtn type */ /*XTA*/
556 s4 paramcount; /* only temporary valid, parameter count */
557 u1 *paramtypes; /* only temporary valid, parameter types */
558 classinfo **paramclass; /* pointer to classinfo for a parameter */ /*XTA*/
560 classinfo *class; /* class, the method belongs to */
561 s4 vftblindex; /* index of method in virtual function table
562 (if it is a virtual method) */
563 s4 maxstack; /* maximum stack depth of method */
564 s4 maxlocals; /* maximum number of local variables */
565 s4 jcodelength; /* length of JavaVM code */
566 u1 *jcode; /* pointer to JavaVM code */
568 s4 exceptiontablelength;/* exceptiontable length */
569 exceptiontable *exceptiontable;
570 /* the exceptiontable */
572 u1 *stubroutine; /* stub for compiling or calling natives */
573 s4 mcodelength; /* legth of generated machine code */
574 u1 *mcode; /* pointer to machine code */
575 u1 *entrypoint; /* entry point in machine code */
580 s4 methodUsed; /* marked (might be used later) /not used /used */
581 s4 monoPoly; /* call is mono or poly or unknown */ /*RT stats */
582 /* should # method def'd and used be kept after static parse (will it be used?) */
588 /* innerclassinfo *************************************************************/
590 typedef struct innerclassinfo {
591 classinfo *inner_class; /* inner class pointer */
592 classinfo *outer_class; /* outer class pointer */
593 utf *name; /* innerclass name */
594 s4 flags; /* ACC flags */
598 /* classinfo ******************************************************************/
600 struct classinfo { /* class structure */
601 java_objectheader header; /* classes are also objects */
602 java_objectarray* signers;
603 struct java_security_ProtectionDomain* pd;
604 struct java_lang_VMClass* vmClass;
605 struct java_lang_reflect_Constructor* constructor;
608 s4 initializing_thread; /* gnu classpath */
609 s4 erroneous_state; /* gnu classpath */
610 struct gnu_classpath_RawData* vmData; /* gnu classpath */
612 s4 flags; /* ACC flags */
613 utf *name; /* class name */
615 s4 cpcount; /* number of entries in constant pool */
616 u1 *cptags; /* constant pool tags */
617 voidptr *cpinfos; /* pointer to constant pool info structures */
619 classinfo *super; /* super class pointer */
620 classinfo *sub; /* sub class pointer */
621 classinfo *nextsub; /* pointer to next class in sub class list */
623 s4 interfacescount; /* number of interfaces */
624 classinfo **interfaces; /* pointer to interfaces */
626 s4 fieldscount; /* number of fields */
627 fieldinfo *fields; /* field table */
629 s4 methodscount; /* number of methods */
630 methodinfo *methods; /* method table */
632 listnode listnode; /* linkage */
634 bool initialized; /* true, if class already initialised */
635 bool loaded; /* true, if class already loaded */
636 bool linked; /* true, if class already linked */
637 s4 index; /* hierarchy depth (classes) or index
639 s4 instancesize; /* size of an instance of this class */
640 #ifdef SIZE_FROM_CLASSINFO
641 s4 alignedsize; /* size of an instance, aligned to the
642 allocation size on the heap */
645 vftbl *vftbl; /* pointer to virtual function table */
647 methodinfo *finalizer; /* finalizer method */
649 u2 innerclasscount; /* number of inner classes */
650 innerclassinfo *innerclass;
652 classinfo *hashlink; /* link for external hash chain */
653 bool classvftbl; /* has its own copy of the Class vtbl */
655 s4 classUsed; /* 0= not used 1 = used CO-RT */
657 classSetNode *impldBy; /* implemented by class set */
658 utf *packagename; /* full name of the package */
659 java_objectheader *classloader; /* 0 for bootstrap classloader */
662 /* check if class is an array class. Only use for linked classes! */
663 #define CLASS_IS_ARRAY(clsinfo) ((clsinfo)->vftbl->arraydesc != NULL)
666 /* virtual function table ******************************************************
668 The vtbl has a bidirectional layout with open ends at both sides.
669 interfacetablelength gives the number of entries of the interface table at
670 the start of the vftbl. The vftbl pointer points to &interfacetable[0].
671 vftbllength gives the number of entries of table at the end of the vftbl.
673 runtime type check (checkcast):
675 Different methods are used for runtime type check depending on the
676 argument of checkcast/instanceof.
678 A check against a class is implemented via relative numbering on the class
679 hierachy tree. The tree is numbered in a depth first traversal setting
680 the base field and the diff field. The diff field gets the result of
681 (high - base) so that a range check can be implemented by an unsigned
682 compare. A sub type test is done by checking the inclusion of base of
683 the sub class in the range of the superclass.
685 A check against an interface is implemented via the interfacevftbl. If the
686 interfacevftbl contains a nonnull value a class is a subclass of this
691 Like standard virtual methods interface methods are called using
692 virtual function tables. All interfaces are numbered sequentially
693 (starting with zero). For each class there exist an interface table
694 of virtual function tables for each implemented interface. The length
695 of the interface table is determined by the highest number of an
696 implemented interface.
698 The following example assumes a class which implements interface 0 and 3:
700 interfacetablelength = 4
703 +-----------+ | method 2 |---> method z
704 | class | | method 1 |---> method y
705 +-----------+ | method 0 |---> method x
706 | ivftbl 0 |----------> +----------+
707 vftblptr ---> +-----------+
708 | ivftbl -1 |--> NULL +----------+
709 | ivftbl -2 |--> NULL | method 1 |---> method x
710 | ivftbl -3 |-----+ | method 0 |---> method a
711 +-----------+ +----> +----------+
718 interfacevftbllength ---> +---------------+
720 *******************************************************************************/
723 methodptr *interfacetable[1]; /* interface table (access via macro) */
725 classinfo *class; /* class, the vtbl belongs to */
727 arraydescriptor *arraydesc; /* for array classes, otherwise NULL */
729 s4 vftbllength; /* virtual function table length */
730 s4 interfacetablelength; /* interface table length */
732 s4 baseval; /* base for runtime type check */
733 /* (-index for interfaces) */
734 s4 diffval; /* high - base for runtime type check */
736 s4 *interfacevftbllength; /* length of interface vftbls */
738 methodptr table[1]; /* class vftbl */
741 #define VFTBLINTERFACETABLE(v,i) (v)->interfacetable[-i]
744 /* arraydescriptor ************************************************************
746 For every array class an arraydescriptor is allocated which
747 describes the array class.
748 The arraydescriptor is referenced from the vftbl of the array
751 *******************************************************************************/
753 struct arraydescriptor {
754 vftbl *componentvftbl; /* vftbl of the component type, NULL for primit. */
755 vftbl *elementvftbl; /* vftbl of the element type, NULL for primitive */
756 short arraytype; /* ARRAYTYPE_* constant */
757 short dimension; /* dimension of the array (always >= 1) */
758 s4 dataoffset; /* offset of the array data from object pointer */
759 s4 componentsize; /* size of a component in bytes */
760 short elementtype; /* ARRAYTYPE_* constant */
764 /* references to some system classes ******************************************/
766 extern classinfo *class_java_lang_Object;
767 extern classinfo *class_java_lang_String;
768 extern classinfo *class_java_lang_Throwable;
769 extern classinfo *class_java_lang_Cloneable;
770 extern classinfo *class_java_io_Serializable;
771 extern classinfo *class_java_lang_ClassCastException;
772 extern classinfo *class_java_lang_NullPointerException;
773 extern classinfo *class_java_lang_ArrayIndexOutOfBoundsException;
774 extern classinfo *class_java_lang_NegativeArraySizeException;
775 extern classinfo *class_java_lang_OutOfMemoryError;
776 extern classinfo *class_java_lang_ArithmeticException;
777 extern classinfo *class_java_lang_ArrayStoreException;
778 extern classinfo *class_java_lang_ThreadDeath;
780 /* pseudo classes for the type checker ****************************************/
783 * pseudo_class_Arraystub
784 * (extends Object implements Cloneable, java.io.Serializable)
786 * If two arrays of incompatible component types are merged,
787 * the resulting reference has no accessible components.
788 * The result does, however, implement the interfaces Cloneable
789 * and java.io.Serializable. This pseudo class is used internally
790 * to represent such results. (They are *not* considered arrays!)
794 * This pseudo class is used internally to represent the
799 * This pseudo class is used internally to represent the
800 * the 'uninitialized object' type.
803 extern classinfo *pseudo_class_Arraystub;
804 extern classinfo *pseudo_class_Null;
805 extern classinfo *pseudo_class_New;
806 extern vftbl *pseudo_class_Arraystub_vftbl;
808 extern utf *array_packagename;
811 /* instances of some system classes *******************************************/
813 extern java_objectheader *proto_java_lang_ClassCastException;
814 extern java_objectheader *proto_java_lang_NullPointerException;
815 extern java_objectheader *proto_java_lang_ArrayIndexOutOfBoundsException;
816 extern java_objectheader *proto_java_lang_NegativeArraySizeException;
817 extern java_objectheader *proto_java_lang_OutOfMemoryError;
818 extern java_objectheader *proto_java_lang_ArithmeticException;
819 extern java_objectheader *proto_java_lang_ArrayStoreException;
820 extern java_objectheader *proto_java_lang_ThreadDeath;
823 /* flag variables *************************************************************/
825 extern bool compileall;
826 extern bool runverbose;
828 extern bool opt_rt; /* Rapid Type Analysis for better inlining CO-RT*/
829 extern bool opt_xta; /* X Type Analysis for better inlining CO-XTA*/
830 extern bool opt_vta; /* Variable Type Analysis for better inlining CO-VTA*/
831 extern bool opt_verify; /* true if classfiles should be verified */
832 #ifdef TYPECHECK_VERBOSE_OPT
833 extern bool typecheckverbose;
836 /*extern int pClassHeir;*/
837 /*extern int pCallgraph;*/
838 /*extern int pOpcodes;*/
839 /*extern int pStats;*/
841 /*extern void RT_jit_parse(methodinfo *m);*/
844 /* statistic variables ********************************************************/
846 extern int count_class_infos;
847 extern int count_const_pool_len;
848 extern int count_vftbl_len;
849 extern int count_utf_len;
850 extern int count_all_methods;
851 extern int count_vmcode_len;
852 extern int count_extable_len;
853 extern int count_class_loads;
854 extern int count_class_inits;
855 extern int count_utf_new;
856 extern int count_utf_new_found;
859 /* table of primitive types ***************************************************/
861 /* This array can be indexed by the PRIMITIVETYPE_ and ARRAYTYPE_
862 * constants (except ARRAYTYPE_OBJECT).
864 extern primitivetypeinfo primitivetype_table[PRIMITIVETYPE_COUNT];
867 /* macros for descriptor parsing **********************************************/
869 /* SKIP_FIELDDESCRIPTOR:
870 * utf_ptr must point to the first character of a field descriptor.
871 * After the macro call utf_ptr points to the first character after
872 * the field descriptor.
874 * CAUTION: This macro does not check for an unexpected end of the
875 * descriptor. Better use SKIP_FIELDDESCRIPTOR_SAFE.
877 #define SKIP_FIELDDESCRIPTOR(utf_ptr) \
878 do { while (*(utf_ptr)=='[') (utf_ptr)++; \
879 if (*(utf_ptr)++=='L') \
880 while(*(utf_ptr)++ != ';') /* skip */; } while(0)
882 /* SKIP_FIELDDESCRIPTOR_SAFE:
883 * utf_ptr must point to the first character of a field descriptor.
884 * After the macro call utf_ptr points to the first character after
885 * the field descriptor.
888 * utf_ptr....points to first char of descriptor
889 * end_ptr....points to first char after the end of the string
890 * errorflag..must be initialized (to false) by the caller!
892 * utf_ptr....points to first char after the descriptor
893 * errorflag..set to true if the string ended unexpectedly
895 #define SKIP_FIELDDESCRIPTOR_SAFE(utf_ptr,end_ptr,errorflag) \
896 do { while ((utf_ptr) != (end_ptr) && *(utf_ptr)=='[') (utf_ptr)++; \
897 if ((utf_ptr) == (end_ptr)) \
898 (errorflag) = true; \
900 if (*(utf_ptr)++=='L') { \
901 while((utf_ptr) != (end_ptr) && *(utf_ptr)++ != ';') \
903 if ((utf_ptr)[-1] != ';') \
904 (errorflag) = true; }} while(0)
907 /* Synchronization ************************************************************/
909 #if defined(USE_THREADS) && defined(NATIVE_THREADS)
910 extern pthread_mutex_t compiler_mutex;
911 extern int cast_counter;
918 #endif /* _GLOBAL_H */
922 * These are local overrides for various environment variables in Emacs.
923 * Please do not remove this and leave it at the end of the file, where
924 * Emacs will automagically detect them.
925 * ---------------------------------------------------------------------
928 * indent-tabs-mode: t