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 888 2004-01-19 12:16:11Z edwin $
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 calls from c code to java methods */
294 struct jni_callblock {
299 typedef struct jni_callblock jni_callblock;
302 /* data structure for accessing hashtables ************************************/
306 u4 entries; /* number of entries in the table */
307 void **ptr; /* pointer to hashtable */
311 /* data structures of remaining constant pool entries *************************/
313 typedef struct { /* Fieldref, Methodref and InterfaceMethodref */
314 classinfo *class; /* class containing this field/method/interface */
315 utf *name; /* field/method/interface name */
316 utf *descriptor; /* field/method/interface type descriptor string */
320 typedef struct { /* Integer */
325 typedef struct { /* Float */
330 typedef struct { /* Long */
335 typedef struct { /* Double */
340 typedef struct { /* NameAndType (Field or Method) */
341 utf *name; /* field/method name */
342 utf *descriptor; /* field/method type descriptor string */
343 } constant_nameandtype;
346 /* data structures of the runtime system **************************************/
348 /* objects *********************************************************************
350 All objects (and arrays) which resides on the heap need the following
351 header at the beginning of the data structure.
354 struct java_objectheader { /* header for all objects */
355 vftbl *vftbl; /* pointer to virtual function table */
360 /* arrays **********************************************************************
362 All arrays are objects (they need the object header with a pointer
363 to a vftbl (array class table). There is one class for each array
364 type. The array type is described by an arraydescriptor struct
365 which is referenced by the vftbl.
368 /* CAUTION: Don't change the numerical values! These constants (with
369 * the exception of ARRAYTYPE_OBJECT) are used as indices in the
370 * primitive type table.
372 #define ARRAYTYPE_INT PRIMITIVETYPE_INT
373 #define ARRAYTYPE_LONG PRIMITIVETYPE_LONG
374 #define ARRAYTYPE_FLOAT PRIMITIVETYPE_FLOAT
375 #define ARRAYTYPE_DOUBLE PRIMITIVETYPE_DOUBLE
376 #define ARRAYTYPE_BYTE PRIMITIVETYPE_BYTE
377 #define ARRAYTYPE_CHAR PRIMITIVETYPE_CHAR
378 #define ARRAYTYPE_SHORT PRIMITIVETYPE_SHORT
379 #define ARRAYTYPE_BOOLEAN PRIMITIVETYPE_BOOLEAN
380 #define ARRAYTYPE_OBJECT PRIMITIVETYPE_VOID /* don't use as index! */
382 typedef struct java_arrayheader { /* header for all arrays */
383 java_objectheader objheader; /* object header */
384 s4 size; /* array size */
385 #ifdef SIZE_FROM_CLASSINFO
386 s4 alignedsize; /* phil */
392 /* structs for all kinds of arrays ********************************************/
394 typedef struct java_chararray {
395 java_arrayheader header;
399 typedef struct java_floatheader {
400 java_arrayheader header;
404 typedef struct java_doublearray {
405 java_arrayheader header;
409 /* booleanarray and bytearray need identical memory layout (access methods
410 use the same machine code */
412 typedef struct java_booleanarray {
413 java_arrayheader header;
417 typedef struct java_bytearray {
418 java_arrayheader header;
422 typedef struct java_shortarray {
423 java_arrayheader header;
427 typedef struct java_intarray {
428 java_arrayheader header;
432 typedef struct java_longarray {
433 java_arrayheader header;
437 /* objectarray and arrayarray need identical memory layout (access methods
438 use the same machine code */
440 typedef struct java_objectarray {
441 java_arrayheader header;
442 java_objectheader *data[1];
446 /* structure for primitive classes ********************************************/
448 typedef struct primitivetypeinfo {
449 classinfo *class_wrap; /* class for wrapping primitive type */
450 classinfo *class_primitive; /* primitive class */
451 char *wrapname; /* name of class for wrapping */
452 char typesig; /* one character type signature */
453 char *name; /* name of primitive class */
454 char *arrayname; /* name of primitive array class */
455 classinfo *arrayclass; /* primitive array class */
456 vftbl *arrayvftbl; /* vftbl of primitive array class */
460 /* field, method and class structures *****************************************/
463 typedef struct xtafldinfo {
465 classinfo *fldClassType;
466 classSet *XTAclassSet; /* field class type set */
470 /* fieldinfo ******************************************************************/
472 struct fieldinfo { /* field of a class */
473 s4 flags; /* ACC flags */
474 s4 type; /* basic data type */
475 utf *name; /* name of field */
476 utf *descriptor; /* JavaVM descriptor string of field */
478 s4 offset; /* offset from start of object (instance variables) */
480 imm_union value; /* storage for static values (class variables) */
482 classinfo *class; /* needed by typechecker. Could be optimized */
483 /* away by using constant_FMIref instead of */
484 /* fieldinfo throughout the compiler. */
492 /* exceptiontable *************************************************************/
494 typedef struct xtable { /* exceptiontable entry in a method */
495 s4 startpc; /* start pc of guarded area (inclusive) */
496 struct basicblock *start;
498 s4 endpc; /* end pc of guarded area (exklusive) */
499 struct basicblock *end;
501 s4 handlerpc; /* pc of exception handler */
502 struct basicblock *handler;
504 classinfo *catchtype; /* catchtype of exception (NULL == catchall) */
505 struct xtable *next; /* used to build a list of exception when */
506 /* loops are copied */
507 struct xtable *down; /* instead of the old array, a list is used */
511 typedef struct exceptiontable { /* exceptiontable entry in a method */
512 s4 startpc; /* start pc of guarded area (inclusive) */
513 s4 endpc; /* end pc of guarded area (exklusive) */
514 s4 handlerpc; /* pc of exception handler */
515 classinfo *catchtype; /* catchtype of exception (NULL == catchall) */
519 /* methodinfo static info ****************************************************/
520 typedef struct xtainfo {
521 s4 XTAmethodUsed; /* XTA if used in callgraph - not used /used */
522 classSet *XTAclassSet; /* method class type set */
523 /*classSet *PartClassSet */ /* method class type set */
525 classSetNode *paramClassSet; /* cone set of methods parameters */
527 methSet *calls; /* methods this method calls */
528 methSet *calledBy; /* methods that call this method */
529 methSet *marked; /* methods that marked by this method */
530 /*methSet *markedBy*/
531 fldSet *fldsUsed; /* fields used by this method */
532 /*methSetNode *interfaceCalls*/ /* methods this method calls as interface */
533 bool chgdSinceLastParse; /* Changed since last parse ? */
537 /* methodinfo *****************************************************************/
539 struct methodinfo { /* method structure */
540 s4 flags; /* ACC flags */
541 utf *name; /* name of method */
542 utf *descriptor; /* JavaVM descriptor string of method */
543 s4 returntype; /* only temporary valid, return type */
544 classinfo *returnclass; /* pointer to classinfo for the rtn type */ /*XTA*/
545 s4 paramcount; /* only temporary valid, parameter count */
546 u1 *paramtypes; /* only temporary valid, parameter types */
547 classinfo **paramclass; /* pointer to classinfo for a parameter */ /*XTA*/
549 classinfo *class; /* class, the method belongs to */
550 s4 vftblindex; /* index of method in virtual function table
551 (if it is a virtual method) */
552 s4 maxstack; /* maximum stack depth of method */
553 s4 maxlocals; /* maximum number of local variables */
554 s4 jcodelength; /* length of JavaVM code */
555 u1 *jcode; /* pointer to JavaVM code */
557 s4 exceptiontablelength;/* exceptiontable length */
558 exceptiontable *exceptiontable;
559 /* the exceptiontable */
561 u1 *stubroutine; /* stub for compiling or calling natives */
562 s4 mcodelength; /* legth of generated machine code */
563 u1 *mcode; /* pointer to machine code */
564 u1 *entrypoint; /* entry point in machine code */
569 s4 methodUsed; /* marked (might be used later) /not used /used */
570 s4 monoPoly; /* call is mono or poly or unknown */ /*RT stats */
571 /* should # method def'd and used be kept after static parse (will it be used?) */
577 /* innerclassinfo *************************************************************/
579 typedef struct innerclassinfo {
580 classinfo *inner_class; /* inner class pointer */
581 classinfo *outer_class; /* outer class pointer */
582 utf *name; /* innerclass name */
583 s4 flags; /* ACC flags */
587 /* classinfo ******************************************************************/
589 struct classinfo { /* class structure */
590 java_objectheader header; /* classes are also objects */
591 java_objectarray* signers;
592 struct java_security_ProtectionDomain* pd;
593 struct java_lang_VMClass* vmClass;
594 struct java_lang_reflect_Constructor* constructor;
597 s4 initializing_thread; /* gnu classpath */
598 s4 erroneous_state; /* gnu classpath */
599 struct gnu_classpath_RawData* vmData; /* gnu classpath */
601 s4 flags; /* ACC flags */
602 utf *name; /* class name */
604 s4 cpcount; /* number of entries in constant pool */
605 u1 *cptags; /* constant pool tags */
606 voidptr *cpinfos; /* pointer to constant pool info structures */
608 classinfo *super; /* super class pointer */
609 classinfo *sub; /* sub class pointer */
610 classinfo *nextsub; /* pointer to next class in sub class list */
612 s4 interfacescount; /* number of interfaces */
613 classinfo **interfaces; /* pointer to interfaces */
615 s4 fieldscount; /* number of fields */
616 fieldinfo *fields; /* field table */
618 s4 methodscount; /* number of methods */
619 methodinfo *methods; /* method table */
621 listnode listnode; /* linkage */
623 bool initialized; /* true, if class already initialised */
624 bool loaded; /* true, if class already loaded */
625 bool linked; /* true, if class already linked */
626 s4 index; /* hierarchy depth (classes) or index
628 s4 instancesize; /* size of an instance of this class */
629 #ifdef SIZE_FROM_CLASSINFO
630 s4 alignedsize; /* size of an instance, aligned to the
631 allocation size on the heap */
634 vftbl *vftbl; /* pointer to virtual function table */
636 methodinfo *finalizer; /* finalizer method */
638 u2 innerclasscount; /* number of inner classes */
639 innerclassinfo *innerclass;
641 classinfo *hashlink; /* link for external hash chain */
642 bool classvftbl; /* has its own copy of the Class vtbl */
644 s4 classUsed; /* 0= not used 1 = used CO-RT */
646 classSetNode *impldBy; /* implemented by class set */
647 utf *packagename; /* full name of the package */
650 /* check if class is an array class. Only use for linked classes! */
651 #define CLASS_IS_ARRAY(clsinfo) ((clsinfo)->vftbl->arraydesc != NULL)
654 /* virtual function table ******************************************************
656 The vtbl has a bidirectional layout with open ends at both sides.
657 interfacetablelength gives the number of entries of the interface table at
658 the start of the vftbl. The vftbl pointer points to &interfacetable[0].
659 vftbllength gives the number of entries of table at the end of the vftbl.
661 runtime type check (checkcast):
663 Different methods are used for runtime type check depending on the
664 argument of checkcast/instanceof.
666 A check against a class is implemented via relative numbering on the class
667 hierachy tree. The tree is numbered in a depth first traversal setting
668 the base field and the diff field. The diff field gets the result of
669 (high - base) so that a range check can be implemented by an unsigned
670 compare. A sub type test is done by checking the inclusion of base of
671 the sub class in the range of the superclass.
673 A check against an interface is implemented via the interfacevftbl. If the
674 interfacevftbl contains a nonnull value a class is a subclass of this
679 Like standard virtual methods interface methods are called using
680 virtual function tables. All interfaces are numbered sequentially
681 (starting with zero). For each class there exist an interface table
682 of virtual function tables for each implemented interface. The length
683 of the interface table is determined by the highest number of an
684 implemented interface.
686 The following example assumes a class which implements interface 0 and 3:
688 interfacetablelength = 4
691 +-----------+ | method 2 |---> method z
692 | class | | method 1 |---> method y
693 +-----------+ | method 0 |---> method x
694 | ivftbl 0 |----------> +----------+
695 vftblptr ---> +-----------+
696 | ivftbl -1 |--> NULL +----------+
697 | ivftbl -2 |--> NULL | method 1 |---> method x
698 | ivftbl -3 |-----+ | method 0 |---> method a
699 +-----------+ +----> +----------+
706 interfacevftbllength ---> +---------------+
708 *******************************************************************************/
711 methodptr *interfacetable[1]; /* interface table (access via macro) */
713 classinfo *class; /* class, the vtbl belongs to */
715 arraydescriptor *arraydesc; /* for array classes, otherwise NULL */
717 s4 vftbllength; /* virtual function table length */
718 s4 interfacetablelength; /* interface table length */
720 s4 baseval; /* base for runtime type check */
721 /* (-index for interfaces) */
722 s4 diffval; /* high - base for runtime type check */
724 s4 *interfacevftbllength; /* length of interface vftbls */
726 methodptr table[1]; /* class vftbl */
729 #define VFTBLINTERFACETABLE(v,i) (v)->interfacetable[-i]
732 /* arraydescriptor ************************************************************
734 For every array class an arraydescriptor is allocated which
735 describes the array class.
736 The arraydescriptor is referenced from the vftbl of the array
739 *******************************************************************************/
741 struct arraydescriptor {
742 vftbl *componentvftbl; /* vftbl of the component type, NULL for primit. */
743 vftbl *elementvftbl; /* vftbl of the element type, NULL for primitive */
744 short arraytype; /* ARRAYTYPE_* constant */
745 short dimension; /* dimension of the array (always >= 1) */
746 s4 dataoffset; /* offset of the array data from object pointer */
747 s4 componentsize; /* size of a component in bytes */
748 short elementtype; /* ARRAYTYPE_* constant */
752 /* references to some system classes ******************************************/
754 extern classinfo *class_java_lang_Object;
755 extern classinfo *class_java_lang_String;
756 extern classinfo *class_java_lang_Throwable;
757 extern classinfo *class_java_lang_Cloneable;
758 extern classinfo *class_java_io_Serializable;
759 extern classinfo *class_java_lang_ClassCastException;
760 extern classinfo *class_java_lang_NullPointerException;
761 extern classinfo *class_java_lang_ArrayIndexOutOfBoundsException;
762 extern classinfo *class_java_lang_NegativeArraySizeException;
763 extern classinfo *class_java_lang_OutOfMemoryError;
764 extern classinfo *class_java_lang_ArithmeticException;
765 extern classinfo *class_java_lang_ArrayStoreException;
766 extern classinfo *class_java_lang_ThreadDeath;
768 /* pseudo classes for the type checker ****************************************/
771 * pseudo_class_Arraystub
772 * (extends Object implements Cloneable, java.io.Serializable)
774 * If two arrays of incompatible component types are merged,
775 * the resulting reference has no accessible components.
776 * The result does, however, implement the interfaces Cloneable
777 * and java.io.Serializable. This pseudo class is used internally
778 * to represent such results. (They are *not* considered arrays!)
782 * This pseudo class is used internally to represent the
787 * This pseudo class is used internally to represent the
788 * the 'uninitialized object' type.
791 extern classinfo *pseudo_class_Arraystub;
792 extern classinfo *pseudo_class_Null;
793 extern classinfo *pseudo_class_New;
794 extern vftbl *pseudo_class_Arraystub_vftbl;
796 extern utf *array_packagename;
799 /* instances of some system classes *******************************************/
801 extern java_objectheader *proto_java_lang_ClassCastException;
802 extern java_objectheader *proto_java_lang_NullPointerException;
803 extern java_objectheader *proto_java_lang_ArrayIndexOutOfBoundsException;
804 extern java_objectheader *proto_java_lang_NegativeArraySizeException;
805 extern java_objectheader *proto_java_lang_OutOfMemoryError;
806 extern java_objectheader *proto_java_lang_ArithmeticException;
807 extern java_objectheader *proto_java_lang_ArrayStoreException;
808 extern java_objectheader *proto_java_lang_ThreadDeath;
811 /* flag variables *************************************************************/
813 extern bool compileall;
814 extern bool runverbose;
816 extern bool opt_rt; /* Rapid Type Analysis for better inlining CO-RT*/
817 extern bool opt_xta; /* X Type Analysis for better inlining CO-XTA*/
818 extern bool opt_vta; /* Variable Type Analysis for better inlining CO-VTA*/
819 extern bool opt_verify; /* true if classfiles should be verified */
820 #ifdef TYPECHECK_VERBOSE_OPT
821 extern bool typecheckverbose;
824 /*extern int pClassHeir;*/
825 /*extern int pCallgraph;*/
826 /*extern int pOpcodes;*/
827 /*extern int pStats;*/
829 /*extern void RT_jit_parse(methodinfo *m);*/
832 /* statistic variables ********************************************************/
834 extern int count_class_infos;
835 extern int count_const_pool_len;
836 extern int count_vftbl_len;
837 extern int count_utf_len;
838 extern int count_all_methods;
839 extern int count_vmcode_len;
840 extern int count_extable_len;
841 extern int count_class_loads;
842 extern int count_class_inits;
843 extern int count_utf_new;
844 extern int count_utf_new_found;
847 /* table of primitive types ***************************************************/
849 /* This array can be indexed by the PRIMITIVETYPE_ and ARRAYTYPE_
850 * constants (except ARRAYTYPE_OBJECT).
852 extern primitivetypeinfo primitivetype_table[PRIMITIVETYPE_COUNT];
855 /* macros for descriptor parsing **********************************************/
857 /* SKIP_FIELDDESCRIPTOR:
858 * utf_ptr must point to the first character of a field descriptor.
859 * After the macro call utf_ptr points to the first character after
860 * the field descriptor.
862 * CAUTION: This macro does not check for an unexpected end of the
863 * descriptor. Better use SKIP_FIELDDESCRIPTOR_SAFE.
865 #define SKIP_FIELDDESCRIPTOR(utf_ptr) \
866 do { while (*(utf_ptr)=='[') (utf_ptr)++; \
867 if (*(utf_ptr)++=='L') \
868 while(*(utf_ptr)++ != ';') /* skip */; } while(0)
870 /* SKIP_FIELDDESCRIPTOR_SAFE:
871 * utf_ptr must point to the first character of a field descriptor.
872 * After the macro call utf_ptr points to the first character after
873 * the field descriptor.
876 * utf_ptr....points to first char of descriptor
877 * end_ptr....points to first char after the end of the string
878 * errorflag..must be initialized (to false) by the caller!
880 * utf_ptr....points to first char after the descriptor
881 * errorflag..set to true if the string ended unexpectedly
883 #define SKIP_FIELDDESCRIPTOR_SAFE(utf_ptr,end_ptr,errorflag) \
884 do { while ((utf_ptr) != (end_ptr) && *(utf_ptr)=='[') (utf_ptr)++; \
885 if ((utf_ptr) == (end_ptr)) \
886 (errorflag) = true; \
888 if (*(utf_ptr)++=='L') { \
889 while((utf_ptr) != (end_ptr) && *(utf_ptr)++ != ';') \
891 if ((utf_ptr)[-1] != ';') \
892 (errorflag) = true; }} while(0)
895 /* Synchronization ************************************************************/
897 #if defined(USE_THREADS) && defined(NATIVE_THREADS)
898 extern pthread_mutex_t compiler_mutex;
899 extern int cast_counter;
906 #endif /* _GLOBAL_H */
910 * These are local overrides for various environment variables in Emacs.
911 * Please do not remove this and leave it at the end of the file, where
912 * Emacs will automagically detect them.
913 * ---------------------------------------------------------------------
916 * indent-tabs-mode: t