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 963 2004-03-15 07:37:49Z 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 lineinfo lineinfo;
199 typedef struct arraydescriptor arraydescriptor;
202 /* constant pool entries *******************************************************
204 All constant pool entries need a data structure which contain the entrys
205 value. In some cases this structure exist already, in the remaining cases
206 this structure must be generated:
208 kind structure generated?
209 ----------------------------------------------------------------------
210 CONSTANT_Class classinfo no
211 CONSTANT_Fieldref constant_FMIref yes
212 CONSTANT_Methodref constant_FMIref yes
213 CONSTANT_InterfaceMethodref constant_FMIref yes
214 CONSTANT_String unicode no
215 CONSTANT_Integer constant_integer yes
216 CONSTANT_Float constant_float yes
217 CONSTANT_Long constant_long yes
218 CONSTANT_Double constant_double yes
219 CONSTANT_NameAndType constant_nameandtype yes
220 CONSTANT_Utf8 unicode no
223 *******************************************************************************/
225 /* data structures for hashtables ********************************************
228 All utf-symbols, javastrings and classes are stored in global hashtables,
229 so every symbol exists only once. Equal symbols have identical pointers.
230 The functions for adding hashtable elements search the table for the
231 element with the specified name/text and return it on success. Otherwise a
232 new hashtable element is created.
234 The hashtables use external linking for handling collisions. The hashtable
235 structure contains a pointer <ptr> to the array of hashtable slots. The
236 number of hashtable slots and therefore the size of this array is specified
237 by the element <size> of hashtable structure. <entries> contains the number
238 of all hashtable elements stored in the table, including those in the
240 The hashtable element structures (utf, literalstring, classinfo) contain
241 both a pointer to the next hashtable element as a link for the external hash
242 chain and the key of the element. The key is computed from the text of
243 the string or the classname by using up to 8 characters.
245 If the number of entries in the hashtable exceeds twice the size of the
246 hashtableslot-array it is supposed that the average length of the
247 external chains has reached a value beyond 2. Therefore the functions for
248 adding hashtable elements (utf_new, class_new, literalstring_new) double
249 the hashtableslot-array. In this restructuring process all elements have
250 to be inserted into the new hashtable and new external chains must be built.
253 example for the layout of a hashtable:
255 hashtable.ptr--> +-------------------+
259 +-------------------+ +-------------------+ +-------------------+
260 | hashtable element |-->| hashtable element |-->| hashtable element |-->NULL
261 +-------------------+ +-------------------+ +-------------------+
262 | hashtable element |
263 +-------------------+ +-------------------+
264 | hashtable element |-->| hashtable element |-->NULL
265 +-------------------+ +-------------------+
266 | hashtable element |-->NULL
267 +-------------------+
271 +-------------------+
276 /* data structure for utf8 symbols ********************************************/
279 utf *hashlink; /* link for external hash chain */
280 int blength; /* text length in bytes */
281 char *text; /* pointer to text */
285 /* data structure of internal javastrings stored in global hashtable **********/
287 struct literalstring {
288 literalstring *hashlink; /* link for external hash chain */
289 java_objectheader *string;
293 /* data structure for storing information needed for a stacktrace across native functions*/
294 struct native_stackframeinfo {
295 void *returnFromNative;
296 void *addrReturnFromNative;
298 struct native_stackframeinfo *next;
299 struct native_stackframeinfo *prev;
302 typedef struct native_stackframeinfo native_stackframeinfo;
304 struct stacktraceelement {
313 typedef struct stacktraceelement stacktraceelement;
315 /* data structure for calls from c code to java methods */
317 struct jni_callblock {
322 typedef struct jni_callblock jni_callblock;
325 /* data structure for accessing hashtables ************************************/
329 u4 entries; /* number of entries in the table */
330 void **ptr; /* pointer to hashtable */
334 /* data structures of remaining constant pool entries *************************/
336 typedef struct { /* Fieldref, Methodref and InterfaceMethodref */
337 classinfo *class; /* class containing this field/method/interface */
338 utf *name; /* field/method/interface name */
339 utf *descriptor; /* field/method/interface type descriptor string */
343 typedef struct { /* Integer */
348 typedef struct { /* Float */
353 typedef struct { /* Long */
358 typedef struct { /* Double */
363 typedef struct { /* NameAndType (Field or Method) */
364 utf *name; /* field/method name */
365 utf *descriptor; /* field/method type descriptor string */
366 } constant_nameandtype;
369 /* data structures of the runtime system **************************************/
371 /* objects *********************************************************************
373 All objects (and arrays) which resides on the heap need the following
374 header at the beginning of the data structure.
377 struct java_objectheader { /* header for all objects */
378 vftbl *vftbl; /* pointer to virtual function table */
383 /* arrays **********************************************************************
385 All arrays are objects (they need the object header with a pointer
386 to a vftbl (array class table). There is one class for each array
387 type. The array type is described by an arraydescriptor struct
388 which is referenced by the vftbl.
391 /* CAUTION: Don't change the numerical values! These constants (with
392 * the exception of ARRAYTYPE_OBJECT) are used as indices in the
393 * primitive type table.
395 #define ARRAYTYPE_INT PRIMITIVETYPE_INT
396 #define ARRAYTYPE_LONG PRIMITIVETYPE_LONG
397 #define ARRAYTYPE_FLOAT PRIMITIVETYPE_FLOAT
398 #define ARRAYTYPE_DOUBLE PRIMITIVETYPE_DOUBLE
399 #define ARRAYTYPE_BYTE PRIMITIVETYPE_BYTE
400 #define ARRAYTYPE_CHAR PRIMITIVETYPE_CHAR
401 #define ARRAYTYPE_SHORT PRIMITIVETYPE_SHORT
402 #define ARRAYTYPE_BOOLEAN PRIMITIVETYPE_BOOLEAN
403 #define ARRAYTYPE_OBJECT PRIMITIVETYPE_VOID /* don't use as index! */
405 typedef struct java_arrayheader { /* header for all arrays */
406 java_objectheader objheader; /* object header */
407 s4 size; /* array size */
408 #ifdef SIZE_FROM_CLASSINFO
409 s4 alignedsize; /* phil */
415 /* structs for all kinds of arrays ********************************************/
417 typedef struct java_chararray {
418 java_arrayheader header;
422 typedef struct java_floatheader {
423 java_arrayheader header;
427 typedef struct java_doublearray {
428 java_arrayheader header;
432 /* booleanarray and bytearray need identical memory layout (access methods
433 use the same machine code */
435 typedef struct java_booleanarray {
436 java_arrayheader header;
440 typedef struct java_bytearray {
441 java_arrayheader header;
445 typedef struct java_shortarray {
446 java_arrayheader header;
450 typedef struct java_intarray {
451 java_arrayheader header;
455 typedef struct java_longarray {
456 java_arrayheader header;
460 /* objectarray and arrayarray need identical memory layout (access methods
461 use the same machine code */
463 typedef struct java_objectarray {
464 java_arrayheader header;
465 java_objectheader *data[1];
469 /* structure for primitive classes ********************************************/
471 typedef struct primitivetypeinfo {
472 classinfo *class_wrap; /* class for wrapping primitive type */
473 classinfo *class_primitive; /* primitive class */
474 char *wrapname; /* name of class for wrapping */
475 char typesig; /* one character type signature */
476 char *name; /* name of primitive class */
477 char *arrayname; /* name of primitive array class */
478 classinfo *arrayclass; /* primitive array class */
479 vftbl *arrayvftbl; /* vftbl of primitive array class */
483 /* field, method and class structures *****************************************/
486 typedef struct xtafldinfo {
488 classinfo *fldClassType;
489 classSet *XTAclassSet; /* field class type set */
493 /* fieldinfo ******************************************************************/
495 struct fieldinfo { /* field of a class */
496 s4 flags; /* ACC flags */
497 s4 type; /* basic data type */
498 utf *name; /* name of field */
499 utf *descriptor; /* JavaVM descriptor string of field */
501 s4 offset; /* offset from start of object (instance variables) */
503 imm_union value; /* storage for static values (class variables) */
505 classinfo *class; /* needed by typechecker. Could be optimized */
506 /* away by using constant_FMIref instead of */
507 /* fieldinfo throughout the compiler. */
515 /* exceptiontable *************************************************************/
517 typedef struct xtable { /* exceptiontable entry in a method */
518 s4 startpc; /* start pc of guarded area (inclusive) */
519 struct basicblock *start;
521 s4 endpc; /* end pc of guarded area (exklusive) */
522 struct basicblock *end;
524 s4 handlerpc; /* pc of exception handler */
525 struct basicblock *handler;
527 classinfo *catchtype; /* catchtype of exception (NULL == catchall) */
528 struct xtable *next; /* used to build a list of exception when */
529 /* loops are copied */
530 struct xtable *down; /* instead of the old array, a list is used */
534 typedef struct exceptiontable { /* exceptiontable entry in a method */
535 s4 startpc; /* start pc of guarded area (inclusive) */
536 s4 endpc; /* end pc of guarded area (exklusive) */
537 s4 handlerpc; /* pc of exception handler */
538 classinfo *catchtype; /* catchtype of exception (NULL == catchall) */
542 /* methodinfo static info ****************************************************/
543 typedef struct xtainfo {
544 s4 XTAmethodUsed; /* XTA if used in callgraph - not used /used */
545 classSet *XTAclassSet; /* method class type set */
546 /*classSet *PartClassSet */ /* method class type set */
548 classSetNode *paramClassSet; /* cone set of methods parameters */
550 methSet *calls; /* methods this method calls */
551 methSet *calledBy; /* methods that call this method */
552 methSet *marked; //not in Dez /* methods that marked by this method */
554 fldSet *fldsUsed; /* fields used by this method */
555 /*methSetNode *interfaceCalls*/ /* methods this method calls as interface */
556 bool chgdSinceLastParse; /* Changed since last parse ? */
560 /* lineinfo *****************************************************************/
566 /* methodinfo *****************************************************************/
568 struct methodinfo { /* method structure */
569 s4 flags; /* ACC flags */
570 utf *name; /* name of method */
571 utf *descriptor; /* JavaVM descriptor string of method */
572 s4 returntype; /* only temporary valid, return type */
573 classinfo *returnclass; /* pointer to classinfo for the rtn type */ /*XTA*/
574 s4 paramcount; /* only temporary valid, parameter count */
575 u1 *paramtypes; /* only temporary valid, parameter types */
576 classinfo **paramclass; /* pointer to classinfo for a parameter */ /*XTA*/
578 classinfo *class; /* class, the method belongs to */
579 s4 vftblindex; /* index of method in virtual function table
580 (if it is a virtual method) */
581 s4 maxstack; /* maximum stack depth of method */
582 s4 maxlocals; /* maximum number of local variables */
583 s4 jcodelength; /* length of JavaVM code */
584 u1 *jcode; /* pointer to JavaVM code */
586 s4 exceptiontablelength;/* exceptiontable length */
587 exceptiontable *exceptiontable; /* the exceptiontable */
589 u2 thrownexceptionscount; /*number of exceptions declared to be thrown by a method*/
590 classinfo **thrownexceptions; /*array of classinfos of declared exceptions*/
592 u2 linenumbercount; /*number of linenumber attributes*/
593 lineinfo *linenumbers; /*array of lineinfo items (start_pc,line_number)*/
595 u1 *stubroutine; /* stub for compiling or calling natives */
596 s4 mcodelength; /* legth of generated machine code */
597 u1 *mcode; /* pointer to machine code */
598 u1 *entrypoint; /* entry point in machine code */
603 s4 methodUsed; /* marked (might be used later) /not used /used */
604 s4 monoPoly; /* call is mono or poly or unknown */ /*RT stats */
605 /* should # method def'd and used be kept after static parse (will it be used?) */
611 /* innerclassinfo *************************************************************/
613 typedef struct innerclassinfo {
614 classinfo *inner_class; /* inner class pointer */
615 classinfo *outer_class; /* outer class pointer */
616 utf *name; /* innerclass name */
617 s4 flags; /* ACC flags */
621 /* classinfo ******************************************************************/
623 struct classinfo { /* class structure */
624 java_objectheader header; /* classes are also objects */
625 java_objectarray* signers;
626 struct java_security_ProtectionDomain* pd;
627 struct java_lang_VMClass* vmClass;
628 struct java_lang_reflect_Constructor* constructor;
631 s4 initializing_thread; /* gnu classpath */
632 s4 erroneous_state; /* gnu classpath */
633 struct gnu_classpath_RawData* vmData; /* gnu classpath */
635 s4 flags; /* ACC flags */
636 utf *name; /* class name */
638 s4 cpcount; /* number of entries in constant pool */
639 u1 *cptags; /* constant pool tags */
640 voidptr *cpinfos; /* pointer to constant pool info structures */
642 classinfo *super; /* super class pointer */
643 classinfo *sub; /* sub class pointer */
644 classinfo *nextsub; /* pointer to next class in sub class list */
646 s4 interfacescount; /* number of interfaces */
647 classinfo **interfaces; /* pointer to interfaces */
649 s4 fieldscount; /* number of fields */
650 fieldinfo *fields; /* field table */
652 s4 methodscount; /* number of methods */
653 methodinfo *methods; /* method table */
655 listnode listnode; /* linkage */
657 bool initialized; /* true, if class already initialised */
658 bool loaded; /* true, if class already loaded */
659 bool linked; /* true, if class already linked */
660 s4 index; /* hierarchy depth (classes) or index
662 s4 instancesize; /* size of an instance of this class */
663 #ifdef SIZE_FROM_CLASSINFO
664 s4 alignedsize; /* size of an instance, aligned to the
665 allocation size on the heap */
668 vftbl *vftbl; /* pointer to virtual function table */
670 methodinfo *finalizer; /* finalizer method */
672 u2 innerclasscount; /* number of inner classes */
673 innerclassinfo *innerclass;
675 classinfo *hashlink; /* link for external hash chain */
676 bool classvftbl; /* has its own copy of the Class vtbl */
678 s4 classUsed; /* 0= not used 1 = used CO-RT */
680 classSetNode *impldBy; /* implemented by class set */
681 utf *packagename; /* full name of the package */
682 utf *sourcefile; /* classfile name containing this class */
683 java_objectheader *classloader; /* 0 for bootstrap classloader */
686 /* check if class is an array class. Only use for linked classes! */
687 #define CLASS_IS_ARRAY(clsinfo) ((clsinfo)->vftbl->arraydesc != NULL)
690 /* virtual function table ******************************************************
692 The vtbl has a bidirectional layout with open ends at both sides.
693 interfacetablelength gives the number of entries of the interface table at
694 the start of the vftbl. The vftbl pointer points to &interfacetable[0].
695 vftbllength gives the number of entries of table at the end of the vftbl.
697 runtime type check (checkcast):
699 Different methods are used for runtime type check depending on the
700 argument of checkcast/instanceof.
702 A check against a class is implemented via relative numbering on the class
703 hierachy tree. The tree is numbered in a depth first traversal setting
704 the base field and the diff field. The diff field gets the result of
705 (high - base) so that a range check can be implemented by an unsigned
706 compare. A sub type test is done by checking the inclusion of base of
707 the sub class in the range of the superclass.
709 A check against an interface is implemented via the interfacevftbl. If the
710 interfacevftbl contains a nonnull value a class is a subclass of this
715 Like standard virtual methods interface methods are called using
716 virtual function tables. All interfaces are numbered sequentially
717 (starting with zero). For each class there exist an interface table
718 of virtual function tables for each implemented interface. The length
719 of the interface table is determined by the highest number of an
720 implemented interface.
722 The following example assumes a class which implements interface 0 and 3:
724 interfacetablelength = 4
727 +-----------+ | method 2 |---> method z
728 | class | | method 1 |---> method y
729 +-----------+ | method 0 |---> method x
730 | ivftbl 0 |----------> +----------+
731 vftblptr ---> +-----------+
732 | ivftbl -1 |--> NULL +----------+
733 | ivftbl -2 |--> NULL | method 1 |---> method x
734 | ivftbl -3 |-----+ | method 0 |---> method a
735 +-----------+ +----> +----------+
742 interfacevftbllength ---> +---------------+
744 *******************************************************************************/
747 methodptr *interfacetable[1]; /* interface table (access via macro) */
749 classinfo *class; /* class, the vtbl belongs to */
751 arraydescriptor *arraydesc; /* for array classes, otherwise NULL */
753 s4 vftbllength; /* virtual function table length */
754 s4 interfacetablelength; /* interface table length */
756 s4 baseval; /* base for runtime type check */
757 /* (-index for interfaces) */
758 s4 diffval; /* high - base for runtime type check */
760 s4 *interfacevftbllength; /* length of interface vftbls */
762 methodptr table[1]; /* class vftbl */
765 #define VFTBLINTERFACETABLE(v,i) (v)->interfacetable[-i]
768 /* arraydescriptor ************************************************************
770 For every array class an arraydescriptor is allocated which
771 describes the array class.
772 The arraydescriptor is referenced from the vftbl of the array
775 *******************************************************************************/
777 struct arraydescriptor {
778 vftbl *componentvftbl; /* vftbl of the component type, NULL for primit. */
779 vftbl *elementvftbl; /* vftbl of the element type, NULL for primitive */
780 short arraytype; /* ARRAYTYPE_* constant */
781 short dimension; /* dimension of the array (always >= 1) */
782 s4 dataoffset; /* offset of the array data from object pointer */
783 s4 componentsize; /* size of a component in bytes */
784 short elementtype; /* ARRAYTYPE_* constant */
788 /* references to some system classes ******************************************/
790 extern classinfo *class_java_lang_Object;
791 extern classinfo *class_java_lang_String;
792 extern classinfo *class_java_lang_Throwable;
793 extern classinfo *class_java_lang_Cloneable;
794 extern classinfo *class_java_io_Serializable;
795 extern classinfo *class_java_lang_ClassCastException;
796 extern classinfo *class_java_lang_NullPointerException;
797 extern classinfo *class_java_lang_ArrayIndexOutOfBoundsException;
798 extern classinfo *class_java_lang_NegativeArraySizeException;
799 extern classinfo *class_java_lang_OutOfMemoryError;
800 extern classinfo *class_java_lang_ArithmeticException;
801 extern classinfo *class_java_lang_ArrayStoreException;
802 extern classinfo *class_java_lang_ThreadDeath;
804 /* pseudo classes for the type checker ****************************************/
807 * pseudo_class_Arraystub
808 * (extends Object implements Cloneable, java.io.Serializable)
810 * If two arrays of incompatible component types are merged,
811 * the resulting reference has no accessible components.
812 * The result does, however, implement the interfaces Cloneable
813 * and java.io.Serializable. This pseudo class is used internally
814 * to represent such results. (They are *not* considered arrays!)
818 * This pseudo class is used internally to represent the
823 * This pseudo class is used internally to represent the
824 * the 'uninitialized object' type.
827 extern classinfo *pseudo_class_Arraystub;
828 extern classinfo *pseudo_class_Null;
829 extern classinfo *pseudo_class_New;
830 extern vftbl *pseudo_class_Arraystub_vftbl;
832 extern utf *array_packagename;
835 /* instances of some system classes *******************************************/
837 extern java_objectheader *proto_java_lang_ClassCastException;
838 extern java_objectheader *proto_java_lang_NullPointerException;
839 extern java_objectheader *proto_java_lang_ArrayIndexOutOfBoundsException;
840 extern java_objectheader *proto_java_lang_NegativeArraySizeException;
841 extern java_objectheader *proto_java_lang_OutOfMemoryError;
842 extern java_objectheader *proto_java_lang_ArithmeticException;
843 extern java_objectheader *proto_java_lang_ArrayStoreException;
844 extern java_objectheader *proto_java_lang_ThreadDeath;
847 /* flag variables *************************************************************/
849 extern bool compileall;
850 extern bool runverbose;
851 extern bool verboseexception;
853 extern bool opt_rt; /* Rapid Type Analysis for better inlining CO-RT*/
854 extern bool opt_xta; /* X Type Analysis for better inlining CO-XTA*/
855 extern bool opt_vta; /* Variable Type Analysis for better inlining CO-VTA*/
856 extern bool opt_verify; /* true if classfiles should be verified */
857 #ifdef TYPECHECK_VERBOSE_OPT
858 extern bool typecheckverbose;
861 /*extern int pClassHeir;*/
862 /*extern int pCallgraph;*/
863 /*extern int pOpcodes;*/
864 /*extern int pStats;*/
866 /*extern void RT_jit_parse(methodinfo *m);*/
869 /* statistic variables ********************************************************/
871 extern int count_class_infos;
872 extern int count_const_pool_len;
873 extern int count_vftbl_len;
874 extern int count_utf_len;
875 extern int count_all_methods;
876 extern int count_vmcode_len;
877 extern int count_extable_len;
878 extern int count_class_loads;
879 extern int count_class_inits;
880 extern int count_utf_new;
881 extern int count_utf_new_found;
884 /* table of primitive types ***************************************************/
886 /* This array can be indexed by the PRIMITIVETYPE_ and ARRAYTYPE_
887 * constants (except ARRAYTYPE_OBJECT).
889 extern primitivetypeinfo primitivetype_table[PRIMITIVETYPE_COUNT];
892 /* macros for descriptor parsing **********************************************/
894 /* SKIP_FIELDDESCRIPTOR:
895 * utf_ptr must point to the first character of a field descriptor.
896 * After the macro call utf_ptr points to the first character after
897 * the field descriptor.
899 * CAUTION: This macro does not check for an unexpected end of the
900 * descriptor. Better use SKIP_FIELDDESCRIPTOR_SAFE.
902 #define SKIP_FIELDDESCRIPTOR(utf_ptr) \
903 do { while (*(utf_ptr)=='[') (utf_ptr)++; \
904 if (*(utf_ptr)++=='L') \
905 while(*(utf_ptr)++ != ';') /* skip */; } while(0)
907 /* SKIP_FIELDDESCRIPTOR_SAFE:
908 * utf_ptr must point to the first character of a field descriptor.
909 * After the macro call utf_ptr points to the first character after
910 * the field descriptor.
913 * utf_ptr....points to first char of descriptor
914 * end_ptr....points to first char after the end of the string
915 * errorflag..must be initialized (to false) by the caller!
917 * utf_ptr....points to first char after the descriptor
918 * errorflag..set to true if the string ended unexpectedly
920 #define SKIP_FIELDDESCRIPTOR_SAFE(utf_ptr,end_ptr,errorflag) \
921 do { while ((utf_ptr) != (end_ptr) && *(utf_ptr)=='[') (utf_ptr)++; \
922 if ((utf_ptr) == (end_ptr)) \
923 (errorflag) = true; \
925 if (*(utf_ptr)++=='L') { \
926 while((utf_ptr) != (end_ptr) && *(utf_ptr)++ != ';') \
928 if ((utf_ptr)[-1] != ';') \
929 (errorflag) = true; }} while(0)
932 /* Synchronization ************************************************************/
934 #if defined(USE_THREADS) && defined(NATIVE_THREADS)
935 extern pthread_mutex_t compiler_mutex;
936 extern int cast_counter;
943 #endif /* _GLOBAL_H */
947 * These are local overrides for various environment variables in Emacs.
948 * Please do not remove this and leave it at the end of the file, where
949 * Emacs will automagically detect them.
950 * ---------------------------------------------------------------------
953 * indent-tabs-mode: t