1 /* global.h - global definitions
3 Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
4 R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
5 C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
6 Institut f. Computersprachen - TU Wien
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
35 $Id: global.h 1735 2004-12-07 14:33:27Z twisti $
47 /* resolve typedef cycles *****************************************************/
49 typedef struct utf utf;
50 typedef struct literalstring literalstring;
51 typedef struct java_objectheader java_objectheader;
52 typedef struct classinfo classinfo;
53 typedef struct _vftbl vftbl_t;
54 typedef u1* methodptr;
55 typedef struct fieldinfo fieldinfo;
56 typedef struct exceptiontable exceptiontable;
57 typedef struct methodinfo methodinfo;
58 typedef struct lineinfo lineinfo;
59 typedef struct arraydescriptor arraydescriptor;
62 /* additional data types ******************************************************/
64 typedef void *voidptr; /* generic pointer */
65 typedef void (*functionptr) (); /* generic function pointer */
67 typedef int bool; /* boolean data type */
73 /* additional includes ********************************************************/
75 #include "toolbox/list.h"
76 #include "vm/jit/inline/sets.h"
79 #if defined(USE_THREADS) && defined(NATIVE_THREADS)
81 #include <semaphore.h>
84 /* define path to rt.jar plus ending : ****************************************/
86 #define CACAO_LIBRARY_PATH "/jre/lib/"ARCH_DIR"/"
87 #define CACAO_RT_JAR_PATH "/jre/lib/rt.jar:"
90 #define STATISTICS /* if enabled collects program statistics */
93 * SIZE_FROM_CLASSINFO toggles between the bitmap_based and the new method
94 * of determining the sizes of objects on the heap.
96 #define SIZE_FROM_CLASSINFO
99 * CACAO_TYPECHECK activates typechecking (part of bytecode verification)
101 #define CACAO_TYPECHECK
104 * TYPECHECK_STACK_COMPCAT activates full checking of computational
105 * categories for stack manipulations (POP,POP2,SWAP,DUP,DUP2,DUP_X1,
106 * DUP2_X1,DUP_X2,DUP2_X2).
108 #define TYPECHECK_STACK_COMPCAT
111 * Macros for configuration of the typechecking code
113 * TYPECHECK_STATISTICS activates gathering statistical information.
114 * TYPEINFO_DEBUG activates debug checks and debug helpers in typeinfo.c
115 * TYPECHECK_DEBUG activates debug checks in typecheck.c
116 * TYPEINFO_DEBUG_TEST activates the typeinfo test at startup.
117 * TYPECHECK_VERBOSE_IMPORTANT activates important debug messages
118 * TYPECHECK_VERBOSE activates all debug messages
120 #ifdef CACAO_TYPECHECK
121 /*#define TYPECHECK_STATISTICS
122 #define TYPEINFO_DEBUG
123 #define TYPECHECK_DEBUG
124 #define TYPEINFO_DEBUG_TEST
125 #define TYPECHECK_VERBOSE
126 #define TYPECHECK_VERBOSE_IMPORTANT*/
127 #if defined(TYPECHECK_VERBOSE) || defined(TYPECHECK_VERBOSE_IMPORTANT)
128 #define TYPECHECK_VERBOSE_OPT
133 /* immediate data union */
146 #define PRIMITIVETYPE_COUNT 9 /* number of primitive types */
148 /* CAUTION: Don't change the numerical values! These constants are
149 * used as indices into the primitive type table.
151 #define PRIMITIVETYPE_INT 0
152 #define PRIMITIVETYPE_LONG 1
153 #define PRIMITIVETYPE_FLOAT 2
154 #define PRIMITIVETYPE_DOUBLE 3
155 #define PRIMITIVETYPE_BYTE 4
156 #define PRIMITIVETYPE_CHAR 5
157 #define PRIMITIVETYPE_SHORT 6
158 #define PRIMITIVETYPE_BOOLEAN 7
159 #define PRIMITIVETYPE_VOID 8
162 #define MAX_ALIGN 8 /* most generic alignment for JavaVM values */
165 /* basic data types ***********************************************************/
167 /* CAUTION: jit/jit.h relies on these numerical values! */
168 #define TYPE_INT 0 /* the JavaVM types must numbered in the */
169 #define TYPE_LONG 1 /* same order as the ICMD_Ixxx to ICMD_Axxx */
170 #define TYPE_FLOAT 2 /* instructions (LOAD and STORE) */
171 #define TYPE_DOUBLE 3 /* integer, long, float, double, address */
172 #define TYPE_ADDRESS 4 /* all other types can be numbered arbitrarly */
177 /* Java class file constants **************************************************/
179 #define MAGIC 0xcafebabe
180 #define MINOR_VERSION 0
181 #define MAJOR_VERSION 48
183 #define CONSTANT_Class 7
184 #define CONSTANT_Fieldref 9
185 #define CONSTANT_Methodref 10
186 #define CONSTANT_InterfaceMethodref 11
187 #define CONSTANT_String 8
188 #define CONSTANT_Integer 3
189 #define CONSTANT_Float 4
190 #define CONSTANT_Long 5
191 #define CONSTANT_Double 6
192 #define CONSTANT_NameAndType 12
193 #define CONSTANT_Utf8 1
195 #define CONSTANT_UNUSED 0
197 #define ACC_PUBLIC 0x0001
198 #define ACC_PRIVATE 0x0002
199 #define ACC_PROTECTED 0x0004
200 #define ACC_STATIC 0x0008
201 #define ACC_FINAL 0x0010
202 #define ACC_SUPER 0x0020
203 #define ACC_SYNCHRONIZED 0x0020
204 #define ACC_VOLATILE 0x0040
205 #define ACC_TRANSIENT 0x0080
206 #define ACC_NATIVE 0x0100
207 #define ACC_INTERFACE 0x0200
208 #define ACC_ABSTRACT 0x0400
209 #define ACC_STRICT 0x0800
212 /* constant pool entries *******************************************************
214 All constant pool entries need a data structure which contain the entrys
215 value. In some cases this structure exist already, in the remaining cases
216 this structure must be generated:
218 kind structure generated?
219 ----------------------------------------------------------------------
220 CONSTANT_Class classinfo no
221 CONSTANT_Fieldref constant_FMIref yes
222 CONSTANT_Methodref constant_FMIref yes
223 CONSTANT_InterfaceMethodref constant_FMIref yes
224 CONSTANT_String unicode no
225 CONSTANT_Integer constant_integer yes
226 CONSTANT_Float constant_float yes
227 CONSTANT_Long constant_long yes
228 CONSTANT_Double constant_double yes
229 CONSTANT_NameAndType constant_nameandtype yes
230 CONSTANT_Utf8 unicode no
233 *******************************************************************************/
235 /* data structures for hashtables ********************************************
238 All utf-symbols, javastrings and classes are stored in global hashtables,
239 so every symbol exists only once. Equal symbols have identical pointers.
240 The functions for adding hashtable elements search the table for the
241 element with the specified name/text and return it on success. Otherwise a
242 new hashtable element is created.
244 The hashtables use external linking for handling collisions. The hashtable
245 structure contains a pointer <ptr> to the array of hashtable slots. The
246 number of hashtable slots and therefore the size of this array is specified
247 by the element <size> of hashtable structure. <entries> contains the number
248 of all hashtable elements stored in the table, including those in the
250 The hashtable element structures (utf, literalstring, classinfo) contain
251 both a pointer to the next hashtable element as a link for the external hash
252 chain and the key of the element. The key is computed from the text of
253 the string or the classname by using up to 8 characters.
255 If the number of entries in the hashtable exceeds twice the size of the
256 hashtableslot-array it is supposed that the average length of the
257 external chains has reached a value beyond 2. Therefore the functions for
258 adding hashtable elements (utf_new, class_new, literalstring_new) double
259 the hashtableslot-array. In this restructuring process all elements have
260 to be inserted into the new hashtable and new external chains must be built.
263 example for the layout of a hashtable:
265 hashtable.ptr--> +-------------------+
269 +-------------------+ +-------------------+ +-------------------+
270 | hashtable element |-->| hashtable element |-->| hashtable element |-->NULL
271 +-------------------+ +-------------------+ +-------------------+
272 | hashtable element |
273 +-------------------+ +-------------------+
274 | hashtable element |-->| hashtable element |-->NULL
275 +-------------------+ +-------------------+
276 | hashtable element |-->NULL
277 +-------------------+
281 +-------------------+
286 /* data structure for utf8 symbols ********************************************/
289 utf *hashlink; /* link for external hash chain */
290 int blength; /* text length in bytes */
291 char *text; /* pointer to text */
295 /* data structure of internal javastrings stored in global hashtable **********/
297 struct literalstring {
298 literalstring *hashlink; /* link for external hash chain */
299 java_objectheader *string;
303 /* data structure for storing information needed for a stacktrace across native functions*/
305 typedef struct native_stackframeinfo native_stackframeinfo;
307 struct native_stackframeinfo {
308 void *oldThreadspecificHeadValue;
309 void **addressOfThreadspecificHead;
314 void *beginOfJavaStackframe; /*only used if != 0*/
315 void *returnToFromNative;
318 void *returnFromNative;
319 void *addrReturnFromNative;
321 struct native_stackframeinfo *next;
322 struct native_stackframeinfo *prev;
327 typedef struct stacktraceelement stacktraceelement;
329 struct stacktraceelement {
339 typedef struct stackTraceBuffer stackTraceBuffer;
341 struct stackTraceBuffer {
343 stacktraceelement *start;
350 /* data structure for calls from c code to java methods */
352 struct jni_callblock {
357 typedef struct jni_callblock jni_callblock;
360 /* data structure for accessing hashtables ************************************/
364 u4 entries; /* number of entries in the table */
365 void **ptr; /* pointer to hashtable */
369 /* data structures of remaining constant pool entries *************************/
371 typedef struct { /* Fieldref, Methodref and InterfaceMethodref */
372 classinfo *class; /* class containing this field/method/interface */
373 utf *name; /* field/method/interface name */
374 utf *descriptor; /* field/method/interface type descriptor string */
378 typedef struct { /* Integer */
383 typedef struct { /* Float */
388 typedef struct { /* Long */
393 typedef struct { /* Double */
398 typedef struct { /* NameAndType (Field or Method) */
399 utf *name; /* field/method name */
400 utf *descriptor; /* field/method type descriptor string */
401 } constant_nameandtype;
404 /* data structures of the runtime system **************************************/
406 /* objects *********************************************************************
408 All objects (and arrays) which resides on the heap need the following
409 header at the beginning of the data structure.
412 struct java_objectheader { /* header for all objects */
413 vftbl_t *vftbl; /* pointer to virtual function table */
414 #if defined(USE_THREADS) && defined(NATIVE_THREADS)
421 /* arrays **********************************************************************
423 All arrays are objects (they need the object header with a pointer
424 to a vftbl (array class table). There is one class for each array
425 type. The array type is described by an arraydescriptor struct
426 which is referenced by the vftbl.
429 /* CAUTION: Don't change the numerical values! These constants (with
430 * the exception of ARRAYTYPE_OBJECT) are used as indices in the
431 * primitive type table.
433 #define ARRAYTYPE_INT PRIMITIVETYPE_INT
434 #define ARRAYTYPE_LONG PRIMITIVETYPE_LONG
435 #define ARRAYTYPE_FLOAT PRIMITIVETYPE_FLOAT
436 #define ARRAYTYPE_DOUBLE PRIMITIVETYPE_DOUBLE
437 #define ARRAYTYPE_BYTE PRIMITIVETYPE_BYTE
438 #define ARRAYTYPE_CHAR PRIMITIVETYPE_CHAR
439 #define ARRAYTYPE_SHORT PRIMITIVETYPE_SHORT
440 #define ARRAYTYPE_BOOLEAN PRIMITIVETYPE_BOOLEAN
441 #define ARRAYTYPE_OBJECT PRIMITIVETYPE_VOID /* don't use as index! */
443 typedef struct java_arrayheader { /* header for all arrays */
444 java_objectheader objheader; /* object header */
445 s4 size; /* array size */
446 #ifdef SIZE_FROM_CLASSINFO
447 s4 alignedsize; /* phil */
453 /* structs for all kinds of arrays ********************************************/
455 typedef struct java_chararray {
456 java_arrayheader header;
460 typedef struct java_floatheader {
461 java_arrayheader header;
465 typedef struct java_doublearray {
466 java_arrayheader header;
470 /* booleanarray and bytearray need identical memory layout (access methods
471 use the same machine code */
473 typedef struct java_booleanarray {
474 java_arrayheader header;
478 typedef struct java_bytearray {
479 java_arrayheader header;
483 typedef struct java_shortarray {
484 java_arrayheader header;
488 typedef struct java_intarray {
489 java_arrayheader header;
493 typedef struct java_longarray {
494 java_arrayheader header;
498 /* objectarray and arrayarray need identical memory layout (access methods
499 use the same machine code */
501 typedef struct java_objectarray {
502 java_arrayheader header;
503 java_objectheader *data[1];
507 /* structure for primitive classes ********************************************/
509 typedef struct primitivetypeinfo {
510 classinfo *class_wrap; /* class for wrapping primitive type */
511 classinfo *class_primitive; /* primitive class */
512 char *wrapname; /* name of class for wrapping */
513 char typesig; /* one character type signature */
514 char *name; /* name of primitive class */
515 char *arrayname; /* name of primitive array class */
516 classinfo *arrayclass; /* primitive array class */
517 vftbl_t *arrayvftbl; /* vftbl of primitive array class */
521 /* field, method and class structures *****************************************/
523 typedef struct xtafldinfo {
525 classinfo *fldClassType;
526 classSet *XTAclassSet; /* field class type set */
530 /* fieldinfo ******************************************************************/
532 struct fieldinfo { /* field of a class */
533 s4 flags; /* ACC flags */
534 s4 type; /* basic data type */
535 utf *name; /* name of field */
536 utf *descriptor; /* JavaVM descriptor string of field */
538 s4 offset; /* offset from start of object (instance variables) */
540 imm_union value; /* storage for static values (class variables) */
542 classinfo *class; /* needed by typechecker. Could be optimized */
543 /* away by using constant_FMIref instead of */
544 /* fieldinfo throughout the compiler. */
550 /* exceptiontable *************************************************************/
552 struct exceptiontable { /* exceptiontable entry in a method */
553 s4 startpc; /* start pc of guarded area (inclusive) */
554 struct basicblock *start;
556 s4 endpc; /* end pc of guarded area (exklusive) */
557 struct basicblock *end;
559 s4 handlerpc; /* pc of exception handler */
560 struct basicblock *handler;
562 classinfo *catchtype; /* catchtype of exception (NULL == catchall) */
563 exceptiontable *next; /* used to build a list of exception when */
564 /* loops are copied */
565 exceptiontable *down; /* instead of the old array, a list is used */
569 /* methodinfo static info ****************************************************/
571 typedef struct xtainfo {
572 s4 XTAmethodUsed; /* XTA if used in callgraph - not used /used */
573 classSet *XTAclassSet; /* method class type set */
574 /*classSet *PartClassSet */ /* method class type set */
576 classSetNode *paramClassSet; /* cone set of methods parameters */
578 methSet *calls; /* methods this method calls */
579 methSet *calledBy; /* methods that call this method */
580 methSet *marked; /*not in Dez*/ /* methods that marked by this method */
582 fldSet *fldsUsed; /* fields used by this method */
583 /*methSetNode *interfaceCalls*/ /* methods this method calls as interface */
584 bool chgdSinceLastParse; /* Changed since last parse ? */
588 /* lineinfo *****************************************************************/
596 /* methodinfo *****************************************************************/
598 struct methodinfo { /* method structure */
599 java_objectheader header; /* we need this in jit's monitorenter */
600 s4 flags; /* ACC flags */
601 utf *name; /* name of method */
602 utf *descriptor; /* JavaVM descriptor string of method */
603 s4 returntype; /* only temporary valid, return type */
604 classinfo *returnclass; /* pointer to classinfo for the rtn type */ /*XTA*/
605 s4 paramcount; /* only temporary valid, parameter count */
606 u1 *paramtypes; /* only temporary valid, parameter types */
607 classinfo **paramclass; /* pointer to classinfo for a parameter */ /*XTA*/
609 bool isleafmethod; /* does method call subroutines */
611 classinfo *class; /* class, the method belongs to */
612 s4 vftblindex; /* index of method in virtual function */
613 /* table (if it is a virtual method) */
614 s4 maxstack; /* maximum stack depth of method */
615 s4 maxlocals; /* maximum number of local variables */
616 s4 jcodelength; /* length of JavaVM code */
617 u1 *jcode; /* pointer to JavaVM code */
619 s4 basicblockcount; /* number of basic blocks */
620 struct basicblock *basicblocks; /* points to basic block array */
621 s4 *basicblockindex; /* a table which contains for every byte */
622 /* of JavaVM code a basic block index if */
623 /* at this byte is the start of a basic */
626 s4 instructioncount; /* number of JavaVM instructions */
627 struct instruction *instructions; /* points to intermediate code instructions */
629 s4 stackcount; /* number of stack elements */
630 struct stackelement *stack; /* points to intermediate code instructions */
632 s4 exceptiontablelength;/* exceptiontable length */
633 exceptiontable *exceptiontable; /* the exceptiontable */
635 u2 thrownexceptionscount;/* number of exceptions attribute */
636 classinfo **thrownexceptions; /* checked exceptions a method may throw */
638 u2 linenumbercount; /* number of linenumber attributes */
639 lineinfo *linenumbers; /* array of lineinfo items */
641 int c_debug_nr; /* a counter to number all BB with an */
644 u1 *stubroutine; /* stub for compiling or calling natives */
645 s4 mcodelength; /* legth of generated machine code */
646 functionptr mcode; /* pointer to machine code */
647 functionptr entrypoint; /* entry point in machine code */
652 s4 methodUsed; /* marked (might be used later) /not used /used */
653 s4 monoPoly; /* call is mono or poly or unknown */ /*RT stats */
654 /* should # method def'd and used be kept after static parse (will it be used?) */
657 s4 nativelyoverloaded; /* used in header.c and only valid there */
661 /* innerclassinfo *************************************************************/
663 typedef struct innerclassinfo {
664 classinfo *inner_class; /* inner class pointer */
665 classinfo *outer_class; /* outer class pointer */
666 utf *name; /* innerclass name */
667 s4 flags; /* ACC flags */
671 /* classinfo ******************************************************************/
673 struct classinfo { /* class structure */
674 java_objectheader header; /* classes are also objects */
675 java_objectarray* signers;
676 struct java_security_ProtectionDomain* pd;
677 struct java_lang_VMClass* vmClass;
678 struct java_lang_reflect_Constructor* constructor;
680 s4 initializing_thread; /* gnu classpath */
681 s4 erroneous_state; /* gnu classpath */
682 struct gnu_classpath_RawData* vmData; /* gnu classpath */
684 s4 flags; /* ACC flags */
685 utf *name; /* class name */
687 s4 cpcount; /* number of entries in constant pool */
688 u1 *cptags; /* constant pool tags */
689 voidptr *cpinfos; /* pointer to constant pool info structures */
691 classinfo *super; /* super class pointer */
692 classinfo *sub; /* sub class pointer */
693 classinfo *nextsub; /* pointer to next class in sub class list */
695 s4 interfacescount; /* number of interfaces */
696 classinfo **interfaces; /* pointer to interfaces */
698 s4 fieldscount; /* number of fields */
699 fieldinfo *fields; /* field table */
701 s4 methodscount; /* number of methods */
702 methodinfo *methods; /* method table */
704 listnode listnode; /* linkage */
706 bool initialized; /* true, if class already initialized */
707 bool initializing; /* flag for the compiler */
708 bool loaded; /* true, if class already loaded */
709 bool linked; /* true, if class already linked */
710 s4 index; /* hierarchy depth (classes) or index */
712 s4 instancesize; /* size of an instance of this class */
713 #ifdef SIZE_FROM_CLASSINFO
714 s4 alignedsize; /* size of an instance, aligned to the */
715 /* allocation size on the heap */
718 vftbl_t *vftbl; /* pointer to virtual function table */
720 methodinfo *finalizer; /* finalizer method */
722 u2 innerclasscount; /* number of inner classes */
723 innerclassinfo *innerclass;
725 classinfo *hashlink; /* link for external hash chain */
726 bool classvftbl; /* has its own copy of the Class vtbl */
728 s4 classUsed; /* 0= not used 1 = used CO-RT */
730 classSetNode *impldBy; /* implemented by class set */
731 utf *packagename; /* full name of the package */
732 utf *sourcefile; /* classfile name containing this class */
733 java_objectheader *classloader; /* NULL for bootstrap classloader */
736 /* check if class is an array class. Only use for linked classes! */
737 #define CLASS_IS_ARRAY(clsinfo) ((clsinfo)->vftbl->arraydesc != NULL)
740 /* virtual function table ******************************************************
742 The vtbl has a bidirectional layout with open ends at both sides.
743 interfacetablelength gives the number of entries of the interface table at
744 the start of the vftbl. The vftbl pointer points to &interfacetable[0].
745 vftbllength gives the number of entries of table at the end of the vftbl.
747 runtime type check (checkcast):
749 Different methods are used for runtime type check depending on the
750 argument of checkcast/instanceof.
752 A check against a class is implemented via relative numbering on the class
753 hierachy tree. The tree is numbered in a depth first traversal setting
754 the base field and the diff field. The diff field gets the result of
755 (high - base) so that a range check can be implemented by an unsigned
756 compare. A sub type test is done by checking the inclusion of base of
757 the sub class in the range of the superclass.
759 A check against an interface is implemented via the interfacevftbl. If the
760 interfacevftbl contains a nonnull value a class is a subclass of this
765 Like standard virtual methods interface methods are called using
766 virtual function tables. All interfaces are numbered sequentially
767 (starting with zero). For each class there exist an interface table
768 of virtual function tables for each implemented interface. The length
769 of the interface table is determined by the highest number of an
770 implemented interface.
772 The following example assumes a class which implements interface 0 and 3:
774 interfacetablelength = 4
777 +-----------+ | method 2 |---> method z
778 | class | | method 1 |---> method y
779 +-----------+ | method 0 |---> method x
780 | ivftbl 0 |----------> +----------+
781 vftblptr ---> +-----------+
782 | ivftbl -1 |--> NULL +----------+
783 | ivftbl -2 |--> NULL | method 1 |---> method x
784 | ivftbl -3 |-----+ | method 0 |---> method a
785 +-----------+ +----> +----------+
792 interfacevftbllength ---> +---------------+
794 *******************************************************************************/
797 methodptr *interfacetable[1]; /* interface table (access via macro) */
799 classinfo *class; /* class, the vtbl belongs to */
801 arraydescriptor *arraydesc; /* for array classes, otherwise NULL */
803 s4 vftbllength; /* virtual function table length */
804 s4 interfacetablelength; /* interface table length */
806 s4 baseval; /* base for runtime type check */
807 /* (-index for interfaces) */
808 s4 diffval; /* high - base for runtime type check */
810 s4 *interfacevftbllength; /* length of interface vftbls */
812 methodptr table[1]; /* class vftbl */
815 #define VFTBLINTERFACETABLE(v,i) (v)->interfacetable[-i]
818 /* arraydescriptor ************************************************************
820 For every array class an arraydescriptor is allocated which
821 describes the array class.
822 The arraydescriptor is referenced from the vftbl of the array
825 *******************************************************************************/
827 struct arraydescriptor {
828 vftbl_t *componentvftbl; /* vftbl of the component type, NULL for primit. */
829 vftbl_t *elementvftbl; /* vftbl of the element type, NULL for primitive */
830 s2 arraytype; /* ARRAYTYPE_* constant */
831 s2 dimension; /* dimension of the array (always >= 1) */
832 s4 dataoffset; /* offset of the array data from object pointer */
833 s4 componentsize; /* size of a component in bytes */
834 s2 elementtype; /* ARRAYTYPE_* constant */
838 /* flag variables *************************************************************/
840 extern bool cacao_initializing;
842 #ifdef TYPECHECK_VERBOSE_OPT
843 extern bool typecheckverbose;
846 /*extern int pClassHeir;*/
847 /*extern int pCallgraph;*/
848 /*extern int pOpcodes;*/
849 /*extern int pStats;*/
851 /*extern void RT_jit_parse(methodinfo *m);*/
854 /* table of primitive types ***************************************************/
856 /* This array can be indexed by the PRIMITIVETYPE_ and ARRAYTYPE_
857 * constants (except ARRAYTYPE_OBJECT).
859 extern primitivetypeinfo primitivetype_table[PRIMITIVETYPE_COUNT];
862 /* macros for descriptor parsing **********************************************/
864 /* SKIP_FIELDDESCRIPTOR:
865 * utf_ptr must point to the first character of a field descriptor.
866 * After the macro call utf_ptr points to the first character after
867 * the field descriptor.
869 * CAUTION: This macro does not check for an unexpected end of the
870 * descriptor. Better use SKIP_FIELDDESCRIPTOR_SAFE.
872 #define SKIP_FIELDDESCRIPTOR(utf_ptr) \
873 do { while (*(utf_ptr)=='[') (utf_ptr)++; \
874 if (*(utf_ptr)++=='L') \
875 while(*(utf_ptr)++ != ';') /* skip */; } while(0)
877 /* SKIP_FIELDDESCRIPTOR_SAFE:
878 * utf_ptr must point to the first character of a field descriptor.
879 * After the macro call utf_ptr points to the first character after
880 * the field descriptor.
883 * utf_ptr....points to first char of descriptor
884 * end_ptr....points to first char after the end of the string
885 * errorflag..must be initialized (to false) by the caller!
887 * utf_ptr....points to first char after the descriptor
888 * errorflag..set to true if the string ended unexpectedly
890 #define SKIP_FIELDDESCRIPTOR_SAFE(utf_ptr,end_ptr,errorflag) \
891 do { while ((utf_ptr) != (end_ptr) && *(utf_ptr)=='[') (utf_ptr)++; \
892 if ((utf_ptr) == (end_ptr)) \
893 (errorflag) = true; \
895 if (*(utf_ptr)++=='L') { \
896 while((utf_ptr) != (end_ptr) && *(utf_ptr)++ != ';') \
898 if ((utf_ptr)[-1] != ';') \
899 (errorflag) = true; }} while(0)
902 /* Synchronization ************************************************************/
904 #if defined(USE_THREADS) && defined(NATIVE_THREADS)
907 void compiler_lock();
908 void compiler_unlock();
911 #endif /* _GLOBAL_H */
915 * These are local overrides for various environment variables in Emacs.
916 * Please do not remove this and leave it at the end of the file, where
917 * Emacs will automagically detect them.
918 * ---------------------------------------------------------------------
921 * indent-tabs-mode: t