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 1621 2004-11-30 13:06:55Z twisti $
46 /* resolve typedef cycles *****************************************************/
48 typedef struct utf utf;
49 typedef struct literalstring literalstring;
50 typedef struct java_objectheader java_objectheader;
51 typedef struct classinfo classinfo;
52 typedef struct _vftbl vftbl_t;
53 typedef u1* methodptr;
54 typedef struct fieldinfo fieldinfo;
55 typedef struct exceptiontable exceptiontable;
56 typedef struct methodinfo methodinfo;
57 typedef struct lineinfo lineinfo;
58 typedef struct arraydescriptor arraydescriptor;
61 /* additional data types ******************************************************/
63 typedef void *voidptr; /* generic pointer */
64 typedef void (*functionptr) (); /* generic function pointer */
66 typedef int bool; /* boolean data type */
72 /* additional includes ********************************************************/
74 #include "toolbox/list.h"
75 #include "vm/jit/inline/sets.h"
78 #if defined(USE_THREADS) && defined(NATIVE_THREADS)
80 #include <semaphore.h>
83 #define STATISTICS /* if enabled collects program statistics */
86 * SIZE_FROM_CLASSINFO toggles between the bitmap_based and the new method
87 * of determining the sizes of objects on the heap.
89 #define SIZE_FROM_CLASSINFO
92 * CACAO_TYPECHECK activates typechecking (part of bytecode verification)
94 #define CACAO_TYPECHECK
97 * TYPECHECK_STACK_COMPCAT activates full checking of computational
98 * categories for stack manipulations (POP,POP2,SWAP,DUP,DUP2,DUP_X1,
99 * DUP2_X1,DUP_X2,DUP2_X2).
101 #define TYPECHECK_STACK_COMPCAT
104 * Macros for configuration of the typechecking code
106 * TYPECHECK_STATISTICS activates gathering statistical information.
107 * TYPEINFO_DEBUG activates debug checks and debug helpers in typeinfo.c
108 * TYPECHECK_DEBUG activates debug checks in typecheck.c
109 * TYPEINFO_DEBUG_TEST activates the typeinfo test at startup.
110 * TYPECHECK_VERBOSE_IMPORTANT activates important debug messages
111 * TYPECHECK_VERBOSE activates all debug messages
113 #ifdef CACAO_TYPECHECK
114 /*#define TYPECHECK_STATISTICS
115 #define TYPEINFO_DEBUG
116 #define TYPECHECK_DEBUG
117 #define TYPEINFO_DEBUG_TEST
118 #define TYPECHECK_VERBOSE
119 #define TYPECHECK_VERBOSE_IMPORTANT*/
120 #if defined(TYPECHECK_VERBOSE) || defined(TYPECHECK_VERBOSE_IMPORTANT)
121 #define TYPECHECK_VERBOSE_OPT
126 /* immediate data union */
139 #define PRIMITIVETYPE_COUNT 9 /* number of primitive types */
141 /* CAUTION: Don't change the numerical values! These constants are
142 * used as indices into the primitive type table.
144 #define PRIMITIVETYPE_INT 0
145 #define PRIMITIVETYPE_LONG 1
146 #define PRIMITIVETYPE_FLOAT 2
147 #define PRIMITIVETYPE_DOUBLE 3
148 #define PRIMITIVETYPE_BYTE 4
149 #define PRIMITIVETYPE_CHAR 5
150 #define PRIMITIVETYPE_SHORT 6
151 #define PRIMITIVETYPE_BOOLEAN 7
152 #define PRIMITIVETYPE_VOID 8
155 #define MAX_ALIGN 8 /* most generic alignment for JavaVM values */
158 /* basic data types ***********************************************************/
160 /* CAUTION: jit/jit.h relies on these numerical values! */
161 #define TYPE_INT 0 /* the JavaVM types must numbered in the */
162 #define TYPE_LONG 1 /* same order as the ICMD_Ixxx to ICMD_Axxx */
163 #define TYPE_FLOAT 2 /* instructions (LOAD and STORE) */
164 #define TYPE_DOUBLE 3 /* integer, long, float, double, address */
165 #define TYPE_ADDRESS 4 /* all other types can be numbered arbitrarly */
170 /* Java class file constants **************************************************/
172 #define MAGIC 0xcafebabe
173 #define MINOR_VERSION 0
174 #define MAJOR_VERSION 48
176 #define CONSTANT_Class 7
177 #define CONSTANT_Fieldref 9
178 #define CONSTANT_Methodref 10
179 #define CONSTANT_InterfaceMethodref 11
180 #define CONSTANT_String 8
181 #define CONSTANT_Integer 3
182 #define CONSTANT_Float 4
183 #define CONSTANT_Long 5
184 #define CONSTANT_Double 6
185 #define CONSTANT_NameAndType 12
186 #define CONSTANT_Utf8 1
188 #define CONSTANT_UNUSED 0
190 #define ACC_PUBLIC 0x0001
191 #define ACC_PRIVATE 0x0002
192 #define ACC_PROTECTED 0x0004
193 #define ACC_STATIC 0x0008
194 #define ACC_FINAL 0x0010
195 #define ACC_SUPER 0x0020
196 #define ACC_SYNCHRONIZED 0x0020
197 #define ACC_VOLATILE 0x0040
198 #define ACC_TRANSIENT 0x0080
199 #define ACC_NATIVE 0x0100
200 #define ACC_INTERFACE 0x0200
201 #define ACC_ABSTRACT 0x0400
202 #define ACC_STRICT 0x0800
205 /* constant pool entries *******************************************************
207 All constant pool entries need a data structure which contain the entrys
208 value. In some cases this structure exist already, in the remaining cases
209 this structure must be generated:
211 kind structure generated?
212 ----------------------------------------------------------------------
213 CONSTANT_Class classinfo no
214 CONSTANT_Fieldref constant_FMIref yes
215 CONSTANT_Methodref constant_FMIref yes
216 CONSTANT_InterfaceMethodref constant_FMIref yes
217 CONSTANT_String unicode no
218 CONSTANT_Integer constant_integer yes
219 CONSTANT_Float constant_float yes
220 CONSTANT_Long constant_long yes
221 CONSTANT_Double constant_double yes
222 CONSTANT_NameAndType constant_nameandtype yes
223 CONSTANT_Utf8 unicode no
226 *******************************************************************************/
228 /* data structures for hashtables ********************************************
231 All utf-symbols, javastrings and classes are stored in global hashtables,
232 so every symbol exists only once. Equal symbols have identical pointers.
233 The functions for adding hashtable elements search the table for the
234 element with the specified name/text and return it on success. Otherwise a
235 new hashtable element is created.
237 The hashtables use external linking for handling collisions. The hashtable
238 structure contains a pointer <ptr> to the array of hashtable slots. The
239 number of hashtable slots and therefore the size of this array is specified
240 by the element <size> of hashtable structure. <entries> contains the number
241 of all hashtable elements stored in the table, including those in the
243 The hashtable element structures (utf, literalstring, classinfo) contain
244 both a pointer to the next hashtable element as a link for the external hash
245 chain and the key of the element. The key is computed from the text of
246 the string or the classname by using up to 8 characters.
248 If the number of entries in the hashtable exceeds twice the size of the
249 hashtableslot-array it is supposed that the average length of the
250 external chains has reached a value beyond 2. Therefore the functions for
251 adding hashtable elements (utf_new, class_new, literalstring_new) double
252 the hashtableslot-array. In this restructuring process all elements have
253 to be inserted into the new hashtable and new external chains must be built.
256 example for the layout of a hashtable:
258 hashtable.ptr--> +-------------------+
262 +-------------------+ +-------------------+ +-------------------+
263 | hashtable element |-->| hashtable element |-->| hashtable element |-->NULL
264 +-------------------+ +-------------------+ +-------------------+
265 | hashtable element |
266 +-------------------+ +-------------------+
267 | hashtable element |-->| hashtable element |-->NULL
268 +-------------------+ +-------------------+
269 | hashtable element |-->NULL
270 +-------------------+
274 +-------------------+
279 /* data structure for utf8 symbols ********************************************/
282 utf *hashlink; /* link for external hash chain */
283 int blength; /* text length in bytes */
284 char *text; /* pointer to text */
288 /* data structure of internal javastrings stored in global hashtable **********/
290 struct literalstring {
291 literalstring *hashlink; /* link for external hash chain */
292 java_objectheader *string;
296 /* data structure for storing information needed for a stacktrace across native functions*/
297 struct native_stackframeinfo {
298 void *oldThreadspecificHeadValue;
299 void **addressOfThreadspecificHead;
301 void *returnToFromNative;
304 void *returnFromNative;
305 void *addrReturnFromNative;
307 struct native_stackframeinfo *next;
308 struct native_stackframeinfo *prev;
312 typedef struct native_stackframeinfo native_stackframeinfo;
314 struct stacktraceelement {
323 typedef struct stacktraceelement stacktraceelement;
325 /* data structure for calls from c code to java methods */
327 struct jni_callblock {
332 typedef struct jni_callblock jni_callblock;
335 /* data structure for accessing hashtables ************************************/
339 u4 entries; /* number of entries in the table */
340 void **ptr; /* pointer to hashtable */
344 /* data structures of remaining constant pool entries *************************/
346 typedef struct { /* Fieldref, Methodref and InterfaceMethodref */
347 classinfo *class; /* class containing this field/method/interface */
348 utf *name; /* field/method/interface name */
349 utf *descriptor; /* field/method/interface type descriptor string */
353 typedef struct { /* Integer */
358 typedef struct { /* Float */
363 typedef struct { /* Long */
368 typedef struct { /* Double */
373 typedef struct { /* NameAndType (Field or Method) */
374 utf *name; /* field/method name */
375 utf *descriptor; /* field/method type descriptor string */
376 } constant_nameandtype;
379 /* data structures of the runtime system **************************************/
381 /* objects *********************************************************************
383 All objects (and arrays) which resides on the heap need the following
384 header at the beginning of the data structure.
387 struct java_objectheader { /* header for all objects */
388 vftbl_t *vftbl; /* pointer to virtual function table */
389 #if defined(USE_THREADS) && defined(NATIVE_THREADS)
396 /* arrays **********************************************************************
398 All arrays are objects (they need the object header with a pointer
399 to a vftbl (array class table). There is one class for each array
400 type. The array type is described by an arraydescriptor struct
401 which is referenced by the vftbl.
404 /* CAUTION: Don't change the numerical values! These constants (with
405 * the exception of ARRAYTYPE_OBJECT) are used as indices in the
406 * primitive type table.
408 #define ARRAYTYPE_INT PRIMITIVETYPE_INT
409 #define ARRAYTYPE_LONG PRIMITIVETYPE_LONG
410 #define ARRAYTYPE_FLOAT PRIMITIVETYPE_FLOAT
411 #define ARRAYTYPE_DOUBLE PRIMITIVETYPE_DOUBLE
412 #define ARRAYTYPE_BYTE PRIMITIVETYPE_BYTE
413 #define ARRAYTYPE_CHAR PRIMITIVETYPE_CHAR
414 #define ARRAYTYPE_SHORT PRIMITIVETYPE_SHORT
415 #define ARRAYTYPE_BOOLEAN PRIMITIVETYPE_BOOLEAN
416 #define ARRAYTYPE_OBJECT PRIMITIVETYPE_VOID /* don't use as index! */
418 typedef struct java_arrayheader { /* header for all arrays */
419 java_objectheader objheader; /* object header */
420 s4 size; /* array size */
421 #ifdef SIZE_FROM_CLASSINFO
422 s4 alignedsize; /* phil */
428 /* structs for all kinds of arrays ********************************************/
430 typedef struct java_chararray {
431 java_arrayheader header;
435 typedef struct java_floatheader {
436 java_arrayheader header;
440 typedef struct java_doublearray {
441 java_arrayheader header;
445 /* booleanarray and bytearray need identical memory layout (access methods
446 use the same machine code */
448 typedef struct java_booleanarray {
449 java_arrayheader header;
453 typedef struct java_bytearray {
454 java_arrayheader header;
458 typedef struct java_shortarray {
459 java_arrayheader header;
463 typedef struct java_intarray {
464 java_arrayheader header;
468 typedef struct java_longarray {
469 java_arrayheader header;
473 /* objectarray and arrayarray need identical memory layout (access methods
474 use the same machine code */
476 typedef struct java_objectarray {
477 java_arrayheader header;
478 java_objectheader *data[1];
482 /* structure for primitive classes ********************************************/
484 typedef struct primitivetypeinfo {
485 classinfo *class_wrap; /* class for wrapping primitive type */
486 classinfo *class_primitive; /* primitive class */
487 char *wrapname; /* name of class for wrapping */
488 char typesig; /* one character type signature */
489 char *name; /* name of primitive class */
490 char *arrayname; /* name of primitive array class */
491 classinfo *arrayclass; /* primitive array class */
492 vftbl_t *arrayvftbl; /* vftbl of primitive array class */
496 /* field, method and class structures *****************************************/
498 typedef struct xtafldinfo {
500 classinfo *fldClassType;
501 classSet *XTAclassSet; /* field class type set */
505 /* fieldinfo ******************************************************************/
507 struct fieldinfo { /* field of a class */
508 s4 flags; /* ACC flags */
509 s4 type; /* basic data type */
510 utf *name; /* name of field */
511 utf *descriptor; /* JavaVM descriptor string of field */
513 s4 offset; /* offset from start of object (instance variables) */
515 imm_union value; /* storage for static values (class variables) */
517 classinfo *class; /* needed by typechecker. Could be optimized */
518 /* away by using constant_FMIref instead of */
519 /* fieldinfo throughout the compiler. */
525 /* exceptiontable *************************************************************/
527 struct exceptiontable { /* exceptiontable entry in a method */
528 s4 startpc; /* start pc of guarded area (inclusive) */
529 struct basicblock *start;
531 s4 endpc; /* end pc of guarded area (exklusive) */
532 struct basicblock *end;
534 s4 handlerpc; /* pc of exception handler */
535 struct basicblock *handler;
537 classinfo *catchtype; /* catchtype of exception (NULL == catchall) */
538 exceptiontable *next; /* used to build a list of exception when */
539 /* loops are copied */
540 exceptiontable *down; /* instead of the old array, a list is used */
544 /* methodinfo static info ****************************************************/
546 typedef struct xtainfo {
547 s4 XTAmethodUsed; /* XTA if used in callgraph - not used /used */
548 classSet *XTAclassSet; /* method class type set */
549 /*classSet *PartClassSet */ /* method class type set */
551 classSetNode *paramClassSet; /* cone set of methods parameters */
553 methSet *calls; /* methods this method calls */
554 methSet *calledBy; /* methods that call this method */
555 methSet *marked; /*not in Dez*/ /* methods that marked by this method */
557 fldSet *fldsUsed; /* fields used by this method */
558 /*methSetNode *interfaceCalls*/ /* methods this method calls as interface */
559 bool chgdSinceLastParse; /* Changed since last parse ? */
563 /* lineinfo *****************************************************************/
571 /* methodinfo *****************************************************************/
573 struct methodinfo { /* method structure */
574 java_objectheader header; /* we need this in jit's monitorenter */
575 s4 flags; /* ACC flags */
576 utf *name; /* name of method */
577 utf *descriptor; /* JavaVM descriptor string of method */
578 s4 returntype; /* only temporary valid, return type */
579 classinfo *returnclass; /* pointer to classinfo for the rtn type */ /*XTA*/
580 s4 paramcount; /* only temporary valid, parameter count */
581 u1 *paramtypes; /* only temporary valid, parameter types */
582 classinfo **paramclass; /* pointer to classinfo for a parameter */ /*XTA*/
584 bool isleafmethod; /* does method call subroutines */
586 classinfo *class; /* class, the method belongs to */
587 s4 vftblindex; /* index of method in virtual function */
588 /* table (if it is a virtual method) */
589 s4 maxstack; /* maximum stack depth of method */
590 s4 maxlocals; /* maximum number of local variables */
591 s4 jcodelength; /* length of JavaVM code */
592 u1 *jcode; /* pointer to JavaVM code */
594 s4 basicblockcount; /* number of basic blocks */
595 struct basicblock *basicblocks; /* points to basic block array */
596 s4 *basicblockindex; /* a table which contains for every byte */
597 /* of JavaVM code a basic block index if */
598 /* at this byte is the start of a basic */
601 s4 instructioncount; /* number of JavaVM instructions */
602 struct instruction *instructions; /* points to intermediate code instructions */
604 s4 stackcount; /* number of stack elements */
605 struct stackelement *stack; /* points to intermediate code instructions */
607 s4 exceptiontablelength;/* exceptiontable length */
608 exceptiontable *exceptiontable; /* the exceptiontable */
610 u2 thrownexceptionscount;/* number of exceptions attribute */
611 classinfo **thrownexceptions; /* checked exceptions a method may throw */
613 u2 linenumbercount; /* number of linenumber attributes */
614 lineinfo *linenumbers; /* array of lineinfo items */
616 int c_debug_nr; /* a counter to number all BB with an */
619 u1 *stubroutine; /* stub for compiling or calling natives */
620 s4 mcodelength; /* legth of generated machine code */
621 functionptr mcode; /* pointer to machine code */
622 functionptr entrypoint; /* entry point in machine code */
627 s4 methodUsed; /* marked (might be used later) /not used /used */
628 s4 monoPoly; /* call is mono or poly or unknown */ /*RT stats */
629 /* should # method def'd and used be kept after static parse (will it be used?) */
632 s4 nativelyoverloaded; /* used in header.c and only valid there */
636 /* innerclassinfo *************************************************************/
638 typedef struct innerclassinfo {
639 classinfo *inner_class; /* inner class pointer */
640 classinfo *outer_class; /* outer class pointer */
641 utf *name; /* innerclass name */
642 s4 flags; /* ACC flags */
646 /* classinfo ******************************************************************/
648 struct classinfo { /* class structure */
649 java_objectheader header; /* classes are also objects */
650 java_objectarray* signers;
651 struct java_security_ProtectionDomain* pd;
652 struct java_lang_VMClass* vmClass;
653 struct java_lang_reflect_Constructor* constructor;
655 s4 initializing_thread; /* gnu classpath */
656 s4 erroneous_state; /* gnu classpath */
657 struct gnu_classpath_RawData* vmData; /* gnu classpath */
659 s4 flags; /* ACC flags */
660 utf *name; /* class name */
662 s4 cpcount; /* number of entries in constant pool */
663 u1 *cptags; /* constant pool tags */
664 voidptr *cpinfos; /* pointer to constant pool info structures */
666 classinfo *super; /* super class pointer */
667 classinfo *sub; /* sub class pointer */
668 classinfo *nextsub; /* pointer to next class in sub class list */
670 s4 interfacescount; /* number of interfaces */
671 classinfo **interfaces; /* pointer to interfaces */
673 s4 fieldscount; /* number of fields */
674 fieldinfo *fields; /* field table */
676 s4 methodscount; /* number of methods */
677 methodinfo *methods; /* method table */
679 listnode listnode; /* linkage */
681 bool initialized; /* true, if class already initialized */
682 bool initializing; /* flag for the compiler */
683 bool loaded; /* true, if class already loaded */
684 bool linked; /* true, if class already linked */
685 s4 index; /* hierarchy depth (classes) or index */
687 s4 instancesize; /* size of an instance of this class */
688 #ifdef SIZE_FROM_CLASSINFO
689 s4 alignedsize; /* size of an instance, aligned to the */
690 /* allocation size on the heap */
693 vftbl_t *vftbl; /* pointer to virtual function table */
695 methodinfo *finalizer; /* finalizer method */
697 u2 innerclasscount; /* number of inner classes */
698 innerclassinfo *innerclass;
700 classinfo *hashlink; /* link for external hash chain */
701 bool classvftbl; /* has its own copy of the Class vtbl */
703 s4 classUsed; /* 0= not used 1 = used CO-RT */
705 classSetNode *impldBy; /* implemented by class set */
706 utf *packagename; /* full name of the package */
707 utf *sourcefile; /* classfile name containing this class */
708 java_objectheader *classloader; /* NULL for bootstrap classloader */
711 /* check if class is an array class. Only use for linked classes! */
712 #define CLASS_IS_ARRAY(clsinfo) ((clsinfo)->vftbl->arraydesc != NULL)
715 /* virtual function table ******************************************************
717 The vtbl has a bidirectional layout with open ends at both sides.
718 interfacetablelength gives the number of entries of the interface table at
719 the start of the vftbl. The vftbl pointer points to &interfacetable[0].
720 vftbllength gives the number of entries of table at the end of the vftbl.
722 runtime type check (checkcast):
724 Different methods are used for runtime type check depending on the
725 argument of checkcast/instanceof.
727 A check against a class is implemented via relative numbering on the class
728 hierachy tree. The tree is numbered in a depth first traversal setting
729 the base field and the diff field. The diff field gets the result of
730 (high - base) so that a range check can be implemented by an unsigned
731 compare. A sub type test is done by checking the inclusion of base of
732 the sub class in the range of the superclass.
734 A check against an interface is implemented via the interfacevftbl. If the
735 interfacevftbl contains a nonnull value a class is a subclass of this
740 Like standard virtual methods interface methods are called using
741 virtual function tables. All interfaces are numbered sequentially
742 (starting with zero). For each class there exist an interface table
743 of virtual function tables for each implemented interface. The length
744 of the interface table is determined by the highest number of an
745 implemented interface.
747 The following example assumes a class which implements interface 0 and 3:
749 interfacetablelength = 4
752 +-----------+ | method 2 |---> method z
753 | class | | method 1 |---> method y
754 +-----------+ | method 0 |---> method x
755 | ivftbl 0 |----------> +----------+
756 vftblptr ---> +-----------+
757 | ivftbl -1 |--> NULL +----------+
758 | ivftbl -2 |--> NULL | method 1 |---> method x
759 | ivftbl -3 |-----+ | method 0 |---> method a
760 +-----------+ +----> +----------+
767 interfacevftbllength ---> +---------------+
769 *******************************************************************************/
772 methodptr *interfacetable[1]; /* interface table (access via macro) */
774 classinfo *class; /* class, the vtbl belongs to */
776 arraydescriptor *arraydesc; /* for array classes, otherwise NULL */
778 s4 vftbllength; /* virtual function table length */
779 s4 interfacetablelength; /* interface table length */
781 s4 baseval; /* base for runtime type check */
782 /* (-index for interfaces) */
783 s4 diffval; /* high - base for runtime type check */
785 s4 *interfacevftbllength; /* length of interface vftbls */
787 methodptr table[1]; /* class vftbl */
790 #define VFTBLINTERFACETABLE(v,i) (v)->interfacetable[-i]
793 /* arraydescriptor ************************************************************
795 For every array class an arraydescriptor is allocated which
796 describes the array class.
797 The arraydescriptor is referenced from the vftbl of the array
800 *******************************************************************************/
802 struct arraydescriptor {
803 vftbl_t *componentvftbl; /* vftbl of the component type, NULL for primit. */
804 vftbl_t *elementvftbl; /* vftbl of the element type, NULL for primitive */
805 s2 arraytype; /* ARRAYTYPE_* constant */
806 s2 dimension; /* dimension of the array (always >= 1) */
807 s4 dataoffset; /* offset of the array data from object pointer */
808 s4 componentsize; /* size of a component in bytes */
809 s2 elementtype; /* ARRAYTYPE_* constant */
813 /* flag variables *************************************************************/
815 extern bool cacao_initializing;
817 #ifdef TYPECHECK_VERBOSE_OPT
818 extern bool typecheckverbose;
821 /*extern int pClassHeir;*/
822 /*extern int pCallgraph;*/
823 /*extern int pOpcodes;*/
824 /*extern int pStats;*/
826 /*extern void RT_jit_parse(methodinfo *m);*/
829 /* table of primitive types ***************************************************/
831 /* This array can be indexed by the PRIMITIVETYPE_ and ARRAYTYPE_
832 * constants (except ARRAYTYPE_OBJECT).
834 extern primitivetypeinfo primitivetype_table[PRIMITIVETYPE_COUNT];
837 /* macros for descriptor parsing **********************************************/
839 /* SKIP_FIELDDESCRIPTOR:
840 * utf_ptr must point to the first character of a field descriptor.
841 * After the macro call utf_ptr points to the first character after
842 * the field descriptor.
844 * CAUTION: This macro does not check for an unexpected end of the
845 * descriptor. Better use SKIP_FIELDDESCRIPTOR_SAFE.
847 #define SKIP_FIELDDESCRIPTOR(utf_ptr) \
848 do { while (*(utf_ptr)=='[') (utf_ptr)++; \
849 if (*(utf_ptr)++=='L') \
850 while(*(utf_ptr)++ != ';') /* skip */; } while(0)
852 /* SKIP_FIELDDESCRIPTOR_SAFE:
853 * utf_ptr must point to the first character of a field descriptor.
854 * After the macro call utf_ptr points to the first character after
855 * the field descriptor.
858 * utf_ptr....points to first char of descriptor
859 * end_ptr....points to first char after the end of the string
860 * errorflag..must be initialized (to false) by the caller!
862 * utf_ptr....points to first char after the descriptor
863 * errorflag..set to true if the string ended unexpectedly
865 #define SKIP_FIELDDESCRIPTOR_SAFE(utf_ptr,end_ptr,errorflag) \
866 do { while ((utf_ptr) != (end_ptr) && *(utf_ptr)=='[') (utf_ptr)++; \
867 if ((utf_ptr) == (end_ptr)) \
868 (errorflag) = true; \
870 if (*(utf_ptr)++=='L') { \
871 while((utf_ptr) != (end_ptr) && *(utf_ptr)++ != ';') \
873 if ((utf_ptr)[-1] != ';') \
874 (errorflag) = true; }} while(0)
877 /* Synchronization ************************************************************/
879 #if defined(USE_THREADS) && defined(NATIVE_THREADS)
882 void compiler_lock();
883 void compiler_unlock();
886 #endif /* _GLOBAL_H */
890 * These are local overrides for various environment variables in Emacs.
891 * Please do not remove this and leave it at the end of the file, where
892 * Emacs will automagically detect them.
893 * ---------------------------------------------------------------------
896 * indent-tabs-mode: t