1 /* src/vm/jit/builtin.cpp - functions for unsupported operations
3 Copyright (C) 1996-2005, 2006, 2007, 2008
4 CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
6 This file is part of CACAO.
8 This program is free software; you can redistribute it and/or
9 modify it under the terms of the GNU General Public License as
10 published by the Free Software Foundation; either version 2, or (at
11 your option) any later version.
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 Contains C functions for JavaVM Instructions that cannot be
24 translated to machine language directly. Consequently, the
25 generated machine code for these instructions contains function
26 calls instead of machine instructions, using the C calling
45 #include "fdlibm/fdlibm.h"
46 #if defined(__CYGWIN__) && defined(Bias)
51 #include "mm/memory.h"
53 #include "native/llni.h"
55 #include "threads/lock.hpp"
56 #include "threads/mutex.hpp"
57 #include "threads/thread.hpp"
59 #include "toolbox/logging.h"
60 #include "toolbox/util.h"
62 #include "vm/array.hpp"
63 #include "vm/jit/builtin.hpp"
64 #include "vm/class.hpp"
65 #include "vm/cycles-stats.h"
66 #include "vm/exceptions.hpp"
67 #include "vm/global.h"
68 #include "vm/globals.hpp"
69 #include "vm/initialize.hpp"
70 #include "vm/linker.h"
71 #include "vm/loader.hpp"
72 #include "vm/options.h"
73 #include "vm/primitive.hpp"
74 #include "vm/rt-timing.h"
75 #include "vm/string.hpp"
77 #include "vm/jit/asmpart.h"
78 #include "vm/jit/stubs.hpp"
79 #include "vm/jit/trace.hpp"
81 #if defined(ENABLE_VMLOG)
82 #include <vmlog_cacao.h>
86 /* include builtin tables *****************************************************/
88 #include "vm/jit/builtintable.inc"
91 CYCLES_STATS_DECLARE(builtin_new ,100,5)
92 CYCLES_STATS_DECLARE(builtin_overhead , 80,1)
95 /*============================================================================*/
96 /* BUILTIN TABLE MANAGEMENT FUNCTIONS */
97 /*============================================================================*/
99 /* builtintable_init ***********************************************************
101 Parse the descriptors of builtin functions and create the parsed
104 *******************************************************************************/
106 static bool builtintable_init(void)
108 descriptor_pool *descpool;
109 builtintable_entry *bte;
112 // Create new dump memory area.
115 /* create a new descriptor pool */
117 descpool = descriptor_pool_new(class_java_lang_Object);
119 /* add some entries we need */
121 if (!descriptor_pool_add_class(descpool, utf_java_lang_Object))
124 if (!descriptor_pool_add_class(descpool, utf_java_lang_Class))
127 /* first add all descriptors to the pool */
129 for (bte = builtintable_internal; bte->fp != NULL; bte++) {
130 bte->name = utf_new_char(bte->cname);
131 bte->descriptor = utf_new_char(bte->cdescriptor);
133 if (!descriptor_pool_add(descpool, bte->descriptor, NULL))
137 for (bte = builtintable_automatic; bte->fp != NULL; bte++) {
138 bte->descriptor = utf_new_char(bte->cdescriptor);
140 if (!descriptor_pool_add(descpool, bte->descriptor, NULL))
144 for (bte = builtintable_function; bte->fp != NULL; bte++) {
145 bte->classname = utf_new_char(bte->cclassname);
146 bte->name = utf_new_char(bte->cname);
147 bte->descriptor = utf_new_char(bte->cdescriptor);
149 if (!descriptor_pool_add(descpool, bte->descriptor, NULL))
153 /* create the class reference table */
155 (void) descriptor_pool_create_classrefs(descpool, NULL);
157 /* allocate space for the parsed descriptors */
159 descriptor_pool_alloc_parsed_descriptors(descpool);
161 /* Now parse all descriptors. NOTE: builtin-functions are treated
162 like static methods (no `this' pointer). */
164 for (bte = builtintable_internal; bte->fp != NULL; bte++) {
166 descriptor_pool_parse_method_descriptor(descpool,
168 ACC_STATIC | ACC_METHOD_BUILTIN,
171 /* generate a builtin stub if we need one */
173 if (bte->flags & BUILTINTABLE_FLAG_STUB) {
174 m = method_new_builtin(bte);
175 BuiltinStub::generate(m, bte);
179 for (bte = builtintable_automatic; bte->fp != NULL; bte++) {
181 descriptor_pool_parse_method_descriptor(descpool,
183 ACC_STATIC | ACC_METHOD_BUILTIN,
186 /* no stubs should be needed for this table */
188 assert(!bte->flags & BUILTINTABLE_FLAG_STUB);
191 for (bte = builtintable_function; bte->fp != NULL; bte++) {
193 descriptor_pool_parse_method_descriptor(descpool,
195 ACC_STATIC | ACC_METHOD_BUILTIN,
198 /* generate a builtin stub if we need one */
200 if (bte->flags & BUILTINTABLE_FLAG_STUB) {
201 m = method_new_builtin(bte);
202 BuiltinStub::generate(m, bte);
210 /* builtintable_comparator *****************************************************
212 qsort comparator for the automatic builtin table.
214 *******************************************************************************/
216 static int builtintable_comparator(const void *a, const void *b)
218 builtintable_entry *bte1;
219 builtintable_entry *bte2;
221 bte1 = (builtintable_entry *) a;
222 bte2 = (builtintable_entry *) b;
224 return (bte1->opcode < bte2->opcode) ? -1 : (bte1->opcode > bte2->opcode);
228 /* builtintable_sort_automatic *************************************************
230 Sorts the automatic builtin table.
232 *******************************************************************************/
234 static void builtintable_sort_automatic(void)
238 /* calculate table size statically (`- 1' comment see builtintable.inc) */
240 entries = sizeof(builtintable_automatic) / sizeof(builtintable_entry) - 1;
242 qsort(builtintable_automatic, entries, sizeof(builtintable_entry),
243 builtintable_comparator);
247 /* builtin_init ****************************************************************
249 Initialize the global table of builtin functions.
251 *******************************************************************************/
253 bool builtin_init(void)
255 TRACESUBSYSTEMINITIALIZATION("builtin_init");
257 /* initialize the builtin tables */
259 if (!builtintable_init())
262 /* sort builtin tables */
264 builtintable_sort_automatic();
270 /* builtintable_get_internal ***************************************************
272 Finds an entry in the builtintable for internal functions and
273 returns the a pointer to the structure.
275 *******************************************************************************/
277 builtintable_entry *builtintable_get_internal(functionptr fp)
279 builtintable_entry *bte;
281 for (bte = builtintable_internal; bte->fp != NULL; bte++) {
290 /* builtintable_get_automatic **************************************************
292 Finds an entry in the builtintable for functions which are replaced
293 automatically and returns the a pointer to the structure.
295 *******************************************************************************/
297 builtintable_entry *builtintable_get_automatic(s4 opcode)
299 builtintable_entry *first;
300 builtintable_entry *last;
301 builtintable_entry *middle;
305 /* calculate table size statically (`- 1' comment see builtintable.inc) */
307 entries = sizeof(builtintable_automatic) / sizeof(builtintable_entry) - 1;
309 first = builtintable_automatic;
310 last = builtintable_automatic + entries;
312 while (entries > 0) {
314 middle = first + half;
316 if (middle->opcode < opcode) {
324 return (first != last ? first : NULL);
328 /* builtintable_replace_function ***********************************************
332 *******************************************************************************/
334 #if defined(ENABLE_JIT)
335 bool builtintable_replace_function(void *iptr_)
338 builtintable_entry *bte;
341 iptr = (instruction *) iptr_; /* twisti will kill me ;) */
343 /* get name and descriptor of the function */
346 case ICMD_INVOKESTATIC:
347 /* The instruction MUST be resolved, otherwise we run into
348 lazy loading troubles. Anyway, we should/can only replace
349 very VM-close functions. */
351 if (INSTRUCTION_IS_UNRESOLVED(iptr))
354 mr = iptr->sx.s23.s3.fmiref;
361 /* search the function table */
363 for (bte = builtintable_function; bte->fp != NULL; bte++) {
364 if ((METHODREF_CLASSNAME(mr) == bte->classname) &&
365 (mr->name == bte->name) &&
366 (mr->descriptor == bte->descriptor)) {
368 /* set the values in the instruction */
370 iptr->opc = bte->opcode;
371 iptr->sx.s23.s3.bte = bte;
373 if (bte->flags & BUILTINTABLE_FLAG_EXCEPTION)
374 iptr->flags.bits |= INS_FLAG_CHECK;
376 iptr->flags.bits &= ~INS_FLAG_CHECK;
384 #endif /* defined(ENABLE_JIT) */
387 /*============================================================================*/
388 /* INTERNAL BUILTIN FUNCTIONS */
389 /*============================================================================*/
391 /* builtin_instanceof **********************************************************
393 Checks if an object is an instance of some given class (or subclass
394 of that class). If class is an interface, checks if the interface
398 1......o is an instance of class or implements the interface
399 0......otherwise or if o == NULL
401 NOTE: This builtin can be called from NATIVE code only.
403 *******************************************************************************/
405 bool builtin_instanceof(java_handle_t *o, classinfo *c)
412 LLNI_class_get(o, oc);
414 return class_isanysubclass(oc, c);
419 /* builtin_checkcast ***********************************************************
421 The same as builtin_instanceof but with the exception
422 that 1 is returned when (o == NULL).
424 NOTE: This builtin can be called from NATIVE code only.
426 *******************************************************************************/
428 bool builtin_checkcast(java_handle_t *o, classinfo *c)
435 LLNI_class_get(o, oc);
437 if (class_isanysubclass(oc, c))
444 /* builtin_descriptorscompatible ***********************************************
446 Checks if two array type descriptors are assignment compatible.
449 1......target = desc is possible
452 *******************************************************************************/
454 static bool builtin_descriptorscompatible(arraydescriptor *desc, arraydescriptor *target)
459 if (desc->arraytype != target->arraytype)
462 if (desc->arraytype != ARRAYTYPE_OBJECT)
465 /* {both arrays are arrays of references} */
467 if (desc->dimension == target->dimension) {
468 if (!desc->elementvftbl)
470 /* an array which contains elements of interface types is
471 allowed to be casted to Object (JOWENN)*/
473 if ((desc->elementvftbl->baseval < 0) &&
474 (target->elementvftbl->baseval == 1))
477 return class_isanysubclass(desc->elementvftbl->clazz,
478 target->elementvftbl->clazz);
481 if (desc->dimension < target->dimension)
484 /* {desc has higher dimension than target} */
486 return class_isanysubclass(pseudo_class_Arraystub,
487 target->elementvftbl->clazz);
491 /* builtin_arraycheckcast ******************************************************
493 Checks if an object is really a subtype of the requested array
494 type. The object has to be an array to begin with. For simple
495 arrays (int, short, double, etc.) the types have to match exactly.
496 For arrays of objects, the type of elements in the array has to be
497 a subtype (or the same type) of the requested element type. For
498 arrays of arrays (which in turn can again be arrays of arrays), the
499 types at the lowest level have to satisfy the corresponding sub
502 NOTE: This is a FAST builtin and can be called from JIT code only.
504 *******************************************************************************/
506 bool builtin_fast_arraycheckcast(java_object_t *o, classinfo *targetclass)
508 arraydescriptor *desc;
513 desc = o->vftbl->arraydesc;
518 return builtin_descriptorscompatible(desc, targetclass->vftbl->arraydesc);
522 /* builtin_fast_arrayinstanceof ************************************************
524 NOTE: This is a FAST builtin and can be called from JIT code only.
526 *******************************************************************************/
528 bool builtin_fast_arrayinstanceof(java_object_t *o, classinfo *targetclass)
533 return builtin_fast_arraycheckcast(o, targetclass);
537 /* builtin_arrayinstanceof *****************************************************
539 NOTE: This builtin can be called from NATIVE code only.
541 *******************************************************************************/
543 bool builtin_arrayinstanceof(java_handle_t *h, classinfo *targetclass)
549 result = builtin_fast_arrayinstanceof(LLNI_UNWRAP(h), targetclass);
557 /* builtin_throw_exception *****************************************************
559 Sets the exception pointer with the thrown exception and prints some
560 debugging information.
562 NOTE: This is a FAST builtin and can be called from JIT code,
563 or from asm_vm_call_method.
565 *******************************************************************************/
567 void *builtin_throw_exception(java_object_t *xptr)
570 /* print exception trace */
572 if (opt_TraceExceptions)
573 trace_exception_builtin(xptr);
574 #endif /* !defined(NDEBUG) */
576 /* actually set the exception */
578 exceptions_set_exception(LLNI_QUICKWRAP(xptr));
580 /* Return a NULL pointer. This is required for vm_call_method to
581 check for an exception. This is for convenience. */
587 /* builtin_retrieve_exception **************************************************
589 Gets and clears the exception pointer of the current thread.
592 the exception object, or NULL if no exception was thrown.
594 NOTE: This is a FAST builtin and can be called from JIT code,
595 or from the signal handlers.
597 *******************************************************************************/
599 java_object_t *builtin_retrieve_exception(void)
604 /* actually get and clear the exception */
606 h = exceptions_get_and_clear_exception();
613 /* builtin_canstore ************************************************************
615 Checks, if an object can be stored in an array.
619 0......otherwise (throws an ArrayStoreException)
621 NOTE: This is a SLOW builtin and can be called from JIT & NATIVE code.
623 *******************************************************************************/
625 bool builtin_canstore(java_handle_objectarray_t *oa, java_handle_t *o)
631 result = builtin_fast_canstore(LLNI_DIRECT(oa), LLNI_UNWRAP(o));
635 /* if not possible, throw an exception */
638 exceptions_throw_arraystoreexception();
644 /* builtin_fast_canstore *******************************************************
646 Checks, if an object can be stored in an array.
650 0......otherwise (no exception thrown!)
652 NOTE: This is a FAST builtin and can be called from JIT code only.
654 *******************************************************************************/
656 bool builtin_fast_canstore(java_objectarray_t *oa, java_object_t *o)
658 arraydescriptor *desc;
659 arraydescriptor *valuedesc;
660 vftbl_t *componentvftbl;
669 /* The following is guaranteed (by verifier checks):
671 * *) oa->...vftbl->arraydesc != NULL
672 * *) oa->...vftbl->arraydesc->componentvftbl != NULL
673 * *) o->vftbl is not an interface vftbl
676 desc = oa->header.objheader.vftbl->arraydesc;
677 componentvftbl = desc->componentvftbl;
678 valuevftbl = o->vftbl;
679 valuedesc = valuevftbl->arraydesc;
681 if ((desc->dimension - 1) == 0) {
682 /* {oa is a one-dimensional array} */
683 /* {oa is an array of references} */
685 if (valuevftbl == componentvftbl)
688 linker_classrenumber_mutex->lock();
690 baseval = componentvftbl->baseval;
693 /* an array of interface references */
695 result = ((valuevftbl->interfacetablelength > -baseval) &&
696 (valuevftbl->interfacetable[baseval] != NULL));
699 diffval = valuevftbl->baseval - componentvftbl->baseval;
700 result = diffval <= (uint32_t) componentvftbl->diffval;
703 linker_classrenumber_mutex->unlock();
705 else if (valuedesc == NULL) {
706 /* {oa has dimension > 1} */
707 /* {componentvftbl->arraydesc != NULL} */
709 /* check if o is an array */
714 /* {o is an array} */
716 result = builtin_descriptorscompatible(valuedesc, componentvftbl->arraydesc);
725 /* This is an optimized version where a is guaranteed to be one-dimensional */
726 bool builtin_fast_canstore_onedim(java_objectarray_t *a, java_object_t *o)
728 arraydescriptor *desc;
729 vftbl_t *elementvftbl;
738 /* The following is guaranteed (by verifier checks):
740 * *) a->...vftbl->arraydesc != NULL
741 * *) a->...vftbl->arraydesc->elementvftbl != NULL
742 * *) a->...vftbl->arraydesc->dimension == 1
743 * *) o->vftbl is not an interface vftbl
746 desc = a->header.objheader.vftbl->arraydesc;
747 elementvftbl = desc->elementvftbl;
748 valuevftbl = o->vftbl;
750 /* {a is a one-dimensional array} */
752 if (valuevftbl == elementvftbl)
755 linker_classrenumber_mutex->lock();
757 baseval = elementvftbl->baseval;
760 /* an array of interface references */
761 result = ((valuevftbl->interfacetablelength > -baseval) &&
762 (valuevftbl->interfacetable[baseval] != NULL));
765 diffval = valuevftbl->baseval - elementvftbl->baseval;
766 result = diffval <= (uint32_t) elementvftbl->diffval;
769 linker_classrenumber_mutex->unlock();
775 /* This is an optimized version where a is guaranteed to be a
776 * one-dimensional array of a class type */
777 bool builtin_fast_canstore_onedim_class(java_objectarray_t *a, java_object_t *o)
779 vftbl_t *elementvftbl;
787 /* The following is guaranteed (by verifier checks):
789 * *) a->...vftbl->arraydesc != NULL
790 * *) a->...vftbl->arraydesc->elementvftbl != NULL
791 * *) a->...vftbl->arraydesc->elementvftbl is not an interface vftbl
792 * *) a->...vftbl->arraydesc->dimension == 1
793 * *) o->vftbl is not an interface vftbl
796 elementvftbl = a->header.objheader.vftbl->arraydesc->elementvftbl;
797 valuevftbl = o->vftbl;
799 /* {a is a one-dimensional array} */
801 if (valuevftbl == elementvftbl)
804 linker_classrenumber_mutex->lock();
806 diffval = valuevftbl->baseval - elementvftbl->baseval;
807 result = diffval <= (uint32_t) elementvftbl->diffval;
809 linker_classrenumber_mutex->unlock();
815 /* builtin_new *****************************************************************
817 Creates a new instance of class c on the heap.
820 pointer to the object, or NULL if no memory is available
822 NOTE: This builtin can be called from NATIVE code only.
824 *******************************************************************************/
826 java_handle_t *builtin_new(classinfo *c)
829 #if defined(ENABLE_RT_TIMING)
830 struct timespec time_start, time_end;
832 #if defined(ENABLE_CYCLES_STATS)
833 u8 cycles_start, cycles_end;
836 RT_TIMING_GET_TIME(time_start);
837 CYCLES_STATS_GET(cycles_start);
839 /* is the class loaded */
841 assert(c->state & CLASS_LOADED);
843 /* check if we can instantiate this class */
845 if (c->flags & ACC_ABSTRACT) {
846 exceptions_throw_instantiationerror(c);
850 /* is the class linked */
852 if (!(c->state & CLASS_LINKED))
856 if (!(c->state & CLASS_INITIALIZED)) {
859 log_message_class("Initialize class (from builtin_new): ", c);
862 if (!initialize_class(c))
866 o = (java_handle_t*) heap_alloc(c->instancesize, c->flags & ACC_CLASS_HAS_POINTERS,
872 #if !defined(ENABLE_GC_CACAO) && defined(ENABLE_HANDLES)
873 /* XXX this is only a dirty hack to make Boehm work with handles */
875 o = LLNI_WRAP((java_object_t *) o);
878 LLNI_vftbl_direct(o) = c->vftbl;
880 #if defined(ENABLE_THREADS)
881 LLNI_DIRECT(o)->lockword.init();
884 CYCLES_STATS_GET(cycles_end);
885 RT_TIMING_GET_TIME(time_end);
887 CYCLES_STATS_COUNT(builtin_new,cycles_end - cycles_start);
888 RT_TIMING_TIME_DIFF(time_start, time_end, RT_TIMING_NEW_OBJECT);
893 #if defined(ENABLE_ESCAPE_REASON)
894 java_handle_t *builtin_escape_reason_new(classinfo *c) {
895 print_escape_reasons();
896 return builtin_java_new(c);
900 #if defined(ENABLE_TLH)
901 java_handle_t *builtin_tlh_new(classinfo *c)
904 # if defined(ENABLE_RT_TIMING)
905 struct timespec time_start, time_end;
907 # if defined(ENABLE_CYCLES_STATS)
908 u8 cycles_start, cycles_end;
911 RT_TIMING_GET_TIME(time_start);
912 CYCLES_STATS_GET(cycles_start);
914 /* is the class loaded */
916 assert(c->state & CLASS_LOADED);
918 /* check if we can instantiate this class */
920 if (c->flags & ACC_ABSTRACT) {
921 exceptions_throw_instantiationerror(c);
925 /* is the class linked */
927 if (!(c->state & CLASS_LINKED))
931 if (!(c->state & CLASS_INITIALIZED)) {
932 # if !defined(NDEBUG)
934 log_message_class("Initialize class (from builtin_new): ", c);
937 if (!initialize_class(c))
942 o = tlh_alloc(&(THREADOBJECT->tlh), c->instancesize);
947 o = (java_handle_t*) heap_alloc(c->instancesize, c->flags & ACC_CLASS_HAS_POINTERS,
954 # if !defined(ENABLE_GC_CACAO) && defined(ENABLE_HANDLES)
955 /* XXX this is only a dirty hack to make Boehm work with handles */
957 o = LLNI_WRAP((java_object_t *) o);
960 LLNI_vftbl_direct(o) = c->vftbl;
962 # if defined(ENABLE_THREADS)
963 LLNI_DIRECT(o)->lockword.init();
966 CYCLES_STATS_GET(cycles_end);
967 RT_TIMING_GET_TIME(time_end);
970 CYCLES_STATS_COUNT(builtin_new,cycles_end - cycles_start);
971 RT_TIMING_TIME_DIFF(time_start, time_end, RT_TIMING_NEW_OBJECT);
979 /* builtin_java_new ************************************************************
981 NOTE: This is a SLOW builtin and can be called from JIT code only.
983 *******************************************************************************/
985 java_handle_t *builtin_java_new(java_handle_t *clazz)
987 return builtin_new(LLNI_classinfo_unwrap(clazz));
991 /* builtin_fast_new ************************************************************
993 Creates a new instance of class c on the heap.
996 pointer to the object, or NULL if no fast return
997 is possible for any reason.
999 NOTE: This is a FAST builtin and can be called from JIT code only.
1001 *******************************************************************************/
1003 java_object_t *builtin_fast_new(classinfo *c)
1006 #if defined(ENABLE_RT_TIMING)
1007 struct timespec time_start, time_end;
1009 #if defined(ENABLE_CYCLES_STATS)
1010 u8 cycles_start, cycles_end;
1013 RT_TIMING_GET_TIME(time_start);
1014 CYCLES_STATS_GET(cycles_start);
1016 /* is the class loaded */
1018 assert(c->state & CLASS_LOADED);
1020 /* check if we can instantiate this class */
1022 if (c->flags & ACC_ABSTRACT)
1025 /* is the class linked */
1027 if (!(c->state & CLASS_LINKED))
1030 if (!(c->state & CLASS_INITIALIZED))
1033 o = (java_handle_t*) heap_alloc(c->instancesize, c->flags & ACC_CLASS_HAS_POINTERS,
1034 c->finalizer, false);
1039 o->vftbl = c->vftbl;
1041 #if defined(ENABLE_THREADS)
1042 LLNI_DIRECT(o)->lockword.init();
1045 CYCLES_STATS_GET(cycles_end);
1046 RT_TIMING_GET_TIME(time_end);
1048 CYCLES_STATS_COUNT(builtin_new,cycles_end - cycles_start);
1049 RT_TIMING_TIME_DIFF(time_start, time_end, RT_TIMING_NEW_OBJECT);
1055 /* builtin_newarray ************************************************************
1057 Creates an array with the given vftbl on the heap. This function
1058 takes as class argument an array class.
1061 pointer to the array or NULL if no memory is available
1063 NOTE: This builtin can be called from NATIVE code only.
1065 *******************************************************************************/
1067 java_handle_t *builtin_newarray(int32_t size, classinfo *arrayclass)
1069 arraydescriptor *desc;
1074 #if defined(ENABLE_RT_TIMING)
1075 struct timespec time_start, time_end;
1078 RT_TIMING_GET_TIME(time_start);
1080 desc = arrayclass->vftbl->arraydesc;
1081 dataoffset = desc->dataoffset;
1082 componentsize = desc->componentsize;
1085 exceptions_throw_negativearraysizeexception();
1089 actualsize = dataoffset + size * componentsize;
1091 /* check for overflow */
1093 if (((u4) actualsize) < ((u4) size)) {
1094 exceptions_throw_outofmemoryerror();
1098 a = (java_handle_t*) heap_alloc(actualsize, (desc->arraytype == ARRAYTYPE_OBJECT), NULL, true);
1103 #if !defined(ENABLE_GC_CACAO) && defined(ENABLE_HANDLES)
1104 /* XXX this is only a dirty hack to make Boehm work with handles */
1106 a = LLNI_WRAP((java_object_t *) a);
1109 LLNI_vftbl_direct(a) = arrayclass->vftbl;
1111 #if defined(ENABLE_THREADS)
1112 LLNI_DIRECT(a)->lockword.init();
1115 LLNI_array_size(a) = size;
1117 RT_TIMING_GET_TIME(time_end);
1118 RT_TIMING_TIME_DIFF(time_start, time_end, RT_TIMING_NEW_ARRAY);
1124 /* builtin_java_newarray *******************************************************
1126 NOTE: This is a SLOW builtin and can be called from JIT code only.
1128 *******************************************************************************/
1130 java_handle_t *builtin_java_newarray(int32_t size, java_handle_t *arrayclazz)
1132 return builtin_newarray(size, LLNI_classinfo_unwrap(arrayclazz));
1136 /* builtin_anewarray ***********************************************************
1138 Creates an array of references to the given class type on the heap.
1141 pointer to the array or NULL if no memory is
1144 NOTE: This builtin can be called from NATIVE code only.
1146 *******************************************************************************/
1148 java_handle_objectarray_t *builtin_anewarray(int32_t size, classinfo *componentclass)
1150 classinfo *arrayclass;
1152 /* is class loaded */
1154 assert(componentclass->state & CLASS_LOADED);
1156 /* is class linked */
1158 if (!(componentclass->state & CLASS_LINKED))
1159 if (!link_class(componentclass))
1162 arrayclass = class_array_of(componentclass, true);
1167 return (java_handle_objectarray_t *) builtin_newarray(size, arrayclass);
1171 /* builtin_newarray_type ****************************************************
1173 Creates an array of [type]s on the heap.
1176 pointer to the array or NULL if no memory is available
1178 NOTE: This is a SLOW builtin and can be called from JIT & NATIVE code.
1180 *******************************************************************************/
1182 #define BUILTIN_NEWARRAY_TYPE(type, arraytype) \
1183 java_handle_##type##array_t *builtin_newarray_##type(int32_t size) \
1185 return (java_handle_##type##array_t *) \
1186 builtin_newarray(size, primitivetype_table[arraytype].arrayclass); \
1189 BUILTIN_NEWARRAY_TYPE(boolean, ARRAYTYPE_BOOLEAN)
1190 BUILTIN_NEWARRAY_TYPE(byte, ARRAYTYPE_BYTE)
1191 BUILTIN_NEWARRAY_TYPE(char, ARRAYTYPE_CHAR)
1192 BUILTIN_NEWARRAY_TYPE(short, ARRAYTYPE_SHORT)
1193 BUILTIN_NEWARRAY_TYPE(int, ARRAYTYPE_INT)
1194 BUILTIN_NEWARRAY_TYPE(long, ARRAYTYPE_LONG)
1195 BUILTIN_NEWARRAY_TYPE(float, ARRAYTYPE_FLOAT)
1196 BUILTIN_NEWARRAY_TYPE(double, ARRAYTYPE_DOUBLE)
1199 /* builtin_multianewarray_intern ***********************************************
1201 Creates a multi-dimensional array on the heap. The dimensions are
1202 passed in an array of longs.
1205 n.............number of dimensions to create
1206 arrayclass....the array class
1207 dims..........array containing the size of each dimension to create
1210 pointer to the array or NULL if no memory is available
1212 ******************************************************************************/
1214 static java_handle_t *builtin_multianewarray_intern(int n,
1215 classinfo *arrayclass,
1220 classinfo *componentclass;
1223 /* create this dimension */
1225 size = (s4) dims[0];
1226 a = builtin_newarray(size, arrayclass);
1231 /* if this is the last dimension return */
1236 /* get the class of the components to create */
1238 componentclass = arrayclass->vftbl->arraydesc->componentvftbl->clazz;
1240 /* The verifier guarantees that the dimension count is in the range. */
1242 /* create the component arrays */
1244 for (i = 0; i < size; i++) {
1246 #if defined(__MIPS__) && (SIZEOF_VOID_P == 4)
1247 /* we save an s4 to a s8 slot, 8-byte aligned */
1249 builtin_multianewarray_intern(n, componentclass, dims + 2);
1251 builtin_multianewarray_intern(n, componentclass, dims + 1);
1257 array_objectarray_element_set((java_handle_objectarray_t *) a, i, ea);
1264 /* builtin_multianewarray ******************************************************
1266 Wrapper for builtin_multianewarray_intern which checks all
1267 dimensions before we start allocating.
1269 NOTE: This is a SLOW builtin and can be called from JIT code only.
1271 ******************************************************************************/
1273 java_handle_objectarray_t *builtin_multianewarray(int n,
1274 java_handle_t *arrayclazz,
1281 /* check all dimensions before doing anything */
1283 for (i = 0; i < n; i++) {
1284 #if defined(__MIPS__) && (SIZEOF_VOID_P == 4)
1285 /* we save an s4 to a s8 slot, 8-byte aligned */
1286 size = (s4) dims[i * 2];
1288 size = (s4) dims[i];
1292 exceptions_throw_negativearraysizeexception();
1297 c = LLNI_classinfo_unwrap(arrayclazz);
1299 /* now call the real function */
1301 return (java_handle_objectarray_t *)
1302 builtin_multianewarray_intern(n, c, dims);
1306 /* builtin_verbosecall_enter ***************************************************
1308 Print method call with arguments for -verbose:call.
1310 XXX: Remove mew once all archs use the new tracer!
1312 *******************************************************************************/
1314 #if !defined(NDEBUG)
1315 #ifdef TRACE_ARGS_NUM
1316 void builtin_verbosecall_enter(s8 a0, s8 a1,
1317 # if TRACE_ARGS_NUM >= 4
1320 # if TRACE_ARGS_NUM >= 6
1323 # if TRACE_ARGS_NUM == 8
1328 log_text("builtin_verbosecall_enter: Do not call me anymore!");
1331 #endif /* !defined(NDEBUG) */
1334 /* builtin_verbosecall_exit ****************************************************
1336 Print method exit for -verbose:call.
1338 XXX: Remove mew once all archs use the new tracer!
1340 *******************************************************************************/
1342 #if !defined(NDEBUG)
1343 void builtin_verbosecall_exit(s8 l, double d, float f, methodinfo *m)
1345 log_text("builtin_verbosecall_exit: Do not call me anymore!");
1347 #endif /* !defined(NDEBUG) */
1350 /*============================================================================*/
1351 /* MISCELLANEOUS MATHEMATICAL HELPER FUNCTIONS */
1352 /*============================================================================*/
1354 /*********** Functions for integer divisions *****************************
1356 On some systems (eg. DEC ALPHA), integer division is not supported by the
1357 CPU. These helper functions implement the missing functionality.
1359 ******************************************************************************/
1361 #if !SUPPORT_DIVISION || defined(DISABLE_GC)
1362 s4 builtin_idiv(s4 a, s4 b)
1371 s4 builtin_irem(s4 a, s4 b)
1379 #endif /* !SUPPORT_DIVISION || defined(DISABLE_GC) */
1382 /* functions for long arithmetics **********************************************
1384 On systems where 64 bit Integers are not supported by the CPU,
1385 these functions are needed.
1387 ******************************************************************************/
1389 #if !(SUPPORT_LONG && SUPPORT_LONG_ADD)
1390 s8 builtin_ladd(s8 a, s8 b)
1399 s8 builtin_lsub(s8 a, s8 b)
1408 s8 builtin_lneg(s8 a)
1416 #endif /* !(SUPPORT_LONG && SUPPORT_LONG_ADD) */
1419 #if !(SUPPORT_LONG && SUPPORT_LONG_MUL)
1420 s8 builtin_lmul(s8 a, s8 b)
1428 #endif /* !(SUPPORT_LONG && SUPPORT_LONG_MUL) */
1431 #if !(SUPPORT_DIVISION && SUPPORT_LONG && SUPPORT_LONG_DIV) || defined (DISABLE_GC)
1432 s8 builtin_ldiv(s8 a, s8 b)
1441 s8 builtin_lrem(s8 a, s8 b)
1449 #endif /* !(SUPPORT_DIVISION && SUPPORT_LONG && SUPPORT_LONG_DIV) */
1452 #if !(SUPPORT_LONG && SUPPORT_LONG_SHIFT)
1453 s8 builtin_lshl(s8 a, s4 b)
1462 s8 builtin_lshr(s8 a, s4 b)
1471 s8 builtin_lushr(s8 a, s4 b)
1475 c = ((u8) a) >> (b & 63);
1479 #endif /* !(SUPPORT_LONG && SUPPORT_LONG_SHIFT) */
1482 #if !(SUPPORT_LONG && SUPPORT_LONG_LOGICAL)
1483 s8 builtin_land(s8 a, s8 b)
1492 s8 builtin_lor(s8 a, s8 b)
1501 s8 builtin_lxor(s8 a, s8 b)
1509 #endif /* !(SUPPORT_LONG && SUPPORT_LONG_LOGICAL) */
1512 #if !(SUPPORT_LONG && SUPPORT_LONG_CMP)
1513 s4 builtin_lcmp(s8 a, s8 b)
1523 #endif /* !(SUPPORT_LONG && SUPPORT_LONG_CMP) */
1526 /* functions for unsupported floating instructions ****************************/
1528 /* used to convert FLT_xxx defines into float values */
1530 static inline float intBitsToFloat(s4 i)
1539 /* used to convert DBL_xxx defines into double values */
1541 static inline float longBitsToDouble(s8 l)
1551 float builtin_fadd(float a, float b)
1553 if (isnanf(a)) return intBitsToFloat(FLT_NAN);
1554 if (isnanf(b)) return intBitsToFloat(FLT_NAN);
1565 if (copysignf(1.0, a) == copysignf(1.0, b))
1568 return intBitsToFloat(FLT_NAN);
1574 float builtin_fsub(float a, float b)
1576 return builtin_fadd(a, builtin_fneg(b));
1580 float builtin_fmul(float a, float b)
1582 if (isnanf(a)) return intBitsToFloat(FLT_NAN);
1583 if (isnanf(b)) return intBitsToFloat(FLT_NAN);
1585 if (finitef(b)) return a * b;
1587 if (a == 0) return intBitsToFloat(FLT_NAN);
1588 else return copysignf(b, copysignf(1.0, b)*a);
1593 if (b == 0) return intBitsToFloat(FLT_NAN);
1594 else return copysignf(a, copysignf(1.0, a)*b);
1597 return copysignf(a, copysignf(1.0, a)*copysignf(1.0, b));
1603 /* builtin_ddiv ****************************************************************
1605 Implementation as described in VM Spec.
1607 *******************************************************************************/
1609 float builtin_fdiv(float a, float b)
1613 /* If neither value1' nor value2' is NaN, the sign of the result */
1614 /* is positive if both values have the same sign, negative if the */
1615 /* values have different signs. */
1621 /* If either value1' or value2' is NaN, the result is NaN. */
1623 return intBitsToFloat(FLT_NAN);
1626 /* Division of a finite value by an infinity results in a */
1627 /* signed zero, with the sign-producing rule just given. */
1629 /* is sign equal? */
1631 if (copysignf(1.0, a) == copysignf(1.0, b))
1640 /* If either value1' or value2' is NaN, the result is NaN. */
1642 return intBitsToFloat(FLT_NAN);
1644 } else if (finitef(b)) {
1645 /* Division of an infinity by a finite value results in a signed */
1646 /* infinity, with the sign-producing rule just given. */
1648 /* is sign equal? */
1650 if (copysignf(1.0, a) == copysignf(1.0, b))
1651 return intBitsToFloat(FLT_POSINF);
1653 return intBitsToFloat(FLT_NEGINF);
1656 /* Division of an infinity by an infinity results in NaN. */
1658 return intBitsToFloat(FLT_NAN);
1664 float builtin_fneg(float a)
1666 if (isnanf(a)) return a;
1668 if (finitef(a)) return -a;
1669 else return copysignf(a, -copysignf(1.0, a));
1672 #endif /* !SUPPORT_FLOAT */
1675 #if !SUPPORT_FLOAT || !SUPPORT_FLOAT_CMP || defined(ENABLE_INTRP)
1676 s4 builtin_fcmpl(float a, float b)
1684 if (!finitef(a) || !finitef(b)) {
1685 a = finitef(a) ? 0 : copysignf(1.0, a);
1686 b = finitef(b) ? 0 : copysignf(1.0, b);
1699 s4 builtin_fcmpg(float a, float b)
1701 if (isnanf(a)) return 1;
1702 if (isnanf(b)) return 1;
1703 if (!finitef(a) || !finitef(b)) {
1704 a = finitef(a) ? 0 : copysignf(1.0, a);
1705 b = finitef(b) ? 0 : copysignf(1.0, b);
1707 if (a > b) return 1;
1708 if (a == b) return 0;
1711 #endif /* !SUPPORT_FLOAT || !SUPPORT_FLOAT_CMP || defined(ENABLE_INTRP) */
1714 float builtin_frem(float a, float b)
1720 /* functions for unsupported double instructions ******************************/
1723 double builtin_dadd(double a, double b)
1725 if (isnan(a)) return longBitsToDouble(DBL_NAN);
1726 if (isnan(b)) return longBitsToDouble(DBL_NAN);
1728 if (finite(b)) return a + b;
1732 if (finite(b)) return a;
1734 if (copysign(1.0, a)==copysign(1.0, b)) return a;
1735 else return longBitsToDouble(DBL_NAN);
1741 double builtin_dsub(double a, double b)
1743 return builtin_dadd(a, builtin_dneg(b));
1747 double builtin_dmul(double a, double b)
1749 if (isnan(a)) return longBitsToDouble(DBL_NAN);
1750 if (isnan(b)) return longBitsToDouble(DBL_NAN);
1752 if (finite(b)) return a * b;
1754 if (a == 0) return longBitsToDouble(DBL_NAN);
1755 else return copysign(b, copysign(1.0, b) * a);
1760 if (b == 0) return longBitsToDouble(DBL_NAN);
1761 else return copysign(a, copysign(1.0, a) * b);
1764 return copysign(a, copysign(1.0, a) * copysign(1.0, b));
1770 /* builtin_ddiv ****************************************************************
1772 Implementation as described in VM Spec.
1774 *******************************************************************************/
1776 double builtin_ddiv(double a, double b)
1780 /* If neither value1' nor value2' is NaN, the sign of the result */
1781 /* is positive if both values have the same sign, negative if the */
1782 /* values have different signs. */
1788 /* If either value1' or value2' is NaN, the result is NaN. */
1790 return longBitsToDouble(DBL_NAN);
1793 /* Division of a finite value by an infinity results in a */
1794 /* signed zero, with the sign-producing rule just given. */
1796 /* is sign equal? */
1798 if (copysign(1.0, a) == copysign(1.0, b))
1807 /* If either value1' or value2' is NaN, the result is NaN. */
1809 return longBitsToDouble(DBL_NAN);
1811 } else if (finite(b)) {
1812 /* Division of an infinity by a finite value results in a signed */
1813 /* infinity, with the sign-producing rule just given. */
1815 /* is sign equal? */
1817 if (copysign(1.0, a) == copysign(1.0, b))
1818 return longBitsToDouble(DBL_POSINF);
1820 return longBitsToDouble(DBL_NEGINF);
1823 /* Division of an infinity by an infinity results in NaN. */
1825 return longBitsToDouble(DBL_NAN);
1831 /* builtin_dneg ****************************************************************
1833 Implemented as described in VM Spec.
1835 *******************************************************************************/
1837 double builtin_dneg(double a)
1840 /* If the operand is NaN, the result is NaN (recall that NaN has no */
1847 /* If the operand is a zero, the result is the zero of opposite */
1853 /* If the operand is an infinity, the result is the infinity of */
1854 /* opposite sign. */
1856 return copysign(a, -copysign(1.0, a));
1860 #endif /* !SUPPORT_DOUBLE */
1863 #if !SUPPORT_DOUBLE || !SUPPORT_DOUBLE_CMP || defined(ENABLE_INTRP)
1864 s4 builtin_dcmpl(double a, double b)
1872 if (!finite(a) || !finite(b)) {
1873 a = finite(a) ? 0 : copysign(1.0, a);
1874 b = finite(b) ? 0 : copysign(1.0, b);
1887 s4 builtin_dcmpg(double a, double b)
1895 if (!finite(a) || !finite(b)) {
1896 a = finite(a) ? 0 : copysign(1.0, a);
1897 b = finite(b) ? 0 : copysign(1.0, b);
1908 #endif /* !SUPPORT_DOUBLE || !SUPPORT_DOUBLE_CMP || defined(ENABLE_INTRP) */
1911 double builtin_drem(double a, double b)
1917 /* conversion operations ******************************************************/
1919 #if !(SUPPORT_FLOAT && SUPPORT_I2F)
1920 float builtin_i2f(s4 a)
1922 float f = (float) a;
1925 #endif /* !(SUPPORT_FLOAT && SUPPORT_I2F) */
1928 #if !(SUPPORT_DOUBLE && SUPPORT_I2D)
1929 double builtin_i2d(s4 a)
1931 double d = (double) a;
1934 #endif /* !(SUPPORT_DOUBLE && SUPPORT_I2D) */
1937 #if !(SUPPORT_LONG && SUPPORT_FLOAT && SUPPORT_L2F)
1938 float builtin_l2f(s8 a)
1940 float f = (float) a;
1943 #endif /* !(SUPPORT_LONG && SUPPORT_FLOAT && SUPPORT_L2F) */
1946 #if !(SUPPORT_LONG && SUPPORT_DOUBLE && SUPPORT_L2D)
1947 double builtin_l2d(s8 a)
1949 double d = (double) a;
1952 #endif /* !(SUPPORT_LONG && SUPPORT_DOUBLE && SUPPORT_L2D) */
1955 #if !(SUPPORT_FLOAT && SUPPORT_F2I) || defined(ENABLE_INTRP) || defined(DISABLE_GC)
1956 s4 builtin_f2i(float a)
1960 i = builtin_d2i((double) a);
1971 if (a < (-2147483648))
1972 return (-2147483648);
1975 f = copysignf((float) 1.0, a);
1978 return (-2147483648); */
1980 #endif /* !(SUPPORT_FLOAT && SUPPORT_F2I) || defined(ENABLE_INTRP) || defined(DISABLE_GC) */
1983 #if !(SUPPORT_FLOAT && SUPPORT_LONG && SUPPORT_F2L) || defined(DISABLE_GC)
1984 s8 builtin_f2l(float a)
1988 l = builtin_d2l((double) a);
1995 if (a > 9223372036854775807L)
1996 return 9223372036854775807L;
1997 if (a < (-9223372036854775808L))
1998 return (-9223372036854775808L);
2003 f = copysignf((float) 1.0, a);
2005 return 9223372036854775807L;
2006 return (-9223372036854775808L); */
2008 #endif /* !(SUPPORT_FLOAT && SUPPORT_LONG && SUPPORT_F2L) */
2011 #if !(SUPPORT_DOUBLE && SUPPORT_D2I) || defined(ENABLE_INTRP) || defined(DISABLE_GC)
2012 s4 builtin_d2i(double a)
2017 if (a >= 2147483647)
2019 if (a <= (-2147483647-1))
2020 return (-2147483647-1);
2025 d = copysign(1.0, a);
2028 return (-2147483647-1);
2030 #endif /* !(SUPPORT_DOUBLE && SUPPORT_D2I) || defined(ENABLE_INTRP) || defined(DISABLE_GC) */
2033 #if !(SUPPORT_DOUBLE && SUPPORT_LONG && SUPPORT_D2L) || defined(DISABLE_GC)
2034 s8 builtin_d2l(double a)
2039 if (a >= 9223372036854775807LL)
2040 return 9223372036854775807LL;
2041 if (a <= (-9223372036854775807LL-1))
2042 return (-9223372036854775807LL-1);
2047 d = copysign(1.0, a);
2049 return 9223372036854775807LL;
2050 return (-9223372036854775807LL-1);
2052 #endif /* !(SUPPORT_DOUBLE && SUPPORT_LONG && SUPPORT_D2L) */
2055 #if !(SUPPORT_FLOAT && SUPPORT_DOUBLE)
2056 double builtin_f2d(float a)
2058 if (finitef(a)) return (double) a;
2061 return longBitsToDouble(DBL_NAN);
2063 return copysign(longBitsToDouble(DBL_POSINF), (double) copysignf(1.0, a) );
2067 float builtin_d2f(double a)
2073 return intBitsToFloat(FLT_NAN);
2075 return copysignf(intBitsToFloat(FLT_POSINF), (float) copysign(1.0, a));
2078 #endif /* !(SUPPORT_FLOAT && SUPPORT_DOUBLE) */
2081 /*============================================================================*/
2082 /* AUTOMATICALLY REPLACED FUNCTIONS */
2083 /*============================================================================*/
2085 /* builtin_arraycopy ***********************************************************
2087 Builtin for java.lang.System.arraycopy.
2089 NOTE: This is a SLOW builtin and can be called from JIT & NATIVE code.
2091 *******************************************************************************/
2093 void builtin_arraycopy(java_handle_t *src, s4 srcStart,
2094 java_handle_t *dest, s4 destStart, s4 len)
2096 arraydescriptor *sdesc;
2097 arraydescriptor *ddesc;
2100 if ((src == NULL) || (dest == NULL)) {
2101 exceptions_throw_nullpointerexception();
2105 sdesc = LLNI_vftbl_direct(src)->arraydesc;
2106 ddesc = LLNI_vftbl_direct(dest)->arraydesc;
2108 if (!sdesc || !ddesc || (sdesc->arraytype != ddesc->arraytype)) {
2109 exceptions_throw_arraystoreexception();
2113 // Check if offsets and length are positive.
2114 if ((srcStart < 0) || (destStart < 0) || (len < 0)) {
2115 exceptions_throw_arrayindexoutofboundsexception();
2119 // Check if ranges are valid.
2120 if ((((uint32_t) srcStart + (uint32_t) len) > (uint32_t) LLNI_array_size(src)) ||
2121 (((uint32_t) destStart + (uint32_t) len) > (uint32_t) LLNI_array_size(dest))) {
2122 exceptions_throw_arrayindexoutofboundsexception();
2131 if (sdesc->componentvftbl == ddesc->componentvftbl) {
2132 /* We copy primitive values or references of exactly the same type */
2134 s4 dataoffset = sdesc->dataoffset;
2135 s4 componentsize = sdesc->componentsize;
2137 LLNI_CRITICAL_START;
2139 MMOVE(((u1 *) LLNI_DIRECT(dest)) + dataoffset + componentsize * destStart,
2140 ((u1 *) LLNI_DIRECT(src)) + dataoffset + componentsize * srcStart,
2141 u1, (size_t) len * componentsize);
2146 /* We copy references of different type */
2148 java_handle_objectarray_t *oas = (java_handle_objectarray_t *) src;
2149 java_handle_objectarray_t *oad = (java_handle_objectarray_t *) dest;
2151 if (destStart <= srcStart) {
2152 for (i = 0; i < len; i++) {
2155 o = array_objectarray_element_get(oas, srcStart + i);
2157 if (!builtin_canstore(oad, o))
2160 array_objectarray_element_set(oad, destStart + i, o);
2164 /* XXX this does not completely obey the specification!
2165 If an exception is thrown only the elements above the
2166 current index have been copied. The specification
2167 requires that only the elements *below* the current
2168 index have been copied before the throw. */
2170 for (i = len - 1; i >= 0; i--) {
2173 o = array_objectarray_element_get(oas, srcStart + i);
2175 if (!builtin_canstore(oad, o))
2178 array_objectarray_element_set(oad, destStart + i, o);
2185 /* builtin_nanotime ************************************************************
2187 Return the current time in nanoseconds.
2189 *******************************************************************************/
2191 s8 builtin_nanotime(void)
2196 if (gettimeofday(&tv, NULL) == -1)
2197 vm_abort("gettimeofday failed: %s", strerror(errno));
2199 usecs = (s8) tv.tv_sec * (1000 * 1000) + (s8) tv.tv_usec;
2201 return usecs * 1000;
2205 /* builtin_currenttimemillis ***************************************************
2207 Return the current time in milliseconds.
2209 *******************************************************************************/
2211 s8 builtin_currenttimemillis(void)
2215 msecs = builtin_nanotime() / 1000 / 1000;
2221 /* builtin_clone ***************************************************************
2223 Function for cloning objects or arrays.
2225 NOTE: This is a SLOW builtin and can be called from JIT & NATIVE code.
2227 *******************************************************************************/
2229 java_handle_t *builtin_clone(void *env, java_handle_t *o)
2231 arraydescriptor *ad;
2234 java_handle_t *co; /* cloned object header */
2236 /* get the array descriptor */
2238 ad = LLNI_vftbl_direct(o)->arraydesc;
2240 /* we are cloning an array */
2243 size = ad->dataoffset + ad->componentsize * LLNI_array_size(o);
2245 co = (java_handle_t*) heap_alloc(size, (ad->arraytype == ARRAYTYPE_OBJECT), NULL, true);
2250 #if !defined(ENABLE_GC_CACAO) && defined(ENABLE_HANDLES)
2251 /* XXX this is only a dirty hack to make Boehm work with handles */
2253 co = LLNI_WRAP((java_object_t *) co);
2256 LLNI_CRITICAL_START;
2258 MCOPY(LLNI_DIRECT(co), LLNI_DIRECT(o), u1, size);
2260 #if defined(ENABLE_GC_CACAO)
2261 heap_init_objectheader(LLNI_DIRECT(co), size);
2264 #if defined(ENABLE_THREADS)
2265 LLNI_DIRECT(co)->lockword.init();
2273 /* we are cloning a non-array */
2275 if (!builtin_instanceof(o, class_java_lang_Cloneable)) {
2276 exceptions_throw_clonenotsupportedexception();
2280 /* get the class of the object */
2282 LLNI_class_get(o, c);
2284 /* create new object */
2286 co = builtin_new(c);
2291 LLNI_CRITICAL_START;
2293 MCOPY(LLNI_DIRECT(co), LLNI_DIRECT(o), u1, c->instancesize);
2295 #if defined(ENABLE_GC_CACAO)
2296 heap_init_objectheader(LLNI_DIRECT(co), c->instancesize);
2299 #if defined(ENABLE_THREADS)
2300 LLNI_DIRECT(co)->lockword.init();
2309 #if defined(ENABLE_CYCLES_STATS)
2310 void builtin_print_cycles_stats(FILE *file)
2312 fprintf(file,"builtin cylce count statistics:\n");
2314 CYCLES_STATS_PRINT_OVERHEAD(builtin_overhead,file);
2315 CYCLES_STATS_PRINT(builtin_new ,file);
2319 #endif /* defined(ENABLE_CYCLES_STATS) */
2322 #if defined(ENABLE_VMLOG)
2324 #include <vmlog_cacao.c>
2329 * These are local overrides for various environment variables in Emacs.
2330 * Please do not remove this and leave it at the end of the file, where
2331 * Emacs will automagically detect them.
2332 * ---------------------------------------------------------------------
2335 * indent-tabs-mode: t
2339 * vim:noexpandtab:sw=4:ts=4: