X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=builtin.c;h=ae8f01742b4923add036e91635961a3d66f8f627;hb=a23aa5f8faa05bab8bfcae2d2c47b25de7c55269;hp=1d1cf3a01879743db902189415e330d6991efd5d;hpb=6e766760aff61f305b0064a5d04ae0fd6493a431;p=cacao.git diff --git a/builtin.c b/builtin.c index 1d1cf3a01..ae8f01742 100644 --- a/builtin.c +++ b/builtin.c @@ -1,273 +1,261 @@ -/****************************** builtin.c ************************************** +/* builtin.c - functions for unsupported operations - Copyright (c) 1997 A. Krall, R. Grafl, M. Gschwind, M. Probst + Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 + R. Grafl, A. Krall, C. Kruegel, C. Oates, R. Obermaisser, + M. Probst, S. Ring, E. Steiner, C. Thalinger, D. Thuernbeck, + P. Tomsich, J. Wenninger - See file COPYRIGHT for information on usage and disclaimer of warranties + This file is part of CACAO. - Enthaelt die C-Funktionen fuer alle JavaVM-Befehle, die sich nicht direkt - auf Maschinencode "ubersetzen lassen. Im Code f"ur die Methoden steht - dann ein Funktionsaufruf (nat"urlich mit den Aufrufskonventionen von C). + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 2, or (at + your option) any later version. - Authors: Reinhard Grafl EMAIL: cacao@complang.tuwien.ac.at - Andreas Krall EMAIL: cacao@complang.tuwien.ac.at - Mark Probst EMAIL: cacao@complang.tuwien.ac.at + This program is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. - Last Change: 1996/12/03 + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. -*******************************************************************************/ + Contact: cacao@complang.tuwien.ac.at -#include -#include + Authors: Reinhard Grafl + Andreas Krall + Mark Probst + + Contains C functions for JavaVM Instructions that cannot be + translated to machine language directly. Consequently, the + generated machine code for these instructions contains function + calls instead of machine instructions, using the C calling + convention. + + $Id: builtin.c 1369 2004-08-01 21:53:32Z stefan $ +*/ + + +#include +#include +#include +#include "exceptions.h" #include "global.h" +#include "options.h" #include "builtin.h" - +#include "native.h" #include "loader.h" #include "tables.h" - +#include "asmpart.h" +#include "mm/boehm.h" #include "threads/thread.h" -#include "threads/locks.h" /* schani */ - -#include "sysdep/native-math.h" - -builtin_descriptor builtin_desc[] = { - {(functionptr) builtin_instanceof, "instanceof"}, - {(functionptr) builtin_checkcast, "checkcast"}, - {(functionptr) builtin_arrayinstanceof, "arrayinstanceof"}, - {(functionptr) builtin_checkarraycast, "checkarraycast"}, - {(functionptr) asm_builtin_checkarraycast, "checkarraycast"}, - {(functionptr) asm_builtin_aastore, "aastore"}, - {(functionptr) builtin_new, "new"}, - {(functionptr) builtin_anewarray, "anewarray"}, - {(functionptr) builtin_newarray_array, "newarray_array"}, - {(functionptr) builtin_newarray_boolean, "newarray_boolean"}, - {(functionptr) builtin_newarray_char, "newarray_char"}, - {(functionptr) builtin_newarray_float, "newarray_float"}, - {(functionptr) builtin_newarray_double, "newarray_double"}, - {(functionptr) builtin_newarray_byte, "newarray_byte"}, - {(functionptr) builtin_newarray_short, "newarray_short"}, - {(functionptr) builtin_newarray_int, "newarray_int"}, - {(functionptr) builtin_newarray_long, "newarray_long"}, - {(functionptr) builtin_displaymethodstart, "displaymethodstart"}, - {(functionptr) builtin_displaymethodstop, "displaymethodstop"}, - {(functionptr) builtin_monitorenter, "monitorenter"}, - {(functionptr) asm_builtin_monitorenter, "monitorenter"}, - {(functionptr) builtin_monitorexit, "monitorexit"}, - {(functionptr) asm_builtin_monitorexit, "monitorexit"}, - {(functionptr) builtin_idiv, "idiv"}, - {(functionptr) asm_builtin_idiv, "idiv"}, - {(functionptr) builtin_irem, "irem"}, - {(functionptr) asm_builtin_irem, "irem"}, - {(functionptr) builtin_ladd, "ladd"}, - {(functionptr) builtin_lsub, "lsub"}, - {(functionptr) builtin_lmul, "lmul"}, - {(functionptr) builtin_ldiv, "ldiv"}, - {(functionptr) asm_builtin_ldiv, "ldiv"}, - {(functionptr) builtin_lrem, "lrem"}, - {(functionptr) asm_builtin_lrem, "lrem"}, - {(functionptr) builtin_lshl, "lshl"}, - {(functionptr) builtin_lshr, "lshr"}, - {(functionptr) builtin_lushr, "lushr"}, - {(functionptr) builtin_land, "land"}, - {(functionptr) builtin_lor, "lor"}, - {(functionptr) builtin_lxor, "lxor"}, - {(functionptr) builtin_lneg, "lneg"}, - {(functionptr) builtin_lcmp, "lcmp"}, - {(functionptr) builtin_fadd, "fadd"}, - {(functionptr) builtin_fsub, "fsub"}, - {(functionptr) builtin_fmul, "fmul"}, - {(functionptr) builtin_fdiv, "fdiv"}, - {(functionptr) builtin_frem, "frem"}, - {(functionptr) builtin_fneg, "fneg"}, - {(functionptr) builtin_fcmpl, "fcmpl"}, - {(functionptr) builtin_fcmpg, "fcmpg"}, - {(functionptr) builtin_dadd, "dadd"}, - {(functionptr) builtin_dsub, "dsub"}, - {(functionptr) builtin_dmul, "dmul"}, - {(functionptr) builtin_ddiv, "ddiv"}, - {(functionptr) builtin_drem, "drem"}, - {(functionptr) builtin_dneg, "dneg"}, - {(functionptr) builtin_dcmpl, "dcmpl"}, - {(functionptr) builtin_dcmpg, "dcmpg"}, - {(functionptr) builtin_i2l, "i2l"}, - {(functionptr) builtin_i2f, "i2f"}, - {(functionptr) builtin_i2d, "i2d"}, - {(functionptr) builtin_l2i, "l2i"}, - {(functionptr) builtin_l2f, "l2f"}, - {(functionptr) builtin_l2d, "l2d"}, - {(functionptr) builtin_f2i, "f2i"}, - {(functionptr) builtin_f2l, "f2l"}, - {(functionptr) builtin_f2d, "f2d"}, - {(functionptr) builtin_d2i, "d2i"}, - {(functionptr) builtin_d2l, "d2l"}, - {(functionptr) builtin_d2f, "d2f"}, - {(functionptr) NULL, "unknown"} - }; +#include "threads/locks.h" +#include "toolbox/logging.h" +#include "toolbox/memory.h" +#include "nat/java_lang_Cloneable.h" +#include "nat/java_lang_VMObject.h" + +#undef DEBUG /*define DEBUG 1*/ + +THREADSPECIFIC methodinfo* _threadrootmethod = NULL; +THREADSPECIFIC void *_thread_nativestackframeinfo=NULL; /***************************************************************************** - TYPCHECKS + TYPE CHECKS *****************************************************************************/ -/*************** interne Funktion: builtin_isanysubclass ********************* +/*************** internal function: builtin_isanysubclass ********************* - "uberpr"uft, ob eine Klasse eine Unterklasse einer anderen Klasse ist. - Dabei gelten auch Interfaces, die eine Klasse implementiert, als - deren Oberklassen. - R"uckgabewert: 1 ... es trifft zu - 0 ... es trifft nicht zu - -*****************************************************************************/ + Checks a subclass relation between two classes. Implemented interfaces + are interpreted as super classes. + Return value: 1 ... sub is subclass of super + 0 ... otherwise + +*****************************************************************************/ +s4 builtin_isanysubclass(classinfo *sub, classinfo *super) +{ + s4 res; + castinfo classvalues; -static s4 builtin_isanysubclass (classinfo *sub, classinfo *super) -{ + /*classinfo *tmp;*/ if (super->flags & ACC_INTERFACE) return (sub->vftbl->interfacetablelength > super->index) && - (sub->vftbl->interfacetable[-super->index] != NULL); + (sub->vftbl->interfacetable[-super->index] != NULL); + + /* + while (sub != 0) + if (sub == super) + return 1; + else + sub = sub->super; + + return 0; + */ + +/* + for (tmp=sub;tmp!=0;tmp=tmp->super) { + printf("->"); + utf_display(tmp->name); + } + printf("\n\n"); + + for (tmp=super;tmp!=0;tmp=tmp->super) { + printf("->"); + utf_display(tmp->name); + } + printf("\n"); + + + printf("sub->vftbl->baseval %d, super->vftbl->baseval %d\n diff %d, super->vftbl->diffval %d\n", + sub->vftbl->baseval, super->vftbl->baseval, (unsigned)(sub->vftbl->baseval - super->vftbl->baseval), + super->vftbl->diffval); */ + + asm_getclassvalues_atomic(super->vftbl, sub->vftbl, &classvalues); + + res = (unsigned) (classvalues.sub_baseval - classvalues.super_baseval) <= + (unsigned) classvalues.super_diffval; + + return res; +} + +s4 builtin_isanysubclass_vftbl(vftbl_t *sub,vftbl_t *super) +{ + s4 res; + int base; + castinfo classvalues; + + asm_getclassvalues_atomic(super, sub, &classvalues); - return (unsigned) (sub->vftbl->baseval - super->vftbl->baseval) <= - (unsigned) (super->vftbl->diffval); + if ((base = classvalues.super_baseval) <= 0) + /* super is an interface */ + res = (sub->interfacetablelength > -base) && + (sub->interfacetable[base] != NULL); + else + res = (unsigned) (classvalues.sub_baseval - classvalues.super_baseval) + <= (unsigned) classvalues.super_diffval; + + return res; } -/****************** Funktion: builtin_instanceof ***************************** +/****************** function: builtin_instanceof ***************************** - "Uberpr"uft, ob ein Objekt eine Instanz einer Klasse (oder einer davon - abgeleiteten Klasse) ist, oder ob die Klasse des Objekts ein Interface - implementiert. - Return: 1, wenn ja - 0, wenn nicht, oder wenn Objekt ein NULL-Zeiger - + Checks if an object is an instance of some given class (or subclass of + that class). If class is an interface, checks if the interface is + implemented. + Return value: 1 ... obj is an instance of class or implements the interface + 0 ... otherwise or if obj == NULL + *****************************************************************************/ +/* XXX should use vftbl */ s4 builtin_instanceof(java_objectheader *obj, classinfo *class) { #ifdef DEBUG log_text ("builtin_instanceof called"); -#endif - +#endif if (!obj) return 0; return builtin_isanysubclass (obj->vftbl->class, class); } -/**************** Funktion: builtin_checkcast ******************************* +/**************** function: builtin_checkcast ******************************* - "Uberpr"uft, ob ein Objekt eine Instanz einer Klasse (oder einer davon - abgeleiteten Klasse ist). - Unterschied zu builtin_instanceof: Ein NULL-Zeiger ist immer richtig - Return: 1, wenn ja, oder wenn Objekt ein NULL-Zeiger - 0, wenn nicht - + The same as builtin_instanceof except that 1 is returned when + obj == NULL + ****************************************************************************/ +/* XXX should use vftbl */ s4 builtin_checkcast(java_objectheader *obj, classinfo *class) { #ifdef DEBUG - log_text ("builtin_checkcast called"); + log_text("builtin_checkcast called"); #endif if (obj == NULL) return 1; - if (builtin_isanysubclass (obj->vftbl->class, class)) + if (builtin_isanysubclass(obj->vftbl->class, class)) return 1; #if DEBUG - printf ("#### checkcast failed "); - unicode_display (obj->vftbl->class->name); - printf (" -> "); - unicode_display (class->name); - printf ("\n"); + printf("#### checkcast failed "); + utf_display(obj->vftbl->class->name); + printf(" -> "); + utf_display(class->name); + printf("\n"); #endif return 0; } -/*********** interne Funktion: builtin_descriptorscompatible ****************** +/*********** internal function: builtin_descriptorscompatible ****************** - "uberpr"uft, ob zwei Array-Typdescriptoren compartible sind, d.h., - ob ein Array vom Typ 'desc' gefahrlos einer Variblen vom Typ 'target' - zugewiesen werden kann. - Return: 1, wenn ja - 0, wenn nicht - + Checks if two array type descriptors are assignment compatible + Return value: 1 ... target = desc is possible + 0 ... otherwise + ******************************************************************************/ -static s4 builtin_descriptorscompatible - (constant_arraydescriptor *desc, constant_arraydescriptor *target) +static s4 builtin_descriptorscompatible(arraydescriptor *desc,arraydescriptor *target) { if (desc==target) return 1; if (desc->arraytype != target->arraytype) return 0; - switch (target->arraytype) { - case ARRAYTYPE_OBJECT: - return builtin_isanysubclass (desc->objectclass, target->objectclass); - case ARRAYTYPE_ARRAY: - return builtin_descriptorscompatible - (desc->elementdescriptor, target->elementdescriptor); - default: return 1; - } -} - + if (desc->arraytype != ARRAYTYPE_OBJECT) return 1; + + /* {both arrays are arrays of references} */ + if (desc->dimension == target->dimension) { + /* an array which contains elements of interface types is allowed to be casted to Object (JOWENN)*/ + if ( (desc->elementvftbl->baseval<0) && (target->elementvftbl->baseval==1) ) return 1; + return builtin_isanysubclass_vftbl(desc->elementvftbl,target->elementvftbl); + } + if (desc->dimension < target->dimension) return 0; + /* {desc has higher dimension than target} */ + return builtin_isanysubclass_vftbl(pseudo_class_Arraystub_vftbl,target->elementvftbl); +} -/******************** Funktion: builtin_checkarraycast *********************** - "uberpr"uft, ob ein gegebenes Objekt tats"achlich von einem - Untertyp des geforderten Arraytyps ist. - Dazu muss das Objekt auf jeden Fall ein Array sein. - Bei einfachen Arrays (int,short,double,etc.) muss der Typ genau - "ubereinstimmen. - Bei Arrays von Objekten muss der Elementtyp des tats"achlichen Arrays - ein Untertyp (oder der selbe Typ) vom geforderten Elementtyp sein. - Bei Arrays vom Arrays (die eventuell wieder Arrays von Arrays - sein k"onnen) m"ussen die untersten Elementtypen in der entsprechenden - Unterklassenrelation stehen. +/******************** function: builtin_checkarraycast *********************** - Return: 1, wenn Cast in Ordung ist - 0, wenn es nicht geht + Checks if an object is really a subtype of the requested array type. + The object has to be an array to begin with. For simple arrays (int, short, + double, etc.) the types have to match exactly. + For arrays of objects, the type of elements in the array has to be a + subtype (or the same type) of the requested element type. For arrays of + arrays (which in turn can again be arrays of arrays), the types at the + lowest level have to satisfy the corresponding sub class relation. - Achtung: ein Cast mit einem NULL-Zeiger geht immer gut. + Return value: 1 ... cast is possible + 0 ... otherwise + + ATTENTION: a cast with a NULL pointer is always possible. *****************************************************************************/ -s4 builtin_checkarraycast(java_objectheader *o, constant_arraydescriptor *desc) +s4 builtin_checkarraycast(java_objectheader *o, vftbl_t *target) { - java_arrayheader *a = (java_arrayheader*) o; - - if (!o) return 1; - if (o->vftbl->class != class_array) { - return 0; - } - - if (a->arraytype != desc->arraytype) { - return 0; - } + arraydescriptor *desc; - switch (a->arraytype) { - case ARRAYTYPE_OBJECT: { - java_objectarray *oa = (java_objectarray*) o; - return builtin_isanysubclass (oa->elementtype, desc->objectclass); - } - case ARRAYTYPE_ARRAY: { - java_arrayarray *aa = (java_arrayarray*) o; - return builtin_descriptorscompatible - (aa->elementdescriptor, desc->elementdescriptor); - } - default: - return 1; - } + if (!o) return 1; + if ((desc = o->vftbl->arraydesc) == NULL) return 0; + + return builtin_descriptorscompatible(desc, target->arraydesc); } -s4 builtin_arrayinstanceof - (java_objectheader *obj, constant_arraydescriptor *desc) +s4 builtin_arrayinstanceof(java_objectheader *obj, vftbl_t *target) { if (!obj) return 1; - return builtin_checkarraycast (obj, desc); + return builtin_checkarraycast(obj, target); } @@ -275,714 +263,852 @@ s4 builtin_arrayinstanceof ******************************************************************************/ -java_objectheader *builtin_throw_exception (java_objectheader *exceptionptr) { - unicode_display (exceptionptr->vftbl->class->name); - printf ("\n"); - fflush (stdout); - return exceptionptr; +java_objectheader *builtin_throw_exception(java_objectheader *xptr) +{ + if (verbose) { + char logtext[MAXLOGTEXT]; + sprintf(logtext, "Builtin exception thrown: "); + if (xptr) { + java_lang_Throwable *t = (java_lang_Throwable *) xptr; + + utf_sprint_classname(logtext + strlen(logtext), + xptr->vftbl->class->name); + + if (t->detailMessage) { + sprintf(logtext + strlen(logtext), ": %s", + javastring_tochar(t->detailMessage)); + } + + } else { + sprintf(logtext + strlen(logtext), "Error: "); + } + log_text(logtext); + } + + *exceptionptr = xptr; + + return xptr; } -/******************* Funktion: builtin_canstore ******************************* - "uberpr"uft, ob ein Objekt in einem Array gespeichert werden - darf. - Return: 1, wenn es geht - 0, wenn nicht +/******************* function: builtin_canstore ******************************* -******************************************************************************/ + Checks, if an object can be stored in an array. + Return value: 1 ... possible + 0 ... otherwise +******************************************************************************/ s4 builtin_canstore (java_objectarray *a, java_objectheader *o) { + arraydescriptor *desc; + arraydescriptor *valuedesc; + vftbl_t *componentvftbl; + vftbl_t *valuevftbl; + int dim_m1; + int base; + castinfo classvalues; + if (!o) return 1; + + /* The following is guaranteed (by verifier checks): + * + * *) a->...vftbl->arraydesc != NULL + * *) a->...vftbl->arraydesc->componentvftbl != NULL + * *) o->vftbl is not an interface vftbl + */ - switch (a->header.arraytype) { - case ARRAYTYPE_OBJECT: - if ( ! builtin_checkcast (o, a->elementtype) ) { - return 0; - } - return 1; - break; + desc = a->header.objheader.vftbl->arraydesc; + componentvftbl = desc->componentvftbl; + valuevftbl = o->vftbl; - case ARRAYTYPE_ARRAY: - if ( ! builtin_checkarraycast - (o, ((java_arrayarray*)a)->elementdescriptor) ) { - return 0; - } - return 1; - break; + if ((dim_m1 = desc->dimension - 1) == 0) { + s4 res; - default: - panic ("builtin_canstore called with invalid arraytype"); + /* {a is a one-dimensional array} */ + /* {a is an array of references} */ + + if (valuevftbl == componentvftbl) + return 1; + + asm_getclassvalues_atomic(componentvftbl, valuevftbl, &classvalues); + + if ((base = classvalues.super_baseval) <= 0) + /* an array of interface references */ + return (valuevftbl->interfacetablelength > -base && + valuevftbl->interfacetable[base] != NULL); + + res = (unsigned) (classvalues.sub_baseval - classvalues.super_baseval) + <= (unsigned) classvalues.super_diffval; + + return res; + } + /* {a has dimension > 1} */ + /* {componentvftbl->arraydesc != NULL} */ + + /* check if o is an array */ + if ((valuedesc = valuevftbl->arraydesc) == NULL) return 0; - } + /* {o is an array} */ + + return builtin_descriptorscompatible(valuedesc,componentvftbl->arraydesc); } +/* This is an optimized version where a is guaranteed to be one-dimensional */ +s4 builtin_canstore_onedim (java_objectarray *a, java_objectheader *o) +{ + arraydescriptor *desc; + vftbl_t *elementvftbl; + vftbl_t *valuevftbl; + s4 res; + int base; + castinfo classvalues; + + if (!o) return 1; -/***************************************************************************** - ARRAYOPERATIONEN -*****************************************************************************/ + /* The following is guaranteed (by verifier checks): + * + * *) a->...vftbl->arraydesc != NULL + * *) a->...vftbl->arraydesc->elementvftbl != NULL + * *) a->...vftbl->arraydesc->dimension == 1 + * *) o->vftbl is not an interface vftbl + */ + + desc = a->header.objheader.vftbl->arraydesc; + elementvftbl = desc->elementvftbl; + valuevftbl = o->vftbl; + + /* {a is a one-dimensional array} */ + + if (valuevftbl == elementvftbl) + return 1; + + asm_getclassvalues_atomic(elementvftbl, valuevftbl, &classvalues); + + if ((base = classvalues.super_baseval) <= 0) + /* an array of interface references */ + return (valuevftbl->interfacetablelength > -base && + valuevftbl->interfacetable[base] != NULL); + + res = (unsigned) (classvalues.sub_baseval - classvalues.super_baseval) + <= (unsigned) classvalues.super_diffval; + + return res; +} + + +/* This is an optimized version where a is guaranteed to be a + * one-dimensional array of a class type */ +s4 builtin_canstore_onedim_class(java_objectarray *a, java_objectheader *o) +{ + vftbl_t *elementvftbl; + vftbl_t *valuevftbl; + s4 res; + castinfo classvalues; + + if (!o) return 1; + + /* The following is guaranteed (by verifier checks): + * + * *) a->...vftbl->arraydesc != NULL + * *) a->...vftbl->arraydesc->elementvftbl != NULL + * *) a->...vftbl->arraydesc->elementvftbl is not an interface vftbl + * *) a->...vftbl->arraydesc->dimension == 1 + * *) o->vftbl is not an interface vftbl + */ + + elementvftbl = a->header.objheader.vftbl->arraydesc->elementvftbl; + valuevftbl = o->vftbl; + + /* {a is a one-dimensional array} */ + + if (valuevftbl == elementvftbl) + return 1; + + asm_getclassvalues_atomic(elementvftbl, valuevftbl, &classvalues); + res = (unsigned) (classvalues.sub_baseval - classvalues.super_baseval) + <= (unsigned) classvalues.super_diffval; + + return res; +} -/******************** Funktion: builtin_new ********************************** +/******************** Function: builtin_new ********************************** - Legt ein neues Objekt einer Klasse am Heap an. - Return: Der Zeiger auf das Objekt, oder NULL, wenn kein Speicher - mehr frei ist. + Creates a new instance of class c on the heap. + Return value: pointer to the object or NULL if no memory is + available *****************************************************************************/ #define ALIGNMENT 3 #define align_size(size) ((size + ((1 << ALIGNMENT) - 1)) & ~((1 << ALIGNMENT) - 1)) -java_objectheader *builtin_new (classinfo *c) +java_objectheader *builtin_new(classinfo *c) { java_objectheader *o; + /* is the class loaded */ + if (!c->loaded) + if (!class_load(c)) + return NULL; + + /* is the class linked */ + if (!c->linked) + if (!class_link(c)) + return NULL; + + if (!c->initialized) { + if (initverbose) + log_message_class("Initialize class (from builtin_new): ", c); + + if (!class_init(c)) + return NULL; + } + #ifdef SIZE_FROM_CLASSINFO c->alignedsize = align_size(c->instancesize); - o = heap_allocate ( c->alignedsize, true, c->finalizer ); + o = heap_allocate(c->alignedsize, true, c->finalizer); #else - o = heap_allocate ( c->instancesize, true, c->finalizer ); + o = heap_allocate(c->instancesize, true, c->finalizer); +#endif + + if (!o) + return NULL; + + memset(o, 0, c->instancesize); + + o->vftbl = c->vftbl; +#if defined(USE_THREADS) && defined(NATIVE_THREADS) + initObjectLock(o); #endif - if (!o) return NULL; - - memset (o, 0, c->instancesize); - o -> vftbl = c -> vftbl; return o; } +/********************** Function: builtin_newarray ************************** -/******************** Funktion: builtin_anewarray **************************** + Creates an array with the given vftbl on the heap. - Legt ein Array von Zeigern auf Objekte am Heap an. - Parameter: - size ......... Anzahl der Elemente - elementtype .. ein Zeiger auf die classinfo-Struktur des Typs - der Elemente + Return value: pointer to the array or NULL if no memory is available - Return: Zeiger auf das Array, oder NULL (wenn kein Speicher frei) + CAUTION: The given vftbl must be the vftbl of the *array* class, + not of the element class. *****************************************************************************/ -static -void* __builtin_newarray(s4 base_size, - s4 size, - bool references, - int elementsize, - int arraytype) +java_arrayheader *builtin_newarray(s4 size, vftbl_t *arrayvftbl) { java_arrayheader *a; -#ifdef SIZE_FROM_CLASSINFO - s4 alignedsize = align_size(base_size + (size-1) * elementsize); - a = heap_allocate ( alignedsize, true, NULL ); -#else - a = heap_allocate ( sizeof(java_objectarray) + (size-1) * elementsize, - references, - NULL); -#endif - if (!a) return NULL; + arraydescriptor *desc; + s4 dataoffset; + s4 componentsize; + s4 actualsize; + + desc = arrayvftbl->arraydesc; + dataoffset = desc->dataoffset; + componentsize = desc->componentsize; + + if (size < 0) { + *exceptionptr = + new_exception(string_java_lang_NegativeArraySizeException); + return NULL; + } #ifdef SIZE_FROM_CLASSINFO - memset(a, 0, alignedsize); + actualsize = align_size(dataoffset + size * componentsize); + actualsize = dataoffset + size * componentsize; #else - memset(a, 0, base_size + (size-1) * elementsize); -#endif - - a -> objheader.vftbl = class_array -> vftbl; - a -> size = size; -#ifdef SIZE_FROM_CLASSINFO - a -> alignedsize = alignedsize; + actualsize = 0; #endif - a -> arraytype = arraytype; - return a; -} + if (((u4) actualsize) < ((u4) size)) { /* overflow */ + *exceptionptr = new_exception(string_java_lang_OutOfMemoryError); + return NULL; + } + a = heap_allocate(actualsize, + (desc->arraytype == ARRAYTYPE_OBJECT), + NULL); -java_objectarray *builtin_anewarray (s4 size, classinfo *elementtype) -{ - java_objectarray *a; - a = (java_objectarray*)__builtin_newarray(sizeof(java_objectarray), - size, - true, - sizeof(void*), - ARRAYTYPE_OBJECT); - if (!a) return NULL; + if (!a) + return NULL; + + memset(a, 0, actualsize); + + a->objheader.vftbl = arrayvftbl; +#if defined(USE_THREADS) && defined(NATIVE_THREADS) + initObjectLock(&a->objheader); +#endif + a->size = size; +#ifdef SIZE_FROM_CLASSINFO + a->alignedsize = actualsize; +#endif - a -> elementtype = elementtype; return a; } +/********************** Function: builtin_anewarray ************************* -/******************** Funktion: builtin_newarray_array *********************** + Creates an array of references to the given class type on the heap. - Legt ein Array von Zeigern auf Arrays am Heap an. - Paramter: size ......... Anzahl der Elemente - elementdesc .. Zeiger auf die Arraybeschreibungs-Struktur f"ur - die Element-Arrays. + Return value: pointer to the array or NULL if no memory is available - Return: Zeiger auf das Array, oder NULL + XXX This function does not do The Right Thing, because it uses a + classinfo pointer at runtime. builtin_newarray should be used + instead. *****************************************************************************/ -java_arrayarray *builtin_newarray_array - (s4 size, constant_arraydescriptor *elementdesc) +java_objectarray *builtin_anewarray(s4 size, classinfo *component) { - java_arrayarray *a; - a = (java_arrayarray*)__builtin_newarray(sizeof(java_arrayarray), - size, - true, - sizeof(void*), - ARRAYTYPE_ARRAY); - if (!a) return NULL; + /* is class loaded */ + if (!component->loaded) + if (!class_load(component)) + return NULL; - a -> elementdescriptor = elementdesc; - return a; + /* is class linked */ + if (!component->linked) + if (!class_link(component)) + return NULL; + + return (java_objectarray *) builtin_newarray(size, class_array_of(component)->vftbl); } -/******************** Funktion: builtin_newarray_boolean ************************ +/******************** Function: builtin_newarray_int *********************** - Legt ein Array von Bytes am Heap an, das allerdings als Boolean-Array - gekennzeichnet wird (wichtig bei Casts!) + Creates an array of 32 bit Integers on the heap. - Return: Zeiger auf das Array, oder NULL + Return value: pointer to the array or NULL if no memory is available *****************************************************************************/ -java_booleanarray *builtin_newarray_boolean (s4 size) +java_intarray *builtin_newarray_int(s4 size) { - java_booleanarray *a; - a = (java_booleanarray*)__builtin_newarray(sizeof(java_booleanarray), - size, - false, - sizeof(u1), - ARRAYTYPE_BOOLEAN); - return a; + return (java_intarray*) builtin_newarray(size, primitivetype_table[ARRAYTYPE_INT].arrayvftbl); } -/******************** Funktion: builtin_newarray_char ************************ - Legt ein Array von 16-bit-Integers am Heap an. - Return: Zeiger auf das Array, oder NULL +/******************** Function: builtin_newarray_long *********************** + + Creates an array of 64 bit Integers on the heap. + + Return value: pointer to the array or NULL if no memory is available *****************************************************************************/ -java_chararray *builtin_newarray_char (s4 size) +java_longarray *builtin_newarray_long(s4 size) { - java_chararray *a; - a = (java_chararray*)__builtin_newarray(sizeof(java_chararray), - size, - false, - sizeof(u2), - ARRAYTYPE_CHAR); - return a; + return (java_longarray*) builtin_newarray(size, primitivetype_table[ARRAYTYPE_LONG].arrayvftbl); } -/******************** Funktion: builtin_newarray_float *********************** +/******************** function: builtin_newarray_float *********************** - Legt ein Array von 32-bit-IEEE-float am Heap an. - Return: Zeiger auf das Array, oder NULL + Creates an array of 32 bit IEEE floats on the heap. + + Return value: pointer to the array or NULL if no memory is available *****************************************************************************/ -java_floatarray *builtin_newarray_float (s4 size) +java_floatarray *builtin_newarray_float(s4 size) { - java_floatarray *a; - a = (java_floatarray*)__builtin_newarray(sizeof(java_floatarray), - size, - false, - sizeof(float), - ARRAYTYPE_FLOAT); - return a; + return (java_floatarray*) builtin_newarray(size, primitivetype_table[ARRAYTYPE_FLOAT].arrayvftbl); } -/******************** Funktion: builtin_newarray_double *********************** +/******************** function: builtin_newarray_double *********************** + + Creates an array of 64 bit IEEE floats on the heap. - Legt ein Array von 64-bit-IEEE-float am Heap an. - Return: Zeiger auf das Array, oder NULL + Return value: pointer to the array or NULL if no memory is available *****************************************************************************/ -java_doublearray *builtin_newarray_double (s4 size) +java_doublearray *builtin_newarray_double(s4 size) { - java_doublearray *a; - a = (java_doublearray*)__builtin_newarray(sizeof(java_doublearray), - size, - false, - sizeof(double), - ARRAYTYPE_DOUBLE); - return a; + return (java_doublearray*) builtin_newarray(size, primitivetype_table[ARRAYTYPE_DOUBLE].arrayvftbl); } +/******************** function: builtin_newarray_byte *********************** + Creates an array of 8 bit Integers on the heap. -/******************** Funktion: builtin_newarray_byte *********************** - - Legt ein Array von 8-bit-Integers am Heap an. - Return: Zeiger auf das Array, oder NULL + Return value: pointer to the array or NULL if no memory is available *****************************************************************************/ -java_bytearray *builtin_newarray_byte (s4 size) +java_bytearray *builtin_newarray_byte(s4 size) { - java_bytearray *a; - a = (java_bytearray*)__builtin_newarray(sizeof(java_bytearray), - size, - false, - sizeof(u1), - ARRAYTYPE_BYTE); - return a; + return (java_bytearray*) builtin_newarray(size, primitivetype_table[ARRAYTYPE_BYTE].arrayvftbl); } -/******************** Funktion: builtin_newarray_short *********************** +/******************** function: builtin_newarray_char ************************ + + Creates an array of characters on the heap. - Legt ein Array von 16-bit-Integers am Heap an. - Return: Zeiger auf das Array, oder NULL + Return value: pointer to the array or NULL if no memory is available *****************************************************************************/ -java_shortarray *builtin_newarray_short (s4 size) +java_chararray *builtin_newarray_char(s4 size) { - java_shortarray *a; - a = (java_shortarray*)__builtin_newarray(sizeof(java_shortarray), - size, - false, - sizeof(s2), - ARRAYTYPE_SHORT); - return a; + return (java_chararray*) builtin_newarray(size, primitivetype_table[ARRAYTYPE_CHAR].arrayvftbl); } -/******************** Funktion: builtin_newarray_int *********************** +/******************** function: builtin_newarray_short *********************** + + Creates an array of 16 bit Integers on the heap. - Legt ein Array von 32-bit-Integers am Heap an. - Return: Zeiger auf das Array, oder NULL + Return value: pointer to the array or NULL if no memory is available *****************************************************************************/ -java_intarray *builtin_newarray_int (s4 size) +java_shortarray *builtin_newarray_short(s4 size) { - java_intarray *a; - a = (java_intarray*)__builtin_newarray(sizeof(java_intarray), - size, - false, - sizeof(s4), - ARRAYTYPE_INT); - return a; + return (java_shortarray*) builtin_newarray(size, primitivetype_table[ARRAYTYPE_SHORT].arrayvftbl); } -/******************** Funktion: builtin_newarray_long *********************** +/******************** function: builtin_newarray_boolean ************************ - Legt ein Array von 64-bit-Integers am Heap an. - Return: Zeiger auf das Array, oder NULL + Creates an array of bytes on the heap. The array is designated as an array + of booleans (important for casts) + + Return value: pointer to the array or NULL if no memory is available *****************************************************************************/ -java_longarray *builtin_newarray_long (s4 size) +java_booleanarray *builtin_newarray_boolean(s4 size) { - java_longarray *a; - a = (java_longarray*)__builtin_newarray(sizeof(java_longarray), - size, - false, - sizeof(s8), - ARRAYTYPE_LONG); - return a; + return (java_booleanarray*) builtin_newarray(size, primitivetype_table[ARRAYTYPE_BOOLEAN].arrayvftbl); } +/**************** function: builtin_nmultianewarray *************************** -/***************** Funktion: builtin_multianewarray *************************** + Creates a multi-dimensional array on the heap. The dimensions are passed in + an array of longs. - Legt ein mehrdimensionales Array am Heap an. - Die Gr"ossen der einzelnen Dimensionen werden in einem Integerarray - "ubergeben. Der Typ es zu erzeugenden Arrays wird als - Referenz auf eine constant_arraydescriptor - Struktur "ubergeben. + Arguments: + n............number of dimensions to create + arrayvftbl...vftbl of the array class + dims.........array containing the size of each dimension to create - Return: Ein Zeiger auf das Array, oder NULL, wenn kein Speicher mehr - vorhanden ist. + Return value: pointer to the array or NULL if no memory is available ******************************************************************************/ - /* Hilfsfunktion */ - -static java_arrayheader *multianewarray_part (java_intarray *dims, int thisdim, - constant_arraydescriptor *desc) +java_arrayheader *builtin_nmultianewarray(int n, vftbl_t *arrayvftbl, long *dims) +/* java_arrayheader *builtin_nmultianewarray(int n, classinfo *arrayclass, long *dims) */ { - u4 size,i; - java_arrayarray *a; + s4 size, i; + java_arrayheader *a; + vftbl_t *componentvftbl; + +/* utf_display(arrayclass->name); */ - size = dims -> data[thisdim]; +/* class_load(arrayclass); */ +/* class_link(arrayclass); */ - if (thisdim == (dims->header.size-1)) { - /* letzte Dimension schon erreicht */ - - switch (desc -> arraytype) { - case ARRAYTYPE_BOOLEAN: - return (java_arrayheader*) builtin_newarray_boolean (size); - case ARRAYTYPE_CHAR: - return (java_arrayheader*) builtin_newarray_char (size); - case ARRAYTYPE_FLOAT: - return (java_arrayheader*) builtin_newarray_float (size); - case ARRAYTYPE_DOUBLE: - return (java_arrayheader*) builtin_newarray_double (size); - case ARRAYTYPE_BYTE: - return (java_arrayheader*) builtin_newarray_byte (size); - case ARRAYTYPE_SHORT: - return (java_arrayheader*) builtin_newarray_short (size); - case ARRAYTYPE_INT: - return (java_arrayheader*) builtin_newarray_int (size); - case ARRAYTYPE_LONG: - return (java_arrayheader*) builtin_newarray_long (size); - case ARRAYTYPE_OBJECT: - return (java_arrayheader*) builtin_anewarray (size, desc->objectclass); - - case ARRAYTYPE_ARRAY: - return (java_arrayheader*) builtin_newarray_array (size, desc->elementdescriptor); - - default: panic ("Invalid arraytype in multianewarray"); - } - } + /* create this dimension */ + size = (s4) dims[0]; + a = builtin_newarray(size, arrayvftbl); +/* a = builtin_newarray(size, arrayclass->vftbl); */ - /* wenn letzte Dimension noch nicht erreicht wurde */ + if (!a) + return NULL; - if (desc->arraytype != ARRAYTYPE_ARRAY) - panic ("multianewarray with too many dimensions"); + /* if this is the last dimension return */ + if (!--n) + return a; - a = builtin_newarray_array (size, desc->elementdescriptor); - if (!a) return NULL; - - for (i=0; iarraydesc->componentvftbl; +/* component = arrayclass->vftbl->arraydesc; */ + + /* The verifier guarantees this. */ + /* if (!componentvftbl) */ + /* panic ("multianewarray with too many dimensions"); */ + + /* create the component arrays */ + for (i = 0; i < size; i++) { java_arrayheader *ea = - multianewarray_part (dims, thisdim+1, desc->elementdescriptor); - if (!ea) return NULL; + builtin_nmultianewarray(n, componentvftbl, dims + 1); - a -> data[i] = ea; - } + if (!ea) + return NULL; - return (java_arrayheader*) a; + ((java_objectarray *) a)->data[i] = (java_objectheader *) ea; + } + + return a; } -java_arrayheader *builtin_multianewarray (java_intarray *dims, - constant_arraydescriptor *desc) -{ - return multianewarray_part (dims, 0, desc); -} +/***************************************************************************** + METHOD LOGGING + Various functions for printing a message at method entry or exit (for + debugging) + +*****************************************************************************/ -static java_arrayheader *nmultianewarray_part (int n, long *dims, int thisdim, - constant_arraydescriptor *desc) +u4 methodindent = 0; + +java_objectheader *builtin_trace_exception(java_objectheader *xptr, + methodinfo *m, + void *pos, + s4 line, + s4 noindent) { - int size, i; - java_arrayarray *a; + if (!noindent) { + if (methodindent) + methodindent--; + else + log_text("WARNING: unmatched methodindent--"); + } + if (verbose || runverbose || verboseexception) { + if (xptr) { + printf("Exception "); + utf_display_classname(xptr->vftbl->class->name); - size = (int) dims[thisdim]; - - if (thisdim == (n - 1)) { - /* letzte Dimension schon erreicht */ - - switch (desc -> arraytype) { - case ARRAYTYPE_BOOLEAN: - return (java_arrayheader*) builtin_newarray_boolean(size); - case ARRAYTYPE_CHAR: - return (java_arrayheader*) builtin_newarray_char(size); - case ARRAYTYPE_FLOAT: - return (java_arrayheader*) builtin_newarray_float(size); - case ARRAYTYPE_DOUBLE: - return (java_arrayheader*) builtin_newarray_double(size); - case ARRAYTYPE_BYTE: - return (java_arrayheader*) builtin_newarray_byte(size); - case ARRAYTYPE_SHORT: - return (java_arrayheader*) builtin_newarray_short(size); - case ARRAYTYPE_INT: - return (java_arrayheader*) builtin_newarray_int(size); - case ARRAYTYPE_LONG: - return (java_arrayheader*) builtin_newarray_long(size); - case ARRAYTYPE_OBJECT: - return (java_arrayheader*) builtin_anewarray(size, - desc->objectclass); - case ARRAYTYPE_ARRAY: - return (java_arrayheader*) builtin_newarray_array(size, - desc->elementdescriptor); - - default: panic ("Invalid arraytype in multianewarray"); + } else { + printf("Some Throwable"); } - } - - /* wenn letzte Dimension noch nicht erreicht wurde */ + printf(" thrown in "); - if (desc->arraytype != ARRAYTYPE_ARRAY) - panic ("multianewarray with too many dimensions"); + if (m) { + utf_display_classname(m->class->name); + printf("."); + utf_display(m->name); + if (m->flags & ACC_SYNCHRONIZED) + printf("(SYNC"); + else + printf("(NOSYNC"); + if (m->flags & ACC_NATIVE) { + printf(",NATIVE"); + printf(")(%p) at position %p\n", m->entrypoint, pos); + } else { + printf(")(%p) at position %p (", m->entrypoint, pos); + if (m->class->sourcefile==NULL) + printf(""); + else + utf_display(m->class->sourcefile); + printf(":%d)\n", line); + } - a = builtin_newarray_array(size, desc->elementdescriptor); - if (!a) return NULL; - - for (i = 0; i < size; i++) { - java_arrayheader *ea = - nmultianewarray_part(n, dims, thisdim + 1, desc->elementdescriptor); - if (!ea) return NULL; + } else + printf("call_java_method\n"); + fflush (stdout); + } - a -> data[i] = ea; - } - - return (java_arrayheader*) a; + return xptr; } -java_arrayheader *builtin_nmultianewarray (int size, - constant_arraydescriptor *desc, long *dims) +#ifdef TRACE_ARGS_NUM +void builtin_trace_args(s8 a0, s8 a1, s8 a2, s8 a3, s8 a4, s8 a5, +#if TRACE_ARGS_NUM > 6 + s8 a6, s8 a7, +#endif + methodinfo *m) { - (void) builtin_newarray_int(size); /* for compatibility with -old */ - return nmultianewarray_part (size, dims, 0, desc); -} + s4 i; + char logtext[MAXLOGTEXT]; + for (i = 0; i < methodindent; i++) + logtext[i] = '\t'; + + sprintf(logtext + methodindent, "called: "); + utf_sprint_classname(logtext + strlen(logtext), m->class->name); + sprintf(logtext + strlen(logtext), "."); + utf_sprint(logtext + strlen(logtext), m->name); + utf_sprint_classname(logtext + strlen(logtext), m->descriptor); + + if (m->flags & ACC_PUBLIC) sprintf(logtext + strlen(logtext), " PUBLIC"); + if (m->flags & ACC_PRIVATE) sprintf(logtext + strlen(logtext), " PRIVATE"); + if (m->flags & ACC_PROTECTED) sprintf(logtext + strlen(logtext), " PROTECTED"); + if (m->flags & ACC_STATIC) sprintf(logtext + strlen(logtext), " STATIC"); + if (m->flags & ACC_FINAL) sprintf(logtext + strlen(logtext), " FINAL"); + if (m->flags & ACC_SYNCHRONIZED) sprintf(logtext + strlen(logtext), " SYNCHRONIZED"); + if (m->flags & ACC_VOLATILE) sprintf(logtext + strlen(logtext), " VOLATILE"); + if (m->flags & ACC_TRANSIENT) sprintf(logtext + strlen(logtext), " TRANSIENT"); + if (m->flags & ACC_NATIVE) sprintf(logtext + strlen(logtext), " NATIVE"); + if (m->flags & ACC_INTERFACE) sprintf(logtext + strlen(logtext), " INTERFACE"); + if (m->flags & ACC_ABSTRACT) sprintf(logtext + strlen(logtext), " ABSTRACT"); + + sprintf(logtext + strlen(logtext), "("); + switch (m->paramcount) { + case 0: + break; +#if defined(__I386__) || defined(__POWERPC__) + case 1: + sprintf(logtext+strlen(logtext), "%llx", a0); + break; -/************************* Funktion: builtin_aastore ************************* + case 2: + sprintf(logtext+strlen(logtext), "%llx, %llx", a0, a1); + break; - speichert eine Referenz auf ein Objekt in einem Object-Array oder - in einem Array-Array. - Dabei wird allerdings vorher "uberpr"uft, ob diese Operation - zul"assig ist. + case 3: + sprintf(logtext+strlen(logtext), "%llx, %llx, %llx", a0, a1, a2); + break; - Return: 1, wenn alles OK ist - 0, wenn dieses Objekt nicht in dieses Array gespeichert werden - darf + case 4: + sprintf(logtext+strlen(logtext), "%llx, %llx, %llx, %llx", + a0, a1, a2, a3); + break; -*****************************************************************************/ + case 5: + sprintf(logtext+strlen(logtext), "%llx, %llx, %llx, %llx, %llx", + a0, a1, a2, a3, a4); + break; -s4 builtin_aastore (java_objectarray *a, s4 index, java_objectheader *o) -{ - if (builtin_canstore(a,o)) { - a->data[index] = o; - return 1; - } - return 0; -} + case 6: + sprintf(logtext+strlen(logtext), "%llx, %llx, %llx, %llx, %llx, %llx", + a0, a1, a2, a3, a4, a5); + break; +#if TRACE_ARGS_NUM > 6 + case 7: + sprintf(logtext+strlen(logtext), "%llx, %llx, %llx, %llx, %llx, %llx, %llx", + a0, a1, a2, a3, a4, a5, a6); + break; + case 8: + sprintf(logtext+strlen(logtext), "%llx, %llx, %llx, %llx, %llx, %llx, %llx, %llx", + a0, a1, a2, a3, a4, a5, a6, a7); + break; + default: + sprintf(logtext+strlen(logtext), "%llx, %llx, %llx, %llx, %llx, %llx, %llx, %llx, ...(%d)", + a0, a1, a2, a3, a4, a5, a6, a7, m->paramcount - 8); + break; +#else + default: + sprintf(logtext+strlen(logtext), "%llx, %llx, %llx, %llx, %llx, %llx, ...(%d)", + a0, a1, a2, a3, a4, a5, m->paramcount - 6); + break; +#endif +#else + case 1: + sprintf(logtext+strlen(logtext), "%lx", a0); + break; + case 2: + sprintf(logtext+strlen(logtext), "%lx, %lx", a0, a1); + break; + case 3: + sprintf(logtext+strlen(logtext), "%lx, %lx, %lx", a0, a1, a2); + break; -/***************************************************************************** - METHODEN-PROTOKOLLIERUNG + case 4: + sprintf(logtext+strlen(logtext), "%lx, %lx, %lx, %lx", + a0, a1, a2, a3); + break; - Verschiedene Funktionen, mit denen eine Meldung ausgegeben werden - kann, wann immer Methoden aufgerufen oder beendet werden. - (f"ur Debug-Zwecke) + case 5: + sprintf(logtext+strlen(logtext), "%lx, %lx, %lx, %lx, %lx", + a0, a1, a2, a3, a4); + break; -*****************************************************************************/ + case 6: + sprintf(logtext+strlen(logtext), "%lx, %lx, %lx, %lx, %lx, %lx", + a0, a1, a2, a3, a4, a5); + break; +#if TRACE_ARGS_NUM > 6 + case 7: + sprintf(logtext+strlen(logtext), "%lx, %lx, %lx, %lx, %lx, %lx, %lx", + a0, a1, a2, a3, a4, a5, a6); + break; -u4 methodindent=0; + case 8: + sprintf(logtext+strlen(logtext), "%lx, %lx, %lx, %lx, %lx, %lx, %lx, %lx", + a0, a1, a2, a3, a4, a5, a6, a7); + break; -java_objectheader *builtin_trace_exception (java_objectheader *exceptionptr, - methodinfo *method, int *pos, int noindent) { + default: + sprintf(logtext+strlen(logtext), "%lx, %lx, %lx, %lx, %lx, %lx, %lx, %lx, ...(%d)", + a0, a1, a2, a3, a4, a5, a6, a7, m->paramcount - 8); + break; +#else + default: + sprintf(logtext+strlen(logtext), "%lx, %lx, %lx, %lx, %lx, %lx, ...(%d)", + a0, a1, a2, a3, a4, a5, m->paramcount - 6); + break; +#endif +#endif + } - if (!noindent) - methodindent--; - if (verbose || runverbose) { - printf("Exception "); - unicode_display (exceptionptr->vftbl->class->name); - printf(" thrown in "); - if (method) { - unicode_display (method->class->name); - printf("."); - unicode_display (method->name); - if (method->flags & ACC_SYNCHRONIZED) - printf("(SYNC)"); - else - printf("(NOSYNC)"); - printf("(%p) at position %p\n", method->entrypoint, pos); - } - else - printf("call_java_method\n"); - fflush (stdout); - } - return exceptionptr; -} - - -void builtin_trace_args(long a0, long a1, long a2, long a3, long a4, long a5, - methodinfo *method) -{ - sprintf (logtext, " "); - sprintf (logtext+methodindent, "called: "); - unicode_sprint (logtext+strlen(logtext), method->class->name); - sprintf (logtext+strlen(logtext), "."); - unicode_sprint (logtext+strlen(logtext), method->name); - unicode_sprint (logtext+strlen(logtext), method->descriptor); - sprintf (logtext+strlen(logtext), "("); - switch (method->paramcount) { - case 6: - sprintf(logtext+strlen(logtext), "%lx, %lx, %lx, %lx, %lx, %lx", - a0, a1, a2, a3, a4, a5); - break; - case 5: - sprintf(logtext+strlen(logtext), "%lx, %lx, %lx, %lx, %lx", - a0, a1, a2, a3, a4); - break; - case 4: - sprintf(logtext+strlen(logtext), "%lx, %lx, %lx, %lx", - a0, a1, a2, a3); - break; - case 3: - sprintf(logtext+strlen(logtext), "%lx, %lx, %lx", a0, a1, a2); - break; - case 2: - sprintf(logtext+strlen(logtext), "%lx, %lx", a0, a1); - break; - case 1: - sprintf(logtext+strlen(logtext), "%lx", a0); - break; - } - sprintf (logtext+strlen(logtext), ")"); + sprintf(logtext + strlen(logtext), ")"); + log_text(logtext); - dolog (); methodindent++; } +#endif -void builtin_displaymethodstart(methodinfo *method) + +void builtin_displaymethodstart(methodinfo *m) { - sprintf (logtext, " "); - sprintf (logtext+methodindent, "called: "); - unicode_sprint (logtext+strlen(logtext), method->class->name); - sprintf (logtext+strlen(logtext), "."); - unicode_sprint (logtext+strlen(logtext), method->name); - unicode_sprint (logtext+strlen(logtext), method->descriptor); - dolog (); + char logtext[MAXLOGTEXT]; + sprintf(logtext, " "); + sprintf(logtext + methodindent, "called: "); + utf_sprint(logtext + strlen(logtext), m->class->name); + sprintf(logtext + strlen(logtext), "."); + utf_sprint(logtext + strlen(logtext), m->name); + utf_sprint(logtext + strlen(logtext), m->descriptor); + + if (m->flags & ACC_PUBLIC) sprintf(logtext + strlen(logtext), " PUBLIC"); + if (m->flags & ACC_PRIVATE) sprintf(logtext + strlen(logtext), " PRIVATE"); + if (m->flags & ACC_PROTECTED) sprintf(logtext + strlen(logtext), " PROTECTED"); + if (m->flags & ACC_STATIC) sprintf(logtext + strlen(logtext), " STATIC"); + if (m->flags & ACC_FINAL) sprintf(logtext + strlen(logtext), " FINAL"); + if (m->flags & ACC_SYNCHRONIZED) sprintf(logtext + strlen(logtext), " SYNCHRONIZED"); + if (m->flags & ACC_VOLATILE) sprintf(logtext + strlen(logtext), " VOLATILE"); + if (m->flags & ACC_TRANSIENT) sprintf(logtext + strlen(logtext), " TRANSIENT"); + if (m->flags & ACC_NATIVE) sprintf(logtext + strlen(logtext), " NATIVE"); + if (m->flags & ACC_INTERFACE) sprintf(logtext + strlen(logtext), " INTERFACE"); + if (m->flags & ACC_ABSTRACT) sprintf(logtext + strlen(logtext), " ABSTRACT"); + + log_text(logtext); methodindent++; } -void builtin_displaymethodstop(methodinfo *method, long l, double d) -{ - methodindent--; - sprintf (logtext, " "); - sprintf (logtext+methodindent, "finished: "); - unicode_sprint (logtext+strlen(logtext), method->class->name); - sprintf (logtext+strlen(logtext), "."); - unicode_sprint (logtext+strlen(logtext), method->name); - unicode_sprint (logtext+strlen(logtext), method->descriptor); - switch (method->returntype) { - case TYPE_INT: - case TYPE_LONG: - sprintf (logtext+strlen(logtext), "->%ld", l); - break; - case TYPE_FLOAT: - case TYPE_DOUBLE: - sprintf (logtext+strlen(logtext), "->%g", d); - break; - case TYPE_ADDRESS: - sprintf (logtext+strlen(logtext), "->%p", (void*) l); - break; - } - dolog (); -} -void builtin_displaymethodexception(methodinfo *method) +void builtin_displaymethodstop(methodinfo *m, s8 l, double d, float f) { - sprintf (logtext, " "); - sprintf (logtext+methodindent, "exception abort: "); - unicode_sprint (logtext+strlen(logtext), method->class->name); - sprintf (logtext+strlen(logtext), "."); - unicode_sprint (logtext+strlen(logtext), method->name); - unicode_sprint (logtext+strlen(logtext), method->descriptor); - dolog (); + int i; + char logtext[MAXLOGTEXT]; + for (i = 0; i < methodindent; i++) + logtext[i] = '\t'; + if (methodindent) + methodindent--; + else + log_text("WARNING: unmatched methodindent--"); + + sprintf(logtext + methodindent, "finished: "); + utf_sprint_classname(logtext + strlen(logtext), m->class->name); + sprintf(logtext + strlen(logtext), "."); + utf_sprint(logtext + strlen(logtext), m->name); + utf_sprint_classname(logtext + strlen(logtext), m->descriptor); + + switch (m->returntype) { + case TYPE_INT: + sprintf(logtext + strlen(logtext), "->%d", (s4) l); + break; + + case TYPE_LONG: +#if defined(__I386__) || defined(__POWERPC__) + sprintf(logtext + strlen(logtext), "->%lld", (s8) l); +#else + sprintf(logtext + strlen(logtext), "->%ld", (s8) l); +#endif + break; + + case TYPE_ADDRESS: +#if defined(__I386__) || defined(__POWERPC__) + sprintf(logtext + strlen(logtext), "->%p", (u1*) ((s4) l)); +#else + sprintf(logtext + strlen(logtext), "->%p", (u1*) l); +#endif + break; + + case TYPE_FLOAT: + sprintf(logtext + strlen(logtext), "->%g", f); + break; + + case TYPE_DOUBLE: + sprintf(logtext + strlen(logtext), "->%g", d); + break; + } + log_text(logtext); } /**************************************************************************** - SYNCHRONIZATION FUNCTIONS + SYNCHRONIZATION FUNCTIONS *****************************************************************************/ /* * Lock the mutex of an object. */ -#ifdef USE_THREADS -void -internal_lock_mutex_for_object (java_objectheader *object) +void internal_lock_mutex_for_object(java_objectheader *object) { - mutexHashEntry *entry; - int hashValue; +#if defined(USE_THREADS) && !defined(NATIVE_THREADS) + mutexHashEntry *entry; + int hashValue; - assert(object != 0); + assert(object != 0); - hashValue = MUTEX_HASH_VALUE(object); - entry = &mutexHashTable[hashValue]; + hashValue = MUTEX_HASH_VALUE(object); + entry = &mutexHashTable[hashValue]; - if (entry->object != 0) - { - if (entry->mutex.count == 0 && entry->conditionCount == 0) - { + if (entry->object != 0) { + if (entry->mutex.count == 0 && entry->conditionCount == 0) { entry->object = 0; entry->mutex.holder = 0; entry->mutex.count = 0; entry->mutex.muxWaiters = 0; - } - else - { - while (entry->next != 0 && entry->object != object) - entry = entry->next; - if (entry->object != object) - { - entry->next = firstFreeOverflowEntry; - firstFreeOverflowEntry = firstFreeOverflowEntry->next; + } else { + while (entry->next != 0 && entry->object != object) + entry = entry->next; - entry = entry->next; - entry->object = 0; - entry->next = 0; - assert(entry->conditionCount == 0); - } - } - } - else - { + if (entry->object != object) { + entry->next = firstFreeOverflowEntry; + firstFreeOverflowEntry = firstFreeOverflowEntry->next; + + entry = entry->next; + entry->object = 0; + entry->next = 0; + assert(entry->conditionCount == 0); + } + } + + } else { entry->mutex.holder = 0; entry->mutex.count = 0; entry->mutex.muxWaiters = 0; - } + } - if (entry->object == 0) - entry->object = object; - - internal_lock_mutex(&entry->mutex); -} + if (entry->object == 0) + entry->object = object; + + internal_lock_mutex(&entry->mutex); #endif +} /* * Unlocks the mutex of an object. */ -#ifdef USE_THREADS -void -internal_unlock_mutex_for_object (java_objectheader *object) +void internal_unlock_mutex_for_object (java_objectheader *object) { - int hashValue; - mutexHashEntry *entry; +#if defined(USE_THREADS) && !defined(NATIVE_THREADS) + int hashValue; + mutexHashEntry *entry; - hashValue = MUTEX_HASH_VALUE(object); - entry = &mutexHashTable[hashValue]; + hashValue = MUTEX_HASH_VALUE(object); + entry = &mutexHashTable[hashValue]; - if (entry->object == object) + if (entry->object == object) { internal_unlock_mutex(&entry->mutex); - else - { + + } else { while (entry->next != 0 && entry->next->object != object) entry = entry->next; @@ -990,195 +1116,207 @@ internal_unlock_mutex_for_object (java_objectheader *object) internal_unlock_mutex(&entry->next->mutex); - if (entry->next->mutex.count == 0 && entry->conditionCount == 0) - { + if (entry->next->mutex.count == 0 && entry->conditionCount == 0) { mutexHashEntry *unlinked = entry->next; entry->next = unlinked->next; unlinked->next = firstFreeOverflowEntry; firstFreeOverflowEntry = unlinked; } - } -} + } #endif +} -void -builtin_monitorenter (java_objectheader *o) -{ -#ifdef USE_THREADS - int hashValue; - assert(blockInts == 0); +void builtin_monitorenter(java_objectheader *o) +{ +#if defined(USE_THREADS) +#if !defined(NATIVE_THREADS) + int hashValue; - ++blockInts; + ++blockInts; - hashValue = MUTEX_HASH_VALUE(o); - if (mutexHashTable[hashValue].object == o + hashValue = MUTEX_HASH_VALUE(o); + if (mutexHashTable[hashValue].object == o && mutexHashTable[hashValue].mutex.holder == currentThread) ++mutexHashTable[hashValue].mutex.count; - else + else internal_lock_mutex_for_object(o); --blockInts; - - assert(blockInts == 0); +#else + monitorEnter((threadobject *) THREADOBJECT, o); +#endif #endif } -void builtin_monitorexit (java_objectheader *o) +/* + * Locks the class object - needed for static synchronized methods. + * The use_class_as_object call is needed in order to circumvent a + * possible deadlock with builtin_monitorenter called by another + * thread calling use_class_as_object. + */ +void builtin_staticmonitorenter(classinfo *c) { -#ifdef USE_THREADS - int hashValue; + use_class_as_object(c); + builtin_monitorenter(&c->header); +} - assert(blockInts == 0); - ++blockInts; +void *builtin_monitorexit(java_objectheader *o) +{ +#if defined(USE_THREADS) +#if !defined(NATIVE_THREADS) + int hashValue; - hashValue = MUTEX_HASH_VALUE(o); - if (mutexHashTable[hashValue].object == o) - { + ++blockInts; + + hashValue = MUTEX_HASH_VALUE(o); + if (mutexHashTable[hashValue].object == o) { if (mutexHashTable[hashValue].mutex.count == 1 && mutexHashTable[hashValue].mutex.muxWaiters != 0) internal_unlock_mutex_for_object(o); else --mutexHashTable[hashValue].mutex.count; - } - else + + } else internal_unlock_mutex_for_object(o); --blockInts; - - assert(blockInts == 0); + return o; +#else + monitorExit((threadobject *) THREADOBJECT, o); + return o; +#endif #endif } /***************************************************************************** - DIVERSE HILFSFUNKTIONEN + MISCELLANEOUS HELPER FUNCTIONS *****************************************************************************/ -/*********** Funktionen f"ur die Integerdivision ***************************** +/*********** Functions for integer divisions ***************************** - Auf manchen Systemen (z.B. DEC ALPHA) wird durch die CPU keine Integer- - division unterst"utzt. - Daf"ur gibt es dann diese Hilfsfunktionen + On some systems (eg. DEC ALPHA), integer division is not supported by the + CPU. These helper functions implement the missing functionality. ******************************************************************************/ -s4 builtin_idiv (s4 a, s4 b) { return a/b; } -s4 builtin_irem (s4 a, s4 b) { return a%b; } +s4 builtin_idiv(s4 a, s4 b) { return a / b; } +s4 builtin_irem(s4 a, s4 b) { return a % b; } -/************** Funktionen f"ur Long-Arithmetik ******************************* +/************** Functions for long arithmetics ******************************* - Auf Systemen, auf denen die CPU keine 64-Bit-Integers unterst"utzt, - werden diese Funktionen gebraucht + On systems where 64 bit Integers are not supported by the CPU, these + functions are needed. ******************************************************************************/ -s8 builtin_ladd (s8 a, s8 b) +s8 builtin_ladd(s8 a, s8 b) { #if U8_AVAILABLE - return a+b; + return a + b; #else return builtin_i2l(0); #endif } -s8 builtin_lsub (s8 a, s8 b) +s8 builtin_lsub(s8 a, s8 b) { #if U8_AVAILABLE - return a-b; + return a - b; #else return builtin_i2l(0); #endif } -s8 builtin_lmul (s8 a, s8 b) +s8 builtin_lmul(s8 a, s8 b) { #if U8_AVAILABLE - return a*b; + return a * b; #else return builtin_i2l(0); #endif } -s8 builtin_ldiv (s8 a, s8 b) +s8 builtin_ldiv(s8 a, s8 b) { #if U8_AVAILABLE - return a/b; + return a / b; #else return builtin_i2l(0); #endif } -s8 builtin_lrem (s8 a, s8 b) +s8 builtin_lrem(s8 a, s8 b) { #if U8_AVAILABLE - return a%b; + return a % b; #else return builtin_i2l(0); #endif } -s8 builtin_lshl (s8 a, s4 b) +s8 builtin_lshl(s8 a, s4 b) { #if U8_AVAILABLE - return a<<(b&63); + return a << (b & 63); #else return builtin_i2l(0); #endif } -s8 builtin_lshr (s8 a, s4 b) +s8 builtin_lshr(s8 a, s4 b) { #if U8_AVAILABLE - return a>>(b&63); + return a >> (b & 63); #else return builtin_i2l(0); #endif } -s8 builtin_lushr (s8 a, s4 b) +s8 builtin_lushr(s8 a, s4 b) { #if U8_AVAILABLE - return ((u8)a)>>(b&63); + return ((u8) a) >> (b & 63); #else return builtin_i2l(0); #endif } -s8 builtin_land (s8 a, s8 b) +s8 builtin_land(s8 a, s8 b) { #if U8_AVAILABLE - return a&b; + return a & b; #else return builtin_i2l(0); #endif } -s8 builtin_lor (s8 a, s8 b) +s8 builtin_lor(s8 a, s8 b) { #if U8_AVAILABLE - return a|b; + return a | b; #else return builtin_i2l(0); #endif } -s8 builtin_lxor (s8 a, s8 b) +s8 builtin_lxor(s8 a, s8 b) { #if U8_AVAILABLE - return a^b; + return a ^ b; #else return builtin_i2l(0); #endif } -s8 builtin_lneg (s8 a) +s8 builtin_lneg(s8 a) { #if U8_AVAILABLE return -a; @@ -1187,11 +1325,11 @@ s8 builtin_lneg (s8 a) #endif } -s4 builtin_lcmp (s8 a, s8 b) +s4 builtin_lcmp(s8 a, s8 b) { #if U8_AVAILABLE - if (ab) return 1; + if (a < b) return -1; + if (a > b) return 1; return 0; #else return 0; @@ -1202,281 +1340,284 @@ s4 builtin_lcmp (s8 a, s8 b) -/*********** Funktionen f"ur die Floating-Point-Operationen ******************/ +/*********** Functions for floating point operations *************************/ -float builtin_fadd (float a, float b) +float builtin_fadd(float a, float b) { - if (isnanf(a)) return FLT_NAN; - if (isnanf(b)) return FLT_NAN; + if (isnanf(a)) return intBitsToFloat(FLT_NAN); + if (isnanf(b)) return intBitsToFloat(FLT_NAN); if (finitef(a)) { - if (finitef(b)) return a+b; - else return b; - } + if (finitef(b)) + return a + b; + else + return b; + } else { - if (finitef(b)) return a; + if (finitef(b)) + return a; else { - if (copysignf(1.0, a)==copysignf(1.0, b)) return a; - else return FLT_NAN; - } + if (copysignf(1.0, a) == copysignf(1.0, b)) + return a; + else + return intBitsToFloat(FLT_NAN); } + } } -float builtin_fsub (float a, float b) + +float builtin_fsub(float a, float b) { - return builtin_fadd (a, builtin_fneg(b)); + return builtin_fadd(a, builtin_fneg(b)); } -float builtin_fmul (float a, float b) + +float builtin_fmul(float a, float b) { - if (isnanf(a)) return FLT_NAN; - if (isnanf(b)) return FLT_NAN; + if (isnanf(a)) return intBitsToFloat(FLT_NAN); + if (isnanf(b)) return intBitsToFloat(FLT_NAN); if (finitef(a)) { - if (finitef(b)) return a*b; + if (finitef(b)) return a * b; else { - if (a==0) return FLT_NAN; - else return copysignf(b, copysignf(1.0, b)*a); - } + if (a == 0) return intBitsToFloat(FLT_NAN); + else return copysignf(b, copysignf(1.0, b)*a); } + } else { if (finitef(b)) { - if (b==0) return FLT_NAN; - else return copysignf(a, copysignf(1.0, a)*b); - } + if (b == 0) return intBitsToFloat(FLT_NAN); + else return copysignf(a, copysignf(1.0, a)*b); + } else { return copysignf(a, copysignf(1.0, a)*copysignf(1.0, b)); - } } + } } -float builtin_fdiv (float a, float b) + +float builtin_fdiv(float a, float b) { if (finitef(a) && finitef(b)) { if (b != 0) return a / b; else { if (a > 0) - return FLT_POSINF; + return intBitsToFloat(FLT_POSINF); else if (a < 0) - return FLT_NEGINF; - } + return intBitsToFloat(FLT_NEGINF); } - return FLT_NAN; + } + return intBitsToFloat(FLT_NAN); } -float builtin_frem (float a, float b) -{ - -/* return (float) builtin_drem((double) a, (double) b); */ - - float f; - - if (finite((double) a) && finite((double) b)) { - f = a / b; - if (finite((double) f)) - return fmodf(a, b); - return FLT_NAN; - } - if (isnan((double) b)) - return FLT_NAN; - if (finite((double) a)) - return a; - return FLT_NAN; -/* float f; - - if (finitef(a) && finitef(b)) { - f = a / b; - if (finitef(f)) - return a - floorf(f) * b; - return FLT_NAN; - } - if (isnanf(b)) - return FLT_NAN; - if (finitef(a)) - return a; - return FLT_NAN; */ +float builtin_frem(float a, float b) +{ + return fmodf(a, b); } -float builtin_fneg (float a) +float builtin_fneg(float a) { if (isnanf(a)) return a; else { if (finitef(a)) return -a; - else return copysignf(a,-copysignf(1.0, a)); - } + else return copysignf(a, -copysignf(1.0, a)); + } } -s4 builtin_fcmpl (float a, float b) + +s4 builtin_fcmpl(float a, float b) { if (isnanf(a)) return -1; if (isnanf(b)) return -1; if (!finitef(a) || !finitef(b)) { - a = finitef(a) ? 0 : copysignf(1.0, a); + a = finitef(a) ? 0 : copysignf(1.0, a); b = finitef(b) ? 0 : copysignf(1.0, b); - } - if (a>b) return 1; - if (a==b) return 0; + } + if (a > b) return 1; + if (a == b) return 0; return -1; } -s4 builtin_fcmpg (float a, float b) + +s4 builtin_fcmpg(float a, float b) { if (isnanf(a)) return 1; if (isnanf(b)) return 1; if (!finitef(a) || !finitef(b)) { a = finitef(a) ? 0 : copysignf(1.0, a); b = finitef(b) ? 0 : copysignf(1.0, b); - } - if (a>b) return 1; - if (a==b) return 0; + } + if (a > b) return 1; + if (a == b) return 0; return -1; } -/*********** Funktionen f"ur doppelt genaue Fliesskommazahlen ***************/ +/************************* Functions for doubles ****************************/ -double builtin_dadd (double a, double b) +double builtin_dadd(double a, double b) { - if (isnan(a)) return DBL_NAN; - if (isnan(b)) return DBL_NAN; + if (isnan(a)) return longBitsToDouble(DBL_NAN); + if (isnan(b)) return longBitsToDouble(DBL_NAN); if (finite(a)) { - if (finite(b)) return a+b; + if (finite(b)) return a + b; else return b; - } + } else { if (finite(b)) return a; else { if (copysign(1.0, a)==copysign(1.0, b)) return a; - else return DBL_NAN; - } + else return longBitsToDouble(DBL_NAN); } + } } -double builtin_dsub (double a, double b) + +double builtin_dsub(double a, double b) { - return builtin_dadd (a, builtin_dneg(b)); + return builtin_dadd(a, builtin_dneg(b)); } -double builtin_dmul (double a, double b) + +double builtin_dmul(double a, double b) { - if (isnan(a)) return DBL_NAN; - if (isnan(b)) return DBL_NAN; + if (isnan(a)) return longBitsToDouble(DBL_NAN); + if (isnan(b)) return longBitsToDouble(DBL_NAN); if (finite(a)) { - if (finite(b)) return a*b; + if (finite(b)) return a * b; else { - if (a==0) return DBL_NAN; - else return copysign(b, copysign(1.0, b)*a); - } + if (a == 0) return longBitsToDouble(DBL_NAN); + else return copysign(b, copysign(1.0, b) * a); } + } else { if (finite(b)) { - if (b==0) return DBL_NAN; - else return copysign(a, copysign(1.0, a)*b); - } + if (b == 0) return longBitsToDouble(DBL_NAN); + else return copysign(a, copysign(1.0, a) * b); + } else { - return copysign(a, copysign(1.0, a)*copysign(1.0, b)); - } + return copysign(a, copysign(1.0, a) * copysign(1.0, b)); } + } } -double builtin_ddiv (double a, double b) + +double builtin_ddiv(double a, double b) { - if (finite(a) && finite(b)) { - if (b != 0) + if (finite(a)) { + if (finite(b)) { return a / b; - else { + + } else { + if (isnan(b)) + return longBitsToDouble(DBL_NAN); + else + return copysign(0.0, b); + } + + } else { + if (finite(b)) { if (a > 0) - return DBL_POSINF; + return longBitsToDouble(DBL_POSINF); else if (a < 0) - return DBL_NEGINF; - } - } - return DBL_NAN; + return longBitsToDouble(DBL_NEGINF); + + } else + return longBitsToDouble(DBL_NAN); + } + +/* if (finite(a) && finite(b)) { */ +/* if (b != 0) */ +/* return a / b; */ +/* else { */ +/* if (a > 0) */ +/* return longBitsToDouble(DBL_POSINF); */ +/* else if (a < 0) */ +/* return longBitsToDouble(DBL_NEGINF); */ +/* } */ +/* } */ + + /* keep compiler happy */ + return 0; } -double builtin_drem (double a, double b) -{ - double d; - if (finite(a) && finite(b)) { - d = a / b; - if (finite(d)) { - if ((d < 1.0) && (d > 0.0)) - return a; - return fmod(a, b); - } - return DBL_NAN; - } - if (isnan(b)) - return DBL_NAN; - if (finite(a)) - return a; - return DBL_NAN; +double builtin_drem(double a, double b) +{ + return fmod(a, b); } -double builtin_dneg (double a) + +double builtin_dneg(double a) { if (isnan(a)) return a; else { if (finite(a)) return -a; - else return copysign(a,-copysign(1.0, a)); - } + else return copysign(a, -copysign(1.0, a)); + } } -s4 builtin_dcmpl (double a, double b) + +s4 builtin_dcmpl(double a, double b) { if (isnan(a)) return -1; if (isnan(b)) return -1; if (!finite(a) || !finite(b)) { a = finite(a) ? 0 : copysign(1.0, a); b = finite(b) ? 0 : copysign(1.0, b); - } - if (a>b) return 1; - if (a==b) return 0; + } + if (a > b) return 1; + if (a == b) return 0; return -1; } -s4 builtin_dcmpg (double a, double b) + +s4 builtin_dcmpg(double a, double b) { if (isnan(a)) return 1; if (isnan(b)) return 1; if (!finite(a) || !finite(b)) { a = finite(a) ? 0 : copysign(1.0, a); b = finite(b) ? 0 : copysign(1.0, b); - } - if (a>b) return 1; - if (a==b) return 0; + } + if (a > b) return 1; + if (a == b) return 0; return -1; } -/*********************** Umwandlungsoperationen ****************************/ +/*********************** Conversion operations ****************************/ -s8 builtin_i2l (s4 i) +s8 builtin_i2l(s4 i) { #if U8_AVAILABLE return i; #else - s8 v; v.high = 0; v.low=i; return v; + s8 v; + v.high = 0; + v.low = i; + return v; #endif } -float builtin_i2f (s4 a) + +float builtin_i2f(s4 a) { -float f = (float) a; -return f; + float f = (float) a; + return f; } -double builtin_i2d (s4 a) + +double builtin_i2d(s4 a) { -double d = (double) a; -return d; + double d = (double) a; + return d; } -s4 builtin_l2i (s8 l) +s4 builtin_l2i(s8 l) { #if U8_AVAILABLE return (s4) l; @@ -1485,7 +1626,8 @@ s4 builtin_l2i (s8 l) #endif } -float builtin_l2f (s8 a) + +float builtin_l2f(s8 a) { #if U8_AVAILABLE float f = (float) a; @@ -1495,7 +1637,8 @@ float builtin_l2f (s8 a) #endif } -double builtin_l2d (s8 a) + +double builtin_l2d(s8 a) { #if U8_AVAILABLE double d = (double) a; @@ -1509,109 +1652,200 @@ double builtin_l2d (s8 a) s4 builtin_f2i(float a) { -return builtin_d2i((double) a); + return builtin_d2i((double) a); -/* float f; + /* float f; - if (isnanf(a)) + if (isnanf(a)) return 0; - if (finitef(a)) { + if (finitef(a)) { if (a > 2147483647) - return 2147483647; + return 2147483647; if (a < (-2147483648)) - return (-2147483648); + return (-2147483648); return (s4) a; } - f = copysignf((float) 1.0, a); - if (f > 0) + f = copysignf((float) 1.0, a); + if (f > 0) return 2147483647; - return (-2147483648); */ + return (-2147483648); */ } -s8 builtin_f2l (float a) +s8 builtin_f2l(float a) { -return builtin_d2l((double) a); + return builtin_d2l((double) a); -/* float f; + /* float f; - if (finitef(a)) { + if (finitef(a)) { if (a > 9223372036854775807L) - return 9223372036854775807L; + return 9223372036854775807L; if (a < (-9223372036854775808L)) - return (-9223372036854775808L); + return (-9223372036854775808L); return (s8) a; } - if (isnanf(a)) + if (isnanf(a)) return 0; - f = copysignf((float) 1.0, a); - if (f > 0) + f = copysignf((float) 1.0, a); + if (f > 0) return 9223372036854775807L; - return (-9223372036854775808L); */ + return (-9223372036854775808L); */ } -double builtin_f2d (float a) +double builtin_f2d(float a) { if (finitef(a)) return (double) a; else { - if (isnanf(a)) return DBL_NAN; - else return copysign(DBL_POSINF, (double) copysignf(1.0, a) ); - } + if (isnanf(a)) + return longBitsToDouble(DBL_NAN); + else + return copysign(longBitsToDouble(DBL_POSINF), (double) copysignf(1.0, a) ); + } } -s4 builtin_d2i (double a) +s4 builtin_d2i(double a) { double d; if (finite(a)) { if (a >= 2147483647) return 2147483647; - if (a <= (-2147483648)) - return (-2147483648); + if (a <= (-2147483647-1)) + return (-2147483647-1); return (s4) a; - } + } if (isnan(a)) return 0; d = copysign(1.0, a); if (d > 0) return 2147483647; - return (-2147483648); + return (-2147483647-1); } -s8 builtin_d2l (double a) +s8 builtin_d2l(double a) { double d; if (finite(a)) { - if (a >= 9223372036854775807L) - return 9223372036854775807L; - if (a <= (-9223372036854775807L-1)) - return (-9223372036854775807L-1); + if (a >= 9223372036854775807LL) + return 9223372036854775807LL; + if (a <= (-9223372036854775807LL-1)) + return (-9223372036854775807LL-1); return (s8) a; - } + } if (isnan(a)) return 0; d = copysign(1.0, a); if (d > 0) - return 9223372036854775807L; - return (-9223372036854775807L-1); + return 9223372036854775807LL; + return (-9223372036854775807LL-1); } -float builtin_d2f (double a) +float builtin_d2f(double a) { - if (finite(a)) return (float) a; + if (finite(a)) + return (float) a; else { - if (isnan(a)) return FLT_NAN; - else return copysignf (FLT_POSINF, (float) copysign(1.0, a)); - } + if (isnan(a)) + return intBitsToFloat(FLT_NAN); + else + return copysignf(intBitsToFloat(FLT_POSINF), (float) copysign(1.0, a)); + } } +/* used to convert FLT_xxx defines into float values */ + +inline float intBitsToFloat(s4 i) +{ + imm_union imb; + + imb.i = i; + return imb.f; +} + + +/* used to convert DBL_xxx defines into double values */ + +inline float longBitsToDouble(s8 l) +{ + imm_union imb; + + imb.l = l; + return imb.d; +} + + +java_arrayheader *builtin_clone_array(void *env, java_arrayheader *o) +{ + return (java_arrayheader *) Java_java_lang_VMObject_clone(0, 0, (java_lang_Cloneable *) o); +} + + +s4 builtin_dummy() +{ + panic("Internal error: builtin_dummy called (native function is missing)"); + return 0; /* for the compiler */ +} + + +/* builtin_asm_get_exceptionptrptr ********************************************* + + this is a wrapper for calls from asmpart + +*******************************************************************************/ + +#if defined(USE_THREADS) && defined(NATIVE_THREADS) +java_objectheader **builtin_asm_get_exceptionptrptr() +{ + return builtin_get_exceptionptrptr(); +} +#endif + + +methodinfo *builtin_asm_get_threadrootmethod() +{ + return *threadrootmethod; +} + + +inline void* builtin_asm_get_stackframeinfo() +{ +/*log_text("builtin_asm_get_stackframeinfo()");*/ +#if defined(USE_THREADS) && defined(NATIVE_THREADS) + return &THREADINFO->_stackframeinfo; +#else +#if defined(__GNUC__) +#warning FIXME FOR OLD THREAD IMPL (jowenn) +#endif + return &_thread_nativestackframeinfo; /* no threading, at least no native*/ +#endif +} + +stacktraceelement *builtin_stacktrace_copy(stacktraceelement **el,stacktraceelement *begin, stacktraceelement *end) { +/* stacktraceelement *el;*/ + size_t s; + s=(end-begin); + /*printf ("begin: %p, end: %p, diff: %ld, size :%ld\n",begin,end,s,s*sizeof(stacktraceelement));*/ + *el=heap_allocate(sizeof(stacktraceelement)*(s+1), true, 0); +#if 0 + *el=MNEW(stacktraceelement,s+1); /*GC*/ +#endif + memcpy(*el,begin,(end-begin)*sizeof(stacktraceelement)); + (*el)[s].method=0; +#if defined(__GNUC__) +#warning change this if line numbers bigger than u2 are allowed, the currently supported class file format does no allow that +#endif + (*el)[s].linenumber=-1; /* -1 can never be reched otherwise, since line numbers are only u2, so it is save to use that as flag */ + return *el; +} + /* * These are local overrides for various environment variables in Emacs. * Please do not remove this and leave it at the end of the file, where