-/****************************** native.c ***************************************
+/* native.c - table of native functions
- 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.
- Enth"alt die Tabellen f"ur die native-methods.
- Die vom Headerfile-Generator erzeugten -.hh - Dateien werden hier
- eingebunden, und ebenso alle C-Funktionen, mit denen diese
- Methoden implementiert werden.
+ 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
+ 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: 1996/11/14
+ 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
+
+ Authors: Reinhard Grafl
+ Roman Obermaisser
+ Andreas Krall
+
+ The .hh files created with the header file generator are all
+ included here as are the C functions implementing these methods.
+
+ $Id: native.c 1322 2004-07-17 12:29:18Z motse $
+*/
+
+
+#include <stdlib.h>
#include <unistd.h>
#include <time.h>
+#include <math.h>
+#include <string.h>
+#include <assert.h>
+#include <sys/time.h>
+#include <utime.h>
-
+#include "config.h"
#include "global.h"
+#include "options.h"
+#include "jni.h"
#include "native.h"
-
#include "builtin.h"
-#include "nativetypes.hh"
#include "asmpart.h"
#include "tables.h"
#include "loader.h"
+#include "jni.h"
+#include "jit/jit.h"
+#include "toolbox/logging.h"
+#include "toolbox/memory.h"
+#include "threads/thread.h"
+#include "threads/threadio.h"
+#include "threads/locks.h"
+#include "nat/java_lang_VMClass.h"
+#include "nat/java_lang_Throwable.h"
+
+/* Include files for IO functions */
+
+#include <fcntl.h>
+#include <dirent.h>
+#include <sys/types.h>
+#ifdef _OSF_SOURCE
+#include <sys/mode.h>
+#endif
+#include <sys/stat.h>
+
+#include "threads/threadio.h"
+
+/* include table of native functions */
+
+#include "nativetable.inc"
+
+
+/* searchpath for classfiles */
+char *classpath;
+
+/* for java-string to char conversion */
+#define MAXSTRINGSIZE 1000
+
+
+/******************** systemclasses required for native methods ***************/
+
+classinfo *class_java_lang_Class;
+classinfo *class_java_lang_VMClass;
+classinfo *class_java_lang_System;
+classinfo *class_java_lang_ClassLoader;
+classinfo *class_gnu_java_lang_SystemClassLoader;
+classinfo *class_java_lang_SecurityManager;
+classinfo *class_java_lang_Double;
+classinfo *class_java_lang_Float;
+classinfo *class_java_lang_Long;
+classinfo *class_java_lang_Byte;
+classinfo *class_java_lang_Short;
+classinfo *class_java_lang_Boolean;
+classinfo *class_java_lang_Void;
+classinfo *class_java_lang_Character;
+classinfo *class_java_lang_Integer;
+
+methodinfo *method_vmclass_init;
+
+
+/* system exception classes required in cacao */
+
+classinfo *class_java_lang_Throwable;
+classinfo *class_java_lang_Exception;
+classinfo *class_java_lang_Error;
+
+
+/* exception/error super class */
+
+char *string_java_lang_Throwable =
+ "java/lang/Throwable";
+
+char *string_java_lang_VMThrowable =
+ "java/lang/VMThrowable";
+
+
+/* specify some exception strings for code generation */
+char *string_java_lang_ArithmeticException =
+ "java/lang/ArithmeticException";
-java_objectheader* exceptionptr = NULL;
+char *string_java_lang_ArithmeticException_message =
+ "/ by zero";
+char *string_java_lang_ArrayIndexOutOfBoundsException =
+ "java/lang/ArrayIndexOutOfBoundsException";
+char *string_java_lang_ArrayStoreException =
+ "java/lang/ArrayStoreException";
-static char *classpath;
+char *string_java_lang_ClassCastException =
+ "java/lang/ClassCastException";
+char *string_java_lang_ClassNotFoundException =
+ "java/lang/ClassNotFoundException";
-/******************** die f"r die native-Methoden n"otigen Systemklassen *****/
+char *string_java_lang_CloneNotSupportedException =
+ "java/lang/CloneNotSupportedException";
-static classinfo *class_java_lang_Class;
-static classinfo *class_java_lang_Cloneable;
-static classinfo *class_java_lang_CloneNotSupportedException;
-static classinfo *class_java_lang_Double;
-static classinfo *class_java_lang_Float;
-static classinfo *class_java_io_IOException;
-static classinfo *class_java_lang_ClassNotFoundException;
-static classinfo *class_java_lang_InstantiationException;
+char *string_java_lang_Exception =
+ "java/lang/Exception";
+char *string_java_lang_IllegalArgumentException =
+ "java/lang/IllegalArgumentException";
+char *string_java_lang_IllegalMonitorStateException =
+ "java/lang/IllegalMonitorStateException";
-/************************** alle Funktionen einbinden ************************/
+char *string_java_lang_NegativeArraySizeException =
+ "java/lang/NegativeArraySizeException";
-#include "nat/lang.c"
-#include "nat/io.c"
-#include "nat/util.c"
+char *string_java_lang_NoSuchFieldException =
+ "java/lang/NoSuchFieldException";
+char *string_java_lang_NoSuchMethodException =
+ "java/lang/NoSuchMethodException";
-/********************** Tabellen f"ur die Methoden ***************************/
+char *string_java_lang_NullPointerException =
+ "java/lang/NullPointerException";
-static struct nativeref {
- char *classname;
- char *methodname;
- char *descriptor;
- bool isstatic;
- functionptr func;
-} nativetable [] = {
-#include "nativetable.hh"
+/* specify some error strings for code generation */
-};
+char *string_java_lang_AbstractMethodError =
+ "java/lang/AbstractMethodError";
+char *string_java_lang_ClassCircularityError =
+ "java/lang/ClassCircularityError";
+
+char *string_java_lang_ClassFormatError =
+ "java/lang/ClassFormatError";
+
+char *string_java_lang_Error =
+ "java/lang/Error";
+
+char *string_java_lang_ExceptionInInitializerError =
+ "java/lang/ExceptionInInitializerError";
+
+char *string_java_lang_IncompatibleClassChangeError =
+ "java/lang/IncompatibleClassChangeError";
+
+char *string_java_lang_InternalError =
+ "java/lang/InternalError";
+
+char *string_java_lang_LinkageError =
+ "java/lang/LinkageError";
+
+char *string_java_lang_NoClassDefFoundError =
+ "java/lang/NoClassDefFoundError";
+
+char *string_java_lang_NoSuchFieldError =
+ "java/lang/NoSuchFieldError";
+
+char *string_java_lang_NoSuchMethodError =
+ "java/lang/NoSuchMethodError";
+
+char *string_java_lang_OutOfMemoryError =
+ "java/lang/OutOfMemoryError";
+
+char *string_java_lang_VerifyError =
+ "java/lang/VerifyError";
+
+char *string_java_lang_VirtualMachineError =
+ "java/lang/VirtualMachineError";
+
+
+/* the system classloader object */
+struct java_lang_ClassLoader *SystemClassLoader = NULL;
+
+/* for raising exceptions from native methods */
+#if !defined(USE_THREADS) || !defined(NATIVE_THREADS)
+java_objectheader* _exceptionptr = NULL;
+#endif
+
+/************* use classinfo structure as java.lang.Class object **************/
+
+void use_class_as_object(classinfo *c)
+{
+ if (!c->classvftbl) {
+ c->header.vftbl = class_java_lang_Class->vftbl;
+ c->classvftbl = true;
+ }
+
+}
+
+
+/*************************** include native methods ***************************/
+
+#ifdef USE_GTK
+#include "nat/GdkGraphics.c"
+#include "nat/GtkComponentPeer.c"
+#include "nat/GdkPixbufDecoder.c"
+#include "nat/GtkScrollPanePeer.c"
+#include "nat/GtkFileDialogPeer.c"
+#endif
+
+
+/************************** tables for methods ********************************/
+
+#undef JOWENN_DEBUG
+#undef JOWENN_DEBUG1
#define NATIVETABLESIZE (sizeof(nativetable)/sizeof(struct nativeref))
-static struct nativecompref {
- unicode *classname;
- unicode *methodname;
- unicode *descriptor;
- bool isstatic;
- functionptr func;
- } nativecomptable [NATIVETABLESIZE];
+/* table for fast string comparison */
+static nativecompref nativecomptable[NATIVETABLESIZE];
+/* string comparsion table initialized */
static bool nativecompdone = false;
-/*********************** Funktion: native_loadclasses **************************
+/******************************************************************************/
+/******************************************************************************/
+#include "natcalls.h"
+
+/* string call comparison table initialized */
- L"adt alle Klassen, die die native Methoden zus"atzlich ben"otigen
+/******************************************************************************/
+/******************************************************************************/
+
+/* init_system_exceptions *****************************************************
+
+ load, link and compile exceptions used in the system
+
+*******************************************************************************/
+
+void init_system_exceptions()
+{
+ /* java/lang/Throwable */
+
+ class_java_lang_Throwable =
+ class_new(utf_new_char(string_java_lang_Throwable));
+ class_load(class_java_lang_Throwable);
+ class_link(class_java_lang_Throwable);
+
+ /* java/lang/Exception */
+
+ class_java_lang_Exception =
+ class_new(utf_new_char(string_java_lang_Exception));
+ class_load(class_java_lang_Exception);
+ class_link(class_java_lang_Exception);
+
+ /* java/lang/Error */
+
+ class_java_lang_Error =
+ class_new(utf_new_char(string_java_lang_Error));
+ class_load(class_java_lang_Error);
+ class_link(class_java_lang_Error);
+}
+
+
+void compile_all_class_methods(classinfo *c)
+{
+ s4 i;
+
+ for (i = 0; i < c->methodscount; i++) {
+ (void) jit_compile(&(c->methods[i]));
+ }
+}
+
+
+static void throw_exception_exit_intern(bool doexit)
+{
+ java_objectheader *xptr;
+ classinfo *c;
+ methodinfo *pss;
+
+ if (*exceptionptr) {
+ xptr = *exceptionptr;
+
+ /* clear exception, because we are calling jit code again */
+ *exceptionptr = NULL;
+
+ c = xptr->vftbl->class;
+
+ pss = class_resolveclassmethod(c,
+ utf_new_char("printStackTrace"),
+ utf_new_char("()V"),
+ class_java_lang_Object,
+ false);
+
+ /* print the stacktrace */
+ if (pss) {
+ asm_calljavafunction(pss, xptr, NULL, NULL, NULL);
+
+ /* this normally means, we are EXTREMLY out of memory, but may be
+ any other exception */
+ if (*exceptionptr) {
+ utf_fprint_classname(stderr, c->name);
+ fprintf(stderr, "\n");
+ }
+
+ } else {
+ utf_fprint_classname(stderr, c->name);
+ fprintf(stderr, ": printStackTrace()V not found!\n");
+ }
+
+ fflush(stderr);
+
+ /* good bye! */
+ if (doexit) {
+ exit(1);
+ }
+ }
+}
+
+
+void throw_exception()
+{
+ throw_exception_exit_intern(false);
+}
+
+
+void throw_exception_exit()
+{
+ throw_exception_exit_intern(true);
+}
+
+
+void throw_main_exception()
+{
+ fprintf(stderr, "Exception in thread \"main\" ");
+ fflush(stderr);
+
+ throw_exception_exit_intern(false);
+}
+
+
+void throw_main_exception_exit()
+{
+ fprintf(stderr, "Exception in thread \"main\" ");
+ fflush(stderr);
+
+ throw_exception_exit_intern(true);
+}
+
+
+void throw_cacao_exception_exit(char *exception, char *message)
+{
+ s4 i;
+ char *tmp;
+ s4 len;
+
+ len = strlen(exception);
+ tmp = MNEW(char, len);
+ strncpy(tmp, exception, len);
+
+ /* convert to classname */
+
+ for (i = len - 1; i >= 0; i--) {
+ if (tmp[i] == '/') tmp[i] = '.';
+ }
+
+ fprintf(stderr, "Exception in thread \"main\" %s", tmp);
+
+ MFREE(tmp, char, len);
+
+ if (strlen(message) > 0)
+ fprintf(stderr, ": %s", message);
+
+ fprintf(stderr, "\n");
+ fflush(stderr);
+
+ /* good bye! */
+ exit(1);
+}
+
+
+#define CREATENEW_EXCEPTION(ex) \
+ java_objectheader *newEx; \
+ java_objectheader *oldexception=*exceptionptr;\
+ *exceptionptr=0;\
+ newEx=ex;\
+ *exceptionptr=oldexception;\
+ return newEx;
+
+java_objectheader *new_exception(char *classname)
+{
+ classinfo *c = class_new(utf_new_char(classname));
+
+ CREATENEW_EXCEPTION(native_new_and_init(c));
+}
+
+java_objectheader *new_exception_message(char *classname, char *message)
+{
+ classinfo *c = class_new(utf_new_char(classname));
+
+ CREATENEW_EXCEPTION(native_new_and_init_string(c, javastring_new_char(message)));
+}
+
+
+java_objectheader *new_exception_throwable(char *classname, java_lang_Throwable *throwable)
+{
+ classinfo *c = class_new(utf_new_char(classname));
+
+ CREATENEW_EXCEPTION(native_new_and_init_throwable(c, throwable));
+}
+
+
+java_objectheader *new_exception_utfmessage(char *classname, utf *message)
+{
+ classinfo *c = class_new(utf_new_char(classname));
+
+ CREATENEW_EXCEPTION(native_new_and_init_string(c, javastring_new(message)));
+}
+
+
+java_objectheader *new_exception_javastring(char *classname, java_lang_String *message)
+{
+ classinfo *c = class_new(utf_new_char(classname));
+
+ CREATENEW_EXCEPTION(native_new_and_init_string(c, message));
+}
+
+
+java_objectheader *new_exception_int(char *classname, s4 i)
+{
+ classinfo *c = class_new(utf_new_char(classname));
+
+ CREATENEW_EXCEPTION(native_new_and_init_int(c, i));
+}
+
+
+/*********************** function: native_loadclasses **************************
+
+ load classes required for native methods
*******************************************************************************/
void native_loadclasses()
{
- class_java_lang_Cloneable =
- loader_load ( unicode_new_char ("java/lang/Cloneable") );
- class_java_lang_CloneNotSupportedException =
- loader_load ( unicode_new_char ("java/lang/CloneNotSupportedException") );
+ static int classesLoaded = 0; /*temporary hack JoWenn*/
+
+ if (classesLoaded)
+ return;
+
+ classesLoaded = 1;
+
+ class_java_lang_Cloneable =
+ class_new(utf_new_char("java/lang/Cloneable"));
+ class_load(class_java_lang_Cloneable);
+ class_link(class_java_lang_Cloneable);
+
class_java_lang_Class =
- loader_load ( unicode_new_char ("java/lang/Class") );
- class_java_lang_Double =
- loader_load ( unicode_new_char ("java/lang/Double") );
- class_java_lang_Float =
- loader_load ( unicode_new_char ("java/lang/Float") );
- class_java_io_IOException =
- loader_load ( unicode_new_char ("java/io/IOException") );
- class_java_lang_ClassNotFoundException =
- loader_load ( unicode_new_char ("java/lang/ClassNotFoundException") );
- class_java_lang_InstantiationException=
- loader_load ( unicode_new_char ("java/lang/InstantiationException") );
-
+ class_new(utf_new_char("java/lang/Class"));
+ class_load(class_java_lang_Class);
+ class_link(class_java_lang_Class);
+
+ class_java_lang_VMClass =
+ class_new(utf_new_char("java/lang/VMClass"));
+ class_load(class_java_lang_VMClass);
+ class_link(class_java_lang_VMClass);
+
+ class_java_lang_ClassLoader =
+ class_new(utf_new_char("java/lang/ClassLoader"));
+ class_load(class_java_lang_ClassLoader);
+ class_link(class_java_lang_ClassLoader);
+
+ /* load classes for wrapping primitive types */
+ class_java_lang_Double = class_new(utf_new_char("java/lang/Double"));
+ class_load(class_java_lang_Double);
+ class_link(class_java_lang_Double);
+
+ class_java_lang_Float = class_new(utf_new_char("java/lang/Float"));
+ class_load(class_java_lang_Float);
+ class_link(class_java_lang_Float);
+
+ class_java_lang_Character = class_new(utf_new_char("java/lang/Character"));
+ class_load(class_java_lang_Character);
+ class_link(class_java_lang_Character);
+
+ class_java_lang_Integer = class_new(utf_new_char("java/lang/Integer"));
+ class_load(class_java_lang_Integer);
+ class_link(class_java_lang_Integer);
+
+ class_java_lang_Long = class_new(utf_new_char("java/lang/Long"));
+ class_load(class_java_lang_Long);
+ class_link(class_java_lang_Long);
+
+ class_java_lang_Byte = class_new(utf_new_char("java/lang/Byte"));
+ class_load(class_java_lang_Byte);
+ class_link(class_java_lang_Byte);
+
+ class_java_lang_Short = class_new(utf_new_char("java/lang/Short"));
+ class_load(class_java_lang_Short);
+ class_link(class_java_lang_Short);
+
+ class_java_lang_Boolean = class_new(utf_new_char("java/lang/Boolean"));
+ class_load(class_java_lang_Boolean);
+ class_link(class_java_lang_Boolean);
+
+ class_java_lang_Void = class_new(utf_new_char("java/lang/Void"));
+ class_load(class_java_lang_Void);
+ class_link(class_java_lang_Void);
+
}
-/********************* Funktion: native_setclasspath ***************************/
+
+/*****************************************************************************
+
+ create systemclassloader object and initialize instance fields
+
+******************************************************************************/
+
+void init_systemclassloader()
+{
+ log_text("init_systemclassloader");
+ if (!SystemClassLoader) {
+ native_loadclasses();
+ log_text("Initializing new system class loader");
+ /* create object and call initializer */
+ SystemClassLoader = (java_lang_ClassLoader *) native_new_and_init(class_new(utf_new_char("gnu/java/lang/SystemClassLoader")));
+
+ /* systemclassloader has no parent */
+ SystemClassLoader->parent = NULL;
+ SystemClassLoader->initialized = true;
+ }
+ log_text("leaving system class loader");
+}
+
+
+/********************* function: native_setclasspath **************************/
-void native_setclasspath (char *path)
+void native_setclasspath(char *path)
{
+ /* set searchpath for classfiles */
classpath = path;
}
-/*********************** Funktion: native_findfunction ************************
+/*********************** Function: native_findfunction *************************
- Sucht in der Tabelle die passende Methode (muss mit Klassennamen,
- Methodennamen, Descriptor und 'static'-Status "ubereinstimmen),
- und gibt den Funktionszeiger darauf zur"uck.
- Return: Funktionszeiger oder NULL (wenn es keine solche Methode gibt)
+ Looks up a method (must have the same class name, method name, descriptor
+ and 'static'ness) and returns a function pointer to it.
+ Returns: function pointer or NULL (if there is no such method)
- Anmerkung: Zu Beschleunigung des Suchens werden die als C-Strings
- vorliegenden Namen/Descriptors in entsprechende unicode-Symbole
- umgewandelt (beim ersten Aufruf dieser Funktion).
+ Remark: For faster operation, the names/descriptors are converted from C
+ strings to Unicode the first time this function is called.
*******************************************************************************/
-functionptr native_findfunction (unicode *cname, unicode *mname,
- unicode *desc, bool isstatic)
+functionptr native_findfunction(utf *cname, utf *mname,
+ utf *desc, bool isstatic)
{
- u4 i;
+ int i;
+ /* entry of table for fast string comparison */
struct nativecompref *n;
+ /* for warning message if no function is found */
+ char *buffer;
+ int buffer_len;
isstatic = isstatic ? true : false;
-
+
if (!nativecompdone) {
- for (i=0; i<NATIVETABLESIZE; i++) {
- nativecomptable[i].classname =
- unicode_new_char(nativetable[i].classname);
- nativecomptable[i].methodname =
- unicode_new_char(nativetable[i].methodname);
- nativecomptable[i].descriptor =
- unicode_new_char(nativetable[i].descriptor);
- nativecomptable[i].isstatic =
- nativetable[i].isstatic;
- nativecomptable[i].func =
- nativetable[i].func;
- }
- nativecompdone = true;
+ for (i = 0; i < NATIVETABLESIZE; i++) {
+ nativecomptable[i].classname =
+ utf_new_char(nativetable[i].classname);
+ nativecomptable[i].methodname =
+ utf_new_char(nativetable[i].methodname);
+ nativecomptable[i].descriptor =
+ utf_new_char(nativetable[i].descriptor);
+ nativecomptable[i].isstatic =
+ nativetable[i].isstatic;
+ nativecomptable[i].func =
+ nativetable[i].func;
}
+ nativecompdone = true;
+ }
- for (i=0; i<NATIVETABLESIZE; i++) {
+#ifdef JOWENN_DEBUG
+ buffer_len =
+ utf_strlen(cname) + utf_strlen(mname) + utf_strlen(desc) + 64;
+
+ buffer = MNEW(char, buffer_len);
+
+ strcpy(buffer, "searching matching function in native table:");
+ utf_sprint(buffer+strlen(buffer), mname);
+ strcpy(buffer+strlen(buffer), ": ");
+ utf_sprint(buffer+strlen(buffer), desc);
+ strcpy(buffer+strlen(buffer), " for class ");
+ utf_sprint(buffer+strlen(buffer), cname);
+
+ log_text(buffer);
+
+ MFREE(buffer, char, buffer_len);
+#endif
+
+ for (i = 0; i < NATIVETABLESIZE; i++) {
n = &(nativecomptable[i]);
- if (cname==n->classname && mname==n->methodname &&
- desc==n->descriptor && isstatic==n->isstatic) return n->func;
- }
+ if (cname == n->classname && mname == n->methodname &&
+ desc == n->descriptor && isstatic == n->isstatic)
+ return n->func;
+#ifdef JOWENN_DEBUG
+ else {
+ if (cname == n->classname && mname == n->methodname ) log_text("static and descriptor mismatch");
+
+ else {
+ buffer_len =
+ utf_strlen(n->classname) + utf_strlen(n->methodname) + utf_strlen(n->descriptor) + 64;
+
+ buffer = MNEW(char, buffer_len);
+ strcpy(buffer, "comparing with:");
+ utf_sprint(buffer+strlen(buffer), n->methodname);
+ strcpy (buffer+strlen(buffer), ": ");
+ utf_sprint(buffer+strlen(buffer), n->descriptor);
+ strcpy(buffer+strlen(buffer), " for class ");
+ utf_sprint(buffer+strlen(buffer), n->classname);
+
+ log_text(buffer);
+
+ MFREE(buffer, char, buffer_len);
+ }
+ }
+#endif
+ }
+
+
+ /* no function was found, display warning */
+
+ buffer_len =
+ utf_strlen(cname) + utf_strlen(mname) + utf_strlen(desc) + 64;
+
+ buffer = MNEW(char, buffer_len);
+
+ strcpy(buffer, "warning: native function ");
+ utf_sprint(buffer + strlen(buffer), mname);
+ strcpy(buffer + strlen(buffer), ": ");
+ utf_sprint(buffer + strlen(buffer), desc);
+ strcpy(buffer + strlen(buffer), " not found in class ");
+ utf_sprint(buffer + strlen(buffer), cname);
+
+ log_text(buffer);
+
+ MFREE(buffer, char, buffer_len);
+
+/* exit(1); */
+
+ /* keep compiler happy */
return NULL;
}
-/********************** Funktion: javastring_new *****************************
+/********************** function: javastring_new *******************************
- Legt ein neues Objekt vom Typ java/lang/String an, und tr"agt als Text
- das "ubergebene unicode-Symbol ein.
- Return: Zeiger auf den String, oder NULL (wenn Speicher aus)
+ creates a new object of type java/lang/String with the text of
+ the specified utf8-string
-*****************************************************************************/
+ return: pointer to the string or NULL if memory is exhausted.
-java_objectheader *javastring_new (unicode *text)
+*******************************************************************************/
+
+java_lang_String *javastring_new(utf *u)
{
- u4 i;
- java_lang_String *s;
+ char *utf_ptr = u->text; /* current utf character in utf string */
+ int utflength = utf_strlen(u); /* length of utf-string if uncompressed */
+ java_lang_String *s; /* result-string */
java_chararray *a;
+ s4 i;
- s = (java_lang_String*) builtin_new (class_java_lang_String);
- a = builtin_newarray_char (text->length);
+ s = (java_lang_String *) builtin_new(class_java_lang_String);
+ a = builtin_newarray_char(utflength);
- if ( (!a) || (!s) ) return NULL;
+ /* javastring or character-array could not be created */
+ if (!a || !s)
+ return NULL;
- for (i=0; i<text->length; i++) a->data[i] = text->text[i];
- s -> value = a;
- s -> offset = 0;
- s -> count = text->length;
+ /* decompress utf-string */
+ for (i = 0; i < utflength; i++)
+ a->data[i] = utf_nextu2(&utf_ptr);
+
+ /* set fields of the javastring-object */
+ s->value = a;
+ s->offset = 0;
+ s->count = utflength;
- return (java_objectheader*) s;
+ return s;
}
-/********************** Funktion: javastring_new_char ************************
+/********************** function: javastring_new_char **************************
- Legt ein neues Objekt vom Typ java/lang/String an, und tr"agt als Text
- den "ubergebenen C-String ein.
- Return: Zeiger auf den String, oder NULL (wenn Speicher aus)
+ creates a new java/lang/String object which contains the convertet
+ C-string passed via text.
-*****************************************************************************/
+ return: the object pointer or NULL if memory is exhausted.
+
+*******************************************************************************/
-java_objectheader *javastring_new_char (char *text)
+java_lang_String *javastring_new_char(char *text)
{
- u4 i;
- u4 len = strlen(text);
- java_lang_String *s;
+ s4 i;
+ s4 len = strlen(text); /* length of the string */
+ java_lang_String *s; /* result-string */
java_chararray *a;
- s = (java_lang_String*) builtin_new (class_java_lang_String);
- a = builtin_newarray_char (len);
+ s = (java_lang_String *) builtin_new(class_java_lang_String);
+ a = builtin_newarray_char(len);
- if ( (!a) || (!s) ) return NULL;
+ /* javastring or character-array could not be created */
+ if (!a || !s)
+ return NULL;
- for (i=0; i<len; i++) a->data[i] = text[i];
- s -> value = a;
- s -> offset = 0;
- s -> count = len;
+ /* copy text */
+ for (i = 0; i < len; i++)
+ a->data[i] = text[i];
+
+ /* set fields of the javastring-object */
+ s->value = a;
+ s->offset = 0;
+ s->count = len;
- return (java_objectheader*) s;
+ return s;
}
-/************************* Funktion: javastring_tochar *****************************
+/************************* function javastring_tochar **************************
- Macht aus einem java-string einen C-String, und liefert den Zeiger
- darauf zur"uck.
- Achtung: Beim n"achsten Aufruf der Funktion wird der vorige String
- "uberschrieben
+ converts a Java string into a C string.
-***********************************************************************************/
+ return: pointer to C string
+
+ Caution: every call of this function overwrites the previous string !!!
+
+*******************************************************************************/
-#define MAXSTRINGSIZE 1000
-char stringbuffer[MAXSTRINGSIZE];
+static char stringbuffer[MAXSTRINGSIZE];
-char *javastring_tochar (java_objectheader *so)
+char *javastring_tochar(java_objectheader *so)
{
- java_lang_String *s = (java_lang_String*) so;
+ java_lang_String *s = (java_lang_String *) so;
java_chararray *a;
- u4 i;
+ s4 i;
- if (!s) return "";
+ if (!s)
+ return "";
+
a = s->value;
- if (!a) return "";
- if (s->count > MAXSTRINGSIZE) return "";
- for (i=0; i<s->count; i++) stringbuffer[i] = a->data[s->offset+i];
+
+ if (!a)
+ return "";
+
+ if (s->count > MAXSTRINGSIZE)
+ return "";
+
+ for (i = 0; i < s->count; i++)
+ stringbuffer[i] = a->data[s->offset + i];
+
stringbuffer[i] = '\0';
+
return stringbuffer;
}
-/******************** Funktion: native_new_and_init *************************
+/****************** function class_findfield_approx ****************************
+
+ searches in 'classinfo'-structure for a field with the
+ specified name
+
+*******************************************************************************/
+
+fieldinfo *class_findfield_approx(classinfo *c, utf *name)
+{
+ s4 i;
+
+ for (i = 0; i < c->fieldscount; i++) {
+ /* compare field names */
+ if ((c->fields[i].name == name))
+ return &(c->fields[i]);
+ }
+
+ /* field was not found, raise exception */
+ *exceptionptr = new_exception(string_java_lang_NoSuchFieldException);
+
+ return NULL;
+}
+
+
+s4 class_findfield_index_approx(classinfo *c, utf *name)
+{
+ s4 i;
+
+ for (i = 0; i < c->fieldscount; i++) {
+ /* compare field names */
+ if ((c->fields[i].name == name))
+ return i;
+ }
+
+ /* field was not found, raise exception */
+ *exceptionptr = new_exception(string_java_lang_NoSuchFieldException);
- Legt ein neues Objekt einer Klasse am Heap an, und ruft automatisch
- die Initialisierungsmethode auf.
- Return: Der Zeiger auf das Objekt, oder NULL, wenn kein Speicher
- mehr frei ist.
+ return -1;
+}
+
+
+/********************** function: native_new_and_init *************************
+
+ Creates a new object on the heap and calls the initializer.
+ Returns the object pointer or NULL if memory is exhausted.
-*****************************************************************************/
+*******************************************************************************/
-java_objectheader *native_new_and_init (classinfo *c)
+java_objectheader *native_new_and_init(classinfo *c)
{
methodinfo *m;
- java_objectheader *o = builtin_new (c);
+ java_objectheader *o;
- if (!o) return NULL;
+ if (!c)
+ return *exceptionptr;
+
+ o = builtin_new(c); /* create object */
- m = class_findmethod (c,
- unicode_new_char ("<init>"),
- unicode_new_char ("()V"));
- if (!m) {
- log_text ("warning: class has no instance-initializer:");
- unicode_sprint (logtext, c->name);
- dolog();
+ if (!o)
+ return NULL;
+
+ /* find initializer */
+
+ m = class_findmethod(c,
+ utf_new_char("<init>"),
+ utf_new_char("()V"));
+
+ if (!m) { /* initializer not found */
+ if (verbose) {
+ char logtext[MAXLOGTEXT];
+ sprintf(logtext, "Warning: class has no instance-initializer: ");
+ utf_sprint_classname(logtext + strlen(logtext), c->name);
+ log_text(logtext);
+ }
return o;
+ }
+
+ /* call initializer */
+
+ asm_calljavafunction(m, o, NULL, NULL, NULL);
+
+ return o;
+}
+
+
+java_objectheader *native_new_and_init_string(classinfo *c, java_lang_String *s)
+{
+ methodinfo *m;
+ java_objectheader *o;
+
+ if (!c)
+ return *exceptionptr;
+
+ o = builtin_new(c); /* create object */
+
+ if (!o)
+ return NULL;
+
+ /* find initializer */
+
+ m = class_findmethod(c,
+ utf_new_char("<init>"),
+ utf_new_char("(Ljava/lang/String;)V"));
+
+ if (!m) { /* initializer not found */
+ if (verbose) {
+ char logtext[MAXLOGTEXT];
+ sprintf(logtext, "Warning: class has no instance-initializer: ");
+ utf_sprint_classname(logtext + strlen(logtext), c->name);
+ log_text(logtext);
}
+ return o;
+ }
+
+ /* call initializer */
+
+ asm_calljavafunction(m, o, s, NULL, NULL);
- asm_calljavamethod (m, o,NULL,NULL,NULL);
return o;
}
-/********************* Funktion: literalstring_new ****************************
+java_objectheader *native_new_and_init_int(classinfo *c, s4 i)
+{
+ methodinfo *m;
+ java_objectheader *o;
+
+ if (!c)
+ return *exceptionptr;
- erzeugt einen Java-String mit dem angegebenen Text, allerdings nicht
- auf dem HEAP, sondern in einem anderen Speicherbereich (der String
- muss dann sp"ater explizit wieder freigegeben werden).
- Alle Strings, die auf diese Art erzeugt werden, werden in einer
- gemeinsamen Struktur gespeichert (n"amlich auch "uber die
- Unicode-Hashtabelle), sodass identische Strings auch wirklich den
- gleichen Zeiger liefern.
+ o = builtin_new(c); /* create object */
-******************************************************************************/
+ if (!o) return NULL;
+
+ /* find initializer */
+
+ m = class_findmethod(c,
+ utf_new_char("<init>"),
+ utf_new_char("(I)V"));
+
+ if (!m) { /* initializer not found */
+ if (verbose) {
+ char logtext[MAXLOGTEXT];
+ sprintf(logtext, "Warning: class has no instance-initializer: ");
+ utf_sprint_classname(logtext + strlen(logtext), c->name);
+ log_text(logtext);
+ }
+ return o;
+ }
+
+ /* call initializer */
-java_objectheader *literalstring_new (unicode *text)
+#if defined(__I386__) || defined(__POWERPC__)
+ asm_calljavafunction(m, o, (void *) i, NULL, NULL);
+#else
+ asm_calljavafunction(m, o, (void *) (s8) i, NULL, NULL);
+#endif
+
+ return o;
+}
+
+
+java_objectheader *native_new_and_init_throwable(classinfo *c, java_lang_Throwable *t)
{
- u4 i;
- java_lang_String *s;
+ methodinfo *m;
+ java_objectheader *o;
+
+ if (!c)
+ return *exceptionptr;
+
+ o = builtin_new(c); /* create object */
+
+ if (!o) return NULL;
+
+ /* find initializer */
+
+ m = class_findmethod(c,
+ utf_new_char("<init>"),
+ utf_new_char("(Ljava/lang/Throwable;)V"));
+
+ if (!m) { /* initializer not found */
+ if (verbose) {
+ char logtext[MAXLOGTEXT];
+ sprintf(logtext, "Warning: class has no instance-initializer: ");
+ utf_sprint_classname(logtext + strlen(logtext), c->name);
+ log_text(logtext);
+ }
+ return o;
+ }
+
+ /* call initializer */
+
+ asm_calljavafunction(m, o, t, NULL, NULL);
+
+ return o;
+}
+
+
+/******************** function: stringtable_update ****************************
+
+ traverses the javastring hashtable and sets the vftbl-entries of
+ javastrings which were temporarily set to NULL, because
+ java.lang.Object was not yet loaded
+
+*******************************************************************************/
+
+void stringtable_update ()
+{
+ java_lang_String *js;
java_chararray *a;
+ literalstring *s; /* hashtable entry */
+ int i;
+
+ for (i = 0; i < string_hash.size; i++) {
+ s = string_hash.ptr[i];
+ if (s) {
+ while (s) {
+
+ js = (java_lang_String *) s->string;
+
+ if (!js || !js->value)
+ /* error in hashtable found */
+ panic("invalid literalstring in hashtable");
+
+ a = js->value;
+
+ if (!js->header.vftbl)
+ /* vftbl of javastring is NULL */
+ js->header.vftbl = class_java_lang_String->vftbl;
+
+ if (!a->header.objheader.vftbl)
+ /* vftbl of character-array is NULL */
+ a->header.objheader.vftbl = primitivetype_table[ARRAYTYPE_CHAR].arrayvftbl;
+
+ /* follow link in external hash chain */
+ s = s->hashlink;
+ }
+ }
+ }
+}
+
+
+/************************* function: u2_utflength ***************************
+
+ returns the utf length in bytes of a u2 array
+
+*****************************************************************************/
- if (text->string) return text->string;
+u4 u2_utflength(u2 *text, u4 u2_length)
+{
+ u4 result_len = 0; /* utf length in bytes */
+ u2 ch; /* current unicode character */
+ u4 len;
- a = lit_mem_alloc (sizeof(java_chararray) + sizeof(u2)*(text->length-1) );
- a -> header.objheader.vftbl = class_array -> vftbl;
- a -> header.size = text->length;
- a -> header.arraytype = ARRAYTYPE_CHAR;
- for (i=0; i<text->length; i++) a->data[i] = text->text[i];
+ for (len = 0; len < u2_length; len++) {
+ /* next unicode character */
+ ch = *text++;
+
+ /* determine bytes required to store unicode character as utf */
+ if (ch && (ch < 0x80))
+ result_len++;
+ else if (ch < 0x800)
+ result_len += 2;
+ else
+ result_len += 3;
+ }
+
+ return result_len;
+}
+
+
+/********************* function: utf_new_u2 ***********************************
+
+ make utf symbol from u2 array,
+ if isclassname is true '.' is replaced by '/'
+
+*******************************************************************************/
+
+utf *utf_new_u2(u2 *unicode_pos, u4 unicode_length, bool isclassname)
+{
+ char *buffer; /* memory buffer for unicode characters */
+ char *pos; /* pointer to current position in buffer */
+ u4 left; /* unicode characters left */
+ u4 buflength; /* utf length in bytes of the u2 array */
+ utf *result; /* resulting utf-string */
+ int i;
+
+ /* determine utf length in bytes and allocate memory */
+ /* printf("utf_new_u2: unicode_length=%d\n",unicode_length); */
+ buflength = u2_utflength(unicode_pos, unicode_length);
+ buffer = MNEW(char, buflength);
+
+ left = buflength;
+ pos = buffer;
+
+ for (i = 0; i++ < unicode_length; unicode_pos++) {
+ /* next unicode character */
+ u2 c = *unicode_pos;
+
+ if ((c != 0) && (c < 0x80)) {
+ /* 1 character */
+ left--;
+ if ((int) left < 0) break;
+ /* convert classname */
+ if (isclassname && c == '.')
+ *pos++ = '/';
+ else
+ *pos++ = (char) c;
+
+ } else if (c < 0x800) {
+ /* 2 characters */
+ unsigned char high = c >> 6;
+ unsigned char low = c & 0x3F;
+ left = left - 2;
+ if ((int) left < 0) break;
+ *pos++ = high | 0xC0;
+ *pos++ = low | 0x80;
+
+ } else {
+ /* 3 characters */
+ char low = c & 0x3f;
+ char mid = (c >> 6) & 0x3F;
+ char high = c >> 12;
+ left = left - 3;
+ if ((int) left < 0) break;
+ *pos++ = high | 0xE0;
+ *pos++ = mid | 0x80;
+ *pos++ = low | 0x80;
+ }
+ }
+
+ /* insert utf-string into symbol-table */
+ result = utf_new(buffer,buflength);
+
+ MFREE(buffer, char, buflength);
+
+ return result;
+}
+
+
+/********************* function: javastring_toutf *****************************
+
+ make utf symbol from javastring
+
+*******************************************************************************/
+
+utf *javastring_toutf(java_lang_String *string, bool isclassname)
+{
+ java_lang_String *str = (java_lang_String *) string;
+
+/* printf("javastring_toutf offset: %d, len %d\n",str->offset, str->count); */
+/* fflush(stdout); */
+
+ return utf_new_u2(str->value->data + str->offset, str->count, isclassname);
+}
+
+
+/********************* function: literalstring_u2 *****************************
+
+ searches for the javastring with the specified u2-array in
+ the string hashtable, if there is no such string a new one is
+ created
+
+ if copymode is true a copy of the u2-array is made
+
+*******************************************************************************/
+
+java_objectheader *literalstring_u2(java_chararray *a, u4 length, u4 offset,
+ bool copymode)
+{
+ literalstring *s; /* hashtable element */
+ java_lang_String *js; /* u2-array wrapped in javastring */
+ java_chararray *stringdata; /* copy of u2-array */
+ classinfo *c;
+ u4 key;
+ u4 slot;
+ u2 i;
+
+//#define DEBUG_LITERALSTRING_U2
+#ifdef DEBUG_LITERALSTRING_U2
+ printf("literalstring_u2: length=%d, offset=%d\n", length, offset);
+ fflush(stdout);
+#endif
+
+ /* find location in hashtable */
+ key = unicode_hashkey(a->data + offset, length);
+ slot = key & (string_hash.size - 1);
+ s = string_hash.ptr[slot];
+
+ while (s) {
+ js = (java_lang_String *) s->string;
+
+ if (length == js->count) {
+ /* compare text */
+ for (i = 0; i < length; i++) {
+ if (a->data[offset + i] != js->value->data[i])
+ goto nomatch;
+ }
+
+ /* string already in hashtable, free memory */
+ if (!copymode)
+ lit_mem_free(a, sizeof(java_chararray) + sizeof(u2) * (length - 1) + 10);
+
+#ifdef DEBUG_LITERALSTRING_U2
+ printf("literalstring_u2: foundentry at %p\n", js);
+ utf_display(javastring_toutf(js, 0));
+ printf("\n\n");
+ fflush(stdout);
+#endif
+ return (java_objectheader *) js;
+ }
+
+ nomatch:
+ /* follow link in external hash chain */
+ s = s->hashlink;
+ }
+
+ if (copymode) {
+ /* create copy of u2-array for new javastring */
+ u4 arraysize = sizeof(java_chararray) + sizeof(u2) * (length - 1) + 10;
+ stringdata = lit_mem_alloc(arraysize);
+/* memcpy(stringdata, a, arraysize); */
+ memcpy(&(stringdata->header), &(a->header), sizeof(java_arrayheader));
+ memcpy(&(stringdata->data), &(a->data) + offset, sizeof(u2) * (length - 1) + 10);
+
+ } else {
+ stringdata = a;
+ }
+
+ /* location in hashtable found, complete arrayheader */
+ stringdata->header.objheader.vftbl = primitivetype_table[ARRAYTYPE_CHAR].arrayvftbl;
+ stringdata->header.size = length;
+
+ /* if we use eager loading, we have to check loaded String class */
+ if (opt_eager) {
+ class_java_lang_String =
+ class_new_intern(utf_new_char("java/lang/String"));
+
+ if (!class_load(class_java_lang_String))
+ return NULL;
+
+ list_addfirst(&unlinkedclasses, class_java_lang_String);
+ }
+
+ /* create new javastring */
+ js = LNEW(java_lang_String);
+ js->header.vftbl = class_java_lang_String->vftbl;
+ js->value = stringdata;
+ js->offset = 0;
+ js->count = length;
+
+#ifdef DEBUG_LITERALSTRING_U2
+ printf("literalstring_u2: newly created at %p\n", js);
+ utf_display(javastring_toutf(js, 0));
+ printf("\n\n");
+ fflush(stdout);
+#endif
+
+ /* create new literalstring */
+ s = NEW(literalstring);
+ s->hashlink = string_hash.ptr[slot];
+ s->string = (java_objectheader *) js;
+ string_hash.ptr[slot] = s;
+
+ /* update number of hashtable entries */
+ string_hash.entries++;
+
+ /* reorganization of hashtable */
+ if (string_hash.entries > (string_hash.size * 2)) {
+ /* reorganization of hashtable, average length of
+ the external chains is approx. 2 */
+
+ u4 i;
+ literalstring *s;
+ hashtable newhash; /* the new hashtable */
+
+ /* create new hashtable, double the size */
+ init_hashtable(&newhash, string_hash.size * 2);
+ newhash.entries = string_hash.entries;
+
+ /* transfer elements to new hashtable */
+ for (i = 0; i < string_hash.size; i++) {
+ s = string_hash.ptr[i];
+ while (s) {
+ literalstring *nexts = s->hashlink;
+ js = (java_lang_String *) s->string;
+ slot = unicode_hashkey(js->value->data, js->count) & (newhash.size - 1);
+
+ s->hashlink = newhash.ptr[slot];
+ newhash.ptr[slot] = s;
+
+ /* follow link in external hash chain */
+ s = nexts;
+ }
+ }
+
+ /* dispose old table */
+ MFREE(string_hash.ptr, void*, string_hash.size);
+ string_hash = newhash;
+ }
+
+ return (java_objectheader *) js;
+}
+
+
+/******************** Function: literalstring_new *****************************
+
+ creates a new javastring with the text of the utf-symbol
+ and inserts it into the string hashtable
+
+*******************************************************************************/
- s = LNEW (java_lang_String);
- s -> header.vftbl = class_java_lang_String -> vftbl;
- s -> value = a;
- s -> offset = 0;
- s -> count = text->length;
+java_objectheader *literalstring_new(utf *u)
+{
+ char *utf_ptr = u->text; /* pointer to current unicode character in utf string */
+ u4 utflength = utf_strlen(u); /* length of utf-string if uncompressed */
+ java_chararray *a; /* u2-array constructed from utf string */
+ u4 i;
+
+ /* allocate memory */
+ a = lit_mem_alloc(sizeof(java_chararray) + sizeof(u2) * (utflength - 1) + 10);
- unicode_setstringlink (text, (java_objectheader*) s);
- return (java_objectheader*) s;
+ /* convert utf-string to u2-array */
+ for (i = 0; i < utflength; i++)
+ a->data[i] = utf_nextu2(&utf_ptr);
+
+ return literalstring_u2(a, utflength, 0, false);
}
-/********************** Funktion: literalstring_free **************************
+/********************** function: literalstring_free **************************
- L"oscht einen Java-String wieder aus dem Speicher (wird zu Systemende
- vom Hashtabellen-Verwalter aufgerufen)
+ removes a javastring from memory
******************************************************************************/
-void literalstring_free (java_objectheader* sobj)
+void literalstring_free(java_objectheader* sobj)
{
- java_lang_String *s = (java_lang_String*) sobj;
+ java_lang_String *s = (java_lang_String *) sobj;
java_chararray *a = s->value;
-
- LFREE (s, java_lang_String);
- LFREE (a, sizeof(java_chararray) + sizeof(u2)*(a->header.size-1));
+
+ /* dispose memory of java.lang.String object */
+ LFREE(s, java_lang_String);
+
+ /* dispose memory of java-characterarray */
+ LFREE(a, sizeof(java_chararray) + sizeof(u2) * (a->header.size - 1)); /* +10 ?? */
+}
+
+
+void copy_vftbl(vftbl_t **dest, vftbl_t *src)
+{
+ *dest = src;
+#if 0
+ /* XXX this kind of copying does not work (in the general
+ * case). The interface tables would have to be copied, too. I
+ * don't see why we should make a copy anyway. -Edwin
+ */
+ *dest = mem_alloc(sizeof(vftbl) + sizeof(methodptr)*(src->vftbllength-1));
+ memcpy(*dest, src, sizeof(vftbl) - sizeof(methodptr));
+ memcpy(&(*dest)->table, &src->table, src->vftbllength * sizeof(methodptr));
+#endif
+}
+
+
+/******************************************************************************************
+
+ creates method signature (excluding return type) from array of
+ class-objects representing the parameters of the method
+
+*******************************************************************************************/
+
+
+utf *create_methodsig(java_objectarray* types, char *retType)
+{
+ char *buffer; /* buffer for building the desciptor */
+ char *pos; /* current position in buffer */
+ utf *result; /* the method signature */
+ u4 buffer_size = 3; /* minimal size=3: room for parenthesis and returntype */
+ u4 i, j;
+
+ if (!types) return NULL;
+
+ /* determine required buffer-size */
+ for (i = 0; i < types->header.size; i++) {
+ classinfo *c = (classinfo *) types->data[i];
+ buffer_size = buffer_size + c->name->blength + 2;
+ }
+
+ if (retType) buffer_size += strlen(retType);
+
+ /* allocate buffer */
+ buffer = MNEW(u1, buffer_size);
+ pos = buffer;
+
+ /* method-desciptor starts with parenthesis */
+ *pos++ = '(';
+
+ for (i = 0; i < types->header.size; i++) {
+ char ch;
+
+ /* current argument */
+ classinfo *c = (classinfo *) types->data[i];
+
+ /* current position in utf-text */
+ char *utf_ptr = c->name->text;
+
+ /* determine type of argument */
+ if ((ch = utf_nextu2(&utf_ptr)) == '[') {
+ /* arrayclass */
+ for (utf_ptr--; utf_ptr < utf_end(c->name); utf_ptr++) {
+ *pos++ = *utf_ptr; /* copy text */
+ }
+
+ } else {
+ /* check for primitive types */
+ for (j = 0; j < PRIMITIVETYPE_COUNT; j++) {
+ char *utf_pos = utf_ptr - 1;
+ char *primitive = primitivetype_table[j].wrapname;
+
+ /* compare text */
+ while (utf_pos < utf_end(c->name)) {
+ if (*utf_pos++ != *primitive++) goto nomatch;
+ }
+
+ /* primitive type found */
+ *pos++ = primitivetype_table[j].typesig;
+ goto next_type;
+
+ nomatch:
+ ;
+ }
+
+ /* no primitive type and no arrayclass, so must be object */
+ *pos++ = 'L';
+
+ /* copy text */
+ for (utf_ptr--; utf_ptr < utf_end(c->name); utf_ptr++) {
+ *pos++ = *utf_ptr;
+ }
+
+ *pos++ = ';';
+
+ next_type:
+ ;
+ }
+ }
+
+ *pos++ = ')';
+
+ if (retType) {
+ for (i = 0; i < strlen(retType); i++) {
+ *pos++ = retType[i];
+ }
+ }
+
+ /* create utf-string */
+ result = utf_new(buffer, (pos - buffer));
+ MFREE(buffer, u1, buffer_size);
+
+ return result;
+}
+
+
+/******************************************************************************************
+
+ retrieve the next argument or returntype from a descriptor
+ and return the corresponding class
+
+*******************************************************************************************/
+
+classinfo *get_type(char **utf_ptr,char *desc_end, bool skip)
+{
+ classinfo *c = class_from_descriptor(*utf_ptr,desc_end,utf_ptr,
+ (skip) ? CLASSLOAD_SKIP : CLASSLOAD_LOAD);
+ if (!c)
+ /* unknown type */
+ panic("illegal descriptor");
+
+ if (skip) return NULL;
+
+ use_class_as_object(c);
+ return c;
}
+/* get_parametertypes **********************************************************
+
+ use the descriptor of a method to generate a java/lang/Class array
+ which contains the classes of the parametertypes of the method
+
+*******************************************************************************/
+
+java_objectarray* get_parametertypes(methodinfo *m)
+{
+ utf *descr = m->descriptor; /* method-descriptor */
+ char *utf_ptr = descr->text; /* current position in utf-text */
+ char *desc_end = utf_end(descr); /* points behind utf string */
+ java_objectarray* result;
+ int parametercount = 0;
+ int i;
+
+ /* skip '(' */
+ utf_nextu2(&utf_ptr);
+
+ /* determine number of parameters */
+ while (*utf_ptr != ')') {
+ get_type(&utf_ptr, desc_end, true);
+ parametercount++;
+ }
+
+ /* create class-array */
+ result = builtin_anewarray(parametercount, class_java_lang_Class);
+
+ utf_ptr = descr->text;
+ utf_nextu2(&utf_ptr);
+
+ /* get returntype classes */
+ for (i = 0; i < parametercount; i++)
+ result->data[i] =
+ (java_objectheader *) get_type(&utf_ptr, desc_end, false);
+
+ return result;
+}
+
+
+/* get_exceptiontypes **********************************************************
+
+ get the exceptions which can be thrown by a method
+
+*******************************************************************************/
+
+java_objectarray* get_exceptiontypes(methodinfo *m) {
+ u2 exccount=m->thrownexceptionscount;
+ u2 i;
+ java_objectarray *result;
+ /* create class-array */
+ result = builtin_anewarray(exccount, class_java_lang_Class);
+ for (i=0;i<exccount;i++) {
+ java_objectheader *oh=(java_objectheader*)(m->thrownexceptions[i]);
+ use_class_as_object(oh);
+ result->data[i]=oh;
+ }
+ return result;
+}
+
+
+
+
+
+/******************************************************************************************
+
+ get the returntype class of a method
+
+*******************************************************************************************/
+
+classinfo *get_returntype(methodinfo *m)
+{
+ char *utf_ptr; /* current position in utf-text */
+ char *desc_end; /* points behind utf string */
+ utf *desc = m->descriptor; /* method-descriptor */
+
+ utf_ptr = desc->text;
+ desc_end = utf_end(desc);
+
+ /* ignore parametertypes */
+ while ((utf_ptr<desc_end) && utf_nextu2(&utf_ptr)!=')')
+ /* skip */ ;
+
+ return get_type(&utf_ptr,desc_end, false);
+}
+
+
+/*****************************************************************************/
+/*****************************************************************************/
+
+
+/*--------------------------------------------------------*/
+void printNativeCall(nativeCall nc) {
+ int i,j;
+
+ printf("\n%s's Native Methods call:\n",nc.classname); fflush(stdout);
+ for (i=0; i<nc.methCnt; i++) {
+ printf("\tMethod=%s %s\n",nc.methods[i].methodname, nc.methods[i].descriptor);fflush(stdout);
+
+ for (j=0; j<nc.callCnt[i]; j++) {
+ printf("\t\t<%i,%i>aCalled = %s %s %s\n",i,j,
+ nc.methods[i].methodCalls[j].classname,
+ nc.methods[i].methodCalls[j].methodname,
+ nc.methods[i].methodCalls[j].descriptor);fflush(stdout);
+ }
+ }
+ printf("-+++++--------------------\n");fflush(stdout);
+}
+
+/*--------------------------------------------------------*/
+void printCompNativeCall(nativeCompCall nc) {
+ int i,j;
+ printf("printCompNativeCall BEGIN\n");fflush(stdout);
+ printf("\n%s's Native Comp Methods call:\n",nc.classname->text);fflush(stdout);
+ utf_display(nc.classname); fflush(stdout);
+
+ for (i=0; i<nc.methCnt; i++) {
+ printf("\tMethod=%s %s\n",nc.methods[i].methodname->text,nc.methods[i].descriptor->text);fflush(stdout);
+ utf_display(nc.methods[i].methodname); fflush(stdout);
+ utf_display(nc.methods[i].descriptor);fflush(stdout);
+ printf("\n");fflush(stdout);
+
+ for (j=0; j<nc.callCnt[i]; j++) {
+ printf("\t\t<%i,%i>bCalled = ",i,j);fflush(stdout);
+ utf_display(nc.methods[i].methodCalls[j].classname);fflush(stdout);
+ utf_display(nc.methods[i].methodCalls[j].methodname); fflush(stdout);
+ utf_display(nc.methods[i].methodCalls[j].descriptor);fflush(stdout);
+ printf("\n");fflush(stdout);
+ }
+ }
+printf("---------------------\n");fflush(stdout);
+}
+
+
+/*--------------------------------------------------------*/
+classMeth findNativeMethodCalls(utf *c, utf *m, utf *d )
+{
+ int i = 0;
+ int j = 0;
+ int cnt = 0;
+ classMeth mc;
+ mc.i_class = i;
+ mc.j_method = j;
+ mc.methCnt = cnt;
+
+ return mc;
+}
+
+/*--------------------------------------------------------*/
+nativeCall* findNativeClassCalls(char *aclassname ) {
+int i;
+
+for (i=0;i<NATIVECALLSSIZE; i++) {
+ /* convert table to utf later to speed up search */
+ if (strcmp(nativeCalls[i].classname, aclassname) == 0)
+ return &nativeCalls[i];
+ }
+
+return NULL;
+}
+/*--------------------------------------------------------*/
+/*--------------------------------------------------------*/
+void utfNativeCall(nativeCall nc, nativeCompCall *ncc) {
+ int i,j;
+
+
+ ncc->classname = utf_new_char(nc.classname);
+ ncc->methCnt = nc.methCnt;
+
+ for (i=0; i<nc.methCnt; i++) {
+ ncc->methods[i].methodname = utf_new_char(nc.methods[i].methodname);
+ ncc->methods[i].descriptor = utf_new_char(nc.methods[i].descriptor);
+ ncc->callCnt[i] = nc.callCnt[i];
+
+ for (j=0; j<nc.callCnt[i]; j++) {
+
+ ncc->methods[i].methodCalls[j].classname = utf_new_char(nc.methods[i].methodCalls[j].classname);
+
+ if (strcmp("", nc.methods[i].methodCalls[j].methodname) != 0) {
+ ncc->methods[i].methodCalls[j].methodname = utf_new_char(nc.methods[i].methodCalls[j].methodname);
+ ncc->methods[i].methodCalls[j].descriptor = utf_new_char(nc.methods[i].methodCalls[j].descriptor);
+ }
+ else {
+ ncc->methods[i].methodCalls[j].methodname = NULL;
+ ncc->methods[i].methodCalls[j].descriptor = NULL;
+ }
+ }
+ }
+}
+
+
+
+/*--------------------------------------------------------*/
+
+bool natcall2utf(bool natcallcompdone) {
+int i;
+
+if (natcallcompdone)
+ return true;
+
+for (i=0;i<NATIVECALLSSIZE; i++) {
+ utfNativeCall (nativeCalls[i], &nativeCompCalls[i]);
+ }
+
+return true;
+}
+
+/*--------------------------------------------------------*/
+
+
+java_objectarray *builtin_asm_createclasscontextarray(classinfo **end,classinfo **start)
+{
+#if defined(__GNUC__)
+#warning platform dependend
+#endif
+ java_objectarray *tmpArray;
+ int i;
+ classinfo **current;
+ classinfo *c;
+ size_t size=(((size_t)start)-((size_t)end)) / sizeof (classinfo*);
+ /*printf("end %p, start %p, size %ld\n",end,start,size);*/
+ if (!class_java_lang_Class)
+ class_java_lang_Class = class_new(utf_new_char ("java/lang/Class"));
+ if (!class_java_lang_SecurityManager)
+ class_java_lang_SecurityManager = class_new(utf_new_char ("java/lang/SecurityManager"));
+ if (size>0) {
+ if (start==class_java_lang_SecurityManager) {
+ size--;
+ start--;
+ }
+ }
+ tmpArray=builtin_newarray(size, class_array_of(class_java_lang_Class)->vftbl);
+
+ for(i=0,current=start;i<size;i++,current--) {
+ c=*current;
+/* printf("%d\n",i);
+ utf_display(c->name);*/
+ use_class_as_object(c);
+ tmpArray->data[i]=c;
+ }
+ return tmpArray;
+
+}
+
+java_lang_ClassLoader *builtin_asm_getclassloader(classinfo **end,classinfo **start)
+{
+#if defined(__GNUC__)
+#warning platform dependend
+#endif
+ int i;
+ classinfo **current;
+ classinfo *c;
+ classinfo *privilegedAction;
+ size_t size=(((size_t)start)-((size_t)end)) / sizeof (classinfo*);
+/* log_text("builtin_asm_getclassloader");
+ printf("end %p, start %p, size %ld\n",end,start,size);*/
+
+ if (!class_java_lang_SecurityManager)
+ class_java_lang_SecurityManager = class_new(utf_new_char ("java/lang/SecurityManager"));
+ if (size>0) {
+ if (start==class_java_lang_SecurityManager) {
+ size--;
+ start--;
+ }
+ }
+
+ privilegedAction=class_new(utf_new_char("java/security/PrivilegedAction"));
+
+ for(i=0,current=start;i<size;i++,current--) {
+ c=*current;
+ if (c==privilegedAction) return NULL;
+ if (c->classloader) return c->classloader;
+ }
+ return NULL;
+
+
+
+
+/*
+ log_text("Java_java_lang_VMSecurityManager_currentClassLoader");
+ init_systemclassloader();
+
+ return SystemClassLoader;*/
+}
+/*
+ * 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
+ * Emacs will automagically detect them.
+ * ---------------------------------------------------------------------
+ * Local variables:
+ * mode: c
+ * indent-tabs-mode: t
+ * c-basic-offset: 4
+ * tab-width: 4
+ * End:
+ */
projects / cacao.git / blobdiff