native.c

   1 /* native.c - table of native functions
   2
   3    Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
   4    R. Grafl, A. Krall, C. Kruegel, C. Oates, R. Obermaisser,
   5    M. Probst, S. Ring, E. Steiner, C. Thalinger, D. Thuernbeck,
   6    P. Tomsich, J. Wenninger
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  23    02111-1307, USA.
  24
  25    Contact: cacao@complang.tuwien.ac.at
  26
  27    Authors: Reinhard Grafl
  28             Roman Obermaisser
  29             Andreas Krall
  30
  31    The .hh files created with the header file generator are all
  32    included here as are the C functions implementing these methods.
  33
  34    $Id: native.c 833 2004-01-04 22:10:24Z jowenn $
  35
  36 */
  37
  38
  39 #include <stdlib.h>
  40 #include <unistd.h>
  41 #include <time.h>
  42 #include <math.h>
  43 #include <string.h>
  44 #include <assert.h>
  45 #include <sys/time.h>
  46 #include <utime.h>
  47
  48 #include "config.h"
  49 #include "global.h"
  50 #include "jni.h"
  51 #include "native.h"
  52 #include "nativetypes.hh"
  53 #include "builtin.h"
  54 #include "asmpart.h"
  55 #include "tables.h"
  56 #include "loader.h"
  57 #include "jni.h"
  58 #include "toolbox/loging.h"
  59 #include "toolbox/memory.h"
  60 #include "threads/thread.h"
  61 #include "threads/threadio.h"
  62 #include "threads/locks.h"
  63
  64 /* Include files for IO functions */
  65
  66 #include <fcntl.h>
  67 #include <dirent.h>
  68 #include <sys/types.h>
  69 #ifdef _OSF_SOURCE
  70 #include <sys/mode.h>
  71 #endif
  72 #include <sys/stat.h>
  73
  74 #include "threads/threadio.h"
  75
  76 /* searchpath for classfiles */
  77 char *classpath;
  78
  79 /* for java-string to char conversion */
  80 #define MAXSTRINGSIZE 1000
  81
  82 /******************** systemclasses required for native methods ***************/
  83
  84 classinfo *class_java_lang_Class;
  85 classinfo *class_java_lang_VMClass;
  86 methodinfo *method_vmclass_init;
  87 /* static classinfo *class_java_lang_Cloneable=0; */ /* now in global.h */
  88 classinfo *class_java_lang_CloneNotSupportedException;
  89 classinfo *class_java_lang_System;
  90 classinfo *class_java_lang_ClassLoader;
  91 classinfo *class_java_lang_NoClassDefFoundError;
  92 classinfo *class_java_lang_ClassNotFoundException;
  93 classinfo *class_java_lang_LinkageError;
  94 classinfo *class_java_lang_InstantiationException;
  95 classinfo *class_java_lang_NoSuchMethodError;
  96 classinfo *class_java_lang_NoSuchFieldError;
  97 classinfo *class_java_lang_ClassFormatError;
  98 classinfo *class_java_lang_IllegalArgumentException;
  99 classinfo *class_java_lang_ArrayIndexOutOfBoundsException;
 100 classinfo *class_java_lang_NoSuchFieldException;
 101 classinfo *class_java_io_SyncFailedException;
 102 classinfo *class_java_io_IOException;
 103 classinfo *class_java_io_FileNotFoundException;
 104 classinfo *class_java_io_UnixFileSystem;
 105 classinfo *class_java_security_PrivilegedActionException;
 106 classinfo *class_java_net_UnknownHostException;
 107 classinfo *class_java_net_SocketException;
 108 classinfo *class_java_lang_NoSuchMethodException;
 109 classinfo *class_java_lang_Double;
 110 classinfo *class_java_lang_Float;
 111 classinfo *class_java_lang_Long;
 112 classinfo *class_java_lang_Byte;
 113 classinfo *class_java_lang_Short;
 114 classinfo *class_java_lang_Boolean;
 115 classinfo *class_java_lang_Void;
 116 classinfo *class_java_lang_Character;
 117 classinfo *class_java_lang_Integer;
 118
 119 /* the system classloader object */
 120 struct java_lang_ClassLoader *SystemClassLoader = NULL;
 121
 122 /* for raising exceptions from native methods */
 123 java_objectheader* exceptionptr = NULL;
 124
 125 /************* use classinfo structure as java.lang.Class object **************/
 126
 127 void use_class_as_object(classinfo *c)
 128 {
 129         vftbl *vt;
 130 /*      vftbl *newtbl; */
 131
 132         if (!class_java_lang_Class)
 133                 class_java_lang_Class = class_new(utf_new_char ("java/lang/Class"));
 134
 135         vt = class_java_lang_Class->vftbl;
 136
 137
 138         if (!c->classvftbl) {
 139                 c->classvftbl = true;
 140
 141                 /*                copy_vftbl(&newtbl, vt);
 142                                                   newtbl->class = c->header.vftbl->class;
 143                                                   newtbl->baseval = c->header.vftbl->baseval;
 144                                                   newtbl->diffval = c->header.vftbl->diffval;
 145                                                   c->header.vftbl = newtbl;*/
 146
 147                 c->header.vftbl = class_java_lang_Class->vftbl;
 148
 149                 if (!class_java_lang_VMClass) {
 150                         loader_load_sysclass(&class_java_lang_VMClass,
 151                                                                  utf_new_char("java/lang/VMClass"));
 152
 153                         method_vmclass_init =
 154                                 class_findmethod(class_java_lang_VMClass,
 155                                                                  utf_new_char("<init>"),
 156                                                                  utf_new_char("(Lgnu/classpath/RawData;)V"));
 157
 158                         if (method_vmclass_init == 0) {
 159                                 class_showmethods(class_java_lang_VMClass);
 160                                 panic("Needed class initializer for VMClass could not be found");
 161                         }
 162                 }
 163                 {
 164                         java_objectheader *vmo = builtin_new(class_java_lang_VMClass);
 165
 166                         if (!vmo) panic("Error while creating instance of java/lang/VMClass");
 167                         asm_calljavafunction(method_vmclass_init, vmo, c, NULL, NULL);
 168                         c->vmClass = (java_lang_VMClass *) vmo;
 169                         /*log_text("VMCLASS has been attached");*/
 170                 }
 171         }
 172 }
 173
 174
 175 /*************************** include native methods ***************************/
 176
 177 #ifdef USE_GTK
 178 #include "nat/GdkGraphics.c"
 179 #include "nat/GtkComponentPeer.c"
 180 #include "nat/GdkPixbufDecoder.c"
 181 #include "nat/GtkScrollPanePeer.c"
 182 #include "nat/GtkFileDialogPeer.c"
 183 #include "nat/GtkLabelPeer.c"
 184 #endif
 185
 186
 187 /************************** tables for methods ********************************/
 188
 189 #undef JOWENN_DEBUG
 190 #undef JOWENN_DEBUG1
 191
 192 /* table for locating native methods */
 193 static struct nativeref {
 194         char *classname;
 195         char *methodname;
 196         char *descriptor;
 197         bool isstatic;
 198         functionptr func;
 199 } nativetable [] = {
 200
 201 #include "nativetable.hh"
 202
 203 };
 204
 205
 206 #define NATIVETABLESIZE  (sizeof(nativetable)/sizeof(struct nativeref))
 207
 208 /* table for fast string comparison */
 209 static struct nativecompref {
 210         utf *classname;
 211         utf *methodname;
 212         utf *descriptor;
 213         bool isstatic;
 214         functionptr func;
 215 } nativecomptable [NATIVETABLESIZE];
 216
 217 /* string comparsion table initialized */
 218 static bool nativecompdone = false;
 219
 220
 221 /******************************************************************************/
 222 /******************************************************************************/
 223 #include "natcalls.h"
 224
 225 /* string call comparison table initialized */
 226
 227 /******************************************************************************/
 228 /******************************************************************************/
 229
 230 /*--------------- native method calls & classes used -------------------------*/
 231
 232
 233
 234 /* throw some loader exceptions */
 235
 236 void throw_noclassdeffounderror_message(utf* classname)
 237 {
 238         if (!class_java_lang_NoClassDefFoundError) {
 239                 panic("java.lang.NoClassDefFoundError not found. Maybe wrong classpath?");
 240         }
 241
 242         /* throws a NoClassDefFoundError with message */
 243         exceptionptr = native_new_and_init_string(class_java_lang_NoClassDefFoundError,
 244                                                                                           javastring_new(classname));
 245 }
 246
 247
 248 void throw_linkageerror_message(utf* classname)
 249 {
 250         if (!class_java_lang_LinkageError) {
 251                 panic("java.lang.LinkageError not found. Maybe wrong classpath?");
 252         }
 253
 254         /* throws a LinkageError with message */
 255         exceptionptr = native_new_and_init_string(class_java_lang_LinkageError,
 256                                                                                           javastring_new(classname));
 257 }
 258
 259
 260 /*********************** function: native_loadclasses **************************
 261
 262         load classes required for native methods
 263
 264 *******************************************************************************/
 265
 266 void native_loadclasses()
 267 {
 268         static int classesLoaded=0; /*temporary hack JoWenn*/
 269         if (classesLoaded) return;
 270         classesLoaded = 1;
 271 /*      log_text("loadclasses entered");*/
 272
 273
 274         /*class_java_lang_System =*/
 275         (void) class_new(utf_new_char("java/lang/VMClass"));/*JoWenn*/
 276         (void) class_new(utf_new_char("java/lang/Class"));/*JoWenn*/
 277
 278         /* class_new adds the class to the list of classes to be loaded */
 279         if (!class_java_lang_Cloneable)
 280                 class_java_lang_Cloneable =
 281                         class_new(utf_new_char("java/lang/Cloneable"));
 282 /*      log_text("loadclasses: class_java_lang_Cloneable has been initialized");*/
 283         class_java_lang_CloneNotSupportedException =
 284                 class_new(utf_new_char("java/lang/CloneNotSupportedException"));
 285         if (!class_java_lang_Class)
 286                 class_java_lang_Class =
 287                         class_new(utf_new_char("java/lang/Class"));
 288         class_java_io_IOException =
 289                 class_new(utf_new_char("java/io/IOException"));
 290         class_java_io_FileNotFoundException =
 291                 class_new(utf_new_char("java/io/FileNotFoundException"));
 292         class_java_lang_NoClassDefFoundError =
 293                 class_new(utf_new_char("java/lang/NoClassDefFoundError"));
 294         class_java_lang_ClassNotFoundException =
 295                 class_new(utf_new_char("java/lang/ClassNotFoundException"));
 296         class_java_lang_LinkageError =
 297                 class_new(utf_new_char("java/lang/LinkageError"));
 298         class_java_lang_InstantiationException =
 299                 class_new(utf_new_char("java/lang/InstantiationException"));
 300         class_java_lang_NoSuchMethodError =
 301                 class_new(utf_new_char("java/lang/NoSuchMethodError"));
 302         class_java_lang_NoSuchFieldError =
 303                 class_new(utf_new_char("java/lang/NoSuchFieldError"));
 304         class_java_lang_ClassFormatError =
 305                 class_new(utf_new_char("java/lang/ClassFormatError"));
 306         class_java_io_SyncFailedException =
 307                 class_new(utf_new_char("java/io/SyncFailedException"));
 308
 309 /*      log_text("native_loadclasses: class_new(\"java/lang/ClassLoader\")");           */
 310         class_java_lang_ClassLoader =
 311                 class_new(utf_new_char("java/lang/ClassLoader"));
 312 /*      log_text("native_loadclasses: class_new(\"java/security/PrivilegedActionException\")");         */
 313         class_java_security_PrivilegedActionException =
 314                 class_new(utf_new_char("java/security/PrivilegedActionException"));
 315
 316         loader_load_sysclass(&class_java_net_UnknownHostException,
 317                                                  utf_new_char("java/net/UnknownHostException"));
 318         loader_load_sysclass(&class_java_net_SocketException,
 319                                                  utf_new_char("java/net/SocketException"));
 320
 321         class_java_lang_IllegalArgumentException =
 322                 class_new(utf_new_char("java/lang/IllegalArgumentException"));
 323         class_java_lang_ArrayIndexOutOfBoundsException =
 324                 class_new(utf_new_char("java/lang/ArrayIndexOutOfBoundsException"));
 325         class_java_lang_NoSuchFieldException =
 326                 class_new(utf_new_char("java/lang/NoSuchFieldException"));
 327         class_java_lang_NoSuchMethodException =
 328                 class_new(utf_new_char("java/lang/NoSuchMethodException"));
 329
 330         /* load classes for wrapping primitive types */
 331         class_java_lang_Double    = class_new(utf_new_char("java/lang/Double"));
 332         class_init(class_java_lang_Double);
 333
 334         class_java_lang_Float     = class_new(utf_new_char("java/lang/Float"));
 335         class_java_lang_Character =     class_new(utf_new_char("java/lang/Character"));
 336         class_java_lang_Integer   = class_new(utf_new_char("java/lang/Integer"));
 337         class_java_lang_Long      = class_new(utf_new_char("java/lang/Long"));
 338         class_java_lang_Byte      = class_new(utf_new_char("java/lang/Byte"));
 339         class_java_lang_Short     = class_new(utf_new_char("java/lang/Short"));
 340         class_java_lang_Boolean   = class_new(utf_new_char("java/lang/Boolean"));
 341         class_java_lang_Void      = class_new(utf_new_char("java/lang/Void"));
 342
 343         classesLoaded = 1;
 344         log_text("native_loadclasses finished");
 345 }
 346
 347
 348 /*************** adds a class to the vector of loaded classes ****************/
 349
 350 void systemclassloader_addclass(classinfo *c)
 351 {
 352         methodinfo *m;
 353
 354         /* find method addClass of java.lang.ClassLoader */
 355         m = class_resolvemethod(
 356                                                         class_java_lang_ClassLoader,
 357                                                         utf_new_char("addClass"),
 358                                                         utf_new_char("(Ljava/lang/Class;)")
 359                                                         );
 360
 361         if (!m) panic("warning: cannot initialize classloader");
 362
 363         /* prepare class to be passed as argument */
 364         use_class_as_object (c);
 365
 366         /* call 'addClass' */
 367         asm_calljavafunction(m,
 368                                            (java_objectheader*) SystemClassLoader,
 369                                            (java_objectheader*) c,
 370                                            NULL,
 371                                            NULL
 372                                            );
 373 }
 374
 375
 376 /*************** adds a library to the vector of loaded libraries *************/
 377
 378 void systemclassloader_addlibrary(java_objectheader *o)
 379 {
 380         log_text("systemclassloader_addlibrary");
 381 }
 382
 383
 384 /*****************************************************************************
 385
 386         create systemclassloader object and initialize instance fields
 387
 388 ******************************************************************************/
 389
 390 void init_systemclassloader()
 391 {
 392         if (!SystemClassLoader) {
 393                 native_loadclasses();
 394                 log_text("Initializing new system class loader");
 395                 /* create object and call initializer */
 396                 SystemClassLoader = (java_lang_ClassLoader*) native_new_and_init(class_java_lang_ClassLoader);
 397
 398                 /* systemclassloader has no parent */
 399                 SystemClassLoader->parent      = NULL;
 400                 SystemClassLoader->initialized = true;
 401         }
 402         log_text("leaving system class loader");
 403 }
 404
 405
 406 /********************* add loaded library name  *******************************/
 407
 408 void systemclassloader_addlibname(java_objectheader *o)
 409 {
 410         methodinfo *m;
 411         jfieldID id;
 412
 413         m = class_resolvemethod(loader_load_sysclass(NULL, utf_new_char ("java/util/Vector")),
 414                                                         utf_new_char("addElement"),
 415                                                         utf_new_char("(Ljava/lang/Object;)V"));
 416
 417         if (!m) panic("cannot initialize classloader");
 418
 419         id = envTable.GetStaticFieldID(&env,
 420                                                                    class_java_lang_ClassLoader,
 421                                                                    "loadedLibraryNames",
 422                                                                    "Ljava/util/Vector;");
 423
 424         if (!id) panic("can not access ClassLoader");
 425
 426         asm_calljavafunction(m,
 427                                                  envTable.GetStaticObjectField(&env, class_java_lang_ClassLoader, id),
 428                                                  o,
 429                                                  NULL,
 430                                                  NULL);
 431 }
 432
 433
 434 /********************* function: native_setclasspath **************************/
 435
 436 void native_setclasspath(char *path)
 437 {
 438         /* set searchpath for classfiles */
 439         classpath = path;
 440 }
 441
 442
 443 /*********************** Function: native_findfunction *************************
 444
 445         Looks up a method (must have the same class name, method name, descriptor
 446         and 'static'ness) and returns a function pointer to it.
 447         Returns: function pointer or NULL (if there is no such method)
 448
 449         Remark: For faster operation, the names/descriptors are converted from C
 450                 strings to Unicode the first time this function is called.
 451
 452 *******************************************************************************/
 453
 454 functionptr native_findfunction(utf *cname, utf *mname,
 455                                                                 utf *desc, bool isstatic)
 456 {
 457         int i;
 458         /* entry of table for fast string comparison */
 459         struct nativecompref *n;
 460         /* for warning message if no function is found */
 461         char *buffer;
 462         int buffer_len;
 463
 464         isstatic = isstatic ? true : false;
 465
 466         if (!nativecompdone) {
 467                 for (i = 0; i < NATIVETABLESIZE; i++) {
 468                         nativecomptable[i].classname  =
 469                                 utf_new_char(nativetable[i].classname);
 470                         nativecomptable[i].methodname =
 471                                 utf_new_char(nativetable[i].methodname);
 472                         nativecomptable[i].descriptor =
 473                                 utf_new_char(nativetable[i].descriptor);
 474                         nativecomptable[i].isstatic   =
 475                                 nativetable[i].isstatic;
 476                         nativecomptable[i].func       =
 477                                 nativetable[i].func;
 478                 }
 479                 nativecompdone = true;
 480         }
 481
 482 #ifdef JOWENN_DEBUG
 483         buffer_len =
 484                 utf_strlen(cname) + utf_strlen(mname) + utf_strlen(desc) + 64;
 485
 486         buffer = MNEW(char, buffer_len);
 487
 488         strcpy(buffer, "searching matching function in native table:");
 489         utf_sprint(buffer+strlen(buffer), mname);
 490         strcpy(buffer+strlen(buffer), ": ");
 491         utf_sprint(buffer+strlen(buffer), desc);
 492         strcpy(buffer+strlen(buffer), " for class ");
 493         utf_sprint(buffer+strlen(buffer), cname);
 494
 495         log_text(buffer);
 496
 497         MFREE(buffer, char, buffer_len);
 498 #endif
 499
 500         for (i = 0; i < NATIVETABLESIZE; i++) {
 501                 n = &(nativecomptable[i]);
 502
 503                 if (cname == n->classname && mname == n->methodname &&
 504                     desc == n->descriptor && isstatic == n->isstatic)
 505                         return n->func;
 506 #ifdef JOWENN_DEBUG
 507                         else {
 508                                 if (cname == n->classname && mname == n->methodname )  log_text("static and descriptor mismatch");
 509
 510                                 else {
 511                                         buffer_len =
 512                                           utf_strlen(n->classname) + utf_strlen(n->methodname) + utf_strlen(n->descriptor) + 64;
 513
 514                                         buffer = MNEW(char, buffer_len);
 515
 516                                         strcpy(buffer, "comparing with:");
 517                                         utf_sprint(buffer+strlen(buffer), n->methodname);
 518                                         strcpy (buffer+strlen(buffer), ": ");
 519                                         utf_sprint(buffer+strlen(buffer), n->descriptor);
 520                                         strcpy(buffer+strlen(buffer), " for class ");
 521                                         utf_sprint(buffer+strlen(buffer), n->classname);
 522
 523                                         log_text(buffer);
 524
 525                                         MFREE(buffer, char, buffer_len);
 526                                 }
 527                         }
 528 #endif
 529         }
 530
 531
 532         /* no function was found, display warning */
 533
 534         buffer_len =
 535                 utf_strlen(cname) + utf_strlen(mname) + utf_strlen(desc) + 64;
 536
 537         buffer = MNEW(char, buffer_len);
 538
 539         strcpy(buffer, "warning: native function ");
 540         utf_sprint(buffer + strlen(buffer), mname);
 541         strcpy(buffer + strlen(buffer), ": ");
 542         utf_sprint(buffer + strlen(buffer), desc);
 543         strcpy(buffer + strlen(buffer), " not found in class ");
 544         utf_sprint(buffer + strlen(buffer), cname);
 545
 546         log_text(buffer);
 547
 548         MFREE(buffer, char, buffer_len);
 549
 550         exit(1);
 551
 552         /* keep compiler happy */
 553         return NULL;
 554 }
 555
 556
 557 /********************** function: javastring_new *******************************
 558
 559         creates a new object of type java/lang/String with the text of
 560         the specified utf8-string
 561
 562         return: pointer to the string or NULL if memory is exhausted.
 563
 564 *******************************************************************************/
 565
 566 /*  java_objectheader *javastring_new(utf *u) */
 567 java_lang_String *javastring_new(utf *u)
 568 {
 569         char *utf_ptr = u->text;        /* current utf character in utf string    */
 570         int utflength = utf_strlen(u);  /* length of utf-string if uncompressed   */
 571         java_lang_String *s;                /* result-string                          */
 572         java_chararray *a;
 573         s4 i;
 574
 575 /*      log_text("javastring_new");*/
 576
 577         s = (java_lang_String*) builtin_new(class_java_lang_String);
 578         a = builtin_newarray_char(utflength);
 579
 580         /* javastring or character-array could not be created */
 581         if ((!a) || (!s))
 582                 return NULL;
 583
 584         /* decompress utf-string */
 585         for (i = 0; i < utflength; i++)
 586                 a->data[i] = utf_nextu2(&utf_ptr);
 587
 588         /* set fields of the javastring-object */
 589         s->value  = a;
 590         s->offset = 0;
 591         s->count  = utflength;
 592
 593 /*      return (java_objectheader*) s; */
 594         return s;
 595 }
 596
 597
 598 /********************** function: javastring_new_char **************************
 599
 600         creates a new java/lang/String object which contains the convertet
 601         C-string passed via text.
 602
 603         return: the object pointer or NULL if memory is exhausted.
 604
 605 *******************************************************************************/
 606
 607 /*  java_objectheader *javastring_new_char (char *text) */
 608 java_lang_String *javastring_new_char (char *text)
 609 {
 610         s4 i;
 611         s4 len = strlen(text); /* length of the string */
 612         java_lang_String *s;   /* result-string */
 613         java_chararray *a;
 614
 615         /*log_text("javastring_new_char");*/
 616         s = (java_lang_String*) builtin_new(class_java_lang_String);
 617         a = builtin_newarray_char(len);
 618
 619         /* javastring or character-array could not be created */
 620         if ((!a) || (!s))
 621                 return NULL;
 622
 623         /* copy text */
 624         for (i = 0; i < len; i++)
 625                 a->data[i] = text[i];
 626
 627         /* set fields of the javastring-object */
 628         s->value  = a;
 629         s->offset = 0;
 630         s->count  = len;
 631
 632 /*      return (java_objectheader*) s; */
 633         return s;
 634 }
 635
 636
 637 /************************* function javastring_tochar **************************
 638
 639         converts a Java string into a C string.
 640
 641         return: pointer to C string
 642
 643         Caution: every call of this function overwrites the previous string !!!
 644
 645 *******************************************************************************/
 646
 647 static char stringbuffer[MAXSTRINGSIZE];
 648
 649 char *javastring_tochar (java_objectheader *so)
 650 {
 651         java_lang_String *s = (java_lang_String*) so;
 652         java_chararray *a;
 653         s4 i;
 654
 655         log_text("javastring_tochar");
 656
 657         if (!s)
 658                 return "";
 659         a = s->value;
 660         if (!a)
 661                 return "";
 662         if (s->count > MAXSTRINGSIZE)
 663                 return "";
 664         for (i = 0; i < s->count; i++)
 665                 stringbuffer[i] = a->data[s->offset+i];
 666         stringbuffer[i] = '\0';
 667         return stringbuffer;
 668 }
 669
 670
 671 /****************** function class_findfield_approx ****************************
 672
 673         searches in 'classinfo'-structure for a field with the
 674         specified name
 675
 676 *******************************************************************************/
 677
 678 fieldinfo *class_findfield_approx(classinfo *c, utf *name)
 679 {
 680         s4 i;
 681         for (i = 0; i < c->fieldscount; i++) {
 682                 /* compare field names */
 683                 if ((c->fields[i].name == name))
 684                         return &(c->fields[i]);
 685         }
 686
 687         /* field was not found, raise exception */
 688         exceptionptr = native_new_and_init(class_java_lang_NoSuchFieldException);
 689
 690         return NULL;
 691 }
 692
 693 s4 class_findfield_index_approx (classinfo *c, utf *name)
 694 {
 695         s4 i;
 696         for (i = 0; i < c->fieldscount; i++) {
 697                 /* compare field names */
 698                 if ((c->fields[i].name == name))
 699                         return i;
 700                 }
 701
 702         /* field was not found, raise exception */
 703         exceptionptr = native_new_and_init(class_java_lang_NoSuchFieldException);
 704         return -1;
 705 }
 706
 707
 708 /********************** function: native_new_and_init *************************
 709
 710         Creates a new object on the heap and calls the initializer.
 711         Returns the object pointer or NULL if memory is exhausted.
 712
 713 *******************************************************************************/
 714
 715 java_objectheader *native_new_and_init(classinfo *c)
 716 {
 717         methodinfo *m;
 718         java_objectheader *o;
 719
 720         /* if c==NULL it is probebly because loader_load failed */
 721         if (!c) return exceptionptr;
 722
 723         o = builtin_new(c);          /* create object          */
 724
 725         /*
 726         printf("native_new_and_init ");
 727         utf_display(c->name);
 728         printf("\n");
 729         */
 730         if (!o) return NULL;
 731         /* printf("o!=NULL\n"); */
 732         /* find initializer */
 733
 734         m = class_findmethod(c, utf_new_char("<init>"), utf_new_char("()V"));
 735
 736         if (!m) {                                       /* initializer not found  */
 737                 if (verbose) {
 738                         char logtext[MAXLOGTEXT];
 739                         sprintf(logtext, "Warning: class has no instance-initializer: ");
 740                         utf_sprint(logtext + strlen(logtext), c->name);
 741                         log_text(logtext);
 742                 }
 743                 return o;
 744         }
 745
 746         /* call initializer */
 747
 748         asm_calljavafunction(m, o, NULL, NULL, NULL);
 749
 750         return o;
 751 }
 752
 753
 754 java_objectheader *native_new_and_init_string(classinfo *c, java_lang_String *s)
 755 {
 756         methodinfo *m;
 757         java_objectheader *o;
 758
 759         /* if c==NULL it is probebly because loader_load failed */
 760         if (!c) return exceptionptr;
 761
 762         o = builtin_new(c);          /* create object          */
 763
 764         if (!o) return NULL;
 765
 766         /* find initializer */
 767
 768         m = class_findmethod(c,
 769                                                  utf_new_char("<init>"),
 770                                                  utf_new_char("(Ljava/lang/String;)V"));
 771
 772         if (!m) {                                       /* initializer not found  */
 773                 if (verbose) {
 774                         char logtext[MAXLOGTEXT];
 775                         sprintf(logtext, "Warning: class has no instance-initializer: ");
 776                         utf_sprint(logtext + strlen(logtext), c->name);
 777                         log_text(logtext);
 778                 }
 779                 return o;
 780         }
 781
 782         /* call initializer */
 783
 784         asm_calljavafunction(m, o, s, NULL, NULL);
 785
 786         return o;
 787 }
 788
 789
 790 /******************** function: stringtable_update ****************************
 791
 792         traverses the javastring hashtable and sets the vftbl-entries of
 793         javastrings which were temporarily set to NULL, because
 794         java.lang.Object was not yet loaded
 795
 796 *******************************************************************************/
 797
 798 void stringtable_update ()
 799 {
 800         java_lang_String *js;
 801         java_chararray *a;
 802         literalstring *s;       /* hashtable entry */
 803         int i;
 804
 805         for (i = 0; i < string_hash.size; i++) {
 806                 s = string_hash.ptr[i];
 807                 if (s) {
 808                         while (s) {
 809
 810                                 js = (java_lang_String *) s->string;
 811
 812                                 if (!js || !js->value)
 813                                         /* error in hashtable found */
 814                                         panic("invalid literalstring in hashtable");
 815
 816                                 a = js->value;
 817
 818                                 if (!js->header.vftbl)
 819                                         /* vftbl of javastring is NULL */
 820                                         js->header.vftbl = class_java_lang_String -> vftbl;
 821
 822                                 if (!a->header.objheader.vftbl)
 823                                         /* vftbl of character-array is NULL */
 824                                         a->header.objheader.vftbl = primitivetype_table[ARRAYTYPE_CHAR].arrayvftbl;
 825
 826                                 /* follow link in external hash chain */
 827                                 s = s->hashlink;
 828                         }
 829                 }
 830         }
 831 }
 832
 833
 834 /************************* function: u2_utflength ***************************
 835
 836         returns the utf length in bytes of a u2 array
 837
 838 *****************************************************************************/
 839
 840 u4 u2_utflength(u2 *text, u4 u2_length)
 841 {
 842         u4 result_len =  0;  /* utf length in bytes  */
 843         u2 ch;               /* current unicode character */
 844         u4 len;
 845
 846         for (len = 0; len < u2_length; len++) {
 847                 /* next unicode character */
 848                 ch = *text++;
 849
 850                 /* determine bytes required to store unicode character as utf */
 851                 if (ch && (ch < 0x80))
 852                         result_len++;
 853                 else if (ch < 0x800)
 854                         result_len += 2;
 855                 else
 856                         result_len += 3;
 857         }
 858
 859     return result_len;
 860 }
 861
 862
 863 /********************* function: utf_new_u2 ***********************************
 864
 865         make utf symbol from u2 array,
 866         if isclassname is true '.' is replaced by '/'
 867
 868 *******************************************************************************/
 869
 870 utf *utf_new_u2(u2 *unicode_pos, u4 unicode_length, bool isclassname)
 871 {
 872         char *buffer; /* memory buffer for  unicode characters */
 873         char *pos;    /* pointer to current position in buffer */
 874         u4 left;      /* unicode characters left */
 875         u4 buflength; /* utf length in bytes of the u2 array  */
 876         utf *result;  /* resulting utf-string */
 877         int i;
 878
 879         /* determine utf length in bytes and allocate memory */
 880         /* printf("utf_new_u2: unicode_length=%d\n",unicode_length);            */
 881         buflength = u2_utflength(unicode_pos, unicode_length);
 882         buffer    = MNEW(char, buflength);
 883
 884         /* memory allocation failed */
 885         if (!buffer) {
 886                 printf("length: %d\n",buflength);
 887                 log_text("utf_new_u2:buffer==NULL");
 888         }
 889
 890         left = buflength;
 891         pos  = buffer;
 892
 893         for (i = 0; i++ < unicode_length; unicode_pos++) {
 894                 /* next unicode character */
 895                 u2 c = *unicode_pos;
 896
 897                 if ((c != 0) && (c < 0x80)) {
 898                         /* 1 character */
 899                         left--;
 900                 if ((int) left < 0) break;
 901                         /* convert classname */
 902                         if (isclassname && c == '.')
 903                                 *pos++ = '/';
 904                         else
 905                                 *pos++ = (char) c;
 906
 907                 } else if (c < 0x800) {
 908                         /* 2 characters */
 909                 unsigned char high = c >> 6;
 910                 unsigned char low  = c & 0x3F;
 911                         left = left - 2;
 912                 if ((int) left < 0) break;
 913                 *pos++ = high | 0xC0;
 914                 *pos++ = low  | 0x80;
 915
 916                 } else {
 917                 /* 3 characters */
 918                 char low  = c & 0x3f;
 919                 char mid  = (c >> 6) & 0x3F;
 920                 char high = c >> 12;
 921                         left = left - 3;
 922                 if ((int) left < 0) break;
 923                 *pos++ = high | 0xE0;
 924                 *pos++ = mid  | 0x80;
 925                 *pos++ = low  | 0x80;
 926                 }
 927         }
 928
 929         /* insert utf-string into symbol-table */
 930         result = utf_new(buffer,buflength);
 931
 932         MFREE(buffer, char, buflength);
 933
 934         return result;
 935 }
 936
 937
 938 /********************* function: javastring_toutf *****************************
 939
 940         make utf symbol from javastring
 941
 942 *******************************************************************************/
 943
 944 utf *javastring_toutf(java_lang_String *string, bool isclassname)
 945 {
 946         java_lang_String *str = (java_lang_String *) string;
 947 /*      printf("javastring_toutf offset: %d, len %d\n",str->offset, str->count);
 948         fflush(stdout);*/
 949         return utf_new_u2(str->value->data + str->offset, str->count, isclassname);
 950 }
 951
 952
 953 /********************* function: literalstring_u2 *****************************
 954
 955     searches for the javastring with the specified u2-array in
 956     the string hashtable, if there is no such string a new one is
 957     created
 958
 959     if copymode is true a copy of the u2-array is made
 960
 961 *******************************************************************************/
 962
 963 java_objectheader *literalstring_u2 (java_chararray *a, u4 length, bool copymode )
 964 {
 965     literalstring *s;                /* hashtable element */
 966     java_lang_String *js;            /* u2-array wrapped in javastring */
 967     java_chararray *stringdata;      /* copy of u2-array */
 968     u4 key;
 969     u4 slot;
 970     u2 i;
 971
 972 #if JOWENN_DEBUG1
 973     printf("literalstring_u2: length: %d\n",length);
 974     log_text("literalstring_u2");
 975 #endif
 976
 977     /* find location in hashtable */
 978     key  = unicode_hashkey (a->data, length);
 979     slot = key & (string_hash.size-1);
 980     s    = string_hash.ptr[slot];
 981
 982     while (s) {
 983
 984       js = (java_lang_String *) s->string;
 985
 986       if (js->count == length) {
 987         /* compare text */
 988         for (i=0; i<length; i++)
 989           if (js->value->data[i] != a->data[i]) goto nomatch;
 990
 991         /* string already in hashtable, free memory */
 992         if (!copymode)
 993                 lit_mem_free(a, sizeof(java_chararray) + sizeof(u2) * (length - 1) + 10);
 994
 995 #ifdef JOWENN_DEBUG1
 996         log_text("literalstring_u2: foundentry");
 997         utf_display(javastring_toutf(js,0));
 998 #endif
 999         return (java_objectheader *) js;
1000       }
1001
1002       nomatch:
1003       /* follow link in external hash chain */
1004       s = s->hashlink;
1005     }
1006
1007     if (copymode) {
1008       /* create copy of u2-array for new javastring */
1009       u4 arraysize = sizeof(java_chararray) + sizeof(u2)*(length-1)+10;
1010       stringdata = lit_mem_alloc ( arraysize );
1011       memcpy(stringdata, a, arraysize );
1012     }
1013     else
1014       stringdata = a;
1015
1016     /* location in hashtable found, complete arrayheader */
1017     stringdata -> header.objheader.vftbl = primitivetype_table[ARRAYTYPE_CHAR].arrayvftbl;
1018     stringdata -> header.size = length;
1019
1020     /* create new javastring */
1021     js = LNEW (java_lang_String);
1022     js -> header.vftbl = class_java_lang_String -> vftbl;
1023     js -> value  = stringdata;
1024     js -> offset = 0;
1025     js -> count  = length;
1026
1027     /* create new literalstring */
1028     s = NEW (literalstring);
1029     s->hashlink = string_hash.ptr[slot];
1030     s->string   = (java_objectheader *) js;
1031     string_hash.ptr[slot] = s;
1032
1033     /* update numbe of hashtable entries */
1034     string_hash.entries++;
1035
1036     /* reorganization of hashtable */
1037     if ( string_hash.entries > (string_hash.size*2)) {
1038
1039       /* reorganization of hashtable, average length of
1040          the external chains is approx. 2                */
1041
1042       u4 i;
1043       literalstring *s;
1044       hashtable newhash; /* the new hashtable */
1045
1046       /* create new hashtable, double the size */
1047       init_hashtable(&newhash, string_hash.size*2);
1048       newhash.entries=string_hash.entries;
1049
1050       /* transfer elements to new hashtable */
1051       for (i=0; i<string_hash.size; i++) {
1052         s = string_hash.ptr[i];
1053         while (s) {
1054           literalstring *nexts = s -> hashlink;
1055           js   = (java_lang_String*) s->string;
1056           slot = (unicode_hashkey(js->value->data,js->count)) & (newhash.size-1);
1057
1058           s->hashlink = newhash.ptr[slot];
1059           newhash.ptr[slot] = s;
1060
1061           /* follow link in external hash chain */
1062           s = nexts;
1063         }
1064       }
1065
1066       /* dispose old table */
1067       MFREE (string_hash.ptr, void*, string_hash.size);
1068       string_hash = newhash;
1069     }
1070 #ifdef JOWENN_DEBUG1
1071         log_text("literalstring_u2: newly created");
1072 /*      utf_display(javastring_toutf(js,0));*/
1073 #endif
1074
1075     return (java_objectheader *) js;
1076 }
1077
1078 /******************** Function: literalstring_new *****************************
1079
1080     creates a new javastring with the text of the utf-symbol
1081     and inserts it into the string hashtable
1082
1083 *******************************************************************************/
1084
1085 java_objectheader *literalstring_new (utf *u)
1086 {
1087     char *utf_ptr = u->text;         /* pointer to current unicode character in utf string */
1088     u4 utflength  = utf_strlen(u);   /* length of utf-string if uncompressed */
1089     java_chararray *a;               /* u2-array constructed from utf string */
1090     u4 i;
1091 /*    log_text("literalstring_new"); */
1092 /*    utf_display(u);*/
1093     /*if (utflength==0) while (1) sleep(60);*/
1094 /*    log_text("------------------");    */
1095     /* allocate memory */
1096     a = lit_mem_alloc (sizeof(java_chararray) + sizeof(u2)*(utflength-1)+10 );
1097     /* convert utf-string to u2-array */
1098     for (i=0; i<utflength; i++) a->data[i] = utf_nextu2(&utf_ptr);
1099
1100     return literalstring_u2(a, utflength, false);
1101 }
1102
1103
1104 /********************** function: literalstring_free **************************
1105
1106         removes a javastring from memory
1107
1108 ******************************************************************************/
1109
1110 void literalstring_free (java_objectheader* sobj)
1111 {
1112         java_lang_String *s = (java_lang_String*) sobj;
1113         java_chararray *a = s->value;
1114
1115         log_text("literalstring_free called");
1116
1117         /* dispose memory of java.lang.String object */
1118         LFREE (s, java_lang_String);
1119         /* dispose memory of java-characterarray */
1120         LFREE (a, sizeof(java_chararray) + sizeof(u2)*(a->header.size-1)); /* +10 ?? */
1121 }
1122
1123
1124
1125
1126 void copy_vftbl(vftbl **dest, vftbl *src)
1127 {
1128     *dest = src;
1129 #if 0
1130     /* XXX this kind of copying does not work (in the general
1131      * case). The interface tables would have to be copied, too. I
1132      * don't see why we should make a copy anyway. -Edwin
1133      */
1134         *dest = mem_alloc(sizeof(vftbl) + sizeof(methodptr)*(src->vftbllength-1));
1135         memcpy(*dest, src, sizeof(vftbl) - sizeof(methodptr));
1136         memcpy(&(*dest)->table, &src->table, src->vftbllength * sizeof(methodptr));
1137 #endif
1138 }
1139
1140
1141 /******************************************************************************************
1142
1143         creates method signature (excluding return type) from array of
1144         class-objects representing the parameters of the method
1145
1146 *******************************************************************************************/
1147
1148
1149 utf *create_methodsig(java_objectarray* types, char *retType)
1150 {
1151     char *buffer;       /* buffer for building the desciptor */
1152     char *pos;          /* current position in buffer */
1153     utf *result;        /* the method signature */
1154     u4 buffer_size = 3; /* minimal size=3: room for parenthesis and returntype */
1155     u4 i, j;
1156
1157     if (!types) return NULL;
1158
1159     /* determine required buffer-size */
1160     for (i = 0; i < types->header.size; i++) {
1161                 classinfo *c = (classinfo *) types->data[i];
1162                 buffer_size  = buffer_size + c->name->blength + 2;
1163     }
1164
1165     if (retType) buffer_size += strlen(retType);
1166
1167     /* allocate buffer */
1168     buffer = MNEW(u1, buffer_size);
1169     pos    = buffer;
1170
1171     /* method-desciptor starts with parenthesis */
1172     *pos++ = '(';
1173
1174     for (i = 0; i < types->header.size; i++) {
1175                 char ch;
1176
1177                 /* current argument */
1178             classinfo *c = (classinfo *) types->data[i];
1179
1180             /* current position in utf-text */
1181             char *utf_ptr = c->name->text;
1182
1183             /* determine type of argument */
1184             if ((ch = utf_nextu2(&utf_ptr)) == '[') {
1185                 /* arrayclass */
1186                 for (utf_ptr--; utf_ptr < utf_end(c->name); utf_ptr++) {
1187                                 *pos++ = *utf_ptr; /* copy text */
1188                         }
1189
1190             } else {
1191                         /* check for primitive types */
1192                         for (j = 0; j < PRIMITIVETYPE_COUNT; j++) {
1193                                 char *utf_pos   = utf_ptr - 1;
1194                                 char *primitive = primitivetype_table[j].wrapname;
1195
1196                                 /* compare text */
1197                                 while (utf_pos < utf_end(c->name)) {
1198                                         if (*utf_pos++ != *primitive++) goto nomatch;
1199                                 }
1200
1201                                 /* primitive type found */
1202                                 *pos++ = primitivetype_table[j].typesig;
1203                                 goto next_type;
1204
1205                         nomatch:
1206                         }
1207
1208                         /* no primitive type and no arrayclass, so must be object */
1209                         *pos++ = 'L';
1210
1211                         /* copy text */
1212                         for (utf_ptr--; utf_ptr < utf_end(c->name); utf_ptr++) {
1213                                 *pos++ = *utf_ptr;
1214                         }
1215
1216                         *pos++ = ';';
1217
1218                 next_type:
1219                 }
1220     }
1221
1222     *pos++ = ')';
1223
1224     if (retType) {
1225                 for (i = 0; i < strlen(retType); i++) {
1226                         *pos++ = retType[i];
1227                 }
1228     }
1229
1230     /* create utf-string */
1231     result = utf_new(buffer, (pos - buffer));
1232     MFREE(buffer, u1, buffer_size);
1233
1234     return result;
1235 }
1236
1237
1238 /******************************************************************************************
1239
1240         retrieve the next argument or returntype from a descriptor
1241         and return the corresponding class
1242
1243 *******************************************************************************************/
1244
1245 classinfo *get_type(char **utf_ptr,char *desc_end, bool skip)
1246 {
1247     classinfo *c = class_from_descriptor(*utf_ptr,desc_end,utf_ptr,
1248                                          (skip) ? CLASSLOAD_SKIP : CLASSLOAD_LOAD);
1249     if (!c)
1250         /* unknown type */
1251         panic("illegal descriptor");
1252
1253     if (skip) return NULL;
1254
1255     use_class_as_object(c);
1256     return c;
1257 }
1258
1259
1260 /******************************************************************************************
1261
1262         use the descriptor of a method to generate a java/lang/Class array
1263         which contains the classes of the parametertypes of the method
1264
1265 *******************************************************************************************/
1266
1267 java_objectarray* get_parametertypes(methodinfo *m)
1268 {
1269     utf  *descr    =  m->descriptor;    /* method-descriptor */
1270     char *utf_ptr  =  descr->text;      /* current position in utf-text */
1271     char *desc_end =  utf_end(descr);   /* points behind utf string     */
1272     java_objectarray* result;
1273     int parametercount = 0;
1274     int i;
1275
1276     /* skip '(' */
1277     utf_nextu2(&utf_ptr);
1278
1279     /* determine number of parameters */
1280     while ( *utf_ptr != ')' ) {
1281         get_type(&utf_ptr,desc_end,true);
1282         parametercount++;
1283     }
1284
1285     /* create class-array */
1286     result = builtin_anewarray(parametercount, class_java_lang_Class);
1287
1288     utf_ptr  =  descr->text;
1289     utf_nextu2(&utf_ptr);
1290
1291     /* get returntype classes */
1292     for (i = 0; i < parametercount; i++)
1293             result->data[i] = (java_objectheader *) get_type(&utf_ptr,desc_end, false);
1294
1295     return result;
1296 }
1297
1298
1299
1300
1301
1302 /******************************************************************************************
1303
1304         get the exceptions which can be thrown by a method
1305
1306 *******************************************************************************************/
1307
1308 java_objectarray* get_exceptiontypes(methodinfo *m)
1309 {
1310 }
1311
1312
1313
1314
1315
1316 /******************************************************************************************
1317
1318         get the returntype class of a method
1319
1320 *******************************************************************************************/
1321
1322 classinfo *get_returntype(methodinfo *m)
1323 {
1324         char *utf_ptr;   /* current position in utf-text */
1325         char *desc_end;  /* points behind utf string     */
1326         utf *desc = m->descriptor; /* method-descriptor  */
1327
1328         utf_ptr  = desc->text;
1329         desc_end = utf_end(desc);
1330
1331         /* ignore parametertypes */
1332         while ((utf_ptr<desc_end) && utf_nextu2(&utf_ptr)!=')')
1333                 /* skip */ ;
1334
1335         return get_type(&utf_ptr,desc_end, false);
1336 }
1337
1338
1339 /*****************************************************************************/
1340 /*****************************************************************************/
1341
1342
1343 /*--------------------------------------------------------*/
1344 void printNativeCall(nativeCall nc) {
1345   int i,j;
1346
1347   printf("\n%s's Native Methods call:\n",nc.classname); fflush(stdout);
1348   for (i=0; i<nc.methCnt; i++) {
1349       printf("\tMethod=%s %s\n",nc.methods[i].methodname, nc.methods[i].descriptor);fflush(stdout);
1350
1351     for (j=0; j<nc.callCnt[i]; j++) {
1352         printf("\t\t<%i,%i>aCalled = %s %s %s\n",i,j,
1353         nc.methods[i].methodCalls[j].classname,
1354         nc.methods[i].methodCalls[j].methodname,
1355         nc.methods[i].methodCalls[j].descriptor);fflush(stdout);
1356       }
1357     }
1358   printf("-+++++--------------------\n");fflush(stdout);
1359 }
1360
1361 /*--------------------------------------------------------*/
1362 void printCompNativeCall(nativeCompCall nc) {
1363   int i,j;
1364   printf("printCompNativeCall BEGIN\n");fflush(stdout);
1365   printf("\n%s's Native Comp Methods call:\n",nc.classname->text);fflush(stdout);
1366   utf_display(nc.classname); fflush(stdout);
1367
1368   for (i=0; i<nc.methCnt; i++) {
1369     printf("\tMethod=%s %s\n",nc.methods[i].methodname->text,nc.methods[i].descriptor->text);fflush(stdout);
1370     utf_display(nc.methods[i].methodname); fflush(stdout);
1371     utf_display(nc.methods[i].descriptor);fflush(stdout);
1372     printf("\n");fflush(stdout);
1373
1374     for (j=0; j<nc.callCnt[i]; j++) {
1375       printf("\t\t<%i,%i>bCalled = ",i,j);fflush(stdout);
1376         utf_display(nc.methods[i].methodCalls[j].classname);fflush(stdout);
1377         utf_display(nc.methods[i].methodCalls[j].methodname); fflush(stdout);
1378         utf_display(nc.methods[i].methodCalls[j].descriptor);fflush(stdout);
1379         printf("\n");fflush(stdout);
1380       }
1381     }
1382 printf("---------------------\n");fflush(stdout);
1383 }
1384
1385
1386 /*--------------------------------------------------------*/
1387 classMeth findNativeMethodCalls(utf *c, utf *m, utf *d )
1388 {
1389     int i = 0;
1390     int j = 0;
1391     int cnt = 0;
1392     classMeth mc;
1393     mc.i_class = i;
1394     mc.j_method = j;
1395     mc.methCnt = cnt;
1396
1397     return mc;
1398 }
1399
1400 /*--------------------------------------------------------*/
1401 nativeCall* findNativeClassCalls(char *aclassname ) {
1402 int i;
1403
1404 for (i=0;i<NATIVECALLSSIZE; i++) {
1405    /* convert table to utf later to speed up search */
1406    if (strcmp(nativeCalls[i].classname, aclassname) == 0)
1407         return &nativeCalls[i];
1408    }
1409
1410 return NULL;
1411 }
1412 /*--------------------------------------------------------*/
1413 /*--------------------------------------------------------*/
1414 void utfNativeCall(nativeCall nc, nativeCompCall *ncc) {
1415   int i,j;
1416
1417
1418   ncc->classname = utf_new_char(nc.classname);
1419   ncc->methCnt = nc.methCnt;
1420
1421   for (i=0; i<nc.methCnt; i++) {
1422     ncc->methods[i].methodname = utf_new_char(nc.methods[i].methodname);
1423     ncc->methods[i].descriptor = utf_new_char(nc.methods[i].descriptor);
1424     ncc->callCnt[i] = nc.callCnt[i];
1425
1426     for (j=0; j<nc.callCnt[i]; j++) {
1427
1428         ncc->methods[i].methodCalls[j].classname  = utf_new_char(nc.methods[i].methodCalls[j].classname);
1429
1430         if (strcmp("", nc.methods[i].methodCalls[j].methodname) != 0) {
1431           ncc->methods[i].methodCalls[j].methodname = utf_new_char(nc.methods[i].methodCalls[j].methodname);
1432           ncc->methods[i].methodCalls[j].descriptor = utf_new_char(nc.methods[i].methodCalls[j].descriptor);
1433           }
1434         else {
1435           ncc->methods[i].methodCalls[j].methodname = NULL;
1436           ncc->methods[i].methodCalls[j].descriptor = NULL;
1437           }
1438       }
1439     }
1440 }
1441
1442
1443
1444 /*--------------------------------------------------------*/
1445
1446 bool natcall2utf(bool natcallcompdone) {
1447 int i;
1448
1449 if (natcallcompdone)
1450         return true;
1451
1452 for (i=0;i<NATIVECALLSSIZE; i++) {
1453    utfNativeCall  (nativeCalls[i], &nativeCompCalls[i]);
1454    }
1455
1456 return true;
1457 }
1458 /*--------------------------------------------------------*/
1459
1460
1461 /*
1462  * These are local overrides for various environment variables in Emacs.
1463  * Please do not remove this and leave it at the end of the file, where
1464  * Emacs will automagically detect them.
1465  * ---------------------------------------------------------------------
1466  * Local variables:
1467  * mode: c
1468  * indent-tabs-mode: t
1469  * c-basic-offset: 4
1470  * tab-width: 4
1471  * End:
1472  */