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 1033 2004-04-26 16:18:56Z twisti $
  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 "main.h"
  51 #include "jni.h"
  52 #include "native.h"
  53 #include "nativetypes.hh"
  54 #include "builtin.h"
  55 #include "asmpart.h"
  56 #include "tables.h"
  57 #include "loader.h"
  58 #include "jni.h"
  59 #include "toolbox/loging.h"
  60 #include "toolbox/memory.h"
  61 #include "threads/thread.h"
  62 #include "threads/threadio.h"
  63 #include "threads/locks.h"
  64 #include "nat/java_lang_VMClass.h"
  65 #include "nat/java_lang_Throwable.h"
  66
  67 /* Include files for IO functions */
  68
  69 #include <fcntl.h>
  70 #include <dirent.h>
  71 #include <sys/types.h>
  72 #ifdef _OSF_SOURCE
  73 #include <sys/mode.h>
  74 #endif
  75 #include <sys/stat.h>
  76
  77 #include "threads/threadio.h"
  78
  79 /* searchpath for classfiles */
  80 char *classpath;
  81
  82 /* for java-string to char conversion */
  83 #define MAXSTRINGSIZE 1000
  84
  85 /******************** systemclasses required for native methods ***************/
  86
  87 classinfo *class_java_lang_Class;
  88 classinfo *class_java_lang_VMClass;
  89 classinfo *class_java_lang_System;
  90 classinfo *class_java_lang_ClassLoader;
  91 classinfo *class_gnu_java_lang_SystemClassLoader;
  92 classinfo *class_java_lang_SecurityManager;
  93 classinfo *class_java_lang_Double;
  94 classinfo *class_java_lang_Float;
  95 classinfo *class_java_lang_Long;
  96 classinfo *class_java_lang_Byte;
  97 classinfo *class_java_lang_Short;
  98 classinfo *class_java_lang_Boolean;
  99 classinfo *class_java_lang_Void;
 100 classinfo *class_java_lang_Character;
 101 classinfo *class_java_lang_Integer;
 102
 103 methodinfo *method_vmclass_init;
 104
 105
 106 /* specify some exception strings for code generation */
 107
 108 char *string_java_lang_ArithmeticException =
 109     "java/lang/ArithmeticException";
 110
 111 char *string_java_lang_ArithmeticException_message =
 112     "/ by zero";
 113
 114 char *string_java_lang_ArrayIndexOutOfBoundsException =
 115     "java/lang/ArrayIndexOutOfBoundsException";
 116
 117 char *string_java_lang_ArrayStoreException =
 118     "java/lang/ArrayStoreException";
 119
 120 char *string_java_lang_ClassCastException =
 121     "java/lang/ClassCastException";
 122
 123 char *string_java_lang_ClassNotFoundException =
 124         "java/lang/ClassNotFoundException";
 125
 126 char *string_java_lang_CloneNotSupportedException =
 127     "java/lang/CloneNotSupportedException";
 128
 129 char *string_java_lang_IllegalArgumentException =
 130     "java/lang/IllegalArgumentException";
 131
 132 char *string_java_lang_IllegalMonitorStateException =
 133     "java/lang/IllegalMonitorStateException";
 134
 135 char *string_java_lang_NegativeArraySizeException =
 136     "java/lang/NegativeArraySizeException";
 137
 138 char *string_java_lang_NoSuchFieldException =
 139         "java/lang/NoSuchFieldException";
 140
 141 char *string_java_lang_NoSuchMethodException =
 142         "java/lang/NoSuchMethodException";
 143
 144 char *string_java_lang_NullPointerException =
 145     "java/lang/NullPointerException";
 146
 147
 148 /* specify some error strings for code generation */
 149
 150 char *string_java_lang_ClassCircularityError =
 151     "java/lang/ClassCircularityError";
 152
 153 char *string_java_lang_ClassFormatError =
 154     "java/lang/ClassFormatError";
 155
 156 char *string_java_lang_LinkageError =
 157     "java/lang/LinkageError";
 158
 159 char *string_java_lang_NoClassDefFoundError =
 160     "java/lang/NoClassDefFoundError";
 161
 162 char *string_java_lang_NoSuchFieldError =
 163         "java/lang/NoSuchFieldError";
 164
 165 char *string_java_lang_NoSuchMethodError =
 166         "java/lang/NoSuchMethodError";
 167
 168 char *string_java_lang_OutOfMemoryError =
 169     "java/lang/OutOfMemoryError";
 170
 171
 172 /* the system classloader object */
 173 struct java_lang_ClassLoader *SystemClassLoader = NULL;
 174
 175 /* for raising exceptions from native methods */
 176 #if !defined(USE_THREADS) || !defined(NATIVE_THREADS)
 177 java_objectheader* _exceptionptr = NULL;
 178 #endif
 179
 180 /************* use classinfo structure as java.lang.Class object **************/
 181
 182 void use_class_as_object(classinfo *c)
 183 {
 184 /*      vftbl *vt; */
 185 /*      vftbl *newtbl; */
 186         java_objectheader *vmo;
 187
 188 /*      vt = class_java_lang_Class->vftbl; */
 189
 190         if (!c->classvftbl) {
 191                 c->classvftbl = true;
 192
 193                 /*                copy_vftbl(&newtbl, vt);
 194                                                   newtbl->class = c->header.vftbl->class;
 195                                                   newtbl->baseval = c->header.vftbl->baseval;
 196                                                   newtbl->diffval = c->header.vftbl->diffval;
 197                                                   c->header.vftbl = newtbl;*/
 198
 199                 c->header.vftbl = class_java_lang_Class->vftbl;
 200
 201                 method_vmclass_init =
 202                         class_findmethod(class_java_lang_VMClass,
 203                                                          utf_new_char("<init>"),
 204                                                          utf_new_char("(Lgnu/classpath/RawData;)V"));
 205
 206                 if (method_vmclass_init == 0) {
 207                         class_showmethods(class_java_lang_VMClass);
 208                         panic("Needed class initializer for VMClass could not be found");
 209                 }
 210         }
 211
 212         vmo = builtin_new(class_java_lang_VMClass);
 213
 214         if (!vmo)
 215                 panic("Error while creating instance of java/lang/VMClass");
 216
 217         asm_calljavafunction(method_vmclass_init, vmo, c, NULL, NULL);
 218
 219         c->vmClass = (java_lang_VMClass *) vmo;
 220 }
 221
 222
 223 /*************************** include native methods ***************************/
 224
 225 #ifdef USE_GTK
 226 #include "nat/GdkGraphics.c"
 227 #include "nat/GtkComponentPeer.c"
 228 #include "nat/GdkPixbufDecoder.c"
 229 #include "nat/GtkScrollPanePeer.c"
 230 #include "nat/GtkFileDialogPeer.c"
 231 #include "nat/GtkLabelPeer.c"
 232 #endif
 233
 234
 235 /************************** tables for methods ********************************/
 236
 237 #undef JOWENN_DEBUG
 238 #undef JOWENN_DEBUG1
 239
 240 /* table for locating native methods */
 241 static struct nativeref {
 242         char *classname;
 243         char *methodname;
 244         char *descriptor;
 245         bool isstatic;
 246         functionptr func;
 247 } nativetable [] = {
 248
 249 #include "nativetable.hh"
 250
 251 };
 252
 253
 254 #define NATIVETABLESIZE  (sizeof(nativetable)/sizeof(struct nativeref))
 255
 256 /* table for fast string comparison */
 257 static struct nativecompref {
 258         utf *classname;
 259         utf *methodname;
 260         utf *descriptor;
 261         bool isstatic;
 262         functionptr func;
 263 } nativecomptable [NATIVETABLESIZE];
 264
 265 /* string comparsion table initialized */
 266 static bool nativecompdone = false;
 267
 268
 269 /******************************************************************************/
 270 /******************************************************************************/
 271 #include "natcalls.h"
 272
 273 /* string call comparison table initialized */
 274
 275 /******************************************************************************/
 276 /******************************************************************************/
 277
 278 /*--------------- native method calls & classes used -------------------------*/
 279
 280 void throw_exception_exit()
 281 {
 282         java_objectheader *xptr;
 283         classinfo *c;
 284         methodinfo *pss;
 285
 286         if (*exceptionptr) {
 287                 xptr = *exceptionptr;
 288
 289                 /* clear exception, because we are calling jit code again */
 290                 *exceptionptr = NULL;
 291
 292                 printf("Exception in thread \"main\" ");
 293                 fflush(stdout);
 294
 295                 c = xptr->vftbl->class;
 296
 297 /*              ts = class_resolveclassmethod(c, */
 298 /*                                                                        utf_new_char("toString"), */
 299 /*                                                                        utf_new_char("()Ljava/lang/String;"), */
 300 /*                                                                        class_java_lang_Object, */
 301 /*                                                                        false); */
 302
 303 /*              if (!ts) { */
 304 /*                      panic("internal error"); */
 305 /*              } */
 306
 307 /*              tostring = asm_calljavafunction(ts, xptr, NULL, NULL, NULL); */
 308
 309 /*              utf_display(javastring_toutf(tostring, false)); */
 310
 311                 pss = class_resolveclassmethod(c,
 312                                                                            utf_new_char("printStackTrace"),
 313                                                                            utf_new_char("()V"),
 314                                                                            class_java_lang_Object,
 315                                                                            false);
 316
 317                 /* print the stacktrace */
 318                 if (pss) {
 319                         asm_calljavafunction(pss, xptr, NULL, NULL, NULL);
 320
 321                 } else {
 322                         panic("printStackTrace not found!");
 323                 }
 324
 325                 fflush(stdout);
 326
 327                 /* good bye! */
 328                 exit(1);
 329         }
 330 }
 331
 332
 333 java_objectheader *new_exception(char *classname)
 334 {
 335         classinfo *c = class_new(utf_new_char(classname));
 336
 337         return native_new_and_init(c);
 338 }
 339
 340 java_objectheader *new_exception_message(char *classname, char *message)
 341 {
 342         classinfo *c = class_new(utf_new_char(classname));
 343
 344         return native_new_and_init_string(c, javastring_new_char(message));
 345 }
 346
 347
 348 java_objectheader *new_exception_throwable(char *classname, java_lang_Throwable *throwable)
 349 {
 350         classinfo *c = class_new(utf_new_char(classname));
 351
 352         return native_new_and_init_throwable(c, throwable);
 353 }
 354
 355
 356 java_objectheader *new_exception_utfmessage(char *classname, utf *message)
 357 {
 358         classinfo *c = class_new(utf_new_char(classname));
 359
 360         return native_new_and_init_string(c, javastring_new(message));
 361 }
 362
 363
 364 java_objectheader *new_exception_javastring(char *classname, java_lang_String *message)
 365 {
 366         classinfo *c = class_new(utf_new_char(classname));
 367
 368         return native_new_and_init_string(c, message);
 369 }
 370
 371
 372 java_objectheader *new_exception_int(char *classname, s4 i)
 373 {
 374         classinfo *c = class_new(utf_new_char(classname));
 375
 376         return native_new_and_init_int(c, i);
 377 }
 378
 379
 380 /*********************** function: native_loadclasses **************************
 381
 382         load classes required for native methods
 383
 384 *******************************************************************************/
 385
 386 void native_loadclasses()
 387 {
 388         static int classesLoaded = 0; /*temporary hack JoWenn*/
 389
 390         if (classesLoaded)
 391                 return;
 392
 393         classesLoaded = 1;
 394
 395         class_java_lang_Cloneable =
 396                 class_new(utf_new_char("java/lang/Cloneable"));
 397         class_load(class_java_lang_Cloneable);
 398         class_link(class_java_lang_Cloneable);
 399
 400         class_java_lang_Class =
 401                 class_new(utf_new_char("java/lang/Class"));
 402         class_load(class_java_lang_Class);
 403         class_link(class_java_lang_Class);
 404
 405         class_java_lang_VMClass =
 406                 class_new(utf_new_char("java/lang/VMClass"));
 407         class_load(class_java_lang_VMClass);
 408         class_link(class_java_lang_VMClass);
 409
 410         class_java_lang_ClassLoader =
 411                 class_new(utf_new_char("java/lang/ClassLoader"));
 412         class_load(class_java_lang_ClassLoader);
 413         class_link(class_java_lang_ClassLoader);
 414
 415         /* load classes for wrapping primitive types */
 416         class_java_lang_Double = class_new(utf_new_char("java/lang/Double"));
 417         class_load(class_java_lang_Double);
 418         class_link(class_java_lang_Double);
 419
 420         class_java_lang_Float = class_new(utf_new_char("java/lang/Float"));
 421         class_load(class_java_lang_Float);
 422         class_link(class_java_lang_Float);
 423
 424         class_java_lang_Character =     class_new(utf_new_char("java/lang/Character"));
 425         class_load(class_java_lang_Character);
 426         class_link(class_java_lang_Character);
 427
 428         class_java_lang_Integer = class_new(utf_new_char("java/lang/Integer"));
 429         class_load(class_java_lang_Integer);
 430         class_link(class_java_lang_Integer);
 431
 432         class_java_lang_Long = class_new(utf_new_char("java/lang/Long"));
 433         class_load(class_java_lang_Long);
 434         class_link(class_java_lang_Long);
 435
 436         class_java_lang_Byte = class_new(utf_new_char("java/lang/Byte"));
 437         class_load(class_java_lang_Byte);
 438         class_link(class_java_lang_Byte);
 439
 440         class_java_lang_Short = class_new(utf_new_char("java/lang/Short"));
 441         class_load(class_java_lang_Short);
 442         class_link(class_java_lang_Short);
 443
 444         class_java_lang_Boolean = class_new(utf_new_char("java/lang/Boolean"));
 445         class_load(class_java_lang_Boolean);
 446         class_link(class_java_lang_Boolean);
 447
 448         class_java_lang_Void = class_new(utf_new_char("java/lang/Void"));
 449         class_load(class_java_lang_Void);
 450         class_link(class_java_lang_Void);
 451 }
 452
 453
 454 /*****************************************************************************
 455
 456         create systemclassloader object and initialize instance fields
 457
 458 ******************************************************************************/
 459
 460 void init_systemclassloader()
 461 {
 462         log_text("init_systemclassloader");
 463         if (!SystemClassLoader) {
 464                 native_loadclasses();
 465                 log_text("Initializing new system class loader");
 466                 /* create object and call initializer */
 467                 SystemClassLoader = (java_lang_ClassLoader *) native_new_and_init(class_new(utf_new_char("gnu/java/lang/SystemClassLoader")));
 468
 469                 /* systemclassloader has no parent */
 470                 SystemClassLoader->parent      = NULL;
 471                 SystemClassLoader->initialized = true;
 472         }
 473         log_text("leaving system class loader");
 474 }
 475
 476
 477 /********************* function: native_setclasspath **************************/
 478
 479 void native_setclasspath(char *path)
 480 {
 481         /* set searchpath for classfiles */
 482         classpath = path;
 483 }
 484
 485
 486 /*********************** Function: native_findfunction *************************
 487
 488         Looks up a method (must have the same class name, method name, descriptor
 489         and 'static'ness) and returns a function pointer to it.
 490         Returns: function pointer or NULL (if there is no such method)
 491
 492         Remark: For faster operation, the names/descriptors are converted from C
 493                 strings to Unicode the first time this function is called.
 494
 495 *******************************************************************************/
 496
 497 functionptr native_findfunction(utf *cname, utf *mname,
 498                                                                 utf *desc, bool isstatic)
 499 {
 500         int i;
 501         /* entry of table for fast string comparison */
 502         struct nativecompref *n;
 503         /* for warning message if no function is found */
 504         char *buffer;
 505         int buffer_len;
 506
 507         isstatic = isstatic ? true : false;
 508
 509         if (!nativecompdone) {
 510                 for (i = 0; i < NATIVETABLESIZE; i++) {
 511                         nativecomptable[i].classname  =
 512                                 utf_new_char(nativetable[i].classname);
 513                         nativecomptable[i].methodname =
 514                                 utf_new_char(nativetable[i].methodname);
 515                         nativecomptable[i].descriptor =
 516                                 utf_new_char(nativetable[i].descriptor);
 517                         nativecomptable[i].isstatic   =
 518                                 nativetable[i].isstatic;
 519                         nativecomptable[i].func       =
 520                                 nativetable[i].func;
 521                 }
 522                 nativecompdone = true;
 523         }
 524
 525 #ifdef JOWENN_DEBUG
 526         buffer_len =
 527                 utf_strlen(cname) + utf_strlen(mname) + utf_strlen(desc) + 64;
 528
 529         buffer = MNEW(char, buffer_len);
 530
 531         strcpy(buffer, "searching matching function in native table:");
 532         utf_sprint(buffer+strlen(buffer), mname);
 533         strcpy(buffer+strlen(buffer), ": ");
 534         utf_sprint(buffer+strlen(buffer), desc);
 535         strcpy(buffer+strlen(buffer), " for class ");
 536         utf_sprint(buffer+strlen(buffer), cname);
 537
 538         log_text(buffer);
 539
 540         MFREE(buffer, char, buffer_len);
 541 #endif
 542
 543         for (i = 0; i < NATIVETABLESIZE; i++) {
 544                 n = &(nativecomptable[i]);
 545
 546                 if (cname == n->classname && mname == n->methodname &&
 547                     desc == n->descriptor && isstatic == n->isstatic)
 548                         return n->func;
 549 #ifdef JOWENN_DEBUG
 550                         else {
 551                                 if (cname == n->classname && mname == n->methodname )  log_text("static and descriptor mismatch");
 552
 553                                 else {
 554                                         buffer_len =
 555                                           utf_strlen(n->classname) + utf_strlen(n->methodname) + utf_strlen(n->descriptor) + 64;
 556
 557                                         buffer = MNEW(char, buffer_len);
 558
 559                                         strcpy(buffer, "comparing with:");
 560                                         utf_sprint(buffer+strlen(buffer), n->methodname);
 561                                         strcpy (buffer+strlen(buffer), ": ");
 562                                         utf_sprint(buffer+strlen(buffer), n->descriptor);
 563                                         strcpy(buffer+strlen(buffer), " for class ");
 564                                         utf_sprint(buffer+strlen(buffer), n->classname);
 565
 566                                         log_text(buffer);
 567
 568                                         MFREE(buffer, char, buffer_len);
 569                                 }
 570                         }
 571 #endif
 572         }
 573
 574
 575         /* no function was found, display warning */
 576
 577         buffer_len =
 578                 utf_strlen(cname) + utf_strlen(mname) + utf_strlen(desc) + 64;
 579
 580         buffer = MNEW(char, buffer_len);
 581
 582         strcpy(buffer, "warning: native function ");
 583         utf_sprint(buffer + strlen(buffer), mname);
 584         strcpy(buffer + strlen(buffer), ": ");
 585         utf_sprint(buffer + strlen(buffer), desc);
 586         strcpy(buffer + strlen(buffer), " not found in class ");
 587         utf_sprint(buffer + strlen(buffer), cname);
 588
 589         log_text(buffer);
 590
 591         MFREE(buffer, char, buffer_len);
 592
 593 /*      exit(1); */
 594
 595         /* keep compiler happy */
 596         return NULL;
 597 }
 598
 599
 600 /********************** function: javastring_new *******************************
 601
 602         creates a new object of type java/lang/String with the text of
 603         the specified utf8-string
 604
 605         return: pointer to the string or NULL if memory is exhausted.
 606
 607 *******************************************************************************/
 608
 609 java_lang_String *javastring_new(utf *u)
 610 {
 611         char *utf_ptr = u->text;        /* current utf character in utf string    */
 612         int utflength = utf_strlen(u);  /* length of utf-string if uncompressed   */
 613         java_lang_String *s;                /* result-string                          */
 614         java_chararray *a;
 615         s4 i;
 616
 617         s = (java_lang_String *) builtin_new(class_java_lang_String);
 618         a = builtin_newarray_char(utflength);
 619
 620         /* javastring or character-array could not be created */
 621         if (!a || !s)
 622                 return NULL;
 623
 624         /* decompress utf-string */
 625         for (i = 0; i < utflength; i++)
 626                 a->data[i] = utf_nextu2(&utf_ptr);
 627
 628         /* set fields of the javastring-object */
 629         s->value  = a;
 630         s->offset = 0;
 631         s->count  = utflength;
 632
 633         return s;
 634 }
 635
 636
 637 /********************** function: javastring_new_char **************************
 638
 639         creates a new java/lang/String object which contains the convertet
 640         C-string passed via text.
 641
 642         return: the object pointer or NULL if memory is exhausted.
 643
 644 *******************************************************************************/
 645
 646 java_lang_String *javastring_new_char(char *text)
 647 {
 648         s4 i;
 649         s4 len = strlen(text); /* length of the string */
 650         java_lang_String *s;   /* result-string */
 651         java_chararray *a;
 652
 653         s = (java_lang_String *) builtin_new(class_java_lang_String);
 654         a = builtin_newarray_char(len);
 655
 656         /* javastring or character-array could not be created */
 657         if (!a || !s)
 658                 return NULL;
 659
 660         /* copy text */
 661         for (i = 0; i < len; i++)
 662                 a->data[i] = text[i];
 663
 664         /* set fields of the javastring-object */
 665         s->value  = a;
 666         s->offset = 0;
 667         s->count  = len;
 668
 669         return s;
 670 }
 671
 672
 673 /************************* function javastring_tochar **************************
 674
 675         converts a Java string into a C string.
 676
 677         return: pointer to C string
 678
 679         Caution: every call of this function overwrites the previous string !!!
 680
 681 *******************************************************************************/
 682
 683 static char stringbuffer[MAXSTRINGSIZE];
 684
 685 char *javastring_tochar(java_objectheader *so)
 686 {
 687         java_lang_String *s = (java_lang_String *) so;
 688         java_chararray *a;
 689         s4 i;
 690
 691         if (!s)
 692                 return "";
 693
 694         a = s->value;
 695
 696         if (!a)
 697                 return "";
 698
 699         if (s->count > MAXSTRINGSIZE)
 700                 return "";
 701
 702         for (i = 0; i < s->count; i++)
 703                 stringbuffer[i] = a->data[s->offset + i];
 704
 705         stringbuffer[i] = '\0';
 706
 707         return stringbuffer;
 708 }
 709
 710
 711 /****************** function class_findfield_approx ****************************
 712
 713         searches in 'classinfo'-structure for a field with the
 714         specified name
 715
 716 *******************************************************************************/
 717
 718 fieldinfo *class_findfield_approx(classinfo *c, utf *name)
 719 {
 720         s4 i;
 721
 722         for (i = 0; i < c->fieldscount; i++) {
 723                 /* compare field names */
 724                 if ((c->fields[i].name == name))
 725                         return &(c->fields[i]);
 726         }
 727
 728         /* field was not found, raise exception */
 729         *exceptionptr = new_exception(string_java_lang_NoSuchFieldException);
 730
 731         return NULL;
 732 }
 733
 734
 735 s4 class_findfield_index_approx(classinfo *c, utf *name)
 736 {
 737         s4 i;
 738
 739         for (i = 0; i < c->fieldscount; i++) {
 740                 /* compare field names */
 741                 if ((c->fields[i].name == name))
 742                         return i;
 743         }
 744
 745         /* field was not found, raise exception */
 746         *exceptionptr = new_exception(string_java_lang_NoSuchFieldException);
 747
 748         return -1;
 749 }
 750
 751
 752 /********************** function: native_new_and_init *************************
 753
 754         Creates a new object on the heap and calls the initializer.
 755         Returns the object pointer or NULL if memory is exhausted.
 756
 757 *******************************************************************************/
 758
 759 java_objectheader *native_new_and_init(classinfo *c)
 760 {
 761         methodinfo *m;
 762         java_objectheader *o;
 763
 764         if (!c)
 765                 return *exceptionptr;
 766
 767         o = builtin_new(c);                 /* create object                      */
 768
 769         if (!o)
 770                 return NULL;
 771
 772         /* find initializer */
 773
 774         m = class_findmethod(c,
 775                                                  utf_new_char("<init>"),
 776                                                  utf_new_char("()V"));
 777
 778         if (!m) {                           /* initializer not found              */
 779                 if (verbose) {
 780                         char logtext[MAXLOGTEXT];
 781                         sprintf(logtext, "Warning: class has no instance-initializer: ");
 782                         utf_sprint_classname(logtext + strlen(logtext), c->name);
 783                         log_text(logtext);
 784                 }
 785                 return o;
 786         }
 787
 788         /* call initializer */
 789
 790         asm_calljavafunction(m, o, NULL, NULL, NULL);
 791
 792         return o;
 793 }
 794
 795
 796 java_objectheader *native_new_and_init_string(classinfo *c, java_lang_String *s)
 797 {
 798         methodinfo *m;
 799         java_objectheader *o;
 800
 801         if (!c)
 802                 return *exceptionptr;
 803
 804         o = builtin_new(c);          /* create object          */
 805
 806         if (!o)
 807                 return NULL;
 808
 809         /* find initializer */
 810
 811         m = class_findmethod(c,
 812                                                  utf_new_char("<init>"),
 813                                                  utf_new_char("(Ljava/lang/String;)V"));
 814
 815         if (!m) {                                       /* initializer not found  */
 816                 if (verbose) {
 817                         char logtext[MAXLOGTEXT];
 818                         sprintf(logtext, "Warning: class has no instance-initializer: ");
 819                         utf_sprint_classname(logtext + strlen(logtext), c->name);
 820                         log_text(logtext);
 821                 }
 822                 return o;
 823         }
 824
 825         /* call initializer */
 826
 827         asm_calljavafunction(m, o, s, NULL, NULL);
 828
 829         return o;
 830 }
 831
 832
 833 java_objectheader *native_new_and_init_int(classinfo *c, s4 i)
 834 {
 835         methodinfo *m;
 836         java_objectheader *o;
 837
 838         if (!c)
 839                 return *exceptionptr;
 840
 841         o = builtin_new(c);          /* create object          */
 842
 843         if (!o) return NULL;
 844
 845         /* find initializer */
 846
 847         m = class_findmethod(c,
 848                                                  utf_new_char("<init>"),
 849                                                  utf_new_char("(I)V"));
 850
 851         if (!m) {                                       /* initializer not found  */
 852                 if (verbose) {
 853                         char logtext[MAXLOGTEXT];
 854                         sprintf(logtext, "Warning: class has no instance-initializer: ");
 855                         utf_sprint_classname(logtext + strlen(logtext), c->name);
 856                         log_text(logtext);
 857                 }
 858                 return o;
 859         }
 860
 861         /* call initializer */
 862
 863         asm_calljavafunction(m, o, (void *) i, NULL, NULL);
 864
 865         return o;
 866 }
 867
 868
 869 java_objectheader *native_new_and_init_throwable(classinfo *c, java_lang_Throwable *t)
 870 {
 871         methodinfo *m;
 872         java_objectheader *o;
 873
 874         if (!c)
 875                 return *exceptionptr;
 876
 877         o = builtin_new(c);          /* create object          */
 878
 879         if (!o) return NULL;
 880
 881         /* find initializer */
 882
 883         m = class_findmethod(c,
 884                                                  utf_new_char("<init>"),
 885                                                  utf_new_char("(Ljava/lang/Throwable;)V"));
 886
 887         if (!m) {                                       /* initializer not found  */
 888                 if (verbose) {
 889                         char logtext[MAXLOGTEXT];
 890                         sprintf(logtext, "Warning: class has no instance-initializer: ");
 891                         utf_sprint_classname(logtext + strlen(logtext), c->name);
 892                         log_text(logtext);
 893                 }
 894                 return o;
 895         }
 896
 897         /* call initializer */
 898
 899         asm_calljavafunction(m, o, t, NULL, NULL);
 900
 901         return o;
 902 }
 903
 904
 905 /******************** function: stringtable_update ****************************
 906
 907         traverses the javastring hashtable and sets the vftbl-entries of
 908         javastrings which were temporarily set to NULL, because
 909         java.lang.Object was not yet loaded
 910
 911 *******************************************************************************/
 912
 913 void stringtable_update ()
 914 {
 915         java_lang_String *js;
 916         java_chararray *a;
 917         literalstring *s;       /* hashtable entry */
 918         int i;
 919
 920         for (i = 0; i < string_hash.size; i++) {
 921                 s = string_hash.ptr[i];
 922                 if (s) {
 923                         while (s) {
 924
 925                                 js = (java_lang_String *) s->string;
 926
 927                                 if (!js || !js->value)
 928                                         /* error in hashtable found */
 929                                         panic("invalid literalstring in hashtable");
 930
 931                                 a = js->value;
 932
 933                                 if (!js->header.vftbl)
 934                                         /* vftbl of javastring is NULL */
 935                                         js->header.vftbl = class_java_lang_String->vftbl;
 936
 937                                 if (!a->header.objheader.vftbl)
 938                                         /* vftbl of character-array is NULL */
 939                                         a->header.objheader.vftbl = primitivetype_table[ARRAYTYPE_CHAR].arrayvftbl;
 940
 941                                 /* follow link in external hash chain */
 942                                 s = s->hashlink;
 943                         }
 944                 }
 945         }
 946 }
 947
 948
 949 /************************* function: u2_utflength ***************************
 950
 951         returns the utf length in bytes of a u2 array
 952
 953 *****************************************************************************/
 954
 955 u4 u2_utflength(u2 *text, u4 u2_length)
 956 {
 957         u4 result_len =  0;  /* utf length in bytes  */
 958         u2 ch;               /* current unicode character */
 959         u4 len;
 960
 961         for (len = 0; len < u2_length; len++) {
 962                 /* next unicode character */
 963                 ch = *text++;
 964
 965                 /* determine bytes required to store unicode character as utf */
 966                 if (ch && (ch < 0x80))
 967                         result_len++;
 968                 else if (ch < 0x800)
 969                         result_len += 2;
 970                 else
 971                         result_len += 3;
 972         }
 973
 974     return result_len;
 975 }
 976
 977
 978 /********************* function: utf_new_u2 ***********************************
 979
 980         make utf symbol from u2 array,
 981         if isclassname is true '.' is replaced by '/'
 982
 983 *******************************************************************************/
 984
 985 utf *utf_new_u2(u2 *unicode_pos, u4 unicode_length, bool isclassname)
 986 {
 987         char *buffer; /* memory buffer for  unicode characters */
 988         char *pos;    /* pointer to current position in buffer */
 989         u4 left;      /* unicode characters left */
 990         u4 buflength; /* utf length in bytes of the u2 array  */
 991         utf *result;  /* resulting utf-string */
 992         int i;
 993
 994         /* determine utf length in bytes and allocate memory */
 995         /* printf("utf_new_u2: unicode_length=%d\n",unicode_length);            */
 996         buflength = u2_utflength(unicode_pos, unicode_length);
 997         buffer    = MNEW(char, buflength);
 998
 999         /* memory allocation failed */
1000         if (!buffer) {
1001                 printf("length: %d\n",buflength);
1002                 log_text("utf_new_u2:buffer==NULL");
1003         }
1004
1005         left = buflength;
1006         pos  = buffer;
1007
1008         for (i = 0; i++ < unicode_length; unicode_pos++) {
1009                 /* next unicode character */
1010                 u2 c = *unicode_pos;
1011
1012                 if ((c != 0) && (c < 0x80)) {
1013                         /* 1 character */
1014                         left--;
1015                 if ((int) left < 0) break;
1016                         /* convert classname */
1017                         if (isclassname && c == '.')
1018                                 *pos++ = '/';
1019                         else
1020                                 *pos++ = (char) c;
1021
1022                 } else if (c < 0x800) {
1023                         /* 2 characters */
1024                 unsigned char high = c >> 6;
1025                 unsigned char low  = c & 0x3F;
1026                         left = left - 2;
1027                 if ((int) left < 0) break;
1028                 *pos++ = high | 0xC0;
1029                 *pos++ = low  | 0x80;
1030
1031                 } else {
1032                 /* 3 characters */
1033                 char low  = c & 0x3f;
1034                 char mid  = (c >> 6) & 0x3F;
1035                 char high = c >> 12;
1036                         left = left - 3;
1037                 if ((int) left < 0) break;
1038                 *pos++ = high | 0xE0;
1039                 *pos++ = mid  | 0x80;
1040                 *pos++ = low  | 0x80;
1041                 }
1042         }
1043
1044         /* insert utf-string into symbol-table */
1045         result = utf_new(buffer,buflength);
1046
1047         MFREE(buffer, char, buflength);
1048
1049         return result;
1050 }
1051
1052
1053 /********************* function: javastring_toutf *****************************
1054
1055         make utf symbol from javastring
1056
1057 *******************************************************************************/
1058
1059 utf *javastring_toutf(java_lang_String *string, bool isclassname)
1060 {
1061         java_lang_String *str = (java_lang_String *) string;
1062
1063 /*      printf("javastring_toutf offset: %d, len %d\n",str->offset, str->count); */
1064 /*      fflush(stdout); */
1065
1066         return utf_new_u2(str->value->data + str->offset, str->count, isclassname);
1067 }
1068
1069
1070 /********************* function: literalstring_u2 *****************************
1071
1072     searches for the javastring with the specified u2-array in
1073     the string hashtable, if there is no such string a new one is
1074     created
1075
1076     if copymode is true a copy of the u2-array is made
1077
1078 *******************************************************************************/
1079
1080 java_objectheader *literalstring_u2(java_chararray *a, u4 length, u4 offset,
1081                                                                         bool copymode)
1082 {
1083     literalstring *s;                /* hashtable element */
1084     java_lang_String *js;            /* u2-array wrapped in javastring */
1085     java_chararray *stringdata;      /* copy of u2-array */
1086     u4 key;
1087     u4 slot;
1088     u2 i;
1089
1090 //#define DEBUG_LITERALSTRING_U2
1091 #ifdef DEBUG_LITERALSTRING_U2
1092     printf("literalstring_u2: length=%d, offset=%d\n", length, offset);
1093         fflush(stdout);
1094 #endif
1095
1096     /* find location in hashtable */
1097     key  = unicode_hashkey(a->data + offset, length);
1098     slot = key & (string_hash.size - 1);
1099     s    = string_hash.ptr[slot];
1100
1101     while (s) {
1102                 js = (java_lang_String *) s->string;
1103
1104                 if (length == js->count) {
1105                         /* compare text */
1106                         for (i = 0; i < length; i++) {
1107                                 if (a->data[offset + i] != js->value->data[i])
1108                                         goto nomatch;
1109                         }
1110
1111                         /* string already in hashtable, free memory */
1112                         if (!copymode)
1113                                 lit_mem_free(a, sizeof(java_chararray) + sizeof(u2) * (length - 1) + 10);
1114
1115 #ifdef DEBUG_LITERALSTRING_U2
1116                         printf("literalstring_u2: foundentry at %p\n", js);
1117                         utf_display(javastring_toutf(js, 0));
1118                         printf("\n\n");
1119                         fflush(stdout);
1120 #endif
1121                         return (java_objectheader *) js;
1122                 }
1123
1124         nomatch:
1125                 /* follow link in external hash chain */
1126                 s = s->hashlink;
1127     }
1128
1129     if (copymode) {
1130                 /* create copy of u2-array for new javastring */
1131                 u4 arraysize = sizeof(java_chararray) + sizeof(u2) * (length - 1) + 10;
1132                 stringdata = lit_mem_alloc(arraysize);
1133 /*              memcpy(stringdata, a, arraysize); */
1134                 memcpy(&(stringdata->header), &(a->header), sizeof(java_arrayheader));
1135                 memcpy(&(stringdata->data), &(a->data) + offset, sizeof(u2) * (length - 1) + 10);
1136
1137     } else {
1138                 stringdata = a;
1139         }
1140
1141     /* location in hashtable found, complete arrayheader */
1142     stringdata->header.objheader.vftbl = primitivetype_table[ARRAYTYPE_CHAR].arrayvftbl;
1143     stringdata->header.size = length;
1144
1145     /* create new javastring */
1146     js = LNEW(java_lang_String);
1147         /* TWISTI */
1148 /*      js->header.vftbl = class_java_lang_String->vftbl; */
1149     js->header.vftbl = class_load(class_new(utf_new_char("java/lang/String")))->vftbl;
1150     js->value  = stringdata;
1151     js->offset = 0;
1152     js->count  = length;
1153
1154     /* create new literalstring */
1155     s = NEW(literalstring);
1156     s->hashlink = string_hash.ptr[slot];
1157     s->string   = (java_objectheader *) js;
1158     string_hash.ptr[slot] = s;
1159
1160     /* update numbe of hashtable entries */
1161     string_hash.entries++;
1162
1163     /* reorganization of hashtable */
1164     if (string_hash.entries > (string_hash.size * 2)) {
1165                 /* reorganization of hashtable, average length of
1166          the external chains is approx. 2                */
1167
1168                 u4 i;
1169                 literalstring *s;
1170                 hashtable newhash; /* the new hashtable */
1171
1172                 /* create new hashtable, double the size */
1173                 init_hashtable(&newhash, string_hash.size * 2);
1174                 newhash.entries = string_hash.entries;
1175
1176                 /* transfer elements to new hashtable */
1177                 for (i = 0; i < string_hash.size; i++) {
1178                         s = string_hash.ptr[i];
1179                         while (s) {
1180                                 literalstring *nexts = s->hashlink;
1181                                 js   = (java_lang_String *) s->string;
1182                                 slot = unicode_hashkey(js->value->data, js->count) & (newhash.size - 1);
1183
1184                                 s->hashlink = newhash.ptr[slot];
1185                                 newhash.ptr[slot] = s;
1186
1187                                 /* follow link in external hash chain */
1188                                 s = nexts;
1189                         }
1190                 }
1191
1192                 /* dispose old table */
1193                 MFREE(string_hash.ptr, void*, string_hash.size);
1194                 string_hash = newhash;
1195     }
1196
1197 #ifdef DEBUG_LITERALSTRING_U2
1198         printf("literalstring_u2: newly created at %p\n", js);
1199         utf_display(javastring_toutf(js, 0));
1200         printf("\n\n");
1201         fflush(stdout);
1202 #endif
1203
1204     return (java_objectheader *) js;
1205 }
1206
1207
1208 /******************** Function: literalstring_new *****************************
1209
1210     creates a new javastring with the text of the utf-symbol
1211     and inserts it into the string hashtable
1212
1213 *******************************************************************************/
1214
1215 java_objectheader *literalstring_new(utf *u)
1216 {
1217     char *utf_ptr = u->text;         /* pointer to current unicode character in utf string */
1218     u4 utflength  = utf_strlen(u);   /* length of utf-string if uncompressed */
1219     java_chararray *a;               /* u2-array constructed from utf string */
1220     u4 i;
1221
1222     /* allocate memory */
1223     a = lit_mem_alloc(sizeof(java_chararray) + sizeof(u2) * (utflength - 1) + 10);
1224
1225     /* convert utf-string to u2-array */
1226     for (i = 0; i < utflength; i++)
1227                 a->data[i] = utf_nextu2(&utf_ptr);
1228
1229     return literalstring_u2(a, utflength, 0, false);
1230 }
1231
1232
1233 /********************** function: literalstring_free **************************
1234
1235         removes a javastring from memory
1236
1237 ******************************************************************************/
1238
1239 void literalstring_free(java_objectheader* sobj)
1240 {
1241         java_lang_String *s = (java_lang_String *) sobj;
1242         java_chararray *a = s->value;
1243
1244         /* dispose memory of java.lang.String object */
1245         LFREE(s, java_lang_String);
1246
1247         /* dispose memory of java-characterarray */
1248         LFREE(a, sizeof(java_chararray) + sizeof(u2) * (a->header.size - 1)); /* +10 ?? */
1249 }
1250
1251
1252 void copy_vftbl(vftbl **dest, vftbl *src)
1253 {
1254     *dest = src;
1255 #if 0
1256     /* XXX this kind of copying does not work (in the general
1257      * case). The interface tables would have to be copied, too. I
1258      * don't see why we should make a copy anyway. -Edwin
1259      */
1260         *dest = mem_alloc(sizeof(vftbl) + sizeof(methodptr)*(src->vftbllength-1));
1261         memcpy(*dest, src, sizeof(vftbl) - sizeof(methodptr));
1262         memcpy(&(*dest)->table, &src->table, src->vftbllength * sizeof(methodptr));
1263 #endif
1264 }
1265
1266
1267 /******************************************************************************************
1268
1269         creates method signature (excluding return type) from array of
1270         class-objects representing the parameters of the method
1271
1272 *******************************************************************************************/
1273
1274
1275 utf *create_methodsig(java_objectarray* types, char *retType)
1276 {
1277     char *buffer;       /* buffer for building the desciptor */
1278     char *pos;          /* current position in buffer */
1279     utf *result;        /* the method signature */
1280     u4 buffer_size = 3; /* minimal size=3: room for parenthesis and returntype */
1281     u4 i, j;
1282
1283     if (!types) return NULL;
1284
1285     /* determine required buffer-size */
1286     for (i = 0; i < types->header.size; i++) {
1287                 classinfo *c = (classinfo *) types->data[i];
1288                 buffer_size  = buffer_size + c->name->blength + 2;
1289     }
1290
1291     if (retType) buffer_size += strlen(retType);
1292
1293     /* allocate buffer */
1294     buffer = MNEW(u1, buffer_size);
1295     pos    = buffer;
1296
1297     /* method-desciptor starts with parenthesis */
1298     *pos++ = '(';
1299
1300     for (i = 0; i < types->header.size; i++) {
1301                 char ch;
1302
1303                 /* current argument */
1304             classinfo *c = (classinfo *) types->data[i];
1305
1306             /* current position in utf-text */
1307             char *utf_ptr = c->name->text;
1308
1309             /* determine type of argument */
1310             if ((ch = utf_nextu2(&utf_ptr)) == '[') {
1311                 /* arrayclass */
1312                 for (utf_ptr--; utf_ptr < utf_end(c->name); utf_ptr++) {
1313                                 *pos++ = *utf_ptr; /* copy text */
1314                         }
1315
1316             } else {
1317                         /* check for primitive types */
1318                         for (j = 0; j < PRIMITIVETYPE_COUNT; j++) {
1319                                 char *utf_pos   = utf_ptr - 1;
1320                                 char *primitive = primitivetype_table[j].wrapname;
1321
1322                                 /* compare text */
1323                                 while (utf_pos < utf_end(c->name)) {
1324                                         if (*utf_pos++ != *primitive++) goto nomatch;
1325                                 }
1326
1327                                 /* primitive type found */
1328                                 *pos++ = primitivetype_table[j].typesig;
1329                                 goto next_type;
1330
1331                         nomatch:
1332                                 ;
1333                         }
1334
1335                         /* no primitive type and no arrayclass, so must be object */
1336                         *pos++ = 'L';
1337
1338                         /* copy text */
1339                         for (utf_ptr--; utf_ptr < utf_end(c->name); utf_ptr++) {
1340                                 *pos++ = *utf_ptr;
1341                         }
1342
1343                         *pos++ = ';';
1344
1345                 next_type:
1346                         ;
1347                 }
1348     }
1349
1350     *pos++ = ')';
1351
1352     if (retType) {
1353                 for (i = 0; i < strlen(retType); i++) {
1354                         *pos++ = retType[i];
1355                 }
1356     }
1357
1358     /* create utf-string */
1359     result = utf_new(buffer, (pos - buffer));
1360     MFREE(buffer, u1, buffer_size);
1361
1362     return result;
1363 }
1364
1365
1366 /******************************************************************************************
1367
1368         retrieve the next argument or returntype from a descriptor
1369         and return the corresponding class
1370
1371 *******************************************************************************************/
1372
1373 classinfo *get_type(char **utf_ptr,char *desc_end, bool skip)
1374 {
1375     classinfo *c = class_from_descriptor(*utf_ptr,desc_end,utf_ptr,
1376                                          (skip) ? CLASSLOAD_SKIP : CLASSLOAD_LOAD);
1377     if (!c)
1378         /* unknown type */
1379         panic("illegal descriptor");
1380
1381     if (skip) return NULL;
1382
1383     use_class_as_object(c);
1384     return c;
1385 }
1386
1387
1388 /******************************************************************************************
1389
1390         use the descriptor of a method to generate a java/lang/Class array
1391         which contains the classes of the parametertypes of the method
1392
1393 *******************************************************************************************/
1394
1395 java_objectarray* get_parametertypes(methodinfo *m)
1396 {
1397     utf  *descr    =  m->descriptor;    /* method-descriptor */
1398     char *utf_ptr  =  descr->text;      /* current position in utf-text */
1399     char *desc_end =  utf_end(descr);   /* points behind utf string     */
1400     java_objectarray* result;
1401     int parametercount = 0;
1402     int i;
1403
1404     /* skip '(' */
1405     utf_nextu2(&utf_ptr);
1406
1407     /* determine number of parameters */
1408     while ( *utf_ptr != ')' ) {
1409         get_type(&utf_ptr,desc_end,true);
1410         parametercount++;
1411     }
1412
1413     /* create class-array */
1414     result = builtin_anewarray(parametercount, class_java_lang_Class);
1415
1416     utf_ptr  =  descr->text;
1417     utf_nextu2(&utf_ptr);
1418
1419     /* get returntype classes */
1420     for (i = 0; i < parametercount; i++)
1421             result->data[i] = (java_objectheader *) get_type(&utf_ptr,desc_end, false);
1422
1423     return result;
1424 }
1425
1426
1427
1428
1429
1430 /******************************************************************************************
1431
1432         get the exceptions which can be thrown by a method
1433
1434 *******************************************************************************************/
1435
1436 java_objectarray* get_exceptiontypes(methodinfo *m) {
1437     u2 exccount=m->thrownexceptionscount;
1438     u2 i;
1439     java_objectarray *result;
1440     /* create class-array */
1441     result = builtin_anewarray(exccount, class_java_lang_Class);
1442     for (i=0;i<exccount;i++) {
1443         java_objectheader *oh=(java_objectheader*)(m->thrownexceptions[i]);
1444         use_class_as_object(oh);
1445         result->data[i]=oh;
1446     }
1447     return result;
1448 }
1449
1450
1451
1452
1453
1454 /******************************************************************************************
1455
1456         get the returntype class of a method
1457
1458 *******************************************************************************************/
1459
1460 classinfo *get_returntype(methodinfo *m)
1461 {
1462         char *utf_ptr;   /* current position in utf-text */
1463         char *desc_end;  /* points behind utf string     */
1464         utf *desc = m->descriptor; /* method-descriptor  */
1465
1466         utf_ptr  = desc->text;
1467         desc_end = utf_end(desc);
1468
1469         /* ignore parametertypes */
1470         while ((utf_ptr<desc_end) && utf_nextu2(&utf_ptr)!=')')
1471                 /* skip */ ;
1472
1473         return get_type(&utf_ptr,desc_end, false);
1474 }
1475
1476
1477 /*****************************************************************************/
1478 /*****************************************************************************/
1479
1480
1481 /*--------------------------------------------------------*/
1482 void printNativeCall(nativeCall nc) {
1483   int i,j;
1484
1485   printf("\n%s's Native Methods call:\n",nc.classname); fflush(stdout);
1486   for (i=0; i<nc.methCnt; i++) {
1487       printf("\tMethod=%s %s\n",nc.methods[i].methodname, nc.methods[i].descriptor);fflush(stdout);
1488
1489     for (j=0; j<nc.callCnt[i]; j++) {
1490         printf("\t\t<%i,%i>aCalled = %s %s %s\n",i,j,
1491         nc.methods[i].methodCalls[j].classname,
1492         nc.methods[i].methodCalls[j].methodname,
1493         nc.methods[i].methodCalls[j].descriptor);fflush(stdout);
1494       }
1495     }
1496   printf("-+++++--------------------\n");fflush(stdout);
1497 }
1498
1499 /*--------------------------------------------------------*/
1500 void printCompNativeCall(nativeCompCall nc) {
1501   int i,j;
1502   printf("printCompNativeCall BEGIN\n");fflush(stdout);
1503   printf("\n%s's Native Comp Methods call:\n",nc.classname->text);fflush(stdout);
1504   utf_display(nc.classname); fflush(stdout);
1505
1506   for (i=0; i<nc.methCnt; i++) {
1507     printf("\tMethod=%s %s\n",nc.methods[i].methodname->text,nc.methods[i].descriptor->text);fflush(stdout);
1508     utf_display(nc.methods[i].methodname); fflush(stdout);
1509     utf_display(nc.methods[i].descriptor);fflush(stdout);
1510     printf("\n");fflush(stdout);
1511
1512     for (j=0; j<nc.callCnt[i]; j++) {
1513       printf("\t\t<%i,%i>bCalled = ",i,j);fflush(stdout);
1514         utf_display(nc.methods[i].methodCalls[j].classname);fflush(stdout);
1515         utf_display(nc.methods[i].methodCalls[j].methodname); fflush(stdout);
1516         utf_display(nc.methods[i].methodCalls[j].descriptor);fflush(stdout);
1517         printf("\n");fflush(stdout);
1518       }
1519     }
1520 printf("---------------------\n");fflush(stdout);
1521 }
1522
1523
1524 /*--------------------------------------------------------*/
1525 classMeth findNativeMethodCalls(utf *c, utf *m, utf *d )
1526 {
1527     int i = 0;
1528     int j = 0;
1529     int cnt = 0;
1530     classMeth mc;
1531     mc.i_class = i;
1532     mc.j_method = j;
1533     mc.methCnt = cnt;
1534
1535     return mc;
1536 }
1537
1538 /*--------------------------------------------------------*/
1539 nativeCall* findNativeClassCalls(char *aclassname ) {
1540 int i;
1541
1542 for (i=0;i<NATIVECALLSSIZE; i++) {
1543    /* convert table to utf later to speed up search */
1544    if (strcmp(nativeCalls[i].classname, aclassname) == 0)
1545         return &nativeCalls[i];
1546    }
1547
1548 return NULL;
1549 }
1550 /*--------------------------------------------------------*/
1551 /*--------------------------------------------------------*/
1552 void utfNativeCall(nativeCall nc, nativeCompCall *ncc) {
1553   int i,j;
1554
1555
1556   ncc->classname = utf_new_char(nc.classname);
1557   ncc->methCnt = nc.methCnt;
1558
1559   for (i=0; i<nc.methCnt; i++) {
1560     ncc->methods[i].methodname = utf_new_char(nc.methods[i].methodname);
1561     ncc->methods[i].descriptor = utf_new_char(nc.methods[i].descriptor);
1562     ncc->callCnt[i] = nc.callCnt[i];
1563
1564     for (j=0; j<nc.callCnt[i]; j++) {
1565
1566         ncc->methods[i].methodCalls[j].classname  = utf_new_char(nc.methods[i].methodCalls[j].classname);
1567
1568         if (strcmp("", nc.methods[i].methodCalls[j].methodname) != 0) {
1569           ncc->methods[i].methodCalls[j].methodname = utf_new_char(nc.methods[i].methodCalls[j].methodname);
1570           ncc->methods[i].methodCalls[j].descriptor = utf_new_char(nc.methods[i].methodCalls[j].descriptor);
1571           }
1572         else {
1573           ncc->methods[i].methodCalls[j].methodname = NULL;
1574           ncc->methods[i].methodCalls[j].descriptor = NULL;
1575           }
1576       }
1577     }
1578 }
1579
1580
1581
1582 /*--------------------------------------------------------*/
1583
1584 bool natcall2utf(bool natcallcompdone) {
1585 int i;
1586
1587 if (natcallcompdone)
1588         return true;
1589
1590 for (i=0;i<NATIVECALLSSIZE; i++) {
1591    utfNativeCall  (nativeCalls[i], &nativeCompCalls[i]);
1592    }
1593
1594 return true;
1595 }
1596
1597 /*--------------------------------------------------------*/
1598
1599
1600 java_objectarray *builtin_asm_createclasscontextarray(classinfo **end,classinfo **start) {
1601 #warning platform dependend
1602         java_objectarray *tmpArray;
1603         int i;
1604         classinfo **current;
1605         classinfo *c;
1606         size_t size=(((size_t)start)-((size_t)end)) / sizeof (classinfo*);
1607 /*      printf("end %p, start %p, size %ld\n",end,start,size);*/
1608         if (!class_java_lang_Class)
1609                 class_java_lang_Class = class_new(utf_new_char ("java/lang/Class"));
1610         if (!class_java_lang_SecurityManager)
1611                 class_java_lang_SecurityManager = class_new(utf_new_char ("java/lang/SecurityManager"));
1612         if (size>0) {
1613                 if (start==class_java_lang_SecurityManager) {
1614                         size--;
1615                         start--;
1616                 }
1617         }
1618         tmpArray=builtin_newarray(size, class_array_of(class_java_lang_Class)->vftbl);
1619
1620         for(i=0,current=start;i<size;i++,current--) {
1621                 c=*current;
1622 /*              printf("%d\n",i);
1623                 utf_display(c->name);*/
1624                 use_class_as_object(c);
1625                 tmpArray->data[i]=c;
1626         }
1627         return tmpArray;
1628
1629 }
1630
1631 java_lang_ClassLoader *builtin_asm_getclassloader(classinfo **end,classinfo **start) {
1632 #warning platform dependend
1633         int i;
1634         classinfo **current;
1635         classinfo *c;
1636         classinfo *privilegedAction;
1637         size_t size=(((size_t)start)-((size_t)end)) / sizeof (classinfo*);
1638 /*      log_text("builtin_asm_getclassloader");
1639         printf("end %p, start %p, size %ld\n",end,start,size);*/
1640
1641         if (!class_java_lang_SecurityManager)
1642                 class_java_lang_SecurityManager = class_new(utf_new_char ("java/lang/SecurityManager"));
1643         if (size>0) {
1644                 if (start==class_java_lang_SecurityManager) {
1645                         size--;
1646                         start--;
1647                 }
1648         }
1649
1650         privilegedAction=class_new(utf_new_char("java/security/PrivilegedAction"));
1651
1652         for(i=0,current=start;i<size;i++,current--) {
1653                 c=*current;
1654                 if (c==privilegedAction) return NULL;
1655                 if (c->classloader) return c->classloader;
1656         }
1657         return NULL;
1658
1659
1660
1661
1662 /*
1663         log_text("Java_java_lang_VMSecurityManager_currentClassLoader");
1664         init_systemclassloader();
1665
1666         return SystemClassLoader;*/
1667 }
1668
1669 /*
1670  * These are local overrides for various environment variables in Emacs.
1671  * Please do not remove this and leave it at the end of the file, where
1672  * Emacs will automagically detect them.
1673  * ---------------------------------------------------------------------
1674  * Local variables:
1675  * mode: c
1676  * indent-tabs-mode: t
1677  * c-basic-offset: 4
1678  * tab-width: 4
1679  * End:
1680  */