src/vm/exceptions.c

   1 /* exceptions.c - exception related 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: Christian Thalinger
  28
  29    $Id: exceptions.c 1429 2004-11-02 08:58:26Z jowenn $
  30
  31 */
  32
  33
  34 #include <string.h>
  35 #include <stdarg.h>
  36 #include <stdlib.h>
  37 #include "asmpart.h"
  38 #include "global.h"
  39 #include "loader.h"
  40 #include "native.h"
  41 #include "tables.h"
  42 #include "jit/jit.h"
  43 #include "toolbox/logging.h"
  44 #include "toolbox/memory.h"
  45 #include "nat/java_lang_String.h"
  46 #include "nat/java_lang_Throwable.h"
  47
  48
  49 /* system exception classes required in cacao */
  50
  51 classinfo *class_java_lang_Throwable;
  52 classinfo *class_java_lang_Exception;
  53 classinfo *class_java_lang_Error;
  54 classinfo *class_java_lang_OutOfMemoryError;
  55
  56
  57 /* exception/error super class */
  58
  59 char *string_java_lang_Throwable =
  60     "java/lang/Throwable";
  61
  62 char *string_java_lang_VMThrowable =
  63     "java/lang/VMThrowable";
  64
  65
  66 /* specify some exception strings for code generation */
  67
  68 char *string_java_lang_ArithmeticException =
  69     "java/lang/ArithmeticException";
  70
  71 char *string_java_lang_ArithmeticException_message =
  72     "/ by zero";
  73
  74 char *string_java_lang_ArrayIndexOutOfBoundsException =
  75     "java/lang/ArrayIndexOutOfBoundsException";
  76
  77 char *string_java_lang_ArrayStoreException =
  78     "java/lang/ArrayStoreException";
  79
  80 char *string_java_lang_ClassCastException =
  81     "java/lang/ClassCastException";
  82
  83 char *string_java_lang_ClassNotFoundException =
  84         "java/lang/ClassNotFoundException";
  85
  86 char *string_java_lang_CloneNotSupportedException =
  87     "java/lang/CloneNotSupportedException";
  88
  89 char *string_java_lang_Exception =
  90     "java/lang/Exception";
  91
  92 char *string_java_lang_IllegalArgumentException =
  93     "java/lang/IllegalArgumentException";
  94
  95 char *string_java_lang_IllegalMonitorStateException =
  96     "java/lang/IllegalMonitorStateException";
  97
  98 char *string_java_lang_IndexOutOfBoundsException =
  99     "java/lang/IndexOutOfBoundsException";
 100
 101 char *string_java_lang_InterruptedException =
 102     "java/lang/InterruptedException";
 103
 104 char *string_java_lang_NegativeArraySizeException =
 105     "java/lang/NegativeArraySizeException";
 106
 107 char *string_java_lang_NoSuchFieldException =
 108         "java/lang/NoSuchFieldException";
 109
 110 char *string_java_lang_NoSuchMethodException =
 111         "java/lang/NoSuchMethodException";
 112
 113 char *string_java_lang_NullPointerException =
 114     "java/lang/NullPointerException";
 115
 116
 117 /* specify some error strings for code generation */
 118
 119 char *string_java_lang_AbstractMethodError =
 120     "java/lang/AbstractMethodError";
 121
 122 char *string_java_lang_ClassCircularityError =
 123     "java/lang/ClassCircularityError";
 124
 125 char *string_java_lang_ClassFormatError =
 126     "java/lang/ClassFormatError";
 127
 128 char *string_java_lang_Error =
 129     "java/lang/Error";
 130
 131 char *string_java_lang_ExceptionInInitializerError =
 132     "java/lang/ExceptionInInitializerError";
 133
 134 char *string_java_lang_IncompatibleClassChangeError =
 135     "java/lang/IncompatibleClassChangeError";
 136
 137 char *string_java_lang_InternalError =
 138     "java/lang/InternalError";
 139
 140 char *string_java_lang_LinkageError =
 141     "java/lang/LinkageError";
 142
 143 char *string_java_lang_NoClassDefFoundError =
 144     "java/lang/NoClassDefFoundError";
 145
 146 char *string_java_lang_NoSuchFieldError =
 147         "java/lang/NoSuchFieldError";
 148
 149 char *string_java_lang_NoSuchMethodError =
 150         "java/lang/NoSuchMethodError";
 151
 152 char *string_java_lang_OutOfMemoryError =
 153     "java/lang/OutOfMemoryError";
 154
 155 char *string_java_lang_UnsupportedClassVersionError =
 156     "java/lang/UnsupportedClassVersionError";
 157
 158 char *string_java_lang_VerifyError =
 159     "java/lang/VerifyError";
 160
 161 char *string_java_lang_VirtualMachineError =
 162     "java/lang/VirtualMachineError";
 163
 164
 165 /* init_system_exceptions *****************************************************
 166
 167    load, link and compile exceptions used in the system
 168
 169 *******************************************************************************/
 170
 171 void init_system_exceptions()
 172 {
 173         /* java/lang/Throwable */
 174
 175         class_java_lang_Throwable =
 176                 class_new(utf_new_char(string_java_lang_Throwable));
 177         class_load(class_java_lang_Throwable);
 178         class_link(class_java_lang_Throwable);
 179
 180         /* java/lang/Exception */
 181
 182         class_java_lang_Exception =
 183                 class_new(utf_new_char(string_java_lang_Exception));
 184         class_load(class_java_lang_Exception);
 185         class_link(class_java_lang_Exception);
 186
 187         /* java/lang/Error */
 188
 189         class_java_lang_Error =
 190                 class_new(utf_new_char(string_java_lang_Error));
 191         class_load(class_java_lang_Error);
 192         class_link(class_java_lang_Error);
 193
 194         /* java/lang/OutOfMemoryError */
 195
 196         class_java_lang_OutOfMemoryError =
 197                 class_new(utf_new_char(string_java_lang_OutOfMemoryError));
 198         class_load(class_java_lang_OutOfMemoryError);
 199         class_link(class_java_lang_OutOfMemoryError);
 200 }
 201
 202
 203 static void throw_exception_exit_intern(bool doexit)
 204 {
 205         java_objectheader *xptr;
 206         classinfo *c;
 207         methodinfo *pss;
 208
 209         if (*exceptionptr) {
 210                 xptr = *exceptionptr;
 211
 212                 /* clear exception, because we are calling jit code again */
 213                 *exceptionptr = NULL;
 214
 215                 c = xptr->vftbl->class;
 216
 217                 pss = class_resolveclassmethod(c,
 218                                                                            utf_new_char("printStackTrace"),
 219                                                                            utf_new_char("()V"),
 220                                                                            class_java_lang_Object,
 221                                                                            false);
 222
 223                 /* print the stacktrace */
 224                 if (pss) {
 225                         asm_calljavafunction(pss, xptr, NULL, NULL, NULL);
 226
 227                         /* this normally means, we are EXTREMLY out of memory, but may be
 228                            any other exception */
 229                         if (*exceptionptr) {
 230                                 utf_fprint_classname(stderr, c->name);
 231                                 fprintf(stderr, "\n");
 232                         }
 233
 234                 } else {
 235                         utf_fprint_classname(stderr, c->name);
 236                         fprintf(stderr, ": printStackTrace()V not found!\n");
 237                 }
 238
 239                 fflush(stderr);
 240
 241                 /* good bye! */
 242                 if (doexit) {
 243                         exit(1);
 244                 }
 245         }
 246 }
 247
 248
 249 void throw_exception()
 250 {
 251         throw_exception_exit_intern(false);
 252 }
 253
 254
 255 void throw_exception_exit()
 256 {
 257         throw_exception_exit_intern(true);
 258 }
 259
 260
 261 void throw_main_exception()
 262 {
 263         fprintf(stderr, "Exception in thread \"main\" ");
 264         fflush(stderr);
 265
 266         throw_exception_exit_intern(false);
 267 }
 268
 269
 270 void throw_main_exception_exit()
 271 {
 272         fprintf(stderr, "Exception in thread \"main\" ");
 273         fflush(stderr);
 274
 275         throw_exception_exit_intern(true);
 276 }
 277
 278
 279 void throw_cacao_exception_exit(char *exception, char *message)
 280 {
 281         s4 i;
 282         char *tmp;
 283         s4 len;
 284
 285         len = strlen(exception);
 286         tmp = MNEW(char, len+1);
 287         strncpy(tmp, exception, len);
 288         tmp[len]='\0';
 289
 290         /* convert to classname */
 291
 292         for (i = len - 1; i >= 0; i--) {
 293                 if (tmp[i] == '/') tmp[i] = '.';
 294         }
 295
 296         fprintf(stderr, "Exception in thread \"main\" %s", tmp);
 297
 298         MFREE(tmp, char, len);
 299
 300         if (strlen(message) > 0)
 301                 fprintf(stderr, ": %s", message);
 302
 303         fprintf(stderr, "\n");
 304         fflush(stderr);
 305
 306         /* good bye! */
 307         exit(1);
 308 }
 309
 310
 311 #if 1
 312 #define CREATENEW_EXCEPTION(ex) \
 313     return ex;
 314 #else
 315 #define CREATENEW_EXCEPTION(ex) \
 316         java_objectheader *newEx; \
 317         java_objectheader *oldexception=*exceptionptr;\
 318         *exceptionptr=0;\
 319         newEx=ex;\
 320         *exceptionptr=oldexception;\
 321         return newEx;
 322 #endif
 323
 324 java_objectheader *new_exception(char *classname)
 325 {
 326         classinfo *c = class_new(utf_new_char(classname));
 327
 328         CREATENEW_EXCEPTION(native_new_and_init(c));
 329 }
 330
 331 java_objectheader *new_exception_message(char *classname, char *message)
 332 {
 333         classinfo *c = class_new(utf_new_char(classname));
 334
 335         CREATENEW_EXCEPTION(native_new_and_init_string(c, javastring_new_char(message)));
 336 }
 337
 338
 339 java_objectheader *new_exception_throwable(char *classname, java_lang_Throwable *throwable)
 340 {
 341         classinfo *c = class_new(utf_new_char(classname));
 342
 343         CREATENEW_EXCEPTION(native_new_and_init_throwable(c, throwable));
 344 }
 345
 346
 347 java_objectheader *new_exception_utfmessage(char *classname, utf *message)
 348 {
 349         classinfo *c = class_new(utf_new_char(classname));
 350
 351         CREATENEW_EXCEPTION(native_new_and_init_string(c, javastring_new(message)));
 352 }
 353
 354
 355 java_objectheader *new_exception_javastring(char *classname, java_lang_String *message)
 356 {
 357         classinfo *c = class_new(utf_new_char(classname));
 358
 359         CREATENEW_EXCEPTION(native_new_and_init_string(c, message));
 360 }
 361
 362
 363 java_objectheader *new_exception_int(char *classname, s4 i)
 364 {
 365         classinfo *c;
 366
 367         c = class_new(utf_new_char(classname));
 368
 369         CREATENEW_EXCEPTION(native_new_and_init_int(c, i));
 370 }
 371
 372
 373 /* new_classformaterror ********************************************************
 374
 375    generates a java.lang.ClassFormatError for the classloader
 376
 377 *******************************************************************************/
 378
 379 java_objectheader *new_classformaterror(classinfo *c, char *message, ...)
 380 {
 381         char msg[MAXLOGTEXT];
 382         va_list ap;
 383
 384         utf_sprint_classname(msg, c->name);
 385         sprintf(msg + strlen(msg), " (");
 386
 387         va_start(ap, message);
 388         vsprintf(msg + strlen(msg), message, ap);
 389         va_end(ap);
 390
 391         sprintf(msg + strlen(msg), ")");
 392
 393         return new_exception_message(string_java_lang_ClassFormatError, msg);
 394 }
 395
 396
 397 /* new_unsupportedclassversionerror ********************************************
 398
 399    generates a java.lang.UnsupportedClassVersionError for the classloader
 400
 401 *******************************************************************************/
 402
 403 java_objectheader *new_unsupportedclassversionerror(classinfo *c, char *message, ...)
 404 {
 405         char msg[MAXLOGTEXT];
 406         va_list ap;
 407
 408         utf_sprint_classname(msg, c->name);
 409         sprintf(msg + strlen(msg), " (");
 410
 411         va_start(ap, message);
 412         vsprintf(msg + strlen(msg), message, ap);
 413         va_end(ap);
 414
 415         sprintf(msg + strlen(msg), ")");
 416
 417         return new_exception_message(string_java_lang_UnsupportedClassVersionError,
 418                                                                  msg);
 419 }
 420
 421
 422 /* new_verifyerror *************************************************************
 423
 424    generates a java.lang.VerifyError for the jit compiler
 425
 426 *******************************************************************************/
 427
 428 java_objectheader *new_verifyerror(methodinfo *m, char *message)
 429 {
 430         java_objectheader *o;
 431         char *msg;
 432         s4 len;
 433
 434         len = 8 + utf_strlen(m->class->name) +
 435                 10 + utf_strlen(m->name) +
 436                 13 + utf_strlen(m->descriptor) +
 437                 2 + strlen(message) + 1;
 438
 439         msg = MNEW(char, len);
 440
 441         sprintf(msg, "(class: ");
 442         utf_sprint(msg + strlen(msg), m->class->name);
 443         sprintf(msg + strlen(msg), ", method: ");
 444         utf_sprint(msg + strlen(msg), m->name);
 445         sprintf(msg + strlen(msg), ", signature: ");
 446         utf_sprint(msg + strlen(msg), m->descriptor);
 447         sprintf(msg + strlen(msg), ") %s", message);
 448
 449         o = new_exception_message(string_java_lang_VerifyError, msg);
 450
 451         MFREE(msg, u1, len);
 452
 453         return o;
 454 }
 455
 456
 457 /* new_arithmeticexception *****************************************************
 458
 459    generates a java.lang.ArithmeticException for the jit compiler
 460
 461 *******************************************************************************/
 462
 463 java_objectheader *new_arithmeticexception()
 464 {
 465         java_objectheader *e;
 466
 467         e = new_exception_message(string_java_lang_ArithmeticException,
 468                                                           string_java_lang_ArithmeticException_message);
 469
 470         if (!e)
 471                 return *exceptionptr;
 472
 473         return e;
 474 }
 475
 476
 477 /* new_arrayindexoutofboundsexception ******************************************
 478
 479    generates a java.lang.ArrayIndexOutOfBoundsException for the jit compiler
 480
 481 *******************************************************************************/
 482
 483 java_objectheader *new_arrayindexoutofboundsexception(s4 index)
 484 {
 485         java_objectheader *e;
 486         methodinfo *m;
 487         java_lang_String *s;
 488
 489         /* convert the index into a String, like Sun does */
 490
 491         m = class_resolveclassmethod(class_java_lang_String,
 492                                                                  utf_new_char("valueOf"),
 493                                                                  utf_new_char("(I)Ljava/lang/String;"),
 494                                                                  class_java_lang_Object,
 495                                                                  true);
 496
 497         if (!m)
 498                 return *exceptionptr;
 499
 500         s = (java_lang_String *) asm_calljavafunction(m,
 501                                                                                                   (void *) index,
 502                                                                                                   NULL,
 503                                                                                                   NULL,
 504                                                                                                   NULL);
 505
 506         if (!s)
 507                 return *exceptionptr;
 508
 509         e = new_exception_javastring(string_java_lang_ArrayIndexOutOfBoundsException,
 510                                                                  s);
 511
 512         if (!e)
 513                 return *exceptionptr;
 514
 515         return e;
 516 }
 517
 518
 519 /* new_classcastexception ******************************************************
 520
 521    generates a java.lang.ClassCastException for the jit compiler
 522
 523 *******************************************************************************/
 524
 525 java_objectheader *new_classcastexception()
 526 {
 527         java_objectheader *e;
 528
 529         e = new_exception(string_java_lang_ClassCastException);
 530
 531         if (!e)
 532                 return *exceptionptr;
 533
 534         return e;
 535 }
 536
 537
 538 /* new_negativearraysizeexception **********************************************
 539
 540    generates a java.lang.NegativeArraySizeException for the jit compiler
 541
 542 *******************************************************************************/
 543
 544 java_objectheader *new_negativearraysizeexception()
 545 {
 546         java_objectheader *e;
 547
 548         e = new_exception(string_java_lang_NegativeArraySizeException);
 549
 550         if (!e)
 551                 return *exceptionptr;
 552
 553         return e;
 554 }
 555
 556
 557 /* new_nullpointerexception ****************************************************
 558
 559    generates a java.lang.NullPointerException for the jit compiler
 560
 561 *******************************************************************************/
 562
 563 java_objectheader *new_nullpointerexception()
 564 {
 565         java_objectheader *e;
 566
 567         e = new_exception(string_java_lang_NullPointerException);
 568
 569         if (!e)
 570                 return *exceptionptr;
 571
 572         return e;
 573 }
 574
 575
 576 /*
 577  * These are local overrides for various environment variables in Emacs.
 578  * Please do not remove this and leave it at the end of the file, where
 579  * Emacs will automagically detect them.
 580  * ---------------------------------------------------------------------
 581  * Local variables:
 582  * mode: c
 583  * indent-tabs-mode: t
 584  * c-basic-offset: 4
 585  * tab-width: 4
 586  * End:
 587  */