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 1410 2004-08-17 13:01:24Z twisti $
  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);
 287         strncpy(tmp, exception, len);
 288
 289         /* convert to classname */
 290
 291         for (i = len - 1; i >= 0; i--) {
 292                 if (tmp[i] == '/') tmp[i] = '.';
 293         }
 294
 295         fprintf(stderr, "Exception in thread \"main\" %s", tmp);
 296
 297         MFREE(tmp, char, len);
 298
 299         if (strlen(message) > 0)
 300                 fprintf(stderr, ": %s", message);
 301
 302         fprintf(stderr, "\n");
 303         fflush(stderr);
 304
 305         /* good bye! */
 306         exit(1);
 307 }
 308
 309
 310 #if 1
 311 #define CREATENEW_EXCEPTION(ex) \
 312     return ex;
 313 #else
 314 #define CREATENEW_EXCEPTION(ex) \
 315         java_objectheader *newEx; \
 316         java_objectheader *oldexception=*exceptionptr;\
 317         *exceptionptr=0;\
 318         newEx=ex;\
 319         *exceptionptr=oldexception;\
 320         return newEx;
 321 #endif
 322
 323 java_objectheader *new_exception(char *classname)
 324 {
 325         classinfo *c = class_new(utf_new_char(classname));
 326
 327         CREATENEW_EXCEPTION(native_new_and_init(c));
 328 }
 329
 330 java_objectheader *new_exception_message(char *classname, char *message)
 331 {
 332         classinfo *c = class_new(utf_new_char(classname));
 333
 334         CREATENEW_EXCEPTION(native_new_and_init_string(c, javastring_new_char(message)));
 335 }
 336
 337
 338 java_objectheader *new_exception_throwable(char *classname, java_lang_Throwable *throwable)
 339 {
 340         classinfo *c = class_new(utf_new_char(classname));
 341
 342         CREATENEW_EXCEPTION(native_new_and_init_throwable(c, throwable));
 343 }
 344
 345
 346 java_objectheader *new_exception_utfmessage(char *classname, utf *message)
 347 {
 348         classinfo *c = class_new(utf_new_char(classname));
 349
 350         CREATENEW_EXCEPTION(native_new_and_init_string(c, javastring_new(message)));
 351 }
 352
 353
 354 java_objectheader *new_exception_javastring(char *classname, java_lang_String *message)
 355 {
 356         classinfo *c = class_new(utf_new_char(classname));
 357
 358         CREATENEW_EXCEPTION(native_new_and_init_string(c, message));
 359 }
 360
 361
 362 java_objectheader *new_exception_int(char *classname, s4 i)
 363 {
 364         classinfo *c;
 365
 366         c = class_new(utf_new_char(classname));
 367
 368         CREATENEW_EXCEPTION(native_new_and_init_int(c, i));
 369 }
 370
 371
 372 /* new_classformaterror ********************************************************
 373
 374    generates a java.lang.ClassFormatError for the classloader
 375
 376 *******************************************************************************/
 377
 378 java_objectheader *new_classformaterror(classinfo *c, char *message, ...)
 379 {
 380         char msg[MAXLOGTEXT];
 381         va_list ap;
 382
 383         utf_sprint_classname(msg, c->name);
 384         sprintf(msg + strlen(msg), " (");
 385
 386         va_start(ap, message);
 387         vsprintf(msg + strlen(msg), message, ap);
 388         va_end(ap);
 389
 390         sprintf(msg + strlen(msg), ")");
 391
 392         return new_exception_message(string_java_lang_ClassFormatError, msg);
 393 }
 394
 395
 396 /* new_unsupportedclassversionerror ********************************************
 397
 398    generates a java.lang.UnsupportedClassVersionError for the classloader
 399
 400 *******************************************************************************/
 401
 402 java_objectheader *new_unsupportedclassversionerror(classinfo *c, char *message, ...)
 403 {
 404         char msg[MAXLOGTEXT];
 405         va_list ap;
 406
 407         utf_sprint_classname(msg, c->name);
 408         sprintf(msg + strlen(msg), " (");
 409
 410         va_start(ap, message);
 411         vsprintf(msg + strlen(msg), message, ap);
 412         va_end(ap);
 413
 414         sprintf(msg + strlen(msg), ")");
 415
 416         return new_exception_message(string_java_lang_UnsupportedClassVersionError,
 417                                                                  msg);
 418 }
 419
 420
 421 /* new_verifyerror *************************************************************
 422
 423    generates a java.lang.VerifyError for the jit compiler
 424
 425 *******************************************************************************/
 426
 427 java_objectheader *new_verifyerror(methodinfo *m, char *message)
 428 {
 429         java_objectheader *o;
 430         char *msg;
 431         s4 len;
 432
 433         len = 8 + utf_strlen(m->class->name) +
 434                 10 + utf_strlen(m->name) +
 435                 13 + utf_strlen(m->descriptor) +
 436                 2 + strlen(message) + 1;
 437
 438         msg = MNEW(char, len);
 439
 440         sprintf(msg, "(class: ");
 441         utf_sprint(msg + strlen(msg), m->class->name);
 442         sprintf(msg + strlen(msg), ", method: ");
 443         utf_sprint(msg + strlen(msg), m->name);
 444         sprintf(msg + strlen(msg), ", signature: ");
 445         utf_sprint(msg + strlen(msg), m->descriptor);
 446         sprintf(msg + strlen(msg), ") %s", message);
 447
 448         o = new_exception_message(string_java_lang_VerifyError, msg);
 449
 450         MFREE(msg, u1, len);
 451
 452         return o;
 453 }
 454
 455
 456 /* new_arithmeticexception *****************************************************
 457
 458    generates a java.lang.ArithmeticException for the jit compiler
 459
 460 *******************************************************************************/
 461
 462 java_objectheader *new_arithmeticexception()
 463 {
 464         java_objectheader *e;
 465
 466         e = new_exception_message(string_java_lang_ArithmeticException,
 467                                                           string_java_lang_ArithmeticException_message);
 468
 469         if (!e)
 470                 return *exceptionptr;
 471
 472         return e;
 473 }
 474
 475
 476 /* new_arrayindexoutofboundsexception ******************************************
 477
 478    generates a java.lang.ArrayIndexOutOfBoundsException for the jit compiler
 479
 480 *******************************************************************************/
 481
 482 java_objectheader *new_arrayindexoutofboundsexception(s4 index)
 483 {
 484         java_objectheader *e;
 485         methodinfo *m;
 486         java_lang_String *s;
 487
 488         /* convert the index into a String, like Sun does */
 489
 490         m = class_resolveclassmethod(class_java_lang_String,
 491                                                                  utf_new_char("valueOf"),
 492                                                                  utf_new_char("(I)Ljava/lang/String;"),
 493                                                                  class_java_lang_Object,
 494                                                                  true);
 495
 496         if (!m)
 497                 return *exceptionptr;
 498
 499         s = (java_lang_String *) asm_calljavafunction(m,
 500                                                                                                   (void *) index,
 501                                                                                                   NULL,
 502                                                                                                   NULL,
 503                                                                                                   NULL);
 504
 505         if (!s)
 506                 return *exceptionptr;
 507
 508         e = new_exception_javastring(string_java_lang_ArrayIndexOutOfBoundsException,
 509                                                                  s);
 510
 511         if (!e)
 512                 return *exceptionptr;
 513
 514         return e;
 515 }
 516
 517
 518 /* new_classcastexception ******************************************************
 519
 520    generates a java.lang.ClassCastException for the jit compiler
 521
 522 *******************************************************************************/
 523
 524 java_objectheader *new_classcastexception()
 525 {
 526         java_objectheader *e;
 527
 528         e = new_exception(string_java_lang_ClassCastException);
 529
 530         if (!e)
 531                 return *exceptionptr;
 532
 533         return e;
 534 }
 535
 536
 537 /* new_negativearraysizeexception **********************************************
 538
 539    generates a java.lang.NegativeArraySizeException for the jit compiler
 540
 541 *******************************************************************************/
 542
 543 java_objectheader *new_negativearraysizeexception()
 544 {
 545         java_objectheader *e;
 546
 547         e = new_exception(string_java_lang_NegativeArraySizeException);
 548
 549         if (!e)
 550                 return *exceptionptr;
 551
 552         return e;
 553 }
 554
 555
 556 /* new_nullpointerexception ****************************************************
 557
 558    generates a java.lang.NullPointerException for the jit compiler
 559
 560 *******************************************************************************/
 561
 562 java_objectheader *new_nullpointerexception()
 563 {
 564         java_objectheader *e;
 565
 566         e = new_exception(string_java_lang_NullPointerException);
 567
 568         if (!e)
 569                 return *exceptionptr;
 570
 571         return e;
 572 }
 573
 574
 575 /*
 576  * These are local overrides for various environment variables in Emacs.
 577  * Please do not remove this and leave it at the end of the file, where
 578  * Emacs will automagically detect them.
 579  * ---------------------------------------------------------------------
 580  * Local variables:
 581  * mode: c
 582  * indent-tabs-mode: t
 583  * c-basic-offset: 4
 584  * tab-width: 4
 585  * End:
 586  */