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 1332 2004-07-21 15:48:08Z 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_NegativeArraySizeException =
  99     "java/lang/NegativeArraySizeException";
 100
 101 char *string_java_lang_NoSuchFieldException =
 102         "java/lang/NoSuchFieldException";
 103
 104 char *string_java_lang_NoSuchMethodException =
 105         "java/lang/NoSuchMethodException";
 106
 107 char *string_java_lang_NullPointerException =
 108     "java/lang/NullPointerException";
 109
 110
 111 /* specify some error strings for code generation */
 112
 113 char *string_java_lang_AbstractMethodError =
 114     "java/lang/AbstractMethodError";
 115
 116 char *string_java_lang_ClassCircularityError =
 117     "java/lang/ClassCircularityError";
 118
 119 char *string_java_lang_ClassFormatError =
 120     "java/lang/ClassFormatError";
 121
 122 char *string_java_lang_Error =
 123     "java/lang/Error";
 124
 125 char *string_java_lang_ExceptionInInitializerError =
 126     "java/lang/ExceptionInInitializerError";
 127
 128 char *string_java_lang_IncompatibleClassChangeError =
 129     "java/lang/IncompatibleClassChangeError";
 130
 131 char *string_java_lang_InternalError =
 132     "java/lang/InternalError";
 133
 134 char *string_java_lang_LinkageError =
 135     "java/lang/LinkageError";
 136
 137 char *string_java_lang_NoClassDefFoundError =
 138     "java/lang/NoClassDefFoundError";
 139
 140 char *string_java_lang_NoSuchFieldError =
 141         "java/lang/NoSuchFieldError";
 142
 143 char *string_java_lang_NoSuchMethodError =
 144         "java/lang/NoSuchMethodError";
 145
 146 char *string_java_lang_OutOfMemoryError =
 147     "java/lang/OutOfMemoryError";
 148
 149 char *string_java_lang_VerifyError =
 150     "java/lang/VerifyError";
 151
 152 char *string_java_lang_VirtualMachineError =
 153     "java/lang/VirtualMachineError";
 154
 155
 156 /* init_system_exceptions *****************************************************
 157
 158    load, link and compile exceptions used in the system
 159
 160 *******************************************************************************/
 161
 162 void init_system_exceptions()
 163 {
 164         /* java/lang/Throwable */
 165
 166         class_java_lang_Throwable =
 167                 class_new(utf_new_char(string_java_lang_Throwable));
 168         class_load(class_java_lang_Throwable);
 169         class_link(class_java_lang_Throwable);
 170
 171         /* java/lang/Exception */
 172
 173         class_java_lang_Exception =
 174                 class_new(utf_new_char(string_java_lang_Exception));
 175         class_load(class_java_lang_Exception);
 176         class_link(class_java_lang_Exception);
 177
 178         /* java/lang/Error */
 179
 180         class_java_lang_Error =
 181                 class_new(utf_new_char(string_java_lang_Error));
 182         class_load(class_java_lang_Error);
 183         class_link(class_java_lang_Error);
 184
 185         /* java/lang/OutOfMemoryError */
 186
 187         class_java_lang_OutOfMemoryError =
 188                 class_new(utf_new_char(string_java_lang_OutOfMemoryError));
 189         class_load(class_java_lang_OutOfMemoryError);
 190         class_link(class_java_lang_OutOfMemoryError);
 191 }
 192
 193
 194 static void throw_exception_exit_intern(bool doexit)
 195 {
 196         java_objectheader *xptr;
 197         classinfo *c;
 198         methodinfo *pss;
 199
 200         if (*exceptionptr) {
 201                 xptr = *exceptionptr;
 202
 203                 /* clear exception, because we are calling jit code again */
 204                 *exceptionptr = NULL;
 205
 206                 c = xptr->vftbl->class;
 207
 208                 pss = class_resolveclassmethod(c,
 209                                                                            utf_new_char("printStackTrace"),
 210                                                                            utf_new_char("()V"),
 211                                                                            class_java_lang_Object,
 212                                                                            false);
 213
 214                 /* print the stacktrace */
 215                 if (pss) {
 216                         asm_calljavafunction(pss, xptr, NULL, NULL, NULL);
 217
 218                         /* this normally means, we are EXTREMLY out of memory, but may be
 219                            any other exception */
 220                         if (*exceptionptr) {
 221                                 utf_fprint_classname(stderr, c->name);
 222                                 fprintf(stderr, "\n");
 223                         }
 224
 225                 } else {
 226                         utf_fprint_classname(stderr, c->name);
 227                         fprintf(stderr, ": printStackTrace()V not found!\n");
 228                 }
 229
 230                 fflush(stderr);
 231
 232                 /* good bye! */
 233                 if (doexit) {
 234                         exit(1);
 235                 }
 236         }
 237 }
 238
 239
 240 void throw_exception()
 241 {
 242         throw_exception_exit_intern(false);
 243 }
 244
 245
 246 void throw_exception_exit()
 247 {
 248         throw_exception_exit_intern(true);
 249 }
 250
 251
 252 void throw_main_exception()
 253 {
 254         fprintf(stderr, "Exception in thread \"main\" ");
 255         fflush(stderr);
 256
 257         throw_exception_exit_intern(false);
 258 }
 259
 260
 261 void throw_main_exception_exit()
 262 {
 263         fprintf(stderr, "Exception in thread \"main\" ");
 264         fflush(stderr);
 265
 266         throw_exception_exit_intern(true);
 267 }
 268
 269
 270 void throw_cacao_exception_exit(char *exception, char *message)
 271 {
 272         s4 i;
 273         char *tmp;
 274         s4 len;
 275
 276         len = strlen(exception);
 277         tmp = MNEW(char, len);
 278         strncpy(tmp, exception, len);
 279
 280         /* convert to classname */
 281
 282         for (i = len - 1; i >= 0; i--) {
 283                 if (tmp[i] == '/') tmp[i] = '.';
 284         }
 285
 286         fprintf(stderr, "Exception in thread \"main\" %s", tmp);
 287
 288         MFREE(tmp, char, len);
 289
 290         if (strlen(message) > 0)
 291                 fprintf(stderr, ": %s", message);
 292
 293         fprintf(stderr, "\n");
 294         fflush(stderr);
 295
 296         /* good bye! */
 297         exit(1);
 298 }
 299
 300
 301 #define CREATENEW_EXCEPTION(ex) \
 302         java_objectheader *newEx; \
 303         java_objectheader *oldexception=*exceptionptr;\
 304         *exceptionptr=0;\
 305         newEx=ex;\
 306         *exceptionptr=oldexception;\
 307         return newEx;
 308
 309 java_objectheader *new_exception(char *classname)
 310 {
 311         classinfo *c = class_new(utf_new_char(classname));
 312
 313         CREATENEW_EXCEPTION(native_new_and_init(c));
 314 }
 315
 316 java_objectheader *new_exception_message(char *classname, char *message)
 317 {
 318         classinfo *c = class_new(utf_new_char(classname));
 319
 320         CREATENEW_EXCEPTION(native_new_and_init_string(c, javastring_new_char(message)));
 321 }
 322
 323
 324 java_objectheader *new_exception_throwable(char *classname, java_lang_Throwable *throwable)
 325 {
 326         classinfo *c = class_new(utf_new_char(classname));
 327
 328         CREATENEW_EXCEPTION(native_new_and_init_throwable(c, throwable));
 329 }
 330
 331
 332 java_objectheader *new_exception_utfmessage(char *classname, utf *message)
 333 {
 334         classinfo *c = class_new(utf_new_char(classname));
 335
 336         CREATENEW_EXCEPTION(native_new_and_init_string(c, javastring_new(message)));
 337 }
 338
 339
 340 java_objectheader *new_exception_javastring(char *classname, java_lang_String *message)
 341 {
 342         classinfo *c = class_new(utf_new_char(classname));
 343
 344         CREATENEW_EXCEPTION(native_new_and_init_string(c, message));
 345 }
 346
 347
 348 java_objectheader *new_exception_int(char *classname, s4 i)
 349 {
 350         classinfo *c = class_new(utf_new_char(classname));
 351
 352         CREATENEW_EXCEPTION(native_new_and_init_int(c, i));
 353 }
 354
 355
 356 /* new_classformaterror ********************************************************
 357
 358    generates an java.lang.ClassFormatError for the classloader
 359
 360 *******************************************************************************/
 361
 362 java_objectheader *new_classformaterror(classinfo *c, char *message, ...)
 363 {
 364         char msg[MAXLOGTEXT];
 365         va_list ap;
 366
 367         utf_sprint_classname(msg, c->name);
 368         sprintf(msg + strlen(msg), " (");
 369
 370         va_start(ap, message);
 371         vsprintf(msg + strlen(msg), message, ap);
 372         va_end(ap);
 373
 374         sprintf(msg + strlen(msg), ")");
 375
 376         return new_exception_message(string_java_lang_ClassFormatError, msg);
 377 }
 378
 379
 380 /* new_verifyerror *************************************************************
 381
 382    generates an java.lang.VerifyError for the jit compiler
 383
 384 *******************************************************************************/
 385
 386 java_objectheader *new_verifyerror(methodinfo *m, char *message)
 387 {
 388         java_objectheader *o;
 389         char *msg;
 390         s4 len;
 391
 392         len = 8 + utf_strlen(m->class->name) +
 393                 10 + utf_strlen(m->name) +
 394                 13 + utf_strlen(m->descriptor) +
 395                 2 + strlen(message) + 1;
 396
 397         msg = MNEW(char, len);
 398
 399         sprintf(msg, "(class: ");
 400         utf_sprint(msg + strlen(msg), m->class->name);
 401         sprintf(msg + strlen(msg), ", method: ");
 402         utf_sprint(msg + strlen(msg), m->name);
 403         sprintf(msg + strlen(msg), ", signature: ");
 404         utf_sprint(msg + strlen(msg), m->descriptor);
 405         sprintf(msg + strlen(msg), ") %s", message);
 406
 407         o = new_exception_message(string_java_lang_VerifyError, msg);
 408
 409         MFREE(msg, u1, len);
 410
 411         return o;
 412 }
 413
 414
 415 /*
 416  * These are local overrides for various environment variables in Emacs.
 417  * Please do not remove this and leave it at the end of the file, where
 418  * Emacs will automagically detect them.
 419  * ---------------------------------------------------------------------
 420  * Local variables:
 421  * mode: c
 422  * indent-tabs-mode: t
 423  * c-basic-offset: 4
 424  * tab-width: 4
 425  * End:
 426  */