src/cacao/cacao.c

   1 /* main.c **********************************************************************
   2
   3         Copyright (c) 1997 A. Krall, R. Grafl, M. Gschwind, M. Probst
   4
   5         See file COPYRIGHT for information on usage and disclaimer of warranties
   6
   7         Enthaelt die Funktion main() und die Variablen fuer die
   8         globalen Optionen.
   9         Dieser Modul erledigt folgende Aufgaben:
  10            - Bearbeiten der command-line-options
  11            - Aufrufen aller Initialisierungsroutinen
  12            - Aufrufen des Classloaders
  13            - Starten der main - Methode
  14
  15         Authors: Reinhard Grafl      EMAIL: cacao@complang.tuwien.ac.at
  16         Changes: Andi Krall          EMAIL: cacao@complang.tuwien.ac.at
  17                  Mark Probst         EMAIL: cacao@complang.tuwien.ac.at
  18                          Philipp Tomsich     EMAIL: cacao@complang.tuwien.ac.at
  19
  20         Last Change: $Id: cacao.c 136 1999-11-09 11:33:46Z schani $
  21
  22 *******************************************************************************/
  23
  24 #include "global.h"
  25
  26 #include "tables.h"
  27 #include "loader.h"
  28 #include "jit.h"
  29 #ifdef OLD_COMPILER
  30 #include "compiler.h"
  31 #endif
  32
  33 #include "asmpart.h"
  34 #include "builtin.h"
  35 #include "native.h"
  36
  37 #include "threads/thread.h"
  38
  39 bool compileall = false;
  40 int  newcompiler = true;
  41 bool verbose =  false;
  42 #ifdef NEW_GC
  43 bool new_gc = false;
  44 #endif
  45
  46 static bool showmethods = false;
  47 static bool showconstantpool = false;
  48 static bool showutf = false;
  49 static classinfo *topclass;
  50
  51 #ifndef USE_THREADS
  52 void **stackbottom = 0;
  53 #endif
  54
  55
  56 /* internal function: get_opt *************************************************
  57
  58         decodes the next command line option
  59
  60 ******************************************************************************/
  61
  62 #define OPT_DONE  -1
  63 #define OPT_ERROR  0
  64 #define OPT_IGNORE 1
  65
  66 #define OPT_CLASSPATH   2
  67 #define OPT_D           3
  68 #define OPT_MS          4
  69 #define OPT_MX          5
  70 #define OPT_VERBOSE1    6
  71 #define OPT_VERBOSE     7
  72 #define OPT_VERBOSEGC   8
  73 #define OPT_VERBOSECALL 9
  74 #define OPT_IEEE        10
  75 #define OPT_SOFTNULL    11
  76 #define OPT_TIME        12
  77 #define OPT_STAT        13
  78 #define OPT_LOG         14
  79 #define OPT_CHECK       15
  80 #define OPT_LOAD        16
  81 #define OPT_METHOD      17
  82 #define OPT_SIGNATURE   18
  83 #define OPT_SHOW        19
  84 #define OPT_ALL         20
  85 #ifdef OLD_COMPILER
  86 #define OPT_OLD         21
  87 #endif
  88 #ifdef NEW_GC
  89 #define OPT_GC1         22
  90 #define OPT_GC2         23
  91 #endif
  92 #define OPT_OLOOP       24
  93
  94 struct {char *name; bool arg; int value;} opts[] = {
  95         {"classpath",   true,   OPT_CLASSPATH},
  96         {"D",           true,   OPT_D},
  97         {"ms",          true,   OPT_MS},
  98         {"mx",          true,   OPT_MX},
  99         {"noasyncgc",   false,  OPT_IGNORE},
 100         {"noverify",    false,  OPT_IGNORE},
 101         {"oss",         true,   OPT_IGNORE},
 102         {"ss",          true,   OPT_IGNORE},
 103         {"v",           false,  OPT_VERBOSE1},
 104         {"verbose",     false,  OPT_VERBOSE},
 105         {"verbosegc",   false,  OPT_VERBOSEGC},
 106         {"verbosecall", false,  OPT_VERBOSECALL},
 107         {"ieee",        false,  OPT_IEEE},
 108         {"softnull",    false,  OPT_SOFTNULL},
 109         {"time",        false,  OPT_TIME},
 110         {"stat",        false,  OPT_STAT},
 111         {"log",         true,   OPT_LOG},
 112         {"c",           true,   OPT_CHECK},
 113         {"l",           false,  OPT_LOAD},
 114         {"m",           true,   OPT_METHOD},
 115         {"sig",         true,   OPT_SIGNATURE},
 116         {"s",           true,   OPT_SHOW},
 117         {"all",         false,  OPT_ALL},
 118 #ifdef OLD_COMPILER
 119         {"old",         false,  OPT_OLD},
 120 #endif
 121 #ifdef NEW_GC
 122         {"gc1",         false,  OPT_GC1},
 123         {"gc2",         false,  OPT_GC2},
 124 #endif
 125         {"oloop",       false,  OPT_OLOOP},
 126         {NULL,  false, 0}
 127 };
 128
 129 static int opt_ind = 1;
 130 static char *opt_arg;
 131
 132 static int get_opt (int argc, char **argv)
 133 {
 134         char *a;
 135         int i;
 136
 137         if (opt_ind >= argc) return OPT_DONE;
 138
 139         a = argv[opt_ind];
 140         if (a[0] != '-') return OPT_DONE;
 141
 142         for (i=0; opts[i].name; i++) {
 143                 if (! opts[i].arg) {
 144                         if (strcmp(a+1, opts[i].name) == 0) {  /* boolean option found */
 145                                 opt_ind++;
 146                                 return opts[i].value;
 147                         }
 148                 }
 149                 else {
 150                         if (strcmp(a+1, opts[i].name) == 0) { /* parameter option found */
 151                                 opt_ind++;
 152                                 if (opt_ind < argc) {
 153                                         opt_arg = argv[opt_ind];
 154                                         opt_ind++;
 155                                         return opts[i].value;
 156                                 }
 157                                 return OPT_ERROR;
 158                         }
 159                         else {
 160                                 size_t l = strlen(opts[i].name);
 161                                 if (strlen(a+1) > l) {
 162                                         if (memcmp (a+1, opts[i].name, l)==0) {
 163                                                 opt_ind++;
 164                                                 opt_arg = a+1+l;
 165                                                 return opts[i].value;
 166                                         }
 167                                 }
 168                         }
 169                 }
 170         } /* end for */
 171
 172         return OPT_ERROR;
 173 }
 174
 175
 176
 177
 178 /******************** interne Funktion: print_usage ************************
 179
 180 Gibt die richtige Aufrufsyntax des JavaVM-Compilers auf stdout aus.
 181
 182 ***************************************************************************/
 183
 184 static void print_usage()
 185 {
 186         printf ("USAGE: cacao [options] classname [program arguments\n");
 187         printf ("Options:\n");
 188         printf ("          -classpath path ...... specify a path to look for classes\n");
 189         printf ("          -Dpropertyname=value . add an entry to the property list\n");
 190         printf ("          -mx maxmem[k|m] ...... specify the size for the heap\n");
 191         printf ("          -ms initmem[k|m] ..... specify the initial size for the heap\n");
 192         printf ("          -v ................... write state-information\n");
 193         printf ("          -verbose ............. write more information\n");
 194         printf ("          -verbosegc ........... write message for each GC\n");
 195         printf ("          -verbosecall ......... write message for each call\n");
 196         printf ("          -ieee ................ use ieee compliant arithmetic\n");
 197         printf ("          -softnull ............ use software nullpointer check\n");
 198         printf ("          -time ................ measure the runtime\n");
 199         printf ("          -stat ................ detailed compiler statistics\n");
 200         printf ("          -log logfile ......... specify a name for the logfile\n");
 201         printf ("          -c(heck)b(ounds) ..... don't check array bounds\n");
 202         printf ("                  s(ync) ....... don't check for synchronization\n");
 203         printf ("          -oloop ............... optimize array accesses in loops\n");
 204         printf ("          -l ................... don't start the class after loading\n");
 205         printf ("          -all ................. compile all methods, no execution\n");
 206 #ifdef OLD_COMPILER
 207         printf ("          -old ................. use old JIT compiler\n");
 208 #endif
 209 #if 0
 210         printf ("          -gc1 ................. use the old garbage collector (default)\n");
 211         printf ("          -gc2 ................. use the new garbage collector\n");
 212 #endif
 213         printf ("          -m ................... compile only a specific method\n");
 214         printf ("          -sig ................. specify signature for a specific method\n");
 215         printf ("          -s(how)a(ssembler) ... show disassembled listing\n");
 216         printf ("                 c(onstants) ... show the constant pool\n");
 217         printf ("                 d(atasegment).. show data segment listing\n");
 218         printf ("                 i(ntermediate). show intermediate representation\n");
 219         printf ("                 m(ethods)...... show class fields and methods\n");
 220 #ifdef OLD_COMPILER
 221         printf ("                 s(tack) ....... show stack for every javaVM-command\n");
 222 #endif
 223         printf ("                 u(tf) ......... show the utf - hash\n");
 224 }
 225
 226
 227
 228 /***************************** Funktion: print_times *********************
 229
 230         gibt eine Aufstellung der verwendeten CPU-Zeit aus
 231
 232 **************************************************************************/
 233
 234 static void print_times()
 235 {
 236         long int totaltime = getcputime();
 237         long int runtime = totaltime - loadingtime - compilingtime;
 238
 239         sprintf (logtext, "Time for loading classes: %ld secs, %ld millis",
 240              loadingtime / 1000000, (loadingtime % 1000000) / 1000);
 241         dolog();
 242         sprintf (logtext, "Time for compiling code:  %ld secs, %ld millis",
 243              compilingtime / 1000000, (compilingtime % 1000000) / 1000);
 244         dolog();
 245         sprintf (logtext, "Time for running program: %ld secs, %ld millis",
 246              runtime / 1000000, (runtime % 1000000) / 1000);
 247         dolog();
 248         sprintf (logtext, "Total time: %ld secs, %ld millis",
 249              totaltime / 1000000, (totaltime % 1000000) / 1000);
 250         dolog();
 251 }
 252
 253
 254
 255
 256
 257
 258 /***************************** Funktion: print_stats *********************
 259
 260         outputs detailed compiler statistics
 261
 262 **************************************************************************/
 263
 264 static void print_stats()
 265 {
 266         sprintf (logtext, "Number of JitCompiler Calls: %d", count_jit_calls);
 267         dolog();
 268         sprintf (logtext, "Number of compiled Methods: %d", count_methods);
 269         dolog();
 270         sprintf (logtext, "Number of max basic blocks per method: %d", count_max_basic_blocks);
 271         dolog();
 272         sprintf (logtext, "Number of compiled basic blocks: %d", count_basic_blocks);
 273         dolog();
 274         sprintf (logtext, "Number of max JavaVM-Instructions per method: %d", count_max_javainstr);
 275         dolog();
 276         sprintf (logtext, "Number of compiled JavaVM-Instructions: %d", count_javainstr);
 277         dolog();
 278         sprintf (logtext, "Size of compiled JavaVM-Instructions:   %d(%d)", count_javacodesize,
 279                                                       count_javacodesize - count_methods * 18);
 280         dolog();
 281         sprintf (logtext, "Size of compiled Exception Tables:      %d", count_javaexcsize);
 282         dolog();
 283         sprintf (logtext, "Value of extended instruction set var:  %d", has_ext_instr_set);
 284         dolog();
 285         sprintf (logtext, "Number of Alpha-Instructions: %d", count_code_len >> 2);
 286         dolog();
 287         sprintf (logtext, "Number of Spills: %d", count_spills);
 288         dolog();
 289         sprintf (logtext, "Number of Activ    Pseudocommands: %5d", count_pcmd_activ);
 290         dolog();
 291         sprintf (logtext, "Number of Drop     Pseudocommands: %5d", count_pcmd_drop);
 292         dolog();
 293         sprintf (logtext, "Number of Const    Pseudocommands: %5d (zero:%5d)", count_pcmd_load, count_pcmd_zero);
 294         dolog();
 295         sprintf (logtext, "Number of ConstAlu Pseudocommands: %5d (cmp: %5d, store:%5d)", count_pcmd_const_alu, count_pcmd_const_bra, count_pcmd_const_store);
 296         dolog();
 297         sprintf (logtext, "Number of Move     Pseudocommands: %5d", count_pcmd_move);
 298         dolog();
 299         sprintf (logtext, "Number of Load     Pseudocommands: %5d", count_load_instruction);
 300         dolog();
 301         sprintf (logtext, "Number of Store    Pseudocommands: %5d (combined: %5d)", count_pcmd_store, count_pcmd_store - count_pcmd_store_comb);
 302         dolog();
 303         sprintf (logtext, "Number of OP       Pseudocommands: %5d", count_pcmd_op);
 304         dolog();
 305         sprintf (logtext, "Number of DUP      Pseudocommands: %5d", count_dup_instruction);
 306         dolog();
 307         sprintf (logtext, "Number of Mem      Pseudocommands: %5d", count_pcmd_mem);
 308         dolog();
 309         sprintf (logtext, "Number of Method   Pseudocommands: %5d", count_pcmd_met);
 310         dolog();
 311         sprintf (logtext, "Number of Branch   Pseudocommands: %5d (rets:%5d, Xrets: %5d)",
 312                           count_pcmd_bra, count_pcmd_return, count_pcmd_returnx);
 313         dolog();
 314         sprintf (logtext, "Number of Table    Pseudocommands: %5d", count_pcmd_table);
 315         dolog();
 316         sprintf (logtext, "Number of Useful   Pseudocommands: %5d", count_pcmd_table +
 317                  count_pcmd_bra + count_pcmd_load + count_pcmd_mem + count_pcmd_op);
 318         dolog();
 319         sprintf (logtext, "Number of Null Pointer Checks:     %5d", count_check_null);
 320         dolog();
 321         sprintf (logtext, "Number of Array Bound Checks:      %5d", count_check_bound);
 322         dolog();
 323         sprintf (logtext, "Number of Try-Blocks: %d", count_tryblocks);
 324         dolog();
 325         sprintf (logtext, "Maximal count of stack elements:   %d", count_max_new_stack);
 326         dolog();
 327         sprintf (logtext, "Upper bound of max stack elements: %d", count_upper_bound_new_stack);
 328         dolog();
 329         sprintf (logtext, "Distribution of stack sizes at block boundary");
 330         dolog();
 331         sprintf (logtext, "    0    1    2    3    4    5    6    7    8    9    >=10");
 332         dolog();
 333         sprintf (logtext, "%5d%5d%5d%5d%5d%5d%5d%5d%5d%5d%5d", count_block_stack[0],
 334                 count_block_stack[1],count_block_stack[2],count_block_stack[3],count_block_stack[4],
 335                 count_block_stack[5],count_block_stack[6],count_block_stack[7],count_block_stack[8],
 336                 count_block_stack[9],count_block_stack[10]);
 337         dolog();
 338         sprintf (logtext, "Distribution of store stack depth");
 339         dolog();
 340         sprintf (logtext, "    0    1    2    3    4    5    6    7    8    9    >=10");
 341         dolog();
 342         sprintf (logtext, "%5d%5d%5d%5d%5d%5d%5d%5d%5d%5d%5d", count_store_depth[0],
 343                 count_store_depth[1],count_store_depth[2],count_store_depth[3],count_store_depth[4],
 344                 count_store_depth[5],count_store_depth[6],count_store_depth[7],count_store_depth[8],
 345                 count_store_depth[9],count_store_depth[10]);
 346         dolog();
 347         sprintf (logtext, "Distribution of store creator chains first part");
 348         dolog();
 349         sprintf (logtext, "    0    1    2    3    4    5    6    7    8    9  ");
 350         dolog();
 351         sprintf (logtext, "%5d%5d%5d%5d%5d%5d%5d%5d%5d%5d", count_store_length[0],
 352                 count_store_length[1],count_store_length[2],count_store_length[3],count_store_length[4],
 353                 count_store_length[5],count_store_length[6],count_store_length[7],count_store_length[8],
 354                 count_store_length[9]);
 355         dolog();
 356         sprintf (logtext, "Distribution of store creator chains second part");
 357         dolog();
 358         sprintf (logtext, "   10   11   12   13   14   15   16   17   18   19  >=20");
 359         dolog();
 360         sprintf (logtext, "%5d%5d%5d%5d%5d%5d%5d%5d%5d%5d%5d", count_store_length[10],
 361                 count_store_length[11],count_store_length[12],count_store_length[13],count_store_length[14],
 362                 count_store_length[15],count_store_length[16],count_store_length[17],count_store_length[18],
 363                 count_store_length[19],count_store_length[20]);
 364         dolog();
 365         sprintf (logtext, "Distribution of analysis iterations");
 366         dolog();
 367         sprintf (logtext, "    1    2    3    4    >=5");
 368         dolog();
 369         sprintf (logtext, "%5d%5d%5d%5d%5d", count_analyse_iterations[0],count_analyse_iterations[1],
 370                 count_analyse_iterations[2],count_analyse_iterations[3],count_analyse_iterations[4]);
 371         dolog();
 372         sprintf (logtext, "Distribution of basic blocks per method");
 373         dolog();
 374         sprintf (logtext, " <= 5 <=10 <=15 <=20 <=30 <=40 <=50 <=75  >75");
 375         dolog();
 376         sprintf (logtext, "%5d%5d%5d%5d%5d%5d%5d%5d%5d", count_method_bb_distribution[0],
 377                 count_method_bb_distribution[1],count_method_bb_distribution[2],count_method_bb_distribution[3],
 378                 count_method_bb_distribution[4],count_method_bb_distribution[5],count_method_bb_distribution[6],
 379                 count_method_bb_distribution[7],count_method_bb_distribution[8]);
 380         dolog();
 381         sprintf (logtext, "Distribution of basic block sizes");
 382         dolog();
 383         sprintf (logtext,
 384         "  0    1    2    3    4   5   6   7   8   9 <13 <15 <17 <19 <21 <26 <31 >30");
 385         dolog();
 386         sprintf (logtext, "%3d%5d%5d%5d%4d%4d%4d%4d%4d%4d%4d%4d%4d%4d%4d%4d%4d%4d",
 387                 count_block_size_distribution[0], count_block_size_distribution[1], count_block_size_distribution[2],
 388                 count_block_size_distribution[3], count_block_size_distribution[4], count_block_size_distribution[5],
 389                 count_block_size_distribution[6], count_block_size_distribution[7], count_block_size_distribution[8],
 390                 count_block_size_distribution[9], count_block_size_distribution[10],count_block_size_distribution[11],
 391                 count_block_size_distribution[12],count_block_size_distribution[13],count_block_size_distribution[14],
 392                 count_block_size_distribution[15],count_block_size_distribution[16],count_block_size_distribution[17]);
 393         dolog();
 394         sprintf (logtext, "Size of Code Area (Kb):  %10.3f", (float) count_code_len / 1024);
 395         dolog();
 396         sprintf (logtext, "Size of data Area (Kb):  %10.3f", (float) count_data_len / 1024);
 397         dolog();
 398         sprintf (logtext, "Size of Class Infos (Kb):%10.3f", (float) (count_class_infos) / 1024);
 399         dolog();
 400         sprintf (logtext, "Size of Const Pool (Kb): %10.3f", (float) (count_const_pool_len + count_utf_len) / 1024);
 401         dolog();
 402         sprintf (logtext, "Size of Vftbl (Kb):      %10.3f", (float) count_vftbl_len / 1024);
 403         dolog();
 404         sprintf (logtext, "Size of comp stub (Kb):  %10.3f", (float) count_cstub_len / 1024);
 405         dolog();
 406         sprintf (logtext, "Size of native stub (Kb):%10.3f", (float) count_nstub_len / 1024);
 407         dolog();
 408         sprintf (logtext, "Size of Utf (Kb):        %10.3f", (float) count_utf_len / 1024);
 409         dolog();
 410         sprintf (logtext, "Size of VMCode (Kb):     %10.3f(%d)", (float) count_vmcode_len / 1024,
 411                                                       count_vmcode_len - 18 * count_all_methods);
 412         dolog();
 413         sprintf (logtext, "Size of ExTable (Kb):    %10.3f", (float) count_extable_len / 1024);
 414         dolog();
 415         sprintf (logtext, "Number of loaded Methods: %d\n\n", count_all_methods);
 416         dolog();
 417
 418         sprintf (logtext, "Calls of utf_new: %22d", count_utf_new);
 419         dolog();
 420         sprintf (logtext, "Calls of utf_new (element found): %6d\n\n", count_utf_new_found);
 421         dolog();
 422 }
 423
 424
 425 /********** Funktion: class_compile_methods   (nur f"ur Debug-Zwecke) ********/
 426
 427 void class_compile_methods ()
 428 {
 429         int        i;
 430         classinfo  *c;
 431         methodinfo *m;
 432
 433         c = list_first (&linkedclasses);
 434         while (c) {
 435                 for (i = 0; i < c -> methodscount; i++) {
 436                         m = &(c->methods[i]);
 437                         if (m->jcode) {
 438 #ifdef OLD_COMPILER
 439                                 if (newcompiler)
 440 #endif
 441                                         (void) jit_compile(m);
 442 #ifdef OLD_COMPILER
 443                                 else
 444                                         (void) compiler_compile(m);
 445 #endif
 446                                 }
 447                         }
 448                 c = list_next (&linkedclasses, c);
 449                 }
 450 }
 451
 452 /*
 453  * void exit_handler(void)
 454  * -----------------------
 455  * The exit_handler function is called upon program termination to shutdown
 456  * the various subsystems and release the resources allocated to the VM.
 457  */
 458
 459 void exit_handler(void)
 460 {
 461         /********************* Debug-Tabellen ausgeben ************************/
 462
 463         if (showmethods) class_showmethods (topclass);
 464         if (showconstantpool)  class_showconstantpool (topclass);
 465         if (showutf)           utf_show ();
 466
 467 #ifdef USE_THREADS
 468         clear_thread_flags();           /* restores standard file descriptor
 469                                                                    flags */
 470 #endif
 471
 472         /************************ Freigeben aller Resourcen *******************/
 473
 474         heap_close ();                          /* must be called before compiler_close and
 475                                                                    loader_close because finalization occurs
 476                                                                    here */
 477
 478 #ifdef OLD_COMPILER
 479         compiler_close ();
 480 #endif
 481         loader_close ();
 482         tables_close ( literalstring_free );
 483
 484         if (verbose || getcompilingtime || statistics) {
 485                 log_text ("CACAO terminated");
 486                 if (statistics)
 487                         print_stats ();
 488                 if (getcompilingtime)
 489                         print_times ();
 490                 mem_usagelog(1);
 491         }
 492 }
 493
 494 /************************** Funktion: main *******************************
 495
 496    Das Hauptprogramm.
 497    Wird vom System zu Programstart aufgerufen (eh klar).
 498
 499 **************************************************************************/
 500
 501 int main(int argc, char **argv)
 502 {
 503         s4 i,j;
 504         char *cp;
 505         java_objectheader *exceptionptr;
 506         void *dummy;
 507
 508         /********** interne (nur fuer main relevante Optionen) **************/
 509
 510         char logfilename[200] = "";
 511         u4 heapsize = 16000000;
 512         u4 heapstartsize = 200000;
 513         char classpath[500] = ".:/usr/local/lib/java/classes";
 514         bool startit = true;
 515         char *specificmethodname = NULL;
 516         char *specificsignature = NULL;
 517
 518 #ifndef USE_THREADS
 519         stackbottom = &dummy;
 520 #endif
 521
 522         if (0 != atexit(exit_handler))
 523                 panic("unable to register exit_handler");
 524
 525         /************ Infos aus der Environment lesen ************************/
 526
 527         cp = getenv ("CLASSPATH");
 528         if (cp) {
 529                 strcpy (classpath, cp);
 530         }
 531
 532         /***************** Interpretieren der Kommandozeile *****************/
 533
 534         checknull = false;
 535         checkfloats = false;
 536
 537         while ( (i = get_opt(argc,argv)) != OPT_DONE) {
 538
 539                 switch (i) {
 540                 case OPT_IGNORE: break;
 541
 542                 case OPT_CLASSPATH:
 543                         strcpy (classpath + strlen(classpath), ":");
 544                         strcpy (classpath + strlen(classpath), opt_arg);
 545                         break;
 546
 547                 case OPT_D:
 548                         {
 549                                 int n,l=strlen(opt_arg);
 550                                 for (n=0; n<l; n++) {
 551                                         if (opt_arg[n]=='=') {
 552                                                 opt_arg[n] = '\0';
 553                                                 attach_property (opt_arg, opt_arg+n+1);
 554                                                 goto didit;
 555                                         }
 556                                 }
 557                                 print_usage();
 558                                 exit(10);
 559
 560                         didit: ;
 561                         }
 562                 break;
 563
 564                 case OPT_MS:
 565                 case OPT_MX:
 566                         if (opt_arg[strlen(opt_arg)-1] == 'k') {
 567                                 j = 1024 * atoi(opt_arg);
 568                         }
 569                         else if (opt_arg[strlen(opt_arg)-1] == 'm') {
 570                                 j = 1024 * 1024 * atoi(opt_arg);
 571                         }
 572                         else j = atoi(opt_arg);
 573
 574                         if (i==OPT_MX) heapsize = j;
 575                         else heapstartsize = j;
 576                         break;
 577
 578                 case OPT_VERBOSE1:
 579                         verbose = true;
 580                         break;
 581
 582                 case OPT_VERBOSE:
 583                         verbose = true;
 584                         loadverbose = true;
 585                         initverbose = true;
 586                         compileverbose = true;
 587                         break;
 588
 589                 case OPT_VERBOSEGC:
 590                         collectverbose = true;
 591                         break;
 592
 593                 case OPT_VERBOSECALL:
 594                         runverbose = true;
 595                         break;
 596
 597                 case OPT_IEEE:
 598                         checkfloats = true;
 599                         break;
 600
 601                 case OPT_SOFTNULL:
 602                         checknull = true;
 603                         break;
 604
 605                 case OPT_TIME:
 606                         getcompilingtime = true;
 607                         getloadingtime = true;
 608                         break;
 609
 610                 case OPT_STAT:
 611                         statistics = true;
 612                         break;
 613
 614                 case OPT_LOG:
 615                         strcpy (logfilename, opt_arg);
 616                         break;
 617
 618
 619                 case OPT_CHECK:
 620                         for (j=0; j<strlen(opt_arg); j++) {
 621                                 switch (opt_arg[j]) {
 622                                 case 'b': checkbounds=false; break;
 623                                 case 's': checksync=false; break;
 624                                 default:  print_usage();
 625                                         exit(10);
 626                                 }
 627                         }
 628                         break;
 629
 630                 case OPT_LOAD:
 631                         startit = false;
 632                         makeinitializations = false;
 633                         break;
 634
 635                 case OPT_METHOD:
 636                         startit = false;
 637                         specificmethodname = opt_arg;
 638                         makeinitializations = false;
 639                         break;
 640
 641                 case OPT_SIGNATURE:
 642                         specificsignature = opt_arg;
 643                         break;
 644
 645                 case OPT_ALL:
 646                         compileall = true;
 647                         startit = false;
 648                         makeinitializations = false;
 649                         break;
 650
 651 #ifdef OLD_COMPILER
 652                 case OPT_OLD:
 653                         newcompiler = false;
 654                         checknull = true;
 655                         break;
 656 #endif
 657
 658 #ifdef NEW_GC
 659                 case OPT_GC2:
 660                         new_gc = true;
 661                         break;
 662
 663                 case OPT_GC1:
 664                         new_gc = false;
 665                         break;
 666 #endif
 667
 668                 case OPT_SHOW:       /* Anzeigeoptionen */
 669                         for (j=0; j<strlen(opt_arg); j++) {
 670                                 switch (opt_arg[j]) {
 671                                 case 'a':  showdisassemble=true; compileverbose=true; break;
 672                                 case 'c':  showconstantpool=true; break;
 673                                 case 'd':  showddatasegment=true; break;
 674                                 case 'i':  showintermediate=true; compileverbose=true; break;
 675                                 case 'm':  showmethods=true; break;
 676 #ifdef OLD_COMPILER
 677                                 case 's':  showstack=true; compileverbose=true; break;
 678 #endif
 679                                 case 'u':  showutf=true; break;
 680                                 default:   print_usage();
 681                                         exit(10);
 682                                 }
 683                         }
 684                         break;
 685
 686                 case OPT_OLOOP:
 687                         opt_loops = true;
 688                         break;
 689
 690                 default:
 691                         print_usage();
 692                         exit(10);
 693                 }
 694
 695
 696         }
 697
 698
 699         if (opt_ind >= argc) {
 700                 print_usage ();
 701                 exit(10);
 702         }
 703
 704
 705         /**************************** Programmstart *****************************/
 706
 707         log_init (logfilename);
 708         if (verbose) {
 709                 log_text (
 710                                   "CACAO started -------------------------------------------------------");
 711         }
 712
 713         suck_init (classpath);
 714         native_setclasspath (classpath);
 715
 716         tables_init();
 717         heap_init(heapsize, heapstartsize, &dummy);
 718         loader_init();
 719 #ifdef OLD_COMPILER
 720         compiler_init();
 721 #endif
 722         jit_init();
 723
 724         native_loadclasses ();
 725
 726
 727         /*********************** JAVA-Klassen laden  ***************************/
 728
 729         cp = argv[opt_ind++];
 730         for (i=strlen(cp)-1; i>=0; i--) {     /* Punkte im Klassennamen */
 731                 if (cp[i]=='.') cp[i]='/';        /* auf slashes umbauen */
 732         }
 733
 734         topclass = loader_load ( utf_new_char (cp) );
 735
 736         gc_init();
 737
 738 #ifdef USE_THREADS
 739         initThreads((u1*)&dummy);                   /* schani */
 740 #endif
 741
 742         /************************* Arbeitsroutinen starten ********************/
 743
 744         if (startit) {
 745                 methodinfo *mainmethod;
 746                 java_objectarray *a;
 747
 748                 heap_addreference((void**) &a);
 749
 750                 mainmethod = class_findmethod (
 751                                                                            topclass,
 752                                                                            utf_new_char ("main"),
 753                                                                            utf_new_char ("([Ljava/lang/String;)V")
 754                                                                            );
 755                 if (!mainmethod) panic ("Can not find method 'void main(String[])'");
 756                 if ((mainmethod->flags & ACC_STATIC) != ACC_STATIC) panic ("main is not static!");
 757
 758                 a = builtin_anewarray (argc - opt_ind, class_java_lang_String);
 759                 for (i=opt_ind; i<argc; i++) {
 760                         a->data[i-opt_ind] = javastring_new (utf_new_char (argv[i]) );
 761                 }
 762                 exceptionptr = asm_calljavamethod (mainmethod, a, NULL,NULL,NULL );
 763
 764                 if (exceptionptr) {
 765                         printf ("#### Program has thrown: ");
 766                         utf_display (exceptionptr->vftbl->class->name);
 767                         printf ("\n");
 768                 }
 769
 770 #ifdef USE_THREADS
 771                 killThread(currentThread);
 772 #endif
 773                 fprintf(stderr, "still here\n");
 774         }
 775
 776         /************* Auf Wunsch alle Methode "ubersetzen ********************/
 777
 778         if (compileall) {
 779                 class_compile_methods();
 780         }
 781
 782
 783         /******** Auf Wunsch eine spezielle Methode "ubersetzen ***************/
 784
 785         if (specificmethodname) {
 786                 methodinfo *m;
 787                 if (specificsignature)
 788                         m = class_findmethod(topclass,
 789                                                                  utf_new_char(specificmethodname),
 790                                                                  utf_new_char(specificsignature));
 791                 else
 792                         m = class_findmethod(topclass,
 793                                                                  utf_new_char(specificmethodname), NULL);
 794                 if (!m) panic ("Specific method not found");
 795 #ifdef OLD_COMPILER
 796                 if (newcompiler)
 797 #endif
 798                         (void) jit_compile(m);
 799 #ifdef OLD_COMPILER
 800                 else
 801                         (void) compiler_compile(m);
 802 #endif
 803         }
 804
 805         exit(0);
 806 }
 807
 808
 809
 810 /************************************ SHUTDOWN-Funktion *********************************
 811
 812         Terminiert das System augenblicklich, ohne den Speicher
 813         explizit freizugeben (eigentlich nur f"ur abnorme
 814         Programmterminierung)
 815
 816 *****************************************************************************************/
 817
 818 void cacao_shutdown(s4 status)
 819 {
 820         if (verbose || getcompilingtime || statistics) {
 821                 log_text ("CACAO terminated by shutdown");
 822                 if (statistics)
 823                         print_stats ();
 824                 if (getcompilingtime)
 825                         print_times ();
 826                 mem_usagelog(0);
 827                 sprintf (logtext, "Exit status: %d\n", (int) status);
 828                 dolog();
 829                 }
 830
 831         exit(status);
 832 }
 833
 834
 835 /*
 836  * These are local overrides for various environment variables in Emacs.
 837  * Please do not remove this and leave it at the end of the file, where
 838  * Emacs will automagically detect them.
 839  * ---------------------------------------------------------------------
 840  * Local variables:
 841  * mode: c
 842  * indent-tabs-mode: t
 843  * c-basic-offset: 4
 844  * tab-width: 4
 845  * End:
 846  */