src/vm/options.c

   1 /* src/vm/options.c - contains global options
   2
   3    Copyright (C) 1996-2005, 2006, 2007, 2008
   4    CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
   5
   6    This file is part of CACAO.
   7
   8    This program is free software; you can redistribute it and/or
   9    modify it under the terms of the GNU General Public License as
  10    published by the Free Software Foundation; either version 2, or (at
  11    your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful, but
  14    WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16    General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  21    02110-1301, USA.
  22
  23 */
  24
  25
  26 #include "config.h"
  27
  28 #include <limits.h>
  29 #include <stdint.h>
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32
  33 #include "mm/memory.h"
  34
  35 #include "vm/options.h"
  36 #include "vm/os.hpp"
  37 #include "vm/vm.hpp"
  38
  39
  40 /* command line option ********************************************************/
  41
  42 s4    opt_index = 0;            /* index of processed arguments               */
  43 char *opt_arg;                  /* this one exports the option argument       */
  44
  45 bool opt_foo = false;           /* option for development                     */
  46
  47 bool opt_jar = false;
  48
  49 #if defined(ENABLE_JIT)
  50 bool opt_jit = true;            /* JIT mode execution (default)               */
  51 bool opt_intrp = false;         /* interpreter mode execution                 */
  52 #else
  53 bool opt_jit = false;           /* JIT mode execution                         */
  54 bool opt_intrp = true;          /* interpreter mode execution (default)       */
  55 #endif
  56
  57 bool opt_run = true;
  58
  59 s4   opt_heapmaxsize   = 0;     /* maximum heap size                          */
  60 s4   opt_heapstartsize = 0;     /* initial heap size                          */
  61 s4   opt_stacksize     = 0;     /* thread stack size                          */
  62
  63 bool opt_verbose = false;
  64 bool opt_debugcolor = false;    /* use ANSI terminal sequences                */
  65 bool compileall = false;
  66
  67 bool loadverbose = false;
  68 bool initverbose = false;
  69
  70 bool opt_verboseclass     = false;
  71 bool opt_verbosegc        = false;
  72 bool opt_verbosejni       = false;
  73 bool opt_verbosecall      = false;      /* trace all method invocation        */
  74
  75 bool showmethods = false;
  76 bool showconstantpool = false;
  77 bool showutf = false;
  78
  79 char *opt_method = NULL;
  80 char *opt_signature = NULL;
  81
  82 bool compileverbose =  false;           /* trace compiler actions             */
  83 bool showstack = false;
  84
  85 bool opt_showdisassemble    = false;    /* generate disassembler listing      */
  86 bool opt_showddatasegment   = false;    /* generate data segment listing      */
  87 bool opt_showintermediate   = false;    /* generate intermediate code listing */
  88
  89 bool checkbounds = true;       /* check array bounds                         */
  90 bool checksync = true;         /* do synchronization                         */
  91 #if defined(ENABLE_LOOP)
  92 bool opt_loops = false;        /* optimize array accesses in loops           */
  93 #endif
  94
  95 bool makeinitializations = true;
  96
  97 #if defined(ENABLE_STATISTICS)
  98 bool opt_stat    = false;
  99 bool opt_getloadingtime = false;   /* to measure the runtime                 */
 100 bool opt_getcompilingtime = false; /* compute compile time                   */
 101 #endif
 102 #if defined(ENABLE_VERIFIER)
 103 bool opt_verify  = true;       /* true if classfiles should be verified      */
 104 #endif
 105
 106 #if defined(ENABLE_PROFILING)
 107 bool opt_prof    = false;
 108 bool opt_prof_bb = false;
 109 #endif
 110
 111 #if defined(ENABLE_OPAGENT)
 112 bool opt_opagent = false;
 113 #endif
 114
 115 /* optimization options *******************************************************/
 116
 117 #if defined(ENABLE_IFCONV)
 118 bool opt_ifconv = false;
 119 #endif
 120
 121 #if defined(ENABLE_LSRA) || defined(ENABLE_SSA)
 122 bool opt_lsra = false;
 123 #endif
 124 #if defined(ENABLE_SSA)
 125 bool opt_ssa_dce = false;          /* enable dead code elemination */
 126 bool opt_ssa_cp = false;           /* enable copy propagation      */
 127 #endif
 128
 129
 130 /* interpreter options ********************************************************/
 131
 132 #if defined(ENABLE_INTRP)
 133 bool opt_no_dynamic = false;            /* suppress dynamic superinstructions */
 134 bool opt_no_replication = false;        /* don't use replication in intrp     */
 135 bool opt_no_quicksuper = false;         /* instructions for quickening cannot be
 136                                                                                    part of dynamic superinstructions */
 137
 138 s4   opt_static_supers = 0x7fffffff;
 139 bool vm_debug = false;          /* XXX this should be called `opt_trace'      */
 140 #endif
 141
 142 #if defined(ENABLE_DEBUG_FILTER)
 143 const char *opt_filter_verbosecall_include = 0;
 144 const char *opt_filter_verbosecall_exclude = 0;
 145 const char *opt_filter_show_method = 0;
 146 #endif
 147
 148
 149 /* -XX options ****************************************************************/
 150
 151 /* NOTE: For better readability keep these alpha-sorted. */
 152
 153 /* Options which must always be available (production options in
 154    HotSpot). */
 155
 156 int64_t  opt_MaxDirectMemorySize          = -1;
 157 int      opt_MaxPermSize                  = 0;
 158 int      opt_PermSize                     = 0;
 159 int      opt_ThreadStackSize              = 0;
 160
 161 /* Debugging options which can be turned off. */
 162
 163 int      opt_DebugExceptions              = 0;
 164 int      opt_DebugFinalizer               = 0;
 165 int      opt_DebugLocalReferences         = 0;
 166 int      opt_DebugLocks                   = 0;
 167 int      opt_DebugPackage                 = 0;
 168 int      opt_DebugPatcher                 = 0;
 169 int      opt_DebugProperties              = 0;
 170 int      opt_DebugStackFrameInfo          = 0;
 171 int      opt_DebugStackTrace              = 0;
 172 int      opt_DebugThreads                 = 0;
 173 #if defined(ENABLE_DISASSEMBLER)
 174 int      opt_DisassembleStubs             = 0;
 175 #endif
 176 #if defined(ENABLE_OPAGENT)
 177 int      opt_EnableOpagent                = 0;
 178 #endif
 179 #if defined(ENABLE_GC_CACAO)
 180 int      opt_GCDebugRootSet               = 0;
 181 int      opt_GCStress                     = 0;
 182 #endif
 183 #if defined(ENABLE_INLINING)
 184 int      opt_Inline                       = 0;
 185 #if defined(ENABLE_INLINING_DEBUG) || !defined(NDEBUG)
 186 int      opt_InlineAll                    = 0;
 187 int      opt_InlineCount                  = INT_MAX;
 188 int      opt_InlineMaxSize                = INT_MAX;
 189 int      opt_InlineMinSize                = 0;
 190 #endif
 191 #endif
 192 int      opt_PrintConfig                  = 0;
 193 int      opt_ProfileGCMemoryUsage         = 0;
 194 int      opt_ProfileMemoryUsage           = 0;
 195 FILE    *opt_ProfileMemoryUsageGNUPlot    = NULL;
 196 #if defined(ENABLE_REPLACEMENT)
 197 int      opt_TestReplacement              = 0;
 198 #endif
 199 int      opt_TraceCompilerCalls           = 0;
 200 int      opt_TraceExceptions              = 0;
 201 int      opt_TraceHPI                     = 0;
 202 #if defined(ENABLE_INLINING) && !defined(NDEBUG)
 203 int      opt_TraceInlining                = 0;
 204 #endif
 205 int      opt_TraceJavaCalls               = 0;
 206 int      opt_TraceJNICalls                = 0;
 207 int      opt_TraceJVMCalls                = 0;
 208 int      opt_TraceJVMCallsVerbose         = 0;
 209 int      opt_TraceLinkClass               = 0;
 210 #if defined(ENABLE_REPLACEMENT)
 211 int      opt_TraceReplacement             = 0;
 212 #endif
 213 int      opt_TraceSubsystemInitialization = 0;
 214 int      opt_TraceTraps                   = 0;
 215
 216
 217 enum {
 218         OPT_TYPE_BOOLEAN,
 219         OPT_TYPE_VALUE
 220 };
 221
 222 enum {
 223         /* Options which must always be available (production options in
 224            HotSpot). */
 225
 226         OPT_MaxDirectMemorySize,
 227         OPT_MaxPermSize,
 228         OPT_PermSize,
 229         OPT_ThreadStackSize,
 230
 231         /* Debugging options which can be turned off. */
 232
 233         OPT_DebugExceptions,
 234         OPT_DebugFinalizer,
 235         OPT_DebugLocalReferences,
 236         OPT_DebugLocks,
 237         OPT_DebugPackage,
 238         OPT_DebugPatcher,
 239         OPT_DebugProperties,
 240         OPT_DebugStackFrameInfo,
 241         OPT_DebugStackTrace,
 242         OPT_DebugThreads,
 243         OPT_DisassembleStubs,
 244         OPT_EnableOpagent,
 245         OPT_GCDebugRootSet,
 246         OPT_GCStress,
 247         OPT_Inline,
 248         OPT_InlineAll,
 249         OPT_InlineCount,
 250         OPT_InlineMaxSize,
 251         OPT_InlineMinSize,
 252         OPT_PrintConfig,
 253         OPT_ProfileGCMemoryUsage,
 254         OPT_ProfileMemoryUsage,
 255         OPT_ProfileMemoryUsageGNUPlot,
 256         OPT_TestReplacement,
 257         OPT_TraceCompilerCalls,
 258         OPT_TraceExceptions,
 259         OPT_TraceHPI,
 260         OPT_TraceInlining,
 261         OPT_TraceJavaCalls,
 262         OPT_TraceJNICalls,
 263         OPT_TraceJVMCalls,
 264         OPT_TraceJVMCallsVerbose,
 265         OPT_TraceLinkClass,
 266         OPT_TraceReplacement,
 267         OPT_TraceSubsystemInitialization,
 268         OPT_TraceTraps,
 269         OPT_Vmlog,
 270         OPT_VmlogStrings,
 271         OPT_VmlogIgnore
 272 };
 273
 274
 275 option_t options_XX[] = {
 276         /* Options which must always be available (production options in
 277            HotSpot). */
 278
 279         { "MaxDirectMemorySize",          OPT_MaxDirectMemorySize,          OPT_TYPE_VALUE,   "Maximum total size of NIO direct-buffer allocations" },
 280         { "MaxPermSize",                  OPT_MaxPermSize,                  OPT_TYPE_VALUE,   "not implemented" },
 281         { "PermSize",                     OPT_PermSize,                     OPT_TYPE_VALUE,   "not implemented" },
 282         { "ThreadStackSize",              OPT_ThreadStackSize,              OPT_TYPE_VALUE,   "TODO" },
 283
 284         /* Debugging options which can be turned off. */
 285
 286         { "DebugExceptions",              OPT_DebugExceptions,              OPT_TYPE_BOOLEAN, "debug exceptions" },
 287         { "DebugFinalizer",               OPT_DebugFinalizer,               OPT_TYPE_BOOLEAN, "debug finalizer thread" },
 288         { "DebugLocalReferences",         OPT_DebugLocalReferences,         OPT_TYPE_BOOLEAN, "print debug information for local reference tables" },
 289         { "DebugLocks",                   OPT_DebugLocks,                   OPT_TYPE_BOOLEAN, "print debug information for locks" },
 290         { "DebugPackage",                 OPT_DebugPackage,                 OPT_TYPE_BOOLEAN, "debug Java boot-packages" },
 291         { "DebugPatcher",                 OPT_DebugPatcher,                 OPT_TYPE_BOOLEAN, "debug JIT code patching" },
 292         { "DebugProperties",              OPT_DebugProperties,              OPT_TYPE_BOOLEAN, "print debug information for properties" },
 293         { "DebugStackFrameInfo",          OPT_DebugStackFrameInfo,          OPT_TYPE_BOOLEAN, "TODO" },
 294         { "DebugStackTrace",              OPT_DebugStackTrace,              OPT_TYPE_BOOLEAN, "debug stacktrace creation" },
 295         { "DebugThreads",                 OPT_DebugThreads,                 OPT_TYPE_BOOLEAN, "print debug information for threads" },
 296 #if defined(ENABLE_DISASSEMBLER)
 297         { "DisassembleStubs",             OPT_DisassembleStubs,             OPT_TYPE_BOOLEAN, "disassemble builtin and native stubs when generated" },
 298 #endif
 299 #if defined(ENABLE_OPAGENT)
 300         { "EnableOpagent",                OPT_EnableOpagent,                OPT_TYPE_BOOLEAN, "enable providing JIT output to Oprofile" },
 301 #endif
 302 #if defined(ENABLE_GC_CACAO)
 303         { "GCDebugRootSet",               OPT_GCDebugRootSet,               OPT_TYPE_BOOLEAN, "GC: print root-set at collection" },
 304         { "GCStress",                     OPT_GCStress,                     OPT_TYPE_BOOLEAN, "GC: forced collection at every allocation" },
 305 #endif
 306 #if defined(ENABLE_INLINING)
 307         { "Inline",                       OPT_Inline,                       OPT_TYPE_BOOLEAN, "enable method inlining" },
 308 #if defined(ENABLE_INLINING_DEBUG) || !defined(NDEBUG)
 309         { "InlineAll",                    OPT_InlineAll,                    OPT_TYPE_BOOLEAN, "use inlining in all compilations" },
 310         { "InlineCount",                  OPT_InlineCount,                  OPT_TYPE_VALUE,   "stop inlining after the given number of roots" },
 311         { "InlineMaxSize",                OPT_InlineMaxSize,                OPT_TYPE_VALUE,   "maximum size for inlined result" },
 312         { "InlineMinSize",                OPT_InlineMinSize,                OPT_TYPE_VALUE,   "minimum size for inlined result" },
 313 #endif
 314 #endif
 315         { "PrintConfig",                  OPT_PrintConfig,                  OPT_TYPE_BOOLEAN, "print VM configuration" },
 316         { "ProfileGCMemoryUsage",         OPT_ProfileGCMemoryUsage,         OPT_TYPE_VALUE,   "profiles GC memory usage in the given interval, <value> is in seconds (default: 5)" },
 317         { "ProfileMemoryUsage",           OPT_ProfileMemoryUsage,           OPT_TYPE_VALUE,   "TODO" },
 318         { "ProfileMemoryUsageGNUPlot",    OPT_ProfileMemoryUsageGNUPlot,    OPT_TYPE_VALUE,   "TODO" },
 319 #if defined(ENABLE_REPLACEMENT)
 320         { "TestReplacement",              OPT_TestReplacement,              OPT_TYPE_BOOLEAN, "activate all replacement points during code generation" },
 321 #endif
 322         { "TraceCompilerCalls",           OPT_TraceCompilerCalls,           OPT_TYPE_BOOLEAN, "trace JIT compiler calls" },
 323         { "TraceExceptions",              OPT_TraceExceptions,              OPT_TYPE_BOOLEAN, "trace Exception throwing" },
 324         { "TraceHPI",                     OPT_TraceHPI,                     OPT_TYPE_BOOLEAN, "Trace Host Porting Interface (HPI)" },
 325 #if defined(ENABLE_INLINING) && !defined(NDEBUG)
 326         { "TraceInlining",                OPT_TraceInlining,                OPT_TYPE_VALUE,   "trace method inlining with the given verbosity level (default: 1)" },
 327 #endif
 328 #if !defined(ENABLE_VMLOG)
 329         { "TraceJavaCalls",               OPT_TraceJavaCalls,               OPT_TYPE_BOOLEAN, "trace Java method calls" },
 330 #endif
 331         { "TraceJNICalls",                OPT_TraceJNICalls,                OPT_TYPE_BOOLEAN, "trace JNI method calls" },
 332         { "TraceJVMCalls",                OPT_TraceJVMCalls,                OPT_TYPE_BOOLEAN, "trace JVM method calls but omit very frequent ones" },
 333         { "TraceJVMCallsVerbose",         OPT_TraceJVMCallsVerbose,         OPT_TYPE_BOOLEAN, "trace all JVM method calls" },
 334         { "TraceLinkClass",               OPT_TraceLinkClass,               OPT_TYPE_BOOLEAN, "trace class linking" },
 335 #if defined(ENABLE_REPLACEMENT)
 336         { "TraceReplacement",             OPT_TraceReplacement,             OPT_TYPE_VALUE,   "trace on-stack replacement with the given verbosity level (default: 1)" },
 337 #endif
 338         { "TraceSubsystemInitialization", OPT_TraceSubsystemInitialization, OPT_TYPE_BOOLEAN, "trace initialization of subsystems" },
 339         { "TraceTraps",                   OPT_TraceTraps,                   OPT_TYPE_BOOLEAN, "trace traps generated by JIT code" },
 340 #if defined(ENABLE_VMLOG)
 341         { "Vmlog",                        OPT_Vmlog,                        OPT_TYPE_VALUE,   "prefix for vmlog trace files (enables vmlog)" },
 342         { "VmlogStrings",                 OPT_VmlogStrings,                 OPT_TYPE_VALUE,   "prefix of vmlog string file to load" },
 343         { "VmlogIgnore",                  OPT_VmlogIgnore,                  OPT_TYPE_VALUE,   "prefix of vmlog ignore file to load" },
 344 #endif
 345
 346         /* end marker */
 347
 348         { NULL,                           -1,                               -1,               NULL }
 349 };
 350
 351
 352 /* options_get *****************************************************************
 353
 354    DOCUMENT ME!!!
 355
 356 *******************************************************************************/
 357
 358 int options_get(opt_struct *opts, JavaVMInitArgs *vm_args)
 359 {
 360         char *option;
 361         int   i;
 362
 363         if (opt_index >= vm_args->nOptions)
 364                 return OPT_DONE;
 365
 366         /* get the current option */
 367
 368         option = vm_args->options[opt_index].optionString;
 369
 370         if ((option == NULL) || (option[0] != '-'))
 371                 return OPT_DONE;
 372
 373         for (i = 0; opts[i].name; i++) {
 374                 if (!opts[i].arg) {
 375                         /* boolean option found */
 376
 377                         if (strcmp(option + 1, opts[i].name) == 0) {
 378                                 opt_index++;
 379                                 return opts[i].value;
 380                         }
 381
 382                 } else {
 383                         /* parameter option found */
 384
 385                         /* with a space between */
 386
 387                         if (strcmp(option + 1, opts[i].name) == 0) {
 388                                 opt_index++;
 389
 390                                 if (opt_index < vm_args->nOptions) {
 391                                         opt_arg = os_strdup(vm_args->options[opt_index].optionString);
 392                                         opt_index++;
 393                                         return opts[i].value;
 394                                 }
 395
 396                                 return OPT_ERROR;
 397
 398                         } else {
 399                                 /* parameter and option have no space between */
 400
 401                                 /* FIXME: this assumption is plain wrong, hits you if there is a
 402                                  * parameter with no argument starting with same letter as param with argument
 403                                  * but named after that one, ouch! */
 404
 405                                 size_t l = os_strlen(opts[i].name);
 406
 407                                 if (os_strlen(option + 1) > l) {
 408                                         if (memcmp(option + 1, opts[i].name, l) == 0) {
 409                                                 opt_index++;
 410                                                 opt_arg = os_strdup(option + 1 + l);
 411                                                 return opts[i].value;
 412                                         }
 413                                 }
 414                         }
 415                 }
 416         }
 417
 418         return OPT_ERROR;
 419 }
 420
 421
 422 /* options_xxusage *************************************************************
 423
 424    Print usage message for debugging options.
 425
 426 *******************************************************************************/
 427
 428 static void options_xxusage(void)
 429 {
 430         option_t   *opt;
 431         int         length;
 432         int         i;
 433         const char *c;
 434
 435         /* Prevent compiler warning. */
 436
 437         length = 0;
 438
 439         for (opt = options_XX; opt->name != NULL; opt++) {
 440                 printf("    -XX:");
 441
 442                 switch (opt->type) {
 443                 case OPT_TYPE_BOOLEAN:
 444                         printf("+%s", opt->name);
 445                         length = os_strlen("    -XX:+") + os_strlen(opt->name);
 446                         break;
 447
 448                 case OPT_TYPE_VALUE:
 449                         printf("%s=<value>", opt->name);
 450                         length = os_strlen("    -XX:") + os_strlen(opt->name) +
 451                                 os_strlen("=<value>");
 452                         break;
 453
 454                 default:
 455                         vm_abort("options_xxusage: unkown option type %d", opt->type);
 456                 }
 457
 458                 /* Check if the help fits into one 80-column line.
 459                    Documentation starts at column 29. */
 460
 461                 if (length < (29 - 1)) {
 462                         /* Print missing spaces up to column 29. */
 463
 464                         for (i = length; i < 29; i++)
 465                                 printf(" ");
 466                 }
 467                 else {
 468                         printf("\n");
 469                         printf("                             "); /* 29 spaces */
 470                 }
 471
 472                 /* Check documentation length. */
 473
 474                 length = os_strlen(opt->doc);
 475
 476                 if (length < (80 - 29)) {
 477                         printf("%s", opt->doc);
 478                 }
 479                 else {
 480                         for (c = opt->doc, i = 29; *c != 0; c++, i++) {
 481                                 /* If we are at the end of the line, break it. */
 482
 483                                 if (i == 80) {
 484                                         printf("\n");
 485                                         printf("                             "); /* 29 spaces */
 486                                         i = 29;
 487                                 }
 488
 489                                 printf("%c", *c);
 490                         }
 491                 }
 492
 493                 printf("\n");
 494         }
 495
 496         /* exit with error code */
 497
 498         exit(1);
 499 }
 500
 501
 502 /* options_xx ******************************************************************
 503
 504    Handle -XX: options.
 505
 506 *******************************************************************************/
 507
 508 void options_xx(JavaVMInitArgs *vm_args)
 509 {
 510         const char *name;
 511         const char *start;
 512         char       *end;
 513         int         length;
 514         int         enable;
 515         char       *value;
 516         option_t   *opt;
 517         char       *filename;
 518         FILE       *file;
 519         int         i;
 520
 521         /* Iterate over all passed options. */
 522
 523         for (i = 0; i < vm_args->nOptions; i++) {
 524                 /* Get the current option. */
 525
 526                 name = vm_args->options[i].optionString;
 527
 528                 /* Check for help (-XX). */
 529
 530                 if (strcmp(name, "-XX") == 0)
 531                         options_xxusage();
 532
 533                 /* Check if the option start with -XX. */
 534
 535                 start = strstr(name, "-XX:");
 536
 537                 if ((start == NULL) || (start != name))
 538                         continue;
 539
 540                 /* Check if the option is a boolean option. */
 541
 542                 if (name[4] == '+') {
 543                         start  = name + 4 + 1;
 544                         enable = 1;
 545                 }
 546                 else if (name[4] == '-') {
 547                         start  = name + 4 + 1;
 548                         enable = 0;
 549                 }
 550                 else {
 551                         start  = name + 4;
 552                         enable = -1;
 553                 }
 554
 555                 /* Search for a '=' in the option name and get the option name
 556                    length and the value of the option. */
 557
 558                 end = strchr(start, '=');
 559
 560                 if (end == NULL) {
 561                         length = os_strlen(start);
 562                         value  = NULL;
 563                 }
 564                 else {
 565                         length = end - start;
 566                         value  = end + 1;
 567                 }
 568
 569                 /* Search the option in the option array. */
 570
 571                 for (opt = options_XX; opt->name != NULL; opt++) {
 572                         if (strncmp(opt->name, start, length) == 0) {
 573                                 /* Check if the options passed fits to the type. */
 574
 575                                 switch (opt->type) {
 576                                 case OPT_TYPE_BOOLEAN:
 577                                         if ((enable == -1) || (value != NULL))
 578                                                 options_xxusage();
 579                                         break;
 580                                 case OPT_TYPE_VALUE:
 581                                         if ((enable != -1) || (value == NULL))
 582                                                 options_xxusage();
 583                                         break;
 584                                 default:
 585                                         vm_abort("options_xx: unknown option type %d for option %s",
 586                                                          opt->type, opt->name);
 587                                 }
 588
 589                                 break;
 590                         }
 591                 }
 592
 593                 /* Process the option. */
 594
 595                 switch (opt->value) {
 596
 597                 /* Options which must always be available (production options
 598                    in HotSpot). */
 599
 600                 case OPT_MaxDirectMemorySize:
 601                         opt_MaxDirectMemorySize = os_atoi(value);
 602                         break;
 603
 604                 case OPT_MaxPermSize:
 605                         /* Currently ignored. */
 606                         break;
 607
 608                 case OPT_PermSize:
 609                         /* Currently ignored. */
 610                         break;
 611
 612                 case OPT_ThreadStackSize:
 613                         /* currently ignored */
 614                         break;
 615
 616                 /* Debugging options which can be turned off. */
 617
 618                 case OPT_DebugExceptions:
 619                         opt_DebugExceptions = enable;
 620                         break;
 621
 622                 case OPT_DebugFinalizer:
 623                         opt_DebugFinalizer = enable;
 624                         break;
 625
 626                 case OPT_DebugLocalReferences:
 627                         opt_DebugLocalReferences = enable;
 628                         break;
 629
 630                 case OPT_DebugLocks:
 631                         opt_DebugLocks = enable;
 632                         break;
 633
 634                 case OPT_DebugPackage:
 635                         opt_DebugPackage = enable;
 636                         break;
 637
 638                 case OPT_DebugPatcher:
 639                         opt_DebugPatcher = enable;
 640                         break;
 641
 642                 case OPT_DebugProperties:
 643                         opt_DebugProperties = enable;
 644                         break;
 645
 646                 case OPT_DebugStackFrameInfo:
 647                         opt_DebugStackFrameInfo = enable;
 648                         break;
 649
 650                 case OPT_DebugStackTrace:
 651                         opt_DebugStackTrace = enable;
 652                         break;
 653
 654                 case OPT_DebugThreads:
 655                         opt_DebugThreads = enable;
 656                         break;
 657
 658 #if defined(ENABLE_DISASSEMBLER)
 659                 case OPT_DisassembleStubs:
 660                         opt_DisassembleStubs = enable;
 661                         break;
 662 #endif
 663
 664 #if defined(ENABLE_OPAGENT)
 665                 case OPT_EnableOpagent:
 666                         opt_EnableOpagent = enable;
 667                         break;
 668 #endif
 669
 670 #if defined(ENABLE_GC_CACAO)
 671                 case OPT_GCDebugRootSet:
 672                         opt_GCDebugRootSet = enable;
 673                         break;
 674
 675                 case OPT_GCStress:
 676                         opt_GCStress = enable;
 677                         break;
 678 #endif
 679
 680 #if defined(ENABLE_INLINING)
 681                 case OPT_Inline:
 682                         opt_Inline = enable;
 683                         break;
 684 #if defined(ENABLE_INLINING_DEBUG) || !defined(NDEBUG)
 685                 case OPT_InlineAll:
 686                         opt_InlineAll = enable;
 687                         break;
 688
 689                 case OPT_InlineCount:
 690                         if (value != NULL)
 691                                 opt_InlineCount = os_atoi(value);
 692                         break;
 693
 694                 case OPT_InlineMaxSize:
 695                         if (value != NULL)
 696                                 opt_InlineMaxSize = os_atoi(value);
 697                         break;
 698
 699                 case OPT_InlineMinSize:
 700                         if (value != NULL)
 701                                 opt_InlineMinSize = os_atoi(value);
 702                         break;
 703 #endif
 704 #endif
 705
 706                 case OPT_PrintConfig:
 707                         opt_PrintConfig = enable;
 708                         break;
 709
 710                 case OPT_ProfileGCMemoryUsage:
 711                         if (value == NULL)
 712                                 opt_ProfileGCMemoryUsage = 5;
 713                         else
 714                                 opt_ProfileGCMemoryUsage = os_atoi(value);
 715                         break;
 716
 717                 case OPT_ProfileMemoryUsage:
 718                         if (value == NULL)
 719                                 opt_ProfileMemoryUsage = 5;
 720                         else
 721                                 opt_ProfileMemoryUsage = os_atoi(value);
 722
 723 # if defined(ENABLE_STATISTICS)
 724                         /* we also need statistics */
 725
 726                         opt_stat = true;
 727 # endif
 728                         break;
 729
 730                 case OPT_ProfileMemoryUsageGNUPlot:
 731                         if (value == NULL)
 732                                 filename = "profile.dat";
 733                         else
 734                                 filename = value;
 735
 736                         file = fopen(filename, "w");
 737
 738                         if (file == NULL)
 739                                 vm_abort_errno("options_xx: fopen failed");
 740
 741                         opt_ProfileMemoryUsageGNUPlot = file;
 742                         break;
 743
 744 #if defined(ENABLE_REPLACEMENT)
 745                 case OPT_TestReplacement:
 746                         opt_TestReplacement = enable;
 747                         break;
 748 #endif
 749
 750                 case OPT_TraceCompilerCalls:
 751                         opt_TraceCompilerCalls = enable;
 752                         break;
 753
 754                 case OPT_TraceExceptions:
 755                         opt_TraceExceptions = enable;
 756                         break;
 757
 758                 case OPT_TraceHPI:
 759                         opt_TraceHPI = enable;
 760                         break;
 761
 762 #if defined(ENABLE_INLINING) && !defined(NDEBUG)
 763                 case OPT_TraceInlining:
 764                         if (value == NULL)
 765                                 opt_TraceInlining = 1;
 766                         else
 767                                 opt_TraceInlining = os_atoi(value);
 768                         break;
 769 #endif
 770
 771                 case OPT_TraceJavaCalls:
 772                         opt_verbosecall = enable;
 773                         opt_TraceJavaCalls = enable;
 774                         break;
 775
 776                 case OPT_TraceJNICalls:
 777                         opt_TraceJNICalls = enable;
 778                         break;
 779
 780                 case OPT_TraceJVMCalls:
 781                         opt_TraceJVMCalls = enable;
 782                         break;
 783
 784                 case OPT_TraceJVMCallsVerbose:
 785                         opt_TraceJVMCallsVerbose = enable;
 786                         break;
 787
 788                 case OPT_TraceLinkClass:
 789                         opt_TraceLinkClass = enable;
 790                         break;
 791
 792 #if defined(ENABLE_REPLACEMENT)
 793                 case OPT_TraceReplacement:
 794                         if (value == NULL)
 795                                 opt_TraceReplacement = 1;
 796                         else
 797                                 opt_TraceReplacement = os_atoi(value);
 798                         break;
 799 #endif
 800
 801                 case OPT_TraceSubsystemInitialization:
 802                         opt_TraceSubsystemInitialization = enable;
 803                         break;
 804
 805                 case OPT_TraceTraps:
 806                         opt_TraceTraps = enable;
 807                         break;
 808
 809 #if defined(ENABLE_VMLOG)
 810                 case OPT_Vmlog:
 811                         if (value == NULL)
 812                                 vmlog_cacao_set_prefix("vmlog");
 813                         else
 814                                 vmlog_cacao_set_prefix(value);
 815                         opt_verbosecall = 1;
 816                         opt_TraceJavaCalls = 1;
 817                         break;
 818
 819                 case OPT_VmlogStrings:
 820                         if (value != NULL)
 821                                 vmlog_cacao_set_stringprefix(value);
 822                         break;
 823
 824                 case OPT_VmlogIgnore:
 825                         if (value != NULL)
 826                                 vmlog_cacao_set_ignoreprefix(value);
 827                         break;
 828 #endif
 829
 830                 default:
 831                         printf("Unknown -XX option: %s\n", name);
 832                         break;
 833                 }
 834         }
 835 }
 836
 837
 838 /*
 839  * These are local overrides for various environment variables in Emacs.
 840  * Please do not remove this and leave it at the end of the file, where
 841  * Emacs will automagically detect them.
 842  * ---------------------------------------------------------------------
 843  * Local variables:
 844  * mode: c
 845  * indent-tabs-mode: t
 846  * c-basic-offset: 4
 847  * tab-width: 4
 848  * End:
 849  */