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.hpp"
  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
  66 bool loadverbose = false;
  67 bool initverbose = false;
  68
  69 bool opt_verboseclass     = false;
  70 bool opt_verbosegc        = false;
  71 bool opt_verbosejni       = false;
  72 bool opt_verbosecall      = false;      /* trace all method invocation        */
  73
  74 bool showmethods = false;
  75 bool showconstantpool = false;
  76 bool showutf = false;
  77
  78 bool compileverbose =  false;           /* trace compiler actions             */
  79 bool showstack = false;
  80
  81 bool opt_showdisassemble    = false;    /* generate disassembler listing      */
  82 bool opt_showddatasegment   = false;    /* generate data segment listing      */
  83 bool opt_showintermediate   = false;    /* generate intermediate code listing */
  84
  85 bool checkbounds = true;       /* check array bounds                         */
  86 bool checksync = true;         /* do synchronization                         */
  87 #if defined(ENABLE_LOOP)
  88 bool opt_loops = false;        /* optimize array accesses in loops           */
  89 #endif
  90
  91 bool makeinitializations = true;
  92
  93 #if defined(ENABLE_STATISTICS)
  94 bool opt_stat    = false;
  95 bool opt_getloadingtime = false;   /* to measure the runtime                 */
  96 bool opt_getcompilingtime = false; /* compute compile time                   */
  97 #endif
  98 #if defined(ENABLE_VERIFIER)
  99 bool opt_verify  = true;       /* true if classfiles should be verified      */
 100 #endif
 101
 102 #if defined(ENABLE_PROFILING)
 103 bool opt_prof    = false;
 104 bool opt_prof_bb = false;
 105 #endif
 106
 107 #if defined(ENABLE_OPAGENT)
 108 bool opt_opagent = false;
 109 #endif
 110
 111 /* optimization options *******************************************************/
 112
 113 #if defined(ENABLE_IFCONV)
 114 bool opt_ifconv = false;
 115 #endif
 116
 117 #if defined(ENABLE_LSRA) || defined(ENABLE_SSA)
 118 bool opt_lsra = false;
 119 #endif
 120 #if defined(ENABLE_SSA)
 121 bool opt_ssa_dce = false;          /* enable dead code elemination */
 122 bool opt_ssa_cp = false;           /* enable copy propagation      */
 123 #endif
 124
 125
 126 /* interpreter options ********************************************************/
 127
 128 #if defined(ENABLE_INTRP)
 129 bool opt_no_dynamic = false;            /* suppress dynamic superinstructions */
 130 bool opt_no_replication = false;        /* don't use replication in intrp     */
 131 bool opt_no_quicksuper = false;         /* instructions for quickening cannot be
 132                                                                                    part of dynamic superinstructions */
 133
 134 s4   opt_static_supers = 0x7fffffff;
 135 bool vm_debug = false;          /* XXX this should be called `opt_trace'      */
 136 #endif
 137
 138 #if defined(ENABLE_DEBUG_FILTER)
 139 const char *opt_filter_verbosecall_include = 0;
 140 const char *opt_filter_verbosecall_exclude = 0;
 141 const char *opt_filter_show_method = 0;
 142 #endif
 143
 144
 145 /* -XX options ****************************************************************/
 146
 147 /* NOTE: For better readability keep these alpha-sorted. */
 148
 149 /* Options which must always be available (production options in
 150    HotSpot). */
 151
 152 int64_t  opt_MaxDirectMemorySize          = -1;
 153 int      opt_MaxPermSize                  = 0;
 154 int      opt_PermSize                     = 0;
 155 int      opt_ThreadStackSize              = 0;
 156
 157 /* Debugging options which can be turned off. */
 158
 159 bool     opt_AlwaysEmitLongBranches       = false;
 160 bool     opt_AlwaysMmapFirstPage          = false;
 161 int      opt_CompileAll                   = 0;
 162 char*    opt_CompileMethod                = NULL;
 163 char*    opt_CompileSignature             = NULL;
 164 int      opt_DebugExceptions              = 0;
 165 int      opt_DebugFinalizer               = 0;
 166 int      opt_DebugLocalReferences         = 0;
 167 int      opt_DebugLocks                   = 0;
 168 int      opt_DebugPackage                 = 0;
 169 int      opt_DebugPatcher                 = 0;
 170 int      opt_DebugProperties              = 0;
 171 int      opt_DebugStackFrameInfo          = 0;
 172 int      opt_DebugStackTrace              = 0;
 173 int      opt_DebugThreads                 = 0;
 174 #if defined(ENABLE_DISASSEMBLER)
 175 int      opt_DisassembleStubs             = 0;
 176 #endif
 177 #if defined(ENABLE_OPAGENT)
 178 int      opt_EnableOpagent                = 0;
 179 #endif
 180 #if defined(ENABLE_GC_CACAO)
 181 int      opt_GCDebugRootSet               = 0;
 182 int      opt_GCStress                     = 0;
 183 #endif
 184 #if defined(ENABLE_INLINING)
 185 int      opt_Inline                       = 0;
 186 #if defined(ENABLE_INLINING_DEBUG) || !defined(NDEBUG)
 187 int      opt_InlineAll                    = 0;
 188 int      opt_InlineCount                  = INT_MAX;
 189 int      opt_InlineMaxSize                = INT_MAX;
 190 int      opt_InlineMinSize                = 0;
 191 #endif
 192 #endif
 193 int      opt_PrintConfig                  = 0;
 194 int      opt_PrintWarnings                = 0;
 195 int      opt_ProfileGCMemoryUsage         = 0;
 196 int      opt_ProfileMemoryUsage           = 0;
 197 FILE    *opt_ProfileMemoryUsageGNUPlot    = NULL;
 198 int      opt_RegallocSpillAll             = 0;
 199 #if defined(ENABLE_REPLACEMENT)
 200 int      opt_TestReplacement              = 0;
 201 #endif
 202 int      opt_TraceBuiltinCalls            = 0;
 203 int      opt_TraceCompilerCalls           = 0;
 204 int      opt_TraceExceptions              = 0;
 205 int      opt_TraceHPI                     = 0;
 206 #if defined(ENABLE_INLINING) && !defined(NDEBUG)
 207 int      opt_TraceInlining                = 0;
 208 #endif
 209 int      opt_TraceJavaCalls               = 0;
 210 int      opt_TraceJNICalls                = 0;
 211 int      opt_TraceJVMCalls                = 0;
 212 int      opt_TraceJVMCallsVerbose         = 0;
 213 int      opt_TraceLinkClass               = 0;
 214 #if defined(ENABLE_REPLACEMENT)
 215 int      opt_TraceReplacement             = 0;
 216 #endif
 217 int      opt_TraceSubsystemInitialization = 0;
 218 int      opt_TraceTraps                   = 0;
 219
 220
 221 enum {
 222         OPT_TYPE_BOOLEAN,
 223         OPT_TYPE_VALUE
 224 };
 225
 226 enum {
 227         /* Options which must always be available (production options in
 228            HotSpot). */
 229
 230         OPT_MaxDirectMemorySize,
 231         OPT_MaxPermSize,
 232         OPT_PermSize,
 233         OPT_ThreadStackSize,
 234
 235         /* Debugging options which can be turned off. */
 236
 237         OPT_AlwaysEmitLongBranches,
 238         OPT_AlwaysMmapFirstPage,
 239         OPT_CompileAll,
 240         OPT_CompileMethod,
 241         OPT_CompileSignature,
 242         OPT_DebugExceptions,
 243         OPT_DebugFinalizer,
 244         OPT_DebugLocalReferences,
 245         OPT_DebugLocks,
 246         OPT_DebugPackage,
 247         OPT_DebugPatcher,
 248         OPT_DebugProperties,
 249         OPT_DebugStackFrameInfo,
 250         OPT_DebugStackTrace,
 251         OPT_DebugThreads,
 252         OPT_DisassembleStubs,
 253         OPT_EnableOpagent,
 254         OPT_GCDebugRootSet,
 255         OPT_GCStress,
 256         OPT_Inline,
 257         OPT_InlineAll,
 258         OPT_InlineCount,
 259         OPT_InlineMaxSize,
 260         OPT_InlineMinSize,
 261         OPT_PrintConfig,
 262         OPT_PrintWarnings,
 263         OPT_ProfileGCMemoryUsage,
 264         OPT_ProfileMemoryUsage,
 265         OPT_ProfileMemoryUsageGNUPlot,
 266         OPT_RegallocSpillAll,
 267         OPT_TestReplacement,
 268         OPT_TraceBuiltinCalls,
 269         OPT_TraceCompilerCalls,
 270         OPT_TraceExceptions,
 271         OPT_TraceHPI,
 272         OPT_TraceInlining,
 273         OPT_TraceJavaCalls,
 274         OPT_TraceJNICalls,
 275         OPT_TraceJVMCalls,
 276         OPT_TraceJVMCallsVerbose,
 277         OPT_TraceLinkClass,
 278         OPT_TraceReplacement,
 279         OPT_TraceSubsystemInitialization,
 280         OPT_TraceTraps,
 281         OPT_Vmlog,
 282         OPT_VmlogStrings,
 283         OPT_VmlogIgnore
 284 };
 285
 286
 287 option_t options_XX[] = {
 288         /* Options which must always be available (production options in
 289            HotSpot). */
 290
 291         { "MaxDirectMemorySize",          OPT_MaxDirectMemorySize,          OPT_TYPE_VALUE,   "Maximum total size of NIO direct-buffer allocations" },
 292         { "MaxPermSize",                  OPT_MaxPermSize,                  OPT_TYPE_VALUE,   "not implemented" },
 293         { "PermSize",                     OPT_PermSize,                     OPT_TYPE_VALUE,   "not implemented" },
 294         { "ThreadStackSize",              OPT_ThreadStackSize,              OPT_TYPE_VALUE,   "TODO" },
 295
 296         /* Debugging options which can be turned off. */
 297
 298         { "AlwaysEmitLongBranches",       OPT_AlwaysEmitLongBranches,       OPT_TYPE_BOOLEAN, "Always emit long-branches." },
 299         { "AlwaysMmapFirstPage",          OPT_AlwaysMmapFirstPage,          OPT_TYPE_BOOLEAN, "Always mmap memory page at address 0x0." },
 300         { "CompileAll",                   OPT_CompileAll,                   OPT_TYPE_BOOLEAN, "compile all methods, no execution" },
 301         { "CompileMethod",                OPT_CompileMethod,                OPT_TYPE_VALUE,   "compile only a specific method" },
 302         { "CompileSignature",             OPT_CompileSignature,             OPT_TYPE_VALUE,   "specify signature for a specific method" },
 303         { "DebugExceptions",              OPT_DebugExceptions,              OPT_TYPE_BOOLEAN, "debug exceptions" },
 304         { "DebugFinalizer",               OPT_DebugFinalizer,               OPT_TYPE_BOOLEAN, "debug finalizer thread" },
 305         { "DebugLocalReferences",         OPT_DebugLocalReferences,         OPT_TYPE_BOOLEAN, "print debug information for local reference tables" },
 306         { "DebugLocks",                   OPT_DebugLocks,                   OPT_TYPE_BOOLEAN, "print debug information for locks" },
 307         { "DebugPackage",                 OPT_DebugPackage,                 OPT_TYPE_BOOLEAN, "debug Java boot-packages" },
 308         { "DebugPatcher",                 OPT_DebugPatcher,                 OPT_TYPE_BOOLEAN, "debug JIT code patching" },
 309         { "DebugProperties",              OPT_DebugProperties,              OPT_TYPE_BOOLEAN, "print debug information for properties" },
 310         { "DebugStackFrameInfo",          OPT_DebugStackFrameInfo,          OPT_TYPE_BOOLEAN, "TODO" },
 311         { "DebugStackTrace",              OPT_DebugStackTrace,              OPT_TYPE_BOOLEAN, "debug stacktrace creation" },
 312         { "DebugThreads",                 OPT_DebugThreads,                 OPT_TYPE_BOOLEAN, "print debug information for threads" },
 313 #if defined(ENABLE_DISASSEMBLER)
 314         { "DisassembleStubs",             OPT_DisassembleStubs,             OPT_TYPE_BOOLEAN, "disassemble builtin and native stubs when generated" },
 315 #endif
 316 #if defined(ENABLE_OPAGENT)
 317         { "EnableOpagent",                OPT_EnableOpagent,                OPT_TYPE_BOOLEAN, "enable providing JIT output to Oprofile" },
 318 #endif
 319 #if defined(ENABLE_GC_CACAO)
 320         { "GCDebugRootSet",               OPT_GCDebugRootSet,               OPT_TYPE_BOOLEAN, "GC: print root-set at collection" },
 321         { "GCStress",                     OPT_GCStress,                     OPT_TYPE_BOOLEAN, "GC: forced collection at every allocation" },
 322 #endif
 323 #if defined(ENABLE_INLINING)
 324         { "Inline",                       OPT_Inline,                       OPT_TYPE_BOOLEAN, "enable method inlining" },
 325 #if defined(ENABLE_INLINING_DEBUG) || !defined(NDEBUG)
 326         { "InlineAll",                    OPT_InlineAll,                    OPT_TYPE_BOOLEAN, "use inlining in all compilations" },
 327         { "InlineCount",                  OPT_InlineCount,                  OPT_TYPE_VALUE,   "stop inlining after the given number of roots" },
 328         { "InlineMaxSize",                OPT_InlineMaxSize,                OPT_TYPE_VALUE,   "maximum size for inlined result" },
 329         { "InlineMinSize",                OPT_InlineMinSize,                OPT_TYPE_VALUE,   "minimum size for inlined result" },
 330 #endif
 331 #endif
 332         { "PrintConfig",                  OPT_PrintConfig,                  OPT_TYPE_BOOLEAN, "print VM configuration" },
 333         { "PrintWarnings",                OPT_PrintWarnings,                OPT_TYPE_BOOLEAN, "print warnings about suspicious behavior"},
 334         { "ProfileGCMemoryUsage",         OPT_ProfileGCMemoryUsage,         OPT_TYPE_VALUE,   "profiles GC memory usage in the given interval, <value> is in seconds (default: 5)" },
 335         { "ProfileMemoryUsage",           OPT_ProfileMemoryUsage,           OPT_TYPE_VALUE,   "TODO" },
 336         { "ProfileMemoryUsageGNUPlot",    OPT_ProfileMemoryUsageGNUPlot,    OPT_TYPE_VALUE,   "TODO" },
 337         { "RegallocSpillAll",             OPT_RegallocSpillAll,             OPT_TYPE_BOOLEAN, "spill all variables to the stack" },
 338 #if defined(ENABLE_REPLACEMENT)
 339         { "TestReplacement",              OPT_TestReplacement,              OPT_TYPE_BOOLEAN, "activate all replacement points during code generation" },
 340 #endif
 341         { "TraceBuiltinCalls",            OPT_TraceBuiltinCalls,            OPT_TYPE_BOOLEAN, "trace calls to VM builtin functions" },
 342         { "TraceCompilerCalls",           OPT_TraceCompilerCalls,           OPT_TYPE_BOOLEAN, "trace JIT compiler calls" },
 343         { "TraceExceptions",              OPT_TraceExceptions,              OPT_TYPE_BOOLEAN, "trace Exception throwing" },
 344         { "TraceHPI",                     OPT_TraceHPI,                     OPT_TYPE_BOOLEAN, "Trace Host Porting Interface (HPI)" },
 345 #if defined(ENABLE_INLINING) && !defined(NDEBUG)
 346         { "TraceInlining",                OPT_TraceInlining,                OPT_TYPE_VALUE,   "trace method inlining with the given verbosity level (default: 1)" },
 347 #endif
 348 #if !defined(ENABLE_VMLOG)
 349         { "TraceJavaCalls",               OPT_TraceJavaCalls,               OPT_TYPE_BOOLEAN, "trace Java method calls" },
 350 #endif
 351         { "TraceJNICalls",                OPT_TraceJNICalls,                OPT_TYPE_BOOLEAN, "trace JNI method calls" },
 352         { "TraceJVMCalls",                OPT_TraceJVMCalls,                OPT_TYPE_BOOLEAN, "trace JVM method calls but omit very frequent ones" },
 353         { "TraceJVMCallsVerbose",         OPT_TraceJVMCallsVerbose,         OPT_TYPE_BOOLEAN, "trace all JVM method calls" },
 354         { "TraceLinkClass",               OPT_TraceLinkClass,               OPT_TYPE_BOOLEAN, "trace class linking" },
 355 #if defined(ENABLE_REPLACEMENT)
 356         { "TraceReplacement",             OPT_TraceReplacement,             OPT_TYPE_VALUE,   "trace on-stack replacement with the given verbosity level (default: 1)" },
 357 #endif
 358         { "TraceSubsystemInitialization", OPT_TraceSubsystemInitialization, OPT_TYPE_BOOLEAN, "trace initialization of subsystems" },
 359         { "TraceTraps",                   OPT_TraceTraps,                   OPT_TYPE_BOOLEAN, "trace traps generated by JIT code" },
 360 #if defined(ENABLE_VMLOG)
 361         { "Vmlog",                        OPT_Vmlog,                        OPT_TYPE_VALUE,   "prefix for vmlog trace files (enables vmlog)" },
 362         { "VmlogStrings",                 OPT_VmlogStrings,                 OPT_TYPE_VALUE,   "prefix of vmlog string file to load" },
 363         { "VmlogIgnore",                  OPT_VmlogIgnore,                  OPT_TYPE_VALUE,   "prefix of vmlog ignore file to load" },
 364 #endif
 365
 366         /* end marker */
 367
 368         { NULL,                           -1,                               -1,               NULL }
 369 };
 370
 371
 372 /* options_get *****************************************************************
 373
 374    DOCUMENT ME!!!
 375
 376 *******************************************************************************/
 377
 378 int options_get(opt_struct *opts, JavaVMInitArgs *vm_args)
 379 {
 380         char *option;
 381         int   i;
 382
 383         if (opt_index >= vm_args->nOptions)
 384                 return OPT_DONE;
 385
 386         /* get the current option */
 387
 388         option = vm_args->options[opt_index].optionString;
 389
 390         if ((option == NULL) || (option[0] != '-'))
 391                 return OPT_DONE;
 392
 393         for (i = 0; opts[i].name; i++) {
 394                 if (!opts[i].arg) {
 395                         /* boolean option found */
 396
 397                         if (strcmp(option + 1, opts[i].name) == 0) {
 398                                 opt_index++;
 399                                 return opts[i].value;
 400                         }
 401
 402                 } else {
 403                         /* parameter option found */
 404
 405                         /* with a space between */
 406
 407                         if (strcmp(option + 1, opts[i].name) == 0) {
 408                                 opt_index++;
 409
 410                                 if (opt_index < vm_args->nOptions) {
 411                                         opt_arg = os_strdup(vm_args->options[opt_index].optionString);
 412                                         opt_index++;
 413                                         return opts[i].value;
 414                                 }
 415
 416                                 return OPT_ERROR;
 417
 418                         } else {
 419                                 /* parameter and option have no space between */
 420
 421                                 /* FIXME: this assumption is plain wrong, hits you if there is a
 422                                  * parameter with no argument starting with same letter as param with argument
 423                                  * but named after that one, ouch! */
 424
 425                                 size_t l = os_strlen(opts[i].name);
 426
 427                                 if (os_strlen(option + 1) > l) {
 428                                         if (memcmp(option + 1, opts[i].name, l) == 0) {
 429                                                 opt_index++;
 430                                                 opt_arg = os_strdup(option + 1 + l);
 431                                                 return opts[i].value;
 432                                         }
 433                                 }
 434                         }
 435                 }
 436         }
 437
 438         return OPT_ERROR;
 439 }
 440
 441
 442 /* options_xxusage *************************************************************
 443
 444    Print usage message for debugging options.
 445
 446 *******************************************************************************/
 447
 448 static void options_xxusage(void)
 449 {
 450         option_t   *opt;
 451         int         length;
 452         int         i;
 453         const char *c;
 454
 455         /* Prevent compiler warning. */
 456
 457         length = 0;
 458
 459         for (opt = options_XX; opt->name != NULL; opt++) {
 460                 printf("    -XX:");
 461
 462                 switch (opt->type) {
 463                 case OPT_TYPE_BOOLEAN:
 464                         printf("+%s", opt->name);
 465                         length = os_strlen("    -XX:+") + os_strlen(opt->name);
 466                         break;
 467
 468                 case OPT_TYPE_VALUE:
 469                         printf("%s=<value>", opt->name);
 470                         length = os_strlen("    -XX:") + os_strlen(opt->name) +
 471                                 os_strlen("=<value>");
 472                         break;
 473
 474                 default:
 475                         vm_abort("options_xxusage: unkown option type %d", opt->type);
 476                 }
 477
 478                 /* Check if the help fits into one 80-column line.
 479                    Documentation starts at column 29. */
 480
 481                 if (length < (29 - 1)) {
 482                         /* Print missing spaces up to column 29. */
 483
 484                         for (i = length; i < 29; i++)
 485                                 printf(" ");
 486                 }
 487                 else {
 488                         printf("\n");
 489                         printf("                             "); /* 29 spaces */
 490                 }
 491
 492                 /* Check documentation length. */
 493
 494                 length = os_strlen(opt->doc);
 495
 496                 if (length < (80 - 29)) {
 497                         printf("%s", opt->doc);
 498                 }
 499                 else {
 500                         for (c = opt->doc, i = 29; *c != 0; c++, i++) {
 501                                 /* If we are at the end of the line, break it. */
 502
 503                                 if (i == 80) {
 504                                         printf("\n");
 505                                         printf("                             "); /* 29 spaces */
 506                                         i = 29;
 507                                 }
 508
 509                                 printf("%c", *c);
 510                         }
 511                 }
 512
 513                 printf("\n");
 514         }
 515
 516         /* exit with error code */
 517
 518         exit(1);
 519 }
 520
 521
 522 /* options_xx ******************************************************************
 523
 524    Handle -XX: options.
 525
 526 *******************************************************************************/
 527
 528 void options_xx(JavaVMInitArgs *vm_args)
 529 {
 530         const char *name;
 531         const char *start;
 532         char       *end;
 533         int         length;
 534         int         enable;
 535         char       *value;
 536         option_t   *opt;
 537         char       *filename;
 538         FILE       *file;
 539         int         i;
 540
 541         /* Iterate over all passed options. */
 542
 543         for (i = 0; i < vm_args->nOptions; i++) {
 544                 /* Get the current option. */
 545
 546                 name = vm_args->options[i].optionString;
 547
 548                 /* Check for help (-XX). */
 549
 550                 if (strcmp(name, "-XX") == 0)
 551                         options_xxusage();
 552
 553                 /* Check if the option start with -XX. */
 554
 555                 start = strstr(name, "-XX:");
 556
 557                 if ((start == NULL) || (start != name))
 558                         continue;
 559
 560                 /* Check if the option is a boolean option. */
 561
 562                 if (name[4] == '+') {
 563                         start  = name + 4 + 1;
 564                         enable = 1;
 565                 }
 566                 else if (name[4] == '-') {
 567                         start  = name + 4 + 1;
 568                         enable = 0;
 569                 }
 570                 else {
 571                         start  = name + 4;
 572                         enable = -1;
 573                 }
 574
 575                 /* Search for a '=' in the option name and get the option name
 576                    length and the value of the option. */
 577
 578                 end = strchr(start, '=');
 579
 580                 if (end == NULL) {
 581                         length = os_strlen(start);
 582                         value  = NULL;
 583                 }
 584                 else {
 585                         length = end - start;
 586                         value  = end + 1;
 587                 }
 588
 589                 /* Search the option in the option array. */
 590
 591                 for (opt = options_XX; opt->name != NULL; opt++) {
 592                         if (strncmp(opt->name, start, length) == 0) {
 593                                 /* Check if the options passed fits to the type. */
 594
 595                                 switch (opt->type) {
 596                                 case OPT_TYPE_BOOLEAN:
 597                                         if ((enable == -1) || (value != NULL))
 598                                                 options_xxusage();
 599                                         break;
 600                                 case OPT_TYPE_VALUE:
 601                                         if ((enable != -1) || (value == NULL))
 602                                                 options_xxusage();
 603                                         break;
 604                                 default:
 605                                         vm_abort("options_xx: unknown option type %d for option %s",
 606                                                          opt->type, opt->name);
 607                                 }
 608
 609                                 break;
 610                         }
 611                 }
 612
 613                 /* Process the option. */
 614
 615                 switch (opt->value) {
 616
 617                 /* Options which must always be available (production options
 618                    in HotSpot). */
 619
 620                 case OPT_MaxDirectMemorySize:
 621                         opt_MaxDirectMemorySize = os_atoi(value);
 622                         break;
 623
 624                 case OPT_MaxPermSize:
 625                         /* Currently ignored. */
 626                         break;
 627
 628                 case OPT_PermSize:
 629                         /* Currently ignored. */
 630                         break;
 631
 632                 case OPT_ThreadStackSize:
 633                         /* currently ignored */
 634                         break;
 635
 636                 /* Debugging options which can be turned off. */
 637
 638                 case OPT_AlwaysEmitLongBranches:
 639                         opt_AlwaysEmitLongBranches = enable;
 640                         break;
 641
 642                 case OPT_AlwaysMmapFirstPage:
 643                         opt_AlwaysMmapFirstPage = enable;
 644                         break;
 645
 646                 case OPT_CompileAll:
 647                         opt_CompileAll = enable;
 648                         opt_run = false;
 649                         makeinitializations = false;
 650                         break;
 651
 652                 case OPT_CompileMethod:
 653                         opt_CompileMethod = value;
 654                         opt_run = false;
 655                         makeinitializations = false;
 656                         break;
 657
 658                 case OPT_CompileSignature:
 659                         opt_CompileSignature = value;
 660                         break;
 661
 662                 case OPT_DebugExceptions:
 663                         opt_DebugExceptions = enable;
 664                         break;
 665
 666                 case OPT_DebugFinalizer:
 667                         opt_DebugFinalizer = enable;
 668                         break;
 669
 670                 case OPT_DebugLocalReferences:
 671                         opt_DebugLocalReferences = enable;
 672                         break;
 673
 674                 case OPT_DebugLocks:
 675                         opt_DebugLocks = enable;
 676                         break;
 677
 678                 case OPT_DebugPackage:
 679                         opt_DebugPackage = enable;
 680                         break;
 681
 682                 case OPT_DebugPatcher:
 683                         opt_DebugPatcher = enable;
 684                         break;
 685
 686                 case OPT_DebugProperties:
 687                         opt_DebugProperties = enable;
 688                         break;
 689
 690                 case OPT_DebugStackFrameInfo:
 691                         opt_DebugStackFrameInfo = enable;
 692                         break;
 693
 694                 case OPT_DebugStackTrace:
 695                         opt_DebugStackTrace = enable;
 696                         break;
 697
 698                 case OPT_DebugThreads:
 699                         opt_DebugThreads = enable;
 700                         break;
 701
 702 #if defined(ENABLE_DISASSEMBLER)
 703                 case OPT_DisassembleStubs:
 704                         opt_DisassembleStubs = enable;
 705                         break;
 706 #endif
 707
 708 #if defined(ENABLE_OPAGENT)
 709                 case OPT_EnableOpagent:
 710                         opt_EnableOpagent = enable;
 711                         break;
 712 #endif
 713
 714 #if defined(ENABLE_GC_CACAO)
 715                 case OPT_GCDebugRootSet:
 716                         opt_GCDebugRootSet = enable;
 717                         break;
 718
 719                 case OPT_GCStress:
 720                         opt_GCStress = enable;
 721                         break;
 722 #endif
 723
 724 #if defined(ENABLE_INLINING)
 725                 case OPT_Inline:
 726                         opt_Inline = enable;
 727                         break;
 728 #if defined(ENABLE_INLINING_DEBUG) || !defined(NDEBUG)
 729                 case OPT_InlineAll:
 730                         opt_InlineAll = enable;
 731                         break;
 732
 733                 case OPT_InlineCount:
 734                         if (value != NULL)
 735                                 opt_InlineCount = os_atoi(value);
 736                         break;
 737
 738                 case OPT_InlineMaxSize:
 739                         if (value != NULL)
 740                                 opt_InlineMaxSize = os_atoi(value);
 741                         break;
 742
 743                 case OPT_InlineMinSize:
 744                         if (value != NULL)
 745                                 opt_InlineMinSize = os_atoi(value);
 746                         break;
 747 #endif
 748 #endif
 749
 750                 case OPT_PrintConfig:
 751                         opt_PrintConfig = enable;
 752                         break;
 753
 754                 case OPT_PrintWarnings:
 755                         opt_PrintWarnings = enable;
 756                         break;
 757
 758                 case OPT_ProfileGCMemoryUsage:
 759                         if (value == NULL)
 760                                 opt_ProfileGCMemoryUsage = 5;
 761                         else
 762                                 opt_ProfileGCMemoryUsage = os_atoi(value);
 763                         break;
 764
 765                 case OPT_ProfileMemoryUsage:
 766                         if (value == NULL)
 767                                 opt_ProfileMemoryUsage = 5;
 768                         else
 769                                 opt_ProfileMemoryUsage = os_atoi(value);
 770
 771 # if defined(ENABLE_STATISTICS)
 772                         /* we also need statistics */
 773
 774                         opt_stat = true;
 775 # endif
 776                         break;
 777
 778                 case OPT_ProfileMemoryUsageGNUPlot:
 779                         if (value == NULL)
 780                                 filename = "profile.dat";
 781                         else
 782                                 filename = value;
 783
 784                         file = fopen(filename, "w");
 785
 786                         if (file == NULL)
 787 #warning Use below method instead!
 788                                 //os::abort_errno("options_xx: fopen failed");
 789                                 vm_abort("options_xx: fopen failed");
 790
 791                         opt_ProfileMemoryUsageGNUPlot = file;
 792                         break;
 793
 794                 case OPT_RegallocSpillAll:
 795                         opt_RegallocSpillAll = enable;
 796                         break;
 797
 798 #if defined(ENABLE_REPLACEMENT)
 799                 case OPT_TestReplacement:
 800                         opt_TestReplacement = enable;
 801                         break;
 802 #endif
 803
 804                 case OPT_TraceBuiltinCalls:
 805                         opt_TraceBuiltinCalls = enable;
 806                         break;
 807
 808                 case OPT_TraceCompilerCalls:
 809                         opt_TraceCompilerCalls = enable;
 810                         break;
 811
 812                 case OPT_TraceExceptions:
 813                         opt_TraceExceptions = enable;
 814                         break;
 815
 816                 case OPT_TraceHPI:
 817                         opt_TraceHPI = enable;
 818                         break;
 819
 820 #if defined(ENABLE_INLINING) && !defined(NDEBUG)
 821                 case OPT_TraceInlining:
 822                         if (value == NULL)
 823                                 opt_TraceInlining = 1;
 824                         else
 825                                 opt_TraceInlining = os_atoi(value);
 826                         break;
 827 #endif
 828
 829                 case OPT_TraceJavaCalls:
 830                         opt_verbosecall = enable;
 831                         opt_TraceJavaCalls = enable;
 832                         break;
 833
 834                 case OPT_TraceJNICalls:
 835                         opt_TraceJNICalls = enable;
 836                         break;
 837
 838                 case OPT_TraceJVMCalls:
 839                         opt_TraceJVMCalls = enable;
 840                         break;
 841
 842                 case OPT_TraceJVMCallsVerbose:
 843                         opt_TraceJVMCallsVerbose = enable;
 844                         break;
 845
 846                 case OPT_TraceLinkClass:
 847                         opt_TraceLinkClass = enable;
 848                         break;
 849
 850 #if defined(ENABLE_REPLACEMENT)
 851                 case OPT_TraceReplacement:
 852                         if (value == NULL)
 853                                 opt_TraceReplacement = 1;
 854                         else
 855                                 opt_TraceReplacement = os_atoi(value);
 856                         break;
 857 #endif
 858
 859                 case OPT_TraceSubsystemInitialization:
 860                         opt_TraceSubsystemInitialization = enable;
 861                         break;
 862
 863                 case OPT_TraceTraps:
 864                         opt_TraceTraps = enable;
 865                         break;
 866
 867 #if defined(ENABLE_VMLOG)
 868                 case OPT_Vmlog:
 869                         if (value == NULL)
 870                                 vmlog_cacao_set_prefix("vmlog");
 871                         else
 872                                 vmlog_cacao_set_prefix(value);
 873                         opt_verbosecall = 1;
 874                         opt_TraceJavaCalls = 1;
 875                         break;
 876
 877                 case OPT_VmlogStrings:
 878                         if (value != NULL)
 879                                 vmlog_cacao_set_stringprefix(value);
 880                         break;
 881
 882                 case OPT_VmlogIgnore:
 883                         if (value != NULL)
 884                                 vmlog_cacao_set_ignoreprefix(value);
 885                         break;
 886 #endif
 887
 888                 default:
 889                         fprintf(stderr, "Unknown -XX option: %s\n", name);
 890                         break;
 891                 }
 892         }
 893 }
 894
 895
 896 /*
 897  * These are local overrides for various environment variables in Emacs.
 898  * Please do not remove this and leave it at the end of the file, where
 899  * Emacs will automagically detect them.
 900  * ---------------------------------------------------------------------
 901  * Local variables:
 902  * mode: c
 903  * indent-tabs-mode: t
 904  * c-basic-offset: 4
 905  * tab-width: 4
 906  * End:
 907  */