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