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 bool     opt_TraceJMMCalls                = false;
 211 int      opt_TraceJNICalls                = 0;
 212 int      opt_TraceJVMCalls                = 0;
 213 int      opt_TraceJVMCallsVerbose         = 0;
 214 int      opt_TraceLinkClass               = 0;
 215 #if defined(ENABLE_REPLACEMENT)
 216 int      opt_TraceReplacement             = 0;
 217 #endif
 218 int      opt_TraceSubsystemInitialization = 0;
 219 int      opt_TraceTraps                   = 0;
 220
 221
 222 enum {
 223         OPT_TYPE_BOOLEAN,
 224         OPT_TYPE_VALUE
 225 };
 226
 227 enum {
 228         /* Options which must always be available (production options in
 229            HotSpot). */
 230
 231         OPT_MaxDirectMemorySize,
 232         OPT_MaxPermSize,
 233         OPT_PermSize,
 234         OPT_ThreadStackSize,
 235
 236         /* Debugging options which can be turned off. */
 237
 238         OPT_AlwaysEmitLongBranches,
 239         OPT_AlwaysMmapFirstPage,
 240         OPT_CompileAll,
 241         OPT_CompileMethod,
 242         OPT_CompileSignature,
 243         OPT_DebugExceptions,
 244         OPT_DebugFinalizer,
 245         OPT_DebugLocalReferences,
 246         OPT_DebugLocks,
 247         OPT_DebugPackage,
 248         OPT_DebugPatcher,
 249         OPT_DebugProperties,
 250         OPT_DebugStackFrameInfo,
 251         OPT_DebugStackTrace,
 252         OPT_DebugThreads,
 253         OPT_DisassembleStubs,
 254         OPT_EnableOpagent,
 255         OPT_GCDebugRootSet,
 256         OPT_GCStress,
 257         OPT_Inline,
 258         OPT_InlineAll,
 259         OPT_InlineCount,
 260         OPT_InlineMaxSize,
 261         OPT_InlineMinSize,
 262         OPT_PrintConfig,
 263         OPT_PrintWarnings,
 264         OPT_ProfileGCMemoryUsage,
 265         OPT_ProfileMemoryUsage,
 266         OPT_ProfileMemoryUsageGNUPlot,
 267         OPT_RegallocSpillAll,
 268         OPT_TestReplacement,
 269         OPT_TraceBuiltinCalls,
 270         OPT_TraceCompilerCalls,
 271         OPT_TraceExceptions,
 272         OPT_TraceHPI,
 273         OPT_TraceInlining,
 274         OPT_TraceJavaCalls,
 275         OPT_TraceJMMCalls,
 276         OPT_TraceJNICalls,
 277         OPT_TraceJVMCalls,
 278         OPT_TraceJVMCallsVerbose,
 279         OPT_TraceLinkClass,
 280         OPT_TraceReplacement,
 281         OPT_TraceSubsystemInitialization,
 282         OPT_TraceTraps,
 283         OPT_Vmlog,
 284         OPT_VmlogStrings,
 285         OPT_VmlogIgnore
 286 };
 287
 288
 289 option_t options_XX[] = {
 290         /* Options which must always be available (production options in
 291            HotSpot). */
 292
 293         { "MaxDirectMemorySize",          OPT_MaxDirectMemorySize,          OPT_TYPE_VALUE,   "Maximum total size of NIO direct-buffer allocations" },
 294         { "MaxPermSize",                  OPT_MaxPermSize,                  OPT_TYPE_VALUE,   "not implemented" },
 295         { "PermSize",                     OPT_PermSize,                     OPT_TYPE_VALUE,   "not implemented" },
 296         { "ThreadStackSize",              OPT_ThreadStackSize,              OPT_TYPE_VALUE,   "TODO" },
 297
 298         /* Debugging options which can be turned off. */
 299
 300         { "AlwaysEmitLongBranches",       OPT_AlwaysEmitLongBranches,       OPT_TYPE_BOOLEAN, "Always emit long-branches." },
 301         { "AlwaysMmapFirstPage",          OPT_AlwaysMmapFirstPage,          OPT_TYPE_BOOLEAN, "Always mmap memory page at address 0x0." },
 302         { "CompileAll",                   OPT_CompileAll,                   OPT_TYPE_BOOLEAN, "compile all methods, no execution" },
 303         { "CompileMethod",                OPT_CompileMethod,                OPT_TYPE_VALUE,   "compile only a specific method" },
 304         { "CompileSignature",             OPT_CompileSignature,             OPT_TYPE_VALUE,   "specify signature for a specific method" },
 305         { "DebugExceptions",              OPT_DebugExceptions,              OPT_TYPE_BOOLEAN, "debug exceptions" },
 306         { "DebugFinalizer",               OPT_DebugFinalizer,               OPT_TYPE_BOOLEAN, "debug finalizer thread" },
 307         { "DebugLocalReferences",         OPT_DebugLocalReferences,         OPT_TYPE_BOOLEAN, "print debug information for local reference tables" },
 308         { "DebugLocks",                   OPT_DebugLocks,                   OPT_TYPE_BOOLEAN, "print debug information for locks" },
 309         { "DebugPackage",                 OPT_DebugPackage,                 OPT_TYPE_BOOLEAN, "debug Java boot-packages" },
 310         { "DebugPatcher",                 OPT_DebugPatcher,                 OPT_TYPE_BOOLEAN, "debug JIT code patching" },
 311         { "DebugProperties",              OPT_DebugProperties,              OPT_TYPE_BOOLEAN, "print debug information for properties" },
 312         { "DebugStackFrameInfo",          OPT_DebugStackFrameInfo,          OPT_TYPE_BOOLEAN, "TODO" },
 313         { "DebugStackTrace",              OPT_DebugStackTrace,              OPT_TYPE_BOOLEAN, "debug stacktrace creation" },
 314         { "DebugThreads",                 OPT_DebugThreads,                 OPT_TYPE_BOOLEAN, "print debug information for threads" },
 315 #if defined(ENABLE_DISASSEMBLER)
 316         { "DisassembleStubs",             OPT_DisassembleStubs,             OPT_TYPE_BOOLEAN, "disassemble builtin and native stubs when generated" },
 317 #endif
 318 #if defined(ENABLE_OPAGENT)
 319         { "EnableOpagent",                OPT_EnableOpagent,                OPT_TYPE_BOOLEAN, "enable providing JIT output to Oprofile" },
 320 #endif
 321 #if defined(ENABLE_GC_CACAO)
 322         { "GCDebugRootSet",               OPT_GCDebugRootSet,               OPT_TYPE_BOOLEAN, "GC: print root-set at collection" },
 323         { "GCStress",                     OPT_GCStress,                     OPT_TYPE_BOOLEAN, "GC: forced collection at every allocation" },
 324 #endif
 325 #if defined(ENABLE_INLINING)
 326         { "Inline",                       OPT_Inline,                       OPT_TYPE_BOOLEAN, "enable method inlining" },
 327 #if defined(ENABLE_INLINING_DEBUG) || !defined(NDEBUG)
 328         { "InlineAll",                    OPT_InlineAll,                    OPT_TYPE_BOOLEAN, "use inlining in all compilations" },
 329         { "InlineCount",                  OPT_InlineCount,                  OPT_TYPE_VALUE,   "stop inlining after the given number of roots" },
 330         { "InlineMaxSize",                OPT_InlineMaxSize,                OPT_TYPE_VALUE,   "maximum size for inlined result" },
 331         { "InlineMinSize",                OPT_InlineMinSize,                OPT_TYPE_VALUE,   "minimum size for inlined result" },
 332 #endif
 333 #endif
 334         { "PrintConfig",                  OPT_PrintConfig,                  OPT_TYPE_BOOLEAN, "print VM configuration" },
 335         { "PrintWarnings",                OPT_PrintWarnings,                OPT_TYPE_BOOLEAN, "print warnings about suspicious behavior"},
 336         { "ProfileGCMemoryUsage",         OPT_ProfileGCMemoryUsage,         OPT_TYPE_VALUE,   "profiles GC memory usage in the given interval, <value> is in seconds (default: 5)" },
 337         { "ProfileMemoryUsage",           OPT_ProfileMemoryUsage,           OPT_TYPE_VALUE,   "TODO" },
 338         { "ProfileMemoryUsageGNUPlot",    OPT_ProfileMemoryUsageGNUPlot,    OPT_TYPE_VALUE,   "TODO" },
 339         { "RegallocSpillAll",             OPT_RegallocSpillAll,             OPT_TYPE_BOOLEAN, "spill all variables to the stack" },
 340 #if defined(ENABLE_REPLACEMENT)
 341         { "TestReplacement",              OPT_TestReplacement,              OPT_TYPE_BOOLEAN, "activate all replacement points during code generation" },
 342 #endif
 343         { "TraceBuiltinCalls",            OPT_TraceBuiltinCalls,            OPT_TYPE_BOOLEAN, "trace calls to VM builtin functions" },
 344         { "TraceCompilerCalls",           OPT_TraceCompilerCalls,           OPT_TYPE_BOOLEAN, "trace JIT compiler calls" },
 345         { "TraceExceptions",              OPT_TraceExceptions,              OPT_TYPE_BOOLEAN, "trace Exception throwing" },
 346         { "TraceHPI",                     OPT_TraceHPI,                     OPT_TYPE_BOOLEAN, "Trace Host Porting Interface (HPI)" },
 347 #if defined(ENABLE_INLINING) && !defined(NDEBUG)
 348         { "TraceInlining",                OPT_TraceInlining,                OPT_TYPE_VALUE,   "trace method inlining with the given verbosity level (default: 1)" },
 349 #endif
 350 #if !defined(ENABLE_VMLOG)
 351         { "TraceJavaCalls",               OPT_TraceJavaCalls,               OPT_TYPE_BOOLEAN, "trace Java method calls" },
 352 #endif
 353         { "TraceJMMCalls",                OPT_TraceJMMCalls,                OPT_TYPE_BOOLEAN, "trace JMM method calls" },
 354         { "TraceJNICalls",                OPT_TraceJNICalls,                OPT_TYPE_BOOLEAN, "trace JNI method calls" },
 355         { "TraceJVMCalls",                OPT_TraceJVMCalls,                OPT_TYPE_BOOLEAN, "trace JVM method calls but omit very frequent ones" },
 356         { "TraceJVMCallsVerbose",         OPT_TraceJVMCallsVerbose,         OPT_TYPE_BOOLEAN, "trace all JVM method calls" },
 357         { "TraceLinkClass",               OPT_TraceLinkClass,               OPT_TYPE_BOOLEAN, "trace class linking" },
 358 #if defined(ENABLE_REPLACEMENT)
 359         { "TraceReplacement",             OPT_TraceReplacement,             OPT_TYPE_VALUE,   "trace on-stack replacement with the given verbosity level (default: 1)" },
 360 #endif
 361         { "TraceSubsystemInitialization", OPT_TraceSubsystemInitialization, OPT_TYPE_BOOLEAN, "trace initialization of subsystems" },
 362         { "TraceTraps",                   OPT_TraceTraps,                   OPT_TYPE_BOOLEAN, "trace traps generated by JIT code" },
 363 #if defined(ENABLE_VMLOG)
 364         { "Vmlog",                        OPT_Vmlog,                        OPT_TYPE_VALUE,   "prefix for vmlog trace files (enables vmlog)" },
 365         { "VmlogStrings",                 OPT_VmlogStrings,                 OPT_TYPE_VALUE,   "prefix of vmlog string file to load" },
 366         { "VmlogIgnore",                  OPT_VmlogIgnore,                  OPT_TYPE_VALUE,   "prefix of vmlog ignore file to load" },
 367 #endif
 368
 369         /* end marker */
 370
 371         { NULL,                           -1,                               -1,               NULL }
 372 };
 373
 374
 375 /* options_get *****************************************************************
 376
 377    DOCUMENT ME!!!
 378
 379 *******************************************************************************/
 380
 381 int options_get(opt_struct *opts, JavaVMInitArgs *vm_args)
 382 {
 383         char *option;
 384         int   i;
 385
 386         if (opt_index >= vm_args->nOptions)
 387                 return OPT_DONE;
 388
 389         /* get the current option */
 390
 391         option = vm_args->options[opt_index].optionString;
 392
 393         if ((option == NULL) || (option[0] != '-'))
 394                 return OPT_DONE;
 395
 396         for (i = 0; opts[i].name; i++) {
 397                 if (!opts[i].arg) {
 398                         /* boolean option found */
 399
 400                         if (strcmp(option + 1, opts[i].name) == 0) {
 401                                 opt_index++;
 402                                 return opts[i].value;
 403                         }
 404
 405                 } else {
 406                         /* parameter option found */
 407
 408                         /* with a space between */
 409
 410                         if (strcmp(option + 1, opts[i].name) == 0) {
 411                                 opt_index++;
 412
 413                                 if (opt_index < vm_args->nOptions) {
 414                                         opt_arg = os_strdup(vm_args->options[opt_index].optionString);
 415                                         opt_index++;
 416                                         return opts[i].value;
 417                                 }
 418
 419                                 return OPT_ERROR;
 420
 421                         } else {
 422                                 /* parameter and option have no space between */
 423
 424                                 /* FIXME: this assumption is plain wrong, hits you if there is a
 425                                  * parameter with no argument starting with same letter as param with argument
 426                                  * but named after that one, ouch! */
 427
 428                                 size_t l = os_strlen(opts[i].name);
 429
 430                                 if (os_strlen(option + 1) > l) {
 431                                         if (memcmp(option + 1, opts[i].name, l) == 0) {
 432                                                 opt_index++;
 433                                                 opt_arg = os_strdup(option + 1 + l);
 434                                                 return opts[i].value;
 435                                         }
 436                                 }
 437                         }
 438                 }
 439         }
 440
 441         return OPT_ERROR;
 442 }
 443
 444
 445 /* options_xxusage *************************************************************
 446
 447    Print usage message for debugging options.
 448
 449 *******************************************************************************/
 450
 451 static void options_xxusage(void)
 452 {
 453         option_t   *opt;
 454         int         length;
 455         int         i;
 456         const char *c;
 457
 458         /* Prevent compiler warning. */
 459
 460         length = 0;
 461
 462         for (opt = options_XX; opt->name != NULL; opt++) {
 463                 printf("    -XX:");
 464
 465                 switch (opt->type) {
 466                 case OPT_TYPE_BOOLEAN:
 467                         printf("+%s", opt->name);
 468                         length = os_strlen("    -XX:+") + os_strlen(opt->name);
 469                         break;
 470
 471                 case OPT_TYPE_VALUE:
 472                         printf("%s=<value>", opt->name);
 473                         length = os_strlen("    -XX:") + os_strlen(opt->name) +
 474                                 os_strlen("=<value>");
 475                         break;
 476
 477                 default:
 478                         vm_abort("options_xxusage: unkown option type %d", opt->type);
 479                 }
 480
 481                 /* Check if the help fits into one 80-column line.
 482                    Documentation starts at column 29. */
 483
 484                 if (length < (29 - 1)) {
 485                         /* Print missing spaces up to column 29. */
 486
 487                         for (i = length; i < 29; i++)
 488                                 printf(" ");
 489                 }
 490                 else {
 491                         printf("\n");
 492                         printf("                             "); /* 29 spaces */
 493                 }
 494
 495                 /* Check documentation length. */
 496
 497                 length = os_strlen(opt->doc);
 498
 499                 if (length < (80 - 29)) {
 500                         printf("%s", opt->doc);
 501                 }
 502                 else {
 503                         for (c = opt->doc, i = 29; *c != 0; c++, i++) {
 504                                 /* If we are at the end of the line, break it. */
 505
 506                                 if (i == 80) {
 507                                         printf("\n");
 508                                         printf("                             "); /* 29 spaces */
 509                                         i = 29;
 510                                 }
 511
 512                                 printf("%c", *c);
 513                         }
 514                 }
 515
 516                 printf("\n");
 517         }
 518
 519         /* exit with error code */
 520
 521         exit(1);
 522 }
 523
 524
 525 /* options_xx ******************************************************************
 526
 527    Handle -XX: options.
 528
 529 *******************************************************************************/
 530
 531 void options_xx(JavaVMInitArgs *vm_args)
 532 {
 533         const char *name;
 534         const char *start;
 535         char       *end;
 536         int         length;
 537         int         enable;
 538         char       *value;
 539         option_t   *opt;
 540         char       *filename;
 541         FILE       *file;
 542         int         i;
 543
 544         /* Iterate over all passed options. */
 545
 546         for (i = 0; i < vm_args->nOptions; i++) {
 547                 /* Get the current option. */
 548
 549                 name = vm_args->options[i].optionString;
 550
 551                 /* Check for help (-XX). */
 552
 553                 if (strcmp(name, "-XX") == 0)
 554                         options_xxusage();
 555
 556                 /* Check if the option start with -XX. */
 557
 558                 start = strstr(name, "-XX:");
 559
 560                 if ((start == NULL) || (start != name))
 561                         continue;
 562
 563                 /* Check if the option is a boolean option. */
 564
 565                 if (name[4] == '+') {
 566                         start  = name + 4 + 1;
 567                         enable = 1;
 568                 }
 569                 else if (name[4] == '-') {
 570                         start  = name + 4 + 1;
 571                         enable = 0;
 572                 }
 573                 else {
 574                         start  = name + 4;
 575                         enable = -1;
 576                 }
 577
 578                 /* Search for a '=' in the option name and get the option name
 579                    length and the value of the option. */
 580
 581                 end = strchr(start, '=');
 582
 583                 if (end == NULL) {
 584                         length = os_strlen(start);
 585                         value  = NULL;
 586                 }
 587                 else {
 588                         length = end - start;
 589                         value  = end + 1;
 590                 }
 591
 592                 /* Search the option in the option array. */
 593
 594                 for (opt = options_XX; opt->name != NULL; opt++) {
 595                         if (strncmp(opt->name, start, length) == 0) {
 596                                 /* Check if the options passed fits to the type. */
 597
 598                                 switch (opt->type) {
 599                                 case OPT_TYPE_BOOLEAN:
 600                                         if ((enable == -1) || (value != NULL))
 601                                                 options_xxusage();
 602                                         break;
 603                                 case OPT_TYPE_VALUE:
 604                                         if ((enable != -1) || (value == NULL))
 605                                                 options_xxusage();
 606                                         break;
 607                                 default:
 608                                         vm_abort("options_xx: unknown option type %d for option %s",
 609                                                          opt->type, opt->name);
 610                                 }
 611
 612                                 break;
 613                         }
 614                 }
 615
 616                 /* Process the option. */
 617
 618                 switch (opt->value) {
 619
 620                 /* Options which must always be available (production options
 621                    in HotSpot). */
 622
 623                 case OPT_MaxDirectMemorySize:
 624                         opt_MaxDirectMemorySize = os_atoi(value);
 625                         break;
 626
 627                 case OPT_MaxPermSize:
 628                         /* Currently ignored. */
 629                         break;
 630
 631                 case OPT_PermSize:
 632                         /* Currently ignored. */
 633                         break;
 634
 635                 case OPT_ThreadStackSize:
 636                         /* currently ignored */
 637                         break;
 638
 639                 /* Debugging options which can be turned off. */
 640
 641                 case OPT_AlwaysEmitLongBranches:
 642                         opt_AlwaysEmitLongBranches = enable;
 643                         break;
 644
 645                 case OPT_AlwaysMmapFirstPage:
 646                         opt_AlwaysMmapFirstPage = enable;
 647                         break;
 648
 649                 case OPT_CompileAll:
 650                         opt_CompileAll = enable;
 651                         opt_run = false;
 652                         makeinitializations = false;
 653                         break;
 654
 655                 case OPT_CompileMethod:
 656                         opt_CompileMethod = value;
 657                         opt_run = false;
 658                         makeinitializations = false;
 659                         break;
 660
 661                 case OPT_CompileSignature:
 662                         opt_CompileSignature = value;
 663                         break;
 664
 665                 case OPT_DebugExceptions:
 666                         opt_DebugExceptions = enable;
 667                         break;
 668
 669                 case OPT_DebugFinalizer:
 670                         opt_DebugFinalizer = enable;
 671                         break;
 672
 673                 case OPT_DebugLocalReferences:
 674                         opt_DebugLocalReferences = enable;
 675                         break;
 676
 677                 case OPT_DebugLocks:
 678                         opt_DebugLocks = enable;
 679                         break;
 680
 681                 case OPT_DebugPackage:
 682                         opt_DebugPackage = enable;
 683                         break;
 684
 685                 case OPT_DebugPatcher:
 686                         opt_DebugPatcher = enable;
 687                         break;
 688
 689                 case OPT_DebugProperties:
 690                         opt_DebugProperties = enable;
 691                         break;
 692
 693                 case OPT_DebugStackFrameInfo:
 694                         opt_DebugStackFrameInfo = enable;
 695                         break;
 696
 697                 case OPT_DebugStackTrace:
 698                         opt_DebugStackTrace = enable;
 699                         break;
 700
 701                 case OPT_DebugThreads:
 702                         opt_DebugThreads = enable;
 703                         break;
 704
 705 #if defined(ENABLE_DISASSEMBLER)
 706                 case OPT_DisassembleStubs:
 707                         opt_DisassembleStubs = enable;
 708                         break;
 709 #endif
 710
 711 #if defined(ENABLE_OPAGENT)
 712                 case OPT_EnableOpagent:
 713                         opt_EnableOpagent = enable;
 714                         break;
 715 #endif
 716
 717 #if defined(ENABLE_GC_CACAO)
 718                 case OPT_GCDebugRootSet:
 719                         opt_GCDebugRootSet = enable;
 720                         break;
 721
 722                 case OPT_GCStress:
 723                         opt_GCStress = enable;
 724                         break;
 725 #endif
 726
 727 #if defined(ENABLE_INLINING)
 728                 case OPT_Inline:
 729                         opt_Inline = enable;
 730                         break;
 731 #if defined(ENABLE_INLINING_DEBUG) || !defined(NDEBUG)
 732                 case OPT_InlineAll:
 733                         opt_InlineAll = enable;
 734                         break;
 735
 736                 case OPT_InlineCount:
 737                         if (value != NULL)
 738                                 opt_InlineCount = os_atoi(value);
 739                         break;
 740
 741                 case OPT_InlineMaxSize:
 742                         if (value != NULL)
 743                                 opt_InlineMaxSize = os_atoi(value);
 744                         break;
 745
 746                 case OPT_InlineMinSize:
 747                         if (value != NULL)
 748                                 opt_InlineMinSize = os_atoi(value);
 749                         break;
 750 #endif
 751 #endif
 752
 753                 case OPT_PrintConfig:
 754                         opt_PrintConfig = enable;
 755                         break;
 756
 757                 case OPT_PrintWarnings:
 758                         opt_PrintWarnings = enable;
 759                         break;
 760
 761                 case OPT_ProfileGCMemoryUsage:
 762                         if (value == NULL)
 763                                 opt_ProfileGCMemoryUsage = 5;
 764                         else
 765                                 opt_ProfileGCMemoryUsage = os_atoi(value);
 766                         break;
 767
 768                 case OPT_ProfileMemoryUsage:
 769                         if (value == NULL)
 770                                 opt_ProfileMemoryUsage = 5;
 771                         else
 772                                 opt_ProfileMemoryUsage = os_atoi(value);
 773
 774 # if defined(ENABLE_STATISTICS)
 775                         /* we also need statistics */
 776
 777                         opt_stat = true;
 778 # endif
 779                         break;
 780
 781                 case OPT_ProfileMemoryUsageGNUPlot:
 782                         if (value == NULL)
 783                                 filename = "profile.dat";
 784                         else
 785                                 filename = value;
 786
 787                         file = fopen(filename, "w");
 788
 789                         if (file == NULL)
 790 #warning Use below method instead!
 791                                 //os::abort_errno("options_xx: fopen failed");
 792                                 vm_abort("options_xx: fopen failed");
 793
 794                         opt_ProfileMemoryUsageGNUPlot = file;
 795                         break;
 796
 797                 case OPT_RegallocSpillAll:
 798                         opt_RegallocSpillAll = enable;
 799                         break;
 800
 801 #if defined(ENABLE_REPLACEMENT)
 802                 case OPT_TestReplacement:
 803                         opt_TestReplacement = enable;
 804                         break;
 805 #endif
 806
 807                 case OPT_TraceBuiltinCalls:
 808                         opt_TraceBuiltinCalls = enable;
 809                         break;
 810
 811                 case OPT_TraceCompilerCalls:
 812                         opt_TraceCompilerCalls = enable;
 813                         break;
 814
 815                 case OPT_TraceExceptions:
 816                         opt_TraceExceptions = enable;
 817                         break;
 818
 819                 case OPT_TraceHPI:
 820                         opt_TraceHPI = enable;
 821                         break;
 822
 823 #if defined(ENABLE_INLINING) && !defined(NDEBUG)
 824                 case OPT_TraceInlining:
 825                         if (value == NULL)
 826                                 opt_TraceInlining = 1;
 827                         else
 828                                 opt_TraceInlining = os_atoi(value);
 829                         break;
 830 #endif
 831
 832                 case OPT_TraceJavaCalls:
 833                         opt_verbosecall = enable;
 834                         opt_TraceJavaCalls = enable;
 835                         break;
 836
 837                 case OPT_TraceJMMCalls:
 838                         opt_TraceJMMCalls = enable;
 839                         break;
 840
 841                 case OPT_TraceJNICalls:
 842                         opt_TraceJNICalls = enable;
 843                         break;
 844
 845                 case OPT_TraceJVMCalls:
 846                         opt_TraceJVMCalls = enable;
 847                         break;
 848
 849                 case OPT_TraceJVMCallsVerbose:
 850                         opt_TraceJVMCallsVerbose = enable;
 851                         break;
 852
 853                 case OPT_TraceLinkClass:
 854                         opt_TraceLinkClass = enable;
 855                         break;
 856
 857 #if defined(ENABLE_REPLACEMENT)
 858                 case OPT_TraceReplacement:
 859                         if (value == NULL)
 860                                 opt_TraceReplacement = 1;
 861                         else
 862                                 opt_TraceReplacement = os_atoi(value);
 863                         break;
 864 #endif
 865
 866                 case OPT_TraceSubsystemInitialization:
 867                         opt_TraceSubsystemInitialization = enable;
 868                         break;
 869
 870                 case OPT_TraceTraps:
 871                         opt_TraceTraps = enable;
 872                         break;
 873
 874 #if defined(ENABLE_VMLOG)
 875                 case OPT_Vmlog:
 876                         if (value == NULL)
 877                                 vmlog_cacao_set_prefix("vmlog");
 878                         else
 879                                 vmlog_cacao_set_prefix(value);
 880                         opt_verbosecall = 1;
 881                         opt_TraceJavaCalls = 1;
 882                         break;
 883
 884                 case OPT_VmlogStrings:
 885                         if (value != NULL)
 886                                 vmlog_cacao_set_stringprefix(value);
 887                         break;
 888
 889                 case OPT_VmlogIgnore:
 890                         if (value != NULL)
 891                                 vmlog_cacao_set_ignoreprefix(value);
 892                         break;
 893 #endif
 894
 895                 default:
 896                         fprintf(stderr, "Unknown -XX option: %s\n", name);
 897                         break;
 898                 }
 899         }
 900 }
 901
 902
 903 /*
 904  * These are local overrides for various environment variables in Emacs.
 905  * Please do not remove this and leave it at the end of the file, where
 906  * Emacs will automagically detect them.
 907  * ---------------------------------------------------------------------
 908  * Local variables:
 909  * mode: c
 910  * indent-tabs-mode: t
 911  * c-basic-offset: 4
 912  * tab-width: 4
 913  * End:
 914  */