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