src/vm/options.c

   1 /* src/vm/options.c - contains global options
   2
   3    Copyright (C) 1996-2005, 2006, 2007, 2008, 2010
   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 #if defined(ENABLE_JVMTI)
 215 int      opt_TraceJVMTICalls              = 0;
 216 #endif
 217 int      opt_TraceLinkClass               = 0;
 218 #if defined(ENABLE_REPLACEMENT)
 219 int      opt_TraceReplacement             = 0;
 220 #endif
 221 int      opt_TraceSubsystemInitialization = 0;
 222 int      opt_TraceTraps                   = 0;
 223
 224
 225 enum {
 226         OPT_TYPE_BOOLEAN,
 227         OPT_TYPE_VALUE
 228 };
 229
 230 enum {
 231         /* Options which must always be available (production options in
 232            HotSpot). */
 233
 234         OPT_MaxDirectMemorySize,
 235         OPT_MaxPermSize,
 236         OPT_PermSize,
 237         OPT_ThreadStackSize,
 238
 239         /* Debugging options which can be turned off. */
 240
 241         OPT_AlwaysEmitLongBranches,
 242         OPT_AlwaysMmapFirstPage,
 243         OPT_CompileAll,
 244         OPT_CompileMethod,
 245         OPT_CompileSignature,
 246         OPT_DebugExceptions,
 247         OPT_DebugFinalizer,
 248         OPT_DebugLocalReferences,
 249         OPT_DebugLocks,
 250         OPT_DebugPackage,
 251         OPT_DebugPatcher,
 252         OPT_DebugProperties,
 253         OPT_DebugStackFrameInfo,
 254         OPT_DebugStackTrace,
 255         OPT_DebugThreads,
 256         OPT_DisassembleStubs,
 257         OPT_EnableOpagent,
 258         OPT_GCDebugRootSet,
 259         OPT_GCStress,
 260         OPT_Inline,
 261         OPT_InlineAll,
 262         OPT_InlineCount,
 263         OPT_InlineMaxSize,
 264         OPT_InlineMinSize,
 265         OPT_PrintConfig,
 266         OPT_PrintWarnings,
 267         OPT_ProfileGCMemoryUsage,
 268         OPT_ProfileMemoryUsage,
 269         OPT_ProfileMemoryUsageGNUPlot,
 270         OPT_RegallocSpillAll,
 271         OPT_TestReplacement,
 272         OPT_TraceBuiltinCalls,
 273         OPT_TraceCompilerCalls,
 274         OPT_TraceExceptions,
 275         OPT_TraceHPI,
 276         OPT_TraceInlining,
 277         OPT_TraceJavaCalls,
 278         OPT_TraceJMMCalls,
 279         OPT_TraceJNICalls,
 280         OPT_TraceJVMCalls,
 281         OPT_TraceJVMCallsVerbose,
 282         OPT_TraceJVMTICalls,
 283         OPT_TraceLinkClass,
 284         OPT_TraceReplacement,
 285         OPT_TraceSubsystemInitialization,
 286         OPT_TraceTraps,
 287         OPT_Vmlog,
 288         OPT_VmlogStrings,
 289         OPT_VmlogIgnore
 290 };
 291
 292
 293 option_t options_XX[] = {
 294         /* Options which must always be available (production options in
 295            HotSpot). */
 296
 297         { "MaxDirectMemorySize",          OPT_MaxDirectMemorySize,          OPT_TYPE_VALUE,   "Maximum total size of NIO direct-buffer allocations" },
 298         { "MaxPermSize",                  OPT_MaxPermSize,                  OPT_TYPE_VALUE,   "not implemented" },
 299         { "PermSize",                     OPT_PermSize,                     OPT_TYPE_VALUE,   "not implemented" },
 300         { "ThreadStackSize",              OPT_ThreadStackSize,              OPT_TYPE_VALUE,   "TODO" },
 301
 302         /* Debugging options which can be turned off. */
 303
 304         { "AlwaysEmitLongBranches",       OPT_AlwaysEmitLongBranches,       OPT_TYPE_BOOLEAN, "Always emit long-branches." },
 305         { "AlwaysMmapFirstPage",          OPT_AlwaysMmapFirstPage,          OPT_TYPE_BOOLEAN, "Always mmap memory page at address 0x0." },
 306         { "CompileAll",                   OPT_CompileAll,                   OPT_TYPE_BOOLEAN, "compile all methods, no execution" },
 307         { "CompileMethod",                OPT_CompileMethod,                OPT_TYPE_VALUE,   "compile only a specific method" },
 308         { "CompileSignature",             OPT_CompileSignature,             OPT_TYPE_VALUE,   "specify signature for a specific method" },
 309         { "DebugExceptions",              OPT_DebugExceptions,              OPT_TYPE_BOOLEAN, "debug exceptions" },
 310         { "DebugFinalizer",               OPT_DebugFinalizer,               OPT_TYPE_BOOLEAN, "debug finalizer thread" },
 311         { "DebugLocalReferences",         OPT_DebugLocalReferences,         OPT_TYPE_BOOLEAN, "print debug information for local reference tables" },
 312         { "DebugLocks",                   OPT_DebugLocks,                   OPT_TYPE_BOOLEAN, "print debug information for locks" },
 313         { "DebugPackage",                 OPT_DebugPackage,                 OPT_TYPE_BOOLEAN, "debug Java boot-packages" },
 314         { "DebugPatcher",                 OPT_DebugPatcher,                 OPT_TYPE_BOOLEAN, "debug JIT code patching" },
 315         { "DebugProperties",              OPT_DebugProperties,              OPT_TYPE_BOOLEAN, "print debug information for properties" },
 316         { "DebugStackFrameInfo",          OPT_DebugStackFrameInfo,          OPT_TYPE_BOOLEAN, "TODO" },
 317         { "DebugStackTrace",              OPT_DebugStackTrace,              OPT_TYPE_BOOLEAN, "debug stacktrace creation" },
 318         { "DebugThreads",                 OPT_DebugThreads,                 OPT_TYPE_BOOLEAN, "print debug information for threads" },
 319 #if defined(ENABLE_DISASSEMBLER)
 320         { "DisassembleStubs",             OPT_DisassembleStubs,             OPT_TYPE_BOOLEAN, "disassemble builtin and native stubs when generated" },
 321 #endif
 322 #if defined(ENABLE_OPAGENT)
 323         { "EnableOpagent",                OPT_EnableOpagent,                OPT_TYPE_BOOLEAN, "enable providing JIT output to Oprofile" },
 324 #endif
 325 #if defined(ENABLE_GC_CACAO)
 326         { "GCDebugRootSet",               OPT_GCDebugRootSet,               OPT_TYPE_BOOLEAN, "GC: print root-set at collection" },
 327         { "GCStress",                     OPT_GCStress,                     OPT_TYPE_BOOLEAN, "GC: forced collection at every allocation" },
 328 #endif
 329 #if defined(ENABLE_INLINING)
 330         { "Inline",                       OPT_Inline,                       OPT_TYPE_BOOLEAN, "enable method inlining" },
 331 #if defined(ENABLE_INLINING_DEBUG) || !defined(NDEBUG)
 332         { "InlineAll",                    OPT_InlineAll,                    OPT_TYPE_BOOLEAN, "use inlining in all compilations" },
 333         { "InlineCount",                  OPT_InlineCount,                  OPT_TYPE_VALUE,   "stop inlining after the given number of roots" },
 334         { "InlineMaxSize",                OPT_InlineMaxSize,                OPT_TYPE_VALUE,   "maximum size for inlined result" },
 335         { "InlineMinSize",                OPT_InlineMinSize,                OPT_TYPE_VALUE,   "minimum size for inlined result" },
 336 #endif
 337 #endif
 338         { "PrintConfig",                  OPT_PrintConfig,                  OPT_TYPE_BOOLEAN, "print VM configuration" },
 339         { "PrintWarnings",                OPT_PrintWarnings,                OPT_TYPE_BOOLEAN, "print warnings about suspicious behavior"},
 340         { "ProfileGCMemoryUsage",         OPT_ProfileGCMemoryUsage,         OPT_TYPE_VALUE,   "profiles GC memory usage in the given interval, <value> is in seconds (default: 5)" },
 341         { "ProfileMemoryUsage",           OPT_ProfileMemoryUsage,           OPT_TYPE_VALUE,   "TODO" },
 342         { "ProfileMemoryUsageGNUPlot",    OPT_ProfileMemoryUsageGNUPlot,    OPT_TYPE_VALUE,   "TODO" },
 343         { "RegallocSpillAll",             OPT_RegallocSpillAll,             OPT_TYPE_BOOLEAN, "spill all variables to the stack" },
 344 #if defined(ENABLE_REPLACEMENT)
 345         { "TestReplacement",              OPT_TestReplacement,              OPT_TYPE_BOOLEAN, "activate all replacement points during code generation" },
 346 #endif
 347         { "TraceBuiltinCalls",            OPT_TraceBuiltinCalls,            OPT_TYPE_BOOLEAN, "trace calls to VM builtin functions" },
 348         { "TraceCompilerCalls",           OPT_TraceCompilerCalls,           OPT_TYPE_BOOLEAN, "trace JIT compiler calls" },
 349         { "TraceExceptions",              OPT_TraceExceptions,              OPT_TYPE_BOOLEAN, "trace Exception throwing" },
 350         { "TraceHPI",                     OPT_TraceHPI,                     OPT_TYPE_BOOLEAN, "Trace Host Porting Interface (HPI)" },
 351 #if defined(ENABLE_INLINING) && !defined(NDEBUG)
 352         { "TraceInlining",                OPT_TraceInlining,                OPT_TYPE_VALUE,   "trace method inlining with the given verbosity level (default: 1)" },
 353 #endif
 354 #if !defined(ENABLE_VMLOG)
 355         { "TraceJavaCalls",               OPT_TraceJavaCalls,               OPT_TYPE_BOOLEAN, "trace Java method calls" },
 356 #endif
 357         { "TraceJMMCalls",                OPT_TraceJMMCalls,                OPT_TYPE_BOOLEAN, "trace JMM method calls" },
 358         { "TraceJNICalls",                OPT_TraceJNICalls,                OPT_TYPE_BOOLEAN, "trace JNI method calls" },
 359         { "TraceJVMCalls",                OPT_TraceJVMCalls,                OPT_TYPE_BOOLEAN, "trace JVM method calls but omit very frequent ones" },
 360         { "TraceJVMCallsVerbose",         OPT_TraceJVMCallsVerbose,         OPT_TYPE_BOOLEAN, "trace all JVM method calls" },
 361 #if defined(ENABLE_JVMTI)
 362         { "TraceJVMTICalls",              OPT_TraceJVMTICalls,              OPT_TYPE_BOOLEAN, "trace JVMTI method calls" },
 363 #endif
 364         { "TraceLinkClass",               OPT_TraceLinkClass,               OPT_TYPE_BOOLEAN, "trace class linking" },
 365 #if defined(ENABLE_REPLACEMENT)
 366         { "TraceReplacement",             OPT_TraceReplacement,             OPT_TYPE_VALUE,   "trace on-stack replacement with the given verbosity level (default: 1)" },
 367 #endif
 368         { "TraceSubsystemInitialization", OPT_TraceSubsystemInitialization, OPT_TYPE_BOOLEAN, "trace initialization of subsystems" },
 369         { "TraceTraps",                   OPT_TraceTraps,                   OPT_TYPE_BOOLEAN, "trace traps generated by JIT code" },
 370 #if defined(ENABLE_VMLOG)
 371         { "Vmlog",                        OPT_Vmlog,                        OPT_TYPE_VALUE,   "prefix for vmlog trace files (enables vmlog)" },
 372         { "VmlogStrings",                 OPT_VmlogStrings,                 OPT_TYPE_VALUE,   "prefix of vmlog string file to load" },
 373         { "VmlogIgnore",                  OPT_VmlogIgnore,                  OPT_TYPE_VALUE,   "prefix of vmlog ignore file to load" },
 374 #endif
 375
 376         /* end marker */
 377
 378         { NULL,                           -1,                               -1,               NULL }
 379 };
 380
 381
 382 /* options_get *****************************************************************
 383
 384    DOCUMENT ME!!!
 385
 386 *******************************************************************************/
 387
 388 int options_get(opt_struct *opts, JavaVMInitArgs *vm_args)
 389 {
 390         char *option;
 391         int   i;
 392
 393         if (opt_index >= vm_args->nOptions)
 394                 return OPT_DONE;
 395
 396         /* get the current option */
 397
 398         option = vm_args->options[opt_index].optionString;
 399
 400         if ((option == NULL) || (option[0] != '-'))
 401                 return OPT_DONE;
 402
 403         for (i = 0; opts[i].name; i++) {
 404                 if (!opts[i].arg) {
 405                         /* boolean option found */
 406
 407                         if (strcmp(option + 1, opts[i].name) == 0) {
 408                                 opt_index++;
 409                                 return opts[i].value;
 410                         }
 411
 412                 } else {
 413                         /* parameter option found */
 414
 415                         /* with a space between */
 416
 417                         if (strcmp(option + 1, opts[i].name) == 0) {
 418                                 opt_index++;
 419
 420                                 if (opt_index < vm_args->nOptions) {
 421                                         opt_arg = os_strdup(vm_args->options[opt_index].optionString);
 422                                         opt_index++;
 423                                         return opts[i].value;
 424                                 }
 425
 426                                 return OPT_ERROR;
 427
 428                         } else {
 429                                 /* parameter and option have no space between */
 430
 431                                 /* FIXME: this assumption is plain wrong, hits you if there is a
 432                                  * parameter with no argument starting with same letter as param with argument
 433                                  * but named after that one, ouch! */
 434
 435                                 size_t l = os_strlen(opts[i].name);
 436
 437                                 if (os_strlen(option + 1) > l) {
 438                                         if (memcmp(option + 1, opts[i].name, l) == 0) {
 439                                                 opt_index++;
 440                                                 opt_arg = os_strdup(option + 1 + l);
 441                                                 return opts[i].value;
 442                                         }
 443                                 }
 444                         }
 445                 }
 446         }
 447
 448         return OPT_ERROR;
 449 }
 450
 451
 452 /* options_xxusage *************************************************************
 453
 454    Print usage message for debugging options.
 455
 456 *******************************************************************************/
 457
 458 static void options_xxusage(void)
 459 {
 460         option_t   *opt;
 461         int         length;
 462         int         i;
 463         const char *c;
 464
 465         /* Prevent compiler warning. */
 466
 467         length = 0;
 468
 469         for (opt = options_XX; opt->name != NULL; opt++) {
 470                 printf("    -XX:");
 471
 472                 switch (opt->type) {
 473                 case OPT_TYPE_BOOLEAN:
 474                         printf("+%s", opt->name);
 475                         length = os_strlen("    -XX:+") + os_strlen(opt->name);
 476                         break;
 477
 478                 case OPT_TYPE_VALUE:
 479                         printf("%s=<value>", opt->name);
 480                         length = os_strlen("    -XX:") + os_strlen(opt->name) +
 481                                 os_strlen("=<value>");
 482                         break;
 483
 484                 default:
 485                         vm_abort("options_xxusage: unkown option type %d", opt->type);
 486                 }
 487
 488                 /* Check if the help fits into one 80-column line.
 489                    Documentation starts at column 29. */
 490
 491                 if (length < (29 - 1)) {
 492                         /* Print missing spaces up to column 29. */
 493
 494                         for (i = length; i < 29; i++)
 495                                 printf(" ");
 496                 }
 497                 else {
 498                         printf("\n");
 499                         printf("                             "); /* 29 spaces */
 500                 }
 501
 502                 /* Check documentation length. */
 503
 504                 length = os_strlen(opt->doc);
 505
 506                 if (length < (80 - 29)) {
 507                         printf("%s", opt->doc);
 508                 }
 509                 else {
 510                         for (c = opt->doc, i = 29; *c != 0; c++, i++) {
 511                                 /* If we are at the end of the line, break it. */
 512
 513                                 if (i == 80) {
 514                                         printf("\n");
 515                                         printf("                             "); /* 29 spaces */
 516                                         i = 29;
 517                                 }
 518
 519                                 printf("%c", *c);
 520                         }
 521                 }
 522
 523                 printf("\n");
 524         }
 525
 526         /* exit with error code */
 527
 528         exit(1);
 529 }
 530
 531
 532 /* options_xx ******************************************************************
 533
 534    Handle -XX: options.
 535
 536 *******************************************************************************/
 537
 538 void options_xx(JavaVMInitArgs *vm_args)
 539 {
 540         const char *name;
 541         const char *start;
 542         char       *end;
 543         int         length;
 544         int         enable;
 545         char       *value;
 546         option_t   *opt;
 547         char       *filename;
 548         FILE       *file;
 549         int         i;
 550
 551         /* Iterate over all passed options. */
 552
 553         for (i = 0; i < vm_args->nOptions; i++) {
 554                 /* Get the current option. */
 555
 556                 name = vm_args->options[i].optionString;
 557
 558                 /* Check for help (-XX). */
 559
 560                 if (strcmp(name, "-XX") == 0)
 561                         options_xxusage();
 562
 563                 /* Check if the option start with -XX. */
 564
 565                 start = strstr(name, "-XX:");
 566
 567                 if ((start == NULL) || (start != name))
 568                         continue;
 569
 570                 /* Check if the option is a boolean option. */
 571
 572                 if (name[4] == '+') {
 573                         start  = name + 4 + 1;
 574                         enable = 1;
 575                 }
 576                 else if (name[4] == '-') {
 577                         start  = name + 4 + 1;
 578                         enable = 0;
 579                 }
 580                 else {
 581                         start  = name + 4;
 582                         enable = -1;
 583                 }
 584
 585                 /* Search for a '=' in the option name and get the option name
 586                    length and the value of the option. */
 587
 588                 end = strchr(start, '=');
 589
 590                 if (end == NULL) {
 591                         length = os_strlen(start);
 592                         value  = NULL;
 593                 }
 594                 else {
 595                         length = end - start;
 596                         value  = end + 1;
 597                 }
 598
 599                 /* Search the option in the option array. */
 600
 601                 for (opt = options_XX; opt->name != NULL; opt++) {
 602                         if (strncmp(opt->name, start, length) == 0) {
 603                                 /* Check if the options passed fits to the type. */
 604
 605                                 switch (opt->type) {
 606                                 case OPT_TYPE_BOOLEAN:
 607                                         if ((enable == -1) || (value != NULL))
 608                                                 options_xxusage();
 609                                         break;
 610                                 case OPT_TYPE_VALUE:
 611                                         if ((enable != -1) || (value == NULL))
 612                                                 options_xxusage();
 613                                         break;
 614                                 default:
 615                                         vm_abort("options_xx: unknown option type %d for option %s",
 616                                                          opt->type, opt->name);
 617                                 }
 618
 619                                 break;
 620                         }
 621                 }
 622
 623                 /* Process the option. */
 624
 625                 switch (opt->value) {
 626
 627                 /* Options which must always be available (production options
 628                    in HotSpot). */
 629
 630                 case OPT_MaxDirectMemorySize:
 631                         opt_MaxDirectMemorySize = os_atoi(value);
 632                         break;
 633
 634                 case OPT_MaxPermSize:
 635                         /* Currently ignored. */
 636                         break;
 637
 638                 case OPT_PermSize:
 639                         /* Currently ignored. */
 640                         break;
 641
 642                 case OPT_ThreadStackSize:
 643                         /* currently ignored */
 644                         break;
 645
 646                 /* Debugging options which can be turned off. */
 647
 648                 case OPT_AlwaysEmitLongBranches:
 649                         opt_AlwaysEmitLongBranches = enable;
 650                         break;
 651
 652                 case OPT_AlwaysMmapFirstPage:
 653                         opt_AlwaysMmapFirstPage = enable;
 654                         break;
 655
 656                 case OPT_CompileAll:
 657                         opt_CompileAll = enable;
 658                         opt_run = false;
 659                         makeinitializations = false;
 660                         break;
 661
 662                 case OPT_CompileMethod:
 663                         opt_CompileMethod = value;
 664                         opt_run = false;
 665                         makeinitializations = false;
 666                         break;
 667
 668                 case OPT_CompileSignature:
 669                         opt_CompileSignature = value;
 670                         break;
 671
 672                 case OPT_DebugExceptions:
 673                         opt_DebugExceptions = enable;
 674                         break;
 675
 676                 case OPT_DebugFinalizer:
 677                         opt_DebugFinalizer = enable;
 678                         break;
 679
 680                 case OPT_DebugLocalReferences:
 681                         opt_DebugLocalReferences = enable;
 682                         break;
 683
 684                 case OPT_DebugLocks:
 685                         opt_DebugLocks = enable;
 686                         break;
 687
 688                 case OPT_DebugPackage:
 689                         opt_DebugPackage = enable;
 690                         break;
 691
 692                 case OPT_DebugPatcher:
 693                         opt_DebugPatcher = enable;
 694                         break;
 695
 696                 case OPT_DebugProperties:
 697                         opt_DebugProperties = enable;
 698                         break;
 699
 700                 case OPT_DebugStackFrameInfo:
 701                         opt_DebugStackFrameInfo = enable;
 702                         break;
 703
 704                 case OPT_DebugStackTrace:
 705                         opt_DebugStackTrace = enable;
 706                         break;
 707
 708                 case OPT_DebugThreads:
 709                         opt_DebugThreads = enable;
 710                         break;
 711
 712 #if defined(ENABLE_DISASSEMBLER)
 713                 case OPT_DisassembleStubs:
 714                         opt_DisassembleStubs = enable;
 715                         break;
 716 #endif
 717
 718 #if defined(ENABLE_OPAGENT)
 719                 case OPT_EnableOpagent:
 720                         opt_EnableOpagent = enable;
 721                         break;
 722 #endif
 723
 724 #if defined(ENABLE_GC_CACAO)
 725                 case OPT_GCDebugRootSet:
 726                         opt_GCDebugRootSet = enable;
 727                         break;
 728
 729                 case OPT_GCStress:
 730                         opt_GCStress = enable;
 731                         break;
 732 #endif
 733
 734 #if defined(ENABLE_INLINING)
 735                 case OPT_Inline:
 736                         opt_Inline = enable;
 737                         break;
 738 #if defined(ENABLE_INLINING_DEBUG) || !defined(NDEBUG)
 739                 case OPT_InlineAll:
 740                         opt_InlineAll = enable;
 741                         break;
 742
 743                 case OPT_InlineCount:
 744                         if (value != NULL)
 745                                 opt_InlineCount = os_atoi(value);
 746                         break;
 747
 748                 case OPT_InlineMaxSize:
 749                         if (value != NULL)
 750                                 opt_InlineMaxSize = os_atoi(value);
 751                         break;
 752
 753                 case OPT_InlineMinSize:
 754                         if (value != NULL)
 755                                 opt_InlineMinSize = os_atoi(value);
 756                         break;
 757 #endif
 758 #endif
 759
 760                 case OPT_PrintConfig:
 761                         opt_PrintConfig = enable;
 762                         break;
 763
 764                 case OPT_PrintWarnings:
 765                         opt_PrintWarnings = enable;
 766                         break;
 767
 768                 case OPT_ProfileGCMemoryUsage:
 769                         if (value == NULL)
 770                                 opt_ProfileGCMemoryUsage = 5;
 771                         else
 772                                 opt_ProfileGCMemoryUsage = os_atoi(value);
 773                         break;
 774
 775                 case OPT_ProfileMemoryUsage:
 776                         if (value == NULL)
 777                                 opt_ProfileMemoryUsage = 5;
 778                         else
 779                                 opt_ProfileMemoryUsage = os_atoi(value);
 780
 781 # if defined(ENABLE_STATISTICS)
 782                         /* we also need statistics */
 783
 784                         opt_stat = true;
 785 # endif
 786                         break;
 787
 788                 case OPT_ProfileMemoryUsageGNUPlot:
 789                         if (value == NULL)
 790                                 filename = "profile.dat";
 791                         else
 792                                 filename = value;
 793
 794                         file = fopen(filename, "w");
 795
 796                         if (file == NULL)
 797                                 /* FIXME Use below method instead! */
 798                                 //os::abort_errno("options_xx: fopen failed");
 799                                 vm_abort("options_xx: fopen failed");
 800
 801                         opt_ProfileMemoryUsageGNUPlot = file;
 802                         break;
 803
 804                 case OPT_RegallocSpillAll:
 805                         opt_RegallocSpillAll = enable;
 806                         break;
 807
 808 #if defined(ENABLE_REPLACEMENT)
 809                 case OPT_TestReplacement:
 810                         opt_TestReplacement = enable;
 811                         break;
 812 #endif
 813
 814                 case OPT_TraceBuiltinCalls:
 815                         opt_TraceBuiltinCalls = enable;
 816                         break;
 817
 818                 case OPT_TraceCompilerCalls:
 819                         opt_TraceCompilerCalls = enable;
 820                         break;
 821
 822                 case OPT_TraceExceptions:
 823                         opt_TraceExceptions = enable;
 824                         break;
 825
 826                 case OPT_TraceHPI:
 827                         opt_TraceHPI = enable;
 828                         break;
 829
 830 #if defined(ENABLE_INLINING) && !defined(NDEBUG)
 831                 case OPT_TraceInlining:
 832                         if (value == NULL)
 833                                 opt_TraceInlining = 1;
 834                         else
 835                                 opt_TraceInlining = os_atoi(value);
 836                         break;
 837 #endif
 838
 839                 case OPT_TraceJavaCalls:
 840                         opt_verbosecall = enable;
 841                         opt_TraceJavaCalls = enable;
 842                         break;
 843
 844                 case OPT_TraceJMMCalls:
 845                         opt_TraceJMMCalls = enable;
 846                         break;
 847
 848                 case OPT_TraceJNICalls:
 849                         opt_TraceJNICalls = enable;
 850                         break;
 851
 852                 case OPT_TraceJVMCalls:
 853                         opt_TraceJVMCalls = enable;
 854                         break;
 855
 856                 case OPT_TraceJVMCallsVerbose:
 857                         opt_TraceJVMCallsVerbose = enable;
 858                         break;
 859
 860 #if defined(ENABLE_JVMTI)
 861                 case OPT_TraceJVMTICalls:
 862                         opt_TraceJVMTICalls = enable;
 863                         break;
 864 #endif
 865
 866                 case OPT_TraceLinkClass:
 867                         opt_TraceLinkClass = enable;
 868                         break;
 869
 870 #if defined(ENABLE_REPLACEMENT)
 871                 case OPT_TraceReplacement:
 872                         if (value == NULL)
 873                                 opt_TraceReplacement = 1;
 874                         else
 875                                 opt_TraceReplacement = os_atoi(value);
 876                         break;
 877 #endif
 878
 879                 case OPT_TraceSubsystemInitialization:
 880                         opt_TraceSubsystemInitialization = enable;
 881                         break;
 882
 883                 case OPT_TraceTraps:
 884                         opt_TraceTraps = enable;
 885                         break;
 886
 887 #if defined(ENABLE_VMLOG)
 888                 case OPT_Vmlog:
 889                         if (value == NULL)
 890                                 vmlog_cacao_set_prefix("vmlog");
 891                         else
 892                                 vmlog_cacao_set_prefix(value);
 893                         opt_verbosecall = 1;
 894                         opt_TraceJavaCalls = 1;
 895                         break;
 896
 897                 case OPT_VmlogStrings:
 898                         if (value != NULL)
 899                                 vmlog_cacao_set_stringprefix(value);
 900                         break;
 901
 902                 case OPT_VmlogIgnore:
 903                         if (value != NULL)
 904                                 vmlog_cacao_set_ignoreprefix(value);
 905                         break;
 906 #endif
 907
 908                 default:
 909                         fprintf(stderr, "Unknown -XX option: %s\n", name);
 910                         break;
 911                 }
 912         }
 913 }
 914
 915
 916 /*
 917  * These are local overrides for various environment variables in Emacs.
 918  * Please do not remove this and leave it at the end of the file, where
 919  * Emacs will automagically detect them.
 920  * ---------------------------------------------------------------------
 921  * Local variables:
 922  * mode: c
 923  * indent-tabs-mode: t
 924  * c-basic-offset: 4
 925  * tab-width: 4
 926  * End:
 927  */