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src/share/vm/runtime/globals.hpp@873ec3787992
src/share/vm/runtime/globals.hpp
Wed, 21 Oct 2009 09:15:33 -0700
- author
- kvn
- date
- Wed, 21 Oct 2009 09:15:33 -0700
- changeset 1475
- 873ec3787992
- parent 1445
- 354d3184f6b2
- child 1499
- 473cce303f13
- permissions
- -rw-r--r--
6892186: SA does not dump debug info for scalar replaced objects
Summary: Implement scalar replaced objects debug info dump in SA.
Reviewed-by: twisti
1 /*
2 * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
25 #if !defined(COMPILER1) && !defined(COMPILER2)
26 define_pd_global(bool, BackgroundCompilation, false);
27 define_pd_global(bool, UseTLAB, false);
28 define_pd_global(bool, CICompileOSR, false);
29 define_pd_global(bool, UseTypeProfile, false);
30 define_pd_global(bool, UseOnStackReplacement, false);
31 define_pd_global(bool, InlineIntrinsics, false);
32 define_pd_global(bool, PreferInterpreterNativeStubs, true);
33 define_pd_global(bool, ProfileInterpreter, false);
34 define_pd_global(bool, ProfileTraps, false);
35 define_pd_global(bool, TieredCompilation, false);
37 define_pd_global(intx, CompileThreshold, 0);
38 define_pd_global(intx, Tier2CompileThreshold, 0);
39 define_pd_global(intx, Tier3CompileThreshold, 0);
40 define_pd_global(intx, Tier4CompileThreshold, 0);
42 define_pd_global(intx, BackEdgeThreshold, 0);
43 define_pd_global(intx, Tier2BackEdgeThreshold, 0);
44 define_pd_global(intx, Tier3BackEdgeThreshold, 0);
45 define_pd_global(intx, Tier4BackEdgeThreshold, 0);
47 define_pd_global(intx, OnStackReplacePercentage, 0);
48 define_pd_global(bool, ResizeTLAB, false);
49 define_pd_global(intx, FreqInlineSize, 0);
50 define_pd_global(intx, NewSizeThreadIncrease, 4*K);
51 define_pd_global(intx, NewRatio, 4);
52 define_pd_global(intx, InlineClassNatives, true);
53 define_pd_global(intx, InlineUnsafeOps, true);
54 define_pd_global(intx, InitialCodeCacheSize, 160*K);
55 define_pd_global(intx, ReservedCodeCacheSize, 32*M);
56 define_pd_global(intx, CodeCacheExpansionSize, 32*K);
57 define_pd_global(intx, CodeCacheMinBlockLength, 1);
58 define_pd_global(uintx,PermSize, ScaleForWordSize(4*M));
59 define_pd_global(uintx,MaxPermSize, ScaleForWordSize(64*M));
60 define_pd_global(bool, NeverActAsServerClassMachine, true);
61 define_pd_global(uintx, DefaultMaxRAM, 1*G);
62 #define CI_COMPILER_COUNT 0
63 #else
65 #ifdef COMPILER2
66 #define CI_COMPILER_COUNT 2
67 #else
68 #define CI_COMPILER_COUNT 1
69 #endif // COMPILER2
71 #endif // no compilers
74 // string type aliases used only in this file
75 typedef const char* ccstr;
76 typedef const char* ccstrlist; // represents string arguments which accumulate
78 enum FlagValueOrigin {
79 DEFAULT = 0,
80 COMMAND_LINE = 1,
81 ENVIRON_VAR = 2,
82 CONFIG_FILE = 3,
83 MANAGEMENT = 4,
84 ERGONOMIC = 5,
85 ATTACH_ON_DEMAND = 6,
86 INTERNAL = 99
87 };
89 struct Flag {
90 const char *type;
91 const char *name;
92 void* addr;
93 const char *kind;
94 FlagValueOrigin origin;
96 // points to all Flags static array
97 static Flag *flags;
99 // number of flags
100 static size_t numFlags;
102 static Flag* find_flag(char* name, size_t length);
104 bool is_bool() const { return strcmp(type, "bool") == 0; }
105 bool get_bool() const { return *((bool*) addr); }
106 void set_bool(bool value) { *((bool*) addr) = value; }
108 bool is_intx() const { return strcmp(type, "intx") == 0; }
109 intx get_intx() const { return *((intx*) addr); }
110 void set_intx(intx value) { *((intx*) addr) = value; }
112 bool is_uintx() const { return strcmp(type, "uintx") == 0; }
113 uintx get_uintx() const { return *((uintx*) addr); }
114 void set_uintx(uintx value) { *((uintx*) addr) = value; }
116 bool is_double() const { return strcmp(type, "double") == 0; }
117 double get_double() const { return *((double*) addr); }
118 void set_double(double value) { *((double*) addr) = value; }
120 bool is_ccstr() const { return strcmp(type, "ccstr") == 0 || strcmp(type, "ccstrlist") == 0; }
121 bool ccstr_accumulates() const { return strcmp(type, "ccstrlist") == 0; }
122 ccstr get_ccstr() const { return *((ccstr*) addr); }
123 void set_ccstr(ccstr value) { *((ccstr*) addr) = value; }
125 bool is_unlocker() const;
126 bool is_unlocked() const;
127 bool is_writeable() const;
128 bool is_external() const;
130 void print_on(outputStream* st);
131 void print_as_flag(outputStream* st);
132 };
134 // debug flags control various aspects of the VM and are global accessible
136 // use FlagSetting to temporarily change some debug flag
137 // e.g. FlagSetting fs(DebugThisAndThat, true);
138 // restored to previous value upon leaving scope
139 class FlagSetting {
140 bool val;
141 bool* flag;
142 public:
143 FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; }
144 ~FlagSetting() { *flag = val; }
145 };
148 class CounterSetting {
149 intx* counter;
150 public:
151 CounterSetting(intx* cnt) { counter = cnt; (*counter)++; }
152 ~CounterSetting() { (*counter)--; }
153 };
156 class IntFlagSetting {
157 intx val;
158 intx* flag;
159 public:
160 IntFlagSetting(intx& fl, intx newValue) { flag = &fl; val = fl; fl = newValue; }
161 ~IntFlagSetting() { *flag = val; }
162 };
165 class DoubleFlagSetting {
166 double val;
167 double* flag;
168 public:
169 DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; }
170 ~DoubleFlagSetting() { *flag = val; }
171 };
174 class CommandLineFlags {
175 public:
176 static bool boolAt(char* name, size_t len, bool* value);
177 static bool boolAt(char* name, bool* value) { return boolAt(name, strlen(name), value); }
178 static bool boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin);
179 static bool boolAtPut(char* name, bool* value, FlagValueOrigin origin) { return boolAtPut(name, strlen(name), value, origin); }
181 static bool intxAt(char* name, size_t len, intx* value);
182 static bool intxAt(char* name, intx* value) { return intxAt(name, strlen(name), value); }
183 static bool intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin);
184 static bool intxAtPut(char* name, intx* value, FlagValueOrigin origin) { return intxAtPut(name, strlen(name), value, origin); }
186 static bool uintxAt(char* name, size_t len, uintx* value);
187 static bool uintxAt(char* name, uintx* value) { return uintxAt(name, strlen(name), value); }
188 static bool uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin);
189 static bool uintxAtPut(char* name, uintx* value, FlagValueOrigin origin) { return uintxAtPut(name, strlen(name), value, origin); }
191 static bool doubleAt(char* name, size_t len, double* value);
192 static bool doubleAt(char* name, double* value) { return doubleAt(name, strlen(name), value); }
193 static bool doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin);
194 static bool doubleAtPut(char* name, double* value, FlagValueOrigin origin) { return doubleAtPut(name, strlen(name), value, origin); }
196 static bool ccstrAt(char* name, size_t len, ccstr* value);
197 static bool ccstrAt(char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); }
198 static bool ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin);
199 static bool ccstrAtPut(char* name, ccstr* value, FlagValueOrigin origin) { return ccstrAtPut(name, strlen(name), value, origin); }
201 // Returns false if name is not a command line flag.
202 static bool wasSetOnCmdline(const char* name, bool* value);
203 static void printSetFlags();
205 static void printFlags() PRODUCT_RETURN;
207 static void verify() PRODUCT_RETURN;
208 };
210 // use this for flags that are true by default in the debug version but
211 // false in the optimized version, and vice versa
212 #ifdef ASSERT
213 #define trueInDebug true
214 #define falseInDebug false
215 #else
216 #define trueInDebug false
217 #define falseInDebug true
218 #endif
220 // use this for flags that are true per default in the product build
221 // but false in development builds, and vice versa
222 #ifdef PRODUCT
223 #define trueInProduct true
224 #define falseInProduct false
225 #else
226 #define trueInProduct false
227 #define falseInProduct true
228 #endif
230 // use this for flags that are true per default in the tiered build
231 // but false in non-tiered builds, and vice versa
232 #ifdef TIERED
233 #define trueInTiered true
234 #define falseInTiered false
235 #else
236 #define trueInTiered false
237 #define falseInTiered true
238 #endif
240 // develop flags are settable / visible only during development and are constant in the PRODUCT version
241 // product flags are always settable / visible
242 // notproduct flags are settable / visible only during development and are not declared in the PRODUCT version
244 // A flag must be declared with one of the following types:
245 // bool, intx, uintx, ccstr.
246 // The type "ccstr" is an alias for "const char*" and is used
247 // only in this file, because the macrology requires single-token type names.
249 // Note: Diagnostic options not meant for VM tuning or for product modes.
250 // They are to be used for VM quality assurance or field diagnosis
251 // of VM bugs. They are hidden so that users will not be encouraged to
252 // try them as if they were VM ordinary execution options. However, they
253 // are available in the product version of the VM. Under instruction
254 // from support engineers, VM customers can turn them on to collect
255 // diagnostic information about VM problems. To use a VM diagnostic
256 // option, you must first specify +UnlockDiagnosticVMOptions.
257 // (This master switch also affects the behavior of -Xprintflags.)
258 //
259 // experimental flags are in support of features that are not
260 // part of the officially supported product, but are available
261 // for experimenting with. They could, for example, be performance
262 // features that may not have undergone full or rigorous QA, but which may
263 // help performance in some cases and released for experimentation
264 // by the community of users and developers. This flag also allows one to
265 // be able to build a fully supported product that nonetheless also
266 // ships with some unsupported, lightly tested, experimental features.
267 // Like the UnlockDiagnosticVMOptions flag above, there is a corresponding
268 // UnlockExperimentalVMOptions flag, which allows the control and
269 // modification of the experimental flags.
270 //
271 // manageable flags are writeable external product flags.
272 // They are dynamically writeable through the JDK management interface
273 // (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole.
274 // These flags are external exported interface (see CCC). The list of
275 // manageable flags can be queried programmatically through the management
276 // interface.
277 //
278 // A flag can be made as "manageable" only if
279 // - the flag is defined in a CCC as an external exported interface.
280 // - the VM implementation supports dynamic setting of the flag.
281 // This implies that the VM must *always* query the flag variable
282 // and not reuse state related to the flag state at any given time.
283 // - you want the flag to be queried programmatically by the customers.
284 //
285 // product_rw flags are writeable internal product flags.
286 // They are like "manageable" flags but for internal/private use.
287 // The list of product_rw flags are internal/private flags which
288 // may be changed/removed in a future release. It can be set
289 // through the management interface to get/set value
290 // when the name of flag is supplied.
291 //
292 // A flag can be made as "product_rw" only if
293 // - the VM implementation supports dynamic setting of the flag.
294 // This implies that the VM must *always* query the flag variable
295 // and not reuse state related to the flag state at any given time.
296 //
297 // Note that when there is a need to support develop flags to be writeable,
298 // it can be done in the same way as product_rw.
300 #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \
301 \
302 lp64_product(bool, UseCompressedOops, false, \
303 "Use 32-bit object references in 64-bit VM. " \
304 "lp64_product means flag is always constant in 32 bit VM") \
305 \
306 notproduct(bool, CheckCompressedOops, true, \
307 "generate checks in encoding/decoding code in debug VM") \
308 \
309 product_pd(uintx, HeapBaseMinAddress, \
310 "OS specific low limit for heap base address") \
311 \
312 diagnostic(bool, PrintCompressedOopsMode, false, \
313 "Print compressed oops base address and encoding mode") \
314 \
315 /* UseMembar is theoretically a temp flag used for memory barrier \
316 * removal testing. It was supposed to be removed before FCS but has \
317 * been re-added (see 6401008) */ \
318 product(bool, UseMembar, false, \
319 "(Unstable) Issues membars on thread state transitions") \
320 \
321 product(bool, PrintCommandLineFlags, false, \
322 "Prints flags that appeared on the command line") \
323 \
324 diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \
325 "Enable normal processing of flags relating to field diagnostics")\
326 \
327 experimental(bool, UnlockExperimentalVMOptions, false, \
328 "Enable normal processing of flags relating to experimental features")\
329 \
330 product(bool, JavaMonitorsInStackTrace, true, \
331 "Print info. about Java monitor locks when the stacks are dumped")\
332 \
333 product_pd(bool, UseLargePages, \
334 "Use large page memory") \
335 \
336 product_pd(bool, UseLargePagesIndividualAllocation, \
337 "Allocate large pages individually for better affinity") \
338 \
339 develop(bool, LargePagesIndividualAllocationInjectError, false, \
340 "Fail large pages individual allocation") \
341 \
342 develop(bool, TracePageSizes, false, \
343 "Trace page size selection and usage.") \
344 \
345 product(bool, UseNUMA, false, \
346 "Use NUMA if available") \
347 \
348 product(bool, ForceNUMA, false, \
349 "Force NUMA optimizations on single-node/UMA systems") \
350 \
351 product(intx, NUMAChunkResizeWeight, 20, \
352 "Percentage (0-100) used to weight the current sample when " \
353 "computing exponentially decaying average for " \
354 "AdaptiveNUMAChunkSizing") \
355 \
356 product(intx, NUMASpaceResizeRate, 1*G, \
357 "Do not reallocate more that this amount per collection") \
358 \
359 product(bool, UseAdaptiveNUMAChunkSizing, true, \
360 "Enable adaptive chunk sizing for NUMA") \
361 \
362 product(bool, NUMAStats, false, \
363 "Print NUMA stats in detailed heap information") \
364 \
365 product(intx, NUMAPageScanRate, 256, \
366 "Maximum number of pages to include in the page scan procedure") \
367 \
368 product_pd(bool, NeedsDeoptSuspend, \
369 "True for register window machines (sparc/ia64)") \
370 \
371 product(intx, UseSSE, 99, \
372 "Highest supported SSE instructions set on x86/x64") \
373 \
374 product(uintx, LargePageSizeInBytes, 0, \
375 "Large page size (0 to let VM choose the page size") \
376 \
377 product(uintx, LargePageHeapSizeThreshold, 128*M, \
378 "Use large pages if max heap is at least this big") \
379 \
380 product(bool, ForceTimeHighResolution, false, \
381 "Using high time resolution(For Win32 only)") \
382 \
383 develop(bool, TraceItables, false, \
384 "Trace initialization and use of itables") \
385 \
386 develop(bool, TracePcPatching, false, \
387 "Trace usage of frame::patch_pc") \
388 \
389 develop(bool, TraceJumps, false, \
390 "Trace assembly jumps in thread ring buffer") \
391 \
392 develop(bool, TraceRelocator, false, \
393 "Trace the bytecode relocator") \
394 \
395 develop(bool, TraceLongCompiles, false, \
396 "Print out every time compilation is longer than " \
397 "a given threashold") \
398 \
399 develop(bool, SafepointALot, false, \
400 "Generates a lot of safepoints. Works with " \
401 "GuaranteedSafepointInterval") \
402 \
403 product_pd(bool, BackgroundCompilation, \
404 "A thread requesting compilation is not blocked during " \
405 "compilation") \
406 \
407 product(bool, PrintVMQWaitTime, false, \
408 "Prints out the waiting time in VM operation queue") \
409 \
410 develop(bool, BailoutToInterpreterForThrows, false, \
411 "Compiled methods which throws/catches exceptions will be " \
412 "deopt and intp.") \
413 \
414 develop(bool, NoYieldsInMicrolock, false, \
415 "Disable yields in microlock") \
416 \
417 develop(bool, TraceOopMapGeneration, false, \
418 "Shows oopmap generation") \
419 \
420 product(bool, MethodFlushing, true, \
421 "Reclamation of zombie and not-entrant methods") \
422 \
423 develop(bool, VerifyStack, false, \
424 "Verify stack of each thread when it is entering a runtime call") \
425 \
426 develop(bool, ForceUnreachable, false, \
427 "(amd64) Make all non code cache addresses to be unreachable with rip-rel forcing use of 64bit literal fixups") \
428 \
429 notproduct(bool, StressDerivedPointers, false, \
430 "Force scavenge when a derived pointers is detected on stack " \
431 "after rtm call") \
432 \
433 develop(bool, TraceDerivedPointers, false, \
434 "Trace traversal of derived pointers on stack") \
435 \
436 notproduct(bool, TraceCodeBlobStacks, false, \
437 "Trace stack-walk of codeblobs") \
438 \
439 product(bool, PrintJNIResolving, false, \
440 "Used to implement -v:jni") \
441 \
442 notproduct(bool, PrintRewrites, false, \
443 "Print methods that are being rewritten") \
444 \
445 product(bool, UseInlineCaches, true, \
446 "Use Inline Caches for virtual calls ") \
447 \
448 develop(bool, InlineArrayCopy, true, \
449 "inline arraycopy native that is known to be part of " \
450 "base library DLL") \
451 \
452 develop(bool, InlineObjectHash, true, \
453 "inline Object::hashCode() native that is known to be part " \
454 "of base library DLL") \
455 \
456 develop(bool, InlineObjectCopy, true, \
457 "inline Object.clone and Arrays.copyOf[Range] intrinsics") \
458 \
459 develop(bool, InlineNatives, true, \
460 "inline natives that are known to be part of base library DLL") \
461 \
462 develop(bool, InlineMathNatives, true, \
463 "inline SinD, CosD, etc.") \
464 \
465 develop(bool, InlineClassNatives, true, \
466 "inline Class.isInstance, etc") \
467 \
468 develop(bool, InlineAtomicLong, true, \
469 "inline sun.misc.AtomicLong") \
470 \
471 develop(bool, InlineThreadNatives, true, \
472 "inline Thread.currentThread, etc") \
473 \
474 develop(bool, InlineReflectionGetCallerClass, true, \
475 "inline sun.reflect.Reflection.getCallerClass(), known to be part "\
476 "of base library DLL") \
477 \
478 develop(bool, InlineUnsafeOps, true, \
479 "inline memory ops (native methods) from sun.misc.Unsafe") \
480 \
481 develop(bool, ConvertCmpD2CmpF, true, \
482 "Convert cmpD to cmpF when one input is constant in float range") \
483 \
484 develop(bool, ConvertFloat2IntClipping, true, \
485 "Convert float2int clipping idiom to integer clipping") \
486 \
487 develop(bool, SpecialStringCompareTo, true, \
488 "special version of string compareTo") \
489 \
490 develop(bool, SpecialStringIndexOf, true, \
491 "special version of string indexOf") \
492 \
493 develop(bool, SpecialStringEquals, true, \
494 "special version of string equals") \
495 \
496 develop(bool, SpecialArraysEquals, true, \
497 "special version of Arrays.equals(char[],char[])") \
498 \
499 product(bool, UseSSE42Intrinsics, false, \
500 "SSE4.2 versions of intrinsics") \
501 \
502 develop(bool, TraceCallFixup, false, \
503 "traces all call fixups") \
504 \
505 develop(bool, DeoptimizeALot, false, \
506 "deoptimize at every exit from the runtime system") \
507 \
508 notproduct(ccstrlist, DeoptimizeOnlyAt, "", \
509 "a comma separated list of bcis to deoptimize at") \
510 \
511 product(bool, DeoptimizeRandom, false, \
512 "deoptimize random frames on random exit from the runtime system")\
513 \
514 notproduct(bool, ZombieALot, false, \
515 "creates zombies (non-entrant) at exit from the runt. system") \
516 \
517 notproduct(bool, WalkStackALot, false, \
518 "trace stack (no print) at every exit from the runtime system") \
519 \
520 develop(bool, Debugging, false, \
521 "set when executing debug methods in debug.ccp " \
522 "(to prevent triggering assertions)") \
523 \
524 notproduct(bool, StrictSafepointChecks, trueInDebug, \
525 "Enable strict checks that safepoints cannot happen for threads " \
526 "that used No_Safepoint_Verifier") \
527 \
528 notproduct(bool, VerifyLastFrame, false, \
529 "Verify oops on last frame on entry to VM") \
530 \
531 develop(bool, TraceHandleAllocation, false, \
532 "Prints out warnings when suspicious many handles are allocated") \
533 \
534 product(bool, UseCompilerSafepoints, true, \
535 "Stop at safepoints in compiled code") \
536 \
537 product(bool, UseSplitVerifier, true, \
538 "use split verifier with StackMapTable attributes") \
539 \
540 product(bool, FailOverToOldVerifier, true, \
541 "fail over to old verifier when split verifier fails") \
542 \
543 develop(bool, ShowSafepointMsgs, false, \
544 "Show msg. about safepoint synch.") \
545 \
546 product(bool, SafepointTimeout, false, \
547 "Time out and warn or fail after SafepointTimeoutDelay " \
548 "milliseconds if failed to reach safepoint") \
549 \
550 develop(bool, DieOnSafepointTimeout, false, \
551 "Die upon failure to reach safepoint (see SafepointTimeout)") \
552 \
553 /* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \
554 /* typically, at most a few retries are needed */ \
555 product(intx, SuspendRetryCount, 50, \
556 "Maximum retry count for an external suspend request") \
557 \
558 product(intx, SuspendRetryDelay, 5, \
559 "Milliseconds to delay per retry (* current_retry_count)") \
560 \
561 product(bool, AssertOnSuspendWaitFailure, false, \
562 "Assert/Guarantee on external suspend wait failure") \
563 \
564 product(bool, TraceSuspendWaitFailures, false, \
565 "Trace external suspend wait failures") \
566 \
567 product(bool, MaxFDLimit, true, \
568 "Bump the number of file descriptors to max in solaris.") \
569 \
570 notproduct(bool, LogEvents, trueInDebug, \
571 "Enable Event log") \
572 \
573 product(bool, BytecodeVerificationRemote, true, \
574 "Enables the Java bytecode verifier for remote classes") \
575 \
576 product(bool, BytecodeVerificationLocal, false, \
577 "Enables the Java bytecode verifier for local classes") \
578 \
579 develop(bool, ForceFloatExceptions, trueInDebug, \
580 "Force exceptions on FP stack under/overflow") \
581 \
582 develop(bool, SoftMatchFailure, trueInProduct, \
583 "If the DFA fails to match a node, print a message and bail out") \
584 \
585 develop(bool, VerifyStackAtCalls, false, \
586 "Verify that the stack pointer is unchanged after calls") \
587 \
588 develop(bool, TraceJavaAssertions, false, \
589 "Trace java language assertions") \
590 \
591 notproduct(bool, CheckAssertionStatusDirectives, false, \
592 "temporary - see javaClasses.cpp") \
593 \
594 notproduct(bool, PrintMallocFree, false, \
595 "Trace calls to C heap malloc/free allocation") \
596 \
597 notproduct(bool, PrintOopAddress, false, \
598 "Always print the location of the oop") \
599 \
600 notproduct(bool, VerifyCodeCacheOften, false, \
601 "Verify compiled-code cache often") \
602 \
603 develop(bool, ZapDeadCompiledLocals, false, \
604 "Zap dead locals in compiler frames") \
605 \
606 notproduct(bool, ZapDeadLocalsOld, false, \
607 "Zap dead locals (old version, zaps all frames when " \
608 "entering the VM") \
609 \
610 notproduct(bool, CheckOopishValues, false, \
611 "Warn if value contains oop ( requires ZapDeadLocals)") \
612 \
613 develop(bool, UseMallocOnly, false, \
614 "use only malloc/free for allocation (no resource area/arena)") \
615 \
616 develop(bool, PrintMalloc, false, \
617 "print all malloc/free calls") \
618 \
619 develop(bool, ZapResourceArea, trueInDebug, \
620 "Zap freed resource/arena space with 0xABABABAB") \
621 \
622 notproduct(bool, ZapVMHandleArea, trueInDebug, \
623 "Zap freed VM handle space with 0xBCBCBCBC") \
624 \
625 develop(bool, ZapJNIHandleArea, trueInDebug, \
626 "Zap freed JNI handle space with 0xFEFEFEFE") \
627 \
628 develop(bool, ZapUnusedHeapArea, trueInDebug, \
629 "Zap unused heap space with 0xBAADBABE") \
630 \
631 develop(bool, TraceZapUnusedHeapArea, false, \
632 "Trace zapping of unused heap space") \
633 \
634 develop(bool, CheckZapUnusedHeapArea, false, \
635 "Check zapping of unused heap space") \
636 \
637 develop(bool, ZapFillerObjects, trueInDebug, \
638 "Zap filler objects with 0xDEAFBABE") \
639 \
640 develop(bool, PrintVMMessages, true, \
641 "Print vm messages on console") \
642 \
643 product(bool, PrintGCApplicationConcurrentTime, false, \
644 "Print the time the application has been running") \
645 \
646 product(bool, PrintGCApplicationStoppedTime, false, \
647 "Print the time the application has been stopped") \
648 \
649 develop(bool, Verbose, false, \
650 "Prints additional debugging information from other modes") \
651 \
652 develop(bool, PrintMiscellaneous, false, \
653 "Prints uncategorized debugging information (requires +Verbose)") \
654 \
655 develop(bool, WizardMode, false, \
656 "Prints much more debugging information") \
657 \
658 product(bool, ShowMessageBoxOnError, false, \
659 "Keep process alive on VM fatal error") \
660 \
661 product_pd(bool, UseOSErrorReporting, \
662 "Let VM fatal error propagate to the OS (ie. WER on Windows)") \
663 \
664 product(bool, SuppressFatalErrorMessage, false, \
665 "Do NO Fatal Error report [Avoid deadlock]") \
666 \
667 product(ccstrlist, OnError, "", \
668 "Run user-defined commands on fatal error; see VMError.cpp " \
669 "for examples") \
670 \
671 product(ccstrlist, OnOutOfMemoryError, "", \
672 "Run user-defined commands on first java.lang.OutOfMemoryError") \
673 \
674 manageable(bool, HeapDumpBeforeFullGC, false, \
675 "Dump heap to file before any major stop-world GC") \
676 \
677 manageable(bool, HeapDumpAfterFullGC, false, \
678 "Dump heap to file after any major stop-world GC") \
679 \
680 manageable(bool, HeapDumpOnOutOfMemoryError, false, \
681 "Dump heap to file when java.lang.OutOfMemoryError is thrown") \
682 \
683 manageable(ccstr, HeapDumpPath, NULL, \
684 "When HeapDumpOnOutOfMemoryError is on, the path (filename or" \
685 "directory) of the dump file (defaults to java_pid<pid>.hprof" \
686 "in the working directory)") \
687 \
688 develop(uintx, SegmentedHeapDumpThreshold, 2*G, \
689 "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \
690 "when the heap usage is larger than this") \
691 \
692 develop(uintx, HeapDumpSegmentSize, 1*G, \
693 "Approximate segment size when generating a segmented heap dump") \
694 \
695 develop(bool, BreakAtWarning, false, \
696 "Execute breakpoint upon encountering VM warning") \
697 \
698 product_pd(bool, UseVectoredExceptions, \
699 "Temp Flag - Use Vectored Exceptions rather than SEH (Windows Only)") \
700 \
701 develop(bool, TraceVMOperation, false, \
702 "Trace vm operations") \
703 \
704 develop(bool, UseFakeTimers, false, \
705 "Tells whether the VM should use system time or a fake timer") \
706 \
707 diagnostic(bool, LogCompilation, false, \
708 "Log compilation activity in detail to hotspot.log or LogFile") \
709 \
710 product(bool, PrintCompilation, false, \
711 "Print compilations") \
712 \
713 diagnostic(bool, TraceNMethodInstalls, false, \
714 "Trace nmethod intallation") \
715 \
716 diagnostic(intx, ScavengeRootsInCode, 0, \
717 "0: do not allow scavengable oops in the code cache; " \
718 "1: allow scavenging from the code cache; " \
719 "2: emit as many constants as the compiler can see") \
720 \
721 diagnostic(bool, TraceOSRBreakpoint, false, \
722 "Trace OSR Breakpoint ") \
723 \
724 diagnostic(bool, TraceCompileTriggered, false, \
725 "Trace compile triggered") \
726 \
727 diagnostic(bool, TraceTriggers, false, \
728 "Trace triggers") \
729 \
730 product(bool, AlwaysRestoreFPU, false, \
731 "Restore the FPU control word after every JNI call (expensive)") \
732 \
733 notproduct(bool, PrintCompilation2, false, \
734 "Print additional statistics per compilation") \
735 \
736 diagnostic(bool, PrintAdapterHandlers, false, \
737 "Print code generated for i2c/c2i adapters") \
738 \
739 diagnostic(bool, PrintAssembly, false, \
740 "Print assembly code (using external disassembler.so)") \
741 \
742 diagnostic(ccstr, PrintAssemblyOptions, NULL, \
743 "Options string passed to disassembler.so") \
744 \
745 diagnostic(bool, PrintNMethods, false, \
746 "Print assembly code for nmethods when generated") \
747 \
748 diagnostic(bool, PrintNativeNMethods, false, \
749 "Print assembly code for native nmethods when generated") \
750 \
751 develop(bool, PrintDebugInfo, false, \
752 "Print debug information for all nmethods when generated") \
753 \
754 develop(bool, PrintRelocations, false, \
755 "Print relocation information for all nmethods when generated") \
756 \
757 develop(bool, PrintDependencies, false, \
758 "Print dependency information for all nmethods when generated") \
759 \
760 develop(bool, PrintExceptionHandlers, false, \
761 "Print exception handler tables for all nmethods when generated") \
762 \
763 develop(bool, InterceptOSException, false, \
764 "Starts debugger when an implicit OS (e.g., NULL) " \
765 "exception happens") \
766 \
767 notproduct(bool, PrintCodeCache, false, \
768 "Print the compiled_code cache when exiting") \
769 \
770 develop(bool, PrintCodeCache2, false, \
771 "Print detailed info on the compiled_code cache when exiting") \
772 \
773 diagnostic(bool, PrintStubCode, false, \
774 "Print generated stub code") \
775 \
776 product(bool, StackTraceInThrowable, true, \
777 "Collect backtrace in throwable when exception happens") \
778 \
779 product(bool, OmitStackTraceInFastThrow, true, \
780 "Omit backtraces for some 'hot' exceptions in optimized code") \
781 \
782 product(bool, ProfilerPrintByteCodeStatistics, false, \
783 "Prints byte code statictics when dumping profiler output") \
784 \
785 product(bool, ProfilerRecordPC, false, \
786 "Collects tick for each 16 byte interval of compiled code") \
787 \
788 product(bool, ProfileVM, false, \
789 "Profiles ticks that fall within VM (either in the VM Thread " \
790 "or VM code called through stubs)") \
791 \
792 product(bool, ProfileIntervals, false, \
793 "Prints profiles for each interval (see ProfileIntervalsTicks)") \
794 \
795 notproduct(bool, ProfilerCheckIntervals, false, \
796 "Collect and print info on spacing of profiler ticks") \
797 \
798 develop(bool, PrintJVMWarnings, false, \
799 "Prints warnings for unimplemented JVM functions") \
800 \
801 notproduct(uintx, WarnOnStalledSpinLock, 0, \
802 "Prints warnings for stalled SpinLocks") \
803 \
804 develop(bool, InitializeJavaLangSystem, true, \
805 "Initialize java.lang.System - turn off for individual " \
806 "method debugging") \
807 \
808 develop(bool, InitializeJavaLangString, true, \
809 "Initialize java.lang.String - turn off for individual " \
810 "method debugging") \
811 \
812 develop(bool, InitializeJavaLangExceptionsErrors, true, \
813 "Initialize various error and exception classes - turn off for " \
814 "individual method debugging") \
815 \
816 product(bool, RegisterFinalizersAtInit, true, \
817 "Register finalizable objects at end of Object.<init> or " \
818 "after allocation.") \
819 \
820 develop(bool, RegisterReferences, true, \
821 "Tells whether the VM should register soft/weak/final/phantom " \
822 "references") \
823 \
824 develop(bool, IgnoreRewrites, false, \
825 "Supress rewrites of bytecodes in the oopmap generator. " \
826 "This is unsafe!") \
827 \
828 develop(bool, PrintCodeCacheExtension, false, \
829 "Print extension of code cache") \
830 \
831 develop(bool, UsePrivilegedStack, true, \
832 "Enable the security JVM functions") \
833 \
834 develop(bool, IEEEPrecision, true, \
835 "Enables IEEE precision (for INTEL only)") \
836 \
837 develop(bool, ProtectionDomainVerification, true, \
838 "Verifies protection domain before resolution in system " \
839 "dictionary") \
840 \
841 product(bool, ClassUnloading, true, \
842 "Do unloading of classes") \
843 \
844 diagnostic(bool, LinkWellKnownClasses, false, \
845 "Resolve a well known class as soon as its name is seen") \
846 \
847 develop(bool, DisableStartThread, false, \
848 "Disable starting of additional Java threads " \
849 "(for debugging only)") \
850 \
851 develop(bool, MemProfiling, false, \
852 "Write memory usage profiling to log file") \
853 \
854 notproduct(bool, PrintSystemDictionaryAtExit, false, \
855 "Prints the system dictionary at exit") \
856 \
857 diagnostic(bool, UnsyncloadClass, false, \
858 "Unstable: VM calls loadClass unsynchronized. Custom " \
859 "class loader must call VM synchronized for findClass " \
860 "and defineClass.") \
861 \
862 product(bool, AlwaysLockClassLoader, false, \
863 "Require the VM to acquire the class loader lock before calling " \
864 "loadClass() even for class loaders registering " \
865 "as parallel capable. Default false. ") \
866 \
867 product(bool, AllowParallelDefineClass, false, \
868 "Allow parallel defineClass requests for class loaders " \
869 "registering as parallel capable. Default false") \
870 \
871 product(bool, MustCallLoadClassInternal, false, \
872 "Call loadClassInternal() rather than loadClass().Default false") \
873 \
874 product_pd(bool, DontYieldALot, \
875 "Throw away obvious excess yield calls (for SOLARIS only)") \
876 \
877 product_pd(bool, ConvertSleepToYield, \
878 "Converts sleep(0) to thread yield " \
879 "(may be off for SOLARIS to improve GUI)") \
880 \
881 product(bool, ConvertYieldToSleep, false, \
882 "Converts yield to a sleep of MinSleepInterval to simulate Win32 "\
883 "behavior (SOLARIS only)") \
884 \
885 product(bool, UseBoundThreads, true, \
886 "Bind user level threads to kernel threads (for SOLARIS only)") \
887 \
888 develop(bool, UseDetachedThreads, true, \
889 "Use detached threads that are recycled upon termination " \
890 "(for SOLARIS only)") \
891 \
892 product(bool, UseLWPSynchronization, true, \
893 "Use LWP-based instead of libthread-based synchronization " \
894 "(SPARC only)") \
895 \
896 product(ccstr, SyncKnobs, NULL, \
897 "(Unstable) Various monitor synchronization tunables") \
898 \
899 product(intx, EmitSync, 0, \
900 "(Unsafe,Unstable) " \
901 " Controls emission of inline sync fast-path code") \
902 \
903 product(intx, AlwaysInflate, 0, "(Unstable) Force inflation") \
904 \
905 product(intx, Atomics, 0, \
906 "(Unsafe,Unstable) Diagnostic - Controls emission of atomics") \
907 \
908 product(intx, FenceInstruction, 0, \
909 "(Unsafe,Unstable) Experimental") \
910 \
911 product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \
912 \
913 product(intx, SyncVerbose, 0, "(Unstable)" ) \
914 \
915 product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \
916 \
917 product(intx, hashCode, 0, \
918 "(Unstable) select hashCode generation algorithm" ) \
919 \
920 product(intx, WorkAroundNPTLTimedWaitHang, 1, \
921 "(Unstable, Linux-specific)" \
922 " avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \
923 \
924 product(bool, FilterSpuriousWakeups , true, \
925 "Prevent spurious or premature wakeups from object.wait" \
926 "(Solaris only)") \
927 \
928 product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \
929 product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \
930 product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \
931 \
932 develop(bool, UsePthreads, false, \
933 "Use pthread-based instead of libthread-based synchronization " \
934 "(SPARC only)") \
935 \
936 product(bool, AdjustConcurrency, false, \
937 "call thr_setconcurrency at thread create time to avoid " \
938 "LWP starvation on MP systems (For Solaris Only)") \
939 \
940 develop(bool, UpdateHotSpotCompilerFileOnError, true, \
941 "Should the system attempt to update the compiler file when " \
942 "an error occurs?") \
943 \
944 product(bool, ReduceSignalUsage, false, \
945 "Reduce the use of OS signals in Java and/or the VM") \
946 \
947 notproduct(bool, ValidateMarkSweep, false, \
948 "Do extra validation during MarkSweep collection") \
949 \
950 notproduct(bool, RecordMarkSweepCompaction, false, \
951 "Enable GC-to-GC recording and querying of compaction during " \
952 "MarkSweep") \
953 \
954 develop_pd(bool, ShareVtableStubs, \
955 "Share vtable stubs (smaller code but worse branch prediction") \
956 \
957 develop(bool, LoadLineNumberTables, true, \
958 "Tells whether the class file parser loads line number tables") \
959 \
960 develop(bool, LoadLocalVariableTables, true, \
961 "Tells whether the class file parser loads local variable tables")\
962 \
963 develop(bool, LoadLocalVariableTypeTables, true, \
964 "Tells whether the class file parser loads local variable type tables")\
965 \
966 product(bool, AllowUserSignalHandlers, false, \
967 "Do not complain if the application installs signal handlers " \
968 "(Solaris & Linux only)") \
969 \
970 product(bool, UseSignalChaining, true, \
971 "Use signal-chaining to invoke signal handlers installed " \
972 "by the application (Solaris & Linux only)") \
973 \
974 product(bool, UseAltSigs, false, \
975 "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \
976 "internal signals. (Solaris only)") \
977 \
978 product(bool, UseSpinning, false, \
979 "Use spinning in monitor inflation and before entry") \
980 \
981 product(bool, PreSpinYield, false, \
982 "Yield before inner spinning loop") \
983 \
984 product(bool, PostSpinYield, true, \
985 "Yield after inner spinning loop") \
986 \
987 product(bool, AllowJNIEnvProxy, false, \
988 "Allow JNIEnv proxies for jdbx") \
989 \
990 product(bool, JNIDetachReleasesMonitors, true, \
991 "JNI DetachCurrentThread releases monitors owned by thread") \
992 \
993 product(bool, RestoreMXCSROnJNICalls, false, \
994 "Restore MXCSR when returning from JNI calls") \
995 \
996 product(bool, CheckJNICalls, false, \
997 "Verify all arguments to JNI calls") \
998 \
999 product(bool, UseFastJNIAccessors, true, \
1000 "Use optimized versions of Get<Primitive>Field") \
1001 \
1002 product(bool, EagerXrunInit, false, \
1003 "Eagerly initialize -Xrun libraries; allows startup profiling, " \
1004 " but not all -Xrun libraries may support the state of the VM at this time") \
1005 \
1006 product(bool, PreserveAllAnnotations, false, \
1007 "Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \
1008 \
1009 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \
1010 "Number of OutOfMemoryErrors preallocated with backtrace") \
1011 \
1012 product(bool, LazyBootClassLoader, true, \
1013 "Enable/disable lazy opening of boot class path entries") \
1014 \
1015 diagnostic(bool, UseIncDec, true, \
1016 "Use INC, DEC instructions on x86") \
1017 \
1018 product(bool, UseNewLongLShift, false, \
1019 "Use optimized bitwise shift left") \
1020 \
1021 product(bool, UseStoreImmI16, true, \
1022 "Use store immediate 16-bits value instruction on x86") \
1023 \
1024 product(bool, UseAddressNop, false, \
1025 "Use '0F 1F [addr]' NOP instructions on x86 cpus") \
1026 \
1027 product(bool, UseXmmLoadAndClearUpper, true, \
1028 "Load low part of XMM register and clear upper part") \
1029 \
1030 product(bool, UseXmmRegToRegMoveAll, false, \
1031 "Copy all XMM register bits when moving value between registers") \
1032 \
1033 product(bool, UseXmmI2D, false, \
1034 "Use SSE2 CVTDQ2PD instruction to convert Integer to Double") \
1035 \
1036 product(bool, UseXmmI2F, false, \
1037 "Use SSE2 CVTDQ2PS instruction to convert Integer to Float") \
1038 \
1039 product(bool, UseXMMForArrayCopy, false, \
1040 "Use SSE2 MOVQ instruction for Arraycopy") \
1041 \
1042 product(bool, UseUnalignedLoadStores, false, \
1043 "Use SSE2 MOVDQU instruction for Arraycopy") \
1044 \
1045 product(intx, FieldsAllocationStyle, 1, \
1046 "0 - type based with oops first, 1 - with oops last") \
1047 \
1048 product(bool, CompactFields, true, \
1049 "Allocate nonstatic fields in gaps between previous fields") \
1050 \
1051 notproduct(bool, PrintCompactFieldsSavings, false, \
1052 "Print how many words were saved with CompactFields") \
1053 \
1054 product(bool, UseBiasedLocking, true, \
1055 "Enable biased locking in JVM") \
1056 \
1057 product(intx, BiasedLockingStartupDelay, 4000, \
1058 "Number of milliseconds to wait before enabling biased locking") \
1059 \
1060 diagnostic(bool, PrintBiasedLockingStatistics, false, \
1061 "Print statistics of biased locking in JVM") \
1062 \
1063 product(intx, BiasedLockingBulkRebiasThreshold, 20, \
1064 "Threshold of number of revocations per type to try to " \
1065 "rebias all objects in the heap of that type") \
1066 \
1067 product(intx, BiasedLockingBulkRevokeThreshold, 40, \
1068 "Threshold of number of revocations per type to permanently " \
1069 "revoke biases of all objects in the heap of that type") \
1070 \
1071 product(intx, BiasedLockingDecayTime, 25000, \
1072 "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \
1073 "type after previous bulk rebias") \
1074 \
1075 /* tracing */ \
1076 \
1077 notproduct(bool, TraceRuntimeCalls, false, \
1078 "Trace run-time calls") \
1079 \
1080 develop(bool, TraceJNICalls, false, \
1081 "Trace JNI calls") \
1082 \
1083 notproduct(bool, TraceJVMCalls, false, \
1084 "Trace JVM calls") \
1085 \
1086 product(ccstr, TraceJVMTI, NULL, \
1087 "Trace flags for JVMTI functions and events") \
1088 \
1089 product(bool, ForceFullGCJVMTIEpilogues, false, \
1090 "Force 'Full GC' was done semantics for JVMTI GC epilogues") \
1091 \
1092 /* This option can change an EMCP method into an obsolete method. */ \
1093 /* This can affect tests that except specific methods to be EMCP. */ \
1094 /* This option should be used with caution. */ \
1095 product(bool, StressLdcRewrite, false, \
1096 "Force ldc -> ldc_w rewrite during RedefineClasses") \
1097 \
1098 product(intx, TraceRedefineClasses, 0, \
1099 "Trace level for JVMTI RedefineClasses") \
1100 \
1101 /* change to false by default sometime after Mustang */ \
1102 product(bool, VerifyMergedCPBytecodes, true, \
1103 "Verify bytecodes after RedefineClasses constant pool merging") \
1104 \
1105 develop(bool, TraceJNIHandleAllocation, false, \
1106 "Trace allocation/deallocation of JNI handle blocks") \
1107 \
1108 develop(bool, TraceThreadEvents, false, \
1109 "Trace all thread events") \
1110 \
1111 develop(bool, TraceBytecodes, false, \
1112 "Trace bytecode execution") \
1113 \
1114 develop(bool, TraceClassInitialization, false, \
1115 "Trace class initialization") \
1116 \
1117 develop(bool, TraceExceptions, false, \
1118 "Trace exceptions") \
1119 \
1120 develop(bool, TraceICs, false, \
1121 "Trace inline cache changes") \
1122 \
1123 notproduct(bool, TraceInvocationCounterOverflow, false, \
1124 "Trace method invocation counter overflow") \
1125 \
1126 develop(bool, TraceInlineCacheClearing, false, \
1127 "Trace clearing of inline caches in nmethods") \
1128 \
1129 develop(bool, TraceDependencies, false, \
1130 "Trace dependencies") \
1131 \
1132 develop(bool, VerifyDependencies, trueInDebug, \
1133 "Exercise and verify the compilation dependency mechanism") \
1134 \
1135 develop(bool, TraceNewOopMapGeneration, false, \
1136 "Trace OopMapGeneration") \
1137 \
1138 develop(bool, TraceNewOopMapGenerationDetailed, false, \
1139 "Trace OopMapGeneration: print detailed cell states") \
1140 \
1141 develop(bool, TimeOopMap, false, \
1142 "Time calls to GenerateOopMap::compute_map() in sum") \
1143 \
1144 develop(bool, TimeOopMap2, false, \
1145 "Time calls to GenerateOopMap::compute_map() individually") \
1146 \
1147 develop(bool, TraceMonitorMismatch, false, \
1148 "Trace monitor matching failures during OopMapGeneration") \
1149 \
1150 develop(bool, TraceOopMapRewrites, false, \
1151 "Trace rewritting of method oops during oop map generation") \
1152 \
1153 develop(bool, TraceSafepoint, false, \
1154 "Trace safepoint operations") \
1155 \
1156 develop(bool, TraceICBuffer, false, \
1157 "Trace usage of IC buffer") \
1158 \
1159 develop(bool, TraceCompiledIC, false, \
1160 "Trace changes of compiled IC") \
1161 \
1162 notproduct(bool, TraceZapDeadLocals, false, \
1163 "Trace zapping dead locals") \
1164 \
1165 develop(bool, TraceStartupTime, false, \
1166 "Trace setup time") \
1167 \
1168 develop(bool, TraceHPI, false, \
1169 "Trace Host Porting Interface (HPI)") \
1170 \
1171 product(ccstr, HPILibPath, NULL, \
1172 "Specify alternate path to HPI library") \
1173 \
1174 develop(bool, TraceProtectionDomainVerification, false, \
1175 "Trace protection domain verifcation") \
1176 \
1177 develop(bool, TraceClearedExceptions, false, \
1178 "Prints when an exception is forcibly cleared") \
1179 \
1180 product(bool, TraceClassResolution, false, \
1181 "Trace all constant pool resolutions (for debugging)") \
1182 \
1183 product(bool, TraceBiasedLocking, false, \
1184 "Trace biased locking in JVM") \
1185 \
1186 product(bool, TraceMonitorInflation, false, \
1187 "Trace monitor inflation in JVM") \
1188 \
1189 /* assembler */ \
1190 product(bool, Use486InstrsOnly, false, \
1191 "Use 80486 Compliant instruction subset") \
1192 \
1193 /* gc */ \
1194 \
1195 product(bool, UseSerialGC, false, \
1196 "Use the serial garbage collector") \
1197 \
1198 experimental(bool, UseG1GC, false, \
1199 "Use the Garbage-First garbage collector") \
1200 \
1201 product(bool, UseParallelGC, false, \
1202 "Use the Parallel Scavenge garbage collector") \
1203 \
1204 product(bool, UseParallelOldGC, false, \
1205 "Use the Parallel Old garbage collector") \
1206 \
1207 product(bool, UseParallelOldGCCompacting, true, \
1208 "In the Parallel Old garbage collector use parallel compaction") \
1209 \
1210 product(bool, UseParallelDensePrefixUpdate, true, \
1211 "In the Parallel Old garbage collector use parallel dense" \
1212 " prefix update") \
1213 \
1214 product(uintx, HeapMaximumCompactionInterval, 20, \
1215 "How often should we maximally compact the heap (not allowing " \
1216 "any dead space)") \
1217 \
1218 product(uintx, HeapFirstMaximumCompactionCount, 3, \
1219 "The collection count for the first maximum compaction") \
1220 \
1221 product(bool, UseMaximumCompactionOnSystemGC, true, \
1222 "In the Parallel Old garbage collector maximum compaction for " \
1223 "a system GC") \
1224 \
1225 product(uintx, ParallelOldDeadWoodLimiterMean, 50, \
1226 "The mean used by the par compact dead wood" \
1227 "limiter (a number between 0-100).") \
1228 \
1229 product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \
1230 "The standard deviation used by the par compact dead wood" \
1231 "limiter (a number between 0-100).") \
1232 \
1233 product(bool, UseParallelOldGCDensePrefix, true, \
1234 "Use a dense prefix with the Parallel Old garbage collector") \
1235 \
1236 product(uintx, ParallelGCThreads, 0, \
1237 "Number of parallel threads parallel gc will use") \
1238 \
1239 product(uintx, ParallelCMSThreads, 0, \
1240 "Max number of threads CMS will use for concurrent work") \
1241 \
1242 develop(bool, ParallelOldGCSplitALot, false, \
1243 "Provoke splitting (copying data from a young gen space to" \
1244 "multiple destination spaces)") \
1245 \
1246 develop(uintx, ParallelOldGCSplitInterval, 3, \
1247 "How often to provoke splitting a young gen space") \
1248 \
1249 develop(bool, TraceRegionTasksQueuing, false, \
1250 "Trace the queuing of the region tasks") \
1251 \
1252 product(uintx, ParallelMarkingThreads, 0, \
1253 "Number of marking threads concurrent gc will use") \
1254 \
1255 product(uintx, YoungPLABSize, 4096, \
1256 "Size of young gen promotion labs (in HeapWords)") \
1257 \
1258 product(uintx, OldPLABSize, 1024, \
1259 "Size of old gen promotion labs (in HeapWords)") \
1260 \
1261 product(uintx, GCTaskTimeStampEntries, 200, \
1262 "Number of time stamp entries per gc worker thread") \
1263 \
1264 product(bool, AlwaysTenure, false, \
1265 "Always tenure objects in eden. (ParallelGC only)") \
1266 \
1267 product(bool, NeverTenure, false, \
1268 "Never tenure objects in eden, May tenure on overflow" \
1269 " (ParallelGC only)") \
1270 \
1271 product(bool, ScavengeBeforeFullGC, true, \
1272 "Scavenge youngest generation before each full GC," \
1273 " used with UseParallelGC") \
1274 \
1275 develop(bool, ScavengeWithObjectsInToSpace, false, \
1276 "Allow scavenges to occur when to_space contains objects.") \
1277 \
1278 product(bool, UseConcMarkSweepGC, false, \
1279 "Use Concurrent Mark-Sweep GC in the old generation") \
1280 \
1281 product(bool, ExplicitGCInvokesConcurrent, false, \
1282 "A System.gc() request invokes a concurrent collection;" \
1283 " (effective only when UseConcMarkSweepGC)") \
1284 \
1285 product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \
1286 "A System.gc() request invokes a concurrent collection and" \
1287 " also unloads classes during such a concurrent gc cycle " \
1288 " (effective only when UseConcMarkSweepGC)") \
1289 \
1290 develop(bool, UseCMSAdaptiveFreeLists, true, \
1291 "Use Adaptive Free Lists in the CMS generation") \
1292 \
1293 develop(bool, UseAsyncConcMarkSweepGC, true, \
1294 "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\
1295 \
1296 develop(bool, RotateCMSCollectionTypes, false, \
1297 "Rotate the CMS collections among concurrent and STW") \
1298 \
1299 product(bool, UseCMSBestFit, true, \
1300 "Use CMS best fit allocation strategy") \
1301 \
1302 product(bool, UseCMSCollectionPassing, true, \
1303 "Use passing of collection from background to foreground") \
1304 \
1305 product(bool, UseParNewGC, false, \
1306 "Use parallel threads in the new generation.") \
1307 \
1308 product(bool, ParallelGCVerbose, false, \
1309 "Verbose output for parallel GC.") \
1310 \
1311 product(intx, ParallelGCBufferWastePct, 10, \
1312 "wasted fraction of parallel allocation buffer.") \
1313 \
1314 product(bool, ParallelGCRetainPLAB, true, \
1315 "Retain parallel allocation buffers across scavenges.") \
1316 \
1317 product(intx, TargetPLABWastePct, 10, \
1318 "target wasted space in last buffer as pct of overall allocation")\
1319 \
1320 product(uintx, PLABWeight, 75, \
1321 "Percentage (0-100) used to weight the current sample when" \
1322 "computing exponentially decaying average for ResizePLAB.") \
1323 \
1324 product(bool, ResizePLAB, true, \
1325 "Dynamically resize (survivor space) promotion labs") \
1326 \
1327 product(bool, PrintPLAB, false, \
1328 "Print (survivor space) promotion labs sizing decisions") \
1329 \
1330 product(intx, ParGCArrayScanChunk, 50, \
1331 "Scan a subset and push remainder, if array is bigger than this") \
1332 \
1333 product(bool, ParGCUseLocalOverflow, false, \
1334 "Instead of a global overflow list, use local overflow stacks") \
1335 \
1336 product(bool, ParGCTrimOverflow, true, \
1337 "Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \
1338 \
1339 notproduct(bool, ParGCWorkQueueOverflowALot, false, \
1340 "Whether we should simulate work queue overflow in ParNew") \
1341 \
1342 notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \
1343 "An `interval' counter that determines how frequently" \
1344 " we simulate overflow; a smaller number increases frequency") \
1345 \
1346 product(uintx, ParGCDesiredObjsFromOverflowList, 20, \
1347 "The desired number of objects to claim from the overflow list") \
1348 \
1349 product(uintx, CMSParPromoteBlocksToClaim, 50, \
1350 "Number of blocks to attempt to claim when refilling CMS LAB for "\
1351 "parallel GC.") \
1352 \
1353 product(bool, AlwaysPreTouch, false, \
1354 "It forces all freshly committed pages to be pre-touched.") \
1355 \
1356 product(bool, CMSUseOldDefaults, false, \
1357 "A flag temporarily introduced to allow reverting to some older" \
1358 "default settings; older as of 6.0 ") \
1359 \
1360 product(intx, CMSYoungGenPerWorker, 16*M, \
1361 "The amount of young gen chosen by default per GC worker " \
1362 "thread available ") \
1363 \
1364 product(bool, GCOverheadReporting, false, \
1365 "Enables the GC overhead reporting facility") \
1366 \
1367 product(intx, GCOverheadReportingPeriodMS, 100, \
1368 "Reporting period for conc GC overhead reporting, in ms ") \
1369 \
1370 product(bool, CMSIncrementalMode, false, \
1371 "Whether CMS GC should operate in \"incremental\" mode") \
1372 \
1373 product(uintx, CMSIncrementalDutyCycle, 10, \
1374 "CMS incremental mode duty cycle (a percentage, 0-100). If" \
1375 "CMSIncrementalPacing is enabled, then this is just the initial" \
1376 "value") \
1377 \
1378 product(bool, CMSIncrementalPacing, true, \
1379 "Whether the CMS incremental mode duty cycle should be " \
1380 "automatically adjusted") \
1381 \
1382 product(uintx, CMSIncrementalDutyCycleMin, 0, \
1383 "Lower bound on the duty cycle when CMSIncrementalPacing is" \
1384 "enabled (a percentage, 0-100).") \
1385 \
1386 product(uintx, CMSIncrementalSafetyFactor, 10, \
1387 "Percentage (0-100) used to add conservatism when computing the" \
1388 "duty cycle.") \
1389 \
1390 product(uintx, CMSIncrementalOffset, 0, \
1391 "Percentage (0-100) by which the CMS incremental mode duty cycle" \
1392 "is shifted to the right within the period between young GCs") \
1393 \
1394 product(uintx, CMSExpAvgFactor, 25, \
1395 "Percentage (0-100) used to weight the current sample when" \
1396 "computing exponential averages for CMS statistics.") \
1397 \
1398 product(uintx, CMS_FLSWeight, 50, \
1399 "Percentage (0-100) used to weight the current sample when" \
1400 "computing exponentially decating averages for CMS FLS statistics.") \
1401 \
1402 product(uintx, CMS_FLSPadding, 2, \
1403 "The multiple of deviation from mean to use for buffering" \
1404 "against volatility in free list demand.") \
1405 \
1406 product(uintx, FLSCoalescePolicy, 2, \
1407 "CMS: Aggression level for coalescing, increasing from 0 to 4") \
1408 \
1409 product(uintx, CMS_SweepWeight, 50, \
1410 "Percentage (0-100) used to weight the current sample when" \
1411 "computing exponentially decaying average for inter-sweep duration.") \
1412 \
1413 product(uintx, CMS_SweepPadding, 2, \
1414 "The multiple of deviation from mean to use for buffering" \
1415 "against volatility in inter-sweep duration.") \
1416 \
1417 product(uintx, CMS_SweepTimerThresholdMillis, 10, \
1418 "Skip block flux-rate sampling for an epoch unless inter-sweep " \
1419 " duration exceeds this threhold in milliseconds") \
1420 \
1421 develop(bool, CMSTraceIncrementalMode, false, \
1422 "Trace CMS incremental mode") \
1423 \
1424 develop(bool, CMSTraceIncrementalPacing, false, \
1425 "Trace CMS incremental mode pacing computation") \
1426 \
1427 develop(bool, CMSTraceThreadState, false, \
1428 "Trace the CMS thread state (enable the trace_state() method)") \
1429 \
1430 product(bool, CMSClassUnloadingEnabled, false, \
1431 "Whether class unloading enabled when using CMS GC") \
1432 \
1433 product(uintx, CMSClassUnloadingMaxInterval, 0, \
1434 "When CMS class unloading is enabled, the maximum CMS cycle count"\
1435 " for which classes may not be unloaded") \
1436 \
1437 product(bool, CMSCompactWhenClearAllSoftRefs, true, \
1438 "Compact when asked to collect CMS gen with clear_all_soft_refs") \
1439 \
1440 product(bool, UseCMSCompactAtFullCollection, true, \
1441 "Use mark sweep compact at full collections") \
1442 \
1443 product(uintx, CMSFullGCsBeforeCompaction, 0, \
1444 "Number of CMS full collection done before compaction if > 0") \
1445 \
1446 develop(intx, CMSDictionaryChoice, 0, \
1447 "Use BinaryTreeDictionary as default in the CMS generation") \
1448 \
1449 product(uintx, CMSIndexedFreeListReplenish, 4, \
1450 "Replenish and indexed free list with this number of chunks") \
1451 \
1452 product(bool, CMSLoopWarn, false, \
1453 "Warn in case of excessive CMS looping") \
1454 \
1455 develop(bool, CMSOverflowEarlyRestoration, false, \
1456 "Whether preserved marks should be restored early") \
1457 \
1458 product(uintx, CMSMarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \
1459 "Size of CMS marking stack") \
1460 \
1461 product(uintx, CMSMarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \
1462 "Max size of CMS marking stack") \
1463 \
1464 notproduct(bool, CMSMarkStackOverflowALot, false, \
1465 "Whether we should simulate frequent marking stack / work queue" \
1466 " overflow") \
1467 \
1468 notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \
1469 "An `interval' counter that determines how frequently" \
1470 " we simulate overflow; a smaller number increases frequency") \
1471 \
1472 product(uintx, CMSMaxAbortablePrecleanLoops, 0, \
1473 "(Temporary, subject to experimentation)" \
1474 "Maximum number of abortable preclean iterations, if > 0") \
1475 \
1476 product(intx, CMSMaxAbortablePrecleanTime, 5000, \
1477 "(Temporary, subject to experimentation)" \
1478 "Maximum time in abortable preclean in ms") \
1479 \
1480 product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \
1481 "(Temporary, subject to experimentation)" \
1482 "Nominal minimum work per abortable preclean iteration") \
1483 \
1484 product(intx, CMSAbortablePrecleanWaitMillis, 100, \
1485 "(Temporary, subject to experimentation)" \
1486 " Time that we sleep between iterations when not given" \
1487 " enough work per iteration") \
1488 \
1489 product(uintx, CMSRescanMultiple, 32, \
1490 "Size (in cards) of CMS parallel rescan task") \
1491 \
1492 product(uintx, CMSConcMarkMultiple, 32, \
1493 "Size (in cards) of CMS concurrent MT marking task") \
1494 \
1495 product(uintx, CMSRevisitStackSize, 1*M, \
1496 "Size of CMS KlassKlass revisit stack") \
1497 \
1498 product(bool, CMSAbortSemantics, false, \
1499 "Whether abort-on-overflow semantics is implemented") \
1500 \
1501 product(bool, CMSParallelRemarkEnabled, true, \
1502 "Whether parallel remark enabled (only if ParNewGC)") \
1503 \
1504 product(bool, CMSParallelSurvivorRemarkEnabled, true, \
1505 "Whether parallel remark of survivor space" \
1506 " enabled (effective only if CMSParallelRemarkEnabled)") \
1507 \
1508 product(bool, CMSPLABRecordAlways, true, \
1509 "Whether to always record survivor space PLAB bdries" \
1510 " (effective only if CMSParallelSurvivorRemarkEnabled)") \
1511 \
1512 product(bool, CMSConcurrentMTEnabled, true, \
1513 "Whether multi-threaded concurrent work enabled (if ParNewGC)") \
1514 \
1515 product(bool, CMSPermGenPrecleaningEnabled, true, \
1516 "Whether concurrent precleaning enabled in perm gen" \
1517 " (effective only when CMSPrecleaningEnabled is true)") \
1518 \
1519 product(bool, CMSPrecleaningEnabled, true, \
1520 "Whether concurrent precleaning enabled") \
1521 \
1522 product(uintx, CMSPrecleanIter, 3, \
1523 "Maximum number of precleaning iteration passes") \
1524 \
1525 product(uintx, CMSPrecleanNumerator, 2, \
1526 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \
1527 " ratio") \
1528 \
1529 product(uintx, CMSPrecleanDenominator, 3, \
1530 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \
1531 " ratio") \
1532 \
1533 product(bool, CMSPrecleanRefLists1, true, \
1534 "Preclean ref lists during (initial) preclean phase") \
1535 \
1536 product(bool, CMSPrecleanRefLists2, false, \
1537 "Preclean ref lists during abortable preclean phase") \
1538 \
1539 product(bool, CMSPrecleanSurvivors1, false, \
1540 "Preclean survivors during (initial) preclean phase") \
1541 \
1542 product(bool, CMSPrecleanSurvivors2, true, \
1543 "Preclean survivors during abortable preclean phase") \
1544 \
1545 product(uintx, CMSPrecleanThreshold, 1000, \
1546 "Don't re-iterate if #dirty cards less than this") \
1547 \
1548 product(bool, CMSCleanOnEnter, true, \
1549 "Clean-on-enter optimization for reducing number of dirty cards") \
1550 \
1551 product(uintx, CMSRemarkVerifyVariant, 1, \
1552 "Choose variant (1,2) of verification following remark") \
1553 \
1554 product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \
1555 "If Eden used is below this value, don't try to schedule remark") \
1556 \
1557 product(uintx, CMSScheduleRemarkEdenPenetration, 50, \
1558 "The Eden occupancy % at which to try and schedule remark pause") \
1559 \
1560 product(uintx, CMSScheduleRemarkSamplingRatio, 5, \
1561 "Start sampling Eden top at least before yg occupancy reaches" \
1562 " 1/<ratio> of the size at which we plan to schedule remark") \
1563 \
1564 product(uintx, CMSSamplingGrain, 16*K, \
1565 "The minimum distance between eden samples for CMS (see above)") \
1566 \
1567 product(bool, CMSScavengeBeforeRemark, false, \
1568 "Attempt scavenge before the CMS remark step") \
1569 \
1570 develop(bool, CMSTraceSweeper, false, \
1571 "Trace some actions of the CMS sweeper") \
1572 \
1573 product(uintx, CMSWorkQueueDrainThreshold, 10, \
1574 "Don't drain below this size per parallel worker/thief") \
1575 \
1576 product(intx, CMSWaitDuration, 2000, \
1577 "Time in milliseconds that CMS thread waits for young GC") \
1578 \
1579 product(bool, CMSYield, true, \
1580 "Yield between steps of concurrent mark & sweep") \
1581 \
1582 product(uintx, CMSBitMapYieldQuantum, 10*M, \
1583 "Bitmap operations should process at most this many bits" \
1584 "between yields") \
1585 \
1586 diagnostic(bool, FLSVerifyAllHeapReferences, false, \
1587 "Verify that all refs across the FLS boundary " \
1588 " are to valid objects") \
1589 \
1590 diagnostic(bool, FLSVerifyLists, false, \
1591 "Do lots of (expensive) FreeListSpace verification") \
1592 \
1593 diagnostic(bool, FLSVerifyIndexTable, false, \
1594 "Do lots of (expensive) FLS index table verification") \
1595 \
1596 develop(bool, FLSVerifyDictionary, false, \
1597 "Do lots of (expensive) FLS dictionary verification") \
1598 \
1599 develop(bool, VerifyBlockOffsetArray, false, \
1600 "Do (expensive!) block offset array verification") \
1601 \
1602 product(bool, BlockOffsetArrayUseUnallocatedBlock, trueInDebug, \
1603 "Maintain _unallocated_block in BlockOffsetArray" \
1604 " (currently applicable only to CMS collector)") \
1605 \
1606 develop(bool, TraceCMSState, false, \
1607 "Trace the state of the CMS collection") \
1608 \
1609 product(intx, RefDiscoveryPolicy, 0, \
1610 "Whether reference-based(0) or referent-based(1)") \
1611 \
1612 product(bool, ParallelRefProcEnabled, false, \
1613 "Enable parallel reference processing whenever possible") \
1614 \
1615 product(bool, ParallelRefProcBalancingEnabled, true, \
1616 "Enable balancing of reference processing queues") \
1617 \
1618 product(intx, CMSTriggerRatio, 80, \
1619 "Percentage of MinHeapFreeRatio in CMS generation that is " \
1620 " allocated before a CMS collection cycle commences") \
1621 \
1622 product(intx, CMSTriggerPermRatio, 80, \
1623 "Percentage of MinHeapFreeRatio in the CMS perm generation that" \
1624 " is allocated before a CMS collection cycle commences, that " \
1625 " also collects the perm generation") \
1626 \
1627 product(uintx, CMSBootstrapOccupancy, 50, \
1628 "Percentage CMS generation occupancy at which to " \
1629 " initiate CMS collection for bootstrapping collection stats") \
1630 \
1631 product(intx, CMSInitiatingOccupancyFraction, -1, \
1632 "Percentage CMS generation occupancy to start a CMS collection " \
1633 " cycle (A negative value means that CMSTriggerRatio is used)") \
1634 \
1635 product(intx, CMSInitiatingPermOccupancyFraction, -1, \
1636 "Percentage CMS perm generation occupancy to start a CMScollection"\
1637 " cycle (A negative value means that CMSTriggerPermRatio is used)")\
1638 \
1639 product(bool, UseCMSInitiatingOccupancyOnly, false, \
1640 "Only use occupancy as a crierion for starting a CMS collection") \
1641 \
1642 product(intx, CMSIsTooFullPercentage, 98, \
1643 "An absolute ceiling above which CMS will always consider the" \
1644 " perm gen ripe for collection") \
1645 \
1646 develop(bool, CMSTestInFreeList, false, \
1647 "Check if the coalesced range is already in the " \
1648 "free lists as claimed.") \
1649 \
1650 notproduct(bool, CMSVerifyReturnedBytes, false, \
1651 "Check that all the garbage collected was returned to the " \
1652 "free lists.") \
1653 \
1654 notproduct(bool, ScavengeALot, false, \
1655 "Force scavenge at every Nth exit from the runtime system " \
1656 "(N=ScavengeALotInterval)") \
1657 \
1658 develop(bool, FullGCALot, false, \
1659 "Force full gc at every Nth exit from the runtime system " \
1660 "(N=FullGCALotInterval)") \
1661 \
1662 notproduct(bool, GCALotAtAllSafepoints, false, \
1663 "Enforce ScavengeALot/GCALot at all potential safepoints") \
1664 \
1665 product(bool, HandlePromotionFailure, true, \
1666 "The youngest generation collection does not require" \
1667 " a guarantee of full promotion of all live objects.") \
1668 \
1669 notproduct(bool, PromotionFailureALot, false, \
1670 "Use promotion failure handling on every youngest generation " \
1671 "collection") \
1672 \
1673 develop(uintx, PromotionFailureALotCount, 1000, \
1674 "Number of promotion failures occurring at ParGCAllocBuffer" \
1675 "refill attempts (ParNew) or promotion attempts " \
1676 "(other young collectors) ") \
1677 \
1678 develop(uintx, PromotionFailureALotInterval, 5, \
1679 "Total collections between promotion failures alot") \
1680 \
1681 develop(intx, WorkStealingSleepMillis, 1, \
1682 "Sleep time when sleep is used for yields") \
1683 \
1684 develop(uintx, WorkStealingYieldsBeforeSleep, 1000, \
1685 "Number of yields before a sleep is done during workstealing") \
1686 \
1687 develop(uintx, WorkStealingHardSpins, 4096, \
1688 "Number of iterations in a spin loop between checks on " \
1689 "time out of hard spin") \
1690 \
1691 develop(uintx, WorkStealingSpinToYieldRatio, 10, \
1692 "Ratio of hard spins to calls to yield") \
1693 \
1694 product(uintx, PreserveMarkStackSize, 1024, \
1695 "Size for stack used in promotion failure handling") \
1696 \
1697 product_pd(bool, UseTLAB, "Use thread-local object allocation") \
1698 \
1699 product_pd(bool, ResizeTLAB, \
1700 "Dynamically resize tlab size for threads") \
1701 \
1702 product(bool, ZeroTLAB, false, \
1703 "Zero out the newly created TLAB") \
1704 \
1705 product(bool, FastTLABRefill, true, \
1706 "Use fast TLAB refill code") \
1707 \
1708 product(bool, PrintTLAB, false, \
1709 "Print various TLAB related information") \
1710 \
1711 product(bool, TLABStats, true, \
1712 "Print various TLAB related information") \
1713 \
1714 product(bool, PrintRevisitStats, false, \
1715 "Print revisit (klass and MDO) stack related information") \
1716 \
1717 product_pd(bool, NeverActAsServerClassMachine, \
1718 "Never act like a server-class machine") \
1719 \
1720 product(bool, AlwaysActAsServerClassMachine, false, \
1721 "Always act like a server-class machine") \
1722 \
1723 product_pd(uintx, DefaultMaxRAM, \
1724 "Maximum real memory size for setting server class heap size") \
1725 \
1726 product(uintx, DefaultMaxRAMFraction, 4, \
1727 "Fraction (1/n) of real memory used for server class max heap") \
1728 \
1729 product(uintx, DefaultInitialRAMFraction, 64, \
1730 "Fraction (1/n) of real memory used for server class initial heap") \
1731 \
1732 product(bool, UseAutoGCSelectPolicy, false, \
1733 "Use automatic collection selection policy") \
1734 \
1735 product(uintx, AutoGCSelectPauseMillis, 5000, \
1736 "Automatic GC selection pause threshhold in ms") \
1737 \
1738 product(bool, UseAdaptiveSizePolicy, true, \
1739 "Use adaptive generation sizing policies") \
1740 \
1741 product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \
1742 "Use adaptive survivor sizing policies") \
1743 \
1744 product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \
1745 "Use adaptive young-old sizing policies at minor collections") \
1746 \
1747 product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \
1748 "Use adaptive young-old sizing policies at major collections") \
1749 \
1750 product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \
1751 "Use statistics from System.GC for adaptive size policy") \
1752 \
1753 product(bool, UseAdaptiveGCBoundary, false, \
1754 "Allow young-old boundary to move") \
1755 \
1756 develop(bool, TraceAdaptiveGCBoundary, false, \
1757 "Trace young-old boundary moves") \
1758 \
1759 develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \
1760 "Resize the virtual spaces of the young or old generations") \
1761 \
1762 product(uintx, AdaptiveSizeThroughPutPolicy, 0, \
1763 "Policy for changeing generation size for throughput goals") \
1764 \
1765 product(uintx, AdaptiveSizePausePolicy, 0, \
1766 "Policy for changing generation size for pause goals") \
1767 \
1768 develop(bool, PSAdjustTenuredGenForMinorPause, false, \
1769 "Adjust tenured generation to achive a minor pause goal") \
1770 \
1771 develop(bool, PSAdjustYoungGenForMajorPause, false, \
1772 "Adjust young generation to achive a major pause goal") \
1773 \
1774 product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \
1775 "Number of steps where heuristics is used before data is used") \
1776 \
1777 develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \
1778 "Number of collections before the adaptive sizing is started") \
1779 \
1780 product(uintx, AdaptiveSizePolicyOutputInterval, 0, \
1781 "Collecton interval for printing information, zero => never") \
1782 \
1783 product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \
1784 "Use adaptive minimum footprint as a goal") \
1785 \
1786 product(uintx, AdaptiveSizePolicyWeight, 10, \
1787 "Weight given to exponential resizing, between 0 and 100") \
1788 \
1789 product(uintx, AdaptiveTimeWeight, 25, \
1790 "Weight given to time in adaptive policy, between 0 and 100") \
1791 \
1792 product(uintx, PausePadding, 1, \
1793 "How much buffer to keep for pause time") \
1794 \
1795 product(uintx, PromotedPadding, 3, \
1796 "How much buffer to keep for promotion failure") \
1797 \
1798 product(uintx, SurvivorPadding, 3, \
1799 "How much buffer to keep for survivor overflow") \
1800 \
1801 product(uintx, AdaptivePermSizeWeight, 20, \
1802 "Weight for perm gen exponential resizing, between 0 and 100") \
1803 \
1804 product(uintx, PermGenPadding, 3, \
1805 "How much buffer to keep for perm gen sizing") \
1806 \
1807 product(uintx, ThresholdTolerance, 10, \
1808 "Allowed collection cost difference between generations") \
1809 \
1810 product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \
1811 "If collection costs are within margin, reduce both by full delta") \
1812 \
1813 product(uintx, YoungGenerationSizeIncrement, 20, \
1814 "Adaptive size percentage change in young generation") \
1815 \
1816 product(uintx, YoungGenerationSizeSupplement, 80, \
1817 "Supplement to YoungedGenerationSizeIncrement used at startup") \
1818 \
1819 product(uintx, YoungGenerationSizeSupplementDecay, 8, \
1820 "Decay factor to YoungedGenerationSizeSupplement") \
1821 \
1822 product(uintx, TenuredGenerationSizeIncrement, 20, \
1823 "Adaptive size percentage change in tenured generation") \
1824 \
1825 product(uintx, TenuredGenerationSizeSupplement, 80, \
1826 "Supplement to TenuredGenerationSizeIncrement used at startup") \
1827 \
1828 product(uintx, TenuredGenerationSizeSupplementDecay, 2, \
1829 "Decay factor to TenuredGenerationSizeIncrement") \
1830 \
1831 product(uintx, MaxGCPauseMillis, max_uintx, \
1832 "Adaptive size policy maximum GC pause time goal in msec, " \
1833 "or (G1 Only) the max. GC time per MMU time slice") \
1834 \
1835 product(intx, GCPauseIntervalMillis, 500, \
1836 "Time slice for MMU specification") \
1837 \
1838 product(uintx, MaxGCMinorPauseMillis, max_uintx, \
1839 "Adaptive size policy maximum GC minor pause time goal in msec") \
1840 \
1841 product(uintx, GCTimeRatio, 99, \
1842 "Adaptive size policy application time to GC time ratio") \
1843 \
1844 product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \
1845 "Adaptive size scale down factor for shrinking") \
1846 \
1847 product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \
1848 "Adaptive size decays the major cost for long major intervals") \
1849 \
1850 product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \
1851 "Time scale over which major costs decay") \
1852 \
1853 product(uintx, MinSurvivorRatio, 3, \
1854 "Minimum ratio of young generation/survivor space size") \
1855 \
1856 product(uintx, InitialSurvivorRatio, 8, \
1857 "Initial ratio of eden/survivor space size") \
1858 \
1859 product(uintx, BaseFootPrintEstimate, 256*M, \
1860 "Estimate of footprint other than Java Heap") \
1861 \
1862 product(bool, UseGCOverheadLimit, true, \
1863 "Use policy to limit of proportion of time spent in GC " \
1864 "before an OutOfMemory error is thrown") \
1865 \
1866 product(uintx, GCTimeLimit, 98, \
1867 "Limit of proportion of time spent in GC before an OutOfMemory" \
1868 "error is thrown (used with GCHeapFreeLimit)") \
1869 \
1870 product(uintx, GCHeapFreeLimit, 2, \
1871 "Minimum percentage of free space after a full GC before an " \
1872 "OutOfMemoryError is thrown (used with GCTimeLimit)") \
1873 \
1874 develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \
1875 "Number of consecutive collections before gc time limit fires") \
1876 \
1877 product(bool, PrintAdaptiveSizePolicy, false, \
1878 "Print information about AdaptiveSizePolicy") \
1879 \
1880 product(intx, PrefetchCopyIntervalInBytes, -1, \
1881 "How far ahead to prefetch destination area (<= 0 means off)") \
1882 \
1883 product(intx, PrefetchScanIntervalInBytes, -1, \
1884 "How far ahead to prefetch scan area (<= 0 means off)") \
1885 \
1886 product(intx, PrefetchFieldsAhead, -1, \
1887 "How many fields ahead to prefetch in oop scan (<= 0 means off)") \
1888 \
1889 develop(bool, UsePrefetchQueue, true, \
1890 "Use the prefetch queue during PS promotion") \
1891 \
1892 diagnostic(bool, VerifyBeforeExit, trueInDebug, \
1893 "Verify system before exiting") \
1894 \
1895 diagnostic(bool, VerifyBeforeGC, false, \
1896 "Verify memory system before GC") \
1897 \
1898 diagnostic(bool, VerifyAfterGC, false, \
1899 "Verify memory system after GC") \
1900 \
1901 diagnostic(bool, VerifyDuringGC, false, \
1902 "Verify memory system during GC (between phases)") \
1903 \
1904 diagnostic(bool, GCParallelVerificationEnabled, true, \
1905 "Enable parallel memory system verification") \
1906 \
1907 diagnostic(bool, VerifyRememberedSets, false, \
1908 "Verify GC remembered sets") \
1909 \
1910 diagnostic(bool, VerifyObjectStartArray, true, \
1911 "Verify GC object start array if verify before/after") \
1912 \
1913 product(bool, DisableExplicitGC, false, \
1914 "Tells whether calling System.gc() does a full GC") \
1915 \
1916 notproduct(bool, CheckMemoryInitialization, false, \
1917 "Checks memory initialization") \
1918 \
1919 product(bool, CollectGen0First, false, \
1920 "Collect youngest generation before each full GC") \
1921 \
1922 diagnostic(bool, BindCMSThreadToCPU, false, \
1923 "Bind CMS Thread to CPU if possible") \
1924 \
1925 diagnostic(uintx, CPUForCMSThread, 0, \
1926 "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \
1927 \
1928 product(bool, BindGCTaskThreadsToCPUs, false, \
1929 "Bind GCTaskThreads to CPUs if possible") \
1930 \
1931 product(bool, UseGCTaskAffinity, false, \
1932 "Use worker affinity when asking for GCTasks") \
1933 \
1934 product(uintx, ProcessDistributionStride, 4, \
1935 "Stride through processors when distributing processes") \
1936 \
1937 product(uintx, CMSCoordinatorYieldSleepCount, 10, \
1938 "number of times the coordinator GC thread will sleep while " \
1939 "yielding before giving up and resuming GC") \
1940 \
1941 product(uintx, CMSYieldSleepCount, 0, \
1942 "number of times a GC thread (minus the coordinator) " \
1943 "will sleep while yielding before giving up and resuming GC") \
1944 \
1945 notproduct(bool, PrintFlagsFinal, false, \
1946 "Print all command line flags after argument processing") \
1947 \
1948 /* gc tracing */ \
1949 manageable(bool, PrintGC, false, \
1950 "Print message at garbage collect") \
1951 \
1952 manageable(bool, PrintGCDetails, false, \
1953 "Print more details at garbage collect") \
1954 \
1955 manageable(bool, PrintGCDateStamps, false, \
1956 "Print date stamps at garbage collect") \
1957 \
1958 manageable(bool, PrintGCTimeStamps, false, \
1959 "Print timestamps at garbage collect") \
1960 \
1961 product(bool, PrintGCTaskTimeStamps, false, \
1962 "Print timestamps for individual gc worker thread tasks") \
1963 \
1964 develop(intx, ConcGCYieldTimeout, 0, \
1965 "If non-zero, assert that GC threads yield within this # of ms.") \
1966 \
1967 notproduct(bool, TraceMarkSweep, false, \
1968 "Trace mark sweep") \
1969 \
1970 product(bool, PrintReferenceGC, false, \
1971 "Print times spent handling reference objects during GC " \
1972 " (enabled only when PrintGCDetails)") \
1973 \
1974 develop(bool, TraceReferenceGC, false, \
1975 "Trace handling of soft/weak/final/phantom references") \
1976 \
1977 develop(bool, TraceFinalizerRegistration, false, \
1978 "Trace registration of final references") \
1979 \
1980 notproduct(bool, TraceScavenge, false, \
1981 "Trace scavenge") \
1982 \
1983 product_rw(bool, TraceClassLoading, false, \
1984 "Trace all classes loaded") \
1985 \
1986 product(bool, TraceClassLoadingPreorder, false, \
1987 "Trace all classes loaded in order referenced (not loaded)") \
1988 \
1989 product_rw(bool, TraceClassUnloading, false, \
1990 "Trace unloading of classes") \
1991 \
1992 product_rw(bool, TraceLoaderConstraints, false, \
1993 "Trace loader constraints") \
1994 \
1995 product(bool, TraceGen0Time, false, \
1996 "Trace accumulated time for Gen 0 collection") \
1997 \
1998 product(bool, TraceGen1Time, false, \
1999 "Trace accumulated time for Gen 1 collection") \
2000 \
2001 product(bool, PrintTenuringDistribution, false, \
2002 "Print tenuring age information") \
2003 \
2004 product_rw(bool, PrintHeapAtGC, false, \
2005 "Print heap layout before and after each GC") \
2006 \
2007 product_rw(bool, PrintHeapAtGCExtended, false, \
2008 "Prints extended information about the layout of the heap " \
2009 "when -XX:+PrintHeapAtGC is set") \
2010 \
2011 product(bool, PrintHeapAtSIGBREAK, true, \
2012 "Print heap layout in response to SIGBREAK") \
2013 \
2014 manageable(bool, PrintClassHistogramBeforeFullGC, false, \
2015 "Print a class histogram before any major stop-world GC") \
2016 \
2017 manageable(bool, PrintClassHistogramAfterFullGC, false, \
2018 "Print a class histogram after any major stop-world GC") \
2019 \
2020 manageable(bool, PrintClassHistogram, false, \
2021 "Print a histogram of class instances") \
2022 \
2023 develop(bool, TraceWorkGang, false, \
2024 "Trace activities of work gangs") \
2025 \
2026 product(bool, TraceParallelOldGCTasks, false, \
2027 "Trace multithreaded GC activity") \
2028 \
2029 develop(bool, TraceBlockOffsetTable, false, \
2030 "Print BlockOffsetTable maps") \
2031 \
2032 develop(bool, TraceCardTableModRefBS, false, \
2033 "Print CardTableModRefBS maps") \
2034 \
2035 develop(bool, TraceGCTaskManager, false, \
2036 "Trace actions of the GC task manager") \
2037 \
2038 develop(bool, TraceGCTaskQueue, false, \
2039 "Trace actions of the GC task queues") \
2040 \
2041 develop(bool, TraceGCTaskThread, false, \
2042 "Trace actions of the GC task threads") \
2043 \
2044 product(bool, PrintParallelOldGCPhaseTimes, false, \
2045 "Print the time taken by each parallel old gc phase." \
2046 "PrintGCDetails must also be enabled.") \
2047 \
2048 develop(bool, TraceParallelOldGCMarkingPhase, false, \
2049 "Trace parallel old gc marking phase") \
2050 \
2051 develop(bool, TraceParallelOldGCSummaryPhase, false, \
2052 "Trace parallel old gc summary phase") \
2053 \
2054 develop(bool, TraceParallelOldGCCompactionPhase, false, \
2055 "Trace parallel old gc compaction phase") \
2056 \
2057 develop(bool, TraceParallelOldGCDensePrefix, false, \
2058 "Trace parallel old gc dense prefix computation") \
2059 \
2060 develop(bool, IgnoreLibthreadGPFault, false, \
2061 "Suppress workaround for libthread GP fault") \
2062 \
2063 product(bool, PrintJNIGCStalls, false, \
2064 "Print diagnostic message when GC is stalled" \
2065 "by JNI critical section") \
2066 \
2067 /* JVMTI heap profiling */ \
2068 \
2069 diagnostic(bool, TraceJVMTIObjectTagging, false, \
2070 "Trace JVMTI object tagging calls") \
2071 \
2072 diagnostic(bool, VerifyBeforeIteration, false, \
2073 "Verify memory system before JVMTI iteration") \
2074 \
2075 /* compiler interface */ \
2076 \
2077 develop(bool, CIPrintCompilerName, false, \
2078 "when CIPrint is active, print the name of the active compiler") \
2079 \
2080 develop(bool, CIPrintCompileQueue, false, \
2081 "display the contents of the compile queue whenever a " \
2082 "compilation is enqueued") \
2083 \
2084 develop(bool, CIPrintRequests, false, \
2085 "display every request for compilation") \
2086 \
2087 product(bool, CITime, false, \
2088 "collect timing information for compilation") \
2089 \
2090 develop(bool, CITimeEach, false, \
2091 "display timing information after each successful compilation") \
2092 \
2093 develop(bool, CICountOSR, true, \
2094 "use a separate counter when assigning ids to osr compilations") \
2095 \
2096 develop(bool, CICompileNatives, true, \
2097 "compile native methods if supported by the compiler") \
2098 \
2099 develop_pd(bool, CICompileOSR, \
2100 "compile on stack replacement methods if supported by the " \
2101 "compiler") \
2102 \
2103 develop(bool, CIPrintMethodCodes, false, \
2104 "print method bytecodes of the compiled code") \
2105 \
2106 develop(bool, CIPrintTypeFlow, false, \
2107 "print the results of ciTypeFlow analysis") \
2108 \
2109 develop(bool, CITraceTypeFlow, false, \
2110 "detailed per-bytecode tracing of ciTypeFlow analysis") \
2111 \
2112 develop(intx, CICloneLoopTestLimit, 100, \
2113 "size limit for blocks heuristically cloned in ciTypeFlow") \
2114 \
2115 /* temp diagnostics */ \
2116 \
2117 diagnostic(bool, TraceRedundantCompiles, false, \
2118 "Have compile broker print when a request already in the queue is"\
2119 " requested again") \
2120 \
2121 diagnostic(bool, InitialCompileFast, false, \
2122 "Initial compile at CompLevel_fast_compile") \
2123 \
2124 diagnostic(bool, InitialCompileReallyFast, false, \
2125 "Initial compile at CompLevel_really_fast_compile (no profile)") \
2126 \
2127 diagnostic(bool, FullProfileOnReInterpret, true, \
2128 "On re-interpret unc-trap compile next at CompLevel_fast_compile")\
2129 \
2130 /* compiler */ \
2131 \
2132 product(intx, CICompilerCount, CI_COMPILER_COUNT, \
2133 "Number of compiler threads to run") \
2134 \
2135 product(intx, CompilationPolicyChoice, 0, \
2136 "which compilation policy (0/1)") \
2137 \
2138 develop(bool, UseStackBanging, true, \
2139 "use stack banging for stack overflow checks (required for " \
2140 "proper StackOverflow handling; disable only to measure cost " \
2141 "of stackbanging)") \
2142 \
2143 develop(bool, Use24BitFPMode, true, \
2144 "Set 24-bit FPU mode on a per-compile basis ") \
2145 \
2146 develop(bool, Use24BitFP, true, \
2147 "use FP instructions that produce 24-bit precise results") \
2148 \
2149 develop(bool, UseStrictFP, true, \
2150 "use strict fp if modifier strictfp is set") \
2151 \
2152 develop(bool, GenerateSynchronizationCode, true, \
2153 "generate locking/unlocking code for synchronized methods and " \
2154 "monitors") \
2155 \
2156 develop(bool, GenerateCompilerNullChecks, true, \
2157 "Generate explicit null checks for loads/stores/calls") \
2158 \
2159 develop(bool, GenerateRangeChecks, true, \
2160 "Generate range checks for array accesses") \
2161 \
2162 develop_pd(bool, ImplicitNullChecks, \
2163 "generate code for implicit null checks") \
2164 \
2165 product(bool, PrintSafepointStatistics, false, \
2166 "print statistics about safepoint synchronization") \
2167 \
2168 product(intx, PrintSafepointStatisticsCount, 300, \
2169 "total number of safepoint statistics collected " \
2170 "before printing them out") \
2171 \
2172 product(intx, PrintSafepointStatisticsTimeout, -1, \
2173 "print safepoint statistics only when safepoint takes" \
2174 " more than PrintSafepointSatisticsTimeout in millis") \
2175 \
2176 develop(bool, InlineAccessors, true, \
2177 "inline accessor methods (get/set)") \
2178 \
2179 product(bool, Inline, true, \
2180 "enable inlining") \
2181 \
2182 product(bool, ClipInlining, true, \
2183 "clip inlining if aggregate method exceeds DesiredMethodLimit") \
2184 \
2185 develop(bool, UseCHA, true, \
2186 "enable CHA") \
2187 \
2188 product(bool, UseTypeProfile, true, \
2189 "Check interpreter profile for historically monomorphic calls") \
2190 \
2191 product(intx, TypeProfileMajorReceiverPercent, 90, \
2192 "% of major receiver type to all profiled receivers") \
2193 \
2194 notproduct(bool, TimeCompiler, false, \
2195 "time the compiler") \
2196 \
2197 notproduct(bool, TimeCompiler2, false, \
2198 "detailed time the compiler (requires +TimeCompiler)") \
2199 \
2200 diagnostic(bool, PrintInlining, false, \
2201 "prints inlining optimizations") \
2202 \
2203 diagnostic(bool, PrintIntrinsics, false, \
2204 "prints attempted and successful inlining of intrinsics") \
2205 \
2206 product(bool, UseCountLeadingZerosInstruction, false, \
2207 "Use count leading zeros instruction") \
2208 \
2209 product(bool, UsePopCountInstruction, false, \
2210 "Use population count instruction") \
2211 \
2212 diagnostic(ccstrlist, DisableIntrinsic, "", \
2213 "do not expand intrinsics whose (internal) names appear here") \
2214 \
2215 develop(bool, StressReflectiveCode, false, \
2216 "Use inexact types at allocations, etc., to test reflection") \
2217 \
2218 develop(bool, EagerInitialization, false, \
2219 "Eagerly initialize classes if possible") \
2220 \
2221 product(bool, Tier1UpdateMethodData, trueInTiered, \
2222 "Update methodDataOops in Tier1-generated code") \
2223 \
2224 develop(bool, TraceMethodReplacement, false, \
2225 "Print when methods are replaced do to recompilation") \
2226 \
2227 develop(bool, PrintMethodFlushing, false, \
2228 "print the nmethods being flushed") \
2229 \
2230 notproduct(bool, LogMultipleMutexLocking, false, \
2231 "log locking and unlocking of mutexes (only if multiple locks " \
2232 "are held)") \
2233 \
2234 develop(bool, UseRelocIndex, false, \
2235 "use an index to speed random access to relocations") \
2236 \
2237 develop(bool, StressCodeBuffers, false, \
2238 "Exercise code buffer expansion and other rare state changes") \
2239 \
2240 diagnostic(bool, DebugNonSafepoints, trueInDebug, \
2241 "Generate extra debugging info for non-safepoints in nmethods") \
2242 \
2243 diagnostic(bool, DebugInlinedCalls, true, \
2244 "If false, restricts profiled locations to the root method only") \
2245 \
2246 product(bool, PrintVMOptions, trueInDebug, \
2247 "print VM flag settings") \
2248 \
2249 product(bool, IgnoreUnrecognizedVMOptions, false, \
2250 "Ignore unrecognized VM options") \
2251 \
2252 diagnostic(bool, SerializeVMOutput, true, \
2253 "Use a mutex to serialize output to tty and hotspot.log") \
2254 \
2255 diagnostic(bool, DisplayVMOutput, true, \
2256 "Display all VM output on the tty, independently of LogVMOutput") \
2257 \
2258 diagnostic(bool, LogVMOutput, trueInDebug, \
2259 "Save VM output to hotspot.log, or to LogFile") \
2260 \
2261 diagnostic(ccstr, LogFile, NULL, \
2262 "If LogVMOutput is on, save VM output to this file [hotspot.log]") \
2263 \
2264 product(ccstr, ErrorFile, NULL, \
2265 "If an error occurs, save the error data to this file " \
2266 "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \
2267 \
2268 product(bool, DisplayVMOutputToStderr, false, \
2269 "If DisplayVMOutput is true, display all VM output to stderr") \
2270 \
2271 product(bool, DisplayVMOutputToStdout, false, \
2272 "If DisplayVMOutput is true, display all VM output to stdout") \
2273 \
2274 product(bool, UseHeavyMonitors, false, \
2275 "use heavyweight instead of lightweight Java monitors") \
2276 \
2277 notproduct(bool, PrintSymbolTableSizeHistogram, false, \
2278 "print histogram of the symbol table") \
2279 \
2280 notproduct(bool, ExitVMOnVerifyError, false, \
2281 "standard exit from VM if bytecode verify error " \
2282 "(only in debug mode)") \
2283 \
2284 notproduct(ccstr, AbortVMOnException, NULL, \
2285 "Call fatal if this exception is thrown. Example: " \
2286 "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \
2287 \
2288 develop(bool, DebugVtables, false, \
2289 "add debugging code to vtable dispatch") \
2290 \
2291 develop(bool, PrintVtables, false, \
2292 "print vtables when printing klass") \
2293 \
2294 notproduct(bool, PrintVtableStats, false, \
2295 "print vtables stats at end of run") \
2296 \
2297 develop(bool, TraceCreateZombies, false, \
2298 "trace creation of zombie nmethods") \
2299 \
2300 notproduct(bool, IgnoreLockingAssertions, false, \
2301 "disable locking assertions (for speed)") \
2302 \
2303 notproduct(bool, VerifyLoopOptimizations, false, \
2304 "verify major loop optimizations") \
2305 \
2306 product(bool, RangeCheckElimination, true, \
2307 "Split loop iterations to eliminate range checks") \
2308 \
2309 develop_pd(bool, UncommonNullCast, \
2310 "track occurrences of null in casts; adjust compiler tactics") \
2311 \
2312 develop(bool, TypeProfileCasts, true, \
2313 "treat casts like calls for purposes of type profiling") \
2314 \
2315 develop(bool, MonomorphicArrayCheck, true, \
2316 "Uncommon-trap array store checks that require full type check") \
2317 \
2318 develop(bool, DelayCompilationDuringStartup, true, \
2319 "Delay invoking the compiler until main application class is " \
2320 "loaded") \
2321 \
2322 develop(bool, CompileTheWorld, false, \
2323 "Compile all methods in all classes in bootstrap class path " \
2324 "(stress test)") \
2325 \
2326 develop(bool, CompileTheWorldPreloadClasses, true, \
2327 "Preload all classes used by a class before start loading") \
2328 \
2329 notproduct(bool, CompileTheWorldIgnoreInitErrors, false, \
2330 "Compile all methods although class initializer failed") \
2331 \
2332 develop(bool, TraceIterativeGVN, false, \
2333 "Print progress during Iterative Global Value Numbering") \
2334 \
2335 develop(bool, FillDelaySlots, true, \
2336 "Fill delay slots (on SPARC only)") \
2337 \
2338 develop(bool, VerifyIterativeGVN, false, \
2339 "Verify Def-Use modifications during sparse Iterative Global " \
2340 "Value Numbering") \
2341 \
2342 notproduct(bool, TracePhaseCCP, false, \
2343 "Print progress during Conditional Constant Propagation") \
2344 \
2345 develop(bool, TimeLivenessAnalysis, false, \
2346 "Time computation of bytecode liveness analysis") \
2347 \
2348 develop(bool, TraceLivenessGen, false, \
2349 "Trace the generation of liveness analysis information") \
2350 \
2351 notproduct(bool, TraceLivenessQuery, false, \
2352 "Trace queries of liveness analysis information") \
2353 \
2354 notproduct(bool, CollectIndexSetStatistics, false, \
2355 "Collect information about IndexSets") \
2356 \
2357 develop(bool, PrintDominators, false, \
2358 "Print out dominator trees for GVN") \
2359 \
2360 develop(bool, UseLoopSafepoints, true, \
2361 "Generate Safepoint nodes in every loop") \
2362 \
2363 notproduct(bool, TraceCISCSpill, false, \
2364 "Trace allocators use of cisc spillable instructions") \
2365 \
2366 notproduct(bool, TraceSpilling, false, \
2367 "Trace spilling") \
2368 \
2369 develop(bool, DeutschShiffmanExceptions, true, \
2370 "Fast check to find exception handler for precisely typed " \
2371 "exceptions") \
2372 \
2373 product(bool, SplitIfBlocks, true, \
2374 "Clone compares and control flow through merge points to fold " \
2375 "some branches") \
2376 \
2377 develop(intx, FastAllocateSizeLimit, 128*K, \
2378 /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \
2379 "Inline allocations larger than this in doublewords must go slow")\
2380 \
2381 product(bool, AggressiveOpts, false, \
2382 "Enable aggressive optimizations - see arguments.cpp") \
2383 \
2384 product(bool, UseStringCache, false, \
2385 "Enable String cache capabilities on String.java") \
2386 \
2387 /* statistics */ \
2388 develop(bool, UseVTune, false, \
2389 "enable support for Intel's VTune profiler") \
2390 \
2391 develop(bool, CountCompiledCalls, false, \
2392 "counts method invocations") \
2393 \
2394 notproduct(bool, CountRuntimeCalls, false, \
2395 "counts VM runtime calls") \
2396 \
2397 develop(bool, CountJNICalls, false, \
2398 "counts jni method invocations") \
2399 \
2400 notproduct(bool, CountJVMCalls, false, \
2401 "counts jvm method invocations") \
2402 \
2403 notproduct(bool, CountRemovableExceptions, false, \
2404 "count exceptions that could be replaced by branches due to " \
2405 "inlining") \
2406 \
2407 notproduct(bool, ICMissHistogram, false, \
2408 "produce histogram of IC misses") \
2409 \
2410 notproduct(bool, PrintClassStatistics, false, \
2411 "prints class statistics at end of run") \
2412 \
2413 notproduct(bool, PrintMethodStatistics, false, \
2414 "prints method statistics at end of run") \
2415 \
2416 /* interpreter */ \
2417 develop(bool, ClearInterpreterLocals, false, \
2418 "Always clear local variables of interpreter activations upon " \
2419 "entry") \
2420 \
2421 product_pd(bool, RewriteBytecodes, \
2422 "Allow rewriting of bytecodes (bytecodes are not immutable)") \
2423 \
2424 product_pd(bool, RewriteFrequentPairs, \
2425 "Rewrite frequently used bytecode pairs into a single bytecode") \
2426 \
2427 diagnostic(bool, PrintInterpreter, false, \
2428 "Prints the generated interpreter code") \
2429 \
2430 product(bool, UseInterpreter, true, \
2431 "Use interpreter for non-compiled methods") \
2432 \
2433 develop(bool, UseFastSignatureHandlers, true, \
2434 "Use fast signature handlers for native calls") \
2435 \
2436 develop(bool, UseV8InstrsOnly, false, \
2437 "Use SPARC-V8 Compliant instruction subset") \
2438 \
2439 product(bool, UseNiagaraInstrs, false, \
2440 "Use Niagara-efficient instruction subset") \
2441 \
2442 develop(bool, UseCASForSwap, false, \
2443 "Do not use swap instructions, but only CAS (in a loop) on SPARC")\
2444 \
2445 product(bool, UseLoopCounter, true, \
2446 "Increment invocation counter on backward branch") \
2447 \
2448 product(bool, UseFastEmptyMethods, true, \
2449 "Use fast method entry code for empty methods") \
2450 \
2451 product(bool, UseFastAccessorMethods, true, \
2452 "Use fast method entry code for accessor methods") \
2453 \
2454 product_pd(bool, UseOnStackReplacement, \
2455 "Use on stack replacement, calls runtime if invoc. counter " \
2456 "overflows in loop") \
2457 \
2458 notproduct(bool, TraceOnStackReplacement, false, \
2459 "Trace on stack replacement") \
2460 \
2461 develop(bool, PoisonOSREntry, true, \
2462 "Detect abnormal calls to OSR code") \
2463 \
2464 product_pd(bool, PreferInterpreterNativeStubs, \
2465 "Use always interpreter stubs for native methods invoked via " \
2466 "interpreter") \
2467 \
2468 develop(bool, CountBytecodes, false, \
2469 "Count number of bytecodes executed") \
2470 \
2471 develop(bool, PrintBytecodeHistogram, false, \
2472 "Print histogram of the executed bytecodes") \
2473 \
2474 develop(bool, PrintBytecodePairHistogram, false, \
2475 "Print histogram of the executed bytecode pairs") \
2476 \
2477 diagnostic(bool, PrintSignatureHandlers, false, \
2478 "Print code generated for native method signature handlers") \
2479 \
2480 develop(bool, VerifyOops, false, \
2481 "Do plausibility checks for oops") \
2482 \
2483 develop(bool, CheckUnhandledOops, false, \
2484 "Check for unhandled oops in VM code") \
2485 \
2486 develop(bool, VerifyJNIFields, trueInDebug, \
2487 "Verify jfieldIDs for instance fields") \
2488 \
2489 notproduct(bool, VerifyJNIEnvThread, false, \
2490 "Verify JNIEnv.thread == Thread::current() when entering VM " \
2491 "from JNI") \
2492 \
2493 develop(bool, VerifyFPU, false, \
2494 "Verify FPU state (check for NaN's, etc.)") \
2495 \
2496 develop(bool, VerifyThread, false, \
2497 "Watch the thread register for corruption (SPARC only)") \
2498 \
2499 develop(bool, VerifyActivationFrameSize, false, \
2500 "Verify that activation frame didn't become smaller than its " \
2501 "minimal size") \
2502 \
2503 develop(bool, TraceFrequencyInlining, false, \
2504 "Trace frequency based inlining") \
2505 \
2506 notproduct(bool, TraceTypeProfile, false, \
2507 "Trace type profile") \
2508 \
2509 develop_pd(bool, InlineIntrinsics, \
2510 "Inline intrinsics that can be statically resolved") \
2511 \
2512 product_pd(bool, ProfileInterpreter, \
2513 "Profile at the bytecode level during interpretation") \
2514 \
2515 develop_pd(bool, ProfileTraps, \
2516 "Profile deoptimization traps at the bytecode level") \
2517 \
2518 product(intx, ProfileMaturityPercentage, 20, \
2519 "number of method invocations/branches (expressed as % of " \
2520 "CompileThreshold) before using the method's profile") \
2521 \
2522 develop(bool, PrintMethodData, false, \
2523 "Print the results of +ProfileInterpreter at end of run") \
2524 \
2525 develop(bool, VerifyDataPointer, trueInDebug, \
2526 "Verify the method data pointer during interpreter profiling") \
2527 \
2528 develop(bool, VerifyCompiledCode, false, \
2529 "Include miscellaneous runtime verifications in nmethod code; " \
2530 "off by default because it disturbs nmethod size heuristics.") \
2531 \
2532 \
2533 /* compilation */ \
2534 product(bool, UseCompiler, true, \
2535 "use compilation") \
2536 \
2537 develop(bool, TraceCompilationPolicy, false, \
2538 "Trace compilation policy") \
2539 \
2540 develop(bool, TimeCompilationPolicy, false, \
2541 "Time the compilation policy") \
2542 \
2543 product(bool, UseCounterDecay, true, \
2544 "adjust recompilation counters") \
2545 \
2546 develop(intx, CounterHalfLifeTime, 30, \
2547 "half-life time of invocation counters (in secs)") \
2548 \
2549 develop(intx, CounterDecayMinIntervalLength, 500, \
2550 "Min. ms. between invocation of CounterDecay") \
2551 \
2552 product(bool, AlwaysCompileLoopMethods, false, \
2553 "when using recompilation, never interpret methods " \
2554 "containing loops") \
2555 \
2556 product(bool, DontCompileHugeMethods, true, \
2557 "don't compile methods > HugeMethodLimit") \
2558 \
2559 /* Bytecode escape analysis estimation. */ \
2560 product(bool, EstimateArgEscape, true, \
2561 "Analyze bytecodes to estimate escape state of arguments") \
2562 \
2563 product(intx, BCEATraceLevel, 0, \
2564 "How much tracing to do of bytecode escape analysis estimates") \
2565 \
2566 product(intx, MaxBCEAEstimateLevel, 5, \
2567 "Maximum number of nested calls that are analyzed by BC EA.") \
2568 \
2569 product(intx, MaxBCEAEstimateSize, 150, \
2570 "Maximum bytecode size of a method to be analyzed by BC EA.") \
2571 \
2572 product(intx, AllocatePrefetchStyle, 1, \
2573 "0 = no prefetch, " \
2574 "1 = prefetch instructions for each allocation, " \
2575 "2 = use TLAB watermark to gate allocation prefetch") \
2576 \
2577 product(intx, AllocatePrefetchDistance, -1, \
2578 "Distance to prefetch ahead of allocation pointer") \
2579 \
2580 product(intx, AllocatePrefetchLines, 1, \
2581 "Number of lines to prefetch ahead of allocation pointer") \
2582 \
2583 product(intx, AllocatePrefetchStepSize, 16, \
2584 "Step size in bytes of sequential prefetch instructions") \
2585 \
2586 product(intx, AllocatePrefetchInstr, 0, \
2587 "Prefetch instruction to prefetch ahead of allocation pointer") \
2588 \
2589 product(intx, ReadPrefetchInstr, 0, \
2590 "Prefetch instruction to prefetch ahead") \
2591 \
2592 /* deoptimization */ \
2593 develop(bool, TraceDeoptimization, false, \
2594 "Trace deoptimization") \
2595 \
2596 develop(bool, DebugDeoptimization, false, \
2597 "Tracing various information while debugging deoptimization") \
2598 \
2599 product(intx, SelfDestructTimer, 0, \
2600 "Will cause VM to terminate after a given time (in minutes) " \
2601 "(0 means off)") \
2602 \
2603 product(intx, MaxJavaStackTraceDepth, 1024, \
2604 "Max. no. of lines in the stack trace for Java exceptions " \
2605 "(0 means all)") \
2606 \
2607 develop(intx, GuaranteedSafepointInterval, 1000, \
2608 "Guarantee a safepoint (at least) every so many milliseconds " \
2609 "(0 means none)") \
2610 \
2611 product(intx, SafepointTimeoutDelay, 10000, \
2612 "Delay in milliseconds for option SafepointTimeout") \
2613 \
2614 product(intx, NmethodSweepFraction, 4, \
2615 "Number of invocations of sweeper to cover all nmethods") \
2616 \
2617 notproduct(intx, MemProfilingInterval, 500, \
2618 "Time between each invocation of the MemProfiler") \
2619 \
2620 develop(intx, MallocCatchPtr, -1, \
2621 "Hit breakpoint when mallocing/freeing this pointer") \
2622 \
2623 notproduct(intx, AssertRepeat, 1, \
2624 "number of times to evaluate expression in assert " \
2625 "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \
2626 \
2627 notproduct(ccstrlist, SuppressErrorAt, "", \
2628 "List of assertions (file:line) to muzzle") \
2629 \
2630 notproduct(uintx, HandleAllocationLimit, 1024, \
2631 "Threshold for HandleMark allocation when +TraceHandleAllocation "\
2632 "is used") \
2633 \
2634 develop(uintx, TotalHandleAllocationLimit, 1024, \
2635 "Threshold for total handle allocation when " \
2636 "+TraceHandleAllocation is used") \
2637 \
2638 develop(intx, StackPrintLimit, 100, \
2639 "number of stack frames to print in VM-level stack dump") \
2640 \
2641 notproduct(intx, MaxElementPrintSize, 256, \
2642 "maximum number of elements to print") \
2643 \
2644 notproduct(intx, MaxSubklassPrintSize, 4, \
2645 "maximum number of subklasses to print when printing klass") \
2646 \
2647 develop(intx, MaxInlineLevel, 9, \
2648 "maximum number of nested calls that are inlined") \
2649 \
2650 develop(intx, MaxRecursiveInlineLevel, 1, \
2651 "maximum number of nested recursive calls that are inlined") \
2652 \
2653 product_pd(intx, InlineSmallCode, \
2654 "Only inline already compiled methods if their code size is " \
2655 "less than this") \
2656 \
2657 product(intx, MaxInlineSize, 35, \
2658 "maximum bytecode size of a method to be inlined") \
2659 \
2660 product_pd(intx, FreqInlineSize, \
2661 "maximum bytecode size of a frequent method to be inlined") \
2662 \
2663 develop(intx, MaxTrivialSize, 6, \
2664 "maximum bytecode size of a trivial method to be inlined") \
2665 \
2666 develop(intx, MinInliningThreshold, 250, \
2667 "min. invocation count a method needs to have to be inlined") \
2668 \
2669 develop(intx, AlignEntryCode, 4, \
2670 "aligns entry code to specified value (in bytes)") \
2671 \
2672 develop(intx, MethodHistogramCutoff, 100, \
2673 "cutoff value for method invoc. histogram (+CountCalls)") \
2674 \
2675 develop(intx, ProfilerNumberOfInterpretedMethods, 25, \
2676 "# of interpreted methods to show in profile") \
2677 \
2678 develop(intx, ProfilerNumberOfCompiledMethods, 25, \
2679 "# of compiled methods to show in profile") \
2680 \
2681 develop(intx, ProfilerNumberOfStubMethods, 25, \
2682 "# of stub methods to show in profile") \
2683 \
2684 develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \
2685 "# of runtime stub nodes to show in profile") \
2686 \
2687 product(intx, ProfileIntervalsTicks, 100, \
2688 "# of ticks between printing of interval profile " \
2689 "(+ProfileIntervals)") \
2690 \
2691 notproduct(intx, ScavengeALotInterval, 1, \
2692 "Interval between which scavenge will occur with +ScavengeALot") \
2693 \
2694 notproduct(intx, FullGCALotInterval, 1, \
2695 "Interval between which full gc will occur with +FullGCALot") \
2696 \
2697 notproduct(intx, FullGCALotStart, 0, \
2698 "For which invocation to start FullGCAlot") \
2699 \
2700 notproduct(intx, FullGCALotDummies, 32*K, \
2701 "Dummy object allocated with +FullGCALot, forcing all objects " \
2702 "to move") \
2703 \
2704 develop(intx, DontYieldALotInterval, 10, \
2705 "Interval between which yields will be dropped (milliseconds)") \
2706 \
2707 develop(intx, MinSleepInterval, 1, \
2708 "Minimum sleep() interval (milliseconds) when " \
2709 "ConvertSleepToYield is off (used for SOLARIS)") \
2710 \
2711 product(intx, EventLogLength, 2000, \
2712 "maximum nof events in event log") \
2713 \
2714 develop(intx, ProfilerPCTickThreshold, 15, \
2715 "Number of ticks in a PC buckets to be a hotspot") \
2716 \
2717 notproduct(intx, DeoptimizeALotInterval, 5, \
2718 "Number of exits until DeoptimizeALot kicks in") \
2719 \
2720 notproduct(intx, ZombieALotInterval, 5, \
2721 "Number of exits until ZombieALot kicks in") \
2722 \
2723 develop(bool, StressNonEntrant, false, \
2724 "Mark nmethods non-entrant at registration") \
2725 \
2726 diagnostic(intx, MallocVerifyInterval, 0, \
2727 "if non-zero, verify C heap after every N calls to " \
2728 "malloc/realloc/free") \
2729 \
2730 diagnostic(intx, MallocVerifyStart, 0, \
2731 "if non-zero, start verifying C heap after Nth call to " \
2732 "malloc/realloc/free") \
2733 \
2734 product(intx, TypeProfileWidth, 2, \
2735 "number of receiver types to record in call/cast profile") \
2736 \
2737 develop(intx, BciProfileWidth, 2, \
2738 "number of return bci's to record in ret profile") \
2739 \
2740 product(intx, PerMethodRecompilationCutoff, 400, \
2741 "After recompiling N times, stay in the interpreter (-1=>'Inf')") \
2742 \
2743 product(intx, PerBytecodeRecompilationCutoff, 100, \
2744 "Per-BCI limit on repeated recompilation (-1=>'Inf')") \
2745 \
2746 product(intx, PerMethodTrapLimit, 100, \
2747 "Limit on traps (of one kind) in a method (includes inlines)") \
2748 \
2749 product(intx, PerBytecodeTrapLimit, 4, \
2750 "Limit on traps (of one kind) at a particular BCI") \
2751 \
2752 develop(intx, FreqCountInvocations, 1, \
2753 "Scaling factor for branch frequencies (deprecated)") \
2754 \
2755 develop(intx, InlineFrequencyRatio, 20, \
2756 "Ratio of call site execution to caller method invocation") \
2757 \
2758 develop_pd(intx, InlineFrequencyCount, \
2759 "Count of call site execution necessary to trigger frequent " \
2760 "inlining") \
2761 \
2762 develop(intx, InlineThrowCount, 50, \
2763 "Force inlining of interpreted methods that throw this often") \
2764 \
2765 develop(intx, InlineThrowMaxSize, 200, \
2766 "Force inlining of throwing methods smaller than this") \
2767 \
2768 product(intx, AliasLevel, 3, \
2769 "0 for no aliasing, 1 for oop/field/static/array split, " \
2770 "2 for class split, 3 for unique instances") \
2771 \
2772 develop(bool, VerifyAliases, false, \
2773 "perform extra checks on the results of alias analysis") \
2774 \
2775 develop(intx, ProfilerNodeSize, 1024, \
2776 "Size in K to allocate for the Profile Nodes of each thread") \
2777 \
2778 develop(intx, V8AtomicOperationUnderLockSpinCount, 50, \
2779 "Number of times to spin wait on a v8 atomic operation lock") \
2780 \
2781 product(intx, ReadSpinIterations, 100, \
2782 "Number of read attempts before a yield (spin inner loop)") \
2783 \
2784 product_pd(intx, PreInflateSpin, \
2785 "Number of times to spin wait before inflation") \
2786 \
2787 product(intx, PreBlockSpin, 10, \
2788 "Number of times to spin in an inflated lock before going to " \
2789 "an OS lock") \
2790 \
2791 /* gc parameters */ \
2792 product(uintx, MaxHeapSize, ScaleForWordSize(64*M), \
2793 "Default maximum size for object heap (in bytes)") \
2794 \
2795 product_pd(uintx, NewSize, \
2796 "Default size of new generation (in bytes)") \
2797 \
2798 product(uintx, MaxNewSize, max_uintx, \
2799 "Maximum size of new generation (in bytes)") \
2800 \
2801 product(uintx, PretenureSizeThreshold, 0, \
2802 "Max size in bytes of objects allocated in DefNew generation") \
2803 \
2804 product_pd(uintx, TLABSize, \
2805 "Default (or starting) size of TLAB (in bytes)") \
2806 \
2807 product(uintx, MinTLABSize, 2*K, \
2808 "Minimum allowed TLAB size (in bytes)") \
2809 \
2810 product(uintx, TLABAllocationWeight, 35, \
2811 "Allocation averaging weight") \
2812 \
2813 product(uintx, TLABWasteTargetPercent, 1, \
2814 "Percentage of Eden that can be wasted") \
2815 \
2816 product(uintx, TLABRefillWasteFraction, 64, \
2817 "Max TLAB waste at a refill (internal fragmentation)") \
2818 \
2819 product(uintx, TLABWasteIncrement, 4, \
2820 "Increment allowed waste at slow allocation") \
2821 \
2822 product_pd(intx, SurvivorRatio, \
2823 "Ratio of eden/survivor space size") \
2824 \
2825 product_pd(intx, NewRatio, \
2826 "Ratio of new/old generation sizes") \
2827 \
2828 product(uintx, MaxLiveObjectEvacuationRatio, 100, \
2829 "Max percent of eden objects that will be live at scavenge") \
2830 \
2831 product_pd(uintx, NewSizeThreadIncrease, \
2832 "Additional size added to desired new generation size per " \
2833 "non-daemon thread (in bytes)") \
2834 \
2835 product(uintx, OldSize, ScaleForWordSize(4096*K), \
2836 "Default size of tenured generation (in bytes)") \
2837 \
2838 product_pd(uintx, PermSize, \
2839 "Default size of permanent generation (in bytes)") \
2840 \
2841 product_pd(uintx, MaxPermSize, \
2842 "Maximum size of permanent generation (in bytes)") \
2843 \
2844 product(uintx, MinHeapFreeRatio, 40, \
2845 "Min percentage of heap free after GC to avoid expansion") \
2846 \
2847 product(uintx, MaxHeapFreeRatio, 70, \
2848 "Max percentage of heap free after GC to avoid shrinking") \
2849 \
2850 product(intx, SoftRefLRUPolicyMSPerMB, 1000, \
2851 "Number of milliseconds per MB of free space in the heap") \
2852 \
2853 product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \
2854 "Min change in heap space due to GC (in bytes)") \
2855 \
2856 product(uintx, MinPermHeapExpansion, ScaleForWordSize(256*K), \
2857 "Min expansion of permanent heap (in bytes)") \
2858 \
2859 product(uintx, MaxPermHeapExpansion, ScaleForWordSize(4*M), \
2860 "Max expansion of permanent heap without full GC (in bytes)") \
2861 \
2862 product(intx, QueuedAllocationWarningCount, 0, \
2863 "Number of times an allocation that queues behind a GC " \
2864 "will retry before printing a warning") \
2865 \
2866 diagnostic(uintx, VerifyGCStartAt, 0, \
2867 "GC invoke count where +VerifyBefore/AfterGC kicks in") \
2868 \
2869 diagnostic(intx, VerifyGCLevel, 0, \
2870 "Generation level at which to start +VerifyBefore/AfterGC") \
2871 \
2872 develop(uintx, ExitAfterGCNum, 0, \
2873 "If non-zero, exit after this GC.") \
2874 \
2875 product(intx, MaxTenuringThreshold, 15, \
2876 "Maximum value for tenuring threshold") \
2877 \
2878 product(intx, InitialTenuringThreshold, 7, \
2879 "Initial value for tenuring threshold") \
2880 \
2881 product(intx, TargetSurvivorRatio, 50, \
2882 "Desired percentage of survivor space used after scavenge") \
2883 \
2884 product(uintx, MarkSweepDeadRatio, 5, \
2885 "Percentage (0-100) of the old gen allowed as dead wood." \
2886 "Serial mark sweep treats this as both the min and max value." \
2887 "CMS uses this value only if it falls back to mark sweep." \
2888 "Par compact uses a variable scale based on the density of the" \
2889 "generation and treats this as the max value when the heap is" \
2890 "either completely full or completely empty. Par compact also" \
2891 "has a smaller default value; see arguments.cpp.") \
2892 \
2893 product(uintx, PermMarkSweepDeadRatio, 20, \
2894 "Percentage (0-100) of the perm gen allowed as dead wood." \
2895 "See MarkSweepDeadRatio for collector-specific comments.") \
2896 \
2897 product(intx, MarkSweepAlwaysCompactCount, 4, \
2898 "How often should we fully compact the heap (ignoring the dead " \
2899 "space parameters)") \
2900 \
2901 product(intx, PrintCMSStatistics, 0, \
2902 "Statistics for CMS") \
2903 \
2904 product(bool, PrintCMSInitiationStatistics, false, \
2905 "Statistics for initiating a CMS collection") \
2906 \
2907 product(intx, PrintFLSStatistics, 0, \
2908 "Statistics for CMS' FreeListSpace") \
2909 \
2910 product(intx, PrintFLSCensus, 0, \
2911 "Census for CMS' FreeListSpace") \
2912 \
2913 develop(uintx, GCExpandToAllocateDelayMillis, 0, \
2914 "Delay in ms between expansion and allocation") \
2915 \
2916 product(intx, DeferThrSuspendLoopCount, 4000, \
2917 "(Unstable) Number of times to iterate in safepoint loop " \
2918 " before blocking VM threads ") \
2919 \
2920 product(intx, DeferPollingPageLoopCount, -1, \
2921 "(Unsafe,Unstable) Number of iterations in safepoint loop " \
2922 "before changing safepoint polling page to RO ") \
2923 \
2924 product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \
2925 \
2926 product(bool, UseDepthFirstScavengeOrder, true, \
2927 "true: the scavenge order will be depth-first, " \
2928 "false: the scavenge order will be breadth-first") \
2929 \
2930 product(bool, PSChunkLargeArrays, true, \
2931 "true: process large arrays in chunks") \
2932 \
2933 product(uintx, GCDrainStackTargetSize, 64, \
2934 "how many entries we'll try to leave on the stack during " \
2935 "parallel GC") \
2936 \
2937 /* stack parameters */ \
2938 product_pd(intx, StackYellowPages, \
2939 "Number of yellow zone (recoverable overflows) pages") \
2940 \
2941 product_pd(intx, StackRedPages, \
2942 "Number of red zone (unrecoverable overflows) pages") \
2943 \
2944 product_pd(intx, StackShadowPages, \
2945 "Number of shadow zone (for overflow checking) pages" \
2946 " this should exceed the depth of the VM and native call stack") \
2947 \
2948 product_pd(intx, ThreadStackSize, \
2949 "Thread Stack Size (in Kbytes)") \
2950 \
2951 product_pd(intx, VMThreadStackSize, \
2952 "Non-Java Thread Stack Size (in Kbytes)") \
2953 \
2954 product_pd(intx, CompilerThreadStackSize, \
2955 "Compiler Thread Stack Size (in Kbytes)") \
2956 \
2957 develop_pd(uintx, JVMInvokeMethodSlack, \
2958 "Stack space (bytes) required for JVM_InvokeMethod to complete") \
2959 \
2960 product(uintx, ThreadSafetyMargin, 50*M, \
2961 "Thread safety margin is used on fixed-stack LinuxThreads (on " \
2962 "Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \
2963 "disable this feature") \
2964 \
2965 /* code cache parameters */ \
2966 develop(uintx, CodeCacheSegmentSize, 64, \
2967 "Code cache segment size (in bytes) - smallest unit of " \
2968 "allocation") \
2969 \
2970 develop_pd(intx, CodeEntryAlignment, \
2971 "Code entry alignment for generated code (in bytes)") \
2972 \
2973 product_pd(uintx, InitialCodeCacheSize, \
2974 "Initial code cache size (in bytes)") \
2975 \
2976 product_pd(uintx, ReservedCodeCacheSize, \
2977 "Reserved code cache size (in bytes) - maximum code cache size") \
2978 \
2979 product(uintx, CodeCacheMinimumFreeSpace, 500*K, \
2980 "When less than X space left, we stop compiling.") \
2981 \
2982 product_pd(uintx, CodeCacheExpansionSize, \
2983 "Code cache expansion size (in bytes)") \
2984 \
2985 develop_pd(uintx, CodeCacheMinBlockLength, \
2986 "Minimum number of segments in a code cache block.") \
2987 \
2988 notproduct(bool, ExitOnFullCodeCache, false, \
2989 "Exit the VM if we fill the code cache.") \
2990 \
2991 /* interpreter debugging */ \
2992 develop(intx, BinarySwitchThreshold, 5, \
2993 "Minimal number of lookupswitch entries for rewriting to binary " \
2994 "switch") \
2995 \
2996 develop(intx, StopInterpreterAt, 0, \
2997 "Stops interpreter execution at specified bytecode number") \
2998 \
2999 develop(intx, TraceBytecodesAt, 0, \
3000 "Traces bytecodes starting with specified bytecode number") \
3001 \
3002 /* compiler interface */ \
3003 develop(intx, CIStart, 0, \
3004 "the id of the first compilation to permit") \
3005 \
3006 develop(intx, CIStop, -1, \
3007 "the id of the last compilation to permit") \
3008 \
3009 develop(intx, CIStartOSR, 0, \
3010 "the id of the first osr compilation to permit " \
3011 "(CICountOSR must be on)") \
3012 \
3013 develop(intx, CIStopOSR, -1, \
3014 "the id of the last osr compilation to permit " \
3015 "(CICountOSR must be on)") \
3016 \
3017 develop(intx, CIBreakAtOSR, -1, \
3018 "id of osr compilation to break at") \
3019 \
3020 develop(intx, CIBreakAt, -1, \
3021 "id of compilation to break at") \
3022 \
3023 product(ccstrlist, CompileOnly, "", \
3024 "List of methods (pkg/class.name) to restrict compilation to") \
3025 \
3026 product(ccstr, CompileCommandFile, NULL, \
3027 "Read compiler commands from this file [.hotspot_compiler]") \
3028 \
3029 product(ccstrlist, CompileCommand, "", \
3030 "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \
3031 \
3032 product(bool, CICompilerCountPerCPU, false, \
3033 "1 compiler thread for log(N CPUs)") \
3034 \
3035 develop(intx, CIFireOOMAt, -1, \
3036 "Fire OutOfMemoryErrors throughout CI for testing the compiler " \
3037 "(non-negative value throws OOM after this many CI accesses " \
3038 "in each compile)") \
3039 \
3040 develop(intx, CIFireOOMAtDelay, -1, \
3041 "Wait for this many CI accesses to occur in all compiles before " \
3042 "beginning to throw OutOfMemoryErrors in each compile") \
3043 \
3044 notproduct(bool, CIObjectFactoryVerify, false, \
3045 "enable potentially expensive verification in ciObjectFactory") \
3046 \
3047 /* Priorities */ \
3048 product_pd(bool, UseThreadPriorities, "Use native thread priorities") \
3049 \
3050 product(intx, ThreadPriorityPolicy, 0, \
3051 "0 : Normal. "\
3052 " VM chooses priorities that are appropriate for normal "\
3053 " applications. On Solaris NORM_PRIORITY and above are mapped "\
3054 " to normal native priority. Java priorities below NORM_PRIORITY"\
3055 " map to lower native priority values. On Windows applications"\
3056 " are allowed to use higher native priorities. However, with "\
3057 " ThreadPriorityPolicy=0, VM will not use the highest possible"\
3058 " native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\
3059 " interfere with system threads. On Linux thread priorities "\
3060 " are ignored because the OS does not support static priority "\
3061 " in SCHED_OTHER scheduling class which is the only choice for"\
3062 " non-root, non-realtime applications. "\
3063 "1 : Aggressive. "\
3064 " Java thread priorities map over to the entire range of "\
3065 " native thread priorities. Higher Java thread priorities map "\
3066 " to higher native thread priorities. This policy should be "\
3067 " used with care, as sometimes it can cause performance "\
3068 " degradation in the application and/or the entire system. On "\
3069 " Linux this policy requires root privilege.") \
3070 \
3071 product(bool, ThreadPriorityVerbose, false, \
3072 "print priority changes") \
3073 \
3074 product(intx, DefaultThreadPriority, -1, \
3075 "what native priority threads run at if not specified elsewhere (-1 means no change)") \
3076 \
3077 product(intx, CompilerThreadPriority, -1, \
3078 "what priority should compiler threads run at (-1 means no change)") \
3079 \
3080 product(intx, VMThreadPriority, -1, \
3081 "what priority should VM threads run at (-1 means no change)") \
3082 \
3083 product(bool, CompilerThreadHintNoPreempt, true, \
3084 "(Solaris only) Give compiler threads an extra quanta") \
3085 \
3086 product(bool, VMThreadHintNoPreempt, false, \
3087 "(Solaris only) Give VM thread an extra quanta") \
3088 \
3089 product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \
3090 product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \
3091 product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \
3092 product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \
3093 product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \
3094 product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \
3095 product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \
3096 product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \
3097 product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \
3098 product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \
3099 \
3100 /* compiler debugging */ \
3101 notproduct(intx, CompileTheWorldStartAt, 1, \
3102 "First class to consider when using +CompileTheWorld") \
3103 \
3104 notproduct(intx, CompileTheWorldStopAt, max_jint, \
3105 "Last class to consider when using +CompileTheWorld") \
3106 \
3107 develop(intx, NewCodeParameter, 0, \
3108 "Testing Only: Create a dedicated integer parameter before " \
3109 "putback") \
3110 \
3111 /* new oopmap storage allocation */ \
3112 develop(intx, MinOopMapAllocation, 8, \
3113 "Minimum number of OopMap entries in an OopMapSet") \
3114 \
3115 /* Background Compilation */ \
3116 develop(intx, LongCompileThreshold, 50, \
3117 "Used with +TraceLongCompiles") \
3118 \
3119 product(intx, StarvationMonitorInterval, 200, \
3120 "Pause between each check in ms") \
3121 \
3122 /* recompilation */ \
3123 product_pd(intx, CompileThreshold, \
3124 "number of interpreted method invocations before (re-)compiling") \
3125 \
3126 product_pd(intx, BackEdgeThreshold, \
3127 "Interpreter Back edge threshold at which an OSR compilation is invoked")\
3128 \
3129 product(intx, Tier1BytecodeLimit, 10, \
3130 "Must have at least this many bytecodes before tier1" \
3131 "invocation counters are used") \
3132 \
3133 product_pd(intx, Tier2CompileThreshold, \
3134 "threshold at which a tier 2 compilation is invoked") \
3135 \
3136 product_pd(intx, Tier2BackEdgeThreshold, \
3137 "Back edge threshold at which a tier 2 compilation is invoked") \
3138 \
3139 product_pd(intx, Tier3CompileThreshold, \
3140 "threshold at which a tier 3 compilation is invoked") \
3141 \
3142 product_pd(intx, Tier3BackEdgeThreshold, \
3143 "Back edge threshold at which a tier 3 compilation is invoked") \
3144 \
3145 product_pd(intx, Tier4CompileThreshold, \
3146 "threshold at which a tier 4 compilation is invoked") \
3147 \
3148 product_pd(intx, Tier4BackEdgeThreshold, \
3149 "Back edge threshold at which a tier 4 compilation is invoked") \
3150 \
3151 product_pd(bool, TieredCompilation, \
3152 "Enable two-tier compilation") \
3153 \
3154 product(bool, StressTieredRuntime, false, \
3155 "Alternate client and server compiler on compile requests") \
3156 \
3157 product_pd(intx, OnStackReplacePercentage, \
3158 "NON_TIERED number of method invocations/branches (expressed as %"\
3159 "of CompileThreshold) before (re-)compiling OSR code") \
3160 \
3161 product(intx, InterpreterProfilePercentage, 33, \
3162 "NON_TIERED number of method invocations/branches (expressed as %"\
3163 "of CompileThreshold) before profiling in the interpreter") \
3164 \
3165 develop(intx, MaxRecompilationSearchLength, 10, \
3166 "max. # frames to inspect searching for recompilee") \
3167 \
3168 develop(intx, MaxInterpretedSearchLength, 3, \
3169 "max. # interp. frames to skip when searching for recompilee") \
3170 \
3171 develop(intx, DesiredMethodLimit, 8000, \
3172 "desired max. method size (in bytecodes) after inlining") \
3173 \
3174 develop(intx, HugeMethodLimit, 8000, \
3175 "don't compile methods larger than this if " \
3176 "+DontCompileHugeMethods") \
3177 \
3178 /* New JDK 1.4 reflection implementation */ \
3179 \
3180 develop(bool, UseNewReflection, true, \
3181 "Temporary flag for transition to reflection based on dynamic " \
3182 "bytecode generation in 1.4; can no longer be turned off in 1.4 " \
3183 "JDK, and is unneeded in 1.3 JDK, but marks most places VM " \
3184 "changes were needed") \
3185 \
3186 develop(bool, VerifyReflectionBytecodes, false, \
3187 "Force verification of 1.4 reflection bytecodes. Does not work " \
3188 "in situations like that described in 4486457 or for " \
3189 "constructors generated for serialization, so can not be enabled "\
3190 "in product.") \
3191 \
3192 product(bool, ReflectionWrapResolutionErrors, true, \
3193 "Temporary flag for transition to AbstractMethodError wrapped " \
3194 "in InvocationTargetException. See 6531596") \
3195 \
3196 \
3197 develop(intx, FastSuperclassLimit, 8, \
3198 "Depth of hardwired instanceof accelerator array") \
3199 \
3200 /* Properties for Java libraries */ \
3201 \
3202 product(intx, MaxDirectMemorySize, -1, \
3203 "Maximum total size of NIO direct-buffer allocations") \
3204 \
3205 /* temporary developer defined flags */ \
3206 \
3207 diagnostic(bool, UseNewCode, false, \
3208 "Testing Only: Use the new version while testing") \
3209 \
3210 diagnostic(bool, UseNewCode2, false, \
3211 "Testing Only: Use the new version while testing") \
3212 \
3213 diagnostic(bool, UseNewCode3, false, \
3214 "Testing Only: Use the new version while testing") \
3215 \
3216 /* flags for performance data collection */ \
3217 \
3218 product(bool, UsePerfData, true, \
3219 "Flag to disable jvmstat instrumentation for performance testing" \
3220 "and problem isolation purposes.") \
3221 \
3222 product(bool, PerfDataSaveToFile, false, \
3223 "Save PerfData memory to hsperfdata_<pid> file on exit") \
3224 \
3225 product(ccstr, PerfDataSaveFile, NULL, \
3226 "Save PerfData memory to the specified absolute pathname," \
3227 "%p in the file name if present will be replaced by pid") \
3228 \
3229 product(intx, PerfDataSamplingInterval, 50 /*ms*/, \
3230 "Data sampling interval in milliseconds") \
3231 \
3232 develop(bool, PerfTraceDataCreation, false, \
3233 "Trace creation of Performance Data Entries") \
3234 \
3235 develop(bool, PerfTraceMemOps, false, \
3236 "Trace PerfMemory create/attach/detach calls") \
3237 \
3238 product(bool, PerfDisableSharedMem, false, \
3239 "Store performance data in standard memory") \
3240 \
3241 product(intx, PerfDataMemorySize, 32*K, \
3242 "Size of performance data memory region. Will be rounded " \
3243 "up to a multiple of the native os page size.") \
3244 \
3245 product(intx, PerfMaxStringConstLength, 1024, \
3246 "Maximum PerfStringConstant string length before truncation") \
3247 \
3248 product(bool, PerfAllowAtExitRegistration, false, \
3249 "Allow registration of atexit() methods") \
3250 \
3251 product(bool, PerfBypassFileSystemCheck, false, \
3252 "Bypass Win32 file system criteria checks (Windows Only)") \
3253 \
3254 product(intx, UnguardOnExecutionViolation, 0, \
3255 "Unguard page and retry on no-execute fault (Win32 only)" \
3256 "0=off, 1=conservative, 2=aggressive") \
3257 \
3258 /* Serviceability Support */ \
3259 \
3260 product(bool, ManagementServer, false, \
3261 "Create JMX Management Server") \
3262 \
3263 product(bool, DisableAttachMechanism, false, \
3264 "Disable mechanism that allows tools to attach to this VM") \
3265 \
3266 product(bool, StartAttachListener, false, \
3267 "Always start Attach Listener at VM startup") \
3268 \
3269 manageable(bool, PrintConcurrentLocks, false, \
3270 "Print java.util.concurrent locks in thread dump") \
3271 \
3272 /* Shared spaces */ \
3273 \
3274 product(bool, UseSharedSpaces, true, \
3275 "Use shared spaces in the permanent generation") \
3276 \
3277 product(bool, RequireSharedSpaces, false, \
3278 "Require shared spaces in the permanent generation") \
3279 \
3280 product(bool, ForceSharedSpaces, false, \
3281 "Require shared spaces in the permanent generation") \
3282 \
3283 product(bool, DumpSharedSpaces, false, \
3284 "Special mode: JVM reads a class list, loads classes, builds " \
3285 "shared spaces, and dumps the shared spaces to a file to be " \
3286 "used in future JVM runs.") \
3287 \
3288 product(bool, PrintSharedSpaces, false, \
3289 "Print usage of shared spaces") \
3290 \
3291 product(uintx, SharedDummyBlockSize, 512*M, \
3292 "Size of dummy block used to shift heap addresses (in bytes)") \
3293 \
3294 product(uintx, SharedReadWriteSize, 12*M, \
3295 "Size of read-write space in permanent generation (in bytes)") \
3296 \
3297 product(uintx, SharedReadOnlySize, 10*M, \
3298 "Size of read-only space in permanent generation (in bytes)") \
3299 \
3300 product(uintx, SharedMiscDataSize, 4*M, \
3301 "Size of the shared data area adjacent to the heap (in bytes)") \
3302 \
3303 product(uintx, SharedMiscCodeSize, 4*M, \
3304 "Size of the shared code area adjacent to the heap (in bytes)") \
3305 \
3306 diagnostic(bool, SharedOptimizeColdStart, true, \
3307 "At dump time, order shared objects to achieve better " \
3308 "cold startup time.") \
3309 \
3310 develop(intx, SharedOptimizeColdStartPolicy, 2, \
3311 "Reordering policy for SharedOptimizeColdStart " \
3312 "0=favor classload-time locality, 1=balanced, " \
3313 "2=favor runtime locality") \
3314 \
3315 diagnostic(bool, SharedSkipVerify, false, \
3316 "Skip assert() and verify() which page-in unwanted shared " \
3317 "objects. ") \
3318 \
3319 product(bool, AnonymousClasses, false, \
3320 "support sun.misc.Unsafe.defineAnonymousClass") \
3321 \
3322 experimental(bool, EnableMethodHandles, false, \
3323 "support method handles (true by default under JSR 292)") \
3324 \
3325 diagnostic(intx, MethodHandlePushLimit, 3, \
3326 "number of additional stack slots a method handle may push") \
3327 \
3328 develop(bool, TraceMethodHandles, false, \
3329 "trace internal method handle operations") \
3330 \
3331 diagnostic(bool, VerifyMethodHandles, trueInDebug, \
3332 "perform extra checks when constructing method handles") \
3333 \
3334 diagnostic(bool, OptimizeMethodHandles, true, \
3335 "when constructing method handles, try to improve them") \
3336 \
3337 experimental(bool, EnableInvokeDynamic, false, \
3338 "recognize the invokedynamic instruction") \
3339 \
3340 develop(bool, TraceInvokeDynamic, false, \
3341 "trace internal invoke dynamic operations") \
3342 \
3343 product(bool, TaggedStackInterpreter, false, \
3344 "Insert tags in interpreter execution stack for oopmap generaion")\
3345 \
3346 diagnostic(bool, PauseAtStartup, false, \
3347 "Causes the VM to pause at startup time and wait for the pause " \
3348 "file to be removed (default: ./vm.paused.<pid>)") \
3349 \
3350 diagnostic(ccstr, PauseAtStartupFile, NULL, \
3351 "The file to create and for whose removal to await when pausing " \
3352 "at startup. (default: ./vm.paused.<pid>)") \
3353 \
3354 product(bool, ExtendedDTraceProbes, false, \
3355 "Enable performance-impacting dtrace probes") \
3356 \
3357 product(bool, DTraceMethodProbes, false, \
3358 "Enable dtrace probes for method-entry and method-exit") \
3359 \
3360 product(bool, DTraceAllocProbes, false, \
3361 "Enable dtrace probes for object allocation") \
3362 \
3363 product(bool, DTraceMonitorProbes, false, \
3364 "Enable dtrace probes for monitor events") \
3365 \
3366 product(bool, RelaxAccessControlCheck, false, \
3367 "Relax the access control checks in the verifier") \
3368 \
3369 diagnostic(bool, PrintDTraceDOF, false, \
3370 "Print the DTrace DOF passed to the system for JSDT probes") \
3371 \
3372 product(bool, UseVMInterruptibleIO, false, \
3373 "(Unstable, Solaris-specific) Thread interrupt before or with " \
3374 "EINTR for I/O operations results in OS_INTRPT. The default value"\
3375 " of this flag is true for JDK 6 and earliers")
3378 /*
3379 * Macros for factoring of globals
3380 */
3382 // Interface macros
3383 #define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name;
3384 #define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name;
3385 #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name;
3386 #define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name;
3387 #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name;
3388 #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name;
3389 #ifdef PRODUCT
3390 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) const type name = value;
3391 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) const type name = pd_##name;
3392 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc)
3393 #else
3394 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name;
3395 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name;
3396 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name;
3397 #endif
3398 // Special LP64 flags, product only needed for now.
3399 #ifdef _LP64
3400 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name;
3401 #else
3402 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value;
3403 #endif // _LP64
3405 // Implementation macros
3406 #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value;
3407 #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name;
3408 #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value;
3409 #define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value;
3410 #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value;
3411 #define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value;
3412 #ifdef PRODUCT
3413 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) /* flag name is constant */
3414 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) /* flag name is constant */
3415 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc)
3416 #else
3417 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value;
3418 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name;
3419 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value;
3420 #endif
3421 #ifdef _LP64
3422 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value;
3423 #else
3424 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */
3425 #endif // _LP64
3427 RUNTIME_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG, DECLARE_LP64_PRODUCT_FLAG)
3429 RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG)
