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src/hotspot/share/runtime/globals.hpp
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*** 25,62 ****
#ifndef SHARE_RUNTIME_GLOBALS_HPP
#define SHARE_RUNTIME_GLOBALS_HPP
#include "compiler/compiler_globals.hpp"
#include "gc/shared/gc_globals.hpp"
#include "runtime/globals_shared.hpp"
#include "utilities/align.hpp"
#include "utilities/globalDefinitions.hpp"
#include "utilities/macros.hpp"
#include CPU_HEADER(globals)
#include OS_HEADER(globals)
#include OS_CPU_HEADER(globals)
! // develop flags are settable / visible only during development and are constant in the PRODUCT version
! // product flags are always settable / visible
! // notproduct flags are settable / visible only during development and are not declared in the PRODUCT version
!
! // A flag must be declared with one of the following types:
! // bool, int, uint, intx, uintx, size_t, ccstr, ccstrlist, double, or uint64_t.
! // The type "ccstr" and "ccstrlist" are an alias for "const char*" and is used
! // only in this file, because the macrology requires single-token type names.
!
! // Note: Diagnostic options not meant for VM tuning or for product modes.
// They are to be used for VM quality assurance or field diagnosis
// of VM bugs. They are hidden so that users will not be encouraged to
// try them as if they were VM ordinary execution options. However, they
// are available in the product version of the VM. Under instruction
// from support engineers, VM customers can turn them on to collect
// diagnostic information about VM problems. To use a VM diagnostic
// option, you must first specify +UnlockDiagnosticVMOptions.
// (This master switch also affects the behavior of -Xprintflags.)
//
! // experimental flags are in support of features that are not
// part of the officially supported product, but are available
// for experimenting with. They could, for example, be performance
// features that may not have undergone full or rigorous QA, but which may
// help performance in some cases and released for experimentation
// by the community of users and developers. This flag also allows one to
--- 25,129 ----
#ifndef SHARE_RUNTIME_GLOBALS_HPP
#define SHARE_RUNTIME_GLOBALS_HPP
#include "compiler/compiler_globals.hpp"
#include "gc/shared/gc_globals.hpp"
+ #include "runtime/flags/jvmFlagConstraintsCompiler.hpp"
+ #include "runtime/flags/jvmFlagConstraintsRuntime.hpp"
#include "runtime/globals_shared.hpp"
#include "utilities/align.hpp"
#include "utilities/globalDefinitions.hpp"
#include "utilities/macros.hpp"
#include CPU_HEADER(globals)
#include OS_HEADER(globals)
#include OS_CPU_HEADER(globals)
! // Command-line flag specification in HotSpot is divided into individual modules.
! // Each module should have 2 files in the module's directory. For example, C2 has the
! // following 2 files:
! //
! // c2_globals.hpp - specification of all flags for C2, including meta-information
! // such as docs, range and constraints.
! // c2_globals.cpp - definitions of the C++ variables that implements these flags.
! //
! //
! // In the xxx_globals.hpp file, each flag must be specified with one of the
! // following 5 macros.
! //
! // Platform-Independent Flags -- each flag has 5 arguments: (type, name, default_value, attr, docs)
! //
! // PRODUCT_FLAG -- always settable
! // DEVELOP_FLAG -- settable only during development and are constant in the PRODUCT version
! // NOTPROD_FLAG -- settable only during development and are *not* declared in the PRODUCT version
! //
! // Platform-Dependent Flags -- each flag has 4 arguments: (type, name, attr, docs)
! //
! // PRODUCT_FLAG_PD
! // DEVELOP_FLAG_PD
! //
! // type: A flag must be declared with one of the following types:
! // bool, int, uint, intx, uintx, size_t, ccstr, ccstr, double, or uint64_t.
! //
! // The type "ccstr" is an alias for "const char*" because the macrology
! // requires single-token type names. For this type, you can optionally
! // set the JVMFlag::STRINGLIST bit in the <attr> argument. This allows you
! // to specify the flag multiple times on the command-line to build
! // a string list. These flags are printed as "ccstrlist" by -XX:PrintFlagsFinal.
! //
! // name: The name of the flag.
! //
! // default_value: The default value of the flag.
! // Note that the default values for the _PD flags are declared in
! // platform-dependent header files such as cpu/x86/c2_globals_x86.hpp
! //
! // attr: See discussion below on flag attributes
! //
! // docs: Description of the flag. This is mostly for the benefits of HotSpot
! // developers, and is excluded from PRODUCT builds.
! //
! //
! // Optionally, a flag can be given a range and/or constraint by using the following
! // macros:
! //
! // FLAG_RANGE(name, min, max)
! // FLAG_CONSTRAINT(name, func, phase)
! //
! // When a range is specified, the flag's attr must include JVMFlag::RANGE.
! // When a constraint is specified, the flag's attr must include JVMFlag::CONSTRAINT.
! //
! // For example:
! //
! // PRODUCT_FLAG(size_t, LargePageSizeInBytes, 0, JVMFlag::RANGE,
! // "Large page size (0 to let VM choose the page size)");
! // FLAG_RANGE( LargePageSizeInBytes, 0, max_uintx);
! //
! // PRODUCT_FLAG_PD(size_t,MetaspaceSize, JVMFlag::CONSTRAINT,
! // "Initial threshold (in bytes) at which a garbage collection "
! // "is done to reduce Metaspace usage");
! // FLAG_CONSTRAINT( MetaspaceSize, (void*)MetaspaceSizeConstraintFunc, JVMFlag::AfterErgo);
! //
! //
! // Command-line Flag Attributes
! //
! // The <attr> argument for each flag may be any combination of the following
! // bits.
! //
! // JVMFlag::MANAGEABLE
! // JVMFlag::DIAGNOSTIC
! // JVMFlag::EXPERIMENTAL
! //
! // DIAGNOSTIC options are not meant for VM tuning or for product modes.
// They are to be used for VM quality assurance or field diagnosis
// of VM bugs. They are hidden so that users will not be encouraged to
// try them as if they were VM ordinary execution options. However, they
// are available in the product version of the VM. Under instruction
// from support engineers, VM customers can turn them on to collect
// diagnostic information about VM problems. To use a VM diagnostic
// option, you must first specify +UnlockDiagnosticVMOptions.
// (This master switch also affects the behavior of -Xprintflags.)
//
! // EXPERIMENTAL flags are in support of features that are not
// part of the officially supported product, but are available
// for experimenting with. They could, for example, be performance
// features that may not have undergone full or rigorous QA, but which may
// help performance in some cases and released for experimentation
// by the community of users and developers. This flag also allows one to
*** 68,78 ****
//
// Nota bene: neither diagnostic nor experimental options should be used casually,
// and they are not supported on production loads, except under explicit
// direction from support engineers.
//
! // manageable flags are writeable external product flags.
// They are dynamically writeable through the JDK management interface
// (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole.
// These flags are external exported interface (see CCC). The list of
// manageable flags can be queried programmatically through the management
// interface.
--- 135,145 ----
//
// Nota bene: neither diagnostic nor experimental options should be used casually,
// and they are not supported on production loads, except under explicit
// direction from support engineers.
//
! // MANAGEABLE flags are writeable external product flags.
// They are dynamically writeable through the JDK management interface
// (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole.
// These flags are external exported interface (see CCC). The list of
// manageable flags can be queried programmatically through the management
// interface.
*** 81,2532 ****
// - the flag is defined in a CCC as an external exported interface.
// - the VM implementation supports dynamic setting of the flag.
// This implies that the VM must *always* query the flag variable
// and not reuse state related to the flag state at any given time.
// - you want the flag to be queried programmatically by the customers.
//
! // product_rw flags are writeable internal product flags.
! // They are like "manageable" flags but for internal/private use.
! // The list of product_rw flags are internal/private flags which
! // may be changed/removed in a future release. It can be set
! // through the management interface to get/set value
! // when the name of flag is supplied.
! //
! // A flag can be made as "product_rw" only if
! // - the VM implementation supports dynamic setting of the flag.
! // This implies that the VM must *always* query the flag variable
! // and not reuse state related to the flag state at any given time.
! //
! // Note that when there is a need to support develop flags to be writeable,
! // it can be done in the same way as product_rw.
//
! // range is a macro that will expand to min and max arguments for range
! // checking code if provided - see jvmFlagRangeList.hpp
//
! // constraint is a macro that will expand to custom function call
! // for constraint checking if provided - see jvmFlagConstraintList.hpp
// Default and minimum StringTable and SymbolTable size values
// Must be powers of 2
const size_t defaultStringTableSize = NOT_LP64(1024) LP64_ONLY(65536);
const size_t minimumStringTableSize = 128;
const size_t defaultSymbolTableSize = 32768; // 2^15
const size_t minimumSymbolTableSize = 1024;
! #define RUNTIME_FLAGS(develop, \
! develop_pd, \
! product, \
! product_pd, \
! diagnostic, \
! diagnostic_pd, \
! experimental, \
! notproduct, \
! manageable, \
! product_rw, \
! lp64_product, \
! range, \
! constraint) \
! \
! lp64_product(bool, UseCompressedOops, false, \
! "Use 32-bit object references in 64-bit VM. " \
! "lp64_product means flag is always constant in 32 bit VM") \
! \
! lp64_product(bool, UseCompressedClassPointers, false, \
! "Use 32-bit class pointers in 64-bit VM. " \
! "lp64_product means flag is always constant in 32 bit VM") \
! \
! notproduct(bool, CheckCompressedOops, true, \
! "Generate checks in encoding/decoding code in debug VM") \
! \
! product(uintx, HeapSearchSteps, 3 PPC64_ONLY(+17), \
! "Heap allocation steps through preferred address regions to find" \
! " where it can allocate the heap. Number of steps to take per " \
! "region.") \
! range(1, max_uintx) \
! \
! lp64_product(intx, ObjectAlignmentInBytes, 8, \
! "Default object alignment in bytes, 8 is minimum") \
! range(8, 256) \
! constraint(ObjectAlignmentInBytesConstraintFunc,AtParse) \
! \
! develop(bool, CleanChunkPoolAsync, true, \
! "Clean the chunk pool asynchronously") \
! \
! diagnostic(uint, HandshakeTimeout, 0, \
! "If nonzero set a timeout in milliseconds for handshakes") \
! \
! experimental(bool, AlwaysSafeConstructors, false, \
! "Force safe construction, as if all fields are final.") \
! \
! diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \
! "Enable normal processing of flags relating to field diagnostics")\
! \
! experimental(bool, UnlockExperimentalVMOptions, false, \
! "Enable normal processing of flags relating to experimental " \
! "features") \
! \
! product(bool, JavaMonitorsInStackTrace, true, \
! "Print information about Java monitor locks when the stacks are" \
! "dumped") \
! \
! product_pd(bool, UseLargePages, \
! "Use large page memory") \
! \
! product_pd(bool, UseLargePagesIndividualAllocation, \
! "Allocate large pages individually for better affinity") \
! \
! develop(bool, LargePagesIndividualAllocationInjectError, false, \
! "Fail large pages individual allocation") \
! \
! product(bool, UseLargePagesInMetaspace, false, \
! "Use large page memory in metaspace. " \
! "Only used if UseLargePages is enabled.") \
! \
! product(bool, UseNUMA, false, \
! "Use NUMA if available") \
! \
! product(bool, UseNUMAInterleaving, false, \
! "Interleave memory across NUMA nodes if available") \
! \
! product(size_t, NUMAInterleaveGranularity, 2*M, \
! "Granularity to use for NUMA interleaving on Windows OS") \
! range(os::vm_allocation_granularity(), NOT_LP64(2*G) LP64_ONLY(8192*G)) \
! \
! product(bool, ForceNUMA, false, \
! "Force NUMA optimizations on single-node/UMA systems") \
! \
! product(uintx, NUMAChunkResizeWeight, 20, \
! "Percentage (0-100) used to weight the current sample when " \
! "computing exponentially decaying average for " \
! "AdaptiveNUMAChunkSizing") \
! range(0, 100) \
! \
! product(size_t, NUMASpaceResizeRate, 1*G, \
! "Do not reallocate more than this amount per collection") \
! range(0, max_uintx) \
! \
! product(bool, UseAdaptiveNUMAChunkSizing, true, \
! "Enable adaptive chunk sizing for NUMA") \
! \
! product(bool, NUMAStats, false, \
! "Print NUMA stats in detailed heap information") \
! \
! product(uintx, NUMAPageScanRate, 256, \
! "Maximum number of pages to include in the page scan procedure") \
! range(0, max_uintx) \
! \
! product(bool, UseAES, false, \
! "Control whether AES instructions are used when available") \
! \
! product(bool, UseFMA, false, \
! "Control whether FMA instructions are used when available") \
! \
! product(bool, UseSHA, false, \
! "Control whether SHA instructions are used when available") \
! \
! diagnostic(bool, UseGHASHIntrinsics, false, \
! "Use intrinsics for GHASH versions of crypto") \
! \
! product(bool, UseBASE64Intrinsics, false, \
! "Use intrinsics for java.util.Base64") \
! \
! product(size_t, LargePageSizeInBytes, 0, \
! "Large page size (0 to let VM choose the page size)") \
! range(0, max_uintx) \
! \
! product(size_t, LargePageHeapSizeThreshold, 128*M, \
! "Use large pages if maximum heap is at least this big") \
! range(0, max_uintx) \
! \
! product(bool, ForceTimeHighResolution, false, \
! "Using high time resolution (for Win32 only)") \
! \
! develop(bool, TracePcPatching, false, \
! "Trace usage of frame::patch_pc") \
! \
! develop(bool, TraceRelocator, false, \
! "Trace the bytecode relocator") \
! \
! develop(bool, TraceLongCompiles, false, \
! "Print out every time compilation is longer than " \
! "a given threshold") \
! \
! diagnostic(bool, SafepointALot, false, \
! "Generate a lot of safepoints. This works with " \
! "GuaranteedSafepointInterval") \
! \
! diagnostic(bool, HandshakeALot, false, \
! "Generate a lot of handshakes. This works with " \
! "GuaranteedSafepointInterval") \
! \
! product_pd(bool, BackgroundCompilation, \
! "A thread requesting compilation is not blocked during " \
! "compilation") \
! \
! product(bool, PrintVMQWaitTime, false, \
! "(Deprecated) Print out the waiting time in VM operation queue") \
! \
! product(bool, MethodFlushing, true, \
! "Reclamation of zombie and not-entrant methods") \
! \
! develop(bool, VerifyStack, false, \
! "Verify stack of each thread when it is entering a runtime call") \
! \
! diagnostic(bool, ForceUnreachable, false, \
! "Make all non code cache addresses to be unreachable by " \
! "forcing use of 64bit literal fixups") \
! \
! notproduct(bool, StressDerivedPointers, false, \
! "Force scavenge when a derived pointer is detected on stack " \
! "after rtm call") \
! \
! develop(bool, TraceDerivedPointers, false, \
! "Trace traversal of derived pointers on stack") \
! \
! notproduct(bool, TraceCodeBlobStacks, false, \
! "Trace stack-walk of codeblobs") \
! \
! notproduct(bool, PrintRewrites, false, \
! "Print methods that are being rewritten") \
! \
! product(bool, UseInlineCaches, true, \
! "Use Inline Caches for virtual calls ") \
! \
! diagnostic(bool, InlineArrayCopy, true, \
! "Inline arraycopy native that is known to be part of " \
! "base library DLL") \
! \
! diagnostic(bool, InlineObjectHash, true, \
! "Inline Object::hashCode() native that is known to be part " \
! "of base library DLL") \
! \
! diagnostic(bool, InlineNatives, true, \
! "Inline natives that are known to be part of base library DLL") \
! \
! diagnostic(bool, InlineMathNatives, true, \
! "Inline SinD, CosD, etc.") \
! \
! diagnostic(bool, InlineClassNatives, true, \
! "Inline Class.isInstance, etc") \
! \
! diagnostic(bool, InlineThreadNatives, true, \
! "Inline Thread.currentThread, etc") \
! \
! diagnostic(bool, InlineUnsafeOps, true, \
! "Inline memory ops (native methods) from Unsafe") \
! \
! product(bool, CriticalJNINatives, true, \
! "Check for critical JNI entry points") \
! \
! notproduct(bool, StressCriticalJNINatives, false, \
! "Exercise register saving code in critical natives") \
! \
! diagnostic(bool, UseAESIntrinsics, false, \
! "Use intrinsics for AES versions of crypto") \
! \
! diagnostic(bool, UseAESCTRIntrinsics, false, \
! "Use intrinsics for the paralleled version of AES/CTR crypto") \
! \
! diagnostic(bool, UseSHA1Intrinsics, false, \
! "Use intrinsics for SHA-1 crypto hash function. " \
! "Requires that UseSHA is enabled.") \
! \
! diagnostic(bool, UseSHA256Intrinsics, false, \
! "Use intrinsics for SHA-224 and SHA-256 crypto hash functions. " \
! "Requires that UseSHA is enabled.") \
! \
! diagnostic(bool, UseSHA512Intrinsics, false, \
! "Use intrinsics for SHA-384 and SHA-512 crypto hash functions. " \
! "Requires that UseSHA is enabled.") \
! \
! diagnostic(bool, UseCRC32Intrinsics, false, \
! "use intrinsics for java.util.zip.CRC32") \
! \
! diagnostic(bool, UseCRC32CIntrinsics, false, \
! "use intrinsics for java.util.zip.CRC32C") \
! \
! diagnostic(bool, UseAdler32Intrinsics, false, \
! "use intrinsics for java.util.zip.Adler32") \
! \
! diagnostic(bool, UseVectorizedMismatchIntrinsic, false, \
! "Enables intrinsification of ArraysSupport.vectorizedMismatch()") \
! \
! diagnostic(ccstrlist, DisableIntrinsic, "", \
! "do not expand intrinsics whose (internal) names appear here") \
! \
! develop(bool, TraceCallFixup, false, \
! "Trace all call fixups") \
! \
! develop(bool, DeoptimizeALot, false, \
! "Deoptimize at every exit from the runtime system") \
! \
! notproduct(ccstrlist, DeoptimizeOnlyAt, "", \
! "A comma separated list of bcis to deoptimize at") \
! \
! develop(bool, DeoptimizeRandom, false, \
! "Deoptimize random frames on random exit from the runtime system")\
! \
! notproduct(bool, ZombieALot, false, \
! "Create zombies (non-entrant) at exit from the runtime system") \
! \
! notproduct(bool, WalkStackALot, false, \
! "Trace stack (no print) at every exit from the runtime system") \
! \
! product(bool, Debugging, false, \
! "Set when executing debug methods in debug.cpp " \
! "(to prevent triggering assertions)") \
! \
! notproduct(bool, VerifyLastFrame, false, \
! "Verify oops on last frame on entry to VM") \
! \
! product(bool, SafepointTimeout, false, \
! "Time out and warn or fail after SafepointTimeoutDelay " \
! "milliseconds if failed to reach safepoint") \
! \
! diagnostic(bool, AbortVMOnSafepointTimeout, false, \
! "Abort upon failure to reach safepoint (see SafepointTimeout)") \
! \
! diagnostic(bool, AbortVMOnVMOperationTimeout, false, \
! "Abort upon failure to complete VM operation promptly") \
! \
! diagnostic(intx, AbortVMOnVMOperationTimeoutDelay, 1000, \
! "Delay in milliseconds for option AbortVMOnVMOperationTimeout") \
! range(0, max_intx) \
! \
! /* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \
! /* typically, at most a few retries are needed */ \
! product(intx, SuspendRetryCount, 50, \
! "Maximum retry count for an external suspend request") \
! range(0, max_intx) \
! \
! product(intx, SuspendRetryDelay, 5, \
! "Milliseconds to delay per retry (* current_retry_count)") \
! range(0, max_intx) \
! \
! product(bool, AssertOnSuspendWaitFailure, false, \
! "Assert/Guarantee on external suspend wait failure") \
! \
! product(bool, TraceSuspendWaitFailures, false, \
! "Trace external suspend wait failures") \
! \
! product(bool, MaxFDLimit, true, \
! "Bump the number of file descriptors to maximum in Solaris") \
! \
! diagnostic(bool, LogEvents, true, \
! "Enable the various ring buffer event logs") \
! \
! diagnostic(uintx, LogEventsBufferEntries, 20, \
! "Number of ring buffer event logs") \
! range(1, NOT_LP64(1*K) LP64_ONLY(1*M)) \
! \
! diagnostic(bool, BytecodeVerificationRemote, true, \
! "Enable the Java bytecode verifier for remote classes") \
! \
! diagnostic(bool, BytecodeVerificationLocal, false, \
! "Enable the Java bytecode verifier for local classes") \
! \
! develop(bool, ForceFloatExceptions, trueInDebug, \
! "Force exceptions on FP stack under/overflow") \
! \
! develop(bool, VerifyStackAtCalls, false, \
! "Verify that the stack pointer is unchanged after calls") \
! \
! develop(bool, TraceJavaAssertions, false, \
! "Trace java language assertions") \
! \
! notproduct(bool, VerifyCodeCache, false, \
! "Verify code cache on memory allocation/deallocation") \
! \
! develop(bool, UseMallocOnly, false, \
! "Use only malloc/free for allocation (no resource area/arena)") \
! \
! develop(bool, ZapResourceArea, trueInDebug, \
! "Zap freed resource/arena space with 0xABABABAB") \
! \
! notproduct(bool, ZapVMHandleArea, trueInDebug, \
! "Zap freed VM handle space with 0xBCBCBCBC") \
! \
! notproduct(bool, ZapStackSegments, trueInDebug, \
! "Zap allocated/freed stack segments with 0xFADFADED") \
! \
! develop(bool, ZapUnusedHeapArea, trueInDebug, \
! "Zap unused heap space with 0xBAADBABE") \
! \
! develop(bool, CheckZapUnusedHeapArea, false, \
! "Check zapping of unused heap space") \
! \
! develop(bool, ZapFillerObjects, trueInDebug, \
! "Zap filler objects with 0xDEAFBABE") \
! \
! develop(bool, PrintVMMessages, true, \
! "Print VM messages on console") \
! \
! notproduct(uintx, ErrorHandlerTest, 0, \
! "If > 0, provokes an error after VM initialization; the value " \
! "determines which error to provoke. See test_error_handler() " \
! "in vmError.cpp.") \
! \
! notproduct(uintx, TestCrashInErrorHandler, 0, \
! "If > 0, provokes an error inside VM error handler (a secondary " \
! "crash). see test_error_handler() in vmError.cpp") \
! \
! notproduct(bool, TestSafeFetchInErrorHandler, false, \
! "If true, tests SafeFetch inside error handler.") \
! \
! notproduct(bool, TestUnresponsiveErrorHandler, false, \
! "If true, simulates an unresponsive error handler.") \
! \
! develop(bool, Verbose, false, \
! "Print additional debugging information from other modes") \
! \
! develop(bool, PrintMiscellaneous, false, \
! "Print uncategorized debugging information (requires +Verbose)") \
! \
! develop(bool, WizardMode, false, \
! "Print much more debugging information") \
! \
! product(bool, ShowMessageBoxOnError, false, \
! "Keep process alive on VM fatal error") \
! \
! product(bool, CreateCoredumpOnCrash, true, \
! "Create core/mini dump on VM fatal error") \
! \
! product(uint64_t, ErrorLogTimeout, 2 * 60, \
! "Timeout, in seconds, to limit the time spent on writing an " \
! "error log in case of a crash.") \
! range(0, (uint64_t)max_jlong/1000) \
! \
! product_pd(bool, UseOSErrorReporting, \
! "Let VM fatal error propagate to the OS (ie. WER on Windows)") \
! \
! product(bool, SuppressFatalErrorMessage, false, \
! "Report NO fatal error message (avoid deadlock)") \
! \
! product(ccstrlist, OnError, "", \
! "Run user-defined commands on fatal error; see VMError.cpp " \
! "for examples") \
! \
! product(ccstrlist, OnOutOfMemoryError, "", \
! "Run user-defined commands on first java.lang.OutOfMemoryError") \
! \
! manageable(bool, HeapDumpBeforeFullGC, false, \
! "Dump heap to file before any major stop-the-world GC") \
! \
! manageable(bool, HeapDumpAfterFullGC, false, \
! "Dump heap to file after any major stop-the-world GC") \
! \
! manageable(bool, HeapDumpOnOutOfMemoryError, false, \
! "Dump heap to file when java.lang.OutOfMemoryError is thrown") \
! \
! manageable(ccstr, HeapDumpPath, NULL, \
! "When HeapDumpOnOutOfMemoryError is on, the path (filename or " \
! "directory) of the dump file (defaults to java_pid<pid>.hprof " \
! "in the working directory)") \
! \
! develop(bool, BreakAtWarning, false, \
! "Execute breakpoint upon encountering VM warning") \
! \
! product(ccstr, NativeMemoryTracking, "off", \
! "Native memory tracking options") \
! \
! diagnostic(bool, PrintNMTStatistics, false, \
! "Print native memory tracking summary data if it is on") \
! \
! diagnostic(bool, LogCompilation, false, \
! "Log compilation activity in detail to LogFile") \
! \
! product(bool, PrintCompilation, false, \
! "Print compilations") \
! \
! product(bool, PrintExtendedThreadInfo, false, \
! "Print more information in thread dump") \
! \
! diagnostic(intx, ScavengeRootsInCode, 2, \
! "0: do not allow scavengable oops in the code cache; " \
! "1: allow scavenging from the code cache; " \
! "2: emit as many constants as the compiler can see") \
! range(0, 2) \
! \
! product(bool, AlwaysRestoreFPU, false, \
! "Restore the FPU control word after every JNI call (expensive)") \
! \
! diagnostic(bool, PrintCompilation2, false, \
! "Print additional statistics per compilation") \
! \
! diagnostic(bool, PrintAdapterHandlers, false, \
! "Print code generated for i2c/c2i adapters") \
! \
! diagnostic(bool, VerifyAdapterCalls, trueInDebug, \
! "Verify that i2c/c2i adapters are called properly") \
! \
! develop(bool, VerifyAdapterSharing, false, \
! "Verify that the code for shared adapters is the equivalent") \
! \
! diagnostic(bool, PrintAssembly, false, \
! "Print assembly code (using external disassembler.so)") \
! \
! diagnostic(ccstr, PrintAssemblyOptions, NULL, \
! "Print options string passed to disassembler.so") \
! \
! notproduct(bool, PrintNMethodStatistics, false, \
! "Print a summary statistic for the generated nmethods") \
! \
! diagnostic(bool, PrintNMethods, false, \
! "Print assembly code for nmethods when generated") \
! \
! diagnostic(bool, PrintNativeNMethods, false, \
! "Print assembly code for native nmethods when generated") \
! \
! develop(bool, PrintDebugInfo, false, \
! "Print debug information for all nmethods when generated") \
! \
! develop(bool, PrintRelocations, false, \
! "Print relocation information for all nmethods when generated") \
! \
! develop(bool, PrintDependencies, false, \
! "Print dependency information for all nmethods when generated") \
! \
! develop(bool, PrintExceptionHandlers, false, \
! "Print exception handler tables for all nmethods when generated") \
! \
! develop(bool, StressCompiledExceptionHandlers, false, \
! "Exercise compiled exception handlers") \
! \
! develop(bool, InterceptOSException, false, \
! "Start debugger when an implicit OS (e.g. NULL) " \
! "exception happens") \
! \
! product(bool, PrintCodeCache, false, \
! "Print the code cache memory usage when exiting") \
! \
! develop(bool, PrintCodeCache2, false, \
! "Print detailed usage information on the code cache when exiting")\
! \
! product(bool, PrintCodeCacheOnCompilation, false, \
! "Print the code cache memory usage each time a method is " \
! "compiled") \
! \
! diagnostic(bool, PrintCodeHeapAnalytics, false, \
! "Print code heap usage statistics on exit and on full condition") \
! \
! diagnostic(bool, PrintStubCode, false, \
! "Print generated stub code") \
! \
! product(bool, StackTraceInThrowable, true, \
! "Collect backtrace in throwable when exception happens") \
! \
! product(bool, OmitStackTraceInFastThrow, true, \
! "Omit backtraces for some 'hot' exceptions in optimized code") \
! \
! manageable(bool, ShowCodeDetailsInExceptionMessages, false, \
! "Show exception messages from RuntimeExceptions that contain " \
! "snippets of the failing code. Disable this to improve privacy.") \
! \
! product(bool, PrintWarnings, true, \
! "Print JVM warnings to output stream") \
! \
! notproduct(uintx, WarnOnStalledSpinLock, 0, \
! "Print warnings for stalled SpinLocks") \
! \
! product(bool, RegisterFinalizersAtInit, true, \
! "Register finalizable objects at end of Object.<init> or " \
! "after allocation") \
! \
! develop(bool, RegisterReferences, true, \
! "Tell whether the VM should register soft/weak/final/phantom " \
! "references") \
! \
! develop(bool, IgnoreRewrites, false, \
! "Suppress rewrites of bytecodes in the oopmap generator. " \
! "This is unsafe!") \
! \
! develop(bool, PrintCodeCacheExtension, false, \
! "Print extension of code cache") \
! \
! develop(bool, UsePrivilegedStack, true, \
! "Enable the security JVM functions") \
! \
! develop(bool, ProtectionDomainVerification, true, \
! "Verify protection domain before resolution in system dictionary")\
! \
! product(bool, ClassUnloading, true, \
! "Do unloading of classes") \
! \
! product(bool, ClassUnloadingWithConcurrentMark, true, \
! "Do unloading of classes with a concurrent marking cycle") \
! \
! develop(bool, DisableStartThread, false, \
! "Disable starting of additional Java threads " \
! "(for debugging only)") \
! \
! develop(bool, MemProfiling, false, \
! "Write memory usage profiling to log file") \
! \
! notproduct(bool, PrintSystemDictionaryAtExit, false, \
! "Print the system dictionary at exit") \
! \
! diagnostic(bool, DynamicallyResizeSystemDictionaries, true, \
! "Dynamically resize system dictionaries as needed") \
! \
! product(bool, AlwaysLockClassLoader, false, \
! "Require the VM to acquire the class loader lock before calling " \
! "loadClass() even for class loaders registering " \
! "as parallel capable") \
! \
! product(bool, AllowParallelDefineClass, false, \
! "Allow parallel defineClass requests for class loaders " \
! "registering as parallel capable") \
! \
! product_pd(bool, DontYieldALot, \
! "Throw away obvious excess yield calls") \
! \
! develop(bool, UseDetachedThreads, true, \
! "Use detached threads that are recycled upon termination " \
! "(for Solaris only)") \
! \
! experimental(bool, DisablePrimordialThreadGuardPages, false, \
! "Disable the use of stack guard pages if the JVM is loaded " \
! "on the primordial process thread") \
! \
! product(bool, UseLWPSynchronization, true, \
! "Use LWP-based instead of libthread-based synchronization " \
! "(SPARC only)") \
! \
! product(intx, MonitorBound, 0, "(Deprecated) Bound Monitor population") \
! range(0, max_jint) \
! \
! experimental(intx, MonitorUsedDeflationThreshold, 90, \
! "Percentage of used monitors before triggering cleanup " \
! "safepoint which deflates monitors (0 is off). " \
! "The check is performed on GuaranteedSafepointInterval.") \
! range(0, 100) \
! \
! experimental(intx, hashCode, 5, \
! "(Unstable) select hashCode generation algorithm") \
! \
! product(bool, FilterSpuriousWakeups, true, \
! "When true prevents OS-level spurious, or premature, wakeups " \
! "from Object.wait (Ignored for Windows)") \
! \
! develop(bool, UsePthreads, false, \
! "Use pthread-based instead of libthread-based synchronization " \
! "(SPARC only)") \
! \
! product(bool, ReduceSignalUsage, false, \
! "Reduce the use of OS signals in Java and/or the VM") \
! \
! develop(bool, LoadLineNumberTables, true, \
! "Tell whether the class file parser loads line number tables") \
! \
! develop(bool, LoadLocalVariableTables, true, \
! "Tell whether the class file parser loads local variable tables") \
! \
! develop(bool, LoadLocalVariableTypeTables, true, \
! "Tell whether the class file parser loads local variable type" \
! "tables") \
! \
! product(bool, AllowUserSignalHandlers, false, \
! "Do not complain if the application installs signal handlers " \
! "(Solaris & Linux only)") \
! \
! product(bool, UseSignalChaining, true, \
! "Use signal-chaining to invoke signal handlers installed " \
! "by the application (Solaris & Linux only)") \
! \
! product(bool, RestoreMXCSROnJNICalls, false, \
! "Restore MXCSR when returning from JNI calls") \
! \
! product(bool, CheckJNICalls, false, \
! "Verify all arguments to JNI calls") \
! \
! product(bool, UseFastJNIAccessors, true, \
! "Use optimized versions of Get<Primitive>Field") \
! \
! product(intx, MaxJNILocalCapacity, 65536, \
! "Maximum allowable local JNI handle capacity to " \
! "EnsureLocalCapacity() and PushLocalFrame(), " \
! "where <= 0 is unlimited, default: 65536") \
! range(min_intx, max_intx) \
! \
! product(bool, EagerXrunInit, false, \
! "Eagerly initialize -Xrun libraries; allows startup profiling, " \
! "but not all -Xrun libraries may support the state of the VM " \
! "at this time") \
! \
! product(bool, PreserveAllAnnotations, false, \
! "Preserve RuntimeInvisibleAnnotations as well " \
! "as RuntimeVisibleAnnotations") \
! \
! develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \
! "Number of OutOfMemoryErrors preallocated with backtrace") \
! \
! product(bool, UseXMMForArrayCopy, false, \
! "Use SSE2 MOVQ instruction for Arraycopy") \
! \
! notproduct(bool, PrintFieldLayout, false, \
! "Print field layout for each class") \
! \
! /* Need to limit the extent of the padding to reasonable size. */\
! /* 8K is well beyond the reasonable HW cache line size, even with */\
! /* aggressive prefetching, while still leaving the room for segregating */\
! /* among the distinct pages. */\
! product(intx, ContendedPaddingWidth, 128, \
! "How many bytes to pad the fields/classes marked @Contended with")\
! range(0, 8192) \
! constraint(ContendedPaddingWidthConstraintFunc,AfterErgo) \
! \
! product(bool, EnableContended, true, \
! "Enable @Contended annotation support") \
! \
! product(bool, RestrictContended, true, \
! "Restrict @Contended to trusted classes") \
! \
! product(bool, UseBiasedLocking, true, \
! "Enable biased locking in JVM") \
! \
! product(intx, BiasedLockingStartupDelay, 0, \
! "Number of milliseconds to wait before enabling biased locking") \
! range(0, (intx)(max_jint-(max_jint%PeriodicTask::interval_gran))) \
! constraint(BiasedLockingStartupDelayFunc,AfterErgo) \
! \
! diagnostic(bool, PrintBiasedLockingStatistics, false, \
! "Print statistics of biased locking in JVM") \
! \
! product(intx, BiasedLockingBulkRebiasThreshold, 20, \
! "Threshold of number of revocations per type to try to " \
! "rebias all objects in the heap of that type") \
! range(0, max_intx) \
! constraint(BiasedLockingBulkRebiasThresholdFunc,AfterErgo) \
! \
! product(intx, BiasedLockingBulkRevokeThreshold, 40, \
! "Threshold of number of revocations per type to permanently " \
! "revoke biases of all objects in the heap of that type") \
! range(0, max_intx) \
! constraint(BiasedLockingBulkRevokeThresholdFunc,AfterErgo) \
! \
! product(intx, BiasedLockingDecayTime, 25000, \
! "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \
! "type after previous bulk rebias") \
! range(500, max_intx) \
! constraint(BiasedLockingDecayTimeFunc,AfterErgo) \
! \
! product(bool, ExitOnOutOfMemoryError, false, \
! "JVM exits on the first occurrence of an out-of-memory error") \
! \
! product(bool, CrashOnOutOfMemoryError, false, \
! "JVM aborts, producing an error log and core/mini dump, on the " \
! "first occurrence of an out-of-memory error") \
! \
! /* tracing */ \
! \
! develop(bool, StressRewriter, false, \
! "Stress linktime bytecode rewriting") \
! \
! product(ccstr, TraceJVMTI, NULL, \
! "Trace flags for JVMTI functions and events") \
! \
! /* This option can change an EMCP method into an obsolete method. */ \
! /* This can affect tests that except specific methods to be EMCP. */ \
! /* This option should be used with caution. */ \
! product(bool, StressLdcRewrite, false, \
! "Force ldc -> ldc_w rewrite during RedefineClasses") \
! \
! /* change to false by default sometime after Mustang */ \
! product(bool, VerifyMergedCPBytecodes, true, \
! "Verify bytecodes after RedefineClasses constant pool merging") \
! \
! product(bool, AllowRedefinitionToAddDeleteMethods, false, \
! "(Deprecated) Allow redefinition to add and delete private " \
! "static or final methods for compatibility with old releases") \
! \
! develop(bool, TraceBytecodes, false, \
! "Trace bytecode execution") \
! \
! develop(bool, TraceICs, false, \
! "Trace inline cache changes") \
! \
! notproduct(bool, TraceInvocationCounterOverflow, false, \
! "Trace method invocation counter overflow") \
! \
! develop(bool, TraceInlineCacheClearing, false, \
! "Trace clearing of inline caches in nmethods") \
! \
! develop(bool, TraceDependencies, false, \
! "Trace dependencies") \
! \
! develop(bool, VerifyDependencies, trueInDebug, \
! "Exercise and verify the compilation dependency mechanism") \
! \
! develop(bool, TraceNewOopMapGeneration, false, \
! "Trace OopMapGeneration") \
! \
! develop(bool, TraceNewOopMapGenerationDetailed, false, \
! "Trace OopMapGeneration: print detailed cell states") \
! \
! develop(bool, TimeOopMap, false, \
! "Time calls to GenerateOopMap::compute_map() in sum") \
! \
! develop(bool, TimeOopMap2, false, \
! "Time calls to GenerateOopMap::compute_map() individually") \
! \
! develop(bool, TraceOopMapRewrites, false, \
! "Trace rewriting of method oops during oop map generation") \
! \
! develop(bool, TraceICBuffer, false, \
! "Trace usage of IC buffer") \
! \
! develop(bool, TraceCompiledIC, false, \
! "Trace changes of compiled IC") \
! \
! develop(bool, FLSVerifyDictionary, false, \
! "Do lots of (expensive) FLS dictionary verification") \
! \
! \
! notproduct(bool, CheckMemoryInitialization, false, \
! "Check memory initialization") \
! \
! product(uintx, ProcessDistributionStride, 4, \
! "Stride through processors when distributing processes") \
! range(0, max_juint) \
! \
! develop(bool, TraceFinalizerRegistration, false, \
! "Trace registration of final references") \
! \
! product(bool, IgnoreEmptyClassPaths, false, \
! "Ignore empty path elements in -classpath") \
! \
! product(size_t, InitialBootClassLoaderMetaspaceSize, \
! NOT_LP64(2200*K) LP64_ONLY(4*M), \
! "Initial size of the boot class loader data metaspace") \
! range(30*K, max_uintx/BytesPerWord) \
! constraint(InitialBootClassLoaderMetaspaceSizeConstraintFunc, AfterErgo)\
! \
! product(bool, PrintHeapAtSIGBREAK, true, \
! "Print heap layout in response to SIGBREAK") \
! \
! manageable(bool, PrintClassHistogram, false, \
! "Print a histogram of class instances") \
! \
! experimental(double, ObjectCountCutOffPercent, 0.5, \
! "The percentage of the used heap that the instances of a class " \
! "must occupy for the class to generate a trace event") \
! range(0.0, 100.0) \
! \
! /* JVMTI heap profiling */ \
! \
! diagnostic(bool, TraceJVMTIObjectTagging, false, \
! "Trace JVMTI object tagging calls") \
! \
! diagnostic(bool, VerifyBeforeIteration, false, \
! "Verify memory system before JVMTI iteration") \
! \
! /* compiler interface */ \
! \
! develop(bool, CIPrintCompilerName, false, \
! "when CIPrint is active, print the name of the active compiler") \
! \
! diagnostic(bool, CIPrintCompileQueue, false, \
! "display the contents of the compile queue whenever a " \
! "compilation is enqueued") \
! \
! develop(bool, CIPrintRequests, false, \
! "display every request for compilation") \
! \
! product(bool, CITime, false, \
! "collect timing information for compilation") \
! \
! develop(bool, CITimeVerbose, false, \
! "be more verbose in compilation timings") \
! \
! develop(bool, CITimeEach, false, \
! "display timing information after each successful compilation") \
! \
! develop(bool, CICountOSR, false, \
! "use a separate counter when assigning ids to osr compilations") \
! \
! develop(bool, CICompileNatives, true, \
! "compile native methods if supported by the compiler") \
! \
! develop_pd(bool, CICompileOSR, \
! "compile on stack replacement methods if supported by the " \
! "compiler") \
! \
! develop(bool, CIPrintMethodCodes, false, \
! "print method bytecodes of the compiled code") \
! \
! develop(bool, CIPrintTypeFlow, false, \
! "print the results of ciTypeFlow analysis") \
! \
! develop(bool, CITraceTypeFlow, false, \
! "detailed per-bytecode tracing of ciTypeFlow analysis") \
! \
! develop(intx, OSROnlyBCI, -1, \
! "OSR only at this bci. Negative values mean exclude that bci") \
! \
! /* compiler */ \
! \
! /* notice: the max range value here is max_jint, not max_intx */ \
! /* because of overflow issue */ \
! product(intx, CICompilerCount, CI_COMPILER_COUNT, \
! "Number of compiler threads to run") \
! range(0, max_jint) \
! constraint(CICompilerCountConstraintFunc, AfterErgo) \
! \
! product(bool, UseDynamicNumberOfCompilerThreads, true, \
! "Dynamically choose the number of parallel compiler threads") \
! \
! diagnostic(bool, ReduceNumberOfCompilerThreads, true, \
! "Reduce the number of parallel compiler threads when they " \
! "are not used") \
! \
! diagnostic(bool, TraceCompilerThreads, false, \
! "Trace creation and removal of compiler threads") \
! \
! develop(bool, InjectCompilerCreationFailure, false, \
! "Inject thread creation failures for " \
! "UseDynamicNumberOfCompilerThreads") \
! \
! develop(bool, UseStackBanging, true, \
! "use stack banging for stack overflow checks (required for " \
! "proper StackOverflow handling; disable only to measure cost " \
! "of stackbanging)") \
! \
! develop(bool, GenerateSynchronizationCode, true, \
! "generate locking/unlocking code for synchronized methods and " \
! "monitors") \
! \
! develop(bool, GenerateRangeChecks, true, \
! "Generate range checks for array accesses") \
! \
! diagnostic_pd(bool, ImplicitNullChecks, \
! "Generate code for implicit null checks") \
! \
! product_pd(bool, TrapBasedNullChecks, \
! "Generate code for null checks that uses a cmp and trap " \
! "instruction raising SIGTRAP. This is only used if an access to" \
! "null (+offset) will not raise a SIGSEGV, i.e.," \
! "ImplicitNullChecks don't work (PPC64).") \
! \
! diagnostic(bool, EnableThreadSMRExtraValidityChecks, true, \
! "Enable Thread SMR extra validity checks") \
! \
! diagnostic(bool, EnableThreadSMRStatistics, trueInDebug, \
! "Enable Thread SMR Statistics") \
! \
! product(bool, UseNotificationThread, true, \
! "Use Notification Thread") \
! \
! product(bool, Inline, true, \
! "Enable inlining") \
! \
! product(bool, ClipInlining, true, \
! "Clip inlining if aggregate method exceeds DesiredMethodLimit") \
! \
! develop(bool, UseCHA, true, \
! "Enable CHA") \
! \
! product(bool, UseTypeProfile, true, \
! "Check interpreter profile for historically monomorphic calls") \
! \
! diagnostic(bool, PrintInlining, false, \
! "Print inlining optimizations") \
! \
! product(bool, UsePopCountInstruction, false, \
! "Use population count instruction") \
! \
! develop(bool, EagerInitialization, false, \
! "Eagerly initialize classes if possible") \
! \
! diagnostic(bool, LogTouchedMethods, false, \
! "Log methods which have been ever touched in runtime") \
! \
! diagnostic(bool, PrintTouchedMethodsAtExit, false, \
! "Print all methods that have been ever touched in runtime") \
! \
! develop(bool, TraceMethodReplacement, false, \
! "Print when methods are replaced do to recompilation") \
! \
! develop(bool, PrintMethodFlushing, false, \
! "Print the nmethods being flushed") \
! \
! diagnostic(bool, PrintMethodFlushingStatistics, false, \
! "print statistics about method flushing") \
! \
! diagnostic(intx, HotMethodDetectionLimit, 100000, \
! "Number of compiled code invocations after which " \
! "the method is considered as hot by the flusher") \
! range(1, max_jint) \
! \
! diagnostic(intx, MinPassesBeforeFlush, 10, \
! "Minimum number of sweeper passes before an nmethod " \
! "can be flushed") \
! range(0, max_intx) \
! \
! product(bool, UseCodeAging, true, \
! "Insert counter to detect warm methods") \
! \
! diagnostic(bool, StressCodeAging, false, \
! "Start with counters compiled in") \
! \
! develop(bool, StressCodeBuffers, false, \
! "Exercise code buffer expansion and other rare state changes") \
! \
! diagnostic(bool, DebugNonSafepoints, trueInDebug, \
! "Generate extra debugging information for non-safepoints in " \
! "nmethods") \
! \
! product(bool, PrintVMOptions, false, \
! "Print flags that appeared on the command line") \
! \
! product(bool, IgnoreUnrecognizedVMOptions, false, \
! "Ignore unrecognized VM options") \
! \
! product(bool, PrintCommandLineFlags, false, \
! "Print flags specified on command line or set by ergonomics") \
! \
! product(bool, PrintFlagsInitial, false, \
! "Print all VM flags before argument processing and exit VM") \
! \
! product(bool, PrintFlagsFinal, false, \
! "Print all VM flags after argument and ergonomic processing") \
! \
! notproduct(bool, PrintFlagsWithComments, false, \
! "Print all VM flags with default values and descriptions and " \
! "exit") \
! \
! product(bool, PrintFlagsRanges, false, \
! "Print VM flags and their ranges") \
! \
! diagnostic(bool, SerializeVMOutput, true, \
! "Use a mutex to serialize output to tty and LogFile") \
! \
! diagnostic(bool, DisplayVMOutput, true, \
! "Display all VM output on the tty, independently of LogVMOutput") \
! \
! diagnostic(bool, LogVMOutput, false, \
! "Save VM output to LogFile") \
! \
! diagnostic(ccstr, LogFile, NULL, \
! "If LogVMOutput or LogCompilation is on, save VM output to " \
! "this file [default: ./hotspot_pid%p.log] (%p replaced with pid)")\
! \
! product(ccstr, ErrorFile, NULL, \
! "If an error occurs, save the error data to this file " \
! "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \
! \
! product(bool, ExtensiveErrorReports, \
! PRODUCT_ONLY(false) NOT_PRODUCT(true), \
! "Error reports are more extensive.") \
! \
! product(bool, DisplayVMOutputToStderr, false, \
! "If DisplayVMOutput is true, display all VM output to stderr") \
! \
! product(bool, DisplayVMOutputToStdout, false, \
! "If DisplayVMOutput is true, display all VM output to stdout") \
! \
! product(bool, ErrorFileToStderr, false, \
! "If true, error data is printed to stderr instead of a file") \
! \
! product(bool, ErrorFileToStdout, false, \
! "If true, error data is printed to stdout instead of a file") \
! \
! product(bool, UseHeavyMonitors, false, \
! "use heavyweight instead of lightweight Java monitors") \
! \
! product(bool, PrintStringTableStatistics, false, \
! "print statistics about the StringTable and SymbolTable") \
! \
! diagnostic(bool, VerifyStringTableAtExit, false, \
! "verify StringTable contents at exit") \
! \
! notproduct(bool, PrintSymbolTableSizeHistogram, false, \
! "print histogram of the symbol table") \
! \
! notproduct(bool, ExitVMOnVerifyError, false, \
! "standard exit from VM if bytecode verify error " \
! "(only in debug mode)") \
! \
! diagnostic(ccstr, AbortVMOnException, NULL, \
! "Call fatal if this exception is thrown. Example: " \
! "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \
! \
! diagnostic(ccstr, AbortVMOnExceptionMessage, NULL, \
! "Call fatal if the exception pointed by AbortVMOnException " \
! "has this message") \
! \
! develop(bool, DebugVtables, false, \
! "add debugging code to vtable dispatch") \
! \
! notproduct(bool, PrintVtableStats, false, \
! "print vtables stats at end of run") \
! \
! develop(bool, TraceCreateZombies, false, \
! "trace creation of zombie nmethods") \
! \
! product(bool, RangeCheckElimination, true, \
! "Eliminate range checks") \
! \
! develop_pd(bool, UncommonNullCast, \
! "track occurrences of null in casts; adjust compiler tactics") \
! \
! develop(bool, TypeProfileCasts, true, \
! "treat casts like calls for purposes of type profiling") \
! \
! develop(bool, TraceLivenessGen, false, \
! "Trace the generation of liveness analysis information") \
! \
! notproduct(bool, TraceLivenessQuery, false, \
! "Trace queries of liveness analysis information") \
! \
! notproduct(bool, CollectIndexSetStatistics, false, \
! "Collect information about IndexSets") \
! \
! develop(bool, UseLoopSafepoints, true, \
! "Generate Safepoint nodes in every loop") \
! \
! develop(intx, FastAllocateSizeLimit, 128*K, \
! /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \
! "Inline allocations larger than this in doublewords must go slow")\
! \
! product_pd(bool, CompactStrings, \
! "Enable Strings to use single byte chars in backing store") \
! \
! product_pd(uintx, TypeProfileLevel, \
! "=XYZ, with Z: Type profiling of arguments at call; " \
! "Y: Type profiling of return value at call; " \
! "X: Type profiling of parameters to methods; " \
! "X, Y and Z in 0=off ; 1=jsr292 only; 2=all methods") \
! constraint(TypeProfileLevelConstraintFunc, AfterErgo) \
! \
! product(intx, TypeProfileArgsLimit, 2, \
! "max number of call arguments to consider for type profiling") \
! range(0, 16) \
! \
! product(intx, TypeProfileParmsLimit, 2, \
! "max number of incoming parameters to consider for type profiling"\
! ", -1 for all") \
! range(-1, 64) \
! \
! /* statistics */ \
! develop(bool, CountCompiledCalls, false, \
! "Count method invocations") \
! \
! notproduct(bool, CountRuntimeCalls, false, \
! "Count VM runtime calls") \
! \
! develop(bool, CountJNICalls, false, \
! "Count jni method invocations") \
! \
! notproduct(bool, CountJVMCalls, false, \
! "Count jvm method invocations") \
! \
! notproduct(bool, CountRemovableExceptions, false, \
! "Count exceptions that could be replaced by branches due to " \
! "inlining") \
! \
! notproduct(bool, ICMissHistogram, false, \
! "Produce histogram of IC misses") \
! \
! /* interpreter */ \
! product_pd(bool, RewriteBytecodes, \
! "Allow rewriting of bytecodes (bytecodes are not immutable)") \
! \
! product_pd(bool, RewriteFrequentPairs, \
! "Rewrite frequently used bytecode pairs into a single bytecode") \
! \
! diagnostic(bool, PrintInterpreter, false, \
! "Print the generated interpreter code") \
! \
! product(bool, UseInterpreter, true, \
! "Use interpreter for non-compiled methods") \
! \
! develop(bool, UseFastSignatureHandlers, true, \
! "Use fast signature handlers for native calls") \
! \
! product(bool, UseLoopCounter, true, \
! "Increment invocation counter on backward branch") \
! \
! product_pd(bool, UseOnStackReplacement, \
! "Use on stack replacement, calls runtime if invoc. counter " \
! "overflows in loop") \
! \
! notproduct(bool, TraceOnStackReplacement, false, \
! "Trace on stack replacement") \
! \
! product_pd(bool, PreferInterpreterNativeStubs, \
! "Use always interpreter stubs for native methods invoked via " \
! "interpreter") \
! \
! develop(bool, CountBytecodes, false, \
! "Count number of bytecodes executed") \
! \
! develop(bool, PrintBytecodeHistogram, false, \
! "Print histogram of the executed bytecodes") \
! \
! develop(bool, PrintBytecodePairHistogram, false, \
! "Print histogram of the executed bytecode pairs") \
! \
! diagnostic(bool, PrintSignatureHandlers, false, \
! "Print code generated for native method signature handlers") \
! \
! develop(bool, VerifyOops, false, \
! "Do plausibility checks for oops") \
! \
! develop(bool, CheckUnhandledOops, false, \
! "Check for unhandled oops in VM code") \
! \
! develop(bool, VerifyJNIFields, trueInDebug, \
! "Verify jfieldIDs for instance fields") \
! \
! notproduct(bool, VerifyJNIEnvThread, false, \
! "Verify JNIEnv.thread == Thread::current() when entering VM " \
! "from JNI") \
! \
! develop(bool, VerifyFPU, false, \
! "Verify FPU state (check for NaN's, etc.)") \
! \
! develop(bool, VerifyThread, false, \
! "Watch the thread register for corruption (SPARC only)") \
! \
! develop(bool, VerifyActivationFrameSize, false, \
! "Verify that activation frame didn't become smaller than its " \
! "minimal size") \
! \
! develop(bool, TraceFrequencyInlining, false, \
! "Trace frequency based inlining") \
! \
! develop_pd(bool, InlineIntrinsics, \
! "Inline intrinsics that can be statically resolved") \
! \
! product_pd(bool, ProfileInterpreter, \
! "Profile at the bytecode level during interpretation") \
! \
! develop(bool, TraceProfileInterpreter, false, \
! "Trace profiling at the bytecode level during interpretation. " \
! "This outputs the profiling information collected to improve " \
! "jit compilation.") \
! \
! develop_pd(bool, ProfileTraps, \
! "Profile deoptimization traps at the bytecode level") \
! \
! product(intx, ProfileMaturityPercentage, 20, \
! "number of method invocations/branches (expressed as % of " \
! "CompileThreshold) before using the method's profile") \
! range(0, 100) \
! \
! diagnostic(bool, PrintMethodData, false, \
! "Print the results of +ProfileInterpreter at end of run") \
! \
! develop(bool, VerifyDataPointer, trueInDebug, \
! "Verify the method data pointer during interpreter profiling") \
! \
! develop(bool, VerifyCompiledCode, false, \
! "Include miscellaneous runtime verifications in nmethod code; " \
! "default off because it disturbs nmethod size heuristics") \
! \
! notproduct(bool, CrashGCForDumpingJavaThread, false, \
! "Manually make GC thread crash then dump java stack trace; " \
! "Test only") \
! \
! /* compilation */ \
! product(bool, UseCompiler, true, \
! "Use Just-In-Time compilation") \
! \
! product(bool, UseCounterDecay, true, \
! "Adjust recompilation counters") \
! \
! develop(intx, CounterHalfLifeTime, 30, \
! "Half-life time of invocation counters (in seconds)") \
! \
! develop(intx, CounterDecayMinIntervalLength, 500, \
! "The minimum interval (in milliseconds) between invocation of " \
! "CounterDecay") \
! \
! product(bool, AlwaysCompileLoopMethods, false, \
! "When using recompilation, never interpret methods " \
! "containing loops") \
! \
! product(bool, DontCompileHugeMethods, true, \
! "Do not compile methods > HugeMethodLimit") \
! \
! /* Bytecode escape analysis estimation. */ \
! product(bool, EstimateArgEscape, true, \
! "Analyze bytecodes to estimate escape state of arguments") \
! \
! product(intx, BCEATraceLevel, 0, \
! "How much tracing to do of bytecode escape analysis estimates " \
! "(0-3)") \
! range(0, 3) \
! \
! product(intx, MaxBCEAEstimateLevel, 5, \
! "Maximum number of nested calls that are analyzed by BC EA") \
! range(0, max_jint) \
! \
! product(intx, MaxBCEAEstimateSize, 150, \
! "Maximum bytecode size of a method to be analyzed by BC EA") \
! range(0, max_jint) \
! \
! product(intx, AllocatePrefetchStyle, 1, \
! "0 = no prefetch, " \
! "1 = generate prefetch instructions for each allocation, " \
! "2 = use TLAB watermark to gate allocation prefetch, " \
! "3 = generate one prefetch instruction per cache line") \
! range(0, 3) \
! \
! product(intx, AllocatePrefetchDistance, -1, \
! "Distance to prefetch ahead of allocation pointer. " \
! "-1: use system-specific value (automatically determined") \
! constraint(AllocatePrefetchDistanceConstraintFunc,AfterMemoryInit)\
! \
! product(intx, AllocatePrefetchLines, 3, \
! "Number of lines to prefetch ahead of array allocation pointer") \
! range(1, 64) \
! \
! product(intx, AllocateInstancePrefetchLines, 1, \
! "Number of lines to prefetch ahead of instance allocation " \
! "pointer") \
! range(1, 64) \
! \
! product(intx, AllocatePrefetchStepSize, 16, \
! "Step size in bytes of sequential prefetch instructions") \
! range(1, 512) \
! constraint(AllocatePrefetchStepSizeConstraintFunc,AfterMemoryInit)\
! \
! product(intx, AllocatePrefetchInstr, 0, \
! "Select instruction to prefetch ahead of allocation pointer") \
! constraint(AllocatePrefetchInstrConstraintFunc, AfterMemoryInit) \
! \
! /* deoptimization */ \
! develop(bool, TraceDeoptimization, false, \
! "Trace deoptimization") \
! \
! develop(bool, PrintDeoptimizationDetails, false, \
! "Print more information about deoptimization") \
! \
! develop(bool, DebugDeoptimization, false, \
! "Tracing various information while debugging deoptimization") \
! \
! product(intx, SelfDestructTimer, 0, \
! "Will cause VM to terminate after a given time (in minutes) " \
! "(0 means off)") \
! range(0, max_intx) \
! \
! product(intx, MaxJavaStackTraceDepth, 1024, \
! "The maximum number of lines in the stack trace for Java " \
! "exceptions (0 means all)") \
! range(0, max_jint/2) \
! \
! /* notice: the max range value here is max_jint, not max_intx */ \
! /* because of overflow issue */ \
! diagnostic(intx, GuaranteedSafepointInterval, 1000, \
! "Guarantee a safepoint (at least) every so many milliseconds " \
! "(0 means none)") \
! range(0, max_jint) \
! \
! product(intx, SafepointTimeoutDelay, 10000, \
! "Delay in milliseconds for option SafepointTimeout") \
! LP64_ONLY(range(0, max_intx/MICROUNITS)) \
! NOT_LP64(range(0, max_intx)) \
! \
! product(intx, NmethodSweepActivity, 10, \
! "Removes cold nmethods from code cache if > 0. Higher values " \
! "result in more aggressive sweeping") \
! range(0, 2000) \
! \
! notproduct(bool, LogSweeper, false, \
! "Keep a ring buffer of sweeper activity") \
! \
! notproduct(intx, SweeperLogEntries, 1024, \
! "Number of records in the ring buffer of sweeper activity") \
! \
! notproduct(intx, MemProfilingInterval, 500, \
! "Time between each invocation of the MemProfiler") \
! \
! develop(intx, MallocCatchPtr, -1, \
! "Hit breakpoint when mallocing/freeing this pointer") \
! \
! notproduct(ccstrlist, SuppressErrorAt, "", \
! "List of assertions (file:line) to muzzle") \
! \
! develop(intx, StackPrintLimit, 100, \
! "number of stack frames to print in VM-level stack dump") \
! \
! notproduct(intx, MaxElementPrintSize, 256, \
! "maximum number of elements to print") \
! \
! notproduct(intx, MaxSubklassPrintSize, 4, \
! "maximum number of subklasses to print when printing klass") \
! \
! product(intx, MaxInlineLevel, 15, \
! "maximum number of nested calls that are inlined") \
! range(0, max_jint) \
! \
! product(intx, MaxRecursiveInlineLevel, 1, \
! "maximum number of nested recursive calls that are inlined") \
! range(0, max_jint) \
! \
! develop(intx, MaxForceInlineLevel, 100, \
! "maximum number of nested calls that are forced for inlining " \
! "(using CompileCommand or marked w/ @ForceInline)") \
! range(0, max_jint) \
! \
! product_pd(intx, InlineSmallCode, \
! "Only inline already compiled methods if their code size is " \
! "less than this") \
! range(0, max_jint) \
! \
! product(intx, MaxInlineSize, 35, \
! "The maximum bytecode size of a method to be inlined") \
! range(0, max_jint) \
! \
! product_pd(intx, FreqInlineSize, \
! "The maximum bytecode size of a frequent method to be inlined") \
! range(0, max_jint) \
! \
! product(intx, MaxTrivialSize, 6, \
! "The maximum bytecode size of a trivial method to be inlined") \
! range(0, max_jint) \
! \
! product(intx, MinInliningThreshold, 250, \
! "The minimum invocation count a method needs to have to be " \
! "inlined") \
! range(0, max_jint) \
! \
! develop(intx, MethodHistogramCutoff, 100, \
! "The cutoff value for method invocation histogram (+CountCalls)") \
! \
! develop(intx, DontYieldALotInterval, 10, \
! "Interval between which yields will be dropped (milliseconds)") \
! \
! notproduct(intx, DeoptimizeALotInterval, 5, \
! "Number of exits until DeoptimizeALot kicks in") \
! \
! notproduct(intx, ZombieALotInterval, 5, \
! "Number of exits until ZombieALot kicks in") \
! \
! diagnostic(uintx, MallocMaxTestWords, 0, \
! "If non-zero, maximum number of words that malloc/realloc can " \
! "allocate (for testing only)") \
! range(0, max_uintx) \
! \
! product(intx, TypeProfileWidth, 2, \
! "Number of receiver types to record in call/cast profile") \
! range(0, 8) \
! \
! develop(intx, BciProfileWidth, 2, \
! "Number of return bci's to record in ret profile") \
! \
! product(intx, PerMethodRecompilationCutoff, 400, \
! "After recompiling N times, stay in the interpreter (-1=>'Inf')") \
! range(-1, max_intx) \
! \
! product(intx, PerBytecodeRecompilationCutoff, 200, \
! "Per-BCI limit on repeated recompilation (-1=>'Inf')") \
! range(-1, max_intx) \
! \
! product(intx, PerMethodTrapLimit, 100, \
! "Limit on traps (of one kind) in a method (includes inlines)") \
! range(0, max_jint) \
! \
! experimental(intx, PerMethodSpecTrapLimit, 5000, \
! "Limit on speculative traps (of one kind) in a method " \
! "(includes inlines)") \
! range(0, max_jint) \
! \
! product(intx, PerBytecodeTrapLimit, 4, \
! "Limit on traps (of one kind) at a particular BCI") \
! range(0, max_jint) \
! \
! experimental(intx, SpecTrapLimitExtraEntries, 3, \
! "Extra method data trap entries for speculation") \
! \
! develop(intx, InlineFrequencyRatio, 20, \
! "Ratio of call site execution to caller method invocation") \
! range(0, max_jint) \
! \
! diagnostic_pd(intx, InlineFrequencyCount, \
! "Count of call site execution necessary to trigger frequent " \
! "inlining") \
! range(0, max_jint) \
! \
! develop(intx, InlineThrowCount, 50, \
! "Force inlining of interpreted methods that throw this often") \
! range(0, max_jint) \
! \
! develop(intx, InlineThrowMaxSize, 200, \
! "Force inlining of throwing methods smaller than this") \
! range(0, max_jint) \
! \
! develop(intx, ProfilerNodeSize, 1024, \
! "Size in K to allocate for the Profile Nodes of each thread") \
! range(0, 1024) \
! \
! product_pd(size_t, MetaspaceSize, \
! "Initial threshold (in bytes) at which a garbage collection " \
! "is done to reduce Metaspace usage") \
! constraint(MetaspaceSizeConstraintFunc,AfterErgo) \
! \
! product(size_t, MaxMetaspaceSize, max_uintx, \
! "Maximum size of Metaspaces (in bytes)") \
! constraint(MaxMetaspaceSizeConstraintFunc,AfterErgo) \
! \
! product(size_t, CompressedClassSpaceSize, 1*G, \
! "Maximum size of class area in Metaspace when compressed " \
! "class pointers are used") \
! range(1*M, 3*G) \
! \
! manageable(uintx, MinHeapFreeRatio, 40, \
! "The minimum percentage of heap free after GC to avoid expansion."\
! " For most GCs this applies to the old generation. In G1 and" \
! " ParallelGC it applies to the whole heap.") \
! range(0, 100) \
! constraint(MinHeapFreeRatioConstraintFunc,AfterErgo) \
! \
! manageable(uintx, MaxHeapFreeRatio, 70, \
! "The maximum percentage of heap free after GC to avoid shrinking."\
! " For most GCs this applies to the old generation. In G1 and" \
! " ParallelGC it applies to the whole heap.") \
! range(0, 100) \
! constraint(MaxHeapFreeRatioConstraintFunc,AfterErgo) \
! \
! product(bool, ShrinkHeapInSteps, true, \
! "When disabled, informs the GC to shrink the java heap directly" \
! " to the target size at the next full GC rather than requiring" \
! " smaller steps during multiple full GCs.") \
! \
! product(intx, SoftRefLRUPolicyMSPerMB, 1000, \
! "Number of milliseconds per MB of free space in the heap") \
! range(0, max_intx) \
! constraint(SoftRefLRUPolicyMSPerMBConstraintFunc,AfterMemoryInit) \
! \
! product(size_t, MinHeapDeltaBytes, ScaleForWordSize(128*K), \
! "The minimum change in heap space due to GC (in bytes)") \
! range(0, max_uintx) \
! \
! product(size_t, MinMetaspaceExpansion, ScaleForWordSize(256*K), \
! "The minimum expansion of Metaspace (in bytes)") \
! range(0, max_uintx) \
! \
! product(uintx, MaxMetaspaceFreeRatio, 70, \
! "The maximum percentage of Metaspace free after GC to avoid " \
! "shrinking") \
! range(0, 100) \
! constraint(MaxMetaspaceFreeRatioConstraintFunc,AfterErgo) \
! \
! product(uintx, MinMetaspaceFreeRatio, 40, \
! "The minimum percentage of Metaspace free after GC to avoid " \
! "expansion") \
! range(0, 99) \
! constraint(MinMetaspaceFreeRatioConstraintFunc,AfterErgo) \
! \
! product(size_t, MaxMetaspaceExpansion, ScaleForWordSize(4*M), \
! "The maximum expansion of Metaspace without full GC (in bytes)") \
! range(0, max_uintx) \
! \
! /* stack parameters */ \
! product_pd(intx, StackYellowPages, \
! "Number of yellow zone (recoverable overflows) pages of size " \
! "4KB. If pages are bigger yellow zone is aligned up.") \
! range(MIN_STACK_YELLOW_PAGES, (DEFAULT_STACK_YELLOW_PAGES+5)) \
! \
! product_pd(intx, StackRedPages, \
! "Number of red zone (unrecoverable overflows) pages of size " \
! "4KB. If pages are bigger red zone is aligned up.") \
! range(MIN_STACK_RED_PAGES, (DEFAULT_STACK_RED_PAGES+2)) \
! \
! product_pd(intx, StackReservedPages, \
! "Number of reserved zone (reserved to annotated methods) pages" \
! " of size 4KB. If pages are bigger reserved zone is aligned up.") \
! range(MIN_STACK_RESERVED_PAGES, (DEFAULT_STACK_RESERVED_PAGES+10))\
! \
! product(bool, RestrictReservedStack, true, \
! "Restrict @ReservedStackAccess to trusted classes") \
! \
! /* greater stack shadow pages can't generate instruction to bang stack */ \
! product_pd(intx, StackShadowPages, \
! "Number of shadow zone (for overflow checking) pages of size " \
! "4KB. If pages are bigger shadow zone is aligned up. " \
! "This should exceed the depth of the VM and native call stack.") \
! range(MIN_STACK_SHADOW_PAGES, (DEFAULT_STACK_SHADOW_PAGES+30)) \
! \
! product_pd(intx, ThreadStackSize, \
! "Thread Stack Size (in Kbytes)") \
! range(0, 1 * M) \
! \
! product_pd(intx, VMThreadStackSize, \
! "Non-Java Thread Stack Size (in Kbytes)") \
! range(0, max_intx/(1 * K)) \
! \
! product_pd(intx, CompilerThreadStackSize, \
! "Compiler Thread Stack Size (in Kbytes)") \
! range(0, max_intx/(1 * K)) \
! \
! develop_pd(size_t, JVMInvokeMethodSlack, \
! "Stack space (bytes) required for JVM_InvokeMethod to complete") \
! \
! /* code cache parameters */ \
! develop_pd(uintx, CodeCacheSegmentSize, \
! "Code cache segment size (in bytes) - smallest unit of " \
! "allocation") \
! range(1, 1024) \
! constraint(CodeCacheSegmentSizeConstraintFunc, AfterErgo) \
! \
! develop_pd(intx, CodeEntryAlignment, \
! "Code entry alignment for generated code (in bytes)") \
! constraint(CodeEntryAlignmentConstraintFunc, AfterErgo) \
! \
! product_pd(intx, OptoLoopAlignment, \
! "Align inner loops to zero relative to this modulus") \
! range(1, 16) \
! constraint(OptoLoopAlignmentConstraintFunc, AfterErgo) \
! \
! product_pd(uintx, InitialCodeCacheSize, \
! "Initial code cache size (in bytes)") \
! range(os::vm_page_size(), max_uintx) \
! \
! develop_pd(uintx, CodeCacheMinimumUseSpace, \
! "Minimum code cache size (in bytes) required to start VM.") \
! range(0, max_uintx) \
! \
! product(bool, SegmentedCodeCache, false, \
! "Use a segmented code cache") \
! \
! product_pd(uintx, ReservedCodeCacheSize, \
! "Reserved code cache size (in bytes) - maximum code cache size") \
! range(os::vm_page_size(), max_uintx) \
! \
! product_pd(uintx, NonProfiledCodeHeapSize, \
! "Size of code heap with non-profiled methods (in bytes)") \
! range(0, max_uintx) \
! \
! product_pd(uintx, ProfiledCodeHeapSize, \
! "Size of code heap with profiled methods (in bytes)") \
! range(0, max_uintx) \
! \
! product_pd(uintx, NonNMethodCodeHeapSize, \
! "Size of code heap with non-nmethods (in bytes)") \
! range(os::vm_page_size(), max_uintx) \
! \
! product_pd(uintx, CodeCacheExpansionSize, \
! "Code cache expansion size (in bytes)") \
! range(32*K, max_uintx) \
! \
! diagnostic_pd(uintx, CodeCacheMinBlockLength, \
! "Minimum number of segments in a code cache block") \
! range(1, 100) \
! \
! notproduct(bool, ExitOnFullCodeCache, false, \
! "Exit the VM if we fill the code cache") \
! \
! product(bool, UseCodeCacheFlushing, true, \
! "Remove cold/old nmethods from the code cache") \
! \
! product(uintx, StartAggressiveSweepingAt, 10, \
! "Start aggressive sweeping if X[%] of the code cache is free." \
! "Segmented code cache: X[%] of the non-profiled heap." \
! "Non-segmented code cache: X[%] of the total code cache") \
! range(0, 100) \
! \
! /* AOT parameters */ \
! experimental(bool, UseAOT, false, \
! "Use AOT compiled files") \
! \
! experimental(ccstrlist, AOTLibrary, NULL, \
! "AOT library") \
! \
! experimental(bool, PrintAOT, false, \
! "Print used AOT klasses and methods") \
! \
! notproduct(bool, PrintAOTStatistics, false, \
! "Print AOT statistics") \
! \
! diagnostic(bool, UseAOTStrictLoading, false, \
! "Exit the VM if any of the AOT libraries has invalid config") \
! \
! product(bool, CalculateClassFingerprint, false, \
! "Calculate class fingerprint") \
! \
! /* interpreter debugging */ \
! develop(intx, BinarySwitchThreshold, 5, \
! "Minimal number of lookupswitch entries for rewriting to binary " \
! "switch") \
! \
! develop(intx, StopInterpreterAt, 0, \
! "Stop interpreter execution at specified bytecode number") \
! \
! develop(intx, TraceBytecodesAt, 0, \
! "Trace bytecodes starting with specified bytecode number") \
! \
! /* compiler interface */ \
! develop(intx, CIStart, 0, \
! "The id of the first compilation to permit") \
! \
! develop(intx, CIStop, max_jint, \
! "The id of the last compilation to permit") \
! \
! develop(intx, CIStartOSR, 0, \
! "The id of the first osr compilation to permit " \
! "(CICountOSR must be on)") \
! \
! develop(intx, CIStopOSR, max_jint, \
! "The id of the last osr compilation to permit " \
! "(CICountOSR must be on)") \
! \
! develop(intx, CIBreakAtOSR, -1, \
! "The id of osr compilation to break at") \
! \
! develop(intx, CIBreakAt, -1, \
! "The id of compilation to break at") \
! \
! product(ccstrlist, CompileOnly, "", \
! "List of methods (pkg/class.name) to restrict compilation to") \
! \
! product(ccstr, CompileCommandFile, NULL, \
! "Read compiler commands from this file [.hotspot_compiler]") \
! \
! diagnostic(ccstr, CompilerDirectivesFile, NULL, \
! "Read compiler directives from this file") \
! \
! product(ccstrlist, CompileCommand, "", \
! "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \
! \
! develop(bool, ReplayCompiles, false, \
! "Enable replay of compilations from ReplayDataFile") \
! \
! product(ccstr, ReplayDataFile, NULL, \
! "File containing compilation replay information" \
! "[default: ./replay_pid%p.log] (%p replaced with pid)") \
! \
! product(ccstr, InlineDataFile, NULL, \
! "File containing inlining replay information" \
! "[default: ./inline_pid%p.log] (%p replaced with pid)") \
! \
! develop(intx, ReplaySuppressInitializers, 2, \
! "Control handling of class initialization during replay: " \
! "0 - don't do anything special; " \
! "1 - treat all class initializers as empty; " \
! "2 - treat class initializers for application classes as empty; " \
! "3 - allow all class initializers to run during bootstrap but " \
! " pretend they are empty after starting replay") \
! range(0, 3) \
! \
! develop(bool, ReplayIgnoreInitErrors, false, \
! "Ignore exceptions thrown during initialization for replay") \
! \
! product(bool, DumpReplayDataOnError, true, \
! "Record replay data for crashing compiler threads") \
! \
! product(bool, CICompilerCountPerCPU, false, \
! "1 compiler thread for log(N CPUs)") \
! \
! notproduct(intx, CICrashAt, -1, \
! "id of compilation to trigger assert in compiler thread for " \
! "the purpose of testing, e.g. generation of replay data") \
! notproduct(bool, CIObjectFactoryVerify, false, \
! "enable potentially expensive verification in ciObjectFactory") \
! \
! diagnostic(bool, AbortVMOnCompilationFailure, false, \
! "Abort VM when method had failed to compile.") \
! \
! /* Priorities */ \
! product_pd(bool, UseThreadPriorities, "Use native thread priorities") \
! \
! product(intx, ThreadPriorityPolicy, 0, \
! "0 : Normal. "\
! " VM chooses priorities that are appropriate for normal "\
! " applications. On Solaris NORM_PRIORITY and above are mapped "\
! " to normal native priority. Java priorities below " \
! " NORM_PRIORITY map to lower native priority values. On "\
! " Windows applications are allowed to use higher native "\
! " priorities. However, with ThreadPriorityPolicy=0, VM will "\
! " not use the highest possible native priority, "\
! " THREAD_PRIORITY_TIME_CRITICAL, as it may interfere with "\
! " system threads. On Linux thread priorities are ignored "\
! " because the OS does not support static priority in "\
! " SCHED_OTHER scheduling class which is the only choice for "\
! " non-root, non-realtime applications. "\
! "1 : Aggressive. "\
! " Java thread priorities map over to the entire range of "\
! " native thread priorities. Higher Java thread priorities map "\
! " to higher native thread priorities. This policy should be "\
! " used with care, as sometimes it can cause performance "\
! " degradation in the application and/or the entire system. On "\
! " Linux/BSD/macOS this policy requires root privilege or an "\
! " extended capability.") \
! range(0, 1) \
! \
! product(bool, ThreadPriorityVerbose, false, \
! "Print priority changes") \
! \
! product(intx, CompilerThreadPriority, -1, \
! "The native priority at which compiler threads should run " \
! "(-1 means no change)") \
! range(min_jint, max_jint) \
! constraint(CompilerThreadPriorityConstraintFunc, AfterErgo) \
! \
! product(intx, VMThreadPriority, -1, \
! "The native priority at which the VM thread should run " \
! "(-1 means no change)") \
! range(-1, 127) \
! \
! product(intx, JavaPriority1_To_OSPriority, -1, \
! "Map Java priorities to OS priorities") \
! range(-1, 127) \
! \
! product(intx, JavaPriority2_To_OSPriority, -1, \
! "Map Java priorities to OS priorities") \
! range(-1, 127) \
! \
! product(intx, JavaPriority3_To_OSPriority, -1, \
! "Map Java priorities to OS priorities") \
! range(-1, 127) \
! \
! product(intx, JavaPriority4_To_OSPriority, -1, \
! "Map Java priorities to OS priorities") \
! range(-1, 127) \
! \
! product(intx, JavaPriority5_To_OSPriority, -1, \
! "Map Java priorities to OS priorities") \
! range(-1, 127) \
! \
! product(intx, JavaPriority6_To_OSPriority, -1, \
! "Map Java priorities to OS priorities") \
! range(-1, 127) \
! \
! product(intx, JavaPriority7_To_OSPriority, -1, \
! "Map Java priorities to OS priorities") \
! range(-1, 127) \
! \
! product(intx, JavaPriority8_To_OSPriority, -1, \
! "Map Java priorities to OS priorities") \
! range(-1, 127) \
! \
! product(intx, JavaPriority9_To_OSPriority, -1, \
! "Map Java priorities to OS priorities") \
! range(-1, 127) \
! \
! product(intx, JavaPriority10_To_OSPriority,-1, \
! "Map Java priorities to OS priorities") \
! range(-1, 127) \
! \
! experimental(bool, UseCriticalJavaThreadPriority, false, \
! "Java thread priority 10 maps to critical scheduling priority") \
! \
! experimental(bool, UseCriticalCompilerThreadPriority, false, \
! "Compiler thread(s) run at critical scheduling priority") \
! \
! develop(intx, NewCodeParameter, 0, \
! "Testing Only: Create a dedicated integer parameter before " \
! "putback") \
! \
! /* new oopmap storage allocation */ \
! develop(intx, MinOopMapAllocation, 8, \
! "Minimum number of OopMap entries in an OopMapSet") \
! \
! /* Background Compilation */ \
! develop(intx, LongCompileThreshold, 50, \
! "Used with +TraceLongCompiles") \
! \
! /* recompilation */ \
! product_pd(intx, CompileThreshold, \
! "number of interpreted method invocations before (re-)compiling") \
! constraint(CompileThresholdConstraintFunc, AfterErgo) \
! \
! product(double, CompileThresholdScaling, 1.0, \
! "Factor to control when first compilation happens " \
! "(both with and without tiered compilation): " \
! "values greater than 1.0 delay counter overflow, " \
! "values between 0 and 1.0 rush counter overflow, " \
! "value of 1.0 leaves compilation thresholds unchanged " \
! "value of 0.0 is equivalent to -Xint. " \
! "" \
! "Flag can be set as per-method option. " \
! "If a value is specified for a method, compilation thresholds " \
! "for that method are scaled by both the value of the global flag "\
! "and the value of the per-method flag.") \
! range(0.0, DBL_MAX) \
! \
! product(intx, Tier0InvokeNotifyFreqLog, 7, \
! "Interpreter (tier 0) invocation notification frequency") \
! range(0, 30) \
! \
! product(intx, Tier2InvokeNotifyFreqLog, 11, \
! "C1 without MDO (tier 2) invocation notification frequency") \
! range(0, 30) \
! \
! product(intx, Tier3InvokeNotifyFreqLog, 10, \
! "C1 with MDO profiling (tier 3) invocation notification " \
! "frequency") \
! range(0, 30) \
! \
! product(intx, Tier23InlineeNotifyFreqLog, 20, \
! "Inlinee invocation (tiers 2 and 3) notification frequency") \
! range(0, 30) \
! \
! product(intx, Tier0BackedgeNotifyFreqLog, 10, \
! "Interpreter (tier 0) invocation notification frequency") \
! range(0, 30) \
! \
! product(intx, Tier2BackedgeNotifyFreqLog, 14, \
! "C1 without MDO (tier 2) invocation notification frequency") \
! range(0, 30) \
! \
! product(intx, Tier3BackedgeNotifyFreqLog, 13, \
! "C1 with MDO profiling (tier 3) invocation notification " \
! "frequency") \
! range(0, 30) \
! \
! product(intx, Tier2CompileThreshold, 0, \
! "threshold at which tier 2 compilation is invoked") \
! range(0, max_jint) \
! \
! product(intx, Tier2BackEdgeThreshold, 0, \
! "Back edge threshold at which tier 2 compilation is invoked") \
! range(0, max_jint) \
! \
! product(intx, Tier3InvocationThreshold, 200, \
! "Compile if number of method invocations crosses this " \
! "threshold") \
! range(0, max_jint) \
! \
! product(intx, Tier3MinInvocationThreshold, 100, \
! "Minimum invocation to compile at tier 3") \
! range(0, max_jint) \
! \
! product(intx, Tier3CompileThreshold, 2000, \
! "Threshold at which tier 3 compilation is invoked (invocation " \
! "minimum must be satisfied)") \
! range(0, max_jint) \
! \
! product(intx, Tier3BackEdgeThreshold, 60000, \
! "Back edge threshold at which tier 3 OSR compilation is invoked") \
! range(0, max_jint) \
! \
! product(intx, Tier3AOTInvocationThreshold, 10000, \
! "Compile if number of method invocations crosses this " \
! "threshold if coming from AOT") \
! range(0, max_jint) \
! \
! product(intx, Tier3AOTMinInvocationThreshold, 1000, \
! "Minimum invocation to compile at tier 3 if coming from AOT") \
! range(0, max_jint) \
! \
! product(intx, Tier3AOTCompileThreshold, 15000, \
! "Threshold at which tier 3 compilation is invoked (invocation " \
! "minimum must be satisfied) if coming from AOT") \
! range(0, max_jint) \
! \
! product(intx, Tier3AOTBackEdgeThreshold, 120000, \
! "Back edge threshold at which tier 3 OSR compilation is invoked " \
! "if coming from AOT") \
! range(0, max_jint) \
! \
! diagnostic(intx, Tier0AOTInvocationThreshold, 200, \
! "Switch to interpreter to profile if the number of method " \
! "invocations crosses this threshold if coming from AOT " \
! "(applicable only with " \
! "CompilationMode=high-only|high-only-quick-internal)") \
! range(0, max_jint) \
! \
! diagnostic(intx, Tier0AOTMinInvocationThreshold, 100, \
! "Minimum number of invocations to switch to interpreter " \
! "to profile if coming from AOT " \
! "(applicable only with " \
! "CompilationMode=high-only|high-only-quick-internal)") \
! range(0, max_jint) \
! \
! diagnostic(intx, Tier0AOTCompileThreshold, 2000, \
! "Threshold at which to switch to interpreter to profile " \
! "if coming from AOT " \
! "(invocation minimum must be satisfied, " \
! "applicable only with " \
! "CompilationMode=high-only|high-only-quick-internal)") \
! range(0, max_jint) \
! \
! diagnostic(intx, Tier0AOTBackEdgeThreshold, 60000, \
! "Back edge threshold at which to switch to interpreter " \
! "to profile if coming from AOT " \
! "(applicable only with " \
! "CompilationMode=high-only|high-only-quick-internal)") \
! range(0, max_jint) \
! \
! product(intx, Tier4InvocationThreshold, 5000, \
! "Compile if number of method invocations crosses this " \
! "threshold") \
! range(0, max_jint) \
! \
! product(intx, Tier4MinInvocationThreshold, 600, \
! "Minimum invocation to compile at tier 4") \
! range(0, max_jint) \
! \
! product(intx, Tier4CompileThreshold, 15000, \
! "Threshold at which tier 4 compilation is invoked (invocation " \
! "minimum must be satisfied)") \
! range(0, max_jint) \
! \
! product(intx, Tier4BackEdgeThreshold, 40000, \
! "Back edge threshold at which tier 4 OSR compilation is invoked") \
! range(0, max_jint) \
! \
! diagnostic(intx, Tier40InvocationThreshold, 5000, \
! "Compile if number of method invocations crosses this " \
! "threshold (applicable only with " \
! "CompilationMode=high-only|high-only-quick-internal)") \
! range(0, max_jint) \
! \
! diagnostic(intx, Tier40MinInvocationThreshold, 600, \
! "Minimum number of invocations to compile at tier 4 " \
! "(applicable only with " \
! "CompilationMode=high-only|high-only-quick-internal)") \
! range(0, max_jint) \
! \
! diagnostic(intx, Tier40CompileThreshold, 10000, \
! "Threshold at which tier 4 compilation is invoked (invocation " \
! "minimum must be satisfied, applicable only with " \
! "CompilationMode=high-only|high-only-quick-internal)") \
! range(0, max_jint) \
! \
! diagnostic(intx, Tier40BackEdgeThreshold, 15000, \
! "Back edge threshold at which tier 4 OSR compilation is invoked " \
! "(applicable only with " \
! "CompilationMode=high-only|high-only-quick-internal)") \
! range(0, max_jint) \
! \
! diagnostic(intx, Tier0Delay, 5, \
! "If C2 queue size grows over this amount per compiler thread " \
! "do not start profiling in the interpreter " \
! "(applicable only with " \
! "CompilationMode=high-only|high-only-quick-internal)") \
! range(0, max_jint) \
! \
! product(intx, Tier3DelayOn, 5, \
! "If C2 queue size grows over this amount per compiler thread " \
! "stop compiling at tier 3 and start compiling at tier 2") \
! range(0, max_jint) \
! \
! product(intx, Tier3DelayOff, 2, \
! "If C2 queue size is less than this amount per compiler thread " \
! "allow methods compiled at tier 2 transition to tier 3") \
! range(0, max_jint) \
! \
! product(intx, Tier3LoadFeedback, 5, \
! "Tier 3 thresholds will increase twofold when C1 queue size " \
! "reaches this amount per compiler thread") \
! range(0, max_jint) \
! \
! product(intx, Tier4LoadFeedback, 3, \
! "Tier 4 thresholds will increase twofold when C2 queue size " \
! "reaches this amount per compiler thread") \
! range(0, max_jint) \
! \
! product(intx, TieredCompileTaskTimeout, 50, \
! "Kill compile task if method was not used within " \
! "given timeout in milliseconds") \
! range(0, max_intx) \
! \
! product(intx, TieredStopAtLevel, 4, \
! "Stop at given compilation level") \
! range(0, 4) \
! \
! product(intx, Tier0ProfilingStartPercentage, 200, \
! "Start profiling in interpreter if the counters exceed tier 3 " \
! "thresholds (tier 4 thresholds with " \
! "CompilationMode=high-only|high-only-quick-internal)" \
! "by the specified percentage") \
! range(0, max_jint) \
! \
! product(uintx, IncreaseFirstTierCompileThresholdAt, 50, \
! "Increase the compile threshold for C1 compilation if the code " \
! "cache is filled by the specified percentage") \
! range(0, 99) \
! \
! product(intx, TieredRateUpdateMinTime, 1, \
! "Minimum rate sampling interval (in milliseconds)") \
! range(0, max_intx) \
! \
! product(intx, TieredRateUpdateMaxTime, 25, \
! "Maximum rate sampling interval (in milliseconds)") \
! range(0, max_intx) \
! \
! product(ccstr, CompilationMode, "default", \
! "Compilation modes: " \
! "default: normal tiered compilation; " \
! "quick-only: C1-only mode; " \
! "high-only: C2/JVMCI-only mode; " \
! "high-only-quick-internal: C2/JVMCI-only mode, " \
! "with JVMCI compiler compiled with C1.") \
! \
! product_pd(bool, TieredCompilation, \
! "Enable tiered compilation") \
! \
! product(bool, PrintTieredEvents, false, \
! "Print tiered events notifications") \
! \
! product_pd(intx, OnStackReplacePercentage, \
! "NON_TIERED number of method invocations/branches (expressed as " \
! "% of CompileThreshold) before (re-)compiling OSR code") \
! constraint(OnStackReplacePercentageConstraintFunc, AfterErgo) \
! \
! product(intx, InterpreterProfilePercentage, 33, \
! "NON_TIERED number of method invocations/branches (expressed as " \
! "% of CompileThreshold) before profiling in the interpreter") \
! range(0, 100) \
! \
! develop(intx, DesiredMethodLimit, 8000, \
! "The desired maximum method size (in bytecodes) after inlining") \
! \
! develop(intx, HugeMethodLimit, 8000, \
! "Don't compile methods larger than this if " \
! "+DontCompileHugeMethods") \
! \
! /* Properties for Java libraries */ \
! \
! product(uint64_t, MaxDirectMemorySize, 0, \
! "Maximum total size of NIO direct-buffer allocations") \
! range(0, max_jlong) \
! \
! /* Flags used for temporary code during development */ \
! \
! diagnostic(bool, UseNewCode, false, \
! "Testing Only: Use the new version while testing") \
! \
! diagnostic(bool, UseNewCode2, false, \
! "Testing Only: Use the new version while testing") \
! \
! diagnostic(bool, UseNewCode3, false, \
! "Testing Only: Use the new version while testing") \
! \
! /* flags for performance data collection */ \
! \
! product(bool, UsePerfData, true, \
! "Flag to disable jvmstat instrumentation for performance testing "\
! "and problem isolation purposes") \
! \
! product(bool, PerfDataSaveToFile, false, \
! "Save PerfData memory to hsperfdata_<pid> file on exit") \
! \
! product(ccstr, PerfDataSaveFile, NULL, \
! "Save PerfData memory to the specified absolute pathname. " \
! "The string %p in the file name (if present) " \
! "will be replaced by pid") \
! \
! product(intx, PerfDataSamplingInterval, 50, \
! "Data sampling interval (in milliseconds)") \
! range(PeriodicTask::min_interval, max_jint) \
! constraint(PerfDataSamplingIntervalFunc, AfterErgo) \
! \
! product(bool, PerfDisableSharedMem, false, \
! "Store performance data in standard memory") \
! \
! product(intx, PerfDataMemorySize, 32*K, \
! "Size of performance data memory region. Will be rounded " \
! "up to a multiple of the native os page size.") \
! range(128, 32*64*K) \
! \
! product(intx, PerfMaxStringConstLength, 1024, \
! "Maximum PerfStringConstant string length before truncation") \
! range(32, 32*K) \
! \
! product(bool, PerfAllowAtExitRegistration, false, \
! "Allow registration of atexit() methods") \
! \
! product(bool, PerfBypassFileSystemCheck, false, \
! "Bypass Win32 file system criteria checks (Windows Only)") \
! \
! product(intx, UnguardOnExecutionViolation, 0, \
! "Unguard page and retry on no-execute fault (Win32 only) " \
! "0=off, 1=conservative, 2=aggressive") \
! range(0, 2) \
! \
! /* Serviceability Support */ \
! \
! product(bool, ManagementServer, false, \
! "Create JMX Management Server") \
! \
! product(bool, DisableAttachMechanism, false, \
! "Disable mechanism that allows tools to attach to this VM") \
! \
! product(bool, StartAttachListener, false, \
! "Always start Attach Listener at VM startup") \
! \
! product(bool, EnableDynamicAgentLoading, true, \
! "Allow tools to load agents with the attach mechanism") \
! \
! manageable(bool, PrintConcurrentLocks, false, \
! "Print java.util.concurrent locks in thread dump") \
! \
! /* Shared spaces */ \
! \
! product(bool, UseSharedSpaces, true, \
! "Use shared spaces for metadata") \
! \
! product(bool, VerifySharedSpaces, false, \
! "Verify integrity of shared spaces") \
! \
! product(bool, RequireSharedSpaces, false, \
! "Require shared spaces for metadata") \
! \
! product(bool, DumpSharedSpaces, false, \
! "Special mode: JVM reads a class list, loads classes, builds " \
! "shared spaces, and dumps the shared spaces to a file to be " \
! "used in future JVM runs") \
! \
! product(bool, DynamicDumpSharedSpaces, false, \
! "Dynamic archive") \
! \
! product(bool, PrintSharedArchiveAndExit, false, \
! "Print shared archive file contents") \
! \
! product(bool, PrintSharedDictionary, false, \
! "If PrintSharedArchiveAndExit is true, also print the shared " \
! "dictionary") \
! \
! product(size_t, SharedBaseAddress, LP64_ONLY(32*G) \
! NOT_LP64(LINUX_ONLY(2*G) NOT_LINUX(0)), \
! "Address to allocate shared memory region for class data") \
! range(0, SIZE_MAX) \
! \
! product(ccstr, SharedArchiveConfigFile, NULL, \
! "Data to add to the CDS archive file") \
! \
! product(uintx, SharedSymbolTableBucketSize, 4, \
! "Average number of symbols per bucket in shared table") \
! range(2, 246) \
! \
! diagnostic(bool, AllowArchivingWithJavaAgent, false, \
! "Allow Java agent to be run with CDS dumping") \
! \
! diagnostic(bool, PrintMethodHandleStubs, false, \
! "Print generated stub code for method handles") \
! \
! develop(bool, TraceMethodHandles, false, \
! "trace internal method handle operations") \
! \
! diagnostic(bool, VerifyMethodHandles, trueInDebug, \
! "perform extra checks when constructing method handles") \
! \
! diagnostic(bool, ShowHiddenFrames, false, \
! "show method handle implementation frames (usually hidden)") \
! \
! experimental(bool, TrustFinalNonStaticFields, false, \
! "trust final non-static declarations for constant folding") \
! \
! diagnostic(bool, FoldStableValues, true, \
! "Optimize loads from stable fields (marked w/ @Stable)") \
! \
! develop(bool, TraceInvokeDynamic, false, \
! "trace internal invoke dynamic operations") \
! \
! diagnostic(int, UseBootstrapCallInfo, 1, \
! "0: when resolving InDy or ConDy, force all BSM arguments to be " \
! "resolved before the bootstrap method is called; 1: when a BSM " \
! "that may accept a BootstrapCallInfo is detected, use that API " \
! "to pass BSM arguments, which allows the BSM to delay their " \
! "resolution; 2+: stress test the BCI API by calling more BSMs " \
! "via that API, instead of with the eagerly-resolved array.") \
! \
! diagnostic(bool, PauseAtStartup, false, \
! "Causes the VM to pause at startup time and wait for the pause " \
! "file to be removed (default: ./vm.paused.<pid>)") \
! \
! diagnostic(ccstr, PauseAtStartupFile, NULL, \
! "The file to create and for whose removal to await when pausing " \
! "at startup. (default: ./vm.paused.<pid>)") \
! \
! diagnostic(bool, PauseAtExit, false, \
! "Pause and wait for keypress on exit if a debugger is attached") \
! \
! product(bool, ExtendedDTraceProbes, false, \
! "Enable performance-impacting dtrace probes") \
! \
! product(bool, DTraceMethodProbes, false, \
! "Enable dtrace probes for method-entry and method-exit") \
! \
! product(bool, DTraceAllocProbes, false, \
! "Enable dtrace probes for object allocation") \
! \
! product(bool, DTraceMonitorProbes, false, \
! "Enable dtrace probes for monitor events") \
! \
! product(bool, RelaxAccessControlCheck, false, \
! "Relax the access control checks in the verifier") \
! \
! product(uintx, StringTableSize, defaultStringTableSize, \
! "Number of buckets in the interned String table " \
! "(will be rounded to nearest higher power of 2)") \
! range(minimumStringTableSize, 16777216ul /* 2^24 */) \
! \
! experimental(uintx, SymbolTableSize, defaultSymbolTableSize, \
! "Number of buckets in the JVM internal Symbol table") \
! range(minimumSymbolTableSize, 16777216ul /* 2^24 */) \
! \
! product(bool, UseStringDeduplication, false, \
! "Use string deduplication") \
! \
! product(uintx, StringDeduplicationAgeThreshold, 3, \
! "A string must reach this age (or be promoted to an old region) " \
! "to be considered for deduplication") \
! range(1, markWord::max_age) \
! \
! diagnostic(bool, StringDeduplicationResizeALot, false, \
! "Force table resize every time the table is scanned") \
! \
! diagnostic(bool, StringDeduplicationRehashALot, false, \
! "Force table rehash every time the table is scanned") \
! \
! diagnostic(bool, WhiteBoxAPI, false, \
! "Enable internal testing APIs") \
! \
! experimental(intx, SurvivorAlignmentInBytes, 0, \
! "Default survivor space alignment in bytes") \
! range(8, 256) \
! constraint(SurvivorAlignmentInBytesConstraintFunc,AfterErgo) \
! \
! product(ccstr, DumpLoadedClassList, NULL, \
! "Dump the names all loaded classes, that could be stored into " \
! "the CDS archive, in the specified file") \
! \
! product(ccstr, SharedClassListFile, NULL, \
! "Override the default CDS class list") \
! \
! product(ccstr, SharedArchiveFile, NULL, \
! "Override the default location of the CDS archive file") \
! \
! product(ccstr, ArchiveClassesAtExit, NULL, \
! "The path and name of the dynamic archive file") \
! \
! product(ccstr, ExtraSharedClassListFile, NULL, \
! "Extra classlist for building the CDS archive file") \
! \
! diagnostic(intx, ArchiveRelocationMode, 0, \
! "(0) first map at preferred address, and if " \
! "unsuccessful, map at alternative address (default); " \
! "(1) always map at alternative address; " \
! "(2) always map at preferred address, and if unsuccessful, " \
! "do not map the archive") \
! range(0, 2) \
! \
! experimental(size_t, ArrayAllocatorMallocLimit, \
! SOLARIS_ONLY(64*K) NOT_SOLARIS((size_t)-1), \
! "Allocation less than this value will be allocated " \
! "using malloc. Larger allocations will use mmap.") \
! \
! experimental(bool, AlwaysAtomicAccesses, false, \
! "Accesses to all variables should always be atomic") \
! \
! diagnostic(bool, UseUnalignedAccesses, false, \
! "Use unaligned memory accesses in Unsafe") \
! \
! product_pd(bool, PreserveFramePointer, \
! "Use the FP register for holding the frame pointer " \
! "and not as a general purpose register.") \
! \
! diagnostic(bool, CheckIntrinsics, true, \
! "When a class C is loaded, check that " \
! "(1) all intrinsics defined by the VM for class C are present "\
! "in the loaded class file and are marked with the " \
! "@HotSpotIntrinsicCandidate annotation, that " \
! "(2) there is an intrinsic registered for all loaded methods " \
! "that are annotated with the @HotSpotIntrinsicCandidate " \
! "annotation, and that " \
! "(3) no orphan methods exist for class C (i.e., methods for " \
! "which the VM declares an intrinsic but that are not declared "\
! "in the loaded class C. " \
! "Check (3) is available only in debug builds.") \
! \
! diagnostic_pd(intx, InitArrayShortSize, \
! "Threshold small size (in bytes) for clearing arrays. " \
! "Anything this size or smaller may get converted to discrete " \
! "scalar stores.") \
! range(0, max_intx) \
! constraint(InitArrayShortSizeConstraintFunc, AfterErgo) \
! \
! diagnostic(bool, CompilerDirectivesIgnoreCompileCommands, false, \
! "Disable backwards compatibility for compile commands.") \
! \
! diagnostic(bool, CompilerDirectivesPrint, false, \
! "Print compiler directives on installation.") \
! diagnostic(int, CompilerDirectivesLimit, 50, \
! "Limit on number of compiler directives.") \
! \
! product(ccstr, AllocateHeapAt, NULL, \
! "Path to the directoy where a temporary file will be created " \
! "to use as the backing store for Java Heap.") \
! \
! experimental(ccstr, AllocateOldGenAt, NULL, \
! "Path to the directoy where a temporary file will be " \
! "created to use as the backing store for old generation." \
! "File of size Xmx is pre-allocated for performance reason, so" \
! "we need that much space available") \
! \
! develop(int, VerifyMetaspaceInterval, DEBUG_ONLY(500) NOT_DEBUG(0), \
! "Run periodic metaspace verifications (0 - none, " \
! "1 - always, >1 every nth interval)") \
! \
! diagnostic(bool, ShowRegistersOnAssert, true, \
! "On internal errors, include registers in error report.") \
! \
! diagnostic(bool, UseSwitchProfiling, true, \
! "leverage profiling for table/lookup switch") \
! \
! develop(bool, TraceMemoryWriteback, false, \
! "Trace memory writeback operations") \
! \
! JFR_ONLY(product(bool, FlightRecorder, false, \
! "(Deprecated) Enable Flight Recorder")) \
! \
! JFR_ONLY(product(ccstr, FlightRecorderOptions, NULL, \
! "Flight Recorder options")) \
! \
! JFR_ONLY(product(ccstr, StartFlightRecording, NULL, \
! "Start flight recording with options")) \
! \
! experimental(bool, UseFastUnorderedTimeStamps, false, \
! "Use platform unstable time where supported for timestamps only") \
! \
! product(bool, UseNewFieldLayout, true, \
! "(Deprecated) Use new algorithm to compute field layouts") \
! \
! product(bool, UseEmptySlotsInSupers, true, \
! "Allow allocating fields in empty slots of super-classes") \
! \
!
!
! // Interface macros
! #define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name;
! #define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name;
! #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name;
! #define DECLARE_PD_DIAGNOSTIC_FLAG(type, name, doc) extern "C" type name;
! #define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name;
! #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name;
! #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name;
! #ifdef PRODUCT
! #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) const type name = value;
! #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) const type name = pd_##name;
! #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) const type name = value;
! #else
! #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name;
! #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name;
! #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name;
! #endif // PRODUCT
! // Special LP64 flags, product only needed for now.
! #ifdef _LP64
! #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name;
! #else
! #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value;
! #endif // _LP64
! ALL_FLAGS(DECLARE_DEVELOPER_FLAG, \
! DECLARE_PD_DEVELOPER_FLAG, \
! DECLARE_PRODUCT_FLAG, \
! DECLARE_PD_PRODUCT_FLAG, \
! DECLARE_DIAGNOSTIC_FLAG, \
! DECLARE_PD_DIAGNOSTIC_FLAG, \
! DECLARE_EXPERIMENTAL_FLAG, \
! DECLARE_NOTPRODUCT_FLAG, \
! DECLARE_MANAGEABLE_FLAG, \
! DECLARE_PRODUCT_RW_FLAG, \
! DECLARE_LP64_PRODUCT_FLAG, \
! IGNORE_RANGE, \
! IGNORE_CONSTRAINT)
#endif // SHARE_RUNTIME_GLOBALS_HPP
--- 148,2574 ----
// - the flag is defined in a CCC as an external exported interface.
// - the VM implementation supports dynamic setting of the flag.
// This implies that the VM must *always* query the flag variable
// and not reuse state related to the flag state at any given time.
// - you want the flag to be queried programmatically by the customers.
+
+
+ // Additional flag attributes
//
! // In addition to the 3 bits described above, more can be specified. These
! // usually only affects the printing of the flag (see java -XX:PrintFlagsFinal).
! // However, you can also write code to process a certain group of
! // flags. See JVMCIGlobals::check_jvmci_flags_are_consistent() for an example.
//
! // JVMFlag::PLATFORM_DEPENDENT
! // JVMFlag::C1
! // JVMFlag::C2
! // JVMFlag::ARCH
! // JVMFlag::JVMCI
//
! // To add these extra bits to a group of flags, you can use the FLAG_COMMON_ATTRS
! // macro. See c2_globals.cpp for an example.
!
// Default and minimum StringTable and SymbolTable size values
// Must be powers of 2
const size_t defaultStringTableSize = NOT_LP64(1024) LP64_ONLY(65536);
const size_t minimumStringTableSize = 128;
const size_t defaultSymbolTableSize = 32768; // 2^15
const size_t minimumSymbolTableSize = 1024;
! #include "runtime/flags/jvmFlag.hpp"
! NOTPROD_FLAG(bool, CheckCompressedOops, true, JVMFlag::DEFAULT,
! "Generate checks in encoding/decoding code in debug VM");
!
! PRODUCT_FLAG(uintx, HeapSearchSteps, 3 PPC64_ONLY(+17), JVMFlag::RANGE,
! "Heap allocation steps through preferred address regions to find"
! " where it can allocate the heap. Number of steps to take per "
! "region.");
! FLAG_RANGE( HeapSearchSteps, 1, max_uintx);
!
! DEVELOP_FLAG(bool, CleanChunkPoolAsync, true, JVMFlag::DEFAULT,
! "Clean the chunk pool asynchronously");
!
! PRODUCT_FLAG(uint, HandshakeTimeout, 0, JVMFlag::DIAGNOSTIC,
! "If nonzero set a timeout in milliseconds for handshakes");
!
! PRODUCT_FLAG(bool, AlwaysSafeConstructors, false, JVMFlag::EXPERIMENTAL,
! "Force safe construction, as if all fields are final.");
!
! PRODUCT_FLAG(bool, UnlockDiagnosticVMOptions, trueInDebug, JVMFlag::DIAGNOSTIC,
! "Enable normal processing of flags relating to field diagnostics");
!
! PRODUCT_FLAG(bool, UnlockExperimentalVMOptions, false, JVMFlag::EXPERIMENTAL,
! "Enable normal processing of flags relating to experimental "
! "features");
!
! PRODUCT_FLAG(bool, JavaMonitorsInStackTrace, true, JVMFlag::DEFAULT,
! "Print information about Java monitor locks when the stacks are"
! "dumped");
!
! PRODUCT_FLAG_PD(bool, UseLargePages, JVMFlag::DEFAULT,
! "Use large page memory");
!
! PRODUCT_FLAG_PD(bool, UseLargePagesIndividualAllocation, JVMFlag::DEFAULT,
! "Allocate large pages individually for better affinity");
!
! DEVELOP_FLAG(bool, LargePagesIndividualAllocationInjectError, false, JVMFlag::DEFAULT,
! "Fail large pages individual allocation");
!
! PRODUCT_FLAG(bool, UseLargePagesInMetaspace, false, JVMFlag::DEFAULT,
! "Use large page memory in metaspace. "
! "Only used if UseLargePages is enabled.");
!
! PRODUCT_FLAG(bool, UseNUMA, false, JVMFlag::DEFAULT,
! "Use NUMA if available");
!
! PRODUCT_FLAG(bool, UseNUMAInterleaving, false, JVMFlag::DEFAULT,
! "Interleave memory across NUMA nodes if available");
!
! PRODUCT_FLAG(size_t, NUMAInterleaveGranularity, 2*M, JVMFlag::RANGE,
! "Granularity to use for NUMA interleaving on Windows OS");
! FLAG_CUSTOM_RANGE( NUMAInterleaveGranularity, VMAllocationGranularity);
!
! PRODUCT_FLAG(bool, ForceNUMA, false, JVMFlag::DEFAULT,
! "Force NUMA optimizations on single-node/UMA systems");
!
! PRODUCT_FLAG(uintx, NUMAChunkResizeWeight, 20, JVMFlag::RANGE,
! "Percentage (0-100) used to weight the current sample when "
! "computing exponentially decaying average for "
! "AdaptiveNUMAChunkSizing");
! FLAG_RANGE( NUMAChunkResizeWeight, 0, 100);
!
! PRODUCT_FLAG(size_t, NUMASpaceResizeRate, 1*G, JVMFlag::RANGE,
! "Do not reallocate more than this amount per collection");
! FLAG_RANGE( NUMASpaceResizeRate, 0, max_uintx);
!
! PRODUCT_FLAG(bool, UseAdaptiveNUMAChunkSizing, true, JVMFlag::DEFAULT,
! "Enable adaptive chunk sizing for NUMA");
!
! PRODUCT_FLAG(bool, NUMAStats, false, JVMFlag::DEFAULT,
! "Print NUMA stats in detailed heap information");
!
! PRODUCT_FLAG(uintx, NUMAPageScanRate, 256, JVMFlag::RANGE,
! "Maximum number of pages to include in the page scan procedure");
! FLAG_RANGE( NUMAPageScanRate, 0, max_uintx);
!
! PRODUCT_FLAG(bool, UseAES, false, JVMFlag::DEFAULT,
! "Control whether AES instructions are used when available");
!
! PRODUCT_FLAG(bool, UseFMA, false, JVMFlag::DEFAULT,
! "Control whether FMA instructions are used when available");
!
! PRODUCT_FLAG(bool, UseSHA, false, JVMFlag::DEFAULT,
! "Control whether SHA instructions are used when available");
!
! PRODUCT_FLAG(bool, UseGHASHIntrinsics, false, JVMFlag::DIAGNOSTIC,
! "Use intrinsics for GHASH versions of crypto");
!
! PRODUCT_FLAG(bool, UseBASE64Intrinsics, false, JVMFlag::DEFAULT,
! "Use intrinsics for java.util.Base64");
!
! PRODUCT_FLAG(size_t, LargePageSizeInBytes, 0, JVMFlag::RANGE,
! "Large page size (0 to let VM choose the page size)");
! FLAG_RANGE( LargePageSizeInBytes, 0, max_uintx);
!
! PRODUCT_FLAG(size_t, LargePageHeapSizeThreshold, 128*M, JVMFlag::RANGE,
! "Use large pages if maximum heap is at least this big");
! FLAG_RANGE( LargePageHeapSizeThreshold, 0, max_uintx);
!
! PRODUCT_FLAG(bool, ForceTimeHighResolution, false, JVMFlag::DEFAULT,
! "Using high time resolution (for Win32 only)");
!
! DEVELOP_FLAG(bool, TracePcPatching, false, JVMFlag::DEFAULT,
! "Trace usage of frame::patch_pc");
!
! DEVELOP_FLAG(bool, TraceRelocator, false, JVMFlag::DEFAULT,
! "Trace the bytecode relocator");
!
! DEVELOP_FLAG(bool, TraceLongCompiles, false, JVMFlag::DEFAULT,
! "Print out every time compilation is longer than "
! "a given threshold");
!
! PRODUCT_FLAG(bool, SafepointALot, false, JVMFlag::DIAGNOSTIC,
! "Generate a lot of safepoints. This works with "
! "GuaranteedSafepointInterval");
!
! PRODUCT_FLAG(bool, HandshakeALot, false, JVMFlag::DIAGNOSTIC,
! "Generate a lot of handshakes. This works with "
! "GuaranteedSafepointInterval");
!
! PRODUCT_FLAG_PD(bool, BackgroundCompilation, JVMFlag::DEFAULT,
! "A thread requesting compilation is not blocked during "
! "compilation");
!
! PRODUCT_FLAG(bool, PrintVMQWaitTime, false, JVMFlag::DEFAULT,
! "(Deprecated) Print out the waiting time in VM operation queue");
!
! PRODUCT_FLAG(bool, MethodFlushing, true, JVMFlag::DEFAULT,
! "Reclamation of zombie and not-entrant methods");
!
! DEVELOP_FLAG(bool, VerifyStack, false, JVMFlag::DEFAULT,
! "Verify stack of each thread when it is entering a runtime call");
!
! PRODUCT_FLAG(bool, ForceUnreachable, false, JVMFlag::DIAGNOSTIC,
! "Make all non code cache addresses to be unreachable by "
! "forcing use of 64bit literal fixups");
!
! NOTPROD_FLAG(bool, StressDerivedPointers, false, JVMFlag::DEFAULT,
! "Force scavenge when a derived pointer is detected on stack "
! "after rtm call");
!
! DEVELOP_FLAG(bool, TraceDerivedPointers, false, JVMFlag::DEFAULT,
! "Trace traversal of derived pointers on stack");
!
! NOTPROD_FLAG(bool, TraceCodeBlobStacks, false, JVMFlag::DEFAULT,
! "Trace stack-walk of codeblobs");
!
! NOTPROD_FLAG(bool, PrintRewrites, false, JVMFlag::DEFAULT,
! "Print methods that are being rewritten");
!
! PRODUCT_FLAG(bool, UseInlineCaches, true, JVMFlag::DEFAULT,
! "Use Inline Caches for virtual calls ");
!
! PRODUCT_FLAG(bool, InlineArrayCopy, true, JVMFlag::DIAGNOSTIC,
! "Inline arraycopy native that is known to be part of "
! "base library DLL");
!
! PRODUCT_FLAG(bool, InlineObjectHash, true, JVMFlag::DIAGNOSTIC,
! "Inline Object::hashCode() native that is known to be part "
! "of base library DLL");
!
! PRODUCT_FLAG(bool, InlineNatives, true, JVMFlag::DIAGNOSTIC,
! "Inline natives that are known to be part of base library DLL");
!
! PRODUCT_FLAG(bool, InlineMathNatives, true, JVMFlag::DIAGNOSTIC,
! "Inline SinD, CosD, etc.");
!
! PRODUCT_FLAG(bool, InlineClassNatives, true, JVMFlag::DIAGNOSTIC,
! "Inline Class.isInstance, etc");
!
! PRODUCT_FLAG(bool, InlineThreadNatives, true, JVMFlag::DIAGNOSTIC,
! "Inline Thread.currentThread, etc");
!
! PRODUCT_FLAG(bool, InlineUnsafeOps, true, JVMFlag::DIAGNOSTIC,
! "Inline memory ops (native methods) from Unsafe");
!
! PRODUCT_FLAG(bool, CriticalJNINatives, true, JVMFlag::DEFAULT,
! "Check for critical JNI entry points");
!
! NOTPROD_FLAG(bool, StressCriticalJNINatives, false, JVMFlag::DEFAULT,
! "Exercise register saving code in critical natives");
!
! PRODUCT_FLAG(bool, UseAESIntrinsics, false, JVMFlag::DIAGNOSTIC,
! "Use intrinsics for AES versions of crypto");
!
! PRODUCT_FLAG(bool, UseAESCTRIntrinsics, false, JVMFlag::DIAGNOSTIC,
! "Use intrinsics for the paralleled version of AES/CTR crypto");
!
! PRODUCT_FLAG(bool, UseSHA1Intrinsics, false, JVMFlag::DIAGNOSTIC,
! "Use intrinsics for SHA-1 crypto hash function. "
! "Requires that UseSHA is enabled.");
!
! PRODUCT_FLAG(bool, UseSHA256Intrinsics, false, JVMFlag::DIAGNOSTIC,
! "Use intrinsics for SHA-224 and SHA-256 crypto hash functions. "
! "Requires that UseSHA is enabled.");
!
! PRODUCT_FLAG(bool, UseSHA512Intrinsics, false, JVMFlag::DIAGNOSTIC,
! "Use intrinsics for SHA-384 and SHA-512 crypto hash functions. "
! "Requires that UseSHA is enabled.");
!
! PRODUCT_FLAG(bool, UseCRC32Intrinsics, false, JVMFlag::DIAGNOSTIC,
! "use intrinsics for java.util.zip.CRC32");
!
! PRODUCT_FLAG(bool, UseCRC32CIntrinsics, false, JVMFlag::DIAGNOSTIC,
! "use intrinsics for java.util.zip.CRC32C");
!
! PRODUCT_FLAG(bool, UseAdler32Intrinsics, false, JVMFlag::DIAGNOSTIC,
! "use intrinsics for java.util.zip.Adler32");
!
! PRODUCT_FLAG(bool, UseVectorizedMismatchIntrinsic, false, JVMFlag::DIAGNOSTIC,
! "Enables intrinsification of ArraysSupport.vectorizedMismatch()");
!
! PRODUCT_FLAG(ccstr, DisableIntrinsic, "", JVMFlag::DIAGNOSTIC | JVMFlag::STRINGLIST,
! "do not expand intrinsics whose (internal) names appear here");
!
! DEVELOP_FLAG(bool, TraceCallFixup, false, JVMFlag::DEFAULT,
! "Trace all call fixups");
!
! DEVELOP_FLAG(bool, DeoptimizeALot, false, JVMFlag::DEFAULT,
! "Deoptimize at every exit from the runtime system");
!
! NOTPROD_FLAG(ccstr, DeoptimizeOnlyAt, "", JVMFlag::STRINGLIST,
! "A comma separated list of bcis to deoptimize at");
!
! DEVELOP_FLAG(bool, DeoptimizeRandom, false, JVMFlag::DEFAULT,
! "Deoptimize random frames on random exit from the runtime system");
!
! NOTPROD_FLAG(bool, ZombieALot, false, JVMFlag::DEFAULT,
! "Create zombies (non-entrant) at exit from the runtime system");
!
! NOTPROD_FLAG(bool, WalkStackALot, false, JVMFlag::DEFAULT,
! "Trace stack (no print) at every exit from the runtime system");
!
! PRODUCT_FLAG(bool, Debugging, false, JVMFlag::DEFAULT,
! "Set when executing debug methods in debug.cpp "
! "(to prevent triggering assertions)");
!
! NOTPROD_FLAG(bool, VerifyLastFrame, false, JVMFlag::DEFAULT,
! "Verify oops on last frame on entry to VM");
!
! PRODUCT_FLAG(bool, SafepointTimeout, false, JVMFlag::DEFAULT,
! "Time out and warn or fail after SafepointTimeoutDelay "
! "milliseconds if failed to reach safepoint");
!
! PRODUCT_FLAG(bool, AbortVMOnSafepointTimeout, false, JVMFlag::DIAGNOSTIC,
! "Abort upon failure to reach safepoint (see SafepointTimeout)");
!
! PRODUCT_FLAG(bool, AbortVMOnVMOperationTimeout, false, JVMFlag::DIAGNOSTIC,
! "Abort upon failure to complete VM operation promptly");
!
! PRODUCT_FLAG(intx, AbortVMOnVMOperationTimeoutDelay, 1000, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "Delay in milliseconds for option AbortVMOnVMOperationTimeout");
! FLAG_RANGE( AbortVMOnVMOperationTimeoutDelay, 0, max_intx);
!
!
! // 50 retries * (5 * current_retry_count) millis = ~6.375 seconds
! // typically, at most a few retries are needed
! PRODUCT_FLAG(intx, SuspendRetryCount, 50, JVMFlag::RANGE,
! "Maximum retry count for an external suspend request");
! FLAG_RANGE( SuspendRetryCount, 0, max_intx);
!
! PRODUCT_FLAG(intx, SuspendRetryDelay, 5, JVMFlag::RANGE,
! "Milliseconds to delay per retry (* current_retry_count)");
! FLAG_RANGE( SuspendRetryDelay, 0, max_intx);
!
! PRODUCT_FLAG(bool, AssertOnSuspendWaitFailure, false, JVMFlag::DEFAULT,
! "Assert/Guarantee on external suspend wait failure");
!
! PRODUCT_FLAG(bool, TraceSuspendWaitFailures, false, JVMFlag::DEFAULT,
! "Trace external suspend wait failures");
!
! PRODUCT_FLAG(bool, MaxFDLimit, true, JVMFlag::DEFAULT,
! "Bump the number of file descriptors to maximum in Solaris");
!
! PRODUCT_FLAG(bool, LogEvents, true, JVMFlag::DIAGNOSTIC,
! "Enable the various ring buffer event logs");
!
! PRODUCT_FLAG(uintx, LogEventsBufferEntries, 20, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "Number of ring buffer event logs");
! FLAG_RANGE( LogEventsBufferEntries, 1, NOT_LP64(1*K) LP64_ONLY(1*M));
!
! PRODUCT_FLAG(bool, BytecodeVerificationRemote, true, JVMFlag::DIAGNOSTIC,
! "Enable the Java bytecode verifier for remote classes");
!
! PRODUCT_FLAG(bool, BytecodeVerificationLocal, false, JVMFlag::DIAGNOSTIC,
! "Enable the Java bytecode verifier for local classes");
!
! DEVELOP_FLAG(bool, ForceFloatExceptions, trueInDebug, JVMFlag::DEFAULT,
! "Force exceptions on FP stack under/overflow");
!
! DEVELOP_FLAG(bool, VerifyStackAtCalls, false, JVMFlag::DEFAULT,
! "Verify that the stack pointer is unchanged after calls");
!
! DEVELOP_FLAG(bool, TraceJavaAssertions, false, JVMFlag::DEFAULT,
! "Trace java language assertions");
!
! NOTPROD_FLAG(bool, VerifyCodeCache, false, JVMFlag::DEFAULT,
! "Verify code cache on memory allocation/deallocation");
!
! DEVELOP_FLAG(bool, UseMallocOnly, false, JVMFlag::DEFAULT,
! "Use only malloc/free for allocation (no resource area/arena)");
!
! DEVELOP_FLAG(bool, ZapResourceArea, trueInDebug, JVMFlag::DEFAULT,
! "Zap freed resource/arena space with 0xABABABAB");
!
! NOTPROD_FLAG(bool, ZapVMHandleArea, trueInDebug, JVMFlag::DEFAULT,
! "Zap freed VM handle space with 0xBCBCBCBC");
!
! NOTPROD_FLAG(bool, ZapStackSegments, trueInDebug, JVMFlag::DEFAULT,
! "Zap allocated/freed stack segments with 0xFADFADED");
!
! DEVELOP_FLAG(bool, ZapUnusedHeapArea, trueInDebug, JVMFlag::DEFAULT,
! "Zap unused heap space with 0xBAADBABE");
!
! DEVELOP_FLAG(bool, CheckZapUnusedHeapArea, false, JVMFlag::DEFAULT,
! "Check zapping of unused heap space");
!
! DEVELOP_FLAG(bool, ZapFillerObjects, trueInDebug, JVMFlag::DEFAULT,
! "Zap filler objects with 0xDEAFBABE");
!
! DEVELOP_FLAG(bool, PrintVMMessages, true, JVMFlag::DEFAULT,
! "Print VM messages on console");
!
! NOTPROD_FLAG(uintx, ErrorHandlerTest, 0, JVMFlag::DEFAULT,
! "If > 0, provokes an error after VM initialization; the value "
! "determines which error to provoke. See test_error_handler() "
! "in vmError.cpp.");
!
! NOTPROD_FLAG(uintx, TestCrashInErrorHandler, 0, JVMFlag::DEFAULT,
! "If > 0, provokes an error inside VM error handler (a secondary "
! "crash). see test_error_handler() in vmError.cpp");
!
! NOTPROD_FLAG(bool, TestSafeFetchInErrorHandler, false, JVMFlag::DEFAULT,
! "If true, tests SafeFetch inside error handler.");
!
! DEVELOP_FLAG(bool, TestUnresponsiveErrorHandler, false, JVMFlag::DEFAULT,
! "If true, simulates an unresponsive error handler.");
!
! DEVELOP_FLAG(bool, Verbose, false, JVMFlag::DEFAULT,
! "Print additional debugging information from other modes");
!
! DEVELOP_FLAG(bool, PrintMiscellaneous, false, JVMFlag::DEFAULT,
! "Print uncategorized debugging information (requires +Verbose)");
!
! DEVELOP_FLAG(bool, WizardMode, false, JVMFlag::DEFAULT,
! "Print much more debugging information");
!
! PRODUCT_FLAG(bool, ShowMessageBoxOnError, false, JVMFlag::DEFAULT,
! "Keep process alive on VM fatal error");
!
! PRODUCT_FLAG(bool, CreateCoredumpOnCrash, true, JVMFlag::DEFAULT,
! "Create core/mini dump on VM fatal error");
!
! PRODUCT_FLAG(uint64_t, ErrorLogTimeout, 2 * 60, JVMFlag::RANGE,
! "Timeout, in seconds, to limit the time spent on writing an "
! "error log in case of a crash.");
! FLAG_RANGE( ErrorLogTimeout, 0, (uint64_t)max_jlong/1000);
!
! PRODUCT_FLAG_PD(bool, UseOSErrorReporting, JVMFlag::DEFAULT,
! "Let VM fatal error propagate to the OS (ie. WER on Windows)");
!
! PRODUCT_FLAG(bool, SuppressFatalErrorMessage, false, JVMFlag::DEFAULT,
! "Report NO fatal error message (avoid deadlock)");
!
! PRODUCT_FLAG(ccstr, OnError, "", JVMFlag::STRINGLIST,
! "Run user-defined commands on fatal error; see VMError.cpp "
! "for examples");
!
! PRODUCT_FLAG(ccstr, OnOutOfMemoryError, "", JVMFlag::STRINGLIST,
! "Run user-defined commands on first java.lang.OutOfMemoryError");
!
! PRODUCT_FLAG(bool, HeapDumpBeforeFullGC, false, JVMFlag::MANAGEABLE,
! "Dump heap to file before any major stop-the-world GC");
!
! PRODUCT_FLAG(bool, HeapDumpAfterFullGC, false, JVMFlag::MANAGEABLE,
! "Dump heap to file after any major stop-the-world GC");
!
! PRODUCT_FLAG(bool, HeapDumpOnOutOfMemoryError, false, JVMFlag::MANAGEABLE,
! "Dump heap to file when java.lang.OutOfMemoryError is thrown");
!
! PRODUCT_FLAG(ccstr, HeapDumpPath, NULL, JVMFlag::MANAGEABLE,
! "When HeapDumpOnOutOfMemoryError is on, the path (filename or "
! "directory) of the dump file (defaults to java_pid<pid>.hprof "
! "in the working directory)");
!
! DEVELOP_FLAG(bool, BreakAtWarning, false, JVMFlag::DEFAULT,
! "Execute breakpoint upon encountering VM warning");
!
! PRODUCT_FLAG(ccstr, NativeMemoryTracking, "off", JVMFlag::DEFAULT,
! "Native memory tracking options");
!
! PRODUCT_FLAG(bool, PrintNMTStatistics, false, JVMFlag::DIAGNOSTIC,
! "Print native memory tracking summary data if it is on");
!
! PRODUCT_FLAG(bool, LogCompilation, false, JVMFlag::DIAGNOSTIC,
! "Log compilation activity in detail to LogFile");
!
! PRODUCT_FLAG(bool, PrintCompilation, false, JVMFlag::DEFAULT,
! "Print compilations");
!
! PRODUCT_FLAG(bool, PrintExtendedThreadInfo, false, JVMFlag::DEFAULT,
! "Print more information in thread dump");
!
! PRODUCT_FLAG(intx, ScavengeRootsInCode, 2, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "0: do not allow scavengable oops in the code cache; "
! "1: allow scavenging from the code cache; "
! "2: emit as many constants as the compiler can see");
! FLAG_RANGE( ScavengeRootsInCode, 0, 2);
!
! PRODUCT_FLAG(bool, AlwaysRestoreFPU, false, JVMFlag::DEFAULT,
! "Restore the FPU control word after every JNI call (expensive)");
!
! PRODUCT_FLAG(bool, PrintCompilation2, false, JVMFlag::DIAGNOSTIC,
! "Print additional statistics per compilation");
!
! PRODUCT_FLAG(bool, PrintAdapterHandlers, false, JVMFlag::DIAGNOSTIC,
! "Print code generated for i2c/c2i adapters");
!
! PRODUCT_FLAG(bool, VerifyAdapterCalls, trueInDebug, JVMFlag::DIAGNOSTIC,
! "Verify that i2c/c2i adapters are called properly");
!
! DEVELOP_FLAG(bool, VerifyAdapterSharing, false, JVMFlag::DEFAULT,
! "Verify that the code for shared adapters is the equivalent");
!
! PRODUCT_FLAG(bool, PrintAssembly, false, JVMFlag::DIAGNOSTIC,
! "Print assembly code (using external disassembler.so)");
!
! PRODUCT_FLAG(ccstr, PrintAssemblyOptions, NULL, JVMFlag::DIAGNOSTIC,
! "Print options string passed to disassembler.so");
!
! NOTPROD_FLAG(bool, PrintNMethodStatistics, false, JVMFlag::DEFAULT,
! "Print a summary statistic for the generated nmethods");
!
! PRODUCT_FLAG(bool, PrintNMethods, false, JVMFlag::DIAGNOSTIC,
! "Print assembly code for nmethods when generated");
!
! PRODUCT_FLAG(bool, PrintNativeNMethods, false, JVMFlag::DIAGNOSTIC,
! "Print assembly code for native nmethods when generated");
!
! DEVELOP_FLAG(bool, PrintDebugInfo, false, JVMFlag::DEFAULT,
! "Print debug information for all nmethods when generated");
!
! DEVELOP_FLAG(bool, PrintRelocations, false, JVMFlag::DEFAULT,
! "Print relocation information for all nmethods when generated");
!
! DEVELOP_FLAG(bool, PrintDependencies, false, JVMFlag::DEFAULT,
! "Print dependency information for all nmethods when generated");
!
! DEVELOP_FLAG(bool, PrintExceptionHandlers, false, JVMFlag::DEFAULT,
! "Print exception handler tables for all nmethods when generated");
!
! DEVELOP_FLAG(bool, StressCompiledExceptionHandlers, false, JVMFlag::DEFAULT,
! "Exercise compiled exception handlers");
!
! DEVELOP_FLAG(bool, InterceptOSException, false, JVMFlag::DEFAULT,
! "Start debugger when an implicit OS (e.g. NULL) "
! "exception happens");
!
! PRODUCT_FLAG(bool, PrintCodeCache, false, JVMFlag::DEFAULT,
! "Print the code cache memory usage when exiting");
!
! DEVELOP_FLAG(bool, PrintCodeCache2, false, JVMFlag::DEFAULT,
! "Print detailed usage information on the code cache when exiting");
!
! PRODUCT_FLAG(bool, PrintCodeCacheOnCompilation, false, JVMFlag::DEFAULT,
! "Print the code cache memory usage each time a method is "
! "compiled");
!
! PRODUCT_FLAG(bool, PrintCodeHeapAnalytics, false, JVMFlag::DIAGNOSTIC,
! "Print code heap usage statistics on exit and on full condition");
!
! PRODUCT_FLAG(bool, PrintStubCode, false, JVMFlag::DIAGNOSTIC,
! "Print generated stub code");
!
! PRODUCT_FLAG(bool, StackTraceInThrowable, true, JVMFlag::DEFAULT,
! "Collect backtrace in throwable when exception happens");
!
! PRODUCT_FLAG(bool, OmitStackTraceInFastThrow, true, JVMFlag::DEFAULT,
! "Omit backtraces for some 'hot' exceptions in optimized code");
!
! PRODUCT_FLAG(bool, ShowCodeDetailsInExceptionMessages, false, JVMFlag::MANAGEABLE,
! "Show exception messages from RuntimeExceptions that contain "
! "snippets of the failing code. Disable this to improve privacy.");
!
! PRODUCT_FLAG(bool, PrintWarnings, true, JVMFlag::DEFAULT,
! "Print JVM warnings to output stream");
!
! NOTPROD_FLAG(uintx, WarnOnStalledSpinLock, 0, JVMFlag::DEFAULT,
! "Print warnings for stalled SpinLocks");
!
! PRODUCT_FLAG(bool, RegisterFinalizersAtInit, true, JVMFlag::DEFAULT,
! "Register finalizable objects at end of Object.<init> or "
! "after allocation");
!
! DEVELOP_FLAG(bool, RegisterReferences, true, JVMFlag::DEFAULT,
! "Tell whether the VM should register soft/weak/final/phantom "
! "references");
!
! DEVELOP_FLAG(bool, IgnoreRewrites, false, JVMFlag::DEFAULT,
! "Suppress rewrites of bytecodes in the oopmap generator. "
! "This is unsafe!");
!
! DEVELOP_FLAG(bool, PrintCodeCacheExtension, false, JVMFlag::DEFAULT,
! "Print extension of code cache");
!
! DEVELOP_FLAG(bool, UsePrivilegedStack, true, JVMFlag::DEFAULT,
! "Enable the security JVM functions");
!
! DEVELOP_FLAG(bool, ProtectionDomainVerification, true, JVMFlag::DEFAULT,
! "Verify protection domain before resolution in system dictionary");
!
! PRODUCT_FLAG(bool, ClassUnloading, true, JVMFlag::DEFAULT,
! "Do unloading of classes");
!
! PRODUCT_FLAG(bool, ClassUnloadingWithConcurrentMark, true, JVMFlag::DEFAULT,
! "Do unloading of classes with a concurrent marking cycle");
!
! DEVELOP_FLAG(bool, DisableStartThread, false, JVMFlag::DEFAULT,
! "Disable starting of additional Java threads "
! "(for debugging only)");
!
! DEVELOP_FLAG(bool, MemProfiling, false, JVMFlag::DEFAULT,
! "Write memory usage profiling to log file");
!
! DEVELOP_FLAG(bool, PrintSystemDictionaryAtExit, false, JVMFlag::DEFAULT,
! "Print the system dictionary at exit");
!
! PRODUCT_FLAG(bool, DynamicallyResizeSystemDictionaries, true, JVMFlag::DIAGNOSTIC,
! "Dynamically resize system dictionaries as needed");
!
! PRODUCT_FLAG(bool, AlwaysLockClassLoader, false, JVMFlag::DEFAULT,
! "Require the VM to acquire the class loader lock before calling "
! "loadClass() even for class loaders registering "
! "as parallel capable");
!
! PRODUCT_FLAG(bool, AllowParallelDefineClass, false, JVMFlag::DEFAULT,
! "Allow parallel defineClass requests for class loaders "
! "registering as parallel capable");
!
! PRODUCT_FLAG_PD(bool, DontYieldALot, JVMFlag::DEFAULT,
! "Throw away obvious excess yield calls");
!
! DEVELOP_FLAG(bool, UseDetachedThreads, true, JVMFlag::DEFAULT,
! "Use detached threads that are recycled upon termination "
! "(for Solaris only)");
!
! PRODUCT_FLAG(bool, DisablePrimordialThreadGuardPages, false, JVMFlag::EXPERIMENTAL,
! "Disable the use of stack guard pages if the JVM is loaded "
! "on the primordial process thread");
!
! PRODUCT_FLAG(bool, UseLWPSynchronization, true, JVMFlag::DEFAULT,
! "Use LWP-based instead of libthread-based synchronization "
! "(SPARC only)");
!
! PRODUCT_FLAG(intx, MonitorBound, 0, JVMFlag::RANGE,
! "(Deprecated) Bound Monitor population");
! FLAG_RANGE( MonitorBound, 0, max_jint);
!
! PRODUCT_FLAG(intx, MonitorUsedDeflationThreshold, 90, JVMFlag::EXPERIMENTAL | JVMFlag::RANGE,
! "Percentage of used monitors before triggering cleanup "
! "safepoint which deflates monitors (0 is off). "
! "The check is performed on GuaranteedSafepointInterval.");
! FLAG_RANGE( MonitorUsedDeflationThreshold, 0, 100);
!
! PRODUCT_FLAG(intx, hashCode, 5, JVMFlag::EXPERIMENTAL,
! "(Unstable) select hashCode generation algorithm");
!
! PRODUCT_FLAG(bool, FilterSpuriousWakeups, true, JVMFlag::DEFAULT,
! "When true prevents OS-level spurious, or premature, wakeups "
! "from Object.wait (Ignored for Windows)");
!
! DEVELOP_FLAG(bool, UsePthreads, false, JVMFlag::DEFAULT,
! "Use pthread-based instead of libthread-based synchronization "
! "(SPARC only)");
!
! PRODUCT_FLAG(bool, ReduceSignalUsage, false, JVMFlag::DEFAULT,
! "Reduce the use of OS signals in Java and/or the VM");
!
! DEVELOP_FLAG(bool, LoadLineNumberTables, true, JVMFlag::DEFAULT,
! "Tell whether the class file parser loads line number tables");
!
! DEVELOP_FLAG(bool, LoadLocalVariableTables, true, JVMFlag::DEFAULT,
! "Tell whether the class file parser loads local variable tables");
!
! DEVELOP_FLAG(bool, LoadLocalVariableTypeTables, true, JVMFlag::DEFAULT,
! "Tell whether the class file parser loads local variable type"
! "tables");
!
! PRODUCT_FLAG(bool, AllowUserSignalHandlers, false, JVMFlag::DEFAULT,
! "Do not complain if the application installs signal handlers "
! "(Solaris & Linux only)");
!
! PRODUCT_FLAG(bool, UseSignalChaining, true, JVMFlag::DEFAULT,
! "Use signal-chaining to invoke signal handlers installed "
! "by the application (Solaris & Linux only)");
!
! PRODUCT_FLAG(bool, RestoreMXCSROnJNICalls, false, JVMFlag::DEFAULT,
! "Restore MXCSR when returning from JNI calls");
!
! PRODUCT_FLAG(bool, CheckJNICalls, false, JVMFlag::DEFAULT,
! "Verify all arguments to JNI calls");
!
! PRODUCT_FLAG(bool, UseFastJNIAccessors, true, JVMFlag::DEFAULT,
! "Use optimized versions of Get<Primitive>Field");
!
! PRODUCT_FLAG(intx, MaxJNILocalCapacity, 65536, JVMFlag::RANGE,
! "Maximum allowable local JNI handle capacity to "
! "EnsureLocalCapacity() and PushLocalFrame(), "
! "where <= 0 is unlimited, default: 65536");
! FLAG_RANGE( MaxJNILocalCapacity, min_intx, max_intx);
!
! PRODUCT_FLAG(bool, EagerXrunInit, false, JVMFlag::DEFAULT,
! "Eagerly initialize -Xrun libraries; allows startup profiling, "
! "but not all -Xrun libraries may support the state of the VM "
! "at this time");
!
! PRODUCT_FLAG(bool, PreserveAllAnnotations, false, JVMFlag::DEFAULT,
! "Preserve RuntimeInvisibleAnnotations as well "
! "as RuntimeVisibleAnnotations");
!
! DEVELOP_FLAG(uintx, PreallocatedOutOfMemoryErrorCount, 4, JVMFlag::DEFAULT,
! "Number of OutOfMemoryErrors preallocated with backtrace");
!
! PRODUCT_FLAG(bool, UseXMMForArrayCopy, false, JVMFlag::DEFAULT,
! "Use SSE2 MOVQ instruction for Arraycopy");
!
! NOTPROD_FLAG(bool, PrintFieldLayout, false, JVMFlag::DEFAULT,
! "Print field layout for each class");
!
!
! // Need to limit the extent of the padding to reasonable size.
! // 8K is well beyond the reasonable HW cache line size, even with
! // aggressive prefetching, while still leaving the room for segregating
! // among the distinct pages.
! PRODUCT_FLAG(intx, ContendedPaddingWidth, 128, JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "How many bytes to pad the fields/classes marked @Contended with");
! FLAG_RANGE( ContendedPaddingWidth, 0, 8192);
! FLAG_CONSTRAINT( ContendedPaddingWidth, (void*)ContendedPaddingWidthConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(bool, EnableContended, true, JVMFlag::DEFAULT,
! "Enable @Contended annotation support");
!
! PRODUCT_FLAG(bool, RestrictContended, true, JVMFlag::DEFAULT,
! "Restrict @Contended to trusted classes");
!
! PRODUCT_FLAG(bool, UseBiasedLocking, true, JVMFlag::DEFAULT,
! "Enable biased locking in JVM");
!
! PRODUCT_FLAG(intx, BiasedLockingStartupDelay, 0, JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "Number of milliseconds to wait before enabling biased locking");
! //TODO: to avoid circular dependency, the min/max cannot be declared in header file
! //FLAG_RANGE( BiasedLockingStartupDelay, 0, (intx)(max_jint-(max_jint%PeriodicTask::interval_gran)));
! FLAG_CONSTRAINT( BiasedLockingStartupDelay, (void*)BiasedLockingStartupDelayFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(bool, PrintBiasedLockingStatistics, false, JVMFlag::DIAGNOSTIC,
! "Print statistics of biased locking in JVM");
!
! PRODUCT_FLAG(intx, BiasedLockingBulkRebiasThreshold, 20, JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "Threshold of number of revocations per type to try to "
! "rebias all objects in the heap of that type");
! FLAG_RANGE( BiasedLockingBulkRebiasThreshold, 0, max_intx);
! FLAG_CONSTRAINT( BiasedLockingBulkRebiasThreshold, (void*)BiasedLockingBulkRebiasThresholdFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(intx, BiasedLockingBulkRevokeThreshold, 40, JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "Threshold of number of revocations per type to permanently "
! "revoke biases of all objects in the heap of that type");
! FLAG_RANGE( BiasedLockingBulkRevokeThreshold, 0, max_intx);
! FLAG_CONSTRAINT( BiasedLockingBulkRevokeThreshold, (void*)BiasedLockingBulkRevokeThresholdFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(intx, BiasedLockingDecayTime, 25000, JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "Decay time (in milliseconds) to re-enable bulk rebiasing of a "
! "type after previous bulk rebias");
! FLAG_RANGE( BiasedLockingDecayTime, 500, max_intx);
! FLAG_CONSTRAINT( BiasedLockingDecayTime, (void*)BiasedLockingDecayTimeFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(bool, ExitOnOutOfMemoryError, false, JVMFlag::DEFAULT,
! "JVM exits on the first occurrence of an out-of-memory error");
!
! PRODUCT_FLAG(bool, CrashOnOutOfMemoryError, false, JVMFlag::DEFAULT,
! "JVM aborts, producing an error log and core/mini dump, on the "
! "first occurrence of an out-of-memory error");
!
!
! // tracing
! DEVELOP_FLAG(bool, StressRewriter, false, JVMFlag::DEFAULT,
! "Stress linktime bytecode rewriting");
!
! PRODUCT_FLAG(ccstr, TraceJVMTI, NULL, JVMFlag::DEFAULT,
! "Trace flags for JVMTI functions and events");
!
!
! // This option can change an EMCP method into an obsolete method.
! // This can affect tests that except specific methods to be EMCP.
! // This option should be used with caution.
! PRODUCT_FLAG(bool, StressLdcRewrite, false, JVMFlag::DEFAULT,
! "Force ldc -> ldc_w rewrite during RedefineClasses");
!
!
! // change to false by default sometime after Mustang
! PRODUCT_FLAG(bool, VerifyMergedCPBytecodes, true, JVMFlag::DEFAULT,
! "Verify bytecodes after RedefineClasses constant pool merging");
!
! PRODUCT_FLAG(bool, AllowRedefinitionToAddDeleteMethods, false, JVMFlag::DEFAULT,
! "(Deprecated) Allow redefinition to add and delete private "
! "static or final methods for compatibility with old releases");
!
! DEVELOP_FLAG(bool, TraceBytecodes, false, JVMFlag::DEFAULT,
! "Trace bytecode execution");
!
! DEVELOP_FLAG(bool, TraceICs, false, JVMFlag::DEFAULT,
! "Trace inline cache changes");
!
! NOTPROD_FLAG(bool, TraceInvocationCounterOverflow, false, JVMFlag::DEFAULT,
! "Trace method invocation counter overflow");
!
! DEVELOP_FLAG(bool, TraceInlineCacheClearing, false, JVMFlag::DEFAULT,
! "Trace clearing of inline caches in nmethods");
!
! DEVELOP_FLAG(bool, TraceDependencies, false, JVMFlag::DEFAULT,
! "Trace dependencies");
!
! DEVELOP_FLAG(bool, VerifyDependencies, trueInDebug, JVMFlag::DEFAULT,
! "Exercise and verify the compilation dependency mechanism");
!
! DEVELOP_FLAG(bool, TraceNewOopMapGeneration, false, JVMFlag::DEFAULT,
! "Trace OopMapGeneration");
!
! DEVELOP_FLAG(bool, TraceNewOopMapGenerationDetailed, false, JVMFlag::DEFAULT,
! "Trace OopMapGeneration: print detailed cell states");
!
! DEVELOP_FLAG(bool, TimeOopMap, false, JVMFlag::DEFAULT,
! "Time calls to GenerateOopMap::compute_map() in sum");
!
! DEVELOP_FLAG(bool, TimeOopMap2, false, JVMFlag::DEFAULT,
! "Time calls to GenerateOopMap::compute_map() individually");
!
! DEVELOP_FLAG(bool, TraceOopMapRewrites, false, JVMFlag::DEFAULT,
! "Trace rewriting of method oops during oop map generation");
!
! DEVELOP_FLAG(bool, TraceICBuffer, false, JVMFlag::DEFAULT,
! "Trace usage of IC buffer");
!
! DEVELOP_FLAG(bool, TraceCompiledIC, false, JVMFlag::DEFAULT,
! "Trace changes of compiled IC");
!
! DEVELOP_FLAG(bool, FLSVerifyDictionary, false, JVMFlag::DEFAULT,
! "Do lots of (expensive) FLS dictionary verification");
!
! DEVELOP_FLAG(bool, CheckMemoryInitialization, false, JVMFlag::DEFAULT,
! "Check memory initialization");
! PRODUCT_FLAG(uintx, ProcessDistributionStride, 4, JVMFlag::RANGE,
! "Stride through processors when distributing processes");
! FLAG_RANGE( ProcessDistributionStride, 0, max_juint);
!
! DEVELOP_FLAG(bool, TraceFinalizerRegistration, false, JVMFlag::DEFAULT,
! "Trace registration of final references");
!
! PRODUCT_FLAG(bool, IgnoreEmptyClassPaths, false, JVMFlag::DEFAULT,
! "Ignore empty path elements in -classpath");
!
! PRODUCT_FLAG(size_t, InitialBootClassLoaderMetaspaceSize, NOT_LP64(2200*K) LP64_ONLY(4*M), JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "Initial size of the boot class loader data metaspace");
! FLAG_RANGE( InitialBootClassLoaderMetaspaceSize, 30*K, max_uintx/BytesPerWord);
! FLAG_CONSTRAINT( InitialBootClassLoaderMetaspaceSize, (void*)InitialBootClassLoaderMetaspaceSizeConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(bool, PrintHeapAtSIGBREAK, true, JVMFlag::DEFAULT,
! "Print heap layout in response to SIGBREAK");
!
! PRODUCT_FLAG(bool, PrintClassHistogram, false, JVMFlag::MANAGEABLE,
! "Print a histogram of class instances");
!
! PRODUCT_FLAG(double, ObjectCountCutOffPercent, 0.5, JVMFlag::EXPERIMENTAL | JVMFlag::RANGE,
! "The percentage of the used heap that the instances of a class "
! "must occupy for the class to generate a trace event");
! FLAG_RANGE( ObjectCountCutOffPercent, 0.0, 100.0);
!
!
! // JVMTI heap profiling
! PRODUCT_FLAG(bool, TraceJVMTIObjectTagging, false, JVMFlag::DIAGNOSTIC,
! "Trace JVMTI object tagging calls");
!
! PRODUCT_FLAG(bool, VerifyBeforeIteration, false, JVMFlag::DIAGNOSTIC,
! "Verify memory system before JVMTI iteration");
!
!
! // compiler interface
! DEVELOP_FLAG(bool, CIPrintCompilerName, false, JVMFlag::DEFAULT,
! "when CIPrint is active, print the name of the active compiler");
!
! PRODUCT_FLAG(bool, CIPrintCompileQueue, false, JVMFlag::DIAGNOSTIC,
! "display the contents of the compile queue whenever a "
! "compilation is enqueued");
!
! DEVELOP_FLAG(bool, CIPrintRequests, false, JVMFlag::DEFAULT,
! "display every request for compilation");
!
! PRODUCT_FLAG(bool, CITime, false, JVMFlag::DEFAULT,
! "collect timing information for compilation");
!
! DEVELOP_FLAG(bool, CITimeVerbose, false, JVMFlag::DEFAULT,
! "be more verbose in compilation timings");
!
! DEVELOP_FLAG(bool, CITimeEach, false, JVMFlag::DEFAULT,
! "display timing information after each successful compilation");
!
! DEVELOP_FLAG(bool, CICountOSR, false, JVMFlag::DEFAULT,
! "use a separate counter when assigning ids to osr compilations");
!
! DEVELOP_FLAG(bool, CICompileNatives, true, JVMFlag::DEFAULT,
! "compile native methods if supported by the compiler");
!
! DEVELOP_FLAG_PD(bool, CICompileOSR, JVMFlag::DEFAULT,
! "compile on stack replacement methods if supported by the "
! "compiler");
!
! DEVELOP_FLAG(bool, CIPrintMethodCodes, false, JVMFlag::DEFAULT,
! "print method bytecodes of the compiled code");
!
! DEVELOP_FLAG(bool, CIPrintTypeFlow, false, JVMFlag::DEFAULT,
! "print the results of ciTypeFlow analysis");
!
! DEVELOP_FLAG(bool, CITraceTypeFlow, false, JVMFlag::DEFAULT,
! "detailed per-bytecode tracing of ciTypeFlow analysis");
!
! DEVELOP_FLAG(intx, OSROnlyBCI, -1, JVMFlag::DEFAULT,
! "OSR only at this bci. Negative values mean exclude that bci");
!
!
! // compiler
! // notice: the max range value here is max_jint, not max_intx
! // because of overflow issue
! PRODUCT_FLAG(intx, CICompilerCount, CI_COMPILER_COUNT, JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "Number of compiler threads to run");
! FLAG_RANGE( CICompilerCount, 0, max_jint);
! FLAG_CONSTRAINT( CICompilerCount, (void*)CICompilerCountConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(bool, UseDynamicNumberOfCompilerThreads, true, JVMFlag::DEFAULT,
! "Dynamically choose the number of parallel compiler threads");
!
! PRODUCT_FLAG(bool, ReduceNumberOfCompilerThreads, true, JVMFlag::DIAGNOSTIC,
! "Reduce the number of parallel compiler threads when they "
! "are not used");
!
! PRODUCT_FLAG(bool, TraceCompilerThreads, false, JVMFlag::DIAGNOSTIC,
! "Trace creation and removal of compiler threads");
!
! DEVELOP_FLAG(bool, InjectCompilerCreationFailure, false, JVMFlag::DEFAULT,
! "Inject thread creation failures for "
! "UseDynamicNumberOfCompilerThreads");
!
! DEVELOP_FLAG(bool, UseStackBanging, true, JVMFlag::DEFAULT,
! "use stack banging for stack overflow checks (required for "
! "proper StackOverflow handling; disable only to measure cost "
! "of stackbanging)");
!
! DEVELOP_FLAG(bool, GenerateSynchronizationCode, true, JVMFlag::DEFAULT,
! "generate locking/unlocking code for synchronized methods and "
! "monitors");
!
! DEVELOP_FLAG(bool, GenerateRangeChecks, true, JVMFlag::DEFAULT,
! "Generate range checks for array accesses");
!
! PRODUCT_FLAG_PD(bool, ImplicitNullChecks, JVMFlag::DIAGNOSTIC,
! "Generate code for implicit null checks");
!
! PRODUCT_FLAG_PD(bool, TrapBasedNullChecks, JVMFlag::DEFAULT,
! "Generate code for null checks that uses a cmp and trap "
! "instruction raising SIGTRAP. This is only used if an access to"
! "null (+offset) will not raise a SIGSEGV, i.e.,"
! "ImplicitNullChecks don't work (PPC64).");
!
! PRODUCT_FLAG(bool, EnableThreadSMRExtraValidityChecks, true, JVMFlag::DIAGNOSTIC,
! "Enable Thread SMR extra validity checks");
!
! PRODUCT_FLAG(bool, EnableThreadSMRStatistics, trueInDebug, JVMFlag::DIAGNOSTIC,
! "Enable Thread SMR Statistics");
!
! PRODUCT_FLAG(bool, UseNotificationThread, true, JVMFlag::DEFAULT,
! "Use Notification Thread");
!
! PRODUCT_FLAG(bool, Inline, true, JVMFlag::DEFAULT,
! "Enable inlining");
!
! PRODUCT_FLAG(bool, ClipInlining, true, JVMFlag::DEFAULT,
! "Clip inlining if aggregate method exceeds DesiredMethodLimit");
!
! DEVELOP_FLAG(bool, UseCHA, true, JVMFlag::DEFAULT,
! "Enable CHA");
!
! PRODUCT_FLAG(bool, UseTypeProfile, true, JVMFlag::DEFAULT,
! "Check interpreter profile for historically monomorphic calls");
!
! PRODUCT_FLAG(bool, PrintInlining, false, JVMFlag::DIAGNOSTIC,
! "Print inlining optimizations");
!
! PRODUCT_FLAG(bool, UsePopCountInstruction, false, JVMFlag::DEFAULT,
! "Use population count instruction");
!
! DEVELOP_FLAG(bool, EagerInitialization, false, JVMFlag::DEFAULT,
! "Eagerly initialize classes if possible");
!
! PRODUCT_FLAG(bool, LogTouchedMethods, false, JVMFlag::DIAGNOSTIC,
! "Log methods which have been ever touched in runtime");
!
! PRODUCT_FLAG(bool, PrintTouchedMethodsAtExit, false, JVMFlag::DIAGNOSTIC,
! "Print all methods that have been ever touched in runtime");
!
! DEVELOP_FLAG(bool, TraceMethodReplacement, false, JVMFlag::DEFAULT,
! "Print when methods are replaced do to recompilation");
!
! DEVELOP_FLAG(bool, PrintMethodFlushing, false, JVMFlag::DEFAULT,
! "Print the nmethods being flushed");
!
! PRODUCT_FLAG(bool, PrintMethodFlushingStatistics, false, JVMFlag::DIAGNOSTIC,
! "print statistics about method flushing");
!
! PRODUCT_FLAG(intx, HotMethodDetectionLimit, 100000, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "Number of compiled code invocations after which "
! "the method is considered as hot by the flusher");
! FLAG_RANGE( HotMethodDetectionLimit, 1, max_jint);
!
! PRODUCT_FLAG(intx, MinPassesBeforeFlush, 10, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "Minimum number of sweeper passes before an nmethod "
! "can be flushed");
! FLAG_RANGE( MinPassesBeforeFlush, 0, max_intx);
!
! PRODUCT_FLAG(bool, UseCodeAging, true, JVMFlag::DEFAULT,
! "Insert counter to detect warm methods");
!
! PRODUCT_FLAG(bool, StressCodeAging, false, JVMFlag::DIAGNOSTIC,
! "Start with counters compiled in");
!
! DEVELOP_FLAG(bool, StressCodeBuffers, false, JVMFlag::DEFAULT,
! "Exercise code buffer expansion and other rare state changes");
!
! PRODUCT_FLAG(bool, DebugNonSafepoints, trueInDebug, JVMFlag::DIAGNOSTIC,
! "Generate extra debugging information for non-safepoints in "
! "nmethods");
!
! PRODUCT_FLAG(bool, PrintVMOptions, false, JVMFlag::DEFAULT,
! "Print flags that appeared on the command line");
!
! PRODUCT_FLAG(bool, IgnoreUnrecognizedVMOptions, false, JVMFlag::DEFAULT,
! "Ignore unrecognized VM options");
!
! PRODUCT_FLAG(bool, PrintCommandLineFlags, false, JVMFlag::DEFAULT,
! "Print flags specified on command line or set by ergonomics");
!
! PRODUCT_FLAG(bool, PrintFlagsInitial, false, JVMFlag::DEFAULT,
! "Print all VM flags before argument processing and exit VM");
!
! PRODUCT_FLAG(bool, PrintFlagsFinal, false, JVMFlag::DEFAULT,
! "Print all VM flags after argument and ergonomic processing");
!
! NOTPROD_FLAG(bool, PrintFlagsWithComments, false, JVMFlag::DEFAULT,
! "Print all VM flags with default values and descriptions and "
! "exit");
!
! PRODUCT_FLAG(bool, PrintFlagsRanges, false, JVMFlag::DEFAULT,
! "Print VM flags and their ranges");
!
! PRODUCT_FLAG(bool, SerializeVMOutput, true, JVMFlag::DIAGNOSTIC,
! "Use a mutex to serialize output to tty and LogFile");
!
! PRODUCT_FLAG(bool, DisplayVMOutput, true, JVMFlag::DIAGNOSTIC,
! "Display all VM output on the tty, independently of LogVMOutput");
!
! PRODUCT_FLAG(bool, LogVMOutput, false, JVMFlag::DIAGNOSTIC,
! "Save VM output to LogFile");
!
! PRODUCT_FLAG(ccstr, LogFile, NULL, JVMFlag::DIAGNOSTIC,
! "If LogVMOutput or LogCompilation is on, save VM output to "
! "this file [default: ./hotspot_pid%p.log] (%p replaced with pid)");
!
! PRODUCT_FLAG(ccstr, ErrorFile, NULL, JVMFlag::DEFAULT,
! "If an error occurs, save the error data to this file "
! "[default: ./hs_err_pid%p.log] (%p replaced with pid)");
!
! PRODUCT_FLAG(bool, ExtensiveErrorReports, PRODUCT_ONLY(false) NOT_PRODUCT(true), JVMFlag::DEFAULT,
! "Error reports are more extensive.");
!
! PRODUCT_FLAG(bool, DisplayVMOutputToStderr, false, JVMFlag::DEFAULT,
! "If DisplayVMOutput is true, display all VM output to stderr");
!
! PRODUCT_FLAG(bool, DisplayVMOutputToStdout, false, JVMFlag::DEFAULT,
! "If DisplayVMOutput is true, display all VM output to stdout");
!
! PRODUCT_FLAG(bool, ErrorFileToStderr, false, JVMFlag::DEFAULT,
! "If true, error data is printed to stderr instead of a file");
!
! PRODUCT_FLAG(bool, ErrorFileToStdout, false, JVMFlag::DEFAULT,
! "If true, error data is printed to stdout instead of a file");
!
! PRODUCT_FLAG(bool, UseHeavyMonitors, false, JVMFlag::DEFAULT,
! "use heavyweight instead of lightweight Java monitors");
!
! PRODUCT_FLAG(bool, PrintStringTableStatistics, false, JVMFlag::DEFAULT,
! "print statistics about the StringTable and SymbolTable");
!
! PRODUCT_FLAG(bool, VerifyStringTableAtExit, false, JVMFlag::DIAGNOSTIC,
! "verify StringTable contents at exit");
!
! NOTPROD_FLAG(bool, PrintSymbolTableSizeHistogram, false, JVMFlag::DEFAULT,
! "print histogram of the symbol table");
!
! NOTPROD_FLAG(bool, ExitVMOnVerifyError, false, JVMFlag::DEFAULT,
! "standard exit from VM if bytecode verify error "
! "(only in debug mode)");
!
! PRODUCT_FLAG(ccstr, AbortVMOnException, NULL, JVMFlag::DIAGNOSTIC,
! "Call fatal if this exception is thrown. Example: "
! "java -XX:AbortVMOnException=java.lang.NullPointerException Foo");
!
! PRODUCT_FLAG(ccstr, AbortVMOnExceptionMessage, NULL, JVMFlag::DIAGNOSTIC,
! "Call fatal if the exception pointed by AbortVMOnException "
! "has this message");
!
! DEVELOP_FLAG(bool, DebugVtables, false, JVMFlag::DEFAULT,
! "add debugging code to vtable dispatch");
!
! NOTPROD_FLAG(bool, PrintVtableStats, false, JVMFlag::DEFAULT,
! "print vtables stats at end of run");
!
! DEVELOP_FLAG(bool, TraceCreateZombies, false, JVMFlag::DEFAULT,
! "trace creation of zombie nmethods");
!
! PRODUCT_FLAG(bool, RangeCheckElimination, true, JVMFlag::DEFAULT,
! "Eliminate range checks");
!
! DEVELOP_FLAG_PD(bool, UncommonNullCast, JVMFlag::DEFAULT,
! "track occurrences of null in casts; adjust compiler tactics");
!
! DEVELOP_FLAG(bool, TypeProfileCasts, true, JVMFlag::DEFAULT,
! "treat casts like calls for purposes of type profiling");
!
! DEVELOP_FLAG(bool, TraceLivenessGen, false, JVMFlag::DEFAULT,
! "Trace the generation of liveness analysis information");
!
! NOTPROD_FLAG(bool, TraceLivenessQuery, false, JVMFlag::DEFAULT,
! "Trace queries of liveness analysis information");
!
! NOTPROD_FLAG(bool, CollectIndexSetStatistics, false, JVMFlag::DEFAULT,
! "Collect information about IndexSets");
!
! DEVELOP_FLAG(bool, UseLoopSafepoints, true, JVMFlag::DEFAULT,
! "Generate Safepoint nodes in every loop");
!
! DEVELOP_FLAG(intx, FastAllocateSizeLimit, 128*K, JVMFlag::DEFAULT,
! /* Note: This value is zero mod 1<<13 for a cheap sparc set. */
! "Inline allocations larger than this in doublewords must go slow");
!
!
! // Note: This value is zero mod 1<<13 for a cheap sparc set.
! PRODUCT_FLAG_PD(bool, CompactStrings, JVMFlag::DEFAULT,
! "Enable Strings to use single byte chars in backing store");
!
! PRODUCT_FLAG_PD(uintx, TypeProfileLevel, JVMFlag::CONSTRAINT,
! "=XYZ, with Z: Type profiling of arguments at call; "
! "Y: Type profiling of return value at call; "
! "X: Type profiling of parameters to methods; "
! "X, Y and Z in 0=off ; 1=jsr292 only; 2=all methods");
! FLAG_CONSTRAINT( TypeProfileLevel, (void*)TypeProfileLevelConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(intx, TypeProfileArgsLimit, 2, JVMFlag::RANGE,
! "max number of call arguments to consider for type profiling");
! FLAG_RANGE( TypeProfileArgsLimit, 0, 16);
!
! PRODUCT_FLAG(intx, TypeProfileParmsLimit, 2, JVMFlag::RANGE,
! "max number of incoming parameters to consider for type profiling"
! ", -1 for all");
! FLAG_RANGE( TypeProfileParmsLimit, -1, 64);
!
!
! // statistics
! DEVELOP_FLAG(bool, CountCompiledCalls, false, JVMFlag::DEFAULT,
! "Count method invocations");
!
! NOTPROD_FLAG(bool, CountRuntimeCalls, false, JVMFlag::DEFAULT,
! "Count VM runtime calls");
!
! DEVELOP_FLAG(bool, CountJNICalls, false, JVMFlag::DEFAULT,
! "Count jni method invocations");
!
! NOTPROD_FLAG(bool, CountJVMCalls, false, JVMFlag::DEFAULT,
! "Count jvm method invocations");
!
! NOTPROD_FLAG(bool, CountRemovableExceptions, false, JVMFlag::DEFAULT,
! "Count exceptions that could be replaced by branches due to "
! "inlining");
!
! NOTPROD_FLAG(bool, ICMissHistogram, false, JVMFlag::DEFAULT,
! "Produce histogram of IC misses");
!
!
! // interpreter
! PRODUCT_FLAG_PD(bool, RewriteBytecodes, JVMFlag::DEFAULT,
! "Allow rewriting of bytecodes (bytecodes are not immutable)");
!
! PRODUCT_FLAG_PD(bool, RewriteFrequentPairs, JVMFlag::DEFAULT,
! "Rewrite frequently used bytecode pairs into a single bytecode");
!
! PRODUCT_FLAG(bool, PrintInterpreter, false, JVMFlag::DIAGNOSTIC,
! "Print the generated interpreter code");
!
! PRODUCT_FLAG(bool, UseInterpreter, true, JVMFlag::DEFAULT,
! "Use interpreter for non-compiled methods");
!
! DEVELOP_FLAG(bool, UseFastSignatureHandlers, true, JVMFlag::DEFAULT,
! "Use fast signature handlers for native calls");
!
! PRODUCT_FLAG(bool, UseLoopCounter, true, JVMFlag::DEFAULT,
! "Increment invocation counter on backward branch");
!
! PRODUCT_FLAG_PD(bool, UseOnStackReplacement, JVMFlag::DEFAULT,
! "Use on stack replacement, calls runtime if invoc. counter "
! "overflows in loop");
!
! NOTPROD_FLAG(bool, TraceOnStackReplacement, false, JVMFlag::DEFAULT,
! "Trace on stack replacement");
!
! PRODUCT_FLAG_PD(bool, PreferInterpreterNativeStubs, JVMFlag::DEFAULT,
! "Use always interpreter stubs for native methods invoked via "
! "interpreter");
!
! DEVELOP_FLAG(bool, CountBytecodes, false, JVMFlag::DEFAULT,
! "Count number of bytecodes executed");
!
! DEVELOP_FLAG(bool, PrintBytecodeHistogram, false, JVMFlag::DEFAULT,
! "Print histogram of the executed bytecodes");
!
! DEVELOP_FLAG(bool, PrintBytecodePairHistogram, false, JVMFlag::DEFAULT,
! "Print histogram of the executed bytecode pairs");
!
! PRODUCT_FLAG(bool, PrintSignatureHandlers, false, JVMFlag::DIAGNOSTIC,
! "Print code generated for native method signature handlers");
!
! DEVELOP_FLAG(bool, VerifyOops, false, JVMFlag::DEFAULT,
! "Do plausibility checks for oops");
!
! DEVELOP_FLAG(bool, CheckUnhandledOops, false, JVMFlag::DEFAULT,
! "Check for unhandled oops in VM code");
!
! DEVELOP_FLAG(bool, VerifyJNIFields, trueInDebug, JVMFlag::DEFAULT,
! "Verify jfieldIDs for instance fields");
!
! NOTPROD_FLAG(bool, VerifyJNIEnvThread, false, JVMFlag::DEFAULT,
! "Verify JNIEnv.thread == Thread::current() when entering VM "
! "from JNI");
!
! DEVELOP_FLAG(bool, VerifyFPU, false, JVMFlag::DEFAULT,
! "Verify FPU state (check for NaN's, etc.)");
!
! DEVELOP_FLAG(bool, VerifyThread, false, JVMFlag::DEFAULT,
! "Watch the thread register for corruption (SPARC only)");
!
! DEVELOP_FLAG(bool, VerifyActivationFrameSize, false, JVMFlag::DEFAULT,
! "Verify that activation frame didn't become smaller than its "
! "minimal size");
!
! DEVELOP_FLAG(bool, TraceFrequencyInlining, false, JVMFlag::DEFAULT,
! "Trace frequency based inlining");
!
! DEVELOP_FLAG_PD(bool, InlineIntrinsics, JVMFlag::DEFAULT,
! "Inline intrinsics that can be statically resolved");
!
! PRODUCT_FLAG_PD(bool, ProfileInterpreter, JVMFlag::DEFAULT,
! "Profile at the bytecode level during interpretation");
!
! DEVELOP_FLAG(bool, TraceProfileInterpreter, false, JVMFlag::DEFAULT,
! "Trace profiling at the bytecode level during interpretation. "
! "This outputs the profiling information collected to improve "
! "jit compilation.");
!
! DEVELOP_FLAG_PD(bool, ProfileTraps, JVMFlag::DEFAULT,
! "Profile deoptimization traps at the bytecode level");
!
! PRODUCT_FLAG(intx, ProfileMaturityPercentage, 20, JVMFlag::RANGE,
! "number of method invocations/branches (expressed as % of "
! "CompileThreshold) before using the method's profile");
! FLAG_RANGE( ProfileMaturityPercentage, 0, 100);
!
! PRODUCT_FLAG(bool, PrintMethodData, false, JVMFlag::DIAGNOSTIC,
! "Print the results of +ProfileInterpreter at end of run");
!
! DEVELOP_FLAG(bool, VerifyDataPointer, trueInDebug, JVMFlag::DEFAULT,
! "Verify the method data pointer during interpreter profiling");
!
! DEVELOP_FLAG(bool, VerifyCompiledCode, false, JVMFlag::DEFAULT,
! "Include miscellaneous runtime verifications in nmethod code; "
! "default off because it disturbs nmethod size heuristics");
!
! NOTPROD_FLAG(bool, CrashGCForDumpingJavaThread, false, JVMFlag::DEFAULT,
! "Manually make GC thread crash then dump java stack trace; "
! "Test only");
!
!
! // compilation
! PRODUCT_FLAG(bool, UseCompiler, true, JVMFlag::DEFAULT,
! "Use Just-In-Time compilation");
!
! PRODUCT_FLAG(bool, UseCounterDecay, true, JVMFlag::DEFAULT,
! "Adjust recompilation counters");
!
! DEVELOP_FLAG(intx, CounterHalfLifeTime, 30, JVMFlag::DEFAULT,
! "Half-life time of invocation counters (in seconds)");
!
! DEVELOP_FLAG(intx, CounterDecayMinIntervalLength, 500, JVMFlag::DEFAULT,
! "The minimum interval (in milliseconds) between invocation of "
! "CounterDecay");
!
! PRODUCT_FLAG(bool, AlwaysCompileLoopMethods, false, JVMFlag::DEFAULT,
! "When using recompilation, never interpret methods "
! "containing loops");
!
! PRODUCT_FLAG(bool, DontCompileHugeMethods, true, JVMFlag::DEFAULT,
! "Do not compile methods > HugeMethodLimit");
!
!
! // Bytecode escape analysis estimation.
! PRODUCT_FLAG(bool, EstimateArgEscape, true, JVMFlag::DEFAULT,
! "Analyze bytecodes to estimate escape state of arguments");
!
! PRODUCT_FLAG(intx, BCEATraceLevel, 0, JVMFlag::RANGE,
! "How much tracing to do of bytecode escape analysis estimates "
! "(0-3)");
! FLAG_RANGE( BCEATraceLevel, 0, 3);
!
! PRODUCT_FLAG(intx, MaxBCEAEstimateLevel, 5, JVMFlag::RANGE,
! "Maximum number of nested calls that are analyzed by BC EA");
! FLAG_RANGE( MaxBCEAEstimateLevel, 0, max_jint);
!
! PRODUCT_FLAG(intx, MaxBCEAEstimateSize, 150, JVMFlag::RANGE,
! "Maximum bytecode size of a method to be analyzed by BC EA");
! FLAG_RANGE( MaxBCEAEstimateSize, 0, max_jint);
!
! PRODUCT_FLAG(intx, AllocatePrefetchStyle, 1, JVMFlag::RANGE,
! "0 = no prefetch, "
! "1 = generate prefetch instructions for each allocation, "
! "2 = use TLAB watermark to gate allocation prefetch, "
! "3 = generate one prefetch instruction per cache line");
! FLAG_RANGE( AllocatePrefetchStyle, 0, 3);
!
! PRODUCT_FLAG(intx, AllocatePrefetchDistance, -1, JVMFlag::CONSTRAINT,
! "Distance to prefetch ahead of allocation pointer. "
! "-1: use system-specific value (automatically determined");
! FLAG_CONSTRAINT( AllocatePrefetchDistance, (void*)AllocatePrefetchDistanceConstraintFunc, JVMFlag::AfterMemoryInit);
!
! PRODUCT_FLAG(intx, AllocatePrefetchLines, 3, JVMFlag::RANGE,
! "Number of lines to prefetch ahead of array allocation pointer");
! FLAG_RANGE( AllocatePrefetchLines, 1, 64);
!
! PRODUCT_FLAG(intx, AllocateInstancePrefetchLines, 1, JVMFlag::RANGE,
! "Number of lines to prefetch ahead of instance allocation "
! "pointer");
! FLAG_RANGE( AllocateInstancePrefetchLines, 1, 64);
!
! PRODUCT_FLAG(intx, AllocatePrefetchStepSize, 16, JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "Step size in bytes of sequential prefetch instructions");
! FLAG_RANGE( AllocatePrefetchStepSize, 1, 512);
! FLAG_CONSTRAINT( AllocatePrefetchStepSize, (void*)AllocatePrefetchStepSizeConstraintFunc, JVMFlag::AfterMemoryInit);
!
! PRODUCT_FLAG(intx, AllocatePrefetchInstr, 0, JVMFlag::CONSTRAINT,
! "Select instruction to prefetch ahead of allocation pointer");
! FLAG_CONSTRAINT( AllocatePrefetchInstr, (void*)AllocatePrefetchInstrConstraintFunc, JVMFlag::AfterMemoryInit);
!
!
! // deoptimization
! DEVELOP_FLAG(bool, TraceDeoptimization, false, JVMFlag::DEFAULT,
! "Trace deoptimization");
!
! DEVELOP_FLAG(bool, PrintDeoptimizationDetails, false, JVMFlag::DEFAULT,
! "Print more information about deoptimization");
!
! DEVELOP_FLAG(bool, DebugDeoptimization, false, JVMFlag::DEFAULT,
! "Tracing various information while debugging deoptimization");
!
! PRODUCT_FLAG(intx, SelfDestructTimer, 0, JVMFlag::RANGE,
! "Will cause VM to terminate after a given time (in minutes) "
! "(0 means off)");
! FLAG_RANGE( SelfDestructTimer, 0, max_intx);
!
! PRODUCT_FLAG(intx, MaxJavaStackTraceDepth, 1024, JVMFlag::RANGE,
! "The maximum number of lines in the stack trace for Java "
! "exceptions (0 means all)");
! FLAG_RANGE( MaxJavaStackTraceDepth, 0, max_jint/2);
!
!
! // notice: the max range value here is max_jint, not max_intx
! // because of overflow issue
! PRODUCT_FLAG(intx, GuaranteedSafepointInterval, 1000, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "Guarantee a safepoint (at least) every so many milliseconds "
! "(0 means none)");
! FLAG_RANGE( GuaranteedSafepointInterval, 0, max_jint);
!
! PRODUCT_FLAG(intx, SafepointTimeoutDelay, 10000, JVMFlag::RANGE,
! "Delay in milliseconds for option SafepointTimeout");
! FLAG_RANGE( SafepointTimeoutDelay, 0, max_intx LP64_ONLY(/MICROUNITS));
!
! PRODUCT_FLAG(intx, NmethodSweepActivity, 10, JVMFlag::RANGE,
! "Removes cold nmethods from code cache if > 0. Higher values "
! "result in more aggressive sweeping");
! FLAG_RANGE( NmethodSweepActivity, 0, 2000);
!
! NOTPROD_FLAG(bool, LogSweeper, false, JVMFlag::DEFAULT,
! "Keep a ring buffer of sweeper activity");
!
! NOTPROD_FLAG(intx, SweeperLogEntries, 1024, JVMFlag::DEFAULT,
! "Number of records in the ring buffer of sweeper activity");
!
! NOTPROD_FLAG(intx, MemProfilingInterval, 500, JVMFlag::DEFAULT,
! "Time between each invocation of the MemProfiler");
!
! DEVELOP_FLAG(intx, MallocCatchPtr, -1, JVMFlag::DEFAULT,
! "Hit breakpoint when mallocing/freeing this pointer");
!
! NOTPROD_FLAG(ccstr, SuppressErrorAt, "", JVMFlag::STRINGLIST,
! "List of assertions (file:line) to muzzle");
!
! DEVELOP_FLAG(intx, StackPrintLimit, 100, JVMFlag::DEFAULT,
! "number of stack frames to print in VM-level stack dump");
!
! NOTPROD_FLAG(intx, MaxElementPrintSize, 256, JVMFlag::DEFAULT,
! "maximum number of elements to print");
!
! NOTPROD_FLAG(intx, MaxSubklassPrintSize, 4, JVMFlag::DEFAULT,
! "maximum number of subklasses to print when printing klass");
!
! PRODUCT_FLAG(intx, MaxInlineLevel, 15, JVMFlag::RANGE,
! "maximum number of nested calls that are inlined");
! FLAG_RANGE( MaxInlineLevel, 0, max_jint);
!
! PRODUCT_FLAG(intx, MaxRecursiveInlineLevel, 1, JVMFlag::RANGE,
! "maximum number of nested recursive calls that are inlined");
! FLAG_RANGE( MaxRecursiveInlineLevel, 0, max_jint);
!
! DEVELOP_FLAG(intx, MaxForceInlineLevel, 100, JVMFlag::RANGE,
! "maximum number of nested calls that are forced for inlining "
! "(using CompileCommand or marked w/ @ForceInline)");
! FLAG_RANGE( MaxForceInlineLevel, 0, max_jint);
!
! PRODUCT_FLAG_PD(intx, InlineSmallCode, JVMFlag::RANGE,
! "Only inline already compiled methods if their code size is "
! "less than this");
! FLAG_RANGE( InlineSmallCode, 0, max_jint);
!
! PRODUCT_FLAG(intx, MaxInlineSize, 35, JVMFlag::RANGE,
! "The maximum bytecode size of a method to be inlined");
! FLAG_RANGE( MaxInlineSize, 0, max_jint);
!
! PRODUCT_FLAG_PD(intx, FreqInlineSize, JVMFlag::RANGE,
! "The maximum bytecode size of a frequent method to be inlined");
! FLAG_RANGE( FreqInlineSize, 0, max_jint);
!
! PRODUCT_FLAG(intx, MaxTrivialSize, 6, JVMFlag::RANGE,
! "The maximum bytecode size of a trivial method to be inlined");
! FLAG_RANGE( MaxTrivialSize, 0, max_jint);
!
! PRODUCT_FLAG(intx, MinInliningThreshold, 250, JVMFlag::RANGE,
! "The minimum invocation count a method needs to have to be "
! "inlined");
! FLAG_RANGE( MinInliningThreshold, 0, max_jint);
!
! DEVELOP_FLAG(intx, MethodHistogramCutoff, 100, JVMFlag::DEFAULT,
! "The cutoff value for method invocation histogram (+CountCalls)");
!
! DEVELOP_FLAG(intx, DontYieldALotInterval, 10, JVMFlag::DEFAULT,
! "Interval between which yields will be dropped (milliseconds)");
!
! NOTPROD_FLAG(intx, DeoptimizeALotInterval, 5, JVMFlag::DEFAULT,
! "Number of exits until DeoptimizeALot kicks in");
!
! NOTPROD_FLAG(intx, ZombieALotInterval, 5, JVMFlag::DEFAULT,
! "Number of exits until ZombieALot kicks in");
!
! PRODUCT_FLAG(uintx, MallocMaxTestWords, 0, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "If non-zero, maximum number of words that malloc/realloc can "
! "allocate (for testing only)");
! FLAG_RANGE( MallocMaxTestWords, 0, max_uintx);
!
! PRODUCT_FLAG(intx, TypeProfileWidth, 2, JVMFlag::RANGE,
! "Number of receiver types to record in call/cast profile");
! FLAG_RANGE( TypeProfileWidth, 0, 8);
!
! DEVELOP_FLAG(intx, BciProfileWidth, 2, JVMFlag::DEFAULT,
! "Number of return bci's to record in ret profile");
!
! PRODUCT_FLAG(intx, PerMethodRecompilationCutoff, 400, JVMFlag::RANGE,
! "After recompiling N times, stay in the interpreter (-1=>'Inf')");
! FLAG_RANGE( PerMethodRecompilationCutoff, -1, max_intx);
!
! PRODUCT_FLAG(intx, PerBytecodeRecompilationCutoff, 200, JVMFlag::RANGE,
! "Per-BCI limit on repeated recompilation (-1=>'Inf')");
! FLAG_RANGE( PerBytecodeRecompilationCutoff, -1, max_intx);
!
! PRODUCT_FLAG(intx, PerMethodTrapLimit, 100, JVMFlag::RANGE,
! "Limit on traps (of one kind) in a method (includes inlines)");
! FLAG_RANGE( PerMethodTrapLimit, 0, max_jint);
!
! PRODUCT_FLAG(intx, PerMethodSpecTrapLimit, 5000, JVMFlag::EXPERIMENTAL | JVMFlag::RANGE,
! "Limit on speculative traps (of one kind) in a method "
! "(includes inlines)");
! FLAG_RANGE( PerMethodSpecTrapLimit, 0, max_jint);
!
! PRODUCT_FLAG(intx, PerBytecodeTrapLimit, 4, JVMFlag::RANGE,
! "Limit on traps (of one kind) at a particular BCI");
! FLAG_RANGE( PerBytecodeTrapLimit, 0, max_jint);
!
! PRODUCT_FLAG(intx, SpecTrapLimitExtraEntries, 3, JVMFlag::EXPERIMENTAL,
! "Extra method data trap entries for speculation");
!
! DEVELOP_FLAG(intx, InlineFrequencyRatio, 20, JVMFlag::RANGE,
! "Ratio of call site execution to caller method invocation");
! FLAG_RANGE( InlineFrequencyRatio, 0, max_jint);
!
! PRODUCT_FLAG_PD(intx, InlineFrequencyCount, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "Count of call site execution necessary to trigger frequent "
! "inlining");
! FLAG_RANGE( InlineFrequencyCount, 0, max_jint);
!
! DEVELOP_FLAG(intx, InlineThrowCount, 50, JVMFlag::RANGE,
! "Force inlining of interpreted methods that throw this often");
! FLAG_RANGE( InlineThrowCount, 0, max_jint);
!
! DEVELOP_FLAG(intx, InlineThrowMaxSize, 200, JVMFlag::RANGE,
! "Force inlining of throwing methods smaller than this");
! FLAG_RANGE( InlineThrowMaxSize, 0, max_jint);
!
! DEVELOP_FLAG(intx, ProfilerNodeSize, 1024, JVMFlag::RANGE,
! "Size in K to allocate for the Profile Nodes of each thread");
! FLAG_RANGE( ProfilerNodeSize, 0, 1024);
!
! PRODUCT_FLAG_PD(size_t, MetaspaceSize, JVMFlag::CONSTRAINT,
! "Initial threshold (in bytes) at which a garbage collection "
! "is done to reduce Metaspace usage");
! FLAG_CONSTRAINT( MetaspaceSize, (void*)MetaspaceSizeConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(size_t, MaxMetaspaceSize, max_uintx, JVMFlag::CONSTRAINT,
! "Maximum size of Metaspaces (in bytes)");
! FLAG_CONSTRAINT( MaxMetaspaceSize, (void*)MaxMetaspaceSizeConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(size_t, CompressedClassSpaceSize, 1*G, JVMFlag::RANGE,
! "Maximum size of class area in Metaspace when compressed "
! "class pointers are used");
! FLAG_RANGE( CompressedClassSpaceSize, 1*M, 3*G);
!
! PRODUCT_FLAG(uintx, MinHeapFreeRatio, 40, JVMFlag::MANAGEABLE | JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "The minimum percentage of heap free after GC to avoid expansion."
! " For most GCs this applies to the old generation. In G1 and"
! " ParallelGC it applies to the whole heap.");
! FLAG_RANGE( MinHeapFreeRatio, 0, 100);
! FLAG_CONSTRAINT( MinHeapFreeRatio, (void*)MinHeapFreeRatioConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(uintx, MaxHeapFreeRatio, 70, JVMFlag::MANAGEABLE | JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "The maximum percentage of heap free after GC to avoid shrinking."
! " For most GCs this applies to the old generation. In G1 and"
! " ParallelGC it applies to the whole heap.");
! FLAG_RANGE( MaxHeapFreeRatio, 0, 100);
! FLAG_CONSTRAINT( MaxHeapFreeRatio, (void*)MaxHeapFreeRatioConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(bool, ShrinkHeapInSteps, true, JVMFlag::DEFAULT,
! "When disabled, informs the GC to shrink the java heap directly"
! " to the target size at the next full GC rather than requiring"
! " smaller steps during multiple full GCs.");
!
! PRODUCT_FLAG(intx, SoftRefLRUPolicyMSPerMB, 1000, JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "Number of milliseconds per MB of free space in the heap");
! FLAG_RANGE( SoftRefLRUPolicyMSPerMB, 0, max_intx);
! FLAG_CONSTRAINT( SoftRefLRUPolicyMSPerMB, (void*)SoftRefLRUPolicyMSPerMBConstraintFunc, JVMFlag::AfterMemoryInit);
!
! PRODUCT_FLAG(size_t, MinHeapDeltaBytes, ScaleForWordSize(128*K), JVMFlag::RANGE,
! "The minimum change in heap space due to GC (in bytes)");
! FLAG_RANGE( MinHeapDeltaBytes, 0, max_uintx);
!
! PRODUCT_FLAG(size_t, MinMetaspaceExpansion, ScaleForWordSize(256*K), JVMFlag::RANGE,
! "The minimum expansion of Metaspace (in bytes)");
! FLAG_RANGE( MinMetaspaceExpansion, 0, max_uintx);
!
! PRODUCT_FLAG(uintx, MaxMetaspaceFreeRatio, 70, JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "The maximum percentage of Metaspace free after GC to avoid "
! "shrinking");
! FLAG_RANGE( MaxMetaspaceFreeRatio, 0, 100);
! FLAG_CONSTRAINT( MaxMetaspaceFreeRatio, (void*)MaxMetaspaceFreeRatioConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(uintx, MinMetaspaceFreeRatio, 40, JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "The minimum percentage of Metaspace free after GC to avoid "
! "expansion");
! FLAG_RANGE( MinMetaspaceFreeRatio, 0, 99);
! FLAG_CONSTRAINT( MinMetaspaceFreeRatio, (void*)MinMetaspaceFreeRatioConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(size_t, MaxMetaspaceExpansion, ScaleForWordSize(4*M), JVMFlag::RANGE,
! "The maximum expansion of Metaspace without full GC (in bytes)");
! FLAG_RANGE( MaxMetaspaceExpansion, 0, max_uintx);
!
!
! // stack parameters
! PRODUCT_FLAG_PD(intx, StackYellowPages, JVMFlag::RANGE,
! "Number of yellow zone (recoverable overflows) pages of size "
! "4KB. If pages are bigger yellow zone is aligned up.");
! FLAG_RANGE( StackYellowPages, MIN_STACK_YELLOW_PAGES, (DEFAULT_STACK_YELLOW_PAGES+5));
!
! PRODUCT_FLAG_PD(intx, StackRedPages, JVMFlag::RANGE,
! "Number of red zone (unrecoverable overflows) pages of size "
! "4KB. If pages are bigger red zone is aligned up.");
! FLAG_RANGE( StackRedPages, MIN_STACK_RED_PAGES, (DEFAULT_STACK_RED_PAGES+2));
!
! PRODUCT_FLAG_PD(intx, StackReservedPages, JVMFlag::RANGE,
! "Number of reserved zone (reserved to annotated methods) pages"
! " of size 4KB. If pages are bigger reserved zone is aligned up.");
! FLAG_RANGE( StackReservedPages, MIN_STACK_RESERVED_PAGES, (DEFAULT_STACK_RESERVED_PAGES+10));
!
! PRODUCT_FLAG(bool, RestrictReservedStack, true, JVMFlag::DEFAULT,
! "Restrict @ReservedStackAccess to trusted classes");
!
!
! // greater stack shadow pages can't generate instruction to bang stack
! PRODUCT_FLAG_PD(intx, StackShadowPages, JVMFlag::RANGE,
! "Number of shadow zone (for overflow checking) pages of size "
! "4KB. If pages are bigger shadow zone is aligned up. "
! "This should exceed the depth of the VM and native call stack.");
! FLAG_RANGE( StackShadowPages, MIN_STACK_SHADOW_PAGES, (DEFAULT_STACK_SHADOW_PAGES+30));
!
! PRODUCT_FLAG_PD(intx, ThreadStackSize, JVMFlag::RANGE,
! "Thread Stack Size (in Kbytes)");
! FLAG_RANGE( ThreadStackSize, 0, 1 * M);
!
! PRODUCT_FLAG_PD(intx, VMThreadStackSize, JVMFlag::RANGE,
! "Non-Java Thread Stack Size (in Kbytes)");
! FLAG_RANGE( VMThreadStackSize, 0, max_intx/(1 * K));
!
! PRODUCT_FLAG_PD(intx, CompilerThreadStackSize, JVMFlag::RANGE,
! "Compiler Thread Stack Size (in Kbytes)");
! FLAG_RANGE( CompilerThreadStackSize, 0, max_intx/(1 * K));
!
! DEVELOP_FLAG_PD(size_t, JVMInvokeMethodSlack, JVMFlag::DEFAULT,
! "Stack space (bytes) required for JVM_InvokeMethod to complete");
!
!
! // code cache parameters
! DEVELOP_FLAG_PD(uintx, CodeCacheSegmentSize, JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "Code cache segment size (in bytes) - smallest unit of "
! "allocation");
! FLAG_RANGE( CodeCacheSegmentSize, 1, 1024);
! FLAG_CONSTRAINT( CodeCacheSegmentSize, (void*)CodeCacheSegmentSizeConstraintFunc, JVMFlag::AfterErgo);
!
! DEVELOP_FLAG_PD(intx, CodeEntryAlignment, JVMFlag::CONSTRAINT,
! "Code entry alignment for generated code (in bytes)");
! FLAG_CONSTRAINT( CodeEntryAlignment, (void*)CodeEntryAlignmentConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG_PD(intx, OptoLoopAlignment, JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "Align inner loops to zero relative to this modulus");
! FLAG_RANGE( OptoLoopAlignment, 1, 16);
! FLAG_CONSTRAINT( OptoLoopAlignment, (void*)OptoLoopAlignmentConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG_PD(uintx, InitialCodeCacheSize, JVMFlag::RANGE,
! "Initial code cache size (in bytes)");
! FLAG_CUSTOM_RANGE( InitialCodeCacheSize, VMPageSize);
!
! DEVELOP_FLAG_PD(uintx, CodeCacheMinimumUseSpace, JVMFlag::RANGE,
! "Minimum code cache size (in bytes) required to start VM.");
! FLAG_RANGE( CodeCacheMinimumUseSpace, 0, max_uintx);
!
! PRODUCT_FLAG(bool, SegmentedCodeCache, false, JVMFlag::DEFAULT,
! "Use a segmented code cache");
!
! PRODUCT_FLAG_PD(uintx, ReservedCodeCacheSize, JVMFlag::RANGE,
! "Reserved code cache size (in bytes) - maximum code cache size");
! FLAG_CUSTOM_RANGE( ReservedCodeCacheSize, VMPageSize);
!
! PRODUCT_FLAG_PD(uintx, NonProfiledCodeHeapSize, JVMFlag::RANGE,
! "Size of code heap with non-profiled methods (in bytes)");
! FLAG_RANGE( NonProfiledCodeHeapSize, 0, max_uintx);
!
! PRODUCT_FLAG_PD(uintx, ProfiledCodeHeapSize, JVMFlag::RANGE,
! "Size of code heap with profiled methods (in bytes)");
! FLAG_RANGE( ProfiledCodeHeapSize, 0, max_uintx);
!
! PRODUCT_FLAG_PD(uintx, NonNMethodCodeHeapSize, JVMFlag::RANGE,
! "Size of code heap with non-nmethods (in bytes)");
! FLAG_CUSTOM_RANGE( NonNMethodCodeHeapSize, VMPageSize);
!
! PRODUCT_FLAG_PD(uintx, CodeCacheExpansionSize, JVMFlag::RANGE,
! "Code cache expansion size (in bytes)");
! FLAG_RANGE( CodeCacheExpansionSize, 32*K, max_uintx);
!
! PRODUCT_FLAG_PD(uintx, CodeCacheMinBlockLength, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "Minimum number of segments in a code cache block");
! FLAG_RANGE( CodeCacheMinBlockLength, 1, 100);
!
! NOTPROD_FLAG(bool, ExitOnFullCodeCache, false, JVMFlag::DEFAULT,
! "Exit the VM if we fill the code cache");
!
! PRODUCT_FLAG(bool, UseCodeCacheFlushing, true, JVMFlag::DEFAULT,
! "Remove cold/old nmethods from the code cache");
!
! PRODUCT_FLAG(uintx, StartAggressiveSweepingAt, 10, JVMFlag::RANGE,
! "Start aggressive sweeping if X[%] of the code cache is free."
! "Segmented code cache: X[%] of the non-profiled heap."
! "Non-segmented code cache: X[%] of the total code cache");
! FLAG_RANGE( StartAggressiveSweepingAt, 0, 100);
!
!
! // AOT parameters
! PRODUCT_FLAG(bool, UseAOT, false, JVMFlag::EXPERIMENTAL,
! "Use AOT compiled files");
!
! PRODUCT_FLAG(ccstr, AOTLibrary, NULL, JVMFlag::EXPERIMENTAL | JVMFlag::STRINGLIST,
! "AOT library");
!
! PRODUCT_FLAG(bool, PrintAOT, false, JVMFlag::EXPERIMENTAL,
! "Print used AOT klasses and methods");
!
! NOTPROD_FLAG(bool, PrintAOTStatistics, false, JVMFlag::DEFAULT,
! "Print AOT statistics");
!
! PRODUCT_FLAG(bool, UseAOTStrictLoading, false, JVMFlag::DIAGNOSTIC,
! "Exit the VM if any of the AOT libraries has invalid config");
!
! PRODUCT_FLAG(bool, CalculateClassFingerprint, false, JVMFlag::DEFAULT,
! "Calculate class fingerprint");
!
!
! // interpreter debugging
! DEVELOP_FLAG(intx, BinarySwitchThreshold, 5, JVMFlag::DEFAULT,
! "Minimal number of lookupswitch entries for rewriting to binary "
! "switch");
!
! DEVELOP_FLAG(intx, StopInterpreterAt, 0, JVMFlag::DEFAULT,
! "Stop interpreter execution at specified bytecode number");
!
! DEVELOP_FLAG(intx, TraceBytecodesAt, 0, JVMFlag::DEFAULT,
! "Trace bytecodes starting with specified bytecode number");
!
!
! // compiler interface
! DEVELOP_FLAG(intx, CIStart, 0, JVMFlag::DEFAULT,
! "The id of the first compilation to permit");
!
! DEVELOP_FLAG(intx, CIStop, max_jint, JVMFlag::DEFAULT,
! "The id of the last compilation to permit");
!
! DEVELOP_FLAG(intx, CIStartOSR, 0, JVMFlag::DEFAULT,
! "The id of the first osr compilation to permit "
! "(CICountOSR must be on)");
!
! DEVELOP_FLAG(intx, CIStopOSR, max_jint, JVMFlag::DEFAULT,
! "The id of the last osr compilation to permit "
! "(CICountOSR must be on)");
!
! DEVELOP_FLAG(intx, CIBreakAtOSR, -1, JVMFlag::DEFAULT,
! "The id of osr compilation to break at");
!
! DEVELOP_FLAG(intx, CIBreakAt, -1, JVMFlag::DEFAULT,
! "The id of compilation to break at");
!
! PRODUCT_FLAG(ccstr, CompileOnly, "", JVMFlag::STRINGLIST,
! "List of methods (pkg/class.name) to restrict compilation to");
!
! PRODUCT_FLAG(ccstr, CompileCommandFile, NULL, JVMFlag::DEFAULT,
! "Read compiler commands from this file [.hotspot_compiler]");
!
! PRODUCT_FLAG(ccstr, CompilerDirectivesFile, NULL, JVMFlag::DIAGNOSTIC,
! "Read compiler directives from this file");
!
! PRODUCT_FLAG(ccstr, CompileCommand, "", JVMFlag::STRINGLIST,
! "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>");
!
! DEVELOP_FLAG(bool, ReplayCompiles, false, JVMFlag::DEFAULT,
! "Enable replay of compilations from ReplayDataFile");
!
! PRODUCT_FLAG(ccstr, ReplayDataFile, NULL, JVMFlag::DEFAULT,
! "File containing compilation replay information"
! "[default: ./replay_pid%p.log] (%p replaced with pid)");
!
! PRODUCT_FLAG(ccstr, InlineDataFile, NULL, JVMFlag::DEFAULT,
! "File containing inlining replay information"
! "[default: ./inline_pid%p.log] (%p replaced with pid)");
!
! DEVELOP_FLAG(intx, ReplaySuppressInitializers, 2, JVMFlag::RANGE,
! "Control handling of class initialization during replay: "
! "0 - don't do anything special; "
! "1 - treat all class initializers as empty; "
! "2 - treat class initializers for application classes as empty; "
! "3 - allow all class initializers to run during bootstrap but "
! " pretend they are empty after starting replay");
! FLAG_RANGE( ReplaySuppressInitializers, 0, 3);
!
! DEVELOP_FLAG(bool, ReplayIgnoreInitErrors, false, JVMFlag::DEFAULT,
! "Ignore exceptions thrown during initialization for replay");
!
! PRODUCT_FLAG(bool, DumpReplayDataOnError, true, JVMFlag::DEFAULT,
! "Record replay data for crashing compiler threads");
!
! PRODUCT_FLAG(bool, CICompilerCountPerCPU, false, JVMFlag::DEFAULT,
! "1 compiler thread for log(N CPUs)");
!
! NOTPROD_FLAG(intx, CICrashAt, -1, JVMFlag::DEFAULT,
! "id of compilation to trigger assert in compiler thread for "
! "the purpose of testing, e.g. generation of replay data");
!
! NOTPROD_FLAG(bool, CIObjectFactoryVerify, false, JVMFlag::DEFAULT,
! "enable potentially expensive verification in ciObjectFactory");
!
! PRODUCT_FLAG(bool, AbortVMOnCompilationFailure, false, JVMFlag::DIAGNOSTIC,
! "Abort VM when method had failed to compile.");
!
!
! // Priorities
! PRODUCT_FLAG_PD(bool, UseThreadPriorities, JVMFlag::DEFAULT,
! "Use native thread priorities");
!
! PRODUCT_FLAG(intx, ThreadPriorityPolicy, 0, JVMFlag::RANGE,
! "0 : Normal. "
! " VM chooses priorities that are appropriate for normal "
! " applications. On Solaris NORM_PRIORITY and above are mapped "
! " to normal native priority. Java priorities below "
! " NORM_PRIORITY map to lower native priority values. On "
! " Windows applications are allowed to use higher native "
! " priorities. However, with ThreadPriorityPolicy=0, VM will "
! " not use the highest possible native priority, "
! " THREAD_PRIORITY_TIME_CRITICAL, as it may interfere with "
! " system threads. On Linux thread priorities are ignored "
! " because the OS does not support static priority in "
! " SCHED_OTHER scheduling class which is the only choice for "
! " non-root, non-realtime applications. "
! "1 : Aggressive. "
! " Java thread priorities map over to the entire range of "
! " native thread priorities. Higher Java thread priorities map "
! " to higher native thread priorities. This policy should be "
! " used with care, as sometimes it can cause performance "
! " degradation in the application and/or the entire system. On "
! " Linux/BSD/macOS this policy requires root privilege or an "
! " extended capability.");
! FLAG_RANGE( ThreadPriorityPolicy, 0, 1);
!
! PRODUCT_FLAG(bool, ThreadPriorityVerbose, false, JVMFlag::DEFAULT,
! "Print priority changes");
!
! PRODUCT_FLAG(intx, CompilerThreadPriority, -1, JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "The native priority at which compiler threads should run "
! "(-1 means no change)");
! FLAG_RANGE( CompilerThreadPriority, min_jint, max_jint);
! FLAG_CONSTRAINT( CompilerThreadPriority, (void*)CompilerThreadPriorityConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(intx, VMThreadPriority, -1, JVMFlag::RANGE,
! "The native priority at which the VM thread should run "
! "(-1 means no change)");
! FLAG_RANGE( VMThreadPriority, -1, 127);
!
! PRODUCT_FLAG(intx, JavaPriority1_To_OSPriority, -1, JVMFlag::RANGE,
! "Map Java priorities to OS priorities");
! FLAG_RANGE( JavaPriority1_To_OSPriority, -1, 127);
!
! PRODUCT_FLAG(intx, JavaPriority2_To_OSPriority, -1, JVMFlag::RANGE,
! "Map Java priorities to OS priorities");
! FLAG_RANGE( JavaPriority2_To_OSPriority, -1, 127);
!
! PRODUCT_FLAG(intx, JavaPriority3_To_OSPriority, -1, JVMFlag::RANGE,
! "Map Java priorities to OS priorities");
! FLAG_RANGE( JavaPriority3_To_OSPriority, -1, 127);
!
! PRODUCT_FLAG(intx, JavaPriority4_To_OSPriority, -1, JVMFlag::RANGE,
! "Map Java priorities to OS priorities");
! FLAG_RANGE( JavaPriority4_To_OSPriority, -1, 127);
!
! PRODUCT_FLAG(intx, JavaPriority5_To_OSPriority, -1, JVMFlag::RANGE,
! "Map Java priorities to OS priorities");
! FLAG_RANGE( JavaPriority5_To_OSPriority, -1, 127);
!
! PRODUCT_FLAG(intx, JavaPriority6_To_OSPriority, -1, JVMFlag::RANGE,
! "Map Java priorities to OS priorities");
! FLAG_RANGE( JavaPriority6_To_OSPriority, -1, 127);
!
! PRODUCT_FLAG(intx, JavaPriority7_To_OSPriority, -1, JVMFlag::RANGE,
! "Map Java priorities to OS priorities");
! FLAG_RANGE( JavaPriority7_To_OSPriority, -1, 127);
!
! PRODUCT_FLAG(intx, JavaPriority8_To_OSPriority, -1, JVMFlag::RANGE,
! "Map Java priorities to OS priorities");
! FLAG_RANGE( JavaPriority8_To_OSPriority, -1, 127);
!
! PRODUCT_FLAG(intx, JavaPriority9_To_OSPriority, -1, JVMFlag::RANGE,
! "Map Java priorities to OS priorities");
! FLAG_RANGE( JavaPriority9_To_OSPriority, -1, 127);
!
! PRODUCT_FLAG(intx, JavaPriority10_To_OSPriority, -1, JVMFlag::RANGE,
! "Map Java priorities to OS priorities");
! FLAG_RANGE( JavaPriority10_To_OSPriority, -1, 127);
!
! PRODUCT_FLAG(bool, UseCriticalJavaThreadPriority, false, JVMFlag::EXPERIMENTAL,
! "Java thread priority 10 maps to critical scheduling priority");
!
! PRODUCT_FLAG(bool, UseCriticalCompilerThreadPriority, false, JVMFlag::EXPERIMENTAL,
! "Compiler thread(s) run at critical scheduling priority");
!
! DEVELOP_FLAG(intx, NewCodeParameter, 0, JVMFlag::DEFAULT,
! "Testing Only: Create a dedicated integer parameter before "
! "putback");
!
!
! // new oopmap storage allocation
! DEVELOP_FLAG(intx, MinOopMapAllocation, 8, JVMFlag::DEFAULT,
! "Minimum number of OopMap entries in an OopMapSet");
!
!
! // Background Compilation
! DEVELOP_FLAG(intx, LongCompileThreshold, 50, JVMFlag::DEFAULT,
! "Used with +TraceLongCompiles");
!
!
! // recompilation
! PRODUCT_FLAG_PD(intx, CompileThreshold, JVMFlag::CONSTRAINT,
! "number of interpreted method invocations before (re-)compiling");
! FLAG_CONSTRAINT( CompileThreshold, (void*)CompileThresholdConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(double, CompileThresholdScaling, 1.0, JVMFlag::RANGE,
! "Factor to control when first compilation happens "
! "(both with and without tiered compilation): "
! "values greater than 1.0 delay counter overflow, "
! "values between 0 and 1.0 rush counter overflow, "
! "value of 1.0 leaves compilation thresholds unchanged "
! "value of 0.0 is equivalent to -Xint. "
! ""
! "Flag can be set as per-method option. "
! "If a value is specified for a method, compilation thresholds "
! "for that method are scaled by both the value of the global flag "
! "and the value of the per-method flag.");
! FLAG_RANGE( CompileThresholdScaling, 0.0, DBL_MAX);
!
! PRODUCT_FLAG(intx, Tier0InvokeNotifyFreqLog, 7, JVMFlag::RANGE,
! "Interpreter (tier 0) invocation notification frequency");
! FLAG_RANGE( Tier0InvokeNotifyFreqLog, 0, 30);
!
! PRODUCT_FLAG(intx, Tier2InvokeNotifyFreqLog, 11, JVMFlag::RANGE,
! "C1 without MDO (tier 2) invocation notification frequency");
! FLAG_RANGE( Tier2InvokeNotifyFreqLog, 0, 30);
!
! PRODUCT_FLAG(intx, Tier3InvokeNotifyFreqLog, 10, JVMFlag::RANGE,
! "C1 with MDO profiling (tier 3) invocation notification "
! "frequency");
! FLAG_RANGE( Tier3InvokeNotifyFreqLog, 0, 30);
!
! PRODUCT_FLAG(intx, Tier23InlineeNotifyFreqLog, 20, JVMFlag::RANGE,
! "Inlinee invocation (tiers 2 and 3) notification frequency");
! FLAG_RANGE( Tier23InlineeNotifyFreqLog, 0, 30);
!
! PRODUCT_FLAG(intx, Tier0BackedgeNotifyFreqLog, 10, JVMFlag::RANGE,
! "Interpreter (tier 0) invocation notification frequency");
! FLAG_RANGE( Tier0BackedgeNotifyFreqLog, 0, 30);
!
! PRODUCT_FLAG(intx, Tier2BackedgeNotifyFreqLog, 14, JVMFlag::RANGE,
! "C1 without MDO (tier 2) invocation notification frequency");
! FLAG_RANGE( Tier2BackedgeNotifyFreqLog, 0, 30);
!
! PRODUCT_FLAG(intx, Tier3BackedgeNotifyFreqLog, 13, JVMFlag::RANGE,
! "C1 with MDO profiling (tier 3) invocation notification "
! "frequency");
! FLAG_RANGE( Tier3BackedgeNotifyFreqLog, 0, 30);
!
! PRODUCT_FLAG(intx, Tier2CompileThreshold, 0, JVMFlag::RANGE,
! "threshold at which tier 2 compilation is invoked");
! FLAG_RANGE( Tier2CompileThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier2BackEdgeThreshold, 0, JVMFlag::RANGE,
! "Back edge threshold at which tier 2 compilation is invoked");
! FLAG_RANGE( Tier2BackEdgeThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier3InvocationThreshold, 200, JVMFlag::RANGE,
! "Compile if number of method invocations crosses this "
! "threshold");
! FLAG_RANGE( Tier3InvocationThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier3MinInvocationThreshold, 100, JVMFlag::RANGE,
! "Minimum invocation to compile at tier 3");
! FLAG_RANGE( Tier3MinInvocationThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier3CompileThreshold, 2000, JVMFlag::RANGE,
! "Threshold at which tier 3 compilation is invoked (invocation "
! "minimum must be satisfied)");
! FLAG_RANGE( Tier3CompileThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier3BackEdgeThreshold, 60000, JVMFlag::RANGE,
! "Back edge threshold at which tier 3 OSR compilation is invoked");
! FLAG_RANGE( Tier3BackEdgeThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier3AOTInvocationThreshold, 10000, JVMFlag::RANGE,
! "Compile if number of method invocations crosses this "
! "threshold if coming from AOT");
! FLAG_RANGE( Tier3AOTInvocationThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier3AOTMinInvocationThreshold, 1000, JVMFlag::RANGE,
! "Minimum invocation to compile at tier 3 if coming from AOT");
! FLAG_RANGE( Tier3AOTMinInvocationThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier3AOTCompileThreshold, 15000, JVMFlag::RANGE,
! "Threshold at which tier 3 compilation is invoked (invocation "
! "minimum must be satisfied) if coming from AOT");
! FLAG_RANGE( Tier3AOTCompileThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier3AOTBackEdgeThreshold, 120000, JVMFlag::RANGE,
! "Back edge threshold at which tier 3 OSR compilation is invoked "
! "if coming from AOT");
! FLAG_RANGE( Tier3AOTBackEdgeThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier0AOTInvocationThreshold, 200, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "Switch to interpreter to profile if the number of method "
! "invocations crosses this threshold if coming from AOT "
! "(applicable only with "
! "CompilationMode=high-only|high-only-quick-internal)");
! FLAG_RANGE( Tier0AOTInvocationThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier0AOTMinInvocationThreshold, 100, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "Minimum number of invocations to switch to interpreter "
! "to profile if coming from AOT "
! "(applicable only with "
! "CompilationMode=high-only|high-only-quick-internal)");
! FLAG_RANGE( Tier0AOTMinInvocationThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier0AOTCompileThreshold, 2000, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "Threshold at which to switch to interpreter to profile "
! "if coming from AOT "
! "(invocation minimum must be satisfied, "
! "applicable only with "
! "CompilationMode=high-only|high-only-quick-internal)");
! FLAG_RANGE( Tier0AOTCompileThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier0AOTBackEdgeThreshold, 60000, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "Back edge threshold at which to switch to interpreter "
! "to profile if coming from AOT "
! "(applicable only with "
! "CompilationMode=high-only|high-only-quick-internal)");
! FLAG_RANGE( Tier0AOTBackEdgeThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier4InvocationThreshold, 5000, JVMFlag::RANGE,
! "Compile if number of method invocations crosses this "
! "threshold");
! FLAG_RANGE( Tier4InvocationThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier4MinInvocationThreshold, 600, JVMFlag::RANGE,
! "Minimum invocation to compile at tier 4");
! FLAG_RANGE( Tier4MinInvocationThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier4CompileThreshold, 15000, JVMFlag::RANGE,
! "Threshold at which tier 4 compilation is invoked (invocation "
! "minimum must be satisfied)");
! FLAG_RANGE( Tier4CompileThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier4BackEdgeThreshold, 40000, JVMFlag::RANGE,
! "Back edge threshold at which tier 4 OSR compilation is invoked");
! FLAG_RANGE( Tier4BackEdgeThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier40InvocationThreshold, 5000, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "Compile if number of method invocations crosses this "
! "threshold (applicable only with "
! "CompilationMode=high-only|high-only-quick-internal)");
! FLAG_RANGE( Tier40InvocationThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier40MinInvocationThreshold, 600, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "Minimum number of invocations to compile at tier 4 "
! "(applicable only with "
! "CompilationMode=high-only|high-only-quick-internal)");
! FLAG_RANGE( Tier40MinInvocationThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier40CompileThreshold, 10000, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "Threshold at which tier 4 compilation is invoked (invocation "
! "minimum must be satisfied, applicable only with "
! "CompilationMode=high-only|high-only-quick-internal)");
! FLAG_RANGE( Tier40CompileThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier40BackEdgeThreshold, 15000, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "Back edge threshold at which tier 4 OSR compilation is invoked "
! "(applicable only with "
! "CompilationMode=high-only|high-only-quick-internal)");
! FLAG_RANGE( Tier40BackEdgeThreshold, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier0Delay, 5, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "If C2 queue size grows over this amount per compiler thread "
! "do not start profiling in the interpreter "
! "(applicable only with "
! "CompilationMode=high-only|high-only-quick-internal)");
! FLAG_RANGE( Tier0Delay, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier3DelayOn, 5, JVMFlag::RANGE,
! "If C2 queue size grows over this amount per compiler thread "
! "stop compiling at tier 3 and start compiling at tier 2");
! FLAG_RANGE( Tier3DelayOn, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier3DelayOff, 2, JVMFlag::RANGE,
! "If C2 queue size is less than this amount per compiler thread "
! "allow methods compiled at tier 2 transition to tier 3");
! FLAG_RANGE( Tier3DelayOff, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier3LoadFeedback, 5, JVMFlag::RANGE,
! "Tier 3 thresholds will increase twofold when C1 queue size "
! "reaches this amount per compiler thread");
! FLAG_RANGE( Tier3LoadFeedback, 0, max_jint);
!
! PRODUCT_FLAG(intx, Tier4LoadFeedback, 3, JVMFlag::RANGE,
! "Tier 4 thresholds will increase twofold when C2 queue size "
! "reaches this amount per compiler thread");
! FLAG_RANGE( Tier4LoadFeedback, 0, max_jint);
!
! PRODUCT_FLAG(intx, TieredCompileTaskTimeout, 50, JVMFlag::RANGE,
! "Kill compile task if method was not used within "
! "given timeout in milliseconds");
! FLAG_RANGE( TieredCompileTaskTimeout, 0, max_intx);
!
! PRODUCT_FLAG(intx, TieredStopAtLevel, 4, JVMFlag::RANGE,
! "Stop at given compilation level");
! FLAG_RANGE( TieredStopAtLevel, 0, 4);
!
! PRODUCT_FLAG(intx, Tier0ProfilingStartPercentage, 200, JVMFlag::RANGE,
! "Start profiling in interpreter if the counters exceed tier 3 "
! "thresholds (tier 4 thresholds with "
! "CompilationMode=high-only|high-only-quick-internal)"
! "by the specified percentage");
! FLAG_RANGE( Tier0ProfilingStartPercentage, 0, max_jint);
!
! PRODUCT_FLAG(uintx, IncreaseFirstTierCompileThresholdAt, 50, JVMFlag::RANGE,
! "Increase the compile threshold for C1 compilation if the code "
! "cache is filled by the specified percentage");
! FLAG_RANGE( IncreaseFirstTierCompileThresholdAt, 0, 99);
!
! PRODUCT_FLAG(intx, TieredRateUpdateMinTime, 1, JVMFlag::RANGE,
! "Minimum rate sampling interval (in milliseconds)");
! FLAG_RANGE( TieredRateUpdateMinTime, 0, max_intx);
!
! PRODUCT_FLAG(intx, TieredRateUpdateMaxTime, 25, JVMFlag::RANGE,
! "Maximum rate sampling interval (in milliseconds)");
! FLAG_RANGE( TieredRateUpdateMaxTime, 0, max_intx);
!
! PRODUCT_FLAG(ccstr, CompilationMode, "default", JVMFlag::DEFAULT,
! "Compilation modes: "
! "default: normal tiered compilation; "
! "quick-only: C1-only mode; "
! "high-only: C2/JVMCI-only mode; "
! "high-only-quick-internal: C2/JVMCI-only mode, "
! "with JVMCI compiler compiled with C1.");
!
! PRODUCT_FLAG_PD(bool, TieredCompilation, JVMFlag::DEFAULT,
! "Enable tiered compilation");
!
! PRODUCT_FLAG(bool, PrintTieredEvents, false, JVMFlag::DEFAULT,
! "Print tiered events notifications");
!
! PRODUCT_FLAG_PD(intx, OnStackReplacePercentage, JVMFlag::CONSTRAINT,
! "NON_TIERED number of method invocations/branches (expressed as "
! "% of CompileThreshold) before (re-)compiling OSR code");
! FLAG_CONSTRAINT( OnStackReplacePercentage, (void*)OnStackReplacePercentageConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(intx, InterpreterProfilePercentage, 33, JVMFlag::RANGE,
! "NON_TIERED number of method invocations/branches (expressed as "
! "% of CompileThreshold) before profiling in the interpreter");
! FLAG_RANGE( InterpreterProfilePercentage, 0, 100);
!
! DEVELOP_FLAG(intx, DesiredMethodLimit, 8000, JVMFlag::DEFAULT,
! "The desired maximum method size (in bytecodes) after inlining");
!
! DEVELOP_FLAG(intx, HugeMethodLimit, 8000, JVMFlag::DEFAULT,
! "Don't compile methods larger than this if "
! "+DontCompileHugeMethods");
!
!
! // Properties for Java libraries
! PRODUCT_FLAG(uint64_t, MaxDirectMemorySize, 0, JVMFlag::RANGE,
! "Maximum total size of NIO direct-buffer allocations");
! FLAG_RANGE( MaxDirectMemorySize, 0, max_jlong);
!
!
! // Flags used for temporary code during development
! PRODUCT_FLAG(bool, UseNewCode, false, JVMFlag::DIAGNOSTIC,
! "Testing Only: Use the new version while testing");
!
! PRODUCT_FLAG(bool, UseNewCode2, false, JVMFlag::DIAGNOSTIC,
! "Testing Only: Use the new version while testing");
!
! PRODUCT_FLAG(bool, UseNewCode3, false, JVMFlag::DIAGNOSTIC,
! "Testing Only: Use the new version while testing");
!
!
! // flags for performance data collection
! PRODUCT_FLAG(bool, UsePerfData, true, JVMFlag::DEFAULT,
! "Flag to disable jvmstat instrumentation for performance testing "
! "and problem isolation purposes");
!
! PRODUCT_FLAG(bool, PerfDataSaveToFile, false, JVMFlag::DEFAULT,
! "Save PerfData memory to hsperfdata_<pid> file on exit");
!
! PRODUCT_FLAG(ccstr, PerfDataSaveFile, NULL, JVMFlag::DEFAULT,
! "Save PerfData memory to the specified absolute pathname. "
! "The string %p in the file name (if present) "
! "will be replaced by pid");
!
! PRODUCT_FLAG(intx, PerfDataSamplingInterval, 50, JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "Data sampling interval (in milliseconds)");
! //TODO: to avoid circular dependency, the min/max cannot be declared in header file
! //FLAG_RANGE( PerfDataSamplingInterval, PeriodicTask::min_interval, max_jint);
! FLAG_CONSTRAINT( PerfDataSamplingInterval, (void*)PerfDataSamplingIntervalFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(bool, PerfDisableSharedMem, false, JVMFlag::DEFAULT,
! "Store performance data in standard memory");
!
! PRODUCT_FLAG(intx, PerfDataMemorySize, 32*K, JVMFlag::RANGE,
! "Size of performance data memory region. Will be rounded "
! "up to a multiple of the native os page size.");
! FLAG_RANGE( PerfDataMemorySize, 128, 32*64*K);
!
! PRODUCT_FLAG(intx, PerfMaxStringConstLength, 1024, JVMFlag::RANGE,
! "Maximum PerfStringConstant string length before truncation");
! FLAG_RANGE( PerfMaxStringConstLength, 32, 32*K);
!
! PRODUCT_FLAG(bool, PerfAllowAtExitRegistration, false, JVMFlag::DEFAULT,
! "Allow registration of atexit() methods");
!
! PRODUCT_FLAG(bool, PerfBypassFileSystemCheck, false, JVMFlag::DEFAULT,
! "Bypass Win32 file system criteria checks (Windows Only)");
!
! PRODUCT_FLAG(intx, UnguardOnExecutionViolation, 0, JVMFlag::RANGE,
! "Unguard page and retry on no-execute fault (Win32 only) "
! "0=off, 1=conservative, 2=aggressive");
! FLAG_RANGE( UnguardOnExecutionViolation, 0, 2);
!
!
! // Serviceability Support
! PRODUCT_FLAG(bool, ManagementServer, false, JVMFlag::DEFAULT,
! "Create JMX Management Server");
!
! PRODUCT_FLAG(bool, DisableAttachMechanism, false, JVMFlag::DEFAULT,
! "Disable mechanism that allows tools to attach to this VM");
!
! PRODUCT_FLAG(bool, StartAttachListener, false, JVMFlag::DEFAULT,
! "Always start Attach Listener at VM startup");
!
! PRODUCT_FLAG(bool, EnableDynamicAgentLoading, true, JVMFlag::DEFAULT,
! "Allow tools to load agents with the attach mechanism");
!
! PRODUCT_FLAG(bool, PrintConcurrentLocks, false, JVMFlag::MANAGEABLE,
! "Print java.util.concurrent locks in thread dump");
!
!
! // Shared spaces
! PRODUCT_FLAG(bool, UseSharedSpaces, true, JVMFlag::DEFAULT,
! "Use shared spaces for metadata");
!
! PRODUCT_FLAG(bool, VerifySharedSpaces, false, JVMFlag::DEFAULT,
! "Verify integrity of shared spaces");
!
! PRODUCT_FLAG(bool, RequireSharedSpaces, false, JVMFlag::DEFAULT,
! "Require shared spaces for metadata");
!
! PRODUCT_FLAG(bool, DumpSharedSpaces, false, JVMFlag::DEFAULT,
! "Special mode: JVM reads a class list, loads classes, builds "
! "shared spaces, and dumps the shared spaces to a file to be "
! "used in future JVM runs");
!
! PRODUCT_FLAG(bool, DynamicDumpSharedSpaces, false, JVMFlag::DEFAULT,
! "Dynamic archive");
!
! PRODUCT_FLAG(bool, PrintSharedArchiveAndExit, false, JVMFlag::DEFAULT,
! "Print shared archive file contents");
!
! PRODUCT_FLAG(bool, PrintSharedDictionary, false, JVMFlag::DEFAULT,
! "If PrintSharedArchiveAndExit is true, also print the shared "
! "dictionary");
!
! PRODUCT_FLAG(size_t, SharedBaseAddress, LP64_ONLY(32*G)NOT_LP64(LINUX_ONLY(2*G) NOT_LINUX(0)), JVMFlag::RANGE,
! "Address to allocate shared memory region for class data");
! FLAG_RANGE( SharedBaseAddress, 0, SIZE_MAX);
!
! PRODUCT_FLAG(ccstr, SharedArchiveConfigFile, NULL, JVMFlag::DEFAULT,
! "Data to add to the CDS archive file");
!
! PRODUCT_FLAG(uintx, SharedSymbolTableBucketSize, 4, JVMFlag::RANGE,
! "Average number of symbols per bucket in shared table");
! FLAG_RANGE( SharedSymbolTableBucketSize, 2, 246);
!
! PRODUCT_FLAG(bool, AllowArchivingWithJavaAgent, false, JVMFlag::DIAGNOSTIC,
! "Allow Java agent to be run with CDS dumping");
!
! PRODUCT_FLAG(bool, PrintMethodHandleStubs, false, JVMFlag::DIAGNOSTIC,
! "Print generated stub code for method handles");
!
! DEVELOP_FLAG(bool, TraceMethodHandles, false, JVMFlag::DEFAULT,
! "trace internal method handle operations");
!
! PRODUCT_FLAG(bool, VerifyMethodHandles, trueInDebug, JVMFlag::DIAGNOSTIC,
! "perform extra checks when constructing method handles");
!
! PRODUCT_FLAG(bool, ShowHiddenFrames, false, JVMFlag::DIAGNOSTIC,
! "show method handle implementation frames (usually hidden)");
!
! PRODUCT_FLAG(bool, TrustFinalNonStaticFields, false, JVMFlag::EXPERIMENTAL,
! "trust final non-static declarations for constant folding");
!
! PRODUCT_FLAG(bool, FoldStableValues, true, JVMFlag::DIAGNOSTIC,
! "Optimize loads from stable fields (marked w/ @Stable)");
!
! DEVELOP_FLAG(bool, TraceInvokeDynamic, false, JVMFlag::DEFAULT,
! "trace internal invoke dynamic operations");
!
! PRODUCT_FLAG(int, UseBootstrapCallInfo, 1, JVMFlag::DIAGNOSTIC,
! "0: when resolving InDy or ConDy, force all BSM arguments to be "
! "resolved before the bootstrap method is called; 1: when a BSM "
! "that may accept a BootstrapCallInfo is detected, use that API "
! "to pass BSM arguments, which allows the BSM to delay their "
! "resolution; 2+: stress test the BCI API by calling more BSMs "
! "via that API, instead of with the eagerly-resolved array.");
!
! PRODUCT_FLAG(bool, PauseAtStartup, false, JVMFlag::DIAGNOSTIC,
! "Causes the VM to pause at startup time and wait for the pause "
! "file to be removed (default: ./vm.paused.<pid>)");
!
! PRODUCT_FLAG(ccstr, PauseAtStartupFile, NULL, JVMFlag::DIAGNOSTIC,
! "The file to create and for whose removal to await when pausing "
! "at startup. (default: ./vm.paused.<pid>)");
!
! PRODUCT_FLAG(bool, PauseAtExit, false, JVMFlag::DIAGNOSTIC,
! "Pause and wait for keypress on exit if a debugger is attached");
!
! PRODUCT_FLAG(bool, ExtendedDTraceProbes, false, JVMFlag::DEFAULT,
! "Enable performance-impacting dtrace probes");
!
! PRODUCT_FLAG(bool, DTraceMethodProbes, false, JVMFlag::DEFAULT,
! "Enable dtrace probes for method-entry and method-exit");
!
! PRODUCT_FLAG(bool, DTraceAllocProbes, false, JVMFlag::DEFAULT,
! "Enable dtrace probes for object allocation");
!
! PRODUCT_FLAG(bool, DTraceMonitorProbes, false, JVMFlag::DEFAULT,
! "Enable dtrace probes for monitor events");
!
! PRODUCT_FLAG(bool, RelaxAccessControlCheck, false, JVMFlag::DEFAULT,
! "Relax the access control checks in the verifier");
!
! PRODUCT_FLAG(uintx, StringTableSize, defaultStringTableSize, JVMFlag::RANGE,
! "Number of buckets in the interned String table "
! "(will be rounded to nearest higher power of 2)");
! FLAG_RANGE( StringTableSize, minimumStringTableSize, 16777216ul);
!
! PRODUCT_FLAG(uintx, SymbolTableSize, defaultSymbolTableSize, JVMFlag::EXPERIMENTAL | JVMFlag::RANGE,
! "Number of buckets in the JVM internal Symbol table");
! FLAG_RANGE( SymbolTableSize, minimumSymbolTableSize, 16777216ul);
!
! PRODUCT_FLAG(bool, UseStringDeduplication, false, JVMFlag::DEFAULT,
! "Use string deduplication");
!
! PRODUCT_FLAG(uintx, StringDeduplicationAgeThreshold, 3, JVMFlag::RANGE,
! "A string must reach this age (or be promoted to an old region) "
! "to be considered for deduplication");
! //TODO: to avoid circular dependency, the min/max cannot be declared in header file
! //FLAG_RANGE( StringDeduplicationAgeThreshold, 1, markWord::max_age);
!
! PRODUCT_FLAG(bool, StringDeduplicationResizeALot, false, JVMFlag::DIAGNOSTIC,
! "Force table resize every time the table is scanned");
!
! PRODUCT_FLAG(bool, StringDeduplicationRehashALot, false, JVMFlag::DIAGNOSTIC,
! "Force table rehash every time the table is scanned");
!
! PRODUCT_FLAG(bool, WhiteBoxAPI, false, JVMFlag::DIAGNOSTIC,
! "Enable internal testing APIs");
!
! PRODUCT_FLAG(intx, SurvivorAlignmentInBytes, 0, JVMFlag::EXPERIMENTAL | JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "Default survivor space alignment in bytes");
! FLAG_RANGE( SurvivorAlignmentInBytes, 8, 256);
! FLAG_CONSTRAINT( SurvivorAlignmentInBytes, (void*)SurvivorAlignmentInBytesConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(ccstr, DumpLoadedClassList, NULL, JVMFlag::DEFAULT,
! "Dump the names all loaded classes, that could be stored into "
! "the CDS archive, in the specified file");
!
! PRODUCT_FLAG(ccstr, SharedClassListFile, NULL, JVMFlag::DEFAULT,
! "Override the default CDS class list");
!
! PRODUCT_FLAG(ccstr, SharedArchiveFile, NULL, JVMFlag::DEFAULT,
! "Override the default location of the CDS archive file");
!
! PRODUCT_FLAG(ccstr, ArchiveClassesAtExit, NULL, JVMFlag::DEFAULT,
! "The path and name of the dynamic archive file");
!
! PRODUCT_FLAG(ccstr, ExtraSharedClassListFile, NULL, JVMFlag::DEFAULT,
! "Extra classlist for building the CDS archive file");
!
! PRODUCT_FLAG(intx, ArchiveRelocationMode, 0, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE,
! "(0) first map at preferred address, and if "
! "unsuccessful, map at alternative address (default); "
! "(1) always map at alternative address; "
! "(2) always map at preferred address, and if unsuccessful, "
! "do not map the archive");
! FLAG_RANGE( ArchiveRelocationMode, 0, 2);
!
! PRODUCT_FLAG(size_t, ArrayAllocatorMallocLimit, SOLARIS_ONLY(64*K) NOT_SOLARIS((size_t)-1), JVMFlag::EXPERIMENTAL,
! "Allocation less than this value will be allocated "
! "using malloc. Larger allocations will use mmap.");
!
! PRODUCT_FLAG(bool, AlwaysAtomicAccesses, false, JVMFlag::EXPERIMENTAL,
! "Accesses to all variables should always be atomic");
!
! PRODUCT_FLAG(bool, UseUnalignedAccesses, false, JVMFlag::DIAGNOSTIC,
! "Use unaligned memory accesses in Unsafe");
!
! PRODUCT_FLAG_PD(bool, PreserveFramePointer, JVMFlag::DEFAULT,
! "Use the FP register for holding the frame pointer "
! "and not as a general purpose register.");
!
! PRODUCT_FLAG(bool, CheckIntrinsics, true, JVMFlag::DIAGNOSTIC,
! "When a class C is loaded, check that "
! "(1) all intrinsics defined by the VM for class C are present "
! "in the loaded class file and are marked with the "
! "@HotSpotIntrinsicCandidate annotation, that "
! "(2) there is an intrinsic registered for all loaded methods "
! "that are annotated with the @HotSpotIntrinsicCandidate "
! "annotation, and that "
! "(3) no orphan methods exist for class C (i.e., methods for "
! "which the VM declares an intrinsic but that are not declared "
! "in the loaded class C. "
! "Check (3) is available only in debug builds.");
!
! PRODUCT_FLAG_PD(intx, InitArrayShortSize, JVMFlag::DIAGNOSTIC | JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "Threshold small size (in bytes) for clearing arrays. "
! "Anything this size or smaller may get converted to discrete "
! "scalar stores.");
! FLAG_RANGE( InitArrayShortSize, 0, max_intx);
! FLAG_CONSTRAINT( InitArrayShortSize, (void*)InitArrayShortSizeConstraintFunc, JVMFlag::AfterErgo);
!
! PRODUCT_FLAG(bool, CompilerDirectivesIgnoreCompileCommands, false, JVMFlag::DIAGNOSTIC,
! "Disable backwards compatibility for compile commands.");
!
! PRODUCT_FLAG(bool, CompilerDirectivesPrint, false, JVMFlag::DIAGNOSTIC,
! "Print compiler directives on installation.");
!
! PRODUCT_FLAG(int, CompilerDirectivesLimit, 50, JVMFlag::DIAGNOSTIC,
! "Limit on number of compiler directives.");
!
! PRODUCT_FLAG(ccstr, AllocateHeapAt, NULL, JVMFlag::DEFAULT,
! "Path to the directoy where a temporary file will be created "
! "to use as the backing store for Java Heap.");
!
! PRODUCT_FLAG(ccstr, AllocateOldGenAt, NULL, JVMFlag::EXPERIMENTAL,
! "Path to the directoy where a temporary file will be "
! "created to use as the backing store for old generation."
! "File of size Xmx is pre-allocated for performance reason, so"
! "we need that much space available");
!
! DEVELOP_FLAG(int, VerifyMetaspaceInterval, DEBUG_ONLY(500) NOT_DEBUG(0), JVMFlag::DEFAULT,
! "Run periodic metaspace verifications (0 - none, "
! "1 - always, >1 every nth interval)");
!
! PRODUCT_FLAG(bool, ShowRegistersOnAssert, true, JVMFlag::DIAGNOSTIC,
! "On internal errors, include registers in error report.");
!
! PRODUCT_FLAG(bool, UseSwitchProfiling, true, JVMFlag::DIAGNOSTIC,
! "leverage profiling for table/lookup switch");
!
! DEVELOP_FLAG(bool, TraceMemoryWriteback, false, JVMFlag::DEFAULT,
! "Trace memory writeback operations");
!
! JFR_ONLY(PRODUCT_FLAG(bool, FlightRecorder, false, JVMFlag::DEFAULT,
! "(Deprecated) Enable Flight Recorder");)
!
! JFR_ONLY(PRODUCT_FLAG(ccstr, FlightRecorderOptions, NULL, JVMFlag::DEFAULT,
! "Flight Recorder options");)
!
! JFR_ONLY(PRODUCT_FLAG(ccstr, StartFlightRecording, NULL, JVMFlag::DEFAULT,
! "Start flight recording with options");)
!
! PRODUCT_FLAG(bool, UseFastUnorderedTimeStamps, false, JVMFlag::EXPERIMENTAL,
! "Use platform unstable time where supported for timestamps only");
!
! PRODUCT_FLAG(bool, UseNewFieldLayout, true, JVMFlag::DEFAULT,
! "(Deprecated) Use new algorithm to compute field layouts");
!
! PRODUCT_FLAG(bool, UseEmptySlotsInSupers, true, JVMFlag::DEFAULT,
! "Allow allocating fields in empty slots of super-classes");
!
!
! #ifdef _LP64
! PRODUCT_FLAG(bool, UseCompressedOops, false, JVMFlag::LP64,
! "Use 32-bit object references in 64-bit VM. "
! "lp64_product means flag is always constant in 32 bit VM");
!
! PRODUCT_FLAG(bool, UseCompressedClassPointers, false, JVMFlag::LP64,
! "Use 32-bit class pointers in 64-bit VM. "
! "lp64_product means flag is always constant in 32 bit VM");
!
! PRODUCT_FLAG(intx, ObjectAlignmentInBytes, 8, JVMFlag::LP64 | JVMFlag::RANGE | JVMFlag::CONSTRAINT,
! "Default object alignment in bytes, 8 is minimum");
! FLAG_RANGE( ObjectAlignmentInBytes, 8, 256);
! FLAG_CONSTRAINT( ObjectAlignmentInBytes, (void*)ObjectAlignmentInBytesConstraintFunc, JVMFlag::AtParse);
!
! #elif defined(IS_DECLARING_FLAG)
! const bool UseCompressedOops = false; // !JVMFlag::LP64
! const bool UseCompressedClassPointers = false; // !JVMFlag::LP64
! const intx ObjectAlignmentInBytes = 8; // !JVMFlag::LP64
! #endif // _LP64
#endif // SHARE_RUNTIME_GLOBALS_HPP
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