768 range(min_intx, max_intx) \
769 \
770 product(bool, EagerXrunInit, false, \
771 "Eagerly initialize -Xrun libraries; allows startup profiling, " \
772 "but not all -Xrun libraries may support the state of the VM " \
773 "at this time") \
774 \
775 product(bool, PreserveAllAnnotations, false, \
776 "Preserve RuntimeInvisibleAnnotations as well " \
777 "as RuntimeVisibleAnnotations") \
778 \
779 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \
780 "Number of OutOfMemoryErrors preallocated with backtrace") \
781 \
782 product(bool, UseXMMForArrayCopy, false, \
783 "Use SSE2 MOVQ instruction for Arraycopy") \
784 \
785 notproduct(bool, PrintFieldLayout, false, \
786 "Print field layout for each class") \
787 \
788 /* Need to limit the extent of the padding to reasonable size. */\
789 /* 8K is well beyond the reasonable HW cache line size, even with */\
790 /* aggressive prefetching, while still leaving the room for segregating */\
791 /* among the distinct pages. */\
792 product(intx, ContendedPaddingWidth, 128, \
793 "How many bytes to pad the fields/classes marked @Contended with")\
794 range(0, 8192) \
795 constraint(ContendedPaddingWidthConstraintFunc,AfterErgo) \
796 \
797 product(bool, EnableContended, true, \
798 "Enable @Contended annotation support") \
799 \
800 product(bool, RestrictContended, true, \
801 "Restrict @Contended to trusted classes") \
802 \
803 product(int, DiagnoseSyncOnValueBasedClasses, 0, DIAGNOSTIC, \
804 "Detect and take action upon identifying synchronization on " \
805 "value based classes. Modes: " \
806 "0: off; " \
807 "1: exit with fatal error; " \
1959 "On internal errors, include registers in error report.") \
1960 \
1961 product(bool, UseSwitchProfiling, true, DIAGNOSTIC, \
1962 "leverage profiling for table/lookup switch") \
1963 \
1964 develop(bool, TraceMemoryWriteback, false, \
1965 "Trace memory writeback operations") \
1966 \
1967 JFR_ONLY(product(bool, FlightRecorder, false, \
1968 "(Deprecated) Enable Flight Recorder")) \
1969 \
1970 JFR_ONLY(product(ccstr, FlightRecorderOptions, NULL, \
1971 "Flight Recorder options")) \
1972 \
1973 JFR_ONLY(product(ccstr, StartFlightRecording, NULL, \
1974 "Start flight recording with options")) \
1975 \
1976 product(bool, UseFastUnorderedTimeStamps, false, EXPERIMENTAL, \
1977 "Use platform unstable time where supported for timestamps only") \
1978 \
1979 product(bool, UseEmptySlotsInSupers, true, \
1980 "Allow allocating fields in empty slots of super-classes") \
1981 \
1982 product(bool, DeoptimizeNMethodBarriersALot, false, DIAGNOSTIC, \
1983 "Make nmethod barriers deoptimise a lot.") \
1984 \
1985 develop(bool, VerifyCrossModifyFence, \
1986 false AARCH64_ONLY(DEBUG_ONLY(||true)), \
1987 "Mark all threads after a safepoint, and clear on a modify " \
1988 "fence. Add cleanliness checks.") \
1989 \
1990 develop(bool, TraceOptimizedUpcallStubs, false, \
1991 "Trace optimized upcall stub generation") \
1992
1993 // end of RUNTIME_FLAGS
1994
1995 DECLARE_FLAGS(LP64_RUNTIME_FLAGS)
1996 DECLARE_ARCH_FLAGS(ARCH_FLAGS)
1997 DECLARE_FLAGS(RUNTIME_FLAGS)
1998 DECLARE_FLAGS(RUNTIME_OS_FLAGS)
|
768 range(min_intx, max_intx) \
769 \
770 product(bool, EagerXrunInit, false, \
771 "Eagerly initialize -Xrun libraries; allows startup profiling, " \
772 "but not all -Xrun libraries may support the state of the VM " \
773 "at this time") \
774 \
775 product(bool, PreserveAllAnnotations, false, \
776 "Preserve RuntimeInvisibleAnnotations as well " \
777 "as RuntimeVisibleAnnotations") \
778 \
779 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \
780 "Number of OutOfMemoryErrors preallocated with backtrace") \
781 \
782 product(bool, UseXMMForArrayCopy, false, \
783 "Use SSE2 MOVQ instruction for Arraycopy") \
784 \
785 notproduct(bool, PrintFieldLayout, false, \
786 "Print field layout for each class") \
787 \
788 notproduct(bool, PrintInlineLayout, false, \
789 "Print field layout for each inline type") \
790 \
791 notproduct(bool, PrintFlatArrayLayout, false, \
792 "Print array layout for each inline type array") \
793 \
794 product(intx, FlatArrayElementMaxSize, -1, \
795 "Max size for flattening inline array elements, <0 no limit") \
796 \
797 product(intx, InlineFieldMaxFlatSize, 128, \
798 "Max size for flattening inline type fields, <0 no limit") \
799 \
800 product(intx, FlatArrayElementMaxOops, 4, \
801 "Max nof embedded object references in an inline type to flatten, <0 no limit") \
802 \
803 product(bool, InlineArrayAtomicAccess, false, \
804 "Atomic inline array accesses by-default, for all inline arrays") \
805 \
806 /* Need to limit the extent of the padding to reasonable size. */\
807 /* 8K is well beyond the reasonable HW cache line size, even with */\
808 /* aggressive prefetching, while still leaving the room for segregating */\
809 /* among the distinct pages. */\
810 product(intx, ContendedPaddingWidth, 128, \
811 "How many bytes to pad the fields/classes marked @Contended with")\
812 range(0, 8192) \
813 constraint(ContendedPaddingWidthConstraintFunc,AfterErgo) \
814 \
815 product(bool, EnableContended, true, \
816 "Enable @Contended annotation support") \
817 \
818 product(bool, RestrictContended, true, \
819 "Restrict @Contended to trusted classes") \
820 \
821 product(int, DiagnoseSyncOnValueBasedClasses, 0, DIAGNOSTIC, \
822 "Detect and take action upon identifying synchronization on " \
823 "value based classes. Modes: " \
824 "0: off; " \
825 "1: exit with fatal error; " \
1977 "On internal errors, include registers in error report.") \
1978 \
1979 product(bool, UseSwitchProfiling, true, DIAGNOSTIC, \
1980 "leverage profiling for table/lookup switch") \
1981 \
1982 develop(bool, TraceMemoryWriteback, false, \
1983 "Trace memory writeback operations") \
1984 \
1985 JFR_ONLY(product(bool, FlightRecorder, false, \
1986 "(Deprecated) Enable Flight Recorder")) \
1987 \
1988 JFR_ONLY(product(ccstr, FlightRecorderOptions, NULL, \
1989 "Flight Recorder options")) \
1990 \
1991 JFR_ONLY(product(ccstr, StartFlightRecording, NULL, \
1992 "Start flight recording with options")) \
1993 \
1994 product(bool, UseFastUnorderedTimeStamps, false, EXPERIMENTAL, \
1995 "Use platform unstable time where supported for timestamps only") \
1996 \
1997 product(bool, EnableValhalla, true, \
1998 "Enable experimental Valhalla features") \
1999 \
2000 product_pd(bool, InlineTypePassFieldsAsArgs, \
2001 "Pass each inline type field as an argument at calls") \
2002 \
2003 product_pd(bool, InlineTypeReturnedAsFields, \
2004 "Return fields instead of an inline type reference") \
2005 \
2006 develop(bool, StressInlineTypeReturnedAsFields, false, \
2007 "Stress return of fields instead of an inline type reference") \
2008 \
2009 product(bool, UseArrayMarkWordCheck, NOT_LP64(false) LP64_ONLY(true), \
2010 "Use bits in the mark word to check for flat/null-free arrays") \
2011 \
2012 product(ccstrlist, ForceNonTearable, "", DIAGNOSTIC, \
2013 "List of inline classes which are forced to be atomic " \
2014 "(whitespace and commas separate names, " \
2015 "and leading and trailing stars '*' are wildcards)") \
2016 \
2017 product(bool, UseEmptySlotsInSupers, true, \
2018 "Allow allocating fields in empty slots of super-classes") \
2019 \
2020 product(bool, DeoptimizeNMethodBarriersALot, false, DIAGNOSTIC, \
2021 "Make nmethod barriers deoptimise a lot.") \
2022 \
2023 develop(bool, VerifyCrossModifyFence, \
2024 false AARCH64_ONLY(DEBUG_ONLY(||true)), \
2025 "Mark all threads after a safepoint, and clear on a modify " \
2026 "fence. Add cleanliness checks.") \
2027 \
2028 develop(bool, TraceOptimizedUpcallStubs, false, \
2029 "Trace optimized upcall stub generation") \
2030
2031 // end of RUNTIME_FLAGS
2032
2033 DECLARE_FLAGS(LP64_RUNTIME_FLAGS)
2034 DECLARE_ARCH_FLAGS(ARCH_FLAGS)
2035 DECLARE_FLAGS(RUNTIME_FLAGS)
2036 DECLARE_FLAGS(RUNTIME_OS_FLAGS)
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