108 // Default and minimum StringTable and SymbolTable size values
109 // Must be powers of 2
110 const size_t defaultStringTableSize = NOT_LP64(1024) LP64_ONLY(65536);
111 const size_t minimumStringTableSize = 128;
112 const size_t defaultSymbolTableSize = 32768; // 2^15
113 const size_t minimumSymbolTableSize = 1024;
114
115 #ifdef _LP64
116 #define LP64_RUNTIME_FLAGS(develop, \
117 develop_pd, \
118 product, \
119 product_pd, \
120 notproduct, \
121 range, \
122 constraint) \
123 \
124 product(bool, UseCompressedOops, false, \
125 "Use 32-bit object references in 64-bit VM. " \
126 "lp64_product means flag is always constant in 32 bit VM") \
127 \
128 product(bool, UseCompressedClassPointers, false, \
129 "Use 32-bit class pointers in 64-bit VM. " \
130 "lp64_product means flag is always constant in 32 bit VM") \
131 \
132 product(intx, ObjectAlignmentInBytes, 8, \
133 "Default object alignment in bytes, 8 is minimum") \
134 range(8, 256) \
135 constraint(ObjectAlignmentInBytesConstraintFunc, AtParse)
136
137 #else
138 // !_LP64
139
140 #define LP64_RUNTIME_FLAGS(develop, \
141 develop_pd, \
142 product, \
143 product_pd, \
144 notproduct, \
145 range, \
146 constraint)
147 const bool UseCompressedOops = false;
148 const bool UseCompressedClassPointers = false;
2026 JFR_ONLY(product(ccstr, FlightRecorderOptions, NULL, \
2027 "Flight Recorder options")) \
2028 \
2029 JFR_ONLY(product(ccstr, StartFlightRecording, NULL, \
2030 "Start flight recording with options")) \
2031 \
2032 product(bool, UseFastUnorderedTimeStamps, false, EXPERIMENTAL, \
2033 "Use platform unstable time where supported for timestamps only") \
2034 \
2035 product(bool, UseEmptySlotsInSupers, true, \
2036 "Allow allocating fields in empty slots of super-classes") \
2037 \
2038 product(bool, DeoptimizeNMethodBarriersALot, false, DIAGNOSTIC, \
2039 "Make nmethod barriers deoptimise a lot.") \
2040 \
2041 develop(bool, VerifyCrossModifyFence, \
2042 false AARCH64_ONLY(DEBUG_ONLY(||true)), \
2043 "Mark all threads after a safepoint, and clear on a modify " \
2044 "fence. Add cleanliness checks.") \
2045 \
2046 develop(bool, TraceOptimizedUpcallStubs, false, \
2047 "Trace optimized upcall stub generation") \
2048
2049 // end of RUNTIME_FLAGS
2050
2051 DECLARE_FLAGS(LP64_RUNTIME_FLAGS)
2052 DECLARE_ARCH_FLAGS(ARCH_FLAGS)
2053 DECLARE_FLAGS(RUNTIME_FLAGS)
2054 DECLARE_FLAGS(RUNTIME_OS_FLAGS)
2055
2056 #endif // SHARE_RUNTIME_GLOBALS_HPP
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108 // Default and minimum StringTable and SymbolTable size values
109 // Must be powers of 2
110 const size_t defaultStringTableSize = NOT_LP64(1024) LP64_ONLY(65536);
111 const size_t minimumStringTableSize = 128;
112 const size_t defaultSymbolTableSize = 32768; // 2^15
113 const size_t minimumSymbolTableSize = 1024;
114
115 #ifdef _LP64
116 #define LP64_RUNTIME_FLAGS(develop, \
117 develop_pd, \
118 product, \
119 product_pd, \
120 notproduct, \
121 range, \
122 constraint) \
123 \
124 product(bool, UseCompressedOops, false, \
125 "Use 32-bit object references in 64-bit VM. " \
126 "lp64_product means flag is always constant in 32 bit VM") \
127 \
128 product(bool, UseCompressedClassPointers, true, \
129 "Use 32-bit class pointers in 64-bit VM. " \
130 "lp64_product means flag is always constant in 32 bit VM") \
131 \
132 product(intx, ObjectAlignmentInBytes, 8, \
133 "Default object alignment in bytes, 8 is minimum") \
134 range(8, 256) \
135 constraint(ObjectAlignmentInBytesConstraintFunc, AtParse)
136
137 #else
138 // !_LP64
139
140 #define LP64_RUNTIME_FLAGS(develop, \
141 develop_pd, \
142 product, \
143 product_pd, \
144 notproduct, \
145 range, \
146 constraint)
147 const bool UseCompressedOops = false;
148 const bool UseCompressedClassPointers = false;
2026 JFR_ONLY(product(ccstr, FlightRecorderOptions, NULL, \
2027 "Flight Recorder options")) \
2028 \
2029 JFR_ONLY(product(ccstr, StartFlightRecording, NULL, \
2030 "Start flight recording with options")) \
2031 \
2032 product(bool, UseFastUnorderedTimeStamps, false, EXPERIMENTAL, \
2033 "Use platform unstable time where supported for timestamps only") \
2034 \
2035 product(bool, UseEmptySlotsInSupers, true, \
2036 "Allow allocating fields in empty slots of super-classes") \
2037 \
2038 product(bool, DeoptimizeNMethodBarriersALot, false, DIAGNOSTIC, \
2039 "Make nmethod barriers deoptimise a lot.") \
2040 \
2041 develop(bool, VerifyCrossModifyFence, \
2042 false AARCH64_ONLY(DEBUG_ONLY(||true)), \
2043 "Mark all threads after a safepoint, and clear on a modify " \
2044 "fence. Add cleanliness checks.") \
2045 \
2046 product(bool, HeapObjectStats, false, DIAGNOSTIC, \
2047 "Enable gathering of heap object statistics") \
2048 \
2049 product(size_t, HeapObjectStatsSamplingInterval, 500, DIAGNOSTIC, \
2050 "Heap object statistics sampling interval (ms)") \
2051 \
2052 develop(bool, TraceOptimizedUpcallStubs, false, \
2053 "Trace optimized upcall stub generation") \
2054
2055 // end of RUNTIME_FLAGS
2056
2057 DECLARE_FLAGS(LP64_RUNTIME_FLAGS)
2058 DECLARE_ARCH_FLAGS(ARCH_FLAGS)
2059 DECLARE_FLAGS(RUNTIME_FLAGS)
2060 DECLARE_FLAGS(RUNTIME_OS_FLAGS)
2061
2062 #endif // SHARE_RUNTIME_GLOBALS_HPP
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