78 typedef struct { 79 const char* typeName; // Type name (example: "Method") 80 const char* superclassName; // Superclass name, or null if none (example: "oopDesc") 81 int32_t isOopType; // Does this type represent an oop typedef? (i.e., "Method*" or 82 // "Klass*", but NOT "Method") 83 int32_t isIntegerType; // Does this type represent an integer type (of arbitrary size)? 84 int32_t isUnsigned; // If so, is it unsigned? 85 uint64_t size; // Size, in bytes, of the type 86 } VMTypeEntry; 87 88 typedef struct { 89 const char* name; // Name of constant (example: "_thread_in_native") 90 int32_t value; // Value of constant 91 } VMIntConstantEntry; 92 93 typedef struct { 94 const char* name; // Name of constant (example: "_thread_in_native") 95 uint64_t value; // Value of constant 96 } VMLongConstantEntry; 97 98 // This class is a friend of most classes, to be able to access 99 // private fields 100 class VMStructs { 101 public: 102 // The last entry is identified over in the serviceability agent by 103 // the fact that it has a NULL fieldName 104 static VMStructEntry localHotSpotVMStructs[]; 105 106 // The last entry is identified over in the serviceability agent by 107 // the fact that it has a NULL typeName 108 static VMTypeEntry localHotSpotVMTypes[]; 109 110 // Table of integer constants required by the serviceability agent. 111 // The last entry is identified over in the serviceability agent by 112 // the fact that it has a NULL typeName 113 static VMIntConstantEntry localHotSpotVMIntConstants[]; 114 115 // Table of long constants required by the serviceability agent. 116 // The last entry is identified over in the serviceability agent by 117 // the fact that it has a NULL typeName 118 static VMLongConstantEntry localHotSpotVMLongConstants[]; 119 120 // This is used to run any checking code necessary for validation of 121 // the data structure (debug build only) 122 static void init(); 123 124 #ifndef PRODUCT 125 // Execute unit tests 126 static void test(); 127 #endif 128 129 private: 130 // Look up a type in localHotSpotVMTypes using strcmp() (debug build only). 131 // Returns 1 if found, 0 if not. 132 // debug_only(static int findType(const char* typeName);) 133 static int findType(const char* typeName); 134 }; 135 136 #endif // SHARE_VM_RUNTIME_VMSTRUCTS_HPP | 78 typedef struct { 79 const char* typeName; // Type name (example: "Method") 80 const char* superclassName; // Superclass name, or null if none (example: "oopDesc") 81 int32_t isOopType; // Does this type represent an oop typedef? (i.e., "Method*" or 82 // "Klass*", but NOT "Method") 83 int32_t isIntegerType; // Does this type represent an integer type (of arbitrary size)? 84 int32_t isUnsigned; // If so, is it unsigned? 85 uint64_t size; // Size, in bytes, of the type 86 } VMTypeEntry; 87 88 typedef struct { 89 const char* name; // Name of constant (example: "_thread_in_native") 90 int32_t value; // Value of constant 91 } VMIntConstantEntry; 92 93 typedef struct { 94 const char* name; // Name of constant (example: "_thread_in_native") 95 uint64_t value; // Value of constant 96 } VMLongConstantEntry; 97 98 typedef struct { 99 const char* name; // Name of address (example: "SharedRuntime::register_finalizer") 100 void* value; // Value of address 101 } VMAddressEntry; 102 103 // This class is a friend of most classes, to be able to access 104 // private fields 105 class VMStructs { 106 public: 107 // The last entry is identified over in the serviceability agent by 108 // the fact that it has a NULL fieldName 109 static VMStructEntry localHotSpotVMStructs[]; 110 111 // The last entry is identified over in the serviceability agent by 112 // the fact that it has a NULL typeName 113 static VMTypeEntry localHotSpotVMTypes[]; 114 115 // Table of integer constants required by the serviceability agent. 116 // The last entry is identified over in the serviceability agent by 117 // the fact that it has a NULL typeName 118 static VMIntConstantEntry localHotSpotVMIntConstants[]; 119 120 // Table of long constants required by the serviceability agent. 121 // The last entry is identified over in the serviceability agent by 122 // the fact that it has a NULL typeName 123 static VMLongConstantEntry localHotSpotVMLongConstants[]; 124 125 /** 126 * Table of addresses. 127 */ 128 static VMAddressEntry localHotSpotVMAddresses[]; 129 130 // This is used to run any checking code necessary for validation of 131 // the data structure (debug build only) 132 static void init(); 133 134 #ifndef PRODUCT 135 // Execute unit tests 136 static void test(); 137 #endif 138 139 private: 140 // Look up a type in localHotSpotVMTypes using strcmp() (debug build only). 141 // Returns 1 if found, 0 if not. 142 // debug_only(static int findType(const char* typeName);) 143 static int findType(const char* typeName); 144 }; 145 146 #endif // SHARE_VM_RUNTIME_VMSTRUCTS_HPP |