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comparison src/share/vm/graal/graalVmIds.hpp @ 3632:136ea96eb7f8

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Remove the need for VmId (last usage was the constant pool).
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Mon, 14 Nov 2011 22:33:15 +0100
parents f00918f35c7f
children 076542d505cd
comparison
equal deleted inserted replaced
3630:3b18b27b0dd4 3632:136ea96eb7f8
31 31
32 class VmIds : public AllStatic { 32 class VmIds : public AllStatic {
33 33
34 private: 34 private:
35 static GrowableArray<address>* _stubs; 35 static GrowableArray<address>* _stubs;
36 static GrowableArray<jobject>* _localHandles;
37 36
38 static oop getObject(jlong id); 37 static oop getObject(jlong id);
39 38
40 public: 39 public:
41 // these constants needs to have the same values as the one in HotSpotProxy.java 40 // these constants needs to have the same values as the one in HotSpotProxy.java
47 static const jlong TYPE_MASK = 0xf00000000000000LL; 46 static const jlong TYPE_MASK = 0xf00000000000000LL;
48 static const jlong DUMMY_CONSTANT = 0x6ffffffffffffffLL; 47 static const jlong DUMMY_CONSTANT = 0x6ffffffffffffffLL;
49 48
50 // Initializes the VmIds for a compilation, by creating the arrays 49 // Initializes the VmIds for a compilation, by creating the arrays
51 static void initializeObjects(); 50 static void initializeObjects();
52 // Cleans up after a compilation, by deallocating the arrays
53 static void cleanupLocalObjects();
54 51
55 // Adds a stub address, and returns the corresponding vmId (which is of type STUB) 52 // Adds a stub address, and returns the corresponding vmId (which is of type STUB)
56 static jlong addStub(address stub); 53 static jlong addStub(address stub);
57 54
58 // Adds an object, and returns the corresponding vmId (with the given type)
59 static jlong add(Handle obj, jlong type);
60
61 // Adds an object, and returns the corresponding vmId (the type of which is determined by the template parameter)
62 template <typename T> static jlong add(T obj);
63
64
65 // Returns the stub address with the given vmId 55 // Returns the stub address with the given vmId
66 static address getStub(jlong id); 56 static address getStub(jlong id);
57
67 // Returns the stub address with the given vmId taken from a java.lang.Long 58 // Returns the stub address with the given vmId taken from a java.lang.Long
68 static address getStub(oop id); 59 static address getStub(oop id);
69
70 // Returns the object with the given id, the return type is defined by the template parameter (which must correspond to the actual type of the vmId)
71 template <typename T> static T get(jlong id);
72
73 60
74 // Helper function to convert a symbol to a java.lang.String object 61 // Helper function to convert a symbol to a java.lang.String object
75 template <typename T> static T toString(Symbol* symbol, TRAPS); 62 template <typename T> static T toString(Symbol* symbol, TRAPS);
76 63
77 // Helper function to convert a java.lang.String object to a symbol (this will return NULL if the symbol doesn't exist in the system) 64 // Helper function to convert a java.lang.String object to a symbol (this will return NULL if the symbol doesn't exist in the system)
79 66
80 // Helper function to get the contents of a java.lang.Long 67 // Helper function to get the contents of a java.lang.Long
81 static jlong getBoxedLong(oop obj); 68 static jlong getBoxedLong(oop obj);
82 }; 69 };
83 70
84
85 template <> inline jlong VmIds::add<klassOop>(klassOop obj) {
86 assert(obj != NULL, "trying to add NULL<klassOop>");
87 assert(obj->is_klass(), "trying to add mistyped object");
88 return add(Handle(obj), CLASS);
89 }
90 template <> inline jlong VmIds::add<constantPoolOop>(constantPoolOop obj) {
91 assert(obj != NULL, "trying to add NULL<constantPoolOop>");
92 assert(obj->is_constantPool(), "trying to add mistyped object");
93 return add(Handle(obj), CONSTANT_POOL);
94 }
95 template <> inline jlong VmIds::add<oop>(oop obj) {
96 assert(obj != NULL, "trying to add NULL<oop>");
97 assert(obj->is_oop(), "trying to add mistyped object");
98 return add(Handle(obj), CONSTANT);
99 }
100
101
102 template <> inline klassOop VmIds::get<klassOop>(jlong id) {
103 assert((id & TYPE_MASK) == CLASS, "CLASS expected");
104 assert(getObject(id)->is_klass(), "klassOop expected");
105 return (klassOop)getObject(id);
106 }
107 template <> inline constantPoolOop VmIds::get<constantPoolOop>(jlong id) {
108 assert((id & TYPE_MASK) == CONSTANT_POOL, "CONSTANT_POOL expected");
109 assert(getObject(id)->is_constantPool(), "constantPoolOop expected");
110 return (constantPoolOop)getObject(id);
111 }
112 template <> inline oop VmIds::get<oop>(jlong id) {
113 assert((id & TYPE_MASK) == CONSTANT, "CONSTANT expected");
114 assert(getObject(id)->is_oop(true), "oop expected");
115 return (oop)getObject(id);
116 }
117
118 inline address VmIds::getStub(oop obj) { 71 inline address VmIds::getStub(oop obj) {
119 return getStub(getBoxedLong(obj)); 72 return getStub(getBoxedLong(obj));
120 } 73 }
121 74
122 template <> inline Handle VmIds::toString<Handle>(Symbol* symbol, TRAPS) { 75 template <> inline Handle VmIds::toString<Handle>(Symbol* symbol, TRAPS) {
123 return java_lang_String::create_from_symbol(symbol, THREAD); 76 return java_lang_String::create_from_symbol(symbol, THREAD);
124 } 77 }
78
125 template <> inline oop VmIds::toString<oop>(Symbol* symbol, TRAPS) { 79 template <> inline oop VmIds::toString<oop>(Symbol* symbol, TRAPS) {
126 return toString<Handle>(symbol, THREAD)(); 80 return toString<Handle>(symbol, THREAD)();
127 } 81 }
82
128 template <> inline jstring VmIds::toString<jstring>(Symbol* symbol, TRAPS) { 83 template <> inline jstring VmIds::toString<jstring>(Symbol* symbol, TRAPS) {
129 return (jstring)JNIHandles::make_local(toString<oop>(symbol, THREAD)); 84 return (jstring)JNIHandles::make_local(toString<oop>(symbol, THREAD));
130 } 85 }
86
131 template <> inline jobject VmIds::toString<jobject>(Symbol* symbol, TRAPS) { 87 template <> inline jobject VmIds::toString<jobject>(Symbol* symbol, TRAPS) {
132 return JNIHandles::make_local(toString<oop>(symbol, THREAD)); 88 return JNIHandles::make_local(toString<oop>(symbol, THREAD));
133 } 89 }
134 90
135 inline Symbol* VmIds::toSymbol(jstring string) { 91 inline Symbol* VmIds::toSymbol(jstring string) {