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comparison src/share/vm/prims/methodHandleWalk.cpp @ 2177:3582bf76420e

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6990754: Use native memory and reference counting to implement SymbolTable Summary: move symbols from permgen into C heap and reference count them Reviewed-by: never, acorn, jmasa, stefank
author coleenp
date Thu, 27 Jan 2011 16:11:27 -0800
parents 70427f06ea47
children c5a923563727
comparison
equal deleted inserted replaced
2176:27e4ea99855d 2177:3582bf76420e
118 if (!m->is_static()) { 118 if (!m->is_static()) {
119 cur_slot -= type2size[T_OBJECT]; 119 cur_slot -= type2size[T_OBJECT];
120 if (cur_slot == arg_slot) 120 if (cur_slot == arg_slot)
121 return T_OBJECT; 121 return T_OBJECT;
122 } 122 }
123 ResourceMark rm(THREAD);
123 for (SignatureStream ss(m->signature()); !ss.is_done(); ss.next()) { 124 for (SignatureStream ss(m->signature()); !ss.is_done(); ss.next()) {
124 BasicType bt = ss.type(); 125 BasicType bt = ss.type();
125 cur_slot -= type2size[bt]; 126 cur_slot -= type2size[bt];
126 if (cur_slot <= arg_slot) { 127 if (cur_slot <= arg_slot) {
127 if (cur_slot == arg_slot) 128 if (cur_slot == arg_slot)
959 if (m == NULL) { 960 if (m == NULL) {
960 // Get the intrinsic methodOop. 961 // Get the intrinsic methodOop.
961 m = vmIntrinsics::method_for(iid); 962 m = vmIntrinsics::method_for(iid);
962 } 963 }
963 964
964 klassOop klass = m->method_holder(); 965 klassOop klass = m->method_holder();
965 symbolOop name = m->name(); 966 Symbol* name = m->name();
966 symbolOop signature = m->signature(); 967 Symbol* signature = m->signature();
967 968
968 if (tailcall) { 969 if (tailcall) {
969 // Actually, in order to make these methods more recognizable, 970 // Actually, in order to make these methods more recognizable,
970 // let's put them in holder class MethodHandle. That way stack 971 // let's put them in holder class MethodHandle. That way stack
971 // walkers and compiler heuristics can recognize them. 972 // walkers and compiler heuristics can recognize them.
1139 1140
1140 // Fill the real constant pool skipping the zero element. 1141 // Fill the real constant pool skipping the zero element.
1141 for (int i = 1; i < _constants.length(); i++) { 1142 for (int i = 1; i < _constants.length(); i++) {
1142 ConstantValue* cv = _constants.at(i); 1143 ConstantValue* cv = _constants.at(i);
1143 switch (cv->tag()) { 1144 switch (cv->tag()) {
1144 case JVM_CONSTANT_Utf8: cpool->symbol_at_put( i, cv->symbol_oop() ); break; 1145 case JVM_CONSTANT_Utf8: cpool->symbol_at_put( i, cv->symbol() ); break;
1145 case JVM_CONSTANT_Integer: cpool->int_at_put( i, cv->get_jint() ); break; 1146 case JVM_CONSTANT_Integer: cpool->int_at_put( i, cv->get_jint() ); break;
1146 case JVM_CONSTANT_Float: cpool->float_at_put( i, cv->get_jfloat() ); break; 1147 case JVM_CONSTANT_Float: cpool->float_at_put( i, cv->get_jfloat() ); break;
1147 case JVM_CONSTANT_Long: cpool->long_at_put( i, cv->get_jlong() ); break; 1148 case JVM_CONSTANT_Long: cpool->long_at_put( i, cv->get_jlong() ); break;
1148 case JVM_CONSTANT_Double: cpool->double_at_put( i, cv->get_jdouble() ); break; 1149 case JVM_CONSTANT_Double: cpool->double_at_put( i, cv->get_jdouble() ); break;
1149 case JVM_CONSTANT_Class: cpool->klass_at_put( i, cv->klass_oop() ); break; 1150 case JVM_CONSTANT_Class: cpool->klass_at_put( i, cv->klass_oop() ); break;
1329 return maybe_make_temp("fetch", type, "x"); 1330 return maybe_make_temp("fetch", type, "x");
1330 } 1331 }
1331 virtual ArgToken make_invoke(methodOop m, vmIntrinsics::ID iid, 1332 virtual ArgToken make_invoke(methodOop m, vmIntrinsics::ID iid,
1332 Bytecodes::Code op, bool tailcall, 1333 Bytecodes::Code op, bool tailcall,
1333 int argc, ArgToken* argv, TRAPS) { 1334 int argc, ArgToken* argv, TRAPS) {
1334 symbolOop name, sig; 1335 Symbol* name, sig;
1335 if (m != NULL) { 1336 if (m != NULL) {
1336 name = m->name(); 1337 name = m->name();
1337 sig = m->signature(); 1338 sig = m->signature();
1338 } else { 1339 } else {
1339 name = vmSymbols::symbol_at(vmIntrinsics::name_for(iid)); 1340 name = vmSymbols::symbol_at(vmIntrinsics::name_for(iid));