93 void CompiledDirectStaticCall::set_to_interpreted(const methodHandle& callee, address entry) {
94 address stub = find_stub(/*is_aot*/ false);
95 guarantee(stub != NULL, "stub not found");
96
97 if (TraceICs) {
98 ResourceMark rm;
99 tty->print_cr("CompiledDirectStaticCall@" INTPTR_FORMAT ": set_to_interpreted %s",
100 p2i(instruction_address()),
101 callee->name_and_sig_as_C_string());
102 }
103
104 // Creation also verifies the object.
105 NativeMovConstReg* method_holder = nativeMovConstReg_at(stub + NativeCall::get_IC_pos_in_java_to_interp_stub());
106 NativeJump* jump = nativeJump_at(method_holder->next_instruction_address());
107
108 #ifdef ASSERT
109 // A generated lambda form might be deleted from the Lambdaform
110 // cache in MethodTypeForm. If a jit compiled lambdaform method
111 // becomes not entrant and the cache access returns null, the new
112 // resolve will lead to a new generated LambdaForm.
113 volatile intptr_t data = method_holder->data();
114 volatile address destination = jump->jump_destination();
115 assert(data == 0 || data == (intptr_t)callee() || callee->is_compiled_lambda_form(),
116 "a) MT-unsafe modification of inline cache");
117 assert(destination == (address)-1 || destination == entry,
118 "b) MT-unsafe modification of inline cache");
119 #endif
120
121 // Update stub.
122 method_holder->set_data((intptr_t)callee(), relocInfo::metadata_type);
123 jump->set_jump_destination(entry);
124
125 // Update jump to call.
126 set_destination_mt_safe(stub);
127 }
128
129 void CompiledDirectStaticCall::set_stub_to_clean(static_stub_Relocation* static_stub) {
130 // Reset stub.
131 address stub = static_stub->addr();
132 assert(stub != NULL, "stub not found");
133 assert(CompiledICLocker::is_safe(stub), "mt unsafe call");
134 // Creation also verifies the object.
135 NativeMovConstReg* method_holder = nativeMovConstReg_at(stub + NativeCall::get_IC_pos_in_java_to_interp_stub());
136 NativeJump* jump = nativeJump_at(method_holder->next_instruction_address());
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93 void CompiledDirectStaticCall::set_to_interpreted(const methodHandle& callee, address entry) {
94 address stub = find_stub(/*is_aot*/ false);
95 guarantee(stub != NULL, "stub not found");
96
97 if (TraceICs) {
98 ResourceMark rm;
99 tty->print_cr("CompiledDirectStaticCall@" INTPTR_FORMAT ": set_to_interpreted %s",
100 p2i(instruction_address()),
101 callee->name_and_sig_as_C_string());
102 }
103
104 // Creation also verifies the object.
105 NativeMovConstReg* method_holder = nativeMovConstReg_at(stub + NativeCall::get_IC_pos_in_java_to_interp_stub());
106 NativeJump* jump = nativeJump_at(method_holder->next_instruction_address());
107
108 #ifdef ASSERT
109 // A generated lambda form might be deleted from the Lambdaform
110 // cache in MethodTypeForm. If a jit compiled lambdaform method
111 // becomes not entrant and the cache access returns null, the new
112 // resolve will lead to a new generated LambdaForm.
113 Method* volatile old_method = reinterpret_cast<Method*>(method_holder->data());
114 assert(old_method == NULL || old_method == callee() ||
115 callee->is_compiled_lambda_form() ||
116 !old_method->method_holder()->is_loader_alive() ||
117 old_method->is_old(), // may be race patching deoptimized nmethod due to redefinition.
118 "a) MT-unsafe modification of inline cache");
119
120 volatile address destination = jump->jump_destination();
121 assert(destination == (address)-1 || destination == entry,
122 "b) MT-unsafe modification of inline cache");
123 #endif
124
125 // Update stub.
126 method_holder->set_data((intptr_t)callee(), relocInfo::metadata_type);
127 jump->set_jump_destination(entry);
128
129 // Update jump to call.
130 set_destination_mt_safe(stub);
131 }
132
133 void CompiledDirectStaticCall::set_stub_to_clean(static_stub_Relocation* static_stub) {
134 // Reset stub.
135 address stub = static_stub->addr();
136 assert(stub != NULL, "stub not found");
137 assert(CompiledICLocker::is_safe(stub), "mt unsafe call");
138 // Creation also verifies the object.
139 NativeMovConstReg* method_holder = nativeMovConstReg_at(stub + NativeCall::get_IC_pos_in_java_to_interp_stub());
140 NativeJump* jump = nativeJump_at(method_holder->next_instruction_address());
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