1 /* 2 * Copyright (c) 2003, 2025, Oracle and/or its affiliates. All rights reserved. 3 * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26 #include "asm/assembler.inline.hpp" 27 #include "code/debugInfoRec.hpp" 28 #include "code/vtableStubs.hpp" 29 #include "interpreter/interpreter.hpp" 30 #include "runtime/interfaceSupport.inline.hpp" 31 #include "runtime/sharedRuntime.hpp" 32 #include "runtime/vframeArray.hpp" 33 #include "vmreg_zero.inline.hpp" 34 #ifdef COMPILER1 35 #include "c1/c1_Runtime1.hpp" 36 #endif 37 #ifdef COMPILER2 38 #include "opto/runtime.hpp" 39 #endif 40 41 42 static address zero_null_code_stub() { 43 address start = ShouldNotCallThisStub(); 44 return start; 45 } 46 47 int SharedRuntime::java_calling_convention(const BasicType *sig_bt, 48 VMRegPair *regs, 49 int total_args_passed) { 50 return 0; 51 } 52 53 int SharedRuntime::java_return_convention(const BasicType *sig_bt, 54 VMRegPair *regs, 55 int total_args_passed) { 56 Unimplemented(); 57 return 0; 58 } 59 60 BufferedInlineTypeBlob* SharedRuntime::generate_buffered_inline_type_adapter(const InlineKlass* vk) { 61 Unimplemented(); 62 return nullptr; 63 } 64 65 AdapterHandlerEntry* SharedRuntime::generate_i2c2i_adapters(MacroAssembler* masm, 66 int comp_args_on_stack, 67 const GrowableArray <SigEntry>* sig, 68 const VMRegPair* regs, 69 const GrowableArray <SigEntry>* sig_cc, 70 const VMRegPair* regs_cc, 71 const GrowableArray <SigEntry>* sig_cc_ro, 72 const VMRegPair* regs_cc_ro, 73 AdapterFingerPrint* fingerprint, 74 AdapterBlob*& new_adapter, 75 bool allocate_code_blob) { 76 if (allocate_code_blob) { 77 new_adapter = AdapterBlob::create(masm->code(), 0, 0, nullptr); 78 } 79 return AdapterHandlerLibrary::new_entry( 80 fingerprint, 81 CAST_FROM_FN_PTR(address,zero_null_code_stub), 82 CAST_FROM_FN_PTR(address,zero_null_code_stub), 83 CAST_FROM_FN_PTR(address,zero_null_code_stub), 84 CAST_FROM_FN_PTR(address,zero_null_code_stub), 85 CAST_FROM_FN_PTR(address,zero_null_code_stub), 86 CAST_FROM_FN_PTR(address,zero_null_code_stub), 87 CAST_FROM_FN_PTR(address,zero_null_code_stub)); 88 } 89 90 nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler *masm, 91 const methodHandle& method, 92 int compile_id, 93 BasicType *sig_bt, 94 VMRegPair *regs, 95 BasicType ret_type) { 96 ShouldNotCallThis(); 97 return nullptr; 98 } 99 100 int Deoptimization::last_frame_adjust(int callee_parameters, 101 int callee_locals) { 102 return 0; 103 } 104 105 uint SharedRuntime::out_preserve_stack_slots() { 106 ShouldNotCallThis(); 107 return 0; 108 } 109 110 VMReg SharedRuntime::thread_register() { 111 Unimplemented(); 112 return nullptr; 113 } 114 115 JRT_LEAF(void, zero_stub()) 116 ShouldNotCallThis(); 117 JRT_END 118 119 static RuntimeStub* generate_empty_runtime_stub() { 120 return CAST_FROM_FN_PTR(RuntimeStub*,zero_stub); 121 } 122 123 static SafepointBlob* generate_empty_safepoint_blob() { 124 return CAST_FROM_FN_PTR(SafepointBlob*,zero_stub); 125 } 126 127 static DeoptimizationBlob* generate_empty_deopt_blob() { 128 return CAST_FROM_FN_PTR(DeoptimizationBlob*,zero_stub); 129 } 130 131 void SharedRuntime::generate_deopt_blob() { 132 _deopt_blob = generate_empty_deopt_blob(); 133 } 134 135 SafepointBlob* SharedRuntime::generate_handler_blob(SharedStubId id, address call_ptr) { 136 return generate_empty_safepoint_blob(); 137 } 138 139 RuntimeStub* SharedRuntime::generate_resolve_blob(SharedStubId id, address destination) { 140 return generate_empty_runtime_stub(); 141 } 142 143 RuntimeStub* SharedRuntime::generate_throw_exception(SharedStubId id, address runtime_entry) { 144 return generate_empty_runtime_stub(); 145 } 146 147 int SharedRuntime::c_calling_convention(const BasicType *sig_bt, 148 VMRegPair *regs, 149 int total_args_passed) { 150 ShouldNotCallThis(); 151 return 0; 152 } 153 154 int SharedRuntime::vector_calling_convention(VMRegPair *regs, 155 uint num_bits, 156 uint total_args_passed) { 157 ShouldNotCallThis(); 158 return 0; 159 } 160 161 #if INCLUDE_JFR 162 RuntimeStub* SharedRuntime::generate_jfr_write_checkpoint() { 163 return nullptr; 164 } 165 166 RuntimeStub* SharedRuntime::generate_jfr_return_lease() { 167 return nullptr; 168 } 169 170 #endif // INCLUDE_JFR 171