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 void 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 AdapterHandlerEntry* handler,
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 handler->set_entry_points(CAST_FROM_FN_PTR(address,zero_null_code_stub),
80 CAST_FROM_FN_PTR(address,zero_null_code_stub),
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 nullptr);
86 return;
87 }
88
89 nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler *masm,
90 const methodHandle& method,
91 int compile_id,
92 BasicType *sig_bt,
93 VMRegPair *regs,
94 BasicType ret_type) {
95 ShouldNotCallThis();
96 return nullptr;
97 }
98
99 int Deoptimization::last_frame_adjust(int callee_parameters,
100 int callee_locals) {
101 return 0;
102 }
103
104 uint SharedRuntime::out_preserve_stack_slots() {
105 ShouldNotCallThis();
106 return 0;
107 }
108
109 VMReg SharedRuntime::thread_register() {
110 Unimplemented();
111 return nullptr;
112 }
113
114 JRT_LEAF(void, zero_stub())
115 ShouldNotCallThis();
116 JRT_END
117
118 static RuntimeStub* generate_empty_runtime_stub() {
119 return CAST_FROM_FN_PTR(RuntimeStub*,zero_stub);
120 }
121
122 static SafepointBlob* generate_empty_safepoint_blob() {
123 return CAST_FROM_FN_PTR(SafepointBlob*,zero_stub);
124 }
125
126 static DeoptimizationBlob* generate_empty_deopt_blob() {
127 return CAST_FROM_FN_PTR(DeoptimizationBlob*,zero_stub);
128 }
129
130 void SharedRuntime::generate_deopt_blob() {
131 _deopt_blob = generate_empty_deopt_blob();
132 }
133
134 SafepointBlob* SharedRuntime::generate_handler_blob(SharedStubId id, address call_ptr) {
135 return generate_empty_safepoint_blob();
136 }
137
138 RuntimeStub* SharedRuntime::generate_resolve_blob(SharedStubId id, address destination) {
139 return generate_empty_runtime_stub();
140 }
141
142 RuntimeStub* SharedRuntime::generate_throw_exception(SharedStubId id, address runtime_entry) {
143 return generate_empty_runtime_stub();
144 }
145
146 int SharedRuntime::c_calling_convention(const BasicType *sig_bt,
147 VMRegPair *regs,
148 int total_args_passed) {
149 ShouldNotCallThis();
150 return 0;
151 }
152
153 int SharedRuntime::vector_calling_convention(VMRegPair *regs,
154 uint num_bits,
155 uint total_args_passed) {
156 ShouldNotCallThis();
157 return 0;
158 }
159
160 #if INCLUDE_JFR
161 RuntimeStub* SharedRuntime::generate_jfr_write_checkpoint() {
162 return nullptr;
163 }
164
165 RuntimeStub* SharedRuntime::generate_jfr_return_lease() {
166 return nullptr;
167 }
168
169 #endif // INCLUDE_JFR
170