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 void SharedRuntime::generate_i2c2i_adapters(MacroAssembler *masm,
54 int total_args_passed,
55 int comp_args_on_stack,
56 const BasicType *sig_bt,
57 const VMRegPair *regs,
58 AdapterHandlerEntry* handler) {
59 handler->set_entry_points(CAST_FROM_FN_PTR(address,zero_null_code_stub),
60 CAST_FROM_FN_PTR(address,zero_null_code_stub),
61 CAST_FROM_FN_PTR(address,zero_null_code_stub),
62 nullptr);
63 return;
64 }
65
66 nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler *masm,
67 const methodHandle& method,
68 int compile_id,
69 BasicType *sig_bt,
70 VMRegPair *regs,
71 BasicType ret_type) {
72 ShouldNotCallThis();
73 return nullptr;
74 }
75
76 int Deoptimization::last_frame_adjust(int callee_parameters,
77 int callee_locals) {
78 return 0;
79 }
80
81 uint SharedRuntime::out_preserve_stack_slots() {
82 ShouldNotCallThis();
83 return 0;
84 }
85
86 VMReg SharedRuntime::thread_register() {
87 Unimplemented();
88 return nullptr;
89 }
90
91 JRT_LEAF(void, zero_stub())
92 ShouldNotCallThis();
93 JRT_END
94
95 static RuntimeStub* generate_empty_runtime_stub() {
96 return CAST_FROM_FN_PTR(RuntimeStub*,zero_stub);
97 }
98
99 static SafepointBlob* generate_empty_safepoint_blob() {
100 return CAST_FROM_FN_PTR(SafepointBlob*,zero_stub);
101 }
102
103 static DeoptimizationBlob* generate_empty_deopt_blob() {
104 return CAST_FROM_FN_PTR(DeoptimizationBlob*,zero_stub);
105 }
106
107 void SharedRuntime::generate_deopt_blob() {
108 _deopt_blob = generate_empty_deopt_blob();
109 }
110
111 SafepointBlob* SharedRuntime::generate_handler_blob(SharedStubId id, address call_ptr) {
112 return generate_empty_safepoint_blob();
113 }
114
115 RuntimeStub* SharedRuntime::generate_resolve_blob(SharedStubId id, address destination) {
116 return generate_empty_runtime_stub();
117 }
118
119 RuntimeStub* SharedRuntime::generate_throw_exception(SharedStubId id, address runtime_entry) {
120 return generate_empty_runtime_stub();
121 }
122
123 int SharedRuntime::c_calling_convention(const BasicType *sig_bt,
124 VMRegPair *regs,
125 int total_args_passed) {
126 ShouldNotCallThis();
127 return 0;
128 }
129
130 int SharedRuntime::vector_calling_convention(VMRegPair *regs,
131 uint num_bits,
132 uint total_args_passed) {
133 ShouldNotCallThis();
134 return 0;
135 }
136
137 #if INCLUDE_JFR
138 RuntimeStub* SharedRuntime::generate_jfr_write_checkpoint() {
139 return nullptr;
140 }
141
142 RuntimeStub* SharedRuntime::generate_jfr_return_lease() {
143 return nullptr;
144 }
145
146 #endif // INCLUDE_JFR
147