1 /*
2 * Copyright (c) 2003, 2023, 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 "precompiled.hpp"
27 #include "asm/assembler.inline.hpp"
28 #include "code/debugInfoRec.hpp"
29 #include "code/vtableStubs.hpp"
30 #include "interpreter/interpreter.hpp"
31 #include "runtime/interfaceSupport.inline.hpp"
32 #include "runtime/sharedRuntime.hpp"
33 #include "runtime/vframeArray.hpp"
34 #include "vmreg_zero.inline.hpp"
35 #ifdef COMPILER1
36 #include "c1/c1_Runtime1.hpp"
37 #endif
38 #ifdef COMPILER2
39 #include "opto/runtime.hpp"
40 #endif
41
42
43 static address zero_null_code_stub() {
44 address start = ShouldNotCallThisStub();
45 return start;
46 }
47
48 int SharedRuntime::java_calling_convention(const BasicType *sig_bt,
49 VMRegPair *regs,
50 int total_args_passed) {
51 return 0;
52 }
53
54 AdapterHandlerEntry* SharedRuntime::generate_i2c2i_adapters(
55 MacroAssembler *masm,
56 int total_args_passed,
57 int comp_args_on_stack,
58 const BasicType *sig_bt,
59 const VMRegPair *regs,
60 AdapterFingerPrint *fingerprint) {
61 return AdapterHandlerLibrary::new_entry(
62 fingerprint,
63 CAST_FROM_FN_PTR(address,zero_null_code_stub),
64 CAST_FROM_FN_PTR(address,zero_null_code_stub),
65 CAST_FROM_FN_PTR(address,zero_null_code_stub));
66 }
67
68 nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler *masm,
69 const methodHandle& method,
70 int compile_id,
71 BasicType *sig_bt,
72 VMRegPair *regs,
73 BasicType ret_type) {
74 ShouldNotCallThis();
75 return nullptr;
76 }
77
78 int Deoptimization::last_frame_adjust(int callee_parameters,
79 int callee_locals) {
80 return 0;
81 }
82
83 uint SharedRuntime::out_preserve_stack_slots() {
84 ShouldNotCallThis();
85 return 0;
86 }
87
88 JRT_LEAF(void, zero_stub())
89 ShouldNotCallThis();
90 JRT_END
91
92 static RuntimeStub* generate_empty_runtime_stub(const char* name) {
93 return CAST_FROM_FN_PTR(RuntimeStub*,zero_stub);
94 }
95
96 static SafepointBlob* generate_empty_safepoint_blob() {
97 return CAST_FROM_FN_PTR(SafepointBlob*,zero_stub);
98 }
99
100 static DeoptimizationBlob* generate_empty_deopt_blob() {
101 return CAST_FROM_FN_PTR(DeoptimizationBlob*,zero_stub);
102 }
103
104
105 void SharedRuntime::generate_deopt_blob() {
106 _deopt_blob = generate_empty_deopt_blob();
107 }
108
109 SafepointBlob* SharedRuntime::generate_handler_blob(address call_ptr, int poll_type) {
110 return generate_empty_safepoint_blob();
111 }
112
113 RuntimeStub* SharedRuntime::generate_resolve_blob(address destination, const char* name) {
114 return generate_empty_runtime_stub("resolve_blob");
115 }
116
117 int SharedRuntime::c_calling_convention(const BasicType *sig_bt,
118 VMRegPair *regs,
119 int total_args_passed) {
120 ShouldNotCallThis();
121 return 0;
122 }
123
124 int SharedRuntime::vector_calling_convention(VMRegPair *regs,
125 uint num_bits,
126 uint total_args_passed) {
127 ShouldNotCallThis();
128 return 0;
129 }