1 /*
2 * Copyright (c) 2022-2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "ecmascript/method.h"
17
18 #include "ecmascript/jspandafile/program_object.h"
19
20 namespace panda::ecmascript {
ParseFunctionName() const21 std::string Method::ParseFunctionName() const
22 {
23 const JSPandaFile *jsPandaFile = GetJSPandaFile();
24 return MethodLiteral::ParseFunctionName(jsPandaFile, GetMethodId());
25 }
26
ParseFunctionNameView() const27 std::pair<std::string_view, bool> Method::ParseFunctionNameView() const
28 {
29 const JSPandaFile *jsPandaFile = GetJSPandaFile();
30 return MethodLiteral::ParseFunctionNameView(jsPandaFile, GetMethodId());
31 }
32
GetMethodName() const33 const char *Method::GetMethodName() const
34 {
35 const JSPandaFile *jsPandaFile = GetJSPandaFile();
36 return MethodLiteral::GetMethodName(jsPandaFile, GetMethodId());
37 }
38
GetMethodName(const JSPandaFile * file) const39 const char *Method::GetMethodName(const JSPandaFile *file) const
40 {
41 return MethodLiteral::GetMethodName(file, GetMethodId());
42 }
43
GetRecordNameStr() const44 const CString Method::GetRecordNameStr() const
45 {
46 const JSPandaFile *jsPandaFile = GetJSPandaFile();
47 return MethodLiteral::GetRecordName(jsPandaFile, GetMethodId());
48 }
49
GetCodeSize() const50 uint32_t Method::GetCodeSize() const
51 {
52 const JSPandaFile *jsPandaFile = GetJSPandaFile();
53 return MethodLiteral::GetCodeSize(jsPandaFile, GetMethodId());
54 }
55
GetJSPandaFile() const56 const JSPandaFile *Method::GetJSPandaFile() const
57 {
58 JSTaggedValue constpool = GetConstantPool();
59 if (constpool.IsUndefined()) {
60 return nullptr;
61 }
62
63 const ConstantPool *taggedPool = ConstantPool::Cast(constpool.GetTaggedObject());
64 return taggedPool->GetJSPandaFile();
65 }
66
GetMethodLiteral() const67 MethodLiteral *Method::GetMethodLiteral() const
68 {
69 if (IsAotWithCallField() || IsDeoptimized()) {
70 ASSERT(!IsNativeWithCallField());
71 const JSPandaFile *jsPandaFile = GetJSPandaFile();
72 ASSERT(jsPandaFile != nullptr);
73 return jsPandaFile->FindMethodLiteral(GetMethodId().GetOffset());
74 }
75 return reinterpret_cast<MethodLiteral *>(GetCodeEntryOrLiteral());
76 }
77
IsDeoptimized() const78 bool Method::IsDeoptimized() const
79 {
80 return GetDeoptType() != kungfu::DeoptType::NONE;
81 }
82
FindCatchBlock(uint32_t pc) const83 uint32_t Method::FindCatchBlock(uint32_t pc) const
84 {
85 ASSERT(!IsNativeWithCallField());
86 ASSERT(GetJSPandaFile() != nullptr);
87 auto *pandaFile = GetJSPandaFile()->GetPandaFile();
88 ASSERT(pandaFile != nullptr);
89 panda_file::MethodDataAccessor mda(*pandaFile, GetMethodId());
90 panda_file::CodeDataAccessor cda(*pandaFile, mda.GetCodeId().value());
91
92 uint32_t pcOffset = INVALID_INDEX;
93 cda.EnumerateTryBlocks([&pcOffset, pc](panda_file::CodeDataAccessor::TryBlock &tryBlock) {
94 if ((tryBlock.GetStartPc() <= pc) && ((tryBlock.GetStartPc() + tryBlock.GetLength()) > pc)) {
95 tryBlock.EnumerateCatchBlocks([&](panda_file::CodeDataAccessor::CatchBlock &catchBlock) {
96 pcOffset = catchBlock.GetHandlerPc();
97 return false;
98 });
99 }
100 return pcOffset == INVALID_INDEX;
101 });
102 return pcOffset;
103 }
104
HasCatchBlock() const105 bool Method::HasCatchBlock() const
106 {
107 ASSERT(GetJSPandaFile() != nullptr);
108 auto *pandaFile = GetJSPandaFile()->GetPandaFile();
109 ASSERT(pandaFile != nullptr);
110 panda_file::MethodDataAccessor mda(*pandaFile, GetMethodId());
111 panda_file::CodeDataAccessor cda(*pandaFile, mda.GetCodeId().value());
112 return cda.GetTriesSize() != 0;
113 }
114
Create(JSThread * thread,const JSPandaFile * jsPandaFile,MethodLiteral * methodLiteral)115 JSHandle<Method> Method::Create(JSThread *thread, const JSPandaFile *jsPandaFile, MethodLiteral *methodLiteral)
116 {
117 EcmaVM *vm = thread->GetEcmaVM();
118 EntityId methodId = methodLiteral->GetMethodId();
119 JSTaggedValue patchVal = vm->GetQuickFixManager()->CheckAndGetPatch(thread, jsPandaFile, methodId);
120 if (!patchVal.IsHole()) {
121 return JSHandle<Method>(thread, patchVal);
122 }
123
124 JSHandle<Method> method;
125 method = vm->GetFactory()->NewSMethod(methodLiteral);
126 JSHandle<ConstantPool> newConstpool = thread->GetCurrentEcmaContext()->FindOrCreateConstPool(jsPandaFile, methodId);
127 method->SetConstantPool(thread, newConstpool);
128 return method;
129 }
130
SetCodeEntryAndMarkAOTWhenBinding(uintptr_t codeEntry)131 void Method::SetCodeEntryAndMarkAOTWhenBinding(uintptr_t codeEntry)
132 {
133 SetAotCodeBit(true);
134 SetNativeBit(false);
135 SetCodeEntryOrLiteral(codeEntry);
136 }
137
ClearAOTStatusWhenDeopt(uintptr_t entry)138 void Method::ClearAOTStatusWhenDeopt(uintptr_t entry)
139 {
140 ClearAOTFlagsWhenInit();
141 // Do not clear deopt type, which records a method has deoptimized before
142 SetCodeEntryOrLiteral(entry);
143 }
144
ClearAOTFlagsWhenInit()145 void Method::ClearAOTFlagsWhenInit()
146 {
147 SetAotCodeBit(false);
148 SetIsFastCall(false);
149 }
150
InitInterpreterStatusForCompiledMethod(const JSThread * thread)151 void Method::InitInterpreterStatusForCompiledMethod(const JSThread *thread)
152 {
153 if (!IsAotWithCallField()) {
154 return;
155 }
156 bool isFastCall = IsFastCall();
157 uintptr_t entry =
158 isFastCall ? thread->GetRTInterface(kungfu::RuntimeStubCSigns::ID_FastCallToAsmInterBridge)
159 : thread->GetRTInterface(kungfu::RuntimeStubCSigns::ID_AOTCallToAsmInterBridge);
160 SetCodeEntryOrLiteral(entry);
161 ClearAOTFlagsWhenInit();
162 SetDeoptType(kungfu::DeoptType::INIT_AOT_FAILED);
163 }
164 } // namespace panda::ecmascript
165