1 /*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #ifndef ART_COMPILER_DRIVER_COMPILER_DRIVER_INL_H_
18 #define ART_COMPILER_DRIVER_COMPILER_DRIVER_INL_H_
19
20 #include "compiler_driver.h"
21
22 #include "art_field-inl.h"
23 #include "art_method-inl.h"
24 #include "base/enums.h"
25 #include "class_linker-inl.h"
26 #include "dex_compilation_unit.h"
27 #include "handle_scope-inl.h"
28 #include "mirror/class_loader.h"
29 #include "mirror/dex_cache-inl.h"
30 #include "runtime.h"
31 #include "scoped_thread_state_change-inl.h"
32
33 namespace art {
34
ResolveClass(const ScopedObjectAccess & soa,Handle<mirror::DexCache> dex_cache,Handle<mirror::ClassLoader> class_loader,dex::TypeIndex cls_index,const DexCompilationUnit * mUnit)35 inline mirror::Class* CompilerDriver::ResolveClass(
36 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache,
37 Handle<mirror::ClassLoader> class_loader, dex::TypeIndex cls_index,
38 const DexCompilationUnit* mUnit) {
39 DCHECK_EQ(dex_cache->GetDexFile(), mUnit->GetDexFile());
40 DCHECK_EQ(class_loader.Get(), mUnit->GetClassLoader().Get());
41 mirror::Class* cls = mUnit->GetClassLinker()->ResolveType(
42 *mUnit->GetDexFile(), cls_index, dex_cache, class_loader);
43 DCHECK_EQ(cls == nullptr, soa.Self()->IsExceptionPending());
44 if (UNLIKELY(cls == nullptr)) {
45 // Clean up any exception left by type resolution.
46 soa.Self()->ClearException();
47 }
48 return cls;
49 }
50
ResolveCompilingMethodsClass(const ScopedObjectAccess & soa,Handle<mirror::DexCache> dex_cache,Handle<mirror::ClassLoader> class_loader,const DexCompilationUnit * mUnit)51 inline mirror::Class* CompilerDriver::ResolveCompilingMethodsClass(
52 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache,
53 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit) {
54 DCHECK_EQ(dex_cache->GetDexFile(), mUnit->GetDexFile());
55 DCHECK_EQ(class_loader.Get(), mUnit->GetClassLoader().Get());
56 const DexFile::MethodId& referrer_method_id =
57 mUnit->GetDexFile()->GetMethodId(mUnit->GetDexMethodIndex());
58 return ResolveClass(soa, dex_cache, class_loader, referrer_method_id.class_idx_, mUnit);
59 }
60
ResolveFieldWithDexFile(const ScopedObjectAccess & soa,Handle<mirror::DexCache> dex_cache,Handle<mirror::ClassLoader> class_loader,const DexFile * dex_file,uint32_t field_idx,bool is_static)61 inline ArtField* CompilerDriver::ResolveFieldWithDexFile(
62 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache,
63 Handle<mirror::ClassLoader> class_loader, const DexFile* dex_file,
64 uint32_t field_idx, bool is_static) {
65 DCHECK_EQ(dex_cache->GetDexFile(), dex_file);
66 ArtField* resolved_field = Runtime::Current()->GetClassLinker()->ResolveField(
67 *dex_file, field_idx, dex_cache, class_loader, is_static);
68 DCHECK_EQ(resolved_field == nullptr, soa.Self()->IsExceptionPending());
69 if (UNLIKELY(resolved_field == nullptr)) {
70 // Clean up any exception left by type resolution.
71 soa.Self()->ClearException();
72 return nullptr;
73 }
74 if (UNLIKELY(resolved_field->IsStatic() != is_static)) {
75 // ClassLinker can return a field of the wrong kind directly from the DexCache.
76 // Silently return null on such incompatible class change.
77 return nullptr;
78 }
79 return resolved_field;
80 }
81
ResolveField(const ScopedObjectAccess & soa,Handle<mirror::DexCache> dex_cache,Handle<mirror::ClassLoader> class_loader,const DexCompilationUnit * mUnit,uint32_t field_idx,bool is_static)82 inline ArtField* CompilerDriver::ResolveField(
83 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache,
84 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit,
85 uint32_t field_idx, bool is_static) {
86 DCHECK_EQ(class_loader.Get(), mUnit->GetClassLoader().Get());
87 return ResolveFieldWithDexFile(soa, dex_cache, class_loader, mUnit->GetDexFile(), field_idx,
88 is_static);
89 }
90
IsFastInstanceField(mirror::DexCache * dex_cache,mirror::Class * referrer_class,ArtField * resolved_field,uint16_t field_idx)91 inline std::pair<bool, bool> CompilerDriver::IsFastInstanceField(
92 mirror::DexCache* dex_cache, mirror::Class* referrer_class,
93 ArtField* resolved_field, uint16_t field_idx) {
94 DCHECK(!resolved_field->IsStatic());
95 ObjPtr<mirror::Class> fields_class = resolved_field->GetDeclaringClass();
96 bool fast_get = referrer_class != nullptr &&
97 referrer_class->CanAccessResolvedField(fields_class,
98 resolved_field,
99 dex_cache,
100 field_idx);
101 bool fast_put = fast_get && (!resolved_field->IsFinal() || fields_class == referrer_class);
102 return std::make_pair(fast_get, fast_put);
103 }
104
ResolveMethod(ScopedObjectAccess & soa,Handle<mirror::DexCache> dex_cache,Handle<mirror::ClassLoader> class_loader,const DexCompilationUnit * mUnit,uint32_t method_idx,InvokeType invoke_type)105 inline ArtMethod* CompilerDriver::ResolveMethod(
106 ScopedObjectAccess& soa,
107 Handle<mirror::DexCache> dex_cache,
108 Handle<mirror::ClassLoader> class_loader,
109 const DexCompilationUnit* mUnit,
110 uint32_t method_idx,
111 InvokeType invoke_type) {
112 DCHECK_EQ(class_loader.Get(), mUnit->GetClassLoader().Get());
113 ArtMethod* resolved_method =
114 mUnit->GetClassLinker()->ResolveMethod<ClassLinker::ResolveMode::kCheckICCEAndIAE>(
115 *dex_cache->GetDexFile(), method_idx, dex_cache, class_loader, nullptr, invoke_type);
116 if (UNLIKELY(resolved_method == nullptr)) {
117 DCHECK(soa.Self()->IsExceptionPending());
118 // Clean up any exception left by type resolution.
119 soa.Self()->ClearException();
120 }
121 return resolved_method;
122 }
123
GetVerificationResults()124 inline VerificationResults* CompilerDriver::GetVerificationResults() const {
125 DCHECK(Runtime::Current()->IsAotCompiler());
126 return verification_results_;
127 }
128
129 } // namespace art
130
131 #endif // ART_COMPILER_DRIVER_COMPILER_DRIVER_INL_H_
132