1 /*
2 * Copyright (C) 2011 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 #include "dex_cache.h"
18
19 #include "art_method-inl.h"
20 #include "base/logging.h"
21 #include "class_linker.h"
22 #include "gc/accounting/card_table-inl.h"
23 #include "gc/heap.h"
24 #include "globals.h"
25 #include "object.h"
26 #include "object-inl.h"
27 #include "object_array-inl.h"
28 #include "runtime.h"
29 #include "string.h"
30
31 namespace art {
32 namespace mirror {
33
Init(const DexFile * dex_file,String * location,ObjectArray<String> * strings,ObjectArray<Class> * resolved_types,PointerArray * resolved_methods,PointerArray * resolved_fields,size_t pointer_size)34 void DexCache::Init(const DexFile* dex_file, String* location, ObjectArray<String>* strings,
35 ObjectArray<Class>* resolved_types, PointerArray* resolved_methods,
36 PointerArray* resolved_fields, size_t pointer_size) {
37 CHECK(dex_file != nullptr);
38 CHECK(location != nullptr);
39 CHECK(strings != nullptr);
40 CHECK(resolved_types != nullptr);
41 CHECK(resolved_methods != nullptr);
42 CHECK(resolved_fields != nullptr);
43
44 SetDexFile(dex_file);
45 SetFieldObject<false>(OFFSET_OF_OBJECT_MEMBER(DexCache, location_), location);
46 SetFieldObject<false>(StringsOffset(), strings);
47 SetFieldObject<false>(ResolvedFieldsOffset(), resolved_fields);
48 SetFieldObject<false>(OFFSET_OF_OBJECT_MEMBER(DexCache, resolved_types_), resolved_types);
49 SetFieldObject<false>(ResolvedMethodsOffset(), resolved_methods);
50
51 Runtime* const runtime = Runtime::Current();
52 if (runtime->HasResolutionMethod()) {
53 // Initialize the resolve methods array to contain trampolines for resolution.
54 Fixup(runtime->GetResolutionMethod(), pointer_size);
55 }
56 }
57
Fixup(ArtMethod * trampoline,size_t pointer_size)58 void DexCache::Fixup(ArtMethod* trampoline, size_t pointer_size) {
59 // Fixup the resolve methods array to contain trampoline for resolution.
60 CHECK(trampoline != nullptr);
61 CHECK(trampoline->IsRuntimeMethod());
62 auto* resolved_methods = GetResolvedMethods();
63 for (size_t i = 0, length = resolved_methods->GetLength(); i < length; i++) {
64 if (resolved_methods->GetElementPtrSize<ArtMethod*>(i, pointer_size) == nullptr) {
65 resolved_methods->SetElementPtrSize(i, trampoline, pointer_size);
66 }
67 }
68 }
69
70 } // namespace mirror
71 } // namespace art
72