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 #include "art_method-inl.h"
18 #include "callee_save_frame.h"
19 #include "entrypoints/entrypoint_utils-inl.h"
20 #include "class_linker-inl.h"
21 #include "dex_file-inl.h"
22 #include "gc/accounting/card_table-inl.h"
23 #include "mirror/object_array-inl.h"
24 #include "mirror/object-inl.h"
25
26 namespace art {
27
artInitializeStaticStorageFromCode(uint32_t type_idx,Thread * self)28 extern "C" mirror::Class* artInitializeStaticStorageFromCode(uint32_t type_idx,
29 Thread* self)
30 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
31 // Called to ensure static storage base is initialized for direct static field reads and writes.
32 // A class may be accessing another class' fields when it doesn't have access, as access has been
33 // given by inheritance.
34 ScopedQuickEntrypointChecks sqec(self);
35 auto* caller = GetCalleeSaveMethodCaller(self, Runtime::kRefsOnly);
36 return ResolveVerifyAndClinit(type_idx, caller, self, true, false);
37 }
38
artInitializeTypeFromCode(uint32_t type_idx,Thread * self)39 extern "C" mirror::Class* artInitializeTypeFromCode(uint32_t type_idx,
40 Thread* self)
41 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
42 // Called when method->dex_cache_resolved_types_[] misses.
43 ScopedQuickEntrypointChecks sqec(self);
44 auto* caller = GetCalleeSaveMethodCaller(self, Runtime::kRefsOnly);
45 return ResolveVerifyAndClinit(type_idx, caller, self, false, false);
46 }
47
artInitializeTypeAndVerifyAccessFromCode(uint32_t type_idx,Thread * self)48 extern "C" mirror::Class* artInitializeTypeAndVerifyAccessFromCode(uint32_t type_idx,
49 Thread* self)
50 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
51 // Called when caller isn't guaranteed to have access to a type and the dex cache may be
52 // unpopulated.
53 ScopedQuickEntrypointChecks sqec(self);
54 auto* caller = GetCalleeSaveMethodCaller(self, Runtime::kRefsOnly);
55 return ResolveVerifyAndClinit(type_idx, caller, self, false, true);
56 }
57
artResolveStringFromCode(int32_t string_idx,Thread * self)58 extern "C" mirror::String* artResolveStringFromCode(int32_t string_idx,
59 Thread* self)
60 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
61 ScopedQuickEntrypointChecks sqec(self);
62 auto* caller = GetCalleeSaveMethodCaller(self, Runtime::kRefsOnly);
63 return ResolveStringFromCode(caller, string_idx);
64 }
65
66 } // namespace art
67