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 "dex_instruction.h"
18 #include "entrypoints/entrypoint_utils-inl.h"
19 #include "mirror/art_method-inl.h"
20 #include "mirror/object-inl.h"
21
22 namespace art {
23
art_portable_fill_array_data_from_code(mirror::ArtMethod * method,uint32_t dex_pc,mirror::Array * array,uint32_t payload_offset)24 extern "C" void art_portable_fill_array_data_from_code(mirror::ArtMethod* method,
25 uint32_t dex_pc,
26 mirror::Array* array,
27 uint32_t payload_offset)
28 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
29 const DexFile::CodeItem* code_item = method->GetCodeItem();
30 const Instruction::ArrayDataPayload* payload =
31 reinterpret_cast<const Instruction::ArrayDataPayload*>(code_item->insns_ + payload_offset);
32 DCHECK_EQ(payload->ident, static_cast<uint16_t>(Instruction::kArrayDataSignature));
33 if (UNLIKELY(array == NULL)) {
34 ThrowNullPointerException(NULL, "null array in FILL_ARRAY_DATA");
35 return; // Error
36 }
37 DCHECK(array->IsArrayInstance() && !array->IsObjectArray());
38 if (UNLIKELY(static_cast<int32_t>(payload->element_count) > array->GetLength())) {
39 Thread* self = Thread::Current();
40 ThrowLocation throw_location = self->GetCurrentLocationForThrow();
41 self->ThrowNewExceptionF(throw_location, "Ljava/lang/ArrayIndexOutOfBoundsException;",
42 "failed FILL_ARRAY_DATA; length=%d, index=%d",
43 array->GetLength(), payload->element_count - 1);
44 return; // Error
45 }
46 uint32_t size_in_bytes = payload->element_count * payload->element_width;
47 memcpy(array->GetRawData(payload->element_width, 0), payload->data, size_in_bytes);
48 }
49
50 } // namespace art
51