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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "callee_save_frame.h"
#include "common_throws.h"
#include "dex_instruction.h"
#include "mirror/array.h"
#include "mirror/object-inl.h"
namespace art {
/*
* Fill the array with predefined constant values, throwing exceptions if the array is null or
* not of sufficient length.
*
* NOTE: When dealing with a raw dex file, the data to be copied uses
* little-endian ordering. Require that oat2dex do any required swapping
* so this routine can get by with a memcpy().
*
* Format of the data:
* ushort ident = 0x0300 magic value
* ushort width width of each element in the table
* uint size number of elements in the table
* ubyte data[size*width] table of data values (may contain a single-byte
* padding at the end)
*/
extern "C" int artHandleFillArrayDataFromCode(mirror::Array* array,
const Instruction::ArrayDataPayload* payload,
Thread* self, mirror::ArtMethod** sp)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly);
DCHECK_EQ(payload->ident, static_cast<uint16_t>(Instruction::kArrayDataSignature));
if (UNLIKELY(array == NULL)) {
ThrowNullPointerException(NULL, "null array in FILL_ARRAY_DATA");
return -1; // Error
}
DCHECK(array->IsArrayInstance() && !array->IsObjectArray());
if (UNLIKELY(static_cast<int32_t>(payload->element_count) > array->GetLength())) {
ThrowLocation throw_location = self->GetCurrentLocationForThrow();
self->ThrowNewExceptionF(throw_location, "Ljava/lang/ArrayIndexOutOfBoundsException;",
"failed FILL_ARRAY_DATA; length=%d, index=%d",
array->GetLength(), payload->element_count - 1);
return -1; // Error
}
uint32_t size_in_bytes = payload->element_count * payload->element_width;
memcpy(array->GetRawData(payload->element_width, 0), payload->data, size_in_bytes);
return 0; // Success
}
} // namespace art
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