| /* |
| * 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 "object.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(Array* array, const uint16_t* table, |
| Thread* self, Method** sp) { |
| FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly); |
| DCHECK_EQ(table[0], 0x0300); |
| if (UNLIKELY(array == NULL)) { |
| Thread::Current()->ThrowNewExceptionF("Ljava/lang/NullPointerException;", |
| "null array in fill array"); |
| return -1; // Error |
| } |
| DCHECK(array->IsArrayInstance() && !array->IsObjectArray()); |
| uint32_t size = (uint32_t)table[2] | (((uint32_t)table[3]) << 16); |
| if (UNLIKELY(static_cast<int32_t>(size) > array->GetLength())) { |
| Thread::Current()->ThrowNewExceptionF("Ljava/lang/ArrayIndexOutOfBoundsException;", |
| "failed array fill. length=%d; index=%d", array->GetLength(), size); |
| return -1; // Error |
| } |
| uint16_t width = table[1]; |
| uint32_t size_in_bytes = size * width; |
| memcpy((char*)array + Array::DataOffset(width).Int32Value(), (char*)&table[4], size_in_bytes); |
| return 0; // Success |
| } |
| |
| } // namespace art |
