| /* |
| * Copyright 2011, 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 "bcinfo/BitcodeWrapper.h" |
| |
| #define LOG_TAG "bcinfo" |
| #include <cutils/log.h> |
| |
| #include "llvm/Bitcode/ReaderWriter.h" |
| |
| #include <cstdlib> |
| #include <cstring> |
| |
| namespace bcinfo { |
| |
| BitcodeWrapper::BitcodeWrapper(const char *bitcode, size_t bitcodeSize) |
| : mFileType(BC_NOT_BC), mBitcode(bitcode), |
| mBitcodeEnd(bitcode + bitcodeSize - 1), mBitcodeSize(bitcodeSize) { |
| memset(&mBCHeader, 0, sizeof(mBCHeader)); |
| } |
| |
| |
| BitcodeWrapper::~BitcodeWrapper() { |
| return; |
| } |
| |
| |
| bool BitcodeWrapper::unwrap() { |
| if (!mBitcode || !mBitcodeSize) { |
| LOGE("Invalid/empty bitcode"); |
| return false; |
| } |
| |
| if (llvm::isBitcodeWrapper((const unsigned char*) mBitcode, |
| (const unsigned char*) mBitcodeEnd)) { |
| if (mBitcodeSize < sizeof(mBCHeader)) { |
| LOGE("Invalid bitcode size"); |
| return false; |
| } |
| |
| mFileType = BC_WRAPPER; |
| memcpy(&mBCHeader, mBitcode, sizeof(mBCHeader)); |
| return true; |
| } else if (llvm::isRawBitcode((const unsigned char*) mBitcode, |
| (const unsigned char*) mBitcodeEnd)) { |
| mFileType = BC_RAW; |
| return true; |
| } else { |
| LOGE("Not bitcode"); |
| mFileType = BC_NOT_BC; |
| return false; |
| } |
| } |
| |
| } // namespace bcinfo |
| |