1 //===- FileHeaderReader.h - XRay Trace File Header Reading Function -------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file declares functions that can load an XRay log header from various 10 // sources. 11 // 12 //===----------------------------------------------------------------------===// 13 #ifndef LLVM_XRAY_FILEHEADERREADER_H 14 #define LLVM_XRAY_FILEHEADERREADER_H 15 16 #include "llvm/Support/DataExtractor.h" 17 #include "llvm/Support/Error.h" 18 #include "llvm/XRay/XRayRecord.h" 19 #include <cstdint> 20 21 namespace llvm { 22 namespace xray { 23 24 /// Convenience function for loading the file header given a data extractor at a 25 /// specified offset. 26 Expected<XRayFileHeader> readBinaryFormatHeader(DataExtractor &HeaderExtractor, 27 uint64_t &OffsetPtr); 28 29 } // namespace xray 30 } // namespace llvm 31 32 #endif // LLVM_XRAY_FILEHEADERREADER_H 33