LLVM  9.0.0svn
FileHeaderReader.h
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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_LIB_XRAY_FILEHEADERREADER_H_
14 #define LLVM_LIB_XRAY_FILEHEADERREADER_H_
15 
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  uint32_t &OffsetPtr);
28 
29 } // namespace xray
30 } // namespace llvm
31 
32 #endif // LLVM_LIB_XRAY_FILEHEADERREADER_H_
This class represents lattice values for constants.
Definition: AllocatorList.h:23
Expected< XRayFileHeader > readBinaryFormatHeader(DataExtractor &HeaderExtractor, uint32_t &OffsetPtr)
Convenience function for loading the file header given a data extractor at a specified offset...