| //===-- xray_fdr_logging.h ------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file is a part of XRay, a function call tracing system. |
| // |
| //===----------------------------------------------------------------------===// |
| #ifndef XRAY_XRAY_FDR_LOGGING_H |
| #define XRAY_XRAY_FDR_LOGGING_H |
| |
| #include "xray/xray_log_interface.h" |
| #include "xray_fdr_log_records.h" |
| |
| // FDR (Flight Data Recorder) Mode |
| // =============================== |
| // |
| // The XRay whitepaper describes a mode of operation for function call trace |
| // logging that involves writing small records into an in-memory circular |
| // buffer, that then gets logged to disk on demand. To do this efficiently and |
| // capture as much data as we can, we use smaller records compared to the |
| // default mode of always writing fixed-size records. |
| |
| namespace __xray { |
| XRayLogInitStatus fdrLoggingInit(size_t BufferSize, size_t BufferMax, |
| void *Options, size_t OptionsSize); |
| XRayLogInitStatus fdrLoggingFinalize(); |
| void fdrLoggingHandleArg0(int32_t FuncId, XRayEntryType Entry); |
| void fdrLoggingHandleArg1(int32_t FuncId, XRayEntryType Entry, uint64_t Arg1); |
| XRayLogFlushStatus fdrLoggingFlush(); |
| XRayLogInitStatus fdrLoggingReset(); |
| |
| } // namespace __xray |
| |
| #endif // XRAY_XRAY_FDR_LOGGING_H |
