1317021Sdim//===-- xray_fdr_logging.h ------------------------------------------------===// 2317021Sdim// 3353358Sdim// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4353358Sdim// See https://llvm.org/LICENSE.txt for license information. 5353358Sdim// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6317021Sdim// 7317021Sdim//===----------------------------------------------------------------------===// 8317021Sdim// 9317021Sdim// This file is a part of XRay, a function call tracing system. 10317021Sdim// 11317021Sdim//===----------------------------------------------------------------------===// 12317021Sdim#ifndef XRAY_XRAY_FDR_LOGGING_H 13317021Sdim#define XRAY_XRAY_FDR_LOGGING_H 14317021Sdim 15317021Sdim#include "xray/xray_log_interface.h" 16317021Sdim#include "xray_fdr_log_records.h" 17317021Sdim 18317021Sdim// FDR (Flight Data Recorder) Mode 19317021Sdim// =============================== 20317021Sdim// 21317021Sdim// The XRay whitepaper describes a mode of operation for function call trace 22317021Sdim// logging that involves writing small records into an in-memory circular 23317021Sdim// buffer, that then gets logged to disk on demand. To do this efficiently and 24317021Sdim// capture as much data as we can, we use smaller records compared to the 25317021Sdim// default mode of always writing fixed-size records. 26317021Sdim 27317021Sdimnamespace __xray { 28317021SdimXRayLogInitStatus fdrLoggingInit(size_t BufferSize, size_t BufferMax, 29317021Sdim void *Options, size_t OptionsSize); 30317021SdimXRayLogInitStatus fdrLoggingFinalize(); 31317021Sdimvoid fdrLoggingHandleArg0(int32_t FuncId, XRayEntryType Entry); 32327952Sdimvoid fdrLoggingHandleArg1(int32_t FuncId, XRayEntryType Entry, uint64_t Arg1); 33317021SdimXRayLogFlushStatus fdrLoggingFlush(); 34317021SdimXRayLogInitStatus fdrLoggingReset(); 35317021Sdim 36317021Sdim} // namespace __xray 37317021Sdim 38317021Sdim#endif // XRAY_XRAY_FDR_LOGGING_H 39