54 lines · c
1//===-- IntelPTProcessTrace.h --------------------------------- -*- C++ -*-===//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-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef liblldb_IntelPTProcessTrace_H_10#define liblldb_IntelPTProcessTrace_H_11 12#include "lldb/Utility/TraceIntelPTGDBRemotePackets.h"13#include <memory>14#include <optional>15 16namespace lldb_private {17namespace process_linux {18 19/// Interface to be implemented by each 'process trace' strategy (per cpu, per20/// thread, etc).21class IntelPTProcessTrace {22public:23 virtual ~IntelPTProcessTrace() = default;24 25 virtual void ProcessDidStop() {}26 27 virtual void ProcessWillResume() {}28 29 /// Construct a minimal jLLDBTraceGetState response for this process trace.30 virtual TraceIntelPTGetStateResponse GetState() = 0;31 32 virtual bool TracesThread(lldb::tid_t tid) const = 0;33 34 /// \copydoc IntelPTThreadTraceCollection::TraceStart()35 virtual llvm::Error TraceStart(lldb::tid_t tid) = 0;36 37 /// \copydoc IntelPTThreadTraceCollection::TraceStop()38 virtual llvm::Error TraceStop(lldb::tid_t tid) = 0;39 40 /// \return41 /// \b std::nullopt if this instance doesn't support the requested data, an42 /// \a llvm::Error if this isntance supports it but fails at fetching it,43 /// and \b Error::success() otherwise.44 virtual llvm::Expected<std::optional<std::vector<uint8_t>>>45 TryGetBinaryData(const TraceGetBinaryDataRequest &request) = 0;46};47 48using IntelPTProcessTraceUP = std::unique_ptr<IntelPTProcessTrace>;49 50} // namespace process_linux51} // namespace lldb_private52 53#endif // liblldb_IntelPTProcessTrace_H_54