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97 lines
3.1 KiB
97 lines
3.1 KiB
4 months ago
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//===-- TraceIntelPT.h ------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLDB_SOURCE_PLUGINS_TRACE_INTEL_PT_TRACEINTELPT_H
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#define LLDB_SOURCE_PLUGINS_TRACE_INTEL_PT_TRACEINTELPT_H
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#include "IntelPTDecoder.h"
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#include "TraceIntelPTSessionFileParser.h"
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namespace lldb_private {
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namespace trace_intel_pt {
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class TraceIntelPT : public Trace {
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public:
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void Dump(Stream *s) const override;
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~TraceIntelPT() override = default;
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/// PluginInterface protocol
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/// \{
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ConstString GetPluginName() override;
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static void Initialize();
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static void Terminate();
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/// Create an instance of this class.
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///
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/// \param[in] trace_session_file
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/// The contents of the trace session file. See \a Trace::FindPlugin.
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///
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/// \param[in] session_file_dir
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/// The path to the directory that contains the session file. It's used to
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/// resolved relative paths in the session file.
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///
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/// \param[in] debugger
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/// The debugger instance where new Targets will be created as part of the
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/// JSON data parsing.
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///
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/// \return
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/// A trace instance or an error in case of failures.
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static llvm::Expected<lldb::TraceSP>
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CreateInstance(const llvm::json::Value &trace_session_file,
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llvm::StringRef session_file_dir, Debugger &debugger);
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static ConstString GetPluginNameStatic();
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uint32_t GetPluginVersion() override;
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/// \}
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llvm::StringRef GetSchema() override;
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void TraverseInstructions(
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const Thread &thread, size_t position, TraceDirection direction,
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std::function<bool(size_t index, llvm::Expected<lldb::addr_t> load_addr)>
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callback) override;
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size_t GetInstructionCount(const Thread &thread) override;
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size_t GetCursorPosition(const Thread &thread) override;
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private:
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friend class TraceIntelPTSessionFileParser;
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/// \param[in] trace_threads
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/// ThreadTrace instances, which are not live-processes and whose trace
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/// files are fixed.
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TraceIntelPT(const pt_cpu &pt_cpu,
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const std::vector<std::shared_ptr<ThreadTrace>> &traced_threads);
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/// Decode the trace of the given thread that, i.e. recontruct the traced
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/// instructions. That trace must be managed by this class.
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///
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/// \param[in] thread
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/// If \a thread is a \a ThreadTrace, then its internal trace file will be
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/// decoded. Live threads are not currently supported.
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///
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/// \return
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/// A \a DecodedThread instance if decoding was successful, or a \b
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/// nullptr if the thread's trace is not managed by this class.
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const DecodedThread *Decode(const Thread &thread);
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pt_cpu m_pt_cpu;
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std::map<std::pair<lldb::pid_t, lldb::tid_t>, ThreadTraceDecoder>
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m_trace_threads;
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};
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} // namespace trace_intel_pt
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} // namespace lldb_private
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#endif // LLDB_SOURCE_PLUGINS_TRACE_INTEL_PT_TRACEINTELPT_H
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