7b73de9ec2
I'm refactoring IntelPTThreadTrace into IntelPTSingleBufferTrace so that it can both single threads or single cores. In this diff I'm basically renaming the class, moving it to its own file, and removing all the pieces that are not used along with some basic cleanup. Differential Revision: https://reviews.llvm.org/D124648
73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
//===-- TraceIntelPTSessionSaver.cpp --------------------------------------===//
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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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#include "TraceIntelPTSessionSaver.h"
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#include "../common/TraceSessionSaver.h"
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#include "TraceIntelPT.h"
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#include "TraceIntelPTJSONStructs.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Core/ModuleList.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/SectionLoadList.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Target/ThreadList.h"
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#include "lldb/lldb-types.h"
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#include "llvm/ADT/None.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/JSON.h"
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#include <fstream>
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#include <iostream>
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#include <sstream>
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#include <string>
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using namespace lldb;
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using namespace lldb_private;
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using namespace lldb_private::trace_intel_pt;
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using namespace llvm;
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llvm::Error TraceIntelPTSessionSaver::SaveToDisk(TraceIntelPT &trace_ipt,
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FileSpec directory) {
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Process *live_process = trace_ipt.GetLiveProcess();
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if (live_process == nullptr)
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return createStringError(inconvertibleErrorCode(),
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"Saving a trace requires a live process.");
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if (std::error_code ec =
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sys::fs::create_directories(directory.GetPath().c_str()))
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return llvm::errorCodeToError(ec);
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llvm::Expected<JSONTraceIntelPTTrace> json_intel_pt_trace =
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BuildTraceSection(trace_ipt);
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if (!json_intel_pt_trace)
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return json_intel_pt_trace.takeError();
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llvm::Expected<JSONTraceSessionBase> json_session_description =
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TraceSessionSaver::BuildProcessesSection(
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*live_process, IntelPTDataKinds::kTraceBuffer, directory);
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if (!json_session_description)
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return json_session_description.takeError();
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JSONTraceIntelPTSession json_intel_pt_session{json_intel_pt_trace.get(),
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json_session_description.get()};
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return TraceSessionSaver::WriteSessionToFile(
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llvm::json::toJSON(json_intel_pt_session), directory);
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}
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llvm::Expected<JSONTraceIntelPTTrace>
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TraceIntelPTSessionSaver::BuildTraceSection(TraceIntelPT &trace_ipt) {
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llvm::Expected<pt_cpu> cpu_info = trace_ipt.GetCPUInfo();
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if (!cpu_info)
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return cpu_info.takeError();
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return JSONTraceIntelPTTrace{"intel-pt",
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JSONTraceIntelPTCPUInfo(cpu_info.get())};
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}
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