| //===-- TraceIntelPTSessionFileParser.cpp ---------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "TraceIntelPTSessionFileParser.h" |
| |
| #include "../common/ThreadPostMortemTrace.h" |
| #include "TraceIntelPT.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| using namespace lldb_private::trace_intel_pt; |
| using namespace llvm; |
| |
| StringRef TraceIntelPTSessionFileParser::GetSchema() { |
| static std::string schema; |
| if (schema.empty()) { |
| schema = TraceSessionFileParser::BuildSchema(R"({ |
| "type": "intel-pt", |
| "cpuInfo": { |
| "vendor": "intel" | "unknown", |
| "family": integer, |
| "model": integer, |
| "stepping": integer |
| } |
| })"); |
| } |
| return schema; |
| } |
| |
| pt_cpu TraceIntelPTSessionFileParser::ParsePTCPU( |
| const JSONTraceIntelPTCPUInfo &cpu_info) { |
| return {cpu_info.vendor.compare("intel") == 0 ? pcv_intel : pcv_unknown, |
| static_cast<uint16_t>(cpu_info.family), |
| static_cast<uint8_t>(cpu_info.model), |
| static_cast<uint8_t>(cpu_info.stepping)}; |
| } |
| |
| TraceSP TraceIntelPTSessionFileParser::CreateTraceIntelPTInstance( |
| const pt_cpu &cpu_info, std::vector<ParsedProcess> &parsed_processes) { |
| std::vector<ThreadPostMortemTraceSP> threads; |
| for (const ParsedProcess &parsed_process : parsed_processes) |
| threads.insert(threads.end(), parsed_process.threads.begin(), |
| parsed_process.threads.end()); |
| |
| TraceSP trace_instance(new TraceIntelPT(cpu_info, threads)); |
| for (const ParsedProcess &parsed_process : parsed_processes) |
| parsed_process.target_sp->SetTrace(trace_instance); |
| |
| return trace_instance; |
| } |
| |
| Expected<TraceSP> TraceIntelPTSessionFileParser::Parse() { |
| json::Path::Root root("traceSession"); |
| JSONTraceSession<JSONTraceIntelPTSettings> session; |
| if (!json::fromJSON(m_trace_session_file, session, root)) |
| return CreateJSONError(root, m_trace_session_file); |
| |
| if (Expected<std::vector<ParsedProcess>> parsed_processes = |
| ParseCommonSessionFile(session)) |
| return CreateTraceIntelPTInstance(ParsePTCPU(session.trace.cpuInfo), |
| *parsed_processes); |
| else |
| return parsed_processes.takeError(); |
| } |