1 //===-- Trace.cpp ---------------------------------------------------------===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
28 // Helper structs used to extract the type of a JSON trace bundle description
36 namespace json {  namespace
40   json::ObjectMapper o(value, path);  in fromJSON()
44 } // namespace json
57   return it->second;  in Lookup()
65   return &it->second;  in LookupAsPtr()
75   return Lookup(it->second, k2);  in Lookup()
84   return LookupAsPtr(it->second, k2);  in LookupAsPtr()
91       "no trace plug-in matches the specified type: \"%s\"",  in createInvalidPlugInError()
103                              "could not open input file: %s - %s.",  in LoadPostMortemTraceFromFile()
108   Expected<json::Value> session_file =  in LoadPostMortemTraceFromFile()
109       json::parse(buffer_or_error.get()->getBuffer().str());  in LoadPostMortemTraceFromFile()
120     Debugger &debugger, const json::Value &trace_bundle_description,  in FindPluginForPostMortemProcess()
123   json::Path::Root root("traceBundle");  in FindPluginForPostMortemProcess()
124   if (!json::fromJSON(trace_bundle_description, json_bundle, root))  in FindPluginForPostMortemProcess()
138                              "Can't trace non-live processes");  in FindPluginForLiveProcess()
148   StringRef schema = PluginManager::GetTraceSchema(name);  in FindPluginSchema()  local
149   if (!schema.empty())  in FindPluginSchema()
150     return schema;  in FindPluginSchema()
155 Error Trace::Start(const llvm::json::Value &request) {  in Start()
160   return m_live_process->TraceStart(request);  in Start()
168   return m_live_process->TraceStop(TraceStopRequest(GetPluginName()));  in Stop()
176   return m_live_process->TraceStop(TraceStopRequest(GetPluginName(), tids));  in Stop()
184   return m_live_process->TraceGetState(GetPluginName());  in GetLiveProcessState()
216       m_live_process->TraceGetBinaryData(request);  in GetLiveTraceBinaryData()
221   if (data->size() != expected_size)  in GetLiveTraceBinaryData()
226                 request.kind, expected_size, data->size(), request.tid,  in GetLiveTraceBinaryData()
261   return m_live_process->TraceGetBinaryData(request);  in GetLiveCpuBinaryData()
287   uint32_t new_stop_id = m_live_process->GetStopID();  in RefreshLiveProcessState()
297   auto do_refresh = [&]() -> Error {  in RefreshLiveProcessState()
303         json::parse<TraceGetStateResponse>(*json_string,  in RefreshLiveProcessState()
308     if (live_process_state->warnings) {  in RefreshLiveProcessState()
309       for (std::string &warning : *live_process_state->warnings)  in RefreshLiveProcessState()
314          live_process_state->traced_threads) {  in RefreshLiveProcessState()
321              live_process_state->traced_threads.size());  in RefreshLiveProcessState()
323     if (live_process_state->cpus) {  in RefreshLiveProcessState()
325       for (const TraceCpuState &cpu_state : *live_process_state->cpus) {  in RefreshLiveProcessState()
326         m_storage.cpus->push_back(cpu_state.id);  in RefreshLiveProcessState()
332                live_process_state->cpus->size());  in RefreshLiveProcessState()
335     for (const TraceBinaryData &item : live_process_state->process_binary_data)  in RefreshLiveProcessState()
344     return m_storage.live_refresh_error->c_str();  in RefreshLiveProcessState()
434   return callback(it.first->second);  in OnLiveCpuBinaryDataRead()
443         inconvertibleErrorCode(), "Failed fetching trace-related file %s. %s",  in OnDataFileRead()
489       [&](std::vector<cpu_id_t>::iterator cpu_id) -> Error {  in OnAllCpusBinaryDataRead()
490     if (cpu_id == storage.cpus->end())  in OnAllCpusBinaryDataRead()
494                                [&](ArrayRef<uint8_t> data) -> Error {  in OnAllCpusBinaryDataRead()
501   return process_cpu(storage.cpus->begin());  in OnAllCpusBinaryDataRead()