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//===-- IntelPTPerThreadProcessTrace.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 "IntelPTPerThreadProcessTrace.h"
#include <optional>
using namespace lldb;
using namespace lldb_private;
using namespace process_linux;
using namespace llvm;
bool IntelPTPerThreadProcessTrace::TracesThread(lldb::tid_t tid) const {
return m_thread_traces.TracesThread(tid);
}
Error IntelPTPerThreadProcessTrace::TraceStop(lldb::tid_t tid) {
return m_thread_traces.TraceStop(tid);
}
Error IntelPTPerThreadProcessTrace::TraceStart(lldb::tid_t tid) {
if (m_thread_traces.GetTotalBufferSize() + m_tracing_params.ipt_trace_size >
static_cast<size_t>(*m_tracing_params.process_buffer_size_limit))
return createStringError(
inconvertibleErrorCode(),
"Thread %" PRIu64 " can't be traced as the process trace size limit "
"has been reached. Consider retracing with a higher "
"limit.",
tid);
return m_thread_traces.TraceStart(tid, m_tracing_params);
}
TraceIntelPTGetStateResponse IntelPTPerThreadProcessTrace::GetState() {
TraceIntelPTGetStateResponse state;
m_thread_traces.ForEachThread(
[&](lldb::tid_t tid, const IntelPTSingleBufferTrace &thread_trace) {
state.traced_threads.push_back(
{tid,
{{IntelPTDataKinds::kIptTrace, thread_trace.GetIptTraceSize()}}});
});
return state;
}
Expected<std::optional<std::vector<uint8_t>>>
IntelPTPerThreadProcessTrace::TryGetBinaryData(
const TraceGetBinaryDataRequest &request) {
return m_thread_traces.TryGetBinaryData(request);
}
Expected<std::unique_ptr<IntelPTPerThreadProcessTrace>>
IntelPTPerThreadProcessTrace::Start(const TraceIntelPTStartRequest &request,
ArrayRef<lldb::tid_t> current_tids) {
std::unique_ptr<IntelPTPerThreadProcessTrace> trace(
new IntelPTPerThreadProcessTrace(request));
Error error = Error::success();
for (lldb::tid_t tid : current_tids)
error = joinErrors(std::move(error), trace->TraceStart(tid));
if (error)
return std::move(error);
return std::move(trace);
}
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