1 files changed, 55 insertions, 0 deletions
diff --git a/lldb/source/Plugins/Trace/intel-pt/ThreadDecoder.cpp b/lldb/source/Plugins/Trace/intel-pt/ThreadDecoder.cpp
new file mode 100644
index 000000000000..8b90afb219af
--- /dev/null
+++ b/lldb/source/Plugins/Trace/intel-pt/ThreadDecoder.cpp
@@ -0,0 +1,55 @@
+//===-- ThreadDecoder.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 "ThreadDecoder.h"
+
+#include "llvm/Support/MemoryBuffer.h"
+
+#include "../common/ThreadPostMortemTrace.h"
+#include "LibiptDecoder.h"
+#include "TraceIntelPT.h"
+
+#include <utility>
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::trace_intel_pt;
+using namespace llvm;
+
+ThreadDecoder::ThreadDecoder(const ThreadSP &thread_sp, TraceIntelPT &trace)
+    : m_thread_sp(thread_sp), m_trace(trace) {}
+
+Expected<DecodedThreadSP> ThreadDecoder::Decode() {
+  if (!m_decoded_thread.hasValue()) {
+    if (Expected<DecodedThreadSP> decoded_thread = DoDecode()) {
+      m_decoded_thread = *decoded_thread;
+    } else {
+      return decoded_thread.takeError();
+    }
+  }
+  return *m_decoded_thread;
+}
+
+llvm::Expected<DecodedThreadSP> ThreadDecoder::DoDecode() {
+  return m_trace.GetTimer()
+      .ForThread(m_thread_sp->GetID())
+      .TimeTask<Expected<DecodedThreadSP>>(
+          "Decoding instructions", [&]() -> Expected<DecodedThreadSP> {
+            DecodedThreadSP decoded_thread_sp =
+                std::make_shared<DecodedThread>(m_thread_sp);
+
+            Error err = m_trace.OnThreadBufferRead(
+                m_thread_sp->GetID(), [&](llvm::ArrayRef<uint8_t> data) {
+                  return DecodeSingleTraceForThread(*decoded_thread_sp, m_trace,
+                                                    data);
+                });
+
+            if (err)
+              return std::move(err);
+            return decoded_thread_sp;
+          });
+}