[Lldb-commits] [PATCH] D125897: [trace][intelpt] Support system-wide tracing [9] - Collect and return context switch traces

[walter erquinigo via Phabricator via lldb-commits]

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- Add collection of context switches per cpu grouped with the per-cpu intel pt traces.
- Move the state handling from the interl pt trace class to the PerfEvent one.
- Add support for stopping and enabling perf event groups.
- Return context switch entries as part of the jLLDBTraceGetState response.
- Move the triggers of whenever the process stopped or resumed. Now the will-resume notification is in a better location, which will ensure that we'll capture the instructions that will be executed.
- Add unit tests


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D125897

Files:
  lldb/include/lldb/Host/common/NativeProcessProtocol.h
  lldb/include/lldb/Utility/TraceIntelPTGDBRemotePackets.h
  lldb/source/Host/common/NativeProcessProtocol.cpp
  lldb/source/Plugins/Process/Linux/IntelPTCollector.cpp
  lldb/source/Plugins/Process/Linux/IntelPTCollector.h
  lldb/source/Plugins/Process/Linux/IntelPTMultiCoreTrace.cpp
  lldb/source/Plugins/Process/Linux/IntelPTMultiCoreTrace.h
  lldb/source/Plugins/Process/Linux/IntelPTProcessTrace.h
  lldb/source/Plugins/Process/Linux/IntelPTSingleBufferTrace.cpp
  lldb/source/Plugins/Process/Linux/IntelPTSingleBufferTrace.h
  lldb/source/Plugins/Process/Linux/IntelPTThreadTraceCollection.cpp
  lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
  lldb/source/Plugins/Process/Linux/NativeProcessLinux.h
  lldb/source/Plugins/Process/Linux/Perf.cpp
  lldb/source/Plugins/Process/Linux/Perf.h
  lldb/source/Utility/TraceIntelPTGDBRemotePackets.cpp
  lldb/test/API/commands/trace/multiple-threads/TestTraceStartStopMultipleThreads.py

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