[Lldb-commits] [PATCH] D126394: [trace][intelpt] Support system-wide tracing [14] - Decode per cpu

[walter erquinigo via Phabricator via lldb-commits]

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This should be the final patch to support intel pt decoding per cpu. It
kind of does its job by correlating subtraces delimited by PSB's with
the context switch traces. Sadly, I'm finding some anomalies, like a
user-space PSB happening during a kernel execution according to the
context switch trace.

tid = 0, core id = 29,  in_tsc = 38890678707555985, out_tsc = 38890678718659020, psb_tsc = 38890678718646466

I have to fix these issues somehow, but I'm leaving this patch here for
reference.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D126394

Files:
  lldb/source/Plugins/Trace/intel-pt/LibiptDecoder.cpp
  lldb/source/Plugins/Trace/intel-pt/LibiptDecoder.h
  lldb/source/Plugins/Trace/intel-pt/TraceIntelPTMultiCoreDecoder.cpp
  lldb/source/Plugins/Trace/intel-pt/TraceIntelPTMultiCoreDecoder.h

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