[all-commits] [llvm/llvm-project] 39572f: [lldb][Target] Clear selected frame index after a ...

[Michael Buch via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 39572f5e9168b1b44c2f9078494616fed8752086
      https://github.com/llvm/llvm-project/commit/39572f5e9168b1b44c2f9078494616fed8752086
  Author: Michael Buch <michaelbuch12 at gmail.com>
  Date:   2025-09-08 (Mon, 08 Sep 2025)

  Changed paths:
    M lldb/include/lldb/Target/StackFrameList.h
    M lldb/include/lldb/Target/Thread.h
    M lldb/source/Target/Process.cpp
    M lldb/source/Target/StackFrameList.cpp

  Log Message:
  -----------
  [lldb][Target] Clear selected frame index after a StopInfo::PerformAction (#133078)

The motivation for this patch is that
`StopInfo::GetSuggestedStackFrameIndex` would not take effect for
`InstrumentationRuntimeStopInfo` (which we plan to implement in
https://github.com/llvm/llvm-project/pull/133079). This was happening
because the instrumentation runtime plugins would run utility
expressions as part of the stop that would set the
`m_selected_frame_idx`. This means `SelectMostRelevantFrame` was never
called, and we would not be able to report the selected frame via the
`StopInfo` object.

This patch makes sure we clear the `m_selected_frame_idx` to allow
`GetSuggestedStackFrameIndex` to take effect, regardless of what the
frame recognizers choose to do.



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