[all-commits] [llvm/llvm-project] 78d4ea: [lldb][Windows] Suspend new threads when stopped (...

[Charles Zablit via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 78d4eac701720c252ed1c835d1f635a223bf70ce
      https://github.com/llvm/llvm-project/commit/78d4eac701720c252ed1c835d1f635a223bf70ce
  Author: Charles Zablit <c_zablit at apple.com>
  Date:   2026-06-04 (Thu, 04 Jun 2026)

  Changed paths:
    M lldb/source/Plugins/Process/Windows/Common/NativeProcessWindows.cpp

  Log Message:
  -----------
  [lldb][Windows] Suspend new threads when stopped (#201558)

`OnCreateThread` runs from the `DebuggerThread` loop after a
`CREATE_THREAD_DEBUG_EVENT`. Each iteration of that loop ends with a
`ContinueDebugEvent`, which on Windows resumes every thread in the
debuggee that *isn't* individually suspended with `SuspendThread`.

If a thread is created while the debuggee is stopped, all the existing
threads are suspended expect the new one. After the next
ContinueDebugEvent it just runs, while lldb's StateType still reads
eStateStopped.

This patch suspends the new thread when the debuggee is stopped.

This fixes `TestTwoHitsOneActual.py` and `TestBreakOnLambdaCapture.py`
when running the test suite with `LLDB_USE_LLDB_SERVER=1`.

rdar://178718627



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