[Lldb-commits] [PATCH] D93926: [lldb] Don't remove the lldb.debugger var after exiting the interpreter

[Nathan Lanza via Phabricator via lldb-commits]

lanza added a comment.

I guess if the intention of that is maintain the debugger instance around it should work, but at the moment it segfaults pretty quick with Xcode's lldb using:

  import threading
  import lldb
  import time
  
  def background(debugger: lldb.SBDebugger):
      while True:
          time.sleep(1)
          print(debugger)
  
  def __lldb_init_module(
    debugger: lldb.SBDebugger,
    internal_dict: dict
  ):
      threading.Thread()
      threading.Thread(target=background, args=(debugger,)).start()

and

  $ lldb a.out
  (lldb) command script import test.py
  (lldb) // do a few things
  0  lldb                                        0x00000001058d8575 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 37
  1  lldb                                        0x00000001058d7b55 llvm::sys::RunSignalHandlers() + 85
  2  lldb                                        0x00000001058d8dd6 SignalHandler(int) + 262
  3  libsystem_platform.dylib                    0x00007fff20394d7d _sigtramp + 29
  4  libsystem_platform.dylib                    0x000000010762d680 _sigtramp + 18446603344394422560
  5  liblldbPluginScriptInterpreterPython3.dylib 0x00000001059f1802 _wrap_SBDebugger___str__(_object*, _object*) + 130
  6  Python3                                     0x0000000105bf6453 cfunction_call_varargs + 323
  7  Python3                                     0x0000000105bf5dd6 _PyObject_MakeTpCall + 374
  8  Python3                                     0x0000000105cd613c call_function + 652
  9  Python3                                     0x0000000105cd26d6 _PyEval_EvalFrameDefault + 29782
  10 Python3                                     0x0000000105bf678d function_code_fastcall + 237
  11 Python3                                     0x0000000105bf7192 _PyObject_FastCall_Prepend + 178
  12 Python3                                     0x0000000105c4e527 slot_tp_str + 183
  13 Python3                                     0x0000000105c37a62 PyObject_Str + 146
  14 Python3                                     0x0000000105c09b95 PyFile_WriteObject + 149
  15 Python3                                     0x0000000105cc96f2 builtin_print + 450
  16 Python3                                     0x0000000105c34a82 cfunction_vectorcall_FASTCALL_KEYWORDS + 130
  17 Python3                                     0x0000000105cd6012 call_function + 354
  18 Python3                                     0x0000000105cd278a _PyEval_EvalFrameDefault + 29962
  19 Python3                                     0x0000000105bf678d function_code_fastcall + 237
  20 Python3                                     0x0000000105bf6124 PyVectorcall_Call + 100
  21 Python3                                     0x0000000105cd2a34 _PyEval_EvalFrameDefault + 30644
  22 Python3                                     0x0000000105bf678d function_code_fastcall + 237
  23 Python3                                     0x0000000105cd6012 call_function + 354
  24 Python3                                     0x0000000105cd26b9 _PyEval_EvalFrameDefault + 29753
  25 Python3                                     0x0000000105bf678d function_code_fastcall + 237
  26 Python3                                     0x0000000105cd6012 call_function + 354
  27 Python3                                     0x0000000105cd26b9 _PyEval_EvalFrameDefault + 29753
  28 Python3                                     0x0000000105bf678d function_code_fastcall + 237
  29 Python3                                     0x0000000105bf91e2 method_vectorcall + 322
  30 Python3                                     0x0000000105bf6124 PyVectorcall_Call + 100
  31 Python3                                     0x0000000105d7800a t_bootstrap + 74
  32 Python3                                     0x0000000105d29829 pythread_wrapper + 25
  33 libsystem_pthread.dylib                     0x00007fff20350950 _pthread_start + 224
  34 libsystem_pthread.dylib                     0x00007fff2034c47b thread_start + 15
  fish: 'lldb' terminated by signal SIGSEGV (Address boundary error)




Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D93926/new/

https://reviews.llvm.org/D93926