Failing tests on Linux

Hi,

There are 6 tests in the lldb test framework (ninja check-lldb) which fail on Linux:

Failing Tests (6):
LLDB :: ExecControl/StopHook/stop-hook-threads.test
lldb-Suite :: functionalities/data-formatter/data-formatter-stl/libcxx/function/TestLibCxxFunction.py
lldb-Suite :: functionalities/data-formatter/data-formatter-stl/libcxx/list/loop/TestDataFormatterLibcxxListLoop.py
lldb-Suite :: functionalities/data-formatter/data-formatter-stl/libcxx/variant/TestDataFormatterLibcxxVariant.py
lldb-Suite :: functionalities/register/register_command/TestRegisters.py
lldb-Suite :: tools/lldb-server/TestGdbRemoteRegisterState.py

Seems like libcxx test issues are related, so I have created 4 new bugs:
https://bugs.llvm.org/show_bug.cgi?id=39954

https://bugs.llvm.org/show_bug.cgi?id=39955

https://bugs.llvm.org/show_bug.cgi?id=39958

https://bugs.llvm.org/show_bug.cgi?id=39959

Thanks & Regards
Gabor