lldb-rpc-server 'hangs' MacOS app won't start with debugger attached

Question

jambosas OP

Created Jan ’21

Replies 2

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Views 3.6k

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iMac 2017, latest Catalina, Xcode 11.7 and 12.3 same symptoms.

) can not attach a debugger to running app, Xcode crash or error
) starting app from Xcocde in Debug build -> lldb-rpc-server freezes, app is not starting, killing the lldb-rpc-server process starts the app without debugger.

Any Ideas on how to solve this?
Stephan

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Answer 1

jambosas OP

Jan ’21

this:
https://stackoverflow.com/questions/50483718/lldb-rpc-server-freezes-app
does not provide a solution

0

Answer 2

drsas OP

Jan ’21

First I was mislead about a possible entitlements/hardening conflict imposed by app store notification.
command tools I used to get more info:
stream log | fgrep debug
lldb <application>
yielded
error: QtDBus {0x0000000b}: invalid abbreviation code 1, please file a bug and attach the file at the start of this error message
then I removed the QtDBus framework, then lldb would continue but fail in the load step of cocoa plugin.
This was pointing to a Qt problem, I updated from Qt5.15.0 to Qt5.15.2 on this machine,
then the Qt apps could be debugged again with lldb

0