[Bug 1233662] Re: Missing debug helpers in QtCreator/can't view STL containers in debugger

[Vladimir Rutsky]

I'm using Qt Creator 3.0 RC1 to develop Qt 4.8-based application and
debugging application started by Qt Creator (F5) works fine.

By default I can't attach to already running process with "Operation not
permitted", but this is known security feature, you can disable it e.g.
by running from root:

echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope

See http://askubuntu.com/questions/41629/after-upgrade-gdb-wont-attach-
to-process for details.

Is your problem with ptrace_scope?

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Title:
  Missing debug helpers in QtCreator/can't view STL containers in
  debugger

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