Re: [PATCH v6 6/8] gdbstub: Allow late attachment

[Alex Bennée]

Ilya Leoshkevich <iii@linux.ibm.com> writes:

> Allow debugging individual processes in multi-process applications by
> starting them with export QEMU_GDB=/tmp/qemu-%d.sock,suspend=n.
> Currently one would have to attach to every process to ensure the app
> makes progress.
>
> In case suspend=n is not specified, the flow remains unchanged. If it
> is specified, then accepting the client connection is delegated to a
> thread. In the future this machinery may be reused for handling
> reconnections and interruptions.
>
> On accepting a connection, the thread schedules gdb_handlesig() on the
> first CPU and wakes it up with host_interrupt_signal. Note that the
> result of this gdb_handlesig() invocation is handled, as opposed to
> many other existing call sites. These other call sites probably need to
> be fixed separately.
>
> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro