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From: Roland McGrath <roland@redhat.com>
To: Oleg Nesterov <oleg@redhat.com>
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Cc: archer@sourceware.org, utrace-devel@redhat.com
Subject: Re: gdbstub initial code, v3
In-Reply-To: Oleg Nesterov's message of  Thursday, 12 August 2010 04:37:50 +0200 <20100812023750.GA17011@redhat.com>
References: <20100811235810.GA9783@redhat.com>
	<20100812011113.GA13212@redhat.com>
	<20100812023750.GA17011@redhat.com>
Message-Id: <20100813010208.E1739400E3@magilla.sf.frob.com>
Date: Fri, 13 Aug 2010 01:02:00 -0000
X-SW-Source: 2010-q3/txt/msg00103.txt.bz2

> Indeed, gdb sees that this fd is not pipe/tcp and uses the "hardwire"
> serial_ops, but hardwire_readchar() doesn't play well with select().
> 
> Please teach gdb to use poll/select ?

If it makes it easier, could use:

	bash$ nc -l -U /tmp/socket <> /proc/ugdb &
	(gdb) target remote |nc -U /tmp/socket

for the moment.  Silly of course, but just not to be blocked on cleaning up
gdb's serial-device handling to be more nicely nonblocking.


Thanks,
Roland