From: Daniel Jacobowitz <drow@false.org>
To: Chet Ramey <chet.ramey@case.edu>
Cc: Nick Roberts <nickrob@snap.net.nz>,
Jan Kratochvil <jan.kratochvil@redhat.com>,
gdb-patches@sourceware.org
Subject: Re: [patch] Fix testsuite annotate-quit race (PR 544)
Date: Tue, 25 Mar 2008 02:53:00 -0000 [thread overview]
Message-ID: <20080325025330.GA4677@caradoc.them.org> (raw)
In-Reply-To: <47E84EEA.8000801@case.edu>
On Mon, Mar 24, 2008 at 09:01:30PM -0400, Chet Ramey wrote:
> Daniel Jacobowitz wrote:
>
>> What I think is happening is that rl_redisplay has some optimizations
>> which cause it not to redisplay. And since we have a custom function
>> installed readline isn't calling the alternate hooks that force
>> display. So rl_redisplay does not actually meet the interface
>> associated with rl_redisplay_function despite being its default
>> value. Nasty.
>
> That's interesting, if true. Can anyone add detail confirming this?
Sure. There's a check "rl_redisplay_function == rl_redisplay" in the
readline source, and another in the definition of
CUSTOM_REDISPLAY_FUNCTION. So that function is inherently special.
From what Nick and Jan have found, stty -echo and then running GDB
with a custom redisplay function that just calls rl_redisplay
will not display the GDB prompt.
--
Daniel Jacobowitz
CodeSourcery
next prev parent reply other threads:[~2008-03-25 2:53 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-18 22:55 Jan Kratochvil
2008-03-18 23:18 ` Daniel Jacobowitz
2008-03-19 8:11 ` Jan Kratochvil
2008-03-19 8:46 ` Nick Roberts
2008-03-19 9:31 ` Jan Kratochvil
2008-03-19 9:56 ` Nick Roberts
2008-03-19 10:13 ` Jan Kratochvil
2008-03-21 20:45 ` Jan Kratochvil
2008-03-21 21:04 ` Daniel Jacobowitz
2008-03-21 21:45 ` Daniel Jacobowitz
2008-03-23 11:01 ` Nick Roberts
2008-03-23 16:30 ` Daniel Jacobowitz
2008-03-23 16:44 ` Jan Kratochvil
2008-03-23 17:30 ` Daniel Jacobowitz
2008-03-24 0:07 ` Nick Roberts
2008-03-24 2:58 ` Daniel Jacobowitz
2008-03-24 7:42 ` Jan Kratochvil
2008-03-24 12:00 ` Daniel Jacobowitz
2008-03-24 13:03 ` Jan Kratochvil
2008-03-24 13:27 ` Daniel Jacobowitz
2008-03-25 1:02 ` Chet Ramey
2008-03-25 2:53 ` Daniel Jacobowitz [this message]
2008-03-25 15:56 ` Chet Ramey
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