From: Eric Blake <eblake@redhat.com>
To: cygwin@cygwin.com, Steven Penny <svnpenn@gmail.com>
Subject: Re: [ANNOUNCEMENT] Updated: libreadline7-7.0.3-3
Date: Thu, 27 Jul 2017 21:37:00 -0000 [thread overview]
Message-ID: <5dbbf0e4-6374-a9bb-21e5-dd5537e0e19a@redhat.com> (raw)
In-Reply-To: <58f1a28e.0a2c9d0a.f2ec.8160@mx.google.com>
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On 04/14/2017 11:33 PM, Steven Penny wrote:
> On Thu, 13 Apr 2017 13:48:04, Eric Blake wrote:
>> Is it still a problem with pselect, where rebuilding with the same
>> configuration as 7.0.1-2 fixes things?
I've got some time today to look at building readline, but for the life
of me, I can't figure out what I'm supposed to be debugging. You have
so many emails saying "see this earlier URL" that I am lost in what you
are saying is wrong or how to reproduce it.
I'm currently testing with:
bash 4.4.12-3
cygwin 2.8.2-1
libreadline7 7.0.3-3 (or self-built)
> I'm really not sure how to even
>> go about debugging this one, and it's not my highest priority at the
>> moment (I've got coreutils 8.27 to build for cygwin, and autoconf 2.70
>> to release upstream). So any help is welcome.
>
> Ok. I have not gone through the whole commit, as it is huge:
>
> http://cygwin.com/ml/cygwin/2017-01/msg00204.html
>
> but I did find something. Using:
>
> git checkout readline-7.0-alpha~1
>
> for the last good commit and:
>
> git checkout readline-7.0-alpha
>
> for the first bad commit, I found that the change to the "rl_insert"
> function in
> "text.c" breaks pasting and Alt codes with "chcp.com 65001". Can you
> work with
> this?
Thanks again for trying to narrow things down. I have recompiled
readline locally with optimizations turned off (so it's easier for me to
see what's going on), and am set up to run gdb on bash with a given
readline executable installed. If you have really narrowed the problem
to rl_insert(), that's at least something I can investigate.
But where I'm stuck now is what works for you and what you think is
wrong. Is this something where I can start bash under mintty, or do I
have to start under cmd? Right there, I already see a difference with
the two environments. Starting from cmd, I did:
c:\cygwin\bin> od -tx1
<Alt-num2-num3-num4><Enter><Ctrl-d>
which displayed
Ω
00000000 ce a9 0z
0000003
so I did indeed insert GREEK CAPITAL LETTER OMEGA U+03A9.
But trying the same thing under a bash session in minty shows:
ê
0000000 c3 aa 0a
0000003
so that is not the same character. I'm not sure if a code page change
is supposed to alter what I see.
So I'm back to cmd to try and debug things. Next, I tried:
c:\cygwin\bin> .\dash
<alt-num2-num3-num4>
and again got Ω; pressing <enter> complains that ./dash: 1: Ω: not found
However, when I try:
c:\cygwin\bin> .\bash --norc
<alt-num2-num3-num4>
the display shows :\251
and hitting <Enter> wipes out that display without doing anything. So I
_think_ I'm running into the problem you're describing, but want to make
sure, since it is different based on whether I started bash from cmd or
from mintty.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
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next prev parent reply other threads:[~2017-07-27 17:09 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-13 19:53 [ANNOUNCEMENT] Updated: libreadline7-7.0.3-3, libreadline-devel-7.0.3-3 Eric Blake (cygwin)
2017-03-25 0:46 ` Steven Penny
2017-04-13 19:07 ` [ANNOUNCEMENT] Updated: libreadline7-7.0.3-3 Steven Penny
2017-04-14 8:27 ` Eric Blake
2017-04-15 10:59 ` Steven Penny
2017-05-15 18:21 ` Eric Blake
2017-05-15 20:46 ` Chet Ramey
2017-06-18 15:53 ` Steven Penny
2017-07-04 21:53 ` Steven Penny
2017-07-27 21:37 ` Eric Blake [this message]
2017-07-27 21:39 ` Eric Blake
2017-07-27 21:46 ` Steven Penny
2017-07-28 8:28 ` Eric Blake
2017-07-28 14:55 ` Steven Penny
2017-07-28 18:31 ` Eric Blake
2017-07-28 18:39 ` Steven Penny
2017-07-28 23:55 ` Eric Blake
2017-07-29 1:55 ` Cygwin.bat (was: [ANNOUNCEMENT] Updated: libreadline7-7.0.3-3) Achim Gratz
2017-07-29 2:48 ` [ANNOUNCEMENT] Updated: libreadline7-7.0.3-3 Doug Henderson
2017-07-29 4:23 ` Steven Penny
2017-07-30 18:38 ` Doug Henderson
2017-07-30 19:54 ` Steven Penny
2017-07-29 8:45 ` Steven Penny
2017-07-29 10:08 ` Eric Blake
2017-07-31 18:36 ` Corinna Vinschen
2017-07-31 20:01 ` Steven Penny
2017-07-31 20:05 ` David Macek
2017-07-31 21:13 ` David Macek
[not found] ` <20170731200146.GD18950@calimero.vinschen.de>
[not found] ` <20170731211327.GG18950@calimero.vinschen.de>
2017-08-01 0:56 ` Steven Penny
2017-08-01 8:45 ` Corinna Vinschen
2017-08-01 14:48 ` Corinna Vinschen
2017-08-01 18:20 ` Steven Penny
2017-08-01 18:54 ` Achim Gratz
2017-08-01 19:02 ` Eric Blake
2017-08-01 7:22 ` David Macek
2017-08-01 8:46 ` Corinna Vinschen
[not found] ` <160b3569-d448-1898-3dcd-b7133a772527@SystematicSw.ab.ca>
2017-08-01 8:44 ` Corinna Vinschen
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