From: Corinna Vinschen <corinna-cygwin@cygwin.com>
To: cygwin@cygwin.com
Subject: Re: Piping on 64-bit Cygwin was Re: [ANNOUNCEMENT] llvm 3.7.1-2
Date: Wed, 22 Jun 2016 17:17:00 -0000 [thread overview]
Message-ID: <20160622153652.GB15373@calimero.vinschen.de> (raw)
In-Reply-To: <0FB21113-2A8C-4C63-9889-C0E3254C6E5A@etr-usa.com>
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On Jun 22 09:29, Warren Young wrote:
> On Jun 22, 2016, at 6:39 AM, Marco Atzeri <marco.atzeri@gmail.com> wrote:
> >
> >
> > may be is a piping problem, but there is no evidence; it could be a lot of different issues due to 64bit porting.
> > I will not be surprise if there is wrong assumption on data size.
>
> That’s my guess, too.
>
> 64-bit Windows is LLP64, while 64-bit Linux is LP64 on the same hardware.
s/Linux/Linux and Cygwin/
> That means that any binary protocol that uses C’s “long” data type
> will do the wrong thing on Cygwin, because it uses Windows’ data size
> rules for ABI compatibility with Windows.
>
> See https://en.wikipedia.org/wiki/64-bit_computing#64-bit_data_models
And https://cygwin.com/faq.html#faq.programming.64bitporting
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Maintainer cygwin AT cygwin DOT com
Red Hat
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next prev parent reply other threads:[~2016-06-22 15:37 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <953793912.12352673.1466549681179.JavaMail.yahoo.ref@mail.yahoo.com>
2016-06-21 23:12 ` lloyd.wood
2016-06-22 1:35 ` Warren Young
2016-06-22 11:46 ` lloyd.wood
2016-06-22 15:30 ` Marco Atzeri
2016-06-22 16:02 ` Warren Young
2016-06-22 17:17 ` Corinna Vinschen [this message]
2016-06-22 18:06 ` Warren Young
2016-06-22 18:40 ` Corinna Vinschen
2016-06-24 7:57 ` cyg Simple
2016-06-24 22:56 ` Corinna Vinschen
[not found] <1989991589.1040675.1465521483978.JavaMail.yahoo.ref@mail.yahoo.com>
2016-06-10 1:55 ` lloyd.wood
2016-06-21 1:44 ` Jon Turney
2016-06-21 7:48 ` Piping on 64-bit Cygwin was " lloyd.wood
2016-06-21 22:19 ` Warren Young
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