DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:content-type:mime-version:subject:from
	:in-reply-to:date:content-transfer-encoding:message-id
	:references:to; q=dns; s=default; b=YTb5AiTv4juW5CukRYRTftQ/txq6
	qRF+wufsCvz8GD9rnzTflD5ZqrpZ25dIFXsi8Mnpt00XXsuuFt6l+NFyXzEIdcMC
	LP6Nk2KWMWTxAJJT5jiBlP/CiniCjxv5yTgrpOG18IQJltzpuLi5Gh4Ph65ZAul/
	HEeJAicHEAjuiEg=
Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm
Sender: cygwin-owner@cygwin.com
Mail-Followup-To: cygwin@cygwin.com
Content-Type: text/plain; charset=utf-8
Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\))
Subject: Re: Piping on 64-bit Cygwin was Re: [ANNOUNCEMENT] llvm 3.7.1-2
From: Warren Young <wyml@etr-usa.com>
In-Reply-To: <0bafcf1a-590e-3e30-679f-117cd4aeba7a@gmail.com>
Date: Wed, 22 Jun 2016 09:29:58 -0600
Message-Id: <0FB21113-2A8C-4C63-9889-C0E3254C6E5A@etr-usa.com>
References: <953793912.12352673.1466549681179.JavaMail.yahoo.ref@mail.yahoo.com> <953793912.12352673.1466549681179.JavaMail.yahoo@mail.yahoo.com> <2118813453.12281992.1466559153922.JavaMail.yahoo@mail.yahoo.com> <0bafcf1a-590e-3e30-679f-117cd4aeba7a@gmail.com>
To: The Cygwin Mailing List <cygwin@cygwin.com>
Content-Transfer-Encoding: 8bit

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.

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
--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple