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Date:	Thu, 24 Feb 2000 12:02:21 -0500
From:	Chris Faylor <cgf AT cygnus DOT com>
To:	efifer AT sanwaint DOT com
Cc:	cygwin-developers AT sourceware DOT cygnus DOT com
Subject:	[jjohnstn AT cygnus DOT com: Re: A patch from the net]
Message-ID:	<20000224120221.J3326@cygnus.com>
Reply-To:	cygwin-developers AT sourceware DOT cygnus DOT com
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----- Forwarded message from "J. Johnston" <jjohnstn AT cygnus DOT com> -----

From: "J. Johnston" <jjohnstn AT cygnus DOT com>
To: Chris Faylor <cgf AT cygnus DOT com>
Subject: Re: A patch from the net
Date: Thu, 24 Feb 2000 11:13:42 -0500
Organization: Cygnus Solutions

Chris Faylor wrote:
> 
> Does this make sense?
> 
> cgf
> 

Yes and no.  It will end up regressing newlib at least on some embedded platforms.
The code in findfp was originally changed by myself to fix PR15319
whereby gdb used with the simulator wasn't flushing output properly.
This is because __smakebuf does not correctly reset to line buffered
because often returns -1 on embedded platforms that don't have file I/O.  

Thus, we screw up debugging simple test cases with printfs in them.

This code was originally changed to fix PR15319.  If it is a Cygwin
issue where fstat does indeed work, add a check in the code.

-- Jeff J.


> diff -ur newlib.orig/ChangeLog newlib/ChangeLog
> --- newlib.orig/ChangeLog       Tue Feb 01 04:58:58 2000
> +++ newlib/ChangeLog    Fri Feb 18 13:31:18 2000
> @@ -1,3 +1,9 @@
> +Fri Feb 18 13:25:59 2000  Eric Fifer <efifer AT sanwaint DOT com>
> +
> +       * libc/stdio/findfp.c (__sinit): stdout should be fully
> +       buffered by default, code in makebuf.c (__smakebuf) already
> +       asserts line buffering on tty devices.
> +
>  Thu Jan 20 18:57:00 2000  Fernando Nasser <fnasser AT redhat DOT com>
> 
>         * setvbuf.c (setvbuf):  Set size to BUFSIZ when passed a zero size
> diff -ur newlib.orig/libc/stdio/findfp.c newlib/libc/stdio/findfp.c
> --- newlib.orig/libc/stdio/findfp.c     Fri Aug 27 23:15:06 1999
> +++ newlib/libc/stdio/findfp.c  Fri Feb 18 10:23:52 2000
> @@ -144,7 +144,7 @@
>    s->__sdidinit = 1;
> 
>    std (s->__sf + 0, __SRD, 0, s);
> -  std (s->__sf + 1, __SWR | __SLBF, 1, s);
> +  std (s->__sf + 1, __SWR, 1, s);
>    std (s->__sf + 2, __SWR | __SNBF, 2, s);
> 
>    s->__sglue._next = NULL;

----- End forwarded message -----

-- 
cgf AT cygnus DOT com                        Cygnus Solutions, a Red Hat company
http://sourcware.cygnus.com/          http://www.redhat.com/

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