From: Sebastian Huber <sebastian.huber@embedded-brains.de>
To: newlib@sourceware.org
Subject: Re: [PATCH v3 3/5] Introduce _REENT_GLOBAL_STDIO_STREAMS
Date: Fri, 30 Jun 2017 08:58:00 -0000 [thread overview]
Message-ID: <1068535433.14282.1498813082840.JavaMail.zimbra@embedded-brains.de> (raw)
In-Reply-To: <20170630081306.GA6201@calimero.vinschen.de>
----- Am 30. Jun 2017 um 10:13 schrieb Corinna Vinschen vinschen@redhat.com:
> On Jun 30 07:43, Sebastian Huber wrote:
>> On 29/06/17 20:31, Corinna Vinschen wrote:
>>
>> > And, JFYI, Cygwin will start to use it too after the next release:)
>>
>> There are some new problems with this change. We have no reference counting
>> in the FILE objects, so a freopen(..., stdin), closes the global stdin FILE
>> object (__sf[0]), etc. What works is a stdin = fopen(). I guess this could
>> break existing applications.
>
> Erm... isn't that expected behaviour? stdin/stdout/stderr are global
> objects, after all. They were never thread-local per POSIX.
The stdin/stdout/stderr pointers are still thread-local with this option. Only the FILE objects itself are now global. If you do a stdin = fopen() you get a completely thread-local stdin. I have absolutely no idea why this stuff is thread-local in Newlib by default.
next prev parent reply other threads:[~2017-06-30 8:58 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-29 12:25 [PATCH v3 1/5] Remove superfluous parameter from std() Sebastian Huber
2017-06-29 12:25 ` [PATCH v3 5/5] Add --enable-newlib-global-stdio-streams Sebastian Huber
2017-06-29 12:25 ` [PATCH v3 3/5] Introduce _REENT_GLOBAL_STDIO_STREAMS Sebastian Huber
2017-06-29 18:31 ` Corinna Vinschen
2017-06-30 5:43 ` Sebastian Huber
2017-06-30 8:13 ` Corinna Vinschen
2017-06-30 8:58 ` Sebastian Huber [this message]
2017-06-30 10:35 ` Corinna Vinschen
2018-08-08 14:10 ` Freddie Chopin
2018-08-08 15:20 ` Sebastian Huber
2018-08-09 4:59 ` Freddie Chopin
2018-08-09 6:09 ` Sebastian Huber
2017-06-29 12:25 ` [PATCH v3 4/5] Enable _REENT_GLOBAL_STDIO_STREAMS for RTEMS Sebastian Huber
2017-06-29 12:25 ` [PATCH v3 2/5] Add stdin_init(), stdout_init() and stderr_init() Sebastian Huber
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