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Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.

From: Takashi Yano <takashi dot yano at nifty dot ne dot jp>
To: newlib at sourceware dot org
Date: Thu, 5 Jul 2018 23:07:51 +0900
Subject: Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.
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References: <20180629213458.a39b9d4114bdf778deed8f49@nifty.ne.jp> <20180702102838.GB3111@calimero.vinschen.de> <20180703182230.d9675c1e742899c5bda57842@nifty.ne.jp> <20180703191942.150927ef447722f194dd73e3@nifty.ne.jp> <20180704122007.GA23676@calimero.vinschen.de> <5B3DD76B.5090205@arm.com> <20180705090851.GU3111@calimero.vinschen.de> <20180705194102.146068eda0f4f6cb37ec7d4c@nifty.ne.jp> <20180705111921.GV3111@calimero.vinschen.de> <20180705203558.4dc64ba3b33c7d371409866c@nifty.ne.jp> <20180705124900.GX3111@calimero.vinschen.de>

On Thu, 5 Jul 2018 14:49:00 +0200
Corinna Vinschen wrote:
> ...I noticed that FreeBSD handles psignal differently.  It writes the
> output immediately to STDERR_FILENO, rather than to stderr or
> fileno(stderr).  It does also not call fflush or reset the _SOFF flag.
...
> Thoughts?

Since _newlib_flockfile_start()/end() are defined in stdio/local.h, using
_newlib_flockfile_start()/end() from psignal.c is a bit painful. Moreover
there are several reports that they can not build newlib on bare metal.
Therefore, I imitated FreeBSD in a hurry just because it seems the easiest
way.

-- 
Takashi Yano <takashi.yano@nifty.ne.jp>

Attachment: 0001-Fix-newlib-functions-perror-psignal-not-to-use-write.patch
Description: Binary data

Follow-Ups:
- Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.
  - From: Jeff Johnston

References:
- Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.
  - From: Takashi Yano
- Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.
  - From: Corinna Vinschen
- Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.
  - From: Takashi Yano
- Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.
  - From: Takashi Yano
- Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.
  - From: Corinna Vinschen
- Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.
  - From: Andre Vieira (lists)
- Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.
  - From: Corinna Vinschen
- Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.
  - From: Takashi Yano
- Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.
  - From: Corinna Vinschen
- Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.
  - From: Takashi Yano
- Re: perror() changes the orientation of stderr to byte-oriented mode if stderr is not oriented yet.
  - From: Corinna Vinschen

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