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From: Josef Wolf <jw@raven.inka.de>
To: newlib@sourceware.org
Subject: Re: undefined references since newlib-3.2.0
Date: Sat, 13 Jun 2020 10:27:09 +0200	[thread overview]
Message-ID: <20200613082709.GF15174@raven.inka.de> (raw)
In-Reply-To: <87v9jvhltw.fsf@keithp.com>

Thanks for your reply, Keith!

On Fri, Jun 12, 2020 at 05:05:15PM -0700, Keith Packard wrote:
> Josef Wolf <jw@raven.inka.de> writes:
> 
> > This patch replaces Balloc() by eBalloc() which calls __assert_func() on
> > failure which in turn calls exit() and/or abort()
> 
> As an interim step, having a fix available sooner was a good thing.

I see. But at a first glance, returning NULL seems to be not much more work.

> > Shouldn't those library functions simply report the error by returning NULL to
> > the caller and let the application handle the situation?
> 
> It's complicated by the libc API which doesn't have defined error return
> values for all of the affected APIs.

I don't really understand this. The classical way to return error from
functions returning a pointer is to return NULL. One has to make sure not to
leak, of course. Which return values would be needed beyond NULL?

-- 
Josef Wolf
jw@raven.inka.de

  reply	other threads:[~2020-06-13  8:30 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-09  8:00 Wolf, Josef
2020-06-12  8:21 ` Josef Wolf
2020-06-12 22:50   ` Josef Wolf
2020-06-13  0:05     ` Keith Packard
2020-06-13  8:27       ` Josef Wolf [this message]
2020-06-13 17:20         ` Keith Packard
2020-06-14 14:50           ` Josef Wolf
2020-06-14 17:02             ` Keith Packard
2020-06-14 17:40               ` Brian Inglis
2020-06-14 20:13                 ` Keith Packard
2020-06-15  4:53               ` Dimitrios Glynos
2020-06-16  3:43                 ` Keith Packard
2020-06-17 11:36           ` Josef Wolf
2020-06-13 10:31     ` Jeffrey Walton

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