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From: Florian Weimer <fweimer@redhat.com>
To: Rich Felker <dalias@libc.org>
Cc: Natanael Copa <ncopa@alpinelinux.org>,
	 musl@lists.openwall.com,
	 "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Subject: Re: [musl] [PATCH] don't set errno in free
Date: Thu, 21 Jan 2021 17:20:47 +0100	[thread overview]
Message-ID: <8735yuuuqo.fsf@oldenburg.str.redhat.com> (raw)
In-Reply-To: <20210121161807.GN23432@brightrain.aerifal.cx> (Rich Felker's message of "Thu, 21 Jan 2021 11:18:08 -0500")

* Rich Felker:

> This is much costlier. It puts the TLS access (faulting and emulating
> on old MIPS) in the path that runs on every call.

It's also a significant hit on certain modern AArch64 variants, which is
a bit sad.

Thanks,
Florian
-- 
Red Hat GmbH, https://de.redhat.com/ , Registered seat: Grasbrunn,
Commercial register: Amtsgericht Muenchen, HRB 153243,
Managing Directors: Charles Cachera, Brian Klemm, Laurie Krebs, Michael O'Neill


  reply	other threads:[~2021-01-21 16:21 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20210121140240.83405-1-alex_y_xu.ref@yahoo.ca>
2021-01-21 14:02 ` Alex Xu (Hello71)
2021-01-21 15:50   ` Natanael Copa
2021-01-21 16:18     ` Rich Felker
2021-01-21 16:20       ` Florian Weimer [this message]
2021-01-21 16:31       ` Natanael Copa
2021-01-21 16:27   ` Rich Felker

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