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Message-ID: <20120716221853.GP544@brightrain.aerifal.cx>
Date: Mon, 16 Jul 2012 18:18:53 -0400
From: Rich Felker <dalias@...ifal.cx>
To: musl@...ts.openwall.com
Subject: Re: thread local storage
On Mon, Jul 16, 2012 at 11:30:01PM +0200, John Spencer wrote:
> On 07/16/2012 10:09 PM, Rich Felker wrote:
> >
> >This is broken and non-thread-safe. Not a good idea. Instead try:
>
> thanks, very interesting.
>
> do you mind if i forward this to the luajit ml ?
> looks as if this might fix the problem on OSX/OpenBSD as well.
Please do. This is the correct, portable fix. Using __thread or
_Thread_local might be prefered to avoid the init/cleanup need when
possible, but the POSIX fallback should be used rather than falling
back to code that will horribly crash or even yield privilege
elevation under multi-threaded use.
Rich
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