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Message-ID: <20210203225518.GY23432@brightrain.aerifal.cx>
Date: Wed, 3 Feb 2021 17:55:18 -0500
From: Rich Felker <dalias@...c.org>
To: Dominic Chen <d.c.ddcc@...il.com>
Cc: fweimer@...hat.com, musl@...ts.openwall.com
Subject: Re: Incorrect thread TID caching
On Wed, Feb 03, 2021 at 05:30:01PM -0500, Dominic Chen wrote:
>
> On 2/3/2021 4:01 PM, Rich Felker wrote:
> >OK, raise should probably just be changed here to work even in vforked
> >child since it seems plausible someone will use it there. It's not
> >like saving the syscall actually matters here. But that's independent
> >of the clone() issue.
>
> Sounds good, thanks!
Hm, looking at how to do this now, and if clone is going to behave
like _Fork, it needs to be able to run code in the child (to restore
the signals is masked, etc.), which means it needs to wrap the child
function passed to it. I think this is doable, but it's not entirely
trivial.
Rich
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