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Date: Mon, 31 Aug 2020 09:55:37 +0300 (MSK)
From: Alexander Monakov <amonakov@...ras.ru>
To: musl@...ts.openwall.com
cc: Theodore Dubois <tblodt@...oud.com>
Subject: Re: i386 __set_thread_area will crash if the syscall fails
On Sun, 30 Aug 2020, Rich Felker wrote:
> > Tangentially, I'm not sure why this file has so many hardcoded magic
> > numbers and no comments to explain what they are.
>
> Really it shouldn't even be external asm anymore. I'm trying to move
> as much external asm as possible to inline asm written in C, and this
> could be written entirely with __syscall() after #define
> SYSCALL_NO_TLS (recently added) and all the structures setup
> explicitly in C. I'll take a stab at doing that after fixing the bug.
I also would like an answer to a question about utter lack of comments
that your response did not directly address. This is an issue in
specialized asm implementations of math functions too, for instance.
Alexander
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