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Date: Wed, 22 Apr 2020 10:11:49 +0200
From: Florian Weimer <>
To: Nicholas Piggin <>
Cc: Adhemerval Zanella <>,  Rich Felker <>,  David Laight <David.Laight@...LAB.COM>,  "libc-alpha\" <>,  "libc-dev\" <>,  "linuxppc-dev\" <>,,  Segher Boessenkool <>
Subject: Re: Re: Powerpc Linux 'scv' system call ABI proposal take 2

* Nicholas Piggin:

> So I would be disinclined to use SIGSYS unless there are no other better 
> signal types, and we don't want to use SIGILL for some good reason -- is 
> there a good reason to add complexity for userspace by differentiating 
> these two situations?

No, SIGILL seems fine to me.  scv 0 and scv 1 could well be considered
different instructions eventually (with different mnemonics).

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