[libc-dev] [musl] Re: Powerpc Linux 'scv' system call ABI proposal take 2

Florian Weimer via libc-dev libc-dev at lists.llvm.org
Wed Apr 22 01:11:49 PDT 2020

* 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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