Re: [PATCH] kselftest/arm64: Add a test program to exercise the syscall ABI

On Thu, Oct 21, 2021 at 07:30:32PM +0100, Mark Brown wrote:

Currently we don't have any coverage of the syscall ABI so let's add a very dumb test program which sets up register patterns, does a sysscall and then checks that the register state after the syscall matches what we expect. The program is written in an extremely simplistic fashion with the goal of making it easy to verify that it's doing what it thinks it's doing, it is not a model of how one should write actual code.

I've pulled this into my SME series with some improvements and an additional patch on top to extend it to cover the SME ABI, I'll send the new version shortly as part of my v5 SME series - please don't apply this version.