[PATCH v3 0/4] kselftest/arm64: Add coverage for the interaction of vfork() and GCS

[Mark Brown]

On Fri, Jul 04, 2025 at 01:27:28PM +0200, Thomas Weißschuh wrote:

> FYI nolibc now has a proper prctl() implementation you might want to use.

That's open coded because we absolutely cannot tolerate the prctl() to
enable GCS being anything other than inlined, returning from an actual
function call would crash.  Probably for nolibc that'd mostly work out
but it seems better to be very clear about the inlining.

> Also your vfork() selftest uncovered a bug in the brandnew SuperH support.

Ah, doing good work already!
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