On Mon, Jul 10, 2023 at 04:10:14PM -0700, John Hubbard wrote:
On 7/10/23 15:30, Mark Brown wrote:
There is a floor on binutils version for the kselftests that's more aggressive than that for the kernel itself, though that looks like RHEL 8 which has binutils 2.30 which *should* be fine for most things - the MTE tests won't build but they do have version detection so should skip, I guess you might have trouble with PAC support which doesn't have detection in the tests? It's certainly old enough that I'm surprised to hear someone doing development for anything current with it.
This used to be a development machine, but now it is sufficiently old that it is lightly used--that would explain how I could reserve it on short notice for this. Maybe I'll adopt it and upgrade to a modern distro, now that I seem to need an arm64 box.
That does seem to work around the issue at least with a quick out of tree build, including with GCC 8.
Great news! That's really helpful. And in fact, I have discovered two more things:
- The "emit_tests" target is there apparently because commit
313a4db7f3387 ("kselftest: arm64: extend toplevel skeleton Makefile") believed that it was necessary to skip emitting tests if not on the right native platform. I'm tempted to delete the entire emit_tests target in both arm64 and riscv selftests (and that also seems to work just fine) in order to simplify things, perhaps as a follow up step.
For now I'll just post the simpler fix, though.
I suspect it might've been needed at the time the patch was written but subsequent changes in the kselftest Makefile stuff have obsoleted it.