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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The 02/08/2021 15:06, Mark Brown via Libc-alpha wrote: > On Mon, Feb 08, 2021 at 02:53:16PM +0000, Dave Martin wrote: > > > Question: will this change prevent BTI executables from working under a > > non-BTI-aware ld.so? And do we care? (I think "probably not" for both, > > but I'd be interested in others' views.) > > Yes, I'd expect that we'd end up allowing a BTIed main executable > without a BTI ld.so. We already have the case where we will enable BTI > for the vDSO even if nothing outside the kernel supports BTI and BTI is > intended to interwork happily so I'd be surprised if there were > problems. note that this is unlikely to happen (as opposed to the other way: bti marked ld.so & non-bti exe) because if the libc is not built with bti then the start code (crt1.o) has no bti marking either so the exe will not get bti marked. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel