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Re: [PATCH 5/5] aarch64: Allow overriding HWCAP_CPUID feature check using HWCAP_MASK
* Siddhesh Poyarekar <siddhesh@sourceware.org> [2017-05-19 23:14:20 +0530]:
> On Friday 19 May 2017 03:18 PM, Szabolcs Nagy wrote:
> > this cannot go in until somebody figures out
> > why LD_HWCAP_MASK affects the dynamic linker
> > search path, which is undesirable when masking
> > the cpuid bit.
>
> I haven't been able to reproduce the problem on aarch64 and my current
> guess is that it is specific to x86 and should have been resolved with
> HJ's patch for #21391. I'll start a separate conversation for this with
> my observations so far but unless you're able to reproduce the failure
> on aarch64, I don't see a reason for it to block this patchset.
no oom on aarch64 does not mean there is no problem
LD_HWCAP_MASK changes the behaviour of _dl_init_path
in elf/ld-load.c which we should understand before
the patch is committed (because it implies the
env var historically had different semantics than
what we assumed).