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Re: valgrind support for glibc master
- From: Florian Weimer <fweimer at redhat dot com>
- To: Siddhesh Poyarekar <siddhesh at gotplt dot org>, Mark Wielaard <mjw at fedoraproject dot org>
- Cc: GNU C Library <libc-alpha at sourceware dot org>, The GNU C Library support for Fedora <glibc at lists dot fedoraproject dot org>
- Date: Fri, 23 Jun 2017 13:13:25 +0200
- Subject: Re: valgrind support for glibc master
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On 06/23/2017 01:10 PM, Siddhesh Poyarekar wrote:
> On Friday 23 June 2017 04:31 PM, Mark Wielaard wrote:
>> For now the auxv HWCAP is masked off on arm64 in valgrind fedora.
>> https://bugzilla.redhat.com/show_bug.cgi?id=1464211#c1
>> So you can reenable the sanity check again on fedora rawhide.
>>
>> Upstream bug is https://bugs.kde.org/show_bug.cgi?id=381556
>> arm64: Handle feature registers access on 4.11 Linux kernel or later
>
> A better workaround would be to mask out HWCAP_CPUID (0x800) from the HWCAP.
valgrind needs to mask out all unknown/unimplemented flags. And I
thought it was 1? LD_HWCAP_MASK=1 acts as a workaround, after all.
Thanks,
Florian