nehemiah: manually assemble xstore(-rng)
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Authored by woodsb02 on Oct 23 2021, 12:53 AM.

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Subscribers

imp

jmg

Details

Reviewers: None

Summary

It seems that clang IAS erronously adds repz prefix which should not be
there. Cpu would try to store around %ecx bytes of random, while we
only expect a word.

PR: 259218
Reported and tested by: Dennis Clarke <dclarke@blastwave.org>
Sponsored by: The FreeBSD Foundation
MFC after: 1 week

Diff Detail

Repository

rS FreeBSD src repository - subversion

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Lint Passed

Unit

No Test Coverage

Build Status

Buildable 42308
Build 39196: arc lint + arc unit

Event Timeline

woodsb02 created this revision.Oct 23 2021, 12:53 AM

Herald added subscribers: jmg, imp. · View Herald TranscriptOct 23 2021, 12:53 AM

woodsb02 requested review of this revision.Oct 23 2021, 12:53 AM

Harbormaster completed remote builds in B42308: Diff 97314.Oct 23 2021, 12:53 AM

phabricator blunder - never meant to create a review for this existing commit!?

Revision Contents
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sys/

dev/

random/

nehemiah.c

2 lines

Diff 97314

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nehemiah: manually assemble xstore(-rng)AbandonedPublicActions