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Preserve %ebx across CPUID when using PIE (thanks Faustus, Anthony Basile from Gentoo).
author
Richard W.M. Jones
<rjones@redhat.com>
Sat, 17 Mar 2012 10:32:39 +0000
(10:32 +0000)
committer
Richard W.M. Jones
<rjones@redhat.com>
Sat, 17 Mar 2012 10:53:56 +0000
(10:53 +0000)
PIE on i686 uses %ebx as a base register. Don't clobber it across the
CPUID instruction.
https://bugs.gentoo.org/show_bug.cgi?id=341271
https://bugzilla.redhat.com/show_bug.cgi?id=804282
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