Date: Sun, 12 May 2013 04:24:25 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r250552 - stable/9/sys/amd64/amd64 Message-ID: <201305120424.r4C4OPWH025250@svn.freebsd.org>
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Author: kib Date: Sun May 12 04:24:25 2013 New Revision: 250552 URL: http://svnweb.freebsd.org/changeset/base/250552 Log: MFC r250415: Correct the type for the literal used on the left side of the shift up to 63 bit positions. Do not fill the save area and do not set the saved bit in the xstate bit vector for the state which is not marked as enabled in xsave_mask. Modified: stable/9/sys/amd64/amd64/fpu.c Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/amd64/amd64/fpu.c ============================================================================== --- stable/9/sys/amd64/amd64/fpu.c Sun May 12 04:05:01 2013 (r250551) +++ stable/9/sys/amd64/amd64/fpu.c Sun May 12 04:24:25 2013 (r250552) @@ -687,8 +687,8 @@ fpugetregs(struct thread *td) offsetof(struct xstate_hdr, xstate_bv)); max_ext_n = flsl(xsave_mask); for (i = 0; i < max_ext_n; i++) { - bit = 1 << i; - if ((*xstate_bv & bit) != 0) + bit = 1ULL << i; + if ((xsave_mask & bit) == 0 || (*xstate_bv & bit) != 0) continue; bcopy((char *)fpu_initialstate + xsave_area_desc[i].offset,
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