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From: David Xu <davidxu@FreeBSD.org>
Date: Tue, 10 Jul 2012 01:47:12 +0000 (UTC)
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Subject: svn commit: r238328 - head/lib/libc/i386/gen
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Author: davidxu
Date: Tue Jul 10 01:47:11 2012
New Revision: 238328
URL: http://svn.freebsd.org/changeset/base/238328

Log:
  Executing CPUID with EAX set to 1 to actually get feature flags.
  PR:	169730

Modified:
  head/lib/libc/i386/gen/getcontextx.c

Modified: head/lib/libc/i386/gen/getcontextx.c
==============================================================================
--- head/lib/libc/i386/gen/getcontextx.c	Tue Jul 10 01:32:52 2012	(r238327)
+++ head/lib/libc/i386/gen/getcontextx.c	Tue Jul 10 01:47:11 2012	(r238328)
@@ -68,7 +68,7 @@ __getcontextx_size(void)
 			    "	movl	%%ebx,%1\n"
 			    "	popl	%%ebx\n"
 			    : "=a" (p[0]), "=r" (p[1]), "=c" (p[2]), "=d" (p[3])
-			    :  "0" (0x0));
+			    :  "0" (0x1));
 			if ((p[2] & CPUID2_OSXSAVE) != 0) {
 				__asm __volatile(
 				    "	pushl	%%ebx\n"