[src/trunk]: src/lib/libm/arch Mask off the result of feenableexcept and fedi...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/64c0c4e6270a
branches:  trunk
changeset: 780698:64c0c4e6270a
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sat Aug 04 03:53:55 2012 +0000

description:
Mask off the result of feenableexcept and fedisableexcept on x86.

These shouldn't return bits outside FE_ALL_EXCEPT.

diffstat:

 lib/libm/arch/i387/fenv.c   |  8 ++++----
 lib/libm/arch/x86_64/fenv.c |  8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diffs (72 lines):

diff -r 69d307c34a2d -r 64c0c4e6270a lib/libm/arch/i387/fenv.c
--- a/lib/libm/arch/i387/fenv.c Sat Aug 04 03:52:46 2012 +0000
+++ b/lib/libm/arch/i387/fenv.c Sat Aug 04 03:53:55 2012 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: fenv.c,v 1.3 2010/08/01 06:34:38 taca Exp $ */
+/* $NetBSD: fenv.c,v 1.4 2012/08/04 03:53:55 riastradh Exp $ */
 
 /*-
  * Copyright (c) 2004-2005 David Schultz <das%FreeBSD.ORG@localhost>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: fenv.c,v 1.3 2010/08/01 06:34:38 taca Exp $");
+__RCSID("$NetBSD: fenv.c,v 1.4 2012/08/04 03:53:55 riastradh Exp $");
 
 #include <sys/param.h>
 #include <sys/sysctl.h>
@@ -472,7 +472,7 @@
                __ldmxcsr(mxcsr);
        }
 
-       return (~omask);
+       return (FE_ALL_EXCEPT & ~omask);
 }
 
 int
@@ -496,7 +496,7 @@
                __ldmxcsr(mxcsr);
        }
 
-       return (~omask);
+       return (FE_ALL_EXCEPT & ~omask);
 }
 
 int
diff -r 69d307c34a2d -r 64c0c4e6270a lib/libm/arch/x86_64/fenv.c
--- a/lib/libm/arch/x86_64/fenv.c       Sat Aug 04 03:52:46 2012 +0000
+++ b/lib/libm/arch/x86_64/fenv.c       Sat Aug 04 03:53:55 2012 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: fenv.c,v 1.1 2010/07/31 21:47:53 joerg Exp $ */
+/* $NetBSD: fenv.c,v 1.2 2012/08/04 03:53:56 riastradh Exp $ */
 
 /*-
  * Copyright (c) 2004-2005 David Schultz <das (at) FreeBSD.ORG>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: fenv.c,v 1.1 2010/07/31 21:47:53 joerg Exp $");
+__RCSID("$NetBSD: fenv.c,v 1.2 2012/08/04 03:53:56 riastradh Exp $");
 
 #include <assert.h>
 #include <fenv.h>
@@ -483,7 +483,7 @@
        mxcsr &= ~(mask << _SSE_EMASK_SHIFT);
        __ldmxcsr(mxcsr);
 
-       return (~omask);
+       return (FE_ALL_EXCEPT & ~omask);
 
 }
 
@@ -505,7 +505,7 @@
        mxcsr |= mask << _SSE_EMASK_SHIFT;
        __ldmxcsr(mxcsr);
 
-       return (~omask);
+       return (FE_ALL_EXCEPT & ~omask);
 }
 
 int