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authorRoland McGrath <roland@hack.frob.com>2012-08-09 10:04:56 -0700
committerRoland McGrath <roland@hack.frob.com>2012-08-09 10:04:56 -0700
commita4ca51951804c14a5a8e331747649ca767bd8524 (patch)
tree76447f78f204b8b3f6e2ee21b10b00c2e224835c /ports/sysdeps/arm/arm-features.h
parent33b4a91e5b7935d68c50047f37b55056e5545b09 (diff)
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Don't check HWCAP_ARM_VFP in OS-generic code.
Presume VFP if compiled without __SOFTFP__ defined.
Diffstat (limited to 'ports/sysdeps/arm/arm-features.h')
-rw-r--r--ports/sysdeps/arm/arm-features.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/ports/sysdeps/arm/arm-features.h b/ports/sysdeps/arm/arm-features.h
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+++ b/ports/sysdeps/arm/arm-features.h
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+/* Macros to test for CPU features on ARM. Generic ARM version.
+ Copyright (C) 2012 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _ARM_ARM_FEATURES_H
+#define _ARM_ARM_FEATURES_H 1
+
+/* An OS-specific arm-features.h file should define ARM_HAVE_VFP to
+ an appropriate expression for testing at runtime whether the VFP
+ hardware is present. We'll then redefine it to a constant if we
+ know at compile time that we can assume VFP. */
+
+#ifndef __SOFTFP__
+/* The compiler is generating VFP instructions, so we're already
+ assuming the hardware exists. */
+# undef ARM_HAVE_VFP
+# define ARM_HAVE_VFP 1
+#endif
+
+#endif /* arm-features.h */