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[04/12] Add fesetexcept: arm
This patch adds an ARM version of fesetexcept.
2016-08-11 Joseph Myers <joseph@codesourcery.com>
* sysdeps/arm/fesetexcept.c: New file.
diff --git a/sysdeps/arm/fesetexcept.c b/sysdeps/arm/fesetexcept.c
new file mode 100644
index 0000000..96a79ae
--- /dev/null
+++ b/sysdeps/arm/fesetexcept.c
@@ -0,0 +1,38 @@
+/* Set given exception flags. ARM version.
+ Copyright (C) 2016 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/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+#include <arm-features.h>
+
+int
+fesetexcept (int excepts)
+{
+ fpu_control_t fpscr, new_fpscr;
+
+ /* Fail if a VFP unit isn't present unless nothing needs to be done. */
+ if (!ARM_HAVE_VFP)
+ return (excepts != 0);
+
+ _FPU_GETCW (fpscr);
+ new_fpscr = fpscr | (excepts & FE_ALL_EXCEPT);
+ if (new_fpscr != fpscr)
+ _FPU_SETCW (new_fpscr);
+
+ return 0;
+}
--
Joseph S. Myers
joseph@codesourcery.com