Merge glibc-ports into ports/ directory. glibc-2.16.90 glibc-2.16-ports-merge

1 files changed, 50 insertions, 0 deletions

diff --git a/ports/sysdeps/arm/feenablxcpt.c b/ports/sysdeps/arm/feenablxcpt.c
new file mode 100644
index 0000000000..3b2b934f57
--- /dev/null
+++ b/ports/sysdeps/arm/feenablxcpt.c
@@ -0,0 +1,50 @@
+/* Enable floating-point exceptions.
+   Copyright (C) 2001, 2005 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Philip Blundell <philb@gnu.org>, 2001.
+
+   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 <unistd.h>
+#include <ldsodefs.h>
+#include <dl-procinfo.h>
+#include <sysdep.h>
+
+int
+feenableexcept (int excepts)
+{
+  if (GLRO (dl_hwcap) & HWCAP_ARM_VFP)
+    {
+      unsigned long int new_exc, old_exc;
+
+      _FPU_GETCW(new_exc);
+
+      old_exc = (new_exc >> FE_EXCEPT_SHIFT) & FE_ALL_EXCEPT;
+
+      excepts &= FE_ALL_EXCEPT;
+
+      new_exc |= (excepts << FE_EXCEPT_SHIFT);
+
+      _FPU_SETCW(new_exc);
+
+      return old_exc;
+    }
+
+  /* Unsupported, so return -1 for failure.  */
+  return -1;
+}