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

1 files changed, 56 insertions, 0 deletions

diff --git a/ports/sysdeps/arm/fesetround.c b/ports/sysdeps/arm/fesetround.c
new file mode 100644
index 0000000000..997bd98f5a
--- /dev/null
+++ b/ports/sysdeps/arm/fesetround.c
@@ -0,0 +1,56 @@
+/* Set current rounding direction.
+   Copyright (C) 2004, 2005 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 <unistd.h>
+#include <ldsodefs.h>
+#include <dl-procinfo.h>
+#include <sysdep.h>
+
+int
+fesetround (int round)
+{
+  if (GLRO (dl_hwcap) & HWCAP_ARM_VFP)
+    {
+      fpu_control_t temp;
+
+      switch (round)
+	{
+	case FE_TONEAREST:
+	case FE_UPWARD:
+	case FE_DOWNWARD:
+	case FE_TOWARDZERO:
+	  _FPU_GETCW (temp);
+	  temp = (temp & ~FE_TOWARDZERO) | round;
+	  _FPU_SETCW (temp);
+	  return 0;
+	default:
+	  return 1;
+	}
+    }
+  else if (round == FE_TONEAREST)
+    /* This is the only supported rounding mode for soft-fp.  */
+    return 0;
+
+  /* Unsupported, so fail.  */
+  return 1;
+}
+
+libm_hidden_def (fesetround)