Make strtod respect the rounding mode (bug 14518).

2 files changed, 77 insertions, 0 deletions

diff --git a/ports/sysdeps/arm/get-rounding-mode.h b/ports/sysdeps/arm/get-rounding-mode.h
new file mode 100644
index 0000000000..a614fe43f8
--- /dev/null
+++ b/ports/sysdeps/arm/get-rounding-mode.h
@@ -0,0 +1,42 @@
+/* Determine floating-point rounding mode within libc.  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_GET_ROUNDING_MODE_H
+#define _ARM_GET_ROUNDING_MODE_H	1
+
+#include <arm-features.h>
+#include <fenv.h>
+#include <fpu_control.h>
+
+/* Return the floating-point rounding mode.  */
+
+static inline int
+get_rounding_mode (void)
+{
+  if (ARM_HAVE_VFP)
+    {
+      fpu_control_t fc;
+
+      _FPU_GETCW (fc);
+      return fc & FE_TOWARDZERO;
+    }
+  else
+    return FE_TONEAREST;
+}
+
+#endif /* get-rounding-mode.h */
diff --git a/ports/sysdeps/powerpc/nofpu/get-rounding-mode.h b/ports/sysdeps/powerpc/nofpu/get-rounding-mode.h
new file mode 100644
index 0000000000..14be20f7b6
--- /dev/null
+++ b/ports/sysdeps/powerpc/nofpu/get-rounding-mode.h
@@ -0,0 +1,35 @@
+/* Determine floating-point rounding mode within libc.  PowerPC
+   soft-float 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 _POWERPC_NOFPU_GET_ROUNDING_MODE_H
+#define _POWERPC_NOFPU_GET_ROUNDING_MODE_H	1
+
+#include <fenv.h>
+
+#include "soft-supp.h"
+
+/* Return the floating-point rounding mode.  */
+
+static inline int
+get_rounding_mode (void)
+{
+  return __sim_round_mode;
+}
+
+#endif /* get-rounding-mode.h */