1 files changed, 98 insertions, 0 deletions
diff --git a/libgfortran/config/fpu-generic.h b/libgfortran/config/fpu-generic.h
new file mode 100644
index 0000000000..13727420e9
--- /dev/null
+++ b/libgfortran/config/fpu-generic.h
@@ -0,0 +1,98 @@
+/* Fallback FPU-related code (for systems not otherwise supported).
+   Copyright (C) 2005-2017 Free Software Foundation, Inc.
+   Contributed by Francois-Xavier Coudert <coudert@clipper.ens.fr>
+
+This file is part of the GNU Fortran runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran 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 General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+
+/* Fallback FPU-related code for systems not otherwise supported. This
+   is mainly telling the user that we will not be able to do what he
+   requested.  */
+
+void
+set_fpu (void)
+{
+  if (options.fpe & GFC_FPE_INVALID)
+    estr_write ("Fortran runtime warning: IEEE 'invalid operation' "
+	        "exception not supported.\n");
+  if (options.fpe & GFC_FPE_DENORMAL)
+    estr_write ("Fortran runtime warning: Floating point 'denormal operand' "
+	        "exception not supported.\n");
+  if (options.fpe & GFC_FPE_ZERO)
+    estr_write ("Fortran runtime warning: IEEE 'division by zero' "
+	        "exception not supported.\n");
+  if (options.fpe & GFC_FPE_OVERFLOW)
+    estr_write ("Fortran runtime warning: IEEE 'overflow' "
+	        "exception not supported.\n");
+  if (options.fpe & GFC_FPE_UNDERFLOW)
+    estr_write ("Fortran runtime warning: IEEE 'underflow' "
+	        "exception not supported.\n");
+  if (options.fpe & GFC_FPE_INEXACT)
+    estr_write ("Fortran runtime warning: IEEE 'inexact' "
+	        "exception not supported.\n");
+}
+
+void
+set_fpu_trap_exceptions (int trap __attribute__((unused)),
+			 int notrap __attribute__((unused)))
+{
+}
+
+int
+get_fpu_except_flags (void)
+{
+  return 0;
+}
+
+
+int
+get_fpu_rounding_mode (void)
+{   
+  return 0;
+}               
+
+
+void
+set_fpu_rounding_mode (int round __attribute__((unused)))
+{
+}
+
+
+int
+support_fpu_underflow_control (int kind __attribute__((unused)))
+{
+  return 0;
+}
+
+
+int
+get_fpu_underflow_mode (void)
+{
+  return 0;
+}
+
+
+void
+set_fpu_underflow_mode (int gradual __attribute__((unused)))
+{
+}
+