1 files changed, 37 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/setfpucw.c b/sysdeps/unix/sysv/linux/setfpucw.c
new file mode 100644
index 0000000000..47a021c587
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/setfpucw.c
@@ -0,0 +1,37 @@
+/* Set the FPU control word.
+Copyright (C) 1996 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include "fpu_control.h"
+
+void
+__setfpucw (fpu_control_t set)
+{
+  fpu_control_t cw;
+
+  /* Fetch the current control word.  */
+  _FPU_GETCW (cw);
+
+  /* Preserve the reserved bits, and set the rest as the user
+     specified (or the default, if the user gave zero).  */
+  _FPU_SETCW ((cw & _FPU_RESERVED) | ((set ?: _FPU_DEFAULT) & ~_FPU_RESERVED));
+}
+
+/* The startup code in init-first.c calls __setfpucw (__fpu_control).  */
+
+fpu_control_t __fpu_control;