1 files changed, 56 insertions, 0 deletions
diff --git a/ports/sysdeps/am33/fpu/fsetexcptflg.c b/ports/sysdeps/am33/fpu/fsetexcptflg.c
new file mode 100644
index 0000000000..a5bde40200
--- /dev/null
+++ b/ports/sysdeps/am33/fpu/fsetexcptflg.c
@@ -0,0 +1,56 @@
+/* Set floating-point environment exception handling.
+   Copyright (C) 1998, 1999, 2000, 2002, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Alexandre Oliva <aoliva@redhat.com>
+   based on corresponding file in the MIPS port.
+
+   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 <shlib-compat.h>
+
+int
+__fesetexceptflag (const fexcept_t *flagp, int excepts)
+{
+  fpu_control_t cw, temp;
+
+  /* Get the current exceptions.  */
+  _FPU_GETCW (cw);
+
+  /* Make sure the flags we want restored are legal.  */
+  excepts &= FE_ALL_EXCEPT;
+  temp = *flagp & excepts;
+
+  /* If EF bits are clear and the user requests them to be set,
+     we have to fail, because there's no way to do it.  */
+  if (~(cw & excepts) & temp)
+    return -1;
+
+  /* We clear EF bits by storing a 1 in them, so flip the
+     FE_ALL_EXCEPT bits.  */
+  temp = (~temp & FE_ALL_EXCEPT);
+
+  /* Now clear the bits called for, and copy them in from flagp. Note that
+     we ignore all non-flag bits from *flagp, so they don't matter.  */
+  cw = (cw & ~FE_ALL_EXCEPT) | temp;
+
+  _FPU_SETFCW (cw);
+
+  /* Success.  */
+  return 0;
+}
+
+versioned_symbol (libm, __fesetexceptflag, fesetexceptflag, GLIBC_2_2);