Move m68k from ports to libc

1 files changed, 50 insertions, 0 deletions

diff --git a/sysdeps/m68k/fpu/fclrexcpt.c b/sysdeps/m68k/fpu/fclrexcpt.c
new file mode 100644
index 0000000000..16836f8f5c
--- /dev/null
+++ b/sysdeps/m68k/fpu/fclrexcpt.c
@@ -0,0 +1,50 @@
+/* Clear given exceptions in current floating-point environment.
+   Copyright (C) 1997-2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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>
+
+int
+__feclearexcept (int excepts)
+{
+  fexcept_t fpsr;
+
+  /* Mask out unsupported bits/exceptions.  */
+  excepts &= FE_ALL_EXCEPT;
+
+  /* Fetch the fpu status register.  */
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
+
+  /* Clear the relevant bits.  */
+  fpsr &= ~excepts;
+
+  /* Put the new data in effect.  */
+  __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr));
+
+  /* Success.  */
+  return 0;
+}
+
+#include <shlib-compat.h>
+#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
+strong_alias (__feclearexcept, __old_feclearexcept)
+compat_symbol (libm, __old_feclearexcept, feclearexcept, GLIBC_2_1);
+#endif
+
+libm_hidden_ver (__feclearexcept, feclearexcept)
+versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2);