1 files changed, 85 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/sparc/bits/fenv.h b/libc/sysdeps/linux/sparc/bits/fenv.h
new file mode 100644
index 000000000..d30fe22c4
--- /dev/null
+++ b/libc/sysdeps/linux/sparc/bits/fenv.h
@@ -0,0 +1,85 @@
+/* Copyright (C) 1997, 1998, 1999 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.  */
+
+#ifndef _FENV_H
+# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+#endif
+
+#include <bits/wordsize.h>
+
+
+/* Define bits representing the exception.  We use the bit positions
+   of the appropriate accrued exception bits from the FSR.  */
+enum
+  {
+    FE_INVALID = 	(1 << 9),
+#define FE_INVALID	FE_INVALID
+    FE_OVERFLOW = 	(1 << 8),
+#define FE_OVERFLOW	FE_OVERFLOW
+    FE_UNDERFLOW = 	(1 << 7),
+#define FE_UNDERFLOW	FE_UNDERFLOW
+    FE_DIVBYZERO = 	(1 << 6),
+#define FE_DIVBYZERO	FE_DIVBYZERO
+    FE_INEXACT = 	(1 << 5)
+#define FE_INEXACT	FE_INEXACT
+  };
+
+#define FE_ALL_EXCEPT \
+	(FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
+
+/* The Sparc FPU supports all of the four defined rounding modes.  We
+   use again the bit positions in the FPU control word as the values
+   for the appropriate macros.  */
+enum
+  {
+    FE_TONEAREST = 	(0U << 30),
+#define FE_TONEAREST	FE_TONEAREST
+    FE_TOWARDZERO = 	(1U << 30),
+#define FE_TOWARDZERO	FE_TOWARDZERO
+    FE_UPWARD = 	(2U << 30),
+#define FE_UPWARD	FE_UPWARD
+    FE_DOWNWARD = 	(3U << 30)
+#define FE_DOWNWARD	FE_DOWNWARD
+  };
+
+#define __FE_ROUND_MASK	(3U << 30)
+
+
+/* Type representing exception flags.  */
+typedef unsigned long int fexcept_t;
+
+
+/* Type representing floating-point environment.  */
+typedef unsigned long int fenv_t;
+
+/* If the default argument is used we use this value.  */
+#define FE_DFL_ENV	((fenv_t *) -1)
+
+#ifdef __USE_GNU
+/* Floating-point environment where none of the exception is masked.  */
+# define FE_NOMASK_ENV	((fenv_t *) -2)
+#endif
+
+/* For internal use only: access the fp state register.  */
+#if __WORDSIZE == 64
+# define __fenv_stfsr(X)   __asm__ ("stx %%fsr,%0" : "=m" (X))
+# define __fenv_ldfsr(X)   __asm__ __volatile__ ("ldx %0,%%fsr" : : "m" (X))
+#else
+# define __fenv_stfsr(X)   __asm__ ("st %%fsr,%0" : "=m" (X))
+# define __fenv_ldfsr(X)   __asm__ __volatile__ ("ld %0,%%fsr" : : "m" (X))
+#endif