Merge glibc-ports into ports/ directory.glibc-2.16.90glibc-2.16-ports-merge

1 files changed, 73 insertions, 0 deletions

diff --git a/ports/sysdeps/arm/bits/fenv.h b/ports/sysdeps/arm/bits/fenv.h
new file mode 100644
index 0000000000..006ccf5288
--- /dev/null
+++ b/ports/sysdeps/arm/bits/fenv.h
@@ -0,0 +1,73 @@
+/* Copyright (C) 2004, 2005, 2012 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 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/>.  */
+
+#ifndef _FENV_H
+# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+#endif
+
+/* Define bits representing exceptions in the FPU status word.  */
+enum
+  {
+    FE_INVALID = 1,
+#define FE_INVALID FE_INVALID
+    FE_DIVBYZERO = 2,
+#define FE_DIVBYZERO FE_DIVBYZERO
+    FE_OVERFLOW = 4,
+#define FE_OVERFLOW FE_OVERFLOW
+    FE_UNDERFLOW = 8,
+#define FE_UNDERFLOW FE_UNDERFLOW
+    FE_INEXACT = 16,
+#define FE_INEXACT FE_INEXACT
+  };
+
+/* Amount to shift by to convert an exception to a mask bit.  */
+#define FE_EXCEPT_SHIFT	8
+
+/* All supported exceptions.  */
+#define FE_ALL_EXCEPT	\
+	(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW | FE_INEXACT)
+
+/* VFP supports all of the four defined rounding modes.  */
+enum
+  {
+    FE_TONEAREST = 0,
+#define FE_TONEAREST FE_TONEAREST
+    FE_UPWARD = 0x400000,
+#define FE_UPWARD FE_UPWARD
+    FE_DOWNWARD = 0x800000,
+#define FE_DOWNWARD FE_DOWNWARD
+    FE_TOWARDZERO = 0xc00000
+#define FE_TOWARDZERO FE_TOWARDZERO
+  };
+
+/* Type representing exception flags. */
+typedef unsigned int fexcept_t;
+
+/* Type representing floating-point environment.  */
+typedef struct
+  {
+    unsigned int __cw;
+  }
+fenv_t;
+
+/* If the default argument is used we use this value.  */
+#define FE_DFL_ENV	((fenv_t *) -1l)
+
+#ifdef __USE_GNU
+/* Floating-point environment where none of the exceptions are masked.  */
+# define FE_NOMASK_ENV  ((const fenv_t *) -2)
+#endif