Using cdefs-compat.h and stdint.h instead <sys/types.h>

fenv-softfloat.h file added
SOFTFLOAT code parts are not tested.

include/openlibm_fenv_mips.h

@@ -29,17 +29,18 @@
 #ifndef	_FENV_H_
 #define	_FENV_H_
 
-#include <sys/types.h>
+#include <stdint.h>
+#include "cdefs-compat.h"
 
 #ifndef	__fenv_static
 #define	__fenv_static	static
 #endif
 
-typedef	__uint32_t	fenv_t;
-typedef	__uint32_t	fexcept_t;
+typedef	uint32_t	fenv_t;
+typedef	uint32_t	fexcept_t;
 
 /* Exception flags */
-#ifdef SOFTFLOAT
+#ifdef __mips_soft_float
 #define	_FPUSW_SHIFT	16
 #define	FE_INVALID	0x0001
 #define	FE_DIVBYZERO	0x0002
@@ -74,12 +75,12 @@ extern const fenv_t	__fe_dfl_env;
 #define	_ENABLE_SHIFT	5
 #define	_ENABLE_MASK	(FE_ALL_EXCEPT << _ENABLE_SHIFT)
 
-#ifndef	SOFTFLOAT
+#ifndef __mips_soft_float
 #define	__cfc1(__fcsr)	__asm __volatile("cfc1 %0, $31" : "=r" (__fcsr))
 #define	__ctc1(__fcsr)	__asm __volatile("ctc1 %0, $31" :: "r" (__fcsr))
 #endif
 
-#ifdef SOFTFLOAT
+#ifdef __mips_soft_float
 int feclearexcept(int __excepts);
 int fegetexceptflag(fexcept_t *__flagp, int __excepts);
 int fesetexceptflag(const fexcept_t *__flagp, int __excepts);
@@ -223,13 +224,13 @@ feupdateenv(const fenv_t *__envp)
 
 	return (0);
 }
-#endif /* !SOFTFLOAT */
+#endif /* !__mips_soft_float */
 
 #if __BSD_VISIBLE
 
 /* We currently provide no external definitions of the functions below. */
 
-#ifdef SOFTFLOAT
+#ifdef __mips_soft_float
 int feenableexcept(int __mask);
 int fedisableexcept(int __mask);
 int fegetexcept(void);
@@ -268,7 +269,7 @@ fegetexcept(void)
 	return ((fcsr & _ENABLE_MASK) >> _ENABLE_SHIFT);
 }
 
-#endif /* !SOFTFLOAT */
+#endif /* !__mips_soft_float */
 
 #endif /* __BSD_VISIBLE */
 

mips/fenv-softfloat.h

@@ -0,0 +1,184 @@
+/*-
+ * Copyright (c) 2004-2011 David Schultz <das@FreeBSD.ORG>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef	_FENV_H_
+#error "This file is meant to be included only by <fenv.h>."
+#endif
+
+/*
+ * This file implements the functionality of <fenv.h> on platforms that
+ * lack an FPU and use softfloat in libc for floating point.  To use it,
+ * you must write an <fenv.h> that provides the following:
+ *
+ *   - a typedef for fenv_t, which may be an integer or struct type
+ *   - a typedef for fexcept_t (XXX This file assumes fexcept_t is a
+ *     simple integer type containing the exception mask.)
+ *   - definitions of FE_* constants for the five exceptions and four
+ *     rounding modes in IEEE 754, as described in fenv(3)
+ *   - a definition, and the corresponding external symbol, for FE_DFL_ENV
+ *   - a macro __set_env(env, flags, mask, rnd), which sets the given fenv_t
+ *     from the exception flags, mask, and rounding mode
+ *   - macros __env_flags(env), __env_mask(env), and __env_round(env), which
+ *     extract fields from an fenv_t
+ *   - a definition of __fenv_static
+ *
+ * If the architecture supports an optional FPU, it's recommended that you
+ * define fenv_t and fexcept_t to match the hardware ABI.  Otherwise, it
+ * doesn't matter how you define them.
+ */
+
+extern int __softfloat_float_exception_flags;
+extern int __softfloat_float_exception_mask;
+extern int __softfloat_float_rounding_mode;
+void __softfloat_float_raise(int);
+
+__fenv_static inline int
+feclearexcept(int __excepts)
+{
+
+	__softfloat_float_exception_flags &= ~__excepts;
+	return (0);
+}
+
+__fenv_static inline int
+fegetexceptflag(fexcept_t *__flagp, int __excepts)
+{
+
+	*__flagp = __softfloat_float_exception_flags & __excepts;
+	return (0);
+}
+
+__fenv_static inline int
+fesetexceptflag(const fexcept_t *__flagp, int __excepts)
+{
+
+	__softfloat_float_exception_flags &= ~__excepts;
+	__softfloat_float_exception_flags |= *__flagp & __excepts;
+	return (0);
+}
+
+__fenv_static inline int
+feraiseexcept(int __excepts)
+{
+
+	__softfloat_float_raise(__excepts);
+	return (0);
+}
+
+__fenv_static inline int
+fetestexcept(int __excepts)
+{
+
+	return (__softfloat_float_exception_flags & __excepts);
+}
+
+__fenv_static inline int
+fegetround(void)
+{
+
+	return (__softfloat_float_rounding_mode);
+}
+
+__fenv_static inline int
+fesetround(int __round)
+{
+
+	__softfloat_float_rounding_mode = __round;
+	return (0);
+}
+
+__fenv_static inline int
+fegetenv(fenv_t *__envp)
+{
+
+	__set_env(*__envp, __softfloat_float_exception_flags,
+	    __softfloat_float_exception_mask, __softfloat_float_rounding_mode);
+	return (0);
+}
+
+__fenv_static inline int
+feholdexcept(fenv_t *__envp)
+{
+	fenv_t __env;
+
+	fegetenv(__envp);
+	__softfloat_float_exception_flags = 0;
+	__softfloat_float_exception_mask = 0;
+	return (0);
+}
+
+__fenv_static inline int
+fesetenv(const fenv_t *__envp)
+{
+
+	__softfloat_float_exception_flags = __env_flags(*__envp);
+	__softfloat_float_exception_mask = __env_mask(*__envp);
+	__softfloat_float_rounding_mode = __env_round(*__envp);
+	return (0);
+}
+
+__fenv_static inline int
+feupdateenv(const fenv_t *__envp)
+{
+	int __oflags = __softfloat_float_exception_flags;
+
+	fesetenv(__envp);
+	feraiseexcept(__oflags);
+	return (0);
+}
+
+#if __BSD_VISIBLE
+
+/* We currently provide no external definitions of the functions below. */
+
+__fenv_static inline int
+feenableexcept(int __mask)
+{
+	int __omask = __softfloat_float_exception_mask;
+
+	__softfloat_float_exception_mask |= __mask;
+	return (__omask);
+}
+
+__fenv_static inline int
+fedisableexcept(int __mask)
+{
+	int __omask = __softfloat_float_exception_mask;
+
+	__softfloat_float_exception_mask &= ~__mask;
+	return (__omask);
+}
+
+__fenv_static inline int
+fegetexcept(void)
+{
+
+	return (__softfloat_float_exception_mask);
+}
+
+#endif /* __BSD_VISIBLE */

mips/fenv.c

@@ -39,7 +39,7 @@
  */
 const fenv_t __fe_dfl_env = 0;
 
-#ifdef	SOFTFLOAT
+#ifdef __mips_soft_float
 #define __set_env(env, flags, mask, rnd) env = ((flags)                 \
                                                 | (mask)<<_FPUSW_SHIFT  \
                                                 | (rnd) << 24)