Module Name: src
Committed By: scole
Date: Thu Feb 23 02:03:27 UTC 2017
Modified Files:
src/sys/arch/ia64/include: Makefile ieeefp.h
Added Files:
src/sys/arch/ia64/include: fenv.h
Log Message:
Add fenv.h for ia64, imported from FreeBSD, compile tested only.
To generate a diff of this commit:
cvs rdiff -u -r1.7 -r1.8 src/sys/arch/ia64/include/Makefile
cvs rdiff -u -r0 -r1.1 src/sys/arch/ia64/include/fenv.h
cvs rdiff -u -r1.1 -r1.2 src/sys/arch/ia64/include/ieeefp.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/ia64/include/Makefile
diff -u src/sys/arch/ia64/include/Makefile:1.7 src/sys/arch/ia64/include/Makefile:1.8
--- src/sys/arch/ia64/include/Makefile:1.7 Fri Aug 5 16:56:43 2016
+++ src/sys/arch/ia64/include/Makefile Thu Feb 23 02:03:27 2017
@@ -1,11 +1,11 @@
-# $NetBSD: Makefile,v 1.7 2016/08/05 16:56:43 scole Exp $
+# $NetBSD: Makefile,v 1.8 2017/02/23 02:03:27 scole Exp $
INCSDIR= /usr/include/ia64
INCS= _regset.h acpi_machdep.h ansi.h \
aout_machdep.h asm.h atomic.h bootinfo.h bswap.h cdefs.h \
- cpu.h cpufunc.h dig64.h disklabel.h efi.h \
- elf_machdep.h endian.h endian_machdep.h float.h fpu.h frame.h \
+ cpu.h cpufunc.h dig64.h disklabel.h efi.h elf_machdep.h \
+ endian.h endian_machdep.h fenv.h float.h fpu.h frame.h \
ia64_cpu.h ieee.h ieeefp.h int_const.h int_fmtio.h int_limits.h \
int_mwgwtypes.h int_types.h intr.h limits.h \
loadfile_machdep.h lock.h math.h mca_machdep.h mcontext.h md_var.h \
Index: src/sys/arch/ia64/include/ieeefp.h
diff -u src/sys/arch/ia64/include/ieeefp.h:1.1 src/sys/arch/ia64/include/ieeefp.h:1.2
--- src/sys/arch/ia64/include/ieeefp.h:1.1 Wed Dec 26 19:43:10 2012
+++ src/sys/arch/ia64/include/ieeefp.h Thu Feb 23 02:03:27 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: ieeefp.h,v 1.1 2012/12/26 19:43:10 martin Exp $ */
+/* $NetBSD: ieeefp.h,v 1.2 2017/02/23 02:03:27 scole Exp $ */
/*
* Written by J.T. Conklin, Apr 28, 1995
@@ -12,26 +12,19 @@
#if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE)
-typedef int fenv_t;
-typedef int fexcept_t;
-
-#define FE_INVALID 0x01 /* invalid operation exception */
-#define FE_DIVBYZERO 0x02 /* divide-by-zero exception */
-#define FE_OVERFLOW 0x04 /* overflow exception */
-#define FE_UNDERFLOW 0x08 /* underflow exception */
-#define FE_INEXACT 0x10 /* imprecise (loss of precision; "inexact") */
-#define FE_IOVERFLOW 0x20 /* integer overflow */
-
-#define FE_ALL_EXCEPT 0x3f
+#include <ia64/fenv.h>
/*
* These bits match the fpcr as well as bits 12:11
* in fp operate instructions
*/
+/* XXX remove since fenv.h now contains (but with different values)? */
+#if 0
#define FE_TOWARDZERO 0 /* round to zero (truncate) */
#define FE_DOWNWARD 1 /* round toward negative infinity */
#define FE_TONEAREST 2 /* round to nearest representable number */
#define FE_UPWARD 3 /* round toward positive infinity */
+#endif
#if !defined(_ISOC99_SOURCE)
Added files:
Index: src/sys/arch/ia64/include/fenv.h
diff -u /dev/null src/sys/arch/ia64/include/fenv.h:1.1
--- /dev/null Thu Feb 23 02:03:27 2017
+++ src/sys/arch/ia64/include/fenv.h Thu Feb 23 02:03:27 2017
@@ -0,0 +1,248 @@
+/*-
+ * Copyright (c) 2004-2005 David Schultz <[email protected]>
+ * 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: releng/10.1/lib/msun/ia64/fenv.h 226218 2011-10-10 15:43:09Z das $
+ */
+
+#ifndef _IA64_FENV_H_
+#define _IA64_FENV_H_
+
+#include <sys/stdint.h>
+
+#ifndef __fenv_static
+#define __fenv_static static
+#endif
+
+typedef __uint64_t fenv_t;
+typedef __uint16_t fexcept_t;
+
+/* Exception flags */
+#define FE_INVALID 0x01
+#define FE_DENORMAL 0x02
+#define FE_DIVBYZERO 0x04
+#define FE_OVERFLOW 0x08
+#define FE_UNDERFLOW 0x10
+#define FE_INEXACT 0x20
+#define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_DENORMAL | FE_INEXACT | \
+ FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW)
+
+/* Rounding modes */
+#define FE_TONEAREST 0x0000
+#define FE_DOWNWARD 0x0400
+#define FE_UPWARD 0x0800
+#define FE_TOWARDZERO 0x0c00
+#define _ROUND_MASK (FE_TONEAREST | FE_DOWNWARD | \
+ FE_UPWARD | FE_TOWARDZERO)
+
+__BEGIN_DECLS
+
+/* Default floating-point environment */
+extern const fenv_t __fe_dfl_env;
+#define FE_DFL_ENV (&__fe_dfl_env)
+
+#define _FPUSW_SHIFT 13
+
+#define __stfpsr(__r) __asm __volatile("mov %0=ar.fpsr" : "=r" (*(__r)))
+#define __ldfpsr(__r) __asm __volatile("mov ar.fpsr=%0;;" : : "r" (__r))
+
+__fenv_static inline int
+feclearexcept(int __excepts)
+{
+ fenv_t __fpsr;
+
+ __stfpsr(&__fpsr);
+ __fpsr &= ~((fenv_t)__excepts << _FPUSW_SHIFT);
+ __ldfpsr(__fpsr);
+ return (0);
+}
+
+__fenv_static inline int
+fegetexceptflag(fexcept_t *__flagp, int __excepts)
+{
+ fenv_t __fpsr;
+
+ __stfpsr(&__fpsr);
+ *__flagp = (fexcept_t)(__fpsr >> _FPUSW_SHIFT) & __excepts;
+ return (0);
+}
+
+__fenv_static inline int
+fesetexceptflag(const fexcept_t *__flagp, int __excepts)
+{
+ fenv_t __fpsr;
+
+ __stfpsr(&__fpsr);
+ __fpsr &= ~((fenv_t)__excepts << _FPUSW_SHIFT);
+ __fpsr |= (fenv_t)(__excepts & *__flagp) << _FPUSW_SHIFT;
+ __ldfpsr(__fpsr);
+ return (0);
+}
+
+/*
+ * It is worthwhile to use the inline version of this function iff it
+ * is called with arguments that are compile-time constants (due to
+ * dead code elimination). Unfortunately, gcc isn't smart enough to
+ * figure this out automatically, and there's no way to tell it.
+ * We assume that constant arguments will be the common case.
+ */
+__fenv_static inline int
+feraiseexcept(int __excepts)
+{
+ volatile double d;
+
+ /*
+ * With a compiler that supports the FENV_ACCESS pragma
+ * properly, simple expressions like '0.0 / 0.0' should
+ * be sufficient to generate traps. Unfortunately, we
+ * need to bring a volatile variable into the equation
+ * to prevent incorrect optimizations.
+ */
+ if (__excepts & FE_INVALID) {
+ d = 0.0;
+ d = 0.0 / d;
+ }
+ if (__excepts & FE_DIVBYZERO) {
+ d = 0.0;
+ d = 1.0 / d;
+ }
+ if (__excepts & FE_OVERFLOW) {
+ d = 0x1.ffp1023;
+ d *= 2.0;
+ }
+ if (__excepts & FE_UNDERFLOW) {
+ d = 0x1p-1022;
+ d /= 0x1p1023;
+ }
+ if (__excepts & FE_INEXACT) {
+ d = 0x1p-1022;
+ d += 1.0;
+ }
+ return (0);
+}
+
+__fenv_static inline int
+fetestexcept(int __excepts)
+{
+ fenv_t __fpsr;
+
+ __stfpsr(&__fpsr);
+ return ((__fpsr >> _FPUSW_SHIFT) & __excepts);
+}
+
+
+__fenv_static inline int
+fegetround(void)
+{
+ fenv_t __fpsr;
+
+ __stfpsr(&__fpsr);
+ return (__fpsr & _ROUND_MASK);
+}
+
+__fenv_static inline int
+fesetround(int __round)
+{
+ fenv_t __fpsr;
+
+ if (__round & ~_ROUND_MASK)
+ return (-1);
+ __stfpsr(&__fpsr);
+ __fpsr &= ~_ROUND_MASK;
+ __fpsr |= __round;
+ __ldfpsr(__fpsr);
+ return (0);
+}
+
+__fenv_static inline int
+fegetenv(fenv_t *__envp)
+{
+
+ __stfpsr(__envp);
+ return (0);
+}
+
+__fenv_static inline int
+feholdexcept(fenv_t *__envp)
+{
+ fenv_t __fpsr;
+
+ __stfpsr(&__fpsr);
+ *__envp = __fpsr;
+ __fpsr &= ~((fenv_t)FE_ALL_EXCEPT << _FPUSW_SHIFT);
+ __fpsr |= FE_ALL_EXCEPT;
+ __ldfpsr(__fpsr);
+ return (0);
+}
+
+__fenv_static inline int
+fesetenv(const fenv_t *__envp)
+{
+
+ __ldfpsr(*__envp);
+ return (0);
+}
+
+int feupdateenv(const fenv_t *__envp);
+
+#if defined(_NETBSD_SOURCE) || defined(_GNU_SOURCE)
+
+/* We currently provide no external definitions of the functions below. */
+
+static inline int
+feenableexcept(int __mask)
+{
+ fenv_t __newfpsr, __oldfpsr;
+
+ __stfpsr(&__oldfpsr);
+ __newfpsr = __oldfpsr & ~(__mask & FE_ALL_EXCEPT);
+ __ldfpsr(__newfpsr);
+ return (~__oldfpsr & FE_ALL_EXCEPT);
+}
+
+static inline int
+fedisableexcept(int __mask)
+{
+ fenv_t __newfpsr, __oldfpsr;
+
+ __stfpsr(&__oldfpsr);
+ __newfpsr = __oldfpsr | (__mask & FE_ALL_EXCEPT);
+ __ldfpsr(__newfpsr);
+ return (~__oldfpsr & FE_ALL_EXCEPT);
+}
+
+static inline int
+fegetexcept(void)
+{
+ fenv_t __fpsr;
+
+ __stfpsr(&__fpsr);
+ return (~__fpsr & FE_ALL_EXCEPT);
+}
+
+#endif /* _NETBSD_SOURCE || _GNU_SOURCE */
+
+__END_DECLS
+
+#endif /* !_IA64_FENV_H_ */
