[PATCH] hard float support for PowerPC taken from FreeBSD
Joel Sherrill
joel at rtems.org
Tue Jun 2 13:04:47 UTC 2020
This looks ready to submit to newlib for review and incorporation.
Good work.
--joel
On Fri, May 29, 2020 at 6:08 PM Eshan dhawan <eshandhawan51 at gmail.com>
wrote:
> PowerPc Fenv support
>
> Signed-off-by: Eshan dhawan <eshandhawan51 at gmail.com>
> ---
> newlib/configure.host | 1 +
> newlib/libc/machine/powerpc/machine/fenv-fp.h | 198 ++++++++++++++++++
> newlib/libc/machine/powerpc/sys/fenv.h | 132 ++++++++++++
> newlib/libm/machine/configure.in | 1 +
> newlib/libm/machine/powerpc/Makefile.am | 20 ++
> newlib/libm/machine/powerpc/configure.in | 11 +
> newlib/libm/machine/powerpc/feclearexcept.c | 7 +
> newlib/libm/machine/powerpc/fegetenv.c | 7 +
> newlib/libm/machine/powerpc/fegetexceptflag.c | 7 +
> newlib/libm/machine/powerpc/fegetround.c | 7 +
> newlib/libm/machine/powerpc/feholdexcept.c | 7 +
> newlib/libm/machine/powerpc/fenv.c | 51 +++++
> newlib/libm/machine/powerpc/feraiseexcept.c | 7 +
> newlib/libm/machine/powerpc/fesetenv.c | 7 +
> newlib/libm/machine/powerpc/fesetexceptflag.c | 7 +
> newlib/libm/machine/powerpc/fesetround.c | 7 +
> newlib/libm/machine/powerpc/fetestexcept.c | 7 +
> newlib/libm/machine/powerpc/feupdateenv.c | 7 +
> 18 files changed, 491 insertions(+)
> create mode 100644 newlib/libc/machine/powerpc/machine/fenv-fp.h
> create mode 100644 newlib/libc/machine/powerpc/sys/fenv.h
> create mode 100644 newlib/libm/machine/powerpc/Makefile.am
> create mode 100644 newlib/libm/machine/powerpc/configure.in
> create mode 100644 newlib/libm/machine/powerpc/feclearexcept.c
> create mode 100644 newlib/libm/machine/powerpc/fegetenv.c
> create mode 100644 newlib/libm/machine/powerpc/fegetexceptflag.c
> create mode 100644 newlib/libm/machine/powerpc/fegetround.c
> create mode 100644 newlib/libm/machine/powerpc/feholdexcept.c
> create mode 100644 newlib/libm/machine/powerpc/fenv.c
> create mode 100644 newlib/libm/machine/powerpc/feraiseexcept.c
> create mode 100644 newlib/libm/machine/powerpc/fesetenv.c
> create mode 100644 newlib/libm/machine/powerpc/fesetexceptflag.c
> create mode 100644 newlib/libm/machine/powerpc/fesetround.c
> create mode 100644 newlib/libm/machine/powerpc/fetestexcept.c
> create mode 100644 newlib/libm/machine/powerpc/feupdateenv.c
>
> diff --git a/newlib/configure.host b/newlib/configure.host
> index a84c0c80a..9d2166f3d 100644
> --- a/newlib/configure.host
> +++ b/newlib/configure.host
> @@ -290,6 +290,7 @@ case "${host_cpu}" in
> ;;
> powerpc*)
> machine_dir=powerpc
> + libm_machine_dir=powerpc
> ;;
> pru*)
> newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED"
> diff --git a/newlib/libc/machine/powerpc/machine/fenv-fp.h
> b/newlib/libc/machine/powerpc/machine/fenv-fp.h
> new file mode 100644
> index 000000000..7cf20218e
> --- /dev/null
> +++ b/newlib/libc/machine/powerpc/machine/fenv-fp.h
> @@ -0,0 +1,198 @@
> +/*-
> + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
> + *
> + * Copyright (c) 2004-2005 David Schultz <das at 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.
> + *
> + * $FreeBSD$
> + */
> +
> +__fenv_static inline int
> +feclearexcept(int excepts)
> +{
> + union __fpscr __r;
> +
> + if (excepts & FE_INVALID)
> + excepts |= FE_ALL_INVALID;
> + __mffs(&__r);
> + __r.__bits.__reg &= ~excepts;
> + __mtfsf(__r);
> + return (0);
> +}
> +
> +
> +__fenv_static inline int
> +fegetexceptflag(fexcept_t *flagp, int excepts)
> +{
> + union __fpscr __r;
> +
> + __mffs(&__r);
> + *flagp = __r.__bits.__reg & excepts;
> + return (0);
> +}
> +
> +__fenv_static inline int
> +fesetexceptflag(const fexcept_t *flagp, int excepts)
> +{
> + union __fpscr __r;
> +
> + if (excepts & FE_INVALID)
> + excepts |= FE_ALL_EXCEPT;
> + __mffs(&__r);
> + __r.__bits.__reg &= ~excepts;
> + __r.__bits.__reg |= *flagp & excepts;
> + __mtfsf(__r);
> + return (0);
> +}
> +
> +__fenv_static inline int
> +feraiseexcept(int excepts)
> +{
> + union __fpscr __r;
> +
> + if (excepts & FE_INVALID)
> + excepts |= FE_VXSOFT;
> + __mffs(&__r);
> + __r.__bits.__reg |= excepts;
> + __mtfsf(__r);
> + return (0);
> +}
> +
> +__fenv_static inline int
> +fetestexcept(int excepts)
> +{
> + union __fpscr __r;
> +
> + __mffs(&__r);
> + return (__r.__bits.__reg & excepts);
> +}
> +
> +__fenv_static inline int
> +fegetround(void)
> +{
> + union __fpscr __r;
> +
> + __mffs(&__r);
> + return (__r.__bits.__reg & _ROUND_MASK);
> +}
> +
> +__fenv_static inline int
> +fesetround(int rounding_mode)
> +{
> + union __fpscr __r;
> +
> + if (rounding_mode & ~_ROUND_MASK)
> + return (-1);
> + __mffs(&__r);
> + __r.__bits.__reg &= ~_ROUND_MASK;
> + __r.__bits.__reg |= rounding_mode;
> + __mtfsf(__r);
> + return (0);
> +}
> +
> +__fenv_static inline int
> +fegetenv(fenv_t *envp)
> +{
> + union __fpscr __r;
> +
> + __mffs(&__r);
> + *envp = __r.__bits.__reg;
> + return (0);
> +}
> +
> +__fenv_static inline int
> +feholdexcept(fenv_t *envp)
> +{
> + union __fpscr __r;
> +
> + __mffs(&__r);
> + *envp = __r.__bits.__reg;
> + __r.__bits.__reg &= ~(FE_ALL_EXCEPT | _ENABLE_MASK);
> + __mtfsf(__r);
> + return (0);
> +}
> +
> +__fenv_static inline int
> +fesetenv(const fenv_t *envp)
> +{
> + union __fpscr __r;
> +
> + __r.__bits.__reg = *envp;
> + __mtfsf(__r);
> + return (0);
> +}
> +
> +__fenv_static inline int
> +feupdateenv(const fenv_t *envp)
> +{
> + union __fpscr __r;
> +
> + __mffs(&__r);
> + __r.__bits.__reg &= FE_ALL_EXCEPT;
> + __r.__bits.__reg |= *envp;
> + __mtfsf(__r);
> + return (0);
> +}
> +
> +#if __BSD_VISIBLE
> +
> +/* We currently provide no external definitions of the functions below. */
> +
> +static inline int
> +feenableexcept(int __mask)
> +{
> + union __fpscr __r;
> + fenv_t __oldmask;
> +
> + __mffs(&__r);
> + __oldmask = __r.__bits.__reg;
> + __r.__bits.__reg |= (__mask & FE_ALL_EXCEPT) >> _FPUSW_SHIFT;
> + __mtfsf(__r);
> + return ((__oldmask & _ENABLE_MASK) << _FPUSW_SHIFT);
> +}
> +
> +static inline int
> +fedisableexcept(int __mask)
> +{
> + union __fpscr __r;
> + fenv_t __oldmask;
> +
> + __mffs(&__r);
> + __oldmask = __r.__bits.__reg;
> + __r.__bits.__reg &= ~((__mask & FE_ALL_EXCEPT) >> _FPUSW_SHIFT);
> + __mtfsf(__r);
> + return ((__oldmask & _ENABLE_MASK) << _FPUSW_SHIFT);
> +}
> +
> +static inline int
> +fegetexcept(void)
> +{
> + union __fpscr __r;
> +
> + __mffs(&__r);
> + return ((__r.__bits.__reg & _ENABLE_MASK) << _FPUSW_SHIFT);
> +}
> +
> +#endif /* __BSD_VISIBLE */
> +
> diff --git a/newlib/libc/machine/powerpc/sys/fenv.h
> b/newlib/libc/machine/powerpc/sys/fenv.h
> new file mode 100644
> index 000000000..39f12bf5e
> --- /dev/null
> +++ b/newlib/libc/machine/powerpc/sys/fenv.h
> @@ -0,0 +1,132 @@
> +/*-
> + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
> + *
> + * Copyright (c) 2004-2005 David Schultz <das at 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 _SYS_FENV_H_
> +#define _SYS_FENV_H_
> +
> +#include <sys/_types.h>
> +#include <machine/endian.h>
> +
> +#ifndef __fenv_static
> +#define __fenv_static static
> +#endif
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +typedef int fenv_t;
> +typedef int fexcept_t;
> +
> +/* Exception flags */
> +#define FE_INEXACT 0x02000000
> +#define FE_DIVBYZERO 0x04000000
> +#define FE_UNDERFLOW 0x08000000
> +#define FE_OVERFLOW 0x10000000
> +#define FE_INVALID 0x20000000 /* all types of invalid FP
> ops */
> +
> +/*
> + * The PowerPC architecture has extra invalid flags that indicate the
> + * specific type of invalid operation occurred. These flags may be
> + * tested, set, and cleared---but not masked---separately. All of
> + * these bits are cleared when FE_INVALID is cleared, but only
> + * FE_VXSOFT is set when FE_INVALID is explicitly set in software.
> + */
> +#define FE_VXCVI 0x00000100 /* invalid integer convert
> */
> +#define FE_VXSQRT 0x00000200 /* square root of a
> negative */
> +#define FE_VXSOFT 0x00000400 /* software-requested
> exception */
> +#define FE_VXVC 0x00080000 /* ordered comparison
> involving NaN */
> +#define FE_VXIMZ 0x00100000 /* inf * 0 */
> +#define FE_VXZDZ 0x00200000 /* 0 / 0 */
> +#define FE_VXIDI 0x00400000 /* inf / inf */
> +#define FE_VXISI 0x00800000 /* inf - inf */
> +#define FE_VXSNAN 0x01000000 /* operation on a
> signalling NaN */
> +#define FE_ALL_INVALID (FE_VXCVI | FE_VXSQRT | FE_VXSOFT |
> FE_VXVC | \
> + FE_VXIMZ | FE_VXZDZ | FE_VXIDI | FE_VXISI | \
> + FE_VXSNAN | FE_INVALID)
> +#define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | \
> + FE_ALL_INVALID | FE_OVERFLOW | FE_UNDERFLOW)
> +
> +/* Rounding modes */
> +#define FE_TONEAREST 0x0000
> +#define FE_TOWARDZERO 0x0001
> +#define FE_UPWARD 0x0002
> +#define FE_DOWNWARD 0x0003
> +#define _ROUND_MASK (FE_TONEAREST | FE_DOWNWARD | \
> + FE_UPWARD | FE_TOWARDZERO)
> +
> +
> +
> +/* Default floating-point environment */
> +extern const fenv_t *_fe_dfl_env;
> +#define FE_DFL_ENV (_fe_dfl_env)
> +
> +/* We need to be able to map status flag positions to mask flag positions
> */
> +#define _FPUSW_SHIFT 22
> +#define _ENABLE_MASK ((FE_DIVBYZERO | FE_INEXACT | FE_INVALID |
> \
> + FE_OVERFLOW | FE_UNDERFLOW) >> _FPUSW_SHIFT)
> +
> +#ifndef _SOFT_FLOAT
> +#ifdef __SPE__
> +#define __mffs(__env) \
> + __asm __volatile("mfspr %0, 512" : "=r" ((__env)->__bits.__reg))
> +#define __mtfsf(__env) \
> + __asm __volatile("mtspr 512,%0;isync" :: "r"
> ((__env).__bits.__reg))
> +#else
> +#define __mffs(__env) \
> + __asm __volatile("mffs %0" : "=f" ((__env)->__d))
> +#define __mtfsf(__env) \
> + __asm __volatile("mtfsf 255,%0" :: "f" ((__env).__d))
> +#endif
> +#else
> +#define __mffs(__env)
> +#define __mtfsf(__env)
> +#endif
> +
> +union __fpscr {
> + double __d;
> + struct {
> +#if _BYTE_ORDER == _LITTLE_ENDIAN
> + fenv_t __reg;
> + __uint32_t __junk;
> +#else
> + __uint32_t __junk;
> + fenv_t __reg;
> +#endif
> + } __bits;
> +};
> +
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +
> +#endif /* !_SYS_FENV_H_ */
> diff --git a/newlib/libm/machine/configure.in b/newlib/libm/machine/
> configure.in
> index d4635214a..01d3d9f66 100644
> --- a/newlib/libm/machine/configure.in
> +++ b/newlib/libm/machine/configure.in
> @@ -33,6 +33,7 @@ if test -n "${libm_machine_dir}"; then
> spu) AC_CONFIG_SUBDIRS(spu) ;;
> riscv) AC_CONFIG_SUBDIRS(riscv) ;;
> x86_64) AC_CONFIG_SUBDIRS(x86_64) ;;
> + powerpc) AC_CONFIG_SUBDIRS(powerpc) ;;
> esac;
> if test "${use_libtool}" = "yes"; then
> machlib=${libm_machine_dir}/lib${libm_machine_dir}.${aext}
> diff --git a/newlib/libm/machine/powerpc/Makefile.am
> b/newlib/libm/machine/powerpc/Makefile.am
> new file mode 100644
> index 000000000..3d8dd250a
> --- /dev/null
> +++ b/newlib/libm/machine/powerpc/Makefile.am
> @@ -0,0 +1,20 @@
> +## Process this file with automake to generate Makefile.in
> +
> +INCLUDES = -I $(newlib_basedir)/../newlib/libm/common $(NEWLIB_CFLAGS) \
> + $(CROSS_CFLAGS) $(TARGET_CFLAGS)
> +
> +LIB_SOURCES = \
> + feclearexcept.c fegetenv.c fegetexceptflag.c \
> + fegetround.c feholdexcept.c fenv.c feraiseexcept.c fesetenv.c \
> + fesetexceptflag.c fesetround.c fetestexcept.c feupdateenv.c
> +
> +noinst_LIBRARIES = lib.a
> +lib_a_SOURCES = $(LIB_SOURCES)
> +lib_a_CFLAGS = $(AM_CFLAGS)
> +lib_a_CCASFLAGS = $(AM_CCASFLAGS)
> +noinst_DATA =
> +
> +include $(srcdir)/../../../Makefile.shared
> +
> +ACLOCAL_AMFLAGS = -I ../../.. -I ../../../..
> +CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host
> diff --git a/newlib/libm/machine/powerpc/configure.in
> b/newlib/libm/machine/powerpc/configure.in
> new file mode 100644
> index 000000000..7a22fa31c
> --- /dev/null
> +++ b/newlib/libm/machine/powerpc/configure.in
> @@ -0,0 +1,11 @@
> +
> +AC_PREREQ(2.59)
> +AC_INIT([newlib],[NEWLIB_VERSION])
> +AC_CONFIG_SRCDIR([Makefile.am])
> +
> +AC_CONFIG_AUX_DIR(../../../..)
> +
> +NEWLIB_CONFIGURE(../../..)
> +
> +AC_CONFIG_FILES([Makefile])
> +AC_OUTPUT
> diff --git a/newlib/libm/machine/powerpc/feclearexcept.c
> b/newlib/libm/machine/powerpc/feclearexcept.c
> new file mode 100644
> index 000000000..8cbee7771
> --- /dev/null
> +++ b/newlib/libm/machine/powerpc/feclearexcept.c
> @@ -0,0 +1,7 @@
> +/*
> + * SPDX-License-Identifier: BSD-2-Clause
> + *
> + * (c) Copyright 2019 Joel Sherrill <joel at rtems.org>
> + */
> +
> +#include "../../fenv/fenv_stub.c"
> diff --git a/newlib/libm/machine/powerpc/fegetenv.c
> b/newlib/libm/machine/powerpc/fegetenv.c
> new file mode 100644
> index 000000000..8cbee7771
> --- /dev/null
> +++ b/newlib/libm/machine/powerpc/fegetenv.c
> @@ -0,0 +1,7 @@
> +/*
> + * SPDX-License-Identifier: BSD-2-Clause
> + *
> + * (c) Copyright 2019 Joel Sherrill <joel at rtems.org>
> + */
> +
> +#include "../../fenv/fenv_stub.c"
> diff --git a/newlib/libm/machine/powerpc/fegetexceptflag.c
> b/newlib/libm/machine/powerpc/fegetexceptflag.c
> new file mode 100644
> index 000000000..8cbee7771
> --- /dev/null
> +++ b/newlib/libm/machine/powerpc/fegetexceptflag.c
> @@ -0,0 +1,7 @@
> +/*
> + * SPDX-License-Identifier: BSD-2-Clause
> + *
> + * (c) Copyright 2019 Joel Sherrill <joel at rtems.org>
> + */
> +
> +#include "../../fenv/fenv_stub.c"
> diff --git a/newlib/libm/machine/powerpc/fegetround.c
> b/newlib/libm/machine/powerpc/fegetround.c
> new file mode 100644
> index 000000000..8cbee7771
> --- /dev/null
> +++ b/newlib/libm/machine/powerpc/fegetround.c
> @@ -0,0 +1,7 @@
> +/*
> + * SPDX-License-Identifier: BSD-2-Clause
> + *
> + * (c) Copyright 2019 Joel Sherrill <joel at rtems.org>
> + */
> +
> +#include "../../fenv/fenv_stub.c"
> diff --git a/newlib/libm/machine/powerpc/feholdexcept.c
> b/newlib/libm/machine/powerpc/feholdexcept.c
> new file mode 100644
> index 000000000..8cbee7771
> --- /dev/null
> +++ b/newlib/libm/machine/powerpc/feholdexcept.c
> @@ -0,0 +1,7 @@
> +/*
> + * SPDX-License-Identifier: BSD-2-Clause
> + *
> + * (c) Copyright 2019 Joel Sherrill <joel at rtems.org>
> + */
> +
> +#include "../../fenv/fenv_stub.c"
> diff --git a/newlib/libm/machine/powerpc/fenv.c
> b/newlib/libm/machine/powerpc/fenv.c
> new file mode 100644
> index 000000000..003727d05
> --- /dev/null
> +++ b/newlib/libm/machine/powerpc/fenv.c
> @@ -0,0 +1,51 @@
> +/*-
> + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
> + *
> + * Copyright (c) 2004 David Schultz <das at 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.
> + *
> + * $FreeBSD$
> + */
> +
> +#define __fenv_static
> +#include <fenv.h>
> +#include <machine/fenv-fp.h>
> +
> +#ifdef __GNUC_GNU_INLINE__
> +#error "This file must be compiled with C99 'inline' semantics"
> +#endif
> +
> +
> +
> +extern inline int feclearexcept(int excepts);
> +extern inline int fegetexceptflag(fexcept_t *flagp, int excepts);
> +extern inline int fesetexceptflag(const fexcept_t *flagp, int excepts);
> +extern inline int feraiseexcept(int excepts);
> +extern inline int fetestexcept(int excepts);
> +extern inline int fegetround(void);
> +extern inline int fesetround(int rounding_mode);
> +extern inline int fegetenv(fenv_t *envp);
> +extern inline int feholdexcept(fenv_t *envp);
> +extern inline int fesetenv(const fenv_t *envp);
> +extern inline int feupdateenv(const fenv_t *envp);
> diff --git a/newlib/libm/machine/powerpc/feraiseexcept.c
> b/newlib/libm/machine/powerpc/feraiseexcept.c
> new file mode 100644
> index 000000000..8cbee7771
> --- /dev/null
> +++ b/newlib/libm/machine/powerpc/feraiseexcept.c
> @@ -0,0 +1,7 @@
> +/*
> + * SPDX-License-Identifier: BSD-2-Clause
> + *
> + * (c) Copyright 2019 Joel Sherrill <joel at rtems.org>
> + */
> +
> +#include "../../fenv/fenv_stub.c"
> diff --git a/newlib/libm/machine/powerpc/fesetenv.c
> b/newlib/libm/machine/powerpc/fesetenv.c
> new file mode 100644
> index 000000000..8cbee7771
> --- /dev/null
> +++ b/newlib/libm/machine/powerpc/fesetenv.c
> @@ -0,0 +1,7 @@
> +/*
> + * SPDX-License-Identifier: BSD-2-Clause
> + *
> + * (c) Copyright 2019 Joel Sherrill <joel at rtems.org>
> + */
> +
> +#include "../../fenv/fenv_stub.c"
> diff --git a/newlib/libm/machine/powerpc/fesetexceptflag.c
> b/newlib/libm/machine/powerpc/fesetexceptflag.c
> new file mode 100644
> index 000000000..8cbee7771
> --- /dev/null
> +++ b/newlib/libm/machine/powerpc/fesetexceptflag.c
> @@ -0,0 +1,7 @@
> +/*
> + * SPDX-License-Identifier: BSD-2-Clause
> + *
> + * (c) Copyright 2019 Joel Sherrill <joel at rtems.org>
> + */
> +
> +#include "../../fenv/fenv_stub.c"
> diff --git a/newlib/libm/machine/powerpc/fesetround.c
> b/newlib/libm/machine/powerpc/fesetround.c
> new file mode 100644
> index 000000000..8cbee7771
> --- /dev/null
> +++ b/newlib/libm/machine/powerpc/fesetround.c
> @@ -0,0 +1,7 @@
> +/*
> + * SPDX-License-Identifier: BSD-2-Clause
> + *
> + * (c) Copyright 2019 Joel Sherrill <joel at rtems.org>
> + */
> +
> +#include "../../fenv/fenv_stub.c"
> diff --git a/newlib/libm/machine/powerpc/fetestexcept.c
> b/newlib/libm/machine/powerpc/fetestexcept.c
> new file mode 100644
> index 000000000..8cbee7771
> --- /dev/null
> +++ b/newlib/libm/machine/powerpc/fetestexcept.c
> @@ -0,0 +1,7 @@
> +/*
> + * SPDX-License-Identifier: BSD-2-Clause
> + *
> + * (c) Copyright 2019 Joel Sherrill <joel at rtems.org>
> + */
> +
> +#include "../../fenv/fenv_stub.c"
> diff --git a/newlib/libm/machine/powerpc/feupdateenv.c
> b/newlib/libm/machine/powerpc/feupdateenv.c
> new file mode 100644
> index 000000000..8cbee7771
> --- /dev/null
> +++ b/newlib/libm/machine/powerpc/feupdateenv.c
> @@ -0,0 +1,7 @@
> +/*
> + * SPDX-License-Identifier: BSD-2-Clause
> + *
> + * (c) Copyright 2019 Joel Sherrill <joel at rtems.org>
> + */
> +
> +#include "../../fenv/fenv_stub.c"
> --
> 2.17.1
>
>
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