[PATCH] Adding fenv support arm.

Eshan Dhawan eshandhawan51 at gmail.com
Mon May 25 16:49:58 UTC 2020


Hello,
I ran the script and made a few changes
but there are errors in the soft float.
I have attached the logs with the mail.

the error is coming due to no definition of the function
__softfloat_float_raise
I searched in freebsd for the definition but couldn't find any thing.

Thanks
-eshan

On Sat, May 23, 2020 at 11:27 PM Eshan Dhawan <eshandhawan51 at gmail.com>
wrote:

> Hello Dr Joel,
> I ran the script, The logs show error in soft float variants and don't
> show there exe files as well.
> I have attached the log file.
>
> Thanks
> -Eshan
>
> On Sat, May 23, 2020 at 10:29 PM Joel Sherrill <joel at rtems.org> wrote:
>
>> This is both a holiday weekend and my birthday weekend. I won't get a
>> chance to review this for a bit.
>>
>> But I am attaching a simple shell script and test program which iterates
>> over all multilib variants, compiles a simple program which should end up
>> linking against every multilib variant. If the script looks right, then
>> this should prove useful in the future.
>>
>> Please check that the right set of exe's for the various multilib options
>> is generated and the fenv code is code for each. My parsing of the multilib
>> variants from gcc needs a double check.
>>
>> On Fri, May 22, 2020 at 6:36 PM Eshan dhawan <eshandhawan51 at gmail.com>
>> wrote:
>>
>>> This patch adds FENV support for ARM
>>>
>>> The code is ported from FreeBSD.
>>>
>>> Signed-off-by: Eshan dhawan <eshandhawan51 at gmail.com>
>>> ---
>>>  newlib/libc/machine/arm/machine/acle-compat.h | 182 ++++++++++
>>>  newlib/libc/machine/arm/machine/fenv-mangle.h |  53 +++
>>>  .../libc/machine/arm/machine/fenv-softfloat.h | 187 ++++++++++
>>>  newlib/libc/machine/arm/machine/fenv-vfp.h    | 187 ++++++++++
>>>  newlib/libc/machine/arm/sys/fenv.h            | 122 +++++++
>>>  newlib/libm/machine/arm/Makefile.am           |  18 +-
>>>  newlib/libm/machine/arm/Makefile.in           | 174 +++++++++-
>>>  newlib/libm/machine/arm/fe_dfl_env.c          |   7 +
>>>  newlib/libm/machine/arm/feclearexcept.c       |   7 +
>>>  newlib/libm/machine/arm/fegetenv.c            |   7 +
>>>  newlib/libm/machine/arm/fegetexceptflag.c     |   7 +
>>>  newlib/libm/machine/arm/fegetround.c          |   7 +
>>>  newlib/libm/machine/arm/feholdexcept.c        |   7 +
>>>  newlib/libm/machine/arm/fenv-softfp.c         |  32 ++
>>>  newlib/libm/machine/arm/fenv-vfp.c            |  32 ++
>>>  newlib/libm/machine/arm/fenv.c                | 328 ++++++++++++++++++
>>>  newlib/libm/machine/arm/feraiseexcept.c       |   7 +
>>>  newlib/libm/machine/arm/fesetenv.c            |   7 +
>>>  newlib/libm/machine/arm/fesetexceptflag.c     |   7 +
>>>  newlib/libm/machine/arm/fesetround.c          |   7 +
>>>  newlib/libm/machine/arm/fetestexcept.c        |   7 +
>>>  newlib/libm/machine/arm/feupdateenv.c         |   7 +
>>>  22 files changed, 1380 insertions(+), 19 deletions(-)
>>>  create mode 100644 newlib/libc/machine/arm/machine/acle-compat.h
>>>  create mode 100644 newlib/libc/machine/arm/machine/fenv-mangle.h
>>>  create mode 100644 newlib/libc/machine/arm/machine/fenv-softfloat.h
>>>  create mode 100644 newlib/libc/machine/arm/machine/fenv-vfp.h
>>>  create mode 100644 newlib/libc/machine/arm/sys/fenv.h
>>>  create mode 100644 newlib/libm/machine/arm/fe_dfl_env.c
>>>  create mode 100644 newlib/libm/machine/arm/feclearexcept.c
>>>  create mode 100644 newlib/libm/machine/arm/fegetenv.c
>>>  create mode 100644 newlib/libm/machine/arm/fegetexceptflag.c
>>>  create mode 100644 newlib/libm/machine/arm/fegetround.c
>>>  create mode 100644 newlib/libm/machine/arm/feholdexcept.c
>>>  create mode 100644 newlib/libm/machine/arm/fenv-softfp.c
>>>  create mode 100644 newlib/libm/machine/arm/fenv-vfp.c
>>>  create mode 100644 newlib/libm/machine/arm/fenv.c
>>>  create mode 100644 newlib/libm/machine/arm/feraiseexcept.c
>>>  create mode 100644 newlib/libm/machine/arm/fesetenv.c
>>>  create mode 100644 newlib/libm/machine/arm/fesetexceptflag.c
>>>  create mode 100644 newlib/libm/machine/arm/fesetround.c
>>>  create mode 100644 newlib/libm/machine/arm/fetestexcept.c
>>>  create mode 100644 newlib/libm/machine/arm/feupdateenv.c
>>>
>>> diff --git a/newlib/libc/machine/arm/machine/acle-compat.h
>>> b/newlib/libc/machine/arm/machine/acle-compat.h
>>> new file mode 100644
>>> index 000000000..888ae2ea8
>>> --- /dev/null
>>> +++ b/newlib/libc/machine/arm/machine/acle-compat.h
>>> @@ -0,0 +1,182 @@
>>> +/*
>>> + * Copyright (c) 2014 ARM Ltd
>>> + * 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.
>>> + * 3. The name of the company may not be used to endorse or promote
>>> + *    products derived from this software without specific prior written
>>> + *    permission.
>>> + *
>>> + * THIS SOFTWARE IS PROVIDED BY ARM LTD ``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 ARM LTD 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.
>>> + */
>>> +
>>> +#ifndef __ARM_ARCH
>>> +
>>> +/* ACLE standardises a set of pre-defines that describe the ARM
>>> architecture.
>>> +   These were mostly implemented in GCC around GCC-4.8; older versions
>>> +   have no, or only partial support.  To provide a level of backwards
>>> +   compatibility we try to work out what the definitions should be,
>>> given
>>> +   the older pre-defines that GCC did produce.  This isn't complete, but
>>> +   it should be enough for use by routines that depend on this header.
>>> */
>>> +
>>> +/* No need to handle ARMv8, GCC had ACLE support before that.  */
>>> +
>>> +# ifdef __ARM_ARCH_7__
>>> +/* The common subset of ARMv7 in all profiles.  */
>>> +#  define __ARM_ARCH 7
>>> +#  define __ARM_ARCH_ISA_THUMB 2
>>> +#  define __ARM_FEATURE_CLZ
>>> +#  define __ARM_FEATURE_LDREX 7
>>> +#  define __ARM_FEATURE_UNALIGNED
>>> +# endif
>>> +
>>> +# if defined (__ARM_ARCH_7A__) || defined (__ARM_ARCH_7R__)
>>> +#  define __ARM_ARCH 7
>>> +#  define __ARM_ARCH_ISA_THUMB 2
>>> +#  define __ARM_ARCH_ISA_ARM
>>> +#  define __ARM_FEATURE_CLZ
>>> +#  define __ARM_FEATURE_SIMD32
>>> +#  define __ARM_FEATURE_DSP
>>> +#  define __ARM_FEATURE_QBIT
>>> +#  define __ARM_FEATURE_SAT
>>> +#  define __ARM_FEATURE_LDREX 15
>>> +#  define __ARM_FEATURE_UNALIGNED
>>> +#  ifdef __ARM_ARCH_7A__
>>> +#   define __ARM_ARCH_PROFILE 'A'
>>> +#  else
>>> +#   define __ARM_ARCH_PROFILE 'R'
>>> +#  endif
>>> +# endif
>>> +
>>> +# ifdef __ARM_ARCH_7EM__
>>> +#  define __ARM_ARCH 7
>>> +#  define __ARM_ARCH_ISA_THUMB 2
>>> +#  define __ARM_FEATURE_CLZ
>>> +#  define __ARM_FEATURE_SIMD32
>>> +#  define __ARM_FEATURE_DSP
>>> +#  define __ARM_FEATURE_QBIT
>>> +#  define __ARM_FEATURE_SAT
>>> +#  define __ARM_FEATURE_LDREX 7
>>> +#  define __ARM_FEATURE_UNALIGNED
>>> +#  define __ARM_ARCH_PROFILE 'M'
>>> +# endif
>>> +
>>> +# ifdef __ARM_ARCH_7M__
>>> +#  define __ARM_ARCH 7
>>> +#  define __ARM_ARCH_ISA_THUMB 2
>>> +#  define __ARM_FEATURE_CLZ
>>> +#  define __ARM_FEATURE_QBIT
>>> +#  define __ARM_FEATURE_SAT
>>> +#  define __ARM_FEATURE_LDREX 7
>>> +#  define __ARM_FEATURE_UNALIGNED
>>> +#  define __ARM_ARCH_PROFILE 'M'
>>> +# endif
>>> +
>>> +# ifdef __ARM_ARCH_6T2__
>>> +#  define __ARM_ARCH 6
>>> +#  define __ARM_ARCH_ISA_THUMB 2
>>> +#  define __ARM_ARCH_ISA_ARM
>>> +#  define __ARM_FEATURE_CLZ
>>> +#  define __ARM_FEATURE_SIMD32
>>> +#  define __ARM_FEATURE_DSP
>>> +#  define __ARM_FEATURE_QBIT
>>> +#  define __ARM_FEATURE_SAT
>>> +#  define __ARM_FEATURE_LDREX 4
>>> +#  define __ARM_FEATURE_UNALIGNED
>>> +# endif
>>> +
>>> +# ifdef __ARM_ARCH_6M__
>>> +#  define __ARM_ARCH 6
>>> +#  define __ARM_ARCH_ISA_THUMB 1
>>> +#  define __ARM_ARCH_PROFILE 'M'
>>> +# endif
>>> +
>>> +# if defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__) \
>>> +  || defined (__ARM_ARCH_6K__) || defined (__ARM_ARCH_6Z__) \
>>> +  || defined (__ARM_ARCH_6ZK__)
>>> +#  define __ARM_ARCH 6
>>> +#  define __ARM_ARCH_ISA_THUMB 1
>>> +#  define __ARM_ARCH_ISA_ARM
>>> +#  define __ARM_FEATURE_CLZ
>>> +#  define __ARM_FEATURE_SIMD32
>>> +#  define __ARM_FEATURE_DSP
>>> +#  define __ARM_FEATURE_QBIT
>>> +#  define __ARM_FEATURE_SAT
>>> +#  define __ARM_FEATURE_UNALIGNED
>>> +#  ifndef __thumb__
>>> +#   if defined (__ARM_ARCH_6K__) || defined (__ARM_ARCH_6ZK__)
>>> +#    define __ARM_FEATURE_LDREX 15
>>> +#   else
>>> +#    define __ARM_FEATURE_LDREX 4
>>> +#   endif
>>> +#  endif
>>> +# endif
>>> +
>>> +# if defined (__ARM_ARCH_5TE__) || defined (__ARM_ARCH_5E__)
>>> +#  define __ARM_ARCH 5
>>> +#  define __ARM_ARCH_ISA_ARM
>>> +#  ifdef __ARM_ARCH_5TE__
>>> +#   define __ARM_ARCH_ISA_THUMB 1
>>> +#  endif
>>> +#  define __ARM_FEATURE_CLZ
>>> +#  define __ARM_FEATURE_DSP
>>> +# endif
>>> +
>>> +# if defined (__ARM_ARCH_5T__) || defined (__ARM_ARCH_5__)
>>> +#  define __ARM_ARCH 5
>>> +#  define __ARM_ARCH_ISA_ARM
>>> +#  ifdef __ARM_ARCH_5TE__
>>> +#   define __ARM_ARCH_ISA_THUMB 1
>>> +#  endif
>>> +#  define __ARM_FEATURE_CLZ
>>> +# endif
>>> +
>>> +# ifdef __ARM_ARCH_4T__
>>> +#  define __ARM_ARCH 4
>>> +#  define __ARM_ARCH_ISA_ARM
>>> +#  define __ARM_ARCH_ISA_THUMB 1
>>> +# endif
>>> +
>>> +# ifdef __ARM_ARCH_4__
>>> +#  define __ARM_ARCH 4
>>> +#  define __ARM_ARCH_ISA_ARM
>>> +# endif
>>> +
>>> +# if defined (__ARM_ARCH_3__) || defined (__ARM_ARCH_3M__)
>>> +#  define __ARM_ARCH 3
>>> +#  define __ARM_ARCH_ISA_ARM
>>> +# endif
>>> +
>>> +# ifdef __ARM_ARCH_2__
>>> +#  define __ARM_ARCH 2
>>> +#  define __ARM_ARCH_ISA_ARM
>>> +# endif
>>> +
>>> +# ifdef __ARMEB__
>>> +#  define __ARM_BIG_ENDIAN
>>> +# endif
>>> +
>>> +/* If we still don't know what the target architecture is, then we're
>>> +   probably not using GCC.  */
>>> +# ifndef __ARM_ARCH
>>> +#  error Unable to determine architecture version.
>>> +# endif
>>> +
>>> +#endif /* __ARM_ARCH  */
>>> +
>>> diff --git a/newlib/libc/machine/arm/machine/fenv-mangle.h
>>> b/newlib/libc/machine/arm/machine/fenv-mangle.h
>>> new file mode 100644
>>> index 000000000..476f7b20c
>>> --- /dev/null
>>> +++ b/newlib/libc/machine/arm/machine/fenv-mangle.h
>>> @@ -0,0 +1,53 @@
>>> +/*-
>>> + * Copyright (c) 2013 Andrew Turner <andrew 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.
>>> + *
>>> + * $FreeBSD$
>>> + */
>>> +
>>> +#ifdef _FENV_MANGLE_H_
>>> +#error Only include fenv-mangle.h once
>>> +#endif
>>> +
>>> +#define        _FENV_MANGLE_H_
>>> +
>>> +#ifndef FENV_MANGLE
>>> +#error FENV_MANGLE is undefined
>>> +#endif
>>> +
>>> +#define        feclearexcept   FENV_MANGLE(feclearexcept)
>>> +#define        fegetexceptflag FENV_MANGLE(fegetexceptflag)
>>> +#define        fesetexceptflag FENV_MANGLE(fesetexceptflag)
>>> +#define        feraiseexcept   FENV_MANGLE(feraiseexcept)
>>> +#define        fetestexcept    FENV_MANGLE(fetestexcept)
>>> +#define        fegetround      FENV_MANGLE(fegetround)
>>> +#define        fesetround      FENV_MANGLE(fesetround)
>>> +#define        fegetenv        FENV_MANGLE(fegetenv)
>>> +#define        feholdexcept    FENV_MANGLE(feholdexcept)
>>> +#define        fesetenv        FENV_MANGLE(fesetenv)
>>> +#define        feupdateenv     FENV_MANGLE(feupdateenv)
>>> +#define        feenableexcept  FENV_MANGLE(feenableexcept)
>>> +#define        fedisableexcept FENV_MANGLE(fedisableexcept)
>>> +#define        fegetexcept     FENV_MANGLE(fegetexcept)
>>> +
>>> diff --git a/newlib/libc/machine/arm/machine/fenv-softfloat.h
>>> b/newlib/libc/machine/arm/machine/fenv-softfloat.h
>>> new file mode 100644
>>> index 000000000..e53e54f54
>>> --- /dev/null
>>> +++ b/newlib/libc/machine/arm/machine/fenv-softfloat.h
>>> @@ -0,0 +1,187 @@
>>> + /*-
>>> + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
>>> + *
>>> + * Copyright (c) 2004-2011 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_
>>> +#error "This file is meant to be included only by <sys/fenv.h>."
>>> +#endif
>>> +/* the file can be added from architecture specific fenv.h file found
>>> in
>>> + *libc/sys/arch/sys *
>>> + *
>>> + * 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 */
>>> diff --git a/newlib/libc/machine/arm/machine/fenv-vfp.h
>>> b/newlib/libc/machine/arm/machine/fenv-vfp.h
>>> new file mode 100644
>>> index 000000000..25d71f3ab
>>> --- /dev/null
>>> +++ b/newlib/libc/machine/arm/machine/fenv-vfp.h
>>> @@ -0,0 +1,187 @@
>>> +/*-
>>> + * 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.
>>> + *
>>> + * $FreeBSD$
>>> + */
>>> +
>>> +
>>> +
>>> +#define        vmrs_fpscr(__r) __asm __volatile("vmrs %0, fpscr" :
>>> "=&r"(__r))
>>> +#define        vmsr_fpscr(__r) __asm __volatile("vmsr fpscr, %0" : :
>>> "r"(__r))
>>> +
>>> +
>>> +#define _FPU_MASK_SHIFT        8
>>> +
>>> +__fenv_static inline int feclearexcept(int excepts)
>>> +{
>>> +       fexcept_t __fpsr;
>>> +
>>> +       vmrs_fpscr(__fpsr);
>>> +       __fpsr &= ~excepts;
>>> +       vmsr_fpscr(__fpsr);
>>> +       return (0);
>>> +}
>>> +
>>> +__fenv_static inline int
>>> +fegetexceptflag(fexcept_t *flagp, int excepts)
>>> +{
>>> +       fexcept_t __fpsr;
>>> +
>>> +       vmrs_fpscr(__fpsr);
>>> +       *flagp = __fpsr & excepts;
>>> +       return (0);
>>> +}
>>> +
>>> +__fenv_static inline int
>>> +fesetexceptflag(const fexcept_t *flagp, int excepts)
>>> +{
>>> +       fexcept_t __fpsr;
>>> +
>>> +       vmrs_fpscr(__fpsr);
>>> +       __fpsr &= ~excepts;
>>> +       __fpsr |= *flagp & excepts;
>>> +       vmsr_fpscr(__fpsr);
>>> +       return (0);
>>> +}
>>> +
>>> +__fenv_static inline int
>>> +feraiseexcept(int excepts)
>>> +{
>>> +       fexcept_t __ex = excepts;
>>> +
>>> +       fesetexceptflag(&__ex, excepts);        /* XXX */
>>> +       return (0);
>>> +}
>>> +
>>> +__fenv_static inline int
>>> +fetestexcept(int excepts)
>>> +{
>>> +       fexcept_t __fpsr;
>>> +
>>> +       vmrs_fpscr(__fpsr);
>>> +       return (__fpsr & excepts);
>>> +}
>>> +
>>> +__fenv_static inline int
>>> +fegetround(void)
>>> +{
>>> +       fenv_t __fpsr;
>>> +
>>> +       vmrs_fpscr(__fpsr);
>>> +       return (__fpsr & _ROUND_MASK);
>>> +}
>>> +
>>> +__fenv_static inline int
>>> +fesetround(int round)
>>> +{
>>> +       fenv_t __fpsr;
>>> +
>>> +       vmrs_fpscr(__fpsr);
>>> +       __fpsr &= ~(_ROUND_MASK);
>>> +       __fpsr |= round;
>>> +       vmsr_fpscr(__fpsr);
>>> +       return (0);
>>> +}
>>> +
>>> +__fenv_static inline int
>>> +fegetenv(fenv_t *envp)
>>> +{
>>> +
>>> +       vmrs_fpscr(*envp);
>>> +       return (0);
>>> +}
>>> +
>>> +__fenv_static inline int
>>> +feholdexcept(fenv_t *envp)
>>> +{
>>> +       fenv_t __env;
>>> +
>>> +       vmrs_fpscr(__env);
>>> +       *envp = __env;
>>> +       __env &= ~(FE_ALL_EXCEPT);
>>> +       vmsr_fpscr(__env);
>>> +       return (0);
>>> +}
>>> +
>>> +__fenv_static inline int
>>> +fesetenv(const fenv_t *envp)
>>> +{
>>> +
>>> +       vmsr_fpscr(*envp);
>>> +       return (0);
>>> +}
>>> +
>>> +__fenv_static inline int
>>> +feupdateenv(const fenv_t *envp)
>>> +{
>>> +       fexcept_t __fpsr;
>>> +
>>> +       vmrs_fpscr(__fpsr);
>>> +       vmsr_fpscr(*envp);
>>> +       feraiseexcept(__fpsr & FE_ALL_EXCEPT);
>>> +       return (0);
>>> +}
>>> +
>>> +#if __BSD_VISIBLE
>>> +
>>> +/* We currently provide no external definitions of the functions below.
>>> */
>>> +
>>> +__fenv_static inline int
>>> +feenableexcept(int __mask)
>>> +{
>>> +       fenv_t __old_fpsr, __new_fpsr;
>>> +
>>> +       vmrs_fpscr(__old_fpsr);
>>> +       __new_fpsr = __old_fpsr |
>>> +           ((__mask & FE_ALL_EXCEPT) << _FPU_MASK_SHIFT);
>>> +       vmsr_fpscr(__new_fpsr);
>>> +       return ((__old_fpsr >> _FPU_MASK_SHIFT) & FE_ALL_EXCEPT);
>>> +}
>>> +
>>> +__fenv_static inline int
>>> +fedisableexcept(int __mask)
>>> +{
>>> +       fenv_t __old_fpsr, __new_fpsr;
>>> +
>>> +       vmrs_fpscr(__old_fpsr);
>>> +       __new_fpsr = __old_fpsr &
>>> +           ~((__mask & FE_ALL_EXCEPT) << _FPU_MASK_SHIFT);
>>> +       vmsr_fpscr(__new_fpsr);
>>> +       return ((__old_fpsr >> _FPU_MASK_SHIFT) & FE_ALL_EXCEPT);
>>> +}
>>> +
>>> +__fenv_static inline int
>>> +fegetexcept(void)
>>> +{
>>> +       fenv_t __fpsr;
>>> +
>>> +       vmrs_fpscr(__fpsr);
>>> +       return (__fpsr & FE_ALL_EXCEPT);
>>> +}
>>> +
>>> +#endif /* __BSD_VISIBLE */
>>> +
>>> diff --git a/newlib/libc/machine/arm/sys/fenv.h
>>> b/newlib/libc/machine/arm/sys/fenv.h
>>> new file mode 100644
>>> index 000000000..af74c5f47
>>> --- /dev/null
>>> +++ b/newlib/libc/machine/arm/sys/fenv.h
>>> @@ -0,0 +1,122 @@
>>> +/*-
>>> + * 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_ 1
>>> +
>>> +#include <sys/_types.h>
>>> +#include <sys/cdefs.h>
>>> +
>>> +#ifdef __cplusplus
>>> +extern "C" {
>>> +#endif
>>> +
>>> +#ifndef        __fenv_static
>>> +#define        __fenv_static static
>>> +#endif
>>> +
>>> +typedef int fenv_t;
>>> +typedef int fexcept_t;
>>> +
>>> +/* Exception flags */
>>> +#define        FE_INVALID      0x0001
>>> +#define        FE_DIVBYZERO    0x0002
>>> +#define        FE_OVERFLOW     0x0004
>>> +#define        FE_UNDERFLOW    0x0008
>>> +#define        FE_INEXACT      0x0010
>>> +#ifdef __ARM_PCS_VFP
>>> +#define        FE_DENORMAL     0x0080
>>> +#define        FE_ALL_EXCEPT   (FE_DIVBYZERO | FE_INEXACT | \
>>> +                        FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW |
>>> FE_DENORMAL)
>>> +#else
>>> +#define        FE_ALL_EXCEPT   (FE_DIVBYZERO | FE_INEXACT | \
>>> +                        FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW)
>>> +#endif
>>> +
>>> +
>>> +
>>> +/* Rounding modes */
>>> +#define        VFP_FE_TONEAREST        0x00000000
>>> +#define        VFP_FE_UPWARD           0x00400000
>>> +#define        VFP_FE_DOWNWARD         0x00800000
>>> +#define        VFP_FE_TOWARDZERO       0x00c00000
>>> +
>>> +#ifdef __ARM_PCS_VFP
>>> +#define        FE_TONEAREST    VFP_FE_TONEAREST
>>> +#define        FE_UPWARD       VFP_FE_UPWARD
>>> +#define        FE_DOWNWARD     VFP_FE_DOWNWARD
>>> +#define        FE_TOWARDZERO   VFP_FE_TOWARDZERO
>>> +#else
>>> +#define        FE_TONEAREST    0x0000
>>> +#define        FE_TOWARDZERO   0x0001
>>> +#define        FE_UPWARD       0x0002
>>> +#define        FE_DOWNWARD     0x0003
>>> +#endif
>>> +#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 */
>>> +#ifndef __ARM_PCS_VFP
>>> +#define        _FPUSW_SHIFT    16
>>> +#define        _ENABLE_MASK    (FE_ALL_EXCEPT << _FPUSW_SHIFT)
>>> +#endif
>>> +
>>> +#ifndef __ARM_PCS_VFP
>>> +
>>> +int feclearexcept(int excepts);
>>> +int fegetexceptflag(fexcept_t *flagp, int excepts);
>>> +int fesetexceptflag(const fexcept_t *flagp, int excepts);
>>> +int feraiseexcept(int excepts);
>>> +int fetestexcept(int excepts);
>>> +int fegetround(void);
>>> +int fesetround(int round);
>>> +int fegetenv(fenv_t *envp);
>>> +int feholdexcept(fenv_t *envp);
>>> +int fesetenv(const fenv_t *envp);
>>> +int feupdateenv(const fenv_t *envp);
>>> +#if __BSD_VISIBLE
>>> +int feenableexcept(int __mask);
>>> +int fedisableexcept(int __mask);
>>> +int fegetexcept(void);
>>> +#endif /* __BSD_VISIBLE */
>>> +
>>> +#endif /* __ARM_PCS_VFP */
>>> +
>>> +#ifdef __cplusplus
>>> +}
>>> +#endif
>>> +
>>> +#endif /* _SYS_FENV_H_ */
>>> diff --git a/newlib/libm/machine/arm/Makefile.am
>>> b/newlib/libm/machine/arm/Makefile.am
>>> index 1f10a7a40..a64ee59d5 100644
>>> --- a/newlib/libm/machine/arm/Makefile.am
>>> +++ b/newlib/libm/machine/arm/Makefile.am
>>> @@ -19,7 +19,23 @@ LIB_SOURCES = \
>>>         sf_nearbyint.c \
>>>         sf_rint.c \
>>>         sf_round.c \
>>> -       sf_trunc.c
>>> +       sf_trunc.c \
>>> +       feclearexcept.c \
>>> +       fe_dfl_env.c\
>>> +       fegetenv.c \
>>> +       fegetexceptflag.c \
>>> +       fegetround.c \
>>> +       feholdexcept.c \
>>> +       fenv.c \
>>> +       feraiseexcept.c \
>>> +       fesetenv.c \
>>> +       fesetexceptflag.c \
>>> +       fesetround.c \
>>> +       fetestexcept.c \
>>> +       feupdateenv.c \
>>> +       fenv-vfp.c \
>>> +       fenv-softfp.c
>>> +
>>>
>>>  noinst_LIBRARIES = lib.a
>>>  lib_a_SOURCES = $(LIB_SOURCES)
>>> diff --git a/newlib/libm/machine/arm/Makefile.in
>>> b/newlib/libm/machine/arm/Makefile.in
>>> index 0a5a27327..70b03df46 100644
>>> --- a/newlib/libm/machine/arm/Makefile.in
>>> +++ b/newlib/libm/machine/arm/Makefile.in
>>> @@ -1,9 +1,8 @@
>>> -# Makefile.in generated by automake 1.11.6 from Makefile.am.
>>> +# Makefile.in generated by automake 1.12.6 from Makefile.am.
>>>  # @configure_input@
>>>
>>> -# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
>>> -# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
>>> -# Foundation, Inc.
>>> +# Copyright (C) 1994-2012 Free Software Foundation, Inc.
>>> +
>>>  # This Makefile.in is free software; the Free Software Foundation
>>>  # gives unlimited permission to copy and/or distribute it,
>>>  # with or without modifications, as long as this notice is preserved.
>>> @@ -54,7 +53,7 @@ build_triplet = @build@
>>>  host_triplet = @host@
>>>  DIST_COMMON = $(srcdir)/../../../Makefile.shared $(srcdir)/Makefile.in \
>>>         $(srcdir)/Makefile.am $(top_srcdir)/configure \
>>> -       $(am__configure_deps) $(srcdir)/../../../../mkinstalldirs
>>> +       $(am__configure_deps) $(top_srcdir)/../../../../mkinstalldirs
>>>  subdir = .
>>>  ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
>>>  am__aclocal_m4_deps = $(top_srcdir)/../../../acinclude.m4 \
>>> @@ -76,7 +75,15 @@ am__objects_1 = lib_a-e_sqrt.$(OBJEXT)
>>> lib_a-ef_sqrt.$(OBJEXT) \
>>>         lib_a-s_round.$(OBJEXT) lib_a-s_trunc.$(OBJEXT) \
>>>         lib_a-sf_ceil.$(OBJEXT) lib_a-sf_floor.$(OBJEXT) \
>>>         lib_a-sf_nearbyint.$(OBJEXT) lib_a-sf_rint.$(OBJEXT) \
>>> -       lib_a-sf_round.$(OBJEXT) lib_a-sf_trunc.$(OBJEXT)
>>> +       lib_a-sf_round.$(OBJEXT) lib_a-sf_trunc.$(OBJEXT) \
>>> +       lib_a-feclearexcept.$(OBJEXT) lib_a-fe_dfl_env.$(OBJEXT) \
>>> +       lib_a-fegetenv.$(OBJEXT) lib_a-fegetexceptflag.$(OBJEXT) \
>>> +       lib_a-fegetround.$(OBJEXT) lib_a-feholdexcept.$(OBJEXT) \
>>> +       lib_a-fenv.$(OBJEXT) lib_a-feraiseexcept.$(OBJEXT) \
>>> +       lib_a-fesetenv.$(OBJEXT) lib_a-fesetexceptflag.$(OBJEXT) \
>>> +       lib_a-fesetround.$(OBJEXT) lib_a-fetestexcept.$(OBJEXT) \
>>> +       lib_a-feupdateenv.$(OBJEXT) lib_a-fenv-vfp.$(OBJEXT) \
>>> +       lib_a-fenv-softfp.$(OBJEXT)
>>>  am_lib_a_OBJECTS = $(am__objects_1)
>>>  lib_a_OBJECTS = $(am_lib_a_OBJECTS)
>>>  DEFAULT_INCLUDES = -I. at am__isrc@
>>> @@ -95,6 +102,8 @@ am__can_run_installinfo = \
>>>  DATA = $(noinst_DATA)
>>>  ETAGS = etags
>>>  CTAGS = ctags
>>> +CSCOPE = cscope
>>> +AM_RECURSIVE_TARGETS = cscope
>>>  ACLOCAL = @ACLOCAL@
>>>  AMTAR = @AMTAR@
>>>  AR = @AR@
>>> @@ -216,7 +225,22 @@ LIB_SOURCES = \
>>>         sf_nearbyint.c \
>>>         sf_rint.c \
>>>         sf_round.c \
>>> -       sf_trunc.c
>>> +       sf_trunc.c \
>>> +       feclearexcept.c \
>>> +       fe_dfl_env.c\
>>> +       fegetenv.c \
>>> +       fegetexceptflag.c \
>>> +       fegetround.c \
>>> +       feholdexcept.c \
>>> +       fenv.c \
>>> +       feraiseexcept.c \
>>> +       fesetenv.c \
>>> +       fesetexceptflag.c \
>>> +       fesetround.c \
>>> +       fetestexcept.c \
>>> +       feupdateenv.c \
>>> +       fenv-vfp.c \
>>> +       fenv-softfp.c
>>>
>>>  noinst_LIBRARIES = lib.a
>>>  lib_a_SOURCES = $(LIB_SOURCES)
>>> @@ -378,6 +402,96 @@ lib_a-sf_trunc.o: sf_trunc.c
>>>  lib_a-sf_trunc.obj: sf_trunc.c
>>>         $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_trunc.obj `if test -f
>>> 'sf_trunc.c'; then $(CYGPATH_W) 'sf_trunc.c'; else $(CYGPATH_W)
>>> '$(srcdir)/sf_trunc.c'; fi`
>>>
>>> +lib_a-feclearexcept.o: feclearexcept.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feclearexcept.o `test -f
>>> 'feclearexcept.c' || echo '$(srcdir)/'`feclearexcept.c
>>> +
>>> +lib_a-feclearexcept.obj: feclearexcept.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feclearexcept.obj `if
>>> test -f 'feclearexcept.c'; then $(CYGPATH_W) 'feclearexcept.c'; else
>>> $(CYGPATH_W) '$(srcdir)/feclearexcept.c'; fi`
>>> +
>>> +lib_a-fe_dfl_env.o: fe_dfl_env.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fe_dfl_env.o `test -f
>>> 'fe_dfl_env.c' || echo '$(srcdir)/'`fe_dfl_env.c
>>> +
>>> +lib_a-fe_dfl_env.obj: fe_dfl_env.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fe_dfl_env.obj `if test
>>> -f 'fe_dfl_env.c'; then $(CYGPATH_W) 'fe_dfl_env.c'; else $(CYGPATH_W)
>>> '$(srcdir)/fe_dfl_env.c'; fi`
>>> +
>>> +lib_a-fegetenv.o: fegetenv.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetenv.o `test -f
>>> 'fegetenv.c' || echo '$(srcdir)/'`fegetenv.c
>>> +
>>> +lib_a-fegetenv.obj: fegetenv.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetenv.obj `if test -f
>>> 'fegetenv.c'; then $(CYGPATH_W) 'fegetenv.c'; else $(CYGPATH_W)
>>> '$(srcdir)/fegetenv.c'; fi`
>>> +
>>> +lib_a-fegetexceptflag.o: fegetexceptflag.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetexceptflag.o `test
>>> -f 'fegetexceptflag.c' || echo '$(srcdir)/'`fegetexceptflag.c
>>> +
>>> +lib_a-fegetexceptflag.obj: fegetexceptflag.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetexceptflag.obj `if
>>> test -f 'fegetexceptflag.c'; then $(CYGPATH_W) 'fegetexceptflag.c'; else
>>> $(CYGPATH_W) '$(srcdir)/fegetexceptflag.c'; fi`
>>> +
>>> +lib_a-fegetround.o: fegetround.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetround.o `test -f
>>> 'fegetround.c' || echo '$(srcdir)/'`fegetround.c
>>> +
>>> +lib_a-fegetround.obj: fegetround.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetround.obj `if test
>>> -f 'fegetround.c'; then $(CYGPATH_W) 'fegetround.c'; else $(CYGPATH_W)
>>> '$(srcdir)/fegetround.c'; fi`
>>> +
>>> +lib_a-feholdexcept.o: feholdexcept.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feholdexcept.o `test -f
>>> 'feholdexcept.c' || echo '$(srcdir)/'`feholdexcept.c
>>> +
>>> +lib_a-feholdexcept.obj: feholdexcept.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feholdexcept.obj `if test
>>> -f 'feholdexcept.c'; then $(CYGPATH_W) 'feholdexcept.c'; else $(CYGPATH_W)
>>> '$(srcdir)/feholdexcept.c'; fi`
>>> +
>>> +lib_a-fenv.o: fenv.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fenv.o `test -f 'fenv.c'
>>> || echo '$(srcdir)/'`fenv.c
>>> +
>>> +lib_a-fenv.obj: fenv.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fenv.obj `if test -f
>>> 'fenv.c'; then $(CYGPATH_W) 'fenv.c'; else $(CYGPATH_W) '$(srcdir)/fenv.c';
>>> fi`
>>> +
>>> +lib_a-feraiseexcept.o: feraiseexcept.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feraiseexcept.o `test -f
>>> 'feraiseexcept.c' || echo '$(srcdir)/'`feraiseexcept.c
>>> +
>>> +lib_a-feraiseexcept.obj: feraiseexcept.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feraiseexcept.obj `if
>>> test -f 'feraiseexcept.c'; then $(CYGPATH_W) 'feraiseexcept.c'; else
>>> $(CYGPATH_W) '$(srcdir)/feraiseexcept.c'; fi`
>>> +
>>> +lib_a-fesetenv.o: fesetenv.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetenv.o `test -f
>>> 'fesetenv.c' || echo '$(srcdir)/'`fesetenv.c
>>> +
>>> +lib_a-fesetenv.obj: fesetenv.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetenv.obj `if test -f
>>> 'fesetenv.c'; then $(CYGPATH_W) 'fesetenv.c'; else $(CYGPATH_W)
>>> '$(srcdir)/fesetenv.c'; fi`
>>> +
>>> +lib_a-fesetexceptflag.o: fesetexceptflag.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetexceptflag.o `test
>>> -f 'fesetexceptflag.c' || echo '$(srcdir)/'`fesetexceptflag.c
>>> +
>>> +lib_a-fesetexceptflag.obj: fesetexceptflag.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetexceptflag.obj `if
>>> test -f 'fesetexceptflag.c'; then $(CYGPATH_W) 'fesetexceptflag.c'; else
>>> $(CYGPATH_W) '$(srcdir)/fesetexceptflag.c'; fi`
>>> +
>>> +lib_a-fesetround.o: fesetround.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetround.o `test -f
>>> 'fesetround.c' || echo '$(srcdir)/'`fesetround.c
>>> +
>>> +lib_a-fesetround.obj: fesetround.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetround.obj `if test
>>> -f 'fesetround.c'; then $(CYGPATH_W) 'fesetround.c'; else $(CYGPATH_W)
>>> '$(srcdir)/fesetround.c'; fi`
>>> +
>>> +lib_a-fetestexcept.o: fetestexcept.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fetestexcept.o `test -f
>>> 'fetestexcept.c' || echo '$(srcdir)/'`fetestexcept.c
>>> +
>>> +lib_a-fetestexcept.obj: fetestexcept.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fetestexcept.obj `if test
>>> -f 'fetestexcept.c'; then $(CYGPATH_W) 'fetestexcept.c'; else $(CYGPATH_W)
>>> '$(srcdir)/fetestexcept.c'; fi`
>>> +
>>> +lib_a-feupdateenv.o: feupdateenv.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feupdateenv.o `test -f
>>> 'feupdateenv.c' || echo '$(srcdir)/'`feupdateenv.c
>>> +
>>> +lib_a-feupdateenv.obj: feupdateenv.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feupdateenv.obj `if test
>>> -f 'feupdateenv.c'; then $(CYGPATH_W) 'feupdateenv.c'; else $(CYGPATH_W)
>>> '$(srcdir)/feupdateenv.c'; fi`
>>> +
>>> +lib_a-fenv-vfp.o: fenv-vfp.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fenv-vfp.o `test -f
>>> 'fenv-vfp.c' || echo '$(srcdir)/'`fenv-vfp.c
>>> +
>>> +lib_a-fenv-vfp.obj: fenv-vfp.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fenv-vfp.obj `if test -f
>>> 'fenv-vfp.c'; then $(CYGPATH_W) 'fenv-vfp.c'; else $(CYGPATH_W)
>>> '$(srcdir)/fenv-vfp.c'; fi`
>>> +
>>> +lib_a-fenv-softfp.o: fenv-softfp.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fenv-softfp.o `test -f
>>> 'fenv-softfp.c' || echo '$(srcdir)/'`fenv-softfp.c
>>> +
>>> +lib_a-fenv-softfp.obj: fenv-softfp.c
>>> +       $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
>>> $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fenv-softfp.obj `if test
>>> -f 'fenv-softfp.c'; then $(CYGPATH_W) 'fenv-softfp.c'; else $(CYGPATH_W)
>>> '$(srcdir)/fenv-softfp.c'; fi`
>>> +
>>>  ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
>>>         list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
>>>         unique=`for i in $$list; do \
>>> @@ -427,8 +541,32 @@ GTAGS:
>>>           && $(am__cd) $(top_srcdir) \
>>>           && gtags -i $(GTAGS_ARGS) "$$here"
>>>
>>> +cscope: cscope.files
>>> +       test ! -s cscope.files \
>>> +         || $(CSCOPE) -b -q $(AM_CSCOPEFLAGS) $(CSCOPEFLAGS) -i
>>> cscope.files $(CSCOPE_ARGS)
>>> +
>>> +clean-cscope:
>>> +       -rm -f cscope.files
>>> +
>>> +cscope.files: clean-cscope  cscopelist
>>> +
>>> +cscopelist:  $(HEADERS) $(SOURCES) $(LISP)
>>> +       list='$(SOURCES) $(HEADERS) $(LISP)'; \
>>> +       case "$(srcdir)" in \
>>> +         [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
>>> +         *) sdir=$(subdir)/$(srcdir) ;; \
>>> +       esac; \
>>> +       for i in $$list; do \
>>> +         if test -f "$$i"; then \
>>> +           echo "$(subdir)/$$i"; \
>>> +         else \
>>> +           echo "$$sdir/$$i"; \
>>> +         fi; \
>>> +       done >> $(top_builddir)/cscope.files
>>> +
>>>  distclean-tags:
>>>         -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
>>> +       -rm -f cscope.out cscope.in.out cscope.po.out cscope.files
>>>  check-am:
>>>  check: check-am
>>>  all-am: Makefile $(LIBRARIES) $(DATA)
>>> @@ -537,17 +675,17 @@ uninstall-am:
>>>  .MAKE: install-am install-strip
>>>
>>>  .PHONY: CTAGS GTAGS all all-am am--refresh check check-am clean \
>>> -       clean-generic clean-noinstLIBRARIES ctags distclean \
>>> -       distclean-compile distclean-generic distclean-tags dvi dvi-am \
>>> -       html html-am info info-am install install-am install-data \
>>> -       install-data-am install-dvi install-dvi-am install-exec \
>>> -       install-exec-am install-html install-html-am install-info \
>>> -       install-info-am install-man install-pdf install-pdf-am \
>>> -       install-ps install-ps-am install-strip installcheck \
>>> -       installcheck-am installdirs maintainer-clean \
>>> -       maintainer-clean-generic mostlyclean mostlyclean-compile \
>>> -       mostlyclean-generic pdf pdf-am ps ps-am tags uninstall \
>>> -       uninstall-am
>>> +       clean-cscope clean-generic clean-noinstLIBRARIES cscope \
>>> +       cscopelist ctags distclean distclean-compile distclean-generic \
>>> +       distclean-tags dvi dvi-am html html-am info info-am install \
>>> +       install-am install-data install-data-am install-dvi \
>>> +       install-dvi-am install-exec install-exec-am install-html \
>>> +       install-html-am install-info install-info-am install-man \
>>> +       install-pdf install-pdf-am install-ps install-ps-am \
>>> +       install-strip installcheck installcheck-am installdirs \
>>> +       maintainer-clean maintainer-clean-generic mostlyclean \
>>> +       mostlyclean-compile mostlyclean-generic pdf pdf-am ps ps-am \
>>> +       tags uninstall uninstall-am
>>>
>>>  objectlist.awk.in: $(noinst_LTLIBRARIES)
>>>         -rm -f objectlist.awk.in
>>> diff --git a/newlib/libm/machine/arm/fe_dfl_env.c
>>> b/newlib/libm/machine/arm/fe_dfl_env.c
>>> new file mode 100644
>>> index 000000000..8cbee7771
>>> --- /dev/null
>>> +++ b/newlib/libm/machine/arm/fe_dfl_env.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/arm/feclearexcept.c
>>> b/newlib/libm/machine/arm/feclearexcept.c
>>> new file mode 100644
>>> index 000000000..8cbee7771
>>> --- /dev/null
>>> +++ b/newlib/libm/machine/arm/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/arm/fegetenv.c
>>> b/newlib/libm/machine/arm/fegetenv.c
>>> new file mode 100644
>>> index 000000000..8cbee7771
>>> --- /dev/null
>>> +++ b/newlib/libm/machine/arm/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/arm/fegetexceptflag.c
>>> b/newlib/libm/machine/arm/fegetexceptflag.c
>>> new file mode 100644
>>> index 000000000..8cbee7771
>>> --- /dev/null
>>> +++ b/newlib/libm/machine/arm/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/arm/fegetround.c
>>> b/newlib/libm/machine/arm/fegetround.c
>>> new file mode 100644
>>> index 000000000..8cbee7771
>>> --- /dev/null
>>> +++ b/newlib/libm/machine/arm/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/arm/feholdexcept.c
>>> b/newlib/libm/machine/arm/feholdexcept.c
>>> new file mode 100644
>>> index 000000000..8cbee7771
>>> --- /dev/null
>>> +++ b/newlib/libm/machine/arm/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/arm/fenv-softfp.c
>>> b/newlib/libm/machine/arm/fenv-softfp.c
>>> new file mode 100644
>>> index 000000000..a576cc1b2
>>> --- /dev/null
>>> +++ b/newlib/libm/machine/arm/fenv-softfp.c
>>> @@ -0,0 +1,32 @@
>>> +/*-
>>> + * Copyright (c) 2013 Andrew Turner <andrew 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_MANGLE(x)  __softfp_ ##x
>>> +#include <machine/fenv-mangle.h>
>>> +#include "fenv.c"
>>> +
>>> diff --git a/newlib/libm/machine/arm/fenv-vfp.c
>>> b/newlib/libm/machine/arm/fenv-vfp.c
>>> new file mode 100644
>>> index 000000000..297e81296
>>> --- /dev/null
>>> +++ b/newlib/libm/machine/arm/fenv-vfp.c
>>> @@ -0,0 +1,32 @@
>>> +/*-
>>> + * Copyright (c) 2013 Andrew Turner <andrew 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_MANGLE(x)  __vfp_ ##x
>>> +#include <machine/fenv-mangle.h>
>>> +#include "fenv.c"
>>> +
>>> diff --git a/newlib/libm/machine/arm/fenv.c
>>> b/newlib/libm/machine/arm/fenv.c
>>> new file mode 100644
>>> index 000000000..278de8633
>>> --- /dev/null
>>> +++ b/newlib/libm/machine/arm/fenv.c
>>> @@ -0,0 +1,328 @@
>>> +/*-
>>> + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
>>> + *
>>> + * Copyright (c) 2004 David Schultz <das at FreeBSD.ORG>
>>> + * Copyright (c) 2013 Andrew Turner <andrew 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/acle-compat.h>
>>> +
>>> +#if __ARM_ARCH >= 6
>>> +#define FENV_ARMv6
>>> +#endif
>>> +
>>> +/* When SOFTFP_ABI is defined we are using the softfp ABI. */
>>> +#if defined(__VFP_FP__) && !defined(__ARM_PCS_VFP)
>>> +#define SOFTFP_ABI
>>> +#endif
>>> +
>>> +
>>> +#ifndef FENV_MANGLE
>>> +/*
>>> + * Hopefully the system ID byte is immutable, so it's valid to use
>>> + * this as a default environment.
>>> + */
>>> +fenv_t __fe_dfl_env = { 0 };
>>> +
>>> +const fenv_t *_fe_dfl_env = &__fe_dfl_env;
>>> +#endif
>>> +
>>> +
>>> +/* If this is a non-mangled softfp version special processing is
>>> required */
>>> +#if defined(FENV_MANGLE) || !defined(SOFTFP_ABI) || !defined(FENV_ARMv6)
>>> +
>>> +/*
>>> + * The following macros map between the softfloat emulator's flags and
>>> + * the hardware's FPSR.  The hardware this file was written for doesn't
>>> + * have rounding control bits, so we stick those in the system ID byte.
>>> + */
>>> +#ifndef __ARM_PCS_VFP
>>> +#define        __set_env(env, flags, mask, rnd) env = ((flags)
>>>        \
>>> +                                               | (mask)<<_FPUSW_SHIFT  \
>>> +                                               | (rnd) << 24)
>>> +#define        __env_flags(env)                ((env) & FE_ALL_EXCEPT)
>>> +#define        __env_mask(env)                 (((env) >>
>>> _FPUSW_SHIFT)        \
>>> +                                               & FE_ALL_EXCEPT)
>>> +#define        __env_round(env)                (((env) >> 24) &
>>> _ROUND_MASK)
>>> +
>>> +#include <machine/fenv-softfloat.h>
>>> +
>>> +#else /* __ARM_PCS_VFP PRESENT */
>>> +
>>> +#include <machine/fenv-vfp.h>
>>> +
>>> +#endif /* __ARM_PCS_VFP */
>>> +
>>> +#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 round);
>>> +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);
>>> +extern inline int feenableexcept(int __mask);
>>> +extern inline int fedisableexcept(int __mask);
>>> +extern inline int fegetexcept(void);
>>> +
>>> +#else /* !FENV_MANGLE && SOFTFP_ABI */
>>> +/* Set by libc when the VFP unit is enabled */
>>> +
>>> +extern int _libc_arm_fpu_present;
>>> +
>>> +int __softfp_feclearexcept(int excepts);
>>> +int __softfp_fegetexceptflag(fexcept_t *flagp, int excepts);
>>> +int __softfp_fesetexceptflag(const fexcept_t *flagp, int excepts);
>>> +int __softfp_feraiseexcept(int excepts);
>>> +int __softfp_fetestexcept(int excepts);
>>> +int __softfp_fegetround(void);
>>> +int __softfp_fesetround(int round);
>>> +int __softfp_fegetenv(fenv_t *envp);
>>> +int __softfp_feholdexcept(fenv_t *envp);
>>> +int __softfp_fesetenv(const fenv_t *envp);
>>> +int __softfp_feupdateenv(const fenv_t *envp);
>>> +int __softfp_feenableexcept(int __mask);
>>> +int __softfp_fedisableexcept(int __mask);
>>> +int __softfp_fegetexcept(void);
>>> +
>>> +int __vfp_feclearexcept(int excepts);
>>> +int __vfp_fegetexceptflag(fexcept_t *flagp, int excepts);
>>> +int __vfp_fesetexceptflag(const fexcept_t *flagp, int excepts);
>>> +int __vfp_feraiseexcept(int excepts);
>>> +int __vfp_fetestexcept(int excepts);
>>> +int __vfp_fegetround(void);
>>> +int __vfp_fesetround(int round);
>>> +int __vfp_fegetenv(fenv_t *envp);
>>> +int __vfp_feholdexcept(fenv_t *envp);
>>> +int __vfp_fesetenv(const fenv_t *envp);
>>> +int __vfp_feupdateenv(const fenv_t *envp);
>>> +int __vfp_feenableexcept(int __mask);
>>> +int __vfp_fedisableexcept(int __mask);
>>> +int __vfp_fegetexcept(void);
>>> +
>>> +static int
>>> +__softfp_round_to_vfp(int round)
>>> +{
>>> +
>>> +       switch (round) {
>>> +       case FE_TONEAREST:
>>> +       default:
>>> +               return VFP_FE_TONEAREST;
>>> +       case FE_TOWARDZERO:
>>> +               return VFP_FE_TOWARDZERO;
>>> +       case FE_UPWARD:
>>> +               return VFP_FE_UPWARD;
>>> +       case FE_DOWNWARD:
>>> +               return VFP_FE_DOWNWARD;
>>> +       }
>>> +}
>>> +
>>> +static int
>>> +__softfp_round_from_vfp(int round)
>>> +{
>>> +
>>> +       switch (round) {
>>> +       case VFP_FE_TONEAREST:
>>> +       default:
>>> +               return FE_TONEAREST;
>>> +       case VFP_FE_TOWARDZERO:
>>> +               return FE_TOWARDZERO;
>>> +       case VFP_FE_UPWARD:
>>> +               return FE_UPWARD;
>>> +       case VFP_FE_DOWNWARD:
>>> +               return FE_DOWNWARD;
>>> +       }
>>> +}
>>> +
>>> +int feclearexcept(int excepts)
>>> +{
>>> +
>>> +       if (_libc_arm_fpu_present)
>>> +               __vfp_feclearexcept(excepts);
>>> +       __softfp_feclearexcept(excepts);
>>> +
>>> +       return (0);
>>> +}
>>> +
>>> +int fegetexceptflag(fexcept_t *flagp, int excepts)
>>> +{
>>> +       fexcept_t __vfp_flagp;
>>> +
>>> +       __vfp_flagp = 0;
>>> +       if (_libc_arm_fpu_present)
>>> +               __vfp_fegetexceptflag(&__vfp_flagp, excepts);
>>> +       __softfp_fegetexceptflag(flagp, excepts);
>>> +
>>> +       *flagp |= __vfp_flagp;
>>> +
>>> +       return (0);
>>> +}
>>> +
>>> +int fesetexceptflag(const fexcept_t *flagp, int excepts)
>>> +{
>>> +
>>> +       if (_libc_arm_fpu_present)
>>> +               __vfp_fesetexceptflag(flagp, excepts);
>>> +       __softfp_fesetexceptflag(flagp, excepts);
>>> +
>>> +       return (0);
>>> +}
>>> +
>>> +int feraiseexcept(int excepts)
>>> +{
>>> +
>>> +       if (_libc_arm_fpu_present)
>>> +               __vfp_feraiseexcept(excepts);
>>> +       __softfp_feraiseexcept(excepts);
>>> +
>>> +       return (0);
>>> +}
>>> +
>>> +int fetestexcept(int excepts)
>>> +{
>>> +       int __got_excepts;
>>> +
>>> +       __got_excepts = 0;
>>> +       if (_libc_arm_fpu_present)
>>> +               __got_excepts = __vfp_fetestexcept(excepts);
>>> +       __got_excepts |= __softfp_fetestexcept(excepts);
>>> +
>>> +       return (__got_excepts);
>>> +}
>>> +
>>> +int fegetround(void)
>>> +{
>>> +
>>> +       if (_libc_arm_fpu_present)
>>> +               return __softfp_round_from_vfp(__vfp_fegetround());
>>> +       return __softfp_fegetround();
>>> +}
>>> +
>>> +int fesetround(int round)
>>> +{
>>> +
>>> +       if (_libc_arm_fpu_present)
>>> +               __vfp_fesetround(__softfp_round_to_vfp(round));
>>> +       __softfp_fesetround(round);
>>> +
>>> +       return (0);
>>> +}
>>> +
>>> +int fegetenv(fenv_t *envp)
>>> +{
>>> +       fenv_t __vfp_envp;
>>> +
>>> +       __vfp_envp = 0;
>>> +       if (_libc_arm_fpu_present)
>>> +               __vfp_fegetenv(&__vfp_envp);
>>> +       __softfp_fegetenv(envp);
>>> +       *envp |= __vfp_envp;
>>> +
>>> +       return (0);
>>> +}
>>> +
>>> +int feholdexcept(fenv_t *envp)
>>> +{
>>> +       fenv_t __vfp_envp;
>>> +
>>> +       __vfp_envp = 0;
>>> +       if (_libc_arm_fpu_present)
>>> +               __vfp_feholdexcept(&__vfp_envp);
>>> +       __softfp_feholdexcept(envp);
>>> +       *envp |= __vfp_envp;
>>> +
>>> +       return (0);
>>> +}
>>> +
>>> +int fesetenv(const fenv_t *envp)
>>> +{
>>> +
>>> +       if (_libc_arm_fpu_present)
>>> +               __vfp_fesetenv(envp);
>>> +       __softfp_fesetenv(envp);
>>> +
>>> +       return (0);
>>> +}
>>> +
>>> +int feupdateenv(const fenv_t *envp)
>>> +{
>>> +
>>> +       if (_libc_arm_fpu_present)
>>> +               __vfp_feupdateenv(envp);
>>> +       __softfp_feupdateenv(envp);
>>> +
>>> +       return (0);
>>> +}
>>> +
>>> +int feenableexcept(int __mask)
>>> +{
>>> +       int __unmasked;
>>> +
>>> +       __unmasked = 0;
>>> +       if (_libc_arm_fpu_present)
>>> +               __unmasked = __vfp_feenableexcept(__mask);
>>> +       __unmasked |= __softfp_feenableexcept(__mask);
>>> +
>>> +       return (__unmasked);
>>> +}
>>> +
>>> +int fedisableexcept(int __mask)
>>> +{
>>> +       int __unmasked;
>>> +
>>> +       __unmasked = 0;
>>> +       if (_libc_arm_fpu_present)
>>> +               __unmasked = __vfp_fedisableexcept(__mask);
>>> +       __unmasked |= __softfp_fedisableexcept(__mask);
>>> +
>>> +       return (__unmasked);
>>> +}
>>> +
>>> +int fegetexcept(void)
>>> +{
>>> +       int __unmasked;
>>> +
>>> +       __unmasked = 0;
>>> +       if (_libc_arm_fpu_present)
>>> +               __unmasked = __vfp_fegetexcept();
>>> +       __unmasked |= __softfp_fegetexcept();
>>> +
>>> +       return (__unmasked);
>>> +}
>>> +
>>> +#endif
>>> +
>>> diff --git a/newlib/libm/machine/arm/feraiseexcept.c
>>> b/newlib/libm/machine/arm/feraiseexcept.c
>>> new file mode 100644
>>> index 000000000..8cbee7771
>>> --- /dev/null
>>> +++ b/newlib/libm/machine/arm/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/arm/fesetenv.c
>>> b/newlib/libm/machine/arm/fesetenv.c
>>> new file mode 100644
>>> index 000000000..8cbee7771
>>> --- /dev/null
>>> +++ b/newlib/libm/machine/arm/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/arm/fesetexceptflag.c
>>> b/newlib/libm/machine/arm/fesetexceptflag.c
>>> new file mode 100644
>>> index 000000000..8cbee7771
>>> --- /dev/null
>>> +++ b/newlib/libm/machine/arm/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/arm/fesetround.c
>>> b/newlib/libm/machine/arm/fesetround.c
>>> new file mode 100644
>>> index 000000000..8cbee7771
>>> --- /dev/null
>>> +++ b/newlib/libm/machine/arm/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/arm/fetestexcept.c
>>> b/newlib/libm/machine/arm/fetestexcept.c
>>> new file mode 100644
>>> index 000000000..8cbee7771
>>> --- /dev/null
>>> +++ b/newlib/libm/machine/arm/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/arm/feupdateenv.c
>>> b/newlib/libm/machine/arm/feupdateenv.c
>>> new file mode 100644
>>> index 000000000..8cbee7771
>>> --- /dev/null
>>> +++ b/newlib/libm/machine/arm/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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/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000008000
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/lib/libm.a(lib_a-fenv.o): in function `feraiseexcept':
/home/eshan/development/newlib/5/arm-rtems5/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/arm-rtems5/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
collect2: error: ld returned 1 exit status
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000008000
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/lib/thumb/libm.a(lib_a-fenv.o): in function `feraiseexcept':
/home/eshan/development/newlib/5/arm-rtems5/thumb/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/arm-rtems5/thumb/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
collect2: error: ld returned 1 exit status
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000008000
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000008000
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/lib/thumb/armv6-m/libm.a(lib_a-fenv-softfp.o): in function `__softfp_feraiseexcept':
/home/eshan/development/newlib/5/arm-rtems5/thumb/armv6-m/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/arm-rtems5/thumb/armv6-m/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/lib/thumb/armv6-m/libm.a(lib_a-fenv-vfp.o): in function `__vfp_feraiseexcept':
/home/eshan/development/newlib/5/arm-rtems5/thumb/armv6-m/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/arm-rtems5/thumb/armv6-m/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
collect2: error: ld returned 1 exit status
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000008000
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/lib/thumb/armv7-a/libm.a(lib_a-fenv-softfp.o): in function `__softfp_feraiseexcept':
/home/eshan/development/newlib/5/arm-rtems5/thumb/armv7-a/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/arm-rtems5/thumb/armv7-a/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/lib/thumb/armv7-a/libm.a(lib_a-fenv-vfp.o): in function `__vfp_feraiseexcept':
/home/eshan/development/newlib/5/arm-rtems5/thumb/armv7-a/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/arm-rtems5/thumb/armv7-a/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
collect2: error: ld returned 1 exit status
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000008000
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/lib/thumb/armv7-r/libm.a(lib_a-fenv-softfp.o): in function `__softfp_feraiseexcept':
/home/eshan/development/newlib/5/arm-rtems5/thumb/armv7-r/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/arm-rtems5/thumb/armv7-r/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/lib/thumb/armv7-r/libm.a(lib_a-fenv-vfp.o): in function `__vfp_feraiseexcept':
/home/eshan/development/newlib/5/arm-rtems5/thumb/armv7-r/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/arm-rtems5/thumb/armv7-r/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
collect2: error: ld returned 1 exit status
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000008000
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/lib/thumb/cortex-m3/libm.a(lib_a-fenv-softfp.o): in function `__softfp_feraiseexcept':
/home/eshan/development/newlib/5/arm-rtems5/thumb/cortex-m3/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/arm-rtems5/thumb/cortex-m3/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/lib/thumb/cortex-m3/libm.a(lib_a-fenv-vfp.o): in function `__vfp_feraiseexcept':
/home/eshan/development/newlib/5/arm-rtems5/thumb/cortex-m3/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/arm-rtems5/thumb/cortex-m3/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
collect2: error: ld returned 1 exit status
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000008000
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/lib/thumb/cortex-m4/libm.a(lib_a-fenv-softfp.o): in function `__softfp_feraiseexcept':
/home/eshan/development/newlib/5/arm-rtems5/thumb/cortex-m4/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/arm-rtems5/thumb/cortex-m4/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/lib/thumb/cortex-m4/libm.a(lib_a-fenv-vfp.o): in function `__vfp_feraiseexcept':
/home/eshan/development/newlib/5/arm-rtems5/thumb/cortex-m4/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/arm-rtems5/thumb/cortex-m4/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
collect2: error: ld returned 1 exit status
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000008000
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000008000
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000008000
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000008000
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000008000
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/lib/eb/thumb/armv7-r/libm.a(lib_a-fenv-softfp.o): in function `__softfp_feraiseexcept':
/home/eshan/development/newlib/5/arm-rtems5/eb/thumb/armv7-r/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/arm-rtems5/eb/thumb/armv7-r/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/lib/eb/thumb/armv7-r/libm.a(lib_a-fenv-vfp.o): in function `__vfp_feraiseexcept':
/home/eshan/development/newlib/5/arm-rtems5/eb/thumb/armv7-r/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: /home/eshan/development/newlib/5/arm-rtems5/eb/thumb/armv7-r/newlib/targ-include/machine/fenv-softfloat.h:92: undefined reference to `__softfloat_float_raise'
collect2: error: ld returned 1 exit status
/home/eshan/development/newlib/5/lib/gcc/arm-rtems5/7.5.0/../../../../arm-rtems5/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000008000
eshan at EDs-pc:~/development/Tools/tmulti$ 



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