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55a6e49a08
This Patch removes Soft Float code from MIPS. Instead It adds the soft float code from RISCV The code came from FreeBSD and assumes the FreeBSD softfp implementation not the one with GCC. That was an overlooked and fixed in the other fenv code already. Signed-off-by: Eshan Dhawan <eshandhawan51@gmail.com>
170 lines
3.8 KiB
C
170 lines
3.8 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2004-2011 David Schultz <das@FreeBSD.ORG>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* This file implements the functionality of <fenv.h> on platforms that
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* lack an FPU and use softfloat in libc for floating point. To use it,
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* you must write an <fenv.h> that provides the following:
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*
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* - a typedef for fenv_t, which may be an integer or struct type
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* - a typedef for fexcept_t (XXX This file assumes fexcept_t is a
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* simple integer type containing the exception mask.)
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* - definitions of FE_* constants for the five exceptions and four
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* rounding modes in IEEE 754, as described in fenv(3)
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* - a definition, and the corresponding external symbol, for FE_DFL_ENV
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* - a macro __set_env(env, flags, mask, rnd), which sets the given fenv_t
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* from the exception flags, mask, and rounding mode
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* - macros __env_flags(env), __env_mask(env), and __env_round(env), which
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* extract fields from an fenv_t
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* - a definition of __fenv_static
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*
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* If the architecture supports an optional FPU, it's recommended that you
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* define fenv_t and fexcept_t to match the hardware ABI. Otherwise, it
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* doesn't matter how you define them.
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*/
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#include <errno.h>
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__fenv_static inline int
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feclearexcept(int excepts)
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{
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return (0);
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}
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__fenv_static inline int
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fegetexceptflag(fexcept_t *flagp, int excepts)
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{
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return (0);
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}
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__fenv_static inline int
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fesetexceptflag(const fexcept_t *flagp, int excepts)
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{
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return (0);
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}
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__fenv_static inline int
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feraiseexcept(int excepts)
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{
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return( excepts != 0 );
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}
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__fenv_static inline int
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fetestexcept(int excepts)
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{
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return (0);
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}
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__fenv_static inline int
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fegetround(void)
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{
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#ifdef FE_TONEAREST
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return FE_TONEAREST;
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#else
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return 0;
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#endif
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}
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__fenv_static inline int
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fesetround(int rounding_mode)
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{
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return (0);
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}
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__fenv_static inline int
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fegetenv(fenv_t *envp)
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{
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return (0);
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}
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__fenv_static inline int
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feholdexcept(fenv_t *envp)
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{
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return (0);
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}
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__fenv_static inline int
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fesetenv(const fenv_t *envp)
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{
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return (0);
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}
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__fenv_static inline int
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feupdateenv(const fenv_t *envp)
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{
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#if defined FE_NOMASK_ENV && FE_ALL_EXCEPT != 0
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if (envp == FE_NOMASK_ENV)
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return 1;
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#endif
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return (0);
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}
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#if __BSD_VISIBLE
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/* We currently provide no external definitions of the functions below. */
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__fenv_static inline int
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feenableexcept(int __mask)
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{
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return (0);
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}
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__fenv_static inline int
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fedisableexcept(int __mask)
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{
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return (0);
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}
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__fenv_static inline int
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fegetexcept(void)
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{
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return (0);
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}
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#endif /* __BSD_VISIBLE */
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