riscv64: Add missing (slightly modified) fenv.h from FreeBSD
* A few tips for future folks follows. * fenv.h gets wrapped in our buildtools * If anything in the arch fenv.h "doesn't work" buildtools will silently fail early on (autotools HAVE_FENV_H) Change-Id: Icae064fde42af3bbed5ea2eadfaa8c18c677e6a6 Reviewed-on: https://review.haiku-os.org/c/haiku/+/2164 Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com> Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
This commit is contained in:
Alexander von Gluck IV
Adrien Destugues
parent
2d697067b2
commit
15fb7d88e9
262
headers/posix/arch/riscv64/fenv.h
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262
headers/posix/arch/riscv64/fenv.h
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@ -0,0 +1,262 @@
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/*-
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* Copyright (c) 2004-2005 David Schultz <das@FreeBSD.ORG>
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* Copyright (c) 2015-2016 Ruslan Bukin <br@bsdpad.com>
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* All rights reserved.
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*
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* Portions of this software were developed by SRI International and the
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* University of Cambridge Computer Laboratory under DARPA/AFRL contract
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* FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
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*
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* Portions of this software were developed by the University of Cambridge
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* Computer Laboratory as part of the CTSRD Project, with support from the
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* UK Higher Education Innovation Fund (HEIF).
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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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#ifndef _FENV_H_
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#define _FENV_H_
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#include <stdint.h>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#ifndef __fenv_static
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#define __fenv_static static
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#endif
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typedef uint64_t fenv_t;
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typedef uint64_t fexcept_t;
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/* Exception flags */
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#define FE_INVALID 0x0010
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#define FE_DIVBYZERO 0x0008
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#define FE_OVERFLOW 0x0004
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#define FE_UNDERFLOW 0x0002
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#define FE_INEXACT 0x0001
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#define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | \
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FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW)
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/*
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* RISC-V Rounding modes
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*/
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#define _ROUND_SHIFT 5
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#define FE_TONEAREST (0x00 << _ROUND_SHIFT)
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#define FE_TOWARDZERO (0x01 << _ROUND_SHIFT)
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#define FE_DOWNWARD (0x02 << _ROUND_SHIFT)
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#define FE_UPWARD (0x03 << _ROUND_SHIFT)
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#define _ROUND_MASK (FE_TONEAREST | FE_DOWNWARD | \
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FE_UPWARD | FE_TOWARDZERO)
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__BEGIN_DECLS
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/* Default floating-point environment */
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extern const fenv_t __fe_dfl_env;
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#define FE_DFL_ENV (&__fe_dfl_env)
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#if !defined(__riscv_float_abi_soft) && !defined(__riscv_float_abi_double)
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#if defined(__riscv_float_abi_single)
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#error single precision floating point ABI not supported
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#else
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#error compiler did not set soft/hard float macros
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#endif
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#endif
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#ifndef __riscv_float_abi_soft
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#define __rfs(__fcsr) __asm __volatile("csrr %0, fcsr" : "=r" (__fcsr))
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#define __wfs(__fcsr) __asm __volatile("csrw fcsr, %0" :: "r" (__fcsr))
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#endif
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#ifdef __riscv_float_abi_soft
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int feclearexcept(int __excepts);
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int fegetexceptflag(fexcept_t *__flagp, int __excepts);
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int fesetexceptflag(const fexcept_t *__flagp, int __excepts);
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int feraiseexcept(int __excepts);
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int fetestexcept(int __excepts);
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int fegetround(void);
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int fesetround(int __round);
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int fegetenv(fenv_t *__envp);
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int feholdexcept(fenv_t *__envp);
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int fesetenv(const fenv_t *__envp);
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int feupdateenv(const fenv_t *__envp);
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#else
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__fenv_static inline int
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feclearexcept(int __excepts)
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{
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__asm __volatile("csrc fflags, %0" :: "r"(__excepts));
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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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fexcept_t __fcsr;
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__rfs(__fcsr);
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*__flagp = __fcsr & __excepts;
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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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fexcept_t __fcsr;
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__fcsr = *__flagp;
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__asm __volatile("csrc fflags, %0" :: "r"(__excepts));
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__asm __volatile("csrs fflags, %0" :: "r"(__fcsr & __excepts));
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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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__asm __volatile("csrs fflags, %0" :: "r"(__excepts));
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return (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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fexcept_t __fcsr;
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__rfs(__fcsr);
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return (__fcsr & __excepts);
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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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fexcept_t __fcsr;
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__rfs(__fcsr);
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return (__fcsr & _ROUND_MASK);
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}
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__fenv_static inline int
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fesetround(int __round)
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{
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fexcept_t __fcsr;
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if (__round & ~_ROUND_MASK)
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return (-1);
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__rfs(__fcsr);
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__fcsr &= ~_ROUND_MASK;
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__fcsr |= __round;
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__wfs(__fcsr);
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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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__rfs(*__envp);
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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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/* No exception traps. */
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return (-1);
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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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__wfs(*__envp);
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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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fexcept_t __fcsr;
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__rfs(__fcsr);
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__wfs(*__envp);
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feraiseexcept(__fcsr & FE_ALL_EXCEPT);
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return (0);
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}
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#endif /* !__riscv_float_abi_soft */
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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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#ifdef __riscv_float_abi_soft
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int feenableexcept(int __mask);
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int fedisableexcept(int __mask);
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int fegetexcept(void);
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#else
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static inline int
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feenableexcept(int __mask)
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{
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/* No exception traps. */
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return (-1);
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}
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static inline int
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fedisableexcept(int __mask)
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{
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/* No exception traps. */
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return (0);
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}
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static inline int
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fegetexcept(void)
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{
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/* No exception traps. */
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return (0);
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}
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#endif /* !__riscv_float_abi_soft */
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#endif /* __BSD_VISIBLE */
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__END_DECLS
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#endif /* !_FENV_H_ */
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@ -11,6 +11,8 @@
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# include <arch/arm64/fenv.h>
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#elif defined(__POWERPC__)
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# include <arch/ppc/fenv.h>
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#elif defined(__riscv64__)
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# include <arch/riscv64/fenv.h>
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#elif defined(__sparc__)
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# include <arch/sparc64/fenv.h>
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#else
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100
src/system/libroot/posix/musl/math/riscv64/Jamfile
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100
src/system/libroot/posix/musl/math/riscv64/Jamfile
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SubDir HAIKU_TOP src system libroot posix musl math riscv64 ;
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SubDirCcFlags -Wno-unused-but-set-variable ;
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SubDirSysHdrs [ FDirName $(SUBDIR) .. .. include ] ;
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UseHeaders [ FDirName $(SUBDIR) .. .. internal ] ;
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local arch ;
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for arch in $(TARGET_ARCHS) {
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UseHeaders [ FDirName $(SUBDIR) .. .. arch $(arch) ] ;
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}
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UseHeaders [ FDirName $(SUBDIR) .. .. arch generic ] ;
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local generics =
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acos.c acosf.c acosl.c
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acosh.c acoshf.c acoshl.c
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asin.c asinf.c asinl.c
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asinh.c asinhf.c asinhl.c
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atan2.c atan2f.c atan2l.c
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atan.c atanf.c atanl.c
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atanh.c atanhf.c atanhl.c
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cbrt.c cbrtf.c cbrtl.c
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ceil.c ceilf.c ceill.c
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copysign.c copysignf.c copysignl.c
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cos.c cosf.c cosl.c __cosl.c __cos.c __cosdf.c
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cosh.c coshf.c coshl.c
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erf.c erff.c erfl.c
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exp10.c exp10f.c exp10l.c
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exp2.c exp2f.c exp2f_data.c exp2l.c
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exp.c exp_data.c expf.c expl.c
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expm1.c expm1f.c expm1l.c
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__expo2.c __expo2f.c
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fabsl.c
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fdim.c fdimf.c fdiml.c
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finite.c finitef.c
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floor.c floorf.c floorl.c
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fmal.c
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fmax.c fmaxf.c fmaxl.c
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fmin.c fminf.c fminl.c
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fmod.c fmodf.c fmodl.c
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frexp.c frexpf.c frexpl.c
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hypot.c hypotf.c hypotl.c
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ilogb.c ilogbf.c ilogbl.c
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__invtrigl.c
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j0.c j0f.c j1.c j1f.c jn.c jnf.c
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ldexp.c ldexpf.c ldexpl.c
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lgamma.c lgammaf.c lgammaf_r.c lgammal.c lgamma_r.c
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llrint.c llrintf.c llrintl.c
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llround.c llroundf.c llroundl.c
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log10.c log10f.c log10l.c
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log1p.c log1pf.c log1pl.c
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log2.c log2_data.c log2f.c log2f_data.c log2l.c
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logb.c logbf.c logbl.c
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log.c log_data.c logf.c logf_data.c logl.c
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lrint.c lrintf.c lrintl.c
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lround.c lroundf.c lroundl.c
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__math_divzero.c __math_divzerof.c __math_invalid.c __math_invalidf.c
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__math_oflow.c __math_oflowf.c __math_uflow.c __math_uflowf.c
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__math_xflow.c __math_xflowf.c
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modf.c modff.c modfl.c
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nan.c nanf.c nanl.c
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nearbyint.c nearbyintf.c nearbyintl.c
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nextafter.c nextafterf.c nextafterl.c
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nexttoward.c nexttowardf.c nexttowardl.c
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__polevll.c pow.c pow_data.c powf.c powf_data.c powl.c
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remainder.c remainderf.c remainderl.c
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__rem_pio2.c __rem_pio2f.c __rem_pio2_large.c __rem_pio2l.c
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remquo.c remquof.c remquol.c
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rint.c rintf.c rintl.c
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round.c roundf.c roundl.c
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scalb.c scalbf.c scalbln.c scalblnf.c scalblnl.c scalbn.c scalbnf.c scalbnl.c
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signgam.c
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significand.c significandf.c
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__sin.c sin.c __sinl.c sinl.c
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sincos.c sincosf.c sincosl.c
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__sindf.c sinf.c
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sinh.c sinhf.c sinhl.c
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sqrtl.c
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__tan.c tan.c __tandf.c tanf.c __tanl.c tanl.c
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tanh.c tanhf.c tanhl.c
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tgamma.c tgammaf.c tgammal.c
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trunc.c truncf.c truncl.c
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;
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local architectureObject ;
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for architectureObject in [ MultiArchSubDirSetup ] {
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on $(architectureObject) {
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local architecture = $(TARGET_PACKAGING_ARCH) ;
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MergeObject <$(architecture)>posix_musl_math.o :
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fabs.c fabsf.c
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fma.c fmaf.c
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sqrt.c sqrtf.c
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$(generics)
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;
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SEARCH on [ FGristFiles $(generics) ] = [ FDirName $(SUBDIR) .. ] ;
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}
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}
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