[PATCH 1/1] MIPS fenv support
Eshan dhawan via Newlib <[email protected]>
| Newsgroups | gmane.comp.lib.newlib |
|---|---|
| Message-ID | <[email protected]> |
Signed-off-by: Eshan dhawan <[email protected]> --- newlib/configure.host | 1 + newlib/libc/machine/mips/machine/fenv-fp.h | 207 ++++++++++++++++++ .../machine/mips/machine/fenv-softfloat.h | 182 +++++++++++++++ newlib/libc/machine/mips/sys/fenv.h | 88 ++++++++ newlib/libm/machine/configure.in | 1 + newlib/libm/machine/mips/Makefile.am | 21 ++ newlib/libm/machine/mips/configure.in | 11 + newlib/libm/machine/mips/feclearexcept.c | 7 + newlib/libm/machine/mips/fegetenv.c | 7 + newlib/libm/machine/mips/fegetexceptflag.c | 7 + newlib/libm/machine/mips/fegetround.c | 7 + newlib/libm/machine/mips/feholdexcept.c | 7 + newlib/libm/machine/mips/fenv.c | 74 +++++++ newlib/libm/machine/mips/feraiseexcept.c | 7 + newlib/libm/machine/mips/fesetenv.c | 7 + newlib/libm/machine/mips/fesetexceptflag.c | 7 + newlib/libm/machine/mips/fesetround.c | 7 + newlib/libm/machine/mips/fetestexcept.c | 7 + newlib/libm/machine/mips/feupdateenv.c | 7 + 19 files changed, 662 insertions(+) create mode 100644 newlib/libc/machine/mips/machine/fenv-fp.h create mode 100644 newlib/libc/machine/mips/machine/fenv-softfloat.h create mode 100644 newlib/libc/machine/mips/sys/fenv.h create mode 100644 newlib/libm/machine/mips/Makefile.am create mode 100644 newlib/libm/machine/mips/configure.in create mode 100644 newlib/libm/machine/mips/feclearexcept.c create mode 100644 newlib/libm/machine/mips/fegetenv.c create mode 100644 newlib/libm/machine/mips/fegetexceptflag.c create mode 100644 newlib/libm/machine/mips/fegetround.c create mode 100644 newlib/libm/machine/mips/feholdexcept.c create mode 100644 newlib/libm/machine/mips/fenv.c create mode 100644 newlib/libm/machine/mips/feraiseexcept.c create mode 100644 newlib/libm/machine/mips/fesetenv.c create mode 100644 newlib/libm/machine/mips/fesetexceptflag.c create mode 100644 newlib/libm/machine/mips/fesetround.c create mode 100644 newlib/libm/machine/mips/fetestexcept.c create mode 100644 newlib/libm/machine/mips/feupdateenv.c diff --git a/newlib/configure.host b/newlib/configure.host index a84c0c80a..dc6cff1aa 100644 --- a/newlib/configure.host +++ b/newlib/configure.host @@ -246,6 +246,7 @@ case "${host_cpu}" in machine_dir=mep ;; mips*) + libm_machine_dir=mips machine_dir=mips ;; mmix) diff --git a/newlib/libc/machine/mips/machine/fenv-fp.h b/newlib/libc/machine/mips/machine/fenv-fp.h new file mode 100644 index 000000000..5f446e395 --- /dev/null +++ b/newlib/libc/machine/mips/machine/fenv-fp.h @@ -0,0 +1,207 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 2004-2005 David Schultz <[email protected]> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +__fenv_static inline int +feclearexcept(int excepts) +{ + fexcept_t fcsr; + + excepts &= FE_ALL_EXCEPT; + __cfc1(fcsr); + fcsr &= ~(excepts | (excepts << _FCSR_CAUSE_SHIFT)); + __ctc1(fcsr); + + return (0); +} + +__fenv_static inline int +fegetexceptflag(fexcept_t *flagp, int excepts) +{ + fexcept_t fcsr; + + excepts &= FE_ALL_EXCEPT; + __cfc1(fcsr); + *flagp = fcsr & excepts; + + return (0); +} + +__fenv_static inline int +fesetexceptflag(const fexcept_t *flagp, int excepts) +{ + fexcept_t fcsr; + + excepts &= FE_ALL_EXCEPT; + __cfc1(fcsr); + fcsr &= ~excepts; + fcsr |= *flagp & excepts; + __ctc1(fcsr); + + return (0); +} + +__fenv_static inline int +feraiseexcept(int excepts) +{ + fexcept_t fcsr; + + excepts &= FE_ALL_EXCEPT; + __cfc1(fcsr); + fcsr |= excepts | (excepts << _FCSR_CAUSE_SHIFT); + __ctc1(fcsr); + + return (0); +} + +__fenv_static inline int +fetestexcept(int excepts) +{ + fexcept_t fcsr; + + excepts &= FE_ALL_EXCEPT; + __cfc1(fcsr); + + return (fcsr & excepts); +} + +__fenv_static inline int +fegetround(void) +{ + fexcept_t fcsr; + + __cfc1(fcsr); + + return (fcsr & _ROUND_MASK); +} + +__fenv_static inline int +fesetround(int rounding_mode) +{ + fexcept_t fcsr; + + if (rounding_mode & ~_ROUND_MASK) + return (-1); + + __cfc1(fcsr); + fcsr &= ~_ROUND_MASK; + fcsr |= rounding_mode; + __ctc1(fcsr); + + return (0); +} + +__fenv_static inline int +fegetenv(fenv_t *envp) +{ + + __cfc1(*envp); + + return (0); +} + +__fenv_static inline int +feholdexcept(fenv_t *envp) +{ + fexcept_t fcsr; + + __cfc1(fcsr); + *envp = fcsr; + fcsr &= ~(FE_ALL_EXCEPT | _ENABLE_MASK); + __ctc1(fcsr); + + return (0); +} + +__fenv_static inline int +fesetenv(const fenv_t *envp) +{ + + __ctc1(*envp); + + return (0); +} + +__fenv_static inline int +feupdateenv(const fenv_t *envp) +{ + fexcept_t fcsr; + + __cfc1(fcsr); + fesetenv(envp); + feraiseexcept(fcsr); + + return (0); +} +#if __BSD_VISIBLE + +/* We currently provide no external definitions of the functions below. */ + +#ifdef __mips_soft_float +int feenableexcept(int __mask); +int fedisableexcept(int __mask); +int fegetexcept(void); +#else +static inline int +feenableexcept(int __mask) +{ + fenv_t __old_fcsr, __new_fcsr; + + __cfc1(__old_fcsr); + __new_fcsr = __old_fcsr | (__mask & FE_ALL_EXCEPT) << _ENABLE_SHIFT; + __ctc1(__new_fcsr); + + return ((__old_fcsr >> _ENABLE_SHIFT) & FE_ALL_EXCEPT); +} + +static inline int +fedisableexcept(int __mask) +{ + fenv_t __old_fcsr, __new_fcsr; + + __cfc1(__old_fcsr); + __new_fcsr = __old_fcsr & ~((__mask & FE_ALL_EXCEPT) << _ENABLE_SHIFT); + __ctc1(__new_fcsr); + + return ((__old_fcsr >> _ENABLE_SHIFT) & FE_ALL_EXCEPT); +} + +static inline int +fegetexcept(void) +{ + fexcept_t fcsr; + + __cfc1(fcsr); + + return ((fcsr & _ENABLE_MASK) >> _ENABLE_SHIFT); +} + +#endif /* !__mips_soft_float */ + +#endif /* __BSD_VISIBLE */ \ No newline at end of file diff --git a/newlib/libc/machine/mips/machine/fenv-softfloat.h b/newlib/libc/machine/mips/machine/fenv-softfloat.h new file mode 100644 index 000000000..cf13e73fc --- /dev/null +++ b/newlib/libc/machine/mips/machine/fenv-softfloat.h @@ -0,0 +1,182 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 2004-2011 David Schultz <[email protected]> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +/* + * 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. + */ +#include <errno.h> +int __softfloat_float_exception_flags; +int __softfloat_float_exception_mask; +int __softfloat_float_rounding_mode; + + +__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) +{ + +return(excepts ? -ENOTSUP : 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 rounding_mode) +{ + + __softfloat_float_rounding_mode = rounding_mode; + 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/mips/sys/fenv.h b/newlib/libc/machine/mips/sys/fenv.h new file mode 100644 index 000000000..282d68c49 --- /dev/null +++ b/newlib/libc/machine/mips/sys/fenv.h @@ -0,0 +1,88 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 2004-2005 David Schultz <[email protected]> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#ifndef _SYS_FENV_H_ +#define _SYS_FENV_H_ + +#include <sys/_types.h> + +#ifndef __fenv_static +#define __fenv_static static +#endif + +typedef int fenv_t; +typedef int fexcept_t; + +/* Exception flags */ +#ifdef __mips_soft_float +#define _FPUSW_SHIFT 16 +#define FE_INVALID 0x0001 +#define FE_DIVBYZERO 0x0002 +#define FE_OVERFLOW 0x0004 +#define FE_UNDERFLOW 0x0008 +#define FE_INEXACT 0x0010 +#else +#define _FCSR_CAUSE_SHIFT 10 +#define FE_INVALID 0x0040 +#define FE_DIVBYZERO 0x0020 +#define FE_OVERFLOW 0x0010 +#define FE_UNDERFLOW 0x0008 +#define FE_INEXACT 0x0004 +#endif +#define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | \ + FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW) + +/* Rounding modes */ +#define FE_TONEAREST 0x0000 +#define FE_TOWARDZERO 0x0001 +#define FE_UPWARD 0x0002 +#define FE_DOWNWARD 0x0003 +#define _ROUND_MASK (FE_TONEAREST | FE_DOWNWARD | \ + FE_UPWARD | FE_TOWARDZERO) + + +/* Default floating-point environment */ +extern const fenv_t *_fe_dfl_env; +#define FE_DFL_ENV (_fe_dfl_env) + +/* We need to be able to map status flag positions to mask flag positions */ +#define _ENABLE_SHIFT 5 +#define _ENABLE_MASK (FE_ALL_EXCEPT << _ENABLE_SHIFT) + +#if !defined(__mips_soft_float) && !defined(__mips_hard_float) +#error compiler didnt set soft/hard float macros +#endif + +#ifndef __mips_soft_float +#define __cfc1(__fcsr) __asm __volatile("cfc1 %0, $31" : "=r" (__fcsr)) +#define __ctc1(__fcsr) __asm __volatile("ctc1 %0, $31" :: "r" (__fcsr)) +#endif + +#endif /* !_FENV_H_ */ diff --git a/newlib/libm/machine/configure.in b/newlib/libm/machine/configure.in index d4635214a..2cfbec666 100644 --- a/newlib/libm/machine/configure.in +++ b/newlib/libm/machine/configure.in @@ -33,6 +33,7 @@ if test -n "${libm_machine_dir}"; then spu) AC_CONFIG_SUBDIRS(spu) ;; riscv) AC_CONFIG_SUBDIRS(riscv) ;; x86_64) AC_CONFIG_SUBDIRS(x86_64) ;; + mips) AC_CONFIG_SUBDIRS(mips) ;; esac; if test "${use_libtool}" = "yes"; then machlib=${libm_machine_dir}/lib${libm_machine_dir}.${aext} diff --git a/newlib/libm/machine/mips/Makefile.am b/newlib/libm/machine/mips/Makefile.am new file mode 100644 index 000000000..bb142a6ce --- /dev/null +++ b/newlib/libm/machine/mips/Makefile.am @@ -0,0 +1,21 @@ +## Process this file with automake to generate Makefile.in + +INCLUDES = -I $(newlib_basedir)/../newlib/libm/common $(NEWLIB_CFLAGS) \ + $(CROSS_CFLAGS) $(TARGET_CFLAGS) + +LIB_SOURCES = \ + feclearexcept.c fegetenv.c fegetexceptflag.c \ + fegetround.c feholdexcept.c feraiseexcept.c fesetenv.c \ + fesetexceptflag.c fesetround.c fetestexcept.c feupdateenv.c \ + fenv.c + +noinst_LIBRARIES = lib.a +lib_a_SOURCES = $(LIB_SOURCES) +lib_a_CFLAGS = $(AM_CFLAGS) +lib_a_CCASFLAGS = $(AM_CCASFLAGS) +noinst_DATA = + +include $(srcdir)/../../../Makefile.shared + +ACLOCAL_AMFLAGS = -I ../../.. -I ../../../.. +CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host diff --git a/newlib/libm/machine/mips/configure.in b/newlib/libm/machine/mips/configure.in new file mode 100644 index 000000000..7a22fa31c --- /dev/null +++ b/newlib/libm/machine/mips/configure.in @@ -0,0 +1,11 @@ + +AC_PREREQ(2.59) +AC_INIT([newlib],[NEWLIB_VERSION]) +AC_CONFIG_SRCDIR([Makefile.am]) + +AC_CONFIG_AUX_DIR(../../../..) + +NEWLIB_CONFIGURE(../../..) + +AC_CONFIG_FILES([Makefile]) +AC_OUTPUT diff --git a/newlib/libm/machine/mips/feclearexcept.c b/newlib/libm/machine/mips/feclearexcept.c new file mode 100644 index 000000000..8cbee7771 --- /dev/null +++ b/newlib/libm/machine/mips/feclearexcept.c @@ -0,0 +1,7 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * (c) Copyright 2019 Joel Sherrill <[email protected]> + */ + +#include "../../fenv/fenv_stub.c" diff --git a/newlib/libm/machine/mips/fegetenv.c b/newlib/libm/machine/mips/fegetenv.c new file mode 100644 index 000000000..8cbee7771 --- /dev/null +++ b/newlib/libm/machine/mips/fegetenv.c @@ -0,0 +1,7 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * (c) Copyright 2019 Joel Sherrill <[email protected]> + */ + +#include "../../fenv/fenv_stub.c" diff --git a/newlib/libm/machine/mips/fegetexceptflag.c b/newlib/libm/machine/mips/fegetexceptflag.c new file mode 100644 index 000000000..8cbee7771 --- /dev/null +++ b/newlib/libm/machine/mips/fegetexceptflag.c @@ -0,0 +1,7 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * (c) Copyright 2019 Joel Sherrill <[email protected]> + */ + +#include "../../fenv/fenv_stub.c" diff --git a/newlib/libm/machine/mips/fegetround.c b/newlib/libm/machine/mips/fegetround.c new file mode 100644 index 000000000..8cbee7771 --- /dev/null +++ b/newlib/libm/machine/mips/fegetround.c @@ -0,0 +1,7 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * (c) Copyright 2019 Joel Sherrill <[email protected]> + */ + +#include "../../fenv/fenv_stub.c" diff --git a/newlib/libm/machine/mips/feholdexcept.c b/newlib/libm/machine/mips/feholdexcept.c new file mode 100644 index 000000000..8cbee7771 --- /dev/null +++ b/newlib/libm/machine/mips/feholdexcept.c @@ -0,0 +1,7 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * (c) Copyright 2019 Joel Sherrill <[email protected]> + */ + +#include "../../fenv/fenv_stub.c" diff --git a/newlib/libm/machine/mips/fenv.c b/newlib/libm/machine/mips/fenv.c new file mode 100644 index 000000000..6e4bb8f33 --- /dev/null +++ b/newlib/libm/machine/mips/fenv.c @@ -0,0 +1,74 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 2004 David Schultz <[email protected]> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#define __fenv_static +#include <fenv.h> +#ifndef __mips_soft_float +#include <machine/fenv-fp.h> +#endif + + +#ifdef __GNUC_GNU_INLINE__ +#error "This file must be compiled with C99 'inline' semantics" +#endif + +/* + * Hopefully the system ID byte is immutable, so it's valid to use + * this as a default environment. + */ + + +#ifdef __mips_soft_float +#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> +#endif + + + +extern inline int feclearexcept(int excepts); +extern inline int fegetexceptflag(fexcept_t *flagp, int excepts); +extern inline int fesetexceptflag(const fexcept_t *flagp, int excepts); +extern inline int feraiseexcept(int excepts); +extern inline int fetestexcept(int excepts); +extern inline int fegetround(void); +extern inline int fesetround(int rounding_mode); +extern inline int fegetenv(fenv_t *envp); +extern inline int feholdexcept(fenv_t *envp); +extern inline int fesetenv(const fenv_t *envp); +extern inline int feupdateenv(const fenv_t *envp); +extern inline int feenableexcept(int __mask); +extern inline int fedisableexcept(int __mask); +extern inline int fegetexcept(void); diff --git a/newlib/libm/machine/mips/feraiseexcept.c b/newlib/libm/machine/mips/feraiseexcept.c new file mode 100644 index 000000000..8cbee7771 --- /dev/null +++ b/newlib/libm/machine/mips/feraiseexcept.c @@ -0,0 +1,7 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * (c) Copyright 2019 Joel Sherrill <[email protected]> + */ + +#include "../../fenv/fenv_stub.c" diff --git a/newlib/libm/machine/mips/fesetenv.c b/newlib/libm/machine/mips/fesetenv.c new file mode 100644 index 000000000..8cbee7771 --- /dev/null +++ b/newlib/libm/machine/mips/fesetenv.c @@ -0,0 +1,7 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * (c) Copyright 2019 Joel Sherrill <[email protected]> + */ + +#include "../../fenv/fenv_stub.c" diff --git a/newlib/libm/machine/mips/fesetexceptflag.c b/newlib/libm/machine/mips/fesetexceptflag.c new file mode 100644 index 000000000..8cbee7771 --- /dev/null +++ b/newlib/libm/machine/mips/fesetexceptflag.c @@ -0,0 +1,7 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * (c) Copyright 2019 Joel Sherrill <[email protected]> + */ + +#include "../../fenv/fenv_stub.c" diff --git a/newlib/libm/machine/mips/fesetround.c b/newlib/libm/machine/mips/fesetround.c new file mode 100644 index 000000000..8cbee7771 --- /dev/null +++ b/newlib/libm/machine/mips/fesetround.c @@ -0,0 +1,7 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * (c) Copyright 2019 Joel Sherrill <[email protected]> + */ + +#include "../../fenv/fenv_stub.c" diff --git a/newlib/libm/machine/mips/fetestexcept.c b/newlib/libm/machine/mips/fetestexcept.c new file mode 100644 index 000000000..8cbee7771 --- /dev/null +++ b/newlib/libm/machine/mips/fetestexcept.c @@ -0,0 +1,7 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * (c) Copyright 2019 Joel Sherrill <[email protected]> + */ + +#include "../../fenv/fenv_stub.c" diff --git a/newlib/libm/machine/mips/feupdateenv.c b/newlib/libm/machine/mips/feupdateenv.c new file mode 100644 index 000000000..8cbee7771 --- /dev/null +++ b/newlib/libm/machine/mips/feupdateenv.c @@ -0,0 +1,7 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * (c) Copyright 2019 Joel Sherrill <[email protected]> + */ + +#include "../../fenv/fenv_stub.c" -- 2.17.1