From c30c1fce90943b168ce91a38c5071a13dfbe7361 Mon Sep 17 00:00:00 2001 From: deraadt Date: Sat, 19 Jun 2021 18:43:28 +0000 Subject: [PATCH] C version of fabs(), for now turns out same as a diff drahn didn't commit ok kettenis --- lib/libc/arch/riscv64/gen/Makefile.inc | 4 +-- lib/libc/arch/riscv64/gen/fabs.c | 35 ++++++++++++++++++++++++++ 2 files changed, 37 insertions(+), 2 deletions(-) create mode 100644 lib/libc/arch/riscv64/gen/fabs.c diff --git a/lib/libc/arch/riscv64/gen/Makefile.inc b/lib/libc/arch/riscv64/gen/Makefile.inc index 7bbb5508478..e251b496848 100644 --- a/lib/libc/arch/riscv64/gen/Makefile.inc +++ b/lib/libc/arch/riscv64/gen/Makefile.inc @@ -1,10 +1,10 @@ -# $OpenBSD: Makefile.inc,v 1.1 2021/04/29 18:37:19 drahn Exp $ +# $OpenBSD: Makefile.inc,v 1.2 2021/06/19 18:43:28 deraadt Exp $ SRCS+= ldexp.c SRCS+= infinity.c modf.c nan.c SRCS+= flt_rounds.c SRCS+= fpclassifyl.c SRCS+= fpgetmask.c fpgetround.c fpgetsticky.c SRCS+= fpsetmask.c fpsetround.c fpsetsticky.c -SRCS+= usertc.c +SRCS+= fabs.c usertc.c SRCS+= setjmp.S _setjmp.S sigsetjmp.S SRCS+= isnanl.c signbitl.c isfinitel.c isinfl.c isnormall.c diff --git a/lib/libc/arch/riscv64/gen/fabs.c b/lib/libc/arch/riscv64/gen/fabs.c new file mode 100644 index 00000000000..dcd2532cecd --- /dev/null +++ b/lib/libc/arch/riscv64/gen/fabs.c @@ -0,0 +1,35 @@ +/* $OpenBSD: fabs.c,v 1.1 2021/06/19 18:43:28 deraadt Exp $ */ +/* + * Copyright (c) 2008 Martynas Venckus + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include +#include + +/* + * fabs(d) returns the absolute value of d. + */ +double +fabs(double d) +{ + struct ieee_double *p = (struct ieee_double *)&d; + + p->dbl_sign = 0; + + return(d); +} + +__strong_alias(fabsl, fabs); -- 2.20.1