From 041cdc2769407c4d3869b218ad7ee7638e1c306e Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Wed, 24 May 2017 20:49:02 +0200 Subject: sparc64: add basic support No NPTL, no LDSO support. Bootup with Busybox Ash in Qemu working. Testuite shows only two failures, but mksh continue/break support doesn't work. --- libc/sysdeps/linux/sparc64/soft-fp/s_scalbnl.c | 52 ++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 libc/sysdeps/linux/sparc64/soft-fp/s_scalbnl.c (limited to 'libc/sysdeps/linux/sparc64/soft-fp/s_scalbnl.c') diff --git a/libc/sysdeps/linux/sparc64/soft-fp/s_scalbnl.c b/libc/sysdeps/linux/sparc64/soft-fp/s_scalbnl.c new file mode 100644 index 000000000..c686175e9 --- /dev/null +++ b/libc/sysdeps/linux/sparc64/soft-fp/s_scalbnl.c @@ -0,0 +1,52 @@ +/* Software floating-point emulation. + scalbnl(x, exp) + Copyright (C) 1999-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +/* + * scalbnl (long double x, int n) + * scalbnl(x,n) returns x* 2**n computed by exponent + * manipulation rather than by actually performing an + * exponentiation or a multiplication. + */ + +#include "soft-fp.h" +#include "quad.h" + +long double __scalbnl(long double arg, int exp) +{ + FP_DECL_EX; + FP_DECL_Q(A); + long double r; + + FP_UNPACK_Q(A, arg); + switch (A_c) + { + case FP_CLS_ZERO: + return arg; + case FP_CLS_NAN: + case FP_CLS_INF: + FP_HANDLE_EXCEPTIONS; + return arg; + } + A_e += exp; + FP_PACK_Q(r, A); + FP_HANDLE_EXCEPTIONS; + + return r; +} -- cgit v1.2.3