From fd03461a93f2e080e317da40dc4929ee437ffb76 Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Sat, 28 Mar 2009 05:22:30 +0000 Subject: * ffsll.c: New file. * configure.ac: Call AC_REPLACE_FUNCS on ffsll. * gold.h (ffsll): Declare if HAVE_FFSLL is not defined. * ftruncate.c (ftruncate): Declare before definition. * mremap.c (mremap): Likewise. * pread.c (pread): Likewise. * configure, Makefile.in, config.in: Rebuild. --- gold/ffsll.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 gold/ffsll.c (limited to 'gold/ffsll.c') diff --git a/gold/ffsll.c b/gold/ffsll.c new file mode 100644 index 0000000..aeae845 --- /dev/null +++ b/gold/ffsll.c @@ -0,0 +1,43 @@ +/* ffsll.c -- version of ffsll for gold. */ + +/* Copyright 2009 Free Software Foundation, Inc. + Written by Ian Lance Taylor . + + This file is part of gold. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "config.h" + +#include + +extern int ffsll (long long); + +/* This file implements ffsll for systems which don't have it. We use + ffsll if possible because gcc supports it as a builtin which will + use a machine instruction if there is one. */ + +int +ffsll (long long arg) +{ + unsigned long long i; + int ret; + + ret = 0; + for (i = (unsigned long long) arg; i != 0; i >>= 1) + ++ret; + return ret; +} -- cgit v1.1