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Date:      Thu, 22 Oct 2015 20:28:37 +0000 (UTC)
From:      "Conrad E. Meyer" <cem@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r289765 - in head/sys: conf libkern sys
Message-ID:  <201510222028.t9MKSbRu032869@repo.freebsd.org>

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Author: cem
Date: Thu Oct 22 20:28:37 2015
New Revision: 289765
URL: https://svnweb.freebsd.org/changeset/base/289765

Log:
  Add libkern ffsll() for parity with flsll()
  
  Sponsored by:	EMC / Isilon Storage Division
  Differential Revision:	https://reviews.freebsd.org/D3962

Added:
  head/sys/libkern/ffsll.c   (contents, props changed)
Modified:
  head/sys/conf/files.arm
  head/sys/conf/files.arm64
  head/sys/conf/files.i386
  head/sys/conf/files.mips
  head/sys/conf/files.pc98
  head/sys/conf/files.powerpc
  head/sys/conf/files.sparc64
  head/sys/sys/libkern.h

Modified: head/sys/conf/files.arm
==============================================================================
--- head/sys/conf/files.arm	Thu Oct 22 19:42:57 2015	(r289764)
+++ head/sys/conf/files.arm	Thu Oct 22 20:28:37 2015	(r289765)
@@ -120,6 +120,7 @@ libkern/ashldi3.c		standard
 libkern/ashrdi3.c		standard
 libkern/divdi3.c		standard
 libkern/ffsl.c			standard
+libkern/ffsll.c			standard
 libkern/fls.c			standard
 libkern/flsl.c			standard
 libkern/flsll.c			standard

Modified: head/sys/conf/files.arm64
==============================================================================
--- head/sys/conf/files.arm64	Thu Oct 22 19:42:57 2015	(r289764)
+++ head/sys/conf/files.arm64	Thu Oct 22 20:28:37 2015	(r289765)
@@ -82,6 +82,7 @@ kern/subr_dummy_vdso_tc.c	standard
 libkern/bcmp.c			standard
 libkern/ffs.c			standard
 libkern/ffsl.c			standard
+libkern/ffsll.c			standard
 libkern/fls.c			standard
 libkern/flsl.c			standard
 libkern/flsll.c			standard

Modified: head/sys/conf/files.i386
==============================================================================
--- head/sys/conf/files.i386	Thu Oct 22 19:42:57 2015	(r289764)
+++ head/sys/conf/files.i386	Thu Oct 22 20:28:37 2015	(r289765)
@@ -530,6 +530,7 @@ kern/imgact_aout.c		optional compat_aout
 kern/imgact_gzip.c		optional gzip
 kern/subr_sfbuf.c		standard
 libkern/divdi3.c		standard
+libkern/ffsll.c			standard
 libkern/flsll.c			standard
 libkern/memmove.c		standard
 libkern/memset.c		standard

Modified: head/sys/conf/files.mips
==============================================================================
--- head/sys/conf/files.mips	Thu Oct 22 19:42:57 2015	(r289764)
+++ head/sys/conf/files.mips	Thu Oct 22 20:28:37 2015	(r289765)
@@ -56,6 +56,7 @@ kern/subr_sfbuf.c			optional	mips | mips
 
 # gcc/clang runtime
 libkern/ffsl.c				standard
+libkern/ffsll.c				standard
 libkern/fls.c				standard
 libkern/flsl.c				standard
 libkern/flsll.c				standard

Modified: head/sys/conf/files.pc98
==============================================================================
--- head/sys/conf/files.pc98	Thu Oct 22 19:42:57 2015	(r289764)
+++ head/sys/conf/files.pc98	Thu Oct 22 20:28:37 2015	(r289765)
@@ -222,6 +222,7 @@ kern/imgact_aout.c		optional compat_aout
 kern/imgact_gzip.c		optional gzip
 kern/subr_sfbuf.c		standard
 libkern/divdi3.c		standard
+libkern/ffsll.c			standard
 libkern/flsll.c			standard
 libkern/memmove.c		standard
 libkern/memset.c		standard

Modified: head/sys/conf/files.powerpc
==============================================================================
--- head/sys/conf/files.powerpc	Thu Oct 22 19:42:57 2015	(r289764)
+++ head/sys/conf/files.powerpc	Thu Oct 22 20:28:37 2015	(r289765)
@@ -87,6 +87,7 @@ libkern/cmpdi2.c		optional	powerpc
 libkern/divdi3.c		optional	powerpc
 libkern/ffs.c			standard
 libkern/ffsl.c			standard
+libkern/ffsll.c			standard
 libkern/fls.c			standard
 libkern/flsl.c			standard
 libkern/flsll.c			standard

Modified: head/sys/conf/files.sparc64
==============================================================================
--- head/sys/conf/files.sparc64	Thu Oct 22 19:42:57 2015	(r289764)
+++ head/sys/conf/files.sparc64	Thu Oct 22 20:28:37 2015	(r289765)
@@ -67,6 +67,7 @@ kern/syscalls.c			optional	ktr
 kern/subr_sfbuf.c		standard
 libkern/ffs.c			standard
 libkern/ffsl.c			standard
+libkern/ffsll.c			standard
 libkern/fls.c			standard
 libkern/flsl.c			standard
 libkern/flsll.c			standard

Added: head/sys/libkern/ffsll.c
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/sys/libkern/ffsll.c	Thu Oct 22 20:28:37 2015	(r289765)
@@ -0,0 +1,48 @@
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  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.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/libkern.h>
+
+/*
+ * Find First Set bit
+ */
+int
+ffsll(long long mask)
+{
+	int bit;
+
+	if (mask == 0)
+		return (0);
+	for (bit = 1; !(mask & 1); bit++)
+		mask = (unsigned long long)mask >> 1;
+	return (bit);
+}

Modified: head/sys/sys/libkern.h
==============================================================================
--- head/sys/sys/libkern.h	Thu Oct 22 19:42:57 2015	(r289764)
+++ head/sys/sys/libkern.h	Thu Oct 22 20:28:37 2015	(r289765)
@@ -89,6 +89,9 @@ int	 ffs(int);
 #ifndef	HAVE_INLINE_FFSL
 int	 ffsl(long);
 #endif
+#ifndef	HAVE_INLINE_FFSLL
+int	 ffsll(long long);
+#endif
 #ifndef	HAVE_INLINE_FLS
 int	 fls(int);
 #endif



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