225 lines
9.0 KiB
Plaintext
225 lines
9.0 KiB
Plaintext
Legal Information
|
|
=================
|
|
|
|
The Sortix Math Library (libm) is based on the NetBSD Math Library, with pieces
|
|
taken from the NetBSD C library and kernel. The upstream sources were adapted
|
|
for inclusion into the Sortix operating system. The library itself is licensed
|
|
under various BSD-style licenses with some parts in the public domain. Almost
|
|
all files have proper copyright notices that describe their license and who the
|
|
copyright belongs to. The few files that do not contain such explicit notices
|
|
are likely NetBSD-licensed as the files originate come from that project.
|
|
|
|
This library is licensed under the following licenses.
|
|
|
|
Public Domain
|
|
-------------
|
|
|
|
The public domain files usually contains statements such as:
|
|
|
|
/*
|
|
* Written by J.T. Conklin <jtc@NetBSD.org>.
|
|
* Public domain.
|
|
*/
|
|
|
|
This may be slightly problematic as the concept of public domain doesn't exist
|
|
in all jurisdictions.
|
|
|
|
Winning Strategies
|
|
------------------
|
|
|
|
A few files currently still contain advertisement clauses. In particular, these
|
|
files require attribution of Winning Strategies:
|
|
|
|
* arch/i387/e_exp.S
|
|
* arch/x86_64/e_exp.S
|
|
|
|
However, the author of those files have released a lot of similar files into the
|
|
public domain that once had this license. It's likely that these files were
|
|
overlooked when the license was changed and their license was changed as well.
|
|
|
|
University of California License
|
|
--------------------------------
|
|
|
|
Some of the files originate back from the Berkeley Software Distribution (BSD).
|
|
These originally contained the advertisement clause, which was deleted entirely
|
|
in 1999 by the university. The license for these files today is something like:
|
|
|
|
/*-
|
|
* Copyright (c) 1990 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.
|
|
* 3. 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.
|
|
*
|
|
* @(#)asm.h 5.5 (Berkeley) 5/7/91
|
|
*/
|
|
|
|
|
|
Lawrence Berkeley Laboratory
|
|
----------------------------
|
|
|
|
A few files contain the above University of California License as well as this
|
|
additional statement
|
|
|
|
* This software was developed by the Computer Systems Engineering group
|
|
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
|
|
* contributed to Berkeley.
|
|
|
|
Historically, the files that contained this statement also had another
|
|
advertisement statement, but these were deleted in the NetBSD sources.
|
|
|
|
SunPro License
|
|
--------------
|
|
|
|
A lot of files were developed by SunPro and bear this permissive license:
|
|
|
|
/*
|
|
* ====================================================
|
|
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
|
*
|
|
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
|
* Permission to use, copy, modify, and distribute this
|
|
* software is freely granted, provided that this notice
|
|
* is preserved.
|
|
* ====================================================
|
|
*/
|
|
|
|
CMU License
|
|
-----------
|
|
|
|
The file src/modf_ieee754.c has the following license:
|
|
|
|
/*
|
|
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
|
|
* All rights reserved.
|
|
*
|
|
* Author: Chris G. Demetriou
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and
|
|
* its documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
|
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie the
|
|
* rights to redistribute these changes.
|
|
*/
|
|
|
|
The wording of the last clause is a bit worrying, as I am not sure whether it is
|
|
a requirement or whether granting such rights is optional. Perhaps this file
|
|
should be replaced.
|
|
|
|
NetBSD License
|
|
--------------
|
|
|
|
A lot of the files originate from the NetBSD project and bear its standard
|
|
license (Simplified BSD License). These files contain statements much like this:
|
|
|
|
/*-
|
|
* Copyright (c) 2003 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Klaus Klein.
|
|
*
|
|
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
*/
|
|
|
|
A few files that was copied from upstream NetBSD bear no license but contain
|
|
the usual $NetBSD revision control tag - those can probably be assumed to be
|
|
under this license.
|
|
|
|
Other BSD-Licenses
|
|
------------------
|
|
|
|
A few files are BSD-style licensed, but don't originate with NetBSD. The license
|
|
is identical to the NetBSD license in almost every case. These files are
|
|
copyrighted by:
|
|
|
|
* David Schultz
|
|
* Steven G. Kargl
|
|
* Matthias Drochner
|
|
|
|
Sortix Math Library License
|
|
---------------------------
|
|
|
|
The library was modified to adapt it to the Sortix operating system. These
|
|
changes were intended to be licensed like the rest of the library, and so the
|
|
license is identical to the NetBSD license:
|
|
|
|
/*-
|
|
* Copyright (c) 2013 Jonas 'Sortie' Termansen.
|
|
* 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 ``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 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.
|
|
*/
|