[PATCH 7/9] unwind: add libdw as a unwinder

[Masatake YAMATO]

Mark, thank you for replying.

> Hi,
> 
> On Fri, Mar 16, 2018 at 02:49:04AM +0900, Masatake YAMATO wrote:
>> > As this piece of code is authored by Mark Wielaard, it's likely
>> > Copyright (c) 2014 Mark Wielaard <mjw at redhat.com>
>> 
>> Yes. I referred to Mark's patch only.
>> 
>> I'm talking to Mark about re-licensing the patch of the commit (using
>> the same license of strace). After getting the permission, I will
>> update the header of my patch in v2 patct set.
> 
> Yes, that is fine.
> 
> Do note that elfutils libdw itself is distributed under the GPL/LGPL.
> 
> Cheers,
> 
> Mark


I'm thinking about putting following notice at the head
of my v2 patch. How, do you think?

========================================================
/*
* This file is mostly based on git commit
* dfefa9f057857735a073ea655f5cb34351032c8e
* of ltrace submitted by Mark Wielaard <mjw at redhat.com>.
* https://anonscm.debian.org/cgit/collab-maint/ltrace.git/commit/?id=dfefa9f057857735a07
a655f5cb34351032c8e
*
* It is re-licensed by the original author to make adapting this code
* to strace simple.
*
* NOTE: The unwinder, elfutils libdw itself is distributed under the GPL/LGPL.
*/

/*
 * Copyright (c) 2018 Mark Wielaard
 * Copyright (c) 2018 The strace developers.
 *
 * 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * 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.
 */
========================================================

Masatake YAMATO