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coreboot-kgpe-d16/payloads/libpayload/LICENSES
Julius Werner 22adcd67a2 libpayload: Introduce new Kconfig to explicitly allow GPL code 
There have been leaks of GPL code into libpayload for a while now, for
new features or improvements that require third party code with no
adequate alternative among BSD-licensed software. It seems silly and
counter-productive to keep holding back features and performance
improvements from libpayload for a use-case (proprietary payloads) that
doesn't even seem to be implemented anywhere to date. Open-source
payloads should not need to suffer to appease commercial ones.

Instead, this patch introduces a new Kconfig option to explicitly allow
inclusion of GPL code. It will use Kconfig dependencies and/or Makefile
rules to ensure that no GPL code can end up in the final payload if that
option is unset, allowing proprietary payloads to keep working with the
existing BSD-licensed feature set. New features and patches (that are
sufficiently separate and self-contained to allow guarding through this
config option) can choose whether to import GPL code, and need to depend
on this option if they do.

Also clean up all (known) existing uses of GPL code to depend on the new
option, add some recent third-party imports to the LICENSES file, and
relicense the selfboot.c files to BSD with permission of the author.

BUG=chrome-os-partner:24957
TEST=Compiled Falco and Nyan_Big both with and without the new option,
disassembled output binaries to ensure that memcpy() looks as expected.

Original-Change-Id: I6e3a75b1a8e46291c75a876844c7a01f7d3f2a0e
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/203513
Original-Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
(cherry picked from commit d8e5a9fdf583b5ac861f34baea6a16c4d8536512)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I446fef028264c793b946dd9f765e446bf708b4db
Reviewed-on: http://review.coreboot.org/8118
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2015-01-09 07:06:27 +01:00

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-------------------------------------------------------------------------------
Copyright and Licenses
-------------------------------------------------------------------------------
The copyright on libpayload is owned by various individual developers
and/or companies. Please check the individual source files for details.
The libpayload code is mostly licensed under the terms of the three-clause
BSD license:
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 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 AUTHOR 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.
For some parts, which were taken from external projects, other (compatible)
licenses may apply. Please check the individual source files for details,
or see the section at the bottom of this file for an overview of third-party
code in libpayload.
Some parts of libpayload are licensed under the GNU General Public License
(version 2). These parts are clearly separated by the CONFIG_GPL Kconfig
option (default off), and will not be linked into the output payload unless
that option has been chosen. The full text of that license is provided in the
LICENSE_GPL file.
(Please note that the coreboot project makes a best effort to keep licensing
information up to date and accurate, but provides no legal guarantees to that
regard. If you redistribute libpayload code in source or binary form, it is
your liability to ensure that you conform to all legal requirements that this
might entail.)
Third-party Code and License Overview
-------------------------------------
This is an overview of (modified or unmodified) third-party code in
libpayload, and where it was originally taken from.
Please check the individual source code files for the list of copyright
holders, and the exact license terms that apply.
* util/kconfig/*: GPLv2
Source: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Current version we use: 587c90616a5b44e6ccfac38e64d4fecee51d588c (03/2008)
* include/curses.priv.h: BSD-like license
Source: ncurses, http://www.gnu.org/software/ncurses/
Original files: ncurses/curses.priv.h
Current version we use: 5.6
* include/curses.h: BSD-like license
Source: ncurses, http://www.gnu.org/software/ncurses/
Original files: include/curses.h.in
Current version we use: 5.6
* include/lar.h: GPLv2 or revised BSD license
Source: coreboot v3, svn://coreboot.org/repository/coreboot-v3
Original file: util/lar/lar.h
Current version we use: r647
* libc/ipchecksum.c: 2-clause BSD license
Source: FreeBSD's base system libraries, http://www.freebsd.org
http://www.freebsd.org/cgi/cvsweb.cgi/src/lib/libalias/Attic/alias_util.c?rev=1.15;content-type=text%2Fplain
Original files: lib/libalias/alias_util.c, function LibAliasInternetChecksum()
Current version we use: CVS revision 1.15 2004/07/06 12:13:28
* libc/rand.c: 3-clause BSD license
Source: OpenBSD
http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/rand.c
Original files: src/lib/libc/stdlib/rand.c
Current version we use: CVS revision 1.9 2005/8/8 08:05:37
* libc/memory.c: 3-clause BSD license
Source: HelenOS, http://www.helenos.eu
svn checkout svn://svn.helenos.eu/HelenOS/trunk HelenOS
http://svn.helenos.eu/chora/browse.php?f=%2Ftrunk%2F
Original files: uspace/libc/generic/string.c
Current version we use: r2754
* libc/printf.c: 3-clause BSD license
Source: HelenOS, http://www.helenos.eu
svn checkout svn://svn.helenos.eu/HelenOS/trunk HelenOS
http://svn.helenos.eu/chora/browse.php?f=%2Ftrunk%2F
Original files: kernel/generic/src/printf/printf_core.c
kernel/generic/src/printf/snprintf.c
kernel/generic/src/printf/sprintf.c
kernel/generic/src/printf/vsnprintf.c
kernel/generic/src/printf/vsprintf.c
kernel/generic/src/printf/printf.c
kernel/generic/src/printf/vprintf.c
Current version we use: r2745
* drivers/video/font8x16.c: 3-clause BSD license
Source: HelenOS, http://www.helenos.eu
svn checkout svn://svn.helenos.eu/HelenOS/trunk HelenOS
http://svn.helenos.eu/chora/browse.php?f=%2Ftrunk%2F
Original file: kernel/genarch/src/fb/font-8x16.c
Current version we use: r3293
* crypto/sha1.c: Public domain
Source: OpenBSD
http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/hash/sha1.c
Original files: src/lib/libc/hash/sha1.c
Current version we use: CVS revision 1.20 2005/08/08
* arch/arm/mem*.S: GPLv2
Source: Linux, http://www.kernel.org
Original files: arch/arm/lib/mem*.S
Current version we use: 3.9 (418df63adac56841ef6b0f1fcf435bc64d4ed177)
* arch/x86/string.c: LGPLv2.1, modified to GPLv2 under the terms of section 3
Source: GNU C Library (glibc), http://www.gnu.org/software/libc/libc.html
Original files: sysdeps/i386/memset.c
Current version we use: 2.14
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