22adcd67a2
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 d8e5a9fdf5)
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>
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-------------------------------------------------------------------------------
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Copyright and Licenses
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-------------------------------------------------------------------------------
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The copyright on libpayload is owned by various individual developers
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and/or companies. Please check the individual source files for details.
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The libpayload code is mostly licensed under the terms of the three-clause
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BSD license:
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. The name of the author may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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For some parts, which were taken from external projects, other (compatible)
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licenses may apply. Please check the individual source files for details,
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or see the section at the bottom of this file for an overview of third-party
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code in libpayload.
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Some parts of libpayload are licensed under the GNU General Public License
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(version 2). These parts are clearly separated by the CONFIG_GPL Kconfig
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option (default off), and will not be linked into the output payload unless
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that option has been chosen. The full text of that license is provided in the
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LICENSE_GPL file.
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(Please note that the coreboot project makes a best effort to keep licensing
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information up to date and accurate, but provides no legal guarantees to that
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regard. If you redistribute libpayload code in source or binary form, it is
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your liability to ensure that you conform to all legal requirements that this
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might entail.)
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Third-party Code and License Overview
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-------------------------------------
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This is an overview of (modified or unmodified) third-party code in
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libpayload, and where it was originally taken from.
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Please check the individual source code files for the list of copyright
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holders, and the exact license terms that apply.
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* util/kconfig/*: GPLv2
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Source: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
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Current version we use: 587c90616a5b44e6ccfac38e64d4fecee51d588c (03/2008)
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* include/curses.priv.h: BSD-like license
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Source: ncurses, http://www.gnu.org/software/ncurses/
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Original files: ncurses/curses.priv.h
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Current version we use: 5.6
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* include/curses.h: BSD-like license
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Source: ncurses, http://www.gnu.org/software/ncurses/
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Original files: include/curses.h.in
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Current version we use: 5.6
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* include/lar.h: GPLv2 or revised BSD license
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Source: coreboot v3, svn://coreboot.org/repository/coreboot-v3
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Original file: util/lar/lar.h
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Current version we use: r647
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* libc/ipchecksum.c: 2-clause BSD license
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Source: FreeBSD's base system libraries, http://www.freebsd.org
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http://www.freebsd.org/cgi/cvsweb.cgi/src/lib/libalias/Attic/alias_util.c?rev=1.15;content-type=text%2Fplain
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Original files: lib/libalias/alias_util.c, function LibAliasInternetChecksum()
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Current version we use: CVS revision 1.15 2004/07/06 12:13:28
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* libc/rand.c: 3-clause BSD license
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Source: OpenBSD
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http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/rand.c
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Original files: src/lib/libc/stdlib/rand.c
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Current version we use: CVS revision 1.9 2005/8/8 08:05:37
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* libc/memory.c: 3-clause BSD license
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Source: HelenOS, http://www.helenos.eu
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svn checkout svn://svn.helenos.eu/HelenOS/trunk HelenOS
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http://svn.helenos.eu/chora/browse.php?f=%2Ftrunk%2F
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Original files: uspace/libc/generic/string.c
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Current version we use: r2754
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* libc/printf.c: 3-clause BSD license
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Source: HelenOS, http://www.helenos.eu
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svn checkout svn://svn.helenos.eu/HelenOS/trunk HelenOS
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http://svn.helenos.eu/chora/browse.php?f=%2Ftrunk%2F
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Original files: kernel/generic/src/printf/printf_core.c
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kernel/generic/src/printf/snprintf.c
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kernel/generic/src/printf/sprintf.c
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kernel/generic/src/printf/vsnprintf.c
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kernel/generic/src/printf/vsprintf.c
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kernel/generic/src/printf/printf.c
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kernel/generic/src/printf/vprintf.c
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Current version we use: r2745
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* drivers/video/font8x16.c: 3-clause BSD license
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Source: HelenOS, http://www.helenos.eu
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svn checkout svn://svn.helenos.eu/HelenOS/trunk HelenOS
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http://svn.helenos.eu/chora/browse.php?f=%2Ftrunk%2F
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Original file: kernel/genarch/src/fb/font-8x16.c
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Current version we use: r3293
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* crypto/sha1.c: Public domain
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Source: OpenBSD
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http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/hash/sha1.c
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Original files: src/lib/libc/hash/sha1.c
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Current version we use: CVS revision 1.20 2005/08/08
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* arch/arm/mem*.S: GPLv2
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Source: Linux, http://www.kernel.org
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Original files: arch/arm/lib/mem*.S
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Current version we use: 3.9 (418df63adac56841ef6b0f1fcf435bc64d4ed177)
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* arch/x86/string.c: LGPLv2.1, modified to GPLv2 under the terms of section 3
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Source: GNU C Library (glibc), http://www.gnu.org/software/libc/libc.html
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Original files: sysdeps/i386/memset.c
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Current version we use: 2.14
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