Marc Jones (marc.jones@se-eng.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/8118
-gerrit
commit 58c49da0dd4b411edfa03ba8d7cfaecfe7ab9142 Author: Julius Werner jwerner@chromium.org Date: Wed Jun 11 14:16:35 2014 -0700
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 --- payloads/libpayload/Config.in | 9 + payloads/libpayload/LICENSES | 23 +- payloads/libpayload/LICENSE_GPL | 345 +++++++++++++++++++++++ payloads/libpayload/arch/arm/Makefile.inc | 5 +- payloads/libpayload/arch/arm/selfboot.c | 37 +-- payloads/libpayload/arch/x86/Makefile.inc | 5 +- payloads/libpayload/arch/x86/selfboot.c | 38 +-- payloads/libpayload/configs/config.arm64-generic | 3 +- payloads/libpayload/configs/defconfig | 1 + payloads/libpayload/configs/defconfig-arm | 3 +- 10 files changed, 432 insertions(+), 37 deletions(-)
diff --git a/payloads/libpayload/Config.in b/payloads/libpayload/Config.in index dc18faf..6dce181 100644 --- a/payloads/libpayload/Config.in +++ b/payloads/libpayload/Config.in @@ -32,6 +32,15 @@ mainmenu "Libpayload Configuration"
menu "Generic Options"
+config GPL + bool "GPLv2-licensed Options" + default n + help + Prompt for options that will build code licensed under the GNU General + Public License (version 2). This will subject the whole payload to the + terms of this license (including its provision to release all sources, + please see the LICENSE_GPL file for details). + config EXPERIMENTAL bool "Experimental Options" default n diff --git a/payloads/libpayload/LICENSES b/payloads/libpayload/LICENSES index 4938892..f340ead 100644 --- a/payloads/libpayload/LICENSES +++ b/payloads/libpayload/LICENSES @@ -34,8 +34,20 @@ BSD license:
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 below for an overview of third-party code in libpayload. +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 ------------------------------------- @@ -110,3 +122,12 @@ holders, and the exact license terms that apply. 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 diff --git a/payloads/libpayload/LICENSE_GPL b/payloads/libpayload/LICENSE_GPL new file mode 100644 index 0000000..2686f8d --- /dev/null +++ b/payloads/libpayload/LICENSE_GPL @@ -0,0 +1,345 @@ +This file reproduces the full text of the GNU General Public License +(version 2). Please note that only parts of libpayload are subject to +this license, which are guarded by the CONFIG_GPL Kconfig option. See +the LICENSES file for details. + + + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Lesser General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. 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Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + <signature of Ty Coon>, 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. diff --git a/payloads/libpayload/arch/arm/Makefile.inc b/payloads/libpayload/arch/arm/Makefile.inc index 7009884..41bf734 100644 --- a/payloads/libpayload/arch/arm/Makefile.inc +++ b/payloads/libpayload/arch/arm/Makefile.inc @@ -35,10 +35,13 @@ libc-y += eabi_compat.c libc-y += main.c sysinfo.c libc-y += timer.c coreboot.c util.S libc-y += virtual.c -libc-y += memcpy.S memset.S memmove.S libc-y += exception_asm.S exception.c libc-y += cache.c cpu.S libc-y += selfboot.c + +# Will fall back to default_memXXX() in libc/memory.c if GPL not allowed. +libc-$(CONFIG_LP_GPL) += memcpy.S memset.S memmove.S + libcbfs-$(CONFIG_LP_CBFS) += dummy_media.c
# Add other classes here when you put assembly files into them! diff --git a/payloads/libpayload/arch/arm/selfboot.c b/payloads/libpayload/arch/arm/selfboot.c index cbb7ef1..70cc79e 100644 --- a/payloads/libpayload/arch/arm/selfboot.c +++ b/payloads/libpayload/arch/arm/selfboot.c @@ -1,23 +1,28 @@ /* * Copyright 2014 Google Inc. * - * See file CREDITS for list of people who contributed to this - * project. + * 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 program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but without any warranty; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * 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. */
#include <libpayload.h> diff --git a/payloads/libpayload/arch/x86/Makefile.inc b/payloads/libpayload/arch/x86/Makefile.inc index d9cc19e..503901d 100644 --- a/payloads/libpayload/arch/x86/Makefile.inc +++ b/payloads/libpayload/arch/x86/Makefile.inc @@ -32,9 +32,12 @@ libc-y += main.c sysinfo.c libc-y += timer.c coreboot.c util.S libc-y += exec.S virtual.c libc-y += selfboot.c -libc-y += string.c libc-y += exception_asm.S exception.c
+# Will fall back to default_memXXX() in libc/memory.c if GPL not allowed. +libc-$(CONFIG_LP_GPL) += string.c + + libcbfs-$(CONFIG_LP_CBFS) += rom_media.c
# Multiboot support is configurable diff --git a/payloads/libpayload/arch/x86/selfboot.c b/payloads/libpayload/arch/x86/selfboot.c index fc89859..5c3e445 100644 --- a/payloads/libpayload/arch/x86/selfboot.c +++ b/payloads/libpayload/arch/x86/selfboot.c @@ -1,24 +1,30 @@ /* * Copyright 2014 Google Inc. * - * See file CREDITS for list of people who contributed to this - * project. + * 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 program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but without any warranty; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * 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. */ + #include <libpayload.h>
void selfboot(void *entry) diff --git a/payloads/libpayload/configs/config.arm64-generic b/payloads/libpayload/configs/config.arm64-generic index 8ed65f1..97d865b 100644 --- a/payloads/libpayload/configs/config.arm64-generic +++ b/payloads/libpayload/configs/config.arm64-generic @@ -1,12 +1,13 @@ # # Automatically generated make config: don't edit # libpayload version: 0.2.0 -# Wed Dec 31 11:29:14 2014 +# Mon Jan 5 15:06:47 2015 #
# # Generic Options # +# CONFIG_LP_GPL is not set # CONFIG_LP_EXPERIMENTAL is not set # CONFIG_LP_OBSOLETE is not set # CONFIG_LP_DEVELOPER is not set diff --git a/payloads/libpayload/configs/defconfig b/payloads/libpayload/configs/defconfig index 0a52272..1fbd961 100644 --- a/payloads/libpayload/configs/defconfig +++ b/payloads/libpayload/configs/defconfig @@ -7,6 +7,7 @@ # # Generic Options # +# CONFIG_LP_GPL is not set # CONFIG_LP_EXPERIMENTAL is not set # CONFIG_LP_OBSOLETE is not set # CONFIG_LP_DEVELOPER is not set diff --git a/payloads/libpayload/configs/defconfig-arm b/payloads/libpayload/configs/defconfig-arm index 235220c..862443d 100644 --- a/payloads/libpayload/configs/defconfig-arm +++ b/payloads/libpayload/configs/defconfig-arm @@ -1,12 +1,13 @@ # # Automatically generated make config: don't edit # libpayload version: 0.2.0 -# Wed Dec 31 11:39:10 2014 +# Mon Jan 5 15:06:15 2015 #
# # Generic Options # +# CONFIG_LP_GPL is not set # CONFIG_LP_EXPERIMENTAL is not set # CONFIG_LP_OBSOLETE is not set # CONFIG_LP_DEVELOPER is not set