diff options
| -rw-r--r-- | src/Makefile | 1 | ||||
| -rw-r--r-- | src/Makefile.housekeeping | 20 | ||||
| -rwxr-xr-x | src/util/licence.pl | 124 |
3 files changed, 144 insertions, 1 deletions
diff --git a/src/Makefile b/src/Makefile index 4e4fd8b5..add582a2 100644 --- a/src/Makefile +++ b/src/Makefile @@ -36,6 +36,7 @@ MAKEROM := $(PERL) ./util/makerom.pl SYMCHECK := $(PERL) ./util/symcheck.pl SORTOBJDUMP := $(PERL) ./util/sortobjdump.pl PADIMG := $(PERL) ./util/padimg.pl +LICENCE := $(PERL) ./util/licence.pl NRV2B := ./util/nrv2b ZBIN := ./util/zbin ELF2EFI32 := ./util/elf2efi32 diff --git a/src/Makefile.housekeeping b/src/Makefile.housekeeping index 45020179..e886c4b2 100644 --- a/src/Makefile.housekeeping +++ b/src/Makefile.housekeeping @@ -672,13 +672,31 @@ $(BIN)/%.deps : $(BIN)/%.tmp # Get unneeded source files for the specified target # define nodeps_list - $(sort $(filter-out $(call deps_list,$<),\ + $(sort $(filter-out $(call deps_list,$(1)),\ $(foreach BOBJ,$(BOBJS),\ $($(basename $(notdir $(BOBJ)))_DEPS)))) endef $(BIN)/%.nodeps : $(BIN)/%.tmp $(Q)$(ECHO) $(call nodeps_list,$<) +# Get licensing verdict for the specified target +# +define unlicensed_deps_list + $(shell grep -L FILE_LICENCE $(call deps_list,$(1))) +endef +define licence_list + $(patsubst __licence_%,%,\ + $(filter __licence_%,$(shell $(NM) $(1) | cut -d" " -f3))) +endef +$(BIN)/%.licence : $(BIN)/%.tmp + $(QM)$(ECHO) " [LICENCE] $@" + $(Q)$(if $(strip $(call unlicensed_deps_list,$<)),\ + echo -n "Unable to determine licence because the following " ;\ + echo "files are missing a licence declaration:" ;\ + echo $(call unlicensed_deps_list,$<);\ + exit 1,\ + $(LICENCE) $(call licence_list,$<)) + # Extract compression information from intermediate object file # $(BIN)/%.zinfo : $(BIN)/%.tmp diff --git a/src/util/licence.pl b/src/util/licence.pl new file mode 100755 index 00000000..aca67186 --- /dev/null +++ b/src/util/licence.pl @@ -0,0 +1,124 @@ +#!/usr/bin/perl -w +# +# Copyright (C) 2008 Michael Brown <mbrown@fensystems.co.uk>. +# +# 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 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., 675 Mass Ave, Cambridge, MA 02139, USA. + +use strict; +use warnings; +use Getopt::Long; + +# List of licences we can handle +my $known_licences = { + gpl_any => { + desc => "GPL (any version)", + can_subsume => { + public_domain => 1, + bsd3 => 1, + bsd2 => 1, + }, + }, + gpl2_or_later => { + desc => "GPL version 2 (or, at your option, any later version)", + can_subsume => { + gpl_any => 1, + public_domain => 1, + bsd3 => 1, + bsd2 => 1, + }, + }, + gpl2_only => { + desc => "GPL version 2 only", + can_subsume => { + gpl_any => 1, + gpl2_or_later => 1, + public_domain => 1, + bsd3 => 1, + bsd2 => 1, + }, + }, + public_domain => { + desc => "Public Domain", + can_subsume => {}, + }, + bsd4 => { + desc => "BSD Licence (with advertising clause)", + can_subsume => { + public_domain => 1, + bsd3 => 1, + bsd2 => 1, + }, + }, + bsd3 => { + desc => "BSD Licence (without advertising clause)", + can_subsume => { + public_domain => 1, + bsd2 => 1, + }, + }, + bsd2 => { + desc => "BSD Licence (without advertising or endorsement clauses)", + can_subsume => { + public_domain => 1, + }, + }, +}; + +# Parse command-line options +my $verbosity = 1; +Getopt::Long::Configure ( 'bundling', 'auto_abbrev' ); +GetOptions ( + 'verbose|v+' => sub { $verbosity++; }, + 'quiet|q+' => sub { $verbosity--; }, +) or die "Could not parse command-line options\n"; + +# Parse licence list from command line +my $licences = {}; +foreach my $licence ( @ARGV ) { + die "Unknown licence \"$licence\"\n" + unless exists $known_licences->{$licence}; + $licences->{$licence} = $known_licences->{$licence}; +} +die "No licences specified\n" unless %$licences; + +# Dump licence list +if ( $verbosity >= 1 ) { + print "The following licences appear within this file:\n"; + foreach my $licence ( keys %$licences ) { + print " ".$licences->{$licence}->{desc}."\n" + } +} + +# Apply licence compatibilities to reduce to a single resulting licence +foreach my $licence ( keys %$licences ) { + # Skip already-deleted licences + next unless exists $licences->{$licence}; + # Subsume any subsumable licences + foreach my $can_subsume ( keys %{$licences->{$licence}->{can_subsume}} ) { + if ( exists $licences->{$can_subsume} ) { + print $licences->{$licence}->{desc}." subsumes ". + $licences->{$can_subsume}->{desc}."\n" + if $verbosity >= 1; + delete $licences->{$can_subsume}; + } + } +} + +# Print resulting licence +die "Cannot reduce to a single resulting licence!\n" + if ( keys %$licences ) != 1; +( my $licence ) = keys %$licences; +print "The overall licence for this file is:\n " if $verbosity >= 1; +print $licences->{$licence}->{desc}."\n"; |