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@ -1778,10 +1778,12 @@ sub main() {
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# copy ARGV because getopt modifies it
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my @ARGVORIG = @ARGV;
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chomp (my $hostarch = `dpkg --print-architecture`);
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my $options = {
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components => ["main"],
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variant => "important",
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include => undef,
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architectures => [$hostarch],
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mode => 'auto',
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dpkgopts => [],
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aptopts => [],
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@ -1790,7 +1792,6 @@ sub main() {
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essential_hook => [],
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customize_hook => [],
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};
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chomp ($options->{architectures} = `dpkg --print-architecture`);
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my $logfile = undef;
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Getopt::Long::Configure ('default', 'bundling', 'auto_abbrev', 'ignore_case_always');
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GetOptions(
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@ -1799,7 +1800,7 @@ sub main() {
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'components=s@' => \$options->{components},
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'variant=s' => \$options->{variant},
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'include=s' => \$options->{include},
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'architectures=s' => \$options->{architectures},
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'architectures=s@' => \$options->{architectures},
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'mode=s' => \$options->{mode},
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'dpkgopt=s@' => \$options->{dpkgopts},
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'aptopt=s@' => \$options->{aptopts},
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@ -1938,9 +1939,37 @@ sub main() {
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error "unknown mode: $options->{mode}";
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}
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my ($nativearch, @foreignarchs) = split /,/, $options->{architectures};
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$options->{nativearch} = $nativearch;
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$options->{foreignarchs} = \@foreignarchs;
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my @architectures = ();
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foreach my $archs (@{$options->{architectures}}) {
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foreach my $arch (split /[,\s]+/, $archs) {
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# strip leading and trailing whitespace
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$arch =~ s/^\s+|\s+$//g;
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# skip if the remainder is an empty string
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if ($arch eq '') {
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next;
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}
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# do not append component if it's already in the list
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if (any {$_ eq $arch} @architectures) {
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next;
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}
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push @architectures, $arch;
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}
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}
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$options->{nativearch} = $hostarch;
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$options->{foreignarchs} = [];
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if (scalar @architectures == 0) {
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warning "empty architecture list: falling back to native architecture $hostarch";
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} elsif (scalar @architectures == 1) {
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$options->{nativearch} = $architectures[0];
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} else {
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$options->{nativearch} = $architectures[0];
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push @{$options->{foreignarchs}}, @architectures[1..$#architectures];
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}
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debug "Native architecture (outside): $hostarch";
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debug "Native architecture (inside): $options->{nativearch}";
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debug ("Foreign architectures (inside): " . (join ', ', @{$options->{foreignarchs}}));
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{
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# FIXME: autogenerate this list
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@ -1967,8 +1996,7 @@ sub main() {
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sparc => 'sparc',
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sparc64 => 'sparc64',
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};
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chomp (my $hostarch = `dpkg --print-architecture`);
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if ($hostarch ne $nativearch) {
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if ($hostarch ne $options->{nativearch}) {
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my $withemu = 0;
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my $noemu = 0;
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{
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@ -1976,17 +2004,17 @@ sub main() {
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if ($pid == 0) {
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{
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no warnings; # don't print a warning if the following fails
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exec 'arch-test', $nativearch;
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exec 'arch-test', $options->{nativearch};
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}
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# if exec didn't work (for example because the arch-test program is
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# missing) prepare for the worst and assume that the architecture
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# cannot be executed
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print "$nativearch: not supported on this machine/kernel\n";
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print "$options->{nativearch}: not supported on this machine/kernel\n";
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exit 1;
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}
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chomp (my $content = do { local $/; <$fh> });
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close $fh;
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if ($? == 0 and $content eq "$nativearch: ok") {
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if ($? == 0 and $content eq "$options->{nativearch}: ok") {
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$withemu = 1;
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}
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}
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@ -1995,17 +2023,17 @@ sub main() {
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if ($pid == 0) {
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{
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no warnings; # don't print a warning if the following fails
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exec 'arch-test', '-n', $nativearch;
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exec 'arch-test', '-n', $options->{nativearch};
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}
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# if exec didn't work (for example because the arch-test program is
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# missing) prepare for the worst and assume that the architecture
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# cannot be executed
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print "$nativearch: not supported on this machine/kernel\n";
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print "$options->{nativearch}: not supported on this machine/kernel\n";
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exit 1;
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}
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chomp (my $content = do { local $/; <$fh> });
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close $fh;
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if ($? == 0 and $content eq "$nativearch: ok") {
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if ($? == 0 and $content eq "$options->{nativearch}: ok") {
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$noemu = 1;
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}
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}
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@ -2034,10 +2062,10 @@ sub main() {
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close $fh;
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}
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{
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if (!exists $deb2qemu->{$nativearch}) {
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warning "no mapping from $nativearch to qemu-user binary";
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if (!exists $deb2qemu->{$options->{nativearch}}) {
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warning "no mapping from $options->{nativearch} to qemu-user binary";
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} else {
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my $binfmt_identifier = 'qemu-' . $deb2qemu->{$nativearch};
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my $binfmt_identifier = 'qemu-' . $deb2qemu->{$options->{nativearch}};
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open my $fh, '-|', '/usr/sbin/update-binfmts', '--display', $binfmt_identifier // error "failed to fork(): $!";
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chomp (my $binfmts = do { local $/; <$fh> });
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close $fh;
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@ -2046,22 +2074,22 @@ sub main() {
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}
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}
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}
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error "$nativearch can neither be executed natively nor via qemu user emulation with binfmt_misc";
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error "$options->{nativearch} can neither be executed natively nor via qemu user emulation with binfmt_misc";
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} elsif ($withemu == 0 and $noemu == 1) {
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error "arch-test succeeded without emu but not with emu";
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} elsif ($withemu == 1 and $noemu == 0) {
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info "$nativearch cannot be executed, falling back to qemu-user";
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if (!exists $deb2qemu->{$nativearch}) {
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error "no mapping from $nativearch to qemu-user binary";
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info "$options->{nativearch} cannot be executed, falling back to qemu-user";
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if (!exists $deb2qemu->{$options->{nativearch}}) {
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error "no mapping from $options->{nativearch} to qemu-user binary";
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}
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$options->{qemu} = $deb2qemu->{$nativearch};
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$options->{qemu} = $deb2qemu->{$options->{nativearch}};
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} elsif ($withemu == 1 and $noemu == 1) {
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info "$nativearch is different from $hostarch but can be executed natively";
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info "$options->{nativearch} is different from $hostarch but can be executed natively";
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} else {
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error "logic error";
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}
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} else {
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info "chroot architecture $nativearch is equal to the host's architecture";
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info "chroot architecture $options->{nativearch} is equal to the host's architecture";
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}
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}
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@ -2750,11 +2778,18 @@ of duplicates. So the following are equivalent:
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=item B<--architectures>=I<native>[,I<foreign1>,...]
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Comma separated list of architectures. The first architecture is the I<native>
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architecture inside the chroot. The remaining architectures will be added to
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the foreign dpkg architectures. Without this option, the I<native>
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Comma or whitespace separated list of architectures. The first architecture is
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the I<native> architecture inside the chroot. The remaining architectures will
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be added to the foreign dpkg architectures. Without this option, the I<native>
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architecture of the chroot defaults to the native architecture of the system
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running B<mmdebstrap>.
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running B<mmdebstrap>. The option can be specified multiple times and values
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are concatenated. If later list items are repeated, then they get dropped so
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that the resulting list is free of duplicates. So the following are
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equivalent:
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--architectures="amd64 armhf mipsel"
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--architectures=amd64,armhf,mipsel
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--arch=amd64 --arch="armhf mipsel" --arch=armhf,mipsel
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=begin comment
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