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@ -954,6 +954,7 @@ sub main() {
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$options->{nativearch} = $nativearch;
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$options->{nativearch} = $nativearch;
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$options->{foreignarchs} = \@foreignarchs;
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$options->{foreignarchs} = \@foreignarchs;
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{
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my $deb2qemu = {
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my $deb2qemu = {
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alpha => 'alpha',
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alpha => 'alpha',
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amd64 => 'x86_64',
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amd64 => 'x86_64',
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@ -977,14 +978,31 @@ sub main() {
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sparc => 'sparc',
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sparc => 'sparc',
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sparc64 => 'sparc64',
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sparc64 => 'sparc64',
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};
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};
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open my $fh, '-|', 'arch-test', '-n', $nativearch // die "failed to fork(): $!";
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chomp (my $hostarch = `dpkg --print-architecture`);
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if ($hostarch ne $nativearch) {
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my $pid = open my $fh, '-|' // die "failed to fork(): $!";
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if ($pid == 0) {
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{ exec 'arch-test', '-n', $nativearch; }
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# if exec didn't work (for example because the arch-test program is
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# missing) prepare for the worst and assume that the architecture
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# cannot be executed
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print "$nativearch: not supported on this machine/kernel\n";
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exit 1;
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}
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chomp (my $content = do { local $/; <$fh> });
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chomp (my $content = do { local $/; <$fh> });
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close $fh;
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close $fh;
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if ($? != 0 or $content ne "$nativearch: ok") {
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if ($? != 0 or $content ne "$nativearch: ok") {
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print STDERR "I: $nativearch cannot be executed, falling back to qemu-user\n";
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if (!exists $deb2qemu->{$nativearch}) {
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if (!exists $deb2qemu->{$nativearch}) {
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die "no mapping from $nativearch to qemu-user binary";
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die "no mapping from $nativearch to qemu-user binary";
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}
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}
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$options->{qemu} = $deb2qemu->{$nativearch};
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$options->{qemu} = $deb2qemu->{$nativearch};
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} else {
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print STDERR "I: $nativearch can be executed on this $hostarch machine\n";
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}
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} else {
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print STDERR "I: chroot architecture $nativearch is equal to the host's architecture\n";
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}
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}
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}
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if (scalar @ARGV > 0) {
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if (scalar @ARGV > 0) {
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