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@ -2514,19 +2514,41 @@ sub run_prepare {
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$ENV{QEMU_LD_PREFIX} = $options->{root};
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}
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} elsif (any { $_ eq $options->{mode} } ('root', 'unshare')) {
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# other modes require a static qemu-user binary
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my $qemubin = "/usr/bin/qemu-$options->{qemu}-static";
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if (!-e $qemubin) {
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error "cannot find $qemubin";
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}
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copy $qemubin, "$options->{root}/$qemubin"
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or error "cannot copy $qemubin: $!";
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# File::Copy does not retain permissions but on some
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# platforms (like Travis CI) the binfmt interpreter must
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# have the executable bit set or otherwise execve will
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# fail with EACCES
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chmod 0755, "$options->{root}/$qemubin"
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or error "cannot chmod $qemubin: $!";
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my $require_qemu_static = 1;
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# make $@ local, so we don't print an eventual error
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# in other parts where we evaluate $@
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local $@ = '';
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eval {
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# Check for the F flag which makes the kernel open the binfmt
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# binary at configuration time instead of lazily at startup
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# time. If the flag is set, then the qemu-static binary is not
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# required inside the chroot.
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open my $fh, '<',
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"/proc/sys/fs/binfmt_misc/qemu-$options->{qemu}";
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while (my $line = <$fh>) {
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chomp($line);
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if ($line =~ /^flags: [A-Z]*F[A-Z]*$/) {
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$require_qemu_static = 0;
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last;
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}
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}
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close $fh;
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};
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if ($require_qemu_static) {
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# other modes require a static qemu-user binary
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my $qemubin = "/usr/bin/qemu-$options->{qemu}-static";
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if (!-e $qemubin) {
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error "cannot find $qemubin";
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}
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copy $qemubin, "$options->{root}/$qemubin"
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or error "cannot copy $qemubin: $!";
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# File::Copy does not retain permissions but on some
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# platforms (like Travis CI) the binfmt interpreter must
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# have the executable bit set or otherwise execve will
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# fail with EACCES
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chmod 0755, "$options->{root}/$qemubin"
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or error "cannot chmod $qemubin: $!";
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}
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} else {
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error "unknown mode: $options->{mode}";
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}
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@ -2875,8 +2897,11 @@ sub run_cleanup() {
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or error "failed to unlink $ENV{APT_CONFIG}: $!";
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}
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if (defined $options->{qemu}
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and any { $_ eq $options->{mode} } ('root', 'unshare')) {
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if (any { $_ eq 'cleanup/mmdebstrap/qemu' } @{ $options->{skip} }) {
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info "skipping cleanup/mmdebstrap/qume as requested";
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} elsif (defined $options->{qemu}
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and any { $_ eq $options->{mode} } ('root', 'unshare')
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and -e "$options->{root}/usr/bin/qemu-$options->{qemu}-static") {
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unlink "$options->{root}/usr/bin/qemu-$options->{qemu}-static"
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or error
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"cannot unlink /usr/bin/qemu-$options->{qemu}-static: $!";
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