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#!/usr/bin/perl
# this script takes kernels rpms from RPMS/ or /lib/modules/<VER>
# and create various files in all_kernels/:
# all.kernels/VER/all_modules.tar (used for all.rdz)
# all.kernels/VER/modules.dep
# all.kernels/VER/modules.alias
# all.kernels/VER/vmlinuz
use lib '../kernel';
use MDK::Common;
use list_modules;
(my $karch = arch()) =~ s/^i.86$/i586/;
my $rpm = 'rpm --nosignature';
my $MOVE = $ARGV[0] eq '--move' && shift;
@ARGV <= 1 or die "usage: ./update_kernel [--move] [<kernel rpm>]\n";
eval { rm_rf('all.kernels') }; #- remove old things
mkdir 'all.kernels';
my $main = chomp_(cat_('RPMS/.main'));
if (@ARGV) {
install_kernel($ARGV[0]);
}
if (glob("RPMS/*.rpm")) {
extract_kernel($_) foreach glob("RPMS/*.rpm");
} else {
my @l = all('/lib/modules');
@l = grep { /legacy/ } @l if arch() =~ /i.86/;
extract_installed_rpm('/', $_) foreach @l;
}
sub system_verbose { print join(' ', @_), "\n"; system(@_) }
sub sys { &system_verbose; $? and die }
sub rpm2version {
my ($kernel_rpm) = @_;
`$rpm -qpl $kernel_rpm` =~ m!/boot/vmlinuz-(.*)! && $1 or die "can't find vmlinuz in $kernel_rpm\n";
}
sub install_kernel {
my ($kernel_rpm) = @_;
my $basename = basename($kernel_rpm);
warn "Installing rpm $basename in RPMS\n";
mkdir 'RPMS';
cp_af($kernel_rpm, "RPMS/$basename");
if (!$main) {
$main = rpm2version($kernel_rpm);
output('RPMS/.main', "$main\n");
}
}
sub extract_kernel {
my ($kernel_rpm) = @_;
my $kern_ver = rpm2version($kernel_rpm);
my $dir = "all.kernels/$kern_ver";
warn "Extracting kernel $kern_ver\n";
eval { rm_rf($dir) };
mkdir_p("$dir/modules");
sys("rpm2cpio $kernel_rpm | (cd $dir ; cpio -id)");
extract_installed_rpm($dir, $kern_ver);
eval { rm_rf("$dir$_") } foreach qw(/boot /lib /usr);
}
sub extract_installed_rpm {
my ($installed_dir, $kern_ver) = @_;
my $local_dir = "all.kernels/$kern_ver";
mkdir_p("$local_dir/modules");
sys('cp', "$installed_dir/boot/vmlinuz-$kern_ver", "$local_dir/vmlinuz");
sys("cp $installed_dir/lib/modules/$kern_ver/modules.* $local_dir");
open(my $F, "find $installed_dir/lib/modules/$kern_ver -name '*.ko.gz' |");
my $file; while ($file = <$F>) {
chomp($file);
system('cp', $file, "$local_dir/modules/" . basename($file)) == 0
or warn "conflict for $file\n";
}
sys('perl', '../kernel/modules.pl', 'remove_unneeded_modules', $kern_ver);
sys('perl', '../kernel/modules.pl', 'make_modules_per_image', $kern_ver);
sys('cp', '-f', "$local_dir/modules.description", '.') if $kern_ver eq $main || !$main;
rm_rf("$local_dir/modules");
}
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