|
|
@@ -0,0 +1,299 @@
|
|
|
+#!/usr/bin/env perl
|
|
|
+#
|
|
|
+# Originaly from: https://github.com/raspberrypi/tools/blob/master/mkimage/mkknlimg
|
|
|
+# Original cset : f5642106425d430e1f82ee064121a5fd0e05a386
|
|
|
+#
|
|
|
+# ----------------------------------------------------------------------
|
|
|
+# mkknlimg by Phil Elwell for Raspberry Pi
|
|
|
+# based on extract-ikconfig by Dick Streefland
|
|
|
+#
|
|
|
+# (c) 2009,2010 Dick Streefland <dick@streefland.net>
|
|
|
+# (c) 2014,2015 Raspberry Pi (Trading) Limited <info@raspberrypi.org>
|
|
|
+#
|
|
|
+# Licensed under the terms of the GNU General Public License.
|
|
|
+# ----------------------------------------------------------------------
|
|
|
+
|
|
|
+use strict;
|
|
|
+use warnings;
|
|
|
+use integer;
|
|
|
+
|
|
|
+use constant FLAG_PI => 1;
|
|
|
+use constant FLAG_DTOK => 2;
|
|
|
+use constant FLAG_DDTK => 4;
|
|
|
+use constant FLAG_283X => 8;
|
|
|
+
|
|
|
+my $trailer_magic = 'RPTL';
|
|
|
+
|
|
|
+my $tmpfile1 = "/tmp/mkknlimg_$$.1";
|
|
|
+my $tmpfile2 = "/tmp/mkknlimg_$$.2";
|
|
|
+
|
|
|
+my $dtok = 0;
|
|
|
+my $ddtk = 0;
|
|
|
+my $is_283x = 0;
|
|
|
+
|
|
|
+while (@ARGV && ($ARGV[0] =~ /^-/))
|
|
|
+{
|
|
|
+ my $arg = shift(@ARGV);
|
|
|
+ if ($arg eq '--dtok')
|
|
|
+ {
|
|
|
+ $dtok = 1;
|
|
|
+ }
|
|
|
+ elsif ($arg eq '--ddtk')
|
|
|
+ {
|
|
|
+ $ddtk = 1;
|
|
|
+ }
|
|
|
+ elsif ($arg eq '--283x')
|
|
|
+ {
|
|
|
+ $is_283x = 1;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ print ("* Unknown option '$arg'\n");
|
|
|
+ usage();
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+usage() if (@ARGV != 2);
|
|
|
+
|
|
|
+my $kernel_file = $ARGV[0];
|
|
|
+my $out_file = $ARGV[1];
|
|
|
+
|
|
|
+if (! -r $kernel_file)
|
|
|
+{
|
|
|
+ print ("* File '$kernel_file' not found\n");
|
|
|
+ usage();
|
|
|
+}
|
|
|
+
|
|
|
+my $wanted_configs =
|
|
|
+{
|
|
|
+ 'CONFIG_BCM2708_DT' => FLAG_PI | FLAG_DTOK,
|
|
|
+ 'CONFIG_ARCH_BCM2835' => FLAG_PI | FLAG_DTOK | FLAG_283X,
|
|
|
+};
|
|
|
+
|
|
|
+my $wanted_strings =
|
|
|
+{
|
|
|
+ 'bcm2708_fb' => FLAG_PI,
|
|
|
+ 'brcm,bcm2835-mmc' => FLAG_PI,
|
|
|
+ 'brcm,bcm2835-sdhost' => FLAG_PI,
|
|
|
+ 'brcm,bcm2708-pinctrl' => FLAG_PI | FLAG_DTOK,
|
|
|
+ 'brcm,bcm2835-gpio' => FLAG_PI | FLAG_DTOK,
|
|
|
+ 'brcm,bcm2835-pm-wdt' => FLAG_PI | FLAG_DTOK | FLAG_283X,
|
|
|
+ 'of_overlay_apply' => FLAG_DTOK | FLAG_DDTK,
|
|
|
+};
|
|
|
+
|
|
|
+my $res = try_extract($kernel_file, $tmpfile1);
|
|
|
+$res ||= try_decompress('\037\213\010', 'xy', 'gunzip', 0,
|
|
|
+ $kernel_file, $tmpfile1, $tmpfile2);
|
|
|
+$res ||= try_decompress('\3757zXZ\000', 'abcde', 'unxz --single-stream', -1,
|
|
|
+ $kernel_file, $tmpfile1, $tmpfile2);
|
|
|
+$res ||= try_decompress('BZh', 'xy', 'bunzip2', 0,
|
|
|
+ $kernel_file, $tmpfile1, $tmpfile2);
|
|
|
+$res ||= try_decompress('\135\0\0\0', 'xxx', 'unlzma', 0,
|
|
|
+ $kernel_file, $tmpfile1, $tmpfile2);
|
|
|
+$res ||= try_decompress('\211\114\132', 'xy', 'lzop -d', 0,
|
|
|
+ $kernel_file, $tmpfile1, $tmpfile2);
|
|
|
+$res ||= try_decompress('\002\041\114\030', 'xy', 'lz4 -d', 1,
|
|
|
+ $kernel_file, $tmpfile1, $tmpfile2);
|
|
|
+
|
|
|
+my $append_trailer;
|
|
|
+my $trailer;
|
|
|
+my $kver = '?';
|
|
|
+
|
|
|
+$append_trailer = $dtok;
|
|
|
+
|
|
|
+if ($res)
|
|
|
+{
|
|
|
+ $kver = $res->{'kver'} || '?';
|
|
|
+ my $flags = $res->{'flags'};
|
|
|
+ print("Version: $kver\n");
|
|
|
+
|
|
|
+ if ($flags & FLAG_PI)
|
|
|
+ {
|
|
|
+ $append_trailer = 1;
|
|
|
+ $dtok ||= ($flags & FLAG_DTOK) != 0;
|
|
|
+ $is_283x ||= ($flags & FLAG_283X) != 0;
|
|
|
+ $ddtk ||= ($flags & FLAG_DDTK) != 0;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ print ("* This doesn't look like a Raspberry Pi kernel. In pass-through mode.\n");
|
|
|
+ }
|
|
|
+}
|
|
|
+elsif (!$dtok)
|
|
|
+{
|
|
|
+ print ("* Is this a valid kernel? In pass-through mode.\n");
|
|
|
+}
|
|
|
+
|
|
|
+if ($append_trailer)
|
|
|
+{
|
|
|
+ printf("DT: %s\n", $dtok ? "y" : "n");
|
|
|
+ printf("DDT: %s\n", $ddtk ? "y" : "n");
|
|
|
+ printf("283x: %s\n", $is_283x ? "y" : "n");
|
|
|
+
|
|
|
+ my @atoms;
|
|
|
+
|
|
|
+ push @atoms, [ $trailer_magic, pack('V', 0) ];
|
|
|
+ push @atoms, [ 'KVer', $kver ];
|
|
|
+ push @atoms, [ 'DTOK', pack('V', $dtok) ];
|
|
|
+ push @atoms, [ 'DDTK', pack('V', $ddtk) ];
|
|
|
+ push @atoms, [ '283x', pack('V', $is_283x) ];
|
|
|
+
|
|
|
+ $trailer = pack_trailer(\@atoms);
|
|
|
+ $atoms[0]->[1] = pack('V', length($trailer));
|
|
|
+
|
|
|
+ $trailer = pack_trailer(\@atoms);
|
|
|
+}
|
|
|
+
|
|
|
+my $ofh;
|
|
|
+my $total_len = 0;
|
|
|
+
|
|
|
+if ($out_file eq $kernel_file)
|
|
|
+{
|
|
|
+ die "* Failed to open '$out_file' for append\n"
|
|
|
+ if (!open($ofh, '>>', $out_file));
|
|
|
+ $total_len = tell($ofh);
|
|
|
+}
|
|
|
+else
|
|
|
+{
|
|
|
+ die "* Failed to open '$kernel_file'\n"
|
|
|
+ if (!open(my $ifh, '<', $kernel_file));
|
|
|
+ die "* Failed to create '$out_file'\n"
|
|
|
+ if (!open($ofh, '>', $out_file));
|
|
|
+
|
|
|
+ my $copybuf;
|
|
|
+ while (1)
|
|
|
+ {
|
|
|
+ my $bytes = sysread($ifh, $copybuf, 64*1024);
|
|
|
+ last if (!$bytes);
|
|
|
+ syswrite($ofh, $copybuf, $bytes);
|
|
|
+ $total_len += $bytes;
|
|
|
+ }
|
|
|
+ close($ifh);
|
|
|
+}
|
|
|
+
|
|
|
+if ($trailer)
|
|
|
+{
|
|
|
+ # Pad to word-alignment
|
|
|
+ syswrite($ofh, "\x000\x000\x000", (-$total_len & 0x3));
|
|
|
+ syswrite($ofh, $trailer);
|
|
|
+}
|
|
|
+
|
|
|
+close($ofh);
|
|
|
+
|
|
|
+exit($trailer ? 0 : 1);
|
|
|
+
|
|
|
+END {
|
|
|
+ unlink($tmpfile1) if ($tmpfile1);
|
|
|
+ unlink($tmpfile2) if ($tmpfile2);
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+sub usage
|
|
|
+{
|
|
|
+ print ("Usage: mkknlimg [--dtok] [--283x] <vmlinux|zImage|bzImage> <outfile>\n");
|
|
|
+ exit(1);
|
|
|
+}
|
|
|
+
|
|
|
+sub try_extract
|
|
|
+{
|
|
|
+ my ($knl, $tmp) = @_;
|
|
|
+
|
|
|
+ my $ver = `strings "$knl" | grep -a -E "^Linux version [1-9]"`;
|
|
|
+
|
|
|
+ return undef if (!$ver);
|
|
|
+
|
|
|
+ chomp($ver);
|
|
|
+
|
|
|
+ my $res = { 'kver'=>$ver };
|
|
|
+ $res->{'flags'} = strings_to_flags($knl, $wanted_strings) |
|
|
|
+ configs_to_flags($knl, $tmp, $wanted_configs);
|
|
|
+
|
|
|
+ return $res;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+sub try_decompress
|
|
|
+{
|
|
|
+ my ($magic, $subst, $zcat, $idx, $knl, $tmp1, $tmp2) = @_;
|
|
|
+
|
|
|
+ my $pos = `tr "$magic\n$subst" "\n$subst=" < "$knl" | grep -abo "^$subst"`;
|
|
|
+ if ($pos)
|
|
|
+ {
|
|
|
+ chomp($pos);
|
|
|
+ $pos = (split(/[\r\n]+/, $pos))[$idx];
|
|
|
+ return undef if (!defined($pos));
|
|
|
+ $pos =~ s/:.*[\r\n]*$//s;
|
|
|
+ my $cmd = "tail -c+$pos \"$knl\" | $zcat > $tmp2 2> /dev/null";
|
|
|
+ my $err = (system($cmd) >> 8);
|
|
|
+ return undef if (($err != 0) && ($err != 2));
|
|
|
+
|
|
|
+ return try_extract($tmp2, $tmp1);
|
|
|
+ }
|
|
|
+
|
|
|
+ return undef;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+sub strings_to_flags
|
|
|
+{
|
|
|
+ my ($knl, $strings) = @_;
|
|
|
+ my $string_pattern = '^('.join('|', keys(%$strings)).')$';
|
|
|
+ my $flags = 0;
|
|
|
+
|
|
|
+ my @matches = `strings \"$knl\" | grep -E \"$string_pattern\"`;
|
|
|
+ foreach my $match (@matches)
|
|
|
+ {
|
|
|
+ chomp($match);
|
|
|
+ $flags |= $strings->{$match};
|
|
|
+ }
|
|
|
+
|
|
|
+ return $flags;
|
|
|
+}
|
|
|
+
|
|
|
+sub configs_to_flags
|
|
|
+{
|
|
|
+ my ($knl, $tmp, $configs) = @_;
|
|
|
+ my $config_pattern = '^('.join('|', keys(%$configs)).')=(.*)$';
|
|
|
+ my $cf1 = 'IKCFG_ST\037\213\010';
|
|
|
+ my $cf2 = '0123456789';
|
|
|
+ my $flags = 0;
|
|
|
+
|
|
|
+ my $pos = `tr "$cf1\n$cf2" "\n$cf2=" < "$knl" | grep -abo "^$cf2"`;
|
|
|
+ if ($pos)
|
|
|
+ {
|
|
|
+ $pos =~ s/:.*[\r\n]*$//s;
|
|
|
+ $pos += 8;
|
|
|
+ my $err = (system("tail -c+$pos \"$knl\" | zcat > $tmp 2> /dev/null") >> 8);
|
|
|
+ if (($err == 0) || ($err == 2))
|
|
|
+ {
|
|
|
+ if (open(my $fh, '<', $tmp))
|
|
|
+ {
|
|
|
+ while (my $line = <$fh>)
|
|
|
+ {
|
|
|
+ chomp($line);
|
|
|
+ if (($line =~ /$config_pattern/) &&
|
|
|
+ (($2 eq 'y') || ($2 eq 'm')))
|
|
|
+ {
|
|
|
+ $flags |= $configs->{$1};
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ close($fh);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return $flags;
|
|
|
+}
|
|
|
+
|
|
|
+sub pack_trailer
|
|
|
+{
|
|
|
+ my ($atoms) = @_;
|
|
|
+ my $trailer = pack('VV', 0, 0);
|
|
|
+ for (my $i = $#$atoms; $i>=0; $i--)
|
|
|
+ {
|
|
|
+ my $atom = $atoms->[$i];
|
|
|
+ $trailer .= pack('a*x!4Va4', $atom->[1], length($atom->[1]), $atom->[0]);
|
|
|
+ }
|
|
|
+ return $trailer;
|
|
|
+}
|
Waldemar Brodkorb