|
@@ -1,275 +0,0 @@
|
|
|
-#!/usr/bin/env perl
|
|
|
-# ----------------------------------------------------------------------
|
|
|
-# 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;
|
|
|
-
|
|
|
-my $trailer_magic = 'RPTL';
|
|
|
-
|
|
|
-my $tmpfile1 = "/tmp/mkknlimg_$$.1";
|
|
|
-my $tmpfile2 = "/tmp/mkknlimg_$$.2";
|
|
|
-
|
|
|
-my $dtok = 0;
|
|
|
-my $is_283x = 0;
|
|
|
-
|
|
|
-while (@ARGV && ($ARGV[0] =~ /^-/))
|
|
|
-{
|
|
|
- my $arg = shift(@ARGV);
|
|
|
- if ($arg eq '--dtok')
|
|
|
- {
|
|
|
- $dtok = 1;
|
|
|
- }
|
|
|
- elsif ($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_config_lines =
|
|
|
-(
|
|
|
- 'CONFIG_BCM2708_DT',
|
|
|
- 'CONFIG_ARCH_BCM2835'
|
|
|
-);
|
|
|
-
|
|
|
-my @wanted_strings =
|
|
|
-(
|
|
|
- 'bcm2708_fb',
|
|
|
- 'brcm,bcm2835-mmc',
|
|
|
- 'brcm,bcm2835-sdhost',
|
|
|
- 'brcm,bcm2708-pinctrl',
|
|
|
- 'brcm,bcm2835-gpio',
|
|
|
- 'brcm,bcm2835-pm-wdt'
|
|
|
-);
|
|
|
-
|
|
|
-my $res = try_extract($kernel_file, $tmpfile1);
|
|
|
-$res = try_decompress('\037\213\010', 'xy', 'gunzip', 0,
|
|
|
- $kernel_file, $tmpfile1, $tmpfile2) if (!$res);
|
|
|
-$res = try_decompress('\3757zXZ\000', 'abcde', 'unxz --single-stream', -1,
|
|
|
- $kernel_file, $tmpfile1, $tmpfile2) if (!$res);
|
|
|
-$res = try_decompress('BZh', 'xy', 'bunzip2', 0,
|
|
|
- $kernel_file, $tmpfile1, $tmpfile2) if (!$res);
|
|
|
-$res = try_decompress('\135\0\0\0', 'xxx', 'unlzma', 0,
|
|
|
- $kernel_file, $tmpfile1, $tmpfile2) if (!$res);
|
|
|
-$res = try_decompress('\211\114\132', 'xy', 'lzop -d', 0,
|
|
|
- $kernel_file, $tmpfile1, $tmpfile2) if (!$res);
|
|
|
-$res = try_decompress('\002\041\114\030', 'xy', 'lz4 -d', 1,
|
|
|
- $kernel_file, $tmpfile1, $tmpfile2) if (!$res);
|
|
|
-
|
|
|
-my $append_trailer;
|
|
|
-my $trailer;
|
|
|
-my $kver = '?';
|
|
|
-
|
|
|
-$append_trailer = $dtok;
|
|
|
-
|
|
|
-if ($res)
|
|
|
-{
|
|
|
- $kver = $res->{''} || '?';
|
|
|
- print("Version: $kver\n");
|
|
|
-
|
|
|
- $append_trailer = $dtok;
|
|
|
- if (!$dtok)
|
|
|
- {
|
|
|
- if (config_bool($res, 'bcm2708_fb') ||
|
|
|
- config_bool($res, 'brcm,bcm2835-mmc') ||
|
|
|
- config_bool($res, 'brcm,bcm2835-sdhost'))
|
|
|
- {
|
|
|
- $dtok ||= config_bool($res, 'CONFIG_BCM2708_DT');
|
|
|
- $dtok ||= config_bool($res, 'CONFIG_ARCH_BCM2835');
|
|
|
- $dtok ||= config_bool($res, 'brcm,bcm2708-pinctrl');
|
|
|
- $dtok ||= config_bool($res, 'brcm,bcm2835-gpio');
|
|
|
- $is_283x ||= config_bool($res, 'CONFIG_ARCH_BCM2835');
|
|
|
- $is_283x ||= config_bool($res, 'brcm,bcm2835-pm-wdt');
|
|
|
- $append_trailer = 1;
|
|
|
- }
|
|
|
- else
|
|
|
- {
|
|
|
- print ("* This doesn't look like a Raspberry Pi kernel. In pass-through mode.\n");
|
|
|
- }
|
|
|
- }
|
|
|
-}
|
|
|
-elsif (!$dtok)
|
|
|
-{
|
|
|
- print ("* Is this a valid kernel? In pass-through mode.\n");
|
|
|
-}
|
|
|
-
|
|
|
-if ($append_trailer)
|
|
|
-{
|
|
|
- printf("DT: %s\n", $dtok ? "y" : "n");
|
|
|
- printf("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, [ '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 $res = { ''=>$ver };
|
|
|
- my $string_pattern = '^('.join('|', @wanted_strings).')$';
|
|
|
-
|
|
|
- my @matches = `strings \"$knl\" | grep -E \"$string_pattern\"`;
|
|
|
- foreach my $match (@matches)
|
|
|
- {
|
|
|
- chomp($match);
|
|
|
- $res->{$match} = 1;
|
|
|
- }
|
|
|
-
|
|
|
- my $config_pattern = '^('.join('|', @wanted_config_lines).')=(.*)$';
|
|
|
- my $cf1 = 'IKCFG_ST\037\213\010';
|
|
|
- my $cf2 = '0123456789';
|
|
|
-
|
|
|
- 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);
|
|
|
- $res->{$1} = $2 if ($line =~ /$config_pattern/);
|
|
|
- }
|
|
|
-
|
|
|
- close($fh);
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- 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, $tmp1);
|
|
|
- }
|
|
|
-
|
|
|
- return undef;
|
|
|
-}
|
|
|
-
|
|
|
-sub pack_trailer
|
|
|
-{
|
|
|
- my ($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 $trailer;
|
|
|
-}
|
|
|
-
|
|
|
-sub config_bool
|
|
|
-{
|
|
|
- my ($configs, $wanted) = @_;
|
|
|
- my $val = $configs->{$wanted} || 'n';
|
|
|
- return (($val eq 'y') || ($val eq '1'));
|
|
|
-}
|