diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.1/0023-scripts-Add-mkknlimg-and-knlinfo-scripts-from-tools-.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.1/0023-scripts-Add-mkknlimg-and-knlinfo-scripts-from-tools-.patch | 481 |
1 files changed, 0 insertions, 481 deletions
diff --git a/target/linux/brcm2708/patches-4.1/0023-scripts-Add-mkknlimg-and-knlinfo-scripts-from-tools-.patch b/target/linux/brcm2708/patches-4.1/0023-scripts-Add-mkknlimg-and-knlinfo-scripts-from-tools-.patch deleted file mode 100644 index d843f37afd..0000000000 --- a/target/linux/brcm2708/patches-4.1/0023-scripts-Add-mkknlimg-and-knlinfo-scripts-from-tools-.patch +++ /dev/null @@ -1,481 +0,0 @@ -From e8a7ea84bd95e08fd11b88eb859526bcb9dbfceb Mon Sep 17 00:00:00 2001 -From: Phil Elwell <phil@raspberrypi.org> -Date: Mon, 11 May 2015 09:00:42 +0100 -Subject: [PATCH 023/222] scripts: Add mkknlimg and knlinfo scripts from tools - repo - -The Raspberry Pi firmware looks for a trailer on the kernel image to -determine whether it was compiled with Device Tree support enabled. -If the firmware finds a kernel without this trailer, or which has a -trailer indicating that it isn't DT-capable, it disables DT support -and reverts to using ATAGs. - -The mkknlimg utility adds that trailer, having first analysed the -image to look for signs of DT support and the kernel version string. - -knlinfo displays the contents of the trailer in the given kernel image. - -scripts/mkknlimg: Add support for ARCH_BCM2835 - -Add a new trailer field indicating whether this is an ARCH_BCM2835 -build, as opposed to MACH_BCM2708/9. If the loader finds this flag -is set it changes the default base dtb file name from bcm270x... -to bcm283y... - -Also update knlinfo to show the status of the field. ---- - scripts/knlinfo | 168 +++++++++++++++++++++++++++++++++ - scripts/mkknlimg | 275 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ - 2 files changed, 443 insertions(+) - create mode 100755 scripts/knlinfo - create mode 100755 scripts/mkknlimg - ---- /dev/null -+++ b/scripts/knlinfo -@@ -0,0 +1,168 @@ -+#!/usr/bin/env perl -+# ---------------------------------------------------------------------- -+# knlinfo by Phil Elwell for Raspberry Pi -+# -+# (c) 2014,2015 Raspberry Pi (Trading) Limited <info@raspberrypi.org> -+# -+# Licensed under the terms of the GNU General Public License. -+# ---------------------------------------------------------------------- -+ -+use strict; -+use integer; -+ -+use Fcntl ":seek"; -+ -+my $trailer_magic = 'RPTL'; -+ -+my %atom_formats = -+( -+ 'DTOK' => \&format_bool, -+ 'KVer' => \&format_string, -+ '283x' => \&format_bool, -+); -+ -+if (@ARGV != 1) -+{ -+ print ("Usage: knlinfo <kernel image>\n"); -+ exit(1); -+} -+ -+my $kernel_file = $ARGV[0]; -+ -+ -+my ($atoms, $pos) = read_trailer($kernel_file); -+ -+exit(1) if (!$atoms); -+ -+printf("Kernel trailer found at %d/0x%x:\n", $pos, $pos); -+ -+foreach my $atom (@$atoms) -+{ -+ printf(" %s: %s\n", $atom->[0], format_atom($atom)); -+} -+ -+exit(0); -+ -+sub read_trailer -+{ -+ my ($kernel_file) = @_; -+ my $fh; -+ -+ if (!open($fh, '<', $kernel_file)) -+ { -+ print ("* Failed to open '$kernel_file'\n"); -+ return undef; -+ } -+ -+ if (!seek($fh, -12, SEEK_END)) -+ { -+ print ("* seek error in '$kernel_file'\n"); -+ return undef; -+ } -+ -+ my $last_bytes; -+ sysread($fh, $last_bytes, 12); -+ -+ my ($trailer_len, $data_len, $magic) = unpack('VVa4', $last_bytes); -+ -+ if (($magic ne $trailer_magic) || ($data_len != 4)) -+ { -+ print ("* no trailer\n"); -+ return undef; -+ } -+ if (!seek($fh, -12, SEEK_END)) -+ { -+ print ("* seek error in '$kernel_file'\n"); -+ return undef; -+ } -+ -+ $trailer_len -= 12; -+ -+ while ($trailer_len > 0) -+ { -+ if ($trailer_len < 8) -+ { -+ print ("* truncated atom header in trailer\n"); -+ return undef; -+ } -+ if (!seek($fh, -8, SEEK_CUR)) -+ { -+ print ("* seek error in '$kernel_file'\n"); -+ return undef; -+ } -+ $trailer_len -= 8; -+ -+ my $atom_hdr; -+ sysread($fh, $atom_hdr, 8); -+ my ($atom_len, $atom_type) = unpack('Va4', $atom_hdr); -+ -+ if ($trailer_len < $atom_len) -+ { -+ print ("* truncated atom data in trailer\n"); -+ return undef; -+ } -+ -+ my $rounded_len = (($atom_len + 3) & ~3); -+ if (!seek($fh, -(8 + $rounded_len), SEEK_CUR)) -+ { -+ print ("* seek error in '$kernel_file'\n"); -+ return undef; -+ } -+ $trailer_len -= $rounded_len; -+ -+ my $atom_data; -+ sysread($fh, $atom_data, $atom_len); -+ -+ if (!seek($fh, -$atom_len, SEEK_CUR)) -+ { -+ print ("* seek error in '$kernel_file'\n"); -+ return undef; -+ } -+ -+ push @$atoms, [ $atom_type, $atom_data ]; -+ } -+ -+ if (($$atoms[-1][0] eq "\x00\x00\x00\x00") && -+ ($$atoms[-1][1] eq "")) -+ { -+ pop @$atoms; -+ } -+ else -+ { -+ print ("* end marker missing from trailer\n"); -+ } -+ -+ return ($atoms, tell($fh)); -+} -+ -+sub format_atom -+{ -+ my ($atom) = @_; -+ -+ my $format_func = $atom_formats{$atom->[0]} || \&format_hex; -+ return $format_func->($atom->[1]); -+} -+ -+sub format_bool -+{ -+ my ($data) = @_; -+ return unpack('V', $data) ? 'true' : 'false'; -+} -+ -+sub format_int -+{ -+ my ($data) = @_; -+ return unpack('V', $data); -+} -+ -+sub format_string -+{ -+ my ($data) = @_; -+ return '"'.$data.'"'; -+} -+ -+sub format_hex -+{ -+ my ($data) = @_; -+ return unpack('H*', $data); -+} ---- /dev/null -+++ b/scripts/mkknlimg -@@ -0,0 +1,275 @@ -+#!/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')); -+} |