initial commit
This commit is contained in:
josch
commit
cd615ef0c7
4 changed files with 478 additions and 0 deletions
201
ldd.pl
Executable file
201
ldd.pl
Executable file
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@ -0,0 +1,201 @@
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#!/usr/bin/perl
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# fakeldd
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#
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# Replacement for ldd with usage of objdump
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#
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# (c) 2003-2010 Piotr Roszatycki <dexter@debian.org>, LGPL
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use strict;
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my @Libs = ();
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my %Libs = ();
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my $Status = 0;
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my $Dynamic = 0;
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my $Format = '';
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my $Ldsodir = "/lib";
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my @Ld_Library_Path = qw(/usr/lib /lib /usr/lib32 /lib32 /usr/lib64 /lib64);
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sub ldso {
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my ($lib) = @_;
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return if $Libs{$lib};
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my $path;
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if ($lib =~ /^\//) {
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$path = $lib;
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}
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else {
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foreach my $dir (@Ld_Library_Path) {
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next unless -f "$dir/$lib";
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my $badformat = 0;
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local *PIPE;
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open PIPE, "objdump -p '$dir/$lib' 2>/dev/null |";
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while (my $line = <PIPE>) {
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if ($line =~ /file format (\S*)$/) {
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$badformat = 1 unless $1 eq $Format;
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last;
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}
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}
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close PIPE;
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next if $badformat;
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$path = "$dir/$lib";
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last;
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}
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}
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push @Libs, $lib;
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if (-f $path) {
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$Libs{$lib} = $path;
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objdump($path);
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}
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}
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sub objdump {
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my (@files) = @_;
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foreach my $file (@files) {
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local *PIPE;
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open PIPE, "objdump -p '$file' 2>/dev/null |";
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while (my $line = <PIPE>) {
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$line =~ s/^\s+//;
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if ($line =~ /file format (\S*)$/) {
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if (not $Format) {
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$Format = $1;
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if ($^O eq 'linux') {
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if ($Format =~ /^elf64-/) {
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push @Libs, 'linux-vdso.so.1';
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$Libs{'linux-vdso.so.1'} = '';
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}
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else {
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push @Libs, 'linux-gate.so.1';
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$Libs{'linux-gate.so.1'} = '';
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}
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}
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foreach my $lib (split /:/, $ENV{LD_PRELOAD}||'') {
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ldso($lib);
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}
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}
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else {
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next unless $Format eq $1;
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}
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}
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if (not $Dynamic and $line =~ /^Dynamic Section:/) {
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$Dynamic = 1;
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}
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next unless $line =~ /^ \s* NEEDED \s+ (.*) \s* $/x;
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my $needed = $1;
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if ($needed =~ /^ld(-linux)?(\.|-)/) {
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$needed = "$Ldsodir/$needed";
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}
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ldso($needed);
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}
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close PIPE;
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}
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}
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sub load_ldsoconf {
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my ($file) = @_;
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local *FH;
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open FH, $file;
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while (my $line = <FH>) {
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chomp $line;
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$line =~ s/#.*//;
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next if $line =~ /^\s*$/;
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if ($line =~ /^include\s+(.*)\s*/) {
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my $include = $1;
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foreach my $incfile (glob $include) {
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load_ldsoconf($incfile);
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}
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next;
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}
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unshift @Ld_Library_Path, $line;
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}
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close FH;
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}
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MAIN: {
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my @args = @ARGV;
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if (not @args) {
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print STDERR "fakeldd: missing file arguments\n";
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exit 1;
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}
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if (not `which objdump`) {
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print STDERR "fakeldd: objdump: command not found: install binutils package\n";
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exit 1;
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}
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load_ldsoconf('/etc/ld.so.conf');
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unshift @Ld_Library_Path, split(/:/, $ENV{LD_LIBRARY_PATH}||'');
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while ($args[0] =~ /^-/) {
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my $arg = $args[0];
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shift @ARGV;
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last if $arg eq "--";
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}
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foreach my $file (@args) {
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%Libs = ();
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$Dynamic = 0;
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if (@args > 1) {
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print "$file:\n";
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}
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if (not -f $file) {
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print STDERR "ldd: $file: No such file or directory\n";
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$Status = 1;
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next;
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}
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objdump($file);
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if ($Dynamic == 0) {
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print "\tnot a dynamic executable\n";
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$Status = 1;
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}
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elsif (scalar %Libs eq "0") {
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print "\tstatically linked\n";
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}
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my $address = '0x' . '0' x ($Format =~ /^elf64-/ ? 16 : 8);
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foreach my $lib (@Libs) {
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if ($lib =~ /^\//) {
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printf "\t%s (%s)\n", $lib, $address;
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}
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elsif (defined $Libs{$lib}) {
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printf "\t%s => %s (%s)\n", $lib, $Libs{$lib}, $address;
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}
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else {
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printf "\t%s => not found\n", $lib;
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}
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}
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}
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}
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END {
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$? = $Status;
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}
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84
ldd.sh
Executable file
84
ldd.sh
Executable file
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@ -0,0 +1,84 @@
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#!/bin/sh -xe
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ld_lib_path="/usr/lib /lib /usr/lib32 /lib32 /usr/lib64 /lib64"
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lib_put () { eval lib_"$1"="$2"; }
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lib_get () { eval echo \$lib_"$1"; }
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dump()
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{
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objdump -p "$1" 2>/dev/null | while read line; do
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case $line in
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*file\ format*)
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;;
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Dynamic\ Section:)
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;;
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*NEEDED*)
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lib=${line#*NEEDED}
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lib_put $lib none
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echo $lib
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;;
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esac
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done
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}
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load_ldsoconf()
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{
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while read line; do
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line=${line%%#*}
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if [ "$line" = "" ]; then
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continue
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fi
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case $line in include*)
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line=${line#include}
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for incl in $line; do
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load_ldsoconf $incl
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done
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continue
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;;
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esac
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ld_lib_path=$ld_lib_path" $line"
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done < "$1"
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}
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if [ "$#" -eq 0 ]; then
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echo $0: missing argument
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exit 1
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fi
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OBJDUMP=`which objdump`
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if [ "$?" -ne 0 ]; then
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echo $0: objdump: command not found - install binutils packages
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exit 1
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fi
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load_ldsoconf /etc/ld.so.conf
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ld_lib_path=$LD_LIBRARY_PATH" $ld_lib_path"
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for path in $ld_lib_path; do
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if [ -d $path ]; then
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ld_tmp=$ld_tmp" $path"
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fi
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done
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ld_lib_path=$ld_tmp
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for file in "$@"; do
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if [ "$#" -gt 1 ]; then
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echo "$file:"
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fi
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if [ ! -f "$file" ]; then
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echo "ldd: $file: No such file or directory" >&2
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continue
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fi
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for lib in `dump "$file"`; do
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echo lib_get $lib
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done
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done
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30
multistrap.conf
Normal file
30
multistrap.conf
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[General]
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#arch=armhf
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arch=armel
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directory=debian-sid-multistrap
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cleanup=true
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unpack=true
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noauth=true
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#bootstrap=Debian_bootstrap Debian_unreleased
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bootstrap=Debian_bootstrap
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aptsources=Debian
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allowrecommends=false
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addimportant=false
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[Debian_bootstrap]
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packages=linux-image-kirkwood openssh-server apt locales less vim wget module-init-tools procps man-db iputils-ping dhcp3-client iproute curl vpnc rsync ifupdown net-tools binutils
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source=http://127.0.0.1:3142/ftp.de.debian.org/debian
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suite=sid
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omitdebsrc=true
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#[Debian_unreleased]
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#packages=linux-image-kirkwood openssh-server apt locales less vim wget module-init-tools procps man-db iputils-ping dhcp3-client iproute curl vpnc rsync ifupdown net-tools binutils
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#source=http://127.0.0.1:3142/ftp.de.debian.org/debian
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#suite=unreleased
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#omitdebsrc=true
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[Debian]
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source=http://ftp.de.debian.org/debian
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keyring=debian-archive-keyring
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suite=sid
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omitdebsrc=true
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163
rootstock.sh
Executable file
163
rootstock.sh
Executable file
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#!/bin/sh -ex
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if [ "$LOGNAME" = "root" ] \
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|| [ "$USER" = "root" ] \
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|| [ "$USERNAME" = "root" ] \
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|| [ "$SUDO_COMMAND" != "" ] \
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|| [ "$SUDO_USER" != "" ] \
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|| [ "$SUDO_UID" != "" ] \
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|| [ "$SUDO_GID" != "" ]; then
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echo "don't run this script as root - there is no need to"
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exit
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fi
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if [ "$FAKEROOTKEY" = "" ]; then
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echo "re-executing script inside fakeroot"
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fakeroot $0;
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exit
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fi
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DIST="sid"
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ROOTDIR="debian-$DIST-multistrap"
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MIRROR="http://127.0.0.1:3142/ftp.de.debian.org/debian"
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MIRROR_REAL="http://ftp.de.debian.org/debian"
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#MIRROR="http://127.0.0.1:3142/ftp.debian-ports.org/debian"
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#MIRROR_REAL="http://ftp.debian-ports.org/debian"
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export DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true LC_ALL=C LANGUAGE=C LANG=C
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rm -rf $ROOTDIR $ROOTDIR.tar
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PACKAGES="linux-image-kirkwood openssh-server apt locales less vim wget"
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PACKAGES=$PACKAGES" module-init-tools procps man-db iputils-ping dhcp3-client"
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PACKAGES=$PACKAGES" iproute curl vpnc rsync ifupdown net-tools binutils"
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cat > multistrap.conf << __END__
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[General]
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#arch=armhf
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arch=armel
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directory=$ROOTDIR
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cleanup=true
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unpack=true
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noauth=true
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#bootstrap=Debian_bootstrap Debian_unreleased
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bootstrap=Debian_bootstrap
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aptsources=Debian
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allowrecommends=false
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addimportant=false
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[Debian_bootstrap]
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packages=$PACKAGES
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source=$MIRROR
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suite=$DIST
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omitdebsrc=true
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#[Debian_unreleased]
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#packages=$PACKAGES
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#source=$MIRROR
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#suite=unreleased
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#omitdebsrc=true
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[Debian]
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source=$MIRROR_REAL
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keyring=debian-archive-keyring
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suite=$DIST
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omitdebsrc=true
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__END__
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multistrap -f multistrap.conf
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cp /usr/bin/qemu-arm-static $ROOTDIR/usr/bin
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# stop invoke-rc.d from starting services
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cat > $ROOTDIR/usr/sbin/policy-rc.d << __END__
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#!/bin/sh
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echo "sysvinit: All runlevel operations denied by policy" >&2
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exit 101
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__END__
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chmod +x $ROOTDIR/usr/sbin/policy-rc.d
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# fix for ldconfig inside fakechroot
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mv $ROOTDIR/sbin/ldconfig $ROOTDIR/sbin/ldconfig.REAL
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mv $ROOTDIR/usr/bin/ldd $ROOTDIR/usr/bin/ldd.REAL
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ln -s ../bin/true $ROOTDIR/sbin/ldconfig
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# get fake ldd (needs objdump from binutils) for mkinitramfs
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# https://github.com/fakechroot/fakechroot/raw/master/scripts/ldd.pl
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curl http://mister-muffin.de/p/a3Dt > $ROOTDIR/usr/bin/ldd
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chmod +x $ROOTDIR/usr/bin/ldd
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# supply ld.so.conf for fake ldd (running libc6 postinst script will fail)
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echo "include /etc/ld.so.conf.d/*.conf" > $ROOTDIR/etc/ld.so.conf
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# set ROOT for mkinitramfs
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echo "ROOT=UUID=9eada77a-5f84-49a4-838e-06abe95c8513" > $ROOTDIR/etc/initramfs-tools/conf.d/root
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# do not generate ssh host keys
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mkdir -p $ROOTDIR/etc/ssh/
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touch "$ROOTDIR/etc/ssh/ssh_host_rsa_key"
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touch "$ROOTDIR/etc/ssh/ssh_host_dsa_key"
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touch "$ROOTDIR/etc/ssh/ssh_host_ecdsa_key"
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cat > $ROOTDIR/tmp/debconfseed.txt << __END__
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# put debconf options here
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__END__
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fakechroot chroot $ROOTDIR debconf-set-selections /tmp/debconfseed.txt
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rm $ROOTDIR/tmp/debconfseed.txt
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# run preinst scripts
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for script in $ROOTDIR/var/lib/dpkg/info/*.preinst; do
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[ "$script" = "$ROOTDIR/var/lib/dpkg/info/bash.preinst" ] && continue
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fakechroot chroot $ROOTDIR ${script##$ROOTDIR} install
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done
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# run dpkg --configure -a twice because of errors during the first run
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fakechroot chroot $ROOTDIR /usr/bin/dpkg --configure -a || fakechroot chroot $ROOTDIR /usr/bin/dpkg --configure -a
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fakechroot chroot $ROOTDIR update-locale LANG=en_US.UTF-8 LANGUAGE=en_US:en
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echo en_US.UTF-8 UTF-8 > $ROOTDIR/etc/locale.gen
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fakechroot chroot $ROOTDIR locale-gen
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cat > $ROOTDIR/etc/fstab << __END__
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# <file system> <mount point> <type> <options> <dump> <pass>
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rootfs / auto defaults,errors=remount-ro,noatime 0 1
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proc /proc proc defaults 0 0
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tmpfs /tmp tmpfs defaults,noatime 0 0
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tmpfs /var/lock tmpfs defaults,noatime 0 0
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tmpfs /var/run tmpfs defaults,noatime 0 0
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tmpfs /var/log tmpfs defaults,noatime 0 0
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tmpfs /etc/network/run tmpfs defaults,noatime 0 0
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__END__
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||||
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echo kirkwood > $ROOTDIR/etc/hostname
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cat > $ROOTDIR/etc/hosts << __END__
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127.0.0.1 localhost
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127.0.0.1 kirkwood
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__END__
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||||
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||||
# activate a tty on serial
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echo "T0:23:respawn:/sbin/getty -L ttyS0 115200 vt100" >> $ROOTDIR/etc/inittab
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||||
sed -i 's/\(root:\)[^:]*\(:\)/\1'`openssl passwd -crypt -salt // "" | sed 's/\(\/\|\\\|&\)/\\&/g'`'\2/' $ROOTDIR/etc/shadow
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||||
sed -i 's/\(PermitEmptyPasswords\) no/\1 yes/' $ROOTDIR/etc/ssh/sshd_config
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||||
echo 'APT::Install-Recommends "0";' > $ROOTDIR/etc/apt/apt.conf.d/99no-install-recommends
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echo 'Acquire::PDiffs "0";' > $ROOTDIR/etc/apt/apt.conf.d/99no-pdiffs
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mkimage -A arm -O linux -T kernel -C none -n uImage -a 0x00008000 -e 0x00008000 -d $ROOTDIR/boot/vmlinuz-*-kirkwood $ROOTDIR/boot/uImage
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mkimage -A arm -O linux -T ramdisk -C none -n uInitrd -d $ROOTDIR/boot/initrd.img-*-kirkwood $ROOTDIR/boot/uInitrd
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#cleanup
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rm $ROOTDIR/sbin/ldconfig $ROOTDIR/usr/bin/ldd
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mv $ROOTDIR/sbin/ldconfig.REAL $ROOTDIR/sbin/ldconfig
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mv $ROOTDIR/usr/bin/ldd.REAL $ROOTDIR/usr/bin/ldd
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rm $ROOTDIR/usr/sbin/policy-rc.d
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rm $ROOTDIR/etc/ssh/ssh_host_*
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cp /etc/resolv.conf $ROOTDIR/etc/resolv.conf
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||||
# need to generate tar inside fakechroot so that absolute symlinks are correct
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fakechroot chroot $ROOTDIR tar -cf $ROOTDIR.tar -C / .
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mv $ROOTDIR/$ROOTDIR.tar .
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tar --delete -f $ROOTDIR.tar ./usr/bin/qemu-arm-static
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rm $ROOTDIR/usr/bin/qemu-arm-static
|
||||
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