kounkou / walter

Walter is a tool that enables deploying any application conforming to ELF x-bit LSB shared object, and dynamically linked

walter

Introduction

Walter is a tool that enables deploying any application conforming to
ELF x-bit LSB shared object, and dynamically linked
This tool will be useful for those who have a binary and have no idea
how to grab all the dependencies and export them elsewhere.

example

Imagine you just built an application with Qt
Usually, the scenario is the following. Let's start with a
very simple example.

kaloudis@kaloudis:$ cat test.cpp 
#include <bits/stdc++.h>
#include <QObject>

using namespace std;

int main() {
    return 0;
}

Then we can just compile and see the different dependencies of the application

kaloudis@kaloudis:$ qmake -project && qmake && make && ldd QtWalker
	linux-vdso.so.1 (0x00007ffe7c15a000)
	libQt5Core.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 (0x00007f5019ddf000)
	libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f5019a56000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f5019665000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f5019446000)
	libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f5019229000)
	libicui18n.so.60 => /usr/lib/x86_64-linux-gnu/libicui18n.so.60 (0x00007f5018d88000)
	libicuuc.so.60 => /usr/lib/x86_64-linux-gnu/libicuuc.so.60 (0x00007f50189d1000)
	libdouble-conversion.so.1 => /usr/lib/x86_64-linux-gnu/libdouble-conversion.so.1 (0x00007f50187c0000)
	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f50185bc000)
	libglib-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f50182a6000)
	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f5017f08000)
	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f5017cf0000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f501a72c000)
	libicudata.so.60 => /usr/lib/x86_64-linux-gnu/libicudata.so.60 (0x00007f5016147000)
	libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f5015ed5000)

From there, it's easy to launch Walter

kaloudis@kaloudis:$ bash walter.sh QtWalker

The result is generated in the current directory

kaloudis@kaloudis:$ ls packages
total 43528
drwxr-xr-x 2 godbod godbod     4096 Jan  4 00:58 ./
drwxr-xr-x 3 godbod godbod     4096 Jan  4 00:59 ../
-rwxr-xr-x 1 godbod godbod   170960 Jan  4 00:58 ld-linux-x86-64.so.2*
-rwxr-xr-x 1 godbod godbod  2030544 Jan  4 00:58 libc.so.6*
-rw-r--r-- 1 godbod godbod    14560 Jan  4 00:58 libdl.so.2
-rw-r--r-- 1 godbod godbod    67648 Jan  4 00:58 libdouble-conversion.so.1
-rw-r--r-- 1 godbod godbod    96616 Jan  4 00:58 libgcc_s.so.1
-rw-r--r-- 1 godbod godbod  1133872 Jan  4 00:58 libglib-2.0.so.0
-rw-r--r-- 1 godbod godbod 26904264 Jan  4 00:58 libicudata.so.60
-rw-r--r-- 1 godbod godbod  2754872 Jan  4 00:58 libicui18n.so.60
-rw-r--r-- 1 godbod godbod  1792008 Jan  4 00:58 libicuuc.so.60
-rw-r--r-- 1 godbod godbod  1700792 Jan  4 00:58 libm.so.6
-rw-r--r-- 1 godbod godbod   464824 Jan  4 00:58 libpcre.so.3
-rwxr-xr-x 1 godbod godbod   144976 Jan  4 00:58 libpthread.so.0*
-rw-r--r-- 1 godbod godbod  5536104 Jan  4 00:58 libQt5Core.so.5
-rw-r--r-- 1 godbod godbod  1594832 Jan  4 00:58 libstdc++.so.6
-rw-r--r-- 1 godbod godbod   116960 Jan  4 00:58 libz.so.1
-rwxr-xr-x 1 godbod godbod     8656 Jan  4 00:58 QtWalker*

Enjoy !