packelf/README.md

packelf was inspired by the idea of Klaus D. It is used to pack a ELF program and its dependent libraries into a single executable file.

Usage (packelf):

Usage: ./packelf.sh <ELF_SRC_PATH> <DST_PATH> [ADDITIONAL_LIBS]

First, pack a ELF program. For example, you can pack ls like this:

# ./packelf.sh /bin/ls /root/ls
tar: Removing leading `/' from member names
'/bin/ls' was packed to '/root/ls'
Just run '/root/ls ARGS...' to execute the command.
Or run 'PACKELF_UNPACK_DIR=xxx /root/ls' to unpack it only.

You can execute the packed program directly:

# /root/ls -lh /root/ls 
-rwxr-xr-x 1 root root 1.3M May 21 08:35 /root/ls

However, every time the packed program is executed, an internal unpacking operation is performed automatically, which results in a slower startup of the program.

USAGE EXTRA TOOLS:

Usage: ./packelf-copylibs.sh <ELF_SRC_PATH> <PATH_TO_COPY_LIBRARIES>

Usage: ./packelf-folder.sh <FOLDER> <FILENAME> <EXECUTABLE_RUN>

Dependencies

• sh
• tar
• sed
• grep
• chmod
• readlink
• ldd (only needed for packing, not needed for executing or unpacking)

Note: If your tar doesn't support gzip, '-n' is needed when you pack a program.