anchor.diff:      cp -r gdb/gdb/data-directory /usr/local/share/gdb && \
       rm -rf ~/symgdb/gdb ; \
       rm -f ~/symgdb/gdb-*.tar.gz ; \
  -    echo "source ~/symgdb/symgdb.py" >> ~/.gdbinit
  +    echo "source ~/symgdb/symgdb.py" >> ~/.gdbinit ; \
  +    echo "set debug-file-directory /usr/lib/debug" >> ~/.gdbinit
   
   RUN cd ~ && \
       wget https://github.com/sqlmapproject/sqlmap/tarball/master --output-document=sqlmap.tar.gz && \
  
positive.code:         xz-utils nmap john strace ltrace gcc g++ libc6-dev-i386 \
          gdbserver lib32stdc++6 libxml2-dev libxslt1-dev libssl-dev nasm \
          libboost1.58-dev libpython2.7-dev libc6-dbg libc6-dbg:i386 sudo \
          net-tools dnsutils iputils-ping netcat qemu
  
  RUN pushd ~ && \
      git clone https://github.com/Happyholic1203/dotfiles && \
  
negative.code: RUN pip install --upgrade setuptools && \
      pip install ipython==5.7.0 && \
      pip install pwntools && \
      pip install ropgadget && \
      rm -rf ~/.cache/pip && \
      cd ~ && \
      git clone https://github.com/JonathanSalwan/ROPgadget
  
  RUN export tmp=$(mktemp -d) && \
      pushd $tmp && \
  