Documentation and minor additions for setup.sh

setup.sh

@@ -8,16 +8,23 @@ git submodule update --init --recursive
 # Install Python dependencies
 sudo pip install -Ur requirements.txt
 
+# Find the path to the Python interpreter used by GDB.
 PYTHON=$(gdb -batch -q --nx -ex 'pi import sys; print(sys.executable)')
 
+# Find the path to the Python2 interpreter needed by the Unicorn install process.
+export UNICORN_QEMU_FLAGS="--python=$(which python2)"
+
+# Install both Unicorn and Capstone
 for directory in capstone unicorn; do
     pushd $directory
+    git clean -xdf
     sudo ./make.sh install
     cd bindings/python
     sudo ${PYTHON} setup.py install
     popd
 done
 
+# Load Pwndbg into GDB on every launch.
 if ! grep pwndbg ~/.gdbinit &>/dev/null; then
     echo "source $PWD/pwndbg/gdbinit.py" >> ~/.gdbinit
 fi