Port of Python 2.7.3 to ZeroVM

List of supported modules/features is here

Nightly-built distribution

Nightly builds of zpython2 (tarball) are available here.

Building python for ZeroVM

Prerequisites

You will need a working toolchain from zerovm-toolchain

Build and install from zerovm-ports

zlib
bzip2

Build and install libffi from libffi

Build host pgen

Host python binary and host pgen binary will be used for cross-compilation

Run helper script ./1build_pgen.sh

or run:

cd zpython2
./configure
make host

export ZPYTHON_ROOT=`pwd`

Now you can either build a debug version or a release one

Building debug version

Run helper script ./2build_zpython.sh

or run:

cd zpython2

./configure \
--host=x86_64-nacl \
--prefix=/ \
--without-threads \
--enable-shared=no \
--disable-shared \
--with-system-ffi \
--with-pydebug \
PYTHONPATH=${ZPYTHON_ROOT}/Lib:${ZPYTHON_ROOT} \
PYTHONHOME=${ZPYTHON_ROOT}/install \
LDFLAGS="-m64 -Wl,--no-export-dynamic -static-libgcc"


HOSTPYTHON=/usr/bin/python \
HOSTPGEN=${ZPYTHON_ROOT}/Parser/hostpgen \
PYTHONPATH=${ZPYTHON_ROOT}/Lib:${ZPYTHON_ROOT} \
PYTHONHOME=${ZPYTHON_ROOT}/install \
make python install \
DESTDIR=${ZPYTHON_ROOT}/install

Make sure that HOSTPYTHON variable above points to your host python binary

Building release version

Run helper script ./2build_zpython.sh release

or run:

cd zpython2

./configure \
--host=x86_64-nacl \
--prefix=/ \
--without-threads \
--enable-shared=no \
--disable-shared \
--with-system-ffi \
PYTHONPATH=${ZPYTHON_ROOT}/Lib:${ZPYTHON_ROOT} \
PYTHONHOME=${ZPYTHON_ROOT}/install \
LDFLAGS="-m64 -Wl,--no-export-dynamic -static-libgcc"


HOSTPYTHON=/usr/bin/python \
HOSTPGEN=${ZPYTHON_ROOT}/Parser/hostpgen \
PYTHONPATH=${ZPYTHON_ROOT}/Lib:${ZPYTHON_ROOT} \
PYTHONHOME=${ZPYTHON_ROOT}/install \
make python install \
DESTDIR=${ZPYTHON_ROOT}/install

x86_64-nacl-strip python

Make sure that HOSTPYTHON variable above points to your host python binary

Creating python.tar image

The helper script ./2build_zpython.sh will create a python.tar file in zpython2 dir.

or run:

tar cf python.tar -C ${ZPYTHON_ROOT} python \
-C ${ZPYTHON_ROOT}/install include/ lib/ \
--exclude=libpython2.7.a

We can create tar image from either debug or release version, debug version will print some stuff to stderr on each run.