crosskit-mingw-w64-libpython

This repository contains the pre-generated libpython*.dll import libraries and headers for the MinGW-w64, in order to facilitate Linux-to-Windows cross compilation of the programs that depend on the libpython*.dll (e.g. GDB).

Note that the import libraries in this repository do not target the MSYS2 Python DLLs; instead, they target the native Windows Python distribution from the official Python website.

SUPERHACK WARNING! This repository also contains a special shell script (${LIBPYTHON_KIT_ROOT}/bin/python) that emulates the GDB build system python-config.py to allow the Linux GDB build system to resolve the include and lib paths for the Windows Python.

Generate a new kit

Follow the steps below to generate a new cross libpython kit:

1. Download and install x86-64 Python distribution from the Python website.

2. Create a kit root directory (referred to as ${LIBPYTHON_KIT_ROOT} in this document).

3. Copy Python include directory to the kit root directory, such that the contents of the include directory resides in ${LIBPYTHON_KIT_ROOT}/include.

4. Copy Python python[maj][min].dll (e.g. python38.dll for Python 3.8) to ${LIBPYTHON_KIT_ROOT}/lib.

5. Run the following commands in ${LIBPYTHON_KIT_ROOT}/lib directory to generate an import library (using Python 3.8 as example):

   gendef python38.dll
   x86_64-w64-mingw32-dlltool -D python38.dll -d python38.def -l libpython38.a

Build GDB

/usr/local/src/gdb-9.1/configure \
    --build=x86_64-build_pc-linux-gnu \
    --host=x86_64-w64-mingw32 \
    --target=arm-none-eabi \
    --prefix=<OUTDIR> \
    --with-python=${LIBPYTHON_KIT_ROOT}/bin/python