SW4STM32 and SW4Linux fully supports the STM32MP1 asymmetric multicore Cortex/A7+M4 MPUs

   With System Workbench for Linux, Embedded Linux on the STM32MP1 family of MPUs from ST was never as simple to build and maintain, even for newcomers in the Linux world.
And, if you install System Workbench for Linux in System Workbench for STM32 you can seamlessly develop and debug asymmetric applications running partly on Linux, partly on the Cortex-M4.
You can get more information from the ac6-tools website and download two short videos (registration required) highlighting:

System Workbench for STM32

Compiling Demonstration for 32L0538DISCOVERY on SW4STM32

Mr. Shirokuma,
Your can copy configuration from other SW4STM32 projects inside STM32Cube_FW_L0_V1.11.0 library,
or You can create a new one with CubeMX and use it as reference project, after that You can add Your modules or modify already in modules.

I don’t have any built L0 project with me but I attach some screenshot of Setting pages of System Workbench for STM32 for visual reference. It can somehow be of use, even though this is a case of STM32F4 microcontroller.