Recommended Procedure to Install Legacy Version of Zephyr and West Toolchain

[bob2oneil]

I am building an application that has been in development for various versions of Zephyr for over a year.

This latest versions is identified by the following banner, while is compiles for the Native-POSIX target, crashes and burns badly during
execution. I am unable to launch my main() C++ application anymore. From single stepping into the source code, it appears that the background thread which invokes main() in the application -- seems to blow up during C++ initialization for reasons unknown. This has not occurred for Zephyr releases dating back to Dec of 2023.

I generally follow the described install procedure which utilizes the python based 'west' to install Zephyr proper.

Assuming I wanted to effectively do a rollback to a version which did not crash and burn in Native-POSIX, what is the recommended procedure?

Is it as simple as making a legacy branch checked out in GIT, and performing a manual copy over the existing /zephyrproject/zephyr folder, or would that mix legacy rollback and later release components resulting in indeterminate behaviors?

What is the recommended procedure to do a complete rollback to say a Dec 2022 release?

-- Zephyr version: 3.2.99 (/zephyrproject/zephyr), build: zephyr-v3.2.0-3473-g9d2fe69b4efc

[yashi]

cd zephyr
git checkout v3.2.0
git show -s --pretty=format:%cd
west update

Make sure to run west update after each checkout. This command updates/rollbacks Zephyr Modules at the time of the commit.

If v3.2 works, try bisecting it to find which commit is causing the crash you are seeing.

[bob2oneil]

Many thanks