"stefan.hristozov via Lists.Zephyrproject.Org"
If you want to see what 'west build' is doing, just run it in verbose
mode with -v, like this:
$ west -v build -b reel_board samples/hello_world
This prints every cmake command line before it is run (search for
"Running CMake:" in the command output), and also enables verbose
compiler command lines.
You can also run 'west -v flash', 'west -v debug', etc. to see the
commands they run.
That should be all you want to know and more :). Please let me know if
those commands' output doesn't contain what you're looking for.