How to get info about the system image?

Hi,
I have build a system image following https://docs.julialang.org/en/release-0.4/devdocs/sysimg/
It works nicely and produce efficient AVX code.
I wonder if I can recover information about the system image used for a given Julia run, like compile options (I want to collect relevant information about benchmark experiments).
Thank you for your help.
Laurent