Is it possible to build Single GCC Executable for armv5, armv6, armv7-{cortex-xx-{A,R,M}},armv8 etc.?

[Israr Sayed]

Digging into the sources of GCC I noticed in files gcc/config/arm/t-*, There are multiple arm target options.

Reading [GCC internal Manual], These are called Target Makefile Fragments, which will be included in main Makefile, like MULTILIB_OPTIONS, MULTILIB_DIRNAMES, MULTILIB_MATCHES, MULTILIB_REQUIRED, MULTILIB_REUSE, MULTILIB_EXTRA_OPTS, MULTILIB_OSDIRNAMES, MULTIARCH_DIRNAME.

What I am not able to understand that how to bring it in at the time of configure.Which option to choose?

More over is it possible to edit those t-* files as per the requirement and how?
Please Help.