Tensilica Xtensa module for Ghidra

Installation

$ cd ghidra_9.1.X/Ghidra/Processors
$ git clone https://github.com/yath/ghidra-xtensa Xtensa
$ cd Xtensa
$ make
$

Or download a pre-built release and unzip it to Ghidra/Processors.

Probably a lot in instructions I did not yet happen to encouter. Pull requests appreciated.