&gt; As an aside, I imagine &quot;A2L&quot; is short for addr2line.<p>A2L is for &quot;ASAM MCD-2 MC Language&quot; [0] (but it does contain addresses for internal variables and associated information related to the interpretation of the variable&#x27;s meta data, so your guess makes sense).<p>Mostly, A2L files are generated by using the concrete addresses from an ELF file to fill a template A2L file. This file can be used with something called &quot;application tool&quot;, which is mostly either Vector CANape or ETAS Inca, to either manipulate or read out the variable values from the live ECU via the XCP&#x2F;CCP protocol. XCP also contains mechanisms for so called bypass operation, where stimuli that are generally received via sensors are fed from the host PC (used mainly in stand-alone test scenarios for the ECU).<p>[0] <a href="https:&#x2F;&#x2F;wiki.asam.net&#x2F;display&#x2F;STANDARDS&#x2F;ASAM+MCD-2+MC" rel="nofollow">https:&#x2F;&#x2F;wiki.asam.net&#x2F;display&#x2F;STANDARDS&#x2F;ASAM+MCD-2+MC</a>