ethereumjs-ovm
Implements Optimism's OVM in Javascript. Forked with <3 from ethereumjs-vm!
Logging
This fork provides some custom logging tools for introspecting the OVM via the debug package. Particularly, the environment variable DEBUG='ethjs-ovm:interpreter will allow you to log various degrees of internal EVM execution such as calls, stack, and memory.
You must also add DEBUG_OVM=true to enable debugging.
The logging namespace includes the start and ending bytes of the address and the call depth (e.g. js-ovm:intrp:0xdeadde..ad0005:d5)
Available namespaces are:
- All OVM debug logging (warning, lots of logs):
DEBUG='*' - Call logging:
DEBUG='*:calls(recommended to run first) - Step logging:
DEBUG='*:calls:steps(recommended to run filtered by address, e.g.DEBUG='*:calls,js-ovm:intrp:0xdeadde..ad0005:d2:calls:steps') - Memory logging:
DEBUG=*:calls:memory(recommended to run filtered by address, see above)
Or mix and match any of the above to get your desired logging level.