vpi_get_str: unhandled property arises when BusMonitor object is created

[efedepeo]

Hi,

I'm trying to create a BusMonitor object to be used in a Scoreboard for my testbench. I've just followed the approach of the mean example provided in the repository.

When I try to create the object a lot of vpi_get_str: unhandled property errors appear. Doing some debugging I detected this event arises when the function dir() in _caseInsensGetattr (line 78) of bus.py is called, the call comes from _add_signal in bus.py (line 83). I do not understand what this error means. The signals are called exactly as defined in the top entity.

If I try to create the BusMonitor with the parameter case_insensitive=False, the error disappear.

monitor_outs = MyMonitor(dut, "o", dut.clk, case_insensitive=False)

To complement the information I'm running this on a WSL 22.04, python 3.10.6 with cocotb 1.8.0 and cocotb-bus 0.2.1.

[alexforencich]

What simulator are you using?

[efedepeo]

All this happened with GHDL

[gbowers4]

Currently doing a bit of debugging on this now - seems to be an issue with how the GHDL VPI returns array types.