Generate coverage information with ghdl

[danselmi]

Hi,

I like to generate coverage information for a core with ghdl (gcc backend). For this i need to add these options: -Wc,-fprofile-arcs -Wc,-ftest-coverage -Wl,-lgcovduring make phase (ghdl -m) but not for the import (ghdl -i). GHDL complains if these options are present during import.

When I add these options to targets:sim:tools:ghdl:analyze_options they are added to both phases.

Is it possible to add options only to make phase? Or is there another solution?

Thanks in advance

[m-kru]

Do you have an error message for ghdl -i when -lgcov is added?

[danselmi]

Yes, I got the following error message: ghdl:error: unknown command option '-lgcov'

[olofk]

The most straight-forward way would be to add a new backend option to split up the -i and -m options. But! I was halfway through a rewrite of the ghdl backend some months ago and I have a vague memory that I planned to drop the -i -m flow in favor of some other flow. Unfortunately I can't remember the details and I never manage to learn how ghdl works. I mention this because there might be bigger changes needed and if so, I want to get this right from the start