To be consistent between projects, this PR updates the Verilator
version to 4.210, which is also used by OpenTitan. The reason for
this change is that in #2129 Verilator linting issues occured
that did not occur in OpenTitan.
Closes#2131.
Signed-off-by: Pascal Nasahl <nasahlpa@lowrisc.org>
It turns out that we use split_var in the code, which was added in
version 4.030 (and several bugs were fixed in following versions).
Change the minimum required version to match what we're using in
CI (and presumably works!)
This was triggered by issue #2080.
We need this specific edalize version because recent verilators have
got pickier about string parameter passing, breaking the
"MultiplierImplementation" parameter.
As well as teaching check_tool_requirements.py to get the edalize
version from pip3, this patch also does a bit of tidying up, coping
better if tool_requirements.py is missing or malformed.
Verilator will soon support the configuration file syntax of wildcard
matches for linter warnings to waive. Switch to the new syntax that
avoids line-based rule settings.
Define supported tool versions in tool_requirements.py, and check them
in a fusesoc run. If an unsupported tool version is found, fusesoc
outputs an error like this:
```
$ fusesoc --cores-root . run --target=lint lowrisc:ibex:ibex_core
INFO: Preparing lowrisc:ibex:check_tool_requirements:0.1
INFO: Preparing lowrisc:prim:assert:0.1
INFO: Preparing lowrisc:ibex:sim_shared:0
INFO: Preparing lowrisc:ibex:ibex_core:0.1
INFO: Setting up project
INFO: Running pre_build script check_tool_requirements
ERROR: verilator is too old: found version 4.010, need at least 4.028
ERROR: Tool requirements not fulfilled. Please update the tools and retry.
ERROR: Failed to build lowrisc:ibex:ibex_core:0.1 : pre_build script 'check_tool_requirements' exited with error code 1
```
The only version checked at this point is Verilator, which is set
somewhat arbitrarily to the version used by me (and I know it works). CI
uses a slightly newer version. As we are about to merge changes soon
which require a newer Verilator version, there's not much point in
finding the oldest supported version right now.
