How do I build in debug mode?

[Rodrigodd]

I am trying to investigate #2767 with the help of a debugger, but for that I need to build the project in debug mode.

From #2045, it appears that I would need to add CFG_BUILD_TYPE := debug to buildconfig.user.mk, but I believe that since then this build type has been removed. Now there is only:

override ALL_ALLOWED_BUILD_TYPES := release asan plugin pysynlig

Any of those options correspond to the debug build? or there is any other way to configure the build in debug mode?

[alaindargelas]

You can use the alternate build system: https://github.com/chipsalliance/synlig/blob/2d838edc951fed056d2b5bf21a40ce1d161c24ba/cmake-makefile#L35

make -f cmake-makefile run-cmake-debug

[Rodrigodd]

Thanks!

Just to clarify, this alternate build system does not generate the synlig binary, right?

Do I need to use out/current/bin/yosys -m systemverilog (or plugin -i systemverilog in the Yosys REPL), despite this warning?

yosys> plugin -i systemverilog
Warning: Using synlig as a Yosys plugin is deprecated. It is recommended to build synlig as a standalone binary.

[alaindargelas]

Correct, use yosys and ignore the warning. In yosys/Makefile you can also change the -03 into -g

[Rodrigodd]

I also notice that the yosys binary installed in out/ is stripped. So I create a symlink at third_party/yosys/share/plugins/systemverilog.so pointing to out/current/share/yosys/plugins/systemverilog.so.1.82, and run yosys from third_party/yosys/yosys.