Error building the simulation

[Inky-13]

I am currently trying to build the simulation of the demo SoC and I am getting the following error:

ERROR: ../src/lowrisc_dv_verilator_ibex_pcounts_0/cpp/ibex_pcounts.cc: In function ‘std::string ibex_pcount_string(bool)’:
../src/lowrisc_dv_verilator_ibex_pcounts_0/cpp/ibex_pcounts.cc:80:41: warning: ‘longest_name_length’ may be used uninitialized [-Wmaybe-uninitialized]
   80 |       int padding = longest_name_length - ibex_counter_names[i].length();
      |                     ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../src/lowrisc_dv_verilator_ibex_pcounts_0/cpp/ibex_pcounts.cc:56:26: note: ‘longest_name_length’ was declared here
   56 |   std::string::size_type longest_name_length;
      |                          ^~~~~~~~~~~~~~~~~~~
/usr/share/verilator/include/verilated_fst_c.cpp: In member function ‘void VerilatedFst::declare(uint32_t, const char*, int, VerilatedTraceSigDirection, VerilatedTraceSigKind, VerilatedTraceSigType, bool, int, bool, int, int)’:
/usr/share/verilator/include/verilated_fst_c.cpp:220:27: warning: ‘varDir’ may be used uninitialized [-Wmaybe-uninitialized]
  220 |         fstWriterCreateVar(m_fst, varType, varDir, bits, name_str.c_str(), it->second);
      |         ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/share/verilator/include/verilated_fst_c.cpp:177:15: note: ‘varDir’ was declared here
  177 |     fstVarDir varDir;
      |               ^~~~~~
Vtop_verilator__Trace__0__Slow.cpp: In function ‘void Vtop_verilator___024root__trace_init_sub__TOP__0(Vtop_verilator___024root*, VerilatedFst*)’:
Vtop_verilator__Trace__0__Slow.cpp:5949:125: error: expected unqualified-id before ‘,’ token
 5949 |     tracep->declQuad(c+206,0,"ctx",-1, VerilatedTraceSigDirection::NONE, VerilatedTraceSigKind::VAR, VerilatedTraceSigType::, false,-1, 63,0);
      |                                                                                                                             ^
make[1]: *** [/usr/share/verilator/include/verilated.mk:275: Vtop_verilator__Trace__0__Slow.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:13: Vtop_verilator] Error 2

ERROR: Failed to build lowrisc:ibex:demo_system:0 : '['make', '-j', '4']' exited with an error:

I have installed the dependencies in my python environment. I also installed the provided tool-chain and ran the fusesoc command in the README. I also trying building the Ibex core itself (separate repo) with the simple config and that seemed to work.

Has anyone encountered this?

[marnovandermaas]

Curious, what command did you use exactly?

The other things that would be useful to know are some versions, these are mine:

$ verilator --version
Verilator 5.024 2024-04-05 rev v5.024
$ which fusesoc
.venv/bin/fusesoc
$ fusesoc --version
0.1

[Inky-13]

Curious, what command did you use exactly?

The other things that would be useful to know are some versions, these are mine:

$ verilator --version
Verilator 5.024 2024-04-05 rev v5.024
$ which fusesoc
.venv/bin/fusesoc
$ fusesoc --version
0.1

I am on an Ubuntu 24 VM
Here are the versions:

verilator --version
Verilator 5.020 2024-01-01 rev (Debian 5.020-1)
which fusesoc
/home/inky13/workspace/ibex-demo-system/.venv/bin/fusesoc
fusesoc --version
0.1

and this is the command I am using to build the simulation

fusesoc --cores-root=. run --target=sim --tool=verilator --setup --build lowrisc:ibex:demo_system

I get these warnings immediuatelly after running the command:

WARNING: Unknown item flags in section Target
WARNING: Unknown item flags in section Target
WARNING: Unknown item flags in section Target

@marnovandermaas I am not sure what I am doing wrong I was also wondering if Ubuntu could be the issue but I seem to be able to build the Ibex core with the simple config

[Inky-13]

I was able to checkout release v0.0.3 and it worked just fine. Usure what the issue is with main.

This commit seems to be the one breaking things for me.