Error in Generating VCD with Verilator

[peterhchen]

1. Verilog gerenating is OK.
2. VCD generation is NG.

./run-examples.sh GCD --backend-name verilator
[sbt_options] declare -a sbt_options=()
[process_args] java_version = '8'

Executing command line:

java
-Dfile.encoding=UTF-8
-Xms1024m
-Xmx1024m
-Xss4M
-XX:ReservedCodeCacheSize=128m
-Dsbt.script=/home/peter/.sdkman/candidates/sbt/current/bin/sbt
-jar
/home/peter/.sdkman/candidates/sbt/1.10.6/bin/sbt-launch.jar
"test:runMain examples.Launcher GCD --backend-name verilator"

[info] Loading project definition from /home/peter/chisel-workspace/chisel-tutorial/project
[info] Loading settings for project chisel-tutorial from build.sbt ...
[info] Set current project to chisel-tutorial (in build file:/home/peter/chisel-workspace/chisel-tutorial/)
[warn] Multiple main classes detected. Run 'show discoveredMainClasses' to see the list
[info] running examples.Launcher GCD --backend-name verilator
Starting tutorial GCD
[info] [0.001] Elaborating design...
[info] [0.079] Done elaborating.
cd /home/peter/chisel-workspace/chisel-tutorial/test_run_dir/examples/GCD && verilator --cc GCD.v --assert -Wno-fatal -Wno-WIDTH -Wno-STMTDLY -O1 --top-module GCD +define+TOP_TYPE=VGCD +define+PRINTF_COND=!GCD.reset +define+STOP_COND=!GCD.reset -CFLAGS "-Wno-undefined-bool-conversion -O1 -DTOP_TYPE=VGCD -DVL_USER_FINISH -include VGCD.h" -Mdir /home/peter/chisel-workspace/chisel-tutorial/test_run_dir/examples/GCD --exe /home/peter/chisel-workspace/chisel-tutorial/test_run_dir/examples/GCD/GCD-harness.cpp --trace
make: Entering directory '/home/peter/chisel-workspace/chisel-tutorial/test_run_dir/examples/GCD'
g++ -I. -MMD -I/usr/share/verilator/include -I/usr/share/verilator/include/vltstd -DVM_COVERAGE=0 -DVM_SC=0 -DVM_TRACE=1 -faligned-new -fcf-protection=none -Wno-bool-operation -Wno-sign-compare -Wno-uninitialized -Wno-unused-but-set-variable -Wno-unused-parameter -Wno-unused-variable -Wno-shadow -Wno-undefined-bool-conversion -O1 -DTOP_TYPE=VGCD -DVL_USER_FINISH -include VGCD.h -Os -c -o GCD-harness.o /home/peter/chisel-workspace/chisel-tutorial/test_run_dir/examples/GCD/GCD-harness.cpp
g++ -I. -MMD -I/usr/share/verilator/include -I/usr/share/verilator/include/vltstd -DVM_COVERAGE=0 -DVM_SC=0 -DVM_TRACE=1 -faligned-new -fcf-protection=none -Wno-bool-operation -Wno-sign-compare -Wno-uninitialized -Wno-unused-but-set-variable -Wno-unused-parameter -Wno-unused-variable -Wno-shadow -Wno-undefined-bool-conversion -O1 -DTOP_TYPE=VGCD -DVL_USER_FINISH -include VGCD.h -Os -c -o verilated.o /usr/share/verilator/include/verilated.cpp
g++ -I. -MMD -I/usr/share/verilator/include -I/usr/share/verilator/include/vltstd -DVM_COVERAGE=0 -DVM_SC=0 -DVM_TRACE=1 -faligned-new -fcf-protection=none -Wno-bool-operation -Wno-sign-compare -Wno-uninitialized -Wno-unused-but-set-variable -Wno-unused-parameter -Wno-unused-variable -Wno-shadow -Wno-undefined-bool-conversion -O1 -DTOP_TYPE=VGCD -DVL_USER_FINISH -include VGCD.h -Os -c -o verilated_vcd_c.o /usr/share/verilator/include/verilated_vcd_c.cpp
/usr/bin/perl /usr/share/verilator/bin/verilator_includer -DVL_INCLUDE_OPT=include VGCD.cpp VGCD__Trace.cpp VGCD__Slow.cpp VGCD__Syms.cpp VGCD__Trace__Slow.cpp > VGCD__ALL.cpp
g++ -I. -MMD -I/usr/share/verilator/include -I/usr/share/verilator/include/vltstd -DVM_COVERAGE=0 -DVM_SC=0 -DVM_TRACE=1 -faligned-new -fcf-protection=none -Wno-bool-operation -Wno-sign-compare -Wno-uninitialized -Wno-unused-but-set-variable -Wno-unused-parameter -Wno-unused-variable -Wno-shadow -Wno-undefined-bool-conversion -O1 -DTOP_TYPE=VGCD -DVL_USER_FINISH -include VGCD.h -Os -c -o VGCD__ALL.o VGCD__ALL.cpp
ar -cr VGCD__ALL.a VGCD__ALL.o
ranlib VGCD__ALL.a
/home/peter/chisel-workspace/chisel-tutorial/test_run_dir/examples/GCD/GCD-harness.cpp: In function ‘void vl_finish(const char*, int, const char*)’:
/home/peter/chisel-workspace/chisel-tutorial/test_run_dir/examples/GCD/GCD-harness.cpp:101:14: error: ‘flushCall’ is not a member of ‘Verilated’
101 | Verilated::flushCall();
| ^~~~~~~~~
At global scope:
cc1plus: note: unrecognized command-line option ‘-Wno-undefined-bool-conversion’ may have been intended to silence earlier diagnostics
make: *** [VGCD.mk:60: GCD-harness.o] Error 1
make: *** Waiting for unfinished jobs....
make: Leaving directory '/home/peter/chisel-workspace/chisel-tutorial/test_run_dir/examples/GCD'

Errors: 1: in the following tutorials
Tutorial GCD: throwable assertion failed:

2024-12-25 23:38:34,527 shutdown-hooks-run-all ERROR No Log4j 2 configuration file found. Using default configuration (logging only errors to the console), or user programmatically provided configurations. Set system property 'log4j2.debug' to show Log4j 2 internal initialization logging. See https://logging.apache.org/log4j/2.x/manual/configuration.html for instructions on how to configure Log4j 2