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######################################################################
#
# DESCRIPTION: Verilator Example: Small Makefile
#
# This calls the object directory makefile. That allows the objects to
# be placed in the "current directory" which simplifies the Makefile.
#
# Copyright 2003-2019 by Wilson Snyder. This program is free software; you can
# redistribute it and/or modify it under the terms of either the GNU
# Lesser General Public License Version 3 or the Perl Artistic License
# Version 2.0.
#
######################################################################
# Check for sanity to avoid later confusion
ifneq ($(words $(CURDIR)),1)
$(error Unsupported: GNU Make cannot build in directories containing spaces, build elsewhere: '$(CURDIR)')
endif
######################################################################
# This is intended to be a minimal example. Before copying this to start a
# real project, it is better to start with a more complete example,
# e.g. examples/tracing_sc.
# If $VERILATOR_ROOT isn't in the environment, we assume it is part of a
# package inatall, and verilator is in your path. Otherwise find the
# binary relative to $VERILATOR_ROOT (such as when inside the git sources).
ifeq ($(VERILATOR_ROOT),)
VERILATOR = verilator
else
export VERILATOR_ROOT
VERILATOR = $(VERILATOR_ROOT)/bin/verilator
endif
# Check if SC exists via a verilator call (empty if not)
SYSTEMC_EXISTS := $(shell $(VERILATOR) --getenv SYSTEMC_INCLUDE)
ifneq ($(SYSTEMC_EXISTS),)
default: run
else
default: nosc
endif
run:
@echo "-- Verilator hello-world simple example"
@echo "-- VERILATE ----------------"
$(VERILATOR) -sc --exe top.v sc_main.cpp
@echo "-- COMPILE -----------------"
$(MAKE) -j 4 -C obj_dir -f Vtop.mk
@echo "-- RUN ---------------------"
obj_dir/Vtop
@echo "-- DONE --------------------"
@echo "Note: Once this example is understood, see examples/tracing_sc."
@echo "Note: Also see the EXAMPLE section in the verilator manpage/document."
######################################################################
nosc:
@echo
@echo "%Skip: SYSTEMC_INCLUDE not in environment"
@echo "(If you have SystemC see the README, and rebuild Verilator)"
@echo
maintainer-copy::
clean mostlyclean distclean maintainer-clean::
-rm -rf obj_dir *.log *.dmp *.vpd core
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