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FEA-Bench
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###############################################################################
# Copyright (c) 2013, 2018 Potential Ventures Ltd
# Copyright (c) 2013 SolarFlare Communications Inc
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
#     * Neither the name of Potential Ventures Ltd,
#       SolarFlare Communications Inc nor the
#       names of its contributors may be used to endorse or promote products
#       derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL POTENTIAL VENTURES LTD BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
###############################################################################

# This file includes an appropriate makefile depending on the SIM variable.

.PHONY: all
all: sim

# NOTE: keep this at 80 chars.
define help_targets =
Targets
=======
sim                       Unconditionally re-run the simulator (default)
regression                Run simulator when dependencies have changes
clean                     Remove build and simulation artefacts
help                      This help text

endef

# NOTE: keep this at 80 chars.
define help_makevars =
Variables
=========

The following variables are makefile variables:

Makefile-based Test Scripts
---------------------------
GUI                       Set this to 1 to enable the GUI mode in the simulator
SIM                       Selects which simulator Makefile to use
WAVES                     Enable wave traces dump for Riviera-PRO and Questa
VERILOG_SOURCES           A list of the Verilog source files to include
VHDL_SOURCES              A list of the VHDL source files to include
VHDL_SOURCES_<lib>        VHDL source files to include in *lib* (GHDL/NVC/ModelSim/Questa/Xcelium/Incisive only)
VHDL_LIB_ORDER            Compilation order of VHDL libraries (needed for NVC/ModelSim/Questa/Xcelium/Incisive)
SIM_CMD_PREFIX            Prefix for simulation command invocations
COMPILE_ARGS              Arguments to pass to compile (analysis) stage of simulation
SIM_ARGS                  Arguments to pass to execution of compiled simulation
EXTRA_ARGS                Arguments for compile and execute phases
PLUSARGS                  Plusargs to pass to the simulator
COCOTB_HDL_TIMEUNIT       Default time unit for simulation
COCOTB_HDL_TIMEPRECISION  Default time precision for simulation
CUSTOM_COMPILE_DEPS       Add additional dependencies to the compilation target
CUSTOM_SIM_DEPS           Add additional dependencies to the simulation target
SIM_BUILD                 Define a scratch directory for use by the simulator
SCRIPT_FILE               Simulator script to run (for e.g. wave traces)

endef


# NOTE: keep *two* empty lines between "define" and "endef":
define newline


endef

# this cannot be a regular target because of the way Makefile.$(SIM) is included
ifeq ($(MAKECMDGOALS),help)
    $(info $(help_targets))
    $(info $(help_makevars))
    # hack to get newlines in output, see https://stackoverflow.com/a/54539610
    # NOTE: the output of the command must not include a '%' sign, otherwise the formatting will break
    help_envvars := $(subst %,${newline},$(shell cocotb-config --help-vars | tr \\n %))
    $(info ${help_envvars})
    # is there a cleaner way to exit here?
    $(error Stopping after printing help)
endif

# Default to Icarus if no simulator is defined
SIM ?= icarus

# Maintain backwards compatibility by supporting upper and lower case SIM variable
SIM_LOWERCASE := $(shell echo $(SIM) | tr A-Z a-z)

# Directory containing the cocotb Makfiles
COCOTB_MAKEFILES_DIR := $(shell cocotb-config --makefiles)

include $(COCOTB_MAKEFILES_DIR)/Makefile.deprecations

HAVE_SIMULATOR = $(shell if [ -f $(COCOTB_MAKEFILES_DIR)/simulators/Makefile.$(SIM_LOWERCASE) ]; then echo 1; else echo 0; fi;)
AVAILABLE_SIMULATORS = $(patsubst .%,%,$(suffix $(wildcard $(COCOTB_MAKEFILES_DIR)/simulators/Makefile.*)))

ifeq ($(HAVE_SIMULATOR),0)
    $(error Couldn't find makefile for simulator: "$(SIM_LOWERCASE)"! Available simulators: $(AVAILABLE_SIMULATORS))
endif

include $(COCOTB_MAKEFILES_DIR)/simulators/Makefile.$(SIM_LOWERCASE)