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# Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
# TODO:
# - Separate rule for nvgpu_unit shared library
# - Proper header dependency checking.
# Turn off suffix rules. They are deprecated.
.SUFFIXES:
# Full paths. Makes submakefiles easier. That said this make file _must_ be run
# from <NVGPU>/userspace/.
TWD=$(CURDIR)
# Top level out dir.
OUT=$(TWD)/build
# Core unit test framework.
CORE_SRC=$(TWD)/src
CORE_OUT=$(OUT)/nvgpu_unit_core
# Nvgpu driver code.
NVGPU_SRC=$(TWD)/../drivers/gpu/nvgpu
NVGPU_OUT=$(OUT)/libnvgpu
# Unit tests themselves.
UNIT_SRC=$(TWD)/units
UNIT_OUT=$(OUT)/units
INCLUDES= \
-I$(NVGPU_SRC) \
-I$(NVGPU_SRC)/include \
-I$(TWD)/../include \
-I$(TWD)/../include/uapi \
-I$(TWD)/include
CONFIGS=-D__NVGPU_POSIX__
# Compiler, c-flags, etc.
# CC = clang
CC = gcc
CFLAGS = -Wall -ggdb -Werror -fPIC $(INCLUDES) $(CONFIGS)
CFLAGS = -Wall -Wextra -ggdb -Werror -Wno-unused-parameter \
-Wno-missing-field-initializers -Wformat -Wchar-subscripts \
-Wparentheses -Wtrigraphs -Wpointer-arith -Wmissing-declarations \
-Wmissing-prototypes -Wredundant-decls -Wmain -Wreturn-type \
-Wmultichar -Wunused -Wmissing-braces -Wstrict-aliasing \
-Wsign-compare -Waddress -Wno-unused-local-typedefs -fPIC \
$(INCLUDES) $(CONFIGS)
LIB_PATHS = -L$(OUT)
LIBS = -lpthread -pthread -lgcov -ldl
# Source files. We expect $(OBJS) and $(HEADERS) to get filled in here.
include Makefile.sources
# Linuxy configs. We want these so that we can mirror builds from the actual
# Linux kernel.
include Makefile.configs
all: $(OUT)/nvgpu_unit $(UNITS)
# Convenience targets.
.PHONY: libnvgpu core units
libnvgpu: $(OUT)/libnvgpu-drv.so
core: $(OUT)/nvgpu_unit
units: $(UNITS)
# Note the weird libnvgpu_unit.so file: this is a bit of a hack. It lets the
# unit tests link back against the nvgpu_unit executable so that they can call
# functions (like unit_info()) directly. This shared library isn't actually
# used for anything beyond that.
#
# Also it really should have its own rule...
$(OUT)/nvgpu_unit: $(OUT)/libnvgpu-drv.so $(CORE_OBJS)
$(CC) -shared -o $(OUT)/libnvgpu_unit.so \
$(CORE_OBJS) $(LIB_PATHS) $(LIBS)
$(CC) --coverage \
-o $(OUT)/nvgpu_unit $(CORE_OBJS) $(LIB_PATHS) $(LIBS)
$(OUT)/libnvgpu-drv.so: $(OBJS)
$(CC) -shared -o $(OUT)/libnvgpu-drv.so $(OBJS) -lgcov
# Default build target for all the nvgpu driver object files we want to build in
# userspace. These get bundled into libnvgpu-drv.so.
$(NVGPU_OUT)/%.o : $(NVGPU_SRC)/%.c $(HEADERS)
@if [ ! -d $(dir $@) ] ; then \
mkdir -p $(dir $@) ; \
fi
$(CC) --coverage $(CFLAGS) $(configs) -c -o $@ $<
# Build target for unit test files. These are not part of the libnvgpu-drv.so.
# These comprise the unit test framework.
$(CORE_OUT)/%.o : $(CORE_SRC)/%.c $(CORE_HEADERS)
@if [ ! -d $(dir $@) ] ; then \
mkdir -p $(dir $@) ; \
fi
$(CC) --coverage $(CFLAGS) $(configs) -c -o $@ $<
# Certain variables should be exported to the unit test module builds.
export TWD INCLUDES CONFIGS UNIT_SRC UNIT_OUT
export CC CFLAGS LIB_PATHS LIBS
.PHONY: $(UNITS)
$(UNITS): $(OUT)/libnvgpu-drv.so
@echo "Building unit module: $@"
@+$(MAKE) --no-print-directory -C $@
.PHONY: clean nvgpu_clean core_clean unit_clean
clean: nvgpu_clean core_clean unit_clean
rm -rf $(OUT)
nvgpu_clean:
rm -rf $(OUT)/libnvgpu*
core_clean:
rm -rf $(OUT)/nvgpu_unit*
unit_clean:
@for d in $(UNITS); do \
echo Cleaning $$d; \
$(MAKE) --no-print-directory -C $$d clean; \
done
rm -rf $(OUT)/units
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