Makefile_DPDK

SHELL := /bin/bash


A ?= weaver_whitebox.c
C ?= stack_conf
T ?= dpdk
bb := weaver_blackbox.c
wb := weaver_whitebox.template.c
sep = Weaver Auto-generated Blackbox Code

BUILD_DIR = ./build/
APP = procpkts
TARGET_FLAG = -DWV_TARGET_$(T)
export TARGET_FLAG

### GCC ###
GCC = gcc
GCC_OPT = -m64 # -Wall -DNEWEV -Werror

GCC_OPT += -g -DNETSTAT -DINFO -DDBGERR -DDBGCERR
# GCC_OPT += -O3 -DNDEBUG -DNETSTAT -DINFO -DDBGERR -DDBGCERR
GCC_OPT += $(DBG_OPT)

### LIBRARIES AND INCLUDES ###
INC_DIR = ./native
INC= -I$(INC_DIR) -I$(INC_DIR)/runtime -I$(INC_DIR)/runtime/tommyds

### SOURCE FILES ###

# Build using pkg-config variables if possible
ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
$(error "no installation of DPDK found")
endif

LIB_FLAGS += -lstdc++ -lpcre2-8

all: shared
.PHONY: shared static
shared: build/$(APP)-shared
	ln -sf $(APP)-shared build/$(APP)
static: build/$(APP)-static
	ln -sf $(APP)-static build/$(APP)

PKGCONF ?= pkg-config

PC_FILE := $(shell $(PKGCONF) --path libdpdk 2>/dev/null)
CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
# Add flag to allow experimental API as l2fwd uses rte_ethdev_set_ptype API
CFLAGS += -DALLOW_EXPERIMENTAL_API
LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
LDFLAGS_STATIC = $(shell $(PKGCONF) --static --libs libdpdk)

ifeq ($(MAKECMDGOALS),static)
# check for broken pkg-config
ifeq ($(shell echo $(LDFLAGS_STATIC) | grep 'whole-archive.*l:lib.*no-whole-archive'),)
$(warning "pkg-config output list does not contain drivers between 'whole-archive'/'no-whole-archive' flags.")
$(error "Cannot generate statically-linked binaries with this version of pkg-config")
endif
endif


SRC_DIR = $(PWD)
SRCS = $(bb) $(A) native/drivers/$(T).c $(SRC_DIR)/native/runtime/libwvrt.a
DPDK_INC = -I$(SRC_DIR)/native/ -I$(SRC_DIR)/native/runtime -I$(SRC_DIR)/native/runtime/tommyds
CFLAGS += $(DPDK_INC) $(GCC_OPT)
# LDFLAGS += -lpcre2-8

SRCS-y := $(SRCS)

$(SRC_DIR)/native/runtime/libwvrt.a:
	cd $(SRC_DIR)/native/runtime && $(MAKE) -C .


gen:
	# https://stackoverflow.com/a/7104422
	python3 -m rubik $(C) | tee >(sed -e "/$(sep)/,\$$d" > $(wb)) | sed -n -e "/$(sep)/,\$$w $(bb)"

test: test_seq
	./test_seq

test_seq: native/runtime/seq_test.c native/runtime/seq.h
	$(GCC) -o test_seq native/runtime/seq_test.c

build/$(APP)-shared: $(SRCS-y) Makefile_DPDK $(PC_FILE) | build
	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED) $(TARGET_FLAG)

build/$(APP)-static: $(SRCS-y) Makefile_DPDK $(PC_FILE) | build
	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_STATIC) $(TARGET_FLAG)

build:
	@mkdir -p $@

.PHONY: clean
clean:
	rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
	test -d build && rmdir -p build || true
	-$(RM) procpkts $(wb) $(bb)
	-$(RM) -rf build/
	-$(RM) native/weaver.h.gch
	-$(RM) test_seq
	$(MAKE) -C native/runtime clean