[dpdk-users] how to add own header files when compiling

[曾懷恩 <the@csie.io>]

Hi, 

I am new to DPDK

I have two questions when I develop my project

first is i have a large project and wants to link my pre-compiled static libraries and my code to another code which call rte_ functions

 the source code tree looks like

--main.c
   foo.c
   foo.h
   dpdk_foo.c
   --com_util/xxx.c
     		   xxx.h
		   ooo.c
		   ooo.h
		   libcom_util.a

so i modify my makefile and dpdk example makefile to 

######################################
# Set variable
######################################
INCLUDE += -I. -I./com_util
CFLAGS += $(INCLUDE) -Wall -fPIC -g -std=c99 -D_XOPEN_SOURCE=700 -D_BSD_SOURCE

SUBDIRS := com_util dpdk

APP = pppoeclient

# all source are stored in SRCS-y
SRCS-y := pppd.c sock.c fsm.c codec.c dpdk_send.c

# Build using pkg-config variables if possible
$(shell pkg-config --exists libdpdk)

ifeq ($(RTE_SDK),)
$(error "Please define RTE_SDK environment variable")
endif

# Default target, can be overridden by command line or environment
RTE_TARGET ?= x86_64-native-linuxapp-gcc

include $(RTE_SDK)/mk/rte.vars.mk
OBJ += $(SRC:.c=.o)
CFLAGS += -O3
CFLAGS += $(WERROR_FLAGS)
LDLIBS += -L./com_util -lcom_util

include $(RTE_SDK)/mk/rte.app.mk
##########################################

assume that libcom_util.a is pre-compiled

when i make, but it returns can’t find include header I defined in com_util directory

is there any solution that can include header files in dpdk foramt makefile?

and the second question is like above but only assuming libcom_util.a is not pre-compiled

how do I make makefile to compile sub-directory source code to library in dpdk format makefile

my original makefile without dpdk_foo.c is 

CC	= gcc -g
INCLUDE = -I. -I./com_util
CFLAGS = $(INCLUDE) -Wall -fPIC -g -std=c99 -D_XOPEN_SOURCE=700 -D_BSD_SOURCE
CFLAGS += -O3 $(shell pkg-config --cflags libdpdk)

TARGET = pppoeclient
SRC = pppd.c sock.c fsm.c codec.c

OBJ = $(SRC:.c=.o) 

SUBDIRS := com_util

######################################
# Compile & Link
# 	Must use \tab key after new line
######################################
$(TARGET): $(OBJ) *.h
	for dir in $(SUBDIRS); \
	do make -C $$dir all || exit 1; \
	done
	$(CC) $(OBJ) $(CFLAGS) -L./com_util -o $(TARGET) \
	-static -lcom_util
######################################
# Clean 
######################################
clean:
	@for dir in $(SUBDIRS); do make -C $$dir clean|| exit 1; done
	rm -f *.o $(TARGET)

I have tried to just add rte_ library I need and --whole-archive tag to my original makefile

It can be compiled successfully but fail in execution time when call rte_pktmbuf_pool_create(); function (return “error setting mempool handler")

could anyone solve my questions please?

many thanks,

best regards,