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DPDK-20.11.3版本使用meson和ninja进行编译安装，过程可参考之前的一篇DPDK-20.11.3在CentOS8.4上编译运行文章，按照这个步骤，编译安装完成之后，可以发现build/app和build/example目录下已经生成了测试用例可执行程序。
这时就可以根据各个用例启动命令去进行启动执行了。
但是，如果想要在测试用例中加些打印信息该怎么办呢？下面就简单介绍一下，如何对dpdk测试用例进行单独编译。
提前说明：
1、DPDK版本号为20.11.3，操作系统为CentOS 8.4；
2、由于meson和ninja工具不熟悉，因此测试用例还是通过Makefile进行编译；
3、DPDK的测试用例有很多，不能一一列举，因此使用l3fwd用例进行说明；
4、测试用例下已经存在可以直接编译的Makefile文件，但是编译依赖DPDK的安装环境，而下面需要做到的就是不依赖DPDK安装环境，也能进行编译。（即将编译所需静态库、动态库、头文件、*.c文件放入到一个文件下，这样即使将改文件移动到其它未安装过DPDK的操作系统中也可以编译执行，实际应用过程中也正是这样，即只是将项目工程中依赖的静态库和头文件放到指定路径下，既可以调用相关API使用）。
简要步骤：
1、创建工程目录dpdk-l3fwd，将所需静态库、动态库、头文件、*.c文件复制到该文件；
2、修改Makefile文件，主要设置编译所需环境变量和链接库路径；
3、编译(静态编译和动态编译)；
4、总结。
1、创建工程
1.1、创建dpdk-l3fwd目录
如下创建dpdk-l3fw工程目录及子目录和相关文件。
[root@LFTF dpdk-l3fwd]
total 36
drwxr-xr-x. 2 root root 128 Dec 29 13:15 app
drwxr-xr-x. 2 root root 6 Dec 29 10:39 include
drwxr-xr-x. 2 root root 6 Dec 29 10:39 lib
-rw-r--r--. 1 root root 0 Dec 29 13:23 Makefile
drwxr-xr-x. 2 root root 6 Dec 29 13:23 pkgconfig
其中
app为代码子目录，用来存放除了main.c其他.c文件；
include为头文件目录，用来存放dpdk相关头文件和app目录下.c依赖的头文件；
lib为库文件目录，用来存放dpdk源代买编译出的静态库文件；
Makefile，example例子中自带的Makefile文件，但需要修改一点内容；
pkgconfig文件里有两个.pc文件，用来维护链接dpdk静态库和动态库的路径；（后面详细说明）；
1.2、源文件和库文件
1.2.1、复制静态/动态库和相关头文件
DPDK-20.11.3在编译安装完成后，会生成相关静态库、动态库文件到Linux系统目录/usr/local/lib64/下，可以使用以下ll命令查看，其中dpdk相关头文件在usr/local/include路径下：
查看静态库文件
[root@LFTF ~]
-rw-r--r--. 1 root root 170924 Dec 25 11:53 /usr/local/lib64/librte_acl.a
-rw-r--r--. 1 root root 76982 Dec 25 11:55 /usr/local/lib64/librte_baseband_acc100.a
...
查看动态库文件
[root@localhost ~]
lrwxrwxrwx. 1 root root 16 Dec 25 11:57 /usr/local/lib64/librte_acl.so -> librte_acl.so.21
lrwxrwxrwx. 1 root root 40 Dec 25 11:57 /usr/local/lib64/librte_baseband_acc100.so -> dpdk/pmds-21.0/librte_baseband_acc100.so
lrwxrwxrwx. 1 root root 47 Dec 25 11:57 /usr/local/lib64/librte_baseband_fpga_5gnr_fec.so -> dpdk/pmds-21.0/librte_baseband_fpga_5gnr_fec.so
lrwxrwxrwx. 1 root root 46 Dec 25 11:57 /usr/local/lib64/librte_baseband_fpga_lte_fec.so -> dpdk/pmds-21.0/librte_baseband_fpga_lte_fec.so
...
查看DPDK相关头文件
[root@localhost ~]
-rw-r--r--. 1 root root 3350 Sep 6 18:28 /usr/local/include/rte_acc100_cfg.h
-rw-r--r--. 1 root root 11081 Sep 6 18:28 /usr/local/include/rte_acl.h
-rw-r--r--. 1 root root 883 Sep 6 18:28 /usr/local/include/rte_acl_osdep.h
-rw-r--r--. 1 root root 2305 Sep 6 18:28 /usr/local/include/rte_alarm.h
-rw-r--r--. 1 root root 1684 Sep 6 18:28 /usr/local/include/rte_approx.h
-rw-r--r--. 1 root root 1914 Sep 6 18:28 /usr/local/include/rte_arp.h
-rw-r--r--. 1 root root 4454 Sep 6 18:28 /usr/local/include/rte_atomic_32.h
-rw-r--r--. 1 root root 4186 Sep 6 18:28 /usr/local/include/rte_atomic_64.h
-rw-r--r--. 1 root root 6598 Sep 6 18:28 /usr/local/include/rte_atomic.h
...
在dpdk-l3fwd/lib目录下创建一个dpdk文件，将/usr/local/lib64/路径下关于dpdk的静态库和动态库复制过去
[root@LFTF lib]
[root@LFTF lib]
[root@LFTF lib]
total 0
drwxr-xr-x. 2 root root 6 Dec 29 13:47 dpdk
复制静态库
[root@LFTF lib]# cp /usr/local/lib64/*rte*.a /home/dpdk-l3fwd/lib/dpdk/
[root@LFTF lib]#
复制动态库
[root@localhost ~]# cp /mnt/hgfs/code/dpdk/dpdk-l3fwd/lib/dpdk/*.so* /home/dpdk-l3fwd/lib/dpdk
[root@localhost ~]#
如果只需要静态库或者需要动态库，按需操作。
在dpdk-l3fwd/include目录下创建一个dpdk文件，将/usr/local/include/路径下关于dpdk的头文件复制过去
[root@LFTF include]
/home/dpdk-l3fwd/include
[root@LFTF include]
[root@LFTF include]
[root@LFTF include]
total 0
drwxr-xr-x. 2 root root 6 Dec 29 17:24 dpdk
复制头文件
[root@localhost ~]# cp /usr/local/include/rte*.h /home/dpdk-l3fwd/include/dpdk/
[root@localhost ~]# cp -rf /usr/local/include/generic/ /home/dpdk-l3fwd/include/dpdk/
[root@localhost ~]#
1.2.2、复制pkgconfig文件
pkg-config原理和用法可自行搜索，也可参考pkg-config原理及用法；
这里只说明dpdk相关的.pc文件存放路径为/usr/local/lib64/pkgconfi
[root@localhost ~]
total 8
-rw-r--r--. 1 root root 1055 Dec 25 11:52 libdpdk-libs.pc
-rw-r--r--. 1 root root 4082 Dec 25 11:52 libdpdk.pc
将该目录下的两个文件复制到dpdk-l3fwd/pkgconfig下
[root@localhost ~]
[root@localhost ~]
后面执行Makefile的时候就依赖这个路径下的.pc内容，所以需要更改.pc路径
libdpdk.pc更改前：
prefix=/usr/local
libdir=${prefix}/lib64
includedir=${prefix}/include
Name: DPDK
Description: The Data Plane Development Kit (DPDK).
Note that CFLAGS might contain an -march flag higher than typical baseline.
This is required for a number of static inline functions in the public headers.
Version: 20.11.3
Requires: libdpdk-libs
...
libdpdk.pc更改后：
prefix=/home/dpdk-l3fwd/pkgconfig
libdir=${prefix}/lib
includedir=${prefix}/include
Name: DPDK
Description: The Data Plane Development Kit (DPDK).
Note that CFLAGS might contain an -march flag higher than typical baseline.
This is required for a number of static inline functions in the public headers.
Version: 20.11.3
Requires: libdpdk-libs
...
libdpdk-libs.pc更改前：
prefix=/usr/local
libdir=${prefix}/lib64
includedir=${prefix}/include
Name: dpdk-libs
Description: Internal-only DPDK pkgconfig file. Not for direct use.
Use libdpdk.pc instead of this file to query DPDK compile/link arguments
Version: 20.11.3
Libs: -Wl,--as-needed -L${libdir} -lrte_node -lrte_graph -lrte_bpf -lrte_flow_classify -lrte_pipeline -lrte_table -lrte_port -lrte_fib -lrte_ipsec -lrte_vhost -lrte_stack -lrte_security -lrte_sched -lrte_reorder -lrte_rib -lrte_regexdev -lrte_rawdev -lrte_pdump -lrte_power -lrte_member -lrte_lpm -lrte_latencystats -lrte_kni -lrte_jobstats -lrte_ip_frag -lrte_gso -lrte_gro -lrte_eventdev -lrte_efd
...
libdpdk-libs.pc更改后：
prefix=/home/dpdk-l3fwd/pkgconfig
libdir=${prefix}/lib
includedir=${prefix}/include
Name: dpdk-libs
Description: Internal-only DPDK pkgconfig file. Not for direct use.
Use libdpdk.pc instead of this file to query DPDK compile/link arguments
Version: 20.11.3
Libs: -Wl,--as-needed -L${libdir} -lrte_node -lrte_graph -lrte_bpf -lrte_flow_classify -lrte_pipeline -lrte_table -lrte_port -lrte_fib -lrte_ipsec -lrte_vhost -lrte_stack -lrte_security -lrte_sched -lrte_reorder -lrte_rib -lrte_regexdev -lrte_rawdev -lrte_pdump -lrte_power -lrte_member -lrte_lpm -lrte_latencystats -lrte_kni -lrte_jobstats -lrte_ip_frag -lrte_gso -lrte_gro -lrte_eventdev -lrte_efd
...
简言之之前依赖dpdk安装到系统目录下的动态库和静态库路径，现在要依赖当前工程下的静态库和动态库路径。
1.2.3、复制l3fwd源代码
将dpdk-20.11.3源代码example/l3fwd路径下的源码复制到指定路径下。
[root@localhost l3fwd]
/home/dpdk-stable-20.11.3/examples/l3fwd
[root@localhost l3fwd]
total 220
-rw-rw-r--. 1 root root 6601 Sep 6 18:28 l3fwd_altivec.h
-rw-rw-r--. 1 root root 6129 Sep 6 18:28 l3fwd_common.h
-rw-rw-r--. 1 root root 24787 Sep 6 18:28 l3fwd_em.c
-rw-rw-r--. 1 root root 4830 Sep 6 18:28 l3fwd_em.h
-rw-rw-r--. 1 root root 8524 Sep 6 18:28 l3fwd_em_hlm.h
-rw-rw-r--. 1 root root 1275 Sep 6 18:28 l3fwd_em_hlm_neon.h
-rw-rw-r--. 1 root root 1336 Sep 6 18:28 l3fwd_em_hlm_sse.h
-rw-rw-r--. 1 root root 3077 Sep 6 18:28 l3fwd_em_sequential.h
-rw-rw-r--. 1 root root 7305 Sep 6 18:28 l3fwd_event.c
-rw-rw-r--. 1 root root 9983 Sep 6 18:28 l3fwd_event_generic.c
-rw-rw-r--. 1 root root 2246 Sep 6 18:28 l3fwd_event.h
-rw-rw-r--. 1 root root 8851 Sep 6 18:28 l3fwd_event_internal_port.c
-rw-rw-r--. 1 root root 5798 Sep 6 18:28 l3fwd.h
-rw-rw-r--. 1 root root 3823 Sep 6 18:28 l3fwd_lpm_altivec.h
-rw-rw-r--. 1 root root 16472 Sep 6 18:28 l3fwd_lpm.c
-rw-rw-r--. 1 root root 2718 Sep 6 18:28 l3fwd_lpm.h
-rw-rw-r--. 1 root root 4226 Sep 6 18:28 l3fwd_lpm_neon.h
-rw-rw-r--. 1 root root 3410 Sep 6 18:28 l3fwd_lpm_sse.h
-rw-rw-r--. 1 root root 5886 Sep 6 18:28 l3fwd_neon.h
-rw-rw-r--. 1 root root 5726 Sep 6 18:28 l3fwd_sse.h
-rw-rw-r--. 1 root root 34192 Sep 6 18:28 main.c
-rw-rw-r--. 1 root root 1278 Dec 29 10:07 Makefile
-rw-rw-r--. 1 root root 457 Sep 6 18:28 meson.build
其中
l3fw**.c文件复制到app目录下；
main.c文件复制到dpdk-l3fwd目录下；
l3fwd**.h文件复制到include目录下；
Makefile文件复制到dpdk-l3fwd目录下；
如下所示：
[root@LFTF dpdk-l3fwd]
app include lib main.c Makefile pkgconfig
[root@LFTF dpdk-l3fwd]
-rw-r--r--. 1 root root 34192 Dec 29 13:16 main.c
-rw-r--r--. 1 root root 0 Dec 29 13:23 Makefile
app:
total 80
-rw-r--r--. 1 root root 24787 Dec 29 13:15 l3fwd_em.c
-rw-r--r--. 1 root root 7305 Dec 29 13:15 l3fwd_event.c
-rw-r--r--. 1 root root 9983 Dec 29 13:15 l3fwd_event_generic.c
-rw-r--r--. 1 root root 8851 Dec 29 13:15 l3fwd_event_internal_port.c
-rw-r--r--. 1 root root 16472 Dec 29 13:15 l3fwd_lpm.c
include:
total 112
drwxr-xr-x. 3 root root 12288 Dec 29 17:27 dpdk
-rw-r--r--. 1 root root 6601 Dec 29 17:31 l3fwd_altivec.h
-rw-r--r--. 1 root root 6129 Dec 29 17:31 l3fwd_common.h
-rw-r--r--. 1 root root 4830 Dec 29 17:31 l3fwd_em.h
-rw-r--r--. 1 root root 8524 Dec 29 17:31 l3fwd_em_hlm.h
-rw-r--r--. 1 root root 1275 Dec 29 17:31 l3fwd_em_hlm_neon.h
-rw-r--r--. 1 root root 1336 Dec 29 17:31 l3fwd_em_hlm_sse.h
-rw-r--r--. 1 root root 3077 Dec 29 17:31 l3fwd_em_sequential.h
-rw-r--r--. 1 root root 2246 Dec 29 17:31 l3fwd_event.h
-rw-r--r--. 1 root root 5798 Dec 29 17:31 l3fwd.h
-rw-r--r--. 1 root root 3823 Dec 29 17:31 l3fwd_lpm_altivec.h
-rw-r--r--. 1 root root 2718 Dec 29 17:31 l3fwd_lpm.h
-rw-r--r--. 1 root root 4226 Dec 29 17:31 l3fwd_lpm_neon.h
-rw-r--r--. 1 root root 3410 Dec 29 17:31 l3fwd_lpm_sse.h
-rw-r--r--. 1 root root 5886 Dec 29 17:31 l3fwd_neon.h
-rw-r--r--. 1 root root 5726 Dec 29 17:31 l3fwd_sse.h
lib:
total 16
drwxr-xr-x. 2 root root 12288 Dec 29 13:48 dpdk
pkgconfig:
total 0
[root@LFTF dpdk-l3fwd]
2、Makefile
2.1、Makefile更改前注释说明
[root@LFTF dpdk-l3fwd]
APP = l3fwd
SRCS-y := main.c l3fwd_lpm.c l3fwd_em.c l3fwd_event.c
SRCS-y += l3fwd_event_generic.c l3fwd_event_internal_port.c
PKGCONF ?= pkg-config
ifneq ($(shell $(PKGCONF) --exists libdpdk && echo 0),0)
$(error "no installation of DPDK found")
endif
all: static
.PHONY: shared static
shared: build/$(APP)-shared
ln -sf $(APP)-shared build/$(APP)
static: build/$(APP)-static
ln -sf $(APP)-static build/$(APP)
PC_FILE := $(shell $(PKGCONF) --path libdpdk 2>/dev/null)
CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
CFLAGS += -DALLOW_EXPERIMENTAL_API
LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
LDFLAGS_STATIC = $(shell $(PKGCONF) --static --libs libdpdk)
build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
build/$(APP)-static: $(SRCS-y) Makefile $(PC_FILE) | build
$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_STATIC)
build:
@mkdir -p $@
.PHONY: clean
clean:
rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
test -d build && rmdir -p build || true
2.2、Makefile更改后注释说明
PKG_DIR = pkgconfig
PKG_ENV = PKG_CONFIG_PATH=$(ROOT_DIR)/$(PKG_DIR)
PS = c
APP = l3fwd
SRCS-y := $(wildcard $(ROOT_DIR)/*.$(PS) $(addsuffix /*.$(PS), $(ROOT_DIR)/$(SUB_DIR)))
OBJS-y = $(foreach x,.c,$(patsubst %$(x),%.o,$(filter %$(x),$(SRCS-y))))
$(info OBJS1:${OBJS-y})
$(info PKG:$(PKG_ENV))
PKGCONF ?= pkg-config
ifneq ($(shell $(PKG_ENV) $(PKGCONF) --exists libdpdk && echo 0),0)
$(error "no installation of DPDK found")
endif
all: static
.PHONY: shared static
shared: build/$(APP)-shared
ln -sf $(APP)-shared build/$(APP)
static: build/$(APP)-static
ln -sf $(APP)-static build/$(APP)
PC_FILE := $(shell $(PKG_ENV) $(PKGCONF) --path libdpdk 2>/dev/null)
CFLAGS+=-W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wno-unused-function -Wno-implicit-fallthrough
CFLAGS += -O3 $(shell $(PKG_ENV) $(PKGCONF) --cflags libdpdk) -I${ROOT_DIR}/include -I${ROOT_DIR}/include/dpdk -I${ROOT_DIR}/app -std=gnu99 -fPIC -DPIC -DUSE_DPDK
LDFLAGS_SHARED = $(shell $(PKG_ENV) $(PKGCONF) --libs libdpdk) -lssl -lcrypto -lz -ldl -lpthread -lrt -lstdc++ -lnuma -lm -lpcap
LDFLAGS_STATIC = $(shell $(PKG_ENV) $(PKGCONF) --static --libs libdpdk) -lssl -lcrypto -lz -ldl -lpthread -lrt -lstdc++ -lnuma -lm -lpcap
CFLAGS += -DALLOW_EXPERIMENTAL_API
%.o: %.c
$(CC) -c $(CFLAGS) -o $@ $<
build/$(APP)-shared: $(OBJS-y) Makefile $(PC_FILE) | build
$(CC) $(CFLAGS) $(OBJS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
build/$(APP)-static: $(OBJS-y) Makefile $(PC_FILE) | build
$(CC) $(CFLAGS) $(OBJS-y) -o $@ $(LDFLAGS) $(LDFLAGS_STATIC)
build:
@mkdir -p $@
.PHONY: clean
clean:
rm -f $(OBJS-y)
rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
test -d build && rmdir -p build || true
2.3、前后对比
修改的地方有3点：
1、需要编译的.c文件有工程路径和通配符来获取，更加灵活方便；
2、pkg-config执行时的环境变量为当前工程所在路径，这样链接静态库和动态库的时候依赖当前工程下的pkgconfig下的.pc文件；
3、之前的Makefile未生成.o中间文件，也添加上去了。
3、编译
通过修改Makefile里的语句可以控制去链接静态库还是链接动态库
3.1、静态编译
all: static
.PHONY: shared static
shared: build/$(APP)-shared
ln -sf $(APP)-shared build/$(APP)
static: build/$(APP)-static
ln -sf $(APP)-static build/$(APP)
编译过程
[root@localhost dpdk-l3fwd]
OBJS1:/home/dpdk-l3fwd/main.o /home/dpdk-l3fwd/app/l3fwd_lpm.o /home/dpdk-l3fwd/app/l3fwd_em.o /home/dpdk-l3fwd/app/l3fwd_event_internal_port.o /home/dpdk-l3fwd/app/l3fwd_event.o /home/dpdk-l3fwd/app/l3fwd_event_generic.o
PKG:PKG_CONFIG_PATH=/home/dpdk-l3fwd/pkgconfig
cc -c -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wno-unused-function -Wno-implicit-fallthrough -O3 -I/home/dpdk-l3fwd/pkgconfig/include -include rte_config.h -march=native -I/usr/usr/include -I/home/dpdk-l3fwd/include -I/home/dpdk-l3fwd/include/dpdk -I/home/dpdk-l3fwd/app -std=gnu99 -fPIC -DPIC -DUSE_DPDK -DALLOW_EXPERIMENTAL_API -o /home/dpdk-l3fwd/main.o /home/dpdk-l3fwd/main.c
cc -c -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wno-unused-function -Wno-implicit-fallthrough -O3 -I/home/dpdk-l3fwd/pkgconfig/include -include rte_config.h -march=native -I/usr/usr/include -I/home/dpdk-l3fwd/include -I/home/dpdk-l3fwd/include/dpdk -I/home/dpdk-l3fwd/app -std=gnu99 -fPIC -DPIC -DUSE_DPDK -DALLOW_EXPERIMENTAL_API -o /home/dpdk-l3fwd/app/l3fwd_lpm.o /home/dpdk-l3fwd/app/l3fwd_lpm.c
cc -c -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wno-unused-function -Wno-implicit-fallthrough -O3 -I/home/dpdk-l3fwd/pkgconfig/include -include rte_config.h -march=native -I/usr/usr/include -I/home/dpdk-l3fwd/include -I/home/dpdk-l3fwd/include/dpdk -I/home/dpdk-l3fwd/app -std=gnu99 -fPIC -DPIC -DUSE_DPDK -DALLOW_EXPERIMENTAL_API -o /home/dpdk-l3fwd/app/l3fwd_em.o /home/dpdk-l3fwd/app/l3fwd_em.c
cc -c -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wno-unused-function -Wno-implicit-fallthrough -O3 -I/home/dpdk-l3fwd/pkgconfig/include -include rte_config.h -march=native -I/usr/usr/include -I/home/dpdk-l3fwd/include -I/home/dpdk-l3fwd/include/dpdk -I/home/dpdk-l3fwd/app -std=gnu99 -fPIC -DPIC -DUSE_DPDK -DALLOW_EXPERIMENTAL_API -o /home/dpdk-l3fwd/app/l3fwd_event_internal_port.o /home/dpdk-l3fwd/app/l3fwd_event_internal_port.c
cc -c -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wno-unused-function -Wno-implicit-fallthrough -O3 -I/home/dpdk-l3fwd/pkgconfig/include -include rte_config.h -march=native -I/usr/usr/include -I/home/dpdk-l3fwd/include -I/home/dpdk-l3fwd/include/dpdk -I/home/dpdk-l3fwd/app -std=gnu99 -fPIC -DPIC -DUSE_DPDK -DALLOW_EXPERIMENTAL_API -o /home/dpdk-l3fwd/app/l3fwd_event.o /home/dpdk-l3fwd/app/l3fwd_event.c
cc -c -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wno-unused-function -Wno-implicit-fallthrough -O3 -I/home/dpdk-l3fwd/pkgconfig/include -include rte_config.h -march=native -I/usr/usr/include -I/home/dpdk-l3fwd/include -I/home/dpdk-l3fwd/include/dpdk -I/home/dpdk-l3fwd/app -std=gnu99 -fPIC -DPIC -DUSE_DPDK -DALLOW_EXPERIMENTAL_API -o /home/dpdk-l3fwd/app/l3fwd_event_generic.o /home/dpdk-l3fwd/app/l3fwd_event_generic.c
cc -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wno-unused-function -Wno-implicit-fallthrough -O3 -I/home/dpdk-l3fwd/pkgconfig/include -include rte_config.h -march=native -I/usr/usr/include -I/home/dpdk-l3fwd/include -I/home/dpdk-l3fwd/include/dpdk -I/home/dpdk-l3fwd/app -std=gnu99 -fPIC -DPIC -DUSE_DPDK -DALLOW_EXPERIMENTAL_API /home/dpdk-l3fwd/main.o /home/dpdk-l3fwd/app/l3fwd_lpm.o /home/dpdk-l3fwd/app/l3fwd_em.o /home/dpdk-l3fwd/app/l3fwd_event_internal_port.o /home/dpdk-l3fwd/app/l3fwd_event.o /home/dpdk-l3fwd/app/l3fwd_event_generic.o -o build/l3fwd-static -Wl,--whole-archive -L/home/dpdk-l3fwd/pkgconfig/lib -l:librte_common_cpt.a -l:librte_common_dpaax.a -l:librte_common_iavf.a -l:librte_common_octeontx.a -l:librte_common_octeontx2.a -l:librte_common_sfc_efx.a -l:librte_bus_dpaa.a -l:librte_bus_fslmc.a -l:librte_bus_ifpga.a -l:librte_bus_pci.a -l:librte_bus_vdev.a -l:librte_bus_vmbus.a -l:librte_common_mlx5.a -l:librte_common_qat.a -l:librte_mempool_bucket.a -l:librte_mempool_dpaa.a -l:librte_mempool_dpaa2.a -l:librte_mempool_octeontx.a -l:librte_mempool_octeontx2.a -l:librte_mempool_ring.a -l:librte_mempool_stack.a -l:librte_net_af_packet.a -l:librte_net_ark.a -l:librte_net_atlantic.a -l:librte_net_avp.a -l:librte_net_axgbe.a -l:librte_net_bond.a -l:librte_net_bnx2x.a -l:librte_net_bnxt.a -l:librte_net_cxgbe.a -l:librte_net_dpaa.a -l:librte_net_dpaa2.a -l:librte_net_e1000.a -l:librte_net_ena.a -l:librte_net_enetc.a -l:librte_net_enic.a -l:librte_net_failsafe.a -l:librte_net_fm10k.a -l:librte_net_i40e.a -l:librte_net_hinic.a -l:librte_net_hns3.a -l:librte_net_iavf.a -l:librte_net_ice.a -l:librte_net_igc.a -l:librte_net_ixgbe.a -l:librte_net_kni.a -l:librte_net_liquidio.a -l:librte_net_memif.a -l:librte_net_mlx4.a -l:librte_net_mlx5.a -l:librte_net_netvsc.a -l:librte_net_nfp.a -l:librte_net_null.a -l:librte_net_octeontx.a -l:librte_net_octeontx2.a -l:librte_net_pcap.a -l:librte_net_pfe.a -l:librte_net_qede.a -l:librte_net_ring.a -l:librte_net_sfc.a -l:librte_net_softnic.a -l:librte_net_tap.a -l:librte_net_thunderx.a -l:librte_net_txgbe.a -l:librte_net_vdev_netvsc.a -l:librte_net_vhost.a -l:librte_net_virtio.a -l:librte_net_vmxnet3.a -l:librte_raw_dpaa2_cmdif.a -l:librte_raw_dpaa2_qdma.a -l:librte_raw_ioat.a -l:librte_raw_ntb.a -l:librte_raw_octeontx2_dma.a -l:librte_raw_octeontx2_ep.a -l:librte_raw_skeleton.a -l:librte_crypto_bcmfs.a -l:librte_crypto_caam_jr.a -l:librte_crypto_ccp.a -l:librte_crypto_dpaa_sec.a -l:librte_crypto_dpaa2_sec.a -l:librte_crypto_nitrox.a -l:librte_crypto_null.a -l:librte_crypto_octeontx.a -l:librte_crypto_octeontx2.a -l:librte_crypto_openssl.a -l:librte_crypto_scheduler.a -l:librte_crypto_virtio.a -l:librte_compress_octeontx.a -l:librte_compress_zlib.a -l:librte_regex_mlx5.a -l:librte_regex_octeontx2.a -l:librte_vdpa_ifc.a -l:librte_vdpa_mlx5.a -l:librte_event_dlb.a -l:librte_event_dlb2.a -l:librte_event_dpaa.a -l:librte_event_dpaa2.a -l:librte_event_octeontx2.a -l:librte_event_opdl.a -l:librte_event_skeleton.a -l:librte_event_sw.a -l:librte_event_dsw.a -l:librte_event_octeontx.a -l:librte_baseband_null.a -l:librte_baseband_turbo_sw.a -l:librte_baseband_fpga_lte_fec.a -l:librte_baseband_fpga_5gnr_fec.a -l:librte_baseband_acc100.a -l:librte_node.a -l:librte_graph.a -l:librte_bpf.a -l:librte_flow_classify.a -l:librte_pipeline.a -l:librte_table.a -l:librte_port.a -l:librte_fib.a -l:librte_ipsec.a -l:librte_vhost.a -l:librte_stack.a -l:librte_security.a -l:librte_sched.a -l:librte_reorder.a -l:librte_rib.a -l:librte_regexdev.a -l:librte_rawdev.a -l:librte_pdump.a -l:librte_power.a -l:librte_member.a -l:librte_lpm.a -l:librte_latencystats.a -l:librte_kni.a -l:librte_jobstats.a -l:librte_ip_frag.a -l:librte_gso.a -l:librte_gro.a -l:librte_eventdev.a -l:librte_efd.a -l:librte_distributor.a -l:librte_cryptodev.a -l:librte_compressdev.a -l:librte_cfgfile.a -l:librte_bitratestats.a -l:librte_bbdev.a -l:librte_acl.a -l:librte_timer.a -l:librte_hash.a -l:librte_metrics.a -l:librte_cmdline.a -l:librte_pci.a -l:librte_ethdev.a -l:librte_meter.a -l:librte_net.a -l:librte_mbuf.a -l:librte_mempool.a -l:librte_rcu.a -l:librte_ring.a -l:librte_eal.a -l:librte_telemetry.a -l:librte_kvargs.a -Wl,--no-whole-archive -Wl,--export-dynamic -lpcap -Wl,--as-needed -lrte_node -lrte_graph -lrte_bpf -lrte_flow_classify -lrte_pipeline -lrte_table -lrte_port -lrte_fib -lrte_ipsec -lrte_vhost -lrte_stack -lrte_security -lrte_sched -lrte_reorder -lrte_rib -lrte_regexdev -lrte_rawdev -lrte_pdump -lrte_power -lrte_member -lrte_lpm -lrte_latencystats -lrte_kni -lrte_jobstats -lrte_ip_frag -lrte_gso -lrte_gro -lrte_eventdev -lrte_efd -lrte_distributor -lrte_cryptodev -lrte_compressdev -lrte_cfgfile -lrte_bitratestats -lrte_bbdev -lrte_acl -lrte_timer -lrte_hash -lrte_metrics -lrte_cmdline -lrte_pci -lrte_ethdev -lrte_meter -lrte_net -lrte_mbuf -lrte_mempool -lrte_rcu -lrte_ring -lrte_eal -lrte_telemetry -lrte_kvargs -pthread -lm -ldl -lnuma -lpcap -L/usr/usr/lib64 -lmlx5 -lpthread -L/usr/usr/lib64 -lpthread -libverbs -lpthread -lcrypto -ldl -pthread -lz -lmlx4 -lpthread -L/usr/usr/lib64 -libverbs -lpthread -lelf -lz -lssl -lcrypto -lz -ldl -lpthread -lrt -lstdc++ -lnuma -lm -lpcap
ln -sf l3fwd-static build/l3fwd
[root@localhost dpdk-l3fwd]
查看可执行程序运行需要链接的动态库
[root@localhost dpdk-l3fwd]
linux-vdso.so.1 (0x00007ffe60ff5000)
libpcap.so.1 => /lib64/libpcap.so.1 (0x00007fd942a66000)
libm.so.6 => /lib64/libm.so.6 (0x00007fd9426e4000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007fd9424e0000)
libnuma.so.1 => /lib64/libnuma.so.1 (0x00007fd9422d4000)
libmlx5.so.1 => /lib64/libmlx5.so.1 (0x00007fd942081000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fd941e61000)
libibverbs.so.1 => /lib64/libibverbs.so.1 (0x00007fd941c41000)
libcrypto.so.1.1 => /lib64/libcrypto.so.1.1 (0x00007fd941758000)
libz.so.1 => /lib64/libz.so.1 (0x00007fd941541000)
libmlx4.so.1 => /lib64/libmlx4.so.1 (0x00007fd941334000)
libelf.so.1 => /lib64/libelf.so.1 (0x00007fd94111b000)
libc.so.6 => /lib64/libc.so.6 (0x00007fd940d56000)
/lib64/ld-linux-x86-64.so.2 (0x00007fd942cb1000)
libnl-route-3.so.200 => /lib64/libnl-route-3.so.200 (0x00007fd940ad0000)
libnl-3.so.200 => /lib64/libnl-3.so.200 (0x00007fd9408ad000)
[root@localhost dpdk-l3fwd]
可以看出链接的全是系统下的动态库，没有dpdk相关的。
静态编译出可执行程序大小19MB~
[root@localhost dpdk-l3fwd]
-rwxr-xr-x. 1 root root 19M Dec 30 10:19 build/l3fwd-static
3.2、动态编译
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)
编译过程
[root@localhost dpdk-l3fwd]
OBJS1:/home/dpdk-l3fwd/main.o /home/dpdk-l3fwd/app/l3fwd_lpm.o /home/dpdk-l3fwd/app/l3fwd_em.o /home/dpdk-l3fwd/app/l3fwd_event_internal_port.o /home/dpdk-l3fwd/app/l3fwd_event.o /home/dpdk-l3fwd/app/l3fwd_event_generic.o
PKG:PKG_CONFIG_PATH=/home/dpdk-l3fwd/pkgconfig
cc -c -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wno-unused-function -Wno-implicit-fallthrough -O3 -I/home/dpdk-l3fwd/pkgconfig/include -include rte_config.h -march=native -I/usr/usr/include -I/home/dpdk-l3fwd/include -I/home/dpdk-l3fwd/include/dpdk -I/home/dpdk-l3fwd/app -std=gnu99 -fPIC -DPIC -DUSE_DPDK -DALLOW_EXPERIMENTAL_API -o /home/dpdk-l3fwd/main.o /home/dpdk-l3fwd/main.c
cc -c -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wno-unused-function -Wno-implicit-fallthrough -O3 -I/home/dpdk-l3fwd/pkgconfig/include -include rte_config.h -march=native -I/usr/usr/include -I/home/dpdk-l3fwd/include -I/home/dpdk-l3fwd/include/dpdk -I/home/dpdk-l3fwd/app -std=gnu99 -fPIC -DPIC -DUSE_DPDK -DALLOW_EXPERIMENTAL_API -o /home/dpdk-l3fwd/app/l3fwd_lpm.o /home/dpdk-l3fwd/app/l3fwd_lpm.c
cc -c -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wno-unused-function -Wno-implicit-fallthrough -O3 -I/home/dpdk-l3fwd/pkgconfig/include -include rte_config.h -march=native -I/usr/usr/include -I/home/dpdk-l3fwd/include -I/home/dpdk-l3fwd/include/dpdk -I/home/dpdk-l3fwd/app -std=gnu99 -fPIC -DPIC -DUSE_DPDK -DALLOW_EXPERIMENTAL_API -o /home/dpdk-l3fwd/app/l3fwd_em.o /home/dpdk-l3fwd/app/l3fwd_em.c
cc -c -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wno-unused-function -Wno-implicit-fallthrough -O3 -I/home/dpdk-l3fwd/pkgconfig/include -include rte_config.h -march=native -I/usr/usr/include -I/home/dpdk-l3fwd/include -I/home/dpdk-l3fwd/include/dpdk -I/home/dpdk-l3fwd/app -std=gnu99 -fPIC -DPIC -DUSE_DPDK -DALLOW_EXPERIMENTAL_API -o /home/dpdk-l3fwd/app/l3fwd_event_internal_port.o /home/dpdk-l3fwd/app/l3fwd_event_internal_port.c
cc -c -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wno-unused-function -Wno-implicit-fallthrough -O3 -I/home/dpdk-l3fwd/pkgconfig/include -include rte_config.h -march=native -I/usr/usr/include -I/home/dpdk-l3fwd/include -I/home/dpdk-l3fwd/include/dpdk -I/home/dpdk-l3fwd/app -std=gnu99 -fPIC -DPIC -DUSE_DPDK -DALLOW_EXPERIMENTAL_API -o /home/dpdk-l3fwd/app/l3fwd_event.o /home/dpdk-l3fwd/app/l3fwd_event.c
cc -c -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wno-unused-function -Wno-implicit-fallthrough -O3 -I/home/dpdk-l3fwd/pkgconfig/include -include rte_config.h -march=native -I/usr/usr/include -I/home/dpdk-l3fwd/include -I/home/dpdk-l3fwd/include/dpdk -I/home/dpdk-l3fwd/app -std=gnu99 -fPIC -DPIC -DUSE_DPDK -DALLOW_EXPERIMENTAL_API -o /home/dpdk-l3fwd/app/l3fwd_event_generic.o /home/dpdk-l3fwd/app/l3fwd_event_generic.c
cc -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wno-unused-function -Wno-implicit-fallthrough -O3 -I/home/dpdk-l3fwd/pkgconfig/include -include rte_config.h -march=native -I/usr/usr/include -I/home/dpdk-l3fwd/include -I/home/dpdk-l3fwd/include/dpdk -I/home/dpdk-l3fwd/app -std=gnu99 -fPIC -DPIC -DUSE_DPDK -DALLOW_EXPERIMENTAL_API /home/dpdk-l3fwd/main.o /home/dpdk-l3fwd/app/l3fwd_lpm.o /home/dpdk-l3fwd/app/l3fwd_em.o /home/dpdk-l3fwd/app/l3fwd_event_internal_port.o /home/dpdk-l3fwd/app/l3fwd_event.o /home/dpdk-l3fwd/app/l3fwd_event_generic.o -o build/l3fwd-shared -Wl,--as-needed -L/home/dpdk-l3fwd/pkgconfig/lib -lrte_node -lrte_graph -lrte_bpf -lrte_flow_classify -lrte_pipeline -lrte_table -lrte_port -lrte_fib -lrte_ipsec -lrte_vhost -lrte_stack -lrte_security -lrte_sched -lrte_reorder -lrte_rib -lrte_regexdev -lrte_rawdev -lrte_pdump -lrte_power -lrte_member -lrte_lpm -lrte_latencystats -lrte_kni -lrte_jobstats -lrte_ip_frag -lrte_gso -lrte_gro -lrte_eventdev -lrte_efd -lrte_distributor -lrte_cryptodev -lrte_compressdev -lrte_cfgfile -lrte_bitratestats -lrte_bbdev -lrte_acl -lrte_timer -lrte_hash -lrte_metrics -lrte_cmdline -lrte_pci -lrte_ethdev -lrte_meter -lrte_net -lrte_mbuf -lrte_mempool -lrte_rcu -lrte_ring -lrte_eal -lrte_telemetry -lrte_kvargs -lssl -lcrypto -lz -ldl -lpthread -lrt -lstdc++ -lnuma -lm -lpcap
ln -sf l3fwd-shared build/l3fwd
[root@localhost dpdk-l3fwd]
查看可执行程序运行需要链接的动态库
[root@localhost dpdk-l3fwd]
[root@localhost dpdk-l3fwd]
linux-vdso.so.1 (0x00007ffc19355000)
librte_lpm.so.21 => /lib64/librte_lpm.so.21 (0x00007f3654d7a000)
librte_eventdev.so.21 => /lib64/librte_eventdev.so.21 (0x00007f3654b4f000)
librte_hash.so.21 => /lib64/librte_hash.so.21 (0x00007f365493d000)
librte_cmdline.so.21 => /lib64/librte_cmdline.so.21 (0x00007f3654733000)
librte_ethdev.so.21 => /lib64/librte_ethdev.so.21 (0x00007f3654487000)
librte_net.so.21 => /lib64/librte_net.so.21 (0x00007f365427f000)
librte_mbuf.so.21 => /lib64/librte_mbuf.so.21 (0x00007f365406d000)
librte_mempool.so.21 => /lib64/librte_mempool.so.21 (0x00007f3653e63000)
librte_eal.so.21 => /lib64/librte_eal.so.21 (0x00007f3653b73000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f3653953000)
libc.so.6 => /lib64/libc.so.6 (0x00007f365358e000)
/lib64/ld-linux-x86-64.so.2 (0x00007f3654f81000)
libm.so.6 => /lib64/libm.so.6 (0x00007f365320c000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007f3653008000)
libnuma.so.1 => /lib64/libnuma.so.1 (0x00007f3652dfc000)
librte_kvargs.so.21 => /lib64/librte_kvargs.so.21 (0x00007f3652bf9000)
librte_telemetry.so.21 => /lib64/librte_telemetry.so.21 (0x00007f36529f0000)
librte_ring.so.21 => /lib64/librte_ring.so.21 (0x00007f36527ec000)
librte_rcu.so.21 => /lib64/librte_rcu.so.21 (0x00007f36525e7000)
librte_meter.so.21 => /lib64/librte_meter.so.21 (0x00007f36523e4000)
librte_timer.so.21 => /lib64/librte_timer.so.21 (0x00007f36521e0000)
librte_cryptodev.so.21 => /lib64/librte_cryptodev.so.21 (0x00007f3651fcf000)
可以看出依赖了dpdk相关的动态库。
动态编译出可执行程序大小仅有102KB
[root@localhost dpdk-l3fwd]
-rwxr-xr-x. 1 root root 102K Dec 30 10:15 build/l3fwd-shared
4、总结
其中静态编译和动态编译的区别可自行搜索查看~
dpdk-l3fwd可单独编译源码已经压缩上传，如果需要可下载使用dpdk-l3fwd
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