写一个可执行文件依赖.so的测试用例

export PATH="/home/he/edge/prebuilts/gcc/linux-x86/aarch64/gcc-arm-10.3-2021.07-x86_64-aarch64-none-linux-gnu/bin:$PATH"

如果makefile编译报错，那就是每个命令前应该是tab一下而不是空格。
1、printlib文件夹下三个文件
Makefile:

CROSS_COMPILE = aarch64-none-linux-gnu-
AS      = $(CROSS_COMPILE)as
LD      = $(CROSS_COMPILE)ld
CC      = $(CROSS_COMPILE)gcc
CPP     = $(CC) -E
AR      = $(CROSS_COMPILE)ar
NM      = $(CROSS_COMPILE)nm

SOURCE_ROOT = $(shell pwd)

CFLAGS          := -Wall -O2 -fno-builtin
CPPFLAGS        := -lm

INCLUDE_DIR := -I $(SOURCE_ROOT)/ \
        -I$(SOURCE_ROOT)/include

APP_NAME=libprinttest.so

all: $(APP_NAME)
APP_OBJECTC += printlib.c

STATIC_OBJ_O  = $(patsubst %.c, %.o, $(APP_OBJECTC))
STATIC_OBJ_C  = $(foreach file, $(STATIC_OBJ_O), $(file) )

$(STATIC_OBJ_C) : %.o:%.c
	$(CC)  $(INCLUDE_DIR) $(CPPFLAGS) -c  -fPIC $(APP_OBJECTC)

$(APP_NAME): $(STATIC_OBJ_C)
	$(CC) -shared $(CPPFLAGS) -o $(APP_NAME) ./*.o

clean:
	@rm -f *.o *.so
.PHONY: clean

printlib.c:

#include <string.h>
#include <stdio.h>
#include <stdlib.h>

void myPrint()
{
    
        printf("world\n");
}

printlib.h:

#ifndef jasonPrint__h
#define jasonPrint__h

void myPrint();

#endif

在printtest文件夹下
Makefile:

VERSION                 :=$(shell date +1.%y.%m.%d)
CROSS_COMPILE           ?= aarch64-none-linux-gnu-
DEBUG                   ?= -s
APATH                   := $(shell pwd)
C_SRCS                  := $(wildcard *.c)
C_OBJS                  := $(patsubst %.c,%.o,$(C_SRCS))
TAGS                    := printtest
CC                      := $(CROSS_COMPILE)gcc
STRIP                   := strip
CFLAGS                  := -O2 -Wall -I.  -I../printlib
LFLAGS                  := -L. -L../printlib
LIBS                    := -lpthread -lprinttest
MKFLAGS                 := --no-print-directory


.PHONY: all clean app


all: app

app: $(C_OBJS)
	$(CC) $(CFLAGS) $(LFLAGS) -o $(TAGS) $^ $(LIBS)

%.o:%.c
	$(CC) $(CFLAGS) $(LFLAGS) -c $< -o [email protected]

clean:
	rm -rf *.o  *.*~ $(TAGS)

printlib.h:

#ifndef jasonPrint__h
#define jasonPrint__h

void myPrint();

#endif

main.c:

/* * main.c * * Created on: Mar 9, 2017 * Author: root */

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <stdarg.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <getopt.h>
#include <pthread.h>
#include <ctype.h>
#include <stdint.h>
#include <signal.h>
#include <time.h>
#include <unistd.h>
#include "printlib.h"

void printtest(void)
{
    
        while (1) {
    
                sleep(5);
                printf("hello ");
                myPrint();
        }
}

int main(int argc, char **argv)
{
    
        int ret = 0;

        printtest();

        return ret;
}

直接编译就行。

打包镜像：
Dockerfile:

FROM ubuntu
ADD libprinttest.so /usr/lib
ADD printtest /
CMD ["/printtest"]

docker buildx build --platform linux/arm64 -t printtest:v1.0 .
docker save 8a350c65e6e2 -o my_img.tar