linux so

1、动态库的编译

testa.c

#include <stdio.h>#include "test.h"void TestA(){    printf("TestA func\n");}

testb.c

#include <stdio.h>#include "test.h"void TestB(){    printf("TestB func\n");}

gcc testa.c testb.c -fPIC -shared  -o libtest.so

2、动态库的链接，生成执行文件

main.c

#include "test.h"int main(int argc, char *argv[]){        TestA();        TestB();        return 0;}

gcc main.o -L. -ltest -o $@

.PHONY:all cleanCC=gccCFLAGS=-Wall -gSO=libtest.soBIN=mainall:$(SO) $(BIN)%.o:%.c        $(CC) $(CFLAGS) -c $< -o  $@$(SO):testa.c testb.c        $(CC) $^ -fPIC -shared  -o $@$(BIN):main.o        $(CC) $< -L. -ltest -o $@clean:        rm -rf *.o *.so