implicit declaration of function ‘send_sig_info‘ [-Werror,-Wimplicit-function-declaration]

error: implicit declaration of function ‘send_sig_info‘ [-Werror,-Wimplicit-function-declaration]

编译遇到这个报错，全网没找到答案，最终自己摸索出来了，希望对你有帮助。

解决方法：
添加#include<linux/sched/signal.h>头文件