undefined reference to `pthread_join'解决办法

来源:互联网 发布:手机视频直播软件 编辑:程序博客网 时间:2024/05/24 01:50


root@wl-Lenovo-B590:/myworkspace/anvancdedprogramminginunix/mysourcecode/chapter11# gcc pthread_join.c -o pthread_join/tmp/ccWSGngH.o: In function `main':pthread_join.c:(.text+0x67): undefined reference to `pthread_create'pthread_join.c:(.text+0x8b): undefined reference to `pthread_create'pthread_join.c:(.text+0x9f): undefined reference to `pthread_join'pthread_join.c:(.text+0xb3): undefined reference to `pthread_join'collect2: ld 返回 1



问题原因:
    pthread 库不是 Linux 系统默认的库,连接时需要使用静态库 libpthread.a,所以在使用pthread_create()创建线程,以及调用 pthread_atfork()函数建立fork处理程序时,需要链接该库。

问题解决:
    在编译中要加 -lpthread参数
    gcc thread.c -o thread -lpthread


root@wl-Lenovo-B590:/myworkspace/anvancdedprogramminginunix/mysourcecode/chapter11# gcc pthread_join.c -o pthread_join -lpthreadroot@wl-Lenovo-B590:/myworkspace/anvancdedprogramminginunix/mysourcecode/chapter11# ./pthread_join thread2 return with 2thread1 return with 1thread1 exit with1thread2 exit with2root@wl-Lenovo-B590:/myworkspace/anvancdedprogramminginunix/mysourcecode/chapter11# 
ok了~~

0 0
原创粉丝点击