在Linux中更改进程名称而不更改argv [0] [英] Change process name without changing argv[0] in Linux

问题描述

我需要用C语言修改程序的进程名称.
我精确地说，这不是我要更改的线程的名称.
我想更改程序的名称，但是找到的唯一解决方案是修改argv[0]的值.
我还找到了prctl(PR_SET_NAME, "newname")的另一种解决方案，但是该解决方案不起作用.

I need to modify the process name of my program in C language.
I precise, this is not the name of a thread that I want to change.
I want to change the name of my program, but the only solution I found, is to modify the value of argv[0].
I also found another solution with prctl(PR_SET_NAME, "newname"), but this solution doesn't work.

推荐答案

调用prctl和修改argv[0]之间的区别是:

The differences between invoking prctl and modify argv[0] are:

• 修改argv[0]更改/proc/$pid/cmdline
中的信息
• 调用prctl(PR_SET_NAME)会更改/proc/$pid/status
中的信息

• modify argv[0] changes information in /proc/$pid/cmdline
• invoking prctl(PR_SET_NAME) changes information in /proc/$pid/status

这意味着您将获得发布ps -a和ps -ax的进程的名称.

That means you will get difference name of your process issuing ps -a and ps -ax.

如果在执行ps时期望不同的参数具有相同的进程名称，则可以同时使用它们(即，更改argv[0]并调用prctl).

If you expects same process name for different arguments while executing ps, you can do them both (i.e., change argv[0] and invoke prctl).

希望答案会有所帮助.

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