难道左撇子的信号有一个独立的堆栈？ [英] Do signal handers have a separate stack?

问题描述

做信号处理程序有一个单独的协议栈，（如每个线程有独立的堆栈）？

Do signal handlers have a separate stack, (like each thread have separate stacks)?

这是在Linux中/ C上下文。

This is in Linux/C context.

推荐答案

在Linux手册页<一个href=\"http://kernel.org/doc/man-pages/online/pages/man7/signal.7.html\"><$c$c>signal(7):

From the Linux manual page signal(7):

By default, the signal handler is invoked on the normal process stack.
It is possible to arrange that the signal handler uses an alternate stack;
see sigaltstack(2) for a discussion of how to do this and when it might
be useful.

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