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I have read this discussion which discuss about how to check the signal actions of each process: How can I check what signals a process is listening to?

However, I want to use C/C++, Python or other ways to get the userspace of the signal handler name of each process. Just like the psig in Solaris: What is the meaning of every column when executing psig command?

Would it be possible to do that in Linux?

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The signal function returns a pointer to the existing handler, if any. You can set a signal to a known value, get the existing handler's address and restore it.

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