Re: Determining address which caused SEGV

[Jeff Dike]

> I am trying to write a signal handler for SEGV that can figure out
> what address was being accessed to cause the fault.  Yes, I have a
> good reason for wanting this.

This is how I handle it.  It requires no setup at handler registration time 
(not that I did on purpose, anyway).

void user_segv_handler(int sig)
{
  struct sigcontext_struct *sc;

  sc = (struct sigcontext_struct *) (&sig + 1);
  ...
} 

> Yes, I have a good reason for wanting this.

A bunch of people do.  The above is taken from my user-mode port of the kernel.

				Jeff