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Date: Tue, 30 Oct 2001 12:51:34 -0800 (PST)
Message-Id: <20011030.125134.93645850.davem@redhat.com>
To: csr21@cam.ac.uk
Cc: linux-kernel@vger.kernel.org
Subject: Re: SPARC and SA_SIGINFO signal handling
From: "David S. Miller" <davem@redhat.com>
In-Reply-To: <20011029190027.A21372@cam.ac.uk>
In-Reply-To: <20011029190027.A21372@cam.ac.uk>
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You're doing something really wrong, it works perfectly
fine here:

? cat test.c
#include <stdlib.h>
#include <sys/ucontext.h>
#include <signal.h>

void sigsegv_handler (int signo, siginfo_t *info, void *data) {
	if (info != 0)
		exit(1);
	exit(0);
}

int main () {
  int *foo;
  struct sigaction sa;

  sa.sa_sigaction = sigsegv_handler;
  sa.sa_flags = SA_SIGINFO | SA_RESTART;
  sigaction(SIGSEGV, &sa, NULL);

  foo = NULL;
  *foo = 3;
  return 0;
}
? gcc -o test test.c
? ./test
? echo $?
1
? uname -a
Linux pizda.ninka.net 2.4.14-pre4 #1 SMP Mon Oct 29 18:55:18 PST 2001 sparc64 unknown
?