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Re: Signal handler arguments

From: Ulrich Drepper <drepper at redhat dot com>
To: Ralf Baechle <ralf at linux-mips dot org>
Cc: libc-hacker at sources dot redhat dot com
Date: Tue, 17 Sep 2002 21:05:59 -0700
Subject: Re: Signal handler arguments
References: <20020918052025.A23294@linux-mips.org>

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Ralf Baechle wrote:

handler(signr, 0, struct sigcontext *)

The rt-signal handlers (setup with SA_SIGINFO) get invoked as:

handler(signr, struct siginfo *, struct ucontext *)

What do applicable standards say about the arguments passed to signal
handlers?

void (*sa_handler)(int) What to do on receipt of signal.
sigset_t sa_mask Set of signals to be blocked during execution
of the signal handling function.
int sa_flags Special flags.
void (*)(int, siginfo_t *, void *) sa_sigaction
Pointer to signal handler function or one
of the macros SIG_IGN or SIG_DFL.

- -- - ---------------. ,-. 1325 Chesapeake Terrace
Ulrich Drepper \ ,-------------------' \ Sunnyvale, CA 94089 USA
Red Hat `--' drepper at redhat.com `------------------------
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Follow-Ups:
- Re: Signal handler arguments
  - From: Roland McGrath

References:
- Signal handler arguments
  - From: Ralf Baechle

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