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/* Copyright (C) 1992 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/* The sigvec system call on MIPS Ultrix takes an additional
parameter, which is the address that is actually called when the
signal occurs.
When a signal occurs, we arrange for the kernel to call __handler.
That will save the frame and stack pointers into the context, and
then jump to this routine. See __handler.S.
This code is based on sysdeps/unix/bsd/sun4/sigtramp.c, but it's
different because since we get passed the user signal handler we
don't actually need a trampoline. */
#include <ansidecl.h>
#include <signal.h>
#include <stddef.h>
#include <errno.h>
/* The user's signal handler is called with three arguments. */
typedef void (*handler_type) (int sig, int code, struct sigcontext *);
/* Defined in signal.S. */
extern __sighandler_t EXFUN(__raw_signal, (int sig, __sighandler_t func,
void (*)(int sig, int code,
struct sigcontext *,
handler_type)));
extern void EXFUN(__handler, (int sig, int code,
struct sigcontext *,
handler_type));
__sighandler_t
DEFUN(signal, (sig, func),
int sig AND __sighandler_t func)
{
return __raw_signal (sig, func, __handler);
}
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