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/*-
* Copyright (c) 1999 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_SIGFRAME_H_
#define _MACHINE_SIGFRAME_H_
/*
* Signal frames, arguments passed to application signal handlers.
*/
#ifdef _KERNEL
#ifdef COMPAT_43
struct osigframe {
/*
* The first four members may be used by applications.
*/
register_t sf_signum;
/*
* Either 'int' for old-style FreeBSD handler or 'siginfo_t *'
* pointing to sf_siginfo for SA_SIGINFO handlers.
*/
register_t sf_arg2;
/* Points to sf_siginfo.si_sc. */
register_t sf_scp;
register_t sf_addr;
/*
* The following arguments are not constrained by the
* function call protocol.
* Applications are not supposed to access these members,
* except using the pointers we provide in the first three
* arguments.
*/
union {
__osiginfohandler_t *sf_action;
__sighandler_t *sf_handler;
} sf_ahu;
/* In the SA_SIGINFO case, sf_arg2 points here. */
osiginfo_t sf_siginfo;
};
#endif
#ifdef COMPAT_FREEBSD4
/* FreeBSD 4.x */
struct sigframe4 {
register_t sf_signum;
register_t sf_siginfo; /* code or pointer to sf_si */
register_t sf_ucontext; /* points to sf_uc */
register_t sf_addr; /* undocumented 4th arg */
union {
__siginfohandler_t *sf_action;
__sighandler_t *sf_handler;
} sf_ahu;
struct ucontext4 sf_uc; /* = *sf_ucontext */
siginfo_t sf_si; /* = *sf_siginfo (SA_SIGINFO case) */
};
#endif
#endif
#include <x86/sigframe.h>
#endif /* !_MACHINE_SIGFRAME_H_ */
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