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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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.
*/
#ifndef _X86_SIGFRAME_H_
#define _X86_SIGFRAME_H_
/*
* Signal frames, arguments passed to application signal handlers.
*/
#ifdef __i386__
struct sigframe {
/*
* The first four members may be used by applications.
*
* NOTE: The 4th argument is undocumented, ill commented
* on and seems to be somewhat BSD "standard". Handlers
* installed with sigvec may be using it.
*/
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;
ucontext_t sf_uc; /* = *sf_ucontext */
siginfo_t sf_si; /* = *sf_siginfo (SA_SIGINFO case) */
};
#endif /* __i386__ */
#ifdef __amd64__
struct sigframe {
union {
__siginfohandler_t *sf_action;
__sighandler_t *sf_handler;
} sf_ahu;
ucontext_t sf_uc; /* = *sf_ucontext */
siginfo_t sf_si; /* = *sf_siginfo (SA_SIGINFO case) */
};
#endif /* __amd64__ */
#endif /* _X86_SIGFRAME_H_ */
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