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/*-
* Copyright (c) 1986, 1989, 1991, 1993
* The Regents of the University of California. 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.
* 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.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* @(#)signal.h 8.1 (Berkeley) 6/11/93
* $FreeBSD$
*/
#ifndef _MACHINE_SIGNAL_H_
#define _MACHINE_SIGNAL_H_
#include <sys/cdefs.h>
#include <sys/_sigset.h>
/*
* Machine-dependent signal definitions
*/
typedef int sig_atomic_t;
#if __XSI_VISIBLE
/*
* Minimum signal stack size. The current signal frame
* for i386 is 408 bytes large.
*/
#define MINSIGSTKSZ (512 * 4)
#endif
#if __BSD_VISIBLE
#include <machine/trap.h> /* codes for SIGILL, SIGFPE */
/*
* Only the kernel should need these old type definitions.
*/
#if defined(_KERNEL) && defined(COMPAT_43)
/*
* Information pushed on stack when a signal is delivered.
* This is used by the kernel to restore state following
* execution of the signal handler. It is also made available
* to the handler to allow it to restore state properly if
* a non-standard exit is performed.
*/
struct osigcontext {
int sc_onstack; /* sigstack state to restore */
osigset_t sc_mask; /* signal mask to restore */
int sc_esp; /* machine state follows: */
int sc_ebp;
int sc_isp;
int sc_eip;
int sc_efl;
int sc_es;
int sc_ds;
int sc_cs;
int sc_ss;
int sc_edi;
int sc_esi;
int sc_ebx;
int sc_edx;
int sc_ecx;
int sc_eax;
int sc_gs;
int sc_fs;
int sc_trapno;
int sc_err;
};
#endif
/*
* The sequence of the fields/registers in struct sigcontext should match
* those in mcontext_t.
*/
struct sigcontext {
struct __sigset sc_mask; /* signal mask to restore */
int sc_onstack; /* sigstack state to restore */
int sc_gs; /* machine state (struct trapframe) */
int sc_fs;
int sc_es;
int sc_ds;
int sc_edi;
int sc_esi;
int sc_ebp;
int sc_isp;
int sc_ebx;
int sc_edx;
int sc_ecx;
int sc_eax;
int sc_trapno;
int sc_err;
int sc_eip;
int sc_cs;
int sc_efl;
int sc_esp;
int sc_ss;
int sc_len; /* sizeof(mcontext_t) */
/*
* XXX - See <machine/ucontext.h> and <machine/npx.h> for
* the following fields.
*/
int sc_fpformat;
int sc_ownedfp;
int sc_spare1[1];
int sc_fpstate[128] __aligned(16);
int sc_spare2[8];
};
#define sc_sp sc_esp
#define sc_fp sc_ebp
#define sc_pc sc_eip
#define sc_ps sc_efl
#define sc_eflags sc_efl
#endif /* __BSD_VISIBLE */
#endif /* !_MACHINE_SIGNAL_H_ */
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