/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1986, 1989, 1991, 1993
* The Regents of the University of California. All rights reserved.
* Copyright (c) 2003 Peter Wemm.
*
* 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.
* 3. 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
*/
#ifndef _X86_SIGNAL_H
#define _X86_SIGNAL_H 1
/*
* Machine-dependent signal definitions
*/
#include <sys/cdefs.h>
#include <sys/_sigset.h>
#ifdef __i386__
typedef int sig_atomic_t;
#if __BSD_VISIBLE
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) */
/*
* See <machine/ucontext.h> and <machine/npx.h> for
* the following fields.
*/
int sc_fpformat;
int sc_ownedfp;
int sc_flags;
int sc_fpstate[128] __aligned(16);
int sc_fsbase;
int sc_gsbase;
int sc_xfpustate;
int sc_xfpustate_len;
int sc_spare2[4];
};
#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 /* __i386__ */
#ifdef __amd64__
typedef long sig_atomic_t;
#if __BSD_VISIBLE
/*
* 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.
*
* The sequence of the fields/registers after sc_mask in struct
* sigcontext must match those in mcontext_t and struct trapframe.
*/
struct sigcontext {
struct __sigset sc_mask; /* signal mask to restore */
long sc_onstack; /* sigstack state to restore */
long sc_rdi; /* machine state (struct trapframe) */
long sc_rsi;
long sc_rdx;
long sc_rcx;
long sc_r8;
long sc_r9;
long sc_rax;
long sc_rbx;
long sc_rbp;
long sc_r10;
long sc_r11;
long sc_r12;
long sc_r13;
long sc_r14;
long sc_r15;
int sc_trapno;
short sc_fs;
short sc_gs;
long sc_addr;
int sc_flags;
short sc_es;
short sc_ds;
long sc_err;
long sc_rip;
long sc_cs;
long sc_rflags;
long sc_rsp;
long sc_ss;
long sc_len; /* sizeof(mcontext_t) */
/*
* See <machine/ucontext.h> and <machine/fpu.h> for the following
* fields.
*/
long sc_fpformat;
long sc_ownedfp;
long sc_fpstate[64] __aligned(16);
long sc_fsbase;
long sc_gsbase;
long sc_xfpustate;
long sc_xfpustate_len;
long sc_spare[4];
};
#endif /* __BSD_VISIBLE */
#endif /* __amd64__ */
#endif
plain