2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1986, 1989, 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 * Copyright (c) 2003 Peter Wemm.
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9 * modification, are permitted provided that the following conditions
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12 * notice, this list of conditions and the following disclaimer.
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17 * may be used to endorse or promote products derived from this software
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32 * @(#)signal.h 8.1 (Berkeley) 6/11/93
37 #define _X86_SIGNAL_H 1
40 * Machine-dependent signal definitions
43 #include <sys/cdefs.h>
44 #include <sys/_sigset.h>
47 typedef int sig_atomic_t;
51 struct __sigset sc_mask; /* signal mask to restore */
52 int sc_onstack; /* sigstack state to restore */
53 int sc_gs; /* machine state (struct trapframe) */
72 int sc_len; /* sizeof(mcontext_t) */
74 * See <machine/ucontext.h> and <machine/npx.h> for
75 * the following fields.
80 int sc_fpstate[128] __aligned(16);
95 #define sc_eflags sc_efl
97 #endif /* __BSD_VISIBLE */
101 typedef long sig_atomic_t;
105 * Information pushed on stack when a signal is delivered.
106 * This is used by the kernel to restore state following
107 * execution of the signal handler. It is also made available
108 * to the handler to allow it to restore state properly if
109 * a non-standard exit is performed.
111 * The sequence of the fields/registers after sc_mask in struct
112 * sigcontext must match those in mcontext_t and struct trapframe.
115 struct __sigset sc_mask; /* signal mask to restore */
116 long sc_onstack; /* sigstack state to restore */
117 long sc_rdi; /* machine state (struct trapframe) */
145 long sc_len; /* sizeof(mcontext_t) */
147 * See <machine/ucontext.h> and <machine/fpu.h> for the following
152 long sc_fpstate[64] __aligned(16);
158 long sc_xfpustate_len;
162 #endif /* __BSD_VISIBLE */
163 #endif /* __amd64__ */