2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1986, 1989, 1991, 1993
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6 * Copyright (c) 2003 Peter Wemm.
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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 #include <machine/trap.h> /* codes for SIGILL, SIGFPE */
51 typedef int sig_atomic_t;
55 struct __sigset sc_mask; /* signal mask to restore */
56 int sc_onstack; /* sigstack state to restore */
57 int sc_gs; /* machine state (struct trapframe) */
76 int sc_len; /* sizeof(mcontext_t) */
78 * See <machine/ucontext.h> and <machine/npx.h> for
79 * the following fields.
84 int sc_fpstate[128] __aligned(16);
99 #define sc_eflags sc_efl
101 #endif /* __BSD_VISIBLE */
102 #endif /* __i386__ */
105 typedef long sig_atomic_t;
109 * Information pushed on stack when a signal is delivered.
110 * This is used by the kernel to restore state following
111 * execution of the signal handler. It is also made available
112 * to the handler to allow it to restore state properly if
113 * a non-standard exit is performed.
115 * The sequence of the fields/registers after sc_mask in struct
116 * sigcontext must match those in mcontext_t and struct trapframe.
119 struct __sigset sc_mask; /* signal mask to restore */
120 long sc_onstack; /* sigstack state to restore */
121 long sc_rdi; /* machine state (struct trapframe) */
149 long sc_len; /* sizeof(mcontext_t) */
151 * See <machine/ucontext.h> and <machine/fpu.h> for the following
156 long sc_fpstate[64] __aligned(16);
162 long sc_xfpustate_len;
166 #endif /* __BSD_VISIBLE */
167 #endif /* __amd64__ */