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29 * @(#)signal.h 8.1 (Berkeley) 6/11/93
33 #ifndef _MACHINE_SIGNAL_H_
34 #define _MACHINE_SIGNAL_H_
36 #include <sys/cdefs.h>
37 #include <sys/_sigset.h>
40 * Machine-dependent signal definitions
43 typedef int sig_atomic_t;
46 #include <machine/trap.h> /* codes for SIGILL, SIGFPE */
49 * Information pushed on stack when a signal is delivered.
50 * This is used by the kernel to restore state following
51 * execution of the signal handler. It is also made available
52 * to the handler to allow it to restore state properly if
53 * a non-standard exit is performed.
56 #if defined(_KERNEL) && defined(COMPAT_43)
58 * Only the kernel should need these old type definitions.
61 int sc_onstack; /* sigstack state to restore */
62 osigset_t sc_mask; /* signal mask to restore */
63 int sc_esp; /* machine state follows: */
86 * The sequence of the fields/registers in struct sigcontext should match
87 * those in mcontext_t and struct trapframe.
90 struct __sigset sc_mask; /* signal mask to restore */
91 int sc_onstack; /* sigstack state to restore */
92 int sc_gs; /* machine state (struct trapframe) */
111 int sc_len; /* sizeof(mcontext_t) */
113 * See <machine/ucontext.h> and <machine/npx.h> for
114 * the following fields.
119 int sc_fpstate[128] __aligned(16);
125 int sc_xfpustate_len;
134 #define sc_eflags sc_efl
136 #endif /* __BSD_VISIBLE */
138 #endif /* !_MACHINE_SIGNAL_H_ */