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33 * @(#)signal.h 8.1 (Berkeley) 6/11/93
34 * $FreeBSD: src/sys/i386/include/signal.h,v 1.12 1999/11/12 13:52:11 marcel Exp $
35 * $DragonFly: src/sys/cpu/i386/include/signal.h,v 1.2 2003/06/17 04:28:36 dillon Exp $
38 #ifndef _MACHINE_SIGNAL_H_
39 #define _MACHINE_SIGNAL_H_
42 * Machine-dependent signal definitions
45 typedef int sig_atomic_t;
47 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
49 #include <machine/trap.h> /* codes for SIGILL, SIGFPE */
52 * Information pushed on stack when a signal is delivered.
53 * This is used by the kernel to restore state following
54 * execution of the signal handler. It is also made available
55 * to the handler to allow it to restore state properly if
56 * a non-standard exit is performed.
58 typedef unsigned int osigset_t;
61 int sc_onstack; /* sigstack state to restore */
62 osigset_t sc_mask; /* signal mask to restore */
63 int sc_esp; /* machine state follows: */
85 * The sequence of the fields/registers in struct sigcontext should match
86 * those in mcontext_t.
89 sigset_t sc_mask; /* signal mask to restore */
90 int sc_onstack; /* sigstack state to restore */
91 int sc_gs; /* machine state (struct trapframe): */
111 * XXX FPU state is 27 * 4 bytes h/w, 1 * 4 bytes s/w (probably not
112 * needed here), or that + 16 * 4 bytes for emulators (probably all
113 * needed here). The "spare" bytes are mostly not spare.
115 int sc_fpregs[28]; /* machine state (FPU): */
123 #define sc_eflags sc_efl
125 #endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */
127 #endif /* !_MACHINE_SIGNAL_H_ */