usr/src/sys/pmax/include/signal.h

/*
 * Copyright (c) 1992, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Ralph Campbell.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)signal.h    8.2 (Berkeley) %G%
 */

/*
 * Machine-dependent signal definitions
 */

typedef int sig_atomic_t;

#if !defined(_POSIX_SOURCE) && !defined(_ANSI_SOURCE)
#include <machine/trap.h>       /* codes for SIGILL, SIGFPE */

/*
 * 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.
 */
struct  sigcontext {
        int     sc_onstack;     /* sigstack state to restore */
        int     sc_mask;        /* signal mask to restore */
        int     sc_pc;          /* pc at time of signal */
        int     sc_regs[34];    /* processor regs 0 to 31, mullo, mullhi */
        int     sc_fpused;      /* fp has been used */
        int     sc_fpregs[33];  /* fp regs 0 to 31 and csr */
        int     sc_fpc_eir;     /* floating point exception instruction reg */
};
#endif