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Annotation of cci/sys/h/signal.h, revision 1.1.1.2

1.1       root        1: /*     signal.h        6.1     83/08/14        */
                      2: 
                      3: #ifndef        NSIG
                      4: #define NSIG   32
                      5: 
                      6: #define        SIGHUP  1       /* hangup */
                      7: #define        SIGINT  2       /* interrupt */
                      8: #define        SIGQUIT 3       /* quit */
                      9: #define        SIGILL  4       /* illegal instruction (not reset when caught) */
                     10: #define            ILL_RESAD_FAULT     0x0     /* reserved addressing fault */
                     11: #define            ILL_PRIVIN_FAULT    0x1     /* privileged instruction fault */
                     12: #define            ILL_RESOP_FAULT     0x2     /* reserved operand fault */
                     13: #define        SIGTRAP 5       /* trace trap (not reset when caught) */
                     14: #define        SIGIOT  6       /* IOT instruction */
                     15: #define        SIGEMT  7       /* EMT instruction */
                     16: #define        SIGFPE  8       /* floating point exception */
                     17: #define            FPE_INTOVF_TRAP     0x1     /* integer overflow */
                     18: #define            FPE_INTDIV_TRAP     0x2     /* integer divide by zero */
1.1.1.2 ! root       19: #define            FPE_FLTDIV_TRAP     0x3     /* floating/decimal divide by zero */
        !            20: #define            FPE_FLTOVF_TRAP     0x4     /* floating overflow */
1.1       root       21: #define            FPE_FLTUND_TRAP     0x5     /* floating underflow */
                     22: #define        SIGKILL 9       /* kill (cannot be caught or ignored) */
                     23: #define        SIGBUS  10      /* bus error */
                     24: #define        SIGSEGV 11      /* segmentation violation */
                     25: #define        SIGSYS  12      /* bad argument to system call */
                     26: #define        SIGPIPE 13      /* write on a pipe with no one to read it */
                     27: #define        SIGALRM 14      /* alarm clock */
                     28: #define        SIGTERM 15      /* software termination signal from kill */
                     29: #define        SIGURG  16      /* urgent condition on IO channel */
                     30: #define        SIGSTOP 17      /* sendable stop signal not from tty */
                     31: #define        SIGTSTP 18      /* stop signal from tty */
                     32: #define        SIGCONT 19      /* continue a stopped process */
                     33: #define        SIGCHLD 20      /* to parent on child stop or exit */
                     34: #define        SIGTTIN 21      /* to readers pgrp upon background tty read */
                     35: #define        SIGTTOU 22      /* like TTIN for output if (tp->t_local&LTOSTOP) */
                     36: #define        SIGIO   23      /* input/output possible signal */
                     37: #define        SIGXCPU 24      /* exceeded CPU time limit */
                     38: #define        SIGXFSZ 25      /* exceeded file size limit */
                     39: #define        SIGVTALRM 26    /* virtual time alarm */
                     40: #define        SIGPROF 27      /* profiling time alarm */
                     41: 
                     42: #ifndef KERNEL
                     43: int    (*signal())();
                     44: #endif
                     45: 
                     46: /*
                     47:  * Signal vector "template" used in sigvec call.
                     48:  */
                     49: struct sigvec {
                     50:        int     (*sv_handler)();        /* signal handler */
                     51:        int     sv_mask;                /* signal mask to apply */
                     52:        int     sv_onstack;             /* if non-zero, take on signal stack */
                     53: };
                     54: 
                     55: /*
                     56:  * Structure used in sigstack call.
                     57:  */
                     58: struct sigstack {
                     59:        char    *ss_sp;                 /* signal stack pointer */
                     60:        int     ss_onstack;             /* current status */
                     61: };
                     62: 
                     63: /*
                     64:  * Information pushed on stack when a signal is delivered.
                     65:  * This is used by the kernel to restore state following
                     66:  * execution of the signal handler.  It is also made available
                     67:  * to the handler to allow it to properly restore state if
                     68:  * a non-standard exit is performed.
                     69:  */
                     70: struct sigcontext {
                     71:        int     sc_onstack;             /* sigstack state to restore */
                     72:        int     sc_mask;                /* signal mask to restore */
                     73:        int     sc_sp;                  /* sp to restore */
                     74:        int     sc_pc;                  /* pc to retore */
                     75:        int     sc_ps;                  /* psl to restore */
                     76: };
                     77: 
                     78: #define        BADSIG          (int (*)())-1
                     79: #define        SIG_DFL         (int (*)())0
                     80: #define        SIG_IGN         (int (*)())1
                     81: 
                     82: #ifdef KERNEL
                     83: #define        SIG_CATCH       (int (*)())2
                     84: #define        SIG_HOLD        (int (*)())3
                     85: #endif
                     86: #endif

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