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Annotation of 43BSDReno/sys/vax/kdbparam.h, revision 1.1

1.1     ! root        1: /*
        !             2:  *     @(#)kdbparam.h  7.3 (Berkeley) 6/22/90
        !             3:  */
        !             4: 
        !             5: #define DBNAME "kdb\n"
        !             6: #define LPRMODE "%R"
        !             7: #define OFFMODE "+%R"
        !             8: 
        !             9: #define        KDB_IPL         0xf     /* highest priority software interrupt */
        !            10: #define        setsoftkdb()    mtpr(SIRR, KDB_IPL)
        !            11: 
        !            12: #define        MAXINT  0x7fffffff
        !            13: #define        MAXSTOR (KERNBASE - ctob(UPAGES))
        !            14: 
        !            15: #define        ENTRYMASK       1                       /* check for entry masks */
        !            16: #define        ishiddenreg(p)  ((p) <= &kdbreglist[8])
        !            17: 
        !            18: #define BPT    03
        !            19: #define TBIT   020
        !            20: 
        !            21: #define        clrsstep()      (kdbpcb.pcb_psl &= ~TBIT)
        !            22: #define        setsstep()      (kdbpcb.pcb_psl |= TBIT)
        !            23: 
        !            24: #define        SETBP(ins)      (BPT | ((ins) & ~0xff))
        !            25: 
        !            26: #define        getprevpc(fp)   kdbget((fp)+16, DSP)    /* pc of caller */
        !            27: #define        getprevframe(fp) (kdbget((fp)+12, DSP)&~2)      /* fp of caller */
        !            28: #define        NOFRAME         0                       /* fp at top of call stack */
        !            29: 
        !            30: #define        issignalpc(pc)  (MAXSTOR < (pc) && (pc) < MAXSTOR+ctob(UPAGES))
        !            31: #define        getsignalpc(fp) kdbget((fp)+92, DSP)    /* pc of caller before signal */
        !            32: 
        !            33: /* long to ints and back (puns) */
        !            34: union {
        !            35:        int     I[2];
        !            36:        long    L;
        !            37: } itolws;
        !            38: 
        !            39: #define leng(a)                itol(0,a)
        !            40: #define shorten(a)     ((short)(a))
        !            41: #define itol(a,b)      (itolws.I[0]=(b), itolws.I[1]=(a), itolws.L)
        !            42: #define        byte(a)         ((a) & 0xff)
        !            43: #define        btol(a)         ((a))
        !            44: 
        !            45: /* check for address wrap around */
        !            46: #define        addrwrap(oaddr,newaddr) (((oaddr)^(newaddr)) >> 24)
        !            47: /*
        !            48:  * INSTACK tells whether its argument is a stack address.
        !            49:  * INUDOT tells whether its argument is in the (extended) u. area.
        !            50:  * These are used for consistency checking and dont have to be exact.
        !            51:  *
        !            52:  * INKERNEL tells whether its argument is a kernel space address.
        !            53:  * KVTOPH trims a kernel virtal address back to its offset
        !            54:  * in the kernel address space.
        !            55:  */
        !            56: #define        INSTACK(x)      (((x)&0xf0000000) == 0x70000000)
        !            57: #define        INUDOT(x)       (((x)&0xf0000000) == 0x70000000)
        !            58: #define        INKERNEL(x)     (((x)&0xf0000000) == 0x80000000)
        !            59: 
        !            60: #define        KVTOPH(x)       ((x)&~ 0x80000000)
        !            61: #define        KERNOFF         0x80000000

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