1 /* 2 * @(#)kdbparam.h 7.3 (Berkeley) 06/22/90 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 62