1 /* 2 * @(#)kdbparam.h 7.2 (Berkeley) 05/07/88 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) <= ®list[8]) 17 18 #define BPT 03 19 #define TBIT 020 20 21 #define clrsstep() (pcb.pcb_psl &= ~TBIT) 22 #define setsstep() (pcb.pcb_psl |= TBIT) 23 24 #define SETBP(ins) (BPT | ((ins) & ~0xff)) 25 26 #define getprevpc(fp) get((fp)+16, DSP) /* pc of caller */ 27 #define getprevframe(fp) (get((fp)+12, DSP)&~2) /* fp of caller */ 28 #define getnargs(fp) (get((fp)+6, DSP)&0xffff) 29 #define nextarg(ap) ((ap) + 4) /* next argument in list */ 30 #define NOFRAME 0 /* fp at top of call stack */ 31 32 #define issignalpc(pc) (MAXSTOR < (pc) && (pc) < MAXSTOR+ctob(UPAGES)) 33 #define getsignalpc(fp) get((fp)+92, DSP) /* pc of caller before signal */ 34 35 /* long to ints and back (puns) */ 36 union { 37 int I[2]; 38 long L; 39 } itolws; 40 41 #define leng(a) itol(0,a) 42 #define shorten(a) ((short)(a)) 43 #define itol(a,b) (itolws.I[0]=(b), itolws.I[1]=(a), itolws.L) 44 #define byte(a) ((a) & 0xff) 45 #define btol(a) ((a)) 46 47 /* check for address wrap around */ 48 #define addrwrap(oaddr,newaddr) (((oaddr)^(newaddr)) >> 24) 49 /* 50 * INSTACK tells whether its argument is a stack address. 51 * INUDOT tells whether its argument is in the (extended) u. area. 52 * These are used for consistency checking and dont have to be exact. 53 * 54 * INKERNEL tells whether its argument is a kernel space address. 55 * KVTOPH trims a kernel virtal address back to its offset 56 * in the kernel address space. 57 */ 58 #define INSTACK(x) (((x)&0xf0000000) == 0x70000000) 59 #define INUDOT(x) (((x)&0xf0000000) == 0x70000000) 60 #define INKERNEL(x) (((x)&0xf0000000) == 0x80000000) 61 62 #define KVTOPH(x) ((x)&~ 0x80000000) 63 #define KERNOFF 0x80000000 64