1 /* 2 * Copyright (c) 1988 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 * 6 * @(#)kdbparam.h 7.7 (Berkeley) 05/21/88 7 */ 8 9 #define DBNAME "kdb\n" 10 #define LPRMODE "%R" 11 #define OFFMODE "+%R" 12 13 #define MAXINT 0x7fffffff 14 #define MAXSTOR (KERNBASE - ctob(UPAGES)) 15 16 #define ENTRYMASK 1 /* check for entry masks */ 17 #define ishiddenreg(p) ((p) <= ®list[8]) 18 19 #define BPT 0x30 20 #define KCALL 0xcf 21 #define CASEL 0xfc 22 #define TBIT 0x10 23 24 #define KDB_IPL 0xf /* highest priority software interrupt */ 25 #define setsoftkdb() mtpr(SIRR, KDB_IPL) 26 27 #define clrsstep() (pcb.pcb_psl &= ~TBIT) 28 #define setsstep() (pcb.pcb_psl |= TBIT) 29 30 #define SETBP(ins) ((BPT<<24) | ((ins) & 0xffffff)) 31 32 #define getprevpc(fp) get((off_t)(fp)-8, DSP) /* pc of caller */ 33 #define getprevframe(fp) (get((off_t)(fp), DSP)&~3) /* fp of caller */ 34 #define getnargs(fp) (((get((off_t)(fp)-4, DSP)&0xffff)-4)/4) 35 #define nextarg(ap) ((ap) + 4) /* next argument in list */ 36 #define NOFRAME 0 /* fp at top of call stack */ 37 38 #define issignalpc(pc) ((unsigned)MAXSTOR < (pc) && (pc) < (unsigned)KERNBASE) 39 #define getsignalpc(fp) get((off_t)(fp)+44, DSP)/* pc of caller before signal */ 40 41 #define leng(a) ((long)((unsigned)(a))) 42 #define shorten(a) (((a) >> 16) & 0xffff) 43 #define itol(a,b) ((long)(((a) << 16) | ((b) & 0xffff))) 44 #define byte(a) (((a) >> 24) & 0xff) 45 #define btol(a) ((long)((a) << 24)) 46 47 /* check for address wrap around */ 48 #define addrwrap(oaddr,newaddr) \ 49 (((oaddr)^(newaddr)) >> 24) 50 /* 51 * INSTACK tells whether its argument is a stack address. 52 * INUDOT tells whether its argument is in the (extended) u. area. 53 * These are used for consistency checking and dont have to be exact. 54 * 55 * INKERNEL tells whether its argument is a kernel space address. 56 * KVTOPH trims a kernel virtal address back to its offset 57 * in the kernel address space. 58 */ 59 #define INSTACK(x) (((int)(x)&0xf0000000) == 0xb0000000) 60 #define INUDOT(x) (((int)(x)&0xf0000000) == 0xb0000000) 61 #define INKERNEL(x) (((int)(x)&0xf0000000) == 0xc0000000) 62 63 #define KERNOFF (KERNBASE + 0x800) /* start of kernel's text */ 64 /* #define KVTOPH(x) ((x)&~ 0xc0000000) sometimes */ 65