1991/1108/power/faultmips.c (diff list | history)

power/faultmips.c on 1990/1212
1990/1212		#include "u.h" #include "lib.h" #include "mem.h" #include "dat.h" #include "fns.h" #include "ureg.h" #include "errno.h" /* * find out fault address and type of access. * Call common fault handler. */ void faultmips(Ureg *ur, int user, int code) { ulong addr; extern char *excname[];
1991/0705		char buf[ERRLEN];
1990/1212		int read; addr = ur->badvaddr; addr &= ~(BY2PG-1); read = !(code==CTLBM || code==CTLBS);
1991/0926
1990/1212		if(fault(addr, read) < 0){ if(user){
1991/0705		sprint(buf, "sys: fault %s pc=0x%lux addr=0x%lux", read? "read" : "write", ur->pc, ur->badvaddr); postnote(u->p, 1, buf, NDebug); return;
1990/1212		} print("kernel %s badvaddr=0x%lux\n", excname[code], ur->badvaddr); print("status=0x%lux pc=0x%lux sp=0x%lux\n", ur->status, ur->pc, ur->sp); dumpregs(ur); panic("fault"); } } /* * called in sysfile.c */ void evenaddr(ulong addr) { if(addr & 3){ postnote(u->p, 1, "sys: odd address", NDebug); error(Ebadarg); } }