1991/0112/ss/trap.c (diff list | history)

1991/0110/sys/src/9/ss/trap.c:80,86 – 1991/0112/sys/src/9/ss/trap.c:80,85 (short | long | prev | next)
1990/1226		/* if(u)
1990/1223		u->p->pc = ur->pc; /* BUG */ if(user){
1990/1227		print("user trap: %s pc=0x%lux\n", excname(tbr), ur->pc); sprint(buf, "sys: trap: pc=0x%lux %s", ur->pc, excname(tbr));
1990/1223		postnote(u->p, 1, buf, NDebug); }else{
1991/0110/sys/src/9/ss/trap.c:89,99 – 1991/0112/sys/src/9/ss/trap.c:88,95
1990/1226		for(;;);
1990/1223		exit(); }
1991/0109		if(user && u->nnote){ print("notify %d\n", u->p->pid);
1991/0112		if(user && u->nnote)
1990/1223		notify(ur);
1991/0109		print("notifyed %d\n", u->p->pid); }
1990/1223		} void
1991/0110/sys/src/9/ss/trap.c:162,168 – 1991/0112/sys/src/9/ss/trap.c:158,164
1990/1223		ulong sp; lock(&u->p->debug);
1991/0109		if(u->nnote == 0){
1991/0112		if(u->nnote==0){
1990/1223		unlock(&u->p->debug); return; }
1991/0110/sys/src/9/ss/trap.c:188,193 – 1991/0112/sys/src/9/ss/trap.c:184,190
1990/1223		*(ulong*)(sp+0*BY2WD) = 0; /* arg 0 is pc */ ur->usp = sp; ur->pc = (ulong)u->notify;
1991/0112		ur->npc = (ulong)u->notify+4;
1990/1223		u->notified = 1; u->nnote--; memcpy(&u->note[0], &u->note[1], u->nnote*sizeof(Note));
1991/0110/sys/src/9/ss/trap.c:208,213 – 1991/0112/sys/src/9/ss/trap.c:205,211
1990/1223		} u->notified = 0; memcpy(*urp, u->ureg, sizeof(Ureg));
1991/0112		(*urp)->r7 = -1; /* return error from the interrupted call */
1990/1223		unlock(&u->p->debug); splhi(); rfnote(urp);
1991/0110/sys/src/9/ss/trap.c:323,329 – 1991/0112/sys/src/9/ss/trap.c:321,326
1990/1226		execpc(ulong entry) { ((Ureg*)UREGADDR)->pc = entry - 4; /* syscall advances it */ ((Ureg*)UREGADDR)->npc = entry;
1990/1223		} #include "errstr.h"