1991/1112/gnot/trap.c (diff list | history)

1991/1108/sys/src/9/gnot/trap.c:88,95 – 1991/1112/sys/src/9/gnot/trap.c:88,97 (short | long | prev | next)
1990/03091		user = !(ur->sr&SUPER); if(u)
1991/1112		if(u) {
1990/03091		u->p->pc = ur->pc; /* BUG */
1991/1112		u->dbgreg = ur; }
1990/03091		if(user){
1991/0705		sprint(buf, "sys: %s pc=0x%lux", excname(ur->vo), ur->pc);
1990/03091		postnote(u->p, 1, buf, NDebug);
1991/1108/sys/src/9/gnot/trap.c:99,110 – 1991/1112/sys/src/9/gnot/trap.c:101,108
1990/03091		exit(); }
1991/0705
1991/1108		if(user) { if(u->p->procctl) procctl(u->p); if(u->nnote) notify(ur); }
1991/1112		if(user) notify(ur);
1990/03091		} void
1991/1108/sys/src/9/gnot/trap.c:147,157 – 1991/1112/sys/src/9/gnot/trap.c:145,156
1990/03091		{ ulong sp; lock(&u->p->debug); if(u->nnote==0){ unlock(&u->p->debug);
1991/1112		if(u->p->procctl) procctl(u->p); if(u->nnote==0)
1990/03091		return; }
1991/1112		lock(&u->p->debug);
1991/0727		u->p->notepending = 0;
1990/03091		if(u->note[0].flag!=NUser && (u->notified || u->notify==0)){ if(u->note[0].flag == NDebug)
1991/1108/sys/src/9/gnot/trap.c:259,264 – 1991/1112/sys/src/9/gnot/trap.c:258,264
1990/03091		u->p->insyscall = 1; ur = aur;
1991/1112		u->dbgreg = aur;
1990/0312		u->p->pc = ur->pc;
1990/03091		if(ur->sr & SUPER) panic("recursive system call");
1991/1108/sys/src/9/gnot/trap.c:306,320 – 1991/1112/sys/src/9/gnot/trap.c:306,317
1990/0511		}
1991/0705
1991/1108		u->nerrlab = 0; if(u->p->procctl) procctl(u->p);
1991/0705
1990/03091		u->p->insyscall = 0;
1991/0926		u->p->psstate = 0;
1991/0705		if(r0 == NOTED) /* ugly hack */
1991/0717		noted(aur, *(ulong*)(sp+BY2WD)); /* doesn't return */
1991/0725		if(u->nnote && r0!=FORK){
1991/1112		if(u->p->procctl || (u->nnote && r0!=FORK)){
1990/03091		ur->r0 = ret; notify(ur); }
1991/1108/sys/src/9/gnot/trap.c:325,328 – 1991/1112/sys/src/9/gnot/trap.c:322,349
1990/1226		execpc(ulong entry) { ((Ureg*)UREGADDR)->pc = entry;
1991/1112		} /* This routine must save the values of registers the user is not permitted to write * from devproc and the restore the saved values before returning */ void setregisters(Ureg *xp, char *pureg, char *uva, int n) { ushort sr; ulong magic; ushort vo; char microstate[UREGVARSZ]; sr = xp->sr; vo = xp->vo; magic = xp->magic; memmove(microstate, xp->microstate, UREGVARSZ); memmove(pureg, uva, n); xp->sr = (sr&0xff00) |(xp->sr&0xff); xp->vo = vo; xp->magic = magic; memmove(xp->microstate, microstate, UREGVARSZ);
1990/03091		}