1991/0513/gnot/trap.c (diff list | history)

1991/0513/sys/src/9/gnot/trap.c:250,255 – 1991/0614/sys/src/9/gnot/trap.c:250,256 (short | long | prev | next)
1990/03091		long syscall(Ureg *aur) {
1991/0614		int i;
1990/03091		long ret; ulong sp; ulong r0;
1991/0513/sys/src/9/gnot/trap.c:292,302 – 1991/0614/sys/src/9/gnot/trap.c:293,309
1990/1110		msg = "sys: odd stack";
1990/0511		goto Bad; }
1990/11211		if(sp<(USTKTOP-BY2PG) || sp>(USTKTOP-5*BY2WD)) validaddr(sp, 5*BY2WD, 0);
1991/0614		if(sp<(USTKTOP-BY2PG) || sp>(USTKTOP-(1+MAXSYSARG)*BY2WD)) validaddr(sp, (1+MAXSYSARG)*BY2WD, 0);
1990/0515		ret = (*systab[r0])((ulong*)(sp+BY2WD));
1991/0614		poperror();
1990/0511		}
1990/03091		u->nerrlab = 0;
1991/0614		if(u->nerrlab){ print("unbalanced error stack: %d extra\n", u->nerrlab); for(i = 0; i < NERR; i++) print("sp=%lux pc=%lux\n", u->errlab[i].sp, u->errlab[i].pc); panic("bad rob"); }
1990/03091		u->p->insyscall = 0; if(r0 == NOTED) /* ugly hack */
1991/0503		noted(aur); /* doesn't return */