1990/0802/gnot/fault.c (diff list | history)

1990/0724/sys/src/9/gnot/fault.c:108,116 – 1990/0802/sys/src/9/gnot/fault.c:108,122 (short | long | prev | next)
1990/03091		/* grow stack */ o = s->o; n = o->npte;
1990/0802		lock(o); if(waserror()){ unlock(o); pprint("can't allocate stack page\n"); goto cant; }
1990/03091		growpte(o, (s->maxva-addr)>>PGSHIFT);
1990/0802		poperror();
1990/03091		/* stacks grown down, sigh */ lock(o); memcpy(o->pte+(o->npte-n), o->pte, n*sizeof(PTE)); memset(o->pte, 0, (o->npte-n)*sizeof(PTE)); unlock(o);