1 #include <u.h> 2 #include <libc.h> 3 #include <thread.h> 4 #include "threadimpl.h" 5 6 static void 7 launcher386(void (*f)(void *arg), void *arg) 8 { 9 (*f)(arg); 10 threadexits(nil); 11 } 12 13 void 14 _threadinitstack(Thread *t, void (*f)(void*), void *arg) 15 { 16 ulong *tos; 17 18 tos = (ulong*)&t->stk[t->stksize&~7]; 19 *--tos = (ulong)arg; 20 *--tos = (ulong)f; 21 t->sched[JMPBUFPC] = (ulong)launcher386+JMPBUFDPC; 22 t->sched[JMPBUFSP] = (ulong)tos - 8; /* old PC and new PC */ 23 } 24 25