1 #include <u.h> 2 #include <libc.h> 3 #include <thread.h> 4 #include "threadimpl.h" 5 6 /* first argument goes in a register; simplest just to ignore it */ 7 static void launcherspim(int,void (* f)(void * arg),void * arg)8launcherspim(int, void (*f)(void *arg), void *arg) 9 { 10 (*f)(arg); 11 threadexits(nil); 12 } 13 14 void _threadinitstack(Thread * t,void (* f)(void *),void * arg)15_threadinitstack(Thread *t, void (*f)(void*), void *arg) 16 { 17 ulong *tos; 18 19 tos = (ulong*)&t->stk[t->stksize&~7]; 20 *--tos = (ulong)arg; 21 *--tos = (ulong)f; 22 *--tos = 0; /* first arg to launcherspim */ 23 *--tos = 0; /* place to store return PC */ 24 t->sched[JMPBUFPC] = (ulong)launcherspim+JMPBUFDPC; 25 t->sched[JMPBUFSP] = (ulong)tos; 26 } 27