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#include <u.h>
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#include <libc.h>
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#include <thread.h>
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#include "threadimpl.h"
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/* first argument goes in a register; simplest just to ignore it */
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static void
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launcherarm(int, void (*f)(void *arg), void *arg)
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{
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	(*f)(arg);
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	threadexits(nil);
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}
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void
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_threadinitstack(Thread *t, void (*f)(void*), void *arg)
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{
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	ulong *tos;
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	tos = (ulong*)&t->stk[t->stksize&~7];
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	*--tos = (ulong)arg;
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	*--tos = (ulong)f;
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	*--tos = 0;	/* first arg to launchermips */
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	*--tos = 0;	/* place to store return PC */
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	t->sched[JMPBUFPC] = (ulong)launcherarm+JMPBUFDPC;
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	t->sched[JMPBUFSP] = (ulong)tos;
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}
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