34 lines
878 B
C
34 lines
878 B
C
/*
|
|
* This file is part of the UCB release of Plan 9. It is subject to the license
|
|
* terms in the LICENSE file found in the top-level directory of this
|
|
* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
|
|
* part of the UCB release of Plan 9, including this file, may be copied,
|
|
* modified, propagated, or distributed except according to the terms contained
|
|
* in the LICENSE file.
|
|
*/
|
|
|
|
#include <u.h>
|
|
#include <libc.h>
|
|
#include <thread.h>
|
|
#include "threadimpl.h"
|
|
|
|
static void
|
|
launcher386(void (*f)(void *arg), void *arg)
|
|
{
|
|
(*f)(arg);
|
|
threadexits(nil);
|
|
}
|
|
|
|
void
|
|
_threadinitstack(Thread *t, void (*f)(void*), void *arg)
|
|
{
|
|
uint32_t *tos;
|
|
|
|
tos = (uint32_t*)&t->stk[t->stksize&~7];
|
|
*--tos = (uint32_t)arg;
|
|
*--tos = (uint32_t)f;
|
|
t->sched[JMPBUFPC] = (uint32_t)launcher386+JMPBUFDPC;
|
|
t->sched[JMPBUFSP] = (uint32_t)tos - 8; /* old PC and new PC */
|
|
}
|
|
|