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Implement cpu_set_upcall(). Required by libthr and used by

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thr_create(2). This implementation is so far only compile tested.
But since this is also the last of the functions required to
support libthr, we're now functionally complete (for some weird
definition of functionally; and complete). Runtime testing can
commence.
This commit is contained in:
Marcel Moolenaar 2003-05-31 21:14:25 +00:00
parent a3e7d3f16f
commit 480a728dee
1 changed files with 22 additions and 0 deletions
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22
sys/ia64/ia64/vm_machdep.c
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@ -114,6 +114,28 @@ cpu_thread_setup(struct thread *td)
void
cpu_set_upcall(struct thread *td, void *pcb)
{
struct pcb *pcb2;
struct trapframe *tf;
pcb2 = td->td_pcb;
bcopy(pcb, pcb2, sizeof(*pcb2));
tf = (struct trapframe *)pcb2 - 1;
td->td_frame = tf;
tf->tf_length = sizeof(struct trapframe);
tf->tf_flags = FRAME_SYSCALL;
tf->tf_scratch.gr8 = 0;
tf->tf_scratch.gr9 = 1;
tf->tf_scratch.gr10 = 0;
/* XXX */
pcb2->pcb_special.bspstore = td->td_kstack + tf->tf_special.ndirty;
pcb2->pcb_special.pfs = 0;
pcb2->pcb_current_pmap = vmspace_pmap(td->td_proc->p_vmspace);
pcb2->pcb_special.sp = (uintptr_t)tf - 16;
pcb2->pcb_special.rp = FDESC_FUNC(fork_trampoline);
cpu_set_fork_handler(td, (void (*)(void*))fork_return, td);
}
void