LWPCTL_CPU_NONE
static lwpctl_t pthread__dummy_lwpctl = { .lc_curcpu = LWPCTL_CPU_NONE };
if (thread->pt_lwpctl->lc_curcpu == LWPCTL_CPU_NONE)
thread->pt_lwpctl->lc_curcpu == LWPCTL_CPU_NONE)
pthread__assert(curcpu != LWPCTL_CPU_NONE);
LWPCTL_CPU_EXITED : LWPCTL_CPU_NONE);