/* $OpenBSD: uthread_machdep.c,v 1.2 2002/05/10 10:17:22 art Exp $ */ /* David Leonard, <d@csee.uq.edu.au>. Public domain. */ /* * Machine-dependent thread state functions for OpenBSD/alpha */ #include <pthread.h> #include "pthread_private.h" #define ALIGNBYTES 15 struct frame { long ra; long s[7]; long t12; long fs[8]; }; /* * Given a stack and an entry function, initialise a state * structure that can be later switched to. */ void _thread_machdep_init(statep, base, len, entry) struct _machdep_state* statep; void *base; int len; void (*entry)(void); { struct frame *f; f = (struct frame *)(((u_int64_t)base + len - sizeof *f) & ~ALIGNBYTES); f->ra = f->t12 = (u_int64_t)entry; statep->sp = (u_int64_t)f; } void _thread_machdep_save_float_state(statep) struct _machdep_state* statep; { } void _thread_machdep_restore_float_state(statep) struct _machdep_state* statep; { }