static void xnsched_register_class(struct xnsched_class *sched_class)
{
sched_class->next = xnsched_class_highest;
xnsched_class_highest = sched_class;
/*
* Classes shall be registered by increasing priority order,
* idle first and up.
*/
XENO_BUGON(NUCLEUS, sched_class->next &&
sched_class->next->weight > sched_class->weight);
xnloginfo("scheduling class %s registered.\n", sched_class->name);
}
void __exit __xeno_sys_exit(void)
{
xnpod_shutdown(XNPOD_NORMAL_EXIT);
#ifndef __XENO_SIM__
/* Must take place before xnpod_umount(). */
xnshadow_cleanup();
#endif
xntbase_umount();
xnpod_umount();
xnarch_exit();
#ifndef __XENO_SIM__
xnheap_umount();
#ifdef CONFIG_XENO_OPT_PIPE
xnpipe_umount();
#endif
xnheap_destroy_mapped(&__xnsys_global_ppd.sem_heap, NULL, NULL);
#endif /* !__XENO_SIM__ */
xnloginfo("real-time nucleus unloaded.\n");
}
int __init __xeno_sys_init(void)
{
int ret;
xnmod_sysheap_size = module_param_value(sysheap_size_arg) * 1024;
ret = xnarch_init();
if (ret)
goto fail;
#ifndef __XENO_SIM__
ret = xnheap_init_mapped(&__xnsys_global_ppd.sem_heap,
CONFIG_XENO_OPT_GLOBAL_SEM_HEAPSZ * 1024,
XNARCH_SHARED_HEAP_FLAGS);
if (ret)
goto cleanup_arch;
xnheap_set_label(&__xnsys_global_ppd.sem_heap, "global sem heap");
xnheap_init_vdso();
init_hostrt();
#endif /* !__XENO_SIM__ */
#ifdef __KERNEL__
xnpod_mount();
xnintr_mount();
#ifdef CONFIG_XENO_OPT_PIPE
ret = xnpipe_mount();
if (ret)
goto cleanup_proc;
#endif /* CONFIG_XENO_OPT_PIPE */
#ifdef CONFIG_XENO_OPT_SELECT
ret = xnselect_mount();
if (ret)
goto cleanup_pipe;
#endif /* CONFIG_XENO_OPT_SELECT */
ret = xnshadow_mount();
if (ret)
goto cleanup_select;
ret = xnheap_mount();
if (ret)
goto cleanup_shadow;
#endif /* __KERNEL__ */
xntbase_mount();
xnloginfo("real-time nucleus v%s (%s) loaded.\n",
XENO_VERSION_STRING, XENO_VERSION_NAME);
#ifdef CONFIG_XENO_OPT_DEBUG
xnloginfo("debug mode enabled.\n");
#endif
initq(&xnmod_glink_queue);
xeno_nucleus_status = 0;
xnarch_cpus_and(nkaffinity, nkaffinity, xnarch_supported_cpus);
return 0;
#ifdef __KERNEL__
cleanup_shadow:
xnshadow_cleanup();
cleanup_select:
#ifdef CONFIG_XENO_OPT_SELECT
xnselect_umount();
cleanup_pipe:
#endif /* CONFIG_XENO_OPT_SELECT */
#ifdef CONFIG_XENO_OPT_PIPE
xnpipe_umount();
cleanup_proc:
#endif /* CONFIG_XENO_OPT_PIPE */
xnpod_umount();
cleanup_arch:
xnarch_exit();
#endif /* __KERNEL__ */
fail:
xnlogerr("system init failed, code %d.\n", ret);
xeno_nucleus_status = ret;
return ret;
}