void l4x_exit_thread(void)
{
#ifndef CONFIG_L4_VCPU
int i;
if (unlikely(current->thread.is_hybrid)) {
l4_cap_idx_t hybgate;
l4_msgtag_t tag;
l4_umword_t o = 0;
hybgate = L4LX_KERN_CAP_HYBRID_BASE
+ (current->pid << L4_CAP_SHIFT);
tag = l4_ipc_gate_get_infos(hybgate, &o);
if (l4_error(tag))
printk("hybrid: Could not get gate info, leaking mem.\n");
else
kfree((void *)o);
tag = l4_task_unmap(L4_BASE_TASK_CAP,
l4_obj_fpage(hybgate, 0, L4_FPAGE_RWX),
L4_FP_ALL_SPACES);
if (l4_error(tag))
printk("hybrid: Delete of gate failed.\n");
}
for (i = 0; i < NR_CPUS; i++) {
l4_cap_idx_t thread_id = current->thread.user_thread_ids[i];
/* check if we were a non-user thread (i.e., have no
user-space partner) */
if (unlikely(l4_is_invalid_cap(thread_id) || !thread_id))
continue;
#ifdef DEBUG
LOG_printf("exit_thread: trying to delete %s(%d, " PRINTF_L4TASK_FORM ")\n",
current->comm, current->pid, PRINTF_L4TASK_ARG(thread_id));
#endif
/* If task_delete fails we don't free the task number so that it
* won't be used again. */
if (likely(!l4lx_task_delete_thread(thread_id))) {
l4x_hybrid_remove(current);
current->thread.user_thread_ids[i] = L4_INVALID_CAP;
l4lx_task_number_free(thread_id);
current->thread.started = 0;
} else
printk("%s: failed to delete task " PRINTF_L4TASK_FORM "\n",
__func__, PRINTF_L4TASK_ARG(thread_id));
}
#endif
#ifdef CONFIG_X86_DS
ds_exit_thread(current);
#endif
}
int kthreads_seq_show(struct seq_file *m, void *v)
{
int i = *(int *)v;
if (!l4_is_invalid_cap(l4lx_thread_names[i].id))
seq_printf(m, PRINTF_L4TASK_FORM ": %s\n",
PRINTF_L4TASK_ARG(l4lx_thread_names[i].id),
l4lx_thread_names[i].name);
return 0;
}
static void log_efault(const char *str, const void *user_addr,
const void *kernel_addr, unsigned long size)
{
pte_t *ptep = lookup_pte((pgd_t *)current->mm->pgd,
(unsigned long)user_addr);
printk("%s returning efault, \n"
" user_addr: %p, kernel_addr: %p, size: %08lx\n"
" task: %s (%p) " PRINTF_L4TASK_FORM
", pdir: %p, ptep: %p, pte: %lx\n",
str, user_addr, kernel_addr, size,
current->comm, current,
PRINTF_L4TASK_ARG(current->thread.user_thread_id),
current->mm->pgd, ptep, ptep ? pte_val(*ptep) : 0);
#ifdef DEBUG_KDEBUG_EFAULT
enter_kdebug("log_efault");
#endif
}