mutex_lock(&sessions_mutex);
+ ret = lttng_syscalls_unregister_event_notifier(event_notifier_group);
+ WARN_ON(ret);
+
list_for_each_entry_safe(event_notifier, tmpevent_notifier,
&event_notifier_group->event_notifiers_head, list) {
ret = _lttng_event_notifier_unregister(event_notifier);
}
switch (event_notifier->instrumentation) {
case LTTNG_KERNEL_TRACEPOINT:
+ case LTTNG_KERNEL_SYSCALL:
ret = -EINVAL;
break;
case LTTNG_KERNEL_KPROBE:
case LTTNG_KERNEL_UPROBE:
WRITE_ONCE(event_notifier->enabled, 1);
break;
- case LTTNG_KERNEL_SYSCALL:
case LTTNG_KERNEL_FUNCTION:
case LTTNG_KERNEL_NOOP:
case LTTNG_KERNEL_KRETPROBE:
}
switch (event_notifier->instrumentation) {
case LTTNG_KERNEL_TRACEPOINT:
+ case LTTNG_KERNEL_SYSCALL:
ret = -EINVAL;
break;
case LTTNG_KERNEL_KPROBE:
case LTTNG_KERNEL_UPROBE:
WRITE_ONCE(event_notifier->enabled, 0);
break;
- case LTTNG_KERNEL_SYSCALL:
case LTTNG_KERNEL_FUNCTION:
case LTTNG_KERNEL_NOOP:
case LTTNG_KERNEL_KRETPROBE:
break;
case LTTNG_KERNEL_KPROBE:
case LTTNG_KERNEL_UPROBE:
+ case LTTNG_KERNEL_SYSCALL:
event_name = event_notifier_param->event.name;
break;
case LTTNG_KERNEL_KRETPROBE:
case LTTNG_KERNEL_FUNCTION:
case LTTNG_KERNEL_NOOP:
- case LTTNG_KERNEL_SYSCALL:
default:
WARN_ON_ONCE(1);
ret = -EINVAL;
ret = try_module_get(event_notifier->desc->owner);
WARN_ON_ONCE(!ret);
break;
+ case LTTNG_KERNEL_NOOP:
+ case LTTNG_KERNEL_SYSCALL:
+ /*
+ * Needs to be explicitly enabled after creation, since
+ * we may want to apply filters.
+ */
+ event_notifier->enabled = 0;
+ event_notifier->registered = 0;
+ event_notifier->desc = event_desc;
+ if (!event_notifier->desc) {
+ ret = -EINVAL;
+ goto register_error;
+ }
+ break;
case LTTNG_KERNEL_UPROBE:
/*
* Needs to be explicitly enabled after creation, since
break;
case LTTNG_KERNEL_KRETPROBE:
case LTTNG_KERNEL_FUNCTION:
- case LTTNG_KERNEL_NOOP:
- case LTTNG_KERNEL_SYSCALL:
default:
WARN_ON_ONCE(1);
ret = -EINVAL;
desc->event_notifier_callback,
event_notifier);
break;
+ case LTTNG_KERNEL_SYSCALL:
+ ret = lttng_syscall_filter_enable_event_notifier(event_notifier);
+ break;
case LTTNG_KERNEL_KPROBE:
case LTTNG_KERNEL_UPROBE:
ret = 0;
break;
- case LTTNG_KERNEL_SYSCALL:
case LTTNG_KERNEL_KRETPROBE:
case LTTNG_KERNEL_FUNCTION:
case LTTNG_KERNEL_NOOP:
lttng_uprobes_unregister_event_notifier(event_notifier);
ret = 0;
break;
+ case LTTNG_KERNEL_SYSCALL:
+ ret = lttng_syscall_filter_disable_event_notifier(event_notifier);
+ break;
case LTTNG_KERNEL_KRETPROBE:
case LTTNG_KERNEL_FUNCTION:
- case LTTNG_KERNEL_SYSCALL:
case LTTNG_KERNEL_NOOP:
default:
WARN_ON_ONCE(1);
module_put(event_notifier->desc->owner);
lttng_kprobes_destroy_event_notifier_private(event_notifier);
break;
+ case LTTNG_KERNEL_NOOP:
+ case LTTNG_KERNEL_SYSCALL:
+ break;
case LTTNG_KERNEL_UPROBE:
module_put(event_notifier->desc->owner);
lttng_uprobes_destroy_event_notifier_private(event_notifier);
break;
case LTTNG_KERNEL_KRETPROBE:
case LTTNG_KERNEL_FUNCTION:
- case LTTNG_KERNEL_NOOP:
- case LTTNG_KERNEL_SYSCALL:
default:
WARN_ON_ONCE(1);
}
return 1;
}
-static
int lttng_desc_match_enabler(const struct lttng_event_desc *desc,
struct lttng_enabler *enabler)
{
WARN_ON_ONCE(ret);
}
+static
+void lttng_create_syscall_event_notifier_if_missing(struct lttng_event_notifier_enabler *event_notifier_enabler)
+{
+ int ret;
+
+ ret = lttng_syscalls_register_event_notifier(event_notifier_enabler, NULL);
+ WARN_ON_ONCE(ret);
+ ret = lttng_syscals_create_matching_event_notifiers(event_notifier_enabler, NULL);
+ WARN_ON_ONCE(ret);
+}
+
/*
* Create struct lttng_event if it is missing and present in the list of
* tracepoint probes.
case LTTNG_KERNEL_TRACEPOINT:
lttng_create_tracepoint_event_notifier_if_missing(event_notifier_enabler);
break;
+ case LTTNG_KERNEL_SYSCALL:
+ lttng_create_syscall_event_notifier_if_missing(event_notifier_enabler);
+ break;
default:
WARN_ON_ONCE(1);
break;